| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To certainly perform unlocking even when the unlocking becomes difficult by abrasion or the like of an actuator of a steering lock device. <P>SOLUTION: The actuator A of the steering lock device is provided with a rotation member 17 fitted to an outer periphery of a lock pin 14 and rotated by an electric motor 19. A helical cam groove 14e is provided on an outer peripheral surface of the lock pin 14 of an inner peripheral surface of the rotation member 17 and the outer peripheral surface of the lock pin 14, a ball 21 is interposed between the cam groove 14e and ball retaining grooves 17a, 17a of the rotation member 17, and a guide pin 23 planted on the lock pin 14 is made opposed to a cam surface 17d formed on the inner peripheral surface of the rotation member 17. When bottom parts of the ball retaining grooves 17a, 17a are worn and the lock pin 14 cannot be drawn out from a recession part 12a with the cam groove 14e, the lock pin 14 can be completely drawn out from the recession part 12a with the cam surface 17 and the guide pin 23. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
