| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheelchair that can climb over steps with relative ease. ! SOLUTION: A wheelchair 1 comprises at least a pair of right and left main wheels 3, and travels when the main wheels 3 are rotated by human power. The wheelchair 1 comprises an electric assist device that generates power to rotate the main wheels 3 by a minute angle. ! COPYRIGHT: (C)2015,JPO&INPIT |
