EP3827887A1 - Rear attachment element for ski mountaineering - Google Patents

Rear attachment element for ski mountaineering Download PDF

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Publication number
EP3827887A1
EP3827887A1 EP20315457.0A EP20315457A EP3827887A1 EP 3827887 A1 EP3827887 A1 EP 3827887A1 EP 20315457 A EP20315457 A EP 20315457A EP 3827887 A1 EP3827887 A1 EP 3827887A1
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EP
European Patent Office
Prior art keywords
control plate
lever
mode
ski
elastic member
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.)
Pending
Application number
EP20315457.0A
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German (de)
French (fr)
Inventor
Pierre Gignoux
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Individual
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Individual
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Publication date
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Publication of EP3827887A1 publication Critical patent/EP3827887A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/006—Ski bindings with a climbing wedge
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
    • A63C7/1006—Ski-stoppers
    • A63C7/1013—Ski-stoppers actuated by the boot
    • A63C7/1033—Ski-stoppers actuated by the boot articulated about at least two transverse axes
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/0807—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings for both towing and downhill skiing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/086—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings using parts which are fixed on the shoe of the user and are releasable from the ski binding

Definitions

  • the present invention relates to the field of ski equipment and more particularly ski touring. It relates more particularly to a rear binding element for ski touring.
  • Ski touring is a sport which consists of skiing more or less difficult alpine courses.
  • the skis are fitted with anti-recoil bands, called sealskins in reference to the systems used at the origin of the discipline.
  • the ski binding frees the heel of the boot, while the latter is articulated at the ankle to offer rotation of the ankle forwards and backwards.
  • the skis allow the use of alpine techniques and have metal edges. The skins are removed, the bindings make it possible to secure the front and back of the boot to the ski.
  • the shoes can be stiffened at the ankle joint, to allow support on the usual tongue.
  • the bindings offer possibilities of release in the event of constraint, in order to protect the skier.
  • the ski is no longer secured to the boot.
  • a link called a leash, or a brake system known as stop-skis, commonly used in skiing. alpine.
  • a leash simply allows the ski to be attached, elastically or not, to the boot.
  • the system is light and efficient. However, it must be detached and reattached for certain manipulations, such as putting back the skins or putting the skis on a backpack for a passage on foot. These operations are sometimes difficult to carry out, in particular with gloves, because the attachment systems are generally formed of a type buckle. carabiner, small.
  • the ski is no longer held by the leash, there are relatively high risks, in particular in the event of a fall, that the ski collides with the skier and injures him, in particular with the metal edges which are sharp.
  • the brake system of the stop-ski type is provided with at least one lever 30 rotatably mounted on a base 28, along an axis X, and a control plate mounted to pivot on the lever along an axis X2 parallel to the X axis.
  • the brake system is able to move between a so-called “descent" mode, in which the lever pivots between a triggered position and a triggered position.
  • a spring member tends to push the lever into the released position.
  • the lever In the trigger position, the lever is above the lower level of the ski board and has no braking effect. It is thus positioned under the action of a support, typically of a shoe, on the control plate, against the elastic member, when the shoe is engaged in the binding and in particular in the rear part of the boot.
  • the binding (called heel piece), to make a descent.
  • heel piece to make a descent.
  • the lever In the released position, there is no boot engaged in the binding, after a fall for example, and the lever is below the lower level of the ski board, under the action of the elastic member. The lever can then be anchored in the snow to brake the ski and prevent it from rolling down the slope.
  • the brake system must offer an additional mode, called “ascent”, in which the lever is held above the lower level of the ski board, without the heel of the boot is engaged in the rear part of the binding.
  • the rear part of the binding has a base 10 capable of being attached to the ski.
  • a stud 12 allowing the connection with the boot.
  • the stud 12 comprises two rods 14, movable perpendicularly to the longitudinal axis of the ski and parallel to the main plane of the ski. In descent mode, these rods 14 can come to take place in housings 16 that a metal part 18 comprises, inserted and fixed in the heel of the boot.
  • some light models intended for competition in particular include a movable cover 20, pivotally mounted on the stud 12 between a position in which it leaves free the engagement of the rods 14 in the housings 16 of the boot, and a position in which it forms a bearing surface for the boot, preventing the engagement of the rods 14 in said housings 16.
  • This type of binding comprises a single angular operating position along the z axis. In other words, if the stud 12 can pivot on the base 10 to allow a safety release, the stud 12 has only one angular position of normal operation, with reference to the base 10. In general, this type of fixing does not offer only one ascent position, in this case defined by the support offered by the cover 20.
  • the binding comprises a pedal, freely pivoting on a part formed by the brake lever.
  • This pedal can be manually raised to form a climbing block.
  • This system can only work with a brake locking system and it is necessary to position the pedal correctly, and manually, to make it a climbing block.
  • the object of the present invention is thus to propose a stop-ski system compatible with a ski-mountaineering binding heel piece, that is to say light and simple which, moreover, is simple and efficient to use, while limiting the number of operations to be performed.
  • the binding according to the invention can be characterized in that, in the ascent mode, the control plate is positioned substantially vertical.
  • the attachment system comprises rods intended to cooperate with the boot and, in the ascent mode, the control plate provides support for the heel of the boot situated above said rods.
  • said attachment system defines the stop member.
  • the lever defines the stop member, and in that the control plate comprises at least one projecting element capable of coming into abutment against the lever.
  • the lever comprises a central branch through which the elastic member connects said lever to the control plate.
  • control plate is rotatably mounted on the lever, on either side of the elastic member.
  • a locking hook integral with the base defines the stop member, and in that the control plate comprises a bar able to cooperate with said locking hook.
  • control plate comprises a flank distal of the plate relative to the X axis, and said distal flank forms a bearing surface for the boot, in the ascent mode.
  • said distal flank of the control plate is substantially parallel to the base when the control plate is in abutment against the stop member.
  • the base comprises an attached plate closing a housing provided in the base to receive the lever.
  • control plate in the ascent mode, the control plate is held in abutment against a stop member under the action of the elastic member, the control plate then being positioned so as to form a rise wedge and provide support to the heel of the shoe.
  • a rear binding for ski touring according to a first embodiment given by way of illustration of the invention.
  • This comprises a base 10 intended to be fixed to a ski board 22, as well as an attachment system arranged to cooperate with the heel of a ski boot.
  • This attachment system is preferably an attachment system of known type for ski mountaineering bindings. It comprises a stud 12 allowing the connection with the shoe.
  • the stud 12 comprises two rods 14, movable perpendicularly to the longitudinal axis of the ski and parallel to the main plane of the ski. When the boot is assembled on the binding, these rods 14 can take place in housings 16 which a metal part 18 comprises, inserted and fixed in the heel of the boot.
  • the rear binding comprises a movable cover 20, mounted to pivot on the stud 12 between a position in which it leaves free the engagement of the rods 14 in the housings 16 of the boot, and a position in which it forms a bearing surface for the shoe, preventing the engagement of the rods 14 in the housings 16.
  • the stud 12 of this type of binding comprises a single angular operating position, along the z axis. In other words, if the stud 12 can pivot on the base 10 to allow a safety release, the stud 12 has only one angular position of normal operation, with reference to the base 10. In general, this type of fixing does not offer only one ascent position, in this case defined by the support offered by the cover 20.
  • the rear binding is attached to said boot, and in a so-called “upward” mode, the rear binding is able to provide support to said boot, without a rigid connection.
  • the boot is then connected to the ski only by a pivoting system, located at the front of the boot, which it is unnecessary to describe in detail because it is well known and does not form part of the invention.
  • the binding also includes a brake system provided with at least one lever 30 rotatably mounted on a base 28, along an X axis, not sliding.
  • the brake system is also provided with a control plate 40 pivotally mounted on the lever 30 along an axis X2 parallel to the axis X, and connected by an elastic member 50 to the base 28, in the first embodiment. described.
  • the brake system is able to change between a so-called “descent” mode, which it occupies when the binding is also in descent mode, that is to say when the boot is engaged in the rear binding, and a so-called “climb” mode that it occupies when the binding is also in climb mode, that is to say when the boot is not engaged in the rear binding.
  • the lever 30 In the descent mode, the lever 30 is able to pivot between a triggered position and a triggered position.
  • the lever 30 In the trigger position, the lever 30 is above the lower level of the ski board 22 (that is to say above the level of the sole) under the action of a pressure on the plate control 40, against the action of the elastic member 50. Preferably, the lever 30 is even maintained above the upper level of the ski board 22. In this position, the levers 30 are not have almost no interaction with snow, and have no braking action. In the released position, the lever 30 is below the lower level of the ski board 22, under the action of the elastic member 50. In this position, the levers 30 can be anchored in the snow and brake the ski. Thus, in this mode of descent, the brake system operates in a manner similar to a conventional brake system, including of the type used in alpine skiing.
  • the lever 30 is positioned above the lower level of the ski board 22, preferably above the upper level of the ski board 22.
  • the brake system is arranged so that, in the ascent mode, the lever 30, preferably the levers, is held in position autonomously.
  • Autonomously means that the only components of the brake system, namely the lever 30, the control plate 40 and the elastic member 50, allow the brake system to be held in place when it is mounted on the ski. .
  • the brake system is arranged so as to automatically switch to descent mode, when the fastening system goes into descent mode by putting on a shoe. In other words, the engagement of a boot in the attachment system, which occurs when putting on the boot to start a descent, automatically causes the brake system to switch to descent mode.
  • the brake system comprises two levers 30 intended to take place on either side of the ski, thus allowing action in the snow that is symmetrical with respect to the ski.
  • the levers 30 are formed of a rod bent into two successive U's.
  • the rod forms a first U, the central branch 32 of which cooperates with the control plate 40 along the axis X2.
  • the control plate comprises a main body, of generally parallelepipedal shape, crossed by the central branch 32.
  • the lateral branches 34 of the first U extend in two setbacks 36, parallel to the central branch 32 and which form the central branch of the second U , the central part of which facing the central branch 32 is therefore absent.
  • These cuffs 36 cooperate with the base 28 along the X axis and are then extended by anchors 38 intended to sink into the snow in the released position.
  • the control plate At a first end, located on the side of the stud 12, the control plate has a cylindrical opening 41, oriented along the axis X2 and inside which is pivotally adjusted, the central branch 32 of the first U of the rod. At a second end, opposite the first, the control plate 40 is connected to the elastic member 50.
  • control plate 40 is pierced with a hole 42, oriented parallel to the X axis and to the X2 axis, to receive an elastic member 50, for example of the wire type, connected to the 'base 28, but other possibilities of spring and connection members with the control plate 40 are possible.
  • an elastic member 50 for example of the wire type
  • control plate 40 can pivot around the central branch of the lever 30, putting more or less the elastic member 50 in tension, as a function of the angular position of the hole 42 and therefore of its distance from the base. 28 and therefore at the point of attachment of the elastic member 50.
  • the two lower edges of the control plate 40 oriented substantially parallel to the axes X and X2 and located or intended to be located on the side of the ski board 22, are shaped in a particular way.
  • the control plate 40 comprises, on the side of the edge 43 and near the opening 41, a pair of fins 45, arranged on either side of the part of the plate through which the branch 32 passes. fins 45 are arranged to cooperate with the ends of the central branch 32, projecting on either side of the main body of the plate. As can be seen on the figure 2 , the fins 45 define a first stop, against which the levers come to bear, under the action of the elastic member 50, when the control plate 40 is in the ascent mode. In this position, the resultant of the forces exerted on the control plate by the elastic member 50 and the bearing forces between the fins 45 and the levers 30 is substantially zero. So when the plaque control 40 is oriented so as to bring the fins 45 into contact with the branch 32, a first stable position of the lever 30 is defined.
  • the edge 46 located on the side opposite the stud 12 has a substantially cylindrical surface, the main axis of which is oriented parallel to the X axis. This cylindrical surface is therefore able to roll (with or without sliding) on the ski board 22. , when the control plate 40 pivots on the central branch 32 of the rod.
  • the control plate 40 also comprises two projecting flanges 47, located near the opening 41 along the axis X2, on either side of this opening, that is to say opposite the fins 45, on the other side of the opening 41 with respect to the axis X2. As can be seen on the figure 1 , these edges 47 are located on the side of the ski board 22, when the control plate 40 is oriented in the position corresponding to the descent mode, triggered.
  • the flanges 47 are shaped to provide support to the side branches 34 of the first U of the levers 30 and to define a stop. In this position, the resultant of the forces exerted on the control plate by the elastic member 50 and the bearing forces between the flanges 47 and the levers 30 is substantially zero.
  • a second stable position of the lever 30 is defined.
  • the vector of the force exerted by the elastic member 50 on the control plate is located at a higher level relative to the axis X2 and tends to cause the control plate 40 to rotate around this axis X2, in a first direction, so that the control plate swings up.
  • the fixing system is then in a stable position, thanks to the cooperation between the fins 45 and the branch 32, the resultant of these forces being zero or substantially zero.
  • a support exerted on the control plate 40 in the direction of the ski board 22, typically a support exerted by a boot during the booting for the passage in descent mode, drives rotation of the control plate 40 ( fig. 3 ). At least initially, the control plate 40 will roll on the upper surface of the ski board 22. This rotation causes the vector of the force exerted by the elastic member 50 to pass to a lower level with respect to the 'axis X2 and tends to rotate the control plate 40 around this axis X2, in a second direction, opposite to the first, so that the control plate 40 pivots downward.
  • This passage of the vector of the elastic force, on the other side of the axis X2, causes the automatic passage of the fixing system in descent mode, described previously.
  • the position will be triggered or more logically triggered, if the boot engages in the binding.
  • the support of the boot on the control plate 40 prevents the elastic member from bringing the branches 34 into contact with the edges 47.
  • a release from the trigger position releases the brakes, up to the triggered position, in which the branches 34 are in contact with the edges 47 ( fig. 6 ).
  • the binding system can switch between the triggered position and the triggered position, like a traditional alpine ski binding.
  • the latter is manipulated directly. More particularly, the user rocks it to arm the elastic member 50 and make it pass the tilting position, in which the vector of the forces of the elastic member 50 is aligned with X2. Once this tilting position has been crossed, the forces exerted by the elastic member 50 return the control plate 40 to the stable up position, resting on the lever by the fins 45.
  • the passage to the ascent mode is effected by the one and only manipulation (in the literal sense of the term, that is to say by a manual action of the user) of the control plate 40, without actuation of any additional device, locking or otherwise.
  • This manipulation can be carried out in a succession of effective actions, during which the user lowers the cover 20 to begin a climb.
  • the change to the descent mode is automatic, by the sole support of the boot on the control plate, the support being inherent to the fitting of the ski boot on the binding. Without any additional specific action, the binding system automatically switches to descent mode when the boot is engaged.
  • the system must be dimensioned with reference to the height relative to the ski board, of the lower surface of the boot, when it is engaged on the binding, so that the boot induces a rotation of the control plate allowing to cross the tipping point.
  • the figures 7 to 13 show another embodiment, using kinematics similar for the control plate to that of the above embodiment, but characterized by another inventive aspect on the basis of the present application.
  • the lever has an additional central U with respect to the embodiment described mainly above.
  • This central U receives the elastic member 50 which thus connects the control plate and the lever.
  • it takes the form of a coil spring, but other types of springs can be used.
  • the arrangement of the elastic member of the first embodiment is also possible and another arrangement will be proposed below with reference to figures 15-17 .
  • control plate 40 On either side of the elastic member 50, the control plate 40 is rotatably mounted on the lever, along the axis X2.
  • the branches of the lever arranged along X2 can be in the continuity of the central branch of the central U or form first cuffs 37, arranged parallel to X2.
  • the levers extend into two cuffs 36, parallel to the central branch 32. These cuffs 36 cooperate with the base 28 along the X axis and are then extended by anchors 38 intended to sink into the snow in triggered position.
  • control plate 40 comprises two legs 60 defining the side edges of the plate.
  • the ends of the legs are open in a fork, each of which defines the opening 41 for the passage of the levers along the axis X2.
  • the tension exerted by the elastic member ensures that the levers remain in place in the forks.
  • the control plate comprises a through opening in its middle part, parallel to the legs 60 and located between them, in which the elastic member 50 is seated.
  • the latter connected at a first of its ends to the lever 30, can be fixed by its other end, by any known means, to the control plate.
  • the elastic member is arranged so as to exert a force perpendicular to the axis of rotation X2, in order to limit the forces which would tend to put the control plate 40 at an angle.
  • the control plate 40 may also include recesses 49, substantially in the axis of the legs 60. As will be understood below, the recesses 49 are located in zones intended to be in the vicinity of the rods 14 when the rear binding is in the ascent position.
  • the base 28 comprises an attached plate 29 which closes a housing formed to receive the levers and allow them to pivot along the X axis, while simplifying their assembly.
  • the plate 29 can be fixed on the base 10.
  • the base 10 and the base 28 could be formed in one piece.
  • the rear stud does not include a cover for producing the climbing wedge.
  • the control plate 40 is able, in the ascent mode, to come into abutment against a stop member under the action of the elastic member 50, by providing support to the boot. , particularly at its heel, to form said climbing wedge.
  • the control plate covers the rods 14 and provides a support located at a level above said rods.
  • the support provided by the control plate can be located just under the stems, or in front of them, as proposed in the embodiment of the figure 14 which will be described later.
  • the stop member is formed by the stud 12 or the rods 14.
  • control plate 40 serves as a lifting wedge.
  • the rods 14 can be housed in the recesses 49, the shape of which is adapted for this purpose.
  • the shape of the hollows can be advantageously adjusted so that the rods participate in the lateral support of the control plate.
  • the resilient member keeps the control plate resting against the rods.
  • the rods also provide a support for the control plate 40, when the user leans on it, during his stride.
  • One can also provide a notch engagement to bring an additional locking, obtained by the cooperation of a rib in the recesses and a groove made on one or the rod (s).
  • flank distal of the plate relative to the X axis that is to say on the side of the edge 46, forms a bearing surface for the boot in the ascent position.
  • This distal flank is substantially horizontal, that is to say parallel to the ski board, when the control plate 40 is in abutment against the stud / respectively the rods.
  • control plate 40 which can be actuated manually to pivot and take place on the surface defined by the distal flank, to form a second height of heel lift.
  • control plate 40 is raised, resting on the rods 14 and its distal flank forms a support for the boot and thus serves as a climbing wedge.
  • the control plate is in a substantially vertical position in this mode.
  • FIG. 9 The continuation of figures 9 to 12 illustrates the sequence and kinematics of the passage of the rear binding from ascent mode to descent mode, in this case in the released position on the figure 12 , since the shoe is not engaged in the binding.
  • the actuation described here is carried out manually by the user. The latter lowers the distal end of the control plate 40 towards the ski board. By bringing the plate in contact with the ski ( fig. 10 ), it passes the elastic member 50 to the other side of the tipping point. Compared to the ascent mode, the elastic member this time drives the control plate 40 in the other direction of rotation ( fig. 11 ).
  • the levers 30 are driven below the lower level of the ski board, until the branches 36, or where appropriate another part of the control plate, comes into abutment against the stems ( fig. 12 or fig. 7 ).
  • the control plate 40 is also pressed against the ski board.
  • the stop member is formed by the lever 30.
  • the control plate 40 comprises at least one, preferably two, projecting element, for example two fingers 70, arranged on either side of the control plate. Overmolded structures with the control plate may also be suitable.
  • the projecting elements are arranged so as to be able to cooperate with the branches 34, like the fins 45.
  • the stop ski system is independent of the stud and of the attachment system.
  • a torsion spring device can be provided between the base and the lever to keep the control plate 40 in contact with the ski, by the ends of the legs 60.
  • the control plate comprises a bar 80 connecting the two legs 60. This bar is able to cooperate with a locking hook 82, integral with the base by extending projecting, in an essentially vertical direction. The hook acts as a stop member to hold the control plate in position.
  • the elastic member 50 is here formed by at least one, preferably two, torsion spring (s), interposed between the base and the lever and exerting a force tending to bring the lever into the triggered descent mode. If the control plate 40 is free to rotate on the lever 30, the elastic member 50 can, as will be understood below, exert an indirect action on the control plate, to keep it in the ascent mode.
  • the control plate 40 has two edges, similar to those of the first embodiment, also referenced 47, for reasons of clarity.
  • the ski stop system is also independent of the stud and of the attachment system.
  • the dimension between the housings 16 and the lower surface of the heel of the shoe can vary between different models of shoe. However, this dimension is important so that the boot, in descent mode, presses on the control plate to keep the levers 30 above the lower level of the ski board. If the distance between the housings 16 and the lower surface of the heel of the boot is insufficient, the levers may be insufficiently raised, and have a braking action, which is not desired in the engaged descent mode, when the boot is engaged in the binding.
  • a wedge or a set of wedges 200 removable and interchangeable, which can be fixed on the control plate 40, to adapt the thickness of the latter, and particularly to adapt it to the distance between the housings 16 and the lower surface of the heel of the shoe.
  • Other fixing methods, in particular by clipping, can be envisaged. Shims of different thicknesses can be used to adjust the position of the levers, while the descent mode is engaged.
  • the passage of the lever 30 in the base can also be adjusted by spacers 202, making it possible to adjust the position of the axis of rotation X relative to the lower surface of the ski board.
  • the spacer 202 is located above the lever 30, which is therefore at its lower level, in a groove 204 formed in the base 28.
  • the attached plate 29 maintains the lever 30 and the spacer 202.
  • the spacer 202 could also be located at the bottom of the groove 204, to move the X axis away from the lower level of the ski board.
  • the present invention provides a rear binding for ski touring, intended for sporting and / or competitive practice, in which the ski stop system itself forms a climbing wedge.
  • the ski stop system itself forms a climbing wedge.
  • a system for adjusting the tension of the elastic member may be provided.

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

Abstract

La présente invention concerne une fixation arrière pour ski de randonnée, comprenant un système d'attache, un système de frein doté d'au moins un levier (30) et d'une plaque de commande (40) montée pivotante sur le levier (30) et un organe élastique (50) agencé pour coopérer avec le système de frein.The present invention relates to a rear binding for ski touring, comprising an attachment system, a brake system provided with at least one lever (30) and a control plate (40) pivotally mounted on the lever (30 ) and an elastic member (50) arranged to cooperate with the brake system.

Dans un mode de montée, la plaque de commande (40) est maintenue en butée contre un organe de butée sous l'action de l'organe élastique, la plaque de commande étant alors positionnée de manière à former une cale de montée et fournir un appui au talon d'une chaussure, empêchant la chaussure d'être fixée au système d'attache.

Figure imgaf001
In an ascent mode, the control plate (40) is held in abutment against a stop member under the action of the resilient member, the control plate then being positioned so as to form a rise wedge and provide a support on the heel of a shoe, preventing the shoe from being attached to the attachment system.
Figure imgaf001

Description

Domaine techniqueTechnical area

La présente invention se rapporte au domaine de l'équipement de ski et plus particulièrement du ski de randonnée. Elle concerne, plus particulièrement, un élément de fixation arrière, pour ski de randonnée.The present invention relates to the field of ski equipment and more particularly ski touring. It relates more particularly to a rear binding element for ski touring.

Etat de la techniqueState of the art

Le ski de randonnée est une discipline sportive qui consiste à effectuer à ski des parcours alpins plus ou moins difficiles. Pour les parties en montée, les skis sont équipés de bandes anti-recul, appelées peaux de phoque en référence aux systèmes utilisés à l'origine de la discipline. Pour permettre la marche avec les skis aux pieds, la fixation du ski permet de libérer le talon de la chaussure, tandis que celle-ci est articulée au niveau de la cheville pour offrir une rotation de la cheville en avant et en arrière. Pour les descentes, les skis permettent d'utiliser les techniques alpines et présentent des carres métalliques. Les peaux sont retirées, les fixations permettent de solidariser l'avant et l'arrière de la chaussure sur le ski. Les chaussures peuvent être rigidifiées au niveau de l'articulation de la cheville, pour permettre un appui sur la languette habituel.Ski touring is a sport which consists of skiing more or less difficult alpine courses. For the uphill sections, the skis are fitted with anti-recoil bands, called sealskins in reference to the systems used at the origin of the discipline. To allow walking with the skis on the feet, the ski binding frees the heel of the boot, while the latter is articulated at the ankle to offer rotation of the ankle forwards and backwards. For the descents, the skis allow the use of alpine techniques and have metal edges. The skins are removed, the bindings make it possible to secure the front and back of the boot to the ski. The shoes can be stiffened at the ankle joint, to allow support on the usual tongue.

En matière de sécurité, les fixations offrent des possibilités de déclenchement en cas de contrainte, afin de protéger le skieur. Ainsi, en cas de déchaussage, le ski n'est plus solidarisé à la chaussure. Afin d'éviter de perdre le ski qui pourrait alors disparaitre sous la neige ou continuer à dévaler la pente, on utilise soit un lien appelé leash, soit un système de frein connu sous le nom de stop-skis, utilisés de manière courante en ski alpin.In terms of safety, the bindings offer possibilities of release in the event of constraint, in order to protect the skier. Thus, in the event of taking off, the ski is no longer secured to the boot. In order to avoid losing the ski which could then disappear under the snow or continue to descend the slope, we use either a link called a leash, or a brake system known as stop-skis, commonly used in skiing. alpine.

Un leash permet simplement d'attacher, élastiquement ou non, le ski à la chaussure. Le système est léger et efficace. Cependant, il doit être détaché et rattaché pour certaines manipulations, comme pour remettre les peaux ou pour mettre les skis sur un sac à dos pour un passage à pieds. Ces opérations sont parfois malaisées à réaliser, notamment avec des gants, car les systèmes d'attache sont généralement formés d'une boucle de type mousqueton, de petites dimensions. De plus, lorsque le ski n'est plus tenu que par le leash, il existe des risques relativement importants, notamment en cas de chute, que le ski vienne heurter le skieur et le blesse, notamment avec les carres métalliques qui sont coupantes.A leash simply allows the ski to be attached, elastically or not, to the boot. The system is light and efficient. However, it must be detached and reattached for certain manipulations, such as putting back the skins or putting the skis on a backpack for a passage on foot. These operations are sometimes difficult to carry out, in particular with gloves, because the attachment systems are generally formed of a type buckle. carabiner, small. In addition, when the ski is no longer held by the leash, there are relatively high risks, in particular in the event of a fall, that the ski collides with the skier and injures him, in particular with the metal edges which are sharp.

Le système de frein de type stop-ski, est doté d'au moins un levier 30 monté à rotation sur une embase 28, selon un axe X, et d'une plaque de commande montée pivotante sur le levier selon un axe X2 parallèle à l'axe X. Le système de frein est apte à évoluer entre un mode dit "de descente", dans lequel le levier pivote entre une position de déclenchement et une position déclenchée. Un organe ressort tend à pousser le levier en position déclenchée. En position de déclenchement, le levier est au-dessus du niveau inférieur de la planche de ski et n'a pas d'effet de freinage. Il est positionné ainsi sous l'action d'un appui, typiquement d'une chaussure, sur la plaque de commande, à l'encontre de l'organe élastique, lorsque la chaussure est engagée dans la fixation et notamment dans la partie arrière de la fixation (appelée talonnière), pour effectuer une descente. En position déclenchée, il n'y a pas de chaussure engagée dans la fixation, après une chute par exemple, et le levier est au-dessous du niveau inférieur de la planche de ski, sous l'action de l'organe élastique. Le levier peut alors s'ancrer dans la neige pour freiner le ski et l'empêcher de dévaler la pente.The brake system of the stop-ski type is provided with at least one lever 30 rotatably mounted on a base 28, along an axis X, and a control plate mounted to pivot on the lever along an axis X2 parallel to the X axis. The brake system is able to move between a so-called "descent" mode, in which the lever pivots between a triggered position and a triggered position. A spring member tends to push the lever into the released position. In the trigger position, the lever is above the lower level of the ski board and has no braking effect. It is thus positioned under the action of a support, typically of a shoe, on the control plate, against the elastic member, when the shoe is engaged in the binding and in particular in the rear part of the boot. the binding (called heel piece), to make a descent. In the released position, there is no boot engaged in the binding, after a fall for example, and the lever is below the lower level of the ski board, under the action of the elastic member. The lever can then be anchored in the snow to brake the ski and prevent it from rolling down the slope.

Pour une utilisation en ski de randonnée, on comprend que le système de frein doit offrir un mode supplémentaire, dit « de montée », dans lequel le levier est maintenu au-dessus du niveau inférieur de la planche de ski, sans que le talon de la chaussure soit engagé dans la partie arrière de la fixation.For use in ski touring, it is understood that the brake system must offer an additional mode, called “ascent”, in which the lever is held above the lower level of the ski board, without the heel of the boot is engaged in the rear part of the binding.

C'est notamment le cas avec l'un des standards de fixation principalement utilisés, dit "Low tech", qui présente une fixation en deux parties indépendantes, l'une pour l'avant de la chaussure et l'autre pour l'arrière. La partie arrière de la fixation présente un socle 10 apte à être fixée sur le ski. Sur ce socle 10 est monté un plot 12 permettant la liaison avec la chaussure. De manière usuelle, le plot 12 comprend deux tiges 14, déplaçables perpendiculairement à l'axe longitudinal du ski et parallèlement au plan principal du ski. En mode de descente, ces tiges 14 peuvent venir prendre place dans des logements 16 que comporte une pièce métallique 18, insérée et fixée dans le talon de la chaussure.This is particularly the case with one of the binding standards mainly used, called "Low tech", which has a binding in two independent parts, one for the front of the boot and the other for the rear. . The rear part of the binding has a base 10 capable of being attached to the ski. On this base 10 is mounted a stud 12 allowing the connection with the boot. Usually, the stud 12 comprises two rods 14, movable perpendicularly to the longitudinal axis of the ski and parallel to the main plane of the ski. In descent mode, these rods 14 can come to take place in housings 16 that a metal part 18 comprises, inserted and fixed in the heel of the boot.

Pour les parties de montée, certains modèles légers destinés à la compétition notamment, comprennent un capot 20 mobile, monté pivotant sur le plot 12 entre une position dans laquelle il laisse libre l'engagement des tiges 14 dans les logements 16 de la chaussure, et une position dans laquelle il forme une surface d'appui pour la chaussure, empêchant l'engagement des tiges 14 dans lesdits logements 16. Ce type de fixation comprend une seule position angulaire de fonctionnement selon l'axe z. Autrement dit, si le plot 12 peut pivoter sur le socle 10 pour permettre un déchaussage de sécurité, le plot 12 ne comporte qu'une position angulaire de fonctionnement normal, en référence au socle 10. En général, ce type de fixation n'offre qu'une seule position de montée, en l'espèce définie par l'appui offert par le capot 20.For the uphill parts, some light models intended for competition in particular, include a movable cover 20, pivotally mounted on the stud 12 between a position in which it leaves free the engagement of the rods 14 in the housings 16 of the boot, and a position in which it forms a bearing surface for the boot, preventing the engagement of the rods 14 in said housings 16. This type of binding comprises a single angular operating position along the z axis. In other words, if the stud 12 can pivot on the base 10 to allow a safety release, the stud 12 has only one angular position of normal operation, with reference to the base 10. In general, this type of fixing does not offer only one ascent position, in this case defined by the support offered by the cover 20.

On connait dans l'état de la technique, différentes solutions de stop-skis adaptés pour le ski de randonnée, dans lesquels on prévoit un système de blocage actionnable manuellement, apte à coopérer avec les leviers pour les maintenir dans un mode de montée. Cependant, ces systèmes de blocage ne sont pas très aisés à manipuler, et peuvent se coincer avec la neige qui gèle. Leur conception est complexe, car ils ne doivent pas entraver le passage des leviers dans leur mode de déclenchement ou déclenché, pour les phases de descente. Le blocage peut être effectué par exemple par rotation de la talonnière, ou par translation d'une glissière verrouillable. Si ces solutions sont utilisables pour des fixations de loisir ou de randonnée sportive, elles sont mal adaptées pour des fixations légères, utilisées en compétition, comportant une talonnière dotée d'un capot 20 telle que mentionnée ci-dessus.Various solutions of stop-skis suitable for ski touring are known in the state of the art, in which a manually operable locking system is provided, able to cooperate with the levers to keep them in a climbing mode. However, these blocking systems are not very easy to handle, and can get stuck with freezing snow. Their design is complex, because they must not hinder the passage of the levers in their triggered or triggered mode, for the descent phases. The blocking can be carried out for example by rotation of the heel piece, or by translation of a lockable slideway. While these solutions can be used for leisure or sport touring bindings, they are ill-suited for light bindings, used in competition, comprising a heel piece provided with a cover 20 as mentioned above.

On connait par exemple le document FR2999091 qui propose un système dans lequel le système de stop-ski peut être bloqué par un système de blocage, pour maintenir les freins en position relevée lors des phases de montée. La fixation comprend une pédale, pivotant librement sur une partie formée par le levier de frein. Cette pédale peut être relevée manuellement pour former une cale de montée. Ce système ne peut fonctionner qu'avec un système de blocage des freins et il convient de positionner correctement, et manuellement, la pédale pour en faire une cale de montée.For example, we know the document FR2999091 which proposes a system in which the stop-ski system can be blocked by a locking system, to keep the brakes in the raised position during the ascent phases. The binding comprises a pedal, freely pivoting on a part formed by the brake lever. This pedal can be manually raised to form a climbing block. This system can only work with a brake locking system and it is necessary to position the pedal correctly, and manually, to make it a climbing block.

La simplicité et la légèreté des talonnières des fixations de compétition, ne permettent que difficilement de combiner des stop-skis sans une profonde modification.The simplicity and lightness of the heels of competition bindings make it difficult to combine ski stops without a major modification.

La présente invention a ainsi pour but de proposer un système de stop-skis compatible avec une talonnière de fixation de ski-alpinisme, c'est-à-dire léger et simple qui, de surcroit, soit simple et efficace à utiliser, en limitant le nombre de manipulations à effectuer.The object of the present invention is thus to propose a stop-ski system compatible with a ski-mountaineering binding heel piece, that is to say light and simple which, moreover, is simple and efficient to use, while limiting the number of operations to be performed.

Divulguation de l'inventionDisclosure of the invention

De façon plus précise, l'invention concerne une fixation arrière pour ski de randonnée, comprenant :

  • un système d'attache destiné à être fixée à une planche de ski, et agencé pour coopérer avec le talon d'une chaussure de ski, pour être fixé à ladite chaussure dans un mode de fonctionnement dit "de descente", et pour fournir un appui à ladite chaussure, sans liaison rigide, dans un mode de fonctionnement dit "de montée",
  • une embase destinée à être fixée à une planche de ski,
  • un système de frein doté d'au moins un levier monté à rotation sur l'embase, selon un axe X, et d'une plaque de commande montée pivotante sur le levier selon un axe X2 parallèle à l'axe X, et
  • un organe élastique agencé pour coopérer avec le système de frein.
More specifically, the invention relates to a rear binding for ski touring, comprising:
  • an attachment system intended to be attached to a ski board, and arranged to cooperate with the heel of a ski boot, to be attached to said boot in a so-called "descent" mode of operation, and to provide a support on said shoe, without rigid connection, in a so-called "climbing" mode of operation,
  • a base intended to be fixed to a ski board,
  • a brake system provided with at least one lever rotatably mounted on the base, along an X axis, and a control plate mounted to pivot on the lever along an X2 axis parallel to the X axis, and
  • an elastic member arranged to cooperate with the brake system.

Le système de frein est apte à évoluer entre :

  • un mode dit "de descente" lorsque le système d'attache est en mode de descente, dans lequel le levier pivote entre une position de déclenchement, dans laquelle il est apte à être maintenu au-dessus du niveau inférieur de la planche de ski par un appui sur la plaque de commande à l'encontre de l'action de l'organe élastique, et une position déclenchée, dans laquelle il est maintenu au-dessous du niveau inférieur de la planche de ski sous l'action de l'organe élastique, et
  • un mode dit "de montée" dans lequel le levier est positionné au-dessus du niveau inférieur de la planche de ski, lorsque le système d'attache est en mode de montée,
caractérisée en ce que, dans le mode de montée, la plaque de commande est maintenue en butée contre un organe de butée sous l'action de l'organe élastique, la plaque de commande étant alors positionnée de manière à former une cale de montée et fournir un appui au talon de la chaussure, empêchant une chaussure d'être fixée au système d'attache.The brake system is able to evolve between:
  • a so-called "descent" mode when the attachment system is in descent mode, in which the lever pivots between a release position, in which it is able to be held above the lower level of the ski board by a support on the control plate against the action of the elastic member, and a triggered position, in which it is held below the lower level of the ski board under the action of the member elastic, and
  • a so-called "climb" mode in which the lever is positioned above the lower level of the ski board, when the attachment system is in climb mode,
characterized in that, in the ascent mode, the control plate is held in abutment against a stop member under the action of the elastic member, the control plate then being positioned so as to form a rise wedge and providing support to the heel of the shoe, preventing a shoe from being attached to the fastening system.

La fixation selon l'invention peut être caractérisée en ce que, dans le mode de montée, la plaque de commande est positionnée de manière sensiblement verticale.The binding according to the invention can be characterized in that, in the ascent mode, the control plate is positioned substantially vertical.

De manière avantageuse, le système d'attache comprend des tiges destinées à coopérer avec la chaussure et, dans le mode de montée, la plaque de commande fournit un appui au talon de la chaussure situé au-dessus desdites tiges.Advantageously, the attachment system comprises rods intended to cooperate with the boot and, in the ascent mode, the control plate provides support for the heel of the boot situated above said rods.

De manière avantageuse, ledit système d'attache définit l'organe de butée.Advantageously, said attachment system defines the stop member.

De manière avantageuse, le levier définit l'organe de butée, et en ce que la plaque de commande comprend au moins un élément en saillie apte à venir en butée contre le levier.Advantageously, the lever defines the stop member, and in that the control plate comprises at least one projecting element capable of coming into abutment against the lever.

De manière avantageuse, le levier comporte une branche centrale par lequel l'organe élastique relie ledit levier à la plaque de commande.Advantageously, the lever comprises a central branch through which the elastic member connects said lever to the control plate.

De manière avantageuse, la plaque de commande est montée à rotation sur le levier, de part et d'autre de l'organe élastique.Advantageously, the control plate is rotatably mounted on the lever, on either side of the elastic member.

De manière avantageuse, un crochet de verrouillage solidaire de l'embase, définit l'organe de butée, et en ce que la plaque de commande comprend une barrette apte à coopérer avec ledit crochet de verrouillage.Advantageously, a locking hook integral with the base, defines the stop member, and in that the control plate comprises a bar able to cooperate with said locking hook.

De manière avantageuse, la plaque de commande comprend un flanc distal de la plaque par rapport à l'axe X, et ledit flanc distal forme une surface d'appui pour la chaussure, dans le mode de montée.Advantageously, the control plate comprises a flank distal of the plate relative to the X axis, and said distal flank forms a bearing surface for the boot, in the ascent mode.

De manière avantageuse, ledit flanc distal de la plaque de commande est sensiblement parallèle à l'embase lorsque la plaque de commande est en butée contre l'organe de butée.Advantageously, said distal flank of the control plate is substantially parallel to the base when the control plate is in abutment against the stop member.

De manière avantageuse, l'embase comporte une plaque rapportée fermant un logement ménagé dans l'embase pour recevoir le levier.Advantageously, the base comprises an attached plate closing a housing provided in the base to receive the lever.

L'invention concerne également un système de frein pour ski doté

  • d'au moins un levier monté à rotation selon un axe X sur une embase, apte à être montée sur une planche de ski, et
  • d'une plaque de commande montée pivotante sur le levier selon un axe X2 parallèle à l'axe X, et
  • d'un organe élastique agencé pour coopérer avec le levier.
The invention also relates to a ski brake system provided with
  • at least one lever rotatably mounted about an X axis on a base, suitable for being mounted on a ski board, and
  • a control plate pivotally mounted on the lever along an axis X2 parallel to the axis X, and
  • of an elastic member arranged to cooperate with the lever.

Le système de frein est apte à évoluer entre :

  • un mode dit "de descente" dans lequel le levier pivote entre une position de déclenchement, dans laquelle il est apte à être maintenu au-dessus du niveau inférieur de la planche de ski par un appui sur la plaque de commande à l'encontre de l'action de l'organe élastique, et une position déclenchée, dans laquelle il est maintenu au-dessous du niveau inférieur de la planche de ski sous l'action de l'organe élastique, et
  • un mode dit "de montée" dans lequel le levier est positionné au-dessus du niveau inférieur de la planche de ski.
The brake system is able to evolve between:
  • a so-called "descent" mode in which the lever pivots between a release position, in which it is able to be maintained above the lower level of the ski board by pressing the control plate against the action of the elastic member, and a triggered position, in which it is held below the lower level of the ski board under the action of the elastic member, and
  • a so-called "climb" mode in which the lever is positioned above the lower level of the ski board.

Selon l'invention, dans le mode de montée, la plaque de commande est maintenue en butée contre un organe de butée sous l'action de l'organe élastique, la plaque de commande étant alors positionnée de manière à former une cale de montée et fournir un appui au talon de la chaussure.According to the invention, in the ascent mode, the control plate is held in abutment against a stop member under the action of the elastic member, the control plate then being positioned so as to form a rise wedge and provide support to the heel of the shoe.

Brève description des dessinsBrief description of the drawings

D'autres détails de l'invention apparaîtront plus clairement à la lecture de la description qui suit, faite en référence au dessin annexé dans lequel :

  • la figure 1 est une vue en perspective d'une fixation arrière selon un premier mode de réalisation décrit à titre d'illustration, en mode de descente et en position déclenchée, lorsqu'aucune chaussure n'est fixée sur la fixation,
  • la figure 2 est une vue de côté de la fixation arrière selon ce premier mode de réalisation, en mode de montée,
  • les figures 3 et 4 sont des vues de côté de la fixation arrière selon le premier mode de réalisation, lors du passage du mode de montée au mode de descente, en position de déclenchement, par l'engagement d'une chaussure,
  • les figues 5 et 6 représentent une suite chronologique de vues de côté de la fixation arrière du premier mode de réalisation, lors du passage du mode descente en position de déclenchement à la position déclenchée, par le désengagement d'une chaussure,
  • les figures 7 et 8 sont des vues en perspective et en coupe d'un autre mode de réalisation faisant l'objet plus spécifiquement de la présente demande de brevet,
  • les figures 9 à 12 représentent une suite chronologique de vues en coupe de la fixation arrière selon l'invention, lors du passage du mode de montée au mode de descente, en position déclenchée,
  • la figure 13 est une vue en coupe de cette fixation arrière en mode de descente, en position de déclenchement,
  • la figure 14 est une vue en perspective d'un mode de réalisation supplémentaire,
  • les figures 15, 16 et 17 représentent un autre mode de réalisation supplémentaire, en vue de côté sur la figure 15 et en coupe partielle pour les figures 16 et 17, et
  • la figure 18 représente une variante de la présente invention.
Other details of the invention will emerge more clearly on reading the description which follows, given with reference to the appended drawing in which:
  • the figure 1 is a perspective view of a rear binding according to a first embodiment described by way of illustration, in descent mode and in the released position, when no shoe is attached to the binding,
  • the figure 2 is a side view of the rear binding according to this first embodiment, in ascent mode,
  • the figures 3 and 4 are side views of the rear binding according to the first embodiment, during the passage from the ascent mode to the descent mode, in the release position, by the engagement of a shoe,
  • FIGS. 5 and 6 represent a chronological series of side views of the rear binding of the first embodiment, during the change from descent mode in the triggered position to the triggered position, by disengaging a shoe,
  • the figures 7 and 8 are perspective and sectional views of another embodiment which is the subject more specifically of the present patent application,
  • the figures 9 to 12 represent a chronological series of cross-sectional views of the rear binding according to the invention, during the passage from the ascent mode to the descent mode, in the released position,
  • the figure 13 is a sectional view of this rear binding in descent mode, in the release position,
  • the figure 14 is a perspective view of a further embodiment,
  • the figures 15, 16 and 17 show another additional embodiment, in side view on the figure 15 and in partial section for figures 16 and 17 , and
  • the figure 18 represents a variant of the present invention.

Mode de réalisation de l'inventionEmbodiment of the invention

On a représenté sur les figures 1 à 6, une fixation arrière pour ski de randonnée selon un premier mode de réalisation donné à titre d'illustration de l'invention. Celle-ci comprend un socle 10 destiné à être fixé à une planche de ski 22, ainsi qu'un système d'attache agencé pour coopérer avec le talon d'une chaussure de ski. Ce système d'attache est, de préférence, un système d'attache de type connu pour des fixations de ski alpinisme. Il comprend un plot 12 permettant la liaison avec la chaussure. De manière usuelle, le plot 12 comprend deux tiges 14, déplaçables perpendiculairement à l'axe longitudinal du ski et parallèlement au plan principal du ski. Lorsque la chaussure est assemblée sur la fixation, ces tiges 14 peuvent venir prendre place dans des logements 16 que comporte une pièce métallique 18, insérée et fixée dans le talon de la chaussure.We have represented on the figures 1 to 6 , a rear binding for ski touring according to a first embodiment given by way of illustration of the invention. This comprises a base 10 intended to be fixed to a ski board 22, as well as an attachment system arranged to cooperate with the heel of a ski boot. This attachment system is preferably an attachment system of known type for ski mountaineering bindings. It comprises a stud 12 allowing the connection with the shoe. Usually, the stud 12 comprises two rods 14, movable perpendicularly to the longitudinal axis of the ski and parallel to the main plane of the ski. When the boot is assembled on the binding, these rods 14 can take place in housings 16 which a metal part 18 comprises, inserted and fixed in the heel of the boot.

Pour les parties de montée, la fixation arrière comprend un capot 20 mobile, monté pivotant sur le plot 12 entre une position dans laquelle il laisse libre l'engagement des tiges 14 dans les logements 16 de la chaussure, et une position dans laquelle il forme une surface d'appui pour la chaussure, empêchant l'engagement des tiges 14 dans les logements 16. Comme mentionné précédemment, le plot 12 de ce type de fixation comprend une seule position angulaire de fonctionnement, selon l'axe z. Autrement dit, si le plot 12 peut pivoter sur le socle 10 pour permettre un déchaussage de sécurité, le plot 12 ne comporte qu'une position angulaire de fonctionnement normal, en référence au socle 10. En général, ce type de fixation n'offre qu'une seule position de montée, en l'espèce définie par l'appui offert par le capot 20.For the uphill parts, the rear binding comprises a movable cover 20, mounted to pivot on the stud 12 between a position in which it leaves free the engagement of the rods 14 in the housings 16 of the boot, and a position in which it forms a bearing surface for the shoe, preventing the engagement of the rods 14 in the housings 16. As mentioned above, the stud 12 of this type of binding comprises a single angular operating position, along the z axis. In other words, if the stud 12 can pivot on the base 10 to allow a safety release, the stud 12 has only one angular position of normal operation, with reference to the base 10. In general, this type of fixing does not offer only one ascent position, in this case defined by the support offered by the cover 20.

Ainsi, dans un mode de fonctionnement dit "de descente", la fixation arrière est fixée à ladite chaussure, et dans un mode dit "de montée", la fixation arrière est apte à fournir un appui à ladite chaussure, sans liaison rigide. La chaussure n'est alors reliée au ski que par un système de pivotement, situé à l'avant de la chaussure, qu'il est inutile de décrire en détails car étant bien connu et ne faisant pas partie de l'invention.Thus, in a so-called “downhill” mode of operation, the rear binding is attached to said boot, and in a so-called “upward” mode, the rear binding is able to provide support to said boot, without a rigid connection. The boot is then connected to the ski only by a pivoting system, located at the front of the boot, which it is unnecessary to describe in detail because it is well known and does not form part of the invention.

La fixation comporte également un système de frein doté d'au moins un levier 30 monté à rotation sur une embase 28, selon un axe X, non coulissant. Le système de frein est également doté d'une plaque de commande 40 montée pivotante sur le levier 30 selon un axe X2 parallèle à l'axe X, et reliée par un organe élastique 50 à l'embase 28, dans le premier mode de réalisation décrit.The binding also includes a brake system provided with at least one lever 30 rotatably mounted on a base 28, along an X axis, not sliding. The brake system is also provided with a control plate 40 pivotally mounted on the lever 30 along an axis X2 parallel to the axis X, and connected by an elastic member 50 to the base 28, in the first embodiment. described.

Le système de frein est apte à évoluer entre un mode dit "de descente", qu'il occupe lorsque la fixation est également en mode de descente, c'est-à-dire quand la chaussure est engagée dans la fixation arrière, et un mode dit "de montée" qu'il occupe lorsque la fixation est également en mode de montée, c'est-à-dire quand la chaussure n'est pas engagée dans la fixation arrière. Dans le mode de descente, le levier 30 est apte à pivoter entre une position de déclenchement et une position déclenchée.The brake system is able to change between a so-called "descent" mode, which it occupies when the binding is also in descent mode, that is to say when the boot is engaged in the rear binding, and a so-called "climb" mode that it occupies when the binding is also in climb mode, that is to say when the boot is not engaged in the rear binding. In the descent mode, the lever 30 is able to pivot between a triggered position and a triggered position.

Dans la position de déclenchement, le levier 30 est au-dessus du niveau inférieur de la planche de ski 22 (c'est-à-dire au-dessus du niveau de la semelle) sous l'action d'un appui sur la plaque de commande 40, à l'encontre de l'action de l'organe élastique 50. De préférence, le levier 30 est même maintenu au-dessus du niveau supérieur de la planche de ski 22. Dans cette position, les leviers 30 n'ont quasiment pas d'interaction avec la neige, et n'ont pas d'action de frein. Dans la position déclenchée, le levier 30 est au-dessous du niveau inférieur de la planche de ski 22, sous l'action de l'organe élastique 50. Dans cette position, les leviers 30 peuvent s'ancrer dans la neige et freiner le ski. Ainsi, dans ce mode de descente, le système de frein fonctionne de manière similaire à un système de frein conventionnel, y-compris du type utilisé en ski alpin.In the trigger position, the lever 30 is above the lower level of the ski board 22 (that is to say above the level of the sole) under the action of a pressure on the plate control 40, against the action of the elastic member 50. Preferably, the lever 30 is even maintained above the upper level of the ski board 22. In this position, the levers 30 are not have almost no interaction with snow, and have no braking action. In the released position, the lever 30 is below the lower level of the ski board 22, under the action of the elastic member 50. In this position, the levers 30 can be anchored in the snow and brake the ski. Thus, in this mode of descent, the brake system operates in a manner similar to a conventional brake system, including of the type used in alpine skiing.

Dans le mode de montée, le levier 30 est positionné au-dessus du niveau inférieur de la planche de ski 22, de préférence au-dessus du niveau supérieur de la planche de ski 22.In the climb mode, the lever 30 is positioned above the lower level of the ski board 22, preferably above the upper level of the ski board 22.

Dans ce mode de réalisation, le système de frein est agencé de manière à ce que, dans le mode de montée, le levier 30, de préférence les leviers, est maintenu en position de manière autonome. De manière autonome, signifie que les seuls éléments constitutifs du système de frein, à savoir le levier 30, la plaque de commande 40 et l'organe élastique 50, permettent la tenue en place du système de frein lorsqu'il est monté sur le ski. A la différence des systèmes connus de l'état de la technique, il n'y a donc pas de système de verrouillage distinct à actionner, pour maintenir le système de frein dans le mode de montée. De plus, le système de frein est agencé de manière à passer automatiquement en mode de descente, lors du passage du système d'attache en mode de descente par le chaussage d'une chaussure. En d'autres termes, l'engagement d'une chaussure dans le système d'attache, qui se produit lors du chaussage pour entamer une descente, entraîne automatiquement le passage du système de frein en mode de descente.In this embodiment, the brake system is arranged so that, in the ascent mode, the lever 30, preferably the levers, is held in position autonomously. Autonomously, means that the only components of the brake system, namely the lever 30, the control plate 40 and the elastic member 50, allow the brake system to be held in place when it is mounted on the ski. . Unlike the systems known from the state of the art, there is therefore no separate locking system to actuate, to maintain the brake system in the ascent mode. In addition, the brake system is arranged so as to automatically switch to descent mode, when the fastening system goes into descent mode by putting on a shoe. In other words, the engagement of a boot in the attachment system, which occurs when putting on the boot to start a descent, automatically causes the brake system to switch to descent mode.

De manière plus précise mais non limitative, le système de frein comporte deux leviers 30 destinés à prendre place de part et d'autre du ski, permettant ainsi une action dans la neige symétrique par rapport au ski. Les leviers 30 sont formés d'une tige pliée en deux U successifs. La tige forme un premier U, dont la branche centrale 32 coopère avec la plaque de commande 40 selon l'axe X2. La plaque de commande comporte un corps principal, de forme générale parallélépipédique, traversé par la branche centrale 32. Les branches latérales 34 du premier U se prolongent en deux revers 36, parallèles à la branche centrale 32 et qui forment la branche centrale du deuxième U, dont la partie centrale en regard de la branche centrale 32 est donc absente. Ces revers 36 coopèrent avec l'embase 28 selon l'axe X et sont ensuite prolongés par des ancrages 38 destinés à s'enfoncer dans la neige en position déclenchée.More precisely but not limited to, the brake system comprises two levers 30 intended to take place on either side of the ski, thus allowing action in the snow that is symmetrical with respect to the ski. The levers 30 are formed of a rod bent into two successive U's. The rod forms a first U, the central branch 32 of which cooperates with the control plate 40 along the axis X2. The control plate comprises a main body, of generally parallelepipedal shape, crossed by the central branch 32. The lateral branches 34 of the first U extend in two setbacks 36, parallel to the central branch 32 and which form the central branch of the second U , the central part of which facing the central branch 32 is therefore absent. These cuffs 36 cooperate with the base 28 along the X axis and are then extended by anchors 38 intended to sink into the snow in the released position.

A une première extrémité, située du côté du plot 12, la plaque de commande comporte une ouverture cylindrique 41, orientée selon l'axe X2 et à l'intérieur de laquelle est ajustée de manière pivotante, la branche centrale 32 du premier U de la tige. A une deuxième extrémité, opposée à la première, la plaque de commande 40 est reliée à l'organe élastique 50.At a first end, located on the side of the stud 12, the control plate has a cylindrical opening 41, oriented along the axis X2 and inside which is pivotally adjusted, the central branch 32 of the first U of the rod. At a second end, opposite the first, the control plate 40 is connected to the elastic member 50.

Dans un mode de réalisation avantageux, la plaque de commande 40 est percée d'un trou 42, orienté parallèlement à l'axe X et à l'axe X2, pour recevoir un organe élastique 50, par exemple de type fil, relié à l'embase 28, mais d'autres possibilités d'organes ressort et de liaison avec la plaque de commande 40 sont envisageables. On peut par exemple prévoir un U supplémentaire pour le levier et monter la plaque de commande pivotante sur des branches intermédiaires, tandis qu'un ressort est agencé entre la branche centrale et une barrette passant par X3 (fig. 7).In an advantageous embodiment, the control plate 40 is pierced with a hole 42, oriented parallel to the X axis and to the X2 axis, to receive an elastic member 50, for example of the wire type, connected to the 'base 28, but other possibilities of spring and connection members with the control plate 40 are possible. One can for example provide an additional U for the lever and mount the pivoting control plate on intermediate branches, while a spring is arranged between the central branch and a bar passing through X3 ( fig. 7 ).

Ainsi, la plaque de commande 40 peut pivoter autour de la branche centrale du levier 30, mettant plus au moins l'organe élastique 50 en tension, en fonction de la position angulaire du trou 42 et donc de sa distance par rapport à l'embase 28 et donc au point d'attache de l'organe élastique 50.Thus, the control plate 40 can pivot around the central branch of the lever 30, putting more or less the elastic member 50 in tension, as a function of the angular position of the hole 42 and therefore of its distance from the base. 28 and therefore at the point of attachment of the elastic member 50.

De manière avantageuse, les deux bords inférieurs de la plaque de commande 40, orientés sensiblement parallèlement aux axes X et X2 et situés ou destinés à être situés du côté de la planche de ski 22, sont conformés de manière particulière.Advantageously, the two lower edges of the control plate 40, oriented substantially parallel to the axes X and X2 and located or intended to be located on the side of the ski board 22, are shaped in a particular way.

Ainsi, la plaque de commande 40 comporte, du côté du bord 43 et à proximité de l'ouverture 41, une paire d'ailettes 45, agencées de part et d'autre de la partie de la plaque traversée par la branche 32. Les ailettes 45 sont agencées pour coopérer avec les extrémités de la branche centrale 32, dépassant de part et d'autre du corps principal de la plaque. Comme on peut le voir sur la figure 2, les ailettes 45 définissent une première butée, contre laquelle les leviers viennent prendre appui, sous l'action de l'organe élastique 50, lorsque la plaque de commande 40 est dans le mode de montée. Dans cette position, la résultante des forces exercées sur la plaque de commande par l'organe élastique 50 et les forces d'appui entre les ailettes 45 et les leviers 30 est sensiblement nulle. Ainsi, lorsque la plaque de commande 40 est orientée de manière à mettre les ailettes 45 au contact de la branche 32, on définit une première position stable du levier 30.Thus, the control plate 40 comprises, on the side of the edge 43 and near the opening 41, a pair of fins 45, arranged on either side of the part of the plate through which the branch 32 passes. fins 45 are arranged to cooperate with the ends of the central branch 32, projecting on either side of the main body of the plate. As can be seen on the figure 2 , the fins 45 define a first stop, against which the levers come to bear, under the action of the elastic member 50, when the control plate 40 is in the ascent mode. In this position, the resultant of the forces exerted on the control plate by the elastic member 50 and the bearing forces between the fins 45 and the levers 30 is substantially zero. So when the plaque control 40 is oriented so as to bring the fins 45 into contact with the branch 32, a first stable position of the lever 30 is defined.

Le bord 46 situé du côté opposé au plot 12 présente une surface sensiblement cylindrique, dont l'axe principal est orienté parallèlement à l'axe X. Cette surface cylindrique est donc apte à rouler (avec ou sans glissement) sur la planche de ski 22, lorsque la plaque de commande 40 pivote sur la branche centrale 32 de la tige.The edge 46 located on the side opposite the stud 12 has a substantially cylindrical surface, the main axis of which is oriented parallel to the X axis. This cylindrical surface is therefore able to roll (with or without sliding) on the ski board 22. , when the control plate 40 pivots on the central branch 32 of the rod.

La plaque de commande 40 comprend encore deux rebords 47 en saillie, situés à proximité de l'ouverture 41 selon l'axe X2, de part et d'autre de cette ouverture, c'est-à-dire en regard des ailettes 45, de l'autre côté de l'ouverture 41 par rapport à l'axe X2. Comme on peut le voir sur la figure 1, ces rebords 47 sont situés du côté de la planche de ski 22, lorsque la plaque de commande 40 est orientée en position correspondant au mode de descente, déclenchée. Les rebords 47 sont conformés pour fournir un appui aux branches latérales 34 du premier U des leviers 30 et définir une butée. Dans cette position, la résultante des forces exercées sur la plaque de commande par l'organe élastique 50 et les forces d'appui entre les rebords 47 et les leviers 30 est sensiblement nulle. Ainsi, lorsque la plaque de commande 40 est orientée de manière à mettre les rebords 47 au contact des branches 34, on définit une deuxième position stable du levier 30.The control plate 40 also comprises two projecting flanges 47, located near the opening 41 along the axis X2, on either side of this opening, that is to say opposite the fins 45, on the other side of the opening 41 with respect to the axis X2. As can be seen on the figure 1 , these edges 47 are located on the side of the ski board 22, when the control plate 40 is oriented in the position corresponding to the descent mode, triggered. The flanges 47 are shaped to provide support to the side branches 34 of the first U of the levers 30 and to define a stop. In this position, the resultant of the forces exerted on the control plate by the elastic member 50 and the bearing forces between the flanges 47 and the levers 30 is substantially zero. Thus, when the control plate 40 is oriented so as to bring the flanges 47 into contact with the branches 34, a second stable position of the lever 30 is defined.

Ainsi, comme on le comprend de la description ci-dessus et comme on le comprendra encore mieux ci-dessous, quand la plaque de commande 40 est dans la position de montée (fig. 2), le vecteur de la force exercée par l'organe élastique 50 sur la plaque de commande est situé à un niveau supérieur par rapport l'axe X2 et tend à faire tourner la plaque de commande 40 autour de cet axe X2, dans une première direction, de sorte que la plaque de commande pivote vers le haut. Comme expliqué ci-dessus, le système de fixation est alors dans une position stable, grâce à la coopération entre les ailettes 45 et la branche 32, la résultante de ces forces étant nulle ou sensiblement nulle.Thus, as will be understood from the description above and as will be understood even better below, when the control plate 40 is in the up position ( fig. 2 ), the vector of the force exerted by the elastic member 50 on the control plate is located at a higher level relative to the axis X2 and tends to cause the control plate 40 to rotate around this axis X2, in a first direction, so that the control plate swings up. As explained above, the fixing system is then in a stable position, thanks to the cooperation between the fins 45 and the branch 32, the resultant of these forces being zero or substantially zero.

Dans ce mode de réalisation, lorsque le système de fixation est en position de montée, un appui exercé sur la plaque de commande 40, en direction de la planche de ski 22, typiquement un appui exercé par une chaussure lors du chaussage pour le passage en mode de descente, entraîne la rotation de la plaque de commande 40 (fig. 3). Dans un premier temps au moins, la plaque de commande 40 va rouler sur la surface supérieure de la planche de ski 22. Cette rotation entraîne le passage du vecteur de la force exercée par l'organe élastique 50 à un niveau inférieur par rapport à l'axe X2 et tend à faire tourner la plaque de commande 40 autour de cet axe X2, dans une deuxième direction, opposée à la première, de sorte que la plaque de commande 40 pivote vers le bas. Ce passage du vecteur de la force élastique, de l'autre côté de l'axe X2, entraîne le passage automatique du système de fixation en mode de descente, décrit précédemment. En fonction de la présence de la chaussure, la position sera déclenchée ou plus logiquement de déclenchement, si la chaussure s'engage dans la fixation. En d'autres termes, comme on peut le voir sur la figure 4, l'appui de la chaussure sur la plaque de commande 40, empêche l'organe élastique de ramener les branches 34 au contact des rebords 47.In this embodiment, when the binding system is in the ascent position, a support exerted on the control plate 40, in the direction of the ski board 22, typically a support exerted by a boot during the booting for the passage in descent mode, drives rotation of the control plate 40 ( fig. 3 ). At least initially, the control plate 40 will roll on the upper surface of the ski board 22. This rotation causes the vector of the force exerted by the elastic member 50 to pass to a lower level with respect to the 'axis X2 and tends to rotate the control plate 40 around this axis X2, in a second direction, opposite to the first, so that the control plate 40 pivots downward. This passage of the vector of the elastic force, on the other side of the axis X2, causes the automatic passage of the fixing system in descent mode, described previously. Depending on the presence of the boot, the position will be triggered or more logically triggered, if the boot engages in the binding. In other words, as can be seen from the figure 4 , the support of the boot on the control plate 40, prevents the elastic member from bringing the branches 34 into contact with the edges 47.

Ainsi qu'illustré sur les figures 5 et 6, un déchaussage à partir de la position de déclenchement, libère les freins, jusqu'à la position déclenchée, dans laquelle les branches 34 sont au contact des rebords 47 (fig. 6).As illustrated on figures 5 and 6 , a release from the trigger position, releases the brakes, up to the triggered position, in which the branches 34 are in contact with the edges 47 ( fig. 6 ).

En position descente, les chaussages et déchaussages successifs correspondant respectivement aux passages en position de déclenchement et déclenchées, conservent l'orientation du vecteur des forces de l'organe élastique par rapport à l'axe X2. Le système de fixation peut passer entre la position de déclenchement et la position déclenchée, comme une fixation de ski alpin traditionnel.In the descent position, the successive putting on and taking off, corresponding respectively to the passages in the triggered and triggered position, keep the orientation of the force vector of the elastic member with respect to the axis X2. The binding system can switch between the triggered position and the triggered position, like a traditional alpine ski binding.

Pour repasser la plaque de commande 40 en mode de montée, cette dernière est manipulée directement. Plus particulièrement, l'utilisateur la bascule pour armer l'organe élastique 50 et lui faire passer la position de basculement, dans laquelle le vecteur des forces de l'organe élastique 50 est aligné avec X2. Une fois cette position de basculement franchie, les forces exercées par l'organe élastique 50 ramènent la plaque de commande 40 dans la position stable de montée, en appui sur le levier par les ailettes 45.To return the control plate 40 to the ascent mode, the latter is manipulated directly. More particularly, the user rocks it to arm the elastic member 50 and make it pass the tilting position, in which the vector of the forces of the elastic member 50 is aligned with X2. Once this tilting position has been crossed, the forces exerted by the elastic member 50 return the control plate 40 to the stable up position, resting on the lever by the fins 45.

Dans ce mode de réalisation, le passage au mode de montée se fait par la seule et unique manipulation (au sens propre du terme, c'est-à-dire par une action manuelle de l'utilisateur) de la plaque de commande 40, sans actionnement d'un quelconque dispositif supplémentaire, de verrouillage ou autre. Cette manipulation peut être effectuée en une succession d'actions efficaces, au cours de laquelle l'utilisateur abaisse le capot 20 pour entamer une montée. Le passage au mode de descente est automatique, par le seul appui de la chaussure sur la plaque de commande, l'appui étant inhérent au chaussage de la chaussure de ski sur la fixation. Sans action spécifique supplémentaire, le système de fixation passe automatiquement en mode de descente lors de l'engagement de la chaussure.In this embodiment, the passage to the ascent mode is effected by the one and only manipulation (in the literal sense of the term, that is to say by a manual action of the user) of the control plate 40, without actuation of any additional device, locking or otherwise. This manipulation can be carried out in a succession of effective actions, during which the user lowers the cover 20 to begin a climb. The change to the descent mode is automatic, by the sole support of the boot on the control plate, the support being inherent to the fitting of the ski boot on the binding. Without any additional specific action, the binding system automatically switches to descent mode when the boot is engaged.

Naturellement, le système doit être dimensionné en référence à la hauteur par rapport à la planche de ski, de la surface inférieure de la chaussure, lorsqu'elle est engagée sur la fixation, pour que le chaussage induise une rotation de la plaque de commande permettant de franchir le point de basculement.Naturally, the system must be dimensioned with reference to the height relative to the ski board, of the lower surface of the boot, when it is engaged on the binding, so that the boot induces a rotation of the control plate allowing to cross the tipping point.

Les figures 7 à 13 montrent un autre mode de réalisation, utilisant une cinématique voisine pour la plaque de commande à celle du mode de réalisation ci-dessus, mais caractérisé par un autre aspect inventif à la base de la présente demande.The figures 7 to 13 show another embodiment, using kinematics similar for the control plate to that of the above embodiment, but characterized by another inventive aspect on the basis of the present application.

Comme précédemment mentionné en référence à la figure 7, le levier comporte un U central supplémentaire par rapport au mode de réalisation décrit principalement ci-dessus. Ce U central reçoit l'organe élastique 50 qui relie ainsi la plaque de commande et le levier. Dans l'exemple, il prend la forme d'un ressort boudin, mais d'autres types de ressorts peuvent être utilisés. L'agencement de l'organe élastique du premier mode de réalisation est également possible et un autre agencement sera proposé ci-dessous en référence aux figures 15-17.As previously mentioned with reference to the figure 7 , the lever has an additional central U with respect to the embodiment described mainly above. This central U receives the elastic member 50 which thus connects the control plate and the lever. In the example, it takes the form of a coil spring, but other types of springs can be used. The arrangement of the elastic member of the first embodiment is also possible and another arrangement will be proposed below with reference to figures 15-17 .

De part et d'autre de l'organe élastique 50, la plaque de commande 40 est montée à rotation sur le levier, selon l'axe X2. Les branches du levier agencées selon X2 peuvent être dans la continuité de la branche centrale du U central ou former des premiers revers 37, agencés parallèlement à X2.On either side of the elastic member 50, the control plate 40 is rotatably mounted on the lever, along the axis X2. The branches of the lever arranged along X2 can be in the continuity of the central branch of the central U or form first cuffs 37, arranged parallel to X2.

Comme précédemment, les leviers se prolongent en deux revers 36, parallèles à la branche centrale 32. Ces revers 36 coopèrent avec l'embase 28 selon l'axe X et sont ensuite prolongés par des ancrages 38 destinés à s'enfoncer dans la neige en position déclenchée.As before, the levers extend into two cuffs 36, parallel to the central branch 32. These cuffs 36 cooperate with the base 28 along the X axis and are then extended by anchors 38 intended to sink into the snow in triggered position.

Dans le mode de réalisation illustré, la plaque de commande 40 comprend deux jambes 60 définissant les bords latéraux de la plaque. Les extrémités des jambes sont ouvertes en une fourche, dont chacune définit l'ouverture 41 pour le passage des leviers selon l'axe X2. La tension exercée par l'organe élastique assure que les leviers restent en place dans les fourches.In the illustrated embodiment, the control plate 40 comprises two legs 60 defining the side edges of the plate. The ends of the legs are open in a fork, each of which defines the opening 41 for the passage of the levers along the axis X2. The tension exerted by the elastic member ensures that the levers remain in place in the forks.

La plaque de commande comprend une ouverture traversante dans sa partie médiane, parallèle aux jambes 60 et située entre elles, dans laquelle prend place l'organe élastique 50. Ce dernier, relié à une première de ses extrémités au levier 30, peut être fixé par son autre extrémité, par tout moyen connu, à la plaque de commande. De préférence, l'organe élastique est agencé de manière à exercer une force perpendiculaire à l'axe de rotation X2, pour limiter les forces qui tendraient à mettre la plaque de commande 40 de biais.The control plate comprises a through opening in its middle part, parallel to the legs 60 and located between them, in which the elastic member 50 is seated. The latter, connected at a first of its ends to the lever 30, can be fixed by its other end, by any known means, to the control plate. Preferably, the elastic member is arranged so as to exert a force perpendicular to the axis of rotation X2, in order to limit the forces which would tend to put the control plate 40 at an angle.

La plaque de commande 40 peut encore comporter des creusures 49, sensiblement dans l'axe des jambes 60. Comme on le comprendra ci-après, les creusures 49 sont situées dans des zones destinées à être au voisinage des tiges 14 lorsque la fixation arrière est en position de montée.The control plate 40 may also include recesses 49, substantially in the axis of the legs 60. As will be understood below, the recesses 49 are located in zones intended to be in the vicinity of the rods 14 when the rear binding is in the ascent position.

L'embase 28 comporte une plaque rapportée 29 qui vient fermer un logement ménagé pour recevoir les leviers et permettre leur pivotement selon l'axe X, tout en simplifiant leur montage. De manière avantageuse, la plaque 29 peut être fixée sur le socle 10. Le socle 10 et l'embase 28 pourraient être formés d'une seule pièce.The base 28 comprises an attached plate 29 which closes a housing formed to receive the levers and allow them to pivot along the X axis, while simplifying their assembly. Advantageously, the plate 29 can be fixed on the base 10. The base 10 and the base 28 could be formed in one piece.

Selon l'invention, le plot arrière ne comprend pas de capot pour réaliser la cale de montée. Pour réaliser la fonction de cale de montée, la plaque de commande 40 est apte, dans le mode de montée, à venir en butée contre un organe de butée sous l'action de l'organe élastique 50, en fournissant un appui à la chaussure, particulièrement à son talon, pour former ladite cale de montée. De préférence, la plaque de commande vient coiffer les tiges 14 et fournit un appui situé à un niveau supérieur auxdites tiges. Toutefois, il suffit que la chaussure ne puisse pas s'enclencher dans le système d'attache, donc que les tiges 14 ne puissent pas s'engager dans les logements 16. Pour ce faire, l'appui fourni par la plaque de commande peut être situé juste sous les tiges, ou en avant de celles-ci, comme proposé dans le mode de réalisation de la figure 14 qui sera décrit ultérieurement.According to the invention, the rear stud does not include a cover for producing the climbing wedge. To perform the function of a climbing wedge, the control plate 40 is able, in the ascent mode, to come into abutment against a stop member under the action of the elastic member 50, by providing support to the boot. , particularly at its heel, to form said climbing wedge. Preferably, the control plate covers the rods 14 and provides a support located at a level above said rods. However, it suffices that the boot cannot engage in the fastening system, so that the rods 14 cannot engage in the housings 16. To do this, the support provided by the control plate can be located just under the stems, or in front of them, as proposed in the embodiment of the figure 14 which will be described later.

Dans le mode de réalisation des figures 7 à 13, l'organe de butée est formé par le plot 12 ou les tiges 14.In the embodiment of figures 7 to 13 , the stop member is formed by the stud 12 or the rods 14.

L'homme du métier pourra adapter la forme de la plaque de commande 40 sans sortir du cadre de l'invention, qui est défini par le fait que la plaque de commande 40 sert de cale de montée.Those skilled in the art will be able to adapt the shape of the control plate 40 without departing from the scope of the invention, which is defined by the fact that the control plate 40 serves as a lifting wedge.

En position de montée, les tiges 14 peuvent se loger dans les creusures 49, dont la forme est adaptée dans ce but. La forme des creusures peut être avantageusement ajustée pour que les tiges participent au maintien latéral de la plaque de commande. L'organe élastique maintient la plaque de commande en appui contre les tiges. Avantageusement, les tiges fournissent également un support pour la plaque de commande 40, lorsque l'utilisateur prend appui sur elle, lors de sa foulée. On peut également prévoir un engagement à cran pour amener un verrouillage supplémentaire, obtenu par la coopération d'une nervure dans les creusures et d'une gorge ménagée sur une ou les tige(s).In the mounted position, the rods 14 can be housed in the recesses 49, the shape of which is adapted for this purpose. The shape of the hollows can be advantageously adjusted so that the rods participate in the lateral support of the control plate. The resilient member keeps the control plate resting against the rods. Advantageously, the rods also provide a support for the control plate 40, when the user leans on it, during his stride. One can also provide a notch engagement to bring an additional locking, obtained by the cooperation of a rib in the recesses and a groove made on one or the rod (s).

Dans ce mode de réalisation, le flanc distal de la plaque par rapport à l'axe X, c'est-à-dire du côté du bord 46, forme une surface d'appui pour la chaussure en position de montée. Ce flanc distal est sensiblement horizontal, c'est-à-dire parallèle à la planche de ski, lorsque la plaque de commande 40 est en butée contre le plot/respectivement les tiges.In this embodiment, the flank distal of the plate relative to the X axis, that is to say on the side of the edge 46, forms a bearing surface for the boot in the ascent position. This distal flank is substantially horizontal, that is to say parallel to the ski board, when the control plate 40 is in abutment against the stud / respectively the rods.

Si d'autres formes sont possibles, on peut également prévoir une partie articulée sur la plaque de commande 40, pouvant être actionnée manuellement pour pivoter et prendre place sur la surface définie par le flanc distal, pour former une deuxième hauteur de cale de montée.If other shapes are possible, it is also possible to provide a part articulated on the control plate 40, which can be actuated manually to pivot and take place on the surface defined by the distal flank, to form a second height of heel lift.

En référence à la figure 8, on voit la fixation arrière selon la présente invention, en mode de montée. La plaque de commande 40 est relevée, en appui sur les tiges 14 et son flanc distal forme un appui pour la chaussure et sert ainsi de cale de montée. La plaque de commande est dans une position sensiblement verticale dans ce mode.With reference to the figure 8 , we see the rear binding according to the present invention, in ascent mode. The control plate 40 is raised, resting on the rods 14 and its distal flank forms a support for the boot and thus serves as a climbing wedge. The control plate is in a substantially vertical position in this mode.

La suite des figures 9 à 12 illustre la séquence et la cinématique du passage de la fixation arrière du mode de montée au mode de descente, en l'espèce en position déclenchée sur la figure 12, puisque la chaussure n'est pas engagée dans la fixation. L'actionnement ici décrit est effectué manuellement par l'utilisateur. Ce dernier abaisse l'extrémité distale de la plaque de commande 40 en direction de la planche de ski. En amenant la plaque au contact du ski (fig. 10), il fait passer l'organe élastique 50 de l'autre côté du point de basculement. Par rapport au mode de montée, l'organe élastique entraine cette fois la plaque de commande 40 dans l'autre sens de rotation (fig. 11). Sous l'action de ce dernier, les leviers 30 sont entraînés en dessous du niveau inférieur de la planche de ski, jusqu'à ce que les branches 36, ou le cas échéant une autre partie de la plaque de commande, vienne en butée contre les tiges (fig. 12 ou fig. 7). La plaque de commande 40 est également appuyée contre la planche du ski.The continuation of figures 9 to 12 illustrates the sequence and kinematics of the passage of the rear binding from ascent mode to descent mode, in this case in the released position on the figure 12 , since the shoe is not engaged in the binding. The actuation described here is carried out manually by the user. The latter lowers the distal end of the control plate 40 towards the ski board. By bringing the plate in contact with the ski ( fig. 10 ), it passes the elastic member 50 to the other side of the tipping point. Compared to the ascent mode, the elastic member this time drives the control plate 40 in the other direction of rotation ( fig. 11 ). Under the action of the latter, the levers 30 are driven below the lower level of the ski board, until the branches 36, or where appropriate another part of the control plate, comes into abutment against the stems ( fig. 12 or fig. 7 ). The control plate 40 is also pressed against the ski board.

Dans cette position, l'engagement de la chaussure dans la fixation permet de passer directement en position de déclenchement du mode de descente, représenté à la figure 13. La plaque de commande 40 est alors dans une position sensiblement horizontale.In this position, the engagement of the boot in the binding makes it possible to switch directly to the triggering position of the descent mode, shown in figure 13 . The control plate 40 is then in a substantially horizontal position.

Dans le mode de réalisation de la figure 14, l'organe de butée est formé par le levier 30. Pour ce faire, la plaque de commande 40 comprend au moins un, de préférence deux, élément en saillie, par un exemple deux doigts 70, disposés de part et d'autre de la plaque de commande. Des structures surmoulées avec la plaque de commande peuvent également convenir. Les éléments en saillie sont agencés de manière à pouvoir coopérer avec les branches 34, à l'instar des ailettes 45. Ainsi, le système de stop ski est indépendant du plot et du système d'attache. Un dispositif de ressort de torsion, non représenté, peut être prévu entre l'embase et le levier pour maintenir la plaque de commande 40 au contact du ski, par les extrémités des jambes 60.In the embodiment of the figure 14 , the stop member is formed by the lever 30. To do this, the control plate 40 comprises at least one, preferably two, projecting element, for example two fingers 70, arranged on either side of the control plate. Overmolded structures with the control plate may also be suitable. The projecting elements are arranged so as to be able to cooperate with the branches 34, like the fins 45. Thus, the stop ski system is independent of the stud and of the attachment system. A torsion spring device, not shown, can be provided between the base and the lever to keep the control plate 40 in contact with the ski, by the ends of the legs 60.

On a représenté sur les figures 15 à 17 un mode de réalisation supplémentaire. La plaque de commande comprend une barrette 80 reliant les deux jambes 60. Cette barrette est apte à coopérer avec un crochet de verrouillage 82, solidaire de l'embase en s'étendant en saillie, selon une direction essentiellement verticale. Le crochet assure la fonction d'organe de butée pour maintenir la plaque de commande en position.We have represented on the figures 15 to 17 a further embodiment. The control plate comprises a bar 80 connecting the two legs 60. This bar is able to cooperate with a locking hook 82, integral with the base by extending projecting, in an essentially vertical direction. The hook acts as a stop member to hold the control plate in position.

L'organe élastique 50 est ici formé par au moins un, de préférence deux, ressort(s) de torsion, intercalés entre l'embase et le levier et exerçant une force tendant à amener le levier en mode de descente déclenché. Si la plaque de commande 40 est libre en rotation sur le levier 30, l'organe élastique 50 peut, comme on le comprendra ci-dessous, exercer une action indirecte sur la plaque de commande, pour la maintenir en mode de montée.The elastic member 50 is here formed by at least one, preferably two, torsion spring (s), interposed between the base and the lever and exerting a force tending to bring the lever into the triggered descent mode. If the control plate 40 is free to rotate on the lever 30, the elastic member 50 can, as will be understood below, exert an indirect action on the control plate, to keep it in the ascent mode.

La plaque de commande 40 présente deux rebords, similaires à ceux du premier mode de réalisation, également référencés 47, pour des raisons de clarté.The control plate 40 has two edges, similar to those of the first embodiment, also referenced 47, for reasons of clarity.

En mode de descente déclenché, représenté à la figure 15, le crochet de verrouillage 82 n'est pas dans la course de la barrette 80. La plaque de commande 40 est maintenue dans une position stable par l'organe élastique, les rebords 47 étant en appui contre les leviers 30.In triggered descent mode, shown in figure 15 , the locking hook 82 is not in the course of the bar 80. The control plate 40 is held in a stable position by the elastic member, the flanges 47 being pressed against the levers 30.

En appuyant sur la plaque de commande (figure 16) et en la retournant pour l'amener en mode de montée (figure 17), le crochet de verrouillage 82 est dans la course de la barrette 80, cette dernière venant se prendre en butée contre le crochet, sous l'action de l'organe élastique.By pressing the control plate ( figure 16 ) and turning it over to bring it into climb mode ( figure 17 ), the locking hook 82 is in the course of the bar 80, the latter coming into abutment against the hook, under the action of the elastic member.

Dans cette variante, le système de stop ski est également indépendant du plot et du système d'attache.In this variant, the ski stop system is also independent of the stud and of the attachment system.

A la figure 18, on a représenté une variante supplémentaire de l'invention. En effet, toutes les chaussures ne présentent pas des hauteurs de talons identiques. Ainsi, la dimension entre les logements 16 et la surface inférieure du talon de la chaussure peut varier entre différents modèles de chaussure. Or cette dimension est importante pour que la chaussure, en mode de descente, appuie sur la plaque de commande pour maintenir les leviers 30 au-dessus du niveau inférieur de la planche de ski. Si la distance entre les logements 16 et la surface inférieure du talon de la chaussure est insuffisante, les leviers peuvent être insuffisamment relevés, et avoir une action de frein, ce qui n'est pas souhaité en mode de descente enclenché, quand la chaussure est enclenchée dans la fixation.To the figure 18 , there is shown an additional variant of the invention. Indeed, not all shoes have identical heel heights. Thus, the dimension between the housings 16 and the lower surface of the heel of the shoe can vary between different models of shoe. However, this dimension is important so that the boot, in descent mode, presses on the control plate to keep the levers 30 above the lower level of the ski board. If the distance between the housings 16 and the lower surface of the heel of the boot is insufficient, the levers may be insufficiently raised, and have a braking action, which is not desired in the engaged descent mode, when the boot is engaged in the binding.

Aussi, pour pallier ce problème, on prévoit une cale ou un jeu de cales 200, amovible et interchangeable, pouvant se fixer sur la plaque de commande 40, pour adapter l'épaisseur de celle-ci, et particulièrement pour l'adapter à la distance entre les logements 16 et la surface inférieure du talon de la chaussure. Dans l'exemple illustré à la figure 18, on a un jeu de deux cales 200, vissées sur la plaque de commande 40. D'autres modes de fixation, notamment par clipsage, peuvent être envisagés. Des cales de différentes épaisseurs peuvent permettre d'ajuster le réglage de la position des leviers, en mode de descente enclenché.Also, to overcome this problem, there is provided a wedge or a set of wedges 200, removable and interchangeable, which can be fixed on the control plate 40, to adapt the thickness of the latter, and particularly to adapt it to the distance between the housings 16 and the lower surface of the heel of the shoe. In the example shown in figure 18 , we have a set of two wedges 200, screwed onto the control plate 40. Other fixing methods, in particular by clipping, can be envisaged. Shims of different thicknesses can be used to adjust the position of the levers, while the descent mode is engaged.

Au niveau de l'embase 28, le passage du levier 30 dans l'embase peut aussi être réglé par des entretoises 202, permettant d'ajuster la position de l'axe de rotation X par rapport à la surface inférieure de la planche de ski. Dans l'exemple illustré, l'entretoise 202 est située au-dessus du levier 30, qui est donc à son niveau inférieur, dans une gorge 204 ménagée dans l'embase 28. La plaque rapportée 29 assure le maintien du levier 30 et de l'entretoise 202. L'entretoise 202 pourrait également être située au fond de la gorge 204, pour éloigner l'axe X du niveau inférieur de la planche de ski.At the level of the base 28, the passage of the lever 30 in the base can also be adjusted by spacers 202, making it possible to adjust the position of the axis of rotation X relative to the lower surface of the ski board. . In the example illustrated, the spacer 202 is located above the lever 30, which is therefore at its lower level, in a groove 204 formed in the base 28. The attached plate 29 maintains the lever 30 and the spacer 202. The spacer 202 could also be located at the bottom of the groove 204, to move the X axis away from the lower level of the ski board.

Ainsi, la présente invention propose une fixation arrière pour ski de randonnée, destinée à une pratique sportive et/ou compétitive, dans laquelle le système de stop ski forme lui-même une cale de montée. L'homme du métier pourra éventuellement prévoir des variantes aux modes de réalisation décrit ci-dessus, sans nécessairement sortir du cadre de l'invention défini par les revendications. Notamment, un système de réglage de la tension de l'organe élastique pourra être prévu.Thus, the present invention provides a rear binding for ski touring, intended for sporting and / or competitive practice, in which the ski stop system itself forms a climbing wedge. Those skilled in the art may optionally provide variants of the embodiments described above, without necessarily departing from the scope of the invention defined by the claims. In particular, a system for adjusting the tension of the elastic member may be provided.

Claims (13)

Fixation arrière pour ski de randonnée, comprenant : - un système d'attache destiné à être fixée à une planche de ski (22), et agencé pour coopérer avec le talon d'une chaussure de ski, pour être fixé à ladite chaussure dans un mode de fonctionnement dit "de descente", et pour fournir un appui à ladite chaussure, sans liaison rigide, dans un mode de fonctionnement dit "de montée", - une embase (28) destinée à être fixée à une planche de ski (22), - un système de frein doté d'au moins un levier (30) monté à rotation sur l'embase (28), selon un axe X, et d'une plaque de commande (40) montée pivotante sur le levier (30) selon un axe X2 parallèle à l'axe X, et - un organe élastique (50) agencé pour coopérer avec le système de frein,
ledit système de frein étant apte à évoluer entre
un mode dit "de descente" lorsque le système d'attache est en mode de descente, dans lequel le levier (30) pivote entre une position de déclenchement, dans laquelle il est apte à être maintenu au-dessus du niveau inférieur de la planche de ski (22) par un appui sur la plaque de commande (40) à l'encontre de l'action de l'organe élastique (50),
et une position déclenchée, dans laquelle il est maintenu au-dessous du niveau inférieur de la planche de ski (22) sous l'action de l'organe élastique (50), et
un mode dit "de montée" dans lequel le levier (30) est positionné au-dessus du niveau inférieur de la planche de ski (22), lorsque le système d'attache est en mode de montée, caractérisée en ce que, dans le mode de montée, la plaque de commande (40) est maintenue en butée contre un organe de butée sous l'action de l'organe élastique, la plaque de commande étant alors positionnée de manière à former une cale de montée et fournir un appui au talon d'une chaussure, empêchant la chaussure d'être fixée au système d'attache.Rear binding for ski touring, comprising: - an attachment system intended to be attached to a ski board (22), and arranged to cooperate with the heel of a ski boot, to be attached to said boot in a so-called "downhill" mode of operation, and to provide support to said shoe, without a rigid connection, in a so-called "climbing" mode of operation, - a base (28) intended to be fixed to a ski board (22), - a brake system provided with at least one lever (30) rotatably mounted on the base (28), along an X axis, and a control plate (40) mounted to pivot on the lever (30) according to an X2 axis parallel to the X axis, and - an elastic member (50) arranged to cooperate with the brake system,
said brake system being able to evolve between
a so-called "descent" mode when the attachment system is in descent mode, in which the lever (30) pivots between a release position, in which it is able to be held above the lower level of the board ski (22) by pressing on the control plate (40) against the action of the elastic member (50),
and a released position, in which it is held below the lower level of the ski board (22) under the action of the elastic member (50), and
a so-called "climb" mode in which the lever (30) is positioned above the lower level of the ski board (22), when the attachment system is in climb mode, characterized in that , in the ascent mode, the control plate (40) is held in abutment against a stop member under the action of the elastic member, the control plate then being positioned so as to form a wedge rise and provide support to the heel of a shoe, preventing the shoe from being attached to the attachment system. Fixation arrière selon la revendication 1, caractérisée en ce que, dans le mode de montée, la plaque de commande (40) est positionnée de manière sensiblement verticale.Rear binding according to claim 1, characterized in that , in the ascent mode, the control plate (40) is positioned substantially vertical. Fixation arrière selon l'une des revendications 1 et 2, dans laquelle le système d'attache comprend des tiges (14) destinées à coopérer avec la chaussure, caractérisée en ce que, dans le mode de montée, la plaque de commande (40) fournit un appui au talon de la chaussure situé au-dessus desdites tiges.Rear binding according to one of claims 1 and 2, in which the attachment system comprises rods (14) intended to cooperate with the boot, characterized in that , in the ascent mode, the control plate (40) provides support to the heel of the shoe located above said rods. Fixation arrière selon l'un des revendications précédentes, caractérisée en ce que ledit système d'attache définit l'organe de butée.Rear binding according to one of the preceding claims, characterized in that said attachment system defines the stop member. Fixation arrière selon l'une des revendications 1 à 3, caractérisée en ce que le levier (30) définit l'organe de butée, et en ce que la plaque de commande (40) comprend au moins un élément en saillie apte à venir en butée contre le levier.Rear binding according to one of claims 1 to 3, characterized in that the lever (30) defines the stop member, and in that the control plate (40) comprises at least one projecting element capable of coming into stop against the lever. Fixation arrière selon l'une des revendications 1 à 5, caractérisée en ce que le levier (30) comporte une branche centrale (32) par lequel l'organe élastique relie ledit levier à la plaque de commande.Rear binding according to one of claims 1 to 5, characterized in that the lever (30) comprises a central branch (32) through which the elastic member connects said lever to the control plate. Fixation arrière selon la revendication 6, caractérisée en ce que la plaque de commande est montée à rotation sur le levier, de part et d'autre de l'organe élastique.Rear binding according to Claim 6, characterized in that the control plate is mounted for rotation on the lever, on either side of the elastic member. Fixation arrière selon l'une des revendications 1 à 3, caractérisée en ce qu'un crochet de verrouillage (82) solidaire de l'embase, définit l'organe de butée, et en ce que la plaque de commande comprend une barrette (80) apte à coopérer avec ledit crochet de verrouillage (82).Rear binding according to one of claims 1 to 3, characterized in that a locking hook (82) integral with the base defines the stop member, and in that the control plate comprises a bar (80 ) adapted to cooperate with said locking hook (82). Fixation arrière selon l'une des revendications précédentes, dans lequel la plaque de commande comprend un flanc distal de la plaque par rapport à l'axe X, caractérisée en ce que ledit flanc distal forme une surface d'appui pour la chaussure, dans le mode de montée.Rear binding according to one of the preceding claims, in which the control plate comprises a flank distal of the plate with respect to the X axis, characterized in that said distal flank forms a bearing surface for the boot, in the climb mode. Fixation arrière selon l'une des revendications précédentes, caractérisée en ce que ledit flanc distal de la plaque de commande (40) est sensiblement parallèle à l'embase lorsque la plaque de commande (40) est en butée contre l'organe de butée.Rear binding according to one of the preceding claims, characterized in that said distal flank of the control plate (40) is substantially parallel to the base when the control plate (40) is in abutment against the stop member. Fixation arrière selon l'une des revendications précédentes, caractérisée en ce que l'embase (28) comporte une plaque rapportée (29) fermant un logement ménagé dans l'embase pour recevoir le levier (30).Rear binding according to one of the preceding claims, characterized in that the base (28) comprises an attached plate (29) closing a housing provided in the base to receive the lever (30). Fixation arrière selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend au moins une cale (200) amovible et interchangeable, fixée sur la plaque de commande (40), afin d'adapter l'épaisseur de ladite plaque de commande (40).Rear binding according to one of the preceding claims, characterized in that it comprises at least one removable and interchangeable wedge (200), fixed to the control plate (40), in order to adapt the thickness of said control plate. (40). Système de frein pour ski doté
d'au moins un levier (30) monté à rotation selon un axe X sur une embase (28), apte à être montée sur une planche de ski, et
d'une plaque de commande (40) montée pivotante sur le levier (30) selon un axe X2 parallèle à l'axe X, et
d'un organe élastique (50) agencé pour coopérer avec le levier, ledit système de frein étant apte à évoluer entre un mode dit "de descente" dans lequel le levier (30) pivote entre une position de déclenchement, dans laquelle il est apte à être maintenu au-dessus du niveau inférieur de la planche de ski (22) par un appui sur la plaque de commande (40) à l'encontre de l'action de l'organe élastique (50), et une position déclenchée, dans laquelle il est maintenu au-dessous du niveau inférieur de la planche de ski (22) sous l'action de l'organe élastique (50), et un mode dit "de montée" dans lequel le levier (30) est positionné au-dessus du niveau inférieur de la planche de ski (22), caractérisé en ce que, dans le mode de montée, la plaque de commande (40) est maintenue en butée contre un organe de butée sous l'action de l'organe élastique, la plaque de commande étant alors positionnée de manière à former une cale de montée et fournir un appui au talon de la chaussure.Brake system for ski with
at least one lever (30) mounted for rotation about an X axis on a base (28), suitable for being mounted on a ski board, and
a control plate (40) pivotally mounted on the lever (30) along an axis X2 parallel to the axis X, and
an elastic member (50) arranged to cooperate with the lever, said brake system being able to move between a so-called "descent" mode in which the lever (30) pivots between a release position, in which it is able to be maintained above the lower level of the ski board ( 22) by pressing on the control plate (40) against the action of the elastic member (50), and a triggered position, in which it is held below the lower level of the board. ski (22) under the action of the elastic member (50), and a so-called "climb" mode in which the lever (30) is positioned above the lower level of the ski board (22), characterized in that , in the ascent mode, the control plate (40) is held in abutment against a stop member under the action of the elastic member, the control plate then being positioned so as to form a wedge rise and provide support to the heel of the shoe.
EP20315457.0A 2019-11-29 2020-11-19 Rear attachment element for ski mountaineering Pending EP3827887A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1913512A FR3103710B1 (en) 2019-11-29 2019-11-29 Rear binding element for ski touring

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230256319A1 (en) * 2022-02-11 2023-08-17 Atk Sports S.R.L. Rear portion of a ski mountaineering binding
FR3143377A1 (en) * 2022-12-20 2024-06-21 Salomon S.A.S. BRAKING DEVICE FOR FIXING A SLIDER BOARD

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2740519A2 (en) * 2012-12-10 2014-06-11 Skis Rossignol Braking device for touring ski
FR2999091A1 (en) 2012-12-10 2014-06-13 Rossignol Sa Brake device for touring ski, has brake which is adapted to change ski to braking position and non-braking position, and is provided with functional element to form adjustable rise wedge, when brake is in non-braking position
EP3135350A1 (en) * 2015-08-27 2017-03-01 Salomon S.A.S. Braking device for snowboard binding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2740519A2 (en) * 2012-12-10 2014-06-11 Skis Rossignol Braking device for touring ski
FR2999091A1 (en) 2012-12-10 2014-06-13 Rossignol Sa Brake device for touring ski, has brake which is adapted to change ski to braking position and non-braking position, and is provided with functional element to form adjustable rise wedge, when brake is in non-braking position
EP3135350A1 (en) * 2015-08-27 2017-03-01 Salomon S.A.S. Braking device for snowboard binding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230256319A1 (en) * 2022-02-11 2023-08-17 Atk Sports S.R.L. Rear portion of a ski mountaineering binding
FR3143377A1 (en) * 2022-12-20 2024-06-21 Salomon S.A.S. BRAKING DEVICE FOR FIXING A SLIDER BOARD
EP4393559A1 (en) * 2022-12-20 2024-07-03 Salomon S.A.S. Ski brake

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FR3103710B1 (en) 2023-02-24
FR3103710A1 (en) 2021-06-04

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