EP0638343B1 - Device for supporting a boot on a ski - Google Patents

Device for supporting a boot on a ski Download PDF

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Publication number
EP0638343B1
EP0638343B1 EP94109591A EP94109591A EP0638343B1 EP 0638343 B1 EP0638343 B1 EP 0638343B1 EP 94109591 A EP94109591 A EP 94109591A EP 94109591 A EP94109591 A EP 94109591A EP 0638343 B1 EP0638343 B1 EP 0638343B1
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EP
European Patent Office
Prior art keywords
support plate
section
fact
housing
profiles
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Expired - Lifetime
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EP94109591A
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German (de)
French (fr)
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EP0638343A1 (en
Inventor
Gilles Renaud-Goud
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Salomon SAS
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Salomon SAS
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    • 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
    • A63C9/001—Anti-friction devices

Definitions

  • the invention relates to a device for supporting a boot on a ski, in particular but not exclusively an alpine ski.
  • the invention also relates to a ski binding equipped with such a support device.
  • a shoe is generally held on an alpine ski by fastening elements which retain its ends in a triggerable way, that is to say which release one or the other of the ends when it exerts an excessive stress.
  • the ends of the shoe also rest on support devices or support plates.
  • support devices or support plates To facilitate the release of the shoe, low friction bearing plates are generally used.
  • the support plate used for the front end is usually coated with a lining of anti-friction material, in particular polytetrafluoroethylene (which will be designated in the following PTFE).
  • anti-friction material in particular polytetrafluoroethylene (which will be designated in the following PTFE).
  • this lining on its support is a relatively delicate operation because of the non-stick properties of PTFE.
  • this assembly must withstand the climatic conditions in which the fastening elements evolve, snow, ultra-violet rays, temperature changes, etc.
  • the French patent application published under the number 2,533,832 describes the bonding of such PTFE packings using a double-sided adhesive or an adhesive of cyanoacrylate or acrylic isocyanate type.
  • the PTFE has undergone a surface pretreatment on its underside, for example a treatment with sodium naphthalene or sodium ammonia.
  • fillers are incorporated into the material of the wafer to delay the penetration of ultraviolet rays, and delay the deterioration of the bonding over time.
  • One of the objects of the invention is to propose a device for supporting a shoe, the anti-friction linings of which are mechanically assembled and are firmly held in their support.
  • Another object of the invention is to provide a support device whose assembly of the linings on their support is very simple.
  • the support device comprises at least one elongated profile made of anti-friction material, in particular PTFE, embedded in an elongated housing of a support plate which has in section a shape corresponding to the shape of the profile, with a depth less than the largest dimension in height of the profile, and which opens onto the upper surface of the support plate by a slot of width less than the largest dimension in width of the profile, so that the profile is retained in the housing , and that its upper part protrudes above the upper surface of the support plate.
  • PTFE anti-friction material
  • the support plate is made of a deformable material, that it has at least one elongated groove which is distinct from the elongated housing and which locally decreases its thickness, so that by bending of the plate support, the width of the slot in the housing can be increased to a value greater than the largest width dimension of the profile.
  • the support is bent at rest so that the support of the shoe closes with force the housings on the profiles.
  • Figure 1 shows a front attachment equipped with a support device according to a first non-limiting implementation of the invention.
  • FIG. 2 is an exploded side view, in section of the support device of FIG. 1.
  • Figure 3 illustrates the mounting of the profiles in the support plate.
  • FIG. 4 illustrates a support device according to another non-limiting mode of implementation of the invention.
  • FIG. 5 is a side view in section of the device of FIG. 4.
  • Figure 6 illustrates an alternative embodiment
  • Figures 7 to 9 show different shapes of profiles.
  • FIGS 10 to 12 illustrate alternative embodiments of the invention.
  • Figure 1 shows in perspective a front binding 1.
  • the binding 1 comprises a binding element 2 and a support device 3 for the sole of the shoe.
  • the fastener is of any suitable type, and will not be described in detail. Overall, it comprises a base 4, surmounted by a body 5. The body 5 carries rearwardly a jaw 6 for retaining the shoe. The binding 1 is assembled to the ski by any suitable means, for example screws which pass through holes in the base.
  • the support device 3 is attached to the base which it extends backwards. This is not, however, limiting, and the support device could be isolated, or associated with any other element.
  • the support device 3 comprises in its upper part elongate profiles 8, 9 made of anti-friction material which extend in the transverse direction of the support device.
  • the sections have constant dimensions in section over their whole length. Any suitable material is suitable for the profiles. It is possible in particular to use profiles made of PTFE (polytetrafluoroethylene) and obtained by extrusion.
  • Figures 1 to 3 show two sections 8 and 9 arranged in parallel. This is not limiting, and according to the invention, any suitable number greater than or equal to the unit and any arrangement are suitable.
  • Figure 2 also shows profiles 8 and 9 of circular section. This is also not limiting, and as will appear later, any other suitable form is also suitable.
  • the profiles 8 and 9 are carried by a support plate 10.
  • the plate 10 has a generally rectangular view from above.
  • the plate 10 has an elongate housing 11, 12.
  • the housings 11, 12 have a cross-section corresponding to that of the profiles, but with a depth substantially less than the height of the profiles. Upwards, the housings 11, 12 open out through a long slit 13, 14, the width of which is less than the maximum width of the profiles. In this way, the profiles are embedded in the support plate 10, and their upper part projects upwards through slots 13, 14.
  • the housings 11 and 12 open laterally on each side of the support plate 10.
  • the support plate 10 has at its lower part a slender groove 15 which extends parallel to the housings 11 and 12.
  • the groove 15 is located between the housings 11 and 12. It has a rectangular section, and its upper edges are located near the housings 11 and 12. This, however, is not limiting.
  • the groove 15 and the housings 11, 12 locally reduce the thickness of the support plate and facilitate its bending as shown in FIG. 3.
  • Such bending produced in a plane perpendicular to the direction of the housings 11 and 12, with a curvature oriented on the opposite side to the housings, causes a deformation in section of the housings, and in particular an opening of the slots 13 and 14.
  • Such an opening allows the introduction of the profiles 8 and 9 into the housings 11 and 12. If one releases bending, the housings resume their initial shape, that is to say that they close on the profiles thus ensuring their maintenance.
  • the support plate 10 is made of a relatively deformable material such as, for example, a polyamide.
  • a relatively deformable material such as, for example, a polyamide.
  • This aptitude for deformation indeed allows it to flex as shown in FIG. 3.
  • the material is also relatively hard in the thickness direction of the support plate, so that on the one hand it holds the profiles firmly by closing, and that on the other hand, it offers the shoe stable and firm support.
  • the support plate is then mounted on an element such as a base plate 18 which will be described later in more detail.
  • This element has a long rib 17 of dimensions in section corresponding to the dimensions of the groove 15. This rib is intended to receive the groove 15 by interlocking, which achieves a sort of locking of the profiles in their housing, since any bending of the plate support 10 is then hampered.
  • the support plate 10 is substantially bent in the direction of the flexion described above.
  • This bending can be obtained by bending which is given during the manufacture of the support plate. It can also come from housings 11 and 12 which, in section and in a horizontal plane, have dimensions substantially smaller than the dimensions of the profiles, so that the profiles slightly force the housings to open.
  • the support plate 10 is assembled to the rest of the fixing by any suitable means.
  • the support plate is mounted above a base plate 18, the front part of which engages under the base of the fixing element.
  • the base plate 18 carries an elongated rib 17.
  • a covering cover 20 also holds the support plate 10 assembled to the base plate 18.
  • the cover 20 has in its upper part an opening 21 whose dimensions are substantially the same as the dimensions of the support plate seen from above.
  • the vertical retention of the support plate is for example produced by longitudinal edges 23 and 24 that the support plate 10 has at its base, which are housed in recesses 25, 26 of corresponding shape of the cover 20.
  • the cover is assembled to the rest of the fixing by any suitable means.
  • the cover is assembled to the base plate 18 by elastic deformation by means of small tabs which fit into corresponding housings of the base plate. These tabs are carried by the side panels 28, 29 of the cover. This however is not limiting.
  • the side panels 28 and 29 of the cover rise up to partially close the housings 11, 12, while however leaving the upper part of the profiles 8, 9 projecting. This guarantees the transverse maintenance of the profiles in their respective housings.
  • FIG. 4 represents another implementation of the invention.
  • the support plate 40, the housings 41, 42 for the profiles 48, 49 and the opening 51 of the cover 50 are curved in an arc of circle approximately centered on the heel of the shoe.
  • the mounting of the profiles 48 and 49 in the support plate 40 and the assembly of the support plate 40 between the base plate 18 and the cover 50 are similar to what has been described above.
  • Figure 6 shows an alternative embodiment.
  • the support plate 60 has a curved shape like the plate of the previous figure.
  • the housings 62 and 63 have locally a claw 64, 65 of annular shape. These claws are produced during the manufacture by molding of the support plate, at the joint plane of the pins which are used to shape the housings.
  • FIG. 6 shows diagrammatically at 66 and 67 such pins, the teeth of which each make half the length of a housing 62, 63. As can be seen in the figure, the ends of the teeth are chamfered to form the claw annular by halves.
  • the claws 64 and 65 penetrate into the material of the profiles, which improves their resistance in their housing by preventing any lateral sliding.
  • FIGS 7 to 9 show different shapes of profiles and illustrate the fact that one can choose this shape relatively freely.
  • FIG. 7 shows a section 70 of oval shape whose large dimension in section is horizontal. This oval shape increases the contact area with the shoe.
  • FIGS. 8 and 9 show a section 71, 72 which provides the shoe sole with a substantially flat bearing area.
  • These profiles are in two parts, a lower part, respectively 73, 74 which is embedded in a correspondingly shaped housing of the support plate, and an upper part, respectively 75, 76 projecting above the support plate.
  • the lower part 73 has a rounded shape, while the lower part 74 has in section a shape with angles.
  • FIG. 10 illustrates an alternative embodiment, according to which the support plate 80 has on its lower surface a groove 80 of great width.
  • the thickness of the support plate in the area of the housing for the profiles is reduced, which facilitates the bending of the support plate, the opening of the housing and the positioning of the profiles.
  • Figure 11 shows another variant in which the support plate 82 has a groove 83, 84 at the bottom of each housing 85, 86 of profile.
  • These grooves 83 and 84 reduce the thickness of the support plate 82 in the area of the housings.
  • the support plate 82 is placed on a smooth base plate.
  • FIG. 12 shows an alternative embodiment according to which two grooves 89, 90 open into each housing radially.
  • the support plate is curved, at least after the profiles are put in place, to ensure that the profiles are held under the support of the shoe.
  • the number of profiles is not limiting. It is the same for the number of grooves 15, that is to say that one could have on the lower surface of the support plate several grooves such as groove 15, distributed in parallel.

Abstract

Device for supporting a boot on a ski, comprising at least one elongated section (8, 9) made of non-stick material, especially PTFE, flush-mounted in a support plate (10, 40, 60) in an elongated housing (11, 12) which has a cross-sectional shape corresponding to the shape of the section, with a depth which is less than the largest height dimension of the section, and which opens at the upper surface of the support plate in a slot (13, 14) whose width is smaller than the largest width dimension of the section, so that the section is held in the housing, and so that its upper part projects above the upper surface of the support plate. The support plate is made of a flexible material and it has an elongated groove (15) on its lower surface, which groove locally decreases its thickness so that, by bending the support plate, the width of the slot in the housing can be increased to a value which is greater than the largest width dimension of the section (13, 14). The support plate preferably rests on a rib (17) which interlocks in the groove (15). <IMAGE>

Description

L'invention concerne un dispositif d'appui d'une chaussure sur un ski, notamment mais non exclusivement un ski alpin.The invention relates to a device for supporting a boot on a ski, in particular but not exclusively an alpine ski.

L'invention concerne également une fixation de ski équipée d'un tel dispositif d'appui.The invention also relates to a ski binding equipped with such a support device.

Une chaussure est généralement maintenue sur un ski alpin par des éléments de fixation qui retiennent ses extrémités de façon déclenchable, c'est-à-dire qui libèrent l'une ou l'autre des extrémités lorsqu'elle exerce une contrainte excessive. Les extrémités de la chaussure reposent en outre sur des dispositifs d'appui ou plaques d'appui. Pour faciliter la libération de la chaussure, on utilise généralement des plaques d'appui à faible frottement.A shoe is generally held on an alpine ski by fastening elements which retain its ends in a triggerable way, that is to say which release one or the other of the ends when it exerts an excessive stress. The ends of the shoe also rest on support devices or support plates. To facilitate the release of the shoe, low friction bearing plates are generally used.

En particulier, la plaque d'appui utilisée pour l'extrémité avant est habituellement revêtue d'une garniture de matériau anti-friction, notamment en polytétrafluoréthylène (qui sera désigné dans la suite PTFE).In particular, the support plate used for the front end is usually coated with a lining of anti-friction material, in particular polytetrafluoroethylene (which will be designated in the following PTFE).

L'assemblage de cette garniture sur son support est une opération relativement délicate à cause des propriétés anti-adhérentes du PTFE. En outre, cet assemblage doit résister aux conditions climatiques dans lesquelles les éléments de fixation évoluent, neige, rayons ultra-violets, changements de température, etc...The assembly of this lining on its support is a relatively delicate operation because of the non-stick properties of PTFE. In addition, this assembly must withstand the climatic conditions in which the fastening elements evolve, snow, ultra-violet rays, temperature changes, etc.

La demande de brevet français publiée sous le numéro 2 533 832 décrit le collage de telles garnitures de PTFE au moyen d'un adhésif double face ou d'une colle de type cyanoacrylate ou isocyanate acrylique. Pour améliorer l'efficacité et la tenue du collage, la PTFE a subi sur sa face inférieure un pré-traitement de surface, par exemple un traitement au sodium naphtalène ou sodium amoniaque. En outre, des charges sont incorporées dans la matière de la plaquette pour retarder la pénétration des rayons ultra-violets, et retarder la détérioration du collage dans le temps.The French patent application published under the number 2,533,832 describes the bonding of such PTFE packings using a double-sided adhesive or an adhesive of cyanoacrylate or acrylic isocyanate type. To improve the effectiveness and the bonding strength, the PTFE has undergone a surface pretreatment on its underside, for example a treatment with sodium naphthalene or sodium ammonia. In addition, fillers are incorporated into the material of the wafer to delay the penetration of ultraviolet rays, and delay the deterioration of the bonding over time.

Cette technique donne de bons résultats, mais sa mise en oeuvre est relativement complexe et coûteuse.This technique gives good results, but its implementation is relatively complex and costly.

On connaît aussi d'après la demande de brevet français publiée sous le numéro 2 615 748 un dispositif d'appui présentant une garniture de PTFE qui est assemblée à un support par un processus mécanique, notamment par encliquetage, emboutissage, rivetage, encastrement etc....Also known from the French patent application published under the number 2 615 748 a support device having a PTFE lining which is assembled to a support by a mechanical process, in particular by snap-fastening, stamping, riveting, embedding etc. ...

Cette technique présente l'avantage d'éviter l'opération de collage. Cependant, les garnitures de PTFE n'étant plus collées, il est nécessaire que le processus d'assemblage permette d'une part un montage facile des garnitures dans leur support, et d'autre part assure une tenue fiable des garnitures dans leur support.This technique has the advantage of avoiding the bonding operation. However, since the PTFE packings are no longer glued, it is necessary for the assembly process to allow, on the one hand, easy mounting of the packings in their support, and on the other hand ensures reliable hold of the packings in their support.

En effet, dans le cas où la fixation est utilisée avec une chaussure usagée, le frottement entre les garnitures et la semelle de chaussure augmente. Il faut éviter dans ce cas que la chaussure entraîne latéralement les garnitures hors de leur support.Indeed, in the case where the binding is used with a used shoe, the friction between the linings and the shoe sole increases. In this case, the shoe must be prevented from driving the linings laterally out of their support.

Un des buts de l'invention est de proposer un dispositif d'appui d'une chaussure dont les garnitures antifriction sont assemblées mécaniquement et sont fermement maintenues dans leur support.One of the objects of the invention is to propose a device for supporting a shoe, the anti-friction linings of which are mechanically assembled and are firmly held in their support.

Un autre but de l'invention est de proposer un dispositif d'appui dont l'assemblage des garnitures sur leur support est très simple.Another object of the invention is to provide a support device whose assembly of the linings on their support is very simple.

D'autres buts et avantages de l'invention apparaîtront au cours de la description qui va suivre, cette description étant cependant donnée à titre indicatif et non limitatif.Other objects and advantages of the invention will appear during the description which follows, this description being however given by way of non-limiting indication.

Conformément à l'invention, le dispositif d'appui comprend au moins un profilé longiligne en matière antifriction, notamment du PTFE, encastré dans un logement longiligne d'une plaque de support qui présente en section une forme correspondante à la forme du profilé, avec une profondeur inférieure à la plus grande dimension en hauteur du profilé, et qui débouche à la surface supérieure de la plaque support par une fente de largeur inférieure à la plus grande dimension en largeur du profilé, de façon que le profilé soit retenu dans le logement, et que sa partie supérieure fasse saillie au dessus de la surface supérieure de la plaque support.According to the invention, the support device comprises at least one elongated profile made of anti-friction material, in particular PTFE, embedded in an elongated housing of a support plate which has in section a shape corresponding to the shape of the profile, with a depth less than the largest dimension in height of the profile, and which opens onto the upper surface of the support plate by a slot of width less than the largest dimension in width of the profile, so that the profile is retained in the housing , and that its upper part protrudes above the upper surface of the support plate.

Il est caractérisé par le fait que la plaque de support est réalisée en un matériau déformable, qu'elle présente au moins une rainure longiligne qui est distincte du logement longiligne et qui diminue localement son épaisseur, de telle façon que par flexion de la plaque de support, la largeur de la fente du logement puisse être agrandie à une valeur supérieure à la plus grande dimension en largeur du profilé.It is characterized by the fact that the support plate is made of a deformable material, that it has at least one elongated groove which is distinct from the elongated housing and which locally decreases its thickness, so that by bending of the plate support, the width of the slot in the housing can be increased to a value greater than the largest width dimension of the profile.

Selon une autre caractéristique de l'invention, le support est cintré au repos de façon que l'appui de la chaussure referme avec force les logements sur les profilés.According to another characteristic of the invention, the support is bent at rest so that the support of the shoe closes with force the housings on the profiles.

L'invention sera mieux comprise en se référant à la description ci dessous et aux dessins en annexe qui en font partie intégrante.The invention will be better understood by referring to the description below and to the accompanying drawings which form an integral part thereof.

La figure 1 représente une fixation avant équipée d'un dispositif d'appui selon une première mise en oeuvre non limitative de l'invention.Figure 1 shows a front attachment equipped with a support device according to a first non-limiting implementation of the invention.

La figure 2 est une vue éclatée de côté, en coupe du dispositif d'appui de la figure 1.FIG. 2 is an exploded side view, in section of the support device of FIG. 1.

La figure 3 illustre le montage des profilés dans la plaque support.Figure 3 illustrates the mounting of the profiles in the support plate.

La figure 4 illustre un dispositif d'appui selon un autre mode non limitatif de mise en oeuvre de l'invention.FIG. 4 illustrates a support device according to another non-limiting mode of implementation of the invention.

La figure 5 est une vue de côté en coupe du dispositif de la figure 4.FIG. 5 is a side view in section of the device of FIG. 4.

La figure 6 illustre une variante de réalisation.Figure 6 illustrates an alternative embodiment.

Les figures 7 à 9 représentent différentes formes de profilés.Figures 7 to 9 show different shapes of profiles.

Les figures 10 à 12 illustrent des variantes de mise en oeuvre de l'invention.Figures 10 to 12 illustrate alternative embodiments of the invention.

La figure 1 représente en perspective une fixation avant 1. La fixation 1 comprend un élément de fixation 2 et un dispositif d'appui 3 pour la semelle de chaussure.Figure 1 shows in perspective a front binding 1. The binding 1 comprises a binding element 2 and a support device 3 for the sole of the shoe.

L'élément de fixation est de tout type approprié, et il ne sera pas décrit en détail. Globalement, il comprend une embase 4, surmontée d'un corps 5. Le corps 5 porte vers l'arrière une mâchoire 6 de retenue de la chaussure. La fixation 1 est assemblée au ski par tout moyen approprié, par exemple des vis qui traversent des orifices de l'embase.The fastener is of any suitable type, and will not be described in detail. Overall, it comprises a base 4, surmounted by a body 5. The body 5 carries rearwardly a jaw 6 for retaining the shoe. The binding 1 is assembled to the ski by any suitable means, for example screws which pass through holes in the base.

Dans le mode de réalisation illustré, le dispositif d'appui 3 est rattaché à l'embase qu'il prolonge vers l'arrière. Ceci n'est toutefois pas limitatif, et le dispositif d'appui pourrait être isolé, ou associé à tout autre élément.In the illustrated embodiment, the support device 3 is attached to the base which it extends backwards. This is not, however, limiting, and the support device could be isolated, or associated with any other element.

En se reportant aux figures, le dispositif d'appui 3 comprend dans sa partie supérieure des profilés longilignes 8, 9 en matière anti-friction qui s'étendent selon la direction transversale du dispositif d'appui. Avantageusement, les profilés ont en section des dimensions constantes sur toute leur longueur. Tout matériau approprié convient pour les profilés. On peut utiliser notamment des profilés réalisés en PTFE (polytétrafluoréthylène) et obtenus par extrusion.Referring to the figures, the support device 3 comprises in its upper part elongate profiles 8, 9 made of anti-friction material which extend in the transverse direction of the support device. Advantageously, the sections have constant dimensions in section over their whole length. Any suitable material is suitable for the profiles. It is possible in particular to use profiles made of PTFE (polytetrafluoroethylene) and obtained by extrusion.

Les figures 1 à 3 représentent deux profilés 8 et 9 disposés de façon parallèle. Ceci n'est pas limitatif, et selon l'invention, tout nombre approprié supérieur ou égal à l'unité et toute disposition conviennent.Figures 1 to 3 show two sections 8 and 9 arranged in parallel. This is not limiting, and according to the invention, any suitable number greater than or equal to the unit and any arrangement are suitable.

La figure 2 représente en outre des profilés 8 et 9 de section circulaire. Ceci n'est pas non plus limitatif, et comme cela apparaîtra plus loin, toute autre forme approprié convient également.Figure 2 also shows profiles 8 and 9 of circular section. This is also not limiting, and as will appear later, any other suitable form is also suitable.

Les profilés 8 et 9 sont portés par une plaque support 10. La plaque 10 présente vue de dessus une forme globalement rectangulaire. Pour chaque profilé 8, 9, la plaque 10 présente un logement longiligne 11, 12. Les logements 11, 12 ont une section de forme correspondant à celle des profilés, mais avec une profondeur sensiblement inférieure à la la hauteur des profilés. Vers le haut, les logements 11, 12 débouchent par une fente longiligne 13, 14, dont la largeur est inférieure à la largeur maximale des profilés. De cette façon, les profilés sont encastrés dans la plaque support 10, et leur partie supérieure fait saillie vers le haut au travers des fentes 13, 14. De préférence, les logements 11 et 12 débouchent latéralement de chaque côté de la plaque support 10.The profiles 8 and 9 are carried by a support plate 10. The plate 10 has a generally rectangular view from above. For each profile 8, 9, the plate 10 has an elongate housing 11, 12. The housings 11, 12 have a cross-section corresponding to that of the profiles, but with a depth substantially less than the height of the profiles. Upwards, the housings 11, 12 open out through a long slit 13, 14, the width of which is less than the maximum width of the profiles. In this way, the profiles are embedded in the support plate 10, and their upper part projects upwards through slots 13, 14. Preferably, the housings 11 and 12 open laterally on each side of the support plate 10.

Avantageusement, la plaque support 10 présente à sa partie inférieure une rainure 15 longiligne qui s'étend parallèlement aux logements 11 et 12. Dans le cas des figures 1 à 3, la rainure 15 est située entre les logements 11 et 12. Elle présente une section rectangulaire, et ses arètes supérieures sont situées à proximité des logements 11 et 12. Ceci, cependant, n'est pas limitatif.Advantageously, the support plate 10 has at its lower part a slender groove 15 which extends parallel to the housings 11 and 12. In the case of FIGS. 1 to 3, the groove 15 is located between the housings 11 and 12. It has a rectangular section, and its upper edges are located near the housings 11 and 12. This, however, is not limiting.

La rainure 15 et les logements 11, 12 diminuent localement l'épaisseur de la plaque support et facilitent sa flexion ainsi que le représente la figure 3. Une telle flexion réalisée dans un plan perpendiculaire à la direction des logements 11 et 12, avec une courbure orientée du côté opposé aux logements, provoque une déformation en section des logements, et en particulier une ouverture des fentes 13 et 14. Une telle ouverture permet l'introduction des profilés 8 et 9 dans les logements 11 et 12. Si l'on relâche la flexion, les logements reprennent leur forme initiale, c'est-à-dire qu'ils se referment sur les profilés assurant ainsi leur maintien.The groove 15 and the housings 11, 12 locally reduce the thickness of the support plate and facilitate its bending as shown in FIG. 3. Such bending produced in a plane perpendicular to the direction of the housings 11 and 12, with a curvature oriented on the opposite side to the housings, causes a deformation in section of the housings, and in particular an opening of the slots 13 and 14. Such an opening allows the introduction of the profiles 8 and 9 into the housings 11 and 12. If one releases bending, the housings resume their initial shape, that is to say that they close on the profiles thus ensuring their maintenance.

De préférence, la plaque support 10 est réalisée en un matériau relativement déformable tel que, par exemple, un polyamide. Cette aptitude à la déformation lui permet en effet de fléchir comme le montre la figure 3. Toutefois, le matériau est aussi relativement dur dans le sens de l'épaisseur de la plaque de support, pour que d'une part elle maintienne fermement les profilés en se refermant, et que d'autre part, elle offre à la chaussure un soutien stable et ferme.Preferably, the support plate 10 is made of a relatively deformable material such as, for example, a polyamide. This aptitude for deformation indeed allows it to flex as shown in FIG. 3. However, the material is also relatively hard in the thickness direction of the support plate, so that on the one hand it holds the profiles firmly by closing, and that on the other hand, it offers the shoe stable and firm support.

La plaque support est montée ensuite sur un élément tel qu'une plaque de base 18 qui sera décrite ultérieurement plus en détail. Cet élément présente une nervure longiligne 17 de dimensions en section correspondant aux dimensions de la rainure 15. Cette nervure est destinée à recevoir la rainure 15 par emboîtement, ce qui réalise une sorte de verrouillage des profilés dans leur logement, puisque toute flexion de la plaque support 10 est alors entravée.The support plate is then mounted on an element such as a base plate 18 which will be described later in more detail. This element has a long rib 17 of dimensions in section corresponding to the dimensions of the groove 15. This rib is intended to receive the groove 15 by interlocking, which achieves a sort of locking of the profiles in their housing, since any bending of the plate support 10 is then hampered.

De préférence également, au repos, la plaque support 10 est sensiblement cintrée dans le sens de la flexion précédemment décrite. Ce cintrage peut être obtenu par un cintrage qui est donné lors de la fabrication de la plaque support. Il peut aussi provenir de logements 11 et 12 qui, en section et dans un plan horizontal, présentent des dimensions sensiblement inférieures aux dimensions des profilés, de façon que les profilés forcent légèrement les logements à s'ouvrir.Preferably also, at rest, the support plate 10 is substantially bent in the direction of the flexion described above. This bending can be obtained by bending which is given during the manufacture of the support plate. It can also come from housings 11 and 12 which, in section and in a horizontal plane, have dimensions substantially smaller than the dimensions of the profiles, so that the profiles slightly force the housings to open.

Ce cintrage de la plaque support est éliminé en présence de la chaussure, ou bien par les éléments de maintien de la plaque support qui vont être décrits ci-après, ou bien par l'appui vertical de la chaussure. Quoiqu'il en soit, cette action force les logements à se refermer contre les profilés d'où une adhérence plus forte entre les profilés et leur logement.This bending of the support plate is eliminated in the presence of the shoe, either by the holding elements of the support plate which will be described below, or by the vertical support of the shoe. Anyway, this action forces the housings to close against the profiles where a stronger adhesion between the profiles and their housing.

La plaque support 10 est assemblée au reste de la fixation par tout moyen approprié. Par exemple, tel que cela est illustré dans les figures, la plaque support est montée au dessus d'une plaque de base 18 dont la partie avant s'engage sous l'embase de l'élément de fixation. Dans la zone de la rainure 15, la plaque de base 18 porte une nervure longiligne 17.The support plate 10 is assembled to the rest of the fixing by any suitable means. For example, as illustrated in the figures, the support plate is mounted above a base plate 18, the front part of which engages under the base of the fixing element. In the region of the groove 15, the base plate 18 carries an elongated rib 17.

Un capot d'habillage 20 maintient par ailleurs la plaque support 10 assemblée à la plaque de base 18. Le capot 20 présente dans sa partie supérieure une ouverture 21 dont les dimensions sont sensiblement les mêmes que les dimensions de la plaque support vue de dessus. La retenue verticale de la plaque support est par exemple réalisée par des rebords longitudinaux 23 et 24 que la plaque support 10 présente à sa base, qui sont logés dans des évidements 25, 26 de forme correspondante du capot 20.A covering cover 20 also holds the support plate 10 assembled to the base plate 18. The cover 20 has in its upper part an opening 21 whose dimensions are substantially the same as the dimensions of the support plate seen from above. The vertical retention of the support plate is for example produced by longitudinal edges 23 and 24 that the support plate 10 has at its base, which are housed in recesses 25, 26 of corresponding shape of the cover 20.

Le capot est assemblé au reste de la fixation par tout moyen approprié. Par exemple, le capot est assemblé à la plaque de base 18 par déformation élastique au moyen de petites pattes qui s'emboîtent dans des logements correspondant de la plaque de base. Ces pattes sont portées par les pans latéraux 28, 29 du capot. Ceci cependant n'est pas limitatif.The cover is assembled to the rest of the fixing by any suitable means. For example, the cover is assembled to the base plate 18 by elastic deformation by means of small tabs which fit into corresponding housings of the base plate. These tabs are carried by the side panels 28, 29 of the cover. This however is not limiting.

Eventuellement, les pans latéraux 28 et 29 du capot remontent jusqu'à obturer en partie les logements 11, 12, tout en laissant cependant la partie supérieure des profilés 8, 9 en saillie. Ceci garantit le maintien transversal des profilés dans leur logement respectif.Optionally, the side panels 28 and 29 of the cover rise up to partially close the housings 11, 12, while however leaving the upper part of the profiles 8, 9 projecting. This guarantees the transverse maintenance of the profiles in their respective housings.

La figure 4 représente une autre mise en oeuvre de l'invention. Selon cette variante, la plaque support 40, les logements 41, 42 pour les profilés 48, 49 et l'ouverture 51 du capot 50 sont incurvés en arc de cercle approximativement centré sur le talon de la chaussure. Le montage des profilés 48 et 49 dans la plaque support 40 et l'assemblage de la plaque support 40 entre la plaque de base 18 et le capot 50 sont semblables à ce qui a été décrit précédemment.FIG. 4 represents another implementation of the invention. According to this variant, the support plate 40, the housings 41, 42 for the profiles 48, 49 and the opening 51 of the cover 50 are curved in an arc of circle approximately centered on the heel of the shoe. The mounting of the profiles 48 and 49 in the support plate 40 and the assembly of the support plate 40 between the base plate 18 and the cover 50 are similar to what has been described above.

La figure 6 représente une variante de réalisation. Selon cette variante, la plaque support 60 a une forme incurvée comme la plaque de la figure précédente. En outre, les logements 62 et 63 présentent localement une griffe 64, 65 de forme annulaire. Ces griffes sont réalisées lors de la fabrication par moulage de la plaque support, au niveau du plan de joint des broches qui sont utilisées pour façonner les logements. La figure 6 schématise en 66 et 67 de telles broches, dont les dents réalisent chacune la moitié de la longueur d'un logement 62, 63. Ainsi que cela est visible dans la figure, l'extrémité des dents est chanfreinée pour former la griffe annulaire par moitiés.Figure 6 shows an alternative embodiment. According to this variant, the support plate 60 has a curved shape like the plate of the previous figure. In addition, the housings 62 and 63 have locally a claw 64, 65 of annular shape. These claws are produced during the manufacture by molding of the support plate, at the joint plane of the pins which are used to shape the housings. FIG. 6 shows diagrammatically at 66 and 67 such pins, the teeth of which each make half the length of a housing 62, 63. As can be seen in the figure, the ends of the teeth are chamfered to form the claw annular by halves.

Lors de la mise en place des profilés dans les logements, les griffes 64 et 65 pénètrent dans la matière des profilés, ce qui améliore leur tenue dans leur logement en empêchant tout glissement latéral.When the profiles are placed in the housings, the claws 64 and 65 penetrate into the material of the profiles, which improves their resistance in their housing by preventing any lateral sliding.

Les figures 7 à 9 représentent différentes formes de profilés et illustrent le fait qu'on peut choisir cette forme de façon relativement libre.Figures 7 to 9 show different shapes of profiles and illustrate the fact that one can choose this shape relatively freely.

La figure 7 représente un profilé 70 de forme ovale dont la grande dimension en section est horizontale. Cette forme ovale permet d'augmenter la zone de contact avec la chaussure. Egalement dans ce but, les figures 8 et 9 représentent un profilé 71, 72 qui offre à la semelle de chaussure une zone d'appui sensiblement plane. Ces profilés sont en deux parties, une partie inférieure, respectivement 73, 74 qui est noyée dans un logement de forme correspondante de la plaque support, et une partie supérieure, respectivement 75, 76 en saillie au dessus de la plaque support. La partie inférieure 73 présente une forme arrondie, alors que la partie inférieure 74 a en section une forme avec des angles.FIG. 7 shows a section 70 of oval shape whose large dimension in section is horizontal. This oval shape increases the contact area with the shoe. Also for this purpose, FIGS. 8 and 9 show a section 71, 72 which provides the shoe sole with a substantially flat bearing area. These profiles are in two parts, a lower part, respectively 73, 74 which is embedded in a correspondingly shaped housing of the support plate, and an upper part, respectively 75, 76 projecting above the support plate. The lower part 73 has a rounded shape, while the lower part 74 has in section a shape with angles.

Naturellement, toute autre forme appropriée de profilé convient.Naturally, any other suitable form of profile is suitable.

La figure 10 illustre une variante de réalisation, selon laquelle la plaque support 80 présente à sa surface inférieure une rainure 80 de grande largeur.FIG. 10 illustrates an alternative embodiment, according to which the support plate 80 has on its lower surface a groove 80 of great width.

L'épaisseur de la plaque support dans la zone des logements pour les profilés est diminuée, ce qui facilite la flexion de la plaque support, l'ouverture des logements et la mise en place des profilés.The thickness of the support plate in the area of the housing for the profiles is reduced, which facilitates the bending of the support plate, the opening of the housing and the positioning of the profiles.

Lorsque la plaque support 80 est en place dans l'élément de fixation, sa flexibilité joue en sens inverse pour maintenir fermement les profilés dans leur logement.When the support plate 80 is in place in the fastening element, its flexibility works in the opposite direction to firmly maintain the profiles in their housing.

La figure 11 montre une autre variante selon laquelle la plaque support 82 présente une rainure 83, 84 au fond de chaque logement 85, 86 de profilé.Figure 11 shows another variant in which the support plate 82 has a groove 83, 84 at the bottom of each housing 85, 86 of profile.

Ces rainures 83 et 84 diminuent l'épaisseur de la plaque support 82 dans la zone des logements.These grooves 83 and 84 reduce the thickness of the support plate 82 in the area of the housings.

Dans ce cas, la plaque de support 82 est mise en place sur une plaque de base lisse.In this case, the support plate 82 is placed on a smooth base plate.

La figure 12 représente une variante de mise en oeuvre selon laquelle deux rainures 89, 90 débouchent dans chaque logement de façon radiale.FIG. 12 shows an alternative embodiment according to which two grooves 89, 90 open into each housing radially.

De préférence, pour les modes de réalisation des figures 10 à 12, la plaque support est cintrée, au moins après mise en place des profilés, pour assurer le maintien des profilés sous l'appui de la chaussure.Preferably, for the embodiments of FIGS. 10 to 12, the support plate is curved, at least after the profiles are put in place, to ensure that the profiles are held under the support of the shoe.

L'invention n'est pas limitée aux différents modes de réalisation qui ont été décrits, et de nombreuses autres variantes sont à la portée de l'homme du métier dans la limite des revendications.The invention is not limited to the various embodiments which have been described, and many other variants are within the reach of those skilled in the art within the limits of the claims.

En particulier, le nombre des profilés n'est pas limitatif. Il en est de même pour le nombre de rainures 15, c'est-à-dire que l'on pourrait avoir à la surface inférieure de la plaque support plusieurs rainures telles que la rainure 15, réparties de façon parallèle.In particular, the number of profiles is not limiting. It is the same for the number of grooves 15, that is to say that one could have on the lower surface of the support plate several grooves such as groove 15, distributed in parallel.

Claims (10)

  1. Device for supporting a boot on a ski, comprising at least one longilinear section made of an anti-friction material (8, 9, 48, 49, 70, 71, 72) in particular of PTFE, embedded in a support plate (10, 40, 60) in a longilinear housing (11, 12, 62, 63, 41, 42, 85, 86) whose cross-section has a shape corresponding to the shape of the section, with a depth smaller than the largest height dimension of the section, and which opens at the upper surface of the support plate through a slot (13, 14) having a width smaller than the largest width dimension of the section, so that the section is retained in the housing, and that its upper part projects above the upper surface of the support plate, characterized by the fact that the support plate is made of a deformable material, that it has at least one longilinear groove (15, 81, 83, 84, 89, 90) which is distinct from the longilinear housing (11, 12, 62, 63, 41, 42, 85, 86) and which reduces its thickness locally, so that, by flection of the support plate, the width of the slot of the housing can be enlarged to a value greater than the largest width dimension of the section.
  2. Device according to claim 1, characterized by the fact that the support plate (10) rests on a rib (17) which is embedded in the groove (15).
  3. Device according to claim 1, characterized by the fact that the support plate (10) is flexed when at rest.
  4. Device according to claim 3, characterized by the fact that, in cross-section, the housings (11, 12) have a width slightly smaller than the width of a section (8, 9).
  5. Device according to claim 1, characterized by the fact that the housings (62, 63) incorporate an annular claw (64, 65).
  6. Device according to claim 1, characterized by the fact that the sections (48, 49) are incurved.
  7. Device according to claim 1, characterized by the fact that the sections (70) have an oval cross-section.
  8. Device according to claim 1, characterized by the fact that the sections (71, 72) have a cross-section whose upper part is flat.
  9. Device according to claim 1, characterized by the fact that the support plate (82) incorporates at least one groove (83, 84, 89, 90) which opens into the housing (85, 86) of a section.
  10. Ski binding, characterized by the fact that it is equipped with a support device according to any one of the preceding claims.
EP94109591A 1993-08-13 1994-06-22 Device for supporting a boot on a ski Expired - Lifetime EP0638343B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9310057 1993-08-13
FR9310057A FR2708867B1 (en) 1993-08-13 1993-08-13 Device for supporting a boot on a ski.

Publications (2)

Publication Number Publication Date
EP0638343A1 EP0638343A1 (en) 1995-02-15
EP0638343B1 true EP0638343B1 (en) 1997-03-05

Family

ID=9450265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94109591A Expired - Lifetime EP0638343B1 (en) 1993-08-13 1994-06-22 Device for supporting a boot on a ski

Country Status (5)

Country Link
EP (1) EP0638343B1 (en)
JP (1) JPH0759896A (en)
AT (1) ATE149370T1 (en)
DE (1) DE69401869T2 (en)
FR (1) FR2708867B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2142678B2 (en) * 1971-08-25 1979-04-05 Jean Joseph Alfred Nevers Nievre Beyl (Frankreich) Slide plate for release bindings
FR132029A (en) * 1974-03-29 1900-01-01
FR2615748B1 (en) * 1987-05-25 1990-09-28 Plastic Omnium Cie SUPPORT PART FOR SKI BINDING, COMPRISING A LOW FRICTION COATING
FR2652508B1 (en) * 1989-09-29 1992-08-21 Salomon Sa SUPPORT DEVICE, ON A SKI, OF THE ANTERIOR PART OF THE SOLE OF A SHOE.

Also Published As

Publication number Publication date
DE69401869T2 (en) 1997-07-03
ATE149370T1 (en) 1997-03-15
JPH0759896A (en) 1995-03-07
FR2708867B1 (en) 1995-09-29
FR2708867A1 (en) 1995-02-17
DE69401869D1 (en) 1997-04-10
EP0638343A1 (en) 1995-02-15

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