| 摘要 |
<p>A sound absorbing structure of a floor surface capable of efficiently reducing noise propagating from a floor surface to an indoor of, for example, a car, a train, or an aircraft, characterized in that a sound absorbing composite body comprising a sound absorbing film and foaming sheets having a plurality of through-holes each of which is integrally laminated on both surfaces of the sound absorbing film is disposed between the floor surface and a carpet, and a sound absorbing layer is provided between the sound absorbing composite body and the carpet.</p> |
