EP0823268A1 - Device for holding a boot on a snowboard - Google Patents

Abstract

A boot retainer (1) consists of a base (3) with a fixing (6) which holds in onto the snow-board (2). It also comprises a mechanism of adjusting its position, allowing the base to be rotated to any angle or moved in any direction parallel to the board's surface. The retainer has a plate (4) between its base and the board, fastened to the board by fixings (7-10) and made with a central threaded hub to receive the threaded shank of the retainer's fixing. The base of the retainer has a square aperture (47) with rounded corners which allows it to be adjusted relative to the hub and fixed in the required position. The plate and fixing are made from a metal such as steel, while a washer (5) between the fixing and the base can be made from a low friction metal such as bronze, a coated aluminium or a plastics such as PTFE, with or without reinforcement.

Description

The invention relates to the field of restraint devices a shoe on a sliding board intended for practice snowboarding, and more specifically concerns positioning of the devices on the board.

Snowboarding is done with needs different from one user to another, especially with regard to concerns the position of the feet on the board.

User must be able to adjust the position of each shoe retainer, so that drive the board with precision and in good conditions of security.

The prior art has proposed retaining devices for a shoe on a board.

For example, document US 5,236,216 describes a device comprising a plate clamped on a board by a disc and screws. Each screw cooperates with an insert integral with the plank so that tightening the screws urges the disc towards the plate, which is in turn immobilized by friction at board contact. This device allows adjustment in rotation of a shoe secured to the plate because the plate is guided in rotation by the disc. These measures also allows adjustment in a direction of translation of the shoe, by means of oblong holes in the disc.

However, the device according to document US 5,236,216 has disadvantages. First, the device allows adjustments in translation in a single direction substantially parallel to the board, which prevents the user from adjusting the positions shoes both lengthwise and in the the width of the board.

On the other hand, the large number of disc retaining screws makes the setting is quite long and tedious.

On the other hand, the inserts which receive the screws disk retainers wear out fairly quickly as they are requested at each setting. When worn, the inserts no longer allow the device to be secured. It follows that the board is unusable.

The invention aims to remedy these drawbacks.

For this, the invention provides a device for retaining a shoe on a gliding board, the device comprising a shoe receiving base, at least one means of tightening urging the base towards the board.

The device according to the invention is characterized by the fact that it comprises at least one means for positioning the base relative to the board both in translation throughout direction substantially parallel to the board, and in rotation at any angle from an axis substantially perpendicular to the board.

This structure allows the user to adapt the positions shoes both lengthwise and in the the width of the board.

According to one embodiment, the device according to the invention includes a plate interposed between the board and the base, at minus a clamping means maintaining the base on the plate, other clamping means keeping the plate on the board, and is characterized by the fact that it comprises on the one hand means for positioning the plate on the board in translation in two directions substantially parallel to the board, and secondly means for positioning the base relative to the plate both in translation in any direction substantially parallel to the board and in rotation at any angle to an axis substantially perpendicular to the board.

This structure makes it possible to preposition the device on the board by positioning the plate at a favorite place on the board. Then the user can adjust the timing of the device by modifying the position of the base on the plate. It follows that the settings for position of the device essentially wear the plate. As the plate is an intermediate piece, it is advantageously possible to change in case of wear, without having to change the board.

The device according to the invention is also characterized by the fact that the means for positioning the plate on the board include at least two sets of defined holes in the plate for the passage of screws and a set of holes threaded defined in the board to accommodate the screws, each assembly having the same arrangement of the orifices one by compared to others.

In this way, it is advantageously possible to position the plate on the board in at least two directions separate.

Preferably, each set of orifices comprises four orifices located respectively at the four corners of a square. he It follows that the mounting of the plate on the board is simple.

More preferably, the plate comprises five sets orifices, the five sets of orifices being arranged one compared to others so as to form four groups identical of five orifices, each of the five orifices of a group belonging to a different set of orifices.

This arrangement allows you to preset the position of the device on the board.

For each group of orifices, four orifices are located at the four corners of a square and an orifice is located in the center of the square. Therefore, the preset position of the device on the board is done in two directions perpendicular, which can correspond to the length and the width of the board.

Finally, the orifices of the same set of orifices are located on the sides of the square 40mm from each other, and the holes of each group are spaced two by two by 10mm according to the diagonals of the square.

In this way, the device according to the invention adapts to standard commercial boards, and allows a prepositioning plus or minus ten millimeters in two directions relative to a reference point of the board.

The device according to the invention is further characterized by the fact that the means for positioning the base on the plate include a protruding shoulder of the plate, the shoulder coming to be housed in an orifice of the base, the orifice being larger than the shoulder.

This structure makes it possible to position the base relative to the plate both in translation and in rotation, in any direction.

Preferably, the orifice of the base has a square shape with rounded corners. A screw screwed into the plate crosses the orifice of the base by a threaded part and bears on the base by a head, to hold the base on the plate. As the base is tightened on the plate by a single screw, the Adjustment operations are quick and easy.

It is desirable that a washer be inserted between the screw head and base, so as to improve the quality of the Tightening.

Preferably finally, the coefficient of friction between the washer and base is less than the coefficient of friction between the base and the plate. This arrangement allows stronger clamping of the base on the plate.

The invention also relates to a board comprising the device.

• la figure 1 est une vue en perspective éclatée d'un dispositif selon l'invention,
• la figure 2 est une coupe partielle de la figure 1,
• la figure 3 est une coupe partielle du dispositif dans une position d'utilisation,
• la figure 4 est un schéma qui donne un exemple d'orientation du dispositif,
• la figure 5 est similaire à la figure 4 et correspond à une autre orientation du dispositif,
• la figure 6 est une vue en élévation de la platine selon une variante,
• la figure 7 est une vue en élévation de la platine selon une autre variante.

Other characteristics and advantages of the invention will be better understood with the aid of the description which follows, with reference to the appended drawing illustrating, by a non-limiting example, how the invention can be implemented and in which:

• FIG. 1 is an exploded perspective view of a device according to the invention,
• FIG. 2 is a partial section of FIG. 1,
• FIG. 3 is a partial section of the device in a position of use,
• FIG. 4 is a diagram which gives an example of orientation of the device,
• FIG. 5 is similar to FIG. 4 and corresponds to another orientation of the device,
• FIG. 6 is an elevation view of the plate according to a variant,
• Figure 7 is an elevational view of the plate according to another variant.

A device 1 for retaining a shoe on a board slide 2 is shown in exploded perspective in Figure 1. The device 1 comprises a base 3 intended to receive the shoe not shown by a user, the base 3 being held on board 2 using a plate 4, a washer 5 and a screw 6.

The plate 4 is secured to the plate 2 by means of joining made in the form of four screws 7, 8, 9, 10 passing through the orifices of the plate 4 to be housed in threaded inserts not shown in plate 2.

The orifices of the plate 4 are divided into four groups 11, 12, 13, 14, each group 11, 12, 13, 14 including five orifices.

For example, group 11 has five cylindrical holes 15, 16, 17, 18, 19 arranged as follows: the axes of the orifices 15, 18 and 19 delimit the four corners of a square of 20 millimeters aside, the orifice 17 being placed in the center of the square. In this way, the central opening 17 of group 11 is located 10mm from each of the other ports 15, 16, 18 and 19.

Similarly, group 12 includes five orifices cylindrical 20, 21, 22, 23, 24, the orifice 22 being central, the group 13 includes five cylindrical orifices 25, 26, 27, 28, 29, the hole 27 being central, and the group 14 comprises five cylindrical orifices 30, 31, 32, 33, 34, the orifice 32 being central.

Each central opening 17, 22, 27 and 32 of groups 11, 12, 13, 14 is arranged at the four corners of a 40-millimeter square side to form a first set of holes.

In FIG. 1, the screws 7, 8, 9, 10 pass respectively to through the central holes 17, 22, 27, 32 of groups 11, 12, 13, 14.

Groups 11, 12, 13 and 14 are oriented on plate 4 of so as to be able to offset the plate 4 relative to the plate 2 more or less 10mm in a first direction, and more or less 10mm in a second direction substantially perpendicular to the first. This is why the orifices are aligned by six. For example, holes 15, 17, 18 of the group 11 are aligned with the orifices 20, 22, 23 of the group 12.

Likewise, the orifices 30, 32, 33 of group 14 are aligned with the holes 25, 27, 28 of group 13. The holes 29, 27, 26 of group 13 are aligned with the orifices 24, 22, 21 of the group 12.

Finally, the holes 34, 32, 31 of group 14 are aligned with the orifices 19, 17, 16 of group 11.

We can therefore move the plate 4 relative to the plate 2 in four different ways from that shown in Figure 1. Just remove the four screws 7, 8, 9, 10 arranged in the first set of holes to put them in one of the four other sets which are successively: a assembly comprising the holes 18, 23, 28 and 33 taken respectively in groups 11, 12, 13, 14, a set comprising the openings 19, 24, 29, 34, an assembly comprising the orifices 15, 20, 25, 30, or a set comprising the holes 16, 21, 26, 31. Then, just tighten the screws 7, 8, 9, 10 in the threaded inserts of plate 2 so that the plate 4 finds itself in a preset position on the plate 2.

In addition, it is planned to adjust the position of the base 3 relative to the plate 4 as explained using Figures 2 and 3.

Figure 2 is a partial section of Figure 1 passing through the orifices 27 and 17 of the plate 4 in a plane substantially perpendicular to the board 2.

We find in Figure 2 the screw 6, the washer 5, the base 3, the plate 4 and the board 2. The screw 6 can be screwed or unscrewed with different tools cooperating with means of screw 6 connection to tools.

For example, the tool may be a cooperating hexagon wrench with a hexagon socket 35 of the screw, or even a wrench pins cooperating with two holes 36, 37 of the opposite screw diametrically with respect to an axis of rotation 38 of the screw 6. The cavity 35 and the orifices 36, 37 are defined on one side 39 of the screw which faces the shoe not shown of the user.

A face 40 of the screw 6 opposite the face 39 has a circular groove 41 for retaining the washer 5 against the face 40, as well as a central threaded shoulder 42 provided for cooperate with plate 4. The thickness of the material included between the faces 39 and 40 of the screw 6 delimits the head of the screw 6.

For its part the plate 4 is a piece of revolution having, in addition to the positioning holes on the board 2 previously described, a face 43 on the side of the board 2, a face 44 opposite the face 43, a projecting shoulder 45 on the face 44, and a central threaded orifice 46 crossing the plate 4 and the shoulder 45. The orifice 46 and the shoulder 45 have a common axis which merges with the axis 38 of the screw 6 when device 1 is assembled.

The base 3 is made so as to cooperate with the plate 4 and screw 6. To do this, it is crossed by an orifice 47 whose diameter is greater than the diameter of the shoulder 45 of the plate 4. A counterbore 48 is provided in a face 49 of the base 3 located on the side of the screw 6 to accommodate the washer 5 and the head of the screw 6. A counterbore 50 is provided in a face 51 of the base 3 located on the side of the board 2 for accommodate plate 4. Lamination 48, orifice 47 and counterbore 50 are coaxial.

The device 1 is shown in section in a position set in Figure 3.

The screw 6 is tightened in the plate 4 which is itself immobilized on board 2. Screw 6 urges base 3 towards plate 2 and plate 4 via the washer 5 interposed between the head of the screw 6 and the bottom of the counterbore 48 of the base 3. It follows that the base 3 is immobilized by compared to plate 2 by friction on plate 2 and / or on the face 44 of the plate 4.

For convenience, the screws and inserts of the board 2 for securing the plate 4 to the board 2 are not shown.

The diameter of the counterbore 48 is greater than that of the head of the screw 6, and the diameter of the counterbore 50 is greater than that of plate 4. This is why the base 3 is movable relative to the board 2 when the screw 6 is loose. Preferably, respective diameters of counterbore 48, orifice 47 and counterbore 50 of the base 3 are provided so that the displacement of the base 3 relative to the plate 4 is limited by contact a wall 52 of the orifice 47 of the base 3 on the shoulder 45 of deck 4.

It is thus possible, when the screw 6 is loose, to move the base 3 in a plane substantially parallel to the plate 2 according to a limited travel. It is also possible orient the base 3 in rotation at any angle by relative to an axis substantially perpendicular to the plate 2.

To summarize, the structure of the device 1 allows a infrequent preset and additional settings more frequent position of the shoe in relation to the plate 2.

Figures 4 and 5 schematically give two examples orientation of the base 3 of the device 1. Each example corresponds to a frozen position of plate 2 and to a preset position given for stage 4.

Figure 4 shows the base 3 positioned so that the shoulder 45 of the plate 4 is in contact with the wall 52 orifice 47 of the base 3. When the screw 6 not visible on Figure 4 is tight, the base 3 remains in this position.

If you loosen the screw 6, you can move the base 3 for the put in any other position, like the one shown in figure 5.

In this case, the shoulder 45 of the plate 4 is not in contact with the wall 52 of the orifice 47 of the base 3. The positioning of the base 3 according to FIG. 5 differs from its positioning according to Figure 4 both in translation parallel to plate 2 and rotating along an axis perpendicular to the board 2.

Device 1 can be made with all materials known to those skilled in the art according to any suitable technique. Of preferably, the plate 4 and the screw 6 are produced from metals or metallic alloys such as steel alloys. The washer 5 is made of a material with a low coefficient of friction like a bronze alloy, an aluminum washer the surface of which is chemically treated to include anti-adhesion products, a reinforced plastic material or not such than polytetrafluoroethylene.

The base 3 is preferably made of plastic material injected. It may be planned to add layers of material or to mechanically or chemically treat parts of the device 1 so as to control the friction conditions pieces on top of each other.

As shown in Figure 6, the plate 4 may have lights 110, 120, 130, replacing the groups of orifices, to facilitate adjustment in two directions perpendicular without having to carry out the operations of complete loosening / re-tightening of the screws. The number of lights may be variable. For good support of the plate on the board, two lights, at least are necessary. Sure the example of figure 5, three lights 110, 120, 130 are provided in the shape of a cross and arranged in a triangle across platinum.

Figure 7 shows another variant in which four lights 111, 121, 131, 141, are provided in the form of L allowing continuous adjustment in three separate portions of the plate on the board on each series of orifice on the board.

Of course, the invention is not limited to the mode of realization thus described, and includes all the equivalents techniques which may fall within the scope of the claims which will follow.

In particular, we can provide different values dimensions of the parts of the device 1 to adapt the operating ranges.

The shape of the orifice 47 of the base 3 can be circular, elliptical or other.

Any known retaining element of a shoe on a base can be used, and the base can be very different from that shown in Figure 1.

We can also plan to interpose a raised layer of device 1 between board 2 and device 1.

Claims (16)

Device for retaining (1) a shoe on a board gliding (2), the device (1) comprising a base (3) receiving the shoe, at least one tightening means (6) urging the base (3) towards the board (2), characterized in that that it comprises at least one means for positioning the base (3) relative to the board (2) both in translation in any direction substantially parallel to the board (2), and rotation at any angle to an axis substantially perpendicular to the board (2). Retaining device (1) according to claim 1, comprising a plate (4) interposed between the board (2) and the base (3), at least one clamping means (6) now the base (3) on the plate (4), other clamping means (7, 8, 9, 10) holding the plate (4) on the board (2), characterized in that it comprises on the one hand means of positioning of the plate (4) on the board (2) in translation in two directions substantially parallel to the board (2), and on the other hand means for positioning the base (3) relative to the plate (4) both translation in any direction substantially parallel to the board (2) and rotating at any angle by relative to an axis substantially perpendicular to the board (2). Retaining device (1) according to claim 2, characterized in that the means for positioning the plate (4) on the board (2) include at least two sets orifices defined in the plate (4) for the passage of screws (7, 8, 9, 10) intended to cooperate with a set of orifices threaded defined in the plate (2). Retaining device (1) according to claim 3, characterized in that each set of ports includes four orifices located respectively at the four corners of a square. Retaining device (1) according to claim 3 or 4, characterized in that the plate (4) comprises five assemblies orifices. Retaining device (1) according to claim 5, characterized in that the five sets of ports are arranged in relation to each other so as to form four identical groups (11, 12, 13, 14) of five orifices, each of five orifices of a group (11, 12, 13, 14) belonging to a different set of orifices. Retaining device (1) according to claim 6, characterized in that for each group (11, 12, 13, 14) orifices, four orifices are located at the four corners of a square and an orifice is located in the center of the square. Retaining device (1) according to any one of Claims 4 to 7, characterized in that the orifices of a same set of holes are located on the sides of the square to 40mm from each other, and in that the orifices of each group (11, 12, 13, 14) are spaced two by two by 10mm depending on the diagonals of the square. Retaining device (1) according to claim 2, characterized in that the means for positioning the plate (4) on the board (2) comprise at least two lights (110, 111, 120, 121, 130, 131, 141) intended to cooperate with a set of threaded holes defined in the plate for allow adjustment of the plate (4) on the board in two substantially perpendicular directions. Retaining device (1) according to claim 9, characterized in that each light has the shape of a cross (110, 120, 130) or an L-shape (111, 121, 131, 141). Retaining device (1) according to claim 2, characterized in that the means for positioning the base (3) on the plate (4) comprise a protruding shoulder (45) of the plate (4), the shoulder (45) coming to be housed in a orifice (47) of the base (3), the orifice (47) being larger than the shoulder (45). Retaining device (1) according to claim 11, characterized in that the orifice (47) of the base (3) has a shape square with rounded corners. Retaining device (1) according to claim 11 or 12, characterized in that a screw (6) screwed into the plate (4) passes through the orifice (47) of the base (3) by a threaded part (42) and is supported on the base (3) by a head, to hold the base (3) on the plate (4). Retaining device (1) according to claim 13, characterized in that a washer (5) is interposed between the screw head (6) and base (3). Retaining device (1) according to any one of claim 1 to 14, characterized in that the coefficient friction between the washer (5) and the base (3) is lower than the coefficient of friction between the base (3) and the platinum (4). Gliding board (2), characterized in that it comprises a device for retaining (1) a shoe on the board (2) according to any one of claims 1 to 15.

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