Title:
遮音ルーバー
Document Type and Number:
Japanese Patent JP6936904
Kind Code:
B2
Abstract:
To provide a sound insulation louver that has a simple structure, can reduce costs required for manufacturing, transport, and increased construction man-hours, and can ensure sufficient sound insulation performance.SOLUTION: In a sound insulation louver 1 according to the present invention, a plurality of louver blade members 10 are continuously arranged when viewed in cross section with respect to the longitudinal direction, the louver blade members each having a first straight line part 31, a second straight line part 32 parallel to the first straight line part 31, and a parabolic part 40 extending from the second straight line part 32.SELECTED DRAWING: Figure 4
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Inventors:
Takashi Masuda
Hiroyasu Nishi
Toru Miyajima
Hiroyasu Nishi
Toru Miyajima
Application Number:
JP2020119177A
Publication Date:
September 22, 2021
Filing Date:
July 10, 2020
Export Citation:
Assignee:
Shimizu Construction Co., Ltd.
International Classes:
G10K11/16; F02B63/04; F02B77/13
Domestic Patent References:
| JP2000257029A | ||||
| JP2008144423A |
Attorney, Agent or Firm:
Teiji Tanaka
Takashi Koyama
Masataka Aiba
Takehiko Katayose
Takashi Koyama
Masataka Aiba
Takehiko Katayose