Title:
ダクト部材およびその製造方法、ダクト
Document Type and Number:
Japanese Patent JP7372821
Kind Code:
B2
Abstract:
To improve sound absorbency of a duct member.SOLUTION: A duct member 20 is a molding of a laminate sheet 26 in which a foam layer 28 and a nonwoven fabric layer 30 are laminated. The duct member 20 includes: a duct body 22 formed into a groove shape in which the foam layer 28 is disposed inside a recess; and a flange part 24 formed integrally with the duct body 22. The duct body 22 is configured so that at least a body nonwoven fabric layer 30A is present in an incompressible state. The flange part 24 has an inside part which continues to at least the duct body 22 and is constituted of a compressed inside nonwoven fabric layer 30B.SELECTED DRAWING: Figure 1
Inventors:
Koji Nakamura
Application Number:
JP2019213037A
Publication Date:
November 01, 2023
Filing Date:
November 26, 2019
Export Citation:
Assignee:
Inoac Corporation
International Classes:
F24F13/02; B60H1/00; B60H1/26; B60H1/32; F16L9/21
Domestic Patent References:
| JP2017089914A | ||||
| JP2008296664A |
Attorney, Agent or Firm:
Motoi Eguchi
Hisanao Taga
Hisanao Taga