Title:
防音構造
Document Type and Number:
Japanese Patent JP7105073
Kind Code:
B2
Abstract:
In a soundproof member 10 including a polyurethane foam 11 and disposed apart from an engine E on a vehicle interior side of a dash panel 50 partitioning a space into an engine room having the engine E as a sound source and a vehicle interior, the polyurethane foam 11 has a surface layer 12 on at least a part of the surface thereof, a one side surface of the polyurethane foam 11 directly facing the vehicle interior side of the dash panel 50 has at least a surface layer 12A in an open cell state or a core, and a surface layer 12B of the other side surface opposite to the one side surface is a surface layer in a closed cell state.
Inventors:
Yosuke Hasegawa
Nukiya Kojima
Nukiya Kojima
Application Number:
JP2018045372A
Publication Date:
July 22, 2022
Filing Date:
March 13, 2018
Export Citation:
Assignee:
Inoac Corporation
International Classes:
G10K11/162; B29C33/62; B29C39/02; B29C39/22; B29C44/00; B29C44/02; B29C44/34; B32B5/18; B32B27/40; G10K11/16
Domestic Patent References:
| JP2001138771A | ||||
| JP2013246182A | ||||
| JP2002213684A | ||||
| JP2005350533A | ||||
| JP2005043826A | ||||
| JP10254453A |
Attorney, Agent or Firm:
Yoshio Rikio
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