| 摘要 |
The side of the winch drum (3) is tubular, (15) and the drum is rotatable around a shaft (10) driven by a motor pref. via a redn. gear (9). The drive shaft has at its free end a coupling part (11) which is not rotatable with the drum, but is movable in the longitudinal direction of the drum and connected to a second coupling part (12). In a first movement position, the second part is out of engagement with the first, thus allowing the drum to rotate in relation to the shaft. In a second position, it engages the first part, thus coupling the drum to the shaft. - The second part is activated by a solenoid (14) acting through one end of the belt drum. In the drum side is a bush (18) for location of the drive shaft, and which is shorter in an axial direction than the nave so that a space (19) is formed around the shaft. In this space the shaft has a radial pin which comprises the first part. The second coupling part is cylindrical with a claw-type recess (12') at its end facing the pin. |
