| 摘要 |
A wheelchair (10, 128, 150, 200) with a reclinable back rest (24, 230), the wheelchair (10, 128, 150, 200) being arranged such that as the back rest (24, 230) is reclined, the rear wheels (16, 248) of the wheelchair (10, 128, 150, 200) are automatically moved rearwardly to compensate for the rearward movement of the users' centre of gravity, and when the back rest (24, 230) is returned to a more upright position the rear wheels (16, 248) are automatically moved forwards. |
