To provide a long material for a ceiling board having high designability and capable of being manufactured at low cost.
A locking edge 4 which supports an end part of a ceiling board is composed of: horizontal parts 9 extending from a lower end of a vertical side part 2 toward the outer sides thereof; a pair of suspended parts 10 extending downward from the outer ends of the horizontal parts 9; a pair of port edge parts 11 extending inward from the lower ends of the suspended parts 10; and a bottom groove 6 in a longitudinal direction opening between both port edge parts 11. Further, the locking edge part 4 is formed of a single painted metallic plate 30 of which both sides are coated with colors different from each other, and one surface side of the painted metallic plate 30 is exposed to the lower surface of the port edge part 11, while the other surface side of the painted metallic plate 30 is exposed to the lower bottom surface of the horizontal part 9 and the inside surface of the suspended part 10.
| WO/2006/135193 | CEILING PANEL SYSTEM |
| JP2612142 | STRUCTURE FOR ATTACHMENT OF CEILING |
| JPH05171734 | CEILING BAR |
| JP2004300911A | 2004-10-28 | |||
| JPH0515857B2 | 1993-03-02 | |||
| JP2007303267A | 2007-11-22 | |||
| JP2004300911A | 2004-10-28 |
Yu Yamamoto
Yasutoshi Iwata
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