| 摘要 |
A lightweight scooter with a pedal driven propulsion system incorporates a foot pedal mounted on a chassis that drives an idler sprocket to provide tension on a chain. The chain is coupled to a drive sprocket on the rear wheel to transmit the tension supplied by the foot pedal to a rotation of the drive sprocket, and consequently the rear wheel of the scooter. A one-way clutch permits counter rotation of the drive sprocket during the return of the foot pedal and the chain to the original position, which is aided by a return spring. The scooter is preferably also equipped with a folding mechanism including a linkage that locks in an open position to prevent inadvertent collapse of the scooter, and can quickly be manually disengaged to allow the scooter to fold compactly onto itself.
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