| 摘要 |
An automatic transmission for a toy vehicle includes a pinion having a driving side and a driven side and being fixedly coupled to a shaft, a high speed gear coupled to the pinion through a first clutch, and a low speed gear coupled to the pinion through a second, uni-directional clutch, wherein the second clutch slips in response to the first clutch being engaged to rotate the pinion at a relatively high speed, and wherein the first clutch slips when a predetermined force is applied to the driven side of the pinion, whereby the second clutch is engaged to rotate the pinion at a relatively low speed.
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