| 摘要 |
PURPOSE: To make efficient extinguishment of fire available by a method wherein additional apparatuses including smoke detectors, announcement loud speakers, etc., are installed in a plurality of corner areas and lighting apparatuses are arranged together with such additional apparatuses and furthermore a sprinkler head is provided at the center of a place surrounded by the lighting apparatuses. CONSTITUTION: Four outer T-bar members 1 are placed in intersectional arrangement to form a square, and double inner T-bar members 2, each in four numbers, are arranged inside a frame formed by the T-bar members 1. Then, lighting apparatuses 4 are arranged respectively at spaces between the outer and the inner bars of the double inner T-bar members, and additional appratuses such as smoke detectors R and announcement loud speakers S are arranged at four corner areas (b) formed by each of bar members of the T-bar members 2. Then, a sprinkler head 5, connected to a water supply pipe for a sprinkler, is arranged at the center of a square area (c) surrounded by the T-bar members 2. Therefore, the inside of a room is lighted up uniformly while an expected effect can be ensured at low cost for sprinkling. |
