JP5391596B2 - Temperature control mat - Google Patents

Description

  The present invention relates to a temperature control mat for heating and cooling floors, walls, ceilings and the like of a building room.

  In the following description, the upper surface of the temperature control mat refers to the upper surface when the temperature control mat is applied on the floor, and the lower surface of the temperature control mat refers to the lower surface when the temperature control mat is applied on the floor. Say.

  Further, in the present invention, “folding the temperature control mat” means to fold the temperature control mat so that the upper surfaces of the substrates are overlapped with each other. It is said that it is folded so as to overlap.

  2. Description of the Related Art A floor heating structure in which a temperature control mat in which hot water piping is routed in a groove on the upper surface of a plate-like substrate is laid on the floor surface is well known.

  As this temperature control mat, there is a mat that can be folded as in Japanese Patent Laid-Open No. 2002-106865, and this substrate is developed and laid on a floor surface.

  In the temperature control mat of the same publication, the substrate is divided in the vicinity of the center in the lateral direction, and each of the divided substrates is divided into approximately three on one end side, the center side and the other end side in the vertical direction. Folding is possible at equally divided positions. The bisected substrates are connected to each other at one end in the longitudinal direction so as to be bendable via a hinge portion.

When the temperature control mat of the same publication is folded, each of the divided substrates is valley-folded between the other end side and the intermediate side in the vertical direction and between the intermediate side and the one end side. Alternatively, the folded parts are folded in three and folded into three layers, and then the hinges are valley-folded so that the lower surfaces of the substrates face each other, whereby the folded body shown in FIG.
JP 2002-106865 A

  In the valley fold line portion of the substrate facing the pipe housing groove, the bottom portion of the pipe housing groove is cleaved along the fold line portion as the substrate is folded. Therefore, when the substrate is valley-folded, the hot water pipe is exposed at the fold line portion. When the substrate is unfolded, the pipe housing groove approaches the hot water pipe from both sides of the valley fold line portion, and the hot water pipe is housed in the pipe housing groove so as to be sandwiched therebetween.

  However, when the substrate is folded in the valley, the hot water pipe is slightly pulled out from the pipe receiving grooves on both sides of the valley fold line portion and exposed to the valley fold line portion. There is a possibility that the hot water pipe is loosened only at the valley fold line, and the hot water pipe protrudes from the pipe housing groove.

  The present invention solves the above-mentioned conventional problems, and in the temperature control mat capable of folding the substrate, when the substrate is expanded and installed, the temperature adjustment pipe is accommodated in the valley folding line portion. An object of the present invention is to provide a temperature control mat that can be reliably accommodated in a groove.

The temperature control mat of the present invention (Claim 1 ) includes a substrate provided with a pipe housing groove on the upper surface, a temperature control pipe accommodated in the pipe housing groove, and the substrate provided on the substrate. A temperature control mat having a valley fold line portion for folding the valley, and the groove for accommodating the pipe and the temperature control pipe extend to the adjacent substrate through the valley fold line portion. In the pipe receiving groove, the portion facing the fold line for valley fold extends along the fold line for valley fold, and in the state where the temperature control mat is applied to the floor, At least the substrate lower surface side of the pipe housing groove along the fold line for valley folding is a widened portion whose width is larger than the outer diameter of the temperature control pipe, and the temperature control mat was applied to the floor. In the state, the width of the widened portion on the lower surface of the substrate is 1 to 5 times the outer diameter of the temperature control pipe, The pipe accommodating groove is exposed to the lower surface of the substrate, and the plurality of pipe accommodating grooves extend to the adjacent substrate via the valley fold line, respectively. The widened portion is formed so as to cut out the end portion of each substrate facing the fold line for valley fold between the pipe receiving grooves adjacent to each other in the extending direction of the fold line for valley fold. Thereby, the portions facing the fold line portion for valley fold of the groove for pipe accommodation adjacent to the extending direction of the fold line portion for valley fold communicate with each other via the widened portion, In the state where the temperature control mat is applied to the floor, the widened portion is characterized in that the width increases toward the lower surface side of the substrate.

The temperature control mat according to claim 2, Oite to claim 1, at a site remote from the valley fold for folding line portion, the lower surface of the substrate, and the backing sheet is provided for closing the groove tubing accommodating It is characterized by being.

In the temperature control mat of the present invention (Claim 1) , at least the substrate lower surface side of the pipe housing groove facing the fold line section for valley folding has a widened portion whose width is larger than the outer diameter of the temperature control pipe. Therefore, when the substrate is expanded and installed, the temperature adjusting pipe is smoothly accommodated in the pipe accommodating groove of the valley fold line portion. In other words, even if the temperature adjustment pipe is loosened at the valley fold line when the substrate is unfolded and its axis is shifted from the center in the width direction of the pipe receiving groove, the temperature adjustment pipe is securely connected via the widening section. It can be inserted into the receiving groove. In addition, the temperature adjustment pipe can be sufficiently accommodated in the pipe accommodation groove up to the slack. This prevents the temperature control pipe from protruding from the pipe housing groove in the valley fold line after the substrate is developed.

In the present invention, in a state where the construction of the temperature control mat on the floor, the width of the widened portion of the lower surface of the substrate, since the compressive yield strength of overly broad and temperature control mat decreases, 1 an outer diameter of the pipe for temperature control 5 Ru Baidea.

In this invention , in the state which applied the temperature control mat to the floor, it has comprised so that the width | variety of a wide part may become large as the lower surface side of a board | substrate. As a result, the temperature control pipe moves toward the center side in the width direction of the pipe housing groove as it enters the back side of the widened portion.

In the present invention, the substrate thickness is smaller as the pipe housing groove is exposed on the lower surface. According to the second aspect of the present invention, the strength of the substrate is ensured by providing a backing sheet for closing the pipe housing groove on the lower surface of the substrate. Moreover, heat radiation to the lower surface side of the substrate is also suppressed by this backing sheet.

Hereinafter, embodiments will be described with reference to the drawings. The following embodiment is an application example of the present invention to a floor heating mat. 1 to 9, 11, and 12 relate to reference examples.

[Floor heating mat 1 as a temperature control mat according to the first embodiment]
FIG. 1 is a plan view of a floor heating mat 1 as a temperature control mat according to the first embodiment, and FIG. 2 is an enlarged view of the vicinity of a fold line portion (near II in FIG. 1) of the floor heating mat 1. 3 is a sectional view taken along line III-III of FIG. 2, FIG. 4 is an exploded sectional view of the same part as FIG. 3, FIG. 5 is a sectional view taken along line V-V of FIG. FIG. 6 is a cross-sectional view of the same part as FIG. 5 showing a state where the floor heating mat 1 is folded, and FIG. 7 is a cross-sectional view of the same part as FIG. FIG. 8 is a cross-sectional view of the same portion as FIG. 5 showing the floor heating mat 1 after unfolding, and FIG. 9 is a plan view of the vicinity of the widened portion of the pipe housing groove after the floor heating mat 1 is unfolded. .

  In FIGS. 1, 2, and 9, the widened portion of the pipe housing groove, the heat equalizing sheet, and the heat equalizing plate are not shown. Further, in FIG. 2, the illustration of the hot water piping is also omitted.

  In this embodiment, the floor heating mat 1 is formed by arranging small rectangular mats A to H each having a substantially rectangular shape.

  As shown in FIG. 1, the small mats A to D are arranged in a line in this order, and the small mats E to H are arranged in a line so as to be adjacent to the small mats A to D in this order.

  The small mats A to D and E to H are arranged so that the long sides of each other abut each other. Further, between the rows of the small mats A to D and the rows of the small mats E to H, the small mats A and E, B and F, C and G, and D and H are short of each other. It arrange | positions so that edge | sides may be faced | matched.

Reference numeral T ₁ indicates a butt portion between the small mats A and B and between E and F, T ₂ indicates a butt portion between the small mats B and C, and between F and G, and T ₃ indicates the small mats C and D. during and G, it shows the butt portion between H, T ₄ denotes the butt portion between the rows of columns and a small mat E~H small mat to D.

In this embodiment, the floor heating mat 1 is valley-folded along the butted portions T ₁ and T ₃ between the small mats A and B, between E and F, between C and D, and between G and H, respectively. , small mat B, C and between F, mountain fold and along the butted portion T ₂ between the G, then the small mat a, by mountain fold along the butted portion T ₄ between E, it becomes foldable Yes. That is, in this embodiment, these abutting portions T ₁ through T ₄ are each a fold line portion of the floor heating mat 1, in particular butt portion T ₁ and T ₃ become a fold line portion for valley fold Yes. In addition, the folding method of the floor heating mat 1 is not limited to this.

Each of the small mats A to H includes a plurality of elongated substantially rectangular substrates 10 to 18 arranged with the small joists 30 and 30 ′ interposed therebetween, and pipe housing grooves provided on the upper surfaces of the substrates 10 to 18. 2, the hot water pipe 3 housed in the pipe housing groove 2 and routed around the top surfaces of the substrates 10 to 18, and the butted portions T _{1 to} T ₃ as fold line portions of the pipe housing groove. The widened portion 4 in which the width of the facing portion is larger than other portions, the soaking plate 6 disposed in the pipe housing groove 2, and the small mat so as to cover the hot water piping 3 and the soaking plate 6 A soaking sheet 7 attached to the upper surfaces of A to H and a backing sheet 8 attached to the lower surfaces of the substrates 10 to 18 so as to close the bottom of the pipe housing groove 2 are provided. The detailed configuration of the widened portion 4 will be described later.

  As shown in FIG. 4, in this floor heating mat 1, each board | substrate 10-18 is the thickness which the groove | channel 2 for piping accommodation exposes on each bottom face.

  As shown in FIG. 3, in this embodiment, the depth of the pipe housing groove 2 from the upper surface of each of the substrates 10 to 18 is substantially equal to the outer diameter of the hot water pipe 3. That is, the thickness of each of the substrates 10 to 18 is also substantially equal to the outer diameter of the hot water pipe 3.

  The hot water pipe 3 has a substantially circular cross-sectional shape in this embodiment.

  As shown in FIG. 4, in this embodiment, the cross-sectional shape in the direction orthogonal to the longitudinal direction of the pipe housing groove 2 (that is, the width direction of the pipe housing groove 2) is substantially rectangular. The width of 2 is substantially equal from the upper surface to the lower surface of each substrate 10-18.

  In the present invention, the outer diameter of the hot water pipe 3 is preferably 5 to 10 mm, particularly preferably 6 to 7 mm. Moreover, it is preferable that the thickness of each board | substrate 10-18 is 5-10 mm normally, especially 6-7 mm. In particular, the thickness of each of the substrates 10 to 18 is usually preferably the outer diameter of the hot water pipe 3 +0.03 to 1 mm, and particularly preferably the outer diameter of the hot water pipe 3 +0.08 to 0.1 mm.

  The backing sheet 8 is disposed along the lower surface of each substrate 10-18 so as to cover the pipe housing groove 2 exposed on the lower surface of each substrate 10-18, and is attached to the lower surface of each substrate 10-18 by an adhesive or the like. It is pasted.

  In this embodiment, each of the substrates 10 to 18 is provided with four pipe housing grooves 2. In this embodiment, the backing sheet 8 is in the form of a long and narrow strip, and covers the pipe housing grooves 2 one by one, but continuously covers a plurality of adjacent pipe housing grooves 2. It may be a thing, or may cover the substantially whole lower surface of each board | substrate 10-18.

  In this embodiment, the backing sheet 8 is made of a low thermal conductive material. As this low thermal conductive material, a nonwoven fabric, a synthetic resin sheet, paper, or the like can be used.

  The thermal conductivity of the backing sheet 8 is usually 0.02 to 0.5 W / m · k, particularly preferably 0.02 to 0.1 W / m · k.

  As shown in FIGS. 3 and 4, in the present embodiment, the heat equalizing plate 6 includes a U-shaped portion 6a along the inner surface of the pipe housing groove 2, and each substrate from both ends (upper ends) of the U-shaped portion 6a. It has a substantially Ω-shaped cross section having a pair of flange portions 6b extending laterally along the upper surface of 10-18.

  The U-shaped portion 6a of the heat equalizing plate 6 is disposed in the pipe accommodating groove 2, and from there, the hot water pipe 3 is accommodated in the U-shaped portion 6a so as to be accommodated in the pipe accommodating groove 2. Yes.

  The soaking plate 6 is made of a metal foil such as aluminum or copper. The thickness of the soaking plate 6 is usually 40 to 200 μm, particularly preferably 70 to 150 μm, and particularly preferably about 100 μm.

  The soaking sheet 7 has a size and shape that covers the entire top surface of the temperature control mat 1. The soaking sheet 7 is also made of a metal foil such as aluminum or copper. The thickness of the soaking sheet 7 is usually 30 to 200 μm, particularly 40 to 100 μm, and particularly preferably about 40 μm.

  As shown in FIGS. 2 and 3, in this embodiment, each of the small joists 30 and 30 ′ has the reinforcing plates 30b and 30b attached to the upper and lower surfaces of the strip-like small joist main body 30a with an adhesive or the like. It becomes. In this embodiment, the total thickness of the small joist main body 30a and the upper and lower reinforcing plates 30b, 30b is substantially the same as the thickness of each of the substrates 10-18.

  Each small joist 30 extends along the longitudinal side 21 of the adjacent substrates 10 to 18, and each upper surface and lower surface thereof are substantially flush with the upper and lower surfaces of the adjacent substrates 10 to 18, respectively. It is arranged like this.

  Hereinafter, the configuration of the small mats A to H will be described in more detail.

  In this embodiment, the small mats B and C and F and G are each formed by arranging two small mats having the same configuration with the vertical direction in FIG. Further, the small mats F and G are configured such that the long sides of the small mats B and C are extended to substantially the same length as the long side of the small mat E, and the other configurations are the same as those of the small mats B and C. It has become. The small mat H also has a configuration in which the long side of the small mat D is extended to substantially the same length as the long side of the small mat E, and the other configuration is the same as that of the small mat D.

  In this embodiment, the small mat A includes three rectangular substrates 10 to 12 and two small joists 30, 30 ′, with each longitudinal direction being the long side direction of each small mat A. The small mats A are alternately arranged in the short side direction.

  Each of the small mats B, C, F, and G includes four rectangular substrates 13 to 16 and three small joists 30, and the longitudinal directions of the small mats B, C, F, and G, respectively. As the long side direction, the small mats B, C, F, and G are alternately arranged in the short side direction.

  Each of the small mats D and H has two rectangular substrates 17 and 18 and one small joist 30 each having a longitudinal direction as a long side direction of each small mat D and H. It has a configuration in which D and H are alternately arranged in the short side direction.

  The small mat E has three rectangular substrates 10 to 12 and two small joists 30 alternately in the short side direction of the small mat E, with each of the long sides being the long side direction of the small mat E. It is the arrangement arranged in.

  Each board | substrate 10-18 is arrange | positioned so that each long side 21 may be faced | matched with adjacent small joists 30, 30 '. The lengths of the substrates 10 to 18 are substantially equal to the widths of the small mats A to H in the long side direction. Further, the length of each small joist 30, 30 'is shorter than the length of the adjacent substrates 10-18.

  A small joist 30 ′ between the substrates 10 and 11 of the small mat A includes a long long joist 31 and a short small joist 32. The long joist 31 is arranged with the end opposite to the small joist 32 aligned with one end of the substrates 10, 11. The small joist 32 has the end opposite to the long joist 31 as the substrate 10, 11. 11 is aligned with the other end. A space for piping is provided between the ends of the long and small joists 31 facing each other. The small joist A 30 between the substrates 11 and 12 of the small mat A has a space for piping passing between one end of the small mat A and the one end of the substrates 11 and 12, and the other end of the small mat A is the other of the substrates 11 and 12. It is arranged at the edge.

  The substrates 10 and 11 of the small mat A are connected by a connecting portion 33 formed so as to cross the space between the long and small joists 31 and 32. Further, the substrates 11 and 12 of the small mat A are connected by a connecting portion 33 formed so as to go around the other end side of the small joist 30 between them. The connecting portion 33 between the substrates 11 and 12 extends along the short side 20 (FIG. 2) of the substrates 11 and 12.

  In the small mats B, C, F, and G, each small joist 30 between the substrates 13 and 14 and between the substrates 15 and 16 is arranged so that one end is aligned with one end of each of the substrates 13 to 16. The small joists 30 between the substrates 14 and 15 are disposed so that the other ends are aligned with the other ends of the substrates 13 to 16. The substrates 13 and 14 and 15 and 16 are connected to each other by a connecting portion 33 formed so as to go around the other end side of the small joist 30 between them. The substrates 14 and 15 are connected to each other by a connecting portion 33 formed so as to go around the one end side of the small joist 30 therebetween. These connecting portions 33 also extend along the short sides 20 of the substrates 13 to 16.

  In the small mats D and H, the small joists 30 between the substrates 17 and 18 are arranged so that one end thereof is aligned with one end of the substrates 17 and 18. The substrates 17 and 18 are connected to each other by a connecting portion 33 formed so as to go around the other end of the small joist 30 therebetween. The connecting portion 33 also extends along the short side 20 of each of the substrates 17 and 18.

  In the small mat E, the small joist 30 between the substrates 10 and 11 is arranged so that one end thereof is aligned with one end of the substrates 10 and 11, and the small joist 30 between the substrates 11 and 12 is the other The ends are aligned with the other ends of the substrates 11 and 12. The substrates 10 and 11 of the small mat E are connected by a connecting portion 33 formed so as to go around the other end side of the small joist 30 between them. The substrates 11 and 12 of the small mat E are connected by a connecting portion 33 formed so as to go around the one end side of the small joist 30 between them. These connecting portions 33 also extend along the short sides 20 of the respective substrates 10 to 12.

  As shown in FIG. 1, the small mats A and E are arranged so that the substrate 12 abuts the substrates 13 of the small mats B and F, respectively. Further, the small mats C and G are arranged so that the respective substrates 16 are abutted against the substrates 16 of the small mats B and F with the vertical direction in FIG. Yes. The small mats D and H are arranged so that the respective substrates 17 abut against the substrates 13 of the small mats C and G, respectively.

  Hereinafter, the small joists A and D and the small joists 30 and 30 'of the small mats E and H are respectively arranged in the first row in order from the small joists 30, 30' arranged on the leftmost side in FIG. , 30th row, 30th row, 30th row, 30th row, 30th row, 30th row, 30th row, 30th row, 30th row, 30th row These are referred to as the small radish 30 of the eye, the small radish 30 in the eighth row, the small radish 30 in the ninth row, and the small radish 30 in the tenth row.

As FIG. 1, in this embodiment, in the column of the small mat to D, the butt portion T ₄ and the opposite end portion of the third column and subsequent odd-numbered column of the small joists 30 (hereinafter, each the end opposite to the butt portion T ₄ of the small joists 30, 30 'may be called outer edge portion.) is the side opposite the said butt portion T ₄ of the small mat A~D respectively (hereinafter, the the butted portion T ₄ of the small mat A~H opposite sides may be referred to the outer edges are aligned in.), the butted portion T ₄ side ends of the small joists 30 (hereinafter, the small joists 30, 30 the ends of the butted portion T ₄ side 'may be referred to the inner end portion.) and the small mat A~D of the butt portion T ₄ side edges (hereinafter butt of the small mat A~H the section T ₄ side edges may be referred to the inner side.) each connecting portion 33 in the space between the can Has been placed.

  The inner end portions of the small joists 30 in even rows in the rows of the small mats A to D are aligned with the inner sides of the small mats A to D, respectively. Connecting portions 33 are arranged in spaces between the outer sides of the mats A to D, respectively.

  In the rows of small mats E to H, the inner ends of the small joists 30 in the odd rows are aligned with the inner sides of the small mats E to H, respectively, and the outer ends of these small joists 30 and each small mat are arranged. The connection part 33 is arrange | positioned at the space between the outer sides of EH, respectively. Further, the outer ends of the small joists 30 in the even rows in the rows of the small mats E to H are aligned with the outer sides of the small mats E to H, respectively. Connecting portions 33 are arranged in spaces between the inner sides of the mats E to H, respectively.

  In this embodiment, a header (not shown) to which the hot water pipe 3 is connected is installed on the substrate 10 of the small mat E. The substrate 10 is formed with a rectangular notch-shaped header installation portion 10a at the corner opposite to the substrate 11 on the outer side, and the header is installed in the header installation portion 10a.

  Four pipe housing grooves 2 are provided on the top surfaces of the substrates 10 to 18, respectively.

  In the small mats B, C, F, and G substrates 14, 15 and the small mats D and H substrates 18 and the small mat E substrate 11, each of the four pipe housing grooves 2 is the substrate. 10, 11, 14, 15, 18 extends in a straight line along the long side 21 on the intermediate side of the long side 21 from both short sides 20, and in the vicinity of the short sides 20, It is curved in a substantially quadrant shape toward the connecting portion 33 that is continuous with the short side 20. Each piping accommodation groove | channel 2 which went to this connection part 33 from this curved part passes through this connection part 33, respectively, and is following to each piping accommodation groove | channel 2 of the board | substrates 10-18 adjacent.

  In the substrates 10 and 11 of the small mat A, each of the four pipe housing grooves 2 is along the longitudinal side 21 on the intermediate side of the longitudinal side 21 with respect to the short side 20 of the substrate 10. The pipe accommodating groove 2 that is closest to the small joist 30 'and the pipe accommodating groove 2 that is second closest to the small joist 30' are the substrates 10 and 11, respectively. In the vicinity of the connecting portion 33 between them, the outer side and the inner side of the small mat A are separated from the connecting portion 33. The outer side and the inner side of the pipe housing grooves 2 are curved in a substantially quadrant shape toward the connecting part 33 in the vicinity of the connecting part 33, respectively. The pipe accommodation groove 2 closest to the small joist 30 ', the outer sides of the pipe accommodation groove 2 closest to the small joist 30', the outer sides of the pipe accommodation groove 2 closest to the small joist 30 ', and the pipe accommodation closest to the small joist 30' The inner side sides of the groove 2 and the inner side sides of the pipe housing groove 2 that is second closest to the small joist 30 ′ are continuous via the connecting portion 33.

  In the substrate 10 of the small mat A, the pipe housing groove 2 closest to the small joist 30 'and the pipe housing groove 2 farthest from the small joist 30' are respectively on the outer side of the small mat A of the substrate 10. In the vicinity of the short side 20, they are curved in a substantially quadrant arc toward the middle side of the short side 20 and are continuous with each other. Further, the pipe housing groove 2 that is the second closest to the small joist 30 ′ of the substrate 10 and the pipe housing groove 2 that is the second most distant from the small joist 30 ′ are respectively on the outer side of the small mat A of the substrate 10. In the vicinity of the short side 20, they are curved in a substantially quadrant arc toward the middle side of the short side 20 and are continuous with each other.

  In the substrate 11 of the small mat A, the pipe housing groove 2 closest to the small joist 30 'and the pipe housing groove 2 farthest from the small joist 30' are respectively on the inner side of the small mat A of the substrate 10. In the vicinity of the short side 20, they are curved in a substantially quadrant arc toward the middle side of the short side 20 and are continuous with each other. Further, the pipe housing groove 2 that is the second closest to the small joist 30 ′ of the substrate 10 and the pipe housing groove 2 that is the second most distant from the small joist 30 ′ are respectively on the inner side of the small mat A of the substrate 10. In the vicinity of the short side 20, they are curved in a substantially quadrant arc toward the middle side of the short side 20 and are continuous with each other.

  In the vicinity of the short side 20 on the outer side of the small mat A of the substrate 11, each of the pipe housing grooves 2 is curved in a substantially quadrant arc shape toward the connecting portion 33 connected to the substrate 11. Through the connecting portion 33, the pipe accommodation groove 2 of the adjacent substrate 12 is continuous.

As shown in FIG. 1, in the substrate 10 of the small mat A, the end portion on the small mat E side of each pipe receiving groove 2 is the inner side of the substrate 10, that is, between the small mats A and E, respectively. It faces the butted portion _{T 4.} Also in the substrate 10 of the small mat E, the ends of the small mat A side of each pipe receiving groove 2, respectively, the inner sides of the substrate 10, i.e., a small mat A, face the butted portion T ₄ between E It is out. The each pipe receiving groove 2 of the small mat A side end portions of the pipes containment groove 2 of the small mat E side is facing across the butted portion T ₄ respectively, thereby, for the pipes accommodated groove 2 has, are continuous to the small mat E from a small mat a across the butt portion T _4.

Each pipe accommodating groove 2 of the substrate 10 of the substrate 10 and small mats E of the small mat A, respectively, are curved in a substantially arc shape in the vicinity of the butted portion T _4, thereby, each of the end the along the butted portion T ₄ has as extending. Note that the curved portion of the pipe receiving groove 2 of the bending portion of each pipe receiving groove 2 of the butt portion T ₄ sandwiched therebetween small mat A side and the small mat E side is curved in opposite directions, Thereby, each piping accommodation groove | channel 2 has extended in the substantially S shape from the small mat A side to the small mat E side.

  In the substrate 10 of the small mat E, the four pipe housing grooves 2 are all linear along the long side 21 on the intermediate side of the long side 21 with respect to the short side 20 of the substrate 10. It is extended. Among these, the pipe housing groove 2 closest to the small joist 30 between the substrates 10 and 11 and the pipe housing groove 2 second closest to the small joist 30 are on the outer side of the small mat E of the substrate 10. In the vicinity of the short side 20, it curves in a substantially quadrant shape toward the connecting portion 33 connected to the substrate 10, passes through the connecting portion 33, and forms the four pipe housing grooves 2 of the adjacent substrate 11. It continues to two of them.

  Each of the remaining two pipe housing grooves 2 of the substrate 10 has an end facing the header installation portion 10a on the outer side of the small mat E. Further, the remaining two strips that are not connected to the pipe housing groove 2 of the substrate 10 among the pipe housing grooves 2 of the adjacent substrate 11 also pass through the connecting portions 33 between the substrates 10 and 11, respectively. After entering the top, each end faces the header installation portion 10a.

Each mating portion T _{1 to} T ₃ between the small mats A and B, between B and C, between C and D, between E and F, between F and G, and between G and H (that is, the folding line of the floor heating mat 1) In each of the substrates 12, 13, 16, and 17 facing the portion), two of the four pipe accommodating grooves 2 (the pipe accommodating grooves 2a and 2b in FIG. 2) are respectively provided on the substrate. It extends linearly along the long side 21 on the intermediate side of the long side 21 with respect to the short sides 20 of 12, 13, 16, 17 and is connected to the connecting portion 33 of the substrates 12, 13, 16, 17 In the vicinity of the continuous short side 20, it is curved in a substantially quadrant arc shape toward the connecting portion 33. Hereinafter, of these, the one close to the small joist 30 adjacent to the substrates 12, 13, 16, and 17 is referred to as the first pipe housing groove 2 a, and the one far from the small joist 30 is the second pipe housing groove. 2b.

As shown in FIGS. 1 and 2, the first pipe housing groove 2 a has a substantially semicircular arc shape in the vicinity of the short side 20 on the side opposite to the connecting portion 33 of the substrates 12, 13, 16, and 17. turns, then extends so as to meander in a substantially S-shape, the end faces in the abutting portion _T 1 through T ₃ side of the longitudinal edges 21 of the substrate 12, 13, 16, 17. Further, the pipe receiving groove 2b of the second is curved to the butted portion _T 1 through T ₃ side on the way toward the other side of the short Tehen 20 and the connecting portion 33 of the substrate 12, 13, 16, 17, the end faces the said butt portion _T 1 through T ₃ side of the longitudinal edges 21 of the substrate 12, 13, 16, 17.

The remaining two pipe housing grooves 2 (pipe housing grooves 2c and 2d in FIG. 2) of each of the boards 12, 13, 16, and 17 are connected to the boards 12, 13, 16, and 17 from the connecting portion 33. The substrates 12, 13, 16, and 17 extend so as to cross in the substantially short side direction, and the respective ends are on the long sides 21 of the substrates 12, 13, 16, and 17 on the side of the abutting portions T _{1 to} T _3. I'm here. Hereinafter, among these, the side far from the short side 20 connected to the connecting portion 33 of the substrates 12, 13, 16, and 17 is referred to as a third pipe housing groove 2 c, and the side near the short side 20 is the fourth. This is referred to as a pipe housing groove 2d.

  The third pipe housing groove 2c and the fourth pipe housing groove 2d are curved and extended in a substantially quadrant arc shape so that the distance from the short side 20 increases as the distance from the connecting portion 33 increases. doing.

In the long side 21 on the abutting portion T _{1 to} T ₃ side of each of the substrates 12, 13, 16, and 17, the first piping from the short side 20 that is farther from the connecting portion 33 of the substrates 12, 13, 16, and 17. The distance to the end of the housing groove 2a facing the long side 21 is the distance from the short side 20 closer to the connecting part 33 to the end of the fourth pipe housing groove 2d facing the long side 21 It is almost equidistant. Further, the distance from the short side 20 far from the connecting portion 33 to the end facing the long side 21 of the second pipe housing groove 2b is from the short side 20 closer to the connecting portion 33 to the third side. The distance to the end of the pipe housing groove 2c facing the longitudinal side 21 is substantially equal.

Thus, between the adjacent small mats A and B and between the substrates 12 and 13 between E and F, between the small mats B and C, between the substrates 16 and 16 between F and G, and between the small mats C, D and between G, in between the substrates 13 and 17 to each other between the H, butted portion T ₁ fourth pipe accommodating the first pipe receiving groove 2a and the other substrate of one substrate sandwiching the through T ₃ Groove 2d, second pipe housing groove 2b of the one board and third pipe housing groove 2c of the other board, third pipe housing groove 2c of the one board and the other board The second pipe housing groove 2b, the fourth pipe housing groove 2d of the one board, and the ends of the first pipe housing groove 2a of the other board face each other, and these pipes receiving grooves 2a, 2d to each other, 2b, 2c each other, 2c, 2b and between 2d, 2a each other butted portion _T 1 ~ It has become a thing that each continuous across the _3.

Ends of these pipes accommodating groove 2a~2d is adapted to that respectively extending along the butted portion _T 1 through T ₃ side of the longitudinal sides 21 of each substrate 12, 13, 16, 17, The pipe housing grooves 2a to 2d are gently curved toward this end. In addition, as the first and second view, the pipe receiving groove 2a~2d facing each other across the respective butt portions T ₁ through T ₃ is curved so as to be convex toward the opposite side to each other, which Accordingly, these pipes accommodating groove 2a~2d is made, it is continuous in a substantially S-shape to the other substrate of each butt portions T ₁ through T ₃ from one substrate sandwiching.

Incidentally, the curved portion of the thus ends butted portion _T 1 through T ₃ (i.e. floor heating mat 1 of the folding line portion) faces the pipe receiving groove 2a~2d of the substrates 12, 13, 16, 17 are, As shown in FIGS. 1 and 2, it is preferable that each curve extends so as to draw a curve having a radius of curvature as large as possible. In particular, as shown in FIG. 2, the curvature radius of the curved portion of the third pipe housing groove 2c among the four pipe housing grooves 2a to 2d of the substrates 12, 13, 16, 17 is maximized. It is preferable to configure.

In this floor heating mat 1, the widening portion 4 is provided with each pipe accommodating groove facing each butting portion T _{1 to} T ₃ in each substrate 12, 13, 16, 17 as shown in FIGS. The width | variety of the edge part of 2a-2d is expanded rather than the other site | part of this groove | channel 2a-2d for this piping accommodation. The widened portion 4, as the inner wall surface of the end portion of the pipe receiving groove 2a~2d facing each butted portion T ₁ through T ₃ notched over a predetermined width in a direction away from said butt portion T ₁ through T ₃ Is formed.

  In this embodiment, as shown in FIGS. 2 and 9, between the adjacent ends of the first pipe housing groove 2a and the second pipe housing groove 2b, and for the third pipe housing. The widened portion 4 is formed so as to cut out the long sides 21 of the substrates 12, 13, 16, and 17 between the ends of the groove 2c and the fourth pipe housing groove 2d. Accordingly, the end portions of the first pipe receiving groove 2a and the second pipe receiving groove 2b and the end portions of the third pipe receiving groove 2c and the fourth pipe receiving groove 2d are widened. It communicates via the part 4.

  In this embodiment, as shown in FIG. 5, the widened portion 4 is substantially equal in width from the lower surface to the upper surface of each substrate 12, 13, 16, 17 in the state where the floor heating mat 1 is expanded. . The widened portion 4 is also exposed on the lower surface of each of the substrates 12, 13, 16, and 17, similarly to the other portions of the pipe housing groove 2.

  In the present invention, the width W (FIG. 5) of the widened portion 4 is larger than the outer diameter of the hot water pipe 3, and particularly 1.1 to 5 times the outer diameter of the hot water pipe 3, It is preferably 2 to 3 times.

The hot water pipe 3 is housed in the pipe housing groove 2 and the widened portion 4 and is continuously drawn around the substrates 10 to 18, and continues to the small mats A to H across the T _{1 to} T _4. Have been drawn around.

In this embodiment, as described above, the portion crossing the respective butt portions T ₁ through T ₄ of the pipe receiving groove 2, as respectively, extending along the butt portion T ₁ through T ₄ It has become. Therefore, the portion of the hot water pipe 3 that crosses each of the butted portions T _{1 to} T ₄ also extends along the butted portions T _{1 to} T ₄ by being housed in the pipe housing groove 2. .

Therefore, between these abutting portions _T 1 substrate along through T ₄ A, B, B, between C, C, between D, E, between F, F, between G, G, H and between A, between E When bent, the hot water pipe 3 bends so that the portions crossing the butted portions T _{1 to} T ₄ are twisted around their respective axes as shown in FIG. As a result, the hot water pipe 3 is buckled as it is bent between the substrates A and B, between B and C, between C and D, between E and F, between F and G, between G and H, and between A and E. It is prevented from being damaged.

In this embodiment, the hot water pipe 3 has one end connected to the header in the header installation portion 10a, it is routed to the substrate 10 of the small mat A across the butted portion T ₄ from the substrate 10 of the small mat E, then The small mat A substrate 10 passes through the connecting portions 33 and the small mat A substrates 11 and 12, the small mat B 13 to 16, the small mat C substrates 16 to 13, and the small mat D substrate 17. It is routed to the substrate 18 of the small mat D, and then makes a U-turn with the substrate 18 of the small mat D, and again each connection portion 33 and the substrate 17 of the small mat D, the substrates 13 to 16 of the small mat C, substrate of small mats D 16-13, back to the substrate 10 of the small mat a through the substrate 12, 11 of the small mat a, then, the small mat E across the butted portion _{T 4} from the substrate 10 of the small mat a On the substrate 10 Next, from the substrate 10 of this small mat E, each connecting portion 33 and the substrates 11, 12 of the small mat E, 13-16 of the small mat F, substrates 16-13 of the small mat G, small mat H The small mat H is passed through the substrate 17 to the substrate 18 of the small mat H. Then, the substrate 18 of the small mat H is U-turned. The substrates 13 to 16, the substrates 16 to 13 of the small mat F and the substrates 12 and 11 of the small mat E are returned to the substrate 10 of the small mat E, and the other end is connected to the header.

  In addition, the piping route of the hot water piping 3 is not limited to this.

As shown in FIGS. 3 to 8, in this embodiment, the soaking sheet 7 that covers the top surfaces of the small mats A and B, the soaking sheet 7 that covers the top surfaces of the small mats C and D, and the top surfaces of the small mats E and F are used. The soaking sheet 7 covering the upper surface and the soaking sheet 7 covering the upper surfaces of the small mats G and H are respectively continuous across the butted portions T ₁ and T ₃ therebetween. The small mat B, C, and between the small mat F, between G is soaking sheets 7 are divided respectively, along the butted portion T _2. Furthermore, the soaking sheet 7 covering the columns of the small mat to D, the soaking sheet 7 covering the columns of small mats E-H, are divided along the butted portion T _4.

As a result, in this embodiment, the small mats A and B and between E and F, and between C and D and between G and H can be folded along the butted portions T ₁ and T ₃ respectively. The mats B, C, F, G, and small mats A, E can be folded along the butt portions T ₂ and T ₄ , respectively.

As described above, the floor heating mat 1 configured as described above is between the small mats A and B, between E and F, between C and D, and between G and H along the abutting portions T ₁ and T ₃ , respectively. while the valley fold, folded by small mat B, C and between F, along the butted portion T ₂ between G mountain fold, and then mountain fold along the small mat a, between E in the abutting portion T ₄ Shipped in the state.

As the valley folds along the abutting portions T ₁ and T ₃ , as shown in FIG. 6, the substrates 12 and 13 facing each abutting portion T ₁ and T ₃ (between the small mats A and B and between E and F). ) And the substrates 16 and 17 (between the small mats C and D and between G and H), respectively, and the hot water pipe 3 is exposed at the butted portions T ₁ and T ₃ . In this case, with the cleavage of the substrate, the hot water pipe 3 is exposed to the butted portion _T 1, the butt portion slightly pulled out from both sides of the pipe receiving groove 2a~2d of _{T 3 T} 1, _{T 3.}

  At the time of construction, the folding body of the floor heating mat 1 is carried into the construction site, and between the small mats A and B, between B and C, between C and D, between E and F, between F and G, between G and H, The fold between A and E is opened, and the floor heating mat 1 is spread on the floor.

In the this floor heating mat 1, the ends of the pipes containment groove 2a~2d facing each butted portion T _1, T ₃ is the width than other portions of the pipe receiving groove 2a~2d respectively since a wide widened portion 4, upon installation by deploying floor heating mat 1 is accommodated smoothly pipe accommodating groove 2a~2d hot water pipe 3 is across each butt portions T _1, T ₃ The That is, as shown in FIGS. 7 to 9, when the floor heating mat 1 is unfolded, the hot water pipe 3 is slackened at each of the abutting portions T ₁ and T ₃ , and the axial center is from the center in the width direction of the pipe housing grooves 2 a to 2 d. Even if it is shifted, the hot water pipe 3 can be surely inserted into the pipe housing grooves 2 a to 2 d via the widened portion 4. Further, the hot water pipe 3 can be sufficiently accommodated in the pipe accommodating grooves 2a to 2d up to the amount of the slack. Accordingly, the hot water pipe 3 in floor heating mats each butted portion T ₁ after deployment of _1, T ₃ is prevented protrude from the pipe receiving groove 2 a to 2 d.

In this embodiment, each of the substrates 10 to 18 has a smaller thickness as the pipe housing groove 2 provided on the upper surface is exposed to the lower surface, but each of the butted portions T ₁ and T _3. Then, since the hot water pipe 3 is accommodated in the widened portion 4, even if the thickness of the substrates 10 to 18 is reduced in this way, it is possible to sufficiently prevent the hot water pipe 3 from protruding from the pipe accommodating grooves 2a to 2d. Can do.

  In addition, since the thickness of each board | substrate 10-18 was made so small that the groove | channel 2 for piping accommodation was exposed to each lower surface in this way, the whole thickness of the floor heating mat 1 is also very small.

  In this embodiment, since the backing sheet 8 is attached to the lower surface of each of the substrates 10 to 18 so as to close each of the pipe housing grooves 2, the strength on the lower surface side of each of the substrates 10 to 18 is also ensured. The Further, the backing sheet 8 also suppresses heat radiation from the pipe housing grooves 2 to the lower surfaces of the substrates 10 to 18.

  Although illustration is omitted, in the case of constructing a heating floor using the floor heating mat 1, the floor heating mat 1 is laid on a floor base (for example, an existing floor in the case of floor reform), Lay the finished flooring. As described above, since the floor heating mat 1 is small in thickness, the difference between the level of the floor where the floor heating mat 1 is laid and the floor level of the room where the floor heating mat 1 is not laid. Can be kept small.

  In addition, since the floor heating mat 1 is small in this way, the floor level is excessive even if a thick flooring material laid on the floor heating mat 1 is used. It is prevented from becoming high. Thus, the strength and rigidity of the constructed heating floor can be increased by using the finished floor material having a large thickness. In addition, the degree of freedom in selecting the finishing floor material is increased.

[Another configuration example of widened part]
FIG. 10 is a cross-sectional view of the same portion as FIG. 5 showing another configuration example of the widened portion.

As shown in FIG. 10, the widened portion 4A of this embodiment has a substantially trapezoidal cross-sectional shape in which the width is increased toward the lower surface side of each of the substrates 12 and 13 when the floor heating mat is developed. The width W ₁ of the substrate lower surface of the enlarged width portion 4A in a developed state of the floor heating mat, similar to the widened portion 4 in the embodiment described above, it is preferable that 2 to 5 times the outer diameter of the hot water pipe 3 . In this embodiment, the width W ₂ of the substrate top surface side of the enlarged width portion 4A in a developed state of the floor heating mat is slightly wider than the width and or substantially equal to other portions of the pipe receiving groove 2a~2b It has become a thing.

Even in this widened portion 4A, since the lower surface side of the substrate is wide, the warm water pipe 3 is slackened at the butting portions T ₁ and T ₃ when the floor heating mat is deployed, and its axis is the pipe receiving grooves 2a to 2d. Even if it deviates from the center, the hot water pipe 3 can surely enter the pipe housing grooves 2a to 2d through the widened portion 4A. Further, since the width of the widened portion 4A is narrower toward the substrate upper surface side, the warm water pipe 3 moves toward the center of the pipe housing grooves 2a to 2d as it enters the deeper side of the widened portion 4A.

  In this embodiment, the widened portion 4A has a cross-sectional shape in which the width decreases from the lower surface to the upper surface of the substrate, but the width gradually increases from the middle portion in the substrate thickness direction to the lower surface side. A cross-sectional shape having substantially the same width may be formed from the middle part to the upper surface side. However, the shape of the widened portion is not limited to the above shapes.

[Floor heating mat 1A as a temperature control mat according to another embodiment]
FIG. 11 is a sectional view of a floor heating mat 1A as a temperature control mat according to another embodiment, and FIG. 12 is an exploded sectional view of the floor heating mat 1A. 11 and 12 show a cross section of the same part as in FIG. 3 described above.

  This floor heating mat 1A is the same as that of the floor heating mat 1 of FIGS. 1 to 10 described above (the substrates 10 to 12 and 16 to 18 are not shown in FIGS. 9 and 10; the same applies hereinafter). In addition, a pipe housing groove 2A having a substantially U-shaped cross section is formed instead of the pipe housing groove 2 having a substantially square cross section.

  As shown in FIGS. 11 and 12, the cross-sectional shape of the pipe housing groove 2 </ b> A is a substantially U-shape that is curved in a semicircular arc shape so that the bottom thereof is along the outer surface of the hot water pipe 3. The vicinity of the center in the width direction of the bottom of the pipe housing groove 2 passes through the substrates 10 to 18 and is exposed on the lower surfaces of the substrates 10 to 18.

  Other configurations of the floor heating mat 1A are the same as those of the floor heating mat 1 shown in FIGS. 1 to 10, and the same reference numerals in FIGS. 11 and 12 as those in FIGS.

  In this floor heating mat 1A, since the cross-sectional shape of each pipe accommodation groove 2A is substantially U-shaped, the width of each pipe accommodation groove 2A exposed on the lower surface of each substrate 10-18 is reduced. Yes. By comprising in this way, the thermal radiation from each piping accommodation groove | channel 2A to the lower surface of each board | substrate 10-18 is suppressed.

  In addition, even if it exists in this floor heating mat 1A, the effect similar to the floor heating mat 1 of FIGS. 1-10 is show | played.

[Materials]
Although the following are mentioned as an example of the material of said each member, It is not limited to these.

  As the substrate, for example, foamed synthetic resin such as foamed polypropylene, foamed polystyrene, foamed polyethylene, and foamed polyurethane, as well as wood and the like can be used. The foamed synthetic resin is preferably one in which the internal bubbles are closed cells from the viewpoint of heat insulation.

  In the present invention, the backing sheet is preferably made of a low thermal conductive material as described above. As this low thermal conductive material, a nonwoven fabric, a synthetic resin sheet, paper, or the like can be used.

  As the small joist, wood, synthetic wood capable of nailing, synthetic resin, synthetic resin foam or the like is preferable.

  When the reinforcing plates 30b and 30b are attached to the upper and lower surfaces of the small joist body 30a like the small joists 30 and 30 'in the above-described embodiments, for example, a plywood or the like is used as the small joist main body 30a. As the reinforcing plate 30b, a metal plate or metal foil, a resin plate, or a plate material made of a composite material of metal and resin can be used. In this case, the thickness of the reinforcing plate 30b is set such that a nail enters the reinforcing plate 30b.

  However, the configuration of Kokoneta is not limited to this. For example, in the present invention, the reinforcing plate may be provided only on one of the upper surface or the lower surface of the small joist body. Further, the reinforcing plate may be omitted if the small joist body has sufficient strength.

  As the soaking sheet and soaking plate, a metal foil such as aluminum or copper is preferable.

  By laminating a film of polyethylene terephthalate or the like on the surface of the soaking sheet, it is possible to prevent the soaking sheet from being damaged when the temperature control mat is packed or transported. The material of this film may be other than polyethylene terephthalate.

  Examples of the hot water pipe include a synthetic resin tube such as flexible polyethylene and a copper pipe.

[Other configurations]
Each of the above embodiments shows an example of the present invention, and the present invention is not limited to the illustrated configuration.

  The number of substrates constituting the temperature control mat of the present invention is not particularly limited, and the temperature control mat may be configured using a number of substrates other than those described above.

  In the present invention, a low thermal conductive material may be provided inside the pipe housing groove so as to close the bottom of the groove. In addition, when a soaking plate is provided, a low heat conductive material may be attached to the outer surface of the soaking plate. By comprising in this way, the thermal radiation to the lower surface side of a board | substrate is further suppressed.

  In the present invention, a penetration preventing layer having penetration resistance may be provided at least below the backing sheet. By configuring in this way, for example, even if the surface of the floor foundation is rolled up and sharply pointed spines protrude, the spines are prevented from penetrating the backing sheet and sticking into the temperature control pipe.

  As this penetration prevention layer, the single layer or multilayer sheet made from a synthetic resin is suitable.

  When a temperature control mat is constructed by laying a temperature control mat on an existing floor coated with wax, the heat from the temperature control mat may cause the wax on the existing floor surface to melt. In this case, when a person walks on the temperature control floor, the temperature control mat may slide on the existing floor and make a sound due to the melted wax.

  Therefore, in this invention, you may provide the wax absorption layer which consists of paper or a nonwoven fabric under the penetration prevention layer. By configuring in this way, even if the wax on the existing floor surface melts, the wax is absorbed by the wax absorption layer, so that the temperature control mat can be prevented or suppressed from making a sound.

  In the present invention, the penetration preventing layer itself may be made of paper or non-woven fabric, and the penetration preventing layer itself may be configured to absorb wax.

  Although the above embodiment relates to a floor heating mat, the temperature adjustment mat of the present invention may be arranged on a wall, a ceiling, or the like. Moreover, you may make it cool by passing cold water instead of warm water through piping. You may distribute | circulate heat media, such as oil other than water and antifreeze.

It is a top view of floor heating mat 1 as a temperature regulation mat concerning a 1st embodiment. It is an enlarged view of the fold line part vicinity of the floor heating mat 1 of FIG. It is sectional drawing which follows the III-III line of FIG. FIG. 3 is an exploded cross-sectional view of the same portion as FIG. 2. It is sectional drawing which follows the VV line of FIG. It is sectional drawing of the same part as FIG. 5 which shows the state which carried out the valley folding of the floor heating mat. It is sectional drawing of the same part as FIG. 5 which shows the middle time of expansion | deployment of the floor heating mat. It is sectional drawing of the part similar to FIG. 5 after the expansion | deployment of the floor heating mat. It is a top view near the widening part of the groove | channel for piping accommodation after the expansion | deployment of the floor heating mat 1. FIG. It is sectional drawing which shows another structural example of a wide part. It is sectional drawing of the floor heating mat 1A as a temperature control mat which concerns on another embodiment. It is a disassembled sectional view of the floor heating mat 1A of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1A Floor heating mat 2,2a-2d, 2A Piping accommodation groove 3 Warm water piping 4,4A Widening part 6 Soaking plate 6a U-shaped part 6b Flange part 7 Soaking sheet 8 Backing sheet 10-18 Substrate 30 Small Joist 30a kokonta main body 30b reinforcing plate

Claims (2)

A substrate having a pipe housing groove on its upper surface;
A temperature control pipe housed in the pipe housing groove;
A fold line portion for valley fold provided on the substrate for valley folding the substrate;
In the temperature control mat, the pipe accommodating groove and the temperature control pipe extend to the adjacent substrate through the valley fold line portion,
The portion facing the valley fold line portion of the pipe accommodating groove extends along the valley fold line portion,
In a state where the temperature control mat is applied to the floor, at least the lower surface side of the pipe housing groove along the valley fold line portion has a widened portion whose width is larger than the outer diameter of the temperature control pipe; And
In the state where the temperature control mat is applied to the floor, the width of the widened portion on the lower surface of the substrate is 1 to 5 times the outer diameter of the temperature control pipe,
The substrate has a thickness such that the pipe housing groove is exposed on the lower surface of the substrate,
A plurality of the pipe-accommodating grooves each extend to the adjacent substrate through the valley fold line,
The widened portion is formed so as to cut out the end portion of each substrate facing the fold line for valley fold between the pipe receiving grooves adjacent to each other in the extending direction of the fold line for valley fold. Has been
Thereby, the portions facing the valley fold line portion of the pipe accommodating groove adjacent to the extending direction of the valley fold line portion communicate with each other via the widened portion,
In the state which applied this temperature control mat to the floor, this widening part becomes wide as the lower surface side of a board | substrate, The temperature control mat characterized by the above-mentioned. Oite to claim 1,
The temperature control mat is characterized in that a backing sheet for closing the pipe housing groove is provided on the lower surface of the substrate at a portion separated from the valley fold line portion.

Images