JP2001135458A - Sit-down-type heating appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sit-down-type heating appliance which can prevent radiation loss in the unused condition and can achieve efficient heating and comfortableness to sit on even for a long time. SOLUTION: This sit-down-type heating appliance comprises a base material 23 made of foamed resin composed of, for example, continuous foams, exothermic bodies 27 arranged in the base material 23, a heat insulator 29 made of foamed resin composed of, for example, independent foams and arranged on the bottom face of the exothermic bodies 27, temperature detectors 28, and a controller 31 with a temperature-control part which controls the flows of electricity of the exothermic bodies according to signals from the temperature detectors 28. When a user sits on the appliance, heat generation quantity of the exothermic bodies 27 is increased, and it is reduced when the user gets off the appliance. In this way, this appliance can realize energy saving by heat- insulation effect and compressive deformability of the base material and can achieve the improved comfortableness to sit on and efficient heating by concentrating heat on the sit-down portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a configuration of a seating and warming device such as a heating toilet seat.

[0002]

2. Description of the Related Art Conventionally, this type of seating and warming device has a structure as shown in FIG. That is, 1 is a toilet seat installed on the toilet 2, and 3 is a toilet lid. A toilet seat heater 4 composed of a cord-shaped tubing heater is incorporated inside the toilet seat 1, and the toilet seat 1 is heated by energizing the toilet seat heater 4 to obtain a warm feeling when sitting. In addition, many types of heating toilet seats, which are seat heating devices of this type, have a local cleaning function added thereto. Reference numeral 5 denotes a cleaning nozzle which is a cleaning water discharging device.
The hot water is discharged from the washing nozzle 5 to the human body by a pump (not shown) in the inside for washing. The washing nozzle 5 constitutes a washing device together with a pump (not shown) provided in the case 6.

[0003]

However, in the above-mentioned conventional configuration, the toilet seat heater is energized to maintain a predetermined temperature by energizing the toilet seat heater regardless of day and night when the user is not in use, so that the toilet seat is not cold when the user sits on the toilet seat. As a result, there is a loss of heat from the toilet seat, and the power consumption of toilet seat heating, which accounts for a large portion of standby power for keeping the toilet seat warm even when not in use, is large, and there is a problem that the electricity cost increases. Was.

[0004] In order to solve this problem, there is another conventional heating toilet seat as shown in FIG. 7 (for example, described in Japanese Utility Model Laid-Open No. 194897/1984).

As shown in FIG. 8, in this heating toilet seat, the sectional shape of the toilet seat body 7 is bulged upward, and the upper surface is gently inclined toward the inner peripheral edge and the outer peripheral edge. It has a shape, and a synthetic resin or rubber contact piece 8 is provided at a required interval on the back surface.

On the upper surface of the toilet seat body 7, a flexible surface heating element 9 having a conductive material covered on both sides by insulating sheets is attached to the toilet seat body 7 or is exposed on the surface of the toilet seat body 7. It was provided by being buried. This surface heating element 9 was formed by forming printed wiring in a predetermined pattern and attaching a synthetic resin sheet to the surface.

Reference numeral 10 denotes an insulating resin layer made of a synthetic resin such as polyamide or polyester, which is attached to the toilet seat body 7 so as to cover the surface heating element 9 provided on the upper surface of the toilet seat body 7. Since the insulating resin layer 10 is formed in a thin film shape, by energizing the surface heating element 9 provided on the upper surface of the toilet seat body 7, the main part of the human body can be immediately heated to an appropriate temperature without heating the toilet seat body 7. Therefore, there is no need to heat the toilet seat at all times by constantly energizing the heater, which is very power saving.

However, in other conventional heating toilet seats, heat is also transmitted to the toilet seat body 7, so that heat dissipation from the toilet seat body 7 occurs during energization of the surface heating element 9 during use. In order for the heat generating portion to spread to every corner so that the inner peripheral edge and the outer peripheral edge of the inclined toilet seat body 7 are not cooled, the surface heating element 9 is required.
Is required to be formed into a three-dimensional curved surface. Even if the three-dimensional curved surface of the surface heating element 9 can be formed, there is still a problem with respect to power saving, such as loss of heat generated in a portion not touched by a human body.

In addition, the toilet time tends to be long especially in the elderly, and in both of the conventional seating and warming devices, the seating surface of the toilet seat does not have a compressive deformation property such as rubber elasticity, so that the ischial bone is used. There was a problem in that local force acts on the human body at the nodules and the like, causing pain and fatigue when sitting for a long time.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a base material having heat insulating properties and compressive deformation properties,
A heating element, a heat insulating material, a temperature detector, and a controller having a temperature control unit for controlling energization of the heating element by a signal from the temperature detector, and a heating element when a user sits on the upper surface of the main body. Is increased so that when the user gets off the main body, the calorific value of the heating element is reduced.

According to the above invention, since the heat generating element is covered with the heat insulating material, a heat loss is prevented, so that power is saved.
In addition, since it has compressive deformability, the upper surface side of the heating element is greatly deformed by the user's own weight during use, and the heating element and the human body, which is the user, come closer to each other to increase the heating effect. And
Efficient warming can be achieved by the action of collecting heat to the seating part and control to increase the electric conduction rate, and the loss of heat flow from the heating element to the lower surface due to heat transfer from the base material compressed by the user's own weight is also prevented. it can. Furthermore, since it is composed of an elastic base material, it is possible to provide a seating warming device that is comfortable to sit on and that does not feel tired or feel pain even when sitting for a long time.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has the following arrangement to solve the above-mentioned problems. That is, the configuration of claim 1 has a heat insulating property and a compressive deformation property, for example, a base material formed of a foamed resin composed of open cells, a heating element sandwiched between the base materials, A heat insulating material formed of a foamed resin made of closed cells and provided on a lower surface side of the heat generating element, a main body including at least the heat generating element, the base material, and the heat insulating material, a temperature detector, and the temperature detector And a controller having a temperature control unit for controlling the energization of the heating element according to a signal from the main body. When a user sits on the upper surface of the main body, the heating value of the heating element is increased. The amount is reduced.

Since the heat generating element is covered with a heat insulating material, heat loss is prevented, so that power is saved. In addition, the one that has compression deformation due to the open-cell foam resin can have greater compressive deformation than the closed-cell one, so when used, the upper surface side is more deformed by the user's own weight than the heating element, and The warming effect is enhanced by approaching the user's body. In addition, efficient heat collection can be realized by the action of collecting heat in the seating section and the control to increase the electrical conductivity, and the loss of heat flow from the heating element to the lower surface due to heat transfer from the body compressed by the user's own weight is also reduced. Can be prevented. Furthermore, since it is made of an elastic base material, it is comfortable to sit on and can be prevented from feeling tired and painful even when sitting for a long time.

According to a second aspect of the present invention, the temperature detector is arranged close to the heating element. Then, the temperature of the main body can be controlled more quickly, and control by detecting the presence or absence of a human body is also possible.

According to a third aspect of the present invention, a cord-like electric heater is used as a heating element, and a heat conductive sheet is disposed in close contact with the cord-like electric heater. Then, when the cord-shaped electric heater is arranged in a predetermined pattern in a planar shape and is sandwiched between base materials, it is possible to fix the heat conductive sheet by bonding or welding, so that workability is improved. In other words, it is possible to reduce the cost of manufacturing the seating warming device. In addition, since the cord-shaped electric heater and the heat conductive sheet are covered with a heat insulating material, heat loss is prevented, so that power is saved.

According to a fourth aspect of the present invention, a thin skin layer made of a foamed resin made of closed cells or a non-foamed material is provided on the seating surface side of the base material. In addition, it is possible to provide a seating and warming device having a clean and sanitary seating surface while preventing water absorption and dirt from entering and sticking to the surface, and also prevent electric shock and electric leakage.

According to a fifth aspect of the present invention, the base material is formed of a foamed resin composed of open cells, and the seating surface side of the base material is melted by hot compression molding and the air bubbles are crushed to form a skin layer. . Then, it is possible to prevent water absorption and dirt from entering and sticking from the surface, and to form a clean and hygienic seating surface in a simple process without increasing the number of parts.

Further, according to a sixth aspect of the present invention, there is provided a room temperature detecting body for detecting a room temperature, and in a stand-by state in which the vehicle is not seated, if the room temperature is higher than a predetermined temperature based on a signal from the room temperature detecting body, the power is not supplied. It is provided with a controller having a control unit. If the room temperature is equal to or higher than the predetermined temperature during standby without being seated, power is not supplied, so that power consumption during standby is reduced and power is saved.

Further, according to a seventh aspect of the invention, there is provided a selection means for selecting a power saving level, and the controller controls the energization of the heating element in accordance with the selection of the selection means. And
By controlling the energization to the heating element according to the selection of the selection means and changing the heat generation amount, the seating surface temperature at the time of standby together with the power saving level changes. A power saving level can be selected, and convenience can be increased.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is a cross-sectional configuration diagram of a seating and warming device according to Embodiment 1 of the present invention, and FIG. 2 is Embodiment 1 of the present invention.
It is principal part sectional drawing of the seating warming tool of FIG. As shown in FIGS. 1 and 2, a base material 23 made of open-cell soft foamed resin such as polyurethane is provided between a thin skin layer 21 which is a seating surface and is made of a closed-cell foamed resin and a base 22 made of synthetic resin. Is provided. Then, on both sides or one side of the aluminum sheet 24 having a thickness of 5 μm to 100 μm, polyethylene,
Or a heat conductive sheet 26 laminated with a reinforcing sheet 25 of polyester, polypropylene, or the like,
A cord-shaped electric heater 27 as a heating element and a linear temperature detector 28 are arranged in a predetermined pattern in a plane and are thermally welded to the reinforcing sheet 25, and are provided inside the base material 23.
Further, polyethylene or E is provided on the lower surface side of the heat conductive sheet 26.
A heat insulating material 29 made of a soft foam resin of closed cells such as VA is disposed between the heat insulating material 29 and the base 22 to form a main body 30. Reference numeral 31 denotes a controller having a temperature controller 32 for controlling the temperature of the main body 30, which controls the duty ratio of the cord-shaped electric heater 27 based on a signal from the temperature detector 28.

In the above structure, the cord-like electric heater 2
7 and the temperature detecting body 28 are wired in a predetermined pattern in a planar pattern before being sandwiched by the base material 23 in the manufacturing process of the main body 30, and are then fixed to the heat conductive sheet 26 by heat welding. The cord-shaped electric heater 27 integrated with the sheet 26 is set in a resin foaming mold, and foaming molding of resin such as urethane is performed. As described above, it is possible to perform pattern wiring on the heat conductive sheet 26 and fix it, so that the cord-shaped electric heater 27 and the temperature detector 28
The workability is improved as compared with the case where the distance is set apart from the heat conductive sheet 26, and the cost can be reduced at the time of manufacturing the seating / heating device. Here, the manufacturing method by fixing by heat welding has been described.
It is obvious that the same effect can be obtained by fixing with a pressure-sensitive adhesive formed on the surface of the sheet with an adhesive sheet, fixing with an adhesive, fixing by sewing, or the like.

Next, the operation will be described. FIG. 3 is a cross-sectional view of a main part when the sitting and warming device according to the first embodiment of the present invention is used.
At the time of warming, when the user sits on the upper surface of the main body, the base material 23, which is a soft foamed resin, is compressed and deformed by the weight of the user. Since the base material 23 is an open cell, the air bubble is easily crushed, and the compressive deformability is generally larger than that of the closed-cell foamed resin. It comes close to the human body together with the heat conductive sheet 26. Therefore, the user can directly feel the heat from the cord-shaped electric heater 27 to the human body immediately after sitting on the seat, and even if the surface of the seating surface is slightly low, the cord-shaped electric heater 27 having a relatively high temperature can be cooled. You can heat without feeling. In addition, the fact that the user puts on the main body and heats up means that the heat of the main body transfers to the user. According to the above-described embodiment, not only the seating surface but also heat of a wide range of the main body extending around the seating surface is transferred to the user via the heat conductive sheet 26.
The heat of the main body is lowered by transferring a large amount of heat of the main body to the user. When the temperature of the main body decreases, the temperature detector 2
Numeral 8 detects a decrease in temperature and controls via a temperature control unit 32 to increase the duty ratio of the cord-shaped electric heater 27.

Therefore, in use, efficient warming can be realized by the effect of approach between the human body and the cord-shaped electric heater 27, the function of collecting heat in the seating portion, and the control for increasing the electricity supply rate. Also,
Since the seating portion is deformed by the user's own weight due to the compressive deformability of the base material 23, the load is dispersed and received over a wide area, so that a local force is prevented from acting on the ischial tubercle and the like. It is comfortable to sit on and can prevent tiredness and pain from sitting for a long time. In addition, even if a compressive load is applied to the heat insulating material 29 by the user's own weight, the closed cell foamed resin has a small degree of compressive deformation and can maintain heat insulation, so that the heat flow flows from the cord-shaped electric heater 27 through the heat conductive sheet 26 to the lower surface. The loss of heat radiated to the heat can be prevented. Further, the cushion on the lower surface side is hardened, so that the sitting comfort is improved.

When the user gets off the top of the main body,
Since the base member 23 is restored to its initial shape, the heat insulation performance is also recovered and increased, and the cord-shaped electric heater 27, the temperature detector 28, and the heat conductive sheet 26 are configured to be covered with the heat insulating material whose thickness has been recovered. The heat dissipation loss is greatly reduced, and the power consumption can be reduced. In addition, it is possible to prevent the heat conductive sheet 26 from functioning as a heat radiating plate when not in use, thereby preventing unnecessary energy consumption. In addition, heat obtained by increasing the duty ratio during use is supplied to the user and stored in the main body at the same time. When the user gets off the main body, the heat stored in the main body suppresses the duty ratio of the heating element 24 to a value equal to or lower than the duty ratio before use, and a power saving effect can be expected.

FIG. 4 is a diagram showing a change in the duty ratio when the sitting and warming device according to the first embodiment of the present invention is used and not used. The means for controlling the amount of heat generated by the cord-shaped electric heater 27, which is a heating element, is not limited to the control of the duty ratio, and may be another means. Further, in this embodiment, the cord-shaped electric heater 27 and the heat conductive sheet 26 are described as being in close contact with each other, but the power saving effect can be obtained even if they are separated by a predetermined distance. The positional relationship between the cord-shaped electric heater 27 and the heat conductive sheet 26 is such that the heat conductive sheet 26 is located below, but the heat conductive sheet 26 may be located above, and the same effect can be obtained. Is clear.

Further, since the thin skin layer 21 made of a closed-cell foamed resin is provided on the seating surface side of the base material 23, the wear resistance and the antifouling property are improved as compared with a continuous foamed resin such as soft urethane foam. In addition, it is possible to prevent water absorption from the surface and infiltration / fixation of dirt. In addition, effects such as prevention of bacterial growth and prevention of mites can be expected, and a seating and warming device having a clean and sanitary seating surface can be provided, and electric shock and electric leakage can be prevented.

In this case, the foamed resin sheet of independent foaming is used as the skin layer 21 on the seating surface side.
The same effect can be obtained by providing a thin skin layer 21 with a resin sheet of polyethylene, polyester, polyurethane, or the like up to 00 μm (not shown). In this case, the wear resistance and the antifouling property are improved, and the thin resin sheet does not need to feel a cool feeling even at a relatively low temperature. It is possible to prevent cold sensation only by slightly warming it up, and it is expected that both cold sensation prevention and power saving can be achieved even in cold weather.

(Embodiment 2) FIG. 5 is a sectional view of a seating and warming device according to Embodiment 2 of the present invention, and FIG. 6 is Embodiment 2 of the present invention.
It is principal part sectional drawing of the seating warming tool of FIG. As shown in FIGS. 5 and 6, the seating warming device has two functions of a heat generation function and a temperature detection function.
The skin layer 21 on the seating surface side of the base material 23 is formed by melting the foamed resin base material 23 by hot compression molding and crushing bubbles. Things. The controller 31 includes a temperature controller 32 for controlling the temperature of the main body 30 and a one-wire heater wire 33.
It has an energization control unit 34 for controlling whether or not the power is supplied to the power supply, a determining unit 35 for determining the presence or absence of a human body, and the like. The one-wire heater wire 33 is provided by a signal from the temperature detector of the one-wire heater wire itself. The one-wire heater wire 3 is controlled by a signal from the room temperature detector 36 for detecting the room temperature and the room temperature detector 36 for detecting the room temperature and the judging unit 35.
3 to control whether power can be supplied to the power supply 3.

Next, the operation will be described. By integrating the heat generation function and the temperature detection function, by directly detecting the temperature of the heating
It is possible to control the body temperature more quickly. And, as the detection capability increases, it goes beyond simply controlling the duty ratio corresponding to the temperature change by the temperature detection function. It is possible to control, or to energize or de-energize. When the present invention is applied to a heating toilet seat device having a washing function, the operation of the washing device can be controlled by utilizing the action of detecting the presence or absence of a human body.

As described above, when the stand-by unit 35 detects and determines that the human body is not on the sitting and warming device by the one-wire heater wire 33, the user does not feel the cooling sensation determined from the material of the skin layer 21. When the room temperature is equal to or higher than the predetermined temperature (15 ° C.) with respect to the predetermined temperature (15 ° C.) based on the signal of the room temperature detector 36, the controller 31 supplies power to the heating element via the power supply control unit 34. To stop. Therefore, when the room temperature is equal to or higher than the predetermined temperature during standby without being seated, power is not supplied, so that power consumption during standby is reduced and power is saved. However, the temperature at which the user does not feel the cooling sensation on the seating surface may be due to age differences, gender differences, other individual differences, or the temperature at which the same user did not feel the cold sensation in winter (for example, 1).
(5 ° C.) feels cold in the summer, so that there is a difference in the time sensation due to adaptation to the climate, and the remote control 37 gives an instruction to change the predetermined temperature.

A power saving mode is selected on the remote controller 37,
A power saving switch 38 which is a power saving setting means to be set, and a temperature controller 39 which is a selection means for selecting a power saving level.
Is provided, and information is transmitted to the controller 31 via a wireless signal. The user selects the power saving mode according to his / her preference and operates the power saving switch 38, and then the temperature controller 39.
Is operated to change the value to a predetermined value (for example, 20 ° C.), the level display 4 provided for displaying the current power saving level is displayed.
The display of 0 also changes.

In the standby state when the seat is not seated, the controller 31 stops the power supply to the heating element via the power supply control unit 34 when the room temperature is equal to or higher than the predetermined temperature (20 ° C.). When the temperature is lower than 20 ° C.), the energization rate to the heating element is controlled via the temperature control unit 32 to control the skin layer 34 to a predetermined temperature (20 ° C.), and the energization to the heating element is provided to the user. Energizing lamp 4 provided for notification
1 is lit while the power is on. Even when it is difficult for the user to intuitively perceive the setting during standby without sitting, the user can set his / her favorite setting based on the level display 40 indicating the power saving level when sitting, the energizing lamp 41, and the cooling sensation of the seating surface. Can be determined. In this manner, the temperature control unit 39, which is a power-saving level selection unit, changes the temperature of the seating surface at the time of standby together with the power-saving level. Can be selected, and the convenience can be increased.

Further, the base material 2 made of an open-cell foamed resin
Since the seating surface side of 3 is heated and compressed in a mold during the manufacturing process, the foamed resin on the surface is slightly melted, bubbles are crushed and molded, and a thin non-foamed skin layer is provided.
The abrasion resistance and antifouling property are improved, and water absorption from the surface and infiltration and fixation of dirt can be prevented. In addition, effects such as prevention of bacterial growth and mite prevention can be expected, and a seating / heating device having a clean and sanitary seating surface can be provided, and electric shock and electric leakage can be prevented.

In this embodiment, the one-wire heater wire 29 having the two functions of the heat generation function and the temperature detection function has been described. However, the heating element and the temperature detection body may be arranged adjacent to each other. Good.

In this embodiment, the temperature control section 39 for changing the set temperature during standby is used as the selecting means for selecting the power saving level. However, the power saving rate is set by setting the duty ratio to the heating element. The one that selects the level or another one may be used.

[0037]

As described above, the seating and warming device of the present invention has the following effects.

That is, according to the first aspect of the present invention,
Since the heat generating element is covered with a heat insulating material, heat radiation loss is prevented, thereby saving power. In addition, since the base material has compressive deformation properties, the upper surface side of the heating element is more greatly deformed by the user's own weight during use, and the heating element and the user's human body are close to each other, so that a warming effect is enhanced. In addition, efficient heat collection can be realized by the action of collecting heat in the seating section and the control to increase the electrical conductivity, and the heat flow from the main body compressed by the user's own weight causes the heat flow from the heating element to the lower surface via the heat conductive sheet. Heat loss can also be prevented. Furthermore, since it is made of an elastic base material, it is comfortable to sit on and can be prevented from feeling tired and painful even when sitting for a long time.

According to the second aspect of the present invention, the temperature of the main body can be more quickly controlled, and the control by detecting the presence or absence of a human body can be performed.

According to the third aspect of the present invention, when the cord-shaped electric heater is arranged in a predetermined pattern in a plane and is sandwiched between base materials, it is fixed to the heat conductive sheet by bonding or welding. As a result, the workability is improved, and the cost for manufacturing the seating / heating device can be reduced.

According to the fourth aspect of the present invention, it is possible to provide a seating and warming device having a clean and sanitary seating surface by preventing water absorption and dirt from entering and sticking from the surface, and to provide electric shock and electric leakage. Can be prevented.

According to the fifth aspect of the present invention, it is possible to prevent water absorption and dirt from entering and sticking from the surface, and to form a clean and hygienic seating surface by a simple process without increasing the number of parts. Can be.

According to the sixth aspect of the present invention, when the room temperature is equal to or higher than the predetermined temperature at the time of waiting without being seated,
Since power is not supplied, power consumption during standby is reduced, and power is saved.

According to the seventh aspect of the present invention, the power supply to the heating element is controlled in accordance with the selection of the selection means to change the amount of heat generated, thereby changing the power saving level and the seating surface temperature during standby. Therefore, the user can select the power saving level according to the preference of the feeling of warmth when sitting down, and the convenience can be increased.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration of a seating warming device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the heating device.

FIG. 3 is a cross-sectional view illustrating the use of the warming device.

FIG. 4 is a characteristic diagram showing a change in an electrical conductivity when the warming device is used and when it is not used.

FIG. 5 is a cross-sectional view illustrating a configuration of a seating warming device according to a second embodiment of the present invention.

FIG. 6 is a sectional view of a main part of a seating and warming device according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing the configuration of a conventional seat warming device.

FIG. 8 is a cross-sectional view showing the configuration of another conventional seat warming device.

[Explanation of symbols]

 Reference Signs List 21 skin layer 23 base material 26 heat conductive sheet 27 cord-shaped electric heater (heating element) 28 temperature detector 29 heat insulating material 30 main body 31 controller 32 temperature controller 33 one-wire heater wire (heating element / temperature detector) 34 Energization controller 36 Room temperature detector 39 Temperature controller (selection means)

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2D037 AA13 AD03 AD09 3K058 AA02 AA61 AA81 AA91 BA01 CA12 CA23 CA26 CA37 CA46 CA52 CB02 CB19 CB35 CC05 CC09 CE02 CE12 CE16 CE19

Claims (7)

[Claims] 1. A base material having heat insulating properties and compressive deformation properties, a heating element for applying heat to the base material, and a heat insulating material provided on the lower surface side of the heat conductive sheet having heat insulating properties. A body including the heating element, the base material, the heat conductive sheet, and the heat insulating material, a temperature detector, and a controller having a temperature controller configured to control energization of the heating element by a signal from the temperature detector. And a heating device for heating the heating element when a user sits on the upper surface of the main body, and reduces the heating value of the heating element when the user gets off the main body. 2. The sitting and warming device according to claim 1, wherein the temperature detector is arranged close to the heating element. 3. The seating and heating device according to claim 1, wherein a cord-shaped electric heater is used as the heating element, and a heat conductive sheet is arranged in close contact with the cord-shaped electric heater. 4. The seating and warming device according to claim 1, further comprising a thin skin layer made of a foamed resin made of closed cells or a non-foamed material, provided on the seating surface side of the base material. 5. The skin layer according to claim 1, wherein the base material is formed of a foamed resin composed of open cells, and the seating surface side of the base material is melted by hot compression molding and the air bubbles are crushed to form a skin layer. The seating heater described in the item. 6. A controller provided with a room temperature detector for detecting room temperature, and having an energization control unit that does not energize when a room temperature is equal to or higher than a predetermined temperature based on a signal from the room temperature detector when the vehicle is not seated and on standby. 6. The method according to claim 1, further comprising:
The seating heater described in the item. 7. A seating warming tool according to claim 1, further comprising a selection means for selecting a power saving level, wherein the controller controls energization of the heating element according to the selection of the selection means. .