| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel door lock capable of preventing thumb-turn rotation. SOLUTION: An indoor side operation member 8 operating a cam 6 of the door lock 1 which moves a dead bolt 7 to a locking position or an unlocking position by the operation of the cam 6 provided in a lock case 5 is operated by a transmission mechanism 10 by a thumb turn 9 laid in an arbitrary position separate from the lock case 5. COPYRIGHT: (C)2004,JPO
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