JP2995551B2 - Heating floor material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a heating floor material.

[0002]

2. Description of the Related Art Conventionally, a continuous groove is formed in a meandering manner on the surface of a plate material such as a synthetic resin foam plate or a wooden plate, and a linear or planar heating element and a sensor are embedded in the groove. Further, a heat-generating floor material having a heat equalizing plate and a floor plate laminated on the surface thereof is known.

However, it is troublesome to form a groove on the surface of the plate material and further dispose the heating element along the groove, and the depth of the groove is cut in accordance with the thickness of the heating element. It was difficult to form. If the groove is too deep, a gap is formed between the heating element embedded in the groove and the heat equalizing plate, and the heat of the heating element is not efficiently transmitted to the heat equalizing plate. Conversely, if the groove is too shallow. Since the heat equalizing plates are laminated in a state in which the heating element buried in the concave groove protrudes from the surface of the plate material, the load from the floor material surface is concentrated on the heating element and the heating element may be damaged. Become.

In order to solve these problems, in a heat-producing flooring material proposed in Utility Model Registration No. 2521677, an inner space is formed by upper and lower wooden plate-like members and wooden bar members on both side edges thereof. , A heating element on the upper side, a linear heating element sandwiched by a flexible metal sheet on the lower side are arranged in the internal space,
The synthetic resin is foamed and solidified in the space between the lower woody plate and the flexible metal sheet.

[0005]

According to the above configuration,
The flexible metal sheet is pressed against the upper wooden plate through the heat equalizing plate by the synthetic resin foaming in the space,
At this time, the flexible metal sheet is deformed so as to surround the linear heating element, thereby securely fixing the linear heating element.

However, since the flexible metal sheet itself does not stretch, even if it is deformed to some extent along the shape of the linear heating element arranged in a predetermined pattern,
It does not deform until it surrounds the linear heating element. The degree of this deformation is determined by the balance between the foaming pressure of the synthetic resin and the tensile force of the flexible metal sheet.

For this reason, a space is actually left around the linear heating element, and this space lowers the heat transfer efficiency. In particular, when the linear heating elements are thick, a continuous space is formed between adjacent linear heating elements, so that the flexible metal sheet and the heat equalizing plate are not in contact with each other, and the heat conduction efficiency is greatly increased. Will be reduced. Further, since the load from the floor material surface is concentrated on the heating element, the heating element may still be damaged.

[0008]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an improved heat generating floor material which is excellent in heat conduction efficiency and does not damage a heating element even when a load is applied from the floor material surface. And

That is, the heat-producing floor material according to the present invention is provided in a box body comprising a pair of opposed front and back plate members, and a pair of crosspieces sandwiched between both side edges of the plate members. Disposing a metal sheet to which a linear heating element is adhered so that the metal sheet is in contact with the inner surface of the surface plate-shaped body, wherein the linear heating element is formed by resin coating around a heater coil; The linear heating element is adhered to the metal sheet by heat-sealing the coating resin with a resin adhesive applied on the metal sheet, and the back plate-shaped body and a pair of crosspieces and metal The heating element and the metal sheet are pressed and fixed to the inner surface of the front plate-like body by the synthetic resin foam foamed and cured in the space formed by the sheet.

[0010]

In the heat-producing flooring material of the present invention, a decorative plate can be laminated on the surface of the surface plate. Further, the crosspiece can be provided with a joining means.

[0012]

FIG. 1 is a cross-sectional view showing a heating floor material according to an embodiment of the present invention, and FIG. 2 is an enlarged view of the heating floor material. A box body is formed by a pair of crosspieces 3, 3 sandwiched between both side edges of these plate-like bodies, and a metal sheet 5 for attaching the linear heating element 4 to the back side is formed in the box body. It is arranged so as to be in contact with the inner surface of the surface plate-like body 1. The linear heating element 4 and the metal sheet 5 are formed by the synthetic resin foam 6 foamed and cured in the space formed by the back plate 2 and the pair of crosspieces 3 and 3 and the metal sheet 5. 1 is pressed and fixed to the inner surface.

As the front plate 1 and the back plate 2, for example, a composite of a plywood, a wood chip board, a wood fiber board, a veneer laminated board and the like alone or in any combination is used. be able to.

The crosspieces 3 are plywood, laminated veneer,
Solid wood, laminated wood and the like are preferably used.

The linear heating element 4 is a coil-type heater wire conventionally used for a heating floor material. Preferably, the coil is made of a synthetic resin having excellent heat resistance and insulation such as a vinyl chloride resin. It is coated.

The metal sheet 5 is a metal sheet made of aluminum, copper, stainless steel or the like. The metal sheet has a thickness of 10 to 100 μm, which is generally called a metal foil, or a metal sheet having a thickness of 0.1 to 100 μm.
Those having a thickness of up to about 7 mm are practically used. A relatively thick metal sheet has an excellent effect of uniformly transmitting the heat generated by the linear heating element to the entire surface of the surface plate. When a thin metal sheet is used, a metal plate such as an aluminum plate, an iron plate, or a copper plate can be further disposed between the thin metal sheet and the surface plate.

As the synthetic resin foam 6, urethane-based
Synthetic resins such as polystyrene, phenol, and polyethylene can be used. The synthetic resin foam has a strength sufficient to support the load applied to the surface plate-like body after the foaming and curing, and a material excellent in heat insulation performance is suitably used.

In order to attach the linear heating element 4 on the metal sheet 5, for example, as shown in FIG.
It is preferable that a thermosetting resin adhesive 7 is applied to one surface and a resin 42 coated around the coil 41 of the linear heating element is thermally fused. Adhesion by heat fusion increases the contact area between the linear heating element 4 and the metal sheet 5, and improves the efficiency of heat conduction from the linear heating element 4. In addition, it is not preferable that the resin 42 around the coil 41 be easily peeled off by directly heat-sealing the metal sheet 5.

The linear heating elements 4 can be arranged on the metal sheet 5 such that one linear heating element is meanderingly arranged on the metal sheet 5 or a plurality of linear heating elements are arranged in parallel or arbitrarily. Can be arranged in an array. Further, a temperature sensor (not shown) can be similarly stuck on the metal sheet 5. As described above, by attaching all the components related to the heating element such as the linear heating element 4 and the temperature sensor on the metal sheet 5 in advance, it can be handled as one sheet-like material, and can be transported and heated. Handling during the production of the material is facilitated.

A metal sheet 5 to which a linear heating element 4 obtained as shown in FIG. 3 is adhered is formed by a front plate 1 and a back plate 2 and a pair of crosspieces 3. After the metal sheet 5 is arranged in the inner space of the box so that the metal sheet 5 is in contact with the inner surface of the front plate 1, in other words, the linear heating element 4 is on the back side, the inner space of the box is filled. The synthetic resin is foamed. At this time, both ends in the longitudinal direction of the box are closed with an optional lid. Thereby, the synthetic resin expands so as to surround the shape of the linear heating element 4 (and related components such as a temperature sensor) adhered to the back surface side of the metal sheet 5 in the closed inner space of the box. Then, the metal sheet 5 is pressed against the inner surface of the front plate 1. By curing the synthetic resin foam 6 in such a state, the heat generating floor member of FIG. 1 is obtained.

In the state where the synthetic resin foam 6 has been cured, all parts except the part where the linear heating element 4 is adhered to the back side of the metal sheet 5 have the excellent heat insulation performance. , All of the heat generated by the linear heating element 4 is transmitted to the metal sheet 5, and exhibits extremely good heat conduction efficiency.

In the heat generating flooring material of the present invention, a decorative plate 8 is laminated on the surface as needed, and joining means 91,
92 are formed (refer to FIG. 1 and not shown in FIG. 2). The floor surface is formed by directly arranging and fixing the heat generating floor material on the joist, or by disposing and fixing the laminated plywood on the joist. After the decorative board 8 is not laminated on the heat generating floor material itself, and thus the floor surface is formed, an arbitrary decorative board may be arranged and fixed on the surface.

Although the case where a linear heating element is used as the heating element has been described above, a sheet heating element may be used in the heating floor material of the present invention. When a sheet heating element is used, a sheet heating element which is a sheet having substantially the same dimensions as the metal sheet 5 is attached, or a hot-wire printed board formed in various patterns is attached to the metal sheet 5. Can be worn and used.

[0024]

According to the present invention, since the heating element is adhered to the back side of the metal sheet, the synthetic resin foam which is foamed in the space is expanded so as to surround the shape of the heating element. To cure. Therefore, unlike the prior art, no space is left around the heating element, and the heat transmission efficiency from the heating element is excellent, and the heating element may be damaged by the load from the floor material surface. Absent.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration of a heating floor material according to an embodiment of the present invention.

FIG. 2 is an enlarged view of an end portion of FIG. 1 (a decorative plate on the surface and a joining means are not shown).

FIG. 3 is an explanatory view showing a method of attaching a linear heating element on a metal sheet in the heating floor material of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 front plate-shaped body 2 back plate-shaped body 3 crosspiece 4 linear heating element 5 metal sheet 6 synthetic resin foam 7 thermosetting resin adhesive 8 decorative board 41 coil of linear heating element 42 coating resin around coil 91 , 92 Joining means

Claims (3)

(57) [Claims] 1. A linear heating element is attached to a box composed of a pair of opposed front and rear plate-like bodies and a pair of crosspieces sandwiched between both side edges of these plate-like bodies. The attached metal sheet is disposed so that the metal sheet is in contact with the inner surface of the surface plate-like body, and the linear heating element is formed by resin coating around a heater coil, and the coating resin is formed on the metal sheet. The linear heating element is stuck on a metal sheet by being thermally fused with the applied resin adhesive,
Further, the heating element and the metal sheet are pressed and fixed to the inner surface of the front plate by a synthetic resin foam foamed and cured in a space formed by the back plate and the pair of crosspieces and the metal sheet. Heat generating flooring. 2. The heating floor material according to claim 1, wherein a decorative board is laminated on the surface of the surface plate. 3. The heat-producing floor material according to claim 1, wherein a joining means is provided on the crosspiece.