EP0769977A1 - Safety binding for telemark, cross-country and ski-jumping skis - Google Patents

Safety binding for telemark, cross-country and ski-jumping skis

Info

Publication number
EP0769977A1
EP0769977A1 EP96913605A EP96913605A EP0769977A1 EP 0769977 A1 EP0769977 A1 EP 0769977A1 EP 96913605 A EP96913605 A EP 96913605A EP 96913605 A EP96913605 A EP 96913605A EP 0769977 A1 EP0769977 A1 EP 0769977A1
Authority
EP
European Patent Office
Prior art keywords
ski
insert
sole
rear part
shoe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96913605A
Other languages
German (de)
French (fr)
Inventor
Serge Vigny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0769977A1 publication Critical patent/EP0769977A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A63C9/02—Non-self-releasing bindings with swivel sole-plate or swivel parts, i.e. Ellefsen-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2201/00—Use of skates, skis, roller-skates, snowboards and courts
    • A63C2201/04—Ski jumping
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2201/00—Use of skates, skis, roller-skates, snowboards and courts
    • A63C2201/06—Telemark

Definitions

  • the present invention relates to a safety binding for the practice of telemark skiing, Nordic hiking and ski jumping.
  • This invention also relates to an insert in the sole of the shoe which is essential for the operation of the binding-shoe assembly.
  • It relates more specifically to a binding which is intended to ensure the retention on the ski of the front part of the boot.
  • the bindings commonly used in these practices, cited above, consist of a metal stirrup fixed on the ski and intended to receive the front end of the boot.
  • the shoe is held in the stirrup either by:
  • bindings of the kind mentioned an escape of the boot relative to the ski is only possible on a voluntary basis, by opening a lock (heaving).
  • the tip of the boot remains attached to the ski, which can constitute a danger for the skier in certain configurations of falls, in particular in those which have a significant torsional component.
  • the relative movement between the leg and the ski, present in this kind of fall can no longer be compensated by increasingly rigid shoes for practice in steep terrain.
  • Some telemark competitors use safety bindings originally designed for cross-country skiing. This type of binding includes a rigid plate on which is fixed a stirrup binding, described above, and an integrated or fixed assembly to the ski allowing the escape, under a significant torsional force, of the plate.
  • This assembly authorizing safety, consists of a simple piston comprising a spring whose end piece is housed in the front end of the plate and of a stop element, situated at the rear of the latter, which keeps it in place under the prestressing effect produced by said piston.
  • safety triggers are untimely due to a shoe retention and basic safety system which operates by a single preload.
  • This action of the piston, in the axis of the ski also causes a stiffening of the ski at the location of said plate, under the boot.
  • Most recreational and touring skiers consider as serious drawbacks the change in rigidity of the skis which are very flexible as well as the significant weight of all the constituent elements: safety on the ski, binding without safety and plate .
  • the present invention aims to remedy all of the aforementioned drawbacks by providing a safety binding, for telemark skiing, Nordic hiking and ski jumping, which is capable of ensuring in an extremely reliable manner the release of the boot, in particular when an excessive torsional force develops between the boot and the ski, in particular during a fall.
  • Another objective of the invention is to provide that this safety system modifies the flexibility of the ski on which it is fixed as little as possible, while respecting the biomechanics of the skier's foot during skiing.
  • the invention incorporates an element of the safety device currently intended for the practice of alpine skiing.
  • This element called a stopper, which allows lateral or diagonal clearance from the front of the shoe, has been observed and recognized for many years.
  • the front part of the boot is held in place on the ski by an elastic return means which encloses the front part of the sole between the stop and a rear piece, bearing on an insert located in the sole.
  • the specific shape of the front face of the rear part allows the normal functioning of the stop: ensuring the release of the shoe, under a significant torsional force, by a movement of shoe rotation.
  • the elastic return means is independent of the elastic device of the stop, intended to adjust the threshold for triggering the safety. It is therefore possible to adapt the hardness of this reminder as a function of the flexibility of the ski without influencing the proper functioning of the boot release device.
  • the position of the insert secured to the sole, located approximately under the metatarsals of the foot, means that the part of the boot between the front end and the insert is held on the ski during practice. During the genuflection phases, the forces exerted by the rear leg are then transmitted to the ski on a surface which respects the geometry of the joints of the foot.
  • the rear part is movable relative to the ski. It is connected by means of elastic return which is biased by a closure system. When the closure system is open, the rear part can move back and thus release the shoe.
  • the rear part and the elastic return means are grouped into a single known entity which is a heel piece for alpine ski safety binding.
  • the fitting of the shoe into the binding takes place automatically by pressing the foot.
  • only the front part of the insert is integral with the sole. This makes it possible to dissociate the point of flexion of the boot from the rear attachment of the sole on the ski. This variant is particularly interesting for small size shoes.
  • FIG. 1 is a side view of a first embodiment of a binding according to the invention
  • - Figure 2 is a top view, partially exploded, of the elements, in the first embodiment of the invention, integral with the ski;
  • - Figures 3 and 3A are details of Figure 1 illustrating, in the respectively open and closed position, the operation of the closure device;
  • - Figure 4 is a detail view, in perspective, of the rear element attached to the ski;
  • Figure 7 illustrates the variant of the first embodiment, by a bottom view of the shoe, the elements differentiating from the basic solution.
  • Figure 1 there is designated by the reference 12 the boot and by the reference 1 the ski placed on a horizontal plane of which only the upper face has been shown.
  • the vertical axis is perpendicular to the plane of the ski and oriented from the underside of the ski to the upper face.
  • the front orientation is defined on the left of the figures, except Figure 4, in perspective, where this orientation is defined by the lower left part of the drawing.
  • a stop (2; 3), element-front of the alpine ski safety binding, is fixed to the ski, in front of the boot, by appropriate means such as screws 10. The operation of this element, well known to men of art is not described in this document.
  • the front part of the sole 13 is held, by an elastic return means, between the stop (2; 3), which allows a lateral or diagonal release, under a significant torsional force, and a rear part 9 taking support on an insert 14.
  • the sole 13 of the boot comprises, at its front end, a cutout 34, which takes up the current standard for alpine ski boots, or else a piece 30, fixed by appropriate means to the boot or on the sole.
  • This part whose shape corresponds to said standard, is of high abrasion resistance to protect the front part of the shoe and the sole from wear by friction on the stop.
  • the front end of the sole is held in the vertical plane between the lower wall of the roof of the movable part 3 of the stop and the upper wall of an anti-friction plate 7.
  • This plate 7, located at the rear of the stop, can be fixed to the ski, by appropriate means, or integrated into the stop (2; 3).
  • the front end of the sole is also maintained in the horizontal plane between the two lateral fins of the movable part 3 of the stop.
  • the bottom wall of the sole 13 rests on a plate 4, the upper face of which is contained in the plane defined by the upper wall of the plate 7, which is parallel to the surface of the ski.
  • This plate, located at the rear of the plate 7, can be integrated into a slide 11 or else fixed to the ski by appropriate means.
  • the plates (7; 4) can be contiguous or constitute only one piece.
  • the upper faces of the plates (7; 4) are made either of materials with anti-friction characteristics, or of movable elements 8, called mobile and well-known anti-friction plates, which allow translations in the ski plane, or a combination of the two. .
  • the rear faces of the insert 14 are located approximately under the metatarsals of the foot, positioned in the shoe. In order not to hinder walking, the underside of the insert 14 does not protrude from the underside of the sole 13.
  • the length in the longitudinal direction of the ski and the thickness of the insert are defined as they ensure , in association with the sole 13, sufficient rigidity between the stop and the front wall 33 of the insert for the tensioning of the elastic return.
  • a rear part 9, detailed in FIG. 4, is movable in translation along the longitudinal axis of the ski. It is guided in a slide 11 by suitable means such as two lower protuberances 37, the shape of which is determined as a function of the curved side walls 35 of the slide in order to allow only an axial relative movement between the two parts.
  • the slide 11, which may have on these internal faces anti-friction coatings 36, is then fixed on the ski by suitable means such as screws 10 along the longitudinal axis of the ski.
  • the rear part 9 and its slide 11 are located on the ski behind the plate 4 and the rear part is located behind the rear faces of the insert 14.
  • a spring may possibly complete the connection between the slide and the rear piece in order to ensure automatic retraction of the rear piece when the binding opens.
  • This spring has one of its ends fixed by appropriate means, either on the slide 11, on the side of the stop, either on the rear wall of the plate 4 while its other end is in contact with one of the front faces of the rear part 9.
  • the front face 41 of the rear part describes a portion of an axis revolution surface located in the plane defined by the vertical, the longitudinal axis of the ski and the center of the ski.
  • a portion of the trace of this surface in the previously defined plane is an inverted inclination curve. That is to say that the abscissa of this curve increases towards the front as a function of the height; the simplest example is a cone with a vertical axis, the radius of which increases with height.
  • the connection between the inverted face 41 and the raised part 43 of the rear part is produced by a wall 39 of any inclination, the height of which is determined to resist the vertical tearing forces exerted by the insert.
  • connection between the front face 41 and the lower base of the rear part is produced by a wall 40 of any inclination.
  • the raised part 43 of the rear part is housed in a reservation 19 provided for this purpose in the bottom wall of the sole 13.
  • One of the faces of the front wall 33 of the insert has a geometry complementary to the face 41 so that the contact surface between the insert 14 and the rear part 9 is maximum.
  • an elastic return means which consists either of the elasticity of a cable 6, under tension, or of a combination of the cable 6 with a spring 16.
  • One end of the cable 6 which can be single or double, is connected, by appropriate means, to the rear part 9.
  • the cable passes through a housing, reserved for this purpose, in the thickness of the plate 4; then it passes under the anti-friction plate 7 and the stop (2; 3), in a housing provided for this purpose in the thickness of a raised plate 5. It finally reaches the closure system 15 to which is connected, by appropriate means, its other end.
  • the cable 6 may also include a micrometric length adjustment, well known to those skilled in the art, which is not shown in the figures.
  • the raising plate 5 which is located between the lower faces of the stop and of the anti-friction plate and the upper face of the ski 1, is pierced through its thickness by the fixing means retained to hold the stop. Its thickness is defined in such a way that it makes it possible to limit the contact of the lateral part of the sole with snow, when taking edges with a strong inclination of the ski.
  • the closure system 15 consists of a part 27 which comprises two lateral fins 26, perpendicular thereto, through which is maintained, by appropriate means, a main axis 24.
  • This main axis which can be in several parts, also crosses the end of the lever 21 to which it serves as an axis of rotation, located in a horizontal plane and perpendicular to the longitudinal axis of the ski.
  • the cable 6 is hung, by appropriate means, on the lever 22 at a location 25 located not strictly between the axis 23 and the end of the lever 22 on the side of the cable inlet.
  • the cable 6 passes between the fins 26 or outside depending on whether this cable is respectively simple or doubled.
  • the closure system 15 is fixed to the fixed body 2 of the stop by suitable means such as rivets 28 (see FIGS. 3 and 3A).
  • the rivet keeps the part 27 in contact with the stopper.
  • the portion of the cable, located between the raised plate 5 and the closure system 15, then bears on the front face of the fixed body 2 of the stopper. If the fixed body of the stopper is too angular on its front face, a specific part, not shown in the figures, can be fixed to it by appropriate means.
  • the front face of this part, in contact with the cable has a small curvature adapted to the diameter of the cable so that it can slide over it without difficulty.
  • closure system 15 is fix, on the ski, the closure system 15, more specifically the part 27, by suitable means such as screws.
  • the closure system is positioned at the front of the stop after having undergone, with respect to the figures, a vertical symmetry.
  • the mechanical characteristics of the spring 16 are chosen such that they verify that the rigidity of the spring is less than the elastic rigidity of the cable 6.
  • This spring 16 can be placed at one of the ends of the cable 6, by resting on the face directed towards the cable while, on the other side, the tension of the cable is exerted, by means appropriate. If it is positioned on the side of the rear part 9, it can be accommodated in a reservation provided for this purpose, in the body 38 of the rear part.
  • the front face of the spring bears on the rear part, the other face, when the tension exerted by the spring decreases, also bears on the rear face of the housing provided in the body 38 of the rear part.
  • the geometries of the body 38 and of its housing are defined such that the rear part 9 mechanically resists the preload of the spring 16.
  • the upper surface of the body 38 is located under the underside of the sole 13 so as not to prevent the skier from putting the shoe flat. If the spring is positioned on the side of the closure system, it can be housed in this system or in the lever 22 according to a known technique.
  • the spring while remaining in accordance with the invention, can also be placed at any location along the path of the cable, which is then divided into two parts, the adjacent ends of which are connected, by suitable means, to the ends of the spring.
  • the front end of the sole 13 is introduced into the location provided for this purpose in the stop.
  • a slight pressure is then exerted on the longitudinal axis of the ski, towards the front, to block the front end of the sole against the vertical rear walls of the movable part 3 of the stop.
  • the rear of the shoe is lowered in order to bring the bottom wall of the sole into contact with the plate 4.
  • the closing action consists in a voluntary folding of the lever 21 towards the shoe which moves the hooking point 25 of the cable.
  • the cable slides on the front wall of the fixed body of the stop and in the housing of the plates (5; 4); its other end tends to move the rear part forward (on the left in the figures) on its slide.
  • the action of closing consists of a voluntary folding of the lever 21 towards the front of the ski (on the left in the figures) which displaces the hooking point 25 of the cable.
  • the cable slides in the housing of the plates (5; 4) and tends to move the rear part forward on the slide.
  • the role of the spring is to maintain an almost constant tension in the cable, during deformations of the ski.
  • the spring 16 works in two different ways depending on whether it is positioned at the ends of the cable or along it. Placed at the end of the cable, it works in compression. If the distance between the stop and the rear piece increases, during ski movements, it compresses and exerts a slightly greater force on the rear piece 9. Placed along the cable, it works in traction. If the distance between the stop and the rear piece increases, during ski movement, it lengthens and maintains a constant practical tension in the cable.
  • the boot tends to be released from the ski, by requesting the triggering, lateral or diagonal, of the safety of the stop.
  • the front part of the boot tends to rotate in the plane of the ski and thus exerts lateral forces on the stop (2; 3).
  • the stop by biasing its spring 29, deforms laterally, according to known technology. When the lateral forces exceed the threshold fixed by the adjustment of the spring 29, the stop no longer retains the shoe laterally which is then released by a rotation, the axis of which corresponds to the axis of revolution of the face 41.
  • any alpine ski safety binding stops capable of containing a spring of considerable rigidity can be used for the invention.
  • fix the closure system 15 on the stop those which have a fixed body 2 relative to the ski and one or more moving parts 3, which release the boot, are preferable.
  • closure system 15 described can be replaced by any other known cable tensioning system, in particular those used as a shoe hook, while remaining in accordance with the invention.
  • the choice of the geometric shape of the face 41 of the rear part is determined by the stop (2; 3) retained for the production.
  • the movement described by the mobile part 3 of the stop, during the release of the shoe, and the shape of the face 41 must be compatible with the rigidity of the front part of the sole so that the contact between the rear part 9 and the insert 14 is maximum, throughout the movement.
  • a cone with a vertical axis is suitable for the desired geometry.
  • the plates 4 or 7 or one of them can be replaced by a well-known ski brake. Otherwise, it is necessary to provide the binding with a strap, also known, connecting it to the skier in order to prevent, when the boot is released, that the ski does not leave.
  • the shoes, used for fastening can be, as in the present description, modified existing shoes. It is also possible to develop specific shoes and soles which integrate in their design and manufacture the constructive characteristics of the insert and the front end.
  • the choice of an insert with maximum compactness is adequate to optimize weight. This is suitable for shoes made of plastic materials or leather but whose sole is reinforced in the front part. In the case of a flexible shoe, the sole of which is not reinforced, it is preferable to extend the front of the insert to the front end of the sole.
  • the insert provides the rigidity necessary to tension the elastic return.
  • the shoe, the sole and the elements integral with it are similar to the first embodiment, except for the geometry of the rear face 33 of the insert.
  • This rear face of the insert describes a portion of an axis of revolution surface, situated in a plane defined by the vertical, the longitudinal axis of the ski and the center of the ski.
  • the stop (2; 3), the anti-friction plate 7, the plate 4 and the raising plate 5 are similar to the first embodiment, except that these plates no longer have housing in their thickness for the passage of a cable.
  • the back room, the elastic return and the closure system differ since all the functions played by these entities are grouped in the back room. The description of the rear piece will not be very detailed since it is an alpine ski binding heel.
  • This alpine ski safety binding element is positioned on the ski, by appropriate means, behind the insert.
  • the rear part is movable in translation along the longitudinal axis of the ski. It is guided in a slide by appropriate means, the slide is fixed to the ski in accordance with the first embodiment.
  • the elastic return means consists of a spring housed, in a reservation provided for this purpose, in the rear room.
  • This spring the axis of which coincides with the longitudinal axis of the ski, has its face, located towards the front of the ski, bearing on the rear part, while its other face is connected, by appropriate means, to the slide on the rear side of the ski.
  • the front part of the rear part is movable in rotation about a horizontal axis and transverse to the ski with respect to the rest of this part.
  • the front panels of the rotating part of the part - rear have a curvature complementary to that of the rear face of the insert.
  • the other characteristics of the mobile part in rotation are defined such that they ensure, according to known technology, the conventional operation of the heel piece in contact with the rear, lower and upper walls of the insert.
  • the positioning of the shoe in the binding is similar to the first embodiment up to the downward tilting movement of the shoe.
  • the rear lower wall of the insert comes into contact with the rotating part of the rear part.
  • the skier then exerts, on the insert, a vertical pressure and directed downwards.
  • This action simultaneously causes a rotation of the movable part of the rear part and a retreat of the rear part on its slide.
  • the rotation which brings the underside of the sole into contact with the upper faces of the plates on the ski, triggers a complex closure system which maintains vertical pressure on the rear and upper faces of the insert.
  • the recoil movement which compresses the spring of the rear part, allows the rear part to exert horizontal pressure, towards the front, on the rear faces of the insert which maintains the front end of the sole in the stop.
  • the operation of the release of the boot, under the effect of a significant torsional force, is similar to the first embodiment.
  • Position 31 is determined as a function of the flexion zone of the boot desired by the skier.
  • This variant can advantageously be used for shoes of small size, the area corresponding to the metatarsals is too close to the front end of the shoe. It allows the flexion point of the shoe to be placed at the level of the metatarsals while the rear of the insert is located, behind this point, as a function of the minimum technically possible distance between the stop and the rear part.

Abstract

The invention concerns a safety binding for telemark, cross-country and ski-jumping skis. A resilient return means (6; 16) holds the front part of the sole (13) within a safety stop (2; 3) and, in particular, permits lateral or diagonal disengagement of the ski boot under great torsional stress. A rear part (9) bears on an insert (14) located in the sole (13).

Description

FIXATION DE SECURITE POUR LE SKI DE TELEMARK, LA RANDONNEE NORDIQUE ET LE SAUT A SKI SAFETY BINDING FOR TELEMARK SKIING, NORTHERN HIKING AND SKI JUMP
La présente invention concerne une fixation de sécurité pour la pratique du 3ki de télémark, de la randonnée nordique et du saut à ski. Cette invention concerne également un insert dans la semelle de la chaussure qui est indispensable au fonctionnement de l'ensemble fixation-chaussure.The present invention relates to a safety binding for the practice of telemark skiing, Nordic hiking and ski jumping. This invention also relates to an insert in the sole of the shoe which is essential for the operation of the binding-shoe assembly.
Elle concerne plus précisément une fixation qui est destinée à assurer la retenue sur le ski de la partie avant de la chaussure.It relates more specifically to a binding which is intended to ensure the retention on the ski of the front part of the boot.
Les fixations couramment utilisées dans ces pratiques, citées ci dessus, sont constituées d'un étrier métallique fixé sur le ski et destiné à recevoir l'extrémité-avant de la chaussure. La chaussure est maintenue dans l'étrier soit par :The bindings commonly used in these practices, cited above, consist of a metal stirrup fixed on the ski and intended to receive the front end of the boot. The shoe is held in the stirrup either by:
- une chausse articulée, décrite dans le brevet français n° 2.147.218.- an articulated shoe, described in French patent n ° 2,147,218.
- un câble enserrant la semelle, décrit dans le brevet européen n° 0.495.192.Al.- a cable enclosing the sole, described in European patent n ° 0.495.192.Al.
Dans les fixations du genre évoqué, un échappement de la chaussure par rapport au ski n'est possible que de manière volontaire, par ouverture d'un verrou (déchaussage) . En cas de chute, la pointe de la chaussure reste solidaire du ski, ce qui peut constituer un danger pour le skieur dans certaines configurations de chutes, notamment dans celles qui ont une composante de torsion importante. Le mouvement relatif entre la jambe et le ski, présent dans ce genre de chute, ne peut plus être compensé par des chaussures de plus en plus rigides pour une pratique en terrains escarpés. Certains compétiteurs de télémark utilisent des fixations de sécurité initialement conçues pour la pratique du ski de fond. Ce genre de fixations comprend une plaque rigide sur laquelle est fixée une fixation à étrier, décrite précédemment, et un ensemble intégré ou fixé au ski permettant l'échappement, sous un effort de torsion important, de la plaque. Cet ensemble, autorisant une sécurité, est constitué d'un simple piston comprenant un ressort dont l'embout vient se loger dans l'extrémité avant de la plaque et d'un élément de butée, situé à l'arrière de celle-ci, qui la maintient en place sous l'effet de précontrainte produite par le dit piston. Dans les fixations de sécurité du genre évoqué, les déclenchements de la sécurité sont intempestifs du fait d'un système de maintien de la chaussure et de sécurité sommaire qui fonctionne par une précontrainte unique. Cette action du piston, dans l'axe du ski, provoque également une rigidification du ski à l'emplacement de la dite plaque, sous la chaussure. La plupart des skieurs de loisirs et de randonnées considèrent comme des inconvénients sérieux la modification de rigidité des skis qui sont d'une grande souplesse ainsi que le poids important de l'ensemble des éléments constitutifs: sécurité sur le ski, fixation sans sécurité et plaque.In bindings of the kind mentioned, an escape of the boot relative to the ski is only possible on a voluntary basis, by opening a lock (heaving). In the event of a fall, the tip of the boot remains attached to the ski, which can constitute a danger for the skier in certain configurations of falls, in particular in those which have a significant torsional component. The relative movement between the leg and the ski, present in this kind of fall, can no longer be compensated by increasingly rigid shoes for practice in steep terrain. Some telemark competitors use safety bindings originally designed for cross-country skiing. This type of binding includes a rigid plate on which is fixed a stirrup binding, described above, and an integrated or fixed assembly to the ski allowing the escape, under a significant torsional force, of the plate. This assembly, authorizing safety, consists of a simple piston comprising a spring whose end piece is housed in the front end of the plate and of a stop element, situated at the rear of the latter, which keeps it in place under the prestressing effect produced by said piston. In safety bindings of the kind mentioned, safety triggers are untimely due to a shoe retention and basic safety system which operates by a single preload. This action of the piston, in the axis of the ski, also causes a stiffening of the ski at the location of said plate, under the boot. Most recreational and touring skiers consider as serious drawbacks the change in rigidity of the skis which are very flexible as well as the significant weight of all the constituent elements: safety on the ski, binding without safety and plate .
De plus, lors d'une pratique intensive, une majorité de skieurs constate l'apparition de douleurs aux orteils provoquées par une transmission ponctuelle des efforts entre la chaussure et le ski au niveau de l'extrémité avant de la chaussure. C'est pourquoi la présente invention vise à remédier à l'ensemble des inconvénients précités en fournissant une fixation de sécurité, pour le ski de télémark, la randonnée nordique et le saut à ski, qui est susceptible d'assurer de manière extrêmement fiable la libération de la chaussure, notamment lorsqu'il se développe entre la chaussure et le ski un effort de torsion excessif, en particulier lors d'une chute.In addition, during intensive practice, a majority of skiers notice the appearance of pain in the toes caused by a punctual transmission of forces between the boot and the ski at the front end of the boot. This is why the present invention aims to remedy all of the aforementioned drawbacks by providing a safety binding, for telemark skiing, Nordic hiking and ski jumping, which is capable of ensuring in an extremely reliable manner the release of the boot, in particular when an excessive torsional force develops between the boot and the ski, in particular during a fall.
Un autre objectif de l'invention est de prévoir que ce système de sécurité modifie le moins possible la souplesse du ski sur lequel il est fixé, tout en respectant la biomécanique du pied du skieur durant la pratique du ski.Another objective of the invention is to provide that this safety system modifies the flexibility of the ski on which it is fixed as little as possible, while respecting the biomechanics of the skier's foot during skiing.
Ces différents résultats sont atteints grâce au fait que l'invention reprend un élément du dispositif de sécurité actuellement destiné à la pratique du ski alpin. Cet élément, appelé butée, qui permet un dégagement latéral ou diagonal de l'avant de la chaussure est d'une efficacité constatée et reconnue depuis de nombreuses années.These various results are achieved thanks to the fact that the invention incorporates an element of the safety device currently intended for the practice of alpine skiing. This element, called a stopper, which allows lateral or diagonal clearance from the front of the shoe, has been observed and recognized for many years.
La partie avant de la chaussure est maintenue en place sur le ski par un moyen de rappel élastique qui enserre la partie-avant de la semelle entre la butée et une pièce-arrière, prenant appui sur un insert situé dans la semelle. La forme spécifique de la face-avant de la pièce-arrière permet le fonctionnement normal de la butée: assurer le dégagement de la chaussure, sous un effort de torsion important, par un mouvement de rotation de la chaussure.The front part of the boot is held in place on the ski by an elastic return means which encloses the front part of the sole between the stop and a rear piece, bearing on an insert located in the sole. The specific shape of the front face of the rear part allows the normal functioning of the stop: ensuring the release of the shoe, under a significant torsional force, by a movement of shoe rotation.
Le moyen de rappel élastique est indépendant du dispositif élastique de la butée, destiné à régler le seuil de déclenchement de la sécurité. Il est donc possible d'adapter la dureté de ce rappel en fonction de la souplesse du ski sans influer sur le bon fonctionnement du dispositif de libération de la chaussure.The elastic return means is independent of the elastic device of the stop, intended to adjust the threshold for triggering the safety. It is therefore possible to adapt the hardness of this reminder as a function of the flexibility of the ski without influencing the proper functioning of the boot release device.
La position de l' insert solidaire de la semelle, située approximativement sous les métatarses du pied, fait que la partie de la chaussure comprise entre 1 'extrémité-avant et 1 ' insert est maintenue sur le ski lors de la pratique. Durant les phases de génuflexion, les efforts exercés par la jambe arrière sont alors transmis au ski sur une surface qui respecte la géométrie des articulations du pied.The position of the insert secured to the sole, located approximately under the metatarsals of the foot, means that the part of the boot between the front end and the insert is held on the ski during practice. During the genuflection phases, the forces exerted by the rear leg are then transmitted to the ski on a surface which respects the geometry of the joints of the foot.
Dans un premier mode de réalisation de l'invention, la pièce-arrière est mobile par rapport au ski. Elle est reliée au moyen de rappel élastique qui est sollicité par un système de fermeture. Lorsque le système de fermeture est ouvert, la pièce-arrière peut reculer et ainsi libérer la chaussure.In a first embodiment of the invention, the rear part is movable relative to the ski. It is connected by means of elastic return which is biased by a closure system. When the closure system is open, the rear part can move back and thus release the shoe.
Dans un second mode de réalisation de l'invention, la pièce- arrière et le moyen de rappel élastique sont regroupés dans une seule entité connue qui est une talonnière de fixation de sécurité de ski alpin. Avantageusement, la mise en place de la chaussure dans la fixation s'effectue de façon automatique par une pression du pied.In a second embodiment of the invention, the rear part and the elastic return means are grouped into a single known entity which is a heel piece for alpine ski safety binding. Advantageously, the fitting of the shoe into the binding takes place automatically by pressing the foot.
Dans une variante des modes de réalisation de l'invention, seule la partie-avant de l'insert est solidaire de la semelle. Cela permet de dissocier le point de flexion de la chaussure de l'attache- arrière de la semelle sur le ski. Cette variante est particulièrement intéressante pour les chaussures de petite pointure.In a variant of the embodiments of the invention, only the front part of the insert is integral with the sole. This makes it possible to dissociate the point of flexion of the boot from the rear attachment of the sole on the ski. This variant is particularly interesting for small size shoes.
D'autres caractéristiques et avantages de l'invention apparaîtront de la description et des dessins annexés sur lesquels: - la figure 1 est une vue de côté d'un premier mode de réalisation d'une fixation conforme à l'invention;Other characteristics and advantages of the invention will appear from the description and the appended drawings in which: - Figure 1 is a side view of a first embodiment of a binding according to the invention;
- la figure 2 est une vue de dessus, partiellement éclatée, des éléments, dans le premier mode de réalisation de l'invention, solidaires du ski; - les figures 3 et 3A sont des détails de la figure 1 illustrant , en position respectivement ouverte et fermée, le fonctionnement du dispositif de fermeture; - la figure 4 est une vue de détail, en perspective, de l'élément-arrière fixé au ski;- Figure 2 is a top view, partially exploded, of the elements, in the first embodiment of the invention, integral with the ski; - Figures 3 and 3A are details of Figure 1 illustrating, in the respectively open and closed position, the operation of the closure device; - Figure 4 is a detail view, in perspective, of the rear element attached to the ski;
- la figure 5 est une vue de dessous des éléments, dans le premier mode de réalisation de l'invention, solidaires de la chaussure; - la figure 6 est une vue de côté d'une variante du premier mode de réalisation de l'invention;- Figure 5 is a bottom view of the elements, in the first embodiment of the invention, integral with the shoe; - Figure 6 is a side view of a variant of the first embodiment of the invention;
- la figure 7 illustre la variante du premier mode de réalisation, par une vue de dessous de la chaussure, les éléments se différenciant de la solution de base. A la figure 1, on a désigné par la référence 12 la chaussure et par la référence 1 le ski posé sur un plan horizontal dont seule la face supérieure a été représentée. L'axe vertical est perpendiculaire au plan du ski et orienté de la face inférieure du ski vers la face supérieure. Dans les figures, 1 'orientation-avant est définie sur la gauche des figures, exceptée la figure 4, en perspective, où cette orientation est définie par la partie inférieure gauche du dessin.- Figure 7 illustrates the variant of the first embodiment, by a bottom view of the shoe, the elements differentiating from the basic solution. In Figure 1, there is designated by the reference 12 the boot and by the reference 1 the ski placed on a horizontal plane of which only the upper face has been shown. The vertical axis is perpendicular to the plane of the ski and oriented from the underside of the ski to the upper face. In the figures, the front orientation is defined on the left of the figures, except Figure 4, in perspective, where this orientation is defined by the lower left part of the drawing.
Une butée (2;3), élément-avant de la fixation de sécurité de ski alpin, est fixé au ski, devant la chaussure, par des moyens appropriés tels que des vis 10. Le fonctionnement de cet élément, bien connu des hommes de l'art, n'est pas décrit dans ce document.A stop (2; 3), element-front of the alpine ski safety binding, is fixed to the ski, in front of the boot, by appropriate means such as screws 10. The operation of this element, well known to men of art is not described in this document.
La partie-avant de la semelle 13 est maintenu, par un moyen de rappel élastique, entre la butée (2;3), qui permet un dégagement latéral ou diagonal, sous un effort de torsion important, et une pièce- arrière 9 prenant appui sur un insert 14. La semelle 13 de la chaussure comporte, à son extrémité- avant, une découpe 34, qui reprend la norme actuelle pour les chaussures de ski alpin, ou bien une pièce 30, fixée par des moyens appropriés sur la chaussure ou sur la semelle. Cette pièce, dont la forme correspond à la dite norme, est de forte résistance à l'abrasion pour protéger la partie avant de la chaussure et la semelle de l'usure par frottement sur la butée. L'extrémité-avant de la semelle est maintenu dans le plan vertical entre la paroi inférieure du toit de la partie mobile 3 de la butée et la paroi supérieure d'une plaque antifriction 7. Cette plaque 7, située à l'arrière de la butée, peut être fixée au ski, par des moyens appropriés, ou intégrée à la butée (2;3). L'extrémité-avant de la semelle est également maintenu dans le plan horizontal entre les deux ailettes latérales de la partie mobile 3 de la butée. La paroi inférieure de la semelle 13 repose sur une plaque 4 dont la face supérieure est contenue dans le plan défini par la paroi supérieure de la plaque 7, qui est parallèle à la surface du ski. Cette plaque, située à l'arrière de la plaque 7, peut être intégrée à une glissière 11 ou bien fixée au ski par des moyens appropriés. Les plaques (7;4) peuvent être jointives ou ne constituer qu'une seule pièce. Les faces supérieures des plaques (7;4) sont constituées, soit de matériaux aux caractéristiques antifriction, soit d'éléments mobiles 8, appelés plaques antifriction mobiles et bien connues, qui autorisent des translations dans le plan du ski, soit une combinaison des deux.The front part of the sole 13 is held, by an elastic return means, between the stop (2; 3), which allows a lateral or diagonal release, under a significant torsional force, and a rear part 9 taking support on an insert 14. The sole 13 of the boot comprises, at its front end, a cutout 34, which takes up the current standard for alpine ski boots, or else a piece 30, fixed by appropriate means to the boot or on the sole. This part, whose shape corresponds to said standard, is of high abrasion resistance to protect the front part of the shoe and the sole from wear by friction on the stop. The front end of the sole is held in the vertical plane between the lower wall of the roof of the movable part 3 of the stop and the upper wall of an anti-friction plate 7. This plate 7, located at the rear of the stop, can be fixed to the ski, by appropriate means, or integrated into the stop (2; 3). The front end of the sole is also maintained in the horizontal plane between the two lateral fins of the movable part 3 of the stop. The bottom wall of the sole 13 rests on a plate 4, the upper face of which is contained in the plane defined by the upper wall of the plate 7, which is parallel to the surface of the ski. This plate, located at the rear of the plate 7, can be integrated into a slide 11 or else fixed to the ski by appropriate means. The plates (7; 4) can be contiguous or constitute only one piece. The upper faces of the plates (7; 4) are made either of materials with anti-friction characteristics, or of movable elements 8, called mobile and well-known anti-friction plates, which allow translations in the ski plane, or a combination of the two. .
Un insert 14, qui est fixé à la semelle 13 par des moyens appropriés, est logé dans une réservation 19 prévue à cet effet dans la semelle de la chaussure. Il est solidaire de la semelle sur la totalité de sa surface supérieure. Les faces-arrière de l'insert 14 sont situées approximativement sous les métatarses du pied, positionné dans la chaussure. Pour ne pas gêner la marche, la face inférieure de l'insert 14 ne dépasse pas de la face inférieure de la semelle 13. La longueur dans le sens longitudinal du ski et l'épaisseur de l'insert sont définies telles qu'elles assurent, en association avec la semelle 13, une rigidité suffisante entre la butée et la paroi antérieure 33 de 1'insert pour la mise en tension du rappel élastique.An insert 14, which is fixed to the sole 13 by appropriate means, is housed in a reservation 19 provided for this purpose in the sole of the shoe. It is integral with the sole over its entire upper surface. The rear faces of the insert 14 are located approximately under the metatarsals of the foot, positioned in the shoe. In order not to hinder walking, the underside of the insert 14 does not protrude from the underside of the sole 13. The length in the longitudinal direction of the ski and the thickness of the insert are defined as they ensure , in association with the sole 13, sufficient rigidity between the stop and the front wall 33 of the insert for the tensioning of the elastic return.
Une pièce-arrière 9, détaillée sur la figure 4, est mobile en translation selon l'axe longitudinal du ski. Elle est guidée dans une glissière 11 par des moyens appropriés tels que deux excroissances inférieures 37 dont la forme est déterminée en fonction des parois latérales recourbées 35 de la glissière afin de n'autoriser qu'un déplacement relatif axial entre les deux pièces. La glissière 11, qui peut comporter sur ces faces internes des revêtements antifriction 36, est alors fixée sur le ski par des moyens appropriés tels que des vis 10 selon l'axe longitudinal du ski. La pièce-arrière 9 et sa glissière 11 sont situées sur le ski en arrière de la plaque 4 et la pièce-arrière est située en arrière des faces-arrière de l'insert 14. Un ressort, non représenté sur les figures, peut éventuellement compléter la liaison entre la glissière et la pièce-arrière afin d'assurer un recul automatique de la pièce-arrière à l'ouverture de la fixation. Ce ressort, dont l'axe coïncide avec l'axe longitudinal du ski, a une de ses extrémités fixée par des moyens appropriés soit sur la glissière 11, du côté de la butée, soit sur la paroi-arrière de la plaque 4 alors que son autre extrémité est en contact avec une des faces-avant de la pièce- arrière 9.A rear part 9, detailed in FIG. 4, is movable in translation along the longitudinal axis of the ski. It is guided in a slide 11 by suitable means such as two lower protuberances 37, the shape of which is determined as a function of the curved side walls 35 of the slide in order to allow only an axial relative movement between the two parts. The slide 11, which may have on these internal faces anti-friction coatings 36, is then fixed on the ski by suitable means such as screws 10 along the longitudinal axis of the ski. The rear part 9 and its slide 11 are located on the ski behind the plate 4 and the rear part is located behind the rear faces of the insert 14. A spring, not shown in the figures, may possibly complete the connection between the slide and the rear piece in order to ensure automatic retraction of the rear piece when the binding opens. This spring, the axis of which coincides with the longitudinal axis of the ski, has one of its ends fixed by appropriate means, either on the slide 11, on the side of the stop, either on the rear wall of the plate 4 while its other end is in contact with one of the front faces of the rear part 9.
La face-avant 41 de la pièce-arrière décrit une portion d'une surface de révolution d'axe situé dans le plan défini par la verticale, l'axe longitudinal du ski et le centre du ski. Une portion de la trace de cette surface dans le plan précédemment défini est une courbe d'inclinaison renversée. C'est-à-dire que l'abscisse de cette courbe augmente vers l'avant en fonction de la hauteur; l'exemple le plus simple est un cône d'axe vertical dont le rayon augmente en fonction de la hauteur. La liaison entre la face renversée 41 et la partie surélevée 43 de la pièce-arrière est réalisée par une paroi 39 d'une inclinaison quelconque dont la hauteur est déterminée pour résister aux efforts d'arrachement verticaux exercés par l' insert. La liaison entre la face-avant 41 et la base inférieure de la pièce-arrière est réalisée par une paroi 40 d'inclinaison quelconque. La partie surélevée 43 de la pièce-arrière vient se loger dans une réservation 19 prévue à cet effet dans la paroi inférieure de la semelle 13. L'une des faces de la paroi antérieure 33 de l' insert présente une géométrie complémentaire de la face 41 afin que la surface de contact entre 1' insert 14 et la pièce-arrière 9 soit maximale.The front face 41 of the rear part describes a portion of an axis revolution surface located in the plane defined by the vertical, the longitudinal axis of the ski and the center of the ski. A portion of the trace of this surface in the previously defined plane is an inverted inclination curve. That is to say that the abscissa of this curve increases towards the front as a function of the height; the simplest example is a cone with a vertical axis, the radius of which increases with height. The connection between the inverted face 41 and the raised part 43 of the rear part is produced by a wall 39 of any inclination, the height of which is determined to resist the vertical tearing forces exerted by the insert. The connection between the front face 41 and the lower base of the rear part is produced by a wall 40 of any inclination. The raised part 43 of the rear part is housed in a reservation 19 provided for this purpose in the bottom wall of the sole 13. One of the faces of the front wall 33 of the insert has a geometry complementary to the face 41 so that the contact surface between the insert 14 and the rear part 9 is maximum.
Le contact entre ces deux pièces est assuré par un moyen de rappel élastique qui est constitué soit de l'élasticité d'un câble 6, mis en tension, soit d'une combinaison du câble 6 avec un ressort 16. Une extrémité du câble 6, qui peut être simple ou double, est reliée, par des moyens appropriés, à la pièce-arrière 9. Puis, le câble passe dans un logement, réservé à cet effet, dans l'épaisseur de la plaque 4; ensuite, il passe sous la plaque antifriction 7 et la butée (2;3), dans un logement prévu à cet effet dans l'épaisseur d'une plaque surélévatrice 5. Il atteint enfin le système de fermeture 15 auquel est reliée, par des moyens appropriés, son autre extrémité. Le câble 6 peut également comporter un réglage micrométrique de longueur, bien connu des hommes de l'art, qui ne figure pas sur les figures.The contact between these two parts is ensured by an elastic return means which consists either of the elasticity of a cable 6, under tension, or of a combination of the cable 6 with a spring 16. One end of the cable 6 , which can be single or double, is connected, by appropriate means, to the rear part 9. Then, the cable passes through a housing, reserved for this purpose, in the thickness of the plate 4; then it passes under the anti-friction plate 7 and the stop (2; 3), in a housing provided for this purpose in the thickness of a raised plate 5. It finally reaches the closure system 15 to which is connected, by appropriate means, its other end. The cable 6 may also include a micrometric length adjustment, well known to those skilled in the art, which is not shown in the figures.
La plaque surélévatrice 5, qui est située entre les faces inférieures de la butée et de la plaque antifriction et la face supérieure du ski 1, est transpercée au travers de son épaisseur par les moyens de fixation retenus pour maintenir la butée. Son épaisseur est définie de telle façon qu'elle permette de limiter le contact de la partie latérale de la semelle avec la neige, lors de prises de carres avec une forte inclinaison du ski.The raising plate 5, which is located between the lower faces of the stop and of the anti-friction plate and the upper face of the ski 1, is pierced through its thickness by the fixing means retained to hold the stop. Its thickness is defined in such a way that it makes it possible to limit the contact of the lateral part of the sole with snow, when taking edges with a strong inclination of the ski.
Le système de fermeture 15 est constitué d'une pièce 27 qui comporte deux ailettes latérales 26, perpendiculaires à celle-ci, au travers desquelles est maintenu, par des moyens appropriés, un axe principal 24. Cet axe principal, qui peut être en plusieurs parties, traverse également l'extrémité du levier 21 auquel il sert d'axe de rotation, situé dans un plan horizontal et perpendiculaire à l'axe longitudinal du ski. Un second axe 23, situé dans la même direction que l'axe principal, lie les leviers 21 et 22 par un degré de liberté de rotation par des moyens appropriés. Le câble 6 est accroché, par des moyens appropriés, sur le levier 22 à un emplacement 25 situé non strictement entre l'axe 23 et l'extrémité du levier 22 du côté de l'arrivée du câble. Le câble 6 passe entre les ailettes 26 ou à l'extérieur suivant que ce câble est respectivement simple ou doublé. Le système de fermeture 15 est fixé au corps fixe 2 de la butée par des moyens appropriés tels que des rivets 28 (voir figures 3 et 3A). Le rivet maintient en contact sur la butée la pièce 27. La portion du câble, située entre la plaque surélévatrice 5 et le système de fermeture 15, prend appui alors sur la face avant du corps fixe 2 de la butée. Si le corps fixe de la butée est trop anguleux sur sa face- avant, une pièce spécifique, non représentée sur les figures, peut y être fixée par des moyens appropriés. La face-avant de cette pièce, en contact avec le câble, possède une faible courbure adaptée au diamètre du câble pour que celui-ci puisse coulisser dessus sans difficulté. Une autre possibilité, non représentée sur les figures, est de fixer, sur le ski, le système de fermeture 15, plus précisément la pièce 27, par des moyens appropriés comme des vis. Dans ce cas, le système de fermeture est positionné à l'avant de la butée après avoir subi, par rapport aux figures, une symétrie selon la verticale.The closure system 15 consists of a part 27 which comprises two lateral fins 26, perpendicular thereto, through which is maintained, by appropriate means, a main axis 24. This main axis, which can be in several parts, also crosses the end of the lever 21 to which it serves as an axis of rotation, located in a horizontal plane and perpendicular to the longitudinal axis of the ski. A second axis 23, located in the same direction as the main axis, links the levers 21 and 22 by a degree of freedom of rotation by appropriate means. The cable 6 is hung, by appropriate means, on the lever 22 at a location 25 located not strictly between the axis 23 and the end of the lever 22 on the side of the cable inlet. The cable 6 passes between the fins 26 or outside depending on whether this cable is respectively simple or doubled. The closure system 15 is fixed to the fixed body 2 of the stop by suitable means such as rivets 28 (see FIGS. 3 and 3A). The rivet keeps the part 27 in contact with the stopper. The portion of the cable, located between the raised plate 5 and the closure system 15, then bears on the front face of the fixed body 2 of the stopper. If the fixed body of the stopper is too angular on its front face, a specific part, not shown in the figures, can be fixed to it by appropriate means. The front face of this part, in contact with the cable, has a small curvature adapted to the diameter of the cable so that it can slide over it without difficulty. Another possibility, not shown in the figures, is to fix, on the ski, the closure system 15, more specifically the part 27, by suitable means such as screws. In this case, the closure system is positioned at the front of the stop after having undergone, with respect to the figures, a vertical symmetry.
Les caractéristiques mécaniques du ressort 16 sont choisie telles qu'elles vérifient que la rigidité du ressort est inférieure à la rigidité élastique du câble 6. Ce ressort 16 peut être placé à l'une des extrémités du câble 6, en prenant appui sur la face dirigée vers le câble alors que, sur l'autre face, est exercée la tension du câble, par des moyens appropriés. S'il est positionné du côté de la pièce-arrière 9, celui-ci peut être logé dans une réservation prévue à cet effet, dans le corps 38 de la pièce-arrière. La face-avant du ressort prend appui sur la pièce- arrière, l'autre face, lorsque la tension exercée par le ressort diminue, prend également appui sur la face arrière du logement prévu dans le corps 38 de la pièce-arrière. Les géométries du corps 38 et de son logement sont définies telles que la pièce-arrière 9 résiste mécaniquement à la précontrainte du ressort 16. De plus, la surface supérieure du corps 38 se situe sous la face inférieure de la semelle 13 afin de ne pas empêcher le skieur de mettre la chaussure à plat. Si le ressort est positionné du côté du système de fermeture, celui-ci peut être logé dans ce système ou dans le levier 22 selon une technique connue. Le ressort, en restant conforme à l'invention, peut être également placé à un endroit quelconque le long du trajet du câble, qui est alors sectionné en deux parties dont les extrémités adjacentes sont reliées, par des moyens appropriés, aux extrémités du ressort.The mechanical characteristics of the spring 16 are chosen such that they verify that the rigidity of the spring is less than the elastic rigidity of the cable 6. This spring 16 can be placed at one of the ends of the cable 6, by resting on the face directed towards the cable while, on the other side, the tension of the cable is exerted, by means appropriate. If it is positioned on the side of the rear part 9, it can be accommodated in a reservation provided for this purpose, in the body 38 of the rear part. The front face of the spring bears on the rear part, the other face, when the tension exerted by the spring decreases, also bears on the rear face of the housing provided in the body 38 of the rear part. The geometries of the body 38 and of its housing are defined such that the rear part 9 mechanically resists the preload of the spring 16. In addition, the upper surface of the body 38 is located under the underside of the sole 13 so as not to prevent the skier from putting the shoe flat. If the spring is positioned on the side of the closure system, it can be housed in this system or in the lever 22 according to a known technique. The spring, while remaining in accordance with the invention, can also be placed at any location along the path of the cable, which is then divided into two parts, the adjacent ends of which are connected, by suitable means, to the ends of the spring.
Afin de mettre en place la chaussure dans la fixation, on introduit l'extrémité-avant de la semelle 13 dans l'emplacement prévu à cet effet dans la butée. On exerce ensuite une légère pression dans l'axe longitudinal du ski, vers l'avant, pour venir bloquer l'extrémité- avant de la semelle contre les parois-arrière verticales de la partie mobile 3 de la butée. Simultanément, on abaisse l'arrière de la chaussure pour mettre en contact la paroi inférieure de la semelle sur la plaque 4. Cette opération n'est possible que si on a préalablement ouvert le système de fermeture 15, ce qui fait reculer, selon un mécanisme dont le fonctionnement est décrit ultérieurement, la pièce- arrière 9.In order to put the shoe in place in the binding, the front end of the sole 13 is introduced into the location provided for this purpose in the stop. A slight pressure is then exerted on the longitudinal axis of the ski, towards the front, to block the front end of the sole against the vertical rear walls of the movable part 3 of the stop. Simultaneously, the rear of the shoe is lowered in order to bring the bottom wall of the sole into contact with the plate 4. This operation is only possible if the closure system 15 has previously been opened, which makes it move back, according to a mechanism whose operation is described later, the rear part 9.
Afin de maintenir en place la partie-avant de la chaussure sur le ski sans que le skieur n'ait constamment à exercer une action spécifique, on ferme la fixation.In order to keep the front part of the boot in place on the ski without the skier constantly having to exert a specific action, the binding is closed.
Lorsque le système de fermeture 15 est fixé sur la butée, l'action de fermeture consiste en un rabattement volontaire du levier 21 vers la chaussure qui déplace le point d'accroché 25 du câble. Le câble coulisse sur la paroi-avant du corps fixe de la butée et dans les logements des plaques (5;4); son autre extrémité tend à déplacer la pièce-arrière vers l'avant (à gauche sur les figures) sur sa glissière. Lorsque le système de fermeture 15 est fixé sur le ski, l'action de fermeture consiste en un rabattement volontaire du levier 21 vers l'avant du ski (à gauche sur les figures) qui déplace le point d'accroché 25 du câble. Le câble coulisse dans les logements des plaques (5;4) et tend à déplacer la pièce-arrière vers l'avant sur la glissière. Ce déplacement, indépendamment du support du système de fermeture, met en contact la pièce-arrière sur l'insert de la semelle alors que le levier 21 n'est pas encore en position fermée. Le skieur exerce alors sur le levier 21 une pression qui engendre un moment selon l'axe principal 24. Ce moment est équilibré par l'apparition d'une tension, dans le câble, distante de l'axe principal. Celle-ci sollicite la rigidité de la partie-avant de la semelle , située entre son extrémité-avant et l'insert, qui bloque le déplacement de la pièce- arrière. Dès que le câble passe sous l'axe principal 24, la tension dans le câble ferme franchement le système de fermeture 15 en mettant en contact sur la face supérieure du support du système soit le levier 21 ou 22 soit les leviers (21;22). A ce moment, le câble exerce sur la pièce-arrière 9 une force dont une composante est horizontale, suivant l'axe longitudinal du ski, orientée vers l'avant.When the closing system 15 is fixed on the stop, the closing action consists in a voluntary folding of the lever 21 towards the shoe which moves the hooking point 25 of the cable. The cable slides on the front wall of the fixed body of the stop and in the housing of the plates (5; 4); its other end tends to move the rear part forward (on the left in the figures) on its slide. When the closure system 15 is fixed on the ski, the action of closing consists of a voluntary folding of the lever 21 towards the front of the ski (on the left in the figures) which displaces the hooking point 25 of the cable. The cable slides in the housing of the plates (5; 4) and tends to move the rear part forward on the slide. This movement, independently of the support of the closure system, brings the rear part into contact with the sole insert while the lever 21 is not yet in the closed position. The skier then exerts on the lever 21 a pressure which generates a moment along the main axis 24. This moment is balanced by the appearance of a tension, in the cable, distant from the main axis. This stresses the rigidity of the front part of the sole, located between its front end and the insert, which blocks the movement of the rear part. As soon as the cable passes under the main axis 24, the tension in the cable frankly closes the closure system 15 by bringing the lever 21 or 22 or the levers (21; 22) into contact on the upper face of the system support . At this time, the cable exerts on the rear part 9 a force of which a component is horizontal, along the longitudinal axis of the ski, oriented towards the front.
Si le câble 6 est complété d'un ressort 16, le rôle du ressort est de maintenir une tension quasiment constante dans le câble, lors de déformations du ski. Le ressort 16 travaille de deux façon différentes suivant qu'il est positionné aux extrémités du câble ou le long de celui-ci. Placé en extrémité de câble, il travaille en compression. Si la distance entre la butée et la pièce-arrière augmente, au cours de mouvements du ski, il se comprime et exerce une force légèrement supérieure sur la pièce-arrière 9. Placé le long du câble, il travaille en traction. Si la distance entre la butée et la pièce-arrière augmente, au cours de mouvement de ski, il s'allonge et maintient dans le câble une tension pratique constante. Au niveau du contact entre l'insert et la pièce-arrière, la composante horizontale de la tension est transformée, par L'inclinaison de la face 41 de la pièce-arrière 9, en réactions horizontales vers l'avant et verticales vers le bas de cette même pièce-arrière 9 sur 1 ' insert 14. Ces réactions, respectivement, maintiennent l'extré ité- avant de la semelle dans la butée et plaquent verticalement, au niveau de l'insert, la semelle contre la face supérieure de la plaque 4. A l'arrière, la tenue latérale est assurée par la géométrie de la face 41, qui interdit une rotation de la chaussure, sur la butée, par rapport à son extrémité-avant.If the cable 6 is completed with a spring 16, the role of the spring is to maintain an almost constant tension in the cable, during deformations of the ski. The spring 16 works in two different ways depending on whether it is positioned at the ends of the cable or along it. Placed at the end of the cable, it works in compression. If the distance between the stop and the rear piece increases, during ski movements, it compresses and exerts a slightly greater force on the rear piece 9. Placed along the cable, it works in traction. If the distance between the stop and the rear piece increases, during ski movement, it lengthens and maintains a constant practical tension in the cable. At the contact between the insert and the rear part, the horizontal component of the tension is transformed, by the inclination of the face 41 of the rear part 9, into horizontal reactions towards the front and vertical downwards. of this same rear part 9 on the insert 14. These reactions, respectively, keep the front end of the sole in the stop and flatten vertically, at the level of the insert, the sole against the upper face of the plate 4. At the rear, the lateral holding is ensured by the geometry of the face 41, which prohibits rotation of the shoe, on the stop, relative to its front end.
S'il advient, notamment lors d'une chute, qu'il se développe entre la chaussure et le ski un effort de torsion relativement élevé, la chaussure tend à se dégager du ski, en sollicitant le déclenchement, latéral ou diagonal, de la sécurité de la butée.If it happens, in particular during a fall, that a relatively high torsional force develops between the boot and the ski, the boot tends to be released from the ski, by requesting the triggering, lateral or diagonal, of the safety of the stop.
En pouvant coulisser autour de la face 41 de la pièce- arrière 9, par son contact au niveau de l' insert, La partie-avant de la chaussure a tendance à effectuer une rotation dans le plan du ski et exerce ainsi des efforts latéraux sur la butée (2;3). La butée, en sollicitant son ressort 29, se déforme latéralement, selon une technologie connue. Lorsque les efforts latéraux dépassent le seuil fixé par le réglage du ressort 29, le butée ne retient plus latéralement la chaussure qui se dégage alors par une rotation, dont l'axe correspond à l'axe de révolution de la face 41. Le choix d'un axe de rotation, dont l'intersection avec le plan du ski est situé entre la pièce- arrière 9 et l'emplacement correspondant au talon, permet de respecter au mieux les axes de rotation naturels de la jambe à savoir : sous les métatarses, en position de génuflexion, et sous le tibia, en position chaussure à plat. Ceci permet de réduire les risques de traumatisme des articulations du skieur, durant le dégagement de la chaussure. Néanmoins, le choix d'un centre de rotation situé entre l' insert 14 et la face-arrière de la butée reste conforme à l'invention.By being able to slide around the face 41 of the rear piece 9, by its contact at the level of the insert, the front part of the boot tends to rotate in the plane of the ski and thus exerts lateral forces on the stop (2; 3). The stop, by biasing its spring 29, deforms laterally, according to known technology. When the lateral forces exceed the threshold fixed by the adjustment of the spring 29, the stop no longer retains the shoe laterally which is then released by a rotation, the axis of which corresponds to the axis of revolution of the face 41. The choice of '' an axis of rotation, the intersection of which with the plane of the ski is located between the rear piece 9 and the location corresponding to the heel, makes it possible to best respect the natural axes of rotation of the leg, namely: under the metatarsals , in genuflection position, and under the shin, in flat shoe position. This reduces the risk of trauma to the skier's joints during the release of the boot. However, the choice of a center of rotation situated between the insert 14 and the rear face of the stop remains in accordance with the invention.
Si l'on désire dégager volontairement la chaussure de la fixation, il faut exercer une traction vers le haut, sur l'extrémité, du côté opposé à l'axe principal 24, du levier 22. Ceci a pour effet (voir figure 3), dès que la force exercée par le câble passe au dessus de l'axe principal 24, d'ouvrir franchement le système de fermeture. Le pivotement du levier 22 autour de l'axe 23 rapproche l'amarrage 25 du câble de la plaque surélévatrice 5 et autorise un recul de 1 'autre extrémité du câble et aussi de la pièce-arrière. Si le rappel élastique est complété du ressort 16, le rapprochement de l'amarrage 25 va diminuer la tension dans le câble, jusqu'à mettre les deux faces du ressort 16 en butée dans le logement où il se situe. La tension s'annule et autorise un recul de l'extrémité du câble et ainsi de la pièce- arrière, puisque le ressort bloqué n'a plus tendance à ramener la pièce- arrière vers l'avant. Un mouvement volontaire de la chaussure, par l'¬If one wishes to release the shoe voluntarily from the binding, it is necessary to exert an upward pull, on the end, on the side opposite to the main axis 24, of the lever 22. This has the effect (see FIG. 3) , as soon as the force exerted by the cable passes above the main axis 24, open the closing system openly. The pivoting of the lever 22 around the axis 23 brings the mooring 25 of the cable closer to the elevating plate 5 and allows a retraction of the other end of the cable and also of the rear part. If the elastic return is completed with the spring 16, the approximation of the mooring 25 will reduce the tension in the cable, until the two faces of the spring 16 abut in the housing where it is located. The tension is canceled and allows a retraction of the end of the cable and thus of the rear part, since the blocked spring no longer tends to bring the rear part forward. A voluntary movement of the shoe, for l'¬
exemple une rotation dans le plan du ski, fait reculer (à droite sur les figures) la pièce-arrière 9 sur sa glissière 11, en permettant ainsi, par un basculement vers l'avant, la libération de la chaussure. Un ressort supplémentaire, non représenté sur les figures, peut éventuellement compléter ce système. Comprimé, lorsque la fixation est fermée, il se libère à l'ouverture du système de fermeture en déplaçant automatiquement la pièce 9 vers l'arrière.example a rotation in the plane of the ski, causes the rear part 9 to move back (on the right in the figures) on its slide 11, thus allowing, by tilting forwards, the release of the boot. An additional spring, not shown in the figures, can possibly complete this system. Compressed, when the binding is closed, it is released when the closure system is opened by automatically moving part 9 backwards.
Il convient de mentionner que toutes butées de fixation de sécurité de ski alpin, susceptibles de contenir un ressort de rigidité importante peuvent être utilisées pour l'invention. Néanmoins, si on a opté de fixer le système de fermeture 15 sur la butée, celles qui possèdent un corps fixe 2 par rapport au ski et une ou des parties mobiles 3, qui libèrent la chaussure, sont préférables.It should be mentioned that any alpine ski safety binding stops capable of containing a spring of considerable rigidity can be used for the invention. However, if one has opted to fix the closure system 15 on the stop, those which have a fixed body 2 relative to the ski and one or more moving parts 3, which release the boot, are preferable.
De façon générale, le système de fermeture 15 décrit peut être substitué par tout autre système connu de mise en tension de câble, notamment ceux utilisés comme crochet de chaussure, en restant conforme à l'invention.In general, the closure system 15 described can be replaced by any other known cable tensioning system, in particular those used as a shoe hook, while remaining in accordance with the invention.
Le choix de la forme géométrique de la face 41 de la pièce- arrière est déterminé par la butée (2;3) retenue pour la réalisation. Le mouvement décrit par la partie mobile 3 de la butée, durant le dégagement de la chaussure, et la forme de la face 41 doivent être compatibles avec la rigidité de la partie-avant de la semelle afin que le contact entre la pièce-arrière 9 et l' insert 14 soit maximum, tout au long du mouvement. Par exemple, dans le cas d'un dégagement latéral, un cône d'axe vertical convient à la géométrie recherchée.The choice of the geometric shape of the face 41 of the rear part is determined by the stop (2; 3) retained for the production. The movement described by the mobile part 3 of the stop, during the release of the shoe, and the shape of the face 41 must be compatible with the rigidity of the front part of the sole so that the contact between the rear part 9 and the insert 14 is maximum, throughout the movement. For example, in the case of lateral clearance, a cone with a vertical axis is suitable for the desired geometry.
Avantageusement, on peut substituer les plaques 4 ou 7 ou bien une de celles-ci par un frein de ski, bien connu. Sinon, il faut munir la fixation d'une sangle, également connue, la reliant au skieur afin d'éviter, lors de la libération de la chaussure, que le ski ne parte.Advantageously, the plates 4 or 7 or one of them can be replaced by a well-known ski brake. Otherwise, it is necessary to provide the binding with a strap, also known, connecting it to the skier in order to prevent, when the boot is released, that the ski does not leave.
Les chaussures, utilisées pour la fixation, peuvent être, comme dans la présente description, des chaussures existantes modifiées. On peut également mettre au point des chaussures et semelles spécifiques qui intègrent dans leur conception et fabrication les caractéristiques constructives de l'insert et de l'extrémité avant.The shoes, used for fastening, can be, as in the present description, modified existing shoes. It is also possible to develop specific shoes and soles which integrate in their design and manufacture the constructive characteristics of the insert and the front end.
Si la chaussure, retenue pour la réalisation, est d'une rigidité suffisante, le choix d'un insert de compacité maximale est adéquat afin d'optimiser le poids. Ceci est adapté aux chaussures réalisées en matières plastiques ou bien en cuir mais dont la semelle est renforcée dans la partie-avant. Dans le cas d'une chaussure souple, dont la semelle n'est pas renforcée, il est préférable d'étendre l'avant de l'insert jusqu'à l'extrémité-avant de la semelle. L' insert apporte la rigidité nécessaire pour la mise en tension du rappel élastique.If the shoe, selected for production, is of sufficient rigidity, the choice of an insert with maximum compactness is adequate to optimize weight. This is suitable for shoes made of plastic materials or leather but whose sole is reinforced in the front part. In the case of a flexible shoe, the sole of which is not reinforced, it is preferable to extend the front of the insert to the front end of the sole. The insert provides the rigidity necessary to tension the elastic return.
Dans le second mode de réalisation, qui n'est pas représenté sur les figures, la chaussure, la semelle et les éléments solidaires de celle-ci sont similaires au premier mode de réalisation, excepté la géométrie de la face-arrière 33 de l'insert. Cette face-arrière de 1'insert décrit une portion d'une surface de révolution d'axe, situé dans un plan défini par la verticale, l'axe longitudinal du ski et le centre du ski. La butée (2;3), la plaque antifriction 7, la plaque 4 et la plaque surélévatrice 5 sont similaires au premier mode de réalisation, excepté le fait que ces plaques n'ont plus de logement dans leur épaisseur pour le passage d'un câble. Par contre, la pièce-arrière, le rappel élastique et le système de fermeture diffèrent puisque toutes les fonctions jouées par ces entités sont regroupées dans la pièce- arrière. La description de la pièce-arrière ne sera pas très détaillée puisqu'il s'agit d'une talonnière de fixation de ski alpin. Cet élément de fixation de sécurité de ski alpin, bien connu des hommes de l'art, est positionné sur le ski, par des moyens appropriés, à l'arrière de l' insert. Cependant, on rappelle quelques caractéristiques constructives de la pièce-arrière. La pièce-arrière est mobile en translation selon l'axe longitudinal du ski. Elle est guidée dans une glissière par des moyens appropriés, la glissière est fixée au ski conformément au premier mode de réalisation. Le moyen de rappel élastique est constitué d'un ressort logé, dans une réservation prévue à cet effet, dans la pièce-arrière. Ce ressort, dont l'axe coïncide avec l'axe longitudinal du ski, a sa face, située vers l'avant du ski, en appui sur la pièce-arrière, alors que son autre face est reliée, par des moyens appropriés, à la glissière du côté de l'arrière du ski. La partie-avant de la pièce-arrière est mobile en rotation selon un axe horizontal et transversal au ski par rapport au reste de cette pièce.In the second embodiment, which is not shown in the figures, the shoe, the sole and the elements integral with it are similar to the first embodiment, except for the geometry of the rear face 33 of the insert. This rear face of the insert describes a portion of an axis of revolution surface, situated in a plane defined by the vertical, the longitudinal axis of the ski and the center of the ski. The stop (2; 3), the anti-friction plate 7, the plate 4 and the raising plate 5 are similar to the first embodiment, except that these plates no longer have housing in their thickness for the passage of a cable. On the other hand, the back room, the elastic return and the closure system differ since all the functions played by these entities are grouped in the back room. The description of the rear piece will not be very detailed since it is an alpine ski binding heel. This alpine ski safety binding element, well known to those skilled in the art, is positioned on the ski, by appropriate means, behind the insert. However, we recall some constructive characteristics of the rear room. The rear part is movable in translation along the longitudinal axis of the ski. It is guided in a slide by appropriate means, the slide is fixed to the ski in accordance with the first embodiment. The elastic return means consists of a spring housed, in a reservation provided for this purpose, in the rear room. This spring, the axis of which coincides with the longitudinal axis of the ski, has its face, located towards the front of the ski, bearing on the rear part, while its other face is connected, by appropriate means, to the slide on the rear side of the ski. The front part of the rear part is movable in rotation about a horizontal axis and transverse to the ski with respect to the rest of this part.
Les faces-avant de la partie mobile en rotation de la pièce- arrière ont une courbure complémentaire de celle de la face-arrière de 1'insert. Les autres caractéristiques de la partie mobile en rotation sont définies telles qu'elles assurent, selon une technologie connue, le fonctionnement classique de la talonnière en contact avec les parois arrières, inférieures et supérieures de l'insert.The front panels of the rotating part of the part - rear have a curvature complementary to that of the rear face of the insert. The other characteristics of the mobile part in rotation are defined such that they ensure, according to known technology, the conventional operation of the heel piece in contact with the rear, lower and upper walls of the insert.
La mise en place de la chaussure dans la fixation est similaire au premier mode de réalisation jusqu'au mouvement de basculement, vers le bas, de la chaussure. Avant que la face inférieure de la semelle ne repose sur la plaque, la paroi-inférieure arrière de 1 'insert entre en contact avec la partie mobile en rotation de la pièce- arrière. Le skieur exerce alors, sur l'insert, une pression verticale et orientée vers le bas. Cette action provoque simultanément une rotation de la partie mobile de la pièce-arrière et un recul de la pièce-arrière sur sa glissière. La rotation, qui met en contact la face inférieure de la semelle avec les faces supérieures des plaques sur le ski, enclenche un système complexe de fermeture qui maintient une pression verticale sur les faces arrière et supérieures de l'insert. Le mouvement de recul, qui comprime le ressort de la pièce-arrière, permet à la pièce-arrière d'exercer une pression horizontale, vers l'avant, sur les faces-arrière de l'insert qui maintient l'extrémité-avant de la semelle dans la butée. Le fonctionnement du dégagement de la chaussure, sous l'effet d'un effort de torsion important, est similaire au premier mode de réalisation.The positioning of the shoe in the binding is similar to the first embodiment up to the downward tilting movement of the shoe. Before the underside of the sole rests on the plate, the rear lower wall of the insert comes into contact with the rotating part of the rear part. The skier then exerts, on the insert, a vertical pressure and directed downwards. This action simultaneously causes a rotation of the movable part of the rear part and a retreat of the rear part on its slide. The rotation, which brings the underside of the sole into contact with the upper faces of the plates on the ski, triggers a complex closure system which maintains vertical pressure on the rear and upper faces of the insert. The recoil movement, which compresses the spring of the rear part, allows the rear part to exert horizontal pressure, towards the front, on the rear faces of the insert which maintains the front end of the sole in the stop. The operation of the release of the boot, under the effect of a significant torsional force, is similar to the first embodiment.
Lorsque l'on désire dégager volontairement la chaussure de la fixation, le skieur exerce un effort, selon une pratique connue, sur la face supérieure de la pièce-arrière. Cet effort provoque l'ouverture du système de fermeture, qui fait pivoter vers le haut la partie mobile en rotation de la pièce-arrière et libère ainsi l'insert. Un mouvement de basculement de la chaussure vers l'avant la libère de la fixation. II convient de rappeler que les remarques relatives à l'application industrielle du premier mode de réalisation, concernant le choix de la butée, le frein de ski et le choix des chaussures restent valables pour ce mode de réalisation. De plus, il convient de mentionner que la partie, non mobile en rotation, de la talonnière est dimensionnée pour venir se loger entre la surface supérieure du ski et la face inférieure de la semelle lorsque la chaussure est à plat par rapport au ski. Dans la variante du premier mode de réalisation, qui est présentée aux figures 6 et 7, la fixation de l'insert sur la semelle diffère. Tous les autres éléments constitutifs, leurs agencements et fonctionnements sont similaires au premier mode de réalisation. Seule la partie-avant (située à gauche sur la figure 6) deWhen it is desired to voluntarily release the boot from the binding, the skier exerts a force, according to known practice, on the upper face of the rear part. This effort causes the opening of the closure system, which pivots upwards the rotating part of the rear part and thus releases the insert. A forward tilting movement of the shoe releases it from the binding. It should be recalled that the remarks relating to the industrial application of the first embodiment, concerning the choice of the stop, the ski brake and the choice of shoes remain valid for this embodiment. In addition, it should be mentioned that the non-movable part of the heel is dimensioned to be received between the upper surface of the ski and the underside of the sole when the boot is flat relative to the ski. In the variant of the first embodiment, which is presented in FIGS. 6 and 7, the fixing of the insert to the sole differs. All the other constituent elements, their arrangements and operations are similar to the first embodiment. Only the front part (located on the left in Figure 6) of
1' insert 14 est solidaire de la semelle 13. Cette zone, qui est fixée par des moyens appropriés à la semelle, est comprise entre l'extrémité- avant de l' insert 14 et une position 31 située entre cette même extrémité et les faces-arrière 33 de l'insert. En arrière de cette position, la face inférieure de la réservation 19 dans la semelle 13 peut décoller de la face supérieure de l' insert 14.1 insert 14 is integral with the sole 13. This zone, which is fixed by means suitable for the sole, is between the front end of the insert 14 and a position 31 located between this same end and the faces -rear 33 of the insert. Behind this position, the lower face of the reservation 19 in the sole 13 can take off from the upper face of the insert 14.
Cette variante permet de dissocier le point de flexion 31 de la chaussure de l'extrémité-arrière 33 de l'insert. La position 31 est déterminée en fonction de la zone de flexion de la chaussure désirée par le skieur.This variant makes it possible to dissociate the point of flexion 31 of the shoe from the rear-end 33 of the insert. Position 31 is determined as a function of the flexion zone of the boot desired by the skier.
Il convient de mentionner que cette variante est également valable pour le second mode de réalisation.It should be mentioned that this variant is also valid for the second embodiment.
Cette variante peut être avantageusement utilisée pour des chaussures de petite pointure dont la zone correspondant aux métatarses est trop proche de l'extrémité-avant de la chaussure. Elle permet de placer le point de flexion de la chaussure au niveau des métatarses alors que l'arrière de l'insert est situé, en arrière de ce point, fonction de la distance minimale techniquement possible entre la butée et la pièce-arrière. This variant can advantageously be used for shoes of small size, the area corresponding to the metatarsals is too close to the front end of the shoe. It allows the flexion point of the shoe to be placed at the level of the metatarsals while the rear of the insert is located, behind this point, as a function of the minimum technically possible distance between the stop and the rear part.

Claims

REVENDICATIONS
1. Fixation de sécurité pour le ski de télémark, la randonnée nordique et le saut à ski caractérisée en ce que la partie- avant de la semelle (13) est maintenue, par un moyen de rappel élastique (6;16), entre une butée de sécurité (2;3), qui permet notamment un dégagement latéral ou diagonal de la chaussure sous un effort de torsion important, et une pièce-arrière (9) prenant appui sur un insert (14) situé dans la semelle(13).1. Safety binding for telemark skiing, Nordic hiking and ski jumping, characterized in that the front part of the sole (13) is held, by an elastic return means (6; 16), between a safety stop (2; 3), which allows in particular a lateral or diagonal release of the shoe under a significant torsional force, and a rear part (9) bearing on an insert (14) located in the sole (13) .
2. Fixation selon la revendication 1, caractérisée en ce que la pièce-arrière (9) est mobile en translation suivant la direction longitudinale du ski.2. A binding according to claim 1, characterized in that the rear part (9) is movable in translation in the longitudinal direction of the ski.
3. Fixation selon l'une des revendications 1 ou 2, caractérisée en ce que la pièce-arrière (9) possède une face-avant (41), en contact avec l'insert (14), qui décrit une portion de surface de révolution, d'axe situé dans le plan défini par la verticale, l'axe longitudinal du ski et le centre du ski, dont une portion de la trace dans ce plan est une courbe d'inclinaison renversée.3. Attachment according to one of claims 1 or 2, characterized in that the rear part (9) has a front face (41), in contact with the insert (14), which describes a surface portion of revolution, of axis located in the plane defined by the vertical, the longitudinal axis of the ski and the center of the ski, of which a portion of the trace in this plane is an inverted inclination curve.
4. Fixation selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le moyen de rappel élastique (6;16) est indépendant du ressort (29) de la butée de sécurité (2;3). 4. Attachment according to any one of claims 1 to 3, characterized in that the elastic return means (6; 16) is independent of the spring (29) of the safety stop (2; 3).
5. Fixation selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le moyen de rappel élastique (6;16) est actionné par un système de fermeture (15).5. Attachment according to any one of claims 1 to 4, characterized in that the elastic return means (6; 16) is actuated by a closure system (15).
6. Fixation selon l'une quelconque des revendications 1,2 ou 4, caractérisée en ce que la pièce-arrière (9) possède une face-avant (41), en contact avec l'insert (14), qui décrit une portion de surface de révolution, d'axe situé dans le plan défini par la verticale, l'axe longitudinal du ski et le centre du ski.6. Attachment according to any one of claims 1,2 or 4, characterized in that the rear part (9) has a front face (41), in contact with the insert (14), which describes a portion of surface of revolution, of axis located in the plane defined by the vertical, the longitudinal axis of the ski and the center of the ski.
7. Fixation selon l'une quelconque des revendications 1,2,4 ou 6, caractérisée en ce que la pièce-arrière (9) et le moyen de rappel élastique (16) sont une talonnière de fixation de sécurité de ski alpin.7. Binding according to any one of claims 1,2,4 or 6, characterized in that the rear part (9) and the elastic return means (16) are a heel piece for alpine ski safety binding.
8. Fixation selon l'une quelconque des revendications 1 à 5 ou 6 à 7, caractérisée en ce que l'insert (14) est solidaire de la semelle (13) sur la totalité de sa face supérieure. 8. Attachment according to any one of claims 1 to 5 or 6 to 7, characterized in that the insert (14) is integral with the sole (13) on the whole of its upper face.
9. Fixation selon l'une quelconque des revendications 1 à 5 ou 6 à 7, caractérisée en ce que la partie-avant de l' insert (14), située entre son extrémité-avant et le point (31) de flexion de la chaussure, est solidaire de la semelle (13). 9. Attachment according to any one of claims 1 to 5 or 6 to 7, characterized in that the front part of the insert (14), located between its front end and the point (31) of bending of the shoe, is integral with the sole (13).
EP96913605A 1995-04-21 1996-04-18 Safety binding for telemark, cross-country and ski-jumping skis Withdrawn EP0769977A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9505027A FR2733159B1 (en) 1995-04-21 1995-04-21 SAFETY BINDING FOR TELEMARK SKIING, NORTHERN HIKING AND SKI JUMP
FR9505027 1995-04-21
PCT/FR1996/000588 WO1996032992A1 (en) 1995-04-21 1996-04-18 Safety binding for telemark, cross-country and ski-jumping skis

Publications (1)

Publication Number Publication Date
EP0769977A1 true EP0769977A1 (en) 1997-05-02

Family

ID=9478478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96913605A Withdrawn EP0769977A1 (en) 1995-04-21 1996-04-18 Safety binding for telemark, cross-country and ski-jumping skis

Country Status (6)

Country Link
US (1) US5957478A (en)
EP (1) EP0769977A1 (en)
JP (1) JPH10501722A (en)
FR (1) FR2733159B1 (en)
NO (1) NO305306B1 (en)
WO (1) WO1996032992A1 (en)

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Publication number Priority date Publication date Assignee Title
FR2776200B1 (en) * 1998-03-19 2000-05-05 Salomon Sa DEVICE FOR CONNECTING A SHOE TO A SPORTS ARTICLE
US6685213B2 (en) 1998-04-24 2004-02-03 Rottefella As Touring, telemark, or cross-country ski binding
FR2820335B1 (en) * 2001-02-02 2003-03-07 Rossignol Sa INTERFACE PLATE TO BE SOLIDARIZED ON THE UPPER FACE OF A SKI
US6877759B2 (en) 2002-08-27 2005-04-12 Louis Dandurand Ski binding
US7216890B2 (en) * 2004-06-30 2007-05-15 Black Diamond Equipment, Ltd. Ski binding
US7219917B2 (en) * 2004-06-30 2007-05-22 Black Diamond Equipment, Ltd. Cartridge radius surface
FR2882658B1 (en) 2005-03-07 2007-05-04 Salomon Sa DOUBLE CONTROL FIXING DEVICE
FR2890317B1 (en) 2005-09-08 2007-11-23 Salomon Sa PERFECTLY ANCHORING FIXING DEVICE
FR2892314B1 (en) * 2005-10-20 2010-10-15 Salomon Sa SECURITY FASTENING
US7458598B2 (en) * 2005-12-05 2008-12-02 Jeffrey Giffin Telemark binding with releasable riser plate assembly
FR2894836B1 (en) 2005-12-16 2008-02-22 Salomon Sa BACKGROUND SKI SET AND DOWNHOLE SKI FIXING DEVICE
FR2899121B1 (en) 2006-03-29 2008-07-04 Salomon Sa BACKGROUND SKI SET AND DOWNHOLE SKI FIXING DEVICE
FR2910337B1 (en) * 2006-12-20 2009-06-05 Salomon Sa ARTICLE COMPRISING A MOBILE BUTTON BETWEEN AT LEAST TWO POSITIONS
EP2383025B1 (en) * 2010-04-27 2013-01-09 Sepp Heumann Safety binding system for jumping ski
US8876123B2 (en) 2011-04-05 2014-11-04 Erik Gawain BRADSHAW Exoskeleton and footwear attachment system
USD820932S1 (en) 2016-05-04 2018-06-19 Salomon S.A.S. Ski binding
USD820933S1 (en) 2016-05-04 2018-06-19 Salomon S.A.S. Ski binding

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US2235164A (en) * 1938-03-10 1941-03-18 Pfeiffer Paul Skifastening device
NO129236C (en) * 1971-07-27 1975-02-18 Bror With
DE2702963C2 (en) * 1977-01-25 1983-12-01 Manfred 8011 Kirchheim Schmid Combined touring and downhill ski safety binding
FR2575929B1 (en) * 1985-01-16 1987-04-30 Plichon Claude DEVICE FOR ATTACHING A SHOE TO A SKI
FR2595951B1 (en) * 1986-03-19 1989-08-11 Salomon Sa ASSEMBLY CONSISTING OF A CROSS-COUNTRY OR HIKING SKI BOOT AND A DEVICE FOR RETAINING THE FRONT OF THIS BOOT ON A SKI
FR2642980B1 (en) * 1989-02-14 1991-05-10 Salomon Sa ATTACHMENT DEVICE FOR CROSS-COUNTRY SKI AND FOOTWEAR FOR SUCH ATTACHMENT
DE9115082U1 (en) * 1991-01-17 1992-02-06 Witco A/S, Oslo, No

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Title
See references of WO9632992A1 *

Also Published As

Publication number Publication date
WO1996032992A1 (en) 1996-10-24
NO965419D0 (en) 1996-12-17
NO305306B1 (en) 1999-05-10
JPH10501722A (en) 1998-02-17
FR2733159A1 (en) 1996-10-25
US5957478A (en) 1999-09-28
FR2733159B1 (en) 1997-07-04
NO965419L (en) 1996-12-20

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