| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing structure with improved sound insulation performance. SOLUTION: In this structure, a housing 3 comprises about two members, i.e., a cover member 31 and a case member 33, and the cover members 31 and the case member 33 are fixed through a prescribed gap such that the wall of the housing 3 is a multilayer wall. Namely, the cylindrical wall face of the housing 3 is a three-layer wall comprising an outer layer composed of the cover member 31, an inner layer composed of the case member 33, and a middle layer 32 composed of the gap between the cover member 31 and the case member 33 functioning as a sound insulation layer. |
