| 摘要 |
PROBLEM TO BE SOLVED: To provide an antitheft face lattice having high safety capable of preventing a crime of intruding from an external part by issuing an alarm by electrically detecting this breaking when a joining part of the face lattice and a bracket for installing this face lattice on the building side is broken. SOLUTION: A switch 7 detecting this release when joining of the bracket 4 and a frame member 2 is released, is arranged in a position of the joining part of the frame member 2 and the bracket 4 for installing this face lattice 1 on the building side on the inside of the frame member of the face lattice 1. A power source 8 and a sounder 9 electrically connected to the switch 7 are similarly arranged inside the frame member. The sounder 9 sounds a voice when the switch 7 detects this release when the joining of the bracket 4 and the frame member 2 is released. COPYRIGHT: (C)2007,JPO&INPIT
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