Vehicle seat, and vehicle-seat production method

Patent metadata

Field	Value
Publication number	US-10377277-B2
Application number	US-201515539584-A
Country	US
Kind code	B2
Filing date	Nov 17, 2015
Priority date	Dec 25, 2014
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

The present invention provides a vehicle seat with little fine creases on a concave portion of a seat surface even the use of natural leather such as a cowhide as a skin material for the vehicle seat. A vehicle seat includes a seat cushion making a seated portion of the seat; a seat back disposed at a back side of the seat cushion and making a backrest portion of the seat; and a cover formed of a cloth including a skin material, an adhesive material, and a cushion material at a concave portion on at least one surface among the seat cushion and the seat back. The cover is formed into a concave shape by heat presswork with a mold having a curved surface.

First claim

The invention claimed is:

1. A vehicle seat comprising:
a seat cushion making a seated portion of the seat;
a seat back disposed at a back side of the seat cushion, the seat back making a backrest portion of the seat; and
a cover formed of a cloth comprising four layers including a skin material, an adhesive material, a wadding forming a cushion material, and an interlining forming a shape-holding material at a concave portion on at least one surface among the seat cushion and the seat back, wherein
the cover is formed into a concave shape by heat presswork with a mold having a curved surface, and
the wadding comprises a high-density urethane having a density of 20 g/dm 3 or more and 50 g/dm 3 or less.

2. The vehicle seat according to claim 1 ,
wherein the skin material is a real leather with a natural leather as a material.

3. The vehicle seat according to claim 2 ,
wherein the natural leather is a cowhide.

4. The vehicle seat according to
claim 1 , wherein the adhesive material is a hot-melt-based adhesive material heated and melted for bonding.

5. A vehicle-seat production method comprising:
(a) a step of at least stacking three layers including a skin material, an adhesive material, and a cushion material to produce a lamination cloth; and
(b) a step of performing presswork with a mold having a curved surface on a press surface while heating the lamination cloth to form a concave portion, wherein the lamination cloth is heated from the cushion material side by supplying vapor at around 100° C. through a plurality of through-holes provided in a lower die of the mold.

6. The vehicle-seat production method according to claim 5 ,
wherein the skin material is a real leather with a natural leather as a material.

7. The vehicle-seat production method according to claim 6 ,
wherein the natural leather is a cowhide.

8. The vehicle-seat production method according to claim 5 , wherein
the adhesive material is a hot-melt-based adhesive material heated and melted for bonding.

9. A vehicle-seat production method comprising:
(a) a step of at least stacking four layers including a skin material, a cushion material, an adhesive material, and an interlining to produce a lamination cloth; and
(b) a step of performing presswork with a mold having a curved surface on a press surface while heating the lamination cloth to form a concave portion, wherein the lamination cloth is heated from the cushion material side by supplying vapor at around 100° C. through a plurality of through-holes provided in a lower die of the mold.

10. The vehicle-seat production method according to claim 9 ,
wherein the skin material is a real leather with a natural leather as a material.

11. The vehicle-seat production method according to claim 9 , wherein
the adhesive material is a hot-melt-based adhesive material heated and melted for bonding.

12. The vehicle-seat production method according to claim 10 ,
wherein the natural leather is a cowhide.

Assignees

• Tachi S Co

Inventors

• Ishii Atsushi
• Mizuno Shinichi

Classifications

• B60N2/58

  Seat coverings · CPC title

• B60N2/5891

  characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for · CPC title

• B60N2/7017

  characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for · CPC title

• B68G7/00

  Making upholstery (manufacturing upholstered panels B68G13/00 {; from plastics B29D99/0092}; sewing-machines D05B) · CPC title

• B60N2/5875 Primary

  by adhesion, e.g. gluing · CPC title