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Fabric material

a technology of fabric and material, applied in the field of fabric materials, can solve problems such as wire breaking, and achieve the effects of reducing flexing deformation, high elasticity, and high degree of elongation

Inactive Publication Date: 2012-09-06
TOYOTA BOSHOKU KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about a fabric material used for car seats that has a conductive sheath yarn to provide heating. The sheath yarn is designed to prevent it from breaking when flexed. This is achieved by using a twisted structure with multiple strands of yarn arranged close-packed together. The fabric material also includes a second yarn that is a highly elastic wire, which improves its flex resistance and tensile strength. Overall, the invention ensures that the sheath yarn remains durable and safe during use.

Problems solved by technology

At this time, a heating wire may be repeatedly flexed such that stress concentrates at the sheath yarn (a single metal wire), resulting in the wire breaking.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

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Embodiment Construction

[0028]Hereinafter, example embodiments of the invention will be described with reference to FIGS. 1 to 10. In FIG. 1, reference character F denotes a forward direction with respect to the members, reference character B denotes a backward or rearward direction with respect to the members, reference character UP denotes an upward direction with respect to the members, and reference character DW denotes a downward direction with respect to the members. In the schematic diagrams of sheath yarn in FIGS. 9A and 9B, the sheath yarn is shown aligned, not twisted, to facilitate understanding. A vehicle seat 2 in FIG. 1 has a seat cushion 4, a seat back 6, and a headrest 8. Each of these members has a cushion (4P, 6P; and 8P) that forms the outer shape of the seat, and a cover (4S, 6S, and 8S) that covers the cushion. Polyurethane foam (having a density of 10 kg / m3 to 60 kg / m3) may be used for a typical cushion, for example.

[0029]In this example embodiment, fabric material 10 serves as a heat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

Fabric material has nonconductive core yarn, and conductive sheath yarn arranged in a spiral pattern around the core yarn. The sheath yarn includes conductive first yarn, and second yarn. At least five strands of the first yarn are arranged close-packed together while being twisted around the second yarn.

Description

INCORPORATION BY REFERENCE[0001]The disclosure of Japanese Patent Application No. 2011-047724 filed on Mar. 4, 2011 including the specification, drawings and abstract is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to fabric material provided with insulating core yarn, and conductive sheath yarn (wire arranged in a spiral pattern around the core yarn).[0004]2. Description of Related Art[0005]Japanese Patent Application Publication No. 7-161456 (7-161456) describes an example of such fabric material. This fabric material has a heating wire (core yarn and conductive sheath yarn). The core yarn is wire made of polyester and cotton, and the sheath yarn is wire made from metal wire such as stainless steel. With the related art, the heating wire is formed by arranging one strand of the sheath yarn in a helix pattern around the core yarn. Next, the fabric material is formed by weaving the heating yarn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D02G3/44
CPCD02G3/441D02G3/12Y10T428/249922
Inventor HONMA, YOSHITERUKUNISADA, HIDEAKIAKAIKE, FUMITOSHI
Owner TOYOTA BOSHOKU KK