| 摘要 |
<p>The assembly (10) has a step-up gear (16) for transmitting input speed of a driving shaft (12) into output speed of a driven shaft (14). A sleeve-shaped freewheel (32) is arranged between the driving and driven shafts. Another sleeve-shaped freewheel (46) is arranged between a housing (48) within which the assembly is partially received and a component of the step-up gear. Locking directions of the freewheels are reversed with respect to rotation directions of the driving shaft. The freewheels switch between two or multiple transmission stages by reversal of the rotation directions. The step-up gear is formed as a spur gear.</p> |
