Abstract
Recently, the senior citizen's independence is requested in aging society. We are researching the Walk-Supporting Devise from which the senior citizen can stroll in the town. The country admits that even the difference of 20mm is Barrier-free. The first target of the difference getting over is 20mm. It is necessary to exceed 50mm to stroll in the town freely. The difference getting over device is necessary to get over the difference of 5mm easily. When getting off the difference, the high impact is generated. It is necessary to control the tire to cushion the shock.
