- 专利标题: Sound absorbing structure
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申请号: US09946599申请日: 2001-09-06
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公开(公告)号: US06601673B2公开(公告)日: 2003-08-05
- 发明人: Atsushi Murakami , Takumi Arisawa , Motonori Kondoh , Kazuo Nishimoto , Takahiro Niwa
- 申请人: Atsushi Murakami , Takumi Arisawa , Motonori Kondoh , Kazuo Nishimoto , Takahiro Niwa
- 优先权: JPP2000-270101 20000906
- 主分类号: E04B182
- IPC分类号: E04B182
摘要:
A sound absorbing structure including a film with through holes formed is laminated on a porous member having communicating voids on the side facing a sound source. At least one of the through holes has an opening area of 19 mm2 or more, and the total of the opening area accounts for 1 to 70% with respect to the area of a film formation surface on the porous member. A soundproof cover including the sound absorbing structure disposed on the inner surface of a cover main body are also provided.
公开/授权文献
- US20020053484A1 Sound absorbing structure 公开/授权日:2002-05-09
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