EP2201856A1 - Assembly including ratchet device and belt - Google Patents

Assembly including ratchet device and belt Download PDF

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Publication number
EP2201856A1
EP2201856A1 EP09015370A EP09015370A EP2201856A1 EP 2201856 A1 EP2201856 A1 EP 2201856A1 EP 09015370 A EP09015370 A EP 09015370A EP 09015370 A EP09015370 A EP 09015370A EP 2201856 A1 EP2201856 A1 EP 2201856A1
Authority
EP
European Patent Office
Prior art keywords
band
lever
pawl
tooth
strip
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
EP09015370A
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German (de)
French (fr)
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EP2201856B1 (en
Inventor
Henri Rancon
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.)
Salomon SAS
Original Assignee
Salomon SAS
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Filing date
Publication date
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Publication of EP2201856A1 publication Critical patent/EP2201856A1/en
Application granted granted Critical
Publication of EP2201856B1 publication Critical patent/EP2201856B1/en
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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C10/00Snowboard bindings
    • A63C10/02Snowboard bindings characterised by details of the shoe holders
    • A63C10/04Shoe holders for passing over the shoe
    • A63C10/06Straps therefor, e.g. adjustable straps
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/14Clamp fastenings, e.g. strap fastenings; Clamp-buckle fastenings; Fastenings with toggle levers
    • A43C11/1406Fastenings with toggle levers; Equipment therefor
    • A43C11/142Fastenings with toggle levers with adjustment means provided for on the shoe, e.g. rack
    • A43C11/1453Fastenings with toggle levers with adjustment means provided for on the shoe, e.g. rack characterised by the shape of the teeth on the rack
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/14Clamp fastenings, e.g. strap fastenings; Clamp-buckle fastenings; Fastenings with toggle levers
    • A43C11/1406Fastenings with toggle levers; Equipment therefor
    • A43C11/146Fastenings with toggle levers with adjustment means provided for on the strap, e.g. ratchet strap
    • A43C11/1486Fastenings with toggle levers with adjustment means provided for on the strap, e.g. ratchet strap characterised by the shape of the teeth on the ratchet strap
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/21Strap tighteners
    • Y10T24/2102Cam lever and loop
    • Y10T24/2104Step adjusted
    • Y10T24/2113Strap tighteners

Definitions

  • the invention relates to an assembly comprising a ratchet clamping device and a band, as used on clothing or sports articles.
  • Such assemblies serve to reversibly tension elements such as shoe flaps, pieces of fabric, or the like.
  • Some snowboard bindings include one or more links for removably retaining a boot on a base of the binding.
  • a link generally comprises a strip, a cover, and a ratchet clamping device secured to the cover.
  • the length of the link is adjusted by moving the band relative to the hood using the device.
  • a lever of the device can shorten the link, the ratchet preventing elongation when the lever does not act.
  • the lengthening of the link, or its opening by separation of the band and the cover is obtained by acting on the pawl with a release button. This operation is an act desired by a user of the device, that is to say by a person who practices snowboarding and who wants to either reduce the tension of the link, or release a boot of a binding.
  • the band is provided with a toothing.
  • a drive end of the lever has one or more teeth provided to cooperate with the toothing of the band, in order to urge the latter in a direction of tightening or shortening of the link.
  • the pawl also cooperates with the toothing to oppose the elongation or the opening of the link.
  • one particular object of the invention is to reduce or even eliminate the wear of the toothing.
  • the invention also seeks to optimize the engagement of the drive end of the lever with the toothing of the band.
  • the invention also seeks to improve the progressive tightening of the link.
  • the invention wishes to improve the efficiency of the clamping.
  • the invention proposes an assembly comprising a clamping device and a band, the band extending in a longitudinal direction from an attachment end to a free end, the band comprising a toothing, the device comprising a base, a driving lever, and a pawl, the lever being articulated on the base, the lever comprising firstly a drive end of the strip in a first direction, and secondly a handling end , the pawl being hinged to the base, the pawl having a retention zone provided to oppose the displacement of the strip in a second direction opposite to the first direction, an elastic means permanently urging the retaining zone of the pawl towards the base.
  • the assembly according to the invention is characterized in that for at least one tooth of the toothing of the strip at least one straight line, tangent to the engagement face of the tooth and parallel to the strip, forms with the longitudinal direction of the band an angle less than 90 degrees, in that the driving end of the lever is shaped to cooperate with the toothing of the band, and in that the retaining area of the pawl is shaped to cooperate with the toothing Of the band.
  • the teeth of the toothing according to the invention for a band of width equal to that of a band according to the prior art, respectively have a longer active portion. In other words, this means that the active length of a tooth is greater than the width of the band.
  • the active surface of the tooth which is that of the contact with the driving end of the lever, is larger than for a tooth of a band according to the prior art.
  • Another advantage is related to the shape of the teeth. Indeed, following longitudinally the band, it is observed that at least a portion of a given tooth is at the height, transversely, of a portion of a subsequent tooth. This brings a gradual transition from one tooth to the other of the clamping force exerted by the lever on the band. In other words the tightening is more progressive, and requires less effort on the part of the user.
  • the clamping device comprises a release button
  • the base has a first flange and a second flange connected by a bridge
  • the lever is articulated on the base between the flanges
  • the first direction of drive is substantially parallel to the flanges and the bridge
  • the pawl is articulated on the base between the flanges
  • the resilient means biases the retaining zone of the pawl towards the bridge
  • the release button is provided to remove the retaining zone of the ratchet relative to the bridge against the action of the elastic means.
  • the release button is provided to urge the retaining zone of the pawl against the action of the elastic means.
  • This arrangement corresponds to a widespread handling standard.
  • an assembly includes a snowboard binding 1 provided for holding a boot, not shown, on a board 3.
  • the attachment 1 has a plate 4, as well as a lateral edge 5 and a medial edge 6 connected to each other by a bow 7.
  • the plate 4 extends in a longitudinal direction L1 of the attachment between a front end 8 and a rear end 9.
  • a first link 11 and a second link 12 are provided to releasably retain the boot on the attachment 1. For convenience, only the first link 11 is described below.
  • the first link 11 comprises for example a cover 13, a strip 14, and a clamping device 15 of the strip.
  • the cover 13 which comprises for example one or more layers of flexible material, extends from an attachment end 20 to a free end 21. Naturally, the attachment end 20 is secured to the medial edge 6, for example by a joint.
  • the cover 3 may comprise several sections, structured to adjust the length.
  • the band 14 extends in a longitudinal direction L14, from an attachment end 25 to a free end 26.
  • the attachment end 25 is secured to the side edge 5, for example by an articulation.
  • the band 14 here comprises a toothing 27 disposed on a core 28.
  • the toothing 27 and the core form a single piece, preferably made from a plastics material.
  • the toothing 27 comprises a series of teeth 29, arranged in a regular pitch.
  • Each tooth 29 has a gripping face 30 and an engagement face 31 provided to cooperate with the clamping device 15, as will be seen later.
  • the junction of the faces 30, 31 forms a summit ridge of the tooth 29.
  • the engagement face 30 is oriented perpendicular to the strip 14, to obtain a stable grip with other components of the clamping device 15.
  • the clamping device 15 is seen from the side on the figure 2 . It comprises a U-shaped base 33 designed to guide the strip 14.
  • the base 33 comprises a first flange 34 and a second flange 35 connected by a bridge 36.
  • the base 33 is secured to the cover 13 for example by means of an axle rivet 37, so that the device 15 is at the free end 21.
  • the clamping device 15 comprises a pawl 40 articulated along an axis 41 between the flanges 31, 32.
  • An elastic means not shown, such as a spring, constantly urges the pawl 40 so that a retaining zone 42 of the pawl is pushed towards the bridge 36.
  • the retaining zone 42 is represented in the form of a tooth.
  • a drive lever 43 comprises on the one hand a handling end 44, and on the other hand a drive end 45 provided with at least one tooth 46.
  • the drive lever 43 is articulated along an axis 47, between the flanges 34, 35.
  • An elastic means not shown, such as a spring, constantly urges the lever 43 so that the handling end 44 is pushed towards the bridge 36.
  • a release button 50 has a cam surface 51 provided to press a cam surface 52 of the pawl 40, and a handling end 53 provided to be operated by hand.
  • the release button 50 is articulated along an axis 54, between the flanges 34, 35. Note that the drive lever 43 and the release button 50 are articulated respectively along different axes 47, 54.
  • the respective axes 41, 47 and 54 of the pawl 40, the lever 43 and the button 50 are parallel to each other.
  • These axes 41, 47, 54 are oriented in a transverse direction W15 of the clamping device 15.
  • This direction W15 is parallel to the bridge 36, and merges with the transverse direction W14 of the strip 14, when the latter is introduced into the clamping device 15.
  • the transverse direction W14 of the strip 14 is parallel to the strip, and perpendicular to the longitudinal direction L14.
  • the pawl 40 opposes an elongation of the link 11. This means that the end free 26 of the band 14 can move in a direction that goes from an inner edge 56 to an outer edge 57 of the base 30.
  • the drive lever 43 is actuated, using the end 44, so that the teeth 46 drive the band 14.
  • the free end 26 of the band 14 moves in a direction that goes from the outer edge 57 to the inner edge 56. This means that the link 11 becomes shorter. The tightening of the boot becomes stronger.
  • the drive lever 43 is not loaded, its handling end 44 occupying the position closest to the bridge 36.
  • the user acts, for example with a finger, on the handling end 53 of the button release 50.
  • the cam surface 51 of the button 50 presses on the cam surface 52 of the pawl 40, so that the retaining zone 42 of the pawl 40 moves away from the bridge 36 and the web 14.
  • the link 11 can lengthen, because the pawl 40 no longer retains the band 14.
  • One advantage, induced by the structure of the clamping device 15, is that the manual action on the release button 50 tends to lengthen and open the link 11.
  • the drive end 45 of the lever 43 is shaped to cooperate with the toothing 27 of the band 14, and the retaining area 42 of the pawl 40 is shaped to cooperate with the toothing 27 of Band 14.
  • At least one tooth 29 at least a portion of the engagement face 30 is not perpendicular to the longitudinal direction L14.
  • the clamping device 15 and the band 14 of the invention provide an increased gripping surface between the driving lever 43 and the band, or between the pawl 40 and the strip.
  • the comparison is of course with similar size, that is to say for clamping devices and for bands of similar sizes. As a result, the contact pressure exerted on each tooth is reduced, whether on the belt, on the drive lever, or on the pawl.
  • the resulting benefits include reduced or insignificant tooth wear. By corollary the tops of teeth, especially when tightening the link, are rare or even nonexistent.
  • the arrangement according to the invention increases the progressivity of clamping. Again, it will be appreciated later, the friction between the band and the clamping device are reduced. This improves the clamping performance.
  • At least one line d3, d4 tangent to the engagement face 60 of the tooth 46 of the lever and parallel to the band 14, forms with the longitudinal direction L14 of the band an angle ⁇ 3, ⁇ 4 less than 90 degrees.
  • At least one line d5, d6, tangent to the engagement face 70 of the tooth 42 of the pawl and parallel to the, bade 14, forms with the longitudinal direction L14 of the band an angle ⁇ 5, ⁇ 6 less than 90 degrees.
  • Diagrams according to Figures 7 and 8 gather references relating to the band 14, the pawl 40 and the lever 43. It appears that the teeth 29, 42, 46, respectively of the band 14, the pawl 40 and the lever 43 are, for their shapes, identical or similar . It is in particular provided that the teeth 42, 46 of the pawl 40 and the lever 43 each have a shape similar to that of a tooth 29 of the strip. This allows a reliable engagement of the pawl and / or the lever with the band.
  • each tooth 29, 42, 46 of the band 14, the pawl 40 or the lever 43 has the general shape of a Vee.
  • the general shape of a tooth is that of a chevron. Thanks to this shape, the band 14 scrapes little, if any, the flanges 34, 35 of the device 15 during the tightening of the link 11. This means that the V-shape allows a centering of the strip 14 between the flanges 34 It advantageously follows that the clamping efficiency is better.
  • tooth 29 of the band 14 which is described in more detail below. It is understood, however, that what is explained for the tooth 29 of the band 14 applies to a tooth 42 of the pawl 40 or to a tooth 46 of the lever 43.
  • the engagement face 30 of the tooth 29 comprises a first facet 81 and a second facet 82.
  • Each facet 81, 83 is a straight portion of the engagement face 30.
  • the junction of the facets 81, 82 forms the tip of the vee.
  • the gripping face 30 is perpendicular to the strip 14
  • the facets 81, 82 are perpendicular to the strip. This improves the transmission of the clamping forces from the lever 43, as well as the retention of the band 14 by the catch 40.
  • the engagement face 31 is inclined, in the sense that, in the longitudinal direction L14, it 31 forms with the soul 28 an angle whose value is between 10 and 70 degrees. This is the engagement face of each tooth 29 which pushes the pawl 40 during the tightening of the link 11.
  • each tooth 29 is symmetrical transversely. This is why each tooth 29 is symmetrical transversely with respect to a central longitudinal axis, designated by the reference L14, of the strip 14.
  • L14 central longitudinal axis
  • the junction of the facets 81, 82 is halfway between a first transverse edge 83 and a second transverse edge 84 of the strip 14. This improves the clamping performance, as has been seen, but also provides greater uniformity of tightening. In fact the band 14 runs more regularly in the clamping device 15 during the action of the drive lever 43.
  • the tightening of the link 11 is therefore summarized by the regular succession of teeth taken from the band and the lever.
  • each tooth 29 of the strip 14 extends over the entire width thereof, that is to say from the first transverse edge 83 to the second 84.
  • the angle of the Vee of a tooth 29 of the band 14 is between 60 and 170 °.
  • angle values in the range of 120 to 140 ° are very suitable.
  • the angles ⁇ 1, ⁇ 2 are between 30 and 85 °.
  • the toothing 27 is symmetrical transversely, the angles ⁇ 1, ⁇ 2 have the same value.
  • each tooth 42, 46 of the pawl 40 or the lever 43 is between 60 and 170 °.
  • each tooth 42, 46 of the pawl or lever extends over the entire width respectively of the pawl or the lever.
  • each tooth 42, 46 of the pawl or the lever is symmetrical transversely, that is to say respectively with respect to a central axis perpendicular to its hinge axis 41, 47.
  • a link 11 including a cover 13, a strip 14 and a clamping device 15.
  • the latter also comprises a pawl 40, a lever 43, and a release button 50.
  • the third form is distinguished from others by the shape of the teeth 29 of the band 14.
  • the shape of the teeth of the pawl and the lever is similar to that of the band.
  • each tooth 29, 42, 46 of the band 14, the pawl 40 or the lever 43 has, in particular at the engagement face 30, the general shape of a curve.
  • it is a portion of a circle, a parabola portion, or other.
  • a curved shape gives continuity to each tooth, especially to the gripping face 30.
  • each tooth is transversely symmetrical.
  • the fourth form is distinguished from others by the shape of the teeth 29 of the band 14. Again the shape of the ratchet teeth and the lever is similar to that of the band.
  • Each tooth 29, 42, 46 of the band 14, the pawl 40 or the lever 43 has, in particular at the engagement face 30, an alternation of facets 101, 102, 103, 104. In a non-limiting manner, are arranged regularly in the transverse direction, to form two successive chevrons. The same advantages are obtained as for the first form.
  • constituent elements of the invention are manufactured using materials and techniques known to those skilled in the art.
  • a tooth may comprise several distinct sections juxtaposed.
  • a tooth may extend transversely over a range less than the width of the belt, ratchet or drive lever.
  • a tooth can be asymmetrical transversely.
  • the clamping device can comprise several pawls.
  • the drive lever 43 drives the web 14 directly.
  • the drive lever may drive the web 14 indirectly.
  • the clamping device may comprise a gearwheel disposed between the drive lever and the band.
  • the pawl can be arranged to cooperate with the toothed wheel.
  • an assembly according to the invention may comprise a binding, for example snowboard, with links.
  • at least one link comprises a clamping device and a band.
  • an assembly may comprise any shoe, which comprises a sole and a rod, the clamping device and the band being provided for tightening the rod.
  • the set may include a ski boot, a motorcycle shoe, a firefighter's shoe, a safety shoe, a military shoe, or the like.
  • the set can include a bag.

Abstract

The assembly has a tightening device (15) comprising a driving lever (43) that is articulated to a base. A driving end of the lever drives a band (14) along a direction. Straight lines (d1, d2) for a tooth (29) of teeth of the band are tangent to a meshing surface (30) of the tooth and parallel to a surface of the band to form angles (alpha1, alpha2) less than 90 degrees with a longitudinal direction (L14) of the band. The driving end of the lever cooperates with the succession of the teeth of the band. A retaining zone of a pawl cooperates with the succession of teeth of the band.

Description

L'invention se rapporte à un ensemble comprenant un dispositif de serrage à cliquet et une bande, tel qu'utilisé sur des vêtements ou des articles de sport.The invention relates to an assembly comprising a ratchet clamping device and a band, as used on clothing or sports articles.

De tels ensembles servent à tendre de façon réversible des éléments tels que des rabats de chaussure, des pièces de tissu, ou autre.Such assemblies serve to reversibly tension elements such as shoe flaps, pieces of fabric, or the like.

Un exemple d'application est donné pour le domaine du surf sur neige, ou snowboard. Certaines fixations de snowboard comprennent un ou plusieurs liens pour retenir de façon amovible une botte sur une embase de la fixation.An example of application is given for the field of snowboarding, or snowboarding. Some snowboard bindings include one or more links for removably retaining a boot on a base of the binding.

Un lien comprend généralement une bande, un capot, et un dispositif de serrage à cliquet solidarisé au capot. La longueur du lien est ajustée en déplaçant la bande par rapport au capot à l'aide du dispositif. Pour ce faire, un levier du dispositif permet de raccourcir le lien, le cliquet empêchant un allongement quand le levier n'agit pas. En cas de nécessité l'allongement du lien, ou son ouverture par séparation de la bande et du capot, est obtenu en agissant sur le cliquet à l'aide d'un bouton de libération. Cette opération est un acte voulu par un utilisateur du dispositif, c'est-à-dire par une personne qui pratique le snowboard et qui veut soit réduire la tension du lien, soit libérer une botte d'une fixation.A link generally comprises a strip, a cover, and a ratchet clamping device secured to the cover. The length of the link is adjusted by moving the band relative to the hood using the device. To do this, a lever of the device can shorten the link, the ratchet preventing elongation when the lever does not act. If necessary the lengthening of the link, or its opening by separation of the band and the cover, is obtained by acting on the pawl with a release button. This operation is an act desired by a user of the device, that is to say by a person who practices snowboarding and who wants to either reduce the tension of the link, or release a boot of a binding.

Sur la plupart des liens la bande est munie d'une denture. C'est pourquoi une extrémité d'entraînement du levier présente une ou plusieurs dents prévues pour coopérer avec la denture de la bande, dans le but de solliciter cette dernière dans un sens de serrage ou de raccourcissement du lien. Bien entendu le cliquet coopère également avec la denture pour s'opposer à l'allongement ou à l'ouverture du lien.On most links the band is provided with a toothing. This is why a drive end of the lever has one or more teeth provided to cooperate with the toothing of the band, in order to urge the latter in a direction of tightening or shortening of the link. Of course the pawl also cooperates with the toothing to oppose the elongation or the opening of the link.

Ce type de lien donne globalement satisfaction à l'usage, notamment pour sa facilité de mise en oeuvre. Cependant quelques inconvénients sont à noter.This type of link gives overall satisfaction to the use, especially for its ease of implementation. However some disadvantages are to be noted.

Par exemple on observe avec le temps une usure de la denture, notamment dans la zone qui correspond au serrage le plus fort du lien. Par corollaire il arrive parfois que la mise en prise de l'extrémité d'entraînement du levier avec la denture de la bande soit imparfaite, dans le sens où une dent peut sauter lors d'un serrage important.For example, wear is observed over time, especially in the area corresponding to the strongest tightening of the link. By corollary it sometimes happens that the engagement of the drive end of the lever with the toothing of the band is imperfect, in the sense that a tooth can jump during a large tightening.

Il a également été observé un manque de progressivité du serrage du lien, ce manque augmentant avec l'usure de la denture.It has also been observed a lack of progressive tightening of the link, this lack increasing with the wear of the toothing.

Il est apparu encore qu'avec le temps, c'est-à-dire quand l'usure augmente, l'énergie nécessaire pour provoquer le serrage s'accroît. En d'autres termes il devient plus fatigant de serrer le lien au fur et à mesure que celui-ci s'use.It also appeared that over time, that is to say when wear increases, the energy required to cause tightening increases. In other words it becomes more tiring to tighten the link as it wears out.

Par rapport à cela l'invention a notamment pour but de réduire, voire de supprimer, l'usure de la denture. L'invention cherche aussi à optimiser la mise en prise de l'extrémité d'entraînement du levier avec la denture de la bande. L'invention cherche aussi à améliorer la progressivité de serrage du lien. Enfin l'invention souhaite améliorer le rendement du serrage.In relation to this, one particular object of the invention is to reduce or even eliminate the wear of the toothing. The invention also seeks to optimize the engagement of the drive end of the lever with the toothing of the band. The invention also seeks to improve the progressive tightening of the link. Finally, the invention wishes to improve the efficiency of the clamping.

Pour ce faire l'invention propose un ensemble comprenant un dispositif de serrage et une bande, la bande s'étendant selon une direction longitudinale depuis une extrémité d'attache jusqu'à une extrémité libre, la bande comportant une denture, le dispositif comprenant une embase, un levier d'entraînement, et un cliquet, le levier étant articulé sur l'embase, le levier comprenant d'une part une extrémité d'entraînement de la bande selon une première direction, et d'autre part une extrémité de manutention, le cliquet étant articulé sur l'embase, le cliquet présentant une zone de retenue prévue pour s'opposer au déplacement de la bande selon une deuxième direction inverse à la première direction, un moyen élastique sollicitant en permanence la zone de retenue du cliquet vers l'embase.To this end, the invention proposes an assembly comprising a clamping device and a band, the band extending in a longitudinal direction from an attachment end to a free end, the band comprising a toothing, the device comprising a base, a driving lever, and a pawl, the lever being articulated on the base, the lever comprising firstly a drive end of the strip in a first direction, and secondly a handling end , the pawl being hinged to the base, the pawl having a retention zone provided to oppose the displacement of the strip in a second direction opposite to the first direction, an elastic means permanently urging the retaining zone of the pawl towards the base.

L'ensemble selon l'invention est caractérisé par le fait que pour au moins une dent de la denture de la bande au moins une droite, tangente à la face de prise de la dent et parallèle à la bande, forme avec la direction longitudinale de la bande un angle inférieur à 90 degrés, par le fait que l'extrémité d'entraînement du levier est conformée pour coopérer avec la denture de la bande, et par le fait que la zone de retenue du cliquet est conformée pour coopérer avec la denture de la bande.The assembly according to the invention is characterized in that for at least one tooth of the toothing of the strip at least one straight line, tangent to the engagement face of the tooth and parallel to the strip, forms with the longitudinal direction of the band an angle less than 90 degrees, in that the driving end of the lever is shaped to cooperate with the toothing of the band, and in that the retaining area of the pawl is shaped to cooperate with the toothing Of the band.

Les dents de la denture selon l'invention, pour une bande de largeur égale à celle d'une bande selon l'art antérieur, présentent respectivement une partie active plus longue. Cela signifie en d'autres termes que la longueur active d'une dent est supérieure à la largeur de la bande. En conséquence la surface active dé la dent, qui est celle du contact avec l'extrémité d'entraînement du levier, est plus important que pour une dent d'une bande selon l'art antérieur.The teeth of the toothing according to the invention, for a band of width equal to that of a band according to the prior art, respectively have a longer active portion. In other words, this means that the active length of a tooth is greater than the width of the band. As a result, the active surface of the tooth, which is that of the contact with the driving end of the lever, is larger than for a tooth of a band according to the prior art.

Il s'ensuit que la pression de contact exercée sur une dent, notamment pendant le serrage de l'ensemble, est réduite. Bien entendu la réduction est à considérer par rapport à un ensemble muni d'un dispositif selon l'art antérieur.It follows that the contact pressure exerted on a tooth, especially during tightening of the assembly, is reduced. Of course the reduction is to be considered with respect to an assembly provided with a device according to the prior art.

Parmi les avantages qui en découlent on peut citer notamment une forte réduction de l'usure de la denture. Dans le même esprit l'usure de l'extrémité d'entraînement du levier est elle aussi réduite. Par corollaire la mise en prise de l'extrémité d'entraînement du levier avec la denture de la bande est optimisée, dans le sens où la pression de contact réduite évite les sauts de dents.Among the advantages that result therein include a strong reduction in wear of the toothing. In the same spirit the wear of the drive end of the lever is also reduced. As a corollary, the engagement of the drive end of the lever with the toothing of the band is optimized, in the sense that the reduced contact pressure prevents tooth jumps.

Un autre avantage est lié à la forme des dents. En effet, en suivant longitudinalement la bande, on observe qu'au moins une partie d'une dent donnée est à la hauteur, transversalement, d'une partie d'une dent subséquente. Cela apporte une transition progressive d'une dent à l'autre de l'effort de serrage exercé par le levier sur la bande. En d'autres termes le serrage est plus progressif, et nécessite moins d'efforts de la part de l'utilisateur.Another advantage is related to the shape of the teeth. Indeed, following longitudinally the band, it is observed that at least a portion of a given tooth is at the height, transversely, of a portion of a subsequent tooth. This brings a gradual transition from one tooth to the other of the clamping force exerted by the lever on the band. In other words the tightening is more progressive, and requires less effort on the part of the user.

On observe aussi une amélioration du rendement du serrage, car les pressions réduites diminuent les frottements du levier sur la bande.An improvement in the tightening efficiency is also observed, because the reduced pressures reduce the friction of the lever on the strip.

On verra par la suite que, dans certains cas, le dispositif de serrage comprend un bouton de libération, l'embase présente un premier flasque et un deuxième flasque reliés par un pont, le levier est articulé sur l'embase entre les flasques, la première direction d'entraînement est sensiblement parallèle aux flasques et au pont, le cliquet est articulé sur l'embase entre les flasques, le moyen élastique sollicite la zone de retenue du cliquet vers le pont, et le bouton de libération est prévu pour éloigner la zone de retenue du cliquet par rapport au pont contre l'action du moyen élastique. De manière plus large le bouton de libération est prévu pour solliciter la zone de retenue du cliquet contre l'action du moyen élastique.It will be seen later that, in some cases, the clamping device comprises a release button, the base has a first flange and a second flange connected by a bridge, the lever is articulated on the base between the flanges, the first direction of drive is substantially parallel to the flanges and the bridge, the pawl is articulated on the base between the flanges, the resilient means biases the retaining zone of the pawl towards the bridge, and the release button is provided to remove the retaining zone of the ratchet relative to the bridge against the action of the elastic means. In a wider manner the release button is provided to urge the retaining zone of the pawl against the action of the elastic means.

Cet agencement correspond à un standard de manipulation très répandu.This arrangement corresponds to a widespread handling standard.

D'autres caractéristiques et avantages de l'invention seront mieux compris à l'aide de la description qui va suivre, en regard du dessin annexé illustrant, par des formes de réalisation non limitatives, comment l'invention peut être réalisée, et dans lequel :

  • la figure 1 est une vue en perspective d'une fixation de snowboard munie de liens, selon une première forme de réalisation de l'invention,
  • la figure 2 est une vue partielle de côté d'un premier lien de la fixation de la figure 1,
  • la figure 3 est une coupe du premier lien selon III-III de la figure 1,
  • la figure 4 est une coupe similaire à la figure 3, dans un cas où un dispositif de serrage entraîne une bande,
  • la figure 5 est une coupe similaire à la figure 3, dans un cas où le dispositif libère la bande,
  • la figure 6 st un agrandissement partiel de la figure 1 qui montre mieux le dispositif, dans un cas où ce dernier retient la bande,
  • la figure 7 est une vue schématique par-dessus de la bande du premier lien, dans un cas où elle est sollicitée par deux dents d'un levier d'entraînement du dispositif, et où un cliquet autorise l'avancement de la bande,
  • la figure 8 est similaire à la figure 7, dans un cas où la bande est sollicitée par une seule dent du levier d'entraînement et où le cliquet du dispositif s'oppose au recul de la bande,
  • la figure 9 est similaire à la figure 3, selon une deuxième forme de réalisation de l'invention,
  • la figure 10 est une vue schématique par-dessus d'une bande, selon une troisième forme de réalisation de l'invention,
  • la figure 11 est une vue schématique par-dessus d'une bande, selon une quatrième forme de réalisation de l'invention.
Other features and advantages of the invention will be better understood from the following description, with reference to the accompanying drawing illustrating, by non-limiting embodiments, how the invention can be realized, and wherein :
  • the figure 1 is a perspective view of a snowboard binding provided with links, according to a first embodiment of the invention,
  • the figure 2 is a partial side view of a first link of the fixing of the figure 1 ,
  • the figure 3 is a section of the first link according to III-III of the figure 1 ,
  • the figure 4 is a cut similar to the figure 3 in a case where a clamping device causes a band,
  • the figure 5 is a cut similar to the figure 3 in a case where the device releases the band,
  • the figure 6 is a partial enlargement of the figure 1 which shows better the device, in a case where the latter retains the band,
  • the figure 7 is a schematic view over the band of the first link, in a case where it is solicited by two teeth of a drive lever of the device, and where a pawl allows the advancement of the band,
  • the figure 8 is similar to the figure 7 in a case where the band is solicited by a single tooth of the drive lever and where the pawl of the device opposes the retreat of the band,
  • the figure 9 is similar to the figure 3 according to a second embodiment of the invention,
  • the figure 10 is a schematic view over a strip, according to a third embodiment of the invention,
  • the figure 11 is a schematic view over a strip according to a fourth embodiment of the invention.

Si la description qui suit présente des ensembles utilisés dans le domaine du snowboard, il doit être compris que l'invention s'applique à d'autres domaines comme il a été dit avant.If the following description presents sets used in the field of snowboarding, it should be understood that the invention applies to other fields as it has been said before.

La première forme de réalisation est décrite ci-après à l'aide des figures 1 à 8.The first embodiment is described below using the Figures 1 to 8 .

Tel que montré à la figure 1, un ensemble comprend une fixation de snowboard 1 prévue pour retenir une botte, non représentée, sur une planche 3.As shown in figure 1 , an assembly includes a snowboard binding 1 provided for holding a boot, not shown, on a board 3.

De manière connue, la fixation 1 présente une platine 4, ainsi qu'un bord latéral 5 et un bord médial 6 reliés l'un à l'autre par un arceau 7.In known manner, the attachment 1 has a plate 4, as well as a lateral edge 5 and a medial edge 6 connected to each other by a bow 7.

La platine 4 s'étend selon une direction longitudinale L1 de la fixation entre une extrémité avant 8 et une extrémité arrière 9.The plate 4 extends in a longitudinal direction L1 of the attachment between a front end 8 and a rear end 9.

Un premier lien 11 et un deuxième lien 12 sont prévus pour retenir de façon amovible la botte sur la fixation 1. Pour des raisons de commodité, seul le premier lien 11 est décrit ci-après.A first link 11 and a second link 12 are provided to releasably retain the boot on the attachment 1. For convenience, only the first link 11 is described below.

De façon non limitative, le premier lien 11 comprend par exemple un capot 13, une bande 14, et un dispositif de serrage 15 de la bande.Without limitation, the first link 11 comprises for example a cover 13, a strip 14, and a clamping device 15 of the strip.

Le capot 13, qui comprend par exemple une ou plusieurs couches de matière souple, s'étend depuis une extrémité d'attache 20 jusqu'à une extrémité libre 21. Bien entendu l'extrémité d'attache 20 est solidarisée au bord médial 6, par exemple par une articulation. Le capot 3 peut comprendre plusieurs tronçons, structurés pour en ajuster la longueur.The cover 13, which comprises for example one or more layers of flexible material, extends from an attachment end 20 to a free end 21. Naturally, the attachment end 20 is secured to the medial edge 6, for example by a joint. The cover 3 may comprise several sections, structured to adjust the length.

La bande 14 quant à elle s'étend selon une direction longitudinale L14, depuis une extrémité d'attache 25 jusqu'à une extrémité libre 26. Dans ce cas l'extrémité d'attache 25 est solidarisée au bord latéral 5, par exemple par une articulation.The band 14 extends in a longitudinal direction L14, from an attachment end 25 to a free end 26. In this case the attachment end 25 is secured to the side edge 5, for example by an articulation.

La bande 14 comporte ici une denture 27, disposée sur une âme 28. La denture 27 et l'âme forment une pièce monobloc, faite de préférence à partir d'une matière plastiques. La denture 27 comprend une suite de dents 29, disposées selon un pas régulier. Chaque dent 29 présente une face de prise 30 et une face d'engagement 31 prévues pour coopérer avec le dispositif de serrage 15, comme on le verra par la suite. La jonction des faces 30, 31 forme une arête sommitale de la dent 29. La face de prise 30 est orientée perpendiculairement à la bande 14, pour obtenir une prise stable avec d'autres composants du dispositif de serrage 15.The band 14 here comprises a toothing 27 disposed on a core 28. The toothing 27 and the core form a single piece, preferably made from a plastics material. The toothing 27 comprises a series of teeth 29, arranged in a regular pitch. Each tooth 29 has a gripping face 30 and an engagement face 31 provided to cooperate with the clamping device 15, as will be seen later. The junction of the faces 30, 31 forms a summit ridge of the tooth 29. The engagement face 30 is oriented perpendicular to the strip 14, to obtain a stable grip with other components of the clamping device 15.

La structure et le fonctionnement du dispositif 15 sont expliqués ci-après à l'aide des figures 2 à 8.The structure and operation of the device 15 are explained below using the Figures 2 to 8 .

Le dispositif de serrage 15 est vu de côté sur la figure 2. Il comprend une embase 33 en forme du U prévue pour guider la bande 14. L'embase 33 comprend un premier flasque 34 et un deuxième flasque 35 reliés par un pont 36.The clamping device 15 is seen from the side on the figure 2 . It comprises a U-shaped base 33 designed to guide the strip 14. The base 33 comprises a first flange 34 and a second flange 35 connected by a bridge 36.

L'embase 33 est solidarisée au capot 13 par exemple à l'aide d'un rivet d'axe 37, de façon que le dispositif 15 se trouve au niveau de l'extrémité libre 21.The base 33 is secured to the cover 13 for example by means of an axle rivet 37, so that the device 15 is at the free end 21.

Comme le montre la figure 3, le dispositif de serrage 15 comprend un cliquet 40 articulé selon un axe 41 entre les flasques 31, 32. Un moyen élastique non représenté, tel qu'un ressort, sollicite en permanence le cliquet 40 de façon qu'une zone de retenue 42 du cliquet soit poussée vers le pont 36. La zone de retenue 42 est représentée sous la forme d'une dent.As shown in figure 3 , the clamping device 15 comprises a pawl 40 articulated along an axis 41 between the flanges 31, 32. An elastic means, not shown, such as a spring, constantly urges the pawl 40 so that a retaining zone 42 of the pawl is pushed towards the bridge 36. The retaining zone 42 is represented in the form of a tooth.

Un levier d'entraînement 43 comprend d'une part une extrémité de manutention 44, et d'autre part une extrémité d'entraînement 45 munie d'au moins une dent 46. Le levier d'entraînement 43 est articulé selon un axe 47, entre les flasques 34, 35. Un moyen élastique non représenté, tel qu'un ressort, sollicite en permanence le levier 43 de façon que l'extrémité de manutention 44 soit poussée vers le pont 36.A drive lever 43 comprises on the one hand a handling end 44, and on the other hand a drive end 45 provided with at least one tooth 46. The drive lever 43 is articulated along an axis 47, between the flanges 34, 35. An elastic means, not shown, such as a spring, constantly urges the lever 43 so that the handling end 44 is pushed towards the bridge 36.

Un bouton de libération 50 présente une surface de came 51 prévue pour appuyer sur une surface de came 52 du cliquet 40, et une extrémité de manutention 53 prévue pour être actionnée à la main. Le bouton de libération 50 est articulé selon un axe 54, entre les flasques 34, 35. On remarque que le levier d'entraînement 43 et le bouton de libération 50 sont articulés respectivement selon des axes 47, 54 différents.A release button 50 has a cam surface 51 provided to press a cam surface 52 of the pawl 40, and a handling end 53 provided to be operated by hand. The release button 50 is articulated along an axis 54, between the flanges 34, 35. Note that the drive lever 43 and the release button 50 are articulated respectively along different axes 47, 54.

Globalement, selon la première forme de réalisation de l'invention, les axes respectifs 41, 47 et 54 du cliquet 40, du levier 43 et du bouton 50 sont parallèles entre-eux. Ces axes 41, 47, 54 sont orientés selon une direction transversale W15 du dispositif de serrage 15. Cette direction W15 est parallèle au pont 36, et se confond avec la direction transversale W14 de la bande 14, lorsque cette dernière est introduite dans le dispositif de serrage 15. Bien entendu la direction transversale W14 de la bande 14 est parallèle à la bande, et perpendiculaire à la direction longitudinale L14.Overall, according to the first embodiment of the invention, the respective axes 41, 47 and 54 of the pawl 40, the lever 43 and the button 50 are parallel to each other. These axes 41, 47, 54 are oriented in a transverse direction W15 of the clamping device 15. This direction W15 is parallel to the bridge 36, and merges with the transverse direction W14 of the strip 14, when the latter is introduced into the clamping device 15. Of course the transverse direction W14 of the strip 14 is parallel to the strip, and perpendicular to the longitudinal direction L14.

En l'absence de toute sollicitation extérieure, les pièces constitutives du dispositif de serrage 15 occupent chacun la position comme il est montré sur la figure 3.In the absence of any external stress, the component parts of the clamping device 15 each occupy the position as shown in FIG. figure 3 .

Comme la bande 14 est présente le long du pont 36 entre les flasques 34, 35, c'est-à-dire dans l'embase 33, le cliquet 40 s'oppose à un allongement du lien 11. Cela signifie que l'extrémité libre 26 de la bande 14 ne peut se déplacer, dans un sens qui va d'une arête interne 56 vers une arête externe 57 de l'embase 30.As the strip 14 is present along the bridge 36 between the flanges 34, 35, that is to say in the base 33, the pawl 40 opposes an elongation of the link 11. This means that the end free 26 of the band 14 can move in a direction that goes from an inner edge 56 to an outer edge 57 of the base 30.

Un déplacement dans le sens inverse est par contre possible. Ce déplacement peut être provoqué par l'utilisateur comme c'est le cas à la figure 4.On the other hand, a movement in the opposite direction is possible. This displacement can be caused by the user as is the case figure 4 .

Le levier d'entraînement 43 est actionné, à l'aide de l'extrémité 44, de façon que les dents 46 entraînent la bande 14. Dans ce cas l'extrémité libre 26 de la bande 14 se déplace dans un sens qui va de l'arête externe 57 vers l'arête interne 56. Cela signifie que le lien 11 devient plus court. Le serrage de la botte devient plus fort.The drive lever 43 is actuated, using the end 44, so that the teeth 46 drive the band 14. In this case the free end 26 of the band 14 moves in a direction that goes from the outer edge 57 to the inner edge 56. This means that the link 11 becomes shorter. The tightening of the boot becomes stronger.

A l'inverse si l'utilisateur veut desserrer le lien, ou même libérer la botte en ouvrant le lien, il lui suffit de procéder comme il est montré à la figure 5.Conversely, if the user wants to loosen the link, or even release the boot by opening the link, he just has to proceed as shown in the figure 5 .

Dans ce cas le levier d'entraînement 43 n'est pas sollicité, son extrémité de manutention 44 occupant la position la plus proche du pont 36. L'utilisateur agit, par exemple avec un doigt, sur l'extrémité de manutention 53 du bouton de libération 50.In this case the drive lever 43 is not loaded, its handling end 44 occupying the position closest to the bridge 36. The user acts, for example with a finger, on the handling end 53 of the button release 50.

La surface de came 51 du bouton 50 appuie sur la surface de came 52 du cliquet 40, de façon que la zone de retenue 42 du cliquet 40 s'éloigne du pont 36 et de la bande 14. Le lien 11 peut s'allonger, car le cliquet 40 ne retient plus la bande 14.The cam surface 51 of the button 50 presses on the cam surface 52 of the pawl 40, so that the retaining zone 42 of the pawl 40 moves away from the bridge 36 and the web 14. The link 11 can lengthen, because the pawl 40 no longer retains the band 14.

Bien entendu, dès que l'action du bouton 50 cesse, le cliquet 40 reprend une position de retenue.Of course, as soon as the action of the button 50 ceases, the pawl 40 resumes a retaining position.

Un avantage, induit par la structure du dispositif de serrage 15, est que l'action manuelle sur le bouton de libération 50 tend à allonger et à ouvrir le lien 11.One advantage, induced by the structure of the clamping device 15, is that the manual action on the release button 50 tends to lengthen and open the link 11.

Selon l'invention, comme on le comprend notamment à l'aide des figures 1 et 6 à 8, pour au moins une dent 29 de la denture 27 de la bande 14, au moins une droite d1, d2, tangente à la face de prise 30 de la dent 29 et parallèle à la bande 14, forme avec la direction longitudinale L14 de la bande un angle α1, α2 inférieur à 90 degré, l'extrémité d'entraînement 45 du levier 43 est conformée pour coopérer avec la denture 27 de la bande 14, et la zone de retenue 42 du cliquet 40 est conformée pour coopérer avec la denture 27 de la bande 14.According to the invention, as is understood in particular by means of figures 1 and 6 to 8 for at least one tooth 29 of the toothing 27 of the strip 14, at least one straight line d1, d2, tangent to the engagement face 30 of the tooth 29 and parallel to the strip 14, forms with the longitudinal direction L14 of the band an angle α1, α2 less than 90 degrees, the drive end 45 of the lever 43 is shaped to cooperate with the toothing 27 of the band 14, and the retaining area 42 of the pawl 40 is shaped to cooperate with the toothing 27 of Band 14.

On peut dire aussi que pour au moins une dent 29 au moins une portion de la face de prise 30 n'est pas perpendiculaire à la direction longitudinale L14.It can also be said that for at least one tooth 29 at least a portion of the engagement face 30 is not perpendicular to the longitudinal direction L14.

Par rapport à un lien selon l'art antérieur, le dispositif de serrage 15 et la bande 14 de l'invention apportent une surface de prise accrue entre le levier d'entraînement 43 et la bande, ou entre le cliquet 40 et la bande. La comparaison se fait bien sûr à encombrement similaire, c'est-à-dire pour des dispositifs de serrage et pour des bandes de tailles semblables. En conséquence la pression de contact exercée sur chaque dent est réduite, que ce soit sur la bande, sur le levier d'entraînement, ou encore sur le cliquet.With respect to a link according to the prior art, the clamping device 15 and the band 14 of the invention provide an increased gripping surface between the driving lever 43 and the band, or between the pawl 40 and the strip. The comparison is of course with similar size, that is to say for clamping devices and for bands of similar sizes. As a result, the contact pressure exerted on each tooth is reduced, whether on the belt, on the drive lever, or on the pawl.

Parmi les avantages qui en découlent, on évoque l'usure réduite, voire insignifiante, des dents. Par corollaire les sauts de dents, notamment lors d'un serrage du lien, sont rares ou même inexistants. De plus l'agencement selon l'invention accroît la progressivité de serrage. Encore, on l'appréciera plus par la suite, les frottements entre la bande et le dispositif de serrage sont réduits. Cela améliore le rendement de serrage.The resulting benefits include reduced or insignificant tooth wear. By corollary the tops of teeth, especially when tightening the link, are rare or even nonexistent. In addition, the arrangement according to the invention increases the progressivity of clamping. Again, it will be appreciated later, the friction between the band and the clamping device are reduced. This improves the clamping performance.

Selon la première forme de réalisation de l'invention, pour une dent 46 du levier 43 au contact de la denture 27 de la bande 14, au moins une droite d3, d4, tangente à la face de prise 60 de la dent 46 du levier et parallèle à la bande 14, forme avec la direction longitudinale L14 de la bande un angle α3, α4 inférieur à 90 degrés.According to the first embodiment of the invention, for a tooth 46 of the lever 43 in contact with the toothing 27 of the band 14, at least one line d3, d4, tangent to the engagement face 60 of the tooth 46 of the lever and parallel to the band 14, forms with the longitudinal direction L14 of the band an angle α3, α4 less than 90 degrees.

Dans le même esprit, pour une dent 42 du cliquet 40 au contact de la denture 27 de la bande 14, au moins une droite d5, d6, tangente à la face de prise 70 de la dent 42 du cliquet et parallèle à la, bade 14, forme avec la direction longitudinale L14 de la bande un angle α5, α6 inférieur à 90 degrés.In the same spirit, for a tooth 42 of the pawl 40 in contact with the toothing 27 of the strip 14, at least one line d5, d6, tangent to the engagement face 70 of the tooth 42 of the pawl and parallel to the, bade 14, forms with the longitudinal direction L14 of the band an angle α5, α6 less than 90 degrees.

Les schémas selon les figures 7 et 8 rassemblent des références qui concernent la bande 14, le cliquet 40 et le levier 43. Il apparaît que les dents 29, 42, 46, respectivement de la bande 14, du cliquet 40 et du levier 43 sont, pour leurs formes, identiques ou similaires. Il est notamment prévu que les dents 42, 46 du cliquet 40 et du levier 43 présentent chacune une forme semblable à celle d'une dent 29 de la bande. Cela permet une mise en prise fiable du cliquet et/ou du levier avec la bande.Diagrams according to Figures 7 and 8 gather references relating to the band 14, the pawl 40 and the lever 43. It appears that the teeth 29, 42, 46, respectively of the band 14, the pawl 40 and the lever 43 are, for their shapes, identical or similar . It is in particular provided that the teeth 42, 46 of the pawl 40 and the lever 43 each have a shape similar to that of a tooth 29 of the strip. This allows a reliable engagement of the pawl and / or the lever with the band.

Selon la première forme de réalisation de l'invention, de manière non limitative, chaque dent 29, 42, 46, de la bande 14, du cliquet 40 ou du levier 43, présente la forme générale d'un Vé. En d'autres termes la forme générale d'une dent est celle d'un chevron. Grâce à cette forme la bande 14 frotte peu, voire pas du tout, les flasques 34, 35 du dispositif 15 pendant le serrage du lien 11. Cela revient à dire que la forme en Vé permet un centrage de la bande 14 entre les flasques 34, 35. Il s'ensuit avantageusement que le rendement de serrage est meilleur.According to the first embodiment of the invention, without limitation, each tooth 29, 42, 46 of the band 14, the pawl 40 or the lever 43, has the general shape of a Vee. In other words, the general shape of a tooth is that of a chevron. Thanks to this shape, the band 14 scrapes little, if any, the flanges 34, 35 of the device 15 during the tightening of the link 11. This means that the V-shape allows a centering of the strip 14 between the flanges 34 It advantageously follows that the clamping efficiency is better.

Pour des raisons de commodité, c'est une dent 29 de la bande 14 qui est décrite plus en détail ci-après. Il est bien entendu cependant que ce qui est expliqué pour la dent 29 de la bande 14 s'applique à une dent 42 du cliquet 40 ou à une dent 46 du levier 43.For the sake of convenience, it is a tooth 29 of the band 14 which is described in more detail below. It is understood, however, that what is explained for the tooth 29 of the band 14 applies to a tooth 42 of the pawl 40 or to a tooth 46 of the lever 43.

Comme il apparaît notamment sur les figures 7 et 8, la face de prise 30 de la dent 29 comprend une première facette 81 et une deuxième facette 82. Chaque facette 81, 83 est une portion droite de la face de prise 30. Bien entendu la jonction des facettes 81, 82 forme la pointe du Vé. Etant donné que la face de prise 30 est perpendiculaire à la bande 14, les facettes 81, 82 sont perpendiculaires à la bande. Cela améliore la transmission des efforts de serrage issus du levier 43, ainsi que la retenue de la bande 14 par le cliquet 40. Par corollaire la face d'engagement 31 est en pente, dans le sens où, selon la direction longitudinale L14, elle 31 forme avec l'âme 28 un angle dont la valeur est comprise entre 10 et 70 degrés. C'est la face d'engagement de chaque dent 29 qui écarte le cliquet 40 pendant le serrage du lien 11.As it appears in particular on Figures 7 and 8 , the engagement face 30 of the tooth 29 comprises a first facet 81 and a second facet 82. Each facet 81, 83 is a straight portion of the engagement face 30. Of course the junction of the facets 81, 82 forms the tip of the vee. Since the gripping face 30 is perpendicular to the strip 14, the facets 81, 82 are perpendicular to the strip. This improves the transmission of the clamping forces from the lever 43, as well as the retention of the band 14 by the catch 40. By corollary, the engagement face 31 is inclined, in the sense that, in the longitudinal direction L14, it 31 forms with the soul 28 an angle whose value is between 10 and 70 degrees. This is the engagement face of each tooth 29 which pushes the pawl 40 during the tightening of the link 11.

Il est prévu, de manière non limitative, que la denture 27 soit symétrique transversalement. C'est pourquoi chaque dent 29 est symétrique transversalement par rapport à un axe longitudinal central, désigné par la référence L14, de la bande 14. Par corollaire la jonction des facettes 81, 82 est à mi-chemin entre un premier bord transversal 83 et un deuxième bord transversal 84 de la bande 14. Cela améliore le rendement de serrage, comme on l'a vu, mais apporte aussi une plus grande régularité de serrage. En fait la bande 14 défile plus régulièrement dans le dispositif de serrage 15 pendant l'action du levier d'entraînement 43.It is provided, without limitation, that the toothing 27 is symmetrical transversely. This is why each tooth 29 is symmetrical transversely with respect to a central longitudinal axis, designated by the reference L14, of the strip 14. By corollary, the junction of the facets 81, 82 is halfway between a first transverse edge 83 and a second transverse edge 84 of the strip 14. This improves the clamping performance, as has been seen, but also provides greater uniformity of tightening. In fact the band 14 runs more regularly in the clamping device 15 during the action of the drive lever 43.

En effet lors d'une phase intermédiaire de l'entraînement de la bande 14 par le levier 43, comme on l'observe sur la figure 7, des portions latérales 91, 92 d'une dent 46 de référence du levier 43 sont en prise avec une dent 29 de référence de la bande 14, pendant qu'une portion centrale 93 d'une dent 46 voisine du levier 43 est en prise avec une dent 29 voisine de la bande 14. Au total c'est toujours la totalité de la surface utile d'une face de prise 30, 60 qui est utilisée, sachant que cette surface utile est répartie sur deux dents 29, 46 voisines.Indeed during an intermediate phase of the drive of the band 14 by the lever 43, as seen on the figure 7 , lateral portions 91, 92 of a reference tooth 46 of the lever 43 are engaged with a reference tooth 29 of the band 14, while a central portion 93 of a tooth 46 adjacent the lever 43 is engaged with a tooth 29 close to the band 14. In total it is always the entire useful area of a gripping face 30, 60 is used, knowing that this useful area is distributed on two teeth 29, 46 neighbors.

Lors d'une autre phase intermédiaire de l'entraînement de la bande 14, comme on le voit sur la figure 8, c'est l'intégralité d'une dent 46 du levier 43 qui est en prise avec une dent 29 de la bande 14. Là encore c'est la totalité de la surface utile d'une face de prise 30, 60 qui est utilisée.In another intermediate phase of the training of the band 14, as seen on the figure 8 it is the entirety of a tooth 46 of the lever 43 which is engaged with a tooth 29 of the strip 14. Here again it is the whole of the effective surface of a gripping face 30, 60 which is used.

Le serrage du lien 11 se résume donc par la succession régulière de prises de dents de la bande et du levier.The tightening of the link 11 is therefore summarized by the regular succession of teeth taken from the band and the lever.

On remarque que chaque dent 29 de la bande 14 s'étend sur toute la largeur de celle-ci, c'est-à-dire depuis le premier bord transversal 83 jusqu'au deuxième 84.Note that each tooth 29 of the strip 14 extends over the entire width thereof, that is to say from the first transverse edge 83 to the second 84.

L'angle du Vé d'une dent 29 de la bande 14 est compris entre 60 et 170°. Par exemple des valeurs d'angle selon une plage de 120 à 140° conviennent très bien. Par corollaire les angles α1, α2 sont compris entre 30 et 85°. Comme la denture 27 est symétrique transversalement, les angles α1, α2 ont la même valeur.The angle of the Vee of a tooth 29 of the band 14 is between 60 and 170 °. For example, angle values in the range of 120 to 140 ° are very suitable. By corollary the angles α1, α2 are between 30 and 85 °. As the toothing 27 is symmetrical transversely, the angles α1, α2 have the same value.

Par corollaire avec ce qui précède, l'angle du Vé d'une dent 42, 46 du cliquet 40 ou du levier 43 est compris entre 60 et 170°. Aussi, chaque dent 42, 46 du cliquet ou du levier s'étend sur toute la largeur respectivement du cliquet ou du levier. Encore, chaque dent 42, 46 du cliquet ou du levier est symétrique transversalement, c'est-à-dire respectivement par rapport à un axe central perpendiculaire à son axe d'articulation 41, 47.As a corollary with the above, the angle of the Vee of a tooth 42, 46 of the pawl 40 or the lever 43 is between 60 and 170 °. Also, each tooth 42, 46 of the pawl or lever extends over the entire width respectively of the pawl or the lever. Again, each tooth 42, 46 of the pawl or the lever is symmetrical transversely, that is to say respectively with respect to a central axis perpendicular to its hinge axis 41, 47.

Les autres formes de réalisation de l'invention sont décrites ci-après à l'aide des figures 9 à 11. Pour des raisons de commodité, les éléments communs avec la première forme sont désignés par les mêmes références.The other embodiments of the invention are described below with the help of Figures 9 to 11 . For the sake of convenience, the elements common with the first form are designated by the same references.

Ainsi pour la deuxième forme de réalisation, selon la figure 9, on retrouve un lien 11 avec notamment un capot 13, une bande 14 et un dispositif de serrage 15. Ce dernier comprend lui aussi un cliquet 40, un levier 43, et un bouton de libération 50.So for the second embodiment, according to the figure 9 , there is a link 11 including a cover 13, a strip 14 and a clamping device 15. The latter also comprises a pawl 40, a lever 43, and a release button 50.

Ce qui est spécifique à la deuxième forme de réalisation, c'est que le levier d'entraînement 43 et le bouton de libération 50 sont articulés selon le même axe 47. Cette disposition simplifie la structure du dispositif de serrage 15.What is specific to the second embodiment is that the drive lever 43 and the release button 50 are articulated along the same axis 47. This arrangement simplifies the structure of the clamping device 15.

La troisième forme, selon la figure 10, se distingue des autres par la forme des dents 29 de la bande 14. Bien entendu la forme des dents du cliquet et du levier est semblable à celle de la bande. En fait chaque dent 29, 42, 46, de la bande 14, du cliquet 40 ou du levier 43 présente, notamment au niveau de la face de prise 30, la forme générale d'une courbe. Par exemple il s'agit d'une portion de cercle, d'une portion de parabole, ou autre. Une forme incurvée donne une continuité à chaque dent, notamment à la face de prise 30. Là encore chaque dent est symétrique transversalement.The third form, according to the figure 10 , is distinguished from others by the shape of the teeth 29 of the band 14. Of course the shape of the teeth of the pawl and the lever is similar to that of the band. In fact each tooth 29, 42, 46 of the band 14, the pawl 40 or the lever 43 has, in particular at the engagement face 30, the general shape of a curve. For example it is a portion of a circle, a parabola portion, or other. A curved shape gives continuity to each tooth, especially to the gripping face 30. Again, each tooth is transversely symmetrical.

La quatrième forme, selon la figure 11, se distingue des autres par la forme des dents 29 de la bande 14. A nouveau la forme des dents du cliquet et du levier est semblable à celle de la bande. Chaque dent 29, 42, 46, de la bande 14, du cliquet 40 ou du levier 43 présente, notamment au niveau de la face de prise 30, une alternance de facettes 101, 102, 103, 104. De manière non limitative ces dernières sont disposées régulièrement, en direction transversale, pour former deux chevrons successifs. On obtient les mêmes avantages que pour la première forme.The fourth form, according to the figure 11 , is distinguished from others by the shape of the teeth 29 of the band 14. Again the shape of the ratchet teeth and the lever is similar to that of the band. Each tooth 29, 42, 46 of the band 14, the pawl 40 or the lever 43 has, in particular at the engagement face 30, an alternation of facets 101, 102, 103, 104. In a non-limiting manner, are arranged regularly in the transverse direction, to form two successive chevrons. The same advantages are obtained as for the first form.

D'une manière générale les éléments constitutifs de l'invention sont fabriqués avec des matériaux et selon des techniques connus de l'homme du métier.In general, the constituent elements of the invention are manufactured using materials and techniques known to those skilled in the art.

Bien entendu, l'invention n'est pas limitée aux formes de réalisation ci-avant décrites, et comprend tous les équivalents techniques pouvant entrer dans la portée des revendications qui vont suivre.Of course, the invention is not limited to the embodiments described above, and includes all technical equivalents that fall within the scope of the claims that follow.

Par exemple d'autres formes de dents peuvent être prévues sachant que, dans la plupart des cas, la longueur de la face de prise est supérieure à la largeur de la bande, du cliquet, ou du levier d'entraînement.For example other forms of teeth can be provided knowing that, in most cases, the length of the gripping face is greater than the width of the strip, pawl, or the drive lever.

Une dent peut comprendre plusieurs tronçons distincts juxtaposés.A tooth may comprise several distinct sections juxtaposed.

Une dent peut s'étendre transversalement sur une plage inférieure à la largeur de la bande, du cliquet ou du levier d'entraînement.A tooth may extend transversely over a range less than the width of the belt, ratchet or drive lever.

Une dent peut être non symétrique transversalement.A tooth can be asymmetrical transversely.

Aussi, le dispositif de serrage peut comprendre plusieurs cliquets.Also, the clamping device can comprise several pawls.

On a vu que le levier d'entraînement 43 entraîne directement la bande 14. Cependant, alternativement, le levier d'entraînement peut entraîner la bande 14 indirectement. Par exemple, le dispositif de serrage peut comprendre une roue dentée disposée entre le levier d'entraînement et la bande. Dans ce cas, le cliquet peut être agencé pour coopérer avec la roue dentée.It has been seen that the drive lever 43 drives the web 14 directly. However, alternatively, the drive lever may drive the web 14 indirectly. For example, the clamping device may comprise a gearwheel disposed between the drive lever and the band. In this case, the pawl can be arranged to cooperate with the toothed wheel.

On peut par ailleurs éviter l'emploi d'un bouton de libération. Dans ce cas, le levier d'entraînement et le cliquet sont liés à l'embase par des biellettes. Une rotation forcée de ces dernières écarte le cliquet de la bande, ce qui libère celle-ci.We can also avoid the use of a release button. In this case, the drive lever and the pawl are connected to the base by rods. A forced rotation of the latter spreads the ratchet of the band, which releases it.

De manière large on a vu qu'un ensemble selon l'invention peut comprendre une fixation, par exemple de snowboard, avec des liens. Dans ce cas au moins un lien comprend un dispositif de serrage et une bande. Bien entendu, un ensemble peut comprendre toute chaussure, laquelle comprend une semelle et une tige, le dispositif de serrage et la bande étant prévus pour serrer la tige. Par exemple l'ensemble peut comprendre une chaussure de ski, une chaussure de moto, une chaussure de pompier, une chaussure de sécurité, une chaussure militaire, ou autre.Broadly we have seen that an assembly according to the invention may comprise a binding, for example snowboard, with links. In this case at least one link comprises a clamping device and a band. Of course, an assembly may comprise any shoe, which comprises a sole and a rod, the clamping device and the band being provided for tightening the rod. For example the set may include a ski boot, a motorcycle shoe, a firefighter's shoe, a safety shoe, a military shoe, or the like.

L'ensemble peut comprendre un sac.The set can include a bag.

Claims (16)

Ensemble comprenant un dispositif de serrage (15) et une bande (14), la bande (14) s'étendant selon une direction longitudinale (L14) depuis une extrémité d'attache (25) jusqu'à une extrémité libre (26), la bande (14) comportant une denture (27), le dispositif (15) comprenant une embase (33), un levier d'entraînement (43), et un cliquet (40), le levier (43) étant articulé sur l'embase (33), le levier (43) comprenant d'une part une extrémité d'entraînement (45) de la bande (14) selon une première direction, et d'autre part une extrémité de manutention (44), le cliquet (40) étant articulé sur l'embase (33), le cliquet (40) présentant une zone de retenue (42) prévue pour s'opposer au déplacement de la bande (14) selon une deuxième direction inverse à la première direction, un moyen élastique sollicitant en permanence la zone de retenue (42) du cliquet (40) vers l'embase (33),
caractérisé par le fait que pour au moins une dent (29) de la denture (27) de la bande (14) au moins une droite (d1, d2), tangente à la face de prise (30) de la dent (29) et parallèle à la bande (14), forme avec la direction longitudinale (L14) de la bande (14) un angle (α1, α2) inférieur à 90 degrés, par le fait que l'extrémité d'entraînement (45) du levier (43) est conformée pour coopérer avec la denture (27) de la bande (14), et par le fait que la zone de retenue (42) du cliquet (40) est conformée pour coopérer avec la denture (27) de la bande (14).
An assembly comprising a clamping device (15) and a band (14), the band (14) extending in a longitudinal direction (L14) from an attachment end (25) to a free end (26), the band (14) having a toothing (27), the device (15) comprising a base (33), a driving lever (43), and a pawl (40), the lever (43) being articulated on the base (33), the lever (43) comprising on the one hand a driving end (45) of the strip (14) in a first direction, and on the other hand a handling end (44), the pawl ( 40) being articulated on the base (33), the pawl (40) having a retaining zone (42) designed to oppose the displacement of the strip (14) in a second direction opposite to the first direction, a means resiliently urging the retaining zone (42) of the pawl (40) towards the base (33),
characterized in that for at least one tooth (29) of the toothing (27) of the strip (14) at least one straight line (d1, d2), tangent to the engagement face (30) of the tooth (29) and parallel to the strip (14), forms with the longitudinal direction (L14) of the strip (14) an angle (α1, α2) of less than 90 degrees, in that the drive end (45) of the lever (43) is shaped to cooperate with the toothing (27) of the strip (14), and in that the retaining region (42) of the pawl (40) is shaped to cooperate with the toothing (27) of the strip (14).
Ensemble selon la revendication 1, caractérisé par le fait que pour une dent (46) du levier (43) au contact de la denture (27) de la bande (14), au moins une droite (d3, d4), tangente à la face de prise (60) de la dent (46) du levier et parallèle à la bande (14), forme avec la direction longitudinale (L14) de la bande un angle (α3, α4) inférieur à 90 degrés.Assembly according to claim 1, characterized in that for a tooth (46) of the lever (43) in contact with the toothing (27) of the strip (14), at least one straight line (d3, d4), tangent to the gripping face (60) of the tooth (46) of the lever and parallel to the band (14), forms with the longitudinal direction (L14) of the band an angle (α3, α4) less than 90 degrees. Ensemble selon la revendication 1 ou 2, caractérisé par le fait que pour une dent (42) du cliquet (40) au contact de la denture (27) de la bande (14), au moins une droite (d5, d6), tangente à la face de prise (70) de la dent (42) du cliquet et parallèle à la bande (14), forme avec la direction longitudinale (L14) de la bande un angle (α5, α6) inférieur à 90 degrés.Assembly according to claim 1 or 2, characterized in that for a tooth (42) of the pawl (40) in contact with the toothing (27) of the strip (14), at least one straight line (d5, d6), tangent at the engagement face (70) of the ratchet tooth (42) and parallel to the band (14), forms with the longitudinal direction (L14) of the band an angle (α5, α6) of less than 90 degrees. Ensemble selon l'une des revendications 1 à 3, caractérisé par le fait que chaque dent (29, 42, 46), de la bande (14), du cliquet (40) ou du levier (43), présente la forme générale d'un Vé.Assembly according to one of claims 1 to 3, characterized in that each tooth (29, 42, 46), band (14), pawl (40) or lever (43), has the general shape of 'a Ve. Ensemble selon la revendication 4, caractérisé par le fait que l'angle du Vé d'une dent (29, 42, 46), de la bande (14), du cliquet (40) ou du levier (43), est compris entre 60 et 170 degrés.Assembly according to Claim 4, characterized in that the angle of the Vee of a tooth (29, 42, 46), the band (14), the pawl (40) or the lever (43) is between 60 and 170 degrees. Ensemble selon l'une des revendications 1 à 3, caractérisé par le fait que chaque dent (29, 42, 46), de la bande (14), du cliquet (40) ou du levier (43), présente la forme générale d'une courbe.Assembly according to one of claims 1 to 3, characterized in that each tooth (29, 42, 46), band (14), pawl (40) or lever (43), has the general shape of 'a curve. Ensemble selon l'une des revendications 1 à 3, caractérisé par le fait que chaque dent (29, 42, 46), de la bande (14), du cliquet (40) ou du levier (43), présente une alternance de facettes (101,102, 103, 104).Assembly according to one of claims 1 to 3, characterized in that each tooth (29, 42, 46), band (14), pawl (40) or lever (43) has an alternation of facets (101, 102, 103, 104). Ensemble selon l'une des revendications 1 à 7, caractérisé par le fait que chaque dent (29, 42, 46), de la bande (14), du cliquet (40) ou du levier (43), est symétrique transversalement.Assembly according to one of claims 1 to 7, characterized in that each tooth (29, 42, 46), the strip (14), the pawl (40) or the lever (43) is symmetrical transversely. Ensemble selon l'une des revendications 1 à 8, caractérisé par le fait que le levier d'entraînement (43) et le bouton de libération (50) sont articulés respectivement selon des axes (47, 54) différents.Assembly according to one of claims 1 to 8, characterized in that the drive lever (43) and the release button (50) are articulated respectively along different axes (47, 54). Ensemble selon l'une des revendications 1 à 8, caractérisé par le fait que le levier d'entraînement (43) et le bouton de libération (50) sont articulés respectivement selon le même axe (47).Assembly according to one of claims 1 to 8, characterized in that the drive lever (43) and the release button (50) are articulated respectively along the same axis (47). Ensemble selon l'une des revendications 1 à 10, caractérisé par le fait que l'embase (33) présente un premier flasque (34) et un deuxième flasque (35) reliés par un pont (36), par le fait que le levier (43) est articulé sur l'embase (33) entre les flasques (34, 35), par le fait que la première direction d'entraînement est sensiblement parallèle aux flasques (34, 35) et au pont (36), par le fait que le cliquet (40) est articulé sur l'embase (33) entre les flasques (34, 35), et par le fait que le moyen élastique sollicite la zone de retenue (42) du cliquet (40) vers le pont (36).Assembly according to one of claims 1 to 10, characterized in that the base (33) has a first flange (34) and a second flange (35) connected by a bridge (36), in that the lever (43) is articulated on the base (33) between the flanges (34, 35), in that the first driving direction is substantially parallel to the flanges (34, 35) and the bridge (36), by the in that the pawl (40) is articulated on the base (33) between the flanges (34, 35), and in that the resilient means urges the retaining region (42) of the pawl (40) toward the bridge ( 36). Ensemble selon l'une des revendications 1 à 11, caractérisé par le fait que le dispositif de serrage (15) comprend un bouton de libération (50), le bouton de libération (50) étant prévu pour solliciter la zone de retenue (42) du cliquet (40) contre l'action du moyen élastique.Assembly according to one of claims 1 to 11, characterized in that the clamping device (15) comprises a release button (50), the release button (50) being provided to urge the holding area (42). ratchet (40) against the action of the elastic means. Ensemble selon l'une des revendications 1 à 12, caractérisé par le fait qu'il comprend une fixation (1) avec des liens (11, 12), au moins un lien (11, 12) comprenant un dispositif de serrage (15) et une bande (14).Assembly according to one of claims 1 to 12, characterized in that it comprises a fastener (1) with links (11, 12), at least one link (11, 12) comprising a clamping device (15) and a strip (14). Ensemble selon l'une des revendications 1 à 12, caractérisé par le fait qu'il comprend une chaussure de ski, la chaussure comprenant une semelle et une tige, le dispositif de serrage (15) et la bande (14) étant prévus pour serrer la tige.Assembly according to one of claims 1 to 12, characterized in that it comprises a ski boot, the boot comprising a sole and a rod, the tightening device (15) and the band (14) being provided for tightening the stem. Ensemble selon l'une des revendications 1 à 12, caractérisé par le fait qu'il comprend une chaussure de moto, la chaussure comprenant une semelle et une tige, le dispositif de serrage (15) et la bande (14) étant prévus pour serrer la tigeAssembly according to one of claims 1 to 12, characterized in that it comprises a motorcycle shoe, the shoe comprising a sole and a rod, the clamping device (15) and the band (14) being provided for tightening the stem Ensemble selon l'une des revendications 1 à 12, caractérisé par le fait qu'il comprend un sac.Assembly according to one of claims 1 to 12, characterized in that it comprises a bag.
EP09015370A 2008-12-23 2009-12-11 Assembly including ratchet device and belt Not-in-force EP2201856B1 (en)

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FR0807414A FR2940133B1 (en) 2008-12-23 2008-12-23 ASSEMBLY COMPRISING A RATCHET DEVICE AND A BAND

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EP1159885A1 (en) * 2000-05-30 2001-12-05 Salomon S.A. Ratchet tensioning device for restraining band
EP1900399A1 (en) * 2006-09-13 2008-03-19 Salomon S.A. Article comprising a link including a magnet for holding or tightening a foot or a shoe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20120066A1 (en) * 2012-04-24 2013-10-25 Am Teknostampi Spa "LEVER CLOSURE DEVICE WITH ADJUSTABLE METALLIC TONGUE, FOR SPORTS SHOES".

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US20100162539A1 (en) 2010-07-01
JP2010148881A (en) 2010-07-08
FR2940133A1 (en) 2010-06-25
FR2940133B1 (en) 2011-01-07
EP2201856B1 (en) 2011-06-29
ATE514350T1 (en) 2011-07-15

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