To provide a sound insulation structure which enables improvement of acoustic insulation while inhibiting weight and cost increase.SOLUTION: A sound insulation structure includes: a mass part 11 which is disposed at a spacing from an outer panel 5 partitioning an internal space from an external space of a vehicle body and has a planar shape in at least a part thereof; and multiple spring parts 12 which are disposed at the side facing the outer panel 5 in the mass part 11. The spring part 12 has: a hollow film material 14 having airtightness and flexibility; and a gas 15 enclosed in the film material 14.SELECTED DRAWING: Figure 3

    【課題】重量増加、コストの上昇を抑えつつ、遮音性を高めることのできる遮音構造を提供する。【解決手段】車体の内部空間と外部とを区画するアウターパネル5に対して間隔をあけて配置され、少なくとも一部に平面形状を有するマス部11と、マス部11においてアウターパネル5に対向する側に複数配置されたバネ部12と、を備え、バネ部12は、気密性及び可撓性を有した中空の膜材14と、膜材14の内部に封入されたガス15と、を有する。【選択図】図3


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    Title :

    SOUND INSULATION STRUCTURE


    Additional title:

    遮音構造


    Contributors:

    Publication date :

    2018-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung



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