The present invention may reduce radiation noise caused by minute vibration by making several pieces connected to each other since a surface of dash insulation may be divided into several parts by forming an engraving line on a surface of a surface layer when dash insulation is manufactured by pressing a surface layer and a sound-absorbing layer. Particularly, the present invention may be manufactured to be thinner than a thickness of a sound-absorbing layer constituting a surface layer, so that radiation noise may be reduced while preventing a hole from being pierced in the dash insulation. In addition, the present invention forms a relief line in a metal mold used when bonding the surface layer to the sound-absorbing layer in a press-type manner, so that the engraving line will directly form the relief line on the surface layer when performing press compression to easily and conveniently form the relief line without adding a separate work process.

    본 발명은 표층과 흡음층을 압착하여 대시 인슐레이션을 제조할 때, 표층 표면에 음각선을 형성하여 대시 인슐레이션의 표면 전체를 여러 개로 나눌 수 있게 구성하므로, 여러 개의 조각을 서로 연결한 것과 같이 이루어지게 하여 미세한 진동으로 생기는 방사 소음을 줄일 수 있다. 특히, 본 발명은 표층을 구성하는 차음층의 두께보다 얇게 제작하여 대시 인슐레이션에 구멍이 뚫리지 않게 하면서도 방사 소음을 줄일 수 있다. 또한, 본 발명은 표층을 흡음층을 프레스 방식으로 접합할 때 사용하는 금형에 양각 선을 형성함으로써, 프레스 압착할 때 이 양각선이 표층에 바로 음각선을 형성하게 하여 별도의 작업 공정을 추가하지 않고서도 쉽고 편리하게 바로 음각선을 형성할 수 있다.


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    Title :

    DASH INSULATION FOR VEHICLE


    Additional title:

    자동차용 대시 인슐레이션


    Contributors:

    Publication date :

    2019-04-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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