Title:
交通騒音を減衰させるための音響遮蔽デバイス
Document Type and Number:
Japanese Patent JP2012526221
Kind Code:
A
Abstract:
The invention relates to an acoustic screening device (1) for damping disturbing noise, especially such noise which arises from road traffic, rail traffic and the like, comprising a framework (2), preferably of concrete, and a noise absorber (3) arranged thereon, preferably fitted flat against the framework (2), and in which the noise absorber is configured as an exchangeable cassette (3) comprising a noise-absorbing mat (13). The invention is achieved by virtue of the fact that an air gap former (14) is arranged integrated in the cassette (3) behind the noise-absorbing mat (13) in such a way that an air gap (15) is formed between the noise-absorbing mat (13) and the framework (2), that the air gap former (14) is arranged to form a number of cells (16) or compartments between the noise-absorbing mat (13) and the framework (2), the cells (16) or the compartments being arranged to form substantially closed air volumes, and that the noise-absorbing mat (13) is arranged to be, at least to some degree, noise and air permeable.
Inventors:
Berne Jeve
Application Number:
JP2012509765A
Publication Date:
October 25, 2012
Filing Date:
May 04, 2010
Export Citation:
Assignee:
Seta-Block International Arb
International Classes:
E01B19/00; E01F8/00; E04B1/86
Domestic Patent References:
| JP2002250014A | 2002-09-06 | |||
| JP2003055919A | 2003-02-26 | |||
| JPH0596113U | 1993-12-27 | |||
| JPS63198099U | 1988-12-20 | |||
| JPH09296534A | 1997-11-18 | |||
| JPH07300821A | 1995-11-14 | |||
| JP2007507630A | 2007-03-29 | |||
| JPS5779608U | 1982-05-17 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro