| 摘要 |
A winch having a drum and a gearbox, wherein the gearbox houses planetary gearing for driving the drum, and a coupling device for selectively changing the rotational speed of the drum. The coupling device comprises two interconnected dog elements which are rotatable by the winch motor and are positionable along the rotational axis of the drum at three locations to variously engage the drum and/or gearing for a selected drum speed. |
