JPH01126801U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of the present invention; Fig. 2 is a partially sectional front view of the state in which the anti-slip 7 is pushed up by an obstacle 8a from the state shown in Fig. 1 when the wheel moves to the left; FIG. 3 is a partially sectional front view of a state in which the anti-slip 7 is pushed up by an obstacle 8a from the state shown in FIG. 1 when the wheel moves to the right. FIG. 4 shows an example of implementation in which the brake 14 is released by the release 13.
5 is a partially sectional front view of the released state;
The figure is a partially sectional front view of a state in which the slide culm 5 is pulled into the holding device 4 with the anti-slip 7 raised and the brake 14 is activated. 1 is a wheel, 1a is a mounting bracket, 2 is a swing arm, 3 is a center point, 4 is a holding device, 5 is a slide culm, 6 is a slide spring, 7 is a non-slip, 7a is an operating point of the non-slip 7, 8 is a Road surface, 8a is an obstacle,
9 is a stopper, 13 is a release, 14 is a brake, 14a is a brake spring, 15 is a spring seat, and 16 is a housing.

Claims (1)

[Claims for Utility Model Registration] (1) (1) The position of the rotational center point 3 of the swing arm 2, which rotates in a plane substantially parallel to the rotational plane of the wheel 1, at a different position from the rotational center of the wheel 1. Provided for. (2) Attach the anti-slip 7 to the swing arm 2 via the holding device 4. (3) When the anti-slip 7 is pushed by an obstacle while the wheel 1 is moving (with coordinates that move together with the wheel 1), it first runs backwards and then upwards, and when it passes the obstacle 8a, it first moves forward and then downwards. Adjust the holding device so that it follows a series of trajectories that return to its original position. A wheel anti-slip elevating device characterized by being constructed as described above. (2) (1) Attach the slide culm 5 to the holding device 4. (2) A brake 14 is provided to constantly apply braking to the slide culm 5. (3) Attach a release 13 to a part of the vehicle body and adjust it so that the brake 14 is released when the slide culm 5 reaches a predetermined position (the center of the anti-slip 7 can be guided from above to the operating point 7a). A wheel anti-slip elevating device as set forth in claim 1, which is a utility model, and is characterized by being constructed as described above. (3) While the center of the anti-slip 7 is at the operating point 7a,
A utility model characterized in that a stopper 9 is provided which adjusts the stopper 9 so that it moves in the direction in which it is pushed when a large force is applied, but does not move when it is pushed with a small force below a certain level. A wheel anti-slip elevating device according to claim 1. (4) While the center of the pushed anti-slip 7 moves away from the operating point 7a, the sliding culm 5 moves according to the distance.
The anti-slip elevating device for wheels according to claim 1, further comprising a device for sliding and pulling the wheel into the holding device 4. (5) The anti-slip elevating device for wheels according to claim 1, which is characterized in that the swing arm 2 is provided with two slide culms 5 via a holding device 4. (6) An extrusion spring 6 is attached to the slide culm 5, and when the center of the anti-slip 7 leaves the operating point 7a, the sliding movement of the slide culm 5 is braked by the brake 14, and the center of the anti-slip 7 moves away from the operating point 7a. Lifting and lowering of the anti-slip wheel according to claim 1 of the registered utility model claim, characterized in that the release 13 and the brake 14 are adjusted so that when it returns to the top, the brake is released and the brake returns to the operating point 7a from above. Device. (7) A non-slip 7 is provided on the swing arm 2 via a holding device 4 and a hinged arm, and the non-slip 7
Registration of a utility model characterized in that the mechanism is adjusted so that when the body receives a push exceeding a certain force, the center traces a predetermined approximately elliptical locus and returns to the original position, the operating point 7a. A wheel anti-slip lifting device according to claim 1. (8) The anti-slip wheel according to claim 1 of the utility model registration claim, characterized in that a center for rotating the swing arm 2 backwards, a center for rotating the swing arm 2 forward, and another center point are provided at two locations. Lifting device.