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EP0368798A1 - Cable tensioner with a winding reel for a ski boot - Google Patents

Cable tensioner with a winding reel for a ski boot Download PDF

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Publication number
EP0368798A1
EP0368798A1 EP89810792A EP89810792A EP0368798A1 EP 0368798 A1 EP0368798 A1 EP 0368798A1 EP 89810792 A EP89810792 A EP 89810792A EP 89810792 A EP89810792 A EP 89810792A EP 0368798 A1 EP0368798 A1 EP 0368798A1
Authority
EP
European Patent Office
Prior art keywords
drum
handle
toothing
take
pinion
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.)
Granted
Application number
EP89810792A
Other languages
German (de)
French (fr)
Other versions
EP0368798B1 (en
Inventor
Vincenzo Bidoia
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.)
Lange International SA
Original Assignee
Lange International SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lange International SA filed Critical Lange International SA
Priority to AT89810792T priority Critical patent/ATE93691T1/en
Publication of EP0368798A1 publication Critical patent/EP0368798A1/en
Application granted granted Critical
Publication of EP0368798B1 publication Critical patent/EP0368798B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A43C11/16—Fastenings secured by wire, bolts, or the like
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/0435—Adjustment of the boot to the foot
    • A43B5/0443—Adjustment of the boot to the foot to the instep of the foot, e.g. metatarsals; Metatarsal clamping devices
    • A43B5/0447—Adjustment of the boot to the foot to the instep of the foot, e.g. metatarsals; Metatarsal clamping devices actuated by flexible means, e.g. cables, straps
    • A43B5/0449—Adjustment of the boot to the foot to the instep of the foot, e.g. metatarsals; Metatarsal clamping devices actuated by flexible means, e.g. cables, straps with the actuator being disposed at the rear side of the boot
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2183—Ski, boot, and shoe fasteners

Definitions

  • a tensioner of this type is described in patent application DE-2 341 658.
  • This tensioner comprises a reel provided with a non-return device constituted by a ratchet wheel movable axially with the drum against the action of a spring and capable of being thus released from the pawl by an axial pressure on the handle of the tensioner.
  • Direct drive of the drum requires a relatively large and therefore bulky diameter control button, and despite this it can be difficult to sufficiently tension the cable.
  • the object of the present invention is to produce a cable drum tensioner of the type described above, that is to say one whose drum can be released immediately by a simple pressure on the handle, but in which the drum can be easily rotated by using one of the elements of the non-return device.
  • the non-return device is still active, but it can be decoupled from the toothing of the take-up drum to release it.
  • the neutralization of the non-return device that is to say the release of the drum, is done by a simple pressure on the handle.
  • the non-return device can consist of any known device, for example a one-way coupling with balls or rollers or with ratchet, or by a gear of the irreversible reduction type, such as a helical gear cooperating with a worm .
  • the tensioner shown in Figure 1 is in the form of a rectangular housing 1, of metal or synthetic material, in which is mounted a drum 2 provided with two flanges 3 and 4 and on which is hung the end of a cable 5 passing through the housing 1 through a hole 6.
  • the upper flange 4 of the drum 2 is attached to a toothed wheel 7.
  • the drum 2 and the toothed wheel 7 can be made in one piece.
  • the assembly is provided with two pivots 8 and 9 engaged in the walls of the housing 1.
  • the toothed wheel meshes with the pinion 10 secured to an axis 11 passing through the housing 1 is fixed to a handle 12 for driving the pinion 10.
  • FIG. 2 shows, by way of example, a unidirectional coupling device in which the element 13 is provided with teeth 20 defining housings 21 in which rollers 22 are housed.
  • the teeth 20 can be cut on the element 13 and axially movable with this element or on the contrary cut on an axially fixed cylinder in which the element 13 can slide, integral in rotation by at least one groove.
  • the pinion 10 drives the toothed wheel 11 and consequently the drum 2 on which the cable is wound 5.
  • the drum 2 cannot rotate in the direction of the course as it is retained by the pinion 10 itself prevented from rotating in the other direction by the non-return device 13/14.
  • winding and rotary or declutching functions are separate, both mechanically and spatially. This makes it possible to have a thin housing for the drum 2 and the toothed wheel 7, which can have a relatively large diameter relative to the pinion 10, so that one can have a large reduction in the drive torque of the pinion 10 , which makes it possible to have a handle 12 of small diameter and small thickness, that is to say of a reduced bulk outside the shoe.
  • the cable tensioner comprises a coaxial winding drum 25 and come in one piece with an axis 26 at the end of which is fixed a handle 27.
  • the winding drum 25 is housed in a housing 28 in the form cup and its axis 26 passes through a wheel 29 with helical teeth meshing with an endless screw 30 extending in the plane of the wheel 29.
  • the housing 28 is closed by a cover 31.
  • the instantaneous release of the cable 5 is obtained by a pressure P on the handle 27.
  • This pressure P has the effect of compressing the spring 34 and releasing the teeth 32 and 33 from one another, as shown in FIG. 9
  • the winding drum 25 is therefore released from the non-return device and it can be driven freely by the cable 5.
  • FIG. 10 shows such an alternative embodiment.
  • An auxiliary lever 38 is pivoted by means of an axis 39 on the cover 31. This lever 38 is crossed by the axis 26 which has a bearing 40 on which the lever 38 comes to act when a pressure P1 is exerted on its end .

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)

Abstract

A cable tensioner comprising a winding drum (2) driveable in rotation by means of a handle (12) by the agency of a pinion (10) meshing with a gear wheel (7). The pinion (10) forms part of a non-return device (13, 14). Pressure on the handle (12) releases the drum of the non-return device. According to another embodiment, the non-return device is composed of a worm gear and the drum is released by shifting this.

Description

La présente invention a pour objet un tendeur de câble à tambour enrouleur pour chaussure de ski, comprenant, dans un boîtier, un tambour enrouleur muni d'une dentu­re et entraînable en rotation par une poignée extérieu­re, et un dispositif anti-retour empêchant le tambour de tourner dans le sens du déroulement, ce dispositif anti-retour étant neutralisable par une action sur la poignée.The subject of the present invention is a cable drum tensioner for a ski boot, comprising, in a housing, a winding drum provided with teeth and rotatable by an external handle, and a non-return device preventing the drum to rotate in the direction of the unwinding, this non-return device being neutralizable by an action on the handle.

Un tendeur de ce type est décrit dans la demande de brevet DE-2 341 658. Ce tendeur comprend un enrouleur muni d'un dispositif anti-retour constitué par une roue à rochet déplaçable axialement avec le tambour contre l'action d'un ressort et susceptible d'être ainsi déga­gée du cliquet par une pression axiale sur la poignée du tendeur. L'entraînement direct du tambour nécessite un bouton de commande de diamètre relativement grand et par conséquent encombrant, et malgré cela il peut être difficile de tendre suffisamment le câble.A tensioner of this type is described in patent application DE-2 341 658. This tensioner comprises a reel provided with a non-return device constituted by a ratchet wheel movable axially with the drum against the action of a spring and capable of being thus released from the pawl by an axial pressure on the handle of the tensioner. Direct drive of the drum requires a relatively large and therefore bulky diameter control button, and despite this it can be difficult to sufficiently tension the cable.

Un tendeur équipé d'un dispositif anti-retour est éga­lement décrit dans la demande de brevet EP-0 056 953. Dans ce tendeur, le dispositif anti-retour est consti­tué par un moyeu muni d'un flasque présentant une den­ture de champ coopérant avec un cliquet monté sur un ressort. Ce cliquet peut être repoussé en faisant tour­ner la poignée dans le sens anti-horaire, grâce à un montage particulier de la poignée sur le moyeu. Ce ten­deur est constitué d'un grand nombre de pièces et son dispositif anti-retour ne peut être libéré qu'avec la main, par un mouvement de rotation de la poignée.A tensioner equipped with a non-return device is also described in patent application EP-0 056 953. In this tensioner, the non-return device consists of a hub provided with a flange having a field toothing cooperating with a pawl mounted on a spring. This pawl can be pushed back by turning the handle anti-clockwise, thanks to a special mounting of the handle on the hub. This tensioner consists of a large number of parts and its non-return device can only be released with the hand, by a rotary movement of the handle.

Un dispositif de construction très simple est décrit dans la demande de brevet DE-2 900 077. Le tambour est solidaire d'une roue en étoile tournant excentriquement et roulant à l'intérieur d'une denture fixe, l'ensemble constituant un engrenage excentrique auto-blocant. Rien n'est prévu pour libérer rapidement le tambour.A very simple construction device is described in patent application DE-2 900 077. The drum is integral with a star wheel which rotates eccentrically and rolls inside a fixed toothing, the assembly constituting an eccentric gear. self-locking. There are no plans to quickly release the drum.

La présente invention a pour but la réalisation d'un tendeur de câble à tambour enrouleur du type décrit plus haut, c'est-à-dire dont le tambour peut être libé­ré immédiatement par une simple pression sur la poignée, mais dans lequel le tambour peut être entraîné aisément en rotation, en utilisant l'un des éléments du disposi­tif anti-retour.The object of the present invention is to produce a cable drum tensioner of the type described above, that is to say one whose drum can be released immediately by a simple pressure on the handle, but in which the drum can be easily rotated by using one of the elements of the non-return device.

Le tendeur de câble à tambour enrouleur selon l'inven­tion est caractérisé par le fait que le dispositif anti-retour neutralisable est constitué d'un jeu de mobiles dont l'un engrène avec la denture du tambour enrouleur, l'un de ces mobiles pouvant être entraîné en rotation de l'extérieur pour l'entraînement du tambour enrouleur.The cable drum tensioner according to the invention is characterized in that the neutralizable non-return device consists of a set of mobiles, one of which meshes with the teeth of the drum, one of these mobiles being able to be rotated from the outside to drive the take-up drum.

Le dispositif anti-retour est toujours actif, mais il peut être découplé de la denture du tambour enrouleur pour libérer celui-ci. La neutralisation du dispositif anti-retour c'est-à-dire la libération du tambour, se fait par une simple pression sur la poignée.The non-return device is still active, but it can be decoupled from the toothing of the take-up drum to release it. The neutralization of the non-return device, that is to say the release of the drum, is done by a simple pressure on the handle.

Le dispositif anti-retour peut être constitué de tout dispositif connu, par exemple un accouplement unidirec­tionnel à billes ou à rouleaux ou à cliquet, ou par un engrenage du type réducteur irréversible, tel qu'une roue à denture hélicoïdale coopérant avec une vis sans fin.The non-return device can consist of any known device, for example a one-way coupling with balls or rollers or with ratchet, or by a gear of the irreversible reduction type, such as a helical gear cooperating with a worm .

Le dessin annexé représente, à titre d'exemple, trois formes d'exécution de l'invention.

  • La figure 1 est une vue en coupe d'un tendeur selon une première forme d'exécution.
  • La figure 2 est une vue en perspective du dipositif anti-retour du tendeur représenté à la figure 1.
  • La figure 3 est une vue partielle analogue à celle de la figure 1, représentant le tendeur en position de libération du tambour d'enroulement.
  • La figure 4 est une vue partielle en coupe d'une deu­xième forme d'exécution.
  • La figure 5 illustre un exemple d'utilisation sur une chaussure, des tendeurs représentés aux figures 1 à 4.
  • La figure 6 est une vue en coupe, selon VI-VI de la figure 7, d'un tendeur selon une troisième forme d'exécution.
  • La figure 7 représente, en perspective, deux éléments essentiels du tendeur représenté à la figure 6.
  • La figure 8 est une vue en coupe selon VII-VII de la figure 6.
  • La figure 9 est une vue analogue à celle de la figure 6 en position de libération du câble.
  • La figure 10 est une vue en coupe d'une variante d'exécution de la troisième forme d'exécution.
The accompanying drawing shows, by way of example, three embodiments of the invention.
  • Figure 1 is a sectional view of a tensioner according to a first embodiment.
  • FIG. 2 is a perspective view of the non-return device of the tensioner shown in FIG. 1.
  • Figure 3 is a partial view similar to that of Figure 1, showing the tensioner in the release position of the winding drum.
  • Figure 4 is a partial sectional view of a second embodiment.
  • FIG. 5 illustrates an example of use on a shoe, of the tensioners shown in FIGS. 1 to 4.
  • Figure 6 is a sectional view, according to VI-VI of Figure 7, of a tensioner according to a third embodiment.
  • FIG. 7 represents, in perspective, two essential elements of the tensioner shown in FIG. 6.
  • FIG. 8 is a sectional view along VII-VII of FIG. 6.
  • Figure 9 is a view similar to that of Figure 6 in the cable release position.
  • Figure 10 is a sectional view of an alternative embodiment of the third embodiment.

Le tendeur représenté à la figure 1 se présente sous la forme d'un boîtier rectangulaire 1, en métal ou matière synthétique, dans lequel est monté un tambour 2 muni de deux flasques 3 et 4 et sur lequel est accroché l'ex­trémité d'un câble 5 traversant le boîtier 1 par un trou 6. Le flasque supérieur 4 du tambour 2 est accolé à une roue dentée 7. Le tambour 2 et la roue dentée 7 peuvent être exécutés en une seule pièce. L'ensemble est muni de deux pivots 8 et 9 engagés dans les parois du boîtier 1. La roue dentée engrène avec le pignon 10 solidaire d'un axe 11 traversant le boîtier 1 est fixé à une poignée 12 pour entraînement du pignon 10. Le pignon 10 est prolongé par une partie cylindrique 13 prolongeant coaxialement l'axe 12 et constituant un des éléments d'un dispositif d'accouplement unidirectionnel dont l'autre élément 14 est fixé au fond d'une protubé­rance cylindrique 15 du boîtier 1. A cet effet, l'élé­ment 14 est muni extérieurement de rainures longitudi­nales 16 permettant sa fixation en rotation par sertis­sage ou par surmoulage. L'élément 13 est mobile axiale­ment avec le pignon 10 et la poignée 12. Il est mainte­nu en position haute par un ressort 17 travaillant en compression dans une creusure axiale de l'élément 13, entre le fond de cette creusure et le fond 18 de la protubérance cylindrique 15. L'élément 13 est guidé dans son déplacement par un épaulement cylindrique 19.The tensioner shown in Figure 1 is in the form of a rectangular housing 1, of metal or synthetic material, in which is mounted a drum 2 provided with two flanges 3 and 4 and on which is hung the end of a cable 5 passing through the housing 1 through a hole 6. The upper flange 4 of the drum 2 is attached to a toothed wheel 7. The drum 2 and the toothed wheel 7 can be made in one piece. The assembly is provided with two pivots 8 and 9 engaged in the walls of the housing 1. The toothed wheel meshes with the pinion 10 secured to an axis 11 passing through the housing 1 is fixed to a handle 12 for driving the pinion 10. The pinion 10 is extended by a cylindrical part 13 coaxially extending the axis 12 and constituting one of the elements of a unidirectional coupling device, the other element 14 of which is fixed to the bottom of a cylindrical protuberance 15 of the housing 1. At this Indeed, the element 14 is provided externally with longitudinal grooves 16 allowing it to be fixed in rotation by crimping or by overmolding. The element 13 is axially movable with the pinion 10 and the handle 12. It is held in the high position by a spring 17 working in compression in an axial recess of the element 13, between the bottom of this recess and the bottom 18 of the cylindrical protuberance 15. The element 13 is guided in its movement by a cylindrical shoulder 19.

Le dispositif d'accouplement unidirectionnel peut être réalisé de toute manière connue. La figure 2 montre, à titre d'exemple, un dispositif d'accouplement unidirec­tionnel dans lequel l'élément 13 est muni de dents 20 définissant des logements 21 dans lesquels sont logés des rouleaux 22. Un tel dispositif est bien connu en soit. La denture 20 peut être tailliée sur l'élément 13 et mobile axialement avec cet élément ou au contraire taillée sur un cylindre fixe axialement dans lequel peut coulisser l'élément 13 solidaire en rotation par au moins une cannelure.The unidirectional coupling device can be produced in any known manner. FIG. 2 shows, by way of example, a unidirectional coupling device in which the element 13 is provided with teeth 20 defining housings 21 in which rollers 22 are housed. Such a device is well known in itself. The teeth 20 can be cut on the element 13 and axially movable with this element or on the contrary cut on an axially fixed cylinder in which the element 13 can slide, integral in rotation by at least one groove.

Lorsqu'on tourne la poignée 12 dans le sens des aiguil­les d'une montre, le pignon 10 entraîne la roue dentée 11 et par conséquent le tambour 2 sur lequel s'enroule le câble 5. Le tambour 2 ne peut pas tourner dans le sens du déroulement car il est retenu par le pignon 10 lui-même empêché de tourner dans l'autre sens par le dispositif anti-retour 13/14.When the handle 12 is turned clockwise, the pinion 10 drives the toothed wheel 11 and consequently the drum 2 on which the cable is wound 5. The drum 2 cannot rotate in the direction of the course as it is retained by the pinion 10 itself prevented from rotating in the other direction by the non-return device 13/14.

Le tambour peut toutefois être libéré instantanément par une pression sur la poignée 12, comme représenté à la figure 3. Les dents du pignon 10 sortent des dents de la roue dentée 7. Dès qu'on relâche la pression sur la poignée 12, le pignon 10 engrène à nouveau avec la roue dentée 7 et la roue dentée 7 est à nouveau retenue dans le sens du déroulement. Il est donc possible de relâcher partiellement la tension du câble 5 par une courte pression sur la poignée 12.The drum can however be released instantaneously by pressing on the handle 12, as shown in FIG. 3. The teeth of the pinion 10 come out of the teeth of the toothed wheel 7. As soon as the pressure on the handle 12 is released, the pinion 10 meshes again with the toothed wheel 7 and the toothed wheel 7 is again retained in the direction of unwinding. It is therefore possible to partially release the tension of the cable 5 by a short pressure on the handle 12.

Les fonctions enroulement et entraînement en rotation ou débrayage sont séparées, aussi bien mécaniquement que dans l'espace. Ceci permet d'avoir un boîtier mince pour le tambour 2 et la roue dentée 7, laquelle peut avoir un diamètre relativement grand par rapport au pi­gnon 10, de sorte que l'on peut avoir une grande démul­tiplication du couple d'entraînement du pignon 10, ce qui permet d'avoir une poignée 12 de petit diamètre et de faible épaisseur, c'est-à-dire d'un encombrement ré­duit à l'extérieur de la chaussure.The winding and rotary or declutching functions are separate, both mechanically and spatially. This makes it possible to have a thin housing for the drum 2 and the toothed wheel 7, which can have a relatively large diameter relative to the pinion 10, so that one can have a large reduction in the drive torque of the pinion 10 , which makes it possible to have a handle 12 of small diameter and small thickness, that is to say of a reduced bulk outside the shoe.

De nombreuses variantes d'exécution sont possibles non seulement en ce qui concerne le type de dispositif anti-retour, comme déjà signalé plus haut, mais égale­ment dans la disposition du ressort et du choix des pièces mobiles axialement. La figure 4 représente, à titre d'exemple, une deuxième forme d'exécution. La plupart des pièces de cette seconde forme d'exécution sont les mêmes que dans la première forme d'exécution et ont été désignées par les mêmes références. On se contentera donc de décrire ce qui diffère de la pre­mière forme d'exécution. L'axe 11 est prolongé au-des­sous du pignon 10 par une partie 23 de section carrée coulissant dans l'élément central d'un dispositif d'ac­couplement unidirectionnel analogue à celui représenté à la figure 2 et par conséquent solidaire en rotation de cet élément central. Un ressort 24, travaillant en compression, est monté entre le pignon 10 et l'élément central du dispositif d'accouplement unidirectionnel. Ce ressort peut s'appuyer directement sur cet élément central ou sur un couvercle fermant le dispositif d'ac­couplement unidirectionnel. Pour libérer le tambour 2 on presse également sur la poignée 12, ce qui a pour effet de dégager le pignon 10 de la roue dentée 7.Many variants are possible not only with regard to the type of non-return device, as already mentioned above, but also in the arrangement of the spring and the choice of axially movable parts. Figure 4 shows, by way of example, a second embodiment. Most of the parts of this second embodiment are the same as in the first embodiment and have been designated by the same references. We will therefore be content to describe what differs from the first embodiment. The axis 11 is extended below the pinion 10 by a part 23 of square section sliding in the central element of a unidirectional coupling device similar to that shown in Figure 2 and therefore integral in rotation with this element central. A spring 24, working in compression, is mounted between the pinion 10 and the central element of the unidirectional coupling device. This spring can rest directly on this central element or on a cover closing the unidirectional coupling device. To release the drum 2, the handle 12 is also pressed, which releases the pinion 10 from the toothed wheel 7.

Une troisième forme d'exécution sera décrite en rela­tion avec les figures 6 à 9.A third embodiment will be described in relation to FIGS. 6 to 9.

Le tendeur de câble selon cette troisième forme d'exécution comprend un tambour enrouleur 25 coaxial et venu d'une pièce avec un axe 26 à l'extrémité duquel est fixée une poignée 27. Le tambour enrouleur 25 est logé dans un boîtier 28 en forme de cuvette et son axe 26 traverse une roue 29 à denture hélicoïdale engrenant avec une vis sans fin 30 s'étendant dans le plan de la roue 29. Le boîtier 28 est fermé par un couvercle 31.The cable tensioner according to this third embodiment comprises a coaxial winding drum 25 and come in one piece with an axis 26 at the end of which is fixed a handle 27. The winding drum 25 is housed in a housing 28 in the form cup and its axis 26 passes through a wheel 29 with helical teeth meshing with an endless screw 30 extending in the plane of the wheel 29. The housing 28 is closed by a cover 31.

La face supérieure du tambour enrouleur 25 est munie d'une denture de chant 32 présentant des dents de rochet. Cette denture engrène avec une denture homologue 33 formée sur la face inférieure de la roue 29. Le tambour enrouleur 25 est maintenu contre la roue à denture hélicoïdale 29 par un ressort 34 travaillant en compression entre le fond du boîtier 28 et le fond d'une creusure centrale du tambour enrouleur 25. La vis sans fin 30 présente une partie non filetée 30a munie d'une gorge annulaire 35 dans laquelle s'engage une goupille 36 verrouillant axialement la vis sans fin 30, tout en lui permettant de tourner. L'une des extrémités de la vis sans fin 30 fait saillie hors du boîtier 28 et elle est elle-même munie d'un bouton 37, moleté ou cannelé pour l'entraînement de la vis sans fin 30.The upper face of the take-up drum 25 is provided with a toothing 32 having ratchet teeth. This toothing meshes with a homologous toothing 33 formed on the underside of the wheel 29. The winding drum 25 is held against the helical gear 29 by a spring 34 working in compression between the bottom of the housing 28 and the bottom of a central recess of the winding drum 25. The endless screw 30 has a non-threaded part 30a provided with an annular groove 35 in which engages a pin 36 axially locking the endless screw 30, while allowing it to rotate. One of the ends of the worm 30 projects from the housing 28 and is itself provided with a knurled or fluted button 37 for driving the worm 30.

La poignée 37 peut être entraînée en rotation dans le sens de l'enroulement du câble 5, c'est-à-dire dans le sens de la flèche F1, figure 7. Lors de cette rotation, les dents 32 du tambour enrouleur 25 glissent sur les dents 33 de la roue à denture hélicoïdale 29, le tam­bour enrouleur 25 s'écartant de la roue dentée 29 en comprimant le ressort 34. Les dents 32 sautent donc sur les dents 33. Le tambour d'enroulement 25 tourne donc pas à pas, un pas correspondant à une dent. En raison de la forme et des dents 32 et 33, une rotation du tam­bour enrouleur 25 dans l'autre sens n'est pas possible sans entraîner la roue 29. Or, la roue à denture héli­coïdale 29 et la vis sans fin 30 constituent un dispo­sitif anti-retour, en l'occurrence un réducteur mécani­que irréversible, car l'angle de l'hélice de la denture hélicoïdale de la roue 29 et l'angle correspondant de l'hélice de la vis sans fin 30 est inférieur à 6°.The handle 37 can be rotated in the direction of the winding of the cable 5, that is to say in the direction of the arrow F1, FIG. 7. During this rotation, the teeth 32 of the take-up drum 25 slide on the teeth 33 of the helical gear 29, the winding drum 25 moving away from the toothed wheel 29 by compressing the spring 34. The teeth 32 therefore jump on the teeth 33. The winding drum 25 therefore rotates step, a step corresponding to a tooth. Due to the shape and the teeth 32 and 33, rotation of the take-up drum 25 in the other direction is not possible without driving the wheel 29. However, the helical gear 29 and the worm 30 constitute a non-return device, in this case an irreversible mechanical reducer, because the angle of the helix of the helical toothing of the wheel 29 and the corresponding angle of the helix of the worm 30 is less than 6 ° .

Lorsque la tension sur le câble 5 devient trop forte pour qu'il soit possible ou tout simplement facile de continuer d'entraîner le tambour enrouleur 25 en rota­tion au moyen de la poignée 27, un complément de ten­sion peut être obtenu en tournant le bouton 37 de la vis sans fin 30. Le dispositif anti-retour est alors utilisé comme réducteur mécanique, c'est-à-dire multi­plicateur de force.When the tension on the cable 5 becomes too great for it to be possible or quite simply easy to continue driving the winding drum 25 in rotation by means of the handle 27, additional tension can be obtained by turning the knob 37 of the worm screw 30. The non-return device is then used as a mechanical reducer, that is to say a force multiplier.

La libération instantanée du câble 5 est obtenue par une pression P sur la poignée 27. Cette pression P a pour effet de comprimer le ressort 34 et de dégager l'une de l'autre les dentures 32 et 33, comme représen­té à la figure 9. Le tambour enrouleur 25 est par con­séquent libéré du dispositif anti-retour et il peut être entraîné librement par le câble 5.The instantaneous release of the cable 5 is obtained by a pressure P on the handle 27. This pressure P has the effect of compressing the spring 34 and releasing the teeth 32 and 33 from one another, as shown in FIG. 9 The winding drum 25 is therefore released from the non-return device and it can be driven freely by the cable 5.

La libération du tambour enrouleur 25 peut être facili­té au moyen d'un levier auxiliaire. La figure 10 montre une telle variante d'exécution. Un levier auxiliaire 38 est pivoté au moyen d'un axe 39 sur le couvercle 31. Ce levier 38 est traversé par l'axe 26 qui présente une portée 40 sur laquelle vient agir le levier 38 lors­qu'on exerce une pression P1 sur son extrémité.The release of the take-up drum 25 can be facilitated by means of an auxiliary lever. Figure 10 shows such an alternative embodiment. An auxiliary lever 38 is pivoted by means of an axis 39 on the cover 31. This lever 38 is crossed by the axis 26 which has a bearing 40 on which the lever 38 comes to act when a pressure P1 is exerted on its end .

Le tendeur de câble selon l'invention peut être monté de différentes manières sur une chaussure. La figure 5 montre un exemple d'utilisation. Le tendeur est fixé au dos de la demi-tige postérieure 41 d'une chaussure à chaussage par l'arrière. Le boîtier est à l'intérieur de cette cavité, entre la matière plastique de cette demi-tige et le rembourrage 42 recouvrant l'intérieur de cette demi-tige. Le câble 5 passe deux fois sur un répartiteur de pression 43 et son autre extrémité est fixée latéralement en 44 à la coque de la chaussure.The cable tensioner according to the invention can be mounted in different ways on a shoe. Figure 5 shows an example of use. The tensioner is fixed to the back of the rear half-upper 41 of a shoe with a rear boot. The housing is inside this cavity, between the plastic of this half-rod and the padding 42 covering the interior of this half-rod. The cable 5 passes twice over a pressure distributor 43 and its other end is fixed laterally at 44 to the shell of the shoe.

Claims (7)

1. Tendeur de câble à tambour enrouleur pour chaussure de ski, comprenant, dans un boîtier (1; 28), un tambour enrouleur (2; 25) muni d'une denture (7; 32) entraîna­ble en rotation par une poignée extérieure (12; 27) déplaçable axialement contre l'action d'un ressort, et un dispositif anti-retour (10, 13, 14; 29, 30) empê­chant le tambour de tourner dans le sens du déroule­ment, ce dispositif anti-retour étant neutralisable par une pression sur la poignée, caractérisé par le fait que le dispositif anti-retour neutralisable est constitué d'un jeu de mobiles (10, 13, 14; 29, 30) dont l'un (10; 29) engrène avec la denture du tambour enrou­leur, l'un (10; 30) de ces mobiles pouvant en outre être entraîné en rotation de l'extérieur pour l'entraî­nement du tambour enrouleur.1. Cable tensioner with reel drum for ski boot, comprising, in a housing (1; 28), a reel drum (2; 25) provided with a toothing (7; 32) rotatable by an external handle ( 12; 27) axially displaceable against the action of a spring, and a non-return device (10, 13, 14; 29, 30) preventing the drum from rotating in the direction of unwinding, this non-return device being neutralizable by pressing on the handle, characterized in that the neutralizable non-return device consists of a set of mobiles (10, 13, 14; 29, 30), one of which (10; 29) meshes with the teeth of the take-up drum, one (10; 30) of these mobiles can also be driven in rotation from the outside for driving the take-up drum. 2. Tendeur de câble selon la revendication 1, caracté­risé par le fait que le tambour enrouleur (2) est monté à côté de l'axe de la poignée (12), que la denture du tambour enrouleur (2) est une denture périphérique (7) et que le mobile engrenant avec la denture du tambour enrouleur (2) est un pignon (10) solidaire de l'axe de la poignée (12) et déplaçable axialement avec cette poignée, ce pignon (10) étant en outre solidaire d'un organe rotatif (13) coaxial coopérant avec un organe fixe (14) l'empêchant de tourner dans un sens.2. Cable tensioner according to claim 1, characterized in that the take-up drum (2) is mounted next to the axis of the handle (12), that the toothing of the take-up drum (2) is a peripheral toothing ( 7) and that the mobile meshing with the toothing of the take-up drum (2) is a pinion (10) secured to the axis of the handle (12) and axially displaceable with this handle, this pinion (10) also being secured d 'a coaxial rotary member (13) cooperating with a fixed member (14) preventing it from rotating in one direction. 3. Tendeur de câble selon revendication 2, caractérisé par le fait que l'organe rotatif (13) est formé par un prolongement de l'axe du pignon et, par conséquent, dé­plaçable axialement avec le pignon et la poignée, et que le ressort (17) agit axialement sur l'organe rotatif.3. Cable tensioner according to claim 2, characterized in that the rotary member (13) is formed by an extension of the pinion axis and, consequently, axially displaceable with the pinion and the handle, and that the spring (17) acts axially on the rotary member. 4. Tendeur de câble selon revendication 2, caractérisé par le fait que le dit organe rotatif solidaire en ro­tation de l'axe du pignon est monté coulissant sur cet axe (23) et que le ressort (24), travaillant en com­pression, est disposé entre le pignon et l'organe rotatif.4. Cable tensioner according to claim 2, characterized in that the said rotary member integral in rotation with the pinion axis is slidably mounted on this axis (23) and that the spring (24), working in compression, is disposed between the pinion and the rotating member. 5. Tendeur de câble selon revendications 3 ou 4, carac­térisé par le fait que l'organe rotatif et l'organe fixe constituent un accouplement unidirectionel.5. Cable tensioner according to claims 3 or 4, characterized in that the rotary member and the fixed member constitute a one-way coupling. 6. Tendeur de câble selon la revendication 1, caracté­risé par le fait que le tambour enrouleur (25) est so­lidaire de l'axe de la poignée (27), que la denture du tambour enrouleur (25) est une denture de chant en dents de rochet (32) et que le mobile engrenant avec la denture du tambour enrouleur est une roue dentée (29) à denture hélicoïdale munie d'une denture à dents de rochet (33) engrenant avec la denture du tambour enrou­leur sous l'action dudit ressort (34), ladite denture hélicoïdale engrenant avec une vis sans fin (30) actionnable de l'extérieur, l'angle de l'hélice de la denture hélicoïdale étant tel qu'un entraînement de la vis sans fin par la roue à denture hélicoïdale est empêché.6. Cable tensioner according to claim 1, characterized in that the take-up drum (25) is integral with the axis of the handle (27), that the toothing of the take-up drum (25) is a toothing of teeth. ratchet (32) and that the mobile meshing with the teeth of the take-up drum is a toothed wheel (29) with helical teeth provided with a toothing with ratchet teeth (33) meshing with the teeth of the take-up drum under the action of said spring (34), said helical toothing meshing with an endless screw (30) actuable from the outside, the angle of the helix of the helical toothing being such that a drive of the endless screw by the toothed wheel helical is prevented. 7. Tendeur de câble selon la revendication 6, caracté­risé par le fait qu'il comprend un levier auxiliaire (38) passant sous la poignée et s'appuyant sur une por­tée (40) de celle-ci pour la poussée axiale de l'axe de la poignée contre l'action du ressort.7. Cable tensioner according to claim 6, characterized in that it comprises an auxiliary lever (38) passing under the handle and resting on a bearing surface (40) thereof for the axial thrust of the axis of the handle against the action of the spring.
EP89810792A 1988-11-09 1989-10-20 Cable tensioner with a winding reel for a ski boot Expired - Lifetime EP0368798B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810792T ATE93691T1 (en) 1988-11-09 1989-10-20 ROPE ADJUSTER WITH WINDING DRUM FOR SKI BOOT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4163/88A CH677586A5 (en) 1988-11-09 1988-11-09
CH4163/88 1988-11-09

Publications (2)

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EP0368798A1 true EP0368798A1 (en) 1990-05-16
EP0368798B1 EP0368798B1 (en) 1993-09-01

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EP89810792A Expired - Lifetime EP0368798B1 (en) 1988-11-09 1989-10-20 Cable tensioner with a winding reel for a ski boot

Country Status (6)

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US (1) US4961544A (en)
EP (1) EP0368798B1 (en)
JP (1) JPH02180201A (en)
AT (1) ATE93691T1 (en)
CH (1) CH677586A5 (en)
DE (1) DE68908849D1 (en)

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Also Published As

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EP0368798B1 (en) 1993-09-01
DE68908849D1 (en) 1993-10-07
ATE93691T1 (en) 1993-09-15
US4961544A (en) 1990-10-09
JPH02180201A (en) 1990-07-13
CH677586A5 (en) 1991-06-14

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