| 摘要 |
PROBLEM TO BE SOLVED: To enhance workability when attaching a fire alarm to a suspension unit 1 attached to a wall face or the like, and to make inconspicuous a hook part 2 in a fire alarm side. SOLUTION: The suspension unit 1 and the hook part 2 are formed plate-likely. The suspension unit 1 is formed with a plate-like base part 11, a frame 12, a pair of hook parts 13, 13 and a boss 14. the hook part 2 is formed in a backplate 10A1 of an outer casing. The hook part 2 is formed with a plate-like vertical plate 31, and a pair of protruded piece parts 22, 22. A vertical plate part 21 of the hook part 2 is engaged in between the pair of hook parts 13, 13 of the suspension unit 1. The rectangular boss 14 of the suspension unit 1 is engaged in an inside of a vertical groove 23 of the vertical plate part 21. The hook part 2 is pulled down with respect to the suspension unit 1, the protruded piece parts 22, 22 are engaged between press plates 131, 131 of the hook parts 13, 13 and the base part 11, and the protruded piece parts 22, 22 are engaged with the hook parts 13, 13. COPYRIGHT: (C)2010,JPO&INPIT
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