JPH0552618U - Soft floor heating mat - Google Patents

Abstract

(57) [Abstract] [Purpose] When the heating medium is circulated through the conduit, the elongation of the base sheet is reduced to suppress the lifting of the mat edge portion side. [Structure] A soft floor in which a piping groove 2 is provided on a base material sheet 1 which is a heat insulating layer, a conduit 5 for circulating a heat medium is laid in the piping groove 2, and a covering material 6 is adhered to the surface side thereof. In the heating mat, the base material sheet 1 has a static spring constant of 50 × 10 ^{6 to} 150 measured according to JIS A6322.
It is formed of a styrene resin foam of × 10 ⁶ N / m ³ , and it is of course possible to suppress the lifting of the mat edge portion side, and the base material sheet 1 is excellent in load resistance.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a soft floor heating mat in which thermal expansion of a base sheet due to heating during use is reduced, and a problem of floating on the edge of the mat can be eliminated.

[0002]

[Prior Art]

 A flexible soft floor heating mat that uses a heating fluid such as warm water as a heating medium is provided with piping grooves on a base sheet made of thermoplastic resin foam that serves as a heat insulating layer of the mat, and the heating medium is placed in the piping grooves. It is generally known that a conduit is laid and a coating material is applied to the surface side of the conduit, and the base sheet material is a cross-linked polyethylene foam having an expansion ratio of 10 to 40 times. It is used (refer to the public relations bulletin No. 63-5008).

[0003]

[Problems to be solved by the device]

 Soft floor heating mats that require flexibility must be made thin, and woven or non-woven fabrics or metal foils such as aluminum or copper are used for the surface coating. When the heating fluid is passed through the conduit, the conduit and the base sheet are heated and expand, while the coating material does not expand accordingly. Therefore, the stress generated by the thermal expansion is The base sheet concentrates on the weakest part, that is, the part where a plurality of conduits are gathered and curved together, and this causes the mat to float to the edge side.

Therefore, when a carpet is laid on a mat and used, the carpet is also lifted due to the above-mentioned lifting phenomenon, which is of course lacking in stability, and also makes the appearance unnatural. It will be. Also, when used by laying under the floor finishing material, there is concern about deformation of the finishing material. Then, there is a risk of tripping and injury due to the raised portion and the deformed portion, and measures to prevent it have been considered.

Incidentally, when the coating material is an aluminum foil, the coating material hardly expands even when the conduit and the base sheet are thermally expanded, so that the mat warps greatly, and even when the coating material is a non-woven fabric. , But not as much as aluminum foil, but partially lifted.

The present invention has been made in view of the above points, and an object thereof is to use a specific material for the base sheet to reduce the amount of elongation of the base sheet during heating and to reduce the amount of expansion. An object of the present invention is to provide a soft floor heating mat improved so as to suppress the lifting of the edge side.

[0007]

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the soft floor heating mat, which is a feature of the present invention, is provided with a pipe groove on a base sheet made of a thermoplastic resin foam, which is a heat insulating layer, and a conduit for circulating a heat medium in the pipe groove. In a soft floor heating mat on which a covering material is applied on the surface side thereof, the static sheet constant of the above base material sheet measured in accordance with JIS A6322 is 50 × 10 ^{6 to} 150 ×. It is formed from a styrene resin foam of 10 ⁶ N / m ³ .

[0008]

【Example】

Below, when described with reference to the accompanying drawings an embodiment of the present invention, the substrate sheet 1 is the static spring constant is 50 × 1 was measured according to JIS A6322 is a heat insulating layer ^{0 6 ~150} × 10 6 It is formed of N / m ³ styrene resin foam. As the styrene resin foam, foams such as polystyrene, polystyrene / polyethylene copolymer, styrene, α-methylstyrene / acrylonitrile copolymer and the like are used, and the static spring constant thereof is preferably 70 × 10 ^{6 to} 100. When it is × 10 ⁶ N / m ³ and less than 50 × 10 ⁶ N / m ³ , it is not possible to suppress the lift-up on the mat edge side, while when it exceeds 150 × 10 ⁶ N / m ³ , The rigidity is so high that the mat cannot be rolled up.

On the front surface side of the base material sheet 1, three to five pipe grooves 2 are provided in a meandering manner in parallel with each other. In the illustrated example, three pipe grooves 2 are provided. Therefore, the pipe grooves 2 are gathered at both end portions facing the edge 1a of the base sheet 1, and the gathering portion 3 is provided with a header 4. Then, conduits 5 for separately circulating a heat medium such as hot water are laid in each of the pipe grooves 2, and the start end and the end of the conduits 5 are connected to the inlet 4a and the return port 4b of the header 4, respectively. While being connected to each other, a covering material 6 is coated and adhered to the surface side of the base sheet 1 to form a soft floor heating mat.

The method for producing the present styrene resin foam, which is the material of the base sheet 1, will be described. Pre-expanded particles of styrene resin are filled in a mold, and this is steam-heated to be foamed. Styrene-based resin foam. Then, after slicing the foam in the plane direction parallel to the thickness, pressurizing it to compress it to a thickness of about 1/5 to 2/3, and then releasing the pressure to recover it, or The pressure is applied to the foam to compress it to a thickness of about 1/5 to 2/3, and then the pressure is released to recover it, and sliced in a plane direction parallel to the thickness. Those manufactured by adopting the former method are preferable.

The base sheet 1 has an expansion ratio of about 20 to 110 times and a thickness of 3 to 20 mm, and the conduit 5 has an outer diameter of 10 mm when the base sheet 1 has a thickness of 10 mm, for example. It is preferable to use a cross-linked body of low-density polyethylene having a diameter of 8 mm and an inner diameter of 5 mm, and as the covering material 6, a thermoplastic resin film and its foam, woven cloth, non-woven cloth or metal foil such as aluminum or copper is used. Used.

A soft floor heating mat according to the present invention (implemented using a polystyrene foam base sheet having a foaming ratio of 25, 60, and 80 before compression) and a base sheet having a foaming ratio of 20. The experimental results of the floating phenomenon on the edge side of the conventional soft floor heating mat using double the cross-linked polyethylene foam are shown in the table below. It was confirmed that it is excellent in that it can keep the value low.

[0013]

[Table 1]

[0014]

[Effect of the device]

The present invention is as described above, and the linear expansion coefficient of the present base sheet formed of a styrene resin foam having a static spring constant of 50 × 10 ^{6 to} 150 × 10 ⁶ N / m ³ is Since it is much smaller than that of the conventional base sheet made of, for example, a cross-linked polyethylene foam, the amount of elongation is small even when heated, and it is possible to suppress the floating phenomenon on the edge portion side of the mat. Therefore, it is free from the danger of tripping over the mat and is injured, which is effective in using the soft floor heating mat safely and comfortably, and it has a relatively large compressive strength, so it has excellent load bearing capacity. The practical value is extremely large.

[Brief description of drawings]

FIG. 1 is a schematic plan view in which a covering material is partially peeled off.

FIG. 2 is a sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 is a base sheet 2 is a pipe groove 5 is a conduit 6 is a covering material

Claims (1)

[Scope of utility model registration request] 1. A pipe groove is provided on a base sheet made of a thermoplastic resin foam, which is a heat insulating layer, and a conduit for circulating a heat medium is laid in the pipe groove, and a coating material is applied to the surface side of the pipe. In the soft floor heating mat used, the base sheet is JI.
The static spring constant measured according to SA 6322 is 50.
A soft floor heating mat formed of a styrene-based resin foam having a density of × 10 ^{6 to} 150 × 10 ⁶ N / m ³ .