| 摘要 |
PROBLEM TO BE SOLVED: To provide an unlocking preventing implement capable of easily attaching and detaching an opaque cover of a locking operation part for locking and unlocking by bare hand without requiring a special key by installing a hook part with an elastic function and easily opening and closing doors. SOLUTION: In this unlocking preventing implement 1, a first crescent type lock 19 comprises a crescent 83 which is pivotally supported on a base plate 20 fitted to the vertical rail 15 of the first sliding door rotatably about a shaft 22 and has a lever 84 at its one end and a lock operation part (lock arm) 26 engaged with or disengaged from a crescent receiving part 28 fixed to the vertical rail 16 of the second sliding door to restrict locking and unlocking. The opaque box-shaped cover body 2 covering the locking operation part (lock arm) 26 is detachably installed with a pair of hooks 11 and 12. COPYRIGHT: (C)2006,JPO&NCIPI
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