JP2008089240A - Floor heating panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor heating panel capable of stably keeping its good appearance for a long period by preventing a surface portion of an electric floor heating system from bulging and deforming to a surface side caused by difference in expanding length by humidity absorption. <P>SOLUTION: In this floor heating panel A constituted by forming a hollow portion 10 on a rear face of an outer hull member 1 in a recessed state, placing a buried panel member 15 in the hollow portion 10, and sealing the hollow portion 10 by adhering a backer material 26 on a rear face peripheral edge portion of the outer hull member 1, block materials 8 are respectively adhered over an inner bottom face of the hollow portion 10 and the backer material 26, and the surface portion of the outer hull member 1 is reinforced by the backer material 26. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heating floor panel used in an electric heating floor system such as a house, and more particularly to a technique for suppressing the surface portion of the heating floor panel from being deformed into a bulging shape.

  Conventionally, what is shown by patent document 1 is known as this kind of a heating floor panel. In this case, the heater wire storage groove is formed in a predetermined wiring shape by stamping on the surface of the heat insulating material made of a mineral fiber plate, and the heater wire is previously wired in the heater wire storage groove of the heat insulating material. By forming it in a shape that matches the shape, storing it in the heater wire storage groove, and providing a heat equalizing plate made of a heat conductive plate on the heater wire storage groove side of the heat insulating material in contact with the heater wire, An embedded panel member is formed. On the other hand, an outer shell member is formed in which a recessed hollow portion is formed with the peripheral portion remaining on the back surface, and the embedded panel member is incorporated into the hollow portion of the outer shell member with the heat equalizing plate facing the floor material side. It is.

Such a heated floor panel is generally bonded and fixed to the floor base material with an adhesive.
JP 11-63533 A

  By the way, normally, the floor heating system is not used except in the fall or winter. When this floor heating is used, since the surface temperature of the heating floor panel is heated to about 30 to 35 ° C. and the temperature under the floor is about 40 to 45 ° C., not only the surface heating floor panel but also the floor base material is dried. Advances. After that, when the rainy season is reached after stopping the use of floor heating in spring, the heating floor panel and the floor base material absorb moisture and extend due to moisture.

  In that case, the hollow portion provided in the outer shell member is large, and the elongation allowance due to moisture absorption of the thin surface portion (bottom surface portion of the cavity portion) due to moisture absorbed from the surface is larger than the elongation allowance due to moisture absorption of the floor base material growing. For this reason, there is a problem that the surface portion swells in a drum shape (medium convex shape) between the frame portions of the heating floor panel, and becomes prominent by long-term use.

  The present invention has been made in view of such a point, and the object thereof is to devise the structure of the outer shell member of the heating floor panel, thereby suppressing the bulging of the surface side, and for a long period of time. The object is to provide a stable and beautiful appearance.

  In order to achieve the above object, according to the present invention, a block material is bridged between the inner bottom surface of the hollow portion on the back surface of the outer shell member (the back surface of the front surface portion) and the backer material bonded to the back surface of the outer shell member. The block member restricts the surface portion of the outer shell member from bulging and deforming to the surface side.

  Specifically, the heating floor panel according to the invention of claim 1 is provided with a decorative process on the front surface, and on the back surface is formed with a hollow portion that is recessed to leave the peripheral portion. An outer shell member that has been processed; an embedded panel member that is housed in the cavity of the outer shell member; and a backer material that is provided on the back surface of the outer shell member so as to close the cavity. ing.

  Then, at least one block member projects from the inner bottom surface of the hollow portion so that the front end surface is flush with the rear surface of the peripheral portion of the outer shell member.

  In addition, the embedded panel member is arranged so that the surface thereof is positioned in the cavity portion at the bottom side of the cavity portion, and the soaking is made of a thermally conductive plate-like body in which the insertion port through which the block material is inserted is punched. A plate, a heater wire disposed on the back surface side of the soaking plate, formed in a predetermined wiring shape, a thermostat coupled to the heater wire, and disposed on the opening side in the cavity, at least the block material It consists of the heat insulating material by which the insertion port through which is inserted is punched.

  Further, the backer material is integrally bonded to the back surface of the peripheral portion of the outer shell member and the front end surface of the block material.

  Further, in the invention of claim 2, a mineral fiber plate shape in which a heater wire storage groove is formed in a predetermined wiring shape by stamping on the surface, and a thermostat insertion portion and a block material insertion port are punched out. A heat insulating material made of a body and a shape that matches the wiring shape of the heater wire housing groove of the heat insulating material, and the heater wire housed in the heater wire housing groove and joined to the heater wire, for the thermostat A thermostat housed in the insertion portion, and a heat conductive plate-like body that is provided in contact with the heater wire and the thermostat on the heater wire housing groove side of the heat insulating material, and in which the insertion port for the block material is punched. An embedded panel member provided with a hot plate is provided.

  In addition, while the surface is decorated, the back surface is formed with a hollow portion that is recessed to leave the peripheral portion, and the block material faces the tip surface on the inner bottom surface of the hollow portion and the back surface of the peripheral portion. The outer shell member is provided in a projecting manner and the embedded panel member is incorporated in the cavity portion with the heat equalizing plate facing the front surface side, and the cavity portion is closed on the back surface side of the outer shell member. The backer material is provided, and this backer material is integrally bonded to the peripheral portion back surface of the outer shell member and the front end surface of the block material.

  According to the configuration of these inventions, a recessed hollow portion is formed on the back surface of the outer shell member, leaving a peripheral portion, and the embedded panel member is stored in the hollow portion. The hollow portion is closed by a backer material bonded to the back surface of the peripheral portion of the outer shell member. Then, a block material projects from the bottom surface in the cavity, and this block material is inserted into the heat insulating material in the embedded panel member and the insertion port of the heat equalizing plate, and the tip surface of the back material is bonded to the back surface of the outer shell member. Since they are bonded together, the surface portion of the outer shell member located at the intermediate portion other than the peripheral portion is connected to the backer material via the block material. As a result, the surface part of the outer shell member is reinforced by the backer material, and when the backer material is bonded to the floor base material, it is also reinforced by the floor base material. Can be surely prevented.

  In the invention of claim 3, a through hole smaller than the front end surface of the block material is punched in a portion corresponding to at least the block material of the back material, and the front end surface of the block material is backed by the portion excluding the through hole. Bonded to the material.

  According to this configuration, when the backer material is bonded to the floor base material during the construction of the heating floor panel, the block material can also be directly bonded to the floor base material through the through hole of the backer material. By connecting the surface portion located in the intermediate portion other than the peripheral portion to the floor base material via the block material and the backer material, the surface portion of the outer shell member is further prevented from bulging and deforming to the surface side. be able to.

  As described above, according to the first or second aspect of the present invention, the hollow portion is formed in the back surface of the outer shell member, the embedded panel member is stored in the hollow portion, and the rear surface peripheral portion of the outer shell member is stored. In the heated floor panel that seals the cavity by adhering the backer material, the surface part of the outer shell member is backered by laying blocks to be bonded between the inner bottom surface of the cavity and the backer material. Thus, the surface portion can be reliably prevented from bulging and deforming to the surface side due to a difference in elongation due to moisture absorption, and the appearance of the heating floor panel can be stably maintained for a long period of time.

  According to the invention of claim 3, a through-hole smaller than the front end surface of the block material is formed in at least a portion of the backer material corresponding to the block material, and the back surface of the block material is removed from the back hole by the portion excluding the through-hole. By adhering, the block material can also be directly bonded to the floor base material through the through-hole of the backer material, and the surface portion of the outer shell member can be prevented more reliably from bulging and deforming to the surface side. it can.

  Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or its application.

(Embodiment 1)
1 and 2 show a heated floor panel A according to an embodiment of the present invention. The heated floor panel A is an electric type constructed on a floor surface of a house or the like, and includes an outer shell member 1 and a block material 8. The embedded panel member 15 and the backer material 26 are provided.

(1) Outer shell member As shown in FIGS. 3 and 4, the outer shell member 1 is a rectangular shape whose one side is long in plan view, and has a rectangular shape as a flooring material on the surface side. It consists of a surface portion 2 (surface material) and a frame portion 3 (frame material) fixed to the back surface of the surface portion 2 so as to surround four sides. A concave cavity 10 surrounded by the frame 3 is formed on the back surface of the outer shell member 1, and the depth of the cavity 10 is equal to or slightly larger than the height of the embedded panel member 15. Set to dimensions. A plate-like object such as a rigid wood material is used for the surface portion 2. Further, a rigid material made of the same material as that of the surface portion 2 is used as the frame portion 3.

  On the other hand, instead of the fixing structure for fixing the frame portion 3 to the front surface portion 2 as described above, the cavity portion 10 is formed as a recess by cutting the back surface of the plate material (base material) having the same thickness as the frame portion 3. You can also In that case, it becomes an integrated structure in which the surface portion 2 and the frame portion 3 are integrated. Specifically, in order to produce the heating floor panel A having a thickness of 12 mm, for example, in the former fixing structure, the frame portion 3 having a thickness of 6 mm is bonded to the back surface of the surface portion 2 having a thickness of 6 mm, for example. The outer shell member 1 is formed. On the other hand, in the latter integrated structure, the outer shell member 1 is formed by cutting the cavity portion 10 having a predetermined depth on the back surface side of a plate material having a thickness of 12 mm. In the present invention, the latter integrated structure is more efficient, although not limited to any of them.

  On the surface of the outer shell member 1 (the upper surface of the surface portion 2), for example, a surface finishing material 12 is attached and subjected to a decorative process. Instead of the surface finish 12, a decorative process may be performed by integrally bonding a decorative board such as a wooden decorative board, a cushion floor, or a carpet to the upper surface of the surface portion 2.

  Further, actual processing is applied to the four circumferential side surfaces of the outer shell member 1 (the outer surface of the frame portion 3). Specifically, a female real part 4 is formed on one of the side surfaces facing the width direction of the outer shell member 1 by cutting an intermediate part in the thickness direction into a groove shape along the length direction, The male and female parts 5 are formed by cutting out the corners of the front and back surfaces in a rectangular shape. Further, a female real part 6 similar to the above is formed on one of the side surfaces facing the length direction of the outer shell member 1, and a similar male real part 7 is formed on the other side, and a plurality of heating floors are formed. When the panels A, A,... Are arranged in the width direction and the length direction, the other heating floor panel is connected to the female real parts 4, 6 of one outer shell member 1 of a pair of adjacent heating floor panels A, A. The male parts 5 and 7 of the outer shell member 1 of A are fitted and constructed.

(2) Block material As shown in FIGS. 3 and 4, the bottom surface in the cavity 10 of the outer shell member 1 has a plurality of, for example, cross-sectional rectangles extending in the vertical direction at positions away from the surrounding frame 3. Block members 8, 8,... Made of square-shaped square members are bonded and protruded integrally. The height of each block member 8 is the same as the depth of the cavity 10, and the front end surface of the block member 8 is positioned flush with the rear surface of the peripheral portion of the outer shell member 1.

  In addition, about each block material 8, when the back surface of the outer shell member 1 is cut as described above to form the hollow portion 10 to be recessed, the remaining portion is cut by cutting so as to leave a part. The block material 8 may be used. That is, an integrated structure in which the surface portion 2, the frame portion 3, and the block material 8 are integrated. This is preferable because the productivity is good, the strength is safe, and it is easy to ensure the flushness with the peripheral portion of the outer shell member 1.

  The plurality of block members 8, 8,... Are arranged at predetermined intervals in the length direction and the width direction of the outer shell member 1, respectively. That is, for example, as shown in FIG. 3, a pair of block members 8,... Are respectively provided at both ends in the length direction of the outer shell member 1 so that the long side direction of each cross section is the width direction of the outer shell member 1. Are arranged in parallel and in series in the width direction of the outer shell member 1, and three block members 8, 8,... 1 are arranged side by side so as to be parallel to the length direction of 1 and oblique to the length direction of the outer shell member 1.

  At this time, if the size of the block material 8 becomes excessively large, the soaking effect on the surface is hindered. When the size in the short side direction of the cross section is “width” and the size in the long side direction is “length”, the width is limited to about 10 mm to 30 mm, and preferably about 10 mm to 15 mm. Used. When the thickness is less than 10 mm, the strength is insufficient. On the other hand, when the thickness exceeds 30 mm, the soaking effect is inappropriate.

  On the other hand, if the length is too short, the adhesive is applied linearly to the back surface (lower surface) of the backer material 26 during the construction of the heating floor panel A. In this case, the adhesive application position and the block material 8 Since the position may be displaced, 20 mm or less is not preferable. In the example shown in FIG. 3, the width of each of the four (two pairs) block members 8, 8,... Located at both ends in the length direction of the outer shell member 1 is 12 mm and the length is 35 mm. The width of one block member 8 located at the center in the length direction is 12 mm and the length is 95 mm, and the width of each of the two block members 8 and 8 located between the center and the end in the length direction is 12 mm and long. The height is 55 mm.

  In addition, it is more preferable to disperse and arrange the block members 8, 8,... Having a small cross-sectional area than the elongated block members 8, 8,. ) Is very effective in preventing swelling. In order to suppress the swelling of the surface portion 2 and not to impair the soaking effect, in the case of a general heating floor panel A of about 300 × 1900 mm, the width is about 10 to 15 mm and the length is about 30 to 100 mm. It is preferable that about 6 to 10 block members 8 are arranged uniformly.

  The arrangement of the block members 8 is not limited to the arrangement shown in FIG. 3, and an appropriate layout can be adopted. For example, FIG. 7 shows three pairs of block members 8, 8,..., Each pair of block members 8, 8 faces the width direction of the outer shell member 1, and the “length direction” of each block member 8 is the outer shell. The members 1 are arranged at equal intervals along the length direction of the members 1. Each block member 8 has the same width of 12 mm and a length of 55 mm.

  FIG. 8 shows five pairs of block members 8, 8,..., Each pair of block members 8, 8 facing the width direction of the outer shell member 1, and the “length direction” of each block member 8 is outside. The shell members 1 are arranged at equal intervals along the length direction. Each block member 8 has the same width of 12 mm and a length of 35 mm.

(3) Embedded Panel Member The embedded panel member 15 is stored and incorporated in the recessed hollow portion 10 of the outer shell member 1 over almost the whole. As shown in FIG. 5, the embedded panel member 15 is arranged on the heat insulating material 16 having a long rectangular shape on one side in a plan view, and on the upper surface side of the heat insulating material 16 and processed into a wiring shape in advance. Heater wire 18, lead wire 19 and feed wire 20 derived from thermostat 21, and heat equalizing plate 23 provided on the upper side of each wire 18 to 20. The feed line 20 is used to electrically connect the heater wires 18 of the embedded panel member 15 between the adjacent heating floor panels A and A.

  As the heat insulating material 16, a hard plate-like heat insulating material such as hard urethane or a mineral fiber plate such as rock wool plate is preferably used. Since the block material 8 is provided, it is possible to use another soft heat insulating material, but this is not preferable because the bending during walking increases. In this case, the number of the block members 8 may be increased, but this is not preferable because the soaking effect on the surface portion 2 is hindered. That is, the heating floor panel A excellent in walking feeling can be obtained by the effect of the hard plate-like heat insulating material 16 and the plurality of block members 8, 8,.

  Specifically, for example, a rock wool plate (thickness of about 7 mm and specific gravity of about 0.3 to 0.5) using a water-soluble binder such as starch is used as the heat insulating material 16. A multi-layer structure in which a layer is made of a material having a specific gravity higher than that of the front and back layers can also be used. Specifically, the front and back layers are high-density layers made mainly of mineral fibers and inorganic powder, and the core layer is a light-weight inorganic foam such as shirasu foam, which is a light-weight layer of the main raw material. In this case, even if the total specific gravity is about 0.5 to 1.0, the core layer is likely to buckle, so that it can be applied to the case where fine grooves are formed.

  A heater wire storage groove 16a, a lead wire storage groove 16b, and a feed line storage groove 16c are formed in a predetermined wiring shape by stamping on the surface of the heat insulating material 16 made of the mineral fiber plate. Further, the heat insulating material 16 is punched with a thermostat insertion portion 16d and a block material insertion port 16e.

  The heater wire 18 is wire-like that is housed in the heater wire housing groove 16a of the heat insulating material 16, and is previously formed in a shape that matches the wiring shape of the heater wire housing groove 16a of the heat insulating material 16. The heater wire 18 is not particularly limited, but a wire 18a having a wire diameter reinforced by glass fiber or Kepler fiber and having a wire diameter of about 0.2 mm to 1.5 mm is covered with a jacket 18b of a thermoplastic resin. The outer diameter is 2.0 mm to 4.0 mm. Similarly to the heater wire 18, the lead wire 19 and the feed wire 20 are formed by covering the conductive wires 19a and 20a with the outer sheaths 19b and 20b of thermoplastic resin. The heater wire 18 is fixed to the heat equalizing plate 23 by thermal fusion while being connected to the thermostat 21.

  The thermostat 21 has substantially the same thickness as the heat insulating material 16 and is connected to the heater wire 18. The thermostat 21 is accommodated in the thermostat insertion portion 16 d of the heat insulating material 16. The thermostat 21 only needs to be thinner than the heat insulating material 16, and if it is thin, instead of the thermostat insertion portion 16d of the heat insulating material 16, a thermostat housing hole (not shown) corresponding to the shape of the thermostat 21 is provided as a heater wire. Similar to the storage groove 16a and the like, it may be provided by stamping.

  The soaking plate 23 is made of a thermally conductive plate, and is preferably a metal plate such as aluminum or stainless steel having excellent thermal conductivity of about 0.2 to 0.5 mm. The soaking plate 23 is provided on the heater wire housing groove 16 a side of the heat insulating material 16 so as to be in contact with the heater wire 18 and the thermostat 21. In the heat equalizing plate 23, at least a block material insertion port 23a is punched.

(4) Backer material The backer material 26 is made of plywood, cardboard, kraft paper, synthetic resin plate, cloth, non-woven fabric, glass cloth sheet, or a composite plate in which two or more thereof are combined. The backer material 26 has substantially the same size and shape as the surface portion 2 of the outer shell member 1, and its peripheral portion so that the outer peripheral surface is flush with the outer surface of the frame portion 3 of the outer shell member 1. The back surface and the front end surface of the block material 8 are integrally bonded. That is, as shown in FIG. 1, in the state where the embedded panel member 15 is incorporated into the cavity portion 10 of the outer shell member 1 from the back side, the opening on the back side of the cavity portion 10 is the lower surface as the backer material 26. By being sealed with the material 24, the heating floor panel A is formed.

  On the back surface of the backer material 26 (the lower surface in contact with the floor base material B), it is preferable that a mark that allows the position of the block material 8 to be known at the time of construction is provided in advance by printing or the like.

  The heating floor A is configured by combining the heating floor panel A having the above configuration in a row and a row according to the laying area of the room to be constructed.

(5) Manufacturing method of heating floor panel An example of a manufacturing method of the heating floor panel A when the heat insulating material 16 is a mineral fiber plate such as a rock wool board will be described with reference to FIG. First, water is applied to the upper surface (surface) of the heat insulating material 16. The application of water is performed by a sponge roll or the like, but if it is applied excessively, it takes time to evaporate the water. Therefore, the application amount is set to ⁴ to 8 g / scale ² over the entire upper surface of the heat insulating material 16. The application of water may be performed only on portions corresponding to heater wire storage grooves 16a, lead wire storage grooves 16b, and feed line storage grooves 16c, which will be described later. In addition, a thermosetting resin such as a water repellent or melamine may be mixed in the water to be applied. In that case, the water resistance of the upper surface of the heat insulating material 16 is improved as the moisture evaporates, and thereafter The dimensional change can be prevented more effectively, and the hardness of the upper surface is increased to improve the load resistance. This step is suitable for forming the good heater wire storage groove 16a, lead-out wire storage groove 16b, and feed wire storage groove 16c, but is not particularly required.

Then, although not shown in figure, the said heat insulating material 16 is carried in to a hot press. This hot press has a lower mold and an upper mold as a mold plate. On the lower surface of the upper mold, the wiring shape of the heater wire 18, the lead-out wire 19 and the feed wire 20 (see FIG. 5) is provided. Protrusions (molding surfaces) for the heater wire, the lead-out wire, and the feed wire that project in accordance with each other are formed. And after mounting the said heat insulating material 16 on the lower metal mold | die of the hot press so that a lower surface may become a lower side, it heat-presses by applying an upper metal mold | die from the upper surface side of the heat insulating material 16, and heat-pressing. A heater wire storage groove 16a, a lead-out wire storage groove 16b, and a feed line storage groove 16c are formed on the upper surface side of the material 16. At this time, the heating and pressurization of the hot press is performed at a pressure of ^{2 to 4} kg / cm ² by heating the upper die to 200 ° C. to 300 ° C. in advance.

  In this case, since the heat insulating material 16 is composed of the mineral fiber plate-like body excellent in the moldability and the small amount of return (springback) after the mold forming, on the upper surface side of the heat insulating material 16. The heater wire housing groove 16a, the lead-out wire housing groove 16b, and the feed wire housing groove 16c can be reliably and easily formed into a predetermined wiring shape by stamping.

  Thereafter, the thermostat insertion portion 16d and the block material insertion port 16e are punched into desired positions of the heat insulating material 16 corresponding to the meandering section of the heater wire 18. This punching process of the thermostat insertion portion 16d is necessary when the thermostat 21 (shown in FIG. 5) having a thermal fuse is formed to have substantially the same dimension as the thickness of the heat insulating material 16.

  On the other hand, the wiring shape in which the heater wire 18 is matched with the shape of the heater wire housing groove 16a formed in advance on the upper surface of the heat insulating material 16 by heating and pressurization, that is, the wiring shape meandering at a predetermined interval (see FIG. 5). ) Is temporarily processed.

  Next, as shown in FIG. 6 (a), the soaking plate 23 in which the block material insertion opening 23a is punched is heated, and the heated soaking plate 23 is preliminarily processed into the above-described wiring shape. The placed heater wire 18 is placed, and is fixedly wired to the heat equalizing plate 23 by thermal welding of the jacket 18b. Similarly, the conductive wire 16 and the feed wire 20 are fixedly attached to the heat equalizing plate 23 at predetermined positions. Thus, by fixing the heater wire 18 and the soaking plate 23 together in advance, the productivity of the embedded panel member 15 can be further improved, and the heat of the heater wire 18 can be soaked reliably and uniformly. It can be transmitted to the plate 23. In addition, since each of the wires 18 to 20 is fixed in a state in which the wiring shape is maintained by melting the jackets 18b to 20b on the heated soaking plate 23, each of the wires 18 to 20 can be used without using a special adhesive or the like. 20 is easily fixed to the soaking plate 23, which is very advantageous for improving the productivity of the embedded panel member 15.

  As shown in FIG. 6B, the outer shell member 1 is inverted so that the front surface portion 2 faces downward and the cavity 10 on the back surface opens upward. In this state, a plurality of block members 8, 8,... Standing on the bottom surface in the hollow portion 10 protrude upward.

  First, the heat equalizing plate 23 in which the heater wire 18, the lead-out wire 19, and the feed wire 20 are respectively melted and fixed in the above-described process in the hollow portion 10 is connected to the fixing side of the wires 18 to 20 from the opening of the hollow portion 10. It is mounted on the bottom surface in the cavity portion 10 (the back surface side of the front surface portion 2) so as to face upward. At that time, each block member 8 erected on the bottom surface in the hollow portion 10 is inserted into the block member insertion port 23 a of the heat equalizing plate 23.

  Thereafter, as shown in FIG. 6 (c), the heat insulating material 16 obtained in the above process is directed downward from the opening inside the hollow portion 10 of the outer shell member 1 with its storage grooves 16a to 16c facing downward. Then, the wires 18 to 20 on the soaking plate 23 previously assembled are accommodated in the accommodating grooves 16a to 16c, and the thermostat 21 is accommodated in the thermostat insertion portion 16d of the heat insulating material 16. . Further, the corresponding block material 8 is inserted into the block material insertion port 16 e of the heat insulating material 16. Accordingly, the wires 18 to 20 formed in advance in a shape matching the wiring shape of the storage grooves 16a to 16c of the heat insulating material 16 are easily stored in the storage grooves 16a to 16c. Therefore, it is not necessary to perform a groove processing or embedding work by a complicated router on the upper surface side of the heat insulating material 16. Moreover, since no large-scale equipment is required when foaming and curing the foamable synthetic resin liquid, the embedded panel member 15 can be formed with extremely high productivity.

  In this manner, the embedded panel member 15 is easily incorporated into the cavity 10 of the outer shell member 1, and the heater wire type electric heating floor panel A can be easily produced.

  Next, as shown in FIG. 6 (d), an adhesive is applied to each of the upper surface (back surface) of the frame portion 3 and the upper surface (tip surface) of each block member 8 located in the peripheral portion of the outer shell member 1, The backer material 26 is placed and fixed from above.

  Then, after the outer shell member 1 is turned upside down so that the surface portion 2 is located on the upper side and the backer material 26 is located on the lower side, the outer surface (upper surface) of the surface portion 2 is surface-finished according to preference. By sticking the material 12, the heated floor panel A shown in FIG. 1 is obtained. It should be noted that the embedding panel member 15 may be housed in the outer shell member 1 to which the surface finishing material 2 is previously attached.

(6) Heating floor panel construction method The heating floor panel A having the above-described configuration is a portion where the mark where each block material 8 is located on the back surface (lower surface) of the backer material 26 and at least a part of the peripheral portion. Then, the adhesive is applied to the floor base material B, as shown in FIG. At that time, the male real parts 5 and 7 of the outer shell member 1 of the other heating floor panel A are fitted to the female real parts 4 and 6 of one outer shell member 1 of the pair of adjacent heating floor panels A and A. To be constructed.

  Therefore, in this embodiment, the recessed hollow portion 10 is formed on the back surface of the outer shell member 1 in the heating floor panel A leaving the peripheral portion, and the embedded panel member 15 is stored in the hollow portion 10. The cavity 10 is sealed with a backer material 26 adhered to the back surface of the peripheral part of the outer shell member 1. A plurality of block members 8, 8,... Project from the bottom surface of the cavity portion 10, and each block member 8 passes through the heat insulating material 16 in the embedded panel member 15 and the insertion openings 16 e and 23 a of the soaking plate 23. After the insertion, the front end surface of the outer shell member 1 is integrally bonded to the backer material 26, so that the surface portion 2 located in the intermediate portion other than the peripheral frame portion 3 in the outer shell member 1 is backed by the block material 8. It will be connected to the material 26. In addition, the backer material 26 is bonded and fixed to the floor base material B by construction, and is also bonded at a position where the block material 8 is present. In this way, the surface portion 2 of the outer shell member 1 is reinforced by the backer material 26 and the floor base material B, and the surface portion 2 can be reliably prevented from bulging and deforming to the surface side due to a difference in elongation due to moisture absorption. it can.

(Embodiment 2)
FIG. 9 shows a second embodiment of the present invention (note that the same parts as those in FIGS. 1 to 8 are given the same reference numerals and detailed description thereof is omitted), and the block material 8 is directly applied to the floor base material B. It can be bonded.

  That is, in this embodiment, a through hole 27 is punched in at least a portion corresponding to the block material 8 in the backer material 26, and the through hole 27 is set to a size smaller than the tip end surface of the block material 8. Yes. The tip surface of the block material 8 is bonded to the backer material 26 at a portion excluding the through hole 27. Other configurations are the same as those of the first embodiment.

  Therefore, in this embodiment, when the backer material 26 is bonded to the floor base material B during the construction of the heating floor panel A, the block material 8 is also directly attached to the floor base material B through the through holes 27 of the backer material 26. Can be glued. For this reason, the outer shell member 1 is connected to the floor base material B through the block material 8 and the backer material 26 so that the surface portion located in the intermediate portion other than the peripheral portion is swelled to the surface side. It is possible to more reliably prevent the deformation.

(Other embodiments)
In addition, this invention is not limited to the said embodiment, Other various examples are included. For example, the structures of the first and second embodiments are combined, a part of the plurality of block members 8, 8,... Is the structure of the first embodiment, and the remaining block members 8 are the structures of the second embodiment. And may be adhered to the backer material 26 respectively.

  Moreover, in the said embodiment, although the jackets 18b-20b of the heater wire 18, the lead-out wire 19, and the feed wire 20 are fixed to the soaking plate 23 by melting, it may be fixed by an adhesive or an adhesive. Good.

  Moreover, in the said embodiment, although the heater wire accommodation groove | channel 16a, the outgoing line accommodation groove | channel 16b, and the feed wire accommodation groove | channel 16c are formed deeper than the diameter of each line 18-20, it forms in the same depth as the diameter of each line. May be.

  Furthermore, in the above-described embodiment, the heater wire 18 is wired in a meandering shape, but it can be formed in various heat efficient wiring shapes such as a zigzag shape.

  Next, specific examples will be described.

(Comparative Example 1)
A hollow portion having a depth of 6 mm was cut on the back surface of a wooden substrate having a thickness of 12 mm, a width of 300 mm, and a length of 1900 mm to provide an outer shell member. In the hollow portion of the outer shell member, a heat equalizing plate on which heat wires, thermostats, etc. are heat-sealed in advance, and a heater wire storage groove, etc. in the shape of a heat wire, are unevenly processed, and are in positions corresponding to the thermostat. An embedded panel member made of a heat insulating material from which the insertion portion was punched was assembled so that the soaking plate faced the floor surface side. Further, a modified vinyl acetate adhesive was applied to the periphery of the back surface of the outer shell member, and then a backer material in which a glass cloth sheet was sandwiched with kraft paper was placed and pressure-bonded to obtain a heated floor panel.

  A urethane adhesive is applied to the four sides of the back of the heated floor panel thus obtained and at a position spaced by 300 mm, and this heated floor panel is placed on the floor base material made of lauan plywood constructed on the large pull. It was fixed with the urethane adhesive and 38 mm floor nail.

(Comparative Example 2)
The heating floor panel is the same as that in Comparative Example 1, except that the floor base material is changed from lauan plywood to particle board.

(Example 1)
A hollow portion having a depth of 6 mm was cut on the back surface of a wooden substrate having a thickness of 12 mm, a width of 300 mm, and a length of 1900 mm to provide an outer shell member. At this time, cutting was performed so that a plurality of block members remained at predetermined positions on the inner bottom surface of the cavity. The arrangement layout of the block material is as in the first embodiment (see FIG. 3). Inside the cavity, there are a heat equalizing plate in which a heat wire, a thermostat, etc. are heat-sealed in advance and the insertion opening is cut out at a position corresponding to the block material, and a heater wire storage groove in the shape of a heat wire. A soaking plate is placed on the floor surface side of the embedded panel member, which is made of unevenness and has a heat insulating material in which the insertion part is cut out at a position corresponding to the thermostat and the insertion port is cut out at a position corresponding to the block material. Built to face. Furthermore, after applying a modified vinyl acetate adhesive on the back surface peripheral part of this outer shell member and the front end surface of each block material, a backer material composed of a glass cloth sheet sandwiched with kraft paper is placed and crimped A heated floor panel was obtained.

  A lauan was applied to the heated floor panel on the large pull by applying urethane adhesive to the four rounds on the back of the heated floor panel thus obtained and a position 300 mm apart (position corresponding to the block material). It was fixed on a floor base material made of plywood with urethane adhesive and 38 mm floor nail.

(Example 2)
The heating floor panel is the same as that in the first embodiment, except that the floor base material is changed from lauan plywood to particle board.

(Environmental testing)
For each of the above Examples and Comparative Examples, in the Environmental Laboratory of the Japan Building Research Institute, after drying for a certain period of time, drying and moisture absorption are repeated regularly under certain conditions, and the wet and dry conditions are switched. The warpage of the surface portion of the outer shell member was measured.

  That is, the amount of swelling of the surface of the outer shell member at five positions aligned along the length direction of the heating floor panel was measured. Specifically, at each of the five measurement positions, a digital gauge is applied to the peripheral portions (frame portions) on both sides in the width direction of the outer shell member surface, and the amount of swelling at the center portion in the width direction of the surface is measured. The average of the measured points was calculated and compared. The five measurement positions are the positions of the block members arranged side by side in the length direction of the heating floor panel in Examples 1 and 2, and in Comparative Examples 1 and 2, similar positions corresponding to the examples are used. Position. The results are shown in FIGS.

  According to FIGS. 10 and 11, when Example 1 and Comparative Example 1 are compared, or when Example 2 and Comparative Example 2 are compared, whether the floor base material is plywood or particle board. It can be seen that the fluctuation range of expansion and contraction is different, and that the fluctuation range of expansion and contraction due to wet and dry is larger in the particle board than in the plywood, and the drum-like deformation is likely to occur.

  However, in any case, it was confirmed that Examples 1 and 2 according to the present invention had a smaller fluctuation range of expansion and contraction due to wet and dry than Comparative Examples 1 and 2, and it was difficult for drum-like deformation to occur.

  Since the present invention can be used stably over a long period of time without deforming an electric heating floor panel, it is extremely useful and has high industrial applicability.

FIG. 1 is a sectional view of a heating floor panel according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing a state in which a part of the heating floor panel is cut away. FIG. 3 is a plan view of the outer shell member as seen from the back side. 4 is an enlarged sectional view taken along line IV-IV in FIG. FIG. 5 is a plan view showing a state in which the embedded panel member is partially cut away. Drawing 6 is an explanatory view showing a manufacturing process of a heating floor panel. FIG. 7 is a view corresponding to FIG. 3 showing a modified example of the layout of the block material. FIG. 8 is a view corresponding to FIG. 3 showing another modification of the layout of the block material. FIG. 9 is a view corresponding to FIG. 1 illustrating a heating floor panel according to Embodiment 2 of the present invention. FIG. 10 is a diagram showing the results of an environmental test. FIG. 11 is a diagram showing the results of an environmental test.

Explanation of symbols

A Heating floor panel B Floor base material 1 Outer shell member 4 Female real part 5 Male real part 6 Female real part 7 Male real part 8 Block material 10 Cavity part 12 Surface finishing material 15 Embedded panel member 16 Thermal insulation material 16e For block material Insertion port 18 Heater wire 21 Thermostat 23 Heat equalizing plate 23a Block material insertion port 26 Backer material 27 Through hole

Claims (3)

While the surface is subjected to cosmetic processing, on the back surface, a hollow part formed by recessing leaving the peripheral part is formed, and the outer shell member in which the actual processing is applied to the four circumferential sides,
Embedded panel member stored in the cavity of the outer shell member;
A backer material provided on the back surface of the outer shell member to close the cavity,
At least one block material is projected on the inner bottom surface of the hollow portion with the front end surface flush with the back surface of the peripheral portion of the outer shell member,
The embedded panel member is arranged so that the surface is positioned on the bottom surface in the cavity, and the surface is positioned on the bottom side of the cavity, and the soaking is made of a thermally conductive plate-like body in which the insertion port through which the block material is inserted is punched. The board,
A heater wire disposed on the back side of the heat equalizing plate and formed in a predetermined wiring shape, and a thermostat coupled to the heater wire;
It is arranged on the opening side in the hollow portion, and consists of a heat insulating material in which an insertion port through which at least the block material is inserted is punched,
The heating floor panel, wherein the backer material is integrally bonded to the back surface of the peripheral portion of the outer shell member and the front end surface of the block material. A heat insulating material made of a mineral fiber plate in which a heater wire housing groove is formed in a predetermined wiring shape by stamping on the surface, and a thermostat insertion portion and a block material insertion port are punched, and the heat insulation A heater wire housed in the heater wire housing groove and formed in a shape that matches the wiring shape of the heater wire housing groove of the material, and a thermostat joined to the heater wire and housed in the thermostat insertion portion; An embedded panel provided with a heat equalizing plate made of a thermally conductive plate-like body, which is provided in contact with the heater wire and the thermostat on the heater wire housing groove side of the heat insulating material, and the insertion port for the block material is punched. Members,
While the surface is decorated, the back surface is formed with a cavity that is recessed to leave the periphery, and the block material is flush with the back surface of the periphery on the inner bottom surface of the cavity. And an outer shell member in which the embedded panel member is incorporated with the heat equalizing plate facing the surface side in the cavity,
A backer material provided on the back side of the outer shell member to close the cavity,
The heating floor panel, wherein the backer material is integrally bonded to the back surface of the peripheral portion of the outer shell member and the front end surface of the block material. In the heating floor panel of Claim 1 or 2,
In the portion corresponding to the block material of the backer material, a through hole smaller than the tip surface of the block material is punched,
A heating floor panel, wherein the front end surface of the block material is bonded to the backer material at a portion excluding the through hole.

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