EP0193687B1 - Restraining device for a shoe at a ski - Google Patents

Restraining device for a shoe at a ski Download PDF

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Publication number
EP0193687B1
EP0193687B1 EP85400413A EP85400413A EP0193687B1 EP 0193687 B1 EP0193687 B1 EP 0193687B1 EP 85400413 A EP85400413 A EP 85400413A EP 85400413 A EP85400413 A EP 85400413A EP 0193687 B1 EP0193687 B1 EP 0193687B1
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EP
European Patent Office
Prior art keywords
lock
elastic system
binding according
spring
ski
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP85400413A
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German (de)
French (fr)
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EP0193687A1 (en
Inventor
Paul Arnulf
Josiane Dunand
Denis Gasquet
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Salomon SAS
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Salomon SAS
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Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Priority to EP85400413A priority Critical patent/EP0193687B1/en
Priority to DE8585400413T priority patent/DE3578997D1/en
Priority to US06/832,700 priority patent/US4856807A/en
Publication of EP0193687A1 publication Critical patent/EP0193687A1/en
Priority to US07/307,533 priority patent/US4893830A/en
Application granted granted Critical
Publication of EP0193687B1 publication Critical patent/EP0193687B1/en
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/20—Non-self-releasing bindings with special sole edge holders instead of toe-straps

Definitions

  • the present invention relates to a ski binding and in particular the energy means thereof and the control members intended to implement said bindings in the active restraint and / or inactive position for releasing an end of the boot.
  • ski bindings include a pivoting lock, part of which cooperates with the boot, for example its end, while another part is subjected to the action of an elastic system, a control member associated with said elastic system. and to the bolt, being capable of placing the binding in the active retaining and / or inactive position for releasing said end of the shoe.
  • a fixation is known e.g. by FR 2 447 731 in which the elastic system is a toggle system.
  • FR 2 497 674 shows an almost similar attachment, of the automatic type, comprising two elastic systems.
  • control member is constituted by a lever pivoted on the same axis as the latch and kinematically connected to the elastic system.
  • Such an arrangement of the control member and of the elastic system proves to be complicated due to the large number of parts constituting it (pressing roller, guide pin, lever, spring, etc.), and therefore a cost of high manufacturing.
  • the lock is obtained in an elastically deformable material to constitute both the lock itself and the energy of the fastener; a lever pivoted at a distance from the lock comprises a pressure finger intended to come to bear on a ramp of said lock in the active retaining position to force the latter to be applied to the end of the shoe.
  • the realization of the lock of such a fixing is however difficult to define because it must be obtained on the one hand with an attachment profile substantially corresponding to that of the end of the shoe sole and on the other hand, with a deformable zone or part allowing its elastic locking without allowing the relative movement of the shoe sole relative to the ski.
  • the lock can be provided only to grip the end of the shoe sole and it is the control lever which has an elastic system.
  • the control lever which has an elastic system.
  • French Patent No. 2,355,532 describes an assembly consisting of a support piece intended to receive a hooking portion of the shoe sole, an elastic system articulated on the ski and a lock pivoting about an axis integral with said elastic system.
  • This type of fastening is provided with a control member constituted by an extension of the lock formed substantially on the side opposite to that intended to come against the hooking portion of the shoe.
  • Such an embodiment has the drawback of releasing the lock from all the action of the elastic system, in the inactive position.
  • the ski binding, object of the invention proposes to remedy these drawbacks in a simple and effective manner.
  • This object is achieved by producing an elastic system composed of a spring, one part of which cooperates with the lock, while another part constitutes the control member, the lock-spring assembly being kinematically arranged to function as an articulation with toggle in which the spring remains under a certain tension for both of the active and inactive positions of said lock.
  • the cross-country binding for retaining a boot on a ski comprises a movable lock capable of cooperating with an associated part of the boot for locking it on the ski, a control lever or unlocking the lock to move it from a stable locking position to a stable unlocking position and an elastic system urging the lock in the locking position, and constituting a toggle system
  • the elastic system ( 9) comprises an actuating part cooperating with the lock and constituting therewith the toggle system, and in that the elastic system also serves as a lever for controlling the lock.
  • the binding comprises a movable lock arranged to pivot relative to the ski around a first axis, and an elastic system constituted by a U-shaped spring stirrup, the two lateral strands of which are disposed pivoting with respect to the ski around a second axis substantially parallel to the middle part of the U; this middle part is folded so on the one hand, to be elastically deformable by resting on an actuating ramp formed on the latch and on the other hand, to present a gripping part allowing the spring to pivot around its axis and therefore to move its actuation point on the ramp of the lock.
  • an elastic system constituted by a U-shaped spring stirrup, the two lateral strands of which are disposed pivoting with respect to the ski around a second axis substantially parallel to the middle part of the U; this middle part is folded so on the one hand, to be elastically deformable by resting on an actuating ramp formed on the latch and on the other hand, to present a gripping part allowing the spring to pivot around
  • the bolt-spring assembly is kinematically arranged to function as a toggle joint, the pivot axis of the bolt, that of the spring and the actuation point of the latter constitute the pivots; it suffices to move the spring actuation point on the ramp of the latch beyond the plane defined by the pivot axis of said latch and the pivot axis of the spring so that the elastic action of said spring tends to swing the lock in the same direction as the movement.
  • Abutment means are advantageously arranged on either side of the lock to determine the extreme limits of pivoting of the latter in one and the other of the positions of retention or release of the shoe sole.
  • the binding is of the type described in our European patent application filed today, and is more specifically designed as a binding intended to connect the front end of the boot to the ski.
  • the attachment part of the shoe is constituted by an iron of circular section, folded in a U-shape, the lateral strands of which are anchored in the front part of the shoe while a support piece, linked to the ski, is designed to receive by engagement from top to bottom, said hooking part.
  • the lock and the elastic system are arranged in the same manner as in the previous description, but this time the lock retains the part for attaching the boot to the ski by means of the support piece.
  • the elastic system object of the invention, is associated with a bottom fixing assembly.
  • the front end (1) of the shoe (2) is provided with a hooking part (3) capable of engaging from top to bottom, as in the direction (4) ( Figure 2), on a support piece (5) connected to the ski (6).
  • a movable lock (7) pivoting relative to the ski around a first axis (8) and an elastic system (9) constituted by a spring-caliper, also pivoting relative to the ski but around a second axis (10 ) and bearing on an actuating ramp (13) of said lock, are kinematically arranged to function as a toggle joint; for this, the axis (8) of the bolt and the axis (10) of the spring clip form the first two support points of the toggle joint, the third support point being constituted by the actuation point (11) a prominence (12) of the middle part of the spring clip (9) on the ramp (13); only the actuation point (11) being provided movable in position, it suffices to move the protuberance (12) of the spring clip (9) on the ramp (13) beyond the plane (14) defined by the axes (8) and (10) to reverse the toggle joint of the fixing assembly and therefore, to pass the lock (7) from one to the other of its retaining positions (FIG.
  • the elastic system is obtained, in accordance with the invention, in the form of a spring clip (9) ( Figures 1, 2, 3 and 4) having on the one hand, hooking parts (10) for its connection to the ski intended to serve as a pivot axis, on the other hand, a middle part comprising a protrusion (12) in the shape of a 0 (consisting of an actuating part (12) and two lateral strands (120) converging upwards), intended to be applied to an actuation zone, such as the ramp (13) of the latch (7), and finally, an elastically deformable zone (20) visible in FIGS.
  • the elastic system thus obtained occupies a relatively small volume, especially in the transverse direction, which allows its tilting, as in the direction (21), FIG. 1, towards the upper surface of the ski (6), simultaneous ment with the rotation of the bolt (7), Figure 2.
  • the elastic force is given by the resistance to torsion of the transverse strand ( 24).
  • FIGS. 5 and 6 spring calipers (25) and (30) which work more on bending thanks to specific folds.
  • the elastic deformation zone (26) is characterized by a certain winding of the strand of the spring clip (25) to form turns (27); in this case, the prominence (28) intended to be applied elastically to the lock can move along a rotating path, along (29) for example, by bending the turns (27).
  • the spring clip (30) comprises an elastic deformation zone (32) constituted by windings (33) crossed by the transverse strand (34) which forms an "8" whose flat base (31) or prominence , is intended to be applied to the lock.
  • the spring clip (40), FIG. 7, is pivoted transversely to the ski (41) by means of retaining parts such as sleeves (44), secured to the end of the side strands (45) and pivoted around axes (43) connected to a support piece (46).
  • the spring clip (50) can be made in two parts (51) connected to each other by an assembly sleeve (52) ( Figures 8 and 9).
  • the parts (51) are linked together in the elastic, deformation zone (53), but could be at the level of the prominence (54).
  • the two parts (51) can be folded differently and in particular have their ends (55) facing each other rather than affixing, as shown.
  • the assembly sleeve (25) may comprise a part or an arrangement favoring manipulation of the elastic system on the lock, for example, an extension (520) forming a lever and shown in phantom in FIG. 8.
  • an elastic system according to the invention can be adapted to other types of fasteners; for example, in FIG. 10, the binding is intended to retain the rear end (60) of a boot (61) on a ski (62).
  • the latch (63) is pivoted about a transverse axis (64) and comprises a ramp (65) for actuation on which a spring clip (66), according to the invention, is supported by its prominence (67).
  • the spring (66) is pivoted at a distance from the axis (64) of the lock about another axis (68) so that by operating said spring in the release position of the lock, such as in the direction ( 69), the prominence (67) of the ramp (65) for actuating the latter and vice versa is released, for the retaining position, according to (70).
  • a part can be interposed between the prominence of the spring and the latch, and the latch can be associated with a means of gripping such as a jaw intended to cooperate with the attachment portion or sole of the shoe.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

La présente invention concerne une fixation de ski et en particulier les moyens d'énergie de celle-ci et les organes de commande destinés à mettre en oeuvre lesdites fixations en position active de retenue et/ou inactive de libération d'une extrémité de chaussure.The present invention relates to a ski binding and in particular the energy means thereof and the control members intended to implement said bindings in the active restraint and / or inactive position for releasing an end of the boot.

La plupart des fixations de ski connues comportent un verrou pivotant dont une partie coopère avec la chaussure, par exemple son extrémité, tandis qu'une autre partie est soumise à l'action d'un système élastique, un organe de commande associée audit système élastique et au verrou, étant apte à mettre la fixation en position active de retenue et/ou inactive de libération de ladite extrémité de chaussure. Une telle fixation est connue par ex. par le FR 2 447 731 dans lequel le système élastique est un système à genouillère. Le FR 2 497 674 montre une fixation à peu près similaire, de type automatique, comportant deux systèmes élastiques.Most known ski bindings include a pivoting lock, part of which cooperates with the boot, for example its end, while another part is subjected to the action of an elastic system, a control member associated with said elastic system. and to the bolt, being capable of placing the binding in the active retaining and / or inactive position for releasing said end of the shoe. Such a fixation is known e.g. by FR 2 447 731 in which the elastic system is a toggle system. FR 2 497 674 shows an almost similar attachment, of the automatic type, comprising two elastic systems.

Dans la demande de brevet allemand n° 26 51 562 par exemple, l'organe de commande est constitué par un levier pivoté sur le même axe que le verrou et relié cinématiquement au système élastique. Un tel agencement de l'organe de commande et du système élastique se révèle compliqué du fait du nombre important de pièces le constituant (galet presser, axe de guidage, levier, ressort, etc...), et donc d'un coût de fabrication élevé.In German patent application No. 26 51 562 for example, the control member is constituted by a lever pivoted on the same axis as the latch and kinematically connected to the elastic system. Such an arrangement of the control member and of the elastic system proves to be complicated due to the large number of parts constituting it (pressing roller, guide pin, lever, spring, etc.), and therefore a cost of high manufacturing.

Dans d'autres fixations telles que celle décrite dans le brevet allemand n° 807 789, le verrou est obtenu dans un matériau déformable élastiquement pour constituer à la fois le verrou proprement dit et le moyen d'énergie de la fixation; un levier pivoté à distance du verrou comporte un doigt de pression destiné à venir s'appuyer sur une rampe dudit verrou en position active de retenue pour forcer ce dernier à s'appliquer sur l'extrémité de la chaussure. La réalisation du verrou d'une telle fixation est toutefois difficile à définir car celui-ci doit être obtenu d'une part avec un profil d'accrochage sensiblement correspondant à celui de l'extrémité de la semelle de chaussure et d'autre part, avec une zone ou partie déformable permettant son verrouillage élastique sans pour autant autoriser le déplacement relatif de la semelle de chaussure par rapport au ski. En outre, pour mettre la fixation en position inactive, il est nécessaire de libérer le verrou de l'action du levier.In other fasteners such as that described in German Patent No. 807,789, the lock is obtained in an elastically deformable material to constitute both the lock itself and the energy of the fastener; a lever pivoted at a distance from the lock comprises a pressure finger intended to come to bear on a ramp of said lock in the active retaining position to force the latter to be applied to the end of the shoe. The realization of the lock of such a fixing is however difficult to define because it must be obtained on the one hand with an attachment profile substantially corresponding to that of the end of the shoe sole and on the other hand, with a deformable zone or part allowing its elastic locking without allowing the relative movement of the shoe sole relative to the ski. In addition, to put the fixing in the inactive position, it is necessary to release the lock from the action of the lever.

Encore tel que dans le brevet autrichien n° 171 853, le verrou peut être prévu que pour agripper l'extrémité de la semelle de chaussure et c'est le levier de commande qui comporte un système élastique. Dans cet exemple, nous avons à nouveau un nombre relativement important de pièces mises en oeuvre et la mise en position inactive du verrou nécessite de libérer toute l'énergie du système élastique, laquelle énergie devra être entièrement restituée lors de l'opération du chaussage.Still as in Austrian patent No. 171,853, the lock can be provided only to grip the end of the shoe sole and it is the control lever which has an elastic system. In this example, we again have a relatively large number of parts used and putting the lock inactive position requires releasing all the energy from the elastic system, which energy must be fully restored during the fitting operation.

Enfin, pour citer les fixations de ski destinées plus précisément à retenir l'extrémité avant d'une chaussure de ski, le brevet français n° 2 355 532 décrit un ensemble constitué par une pièce d'appui destinée à recevoir une partie d'accrochage de la semelle de chaussure, un système élastique articulé sur le ski et un verrou pivotant autour d'un axe solidaire dudit système élastique. Ce type de fixation est pourvu d'un organe de commande constitué par un prolongement du verrou ménagé sensiblement du côté opposé à celui destiné à venir contre la partie d'accrochage de chausseure. Une telle réalisation présente l'inconvénient de libérer le verrou de toute l'action du système élastique, en position inactive.Finally, to cite the ski bindings intended more precisely for retaining the front end of a ski boot, French Patent No. 2,355,532 describes an assembly consisting of a support piece intended to receive a hooking portion of the shoe sole, an elastic system articulated on the ski and a lock pivoting about an axis integral with said elastic system. This type of fastening is provided with a control member constituted by an extension of the lock formed substantially on the side opposite to that intended to come against the hooking portion of the shoe. Such an embodiment has the drawback of releasing the lock from all the action of the elastic system, in the inactive position.

La fixation de ski, objet de l'invention, se propose de remédier à ces inconvénients de manière simple et efficace. Ce but est attéint en réalisant un système élastique composé d'un ressort dont une partie coopère avec le verrou, tandis qu'une autre partie constitue l'organe de commande, l'ensemble verrou-ressort étant agencé cinématiquement pour fonctionner comme une articulation à genouillère dans laquelle le ressort reste sous une certaine tension pour l'une et l'autre des positions active et inactive dudit verrou. Conformément à l'invention, la fixation de ski de fond pour retenir une chaussure sur un ski comprend un verrou mobile apte à coopérer avec une partie associée de la chaussure pour le verrouillage de celle-ci sur le ski, un levier de commande ou de déverrouillage du verrou pour déplacer celui-ci d'une position de verrouillage stable à une position de déverrouillage stable et un système élastique sollicitant le verrou en position de verrouillage, et constituant un système à genouillère, et est caractérisée en ce que le système élastique (9) comprend une partie d'actionnement coopérant avec le verrou et constituant avec celui-ci le système à genouillère, et en ce que le système élastique sert également de levier de commande du verrou.The ski binding, object of the invention, proposes to remedy these drawbacks in a simple and effective manner. This object is achieved by producing an elastic system composed of a spring, one part of which cooperates with the lock, while another part constitutes the control member, the lock-spring assembly being kinematically arranged to function as an articulation with toggle in which the spring remains under a certain tension for both of the active and inactive positions of said lock. According to the invention, the cross-country binding for retaining a boot on a ski comprises a movable lock capable of cooperating with an associated part of the boot for locking it on the ski, a control lever or unlocking the lock to move it from a stable locking position to a stable unlocking position and an elastic system urging the lock in the locking position, and constituting a toggle system, and is characterized in that the elastic system ( 9) comprises an actuating part cooperating with the lock and constituting therewith the toggle system, and in that the elastic system also serves as a lever for controlling the lock.

Selon un premier mode de réalisation de l'invention, la fixation comporte un verrou mobile disposé pivotant par rapport au ski autour d'un premier axe, et un système élastique constitué par un étrier ressort en forme de U dont les deux brins latéraux sont disposés pivotants par rapport au ski autour d'un deuxième axe sensiblement parallèle à la partie médiane du U; cette partie médiane est pliée de manière d'une part, à être déformable élastiquement en prenant appui sur une rampe d'actionnement ménagée sur le verrou et d'autre part, à présenter une partie préhen- sible permettant de faire pivoter le ressort autour de son axe et donc de déplacer son point d'actionnement sur la rampe du verrou. L'ensemble verrou-ressort est agencé cinématiquement pour fonctionner comme une articulation à genouillère, dont l'axe de pivotement du verrou, celui du ressort et le point d'actionnement de ce dernier constituent les pivots; il suffit ainsi de déplacer le point d'actionnement du ressort sur la rampe du verrou au-delà du plan défini par l'axe de pivotement dudit verrou et de l'axe de pivotement du ressort pour que l'action élastique dudit ressort tende à faire basculer le verrou dans le même sens que le déplacement. Des moyens de butée sont avantageusement disposés de part et d'autre du verrou pour déterminer les limites extrêmes de pivotement de ce dernier dans l'une et l'autre des positions de retenue ou de libération de la semelle de chaussure.According to a first embodiment of the invention, the binding comprises a movable lock arranged to pivot relative to the ski around a first axis, and an elastic system constituted by a U-shaped spring stirrup, the two lateral strands of which are disposed pivoting with respect to the ski around a second axis substantially parallel to the middle part of the U; this middle part is folded so on the one hand, to be elastically deformable by resting on an actuating ramp formed on the latch and on the other hand, to present a gripping part allowing the spring to pivot around its axis and therefore to move its actuation point on the ramp of the lock. The bolt-spring assembly is kinematically arranged to function as a toggle joint, the pivot axis of the bolt, that of the spring and the actuation point of the latter constitute the pivots; it suffices to move the spring actuation point on the ramp of the latch beyond the plane defined by the pivot axis of said latch and the pivot axis of the spring so that the elastic action of said spring tends to swing the lock in the same direction as the movement. Abutment means are advantageously arranged on either side of the lock to determine the extreme limits of pivoting of the latter in one and the other of the positions of retention or release of the shoe sole.

Selon un mode de réalisation préféré, la fixation est du type de celle décrite dans notre demande de brevet européen déposée ce jour, et est plus spécialement conçue comme une fixation destinée à relier l'extrémité avant de la chaussure au ski. Dans ce cas de figure, la partie d'accrochage de la chaussure est constituée par un fer de section circulaire, plié en forme de U dont les brins latéraux sont ancrés dans la partie antérieure de la chaussure tandis qu'une pièce d'appui, liée au ski, est prévue pour recevoir par engagement de haut en bas, ladite partie d'accrochage. Le verrou et le système élastique sont agencés de la même manière que dans la description précédente mais, cette fois, le verrou retient la partie d'accrochage de chaussure sur le ski par l'intermédiaire de la pièce d'appui.According to a preferred embodiment, the binding is of the type described in our European patent application filed today, and is more specifically designed as a binding intended to connect the front end of the boot to the ski. In this case, the attachment part of the shoe is constituted by an iron of circular section, folded in a U-shape, the lateral strands of which are anchored in the front part of the shoe while a support piece, linked to the ski, is designed to receive by engagement from top to bottom, said hooking part. The lock and the elastic system are arranged in the same manner as in the previous description, but this time the lock retains the part for attaching the boot to the ski by means of the support piece.

L'invention sera du reste mieux comprise en se reportant à la description qui va suivre en référence aux dessins schématiques annexés donnant, à titre d'exemples, quelques modes de réalisation préférés.

  • Les figures 1 et 2 sont des vues en perspective d'un ensemble de fixation destiné à relier l'extrémité antérieure d'une chaussure sur un ski et comportant un système élastique conforme à l'invention, lequel, en figure 1, est représenté en position active de retenue de la partie d'accrochage de la chaussure et, en figure 2, est représenté en position inactive de libération de ladite partie d'accrochage.
  • La figure 3 est une vue en perspective montrant la forme particulière du système élastique.
  • La figure 4 est une vue en élévation du système élastique représentant un sens de travail de ce dernier.
  • Les figures 5 et 6 représentent des modes de réalisation du système élastique selon lesquels le système élastique est obtenu à partir d'un seul brin tel que représenté précédemment.
  • La figure 7 montre une autre possibilité d'articulation d'un système élastique toujours selon l'invention.
  • La figure 8 est une vue en perspective d'un système élastique réalisé à partir de deux brins assemblés entre eux par une agrafe.
  • La figure 9 est une vue en coupe selon IX-IX du système élastique de la figure 8 montrant un détail de l'assemblage des brins.
  • La figure 10 est une vue schématique en élévation, d'un ensemble de fixation destiné à retenir l'extrémité postérieure d'une chaussure sur un ski et pourvu d'un système élastique conforme à l'invention.
The invention will moreover be better understood by referring to the description which follows with reference to the appended schematic drawings giving, by way of examples, some preferred embodiments.
  • Figures 1 and 2 are perspective views of a fastening assembly for connecting the front end of a shoe on a ski and comprising an elastic system according to the invention, which, in Figure 1, is shown in active position for retaining the attachment portion of the boot and, in FIG. 2, is shown in the inactive release position of said attachment portion.
  • Figure 3 is a perspective view showing the particular shape of the elastic system.
  • Figure 4 is an elevational view of the elastic system showing a working direction of the latter.
  • Figures 5 and 6 show embodiments of the elastic system according to which the elastic system is obtained from a single strand as shown above.
  • Figure 7 shows another possibility of articulation of an elastic system still according to the invention.
  • Figure 8 is a perspective view of an elastic system made from two strands assembled together by a staple.
  • Figure 9 is a sectional view along IX-IX of the elastic system of Figure 8 showing a detail of the assembly of the strands.
  • Figure 10 is a schematic elevational view of a fastening assembly for retaining the rear end of a shoe on a ski and provided with an elastic system according to the invention.

Selon un mode préféré de réalisation de l'invention, figures 1 et 2, le système élastique, object de l'invention, est associé à un ensemble de fixation de fond. De manière connue en soi, l'extrémité antérieure (1) de la chaussure (2) est pourvue d'une partie d'accrochage (3) susceptible de s'engager de haut en bas, tel que dans le sens (4) (figure 2), sur une pièce d'appui (5) reliée au ski (6). Un verrou mobile (7) pivotant par rapport au ski autour d'un premier axe (8) et un système élastique (9) constitué par un étrier-ressort, pivotant lui aussi par rapport au ski mais autour d'un deuxième axe (10) et prenant appui sur une rampe d'actionnement (13) dudit verrou, sont agencés cinématiquement pour fonctionner comme une articulation à genouillère; pour cela, l'axe (8) du verrou et l'axe (10) de l'étrier-ressort forment les deux premiers points d'appui de la genouillère, le troisième point d'appui étant constitué par le point d'actionnement (11) d'une proéminence (12) de la partie médiane de l'étrier-ressort (9) sur la rampe (13); seul le point d'actionnement (11) étant prévu mobile en position, il suffit de déplacer la proéminence (12) de l'étrier-ressort (9) sur la rampe (13) au-delà du plan (14) défini par les axes (8) et (10) pour inverser l'articulation à genouillère de l'ensemble de fixation et donc, pour faire passer le verrou (7) de l'une à l'autre de ses positions de retenue (figure 1) et de libération (figure 2). Le système élastique est obtenu, conformément à l'invention, sous la forme d'un étrier-ressort (9) (figures 1, 2, 3 et 4) présentant d'une part, des parties d'accrochage (10) pour sa liaison au ski prévues pour servir d'axe de pivotement, d'autre part, une partie médiane comportant une proéminence (12) en forme de 0 (constitué d'une partie d'actionnement (12) et de deux brins latéraux (120) convergeant vers le haut), destinée à venir s'appliquer sur une zone d'actionnement, telle que la rampe (13) du verrou (7), et enfin, une zone (20) visible en figures 3 et 4, élastiquement déformable située sensiblement dans le prolongement des brins latéraux (15) et de la proéminence (12) du ressort, au-delà de cette dernière. Cette construction particulière de l'étrier-ressort est très avantageuse pour les fixations de ski devant nécessiter un encombrement réduit et un poids minimum, ce qui est le cas notamment des fixations dites de fond, du type de celle des figures 1 et 2; en effet, un tel étrier-ressort (9) constitue à la fois le moyen d'énergie de la fixation, l'un des organes fonctin- nels du système de verrouillage, et l'organe de manoeuvre volontaire de ladite fixation pour l'une et/ou l'autre des positions de retenue et libération de la chaussure. Un autre avantage de réaliser la zone (20) de déformation élastique de l'étrier-ressort (9) au-delà de la proéminence (12) réside dans le fait que l'on dispose d'un certain espace permettant de moduler le ressort selon la forme la plus appropriée à l'action élastique souhaitée sur le verrou (7) autant pour le sens de flexion (tel que selon (22) figure 4, par exemple), la course élastique (23), que pour l'effort. Enfin, on notera que le système élastique ainsi obtenu occupe un volume relativement faible, surtout dans le sens transversal, ce qui autorise son basculement, tel que dans le sens (21), figure 1, vers la surface supérieure du ski (6), simultanément avec la rotation du verrou (7), figure 2. Dans ce premier exemple de réalisation de l'étrier-ressort (9), on s'aperçoit que l'effort élastique est donnée par la résistance à la torsion du brin transversal (24).According to a preferred embodiment of the invention, Figures 1 and 2, the elastic system, object of the invention, is associated with a bottom fixing assembly. In a manner known per se, the front end (1) of the shoe (2) is provided with a hooking part (3) capable of engaging from top to bottom, as in the direction (4) ( Figure 2), on a support piece (5) connected to the ski (6). A movable lock (7) pivoting relative to the ski around a first axis (8) and an elastic system (9) constituted by a spring-caliper, also pivoting relative to the ski but around a second axis (10 ) and bearing on an actuating ramp (13) of said lock, are kinematically arranged to function as a toggle joint; for this, the axis (8) of the bolt and the axis (10) of the spring clip form the first two support points of the toggle joint, the third support point being constituted by the actuation point (11) a prominence (12) of the middle part of the spring clip (9) on the ramp (13); only the actuation point (11) being provided movable in position, it suffices to move the protuberance (12) of the spring clip (9) on the ramp (13) beyond the plane (14) defined by the axes (8) and (10) to reverse the toggle joint of the fixing assembly and therefore, to pass the lock (7) from one to the other of its retaining positions (FIG. 1) and release (Figure 2). The elastic system is obtained, in accordance with the invention, in the form of a spring clip (9) (Figures 1, 2, 3 and 4) having on the one hand, hooking parts (10) for its connection to the ski intended to serve as a pivot axis, on the other hand, a middle part comprising a protrusion (12) in the shape of a 0 (consisting of an actuating part (12) and two lateral strands (120) converging upwards), intended to be applied to an actuation zone, such as the ramp (13) of the latch (7), and finally, an elastically deformable zone (20) visible in FIGS. 3 and 4 located substantially in the extension of the lateral strands (15) and of the protrusion (12) of the spring, beyond the latter. This particular construction of the spring-caliper is very advantageous for ski bindings which require a reduced size and a minimum weight, which is the case in particular with so-called bottom bindings, of the type of that of FIGS. 1 and 2; in fact, such a spring clip (9) constitutes both the energy means of the binding, one of the functional members of the locking system, and the voluntary maneuvering member of said binding for the one and / or the other of the shoe retention and release positions. Another advantage of making the zone (20) of elastic deformation of the spring-caliper (9) beyond the prominence (12) lies in the fact that there is a certain space allowing the spring to be modulated. according to the form most suitable for the desired elastic action on the latch (7) as much for the direction of bending (as according to (22) Figure 4, for example), the elastic stroke (23), as for the force . Finally, it will be noted that the elastic system thus obtained occupies a relatively small volume, especially in the transverse direction, which allows its tilting, as in the direction (21), FIG. 1, towards the upper surface of the ski (6), simultaneous ment with the rotation of the bolt (7), Figure 2. In this first example of embodiment of the spring clip (9), we see that the elastic force is given by the resistance to torsion of the transverse strand ( 24).

Pour obtenir un ressort avec des caractéristiques mécaniques différentes et/ou dont les contraintes élastiques sont plus ou moins sévères, on peut réaliser, figures 5 et 6, des étriers-ressorts (25) et (30) qui travaillent davantage à la flexion grâce à des pliages spécifiques. Ainsi, figure 5, la zone de déformation élastique (26) est caractérisée par un certain enroulement du brin de l'étrier-ressort (25) pour former des spires (27); dans ce cas de figure, la proéminence (28) destinée à s'appliquer élastiquement sur le verrou pourra se déplacer selon une trajectoire tournante, selon (29) par exemple, par flexion des spires (27). En figure 6, l'étrier-ressort (30) comporte une zone de déformation élastique (32) constituée par des enroulements (33) croisées du brin transversal (34) qui forme un "8" dont la base aplatie (31) ou proéminence, est destinée à s'appliquer sur le verrou.To obtain a spring with different mechanical characteristics and / or whose elastic stresses are more or less severe, it is possible to produce, FIGS. 5 and 6, spring calipers (25) and (30) which work more on bending thanks to specific folds. Thus, in FIG. 5, the elastic deformation zone (26) is characterized by a certain winding of the strand of the spring clip (25) to form turns (27); in this case, the prominence (28) intended to be applied elastically to the lock can move along a rotating path, along (29) for example, by bending the turns (27). In FIG. 6, the spring clip (30) comprises an elastic deformation zone (32) constituted by windings (33) crossed by the transverse strand (34) which forms an "8" whose flat base (31) or prominence , is intended to be applied to the lock.

Selon un autre mode de réalisation de l'étrier-ressort (40), figure 7, celui-ci est pivoté transversalement au ski (41) par l'intermédiaire de pièces de retenue telles que des manchons (44), solidarisées de l'extrémité des brins latéraux (45) et pivotées autour d'axes (43) reliés à une pièce support (46). D'autre part, l'étrier-ressort (50) peut être réalisé en deux parties (51) reliées entre elles par un manchon (52) d'assemblage (figures 8 et 9). Dans cet exemple de réalisation, les parties (51) sont liées entre elles dans la zone de défor- matio.n, élastique (53), mais pourraient l'être au niveau de la proéminence (54). Evidemment, les deux parties (51) peuvent être pliées différemment et en particulier avoir leurs extrémités (55) en vis-à-vis plutôt qu'en apposition, tel que représenté. En outre, le manchon (25) d'assemblage peut comporter une partie ou un aménagement favorisant les manipulations du système élastique sur le verrou, par exemple, un prolongement (520) formant levier et représenté en trait mixte à la figure 8.According to another embodiment of the spring clip (40), FIG. 7, the latter is pivoted transversely to the ski (41) by means of retaining parts such as sleeves (44), secured to the end of the side strands (45) and pivoted around axes (43) connected to a support piece (46). On the other hand, the spring clip (50) can be made in two parts (51) connected to each other by an assembly sleeve (52) (Figures 8 and 9). In this exemplary embodiment, the parts (51) are linked together in the elastic, deformation zone (53), but could be at the level of the prominence (54). Obviously, the two parts (51) can be folded differently and in particular have their ends (55) facing each other rather than affixing, as shown. In addition, the assembly sleeve (25) may comprise a part or an arrangement favoring manipulation of the elastic system on the lock, for example, an extension (520) forming a lever and shown in phantom in FIG. 8.

Il est bien entendu qu'un système élastique conforme à l'invention peut être adapté à d'autres types de fixations; ainsi par exemple, figure 10, la fixation est destinée à retenir l'extrémité postérieure (60) d'une chaussure (61) sur un ski (62). Le verrou (63) est pivoté autour d'un axe transversal (64) et comporte une rampe (65) d'actionnement sur laquelle un étrier-ressort (66), selon l'invention, prend appui par sa proéminence (67). Le ressort (66) est pivoté à distance de l'axe (64) du verrou autour d'un autre axe (68) de telle manière qu'en manoeuvrant ledit ressort dans la position de libération du verrou, tel que dans le sens (69), on dégage la proéminence (67) de la rampe (65) d'actionnement de ce dernier et inversement, pour la position de retenue, selon (70).It is understood that an elastic system according to the invention can be adapted to other types of fasteners; for example, in FIG. 10, the binding is intended to retain the rear end (60) of a boot (61) on a ski (62). The latch (63) is pivoted about a transverse axis (64) and comprises a ramp (65) for actuation on which a spring clip (66), according to the invention, is supported by its prominence (67). The spring (66) is pivoted at a distance from the axis (64) of the lock about another axis (68) so that by operating said spring in the release position of the lock, such as in the direction ( 69), the prominence (67) of the ramp (65) for actuating the latter and vice versa is released, for the retaining position, according to (70).

Selon d'autres formes de réalisation de l'ensemble de fixation, toujours conformément à l'invention, mais non représentées, une pièce peut être interposée entre la proéminence du ressort et le verrou, et le verrou peut être associé à un moyen d'agrippage tel qu'une mâchoire destinée à coopérer avec la partie d'accrochage ou semelle de la chaussure.According to other embodiments of the fixing assembly, still in accordance with the invention, but not shown, a part can be interposed between the prominence of the spring and the latch, and the latch can be associated with a means of gripping such as a jaw intended to cooperate with the attachment portion or sole of the shoe.

Claims (14)

1. A cross-country binding for retaining a shoe on a ski, of the type comprising a movable lock (7, 63) adapted to cooperate with an associated portion (3) of the shoe for the locking thereof on the ski, a control or unlocking lever of the lock (7, 63) for displacing it into a stable locking position having a stable unlocking position and an elastic system (9, 30, 40, 50) biasing the lock of the lock position, and constituting a toggle-joint system, characterized in that the elastic system (9, 30, 40, 50) comprises an activation portion (12,28,31,54) cooperating with the lock (7, 63) and constituting therewith the toggle-joint system, and in that the elastic system (9, 30, 40, 50) likewise serves as a control lever of the lock.
2. A binding according to claim 1, characterized in that the lock (7, 63) and the elastic system are journalled on the ski, the respective journal axes (8,10, 43) of this lock and of the elastic system on the ski defining the dead point line (14) of the toggle-joint, and in that the activation portion (12, 28, 31, 54, 67) of the elastic system cooperating with the lock (7, 63) constitutes the movable journal axis of the toggle-joint.
3. Binding according to claim 2, characterized in that the activation portion (12, 28, 31, 54, 67) of the elastic system is displaceably mounted on the lock.
4. Binding according to claim 3, characterized in that the displacement of the activation portion of the elastic system on the lock is limited by two abutments.
5. Binding according to claims 1-4, characterized in that the elastic system (9, 30, 40) has an essentially planar shape.
6. Binding according to claims 1-5, characterized in that the elastic system is constituted by a U-shaped stirrup journalled at the end (10, 43, 68) of each of its arm on the ski, and comprising in its median portion a projection (12, 28, 31, 54, 67) constituting the activation portion of this elastic system.
7. Binding according to claim 6, characterized in that the movable lock (7, 63) is pivotably mounted around a transverse axis (8) parallel to that of the ends (10, 43, 68) of the spring-stirrup.
8. Binding according to claim 6 or 7, characterized in that the median portion of the spring-stirrup has a flexible zone (26) constituted by at least one winding forming at least one spiral (27).
9. A binding according to claim 6 or 7, characterized in that the median portion of the spring-stirrup and its projection (12) has a flexible zone (20) in the general form of an omega.
10. Binding according to claim 6 or 7, characterized in that the median portion of the spring-stirrup and its projection (31) have a flexible zone (32) in the general form of an "8".
11. Binding according to any one of claims 6-10, characterized in that the spring is formed of two portions (51) connected to one another by an assembly element (52) in the flexible zone (53).
12. Binding according to claim 11, characterized in that the assembly element (52) comprises an extension (520) forming the manipulation lever of the elastic system.
13. Binding according to any one of claims 6-12, characterized in that the ends (10) of the lateral portions of the spring-stirrup (9, 25, 30, 51, 66) generally having a "U" shape are folded substantially at 90° to constitute the pivot axis of the elastic system.
14. Binding according to any one of claims 6-12, characterized in that the ends of the lateral portions (45) of the spring-stirrup (40) generally having a "U" shape are provided with cuffs (44) connected to a support element (46) by means of axes (42) constituting the pivot axis of the elastic system.
EP85400413A 1985-03-05 1985-03-05 Restraining device for a shoe at a ski Expired - Lifetime EP0193687B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP85400413A EP0193687B1 (en) 1985-03-05 1985-03-05 Restraining device for a shoe at a ski
DE8585400413T DE3578997D1 (en) 1985-03-05 1985-03-05 RESTRAINT DEVICE FOR A SHOE ON A SKI.
US06/832,700 US4856807A (en) 1985-03-05 1986-02-25 Apparatus for the retention of a boot on a ski
US07/307,533 US4893830A (en) 1985-03-05 1989-02-08 Apparatus for the retention of a boot on a ski

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85400413A EP0193687B1 (en) 1985-03-05 1985-03-05 Restraining device for a shoe at a ski

Publications (2)

Publication Number Publication Date
EP0193687A1 EP0193687A1 (en) 1986-09-10
EP0193687B1 true EP0193687B1 (en) 1990-08-01

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Application Number Title Priority Date Filing Date
EP85400413A Expired - Lifetime EP0193687B1 (en) 1985-03-05 1985-03-05 Restraining device for a shoe at a ski

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US (2) US4856807A (en)
EP (1) EP0193687B1 (en)
DE (1) DE3578997D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2635014B1 (en) * 1988-08-05 1990-10-12 Salomon Sa CROSS-COUNTRY SKI ATTACHMENT WITH AUTOMATIC CLOSING

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH278972A (en) * 1948-05-21 1951-11-15 With Bror Ski binding.
DE807789C (en) * 1950-02-02 1951-07-05 Franz Schwaerzler Ski binding
CH281158A (en) * 1950-03-13 1952-02-29 Brunschweiler & Cie A Hold-down device for ski heels to be attached to the ski.
US3920257A (en) * 1975-01-17 1975-11-18 Wilhelm Fredriksen Cross-country type ski binding system
US4049291A (en) * 1976-03-24 1977-09-20 Nunan Denis M Combination removable release ski binding
FI771004A (en) * 1976-04-06 1977-10-07 Witco As
SE398297B (en) * 1976-04-15 1977-12-19 Joon Olof Rune SKI BINDING OF SPEECH TYPE
FR2355532A1 (en) * 1976-04-28 1978-01-20 Salomon & Fils F Locating stop for ski boot on ski - has rigid wire loop with ends turned in at angle and held by plate to grip by elastic deformation
DE2651562A1 (en) * 1976-11-11 1978-05-18 Ver Baubeschlag Gretsch Co Safety fixing for ski-boot - has spring movable for release by very light force applied to hand operated lever
DE2707626C2 (en) * 1977-02-23 1985-11-14 Geze Gmbh, 7250 Leonberg Cross-country binding
US4145070A (en) * 1977-10-25 1979-03-20 Doure Ski Binding Company Ski binding
FR2439602A1 (en) * 1978-10-24 1980-05-23 Salomon & Fils F DEVICE FOR HOLDING THE END OF A SHOE ON A SKI, PARTICULARLY FASTENING FOR CROSS-COUNTRY OR HIKING SKI
FR2447731A1 (en) * 1979-01-31 1980-08-29 Salomon & Fils F DEVICE FOR CONNECTING A SHOE WITH A SKI, PARTICULARLY FOR CROSS-COUNTRY SKIING
FR2497674B2 (en) * 1979-01-31 1985-07-26 Salomon & Fils F DEVICE FOR ATTACHING A SHOE TO A SKI
DE3151566A1 (en) * 1981-01-13 1982-10-28 Etablissements François Salomon et Fils, 74011 Annecy, Haute-Savoie DEVICE FOR ATTACHING A SHOE TO A SKI
CA1181445A (en) * 1981-08-17 1985-01-22 Roderick A. Cooper Toe binding for skis
DE3263755D1 (en) * 1981-08-17 1985-06-27 Warrington Inc Boot-binding combination for use in cross-country skiing
FR2527081A1 (en) * 1982-05-21 1983-11-25 Look Sa FIXING FOR BACKGROUND SKIING
FR2540392B1 (en) * 1983-02-09 1985-07-19 Salomon & Fils F DEVICE FOR ATTACHING A SHOE TO A CROSS-COUNTRY OR HIKING SKI
DE3306165A1 (en) * 1983-02-22 1984-08-23 Banke, Franz, 8254 Isen Safety ski binding

Also Published As

Publication number Publication date
US4856807A (en) 1989-08-15
DE3578997D1 (en) 1990-09-06
US4893830A (en) 1990-01-16
EP0193687A1 (en) 1986-09-10

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