JPH10225549A - Rear wheel steerable skate board for wasteland - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably stop in the wild geography or the like by constituting so that a rear wheel steering bar swings and a rear wheel rotates when a direction changing rear wheel steering operation plate is stepped down in the advancing direction by a rear pivoting foot. SOLUTION: When one side of a rear wheel steering operation plate 5 is stepped down, a connecting plate 9 integrally formed with the rear wheel steering operation plate 5 is swung to the opposite side of the stepping-down direction with a rotary shaft as the center. Then, a rear wheel steering bar 4 inserted into a connecting hole is also similarly swung. A rear wheel 10 connected to the rear wheel steering bar 4 also swings to the opposite side of the stepping- down direction of the rear wheel steering operation plate 5 to a landing point with a rear wheel frame rotary shaft as the center. Installation of the rear wheel steering bar 4 on a rear wheel rotating shaft 11 is constituted so that a vertical directional change is not exerted on the rear wheel 10, and is also constituted so as to prevent influence of a distance change in the connecting plate 9 and the rear wheel 10 when the rear wheel 10 is laterally swung. Here, when a hand brake operation part 1 is operated, a brake acts on the rear wheel 10, and stops it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear wheel steering wheel connected to a rear wheel steering operation plate on a direction desired to be turned on a rear foot of a skateboard for a wasteland sliding on a mountain slope or the like. For rough terrain equipped with a manual safety stop device that allows the direction bar to rotate the rear wheel to change direction and the handbrake operation unit to be able to move freely and to stop and decelerate safely even while balancing by hand About skateboarding.

[0002]

2. Description of the Related Art Conventionally, a method of turning a skateboard on a wasteland is to ride on a wooden flat board called a board and move the center of gravity of the body to the left and right of the board on a front wheel supported by a rubber bush or a spring. The wheel was turned in the direction of travel due to the deformation of the support part due to distortion, and the only way to stop it positively was to hold the wheel directly with your foot.

[0003]

Conventionally, in order to change the direction, the slope must be displaced by distorting the mounting portion of the front wheel by shifting the load on the board so that the tread surface of the front foot is bent. It is dangerous because it puts weight on the front wheel when climbing, and it is dangerous to use it, and it is often used as a snowboard practice or alternative during the snowboarding off season as a main application The change of direction was different from that of turning the vehicle by swinging backward with the front part being the center of rotation, which is the operational feeling of a snowboat.

[0004] The conventional structure in which two front wheels are used for turning direction is heavier than a structure in which one or two rear wheels are turned using a rear wheel steering operation plate, and a stopping device is not provided. The only way to hold the rear wheels with feet was to jump on rough terrain or on mountain slopes, and it was difficult to hold the wheels with feet.

[0005]

In order to solve the above-mentioned object, a turning method of the present invention is provided by depressing a rear-wheel steering operation plate for turning with a shaft foot rearward in a traveling direction. A connecting plate joined to the opposite side of the tread surface of the rear-wheel steering operation plate swings the connected rear-wheel steering rod to move the freely rotatable rear wheel. The operation feeling is very close because the same operation method can be used as when the boat is swung backwards and bent in an arc with the front part as the center of rotation, which is the operation feeling of the boat.

As another method of swinging the rear wheel steering rod, a spur gear and a rack are used, and when the rear wheel steering operation plate is depressed, several linked spur gears rotate. The rack moves linearly, and the rear wheel steering rod connected thereto is swung to move the freely rotatable rear wheel.

[0007] The amount of depression can be set by adjusting the rear wheel steering operation plate stop bar, which is near the rear wheel steering operation plate, so that the rear wheel is not set to a steep angle even with the maximum depression. The angle of the direction change can be adjusted according to the skill level.

To control the two front wheels, there are many factors causing an increase in weight such as a structure for connecting the two wheels and a structure for returning the two wheels, but one or two rear wheels are steered by the rear wheels. The control method using the operation panel requires a very simple structure, so that the weight can be reduced.

In a safety stop device for a skateboard on a wasteland, the brake operating part is connected to a brake caliper by a brake wire and a hose for protecting the wire. It is possible to pull the brake wire by holding the brake lever while taking it, and the brake caliper of the wheel sandwiches the wheel rim so that it can easily stop on any rough terrain.

As another method of stopping the rear wheel, the brake wire of the drum brake unit of the wheel stop unit is pulled by pulling the brake wire by grasping the lever of the brake operation unit that can be freely moved, and the wheel is wound around the drum. It stops safely.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings based on embodiments. 1 and 2, the rear wheel 10 is mounted on a rear wheel frame 12 by the support of a rear wheel rotation shaft 11, and the rear wheel frame 12 is mounted on a body frame 17 by a rear wheel frame rotation shaft 14. Can be rotated left and right with respect to the landing point.

When the rear wheel frame 12 is mounted in a forwardly inclined posture such that the rear wheel frame rotating shaft 14 is in front of the rear wheel rotating shaft 11, a load is applied to the rear wheel frame rotating shaft 14 and the rear wheel. The rear wheel 1 is dispersed on the rotating shaft 11.
0 indicates that the body is directed in the body advancing direction without applying an external force during the advancing.

When the rear wheel steering operation plate 5 is depressed, the connecting plate 9 is swung to the side opposite to the stepped position, the connected rear wheel steering rod 4 also follows, and the rear wheel 10 is moved to the connecting point by the connecting plate 9. As a result, the vehicle can be turned to the direction in which the rear wheel steering operation plate 5 is depressed by swinging backward with the front wheel 8 as a center with respect to the traveling direction.

Since the brake caliper mounting bracket 3 is joined to the rear wheel frame 12, the positional relationship between the brake caliper 15 and the rear wheel 10 does not change regardless of the direction in which the rear wheel 10 is directed, so that stable braking operation is possible. Becomes

When the hand brake operating part 1 is largely moved, the protective hose stopper 13 bends the brake wire 28 and the brake wire protective hose 2 greatly according to the movement, but the bending is directly transmitted to the brake caliper 15 and the brake shoe 37. Stop the effects from affecting.

The connecting plate 9 integrated with the rear wheel steering operation plate 5 in FIGS. 3 and 4 is depressed on one side of the rear wheel steering operation plate 5 so that the connection plate 9 is stepped around the rotation shaft 19. The rear wheel steering rod 4 which is swung to the side and is put in the connection hole 20
Similarly, the rear wheel 10 connected to the rear wheel steering rod 4 also swings about the rear wheel frame rotation shaft 14 to the opposite side where the rear wheel steering operation plate 5 is stepped with respect to the landing point. Things.

The rear wheel steering rod 4 is attached to the rear wheel rotating shaft 11 so that a change in the vertical direction due to the rotation of the connecting hole 20 is caused by the rear wheel 1.
The connecting plate 9 and the rear wheel 10 are also provided when the rear wheel is swung right and left. The effect of fluctuations in the distance from the camera is not affected.

The rear wheel steering operation plate stop bar 16 prevents the rear wheel steering operation plate 5 from rotating excessively.

5 and 6, the movement of the rear wheel steering operation plate 5 is transmitted by a spur gear and a rack, and if one side of the rear wheel steering operation plate 5 is depressed, the spur gear 22 is depressed.
However, the spur gears 23 and 24 meshing with the spur gears 23 and 24 rotate and mesh with the spur gears 25, and the rack 25 moves to the side opposite to the stepping side of the rear wheel steering operation plate 5. Connection hole 2 in the plate integrated below 25
The rear-wheel steering rod 4 connected to the rear wheel 0 is swung, and the rear wheel 10 is turned around the rear-wheel frame rotation shaft 14 and the rear-wheel steering operation plate 5 is opposed to the landing point. It can swing to the side.

6 and 7, when the brake lever 30 of the handbrake operating section 1 is gripped, the brake wire 28 is pulled around the pivot 27 as the center of rotation, and as a result, the brake caliper 15 closes and the wheel rim 34 is inserted. Stop.

When a large pulling force is generated in the handbrake operating section 1, the brake wire protection hose 2 corresponds to the pulling force.

The brake caliper 15 is returned to the original position by the caliper return spring 31 which is always opening along the brake caliper 15 around the pivot 33 of the caliper brake.

6 and 8, when the brake lever 30 of the handbrake operating section 1 is depressed, the brake wire 2 is released.
8 is pulled, and a bracket 39 is pivoted around the pivot 38.
The brake shoe 37 whose end is fixed to the brake shoe fixed end 35 winds around the brake drum 36 to stop and decelerate, and the brake shoe 37 returns to the original position by the coil spring 40.

[Brief description of the drawings]

FIG. 1 is an overall side view of a wasteland skateboard capable of rear wheel steering.

FIG. 2 is an overall plan view of a wasteland skateboard capable of rear wheel steering.

FIG. 3 is a rear view of a system using a connecting plate as a rear wheel steering operation plate.

FIG. 4 is a side view of a system using a connecting plate as a rear wheel steering operation plate.

FIG. 5 is a rear view of a system using a spur gear for the rear wheel steering operation plate.

FIG. 6 is a sectional view of a handbrake operation unit.

FIG. 7 is a view of a rear wheel caliper brake.

FIG. 8 is a view of a rear wheel drum brake.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hand brake operation part 2 Brake wire protection hose 3 Brake caliper mounting bracket 4 Rear wheel steering rod 5 Rear wheel steering operation plate 6 Rotating shaft support 7 Board 8 Front wheel 9 Connecting plate 10 Rear wheel 11 Rear wheel rotating shaft 12 Rear wheel Frame 13 Protective hose stopper 14 Rear wheel frame rotation shaft 15 Brake caliper 16 Rear wheel steering operation plate stop rod 17 Body frame 18 Rotation shaft stop 19 Rotation shaft 20 Connection hole 21 Joint holder 22 Spur gear 23 Spur gear 24 Spur gear 25 Should be Brake rack 26 Gear box 27 Pipot 28 Brake wire 29 Brake gripping part 30 Brake lever 31 Caliper return spring 32 Brake pad 33 Pipot 34 Wheel rim 35 Brake shoe fixing end 36 Drum for brake 37 Brake shoe 38 Pipot 39 Metal fitting 4 Coil spring

Claims (5)

[Claims] A rear wheel (10) is moved through a rear wheel steering rod (4) and a rear wheel frame (12) by a depression operation of a rear wheel steering operation plate (5) provided at the rear of the board (7). ) Can be operated left and right with respect to the landing point, and a handbrake operation unit (1) is provided, and a skateboard for wasteland with steerable rear wheels is provided. 2. When the rear wheel steering operation plate (5) is used as an operating means of the rear wheel (10) and is depressed in a direction to bend with the rotation shaft (19) being divided, the connecting plate (9) is rotated by the rotation shaft. (1
9), the rear wheel steering rod (4) is similarly swung through the connection hole (20), and the rear wheel (10) connected thereto is also swung, so that the front wheel is centered. The skateboard for wasteland terrain capable of rear-wheel steering according to claim 1, wherein the skateboard for rear-wheel steering can be turned to the side where the rear-wheel steering operation plate (5) is depressed on an arc. 3. A spur gear (22) as an operating means of the rear wheel (10) is provided on a surface opposite to a tread surface of the rear wheel steering operation plate (5).
Spur gear (2)
3), a spur gear (24) is located and a rack (25) is provided so as to mesh with the spur gear, and when the rear wheel steering operation plate (5) is depressed in a desired direction, the spur gear (22) is obtained.
However, the spur gear (23) and the spur gear (24) are rotated, and if they engage with each other, they are moved to the opposite side of the step surface of the rack (25), and are connected to the connection hole (20) on the lower side of the rack. The rear wheel steering rod (4) that has been moved similarly moves the rear wheel (10).
2. A skateboard for a wasteland with steerable rear wheels according to claim 1, wherein the skateboard can steer rearward on the arc with the front wheels as a center. 4. A handbrake operation part (1) in which a brake lever (30) is connected to a brake caliper (15) by a freely bendable brake wire (28) and a brake wire protection hose (2). The operating part (1) freely follows the hand and the brake caliper (15) is released by gripping the brake lever (30).
The brake pad (32) on the rear wheel rim (3
4. A skateboard for a wasteland capable of rear-wheel steering according to claim 1, wherein a manual safety device for stopping and decelerating 4) is mounted on the rear wheel portion. 5. A handbrake operation as a handbrake operation part (1), in which a brake lever (30) is connected to a brake shoe (37) by a freely bendable brake wire (28) and a brake wire protection hose (2). The part (1) freely follows the hand and the brake lever (3
2. A rough terrain capable of rear wheel steering according to claim 1, wherein a manual safety device for pulling the brake shoe (37) by pulling the brake lever (0) to retract and stop and decelerate the brake drum (36) is attached to the rear wheel portion. For skateboard.