JP7029352B2 - Snowboard bindings - Google Patents

Description

The present invention relates to a snowboard binding, and more particularly to a snowboard binding suitable for improving posture control of a snowboarder.

By holding the snowboard boots on the board via bindings, the board and the feet (boots) do not separate from each other, and various operations during gliding are possible. On the other hand, in other board sports such as surfing and skateboarding, it is common that the board and the foot are not fixed, and when migrating from other board sports to snowboarding, it becomes completely fixed. Sometimes I feel uncomfortable with the placement of my feet.

For this reason, in recent years, it has been desired to give a degree of freedom to the position of the foot even in snowboarding. Generally, a snowboard binding is positioned and fixed to the snowboard by a rotary disc directly fixed to the snowboard and a binding base positioned by the rotary disc.

The binding disclosed in Patent Document 1 is based on a rotary disc having an umbrella tooth having a small diameter on the upper surface and a binding base positioned by the rotary disc. The rotary disk disclosed in Patent Document 1 is provided with a positioning screw penetrating the binding base in the center. The binding base is provided with a flat plate having an opening through which the head of the positioning screw can be inserted and an opening through which only the shaft portion can be inserted. Then, by moving the flat plate and selecting holes with different diameters, the binding base is slightly lifted from the rotary disc to change the installation orientation, and the binding base is brought into close contact with the rotary disc to regulate its movement. It is said that it is possible to do so.

With such a configuration, the orientation of the binding base can be changed without removing the rotary disk. However, in such a configuration, there is a problem that it is not possible to give a degree of freedom to the position of the foot during sliding.

On the other hand, in the binding disclosed in Patent Document 2, the components corresponding to the rotary disc have a laminated structure, and the rotary disc has a function as a thrust bearing. Therefore, by fixing the binding base to this rotary disk, the binding base has a degree of freedom in the rotation direction. It is also disclosed that the rotary disk in Patent Document 2 is provided with a stopper for limiting the rotation angle and a return means (spring) for returning to the origin after rotation.

Japanese Unexamined Patent Publication No. 2001-187176 Japanese Unexamined Patent Publication No. 2007-215997

It is considered that the binding of the configuration disclosed in Patent Document 2 can improve the degree of freedom in the direction of rotating the ankle. However, the rotary disc of the binding disclosed in Patent Document 2 is composed of at least five laminated members and a plurality of rotation control members. For this reason, it is necessary to give each element a considerable thickness in order to have a complicated structure with a large number of parts and to have strength that can withstand vibration and impact during sliding and stress during operation. It is expected that it will be expensive and thick, and there is a problem that it is not feasible.

Therefore, an object of the present invention is to provide a binding for a snowboard that can easily and effectively give a degree of freedom to the position of the foot based on the conventional structure.

The snowboard binding according to the present invention for achieving the above object is a snowboard binding using a rotary disc for attaching the binding base to the snowboard, and the shaft portion of the mounting screw is slidable on the rotary disc. A plurality of mounting holes composed of elongated holes are provided, and the rotary disk has a collar longer than the thickness of the tightening portion in the mounting holes, and the rotary disk is screwed to the mounting holes via the collar. It is characterized by having a structure.

Further, in the snowboard binding having the above-mentioned characteristics, the mounting hole may be provided with a bush made of an elastic material and having a through hole or a gap corresponding to the diameter of the shaft portion of the mounting screw. With such a feature, it is possible to return the rotary disc slid along the elongated hole to the origin position using the mounting screw as a guide.

Further, in the snowboard binding having the above-mentioned characteristics, the bush can be replaced with one having a different hardness. Having such a feature makes it possible to change the degree of deformation according to the physique, weight, muscle strength, etc. of the snowboarder.

Further, the plurality of mounting holes in the snowboard binding having the above-mentioned characteristics may be formed so as to be arcs located on concentric circles. With such a feature, the binding fixed by the rotary disk can slide in the rotation direction with the rotation center as the base point.

Further, the plurality of mounting holes in the snowboard binding having the above-mentioned characteristics are formed so that one is a round hole and the other mounting holes are arcs located on concentric circles centered on the round holes. You may. With such a feature, the binding fixed by the rotary disk can slide in the rotation direction with the round hole as the center of rotation as the base point.

Further, in the snowboard binding having the above-mentioned characteristics, the mounting holes formed so as to form an arc may be formed equidistant from the center of the concentric circles. Having such a feature makes it possible to accommodate existing mounting holes in snowboards.

According to the snowboard binding having the above-mentioned characteristics, it is possible to easily and effectively give a degree of freedom to the position of the foot based on the conventional structure.

It is a perspective view which shows the structure of the binding which concerns on 1st Embodiment. It is a top view which shows the structure of a rotary disk. It is a bottom view which shows the structure of a rotary disk. It is a figure which shows the cross section AA in FIG. It is a top view which shows the form of the color used in embodiment. It is a figure which shows the BB cross section in FIG. It is a top view which shows the state which attached the binding which concerns on 1st Embodiment to a snowboard. It is a figure which shows the CC cross section in FIG. 7. It is a top view for demonstrating the movable state of the binding attached to a snowboard. It is a top view which shows the structure of the binding which concerns on 2nd Embodiment. It is a top view which shows the modification of the rotary disk which made the arrangement form of a mounting hole different. It is a top view of the rotary disk which shows the example of the arrangement form of the mounting hole when the center of rotation is shifted from the center of a rotary disk.

Hereinafter, embodiments of the binding for snowboarding of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments shown below are a part of a suitable form for the snowboard binding according to the present invention, and the present invention may be changed even if the form of the component is changed as long as it has the technical features thereof. Can be considered part of.

[First Embodiment]
First, the snowboard binding (hereinafter, simply referred to as binding 10) according to the first embodiment will be described with reference to FIGS. 1 to 9. In the drawings, FIG. 1 is a perspective view showing the configuration of the binding according to the first embodiment, and FIG. 2 is a plan view showing the configuration of the rotary disk. Further, FIG. 3 is a bottom view of the rotary disk, and FIG. 4 is a view showing a cross section taken along the line AA in FIG. FIG. 5 is a plan view showing the form of the color used in the embodiment, and FIG. 6 is a view showing a BB cross section in FIG. FIG. 7 is a plan view showing a state in which the binding according to the first embodiment is attached to the snowboard, and FIG. 8 is a view showing a cross section taken along the line CC in FIG. 7. Further, FIG. 9 is a plan view for explaining the movable state of the binding attached to the snowboard.

The binding 10 of the present embodiment is basically composed of the rotary disk 12 and the binding base 22.
[Rotary disc]
The rotary disk 12 is a disk fixed to the snowboard 30 (see, for example, FIG. 7) and responsible for positioning the binding base 22, which will be described in detail later. The rotary disc 12 according to the present embodiment is provided with a plurality of mounting holes 14 (four in the example shown in FIG. 2) and an engaging portion 16. The mounting hole 14 is a long hole. When the degree of freedom to act on the binding 10 is provided in the rotation direction of the rotary disk 12, the elongated hole as the mounting hole 14 is formed along an arc with the rotation center O as a base point. The mounting hole 14 is provided with a counterbore 14a over the entire area thereof, and is configured to accommodate the screw head of the mounting screw 18, which will be described in detail later.

The engaging portion 16 is an element that plays a role of positioning the binding base 22 as the rotary disc 12 is fixed to the snowboard 30. Therefore, as long as the configuration allows stepwise positioning engagement with the binding base 22, the specific form thereof does not matter. In the present embodiment, the engaging portion 16 has the following form. That is, the concavo-convex teeth are formed along the outer edge of the rotary disk 12 on the back surface side. This is because the engaging portion 16 of the binding base 22 is provided with the uneven teeth that mesh with the uneven teeth, so that the positioning can be stepwise according to the number of the uneven teeth. The rotary disc 12 according to the present embodiment is also provided with a counterbore 14b around the opening on the back surface side.

In the present embodiment, as the mounting screw 18, a so-called low head screw having a flat head is adopted. By adopting the mounting screw 18 having such a configuration, most of the head of the mounting screw 18 can be accommodated in the counterbore 14a provided in the mounting hole 14.

Further, in the binding 10 of the present embodiment, the mounting screw 18 arranged in the mounting hole 14 is provided with the collar 20. The collar 20 according to the present embodiment includes a boss portion 20a and a flange portion 20b. The collar 20 is provided in the mounting hole 14, and its length l is configured to be at least longer than the thickness d from the back surface side opening in the mounting hole 14 to the bottom surface of the counterbore 14a. This is because the mounting hole 14 can be slid along the mounting screw 18 while being tightened by the mounting screw 18.

The boss portion in the collar 20 has a diameter that has a negative tolerance with respect to the mounting hole 14, and the flange portion 20b has a diameter that fits in the counterbore 14b on the back surface. Further, the flange portion 20b is configured so that the value of the flange portion 20b is larger when the thickness thereof is compared with the depth of the counterbore 14b. With such a configuration, the rotary disc 12 tightened by the mounting screw 18 can be slightly lifted from the snowboard 30, and the slidability of the rotary disc 12 can be improved.

[Binding base]
The binding base 22 is an element for positioning and fixing to the snowboard 30 via the rotary disc 12, and is the basis of the binding 10 which plays a role of holding boots (not shown) worn by the snowboarder. The binding base 22 has various forms, and the binding base 22 having the form shown in FIG. 1 can be fixed to boots by attaching accessories such as a high back 24 and a buckle (not shown).

A rotary disc engaging portion 26 (see FIG. 8) is formed on the boot contact surface of the binding base 22. The rotary disc engaging portion 26 is a through hole having a diameter slightly smaller than the outer diameter of the rotary disc 12. Concavo-convex teeth (not shown) corresponding to the engaging portion 16 of the rotary disc 12 are formed on the outer peripheral portion of the rotary disc engaging portion 26 on the surface facing the rotary disc 12. When the binding base 22 has such a configuration, the rotary disc 12 is engaged with the rotary disc engaging portion 26, and the rotary disc 12 is fixed to the snowboard 30 to fix the positioning of the binding base 22.

[Overall composition and effects]
The binding 10 according to the present embodiment is configured by positioning and fixing the binding base 22 arranged on the snowboard 30 by the rotary disk 12. As shown in FIG. 8, an insert nut 32 for fastening the mounting screw 18 is embedded in the snowboard 30.

The binding 10 configured in this way can rotate the binding 10 itself as the rotary disk 12 rotates. Specifically, as shown in FIG. 9 (A), from the state where the mounting screw 18 (collar 20) is in contact with the left end portion of the mounting hole 14 formed as a long hole, it is shown in FIG. 9 (B). As shown, the binding 10 can be rotated about the rotation center O of the rotary disk 12 until the mounting screw 18 (collar 20) comes into contact with the right end portion of the mounting hole 14. Therefore, it is possible to give a degree of freedom to the position of the foot.

As described above, the binding 10 according to the present embodiment is based on the conventional basic structure such as the rotary disk 12 and the binding base 22, and it is possible to easily and effectively give a degree of freedom to the position of the foot. ..

[Second Embodiment]
Next, the binding 10A according to the second embodiment will be described with reference to FIG. Most of the binding 10A according to the present embodiment has the same configuration as the binding 10 according to the first embodiment. Therefore, the parts having the same configuration are designated by the same reference numerals to the drawings, and detailed description thereof will be omitted.

The binding 10A according to the present embodiment is characterized in that the bush 28 is provided in the mounting hole 14 of the rotary disk 12. The bush 28 is an element that plays a role of exerting a force for returning to the origin on the rotary disc 12 rotated by using the mounting screw 18 as a guide. The bush 28 according to this embodiment is made of an elastic material. The specific form of the bush 28 does not matter, but the part that functions there has a volume that fits in the mounting hole 14, and the diameter of the shaft portion of the mounting screw 18 is located at the position that is the origin position of the mounting screw 18. It is preferable to have a through hole or a gap corresponding to the above.

With such a configuration, the bush 28 made of an elastic material is compressed and deformed with the rotation of the rotary disc 12 by applying a load in the rotational direction to the rotary disc 12. Then, when the load in the rotational direction is released, the bush 28 that has been compressed and deformed returns to the steady state. As a result, the positional relationship between the rotary disc 12 and the mounting screw 18 returns to the origin position.

In the binding 10A having such characteristics, the bush 28 may be capable of selecting and exchanging materials having different materials and hardness according to the force (load) required for deformation. With such a configuration, it is possible to change the degree of deformation according to the physique, weight, muscle strength, etc. of the snowboarder.

[Application form]
In the above embodiment, the mounting holes 14 formed in the rotary disc 12 are described so as to be arranged equidistant from the center (rotation center) of the rotary disc 12. This is because it is premised that the arrangement form of the insert nut 32 in the existing snowboard 30 is used as it is. However, as shown in FIG. 11, if the mounting holes 14 formed in the rotary disk 12 are arranged on concentric circumferences with the rotation center O as the base point, the distances from the rotation center O are different. Even in some cases, the same effect can be achieved.

Further, in the above embodiment, the mounting holes 14 formed in the rotary disk 12 are described so as to be elongated holes. However, as shown in FIG. 12, the mounting hole 14 provided in the rotary disk 12 is formed by a round hole-shaped mounting hole 14A that serves as a center of rotation and a plurality of elongated mounting holes 14B that slide with the mounting screw 18 as a guide. It may be configured. In such a configuration, the mounting hole 14B formed in the shape of an elongated hole forms an arc so as to be located on a concentric circle centered on the mounting hole 14A formed in the shape of a round hole.

By having the rotation center O at a position deviated from the center of the rotary disc 12 in this way, when the binding base 22 is positioned, the foot so as to slide the heel side or the toe side of the binding 10 (10A). It is possible to change the arrangement position of. Therefore, it is possible to adjust the rotation base point according to the size of the foot.

In the examples shown in FIGS. 11 and 12, for explanation, a part of the mounting hole 14 (14B) is shown to be arranged on the outer edge side of the rotary disk 12, but this is a radius from the rotation center O. It is determined by. Therefore, when the mounting hole 14 (14B) is located on the center side of the rotary disk 12, the distance from the rotation center O may be shortened. Further, in all of the above embodiments, it is premised that the degree of freedom is given to the position of the foot in the direction in which the ankle is rotated. Therefore, it is described that all the mounting holes 14 formed in the shape of elongated holes are formed in the shape of an arc. However, when the stance is changed in the width direction or the front-back direction with respect to the degree of freedom in the arrangement of the legs, the elongated mounting holes 14 are formed in a straight line.

10, 10A ……… Binding, 12 ……… Rotary disc, 14, 14A, 14B ……… Mounting holes, 14a ……… Counterbore, 14b ……… Counterbore, 16 ……… Engagement part, 18 ……… Mounting screw, 20 ………… Collar, 20a ………… Boss part, 20b ………… Flange part, 22 ………… Binding base, 24 ………… Highback, 26 ………… Rotary disc engaging part, 28 ………… Bush, 30 ……… Snowboard, 32 ……… Insert nut.

Claims (6)

A snowboard binding that uses a rotary disc to attach the binding base to the snowboard.
The rotary disk is provided with a plurality of mounting holes formed by elongated holes on which the shaft portion of the mounting screw can slide.
It has a collar that is longer than the thickness of the tightening portion in the mounting hole and has a collar.
The rotary disc is a binding for a snowboard, characterized in that the mounting hole is screwed via the collar. The snowboard binding according to claim 1, wherein the mounting hole is provided with a bush made of an elastic material and having a through hole or a gap corresponding to the diameter of the shaft portion of the mounting screw. The snowboard binding according to claim 2, wherein the bush is replaceable with one having a different hardness. The snowboard binding according to any one of claims 1 to 3, wherein the plurality of mounting holes are formed so as to form arcs located on concentric circles. Any of claims 1 to 3, wherein the plurality of mounting holes are formed so that one is a round hole and the other mounting holes are arcs located on concentric circles centered on the round holes. The snowboard binding described in item 1. The snowboard binding according to claim 4, wherein the mounting holes formed so as to form an arc are formed equidistantly from the center of the concentric circles.

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