Seat heater and seat cover with same

Patent metadata

Field	Value
Publication number	US-9457701-B2
Application number	US-201314648714-A
Country	US
Kind code	B2
Filing date	Dec 3, 2013
Priority date	Dec 11, 2012
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A seat heater includes: a base material; and a heater wire disposed on the base material. The base material has a fold-back portion projecting from an edge of the base material where a cutout portion is formed. The heater wire is disposed on the fold-back portion. In a state where the fold-back portion is folded back toward a base material side, a proximal portion of the fold-back portion is positioned inside the edge of the base material. With such a configuration, the seat heater whose temperature elevation performance is not deteriorated can be realized.

First claim

The invention claimed is:

1. A seat heater comprising:
a base material; and
a heater wire disposed on the base material,
wherein the base material has a U-shaped fold-back portion projecting from an edge of the base material where a cutout portion is formed,
the heater wire is disposed on the U-shaped fold-back portion, and
in a state where the fold-back portion is folded back toward a base material side, the heater wire disposed on the fold-back portion is folded with the fold-back portion and a proximal portion of the cutout portion of the fold-back portion is positioned inside the edge of the base material.

2. The seat heater according to claim 1 , wherein the base material has a plurality of the fold-back portions at the edge of the base material, and the fold-back portions are connected to each other with a connecting portion.

3. The seat heater according to claim 1 , wherein the heater wire is disposed obliquely at least in the vicinity of the fold-back portion so as to prevent the heater wire from being overlapped when folded.

4. A seat cover configured by laminating at least a skin, a wadding and the seat heater according to claim 1 , then, by integrally forming the skin, the wadding and the seat heater by quilting.

5. The seat cover according to claim 4 , wherein the wadding is configured of a first wadding and a second wadding, and the seat heater is disposed between the first wadding and the second wadding.

6. The seat cover according to claim 4 , wherein the seat heater is disposed between the skin and the wadding.

7. A seat heater comprising:
a base material; and
a heater wire disposed on the base material,
wherein the base material has a U-shaped fold-back portion formed inside an edge of the base material,
the heater wire is disposed on the U-shaped fold-back portion, and
in a state where the fold-back portion is folded back toward the edge side of the base material, the heater wire disposed on the fold-back portion is folded with the fold-back portion and a distal end portion of the fold-back portion is positioned outside the edge of the base material.

8. The seat heater according to claim 7 , wherein the heater wire is disposed obliquely at least in the vicinity of the fold-back portion so as to prevent the heater wire from being overlapped when folded.

9. A seat cover configured by laminating at least a skin, a wadding and the seat heater according to claim 7 , then, by integrally forming the skin, the wadding and the seat heater by quilting.

10. The seat cover according to claim 9 , wherein the wadding is configured of a first wadding and a second wadding, and the seat heater is disposed between the first wadding and the second wadding.

11. The seat cover according to claim 9 , wherein the seat heater is disposed between the skin and the wadding.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Yoshimoto Koji
• Hyoudou Takaaki
• Fujiwara Yoshimitsu
• Nagayama Kazumi
• Hanada Masaki

Classifications

• H05B3/0014

  Devices wherein the heating current flows through particular resistances · CPC title

• H05B3/342

  heaters used in textiles · CPC title

• B60N2/5891

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

• H05B2203/029

  Heaters specially adapted for seat warmers · CPC title

• H05B2203/014

  Heaters using resistive wires or cables not provided for in H05B3/54 · CPC title