| 摘要 |
PROBLEM TO BE SOLVED: To form a sound insulation wall at an arbitrary location in a room, which eliminates screws and nails, dispenses with large-scale construction work, facilitates disassembling and assembling thereof, does not form a gap, and is excellent in appearance. SOLUTION: An upper end of a sound insulation sheet 7 is fixed to a ceiling surface A in the room by means of an erected pile 4 which is fixed to an upper edge of an expandable support 1. Thus, the sound insulation sheet is hung from the pile in a room space.
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