| 摘要 |
PURPOSE: To certainly lock a lid while opening the lid by weak force. CONSTITUTION: Two outwardly turned pawls 21b, 22b are energized by a tensile spring 37 to lock the projection parts 30b, 30b of a lid 16. When a slide switch 26 is moved to the right from this state, the pawls 21b, 22b are detached and the opening of the lid becomes possible. Since a lever 25 is rotated by opening the lid and an engaging groove 25 is engaged with an engaging part, the pawls 21b, 22b are held to an open state. When the lid 16 is closed, the lever 25 is pressed downwardly by the projection part 30b and the engaging groove 25b is detached from the engaging part 34 and the pawls 21b, 22b lock the projection parts 30b, 30b. Since the pawls 21b, 22b are turned outwardly, certain lock becomes possible. Since the operation of lock parts 21, 22 is performed at the closing time of the lid by pressing the lever 25, the lid 16 can be locked by weak force. |
