| 摘要 |
PROBLEM TO BE SOLVED: To restrain a shutter body from falling off, even when heated by a fire or the like, without changing a skeleton structure.SOLUTION: A fitting comprises an opening frame 10 having a rectangular opening 14 communicating with an opening part 2 of a skeleton 1, a storage frame 20 formed above the opening frame 10, and a shutter body 30 for winding and storing a shutter member 33 on a winding shaft 32, and comprises a bracket 40 formed of a material excellent in fire resistance more than a jamb 11 of the opening frame 10, arranged in the storage frame 20 by installing a plurality of fitting pieces 442 entering the inside of a hollow part 111 on an inside depth surface of the jamb 11 via a fitting screw 55 by placing a part on an upper end surface of the hollow part 111 of the jamb 11 and also stored in the storage frame 20 by supporting the shutter body 30.SELECTED DRAWING: Figure 3 |
