Title:
防音構造
Document Type and Number:
Japanese Patent JP6570641
Kind Code:
B2
Abstract:
There is provided a laminated soundproof structure formed by laminating a single layer soundproof structure having one or more soundproof cells which are arranged in a two-dimensional plane and each of which includes a frame, a film, and an opening portion including a hole or includes a frame and a film. The single layer soundproof structure has a shielding peak frequency, which is determined by the opening portion of each of the soundproof cells and at which a transmission loss is maximized, on a lower frequency side than a first natural vibration frequency of the film of each of the soundproof cells. The conditions of at least one of the frame, the film, or the opening portion in the laminated one and other soundproof cells are different.
Inventors:
Shinya Shirata
Shogo Yamazoe
Shogo Yamazoe
Application Number:
JP2017536763A
Publication Date:
September 04, 2019
Filing Date:
August 16, 2016
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G10K11/172; E01F8/00; E04B1/86; G10K11/16
Domestic Patent References:
| JP2011039356A | ||||
| JP2008207763A | ||||
| JP10326097A |
Foreign References:
| US20110240402 |
Attorney, Agent or Firm:
Nozomi Watanabe
Haruko Sanwa
Hideaki Ito
Fumio Mitsuhashi
Haruko Sanwa
Hideaki Ito
Fumio Mitsuhashi