A sound absorbing material (3) attached to an exterior trim (1) for a vehicle is provided with an intermediate layer (4) which is a planar fiber web (7) containing thermoplastic synthetic fibers and formed by interweaving, and a surface layer (5) in which a planar nonwoven fabric (8) containing thermoplastic synthetic fibers is laminated on at least one surface of the intermediate layer (4). The sound absorbing member (3) has a peripheral edge portion (11), a flattened portion (14), and a sound absorbing portion (15b). The peripheral edge portion (11) is formed by thermocompression bonding of the laminated intermediate layer (4) and the skin layer (5) in a state of being compressed in the thickness direction along the peripheral edge. A plurality of flattened sections (14) are provided at intervals (L) in at least a partial region of the plane of the intermediate layer (4) and the skin layer (5) in the peripheral edge section, and the intermediate layer (4) and the skin layer (5) are thermocompression bonded in a state in which the intermediate layer (4) and the skin layer (5) are compressed in the thickness direction. The sound absorption part (15b) is formed by laminating an intermediate layer (4) and a skin layer (5) when the fiber web (7) is compressed to be thinner than the natural thickness by the flattened part (14).

    安装于交通工具用外饰(1)的吸声件(3)具有中间层(4)和表皮层(5),中间层(4)是含有热塑性合成纤维且交织成的面状的纤维网(7),表皮层(5)在中间层(4)的至少一个面上层叠含有热塑性合成纤维的面状的无纺布(8)而成。吸声件(3)具有周缘部(11)、压扁部(14)、吸声部(15b)。周缘部(11)是层叠的中间层(4)和表皮层(5)在沿周缘在厚度方向上被压缩的状态下被热压接而成。压扁部(14)在周缘部内在中间层(4)和表皮层(5)的平面中的至少一部分区域隔开间隔(L)地设置多个,是中间层(4)和表皮层(5)在厚度方向上被压缩的状态下被热压接而成。吸声部(15b)在纤维网(7)因压扁部(14)而被压缩至比自然厚度更薄的状态下由中间层(4)和表皮层(5)层叠而成。


    Access

    Download


    Export, share and cite



    Title :

    Sound-absorbing material, vehicle exterior provided with same, and method for manufacturing sound-absorbing material


    Additional title:

    吸声件、具备该吸声件的交通工具用外饰以及吸声件的制造方法


    Contributors:

    Publication date :

    2023-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / D04H Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material , MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL




    SOUND ABSORBING MATERIAL FOR VEHICLE EXTERIOR

    YAMAUCHI YUYA | European Patent Office | 2020

    Free access

    SOUND-ABSORBING MATERIAL AND WIRE HARNESS PROVIDED WITH SOUND-ABSORBING MATERIAL

    TAKATA YUTAKA | European Patent Office | 2018

    Free access

    SOUND-ABSORBING MATERIAL AND WIRE HARNESS PROVIDED WITH SOUND-ABSORBING MATERIAL

    TAKATA YUTAKA | European Patent Office | 2018

    Free access

    Sound-absorbing material and wire harness provided with sound-absorbing material

    TAKATA YUTAKA | European Patent Office | 2020

    Free access