EP0750522B1 - Butee avant pour fixation de securite de ski alpin - Google Patents
Butee avant pour fixation de securite de ski alpin Download PDFInfo
- Publication number
- EP0750522B1 EP0750522B1 EP95914385A EP95914385A EP0750522B1 EP 0750522 B1 EP0750522 B1 EP 0750522B1 EP 95914385 A EP95914385 A EP 95914385A EP 95914385 A EP95914385 A EP 95914385A EP 0750522 B1 EP0750522 B1 EP 0750522B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- jaw
- spring
- toe piece
- pin
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C9/00—Ski bindings
- A63C9/001—Anti-friction devices
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C9/00—Ski bindings
- A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
- A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
- A63C9/08507—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws
- A63C9/08521—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws pivoting about a vertical axis, e.g. side release
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C9/00—Ski bindings
- A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
- A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
- A63C9/08557—Details of the release mechanism
- A63C9/08571—Details of the release mechanism using axis and lever
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C9/00—Ski bindings
- A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
- A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor
Definitions
- the invention relates to a front stop for safety fastening Alpine skiing.
- a front stop for safety fastening Alpine skiing.
- On a ski such a stop has the function of keeping in places the front end of a ski boot, while allowing this end of freeing when the stress exerted on the stop exceeds a predetermined value.
- This predetermined value is called the trigger. It is chosen so that the force that holds the shoe is below the force required to break bones or tear the ligaments of the skier wearing the ski.
- the lateral force holding the shoe indicates the force perpendicular to the axis of the shoe exerted at the extreme end before the shoe corresponding to the couple that the skier must exercise for the rotate around an axis located near its tibia.
- the boot of the skier is held in a jaw with two wings side. Each side wing pivots about a vertical axis. She is returned to its rest position by a spring. The shoe can be released from attachment when jaw pivots about a certain angle of the axis, corresponding to a certain elastic stroke.
- the race elastic means the distance the front end of the shoe before being released.
- Each angular position corresponds a restoring force exerted by the spring: it is equal to the constant of spring multiplied by the compression or total extension of said spring.
- Document AT-B-335,892 discloses a stop before fixing of alpine ski safety comprising a body, a jaw comprising two lateral wings, pivotally mounted around at least one axis substantially vertical, a lever mounted pivoting around a transverse axis secured to the body and on which the jaw, or a jaw wing, by pivoting around its axis exerts a torque, as well as at least one spring.
- the result is that the force holding the shoe increases from the rest position, reaching a maximum or threshold trigger after part of the total stroke. This part varies depending on the threshold setting.
- the elastic race actually consists of a first part useful where effectively the spring return force can overcome the friction forces plus a component of the longitudinal thrust of the heel, and recalls the shoe in the rest position, and a second part where the result of these forces combined with the arm of descending lever act on the rounded tip of the front of the shoe around the shin, no longer recalls the shoe which therefore remains immobilized in eccentric position, if no additional external force is exercised, either to release it or to refocus it.
- this threshold is not the same for all skiers. It varies depending on the size and weight of the skier, as well as of his level.
- the solution adopted is in generally that of compressing or tensioning more or less the spring of reminder when the jaw is in its rest position. The more the spring is then compressed or stretched in this rest position, the higher the threshold trigger is high.
- the restoring force of the jaw towards its rest position depends on the setting of the trigger threshold.
- the threshold trigger is set close to the minimum, the return spring is slightly compressed in the rest position. Therefore, in the vicinity of this position, the holding force is low, compared to the threshold force trigger.
- This balance of power is designated by the term holding the shoe, and this low resistance translates for the skier by a feeling of lack of firmness at the start of elastic travel.
- the return spring is much more prestressed when the jaw is in the rest position and the force of restraint near this position is closer to the threshold force trigger.
- the retaining force is constant, from the rest position, up to the shoe release position from the fixation. Constant strength has two advantages.
- the energy absorption by the spring is maximum for a given trigger threshold setting.
- the object of the invention is to propose a stop before ski safety binding comprising a jaw having two wings lateral, pivoting around at least one axis, such as restoring forces and restraint during the elastic stroke are proportional to the tripping threshold, the useful elastic stroke then being independent of this threshold.
- the object is achieved by the stop defined in claim 1.
- the front fixing stop according to the invention is a alpine ski safety binding front stop comprising a body, a jaw with two side wings, pivotally mounted around at at least one substantially vertical axis, and a lever mounted pivoting around a transverse axis integral with the body and on which the jaw, or a jaw wing, by pivoting around its axis exerts a torque.
- the lever is connected to the end of at least one spring, the other end of which is articulated at a fixed point on the body of fixation, the trigger threshold being adjusted by modifying the ratio of the distances between, on the one hand, the axis of the sunrise and the point application of the spring return force on the lever and, on the other hand, the axis of the lift and the point of application of the force exerted by the jaw on the lever, acting on a moving part.
- a first variant is characterized in that the lever is mounted vertically in the longitudinal direction of the ski and pivots around a transverse axis passing through the lever, in that the jaw or each wing side of the jaw acts via a connecting piece on the lever at an application point located on one side of the transverse axis, in this that at least one spring is articulated by its ends, on the one hand, on the fixing body and, on the other hand, on a threaded part, mounted sliding on the lever on the other side of the transverse axis, which can slide perpendicular to the transverse axis and in that a screw, mounted on the lever and engaged in the sliding part, moves this last while turning.
- a second variant is characterized in that the rising is mounted vertically in the longitudinal direction of the ski and pivots around a transverse axis crossing the lever, in that the jaw or each wing side of the jaw acts via a connecting piece on the lever at an application point located on one side of the transverse axis, in this at least one leaf spring is articulated by its ends on the one hand on the fixing body and on the other hand on a movable part which, displaceable perpendicular to the transverse axis, is fitted with a rack cooperating with a rack fixed to the lift, means of locking being provided to maintain the workpiece in position movable with respect to the lever.
- the spring is a leaf spring which tends to flame when subjected to stress.
- a force of intensity greater than a critical value Euler's strength. Once this threshold is exceeded, the blade behaves substantially like a conventional stiffness spring relatively weak but highly prestressed.
- the lateral wing of the jaw must exert on the spring through the lever, a force greater than or equal to the force critical, to pivot around its axis.
- the stiffness of the leaf spring being relatively low, the restoring force of the spring increases little, but the lever arm of the spring relative to the axis of the lever increases enough to counteract the factors that tend to reduce the force that holds the shoe during the run elastic, including the increasing component of the axial force of the heel cup and reduction of the side wing lever arm acting on the shoe.
- the locking means keeping the moving part in position vis-à-vis the lever may include, for example, a wedge secured to a removable flap, mounted on the fixing body possibly forming a window, cooperating with a lug secured to the lever or with at least one wing side, or these locking means may include a tongue secured to the moving part, and having at least one tooth cooperating with a second rack integral with the lever.
- the springs used in these variants are preferably spring leaves of mainly fiber composite unidirectional in the longitudinal direction, possibly with fibers crossed at about 90 ° near the neutral axis.
- These leaf springs is adapted to this application, if they are of constant thickness, except at the ends where they are rounded, forming an arc, the center of which is offset by relative to the neutral axis of the blade, and if these blades are wider at center only at the ends, so that in maximum bending each blade is deformed in an arc, i.e. has a radius of constant curvature.
- the eccentrically rounded ends favor the buckling in the chosen direction.
- blades can be stacked in parallel to increase their strength.
- the lever comprises two parallel flat plates in the shape of an "L", which are placed vertically in the longitudinal direction of the ski and spaced one from the other, and a flat plate connecting two branches of the two L-shaped plates and perpendicular to them, in that the lift pivots around a transverse axis crossing the ends of the branches connected "L” shaped plates, in that the spring is a spring helical articulated at one of its ends at a fixed point on the body of attachment and by its other end to the ends of the branches not connected "L” shaped plates, in that a sliding part which can be move as you approach or move away from the axis around which the lever is guided on the flat plate connecting the two plates in the form of "L” and in that the jaw, or each wing of the jaw acts on the lever via a link bar articulated on the one hand on the jaw, or a wing of the jaw, and on the other hand on the workpiece sliding.
- the displacement of this sliding part can be obtained by various devices.
- it may be a device where the setting of the position of the sliding part on the flat plate connecting the two "L" shaped plates are made using cables that connect the room sliding with a nut which can be moved using a screw mounted on the fixing body and which are guided by pulleys, the axis of one of these pulleys being coincident with the axis of the lever.
- the sliding part is tapped and a threaded rod at one end and fitted a toothing at its other end is, on the one hand, engaged in the part sliding, and, on the other hand, rotated through its toothing by a rack.
- a fourth variant, fairly close to the variant previous, is characterized in that the lever has two plates connected parallel planes, which are placed vertically in the longitudinal direction of the ski and spaced from each other, in that the lift pivots around a transverse axis crossing the two flat plates lever parallels near the center of these, in that a piece sliding that can move closer or farther from the axis around which the lever pivots, is guided between the two flat plates and is connected to the jaw, or to each wing of the jaw, by through a connecting piece, in that the spring, one of which end is articulated at a fixed point of the fixing body is a spring helical, the other end of which is hinged at one end of each flat plate of the lever, in that at the other end of the lever, between the flat plates, is mounted, on an axis, a movable lever in rotation, of which one arm is in contact with a screw mounted in the first lever and which comes, via another arm, into abutment against the workpiece sliding, so that it can slide on the edges of the flat
- the spring is a spring helical
- the tube and the articulated connection on the body of the fixing form a single piece.
- a damping device with a substantially cylindrical cylinder which, on the one hand, would ensure the stability of the spring (s), and, on the other hand, would provide a damping whose force adjustment would automatically aligned with the elastic force, and therefore threshold adjustment release, without any additional device.
- damping may include a fluid damper mounted in parallel with the spring, between a fixed point on the fixing body and lift it.
- the spring mounted between the fixing body and the lever is a helical spring, it is advantageously fitted on the fluid damper which serves as a guide.
- the jaw has two axes around which pivot the side wings, these preferably converge slightly towards each other upwards, giving a diagonal trajectory, slightly from bottom to top, side wings. So during a fall rear combined with a twist around the skier's leg, the vertical force component exerted upward on the jaw, creates a torque in relation to the axis of articulation of the lateral wing, reducing the lateral force required to initiate fixation.
- an anti-friction plate in polytetrafluoroethylene for example, is fixed on the ski binding, in front of the jaw, where a shoe held in the binding.
- the front stop according to the invention comprises a second lever mounted pivoting about an axis substantially parallel to the transverse axis of the first lift, a first end of this lever being intended to be placed under the front end a shoe of a skier and the second end of this lever being intended to be housed in a notch made in the first lever.
- the second lift creates a couple on the first lever tending to release the shoe placed in the stopper to compensate for frictional forces due to the forward fall which appear and oppose when the skier's shoe is released.
- FIGS 1 to 4 show a first embodiment of a ski binding according to the invention.
- a fixing body 1 serves as support with two side wings 2, 3, pivotally mounted each around of a vertical axis 4 and forming a jaw. Fixing through of the jaw 2.3 is intended to maintain the front end of a ski boot 5 in the longitudinal axis of the ski, but also to allow to release the shoe 5 when a force, corresponding to a moment substantially around the tibia, exceeding a predetermined limit, called trigger threshold, is reached or exceeded.
- trigger threshold a predetermined limit
- each of these springs is articulated in a adapted cavity of the internal wall of the binding body of the ski.
- the other end is articulated on a movable part with adjustable position 10.
- This part is slidably mounted on lever 6 using a slide link and is tapped.
- a screw 11, movable in rotation, immobile in translation, relative to the lever 6, is engaged with the moving part 10.
- the screw 11 is substantially vertical.
- the moving part 10 can therefore move from bottom to top or conversely, bringing with it the end of the springs 9. It is thus possible to vary the resistive torque exerted by the springs 9 on the lever 6, and therefore the trigger threshold.
- the moving part 10 also serves as a cursor and has a index 54 which indicates the setting of the triggering threshold chosen on a ladder on lever 6, through a light 55 on the lever and a window on the rear wall of the body 1 of the binding.
- These springs are spring leaves.
- Figure 2 shows these springs in top view: they are wider in the center than in extremities.
- Figure 6 shows them from the side: they are of constant thickness except at the ends which are rounded eccentrically with respect to the neutral fiber, in this case in a quarter circle, of substantially equal radius to the thickness of the blade.
- These springs are made of composite material with fibers mainly unidirectional in the longitudinal direction and fibers crossed at 90 ° near the neutral axis. The two blades are mounted side by side and are wider in the center. Possibly, these blades could be integral and be united in their center in one room.
- the springs 9 being spring leaves biased in compression in the longitudinal direction, there is deformation of these blades, and therefore consequently rotation of the lever 6 around the axis 7, that when the force exerted on the extremities exceeds a value, called force critical of Euler, beyond which the blade 9 blazes.
- Leaf spring then curves and behaves much like a conventional spring having a relatively low stiffness, and a significant prestress.
- an anti-friction plate 12 is placed under the ski boot 5.
- FIG. 5 A variant of this stop is shown in FIG. 5.
- the trigger threshold setting mode and its display vary.
- the two connecting pieces 8 are integral and no longer form only one connecting part 8.
- the movable part with adjustable position 10 is no longer tapped, but fitted with a rack 53, cooperating with a first rack 13 linked to the lever 6.
- a tongue 14, provided with a tooth 15 is integral with this moving part 10. This tooth cooperates with a second rack 16, also linked to lever 6.
- a small spring integrated into the moving part 10 ensures the release of its rack 53 and the rack 13 of the lever 6.
- a small projection 56 is provided on at least one side of the top of lever 6, which acts as a pivot / stop actuated by finger or using any other suitable tool, making it possible to push the tongue 14 in the direction contrary to the thrust of lever 6 necessary to release the racks.
- the window 19 makes the opening in the fixing body 1 more hermetic, and allows to visualize the setting of the triggering threshold indicated by tooth 15 at the top of tongue 14, serving as an index against the scale, on the top of the lever 6.
- the blade spring 9 is placed above axis 7, unlike the two previous variants.
- the side wings 2,3 are placed below this axis 7.
- a compensating lever 70 mounted pivoting about an axis 76 substantially parallel to the transverse axis 7, is provided in this variant.
- One end 77 of this lever 70 carries the anti-friction plate 12.
- the other end 78 of the lever is housed in a notch 71 made in the lever 6.
- the lever 70 is provided to compensate for this force of additional friction, that is to say, it promotes the release of the shoe when it presses, substantially vertically, on the anti-friction plate 12. Indeed, by pressing the end 77 of the lever, the other end 78 of the lever acts on the lever 6, against the leaf of the spring 9. The torque thus created makes it possible to reduce the force necessary to exert on one of the side wings 2,3 to release the skier's shoe.
- the ratio of the lever arms around axis 76, the shape of the notch 71 made in the lever 6 are chosen so that the torque exerted on the lever 6 by the end 78 of the lever 70 is substantially equal to the loss of torque exerted by a side wing 2 or 3 on lever 6 due to the additional friction force between the anti-friction plate 12 and the skier's shoe.
- Figure 18 shows the stop according to the variant described above in its shoe release position at the end of the trigger.
- the leaf spring 9 is replaced by a helical spring 109.
- the parts of this variant having the same function as the parts of the first two variants have the same references increased by 100.
- the fixing body 101 serving as a support for two side wings 102, 103 each pivoting about a vertical axis 104 and forming a jaw, maintaining the front end of the sole of a shoe 105.
- a lever 106 movable around an axis horizontal 107 by means of a connecting piece 108.
- the lever 106 has two parallel plates 120 and 121 in "L" shape, placed vertically in the longitudinal direction and spaced one from the other.
- a third substantially flat and vertical plate 122 connects the two substantially vertical branches of the plates 120 and 121 in the shape of an "L" when the jaw is in the rest position.
- the lever 106 pivots around the axis 107, which crosses the "L" shaped plates near the lower end of the branch vertical, when the jaw is in the rest position.
- a cylindrical compression spring 109 In the vicinity of the end of the other branch, is attached the end of a cylindrical compression spring 109 by means of a articulated connection.
- the other end of the spring is fixed via another articulated link at a fixed point of the fixing body.
- the end of the spring 109, attached to the lever 106 rests on a surface 142 provided for this purpose on the internal face of the fixing body 101. This surface constitutes the edge of a rib 143 of the fixing body 101.
- This moving part 110 is guided by a sliding link on the plate 122 connecting the two L-shaped plates 120 and 121 of the lever 106. In the rest position, the moving part 110 can move over a line of greatest slope of the plate 122.
- the force transmitted by the connecting piece 108 on the lever does not vary, but the torque exerted with respect to the horizontal axis 107 varies as a function of the position of the moving part 110.
- Adjusting the position of the moving part 110 on the plate 122 is carried out using a screw 123, a nut 124, cables 125 and pulleys 126.
- the screw 123 is fixed on the fixing body 101, movable in rotation and motionless in translation relative to this body 101.
- the nut 124 is engaged on the screw 123 and is movable in translation and immobile in rotation relative to the body 101.
- the cables 125 are attached each side of the nut 104 on the one hand, and to the moving part 110 on the other go. They are guided by the pulleys 126.
- a pulley 126 is located each end of the horizontal axis 107 around which the lever pivots 106, as well as near the anterior wall of the fixing body 101.
- the nut 124 also serves as a cursor, indicating the setting of the threshold triggering on a scale (not shown) fixed on the body 101.
- the moving part 110 is at the bottom when the jaw is in the rest position. This corresponds to the threshold of maximum trigger. In FIG. 11, the moving part 110 is at the top, the trigger threshold is minimal.
- Figures 12 and 13 show a variant of this form of execution. We find the general shape of the ski binding stop former. Only the mode for adjusting the workpiece position varies mobile 110 on the plate 122 of the lever 106 and the device making it possible to view the setting.
- the moving part 110 is tapped. It is screwed on two threaded rods 127, each provided with a wheel at their lower end toothed 128.
- a transfer pinion 129 connects the two toothed wheels 128.
- a lever 130 provided with a rack 131, cooperates with the toothed wheels to move the moving part 110.
- a spring 132 holds the rack away from the gear wheels 128.
- the lever 130 By pushing the lever 130 so as to rotate around the fulcrum 133, the teeth of the rack 131 meshes with a toothed wheel 128. If the lever 130 then moves longitudinally, i.e. when entering or leaving the fixing body, the cogwheel 128 meshed turns and by means of the pinion of transfer 129 drives the other toothed wheel 128.
- the two threaded rods 127 then rotate in the same direction and drive the moving part 110.
- the spring 132 moves the rack 131 away from the toothed wheel 128, and recalls the rack 131 in the fixing body 101.
- a small lever 134 mounted to pivot around a horizontal axis rests on the upper face of the moving part 110 and with an index 135 indicates the setting of the triggering threshold chosen on a scale 136.
- a lever 206 has two parallel flat plates 220 and 221 connected between them by a substantially horizontal plate 222 when the wings side 202, 203 forming the jaw are in the rest position.
- the two parallel flat plates 220 and 221 are placed vertically in the longitudinal direction of the ski and are crossed by a transverse axis 207 around which they rotate.
- Plate 222 is tapped and receives a screw 237.
- the head of the screw 237 is provided with a cursor 256 which is free to rotate, whose index indicates the setting of the triggering threshold on a scale 257 fixed on the lever 206.
- a sliding part, with adjustable position 210 is guided on the edges of the vertical plates 220 and 221. It is connected to each branch of the jaw by a connecting piece 208. The piece mobile 210 slides so as to approach or move away from the axis transverse 207.
- a second lever 238 comprising two arms is mounted vertically, pivoting around a second transverse axis 239, between the two vertical plates 220 and 221 of the lever 206.
- An arm of this lever is in contact with the end of the screw 237, the other with the moving part 210.
- the movable part 210 slides in approaching or moving away from the axis 207, thus making it possible to vary the torque of a given force exerted by the jaw on the lever 206 by relative to axis 207, and therefore the trigger threshold.
- edges of the two vertical plates 220 and 221 on which the moving part 210 slides are inclined relative to the line of contact with the side wings 202.203 for changing the initial compression of the spring 209 at the same time as the length of the lever arm, thereby contributing to the threshold change of trigger.
- a spring 209 is attached to one of its ends by means of a connecting piece hinged to a third transverse axis 240, mounted between the plates 220, 221, of the other side of axis 207.
- the other end of the spring is fixed by by means of a connecting piece articulated at a fixed point on the body of fixing 201.
- This spring 209 is fitted onto a tube 241, so ensure better guidance of the spring when it is compressed and relaxes.
- the articulated connection on the fixing body 201 and the tube 241 form a single piece.
- the tube 241 is the outer tube of a fluid damper 258.
- This damper 258 is mounted in parallel with the spring 209.
- the end of the rod 259 of the damper piston is articulated at the axis 240, and the bottom of the cylinder 260 is articulated at the same fixed point of the fixing body 201 as one of the ends of the spring 209.
- the jaw has two lateral wings pivotally mounted about an axis 4. These axes can be vertical or they can slightly converge one towards each other, as shown in Figure 16. The ends of the axes located close to the ski are more distant from each other than the other two ends giving a diagonal trajectory, slightly from bottom to top, side wings.
- the vertical force component exerted upwards on the jaw creates a torque in relation to to the articulation axis of the lateral wing, reducing the lateral force required to trigger the fixation.
- an anti-plate friction 12, 112, 212 is placed on the ski boot fitting the fixation.
Description
- la force croissante du ou des ressorts ;
- le bras de levier décroissant de l'aile latérale agissant sur un des deux bouts arrondis de l'avant de la chaussure autour de l'axe de pivotement, le tibia ;
- une composante croissante de la poussée longitudinale de la talonnière qui plaque la chaussure contre la butée avant, qui réduit la force de retenue ;
- le mécanisme interne particulier de la butée avant ;
- la friction croissante.
- Le premier moyen comporte une cale 18 associée à une fenêtre 19 qui bloque la rotation du lever 6 dans le sens des aiguilles d'une montre, et est placée directement entre le corps 1 et l'ergot 17 du levier 6. Cette cale 18 pourrait également se situer entre le corps 1 et une aile latérale 2 (ou 3).
- Le deuxième moyen de verrouillage comporte toujours la dent 15, qui coopère avec une seconde crémaillère 16, également liée au levier 6. Pour changer le réglage, il faut, comme précédemment, dégager la crémaillère principale 13 de celle de la pièce mobile 10 en pivotant le lever 6 dans le sens des aiguilles d'une montre, tout en poussant pour dégager la dent 15 de la seconde crémaillère 16, et faire glisser la pièce mobile 10 jusqu'à la position souhaitée.
Claims (14)
- Butée avant de fixation de sécurité de ski alpin comportant un corps (1 ; 101 ; 201), une mâchoire comportant deux ailes latérales (2,3 ; 102, 103 ; 202, 203), montée pivotante autour d'au moins un axe (4 ; 104 ; 204) sensiblement vertical, un levier (6 ; 106 ; 206) monté pivotant autour d'un axe transversal solidaire du corps (7 ; 107 ; 207) et sur lequel la mâchoire, ou une aile de mâchoire, en pivotant autour de son axe exerce un couple, ainsi qu'au moins un ressort (9 ; 109 ; 209), le levier étant relié à l'extrémité du ressort (9 ; 109 ; 209) au nombre d'au moins un, dont l'autre extrémité est articulée à un point fixe du corps de fixation, le réglage du seuil de déclenchement s'effectuant en modifiant le rapport des distances entre, d'une part, l'axe du levier et le point d'application de la force de rappel du ressort au nombre d'au moins un sur le levier et, d'autre part, l'axe du lever et le point d'application de la force exercée par la mâchoire sur le levier, en agissant sur une pièce mobile.
- Butée avant selon la revendication 1, caractérisée en ce que le levier (6) est monté verticalement dans le sens longitudinal du ski et pivote autour d'un axe transversal (7) traversant le levier, en ce que la mâchoire ou chaque aile latérale de la mâchoire (2, 3) agit par l'intermédiaire d'une pièce de liaison (8) sur le lever (6) en un point d'application situé d'un côté de l'axe transversal (7), en ce qu'au moins un ressort (9) est articulé par ses extrémités, d'une part, sur le corps de fixation (1) et, d'autre part, sur une pièce taraudée (10), montée coulissante sur le levier (6) de l'autre côté de l'axe transversal (7), pouvant coulisser perpendiculairement à l'axe transversal (7), et en ce qu'une vis (11), montée sur le levier (6) et engagée dans la pièce coulissante (10), déplace cette dernière en tournant.
- Butée avant selon la revendication 1, caractérisée en ce que le levier (6) est monté verticalement dans le sens longitudinal du ski et pivote autour d'un axe transversal (7) traversant le lever, en ce que la mâchoire ou chaque aile latérale de la mâchoire (2,3) agit par l'intermédiaire d'une pièce de liaison (8) sur le levier (6) en un point d'application situé d'un côté de l'axe transversal (7), en ce qu'au moins une lame de ressort (9) est articulée par ses extrémités d'une part sur le corps de fixation (1) et d'autre part sur une pièce mobile (10) qui, déplaçable perpendiculairement à l'axe transversal (7), est munie d'une crémaillère (53) coopérant avec une crémaillère (13) solidaire du lever (6), des moyens de verrouillage étant prévus pour assurer le maintien en position de la pièce mobile (10) vis-à-vis du lever (6).
- Butée avant selon la revendication 3, caractérisée en ce que les moyens de verrouillage assurant le maintien en position de la pièce mobile (10) vis-à-vis du levier (6) comportent une cale (18) solidaire d'un volet amovible (19), monté sur le corps (1) formant éventuellement une fenêtre, coopérant avec un ergot (17) solidaire du levier (6) ou avec au moins une aile latérale (2,3).
- Butée avant selon la revendication 3, caractérisée en ce que les moyens de verrouillage assurant le maintien en position de la pièce mobile (10) vis-à-vis du lever (6) comportent une languette (14) solidaire de la pièce mobile (10), et présentant au moins une dent (15) coopérant avec une seconde crémaillère (16) solidaire du levier (6).
- Butée avant selon l'une des revendications 2 à 5, caractérisée en ce que chaque ressort est formé par une lame de ressort (9) en matériau composite à fibres majoritairement unidirectionnelles dans le sens longitudinal, avec éventuellement des fibres croisées à environ 90° près de l'axe neutre.
- Butée avant selon la revendication 6, caractérisée en ce que les lames de ressort (9) sont d'épaisseur constante, sauf aux extrémités où elles sont arrondies, formant un arc de cercle dont le centre est décalé par rapport à l'axe neutre de la lame, et en ce que ces lames sont plus larges au centre qu'aux extrémités, pour qu'en flexion maximale chaque lame soit déformée suivant un arc de cercle, c'est-à-dire possède un rayon de courbure constant.
- Butée avant selon la revendication 1, caractérisée en ce que le lever (106) comporte deux plaques planes parallèles (120, 121) en forme de "L", qui sont placées verticalement dans le sens longitudinal du ski et espacées l'une de l'autre, et une plaque plane (122) reliant deux branches des deux plaques en forme de L et perpendiculaire à celles-ci, en ce que le levier (106) pivote autour d'un axe transversal (107) traversant l'extrémité des branches reliées des plaques en forme de "L", en ce que le ressort (109) est un ressort hélicoïdal articulé à l'une de ses extrémités à un point fixe du corps de fixation et par son autre extrémité aux extrémités des branches non reliées des plaques (120, 121) en forme de "L", en ce qu'une pièce coulissante (110) pouvant se déplacer en se rapprochant ou s'éloignant de l'axe (107) autour duquel pivote le levier (106) est guidée sur la plaque plane (122) reliant les deux plaques en forme de "L", et en ce que la mâchoire (102, 103), ou chaque aile de la mâchoire agit sur le levier (106) par l'intermédiaire d'une barre de liaison (108) articulée d'une part sur la mâchoire, ou une aile de la mâchoire (102, 103), et d'autre part sur la pièce coulissante (110).
- Butée avant selon la revendication 1, caractérisée en ce que le levier (206) comporte deux plaques planes parallèles (220, 221) reliées entre elles, qui sont placées verticalement dans le sens longitudinal du ski et espacées l'une de l'autre, en ce que le lever (206) pivote autour d'un axe transversal (207) traversant les deux plaques planes parallèles du levier à proximité du centre de celles-ci, en ce qu'une pièce coulissante (210) pouvant se déplacer en se rapprochant ou s'éloignant de l'axe (207) autour duquel pivote le levier, est guidée entre les deux plaques planes (220, 221) et est reliée à la mâchoire (202, 203), ou à chaque aile de la mâchoire, par l'intermédiaire d'une pièce de liaison (208), en ce que le ressort (209) dont une extrémité est articulée à un point fixe du corps de fixation (201) est un ressort hélicoïdal dont l'autre extrémité est articulée à une extrémité de chaque plaque (220, 221) plane du levier, en ce qu'à l'autre extrémité du levier est monté, entre les plaques planes, sur un axe (239), un levier (238) mobile en rotation, dont un bras est en contact avec une vis (237) montée dans le premier levier (206) et qui vient, par l'intermédiaire d'un autre bras, en butée contre la pièce coulissante (210), afin de pouvoir faire coulisser cette dernière sur les bords des plaques planes (220, 221).
- Butée avant selon l'une des revendications 2, 8 et 9, caractérisée en ce que, dans le cas où le ressort est un ressort hélicoïdal (109, 209), celui-ci est emmanché sur ou dans un tube (241).
- Butée avant selon l'une des revendications 1 à 10, caractérisée en ce que les axes (4 ; 104 ; 204) autour desquels pivotent les ailes de la mâchoire convergent légèrement l'un vers l'autre vers le haut.
- Butée avant selon l'une des revendications 1 à 11, caractérisée en ce qu'elle comporte un amortisseur à fluide (258) monté en parallèle avec le ressort (209), entre un point fixe du corps de fixation et le levier (206).
- Butée avant selon la revendication 12, caractérisée en ce que, dans le cas où le ressort (109, 209) monté entre le corps de fixation (101, 201) et le levier (106, 206) est un ressort hélicoïdal, il est emmanché sur l'amortisseur à fluide (258), qui lui sert de guide.
- Butée avant selon l'une des revendications 1 à 13, caractérisée en ce qu'elle comporte un second lever (70) monté pivotant autour d'un axe (76) sensiblement parallèle à l'axe transversal (7) du premier levier (6), une première extrémité (77) de ce lever (70) étant destinée à être placée sous l'extrémité avant d'une chaussure d'un skieur et la seconde extrémité (78) de ce lever (70) étant destinée à loger dans une encoche (71) réalisée dans le premier lever (6).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9403715A FR2717705B1 (fr) | 1994-03-24 | 1994-03-24 | Butée avant pour fixation de sécurité de ski alpin. |
FR9403715 | 1994-03-24 | ||
PCT/FR1995/000338 WO1995025567A1 (fr) | 1994-03-24 | 1995-03-20 | Butee avant pour fixation de securite de ski alpin |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0750522A1 EP0750522A1 (fr) | 1997-01-02 |
EP0750522B1 true EP0750522B1 (fr) | 1998-07-29 |
Family
ID=9461561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95914385A Expired - Lifetime EP0750522B1 (fr) | 1994-03-24 | 1995-03-20 | Butee avant pour fixation de securite de ski alpin |
Country Status (6)
Country | Link |
---|---|
US (1) | US5899484A (fr) |
EP (1) | EP0750522B1 (fr) |
AT (1) | ATE168897T1 (fr) |
DE (1) | DE69503770T2 (fr) |
FR (1) | FR2717705B1 (fr) |
WO (1) | WO1995025567A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2753390B1 (fr) * | 1996-09-13 | 1998-12-11 | Salomon Sa | Element de retenue de l'avant d'une chaussure sur une planche de glisse et ensemble d'elements avant |
FR2758732B1 (fr) * | 1997-01-29 | 1999-04-16 | Look Fixations Sa | Fixation de securite a prise sur tige |
ATE243052T1 (de) * | 1997-01-29 | 2003-07-15 | Look Fixations Sa | Sicherheitsbindung an der oberseite des skistiefels |
FR2786706B1 (fr) | 1998-12-08 | 2001-02-09 | Look Fixations Sa | Fixation de ski |
US6722688B2 (en) | 2001-11-21 | 2004-04-20 | The Burton Corporation | Snowboard binding system |
FR2927818B1 (fr) * | 2008-02-26 | 2011-09-09 | Salomon Sa | Dispositif de declenchement pour fixation d'une chaussure sur un engin de glisse |
AT515560B1 (de) * | 2014-03-28 | 2016-02-15 | Tyrolia Technology Gmbh | Vorderbacken |
DE102016013104A1 (de) * | 2016-11-02 | 2018-05-03 | Skis Rossignol Sas | Skibindung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA932350A (en) * | 1970-01-16 | 1973-08-21 | F. Wilkes Donald | Ski bindings |
AT335892B (de) * | 1973-09-26 | 1977-04-12 | Smolka & Co Wiener Metall | Vorderbacken |
DE3515847C2 (de) * | 1985-05-02 | 1994-04-07 | Marker Deutschland Gmbh | Vorderbacken für Sicherheitsskibindungen |
AT385423B (de) * | 1986-08-22 | 1988-03-25 | Tyrolia Freizeitgeraete | Vorderbacken fuer sicherheitsskibindungen |
FR2610841B1 (fr) * | 1987-02-18 | 1989-10-27 | Salomon Sa | Fixation de securite a energie amortie |
DE3720440A1 (de) * | 1987-06-19 | 1989-01-05 | Geze Sport | Seitenausloesbarer vorderbacken einer sicherheitsskibindung |
FR2625911B1 (fr) * | 1988-01-15 | 1990-06-08 | Salomon Sa | Fixation de securite pour ski |
FR2642657B1 (fr) * | 1989-02-09 | 1991-05-17 | Salomon Sa | Fixation de securite pour ski destinee a maintenir l'avant d'une chaussure sur un ski |
DE3939883A1 (de) * | 1989-12-01 | 1991-06-06 | Look Sa | Sicherheitsvorderbacken einer skibindung |
-
1994
- 1994-03-24 FR FR9403715A patent/FR2717705B1/fr not_active Expired - Fee Related
-
1995
- 1995-03-20 WO PCT/FR1995/000338 patent/WO1995025567A1/fr active Search and Examination
- 1995-03-20 EP EP95914385A patent/EP0750522B1/fr not_active Expired - Lifetime
- 1995-03-20 DE DE69503770T patent/DE69503770T2/de not_active Expired - Fee Related
- 1995-03-20 US US08/702,636 patent/US5899484A/en not_active Expired - Fee Related
- 1995-03-20 AT AT95914385T patent/ATE168897T1/de active
Also Published As
Publication number | Publication date |
---|---|
EP0750522A1 (fr) | 1997-01-02 |
WO1995025567A1 (fr) | 1995-09-28 |
DE69503770D1 (de) | 1998-09-03 |
FR2717705A1 (fr) | 1995-09-29 |
US5899484A (en) | 1999-05-04 |
FR2717705B1 (fr) | 1996-06-07 |
DE69503770T2 (de) | 1998-12-03 |
ATE168897T1 (de) | 1998-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1440713B1 (fr) | Fixation a energie deportee | |
EP0025747B1 (fr) | Butée avant de fixation de ski | |
EP2674203A1 (fr) | Butée à déclenchement automatique en torsion | |
EP2929919A1 (fr) | Fixation de ski | |
EP0750522B1 (fr) | Butee avant pour fixation de securite de ski alpin | |
EP0030175B1 (fr) | Butée avant de fixation de ski | |
EP0769977A1 (fr) | Fixation de securite pour le ski de telemark, la randonnee nordique et le saut a ski | |
FR2548916A1 (fr) | Fixation de securite pour ski | |
EP1393783B1 (fr) | Fixation avant pour engin de sports de glisse | |
EP0639393B1 (fr) | Elément de fixation de ski alpin | |
EP0385944B1 (fr) | Fixation de ski de sécurité à plaque | |
FR2499863A1 (fr) | Talonniere pour fixation de ski de securite | |
FR2885532A1 (fr) | Dispositif de fixation a energie de rappel reglable | |
FR2645765A1 (fr) | Fixation de ski comportant une machoire avant et une machoire de talon, reliees par une plaque de support de semelle | |
EP1319424A1 (fr) | Dispositif de fixation sans soulèvement d'une chaussure à un article de sport | |
EP0865806A1 (fr) | Fixation de sécurité de l'extrémité avant d'une chaussure | |
EP0385946B1 (fr) | Fixation de ski de sécurité | |
FR2661334A1 (fr) | Fixation de securite pour ski. | |
EP1319425B1 (fr) | Dispositif de fixation d'une chaussure à un article de sport comportant des moyens de rappel perfectionnés | |
WO1993016770A1 (fr) | Dispositif d'appui d'une chaussure sur un ski, associe a une butee-avant de securite | |
FR2915905A1 (fr) | Dispositif de reglage de spatule d'une planche de glisse | |
EP0765680A1 (fr) | Elément et ensemble de retenue d'une chaussure sur une planche de glisse | |
FR2586580A1 (fr) | Dispositif de reglage en hauteur d'une fixation de ski, du type a declenchement multi-directionnel | |
FR2747316A1 (fr) | Element de retenue d'une chaussure sur une planche de glisse | |
EP0684861A1 (fr) | Dispositif interface destine a modifier la repartition naturelle de pression d'un ski sur sa surface de glisse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19961022 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE IT LI |
|
17Q | First examination report despatched |
Effective date: 19970213 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LOOK FIXATIONS S.A. |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PARADIS, FREDERIC |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE IT LI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19980729 |
|
REF | Corresponds to: |
Ref document number: 168897 Country of ref document: AT Date of ref document: 19980815 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69503770 Country of ref document: DE Date of ref document: 19980903 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990331 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20010228 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20010308 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020320 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021001 |