To prevent a crescent lock capable of preventing lock-picking crime.
The crescent lock 1 is set to an interior side sash 71 of a sliding sash 7, turned around the horizontal axis L parallel with the sash face, fixed to the crescent lock body 11 having a handle 111 directing the vertical upward or downward when locking and to the interior side sash 71 of the sliding sash 7, attached to the base 13 pivoting the crescent lock body 11, a crescent receiver 12 with which the crescent craw 112 of the crescent lock body 11 in unlocking is engaged, and the exterior side sash 72 of the sliding sash 7, and the lock-picking preventive board 14 for preventing the lock-picking crime from the outdoor side provided in anyone of the exterior side sash 72, the interior side sash 71, and the base 13 so that the crescent lock positions at the exterior side of the handle 111 when locking.
| JP4094858 | Thumb turn block |
| JP3741279 | LOCKING HANDLE DEVICE FOR POP-OUT DOOR |
| JP2004183420A | 2004-07-02 | |||
| JPH0397619U | 1991-10-08 | |||
| JPH02125167U | 1990-10-16 |
Ichiro Irie
Juichi Nosue
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