| 摘要 |
<p>A hub clutch assembly (1) for a vehicle which comprises a drive axle (3), a wheel (31), and a housing (25) of a closed structure. The wheel is fixedly mounted on the housing. A clutch (73) is movable between a connecting position where the housing and the drive axle are connected to each other, and a disconnecting position where the housing and the drive axle are disconnected from each other. An actuator (101) is supplied with pressure to move the clutch to either the connecting position or the disconnecting position. A biasing element (97) is provided for biasing the clutch both to the connecting and disconnecting positions. A closed chamber (99) is defined between the housing and the actuator. A valve (105) is provided for allowing the pressure to escape from the closed chamber (99) to the actuator (101) when the actuator is inoperative and for cutting off movement of the pressure when the actuator is operative. <IMAGE> <IMAGE></p> |
