• 专利附录
  • 专利说明
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    • 专利摘要:
    The invention relates to a device for cleaning laundry comprising at least one washing chamber (1) with at least one closable opening (10) for inserting and / or removing the laundry, at least one row of nozzles inside the washing chamber, from which cleaning and / or or rinsing liquid is passed to the laundry and at least one receiving device (A) in the interior of the washing chamber (1), in the at least two Waschgutelemente (2), preferably a stack of Waschgutelementen (2), in spaced washing levels can be suspended. The receiving device (A) has a distance changing device (B), by means of which the distance between the at least two laundry items (2) is variable. The distance changing device (B) has a frame (4), on which at least two lifting devices (C) movable relative to the frame (4) and a pulling means (40) connected to the lifting devices (C) are provided, wherein the traction means (40) holding the lifting devices (C) hanging in the loading state and separating the laundry elements (2) in the washing position. The effective length of the traction means (40) is changed when changing from the loading state to the washing position and vice versa by a length change device.
    公开号:CH713704A2
    申请号:CH00468/18
    申请日:2018-04-12
    公开日:2018-10-15
    发明作者:Guggenberger Johannes
    申请人:Guggenberger Johannes；
    IPC主号:
    专利说明:

    Description: The invention relates to a device for cleaning laundry, comprising at least one washing chamber with at least one closable opening for inserting and / or removing the laundry, at least one row of nozzles inside the washing chamber and at least one receiving device inside the washing chamber , in which at least two items to be washed, preferably a stack of items to be washed, can be suspended in washing levels which are in particular vertically spaced apart. The receiving device has a distance changing device, by means of which the distance between the at least two items to be washed or washing levels can be changed.
    Such devices for cleaning laundry are known. In order to achieve particularly thorough washing results, some washing devices are equipped with a distance changing device. This enables several items to be washed, for example pallets, to be introduced into the washing device as a stack. During the washing process, this stack is then broken up in that the distance changing device increases the vertical distance between two adjacent items to be washed. This increased distance enables thorough cleaning even at the points that are concealed by the adjacent elements in the case of stacked laundry items. Known washing devices are designed such that the stack of laundry is introduced into the device at ground level. The change in the distance between the items to be washed is then carried out with the aid of a distance changing device, which increases the distance between the individual items to be washed for the washing process with the aid of a plurality of compression springs. A disadvantage of such washing devices is that the distance changing device has many individual parts. This requires a relatively long setup time. Furthermore, adjusting the distance between the items to be washed takes a lot of time due to the large number of individual parts. Finally, when using compression springs, there is a certain risk of injury to the machine operator due to springs expanding uncontrollably if a component breaks in the device.
    Based on this prior art, it is an object of the invention to propose a solution in which the change in the distance between two adjacent laundry items is simplified.
    This object of the invention is achieved by a device for cleaning laundry, with a loading condition and a washing position for the laundry comprising
    at least one washing chamber with at least one closable opening for inserting and / or removing the laundry,
    at least one row of nozzles in the interior of the washing chamber, from which cleaning and / or rinsing liquid is directed onto the items to be washed, in particular with pressure being blasted onto the items to be washed,
    - At least one receiving device in the interior of the washing chamber, into which at least two items to be washed, preferably a stack of items to be washed, can be suspended in washing levels that are, in particular, vertically spaced apart, the receiving device having a distance changing device by means of which the distance between the at least two items of washing item or washing levels can be changed , wherein the distance changing device has a frame on which at least two lifting devices which are movable relative to the frame and provide a driver for the distance changing device and a traction means connected to the lifting devices are provided, the traction means hanging the lifting devices together in the loading state and the traction means holding the laundry items isolated in the washing position and a length change device is provided, which the effective length of the traction device when changing from Besc Chick state changed to the washing position and vice versa. A device according to the invention comprises at least one washing chamber with a closable opening. This closable opening is preferably designed as a door, wherein this door can have one or more door leaves. The opening can of course also be designed differently, for example as a removable cover. It is favorable to make the interface between the washing chamber and the closable opening liquid-tight so that no cleaning liquid can escape during the washing process. The closable opening is provided for the introduction and removal of the laundry. Furthermore, a device according to the invention comprises at least one row of washing nozzles in the interior of the washing chamber, which serve to clean the laundry. From these cleaning nozzles, cleaning liquid is preferably sprayed onto the laundry under high pressure, as a result of which the laundry is cleaned. Furthermore, a device according to the invention comprises at least one receiving device in the interior of the washing chamber, into which at least two items to be washed, preferably a stack of items to be washed, can be suspended in washing levels which are in particular vertically spaced apart. This receiving device receives the individual elements of the items to be washed in the device during the washing process. The individual items to be washed are suspended or inserted in different washing levels when they are picked up by the receiving device. A receiving device is to be understood here as an assembly which is arranged in the interior of the device and has a plurality of subassemblies. One of these subassemblies is formed by a distance changing device, by means of which the distance between the at least two items to be washed or washing levels can be changed. This distance changing device serves to change the distance between two adjacent items to be washed, in particular to increase them for carrying out the washing process and to reduce them again after the washing process has ended. The distance changing device has a frame which is arranged at least for the most part within the washing chamber. At least on this rack
    CH 713 704 A2 two, but preferably several lifting devices arranged. These lifting devices can be moved relative to the frame, in particular in the vertical direction. The lifting devices take up the items to be washed; in the normal case, one item of items to be washed is picked up by one lifting device. However, it is also conceivable that a lifting device accommodates several items to be washed. The lifting devices can in turn be made up of several subassemblies. Furthermore, the distance changing device has a traction means which is connected at one end to the lifting devices. The traction device serves to change the distance between the individual lifting devices. The traction device holds the lifting devices together in the loading state, with all lifting devices hanging on the traction device in this state. In the washing position, the effective length of the train is increased by means of which the traction means no longer holds the lifting devices together, but rather separates them, so that there are distances between the individual lifting devices or items to be washed. Effective length is to be understood as the length of that part of the traction means which acts directly on the sliding elements and controls their distance from one another. The traction means has a total length that is longer than the effective length. The total length of the traction means extends from one end point of the traction means to the other, one of the end points being connected to at least one lifting device and the other being attached to or in the device at different locations. The total length of the traction device results from the effective length and a remaining length of the traction device, on which a length change device acts. The length change device presses, for example, on the remaining length of the traction device and thus increases this remaining length, as a result of which the effective length of the traction device is reduced. By reducing the effective length of the traction center, the lifting devices are pulled towards one another, thus reducing their distance from one another. In the opposite direction, the length change device can shorten the remaining length of the traction means and thereby increase the effective length of the traction means, so that the distance between the lifting devices also increases. The length change device comes into action above all when changing from the loading state to the washing position and vice versa in order to change the distances between the lifting devices and thus between the items to be washed attached to the lifting devices. Flexible, rope-like elements are initially considered as traction means. Chains have proven to be particularly favorable for the aggressive environment in a washing device. Of course, the traction means can also be formed by ropes or belts. As an alternative to a flexible traction means, a rigid traction means can also be provided, for example in the form of a rod, in particular a metal rod. The length change device is designed in accordance with the design of the traction means, when using a flexible traction means, for example as a working cylinder, which acts on the remaining length of the traction means. In the case of a rigid traction device, the length change device can also be designed as a driven gearwheel which engages in a corresponding counter-toothing on, for example, a rod-shaped traction device and changes its effective length by a rotary movement. The traction means can also be designed as a threaded spindle, the length change device then being designed as a driven nut or sleeve, which causes a linear movement of the traction means listed as a threaded spindle by rotation.
    In a preferred embodiment it is provided that the lifting devices are connected to one another by spacing elements and the spacing elements are designed to be displaceable relative to at least one lifting device, the lifting devices resting on one another in the loading state and in the washing position the spacing elements determining the vertical distance of the lifting devices from one another , In this embodiment, the individual lifting devices are connected to one another by spacing elements. In the loading state, the lifting devices rest on one another, so that the spacer elements are not required and are located within the lifting devices. The spacer elements are designed such that they are fixedly attached to a lifting device, whereas they are designed to be displaceable at least in a certain area in the adjacent lifting device. As a result, the spacer elements are fully inserted into the adjacent lifting device when loaded. When changing to the washing state, the distance between the lifting devices is increased. The displaceably mounted part of the spacer elements is pulled out of the one lifting device when the distance between two lifting devices is increased. An end stop is provided on the spacer elements at the end of the displaceably mounted side, which stops after the partial removal of the spacer element on the lifting device and from this stop a further displacement of the spacer element to the lifting device is no longer possible. In this state, the length of the spacer element defines the distance between two adjacent lifting devices.
    Cleverly. provided that the length of the spacer elements is adjustable. In this embodiment, the length of the spacer elements is adjustable, whereby the distance between two adjacent lifting devices is adjustable. This has the advantage that the device can be adapted to laundry items with different dimensions. If items to be washed are to be washed with a greater height, the length of the spacer elements can be increased, which then also increases the distance between the lifting devices. The same naturally applies to adapting to items with a lower height.
    In an advantageous embodiment it is provided that the spacer elements comprise a threaded bolt which is adjustably fastened to a first lifting device and the threaded bolt is movably guided in a bore of the vertically adjacent second lifting device, the threaded bolt being located on the one in the second lifting device Side has an end stop and this end stop is adjustable and fixable in its position on the threaded bolt. In this embodiment, the spacer elements are essentially formed by threaded bolts. Threaded bolts are also understood to mean screws with one head. It is more convenient
    CH 713 704 A2
    Threaded bolt firmly screwed to a first lifting device. This screw connection can be done using a nut or directly into a thread on the lifting device. The part facing away from this fastening is movably mounted in a bore or a sleeve in the adjacent second lifting device, so that a movement between the spacer element and the second lifting device is possible. Finally, the threaded bolt has an end stop at its end opposite the fixed end. This end stop comes into contact with the adjacent second lifting device as soon as the maximum desired distance between the lifting devices has been reached. The end stop is designed so that its position or position on the threaded bolt can be changed. A simple embodiment of such an end stop is a nut screwed onto the threaded bolt, which is fixed in position with another lock nut. Of course, the end stop can also be designed in a different way. The adjustment of the lifting devices to different heights of the items to be washed described in the previous paragraph can be carried out by changing the position of the end stop on the threaded bolt.
    In a further preferred embodiment it is provided that the traction means is connected by a coupling element with the lowest lifting device seen in the vertical direction. In this embodiment, the traction means is connected to the lowermost of the lifting devices by a coupling element. Such a coupling element can be designed, for example, as an L-shaped angle, one leg of which is attached to the lifting device and one end of the pull is attached to the other leg by means of. As a result of the fact that the train acts only directly on the lowest lifting device, a simple construction of the distance changing device is made possible. If the distance between the lifting devices is to be reduced starting from the washing position, the traction means only pulls on the lowest lifting device. As a result, the distance between the lowest and the second lowest lifting device is initially reduced until these two lifting devices rest on one another. From this point, a further pull on the traction mechanism causes the bottom and second bottom lifting devices to move towards each other in the direction of the third bottom lifting device until it rests on the next lifting device. This process continues until all the lifting devices rest on top of each other and the loading condition is reached. This simple structure is inexpensive to manufacture and very reliable in operation. Conversely, if the washing position is to be assumed based on the loading condition, the effective length of the train is gradually increased. First, the distance between the uppermost and the second uppermost lifting device begins to increase, the spacing elements with their displaceable part being pulled out of one of the lifting devices until the end stop of the spacing elements is reached. From this time on, the distance between these two lifting devices cannot be increased any further. With a further increase in the effective length of the train, the distance between the next two lifting devices now begins to increase as long as the end stop of the spacer elements is also reached here. As the effective length of the traction device is increased further, all distances are gradually increased from top to bottom until the washing position is reached. In the loading state, the lifting devices thus hang in an upper region of the device and move downward when the washing position is taken up. At first glance, this raised position of the lifting devices in the loading state is disadvantageous, since what is supposed to be more difficult to insert into the device. Surprisingly, it has been found that the position of the lifting devices further up is advantageous for the introduction of the laundry, since the laundry can be introduced more easily with a forklift. The view of the laundry located further up is much better than if the forklift driver has to position the laundry on the floor of the device. The better view of the items to be washed significantly reduces the risk of damage when being introduced into the device. Furthermore, if residual moisture remains in the laundry after washing, it can drip down, which leads to a further improvement in the washing result.
    Furthermore, it is provided in a favorable manner that the length change device comprises a deflection roller and a linear drive and the traction means is attached to its end facing away from the lifting devices on the device for cleaning laundry and between the point of the fixed attachment and the attachment to the Lifting devices is guided over the deflection roller, wherein a movable release of the linear drive acts on the area of the traction means, which is located between the location of the fixed attachment and the deflection roller, whereby the effective length of the traction means is changed. In this embodiment, one end of the traction means is fixed to one of the lifting devices, the other end of the traction means is fixed to the device. Furthermore, a deflection roller is provided, which is also fixed in place on the device. Starting from the end which is attached to the lifting device, the traction means is first guided over the deflection and then runs to the stationary one in the device. The length change device further comprises a linear drive with a releaser. The linear drive is fixedly attached to the device and the release mechanism of the linear drive acts on the area of the train which runs between the deflection roller and the point of the fixed attachment to the device. This part of the traction means is defined in this embodiment as the remaining length, the effective length of the traction means extends from the deflection roller to the point of attachment of the traction means to the lifting device. Due to the fact that the releaser acts on the remaining length of the traction means, this remaining amount is increased or decreased and, conversely, the effective length of the traction means is reduced or increased. The linear drive is preferably arranged in such a way that it is located outside the washing chamber and so there is no possibility that it will be damaged by liquid in the washing, rinsing or drying process. With appropriate sealing, the
    CH 713 704 A2
    Linear drive can of course also be arranged inside the chamber. In the loading condition, in which the distances between the lifting devices are minimal, the effective length of the traction means is also minimal, whereas the remaining length of the traction means is maximally large. In this case, the aligner of the linear drive is fully extended. To change to the washing position, the aligner of the linear drive is retracted, which shortens the remaining amount of the train and increases the effective length of the train. As described above, this increases the distances between the lifting devices. Of course, the longitudinal change device can also be designed differently.
    For example, a type of winch can be provided which winds up or unwinds the remaining length of the train by means of and thus reduces or increases the effective length of the traction means. Of course, further embodiments of a length change device which change the effective length of the traction means are also part of the invention.
    In a further preferred embodiment it is provided that the length change device comprises a deflection roller and a linear drive with a movable releaser and the traction means is fastened to the releaser at its end facing away from the lifting devices and the traction means between the point of attachment to the releaser and the attachment is guided on the lifting devices over the deflection roller and the effective length of the traction means is changed by the movement of the disengaging means. This embodiment is similar to the previously described embodiment. However, the traction means is attached directly to the release device of the linear drive at its end facing away from the lifting devices. With this attachment, the linear movement of the release arm has a direct effect on the effective length of the traction mechanism. When the release mechanism is extended, the remaining length of the traction means increases, the effective length of the traction means is reduced by the deflection via the deflection roller and the lifting devices are thus pulled upwards. Conversely, moving the releaser into the linear drive causes an increase in the effective length of the traction means and thus a lowering of the lifting devices.
    It is advantageously provided that the washing chamber encloses at least the distance changing device, the lifting devices and the traction means, the closable opening being designed as a door, which in the closed state is designed to be liquid-tight to the washing chamber. In this embodiment, an enclosing housing prevents washing liquid from escaping from the device. The washing chamber is advantageously designed such that it also encloses all elements of the distance changing device. Alternatively, the washing chamber can also be designed in such a way that it only encloses parts of the distance changing device and further parts of the distance changing device protrude from it.
    In a preferred embodiment it is provided that the washing chamber has a liquid-tight floor area, the vertical height of the floor area being defined by the height of a lintel and the door lintel having the same height in the loading state and in the washing position. In this embodiment, a liquid-tight area of the washing chamber is provided. This liquid-tight floor area is not interrupted by closable openings but is designed to be unchangeable. This has the advantage that the security against leakage of washing liquid is improved compared to a design with changeable openings. Because the lifting devices are arranged in the upper area of the device in the loading state, the height of the floor area and thus the height of the lintel can be made significantly larger than in the case of a device in which the laundry is introduced at ground level onto the floor of the device and fastened to the lifting devices becomes. In the case of a device of this type, there is therefore no need for a ground-level insertion opening for the laundry and the height of the lintel can be increased. This means that the floor area has a higher, absolutely liquid-tight volume in comparison to conventional washing systems, which ensures safety against the leakage of washing liquid in that the volume in the washing chamber holds the washing liquid used almost three times.
    It is possible to introduce a stack of items to be washed into the device by means of a stacker or by automatic loading from storage locations or the like. In the stacked state, these objects to be cleaned naturally lie on top of one another, that is to say they rest on one another. If the laundry is placed in the device, that is, in the washing chamber, it is then possible to increase the distance between the individual laundry items or the different washing levels by means of the distance changing device. After fixing the items to be washed, it is then possible to initiate the washing process as usual. In this case, for example, the items to be washed, which may be arranged on a rotating device, are set into a slow rotating movement and the appropriate nozzles are applied to them from the outside through the corresponding nozzles. This is done in a known manner. After washing, a drying process can then follow, which is either carried out as a spinning process with a rapid rotary movement or, for example, by blowing warm air into the washing chamber via a blower in order to clean the laundry. Of course, both measures can also be coupled according to the invention. The effect is of course significantly higher. After the first drying, the rinsing process can be carried out in the usual way, for example by rinsing the objects to be cleaned again with rinsing liquid. Corresponding cleaning agent residues are thus completely eliminated. After washing, the drying process then takes place again, either as a centrifugal and / or as a centrifugal and drying process using a fan.
    CH 713 704 A2 [0014] According to an advantageous further development, the invention is characterized in that at least two receiving elements are provided on or in the receiving device, the receiving elements preferably being fork-like or skewer-like. Similar to the forks of a forklift, at least two receiving or inserting elements can consequently be arranged one above the other. It is preferred, of course, that several such receiving or inserting elements are arranged one above the other in order to be able to clean significantly more laundry in one washing process. Of course, the invention is not limited to a fork-like or skewer-like design. Other types of supports are also possible. For example, it would also be possible to hang the elements to be washed on specific suspensions which are arranged in the respective washing level. Mounting brackets as the lowest fork carriage are also a way of being able to react to the multitude of tasks.
    The invention is also characterized in that in particular stackable pallets, baskets, containers open on one side or the like are provided as items to be washed. This includes in particular items to be washed, which are formed by containers which are closed over a surface and / or provided with openings or openings, which are, for example, of grid-like or sieve-like design on at least one side. Such items to be washed are frequently used in industry, in particular also in the food sector or in the cooling industry, and consequently have to be cleaned again after the intended use so that they can be used again. The materials are different, for example metal, plastic and / or composite materials or the like.
    The solution according to the invention makes it possible to wash a wide variety of items to be washed in one device and in particular in a single washing process at the same time. This means that the user of the device is no longer required to adhere to certain formats and / or profiles or dimensions. It is possible to arrange a wide variety of items to be washed in the individual wash levels.
    According to a further development, the device is also characterized in that the drive of the device is simultaneously connected to a safety switch of the closable opening of the washing chamber, so that the washing or cleaning process can only be initiated in the closed state of the washing chamber. This is also a safety measure to prevent accidents. For example, it cannot happen that the device goes into operation without the opening of the washing chamber being closed. Otherwise it could well happen that a worker standing in front of the device or handling it would be injured by the cleaning liquid. To safely avoid this, this additional fuse variant is provided with a fuse switch that is connected to the drive.
    According to a variant of the invention, the washing rack provided there is arranged on a carousel in the washing chamber, which can be rotated. This washing rack is advantageously designed so that its dimensions are adapted to the items to be washed or the dimensions of the items to be washed. The rotary movement is provided on the one hand as a relatively slow rotary movement for the washing and rinsing process, while a rapid rotary movement in the form of a centrifugal movement is provided for the drying process. These different rotary movements are usually achieved by appropriate motors or by the interposition of a gear with different gear stages.
    Accordingly, a drive is also provided according to the invention, which is able to set the carousel in a rotary movement with at least two different speeds, so that both a relatively slow washing rotary movement, but also a very fast spinning movement is made possible.
    Advantageously, a drying device is also provided in the device according to the invention, by means of which the laundry to be cleaned additionally dries after the washing process or after the spinning and / or rinsing process. It is of course advantageous if a blower is provided as the drying unit, which blows, for example, warm and dry air into the washing chamber. It is a further advantage if the drying device also comprises an element to be opened, which is provided on the ceiling or on the cover plate of the washing chamber, such as, for example, a closable and opening flap, through which steam in particular can escape and / or advantageously be suctioned off can.
    The carousel or the washing rack in the washing chamber is advantageously designed such that the items to be cleaned are clamped or fixed for the washing and / or spinning process.
    For this purpose, adjustable clamping elements are provided according to a variant of the invention, in order to clamp the laundry items. These adjustable tensioning elements are designed in such a way that they at least partially encompass the laundry or fix it in such a way that it cannot slip due to the rotational movement of the washing frame.
    The invention is characterized according to an advantageous development, which of course can also be used individually or together in connection with the previously disclosed features, characterized in that the receiving or insert elements are designed and spaced from one another or can be positioned such that they are attached existing inner pallet feet can be placed on the pallets for the laundry and the pallet feet serve for centering and / or lateral fixing and / or guiding. Of course, this is a considerable relief in that you do not have to attach any additional guiding and fixing means, because you can also use the receiving and inserting elements by placing them on the pallet feet
    CH 713 704 A2. Even when pushing it in, there is a relief because, of course, lateral guidance and subsequent fixation are also possible.
    A further development of the embodiment described above, which can of course also be used in connection with the main invention or one of the features disclosed thereafter, is characterized in that at least one lockable, preferably two, safety bracket is provided, which are attached to the wash stand or the Carousel are arranged. The safety brackets are angled in such a way that when they are closed they grip the outer pallet feet of a pallet and can thus clamp the entire pallet. It is of considerable advantage that the design of the securing bracket is such that both the wide pallets and the narrower pallets can be securely gripped and fixed. This means that the angled part of the safety bracket is designed in such a length that several masses of pallets can be covered with it. In the exemplary embodiment, an embodiment is shown with which it is possible to take two different dimensions of pallets, the invention being of course not restricted to such an embodiment. Rather, it is possible to correspondingly secure a greater gradation of pallet masses by the design of the securing bracket, which makes the device even more comfortable overall.
    This object of the invention is also achieved by a system for cleaning laundry comprising at least one device according to one of the preceding claims and further comprising a first storage element which is arranged along a conveying direction in front of the washing chamber of the device and a second storage element which is arranged along the conveying direction behind the washing chamber of the device, laundry items, in particular in the form of pallet stacks, being able to be applied to the first conveyor device and the second conveyor device, and further comprising a changing device which automatically removes laundry items from the first storage element and automatically introduces them into the washing chamber for cleaning , After the cleaning process, the changing device automatically removes the cleaned laundry from the washing chamber and applies it to the second storage element. A system according to the invention is used for the automatic cleaning of a large amount of laundry items. For this purpose, the system has at least one device for cleaning laundry according to one of the previously described embodiments. All items to be washed are cleaned in this washing device. Of course, several washing devices can also be provided. A first and a second storage element are provided adjacent to the washing device, the laundry to be cleaned being applied to the first storage element and the laundry already cleaned by the washing device being applied to the second storage element. Both storage elements have movable components which move along a conveying direction. The conveying direction of the first storage element is advantageously directed toward the washing device, the conveying direction of the second storage element being directed away from the washing device. Ideally, there is only a single conveying direction and the storage elements are arranged such that they extend along this common conveying direction. The items to be washed move with the movable elements of the storage elements along the conveying direction. At a central location, adjacent to the first storage element, to the second storage element and to the washing device or washing chamber, there is a changing device which removes the laundry from the first storage element and introduces them into the washing device. After the washing process has been carried out, the changing device then removes the items to be cleaned from the washing device and applies them to the second storage element. For this purpose, the changing device is provided with receptacle elements which can grip or otherwise hold the laundry items. The changing device works automatically. The changing device can be designed, for example, as a robot arm. Of course, other embodiments of the changing device are also part of the invention. The storage elements serve to have a certain supply of both dirty and cleaned laundry in the system. As already described, the system works largely automatically. However, laundry must be added and removed by an operator. The storage elements serve to form a type of buffer and thereby give the operator time to introduce or remove laundry. A system according to the invention makes it possible for only one person to take over the entire logistics for cleaning a larger number of items to be washed. While the operator is transporting laundry items that are cleaned on the second storage element, the washing device is automatically supplied with dirty laundry items from the first storage element. If the operator is then finished with the removal of the cleaned laundry, he can add dirty laundry to the first storage element, during which the cleaned laundry is buffered on the second storage element. A system according to the invention thus enables a very high throughput of items to be washed with very little personnel. In a preferred embodiment it is provided that the first storage element and the second storage element are designed as a conveyor belt and the washing process in the washing chamber starts automatically after the laundry has been introduced by the changing device. Conveyor belts are suitable storage elements because they are simple in construction and are available on the market in many different embodiments. Of course, the invention is not limited to an embodiment of the storage elements as conveyor belts. For example, carousel arrangements would alternatively be conceivable that rotate about a central point and thus move the items to be washed further. Ideally, the washing process in the washing device or washing chamber starts automatically as soon as the changing device has introduced a batch of laundry items into the washing chamber.
    In the drawings, the invention is shown schematically in particular in exemplary embodiments. It shows:
    CH 713 704 A2
    1: A sectional side view through an embodiment of a washing device according to the invention in the loading state,
    2: a sectional side view through an embodiment of a washing device according to the invention in the washing position,
    3 shows a plan view of an embodiment of a washing device according to the invention,
    Fig. 4: a special embodiment of a receiving element on one embodiment.
    5: a sectional side view through a further embodiment of a washing device according to the invention in the loading state,
    6: a sectional side view through a further embodiment of a washing device according to the invention in the washing position,
    7: a top view of an embodiment of a system according to the invention.
    In the figures, elements that are the same or correspond to one another are each identified by the same reference numerals and are therefore not described again unless they are expedient.
    Fig. 1 shows a sectional side view through an embodiment of a washing device according to the invention in the loading state. An embodiment of a device according to the invention is shown on the right-hand side of FIG. 1, which is in the loading state. In the loading state, the laundry, here a stack of laundry items 2 in the form of pallets, is introduced into the washing chamber 1. The receiving device A is provided in the washing chamber 1 for receiving the laundry. The receiving device A here comprises a frame 4 which extends essentially in the vertical direction and positions and carries the receiving device A in the washing chamber 1. Furthermore, the receiving device A comprises the distance changing device B. The distance changing device B includes all components which serve to change the distance between the items of laundry 2 introduced. Arranged one above the other in the vertical direction, the distance changing device B comprises a plurality of lifting devices C. In the embodiment shown, each lifting device C serves to receive one item 2 of laundry. Each lifting device C comprises at least one receiving element 3 as a subassembly. In the case shown, the receiving elements 3 are designed as forks, similar to those of a forklift truck, as a result of which the laundry items 2 in the form of pallets can be securely and easily attached to the receiving elements 3. However, the receiving elements 3 can also have a different shape if this is necessary for receiving the laundry items 2. The receiving elements 3 are thus interfaces of the lifting devices C to the laundry items 2, which can be adapted depending on the application. The lifting devices C each further comprise a pressure plate 5. The receiving element 3 is fastened to the pressure plate 5. The pressure plate 5 also serves to mount the lifting device C displaceably and movably on the frame 4. In the form shown, the pressure plate 5 has for this purpose at least two rollers or rollers which roll on the vertically extending frame 4 and thus enable displacement in the vertical direction. It is of course also possible to realize a movable mounting between the pressure plate 5 and the frame 4 using a different type of bearing, for example using a plain bearing or the like. In the loading state shown, the distance between the adjacent lifting devices C is minimal, the pressure plates 5 of the adjacent lifting devices C lie directly on one another. The distance changing device B further comprises a traction means 40, which in the embodiment shown is designed as a metal chain. A metal chain has the advantage of being permanently resistant to the damp and sometimes chemically aggressive environment in the washing chamber, which also has regularly high washing temperatures. The traction means 40 is fastened to the lowermost lifting device C by means of a coupling element 42. The coupling element 42 is here a metal angle which engages under the pressure plate 5 of the lowest lifting device C. The connection between the pressure plate 5 and the coupling elements 42 can take place via its positive connection. Furthermore, however, it is also possible to connect the coupling element 42 and the lifting device C in a cohesive manner, for example by welding them together. The length change device 41 is attached near the upper end of the washing chamber 1. The length change device comprises the deflection roller 44. The traction means 40 initially runs vertically upward from the coupling element 42 and over the deflection roller 44. To the right of the deflection roller 44 is attached the linear drive 45, which also belongs to the length change device 41. One end of the traction means 40 is fixedly attached to the attachment 49 in the washing chamber in the vicinity of the linear drive 45. The attachment 49 can be designed, for example, as a screw connection with which the end of the traction means 40 is clamped in place. The part of the traction device 40 that extends between the fastening 49 and the deflection roller 44 is defined as the remaining length of the traction device 40. The part of the traction device 40 which extends in the vertical direction between the deflection roller 44 and the coupling element 42 is referred to as the effective length of the traction device 40. In the form shown, the releaser 46 of the linear drive 45 presses on the remaining length of the traction means 40. In the loading state shown, the releaser 46 is fully extended, as a result of which the remaining length of the traction means 40 pressed down by the releaser is maximally long and thus the effective length of the traction means 40 is minimal is short. As a result, the lifting devices C rest on one another without a gap. When the release device 46 is retracted, the remaining length of the traction means 40 is reduced and it follows
    CH 713 704 A2 and after a change in the state of the washing position shown in Fig. 2. On the left side of the washing chamber 1, a closable opening 10 can be seen, which is formed by a door, not shown. In the lower area of the washing chamber 1 there is a liquid-tight floor area 101. This floor area 101 extends in the vertical direction to the end of the height of the lintel 102. The floor area 101 is thus formed by a trough, the upper edge of which is the lintel 102. It can be seen that the edge of the lintel 102 is clearly above the level of the surrounding floor. This ensures that no water can run out of the washing chamber 1. outwards. In the prior art, the lintel 102 had to be made significantly lower, since the laundry items 2 could only be introduced directly into the device and attached to it at ground level. Increasing the lintel 102 thus has a clear advantage in terms of leakproofness. The items to be washed 2 are introduced into the washing chamber 1 in a stack form by the forklift 50. The forklift picks up the stack on its fork 51 and hangs all items to be washed 2 simultaneously onto the lifting devices C or their receiving elements 3. As can be clearly seen in FIG. 1, the fork 51 of the forklift 50 is in an elevated position relative to the floor level when the items to be washed are introduced. This gives the forklift driver a much better view of the items to be washed than if the items to be washed were just above the floor level when they were inserted. Thus, the entire design of the distance changing device B, in which the lifting devices C are in the upper state when loaded, surprisingly brings clear advantages over the prior art when introducing the laundry. In the previous description of FIG. 1, only the lifting devices C, frame 4, etc. that are actually visible in the figure have been written. It is of course possible for several of these assemblies to be arranged one behind the other in the drawing plane and for each to work individually or in parallel with the elements shown. In practice, two corresponding lifting devices C will usually be provided side by side in the horizontal direction. However, the invention is not limited to such a double execution of the elements.
    Fig. 2 shows a sectional side view through an embodiment of a washing device according to the invention in the washing position. FIG. 2 corresponds to FIG. 1 in the illustration. However, FIG. 2 shows the washing position in which the items to be washed 2 have already been introduced into the device. The closable opening 10 is closed and is therefore no longer shown. The lifting devices C and thus the items to be washed 2 are now arranged at a distance from one another in order to enable cleaning agents to reach and clean all surfaces of the items to be washed 2 during the washing process. The release 46 of the linear drive 45 can no longer be seen, since it is completely retracted. The remaining amount of the traction device 40 is minimal in the case shown, so that the traction device 40 runs directly between the fastening 49 and the deflection roller 44. In contrast, the effective length of the traction means 40 is at a maximum, so that the end of the traction means 40 fastened to the coupling element 42 is located close to the bottom of the washing chamber 1. A spacer 43 can be seen between the lifting devices C, which connects adjacent lifting devices C in the region of the pressure plates 5 in the vertical direction. By providing a spacer 43 between the individual lifting devices C, a vertical chaining of all lifting devices C is achieved. When the effective length of the train is lengthened by means of 40, all the displaceably mounted spacer elements 43 are gradually extended. The spacer elements 43 have an end stop, from the reaching of which no further displacement of the spacer elements 43 with respect to the lifting devices C is possible. If this end stop is reached, the maximum distance between the lifting devices C is also reached. The spacer elements 43 can be designed as bolts or cylinders which are fixedly attached to a lifting device C and are movably mounted in the adjacent lifting device up to the end stop. When changing from the loading state to the washing position, each distance between the individual lifting devices C is gradually increased until the end stop of the spacing elements 43 is reached. The end result is shown in Fig. 2, all lifting devices are now objectionable to each other. When changing back to the loading state, the effective length of the traction means 40 is shortened again and the spacer elements 43 gradually move back into the lifting devices C until the lifting devices C all rest on one another again.
    Fig. 3 shows a device according to the invention in a schematic plan view. It is clear here that, for example, a carousel 11 is provided, on which a washing rack (not specified in more detail) is arranged. As already mentioned several times, this carousel 11 can be rotated. In order to fix the washing rack on the carousel or the items to be washed 2 there, it is provided according to the invention that tensioning elements 12/1 to 12/6 are provided, which, as indicated by the double arrow, point toward or from the items to be washed can be moved away from this. Reference number 10 denotes the opening of the washing chamber 1, through which the items to be washed are introduced into the chamber and from which, of course, they can of course be removed again after the washing process.
    4 shows a special embodiment for a receiving element 3 according to the invention. The receiving element 3 is designed like a spit, namely on the side facing away from the frame 4. A pallet 70 is only schematically indicated here in two different sizes. For example, as a pallet in the dimensions 1000 x 1200 mm, which is shown by the outer dashed lines and by the inner cross-hatched representation in the dimensions 800 x 1200 mm. Inner pallet feet 16 are initially provided on the pallet 70 itself, which serve to enable the pallet to be positioned and fixed exactly centrally between the two receiving or inserting elements 3. As can be seen, the receiving elements 3 are designed as forks or fork-like. The horizontal distance from one another can be adjusted so that the inner pallet feet 16 for insertion
    CH 713 704 A2 and in particular for fixing in the horizontal plane can also be used. Furthermore, it can be seen that securing brackets 17 are provided on the carousel 11 or on the washing frame of the device. These securing brackets 17 are angled in such a way that they grip the outer pallet feet 18 when they are closed and thereby clamp the pallet 70 as a whole. It can also be seen here that the design of the securing bracket 17 is such that both the wide pallets 70 and the narrower pallets 70 can be securely gripped and fixed. This means that the angled part of the securing bracket 17 is of such a length that both masses can be safely covered with it.
    The safety bracket 17 are secured via toggle levers, not shown, so that opening is excluded. In this way it is achieved that the securing brackets 17 are closed only on the left and right on the side facing away from the frame 4 and the pallet 70 is thus securely fixed. As a result, falling out or falling down, but also slipping and shifting of the pallet 70, or of the items to be washed, is no longer possible here. The pointed configuration of the forks is also advantageous because, for this reason, the pallets 70 can be securely fixed in the entry shaft of the pallet 70. This means that the pallets, which were moved in off-center, for example, can be safely moved into the center by this device and fixed or centered there from both sides.
    5 shows a sectional side view through a further embodiment of a washing device according to the invention in the loading state. The embodiment shown in FIGS. 5 and 6 is very similar to the embodiment shown in FIGS. 1 and 2. Therefore, unless otherwise stated, what has been described for these figures in the previous paragraphs applies. The deflection roller 44 is dimensioned larger in the embodiment shown in FIG. 5 and arranged such that the traction means 40 with its effective length now runs on the side of the frame 4 facing the laundry. The pulling element 40 is also connected here to a coupling element 42 with the lowest lifting device C. Starting from this point on the lowest lifting device C, the traction means 40 initially runs vertically upwards and is then guided over the deflection roller 44. The effective length of the traction means 40 extends from the coupling element 42 to the deflection roller 44. In this embodiment, the end of the traction means 40 facing away from the coupling element 42 is fastened directly to the end of the release mechanism 46 of the linear drive 45. When the laundry is to be removed, the release mechanism 46 is extended and takes one end of the traction means 40 with it during this movement. As a result, the traction means 40 is moved over the deflection roller 44 and its effective length is shortened. The lifting devices C with the items to be washed are moved upwards, so that the loading condition is finally reached. The embodiment shown in FIG. 5 has a simpler structure than the embodiment shown in FIG. 1. For this purpose, a stronger linear drive is required in FIG. 5, since there is a lower transmission ratio than in FIG. 1, which is due to the lack of a second attachment point of the traction means 40. In the embodiment shown in FIG. 5, compared to the embodiment shown in FIG. 1, a linear drive 45 is required, the release mechanism 46 of which can travel twice the distance. In practice, release lengths of up to 50 cm have proven to be unproblematic. In the embodiment shown in FIG. 5, the deflection roller 44 is designed such that the effective length of the traction means 40 runs on the side of the frame 4 facing the laundry. As a result, the traction means 40 mechanically relieves the bearings of the lifting devices C on the frame 4.
    6 shows a sectional side view through a further embodiment of a washing device according to the invention in the washing position. FIG. 6 shows the embodiment from FIG. 5, in which the releaser 46 is almost completely moved into the linear drive 45 and the device thus assumes the washing position, in which the items to be washed are separated. The effective length of the traction device 40 is maximum in this washing position.
    7 shows a top view of an embodiment of a system according to the invention. In the middle of the illustration, the outline of the washing chamber 1 can be seen from above. The closable opening 10, which is designed here as a double door, is open, so that laundry can be introduced into or removed from the washing chamber 1. 7, several items to be washed are stacked one on top of the other as pallet stacks 22. These pallet stacks 22 look like a single pallet in plan view. It can be clearly seen that there is a pallet stack 22 in the washing chamber 1. Above and below the washing chamber 1, the first storage element 25 and the second storage element 26 are arranged offset in time. The storage elements themselves cannot be seen, however, the pallet stacks 22 arranged on these storage elements. The storage elements 25, 26 are designed as conveyor belts which move the pallet stacks 22 in the conveying direction 23. The pallet stacks 22 arranged on the first storage element 25 are moved towards the washing chamber 1 along the conveying direction 23. The already cleaned pallet stacks 22 are moved away from the washing chamber 1 by the second storage element 26 along the conveying direction 23. The changing device 27 is arranged such that it can reach the first storage element 25, the washing chamber 1 and the second storage element 26. After a washing process has ended, the changing device automatically opens the washing chamber 1, removes the cleaned pallet stack 22 and places it on the second storage element 26. The changing device then removes a soiled pallet stack 22 from the lower end of the first storage element 25 and automatically introduces it into the washing chamber 1 , After the washing chamber 1 has been closed, the washing process is started automatically. At the lower end of the second storage element 26, a forklift 50 can be seen, which is about to remove a pallet stack 22 from the second storage element 26. In the same way, the first storage element can be loaded with dirty pallet stacks 22 by a forklift. The fact that the two conveyor belts (first storage element 25 and second
    CH 713 704 A2
    Only move storage element 26) slowly and as required in conveyor direction 23, the two storage elements 25, 26 act as buffers for pallet stacks 22, so that the driver of the forklift 50 has enough time to change the pallet stack 22, during which the system automatically continues to operate. Instead of the pallet stack 22, a system according to the invention can of course also process other types of laundry, for example racks on which the laundry elements are suspended.
    The claims now filed with the application and later are without prejudice for achieving further protection.
    Should it appear here on closer examination, in particular also of the relevant prior art, that one or the other feature is favorable for the aim of the invention, but is not crucially important, a formulation is of course already being sought which no longer has such a feature, in particular in the main claim. Such a sub-combination is also covered by the disclosure of this application.
    It should also be noted that the configurations and variants of the invention described in the various embodiments and shown in the figures can be combined with one another as desired. Individual or multiple features can be interchanged with one another. These combinations of features are also disclosed. The back-references cited in the dependent claims indicate the further development of the subject matter of the main claim by the features of the respective sub-claim. However, these are not to be understood as a waiver of the achievement of an independent, objective protection for the features of the related subclaims.
    Features that were only disclosed in the description or individual features from claims that comprise a plurality of features can be adopted at any time as essential to the invention to differentiate from the prior art in the independent claim (s), namely even if such characteristics were mentioned in connection with other characteristics or achieve particularly favorable results in connection with other characteristics.
    权利要求:
    Claims (18)
    [1]
    claims
    1. Device for cleaning laundry, with a loading condition and a washing position for the laundry comprising
    - at least one washing chamber (1) with at least one closable opening (10) for inserting and / or removing the laundry,
    at least one row of nozzles in the interior of the washing chamber (1), from which cleaning and / or rinsing liquid is directed onto the items to be washed, in particular is blasted with pressure onto the items to be washed,
    - At least one receiving device (A) in the interior of the washing chamber (1), into which at least two items (2), preferably a stack of items (2), can be suspended in washing levels that are, in particular, vertically spaced apart, the receiving device (A) being a distance changing device (B), by means of which the distance between the at least two items to be washed (2) or washing levels can be changed, characterized in that the distance changing device (B) has a frame (4) on which at least two lifting devices can be moved relative to the frame (4) (C) and a traction means (40) connected to the lifting devices (C) are provided, the traction means (40) holding the lifting devices (C) hanging together in the loading state and the traction means (40) separating the items to be washed (2) in the washing position and a length change device (41) is provided which determines the effective length of the traction means (40) changed when changing from loading status to washing position and vice versa.
    [2]
    2. Device for cleaning laundry according to claim 1, characterized in that the lifting devices (C) are connected to one another by spacing elements (43) and the spacing elements (43) are designed to be displaceable relative to at least one lifting device (C), the lifting devices ( C) lie on one another in the loading state and in the washing position the spacer elements (43) determine the vertical distance of the lifting devices (C) from one another.
    [3]
    3. Device for cleaning laundry according to one of the preceding claims, characterized in that the length of the spacer elements (43) is made adjustable.
    [4]
    4. Device for cleaning laundry according to one of the preceding claims, characterized in that the spacer elements (43) comprise a threaded bolt which is adjustably attached to a first lifting device (C) and the threaded bolt is movable in a bore of the vertically adjacent second lifting device ( C) is guided, the threaded bolt having an end stop on the side located in the second lifting device (C) and this end stop being adjustable and fixable in its position on the threaded bolt.
    [5]
    5. Device for cleaning laundry according to one of the preceding claims, characterized in that the traction means (40) is connected by a coupling element (42) with the lowest lifting device (C) seen in the vertical direction.
    CH 713 704 A2
    [6]
    6. Device for cleaning laundry according to one of the preceding claims, characterized in that the length change device (41) comprises a deflection roller (44) and a linear drive (45) and the traction means (40) fixed to its end facing away from the lifting devices (C) the device for cleaning laundry is attached and the traction means (40) is guided between the point of the fixed attachment and the attachment to the lifting devices (C) via the deflection roller (44), a movable release (46) of the linear drive (45) acts on the area of the traction means (40), which is located between the location of the fixed attachment and the deflection roller (44), whereby the effective length of the traction means (40) is changed.
    [7]
    7. Device for cleaning laundry according to one of claims 1 to 5, characterized in that the length change device (41) comprises a deflecting roller (44) and a linear drive (45) with a movable releaser (46) and the traction means (40) its end facing away from the lifting devices (C) is fastened to the releaser (46) and the traction means (40) is guided between the point of attachment to the releaser (46) and the attachment to the lifting devices (C) via the deflection roller (44) and the effective length of the traction means (40) is changed by the movement of the releaser (46).
    [8]
    8. Device for cleaning laundry according to one of the preceding claims, characterized in that the washing chamber (1) at least the distance changing device (B), the lifting devices (C) and the traction means (40), wherein the closable opening (10) as Door is formed, which is liquid-tight to the washing chamber (1) in the closed state.
    [9]
    9. Device for cleaning laundry according to one of the preceding claims, characterized in that the washing chamber (1) has a liquid-tight floor area (101), the vertical height of the floor area (101) being defined by the height of a lintel (102) and the lintel (102) has the same height when loaded and in the washing position.
    [10]
    10. Device for cleaning laundry according to one of the preceding claims, characterized in that at least two receiving elements (3) are provided on or in the receiving device (A), the receiving elements (3) preferably being fork-like or skewer-like and / or as Items to be washed (2), in particular stackable pallets (70), baskets, containers open on one side or the like, are provided, in particular the items to be washed (2) are formed by containers which are closed over the surface and / or provided with openings or openings, for example at least on one side in a grid or sieve-like manner are trained.
    [11]
    11. Device according to one of the preceding claims, characterized in that a drive is provided and the drive of the device is simultaneously connected to a safety switch of the closable opening (10) of the washing chamber (1), so that only in the closed state of the washing chamber (1) the washing or cleaning process can be initiated and / or in the washing chamber (1) the washing rack is arranged on a carousel (11) which can be set into a rotary movement.
    [12]
    12. Device according to one of the preceding claims, characterized in that a drive is present which is able to set the carousel (11) into a rotary movement with at least two different speeds, so that both a washing rotary movement with a relatively slow rotary movement, but also a spinning movement , in particular a very fast spinning, is made possible and / or a drying device is provided, by means of which the laundry to be cleaned. (2) additionally dries after the washing process or after the spinning process, in particular a blower is provided as a drying device, which blows warm and dry air into the washing chamber (1), for example.
    [13]
    13. Device according to one of the preceding claims, characterized in that preferably a closable and openable flap (9) is provided on the ceiling or on the cover plate of the washing chamber (1), through which steam can escape and / or be suctioned off.
    [14]
    14. Device according to one of the preceding claims, characterized in that the carousel (11) is designed such that the items to be cleaned (2) are clamped or fixed for the washing and / or spinning process and / or adjustable clamping elements (12 / 1, 12/2, 12/3, 12/4, 12/5, 12/6) are provided in order to clamp the items to be washed (2), in particular support elements (41) are provided on the frame (4) so that they can be moved Wear receiving elements (3), the individual supporting elements (41) being connected by spacer bolts (15), tubes, cylinders, screws or the like, which limit the distance between two receiving elements (3).
    [15]
    15. Device according to one of the preceding claims, characterized in that the receiving elements (3) are designed and spaced from one another or can be positioned such that they can be placed on the pallets (70) for the inner pallet feet (16) present for the items to be washed and the pallet feet for the centering and / or the lateral fixation and / or the guidance.
    [16]
    16. Device according to one of the preceding claims, characterized in that at least one lockable, preferably two safety clips (17) are provided, which is arranged on the washing rack or carousel (11), and which, in cooperation with, on the pallets (70) provided
    CH 713 704 A2 outer pallet feet (18) defines the pallet (70) for the washing process in the washing level or that the bottom pallet (70) is fixed on two sides by the mounting bracket.
    [17]
    17. System for cleaning laundry, comprising at least one device according to one of the preceding claims and further comprising a first storage element (25) which is arranged along a conveying direction (23) in front of the washing chamber (1) of the device and a second storage element (26) which is arranged along the conveying direction (23) behind the washing chamber (1) of the device, laundry items (2), in particular in the form of pallet stacks (22), being attachable to the first conveying device (25) and the second conveying device (26) and further comprising a changing device (27) which automatically removes wash items (2) from the first storage element (25) and automatically introduces them into the washing chamber (1) for cleaning, the changing device after the cleaning process has ended the cleaned items (2) from the washing chamber ( 1) automatically removes and applies to the second storage element (26).
    [18]
    18. System according to claim 17, characterized in that the first storage element (25) and the second storage element (26) are designed as a conveyor belt and the washing process in the washing chamber (1) starts automatically after the laundry has been introduced by the changing device (27) ,
    CH 713 704 A2
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    同族专利:
    公开号 | 公开日
    DE102018108746B4|2020-04-23|
    DE102018108746A1|2018-10-18|
    DE202017102274U1|2018-07-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3522872A|1968-01-15|1970-08-04|Blakeslee & Co G S|Tray unloading mechanism and conveyor stop means for dishwashing machine|
    DE19810759A1|1998-03-12|1999-09-16|Carola Poetzscher Gmbh & Co Kg|Trolley for multilevel baking oven, has integral loading system|
    DE202013100471U1|2012-11-30|2013-03-14|Guggenberger Reinigungstechnik E.K.|Device for cleaning laundry|DE102018125342B3|2018-10-12|2020-01-23|Johannes Guggenberger|Device for cleaning pallet-like laundry|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202017102274.9U|DE202017102274U1|2017-04-13|2017-04-13|Device for cleaning laundry with cable pull|
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