| 摘要 |
PROBLEM TO BE SOLVED: To provide a locking method for reducing labor and cost required for increasing the number of locks of a door of an ordinary house and possibility of crime because labor and cost are required for drilling holes on the door and a wall to increase the number of locks of the door of the ordinary house, thereby preventing improvement of crime prevention. SOLUTION: A chain and a metallic pipe are attached to a fitting (a belt-like metallic plate bent to pass through a clearance among a door, a door frame, and a door stopper), and the fitting is attached by hooking it into a mortise. The chain is connected with a handle of the door to prevent a door opened by pushing from being opened. The metallic pipe is locked through a lock such as a pad lock to prevent a door opened to the front from being opened. COPYRIGHT: (C)2006,JPO&NCIPI
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