JPH0510535A - Planar form warmer - Google Patents

Abstract

PURPOSE:To provide an inexpensive planar form warmer which has no relief of a heater wire on surface cloth and improves facility without increasing the number of parts. CONSTITUTION:Planar form warming tool comprises a surface cloth material 1 having a high pile part 8 and a low pile part 9, an adhesion layer 2, a heat generating wire 3, and a heat insulating material 4. The low pile part 9 of the surface cloth material 1 is arranged at least on the heat generating wire 3, and since the low pile part 9 is covered with the long fibers of the high pipe 8, the relief of the heat generating wire on surface cloth is prevented from being conspicuous.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface cloth for a surface warming tool such as an electric carpet.

[0002]

2. Description of the Related Art Heretofore, a surface heating tool of this type has been disclosed in Jitsuko Sho
The structure shown in Japanese Patent No. -12108 was common. The configuration will be described below with reference to FIGS. 2 and 3.

FIG. 2 shows a sheet heating device in which a heating wire 3 is arranged between a surface cloth material 1 and a heat insulating material 4 and is integrated by an adhesive layer 2.
In such a configuration, since the heating wire 3 does not sink sufficiently into the heat insulating material 4 and pushes up the surface cloth material 1 linearly, even if an attempt is made to finish the surface cloth flat, the wiring pattern shape of the heating wire 3 The pattern is raised on the surface and remarkably deteriorates the appearance. Also,
The linearly pushed up portion receives the stepping force more strongly than the other portions, so that there is also a problem that the surface cloth material 1 is quickly worn.

To address the above-mentioned problems, FIG. 3 shows a surface cloth 1, an adhesive layer 2, a heating wire 3, a first felt layer 5 mixed with low-temperature melting fibers, a foam layer 6 such as urethane foam, and a first layer. It is a planar warming tool in which a second felt layer 7 that melts at a temperature higher than that of the felt layer is integrated by hot pressing from above and below. During the hot pressing, the adhesive material 2 and the entire first felt layer 5 of the lower temperature melting fiber are softened, so that the heating wire 3 can sink into the first felt layer, and the heating wire 3 on the heating wire 3 Table cloth 1
To prevent floating.

[0005]

In such a conventional sheet heating device, the heating wire 3 pushes the surface cloth material 1 linearly to impair the appearance remarkably, and the heating wire 3 does not adhere to the surface cloth. In order to prevent the protrusion, in addition to the heat insulating material 4, it is necessary to use the first felt layer 5 and the cushion material mixed with the low-temperature melting fiber, so that the number of parts is increased, and the material cost is increased. It was time-consuming.

An object of the present invention is to solve the above problems, and an object thereof is to provide a planar heating tool which is easy to use and has a good appearance without increasing the number of constituent parts.

[0007]

To achieve the above object, the present invention has a high pile portion of long fibers and a low pile portion of short fibers in a surface cloth material, and the low pile portion is provided along a heating line. The circumference of the low pile portion arranged linearly is constituted by the high pile portion.

[0008]

According to the present invention, since the low pile portion is linearly provided along the heating wire and the periphery of the low pile portion is constituted by the high pile portion, the long fibers of the high pile portion cover the low pile portion. Therefore, the floating of the outer cloth on the heating line can be made inconspicuous.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG.
A description will be given with reference to (a) and FIG. 1 (b). FIG. 1 (a) shows a cross section of a planar heating tool of the present invention, which is constructed by laminating a surface cloth material 1, an adhesive layer 2, a heating wire 3 and a heat insulating material 4 in order.

The surface cloth material 1 comprises a high pile portion 8 of long fibers and a low pile portion 9 of short fibers. As shown in FIG. 1 (b), there is a linear low pile portion 9 along the heating wire 3.
The periphery of the linear low pile portion 9 is composed of a high pile portion 8. Further, FIG. 1B is an example in which a low pile portion is provided on a portion other than the heating wire 3 and the low pile portion forms a lattice pattern.

As described above, according to the sheet heating device of the embodiment of the present invention, the linear low pile portion 9 is provided along the heating wire 3, and the high pile portion 8 is provided around the linear low pile portion 9. With this configuration, the floating on the heating wire 3 of the low pile portion is hidden by the surrounding high pile portion 8, so that the floating on the surface cloth material 1 can be made inconspicuous.

[0012]

As is apparent from the above embodiments, according to the present invention, the low pile portion is linearly provided on the surface cloth material along the heating line, and the high pile portion is arranged around the low pile portion. The high pile part hides the heating wires from the outer cover, making them inconspicuous. During use, the high pile part covers the low pile part and wear of the high pile part can reduce wear of the low pile part on the heating wire, so it does not reduce the number of parts and it has a good-looking surface. A state-of-the-art heating tool can be provided.

[Brief description of drawings]

FIG. 1 (a) is a cross-sectional view of a sheet heating tool according to an embodiment of the present invention. FIG. 1 (b) is a plan view of a sheet heating tool according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a conventional sheet heating device.

FIG. 3 is a cross-sectional view of another conventional planar heating tool.

[Explanation of symbols]

1 Surface cloth material 2 Adhesive layer 3 Exothermic wire 4 Heat insulating material 5 First felt layer mixed with low temperature melting fiber 6 Foam layer such as urethane foam 7 Second felt that melts at a higher temperature than the first felt layer Layer 8 High pile part of long fiber 9 Low pile part of short fiber

Claims (1)

Claim: What is claimed is: 1. An adhesive layer and a heating wire are arranged between a surface cloth material, a heat insulating material and the heat insulating material, and the adhesive layer and the heating wire are interposed between the surface cloth material, the heating wire and the heat insulating material. In one integrated with an adhesive layer, the surface cloth material has a high pile portion of long fibers and a low pile portion of short fibers, and the low pile portion is provided along the heating line, and the low pile portion is arranged in a linear shape. The area around is a sheet-shaped warming tool composed of the high pile part.