| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: when a wheelchair gets over a level difference, a helper steps down the wheelchair by treading to raise front wheels and places the front wheels on the step difference because the forces of both hands are insufficient.SOLUTION: The wheels can be moved back and forth under a vehicle body frame, so that a load of an occupant on the front wheels is taken off from the front wheels, and the helper can easily raise the front wheels. |
