JP2019205787A - Binding for snowboard - Google Patents

Abstract

To provide a binding for a snowboard, which is based on a conventional structure and which enables a degree of freedom to be simply and effectively secured in a foot arrangement position.SOLUTION: A binding 10 has a binding base 22 attached to a snowboard 30 by using a rotary disc 12. The rotary disc 12 is provided with a plurality of fitting holes 14 comprising a slot through which a shank of a fitting screw 18 can slide, and has a collar 20 with a length greater in dimension than the thickness of a fastening part of the fitting hole 14. The rotary disc 12 has the fitting hole 14 screwed via the collar 20.SELECTED DRAWING: Figure 1

Description

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

  The snowboard boot is held on the board via the binding, so that the board and the foot (boot) are not separated from each other, and various operations can be performed during the sliding. 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 moving from other board sports to snowboarding, it is completely fixed Sometimes I feel uncomfortable with the placement of my feet.

  For this reason, in recent years, it has been desired to provide flexibility in the position of feet even in snowboarding. In general, the binding of the snowboard is fixed to the snowboard by a rotary disk that is directly fixed to the snowboard and a binding base that is positioned by the rotary disk.

  The binding disclosed in Patent Document 1 is based on a rotary disk having a bevel tooth having a small diameter on the upper surface and a binding base positioned by the rotary disk. The rotary disk disclosed in Patent Document 1 includes a positioning screw that penetrates the binding base at the center. The binding base is provided with a flat plate having a deformed opening in which an opening through which the head of the positioning screw can be inserted and an opening through which only the shaft can be inserted are communicated. Then, by moving the flat plate and selecting holes with different diameters, the binding base is slightly lifted from the rotary disk, the installation direction is changed, and the binding base is brought into close contact with the rotary disk to regulate its movement. It is configured to be able to.

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

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

JP 2001-187176 A JP 2007-215997 A

  With the binding having the configuration disclosed in Patent Document 2, it is considered that the degree of freedom in the direction of rotating the ankle can be improved. However, the binding rotary disk disclosed in Patent Document 2 is composed of at least five laminated members and a plurality of rotation control members. For this reason, the number of parts is large and the structure is complicated, and in order to have strength to withstand vibration and impact during sliding, and stress during operation, each element must have a considerable thickness. It is expected to be expensive and thick, and there is a problem that the feasibility is low.

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

  In order to achieve the above object, a snowboard binding according to the present invention is a snowboard binding that uses a rotary disk to attach a binding base to a snowboard, and a shaft portion of a mounting screw is slidable on the rotary disk. A plurality of mounting holes constituted by long holes are provided, the collar has a collar longer than the thickness of the tightening portion in the mounting hole, and the rotary disk is screwed to the mounting holes through the collar. It is characterized by having a configuration.

  Further, in the snowboard binding having the above-described features, 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 this feature, it is possible to return the rotary disk that has been slid along the long hole using the mounting screw as a guide to the original position.

  Further, in the snowboard binding having the above-described characteristics, the bush can be replaced with one having a different hardness. With such a feature, the degree of deformation can be changed according to the physique, weight, muscle strength, etc. of the snowboarder.

  The plurality of mounting holes in the snowboard binding having the above-described characteristics may be formed so as to form an arc located on a concentric circle. According to such a feature, the binding fixed by the rotary disk can slide in the rotation direction with the rotation center as a base point.

  Further, the plurality of mounting holes in the snowboard binding having the above-described features are formed so that one is a round hole and the other mounting holes are arcs located on concentric circles centering on the round hole. You may do it. According to such a feature, the binding fixed by the rotary disk can be slid in the rotation direction with the round hole as the rotation center as a base point.

  Further, in the snowboard binding having the above-described features, the arcuate mounting holes may be formed at an equal distance from the center of the concentric circles. By having such a feature, it is possible to correspond to an existing mounting hole in the snowboard.

  According to the snowboard binding having the above-described characteristics, it is possible to give a freedom to the foot placement position simply and effectively 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 AA cross section in FIG. It is a top view which shows the form of the color used for 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 the snowboard. It is a figure which shows CC cross section in FIG. It is a top view for demonstrating the movable state of the binding attached to the 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 disc which varied the arrangement | positioning form of the attachment hole. It is a top view of the rotary disc which shows the example of arrangement | positioning form of the attachment hole in the case of shifting a rotation center from the center of a rotary disc.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the snowboard binding of the present invention will be described in detail with reference to the drawings. The following embodiment is a part of a preferred form of the snowboard binding according to the present invention, and the present invention can be applied even if the form of the constituent elements is changed within the limits of the technical features. Can be considered part of

[First Embodiment]
First, a snowboard binding (hereinafter simply referred to as a binding 10) according to a first embodiment will be described with reference to FIGS. 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. FIG. 3 is a bottom view of the rotary disk, and FIG. 4 is a view showing a cross section AA in FIG. FIG. 5 is a plan view showing the form of a collar used in the embodiment, and 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 CC cross section in FIG. 7. FIG. 9 is a plan view for explaining the movable state of the binding attached to the snowboard.

The binding 10 of this embodiment is configured based on a rotary disk 12 and a binding base 22.
[Rotary disc]
The rotary disk 12 is a disk that is fixed to a snowboard 30 (see, for example, FIG. 7) and is responsible for positioning a binding base 22 that will be described in detail later. The rotary disk 12 according to the present embodiment is provided with a plurality (four in the example shown in FIG. 2) of mounting holes 14 and engaging portions 16. The attachment hole 14 is a long hole. When the degree of freedom of acting on the binding 10 is given in the rotational direction of the rotary disk 12, the long hole as the attachment 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 can be configured to accommodate a screw head of a mounting screw 18 to be described in detail later.

  The engaging portion 16 is an element that plays a role of positioning the binding base 22 when the rotary disk 12 is fixed to the snowboard 30. For this reason, the specific form will not be ask | required if it is the structure which can perform the positioning engagement with the binding base 22 in steps. In the present embodiment, the engaging portion 16 has the following form. That is, the concave and convex teeth are formed along the outer edge on the back surface side of the rotary disk 12. This is because by providing the engaging portion 16 of the binding base 22 with the concave and convex teeth that mesh with the concave and convex teeth, stepwise positioning according to the number of the concave and convex teeth is possible. The rotary disk 12 according to the present embodiment is provided with counterbore 14b also around the opening on the back side.

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

  Further, in the binding 10 of the present embodiment, the collar 20 is provided on the mounting screw 18 disposed in the mounting hole 14. 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 the length 1 is configured to be longer than at least the thickness d from the back surface side opening of the mounting hole 14 to the bottom surface of the counterbore 14 a. This is because the mounting hole 14 can be slid along the mounting screw 18 in a state where the mounting screw 18 is tightened.

  The boss portion in the collar 20 has a diameter that is a negative tolerance with respect to the mounting hole 14, and the flange portion 20 b has a diameter that fits in the counterbore 14 b on the back surface. Moreover, the flange part 20b is comprised so that the value of the flange part 20b may become large when the thickness and the depth of the counterbore 14b are compared. This is because the rotary disk 12 tightened by the mounting screw 18 is slightly lifted from the snowboard 30 and the slidability of the rotary disk 12 can be improved.

[Binding Base]
The binding base 22 is an element that is positioned and fixed to the snowboard 30 via the rotary disk 12 and is the basis of the binding 10 that plays a role of holding a boot (not shown) worn by the snowboarder. There are various forms of the binding base 22, but the boot can be fixed by attaching accessories such as a high back 24 and a buckle (not shown) to the binding base 22 in the form shown in FIG. 1.

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

[Overall structure and effect]
The binding 10 according to the present embodiment is configured by positioning and fixing a binding base 22 disposed on a snowboard 30 with a 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 as described above can rotate the binding 10 itself as the rotary disk 12 rotates. Specifically, as shown in FIG. 9A, from the state in which the mounting screw 18 (collar 20) is in contact with the left end of the mounting hole 14 formed as a long hole, FIG. As shown, the binding 10 can be rotated with the rotation center O of the rotary disk 12 as a base point until the mounting screw 18 (collar 20) comes into contact with the right end of the mounting hole 14. Therefore, it becomes possible to give a freedom degree to the arrangement 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 can easily and effectively give freedom to the position of the foot. .

[Second Embodiment]
Next, a binding 10A according to the second embodiment will be described with reference to FIG. The binding 10A according to the present embodiment has almost the same configuration as the binding 10 according to the first embodiment. For this reason, portions having the same configuration are denoted by the same reference numerals in the drawings, and detailed description thereof is omitted.

  The binding 10 </ b> A according to this embodiment is characterized in that a 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 applying a force for returning the origin to the rotary disk 12 rotated with the mounting screw 18 as a guide. The bush 28 according to the present embodiment is made of an elastic material. Although the specific form of the bush 28 is not questioned, the diameter of the shaft portion of the mounting screw 18 is located at a position where the functioning portion has a volume that fits in the mounting hole 14 and is the origin position of the mounting screw 18. It is preferable to have a through hole or a gap corresponding to.

  By adopting such a configuration, the bush 28 made of an elastic material is compressed and deformed with the rotation of the rotary disk 12 when a load in the rotation direction is applied to the rotary disk 12. Then, by releasing the load in the rotational direction, the bush 28 that has been compressively deformed returns to the normal state. Thereby, the positional relationship between the rotary disk 12 and the mounting screw 18 returns to the origin position.

  In the binding 10 </ b> A having such a feature, the bush 28 may be selected and replaced with one having a different material or hardness depending on the force (load) required for deformation. With such a configuration, the degree of deformation can be changed according to the physique, weight, muscle strength, etc. of the snowboarder.

[Application form]
In the above embodiment, the attachment holes 14 formed in the rotary disk 12 are described as being arranged at an equal distance from the center (rotation center) of the rotary disk 12. This is because the arrangement form of the insert nuts 32 in the existing snowboard 30 is assumed to be used as it is. However, if the mounting hole 14 formed in the rotary disk 12 is arranged on a concentric circumference with the rotation center O as a base point, as shown in FIG. 11, the distance from the rotation center O is varied. Even if it is a case, the same effect can be produced.

  Moreover, in the said embodiment, all described the attachment hole 14 formed in the rotary disk 12 as a long hole. However, as shown in FIG. 12, the mounting hole 14 provided in the rotary disk 12 includes a round hole-shaped mounting hole 14A serving as a rotation center and a plurality of long-hole-shaped mounting holes 14B that slide using mounting screws 18 as guides. It may be configured. In the case of such a configuration, the attachment hole 14B formed in the shape of a long hole forms an arc so as to be positioned on a concentric circle with the attachment hole 14A formed in a round hole shape as a center.

  As described above, by providing the rotation center O at a position deviated from the center of the rotary disk 12, when the binding base 22 is positioned, the heel side or the toe side of the binding 10 (10A) is slid. 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 example shown in FIGS. 11 and 12, for the sake of explanation, a part of the mounting hole 14 (14 </ b> B) is 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 positioned on the center side of the rotary disk 12, the distance from the rotation center O may be shortened. In any of the above-described embodiments, it is premised that a degree of freedom in the direction in which the ankle is rotated is given to the degree of freedom in the foot placement position. For this reason, the attachment hole 14 formed in the shape of a long hole is described as being formed in an arc shape. However, when the stance is changed in the width direction or the front-rear direction with respect to the degree of freedom of the arrangement of the legs, the long hole-shaped attachment holes 14 are formed in a straight line shape.

10, 10A ......... Binding, 12 ......... Rotary disc, 14, 14A, 14B ......... Mounting hole, 14a ......... Counterbore, 14b ......... Counterbore, 16 ......... engagement part, 18 ......... Mounting screw, 20 ......... Collar, 20a ......... Boss portion, 20b ......... Flange portion, 22 ......... Binding base, 24 ......... High back, 26 ......... Rotary disc engaging portion, 28 ......... Bush, 30 ... Snowboard, 32 ... Insert nut.

Claims (6)

A binding for a snowboard that uses a rotary disk to attach the binding base to the snowboard,
The rotary disk is provided with a plurality of mounting holes constituted by long holes through which the shaft portion of the mounting screw can slide.
Having a collar longer than the thickness of the tightening portion in the mounting hole;
The binding for a snowboard, wherein the rotary disk is configured such that the mounting hole is screwed through 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 a diameter of a shaft portion of the mounting screw.   3. The snowboard binding according to claim 2, wherein the bush is replaceable with one having different hardness.   4. The snowboard binding according to claim 1, wherein the plurality of mounting holes are formed so as to form arcs located on concentric circles. 5.   4. The plurality of mounting holes, wherein one of the mounting holes is a round hole, and the other mounting hole is formed to be an arc located on a concentric circle with the round hole as a center. Or a snowboard binding according to claim 1.   The snowboard binding according to claim 4 or 5, wherein the arcuate mounting holes are formed at an equal distance from the center of the concentric circles.

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