| 摘要 |
PROBLEM TO BE SOLVED: To provide a locking device capable of checking whether a revolving door or a sliding door is completely closed. SOLUTION: An auxiliary lock 1 having an auxiliary lock body 3 provided with a dead bolt 6 and a receiving member 5 is provided with permanent magnets 8 for detecting the door 4 located in a position where the dead bolt 6 can be inserted in a keyhole 7, and the auxiliary lock body 3 is provided with switches 13A, 13B for detecting the permanent magnets 8. COPYRIGHT: (C)2005,JPO&NCIPI
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