Cushioning sound absorbing material and the sound absorbing structure
2009
An object of the present invention is to provide a cushioning sound absorbing material showing a light weight and excellent cushioning sound absorbing effect. In the The present invention provides a cushioning sound absorbing material 1 comprising a surface layer material 3 which is laminated on the porous member 2 and the porous member 2, the surface layer material 3, by at least stretchable paper material 5 cushioning sound absorbing material 1 is provided having a layer composed. The cushioning sound absorbing material 1 is mounted on coated panels 7 for covering the example noise sources such as an engine cover. Then, the porous member 2 is a coated panel 7 side, by the surface layer material 3 is disposed so that the noise source side, the cell structure between the cover panel 7 and said surface layer material 3 is formed It is. .FIELD 1
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