| 摘要 |
PROBLEM TO BE SOLVED: To fix ceiling joists by easily attaching the ceiling joints on an arbitrary part of a ceiling batten. SOLUTION: Ceiling joints 2 wherein a ceiling member 11 is attached on lower part thereof are arranged at predetermined intervals. The ceiling joists 2 are fixed on a ceiling batten 3 arranged so as to orthogonalize to the ceiling joists 2. The ceiling batten 3 is supported by attaching on a supporting part 5 fixed on a structure. The ceiling joist 2 is fixed on the ceiling batten 3 through an engaging member 4 engaged on the ceiling batten 3. An opening 21 for inserting the engaging member 4 is formed on the ceiling joist 2. The engaging member 4 is provided with a first engaging part engaged on an locked part formed in the ceiling joist 2 by inserting from the opening 21 to the inside of the ceiling joist 2 to rotate at a predetermined angles, and a second engaging part protruded upward from the first engaging part to engage with the ceiling batten 3. |
