JP2007032981A - Heating mat and system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide heating mats and a heating system using the heating mats easily attachable and detachable using an existing bench or the like easily as a heating seat surface. <P>SOLUTION: The heating mats 1 provided with piping 20A, 20B for heat medium circulation are arranged in a row on the bench 40. Male joints 21, 21 provided at one ends of the respective piping 20A, 20B are arranged in a region near the rear end of one side end face of the heating mat 1, and female joints 22, 22 provided at the other ends of the respective piping 20A, 20B are arranged in a region near the rear end of the other side end face. The side end faces of the adjacent heating mats 1, 1 are placed face to face with each other, and the facing male joints 21 and female joints 22 are connected. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heating mat suitable for being provided on a seat surface of a bench installed in a theater, an aquarium, a stadium, an event hall, and the like, and a heating system using the heating mat.

  At outdoor stadiums and outdoor event venues, the cold air of the outside air is directly received in winter, and it is not possible to watch and appreciate comfortably. Even if it is indoors, there is no sufficient heating effect in the temporary venue, and it will be possible to watch and appreciate while still withstanding the cold.

Conventionally, as a heating device for a seat, Patent Document 1 describes a device for supplying hot air to the feet of a seated person such as a train. Patent Document 2 describes a heating target surface device in which a heater is provided in a seat. Patent Document 3 includes a substrate made of foamed polystyrene or the like provided with a groove for piping arrangement, a hot water pipe routed in the groove, and a soaking plate made of an aluminum plate or the like provided on the substrate. This floor heating panel is described.
JP-A-9-98852 JP 7-265155 A JP 2002-228169 A

  Any conventional heating device for a seat is permanently installed in the seat regardless of the season by fixing the case covering the heat source to the support by a fixing member or by installing the case inside the seat. For this reason, a complicated work for fixing is required at the time of construction, and it cannot be easily detached at the time of repair or inspection, and it is not easy to remove it when it is unnecessary.

  Therefore, for example, it is impossible to simply use it at a temporary event venue or the like, and at the end of the event, it can be easily disassembled and removed.

  The heating panel of Patent Document 3 is also used for floor heating in a building and cannot be used to be installed or removed from an event venue or the like.

  An object of the present invention is to provide a heating mat that can be easily attached and detached, and that can easily use an existing bench or the like as a heating seat, and a heating system using the heating mat.

  The heating mat according to claim 1 is provided with a piping for heat medium circulation, a first connection joint in which one end of the piping is connected to one side end surface, and the other end of the piping on the other side end surface. In the heating mat provided with the second connecting joints connected to each other, an even number of the pipes are provided, and an even number of connecting joints are arranged on each side end surface. .

  A heating mat according to a second aspect is characterized in that, in the first aspect, two pipes are provided, and two connection joints are arranged on each side end face.

  The heating mat of claim 3 is the heating mat according to claim 1 or 2, wherein the connecting joint on one side end face is a male joint, and the connecting joint on the other side end face is a female to which the male joint can be fitted. It is a type joint.

  The heating mat according to claim 4 is the heating mat according to any one of claims 1 to 3, wherein the connection joint on one side end face and the connection joint on the other side end face are between the side end faces. It is characterized by a symmetrical arrangement with the center line as a symmetric line.

  A heating mat according to a fifth aspect is characterized in that, in the fourth aspect, each joint for connection is arranged in a region in the vicinity of the end portion close to one side in the longitudinal direction of each side end surface.

  A heating mat according to a sixth aspect is characterized in that, in the fifth aspect, the thickness of the heating mat on the side end face is larger in the region near the end than in the other regions.

  The heating mat according to claim 7, wherein the heating mat is a plate-shaped base mat provided with a groove for accommodating the pipe and the pipe on the plate surface according to any one of claims 1 to 6. The both ends of the groove are provided with a base mat facing the side surface of the base mat and a surface material overlapping the plate surface of the base mat.

The heating mat according to an eighth aspect is characterized in that, in the seventh aspect, the density of the base mat is 1.5 g / cm ³ or more.

The heating mat according to claim 9 is the heating mat according to claim 7 or 8, wherein the base mat has a laminated structure including a base layer and a surface layer, the groove is provided in the surface layer, and the density of the base layer is 1.5 g. / Cm ³ or more, and the density of the surface layer is smaller than the density of the base layer.

  A heating mat according to a tenth aspect is the heating mat according to any one of the seventh to ninth aspects, wherein the base mat and the surface material are coupled by a detachable coupling means.

  A heating mat according to an eleventh aspect is the heating mat according to any one of the seventh to ninth aspects, wherein a heat conductive thin layer is provided between the base mat and the surface material.

  A heating mat according to a twelfth aspect of the present invention is the heating mat according to the eleventh aspect, wherein the heat conductive thin layer is fixed to the base mat, and the heat conductive thin layer and the surface material are coupled by a detachable coupling means. It is characterized by that.

  A heating system according to a thirteenth aspect includes a plurality of the heating mats according to any one of the first to twelfth aspects, arranged in a row with the side end surfaces facing each other, and for connecting adjacent heating mats. The joints are connected to each other, and in the heating mat on the end side arranged in the row, the joints for connection are communicated with each other by a communication member.

  In the heating mat and the heating system of the present invention, the heating mat can be installed and installed so as to be arranged on, for example, a bench seat surface of an event venue and to connect joints for connecting adjacent heating mats.

  Since this heating mat is provided with an even number of pipes, half of the pipes can be used as the outgoing pipe for the heating medium such as hot water, and the remaining pipe can be used as the return pipe for the heating medium. Therefore, the heat source of the heat medium can be arranged on one end side of the heating mat group arranged in a row, and the heat medium can be distributed to each heating mat of the heating mat group.

  As described in claim 2, two pipes are sufficient, but four or more pipes may be provided.

  As described in claim 3, by using male and female joints for connection, the pipes of the adjacent heating mats can be connected very easily.

  As described in claim 4, when the connecting joints are arranged symmetrically on one side end face and the other side end face, the connecting mats of adjacent heating mats are arranged by arranging the heating mats in a line. Will be facing each other, making it very easy to connect the joints.

  If the connection joint is disposed in the vicinity of one end portion as in claim 5, the joint can be positioned on the back side of the bench. In such a case, for the person sitting on the bench, the joint is located behind the body, so that a hand or a finger is prevented or suppressed from touching the joint.

  As described in claim 6, by increasing the thickness of the heating mat on the side end face in the region near the end, the joint can be disposed at a deep position in the gap between the heating mats, and the hand and fingers touch the joint. It becomes possible to further suppress or prevent.

  As described in claim 7, the heating mat preferably has a grooved substrate mat and a surface material overlapping the substrate mat.

  In this case, it becomes easy to remove the heating system from the surface to be heated by unfixing the base mat to the surface to be heated.

As described in claim 8, by setting the density of the base mat to 1.5 g / cm ³ or more, even if it is not fixed to the surface to be heated, it is difficult to be displaced.

As in claim 9, the base mat has a laminated structure including a base layer and a surface layer, grooves are provided in the surface layer, the density of the base layer is 1.5 g / cm ³ or more, and the density of the surface layer is higher than the density of the base layer. If it is small, heat retention to the piping by the low-density surface layer, heat insulation to the bottom surface, good usability with its cushioning properties, and misalignment of the base mat due to the weight of the high-density base layer Can be prevented.

  As claimed in claim 10, when the base mat and the surface material are joined by a detachable joining means, the base material mat and the surface material can be separated after preventing displacement of the surface material, It is easy to dismantle and remove the heating system after installation.

  As described in claim 11, when a heat conductive thin layer is provided between the base mat and the surface material, the heat from the pipe propagates to a wide area of the surface material. Uneven temperature is reduced.

  As described in claim 12, when the heat conductive thin layer is provided, the heat conductive thin layer may be fixed to the base mat and the heat conductive thin layer and the surface material may be detachably coupled. In this case, the heat conductive thin layer and the surface material can be separated when the heating system is dismantled and removed.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments will be described with reference to the drawings. However, what is described below is an example of embodiments of the present invention, and the present invention is not limited to the following descriptions unless it exceeds the gist. It is not a thing.
1 is a perspective view of a heating mat according to the embodiment, FIG. 2 is an exploded perspective view of the heating mat, FIG. 3 is a plan (top) view of the heating mat, and FIG. 4 is an IV of FIG. Sectional views along line IV, FIG. 5 and FIG. 6 each show another example of the base mat, sectional views similar to FIG. 4, and FIGS. 7A and 7B show this heating mat FIG. 8 is a perspective view showing the installation construction procedure of the heating system, and FIGS. 9 to 11 are heat medium distribution system diagrams to the heat medium distribution pipes, respectively.

  In this embodiment, the heating mat 1 is configured using the base mat 10, the heat conductive thin layer 15, the two heat medium circulation pipes 20 </ b> A and 20 </ b> B, and the surface material 30.

As shown in FIG. 3, the base mat 10 has a rectangular plate shape in this embodiment. Hereinafter, the long side direction of the base mat 10 is referred to as the left-right direction, and the short side direction is referred to as the front-rear direction. As shown in FIG. 4, the base mat 10 is composed of a laminate of a surface layer 11 made of a low specific gravity material (low density material) and a base layer 12 made of a high specific gravity material (high density material). The specific gravity of the base layer 12 made of a high specific gravity material is 1.5 g / cm ³ or more.

  On the surface of the base mat 10 on the surface layer 11 side (hereinafter referred to as the upper surface), grooves 13A for accommodating the heat medium distribution pipes (hereinafter also simply referred to as pipes) 20A and 20B, respectively. , 13B are provided.

  As shown in FIGS. 2 and 3, the one groove 13A extends in a substantially U shape along the left and right sides and the front side of the base mat 10, and both end sides thereof are formed on the base mat. In the vicinity of the rear end of 10, the left and right end surfaces of the base mat 10 are communicated with the direction of the left and right sides so as to be separated from each other. As long as the groove 13A communicates with the left end surface and the right end surface of the base mat 10, the groove 13A does not have to extend in a substantially U-shape. For example, it may be linear or wavy.

  The other groove 13B extends in a substantially U shape around the left and right sides and the front side of the base mat 10 at the inner side of the groove 13A. The direction of the base mat 10 is changed to the left and right sides so as to be separated from each other on the rear end side of the base mat 10 rather than the both end sides, and communicates with the left end face and the right end face of the base mat 10, respectively.

  That is, as shown in FIG. 3, both ends of the groove 13B face the vicinity of the rear ends of the left and right side end surfaces of the base mat 10, and both ends of the groove 14A face slightly forward. Further, the end portion of the grooves 13A and 13B facing the left end surface of the base mat 10 and the end portion of the grooves 13A and 13B facing the right end surface are symmetrical with respect to the center line Lc between the left and right side end surfaces. Symmetric (left-right symmetric) arrangement.

  In this embodiment, the base mat 10 is provided with a heat conductive thin layer 15 made of an aluminum plate or the like on its upper surface. The heat conductive thin layer 15 is fixed to the upper surface of the base mat 10 with an adhesive or a pressure sensitive adhesive. The heat conductive thin layer 15 covers the entire flat surface of the upper surface of the base mat 10 and also covers the entire inner surfaces of the grooves 13A and 13B.

  In the vicinity of the periphery of the upper surface of the base mat 10 (in this embodiment, the upper surface of the heat conductive thin layer 15), a flat fastener (not shown) such as Velcro (registered trademark) is provided along the periphery. ing. When the base mat 10 is large, a similar flat fastener may be provided at the center of the base mat 10.

  The pipes 20A and 20B are respectively routed from one side end surface of the base mat 10 to the other side end surface so as to be fitted into the grooves 13A and 13B. In this embodiment, each of the pipes 20A and 20B is made of a flexible hose. In the state where the pipes 20A and 20B are accommodated in the grooves 13A and 13B, respectively, the pipes 20A and 20B are arranged so that the uppermost portions of the pipes 20A and 20B are flush with the upper surface of the heat conductive thin layer 15 or slightly lower. It is preferable that the pipe diameters of 20A and 20B and the dimensions of the grooves 13A and 13B are set. By doing in this way, it becomes possible to increase the amount of heat transfer from each piping 20A, 20B to the surface material 30.

  A male joint 21 is provided at one end of each of the pipes 20A and 20B, and a female joint 22 into which the male joint 21 can be fitted is provided at the other end. Reference numeral 21 a in FIG. 7 indicates a packing attached to the outer periphery of the male joint 21. In this embodiment, male joints 21 and 21 of both pipes 20A and 20B are arranged on the left end surface of the base mat 10 in FIG. 3, and female joints 22 and 22 of both pipes 20A and 20B are arranged on the right end face. Has been placed. However, the arrangement of the male joint 21 and the female joint 22 may be reversed between the pipe 20A and the pipe 20B.

  As shown in FIG. 3, in this embodiment, the male joint 21 and the female joint 22 extend from the both ends of the grooves 13A and 13B to the outer side of the both sides of the base mat 10 respectively. However, for example, only the male joint 21 may extend outward from the side end surface, and the female joint 22 may have a tip surface substantially flush with the side end surface.

  The surface material 30 is provided on its lower surface with a flat fastener (not shown) that engages with a flat fastener on the upper surface of the base mat 10, and is attached to the upper surface of the base mat 10 with these flat fasteners. ing. In this embodiment, the surface material 30 is a rectangular plate body having substantially the same dimensions as the base mat 10 on the plate surface.

  In this embodiment, the base mat 10 has a structure in which a surface layer 11 made of a plate-like low specific gravity material and a base layer 12 made of a plate-like high specific gravity material are laminated. As a whole, it may be composed of a uniform high specific gravity material.

  In this embodiment, the grooves 13A and 13B of the base mat 10 have a square cross section, but may be U-shaped grooves 13A 'and 13B' as shown in FIG. Other cross-sectional shapes may be used.

  In this embodiment, the heat conductive thin layer 15 covers the entirety of the grooves 13A and 13B. However, as shown in FIG. 5, a plurality of the heat conductive thin layers 15A, 15B and 15C are used to form the base mat 10. The drooping pieces 15a, 15b, 15c formed by bending the side edges of the heat conductive thin layers 15A, 15B, 15C may be along the side walls of the grooves 13A, 13B. In this case, the bottom surfaces of the grooves 13A and 13B are not covered with the heat conductive thin layer.

  Alternatively, as shown in FIG. 6, the heat conductive thin layer 15D may be provided so as to cross the upper side of the pipes 20A and 20B in the grooves 13A 'and 13B'. In this case, the heat conductive thin layer 15D is detachably attached to the base mat 10 by a flat fastener or the like.

  Next, the installation construction procedure of the heating system using the heating mat 1 having such a configuration will be described with reference to FIG. 8 and FIG.

  First, a plurality of heating mats 1 are laid out in a row on the seating surface of an existing stepped bench 40 such as an entire event field or a stadium, with the left and right side end surfaces facing each other. Then, as shown in FIG. 7A to FIG. 7B, the male joint 21 and the female joint 22 facing each other between the adjacent heating mats 1 and 1 are connected. Further, in the heating mat 1 on the end side (left end side in FIGS. 8 and 9) arranged in this row, a pair of connecting joints facing each end (in this embodiment, male type) The joints 21, 21) are connected by a communication pipe 23 and communicated with each other.

  After all the heating mats 1 are arranged in a row, as shown in FIG. 9, the heating mat is arranged at the end (the right end side in FIG. 8) opposite to the side on which the communication pipe 23 is attached. 1 to a pair of connecting joints (female joints 22 and 22 in this embodiment), a heat medium forward pipe 51 from the heat source device 50 (a branch pipe 51a from the forward pipe 51) and a heat medium The return pipe 52 (the branch pipe 52a from the return pipe 52) is connected to each other.

  The same construction is performed for the benches 40 on and after the second stage.

  Then, the bench 40 can be used as a heating bench by circulating the heat medium from the heat source device 50 to the pipes 20A and 20B. In this embodiment, hot water is used as the heat medium, but the present invention is not limited to this. Since heat from the pipes 20A and 20B spreads over a wide range via the heat conductive thin layer 15, the wide range of the surface material 30 is sufficiently heated.

  In this way, with a simple work of laying a plurality of heating mats 1 in a row while connecting the pipes 20A, 20A and the pipes 20B, 20B through the joints 21, 22 for connection, The bench 40 can be a heating bench in a short time. In this embodiment, since the male joint 21 and the female joint 22 are used as connecting joints between the pipes 20A and 20A and between the pipes 20B and 20B, it is very easy to connect them. Can do.

  Further, when the heating system is removed after the event or competition is over, the joints 21 of the adjacent heating mats 1 and 1 are separated after separating the heating mat 1 and the heat source device 50 on the end side arranged in a line. , 22 can be removed by simply collecting each heating mat 1 while releasing the connection between the two, so that the heating system can be removed very simply and quickly. Of course, it is obvious that the recovered heating mat 1 can be reused again.

  In this embodiment, since the surface material 30 and the pipes 20A and 20B constituting the heating mat 1 are detachable from the base mat 10, maintenance and the like of the heating mat 1 can be easily performed. .

  In this embodiment, since the connection joints 21 and 22 are disposed in the vicinity of the rear end of the heating mat 1, when the heating mat 1 is laid on the bench 40, these joints 21 and 22 are connected to the bench 40. It comes to be located in the back side. Therefore, for a person sitting on the bench 40, the joints 21 and 22 are located behind the body as shown in FIG. 3, and the hands and fingers are prevented or suppressed from touching the joints 21 and 22. Become so.

  As shown in FIG. 9, in this embodiment, for each bench 40, branch pipes 51a and 52a are extended from the heat medium forward pipe 51 and the heat medium return pipe 52 from the heat source unit 50, respectively. A parallel hot water supply method is employed in which the branch pipes 51a and 52a are connected to the pipes 20A and 20B of the heating mat 1 disposed on the bench 40, respectively. If it does in this way, the hot-water supply temperature to piping 20A, 20B of each bench 40 will become equivalent, and a temperature nonuniformity will become small.

  Further, in this hot water supply system, not only the hot water supply temperature to each bench 40 becomes the same, but also the temperature of each heating mat 1 in each bench 40 is substantially equalized.

  That is, the hot water divided from the heat transfer pipe 51 to the pipe 20A flows from the right side to the left side in FIG. 9, and gradually decreases in temperature during this period. This hot water then flows from the left heating mat 1 to the right through the communication pipe 23 and gradually cools down. Accordingly, the hot water temperature in the outward piping 20A is higher as it is on the right side, but the hot water temperature in the return side piping 20B is lower as it is on the right side. As a result, the amount of heat dissipated from the left and right heating mats 1 is substantially the same, and it is possible to sense the warmth at an appropriate temperature when sitting at any position on the bench 40.

  However, when the number of benches 40 is small, etc., as shown in FIG. 10, the heat transfer pipes from the heat source unit 50 are respectively connected to the piping 20A of the heating mat 1 in the front row and the piping 20B of the heating mat 1 in the last row. 51 and the heat medium return pipe 52 are connected (or vice versa), and between them, the piping 20B of the heating mat 1 on the front row side and the piping 20A on the rear row side are respectively connected to the piping 53 for communication. A hot water supply path may be constructed in series.

  In addition, as shown in FIG. 11, the heat transfer pipes 51a 'and 51a' are connected to both the pipes 20A and 20B of the heating mat 1 in the front row, and both the pipes 20A and 20B of the heating mat 1 in the last row. The heat medium return pipes 52a ′ and 52a ′ are connected, and between these, the pipes 20A and 20B and 20B and 20A between the heating mat 1 on the front row side and the heating mat 1 on the rear row side (or the piping 20A, 20A and 20B, 20B) may be connected by communication pipes 54 and 55, respectively, to construct a series hot water supply path.

  FIG. 12 is a plan view of a heating mat 1 'according to another embodiment.

  The heating medium distribution pipes 20A ′ and 20B ′ of the heating mat 1 ′ are such that the left ends of the pipes 20A and 20B in the heating mat 1 of the above-described embodiment are communicated in a loop shape inside the base mat 10. It has a configuration. Note that the routing path from the middle of the pipes 20A 'and 20B' to the right end side is the same as the routing path of the pipes 20A and 20B in the heating mat 1. Further, female joints 22 and 22 are provided on the right end side of the pipes 20A 'and 20B'. The arrangement of the female joints 22 and 22 is the same as the arrangement of the female joints 22 and 22 in the heating mat 1.

  The heating mat 1 ′ is used so as to be arranged at the position of the leftmost heating mat 1 of each bench 40 in FIGS.

  When this heating mat 1 'is used, it becomes unnecessary to attach the communication pipe 23 to the heating mat on the end side, the construction work of the heating bench is further simplified, and the piping from the heating mat 1' on the end side is further simplified. Is prevented from being exposed.

  FIG. 13 is a perspective view of a heating mat 1A according to still another embodiment, FIG. 14 is a side view showing the use state of the heating mat 1A, and FIG. 14 is the vicinity of the joint between the adjacent heating mats 1A and 1A. It is the figure (elevated view) which looked at from the rear side.

  In the heating mat 1A, a protruding step 16 that protrudes upward from the upper surface of the base mat 10A is provided at the rear of the base mat 10A. The protruding step 16 is formed at substantially the same height along the rear side of the base mat 10A over the entire width in the left-right direction of the upper surface of the base mat 10A. However, the shape of this convex step part 16 is not limited to this. In this embodiment, the surface material 30 </ b> A covers a portion of the upper surface of the base mat 10 </ b> A that is on the front side of the convex step portion 16 and a step surface on the front side of the convex step portion 16. The surface material 30A may cover the upper surface and the rear end surface of the convex step portion 16.

  Moreover, as shown in FIG. 15, in this embodiment, from the left and right end surfaces of the convex step portion 16 to the side (the direction toward the adjacent heating mat 1) from the left and right side end surfaces of the base mat 10A. Overhang portions 16a and 16a are provided to overhang. As shown in the figure, in this embodiment, the male joints 21 and 21 and the female joints 22 and 22 are respectively arranged in regions on the lower side of the projecting portion 16a on the side end surfaces of the base mat 10A. ing.

  The other structure of this heating mat 1A is the same as that of the above-mentioned heating mat 1, and the same code | symbol has shown the identical part.

  The method for installing and installing the heating bench using the heating mat 1A is the same as that of the above-described embodiment.

  In this heating mat 1A, since the convex step portion 16 is provided on the rear end side of the upper surface thereof and the thickness of the rear end side is increased, the heating mats 1A, 1A are laid out side by side to each joint 21. , 22 are connected to each other, the joints 21 and 22 are present at a deep position in the gap between the heating mats 1A and 1A. Therefore, the hand or finger of a person sitting on the heating mat 1A becomes more difficult to touch the joints 21 and 22.

  In particular, in this embodiment, since the projecting portions 16a and 16a project from the protruding step portions 16 of the adjacent heating mats 1A and 1A to the gap between them, the hands and fingers touch the joints 21 and 22 extremely. It is difficult.

  The above-described embodiment is an example of the present invention, and the present invention can take still another aspect. Such another configuration and conditions, materials, etc. suitable for use in the present invention will be described below.

[Pipe for heat medium distribution]
As the piping for circulating the heat medium, a flexible tube is usually used, and examples thereof include a crosslinked polyethylene tube, a polybutene tube, and a copper tube.

  The outer diameter of the pipe is usually 5 to 27 mm, preferably 7 to 17 mm, the inner diameter is usually 4 to 23 mm, preferably 5 to 13 mm, and the wall thickness is usually 0.5 to 3.0 mm, preferably 1.0 to 2 mm. 0 mm. If the outer diameter of the piping is excessively small, a sufficient amount of the heat medium cannot be circulated through the heating mat. Conversely, if the piping is excessively large, it is necessary to increase the thickness of the heating mat. Moreover, when the thickness of the pipe is excessively thin, the strength is insufficient. On the other hand, when the pipe is excessively thick, the amount of the heat medium circulating with respect to the outer diameter of the pipe decreases, which is not preferable.

  In addition, the cross section (cross section orthogonal to the length direction) of this piping does not necessarily need to be circular, and may be elliptical or the like. The piping may be routed along routing routes other than those illustrated.

  Two pipes are enough, but more pipes may be provided. In this case, the number of pipes is preferably an even number, but may be an odd number. It is sufficient that two pipe connection joints are provided on each side end face of the base mat. However, when more than two pipes are provided, three or more connection joints may be provided. In this case, some pipes may be connected to a common connecting joint, or all the pipes may be provided with connecting joints.

  The male and female joints for connection are simple and preferable, but are not limited thereto. In order to prevent the joints in the connected state from being carelessly separated, it is preferable that a lock mechanism is provided.

[Heat medium]
Examples of the heat medium that passes through the pipe include hot water that is a liquid heat medium, heated oil, and water vapor that is a gas heat medium, but a liquid heat medium, particularly hot water, is preferable.

[Substrate mat]
The base mat may be of a single layer structure made of a high specific gravity material, has a multilayer structure of a base layer made of a high specific gravity material and a surface layer made of a low specific gravity material, and grooves are formed on the surface layer side. It may be. The base mat is not necessarily limited to a two-layer structure of a base layer made of a high specific gravity material and a surface layer made of a low specific gravity material, and one or more intermediate layers having an intermediate specific gravity are laminated between the surface layer and the base layer. May be.

The high specific gravity material constituting the base mat has a density of 1.5 g / cm ³ or more, and returnability (“returnability” is the performance of returning to the original shape without causing residual strain when the load is removed. It is preferably a material that is excellent in friction and has a large frictional force with respect to the surface to be heated on which the base mat is provided, and does not easily shift. For example, a rubber composition, an elastomer composition, an asphalt material, or the like is used. Can be mentioned. When the density of the high specific gravity material is less than 1.5 g / cm ³ , the base mat becomes light and easily misaligned. The density of the high specific gravity material is preferably 2.0 to 3.0 g / cm ³ .

When a base layer made of such a high specific gravity material has a laminated structure with a surface layer made of a low specific gravity material, as the low specific gravity material, a polystyrene foam resin having a density of about 0.02 to 0.1 g / cm ³ , a polyolefin type Foamed materials such as foamed resins, phenolic foamed resins, rubber foamed materials, etc. can be used, and by using such a low specific gravity material, the feel of the base mat is enhanced, for example in a heating system for seats. The seating comfort can be improved as well as the heat insulation on the lower surface and the heat insulation of the piping.

The shape of the base mat in plan view is selected according to the shape of the object to be heated, and can be any of a rectangular shape such as a triangle, a quadrangle, a pentagon, a rhombus, a parallelogram, a trapezoid, a circle, such as an ellipse, and a perfect circle. In the case of a rectangular shape, there may be R at the corners. When the base mat is a square, the dimension of the base mat is about 300 to 900 mm on a side. For example, as in each of the above-described embodiments, the pipe connection joint is near the rear end of each side end face of the base mat. In the case of the configuration arranged in the region, the base mat preferably has a depth of about 300 to 600 mm and a left and right width of about 300 to 900 mm. Moreover, when the base mat has a shape other than a square, the area of the plate surface of the base mat is preferably about 0.09 to 0.54 cm ² .

  In particular, in the seat heating system, the area of the plate surface of the base mat is preferably a dimension corresponding to the seat surface for one person. However, the heating mat of the present invention may be one for two persons or more.

  The thickness of the base mat is determined in consideration of the diameter of the heat medium circulation pipe, portability, durability, and the like, but is usually 9 to 35 mm, and particularly preferably 12 to 20 mm. If the thickness of the base mat is excessively thin, a groove that can accommodate the piping for circulating the heat medium cannot be formed, and if it is thick, the handleability is deteriorated. It becomes too high and makes you feel uncomfortable.

  In addition, when the base mat has a two-layer structure of a base layer made of a high specific gravity material and a surface layer made of a low specific gravity material, the thickness of each layer varies depending on the material used, but the thickness of the base layer made of a high specific gravity material Is preferably 2 to 10 mm, the thickness of the surface layer made of the low specific gravity material is 6 to 30 mm, and the groove is preferably formed only on the surface layer made of the low specific gravity material because the groove processing becomes easy.

  Further, the width of the opening of the groove for housing the heat medium circulation pipe provided on the base mat is the same as the outer diameter of the heat medium circulation pipe or slightly smaller than this, for example, 0.1-2. It is preferable to increase it by about 0.0 mm. If the groove is formed so that the cross-sectional shape perpendicular to the extending direction is U-shaped, it is convenient when the heat medium circulation pipe is embedded. However, the cross-sectional shape of the groove is not limited to this. It is preferable in terms of thermal efficiency that the depth of the groove is equal to the outer diameter of the heat medium circulation pipe, and the upper part of the heat medium circulation pipe is brought into contact with the surface material directly or via a heat conductive thin layer.

  Although not shown, wide portions may be provided at both ends of the groove. The wide part is preferably larger by about 5 to 30 mm than the width of the central part of the groove, and the groove depth is preferably about 0 to 2 mm deeper than the depth of the central part. Such a wide portion is preferably, for example, a portion of about 3 to 10% at both ends of the entire length of the groove.

  The opening area of the groove is closely related to the heat medium flow area of the base mat, but the total opening area of the groove is 1 to 50% of the area of the groove forming surface of the base mat, especially 3 It is preferably ˜20%. If the opening area of the groove is smaller than this range, it corresponds to a small heat dissipating area, and a sufficient heating effect cannot be obtained. If it is larger than this range, the durability of the base mat is impaired. In addition, it may be difficult to route the heat medium distribution pipe.

[Heat conductive thin layer]
As the heat conductive thin layer, a metal foil having high heat conductivity can be used, and by providing the heat conductive thin layer, uniform heat dissipation from the surface of the heating mat can be enhanced. Examples of the metal foil include aluminum foil, tin foil, stainless steel foil, and copper foil. Among these, aluminum foil is preferable from the viewpoints of manufacturing difficulty and cost. If the thickness of the heat conductive thin layer is too thin, the strength is not sufficient. If the thickness is too thick, the product becomes heavy and the cost is increased. Therefore, it is usually preferable to select the thickness within the range of 30 to 200 μm.

  In the embodiment shown in FIGS. 4 and 5, the heat conductive thin layer is preferably fixed to the base mat with an adhesive or a pressure sensitive adhesive. Further, in the embodiment shown in FIG. 6, it is preferable that the base mat is not attached to the base mat but is detachably attached by a flat fastener, a weak adhesive tape, a snap button, a clip or the like.

  The heat conductive thin layer is usually formed following the shape of the groove forming surface of the base mat.

[Surface material]
Surface material is provided for beautification of the surface, decoration, water resistance, weather resistance, other functional improvements, prevention of floating of the heat medium distribution pipe, and prevention of excessive local heat transfer. For example, those having excellent water resistance and weather resistance such as cushion floors, tiles, and stones are used.

  The surface material is usually formed in the same shape and the same area as the groove forming surface of the base mat or a slightly larger area, and the thickness varies depending on the material, but is usually about 2 to 12 mm.

  The surface material may be provided with various patterns, for example, numbers or letters indicating seat numbers, or coloring.

  The surface material is preferably bonded to the heat conductive thin layer (base mat when no heat conductive thin layer is provided) by a detachable bonding means. Any material can be used as long as it prevents the heat medium distribution pipe from floating during the heat medium distribution and can sufficiently fix the surface material. For example, a flat fastener, a hook button, an uneven or key-like engagement tool, weak adhesion, etc. Tapes, magnets, etc. can be used.

[Attaching the heating mat]
When installing a heating mat consisting of a base mat, piping, and surface material (thermally conductive thin layer as necessary) on the surface to be heated, the heating mats are not necessarily arranged without gaps, There may be a gap between them. The larger the gap, the greater the degree of freedom of installation of the heating mat, but it becomes difficult to protect the piping and connecting joints. Therefore, the gap is selected in consideration of these functions. The gap between the heating mats is usually 5 cm or less, particularly 3 cm or less, particularly 1 cm or less. The combination of providing the gap and increasing the width of the groove end of the base mat as described above. The best one can be selected. Practically, a gap of about 0.3 to 1 cm is provided, and the wide portion of the groove end portion of the base mat is made to be about 0.2 to 0.9 cm larger than the other portions (wide or deep). Is preferred.

  There are various ways to arrange the heating mat on the surface to be heated, depending on the shape of the heating mat. By using flexible heat medium distribution piping, linear, curved, meandering, radial, polygonal, etc. It can be arranged in various shapes.

[Supply of heating medium to heating mat]
As described above, the heating medium heated by an external heat source device (such as a heat source machine) is supplied to each heating mat by being distributed to the heat medium distribution pipe by the heat medium main pipe. This heat medium main pipe is used for a so-called forward pipe and heating, to which a heat medium of a relatively high temperature (usually about 40 ° C. or more and 80 ° C. or less for a seating surface) is supplied from the heat source device. It is composed of a so-called return pipe that is relatively low in temperature (usually 30 ° C. or more and 50 ° C. or less for the bearing surface) and returns to the heat source device. In addition, after returning to a heat-source apparatus, it is heated again and a heat medium is circulated and used.

  As shown in FIG. 9, the piping of each heating mat may be provided with the forward pipe and the return pipe on one base mat, or only one of them as shown in FIG. In order to average the heat utilization, it is advantageous to provide a return pipe and an outgoing pipe as described above.

[Other components]
As long as the effect of the present invention is not impaired, the heating mat according to the present invention may have an arbitrary layer on the surface material, between the surface material and the base mat, or under the base mat, as long as the effects of the present invention are not impaired. Can be laminated.

Examples of such are as follows.
(i) A cushion layer made of a synthetic resin foam material such as a rubber foam material, a urethane foam material, or an olefin foam material is provided on the surface material.
(ii) A layer for improving durability composed of a resin such as a synthetic resin sheet and a metal plate, a metal or a composite material thereof is provided on the surface material or between the surface material and the base mat.
(iii) A layer for imparting water resistance composed of a resin such as a synthetic resin film or an asphalt sheet is provided on the surface material or the base mat.

[Heating target surface]
The heating target surface of the heating system of the present invention is, for example, a bench installed in a theater, an aquarium, a stadium, an event venue, a park, a playground, or the like, and other floors, and may be indoors or outdoors.

  For any heating target surface, the heating system of the present invention does not need to be installed with the heating mat fixed to the heating target surface, and can be easily attached, removed, moved, and reused. In addition, the heating system of this invention is applicable not only to seat surfaces, such as a bench, but the backrest part of a seat, a step (floor surface), etc.

It is a perspective view of the heating mat which concerns on embodiment. It is a disassembled perspective view of the heating mat of FIG. It is a top (upper surface) figure of the heating mat of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is sectional drawing of the part similar to FIG. 4 which shows the other example of a base material mat. It is sectional drawing of the part similar to FIG. 4 which shows the other example of a base material mat. (A), (b) figure is a perspective view which shows the connection structure of the heating mats of FIG. It is a perspective view which shows the installation construction procedure of a heating system. It is a perspective view which shows the installation construction procedure of a heat-medium heating heating system. It is a perspective view which shows the installation construction procedure of a heat-medium heating heating system. It is a perspective view which shows the installation construction procedure of a heat-medium heating heating system. It is a top view of heating mat 1 'concerning another embodiment. It is a perspective view of heating mat 1A concerning another embodiment. It is a side view which shows the use condition of 1 A of heating mats of FIG. It is the figure (elevated view) which looked at the joint vicinity of heating mat 1A, 1A adjacent from the back side.

Explanation of symbols

1, 1 ′, 1A Heating mat 10, 10A Base mat 13A, 13A ′, 13B, 13B ′ Groove 15 Thermally conductive thin layer 16 Convex step 16a Overhang 20A, 20A ′, 20B, 20B ′ Piping 21 Male Type Fitting 22 Female Fitting 30, 30A Surface Material 40 Bench

Claims (13)

Piping for heat medium distribution is provided,
A first connecting joint in which one end of the pipe is connected to one side end surface;
In the heating mat provided with the second joint for connecting the other end of the pipe to the other side end surface,
An even number of the pipes are provided, and an even number of joints for connection are arranged on each side end face.   2. The heating mat according to claim 1, wherein two pipes are provided, and two connection joints are arranged on each side end face.   The connection joint on one side end face is a male joint, and the connection joint on the other side end face is a female joint into which the male joint can be fitted. Heating mat.   4. The arrangement of the connection joint on one side end face and the connection joint on the other side end face according to any one of claims 1 to 3, wherein the center line between the side end faces is a symmetry line. A heating mat characterized by the arrangement.   5. The heating mat according to claim 4, wherein each connection joint is arranged in an end vicinity region near one side in the longitudinal direction of each side end face.   6. The heating mat according to claim 5, wherein the thickness of the heating mat on the side end surface is larger in the region near the end than in other regions. The heating mat according to any one of claims 1 to 6,
The piping;
A plate-like base mat provided with grooves for accommodating the pipes on the plate surface, both ends of the groove facing the side surfaces of the base mat; and
A heating mat comprising a surface material overlapping the plate surface of the base mat. The heating mat according to claim 7, wherein the density of the base mat is 1.5 g / cm ³ or more. 9. The base mat according to claim 7 or 8, wherein the base mat has a laminated structure including a base layer and a surface layer, the groove is provided in the surface layer, and the density of the base layer is 1.5 g / cm ³ or more. The heating mat is characterized in that the density of is lower than the density of the base layer.   The heating mat according to any one of claims 7 to 9, wherein the base mat and the surface material are coupled by a detachable coupling means.   The heating mat according to any one of claims 7 to 9, wherein a thin thermally conductive layer is provided between the base mat and the surface material. In claim 11, the thermally conductive thin layer is fixed to the base mat,
The heating mat, wherein the heat conductive thin layer and the surface material are coupled by a detachable coupling means. A plurality of the heating mats according to any one of claims 1 to 12, wherein the side end surfaces are opposed to each other and arranged in a row,
While connecting adjacent heating mat joints,
In the heating mat on the end side arranged in a row, the heating system is formed by connecting connecting joints with a communication member.

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