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.COPYRIGHT: (C)2013,JPO&INPIT【課題】車椅子が段差を超える時、介助者は両手の力だけでは足りず、足で踏み下ろして前輪を持ち上げ、前輪を段差の上に置くようにしていた。【解決手段】車輪を車体フレームの下で前後に移動できるようにするとによって、前輪にかかる搭乗者の荷重を前輪から外し、介助者が軽く前輪を持ち上げられるようにした。【選択図】図1