To provide a partition panel which can more secure quietness even when a hole is provided, than heretofore.SOLUTION: A partition panel 10 has a double wall structure part 20 which has an air chamber 21 formed on an internal part and has a double wall structure in the vehicular longitudinal direction. The double wall structure part 20 is formed as a double wall structure over the whole region except portions becoming a luggage chamber opening 30 and a passenger chamber side opening 40. Therefore, as compared to a case having a portion becoming a single wall structure, transmission sound which is transmitted through the partition panel in the vehicular longitudinal direction from a luggage chamber 1 side to a passenger chamber 2 side can be reduced. Further, a luggage chamber side opening 30 and a passenger chamber side opening 40 have flow path cross-sections smaller than that of the air chamber 21. Therefore, the partition panel 10 can be made to function as an expansion type muffler, and can reduce passing sound pressure which enters the air chamber 21 from the luggage chamber opening 30 and passes from the passenger chamber side opening 40 to the passenger chamber 2 side.SELECTED DRAWING: Figure 4
【課題】孔が設けられていても静粛性を従来よりも確保できる、パーティションパネルの提供。【解決手段】内部に空気室21が形成されており車両前後方向に二重壁構造となる二重壁構造部20を有しており、該二重壁構造部20が、荷室側開口30と客室側開口40となる部位を除いて、全域にわたって二重壁構造となっている。そのため、一重壁構造となる部位を有する場合に比べて、荷室1側から客室2側へ車両前後方向にパーティションパネル10を透過する透過音を低減できる。また、荷室側開口30と客室側開口40が、空気室21に比べて、流路断面積が小となっているため、パーティションパネル10を拡張型消音器として機能させることができ、荷室側開口30から空気室21に入って客室側開口40から客室2側に抜ける通過音圧を低減させることができる。【選択図】 図4
PARTITION PANEL
パーティションパネル
2024-04-10
Patent
Electronic Resource
Japanese
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
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