JP2000002442A - Panel for floor heating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce weight and a cost. SOLUTION: A panel 20 for floor heating is disposed between floor joists of which the floor of a building consists and dissipates heat onto a floor surface, The panel comprises a heating fluid conducting pipe 25 to guide heating fluid; a panel body 23 provided on the back with the heating fluid conducting pipe, and at two side edge parts with flange parts 29 locked on the upper surface of the floor joist; and a heat insulation filler 27, with which the back side of the panel body is filled, which is molded by using a molding die 32 and fixed on the back of the panel body, and in which the heating fluid conducting pipe is embedded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating panel disposed between joists constituting a floor of a building.

[0002]

2. Description of the Related Art Floor heating can achieve a comfortable heating effect without excessively increasing the indoor temperature by keeping the floor surface at an appropriate temperature. In recent years, floor heating has become widespread in general wooden buildings. .

[0003] As an apparatus used for such floor heating, a floor heating panel arranged between a plurality of joists constituting a floor is disclosed in Japanese Utility Model Publication No. 7-42006. FIG.
The floor heating panel 10 disclosed in the above publication is shown in FIG.

[0004] The floor heating panel 10 comprises a panel body 1.
A heating fluid conduit 12 for guiding a heating fluid is adhered to and adhered to the back surface of the panel 1, and a flange 13 is formed on both side edges of the panel body 11 and a side plate 14 is integrally suspended therefrom. A heat insulating sheet 15 is fixed to the lower end of the 14,
These panel body 11, side plate portion 14, and heat insulating sheet 15
The space surrounded by is filled with a heat insulating filler 16.

[0005] Both flange portions 13 of the panel body 11 are hung on the upper surface of the joist 17 of the floor, and the floor heating panel 10 is mounted between the joists 17. At this time, the urethane sheet 18 stuck on the outer side of the both side plate portions 14 of the panel main body 11 is elastically deformed, and a dimensional error or the like at the interval of the joist 17 is absorbed. Then, the heat of the heating fluid flowing through the heating fluid conduit 12 of the panel body 11 is dissipated on the floor via the panel body 11 to heat the room.

[0006]

As described above, in the floor heating panel 10, the heat insulating filler 16 is foamed by the panel main body 11 and the side plate portion 14 made of a metal plate and the heat insulating sheet 15 made of an aluminum sheet. Since the box structure for filling is configured, the weight of the floor heating panel 10 as a whole increases, and the cost also increases.

Further, since the urethane sheet 18 is attached to the outside of the side plate portion 14 before and after the filling step of the heat insulating filler 16, the manufacturing process of the floor heating panel 10 becomes complicated.

An object of the present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a floor heating panel capable of realizing light weight and low cost.

[0009]

According to the first aspect of the present invention,
In a floor heating panel disposed between joists constituting a floor of a building and dissipating heat on the floor surface, a heating fluid conduit for guiding a heating fluid and the heating fluid conduit are arranged on a back surface, and A panel body having flange portions on both side edges that can be hooked to the upper surface of the joist; a back surface side of the panel body being filled and molded to be fixed to the back surface of the panel body and to the heating fluid conducting pipe; And a heat-insulating filler for embedding.

According to a second aspect of the present invention, in the first aspect of the present invention, a sheet is fixedly provided on an outer surface of the heat insulating filler.

According to a third aspect of the present invention, in the second aspect, the sheet is interposed between the heat-insulating filler and the molding die when the heat-insulating filler is molded by a molding die. The release sheet is a deformable release sheet.

According to a fourth aspect of the present invention, in the second or third aspect, the sheet is a deformable elastic sheet made of an elastic material.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, a claw-shaped falling-off preventing member buried in a heat insulating filler is vertically provided on the back surface of the panel body. It is a thing.

[0014] The invention according to claim 6 is the invention according to claims 1 to 5.
In the invention described in any one of the above, an inclined surface that expands and inclines toward the panel body side is formed on a side surface of the heat-insulating filler in which the heating fluid conduit is embedded.

The first aspect of the invention has the following operation. The molding of the heat-insulating filler fixed to the back surface of the panel main body is performed using a molding die provided on the back surface side of the panel main body. For this reason, it is not necessary to integrally provide a box structure made of a metal plate or a resin plate or the like for molding the heat-insulating filler on the back surface side of the panel body, so that the weight of the entire floor heating panel is reduced. Cost can be further reduced. The second aspect of the invention has the following operation. Since the sheet is fixedly provided on the outer surface of the heat-insulating filler, the sheet can prevent the heat-insulating filler from being damaged during or during installation of the floor heating panel. The invention according to claim 3 has the following operation. Since the sheet is a release sheet interposed between the heat-insulating filler and the mold, the heat-insulating filler can be easily separated from the mold at the time of molding the heat-insulating filler. Furthermore, since the release sheet is fixedly provided on the outer surface of the heat-insulating filler in the process of forming the heat-insulating filler, the release sheet may be damaged during or during installation of the floor heating panel. Can be prevented.

The invention described in claim 4 has the following operation. Since the sheet is an elastic sheet made of an elastic material, the impact can be absorbed by its elasticity, so that the breakage of the heat-insulating filler can be satisfactorily prevented during or during construction of the floor heating panel. Furthermore, due to the elastic deformation of the elastic sheet, even if there is a dimensional error in the joist interval or the joist is distorted, a part of the elastic sheet is deformed, crushed, or peeled off, and the floor heating panel and the joist. Can be satisfactorily adhered to each other.

The fifth aspect of the invention has the following operation. Since a claw-shaped drop-off preventing member embedded in the heat-insulating filler is vertically provided on the back surface of the panel body, the drop-out preventing member penetrates into the heat-insulating filler after the heat-insulating filler is formed, and this heat-insulating filler is cut off. It is possible to reliably prevent the filler from separating from the panel body. The invention according to claim 6 has the following operation. The side surface of the heat-insulating filler, that is, the side surface of the floor heating panel, has an inclined surface that expands toward the panel body side. Can be easily detached from.

Further, when the floor heating panel is mounted on the joist, even if there is a dimensional error in the joist interval or a distortion of the joist, a part of the inclined surface is deformed, crushed or separated, and the floor heating is performed. The floor panel can be easily fitted between the joists, and the adhesion between the joists and the floor heating panel can be enhanced.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a longitudinal sectional view showing a floor structure of a building to which a first embodiment of a floor heating panel according to the present invention is applied.

As shown in FIG. 1, a floor heating panel 20 is disposed between joists 22 constituting a floor 21 of a building, especially a wooden house or the like. Is fixed, and heat is dissipated onto the finished floor material 24 to heat the room.

As shown in FIGS. 2 to 4, the floor heating panel 20 includes the panel body 23 and the heating fluid conduit 2 as shown in FIGS.
5, a kraft paper 26 as a sheet and a release sheet, and a urethane foam resin 27 as a heat insulating filler.

The panel body 23 is made of a metal plate such as a steel plate, and has a rectangular flat portion 28 and flange portions 29 provided on both sides of the flat portion 28 in the longitudinal direction.
And a claw portion 30 as a falling-off prevention member vertically provided from the flat portion 28.

That is, the panel main body 23 is formed by bending both sides of one metal plate cut into a rectangular shape inward so that the back surfaces are in close contact with each other. The lower end of the portion is horizontally bent inward and formed, the flat portion 28 is formed by the central portion of the metal plate, the flange portion 29 is formed by the bent overlap portion, and the folded vertical portion and the horizontal bent portion of the lower end are formed by the folded back portion. , L-shaped claw portions 30 are formed respectively. Further, the flange portion 29 is provided in a fixed width shape, and is configured to be hooked on the upper surface of the joist 22.

The heating fluid conduit 25 is made of a metal tube having good heat conductivity, such as a copper tube, and guides a heating fluid such as hot water in a circulating manner. The heating fluid conducting tube 25 is fixed to the back surface of the flat portion 28 of the panel main body 23 in a tightly contacted state using a fixing tape such as an aluminum tape 31.

The urethane foam resin 27 is molded and fixed to the rear surface of the flat portion 28 of the panel main body 23 by using a molding die 32. The molding die 32 has a substantially rectangular parallelepiped concave portion 33 having an upper opening. This mold 32
Then, the panel body 23 to which the heating fluid conduit 25 is fixed is placed so as to cover the upper opening of the concave portion 33,
A foamed resin such as liquid urethane is injected and filled into the concave portion 33 and foamed to form the urethane foamed resin 27. Thereby, the heating fluid conduit 25 and the claw portion 30 are embedded in the urethane foam resin 27.

The urethane foam resin 27 functions as a heat insulating material. When the heating fluid circulates through the heating fluid conducting pipe 25 of the floor heating panel 20, the heat of the heating fluid is transferred to the floor heating panel 20 as shown in FIG. 2 is prevented, and the floor heating panel 20 is efficiently radiated upward in FIG. 2.

In molding the urethane foam resin 27,
The kraft paper 26 which can be freely deformed is formed in the concave portion 33 of the mold 32.
Is provided, and the inside of the kraft paper 26 is filled with foam resin. The kraft paper 26 has a concave surface 33
Are disposed at positions corresponding to the bottom surface 33A and the long side surfaces 33B, and after the urethane foam resin 27 is formed, the urethane foam resin 27 is easily released from the mold 32. Further, the kraft paper 26 is made of urethane foam resin 27.
After the molding of the urethane foam resin 27, the urethane foam resin 27 is integrally fixed to the outer surface of the bottom surface portion 34 and the outer side surfaces 35 of the both side surface portions 35 to prevent the urethane foam resin 27 from peeling off.

Also, inclined surfaces are formed on both sides 33B of the elongated shape in the concave portion 33 of the molding die 32, whereby the inclined surfaces 35 are formed on both sides 35 of the urethane foam resin 27.
A is formed. The inclined surface 35A is connected to the panel body 23.
It is formed so as to expand toward the side.

As shown in FIGS. 3 and 4, end panels 37 are vertically provided on the panel main body 23 at opposite longitudinal ends of the flat portion 28. As shown in FIG. The end face plate 37 is formed from a metal plate such as a steel plate, and has a U-shaped groove 38 through which the heating fluid conduit 25 penetrates. Then, at the time of molding the urethane foam resin 27, both end portions 36 of the urethane foam resin 27 are integrally fixed to the end face plate 37.
The end face plate 37 protects the combustible urethane foam resin 27 from a flame at the time of butt-welding the heating fluid conduit 25 to connect the plurality of floor heating panels 20 in the longitudinal direction. is there.

Therefore, according to the above embodiment, the following effects (1) to (6) can be obtained.

(1) The molding of the urethane foam resin 27 fixed to the back surface of the panel main body 23 is performed using a molding die 32 disposed on the back surface side of the panel main body 23. Therefore, the urethane foam resin 27
It is not necessary to integrally provide a box structure (panel main body 11, side plate portion 14, and heat insulating sheet 15 in FIG. 8) made of a metal plate, a resin plate, or the like. The weight can be reduced, and the cost can be reduced.

(2) Urethane foam resin 27 and mold 32
Since the kraft paper 26 is interposed between the urethane foam resin 27 and the
Can be easily separated from the mold 32.

(3) During the molding process of the urethane foam resin 27, the kraft paper 26
4 and fixed to the outer surface of the side surface portion 35,
The kraft paper 26 can prevent the urethane foam resin 27 from being damaged during or during the installation of the floor heating panel 20.

(4) Since the L-shaped claw portion 30 embedded in the urethane foam resin 27 is vertically provided on the back surface of the panel main body 23, the claw portion 30 is formed of the urethane foam resin 27.
After the molding of the urethane foam resin 27,
The separation of the urethane foam resin 27 from the panel body 23 can be reliably prevented.

(5) Both sides 3 of urethane foam resin 27
5 has an inclined surface 3 expanding toward the panel body 23 side.
Since the 5A is formed, the urethane foam resin 27 can be more easily separated from the mold 32 when the urethane foam resin 27 is molded.

(6) When the floor heating panel 20 is mounted between the joists 22 of the floor 21, a dimensional error in the interval between the joists 22 and the joist 2
2, a part of the inclined surface 35A is deformed, left or peeled off, and the floor heating panel 20 is
It can be easily inserted between the two, the joist 22 and the floor heating panel 20
And the adhesiveness with the film. Therefore, like the conventional floor heating panel 10 shown in FIG.
It is not necessary to attach a urethane sheet 18 for adhering the floor heating panel 10 to the joist on the both side plate portions 14 in a later step, and the manufacturing process of the floor heating panel 20 of the present embodiment is simple and quick. Can be

(B) Second Embodiment FIG. 5 is a longitudinal sectional view showing a floor heating panel according to a second embodiment of the present invention. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The floor heating panel 4 of the second embodiment
Numeral 0 denotes a rubber sheet 41 as an elastic sheet fixed to the bottom surface 34 and both side surfaces 35 of the urethane foam resin 27, and the kraft paper 26 fixed to the outer surface of the rubber sheet 41.

Urethane foam resin 27 using a mold 32
During the molding of the bottom surface 3 of the concave portion 33 of the molding die 32,
3A and the kraft paper 26 are disposed on the long side surfaces 33B,
A deformable rubber sheet 41 is provided on the kraft paper 26. Then, the inside of the rubber sheet 41 is filled with a foaming resin such as liquid urethane. After the molding of the urethane foam resin 27, the rubber sheet 41 is integrally fixed to the outer surfaces of the bottom surface 34 and both side surfaces 35 of the urethane foam resin 27, and the kraft paper 26 is integrally fixed to the outer surface of the rubber sheet 41. Is done.

After the molding of the urethane foam resin 27, the inclined surfaces 35A are formed on both side surfaces 35, and the inclined surfaces 41A are also formed on the rubber sheet 41 corresponding to the outer surfaces of the side surfaces 35.

Therefore, according to the floor heating panel 40, in addition to the effects (1) and (4) of the floor heating panel 20, the following effects (7), (8),
(9) and (10) are also performed.

(7) Bottom part 34 of urethane foam resin 27
Since the rubber sheet 41 is fixed to the side surfaces 35, the elasticity of the rubber sheet 41 allows the impact to be absorbed.
Can be favorably prevented. (8) Due to the elastic deformation of the rubber sheet 41, even if there is a dimensional error in the interval between the joists 22 of the floor 21 or the joists 22 are distorted, a part of the inclined surface 41A of the rubber sheet 41 is deformed and left. Alternatively, the floor heating panel 40 and the joist 22 can be satisfactorily adhered to each other by peeling. Therefore, FIG.
As shown in the prior art shown in FIG.
There is no need to attach the urethane sheet 18 in the post-process,
The manufacturing process of the floor heating panel 40 can be simplified and speeded up.

(9) Since the kraft paper 26 is interposed between the rubber sheet 41 and the molding die 32, the rubber sheet 41 can be easily removed from the molding die 32 together with the urethane foamed resin 27 when the urethane foamed resin 27 is molded. Can be removed.

(10) Since the inclined surfaces 41A that expand toward the panel body 23 are formed on both side surfaces 35 of the urethane foam resin 27, that is, on both side surfaces of the rubber sheet 41, the urethane foam resin 27 At the time of molding, the urethane foam resin 27 can be detached from the mold 32 more easily.

Although the present invention has been described based on one embodiment, the present invention is not limited to this.

For example, the claw portion 30 may be fixed to the back surface of the flat portion 28 in the panel main body 23 by welding.
Further, a release agent may be interposed instead of the kraft paper 26. Further, not only the inclined surface 35A of the floor heating panel 20 and the inclined surface 41A of the floor heating panel 40 but also the end face plate 37
In addition, an inclined surface expanding toward the panel body 23 may be formed. Further, the heat insulating filler may be formed of a foamed resin other than the urethane foamed resin.

Further, in the floor heating panel 40, the kraft paper 26 may not be fixed to the outer surface of the rubber sheet 41.

[0049]

As described above, according to the panel for floor heating according to the present invention, the panel body has the heating fluid conducting pipe disposed on the back surface, and the flange portions which can be engaged with the joist upper surface on both side edges. Since the heat-insulating filler is filled into the back surface of the panel body and molded, and is fixed to the back surface of the panel body and embeds the heating fluid conduit, the heat-insulating filler material is provided on the back side of the panel body. It is not necessary to integrally provide a box structure made of a metal plate, a resin plate, or the like for forming the panel, so that the weight of the entire floor heating panel can be reduced, and the cost can be further reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a floor structure of a building to which a first embodiment of a floor heating panel according to the present invention is applied.

FIG. 2 is a longitudinal sectional view showing the floor heating panel of FIG. 1;

FIG. 3 is a plan view showing a part of the floor heating panel of FIG. 2 in a cutaway manner.

FIG. 4 is a side view showing a part of the floor heating panel of FIG. 2 in a cutaway manner.

FIG. 5 is a longitudinal sectional view showing a second embodiment of the floor heating panel according to the present invention.

FIG. 6 is a plan view showing a part of the floor heating panel of FIG. 5 in a cutaway manner.

FIG. 7 is a side view showing a part of the floor heating panel of FIG. 5 in a cutaway manner.

FIG. 8 is a longitudinal sectional view showing a conventional floor heating panel.

[Explanation of symbols]

 Reference Signs List 20 floor heating panel 21 floor 22 joist 23 panel body 25 heating fluid conduit 26 kraft paper (sheet, release sheet) 27 urethane foam resin (heat insulating filler) 30 claw (fall prevention member) 32 molding die 34 bottom 35 side surface part 35A inclined surface 40 floor heating panel 41 rubber sheet (elastic sheet) 41A inclined surface

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shinichiro Yanagida 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Inside Sanyo Electric Co., Ltd. (72) Hiromi Fujio 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Norifumi Monma 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L070 AA02 BD02 BD03 BD07 BD20 DD02 DE05 DG04

Claims (6)

[Claims] 1. A floor heating panel disposed between joists constituting a floor of a building and dissipating heat on a floor surface, comprising: a heating fluid conduit for introducing a heating fluid; While arranging, a panel body provided with flange portions on both side edges that can be hooked on the joist upper surface, and filled and molded on the back surface side of the panel body, and fixed to the back surface of the panel body, A floor heating panel comprising: a heat insulating filler for burying the heating fluid conduit. 2. The floor heating panel according to claim 1, wherein a sheet is fixedly provided on an outer surface of the heat insulating filler. 3. The deformable release sheet interposed between the heat-insulating filler and the molding die when the heat-insulating filler is molded by a molding die. The floor heating panel according to claim 2. 4. The floor heating panel according to claim 2, wherein the sheet is a deformable elastic sheet made of an elastic material. 5. The floor heating device according to claim 1, wherein a claw-shaped falling-off prevention member embedded in a heat-insulating filler is vertically provided on a back surface of the panel body. panel. 6. A side surface portion of the heat-insulating filler in which the heating fluid conduit is embedded has an inclined surface which expands and inclines toward the panel main body side. A floor heating panel according to any one of the above.