Title:
吸音構造
Document Type and Number:
Japanese Patent JP7227021
Kind Code:
B2
Abstract:
To provide a sound absorption structure capable of exhibiting sound absorption effect even in a limited space.SOLUTION: A sound absorption structure 100 comprises: a fine porous sound absorption board 10 which is arranged apart from a floor plate (wall face) 21a of a vehicle body 21 of a railway vehicle 20; and an electric wire tray 23, piping 24, and a duct 25 which are arranged in a space (back air layer) between the floor plate 21a and the fine porous sound absorption board 10.SELECTED DRAWING: Figure 1
Inventors:
Mariko Akutsu
Yusuke Wakabayashi
Yamagoku Ichiro
Sekiguchi Osamu
Yusuke Wakabayashi
Yamagoku Ichiro
Sekiguchi Osamu
Application Number:
JP2019018438A
Publication Date:
February 21, 2023
Filing Date:
February 05, 2019
Export Citation:
Assignee:
East Japan Railway Company
KABUSHIKI KAISHA KOBE SEIKO SHO
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
G10K11/16; B61D17/10; B61D17/12; B61D49/00; G10K11/168; G10K11/172
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Attorney, Agent or Firm:
Koyo International Patent Office