| 摘要 |
PROBLEM TO BE SOLVED: To simplify installation of a hanging bolt while easily taking away a mold form for installing a ceiling. SOLUTION: A ceiling insert 10 for fixing a hanging bolt is provided with a seat part 13 installed on a mold form for installing a ceiling and a bottomed cylindrical cap part 14 installed the seat part 13 consecutively. A through-hole 13a communicated with the inside of the cap part 14 and inserting a hanging bolt 12 is formed in the seat part 13. Furthermore, a locking member 15 elastically engaged with the screw part 12a of the hanging bolt 12 which is inserted in the inside of the cap 14, for moving the hanging bolt 12, in the inserting direction and for binding the move in the drawing-out direction, is provided with the cap part 14. |
