| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock for an expansion gate, which can be easily shut. SOLUTION: The expansion gate includes two fixing portions which are installed at a distance between them, and an expansion portion which is horizontally expanded/contracted. The expansion gate has one end of the expansion portion fixed to the one fixing portion, and has a section between the fixing portions opened/closed by expanding/contracting the expansion portion. The lock 1 is used for the expansion gate. The lock 1 for the expansion gate includes a body portion 2 which is mounted on the other end side of the expansion portion or the other fixing portion, and a strike portion 3 which is mounted on the other fixing portion or the other end side of the expansion portion. The strike portion 3 has an almost horizontally arranged rod-like portion 12; and the body portion 2 includes an abutting portion which abuts on the strike portion 3, and a hook portion for winding the strike portion 3. The abutting portion and the hook portion interlocks with each other; and the hook portion is constantly urged in an opening direction. When the abutting portion is pushed in by a constant amount, the hook portion is urged in the direction of winding the strike portion 3. COPYRIGHT: (C)2011,JPO&INPIT |
