| 摘要 |
PURPOSE:To facilitate operation by catching the catching section of connecting fittings into the lateral groove of a ceiling board, fixing an abutting section to a cradling, inserting a joint board into the lateral groove and fitting the lateral groove of the next ceiling board to the cradling of another joint board. CONSTITUTION:A ceiling board 2 is formed by a square timber 3 and a veneer 4 connected in a frame shape, the square timber 3 is abutted against the underside of a cradling 1, and the right and left catching sections 11, 12 of connecting fittings are inserted into a lateral groove 6. The hold-down pieces 15, 16 of the connecting fittings are inserted between the cradling 1 and the square timber 3, and an abutting section 7 is abutted against the side face of the cradling 1. The abutting section 7 of the connecting fittings is fixed by a nail 19, and an underside section 14 is fastened by a nail 20 from a lower section. One side edge of a joint board 21 is inserted into the lateral groove 6 of the square timber 3, and the lateral groove 6 of the next ceiling board is inserted to the other side edge of the joint board 21 and the catching section 11. Accordingly, even when the space of a ceiling is reduced, the ceiling board can be mounted. |
