EP0658360B1 - Intermediate device between a ski and the binding - Google Patents

Intermediate device between a ski and the binding Download PDF

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Publication number
EP0658360B1
EP0658360B1 EP94118093A EP94118093A EP0658360B1 EP 0658360 B1 EP0658360 B1 EP 0658360B1 EP 94118093 A EP94118093 A EP 94118093A EP 94118093 A EP94118093 A EP 94118093A EP 0658360 B1 EP0658360 B1 EP 0658360B1
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EP
European Patent Office
Prior art keywords
ski
lever
levers
boot
stops
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP94118093A
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German (de)
French (fr)
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EP0658360A1 (en
Inventor
Joel Arduin
Vincent Dogat
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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
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/075—Vibration dampers

Definitions

  • the invention relates to an interface device intended to modify the natural distribution of a ski over its sliding surface.
  • the skis which are used for the practice of alpine skiing consist of boards relatively long, on which the skier's shoes are retained by front fasteners and back. Shoes and fasteners are approximately in the area ski median.
  • the skis present in themselves, at rest, a natural camber, by which the middle zone is naturally raised from the front end of the ski, or tip, and the rear end of the ski, or heel.
  • the skis have flexibility, which is due to their internal structure. When skiing, the ski deforms elastically in response to different stresses to which it is subjected on the part of the skier, but also on the part of the terrain on which it slides.
  • interface devices which are interposed between the binding elements and the ski.
  • Such interfaces are for example known from patent applications published under numbers WO 83/03360, EP 492 658, EP 409 749. These devices modify the flexibility of the ski beam, by stiffening, or with a damping effect. However, these devices act in a way passive, that is to say that they only react to a determined flexion of the ski.
  • This device comprises a longitudinal beam raised relative to the ski.
  • the rear end of the beam is integral with the ski, and its front end is connected by a block of damping material which is subjected to shear.
  • This device absorbs bending deformations ski. It also absorbs the shoe vertically. But this amortization is relatively steep because of the rigid structure of the beam.
  • connection plate is connected to the base of the fixing by a retaining element such as a spring or a material working in shearing.
  • connection plate is constructed like a kneepad which is closed by the shoe and which opens by itself as soon as the shoe is released.
  • Another improvement of this device consisted in interposing between the rocker and the base of the fastening element one or more pre-stressed springs which absorb excessive stresses that the probe transmits to the base.
  • the knee brace eliminates the reaction that this preload induced in the ski as soon as the boot is released from its fastening elements which hold back.
  • the present invention provides an interface device which influences the pressure distribution of the skiing on snow, and whose structure is simplified compared to existing devices.
  • Another object of the invention is to propose an interface device which has characteristics high vertical and longitudinal damping in the transmission of stresses between the ski and the shoe.
  • the interface is constructed like a leg of link extending between two stops connected to the ski.
  • the connecting leg has at least two levers hinged together, and the central link between the levers is kept suspended above the ski.
  • the central link is designed to transmit the forces from one lever to the other in a longitudinal direction, and that it is provided to allow relative angular movement angle limited between the two levers, that the elastic return means exerts on one of the levers a sufficient restoring force to keep the central joint suspended.
  • This construction method makes it possible to obtain dynamic stiffening characteristics longitudinal of the ski and vertical damping of the boot, without using a transmission efforts by means of a rocker.
  • the transmitted forces can however have an intensity high, since the connecting leg looks like a kind of knee joint articulated in its central part.
  • a compressible element interposed between the ski and one levers of the connecting leg exerts on the lever in question a vertical upward force, of so as to keep the central joint suspended.
  • this compressible element transmits locally skiing part of the vertical forces coming from the boot.
  • This element compressible may also have damping or viscoelastic characteristics, and therefore contribute to the vertical cushioning of the shoe. This amortization is improved due to that the connecting leg is constructed in two articulated levers.
  • the central link between the levers is disengageable, which makes the interface temporarily inactive.
  • it is the pedal actuation of the ski brake which also controls this declutching, so that the interface is not really active only in the presence of the shoe.
  • the length of the connecting leg is slightly greater than the distance between the two stops, so that the interface exerts a prestress at rest on the ski.
  • one of the abutments for supporting the connecting leg is movable in a longitudinal direction, and it is resiliently returned towards the other stop. This advantageously makes it possible to limit the action of the interface on the ski, during extremely stresses of the shoe towards the ski. Also, this limits the ascent to the boot deformations of the front part of the ski which are due to the flexing of the ski, by example on a bump.
  • the rear lever is the slide of the rear fixing element. This makes the rear end of the shoe movable vertically to activate the interface, without requesting the jaw opening mechanism.
  • the position at rest of the joint is adjusted center of the connecting leg with respect to its two ends, so that a vertical stress of the boot on the interface has a more or less pronounced effect on the pressure distribution of the ski on the snow.
  • Figure 1 shows a side view of a device according to a first non-limiting mode of implementation work of the invention.
  • Figure 2 is a top view of the device of Figure 1. The fasteners are not visible in this figure.
  • Figure 3 is an exploded perspective view which illustrates the connection between the front of the front lever and ski.
  • Figure 4 is a side view in section of the front lever, according to an alternative embodiment.
  • Figure 5 is a partial perspective view of the device of Figure 1 illustrating more particularly the connection between the two levers.
  • Figure 6 is a side view of the device of Figure 1 in the presence of the shoe and at rest.
  • Figure 7 is a side view of the device of Figure 1 in the presence of the shoe and under the action of a vertical downward bias.
  • Figure 8 shows a side view of an interface device according to an alternative embodiment of the invention.
  • Figure 9 is a view similar to Figure 8 of the device in the presence of the shoe.
  • FIG. 1 represents a ski 1, seen from the side in its central zone. Fasteners 3 and 4 are mounted on the ski in this central area.
  • the fastening elements 3 and 4 are of any suitable type.
  • the front fixing element 3 has in known manner a jaw 5 retaining the front end of the shoe.
  • the jaw is carried by a body 6, and the body is itself mounted on a base plate 7 by which the element binding is assembled to the ski.
  • the rear fixing element 4 has a jaw 8 carried by a body 9.
  • the body 9 is slidably mounted along a base plate 10 shaped as a slide oriented along the longitudinal direction of the ski, under the action of a spring called a recoil spring which repels elastically the body forward.
  • Each fixing element 3, 4 is also associated with a support plate 12, 13 on which the shoe sole rests, but these bearing plates will be described in more detail later.
  • the interface device which is the subject of the present invention is located in the central area of the ski.
  • It has a front stop and a rear stop connected integrally to the ski.
  • the front stop 14 is a base secured to the ski by any suitable means, for example screws, having on its upper surface a mounting area intended to receive the base plate 7 of the element before fixing.
  • the rear stop 15 is formed by a base which is secured to the ski by any means suitable for example with screws.
  • the base 15 extends under the base plate 10 of the element of rear attachment, and it is equipped with means for receiving the base plate 10 of the element of rear attachment 4. These means will be described in more detail later.
  • An articulated connecting leg 18 connects these two stops 14 and 15. The connecting leg is held in an elevated position relative to the upper surface of the ski.
  • the connecting leg 18 comprises two levers, a front lever and a lever rear, each connected to a front and rear stop.
  • the two levers are incompressible in nature.
  • the connecting leg has a front lever 20 constituted by a kind of elongated beam which is connected in its front part to the front stop 14 by a connection allowing pivoting of limited amplitude.
  • Figure 1 shows the sunrise before 20 in its high position. In its low position shown diagrammatically in FIG. 6, the front lift 20 is parallel to the upper surface of the ski, being raised relative to the upper surface of the ski.
  • connection between the lever 20 and the front base is of any suitable type, in particular by an axis transversal, by cooperation of complementary forms, or other.
  • Figure 3 illustrates a preferred embodiment of this connection.
  • the front stop 14 that is to say the base which carries the base plate of the fixing element, has in its rear part a recess 21 open upwards and backwards.
  • a block 22 of elastically deformable material is housed, so as to fill at least the front part of the recess.
  • the block is of any suitable material, and may have properties shock absorbing or viscoelastic.
  • the front end 23 of the lever 20 has a section reduced to the dimensions of the recess 21, of so that it can slide freely in the volume of the recess and compress the block if necessary 22.
  • the front face of the end 23 is erected to compress the block 22 by moving towards the front relative to the base 14.
  • a cover 24 made of a material elastically deformable.
  • the cover 24 has two legs 25 and 26 laterally, which descend along the lateral faces of the base 14 and fit into clearances of corresponding shape.
  • the cover 24 Towards the rear, the cover 24 has a tongue 28 which covers the front part 23 of the lever 20.
  • the tongue has towards its rear end a stud 29 which cooperates with an opening 30 of the lift 20, buttonhole shape.
  • the stud 29 can slide longitudinally in the buttonhole 30 over a limited range.
  • a transverse pin 27 ensures the mobile connection between the lever 20 and the base 14.
  • the lift can pivot from a high position to a low position.
  • a relative movement between the base 14 and the lever 20 can occur according to a longitudinal direction. This movement compresses the block 22 which, by deforming, opposes this movement.
  • the support plate 12 which supports the front end of the shoe sole is associated with the cover 24.
  • the support plate 12 is the part upper of a transverse support element 31 which rests on the base 14, on each side of the recess 21, and which passes through an opening 32 of the cover 24, so that the support plate 12 either projecting above the cover 24.
  • FIG. 4 illustrates an alternative embodiment of the lever 20.
  • the lever is in two parts 20a and 20b which are assembled by means making it possible to adjust the overall length to get up.
  • the ends of parts 20a and 20b are provided for sliding one relative to each other in a longitudinal direction, and a connecting bolt 34 crosses the assembly at the level of an orifice of the part 20a and of a longitudinal lumen of the part 20b.
  • the device according to the invention also comprises a rear lever which is articulated at the stop back.
  • the rear lever is the base plate 10 which forms the slide of the rear fixing element 4.
  • the base plate is connected to the base 15 in its part rear by connecting means which provide retention in a longitudinal direction, which further allow up and down oscillation while hampering a rolling motion of the base plate relative to the base.
  • these means are represented in the form two legs 35 which form a rearward extension of the base plate 10, and which are engaged in housings of corresponding size that has the rear edge 36 of the base.
  • any other suitable means is suitable, for example a transverse articulation axis which connects the base plate and the base. Impeding the relative roll movements between the base plate and the base is advantageous for ensuring good transmission of forces and lateral stresses which pass between the ski and the boot.
  • the base plate 10 is moreover kept raised relative to the upper surface of the ski, or more precisely with respect to the base 15, by an elastic return means which develops on this element a moment of upward recall of sufficient intensity to maintain the base plate 10 at the suspended state in the presence of the shoe, and preferably even in the case of stresses towards the bottom exerted by the shoe on its supports.
  • This elastic return means connects the base plate and the ski, for example by means of the base 15. It absorbs the stresses which pass between the shoe. Furthermore, it locates the area of the ski which is stressed for the reaction to a stress from the elastic return means. It therefore influences the pressure distribution of the ski on the snow.
  • the elastic return means is a block 40 of material elastically compressible, which has damping properties, and preferably viscoelastic.
  • the block 40 is located towards the front of the base plate 10, between the base and the plate basic. It concentrates in this area the vertical forces that the boot transmits to the ski.
  • any other elastic return means may be suitable, for example a spring compression, or a torsion spring.
  • the base plate is retained upward by a stop.
  • this stop is formed by lateral tabs 41 of the base 15 which rise on each side of the base plate 10, and which have an inward fold.
  • the two levers 20 and 10 which form the strut are also connected at their ends. adjacent by a link.
  • This link ensures a longitudinal transmission of the forces from a lever to the other, when the levers are approximately aligned.
  • the link allows movement relative angle of reduced amplitude between the two levers.
  • the length of the connecting leg thus formed is slightly greater than the space provided between the two stops. This induces a pre-stress in the connecting leg, part of which is absorbed by the compression of the block 22.
  • the connection between the two levers is disengageable, and the interlocking or disengaging of the link is automatic with the engagement or disengagement of the shoe, so that this pre-stress is canceled in the absence of the shoe.
  • the front lever 20 which is articulated on the front by an elastic hinge, has a rear end which can fit on the front end of the lift 10 and dislodge.
  • the rear end of the lever 20 is urged upwards by an elastic return means, in the in this case a retractable lifting arm 43.
  • the front lever 20 further carries towards its rear end the support plate 13 on which the rear end of the shoe sole.
  • the nesting means are more particularly visible in Figure 5. They include for the rear end of the lever 20 two substantially perpendicular bearing faces 44 and 45. On the side of the lift 10, the fitting means comprise complementary bearing faces 46 and 47. these bearing faces preferably constitute the front end of a connecting piece 48, the end of which rear is engaged in the profile of the slide which forms the lever 10.
  • the faces 44 and 46 are intended to transmit the longitudinal forces between the two levers. When the levers are fitted, the faces 44 and 46 are substantially vertical. Preferably, one of the faces is slightly curved or beveled so as to produce a take-up of play and a compression stress during nesting.
  • the faces 45 and 47 overlap each other and ensure the vertical transmission of stresses which are perceived by the support plate 13.
  • these faces are in two parts, respectively 45a, 45b, and 47a, 47b, located on either side of the surfaces 44 and 46.
  • the lifting arm 43 is carried by the front part of the base 15. It is articulated to this base around a transverse axis, and its upper part circulates in a housing 42 which is located at the underside of the lever 20.
  • a spring 49 moreover ensures the elastic lifting of the arm 43.
  • the arm 43 constitutes the actuating member of a ski brake. As is visible in the figures, the arm 43 is extended towards the rear by two braking spades 50, which pass on each side of the ski.
  • the spring 49 is also the return spring of the ski brake as well formed in its active braking position.
  • the operation of the device is as follows. Starting from the rest position which is shown in Figure 1, the engagement of the shoe in the fasteners causes the support of the sole on the support plate 13. The lever 20 lowers, and by lowering it causes the retraction of the arm 43 and the retraction of the brake spades 50, against the return force of the spring 49. The lever 20 is lowered until it engages with the rear lever 10. The connecting leg is thus formed between the two stops or bases 14 and 15. This nominal configuration of the device is illustrated in figure 6. The articulation of the connecting leg is kept suspended under the action of the block 40 which only compressed slightly, only under the action of the weight of the skier.
  • the connecting leg has slightly compressed the compressible block 22 located at the front.
  • Block 40 transmits stresses to the ski vertical of the shoe.
  • FIG. 7 illustrates such a stress on the shoe on the leg of liaison.
  • the connecting leg also acts as a longitudinal stiffener of the ski.
  • the front unit 22 plays a damping role for this stiffener. In particular, it absorbs the flexions of the which are caused by the terrain that the ski meets. It also prevents such bending of the ski go up fully towards the connecting leg and towards the shoe.
  • the connecting leg can have more or less longitudinal action on the two bases pronounced.
  • the front block 22 retains a damping role in the event of bending of the ski.
  • the central link can also be in nominal position below the level of the links between the levers and the bases.
  • FIGS 8 and 9 illustrate an alternative embodiment.
  • the connecting leg 52 comprises a rear lever 53, a front lever 54, and a intermediate lift 55 which provides a complex central articulation of the connecting leg.
  • the rear lift is of the same type as the previous lift 10.
  • Getting up before 54 is also same type as the previous lever 20, except that its rear end is longer, and ends by a shoe 56 which comes to bear directly on the front end of the lever 53, according to a vertical direction.
  • the intermediate lever 55 is articulated at its base to the rear lever 53, around a transverse axis. he is spring-loaded upwards by a spring 57. Its front part slides in a housing 58 that the front lever has on its underside.
  • the housing 58 has in its front part a vertical bearing face 59 against which, in the presence of the boot, the intermediate lift takes support in a longitudinal direction as shown in FIG. 9.
  • the lever 55 is extended towards the rear by two braking spades, so as to form a braking device for skiing.
  • An elastically deformable block 60 is located between the rear lever 53 and the ski. This block exercises the same function as the previous block 40. Similarly, the connection between the front lift and the front attachment is of the same type as in the previous embodiment.
  • Block 60 provides a suspension elastic of the connecting leg.

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Abstract

The invention relates to an intermediate (interface) device between a ski and the bindings for holding a boot on the ski. The device comprises two stops (14, 15) intended to be connected to the ski, towards the front and the rear of the central part of the base of the ski, respectively, and a linking leg (18, 52) forming a stiffener between the two stops. The linking leg comprises at least two levers (20, 10, 54, 53), connected by at least one link forming a central articulation. One of the bearing plates of the boot is movable vertically and transmits the vertical stresses from the boot to one of the levers, and an elastic return means (40, 60) exerts, on one of the levers (10, 53), an upward return force of sufficient intensity to hold the central articulation of the two levers suspended in the presence of the boot. The link between the levers can preferably be disengaged. <IMAGE>

Description

L'invention concerne un dispositif interface visant à modifier la répartition naturelle d'un ski sur sa surface de glisse.The invention relates to an interface device intended to modify the natural distribution of a ski over its sliding surface.

Les skis qui sont utilisés pour la pratique du ski alpin sont constitués par des planches relativement longues, sur lesquelles les chaussures du skieur sont retenues par des éléments de fixation avant et arrière. Les chaussures et les éléments de fixation se trouvent approximativement dans la zone médiane du ski. Les skis présentent en eux-mêmes, au repos, une cambrure naturelle, par lequel la zone médiane est surélevée naturellement par rapport à l'extrémité avant du ski, ou spatule, et l'extrémité arrière du ski, ou talon. En outre, les skis présentent une flexibilité, qui tient à leur structure interne. Lors de la pratique du ski, le ski se déforme de manière élastique en réponse aux différentes sollicitations auxquelles il est soumis de la part du skieur, mais aussi de la part du terrain sur lequel il glisse.The skis which are used for the practice of alpine skiing consist of boards relatively long, on which the skier's shoes are retained by front fasteners and back. Shoes and fasteners are approximately in the area ski median. The skis present in themselves, at rest, a natural camber, by which the middle zone is naturally raised from the front end of the ski, or tip, and the rear end of the ski, or heel. In addition, the skis have flexibility, which is due to their internal structure. When skiing, the ski deforms elastically in response to different stresses to which it is subjected on the part of the skier, but also on the part of the terrain on which it slides.

Il existe des dispositifs interfaces qui sont interposés entre les éléments de fixation et le ski. De tels interfaces sont par exemple connus d'après les demandes de brevet publiées sous les numéros WO 83/03360, EP 492 658, EP 409 749. Ces dispositifs modifient la flexibilité de la poutre du ski, en la raidissant, ou bien avec un effet d'amortissement. Cependant, ces dispositifs agissent de façon passive, c'est-à-dire qu'ils ne font que réagir à une flexion déterminée du ski.There are interface devices which are interposed between the binding elements and the ski. Such interfaces are for example known from patent applications published under numbers WO 83/03360, EP 492 658, EP 409 749. These devices modify the flexibility of the ski beam, by stiffening, or with a damping effect. However, these devices act in a way passive, that is to say that they only react to a determined flexion of the ski.

Un autre dispositif de ce type est connu d'après la demande de brevet français publiée sous le numéro FR 2 689 775. Ce dispositif comprend une poutre longitudinale surélevée par rapport au ski. L'extrémité arrière de la poutre est solidaire du ski, et son extrémité avant est reliée par un bloc de matériau amortissant qui est sollicité au cisaillement. Ce dispositif amortit les déformations en flexion du ski. 11 amortit aussi la chaussure de façon verticale. Mais cet amortissement est relativement raide à cause de la structure rigide de la poutre.Another device of this type is known from the French patent application published under the number FR 2 689 775. This device comprises a longitudinal beam raised relative to the ski. The rear end of the beam is integral with the ski, and its front end is connected by a block of damping material which is subjected to shear. This device absorbs bending deformations ski. It also absorbs the shoe vertically. But this amortization is relatively steep because of the rigid structure of the beam.

On connaít également d'après la demande de brevet européen publiée sous le numéro EP 530 449 au nom de la demanderesse un dispositif interface qui modifie de façon dynamique la répartition de pression du ski sur la neige, en fonction des sollicitations verticales que le skieur exerce sur ses skis. Ce dispositif comprend an palpeur mobile verticalement qui transmet à l'embase de l'élément de fixation avant les sollicitations verticales qu'il capte en provenance de la chaussure. Dans l'un des modes de réalisation, ces sollicitations sont transmises par l'intermédiaire d'un basculeur et d'une plaque de liaison sensiblement horizontale articulée d'un côté au basculeur et de l'autre à l'embase de la fixation.We also know from the European patent application published under the number EP 530 449 on behalf of the applicant an interface device which dynamically modifies the distribution of pressure of the ski on the snow, as a function of the vertical stresses that the skier exerts on his skis. This device comprises a vertically movable feeler which transmits to the base of the element of binding before the vertical stresses it receives from the shoe. In one of embodiments, these stresses are transmitted via a rocker and a substantially horizontal connection plate articulated on one side to the rocker and on the other to the base of fixation.

Selon un perfectionnement décrit dans le EP 567 780, la plaque de liaison est reliée à l'embase de la fixation par un élément de retenue tel qu'un ressort ou un matériau travaillant au cisaillement.According to an improvement described in EP 567 780, the connection plate is connected to the base of the fixing by a retaining element such as a spring or a material working in shearing.

Selon un autre perfectionnement apporté par la demanderesse, la plaque de liaison est construite comme une genouillère qui est refermée par la chaussure et qui s'ouvre d'elle-même dès que la chaussure est libérée.According to another improvement made by the applicant, the connection plate is constructed like a kneepad which is closed by the shoe and which opens by itself as soon as the shoe is released.

Un autre perfectionnement de ce dispositif a consisté à interposer entre le basculeur et l'embase de l'élément de fixation un ou plusieurs ressorts précontraints qui absorbent les sollicitations excessives que le palpeur transmet à l'embase. En se cassant, la genouillère élimine la réaction que cette précontrainte induit dans le ski dès que la chaussure est libérée de ses éléments de fixation qui la retiennent.Another improvement of this device consisted in interposing between the rocker and the base of the fastening element one or more pre-stressed springs which absorb excessive stresses that the probe transmits to the base. By breaking, the knee brace eliminates the reaction that this preload induced in the ski as soon as the boot is released from its fastening elements which hold back.

On a recherché à simplifier la structure de ce dispositif interface qui est relativement complexe notamment à cause de la présence du basculeur et de son environnement, en obtenant des qualités d'amortissement vertical meilleures que celles du dispositif selon la demande de brevet FR 2 689 775.We tried to simplify the structure of this interface device which is relatively complex in particular because of the presence of the rocker and its environment, obtaining qualities vertical damping better than that of the device according to patent application FR 2 689 775.

Ainsi, la présente invention propose un dispositif interface qui influence la répartition de pression du ski sur la neige, et dont la structure est simplifiée par rapport aux dispositifs existants.Thus, the present invention provides an interface device which influences the pressure distribution of the skiing on snow, and whose structure is simplified compared to existing devices.

Un autre but de l'invention est de proposer un dispositif interface qui présente des caractéristiques d'amortissement vertical et longitudinal élevées dans la transmission des sollicitations entre le ski et la chaussure.Another object of the invention is to propose an interface device which has characteristics high vertical and longitudinal damping in the transmission of stresses between the ski and the shoe.

Ces buts, et d'autres buts et avantages sont atteints par l'invention telle qu'elle est définie par la revendication 1 et les revendications dépendantes qui lui sont rattachées.These and other objects and advantages are achieved by the invention as defined by the claim 1 and the dependent claims attached thereto.

Selon une première caractéristique de l'invention, l'interface est construit comme une jambe de liaison s'étendant entre deux butées reliées au ski. La jambe de liaison présente au moins deux leviers articulés entre eux, et la liaison centrale entre les leviers est maintenue suspendue au dessus du ski.According to a first characteristic of the invention, the interface is constructed like a leg of link extending between two stops connected to the ski. The connecting leg has at least two levers hinged together, and the central link between the levers is kept suspended above the ski.

Selon l'invention, la liaison centrale est prévue pour transmettre les efforts d'un levier à l'autre selon une direction longitudinale, et qu'elle est prévue pour permettre un mouvement angulaire relatif d'angle limité entre les deux leviers, que le moyen de rappel élastique exerce sur l'un des leviers une force de rappel suffisante pour maintenir suspendue l'articulation centrale.According to the invention, the central link is designed to transmit the forces from one lever to the other in a longitudinal direction, and that it is provided to allow relative angular movement angle limited between the two levers, that the elastic return means exerts on one of the levers a sufficient restoring force to keep the central joint suspended.

Ce mode de construction permet d'obtenir des caractéristiques dynamiques de raidissement longitudinal du ski et d'amortissement vertical de la chaussure, sans avoir recours à une transmission des efforts au moyen d'un basculeur. Les efforts transmis peuvent cependant présenter une intensité élevée, étant donné que la jambe de liaison se présente comme une sorte de genouillère articulée dans sa partie centrale.This construction method makes it possible to obtain dynamic stiffening characteristics longitudinal of the ski and vertical damping of the boot, without using a transmission efforts by means of a rocker. The transmitted forces can however have an intensity high, since the connecting leg looks like a kind of knee joint articulated in its central part.

Selon une autre caractéristique de l'invention, un élément compressible intercalé entre le ski et l'un des leviers de la jambe de liaison exerce sur le levier en question un effort vertical vers le haut, de façon à maintenir suspendue l'articulation centrale. De plus, cet élément compressible transmet localement au ski une partie des efforts verticaux en provenance de la chaussure. Cet élément compressible peut aussi présenter des caractéristiques amortissantes ou viscoélastiques, et de ce fait contribuer à l'amortissement vertical de la chaussure. Cet amortissement se trouve amélioré du fait que la jambe de liaison est construite en deux leviers articulés.According to another characteristic of the invention, a compressible element interposed between the ski and one levers of the connecting leg exerts on the lever in question a vertical upward force, of so as to keep the central joint suspended. In addition, this compressible element transmits locally skiing part of the vertical forces coming from the boot. This element compressible may also have damping or viscoelastic characteristics, and therefore contribute to the vertical cushioning of the shoe. This amortization is improved due to that the connecting leg is constructed in two articulated levers.

Selon une autre caractéristique de l'invention, la liaison centrale entre les leviers est débrayable, ce qui permet de rendre l'interface inactif de façon momentanée. Avantageusement, c'est la pédale d'actionnement du frein de ski qui commande également ce débrayage, si bien que l'interface n'est réellement actif qu'en présence de la chaussure.According to another characteristic of the invention, the central link between the levers is disengageable, which makes the interface temporarily inactive. Advantageously, it is the pedal actuation of the ski brake which also controls this declutching, so that the interface is not really active only in the presence of the shoe.

Selon une autre caractéristique de l'invention, la longueur de la jambe de liaison est légèrement supérieure à la distance entre les deux butées, si bien que l'interface exerce au repos une précontrainte sur le ski.According to another characteristic of the invention, the length of the connecting leg is slightly greater than the distance between the two stops, so that the interface exerts a prestress at rest on the ski.

Selon une autre caractéristique de l'invention, l'une des butées d'appui de la jambe de liaison est mobile selon une direction longitudinale, et elle est rappelée de façon élastique vers l'autre butée. Ceci permet avantageusement de limiter l'action de l'interface sur le ski, lors de sollicitations extrêmement fortes de la chaussure en direction du ski. Egalement, ceci permet de limiter la remontée vers la chaussure des déformations de la partie avant du ski qui sont dues au fléchissement du ski, par exemple sur une bosse.According to another characteristic of the invention, one of the abutments for supporting the connecting leg is movable in a longitudinal direction, and it is resiliently returned towards the other stop. This advantageously makes it possible to limit the action of the interface on the ski, during extremely stresses of the shoe towards the ski. Also, this limits the ascent to the boot deformations of the front part of the ski which are due to the flexing of the ski, by example on a bump.

Selon une autre caractéristique, le levier arrière est la glissière de l'élément de fixation arrière. Ceci permet de rendre l'extrémité arrière de la chaussure mobile verticalement pour activer l'interface, sans pour autant solliciter le mécanisme d'ouverture de la mâchoire. According to another characteristic, the rear lever is the slide of the rear fixing element. This makes the rear end of the shoe movable vertically to activate the interface, without requesting the jaw opening mechanism.

Selon une autre caractéristique de l'invention, on ajuste la position au repos de l'articulation centrale de la jambe de liaison par rapport à ses deux extrémités, pour qu'une sollicitation verticale de la chaussure sur l'interface ait un effet plus ou moins prononcé sur la répartition de pression du ski sur la neige.According to another characteristic of the invention, the position at rest of the joint is adjusted center of the connecting leg with respect to its two ends, so that a vertical stress of the boot on the interface has a more or less pronounced effect on the pressure distribution of the ski on the snow.

D'autres buts et avantages de l'invention apparaítront au cours de la description qui va suivre et aux dessins en annexe qui en font partie intégrante, cette description étant donnée à titre indicatif et non limitatif.Other objects and advantages of the invention will appear during the description which follows and the annexed drawings which form an integral part thereof, this description being given for information only and not limiting.

La figure 1 représente en vue de côté un dispositif selon un premier mode non limitatif de mise en oeuvre de l'invention.Figure 1 shows a side view of a device according to a first non-limiting mode of implementation work of the invention.

La figure 2 est une vue de dessus du dispositif de la figure 1. Les éléments de fixation ne sont pas visibles dans cette figure.Figure 2 is a top view of the device of Figure 1. The fasteners are not visible in this figure.

La figure 3 est une vue éclatée en perspective qui illustre la liaison entre l'avant du lever avant et le ski.Figure 3 is an exploded perspective view which illustrates the connection between the front of the front lever and ski.

La figure 4 est une vue de côté en coupe du levier avant, selon une variante de réalisation.Figure 4 is a side view in section of the front lever, according to an alternative embodiment.

La figure 5 est une vue partielle en perspective du dispositif de la figure 1 illustrant plus particulièrement la liaison entre les deux leviers.Figure 5 is a partial perspective view of the device of Figure 1 illustrating more particularly the connection between the two levers.

La figure 6 est une vue de côté du dispositif de la figure 1 en présence de la chaussure et au repos.Figure 6 is a side view of the device of Figure 1 in the presence of the shoe and at rest.

La figure 7 est une vue de côté du dispositif de la figure 1 en présence de la chaussure et sous l'action d'une sollicitation verticale vers le bas.Figure 7 is a side view of the device of Figure 1 in the presence of the shoe and under the action of a vertical downward bias.

La figure 8 représente en vue de côté un dispositif interface selon une variante de mise en oeuvre de l'invention.Figure 8 shows a side view of an interface device according to an alternative embodiment of the invention.

La figure 9 est une vue semblable à la figure 8 du dispositif en présence de la chaussure.Figure 9 is a view similar to Figure 8 of the device in the presence of the shoe.

La figure 1 représente un ski 1, vu de côté dans sa zone centrale. Des éléments de fixation 3 et 4 sont montés sur le ski dans cette zone centrale.FIG. 1 represents a ski 1, seen from the side in its central zone. Fasteners 3 and 4 are mounted on the ski in this central area.

Les éléments de fixation 3 et 4 sont de tout type approprié. L'élément de fixation avant 3 présente de façon connue une mâchoire 5 de retenue de l'extrémité avant de la chaussure. La mâchoire est portée par un corps 6, et le corps est lui-même monté sur une plaque de base 7 par laquelle l'élément de fixation est assemblé au ski.The fastening elements 3 and 4 are of any suitable type. The front fixing element 3 has in known manner a jaw 5 retaining the front end of the shoe. The jaw is carried by a body 6, and the body is itself mounted on a base plate 7 by which the element binding is assembled to the ski.

De façon semblable, l'élément de fixation arrière 4 présente une mâchoire 8 portée par un corps 9. Le corps 9 est monté coulissant le long d'une plaque de base 10 conformée en glissière orientée selon la direction longitudinale du ski, sous l'action d'un ressort appelé ressort de recul qui repousse élastiquement le corps vers l'avant.Similarly, the rear fixing element 4 has a jaw 8 carried by a body 9. The body 9 is slidably mounted along a base plate 10 shaped as a slide oriented along the longitudinal direction of the ski, under the action of a spring called a recoil spring which repels elastically the body forward.

A chaque élément de fixation 3, 4 est également associé une plaque d'appui 12, 13 sur laquelle repose la semelle de chaussure, mais ces plaques d'appui seront décrites plus en détail ultérieurement.Each fixing element 3, 4 is also associated with a support plate 12, 13 on which the shoe sole rests, but these bearing plates will be described in more detail later.

Le dispositif interface qui fait l'objet de la présente invention est situé dans la zone centrale du ski.The interface device which is the subject of the present invention is located in the central area of the ski.

Il présente une butée avant et une butée arrière reliées solidairement au ski.It has a front stop and a rear stop connected integrally to the ski.

Avantageusement, ainsi que le schématise les figures, la butée avant 14 est une embase solidarisée au ski par tout moyen approprié, par exemple des vis, présentant à sa surface supérieure une zone de montage destinée à recevoir la plaque de base 7 de l'élément avant de fixation. Advantageously, as shown in the figures, the front stop 14 is a base secured to the ski by any suitable means, for example screws, having on its upper surface a mounting area intended to receive the base plate 7 of the element before fixing.

De même, la butée arrière 15 est formée par une embase qui est solidarisée au ski par tout moyen approprié par exemple par des vis. L'embase 15 s'étend sous la plaque de base 10 de l'élément de fixation arrière, et elle est équipée de moyens pour recevoir la plaque de base 10 de l'élément de fixation arrière 4. Ces moyens seront décrits plus en détail ultérieurement.Similarly, the rear stop 15 is formed by a base which is secured to the ski by any means suitable for example with screws. The base 15 extends under the base plate 10 of the element of rear attachment, and it is equipped with means for receiving the base plate 10 of the element of rear attachment 4. These means will be described in more detail later.

Une jambe de liaison 18 articulée relie ces deux butées 14 et 15. La jambe de liaison est maintenue en position surélevée par rapport à la surface supérieure du ski.An articulated connecting leg 18 connects these two stops 14 and 15. The connecting leg is held in an elevated position relative to the upper surface of the ski.

Dans l'exemple illustré, la jambe de liaison 18 comprend deux leviers, un lever avant et un lever arrière, chacun relié à une butée avant et arrière. Les deux leviers sont de nature incompressible.In the example illustrated, the connecting leg 18 comprises two levers, a front lever and a lever rear, each connected to a front and rear stop. The two levers are incompressible in nature.

Ainsi, en se reportant aux figures, la jambe de liaison présente un levier avant 20 constitué par une sorte de poutre longiligne qui est reliée dans sa partie avant à la butée avant 14 par une liaison permettant un pivotement d'amplitude limitée. La figure 1 représente le lever avant 20 dans sa position haute. Dans sa position basse schématisée en figure 6, le lever avant 20 est parallèle à la surface supérieure du ski, en étant surélevé par rapport à la surface supérieure du ski.Thus, referring to the figures, the connecting leg has a front lever 20 constituted by a kind of elongated beam which is connected in its front part to the front stop 14 by a connection allowing pivoting of limited amplitude. Figure 1 shows the sunrise before 20 in its high position. In its low position shown diagrammatically in FIG. 6, the front lift 20 is parallel to the upper surface of the ski, being raised relative to the upper surface of the ski.

La liaison entre le lever 20 et l'embase avant est de tout type approprié, notamment par un axe transversal, par coopération de formes complémentaires, ou autre.The connection between the lever 20 and the front base is of any suitable type, in particular by an axis transversal, by cooperation of complementary forms, or other.

La figure 3 illustre un mode préférentiel de réalisation de cette liaison. Selon ce mode de réalisation, la butée avant 14, c'est-à-dire l'embase qui porte la plaque de base de l'élément de fixation, présente dans sa partie arrière un évidement 21 ouvert vers le haut et vers l'arrière. Dans cet évidement, un bloc 22 de matériau élastiquement déformable est logé, de façon à combler au moins la partie avant de l'évidement. Le bloc est en toute matière appropriée, et peut présenter des propriétés amortissantes ou viscoélastiques.Figure 3 illustrates a preferred embodiment of this connection. According to this embodiment, the front stop 14, that is to say the base which carries the base plate of the fixing element, has in its rear part a recess 21 open upwards and backwards. In this recess, a block 22 of elastically deformable material is housed, so as to fill at least the front part of the recess. The block is of any suitable material, and may have properties shock absorbing or viscoelastic.

L'extrémité avant 23 du levier 20 présente une section réduite aux dimensions de l'évidement 21, de façon à pouvoir coulisser librement dans le volume de l'évidement et comprimer le cas échéant le bloc 22. La face avant de l'extrémité 23 est dressée pour comprimer le bloc 22 en se déplaçant vers l'avant relativement à l'embase 14.The front end 23 of the lever 20 has a section reduced to the dimensions of the recess 21, of so that it can slide freely in the volume of the recess and compress the block if necessary 22. The front face of the end 23 is erected to compress the block 22 by moving towards the front relative to the base 14.

La liaison entre le lever 20 et l'embase 14 est couverte par un capot 24 réalisée en une matière élastiquement déformable. Avantageusement, le capot 24 présente latéralement deux pattes 25 et 26, qui descendent le long des faces latérales de l'embase 14 et s'emboítent dans des dégagements de forme correspondante.The connection between the lever 20 and the base 14 is covered by a cover 24 made of a material elastically deformable. Advantageously, the cover 24 has two legs 25 and 26 laterally, which descend along the lateral faces of the base 14 and fit into clearances of corresponding shape.

Vers l'arrière, le capot 24 présente une languette 28 qui recouvre la partie avant 23 du lever 20.Towards the rear, the cover 24 has a tongue 28 which covers the front part 23 of the lever 20.

La languette présente vers son extrémité arrière un plot 29 qui coopère avec une ouverture 30 du lever 20, en forme de boutonnière. Le plot 29 peut coulisser longitudinalement dans la boutonnière 30 sur une amplitude limitée. Ces moyens assurent l'accrochage du lever 20 à l'embase 14. La languette réagit en outre comme une charnière et permet un mouvement de rotation du lever 20.The tongue has towards its rear end a stud 29 which cooperates with an opening 30 of the lift 20, buttonhole shape. The stud 29 can slide longitudinally in the buttonhole 30 over a limited range. These means ensure that the lever 20 is hooked to the base 14. The tongue reacts moreover like a hinge and allows a movement of rotation of the lever 20.

Eventuellement, une goupille transversale 27 assure la liaison mobile entre le levier 20 et l'embase 14.Optionally, a transverse pin 27 ensures the mobile connection between the lever 20 and the base 14.

Ainsi, le lever peut pivoter d'un position haute à une position basse. En outre, dans la position basse du lever, un mouvement relatif entre l'embase 14 et le levier 20 peut se produire selon une direction longitudinale. Ce mouvement comprime le bloc 22 qui, en se déformant, s'oppose à ce mouvement.Thus, the lift can pivot from a high position to a low position. In addition, in the position low of the lift, a relative movement between the base 14 and the lever 20 can occur according to a longitudinal direction. This movement compresses the block 22 which, by deforming, opposes this movement.

De préférence, la plaque d'appui 12 qui supporte l'extrémité avant de la semelle de chaussure est associée au capot 24. Par exemple, comme le représente la figure 5, la plaque d'appui 12 est la partie supérieure d'un élément d'appui transversal 31 qui repose sur l'embase 14, de chaque côté de l'évidement 21, et qui traverse une ouverture 32 du capot 24, de telle façon que la plaque d'appui 12 soit en saillie au dessus du capot 24.Preferably, the support plate 12 which supports the front end of the shoe sole is associated with the cover 24. For example, as shown in FIG. 5, the support plate 12 is the part upper of a transverse support element 31 which rests on the base 14, on each side of the recess 21, and which passes through an opening 32 of the cover 24, so that the support plate 12 either projecting above the cover 24.

La figure 4 illustre une variante de réalisation du lever 20. Selon cette variante, le lever est en deux parties 20a et 20b qui sont assemblées par des moyens permettant d'ajuster la longueur globale du lever. Par exemple, les extrémités des parties 20a et 20b sont prévues pour coulisser l'une relativement à l'autre selon une direction longitudinale, et un boulon d'assemblage 34 traverse l'ensemble au niveau d'un orifice de la partie 20a et d'une lumière longitudinale de la partie 20b.FIG. 4 illustrates an alternative embodiment of the lever 20. According to this variant, the lever is in two parts 20a and 20b which are assembled by means making it possible to adjust the overall length to get up. For example, the ends of parts 20a and 20b are provided for sliding one relative to each other in a longitudinal direction, and a connecting bolt 34 crosses the assembly at the level of an orifice of the part 20a and of a longitudinal lumen of the part 20b.

Le dispositif selon l'invention comprend par ailleurs un lever arrière qui est articulé à la butée arrière. Dans le mode de réalisation illustré, le levier arrière est la plaque de base 10 qui forme la glissière de l'élément de fixation arrière 4. La plaque de base est reliée à l'embase 15 dans sa partie arrière par des moyens de liaison qui assurent une retenue selon une direction longitudinale, qui permettent en outre une oscillation de haut en bas tout en entravant un mouvement de roulis de la plaque de base relativement à l'embase. Dans la figure 1, ces moyens sont représentés sous la forme de deux pattes 35 qui forment un prolongement vers l'arrière de la plaque de base 10, et qui sont engagés dans des logements de dimensions correspondante que présente le rebord arrière 36 de l'embase.The device according to the invention also comprises a rear lever which is articulated at the stop back. In the illustrated embodiment, the rear lever is the base plate 10 which forms the slide of the rear fixing element 4. The base plate is connected to the base 15 in its part rear by connecting means which provide retention in a longitudinal direction, which further allow up and down oscillation while hampering a rolling motion of the base plate relative to the base. In FIG. 1, these means are represented in the form two legs 35 which form a rearward extension of the base plate 10, and which are engaged in housings of corresponding size that has the rear edge 36 of the base.

Naturellement, tout autre moyen approprié convient, par exemple un axe d'articulation transversal qui relie la plaque de base et l'embase. Le fait d'entraver les mouvements relatifs de roulis entre la plaque de base et l'embase est avantageux pour assurer une bonne transmission des efforts et sollicitations latérales qui transitent entre le ski et la chaussure.Naturally, any other suitable means is suitable, for example a transverse articulation axis which connects the base plate and the base. Impeding the relative roll movements between the base plate and the base is advantageous for ensuring good transmission of forces and lateral stresses which pass between the ski and the boot.

La plaque de base 10 est par ailleurs maintenue relevée par rapport à la surface supérieure du ski, ou plus précisément par rapport à l'embase 15, par un moyen de rappel élastique qui développe sur cet élément un moment de rappel vers le haut d'intensité suffisante pour maintenir la plaque de base 10 à l'état suspendu en présence de la chaussure, et de préférence même dans le cas de sollicitations vers le bas exercée par la chaussure sur ses appuis.The base plate 10 is moreover kept raised relative to the upper surface of the ski, or more precisely with respect to the base 15, by an elastic return means which develops on this element a moment of upward recall of sufficient intensity to maintain the base plate 10 at the suspended state in the presence of the shoe, and preferably even in the case of stresses towards the bottom exerted by the shoe on its supports.

Ce moyen de rappel élastique relie la plaque de base et le ski, par exemple par l'intermédiaire de l'embase 15. Il assure l'amortissement des sollicitations qui transitent entre la chaussure. En outre, il localise la zone du ski qui est sollicitée pour la réaction à une sollicitation du moyen de rappel élastique. Il influe donc sur la répartition de pression du ski sur la neige.This elastic return means connects the base plate and the ski, for example by means of the base 15. It absorbs the stresses which pass between the shoe. Furthermore, it locates the area of the ski which is stressed for the reaction to a stress from the elastic return means. It therefore influences the pressure distribution of the ski on the snow.

Dans le mode de réalisation illustré, le moyen de rappel élastique est un bloc 40 de matériau élastiquement compressible, qui présente des propriétés amortissantes, et de préférence viscoélastiques. Le bloc 40 est situé vers l'avant de la plaque de base 10, entre l'embase et la plaque de base. Il concentre dans cette zone les efforts verticaux que la chaussure transmet au ski. In the illustrated embodiment, the elastic return means is a block 40 of material elastically compressible, which has damping properties, and preferably viscoelastic. The block 40 is located towards the front of the base plate 10, between the base and the plate basic. It concentrates in this area the vertical forces that the boot transmits to the ski.

Naturellement, tout autre moyen de rappel élastique peut convenir, par exemple un ressort de compression, ou un ressort de torsion.Naturally, any other elastic return means may be suitable, for example a spring compression, or a torsion spring.

De préférence, la plaque de base est retenue vers le haut par une butée. Dans les figures, cette butée est formée par des pattes latérales 41 de l'embase 15 qui remontent de chaque côté de la plaque de base 10, et qui présentent un repli vers l'intérieur.Preferably, the base plate is retained upward by a stop. In the figures, this stop is formed by lateral tabs 41 of the base 15 which rise on each side of the base plate 10, and which have an inward fold.

Les deux leviers 20 et 10 qui forment la jambe de force sont par ailleurs reliés à leur extrémité adjacente par une liaison. Cette liaison assure une transmission longitudinale des efforts d'un levier à l'autre, lorsque les leviers sont approximativement alignés. En outre, la liaison permet un mouvement angulaire relatif d'amplitude réduite entre les deux leviers.The two levers 20 and 10 which form the strut are also connected at their ends. adjacent by a link. This link ensures a longitudinal transmission of the forces from a lever to the other, when the levers are approximately aligned. In addition, the link allows movement relative angle of reduced amplitude between the two levers.

De préférence, lorsque les deux leviers sont sensiblement dans l'alignement l'un de l'autre, la longueur de la jambe de liaison ainsi formée est légèrement supérieure à l'espace prévu entre les deux butées. Ceci induit dans la jambe de liaison une pré-contrainte, dont une partie est absorbée par la compression du bloc 22. De préférence également, la liaison entre les deux leviers est débrayable, et l'emboítement ou le débrayage de la liaison est automatique avec l'engagement ou le dégagement de la chaussure, pour que cette pré-contrainte s'annule en l'absence de la chaussure.Preferably, when the two levers are substantially in alignment with each other, the length of the connecting leg thus formed is slightly greater than the space provided between the two stops. This induces a pre-stress in the connecting leg, part of which is absorbed by the compression of the block 22. Preferably also, the connection between the two levers is disengageable, and the interlocking or disengaging of the link is automatic with the engagement or disengagement of the shoe, so that this pre-stress is canceled in the absence of the shoe.

Dans le mode de réalisation illustré en figure 1, le lever avant 20, qui est articulé sur l'avant par une charnière élastique, présente une extrémité arrière qui peut s'emboíter sur l'extrémité avant du lever 10 et se déboíter.In the embodiment illustrated in FIG. 1, the front lever 20, which is articulated on the front by an elastic hinge, has a rear end which can fit on the front end of the lift 10 and dislodge.

L'extrémité arrière du levier 20 est sollicitée vers le haut par un moyen de rappel élastique, dans le cas présent un bras de relevage escamotable 43.The rear end of the lever 20 is urged upwards by an elastic return means, in the in this case a retractable lifting arm 43.

Le levier avant 20 porte en outre vers son extrémité arrière la plaque d'appui 13 sur laquelle repose l'extrémité arrière de la semelle de chaussure.The front lever 20 further carries towards its rear end the support plate 13 on which the rear end of the shoe sole.

Les moyens d'emboítement sont plus particulièrement visibles en figure 5. Ils comprennent pour l'extrémité arrière du levier 20 deux faces d'appui sensiblement perpendiculaires 44 et 45. Du côté du lever 10, les moyens d'emboítement comprennent des faces d'appui complémentaires 46 et 47. De préférence, ces faces d'appui constituent l'extrémité avant d'une pièce de liaison 48 dont l'extrémité arrière est engagée dans le profilé de la glissière qui forme le levier 10.The nesting means are more particularly visible in Figure 5. They include for the rear end of the lever 20 two substantially perpendicular bearing faces 44 and 45. On the side of the lift 10, the fitting means comprise complementary bearing faces 46 and 47. these bearing faces preferably constitute the front end of a connecting piece 48, the end of which rear is engaged in the profile of the slide which forms the lever 10.

Les faces 44 et 46 sont destinées à transmettre les efforts longitudinaux entre les deux leviers. Lorsque les leviers sont emboítés, les faces 44 et 46 sont sensiblement verticales. De préférence, l'une des faces est légèrement bombée ou biseautée de façon à produire un rattrapage de jeu et une contrainte de compression lors de l'emboítement.The faces 44 and 46 are intended to transmit the longitudinal forces between the two levers. When the levers are fitted, the faces 44 and 46 are substantially vertical. Preferably, one of the faces is slightly curved or beveled so as to produce a take-up of play and a compression stress during nesting.

Les faces 45 et 47 se recouvrent mutuellement et assurent la transmission verticale des sollicitations qui sont perçues par la plaque d'appui 13. Dans la figure 5, ces faces sont en deux parties, respectivement 45a, 45b, et 47a, 47b, situées de part et d'autre des surfaces 44 et 46.The faces 45 and 47 overlap each other and ensure the vertical transmission of stresses which are perceived by the support plate 13. In FIG. 5, these faces are in two parts, respectively 45a, 45b, and 47a, 47b, located on either side of the surfaces 44 and 46.

Le bras de relevage 43 est porté par la partie avant de l'embase 15. Il est articulé à cette embase autour d'un axe transversal, et sa partie supérieure circule dans un logement 42 qui est situé à la face inférieure du levier 20. Un ressort 49 assure par ailleurs le relevage élastique du bras 43.The lifting arm 43 is carried by the front part of the base 15. It is articulated to this base around a transverse axis, and its upper part circulates in a housing 42 which is located at the underside of the lever 20. A spring 49 moreover ensures the elastic lifting of the arm 43.

Avantageusement, le bras 43 constitue l'organe d'actionnement d'un frein de ski. Ainsi que cela est visible dans les figures, le bras 43 se prolonge vers l'arrière par deux bêches de freinage 50, qui passent de chaque côté du ski. Le ressort 49 est par ailleurs le ressort de rappel du frein de ski ainsi formé dans sa position active de freinage.Advantageously, the arm 43 constitutes the actuating member of a ski brake. As is visible in the figures, the arm 43 is extended towards the rear by two braking spades 50, which pass on each side of the ski. The spring 49 is also the return spring of the ski brake as well formed in its active braking position.

Le fonctionnement du dispositif est le suivant. En partant de la position de repos qui est représentée dans la figure 1, l'engagement de la chaussure dans les éléments de fixation provoque l'appui de la semelle sur la plaque d'appui 13. Le lever 20 s'abaisse, et en s'abaissant il provoque l'escamotage du bras 43 et la rentrée des bêches de frein 50, contre la force de rappel du ressort 49. Le levier 20 s'abaisse jusqu'à son emboítement avec le lever arrière 10. La jambe de liaison se trouve ainsi formée entre les deux butées ou embases 14 et 15. Cette configuration nominale du dispositif est illustrée dans la figure 6. L'articulation de la jambe de liaison est maintenue suspendue sous l'action du bloc 40 qui ne s'est comprimé que faiblement, seulement sous l'action du poids du skieur.The operation of the device is as follows. Starting from the rest position which is shown in Figure 1, the engagement of the shoe in the fasteners causes the support of the sole on the support plate 13. The lever 20 lowers, and by lowering it causes the retraction of the arm 43 and the retraction of the brake spades 50, against the return force of the spring 49. The lever 20 is lowered until it engages with the rear lever 10. The connecting leg is thus formed between the two stops or bases 14 and 15. This nominal configuration of the device is illustrated in figure 6. The articulation of the connecting leg is kept suspended under the action of the block 40 which only compressed slightly, only under the action of the weight of the skier.

Il faut souligner que de préférence, la jambe de liaison a légèrement comprimé le bloc compressible 22 situé à l'avant.It should be emphasized that preferably the connecting leg has slightly compressed the compressible block 22 located at the front.

Au cours de la pratique du ski, le skieur transmet à la plaque d'appui 13 des sollicitations verticales vers le bas. Ces sollicitations sont diffusées dans les deux leviers et provoquent aussi la compression élastique du bloc 40 avec un effet de suspension élastique. Le bloc 40 transmet au ski les sollicitations verticales de la chaussure. La figure 7 illustre une telle sollicitation de la chaussure sur la jambe de liaison.During skiing, the skier transmits vertical stresses to the support plate 13 down. These stresses are diffused in the two levers and also cause compression elastic of block 40 with an elastic suspension effect. Block 40 transmits stresses to the ski vertical of the shoe. FIG. 7 illustrates such a stress on the shoe on the leg of liaison.

Au cours de la pratique du ski, la jambe de liaison agit aussi comme un raidisseur longitudinal du ski. Le bloc avant 22 joue un rôle d'amortissement de ce raidisseur. En particulier, il amortit les flexions du ski qui sont provoquées par le relief que le ski rencontre. Il évite aussi que de telles flexions du ski remontent intégralement vers la jambe de liaison et vers la chaussure.During skiing, the connecting leg also acts as a longitudinal stiffener of the ski. The front unit 22 plays a damping role for this stiffener. In particular, it absorbs the flexions of the which are caused by the terrain that the ski meets. It also prevents such bending of the ski go up fully towards the connecting leg and towards the shoe.

De plus, selon la longueur relative des leviers par rapport à la distance entre les deux embases, et selon la hauteur relative de la liaison entre les deux leviers par rapport à la liaison des leviers aux embases, la jambe de liaison peut avoir sur les deux embases une action longitudinale plus ou moins prononcée.In addition, according to the relative length of the levers with respect to the distance between the two bases, and according to the relative height of the connection between the two levers compared to the connection of the levers to bases, the connecting leg can have more or less longitudinal action on the two bases pronounced.

Par exemple, si, en position nominale, la liaison centrale est nettement surélevée par rapport aux liaisons des leviers aux embases, l'abaissement de la liaison produit une extension longitudinale de la jambe de liaison. Etant donné que les liaisons entre les leviers et les embases sont surélevées par rapport à la surface supérieure du ski, et donc par rapport à sa fibre neutre, l'extension de la jambe de force induit vers l'avant du ski et vers l'arrière un moment de flexion qui tend à faire plonger les extrémités du ski vers la neige. L'effet de l'extension de la jambe de liaison est en partie absorbé par la compression du bloc avant 22.For example, if, in nominal position, the central link is clearly raised above the connections of the levers to the bases, the lowering of the connection produces a longitudinal extension of the connecting leg. Since the connections between the levers and the bases are raised by compared to the upper surface of the ski, and therefore compared to its neutral fiber, the extension of the leg force induced towards the front of the ski and towards the rear a bending moment which tends to plunge the ends of the ski towards the snow. The effect of the extension of the connecting leg is partly absorbed by compression of the front block 22.

Si, en position nominale, la liaison centrale se trouve sensiblement à la hauteur des liaisons entre les leviers et les embases, l'abaissement de la liaison centrale n'exerce sensiblement aucune action longitudinale sur les embases.If, in nominal position, the central link is approximately at the height of the links between the levers and the bases, lowering the central link exerts substantially no action longitudinal on the bases.

Le bloc avant 22 conserve cependant un rôle d'amortissement en cas de flexion du ski.The front block 22, however, retains a damping role in the event of bending of the ski.

La liaison centrale peut aussi se trouver en position nominale en dessous du niveau des liaisons entre les leviers et les embases. The central link can also be in nominal position below the level of the links between the levers and the bases.

Lorsque la chaussure sort des éléments de fixation de façon accidentelle ou volontaire, le bras 43 déboíte le lever 20 et l'entraíne vers le haut. Parallèlement, les bêches de frein s'abaissent en position active de freinage.When the shoe comes out of the fastening elements accidentally or voluntarily, the arm 43 pulls up the lever 20 and drives it up. At the same time, the brake spades are lowered into position active braking.

Les figures 8 et 9 illustrent une variante de réalisation.Figures 8 and 9 illustrate an alternative embodiment.

Selon cette variante, la jambe de liaison 52 comprend un lever arrière 53, un levier avant 54, et un lever intermédiaire 55 qui assure une articulation centrale complexe de la jambe de liaison.According to this variant, the connecting leg 52 comprises a rear lever 53, a front lever 54, and a intermediate lift 55 which provides a complex central articulation of the connecting leg.

Le lever arrière est du même type que le lever 10 précédent. Le lever avant 54 est aussi du même type que le lever 20 précédent, excepté que son extrémité arrière est plus longue, et se termine par un patin 56 qui vient prendre appui directement sur l'extrémité avant du levier 53, selon une direction verticale.The rear lift is of the same type as the previous lift 10. Getting up before 54 is also same type as the previous lever 20, except that its rear end is longer, and ends by a shoe 56 which comes to bear directly on the front end of the lever 53, according to a vertical direction.

Le lever intermédiaire 55 est articulé à sa base au levier arrière 53, autour d'un axe transversal. Il est rappelé élastiquement vers le haut par un ressort 57. Sa partie avant coulisse dans un logement 58 que le levier avant présente à sa face inférieure. Le logement 58 présente dans sa partie avant une face d'appui verticale 59 contre laquelle, en présence de la chaussure, le lever intermédiaire prend appui selon une direction longitudinale ainsi que le représente la figure 9.The intermediate lever 55 is articulated at its base to the rear lever 53, around a transverse axis. he is spring-loaded upwards by a spring 57. Its front part slides in a housing 58 that the front lever has on its underside. The housing 58 has in its front part a vertical bearing face 59 against which, in the presence of the boot, the intermediate lift takes support in a longitudinal direction as shown in FIG. 9.

Avantageusement, le levier 55 se prolonge vers l'arrière par deux bêches de freinage, de façon à former un dispositif de freinage pour le ski.Advantageously, the lever 55 is extended towards the rear by two braking spades, so as to form a braking device for skiing.

Un bloc élastiquement déformable 60 est situé entre le lever arrière 53 et le ski. Ce bloc exerce la même fonction que le bloc 40 précédent. De même, la liaison entre le lever avant et l'élément de fixation avant est du même type que dans le mode de réalisation précédent.An elastically deformable block 60 is located between the rear lever 53 and the ski. This block exercises the same function as the previous block 40. Similarly, the connection between the front lift and the front attachment is of the same type as in the previous embodiment.

Selon une direction verticale, les sollicitations de la chaussure sont captées par la plaque d'appui 13 située à l'arrière du lever 54, et transmises au lever arrière 53. Le bloc 60 assure une suspension élastique de la jambe de liaison.In a vertical direction, the stresses on the shoe are picked up by the support plate 13 located at the rear of lever 54, and transmitted to rear lever 53. Block 60 provides a suspension elastic of the connecting leg.

Selon une direction longitudinale, les sollicitations transitent entre les deux leviers avant et arrière va le lever intermédiaire. Cet élément supplémentaire permet une légère déformation de la jambe de liaison au cours de ses mouvements verticaux de suspension. De plus, l'ensemble de la jambe de liaison, y compris le frein, sont suspendus. Seul le bloc 60 assure sous le talon de la chaussure la transmission des efforts verticaux entre la chaussure et le ski. Il semble que cette construction améliore l'effet de suspension en lui donnant d'avantage de souplesse.In a longitudinal direction, the stresses pass between the two front and rear levers going to get up intermediate. This additional element allows a slight deformation of the leg of bond during its vertical suspension movements. In addition, the entire leg of linkage, including the brake, are suspended. Only block 60 ensures under the heel of the shoe the transmission of vertical forces between the boot and the ski. It seems that this construction improves the suspension effect by giving it more flexibility.

Naturellement, la présente description n'est donnée qu'à titre indicatif, et l'on pourrait adopter d'autres modes de mise en oeuvre de l'invention dans le cadre des revendications.Naturally, this description is given for information only, and we could adopt other embodiments of the invention within the scope of the claims.

Claims (10)

  1. Interface device provided to be assembled to a ski, especially an alpine ski, and to be associated wig two binding elements adapted to retain the front end and rear end of a boot sole, including:
    two stops (14, 15) adapted to be affixedly connected to the ski toward the front and rear, respectively, of the central portion of the ski;
    a linking leg (18, 52) provided to form, when the boot is present, a stiffener between the two stops, each end of which is connected to a stop (14, 15) by a pivotal connection about a transverse axis raised relative to the upper surface of the ski when the stops are affixed to the ski;
       the linking leg having at least two levers (20, 10, 54, 53), a front lever (20, 54) and a rear lever (10, 53), which are provided to be raised relative to the upper surface of the ski, when the stops are affixed to the ski and in the presence of the boot, substantially in the extension of one another, and are joined by at least one intermediate linkage when the boot is present;
       and an elastic return means (40, 60) exerting an upward return force on one of the levers (10, 53),
       characterized in that the intermediate linkage is a support linkage provided to transmit the forces from one lever to the other along a longitudinal direction, when the levers are approximately aligned, and that it is provided to enable a relative angular movement with limited angle between the two levers (20, 10, 54, 53), that the elastic return means (40, 60) a provided to ensure the suspension of the intermediate linkage above the ski when the stops are affixed to the ski, and when the boot is present.
  2. Interface device according to claim 1, characterized in that one (20, 54) of the levers has, in the vicinity of the linkage, between the two levers, a support element to support one end of the boot.
  3. Device wording to claim 1, characterized in that the elastic return means (40, 60) is a compressible element located between one of the levers (10, 53) and the ski, pressing upward against the lever in proximity with the linkage to the other lever, and downward against the upper surface of the ski, and that the compressible element is located in the vicinity of said movable support element (13).
  4. Device according to claim 3, characterized in that the elastic return means (40, 60) is an elastically deformable block of shock absorbing material.
  5. Device according to claim 1, characterized in that the linkage between the two levers (20, 10, 54, 53) is disengageable.
  6. Device according to claim 5, characterized in that an auxiliary return means (43, 47, 55, 57) exerts an upward elastic return moment on one (20, 54) of the levers, called the movable lever.
  7. Device according to claim 6, characterized in that the auxiliary return means is a lifting arm (43, 55) that is actuated by a return spring (57, 47), taking support against the movable lever.
  8. Device according to claim 7, characterized in that the lifting arm (43, 55) is journaled at its base, and that it is extended beyond its pivotal connection by two spades (49, 50) spaced apart by a distance greater than the width of the ski, in such a way as to form the braking spades of the ski.
  9. Device according to claim 6, characterized in that the rear end of the front lever (20) has a vertical stop (44) and a longitudinal stop (45) that are capable of cooperating by nesting with corresponding stops (46, 47) of the rear lever (10) to form the linking leg.
  10. Device according to claim 6, characterized in that the linking leg (52) includes a front lever (54) connected to the ski by a pivotal connection at its front end, a rear lever (53) connected to the ski by a pivotal connection at its rear end, and an intermediate lever (55), that the rear lever (53) and the intermediate lever (55) are joined by a pivotal connection about a transverse axis, that the front lever (54) and the intermediate lever (55) are connected to one another by a support along a longitudinal direction, and that the front lever is fended rearwardly, beyond its support on the intermediate lever, by a runner (56) that is supported along a vertical direction against the end of the rear lever, and which is adapted to support the rear end of the boot.
EP94118093A 1993-12-17 1994-11-17 Intermediate device between a ski and the binding Expired - Lifetime EP0658360B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9315402 1993-12-17
FR9315402A FR2713945B1 (en) 1993-12-17 1993-12-17 Interface device between a ski and binding elements.

Publications (2)

Publication Number Publication Date
EP0658360A1 EP0658360A1 (en) 1995-06-21
EP0658360B1 true EP0658360B1 (en) 1998-06-17

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EP94118093A Expired - Lifetime EP0658360B1 (en) 1993-12-17 1994-11-17 Intermediate device between a ski and the binding

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US (1) US5540458A (en)
EP (1) EP0658360B1 (en)
JP (1) JPH07194762A (en)
AT (1) ATE167406T1 (en)
DE (1) DE69411136T2 (en)
FR (1) FR2713945B1 (en)

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Publication number Priority date Publication date Assignee Title
FR2707511B1 (en) * 1993-07-16 1995-12-08 Salomon Sa Device aimed at modifying the natural distribution of a ski on its sliding surface, and ski equipped with such a device.
FR2718048B1 (en) * 1994-03-30 1996-05-31 Salomon Sa Element and assembly for retaining a shoe on a gliding board.
FR2719781B1 (en) * 1994-05-16 1996-07-12 Salomon Sa Interface device aimed at modifying the natural pressure distribution of a ski such as in particular an alpine ski.
FR2742344B1 (en) * 1995-12-19 1998-01-16 Rossignol Sa GLIDING BOARD EQUIPPED WITH A DEVICE INTENDED TO MODIFY THE STIFFNESS OF THE BOARD UNDER THE EFFECT OF A VERTICAL THRUST GIVEN BY THE USER
FR2742343B1 (en) 1995-12-19 1998-01-16 Rossignol Sa SLIDER BOARD EQUIPPED WITH A DEVICE INTENDED TO MODIFY THE STIFFNESS OF THE BOARD UNDER THE EFFECT OF A VERTICAL PUSH GIVEN BY THE USER
FR2743726B1 (en) 1996-01-19 1998-04-24 Salomon Sa RETAINING ASSEMBLY FOR RETAINING A SHOE ON A SKI
FR2766380B1 (en) * 1997-07-22 1999-10-08 Look Fixations Sa SKI BINDING HEEL
AT3309U1 (en) * 1999-02-05 2000-01-25 Atomic Austria Gmbh PANEL-SHAPED SUPPORT ELEMENT, IN PARTICULAR FOR A SKI BINDING
EP1031360A1 (en) * 1999-02-24 2000-08-30 Roland Bünter Ski interface with pressure intensifier for the guiding
US7341271B2 (en) * 2002-01-15 2008-03-11 Buenter Roland Ski spot apparatus with integrated force transmission system
US7201392B2 (en) * 2004-07-22 2007-04-10 King Christopher M Snow ski binding
DE102014001548A1 (en) * 2014-02-08 2015-08-13 Horst Linzmeier Sports equipment
DE102019108350A1 (en) * 2019-03-29 2020-10-01 Marker Deutschland Gmbh Braking device
CN113058256B (en) * 2021-03-10 2021-12-21 刘杨洋 Snowboard with brake device

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CH671887A5 (en) * 1982-03-25 1989-10-13 Brosi Bettosini
FR2649902B1 (en) * 1989-07-18 1992-07-03 Rossignol Sa ADDITIONAL DEVICE FOR SKIING ALLOWING THE MOUNTING OF A SET OF FIXINGS OF A SHOE ON A SKI
JP3017350B2 (en) * 1990-12-27 2000-03-06 マーカー ドイッチェランド ゲゼルシャフト ミット ベシュレンクテル ハフツング A device that changes the rigidity of the ski
DE9017486U1 (en) * 1990-12-27 1992-01-30 Marker Deutschland GmbH, 8116 Eschenlohe Support plate for a safety ski binding
FR2680697B1 (en) * 1991-08-27 1993-11-05 Salomon Sa DEVICE FOR MODIFYING THE PRESSURE DISTRIBUTION OF A SKI ON THE SLIDING SURFACE.
FR2684885B1 (en) * 1991-12-11 1994-02-04 Salomon Sa DEVICE FOR DISTRIBUTING THE PRESSURE OF A SKI ON A SLIDING SURFACE.
FR2687326B1 (en) * 1992-02-18 1995-09-29 Salomon Sa DEVICE FOR MODIFYING THE NATURAL DISTRIBUTION OF A SKI ON ITS SLIDING SURFACE, AND SKI EQUIPPED WITH SUCH A DEVICE.
FR2687325B1 (en) * 1992-02-18 1995-10-27 Salomon Sa DEVICE FOR MODIFYING THE NATURAL DISTRIBUTION OF A SKI ON ITS SLIDING SURFACE, AND SKI EQUIPPED WITH SUCH A DEVICE.
FR2689775B1 (en) * 1992-04-10 1994-07-08 Salomon Sa INTERFACE DEVICE BETWEEN A SKI AND FIXING ELEMENTS, PARTICULARLY ALPINE FIXING.
DE69301125T2 (en) * 1992-04-17 1996-08-14 Salomon S.A., Metz Ski with support plate

Also Published As

Publication number Publication date
FR2713945B1 (en) 1996-03-29
EP0658360A1 (en) 1995-06-21
ATE167406T1 (en) 1998-07-15
DE69411136D1 (en) 1998-07-23
DE69411136T2 (en) 1998-11-12
JPH07194762A (en) 1995-08-01
FR2713945A1 (en) 1995-06-23
US5540458A (en) 1996-07-30

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