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Title:
SOUNDPROOF PANEL
Document Type and Number:
WIPO Patent Application WO/2018/179485
Kind Code:
A1
Abstract:
Provided is a soundproof panel which does not bring about an increase in mass and costs and can exhibit a favorable sound absorbing property from a low-frequency band to a high-frequency band. This soundproof panel is provided with: a sound source-side plate-like body disposed on a side close to the sound source; and an outer-side plate-like body disposed on a side far from the sound source with respect to the sound source-side plate-like body, wherein a first air layer is formed between the sound source-side plate-like body and the outer-side plate-like body, and the sound source-side plate-like body comprises a perforated plate. The sound source-side surface or the first air layer-side surface of the sound source-side plate-like body, or both of these surfaces are further provided with a porous sound-absorbing material layer comprising a porous sound-absorbing material.

Inventors:
SASE TOSHITSUGU (JP)
OGIKUBO YOSHINORI (JP)
HORISAWA YOSHIAKI (JP)
TANAKA MASAYUKI (JP)
Application Number:
PCT/JP2017/031538
Publication Date:
October 04, 2018
Filing Date:
September 01, 2017
Export Citation:
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Assignee:
SK TECH CO LTD (JP)
International Classes:
G10K11/16; E04B1/86; G10K11/168; G10K11/172
Foreign References:
JP2012013912A2012-01-19
JP2002123259A2002-04-26
JPH1165572A1999-03-09
JPS63198099U1988-12-20
JP2009062977A2009-03-26
JPS62187727U1987-11-30
JPH0371005U1991-07-17
JP2004126487A2004-04-22
Attorney, Agent or Firm:
WAKUI Kenichi et al. (JP)
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