Stretcher for stretching a skin on a tane

专利摘要:
The present invention relates to apparatus for stretching a skin on a tane.
公开号:DK202000015U1
申请号:DK202000015U
申请日:2020-02-24
公开日:2020-02-27
发明作者:Frølund Søren；Fahlgren Andersen Mogens
申请人:Minkpapir A/S；
IPC主号:

专利说明:

Description
The present invention relates to apparatus for stretching a skin on a tane.
Background for the production
In the fur industry, animal skins are often stretched in a non-destructive manner in order to maximize the size of the fur. The skins define a substantially tubular shape and have an outwardly oriented fur side and an inwardly oriented leather side. The stretching is done after pelting the animal and scraping off the layer of fat on the leather side of the skin and before drying the skin. In the present context, the term skins is understood to include skins of mink, fox and similarly small mammals. The skins are often stretched on a tane, which today is made of plastic. Normally, the leather side of the skin faces the surface of the tan and the tan may additionally be provided with a fat-absorbing material such as a paper bag or cuff which is in contact with the leather side of the skin. The fur side of the skin thereby faces outward during the stretching and drying of the skin.
The stretching procedure and the use of tans are known as such and both are discussed in, for example, WO 2005/028682 A1. It discloses the use of a gripping element which is engaged with the entire periphery of the skin and the drawing of a holding bag over the outside of the skin in order to retain the skin in a stretched configuration during the drying of the skin. This avoids the previous use of staples and the thus elongated holes in the skin can be avoided.
In relation to the above terminology, the word bag, which in its normal meaning can be described as a cuff with a closed bottom, in the circumstances and further in the present utility model application is also understood to include cuffs which are not closed and which may have a tubular or cylindrical shape without a closed bottom.
WO 2006/026986 A1 discloses an auxiliary arrangement for clamping the nose end of a skin to a tane.
WO 2007/033681 A2 discloses a method and a machine for unfolding the tail portion of the skin in connection with the stretching of the skin on the tan.
DK 2020 00015 U1
WO 2008/025364 A1 relates to a method and a machine for performing water brushing of tanned skins in order to obtain a more presentable appearance of the skins.
WO 02/44428 A1 relates to another method and machine for stretching a skin on a tane. The skin is held in the stretched position by a cuff or pouch which is pulled over and around the tan so that the skin is pressed and locked against the tan. This method, also described above, is currently used as a standard method for fixing the skin in the stretched position in a non-damaging manner.
DK 169 525 B1 discloses a machine for stretching a skin. The machine includes a gripping mechanism for retaining the skin. Magnetic sensors are used to control the degree of stretching of the skin by the gripping mechanism.
DK 2000 01174 L discloses another method by which the stretched skin is held in a non-destructive manner using a leather bag or cuff.
EP 2 818 653 A1 discloses a hair control for mounting on an extruder. The control uses a nozzle or opening to provide a flow of air.
US 2003/0019255 A1 discloses yet another method of attaching a skin to a tan after stretching, using a cuff or bag, and a corresponding cuff for use in the method.
WO 2008/022644 A1 discloses a tubular holding bag which is pulled over the fur side of the skin to hold the skin in a stretched position.
WO 2005/080607 discloses a method and apparatus for attaching a skin to a tan using an extensible wrap foil supplied from a single foil wheel.
WO 2012/126467 discloses a technique for determining the maximum force to which a skin can be exposed by measuring the starting lengths of the skin before applying a tensile force to the skin and predicting the maximum allowable force which can be applied to the skin, starting from the starting length .
DK 2020 00015 U1
WO 2015/024788 discloses an apparatus and method for stretching a skin in accordance with which method and apparatus, the speed at which the skin is stretched is gradually reduced during the stretching of the skin.
It is recognized that by stretching the skin in accordance with the aforementioned previously known technologies by grasping the lower end of the skin, i.e. most of the pulling force is applied to the lower part of the skin, ie. the part of the skin which is closest to the tail end of the skin and less force is applied to the upper part of the skin, ie. the part of the fur closest to the nose portion of the fur. This is in contrast to the anatomy of the skin, since the upper part of the skin would normally be able to withstand a greater force than the lower part of the skin. Thus, the skin will not be stretched in an optimal way by applying the tensile force to the lower part of the skin. Thus, it is an object in accordance with the present invention to provide technologies to suitably extend both the upper portion of the skin and the lower portion of the skin.
Further, in connection with the stretching of the lower part of the skin, it is recognized that the application of the tan incl. the skin in a suitable stretching position is troublesome due to the fact that the gripping mechanism, which is intended to secure the skin around its entire contour, ie. Both the back side contour and the leg side contour prevent access for the user. Thus, it is an object of the present invention to provide technologies to simplify user access to the stretching apparatus.
Further, it is recognized that the stretching operation, and in particular fine tuning of the gripping mechanisms, requires the user to hold one hand on the skin while the other handles the user interface of the stretching apparatus. This is a disadvantage over the alignment of the skin in the stretching apparatus and it would be advantageous if the user could be able to use two hands to handle the skin instead of just one hand. Thus, it is an object of the present invention to provide technologies to enable the user to handle the stretching apparatus while holding both hands on the skin.
Further, it is recognized that the winding operation, performed using a single stretch arm wrap foil, suffers from serious disadvantages, particularly in relation to the speed of operation and the physical influence of the tan and the fixation of the tan upon stretching of the winding foil
DK 2020 00015 U1 there winding operation. Thus, it is an object of the present invention to provide technologies to allow improved fastening of the skin relative to the tan in relation to speed and fixation strength, in comparison with the prior art single foil winding technology.
Further, it is recognized that the non-symmetrical structure of a skin, especially a skin of a mink or equivalent fur, is inhomogeneous and for this reason the difference in the length of the skin when the skin is subjected to the stretching operation may cause bending of the tan, which initially, the tan is subjected to excessive forces and further it may cause an incorrect stretching of the skin, which incorrect stretching does not establish the intended displacement of length from one class to another.
Further, it is recognized that the stretching of the skin may advantageously be combined with a fur processing step, such as a step of brushing the fur side of the skin, using rollers, to properly orient the hair on the skin, or a comb to orient the hair on the skin in a intended and appropriate orientation before or after stretching of the skin using the skin pulling apparatus.
Summary of the production
At least the above object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved according to one aspect of the present invention by a stretching apparatus for stretching a skin on a tan, which skin has a essentially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose and a rear end, and a pair of forehead cavities defining a top end to receive and fix the nose end of the skin, a circumferential wall to face it. inwardly oriented leather side of the skin and a bottom, located opposite the top end, comprising:
a retaining device for holding the bottom end of the tan, and a stretching device having a pair of stretching elements, each of said stretching elements being arranged to be inserted into each of its front spacer cavities, said stretching device being movable in a direction against the retaining device for stretching the skin.
DK 2020 00015 U1
The skin, tan and how the skin is mounted on the tan are described in detail above. The forelimb cavities form in the skin after fur and cutting of the animal's paws. The forelimb cavities may comprise smaller tubular skin portions which initially covered the forelimbs of the animal and which are usually inverted and folded inwardly to be located between the leather side of the skin and the tan so that these portions are also dried. Thus, on the outside of the skin, when this is mounted on the tan, voids which have been referred to as forehead cavities appear.
The holding device holds the bottom end of the tine in a fixed position and preferably in a vertical orientation such that the tan extends upward from the holding device and consequently the skin extends on the tan from a rear end adjacent to the holding device to a nose pointing upwards and away from the holding device.
The pair of stretching elements in the stretching device can be inserted into each of its front leg cavities and thus at least partially penetrate the leg portion of the skin which has been inverted as explained above. By moving the tensioning member against the retaining device, typically downwards, the skin will be stretched since the stretching elements will cause the leg cavities to move with the stretching elements, thereby applying a tensile force on the upper part of the skin, ie. the part of the fur closest to the reading end. Thereby the skin can be stretched in a non-destructive manner without having to attach any part of the skin and still allow air to access all parts of the leather side of the skin. Typical forces involved are about 100-150N to obtain a suitable non-destructive stretch of the upper skin.
According to a further embodiment of the above aspect, the stretching elements comprise cylindrical pins. Such cylindrical pins will be advantageous for penetrating into the leg cavities and applying the tensile force in a non-destructive manner.
According to a further embodiment of the above aspect, the apparatus comprises a first fastener for securing the rear end of the skin. The first fastener is movable in a direction against the retainer for stretching the skin. Preferably, the lower end of the skin is also stretched simultaneously with the upper part of the skin. The stretching of the lower part of the skin may be carried out in accordance with the prior art or as will be further described hereinafter. Generally, the rear end of the skin is secured to a fastener which is then moved in a direction towards the holding device, i.e. generally downward. The attachment device
DK 2020 00015 U1 should fasten the skin along its entire contour and not just the tail and hind legs, as otherwise the non-attached parts of the lower end contour will not be stretched and contracted, thus providing a lower cost for the skin.
According to a further embodiment of the above-mentioned aspect, the apparatus comprises a second fastener for securing a tail portion extending from the rear end of the skin, which other fastener is movable in a direction towards the retaining device for stretching the skin. In addition to the above, it may be advantageous to stretch the tail portion since the tail forms part of a very dense connective tissue which extends from the tail portion along the back of the skin to the nose portion, which tissue may be able to withstand a greater tensile force.
According to a further embodiment of the above-mentioned aspect, the apparatus comprises a third fastening device for fastening and fixing the nose end of the skin, which third fastening device is movable in a direction towards the retaining device for stretching the skin. Optionally, the nose end can be fixed and moved in a direction away from the holding device, ie. typically upwards. Since the tensile force is applied to the skin, the stiffness of the tan sets a finite limit on the amount of stretch that can be applied to the skin, as excessive stretching would cause the tan to bend and any further stretch will not stretch the skin but bend the tan further. To avoid this and relieve the load on the tan, the nose end can be moved in the opposite direction of the tensile force, thereby relieving the tan and allowing a higher total tensile force.
According to a further embodiment of the above aspect, the tensioning device, the first fastening device and / or the second fastening device and / or the third fastening device are movable by means of a pneumatic drive, a hydraulic drive or a spindle drive. The aforementioned drive mechanisms can be used to perform an efficient and accurate stretching.
According to a further embodiment of the above aspect, the first fastener and / or the second fastener comprise opposing gripping elements for gripping the skin between the inwardly oriented leather side and the outwardly oriented fur side. In order to obtain a firm fastening of the rear end of the skin, the skin is preferably gripped between opposing gripping elements.
DK 2020 00015 U1
According to a further embodiment of the above aspect, the holding device, the stretching device, the first fastening device, the second fastening device and / or the third fastening device comprise one or more vibration actuators to induce one or more oscillations on the skin. By vibrating the skin at the same time as it is stretched, ie. Inducing an oscillating motion in the skin, the fibers in the skin tissue can be further loosened in a non-destructive manner, which allows the skin to be stretched more than by simply applying the stretching force in a single direction.
According to a further embodiment of the above aspect, the vibration actuator will operate at a frequency between 1 Hz and 100 Hz. Such frequencies will be advantageous for achieving the above effect.
According to a further embodiment of the above-mentioned aspect, the stretching device, the first fastening device, the second fastening device and / or the third fastening device comprise a compressed air outlet for temporarily removing any fur hair placed adjacent to the compressed air outlet. By allowing a flow of compressed air to be directed to the area of the skin which will be secured by the stretching device and / or the fastening device where it is present, the area of contact between these devices and thereby the area of the skin where the stretching force is applied will be free. for hair and thus, the hair that originally covered these areas will remain substantially unaffected and undamaged by the stretch.
According to a further embodiment of the above aspect, the tensioning apparatus further comprises a holding bag application unit. The holding bag can be applied automatically to the tan after the stretching is completed, using a holding bag application unit.
According to a further embodiment of the above aspect, the bottom end of the tan comprises a connecting element and the holding device comprises a locking member for locking the connecting element to the holding device. Thereby, the tan remains in a substantially fixed and upright position during stretching and the risk of bending the tan during stretching is thereby reduced.
According to a further embodiment of the above-mentioned aspect, the pair of stretch members is interconnected with a rack and pinion actuator. On this
DK 2020 00015 U1 way, the stretch elements can be adapted to different widths between the front cavities for different skins.
At least the above object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved according to one aspect of the present invention by a stretching device for stretching a skin on a tan, which skin has a essentially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose, a rear end and a pair of forehead cavities defining a top end to receive and fix the nose end of the skin, a circumferential wall to face it. inwardly oriented leather side of the skin and a bottom positioned opposite the top end, which skin further defines a contour constituting a leg side contour and a back side contour, which comprises:
a holding device for holding the bottom end of the tan, said tensioner defining a tanning space extending outwardly along a longitudinal direction from the holding device to receiving the tan, a tensioner having a pair of tensioner members, each of said tensioner members being adapted to be inserted into each a forehead cavity in the skin, which stretching device is movable in a direction against the retaining device for stretching the skin, and a fastener which comprises a first gripping mechanism for securing the rear end of the skin along either the back side contour or leg side contour, and a second gripping mechanism for securing the back end along either the leg side contour or the back side contour, the first gripping mechanism and the second gripping mechanism being movable in the longitudinal direction and the second gripping mechanism being further moveable between a first position in which the first gripping mechanism and the second gripping mechanism anise is located on the same side of the tanning room, and a second position in which the first gripping mechanism and the second gripping mechanism are located on opposite sides of the tanning space.
The above aspects are preferably used to obtain a complete stretch of both the upper and lower parts of the skin.
At least the aforementioned object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved.
According to one aspect of a method for stretching a skin on a tan, comprising performing the following steps:
providing the skin and the tan, the tan having a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose, a rear end, and a pair of frontal cavities, the tan defining a top end to receive and fix the nose end of the skin a circumferential wall for facing the inwardly oriented leather side of the skin and a bottom positioned opposite the top end, providing a tensioning apparatus comprising a retaining device and a stretching device having a pair of stretching elements, retaining the bottom end of the tan by the retaining device, inserting of each of the stretching elements of the stretching device in each of its front leg cavities on the skin, and movement of the stretching device in a direction against the holding device, thereby stretching the skin.
The above method is preferably used in conjunction with the above apparatus.
At least the above object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved according to one aspect of the present invention by a stretching device for stretching a skin on a tan, which skin has a essentially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose and a rear end, the tan defining a top end for receiving and fixing the nose end of the skin, a circumferential wall for facing the inwardly oriented leather side of the skin and a bottom positioned opposite the top end, further defining a contour constituting a leg side contour and a back side contour, which stretching apparatus comprises:
a retaining means for retaining the bottom end of the tan, which stretching device defines a tanning space extending outwardly along a longitudinal direction from the retaining device for receiving the tan, and a fastening device comprising a first gripping mechanism for securing the rear end of the tire along either the back side contour or the leg side contour, and a second gripping mechanism for securing the rear end of the skin along either the leg side contour or the back side contour, the first gripping mechanism
DK 2020 00015 U1 and the second gripping mechanism are movable in the longitudinal direction and the second gripping mechanism is further moveable between a first position in which the first gripping mechanism and the second gripping mechanism are located on the same side of the tanning space and a second position in which the first gripping mechanism and the second gripping mechanism are located on opposite sides of the tanning space.
The skin and tan are described in detail above. The skin has a substantially tubular shape with four leg portions on one leg side and a back side opposite the leg side. The skin defines a rear end which is understood to be the part of the skin where the tail part and hind legs are located. In this context, the contour of the skin is to be understood as constituting the circumference of the skin, which is divided into a leg side contour and a back side contour, each constituting about half of the full contour.
The holding device holds the bottom end of the tine in a fixed position and preferably in a vertical orientation such that the tan extends upwardly from the holding device and, consequently, the skin extends on the tan from a rear end adjacent to the holding device to a nose pointing upwards and away from the holding device. Thus, the retaining device defines a tanning space in the stretching apparatus which should be free of obstacles to allow the tanning to be properly positioned.
The first gripping mechanism fixes the back of the skin along any of the leg side or back side contours, preferably the back side contour. Thus, it is preferred that the entire half of the contour be fixed by the first gripping mechanism to achieve a uniform stretch of the skin. The first gripping mechanism is preferably spaced from the user. The first and second gripping mechanisms are synchronously movable in a longitudinal direction by means of a drive mechanism located behind the first gripping mechanism to adjust the position of the gripping mechanisms and to perform the stretching.
The second gripping mechanism is movable between a first position which constitutes a mounting position used to simplify the placement of the tan in the holding device and to simplify access to the tan compartment, and a second position which is a stretching position used when the apparatus extends the skin. In the first position, the second gripping mechanism is located behind the tanning room and preferably adjacent to the first gripping mechanism, which allows the user to freely access the tanning room for
Place the tan in the correct position. In the second position, the second gripping mechanism is located on the opposite side of the tanning compartment, so that the tuck, when mounted in the holding device, is located between the first gripping mechanism and the second gripping mechanism.
Once the first gripping mechanism has been secured to the rear end of the skin, the second gripping mechanism is moved from the first position to the second position and then the second gripping mechanism is secured to the rear of the skin along the contour not already fixed by the first gripping mechanism, which is preferably is the benzide contour. Then the stretching of the skin is initiated.
According to a further embodiment of the above aspect, the first gripping mechanism secures the rear end of the skin along the back side contour and the second gripping mechanism secures the rear end of the skin along the leg side contour. Preferably, the tan side faces the user during fixation.
According to a further embodiment of the above aspect, the first gripping mechanism and / or the second gripping mechanism comprises a gripping element and an opposing holding element, the gripping element being movable relative to the holding element in order to retain the rear end of the skin between the gripping element and the holding element. Preferably, the skin is held between the gripping member and the holding member which are movable to hold the skin between the fur side and the leather side.
According to a further embodiment of the above-mentioned aspect, the second gripping mechanism comprises a first half and a second half, each half being arranged to grip about a quarter of the contour. Each half can be moved separately between the first position and the second position.
According to a further embodiment of the above aspect, the first half and the second half, when in the first position, are located on opposite sides of the tanning space. Thus, the first half and the second half are positioned on opposite sides of the first gripping mechanism when in the first position.
According to a further embodiment of the above aspect, the movement between the first position and the second position involves a linear movement and a rotational movement of the second gripping mechanism. Preferably the second one
When moving from the first position to the second position, first pulled forward and then rotated to face the tane in the tanning room, in the second position. After mounting and stretching, reverse the procedure before removing the tan.
According to a further embodiment of the above aspect, the holding device and / or the fastening device comprises a vibration actuator for inducing an oscillation on the skin. By vibrating the skin at the same time as it is stretched, ie. by inducing an oscillating motion in the skin, the fibers in the skin can be further loosened in a non-destructive manner, thereby allowing the skin to be stretched longer than by simply applying the stretching force in a single direction.
According to a further embodiment of the above aspect, the vibration actuator operates at a frequency between 1 Hz and 100 Hz. Such frequencies will be advantageous for achieving the above effect.
According to a further embodiment of the above aspect, the tensioning apparatus further comprises a holding bag application device. The holding bag can be automatically applied to the tan after the stretching has been performed using a holding bag application device.
According to a further embodiment of the above-mentioned aspect, the bottom end of the tan comprises a connecting element and the holding device comprises a locking part for locking the connecting element to the holding device. Thereby, the tan remains in a substantially fixed and upright position during the stretch and the risk of bending the tan during the stretch is thereby reduced.
According to a further embodiment of the above-mentioned aspect, the fastener comprises a compressed air outlet for temporarily removing any fur hairs placed adjacent to the compressed air outlet. By allowing a flow of compressed air to be directed against the area of the skin which will be fixed by the stretching device and / or the fastening device, when available, the area of contact between these devices and thereby the area of the skin to which the stretching force is applied will be free of hair and thus the hair which initially covered these areas will remain substantially unaffected and undamaged by the stretch.
DK 2020 00015 U1
According to a further embodiment of the above-mentioned aspect, the holding device and / or the fastening device are movable by means of a pneumatic drive, a hydraulic drive or a spindle drive. The aforementioned drive mechanisms can be used to perform an efficient and accurate stretching.
According to a further embodiment of the above aspect, the fastener comprises a laser for generating a visual alignment line on the skin. In this way, the positioning of the skin is simplified as the user will be assisted in the alignment of the skin. The correct positioning is critical for obtaining a proper stretching of the skin and to avoid any misalignment of the skin caused by poor positioning of the skin in the fastening mechanism.
At least the above object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved according to one aspect of the present invention by a stretching device for stretching a skin on a tan, which skin has a essentially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose, a rear end and a pair of forehead cavities defining a top end to receive and fix the nose end of the skin, a circumferential wall to face it. inwardly oriented leather side of the skin and a bottom positioned opposite the top end, the skin further defining a contour constituting a leg side contour and a back side contour, which comprises:
a holding device for holding the bottom end of the tan, which extensions defines a tanning space extending outwardly along a longitudinal direction from the holding device for receiving the tan, and a tensioner having a pair of tapping elements, each of the tapping elements being arranged to be inserted into each its forehead cavity in the skin, which stretching device is movable in a direction against the retaining device for stretching the skin, and a fastener which comprises a first gripping mechanism for securing the rear end of the skin along either the back side contour or the leg side contour, and a second gripping mechanism for securing the back end the skin along either the leg side contour or the back side contour, which first gripping mechanism and second gripping mechanism are movable in the longitudinal direction and the second gripping mechanism is further movable between a first position;
DK 2020 00015 U1 wherein the first gripping mechanism and the second gripping mechanism are located on the same sides of the tanning space, and a second position in which the first gripping mechanism and the second gripping mechanism are located on opposite sides of the tanning space.
Preferably, the above aspect is used to obtain a complete stretch of both the upper and lower parts of the skin.
At least the aforementioned object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved according to one aspect of a method for stretching a skin on a tan, which skin has a substantially tubular shape which defines an inwardly oriented leather side, an outwardly oriented fur side, a nose and a rear end, which tane defines a top end for receiving and fixing the nose end of the skin, a circumferential wall to face the inwardly oriented leather side of the skin, and a bottom located opposite the top end, which skin further defines a contour constituting a leg side contour and a back side contour, the method comprising the following steps:
providing a tensioning apparatus comprising a retaining device and a securing device which comprises a first gripping mechanism and a second gripping mechanism, retaining the bottom end of the tine by the retaining means such that the tan extends outwardly along a longitudinal direction from the holding device, movement of the first gripping mechanism and the second gripping mechanism along the longitudinal direction, securing the rear end of the skin along either the back side contour or the leg side contour using a first gripping mechanism, movement of the second gripping mechanism from an initial first position in which the first gripping mechanism and the second gripping mechanism are positioned thereon. the same side of the tan, to a second position in which the first gripping mechanism and the second gripping mechanism are located on opposite sides of the tan, and securing the rear end of the skin along either the leg side or back side contour.
The above method is preferably used in conjunction with the above apparatus.
DK 2020 00015 U1
At least the above object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved according to one aspect of the present invention by a stretching device for stretching a skin on a tan, which skin has a essentially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose and a rear end, which tane defines a top end to receive and fix the nose end of the skin, a circumferential wall to face the inwardly oriented leather side of the skin and a bottom positioned opposite the top end, which stretching apparatus comprises:
a holding device for holding the bottom end of the tan, a fastener comprising a gripping mechanism for securing the rear of the skin, said fastener further comprising a drive mechanism for moving the first fastener relative to the holding device and for positioning the rear end of the skin in the gripping mechanism which is a gripping mechanism. controlled by a first user interface and the drive mechanism is controlled by a second user interface, the first user interface and / or the second user interface being located at a distance of less than 30 cm from the gripping mechanism.
The skin and tan are described in detail above. The holding device holds the bottom end of the tine in a fixed position and preferably in a vertical orientation such that the tan extends upwardly from the holding device and consequently the skin extends on the tan from a rear end adjacent to the holding device to a nose pointing upwards and away from the holding device. The gripping mechanism fixes the back of the fur along its contour between the fur side of the fur and the leather side of the fur. In this connection, it is important that the entire tubular contour of the skin is fixed, otherwise the skin can be tilted obliquely during stretching.
Thus, the gripping mechanism comprises two distinct states, namely a fixed state in which the gripping mechanism fixes the rear end of the skin, and a non-fixed state in which the skin is loosened relative to the gripping mechanism. In order for the skin to be brought into the correct position, the gripping mechanism is initially in the loose state, which allows the user to insert the rear end of the skin between the gripping elements of the gripping mechanism. The user can fine-tune the position manually and by moving the entire fastening device incl. the gripping device, both against and away from the holding device by using the drive mechanism, the user can position the rear end of the skin in the correct longitudinal position.
DK 2020 00015 U1
The gripping mechanism is controlled by a first user interface and the drive mechanism is controlled by a second user interface, both of which should be positioned so that the user can activate both user interfaces while still holding hands on the skin to ensure that the correct alignment of the rear end of the skin is maintained while the user is changing. position of the fastener using the same hands. This can be accomplished by placing both user interfaces at a distance of less than 30 cm from the gripping mechanism.
In this way, the user can hold both hands on the back of the skin while simultaneously adjusting the gripping mechanism to the correct position and securing the skin to the gripping mechanism while holding both hands on the skin.
According to a further embodiment of the above aspect, the first user interface and / or the second user interface is located less than 30 cm from the gripping mechanism, preferably less than 20 cm, more preferably less than 10 cm, most preferably less than 5 cm. More advantageously, the first user interface, the second user interface, or both user interfaces are located even closer to the gripping mechanism, such as the aforementioned distances.
According to a further embodiment of the above aspect, the first user interface and / or the second user interface comprises a proximity sensor such as a photodetector or an IR sensor. Preferably, touch-free or contact-free interfaces are used which eliminate the need for the user to activate a button or the like, with the limited possibilities of moving the hand that the user has when he is already holding the back of the skin and trying to position it in the correct position in the relationship to the gripping mechanism.
According to a further embodiment of the above aspect, the first user interface and / or the second user interface comprises a pressure sensor, a resistance sensor or a capacitive sensor. Alternatively, a touch sensor is used. In this way, accidental activation of the sensor can be avoided.
According to a further embodiment of the above aspect, the second user interface comprises a first sensor for causing the drive mechanism to move the fastener away from the holding device, and a second sensor for causing the drive mechanism to
DK 2020 00015 U1 nism moves the fastener against the holding device. The second user interface is preferably divided into two separate sensors to individually control the two different directions of the drive mechanism. The two sensors are preferably based on opposite sides of the gripping mechanism so that each sensor can be operated by one separate hand. According to a further embodiment of the above-mentioned aspect, the distance between the gripping mechanism and the holding mechanism without obstacles and / or the stretching device enables a human user to simultaneously reach both the gripping mechanism and the holding mechanism with the same hand. Preferably, the user interfaces are positioned without any obstacles between the user interfaces and the gripping mechanism in order to improve the user's ability to access the user interfaces while manipulating the back of the skin.
According to a further embodiment of the above aspect, the holding device and / or the fastening device comprise a vibration actuator for inducing an oscillation on the skin. By vibrating the skin at the same time as it is stretched, ie. Inducing an oscillating movement of the skin, the fibers in the skin tissue can be further loosened in a non-destructive manner, allowing the skin to be stretched further than by simply applying the stretching force in a single direction.
According to a further embodiment of the above aspect, the vibration actuator operates at a frequency between 1 Hz and 100 Hz. Such frequencies will be advantageous for achieving the above effect.
According to a further embodiment of the above aspect, the tensioning apparatus further comprises a holding bag application device. The holding bag can be applied automatically to the tan after the stretching is completed, using a holding bag application device.
According to a further embodiment of the above aspect, a bottom end of the tan comprises a connecting element and the holding device comprises a locking device for locking the connecting element to the holding device. Thereby the tan remains in a substantially fixed and upright position during stretching and the risk of bending the tan during stretching is thereby reduced.
DK 2020 00015 U1
According to a further embodiment of the above-mentioned aspect, the fastener comprises a compressed air outlet for temporarily removing any fur hairs placed adjacent to the compressed air outlet. By allowing a flow of compressed air to be directed against the area of the skin which will be secured by the stretching device and / or the fastener where it is present, the area of contact between these devices and thereby the area of the skin where the stretching force is applied will be free of hair and thus the hairs which initially cover these areas will remain substantially unaffected and undamaged by the stretch.
According to a further embodiment of the above aspect, the holding device and / or the fastening device are movable by means of a pneumatic drive, a hydraulic drive, an electric drive or a spindle drive. The aforementioned drive mechanisms can be used to perform an efficient and accurate stretching.
According to a further embodiment of the above aspect, the fastener comprises a laser for generating a visual alignment line on the skin. In this way, the positioning of the skin is simplified, since the user will be assisted in aligning the skin. The correct positioning is critical for obtaining a proper stretching of the skin and avoids any misalignment of the skin caused by incorrect positioning of the skin in the fastening mechanism.
According to a further embodiment of the above aspect, the fastening device comprises opposing gripping elements for gripping the skin between the inwardly oriented leather side and the outwardly oriented fur side. The gripping elements initially occupy the non-fixed position when the rear end of the skin is inserted between the gripping elements and the drive mechanism is used to position the gripping mechanism at the rear of the skin. The fixed position is used when the back of the skin is fixed between opposing gripping elements for strengthening the skin.
At least the above object or at least one of several additional objects which will become apparent from the following description of the present invention is achieved by a method of stretching a skin on a tan, comprising performing the following steps:
providing the skin and the tan, which skin has a substantially tubular shape which defines an inwardly oriented leather side, an outwardly oriented fur side, a
And a rear end defining a top end for receiving and fixing the nose end of the skin, a circular wall for facing the inwardly oriented leather side of the skin and a bottom positioned opposite the top end, providing a tensioning apparatus which comprises a holding device and a fastener, which fastener comprises a gripping mechanism and a driving mechanism, providing a first user interface for controlling the gripping mechanism and a second user interface for controlling the drive mechanism, the first user interface and / or the second user interface being spaced less than 30 cm from the gripping mechanism, retaining the bottom end of the tine by the holding device, moving the first fastening device relative to the holding device, and positioning the rear end of the skin in the gripping mechanism, using the second user interface, activating the gripping mechanism, using creation of the first user interface.
Advantageously, the above method can be used with the above apparatus.
Further aspects of the present invention include stretching arrangements comprising combinations of tans and stretchers as described in accordance with any of the above aspects.
At least one of the aforementioned objects or at least one of several additional objects which will become apparent from the following description of the present invention is achieved according to a further aspect of the present invention by an apparatus for fixing a skin to a tan, which skins has a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose, a rear end, and a pair of forehead cavities defining a top end for receiving and fixing the nose end of the skin, a circumferential wall for reversing against the inwardly oriented leather side of the skin and a bottom positioned opposite the top end, which apparatus comprises:
a holding device for receiving the bottom end of the tan and holding the tan,
DK 2020 00015 U1 a fastener with a pair and preferably two pairs of gripping elements for gripping and retaining the skin relative to the tan by gripping and fastening the rear end of the skin relative to the tan, and a winding device comprising at least two winding foil units for winding foil about the skin at the back of the skin for fixing the skin to the tan, which at least two foil wrap units are positioned to apply the wrap foils to the skin from positions which cause the cover of each of the foils to be offset by the pull of the other foil or other foils.
In accordance with the teachings of the present invention, it has been realized that the rate of winding foils around a skin located on a tine can be increased by using several, at least two foils instead of a single foil. Apart from increasing the speed of using multiple wrap foils instead of a single wrap foil, the use of several wrap foils according to the teachings of the present invention allows an increased tensile force to be applied to the tan without causing the tan to shift or dislocate relative to the holding device. two or more wrap sheets according to the teachings of the present invention are used to offset the pull of the wrap sheets and in doing so, they do not exert any traction or substantially no pulling force on the tan while performing the winding operation. Accordingly, in applying the traction equalization concept in accordance with the present invention, the fixation of the tan to the apparatus need not involve a rigid connection, but allows a simple resting of the tan in the holding device and further reduces the physical influence of the tan during winding of the wrap foil around the rear end. pelt.
According to alternative embodiments of the apparatus according to the further aspects of the present invention, the two wrap foil units are located on opposite sides of the tan and symmetrical to the tan to apply the wrap foils from opposite sides of the tan. Alternatively, three or more foil wrap units may be used, provided that the several wrap foil units are located at the same mutual angular distance, the wrap foil units being in a number n and the angular distance between any two adjacent wrap foil units being 360 ° / n. The use of three wrap foil units allows the use of three individual wrap foils, which clearly reduces the wrap application time required and also provides a very advantageous 120 ° spacing, which is known per se from other technical fields.
DK 2020 00015 U1
The winding of the several wrap foils around the back of the skin may be performed in accordance with two alternative variants, one involving rotation of the winding units relative to the tan or around the tan, or alternatively it may be performed by rotating the tan, the tan being located at the center of the an imaginary circle on which the winding units are placed. It is contemplated that the use of a rotary tan rotated relative to stationary winding units is particularly advantageous, provided that the number of winding units is greater than two units, the complexity of performing the winding operation being clearly reduced by the simple rotation of the tane and retention. of the winding units stationary, in comparison with the inverse winding unit rotation setup.
In accordance with a further aspect, a method of fixing a skin to a tane is provided, which method comprises a method of fixing a skin to a tane comprising performing the following steps:
providing the skin and the tan, which skin has a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose, a back end, and a pair of forehead cavities defining a top end to receive and fix the nose end of the skin, a circumferential wall for facing the inwardly oriented leather side of the skin, and a bottom positioned opposite the top end, providing an apparatus comprising a holding device, a fastener and a winding device which serves to receive the bottom end of the tine and retaining said tuck having a pair and preferably two pairs of gripping members for gripping and retaining the skin relative to the tan by gripping and fastening the rear end of the tine relative to the tan, said winding device comprising at least two winding foil units for wrapping foils about the fur at the back of the fur, which method further e comprises: positioning the tan in the holder, securing the skin to the tan by means of the pair or preferably two pairs of gripping elements, after stretching the skin on the tan, and winding foil from the at least two wrap foil units around the skin at the rear of the skin for fixing the skin to the tan and during doing so, applying the wrap sheets to the skin from positions which cause the cover of each of the sheets to be offset by the cover of the other film or sheets.
DK 2020 00015 U1
At least one of the several additional objects and / or the aforementioned objects together with one or more of the several additional objects, which will become apparent from the following description of the present invention, is achieved according to a further aspect of the invention by a stretching apparatus for stretching a skin of a tan, said skin having a substantially tubular shape which defines an inwardly oriented leather side, an outwardly oriented fur side, a nose, a back end and a backpiece comprising a tendon-shaped ligament which defines a top end to receiving and fixing the nose end of the skin, a circumferential wall to face the inwardly oriented leather side of the skin, and a bottom positioned opposite the top end, which comprises:
a holding device for holding the bottom end of the tan, a fastener for fastening the rear end of the skin and movable with respect to the holding device for stretching the skin, and a holding and supporting device for holding and supporting the top end of the tan to prevent the tendon-shaped ligament end causes the tan to bend when stretching the skin.
According to the basic teachings of the present invention, it is realized that the tendonous ligament in skins, especially the skins of mink, causes a high tensile resistance to the stretching of the skins, thereby causing a bend of the tan which bend, according to the teachings of the present invention, is prevented by the restraint and support device of the present invention, which serves to prevent or at least reduce the rearward bending of the tan, in this context referring back to the back of the skin.
In accordance with various embodiments of the tensioning apparatus according to the present invention, an alternative embodiment of the retaining and supporting device is constituted by an arm having an arm end for gripping the top end of the tan.
A further alternative embodiment of the retaining and supporting device comprises an annular end portion for circumferential wrapping and supporting the tine at the nose end of the skin, by stretching the skin.
DK 2020 00015 U1
Another further alternative embodiment of the retaining and support device comprises a cup-shaped end portion for enclosing the nose end of the skin at the top end of the tan.
At least one of the several additional objects and / or the aforementioned objects together with one or more of the several additional objects, which will become apparent from the following description, are achieved in accordance with a further aspect of a method of stretching a skin of a tane comprising the following steps:
providing the skin on the tan, which skin has a substantially tubular shape defining an inwardly oriented leather side and an outwardly oriented fur side, a nose, a back end and a back piece comprising a tendon-shaped ligament which defines a tip end to receiving and fixing the nose of the skin, a circumferential wall to face the inwardly oriented leather side of the skin, and a bottom positioned opposite the top end, providing a tensioning device comprising a holding device, a fastener, and a holding and supporting device serving the holding device. holding the bottom end of the tan, which fastener is for attaching the back end of the skin, which retaining and supporting device serves to support the top end of the tan to prevent the tendon ligament from causing the tan to bend when stretching the skin, applying the skin to the tan, placing the tan in ho the fastener before or after applying the skin to the tine, securing the fastener to the rear end of the skin, moving the fastener relative to the retaining device for stretching the skin, and including supporting the top end of the tan by means of the retaining and supporting device.
At least one of the several additional objects and / or the aforementioned objects together with one or more of the several additional objects which will become apparent from the following description of the present invention is achieved according to a further aspect of the present invention by a stretching apparatus for stretching. of a skin on a tan, said skin having a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose, a back end and a backpiece comprising a tendon-shaped ligament defining a top end for to receive and fix the nose end of the skin, a circular wall to face it
DK 2020 00015 U1 inwardly oriented leather side of the leather and a bottom positioned opposite the top end, which includes:
a holding device for holding the bottom end of the tan, a fastener for fastening the rear end of the skin and movable relative to the holding device for stretching the skin, and a fur-side working tool supported movable with the tan along the first side from a proximity position to a rear end position and to be returned from the rear end position to the nose position.
In accordance with the basic teachings of the present invention, it is realized that the proper stretching and preparation of a high quality skin may involve the steps of machining the fur side of the skin using a roller, brush or comb to orient the hair on the skin. a correct orientation before the skin drying step after the skin is stretched on the stretching apparatus. It should be realized that the machining of the fur side of the skin can be accomplished before or after the stretching operation as such.
According to the presently preferred embodiment of the stretching apparatus according to the present invention, the apparatus further comprises a vertical stand device which supports the holding device, the fastening device and the fur side-working tool, which fur-side-working tool is hinged vertically movable with respect to the stand.
According to advantageous embodiments of the stretching apparatus of this invention, the fur side machining tool comprises agitator elements such as rollers, brushes, combs or other elements to contact the fur side of the skin, and the agitator elements may preferably be driven by a motor to provide a mechanical machining of the fur.
According to the presently preferred embodiment of the stretching apparatus of the present invention, a fur-side machining tool is positioned circumferentially around the tan.
DK 2020 00015 U1
At least one of the several additional objects and / or the aforementioned objects together with one or more of the several additional objects which will become apparent from the following description is achieved according to a further aspect of a method for stretching a skin on a tan. , which includes the following steps:
providing the skin and the tan, which skin has a substantially tubular shape defining an inwardly oriented leather side and an outwardly oriented fur side, a nose, a back end and a backpiece comprising a tendon-shaped ligament which defines a top end to receive and fixing the nose of the skin, a circumferential wall to face the inwardly oriented leather side of the skin, and a bottom positioned opposite the top end, providing a stretching apparatus comprising a retaining device, a fastener, and a fur side-working tool, which retaining device serves to hold the bottom end of the tine, fastener serves to secure the back of the skin, which fur side machining tool is movably supported relative to the tan, positioning the skin on the tan, positioning the tan in the holding device before or after placing the skin on the tan, securing the fastener to the back movement of the fastening device relative to the holding device for stretching the skin and before or after said stretching of the skin, movement of the fur-side working tool along the fur-side of the skin from a feeding position to a rear end position and returning the working tool from the rear end position to the rear position.
The techniques of fixing a skin to a tan can be combined with the above-mentioned techniques of stretching a skin, the winding apparatus being combined in a combined stretching and winding apparatus as will be apparent from the following detailed description of a presently preferred embodiment of apparatus according to the present invention.
The techniques of stretching a skin while preventing backward bending of the tan in accordance with the teachings of the present invention can, as will be readily understood, be combined with the aforementioned techniques for fixing a skin relative to a tane and stretching a skin while retaining and the support device for the tensioning apparatus according to the present invention can immediately
DK 2020 00015 U1 is provided with a combined stretching and winding arrangement, as will be apparent from the following description of advantageous embodiments of the apparatus according to the present invention.
The basic technique of stretching a skin using an apparatus for stretching the skin and carrying out a method of stretching the skin has been the subject of several studies incl. studies conducted by the applicant firm. As such, the studies have resulted in the formation or generation of diagrammatic representations of the relationship between applied force to a skin and the increase in length or actual length of the skin obtained by stretching the skin by applying that force. As stated above, several suggestions are presented as safe predictions of the maximum force to which the skin may be exposed, in accordance with the teachings of WO 2012/126467, a prediction is made from the initial length of the skin in accordance with a linear relation. However, the experiments conducted by the applicant company have revealed that, apart from the force applied, the power gradient, ie. the increase in power per. incremental length increase is more important in determining the safe maximum force to which the skin can be exposed before the skin is torn. Further, the experiments carried out by the applicant company have revealed that for a specific species, for example, male or female mink, the stretching can be carried out until a safe power value is reached, which safe power value can be determined to constitute a force which the skin can be immediately exposed to without run a considerable risk of tearing the skin, since the capabilities of the skin, due to its elastic properties, allow a greater force effect than the safe initial force or gradient to which the skin may be exposed.
In accordance with the above recognition, the method is characterized in that the method of stretching a skin on a tan comprises performing the following steps:
i) providing the skin and the tan, the tan having a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose, a rear end and a pair of forehead cavities, the tane defining a top end, a circumferential wall for facing the inwardly oriented leather side of the skin and a bottom positioned opposite the top end,
Ii) providing a tensioning apparatus comprising a holding device, a fixing device, a length measuring device and a controllable actuator having a speed control and a power detector; iii) holding the bottom end of the tan by means of the holding device; iv) positioning the skin on the tan by placing the nose end of the skin in contact with the top end and placing the rear end of the skin at the bottom end,
v) providing contact between the fixing device and the skin at the rear end thereof; vi) activating the controllable actuator at a specific speed controlled by the speed control to cause the holding device and the fixing device to move relative to each other and thereby stretching the skin during detection. , by means of the force detector, of the force applied to the skin by the controllable actuator; (vii) measuring the length of the skin by the length measuring device at the time of a particular force constituting an empirically determined safe force is detected, or a specific power gradient constituting an empirically determined safe power gradient is detected, and viii) recording said length and said specific power and / or specific power gradient as a first set of coherent data.
As mentioned above, the empirically determined safe force and the certain safe force gradient constitute quantities to which the skin of the species in question can be immediately exposed, and from the point of initially exposing the skin to the present specific force or force gradient, measurements must be made to determine the extent to which the fur can be further stretched. Accordingly, in accordance with the presently advantageous embodiment, the method of stretching a skin on a tan further comprises the additional steps of ix) continuing with step vi), measuring the incremental increase of the length of the skin as measured by the length measuring device,
(x) measuring the force value, using the force detector, applied to the skin to provide the incremental increase in the length of the skin; (xi) determination, based on the force value measured in step x) and the incremental increase in length measured in step ix); the force gradient needed to provide the incremental increase in the length of the skin, and
(Xii) recording the incremental increase in the length of the skin and / or the total length of the skin and the force measurement in step x) and / or the power gradient determined in step xi) as another set of coherent data.
The recording of the coherent data constituted by the increase in the length of the skin and / or the total length of the skin and the force applied or preferably the force gradient applied enables the determination of the safe maximum power gradient and consequently the maximum force which the skin can Accordingly, the process of the present invention further comprises:
continued repetition of steps ix) -xi) until a predetermined maximum allowable force or predetermined maximum allowable power gradient is reached, and termination of operation of the controllable actuator in step vi).
The registration of the coherent data which constitutes the first set and also the second set allows a self-learning procedure to be performed, since data recorded for several skins of a specific species makes it possible to improve the prediction when registering or recording data, thereby making reliable data for the determination of the safe force and power gradient and, and more importantly, the maximum permissible power or maximum permissible power gradient to which the skin may be subjected without causing deterioration or tearing of the skin. It should be further recognized that the improved breeding techniques of breeding species, especially the animal mink, increase the mink from which the mink fur is produced, the constant length of the fur from the mink, for which reason the learning operation of recording the coherent data described above provides a more reliable and up-todate prediction for the stretching of the skin of the species concerned. The prediction can immediately be obtained simply from the daily use of the extruder rather than from extensive and extremely costly experiments.
In the area of mink breeding and mink fur sales, an international standard has been established by the company Kopenhagen Fur A / S, which classifies the skins in length increments of 6 cm, for which reason the actual determination of the maximum limit to which the person concerned skins are stretched, can be better determined based on the classification of the skins, the stretch having to reach the maximum class corresponding to the non-exceeding the maximum limit of the lengths available. Accordingly, in accordance with the highly relevant commercial implementation of the method, the method of stretching a male or female mink skin is used to
DK 2020 00015 U1 the length to be classified in accordance with the international classification established by Kopenhagen Fur A / S, the method further comprising the step of comparing the lengths measured in step ix) with a specific class for said skin and on the basis of the predictions to determine whether further stretching of the skin can be safely performed to achieve an additional grade or no additional stretching should be used.
In accordance with another aspect of the present invention, it is contemplated that a further increase and safe stretch can be achieved by performing steps ix-xi in an intermittent operation, i.e. by performing the repeated stretching in steps and allowing the skin, after stretching to a specific limit, to rest until further stretching is performed.
Further, in accordance with alternative embodiments of the present invention, which embodiments are not currently considered to be particularly advantageous, the speed at which the actuator is driven may be reduced or alternatively increased.
The techniques of machining the fur side of the skin before or after stretching the skin using the stretching apparatus have been found to be very advantageous in obtaining a high quality skin after stretching and drying of the skin. However, it should be recognized that this skinworking technique can be combined with other techniques and, for example, combined with a winding apparatus as will be apparent from the following detailed description of advantageous embodiments of the apparatus of the present invention.
Brief description of the drawings
FIG. 1A is a perspective view of a fur.
FIG. 1B is a perspective view of the skin mounted on a tane.
FIG. 1C is a perspective view of the tan and a stretching apparatus.
FIG. 1G is a perspective view of the stretching arrangement when the skin is mounted.
FIG. 1E is a perspective view of the stretching arrangement as the stretching begins.
FIG. 1F is a perspective view of the stretching arrangement and of an adapter.
DK 2020 00015 U1
FIG. 2A is a perspective view of a mechanical setup of the tensioning apparatus.
FIG. 2B is a perspective view of the stretching arrangement and the tan.
FIG. 3A is a close-up view of the stretching device and the rack and pinion actuator.
FIG. 3B is a close-up view of the device when the rack and pinion actuator is adjusted.
FIG. 4 is a close-up view of the first fastener.
FIG. 5A is a close-up view of the first fastener when in the first position.
FIG. 5B is a close-up view of the first fastener when in the second position.
FIG. 5C is a close-up view of the retaining elements surrounding the tanning space.
FIG. 5D is a close-up view of the fastening of the skin.
FIG. 6A is a perspective view similar to the image of FIG. 1C, of the tan and a modified stretching apparatus.
FIG. 6B is a perspective view similar to the image of FIG. 1D of the tan and the modified stretching apparatus.
FIG. 6C is a view similar to the image of FIG. 1E of the tan and the modified stretching apparatus.
FIG. 6D is a perspective view of the tan and modified stretching apparatus in a first stage of fixing the skin by means of a set of wrap sheets in a winding operation.
FIG. 6E is a perspective view similar to the image of FIG. 6D of a final step in performing the winding operation.
FIG. 6F is a view similar to the images in FIG. 6D and 6E of the wrap film cutting step.
FIG. 6G is a view similar to the images in FIG. 6D, 6E and 6F with removal of the tan with the skin from the tensioning apparatus.
FIG. 7A, 7B, 7C and 7D are schematic views of alternative embodiments of winding techniques.
FIG. 8 is a schematic view illustrating, somewhat exaggeratedly, the backward bending of the tan with the skin, by stretching the skin.
FIG. 9A and 9B are vertical cross-sectional views illustrating the bending of the tan caused by the tendon ligament in the back of the skin.
FIG. 10A and 10B are images illustrating a first embodiment to compensate for the bending of the tan caused by the tendon ligament of the skin.
DK 2020 00015 U1
FIG. 11A and 11B are images illustrating another embodiment for compensating the tendon bending caused by the tendon ligament of the skin.
FIG. 12A and 12B are images illustrating a third embodiment to compensate for the bending of the tan caused by the tendon ligament of the skin.
FIG. Figures 13A and 13B are images illustrating the addition of a fur-side machining tool to the tensioning apparatus of the present invention.
FIG. 14A and 14B are images similar to those of FIG. 13A and 13B illustrating a variant of the tensioning apparatus of the present invention.
FIG. 15 is a graph illustrating the relationship between the force applied to a specific skin and the lengths provided by the applied force.
FIG. 16A-16E are schematic and sectional views of a tine and a skin disposed thereon, corresponding to the indication of the length of the skin indicated in FIG. 15th
Detailed description of the drawings
FIG. 1A shows a perspective view of a skin 10. The skin 10 shown here is from a mink, but it will anatomically correspond to other small fur animals, such as, for example, fox etc. The skin 10 has a tubular shape and comprises an inward orientating funnel. leather side 12, an outward-facing fur side 14, a nose 16 and a rear end 18. The rear end 18 defines a contour 20 along the circumference of the tubular skin 10. The contour 20 can be divided into a leg side contour to which the hind legs 22 of the skin are connected and a back side contour. , to which a tail portion 29 of the skin 10 is connected.
FIG. 1B shows a perspective view of the skin 10 when mounted on a tane. The casing 10 is mounted on the casing 26 such that a top end 28 of the casing 26 receives and fixes the nose end 16 of the casing 10 and the inwardly oriented leather side 12 of the casing 10 faces a circumferential wall 30 of the casing 26. The casing 26 extends in a longitudinal direction. direction from a bottom 32 to the top end 28. The bottom end 32 may be provided with a connecting element 34. The front members have been turned and placed between the skin 10 and the tine 26, thereby establishing a pair of front cavities 24 'in the skin 10 between the nose end 16 and the rear end 18 The web 26 may typically be provided with a fat-absorbing and preferably also water-absorbing paper (not shown) between the circumferential wall 30 and the inwardly oriented leather side 12.
FIG. 1C shows a perspective view of a stretching arrangement comprising a tuck 26 and a stretching apparatus 35. In use, the tuck 26 is provided with a skin 10 which
DK 2020 00015 U1 described above. The tensioning device 35 comprises a stretching device 36 for stretching an upper part of the skin defined between the nose end 16 and the foreskin cavities 24 '. The tensioning device 36 comprises a pair of cylindrical tensioning elements 38 which are arranged to be inserted into the front cavities 24 '.
The tensioning device 35 further comprises a holding device 40 arranged to hold the bottom end 32 of the tine 26 by fixing the connecting member 34 such that the tine 26 extends in a longitudinal direction in the tapping device 35. The tapping device 35 further comprises a first fastening mechanism 42 for securing the rear end 18 to the skin. along the contour 20, a second fastening mechanism 44 for securing the tail end 29 of the skin 10 and a third phase fastening mechanism 46 for securing the nose end 16 of the skin 10. The first fastening mechanism 42 is used to extend the lower portion of the skin 10 extending between the front cavities. 24 'and rear end 18 of the skin. At least the second fastening mechanism 44 and the third fastening mechanism 46 are considered selectable in the present setup.
FIG. 1D shows a perspective view of a stretching arrangement when the casing 10 is mounted. All the holding means 40, the tensioning device 36, first fastening mechanism 42, second fastening mechanism 44 and third fastening mechanism 46 are movable along the longitudinal direction defined by the tine 26 to adapt the tensioner 35 to different tines 26 and different skins 10. This is shown by the arrows. .
FIG. 1E shows a perspective view of a stretching arrangement as the stretching of the skin 10 starts. The skin 10 is thereby stretched by causing the tensioning device 36, first fastening mechanism 42 and second fastening mechanism 44 to move against the holding device 40 by suitable drive mechanisms, which will be further discussed hereinafter. The third fastening mechanism 46 may be caused to move in the opposite direction to relieve the taper 26 for pressure. The forces involved for each of the stretching devices 36, the fastening mechanism 42, the second fastening mechanism 44, and the third fastening mechanism 46 are typically in the range 100-200N. The forces can be applied at a stable size, or alternatively, a vibration or oscillation is induced in the skin, or further alternatively a combination of the above, where, for example, a period of oscillations is followed by a stable tensile force, to first loosen the fibers of the skin 10 and then stretching the fibers in the skin 10.
DK 2020 00015 U1
FIG. 1F shows a perspective view of a stretching arrangement and the possible provision of an adapter 48 which is used to enable tines 26 having different size connecting elements 34 to be used in the present stretching arrangement 35. The adapter 48 is thereby connected to the connecting element with different size 34 ', the adapter being provided with the properly sized connecting member 34 for use with the holding device 40 in the tensioning device 35.
FIG. 2A shows a perspective view of the mechanism setup for the tensioning device 35. The stretching device 35 comprises a compressed air source 50 and a display 52. The tensioning device 36 is pneumatically driven and can be moved by compressed air from the compressed air source 50. The holding device 40 and the first fastening device 42 are mechanically driven by spindle drives 54 'and 54. In this connection, it is understood that various combinations of drives can be used for the tensioning device 36, the holding device 40, the first fastening mechanism 42, the second fastening mechanism 44 and the third fastening mechanism 46.
Also provided is a user interface in the form of a photodetector 55 which is located in close proximity to the first fastener 42 to control the fixing and non-fastening positions of the first fastener 42 while still holding the user's hands in contact with the skin. . The photodetector 55 may be replaced by a corresponding proximity sensor or detector using other touch-free or touch technologies.
FIG. 2B shows a perspective view of the stretching arrangement, with the tine 26 being positioned in the correct position in the stretching apparatus 35.
FIG. 3A shows a close-up view of the stretching device 36. Stretching elements 38 are interconnected via a rack and pinion actuator 56. This allows the stretching elements 38 to move relative to one another to adapt to different sizes of skins 10 with different distances between the front legs.
FIG. 3B shows a close-up view of the stretching device 36. The stretching elements 38 are moved against each other by the rack and pinion actuator 56 in order to adapt to a smaller skin, ie. with a smaller distance between the forelegs.
DK 2020 00015 U1
FIG. 4 shows a close-up view of the first fastener 42. The first fastener 42 comprises a first gripping element 58 for securing the rear end of the skin along the back side contour, and a second gripping element 60 for securing the rear end of the skin along the leg side contour. The first gripping member 58 comprises a pair of first gripping members 62 and 62 'which are movable relative to a first holding member 64 for securing the rear end of the skin along the back side contour between the gripping members 62 and 62' and the holding member 64. The holding member 64 may be movable for to adapt to the tan. The second gripping member 60 comprises a pair of other gripping members 66 and 66 'which are movable relative to a pair of other holding members 68 and 68' for securing the rear end of the skin along the leg side contour between the gripping members 66 and 66 'and the holding members 68 and 68'. The aforementioned gripping or non-gripping operations are performed in a transverse direction relative to the longitudinal direction defined by the tan.
While the gripping or non-gripping operations of the first fastener 42 are controlled by the aforementioned photodetector, a few additional photodetectors 70 are provided in close proximity to the first fastener 42 which acts as a user interface for the drive mechanism for moving the fastener in the longitudinal direction of the tan.
FIG. 5A shows a close-up view of the first fastener 42 when in the first position which is a mounting position of the first gripping mechanism 58. The second gripping mechanism 60 is thereby folded into a non-use position. One of the set of second gripping member 66 and holding member 68 is folded to one side of the first gripping mechanism 58 while the second set of second gripping member 66 'and holding member 68' is folded to the opposite side of the first gripping mechanism 58. In the present illustrations, the tan removed. However, it should be understood that the tan is in the tan space in front of the first gripping mechanism 58 when the tensioning apparatus is in use.
FIG. 5B shows a close-up view of the first fastener 42 when the second gripping mechanism 60 has been folded into a position of use. The skin may already have been fixed between the first gripping members 62 and 62 'and the first holding member 64, or alternatively, as shown herein, this step is performed later. The second gripping mechanism 60 comprising the second gripping elements 66 and 66 'and the other holding elements 68 and 68' is thereby first moved in a transverse direction relative to the longitudinal direction of the
DK 2020 00015 U1 the tan and then rotated to be positioned opposite the first gripping mechanism 58 and facing the tan space.
FIG. 5C shows a close-up view of the first fastener 42 when the first holding member 64 and the second holding members 68 and 68 'have been moved against the tan space to enclose the tan.
FIG. 5D is a close-up view of the first fastener 42 when the first gripping members 62 and 62 'have been moved against the first holding member 64 to secure the rear end of the skin along the back side contour and the second gripping members 66 and 66' have been moved against the second retaining members 68 and 68 'for securing the rear end of the skin along the leg side contour.
Then, as explained above, the stretching procedure can be started. Start buttons 72 and 72 'may be provided on opposite sides of the first fastener 42 to initiate the stretching procedure. Buttons 72 and 72 'must be pressed simultaneously using both hands, thereby substantially reducing the risk of injury.
FIG. 6A shows a modified tensioning device 35 'which basically comprises the same components as described above with reference to FIG. 1C-1F, however, supplemented by a winding unit, which is described in more detail below. In the following description of the modified tensioning apparatus 35 ', components identical to previously described components are designated by the same reference numerals as mentioned above, while components which differ from previously described components, which, however, serve basically the same purpose as previously described. component, is denoted by the same reference number, but, however, adds a selection to identify the difference or the modified functionality. Components previously described will not be described in more detail below, while the modified components will be discussed in relation to their modified or modified functionality.
The modified tensioning apparatus 35 'shown in FIG. 6A comprises two supports 42 'on which a respective winding table part is mounted. In FIG. 6A, the two winding table portions 80 are spaced apart to allow the tine 26 with the skin 10 mounted thereon to be received in the tensioning apparatus 35 ', as indicated by a larger arrow at the central portion of FIG. 6A. Each of the wrap table parts 80 comprises a wrap foil supply 82,
DK 2020 00015 U1 from which a stretchable wrap foil 83 is dispensed as each of the wrap foils 83 is passed through foil guides 84. The free ends of the foils 83 are in FIG. 6A is fixed or driven by a respective foil grip member 86, the function of which will be apparent from the following description of the winding operation.
After the tan is received in the tensioning apparatus 35 'and mounted with the connecting element 34 on the tan 26 received in the holding device 40, the two winding table parts 80 are assembled into an annular element, each of the winding table parts 80 having at one end a pair of outwardly protruding pins and at the opposite end a pair of holes for receiving the outwardly protruding pins on the adjacent winding table portion for connecting the two winding table portions 80 to each other, as illustrated in FIG. 6B. In the position of the tensioning device 35 'shown in FIG. 6B, the stretching operation described above and with reference to FIG. 1D, and subsequently performing the same stretching operation as described above with reference to FIG. 1E in the process steps of the stretching operation, as illustrated in FIG. 6C. After the stretching of the skin 10 is completed, as described above, the winding operation is performed by rotating the winding table composed of the two winding table portions 80, as indicated in FIG. 6D by the two arrows shown adjacent to the winding table portions 80 of the modified extension apparatus 35 '.
As two symmetrically positioned winding components or elements are used in the winding operation, the winding process as such is performed more quickly than using a single winding unit comprising a single winding foil and at the same time, due to the symmetrical position of the winding elements comprising the two winding table portions 80, the physical impact in the winding operation of stretching the wrap foil 83 is increased since the symmetrical pulling of the two symmetrically positioned foils 83 exerts forces on the skin 10 and the tine 26 which are offset by their symmetrical application, which in turn reduces the need for the strength of the tine 26 and the strength of the fixation of the connecting member 34 on the tine 26 of the holding device 40.
After a preset number of windings of the wrap foil is applied to the outer surface of the skin 10, as illustrated in FIG. 6E, two foil cutters 88 are raised from the elements 86 as illustrated in FIG. 6E and thereafter, as illustrated in FIG. 6F, the cutters 88 are lowered again to grasp the foils 83, thereby allowing the winding table portions 80 to be returned as illustrated in FIG. 6F, thereby causing the foils to be cut and separated from the foil ends wrapped around the skin 10 on the tine 26. After the separation of the
In the films applied to the outer surface of the skin 10, the web 26 is removed from the modified stretching apparatus 35 ', as illustrated in FIG. 6G, with a ribbon 90 of wrap foils applied to the skin 10, which ribbon 90 serves to prevent the skin 10 from reforming or shrinking to its original length or to its original length.
In FIG. 7A, the symmetrical winding principle implemented in the modified stretching apparatus 35 'described above is illustrated, with the two foil portions 83 being applied to the skin on the web 26 from opposite sides and applying a symmetrical set of forces to the web 26 allowing increased stretching of the film in comparison with a single foil winding apparatus. The principle of compensating for the forces applied to the tan by stretching the wrap film can be implemented in several other ways, for example by using three or four sets of foils, as illustrated in FIG. 6, 7B and 7C. It will be appreciated that a further number of foil rollers may be used, provided that the angular distance between the foil rollers is the same between two arbitrary sets of adjacent foil rollers.
While the winding apparatus, as described above with reference to FIG. 6A-6G and the schematic illustrations in FIG. 7A-7C illustrate apparatus in which the wrap foil rollers are rotated about the centrally located and stationary web 26, the winding principle of applying symmetrically applied tensile forces to foils applied from two or more foil rollers can be implemented in an inverse setup, in which the foil rollers are held stationary. as illustrated in FIG. 7D while the centrally located web 26 'is caused to rotate by the winding process. As will be apparent to one of ordinary skill in the art, the two folio selection arrangements in the modified winding techniques illustrated in FIG. 7D is modified by the use of three, four or even more rollers, as is basically shown in FIG. 7B and 7C.
FIG. 8 illustrates somewhat excessive backward bending of the tan designated by reference numeral 14 ', by stretching the skin by the downward movement of the first fastener 42.
In FIG. 9A and 9B, the rearward bending of the tine 26 is illustrated in more detail and in FIG. 9A illustrates an enlarged view of the structure of the back of the skin which is in contact with the wall 30 of the tine 26, which beyond the leather side 12 and the fur side of the skin comprises the tendon ligament 92 which is stronger than the corresponding part of the skin located at the front of the skin. tan, the front of which does not include any corresponding high-strength tendon ligament. Accordingly, as illustrated in FIG. 9B, causes
The tendon 26 bends backward when the first fastener 42 is moved downward to stretch the skin, as there is no high strength tendon ligament in the front of the skin in comparison with the high strength back ligament ligament in the skin.
In order to prevent the backward bending of the tan which may cause an incorrect stretching of the skin, the stretching of the skin being carried out in order to bring the skin from one class to another in accordance with the Kopenhagen Fur classification system and in case the tan is bent backwards, as illustrated in FIG. 9B, the actual length of the skin may be slightly smaller than expected and foreseen by the stretching of the skin, which may then bring the skin to a lower grade than expected.
According to three different embodiments of the means for preventing the rearward bending of the tan, a holding and supporting arm 94 is provided in FIG. 10A, which retaining and supporting arm has a cup-shaped end portion 96 which serves to engage the nose end of the skin thereby preventing the rearward bending as illustrated in FIG. 9B, of the tan by stretching the skin. An alternative embodiment of the means for preventing backward bending of the tan is the combination of a retaining and support arm 92 and an annular end portion 98 which serves to circumferentially encircle the nose end of the skin 10 and thereby contact the outer fur side of the skin when the tan tend to bend backward, as illustrated in FIG. 9B. A third embodiment of the rear bend preventing means is constituted by a simple holding and supporting arm 100 shown in FIG. 12A and 12B, which arm simply contacts the neck of the skin when the stretch of the skin tends to cause the tan to bend backward, as illustrated in FIG. 9B.
In FIG. 13A and 13B are shown the tensioning apparatus of the present invention comprising a tool designated by the reference numeral 110 which serves to process the fur side of the skin 10. The processing tool 110 comprises a pair of support arms on which a set of rollers 112 are mounted, which rollers are driven by a motor 14 to cause the rollers to rotate in opposite directions, as shown in the enlarged cross-sectional view of FIG. 13B. As indicated by arrows, the fur processing tool 110 can be lowered from a top position adjacent to the nose end of the skin to a lower position at the rear of the skin to arrange the hair on the skin in a suitably organized orientation. The rollers 112 can be replaced with other relevant fur processing elements such as combs
DK 2020 00015 U1 or brushes which serve the general purpose of improving the quality of the skin in question.
In FIG. 14A and 14B are shown a modified embodiment of the tensioning apparatus according to the present invention shown in FIG. 13A and 13B. The embodiment shown in FIG. 14A and 14B differ substantially from the embodiment shown in FIG. 13A and 13B, in that the machining tool, designated by reference numeral 110 'to identify the change of machining tool, as compared to machining tool 110 described above, in that machining tool 110' is contained within an enclosure 111 which encloses rollers 112 and further includes a set of water dispensers 116 for dispensing or distributing water on the fur side of the skin 14 and further, a pair of contact pads are provided to contact the skin 14. The lower end of the enclosure 111 is provided with a pair of pressure pads, merely to contact the outside of the fur 14 and thereby providing a sealed enclosure containing the processing tool 110.
It is to be recognized that the functions of the machining tools 110 and 110 'shown in FIG. 13A, 13B and FIG. 14A, 14B basically functions as described in DK 176421 B1.
FIG. 15 is a schematic view illustrating empirical data provided by stretching a skin of mink, which is a male mink, recording the length of the skin and the force applied to the skin, the skin being stretched by the stretching arrangement described above with reference to to FIG. 1-5. The stretch is provided by moving the holding device 40 relative to the top end 28 of the tine 26, thereby performing a total stretch of the skin between the nose 16 of the skin 10 and the hind legs 22 or the tail end of the skin 10. Along the abscissa axis, the length of the skin is recorded and along the ordinate axis is the applied force recorded.
In FIG. 15, markings A, B, C, D and E are provided, which marks correspond to the illustrations in FIG. 16A-16E, described below, and the curve recorded as an incremental or incremental record of the relationship between the actual length of the skin and the force applied clearly shows the characteristics of a curve which initially has a low tangential gradient and at its end at point E, at which point the skin is torn, has an almost vertical tangential gradient.
DK 2020 00015 U1
In accordance with the empirical data shown in FIG. 15, a very advantageous feature characteristic of the present invention is derived, namely the feature of simply allowing the stretch to be performed initially without directing any careful attention to the stretching operation, including stretching the skin to a predetermined safe force value or safe power gradient value is reached, as indicated by
B. 1B, the curve illustrating the relationship between the incremental increase of the length of the skin and the force applied to the skin to increase the length of the skin starts to rise, thereby indicating that the stretching now becomes more critical as further stretching of the skin may cause damage to the skin, which may cause the skin to tear, indicated by E.
According to a further feature characteristic of the present invention, the associated values for the length of the skin during application of a tensile force and the tensile force are recorded simultaneously, the gradient increase determined as the increase from a previous corresponding set of data being recorded as the force gradient, considered as the force gradient. be a reliable and predictable measure indicating the shift from the safe stretching of the skin to the point B and the gradual dramatic increase in force to achieve a further incremental increase in the length of the skin. Accordingly, it is contemplated that the force gradient as such is an indication of the safe continuous operation of the stretching of the skin and obtaining a gradient that exceeds a specific value, such as the value in point D, constitutes a maximum predicted safe value for further stretching of the skin.
The values for stretching a male mink, the values L1, L2, L3 and L4 can be measurements of 750, 800, 850 and 900 mm, and an upper limit of L5 can typically be in the order of 950 mm, although the techniques used to feed the animals in the last 1015 years have dramatically increased the maximum length for male and female make-up from about 80 cm to 100 cm or even more.
Due to the increase in the overall length of the skins from mink due to the improved feeding techniques described above, the curve of FIG. 15 has changed and will change in the future, however, it is contemplated here that the general configuration or shape of the curve, as illustrated in FIG. 15 is universally applicable and further, in accordance with an advantageous feature of the present invention, the data recorded during stretching of a single skin may be recorded and stored and compared with data from the function of stretching of various animal skins and below.
DK 2020 00015 U1 establish what is well known in the computer engineering field an iterative learning process. As will be appreciated, the goal of determining the safe maximum force that can be applied to a skin, in accordance with the teachings of the present invention, is not determined by the length of the skin, but rather by the maximum force gradient and the force applied which values are consequently independent of the actual length of the skin exposed to the stretching operation as such.
In FIG. 16A-16E are schematic and vertical cross-sectional views of the tine 26 with the skin 14 disposed on the tan and also indicating the imaginary line 20 indicating the length of the skin generated during stretching of the skin as described above with reference to FIG. 1-5 and generating the corresponding lengths and force data shown in FIG. 15. To be more precise, FIG. 16A is the original length of the skin 14 in its unstretched state, i.e. prior to applying any force to the skin, while the skin rests initially on the tan and subsequently is subjected to a tensile force. According to the teachings of the present invention, no data recording is performed in the initial position of the skin on the tan as initial data, or to be more accurate, the starting length of the skin at the time of application of the skin on the tan has no bearing on the possibility of the skin being stretched. FIG. 16B illustrates the skin 14 stretched to the safe stretch value of FIG. 15 indicated by the dotted line illustrating the safe force applied and also the safe power gradient at point B. Upon further stretching of the skin, providing the recording of the data shown in FIG. 15, the skin is further stretched as indicated in FIG. 16C and 16D, wherein FIG. 16D illustrates the upper limit or the safe upper limit for stretching the skin, with further stretching of the skin exceeding the safe force gradient value determined in D causing the skin to tear, as illustrated in FIG. 16E.
In the process of stretching the skins from a mink, the classification in accordance with the international standard established by Kopenhagen Fur A / S must be taken into account and in this context the graph in FIG. 15 is used to predict that a prediction of a specific maximum class has been reached or a safe further stretch can bring the skins from the class currently being obtained to another class, recognizing that the incremental difference between the two classes is 6 cm and the stretching of the skin should therefore be carried out in order to reach the maximum possible class instead of reaching the maximum possible length, since stretching the skin beyond a class boundary without reaching the next class does not give
DK 2020 00015 U1 any financial value increase for the skin in question. As indicated above, the difference between L3 and L5 is 50 cm, corresponding to more than 6 classes, for which reason it is readily understood that the further elongation or stretching of the skin from B to D involves increasing the length of about 100 cm, corresponding to more than 16 classes.
Although this invention has been described above with reference to a specific and presently preferred embodiment of the invention together with schematically illustrated variants of the apparatus in accordance with this invention, the production may also be readily modified, as will be apparent to one skilled in the art. without departing from the scope of the present invention set forth in the attached utility model requirements.

权利要求:
Claims (10)
[1]
UTILITY MODEL REQUIREMENTS
An extension apparatus for stretching a skin on a tan, the skin having a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose and a rear end, and a tail end extending from the rear end of the skin. the skin, which defines a top end to receive and fix the nose end of the skin, a circular wall to face the inwardly oriented leather side of the skin, and a bottom positioned opposite the top end, which comprises:
a holding device for holding the bottom end of the tan, and a first fastening device comprising a gripping mechanism for securing the rear end of the skin, which further comprises:
a second fastener for securing a tail portion extending from the rear of the skin, said second fastener being movable along a longitudinal direction defined by the tine and in a direction against the retaining device and for stretching the skin.
[2]
A tensioning device according to claim 1, wherein the holding device is movable by means of a pneumatic drive, a hydraulic drive, an electric drive or a spindle drive.
[3]
A tensioning device according to any one of claims 1-2, wherein the holding device is movable relative to the top end of the tan, thereby making a total stretch of the skin between the nose of the skin and the tail end.
[4]
A tensioning device according to any one of claims 1-2, wherein the holding device is movable along a longitudinal direction defined by the tane.
[5]
A tensioning device according to any one of claims 1-4, wherein the holding device comprises a locking member for locking a connecting element at a bottom end of the tan, whereby the tan remains in a substantially fixed and upright position during stretching.
[6]
A tensioning device according to any one of the preceding claims, wherein the first fastening device comprises opposing gripping elements for gripping the skin between the inwardly oriented leather side and the outwardly oriented fur side.
DK 2020 00015 U1
[7]
A tensioning device according to any one of the preceding claims, wherein the second fastening device comprises opposing gripping elements for gripping the skin.
[8]
An extension device according to any one of the preceding claims, wherein the holding device,
In the tensioning device, the first fastener and / or the second fastener comprise one or more vibration actuators for inducing one or more oscillations on the skin.
[9]
The tensile apparatus of claim 7, wherein the vibration actuator operates at a frequency 10 of between 1 Hz and 100 Hz.
[10]
A tensioning device according to any one of the preceding claims, wherein the securing device for securing the tail part is suitable for stretching with a tensile force in the range 100-200N.

类似技术:

---

公开号 | 公开日 | 专利标题

---

DK202000015Y3|2020-03-26|Stretchers for stretching a skin on a tane

---

EP3176271A1|2017-06-07|Apparatuses and methods for stretching a pelt on a pelt board

---

US4747404A|1988-05-31|Foldable intraocular lens inserter

---

DK177976B2|2021-02-08|Apparatus and method for stretching a pelt on a pelt board

---

EP3181706A1|2017-06-21|Apparatuses and methods for stretching a pelt on a pelt board

---

ES2325585T3|2009-09-09|DEPILATION DEVICE.

---

WO2016033449A1|2016-03-03|Rotation responsive motorized hair curler

---

US20200131593A1|2020-04-30|Apparatuses and methods for stretching a pelt on a pelt board

---

EP3135776A1|2017-03-01|A method of stretching a pelt on a pelt board

---

EP3130683A1|2017-02-15|Apparatuses and methods for stretching a pelt on a pelt board

---

US10829829B2|2020-11-10|Apparatuses and methods for stretching a pelt on a pelt board

---

US20200307277A1|2020-10-01|Gripper mechanism for garment printer

---

KR101746120B1|2017-06-12|Apparatus for supporting blood sampling

---

EP3421617A1|2019-01-02|Apparatuses and methods for stretching a pelt on a pelt board

---

JP2007119212A|2007-05-17|Winding device for bandage or the like

---

DK177955B1|2015-02-02|Apparatus and method for stretching a pelt on a pelt board

---

DK176474B1|2008-04-21|Method and apparatus for removing a dry, extended skin from an expansion pitch.

---

JP2000217794A|2000-08-08|Sphygmanometer

---

US1657887A|1928-01-31|Ftjr-sckaping machine

---

JP2005341851A|2005-12-15|Device for treating welsh onion

---

JPH06182099A|1994-07-05|Sheet inserter

---

KR20190057651A|2019-05-29|Assistant Apparatus for Hair Design

---

US1207731A|1916-12-12|Buttoning-machine.

---

DK177545B1|2013-09-23|During Mouth Area

---

DK9600311U3|1998-01-09|Apparatus for tearing the skin of a fur animal's hind legs.

同族专利:

---

公开号 | 公开日

---

EP3274479A1|2018-01-31|

---

DK3274479T3|2019-10-28|

---

LT3274479T|2019-10-25|

---

CN107667181A|2018-02-06|

---

EP3553188A2|2019-10-16|

---

EP3274479B1|2019-08-14|

---

CN107667181B|2020-06-30|

---

EP3620540A2|2020-03-11|

---

US20180057900A1|2018-03-01|

---

US10745768B2|2020-08-18|

---

DK202000015Y3|2020-03-26|

---

WO2016150938A1|2016-09-29|

---

EP3553188A3|2020-02-19|

---

EP3620540A3|2020-06-17|

---

PL3274479T3|2020-03-31|

---

US20200354801A1|2020-11-12|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

US4381654A|1981-08-19|1983-05-03|Baldridge Lee M|Fur stretcher|

---

US4451322A|1982-04-23|1984-05-29|Richard A. Moerman|Apparatus for forming structural sheets from fibrous biological waste|

---

SE465466B|1986-05-16|1991-09-16|Ingvar Johansson|DEVICE FOR SCRAPING OF SKIN|

---

IT1198278B|1986-12-31|1988-12-21|Agostino Lagori|PROCEDURE AND DEVICE FOR TENSIONING SLEEVED LEATHER, IN PARTICULAR FOR THE PACKAGING OF FUR AND SIMILAR|

---

DK169525B1|1990-04-18|1994-11-21|Bent Faarkrog|Stretching machine for extending a mink pelt on a stretcher|

---

US6701756B2|2000-02-25|2004-03-09|Majgaard Invest Aps|Method and means for drying and fastening of stretched pelt on a peltingboard|

---

DK200001174A|2000-08-04|2002-02-05|Hedegaard Jens|Method and machine are for non-destructive stretching and drying skin prior to further processing in clothing manufacture|

---

DK174138B1|2000-11-28|2002-07-08|Jens Hedegaard|Method and machine for extending skins on tans.|

---

DK200001836A|2000-12-07|2002-06-08|Jens Hedegaard|Method for automation of stretching of skin involves electronic detection of skin size category after which cover bag with standard dimensions is cut to relevant length in relation to actual skin category|

---

ITVI20010220A1|2001-10-23|2003-04-23|Cartigliano Off Spa|METHOD AND LINE FOR CONTINUOUS ENLARGEMENT OF LEATHER AND OTHER SIMILAR PRODUCTS|

---

ITVI20020050A1|2002-03-20|2003-09-22|Cartigliano Off Spa|METHOD AND SYSTEM FOR CONTINUOUS WIDING AND GRADUAL DRYING OF INDUSTRIAL LEATHER AND SIMILAR PRODUCTS|

---

DK200301339A|2003-09-16|2005-03-17|Majgaard Invest As|Method and system for drying an elongate member on a play-off element / tan, and in this position retained fur from fur animals|

---

DK177012B1|2003-09-19|2010-12-06|Dansk Mink Papir As|Method and tanning machine for non-destructive extension and fastening of skins to a play element / tane|

---

DK176100B1|2004-02-24|2006-06-06|4M Globe Man Ltd|Method and apparatus for fixing a fur animal skin on a tane|

---

DK176446B1|2004-09-08|2008-03-03|Dansk Mink Papir As|Method and auxiliary device for holding a skin to a play element or a tane|

---

DK176746B1|2005-09-21|2009-06-02|Dansk Mink Papir As|A method for spreading the tail portion / tail skin on fur from fur animals, and a machine for practicing the method.|

---

DK176518B1|2006-01-24|2008-06-30|Dansk Mink Papir As|Device for full or partial emptying / filling of a dryer unit with upright expansion tanks.|

---

DK200600219A|2006-02-15|2007-08-16|Temora Imp Exp Ltd|Device for individual moving / transport in connection with the production of mink fur|

---

DK176683B1|2006-08-25|2009-02-16|Dansk Mink Papir As|Tubular holding bag|

---

DK176421B1|2006-08-26|2008-01-28|Dansk Mink Papir As|Method and machine for water brushing toothed mink skins|

---

WO2008101501A1|2007-02-21|2008-08-28|4M Globe Management Ltd|Apparatus for removal of dried furs from a pelting board|

---

DK178290B1|2010-06-16|2015-11-09|Minkpapir As|Long tine end bag|

---

DK177149B1|2011-03-22|2012-02-20|4M Globe Man Ltd|Apparatus and method for extending a skin before attaching to a tane|

---

PL2818563T3|2013-06-24|2017-04-28|Dansk Mink Papir A/S|A hair controller for mounting on a stretching machine for stretching a pelt on a pelt board|

---

DK177955B1|2013-07-10|2015-02-02|4M Globe Man Ltd|Apparatus and method for stretching a pelt on a pelt board|

---

DK177976B8|2013-07-10|2021-04-22|Jasopels As|Apparatus and method for stretching a pelt on a pelt board|

---

DK177784B1|2013-08-22|2014-06-30|4M Globe Man Ltd|Apparatus and method for stretching a pelt on a pelt board|

---

EP2913410A1|2014-02-28|2015-09-02|Pamutec Patents ApS|Pelting board system comprising a pelting board and a pelting board block|

---

EP3176271A1|2015-12-04|2017-06-07|Minkpapir A/S|Apparatuses and methods for stretching a pelt on a pelt board|

---

EP3415645A1|2017-06-16|2018-12-19|Hedensted Gruppen A/S|Method and machine for stretching a pelt on a pelt board|WO2015144774A1|2014-03-25|2015-10-01|Minkpapir A/S|A system for drying a pelt, a drying unit, a pelt board and an adaptor|

---

DK3322825T3|2015-07-13|2019-08-26|Minkpapir As|Tane and method of making a tane|

---

EP3214186A1|2016-03-02|2017-09-06|Minkpapir A/S|A method for stretching a pelt on a pelt board|

法律状态:
2020-02-27| UAT| Utility model published|Effective date: 20200224 |

---

2020-03-26| UME| Utility model registered|Effective date: 20200326 |

---

2020-11-04| UYA| Request for examination filed (utility model)|Effective date: 20201104 |

---

2021-04-20| UYT| Decision on examination: utility model terminated|Effective date: 20210420 |

优先权:

---

申请号 | 申请日 | 专利标题

---

EP15160914|2015-03-25|

---

EP15160910|2015-03-25|

---

EP15160917|2015-03-25|

---

EP15180350.9A|EP3130683A1|2015-08-10|2015-08-10|Apparatuses and methods for stretching a pelt on a pelt board|

---

EP15182654.2A|EP3135776A1|2015-08-27|2015-08-27|A method of stretching a pelt on a pelt board|

---

EP15197981.2A|EP3176271A1|2015-12-04|2015-12-04|Apparatuses and methods for stretching a pelt on a pelt board|

---

EP15200164.0A|EP3181706A1|2015-12-15|2015-12-15|Apparatuses and methods for stretching a pelt on a pelt board|

---