| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceiling connection structure in which adjacent ceiling boards can be accurately and easily connected to each other and the joints can be firmly reinforced by extending reinforcing members along the joints and the boards can be easily connected even when these reinforcing members are extended along the joints. SOLUTION: A reinforcing member 3 is arranged along the non-overlapped face of a connection flange 2a of a first ceiling board 1a. The reinforcing member 3 is fixed to the connection flange 2a by driving fixing screws 5 from the bottom face of a first recess 4 to the reinforcing member 3. A connection flange 2b of a second ceiling board 1b is put along the connection flange 2a of the first ceiling board 1a and a second recess 6 and a protrusion 7 are fitted to each other to mutually position the connection flanges 2a, 2b. Fastening screws 8 are driven from the protrusions 7 into the reinforcing member 3 through the recesses 6 to connect mutual connection flanges 2a, 2b. A recessed groove 9 which is flush with the bottom face of the first recess 4 and the second recess 6 at the bottom face thereof is formed at the full length at the edge of the indoor face side of the overlapped face of the connection flange 2a of the first ceiling board 1a.
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