JP2780086B2 - Snowboard bindings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding for a snowboard, and more particularly to a binding for attaching to a snowboard and fixing a foot of a player wearing a snowboard boot on the snowboard.

[0002]

2. Description of the Related Art A snowboarding competition is a competition in which a competitor rides on a single-plate snowboard like a surfboard, turns left and right or jumps up and down like a skiing competition, and slides on snow. A snowboard used for such a snowboard competition is provided with a snowboard binding (hereinafter, referred to as a binding) on which a competitor puts his / her foot. When a competitor operates a snowboard, a large load is applied to the binding fixing the foot. Generally, a nut is embedded and fixed in advance at a position where the binding of the snowboard is mounted, and the binding is fixed to the nut with a bolt. The binding is fixed to the snowboard so that the competitor's left and right feet can be put forward and backward from the center of the snowboard. As shown in FIG. 1, the binding is attached to the left and right at an angle α with respect to the center of the snowboard. Since the angle at which the binding is fixed differs for each competitor depending on the competitor's physique or individual personality, it is necessary to be able to finely adjust the angle.
Therefore, it is necessary for the binding to have rigidity to withstand a large load and to be able to adjust the angle α attached to the snowboard. Also, the weight of the binding is desirably as light as possible from the viewpoint of operability and the like.
Since it is used on snow, one having good corrosion resistance is desirable.

A conventional example will be described below with reference to FIGS. 7 and 8, which are explanatory views showing the conventional example, and FIG. 9, which is an explanatory view showing the mounting of the conventional example shown in FIG. That is, the conventional binding uses duralumin to increase rigidity. However, duralumin is relatively difficult to cut at room temperature with a drilling machine or a milling machine due to its high hardness but brittleness. Therefore, as shown in FIG. I was A conventional example will be described below with reference to FIG. 100 is a snowboard,
The snowboard 100 has a nut 1 near the competitor's foot.
01 are embedded and fixed in two rows at equal intervals. 102
Is a binding. The binding 102 is made of duralumin so as to have sufficient rigidity, and as shown in FIG. 7, a bottom plate portion 103 on which a foot can be inserted, and a side wall 104 erected from the bottom plate portion 103 along the foot side portion. And a belt portion 105 for fixing the inserted foot, and a heel stopper 106 for preventing the heel of the inserted foot from coming off. The belt portion 105 is positioned so as to hang over the front and rear portions of the foot. The heel stopper 106 is attached to the side wall 104 from the rear of the side wall 104 via the rear of the foot so that the heel stopper 106 is located at the heel portion of the inserted foot. Bottom plate part 1
Almost in the center of 03, binding 1 to snowboard 100
02, four long holes 107 are provided.
The two long holes 107 are formed at positions corresponding to the nuts 101 of the snowboard 100. The binding 102 configured in this manner is attached to the snowboard 10 by bolts 108.
Fixed to 0.

In another conventional example, the binding 112 is made of a synthetic resin such as an ABS resin which is more workable than the above-described conventional example, and includes a binding body 112a and a mounting plate 115. As shown in FIG. 8, the binding body 112a is provided with a concave portion 110 which is formed in a concave shape so as to have a circular step at substantially the center of the bottom plate portion 113 (at the position of the long hole 107 in the conventional example described above). A rack 111 is provided on the portion in a circumferential shape and an uneven shape facing upward. Then, separately from the binding 112, the concave portion 110
A thin disk-shaped mounting plate 115 that can be mounted in a loose fit state is provided therein. On the circumference of the plate 115, the rack 1
The rack 114 is provided so as to mesh with the nut 11, and the hole 117 is provided so as to correspond to the nut 101 so that the center of the disk shape becomes the center. The plate 115 is fitted into the concave portion 110 of the binding body 112a configured as described above, and a bolt 108 is inserted into a hole of the plate 115 and screwed to the nut 101 to be attached to the snowboard 100. Then, the racks 111 and 114 mesh with each other, and the snowboard 100 and the binding 112 are fixed.

[0005]

However, in the above-mentioned conventional example, the rigidity of the binding 102 is ensured, but the snowboard 100 and the binding 102 are only connected by the screwing force of the bolt 108 and the nut 101 through the elongated hole 107. And because it is fixed, the binding 10
When an excessive load is applied to the snowboard 2 and the snowboard 101, there is a problem that the binding 102 is displaced from the position where it is attached to the snowboard 100.

When the binding 112 is made of a synthetic resin such as an ABS resin as shown in a conventional example described later, the mounting angle to the snowboard 100 is ensured by the engagement of the racks 111 and 114. for,
When an excessive load is applied to the racks 111 and 114, the uneven shape may be broken, and the angle between the snowboard 100 and the binding 112 may not be maintained. Therefore, to form a binding with a light alloy such as duralumin used in the prior art, particularly a corrosion-resistant aluminum alloy, a high-strength aluminum alloy, etc., and to fix the mounting angle to the snowboard as in the later conventional example, There is a problem that the duralumin material must have a rigidity, which is a property of the duralumin material, not to be easily deformed, and to be capable of providing rack-shaped fine irregularities.

[0007] The present invention solves the above-mentioned problems, so that even if an excessive load is applied to the binding fixed to the snowboard, the binding 102 is not easily shifted from the position where it is attached to the snowboard 100, and has sufficient rigidity. An object of the present invention is to provide a binding having the same.

[0008]

Means for Solving the Problems Therefore, the present invention provides

In a structure of a fixing portion in a snowboard binding, a binding body mounted on a snowboard is sandwiched between fixing plates, and the fixing plate is fixed to fixing means provided in advance on the snowboard to attach the binding body to the snowboard. A plurality of fixing holes are formed in the snowboard at positions corresponding to fixing means provided on the snowboard, and a sphere is formed on one surface of the plate along a predetermined circumference on the plate. A fixed plate provided with a plurality of engaging projections formed by being embedded, and a bottom portion formed of a plate-like body and side walls provided on both sides of the bottom portion, and are the same as a predetermined circumference of the fixed plate. A plurality of engaging concave portions provided in a concave shape at regular intervals along the circumference of the shape are provided, and the engaging concave portion and the engaging convex portion of the fixed plate are at least in a fitted state. A structure of a fixing portion in a snowboard binding, comprising: a fixing body having a fixing hole formed at a position corresponding to the fixing hole of the fixing plate; and a fixing plate for fixing the binding body placed on the snowboard. In the structure of the fixing part in the snowboard binding that attaches the binding body to the snowboard by fixing the fixing plate to the fixing means provided in advance on the snowboard, it is composed of a disk-shaped plate-shaped body, Is provided with a fitting recess having a concave shape, and an engaging projection formed by embedding a sphere along a predetermined circumference centered on the fitting recess around the end of the disc on the surface on which the fitting recess is provided. A plurality of parts are provided, and the plate-shaped body is provided at a position corresponding to the fixing means provided on the snowboard inside the engagement convex part on the surface of the plate-shaped body. A fixing plate provided with a plurality of fixing holes through which the fixing plate passes, and a bottom portion formed of a plate-like body and a side wall provided on both sides of the bottom portion. A fitting convex portion that can be freely fitted is provided, and a plurality of concave engaging concave portions are provided at regular intervals along a circumference of the same shape as a predetermined circumference of the fixed plate around the fitting convex portion, At least one long hole larger than the diameter of the fixing hole is formed in the circumferential direction centering on the fitting convex portion at the position corresponding to the fixing hole of the fixing plate with the fitting concave portion and the fitting convex portion fitted. The structure of the fixing portion in the snowboard binding, which comprises a binding body, and the binding body placed on the snowboard sandwiched by the fixing plate, and the fixing plate is fixed to fixing means provided in advance on the snowboard. In the structure of the fixing portion in the snowboard binding for attaching the binding body to the snowboard by doing, a plurality of fixing holes made of a plate-like body and penetrating the plate-like body are formed at positions corresponding to fixing means provided on the snowboard, On one surface of the plate-like body, a fixed plate having engagement recesses provided in a concave shape at regular intervals along a predetermined circumference on the plate, a bottom made of the plate-like body and both sides of the bottom are erected. An engaging projection formed by embedding a sphere along a circumference having the same shape as a predetermined circumference of the fixing plate, the engaging projection and the engaging recess of the fixing plate. And a binding body in which a fixing hole is drilled at a position corresponding to at least the fixing hole of the fixing plate in a fitted state. In the structure of the fixing portion in the snowboard binding for mounting the binding body to the snowboard by sandwiching the binding body placed on the snowboard with the fixing plate and fixing the fixing plate to fixing means provided in advance on the snowboard, A disc-shaped plate-like body is provided, and a recessed fitting recess is provided at the center of the plate-shaped body, and a predetermined circumference centered on the fitting recess is provided around the end of the disk on which the fitting recess is provided. A plurality of concave engaging recesses are provided at regular intervals along the inside, and a plurality of fixing holes penetrating the plate at a position corresponding to the fixing means provided on the snowboard inside the engaging concave on the surface of the plate. Fixed plate, and a bottom formed of a plate-like body and a side wall provided on both sides of the bottom, and a fitting recess provided on the fixed plate is provided at the bottom. A fitting projection that is rotatably fitted with the fitting plate is provided, and a sphere is embedded around the fitting projection along a circumference having the same shape as a predetermined circumference of the fixed plate. A plurality of mating projections are provided, and at least a fixing hole diameter in the circumferential direction centering on the mating projection at a position corresponding to the fixing hole of the fixing plate in a state where the mating recess and the mating projection are fitted. The structure of the fixing portion in the binding for snowboards, comprising a binding body in which a wider slot is drilled, and the binding body placed on the snowboard is sandwiched by a fixing plate, and the The structure of the fixing portion in the snowboard binding in which the binding body is attached to the snowboard by fixing the fixing plate to the fixing means provided is formed of a disk-shaped plate-like body. In the center of the plate-like body, a convex fitting convex portion is provided so as to protrude, and around a disk end of a surface on which the fitting convex portion is provided, a predetermined constant shape is provided around the fitting convex portion. A fixing plate provided with a plurality of concave engagement recesses at intervals and having a plurality of fixing holes penetrating through the plate at corresponding positions with fixing means provided on the snowboard inside the engagement recess on the surface of the plate. And a bottom formed of a plate-like body and a side wall provided on both sides of the bottom, the bottom having a recessed fitting recess rotatably fitted with a fitting projection provided on the fixed plate. Are provided, and a plurality of engaging projections are provided by embedding spheres along the circumference of the same shape as the predetermined circumference of the fixed plate around the fitting recess, and the fitting recess and the fitting are provided. With the mating protrusions fitted, center on the mating protrusions at positions corresponding to the fixing holes in the fixing plate Structure of the fixing portion of the snowboard binding of circumferentially smaller width size of the long hole of the fixed pore size, characterized by comprising a binding body which is drilled,

The above-mentioned problem is solved by providing the above. In the operation of the present invention, the binding body is placed on the snowboard, and is fixed to fixing means provided in advance on the snowboard so that the binding body is sandwiched by the fixing plate. At this time, the fixing of the fixing plate to the main body is stopped halfway, and the engaging convex portion is positioned so as to be fitted to a desired one of the engaging concave portions, and the binding body is sandwiched by the fixing plate and fixed to the fixing means of the snowboard. Secure the plate. Then, the binding body is fixed to the snowboard. Then, when fixing, the relative angle between the binding body and the snowboard can be determined by which engaging concave portion the engaging convex portion is fitted to. Also, in the case where the fitting convex portion and the fitting concave portion are provided on the binding body and the fixing plate, the fitting concave portion and the fitting convex portion are fitted, and the fixing plate is fixed to the snowboard to some extent. It is possible to keep the plate and the binding body rotatable about the fitting concave portion and the fitting convex portion, and by rotating the binding body with respect to the fixed plate, the engaging convex portion is formed in the desired engaging concave portion. The fixed plate is firmly fixed to the snowboard in the fitted state, and the binding body can be attached to the snowboard at a desired angle.
The same effect can be obtained when the binding body is provided with a fitting concave portion instead of the fitting convex portion, and the fixing plate is provided with a fitting convex portion instead of the fitting concave portion. The same operation can be obtained when an engaging convex portion is provided instead of the engaging concave portion and an engaging concave portion is provided on the fixed plate instead of the engaging convex portion.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory perspective view showing an embodiment of the present invention, FIG. 2 is an explanatory view of a snowboard, and FIG.
FIG. 4 is a partially enlarged view of the embodiment in FIG. 1, FIG. 4 is a central vertical sectional view of the binding shown in FIG.
(A) to FIG. 5 (c) are component diagrams of the embodiment, (a) is a plan view, (b) is a rear view, (c) is a front view, and FIG. 6 is mounting of the embodiment shown in FIG. FIG.

Reference numeral 1 denotes a snowboard, and 2 denotes a binding. As shown in FIG. 1, when an athlete performs a game using the snowboard 1, the game is performed by attaching the binding 2 to the snowboard 1 and placing the foot on the binding 2 to fix it. . As shown in FIG. 2, a plurality of nuts 11 are buried and fixed in two rows at equal intervals before and after the center of the snowboard 1 in the longitudinal direction as shown in FIG. To fix the binding 2. Since the fixing position of the binding 2 differs depending on each player, the nut 11 corresponding to the mounting position of the binding 2 is selected and the binding 2 is mounted. The binding 2 is made of duralumin in this embodiment, and includes a fixed plate 3 and a binding body 4 as shown in FIGS. The fixing plate 3 has a disk shape made of duralumin as shown in FIG.
1 is provided. Hereinafter, the surface of the fixed plate 3 on which the fitting recess 31 is provided is referred to as the back surface of the fixed plate 3, and the opposite surface is referred to as the front surface of the fixed plate 3. The fitting concave portion 31 is provided by embossing the fixing plate 3 made of duralumin from the back surface. However, since the duralumin material is hard and is hardly deformed, the fitting concave portion 3 is formed.
Shape 1 protrudes from the surface as if it were sheared. Numeral 32 denotes an engaging projection which is a sphere.
2 are buried at equal intervals on the circumference of a predetermined radius from the fitting concave portion 31. In this embodiment, the engaging projection 32 is embedded on a circumference having a radius of about 41 mm from the fitting recess 31, and the material is a spherical bearing. The engaging projections 32 are
A sphere is inserted into a hole provided with a slightly larger diameter and approximately half the diameter of the engaging projection 32 in the same manner as the fitting recess 31, and the periphery of the sphere of the fixing plate 3 is crimped to be embedded in the fixing plate 3. Fixed. In this embodiment, since the material of the fixing plate 3 is duralumin, it is not easy to perform cutting to the diameter of the engaging projection 32 and cut out the same. Therefore, the engaging projection 32 is provided by embedding and fixing a spherical bearing. However, the engagement protrusion 32 may be provided by another method. Further, in this embodiment, four engaging projections 32 are provided, but any number of engaging projections such as three may be used as long as the engagement does not disengage during use. Reference numeral 33 denotes a fixing hole, and the fixing hole 33 is symmetrical about the fitting recess 31 and is embedded and fixed in the snowboard 1.
The holes are drilled at the same intervals as each other and with a diameter that allows the bolts 5 screwed to the nuts 11 to be inserted. The fixing hole 33 is
Since the material of the fixing plate 3 is duralumin, it is provided by punching. The binding 2 can be fixed to the snowboard 1 by inserting the bolt 5 into the fixing hole 33 and screwing the bolt 5 with the nut 11 embedded and fixed in the snowboard 1. The binding body 4 is provided with a plate-shaped bottom portion 41 and stands upright from both sides of the bottom portion 41 to form side walls 42a and 42b. A heel cup 43 is provided to connect one end of each of the side walls 42a and 42b to each other in an arch shape. When a competitor places his / her feet on the binding 2, the heel side is placed so that the heel side is located on the heel cup 43 side. Since the cup 43 fixes the heel, the foot does not separate to the heel side. In this embodiment, the heel cup 4
Although 3 is formed integrally with the side walls 42a and 42b, a separate body may be fixed to the side walls 42a and 42b by rivets or the like. At the approximate center of the bottom part 41, a convex fitting convex part 44 is provided.
Is protruded toward the side wall 42. Hereinafter, the side wall 42 of the bottom 41
The surface on the side is called the bottom 41 front surface, and the opposite surface is called the bottom 41 back surface. The fitting convex portion 44 is provided by being pressed from the back surface of the binding body 4 similarly to the fitting concave portion 31, and is also projected like a convex shape like the fitting concave portion 31.
Further, on the surface of the bottom portion 41, a plurality of engaging concave portions 45 are provided at equal intervals on a circumference around the fitting convex portion 44. In this case, the interval between the engaging concave portions 45 is set to be an integral fraction of the interval between the adjacent engaging convex portions 32, and each engaging convex portion 32 is provided so as to be able to engage with the engaging concave portion 45. The minimum angle that can be adjusted when fixing the binding 2 on the snowboard 1 is determined by the distance between the engaging recesses 45 and the radius of the provided circumference. That is, the angle between the lines connecting the centers of the adjacent engaging concave portions 45 and the center of the fitting convex portion is the minimum adjustable angle. In this embodiment, the radius of the circumference where the engagement recess 45 is provided is about 41 mm,
Since the distance between the adjacent engaging recesses 45 is about 3.5 mm, the minimum adjustable angle is about 5 °. In this embodiment, as described above,
Adjustment is possible every 5 °, but the engagement convex portion 32 and the engagement concave portion 45 can be adjusted.
Can be adjusted at a smaller angle by increasing the radius of the circle provided with and reducing the distance between the engaging recesses 45.
Reference numeral 46 denotes a long hole, and the long hole 46 is symmetrical about the fitting projection 44 and the radius from the fitting projection 44 is fixed plate 3.
The hole having the same diameter as the fixing hole 33 or a slightly larger width is formed on the circumference having the same radius as the fixing hole 33 and the fitting concave portion 31 to be formed. Therefore, in a state where the fitting projections 44 are fitted into the fitting recesses 31 of the fixing plate 3, the fixing holes 33 of the fixing plate 3 correspond to the elongated holes 46, and the bolts 5 correspond to the fixing holes as shown in FIG. 33 and the long hole 46 can be inserted. The binding 2 is configured as described above, and the processing is mainly performed by punching, embossing, polishing, or the like because the material of the binding 2 is duralumin which is not suitable for cutting such as drilling with a drill machine or a milling machine. It is performed by

The operation of the embodiment of the present invention will be described below. The binding body 4 is placed on a desired nut 11 position of the snowboard 1. At this time, the desired nut 11 is placed so as to correspond to the long hole 46 formed in the binding body 4. Next, the fitting concave portion 31 of the fixed plate 3 is fitted to the fitting convex portion 44, and the fixed plate 3 is placed on the binding body 4. In this state, the binding body 4
The fixing plate 3 is rotatable about the fitting projection 44 and the fitting recess 31. Next, the fixing plate 3
The bolts 5 are inserted into the fixing holes 33 and the long holes 46 so that the fixing holes 33 correspond to the desired nuts 11 respectively, and the engaging projections 32 of the fixing plate 3
5 and the binding body 4 with respect to the fixed plate 3
4 is screwed to the nut 11 to some extent in a rotatable state. Next, the fixing plate 3 is lifted in a state where the engagement projections 32 and the engagement recesses 45 are disengaged, the binding 4 is rotated to a desired angle, and the engagement projections 32 and the engagement recesses 45 are again rotated.
Is engaged. Then, screw the bolt 5 tightly again,
The engagement between the engaging projection 32 and the engaging recess 45 is not released, and the binding body 4 and the fixing plate 3 are strongly locked to the snowboard 1. As described above, in this embodiment, the fixing plate 3 is provided with the fitting protrusion 31 and the binding body 4 is provided with the fitting recess 45. However, if the fitting protrusion and the fitting recess can be fitted, the fixing is performed. The same operation and effect as described above can be achieved even if the fitting projection provided on the plate 3 is provided on the binding body 4 and the fitting recess provided on the binding body 4 is provided on the fixed plate 3. Similarly, the same operation and effect as described above can be achieved even if the engagement concave portion provided on the binding body 4 is provided on the fixed plate 3 and the engagement convex portion provided on the fixed plate 3 is provided on the binding body 4. .

[0014]

Therefore, according to the present invention, rigidity that does not cause deformation or the like due to a load or the like is secured, and even if an excessive load is applied during use by attaching a binding to a snowboard, a soft resin or the like can be used. Since the engagement between the engagement projections and the engagement recesses made of a hard material, not a material, does not cause a shift or the like between the snowboard and the binding.
Also, the angle adjustment at the time of mounting the binding can be adjusted at a small angle by providing the engagement recess finely.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view showing an embodiment of the present invention.

FIG. 2 is an explanatory view of a snowboard.

FIG. 3 is a partially enlarged view of the embodiment in FIG. 1;

FIG. 4 is a central longitudinal sectional view of the binding shown in FIG. 3;

FIGS. 5A and 5B are plan views of parts according to the embodiment, and FIG.
Is a rear view, (c) is a front view

FIG. 6 is an explanatory view of mounting the embodiment of FIG. 3;

FIG. 7 is an explanatory diagram showing a conventional example.

FIG. 8 is an explanatory diagram showing a conventional example.

FIG. 9 is an explanatory view of attachment of the conventional example shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 snowboard 11 nut 2 binding 3 fixing plate 31 fitting concave portion 32 engaging convex portion 33 fixing hole 4 binding body 41 bottom portion 42 side wall 42a side wall 42b side wall 43 heel cup 44 fitting convex portion 45 engaging concave portion 46 long hole 5 bolt

Claims (5)

(57) [Claims] 1. A structure of a fixing portion in a snowboard binding in which a binding body mounted on a snowboard is sandwiched between fixing plates and the fixing plate is fixed to fixing means provided in advance on the snowboard so that the binding body is attached to the snowboard. A plurality of fixing holes formed of a plate-like body and penetrating the plate-like body are formed at positions corresponding to fixing means provided on the snowboard, and one surface of the plate-like body is formed along a predetermined circumference on the plate. A fixed plate provided with a plurality of engaging projections formed by embedding a sphere, and a bottom formed of a plate-like body and side walls provided upright on both sides of the bottom, and having a predetermined circumference of the fixed plate. A plurality of engaging recesses provided in a concave shape at regular intervals along the circumference of the same shape as the Structure of the fixing portion of the snowboard binding also fixing holes at positions corresponding to the fixing hole of the fixing plate, characterized in that comprising a binding body that is bored. 2. A structure of a fixing part in a snowboard binding in which a binding body mounted on a snowboard is sandwiched between fixing plates and the fixing plate is fixed to fixing means provided in advance on the snowboard so that the binding body is attached to the snowboard. A disc-shaped plate-like body, a concave fitting recess is provided at the center of the plate-shaped body, and a predetermined circle centered on the fitting recess is provided around the end of the disk on which the fitting recess is provided. A plurality of engaging projections formed by embedding spheres along the circumference are provided, and the plate-like body is penetrated to the position corresponding to the fixing means provided on the snowboard inside the engagement projection on the surface of the plate-like body. A fixing plate having a plurality of fixing holes formed therein, a bottom formed of a plate-like body, and side walls provided on both sides of the bottom. Freely provided fittable fitting protrusion fitting recess and rotated to be,
A state in which a plurality of concave engaging concave portions are provided at regular intervals along a circumference having the same shape as the predetermined circumference of the fixing plate around the fitting convex portion, and the fitting concave portion and the fitting convex portion are fitted. And a binding body in which at least a long hole having a width larger than the diameter of the fixing hole is formed in a circumferential direction around the fitting convex portion at a position corresponding to the fixing hole of the fixing plate. Structure of fixed part in binding. 3. A structure of a fixing portion in a snowboard binding in which a binding body mounted on a snowboard is sandwiched between fixing plates and the fixing plate is fixed to fixing means provided in advance on the snowboard, so that the binding body is attached to the snowboard. A plurality of fixing holes formed of a plate-like body and penetrating the plate-like body are formed at positions corresponding to fixing means provided on the snowboard, and one surface of the plate-like body is formed along a predetermined circumference on the plate. A fixed plate having an engagement recess provided in a concave shape at regular intervals, and a bottom formed of a plate-like body and a side wall provided on both sides of the bottom, and having the same shape as a predetermined circumference of the fixed plate. An engaging projection formed by embedding a sphere along the circumference is provided, and the engaging projection and the engaging recess of the fixing plate are fixed at least in a fitted state. Structure of the fixing portion of the snowboard binding of fixing holes at positions corresponding to the fixing hole rate is characterized by comprising a binding body that is bored. 4. A structure of a fixing portion in a snowboard binding in which a binding body mounted on a snowboard is sandwiched between fixing plates and the fixing plate is fixed to fixing means provided in advance on the snowboard to attach the binding body to the snowboard. A disc-shaped plate-like body, a concave fitting recess is provided at the center of the plate-shaped body, and a predetermined circle centered on the fitting recess is provided around the end of the disk on which the fitting recess is provided. A plurality of concave engaging recesses are provided at regular intervals along the circumference, and a plurality of fixing holes penetrating the plate at a position corresponding to the fixing means provided on the snowboard inside the engaging concave on the surface of the plate. A fixed plate to be provided, a bottom formed of a plate-like body, and side walls provided on both sides of the bottom, and a fitting provided on the fixed plate at the bottom. Parts and rotatably fittable fitting convex portion is provided so,
A plurality of engaging protrusions are provided, each of which is formed by burying a sphere along a circumference having the same shape as a predetermined circumference of the fixing plate around the fitting protrusion, and a fitting recess and a fitting protrusion are provided. And a binding body having at least a long hole wider than the fixing hole diameter in a circumferential direction centering on the fitting protrusion at a position corresponding to the fixing hole of the fixing plate in a state in which the fixing hole is fitted. The structure of the fixed part in the binding for snowboards, characterized by the following. 5. A structure of a fixing portion in a snowboard binding in which a binding body mounted on a snowboard is sandwiched between fixing plates and the fixing plate is fixed to fixing means provided in advance on the snowboard so that the binding body is attached to the snowboard. A disk-like plate-like body, and a convex fitting convex portion is provided at the center of the plate-like body, and the fitting convex portion is centered around a disk end of a surface on which the fitting convex portion is provided. A plurality of concave engaging recesses are provided at regular intervals along a predetermined circumference, and the plate-like body penetrates to a position corresponding to the fixing means provided on the snowboard inside the engaging concave part on the surface of the plate-like body. A fixing plate having a plurality of fixing holes, a bottom formed of a plate-like body, and a side wall provided on both sides of the bottom, and the bottom has a fitting protrusion provided on the fixing plate. A concave fitting recess which is rotatably fittable with the fixing plate is provided, and a sphere is embedded around the fitting recess along a circumference having the same shape as a predetermined circumference of the fixed plate. A plurality of mating projections are provided, and at least a fixing hole diameter in the circumferential direction centering on the mating projection at a position corresponding to the fixing hole of the fixing plate in a state where the mating recess and the mating projection are fitted. A structure of a fixing portion in a snowboard binding, comprising a binding main body having a wider slot.