| 摘要 |
<p>A vehicle drive mechanism for a vehicle such as a bicycle (20) includes a spring assembly (21) coupled to a shaft (23) and loadable via first and second pedals and levers (31-34). Once the spring passes a threshold, the spring (21) is able to contract by its own contraction force, which causes rotation of the shaft (23) and thus rotation of the wheel (35) to propel the bicycle forwards.</p> |
