EP4041018B1 - Fermeture rotative dotée d'un élément de tension - Google Patents

Fermeture rotative dotée d'un élément de tension Download PDF

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Publication number
EP4041018B1
EP4041018B1 EP20789892.5A EP20789892A EP4041018B1 EP 4041018 B1 EP4041018 B1 EP 4041018B1 EP 20789892 A EP20789892 A EP 20789892A EP 4041018 B1 EP4041018 B1 EP 4041018B1
Authority
EP
European Patent Office
Prior art keywords
drive pinion
rotary
gears
rotary closure
closure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20789892.5A
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German (de)
English (en)
Other versions
EP4041018A1 (fr
Inventor
Roland Jungkind
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Puma SE
Original Assignee
Puma SE
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Filing date
Publication date
Application filed by Puma SE filed Critical Puma SE
Publication of EP4041018A1 publication Critical patent/EP4041018A1/fr
Application granted granted Critical
Publication of EP4041018B1 publication Critical patent/EP4041018B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00—Other fastenings specially adapted for shoes
    • A43C11/16—Fastenings secured by wire, bolts, or the like
    • A43C11/165—Fastenings secured by wire, bolts, or the like characterised by a spool, reel or pulley for winding up cables, laces or straps by rotation
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41F—GARMENT FASTENINGS; SUSPENDERS
    • A41F1/00—Fastening devices specially adapted for garments
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/10—Arrangement of fasteners

Definitions

  • the present invention relates to a rotary fastener for a sporting item, a piece of luggage or a shoe, in particular a sports shoe, in which fastener a tensioning element can be tensioned via a tensioning roller within a housing and can be released again if necessary to open the fastener.
  • a rotary fastener is used, for example, for sports shoes in order to avoid a classic lacing of a shoelace and to close the shoe opening by turning it alone.
  • Such screw caps are usually realized with tensioning elements made of plastic in the form of thin cables, which slide in eyelets provided for this purpose or in the upper material of the shoe.
  • such rotary fasteners can also be used in other areas, such as bags, luggage or articles of clothing.
  • Such rotary fasteners are not limited to just the shoe area in their application.
  • a rotary fastener for a sports shoe in which a tensioning roller mounted in a housing is provided for lacing the shoe by means of a tensioning element, which is wound up therein. It is actuated by means of a rotary knob, with the closure having a pawl with locking teeth on the inside, for releasing the engagement of the toothing from the outside, a locking lever must be actuated by turning it to the left.
  • the object of the present invention to provide a screw cap for such applications with a tensioning element, which is easy to operate and very compact with as few components as possible.
  • the screw cap according to the invention should also enable secure closing and opening in the long term.
  • a rotary fastener for a sports item, in particular a sports shoe, which comprises a housing part with an axis on which a rotary knob is attached to rotate a tensioning roller for a tensioning element, in particular a cable, for the fastener for winding or for to actuate the release of the tensioning element, as well as a first gear wheel with internal teeth connected to the rotary knob and a rotating second gear wheel with internal teeth connected to the tension roller, the rotary fastener being characterized in that a drive pinion that can be coupled thereto is provided between the gear wheels and that the drive pinion has a regarding the Drive axle has radially displaceable storage for selectively coupling with and detaching from the internal teeth of the gears.
  • a drive pinion that is to say a gear wheel which is significantly smaller than the gear wheels, which can be coupled to the gear wheels with internal teeth.
  • the drive pinion is built into the rotary cap with a specific bearing, namely a bearing that allows coupling and decoupling (release) with the internal teeth of the gears.
  • the drive pinion is thus not installed in a stationary manner in the housing part of the rotating closure, but can be deliberately shifted or relocated in order to effect the coupling and decoupling of the drive gearing depending on the operating situation.
  • a displaceable mounting of the drive pinion can have any form of a displaceable mounting on such axes of rotation for pinions.
  • the bearing only has to be designed to be displaceable or changeable in such a way that, in the event of a displacement, the coupling and detachment with the gear wheels is made possible.
  • the drive pinion thus serves to connect the internal teeth of the stationary first gear wheel to the internal teeth of the second rotating gear wheel, which in turn actuates the tensioning roller of the tensioning element.
  • the tensioning element can be tensioned with great force, and simply by turning in a different direction, for example, the connection between the pinion and the internal teeth can be released immediately, i.e. the tensioning element can be released and thus the closure in a very simple manner way then be reopened.
  • the twist lock according to the invention is very compact due to the low overall height and width and includes a comparatively small number of parts and components required. This greatly reduces the susceptibility to interference.
  • twist lock according to the invention can also be used in situations in which a cumbersome form of operation is not very possible. Last but not least, the production costs are greatly reduced compared to previously known twist-lock fasteners of this type.
  • the bearing of the drive pinion is designed to be radially displaceable with a change in the direction of rotation on the rotary knob.
  • a direction of rotation for example clockwise, is used to close and tighten the closure by winding up the tightening element.
  • a reverse rotation for example, in the opposite direction to the clockwise direction thus enables the closure to be easily released.
  • the drive pinion is simply moved radially inwards in its bearing by changing the direction of rotation on the rotary knob.
  • no additional actuating elements are required to open the closure.
  • the operation is also very intuitive for the user due to such a reversal of the direction of rotation.
  • the bearing of the drive pinion has an arcuate part-circular groove or an arcuate slot, which changes in distance with respect to the axis over its course.
  • the mounting of the drive pinion is also displaceable with respect to the internal toothing, for example by a bearing pin of the drive pinion being selectively displaced in the pitch circular groove or the slot and, for example, shifted inwards towards the axis of the rotary fastener.
  • the part-circle groove can be composed of a first section, which is concentric to the axis of the rotary fastener, and a second section, which is no longer concentric thereto but runs inward. This achieves a safety function, since the toothing does not "open" immediately with every slight turn of the rotary knob.
  • the drive pinion is mounted in an intermediate housing inside the housing part of the rotary fastener.
  • an intermediate housing can be implemented, for example, in the form of a U-shaped sheet metal part with a very thin design.
  • the variation of the distance of the bearing from the drive pinion to the toothing of the gear wheels can easily be realized within the housing.
  • the storage elements are not complex components that require complex manufacturing steps and assembly work.
  • the number of teeth of the gears of the two internal gears varies slightly with the same core diameter, at least by one tooth.
  • the tooth difference can also be two, three or four teeth.
  • the number of teeth and also the number of toothings can vary, as long as the two toothings of the gearwheels ensure essentially the same coupling with the drive pinion.
  • the drive pinion has a comparatively large reduction ratio to the gear wheels in a range of approximately 1:3 and the drive pinion rotates on a circular path around the fixed gear wheel.
  • a very large reduction ratio a large reduction can be realized on a very small size, which is required for effective clamping of the clamping element.
  • Greater forces can also be applied to the tensioning element in comparison to a lower reduction or gear ratio. For example, if the first gear on the housing has twenty-seven teeth, the second gear on the tensioning wheel has twenty-four teeth and the pinion has nine teeth, a total reduction ratio of 1:8 can be realized.
  • the gear wheels are essentially completely enclosed from the outside by the housing part of the rotary closure.
  • the gears are therefore essentially located inside a closed housing and are thus protected from external interference and damage.
  • the mounting of the drive pinion runs eccentrically to an axis center point of the drive axis of the rotary fastener.
  • the drive pinion can also be disengaged from the toothing of the internal toothing and engaged there again in a different way than is the case with an arcuate slot or groove is.
  • the bearing is implemented simply eccentrically in relation to the center point of the drive axle and can, for example, also have a rectilinear shape or a configuration other than that previously described.
  • FIG. 1a to 1d an exemplary embodiment of a rotary fastener 10 according to the invention is shown in various side/top views and sectional views.
  • the screw cap comprises a housing part 1 and a rotary knob 2 fastened to an axis 3, which is formed with a kind of outer corrugation for better gripping.
  • the rotary knob 2 is attached to the housing part 1 in such a way that it can be used to actuate a first gearwheel 4 with internal teeth for starting a tensioning roller 6 inside the rotary fastener 10 .
  • the axis 3 itself can be fixed or even rotating.
  • a tensioning element not shown in the figures, such as a plastic wire or plastic cable, can be tensioned over the tensioning roller 6 by being wound around the tensioning roller 6 .
  • the tensioning roller 6 can also be unlocked again in order to release the closure 10 , this being done according to the invention with a special drive pinion 7 .
  • the tensioning roller 6 is firmly connected to a second gear wheel 5 with internal teeth.
  • the idler pulley 6 is formed in a quasi-integral manner with the second rotating gear 5, but it may also be formed separately from and connected to it.
  • the tensioning roller 6 is rotated by the drive pinion 7, which meshes with the first gear wheel 4 and the second gear wheel 5, and the tensioning element is thus wound up with a comparatively large transmission ratio.
  • the drive pinion has a much smaller Number of teeth in comparison to the number of teeth of the internal teeth of the gears 4, 5 (cf. 1c ).
  • the drive pinion 7 is mounted inside the internal teeth of the gears 4, 5 via a specific type of bearing of the bearing journals of the drive pinion 7.
  • the drive pinion 7 according to the invention is namely not fixed at one point in the rotary fastener 10, but is movable and displaceable by means of an arcuate groove 8, in which the bearing journals of the drive pinion 7 are inserted.
  • the arcuate groove 8 or the slot of the recess is provided in an intermediate housing 9 according to this exemplary embodiment, which is built into the interior of the housing part 1 between the gear wheels 4, 5 and is coupled to the rotary knob 2 in a rotationally fixed manner.
  • the arcuate groove 8 is not concentric with a center point of the axis of rotation 3, but approaches the axis of rotation 3 over its course, at least in a partial section.
  • the groove 8 is arranged more or less eccentrically in relation to the rotary fastener 10 and the axis of rotation 3, so that when the drive pinion 7 moves within the groove 8, the teeth of the drive pinion 7 disengage from the teeth of the internal teeth of the gear wheels 4, 5 in a targeted manner let loose.
  • a first section of the groove 8 is concentric with the axis 3, for example, in order to prevent the closure 10 from being opened unintentionally when the rotary knob 2 is turned only slightly.
  • the 1c shows how too 2 which is the engagement position for closing the closure 10.
  • the screw cap 10 can be easily opened again.
  • the drive pinion is only automatically shifted radially with respect to the axis 3 . This ensures a very compact and flat design.
  • the automatic displaceability of the drive pinion 7 in the groove 8 can also take place differently than shown in this example, as long as the drive pinion 7 can be moved from an engaged position to a disengaged position (cancelled engagement with internal teeth) by changing the direction of rotation on the rotary knob 2.
  • the 2 shows a top view of a simplified interior view of the main components of the rotary fastener 10 according to the invention.
  • the arrows indicate that by changing the direction of rotation on the Rotary knob 2 changes the rotation of the gear wheel 4 in such a way that the drive pinion 7 moves in the direction of the arrow along the circular groove 8 and is thus brought out of engagement with the internal teeth (closed situation) (open position).
  • the number of teeth of the internal gearing of gear wheel 4 and that of gear wheel 5 varies slightly. For example, there is a tooth difference of one between the gear wheels 4, 5, so that when the drive pinion 7 engages, a kind of self-locking of the rotating components results.
  • the intermediate housing 9 is inserted completely inside the gear wheels 4, 5 and the housing 1 in the form of a U-shaped sheet metal part with the arcuate groove 8.
  • the intermediate housing 9 is firmly coupled to the rotary knob 2 via cams and thus forms a drive part with the pinion 7 .
  • the drive pinion 7 has a fairly large reduction ratio in relation to the internal teeth of the gears 4, 5, for example in the range of 1: 3.
  • the gears 4, 5, however, have the same pitch circle and the drive pinion 7 rotates on a circular path around the fixed one Gear 4. If the pinion has nine teeth, the first gear twenty-seven teeth and the second gear twenty-four teeth, a total reduction ratio of 1:8 can be realized. However, the number of teeth can vary.
  • the housing part 1 is in the 3 shown, which is on the outside slot-like openings for the passage of a tensioning element that is wound on the tensioning roller 6, is used.
  • the housing part 1 has a kind of hat-like shape, which completely closes off the components from the outside together with the base plate 11 .
  • the first gear 4 with internal teeth is directly integrated in the embodiment. However, it can also be designed separately and connected to the housing part 1 .
  • the housing part 1 is in turn coupled to a rotary knob 2 shown above, via which the first gear wheel 4 and the tensioning roller 6 can be actuated via the second gear wheel 5 when the drive pinion 7 engages (cf. above 1c ).
  • the tension is released due to the displacement of the drive pinion 7 and the rotary lock 10 is thus opened.
  • FIGS. 4a to 4f show the individual components and components of the twist lock 10 of this embodiment in sectional views and side views.
  • the Figure 4a shows the assembled state of the twist lock 10 according to the embodiment of the invention.
  • Figure 4b shows the rotary knob 2 with the fastening screw 12, in which case it has a contoured, corrugated shape on the outside for better gripping.
  • Figure 4c shows the housing part 1 with the first gear 4 with Internal teeth, which comes into engagement with the drive pinion 7.
  • Figure 4d shows the drive pinion 7 with the bearing journals provided on both sides, which are inserted into arcuate recesses, slots or grooves 8 provided for this purpose on the intermediate housing 9.
  • the intermediate housing 9 is implemented here as a U-shaped sheet metal part and thus has a very low overall height for a compact form of the screw cap. The manufacturing costs are also reduced in this way.
  • the Figure 4e shows the rotating, second gear wheel 5 with the internal teeth with a slightly different number of teeth compared to the first gear wheel 4 with the purpose of a kind of self-locking between the components 4, 5 and 7.
  • the tension roller is integral with the gear wheel 5 6 formed, which can, however, also be formed as a separate part.
  • the clamping element (cable) itself is not shown.
  • Figure 1 shows the bottom plate 11 and the drive axle 3 mounted through the bottom plate, around which the components such as the knob 2, the gears 4, 5 and the tension roller 6 rotate for the functioning of the winding of the tension element.
  • the screw cap 10 according to the invention with the structure described has the advantage that it has a very compact design with a low height in particular.
  • the parts and components are reduced in number and the twist lock 10 is comparatively easy and inexpensive to manufacture.
  • No additional controls such as a knob or lever are required to release the tension.
  • a very large transmission ratio can also be achieved with a comparatively simple structure, so that a strong clamping effect is also made possible when clamping not very elastic shoe parts or similar parts.
  • the twist lock according to the invention works in the manner of a toothed cardanic transmission, such as a cyclo-transmission, and has the special variable storage form of the drive pinion 7, by means of which the engagement and disengagement of the teeth of the drive pinion 7 and the gears 4, 5 is accomplished according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Transmission Devices (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Glass Compositions (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Claims (8)

  1. Fermeture rotative (10) pour un article de sport, une pièce de bagage ou une chaussure, notamment une chaussure de sport, comprenant une partie de boîtier (1) avec un axe (3) sur lequel un bouton rotatif (2) est monté pour actionner un galet de tension (6) pour un élément de tension, notamment un câble, pour la fermeture (10) afin d'enrouler ou de desserrer l'élément de tension, ainsi qu'une première roue dentée (4) à denture intérieure reliée au bouton rotatif (2) et une deuxième roue dentée (5) rotative à denture intérieure reliée au galet de tension (6),
    caractérisée en ce que
    entre les roues dentées (4, 5) un pignon d'entraînement (7) pouvant être couplé à celles-ci est prévu et en ce que le pignon d'entraînement (7) présente un palier déplaçable radialement par rapport à l'axe d'entraînement (3) pour le couplage et le desserrement au choix des dentures intérieures des roues dentées (4, 5).
  2. Fermeture rotative (10) selon la revendication 1, caractérisée en ce que le palier du pignon d'entraînement (7) est configuré de manière à pouvoir être déplacé radialement avec un changement de la direction de rotation sur le bouton rotatif (2).
  3. Fermeture rotative (10) selon la revendication 1 ou 2, caractérisée en ce que le palier du pignon d'entraînement (7) présente une rainure circulaire partielle (8) en forme d'arc, dont la distance par rapport à l'axe (3) se modifie sur son parcours.
  4. Fermeture rotative (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que le palier du pignon d'entraînement (7) est prévu dans un boîtier intermédiaire (9) à l'intérieur de la partie de boîtier (1).
  5. Fermeture rotative (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que, pour un même diamètre de noyau, le nombre de dents des roues dentées (4, 5) varie légèrement, d'au moins une dent.
  6. Fermeture rotative (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que le pignon d'entraînement (7) présente un rapport de réduction relativement important par rapport aux roues dentées (4, 5), de l'ordre de 1:3, et tourne sur une trajectoire circulaire autour de la roue dentée fixe (4).
  7. Fermeture rotative (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que les roues dentées (4, 5) sont essentiellement entourées de l'extérieur par la partie de boîtier (1).
  8. Fermeture rotative (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que le palier du pignon d'entraînement (7) s'étend de manière excentrée par rapport au centre d'axe de l'axe (3).
EP20789892.5A 2019-10-10 2020-10-05 Fermeture rotative dotée d'un élément de tension Active EP4041018B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019105576.6U DE202019105576U1 (de) 2019-10-10 2019-10-10 Drehverschluss mit Spannelement
PCT/EP2020/077772 WO2021069341A1 (fr) 2019-10-10 2020-10-05 Fermeture rotative dotée d'un élément de tension

Publications (2)

Publication Number Publication Date
EP4041018A1 EP4041018A1 (fr) 2022-08-17
EP4041018B1 true EP4041018B1 (fr) 2023-03-08

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ID=68499828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20789892.5A Active EP4041018B1 (fr) 2019-10-10 2020-10-05 Fermeture rotative dotée d'un élément de tension

Country Status (7)

Country Link
US (1) US12053058B2 (fr)
EP (1) EP4041018B1 (fr)
JP (1) JP7536865B2 (fr)
CN (1) CN114502031B (fr)
DE (1) DE202019105576U1 (fr)
ES (1) ES2942663T3 (fr)
WO (1) WO2021069341A1 (fr)

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CN110921437B (zh) * 2019-12-18 2024-10-01 深圳市菲特奥科技有限公司 一种收绳装置及具有绳带的用品
CN112660944B (zh) * 2020-12-17 2023-09-12 珠海京师智造科技有限公司 一种线绳锁扣装置
CN115500581B (zh) * 2021-06-23 2025-07-25 东莞市旋系智能科技有限公司 一种快速系带器
WO2024089603A1 (fr) * 2022-10-24 2024-05-02 Puma SE Article chaussant ayant un système de fermeture
WO2024151997A2 (fr) * 2023-01-12 2024-07-18 Boa Technology Inc. Dispositif de fermeture à bobine
GB2630101A (en) * 2023-05-17 2024-11-20 Open Bionics Ltd A cable tensioner for a wearable item

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Also Published As

Publication number Publication date
CN114502031A (zh) 2022-05-13
DE202019105576U1 (de) 2019-10-22
US20240065382A1 (en) 2024-02-29
EP4041018A1 (fr) 2022-08-17
CN114502031B (zh) 2024-01-30
ES2942663T3 (es) 2023-06-05
JP2022550992A (ja) 2022-12-06
JP7536865B2 (ja) 2024-08-20
US12053058B2 (en) 2024-08-06
WO2021069341A1 (fr) 2021-04-15

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