JP3449974B2 - Heated floor structure and construction method thereof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating floor structure used for floors of houses and the like and a method for constructing the structure.

[0002]

2. Description of the Related Art Conventional floor heating includes hot water type floor heating in which hot water is circulated in a pipe arranged under the floor, and electrothermal type floor heating in which a sheet material that generates heat when energized is provided on the lower surface of the floor material. It has been known. In hot water floor heating, the work such as piping and boilers that supply hot water is extremely complicated, time-consuming and expensive, and requires regular maintenance.

On the other hand, in the conventional electric heating type floor heating using a planar heating element, the planar heating elements arranged on the base board at regular intervals are connected by a cable having a diameter of about 3 to 5 mm. The flooring material is placed on it and fixed by nailing or the like at a portion where there is no sheet heating element. Therefore, there is a difference between the floor temperature of the portion having the heating element and the floor temperature of the portion having no heating element, and the temperature of the floor surface becomes uneven. In order to eliminate this temperature unevenness, it has been proposed to entirely interpose an aluminum foil between the sheet heating element and the flooring material, but this requires time and effort for construction, resulting in an increase in cost. Further, in order to prevent a step from occurring at the portion where the cable is arranged, it is necessary to cut the lower surface of the flooring material to be placed on the cable to provide a groove for storing the cable. There was a problem that it took time to install.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves these problems of the prior art, can uniformly heat the entire floor, has excellent sound insulation, and is extremely simple in construction, and can reduce construction costs. At the same time, it is an object of the present invention to provide a heating floor structure capable of increasing the available indoor space by reducing the thickness of the heating floor.

[0005]

In order to solve the above-mentioned problems, the heating floor structure of the present invention has the following structure. 1. On the base board, the vibration damping and sound insulating layer containing the heat storage inorganic filler and the fiber sheet layer and the vibration damping and sound insulating plate and the synthetic resin foam sheet are placed in this order, and a plurality of surfaces are placed on the synthetic resin foam sheet. -Shaped heating elements are arranged with a predetermined interval,
In a heating floor structure in which a flooring material is provided on an upper surface of a sheet heating element, a wiring floor is formed by cutting out a synthetic resin foam sheet of a wiring portion of the sheet heating element. 2. 2. The heating floor structure according to 1, wherein the synthetic resin foam sheet is provided with through holes. 3. The floor structure is a double floor structure in which a baseboard is installed on the floor foundation of the building through a space 1
Or the heating floor structure according to 2. 4. On the floor foundation of the building, unit support legs having height-adjustable rootstocks are arranged at a predetermined pitch on the upper end of the adjuster, and the base board is fixed on the rootstocks of the unit support legs. The heating floor structure described. 5. The vibration-damping and sound-insulating layer of the vibration-damping and sound-insulating plate is characterized in that 0 to 100 parts by weight of a thermoplastic polymer and 100 to 2000 parts by weight of a heat-storing inorganic filler are added to 100 parts by weight of asphalt and uniformly mixed. The heating floor structure according to any one of 1 to 4. 6. 6. The heat-storing inorganic filler is one kind or two or more kinds selected from the group consisting of metals, metal oxides and metal salts having a particle size of 0.5 mm or less. Heating floor structure. 7. The heating floor structure according to any one of 1 to 6, wherein the vibration damping / insulating layer has a density of 2.8 g / cm ³ or more. 8. On the base board, the vibration damping and sound insulating layer containing the heat storage inorganic filler and the fiber sheet layer and the vibration damping and sound insulating plate and the synthetic resin foam sheet are placed in this order, and a plurality of surfaces are placed on the synthetic resin foam sheet. After arranging the heat generating elements at a predetermined interval, store the wiring of the planar heating element in the wiring storage part formed by cutting out the synthetic resin foam sheet, and provide the flooring material on the upper surface of the planar heating element. 8. A method for constructing a heating floor structure according to any one of 1 to 7 above.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described with reference to the drawings, but the following specific examples do not limit the present invention. FIG. 1 is a perspective view showing an example of a heating floor structure of the present invention. In this example, unit support legs 3 having a height-adjustable rootstock 2 on the upper end of an adjuster are arranged at a predetermined pitch on a floor foundation 1 of a building made of a concrete slab. The base board 4 is fixed on the top. Building wall 5
The base board 4 is supported by the joist 6 at the connecting portion between the base board 4 and the base board 4. And base board 4
A vibration damping and noise insulating layer 7 containing a heat storage inorganic filler and a fiber sheet layer, and a synthetic resin foam sheet 8 are sequentially placed on the top of the synthetic resin foam sheet 8. After arranging the sheet heating element 9 at a predetermined interval, the wiring 11 of the sheet heating element 9 is stored in the wiring storage portion 10 formed by cutting off the foamed sheet 8, and is placed on the upper surface of the sheet heating element. The flooring material 12 is installed. Each sheet heating element 9
Are connected by a wiring 11 and further connected by a wiring 13 to a controller 14 provided on the wall surface 5.
Moreover, the flooring material 12 has its upper portion fixed to the wall surface 5 by a skirting board 15.

The vibration damping / insulating plate 7 is formed by laminating a vibration damping / insulating layer in which a heat-storing inorganic filler is uniformly mixed in a binder resin and a fiber sheet layer. As the heat-storing inorganic filler, iron, copper, lead, tin, zinc, nickel, metal powder such as stainless steel, iron oxide, iron sesquioxide, ferrosoferric oxide, ferrite, lead oxide, tin oxide, and oxide Metal oxides such as zinc, copper oxide, aluminum oxide, barium sulfate,
Metal salts such as calcium sulfate, lead sulfate, aluminum sulfate, calcium sulfite, calcium carbonate, lead carbonate, barium carbonate, magnesium hydroxide, steelmaking slag, mica,
Clay, talc, zinc white, wollastonite, diatomaceous earth, silica sand, pumice powder, etc. can be used, and these can be used individually or in mixture of 2 or more types.
As the binder resin, asphalt, rubber, various thermoplastic synthetic resins, or a mixture thereof can be used.

In order to improve the heat storage effect and soaking effect of the vibration damping and sound insulating layer, it is preferable to use an inorganic filler having a large thermal conductivity. Examples of preferable inorganic fillers include iron powder, various iron oxide powders, and steelmaking slag powders, and it is particularly preferable to use them as powders having a particle size of 0.5 mm or less, particularly 0.2 mm or less. By using such a finely powdered inorganic filler, it improves the moldability when manufacturing a vibration damping and sound insulation board, and evenly mixes and blends a large amount of the inorganic filler in the base material such as asphalt. It is possible to increase the density of the vibration-damping and sound-insulating layer to 2.8 g / cm ³ or more to improve the vibration-damping and sound-insulating effect. Can be improved. In the present invention, by laminating the vibration damping / insulating layer containing such a heat-storing inorganic filler with the fiber sheet layer, the vibration damping / insulating effect of the vibration damping / insulating plate and the heat storage effect and the uniform heating effect of the entire floor can be obtained. To improve. When the fibrous sheet layer is not used, it becomes difficult to manufacture a desired vibration damping and sound insulating plate, and the heat storage effect and the soaking effect of the heating floor structure are reduced.

A preferable vibration damping / insulating layer is 100 parts by weight of asphalt to 0 to 100 parts by weight of a thermoplastic polymer.
One obtained by adding 100 to 2000 parts by weight of the inorganic filler and then uniformly mixing is added. When the thermoplastic polymer is added, the inorganic filler may be added to a mixture of asphalt and polymer in advance.
There is no particular limitation on the asphalt used, and what is generally called asphalt, for example, natural asphalt and petroleum asphalt such as straight asphalt and blown asphalt are used. These asphalts can be used alone or as a mixture of two or more kinds.

As the thermoplastic polymer, polyolefin, polyvinyl chloride, nylon, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene.
Methyl acrylate copolymer, ethylene / ethyl acrylate copolymer, styrene / butadiene copolymer, natural rubber, natural rosin, modified rosin, etc. can be used, but especially styrene / butadiene block copolymer is used. Preferably. Inorganic filler is asphalt 10
It is preferable to add 100 to 2000 parts by weight to 0 parts by weight, and when the amount of the inorganic filler is less than 100 parts by weight, sufficient vibration damping and sound insulation effects cannot be obtained, and 20
If the amount exceeds 100 parts by weight, the whole becomes brittle and the workability as a vibration damping and sound insulating plate deteriorates. In order to form such a vibration damping and noise insulating plate in which the vibration damping and noise insulating layer and the fiber sheet layer are laminated, for example, a thermoplastic polymer and an inorganic filler are added to asphalt, and the vibration damping and noise insulating sheet is evenly mixed after heating. Is formed and laminated with a fiber sheet, or a vibration-damping / insulating layer is directly formed between two fiber sheet layers by using an asphalt mixture in a heating and melting state. At this time, an adhesive layer may be provided between the layers as needed.

FIG. 2 is a schematic sectional view showing an example of the vibration damping and sound insulating board 7 used in the heating floor structure of the present invention. In FIG. 2, reference numerals 21 and 23 are fiber sheet layers, reference numeral 22 is a vibration damping / insulating layer, and reference numeral 24 is a soft resin layer. This vibration damping / insulating plate 7 is 20 parts by weight of asphalt and has a particle size of 0.5 mm.
After extruding and laminating the heat-melted asphalt composition obtained by uniformly mixing 70 parts by weight of the following iron oxide powder and 10 parts by weight of calcium carbonate powder of 200 mesh or less between the polyester nonwoven fabrics 21 and 23 constituting the fiber sheet layer. ,
A cross-linked polyethylene foam sheet 24 is heat-welded as a soft resin layer to have a thickness of 6 mm (the thickness of the vibration damping / insulating layer 22 is 4 mm
Then, the vibration damping / insulating plate 7 having a density of 2.8 g / cm ³ is constructed. The soft resin layer 24 may be omitted.

In the heating floor structure of the present invention, by using the vibration damping / insulating plate in which the vibration damping / insulating layer containing such a heat-storing inorganic filler and the fiber sheet layer are laminated, the heat of the sheet heating element is reduced. Is stored in the inorganic filler and evenly dispersed throughout the floor, preventing temperature unevenness on the floor surface without using aluminum foil as in the prior art, and improving the thermal efficiency during floor heating. Can be made. Further, due to the excellent vibration damping / insulating effect, it is possible to prevent the vibration and noise generated in the room from propagating to the downstairs and the adjacent room.

A synthetic resin foam sheet 8 is placed on the vibration damping / insulating plate 7. However, the synthetic resin foam sheet is not particularly limited, and a thermoplastic plastic foam sheet usually used as a building material is used. Used. Examples of thermoplastics constituting such a foamed sheet include polyolefins such as polyethylene, ethylene / vinyl acetate copolymers, polyvinyl chloride, polyurethane and the like. Preferred examples of the foamed sheet include a crosslinked polyolefin foamed resin, particularly a body density crosslinked polyethylene foamed resin having a closed cell of a foaming ratio of 5 to 40 times, and more preferably 10 to 30 times, a polypropylene foamed resin sheet and the like.

In the present invention, the use of such a synthetic resin foam sheet 8 makes it possible to absorb the level difference when a plurality of sheet heating elements are arranged at a predetermined interval. Then, the foamed sheet of the wiring portion of the planar heating element can be cut off with a cutter or the like to easily form the wiring housing portion 10. Therefore, a method for forming the wiring housing portion by cutting the lower surface of the conventional flooring material. Compared with the above, it is possible to save time and cost significantly. further,
By installing the synthetic resin foam sheet 8, it becomes possible to absorb vibration and noise generated in the room. As shown in FIG. 3, the synthetic resin foam sheet 8 is provided with a large number of through-holes 18 penetrating the sheet, so that the heat generated from the planar heating element 9 can be more efficiently transferred to the vibration damping / insulating plate 7. It is possible to store heat and eliminate the temperature unevenness on the floor surface to further improve the soaking effect. The cross-sectional shape of the through holes 18 is arbitrary such as circular or polygonal, and the size and arrangement thereof can also be arbitrarily selected such as checkered or staggered.

A plurality of sheet heating elements 9 are arranged on the synthetic resin foam sheet 8 at a predetermined interval, and the sheet heating elements 9 are connected by wiring 11. It is preferable to use a film-shaped strip-shaped electric wire as the wiring 11 because the step can be easily eliminated. The planar heating element 9 is not particularly limited, and for example, an existing planar heating element that generates heat when energized, such as carbon paper, carbon cloth, and carbon mat with electrodes attached to both ends, can be used, and the resistance is relatively high. It is possible to use a cloth of high-value metal fibers or a laminated product thereof, or a rubber sheet in which a conductive material such as carbon black is kneaded.

The sheet heating element has a thickness of 1 m in order to suppress the thickness of the entire floor structure and increase the available indoor space.
It is preferable to use an ultra-thin sheet heating element of m or less,
Examples of such an ultra-thin sheet heating element include a sheet in which various fibers are woven in a mesh shape, coated with a conductive agent, or a base film such as polyester or the like, which has a PTC (Positive Tempa
Rature Coefficient: A special heat-generating ink that exhibits characteristics (for example, a barium titanate-based ceramic that is semiconducting with a trace amount of a rare earth element such as yttrium, antimony, or lanthanum) is printed. Can be mentioned. When the sheet heating elements are connected by a film-shaped ultra-thin band-shaped electric wire, the thickness of the wiring portion can be suppressed. The step in the wiring portion is eliminated by cutting the foamed sheet 8 with a cutter or the like to form the wiring housing portion 10.

A flooring material 12 is arranged on the upper surface of the sheet heating element 9, and a portion where the sheet heating element is not installed is fixed with a nail or the like. In addition, at the connecting portion between the flooring material 12 and the wall surface 5, the upper surface of the flooring material 12 is fixed by a skirting board 15.

FIG. 4 is a schematic partial sectional view showing another example of the heating floor structure of the present invention. In this example, in the connecting portion between the wall surface 5 of the building and the base board 4, the base board 4 is replaced with the floor joist 6 in the floor structure of FIG. 1, and the vibration isolation / insulation pad 16 is provided at the end of the rootstock 2. It is supported by the support legs 3. The other structure of the floor structure is the same as that of FIG.

FIG. 5 is a partial sectional schematic view showing still another example of the heating floor structure of the present invention. In this example, the unit support legs 3 are not used, and the base board 4 is supported by the bundle 17 and the joist 6 provided on the floor foundation of the building. The other structure of this floor structure is the same as that of FIG.

In each of the above examples, the heating floor structure of the double floor structure in which the base board is installed on the floor foundation of the building through the space has been described, but the present invention is limited to these double floor structures. It goes without saying that the present invention can also be applied to a floor structure in which a heat insulating material layer or the like is provided on the floor foundation of the building and the baseboard is directly installed, if desired. Further, the vibration damping and sound insulating plate is not limited to the above specific example, and various types can be used.

[0021]

With the above structure, the heating floor structure of the present invention has the following remarkable effects. (1) The entire floor can be uniformly and efficiently heated without interposing an aluminum foil between the planar heating element and the flooring material, and the vibration damping and sound insulating properties are excellent. (2) The construction is extremely simple and the construction cost can be reduced. In addition, it can be easily used not only for new construction but also for renovation of existing buildings. (3) The usable indoor space can be increased by reducing the thickness of the heating floor to increase the ceiling height.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a heating floor structure of the present invention.

FIG. 2 is a vibration damping and sound insulating board used in the heating floor structure of the present invention.
It is a figure which shows an example.

FIG. 3 is a diagram showing an example of a synthetic resin foam sheet used in the heating floor structure of the present invention.

FIG. 4 is a diagram showing another example of the heating floor structure of the present invention.

FIG. 5 is a diagram showing another example of the heating floor structure of the present invention.

[Explanation of symbols]

1 floor foundation Two rootstocks 3 unit support legs 4 baseboard 5 walls 6 Gentoku 7 Vibration control sound insulation board 8 synthetic resin foam sheet 9 Sheet heating element 10 Wiring storage 11, 13 wiring 12 Flooring material 14 Controller 15 skirting board 16 Anti-vibration sound insulation pad 17 bundles 18 through holes 21, 23 Fiber sheet layer 22 Vibration control sound insulation layer 24 Soft resin layer

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04F 15/18 F24D 13/02

Claims (8)

(57) [Claims] 1. A synthetic resin foam sheet comprising a base board, a vibration damping and sound insulation layer containing a heat storage inorganic filler and a fiber sheet layer, and a synthetic resin foam sheet, which are placed in this order on the base board. In a heating floor structure in which a plurality of sheet heating elements are arranged at a predetermined interval and a flooring material is provided on the upper surface of the sheet heating element, the synthetic resin foam sheet of the wiring portion of the sheet heating element is cut off. A heating floor structure characterized by forming a wiring storage part. 2. The heating floor structure according to claim 1, wherein the synthetic resin foam sheet is provided with through holes. 3. The heating floor structure according to claim 1, wherein the floor structure is a double floor structure in which a base board is installed on a floor foundation of a building through a space. 4. A unit supporting leg having a height-adjustable rootstock at the upper end of an adjuster is arranged at a predetermined pitch on a floor foundation of a building, and a baseboard is fixed on the rootstock of the unit supporting leg. The heating floor structure according to claim 3, which is characterized in that. 5. A vibration-damping sound-insulating layer of a vibration-damping sound-insulating plate, wherein 100 parts by weight of asphalt, 0 to 100 parts by weight of a thermoplastic polymer, and 100 to 2000 parts by weight of a heat-storing inorganic filler are added and uniformly mixed. Claims 1 to 4 characterized in that
Heating floor structure according to any one of. 6. The heat-storing inorganic filler is one or more selected from the group consisting of metals, metal oxides and metal salts having a particle size of 0.5 mm or less. The heating floor structure according to claim 5. 7. The heating floor structure according to any one of claims 1 to 6, wherein the vibration damping and sound insulating layer has a density of 2.8 g / cm ³ or more. 8. A synthetic resin foam sheet, which comprises a base board, a vibration damping and sound insulating layer containing a heat-storing inorganic filler and a fiber sheet layer, and a synthetic resin foam sheet. After arranging a plurality of sheet heating elements at a predetermined interval above, the wiring of the sheet heating element is housed in the wiring storage part formed by cutting out the synthetic resin foam sheet, and on the upper surface of the sheet heating element. A heating floor structure construction method according to any one of claims 1 to 7, wherein a flooring material is provided.