Patent ID: 7021093

Claim:
An electrically-driven steering lock device comprising: a lock stopper able to move so as to approach a steering shaft; a lock bar connected to the lock stopper and able to move integrally wit the lock stopper, and in a state in which the lock stopper has been moved toward the steering shaft, the lock bar projects toward the steering shaft and engages with an engagement groove of the steering shaft and locks the steering shaft, and in a state in which the lock stopper has been moved toward a side opposite the steering shaft, the lock bar moves toward the side opposite the steering shaft and releases locking; an urging device that urges the lock stopper toward the side opposite the steering shaft such that the lock bar is urged in a disengagement direction with respect to said engagement groove of said steering shaft; a gear driven to rotate by driving force from a drive source; a lock arm provided so as to be interlocked with the gear and so as to be engageable with the lock stopper, and due to forward rotation of the gear, the lock arm moves the lock stopper toward the steering shaft and holds the lock stopper and due to reverse rotation of the gear, the lock arm disengages the lock stopper such that the urging device urges the lock bar in said disengagement direction; and a cam provided so as to be interlocked with the gear and so as to be engageable with the lock stopper, and due to reverse rotation of the gear, the cam moves the lock stopper toward the side opposite the steering shaft to disengage the lock bar from said engagement groove of said steering shaft only when an urging force applied by said urging device is insufficient to disengage said lock bar from said groove.