JP4191060B2 - Floor heating panel - Google Patents

Description

  The present invention relates to a floor heating panel.

  Conventionally, a floor heating panel laid in a house for the purpose of improving habitability is configured by connecting a plurality of base panels into which hot water pipes for passing hot water are fitted, and the surface of these base panels is made of metal. A heat dissipation sheet is attached. And between adjacent base panels can be folded as a folding line. Such a floor heating panel is folded when being transported or stored, and is unfolded from the folded state and laid on the floor of a house when being constructed.

This type of foldable floor heating panel has a flexible hot water pipe that is continuously routed from one base panel to the other base panel across the folding line, so the floor heating panel is folded. If this happens, the hot water pipe may be bent, crooked or crushed in the folding line. Therefore, what is shown in patent document 1 is known as a floor heating panel which eliminates these faults. That is, as shown in FIG. 21, the floor heating panel 51 has a piping groove 52 formed on the surface of the base panel s 54, and the hot water pipe 53 that crosses the folding line L has a connecting portion 53 a that matches the folding line L. The pipe is linearly arranged with a predetermined length at the position.
JP 2003-227620 A

  However, in the conventional floor heating panel 51, if the transition portion 53a of the hot water pipe 53 is shortened, the hot water pipe 53 may be bent at an acute angle when the floor heating panel 54 is folded, so that there is a risk that buckling will occur. For this purpose, the above-described transition portion 53a is provided. However, if this is done, the arrangement interval of the hot water pipes 53 in the transition portion 53a is wider than in places other than the transition portion 53a. For this reason, the so-called cold spot S, in which the piping density of the hot water pipe 53 is partially low, tends to appear, and temperature unevenness on the floor heating panel surface tends to occur.

  Further, as shown in FIGS. 22A and 22B, when the floor heating panel 51 is folded, the piping groove 52 on the folding line L is also broken, so that the hot water pipe 53 is curved in a convex shape. 54 protrudes outside. For this reason, when the floor heating panel 51 is transported or stored, the transition portion 53a of the hot water pipe 53 may be rubbed and damaged.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a floor heating panel that can prevent a cold spot from appearing and prevent a heat source pipe from being damaged.

In the first aspect of the present invention, a piping groove into which a flexible heat source pipe is fitted is formed on the surface of a plurality of adjacent base panels, and the piping groove is formed between adjacent base panels. In the floor heating panel formed so as to cross the folding line located at the boundary, an oblique portion that obliquely intersects with the folding line is formed at a location across the folding line of the piping groove, to form a pipe restraining portions located on both sides away from the folding line, an opening to allow deformation of the heat source pipe between the pipes restraining section are formed on one side of the opening in the pipe groove, the The gist is that an inclined surface is formed in which the width dimension of the open portion decreases toward the bottom wall .

According to this configuration, when the floor heating panel is folded in a valley so that the surfaces of the adjacent base panels overlap, the heat source pipe is constrained at both ends of the open portion and constrained at the portion accommodated in the open portion. Therefore, a twisting force is effectively applied to the heat source pipe in the open portion. Thereby, it is suppressed that a heat source pipe curves greatly to the outside of a base panel. Furthermore, since the oblique portion provided in the piping groove intersects the line without extending along the folding line, the arrangement interval of the heat source pipes does not increase, and the piping density of the hot water pipe 53 is reduced. A drop can be prevented, and a cold spot does not appear. In addition, when the floor heating panel is folded, a part of the heat source pipe in the folded portion is curved, but the inclined surface can prevent the curved portion from interfering with the base panel.

The gist of the invention described in claim 2 is that the opening portion extends between adjacent base panels.
With this configuration, since only one of the adjacent base panels has no open portion, it is possible to prevent the strength of each adjacent base panel from becoming unbalanced.

The invention according to claim 3 is characterized in that the oblique portions are formed in two strips and arranged in parallel.
With this configuration, the pipe density of the hot water pipe 53 can be further increased.

The gist of the invention according to claim 4 is that the opening portion is formed outside the two oblique portions.
With this configuration, when the floor heating panel is valley-folded, the open portion is cracked and a part of the heat source pipe is accommodated therein. Thereby, a twisting force can be more effectively applied to the heat source pipe in the open portion.

The gist of the invention described in claim 5 is that the open portion is formed so that the bottom wall thereof is removed.
According to this configuration, when the floor heating panel is folded in a mountain so that the back surfaces of the adjacent base panels overlap, the heat source pipe passes through the first notch and the second notch. Therefore, when the floor heating panel is folded in a mountain fold, the heat source pipe does not come out from the end face of each base panel.

The gist of the invention described in claim 6 is that a metal heat dissipating sheet is attached to the surface of the base panel to close the piping groove. With this configuration, the heat equalizing effect is enhanced by the heat from the heat source pipe being radiated through the heat radiating sheet.

  According to the present invention, it is possible to prevent the appearance of a cold spot, and it is possible to prevent the heat source pipe from being damaged because the heat source pipe does not protrude from the base panel even when folded.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
In this embodiment, as shown in FIGS. 1 and 2, the floor heating panel 11 includes a plurality of (three) base panels 12a, 12b, and 12c having a rectangular shape. A plurality of parallel meandering piping grooves 13 are formed on the surface of each base panel 12a, 12b, 12c, and a flexible synthetic resin hot water pipe (heat source pipe) is formed in the piping grooves 13. 14 is fitted. On the entire surface of the base panels 12a, 12b, 12c, a heat radiating sheet 15 made of a metal thin film having excellent thermal conductivity, for example, an aluminum alloy thin film, is stuck so as to close the piping groove 13, and the heat from the hot water pipe 14 is Is uniformly transmitted to the entire floor heating panel 11 through the heat dissipation sheet 15. And with this floor heating panel 11 laid on the slab of the house and below the interior material such as flooring, the hot water is circulated and supplied into the hot water pipe 14, so that the flooring is warmed and the interior of the house Is supposed to be heated.

  The floor heating panel 11 can be folded along a folding line between the base panels 12a, 12b, and 12c (two in this embodiment). One folding line is a valley fold line L1 in which the surface of the base panel 12a on the left side of the figure and the surface of the base panel 12b in the middle are folded in a direction in which they approach each other. The other folding line is a mountain fold line L2 in which the back surface of the base panel 12b in the middle part and the back surface of the base panel 12c on the right side in the drawing are folded in a direction approaching each other.

  The base panel 12a located on the left side and the base panel 12b located in the middle are folded along the valley fold line L1 with the heat dissipation sheet 15 as a hinge. Therefore, the heat dissipation sheet 15 extends between the adjacent base panels 12a and 12b and is connected on the valley fold line L1. On the other hand, the base panel 12b located in the middle part and the base panel 12c located on the right side are connected by a joining sheet 16 adhered to the back surfaces of both the base panels 12b and 12c, and this joining sheet 16 is used as a hinge. It is folded along the mountain fold line L2. Therefore, the heat radiation sheet 15 is divided along the mountain fold line L2. Each of the base panels 12a, 12b, and 12c is configured by connecting a plurality of types of parts having different areas, and in this embodiment, the hot water pipe 14 that crosses the valley fold line L1 and the mountain fold line L2. Only the parts P to be piped are shown.

Next, the main part will be described. First, the structure of the valley fold part of the floor heating panel 11 is demonstrated.
As shown in FIGS. 3 and 4, the pipe groove 13 is formed on the surface of the base panel (one base panel) 12 a on the left side of the floor heating panel 11 and the base panel (the other base panel) 12 b in the middle. Is continuously formed so as to cross the valley fold line L1. In the present embodiment, in a state where the base panels 12a and 12b are deployed, a parallel set of two pipe grooves 13 obliquely cross the valley fold line L1.

  That is, the crossing part 17 which makes the 2 row | line which crosses with respect to the same valley fold line L1 is formed in the location which crosses the valley fold line L1 of each piping groove | channel 13. On the outside of the oblique portion 17, there is an open portion 13 a formed between adjacent base panels 12 a to 12 c. Here, the open portion 13a is formed by recessing the surfaces of the base panels 12a to 12c so as to have a bottom wall. The reason why the open portion 13a is provided in the pipe groove 13 is to eliminate the restriction of the hot water pipe 14 by the pipe groove 13 in the open portion 13a. That is, the hot water pipe 14 is not restricted by the piping groove 13 only for the transition portion 14a in the vicinity of the valley fold line L1, and is restricted by the piping groove 13 for portions other than the transition portion 14a. In the present embodiment, a pipe restraining portion is configured by the first end portion E1 and the second end portion E2 at both ends of the opening portion 13a.

  In each piping groove 13, the first end portion E1 located at one end of the open portion 13a and the second end portion E2 located at the other end of the open portion 13a are arranged with their positions shifted in the direction of the valley fold line L1. ing. With this arrangement relationship, as shown in FIG. 5, when the floor heating panel 11 is valley-folded so that the heat dissipation sheet 15 faces inward, the center of the valley fold line L <b> 1 in the direction in which the surfaces of the base panels 12 a and 12 b approach each other. Therefore, a twisting force is applied to the transition portion 14a of the unconstrained hot water pipe 14 between the end portions E1 and E2 by the piping groove 13.

  Next, the structure of the mountain fold part of the floor heating panel 11 is demonstrated based on FIG.6, FIG.7, FIG.8. In the same figure, about the same structure as the valley folding part of the floor heating panel 11 already demonstrated, the same code | symbol is attached | subjected and description is abbreviate | omitted. The entire bottom wall of the open portion 13a of each base panel 12b, 12c located on the mountain fold line L2 is missing. That is, it can be said that the whole open part 13a of each base panel 12b, 12c is a through hole.

The floor heating panel 11 configured as described above is transported after being folded along the valley fold line L1 and the mountain fold line L2.
First, the case where the floor heating panel 11 is valley-folded will be described.

  As shown in FIG. 9, when the floor heating panel 11 in the unfolded state is folded along the valley fold line L1, as shown in FIG. 10, the surfaces of the base panels 12a and 12b are mutually connected using the heat radiation sheet 15 as a hinge. It is relatively rotated in the approaching direction. Thereby, while the open part 13a in the piping groove 13 is divided into two, the transition part 14a of the hot water pipe 14 accommodated in the open part 13a floats. That is, both end parts E1 and E2 with respect to one hot water pipe 14 approach by the relative rotation of the base panels 12a and 12b. At this time, since the hot water pipe 14 is restrained by both the end portions E1 and E2, the portion between the both end portions E1 and E2 of the hot water pipe 14 floats while being twisted. And as shown in FIG. 11, the open parts 13a which broke face each other seeing from the thickness direction of the floor heating panel 11, and the transition part 14a of the hot water pipe 14 is accommodated in the space part S formed by it. .

  Here, FIG. 12 shows the piping groove 13 of the base panels 12a and 12b in a state where the floor heating panel 11 is unfolded by a solid line, and after the floor heating panel 11 is valley-folded, on the upper side of the other base panel 12b. It is the figure which showed the piping groove | channel 13 of a certain one base panel 12a with the thick line. In this figure, for easy understanding, the hot water pipe 14, a part of the piping groove 13, and the heat radiation sheet 15 are omitted.

  As shown in FIGS. 12 and 13, in the floor heating panel 11 in the unfolded state, the end portions E1 and E2 of the open portion 13a in each piping groove 13 are arranged at positions away from the valley fold line L1. ing. Therefore, when the floor heating panel 11 is folded, both end portions E1 and E2 are located inside the end surfaces of the both base panels 12a and 12b. Therefore, the transition portion 14a of the hot water pipe 14 does not protrude from the end surfaces of both the base panels 12a and 12b.

Next, the case where the floor heating panel 11 is folded in a mountain will be described.
When the floor heating panel 11 in a state where the floor heating panel 11 is unfolded is folded along the mountain fold line L2, as shown in FIG. 14, the back surfaces of both base panels 12b and 12c approach each other using the coupling sheet 16 as a hinge. It is relatively rotated in the direction. As a result, as shown in FIGS. 15 and 16, the open portion 13 a is split into two, and the transition portions 14 a of the hot water pipes 14 accommodated in the open portion 13 a are curved to form side edges of the open portion 13 a. It is inserted into the recess formed in.

  Further, when the floor heating panel 11 is folded in a mountain, the first end portion E1 and the second end portion E2 of the piping groove 13 in each of the base panels 12b and 12c are restrained by the piping groove 13 as in the case of the valley folding. A twisting force is applied to the transition portion 14a of the hot water pipe 14 that is not. Therefore, it is suppressed that the crossing part 14a of the hot water pipe 14 which is curving by this torsional force swells outside, and the hot water pipe 14 protrudes from the end surface of both base panels 12b and 12c in the mountain fold line L2. There is nothing.

Therefore, according to the present embodiment, the following effects can be obtained.
(1) Since the two hot water pipes 14 piped to each of the base panels 12a to 12c cross the valley fold line L1 or the mountain fold line L2 obliquely in a parallel relationship, they are different from the above-described Patent Document 1. In addition, it is not necessary to design a piping in which the interval between the hot water pipes 14 is widened in the portions of the lines L1 and L2. Therefore, it can suppress that a cold spot appears.

  (2) In the open part 13a of the piping groove 13 near the valley fold line L1 or the mountain fold line L2 of each base panel 12a, 12b, the transition part 14a of the hot water pipe 14 is not restrained. For this reason, when the floor heating panel 11 is valley-folded or mountain-folded, a twisting force is applied to the transition portion 14a of the hot water pipe 14, but the twisting force can be effectively applied to the transition portion 14a. The twisting force can suppress the bending of the transition portion 14a of the hot water pipe 14 in the bulging direction, and the hot water pipe 14 can be prevented from protruding from the end surfaces of the base panels 12a and 12b. Therefore, when the floor heating panel 11 is transported or stored, it is possible to prevent the transition portion 14a of the hot water pipe 14 from rubbing against the floor surface and causing damage. Moreover, it is possible to prevent the hot water pipe 14 from being crooked or crushed by applying a twisting force to the transition portion 14 a of the hot water pipe 14. It is possible to prevent clogging and the like due to memory fixing.

  (3) The 1st end part E1 and the 2nd end part E2 of the piping groove 13 in each base panel 12a, 12b are arrange | positioned in the position away from the valley fold line L1. Therefore, when the floor heating panel 11 is folded along the valley fold line L1, both end portions E1 and E2 can be arranged on the inner side of the end surfaces of the base panels 12a and 12b. 14a does not come out of the base panels 12a and 12b.

[Second Embodiment]
In the present embodiment, the same components as those of the floor heating panel 11 in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 17 and 18, the width of the open portion 13a becomes narrower toward the bottom wall on one side surface of each open portion 13a on the surface of the base panels 12a and 12b adjacent via the valley fold line L1. Such an inclined surface 31 is formed. Further, in addition to the inclined surface 31, an inclined surface 32 that is inclined along the valley fold line L1 is formed in the vicinity of the open portion 13a on the surfaces of the base panels 12a and 12b. The inclined surface 32 is formed of the open portion 13a. Are connected continuously via a stepped portion 33 parallel to the bottom wall. The inclined surfaces 31 and 32 are drawn with hatched lines in FIGS. 17 and 18 in order to make the areas easily understood.

  Since the inclined surfaces 31 and 32 are provided on the surfaces of the base panels 12a and 12b, the base panels 12a and 12b can be partially thinned. Interference with the base panels 12a and 12b can be suppressed by causing the warm water pipe 14 that is bent when the 12b is folded to escape. Therefore, the crossover part 14a of the hot water pipe 14 becomes more difficult to be crushed, and the floor heating panel 11 can be easily folded.

[Third Embodiment]
In the present embodiment, the same components as those of the floor heating panel 11 in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 19 and 20, an inclined surface 34 is formed on one side surface of each open portion 13a on the back surface of the base panels 12a and 12b adjacent via the mountain fold line L2. Further, in addition to the inclined surface 34, an inclined surface 35 that is inclined along the mountain fold line L2 is formed in the vicinity of the open portion 13a on the back surface of the base panels 12b and 12c. In FIG. 19 and FIG. 20, similarly to the drawing shown in the second embodiment, the regions with the inclined surfaces 34 and 35 are drawn with hatched lines.

  Since the inclined surfaces 34 and 35 are provided on the back surfaces of the base panels 12b and 12c, the base panels 12b and 12c can be partially thinned. And the hot-water pipe 14 which curves when the base panels 12b and 12c are folded centering | focusing on the mountain fold line L2 can be made to escape in the thin part with one inclined surface 34. FIG. Moreover, the heat-radiating sheet 15 in which wrinkles are generated along the mountain fold line L <b> 2 can be caused to escape into the thin portion having the other inclined surface 35. Accordingly, the hot water pipe 14 and the heat radiation sheet 15 are less likely to interfere with the base panels 12b and 12c, and the floor heating panel 11 can be easily folded in a mountain.

[Example of change]
The embodiment of the present invention may be modified as follows.
In the first to third embodiments, the two hot water pipes 14 are arranged side by side so as to obliquely intersect the valley fold line L1 or the mountain fold line L2, but may be changed to one. In addition, when a plurality of hot water pipes 14 are not provided side by side, the shape of the open portion 13a of the piping groove 13 is changed to a symmetrical shape around the valley fold line L1 or the mountain fold line L2. Is possible.

  -In the said 1st-3rd embodiment, although the whole bottom wall of the open part 13a of the piping groove 13 located on the mountain fold line L2 is opened, you may make it open a part of bottom wall. .

The expanded view of the floor heating panel in 1st Embodiment. Sectional drawing which expands and shows a floor heating panel. The expanded view of the base panel which expands and shows a part of valley fold line. The perspective view of the base panel which expands and shows a part of valley fold line. The perspective view which shows the state in the middle of valley-folding a floor heating panel. The expanded view of the base panel which expands and shows a part of mountain fold line. The perspective view of the base panel which expands and shows a part of mountain fold line. The perspective view which expands and shows a part of base panel. It is AA sectional drawing shown in FIG. 3, Comprising: Sectional drawing of the state which expand | deployed the floor heating panel. Sectional drawing in the middle of valley-folding a floor heating panel. Sectional drawing which shows the state which the valley folding of the floor heating panel was completed. Explanatory drawing which shows the state before and after valley-folding a floor heating panel. BB sectional drawing of FIG. The perspective view in the middle of mountain-folding a floor heating panel. The perspective view which shows the state which the mountain folding of the floor heating panel was completed. The perspective view of the floor heating panel seen from the angle different from FIG. It is 2nd Embodiment, Comprising: The expanded view of the base panel which expands and shows a part of valley fold line. The perspective view of the base panel shown by FIG. FIG. 9 is a developed view of a base panel showing a part of a mountain fold line in an enlarged manner according to the third embodiment. The perspective view of the base panel shown by FIG. The development view of the floor heating panel in a prior art. (A), (b) is sectional drawing at the time of valley-folding the floor heating panel in a prior art.

Explanation of symbols

  L1 ... Valley fold line (folding line), L2 ... Mountain fold line (folding line), E1 ... 1st end part, E2 ... 2nd end part, 11 ... Floor heating panel, 12a, 12b, 12c ... Base panel, 13 DESCRIPTION OF SYMBOLS ... Piping groove, 13a ... Opening part, 14 ... Hot water pipe (heat source pipe), 15 ... Radiation sheet, 17 ... Oblique part, 31, 32, 34, 35 ... Inclined surface.

Claims (6)

A piping groove into which a flexible heat source pipe is fitted is formed on the surface of a plurality of adjacent base panels, and the piping groove is crossed over a folding line located at the boundary between adjacent base panels. In the floor heating panel formed in
In the place where the folding line of the piping groove is crossed, an oblique part that obliquely intersects the folding line is formed, and in this oblique part, a pipe restraining part that is located on both sides away from the folding line is formed. , Forming an open part that allows deformation of the heat source pipe between both pipe restraint parts ,
The floor heating panel according to claim 1, wherein an inclined surface is formed on one side of the open portion in the pipe groove so that the width dimension of the open portion decreases toward the bottom wall . The floor heating panel according to claim 1, wherein the opening portion extends between adjacent base panels. The floor heating panel according to claim 1 or 2, wherein the oblique portions are formed in two strips and arranged in parallel . The floor heating panel according to claim 3 , wherein the open portion is formed outside both oblique portions . The floor heating panel according to any one of claims 1 to 4 , wherein the open portion is formed so that a bottom wall thereof is removed . The floor heating panel according to any one of claims 1 to 5, wherein a metal heat dissipating sheet is attached to a surface of the base panel to close a piping groove .

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