Title:
自動車の防音トリム部品
Document Type and Number:
Japanese Patent JP5791738
Kind Code:
B2
Abstract:
A sound attenuating trim part, including at least one insulating area with an acoustic mass-spring characteristics having at least a mass layer and a decoupling layer adjacent to the mass layer, whereby the mass layer consists of a porous fibrous layer and a barrier layer, with the barrier layer being located between the porous fibrous layer and the decoupling layer and all layers are laminated together, and whereby the porous fibrous layer at least in the insulating area has adjusted dynamic Young's modulus (Pa) such that the radiation frequency of is at least 3000 (Hz).
Inventors:
Claudio Bertolini
Claudio Castagnetti
Marco Zeppe
Claudio Castagnetti
Marco Zeppe
Application Number:
JP2013556975A
Publication Date:
October 07, 2015
Filing Date:
March 09, 2011
Export Citation:
Assignee:
Autoneum Management AG
International Classes:
G10K11/162; B32B5/00; B32B7/02; B60R13/08
Domestic Patent References:
| JP2005227747A | ||||
| JP2001347900A |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Takuya Kuno
Takuya Kuno
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