| 摘要 |
PROBLEM TO BE SOLVED: To juxtapose a plurality of long-sized support metal fittings while forming space capable of forming air outlets for at least air conditioning, to improve the appearance of a ceiling, on which ceiling mounting equipments are mounted, and to facilitate the installation works of these installed equipments and wiring-connection alteration construction works and inspection. SOLUTION: Lighting fittings 2 and a freely opening-closing cover-shaped plate 3 are juxtaposed between a pair of adjacent jaxtaposed support metal fittings 1 in the longitudinal direction of the above-mentioned support metal fittings 1. Ceiling mounting equipments 4 such as a sprinkler head, a fire detector 7, a speaker 8, an emergency illuminating lamp, etc., are set up in the space of the above-mentioned juxtaposed support metal fittings 1, 1 in the vicinity of the plate 3. |
