| 摘要 |
An actuator 6 is separated from an operation section. The actuator 6 has a lock member 10 which locks or unlocks a steering shaft 7 and a lock control mechanism 15. The lock control mechanism 15 includes an actuation member which is provided so as to be movable back and forth in a predetermined direction; a second spring 14 which serves as a spring for unlocking purposes; and a lock stopper 13 provided in order to receive the spring force of the second spring 14. The actuation member 12 is actuated by a motor 16.
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