| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of a void easy to occur when sound absorption and insulation panels are arranged in parallel as much as possible without specially increasing dimensional accuracy. SOLUTION: A large number of sound absorption and insulation panels 10 are tightly arranged in a line in every direction, and sound absorbing plates 20 are arranged toward a construction site to construct a soundproof wall, A belt 26 is stuck on at least two outside surfaces adjacent to each other among outside surfaces 15, 15... of one frame 12, for example, the outside surface 15 and top side 16 or the outside surface 15 and bottom side 17. The belt 26 is formed of an elastic material such as hard rubber, felt or the like, so that the adjoining sound absorption and insulation panels 10 and 10 can be easily adhered to each other, Then, the adjoining sound absorption and insulation panels 10 and 10 are approached to each other, and when the belt 26 is held between the frames 12 and 12, the belt 26 is expanded and contracted to make it possible to fill up a void between the frames 12 and 12.
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