| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sound insulation panel excellent in sound insulation, which improves sound insulation between adjacent rooms of an existing house, or which can insulate noise to the outdoor even when playing a piano or any other musical instrument in a home. <P>SOLUTION: A sound insulation panel A is configured in such a manner that plates 21, 22 are respectively fixed on the surface and backside of a frame body 1 formed by combining frame materials, to form a hollow panel 3, a plurality of perforated panels 41, 42 having a number of through-holes 411, 421 are stored inside the hollow panel 3, the plurality of perforated panels 41, 42 and the plates 21, 22 fixed on the surface and backside are disposed in parallel at intervals, the perforated panels 41, 42 are mutually disposed in parallel at intervals, and the edge parts of the plurality of perforated panels 41, 42 are held by the frame body 1. <P>COPYRIGHT: (C)2013,JPO&INPIT |
