An objective of the present invention is to provide an automotive luggage board having sound insulation performance, in which a honeycomb structure is made of paper and polyurethane sheets are added on both sides of the honeycomb structure to manufacture a luggage board, such that the honeycomb structure provides light and sufficient structural rigidity and sound insulation effects, and the polyurethane sheets are formed on both sides of the honeycomb structure to further enhance the sound insulation effects. In addition, another objective of the present invention is to provide an automotive luggage board in which since at least one of the two polyurethane sheets has a plurality of perforations, an unperforated polyurethane sheet is used to shield external noise coming from the outside of a vehicle, and a perforated polyurethane sheet and the honeycomb structure are used to absorb sound to increase the sound insulation performance. Particularly, the present invention has another objective to provide an automotive luggage board having sound insulation performance, in which the number of perforations, a distance between the perforations and the diameter of the perforations allow the elimination of a frequency region of other specific bands entering a trunk from the outside of the trunk for each vehicle type to achieve optimum noise removal performance depending on the vehicle type.

    본 발명은 종이로 허니컴 구조물을 제작하고 그 양쪽 면에 폴리우레탄 시트를 추가 구성하는 것을 포함하여 러기지 보드를 제작하므로, 허니컴 구조물을 통해 가벼우면서도 충분한 구조적 강성을 얻을 뿐만 아니라 흡음 효과도 얻을 수 있고, 게다가 이 허니컴 구조물 양면에 각각 폴리우레탄 시트를 구성하여 흡차음 효과를 더욱 높일 수 있게 흡차음 성능을 가진 자동차용 러기지 보드를 제공하는 데 그 목적이 있다. 그리고, 본 발명은 두 개의 폴리우레탄 시트 중에서 적어도 하나에 여러 개의 천공을 형성하므로, 천공되지 않은 폴리우레탄 시트로 자동차 외부에서 들어오는 외부 소음을 차음하고, 천공한 폴리우레탄 시트와 허니컴 구조물을 통해 흡음하게 하여 흡차음 성능을 높일 수 있게 한 자동차용 러기지 보드를 제공하는 데 다른 목적이 있다. 특히, 본 발명은 이러한 천공 개수와 그 사이 간격 그리고 천공의 지름을 통해 차종마다 트렁크 외부에서 트렁크로 들어온 다른 특정 대역의 주파수 영역을 제거할 수 있게 하여 차종에 따라 최적의 소음 개선 성능을 얻을 수 있게 한 흡차음 성능을 가진 자동차용 러기지 보드를 제공하는 데 또 다른 목적이 있다.


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    Title :

    LUGGAGE BOARD HAVING SOUND INSULATION FOR VEHICLE


    Additional title:

    흡차음 성능을 가진 자동차용 러기지 보드


    Contributors:
    KWON MIN HO (author) / MA BYUNG JONG (author)

    Publication date :

    2017-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B31D MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C , Herstellen von Gegenständen aus Papier, Pappe oder aus Material, das in gleicher Weise wie Papier bearbeitet wird, soweit nicht in den Unterklassen B31B oder B31C vorgesehen / B62D MOTOR VEHICLES , Motorfahrzeuge



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