Abstract
We have studied and developed the walking assist device with the power assist for outdoors walking. But we are planning the new device for the outdoors and indoors walking. At first, we changed the 3 wheels device from 4 wheel one for the size down. We should supply the device which can pass through the narrow passages such as the area of the home or the shop. Recently, using the walking assist device at the care support facility is increasing, to replace the wheel chair. Secondly., we tried to simplify the functions of the device and added to extend the variations of specification.
