JP2010156479A - Substrate for temperature control mat, substrate connecting body for temperature control mat and temperature control mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a substrate for a temperature control mat capable of improving flexibility of length adjustment of temperature control piping. <P>SOLUTION: A floor heating mat 1 includes a connecting body of the substrates A-H. Each of two grooves out of each groove group of a resin board 12 of the substrate A, a resin board 23 of the substrate C, a resin board 28 of the substrate E and a resin board 41 of the substrate H includes: first short grooves 45a, 45b extended from a portion near the edge on the front side of the resin board to a portion near the middle of the resin board in the longitudinal direction; second short grooves 46a, 46 extended from a portion near the edge on the back side of the resin board to the portion near the middle of the resin board in the longitudinal direction; a first connecting groove 47 for interconnecting ends on the back sides of the first short grooves 45a, 45b adjacent to each other; and a second connecting groove 48 for interconnecting ends on the front sides of the second short grooves 46a, 46b adjacent to each other. Since each warm water piping 4 is arranged in the first or second connecting groove 47, 48, the warm water piping 4 can be laid so as to be folded back in the vicinity of the middle in the extending direction of each resin board. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  A temperature control mat substrate in which a groove group including a plurality of temperature control pipe installation grooves extending from one end side vicinity portion to the other end side vicinity portion of the substrate is provided on the plate surface of the substrate; The temperature control mat substrate connecting body in which a plurality of temperature control mat substrates are connected, and a plurality of temperature control pipes are provided in the temperature control pipe disposing groove of the temperature control mat substrate connecting body. Related to temperature control mat.

  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 is well known.

  Japanese Patent Application Laid-Open No. 2002-106865 describes a temperature control mat in which a plurality of temperature control mat substrates are connected and a hot water pipe is disposed across these substrates. FIG. 12 is a plan view of the temperature control mat of the same number, and FIG. 13 is a sectional view taken along line XIII-XIII in FIG.

The temperature control mat 100 includes two substrates 101 and 102 each having a substantially rectangular plate shape. These substrates 101 and 102 are arranged so that the long sides of each of the substrates abut each other. In the same publication, these substrates 101 and 102 are described as a substantially rectangular substrate having a size obtained by dividing these substrates into two portions in the vicinity of the middle in the short side direction. Reference numeral T ₁₀₀ indicates a butt side between the substrates 101 and 102. Hereinafter, one end side in the long side direction (lower side in FIG. 12) of these substrates 101 and 102 is referred to as the near side, and the other end side in the long side direction (upper side in FIG. 12) is referred to as the back side. The horizontal direction in FIG. 12 is sometimes referred to as the horizontal direction.

  A plurality of small joists 103 are arranged on the plate surfaces of the substrates 101 and 102 at intervals in the long side direction of the substrates 101 and 102, respectively. Each small joist 103 extends in the short side direction of each substrate 101, 102. Hereinafter, in the respective substrates 101 and 102, the first row to the tenth row of the small joist 103 are sequentially referred to from the foremost small joist 103 to the innermost small joist 103. Each of the small joists 103 in the odd-numbered columns in each of the substrates 101 and 102 is disposed so that the left end faces the left side of each of the substrates 101 and 102, and each of the small joists 103 in the even-numbered columns has each of the substrates 101 and 102 on the right end. It is arranged so as to face the right side. The right end side of each small joist 103 in the odd row is separated from the right side of each substrate 101, 102 by a predetermined distance, and the left end side of each small joist 103 in the even row is from the left side of each substrate 101, 102. They are separated by a predetermined distance.

  Between the right end side of each small joist 103 in the odd-numbered column and the right side of each substrate 101, 102 in each substrate 101, 102, and the left end side of each small joist 103 in the even-numbered column and the left side of each substrate 101, 102 Between, each is a space for piping (not described in the same number).

  Of the plate surfaces of the substrates 101 and 102, the short side on the near side of the substrates 101 and 102 and the small joists 103 in the first row, the adjacent small joists 103 and 103, and the tenth row Between the small joist 103 and the short side on the back side of the substrates 101 and 102 (hereinafter, these are collectively referred to as each small joist 103), from the vicinity of the left side of the substrates 101 and 102 to the vicinity of the right side, respectively. A groove group comprising four hot water pipe disposing grooves (hereinafter sometimes simply referred to as grooves) 104 extending toward the section is provided. Hereinafter, in each substrate 101, 102, from the groove group between the short side on the near side of the substrate 101, 102 and the first row of small joists 103, the tenth row of small joists 103 and the substrates 101, 102 of The first to eleventh groove groups are sequentially called up to the groove group between the short side on the back side. Further, in each groove group, the first to fourth rows of grooves 104 are sequentially referred to from the foremost groove 104 to the innermost groove 104.

  Each groove 104 extends in a straight line substantially parallel to each small joist 103 from the vicinity of the left side to the vicinity of the right side of each substrate 101, 102.

In the first groove group of the substrate 101, the grooves 104 in the first row and the second row are connected to the right side of the substrate 104, and each right end is near the corner on the right front side of the substrate 101. It faces the abutting edges _{T 100.} Further, in the second groove group of the substrate 101, the grooves 104 in the third row and the fourth row extend toward the near side in the vicinity of the right side of the substrate 101, and the first row of the substrate 101 After passing through a pipe routing space on the right end side of the small joist 103, it extends to the right and continues to the right side of the substrate 101. That is, the right end of each of the grooves 104 in the third and fourth rows of the second groove group is also adjacent to each of the grooves 104 in the first and second rows of the first groove group. It faces the side T ₁₀₀ butt near the corners of the front.

  The right end side of each of the grooves 104 in the third and fourth rows of the first groove group of the substrate 101 passes through a pipe routing space on the right end side of the small joist 103 in the first row of the substrate 101, respectively. It is connected to the right end side of each groove 104 in the second row and the first row of the second groove group.

  In the first groove group of the substrate 101, the left end sides of the grooves 104 in the first row and the fourth row, and the left end sides of the grooves 104 in the second row and the third row, respectively, In the vicinity of the left side of each other.

The left end side of each groove 104 of the first groove group of the substrate 102 is connected to the left side of the substrate 102. That is, the left end of each groove 104 of the first groove group of the substrate 102 faces the abutting side T ₁₀₀ in the vicinity of the left front corner of the substrate 102. In the developed state of the temperature control mat 100, first the left end of the groove 104 of the groove group, the first column of the first groove group of the substrate 101 across the butt edges T ₁₀₀ and two rows of the board 102 It faces the right end of each groove 104 in the eye and the right end of each groove 104 in the third and fourth rows of the second groove group of the substrate 101. As a result, the grooves 104 continuously extend from the substrate 102 to the substrate 101.

  A header installation space is provided near the corner on the right front side of the substrate 102. The right end side of each groove 104 of the first groove group of the substrate 102 is connected to the end side on the near side of this header installation space. The right end side of each groove 104 of the second groove group of the substrate 102 passes through the pipe routing space on the right end side of the small joist 103 in the first row of the substrate 102, and the end on the far side of this header installation space It is connected to.

  In each of the substrates 101 and 102, the left end sides of the grooves 104 of the second and third groove groups, the right end sides of the grooves 104 of the third and fourth groove groups, the fourth and fifth grooves, respectively. Left ends of the grooves 104 in the group, right ends of the grooves 104 in the fifth and sixth groove groups, left ends of the grooves 104 in the sixth and seventh groove groups, seventh and eighth The right end sides of the grooves 104 of the groove group, the left end sides of the grooves 104 of the eighth and ninth groove groups, the right end sides of the grooves 104 of the ninth and tenth groove groups, and the tenth and tenth The left end sides of the grooves 104 of the eleven groove groups are continuous with each other through the pipe routing space on the left end side or the right end side of the small joists 103 of the substrates 101 and 102, respectively.

  In the eleventh groove group of each substrate 101, 102, the right end sides of the first row and second row grooves 104, and the right end sides of the third row and fourth row grooves 104, respectively, In the vicinity of the right side of the substrates 101 and 102, they are continuous with each other.

  As a result, the substrate surfaces of the substrates 101 and 102 extend from the front side of the substrates 101 and 102 to the back side of the substrates 101 and 102 by bypassing the small joists 103, respectively. , 102 makes a U-turn near the corner on the right rear side, and again circulates the plate surface of each substrate 101, 102 so as to bypass each small joist 103 again and return to the front side of each substrate 101, 102. A groove 104 is formed.

Both ends of the groove 104 of the two rows that visited the plate surface of the substrate 101, respectively, across the sides T ₁₀₀ butt near the corners of the right front side of the substrate 101 extends to the vicinity of a corner portion of the right front side of the substrate 102 , It is connected to the front edge of the header installation space. In addition, both end sides of the two grooves 104 that circulate the plate surface of the substrate 102 pass through the pipe routing space on the right end side of the small joist 103 in the first row of the substrate 102, respectively. It is connected to the edge on the far side.

  A header 105 is installed in the header installation space. Four hot water pipes 106 are connected to the header 105.

  Generally, the header 105 is connected to a hot water inlet to which a hot water supply pipe from the heat source machine is connected, a hot water outlet to which a hot water return pipe to the heat source machine is connected, and a hot water pipe 106. There are a hot water outlet and a hot water return port, an outgoing communication channel connecting the hot water inlet and each hot water outlet, and a return communication channel connecting the hot water outlet and each hot water return port. is doing. In the same number, the header 105 has four hot water outlets and four hot water return ports. One end of each hot water pipe 106 is connected to the hot water outlet, and the other end of each hot water pipe 106 is connected to the hot water return opening. As a result, four hot water flow paths are formed from the hot water inlet to the hot water outlet through each of the hot water outlet, each hot water outlet, each hot water pipe 106, each hot water return port and the return side communication channel. Has been.

  Two of the four hot water pipes 106 are respectively routed by two grooves 104 that circulate around the plate surface of the substrate 101, and the remaining two are two grooves that circulate around the plate surface of the substrate 102. 104 are respectively routed.

This temperature control mat 100 is laid on the floor of the room, a hot water supply pipe from the heat source machine is connected to the hot water inlet of the header 105, and a hot water return pipe to the heat source machine is connected to the hot water outlet, A flooring material is laid on the temperature control mat 100 to construct a heating floor. The warm water from the heat source machine flows through each hot water pipe 106 to perform floor heating.
JP 2002-106865 A

  In the temperature control mat disclosed in Japanese Patent Application Laid-Open No. 2002-106865, between each small joist 103 of the substrates 101 and 102, each of the hot water pipe disposing grooves 104 is located near the right side from the vicinity of the left side of each of the substrates 101 and 102. It extends to the department. Therefore, the hot water pipes 106 are also routed between the small joists 103 from the vicinity of the left side of the substrates 101 and 102 to the vicinity of the right side according to the extending route of the groove 104. For this reason, the length of each hot water pipe 106 is substantially an even multiple of the distance from the vicinity of the left side of each substrate 101, 102 to the side of the right side, including the forward path side and the return path side.

  However, when the length of each hot water pipe 106 is limited in this way, the difference in circulation pressure loss between the hot water circulation paths may not be sufficiently reduced.

  That is, in the header 105 having a plurality of warm water outlets and warm water return ports, the flow pressure in each communication channel increases as the length of the communication channel from the warm water inlet to each warm water outlet increases. Loss also increases. Therefore, in order to reduce the difference in the flow pressure loss between the hot water flow paths, the larger the flow path length of the communication flow path from the hot water inlet to the hot water outlet, the higher the temperature of the hot water pipe 106 connected to this hot water outlet. It is conceivable to shorten the length.

  However, as described above, the length of each hot water pipe 106 is substantially an even multiple of the distance from the vicinity of the left side of each substrate 101, 102 to the vicinity of the right side. The minimum unit for changing is substantially twice the distance from the vicinity of the left side of the substrates 101 and 102 to the vicinity of the right side. Therefore, when the length of each hot water pipe 106 is changed, the fluctuation amount of the flow pressure loss of each hot water flow path becomes large. Therefore, the distribution pressure loss of each warm water circulation channel cannot be finely adjusted, and the difference in the circulation pressure loss between the warm water circulation channels may not be sufficiently reduced.

  The present invention relates to a temperature control mat substrate capable of improving the degree of freedom in adjusting the length of the temperature control pipe, a temperature control mat substrate coupling body having the temperature control mat substrate, and the temperature control mat. It is an object of the present invention to provide a temperature control mat in which a temperature control pipe is provided in a temperature control pipe installation groove of a substrate connection body.

  The temperature control mat substrate of the present invention (invention 1) has a plurality of temperature control pipe installation grooves extending from the vicinity of one end of the substrate toward the vicinity of the other end of the substrate. In the temperature control mat substrate provided with a groove group comprising at least two adjacent temperature control pipe installation grooves from the vicinity of one end side of the substrate to the middle in the extending direction of the groove group A first short groove extending, a second short groove extending from the vicinity of the other end side of the substrate to the middle of the extending direction of the groove group, and the other end of the adjacent first short groove It has the 1st connecting groove which connects the edge parts of a side, and the 2nd connecting groove which connects the edge parts of this one end side of an adjacent 2nd short groove.

  A temperature control mat substrate according to a second aspect of the present invention is the temperature control mat substrate according to the first aspect, wherein the first connecting groove is curved so as to protrude toward the second short groove side, and the second connecting groove is It is characterized by being curved so as to protrude toward the short groove side of 1.

  The substrate connection body for temperature control mats according to claim 3 is formed of a plurality of temperature control pipe installation grooves extending from the vicinity of one end of the substrate toward the vicinity of the other end on the plate surface of the substrate. A plurality of temperature control mat substrates provided with groove groups, and a plurality of temperature control pipes connected to the header are arranged across a plurality of temperature control mat substrates. In the connected body, a part of the temperature control mat substrate comprises the temperature control mat substrate according to claim 1 or 2.

  According to a fourth aspect of the present invention, there is provided a temperature control mat according to the third aspect, and a plurality of temperature control pipes arranged in the temperature control pipe arrangement groove of the temperature control mat board connection body. The temperature control mat is provided, wherein at least a part of the temperature control pipe is disposed in the first or second connecting groove.

  The temperature control mat according to claim 5 is the temperature control mat according to claim 4, wherein a header having a plurality of temperature control medium outlets and temperature control medium return ports is installed on the temperature control mat, and one end of each temperature control pipe is connected to the temperature control mat. It is connected to the medium adjustment port, and the other end is connected to the temperature adjustment medium return port.

  A temperature control mat according to a sixth aspect of the present invention is the temperature control mat according to the fifth aspect, wherein the header includes an inlet for the temperature control medium from the heat source unit and an outlet for the temperature control medium to the heat source unit. The flow pressure loss of the temperature control medium flow path from the temperature control medium outlet, the temperature control piping and the temperature control medium return port to the outlet is substantially the same in each temperature control medium flow path. is there.

  In the temperature control mat substrate of the present invention, at least among the groove group consisting of a plurality of temperature control pipe installation grooves extending from the vicinity of one end side to the vicinity of the other end side of the substrate. Two adjacent temperature control pipe installation grooves are a first short groove extending from the vicinity of one end side of the substrate to the middle of the extending direction of the groove group, and a vicinity of the other end side of the substrate. The first short-circuit connecting the second short groove extending from the groove group to the middle of the groove group and the other end side of the adjacent first short groove (that is, the second short groove side). And a second connecting groove that connects the ends of the adjacent second short grooves on one end side (that is, the first short groove side). That is, according to the present invention, a single temperature control mat substrate has a groove extending from the vicinity of one end side of the substrate to the vicinity of the other end side, and a groove folded back on the center side of the substrate. It can be set as the structure which mixed. Therefore, by arranging the temperature control piping in the first or second connecting groove, the temperature control piping is located in the middle of the extending direction of the groove group, that is, from the vicinity of the one end side and the vicinity of the other end side of the substrate. It can be routed so as to be folded at the center of the substrate.

  At least a part of the temperature control mat substrate assembly constituting the temperature control mat is configured by the temperature control mat substrate of the present invention, and the temperature control pipe is arranged in the first or second connecting groove of the substrate. By installing, the temperature control piping can be routed in this substrate so as to be folded in the middle of the extending direction of the groove group, so the temperature control piping is always routed from the vicinity of one end side of each substrate to the vicinity of the other end side. There is no need, and the degree of freedom in adjusting the length of the temperature control piping is high.

  As in claim 2, the first connecting groove is curved so as to protrude toward the second short groove, and the second connecting groove is protruded toward the first short groove. By bending, the temperature control pipe is buckled from one adjacent first short groove to the other first short groove, or from one adjacent second short groove to the other second short groove. It is possible to bend along each connecting groove without being pulled.

  According to the present invention, the temperature control mat substrate of the present invention is appropriately disposed on at least a part of the temperature control mat substrate connector, and each temperature control pipe is provided in the first or second connecting groove of the substrate. The length of each temperature control pipe | tube can be finely adjusted by arrange | positioning and drawing around so that it may be turned in the middle of the extension direction of a groove group. Accordingly, as in claims 5 and 6, a header having a plurality of temperature control medium outlets and temperature control medium return ports is installed in the temperature control mat, and each temperature control is made from the temperature control medium inlet of the header. When a plurality of temperature control medium flow paths are formed through the medium outlet, each temperature control pipe, and each temperature control medium return port to the temperature control medium outlet of the header, the flow pressure in each temperature control medium distribution path It is possible to make the loss substantially equal. This prevents or suppresses temperature unevenness between the substrates.

  In the present invention, the distribution pressure loss in each temperature control medium distribution path is substantially equivalent means that the difference in the distribution pressure loss between the temperature control medium distribution paths is preferably 0 to 10 kPa, particularly about 0 to 5 kPa. That means.

  Hereinafter, embodiments will be described with reference to the drawings. Each of the following embodiments is an application example of the present invention to a floor heating mat. Each of the following embodiments is an example of the present invention, and the present invention can take other forms than the following embodiments.

[Floor heating mat 1 as a temperature control mat according to the first embodiment]
FIG. 1 is a plan view of the floor heating mat 1 according to the first embodiment, FIG. 2 is a plan view of the floor heating mat 1 in which a heat equalizing sheet is omitted, and FIG. 3 is III-III in FIG. FIG. 4 is an exploded sectional view of the same part as FIG. 5, FIG. 5 is a sectional view taken along the line V-V of FIG. 1, and FIG. 6 constitutes the floor heating mat 1. FIG. 7 is a plan view of the board A, FIG. 7 is a plan view of a plate-like piece having first and second connecting grooves, and FIG. 8 is a plan view of the vicinity of the header of the floor heating mat 1.

  As shown in FIG. 1, the floor heating mat 1 has a substantially rectangular plan view shape. Hereinafter, the long side direction (the left-right direction in FIG. 1) of the floor heating mat 1 is referred to as the left-right direction, and one end side (the lower side in FIG. 1) in the short side direction is referred to as the front side. The end side (upper side in FIG. 1) is called the back side.

In this embodiment, the area of the upper surface of the floor heating mat 1 is 11.8 m ² . The width in the long side direction and the width in the short side direction of the floor heating mat 1 are each substantially an integral multiple of 303 mm. In the present invention, “substantially 303 mm” indicates that a dimensional error of about ± 0 to 30 mm is allowed. Preferably, this tolerance is on the order of ± 5 mm.

  In this embodiment, the floor heating mat 1 includes a substrate connection body in which substantially rectangular substrates A to H are arranged, and a hot water pipe disposition groove 3 provided on the upper surfaces of the substrates A to H, respectively. And a hot water pipe 4 accommodated in the groove 3 and routed to the substrates A to H, a header 5 to which the temperature control pipe 4 is connected, and the upper surfaces of the substrates A to H so as to cover the groove 3. And so on.

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

  The substrates A to D and E to H are arranged so that the long sides of the substrates abut each other. Further, between the rows of the substrates A to D and the rows of the substrates E to H, the substrates A and E, B and F, C and G, and D and H respectively have short sides of each other. It is arranged so as to face each other.

Reference numeral T ₁ indicates a butt side between the row of the substrates A to D and the row of the substrates E to H, T ₂ indicates a butt side between the substrates A and B, and T ₃ indicates a position between the substrates B and C. T ₄ represents the abutting side between the substrates C and D, T ₅ represents the abutting side between the substrates E and F, T ₆ represents the abutting side between the substrates F and G, and T ₇ represents A butt side between the substrates G and H is shown.

In this embodiment, the floor heating mat 1 includes abutting sides T _{2 to} T between the substrates A and B, between B and C, between C and D, between E and F, between F and G, and between G and H, respectively. while valley folded along a _7, by mountain fold along the side T ₁ butt between the rows of columns and substrate E~H substrate to D, and has a foldable.

  The substrates A to H have a configuration in which a plurality of strip-like (elongated rectangular) resin boards 11 to 42 and a plurality of small joists 2 are alternately arranged in the short side direction of the substrates A to H. ing. These resin boards 11 to 42 and small joists 2 are arranged with the longitudinal direction of each of the substrates A to H as the long side direction.

  The substrate A is composed of four resin boards 11 to 14 and three small radish 2, and the substrate B is composed of five resin boards 15 to 19 and four small radish 2, and a substrate C Is composed of four resin boards 20 to 23 and three small radish 2, and the substrate D is composed of three resin boards 24 to 26 and two small radish 2, and the substrate E is The substrate F is composed of four resin boards 27 to 30 and three small joists 2. The substrate F is composed of five resin boards 31 to 35 and four small joists 2. The substrate G is four sheets. The resin boards 36 to 39 and the three small joists 2 are formed, and the substrate H is composed of three resin boards 40 to 42 and two small joists 2.

Each of the resin boards 11 to 42 is disposed so that the long side of each resin board abuts the small joists 2. In the state in which the floor heating mat 1 is unfolded, the rear side edges of the resin boards 11 to 26 of the substrates A to D are the front side edges of the resin boards 27 to 42 of the substrates E to F, respectively. It has been matched. Between the substrates 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 abutting sides T _{2 to} T ₇ ), the resin boards 14 and 15 19, 20, 23, 24, 30, 31, 35, 36, and 39, 40 are abutted without sandwiching the small joist 2 respectively.

  In this embodiment, the center-to-center distance (arrangement pitch) in the width direction between adjacent small joists 2 and 2 is substantially 303 mm. The width of each small joist 2 is preferably 10 to 80 mm, particularly preferably 40 to 50 mm.

  The widths of the resin boards 11 to 13, 16 to 18, 21, 22, 25, 26, 27 to 29, 32 to 34, 37, 38, 41, and 42 are respectively determined based on the arrangement pitch of the small joists 2. The dimension obtained by subtracting the width of the small joist 2 is preferably 223 to 293 mm, particularly preferably 263 to 253 mm.

  The widths of the resin boards 14, 15, 19, 20, 23, 24, 30, 31, 35, 36, 39, and 40 that are faced without sandwiching the small joist 2 are resin boards 11 to 13, 16 to 18, 21. 22, 25, 26, 27 to 29, 32 to 34, 37, 38, 41, 42, that is, preferably 111.5 to 146.5 mm, particularly preferably 131.5 to 126.5 mm. ing.

  In this embodiment, the length of each resin board 11-40 is made into the half of the width | variety of the short side direction of the floor heating mat 1. As shown in FIG.

  The length of the small joist 2 between the resin boards 33 and 34 is substantially equal to the length of each of the resin boards 11 to 42, and the small joist 2 is arranged with both ends aligned with the resin boards 33 and 34. Yes. The lengths of the other small joists 2 other than this are shorter than the lengths of the resin boards 11 to 42 by a predetermined dimension.

  Between resin boards 11, 12, 13, 14, 16, 17, 18, 19, 21, 22, 22, 24, 25, 27, 28, 29, 30, 32, 33, 34, 35 Between each other, between 37 and 38 and between 40 and 41, each small joist 2 is disposed with its front end aligned with the front edge of each resin board 11-42. Moreover, the end part of the back side of these small joists 2 is located in the front side of the predetermined distance rather than the end side of the back side of each resin board 11-42.

  Among these, the small joists 2 between the resin boards 16, 17 and 18, 19 are shorter than the other small joists 2 by a predetermined length. A short small joist 2 'is provided. The end of the small joist 2 on the back side and the end of the short joist 2 'on the near side are separated from each other by a predetermined distance. Each short joist 2 'is arranged with its back end aligned with the back end of each resin board 16-19.

  Between resin boards 12 and 13, between 15 and 16, between 17 and 18, between 20 and 21, between 22 and 23, between 25 and 26, between 28 and 29, between 31 and 32, between 36 and 37, 38 and 39 Between each and between 41 and 42, each small joist 2 is arrange | positioned, aligning the edge part of each back | inner side to the edge of the back | inner side of each resin board 11-42. Moreover, the near end of these small joists 2 is located on the far side by a predetermined distance from the near sides of the resin boards 11 to 42.

  Among these, the small joist 2 between the resin boards 17 and 18 is shorter than the other small joists 2 by a predetermined length in the same manner as the small joists 2 between the resin boards 16 and 17 and 18 and 19. A short small joist 2 'is disposed on the front side of the small joist 2. The front end of the small joist 2 is separated from the end of the short joist 2 'by a predetermined distance. This short radish 2 'is shorter in length than the other short radish 2', and the front end of the short radish 2 'is approximately the same as the other small radish 2 from the front side edges of the resin boards 17 and 18. Is also located on the back side.

  Between resin boards 11, 12, 13, 14, 21, 22, 24, 25, 27, 28, 29, 30, 32, 33, 34, 35, 37, 38 and 40, 41 In between, these resin boards 11, 12, 13, 14, 21, 22, 24, 25, 27, 28, The connection part 43 which connects 29,30, 32,33, 34,35, 37,38, and 40,41 is formed.

  Also, between the resin boards 12, 13, 15, 16, 17, 18, 20, 21, 22, 23, 25, 26, 28, 29, 31, 32, 36, 37, 38 , 39 and 41, 42, these resin boards 12, 13, 15, 16, 17, 18, so as to wrap around the front end of each small radish 2 or short radish 2 ′, respectively. The connection part 43 which connects 20, 20, 21, 22, 23, 25, 26, 28, 29, 31, 32, 36, 37, 38, 39 and 41, 42 is formed. ing.

  Further, between the resin boards 16, 17, 17, 18, and 18, 19, the resin boards 16, 17, 17, , 18 and 18, 19 are connected to each other.

  These connecting portions 43 are formed integrally with adjacent resin boards 11 to 42, respectively.

  The width in the small joist direction of each connecting portion 43 is preferably 10 to 80 mm, particularly preferably 40 to 50 mm.

  In this embodiment, a header installation space 44 is provided on the resin board 17 of the substrate B arranged on the near side of the floor heating mat 1 near the middle in the left-right direction. The header installation space 44 is formed such that the front side edge of the resin board 17 is partially cut out into a substantially rectangular shape. The header 5 is installed in the header installation space 44.

  As shown in FIG. 8, the header 5 includes a hot water inlet 5a and a hot water flow to which a hot water supply pipe (not shown) from the heat source machine and a hot water return pipe (not shown) to the heat source machine are respectively connected. The outlet 5b, six hot water outlets 5c to which the hot water pipe 4 is connected and the warm water return port 5d, and the outgoing side communication channels (not shown) for connecting the hot water inlet 5a and the hot water outlets 5c. And a return side communication channel (not shown) for connecting the hot water outlet 5b and each hot water return 5d.

  In the header 5, the hot water outlet 5c and the hot water return port 5d are paired to form a hot water circulation circuit (hot water circulation path). That is, the header 5 is a six-circuit header that forms six hot water circulation circuits.

  As shown in FIG. 8, the hot water inlet 5 a and the hot water outlet 5 b are disposed on the side surface on the front side of the header 5. Further, three hot water outlets 5 c and three hot water return ports 5 d are alternately arranged on the left and right side surfaces of the header 5.

In this embodiment, the floor heating mat 1 includes a first area A ₁ composed of the resin board 17 having the header installation space 44 and the resin board 18 on the right side thereof, and the resin board on the left side of the first area A _1. a second area _{a 2} consisting of 11 to 16, a third area _{a 3} consisting of the right side of the resin board 19-26 of the first area _{a 1,} the left end from the back side of lateral direction of the intermediate vicinity of the floor heating mat 1 a fourth area _{a 4} consisting of a resin board 27-33 up, is divided into a fifth area _{a 5} consisting of the right side of the resin board 34-42 of the fourth area _{a 4.}

The first area A ₁ preferably occupies 5 to 20%, particularly preferably 9 to 12% of the entire top surface of the floor heating mat 1, and the second to fifth areas A _{2 to} A ₅ are preferably respectively It occupies 20 to 45%, particularly preferably 28 to 37%, of the entire upper surface of the floor heating mat 1.

As shown in FIG. 2, on the upper surface of the first area A each resin boards 17 and 18 _1, the grooves 3 of each pipe distribution設用is 6 Retsunobe設. That is, in each of the resin boards 17 and 18, one groove group is constituted by these six rows of grooves 3. Hereinafter, in each of the resin boards 17 and 18, these grooves 3 are arranged in order from the left side in the first row of grooves 3, the second row of grooves 3, the third row of grooves 3, the fourth row of grooves 3, and the fifth row. It is called groove 3 and groove 3 in the sixth row.

Further, as shown in FIG. 2, on the upper surface of the resin board 11～16,19～42 of the second to fifth areas _A 2 to A _5, respectively, the groove 3 of the pipe distribution設用4 Retsunobe It is installed. That is, in each resin board 11-16, 19-42, one groove group is constituted by these four rows of grooves 3, respectively. Hereinafter, also in each resin board 11-16, 19-42, these groove | channels 3 are made into the groove | channel 3 of the 1st row | line | column, the groove | channel 3 of the 2nd row | line | column, the groove | channel 3 of the 3rd row | line, and the groove | channel 3 of the 4th row | line | column in order from the left side. Call it.

In this embodiment, in the second to fifth areas A _{2 to} A ₅ (resin boards 11 to 16, 19 to 42), the amount of hot water piping per unit area (m ² ) is preferably 10 The grooves 3 are arranged in the resin boards 11 to 16 and 19 to 40 so as to be ˜15 m / m ² , particularly preferably 12 to 14 m / m ² .

  Most of each groove 3 extends from the vicinity of the front edge of the resin boards 11 to 42 toward the vicinity of the rear edge. In the resin boards 17 and 18, the center-to-center distance (arrangement pitch) in the width direction between the adjacent grooves 3 and 3 is preferably 25 to 55 mm, particularly preferably 30 to 55 mm. In the resin boards 11 to 16 and 19 to 40, the arrangement pitch of the grooves 3 is preferably 60 to 80 mm, and particularly preferably 70 to 80 mm.

Each groove 3 of the resin board 17 extends so as to wrap around the left side of the header installation space 44 in the vicinity of the front end portion of the resin board 17, and each front end portion of the resin board 17 has this header side. It faces the left side of the installation space 44. The grooves 3 in the first to third rows of the resin board 17 enter the resin board 16 through the connecting portions 43 between the resin boards 17 and 16 on the back side of the resin board 17. The second row to the fourth row of the grooves 3 are connected to the end on the back side. Each groove 3 from the fourth row of the sixth column of the resin board 17, respectively, are connected with the back side of the edge of the resin board 17, facing the side T ₁ butt end of each該奥side the Yes.

  The grooves 3 in the first to third rows of the resin board 18 pass through the connecting portion 43 between the small joist 2 and the short joist 2 'between the resin boards 17 and 18 on the front side of the resin board 18, respectively. Extends to the resin board 17. Further, the grooves 3 in the fourth to sixth rows of the resin board 18 pass through the connecting portion 43 on the front side of the short joist 2 ′ between the resin boards 17 and 18 on the front side of the resin board 18. It extends to 17. These grooves 3 extend so as to wrap around the right side of the header installation space 44, and the front end of each of the grooves 3 faces the right side of the header installation space 44.

Groove 3 from the first column of the third column of the resin board 18, respectively, are connected with the back side of the edge of the resin board 18, facing the side T ₁ butt end of each該奥side the . The grooves 3 in the fourth to sixth rows of the resin board 18 enter the resin board 19 through the connecting portions 43 between the resin boards 18 and 19 on the back side of the resin board 18. Are connected to end portions on the back side of the grooves 3 in the first to third rows.

The groove 3 in the first row of the resin board 16 enters the resin board 17 through the connecting portion 43 between the resin boards 17 and 16 on the back side of the resin board 16, and the edge on the back side of the resin board 17. It is connected to. That is, on the back side of the resin board 17, the end portion of the groove 3 in the first row of the resin board 16 and the end portion of each groove 3 in the fourth to sixth rows of the resin board 17 are respectively abutting sides T. ₁

The groove 3 in the fourth row of the resin board 19 enters the resin board 18 through the connecting portion 43 between the resin boards 18 and 19 on the back side of the resin board 19, and the edge on the back side of the resin board 18. It is connected to. That is, on the back side of the resin board 18, the end portion of the groove 3 in the fourth row of the resin board 19 and the end portion of each groove 3 in the first to third rows of the resin board 18 are respectively abutting sides T. ₁

Each groove 3 across the butt edge T ₁ and the resin board 17 opposite to the resin board 33, respectively are continuous with the front end sides of the resin board 33, each of該手front end abutting edges It faces the T _1. Also, abutting edges each groove in across the T ₁ and the resin board 18 opposite to the resin board 34 3, respectively are continuous with the front end sides of the resin board 34, the ends of each該手front side It faces the butt edges _{T 1.}

In the developed state of the floor heating mat 1, the end portions of the respective grooves of the resin board 33 side 3 of the butt edges T ₁ in each groove 3 of the resin board 17 side that faces and face each other, a resin board 18 side The end of each groove 3 faces the end of each groove 3 on the resin board 34 side. As a result, the four grooves 3 are continuously extended from the resin board 17 to the resin board 33, and the four grooves 3 are continuously extended from the resin board 18 to the resin board 34. Become. Incidentally, as FIG. 2, the grooves 3, respectively, extend in a substantially S-shaped from the resin board 17, 18 toward resin board 33, crossing the butt edges _{T 1} of the grooves 3 part, respectively, has become that extends in a substantially lateral direction along the butt edges T _1.

Each groove 3 of the resin board 14 facing the butted side T ₂ is connected to each groove 3 of the resin board 13 through the connecting portion 43 between the resin boards 13 and 14 on the back side of the resin board 14. The grooves 3 in the first and second rows of the resin board 14 extend from the connecting portion 43 toward the front side of the resin board 14, and then abut each other in the vicinity of the front side edge of the resin board 14. It bends to the side T ₂ and each end faces the butt side T ₂ . The grooves 3 in the third row and the fourth row of the resin board 14 respectively extend from the connecting portion 43 toward the butt side T ₂ , and the ends of the grooves 3 are near the end side on the back side of the resin board 14. It faces the side _{T 2.}

Each groove 3 of the resin board 15 on the opposite side of the resin board 14 across the butted side T ₂ passes through the connecting portion 43 between the resin boards 15 and 16 on the front side of the resin board 15. It is connected to the groove 3. The grooves 3 in the first row and the second row of the resin board 29 respectively extend from the connecting portion 43 to the butt side T ₂ , and the ends of the grooves 3 are near the end side on the near side of the resin board 15. It faces the side _{T 2.} The grooves 3 in the third row and the fourth row of the resin board 15 extend from the connecting portion 43 toward the back side of the resin board 15 and then abut each other in the vicinity of the end on the back side of the resin board 15. It bends to the side T ₂ and each end faces the butt side T ₂ .

In a state where the floor heating mat 1 is unfolded, the ends of the grooves 3 in the first row of the resin boards 14 and 15 facing the abutting side T ₂ , the ends of the grooves 3 in the second row, the grooves in the third row 3 end portions and end portions of the grooves 3 in the fourth row face each other, whereby the grooves 3 continuously extend from the resin board 14 to the resin board 15. Incidentally, as FIG. 2, also the grooves 3, respectively, extend in a substantially S-shaped from the resin board 14 toward the resin board 15, the portion crossing the side T ₂ butt of these grooves 3 are each , it has become that extends along the butt edges T _2.

As Figure 2, in this embodiment, sandwiched butt structure of the resin board 19, 20 across the side _{T 3,} structure of the resin board 30 and 31 sandwiching the side _{T 5} butt, the side _{T 6} butt as well structure of the resin board 35 and 36, respectively, have the same configuration as the resin board 14, 15 sandwiching the butt edges _{T 2.} That is, the resin boards 14 and 15 and the resin boards 19, 20, 30, 31, 35, and 36 are configured by a common resin board.

Also, as Figure 2, butt configuration configuration and abutting the resin board 39, 40 across the side _{T 7} of the resin board 23, 24 across the side _{T 4,} respectively, sandwiching the butt edges _{T 2} resin It is symmetrical with the configuration of the boards 14 and 15. That is, the resin boards 23, 24, 39, and 40 are constituted by resin boards that are formed symmetrically with the resin boards 14 and 15.

  In the resin boards 11 and 27, the first row of grooves 3 and the fourth row of grooves 3 are continuous in the vicinity of the front edge of the resin boards 11 and 27, respectively. The groove 3 in the row and the groove 3 in the third row are continuous.

  Further, in the resin boards 26 and 42, the first row of grooves 3 and the fourth row of grooves 3 are continuous in the vicinity of the inner edge of the resin boards 26 and 42, respectively. The second row of grooves 3 and the third row of grooves 3 are continuous.

  Other than the above, the resin boards 11-13 connected by the connection part 43, 20-23, 24-26, 27-30, 31-33, 34, 35, 36-39, and 40- Between 42, each groove | channel 3 of these resin boards has passed through this connection part 43, respectively.

  Between the resin boards adjacent to each other with the connecting portion 43 interposed therebetween, the first row of grooves 3 of one resin board and the fourth row of grooves 3 of the other resin board are continuous via the connecting portion 43. The groove 3 in the second row of the one resin board and the groove 3 in the third row of the other resin board are continuous, and the groove 3 in the third row of the one resin board and the groove 3 of the other resin board The groove 3 in the second row is continuous, and the groove 3 in the fourth row of the one resin board and the groove 3 in the first row of the other resin board are continuous.

  In this floor heating mat 1, two grooves in each of the groove groups of the resin board 12 of the substrate A, the resin board 23 of the substrate C, the resin board 28 of the substrate E, and the resin board 41 of the substrate H are respectively provided. In the middle of the extending direction of the groove group, it extends so as to be turned back and front.

  FIG. 6 is an enlarged view of the substrate A. That is, as shown in FIG. 6, in the resin board 12 of the substrate A, the grooves 3 in the third row and the fourth row in the groove group are respectively from the vicinity of the edge on the front side of the resin board 12. First short grooves 45a and 45b extending to the middle of the resin board 12 in the longitudinal direction, and extending from the vicinity of the inner edge of the resin board 12 to the middle of the resin board 12 in the longitudinal direction. The second short grooves 46a and 46b, the first connecting grooves 47 that connect the end portions on the back side of the adjacent first short grooves 45a and 45b, and the front of the adjacent second short grooves 46a and 46b. It has the 2nd connecting groove 48 which connects the edge parts of the side.

  The lengths of the first short grooves 45a and 45b may be equal to the lengths of the second short grooves 46a and 46b, and one may be longer than the other.

  The first connecting groove 47 is curved so as to protrude toward the back side, and the second connecting groove 48 is curved so as to protrude toward the near side. The curvature radii of the connecting grooves 47 and 48 are larger than the minimum bending radius of the hot water pipe 4 (the minimum radius when the hot water pipe 4 is bent without buckling). These connecting grooves 47 and 48 are separated from each other. The distance at the closest part between these connecting grooves 47 and 48 is preferably 0 to 80 mm, particularly preferably about 0 to 30 mm.

  Although detailed illustration is omitted, in the resin board 23 of the substrate C, the grooves 3 in the first row and the second row in the groove group are respectively formed from the vicinity of the end side on the near side of the resin board 23. The first short grooves 45a and 45b extending to the vicinity of the middle in the longitudinal direction of the resin board 23 and the vicinity of the end side on the back side of the resin board 23 to the middle of the resin board 23 in the longitudinal direction. The second short grooves 46a, 46b, the first connecting grooves 47 that connect the end portions on the back side of the adjacent first short grooves 45a, 45b, and the front side of the adjacent second short grooves 46a, 46b It has what has the 2nd connecting groove 48 which connects the edge parts.

  In the resin board 28 of the substrate E, the grooves 3 in the first row and the second row in the groove group are respectively in the longitudinal direction of the resin board 28 from the vicinity of the end side on the front side of the resin board 28. First short grooves 45a and 45b extending to the vicinity of the middle, and second short grooves 46a extending from the vicinity of the end side on the back side of the resin board 28 to the vicinity of the middle in the longitudinal direction of the resin board 28, 46b, the first connecting groove 47 that connects the end portions on the back side of the adjacent first short grooves 45a, 45b, and the first connecting portion that connects the end portions on the near side of the adjacent second short grooves 46a, 46b. 2 connecting grooves 48.

  In the resin board 41 of the substrate H, the grooves 3 in the first row and the second row in the groove group are respectively in the longitudinal direction of the resin board 28 from the vicinity of the end side on the near side of the resin board 28. First short grooves 45a and 45b extending to the vicinity of the middle, and second short grooves 46a extending from the vicinity of the end side on the back side of the resin board 28 to the vicinity of the middle in the longitudinal direction of the resin board 28, 46b, the first connecting groove 47 that connects the end portions on the back side of the adjacent first short grooves 45a, 45b, and the first connecting portion that connects the end portions on the near side of the adjacent second short grooves 46a, 46b. 2 connecting grooves 48.

Thus, the substrate B, and the upper surface of A as a whole, extends across the edges T ₂ in the order of the resin board 17 to 11 butt with a header installation space for 44 through each connecting portion 43, the resin board 11 A U-turn is returned to the resin board 12 in the vicinity of the end side on the front side of the resin, and a U-turn is returned to the resin board 11 near the middle in the longitudinal direction of the resin board 12 (second connecting groove 48). A continuous groove 3 is formed so as to make a U-turn again in the vicinity of the front edge of the board 11 and extend in the order of the resin boards 17 to 11 and return to the header installation space 44.

On the upper surfaces of the substrates B to D, as a whole, the resin boards 17 to 26 extend in the order of the resin boards 17 to 26 through the connecting portions 43 from the header installation space 44 and across the butted sides T ₃ and T _4. The U-turn is returned to the resin board 23 in the vicinity of the edge on the back side of the resin, and the U-turn is returned to the resin board 26 near the middle in the longitudinal direction of the resin board 23 (second connecting groove 48). A continuous groove 3 is formed so as to make a U-turn again in the vicinity of the edge on the back side of the board 26 and extend in the order of the resin boards 26 to 17 and return to the header installation space 44.

As a whole, the upper surfaces of the substrates B, F, E cross the butted sides T ₁ , T ₅ from the header installation space 44, and extend in the order of the resin boards 17, 33 to 27 through the respective connecting portions 43. A U-turn is made in the vicinity of the front side edge of the resin board 27 to return to the resin board 28, and a U-turn is made near the middle in the longitudinal direction of the resin board 28 (second connecting groove 48) to the resin board 27. Returning, the U-turn is made again in the vicinity of the front side edge of the resin board 27, and the continuous groove 3 extending in the order of the resin boards 27 to 33, 17 and returning to the header installation space 44 is formed. Is formed.

On the upper surfaces of the substrates B, F to H, as a whole, the resin boards 17, 18, 34 to 42 pass through the connecting portions 43 from the header installation space 44 and cross the butted sides T ₁ , T ₆ , T ₇ . It extends in order, makes a U-turn in the vicinity of the inner edge of the resin board 42, returns to the resin board 41, and makes a U-turn in the vicinity of the middle of the resin board 41 in the longitudinal direction (first connecting groove 47). Return to the resin board 42, make a U-turn again in the vicinity of the inner edge of the resin board 42, and extend continuously in the order of the resin boards 42 to 34, 18, 17 to return to the header installation space 44. A single groove 3 is formed.

Substrate B, A, F, on the upper surface of the E as a whole, extends across the edges T ₂ in the order of the resin board 17 to 12 butt with a header installation space for 44 through each connecting portion 43, the resin board 12 in the vicinity of the middle in the longitudinal direction (first connecting groove 47) and U-turns to extend in the order of the resin boards 12 to 17, and then crosses the butted sides T ₁ and T ₅ and passes through each connecting portion 43. The resin boards 17 and 33 to 28 are extended in this order, and a U-turn is made in the vicinity of the middle in the longitudinal direction of the resin board 28 (first connecting groove 47) to extend the resin boards 28 to 33 and 17 in order. A continuous groove 3 is formed so as to return to the installation space 44.

Substrate B to D, the upper surface of F~H as a whole, extends across the side _{T 3} in the order of the resin board 17 to 23 butt with a header installation space for 44 through each connecting portion 43, the resin board 23 in the middle of the longitudinal direction (first connecting groove 47) and U-turns in the order of the resin boards 23 to 18, and then crosses the butted sides T ₁ , T ₅ , T ₇ and each connecting portion 43. The resin boards 18, 34 to 41 are extended in this order, and a U-turn is made in the vicinity of the middle in the longitudinal direction of the resin board 41 (second connecting groove 48), in the order of the resin boards 41 to 34, 18, 17. One continuous groove 3 is formed so as to extend and return to the header installation space 44.

  That is, in this floor heating mat 1, as a whole, six grooves 3 are formed on the upper surface of the connection body of the substrates A to H.

One of the six grooves 3 enters the second area A ₂ from the header installation space 44 through the first area A ₁ , goes around the second area A ₂ , and then returns to the first area A ₂ . it is obtained by continuously back to header installation for space 44 through the area a _1. Another 1 Article, enters the third area A ₃ through the first area A ₁ from header installation space for 44, after passing around the third area A _3, header disposed through the first area A ₁ again It is continuous so as to return to the work space 44. Yet another 1 Article, enters the fourth area A ₄ through the first area A ₁ from header installation space for 44, after passing around the fourth area A _4, the header through the first area A ₁ again It is continuous so as to return to the installation space 44. Yet another 1 Article, enters the fifth area A ₅ through the first area A ₁ from header installation space for 44, after passing around the fifth area A _5, the header through the first area A ₁ again It is continuous so as to return to the installation space 44. Yet another 1 Article, enters the second area A ₂ through the first area A ₁ from header installation space for 44, after passing around the second area A _2, the fourth through the first area A ₁ enters the area a _4, after passing around the fourth area a _4, is obtained by continuously back to header installation for space 44 through the first area a ₁ again. The remaining 1 Article, enters the third area A ₃ through the first area A ₁ from header installation space for 44, after passing around the third area A _3, the fifth area through the first area A ₁ enters the a _5, after passing around the fifth area a _5, is obtained by continuously back to header installation for space 44 through the first area a ₁ again.

In this embodiment, the hot water pipes 4 are routed from the first area A ₁ to the second to fifth areas A _{2 to} A ₅ along the grooves 3, respectively, and the _second to fifth areas A ₂ to A 5. one of the hot water circulation circuit that independently a ₅ are formed. Also, the hot water pipe 4 in succession in the second area A ₂ and the fourth area A ₄ is drawn, one of the hot water circulation circuit extending over the second area A ₂ and the fourth area A ₄ is formed ing. Further, the hot water pipe 4 in succession as the third area A ₃ and the fifth area A ₅ is routed, one of the hot water circulation circuit extending over the third area A ₃ and the fifth area A ₅ is formed ing. As a result, two hot water circulation circuits are formed in each of the second to fifth areas A _{2 to} A ₅ .

In this floor heating mat 1, the difference in circulation pressure loss between these six hot water circulation circuits is about the same (preferably, the difference is about 0 to 10 kPa, particularly about 0 to 5 kPa. In addition, the length of each hot water pipe 4 is determined. The length of the floor heating in the coupled body of the substrate A~H constituting the mat 1, the grooves 3, which are respectively extending from the first area A ₁ to the second to fifth areas A ₂ to A ₅ Are approximately equal to the length of each hot water pipe 4 routed to each of the resin board 12 of the substrate A, the resin board 23 of the substrate C, the resin board 28 of the substrate E, and the resin board 41 of the substrate H. The first and second connecting grooves 47 and 48 are provided near the middle in the longitudinal direction, respectively.

In addition, the extending route of the groove 3 in each of the first to fifth areas A _{1 to} A ₅ is not limited to the above route.

  In this embodiment, the resin boards 11 to 42 are formed by combining a plurality of plate-shaped pieces a to s, respectively. Below, the structure of this plate-shaped piece a-s is demonstrated in detail.

As shown in FIG. 2, each of the plate-like pieces a to f is a portion of each of the resin boards in the _{second to} fifth areas A _{2 to} A ₅ excluding the vicinity of both ends, that is, the groove 3 has a longitudinal length thereof. It is a substantially rectangular plate-shaped thing which each comprises the part extended linearly in the direction. The plate-like pieces a to c have substantially the same width as the interval between the small joists 2 and 2, and four rows of grooves 3 extending in the longitudinal direction are formed on the upper surface thereof. The plate-like pieces d to f are approximately half the width of the plate-like pieces a to c. Two rows of grooves 3 extending in the longitudinal direction are formed on the upper surfaces of the plate-like pieces d to f. Each of the plate-like pieces b to f is shorter than the plate-like piece a by a predetermined dimension. Moreover, the notch part (code | symbol abbreviation) with which the below-mentioned plate-shaped piece p engages is formed in the one end side of the plate-shaped piece b.

  The plate-like pieces a are used for the resin boards 11, 13, 21, 22, 25-27, 29, 32-34, 37, 38, 42, respectively. The plate-like piece b is used for the resin board 16 and is arranged so that the notch faces the connecting portion 43 between the resin boards 16 and 17. The plate-like pieces d are used for the resin boards 14, 15, 20, 24, 30, 31, 35, 36, 39, and 40, respectively. The plate-like piece e is used for the resin board 19.

  The plate-like piece c is used for the resin boards 11, 28, 41 provided with the first and second short grooves 45a, 45b, 46a, 46b and the first and second connecting grooves 47, 48. . This plate-shaped piece c is disposed in each resin board 11, 28, 41 at a distance in the longitudinal direction of each resin board 11, 28, 41, and between them, Plate-shaped pieces r described later having connecting grooves 47 and 48 are disposed. In each resin board 11, 28, 41, two grooves 3 in the groove group of one plate-like piece d become first short grooves 45a, 45b, respectively, and in the groove group of the other plate-like piece d, The two grooves 3 become second short grooves 46a and 46b, respectively.

  The plate-like piece f is used for the resin board 23. Two plate-like pieces f are also arranged in the resin board 23 at intervals in the longitudinal direction of the resin board 23, and a plate-like piece s described later is arranged therebetween. In the resin board 23, each groove 3 of one plate-like piece f becomes first short grooves 45a and 45b, and each groove 3 of the other plate-like piece f becomes second short grooves 46a and 46b, respectively.

In the second to fifth areas A _{2 to} A ₅ , the plate-like pieces g to i are configured to integrally and integrally form the ends of the resin boards connected by the connecting portion 43.

  The plate-like piece g has a substantially U-shape that constitutes the connecting portion 43 facing the end side of each resin board and the end portions of the resin board on both sides thereof. Of the plate-like piece g, the portions constituting the end portions of the resin boards on both sides of the connecting portion 43 are substantially equal in width to the plate-like piece a. The plate-like piece g is composed of the end portions on the back side of the resin boards 11 and 12, the end portions on the near side of 12, 13 and the end portions on the back side of 21, 22 and the end portions on the near side of 25 and 26. 27, 28 on the back side, 28, 29 on the near side, 32, 33 on the back side, 37, 38 on the back side, and 41, 42 It is used to configure the end portions on the near side.

  The plate-like pieces h and i are also substantially U-shaped, which constitute the connecting portion 43 facing the end side of each resin board and the ends of the resin boards on both sides thereof. Among these, the part (one half side) which comprises the edge part of one resin board which pinched | interposed the connection part 43 becomes substantially equal width with the said plate-shaped piece a, and the part which comprises the edge part of the other resin board (The other half side) has substantially the same width as the plate-like piece d. The plate-like pieces h and i are symmetrical to each other.

The plate-like pieces h are the end portions on the back side of the resin boards 13 and 14, the end portions on the near side of 15 and 16, the end portions on the near side of 20 and 21, and the end portions on the back side of 29 and 30. It is used to configure the end portions 31 and 32 on the near side and the end portions 36 and 37 on the near side. The plate-like piece h is arranged so that the end side opposite to the connecting portion 43 on the other half side faces the butted sides T ₂ , T ₃ , T ₅ , T ₆ , respectively.

The plate-like piece i includes the front ends of the resin boards 22 and 23, the rear ends of 24 and 25, the front ends of 38 and 39, and the rear ends of 40 and 41. It is used to configure each part. This plate-like piece i is also arranged such that the end side opposite to the connecting portion 43 on the other half side faces the butted sides T ₄ and T ₇ , respectively.

  The plate-like piece j constitutes an end portion of the resin board in which each groove 3 makes a U-turn. The plate-like piece j is substantially equal in width to the plate-like pieces a to c. The plate-like pieces j are two substantially U-shaped or substantially extended pieces extending so that the first and fourth rows of grooves 3 and the second and third rows of grooves 3 of each resin board are continuous. A U-shaped groove 3 is provided.

  The plate-like piece j is used to constitute a front end portion of the resin board 11, a rear end portion of 26, a front end portion of 27, and a rear end portion of 42.

The plate-like pieces k and l constitute end portions of the resin board on the opposite side to the plate-like pieces h and i, respectively, with the butted sides T _{2 to} T ₇ interposed therebetween. The plate-like pieces k, l are symmetrical to each other. The plate-shaped piece k includes an end on the near side of the resin board 14, an end on the back side of 15, an end on the near side of 19, an end on the back side of 20, an end on the near side of 30, It is used to constitute the end on the back side, the end on the near side of 35, and the end on the back side of 36, and the plate-like piece l is the end on the back side of the resin board 23, in front of 24. It is used to construct the end on the side, the end on the back side of 39, and the end on the near side of 40. In this embodiment, the plate-like piece l is also used to constitute a portion (left half side) opposite to the later-described plate-like piece p in the end portion on the back side of the resin board 16.

  The plate-like piece m constitutes an end portion on the near side of the resin boards 33 and 34. Each groove 3 of the plate-like piece m is continuous with the front side edge of the resin boards 33 and 34, respectively.

  Each of the plate-like pieces a to m is used to constitute a general standard floor heating mat.

The plate-shaped piece n is a substantially rectangular shape in which each of the resin boards 17 and 18 in the first area A ₁ except for the vicinity of both ends, that is, a portion in which the groove 3 extends linearly in the longitudinal direction. It is plate-shaped. The plate-like piece n has substantially the same width as the interval between the small joists 2 and 2, and six rows of grooves 3 extending in the longitudinal direction are formed on the upper surface thereof.

Plate piece o, in the first area A _1, the ends of the front side of the resin board 17, which is constituted to set integrally with connecting portions 43 that connect them. A header installation space 44 is formed on the resin board 17 side of the plate-like piece o.

Plate pieces p are set integral end portions of the rear side, together with the coupling portion 43 of the first area A ₁ of the resin board 17, which is connected by a connecting portion 43 and the second area A ₂ of the resin board 16 It is configured. Six rows of grooves 3 are provided in the portion of the plate-shaped piece p that constitutes the end on the back side of the resin board 17. Of the groove group on the resin board 17 side, the grooves 3 in the third to sixth rows are connected to the end on the back side of the resin board 17. Further, in the groove group on the resin board 17 side, the first to third grooves 3 enter the resin board 16 through the connecting portion 43, and the resin board 16 has the fourth, third and It is connected to each groove 3 in the second row. The groove in the third row on the resin board 17 side is connected to the groove 3 in the second row of the resin board 16 via a plate-like piece l arranged on the left half side of the end on the back side of the resin board 16. ing.

  A portion of the plate-like piece p that forms the end on the back side of the resin board 16 is formed with a groove 3 that is continuous with the groove 3 in the first row of the resin board 16 via the plate-like piece l. . The groove 3 enters the resin board 17 through the connecting portion 43 and continues to the end on the back side of the resin board 17.

  The ends of the grooves 3 facing the inner edge of the resin board 17 are the grooves of the plate-like piece m constituting the end of the front side of the resin board 33 when the floor heating mat 1 is unfolded. It faces the end of 3. As a result, each groove 3 is continuous from the resin board 17 to 33.

  The plate-like piece q is a series of integrally formed end portions on the back side of the resin boards 18 and 19 and a connecting portion 43 connecting them. This plate-like piece q has a symmetrical configuration with the plate-like piece p. That is, also in this plate-like piece q, each groove 3 in the first row to the second row in the groove group on the resin board 18 side is connected to the end on the back side of the resin board 18. Of the groove group on the resin board 18 side, the fourth row of grooves 3 enters the resin board 19 through the connecting portion 43, and on the right side of the resin board 19 in the vicinity of the end side on the back side of the resin board 19. It is lined up. Further, in the groove group on the resin board 18 side, each of the grooves 3 in the fifth and sixth rows enters the resin board 19 through the connecting portion 43 and continues to each groove 3 of the plate-like piece e. One end of the plate-shaped piece q constituting the end on the back side of the resin board 19 is connected to the right side of the resin board 19 in the vicinity of the end on the back side of the resin board 19 and the other end is A groove 3 is provided which enters the resin board 18 through the connecting portion 43 and continues to the end on the back side of the resin board 18.

  The end of each groove 3 facing the end on the back side of the resin board 18 is each groove of the plate-like piece m constituting the end on the near side of the resin board 34 when the floor heating mat 1 is unfolded. It faces the end of 3. As a result, each groove 3 is continuous from the resin board 18 to 34. Moreover, the edge part of each groove | channel 3 which faces the right side of the resin board 19 is the edge of each groove | channel 3 of the plate-shaped piece k which comprises the edge part of the back | inner side of the resin board 20 in the state which developed the floor heating mat 1. Facing the department. As a result, the grooves 3 are continuous from the resin boards 19 to 20.

  The plate-like piece r has the first and second connecting grooves 47 and 48. FIG. 7 is a perspective view of the plate-like piece r. In this embodiment, the plate-like piece r has a substantially rectangular shape with substantially the same width as the plate-like piece c, and the plate surface has first and second connecting grooves 47 and 48, Two grooves 3 are provided. Both ends of the first connecting groove 47 and one end of each groove 3 are connected to one end side in the direction orthogonal to the width direction of the plate-like piece r, and both ends of the second connecting groove 48 and The other end of each groove 3 is connected to the end of the plate-like piece r on the other end side in the direction orthogonal to the width direction.

  The plate-like pieces r are arranged so as to be sandwiched between the plate-like pieces c and c in the resin boards 11, 28 and 41. Two grooves 3 in the groove group of one plate-like piece c sandwiching the plate-like piece r are respectively connected to both ends of the first connecting groove 47 of the plate-like piece r, and the other plate-like piece c Two grooves 3 in the groove group are connected to both ends of the second connecting groove 48 of the plate-like piece r. The remaining grooves 3 of these plate-like pieces c, c are connected to both ends of each groove 3 of the plate-like piece r.

  The plate-like piece s also has the first and second connecting grooves 47 and 48. The plate-like piece s has a substantially half width of the plate-like piece r (that is, substantially the same width as the plate-like piece f), and the portion provided with the grooves 3 and 3 is cut out from the plate-like piece r. It has a configuration.

  The plate-like piece s is disposed on the resin board 19 so as to be sandwiched between the plate-like pieces f and f. Each groove 3 of one plate-like piece f sandwiching the plate-like piece s is connected to both ends of the first connecting groove 47 of this plate-like piece s, and each groove 3 of the other plate-like piece f is The plate-like piece s is connected to both ends of the second connecting groove 48 respectively.

  The plate-shaped pieces o to s are exclusive items for the floor heating mat 1. That is, these plate-shaped pieces o to s are formed by a new mold.

In this embodiment, as shown in FIG. 2, in the second to fifth areas A _{2 to} A ₅ , the plate-like pieces a to f are formed from the inner surfaces of the grooves 3 of the plate-like pieces a to f and r. , R is provided with a soaking plate 7 extending to the upper surface. As shown in FIGS. 3 and 4, the soaking plate 7 includes a U-shaped portion 7a along the inner surface of each groove 3, and the upper surfaces of the plate-like pieces a to f, r from both ends (upper ends) of the U-shaped portion 7a. And a pair of flange portions 7b extending laterally along the side of the substantially Ω-shaped cross section.

  In the plate-like pieces a to f, r, the U-shaped portion 7a of the heat equalizing plate 7 is disposed in each groove 3, and the hot water pipe 4 is fitted into the U-shaped portion 7a from above. It is accommodated in each groove 3.

  The soaking plate 7 is made of a metal foil such as aluminum or copper. The thickness of the soaking plate 7 is usually 40 to 200 μm, particularly preferably 70 to 150 μm, and particularly preferably about 100 μm.

If necessary, in the second to fifth areas A _{2 to} A ₅ , in the grooves 3 of the plate-like pieces g to m other than the plate-like pieces a to f and the connecting grooves 47 and 48 of the plate-like piece r. Alternatively, the soaking plate 7 may be attached.

In this embodiment, in the first area A ₁ , six rows of grooves 3 are provided in each resin board 17, 18, so that the heat radiation amount in the first area A ₁ and the second to fifth areas A _2. to substantially equalize the heat radiation amount in to a _5, the uniform heat plate 7 is not mounted in the grooves 3 of the first area a _1. However, if necessary, soaking plate 7 may be mounted in the grooves 3 of the first area A _1.

After each hot water pipe 4 is routed, soaking sheets 6 are arranged so as to continuously cover the upper surfaces of the respective resin boards 11 to 42, and the soaking sheets 6 are arranged on the resin boards 11 to 42, the respective small joists 2 and It is affixed on the upper surface of the short radish 2 'with an adhesive or the like. In this embodiment, the soaking sheet 6 covering the upper surfaces of the resin boards 11 to 26 is continuous across the abutting sides T _{2 to} T ₄ between the resin boards 14 and 15, 19 and 20, and 23 and 24. It has become a thing. The soaking sheet 6 covering the top surfaces of the resin boards 27 to 42 is continuous across the butted sides T _{5 to} T ₇ between the resin boards 30 and 31, 35 and 36, and 39 and 40. Yes. This and soaking sheet 6 covering the upper surface of the resin board 11 to 26, the soaking sheet 6 covering the upper surface of the resin board 27 to 42 are divided along the butted edges T _1.

  In addition, by sticking the soaking sheet 6 continuously on the upper surfaces of the resin boards 11 to 26 as described above, the resin boards 11 to 26 and the small joists 2 and the short joists 2 'between them are connected. Has been. Moreover, these resin boards 26-40 and each small joist 2 between these are connected by sticking the soaking | uniform-heating sheet | seat 6 continuously on the upper surface of the resin boards 27-42.

In this embodiment, the connection body of the substrates A to H composed of the resin boards 11 to 42 is valley-folded along the butted sides T _{2 to} T ₇ , and then mountain-folded along the butted sides T _1. By doing so, the floor heating mat 1 can be folded.

  The effect of the floor heating mat 1 configured as described above is as follows.

  In this floor heating mat 1, two grooves in each of the groove groups of the resin board 12 of the substrate A, the resin board 23 of the substrate C, the resin board 28 of the substrate E, and the resin board 41 of the substrate H are respectively provided. The first short grooves 45a, 45b extending from the vicinity of the front side edge of the resin boards 12, 23, 28, 41 to the vicinity of the middle in the longitudinal direction of the resin boards 12, 23, 28, 41; Adjacent to the second short grooves 46a and 46b extending from the vicinity of the end side on the back side of the resin boards 12, 23, 28 and 41 to the vicinity of the middle in the longitudinal direction of the resin boards 12, 23, 28 and 41 The first connecting groove 47 connecting the back end portions of the first short grooves 45a, 45b and the second connecting groove connecting the front end portions of the adjacent second short grooves 46a, 46b. 48. Therefore, by arranging the hot water pipe 4 in the first or second connecting grooves 47, 48, the hot water pipe 4 can be folded back in the vicinity of the middle in the extending direction of the resin boards 12, 23, 28, 41. It is possible, and it is not always necessary to route each hot water pipe 4 from the vicinity of the front edge of each resin board 11 to 42 to the vicinity of the rear edge, so that the degree of freedom in adjusting the length of each hot water pipe 4 is high. .

In this embodiment, the length of each hot water pipe 4 is determined so that the difference in the flow pressure loss between the six hot water circulation circuits formed by each hot water pipe 4 is approximately the same. The length of the floor heating in the coupled body of the substrate A~H constituting the mat 1, the grooves 3, which are respectively extending from the first area A ₁ to the second to fifth areas A ₂ to A ₅ Are approximately equal to the length of each hot water pipe 4 routed to each of the resin board 12 of the substrate A, the resin board 23 of the substrate C, the resin board 28 of the substrate E, and the resin board 41 of the substrate H. First and second connecting grooves 47 and 48 are provided near the middle in the longitudinal direction, respectively. This prevents or suppresses temperature unevenness between the substrates A to H.

  In this embodiment, the first connecting groove 47 is curved so as to protrude toward the back side, and the second connecting groove 48 is curved so as to protrude toward the near side. Each hot water pipe 4 is seated from one adjacent first short groove 45a to the other first short groove 45b or from one adjacent second short groove 46a to the other second short groove 46b. It can be bent along the connecting grooves 47 and 48 without bending.

  In this embodiment, a six-circuit header 5 is used, and six hot water circulation circuits are formed by six hot water pipes 4 connected to the header 5. Therefore, even if the floor heating mat 1 has a large area, the pressure loss in each hot water pipe 4 can be reduced.

In this embodiment, the first area A ₁ including the header installation space 44 and the vicinity thereof, the second area A ₂ on the left side of the first area A ₁ , and the second area A ₂ on the right side of the first area A ₁ 3 area a _3, and the fourth area a ₄ of the floor heating mat 1 from the back side of lateral direction of the intermediate vicinity to the left, are divided into a fifth area a ₅ of the right fourth area a ₄ In the second to fifth areas A _{2 to} A ₅ , _two hot water circulation circuits are formed. Thereby, as the plate-shaped piece am constituting most of the resin boards 11 to 16 and 19 to 42 for the _{second to} fifth areas A _{2 to} A ₅ , a general standard floor heating mat is used. A common plate-shaped piece can be used.

In the floor heating mat 1, since the first area A ₁ 6 pieces of the hot water pipe 4 is drawn, the plate-shaped pieces o~q constituting the resin board 17, 18 of the first area A for ₁ It is necessary to use a dedicated product. Moreover, it is necessary to use a dedicated product as the plate-like pieces r and s having the connecting grooves 47 and 48. However, in this floor heating mat 1, the majority of the 80% to 95% of the total floor heating mat 1 second to 5 area _A 2 to A _5, the first area _{A 1} is floor heating mat 1 is about 5 to 20% of the whole, and the plate-like pieces r and s are very small compared to the overall size of the floor heating mat 1, so that most of the floor heating mat 1 is made of a standard product. It can be composed of plate-like pieces a to m of the floor heating mat, and the number of dedicated plate-like pieces os can be small.

That is, in this floor heating mat 1, a plate-like piece o~s first area A ₁ only are five in total, since a mold for molding them new need be five fabrication, The manufacturing cost of the floor heating mat 1 can be kept low.

  In addition, the resin boards 11 to 42 are configured by combining the plate-like pieces a to s in this way, thereby arranging the plate-like pieces r and s having the first and second connecting grooves 47 and 48. The degree of freedom is also high.

In this embodiment, the arrangement amount of the temperature control pipe per unit area (m ² ) in the _{second to} fifth areas A _{2 to} A ₅ is 12 to 14 m / m ² . Thereby, the heat radiation amount of the mat surface in the _{second to} fifth areas A _{2 to} A ₅ becomes the same as that of a general standard temperature control mat.

In this embodiment, in each of the second to fifth areas A _{2 to} A ₅ in which four rows of hot water pipes 4 extend on the respective resin boards 11 to 16 and 19 to 42, each resin from the inner surface of each groove 3. Since the soaking plate 7 extending over the upper surfaces of the boards 11 to 16 and 19 to 42 is mounted, the discharge in the first area A ₁ in which six rows of hot water pipes 4 extend on the resin boards 17 and 18 respectively. The amount of heat and the amount of heat released in these second to fifth areas A _{2 to} A ₅ are substantially equal.

[Floor heating mat 1A as a temperature control mat according to the second embodiment]
FIG. 9 is a plan view of the floor heating mat 1A according to the second embodiment, and FIG. 10 is a plan view of the vicinity of the header of the floor heating mat 1A.

This floor heating mat 1A includes a connection body of two substantially rectangular substrates I and J. Each of the substrates I and J has a substantially rectangular shape, and is arranged so that the long sides of each of the substrates I and J are abutted. Reference numeral T ₈ indicates a butt side between the substrates I and J.

  The substrate I has a configuration in which the resin boards 50 to 60 and the small joists 2 are alternately arranged in the long side direction of the substrate I, and the substrate J includes the resin boards 61 to 71 and the small joists 2 to the substrates. The arrangement is such that they are alternately arranged in the long side direction of J. The resin boards 50 to 71 and the small joist 2 are arranged with the longitudinal direction of each of the substrates I and J as the short side direction. Also in this embodiment, the arrangement pitch of the small joists 2 is substantially 303 mm, and the width of each resin board 50 to 71 is a dimension obtained by subtracting the width of one small joist 2 from the arrangement pitch of the small joists 2. It is said that. The length of each small joist 2 is shorter than the length of each resin board 50 to 71 by a predetermined dimension.

  In FIG. 9, the small joist 2 located on the left end side in the first row is the first row, and each small joist 2 in the odd-numbered row in each of the substrates I and J has an end on the back side of each resin board 50 to 72. It is arranged in alignment with the side edge. Further, the front end portion of these small joists 2 is located on the front side by a predetermined distance from the front side edges of the resin boards 50 to 71.

  Among these, the small joists 2 in the first row (between the resin boards 50 and 51 and 61 and 62) are shorter than the other small joists 2 by a predetermined length. Short root joists 2 'are arranged on the front side. The front ends of these small joists 2 are separated from the front ends of the respective short joists 2 'by a predetermined distance. The short joist 2 ′ of the substrate J is arranged with its front end aligned with the front end of each resin board 61, 62. The short radish 2 ′ of the substrate I has a shorter length than the short radish 2 ′ of the substrate J, and the end on the front side thereof is the same as the other small radish 2 on the front side of the resin boards 50 and 51. It is located on the back side of the edge.

  The small joists 2 in the even-numbered columns of the substrates I and J are arranged with their front ends aligned with the front edges of the resin boards 50 to 72. Moreover, the end part of the back side of these small joists 2 is located in the near side of the predetermined distance rather than the end side of the back side of each resin board 50-71.

  Between resin boards 50 and 51, between 52 and 53, between 54 and 55, between 56 and 57, between 58 and 59, between 63 and 64, between 65 and 66, between 67 and 68, and between 69 and 70, respectively These resin boards 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, The connection part 43 which connects 63,64, 65,66, 67,68, and 69,70 is formed.

  Between the resin boards 61 and 62, the connection part 43 which connects these resin boards 61 and 62 is formed so that between the small joists 2 and the short joists 2 'may be crossed.

  Between resin boards 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 65, 66, 67, 68, 69 and 70, 71 In between, these resin boards 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62 and 63, 64 and 65, 66 and 67, 68 and 69, and the connection part 43 which connects 70 and 71 are formed.

  Each of these connecting portions 43 is formed integrally with adjacent resin boards 50 to 71.

  Each of the resin boards 50 to 71 is provided with four hot water piping arrangement grooves 3 extending in the longitudinal direction of each of the resin boards 50 to 71, and one piece is formed by these four grooves 3. The groove group is configured.

  Between the resin boards 50-60 connected by the connection part 43 and between 61-71, each groove | channel 3 of these resin boards becomes what connected through this connection part 43, respectively. Yes. Through this connecting portion 43, the first row of grooves 3 of one of the adjacent resin boards and the fourth row of grooves 3 of the other resin board are continuous, and the two rows of the one resin board. The groove 3 of the eye and the groove 3 of the third row of the other resin board are continuous, and the groove 3 of the third row of the one resin board and the groove 3 of the second row of the other resin board are continuous. The fourth row of grooves 3 of the one resin board and the first row of grooves 3 of the other resin board are continuous.

  In this floor heating mat 1A, a header installation space 44 is provided on the resin board 50 at the left end of the substrate I. The header installation space 44 is formed such that the front side edge of the resin board 50 is partially cut out into a substantially rectangular shape. The header 5 </ b> A is installed in the header installation space 44.

  As shown in FIG. 10, in this embodiment, the header 5A is a three-circuit header having three hot water outlets 5c and three hot water return ports 5d. Three hot water pipes 4 are connected to the header 5A.

  The grooves 3 in the first to third rows of the resin board 50 respectively extend so as to wrap around the left side of the header installation space 44 in the vicinity of the end portion on the near side of the resin board 50. This end faces the left side of the header installation space 44. The groove 3 in the fourth row of the resin board 50 is connected to the groove 3 in the first row of the resin board 51 through a connecting portion 43 between the small joist 2 and the short joist 2 'between the resin boards 50 and 51. ing.

End of the back side of each groove 3 of the resin board 50, respectively, contiguous with the inner side of the edge of the resin board 50, facing the abutting edges T _8.

  The groove 3 in the second row of the resin board 51 extends to the resin board 50 through the connecting portion 43 between the small joists 2 and the short joists 2 ′ between the resin boards 50 and 51 on the front side of the resin boards 51. Exist. Further, the grooves 3 in the third row and the fourth row of the resin board 51 extend to the resin board 50 through the connecting portion 43 on the near side of the short joist 2 'between the resin boards 50 and 51. . These grooves 3 extend so as to wrap around the right side of the header installation space 44, and the front end of each of the grooves 3 faces the right side of the header installation space 44.

In each groove 3 of the resin board 61 at the left end of the substrate J, the first row and the fourth row of grooves 3 are continuous with each other in the vicinity of the inner edge of the resin board 61, and the second row and the third row. The eye grooves 3 are continuous with each other. The first and second columns each groove 3 of the resin board 61, respectively, contiguous with the end edge of the front side of the resin board 61, facing the side T ₈ abutting each end is the. The grooves 3 in the second and third rows of the resin board 61 are connected to the grooves 3 in the second and first rows of the resin board 62 through the connecting portions 43 between the resin boards 61 and 62.

The grooves 3 in the third and fourth rows of the resin board 62 enter the resin board 61 through the connecting portion 43 between the resin boards 61 and 62, and are connected to the front side edge of the resin board 61. . That is, on the front side of the resin board 61, the ends of the grooves 3 in the first and second rows of the resin board 61 and the ends of the grooves 3 in the third and fourth rows of the resin board 62 are arranged. parts and confronts the side T ₈ butt respectively.

In a state where the floor heating mat 1A is unfolded, the end of each groove 3 facing the front side edge of the resin board 61 and the end of each groove 3 facing the back side edge of the resin board 50 face each other. and it has become a continuous resin board 50 to 61 across the edges T ₈ butt these grooves 3.

  In each groove 3 of the resin board 60 of the substrate I, the grooves 3 in the first row and the fourth row are continuous with each other in the vicinity of the end on the near side of the resin board 60, and the second row and the third row. The grooves 3 are continuous. Further, each groove 3 of the resin board 71 of the substrate J also has the first row and the fourth row of grooves 3 continuous in the vicinity of the front side edge of the resin board 71, and the second row and the third row. The eye grooves 3 are continuous with each other.

  In this floor heating mat 1A, the first and second rows of the groove groups of the resin board 55 of the substrate I and the resin board 67 of the substrate J are the same as the resin board 28 of the substrate A in the floor heating mat 1 described above. The eye grooves 3 are each extended so as to be folded back toward the front side and the back side in the extending direction of the groove group.

  Although detailed illustration is omitted, also in this floor heating mat 1A, the grooves 3 in the first row and the second row of the resin boards 55 and 67 are the vicinity of the end side on the near side of the resin boards 55 and 67, respectively. First short grooves 45a and 45b (reference numerals are omitted in FIG. 9; see FIG. 6) extending to the middle of the resin boards 55 and 67 in the longitudinal direction, and the back side of the resin boards 55 and 67 The second short grooves 46a and 46b (reference numerals are omitted in FIG. 9, refer to FIG. 6) extending from the vicinity of the edge of the resin board 55 to the vicinity of the middle in the longitudinal direction of the resin boards 55 and 67 are adjacent to the first. A first connecting groove 47 that connects end portions on the back side of the short grooves 45a and 45b, and a second connecting groove 48 that connects end portions on the near side of the adjacent second short grooves 46a and 46b. Have.

  As a result, the resin boards 50 to 60 are extended in the order of the resin boards 50 to 60 from the header installation space 44 through the connecting portions 43 on the upper surfaces of the substrates I and J. Turn to return to the resin board 55, make a U-turn near the middle in the longitudinal direction of the resin board 55 (second connecting groove 48), return to the resin board 55, and near the edge of the front side of the resin board 60 A continuous groove 3 is formed so as to make a U-turn again and extend in the order of the resin boards 60 to 50 and return to the header installation space 44.

In addition, the resin boards 50 and 61 to 71 are extended in this order from the header installation space 44 across the butted side T ₈ and through the connecting portions 43, and in the vicinity of the front side of the resin board 71, the U-turn And return to the resin board 67, make a U-turn near the middle in the longitudinal direction of the resin board 67 (the first connecting groove 47), return to the resin board 71, and in the vicinity of the front side edge of the resin board 71 The U-turn is made again, and a continuous groove 3 is formed so as to extend in the order of the resin boards 71 to 61, 50 and return to the header installation space 44.

Furthermore, the resin boards 50 to 55 are extended from the header installation space 44 through the respective connecting portions 43 in this order, and the resin board 55 is U-turned in the vicinity of the middle in the longitudinal direction (the first connecting groove 47). It extends in the order of the boards 55 to 50, crosses the butting side T ₈ from the resin board 50, extends in the order of the resin boards 61 to 67 through the connecting portions 43, and is near the middle in the longitudinal direction of the resin board 67 A continuous groove 3 is formed so as to make a U-turn at the (first connecting groove 47), extend in the order of the resin boards 67 to 61, 50, and return to the header installation space 44.

  In addition, although detailed illustration is abbreviate | omitted, also in this embodiment, each resin board 50-71 is comprised combining several plate-shaped piece. Of these, the resin boards 55 and 67 are each provided with a plate-like piece r shown in FIG. 7 near the middle in the longitudinal direction.

  A hot water pipe 4 is routed around each of the three grooves 3. In this floor heating mat 1A, the difference in circulation pressure loss between the hot water circulation circuits formed by these three hot water pipes 4 is approximately the same (preferably, the difference is 0 to 10 kPa, particularly The length of each hot water pipe 4 is determined so that it may become about 0-5kPa. And in the connection body of the board | substrates I and J which comprise this floor heating mat 1A, the board | substrate I is such that the length of these groove | channels 3 becomes substantially equal to the length of each hot water piping 4 routed around each. The first and second connecting grooves 47 and 48 are provided near the middle in the longitudinal direction of the resin board 55 and the resin board 67 of the substrate J, respectively.

  In addition, the extension route of the groove | channel 3 in each board | substrate I and J is not limited to said route.

  Other configurations of the floor heating mat 1A are the same as those of the floor heating mat 1 shown in FIGS. 1 to 8. In FIGS. 9 and 10, the same reference numerals as those in FIGS. 1 to 8 denote the same parts.

  The effect of the floor heating mat 1A configured as described above is as follows.

  Even in this floor heating mat 1A, two grooves in the groove groups of the resin board 55 of the substrate I and the resin board 67 of the substrate J are in the vicinity of the front edge of the resin boards 55 and 67, respectively. First short grooves 45a and 45b extending from the portion to the vicinity of the middle in the longitudinal direction of the resin boards 55 and 67, and the resin boards 55 and 67 from the vicinity of the end side on the back side of the resin boards 55 and 67. Second short grooves 46a, 46b extending to the middle in the longitudinal direction, first connecting grooves 47 connecting the end portions on the back side of the adjacent first short grooves 45a, 45b, and adjacent second It has the 2nd connection groove | channel 48 which connects the edge parts of the near side of this short groove 46a, 46b. Therefore, by arranging the hot water pipe 4 in the first or second connecting grooves 47 and 48, the hot water pipe 4 can be folded back in the vicinity of the middle in the extending direction of the resin boards 55 and 67. Since the piping 4 does not necessarily have to be routed from the vicinity of the front edge of each resin board 50 to 71 to the vicinity of the rear edge, the degree of freedom in adjusting the length of each hot water piping 4 is high.

  Also in this embodiment, the length of each hot water pipe 4 is determined so that the difference in the circulation pressure loss between the three hot water circulation circuits formed by each hot water pipe 4 is approximately the same. And in the connection body of the board | substrates I and J which comprise this floor heating mat 1A, the length of each groove | channel 3 which circulates this board | substrate I and J is substantially the length of each hot water piping 4 routed around each. In order to be equivalent, first and second connecting grooves 47 and 48 are provided near the middle in the longitudinal direction of the resin board 55 of the substrate I and the resin board 67 of the substrate J, respectively. This prevents or suppresses temperature unevenness between the substrates I and J.

  Also in this embodiment, the first connecting groove 47 is curved so as to protrude toward the back side, and the second connecting groove 48 is curved so as to protrude toward the near side. Therefore, each hot water pipe 4 from one adjacent first short groove 45a to the other first short groove 45b or from one adjacent second short groove 46a to the other second short groove 46b. Can be bent along the connecting grooves 47 and 48 without being buckled.

[Other configuration examples of plate-shaped pieces]
i) In each of the embodiments described above, both the first connecting groove 47 and the second connecting groove 48 are provided in one plate-like piece r, s, but the first connecting groove and the second connecting groove 48 are provided. These connecting grooves may be provided in separate plate-like pieces.

  FIG. 11 (a) is a plan view of a plate-like piece t in which only one connecting groove is formed on the plate surface, and FIG. 11 (b) is a diagram of a substrate constructed using this plate-like piece t. It is a top view of the 1st and 2nd connection groove vicinity. FIG. 11 (b) shows an example in which the board C of the floor heating mat 1 in the embodiment shown in FIGS. 1 to 8 is configured using the plate-like piece t.

  As shown in FIG. 11, the plate-like piece t is configured such that the plate-like piece s is cut in half between the first connecting groove 47 and the second connecting groove 48. That is, on the plate surface of the plate-like piece t, only one substantially semicircular arc-shaped connecting groove 49 whose both ends are connected to one side of the plate-like piece t is formed.

  When a board having the first and second connecting grooves is configured using the plate-shaped piece t, instead of the plate-shaped pieces r and s, between the plate-shaped pieces c and c or the plate-shaped pieces f and f In the middle, two plate-like pieces t are arranged in the small joist direction. At this time, each plate-like piece t is disposed such that both ends of each connecting groove 49 are directed in opposite directions. Of these two plate-like pieces t, t, the connecting groove 49 of the plate-like piece t arranged on the near side of the substrate becomes the first connecting groove, and the connecting of the plate-like piece t arranged on the back side of the substrate. The groove 49 becomes a second connecting groove. Both ends of the connecting groove 49 of the plate-like piece t on the near side are respectively connected to the first short grooves 45a and 45b of the plate-like piece c or f on the near side, and the connecting groove of the plate-like piece t on the back side. Both ends of 49 are connected to the respective second short grooves 46a and 46b of the plate-like piece c or f on the back side.

  As shown in FIG. 11 (b), when the plate-shaped piece t is used instead of the plate-shaped piece s, it is only necessary to arrange these two plate-shaped pieces t and t in the direction of the small joists. When the plate-shaped piece t is used instead of the plate-shaped piece r, the plate-shaped piece f is arranged adjacent to the array of these plate-shaped pieces t, t and the array of the plate-shaped pieces t, t. A short plate-like piece (not shown) having two grooves 3 and 3 as cut to the same length is disposed. Thereby, the remaining two grooves 3 and 3 of the plate-like pieces c and c are made continuous.

  Thus, by providing the first connecting groove and the second connecting groove on separate plate-like pieces t and t, the degree of freedom of arrangement of the first connecting groove and the second connecting groove is increased. improves. That is, for example, by arranging the plate-shaped pieces t and t apart from each other, the first connecting groove and the second connecting groove can be arranged with a desired interval.

ii) In the plate-like pieces r and s described above, the connecting grooves 47 and 48 each have an intermediate portion extending in a semicircular arc shape, and both end sides of the plate-like pieces c and f, respectively. Each of the first short grooves 45a and 45b or each of the second short grooves 46a and 46b has a substantially U-shape extending linearly in parallel with each other. The shape is not limited to this. For example, like the connecting groove 49 in the plate-shaped piece t in FIG. 11A, the entire connecting groove may extend from one end to the other end in a semicircular arc shape. Of course, the connecting groove may have other shapes.

iii) In each of the above embodiments, each connecting groove and each first and second short groove are provided in separate plate-like pieces, but each connecting groove and each first and second short groove are provided. The dividing method is not limited to this. For example, a first connecting groove and each first short groove connected to the first connecting groove are continuously formed in one plate-shaped piece, and the second connecting groove and each second short groove connected to the second connecting groove May be continuously formed on another plate-shaped piece. The first and second connecting grooves and the first and second short grooves connected thereto may all be formed in one plate-like piece. Of course, other division methods may be used.

[Materials]
Although the following is mentioned as an example of the material of each member of said floor heating mat 1, 1A, It is not limited to these.

  As the resin board (plate-shaped piece) constituting the substrate of the floor heating mat, for example, foamed synthetic resin such as foamed polypropylene, foamed polystyrene, foamed polyethylene, and foamed polyurethane can be used. The foamed synthetic resin is preferably one in which the internal bubbles are closed cells from the viewpoint of heat insulation. Instead of this resin board, the substrate can be made of wood or the like.

  As the small joist and the short jojo, wood, synthetic wood or synthetic resin or synthetic resin foam capable of nailing is preferable. Although illustration is abbreviate | omitted, the structure which affixed the reinforcement board on the upper and lower both surfaces of the small joist main body may be sufficient.

  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 floor heating 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.

  In addition, all of said embodiment shows an example of this invention and this invention is not limited to the structure of illustration.

  For example, in each of the above-described embodiments, one groove group is constituted by four or six grooves between each small joist in each substrate, but the number of grooves constituting the groove group is as follows. It is not limited.

  In each of the above embodiments, the first and second connecting grooves 47 and 48 are arranged near the middle in the longitudinal direction of the resin board. The arrangement of is not limited to this. In each of the above embodiments, the first and second connecting grooves 47 and 48 are arranged close to each other, but may be arranged separately on the front side and the back side of the resin board. .

  The number of substrates constituting the temperature control mat of the present invention is not limited to the number of the above embodiments. Further, the shape of each substrate is not limited to the shape of each of the above embodiments.

  The number of resin boards constituting the substrate of the temperature control mat of the present invention is not particularly limited, and each substrate may be configured using a number of resin boards other than those described above. In the above-described embodiment, each substrate is formed by arranging a plurality of resin boards, but the whole may be constituted by a single resin board. In the above embodiment, the temperature control mat is folded along the abutting side between the substrates. However, the temperature control mat is folded along the other side, for example, the abutting side of the resin board and small joists. You may comprise as follows.

  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 distribute | circulate heat media, such as oil other than water and antifreeze. A refrigerant may be circulated and used for cooling.

It is a top view of floor heating mat 1 concerning a 1st embodiment. It is the top view which abbreviate | omitted the heat equalization sheet | seat of the floor heating mat. It is sectional drawing which follows the III-III line of FIG. FIG. 4 is an exploded cross-sectional view of the same portion as FIG. 3. It is sectional drawing which follows the VV line of FIG. It is a top view of the board | substrate A which comprises the floor heating mat. It is a top view of the plate-shaped piece which has the 1st and 2nd connecting groove. It is a top view of the header vicinity of the floor heating mat. It is a top view of floor heating mat 1A concerning a 2nd embodiment. It is a top view near the header of floor heating mat 1A. It is a top view which shows the other structural example of a plate-shaped piece. It is a top view of the temperature control mat which concerns on a prior art example. It is sectional drawing which follows the XIII-XIII line | wire of FIG.

Explanation of symbols

1,1A Floor heating mat 2 Kokona 3 Piping groove 4 Hot water piping 5 6 Circuit header 5a Hot water inlet 5b Hot water outlet 5c Hot water outlet 5d Hot water return 6 Heat equalizing sheet 7 Heat equalizing plate 7a U-shaped Part 7b Flange part 11-42, 50-71 Resin board 43 Connection part 44 Space for header installation at Plate-shaped piece

Claims (6)

In the temperature control mat substrate, on the plate surface of the substrate, a groove group comprising a plurality of temperature control piping arrangement grooves extending from one end side vicinity portion to the other end side vicinity portion of the substrate is provided. ,
At least two adjacent grooves for temperature control pipe installation are
A first short groove extending from the vicinity of one end side of the substrate to the middle of the extending direction of the groove group;
A second short groove extending from the vicinity of the other end side of the substrate to the middle of the extending direction of the groove group;
A first connecting groove connecting the ends of the other first short grooves adjacent to each other;
A temperature control mat substrate, comprising: a second connecting groove that connects ends of the one end side of adjacent second short grooves. In Claim 1, the 1st connecting groove is curving so that it may protrude toward the 2nd short groove side,
The temperature control mat substrate, wherein the second connecting groove is curved so as to protrude toward the first short groove side. A temperature control mat substrate having a groove group including a plurality of temperature control piping arrangement grooves extending from one end side vicinity portion to the other end side vicinity portion of the substrate on the plate surface of the substrate. Connected multiple pieces,
In the temperature control mat substrate assembly in which a plurality of temperature control pipes connected to the header are disposed across a plurality of temperature control mat substrates,
A part of the substrate for temperature control mats comprises the substrate for temperature control mats according to claim 1 or 2. The substrate connection body for temperature control mats of Claim 3;
A temperature control mat comprising a plurality of temperature control pipes disposed in the temperature control pipe disposition groove of the substrate connection body for the temperature control mat,
At least some temperature control piping is arrange | positioned by the said 1st or 2nd connection groove | channel, The temperature control mat characterized by the above-mentioned.   5. The temperature control mat according to claim 4, wherein the temperature control mat is provided with a header having a plurality of temperature control medium outlets and temperature control medium return ports, and one end of each temperature control pipe is connected to the temperature control medium outlet. A temperature control mat, characterized in that an end is connected to the temperature control medium return port. In Claim 5, the header has an inlet for the temperature control medium from the heat source unit, and an outlet for the temperature control medium to the heat source unit.
The flow pressure loss of the temperature control medium flow path from the inlet to the flow outlet through the temperature control medium outlet, the temperature control pipe, and the temperature control medium return port is substantially the same in each temperature control medium distribution path. Temperature control mat.

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