| 摘要 |
<p>PURPOSE:To get rid of a shock produced at the gear shifting time by arranging both a primary one-way clutch mounted in a pulley-used transmission line and a secondary one-way clutch mounted in a gear-mechanism-used transmission line in such directions that said clutches can transmit revolving force acting only from the driving side to the driven side. CONSTITUTION:A driving pulley 20 is mounted on a driving shaft 16 via a primary one-way clutch 18 and a driving gear 42 is mounted thereon via a secondary one-way clutch 40. Both the clutches are arranged in such directions that they can transmit revolving force acting only from the driving shaft to the driven shaft and the speed change ratios of both the transmission lines may coincide with each other, whereby creating no shock at the gear shifting time.</p> |
