| 摘要 |
PROBLEM TO BE SOLVED: To overcome a problem that, since a crescent lock installed on a glass door or an aluminum sash, etc. is intended for crime-prevention and security to prevent intrusion from outside, a worker loses means to return inside when an infant or a child locks from inside by mistake while the worker is at work outside. SOLUTION: A locking stopper 4 is attached to the fixing bracket 2 of the crescent lock while the crescent lock is in a released state, and by controlling the interlocking of a rotatable section 1 and the fixing bracket 2, the released state is maintained. The locking stopper 4 can be easily attached while being held with the fixing bracket 2, so that remodeling of the crescent lock is not required. The locking stopper 4 is in a thin shape without projections to allow the opening and closing of the glass door or aluminum sash, etc. while being attached to the fixing bracket 2. COPYRIGHT: (C)2011,JPO&INPIT
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