Title:
防音構造
Document Type and Number:
Japanese Patent JP6510653
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. 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 soundproof cells of the single layer soundproof structures are laminated with a distance therebetween, and at least some of the laminated soundproof cells have the same conditions of the frame, the film, and the opening portion.
Inventors:
Shinya Shirata
Shogo Yamazoe
Shogo Yamazoe
Application Number:
JP2017536766A
Publication Date:
May 08, 2019
Filing Date:
August 16, 2016
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G10K11/16; E01F8/00; E04B1/86; G10K11/172
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