JP2006068179A - Binding for snowboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a binding for snowboard is usually fixed by screwing a bolt in a nut embedded in a snowboard, however, the bolt for fixing the binding is apt to become loosened due to various forces at the time of use, and maneuverbility decreases with loosening and when the loosening advances further, an injury of a user can be caused by failure or missing of the bolt. <P>SOLUTION: This binding clamping member for snowboard is constituted of a binding main body, a plate which presses the bottom surface of the binding main body from the upper side, and a clamping member which fixes the binding main body to the snowboard through the pressing plate. The clamping member comprises a bolt and a washer, and has a first anti-rotating means which is provided between the washer and the pressing plate, and a second anti-rotating means which is provided between the bolt and the washer. Thus, loosening during use is prevented from occurring, and in addition, the anti-loosening capability does not decrease even when the attaching/detaching is repeated. <P>COPYRIGHT: (C)2006,JPO&amp;NCIPI

Description

  The present invention relates to a structure for fixing a binding to a snowboard.

  Snowboard bindings are usually fixed to the nuts embedded in the snowboard with bolts, but the bolts that secure the bindings tend to loosen due to various forces acting during use, and the operability decreases due to loosening, Further, when the loosening progresses, the user may be injured due to breakage or dropout.

  As described in Patent Document 1, the conventional snowboard binding includes a pressing plate having a plurality of through holes, and each through hole is provided to receive a bolt for attaching the pressing plate to the upper surface of the snowboard. A technology having a fixed mounting position is disclosed, and by using a bolt (a countersunk screw) whose head is an inclined surface by making the contact surface of the head of the bolt and the through hole an inclined surface, the binding The bolt head is prevented from protruding from the bottom.

  In another conventional snowboard binding, as described in Patent Document 2, a means for interposing an elastic O-shaped ring on a bolt for fixing the binding to the snowboard is used. A structure is disclosed in which, when tightened, the ring is deformed and pushed into the gap between the bolt and the bolt hole to fill the gap between the screw and the screw hole, thereby preventing the screw from loosening.

Japanese Patent No. 2931405 Registered Utility Model Publication No. 3054329

    However, the conventional snowboard binding disclosed in Patent Document 1 does not disclose any means for preventing loosening, and has a drawback that the bolt is easily loosened.

  In the patent document disclosed in Patent Document 2, the head of the bolt is inserted into the bolt hole of the binding in order to prevent the head of the bolt from protruding from the bottom surface of the binding and interfering with the shoe sole of the user. It is necessary to provide a recess corresponding to the combined dimension of the part thickness and the locking thickness of the O-shaped ring, and in order to obtain sufficient strength, the thickness of the binding bottom needs to be excessively increased. In addition, the O-shaped ring is severely damaged when the bolt is attached and detached, and the structure is not suitable for repeated attachment and detachment.

  The present invention is to solve the above-mentioned problems, and to provide a snowboard binding that can be used comfortably and safely by a user by controlling loosening of a bolt against the action of various forces during use. It is what.

  The binding for a snowboard according to the present invention includes a binding body, a pressing plate that presses the bottom surface of the binding body from above, and a fastening member that fixes the binding body to the snowboard via the pressing plate. A snowboard binding comprising a bolt and a washer, wherein the presser plate has a through-hole through which a threaded portion of the bolt is inserted, and a contact surface that comes into contact with the washer. A first plate provided between the washer and the presser plate. And a second anti-rotation means provided between the bolt and the washer.

  Preferably, the first detent means includes an engaging claw provided on the washer and an abutting portion of the engaging claw provided on the pressing plate, and the second detent means includes It consists of the frictional force increase shape provided in each contact surface of the said volt | bolt and the said washer.

  Alternatively, the first detent means has a frictional force increasing shape provided on each abutting surface of the washer and the holding plate, and the second detent means has a contact between the bolt and the washer. You may comprise so that it may consist of a frictional force increase shape provided in the contact surface.

  The binding body includes a binding plate, a pressing plate that presses the bottom surface of the binding body from above, and a bolt that fixes the binding main body to the snowboard via the pressing plate, and the pressing plate passes through the screw portion of the bolt. In a snowboard binding having a through hole and an abutting surface that abuts against the head of the bolt, each abutting surface of the bolt and the pressing plate may be configured to have a frictional force increasing shape. good.

  As described above, the snowboard binding of the present invention has almost no decrease in mechanical performance even when the binding is repeatedly attached to and detached from the snowboard, and the bolts loosen due to various forces during use. There is a great advantage that the user can use it comfortably and safely.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a reference perspective view showing a method for attaching a snowboard binding of the present invention to a snowboard 1. A binding body 2, a pressing plate 3 for pressing the bottom surface 20 of the binding body 2 from above, and the pressing plate 3 A fastening member 4 for fixing the binding body 2 to the snowboard 1 is provided.

  The pressing plate 3 has a through hole 30 through which the screw portion 40 of the fastening member 4 is inserted, and the through hole 30 is formed by connecting five through holes 30 through which the fastening member 4 can be selectively inserted. Each of the through holes 30 has an inclined surface 31 for receiving an inclined portion 41 formed at the head of the fastening member 4 and a concave surface 32 for receiving a flat portion 42 formed around the inclined portion 41. Thus, it is possible to prevent the head portion 43 of the fastening member 4 from protruding from the binding bottom surface 20.

  2 to 7 show the main part of the binding for a snowboard according to the first embodiment of the present invention. The fastening member 4 is a washer 5 which comes into contact with the periphery of the through hole 30 of the pressing plate 3 from above. And a bolt 6 fixed to a nut 10 provided on the snowboard 1 via the washer 5 and the through hole 30, and a first detent means provided between the washer 5 and the presser plate 3. And a second detent means provided between the bolt 6 and the washer 5.

  The first detent means is achieved by the engagement claw 50 that extends from the side end of the washer 5 and is bent downwards abutting against the inner wall of the through-hole 30 to control the rotation. The Further, by narrowing the width of the front end portion of the engaging claw 50, a guide portion 51 is formed in the width direction of the engaging claw 50, and the engaging claw 50 of the washer 5 is automatically moved when the bolt 6 is fixed. Guided by the through hole 30, it is possible to prevent breakage due to interference between the engaging claw 50 and the pressing plate 3. The inclined surface 31 provided around each through hole 30 of the pressing plate 3 also has an effect of automatically guiding the engaging claw 50 of the washer 5 to the through hole 30 when the bolt 6 is fixed.

  The second detent means has a frictional force increasing shape provided on each contact surface of the bolt 6 and the washer 5, and the frictional force increasing shape is an inclination formed on the lower surface of the bolt head 61. Convex claws 63 provided continuously in a direction orthogonal to the circumferential direction on the surface 62 and continuous in a direction orthogonal to the circumferential direction on an inclined surface 53 formed on the contact surface of the washer 5 with the bolt 6. It is comprised by the ditch | groove 54 provided. And the engagement state of the convex nail | claw 63 provided in the said bolt 6 and the ditch | groove 54 of the said washer 5 rotates more strongly when rotating the bolt 6 in the loosening direction than rotating the bolt 6 in the tightening direction. As the torque is required, the angle between the engaging surfaces of the convex claw 63 of the bolt 6 and the concave groove 54 of the washer 5 is greater when rotating in the loose direction than when rotating the bolt 6 in the tightening direction. Set to approximate. The frictional force increasing shape is not limited to the above shape, and the bolt may be provided with a concave groove, and the washer may be provided with a convex claw. The shape may be acceptable.

  A Sems structure in which the washer 5 does not fall off from the bolt 6 (a shaft portion having a smaller diameter than the outer diameter of the screw portion 64 is provided between the head portion 62 and the screw portion 64 of the bolt 6, and the inner diameter of the hole portion of the washer 5. Is set to a size larger than the outer diameter of the shaft portion and smaller than the outer diameter of the screw portion 64, and is constructed so that the hole portion of the washer 5 is located at the shaft portion position of the bolt 6. Thus, when the bolt 6 is attached or detached, the washer 5 is not removed from the bolt 6 and lost, and the workability is improved.

  In the second embodiment of the present invention, as shown in FIG. 8, the first detent means in the first embodiment is provided with a convex pin portion 55 on the lower surface of the peripheral edge of the washer 5, and the convex pin portion 55 is The rotation is controlled by abutting against the inner wall of the through hole 30 of the holding plate 3 or the inclined surface 31 around the through hole.

  In the third embodiment of the present invention, as shown in FIG. 9, the first detent means in the first embodiment includes the lower surface inclined surface 56 of the washer 5 and the pressing plate 3 that contacts the lower surface inclined surface 56. And a concave groove 58 continuously provided in a direction orthogonal to the circumferential direction on the lower inclined surface 56 of the washer 5 and the inclined surface 31 of the pressing plate. In FIG. 2, the projection claw 35 is provided continuously in a direction orthogonal to the circumferential direction. The shape for increasing the frictional force is not limited to the above shape, and a convex nail may be provided on the lower inclined surface of the washer, and a concave groove may be provided on the inclined surface of the plate. Any shape other than the above may be used.

   In the fourth embodiment of the present invention, as shown in FIG. 10, a washer is not used for the fastening member 4, and the bolt 6 has an inclined portion 41 formed on the lower surface of the head 61 and a plane formed around the inclined portion 41. By providing the inclined portion 41 and the inclined surface 31 of the holding plate 3 with a frictional force increasing shape, the bolt 6 is prevented from loosening. The frictional force increasing shape includes convex claws 63 provided continuously in a direction orthogonal to the circumferential direction in the inclined portion 41 formed on the lower surface of the head 61, and the inclined surface 31 formed on the pressing plate 3. The groove 36 is provided continuously in the direction perpendicular to the circumferential direction. The frictional force increasing shape is not limited to the above shape, and a concave groove may be provided in the inclined portion 41 of the bolt 6 and a convex claw may be provided on the inclined surface 31 of the pressing plate to further increase the frictional force. Other shapes may be used as long as the shapes are combined.

It is a reference perspective view which shows the attachment method to the snowboard of the binding for snowboards of this invention. It is a perspective view of the principal part of the binding for snowboards of this invention. (Example 1) It is a top view of the principal part of the binding for snowboards of this invention. (Example 1) It is a side view of the bolt of the binding for snowboards of this invention. (Example 1) It is AA sectional drawing of the binding for snowboards of this invention. (Example 1) It is a side view of the washer of the binding for snowboards of this invention. (Example 1) It is BB sectional drawing of the binding for snowboards of this invention. (Example 1) It is a perspective view of the principal part which shows the modification of the binding for snowboards of this invention. (Example 2) It is a perspective view of the principal part which shows the further deformation | transformation of the binding for snowboards of this invention. Example 3 It is a perspective view of the principal part which shows the further deformation | transformation of the binding for snowboards of this invention. Example 4

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Snowboard 2 Binding main body 3 Holding plate 4 Tightening member 5 Washer 6 Bolt 10 Nut 20 Binding bottom face 30 Through-hole 31 Inclined surface 32 Concave surface 33 Inner wall 35 Convex nail 36 Concave groove 40 Screw part 41 Inclined part 42 Flat part 43 Head part 50 Grip 51 Guide part
53 Inclined surface 54 Concave groove 55 Convex pin part 56 Bottom inclined surface
58 concave groove 59 convex nail 61 head 62 inclined surface 63 convex nail 64 screw part

Claims (4)

  A binding body, a pressing plate for pressing the bottom surface of the binding body from above, and a fastening member for fixing the binding body to the snowboard via the pressing plate, the fastening member comprising a bolt and a washer, In the snowboard binding having a through hole through which the threaded portion of the bolt is inserted and a contact surface in contact with the washer, a first detent means provided between the washer and the press plate, and the bolt And a second anti-rotation means provided between the washers.   The first detent means includes an engaging claw provided on the washer and an abutting portion of the engaging claw provided on the pressing plate, and the second detent means includes the bolt and The snowboard binding according to claim 1, wherein the binding is made of a frictional force increasing shape provided on each contact surface of the washer.   The first detent means has a frictional force increasing shape provided on each abutment surface of the washer and the pressing plate, and the second detent means is an abutment surface of the bolt and the washer. The snowboard binding according to claim 1, comprising a frictional force increasing shape provided on the snowboard.   A binding body, a pressing plate for pressing the bottom surface of the binding body from above, and a bolt for fixing the binding body to the snowboard via the pressing plate, the pressing plate being a through-hole through which a screw portion of the bolt is inserted. And a snowboard binding having a contact surface that contacts the head of the bolt, wherein each contact surface of the bolt and the pressing plate is provided with a frictional force increasing shape. .