| 摘要 |
PURPOSE:To reduce time for mounting by fixing a split nut storing part having a tapered inside space at a bottom part having a hole for inserting a hanging bolt and by storing a two-piece split nut in this inside space. CONSTITUTION:A hole 1a for inserting a hanging bolt is provided at the center of a hanger bottom part 1, and a split nut storing part 4 having an opening 4a is fixed to the lower part of this bottom part 1. And a two-piece split nut 5 having the tapered outside shape corresponding to a tapered inner wall 4b is stored in this split nut storing part 4 so as to form a ceiling hanger. Then, this ceiling hanger is inserted into a dovetail groove 6a of a deck 6, and the hanging bolt 7 is inserted from the opening 4a of the split nut storing part 4. Thus, the hanging bolt can be easily mounted to the hanger. |
