| 摘要 |
PURPOSE:To make speed control ever so easy, by coupling an output shaft with a ring gear via a torque limiter, while interposing a pin, which is operated by a cam of the output shaft, between the ring gear and a case. CONSTITUTION:A planet carrier 19 and a ring gear 5 belonging to an output shaft 27 are coupled together via a torque limiter 17, while a pin 29, which is operated by a cam 23 of the output shaft 27 and capable of engaging with a case 1, is slidably installed inside the ring gear 5. With this constitution, when low load in the output shaft 27 is the case, transfer torque out of an input shaft 15 is transmitted to the output shaft 27 in a high speed, low torque state as it is via the torque limiter 17 but when high load in the output shaft is the case, the torque limiter 17 is released, having the pin 29 engaged with the case 1 by the cam 23, giving low speed, high torque to the output shaft 27, so that speed control can be easily carried out.
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