JPH11192337A - Binding device for snow board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily attach/detach a binding device and to stabilize travelling by constituting the device so as to rotate a driving arm underfoot with a connecting rod which is connected to a boot heel part by means of stepping on the boot heel part and to operate the ratchet mechanism of a control unit. SOLUTION: A person puts on a boot 20 where the connecting rod 25 is fixed on its sole, steps on the binding device 10 of a snow board, positions the connecting rod 25 to the engaging groove of the driving arm 16 in a release state and steps on it. Thus, the connecting rod 25 is lowered by following the engaging groove and the guide groove of a bracket 13, the driving arm 16 is rotated counterclockwise and a rotary shaft 15 is rotated. Then, the fan- shaped gear of the ratchet mechanism is rotated counterclockwise and the sole of the boot 20 is abutted on the base plate part 11 of the binding device 10 so as to be stopped. Thus, the fan-shaped gear is engaged with a latch, the driving arm 16 is locked and the boot 20 is surely restricted. Thus, the device is easily attached/detached so as to attain stable travelling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a binding device used for a snowboard, and more particularly to a snowboard boot which reliably lowers the rear portion of the binding device only by stepping down a bottom plate of the binding device. While being restrained and fixed integrally with the snowboard,
The present invention relates to a snowboard binding device capable of releasing the restraint by a very simple operation simply by rotating the release lever with a finger or the like when releasing the restraint fixing.

[0002]

2. Description of the Related Art Conventionally, for example, various binding devices for skis are known. However, snowboards are relatively new, and binding devices dedicated to snowboarding have a sufficient binding force and simple binding and releasing operations. Moreover, no reliable device was found.

This is because, unlike skiing, in a snowboard, the left and right feet, and thus the left and right boots, must be restrained and fixed on a single board, and when the boots are fixed, the degree of freedom of the body is greatly restricted. . Therefore, the operability of a snowboard binding for quickly restraining and fixing the boot to the upper surface of the board in such an inconvenient state or releasing the restraint is extremely important. Further, the integrity of the snowboard and boots, like other skis and skates, greatly affects the maneuverability of the board.

[0004]

SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a snowboard binding which can securely fix a boot and a board, and is very easy to restrain or release. To provide. Another object of the present invention is to provide a snowboard that can be easily attached and detached and that can run stably by providing a snowboard boot with a special fixing and binding device operating rod.

[0005]

According to the present invention, there is provided a lock unit fixed to a side plate of a binding device, a gear shaft constituting a ratchet mechanism of the lock unit,
A rotating shaft supported by a side plate of the binding device and connectable to the shaft of the gear, a pair of drive arms inserted so as to be integrally rotatable with the rotating shaft; And a connecting rod coupled to a heel of the boot so as to cause the boot to bind.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific structure and operation of the present invention will be described with reference to the drawings. First, FIG. 1 is a plan view of a main part of a snowboard binding device 10 of the present invention, and FIG. In this specification, only one of the paired binding devices is shown.

In FIG. 1, a binding device 10 (on the right foot side) includes a bottom plate 11 and side plates 1 standing on both sides thereof.
2 and 12. Side plates 12, 1 on both sides
2, brackets 13 are fixed to the inside of the plate members, respectively. The both ends of the plate-like member bent as shown in the figure are fastened to the side plate portions 12, 12 by bolts and nuts 14, 14, respectively. It is done by wearing.
Although not shown, the binding device 10 itself fixes one pair to the upper surface of the snowboard by other appropriate fixing means.

A lock unit 30, which is simultaneously fixed by the bracket mounting bolts 14, is mounted on, for example, the outside of the left and right brackets 13, 13 (for example, further right outside of the right side plate on the right foot side). However, this will be described later in detail. The lock unit 30 is attached to the side plate 12 by the bolt 14
However, the present invention is not limited to this.

A rotating shaft 15 having a polygonal cross section, which is provided through the left and right side plate portions 12, 12 in FIG. 1, is generally constituted by a hexagonal column, and is inserted into the pair of brackets 13, 13. A hole (described later) also penetrates, and one end thereof is fitted into a polygonal connection hole provided on a gear drive shaft of the lock unit 30 described later.

Reference numeral 16 denotes each of the brackets 13, 13.
And a pair of drive arms which are inserted into the polygonal rotating shaft 15 with their own polygonal holes and whose rotation is regulated by the polygonal holes and the polygonal shaft. . The symbol S1 is wound around the polygonal shaft 15,
One end thereof is on the bottom plate 11 of the binding, and the other end is a coil spring which is engaged with the drive arm and constantly urges the drive arm 16 in the "release" direction.

FIG. 2 shows a cross section on the center side in FIG. 1, and shows a heel portion 22 of a sole 21 of a snowboard boot 20.
Is provided with a concave notch 23. 1, the connecting rod 25 fixed to the ceiling side surface of the recessed portion 23 by the pressing plate 24 has a width larger than the width of the heel portion 22 of the boot 20 and the brackets 13, 13 and the drive arm 16,
The heel portion 22 is slightly longer than the sum of the respective thicknesses of the heel portion 22 and is fixed to protrude from both sides in the width direction of the heel portion 22. Such fixing can be firmly fixed to the shoe sole 21 by the pressing plate 24 using bolts 26 or the like. Here, it is desirable that the interval between the inner sides of the brackets 13 and 13 be a value close to the width of the recessed portion 23 provided in the heel portion of the boot 20, as is apparent from FIG.

FIGS. 3 and 4 show in detail the relationship between the bracket 13 shown in FIG. 1 and the drive arm 16 disposed on the curved portion thereof. Holes are provided at the rear of the curved portion of the bracket 13 and at one end of the drive arm 16, respectively. The hole 17 of the drive arm 16 has the same shape as the rotating shaft 15 having the polygonal cross section.
The rotation of the drive arm 16 is transmitted to the lock unit 30 described later as the rotation power of the rotation shaft 15 by inserting and engaging the lock arm 30.

Also, a hole 18 formed in the bracket 13 is provided.
May be fitted with the end of the rotating shaft 15 and rotatably supported by a suitable bearing means, or may simply be in a penetrating state.
When the rotating shaft 15 is not supported by the hole 18 of the bracket 13, the rotating shaft 15 is provided at both ends thereof as shown in FIG.
2 is stably supported by applying appropriate bearing means.

At the end opposite to the hole 17 of the rotating arm 16 is formed an engaging groove 19 which is open at the end face thereof, and is fixed to the recess 23 of the sole 21 of the boot. The end of the connecting rod 25 engages while being lowered by stepping down. At the same time, the connecting rod 25 at the time of stepping down
As shown in FIG. 4, a guide groove G is formed in the curved portion of the bracket to guide the connecting rod 25. The movement of the boot 20 and the movement of the boot 20 in the front-rear direction with respect to the binding device 10 are accurately limited, so that the boot 20 is firmly fixed to the snowboard in cooperation with the operation of the lock unit described later.

FIGS. 5 and 6 are cross-sectional views of the lock unit 30 fixed to one outer side of the side plate portion 12 of the binding device 10 as shown in FIG. In general, the shaft 33 and the sector gear 31 of the unit case C which is divided into two and rotatably supported by the first bearing hole C1 are firmly fixed by any means. The sector gear 31
A claw portion of a latch 36 described later is engaged with the tooth portion 32, and a ratchet mechanism is formed by the both.

The shaft 33 of the sector gear 31 is provided with a polygonal shaft engaging hole 34, which penetrates the shaft 33 in the embodiment. It is not always necessary to make it penetrate, and it may be in a state where it is partially drilled.
The turning power is transmitted to the sector gear 31 by fitting one end of the rotation shaft 15 into the engagement hole 34. In this case, in the illustrated embodiment, the cross-sectional shapes of the rotation shaft 15 and the engagement hole 34 are regular hexagons.

A second bearing hole C2 provided in the case C of the lock unit 30 has a shaft 3 fixed to the latch 36.
7 is rotatably supported. Then, the latch 36 that rotates around the shaft 37 and the coil spring S2 that is engaged with an arbitrary portion of the case C and wound around the shaft 37,
The tip of the latch 36 always has the teeth 3 of the sector gear 31.
The latch is urged to rotate in the direction of engagement with the latch 2. In FIG. 5, reference numeral 38 denotes a guide plate fixed to the latch 36 by a pin 39 or the like, thereby ensuring a smooth relative movement between the gear 31 and the latch 36 in the ratchet mechanism.

The shaft 37 of the latch 36 is provided with a hole 40 having a polygonal cross section. The hole is engaged with a lock release lever L conceptually shown in FIG. The shaft 3 can be moved by operating the release lever L.
7, the lock in the ratchet mechanism is released by rotating the latch 36 in the opposite direction against the force of the urging spring S2.

It is to be noted that the gist of the present invention is to improve a device for fixing and restraining the rear portion of the boot to the snowboard.
The front portion of the boot is fixed and restrained by a conventionally known means, for example, a fixed belt, a tightening belt, or other appropriate means.

[0020]

The operation of the snowboard binding device of the present invention as described above will be described first.
A snowboarder wearing boots to which the connecting rod 25 is fixed to 1 has both feet set on the binding device fixed to the snowboard, respectively. In this case, after the tip of the boot is locked by a known fixing means (not shown), the connecting rod 25 of the boot is inserted into the engagement groove 19 of the drive arm 16 in the state shown in FIG. Step down with. As a result, the connecting rod 25 is provided with the engagement groove 19 and the guide groove G of the bracket 13.
It is guided by and descends. Along with this, the drive arm 16 is turned counterclockwise in FIG.
5, a sector gear 31 of a ratchet mechanism having a shaft 33 connected to the shaft by a polygonal engagement hole 34.
It is rotated counterclockwise in FIG.

Then, the sole 21 of the boot 20 stops at a position where it contacts the bottom plate 11 of the binding device, and the teeth 32 at the corresponding positions of the sector gear 31 and the tip claw of the latch 36 engage. The sector gear 31 and therefore the drive arm 16 are securely locked by the latch 36 which is rotationally biased by the spring S2. In this case, if the lock position of the drive arm 16 is set to a substantially horizontal position, the horizontal engagement groove 19 of the drive arm 16 and the bracket 13
Of the connecting rod 2 by the vertical guide groove G of
5 is surely restrained in the vertical and longitudinal movement of the boot.

In order to release the boot 20 from the snowboard, that is, to release the restraint in the lock unit 30, the ratchet mechanism is pivotally operated in the release direction conceptually shown in FIG. Of the latch 36 and the teeth 32 of the sector gear 31
Release the engagement with. Accordingly, reverse rotation of the drive arm 16 is allowed, and the boot 20, that is, the connecting rod 2
5 is free.

[0023]

According to the present invention, the boot can be fixed to the snowboard with one touch by a relatively simple mechanism and the restraint can be released, so that it is possible to provide a binding device having excellent operability which has not been conventionally achieved. Further, since the heel of the boot can be fixed and restrained on the snowboard on both sides thereof, it is possible to provide a binding device in which the maneuverability of the snowboard is extremely stable. Furthermore, both ends of the connecting rod of the boot are restrained and positioned in all of the front-rear direction, the up-down direction, and the left-right direction by the guide groove of the bracket, the engagement groove of the drive arm, and the inner surface of the curved portion of both brackets in the binding device. Therefore, it is very securely and firmly fixed, and the maneuverability of the snowboard becomes very good,
And so on.

[Brief description of the drawings]

FIG. 1 is a plan view of a binding device and a boot according to the present invention.

FIG. 2 is a side sectional view of a central portion of FIG. 1;

FIG. 3 is a side view of a bracket portion.

FIG. 4 is an exploded perspective view of FIG. 3;

FIG. 5 is a side sectional view of the lock unit.

FIG. 6 is a rear sectional view of the lock unit.

[Explanation of symbols]

 G Guide groove C1 First bearing hole C2 Second bearing hole S1, S2 Spring 10 Binding device 11 Bottom plate 12 Side plate 13 Bracket 15 Rotation axis 16 Drive arm 19 Engagement groove 20 Boot 21 Shoe sole 24 Pressing plate 25 Connecting rod 30 Lock unit 31 Sector gear 32 Tooth 34 Polygon engagement hole 36 Latch 38 Guide plate 39 Pin

Claims (4)

[Claims] 1. A lock unit fixed to a side plate of a binding device, a shaft of a gear constituting a ratchet mechanism of the lock unit, and a turn supported by the side plate of the binding device and connectable to the shaft of the gear. A drive shaft, a pair of drive arms inserted so as to be able to rotate integrally with the rotation shaft, and a connecting rod coupled to a heel portion of the boot so as to step down and rotate the drive arm. Binding device for snowboarding. 2. The rotating shaft has a polygonal cross section, is fitted with a polygonal hole having the same shape provided on the drive arm, and further has a hole having the same shape provided on a shaft of the lock unit. 2. The binding device for a snowboard according to claim 1, wherein the pedaling force of the boot is transmitted to the driving arm, the rotating shaft, and the gear of the ratchet mechanism. 3. The binding device for a snowboard according to claim 1, wherein the pair of drive arms are provided on a curved portion of a bracket fixed to both side plates of the binding device. 4. The binding device for a snowboard according to claim 3, wherein a guide groove for a connecting rod is provided on the bracket.