Title:
SOUNDPROOF STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2018/151067
Kind Code:
A1
Abstract:
Provided is a soundproof structure which is compact, and exhibits high soundproofing performance in a low frequency band. The present invention is provided with at least one soundproof cell provided with: a framework having a hole; an elastic layer stacked on a frame of one open surface of the framework; and a membrane stacked on the elastic layer so as to cover the hole. When vibration is generated in the membrane, the effective displacement amount in a position where the amplitude is greatest in an area bonded to the elastic layer is 0.4-10% of the effective displacement amount of the membrane in a position where the amplitude is greatest.
Inventors:
YAMAZOE SHOGO (JP)
HAKUTA SHINYA (JP)
OHTSU AKIHIKO (JP)
SUGAWARA YOSHIHIRO (JP)
HAKUTA SHINYA (JP)
OHTSU AKIHIKO (JP)
SUGAWARA YOSHIHIRO (JP)
Application Number:
PCT/JP2018/004793
Publication Date:
August 23, 2018
Filing Date:
February 13, 2018
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G10K11/172; G10K11/16
Domestic Patent References:
| WO2016208580A1 | 2016-12-29 |
Foreign References:
| JP2009003089A | 2009-01-08 | |||
| JP2009288355A | 2009-12-10 | |||
| JP2010097137A | 2010-04-30 |
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
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