公开(公告)号：EP1657708A1

公开(公告)日：2006-05-17

申请号：EP04735100.2

申请日：2004-05-27

申请人： Rion Co., Ltd. ,  Kobayashi Institute of Physical Research

发明人： KODAMA, Hidekazu, ,  DATE, Munehiro ,  MOKRY, Pavel ,  KIMURA, Kazunori ,  OKUBO, Tomonao ,  FUKADA, Eiichi

IPC分类号： G10K11/16

CPC分类号： G10K11/16 ,  G10K11/172

摘要： The invention provides a sound insulation/absorption structure, a sound insulation/absorption device, and a structure having these applied thereto and a member constituting the same, which are capable of insulating or absorbing sound by stiffness control. The sound insulation/absorption structure comprises a film member (1), such as a polymer film or metal foil, and a frame body (2) having at least one annular opening, the film member (1) being fixed to the frame body (2), the section of the film member (1) surrounded by the frame body (2) being of a curved shape such as a dome, wherein the resonance frequency of the in-plane stretching of this curved shape is set at a frequency equal to or higher than the audible frequency band, so as to insulate or absorb sound by the elastic force of the film. The film member (1) may be replaced by an acrylic, polyethylene terephthalate or other plastic plate, an aluminum or other metal plate, or a veneer or other plate member, molded into a curved shape, such as a dome, a semi-cylinder and a cone.

摘要翻译： 本发明提供一种隔音/吸收结构，隔音/吸收装置，以及具有这些结构的隔音/吸收装置和构成该隔音/吸收装置的结构，并且能够通过刚度控制来隔离或吸收声音。 隔音/吸收结构包括诸如聚合物膜或金属箔的膜构件（1）和具有至少一个环形开口的框体（2），所述膜构件（1）固定到框架体（ 如图2所示，由框体（2）包围的膜构件（1）的截面为圆弧状的弯曲形状，其中该弯曲形状的面内拉伸的共振频率被设定为等于 达到或高于可听频带，以便通过胶片的弹力来隔离或吸收声音。 膜构件（1）可以由丙烯酸，聚对苯二甲酸乙二醇酯或其它塑料板，铝或其他金属板或单板或其它板构件代替，其被模制成弯曲形状，例如圆顶，半圆柱体 和锥体。