To provide means that enables high sound absorption performance to be achieved in a wide frequency band including a frequency range of 300 Hz or under.SOLUTION: A sound absorption structure includes: a grid plate made of resin or metal; a porous body sheet stacked on the grid plate and fixed to the grid plate in a portion opposed to at least some of lattice points of the grid plate; and a base material opposed to the grid plate with the porous body sheet therebetween.SELECTED DRAWING: Figure 1

    【課題】300Hz以下の周波数域を含む広い周波数帯域で高い吸音性能を発揮することを可能とする手段を提供する。【解決手段】吸音構造は、樹脂または金属からなる格子板と、前記格子板に積層されるとともに、前記格子板の格子点の少なくとも一部に対向する部位で前記格子板に固定された多孔質体シートと、前記多孔質体シートを間にして前記格子板に対向する基材とを備える。【選択図】図1


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    Title :

    SOUND ABSORPTION STRUCTURE, INTERIOR COMPONENT FOR VEHICLE, AND VEHICLE


    Additional title:

    吸音構造、自動車用内装部品および自動車


    Contributors:
    IWATA TAKURO (author) / MIURA SUSUMU (author)

    Publication date :

    2023-03-09


    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 / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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