| 摘要 |
PROBLEM TO BE SOLVED: To improve security in a building door provided with an electric lock device while allowing the mounting work of the electric lock device. SOLUTION: The building door 10 is provided with an electric lock system 20. The electric lock system 20 includes the electric lock device 21 and a controller 22, the both being electrically connected through a wire 27 provided so as to pass through the internal space of an entrance door 14. A driving unit 24 of the electric lock device 21 includes a wire winding device. The wire winding device has the function of winding a part of the wire and retaining this state and further the function of releasing this retained state. The wire 27 is thereby laid in a looseness-free state and in a loosened state as needed. COPYRIGHT: (C)2008,JPO&INPIT
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