| 摘要 |
<p>PURPOSE: To make it possible to prevent an engagement body from being pulled off from an engagement part by locking the engagement part of the engagement body even when an actuator is forcibly rotated and exert the function of a locking mechanism to a satisfactory extent by making difficult the turning of the actuator. CONSTITUTION: An engagement part 16 is formed on an actuator 6 which operates by turning from a stationary position. An engagement body 18 is provided, which is removably engaged with the engagement part 16 when the actuator 6 rests at an operation member 20 capable of reciprocating in the direction which intersects with the turning direction of the actuator 6 and thereby prevents the turning of the actuator 6 so that the engagement body 18 may be removed freely by moving the operation member 20. A locking part 26, which prevents removal from the engagement part 16 by pushing from the actuator, is formed on the engagement body 18.</p> |
