| 摘要 |
<p>PROBLEM TO BE SOLVED: To intercept and suppress the sound leakage into a cabin by improving the sound insulating performance of a grommet. SOLUTION: A grommet is constituted by the double-layer molding of a flexible foam body 11 and rubber 12 or elastomer which covers the whole surface of the foam body 11. Or, the grommet is constituted of a peripheral member consisting of rubber or elastomer and a filler member consisting of the flexible foaming body being set inside that peripheral member and also having a cable passage hole, thus the sound insulation is made by absorbing the sound with the foam body.</p> |
