JP2000104936A - Panel for floor heating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel for floor heating to reduce weight and cost. SOLUTION: A heating fluid ducting pipe 25 is provided to guide heating fluid to the surface side of a surface steel plate 28 spanning between floor joists for a building floor. Flange parts 29 hooked on the upper surface of the floor joist are arranged at the edge parts on both sides of the surface steel plate 28. A heat insulation filler 27, with which the back side of the surface steel plate 28 is filled and which is molded and fixed on the back of the surface steel plate 28 and in which a heating fluid conducting pipe 25 is embedded, is arranged. The inner end of the flange part 29 is extended in the internal part of the heat insulation filler 27 for embedding, and an impact buffering material 40 is stuck on the outer surface of the heat insulation filler 27.

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 In general, floor heating panels which are arranged between joists constituting a floor of a building and dissipate heat on the floor are known. Floor heating is widely used in general wooden buildings in recent years because a comfortable heating effect can be realized without excessively increasing the indoor temperature by maintaining the floor surface at an appropriate temperature.

[0003]

Normally, this type of floor heating panel is disposed between joists constituting the floor of a building. However, in view of easiness of construction and widespread use in the public, etc. It is desired to reduce the weight, absorb the dimensional error between the joists, or reduce the cost.

[0004] It is an object of the present invention to provide a floor heating panel capable of realizing weight reduction, improvement in dimensional error absorption between joists, and cost reduction.

[0005]

According to the first aspect of the present invention,
In a floor heating panel arranged between joists constituting a floor of a building and dissipating heat on a floor surface, a heating fluid conducting pipe for guiding a heating fluid to a back surface side of a front steel plate spanned between the joists is provided. A flange portion that can be hooked on the upper surface of the joist is provided on both side edges of the surface steel plate, and is filled and molded on the back surface side of the surface steel plate. A heat insulating filler is provided for embedding, and the inner end of the flange portion is extended and buried inside the heat insulating filler, and an impact buffer is stuck on the outer surface of the heat insulating filler. Things.

According to a second aspect of the present invention, in the first aspect, a sheet is fixedly provided on a lower 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. It is characterized in that the release sheet is deformable.

According to a fourth aspect of the present invention, in the one of the first to third aspects, a claw-shaped falling-off preventing member embedded in a heat insulating filler is provided at an inner end of the flange portion. Are formed.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the side surface of the shock-absorbing material has an inclined surface expanding toward the surface steel plate. Are formed.

The invention described in claim 1 has the following operation.

The molding of the heat-insulating filler material fixed to the back surface of the panel body is performed by using a mold provided on the back surface side of the panel 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 construction of the floor heating panel.

The third aspect of the invention 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. .

Further, in the process of forming the heat-insulating filler, the release sheet is fixedly provided on the outer surface of the heat-insulating filler. Material damage can be prevented.

The invention described in claim 4 has the following operation.

Since a claw-shaped falling-off preventing member embedded in the heat-insulating filler is vertically provided on the back surface of the panel body, the falling-off preventing member cuts into the heat-insulating filler after the heat-insulating filler is formed. It is possible to reliably prevent the heat insulating filler from detaching from the panel body.

The fifth aspect of the invention has the following operation.

The side surface of the shock-absorbing material, that is, the side surface of the floor heating panel, is formed with an inclined surface that expands toward the surface steel plate, so that the floor heating panel can be attached to the joist. , Even if there is a dimensional error in joist spacing or joist distortion,
Part of the slope is deformed, crushed, or peeled,
The floor heating panel can be easily fitted into the joist, and the adhesion between the joist and the floor heating panel can be improved.

[0021]

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

FIG. 1 is a longitudinal sectional view showing a floor structure of a building to which an 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 wooden house or the like.
A finishing floor 24 such as a flooring plate is fixed to the upper surface of the panel body 23, and heat is dissipated on the finishing floor 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.
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 main body 23 is made of a metal plate such as a steel plate, and has a rectangular surface steel plate 28, and flange portions 29 provided on both side edges of the surface steel plate 28 extending in a longitudinal direction of the surface steel plate 28.
And a claw portion 30 as a fall-prevention member which is vertically provided from the surface steel plate 28.

That is, the panel body 23 is formed by bending both sides of a single 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 to be formed, the surface steel plate 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 vertical portion. , L-shaped claw portions 30 are formed respectively.

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 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 adhered to the back surface of the front steel plate 28 of the panel main body 23 in a tight contact state using a fixing tape such as an aluminum tape 31.

The urethane foam resin 27 is molded and fixed to the back side of the front steel plate 28 of the panel main body 23 by using a molding die 32. As shown in FIG. 2, the molding die 32 has a substantially rectangular parallelepiped concave surface portion 33 that is open at the top. The panel body 23 to which the heating fluid conducting pipe 25 is fixed is placed on the molding die 32 so as to cover the upper opening of the concave portion 33, and the rubber sheet 40 as an impact cushioning material is placed on the concave portion 33. A foamed resin such as liquid urethane is injected into a space surrounded by the rubber sheet 40 and the surface steel sheet 28, filled and foamed to form a urethane foamed resin 27.

According to this, the claw portion 30 constituting the inner end of the heating fluid conducting tube 25 and the flange portion 29 is embedded in the urethane foam resin 27.

In this embodiment, the claw portion 30 extends in the vertical direction once and then in the horizontal direction. The claw portion 30 only needs to be able to prevent the urethane foam resin 27 from peeling off from the surface steel plate 28. For example, as shown in FIG. 5, the claw portion 30 is once at a predetermined angle θ (for example, θ = about 30 ° C.).
It may be formed so as to extend obliquely inside the urethane foam resin 27 and then extend horizontally.

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.

When 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.
The rubber sheet 40 is disposed inside the kraft paper 26 as described above, and the rubber resin 40 is filled inside the rubber sheet 40. The kraft paper 26 is disposed at a position corresponding to the bottom surface 33A and the long side surfaces 33B of the concave portion 33 of the molding die 32. After the urethane foaming resin 27 is molded, the urethane foaming resin 27 is
From the mold easily.

Further, the kraft paper 26 is integrally fixed to the bottom surface 34 of the urethane foam resin 27 and the outer surface of the rubber sheet 40 after the molding of the urethane foam resin 27,
The peeling of the urethane foam resin 27 and the rubber sheet 40 is prevented.

Also, inclined surfaces are formed on the long side surfaces 33B of the concave portion 33 of the molding die 32, thereby forming inclined surfaces 35A on both side portions 35 of the rubber sheet 40. The inclined surface 35A is formed so as to expand toward the surface steel plate 28 side of the panel main body 23.

As shown in FIGS. 3 and 4, end panels 37 are vertically provided on the panel main body 23 at both ends of the surface steel plate 28 which are opposed to each other in the longitudinal direction. 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. And
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
Since there is no need to integrally provide a box structure or the like for molding the floor panel, the weight of the entire floor heating panel 20 can be reduced, and the cost can be reduced.

(2) Since the kraft paper 26 is interposed between the urethane foam resin 27 and the rubber sheet 40 and the molding die 32, the urethane foam resin 27 and the rubber sheet 40 are formed when the urethane foam resin 27 is formed. The mold 32
Can be easily detached from.

(3) In the process of molding the urethane foam resin 27, the kraft paper 26
4 and the outer surface of the rubber sheet 40 are fixedly provided, so that the kraft paper 26 can prevent the urethane foam resin 27 and the rubber sheet 40 from being damaged during or during the installation of the floor heating panel 20.

(4) Since the claw portion 30 buried in the urethane foam resin 27 is provided on the back surface of the panel body 23, the claw portion 30 is formed on the urethane foam resin 27 after the urethane foam resin 27 is formed. It is possible to reliably prevent the urethane foam resin 27 from being detached from the panel main body 23.

(5) Both sides 3 of urethane foam resin 27
5, a rubber sheet 40 is fixed to the floor heating panel 2 and the side surfaces 35 of the rubber sheet 40 are formed with inclined surfaces 35A.
0 during or during construction, the urethane foam resin 27 can be satisfactorily prevented from being damaged, and at the time of mounting the floor heating panel 20 between the joists 22 of the floor 21, there is a dimensional error in the spacing of the joists 22 and distortion of the joists 22. Even if there is, a part of the inclined surface 35A is deformed, crushed or separated, and the floor heating panel 20
Can easily be fitted between the joists 22 and the adhesion between the joists 22 and the floor heating panel 20 can be improved.

(6) Since the rubber sheet 40 is fixed simultaneously with the filling of the urethane foam resin 27, the rubber sheet 40
Need not be attached in a subsequent step, and the manufacturing process of the floor heating panel 20 can be simplified and speeded up.

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

For example, the claw portion 30 may be fixed to the back surface of the front steel plate 28 in the panel main body 23 by welding. Further, not only the inclined surface 35A of the floor heating panel 20 but also the end surface plate 37 may be formed with an inclined surface that expands toward the panel body 23 side. Further, the heat insulating filler may be formed of a foamed resin other than the urethane foamed resin. Further, both sides 35 of the rubber sheet 40 have inclined surfaces 35A.
Is formed, but is not limited to this.
0, that is, both sides of the panel body 23 may be constituted by vertical walls.

[0045]

According to the present invention, a heating fluid conducting pipe for guiding a heating fluid is provided on the back side of the front steel plate spanned between the joists, and the flanges which can be hooked on the upper surface of the joists are formed on both side edges of the front steel plate. Is provided on the back side of the front steel plate, is molded, is fixed to the back surface of the front steel plate, and is provided with an insulating filler for burying the heating fluid conduit. Since the end is extended and buried, and the shock-absorbing material is stuck on the outer surface of the heat-insulating filler, it is necessary to integrally provide a box structure for molding the heat-insulating filler on the back side of the front steel plate. Therefore, the weight and cost of the floor heating panel as a whole can be reduced.

[Brief description of the drawings]

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

[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) 28 surface steel plate 29 flange portion 30 claw portion (drop-off prevention member) 32 Mold 34 Bottom part 35 Side part 35A Inclined surface 40 Impact buffer (rubber sheet)

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Shinichiro Yanagida 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor 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 BD02 BD05

Claims (5)

[Claims] 1. A floor heating panel disposed between joists constituting a floor of a building and dissipating heat on the floor surface, wherein a heating fluid for guiding a heating fluid to a back side of a front steel plate bridged between the joists. A fluid conduit is provided, flange portions that can be hooked on the joist upper surface are provided on both side edges of the surface steel plate, the back surface side of the surface steel plate is filled and molded, and fixed to the back surface of the surface steel plate. A heat-insulating filler for embedding the heating fluid conduit was provided, the inner end of the flange portion was extended and buried inside the heat-insulating filler, and an impact buffer was attached to the outer surface of the heat-insulating filler. A floor heating panel, characterized in that: 2. The floor heating panel according to claim 1, wherein a sheet is fixedly provided on a lower surface of the heat insulating filler. 3. The deformable release sheet interposed between the heat-insulating filler and the mold when the heat-insulating filler is molded by a molding die. 3. The floor heating panel according to 2. 4. A claw-shaped falling-off prevention member embedded in a heat insulating filler is formed at an inner end of the flange portion. Floor heating panel. 5. The impact cushioning material according to claim 1, wherein an inclined surface expanding toward the surface steel plate is formed on a side surface of the shock absorbing material. Floor heating panel.