JP2000346389A - Bathroom floor heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate cleaning of bathroom and field work while enhancing electrical safety by combining a supporting frame for laying a floor heating panel on the floor surface of a bathroom with a drain outlet grating contiguous to the panel thereby making the floor surface of the bathroom barrier free at low cost. SOLUTION: The bathroom floor heater installed on the floor surface of a bathroom comprises a heating panel 1 incorporating a film-like heating layer 13, and a supporting frame 2 for laying the floor heating panel 1 on the floor surface of a bathroom having a height adjusting means. A drain outlet grating 3 and a drainage trap are provided contiguously to the heating panel 1. The heating panel 1 comprises a plastic film 11, an aluminum plate 12, a film-like heating layer 13 and a heat insulating material 14 laminated sequentially. The film-like heating layer 13 comprises a heating member and a coating member wherein the heating member includes carbon fibers, wires sandwiching paint containing carbon, heating metal wires, and the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a floor heating device for a bathroom. In more detail, it is possible to make the floor of the bathroom barrier-free at low cost, and it is excellent in electrical safety, does not break down, is easy to clean the bathroom, and is installed on site at the time of installation The present invention relates to a floor heating device for a bathroom that is easy to use.

[0002]

2. Description of the Related Art In recent years, bathrooms have become widespread in homes, and demands for floor heating systems in bathrooms for washing have been made in order to prevent strokes, colds, etc. due to low temperatures in the bathrooms in winter and to seek further comfort. Is growing.

At the same time, in an aging society, there is a demand for so-called barrier-free in order to prevent accidents such as fractures due to stumbling, etc. and to enable use of wheelchairs by making the floor height flat. Is growing.

As a conventional floor heating device for a bathroom of this type, a hot water type and a heating wire type have been proposed. Hot-water floor heating devices produce hot water using gas or the like as a heat source, or directly use hot water from a bath, and circulate the hot water in a pipe piped with copper, stainless steel, vinyl chloride pipes, or In this method, hot water is directly sprayed, and the amount of heat consumed is supplied by hot water.

[0005] On the other hand, in the case of the electric type, the floor of the bathroom is peeled off, and a resistance wire heater unit such as metal or carbon is buried under the floor, or the floor is heated by being integrally formed with the floor. System.

[0006]

However, the above-mentioned hot water heating system has the following problems. First, because the hot water circulates through the piping, it takes time for the entire system to heat up, and the spacing of the piping tends to cause temperature unevenness. There is a problem that it is difficult to control hot water, for example, there is a possibility that the entire function is impaired.

Secondly, since calcium in the hot water adheres to the pipe, there is a problem of removal and cleaning, and the service life of the hot water generator is short, and the equipment needs to be replaced every 5 to 7 years. There was a problem that maintenance was troublesome.

[0008] Further, the system for directly spraying hot water requires a small facility cost, but the hot water is drained, so that the hot water is wasted and there is a problem in economy.

[0009] On the other hand, the electric type has a problem that it cannot be installed in an existing bathroom if it is embedded in the floor in advance, and the method of shaving the floor and grounding the heater unit requires too much time and cost for construction. There was a problem.

[0010] When a simple method of laying on the floor of a bathroom is adopted, in order to protect the body from macroshock,
There was the problem that 100 volts had to be dropped to 24 volts.

Further, in order to make the bathroom floor barrier-free, the bathroom floor is peeled off, the water pipe is connected to an existing one, and the bathroom floor is newly constructed in accordance with the entrance / exit floor. Because of the necessity of large-scale design and construction, the construction had to be large and the cost was high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is possible to make the floor of a bathroom barrier-free at low cost, and it is excellent in electrical safety, does not break down, and An object of the present invention is to provide a bathroom floor heating device in which a bathroom can be easily cleaned and installation on site is easy.

[0013]

The present inventor has conducted intensive studies to solve the above-mentioned problems. As a result, the present inventors have developed a floor heating panel having a film-like heating layer therein and a floor heating panel. A bathroom floor capable of achieving the above object by combining a supporting frame having height adjusting means for mounting on a surface and a drain grating provided adjacent to the floor heating panel. The inventors have found that a heating device can be provided, and have completed the present invention.

That is, the present invention provides the following bathroom floor heating device.

[1] A bathroom floor heating device for heating a bathroom placed on the floor of the bathroom, the floor heating panel including a film-like heating layer, and the floor heating panel A bathroom, comprising: a support frame having height adjustment means for mounting a panel on a floor of a bathroom; and a drain grating provided adjacent to the floor heating panel. For floor heating equipment.

[2] The bathroom floor heating device according to [1], wherein the floor heating panel and the support frame are detachably connected to each other via attachment / detachment means.

[3] The above-mentioned [1] or [2], wherein the floor heating panel is formed by laminating and attaching a plastic film, an aluminum plate, a film-like heating layer and a heat insulating material in this order. Bathroom floor heating system.

[4] The bathroom floor heating device according to any one of [1] to [3], wherein the film-like heat generating layer is a carbon heater.

[5] The bathroom floor heating device according to any one of [2] to [4], wherein the attachment / detachment means is a hook-and-loop fastener.

[6] The floor heating device for a bathroom according to any one of [1] to [5], wherein the drain grating has a plurality of staggered through holes in the upper surface thereof. .

[0021]

The floor heating device for a bathroom according to the present invention has the following features.
A bathroom floor heating device for heating a bathroom placed on the floor of a bathroom, the floor heating panel including a film-shaped heating layer, and the floor heating panel is provided on the bathroom floor. Since it is configured to include a supporting frame having a height adjusting means for mounting on the floor and a drain outlet grating provided adjacent to the floor heating heating panel, the floor surface of the bathroom is reduced in cost. Thus, it is possible to make it barrier-free, improve electrical safety, eliminate failures, facilitate cleaning of bathrooms, and further facilitate on-site construction at the time of installation.

Further, the main operation of each component will be described separately. The provision of a heating panel for floor heating with a built-in heater can improve electrical safety and eliminate failures. Since the floor heating panel is provided with a support frame for mounting the floor heating panel on the bathroom floor, the bathroom floor can be made barrier-free at low cost. Since the drainage grating is provided adjacent to the base, the construction at the time of installation can be facilitated. In addition, since it is composed of such a combination of components, it can be individually disassembled and removed, and cleaning of the bathroom can be facilitated.

In addition, the floor heating device for a bathroom according to the present invention has a configuration in which the heating panel for floor heating and the support frame are detachably connected to each other through the detaching means as described above. Cleaning of the bathroom can be further facilitated.

Further, in the bathroom floor heating device of the present invention, as described above, the floor heating heating panel is formed by laminating and attaching a plastic film, an aluminum plate, a film-like heating layer and a heat insulating material in this order. With such a configuration, electrical safety can be further improved and on-site construction can be further facilitated.

Further, in the bathroom floor heating device of the present invention, as described above, since the film-like heat generating layer is formed of a carbon heater, electrical safety can be further improved.

Further, in the bathroom floor heating device of the present invention, since the attaching / detaching means is a hook-and-loop fastener as described above, the cleaning of the bathroom can be further facilitated.

Furthermore, the bathroom floor heating device of the present invention has a configuration in which the drain grating has a plurality of through holes formed in a zigzag pattern on the upper surface as described above.
The slippage of the floor can be reduced, and the water used in the bathroom, which is a concern on the barrier-free floor surface, can be prevented from remaining near the entrance of the bathroom or flowing out from the entrance.

[0028]

Embodiments of the present invention will be specifically described below with reference to the drawings. As shown in FIG.
As described above, the bathroom floor heating device of the present invention is a bathroom floor heating device that is mounted on the floor of a bathroom to heat the bathroom, and is used for floor heating with a built-in film-like heating layer. A heat generating panel 1 and a support frame 2 having height adjusting means for mounting the floor heating heat generating panel 1 on a floor of a bathroom.
A drain grating 3 provided adjacent to the floor heating panel 2 and, if necessary, a drain trap (FIG. 2).
), And if necessary, the floor heating panel 1 and the support frame 3 are detachably connected to each other via attachment / detachment means.

Hereinafter, each component will be described more specifically. 1. Heating panel for floor heating The heating panel for floor heating 1 having a built-in film-like heating layer used in the present invention is not particularly limited as long as it can improve electrical safety and eliminate failure. As a preferred example, as shown in FIG. 1, a plastic film 11, an aluminum plate 12, a film-like heat generating layer 13, and a heat insulating material 14 are laminated and adhered in this order. Hereinafter, each will be described in detail.

(1) Plastic Film The plastic film 11 used in the present invention is used as a covering material. The material is not particularly limited as long as it has water resistance, and examples thereof include vinyl chloride and polyester films. Among them, vinyl chloride is preferred because it is flexible and easy to stick. The thickness is preferably from 0.2 to 2.0 mm.
If it is less than 0.2 mm, the strength becomes weak, and if it exceeds 2.0 mm, it is uneconomical in cost. The surface may be subjected to decorative printing, non-slip treatment, or antibacterial treatment.

(2) Aluminum Plate The aluminum plate 12 used in the present invention uniformly transmits heat generated from a film-like heat generating layer 13 described later to the floor surface.
In addition to preventing uneven temperature distribution, a heat insulating material 1 described later
By sandwiching the film-shaped heat generating layer 13 between the heat generating member 4 and the film 4, the film-shaped heat generating body 13 can be protected from external force such as bending or shearing, and the life can be extended. Furthermore, since the film-shaped heating element 13 can be effectively protected from an impact or a scratch due to a drop of an object on the floor, electrical safety can be ensured. Its thickness is
3 to 2 mm is preferred. If it is less than 0.3 mm, the above effects cannot be exhibited effectively, and if it exceeds 2 mm, it is uneconomical in terms of cost.

The aluminum plate 12 preferably has a ground terminal connected to a ground wire. In this way, even in the event of a leakage or the like, the potential generated on the aluminum plate is grounded, and a permanent leakage breaker is operated to protect the user from electric shock.

(3) Film Heating Element The film heating element 13 used in the present invention can be composed of, for example, a heating member and a covering member for covering the heating member. Examples of the heat generating member include a carbon fiber, a carbon thin film, a material in which a carbon-containing paint is applied between conductive wires, and a metal conductive wire for heat generation. As the covering member 8, for example,
Examples include polyester resin films. Among them, a carbon heater having a structure in which a thin film containing carbon is coated between conductors and sandwiched between polyester films from both sides is preferable for further securing electrical safety as described below.

The carbon heater is normally controlled in the range of about 30 ° C. to 50 ° C., depending on the season. However, the temperature does not rise above the set upper limit and is steplessly lowered by the controller. be able to. Therefore, even if the temperature sensor breaks down, or even without a special temperature sensor, the temperature control function of the heater itself prevents the temperature from exceeding the set upper limit and stabilizes the floor temperature. It is possible to prevent accidents such as burns.

The thickness is preferably 0.5 to 1.5 mm. If it is less than 0.5 mm, it is difficult to obtain sufficient heat generation, and if it exceeds 1.5 mm, the step becomes large when sandwiched between the aluminum plate and the heat insulating material. The voltage applied to the heating member can be 100 V,
The voltage may be reduced to about 12 V for safety.

(4) Heat Insulation Material The heat insulation material 14 used in the present invention includes, for example, those made of foamed polyethylene resin, foamed styrene, and foamed polyurethane resin.

The thickness is preferably from 5 to 20 mm. 5
If it is less than mm, the heat insulating effect is small, and there is no space for sandwiching the sensor. If it is more than 20 mm, the whole becomes too thick and construction becomes difficult.

Between the heat insulating material 14 and the film-like heat generating layer (hereinafter, sometimes referred to as a carbon heater) 13, a temperature sensor for keeping the surface temperature of the heat generating panel constant and its wiring, if necessary, It is preferable to provide a wiring for the ground, a wiring for the heat generating member, and the like.

This arrangement is preferably performed by burying a temperature sensor or the like in a gap provided in the heat insulating material. This gap can be formed by scraping or crushing the heat insulating material.

By doing so, the carbon heater 13 has no irregularities, can be placed on the existing flat floor surface 32 as it is, and the trace of the heat generating member (heater wire) does not appear on the floor surface of the bathroom. Does not spoil the aesthetics.

The temperature sensor is not particularly limited. For example, a thermistor temperature sensor is preferable from the viewpoint of product stability and economy.

(5) Other Elements In the heating panel for bathroom floor heating according to the present invention, the plastic film 11, the aluminum plate 12,
It is preferable that the carbon heater 13 and the heat insulating material 14 are laminated and adhered. However, if necessary, a waterproof sheet 15 is provided between the carbon heater 13 and the heat insulating material 14 as shown in FIG. Is also good. Further, a second aluminum plate 16 may be provided outside the heat insulating material 14. There is no particular limitation on the means for attaching these, for example,
An adhesive (contact) adhesive layer may be provided between these.

Further, the periphery of the laminated body may be wrapped with, for example, an outer peripheral angle 17 so as to reinforce mechanical strength.
It is preferable in terms of ease of handling at the time of attachment and detachment and improvement of aesthetic appearance.

2. Support Frame The support frame 2 used in the present invention is not particularly limited as long as it has a height adjusting means.
As shown in FIG. 1, a combination of an aluminum square pipe 21 and an adjuster 22 can be used.

The aluminum square pipe 21 is used as a joist, but usually 3 to 10 pipes are preferable. The adjusters 22 are used for fine adjustment, but usually 5 to 30 adjusters are preferable. With this configuration, the height of the aluminum square pipe 21 required for making the floor barrier-free can be appropriately selected in advance by taking the dimensions of the bathroom in advance at the construction site. In addition, on-site construction at the time of installation can be facilitated. Further, when the aluminum square pipe 21 is combined with the adjuster 22, the height can be finely adjusted at the construction site by the adjuster 22, so that the on-site construction at the time of mounting can be further facilitated.

The structure of the adjuster 22 is not particularly limited as long as the height can be finely adjusted. For example, the structure of the adjuster 22 may be a combination of a bolt and a nut. Specifically, for example, a double-sided adhesive tape with release paper is attached to the upper and lower ends of the bolt portion, and the release paper at the upper end of the bolt portion is peeled off and fixed to the lower surface of the aluminum square pipe 21, and The heating panel 1 for floor heating is placed on the upper surface of the square pipe 21 and the lower end of the bolt portion is temporarily placed on the existing floor surface with the release paper attached, and then the nut portion is rotated to finely adjust the height. And finally,
Peeling off the release paper at the lower end of the bolt portion and fixing it to the existing floor surface can be mentioned.

3. Drain outlet grating A drain outlet grating 3 used in the present invention is provided adjacent to the floor heating panel 1 as shown in FIG. Although there is no particular limitation on the mode of the arrangement, for example, the floor heating panel 1 may be fitted into a notch 18 formed by cutting out a part of the floor heating panel 1, or the floor heating panel 1 may be fitted with a notch 18. It can be mentioned that it is provided adjacent to the entire side surface.

Although there is no particular limitation on the location of the drain outlet grating 3, it is usually preferable to provide the drain outlet grating 3 above the existing drain outlet 30. Drain outlet grating 3
A plurality of them may be provided, for example, as shown in FIG. 1, they may be provided above the existing drain port 30 and near the bathroom entrance 31. The drain grating 3 can be manufactured separately from the floor heating panel 1 in advance by taking the dimensions of the bathroom at the construction site in advance, thereby facilitating on-site construction at the time of installation. Can be. Furthermore, when mass-producing the floor heating panel 1 by standardizing the dimensions thereof, there is a problem of deviation from the dimensions of the bathroom at the construction site. By providing the drainage grating 3 on two adjacent sides of the drainage hole 3 so as to repair the gap,
The problem of the deviation can be overcome, and the cost can be reduced.

In FIG. 1, as shown in the drain grating 3 near the bathroom entrance 31, the through holes formed in the upper surface of the drain grating 3 are formed in a zigzag shape so that the floor slides as described above. Can be reduced, and water used in the bathroom can be prevented from remaining in the vicinity of the entrance of the bathroom or flowing out from the entrance, which is a concern on the barrier-free floor surface.

Furthermore, since the bathroom floor heating device of the present invention can be easily installed simply by placing it on an existing floor, there is a possibility that a bad smell is generated by drainage flowing on the existing floor. In view of this point, as another embodiment of the bathroom floor heating device of the present invention, a drain trap 4 as shown in FIG. 2 is provided between the floor heating heating panel and the inner wall 33 of the bathroom. It may be something. For example, the aluminum plate 12 of the floor heating panel can be bent as shown in FIG. 2 and its tip can be inserted into the drain trap 4. With this configuration,
When the water flows into the drain trap 4 and overflows, the space above the newly formed floor heating panel can be cut off from the space below the floor heating panel. It is possible to prevent a bad smell from leaking from the space below the heat generating panel. In this case, between the drain trap 4 and the inner wall 33 of the bathroom, it is preferable to apply a waterproofing treatment with a caulking agent, and to adhere and fix it. Further, the difference between the dimensions of the floor of the bathroom at the construction site and the dimensions of the heating panel for floor heating can be absorbed by the width of the drain trap 4.

4. Means for Attaching / Detaching Heating Panel for Floor Heating to Support Frame In the bathroom floor heating device of the present invention, it is preferable that the heat generating panel for floor heating and the support frame are detachably connected to each other via the attachment / detachment means. With such a configuration, both can be easily combined and separated,
Cleaning of the existing floor and the like can be further facilitated.
There is no particular limitation on such attaching / detaching means as long as it is lightweight and easy to operate. For example, a hook-and-loop fastener 5 can be used. As shown in FIG. 1, the hook-and-loop fastener 5 includes the floor heating heating panel 1 and the support frame 2.
It is preferable to use it by affixing it to the surfaces facing the aluminum square pipe 21 respectively. In FIG. 1, the aluminum square pipe 21 of the support frame 2 is shown.
Only those attached to are shown.

5. Manufacture of Bathroom Floor Heating Device The bathroom floor heating device of the present invention can be manufactured and assembled in a factory in advance, as described above, and can facilitate on-site construction and reduce costs. The following method can be mentioned as a production example. In other words, take the dimensions of the bathroom at the construction site, so that it fits the dimensions,
Producing a heating panel for floor heating of predetermined dimensions, selecting an aluminum square pipe and an adjuster for the support frame of an appropriate size, connecting the aluminum square pipe and the adjuster with, for example, a double-sided adhesive tape, etc.,
It can be mentioned that a drain grating having a predetermined size is manufactured by bending or the like. In this case, a standard product having a certain size may be used as the heating panel for floor heating, and the deviation from the size of the bathroom at the construction site may be adjusted by using a drain opening grating of an appropriate size. In any case, a hook-and-loop fastener is attached to each of the opposing surfaces of the floor heating panel and the aluminum square pipe of the support frame.

The production of the floor heating panel can be carried out, for example, as follows. As a material, a plastic film and a first adhesive (contact) adhesive layer (a polyvinyl chloride film with an acrylic adhesive, Neofloor manufactured by US 3M, thickness 0.3 mm), an aluminum plate (manufactured by Sumitomo Metals, thickness 0) .8 mm), a second adhesive layer (# 3M, manufactured by US 3M)
950, thickness 0.13 mm), carbon heater (manufactured by Sunrise, thickness 0.7 mm), third adhesive layer (# 950 manufactured by 3M USA, thickness 0.13 mm), heat insulating material (Kanegabuchi Chemical Industry Co., Ltd., canelite, 15 mm in thickness), a PVC film with an adhesive was laminated on an aluminum plate, then a second adhesive layer was laminated, and the liner paper was peeled off. Is laminated, and then a heat insulating material on which a third pressure-sensitive adhesive layer is previously laminated is laminated, and a double-sided adhesive (contact) tape is laminated on the lower surface of the heat insulating material.

A grounding terminal is attached to the aluminum plate, and a grounding lead wire (grounding wire) is connected to the grounding terminal with a flat screw and a nut. Connect the lead wire to the ground terminal in the next room via the protective cover, or connect the ground rod to the ground. As a result, a part of the carbon heater is destroyed, and even if water enters the part, the potential is grounded before reaching the person, the earth leakage breaker is activated, and the macro shock is released. To further secure the ground,
A ground wire may be provided between the floor and the heat insulating material.

Further, two terminals for connecting a power supply are attached to the lower side of the carbon heater, and lead wires are protruded therefrom. The temperature sensor is located directly below the carbon heater. Because these are thinner than insulation,
By shaving off a part of the heat insulating material or crushing it during bonding, the thickness of the carbon heater can be made uniform, and there is no protrusion on its surface, so it can provide a smooth flowing field it can.

6. Installation of a bathroom floor heating device in a bathroom A floor heating heating panel prepared in advance as described above,
A support frame having height adjustment means (eg, aluminum square pipes and adjusters) and a drain grating are installed in the bathroom. The following method can be mentioned as an example of installation. That is, the support frame connects the aluminum square pipe and the adjuster with a double-sided tape or the like in advance, but the lower end of the adjuster (for example,
A double-sided tape is attached to the surface opposite to the existing floor surface (the lower end of the bolt) with release paper attached, the support frame is temporarily installed on the existing floor surface, and the heating panel for floor heating is placed on top After finely adjusting the height by adjusting the adjuster (eg, nut), remove the floor heating panel,
Peel off the release paper at the lower end of the adjuster and fix it on the existing floor, then fix the heating panel for floor heating to the upper surface of the aluminum square pipe of the support frame via hook-and-loop fastener,
A drain grating may be provided adjacent to the floor heating panel (for example, fitted to a cutout). After that, predetermined electrical work and waterproofing work around water, etc. will be implemented. To clean the existing floor surface, one end of the floor heating heating panel may be lifted to release the hook-and-loop fastener.

7. Operation of the bathroom floor heating device When the controller is turned on, the film heating layer is energized, and the surface temperature of the floor heating heating panel gradually and almost uniformly rises. When the temperature of the heating panel for floor heating reaches the set temperature during energization, the controller is activated by a signal from the temperature sensor, the energization to the film heating layer is stopped, and when the temperature decreases, the energization resumes, This repetition keeps the temperature constant.

When a carbon heater is used as the film-like heat generating layer, it is not always necessary to use a temperature sensor, but it is preferable to use a temperature sensor from the viewpoint of more accurate control and safety. If you do not use the temperature sensor, switch on the controller,
When the carbon heater is energized, the surface temperature of the heating panel for floor heating gradually increases almost uniformly. Then, when the temperature of the carbon heater incorporated in the floor heating panel increases during energization, the electric resistance of the carbon heater itself increases, the current decreases, heating is suppressed, and the carbon heater and the floor heating panel are heated. The temperature will be kept constant.

[0059]

As described above, according to the present invention, it is possible to make the floor of a bathroom barrier-free at low cost, and it is excellent in electrical safety, does not break down, and cleans the bathroom. It is possible to provide a bathroom floor heating device that can be easily installed and can be easily installed on site at the time of installation.

[0060]

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing one embodiment of a bathroom floor heating device of the present invention.

FIG. 2 is an explanatory view schematically showing a drain trap portion in another embodiment of the bathroom floor heating device of the present invention.

[Explanation of Signs] 1: Heating panel for floor heating 2: Support frame 3: Drain outlet grating 4: Drain trap 5: Surface fastener 11: Plastic film 12: Aluminum plate 13: Film heating layer (carbon heater) 14: Heat insulation Material 15: Waterproof sheet 16: Second aluminum plate 17: Perimeter angle 18: Notch 21: Aluminum square pipe 22: Adjuster 30: Existing drain 31: Bathroom doorway 32: Existing floor surface 33: Bathroom floor inner wall

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D032 GA03 GA05 3K034 AA02 AA05 AA06 AA08 AA09 AA16 AA34 BA08 BA13 BB08 BB13 BC17 EA16 FA02 FA04 FA05 FA13 FA17 FA39 GA04 GA15 HA04 HA10 JA01 3L072 AA01 4 AA37C AB10B AK01A AT00A AT00B BA04 BA07 BA10A DJ01D GB08 JJ02D JJ06C JL02 JL05

Claims (6)

[Claims] 1. A floor heating device for a bathroom, which is placed on a floor of a bathroom to heat the bathroom, comprising a heating panel for a floor heating having a film-like heating layer therein, and a heating panel for the floor heating. For mounting on a floor surface of a bathroom, a supporting frame having height adjusting means, and a drain grating provided adjacent to the floor heating panel. Floor heating system. 2. The bathroom floor heating device according to claim 1, wherein said floor heating heat generating panel and said support frame are detachably connected to each other via attachment / detachment means. 3. The heating panel for floor heating comprises a plastic film, an aluminum plate, a film-like heating layer, and a heat insulating material laminated and adhered in this order.
Or the floor heating device for bathroom according to 2. 4. The floor heating device for a bathroom according to claim 1, wherein said film-like heat generating layer is a carbon heater. 5. The floor heating device for a bathroom according to claim 2, wherein said attaching / detaching means is a hook-and-loop fastener. 6. The floor heating device for a bathroom according to claim 1, wherein said drain grating has a plurality of through holes formed in a zigzag pattern on an upper surface thereof.