To provide a soundproof member for a vehicle having sound insulation performance and sound absorption performance in a balanced manner.SOLUTION: In a soundproof member for a vehicle in which a decoupling layer and a mass layer overlap with each other, the mass layer has a resin-containing layer to which a member containing a resin having a predetermined range of non-uniform size is bonded, a non-woven fabric bonded to a decoupling layer side of the resin-containing layer, and an opening part, and has a ventilation layer bonded to a decoupling layer side of the non-woven fabric. The resin-containing layer and the non-woven fabric may be bonded to each other by melting the resin. The resin-containing layer may be bonded by shredding the heated and bonded resin fiber layer and then heating the shredded resin fiber layer.SELECTED DRAWING: Figure 1

    【課題】遮音性能と吸音性能のバランスをとられた車両用防音部材を提供する。【解決手段】デカップリング層と質量層とが重ねられた車両用防音部材であって、質量層は、所定範囲の不均一な大きさの樹脂を含む部材が接着された樹脂含有層と、樹脂含有層のデカップリング層側に接着された不織布と、開孔部を備え、不織布の前記デカップリング層側に接着された通気層とを有することを特徴とする。樹脂含有層と不織布とは、樹脂が溶融することによって接着されていてもよい。また、樹脂含有層が、加熱成形された樹脂繊維層が細断された後に、さらに加熱されることによって接着されたものであってもよい。【選択図】図1


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    Title :

    SOUNDPROOF MEMBER FOR VEHICLE


    Additional title:

    車両用防音部材


    Contributors:

    Publication date :

    2020-12-10


    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



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