Title:
SOUNDPROOFING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2017/033798
Kind Code:
A1
Abstract:
Provided is a laminated soundproofing structure formed by laminating single layer soundproofing structures which include at least one soundproofing cell which is disposed on a 2D plane and which comprises a frame, a film, and an opening having a hole, or a frame and a film. The single layer soundproofing structure has a shielding peak frequency, which is determined according to the opening of the soundproofing cell and which also maximizes the transmission loss, on a side having a lower frequency than the first natural oscillation frequency of the film of the soundproofing cell. The soundproofing cells of the single layer soundproofing structures are mutually laminated. One and another soundproofing cell that are laminated have at least one mutually different condition, the conditions being the frame, film, or opening. Due to this configuration, provided is a soundproofing structure for which: the structure is light and thin; there is no dependence on the position or shape of the holes; the robustness as a sound blocking material is high; there is stability; it is possible to block multiple sounds and widen the band of sound blocking; and it is possible to obtain shielding frequencies as intended.
Inventors:
HAKUTA SHINYA (JP)
YAMAZOE SHOGO (JP)
YAMAZOE SHOGO (JP)
Application Number:
PCT/JP2016/073906
Publication Date:
March 02, 2017
Filing Date:
August 16, 2016
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G10K11/16
Foreign References:
| JP2011039356A | 2011-02-24 | |||
| US20110240402A1 | 2011-10-06 | |||
| JP2008207763A | 2008-09-11 | |||
| JPH10326097A | 1998-12-08 |
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
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