| 摘要 |
To provide a good sound insulating panel structure having a light weight and a simple structure, the present device provides a sound insulating panel structure characterized by being constituted by filling one or more kinds of light filling materials in the inner space (depressed inner space) of a rectangular sound absorbing box constituted of a sound insulating material of surface plate in the shape of a plate or a side having many holes or slits within, whose one side is open; closing the one side with a cover constituted of a sound insulating material of surface plate; and sealing the one side by pouring bubble including cement coating layer on the cover.
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