| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock device as structurally simple as possible. SOLUTION: A rotational locking component 26 and a spring member 28 are arranged on the front portion 22 of a drawer. The spring member, which has a dead point between the locking position 26P and opening position 26P' of the rotational locking component, selectively urges the rotational locking component in the directions A and B of normal and reverse rotations. The rotational locking component is provided with an arc-shaped slot 30, and first and second recesses 32 and 34. In a drawer-stored state, the first recess can be engaged with a locking rod 14 which is provided in a casing. When the drawer is pulled out, the rotational locking component in the locking position abuts on the locking rod, and rotates against an urging force, so that the locking rod can be disengaged from the first recess. In the storage of the drawer, a front wall surface 32A of the rotational locking component in the opening position abuts on the locking rod, so as to be driven in one rotational direction. A protrusive member 36 for the drawer is engaged with the slot, so as to regulate the rotating range of the rotational locking component, and an engaging/disengaging member 40 of the drawer can be engaged with/disengaged from the second recess 34 of the rotational locking component in the locking position. COPYRIGHT: (C)2009,JPO&INPIT
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