| 摘要 |
PURPOSE: A 2-shift wheel equipped with the speed gear of a manual wheel chair is provided to secure safety by preventing reverse motion of a wheel chair on a slope. CONSTITUTION: A 2-shift wheel equipped with the speed gear of a manual wheel chair includes wheels(10) for a wheel chair, a first hand rim(15), a speed gear, and a second hand rim(18). The first hand rim is installed at the inner ring of a wheel for the wheel chair and manually drives the wheel chair. The speed gear is installed at a fixed shaft which is the center part of the wheel. The second hand rim is installed at the speed gear and allows a user to directly apply power to the speed gear. |
