| 摘要 |
PROBLEM TO BE SOLVED: To provide a fitting capable of coping as a fireproof fitting, while exhibiting sufficient soundproof performance, on the suspension original side of the fitting.SOLUTION: A fitting comprises a sash, an opening frame of a building, a support tool for openably-closably supporting the sash in the opening frame of the building and an airtight material provided on the suspension original side of the sash. An airtight material engaging part continuing in the vertical direction is provided on an outer peripheral surface of the sash on the suspension original side, and a thermal expansion material engaging part continuing in the vertical direction is provided on an inner peripheral surface of the building opening frame on the suspension original side. An airtight material installed in the airtight material engaging part, is opposed to the thermal expansion material engaging part. |
