| 摘要 |
A operational mechanism for a movable body in which, the movable body is automatically returned to a closed position after the movable body is advanced to an open position is provided. One end of a reversing spring (32) is attached to a hook member (12), the other end of the reversing spring (32) is attached to a gear member (54). By pushing the hook member (12) from a pushed-in position, the gear member (54) rotates whereby a position at which a biasing force of reversing spring (32) acts (a biasing position) is changed with respect to the center of rotation (shaft 24) of the hook member 12. As a result, rotational force that rotates the hook member 12 towards the open position or the closed position is generated at reversing spring (32).
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