JPH0548005Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a wood-based floor heating panel used as a floorboard.

(Prior art) It is desired that the temperature of wooden floor heating panels rises quickly and that the surface temperature is uniform without any unevenness. - As disclosed in Publication No. 161328, a metal heating plate is disposed above the surface heating element, and the surface heating element and the wooden surface layer are bonded and integrated through this heating plate. That's what I'm saying.

(Problem to be solved by the invention) By providing the above-mentioned heat equalizing plate, the heat equalizing plate receives the heat generated by the surface heating element over the entire surface and distributes the heat uniformly, and the heat transfer property of the heat equalizing plate itself is improved. Because of this, the heat from the planar heating element is quickly transferred to the wood surface layer, improving the rise in temperature.

However, since the flat heating plate (metal), the wooden surface layer (wood), and the adhesive (resin) are made of different materials, there are considerable differences in expansion and contraction due to heat, so changes in temperature can occur. As the process was repeated, the adhesive could no longer maintain sufficient adhesion to the heat soaking board and the wooden surface layer, causing some parts of the adhesive to peel off.
Since the heat transfer performance of the peeled area is lower than that of other areas, there is a problem that the heat uniformity and temperature rise gradually decrease during long-term use.

In order to solve these conventional problems, the present invention was devised to solve the problems.In particular, by using a metal perforated plate with a unique structure as a heat equalizing plate, it is possible to use a perforated metal plate with a unique structure. The purpose is to prevent the adhesive strength from decreasing and maintain the original performance of the heat soaking plate stably over a long period of time.

(Means for solving the problem) However, in order to achieve the above-mentioned purpose, the present invention
As is clear from the drawings showing the embodiments, as a floor heating panel, a metal perforated plate 5 is placed as an upper layer in a space between a base material 1 and a wooden surface material 2 bonded to the surface thereof, and a planar heating element is provided. The metal perforated plate 5 is formed into a stretchable lath shape with diamond-shaped lines diagonally intersecting each other. are bonded and integrated by an adhesive layer 6 consisting of a layer filled in each diamond-shaped hole of a metal perforated plate 5 and a thin layer closely adhered along both upper and lower surfaces.

(Function) Since the filaments of the metal perforated plate 5 are densely and widely spread, the heat generated by the planar heating element 4 can be quickly and uniformly transferred to the wooden surface material 2. be.

Furthermore, the perforated metal plate 5 itself has elasticity, and the adhesive force of the adhesive layer 6 present in each hole and on both the upper and lower surfaces exerts an anchoring effect on the perforated metal plate 5. This combination of strength and strength allows it to absorb differences in expansion and contraction due to differences in materials and maintain stable adhesive strength over a long period of time.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

The floor heating panel according to the present invention has a base material 1 made of plywood, particle board, etc., and a wooden surface material 2 made of surface-treated plywood, etc., bonded to the surface of the base material through a crosspiece 3. A flooring unit body having a space for this purpose is formed.

A planar heating element 4 and a metal perforated plate 5 constituting the heater unit are buried in the space in alignment with the upper and lower two layers, and the heater unit is buried between the surrounding frame edge 3. A gap of very small length is provided to absorb the elongation.

The planar heating element 4 is a highly flexible sheet-shaped heating element made of a composite material of tetrafluoroethylene resin and conductive carbon and has a thickness of about 110μ, but of course other heating elements such as resistance wire can be used. It can be replaced with a zigzag spread, etc.
It is a general term for them.

On the other hand, the metal perforated plate 5 is made of a metal plate with excellent heat transfer properties such as an aluminum plate, iron plate, or copper plate, and has diamond-shaped holes formed by diagonally intersecting lines like a metal lath often used in construction materials. It has a structure with a large number of , and has some elasticity in each direction of the plate surface.

The planar heating element 4 having the above-described structure is used as the lower layer and the perforated metal plate 5 is used as the upper layer and is buried in the space. , an adhesive layer 6 is formed by thinly layering it along both the upper and lower surfaces, and the planar heating element 4 and the wooden surface material 2 are bonded together.
They are integrated by adhesion via a metal perforated plate 5 and an adhesive layer 6.

Note that the adhesive for forming the adhesive layer 6 is as follows:
It is preferable to use a material that is heat resistant and has adhesive strength to wood, metal, and synthetic resin, and adhesives made of synthetic resin, such as epoxy resin, are suitable.

In the example shown in FIG. 1, the adhesive is applied to both sides of the metal perforated plate 5 and filled into each hole, and is bonded to a predetermined location on the back surface of the wooden surface material 2. After the planar heating element 4 is closely attached to the lower surface of the perforated plate 5 so as to sandwich it, the adhesive is cured by heat treatment, etc., so that the members 2, 4, and 5 are bonded together through the adhesive layer 6. to become

By bonding and assembling this integral structure to the base material 1, a unit of the floor heating panel is formed.

On the other hand, in the example shown in each figure from FIG. A heating plate having the structure shown in FIGS. 3 and 4 was prepared in advance, and after it was heat-processed to bond the sheets 7 and 7 in each hole, By applying the same type of adhesive, etc.
The wooden surface material 2 and the planar heating element 4 are brought together and adhered to both sides, and then attached to the base material 1 via the crosspiece 3 as shown in cross section in FIG. 4 to form a floor heating panel. ing.

In the floor heating panel according to the example of the present invention, the heat generated by the planar heating element 4 is efficiently transmitted to the integrated metal perforated plate 5 via the adhesive layer 6, so that the heat is uniformly distributed over all the filaments of the plate 5. Heat propagates.

Metal perforated plate 5 uniformly heated in this way
On the other hand, since the wooden surfacing material 2 is in close contact with the wooden surfacing material 2 through the thin adhesive layer 6, the entire surface of the wooden surfacing material 2 is heated uniformly, thus making the surface temperature uniform.

However, since the adhesive layer 6 exists as a thin layer on both sides of the perforated metal plate 5, it exerts an anchoring effect on the perforated metal plate 5, so that peeling from the perforated metal plate 5 does not occur. , and metal, wood,
The difference in expansion and contraction due to the difference in resin materials is the metal perforated plate 5.
Since the perforated metal plate 5 effectively absorbs the heat, the temperature uniformity performance of the perforated metal plate 5 is stably exhibited, and the rate of temperature rise with respect to the wood surface material 2 is also increased.

The example shown in FIG. 2 also has the advantage of preventing deterioration of the perforated metal plate 5 since the resin sheet acts as a covering material.

(Effects of the invention) As detailed above, the present invention enables the heat generated by the planar heating element 4 to be uniformly transmitted to the wooden surface material 2 by the heat dispersion effect of the metal perforated plate 5. be.

Further, since the perforated metal plate 5 has filaments that are densely spread in a plane, it has excellent heat conductivity, and therefore has the advantage that the surface temperature rises quickly.

Furthermore, since the perforated metal plate 5 has elasticity, it can sufficiently absorb differences in thermal expansion and contraction due to differences in materials such as metal, wood, and resin adhesive, and can also maintain the anchoring effect of the adhesive layer 6. Since it can maintain stable adhesive strength, it can even out the surface temperature.
In addition, the ability to speed up the rise in temperature is effectively maintained over a long period of time.

[Brief explanation of the drawing]

FIGS. 1 and 2 are sectional views of each embodiment of the present invention, and FIGS. 3 and 4 are a plan view and a sectional view of a heat equalizing plate in the floor heating panel of FIG. 2. DESCRIPTION OF SYMBOLS 1...Base material, 2... Wood surface material, 4... Planar heating element, 5... Metal perforated plate, 6... Adhesive layer.

Claims (1)

[Scope of utility model registration request] In the space between the base material 1 and the wooden surface material 2 bonded to the surface thereof, two layers are embedded, including a metal perforated plate 5 as an upper layer and a sheet heating element 4 as a lower layer. The board 5 was formed into a stretchable lath shape with diamond-shaped lines diagonally intersecting each other, and each of the diamond-shaped holes of the metal perforated board 5 was filled with a wooden surface material 1 and a planar heating element 4. A floor heating panel characterized in that the panel is bonded and integrated with an adhesive layer 6 consisting of a layer and a thin layer in close contact with each other along both upper and lower surfaces.