JPH11190529A - Panel unit for floor heating and floor heating panel employing the same unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate connection of a member for supplying or a member for connection having the structure of pipe fitting, by a method wherein terminal unit of a route, constituted by mounting a heat medium circulating pipe on a groove formed on a board type body, is positioned at a notched part while the curved part of the groove is constituted so as to be wider than the outer diameter of a heat medium circulating pipe. SOLUTION: A heat medium circulating pipe 3 constitutes four routes 3a to 3d mounted respectively on grooves 4 formed between notched part 2a and the like. Respective terminal units of both sides of the heat medium circulating pipe 3 in these routes are positioned at the notched part 2a and the like. The route 3d among four routes of the heat medium circulating pipes 3 is constituted so as to be meandered while the other routes 3a to 3c are constituted so as to be straight line routes. The width of the groove 4 at the curved part of the same is constituted so as to be wider than the outer diameter of the heat medium circulating pipe 3 (widened width part Wa), while the vicinity of the end parts of the routes are constituted so as to be expanded gradually toward the notched part 2 (expanded part Wb).

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 unit and a floor heating panel using the same.

[0002]

2. Description of the Related Art In recent years, it has been proposed that a plurality of panel units provided with a pipe for circulating a heat medium are arranged vertically and horizontally to form a floor heating panel of a desired size. For example, in the specification and drawings attached to the application of the applicant of the present invention, Japanese Patent Application No. Hei 8-242855, each panel unit has a square plate-like shape as shown in FIGS. a
Notches b are provided at the four corners, and support legs c (positions are indicated by ◎) are provided below and near the notches b, and the heat medium circulation pipe d is meandered to form one path. The configuration is such that both ends of the medium circulation pipe d are positioned in the notch b at one corner. In the panel unit e, the shape of the cutout portion b is a square shape with corners cut out at right angles.

In this configuration, each panel unit e
Are adjacent to each other as a group so that the respective corners where the both ends of the heat medium circulation pipe d are located are opposed to each other, and the cutouts b form a square having a size four times the cutout. A space f is formed, and in this space f, a supply member of a pipe joint structure such as a heat medium feed pipe connected to a heat source device and a header h of a heat medium return pipe connected to the end of each heat medium circulation pipe d. And the adjacent panel unit e is joined by a connecting member g such as a band-shaped metal fitting. Thereafter, in order to cover the space portion f, a lamination plate i is laminated at least on the upper side of the panel unit e,
On the upper side, a finishing floor material j such as a flooring floor is laminated to form a floor.

[0004] In the above configuration, the heat medium circulation pipe d
Is formed by mounting a heat medium circulating pipe d in a groove (not shown) formed in the plate-like body a, and then supplying the supply medium to an end of the heat medium circulating pipe d located in the notch b. Connection members. The groove has no play in order to securely mount the heat medium circulation pipe d. Further, in another invention by the present inventors, a path of a plurality of heat medium circulating pipes is formed in each panel unit, and an end of each heat medium circulating pipe is positioned in each notch, and the space In the department,
By connecting the ends of the heat medium circulation pipes of the same panel unit or the ends of the heat medium circulation pipes of adjacent panel units by connecting members of the pipe joint structure, an appropriate series path is formed. I have.

[0005]

When a heat medium circulation pipe is mounted in a groove to form a path, it is not always possible to mount the heat medium circulation pipe in the same state. The position may be shifted from the predetermined position. However, since the groove is configured such that the heat medium circulation pipe is mounted without play, the position of the end of the heat medium circulation pipe cannot be adjusted. For this reason, it may be difficult to connect the supply member and the connection member of the pipe joint structure. An object of the present invention is to solve such a problem.

[0006]

In order to solve the above-mentioned problems, according to the present invention, first, a plurality of panel units each formed by providing a path for a heat medium circulation pipe in a plate-like body provided with a notch portion are arranged vertically and horizontally. A floor heating panel having a desired size is formed adjacent to the panel, and a space portion is formed by the adjacent notch. In the path, the heat medium circulation pipe is mounted in a groove formed in the plate-like body. And a configuration in which the end of the path is positioned at the notch, and the groove is configured to be wider than the outer diameter of the heat medium circulation pipe at the bend of the path. I do.

In another aspect of the present invention, a floor heating unit having a desired size is provided by adjoining a plurality of panel units formed by providing a path for a heat medium circulating pipe on a plate-like body provided with a cutout portion. And a space formed by adjacent notches, wherein the path is formed by mounting a heat medium circulation pipe in a groove formed in a plate-like body, and an end of the path is formed. In the notch,
A floor heating panel unit is proposed in which the groove is widened toward the notch near the end of the path.

According to the present invention, as still another configuration,
A plurality of panel units formed by providing a path for a heat medium circulation pipe in a plate-like body provided with a notch portion are vertically and horizontally adjacent to each other to form a floor heating panel of a desired size, and a space is formed by the adjacent notch portion. In what constitutes a part, the path is
A heat medium circulating pipe is attached to a groove formed in the plate-like body, and the end of the path is positioned at the notch. The groove is formed at a bent part of the path by the heat medium circulating pipe. To propose a floor heating panel unit that is configured to be wider than the outer diameter and configured to expand toward the notch near the end of the path.

According to the present invention, it is proposed that, in the above-described configuration, the first curved portion from the end of the path is the only curved portion of the path that is wider than the outer diameter of the heat medium circulation pipe.

According to the present invention, in the above configuration, the notch can be provided at a corner of the plate-like body or a center of the side.

In the present invention, the notch may be formed in a right-angled isosceles triangular shape obtained by diagonally notching a plate-like body, or in a square shape.

According to the present invention, in the above structure, the low step is formed inside the edge of the notch, and the groove forming the path is formed near the end of the path corresponding to the low step. It is proposed to configure a slope that becomes lower in the direction.

According to the present invention, a plurality of the floor heating panel units having the above-described configuration are vertically and horizontally adjacent to each other, and a space is formed by the adjacent cutouts. A floor heating panel is proposed in which the ends of the pipes are connected to each other by a connection member, and a heat medium supply member is connected to an end of the heat medium circulation pipe in a desired path.

Further, in the present invention, the low step is formed inside from the edge of the notch, and the groove forming the path is formed in the direction of the notch near the end of the path corresponding to the low step. A plurality of floor heating panel units constituting the lower inclined portion are vertically and horizontally adjacent to each other, and a notch portion adjacent to the space portion is formed. In this space portion, the end portions of the heat medium circulation pipes of other desired paths are formed. Along with connecting the members by a connecting member, connecting a heat medium supplying member to an end of the heat medium circulating pipe of a desired path, and furthermore, a low step portion formed around the space portion has a depth and We propose a floor heating panel in which adjacent panel units are joined by fitting joining plates of the same thickness and fixing the joining plates to each panel unit.

According to the present invention, in the above configuration,
It is proposed that the floor heating panel unit be provided with support legs and configured to be supported at a predetermined height.

According to the present invention described above, the end portion of the heat medium circulating pipe is moved in the longitudinal direction by the wide play formed in the groove corresponding to the bent portion of the path of the heat medium circulating pipe. Can be adjusted. Also, the end of the pipe for heat medium circulation can be adjusted in the horizontal direction by the play of the divergent structure formed in the notch direction in the groove corresponding to the end of the path of the pipe for heat medium circulation. it can. Therefore,
By applying either or both of the former and the latter, the connection of the supply member and the connection member of the above-mentioned pipe joint structure becomes easy.

[0017]

Next, an embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a plan view showing a first embodiment of a panel unit U to which the present invention is applied, and FIG. 2 is a sectional view taken along line AA of FIG. FIG. 3 is an enlarged view of the upper right portion of the panel unit U of FIG. 1, and FIG.
FIG. 4 is a cross-sectional view taken along line B. FIG. 5 is a plan view schematically showing a part of a floor heating panel in which a plurality of the above panel units are vertically and horizontally adjacent to each other. Reference numeral 1 denotes a plate-like body, and the plate-like body 1 is a square, and each corner has a notch 2 (2a, 2) in the shape of a right-angled isosceles triangle cut diagonally.
b, 2c, 2d), and constitutes a low step portion 7 inward from the edge of the notch 2. As shown in FIG. 2, a plurality of grooves 4 are formed on the upper surface of the plate-shaped body 1 so that the respective ends are located in the adjacent cutouts 2. Is mounted, the heat medium circulating pipe 3 has four paths. That is, the heat medium circulating pipe 3 is provided with the cutouts 2a, 2b; 2b, 2c;
c, 2d; mounted in grooves 4 between 2d and 2a, respectively;
a, 3b; 3c; 3d, and the respective ends of both sides of the heat medium circulating pipe 3 are cutouts 2a, 2b; 2b, 2c; 2c, 2d; 2a. Of the four paths of the heat medium circulating pipe 3, the path 3d is meandering, and the other paths 3a, 3b, 3c are straight paths. As shown in FIG. 3, the groove 4 is wider (the wide part Wa) than the outer diameter of the heat medium circulating pipe 3 at the bent part of the path.
And a notch 2 near the end of the path.
It is configured to diverge in the direction (divergent portion Wb). On the other hand, the groove 4 is configured to have a width equal to or slightly larger than the outer diameter of the heat medium circulation pipe 3 so that the heat medium circulation pipe 3 can be securely mounted except for the above-described locations. I have. In the above configuration, a predetermined path of the heat medium circulating pipe 3 can be formed by inserting the heat medium circulating pipe 3 cut in advance to a predetermined length into the groove 4 and mounting the same. The shape of the path of the service pipe 3 can be appropriately configured by the groove 4. Thus, the heat medium circulation pipe 3
When configuring the path, the heat medium circulation pipe 3 has a length such that it protrudes appropriately outward from the surface of the cutout portion 2 so as to be connectable to a connection member or a supply member described later.

Here, as long as the plate-like body 1 can support the load on the floor, an appropriate material such as a wood plywood, a particle board, a foamed plastics board, or a composite thereof is used. Can be. Plate-like body 1
The notch 2 is formed in a right-angled isosceles triangle shape in which the corners of the plate-like body 1 are diagonally cut out as described above, and also has the same shape as that of the related art, that is, cuts the corners of the plate-like body 1 at right angles. It can also be configured in a chipped square shape. The heat medium is, for example, hot water. In this case, the heat medium circulation pipe 3 may be a pipe made of a material having excellent pressure resistance, heat resistance, and durability, such as cross-linked polyethylene. On the other hand, in this embodiment, the position indicated by the ◎ mark in the figure below the plate-shaped body 1, that is, the position near the notch 2 (2a, 2b, 2c, 2d) at the four corners,
The support legs 5 are arranged at an intermediate position between the corners and at the center position. In addition, the position where the support leg 5 is arranged is at least at the four corners of the cutouts 2 (2a, 2b, 2c, 2).
Other than being provided at a position near d), it can be set at an appropriate position other than the above-mentioned position, and in some cases, it can be a floor heating panel unit without supporting legs.

In the above configuration, when a plurality of panel units U are arranged vertically and horizontally adjacent to each other, as shown in FIGS. A square space S having a rotated shape is formed. Therefore, in this space S, predetermined ends of the heat medium circulating pipes 3 of the respective paths 3a, 3b, 3c, 3d are connected to each other by the connecting member 10, and the respective paths are communicated. An end of the heat medium circulation pipe 3 of each path to be formed is connected to a heat medium flow pipe 13 connected to the heat source device.
(Described later) and a supply member 11 connected to a heat medium return pipe 14 (described later) so that the heat medium can be circulated and supplied, and the adjacent panel unit U (U1, U2, U
3, U4) can be joined to form a floor heating panel of a predetermined size. Connection member 10 and supply member 11
Has a pipe joint structure as shown in an embodiment to be described later. In order to connect these to the end of the heat medium circulating pipe 3 smoothly, the end of the heat medium circulating pipe 3 is Must be brought into position. As described above, conventionally, it has been difficult to adjust the position of the heat medium circulation pipe 3, but in the configuration of the present invention, as described above, the path of the heat medium circulation pipe 3 is bent. Since the wide portion Wa formed in the portion of the groove 4 corresponding to the portion T serves as play, the end position of the heat medium circulation pipe 3 can be adjusted in its length direction. When such an amount of adjustment in the length direction is not necessary, the curved portion of the path constituting the wide portion Wa may be only the first curved portion from the end of the path. However, in the case of the embodiment in which the wide portions Wa are formed in all the bent portions as shown in the figure, a large adjustment amount can be obtained by sequentially adjusting the positions by the wide portions Wa. Further, in the present invention, since the flared portion Wb formed in the notch direction at the groove portion corresponding to the vicinity of the end of the path of the heat medium circulating pipe 3 serves as a play, the end position of the heat medium circulating pipe is laterally shifted. Direction can be adjusted. Thus, in the present invention, when connecting the connecting member 10 and the supplying member 11 of the pipe joint structure to the pipe 3 for circulating the heat medium, the position of the end of the pipe 3 for circulating the heat medium is changed by the members 10, 11 It can be adjusted appropriately according to. As in the illustrated embodiment, both the wide portion Wa and the flared portion Wb may be applied, but only one of them may be applied.

Next, in this embodiment, the joining between the adjacent panel units U is performed by a square low step formed on the periphery of the space S by the low step 7 as shown in FIGS. As shown in FIG. 9, the joint plate 6 is fitted and fixed to the plate-like body 1 with nails or the like. In order to apply such a bonding method, the groove 4 is formed with an inclined portion 8 corresponding to the low step portion 7 as shown in FIGS. As shown in FIG. 7, the end side of the circulation pipe 3 is configured to reach the space S from the lower side of the joining plate 6 via the inclined portion 8.

As described above, FIG. 5 shows a first example of a floor heating panel in which a plurality of panel units U are vertically and horizontally adjacent to each other.
In this embodiment, four adjacent panel units U arranged vertically and horizontally are grouped together. That is, in FIG. 5, four adjacent panel units U1, U2, U3, and U4, which are vertically and horizontally adjacent, are set to one.
In the space S defined by the cutouts 2 located on the center side of the group, the ends of the heat medium circulating pipes 3 of the two paths of the respective panel units U located in each cutout are connected to the supply member. 11, In this case, connect to the header,
In the space S 'formed by the cutouts 2 located on the peripheral side of the first group, the ends of the heat medium circulation pipes 3 of the two paths located in each cutout are connected by the connecting member 10. Thus, the heat medium can be circulated and supplied in parallel from the center side of the group to the heat medium circulation pipes 3 of the four adjacent panel units constituting the group. Such a circulation form of the heat medium is the same as the conventional one shown in FIG. In addition, as the circulation form of the heat medium,
It is appropriate to adopt a configuration in which all the heat medium circulation pipes 3 of one panel unit U are connected in series and circulated, or a configuration in which the pipes are connected in series and parallel and circulated. Further, the number of panel units U in a group having a common circulation system may be four or more.

The floor heating panel constructed as described above is
For example, as shown in FIG. 9, it is possible to support the floor unit at a predetermined height from the floor slab 9 or the like by the support legs 5 arranged on each panel unit U. At this time, the support leg 5 may be integrally configured to be fixed to a predetermined position of the plate-shaped body 1 in advance prior to the above-described construction, or may be configured to be fixed to a predetermined position at the time of construction. Then, a floor can be formed by stacking a finishing floor material 12 such as a flooring floor on the upper side of the floor heating panel configured as described above. That is, in the present invention, the joining plate 6 is connected to the low step portion 7 around the space portion S.
And fixed to each panel unit U, the joining plate 6
Can close the space S and simultaneously join the four adjacent panel units U, and furthermore, the upper surface of each panel unit U and the upper surface of the joining plate 6 are flush with each other. The finishing floor material 12 such as the flooring floor can be laminated without laminating the plywood. Of course, depending on the case, it is also possible to laminate discarded plywood.

Here, a specific example of the connection member 10 and the supply member 11 will be described with respect to an example of a circulation mode in which all the heat medium circulation pipes 3 of a group of four panel units U are connected in series. First, FIG. 10 is an enlarged plan view of the vicinity of the space S and a part of which is shown in a sectional view for convenience, and FIG. 11 is a sectional view taken along the line DD of FIG. 12 to 14 are front views of elements constituting the connection member 10 and the supply member 11. In this specific example, the connecting member 10 includes a female member 15 shown in FIG. 13 and a male member 16 shown in FIG. The female member 15 has a configuration in which connection cylinders 18 are protruded in the lateral direction on both ends of a cylindrical body 17 made of plastics or the like having both ends closed, and a flange 19 is provided at the tip of each connection cylinder 18. The male member 16 has a fitting tube 21 for fitting the heat medium circulating pipe 3 at one end of the pipe 20 bent by 90 °, and fitting the female member 15 to the connecting tube 18 at the other end. Tube part 22
The fitting cylinder portions 21 and 22 are each provided with a means for maintaining a water-tight connection. That is, in this example, the fitting cylindrical portion 21 fitted into the heat medium circulating pipe 3 made of an elastically deformable material such as cross-linked polyethylene is provided with an uneven portion called a bamboo shoot. Connection tube part 1 of female member 15 made of material that is difficult to deform
8 is fitted into the rubber packing 2 on the outer periphery.
3 is attached. Further, a flange portion 24 is provided on the rear side of the fitting tube portion 22 so as to contact the flange portion 19 of the connection tube portion 18.

Next, the supply member 11 comprises a female member 25 shown in FIG. 12 and a male member 16 shown in FIG. That is, the male member 16 is a member that also serves as the connection member 10 and the supply member 11. Therefore, the female member 25 is
Generally, it has the same configuration as the female member 15 for the connecting member 10, and the connecting cylindrical portions 18 for fitting the inserting cylindrical portions 22 of the male member 16 are projected in the lateral directions on both ends of the cylindrical body 17. A flange 19 is provided at the tip of the connection tube 18.
And in addition to such a configuration, the female member 25 has a configuration in which one end side of the cylindrical body 17 is provided with a fitting portion 26 that is fitted into the heat medium return pipe 13 and the heat medium return pipe 14 without closing. The fitting cylindrical portion 26 is provided with an uneven portion called a bamboo shoot as a means for maintaining a watertight connection.

In the above configuration, the fitting cylinder portions 21 of the male member 16 are fitted into the respective ends of the heat medium circulating pipes 3 of the two paths to be connected, and the respective fitting cylinder portions 22 are connected to the female members 15. The two paths can be communicated below the space portions S and S 'by fitting into the connection tube portion 18 of the first embodiment.

In the same manner as described above, the fitting cylinder portion 21 of the male member 16 is fitted into the heat medium circulating pipe 3 of the path connected to the heating medium feed pipe 13 or the heating medium return pipe 14, and the respective fitting cylinders are provided. The part 22 is fitted into the connection tube part 18 of the female member 25,
Further, by connecting the fitting cylinder portion 26 of the female member 25 to the heat medium return pipe 13 or the heat medium return pipe 14, the heat medium circulation pipe 3 of two adjacent paths and the heat medium flow pipe 13 or the heat medium return pipe The pipe 14 is connected to the supply member 1 below the space S.
1 can be connected. Although not shown, when the male member 16 and the female members 15 and 25 are connected, the flanges 24 and 19 that are in contact with each other can be clamped by clips or the like to prevent disconnection due to water pressure.

FIG. 15 shows a second embodiment of a floor heating panel according to the present invention in which a plurality of panel units U are vertically and horizontally adjacent to each other. In this embodiment, each panel unit U has two corners. This is a configuration in which the notch 2 is provided only in
The path of the heat medium circulating pipe 3 is formed by notches 2a and 2b.
Two paths 3s and 3w are provided between them. These routes 3
The configuration of the groove 4 for s and 3w is the same as in the above-described embodiment. In this configuration, these panel units U
Are vertically and horizontally adjacent to each other, and the three adjacent panel units U
1, U2 and U3 are considered as one group, and the groups are arranged in rows.
.. are circulated and supplied in series for each of b, c, d,. The plurality of panel units U are shown in FIG.
As shown in FIG. 6, similarly to the above-described conventional one, the space S is closed by the laminating and bonding plate 27 and the adjacent panel units U are joined to each other, and then the finished floor plate 12 is fixed to the specification state. Note that, in this embodiment, the same elements as those in the above-described embodiment are denoted by the same reference numerals, and redundant description will be omitted.

In this embodiment, since no space is formed in the adjacent portion where each of the sides of the panel unit U where the notches 2a and 2d are not provided is aligned, heat is radiated from this space to the underfloor space or the like. Can be prevented.

Next, FIG. 17 shows a third embodiment of the floor heating panel according to the present invention. In this embodiment, a notch 2 (2
a, 2b, 2c, 2d) to form a low step portion 7 inside the edge of the notch, and arrange the end of the heat medium circulation pipe 3 in at least one notch 2a. Unit U is constituted. When a plurality of the panel units U are vertically and horizontally adjacent to each other and have a desired size, spaces S and S ′ are formed by the notches 2 facing each other, and are formed around these spaces S and S ′. A joining plate 8 having the same thickness as the depth thereof is fitted in the low step portion 7 and the adjacent panel units U are joined by fixing the joining plate 8 to each panel unit U. In this embodiment, the path of the heat medium circulating pipe 3 is formed by the groove 4 having the same configuration as that of the above-described embodiment, and the number, shape, shape of the cutout 2 and the like are appropriate.

[0030]

As described above, according to the present invention, a plurality of panel units each having a plate-like body provided with a cutout portion provided with a path for a heat medium circulating pipe are vertically and horizontally adjacent to each other for floor heating of a desired size. In forming the panel and forming the space by the adjacent notch, a wide portion is formed in the groove portion corresponding to the bent portion of the path of the heat medium circulation pipe, or the path of the heat medium circulation pipe is formed. The end portion of the pipe for circulating the heat medium can be appropriately adjusted because a divergent portion is formed in the groove portion corresponding to the vicinity of the end portion of the pipe in the direction of the notch portion. There is an effect that connection of members becomes very easy.

[Brief description of the drawings]

FIG. 1 is a plan view conceptually showing an embodiment of a panel unit applied to a floor heating panel of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged view of an upper right portion of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a plan view schematically showing a first embodiment of the floor heating panel of the present invention in which a plurality of panel units of FIG. 1 are vertically and horizontally adjacent to each other.

FIG. 6 is an enlarged perspective view of a main part of FIG. 3;

FIG. 7 is a sectional view taken along line CC of FIG. 6;

FIG. 8 is a cross-sectional view taken along line CC of FIG. 6 in a state where adjacent panel units are joined.

FIG. 9 is a cross-sectional view of the vicinity of a space in a state where adjacent panel units are joined.

FIG. 10 is a plan view in which the vicinity of a space S is enlarged and a part thereof is shown in a sectional view for convenience.

FIG. 11 is a cross-sectional view taken along line DD of FIG. 10 in a state where adjacent panel units are joined by a joining plate 6.

FIG. 12 is an example of an element constituting a connection member and a supply member.

FIG. 13 is an example of another element constituting the connection member.

FIG. 14 is an example of another element constituting the supply member.

FIG. 15 is a plan view schematically showing a floor heating panel according to a second embodiment in which a plurality of panel units are vertically and horizontally adjacent to each other.

16 is a cross-sectional view of the vicinity of the space in FIG. 15 showing a state in which adjacent panel units are joined and a finished floor panel is fixed.

FIG. 17 is a plan view schematically showing a third embodiment of a floor heating panel in which a plurality of panel units are vertically and horizontally adjacent to each other.

FIG. 18 is an explanatory diagram schematically showing a conventional example of a floor heating panel in which a plurality of panel units are vertically and horizontally adjacent to each other.

FIG. 19 is a cross-sectional view showing an example of a floor configured using a conventional floor heating panel.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Plate-shaped body 2 (2a, 2b, 2c, 2d) Notch 3 Pipe for heat medium circulation 3a, 3b, 3c, 3d Path 4 Groove 5 Support leg 6 Joint plate 7 Low step part 8 Slope part 9 Floor slab 10 Connection Member 11 Supply member (header) 12 Finished floor material 13 Heat medium flow pipe 14 Heat medium return pipe 15 Female member 16 Male member 17 Cylindrical body 18 Connection cylinder part 19 Flange part 20 Pipe 21 Fitting cylinder part 22 Fitting cylinder part 23 Rubber packing 24 Flange part 25 Female member 26 Fitting tube part 27 Discard bonding plate

Claims (13)

[Claims] 1. A floor heating panel having a desired size is constituted by vertically and horizontally adjoining a plurality of panel units each having a path for a heat medium circulating pipe provided in a plate-like body provided with a notch. In the configuration in which the notch portion forms a space portion, the path is configured by mounting a heat medium circulation pipe in a groove formed in a plate-like body, and the end of the path is positioned in the notch portion. Wherein the groove is wider than the outer diameter of the pipe for circulating the heat medium at the curved portion of the path. 2. A floor heating panel having a desired size is formed by vertically and horizontally adjoining a plurality of panel units each having a path for a heat medium circulating pipe provided on a plate-like body provided with a notch. In the configuration in which the notch portion forms a space portion, the path is configured by mounting a heat medium circulation pipe in a groove formed in a plate-like body, and the end of the path is positioned in the notch portion. A floor heating panel unit, wherein the groove is configured to be wider than the outer diameter of the heat medium circulating pipe at a bent portion of the path, and is configured to expand toward the notch near the end of the path. 3. The bent portion of the path configured to be wider than the outer diameter of the pipe for circulating the heat medium, wherein only the first bent portion from the end of the path is provided. Floor heating panel unit 4. A floor heating panel of a desired size is formed by vertically and horizontally adjoining a plurality of panel units each having a path for a heat medium circulation pipe provided in a plate-like body provided with a notch. In the configuration in which the notch portion forms a space portion, the path is configured by mounting a heat medium circulation pipe in a groove formed in a plate-like body, and the end of the path is positioned in the notch portion. A floor heating panel unit characterized in that the groove is formed so as to expand toward the notch near the end of the path. 5. The panel unit for floor heating according to claim 1, wherein the notch is provided at a corner of the plate-like body. 6. The floor heating panel unit according to claim 1, wherein the notch is provided at a center of a side of the plate-like body. 7. The notch portion is formed in a right-angled isosceles triangle shape in which a plate is obliquely cut.
The floor heating panel according to any one of items 1 to 6, 8. The floor heating panel according to claim 1, wherein the cutout portion is formed in a square shape. 9. A low step portion is formed inward from an edge of the notch, and a groove forming a path has an inclined portion which becomes lower in the direction of the notch near the end of the path corresponding to the low step. The panel unit for floor heating according to any one of claims 1 to 8, wherein the panel unit is configured. 10. The floor heating panel unit according to any one of claims 1 to 9, wherein the panel unit is provided with support legs and can be supported at a predetermined height. 11. A plurality of the floor heating panel units according to any one of claims 1 to 10 are vertically and horizontally adjacent to each other, and a notch portion adjacent to the space portion is formed. Floors, wherein the ends of the pipes for circulating the heat medium in the path are connected by connecting members, and a member for supplying the heat medium is connected to the ends of the pipes for the circulating heat medium in the desired path. Heating panel 12. A plurality of panel units for floor heating according to claim 9 are vertically and horizontally adjacent to each other, and a space portion is formed by adjacent notches, and a heat medium circulation pipe of another desired path in this space portion. Are connected to each other by a connection member, and a heat medium supply member is connected to an end of the heat medium circulation pipe in a desired path, and further to a low step portion formed around the space. A panel for floor heating, wherein a panel having the same thickness as its depth is fitted and the adjacent panel units are bonded by fixing the panel to each panel unit. 13. The floor heating panel according to claim 11, wherein the floor heating panel unit has support legs and can be supported at a predetermined height.