Abstract
This article is study of walking assist device going beyond the bump. A basic result of study such as wheel diameter, Load distribution to wheel and impact power at the time of getting over, drive system, suspension mechanism is shown. Additionally we are examining the relation between height of the bump and getting over function, impact and attitude stability at the time of getting over. The bump getting over is one of the most important functions to assist walking,it is necessary to support the influence that the difference becomes a trouble for foot sending of walking.
