| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent the movement of a device at the time of helping a standing operation by providing a motor-driven movement braking device on an intermediate wheel which is a fixed wheel and performing braking based on electric signals. SOLUTION: A walking operation helping part is composed of front wheels composed of casters provided on front leg parts, rear wheels composed of the casters provided on rear leg parts 3a (3b, not shown in the figure) and the intermediate wheels 11a (11b, not shown in the figure) composed of the fixed wheels provided between the front wheels and the rear wheels. The moving operation braking parts 13a (13b, not shown in the figure) at the time of the standing operation of a user are respectively provided on the rear leg parts 3a (3b, not shown in the figure.) In the moving operation braking part 13a, when a solenoid 18a is operated, a member 19a connected to a straight motion moving part and a wheel abutting rod 16a are moved in a left direction, the wheel abutting rod 16a is abutted to the left intermediate wheel 11a and the rotation of the wheel is stopped by frictional force. When the solenoid 18a is released, the wheel abutting rod 16a is energized by a spring 17a and moved in a right direction from the left intermediate wheel 11a and the wheel becomes rotatable. |
