| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a grommet high in sound insulation performance. SOLUTION: This grommet is constituted of a main body 11 and an inner member 12, the main body is furnished with a small diametrical tubular part an a large diametrical tubular part branched from the small diametrical tubular part and extended in diameter and having a recessed part for car body engagement on an outer peripheral surface and a thin closed part projected from the large diametrical tubular part, a cavity part for sound insulation surrounded by the large diametrical tubular part and the small diametrical tubular part is provided, and the cavity part is closed by closing an opening of the main body by assembling an inner member to the main body. Additionally, a projected piece for sound absorption is projected in the closed cavity.</p> |
