Title:
SOUNDPROOFING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/155927
Kind Code:
A1
Abstract:
Provided is a soundproofing structure that is small and light and that is capable of simultaneously muffling, with a plurality of noise frequencies, high frequency noise which is specific to a sound source. The soundproofing structure according to the present invention includes a plurality of film-shaped members stacked in a mutually-spaced manner; a support that is formed of a rigid body and is to support the plurality of film-shaped members in such a manner that each of the film-shaped members can vibrate; an inter-film space sandwiched between two adjacent film-shaped members among the plurality of film-shaped members; and a rear space defined between a film-shaped member located at one support end in the support among the plurality of film-shaped members and the one support end. The soundproofing structure according to the present invention absorbs sound by film-vibration of each of the plurality of film-shaped members in a state where one end of the support is closed.
Inventors:
HAKUTA SHINYA (JP)
YAMAZOE SHOGO (JP)
YAMAZOE SHOGO (JP)
Application Number:
PCT/JP2019/002755
Publication Date:
August 15, 2019
Filing Date:
January 28, 2019
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G10K11/16; G10K11/172
Foreign References:
| JP2009293252A | 2009-12-17 | |||
| JP2011039356A | 2011-02-24 | |||
| JP2005134653A | 2005-05-26 | |||
| JPS4832245B1 | 1973-10-04 | |||
| JPS6298398A | 1987-05-07 |
Other References:
J. ACOUSTIC. SOC. JPN., vol. 11, no. 1, 1990, pages 19 - 24
See also references of EP 3751557A4
See also references of EP 3751557A4
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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