To provide a sound absorbing panel in which improvement in sound absorbing performance and securing of sufficient rigidity can be achieved.SOLUTION: A sound absorbing panel 1 comprises: a surface plate 2 which has a plurality of hole parts 2a; a back surface plate 3 which is arranged at a constant interval with respect to the surface plate 2; a plurality of ribs 4 which are arranged at the constant interval between the surface plate 2 and the back surface plate 3; and a plurality of sound absorbing materials 5 which are arranged between the surface plate 2 and the back surface plate 3 and between the ribs 4. The back surface plate 3 is constituted by a corrugated plate 21 in which a first projecting part 22 facing a surface side and a second projecting part 23 facing a back surface side are alternately arranged. The sound absorbing material 5 and the first projection part 22 are connected with each other. An air layer E is formed between the sound absorbing material 5 and the second projection part 23 of the corrugated plate 21.SELECTED DRAWING: Figure 2

    【課題】吸音性能の向上及び十分な剛性の確保が図られる吸音パネルを提供する。【解決手段】吸音パネル1は、複数の孔部2aを有する表面板2と、表面板2と一定の間隔をもって配置された裏面板3と、表面板2と裏面板3との間に一定の間隔をもって配置された複数のリブ4と、表面板2と裏面板3との間でリブ4間に配置された複数の吸音材5と、を備え、裏面板3は、表面側を向く第1の凸部22と裏面側を向く第2の凸部23とが交互に並ぶ波板21によって構成され、吸音材5と第1の凸部22とが互いに結合され、吸音材5と波板21の第2の凸部23との間に空気層Eが形成されている。【選択図】図2


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    Title :

    SOUND ABSORBING PANEL


    Additional title:

    吸音パネル


    Contributors:

    Publication date :

    2024-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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