| 摘要 |
<p>An electric steering lock apparatus includes a cam plate (5) rotated in an unlocking direction and a locking direction by driving a motor unit (4), and a lock shaft (8) shifting between a lock position at which the rotation of the steering shaft is prevented and an unlock position at which the rotation of the steering shaft is permitted, following to the sliding surface of the cam plate (5), wherein, at the position of the cam plate (5) at which the lock shaft (8) is located at the unlock position, the center of rotation (O) of the cam plate (5) is set at an eccentric position with respect to the position of the center of gravity (G) of the cam plate (5) so that the rotation torque resulting from the own weight of the cam plate (5) acts in the unlocking direction as well as the contact position at which the sliding surface (6) of the cam plate (5) comes into contact with the cam abutment surface (10) of the lock shaft (8), is set so that the rotation torque resulting from the external force (F) acting on the cam plate (5) from the lock shaft (8) acts in the unlocking direction. <IMAGE></p> |
