EP2732856B1 - Binding for a boot on a snowboard and snowboard including such a binding - Google Patents

Binding for a boot on a snowboard and snowboard including such a binding Download PDF

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Publication number
EP2732856B1
EP2732856B1 EP13005448.9A EP13005448A EP2732856B1 EP 2732856 B1 EP2732856 B1 EP 2732856B1 EP 13005448 A EP13005448 A EP 13005448A EP 2732856 B1 EP2732856 B1 EP 2732856B1
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EP
European Patent Office
Prior art keywords
plate
board
ski
base
boot
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.)
Active
Application number
EP13005448.9A
Other languages
German (de)
French (fr)
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EP2732856A1 (en
Inventor
Lionel Favret
Jean-Philippe Guex
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Salomon SAS
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Salomon SAS
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Publication of EP2732856A1 publication Critical patent/EP2732856A1/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
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/075—Vibration dampers
    • 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
    • A63C9/003—Non-swivel sole plate fixed on the ski
    • 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
    • A63C2009/008—Ski bindings with a binding element sliding along a rail during use or setting

Definitions

  • the present invention relates to the attachment of a shoe on a gliding board.
  • the present invention relates to an interface device between the attachment means of the shoe and the gliding board and a gliding board comprising such an interface device.
  • the present invention relates more particularly to the practice of alpine skiing, a practice in which the skier descends very steep terrain at high speed having each of his feet integral with an independent gliding board.
  • the shoes and devices for attaching the shoes to the gliding boards are configured such that the front and the back of the boot are attached to the gliding board and substantially immobilized vertically with respect to that -this.
  • the attachment means of a boot on a gliding board generally comprises at least one front retainer called "stop". This is particularly the case for all ski practices, be it downhill skiing, cross-country ski touring and even telemark skiing. In the case of alpine skiing, the attachment means also comprise a rear retaining device called “heel”.
  • the shoe is inserted between the stop and the heel, these elements can be fixed on a common base or not, which is also called interface.
  • the joint action of these two retaining devices makes it possible to longitudinally fasten the boot with the gliding board.
  • the stop and the heel are each equipped with stop means acting on the shoe.
  • the base on which the stop and the heel is fixed is generally fixed relative to the gliding board, so that the shoe is fixedly fixed on the gliding board.
  • a limited relative movement can be provided between the base and the ski to ensure that the base does not interfere with the flexion of the ski.
  • one of the ends of the base, or the center thereof is securely attached to the ski with no relative movement possible relative to the portion of the ski on which it is attached while the opposite ends may be likely to slide in relation to the ski when the ski flexes.
  • This arrangement makes that the base does not interfere with the flexion of the ski, and there is a ski for which the skier's foot is still fixed relative thereto. Therefore, the irregularities of the ground, if they are too important tend to unbalance the skier because they are transmitted from the ski to the skier through the bindings.
  • US 7,159,891 B1 describes an all-terrain ski to simulate skiing techniques, comprising sliding means and damping means.
  • WO-A-00/10659 discloses a ski whose upper face, opposite to the gliding sole, is equipped with a base which extends over most of the length of the ski and of which a central zone is provided to receive a fixing device of a shoe.
  • the ski is equipped with a longitudinal rail which forms a slideway with a complementary channel formed in the base.
  • the base is fixed to the ski by screws.
  • the ends of the base are movable in translation relative to the ski, in the longitudinal direction of the ski.
  • the ski and the base are curved in a direction perpendicular to the gliding sole of the ski, the concave side being turned downwards.
  • the front and rear ends of the ski comprise stops for limiting the movement of the ends of the base relative to the ski, operable between an unlocked position, in which the translation of the ends of the base relative to the ski is allowed, and a locked position, in which the ends of the base are secured to the ski in a fixed manner.
  • the base In the locked position, the base increases the rigidity of the ski in longitudinal flexion.
  • the unlocked position In the unlocked position, the sliding of the ends of the base relative to the ski has the effect that the base does not oppose the longitudinal flexion of the ski. However, whether in the locked or unlocked position, the skier's foot remains motionless relative to the ski.
  • ski manufacturers advocate a specific position for each ski model. This position is marked on the ski by a line called “mounting point of the middle of shoe” because the ski boot also has in its middle a mark “middle of shoe”.
  • mounting point of the middle of shoe because the ski boot also has in its middle a mark “middle of shoe”.
  • a user may choose not to respect the manufacturer's recommendation and to mount his bindings in such a way that the "middle shoe” mark of the shoe is in front, or behind, of the ski brand.
  • damping means which are placed between the base and the skis which are supposed to mitigate the effects of the irregularities of the ground.
  • rubber plates are sometimes used to play this role.
  • damping means have only a limited effect because they act in a vertical direction.
  • the latter intends in particular to remedy the aforementioned drawbacks by proposing a binding of a shoe on a gliding board to mitigate the undesirable movements of the skier caused by the irregularities of the terrain, including bumps in hollow or relief.
  • the object of the invention is a binding of a boot on a gliding board intended to be used during a sporting practice including gliding phases, said fastening making it possible to fix the shoe of a user in a a first longitudinal position relative to the gliding board;
  • said fastener being characterized in that it comprises: a plate adapted to receive the boot; at least one device for retaining the boot to the plate; sliding means disposed between the plate and the gliding board for a longitudinal displacement of the plate relative to the gliding board; said sliding means displacing the plate during the sliding phases so that the shoe can shift longitudinally with respect to said first longitudinal position during sporting practice.
  • the shoe is free to move back and forth when the skier meets a hollow or a bump on the track.
  • Damping means attenuate the transmission of these disturbances to the skier's boot.
  • the imbalances of the skier caused by the irregularities of the ground are attenuated.
  • the damping means help the shoe to quickly find a stable central position, which allows the skier to easily find his balance.
  • the attachment of a ski boot according to the invention brings a lot of tolerance for changes of terrain. So when the gliding board passes on small bumps, or sudden variations of flatness of the track, the body of the practitioner does not have to move to keep the balance which is damaged by the slight variations of speed and 'acceleration.
  • the invention also brings a lot of ease and fluidity in the steering of skis because the skier is less sensitive to imperfections of the track.
  • the invention provides a better performance because the slowdowns caused by the imperfections of the track can be stored as energy in the damping means and are subsequently returned to the gliding board.
  • a gliding board is a board on which the user sets one of his shoes to practice a sport where the board slides on snow.
  • the snowboard can be a ski that is part of a pair of alpine skis, cross-country skis, cross-country skis, mini-skis or telemark skis.
  • the invention also relates to a gliding board equipped with a binding according to one of the preceding claims.
  • the figure 1 shows a ski 2 on which is mounted a fastener 1 provided for attaching a boot on the ski 2.
  • the attachment 1 comprises a front retainer 1a commonly called “stop” and a rear retainer 1b commonly called “heel”.
  • the abutment and heels represented at figure 1 are of type "alpine skiing”.
  • the invention is advantageously applicable to the practice of alpine skiing, in the case where the shoe is immobilized vertically relative to the gliding board.
  • a fastener equipped with retaining device for ski touring, ski telemark or cross-country skiing we can consider a fastener equipped with retaining device for ski touring, ski telemark or cross-country skiing.
  • the shoe is not immobilized vertically relative to the gliding board and can, for example, pivot about a vertical axis.
  • the ski 2 comprises a sliding surface 22 which is in contact with the snow when the ski 2 is being used, as well as an upper face 21 which is substantially parallel to the sliding face 22 and on which the binding 1 is fixed.
  • the ski 2 extends along a median longitudinal axis X which passes through the abutment 1a and the heel 1b.
  • the description is oriented by considering that the term “front” corresponds to a direction generally parallel to the axis X and in a direction F1 ranging from the heel 1b to the stop 1a, that is to say a direction directed to the right side of Figures X, while the term “back” corresponds to an opposite direction F2.
  • the term “longitudinal” refers to a direction generally parallel to the X axis.
  • upper and “top” correspond to a direction generally parallel to the X axis and from the sliding face 22 to the upper face 21, that is to say a direction directed towards the upper part of the figures 2 and 6 to 8 , while the terms “lower” and “lower” correspond to an opposite direction.
  • FIGS. 1a, 1b, 1c schematically represent the operation of a ski according to a first embodiment of the invention during a sliding phase, that is to say, even when the skier is down a ski slope.
  • the base 3 is secured to the ski by screw, glue or equivalent means.
  • the sliding means allow the plate 8 to slide longitudinally relative to the ski.
  • Fixing 1 is mounted on the plate.
  • the shoe 100 which is retained by the binding therefore has the possibility of sliding longitudinally relative to the ski.
  • the board is in a neutral intermediate position.
  • This position corresponds for example to the central position recommended by the manufacturer of the ski.
  • This central position is often marked on the ski by a line 23 made on the ski (cf. fig 2 ).
  • This line is located in alignment of the late mixed line 200.
  • a mark 101 corresponding to the middle of the shoe, is also located on the outer face of the shoe. In the neutral position, the mark 101 is in alignment with the central position of the ski, that is to say directly above line 23.
  • the damping means also have the function of returning the plate to a stable central position, called the neutral position (cf. fig 1a ).
  • the figure 2 presents in detail the construction of the fastener according to the first embodiment of the invention.
  • the base 3 is fixed to the ski 2 by means of screws, not shown, which cooperate with fixing holes 20 and 30 formed respectively in the ski 2 and in the base 3.
  • the base 3 is assembled so fixed to the ski 2.
  • the base 3 is made in one rigid piece and comprises a front portion 3a, a rear portion 3b and a central portion 3c which connects the front portion 3a to the rear portion 3b.
  • the two longitudinal edges of the front portion 3a and the rear portion 3b of the base 3 each comprise a strip 3a1, 3a2, 3b1 or 3b2 in excess, parallel to the axis X.
  • the two strips 3a1 and 3a2 or 3b1 and 3b2 of each portion 3a and 3b are separated by a distance approximately equal to the width of the ski 2.
  • a row of holes 33 is formed in each band 3a1, 3a2, 3b1 or 3b2.
  • a rail 4a1, 4a2, 4b1 or 4b2 provided with a row of complementary holes 40 is fixed on each extra thickness 3a1, 3a2, 3b1 or 3b2, by means of screws not shown which cooperate with the holes 40 of the rails 4a1, 4a2, 4b1 or 4b2 and with the holes 33 of the base 3.
  • the rails 4a1, 4a2, 4b1, and 4b2 are fixedly assembled to the base 3 and are fixed relative to the ski 2.
  • the attachment 1 comprises a plate 8 composed of a front portion 8a, a rear portion 8b and two spacers 9c1 and 9c2 which connect the front portion 8a to the rear portion 8b. Screws, not shown, are used to fix the ends of the spacers 9c1 and 9c2 to the parts 8a and 8b of the plate 8. The screws cooperate with holes 80 and 90 formed respectively in the spacers 9c1 and 9c2 and in the parts 8a and 8b. 8b of the plate 8. The spacers 9c1 and 9c2 block the movements of the front portion 8a of the plate 8 relative to the rear portion 8b.
  • the abutment 1a and the heel 1b are fixedly assembled respectively to the front portion 8a and the rear portion 8b of the plate 8, for example by means of screws.
  • Two slides 5a1and 5a2, for example ball rails, are fixedly assembled to the front portion 8a of the plate 8, for example by means of screws not shown.
  • two slides 5b1 and 5b2 are fixedly assembled to the rear portion 8b of the plate 8.
  • the slides 5a1, 5a2, 5b1 and 5b2 are parallel to the axis X and each cooperate with one of the rails 4a1, 4a2, 4b1 and 4b2. Together, they constitute the sliding means of the plate 8 relative to the ski.
  • the plate 8 is movable in translation, along the axis X, in both directions F1 and F2. More specifically, the plate 8 is movable in translation F1 forward, in a direction from the heel 1b to the stop 1a, and rearward F2 in a direction from the stop 1a to the heel 1b.
  • the housing 6 comprises a lower portion 61 forming a hollow box open upwards and a lower portion 62 forming a hollow box open downwards, that is to say towards the lower part 61.
  • Walls 61a and 61b perpendicular to the X axis respectively delimit the longitudinal front and rear ends of the lower portion 61 of the casing 6.
  • walls 62a and 62b perpendicular to the X axis respectively delimit the longitudinal ends front and rear of the upper part 62 of the housing 6.
  • Each portion 61 and 62 of the housing 6 also comprises a bottom 61c or 62c and two longitudinal side walls 61d or 62d.
  • a compression spring 7 is placed inside the housing 6.
  • the spring 7 has a free length L7, when it is not subjected to any external mechanical action measured between a longitudinal front end 7a of the spring 7 and a rear longitudinal end 7b of the spring 7.
  • the turns of the spring 7 have an outer diameter D7.
  • a length L61 of the internal volume of the lower part 61 of the housing 6, measured parallel to the axis X, between the walls 61a and 61b, is equal to the length L62 of the internal volume of the lower portion 62 of the housing 6, measured in parallel. at the X axis, between the walls 62a and 62b.
  • the length L7 of the spring 7 is equal to the lengths L61 and L62 of the housing 6.
  • the depth P61 of the interior volume of the lower portion 61 of the housing 6, measured perpendicularly to the sliding face 22 of the ski 2, is equal to the depth P62 of the interior of the upper portion 62 of the housing 6.
  • the outer diameter D7 of the turns of the spring 7 is equal to the sum of the depths P61 and P62.
  • the width of the internal volume of each portion 61a and 61b of the housing 6 is equal to the diameter D7 of the turns of the spring 7.
  • the spring 7 is thus confined in the housing 6 and is flush with the walls 61a, 61b, 62a and 62b of the housing 6, at its ends 7a and 7b. It also outcrops the bottoms 61c and 62c up and down, and the side walls 61d and 62d on the sides.
  • the lower half of the spring 7 is housed in the lower part 61 of the casing 6.
  • the upper half of the spring 7 is housed in the upper part 62 of the casing 6 and protrudes outside the lower part 61 of the casing 6.
  • the lower portion 61 is fixedly connected to the base 3.
  • the rear wall 61b of the lower portion 61 of the housing 6 is equipped with a finger 61e which cooperates with a hook 34 which protrudes from the central portion 3c of the base 3.
  • the base 3 also comprises a stop 35 separated from the hook 34 by a distance equal to a total length 61 of the lower portion 61 of the housing 6, measured between the faces of the walls 61a and 61b turned to the opposite of each other.
  • the finger 61b is slid into the hook 34 of the base, keeping the lower portion 61 of the housing 6 inclined relative to the axis X. Then, the front end 61a of the lower portion 61 of the housing 6 is folded so as to position the front wall 61a against the abutment 35 of the base 3.
  • the central portion 3c of the base 3 has a rectangular slot 37 whose dimensions correspond to those of the bottom 61c of the lower portion 61 of the housing 6, so that when the lower portion 61 of the housing 6 is assembled to the base 3 the bottom 61c of the lower part 61 of the housing 6 is in contact with the upper face 21 of the ski 2.
  • the upper portion 62 of the housing 6 is fixedly connected to the plate 8.
  • the bottom 61c is extended forward by a tab which has a hole 62e .
  • a screw, not shown, goes to through the hole 61e and through a hole 81 formed on a leg which extends the front portion 8a of the plate 8 rearwardly.
  • the upper portion 62 of the housing 6 is movable in translation, along the axis X, relative to the lower portion 61.
  • the upper portion 62 of the housing 6 follows the same movements as the plate 8 and the lower portion 61 of the housing 6 remains stationary relative to the base 3 and the ski 2.
  • the upper face 21 of the ski 2 has a middle line 23 perpendicular to the axis X which materializes the middle of the ski 2, or rather the middle of the side line.
  • the center line 23 constitutes a reference mark for the positioning of the middle of the boot with respect to the ski 2, along the axis X.
  • the central portion 3c of the base 3 comprises a slider 36 which materializes the middle of the base 3. The slider 36 allows the operator who mounts the binding 1 on the ski 2 to align the middle of the binding 1 with the center line 23.
  • the center line 23 is not located exactly in the middle of the ski 2 but is slightly shifted towards the rear. According to the sport of gliding, the position of the median line 23 varies. For example, in free-style skiing, the center line 23 is generally shifted forward of the ski 2 relative to its position for a multi-purpose ski. The position of this line 23 also depends on the dimension lines.
  • the attachment 1 By default, when no external mechanical action acts on the ski 2 and on the attachment 1, the attachment 1 is in a central position, represented in FIGS. figures 3 and 6 , in which the plate 8 and the middle of the shoe are aligned with the center line 23 of the ski 2.
  • the spring 7 tends to maintain the attachment 1 by default in the central position.
  • the inertia of the skier causes the plate 8 forward F1 relative to the base 3 and the ski 2 and the slides 5a1, 5a2 , 5b1, 5b2 slide along the rails 4a1, 4a2, 4b1 and 4b2.
  • the upper portion 62 of the housing 6 slides relative to the lower portion 61 and the spring 7 is compressed, thereby damping the forward or backward movement of the plate 8.
  • the central position is intermediate with respect to the maximum positions of advance and recoil.
  • the position of the plate 8 relative to the base 3 is located between, on the one hand, the position of the plate 8 in the position of maximum advance of the figures 4 and 7 and, on the other hand, the position of the plate 8 in the maximum retracted position of FIGS. 5 and 8.
  • the plate can also move back and forth depending on the steering of the gliding board.
  • the turntable moves forward and the damping means store energy. The restitution of this energy will then have the effect of moving the platinum backwards beyond the central position.
  • the skier will be less unbalanced by the decelerations and accelerations to which he is subjected.
  • the stiffness of the spring 7 may be chosen according to the weight of the skier.
  • the return force of the spring 7 varies linearly as a function of the displacement of the plate 8.
  • the spring 7 and the housing 6 constitute a damping member of the longitudinal movement of the plate 8.
  • the spring 7 and the housing 6 may be replaced by another damping member.
  • it may be a hydraulic damper.
  • the damping member may include a damper whose return force varies linearly as a function of the speed of the plate 8.
  • the maximum travel of the displacement of the plate 8 relative to the base 3 is equal to the distance between the front stop 64a of the rear stop 64b to which the distance separating the front and rear protuberances formed under the plate 8 is subtracted.
  • the displacement travel is between 20 mm and 140 mm, preferably between 30 mm and 100 mm.
  • the total maximum stroke is substantially equal to 80 mm. From the center position, the deck can move 40mm forward and 40mm rearward.
  • the gliding board is a ski intended to be used in pairs.
  • it may be a snowboard, a monoski or other type of gliding board.
  • the front portion 8a of the plate 8 is connected to the rear portion 8b by a single spacer.
  • the plate 8 is in one piece.
  • FIGs 9a and 9b schematically illustrate a second embodiment of the invention the plate 8 carrying the fasteners has the ability to slide freely only towards the front of the ski. When it is not subjected to a force directed forward, it is in its equilibrium position which corresponds to the position recommended by the ski manufacturer ( Fig. 9a ).
  • a gliding board equipped with such a binding will have a behavior that facilitates its entry into the curve.
  • the base 3 is positioned on the ski so that it is the most advanced position of the plate which constitutes the stable equilibrium position. In this case, the deck can only slide backwards. A gliding board equipped, will tend to accelerate the exit of the turn.
  • the characteristics of the different variants can be combined with each other, at least partially.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Description

La présente invention concerne la fixation d'une chaussure sur une planche de glisse. En particulier, la présente invention concerne un dispositif d'interface entre les moyens de fixation de la chaussure et la planche de glisse ainsi qu'une planche de glisse comprenant un tel dispositif d'interface.The present invention relates to the attachment of a shoe on a gliding board. In particular, the present invention relates to an interface device between the attachment means of the shoe and the gliding board and a gliding board comprising such an interface device.

La présente invention concerne plus particulièrement la pratique du ski alpin, pratique dans laquelle le skieur descend des terrains très pentus à vitesse élevée en ayant chacun de ses pieds solidaires d'une planche de glisse indépendante. Dans la pratique du ski alpin, les chaussures et dispositifs de fixation des chaussures aux planches de glisse sont configurés de telle sorte que l'avant et l'arrière de la chaussure sont attachés à la planche de glisse et sensiblement immobilisés verticalement par rapport à celle-ci.The present invention relates more particularly to the practice of alpine skiing, a practice in which the skier descends very steep terrain at high speed having each of his feet integral with an independent gliding board. In the practice of alpine skiing, the shoes and devices for attaching the shoes to the gliding boards are configured such that the front and the back of the boot are attached to the gliding board and substantially immobilized vertically with respect to that -this.

La pratique de la glisse sur neige est déjà relativement ancienne et de nombreux produits ont été développés pour rendre cette pratique toujours plus plaisante, plus performante ou plus abordable. De nouvelles glisses apparues plus récemment, ont modifiées quelque peu les modalités mais peu ont fondamentalement remis en cause le principe de la fixation des chaussures de l'utilisateur sur la planche de glisse. Dans le but d'améliorer la sécurité des pratiquants, il a certes été développé des fixations dites "de sécurité" qui prévoient une désolidarisation de la chaussure et de la planche de glisse en cas de chute. Cependant, les dispositifs connus de solidarisation d'une chaussure à une planche de glisse ne sont pas optimaux et leur utilisation est source d'inconfort pour les utilisateurs.The practice of sliding on snow is already relatively old and many products have been developed to make this practice always more pleasant, more efficient or more affordable. New gliding appeared more recently, have modified some modalities but few have fundamentally questioned the principle of fixing the shoes of the user on the snowboard. In order to improve the safety of the practitioners, it has certainly been developed so-called "safety" fasteners that provide for a separation of the shoe and the gliding board in case of a fall. However, the known devices for securing a shoe to a gliding board are not optimal and their use is a source of discomfort for users.

Une des sources d'inconfort pour les utilisateurs et en particulier pour les pratiquants de ski alpin se produit à chaque virage. A partir d'une position où il descend droit dans la pente, le skieur subit une décélération lorsqu'il déclenche un virage. Mais l'inertie de son corps à tendance à le déséquilibrer vers l'avant. Inversement, en sortie de virage, l'accélération des skis à tendance à le déséquilibrer vers l'arrière. Il doit sans arrêt se mobiliser pour contrer ses forces qui le déséquilibrent.One of the sources of discomfort for users and especially for alpine skiers occurs at every turn. From a position where it descends right down the slope, the skier undergoes a deceleration when he triggers a turn. But the inertia of his body tends to unbalance him forward. Conversely, at the end of the turn, the acceleration of the skis tends to unbalance it towards the rear. He must constantly mobilize to counteract his forces that unbalance him.

Les moyens de fixation d'une chaussure sur une planche de glisse comprend généralement au moins un dispositif de retenue avant appelé « butée ». C'est le cas notamment pour toute les pratiques de ski, qu'il s'agisse de ski alpin, de ski de fond de ski de randonnée et même de ski télémark. Dans le cas du ski alpin, les moyens de fixation comprennent également un dispositif de retenue arrière appelé « talonnière ». La chaussure s'intercale entre la butée et la talonnière, ces éléments pouvant être fixés sur une embase commune ou non, qu'on appelle également interface. Ainsi, l'action conjointe de ces deux dispositifs de retenue permet de solidariser longitudinalement la chaussure avec la planche de glisse. Pour bloquer le déplacement de la chaussure selon une direction perpendiculaire à la semelle de la planche de glisse et globalement verticale lors de l'utilisation de la planche de glisse, la butée et la talonnière sont équipées chacune de moyens d'arrêt agissant sur la chaussure.The attachment means of a boot on a gliding board generally comprises at least one front retainer called "stop". This is particularly the case for all ski practices, be it downhill skiing, cross-country ski touring and even telemark skiing. In the case of alpine skiing, the attachment means also comprise a rear retaining device called "heel". The shoe is inserted between the stop and the heel, these elements can be fixed on a common base or not, which is also called interface. Thus, the joint action of these two retaining devices makes it possible to longitudinally fasten the boot with the gliding board. To block the movement of the shoe in a direction perpendicular to the sole of the gliding board and generally vertical when using the board sliding, the stop and the heel are each equipped with stop means acting on the shoe.

L'embase sur laquelle la butée et la talonnière sont fixées est généralement fixe par rapport à la planche de glisse, de sorte que la chaussure est maintenue fixement sur la planche de glisse. Dans le cas où butée et talonnière sont fixées sur une embase commune, on peut prévoir un mouvement relatif limité entre l'embase et le ski pour s'assure que l'embase ne gêne pas la flexion du ski. En général, l'une des extrémités de l'embase, ou le centre de celle-ci, est solidement fixée au ski sans mouvement relatif possible par rapport à la portion du ski sur laquelle elle est fixée tandis que les extrémités opposées peuvent elles être susceptibles de glisser par rapport au ski lorsque celui-ci ski fléchit. Cette disposition fait que l'embase ne gêne pas la flexion du ski, et on dispose d'un ski pour lequel le pied du skieur reste toujours fixe par rapport à celui-ci. Par conséquent, les irrégularités du terrain, si elles sont trop importantes ont tendance à déséquilibrer le skieur car elles sont transmises depuis le ski jusqu'au skieur par l'intermédiaire des fixations.The base on which the stop and the heel is fixed is generally fixed relative to the gliding board, so that the shoe is fixedly fixed on the gliding board. In the case where abutment and heel are fixed on a common base, a limited relative movement can be provided between the base and the ski to ensure that the base does not interfere with the flexion of the ski. In general, one of the ends of the base, or the center thereof, is securely attached to the ski with no relative movement possible relative to the portion of the ski on which it is attached while the opposite ends may be likely to slide in relation to the ski when the ski flexes. This arrangement makes that the base does not interfere with the flexion of the ski, and there is a ski for which the skier's foot is still fixed relative thereto. Therefore, the irregularities of the ground, if they are too important tend to unbalance the skier because they are transmitted from the ski to the skier through the bindings.

US 7 159 891 B1 décrit un all-terrain ski pour simuler des techniques de ski, comprenant des moyens de coulissement et des moyens d'amortissement. US 7,159,891 B1 describes an all-terrain ski to simulate skiing techniques, comprising sliding means and damping means.

WO-A-00/10659 divulgue un ski dont la face supérieure, opposée à la semelle de glisse, est équipée d'une embase qui s'étend sur la majeure partie de la longueur du ski et dont une zone centrale est prévue pour recevoir un dispositif de fixation d'une chaussure. Le ski est équipé d'un rail longitudinal qui forme une glissière avec un canal complémentaire ménagé dans l'embase. Au niveau de la zone centrale de l'embase, l'embase est fixée au ski par des vis. Ainsi, les extrémités de l'embase sont mobiles en translation par rapport au ski, selon la direction longitudinale du ski. Le ski et l'embase sont incurvés selon une direction perpendiculaire à la semelle de glisse du ski, le côté concave étant tourné vers le bas. Les extrémités avant et arrière du ski comportent des butées de limitation du mouvement des extrémités de l'embase par rapport au ski, manoeuvrables entre une position débloquée, dans laquelle la translation des extrémités de l'embase par rapport au ski est autorisée, et une position bloquée, dans laquelle les extrémités de l'embase sont solidarisées de manière fixe au ski. Dans la position bloquée, l'embase augmente la rigidité du ski en flexion longitudinale. Dans la position débloquée, le coulissement des extrémités de l'embase par rapport au ski a pour effet que l'embase ne s'oppose pas à la flexion longitudinale du ski. Toutefois, que l'on soit en position bloquée ou débloquée, le pied du skieur reste immobile par rapport au ski. WO-A-00/10659 discloses a ski whose upper face, opposite to the gliding sole, is equipped with a base which extends over most of the length of the ski and of which a central zone is provided to receive a fixing device of a shoe. The ski is equipped with a longitudinal rail which forms a slideway with a complementary channel formed in the base. At the level of the central zone of the base, the base is fixed to the ski by screws. Thus, the ends of the base are movable in translation relative to the ski, in the longitudinal direction of the ski. The ski and the base are curved in a direction perpendicular to the gliding sole of the ski, the concave side being turned downwards. The front and rear ends of the ski comprise stops for limiting the movement of the ends of the base relative to the ski, operable between an unlocked position, in which the translation of the ends of the base relative to the ski is allowed, and a locked position, in which the ends of the base are secured to the ski in a fixed manner. In the locked position, the base increases the rigidity of the ski in longitudinal flexion. In the unlocked position, the sliding of the ends of the base relative to the ski has the effect that the base does not oppose the longitudinal flexion of the ski. However, whether in the locked or unlocked position, the skier's foot remains motionless relative to the ski.

Pour un ski donné, et une fois les fixations de sécurité montées, la position du pied du skieur par rapport au ski est une donnée figée. En général, les fabricants de skis préconise une position déterminée pour chaque modèle de ski. Cette position est marquée sur le ski par une ligne appelée "point de montage du milieu de chaussure" car la chaussure de ski dispose également en son milieu d'une marque "milieu de chaussure". Lors du montage des fixations de ski, ou lors du réglage de celles-ci par le technicien spécialisé du loueur de ski, on fait rigoureusement correspondre longitudinalement la marque "milieu de chaussure" de la chaussure avec celle du ski.For a given ski, and once the safety bindings mounted, the position of the skier's foot relative to the ski is a fixed data. In general, ski manufacturers advocate a specific position for each ski model. This position is marked on the ski by a line called "mounting point of the middle of shoe" because the ski boot also has in its middle a mark "middle of shoe". When assembling the ski bindings, or when adjusting them by the ski hire technician specialized, it is rigorously correspond longitudinally brand "middle of Shoe "of the shoe with that of the ski.

Parfois, pour une pratique particulière, un utilisateur peut choisir de ne pas respecter la préconisation du fabricant et de monter ses fixations de telle façon que la marque "milieu de chaussure" de la chaussure soit en avant, ou en arrière, par rapport à la marque du ski. Cependant, il n'existe pas de dispositif qui permettent de déplacer les fixations de ski au cours de la pratique de façon à ce que le point de "milieu de chaussure" de la chaussure se déplace longitudinalement par rapport au point de "milieu de chaussure" du ski.Sometimes, for a particular practice, a user may choose not to respect the manufacturer's recommendation and to mount his bindings in such a way that the "middle shoe" mark of the shoe is in front, or behind, of the ski brand. However, there is no device that makes it possible to move the ski bindings during practice so that the "middle shoe" point of the shoe moves longitudinally with respect to the "middle point of the shoe" " ski.

Il existe d'autre part, des moyens amortissant qui sont placés entre l'embase et le skis qui sont sensés atténuer les effets des irrégularités du terrain. Par exemple, on place parfois des plaques de caoutchouc pour jouer ce rôle. Malheureusement, ces moyens amortissant n'ont qu'un effet limité car il agissent selon une direction verticale.On the other hand, there are damping means which are placed between the base and the skis which are supposed to mitigate the effects of the irregularities of the ground. For example, rubber plates are sometimes used to play this role. Unfortunately, these damping means have only a limited effect because they act in a vertical direction.

Il existe par conséquent un besoin d'améliorer la pratique du ski en proposant aux utilisateurs un matériel nouveau qui améliore le comportement, l'efficacité tout en améliorant le confort d'utilisation.There is therefore a need to improve skiing by providing users with new equipment that improves behavior, efficiency and improved comfort.

Ce sont les objectifs que poursuit l'invention. Cette dernière entend notamment remédier aux inconvénients précités en proposant une fixation d'une chaussure sur une planche de glisse permettant d'atténuer les mouvements indésirables du skieur provoqués par les irrégularités du terrain, notamment les aspérités en creux ou en relief.These are the objectives pursued by the invention. The latter intends in particular to remedy the aforementioned drawbacks by proposing a binding of a shoe on a gliding board to mitigate the undesirable movements of the skier caused by the irregularities of the terrain, including bumps in hollow or relief.

A cet effet, l'invention a pour objet une fixation d'une chaussure sur une planche de glisse prévue pour être utilisée au cours d'une pratique sportive incluant des phases de glisse, ladite fixation permettant de fixer la chaussure d'un utilisateur dans une première position longitudinale par rapport à la planche de glisse; ladite fixation étant caractérisée en ce qu'elle comprend: Une platine prévue pour recevoir la chaussure; au moins un dispositif de retenue de la chaussure à la platine; des moyens de coulissement disposés entre la platine et la planche de glisse permettant un déplacement longitudinal de la platine par rapport à la planche de glisse; lesdits moyens de coulissement déplaçant la platine pendant les phases de glisse de manière que la chaussure peut se décaler longitudinalement par rapport ladite première position longitudinale au cours de la pratique sportive.For this purpose, the object of the invention is a binding of a boot on a gliding board intended to be used during a sporting practice including gliding phases, said fastening making it possible to fix the shoe of a user in a a first longitudinal position relative to the gliding board; said fastener being characterized in that it comprises: a plate adapted to receive the boot; at least one device for retaining the boot to the plate; sliding means disposed between the plate and the gliding board for a longitudinal displacement of the plate relative to the gliding board; said sliding means displacing the plate during the sliding phases so that the shoe can shift longitudinally with respect to said first longitudinal position during sporting practice.

Grâce à l'invention, la chaussure est libre de se déplacer d'avant en arrière lorsque le skieur rencontre un creux ou une bosse sur la piste. Des moyens d'amortissement atténuent la transmission de ces perturbations vers la chaussure du skieur. Ainsi, les déséquilibres du skieur provoqués par les irrégularités du terrain sont atténués. Lorsque le terrain redevient régulier, les moyens d'amortissement aident la chaussure à retrouver rapidement une position centrale stable, ce qui permet au skieur de retrouver facilement son équilibre.Thanks to the invention, the shoe is free to move back and forth when the skier meets a hollow or a bump on the track. Damping means attenuate the transmission of these disturbances to the skier's boot. Thus, the imbalances of the skier caused by the irregularities of the ground are attenuated. When the ground becomes regular again, the damping means help the shoe to quickly find a stable central position, which allows the skier to easily find his balance.

La fixation d'une chaussure de ski conforme à l'invention amène beaucoup de tolérance pour les changements de terrain. Ainsi lorsque la planche de glisse passe sur des petites bosses, ou des variations brutales de planéité de la piste, le corps du pratiquant n'a pas à bouger pour garder l'équilibre qui est mis à mal par les légères variations de vitesse et d'accélération.The attachment of a ski boot according to the invention brings a lot of tolerance for changes of terrain. So when the gliding board passes on small bumps, or sudden variations of flatness of the track, the body of the practitioner does not have to move to keep the balance which is damaged by the slight variations of speed and 'acceleration.

L'invention amène également beaucoup de facilité et de fluidité dans le pilotage des skis car le skieur est moins sensible aux imperfections de la piste.The invention also brings a lot of ease and fluidity in the steering of skis because the skier is less sensitive to imperfections of the track.

Enfin, l'invention, apporte une meilleur performance car les ralentissements causées par les imperfections de la piste peuvent être stockés sous forme d'énergie dans les moyens d'amortissement et sont par la suite restitués à la planche de glisse.Finally, the invention provides a better performance because the slowdowns caused by the imperfections of the track can be stored as energy in the damping means and are subsequently returned to the gliding board.

Au sens de la présente invention, une planche de glisse est une planche sur laquelle l'utilisateur fixe une de ses chaussures pour pratiquer un sport où la planche glisse sur de la neige. Selon les pratiques, la planche de glisse peut être un ski faisant partie d'une paire de skis alpin, de skis de randonnée, de skis de fond, de mini-skis ou de skis de télémark.For the purposes of the present invention, a gliding board is a board on which the user sets one of his shoes to practice a sport where the board slides on snow. According to the practices, the snowboard can be a ski that is part of a pair of alpine skis, cross-country skis, cross-country skis, mini-skis or telemark skis.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle fixation peut incorporer une ou plusieurs des caractéristiques techniques suivantes, prises dans toute combinaison techniquement admissible :

  • les moyens de coulissement permettent à la chaussure de se déplacer vers l'avant ou vers l'arrière par rapport à ladite première position longitudinale, ou encore vers l'avant et vers l'arrière;
  • une première butée limite le mouvement vers l'avant de la platine jusqu'à une position d'avance maximale et une deuxième butée limite le mouvement vers l'arrière de la platine jusqu'à une position de recul maximal;
  • les moyens d'amortissement amortissent les mouvements de la platine dans les deux sens et positionnent la platine dans une position stable dans laquelle la platine est située entre la position d'avance maximale et la position de recul maximal;
  • une embase est assemblée de manière fixe à la planche de glisse, ladite embase comporte au moins un rail; tandis que la platine comporte au moins une glissière qui coopère avec ledit rail, un dispositif de retenue avant et un dispositif de retenue arrière étant fixés à la platine;
  • La course du déplacement de la chaussure entre une position de recul maximal et une position d'avance maximale, mesurée parallèlement au rail entre la première butée et la seconde butée, est supérieure à 20 mm, de préférence supérieure à 30 mm. Dans un mode de réalisation préféré, la course est supérieure à 40 mm.
  • L'organe d'amortissement comprend un ressort de compression disposé dans un boîtier comprenant une partie inférieure assemblée de manière fixe à l'embase et une partie supérieure assemblée de manière fixe à la platine et en ce que la partie supérieure est mobile en translation, parallèlement au rail, par rapport à la partie inférieure.
  • Les extrémités longitudinales de chaque partie du boîtier sont formées par une paroi perpendiculaire aux rails et la longueur entre les parois de chaque partie est égale la longueur libre du ressort.
  • La platine comprend une partie avant et une partie arrière assemblées entre elles de manière fixe par au moins une entretoise.
  • L'embase comprend une partie avant et une partie arrière dont les bords longitudinaux sont équipés chacun d'un rail, chaque rail coopérant avec une glissière assemblée de manière fixe à la partie avant ou la partie arrière de la platine.
  • Les glissières sont des glissières à billes ou comportant un matériau à faible coefficient de frottement comme par exemple du téflon.
  • Chaque rail est parallèle à un axe longitudinal de la planche de glisse.
According to advantageous but non-mandatory aspects of the invention, such a fastener may incorporate one or more of the following technical characteristics, taken in any technically permissible combination:
  • the sliding means allow the shoe to move forwards or backwards relative to said first longitudinal position, or forwards and backwards;
  • a first stop limits the forward movement of the plate to a maximum advance position and a second stop limits the rearward movement of the plate to a maximum retracted position;
  • the damping means dampen the movements of the plate in both directions and position the plate in a stable position in which the plate is located between the maximum advance position and the maximum retracted position;
  • a base is fixedly assembled to the gliding board, said base comprises at least one rail; while the plate comprises at least one slide which cooperates with said rail, a front retainer and a rear retainer being fixed to the plate;
  • The travel of the shoe between a maximum backward position and a maximum advance position, measured parallel to the rail between the first stop and the second stop, is greater than 20 mm, preferably greater than 30 mm. In a preferred embodiment, the stroke is greater than 40 mm.
  • The damping member comprises a compression spring disposed in a housing comprising a lower portion fixedly assembled to the base and an upper portion fixedly connected to the plate and in that the upper part is movable in translation, parallel to the rail, with respect to the lower part.
  • The longitudinal ends of each portion of the housing are formed by a wall perpendicular to the rails and the length between the walls of each portion is equal to the free length of the spring.
  • The plate comprises a front portion and a rear portion assembled together in a fixed manner by at least one spacer.
  • The base comprises a front portion and a rear portion whose longitudinal edges are each equipped with a rail, each rail cooperating with a slide fixedly assembled to the front portion or the rear portion of the plate.
  • The slides are slide rails or having a low friction material such as teflon.
  • Each rail is parallel to a longitudinal axis of the gliding board.

L'invention concerne également une planche de glisse équipée d'une fixation selon l'une des revendications précédentes.The invention also relates to a gliding board equipped with a binding according to one of the preceding claims.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaitront plus clairement à la lumière de la description qui va suivre d'un ski équipé d'une fixation de chaussure conforme à l'invention, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de dessus d'une planche de glisse équipé d'une fixation de chaussure selon un premier mode de réalisation de l'invention ;
  • les figures 1a, 1b, 1c sont des vues latérales schématiques du ski de la figure 1.
  • la figure 2 est une vue partielle en perspective éclatée de la fixation de la figure 1, montée sur le ski ;
  • les figures 3 à 5 sont des vues de dessus partielles de la fixation de la figure 1, respectivement dans une position centrale, une position d'avance maximale et une position de recul maximal ;
  • les figures 6 à 8 sont des coupes longitudinales partielles de la fixation selon l'axe X à la figure 1, respectivement dans la position centrale, dans la position d'avance maximale et dans la position de recul maximal.
  • les figures 9a et 9b sont des vue latérales schématiques d'un ski selon un deuxième mode de réalisation de l'invention.
The invention will be better understood and other advantages of it will appear more clearly in the light of the following description of a ski equipped with a shoe attachment according to the invention, given solely as a example and with reference to the accompanying drawings in which:
  • the figure 1 is a top view of a gliding board equipped with a shoe attachment according to a first embodiment of the invention;
  • the Figures 1a, 1b, 1c are schematic side views of the ski from the figure 1 .
  • the figure 2 is a partial exploded perspective view of the fixation of the figure 1 , riding on the ski;
  • the Figures 3 to 5 are partial top views of the fixation of the figure 1 in a central position, a maximum advance position and a maximum backward position respectively;
  • the Figures 6 to 8 are partial longitudinal sections of the fixation along the X axis to the figure 1 respectively in the central position, in the maximum advance position and in the maximum backward position.
  • the Figures 9a and 9b are schematic side views of a ski according to a second embodiment of the invention.

La figure 1 montre un ski 2 sur lequel est montée une fixation 1 prévue pour fixer une chaussure sur le ski 2. La fixation 1 comprend un dispositif de retenue avant 1a communément appelé « butée » et un dispositif de retenue arrière 1b communément appelé « talonnière ». Les butée et talonnières représentées à la figure 1, sont de types "ski alpin".The figure 1 shows a ski 2 on which is mounted a fastener 1 provided for attaching a boot on the ski 2. The attachment 1 comprises a front retainer 1a commonly called "stop" and a rear retainer 1b commonly called "heel". The abutment and heels represented at figure 1 , are of type "alpine skiing".

L'invention s'applique avantageusement pour la pratique du ski alpin, dans le cas où la chaussure est immobilisée verticalement par rapport à la planche de glisse. On peut cependant envisager une fixation équipée de dispositif de retenue pour le ski de randonnée, le ski télémark ou encore le ski de fond. Dans ces pratiques, la chaussure n'est pas immobilisée verticalement par rapport à la planche de glisse et peut, par exemple, pivoter autour d'un axe vertical.The invention is advantageously applicable to the practice of alpine skiing, in the case where the shoe is immobilized vertically relative to the gliding board. However, we can consider a fastener equipped with retaining device for ski touring, ski telemark or cross-country skiing. In these practices, the shoe is not immobilized vertically relative to the gliding board and can, for example, pivot about a vertical axis.

Le ski 2 comporte une face de glisse 22 qui est contact avec la neige lors de l'utilisation du ski 2, ainsi qu'une face supérieure 21 qui est sensiblement parallèle à la face de glisse 22 et sur laquelle est fixée la fixation 1. Le ski 2 s'étend le long d'un axe longitudinal médian X qui passe par la butée 1a et par la talonnière 1b.The ski 2 comprises a sliding surface 22 which is in contact with the snow when the ski 2 is being used, as well as an upper face 21 which is substantially parallel to the sliding face 22 and on which the binding 1 is fixed. The ski 2 extends along a median longitudinal axis X which passes through the abutment 1a and the heel 1b.

Par commodité, la description est orientée en considérant que le terme « avant » correspond à une direction globalement parallèle à l'axe X et dans un sens F1 allant de la talonnière 1b vers la butée 1a, c'est-à-dire une direction dirigée vers la partie droite des figures X, tandis que le terme « arrière » correspond à un sens F2 opposé. Le terme « longitudinal » se rapporte à une direction globalement parallèle à l'axe X.For convenience, the description is oriented by considering that the term "front" corresponds to a direction generally parallel to the axis X and in a direction F1 ranging from the heel 1b to the stop 1a, that is to say a direction directed to the right side of Figures X, while the term "back" corresponds to an opposite direction F2. The term "longitudinal" refers to a direction generally parallel to the X axis.

Les termes "supérieur" et "haut" correspondent à une direction globalement parallèle à l'axe X et allant de la face de glisse 22 vers la face supérieure 21, c'est-à-dire une direction dirigée vers la partie haute des figures 2 et 6 à 8, tandis que les termes "inférieur" et "bas" correspondent à une direction opposée.The terms "upper" and "top" correspond to a direction generally parallel to the X axis and from the sliding face 22 to the upper face 21, that is to say a direction directed towards the upper part of the figures 2 and 6 to 8 , while the terms "lower" and "lower" correspond to an opposite direction.

Les figures 1a, 1b, 1c représentent schématiquement le fonctionnement d'un ski selon un premier mode de réalisation de l'invention au cours d'une phase de glisse, c'est-à-dire alors même que le skieur est en train de dévaler une piste de ski.The Figures 1a, 1b, 1c schematically represent the operation of a ski according to a first embodiment of the invention during a sliding phase, that is to say, even when the skier is down a ski slope.

L'embase 3 est rendue solidaire du ski par vis, colle ou tout moyen équivalent. Les moyens de coulissement permettent à la platine 8 de coulisser longitudinalement par rapport au ski. La fixation 1 est montée sur la platine. La chaussure 100 qui est retenue par la fixation a donc la possibilité de coulisser longitudinalement par rapport au ski.The base 3 is secured to the ski by screw, glue or equivalent means. The sliding means allow the plate 8 to slide longitudinally relative to the ski. Fixing 1 is mounted on the plate. The shoe 100 which is retained by the binding therefore has the possibility of sliding longitudinally relative to the ski.

A la figure 1a, la platine se trouve dans une position intermédiaire neutre. Cette position correspond par exemple à la position centrale préconisée par le fabricant du ski. Cette position centrale est souvent repérée sur le ski par une ligne 23 faite sur le ski (cf. fig 2). Cette ligne est située dans alignement du trait mixte fin 200. Une marque 101, correspondant au milieu de la chaussure, est également repérée sur la face extérieure de la chaussure. Dans la position neutre, la marque 101 se trouve dans l'alignement de la position centrale du ski, c'est-à-dire à l'aplomb de la ligne 23.To the figure 1a , the board is in a neutral intermediate position. This position corresponds for example to the central position recommended by the manufacturer of the ski. This central position is often marked on the ski by a line 23 made on the ski (cf. fig 2 ). This line is located in alignment of the late mixed line 200. A mark 101, corresponding to the middle of the shoe, is also located on the outer face of the shoe. In the neutral position, the mark 101 is in alignment with the central position of the ski, that is to say directly above line 23.

A la figure 1b, la platine s'est déplacée vers l'avant jusqu'à venir au contact d'une première butée 64a. la chaussure est alors décalée vers l'avant par rapport à la ligne 23.To the figure 1b , the plate has moved forward until it comes into contact with a first stop 64a. the shoe is then shifted forward with respect to line 23.

A la figure 1c, la platine s'est déplacée vers l'arrière jusqu'à venir au contact d'une deuxième butée 64b, la chaussure est alors décalée vers l'arrière par rapport à la ligne 23.To the figure 1c , the platen has moved rearwardly to come into contact with a second stop 64b, the shoe is then shifted rearwardly with respect to the line 23.

Des moyens d'amortissement placés entre l'embase 3 et la platine 8, rendent les mouvements vers l'arrière et vers l'avant moins brusques de façon à ne pas déséquilibrer le skieur. Les moyens d'amortissements ont également pour fonction de ramener la platine dans une position centrale stable, dite position neutre (cf.fig 1a).Damping means placed between the base 3 and the plate 8, make the movements backwards and forwards less abrupt so as not to unbalance the skier. The damping means also have the function of returning the plate to a stable central position, called the neutral position (cf. fig 1a ).

La figure 2 présente de manière détaillée la construction de la fixation selon le premier mode de réalisation de l'invention. L'embase 3 est fixée au ski 2 au moyen de vis, non représentées, qui coopèrent avec des trous de fixation 20 et 30 ménagés respectivement dans le ski 2 et dans l'embase 3. Ainsi, l'embase 3 est assemblée de manière fixe au ski 2.The figure 2 presents in detail the construction of the fastener according to the first embodiment of the invention. The base 3 is fixed to the ski 2 by means of screws, not shown, which cooperate with fixing holes 20 and 30 formed respectively in the ski 2 and in the base 3. Thus, the base 3 is assembled so fixed to the ski 2.

L'embase 3 est fabriquée en une seule pièce rigide et comprend une partie avant 3a, une partie arrière 3b et une partie centrale 3c qui relie la partie avant 3a à la partie arrière 3b.The base 3 is made in one rigid piece and comprises a front portion 3a, a rear portion 3b and a central portion 3c which connects the front portion 3a to the rear portion 3b.

Les deux bords longitudinaux de la partie avant 3a et de la partie arrière 3b de l'embase 3 comportent chacun une bande 3a1, 3a2, 3b1 ou 3b2 en surépaisseur, parallèle à l'axe X. Les deux bandes 3a1 et 3a2 ou 3b1 et 3b2 de chaque partie 3a et 3b sont écartées d'une distance environ égale à la largeur du ski 2. Une rangée de trous 33 est réalisée dans chaque bande 3a1, 3a2, 3b1 ou 3b2. Un rail 4a1, 4a2, 4b1 ou 4b2 pourvu d'une rangée de trous 40 complémentaires est fixé sur chaque surépaisseur 3a1, 3a2, 3b1 ou 3b2, au moyen de vis non représentées qui coopèrent avec les trous 40 des rails 4a1, 4a2, 4b1 ou 4b2 et avec les trous 33 de l'embase 3. Ainsi, les rails 4a1, 4a2, 4b1, et 4b2 sont assemblés de manière fixe à l'embase 3 et sont fixes par rapport au ski 2.The two longitudinal edges of the front portion 3a and the rear portion 3b of the base 3 each comprise a strip 3a1, 3a2, 3b1 or 3b2 in excess, parallel to the axis X. The two strips 3a1 and 3a2 or 3b1 and 3b2 of each portion 3a and 3b are separated by a distance approximately equal to the width of the ski 2. A row of holes 33 is formed in each band 3a1, 3a2, 3b1 or 3b2. A rail 4a1, 4a2, 4b1 or 4b2 provided with a row of complementary holes 40 is fixed on each extra thickness 3a1, 3a2, 3b1 or 3b2, by means of screws not shown which cooperate with the holes 40 of the rails 4a1, 4a2, 4b1 or 4b2 and with the holes 33 of the base 3. Thus, the rails 4a1, 4a2, 4b1, and 4b2 are fixedly assembled to the base 3 and are fixed relative to the ski 2.

La fixation 1 comprend une platine 8 composée d'une partie avant 8a, d'une partie arrière 8b et de deux entretoises 9c1 et 9c2 qui relient la partie avant 8a à la partie arrière 8b. Des vis, non représentées, sont utilisées pour fixer les extrémités des entretoises 9c1 et 9c2 aux parties 8a et 8b de la platine 8. Les vis coopèrent avec des trous 80 et 90 ménagés respectivement dans les entretoises 9c1 et 9c2 et dans les parties 8a et 8b de la platine 8. Les entretoises 9c1 et 9c2 bloquent les mouvements de la partie avant 8a de la platine 8 par rapport à la partie arrière 8b.The attachment 1 comprises a plate 8 composed of a front portion 8a, a rear portion 8b and two spacers 9c1 and 9c2 which connect the front portion 8a to the rear portion 8b. Screws, not shown, are used to fix the ends of the spacers 9c1 and 9c2 to the parts 8a and 8b of the plate 8. The screws cooperate with holes 80 and 90 formed respectively in the spacers 9c1 and 9c2 and in the parts 8a and 8b. 8b of the plate 8. The spacers 9c1 and 9c2 block the movements of the front portion 8a of the plate 8 relative to the rear portion 8b.

La butée 1a et la talonnière 1b sont assemblées de manière fixe respectivement à la partie avant 8a et à la partie arrière 8b de la platine 8, par exemple au moyen de vis.The abutment 1a and the heel 1b are fixedly assembled respectively to the front portion 8a and the rear portion 8b of the plate 8, for example by means of screws.

Deux glissières 5a1et 5a2, par exemple des glissières à billes, sont assemblées de manière fixe à la partie avant 8a de la platine 8, par exemple au moyen de vis non représentées. De même, deux glissières 5b1 et 5b2 sont assemblées de manière fixe à la partie arrière 8b de la platine 8. Les glissières 5a1, 5a2, 5b1 et 5b2 sont parallèles à l'axe X et coopèrent chacune avec l'un des rails 4a1, 4a2, 4b1 et 4b2. Ensemble, il constituent les moyens de coulissement de la platine 8 par rapport au ski.Two slides 5a1and 5a2, for example ball rails, are fixedly assembled to the front portion 8a of the plate 8, for example by means of screws not shown. Similarly, two slides 5b1 and 5b2 are fixedly assembled to the rear portion 8b of the plate 8. The slides 5a1, 5a2, 5b1 and 5b2 are parallel to the axis X and each cooperate with one of the rails 4a1, 4a2, 4b1 and 4b2. Together, they constitute the sliding means of the plate 8 relative to the ski.

La platine 8 est donc mobile en translation, le long de l'axe X, dans les deux sens F1 et F2. Plus précisément, la platine 8 est mobile en translation vers l'avant F1, dans un sens allant de la talonnière 1b vers la butée 1a, et vers l'arrière F2, dans un sens allant de la butée 1a vers la talonnière 1b.The plate 8 is movable in translation, along the axis X, in both directions F1 and F2. More specifically, the plate 8 is movable in translation F1 forward, in a direction from the heel 1b to the stop 1a, and rearward F2 in a direction from the stop 1a to the heel 1b.

Un boîtier 6, de forme allongée et aligné avec l'axe X, est intercalé entre l'embase 3 et la platine 8. Le boîtier 6 comprend une partie inférieure 61 formant un caisson creux ouvert vers le haut et une partie inférieure 62 formant un caisson creux ouvert vers le bas, c'est-à-dire vers la partie inférieure 61.A housing 6, of elongated shape and aligned with the axis X, is interposed between the base 3 and the plate 8. The housing 6 comprises a lower portion 61 forming a hollow box open upwards and a lower portion 62 forming a hollow box open downwards, that is to say towards the lower part 61.

Des parois 61a et 61b perpendiculaires à l'axe X délimitent respectivement les extrémités longitudinales avant et arrière de la partie inférieure 61 du boîtier 6. De même, des parois 62a et 62b perpendiculaires à l'axe X délimitent respectivement les extrémités longitudinales avant et arrière de la partie supérieure 62 du boîtier 6.Walls 61a and 61b perpendicular to the X axis respectively delimit the longitudinal front and rear ends of the lower portion 61 of the casing 6. Likewise, walls 62a and 62b perpendicular to the X axis respectively delimit the longitudinal ends front and rear of the upper part 62 of the housing 6.

Chaque partie 61 et 62 du boîtier 6 comprend également un fond 61c ou 62c et deux parois latérales longitudinales 61d ou 62d.Each portion 61 and 62 of the housing 6 also comprises a bottom 61c or 62c and two longitudinal side walls 61d or 62d.

Un ressort de compression 7 est placé à l'intérieur du boîtier 6. Le ressort 7 a une longueur libre à vide L7, lorsqu'il n'est soumis à aucune action mécanique extérieure mesurée entre une extrémité longitudinale avant 7a du ressort 7 et une extrémité longitudinale arrière 7b du ressort 7. Les spires du ressort 7 ont un diamètre extérieur D7.A compression spring 7 is placed inside the housing 6. The spring 7 has a free length L7, when it is not subjected to any external mechanical action measured between a longitudinal front end 7a of the spring 7 and a rear longitudinal end 7b of the spring 7. The turns of the spring 7 have an outer diameter D7.

Une longueur L61 du volume intérieur de la partie inférieure 61 du boitier 6, mesurée parallèlement à l'axe X, entre les parois 61a et 61b, est égale à la longueur L62 du volume intérieur de la partie inférieure 62 du boîtier 6, mesurée parallèlement à l'axe X, entre les parois 62a et 62b. La longueur L7 du ressort 7 est égale aux longueurs L61 et L62 du boîtier 6.A length L61 of the internal volume of the lower part 61 of the housing 6, measured parallel to the axis X, between the walls 61a and 61b, is equal to the length L62 of the internal volume of the lower portion 62 of the housing 6, measured in parallel. at the X axis, between the walls 62a and 62b. The length L7 of the spring 7 is equal to the lengths L61 and L62 of the housing 6.

La profondeur P61 du volume intérieur de la partie inférieure 61 du boitier 6, mesurée perpendiculairement à la face de glisse 22 du ski 2, est égale à la profondeur P62 du volume intérieur de la partie supérieure 62 du boîtier 6. Le diamètre extérieur D7 des spires du ressort 7 est égal à la somme des profondeurs P61 et P62. De plus, la largeur du volume intérieur de chaque partie 61a et 61b du boîtier 6 est égale au diamètre D7 des spires du ressort 7.The depth P61 of the interior volume of the lower portion 61 of the housing 6, measured perpendicularly to the sliding face 22 of the ski 2, is equal to the depth P62 of the interior of the upper portion 62 of the housing 6. The outer diameter D7 of the turns of the spring 7 is equal to the sum of the depths P61 and P62. In addition, the width of the internal volume of each portion 61a and 61b of the housing 6 is equal to the diameter D7 of the turns of the spring 7.

Le ressort 7 est ainsi confiné dans le boîtier 6 et affleure les parois 61a, 61b, 62a et 62b du boîtier 6, au niveau de ses extrémités 7a et 7b. Il affleure également les fonds 61c et 62c vers le haut et vers le bas, ainsi que les parois latérales 61d et 62d sur les côtés.The spring 7 is thus confined in the housing 6 and is flush with the walls 61a, 61b, 62a and 62b of the housing 6, at its ends 7a and 7b. It also outcrops the bottoms 61c and 62c up and down, and the side walls 61d and 62d on the sides.

La moitié inférieure du ressort 7 est logée dans la partie inférieure 61 du boîtier 6. La moitié supérieure du ressort 7 est logée dans la partie supérieure 62 du boîtier 6 et dépasse à l'extérieur de la partie inférieure 61 du boîtier 6.The lower half of the spring 7 is housed in the lower part 61 of the casing 6. The upper half of the spring 7 is housed in the upper part 62 of the casing 6 and protrudes outside the lower part 61 of the casing 6.

La partie inférieure 61 est assemblée de manière fixe à l'embase 3. La paroi arrière 61b de la partie inférieure 61 du boîtier 6 est équipée d'un doigt 61e qui coopère avec un crochet 34 qui fait saillie à partir de la partie centrale 3c de l'embase 3. L'embase 3 comporte également une butée 35 séparée du crochet 34 par une distance égale à une longueur totale L'61 de la partie inférieure 61 du boîtier 6, mesurée entre les faces des parois 61a et 61b tournées à l'opposé l'une de l'autre.The lower portion 61 is fixedly connected to the base 3. The rear wall 61b of the lower portion 61 of the housing 6 is equipped with a finger 61e which cooperates with a hook 34 which protrudes from the central portion 3c of the base 3. The base 3 also comprises a stop 35 separated from the hook 34 by a distance equal to a total length 61 of the lower portion 61 of the housing 6, measured between the faces of the walls 61a and 61b turned to the opposite of each other.

Lors de l'assemblage du boîtier 6 avec l'embase 3, le doigt 61b est glissé dans le crochet 34 de l'embase, en maintenant la partie inférieure 61 du boîtier 6 inclinée par rapport à l'axe X. Puis, l'extrémité avant 61a de la partie inférieure 61 du boîtier 6 est rabattue de manière à positionner la paroi avant 61a contre la butée 35 de l'embase 3.When assembling the housing 6 with the base 3, the finger 61b is slid into the hook 34 of the base, keeping the lower portion 61 of the housing 6 inclined relative to the axis X. Then, the front end 61a of the lower portion 61 of the housing 6 is folded so as to position the front wall 61a against the abutment 35 of the base 3.

La partie centrale 3c de l'embase 3 comporte une lumière rectangulaire 37 dont les dimensions correspondent à celles du fond 61c de la partie inférieure 61 du boîtier 6, de sorte que lorsque la partie inférieure 61 du boîtier 6 est assemblée à l'embase 3, le fond 61c de la partie inférieure 61 du boîtier 6 est en contact avec la face supérieure 21 du ski 2.The central portion 3c of the base 3 has a rectangular slot 37 whose dimensions correspond to those of the bottom 61c of the lower portion 61 of the housing 6, so that when the lower portion 61 of the housing 6 is assembled to the base 3 the bottom 61c of the lower part 61 of the housing 6 is in contact with the upper face 21 of the ski 2.

La partie supérieure 62 du boîtier 6 est assemblée de manière fixe à la platine 8. Au niveau de la paroi avant 62a de la partie supérieure 62 du boîtier 6, le fond 61c est prolongé vers l'avant par une patte qui comporte un trou 62e. Une vis, non représentée, passe à travers le trou 61e et à travers un trou 81 ménagé sur une patte qui prolonge la partie avant 8a de la platine 8 vers l'arrière.The upper portion 62 of the housing 6 is fixedly connected to the plate 8. At the front wall 62a of the upper portion 62 of the housing 6, the bottom 61c is extended forward by a tab which has a hole 62e . A screw, not shown, goes to through the hole 61e and through a hole 81 formed on a leg which extends the front portion 8a of the plate 8 rearwardly.

La partie supérieure 62 du boîtier 6 est mobile en translation, le long de l'axe X, par rapport à la partie inférieure 61. Lorsque la platine 8 coulisse vers l'avant ou vers l'arrière par rapport à l'embase 3 et au ski 2, la partie supérieure 62 du boîtier 6 suit les mêmes mouvements que la platine 8 et la partie inférieure 61 du boîtier 6 reste immobile par rapport à l'embase 3 et au ski 2.The upper portion 62 of the housing 6 is movable in translation, along the axis X, relative to the lower portion 61. When the plate 8 slides forward or backward relative to the base 3 and ski 2, the upper portion 62 of the housing 6 follows the same movements as the plate 8 and the lower portion 61 of the housing 6 remains stationary relative to the base 3 and the ski 2.

La face supérieure 21 du ski 2 comporte une ligne médiane 23 perpendiculaire à l'axe X qui matérialise le milieu du ski 2, ou plutôt le milieu de la ligne de cote. La ligne médiane 23 constitue un repère pour le positionnement du milieu de la chaussure par rapport au ski 2, le long de l'axe X. La partie centrale 3c de l'embase 3 comporte un curseur 36 qui matérialise le milieu de l'embase 3. Le curseur 36 permet à l'opérateur qui monte la fixation 1 sur le ski 2 d'aligner le milieu de la fixation 1 avec la ligne médiane 23.The upper face 21 of the ski 2 has a middle line 23 perpendicular to the axis X which materializes the middle of the ski 2, or rather the middle of the side line. The center line 23 constitutes a reference mark for the positioning of the middle of the boot with respect to the ski 2, along the axis X. The central portion 3c of the base 3 comprises a slider 36 which materializes the middle of the base 3. The slider 36 allows the operator who mounts the binding 1 on the ski 2 to align the middle of the binding 1 with the center line 23.

De manière classique, la ligne médiane 23 n'est pas située exactement au milieu du ski 2 mais est légèrement décalée vers l'arrière. Selon le sport de glisse, la position de la ligne médiane 23 varie. Par exemple, en ski free-style, la ligne médiane 23 est généralement décalée vers l'avant du ski 2 par rapport à sa position pour un ski polyvalent. La position de cette ligne 23 dépend également des lignes de cote.Conventionally, the center line 23 is not located exactly in the middle of the ski 2 but is slightly shifted towards the rear. According to the sport of gliding, the position of the median line 23 varies. For example, in free-style skiing, the center line 23 is generally shifted forward of the ski 2 relative to its position for a multi-purpose ski. The position of this line 23 also depends on the dimension lines.

Par défaut, lorsqu'aucune action mécanique extérieure n'agit sur le ski 2 et sur la fixation 1, la fixation 1 est dans une position centrale, représentée aux figures 3 et 6, dans laquelle la platine 8 et le milieu de la chaussure sont alignés avec la ligne médiane 23 du ski 2. Le ressort 7 tend à maintenir par défaut la fixation 1 dans la position centrale.By default, when no external mechanical action acts on the ski 2 and on the attachment 1, the attachment 1 is in a central position, represented in FIGS. figures 3 and 6 , in which the plate 8 and the middle of the shoe are aligned with the center line 23 of the ski 2. The spring 7 tends to maintain the attachment 1 by default in the central position.

Lorsque le skieur rencontre une irrégularité de terrain, par exemple une bosse ou une motte de neige, l'inertie du skieur entraine la platine 8 vers l'avant F1 par rapport à l'embase 3 et au ski 2 et les glissières 5a1, 5a2, 5b1, 5b2 coulissent le long des rails 4a1, 4a2, 4b1 et 4b2. En même temps, la partie supérieure 62 du boîtier 6 coulisse par rapport à la partie inférieure 61 et le ressort 7 se comprime, amortissant ainsi le mouvement d'avance ou de recul de la platine 8. Un fois l'obstacle passé, l'énergie emmagasinée dans le ressort est restitué et la platine reprend progressivement sa place en position centrale.When the skier encounters a terrain irregularity, for example a bump or a snow ball, the inertia of the skier causes the plate 8 forward F1 relative to the base 3 and the ski 2 and the slides 5a1, 5a2 , 5b1, 5b2 slide along the rails 4a1, 4a2, 4b1 and 4b2. At the same time, the upper portion 62 of the housing 6 slides relative to the lower portion 61 and the spring 7 is compressed, thereby damping the forward or backward movement of the plate 8. Once the obstacle has passed, the energy stored in the spring is restored and the platinum gradually returns to its central position.

Lorsque la platine 8 coulisse vers l'avant F1 par rapport à l'embase 3 et au ski 2, la paroi arrière 62b de la partie supérieure 62 du boîtier 6 pousse l'extrémité arrière 7b du ressort 7. Le ressort 7 se comprime et son extrémité avant 7a s'appuie contre la paroi avant 61b de la partie inférieure 61 du boîtier 6. Le mouvement de translation de la platine 8 vers l'avant est limité par une butée avant 64a (cf. fig 1b) contre laquelle vient buter une protubérance avant (non représentée) de la platine. La platine 8 est alors dans une position d'avance maximale par rapport à l'embase 3 et au ski 2, illustrée aux figures 1b, 4 et 7.When the plate 8 slides forward F1 relative to the base 3 and the ski 2, the rear wall 62b of the upper portion 62 of the housing 6 pushes the rear end 7b of the spring 7. The spring 7 is compressed and its front end 7a bears against the front wall 61b of the lower part 61 of the housing 6. The translation movement of the plate 8 forward is limited by a front stop 64a (cf. fig 1b ) against which abuts a protrusion front (not shown) of the plate. The plate 8 is then in a position of maximum advance relative to the base 3 and the ski 2, illustrated in FIGS. figures 1b , 4 and 7 .

Lorsque la platine 8 coulisse vers l'arrière F2 par rapport à l'embase 3 et au ski 2, la paroi avant 62a de la partie supérieure 62 du boîtier 6 pousse l'extrémité avant 7a du ressort 7. Le ressort 7 se comprime et son extrémité arrière 7b s'appuie contre la paroi arrière 61b de la partie inférieure 61 du boîtier 6. Le mouvement de translation de la platine 8 vers l'arrière est limité par une butée arrière 64b contre laquelle vient buter une protubérance arrière (non représentée) de la platine. La platine 8 est alors dans une position de recul maximal par rapport à l'embase 3 et au ski 2, illustrée aux figures 1c, 5 et 8.When the plate 8 slides back F2 relative to the base 3 and the ski 2, the front wall 62a of the upper portion 62 of the housing 6 pushes the front end 7a of the spring 7. The spring 7 is compressed and its rear end 7b bears against the rear wall 61b of the lower portion 61 of the housing 6. The translational movement of the plate 8 to the rear is limited by a rear stop 64b against which abuts a rear protrusion (not shown) of the plate. The plate 8 is then in a maximum retracted position relative to the base 3 and the ski 2, illustrated in FIGS. figures 1c , 5 and 8 .

De cette manière, les mouvements du skieur vers l'avant F1 ou vers l'arrière F2 sont atténués grâce au ressort 7 qui amortit les déplacements des chaussures et empêche le skieur d'être déséquilibré.In this way, the movements of the skier forward F1 or rearward F2 are mitigated by the spring 7 which damps the movements of the shoes and prevents the skier from being unbalanced.

La position centrale est intermédiaire par rapport aux positions maximales d'avance et de recul. Le long de l'axe X, la position de la platine 8 par rapport à l'embase 3 est située entre, d'une part, la position de la platine 8 dans la position d'avance maximale des figures 4 et 7 et, d'autre part, la position de la platine 8 dans la position de recul maximal des figues 5 et 8.The central position is intermediate with respect to the maximum positions of advance and recoil. Along the axis X, the position of the plate 8 relative to the base 3 is located between, on the one hand, the position of the plate 8 in the position of maximum advance of the figures 4 and 7 and, on the other hand, the position of the plate 8 in the maximum retracted position of FIGS. 5 and 8.

Lorsque le skieur a dépassé les irrégularités du terrain qui ont tendance à le déséquilibrer, le ressort 7 se détend et déplace la platine 8 dans la position centrale, ce qui aide le skieur à retrouver sa position d'équilibre.When the skier has overcome the irregularities of the ground which tend to unbalance, the spring 7 relaxes and moves the plate 8 in the central position, which helps the skier to find his position of balance.

En dehors de toute irrégularité de terrain, la platine peut également se déplacer d'avant en arrière et vice-versa en fonction du pilotage de la planche de glisse. Par exemple, dans le cas d'une paire de ski alpin, lorsque le ski déclenche un virage, la platine se déplace vers l'avant et les moyens d'amortissement emmagasinent de l'énergie. La restitution de cette énergie aura alors pour effet de déplacer vers l'arrière la platine au-delà de la position centrale. Ainsi, le skieur sera moins déséquilibré par les décélérations et accélérations auxquelles il est soumis.Apart from any uneven ground, the plate can also move back and forth depending on the steering of the gliding board. For example, in the case of a pair of alpine skis, when the ski triggers a turn, the turntable moves forward and the damping means store energy. The restitution of this energy will then have the effect of moving the platinum backwards beyond the central position. Thus, the skier will be less unbalanced by the decelerations and accelerations to which he is subjected.

L'emploi d'une glissière à bille permet de limiter les frottements lors de la translation de la platine 8, ce qui améliore l'amortissement et le retour de la platine 8 dans la position centrale.The use of a ball slide makes it possible to limit the friction during the translation of the plate 8, which improves the damping and the return of the plate 8 in the central position.

La raideur du ressort 7 pourra être choisie en fonction du poids du skieur. La force de rappel du ressort 7 varie linéairement en fonction du déplacement de la platine 8.The stiffness of the spring 7 may be chosen according to the weight of the skier. The return force of the spring 7 varies linearly as a function of the displacement of the plate 8.

Le ressort 7 et le boîtier 6 constituent un organe d'amortissement du mouvement longitudinal de la platine 8. En variante, le ressort 7 et le boîtier 6 peuvent être remplacés par un autre organe d'amortissement. Par exemple, il peut s'agir d'un amortisseur hydraulique. Eventuellement, l'organe d'amortissement peut inclure un amortisseur dont la force de rappel varie linéairement en fonction de la vitesse de la platine 8.The spring 7 and the housing 6 constitute a damping member of the longitudinal movement of the plate 8. Alternatively, the spring 7 and the housing 6 may be replaced by another damping member. For example, it may be a hydraulic damper. Optionally, the damping member may include a damper whose return force varies linearly as a function of the speed of the plate 8.

La course maximale du déplacement de la platine 8 par rapport à l'embase 3 est égale à la distance séparant la butée avant 64a de la butée arrière 64b à laquelle on soustrait la distance séparant les protubérance avant et arrière ménagées sous la platine 8. En pratique, la course de déplacement comprise entre 20 mm et 140 mm, de préférence comprise entre 30 mm et 100 mm. Dans le mode de réalisation décrit aux figure 1 à 8, la course maximale totale est sensiblement égale à 80 mm. Depuis la position centrale, la platine peut se déplacer de 40 mm vers l'avant et de 40 mm vers l'arrière.The maximum travel of the displacement of the plate 8 relative to the base 3 is equal to the distance between the front stop 64a of the rear stop 64b to which the distance separating the front and rear protuberances formed under the plate 8 is subtracted. in practice, the displacement travel is between 20 mm and 140 mm, preferably between 30 mm and 100 mm. In the embodiment described in figure 1 to 8 , the total maximum stroke is substantially equal to 80 mm. From the center position, the deck can move 40mm forward and 40mm rearward.

Dans l'exemple décrit ci-dessus, la planche de glisse est un ski prévu pour être utilisé par paire. En variante, il peut s'agir d'un surf de neige, d'un monoski ou d'un autre type de planche de glisse.In the example described above, the gliding board is a ski intended to be used in pairs. Alternatively, it may be a snowboard, a monoski or other type of gliding board.

En variante, la partie avant 8a de la platine 8 est reliée à la partie arrière 8b par une seule entretoise. En alternative, la platine 8 est en une seule pièce.Alternatively, the front portion 8a of the plate 8 is connected to the rear portion 8b by a single spacer. Alternatively, the plate 8 is in one piece.

Les figures 9a et 9b illustrent schématiquement un deuxième mode de réalisation de l'invention la platine 8 portant les fixations n'a la possibilité de coulisser librement que vers l'avant du ski. Lorsque qu'elle n'est pas soumise à un effort dirigé vers l'avant, elle se trouve dans sa position d'équilibre qui correspond à la position préconisée par le fabricant de ski (fig. 9a).The Figures 9a and 9b schematically illustrate a second embodiment of the invention the plate 8 carrying the fasteners has the ability to slide freely only towards the front of the ski. When it is not subjected to a force directed forward, it is in its equilibrium position which corresponds to the position recommended by the ski manufacturer ( Fig. 9a ).

Lorsqu'elle est soumise à une effort longitudinal vers l'avant, elle coulisse vers l'avant. Si l'effort est très important, elle va atteindre la position avancée illustrée à la figure 9b.When subjected to longitudinal forward force, it slides forward. If the effort is very important, it will reach the advanced position illustrated in the figure 9b .

Une planche de glisse équipée d'une telle fixation, aura un comportement qui facilite son entrée dans la courbe.A gliding board equipped with such a binding, will have a behavior that facilitates its entry into the curve.

En variante non représentée, l'embase 3 est positionnée sur le ski de telle façon que c'est la position la plus avancée de la platine qui constitue la position d'équilibre stable. Dans ce cas, la platine ne pourra coulisser que vers l'arrière. Une planche de glisse ainsi équipée, aura tendance à accélérer la sortie du virage.In a variant not shown, the base 3 is positioned on the ski so that it is the most advanced position of the plate which constitutes the stable equilibrium position. In this case, the deck can only slide backwards. A gliding board equipped, will tend to accelerate the exit of the turn.

Dans le cadre de l'invention, les caractéristiques des différentes variantes peuvent être combinées entre elles, au moins partiellement.In the context of the invention, the characteristics of the different variants can be combined with each other, at least partially.

Claims (14)

  1. Snowsports board (2) that is intended to be used during a sports activity involving gliding phases and has a boot binding, said binding making it possible to bind a user's boot in a first longitudinal position with respect to the snowsports board; said binding comprising:
    - a plate (8),
    - at least one device (1a, 1b) for retaining the boot on the plate,
    - sliding means (4a1, 4a2, 4b1, 4b2, 5a1, 5a2, 5b1, 5b2) disposed between the plate and the snowsports board for longitudinal movement of the plate (8) with respect to the snowsports board (2),
    - said sliding means moving the plate during the gliding phases such that the boot can shift with respect to said first longitudinal position during the sports activity,
    - damping means for damping the longitudinal movements of the plate,
    said damping means damping the movements of the plate in both directions, characterized in that the damping means position the plate in a stable central position, known as neutral position, in which the plate is situated between the position in which it has been moved forward to a maximum extent and the position in which it has been moved back to a maximum extent.
  2. Board according to Claim 1, characterized in that the sliding means allow the boot to move forwards or rearwards with respect to said first longitudinal position.
  3. Board according to either of Claims 1 and 2, characterized in that the sliding means allow a movement travel of the plate of greater than 20 mm, preferably greater than 40 mm.
  4. Board according to one of Claims 1 to 3, characterized in that a first end stop (64a, 64b) limits the forward movement of the plate as far as a position in which it has been moved forward to a maximum extent and a second end stop (64a, 64b) limits the rearward movement of the plate as far as a position in which it has been moved back to a maximum extent.
  5. Board according to one of Claims 1 to 4, characterized in that the binding comprises a base (3) joined securely to the snowsports board (2), said base having at least one rail (4a1, 4a2, 4b1, 4b2); in that the plate (8) has at least one runner (5a1, 5a2, 5b1, 5b2) which cooperates with said rail.
  6. Board (2) according to one of the preceding claims, characterized in that the damping member (6, 7) comprises a compression spring (7) disposed in a housing (6) comprising a lower part (61) joined securely to the base (3) and an upper part (62) joined securely to the plate (8), and in that the upper part (62) is movable in translation, parallel to the rail (4a1, 4a2, 4b1, 4b2), with respect to the lower part (62).
  7. Board (2) according to Claim 6, characterized in that the longitudinal ends of each part (61, 62) of the housing (6) are formed by a wall (61a, 61b, 62a, 62b) perpendicular to the rails (4a1, 4a2, 4b1, 4b2), and in that the length between the walls (61a, 61b, 62a, 62b) of each part is equal to the free length (L7) of the spring (7).
  8. Board (2) according to one of the preceding claims, characterized in that the plate (8) comprises a front part (8a) and a rear part (8b) that are joined together securely by at least one spacer (9c1, 9c2).
  9. Board (2) according to Claim 5, characterized in that the base (3) comprises a front part (3a) and a rear part (3b), the longitudinal edges (32a1, 32a2, 32b1, 32b2) of which are each equipped with a rail (4a1, 4a2, 4b1, 4b2), each rail (4a1, 4a2, 4b1, 4b2) cooperating with a runner (5a1, 5a2, 5b1, 5b2) joined securely to the front part (8a) or the rear part (8b) of the plate (8).
  10. Board (2) according to one of the preceding claims, characterized in that the runners (5a1, 5a2, 5b1, 5b2) are ball-bearing runners.
  11. Board (2) according to one of the preceding claims, characterized in that each rail (4a1, 4a2, 4b1, 4b2) is parallel to a longitudinal axis (X) of the snowsports board (2).
  12. Board (2) according to one of the preceding claims, characterized in that the device (1a, 1b) for retaining the boot on the plate (8) vertically immobilizes the boot with respect to the snowsports board (2).
  13. Board (2) according to one of the preceding claims, characterized in that a front retaining device (1a) and a rear retaining device (1b) are secured to the plate (8) .
  14. Pair of two snowsports boards, characterized in that each of the two snowsports boards is equipped with a binding (1) according to one of Claims 1 to 13.
EP13005448.9A 2012-11-20 2013-11-20 Binding for a boot on a snowboard and snowboard including such a binding Active EP2732856B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1203118A FR2998186B1 (en) 2012-11-20 2012-11-20 FIXING A SHOE ON A SLIDING BOARD AND SLIDING BOARD COMPRISING SUCH A FIXATION

Publications (2)

Publication Number Publication Date
EP2732856A1 EP2732856A1 (en) 2014-05-21
EP2732856B1 true EP2732856B1 (en) 2019-06-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13005448.9A Active EP2732856B1 (en) 2012-11-20 2013-11-20 Binding for a boot on a snowboard and snowboard including such a binding

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US (1) US9033359B2 (en)
EP (1) EP2732856B1 (en)
FR (1) FR2998186B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT516024B1 (en) * 2014-09-24 2016-02-15 Atomic Austria Gmbh Sports equipment, in particular Tourenskianordnung
US10058763B2 (en) * 2015-04-29 2018-08-28 Bishop Bindings Llc Telemark ski bindings systems and methods
NO340839B1 (en) * 2015-11-30 2017-06-26 Rottefella As System for optional dynamic positioning of a ski binding on a ski
USD820932S1 (en) 2016-05-04 2018-06-19 Salomon S.A.S. Ski binding
USD820933S1 (en) 2016-05-04 2018-06-19 Salomon S.A.S. Ski binding
NO20170170A1 (en) * 2017-02-03 2018-04-30 Rottefella As Mounting system for binding
US11590406B2 (en) * 2017-04-13 2023-02-28 Worcester Polytechnic Institute Multi-mode load absorbing ski binding
US11229831B2 (en) 2018-06-24 2022-01-25 Bishop Bindings Llc Telemark ski binding assembly

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3797844A (en) * 1970-09-28 1974-03-19 Gertsch Ag Ski binding
WO2006088908A2 (en) * 2005-02-16 2006-08-24 Wilson Anton F Snowboards
WO2008032349A1 (en) * 2006-09-14 2008-03-20 Cersal S.R.L. Device for anchoring a binding to a downhill ski
WO2009123576A1 (en) * 2008-03-31 2009-10-08 Alu-B D.O.O. Platform for mounting a ski binding on a ski

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Publication number Priority date Publication date Assignee Title
US6131939A (en) * 1998-08-17 2000-10-17 Fels Canadian Ski Company Ltd. Snow ski having slidingly interconnected upper and lower ski sections
US7159891B1 (en) * 2003-11-26 2007-01-09 Dale Niggemann All-terrain ski
FR2877851B1 (en) * 2004-11-12 2006-12-08 Skis Rossignol Sa Sa DEVICE FOR MOUNTING A SKI OF THE ELEMENTS OF A SAFETY FIXATION
FR2894836B1 (en) * 2005-12-16 2008-02-22 Salomon Sa BACKGROUND SKI SET AND DOWNHOLE SKI FIXING DEVICE
FR2899121B1 (en) * 2006-03-29 2008-07-04 Salomon Sa BACKGROUND SKI SET AND DOWNHOLE SKI FIXING DEVICE
FR2901486A1 (en) * 2006-05-24 2007-11-30 Salomon Sa ASSEMBLY COMPRISING A SLIDING BOARD AND A DEVICE FOR RETAINING A FOOTWEAR ARTICLE ON THE BOARD
FR2929531B3 (en) * 2008-04-08 2010-08-13 Salomon Sas ASSEMBLY COMPRISING A SLIDING BOARD AND A RETAINING DEVICE FOR A FOOTWEAR ARTICLE.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797844A (en) * 1970-09-28 1974-03-19 Gertsch Ag Ski binding
WO2006088908A2 (en) * 2005-02-16 2006-08-24 Wilson Anton F Snowboards
WO2008032349A1 (en) * 2006-09-14 2008-03-20 Cersal S.R.L. Device for anchoring a binding to a downhill ski
WO2009123576A1 (en) * 2008-03-31 2009-10-08 Alu-B D.O.O. Platform for mounting a ski binding on a ski

Also Published As

Publication number Publication date
FR2998186B1 (en) 2015-01-09
US20140138936A1 (en) 2014-05-22
US9033359B2 (en) 2015-05-19
FR2998186A1 (en) 2014-05-23
EP2732856A1 (en) 2014-05-21

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