| 摘要 |
PROBLEM TO BE SOLVED: To improve the state of the mounting of ceiling boards spread all over a foundation material and to prevent faults both on appearance and on usage. SOLUTION: Folded-plate roof support fittings 3 are placed and fixed onto a foundation material 2, sections to be held 18 formed to bottom plates 29 consisting of at least flat undersides of long-sized ceiling-board supporters 4 are held among projecting piece sections 17 projected in the longitudinal direction of the folded-plate roof support fittings 3 and the foundation material 2 and stretched on the foundation material 2, and a fixed state in which the ceiling-board supporters 4 are not rocked even to the left and the right even in upper and lower sections. |
