EP2517761B1 - Heelpiece of a safety binding for alpine ski - Google Patents

Heelpiece of a safety binding for alpine ski Download PDF

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Publication number
EP2517761B1
EP2517761B1 EP12305128.6A EP12305128A EP2517761B1 EP 2517761 B1 EP2517761 B1 EP 2517761B1 EP 12305128 A EP12305128 A EP 12305128A EP 2517761 B1 EP2517761 B1 EP 2517761B1
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EP
European Patent Office
Prior art keywords
guide
heel piece
fact
ski
heel
Prior art date
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EP12305128.6A
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German (de)
French (fr)
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EP2517761A1 (en
Inventor
Frédéric Farges
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.)
Skis Rossignol SA
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Skis Rossignol SA
Rossignol SA
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Publication of EP2517761A1 publication Critical patent/EP2517761A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/003—Non-swivel sole plate fixed on the ski
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0841—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw
    • A63C9/0842—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw the jaw pivoting on the body or base about a transverse axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
    • A63C7/1006—Ski-stoppers
    • A63C7/1013—Ski-stoppers actuated by the boot
    • A63C7/1033—Ski-stoppers actuated by the boot articulated about at least two transverse axes
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
    • A63C7/1006—Ski-stoppers
    • A63C7/1013—Ski-stoppers actuated by the boot
    • A63C7/1033—Ski-stoppers actuated by the boot articulated about at least two transverse axes
    • A63C7/104—Ski-stoppers actuated by the boot articulated about at least two transverse axes laterally retractable above the ski surface

Definitions

  • the invention relates to the field of alpine skiing. It relates more specifically to a heel for safety fixing. It is more particularly a new geometry to optimize both the transmission of efforts and minimize the impact of the stiffness of the heel on the behavior of the ski.
  • a ski safety binding comprises a stop intended to receive and hold the front part of the boot, and a heel piece which cooperates with the rear of the boot.
  • the heel has a body on which a jaw is pivotally mounted. This jaw cooperates with a protrusion of the heel of the shoe.
  • a release spring is provided to lock the jaw in the closed position, and prevent the exit of the boot under the effect of vertical forces, of an intensity lower than a predetermined threshold.
  • the body comprises a recoil spring which exerts longitudinal forces directed forward, so as to maintain the engagement of the front part of the boot in the abutment, and allow the triggering of the latter in the case of torsion forces greater than another predetermined threshold.
  • the heel is mounted on the ski by means of several securing means which may for example be screws distributed over the heel.
  • the body and the jaw of the heel have a longitudinal translational capacity, to compensate for the compression of the recoil spring, which is observed in particular when putting on the ski.
  • This also makes it possible to adapt the length of the binding to the length of the shoe by acting on an adjusting mechanism.
  • the body is installed in a guide that is itself secured to the ski.
  • the guide is held on the ski by screwing points distributed as spaced apart as possible on its surface. This also allows to have a distribution of the transmission of the forces exerted on the board, both in compression at the time of fitting, far from the support, in traction if necessary.
  • the invention therefore aims to find a combination that allows both to limit as much as possible the influence of the stiffness of the heel on the deformability of the board, while still allowing an excellent transmission of the forces exerted by the skier while maintaining the nominal behavior of the safety fastener in terms of tripping.
  • this heel is characterized in that the rear mounting points are located in front of a line 20 millimeters behind the plumb of the pivot axis of the jaw on the body, when the body is placed in its middle longitudinal position.
  • the heel is secured to the ski mainly by its front part, or more precisely on the part that extends to the back of the shoe.
  • the part of the heel behind this level therefore has no anchor point on the ski.
  • this rear portion located behind the rear mounting points has a lower face which deviates upwards, relative to the plane by which the guide rests on the ski, defined by the underside of the guide in the area where the means of joining are present.
  • the invention allows a transmission of forces that is effective, especially when donning where the user exerts a strong support to counter the springs tripping and recoil.
  • the lower face of the guide can move upwards relative to the plane by which it rests on the ski from a contact line at most 20 mm away from the pivot axis of the jaw on the body.
  • the part of the heel which is cantilevered and raised relative to the ski begins at a level located more or less twenty millimeters from the plumb line of the jaw axis.
  • the guide may comprise a rail, preferably made of a rigid material and in particular of metal, and inside which the body is able to move to compensate the compression of the recoil spring, or also to allow a longitudinal adjustment to the size of the shoe.
  • This guide can be made in one or more pieces, be in a homogeneous material or based on a combination of several materials.
  • the guide may combine a metal rail, for example based on aluminum, and a trim piece based on injected polymer material, loaded with reinforcing fibers, glass or carbon, for example.
  • the heel may include an automatic brake mechanism.
  • This mechanism includes a heel rest plate by which it is mounted on the guide, in its front part.
  • the most rearward fastening means may be located above this plate.
  • the automatic brake mechanism may include a movable paddle, which allows the blades of the brake to pivot in an inactive position when the skier is wearing the ski.
  • the heel holding means located foremost can be in line with this pallet, when the pallet is in the raised position, the ski is thus loosened.
  • the guide may have reinforcing side walls on either side of the bead plate of the brake mechanism.
  • the guide it is possible for the guide to have an area of increased width and / or thickness near the rearmost connecting means, up to the contact line, the door-end zone of the door-to-door. false. Unbridling is then observed by the fact that the part of the ski situated under the door overhang of the guide is not constrained.
  • the length of the guide zone in contact with the ski is less than the length of the guide zone located behind the contact line, these lengths being measured projected on the ski.
  • the cantilevered portion of the heel is longer than the portion that rests on the ski.
  • the longitudinal distance separating the longitudinally spaced apart fastening means may be less than the length of the guide zone located behind the nip.
  • the distance between the most extreme securing means is less than the zone of the cantilevered guide, or even preferably less than two thirds of this length. This distance between the securing points is generally less than the length of the guide zone in contact with the ski.
  • the means of securing the heel to the ski can be made in different ways. It can thus be screws mounted through passage holes formed in the guide, or else hooking tabs located under the underside of the guide, and for mounting the heel on a platform, with advantageously increased adjustment capacity of the longitudinal position of the heel. These advantages are significant especially in the case of skis for rental.
  • the lower face of the cantilevered zone may include a compressible portion, to dampen the possible impacts of the cantilevered area on the top of the ski. This portion can be reported under the guide, or be an integral part of it.
  • the heel 1 is mounted directly on the board 2 , it being understood that it is recalled that in some variants, this heel can be mounted on the board by means of an enhancement platform.
  • the heel 1 consists essentially of a guide 3 in which is inserted a body 4 with longitudinal translation capacity, on which is pivotally mounted a jaw 5 , pivotable relative to the body about the axis 6 .
  • this guide 3 is secured to the board 2 and can receive various accessories, and in particular an automatic brake 8 .
  • the heel illustrated in figure 2 comprises an automatic brake mechanism 8 , which comprises a heel rest plate 20 , which is housed on the front portion of the guide 3 , and more precisely between two side walls 16 of the guide with respect to its rear portion.
  • This brake mechanism 8 also comprises two retractable arms 21 which are pivotally mounted relative to the front of the bead plate 20 .
  • the two arms 21 are secured in the central part of the brake to form an inverted U-shaped structure which receives at the median plane of the attachment a pallet 24 , itself pivotally mounted relative to the junction zone 25 of the two arms.
  • This pallet 24 is also connected to the heel rest plate 20 via a connecting rod 26 which limits the excursion of the brake, and keeps the pallet 24 in a substantially horizontal position, to receive the support of the heel of the shoe when donning.
  • the heel plate 20 of the brake mechanism 8 has a screw-through hole 29 which allows the brake 8 to be secured to the guide 3 .
  • the rear anchor points 30 of the guide on the ski are located in front of the plumb of the axis of pivoting 6 of the jaw 5 relative to the body 4 , the body 4 being placed in its central longitudinal position vis-à-vis its potential adjustment capacity.
  • these anchoring points 30 are situated at a distance D1 of the order of 45 mm from the line of this axis 6 .
  • the guide 3 of the heel is also secured to the ski through two mounting points 31 located in front of the guide.
  • anchor points 31 are visible at the figure 4 where only the guide and the brake have been represented. It is found that the distance between the front 31 and rear 30 mounting points, in the horizontal part of the guide, is relatively small, compared to the length of the portion of the guide which is cantilevered, and which starts back from the contact line 10 . In the illustrated form, this distance D2 is about 60 mm, while the length of the cantilever is 125 mm. Still in this example, the length of the contact zone is about 100 mm.
  • the guide as illustrated in figure 4 , has an increased rigidity, in particular near the contact line 10 and up to the proximity of the holes of the rear screws 30 , so as to prevent, or at least to very strongly limit the deformations of the part of the cantilevered guide.
  • the guide has vertical walls 18 , which extend from the proximity of the contact line 10 to the rear of the guide. In the cantilever portion of the guide, these walls protect the inner rail 17 by laterally covering the areas in which the body 4 slides.
  • these walls 18 are relatively thin. In the area near the nip, these walls have portions 16 which are enlarged and thickened to impart increased rigidity. Beyond, forward, these walls form portions 19 again relatively thin, which surround the heel rest 20 of the automatic brake 8 .
  • the heel is attached directly to the board, or on an intermediate platform, through through screws.
  • This platform can be mounted in various locations of the ski, including various known damping solutions and means for mounting the platform on the ski
  • the invention also covers variants not shown, in which the heel piece is mounted with a sliding capacity on an intermediate platform, or even directly on the ski, through slide mechanisms.
  • the means of securing the heel must also allow this sliding, and are in the form of tabs cooperating with the slide formed in the platform or in the ski.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Description

Domaine techniqueTechnical area

L'invention se rattache au domaine du ski alpin. Elle concerne plus spécifiquement une talonnière pour fixation de sécurité. Elle vise plus particulièrement une nouvelle géométrie permettant d'optimiser à la fois la transmission des efforts et de minimiser l'impact de la rigidité de la talonnière sur le comportement du ski.The invention relates to the field of alpine skiing. It relates more specifically to a heel for safety fixing. It is more particularly a new geometry to optimize both the transmission of efforts and minimize the impact of the stiffness of the heel on the behavior of the ski.

Techniques antérieuresPrevious techniques

De façon générale, une fixation de sécurité de ski comporte une butée destinée à recevoir et à maintenir la partie avant de la chaussure, et une talonnière qui coopère avec l'arrière de la chaussure.In general, a ski safety binding comprises a stop intended to receive and hold the front part of the boot, and a heel piece which cooperates with the rear of the boot.

Plus précisément, la talonnière comporte un corps sur lequel une mâchoire est montée pivotante. Cette mâchoire coopère avec une excroissance du talon de la chaussure. Un ressort de déclenchement est prévu pour bloquer la mâchoire en position fermée, et empêcher la sortie de la chaussure sous l'effet d'efforts verticaux, d'une intensité inférieure à un seuil prédéterminé.More specifically, the heel has a body on which a jaw is pivotally mounted. This jaw cooperates with a protrusion of the heel of the shoe. A release spring is provided to lock the jaw in the closed position, and prevent the exit of the boot under the effect of vertical forces, of an intensity lower than a predetermined threshold.

Le corps comporte quant à lui un ressort de recul qui exerce des efforts longitudinaux dirigés vers l'avant, de manière à maintenir l'engagement de la partie avant de la chaussure dans la butée, et permettre le déclenchement de cette dernière dans le cas d'efforts de torsion supérieurs à un autre seuil prédéterminé.The body comprises a recoil spring which exerts longitudinal forces directed forward, so as to maintain the engagement of the front part of the boot in the abutment, and allow the triggering of the latter in the case of torsion forces greater than another predetermined threshold.

La talonnière est montée sur le ski par l'intermédiaire de plusieurs moyens de solidarisation qui peuvent par exemple être des vis réparties sur la talonnière.The heel is mounted on the ski by means of several securing means which may for example be screws distributed over the heel.

Dans la suite de la description, on parlera de solidarisation de la talonnière sur le ski pour couvrir les cas de figures où la talonnière est montée directement sur la planche en venant au contact de cette dernière, mais également les cas de figures où la talonnière est montée sur une plateforme de rehaussement, elle-même solidarisée à la planche.In the rest of the description, we will talk about the attachment of the heel on the ski to cover situations where the heel is mounted directly on the board coming into contact with the latter, but also the cases of figures where the heel is mounted on a raising platform, itself secured to the board.

Le corps et la mâchoire de la talonnière présentent une capacité de translation longitudinale, pour compenser la compression du ressort de recul, que l'on observe en particulier au moment du chaussage du ski. Cela permet également d'adapter la longueur de la fixation à la longueur de la chaussure par action sur un mécanisme de réglage. Pour cela, le corps est installé dans un guide qui est lui-même solidarisé au ski.The body and the jaw of the heel have a longitudinal translational capacity, to compensate for the compression of the recoil spring, which is observed in particular when putting on the ski. This also makes it possible to adapt the length of the binding to the length of the shoe by acting on an adjusting mechanism. For this, the body is installed in a guide that is itself secured to the ski.

De manière générale, et comme par exemple décrit dans les documents FR 2 889 076 et FR 2 695 323 , le guide est maintenu sur le ski par des points de vissage répartis de manière aussi écartée que possible sur sa surface. Ceci permet également d'avoir une répartition de la transmission des efforts exercés sur la planche, tant en compression au moment du chaussage, loin de la prise d'appui, qu'en traction le cas échéant.In general, and as for example described in the documents FR 2 889 076 and FR 2,695,323 , the guide is held on the ski by screwing points distributed as spaced apart as possible on its surface. This also allows to have a distribution of the transmission of the forces exerted on the board, both in compression at the time of fitting, far from the support, in traction if necessary.

Cependant, une telle répartition présente toutefois l'inconvénient de modifier la rigidité intrinsèque du ski en y ajoutant celle de la talonnière qui peut être élevée.However, such a distribution has the disadvantage of modifying the intrinsic rigidity of the ski by adding that of the heel which can be high.

Une disposition alternative a été décrite dans le document FR 2 347 066 . Une telle talonnière est montée sur une plateforme suspendue qui n'est fixée au ski que par son extrémité avant. La talonnière est solidarisée à cette plateforme par divers points répartis sur toute sa longueur. La partie arrière de la talonnière, sur laquelle s'appuie le talon de la chaussure est donc suspendue, et l'élasticité de la plateforme permet un fort débattement du corps et de la mâchoire de la talonnière. Une telle solution n'est pas réellement satisfaisante, dans la mesure où la transmission des efforts verticaux se fait après déformation de la plateforme, avec donc une certaine inertie et une déperdition d'énergie. Un tel dispositif n'est donc pas adapté à une pratique qui requiert une forte précision et une importante réactivité.An alternative provision has been described in the document FR 2,347,066 . Such a heel is mounted on a suspended platform which is fixed to the ski only by its front end. The heel is secured to this platform by various points distributed over its entire length. The back of the heel, on which rests the heel of the shoe is suspended, and the elasticity of the platform allows a high movement of the body and the jaw of the heel. Such a solution is not really satisfactory, insofar as the transmission of vertical forces is done after deformation of the platform, with a certain inertia and loss of energy. Such a device is therefore not suited to a practice that requires high precision and high responsiveness.

Une autre solution a été décrite dans le document EP 1 072 294 . La talonnière décrite dans ce document est montée sur le ski par l'intermédiaire d'un plot viscoélastique qui s'étend sur une partie importante de la surface de la talonnière. Mécaniquement, la talonnière est solidarisée au ski par l'intermédiaire d'une liaison pivotante, de telle sorte que la talonnière subit un mouvement de tangage en fonction de la déformation du ski, et des appuis exercés.Another solution has been described in the document EP 1 072 294 . The heel described in this document is mounted on the ski by means of a viscoelastic pad which extends over a large part of the surface of the heel. Mechanically, the heel is secured to the ski via a pivotal connection, so that the heel is subject to a pitching movement as a function of the deformation of the ski, and supports exerted.

Ce mouvement relatif de la plateforme par rapport au ski est une source de perte de précision qui peut être préjudiciable dans certains types de pratique.This relative movement of the platform with respect to skiing is a source of loss of precision that can be detrimental in certain types of practice.

Exposé de l'inventionPresentation of the invention

L'invention vise donc à trouver une combinaison qui permette à la fois de limiter autant que possible l'influence de la raideur de la talonnière sur la déformabilité de la planche, et ce tout en permettant toutefois une excellente transmission des efforts exercés par le skieur, et ce, tout en conservant également le comportement nominal de la fixation de sécurité en termes de déclenchement.The invention therefore aims to find a combination that allows both to limit as much as possible the influence of the stiffness of the heel on the deformability of the board, while still allowing an excellent transmission of the forces exerted by the skier while maintaining the nominal behavior of the safety fastener in terms of tripping.

L'invention concerne une talonnière de fixation de sécurité pour skis alpins qui comporte :

  • ▪ un corps incluant un ressort de recul ;
  • ▪ une mâchoire apte à coopérer avec une fraction de la chaussure de l'utilisateur, et agencée pour pivoter par rapport à ce corps autour d'un axe transversal ;
  • ▪ un guide recevant ledit corps avec capacité de déplacement en translation longitudinale ;
  • ▪ des moyens de solidarisation de la talonnière sur le ski à savoir des points de montage avant et arrière, répartis sur une fraction de la surface du guide.
The invention relates to a safety binding heel for alpine skis comprising:
  • ▪ a body including a recoil spring;
  • A jaw capable of cooperating with a fraction of the user's boot, and arranged to pivot relative to this body about a transverse axis;
  • ▪ a guide receiving said body with displacement capacity in longitudinal translation;
  • ▪ means for securing the heel on the ski namely front and rear mounting points, distributed over a fraction of the surface of the guide.

Conformément à l'invention, cette talonnière se caractérise en ce que les points de montage arrière sont situés en avant d'une ligne située à 20 millimètres en arrière de l'aplomb de l'axe de pivotement de la mâchoire sur le corps, lorsque le corps est placé dans sa position longitudinale médiane.According to the invention, this heel is characterized in that the rear mounting points are located in front of a line 20 millimeters behind the plumb of the pivot axis of the jaw on the body, when the body is placed in its middle longitudinal position.

Pour déterminer la position de l'axe de pivotement permettant de positionner les moyens de solidarisation les plus arrières, on utilisera la fixation dans sa configuration déchaussée, pour laquelle le ressort de recul n'est pas actif. Dans le cas où le corps peut posséder différentes positions en fonction en particulier d'un réglage à la pointure de la chaussure, on prendra comme position médiane, la position du corps à mi-chemin entre les positions de réglages extrêmes vers l'avant et l'arrière.To determine the position of the pivot axis for positioning the most rear fastening means, use the fastening in its off-set configuration, for which the recoil spring is not active. In the case where the body can have different positions depending in particular on an adjustment to the shoe size, it will take as a middle position, the position of the body midway between the positions of extreme settings forward and the rear.

Autrement dit, la talonnière est solidarisée au ski principalement par sa partie avant, ou plus précisément sur la partie qui s'étend jusqu'à l'arrière de la chaussure. La partie de la talonnière située en arrière de ce niveau ne comporte donc aucun point d'ancrage sur le ski.In other words, the heel is secured to the ski mainly by its front part, or more precisely on the part that extends to the back of the shoe. The part of the heel behind this level therefore has no anchor point on the ski.

Complémentairement, cette partie arrière, située en arrière des points de montage arrière présente une face inférieure qui s'écarte vers le haut, par rapport au plan par lequel le guide repose sur le ski, définie par la face inférieure du guide dans la zone où sont présents les moyens de solidarisation.Complementarily, this rear portion, located behind the rear mounting points has a lower face which deviates upwards, relative to the plane by which the guide rests on the ski, defined by the underside of the guide in the area where the means of joining are present.

En d'autres termes, grâce aux points de montage arrière, l'invention permet une transmission des efforts qui est efficace, en particulier lors du chaussage où l'utilisateur exerce un appui marqué pour contrer les ressorts de déclenchement et de recul.In other words, thanks to the rear mounting points, the invention allows a transmission of forces that is effective, especially when donning where the user exerts a strong support to counter the springs tripping and recoil.

Cette transmission efficace se fait en combinaison avec un débridage de la partie arrière du ski, qui conserve donc ses qualités de rigidité intrinsèques, ce qui permet donc au ski de se déformer en flexion, même dans la zone du corps de la talonnière. De plus après chaussage, le ressort de recul n'induit pas de contre-flèche du ski, et ne perturbe pas ou très peu le cambre naturel du ski. Ces avantages sont appréciables en particulier dans le cadre d'une pratique sportive.This efficient transmission is done in combination with unclamping of the ski's back, which retains its intrinsic rigidity qualities, which allows the ski to deform in bending, even in the area of the body of the heel. In addition, after the boot, the recoil spring does not induce counter-arrow of the ski, and does not disturb or very little the natural camber of the ski. These advantages are appreciable especially in the context of a sporting practice.

En pratique, la face inférieure du guide peut s'écarter vers le haut par rapport au plan par lequel il repose sur le ski à partir d'une ligne de contact distante au plus de 20 mm de l'aplomb de l'axe de pivotement de la mâchoire sur le corps. Autrement dit, la partie de la talonnière qui se trouve en porte-à-faux et surélevée par rapport au ski, débute à un niveau situé à plus ou moins vingt millimètres de l'aplomb de l'axe de la mâchoire.In practice, the lower face of the guide can move upwards relative to the plane by which it rests on the ski from a contact line at most 20 mm away from the pivot axis of the jaw on the body. In other words, the part of the heel which is cantilevered and raised relative to the ski, begins at a level located more or less twenty millimeters from the plumb line of the jaw axis.

D'un point de vue structurel, le guide peut comporter un rail, préférentiellement en un matériau rigide et en particulier en métal, et à l'intérieur duquel le corps est apte à se déplacer pour compenser la compression du ressort de recul, ou également pour permettre un réglage longitudinal à la pointure de la chaussure. Ce guide peut être réalisé en une seule ou plusieurs pièces, être en un matériau homogène ou à base d'une combinaison de plusieurs matériaux. Dans un cas de réalisation particulier, le guide peut combiner un rail métallique, par exemple à base d'aluminium, et une pièce d'habillage à base de matériau polymère injecté, chargé de fibres de renforcement, en verre ou carbone par exemple.From a structural point of view, the guide may comprise a rail, preferably made of a rigid material and in particular of metal, and inside which the body is able to move to compensate the compression of the recoil spring, or also to allow a longitudinal adjustment to the size of the shoe. This guide can be made in one or more pieces, be in a homogeneous material or based on a combination of several materials. In a particular embodiment, the guide may combine a metal rail, for example based on aluminum, and a trim piece based on injected polymer material, loaded with reinforcing fibers, glass or carbon, for example.

Avantageusement en pratique, la talonnière peut comporter un mécanisme de frein automatique. Ce mécanisme inclut une plaque repose talon par laquelle il est monté sur le guide, dans sa partie avant.Advantageously in practice, the heel may include an automatic brake mechanism. This mechanism includes a heel rest plate by which it is mounted on the guide, in its front part.

Dans ce cas, les moyens de solidarisation les plus arrières peuvent se situer à l'aplomb de cette plaque.In this case, the most rearward fastening means may be located above this plate.

Complémentairement, le mécanisme de frein automatique peut comporter une palette mobile, qui permet de faire pivoter les lames du frein dans une position inactive lorsque le skieur chausse le ski. Dans ce cas, les moyens de solidarisation de la talonnière situés le plus en avant peuvent se trouver à l'aplomb de cette palette, lorsque cette palette est en position relevée, le ski étant donc déchaussé.Additionally, the automatic brake mechanism may include a movable paddle, which allows the blades of the brake to pivot in an inactive position when the skier is wearing the ski. In this case, the heel holding means located foremost can be in line with this pallet, when the pallet is in the raised position, the ski is thus loosened.

Diverses dispositions peuvent être adoptées pour augmenter la rigidité du guide, et en particulier de la zone en porte-à-faux, afin d'éviter que celle-ci ne se déforme sous l'effet des appuis exercés par le skieur.Various provisions can be adopted to increase the stiffness of the guide, and in particular the cantilevered area, to prevent it from being deformed under the effect of the support exerted by the skier.

Ainsi, dans une variante de réalisation, le guide peut présenter des parois latérales de renforcement de part et d'autre de la plaque repose talon du mécanisme de frein.Thus, in an alternative embodiment, the guide may have reinforcing side walls on either side of the bead plate of the brake mechanism.

Dans une autre variante, il est possible que le guide présente une zone de largeur et/ou d'épaisseur accentuées à proximité des moyens de solidarisation situés les plus en arrière, jusqu'à la ligne de contact, zone limite du porte-à-faux. On observe alors un débridage obtenu par le fait que la partie du ski située sous le porte-à-faux du guide n'est pas contrainte.In another variant, it is possible for the guide to have an area of increased width and / or thickness near the rearmost connecting means, up to the contact line, the door-end zone of the door-to-door. false. Unbridling is then observed by the fact that the part of the ski situated under the door overhang of the guide is not constrained.

Dans une forme particulière de réalisation, la longueur de la zone du guide en contact avec le ski est inférieure à la longueur de la zone du guide située en arrière de la ligne de contact, ces longueurs étant mesurées projetées sur le ski. Autrement dit, la partie en porte-à-faux de la talonnière est plus longue que la portion qui repose sur le ski.In a particular embodiment, the length of the guide zone in contact with the ski is less than the length of the guide zone located behind the contact line, these lengths being measured projected on the ski. In other words, the cantilevered portion of the heel is longer than the portion that rests on the ski.

Selon un autre aspect de l'invention, la distance longitudinale séparant les moyens de solidarisation les plus écartés longitudinalement peut être inférieure à la longueur de la zone du guide située en arrière de la ligne de contact. Autrement dit, la distance entre les moyens de solidarisation les plus extrêmes est inférieure à la zone du guide en porte-à-faux, voire de préférence inférieure aux deux tiers de cette longueur. Cette distance entre les points de solidarisation est généralement inférieure à la longueur de la zone du guide en contact avec le ski.According to another aspect of the invention, the longitudinal distance separating the longitudinally spaced apart fastening means may be less than the length of the guide zone located behind the nip. In other words, the distance between the most extreme securing means is less than the zone of the cantilevered guide, or even preferably less than two thirds of this length. This distance between the securing points is generally less than the length of the guide zone in contact with the ski.

En pratique, les moyens de solidarisation de la talonnière sur le ski peuvent être réalisés de différentes manières. Il peut ainsi s'agir de vis montées à travers des trous de passage formés dans le guide, ou bien encore de pattes d'accrochage situées sous la face inférieure du guide, et permettant de monter la talonnière sur une plateforme, avec avantageusement une capacité de réglage accrue de la position longitudinale de la talonnière. Ces avantages sont appréciables en particulier dans le cas de skis destinés à la location.In practice, the means of securing the heel to the ski can be made in different ways. It can thus be screws mounted through passage holes formed in the guide, or else hooking tabs located under the underside of the guide, and for mounting the heel on a platform, with advantageously increased adjustment capacity of the longitudinal position of the heel. These advantages are significant especially in the case of skis for rental.

Dans une forme de réalisation particulière, la face inférieure de la zone en porte-à-faux peut inclure une portion compressible, pour amortir les éventuels impacts de la zone en porte à faux sur le dessus du ski. Cette portion peut être rapportée sous le guide, ou faire partie intégrante de ce dernier.In a particular embodiment, the lower face of the cantilevered zone may include a compressible portion, to dampen the possible impacts of the cantilevered area on the top of the ski. This portion can be reported under the guide, or be an integral part of it.

Dans une autre variante, il peut être avantageux de limiter le débattement du guide vers le haut, en prévoyant un mécanisme formant une butée contre laquelle le guide vient en contact en cas de forte déformation du ski.In another variant, it may be advantageous to limit the deflection of the guide upwards, by providing a mechanism forming a stop against which the guide comes into contact in case of severe deformation of the ski.

Description sommaire des figuresBrief description of the figures

La manière de réaliser l'invention, ainsi que les avantages qui en découlent ressortiront bien de la description des modes de réalisation qui suivent, à l'appui des figures annexées dans lesquelles :

  • La figure 1 est une vue en perspective sommaire d'une talonnière conforme à l'invention.
  • La figure 2 est une vue de côté de la talonnière de la figure 1.
  • La figure 3 est une vue en coupe longitudinale de la talonnière de la figure 1.
  • La figure 4 est une vue en perspective sommaire du guide de la talonnière de la figure 1 associé au mécanisme de frein automatique.
The manner of carrying out the invention, as well as the advantages which result therefrom, will emerge from the description of the embodiments which follow, in support of the appended figures in which:
  • The figure 1 is a brief perspective view of a heel according to the invention.
  • The figure 2 is a side view of the heel of the figure 1 .
  • The figure 3 is a longitudinal sectional view of the heel of the figure 1 .
  • The figure 4 is a rough perspective view of the heel guide of the figure 1 associated with the automatic brake mechanism.

Manière de réaliser l'inventionWay of realizing the invention

Comme illustré à la figure 1, la talonnière 1 est montée directement sur la planche 2, étant entendu qu'il est rappelé que dans certaines variantes, cette talonnière peut être montée sur la planche par l'intermédiaire d'une plateforme de rehaussement.As illustrated in figure 1 , the heel 1 is mounted directly on the board 2 , it being understood that it is recalled that in some variants, this heel can be mounted on the board by means of an enhancement platform.

La talonnière 1 se compose essentiellement d'un guide 3 dans lequel est inséré un corps 4 avec capacité de translation longitudinale, sur laquelle est montée pivotant une mâchoire 5, apte à pivoter par rapport au corps autour de l'axe 6.The heel 1 consists essentially of a guide 3 in which is inserted a body 4 with longitudinal translation capacity, on which is pivotally mounted a jaw 5 , pivotable relative to the body about the axis 6 .

Dans la partie avant, ce guide 3 est solidarisé à la planche 2 et peut recevoir différents accessoires, et en particulier un frein automatique 8.In the front part, this guide 3 is secured to the board 2 and can receive various accessories, and in particular an automatic brake 8 .

Comme on le voit à la figure 2, au-delà d'un point 10 formant une ligne de contact, la partie arrière de la talonnière est écartée de la face supérieure 11 de la planche 2, et se trouve donc en léger porte-à-faux.As we see in figure 2 beyond a point 10 forming a line of contact, the rear portion of the heel is spaced from the upper face 11 of the board 2 , and is therefore slightly cantilevered.

On notera que la talonnière illustrée à la figure 2 comporte un mécanisme de frein automatique 8, qui comprend une plaque repose talon 20, qui vient se loger sur la partie avant du guide 3, et plus précisément entre deux parois latérales 16 du guide en ce qui concerne sa partie arrière. Ce mécanisme de frein 8 comprend également deux bras 21 rétractables qui sont montés pivotants par rapport à l'avant de la plaque repose talon 20. Les deux bras 21 sont solidarisés dans la partie centrale du frein pour former une structure en U inversé qui reçoit au niveau du plan médian de la fixation une palette 24, elle-même montée pivotante par rapport à la zone de jonction 25 des deux bras.Note that the heel illustrated in figure 2 comprises an automatic brake mechanism 8 , which comprises a heel rest plate 20 , which is housed on the front portion of the guide 3 , and more precisely between two side walls 16 of the guide with respect to its rear portion. This brake mechanism 8 also comprises two retractable arms 21 which are pivotally mounted relative to the front of the bead plate 20 . The two arms 21 are secured in the central part of the brake to form an inverted U-shaped structure which receives at the median plane of the attachment a pallet 24 , itself pivotally mounted relative to the junction zone 25 of the two arms.

Cette palette 24 est également reliée à la plaque repose talon 20 par l'intermédiaire d'une bielle 26 qui limite l'excursion du frein, et maintient la palette 24 dans une position sensiblement horizontale, pour recevoir l'appui du talon de la chaussure lors du chaussage.This pallet 24 is also connected to the heel rest plate 20 via a connecting rod 26 which limits the excursion of the brake, and keeps the pallet 24 in a substantially horizontal position, to receive the support of the heel of the shoe when donning.

Comme on peut le noter à la figure 3, la plaque repose talon 20 du mécanisme de frein 8 présente un trou 29 de passage de vis qui permet de solidariser le frein 8 sur le guide 3.As can be noted in the figure 3 the heel plate 20 of the brake mechanism 8 has a screw-through hole 29 which allows the brake 8 to be secured to the guide 3 .

Comme on le voit à la figure 4, on note en pratique que les points d'ancrage arrière 30 du guide sur le ski sont situés en avant de l'aplomb de l'axe de pivotement 6 de la mâchoire 5 par rapport au corps 4, le corps 4 étant placé dans sa position longitudinale médiane vis-à-vis de sa capacité de réglage potentielle. Dans la forme illustrée, ces points d'ancrage 30 sont situés à une distance D1 de l'ordre de 45 mm de l'aplomb de cet axe 6.As we see in figure 4 , it is noted in practice that the rear anchor points 30 of the guide on the ski are located in front of the plumb of the axis of pivoting 6 of the jaw 5 relative to the body 4 , the body 4 being placed in its central longitudinal position vis-à-vis its potential adjustment capacity. In the form shown, these anchoring points 30 are situated at a distance D1 of the order of 45 mm from the line of this axis 6 .

Le guide 3 de la talonnière est également solidarisé au ski par l'intermédiaire de deux points de montage 31 situés en avant du guide.The guide 3 of the heel is also secured to the ski through two mounting points 31 located in front of the guide.

Ces points d'ancrage 31 sont visibles à la figure 4 où seul le guide et le frein ont été représentés. On constate que la distance qui sépare les points de montage avant 31 et arrière 30, dans la partie horizontale du guide, est relativement faible, en comparaison de la longueur de la partie du guide qui se trouve en porte-à-faux, et qui démarre en arrière de la ligne de contact 10. Dans la forme illustrée, cette distance D2 est de 60 mm environ, tandis que la longueur du porte-à-faux est de 125 mm. Toujours dans cet exemple, la longueur de la zone de contact est de 100 mm environ.These anchor points 31 are visible at the figure 4 where only the guide and the brake have been represented. It is found that the distance between the front 31 and rear 30 mounting points, in the horizontal part of the guide, is relatively small, compared to the length of the portion of the guide which is cantilevered, and which starts back from the contact line 10 . In the illustrated form, this distance D2 is about 60 mm, while the length of the cantilever is 125 mm. Still in this example, the length of the contact zone is about 100 mm.

D'un point de vue structurel, le guide, tel qu'illustré à la figure 4, présente une rigidité accrue, en particulier à proximité de la ligne de contact 10 et jusqu'à proximité des trous de passage des vis arrières 30, de manière à empêcher, ou à tout le moins à limiter très fortement les déformations de la partie du guide en porte-à-faux.From a structural point of view, the guide, as illustrated in figure 4 , has an increased rigidity, in particular near the contact line 10 and up to the proximity of the holes of the rear screws 30 , so as to prevent, or at least to very strongly limit the deformations of the part of the cantilevered guide.

Ainsi, le guide présente des parois verticales 18, qui s'étendent depuis la proximité de la ligne de contact 10 jusqu'à l'arrière du guide. Dans la partie en porte-à-faux du guide, ces parois protègent le rail intérieur 17 en recouvrant latéralement les zones dans lesquelles coulisse le corps 4.Thus, the guide has vertical walls 18 , which extend from the proximity of the contact line 10 to the rear of the guide. In the cantilever portion of the guide, these walls protect the inner rail 17 by laterally covering the areas in which the body 4 slides.

Dans la partie arrière du guide, ces parois 18 sont relativement minces. Dans la zone à proximité de la ligne de contact, ces parois présentent des portions 16 qui sont élargies et épaissies pour conférer une rigidité accrue. Au-delà, vers l'avant, ces parois forment des portions 19 à nouveau relativement minces, qui entourent le repose-talon 20 du frein automatique 8.In the rear part of the guide, these walls 18 are relatively thin. In the area near the nip, these walls have portions 16 which are enlarged and thickened to impart increased rigidity. Beyond, forward, these walls form portions 19 again relatively thin, which surround the heel rest 20 of the automatic brake 8 .

Dans les formes représentées aux figures 1 à 4, la talonnière est fixée directement sur la planche, ou sur une plateforme intermédiaire, grâce à des vis traversantes. Cette plateforme peut être montée en divers endroits du ski, en incluant diverses solutions connues d'amortissement ainsi que des moyens de montage de la plateforme sur le ski Toutefois, l'invention couvre également des variantes non représentées, dans lesquelles la talonnière est montée avec une capacité de coulissement sur une plateforme intermédiaire, voire directement sur le ski, grâce à des mécanismes de glissière. Dans ce cas, les moyens de solidarisation de la talonnière doivent également permettre ce coulissement, et se présentent sous la forme de pattes coopérant avec la glissière formée dans la plateforme ou dans le ski.In the forms represented in Figures 1 to 4 , the heel is attached directly to the board, or on an intermediate platform, through through screws. This platform can be mounted in various locations of the ski, including various known damping solutions and means for mounting the platform on the ski However, the invention also covers variants not shown, in which the heel piece is mounted with a sliding capacity on an intermediate platform, or even directly on the ski, through slide mechanisms. In this case, the means of securing the heel must also allow this sliding, and are in the form of tabs cooperating with the slide formed in the platform or in the ski.

Il ressort de ce qui précède que la talonnière réalisée conformément à l'invention présente l'avantage de combiner à la fois :

  • ▪ une excellente transmission des efforts, par le positionnement des points de solidarisation sensiblement à l'aplomb de la partie extrême arrière de la chaussure, où sont exercés des efforts les plus importants, en particulier lors du chaussage ;
  • ▪ une bonne résistance à l'arrachement du fait du positionnement approprié des moyens de solidarisation, et d'un dimensionnement adéquat du guide ;
  • ▪ un débridage partiel du ski par la limitation de la zone de contact entre la talonnière et le ski, et la localisation de cette zone dans la partie avant de la talonnière.
It follows from the above that the heel made according to the invention has the advantage of combining both:
  • ▪ excellent transmission of forces, by the positioning of the attachment points substantially in line with the rear end of the shoe, where are exerted the most important efforts, especially when donning;
  • A good resistance to tearing due to the appropriate positioning of the securing means, and adequate sizing of the guide;
  • ▪ partial unclamping of the ski by limiting the contact area between the heel and the ski, and the location of this area in the front portion of the heel.

Claims (14)

  1. Safety retention heel piece (1) for alpine ski, incorporating:
    - a body (4) incorporating a recoil spring;
    - a jaw (5) able to interoperate with a portion of the user's boot, and designed to pivot in relation to the said body (4), around a transversal axis (6);
    - a guide (3) accommodating the said body (4), with a capability for longitudinal sideways movement;
    - means of connection (30, 31) of the heel piece to the ski, namely front (31) and rear (30) assembly points distributed over a portion of the surface of the guide; characterized by the fact that:
    - the rear assembly points (30) are located forward of a line situated 20 millimeters rear of vertical alignment with the pivot axis (6) of the jaw (5) on the body (4) when it is in its middle longitudinal position;
    - rear of the said rear assembly points (30), the lower face of the guide (3) divides upwards in relation to the plane on which the guide rests on the ski, defined by its lower face enclosing the said portion of the surface of the guide accommodating the means of connection.
  2. Retention heel piece characterized by the fact that the rear anchoring points are located forward of the pivot axis (6) of the jaw (5) on the body (4).
  3. Retention heel piece characterized by the fact that the distance that separates the front and rear assembly points is less than the length of the area of the guide off-centered.
  4. Heel piece in accordance with claim 1, characterized by the fact that the lower face of the guide divides upwards in relation to the plane on which it rests on the ski, as from a contact line (10) not more than 20 mm distant from vertical alignment with the pivot axis (6) of the jaw (5) on the body (4).
  5. Heel piece according to claim 1, characterized by the fact that the guide incorporates a rail (17) within which the body (4) is able to move.
  6. Heel piece according to claim 1, characterized by the fact that it incorporates an automatic brake mechanism (8) including a heel piece rest plate (20) by means of which the said mechanism (8) is mounted on the guide (3), and in which the rear-most means of connection (30) are situated in vertical alignment with the said plate (20).
  7. Heel piece according to claim 6, characterized by the fact that the automatic brake mechanism (8) incorporates a mobile vane (24), in which the forward-most means of connection (31) are located in vertical alignment with the said vane (24) when the said vane is in the raised position.
  8. Heel piece according to claim 6, characterized by the fact that the guide has lateral reinforcement walls (16) either side of the heel piece rest plate (20).
  9. Heel piece according to claim 1, characterized by the fact that the guide (3) has an area of greater width and/or thickness near the rear-most means of connection.
  10. Heel piece according to claim 4, characterized by the fact that the length of the area of the guide (3) in contact with the ski is less than the length of the area of the guide (3) located rear of the contact line (10), the which lengths being measured projected on the ski.
  11. Heel piece according to claim 4, characterized by the fact that the longitudinal distance (D2) separating the means of connection (30, 31) most-longitudinally-separated is less than the length of the guide area located rearwards of the contact line (10).
  12. Heel piece according to claim 4, characterized by the fact that the longitudinal distance separating the means of connection (30, 31) most-longitudinally-separated is less than two thirds of the length of the area of the guide located rearwards of the contact line (10).
  13. Heel piece according to claim 1, characterized by the fact that the means of connection are screws fitted through holes (30, 31) provided in the guide.
  14. Heel piece according to claim 1, characterized by the fact that the means of connection are attachment lugs located underneath the lower face of the guide.
EP12305128.6A 2011-04-27 2012-02-02 Heelpiece of a safety binding for alpine ski Active EP2517761B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1153615A FR2974515B1 (en) 2011-04-27 2011-04-27 SAFETY FASTENING TALONNIER FOR ALPINE SKI

Publications (2)

Publication Number Publication Date
EP2517761A1 EP2517761A1 (en) 2012-10-31
EP2517761B1 true EP2517761B1 (en) 2016-01-27

Family

ID=45571482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12305128.6A Active EP2517761B1 (en) 2011-04-27 2012-02-02 Heelpiece of a safety binding for alpine ski

Country Status (2)

Country Link
EP (1) EP2517761B1 (en)
FR (1) FR2974515B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH594423A5 (en) * 1976-04-08 1978-01-13 Herzig Werner
FR2695323B1 (en) * 1992-09-10 1994-11-04 Salomon Sa Device for supporting a boot on a ski.
FR2718047B1 (en) * 1994-03-29 1996-05-31 Salomon Sa Fastening element intended to retain the end of a shoe on a sliding board.
FR2796851B3 (en) * 1999-07-27 2001-09-28 Salomon Sa INTERFACE DEVICE BETWEEN A SHOE AND A SKI
FR2889076B1 (en) * 2005-07-29 2007-09-21 Look Fixations Sa Sa DEVICE FOR MOUNTING A FASTENING ELEMENT

Also Published As

Publication number Publication date
EP2517761A1 (en) 2012-10-31
FR2974515A1 (en) 2012-11-02
FR2974515B1 (en) 2013-04-26

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