FR2736842A1 - SLIDING BOARD SUITABLE FOR SURFING ON SNOW. - Google Patents

Abstract

The device for positioning a binding on a snowboard is intended to engage into a rail portion (5) provided in the board. It comprises a central plate (3) placed on the board and intended to receive, directly or indirectly through a base, a boot retaining device; a sliding member (20) housed inside the rail portion (5) and a central stud (21) which connects the sliding member (20) to the plate (3); a friction means (22); an actuation means (23) which controls the central stud (21) translationally in order to modify the vertical position relative to the sliding member (20) inside the rail portion (5). One of the objectives is to provide a wide selection of continuous adjustment possibilities particularly in angular orientation and in longitudinal position of the plate with respect to the board.

Description

 Device for adjusting the position of a binding on a gliding board, in particular a snowboard and gliding board adapted to such a device.

 The present invention relates to a device for adjusting the position of a binding on a gliding board. It relates more particularly to a device adapted for a board of the 'Snowboard' type.

 The invention also relates to a snowboard equipped according to the device.

 The practice of snowboarding is done using an elongated board, whose front end, at least, is raised to form the spatula. The two shoes of the user are immobilized on the board by suitable retaining elements. The positions adopted for the practice of this sport are very variable depending on the disciplines practiced, the level or habits of the user, or depending on its morphology. For example, for the practice of certain disciplines oriented towards the research of the realization of figures, such as the "free style" or the practice "out of limit" such as the "free ride", the feet are widely separated one on the other and are very inclined to the longitudinal axis of the snowboard in a substantially transverse position, generally not parallel to each other.On some boards totally symmetrical with respect to the median transverse axis, the surfers adopt a position of feet called "duck" to allow the practice indifferently in one direction or another.

 On the contrary, for the practice of slalom or speed disciplines, the feet are less apart from each other and approach, in inclination, the median longitudinal axis.

 To meet this diversity of adjustment, current systems are not entirely satisfactory. One of the most common is to provide, on the surf several rows of threaded holes for the passage of screws for immobilizing a generally circular plate; the plate itself itself a mounting base in a specific angular position. Patent AT 1387/92 discloses an adjustment system of this type for the support of a snowboard binding. According to this device, the choice of positions is limited, especially in the longitudinal direction of the board. Similarly, the adjustment requires the use of a tool such as a screwdriver and thus makes handling long and tedious, and therefore generally impossible in the field.

These devices are also not suitable for rental where the ease and speed of adjustment are preponderant.

 One of the aims of the present invention is therefore to propose a device for adjusting the position of a fastener which actually provides a wide choice of adjustment possibilities, in particular in angular orientation and in longitudinal position while remaining easily and quickly operable without having of particular tools.

 Another object of the invention is to propose a device which adapts, in particular in snowboarding, to most current attachment base systems which uses the standard 4x4 standard thus serving as an adjustment interface between snowboarding. and the base.

 The present invention also relates to a snowboard particularly suitable for receiving the position adjustment device according to the invention.

 One of the goals is therefore also to propose a snowboard with an integrated adjustment device that adapts to most current attachment base systems used. In addition, the board offers a continuous adjustment range in longitudinal position to obtain an adaptation to different disciplines practiced in snowboarding.

 Another object of the invention is also to provide a snowboard which has a high resistance to tearing fasteners in the hardest conditions of use.

To meet these and other objects, the present invention is a device for adjusting the position of a binding on a gliding board intended to cooperate in a rail portion formed in the board, characterized in that what he understands
- A central plate resting on the board for receiving directly or indirectly via a base, a device for retaining a shoe
a sliding member housed inside the rail portion and a central rod which connects the sliding member to the plate
a friction means disposed between the central plate and the surface of the board
an actuating means which controls the central rod in translation in order to modify the relative vertical position of the sliding member inside the rail portion; between a position released from the plate in rotation and in translation along the rail portion and a clamping position during which the lower surface of the plate compresses the friction means against the upper face of the board.

Various embodiments illustrate the invention which will be better understood by reference to the following detailed description, as well as to the related drawings of which
- Figure 1 is a general elevational view of a snowboard with integrated adjustment device according to the invention
FIG. 2 is a view in longitudinal section along AA of the device of FIG. 1 according to a first embodiment
FIG. 3 is a detailed elevational view of the device of FIG. 2;
FIG. 4 is an exploded perspective view of the device of FIGS. 2 and 3;
FIG. 5 is a schematic view of the principle of operation of the device of FIGS. 2 to 4 before clamping
FIG. 6 is a schematic view similar to that of FIG. 5 after tightening
- Figure 7 is a sectional view AA according to a variant of the invention;
FIG. 8 is a detailed elevational view of the variant of FIG. 7
FIG. 9 is a view in section AA of a second variant of the invention
FIG. 10 is a view from above of the variant of FIG. 9
- Figure 1 1 is a schematic view of the operating principle of the variant of Figures 9 and 10 before tightening
FIG. 12 is a schematic view similar to that of FIG. 11 after tightening
- Figure 13 is a cross-sectional view of the plate of Figure 1 along line BB.

 Figure 1 shows a snowboard 1 equipped with two position control devices 2 according to the invention. Each device is intended to receive a fixation for the immobilization of a shoe (not shown). Different types of fasteners can be adapted to such a device for retaining rigid-shelled shoes or soft-type boots. It is therefore not within the spirit of the present invention to limit itself to the use of a particular type of fastener.

 In the embodiment shown, each device comprises a central plate 3 connected to the board by a particular mechanism which will be described later. A base 4 whose main function is to support the retaining means of the shoe is shown in dashed lines as an example. The base is secured to the plate and is oriented along a main axis O forming an angle of inclination with respect to the longitudinal axis (I-I '). One of the objects of the invention is to be able to vary the angle of inclination a, at will, by releasing the central plate 3 in rotation and providing a quick locking mechanism in the desired angular position.

 The snowboard also comprises two portions of rails 5 arranged along the longitudinal axis (I-I ') and spaced apart from each other. The length of each rail portion and the spacing therebetween are easily determinable parameters by those skilled in the art to cover all, or at least most, of the usual settings used and sought by users. Another object of the invention is therefore also to be able to vary the longitudinal position of the central plate 3 relative to the board over the length of the rail portion provided, at the same time as the angular adjustment is obtained and without additional manipulation.

 It is preferable to provide for each device, a separate rail portion and separated so as to influence as little as possible the free flexion of the board. On the other hand, it is conceivable that each portion is not oriented strictly along the axis (I-I ') but on the contrary is slightly offset and parallel, or inclined relative thereto.

 According to the first embodiment of FIGS. 2 to 4, the adjusting device 2 comprises a disk-shaped central plate 3 provided with a lower surface 30 in contact with a friction means 22; itself in contact with the upper surface 10 of the board. A sliding member 20 is housed inside the rail portion 5 and is connected to the central plate by a central rod 21 fixedly secured to the sliding member 20. The central plate 3 is provided with a top surface receiver 31 for receiving a mounting base (not shown), a central housing 32; and inside thereof a central bore 33 for the passage of the central rod 21.

The central rod 21 is mounted free in vertical translation in the bore 33 of the plate.

 An actuating means 23 controls the central rod 21 in vertical translation. The central rod 21 comprises a threaded portion 212 on which is screwed threaded adjustment means 232 such as a simple nut for example. A washer 233 is disposed between the adjusting means 232 and the plate. The actuating means comprises a cam eccentric member 230 pivotally mounted on the threaded adjusting means 232 by two radial pins 234.

 In this mode, the eccentric cam member is connected indirectly to the central rod by a pivot link and manually operable by means of a lever 231 secured to the member to move the rod 21 in axial translation through the bore 33 upwards to reach the clamping position and vice versa downwards to reach the released position.

 The threaded adjustment means 232 serves to make it possible to adjust the clamping force in the clamping position of the plate.

 The central housing 32 has a sufficient depth relative to the surface 31 to contain the actuating means 23 without exceeding the lever 231 when the latter is in the retracted position corresponding to the clamping position of the plate.

The operation of the device is as follows in the unlocked position, shown in FIG. 5, the lever 231 is raised, so that the cam eccentric member which is integral with it is disengaged from the surface of the central plate 3 The plate being mounted by a sliding pivot connection on the rod 21 can then be oriented in the desired angular position. Similarly, without clamping force,
The sliding member, or slider 20, is released in translation in the rail portion, also for moving the entire device in the chosen direction A or B.

 The locked position of Figure 6 is obtained by lowering the lever 231 in its retracted position. This rotates the eccentric member 230 which bears on the central plate 3; which moves the central rod 21 upwards and forces the slide 20 to go up in the rail portion. In the clamping position, the eccentric member exerts a tensile force on the rod and thus on the slide, relying on the plate which compresses the friction means 22 on the surface of the board. In this configuration, the longitudinal displacement of the slide in the rail and the angular displacement of the plate are no longer allowed. The tightening can be controlled by threaded adjustment means 232 before lowering the lever.

By screwing, the cam is brought closer to the eccentric member of the surface of the plate along the central rod, and thus the tightening is increased.

 Figures 7 and 8 illustrate a second embodiment of the invention. The only significant change from the previous mode is from the actuating means 23 which is different.

 There is a disk-shaped central plate 3 in contact with a friction means 22. A sliding member 20 is housed inside the rail portion 5 and is connected to a central rod 21 integrally. The central rod passes through the central bore 33 of the plate. It is freely mounted in axial translation relative to the plate by a slide connection. To allow a transmission of the vertical movement, the rod is locked in rotation by a flat 211.

 The actuating means 23 has a lever 231 which rotates an annular ramp member 234 mounted by a sliding pivot connection relative to the central rod 21 and acting on one or more radial pins 210 of the central rod to move the in axial translation upwards to reach the clamping position and, conversely downwards, to reach the released position.

 As shown in Figure 8, the central rod is provided with two lugs 210 radially opposite. The annular ramp member has, for its part, two ramp surfaces 234a for guiding the lugs and which each have a progressive slope ending in a high position by a radial recess 234b for locking each lug in the clamping position of the lug. platinum.

 As in the previous mode, the central plate 3 has an upper receiving surface 31 and a central housing 32 of sufficient depth relative to the upper surface, to contain the annular ramp member without exceeding, neither thereof nor the end of the central rod relative to the upper receiving surface 31 when the locking high position is reached.

 The device comprises a second housing 34 formed under the plate, set back relative to the lower surface 30 of the plate in contact with the friction means, which communicates with the central housing 32 on the one hand and which opens out through an opening 34a on the side of the plate on the other hand. The lever, meanwhile, is provided with an arm 231a which connects the annular ramp member 234 through said housing and which extends out of the opening 34a by a handle 231b rotatable.

 Since the device is not adjustable, an elastic means is provided, such as one or more Belleville washers 24, housed in the rail portion and which oppose an elastic resistance to compression to hold the sliding member in position. pressure. More specifically, the washer 'Belleville' is simply mounted through the central rod and housed between the slide 20 and a bearing washer 25 whose width is chosen greater than the opening 50 of the rail.

 The clamping passage of the device to the released position, and vice versa, is simply by actuating the lever 231b of the lever by a rotation of about a quarter of a turn.

 Figures 9 and 10 detail another variant of the invention with an actuating lever offset from the plate; which has the advantage of allowing adjustment without having to clear the shoe of the integral retaining means directly or indirectly the plate.

 The device has an actuating means 23 which comprises a transmission element 235 housed, at least in part, in the rail portion 5. The element is connected to the central rod 21 by a sliding pivot connection. It has a first elongate portion 235a which ends with a support means 236 offset by a distance dl relative to the axis of the central rod. The support means 236 is in the form of a cylindrical portion of greater width than the opening 40 of the rail.

The actuating means has a second elongated portion 235b which extends on the opposite side to the first portion, and is connected by an offset clamp member 237 located at a distance d2 from the axis of the rod. The distance d1 of the first portion 235a is smaller than the distance d2 of the second portion 235b, so that the clamping action of the offset clamping member 237 causes a lever effect that moves the central rod 21 in translation. axial down to the clamping position of the plate.

 To improve the leverage generated, the transmission element 235 comprises, between the two elongated portions 235a, 235b, a bearing disc 235c, through which the central rod passes. The disc 235c bears against the sliding member 20 to push it downwards, by leverage generated during the clamping action of the shifted clamping means 237.

The shifted clamping means 237 comprises
a second sliding member or slider 237a housed inside the rail portion
a rod 237b fixed to the sliding member 237a and extending outside the rail and through the second elongated portion 235b, freely translational
a cam eccentric member 237c connected to the rod by a pivot connection and actuable by means of a lever 237d integral with said member to move the rod in axial translation upwards to reach the clamping position, and vice versa, towards down to reach the liberated position.

 The rod 237b is provided with a threaded portion on which is screwed a threaded adjustment means 237e. The eccentric member 237c is pivotally mounted directly on the threaded adjustment means by means of two radial pins 237f.

 The adjustment means 237e may be a hexagon nut for example.

 Its function is to allow the adjustment of the clamping force of the clamping means 237.

 The central rod 21 of the device is also provided with a threaded upper portion 212a. It is locked in translation relative to the plate by an adjustable threaded element 212b, of the nut type for example.

This element allows a game play of the device. The threaded element takes place in a central housing 32 large enough to be manipulated by means of a tool such as a key.

 The operating principle is illustrated by the schematic figures 11 and 12.

 Figure 11 shows the device in a lock configuration. The lever 237d of the shifted clamping member 237 is in the retracted position; which has the effect of placing the cam of the eccentric member 237c in a bearing position on the end of the second elongated portion 235b, which thereby moves downwardly and approaches the sliding 237a which moves it upwards by driving in translation of the rod 237b. The downward pressure on the end of the second elongate portion is transmitted upwardly to the support end 236 and in a greater pulling force due to the lever effect on the rod. central unit which tends to bring the plate to the surface of the board and to compress the friction means 22.

In the unlocked position, the lever is in the up position; so that the cam of the eccentric member 237c no longer applies clamping force to the end of the second elongate portion 235b. Thereby,
The pulling force downwards exerted on the slider disappears, which releases the device in translation, and the plate which no longer exerts compression on the friction means is released, in turn, in rotation. The entire device including the offset clamping member can be moved in translation in the rail portion in the desired direction A or B.

 In all the modes shown, the friction means plays an important role since its function is to create between the lower surface of the plate and the upper surface of the board, an interface that when subjected to a compressive force , participates in the immobilization of the turntable in rotation by friction effect.

 Such means may consist of a disc made of material selected from those having significant compressibility and elasticity properties. Among the materials likely to agree; natural and artificial rubbers, some plastics, cork and felt are particularly noteworthy. Of course, the disk constituting the friction means may be glued or screwed onto the lower surface of the plate or on the upper surface of the board to facilitate the movement of the device in the rail portion.

 In the illustrated examples, the plate has the form of a disk provided with at least four threaded holes 3a, 3b, 3c, 3d forming a quadrilateral for receiving a suitable mounting base (FIGS. 3 and 4).

 Preferably, the holes are separated in pairs by a distance of 4 cm to meet the usual snowboard standard.

 Of course, the deck may take other forms than that of a disc. For example, it may be an elongated plate substantially identical to the sole of a shoe for the direct reception of a snowboard binding type 'shell' or other.

 As shown in FIG. 13, each rail portion consists of a profiled element 6 having a substantially rectangular transverse profile.

 It comprises a channel 60 delimited by a bottom wall 61, two side walls 62, 63 connected to the bottom wall and two upper edges 64, 65 which oppose to form an opening 66 of width I less than the greatest width L of the channel. Instead of a rectangular shape, the profile can be chosen trapezoidal, for example.

The profiled member also includes anchor lateral edges 67, 68 which extend the bottom wall and extend outwardly, to improve the strength of the anchor in the board structure.

 Of course, the present invention is not limited to the embodiments that have been explicitly described, but it includes the various variants and generalizations contained in the scope of the claims below.

Claims (19)

 1-Device for adjusting the position of a binding on a gliding board intended to cooperate in a rail portion (5) formed in the board, characterized in that it comprises  - A central plate (3) resting on the board for receiving directly or indirectly via a base, a device for retaining a shoe  - a sliding member (20) housed inside the rail portion (5) and a central rod (21) which connects the sliding member (20) to the plate (3)  a friction means (22) disposed between the central plate (3) and the surface of the board  an actuating means (23) which controls the central rod (21) in translation to modify the relative vertical position of the sliding member (20) inside the rail portion (5); between a position released from the plate in rotation and in translation along the rail portion and a clamping position during which the lower surface (30) of the plate compresses the friction means against the upper face of the board.  2- adjusting device according to claim 1, characterized in that the actuating means (23) has a cam eccentric member (230) connected to the central rod (21) by a pivot connection and operable manually by means a lever (231) integral with said member to move the rod (21) in axial translation upwards to reach the clamping position and, conversely downwards to reach the released position.  3- adjusting device according to claim 2, characterized in that the actuating means comprises a threaded adjustment means (232) on which is pivotally mounted the cam eccentric member (230); the threaded adjustment means (232) being screwed in an adjustable position on a complementary threaded portion (212) of the central rod (21) to allow the clamping force to be adjusted in the clamping position of the plate (3).  4- adjusting device according to claim 2 or 3, characterized in that the central plate (3) has an upper receiving surface (31) and a central recess (32) of sufficient depth relative to said surface (31) for contain the actuating means (23) without exceeding the lever (231) when it is in the retracted position corresponding to the clamping position of the plate.  5- adjusting device according to claim 1, characterized in that the actuating means (23) has a lever (231) which rotates an annular ramp member (234) mounted by a sliding pivot connection relative to the central rod (21) and which acts on one or more radial lugs (210) of the central rod (21) to move the latter in axial translation upwards to reach the clamping position and, conversely downwards, to reach the liberated position.  6. Adjusting device according to claim 5, characterized in that the central rod (21) is provided with two radially opposite lugs (210) and in that the annular ramp member (234) has two ramp surfaces (234a). ) each having a gradual slope ending in the upper position by a radial recess (234b) for locking each lug in clamping position of the plate.  7- Device according to claim 6, characterized in that the central plate (3) has an upper receiving surface (31) and a central recess (32) of sufficient depth relative to said surface, for containing the ramp member annular (234) and without exceeding either thereof, or the end of the central rod (21) relative to the upper receiving surface (31) when the upper locking position is reached.  8- adjusting device according to claim 5, 6 or 7, characterized in that a second housing (34) is provided under the plate, recessed relative to the lower surface (30) of the plate in contact with the means friction (22), which communicates with the central housing (32) on the one hand and which is opening through an opening on the side of the plate on the other hand; the lever (231) of the actuating means (23) being provided with an arm (231a) connecting the annular ramp member (234) through said housing (32) and extending out of the opening (34a) by a handle (231b) operable in rotation.  9- adjusting device according to any one of claims 5 to 8, characterized in that an elastic means (24) is housed in the rail portion (5) which opposes an elastic resistance to compression to maintain the organ slide (21) under pressure.  10- adjusting device according to claim 1, characterized in that the actuating means (23) comprises a transmission element (235) housed in part at least in the rail portion (5) connected to the central rod (21). ) by a sliding pivot connection, having a first elongated portion (235a) terminated by an offset bearing means (236) a distance dl from the center rod axis of a second elongated portion (235b ) which extends on the opposite side to the first portion and is connected by an offset clamp member (237) located at a distance d2 from the axis of the rod (21), with dl <d2; such that the clamping action causes a lever effect which moves the rod in axial translation down to the clamping position of the plate.  11- An adjusting device according to claim 10, characterized in that the transmission element (235) comprises, between the two elongate portions (235a, 235b), a support disc (235c) through which the central rod passes (21); said disk bearing against the sliding member (20) to push it down, by the lever effect generated during the clamping action of the shifted clamping means (237).  12- An adjusting device according to claim 10 or 11, characterized in that the shifted clamping means (237) comprises  a second sliding member (237a) housed inside the rail portion (5)  - a rod (237b) fixed to the sliding member (237a) and extending outside the rail and through the second elongate portion (235b), freely translational  - A cam eccentric member (237c) connected directly or indirectly to the rod (237b) by a pivot connection and manually operable by means of a lever (237d) integral with said member for moving the rod in axial translation (21). up to reach the clamping position, and vice versa down to reach the released position.  13- An adjusting device according to claim 12, characterized in that the shifted clamping means (237) comprises a threaded adjustment means (237e) on which is pivotally mounted the cam eccentric member (237c); the threaded adjustment means (237e) being screwed in an adjustable position on a threaded portion of the rod (237b) to allow the clamping force of the clamping means to be adjusted.  14- adjusting device according to any one of claims 10 to 13, characterized in that the central rod (21) is provided with a threaded upper portion (212a), locked in translation relative to the central plate by an element adjustable thread (212b) to allow a clearance of play of the device.  15- adjustment device according to any one of the preceding claims, characterized in that the friction means (22) consists of a deformable and elastic material element selected from natural and artificial rubbers, some plastics, cork, and the felt.  16- An adjusting device according to any one of the preceding claims, characterized in that the central plate (3) has the shape of a disk provided with at least four threaded holes forming a quadrilateral for receiving a base plate. suitable fixation.  17- Snowboard board equipped with an adjusting device according to any one of claims 1 to 16, characterized in that it comprises two rail portions (5) arranged substantially along the longitudinal axis (I-I ') and spaced apart from each other.  18- snowboard according to claim 17, characterized in that each rail portion (5) consists of a profiled element (6) having a substantially rectangular or trapezoidal profile which comprises a channel (60) delimited by a wall of bottom (61), two sidewalls (62, 63) connected to the bottom wall (61) and two top edges (64, 65) which oppose each other inwardly to form an opening (66) of width (I) less than the largest width (L) of the channel (60).  19- snowboard according to claim 18, characterized in that the profiled element (6) comprises lateral anchoring edges (67, 68) which extend the bottom wall (61) and extend outwardly .