• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a winding mandrel, a towel dispenser with such a winding mandrel and a method for using the towel dispenser. The winding mandrel (6) has a gear (17) operatively connected to an electric motor, in which a clamping rod (19) is mounted non-rotatably. The clamping rod (19) lies in a groove (22) of a roller body (20), which is rotatable relative to the gear (17). In a loading position of the roller body, in which the clamping bar (19) is spaced from the side walls of the groove (22), an end portion of a towel rail can be threaded under the clamping bar (19). By rotating the gear (17) in a direction of winding the roller body (20) relative to the clamping bar (19) is transferred to a holding position in which a portion of the end portion between a stop surface (24) on the roller body (20) and an opposite clamping surface (25 ) is clamped on the clamping bar (19) and is reliably held during winding. If the towel rail wound as a use roll on the roll body (20), it is removed by loosening the gear (17) against the Aufwickelsinn the clamping released at the end part and the winding mandrel (6) to the side of the gear (17) pulled out of the use of role ,
    公开号:CH712229A1
    申请号:CH00296/16
    申请日:2016-03-08
    公开日:2017-09-15
    发明作者:Roth Michael；Stocker Hanspeter；Stalder Marco
    申请人:Rvr Service Ag；
    IPC主号:
    专利说明:

    Technical Field The invention relates to a winding mandrel, a towel dispenser in which it serves to receive a used portion of a towel rail, and a method of operating the towel dispenser which is carried out upon removal of a used towel web therefrom.
    Background Art In towel dispensers, it is essential that in use, an end portion of the towel web is reliably connected to a winding mandrel so that it does not come loose even with large tensile forces and the transport of the towel and the winding of the used portion of the towel web on the Winding mandrel is ensured. On the other hand, but should the towel rail, if it is essentially completely used and wound on the winding mandrel, be easily removable from the same.
    There have been numerous embodiments of a winding mandrel indicated that should solve this problem. Generic solutions are known from WO 00/069 319 A1, for example. In a first embodiment, the clamping part is designed as a pivot lever mounted on one end of the roller body, which can be pivoted into a loading position from a holding position in which it lies in a groove on the circumferential surface of the roller body and can clamp an end part of a towel rail against it. in which he protrudes from the roll body. Although when loading the towel dispenser, the end part can be easily inserted between the roller body and the pivot lever located in the loading position and then clamped by pivoting the pivot lever in the holding position, but it is not easy to ensure that the end edge of the towel rail to the axis of the Winding mandrel is parallel, ie the towel rail is not warped. Above all, it is not possible to pivot the pivot lever to remove the use of role from the mandrel into the loading position, since it closely surrounds the same. This makes it difficult to pull out the mandrel from the use of role considerably.
    According to a second embodiment, the clamping part is formed as a flat clamping bar which is resiliently connected to an end piece which engages non-rotatably with the roller body. A protruding on an inner bar protrudes into a groove on the peripheral surface of the roller body and clamped between a groove and ledge durchgefädeltes end portion of the towel rail. Again, extraction of the winding mandrel from the use roller is difficult because it usually presses firmly against the outside of the clamping part, which is thereby held in a holding position in which it clamps the end part of the towel rail against the bottom of the groove.
    A similar embodiment of a generic winding mandrel, in which the clamping part is formed as a round rod which lies in a U-shaped groove in the peripheral surface of the roller body, is known from EP 2 196 123 A1.
    DESCRIPTION OF THE INVENTION [0006] The invention is based on the object of specifying a generic winding mandrel which is suitable as a winding mandrel of a towel dispenser. In particular, he should securely hold the end of a towel rail, but also allow easy removal from the use of roles.
    This object is solved by the features in the characterizing part of claim 1.
    The invention provides a winding mandrel, in which a secure holding an end portion of the towel web is guaranteed, but pulling out of the winding mandrel from a wound on the same use roller is easily possible, even if the roll was wound with considerable traction and The mandrel tightly spanned.
    The winding mandrel according to the invention also facilitates the threading of the end part of the towel rail without warping the end edge, which helps to avoid malfunctions during operation. He is also very simple in construction and accordingly robust and easy to produce.
    The invention further provides a towel dispenser in which the winding mandrel according to the invention is used for winding up the used portion of the towel rail and a method for operating such a towel dispenser, which is used in the removal of the used to a use roll on the mandrel wound used towel rail and uses the advantageous properties of the winding mandrel according to the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS In the following, the invention will be explained in more detail with reference to figures, which represent only exemplary embodiments. Show it
    1 shows schematically a cross section through a towel dispenser according to the invention in a standby state,
    2 a corresponding to FIG. 1 cross-section, with the towel dispenser in a state of use,
    3 shows a longitudinal section through an inventive winding mandrel according to a first embodiment in a state of charge,
    4 shows a cross section along IV-IV in Fig. 3,
    5a schematically shows a section corresponding to FIG. 4, with a threaded end part of a towel rail,
    5b shows a section corresponding to FIG. 5a, with the mandrel in a holding state,
    5c is a section corresponding to FIG. 5b, wherein a wound on the winding mandrel use roller is indicated,
    5d shows a section corresponding to FIG. 5c, but with the winding mandrel again in the state of charge, FIG.
    6 schematically shows a section transverse to the axis through a winding mandrel according to the invention according to a two-th embodiment in a state of charge,
    7a is a section corresponding to FIG. 6, with a threaded end part of a towel rail,
    7b shows a section corresponding to FIG. 7a, with the mandrel in a holding state,
    Fig. 7c is a section corresponding to Fig. 7b, wherein a wound on the winding mandrel use roller is indicated, and
    Fig. 7d is a section corresponding to Fig. 7c, but with the winding mandrel is again in the state of charge.
    DETAILED DESCRIPTION OF THE INVENTION A towel dispenser according to the invention shown in FIGS. 1 and 2 has a housing 1. It comprises an upper housing part 2 with a trough 3, in which a clean section of a towel web, wound up to a supply roll 4, is located, also a lower housing part 5, in which a winding mandrel 6 is rotatably mounted on which a used section of the towel rail to a use role 7 is wound up. In the upper housing part 2 also driven by an electric motor, not shown transport roller 8 is rotatably supported against the front of a spring plate 9, while in the lower housing part 5, a likewise not shown electric motor is installed, which independently drives the winding mandrel 6 via a gear transmission.
    The upper housing part 2 is connected to the lower housing part 5 by an intermediate part 10, which is slightly shorter, so that the housing 1 forms a niche 11 there. The upper housing part 2 has at the front of the niche facing the bottom of a discharge slot 12, above which the spring plate 9 and the location of the transport roller 8, against which they are located. The lower housing part 5 also has at the front of the niche 11 facing the top of a receiving slot 13, to which a further spring plate 14 follows, which presses against a guide plate, not shown.
    The towel rail thus includes the supply roll 4, the wound on the winding mandrel 6 use roller 7 and an intermediate portion connecting them, of the supply roll 4 between the transport roller 8 and the spring plate 9 through to the discharge slot 12, then through this, the front part the niche 11 and the receiving slot 13 and, between the spring plate 14 and the guide plate, through to the use of role 7 runs. The part of the intermediate section lying between the discharge slot 12 and the receiving slot 13, that is to say in front of the niche 11, forms an exposed use section 15, whose length is e.g. 18 cm.
    The transport roller 8 is connected to a rotation sensor and a rotary encoder (both not shown). At the front of the intermediate part 11 two directed against the niche 12 infrared sensors 16 are mounted at a distance at the same height side by side.
    The operation of the towel dispenser is as follows: In the standby state shown in Fig. 1, a hand behind the stretched in front of the niche 11 use section 15, this is registered by at least one of the infrared sensors 16 and the transport roller 8 in Movement set, which then, controlled by the encoder, an additional section of the towel rail, a preset length - eg 5 cm -, releases, with a portion of appropriate length is withdrawn from the supply roll 4. The use section 15 extends around the released portion. The towel dispenser is now in the use state shown in Fig. 2, in which the now loose use section 15 can be conveniently used to dry the hands.
    Speak the infrared sensors 16 during a certain time interval - e.g. for 1 sec - not on, so the winding mandrel 6 is set in rotation and pulls the towel web until the use section is taut again. Furthermore, one of the original length of the use section 15 of the example 18 cm corresponding section of the towel rail is then released by the controlled due to the signal of the encoder transport roller 8 and at the same time retracted a section of the same length by further rotation of the winding mandrel 6. As soon as the transport roller 8 stops, the tensile force acting on the used roller 7 increases, whereupon the rotation of the winding mandrel 6 is stopped. In this way, a new use section is made, which consists entirely of a clean section of the towel rail. The towel dispenser is thus again in the ready state shown in FIG. 1 on.
    The winding mandrel 6 is formed according to the invention. A first embodiment thereof is shown in Figs. 3 and 4. The winding mandrel comprises a gear formed as a gear 17 driving part, which belongs to the gear transmission, which connects the winding mandrel 6 with the electric motor and which is rotatably connected to a shaft 18 which forms an axis of the winding mandrel 6. A clamping part, which is designed as a rigid clamping rod 19 parallel to the shaft 18 of a rectangular cross-section which remains constant over the greater part of its length, is likewise firmly connected to the gear 17. On the shaft 18, a roller body 20 is also rotatably mounted, which has substantially the shape of a hollow cylinder which surrounds the shaft 18. It is characterized by an outer end of the shaft 18 opposite the gear 17, e.g. screwed sleeve 21 held, which also serves for releasably engaging the winding mandrel 6 with a sliding bearing in the lower housing part 5.
    The roller body 20 has on its peripheral surface designed as an axial groove 22 of rectangular cross-section concave recess which receives the clamping bar 19, such that it does not protrude radially beyond the side edges of the groove 22. The cross-sections of the groove 22 and the clamping bar 19 are dimensioned so that between the side walls and the bottom of the groove 22 on the one hand and the lateral boundary surfaces and the lower boundary surface of the clamping bar 19 on the other hand each a distance which at least the thickness of the towel rail and preferably about twice this thickness corresponds. The clamping bar 19 tapers at an end portion 23, which adjoins its outer end, towards said end to such an extent that the distance increases at least from the bottom of the groove 22. The groove 22 and the clamping bar 19 preferably extend over the entire length of the roller body 20. As will be explained in more detail below, the left in Fig. 4 side wall of the groove 22 forms a stop surface 24, which with the clamping surface 25 forming a left side Interface of the clamping bar 19 cooperates.
    If a clean towel rail is inserted into the towel dispenser, (Fig. 5a) an end portion 26 of the same taken on the towel dispenser winding mandrel 6 is fixed. For this purpose, the gear 17 is first rotated relative to the roller body 20 in a loading position such that it occupies a loading position in which the clamping rod 19 is approximately centrally located in the groove 22 and the distance between the stop surface 24 and the clamping surface 25 is greater than that Thickness of the towel rail. Then, an end portion 26 of the towel web is threaded by being pushed from the outer end along the axis of the mandrel 6, such that a portion between the side walls and the bottom of the groove 22 and the same facing interfaces of the clamping bar 19, in particular between the Stop surface 24 and the clamping surface 25 is located. This is facilitated by the taper of the end portion 23 of the clamping bar 19. Then the winding mandrel 6 is inserted again in the towel dispenser.
    In operation, the gear 17 is rotated in the winding (arrow), so it takes the clamping bar 19, while the roller body 20 first still stands still until it assumes a holding position relative to the gear 17, in which the clamping surface 25 a smaller distance from the abutment surface 24 has, such that it clamps a portion of the end portion 26 against the stop surface 24, whereupon upon further rotation of the gear 17, the roller body 20 is entrained. Upon further rotation, therefore, the entire winding mandrel 6 rotates, so that increasingly turns of a use roller 7 about the same place (Fig. 5b, 5c). The end portion 26 is reliably held by clamping the lying between the stop surface 24 and the clamping surface 25 part, especially as the clamping force is adjusted in accordance with the force exerted by the winding mandrel 6 on the end portion 26 tensile force.
    When removing a used towel rail, which is substantially completely present as wound on the mandrel 6 use roller 7, the mandrel 6 is removed with the use of role 7 from the towel dispenser. Subsequently, the gear 17 is slightly rotated against the Aufwickelsinn (arrow in Fig. 5c) until the roll body 20 opposite the same again assumes the loading position (Figure 5d), in which the distance between the stop surface 24 and the clamping surface 25 is so large that there is no more clamping of the towel rail. The winding mandrel 6 can then be pulled without difficulty by pulling on the gear 17 from the use roller 7 and are discharged. The use roller 7 can then be e.g. transported to a laundry, washed and ready for a next use.
    In a second embodiment (Figures 6, 7a-d) of the winding mandrel 6, the recess in the peripheral surface of the roller body 20 is not concave, but merely forms an axially continuous planar flattening 27, i. the peripheral surface of the roller body 20 deviates there from the cylinder shell mold against the axis. Accordingly, the clamping part is designed as a flat clamping rod 19. It has a convexly rounded outer surface 28, which substantially continues the circumferential surface of the roller body 20. A facing against the roller body 20 inner surface is also slightly convex. In turn, its left half forms a clamping surface 25 which cooperates with a stop surface 24 formed by the left half of the part of the circumferential surface of the roller body 20 located in the region of the flattening 27.
    Incidentally, the operation corresponds exactly to that of the winding mandrel according to the first embodiment. 7a-c again show the threading and the changeover from the loading position (FIG. 7a) into the holding position (FIG. 7b, c) and the return to the loading position (FIG. 7d) in preparation for the withdrawal of the winding mandrel 6 from FIG
    权利要求:
    Claims (10)
    [1]
    Used roller 7. The threading of the end portion 26 is slightly easier than the first embodiment, especially when, as provided, the clamping rod 19 also tapers towards the outer end. In addition, since the peripheral surface of the roller body 20 and the outer surface 28 form almost a complete cylinder surface, the towel rail is full on the winding mandrel 6. Since the end portion 26 is not stretched over sharp edges, it is particularly spared. Reference numeral list 1 housing 2 upper housing part 3 pan 4 supply roll 5 lower housing part 6 winding mandrel 7 use roller 8 transport roller 9 spring plate 10 intermediate part 11 niche 12 discharge slot 13 receiving slot 14 spring plate 15 use section 16 infrared sensor 17 gear 18 shaft 19 clamping rod 20 roller body 21 sleeve 22 groove 23 end portion 24 abutment surface 25 clamping surface 26 end portion 27 flattening 28 outer surface of patent claims
    1. winding mandrel (6) for a towel dispenser, with a at one end of the winding mandrel (6) arranged driving part, with a roller body (20) on a ümfangsflache a longitudinally extending stop surface (24) and having a clamping part which also extends along the roller body (20), characterized in that the clamping part is rigidly connected to the drive part, while the roller body (20) opposite the drive part between a holding position in which the stop surface (24) a smaller distance to a their opposite clamping surface (25) of the clamping part and a loading position in which the stop surface (24) has a greater distance from the clamping surface (25), is rotatable.
    [2]
    2. winding mandrel according to claim 1, characterized in that the drive part is designed as a gear (17).
    [3]
    3. winding mandrel according to claim 1 or 2, characterized in that the roller body (20) is designed as a hollow cylinder and the drive part with a shaft (18) is connected, which passes through the interior of the roller body (20) and over the drive part opposite outermost end thereof protrudes.
    [4]
    4. Wickeidorn according to one of claims 1 to 3, characterized in that the stop surface (24) is an interface of a recess on the peripheral surface of the roller body (20).
    [5]
    5. winding mandrel according to claim 4, characterized in that the clamping part and the recess each have at least over the greater part of their length in each case constant cross-section.
    [6]
    6. winding mandrel according to claim 4 or 5, characterized in that the recess is formed as recessed into the peripheral surface groove (22) and the clamping part as arranged in the groove clamping bar (19).
    [7]
    7. winding mandrel according to claim 4 or 5, characterized in that the recess as a flattening (27) of the peripheral surface is formed and the clamping part as on the flattening (27) arranged flat clamping bar (19).
    [8]
    8. Towel dispenser with a housing (1), a device for receiving a supply roll (4) from clean towel rail, a rotatably mounted in the housing winding mandrel (6) for receiving used towel rail and a drive motor for rotating the same in a Aufwickelsinn and at least one rotatably mounted in the housing drivable transport roller (8), characterized in that the winding mandrel (6) according to one of claims 1 to 7 formed and the drive motor is the same operatively connected to the drive part.
    [9]
    9. Towel dispenser according to claim 8, with a towel web, of which a clean section as a supply roll (4) is present, an intermediate section on the transport roller (8) led to the winding mandrel (6) and a used section on the winding mandrel (6) to a use role (7) is wound, characterized in that an end portion (26) of the used portion of the towel web between the clamping surface (25) of the clamping part and the stop surface (24) of the holding body in the roll body (20) of the winding mandrel (6) is clamped ,
    [10]
    10. A method for operating a towel dispenser according to claim 9, characterized in that when removing the to a use roller (7) on the winding mandrel (6) wound used portion of the towel web of the winding mandrel (6) removed from the housing (1), the drive part relative to the roller body (20) is rotated against the Aufwickelsinn so that the roller body (20) transferred from the holding position to the loading position and so the clamping of the end portion (26) of the use roller (7) is released and then the winding mandrel (6) after the Side of the drive part is pulled out of the use roller (7).
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    同族专利:
    公开号 | 公开日
    WO2017165985A1|2017-10-05|
    CH712229B1|2020-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1448125A|1921-11-08|1923-03-13|Otterbein P Kiracofe|Winding chuck for fabric, paper, and other materials|
    US3826548A|1972-02-04|1974-07-30|Nemco Apparatebau Ag|Dispenser for hand towelling|
    WO1998004490A1|1996-07-29|1998-02-05|Risa, Tor, Einar|Spooling device, especially for the spooling of load straps|
    DE20309309U1|2003-06-13|2004-07-22|Ophardt Hygiene-Technik Gmbh + Co. Kg|Roller towel dispenser has upper feed roller and lower take-up roller mounted with their shafts at right angles to backing plate, section of towel for use passing between these with its edge towards user|
    JP2011088689A|2009-10-20|2011-05-06|Ryokosha:Kk|Manufacturing device of winding body|
    法律状态:
    2020-02-14| PCOW| Change of address of patent owner(s)|Free format text: NEW ADDRESS: WATTWERKSTRASSE 1, 4416 BUBENDORF (CH) |
    优先权:
    申请号 | 申请日 | 专利标题
    CH00296/16A|CH712229B1|2016-03-08|2016-03-08|Winding mandrel and towel dispenser and process for its operation.|CH00296/16A| CH712229B1|2016-03-08|2016-03-08|Winding mandrel and towel dispenser and process for its operation.|
    PCT/CH2017/000024| WO2017165985A1|2016-03-08|2017-03-07|Winding spindle and hand-towel dispenser and method for operating the latter|
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