PARKING DEVICE

摘要

A lock shaft 21 and a shaft member 31 (a plunger 32 and a permanent magnet 33) of a magnetic locking device 20 are arranged such that a moving direction thereof is orthogonal to a moving direction of a piston rod 12 of a hydraulic actuator 10. In a parking lock released state, when the coil 34 is not energized, the lock shaft 21 and the shaft member 31 are locked by an attracting force between the permanent magnet 33 and a flange 35a of a yoke 35 so as not to move back from the piston rod 12, and, when the coil 34 is energized, the attracting force between the permanent magnet 33 and the flange 35a is canceled, so that the lock shaft 21 and the shaft member 31 are allowed to move back from the piston rod 12.