Title:
断熱遮音性能を持つ車両内装用天井構造
Document Type and Number:
Japanese Patent JP6979561
Kind Code:
B2
Abstract:
To provide a ceiling structure for vehicle interior having excellent heat insulation property and sound insulation property.SOLUTION: A ceiling structure for vehicle interior includes a fiber structure layer. The fiber structure layer is arranged in an in-plane direction of a ceiling structure for vehicle interior. The fiber structure layer contains inelastic crimped short fibers made of a first synthetic resin and thermoadhesive composite short fibers made of a second synthetic resin in a mixed state. In the fiber structure layer, the inelastic crimped short fibers and the thermoadhesive composite short fibers are arranged in a state where each fiber length direction is in a thickness direction of the ceiling structure for vehicle interior. The thermoadhesive composite short fibers have a heat fusion component thereon, and are joined to the inelastic crimped short fibers via the heat fusion component. In the fiber structure layer, a ratio of the content of the thermoadhesive composite short fibers to the total content of the inelastic crimped short fibers and thermoadhesive composite short fibers is 10 mass% or more and 40 mass% or less. A basis weight of the fiber structure layer is 200 g/mor more and 800 g/mor less.SELECTED DRAWING: Figure 1
Inventors:
Hideki Agata
Shimizu Tsuneyoshi
Atsushi Suzuki
Shimizu Tsuneyoshi
Atsushi Suzuki
Application Number:
JP2017183780A
Publication Date:
December 15, 2021
Filing Date:
September 25, 2017
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
B60R13/02; B32B5/26; B60R13/08; D04H1/485
Domestic Patent References:
| JP2009287134A | ||||
| JP2002046545A | ||||
| JP2001207366A | ||||
| JP2008089620A | ||||
| JP2014000710A |
Attorney, Agent or Firm:
Janggi Motonori
Hiroshi Suzuki
Hiroshi Suzuki