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    • 51. 发明专利
    • Porous sound absorbing structure
    • 多孔声吸收结构
    • JP2005338795A
    • 2005-12-08
    • JP2005117761
    • 2005-04-15
    • Kobe Steel Ltd株式会社神戸製鋼所
    • YAMAGUCHI ZENZOTANAKA TOSHIMITSUYAMAGIWA ICHIROUEDA HIROKIYOSHIKAWA EIICHIROSUZUKI TETSUOHINO MITSUO
    • B32B3/24G10K11/172
    • PROBLEM TO BE SOLVED: To suppress the lowering of sound absorbing performance in a wide frequency band.
      SOLUTION: The porous sound absorbing structure 10 comprises an external plate 1 and a closing plate 2. Also, an internal plate 3 is disposed between the external plate 1 and the closing plate 2 through air layers 4 and 5, and the external plate 1, the internal plate 3, and the closing plate 2 are disposed oppositely to each other. A large number of through holes 1a and 3a are formed in the external plate 1 and the internal plate 3. The internal plate 3 is set so that a plate thickness t2 and the diameter ϕ2 and opening rate β2 of the through holes 3a can have viscous effect on the air flowing in the through holes 3a. The opening rate β1 of the through holes 1a in the external plate 1 is set to more than 3% to ≤50%.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了抑制在宽频带中的吸音性能的降低。 解决方案:多孔吸音结构10包括外板1和封闭板2.而且,内板3通过空气层4和5设置在外板1和封闭板2之间,外部板 板1,内板3和封闭板2彼此相对设置。 在外板1和内板3中形成有大量的通孔1a和3a。内板3被设定为使得通孔3a的板厚度t2和直径φ2以及开口率β2可以具有粘性 对在通孔3a中流动的空气的影响。 外板1中的通孔1a的开口率β1设定为大于3%至≤50%。 版权所有(C)2006,JPO&NCIPI
    • 54. 发明专利
    • Lightweight floor structure
    • 轻型地板结构
    • JP2004060306A
    • 2004-02-26
    • JP2002221053
    • 2002-07-30
    • Kobe Steel Ltd株式会社神戸製鋼所
    • HANAWA YOJITSUGIBASHI KAZUKISUGIMOTO AKIOYAMAGUCHI ZENZO
    • E04B5/43E04B5/02
    • PROBLEM TO BE SOLVED: To provide a lightweight floor structure having sufficient rigidity/strength and being lightweight and further being excellent in workability/economic property.
      SOLUTION: For the floor structure 1, a structural plate 2 provided with a metallic folded plate 3 in which a wave shape formed of continuously connected ridge parts and bottom parts is extended in the longitudinal direction, a base plate 5 connected to the apexes of the metallic folded plate 3, and a bottom plate 4 connected to the bottom end of the metallic folded plate 3 is used. Both ends of the metallic folded plate 3 are bent toward the base plate 5 and connected to the base plate 5. The structural plate 2 is arranged with a distance d wider than that of the apexes of the folded plate 3 and the mutual structural plates 2 are connected by a connecting base plate 6.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供具有足够刚性/强度并且重量轻并且进一步优异的可加工性/经济性的轻质地板结构。 解决方案:对于地板结构1,设置有金属折板3的结构板2,其中由连续连接的脊部和底部形成的波形沿纵向延伸,基板5连接到 使用金属折板3的顶点和连接到金属折板3的底端的底板4。 金属折板3的两端朝向基板5弯曲并与基板5连接。结构板2配置成比折叠板3和相互结构板2的顶点宽的距离d 通过连接基板6连接。版权所有(C)2004,JPO
    • 59. 发明专利
    • DE112005003232T5
    • 2008-03-06
    • DE112005003232
    • 2005-12-15
    • KOBE STEEL LTD
    • YAMAGUCHI ZENZOYAMAGIWA ICHIROTANAKA TOSHIMITSUUEDA HIROKITSUBOTA KENSUKE
    • B60R13/08B23B5/24G10K11/172
    • A sound absorbing structure having excellent in sound absorbing performance, which is capable of achieving 0.4 or higher in the sound absorbing coefficient even in the case where a perforated panel is a thin plate such as aluminum foil within a range where a reduction in the weight of a vehicle body is not impaired and through holes have a large hole diameter in order to make the processing of providing a large number of through holes in the perforated panel. The sound absorbing structure 1 is the sound absorbing structure 1 for suppressing noise generated on a sound source side, which is equipped with: a perforated panel 2 having a large number of through holes 3 and a fiber material 4, which are provided so as to face the sound source side and provided so as to overlap with each other; and an air layer 5 provided behind the perforated panel 2, in which the density and the thickness of the fiber material 4 and the hole diameter and the aperture rate of the through holes 3 of the perforated panel 2 severally have a specific relationship.