JP3819594B2 - Floor heating panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor heating panel disposed between joists constituting a floor of a building.
[0002]
[Prior art]
In recent years, floor heating has been widely used in general wooden buildings because a comfortable heating effect can be realized without excessively increasing the room temperature by keeping the floor surface at an appropriate temperature.
[0003]
As an apparatus used for such floor heating, a floor heating panel disposed between a plurality of joists constituting a floor is published in Japanese Utility Model Publication No. 7-42006. FIG. 8 shows a floor heating panel 10 disclosed in the above publication.
[0004]
In this floor heating panel 10, a heating fluid conducting pipe 12 that guides the heating fluid is adhered and fixed to the back surface of the panel body 11, flange portions 13 are formed on both side edges of the panel body 11, and side plate portions are formed. 14 is integrally suspended, a heat insulating sheet 15 is fixed to a lower end portion of the side plate portion 14, and a space surrounded by the panel body 11, the side plate portion 14 and the heat insulating sheet 15 is filled with a heat insulating filler 16. Is done.
[0005]
Both flange portions 13 of the panel body 11 are hooked on the upper surface of the floor joists 17, and the floor heating panel 10 is mounted between the joists 17. At this time, the urethane sheet 18 affixed to the outside of the both side plate portions 14 of the panel body 11 is elastically deformed, and a dimensional error or the like of the joist 17 interval is absorbed. And the heat | fever of the heating fluid which flows through the heating fluid conduction pipe | tube 12 of the panel main body 11 is dissipated on a floor surface via the panel main body 11, and the room is heated.
[0006]
[Problems to be solved by the invention]
As described above, the floor heating panel 10 includes a panel body 11 and side plate portions 14 made of a metal plate, and a heat insulating sheet 15 made of an aluminum sheet to form a box structure for foam filling the heat insulating filler 16. As a result, the weight of the floor heating panel 10 as a whole increases and the cost also increases.
[0007]
Moreover, since the urethane sheet 18 is affixed to the outside of the side plate portion 14 before and after the filling process of the heat insulating filler 16, the manufacturing process of the floor heating panel 10 becomes complicated.
[0008]
The subject of this invention is made in view of the above-mentioned situation, and is providing the panel for floor heating which can implement | achieve weight reduction and cost reduction.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 is a floor heating panel that is disposed between joists constituting a floor of a building and dissipates heat on the floor surface, and a heating fluid conducting pipe that guides the heating fluid, and a rectangular flat portion A flange body that can be hooked on the upper surface of the joist is formed on both side edge portions of the flat portion, and the heating fluid conducting pipe is disposed on the back surface of the flat portion, and the panel main body filled on the back side is fixed by Rukoto is molded to the back surface of the panel body, and a heat-insulating filler for burying the heating fluid conduit, the rear surface of the panel body, the vertical portion and the vertical portion A claw-shaped drop-off prevention member having a horizontal part bent at the lower end is suspended, and the claw-shaped drop-off prevention member has both the vertical part and the horizontal part embedded in the heat insulating filler. is that a structure that
[0010]
The invention according to claim 2 is the invention according to claim 1, wherein a sheet is fixedly provided on the outer surface of the heat insulating filler.
[0011]
The invention according to claim 3 is the invention according to claim 2, wherein the sheet is deformed between the heat insulating filler and the mold when the heat insulating filler is formed by a mold. It is a flexible release sheet.
[0012]
The invention according to claim 4 is the invention according to claim 2 or 3, wherein the sheet is a deformable elastic sheet made of an elastic material.
[0013]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the side surface portion of the heat insulating filler in which the heating fluid conducting pipe is embedded is expanded and inclined toward the panel body side. An inclined surface is formed .
[0014]
[0015]
The invention described in claim 1 has the following action. The heat insulating filler fixed to the back surface of the panel main body is formed using a mold disposed on the back surface side of the panel main body. For this reason, since it is not necessary to integrally provide a box structure made of a metal plate or a resin plate for forming the heat insulating filler on the back side of the panel body, the overall weight of the floor heating panel can be reduced. And cost can be reduced. Further, a claw-shaped drop-off preventing member having a vertical portion and a horizontal portion formed by bending the lower end of the vertical portion inward is suspended from the back surface of the panel body, and the claw-shaped drop-off preventing member is Since both the horizontal part and the horizontal part are embedded in the heat insulating filler, after the heat insulating filler is formed, the heat insulating filler is bitten into the heat insulating filler to ensure that the heat insulating filler is detached from the panel body. Can be prevented. The invention according to claim 2 has the following effects. 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 the construction of the floor heating panel. The invention according to claim 3 has the following effects. Since the sheet is a release sheet interposed between the heat insulating filler and the mold, the heat insulating filler can be easily detached from the mold at the time of forming the heat insulating filler. Furthermore, since the release sheet is fixedly attached to the outer surface of the heat insulating filler during the process of forming the heat insulating filler, the release sheet breaks the heat insulating filler during or during the construction of the floor heating panel. Can be prevented.
[0016]
The invention according to claim 4 has the following effects. Since the sheet is an elastic sheet made of an elastic material, the impact can be absorbed by its elasticity, so that it is possible to satisfactorily prevent the heat insulating filler from being damaged during or during the construction of the floor heating panel. Further, due to elastic deformation of the elastic sheet, even if there is a dimensional error in the joist spacing or the joist is distorted, a part of the elastic sheet is deformed, crushed or peeled off, and the floor heating panel and joist Can be satisfactorily adhered.
[0017]
The invention according to claim 5 has the following effects. 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. It can be easily detached from.
[0018]
Furthermore, when the floor heating panel is installed in the joists, even if there is a dimensional error in the joist spacing or a joist distortion, a part of the inclined surface is deformed, crushed or peeled off, and the floor heating panel is removed. It can be easily inserted between the joists, and the adhesion between the joists and the floor heating panel can be improved.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0020]
(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.
[0021]
As shown in FIG. 1, the floor heating panel 20 is disposed between joists 22 constituting a floor 21 of a building, particularly a wooden house, and a finished floor material 24 such as a flooring board is fixed to the upper surface of the panel body 23. Then, heat is dissipated onto the finished floor material 24 to heat the room.
[0022]
As shown in FIGS. 2 to 4, the floor heating panel 20 includes the panel main body 23, the heating fluid conducting pipe 25, craft paper 26 as a sheet and a release sheet, and urethane foam resin 27 as a heat insulating filler. It is configured.
[0023]
The panel main body 23 is made of a metal plate such as a steel plate, and is suspended from the flat portion 28 having a rectangular shape, flange portions 29 provided on both side edges extending in the longitudinal direction of the flat portion 28, and the flat portion 28. And a claw portion 30 as a drop-off prevention member.
[0024]
In other words, the panel main body 23 is folded inward on both sides of a single metal plate cut into a rectangular shape so that the back surfaces are in close contact with each other, and the middle of the bent portion is folded vertically, and the lower end of the folded vertical portion The flat portion 28 is formed by the central portion of the metal plate, the flange portion 29 is formed by the folded overlap portion, the folded vertical portion, and the horizontal bent portion (the horizontal portion) at the lower end thereof. Thus, the L-shaped claw-shaped claw portions 30 are respectively formed. Further, the flange portion 29 is provided in a constant width shape, and is configured to be hooked on the upper surface of the joist 22.
[0025]
The heating fluid conducting tube 25 is made of a metal tube with good heat conductivity, such as a copper tube, and guides a heating fluid such as hot water so that it can circulate. The heating fluid conducting tube 25 is fixed in close contact with the back surface of the flat portion 28 of the panel body 23 using a fixing tape such as an aluminum tape 31.
[0026]
The urethane foam resin 27 is molded and fixed to the back side of the flat portion 28 of the panel body 23 using a molding die 32. The mold 32 has a substantially rectangular parallelepiped concave surface portion 33 having an upper opening. The panel body 23 to which the heated fluid conducting tube 25 is fixed is placed on the mold 32 so as to cover the upper opening of the concave surface portion 33, and a foamed resin such as liquid urethane is injected into the concave surface portion 33. And filling and foaming to form the urethane foam resin 27. As a result, as shown in FIG. 2, both the vertical portion and the horizontal portion of the heated fluid conducting tube 25 and the claw portion 30 are embedded in the urethane foam resin 27.
[0027]
The urethane foam resin 27 functions as a heat insulating material, and when the heating fluid circulates in the heating fluid conduction pipe 25 of the floor heating panel 20, the heat of the heating fluid is lowered to the lower side of FIG. It is prevented from being diffused and efficiently diffused upward in FIG. 2 of the floor heating panel 20.
[0028]
When the urethane foam resin 27 is molded, a deformable kraft paper 26 is disposed in the concave surface portion 33 of the mold 32, and the kraft paper 26 is filled with a foaming resin. The kraft paper 26 is disposed at positions corresponding to the bottom surface 33A and the long side surfaces 33B of the concave surface portion 33 of the mold 32. After the urethane foam resin 27 is molded, the urethane foam resin 27 is removed from the mold 32. Release easily. Further, the kraft paper 26 is integrally fixed to the outer surface of the bottom surface portion 34 and both side surface portions 35 of the urethane foam resin 27 after the molding of the urethane foam resin 27, thereby preventing the urethane foam resin 27 from being peeled off.
[0029]
In addition, an inclined surface is formed on both long side surfaces 33B of the concave surface portion 33 of the mold 32, whereby an inclined surface 35A is formed on both side surface portions 35 of the urethane foam resin 27. The inclined surface 35A is formed so as to expand toward the panel body 23 side.
[0030]
Further, as shown in FIGS. 3 and 4, the panel body 23 is provided with end face plates 37 suspended from both end portions of the flat portion 28 facing each other in the longitudinal direction. The end face plate 37 is formed from a metal plate such as a steel plate and includes a U-shaped groove 38 through which the heating fluid conducting tube 25 passes. At the time of molding the urethane foam resin 27, both end surface portions 36 of the urethane foam resin 27 are integrally fixed to the end surface plate 37. The end face plate 37 protects the flammable urethane foam resin 27 from the flame during welding when the heated fluid conducting pipe 25 is butt welded to connect the plurality of floor heating panels 20 in the longitudinal direction. is there.
[0031]
Therefore, according to the said embodiment, there exist the following effects (1)-(6).
[0032]
(1) The molding of the urethane foam resin 27 fixed to the back surface of the panel body 23 is performed using a molding die 32 disposed on the back surface side of the panel body 23. For this reason, the box structure (the panel main body 11, the side plate part 14, and the heat insulating sheet 15 in FIG. 8) for forming the urethane foam resin 27 is integrally formed on the back side of the panel main body 23. Therefore, it is possible to reduce the weight of the floor heating panel 20 as a whole, and to further reduce the cost.
[0033]
(2) Since the kraft paper 26 is interposed between the urethane foam resin 27 and the mold 32, the urethane foam resin 27 can be easily detached from the mold 32 when the urethane foam resin 27 is molded. .
[0034]
(3) In the molding process of the urethane foam resin 27, the kraft paper 26 is fixedly provided on the outer surface of the bottom surface portion 34 and the side surface portion 35 of the urethane foam resin 27. In addition, the kraft paper 26 can prevent the urethane foam resin 27 from being damaged.
[0035]
(4) Since the L-shaped claw-shaped claw portion 30 embedded in the urethane foam resin 27 is suspended on the back surface of the panel body 23, the claw portion 30 is expanded after the urethane foam resin 27 is molded. It is possible to reliably prevent the urethane foam resin 27 from being detached from the panel main body 23 by being inserted into the resin 27.
[0036]
(5) Since both sides 35 of the urethane foam resin 27 are formed with inclined surfaces 35A that expand toward the panel body 23 side, the urethane foam resin 27 is formed into a mold when the urethane foam resin 27 is molded. It can be more easily detached from 32.
[0037]
(6) When the floor heating panel 20 is mounted between the joists 22 of the floor 21, even if there is a dimensional error in the joists 22 interval or distortion of the joists 22, a part of the inclined surface 35 </ b> A is deformed and remains or It peels and the floor heating panel 20 can be easily inserted between the joists 22, and the adhesiveness between the joists 22 and the floor heating panel 20 can be enhanced. Therefore, like the conventional floor heating panel 10 shown in FIG. 8, the urethane sheet 18 for sticking the floor heating panel 10 to the joists is pasted on the both side plate portions 14 of the floor heating panel 10 in a subsequent process. There is no need, and the manufacturing process of the floor heating panel 20 of the present embodiment can be simplified and speeded up.
[0038]
(B) Second Embodiment FIG. 5 is a longitudinal sectional view showing a second embodiment of the floor heating panel according to the present invention. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0039]
In the floor heating panel 40 of the second embodiment, a rubber sheet 41 as an elastic sheet is fixed to the bottom surface portion 34 and both side surface portions 35 of the urethane foam resin 27, and kraft paper is attached to the outer surface of the rubber sheet 41. 26 is fixed.
[0040]
When the urethane foam resin 27 is molded using the molding die 32, the kraft paper 26 is disposed on the bottom surface 33A and the long side surfaces 33B of the concave surface portion 33 of the molding die 32, and the deformable rubber on the kraft paper 26 is provided. A sheet 41 is disposed. Then, a foaming resin such as liquid urethane is filled inside the rubber sheet 41. After the molding of the urethane foam resin 27, the rubber sheet 41 is integrally fixed to the outer surface of the bottom surface portion 34 and both side surface portions 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.
[0041]
After the urethane foam resin 27 is molded, inclined surfaces 35A are formed on both side surface portions 35, and therefore the inclined surface 41A is also formed on the rubber sheet 41 corresponding to the outer surface of the side surface portion 35.
[0042]
Therefore, according to this floor heating panel 40, the same effects as the effects (1) and (4) of the floor heating panel 20 can be obtained, and the following effects (7), (8), (9) and (10) is also played.
[0043]
(7) Since the rubber sheet 41 is fixed to the bottom surface portion 34 and the both side surface portions 35 of the urethane foam resin 27, the impact can be absorbed by its elasticity, so that the urethane foam is applied during or during the construction of the floor heating panel 20. Damage to the resin 27 can be prevented satisfactorily.
(8) Due to the elastic deformation of the rubber sheet 41, even if there is a dimensional error in the joist 22 interval of the floor 21 or the joist 22 is distorted, a part of the inclined surface 41A of the rubber sheet 41 is deformed and remains, Or it peels and the panel 40 for floor heating and the joist 22 can be made to adhere | attach favorably. Therefore, unlike the prior art shown in FIG. 8, it is not necessary to attach the urethane sheet 18 to the both side plates 14 of the floor heating panel 10 in a subsequent process, and the manufacturing process of the floor heating panel 40 can be simplified and speeded up.
[0044]
(9) Since the kraft paper 26 is interposed between the rubber sheet 41 and the mold 32, the rubber sheet 41 can be easily detached from the mold 32 together with the urethane foam resin 27 when the urethane foam resin 27 is molded. Can do.
[0045]
(10) Since both sides 35 of the urethane foam resin 27, that is, both sides of the rubber sheet 41, are formed with inclined surfaces 41 </ b> A that expand toward the panel body 23, when molding the urethane foam resin 27, This urethane foam resin 27 can be more easily detached from the mold 32.
[0046]
As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this.
[0047]
For example, the claw portion 30 may be fixed to the back surface of the flat portion 28 in the panel body 23 by welding. Moreover, a mold release agent may be interposed instead of the kraft paper 26. In addition to the inclined surface 35 </ b> A of the floor heating panel 20 and the inclined surface 41 </ b> A of the floor heating panel 40, an inclined surface that expands toward the panel body 23 may be formed on the end surface plate 37. Moreover, you may form a heat insulation filler with foamed resin other than urethane foamed resin.
[0048]
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]
【The invention's effect】
As described above, according to the floor heating panel according to the present invention, the panel main body is provided with the heating fluid conducting pipes on the back surface, the flange portions that can be locked to the upper surface of the joists on both side edges, and the heat insulating filler. However, since the back side of the panel body is filled and molded, and fixed to the back side of the panel body and the heating fluid conducting tube is embedded, a heat insulating filler is formed on the back side of the panel body. Since it is not necessary to integrally provide a box structure made of a metal plate or a resin plate, the weight of the entire floor heating panel can be reduced, and the cost can be reduced. Further, a claw-shaped drop-off preventing member having a vertical portion and a horizontal portion formed by bending the lower end of the vertical portion inward is suspended from the back surface of the panel body, and the claw-shaped drop-off preventing member is Since both the horizontal part and the horizontal part are embedded in the heat insulating filler, after the heat insulating filler is formed, the heat insulating filler is bitten into the heat insulating filler to ensure that the heat insulating filler is detached from the panel body. Can be prevented.
[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.
3 is a plan view showing a part of the floor heating panel in FIG. 2 in a cutaway manner. FIG.
4 is a side view in which a part of the floor heating panel in FIG. 2 is broken away.
FIG. 5 is a longitudinal sectional view showing a second embodiment of a floor heating panel according to the present invention.
6 is a plan view showing a part of the floor heating panel of FIG.
7 is a side view showing a part of the floor heating panel in FIG.
FIG. 8 is a longitudinal sectional view showing a conventional floor heating panel.
[Explanation of symbols]
20 Floor heating panel 21 Floor 22 joist 23 Panel body 25 Heated fluid conduit 26 Kraft paper (sheet, release sheet)
27 Urethane foam resin (insulation filler)
30 Claw (drop-off prevention member)
32 Mold 34 Bottom surface 35 Side surface 35A Inclined surface 40 Floor heating panel 41 Rubber sheet (elastic sheet)
41A inclined surface

Claims (5)

In the floor heating panel that is arranged between the joists constituting the floor of the building and dissipates heat on the floor surface,
A heating fluid conducting tube for guiding the heating fluid;
A flange having a rectangular flat portion and flange portions that can be hooked on the upper surface of the joist are formed at both side edges of the flat portion, and the heating fluid conducting pipe is disposed on the back surface of the flat portion ; ,
Is fixed to the rear surface of the back filled are molded into side panel body by Rukoto of the panel body, and a heat-insulating filler for burying the heating fluid conduit,
A claw-shaped drop-off preventing member having a vertical portion and a horizontal portion in which a lower end of the vertical portion is bent inward is suspended from the back surface of the panel body, and the claw-shaped drop-off preventing member A floor heating panel characterized in that both the part and the horizontal part are embedded in the heat insulating filler .   The floor heating panel according to claim 1, wherein a sheet is fixedly provided on an outer surface of the heat insulating filler.   The said sheet | seat is a deformable mold release sheet interposed between the said heat insulation filler and the said shaping | molding die, when shape | molding a heat insulation filler with a shaping | molding die. Floor heating panel.   The floor heating panel according to claim 2 or 3, wherein the sheet is a deformable elastic sheet made of an elastic material. 5. The inclined surface that is expanded and inclined toward the panel body side is formed on a side surface portion of the heat insulating filler that embeds the heating fluid conducting pipe. Floor heating panel.

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