Title:
Sound permeability member
Document Type and Number:
Japanese Patent JP6179365
Kind Code:
B2
Abstract:
To obtain a sound-transmitting member having a wide sound-transmitting band in a high frequency region. A planar sound-transmitting member (10) having sound-transmitting properties includes two skin layers (102A) and (102B), N + 1 core layers (106A) and (106B), and N intermediate layers (104) (N = 1), in which the core layer and the intermediate layer being alternately stacked between the skin layers. The skin layers (102A) and (102B) and the intermediate layer (104) are formed of carbon fiber reinforced plastics (CFRP), which is a material having a higher elastic modulus than the core layers (106A) and (106B) formed of rubber.
Inventors:
Masato Tadokoro
Yusuke Tanaka
Yusuke Tanaka
Application Number:
JP2013237556A
Publication Date:
August 16, 2017
Filing Date:
November 18, 2013
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
H04R1/44; B32B7/022; B63B49/00; G01S7/521
Domestic Patent References:
| JP4050683A | ||||
| JP2012154791A | ||||
| JP2254387A | ||||
| JP61014391U | ||||
| JP1126578A |
Other References:
中西 俊之 Toshiyuki Nakanishi,高分子材料を用いた3層構造低損失音響窓 An acoustic window with low transmission loss made of three polymer plastic layers,日本音響学会誌 第46巻 第3号,日本,社団法人日本音響学会,1999年 3月 1日,第46巻,p.205-211
Attorney, Agent or Firm:
Shigeru Noda