Abstract
Barrier-free equipment has been provided in traffic system such as a bus, a train and a passenger ship. Then many disabled persons and aged persons have been acting in society. In order to activate this movement, we are developing barrier-free equipment. In this study, we propose a special wheelchair with an infinitely variable transmission. The infinitely variable transmission consists of spherical pulleys and friction wheels. In this paper, we introduce the characteristics and technical problems of the mechanism.
