PROBLEM TO BE SOLVED: To provide a sound proof body for a vehicle and a silencer for a vehicle in which a noise is sufficiently shielded across a wide frequency range, capable of utilizing a lamination structure of a thin film layer and a porous layer, for lighter weight, with no transmission resonance phenomenon accompanied which is apt to occur in connection with a low frequency region of noise.SOLUTION: A dash silencer DS is configured by stacking a one side layer 40, a middle side layer 50, and the other side layer 60. Here, the middle side layer 50 is formed as a non-ventilation thin film layer. The other side layer 60 is formed as a porous layer having a plurality of opening parts.SELECTED DRAWING: Figure 2

    【課題】薄膜層と孔開き層との積層構造を活用して、より一層軽量で、騒音の低周波数領域との関連にて生じがちな透過共鳴現象を伴うことなく、騒音を広い周波数範囲に亘り十分に防音するようにした車両用防音体及び車両用サイレンサーを提供する。【解決手段】ダッシュサイレンサーDSは、一側層40、中側層50及び他側層60を積層して構成されている。ここで、中側層50は非通気薄膜層として形成されている。また、他側層60は、複数の開孔部を有する孔開き層として形成されている。【選択図】図2


    Access

    Download


    Export, share and cite



    Title :

    SOUNDPROOF BODY FOR VEHICLE AND SILENCER FOR VEHICLE


    Additional title:

    車両用防音体及び車両用サイレンサー


    Contributors:

    Publication date :

    2016-04-14


    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 / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



    SOUNDPROOF BODY FOR VEHICLE AND SILENCER FOR VEHICLE

    ASAI TAKAHIRO / SATO JUNICHI / FUSHIKI SHINOBU | European Patent Office | 2018

    Free access

    SOUNDPROOF SHEET, METHOD OF MANUFACTURING SOUNDPROOF SHEET, AND DASH SILENCER FOR VEHICLE

    KIMURA KOJI / TSUTSUI ATSUHIRO | European Patent Office | 2022

    Free access

    SOUNDPROOF BODY AND AUTOMOTIVE FLOOR SILENCER

    UEDA KOSUKE / YAMAMOTO HIROSHI | European Patent Office | 2023

    Free access

    SOUNDPROOF BODY AND SILENCER FOR AUTOMOBILE

    KATO DAISUKE / UEDA KOUSUKE | European Patent Office | 2018

    Free access

    SOUNDPROOF BODY AND SILENCER FOR MOTOR VEHICLES

    KATO DAISUKE / UEDA KOUSUKE | European Patent Office | 2019

    Free access