| 摘要 |
The disclosure describes a spring motor, in combination with a toy vehicle, that easily can be manufactured and wound up by moving the vehicle in reciprocating forward and backward movements. The motor is operable in rewind and run modes, and includes first and second spring gears; a spring having a first end yieldably engaged to the first spring gear and a second end connected to the second spring gear; a rear wheel axle having first and second drive pinions thereon, wherein the first drive pinion is meshed with the first spring gear; a rewind gear which is meshed with the second drive pinion of the rear wheel axle; a fixed gear that is meshed with the rewind gear; and a floating gear which is meshed with the fixed gear, wherein during the rewind mode the floating gear is meshed with the second spring gear, but during the run mode is disengaged from the second spring gear. A retaining lock is used to maintain the meshing of the second spring gear with the floating gear to prevent unwinding of the spring. Disengagement takes place when the vehicle is pushed in the forward direction thus causing the spring to unwind and drive the vehicle forward.
|
