JP5828072B2 - Floor heating panel - Google Patents

Description

  The present invention relates to a floor heating panel in which a storage groove for storing a heat medium pipe is formed in a panel body.

  Patent Literature 1 discloses a grooved panel for floor heating in which a concave groove for accommodating a heat medium circulation pipe is formed on the upper surface of the panel.

JP-A-6-180125

  By the way, in order to increase the area heated by the floor heating panel, a method of connecting the heat medium pipe of the floor heating panel to the heat medium pipe of the adjacent floor heating panel through a joint is conceivable.

  Here, in order to connect the heat medium pipe to the heat medium pipe of the adjacent floor heating panel, unlike the case where a single floor heating panel is used alone, a storage groove for storing the heat medium pipe is provided. It is necessary to form up to the end face of the panel body. Further, it is necessary to form a portion for storing the joint in the storage groove. For this reason, a floor heating panel that is used alone and a floor heating panel that can connect the heat medium pipe to the heat medium pipe of another floor heating panel can be used for both cases where the floor heating area is small and wide. It is necessary to manufacture, and there is a concern that the types of floor heating panels increase and the manufacturing cost increases.

  This invention is made | formed in view of the said situation, Comprising: It aims at providing the floor heating panel which can reduce the kind of panel and can hold down cost.

In order to solve the above problems, a floor heating panel according to the present invention is a floor heating panel in which a storage groove for storing a heat medium pipe is formed in the panel main body, and the panel main body is opposed to the floor heating panel. A first pipe introduction port and a second pipe introduction port are formed on a front end surface constituting one side of the two sides, and the storage groove includes a first linear groove portion extending rearward from the first pipe introduction port, A second linear groove extending rearward from the two piping inlets, a folding groove formed at the front end of the panel body and connecting the first linear groove and the second linear groove, and the front end of the panel body Formed in a portion, extended from the rear end portion of the second linear groove portion to the rear side, and then folded back to the front side on the opposite side of the first linear groove portion, and stored in the first linear groove portion of the heat medium pipe. The downstream part of the part The folded groove portion, which extends to the front side, is folded back to the rear side at a position behind the folded groove portion, and a portion downstream of the portion housed in the folded groove portion of the heat medium pipe is accommodated. A joint having a folded portion, and a groove width for accommodating a joint for connecting the heating medium pipe to another heating medium pipe in each of the first linear groove section and the second linear groove section. wherein the housing portion is formed.

  Further, it is preferable that a portion extending from the rear end portion of the second linear groove portion to the rear side in the folded groove portion is positioned closer to the first linear groove portion than the folded portion.

Further, the receiving groove is formed in the front end of the panel body, after extending to the rear from the in fold returns folded in front in the groove portion, the front side in the second linear groove opposite A second folded groove portion that is folded back, and the second folded groove portion has a portion extending rearward from a portion folded back to the front side of the folded groove portion than the portion folded back to the front side of the folded groove portion. It is preferable to be positioned on the straight groove portion side.

  Moreover, it is preferable that after the said groove | channel for folding | turning crosses the middle of said 2nd linear groove part from said 1st linear groove part side, it is connected to the rear-end part of said 2nd linear groove part.

  In this invention, the kind of floor heating panel can be reduced and cost can be held down.

It is a top view of the 1st floor heating panel which abbreviate | omitted illustration of the heat equalization sheet | seat of this embodiment, piping for heat-medium, and a holding member. It is a top view of the 2nd floor heating panel which abbreviate | omitted illustration of the soaking | uniform-heating sheet | seat, piping for heat-medium, and a holding member. It is a top view of the 3rd floor heating panel which abbreviate | omitted illustration of the soaking | uniform-heating sheet | seat, piping for heat medium, and a holding member. (A) is AA sectional drawing of FIG. 1, (b) is BB sectional drawing of FIG. It is the top view which showed the state which turned up the piping for heat-medium using the groove part for bending, and abbreviate | omitted illustration of the heat equalization sheet | seat, the piping for heat-medium, and a holding member. It is the top view which showed the state which arranged the floor heating panel in the front-back direction, and abbreviate | omitted illustration of the heat equalization sheet | seat, piping for heat-medium, and a holding member. It is the top view which showed the state which connected piping for heat-medium to other heat-medium piping via a joint, and abbreviate | omitted illustration of the heat equalization sheet | seat, piping for heat-medium, and a holding member. It is explanatory drawing which shows the pattern of piping for heat medium of a comparative example.

  Hereinafter, the present invention will be described with reference to the accompanying drawings. The floor heating panel 1 of the present embodiment is provided with one or a plurality of floor heating panels 1 arranged side by side on a floor base or an existing floor, and constitutes a floor heating apparatus with a heat source device (not shown) that circulates a heat medium to the floor heating panel 1. To do. A large number of floor boards (not shown) are provided side by side on the floor heating panel 1 provided side by side or one or more, thereby forming a floor having a floor heating function.

The floor heating panel 1, for example, the first floor heating panel 3 shown in FIG. 1, the second floor heating panel 4 shown in FIG. 2, a plurality of types of floor heating panel 1, such as the third floor heating panel 5 shown in FIG. 3 In the floor heating apparatus, an arbitrary number of floor heating panels 1 selected in consideration of the size and shape of the floor heating portion are used.

  The first floor heating panel 3, the second floor heating panel 4, and the third floor heating panel 5 have the same basic configuration. For this reason, below, about a common structure, each of the 1st floor heating panel 3, the 2nd floor heating panel 4, and the 3rd floor heating panel 5 is described as the floor heating panel 1, and is demonstrated.

  As shown in FIGS. 1 to 3, each floor heating panel 1 is provided with a panel main body 6, a small joist 7 provided in a state embedded in the panel main body 6, and also embedded in the panel main body 6. A heat medium pipe 8 (see FIG. 4) is provided.

  A cross-sectional view of the panel body 6 is shown in FIG. The panel main body 6 includes a substantially rectangular plate-like base material 9 and a soaking sheet 17 attached to the upper surface of the base material 9. In addition, in FIG. 1 thru | or FIG. 3, illustration of the soaking | uniform-heating sheet | seat 17 is abbreviate | omitted. Hereinafter, the longitudinal direction of the base material 9 in FIGS. 1 to 3 is defined as the front-rear direction.

  The base material 9 is formed of a foamed synthetic resin having heat insulation properties. The base material 9 of the second floor heating panel 4 shown in FIG. 2 is formed to have the same width and the same length as the base material 9 of the first floor heating panel 3 shown in FIG. On the other hand, the base material 9 of the third floor heating panel 5 shown in FIG. 3 has the same length as the base material 9 of the first floor heating panel 3, but is wider than the base material 9 of the first floor heating panel 3. Is formed to be narrow.

  As shown in FIG.1 and FIG.3, the notch 15 for arrange | positioning the header which is not shown in figure is formed in the corner | angular part 21 of each base material 9 of the 1st floor heating panel 3 and the 3rd floor heating panel 5. As shown in FIG. Yes. This header supplies the heat medium, which is hot water, from the heat source machine to the heat medium pipe 8 and returns the heat medium in the heat medium pipe 8 to the heat source machine. The inlet and outlet of the heat medium pipe 8 Connected to. Note that the heat medium pipe 8 provided in the second floor heating panel 4 shown in FIG. 2 is connected to the heat medium pipe 8 provided in another adjacent floor heating panel 1 so that the heat medium circulates. Is done.

  The soaking sheet 17 shown in FIG. 4 is made of aluminum having excellent thermal conductivity, is provided over the entire upper surface of the panel body 6, and uniformly transports the heat of the heat medium pipe 8 to the floor board material. Functions as a thermal layer.

  As shown in FIGS. 1 to 3, the panel main body 6 of each floor heating panel 1 is formed with a plurality of small joist grooves 10 that are opened downward to store the small joists 7. Each small joist groove 10 penetrates the base material 9 in the vertical direction, and its bottom portion is constituted by a soaking sheet 17. Each small joist 7 is fitted in the corresponding small joist groove 10 and is fixed to the panel body 6 by adhesion or the like.

  In the present embodiment, two small joists 7 parallel to the front-rear direction are arranged in the front-rear direction and spaced apart from each other between the front and rear end faces that form two opposing sides of the substantially rectangular panel body 6. The small joist groove 10 is formed at a location corresponding to the small joist 7.

  Hereinafter, when particularly distinguishing, among the small joists 7 provided in the panel main body 6, the small joists 7 arranged on the front side are referred to as the first small joists 11 and the small joists 7 arranged on the rear side are described. This is referred to as second small joist 12.

  In the first floor heating panel 3 shown in FIG. 1 and the second floor heating panel 4 shown in FIG. 2, two sets of the first small joist 11 and the second small joist 12 arranged on the rear side are provided on the left and right. It has been. In addition, the third floor heating panel 5 shown in FIG. 3 is provided with only one set of the first small joist 11 and the second small joist 12 at the center in the width direction. In each floor heating panel 1 shown in FIGS. 1 to 3, the length of the first small joist 11 is longer than the length of the second small joist 12.

  On the upper surface of the base material 9 of each floor heating panel 1, a storage groove 16 that opens upward for storing the heat medium pipe 8 (see FIG. 4) made of a flexible pipe is formed. As shown in FIG. 4A, the storage groove 16 is provided with a holding member 19 made of aluminum foil or the like. The holding member 19 has a groove portion 20 that is located in the storage groove 16 and opens upward, and the heat medium pipe 8 is stored and held in the groove portion 20. 1 to 3, the illustration of the holding member 19 is omitted. Further, in the present embodiment, the heat medium pipe 8 is held by the holding member 19, but the holding member 19 may be omitted and the heat medium pipe 8 may be held by the storage groove 16.

  As shown in FIGS. 1 to 3, the storage groove 16 is bent and meandered at an appropriate location while avoiding the location where the small joists 7 are provided so as to extend over the entire panel body 6, and the heat medium pipe 8. Is provided over substantially the entire length of the storage groove 16. And the heating medium piping 8 of each floor heating panel 1 is heated by circulating the heating medium which is warm water, and this heat is transmitted to the floor plate material via the soaking sheet 17, thereby heating the floor.

  As shown in FIGS. 1 to 3, the storage groove 16 extends from one corner 21 on the rear side of the panel body 6 as a starting point to the other corner 22 on the rear side of the panel body 6. The storage groove 16 of this portion is located in front of the rear end surface of the base material 9 while meandering in the front-rear direction at the rear end portion of the panel body 6 and passing through the portion corresponding to the second small joist 12 in the front-rear direction. Passes between the rear end face of the second small joist 12. Subsequently, the storage groove 16 linearly advances forward from the corner portion 22 along the side end surface on the opposite side of the start point of the panel body 6 and reaches the corner portion 23 on the opposite side of the start point on the front side of the panel body 6. Subsequently, the storage groove 16 extends from the corner 23 to the corner 24 on the start point side on the front side of the panel body 6. The storage groove 16 in this portion meanders in the front-rear direction at the front end of the panel body 6. Further, in a portion where the first small joist 11 is present, it extends linearly in the front-rear direction along the first small joist 11 and passes between the first small joist 11 and the second small joist 12 located on the rear side. Subsequently, the storage groove 16 linearly extends rearward from the corner portion 24 along the side end surface of the panel body 6 on the starting point side, and reaches the corner portion 21. Subsequently, the storage groove 16 extends from the corner 21 to the corner 22. The storage groove 16 in this portion is between the first small joist 11 and the second small joist 12 located on the rear side while meandering a portion between the front end portion and the rear end portion of the panel body 6 greatly in the front-rear direction. Pass through. The meandering portion includes a portion extending linearly parallel to the front-rear direction along the side end surface of the panel body 6 and a portion extending linearly parallel to the front-rear direction along the first small joist 11. Most of the grooves are straight grooves parallel to the front-rear direction. Subsequently, the storage groove 16 extends from the corner 22 to the corner 21 and reaches the end point. The storage groove 16 of this portion meanders in the front-rear direction at the rear end portion of the panel body 6 and passes through the portion corresponding to the second small joist 12 in the front-rear direction, and is positioned in front of the rear end surface of the substrate 9. It passes between the rear end face of the second small joist 12.

  The storage groove 16 stores the heat medium pipe 8 from the start point to the end point, and the heat medium flows in the heat medium pipe 8 in the direction from the start point to the end point. In the heat medium pipe 8 thus housed, the portion closer to the start point on the forward path side is disposed adjacent to the portion closer to the end point on the return path side, whereby the floor heating panel 1 is uniformly heated throughout. The

  On the front end face of each floor heating panel 1, a first pipe introduction port 25 and a second pipe introduction port 26 for taking in and out the heat medium pipe 8 of the other floor heating panel 1 are formed. In the present embodiment, a set of the first pipe introduction port 25 and the second pipe introduction port 26 provided side by side is formed for each region 31 divided by the second small joists 12 to the left and right. The pipe inlet 25 and the second pipe inlet 26 are formed at locations corresponding to the side ends of each region 31.

  The storage groove 16 of each floor heating panel 1 has a first linear groove portion 27 extending rearward from each pair of first pipe introduction ports 25 and a second linear groove portion 28 extending rearward from each pair of second pipe introduction ports 26. have. Each first linear groove 27 and each second linear groove 28 are formed at the front end of the panel body 6. In the middle of each first linear groove portion 27, a joint storage portion 33 having an increased groove width is formed, and in the middle of each second linear groove portion 28, a joint storage portion 34 having an increased groove width is formed. Hereinafter, when particularly distinguishing, the joint storage portion 33 provided in the first linear groove portion 27 is referred to as a first joint storage portion 33, and the joint storage portion 34 provided in the second linear groove portion 28 is referred to as a second joint storage. Part 34 is described.

  Each joint storage part 34 stores joints 35 and 36 that are connecting tools for connecting the heat medium pipe 8 of the floor heating panel 1 to the heat medium pipe 8 of the floor heating panel 1 adjacent to the front. be able to. Hereinafter, when particularly distinguishing, the joint 35 housed in the first joint housing part 33 is referred to as a first joint 35, and the joint 36 housed in the second joint housing part 34 is referred to as a second joint 36. .

  Each first linear groove 27 extends greatly rearward and constitutes a linear first extending portion 30. Each first extending portion 30 constitutes a portion extending linearly along the side end surface of the panel body 6 or the first small joist 11 of the housing groove 16.

The storage groove 16 of each floor heating panel 1 is formed at the front end portion of the panel body 6 and has a folding groove portion 29 that connects the first linear groove portion 27 and the second linear groove portion 28 of each set. Each turn-back groove portion 29 crosses a portion of the second linear groove portion 28 in front of the second joint storage portion 34 from the first linear groove portion 27 side, and is then connected to the rear end portion of the second linear groove portion 28. ing. Each of the folding groove portions 29 is formed in an arc shape that protrudes substantially forward in plan view, and has no bending point. Therefore, it is possible to fold rearward by bending the heat medium pipe 8 leading to the folding grooves 29 from the portion 30 exits first extending as shown in FIG. 5 in a curved shape.

  The storage groove 16 of each floor heating panel 1 is formed at the front end portion of the panel body 6 and extends from the rear end portion of each second linear groove portion 28 to the rear side, and is opposite to the first linear groove portion 27. On the side, there is a folded groove portion 32 folded back to the front side (hereinafter referred to as a first folded groove portion 32). Each first folding groove 32 has no folding point, and the heating medium pipe 8 can be bent in a curved shape and folded forward as shown in FIG.

  In addition, the storage groove 16 of each floor heating panel 1 is formed at the front end portion of the panel body 6 and extends from the portion folded back to the front side in each first folding groove portion 32, and then the second linear groove portion. 28 has a second folded groove portion 37 folded back to the front side. Each of the second return groove portions 37 has no bending point, and as shown in FIG. 5, the heat medium pipe 8 can be bent in a curved shape and turned back.

  A portion folded back to the rear side of each second folded groove portion 37 extends greatly rearward to constitute a linear second extending portion 38. Each second extending portion 38 constitutes a portion extending linearly along the first small joist 11 of the storage groove 16.

  In addition, the storage groove 16 of each floor heating panel 1 extends linearly forward, and then is folded back to the rear at a position immediately behind the first folding groove 32, and thereafter, the folding portion extends linearly rearward. 39. The folded portion 39 is formed for each region 31 divided by the second small joist 12 on the left and right. Each folded portion 39 has a semicircular arc-shaped curved portion that protrudes substantially forward in plan view, and the heat medium pipe 8 accommodated by using the curved portion can be folded back.

  A portion extending from the rear end portion of the second linear groove portion 28 to the rear side of each first folded groove portion 32 is formed in an arc shape that protrudes toward the first linear groove portion 27 side, and is more than the corresponding folded portion 39. It is located on the straight groove 27 side. Further, the portion folded back to the front side of each first folded groove portion 32 is formed in an arc shape protruding on the opposite side to the first linear groove portion 27, and is separated from the first linear groove portion 27 than the corresponding folded portion 39. It is formed in the position. Furthermore, the left-right direction center part in the rear-end part of each 1st folding | turning groove part 32 has opposed the left-right direction center part of the front-end part of the corresponding folding | returning part 39, and this part is both sides of the rear-end part of the 1st folding-back groove part 32 It protrudes to the front side.

  FIG. 6 shows a state in which another floor heating panel 1 is disposed adjacent to the front of the floor heating panel 1. Further, in FIG. 7, a heat medium pipe 8 (hereinafter referred to as the heat medium pipe 8) provided in the floor heating panel 1 is replaced with a heat medium pipe 8 (hereinafter referred to as other heat medium pipe 8) of the other floor heating panel 1. An example of connection to the heat medium pipe 8) is shown.

  In FIG. 7, the downstream end portion of the heat transfer medium pipe 8 on the forward path side that is passed through the first extension portion 30 is introduced from the rear into the first linear groove portion 27 and stored in the first joint storage portion 33. The rear end of the first joint 35 is connected. On the other hand, the upstream end portion of the other heat medium pipe 8 is introduced from the first pipe introduction port 25 into the first linear groove portion 27 and connected to the front end portion of the first joint 35. Further, the upstream side end portion of the heat medium pipe 8 on the return path introduced from the first folded groove portion 32 to the second linear groove portion 28 is located behind the second joint 36 housed in the second joint housing portion 34. Connected to the end. On the other hand, the downstream end of the other heat medium pipe 8 is introduced from the second pipe inlet 26 into the second linear groove 28 and connected to the front end of the second joint 36.

In FIG. 5, the heating medium pipe 8 provided in the floor heating panel 1 is not connected to the other heating medium pipe 8, and a single heating medium pipe 8 is connected to the panel using the folding groove 29. The example provided over the whole main body 6 is shown. In FIG. 5, the heat medium pipe 8 passed through the first extending portion 30 is introduced from the rear into the first linear groove portion 27, and subsequently introduced into the folding groove portion 29. Subsequently, the heat medium pipe 8, after being passed through to the end of the second linear groove portion 28 folded groove 29 connected to the rear end portion of the first folding groove portion 32 and the second folding groove 3 7 They are passed through in order and then introduced into the second extension 38.

  The floor heating panel 1 described above includes a first linear groove portion 27 extending rearward from the first pipe introduction port 25 formed on the front end face of the panel body 6 and a second pipe introduction formed on the front end face of the panel body 6. A second linear groove 28 extending rearward from the mouth 26 is provided. Further, in each of the first linear groove portion 27 and the second linear groove portion 28, joint storage portions 33 and 34 for storing joints 35 and 36 for connecting the heat medium pipe 8 to the other heat medium pipe 8. Is formed. Therefore, as described above, the heating medium pipe 8 provided in the floor heating panel 1 is used for the floor heating panel 1 adjacent to the front using the joints 35 and 36 stored in the joint storage portions 33 and 34. It is possible to connect to the heat medium pipe 8. Further, the storage groove 16 has a turn-back groove portion 29 that is formed at the front end portion of the panel body 6 and connects the first linear groove portion 27 and the second linear groove portion 28. For this reason, as described above, the single heating medium pipe 8 can be provided over the entire panel body 6 by using the folding groove 29. That is, the floor heating panel 1 of the present embodiment can connect the heat medium pipe 8 to the heat medium pipe 8 of the adjacent floor heating panel 1 and connect the single heat medium pipe 8 to the panel body 6. Therefore, the number of types of floor heating panels 1 can be reduced, and the cost can be reduced.

  The storage groove 16 is formed at the front end portion of the panel body 6, extends rearward from the rear end portion of the second linear groove portion 28, and then is folded back to the front side on the side opposite to the first linear groove portion 27. A first folded groove 32 is provided. Further, the storage groove 16 has a folded portion 39 that extends to the front side and is folded back to the rear side at a position behind the first folded groove portion 32. By doing in this way, the front-end part of the panel main body 6 can fully be heated with the part accommodated in the 1st folding | returning groove part 32 of the piping 8 for heating media, and the part accommodated in the folding | returning part 39. FIG. Further, when the heat medium pipe 8 and the other heat medium pipe 8 are connected by the joints 35 and 36, the portion connected by the joints 35 and 36 is hardly heated to a high temperature. However, in the present embodiment, the vicinity of the joint housing portions 33 and 34 can be sufficiently heated by providing the first folding groove portion 32 and the folding portion 39.

  Further, when the heat medium pipe 8 is arranged at the front end portion of the panel body 6 as in the comparative example shown in FIG. 8, the regions 45 and 46 surrounded by the two-dot chain line in the figure are hardly heated. In FIG. 8, a portion indicated by reference numeral 32 ′ is a portion corresponding to the first folding groove portion 32, and a portion indicated by reference numeral 39 ′ is a portion corresponding to the folding portion 39.

  Here, in the present embodiment, as shown in FIG. 5, the portion extending from the rear end portion of the second linear groove portion 28 to the rear side in the first folding groove portion 32 is positioned closer to the first linear groove portion 27 side than the folding portion 39. I am letting. For this reason, the area | region 45 in FIG. 8 can fully be heated by the piping 8 for heat media accommodated in the part extended from the rear-end part of the 1st folding | turning groove part 32 to the back side.

  In the present embodiment, the portion folded back to the front side of the first folded groove portion 32 is formed at a position farther from the first linear groove portion 27 than the folded portion 39. For this reason, the area | region 46 in FIG. 8 can fully be heated.

  The storage groove 16 is formed at the front end portion of the panel body 6 and extends rearward from the portion folded back to the front side in the first folding groove portion 32, and then on the front side on the opposite side to the second linear groove portion 28. The second folded groove portion 37 is folded back. Further, a portion of the second folded groove portion 37 that extends rearward from the portion folded back to the front side of the first folded groove portion 32 is positioned closer to the second linear groove portion 28 than the portion folded back to the front side of the first folded groove portion 32. I am letting. By doing in this way, the 2nd return groove part 37 can be closely approached to the 2nd linear groove part 28 side, and the vicinity of the joint accommodating parts 33 and 34 can fully be heated with the piping 8 for heat medium accommodated in this. . In addition, the radius of curvature of the bent portion of the first folded groove 32 can be increased, and the heat medium pipe 8 can be bent easily in the first folded groove 32.

  Further, as shown in FIG. 5, the folding groove portion 29 is connected to the rear end portion of the second linear groove portion 28 after crossing the middle of the second linear groove portion 28 from the first linear groove portion 27 side. . By doing so, the space between the first linear groove portion 27 and the second linear groove portion 28 is narrowed, and the joint storage portion is formed by the heat medium pipe 8 stored in the first linear groove portion 27 and the second linear groove portion 28. The vicinity of 33 and 34 can be sufficiently heated. In addition, the radius of curvature of the bent portion of the folding groove 29 can be increased, and the heating medium pipe 8 can be easily bent in the folding groove 29.

  In addition, in this embodiment, although the three types of floor heating panels 1 of the 1st floor heating panel 3, the 2nd floor heating panel 4, and the 3rd floor heating panel 5 were illustrated, the floor heating panel 1 has other than this. In addition, there are those in which the width, the shape of the storage groove, and the number and position of the small joists 7 are appropriately changed. For example, the heat medium is circulated by connecting the heat medium pipe 8 to the heat medium pipe 8 provided in the other adjacent floor heating panel 1 in the same manner as the second floor heating panel 4, and Similar to the third floor heating panel 5, there is a floor heating panel having a width of 2/3 of the second floor heating panel 4. For example, the floor heating panel is provided adjacent to the third floor heating panel 5 shown in FIG. 4, and the heating medium pipe 8 is connected to the heating medium pipe 8 provided in the third floor heating panel 5. A heating medium is circulated. The storage grooves of the floor heating panels other than the illustrated floor heating panel 1 are also the same as the first linear groove portion 27, the second linear groove portion 28, the first joint storage portion 33, and the second joint storage as in the floor heating panel 1. A portion 34, a folding groove 29, and the like.

  In the present embodiment, the first joint storage portion 33 is formed at the connection portion between the folding groove portion 29 and the first linear groove portion 27, but is formed at a portion of the first linear groove portion 27 that is not connected to the folding groove portion 29. Also good. Further, although the second joint storage portion 34 is formed in a portion of the second linear groove portion 28 that is not connected to the folding groove portion 29, it may be formed in a connection portion between the second linear groove portion 28 and the folding groove portion 29.

DESCRIPTION OF SYMBOLS 1 Floor heating panel 25 1st piping introduction port 26 2nd piping introduction port 27 1st linear groove part 28 2nd linear groove part 29 Folding groove part 32 1st folding groove part 33 1st joint accommodating part 34 2nd joint accommodating part 35 1st One joint 36 Second joint 37 Second folding groove 39 Folding part

Claims (4)

A floor heating panel in which a storage groove for storing a heat medium pipe in the panel body is formed over the whole, and the first pipe is formed on a front end surface constituting one side of the two opposite sides of the panel body. An inlet and a second pipe inlet are formed ,
The receiving groove,
A first linear groove extending rearward from the first pipe inlet ;
A second linear groove extending rearward from the second pipe inlet ;
A folding groove formed on the front end of the panel body and connecting the first linear groove and the second linear groove;
Formed at the front end of the panel body and extending rearward from the rear end of the second linear groove, and then folded back to the front side on the opposite side of the first linear groove, A folded groove portion in which a portion on the downstream side of the portion housed in the straight groove portion is housed, and
A folded portion that extends to the front side, is folded back to the rear side at a position behind the folded groove portion, and accommodates a portion downstream of the portion accommodated in the folded groove portion of the heat medium pipe ; has,
To the first straight groove portion and the second linear grooves each, the joint housing portion widening the groove width for accommodating a joint for connecting the heat medium pipe pipes for other heat transfer medium is formed Floor heating panel characterized by.   2. The floor heating according to claim 1, wherein a portion of the folded groove portion extending rearward from the rear end portion of the second linear groove portion is positioned closer to the first linear groove portion than the folded portion. panel. The storage groove is formed at a front end portion of the panel body, extends from a portion folded back to the front side in the folded groove portion, and then folded back to the front side on the opposite side to the second linear groove portion. A portion that has two folded groove portions and that extends from the portion folded back to the front side of the folded groove portion in the second folded groove portion to the second linear groove portion side from the portion folded to the front side of the folded groove portion The floor heating panel according to claim 1, wherein the floor heating panel is located at a position. 4. The device according to claim 1, wherein the folding groove portion is connected to a rear end portion of the second linear groove portion after traversing the middle of the second linear groove portion from the first linear groove portion side. The floor heating panel of any one of Claims.

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