| 摘要 |
PROBLEM TO BE SOLVED: To have a degree of freedom at the attached position for the upper story slab of a plate-like frame hanging support bolt and enable the minute adjustment of the attaching angle of an instrument by hanging and supporting a ceiling setting instrument on a plate-like frame fixed on an upper-story slab. SOLUTION: A universal fitting 3 is inserted in a frame hanging bolt 4 fixed on an upper-story slab 5, and a rib folded and formed on both the edges of the universal fitting 3 is tightened as a spacer by nuts to fix the universal fitting 3 on the upper-story slab 5. Bolts are inserted in an oblong hole provided in the universal fitting 3 and the bolt hole of a plate-like frame 1, instrument hanging bolts 6 are inserted in the plate-like frame 1 angle-minute-adjustably connected to hang a ceiling setting instrument. The plate-like frame 1 can be easily transported into a ceiling as foldable by a hinge 12. Thus, a degree of freedom is possessed at the attached position of bolts 4 for the upper-story slab 5 by attaching the instrument through the plate-like frame 1, and the minute adjustment of the attached angle of the instrument for a ceiling plate 11 is enabled. |
