JP2002267193A - Waterproof heating mat for bathroom or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof heating mat for a bathroom or the that like that is safe in terms of electricity and structure. SOLUTION: A heater unit 2 having a waterproof configuration itself is affixed between surface and rear materials 1 and 3 by EVA (thermoplastic resin) using an adhesive in one piece. Also, a heater wire is set to low-voltage specifications and is connected to a low-voltage power supply of 30 V or lower, thus providing a highly safe heating mat for a bathroom.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof heating mat for a bathroom or the like which is installed on a floor of a washing room such as a bathroom to heat the floor.

[0002]

2. Description of the Related Art Conventionally, there is no waterproof heating mat of this kind in a bathroom or the like, and as a method of heating a floor of a washing room such as a bathroom, as shown in FIG. In general, 2a is buried, or a pipe 9 is provided below the floor surface as shown in FIG.

[0003]

However, the above-mentioned conventional structure has a problem that it is necessary to cope with a new construction of a bathroom in advance and the cost is considerably high. In addition, although the method of retrofitting an existing bathroom has an electric carpet and other electric rugs, it has been difficult to use it in a bathroom in terms of safety such as electric shock and waterproofness.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a waterproof heating mat for a bathroom or the like that is safe and comfortable both electrically and structurally.

[0005]

In order to solve the above-mentioned conventional problems, a waterproof heating mat for a bathroom or the like according to the present invention has a waterproof structure in which a heater unit is sandwiched between a surface material and a backing material, and each is bonded to each other. The voltage of the power supply to the heater unit is set to 30 V at the most, so that the heater unit can be installed in a bathroom or the like.

[0006]

According to the first aspect of the present invention, a waterproof structure is provided by sandwiching a heater unit between a front material and a backing material, and each of them is bonded to each other, and a voltage of a power supply to the heater unit is at most 30V. By doing so, the operation can be safely performed since the voltage becomes low.

According to the second aspect of the invention, the waterproofness can be ensured by fixing the bonding of the first aspect with an adhesive.

According to the third aspect of the present invention, the front and back materials of the first aspect are made of a thermoplastic resin obtained by copolymerizing ethylene and vinyl acetate. Heat insulation and strength can be increased.

According to a fourth aspect of the present invention, in particular, the backing according to the first aspect has a thickness greater than that of the surface material, and the bottom surface of the backing is formed in an uneven shape, so that it is thermally insulated from the bathroom floor. Performance can be improved. In addition, the uneven shape also has an effect as a non-slip.

The invention according to claim 5 provides a flat surface by providing a concave portion for accommodating a thermostat on the inner surface of the backing material according to claim 1, and has an effect of positioning during assembly.

According to a sixth aspect of the present invention, there is provided a heater unit according to the first aspect, wherein the heater unit is provided with a covering, a waterproof thermostat for preventing overheating, and a chemical fiber base fabric for supporting the thermostat. Therefore, it has a waterproof structure and is safe even if water enters the heating mat.

In the invention according to claim 7, the base fabric of the heater unit according to claim 1 is made of a material having high permeability so that the adhesive easily permeates. Becomes uniform and strong.

According to an eighth aspect of the present invention, in particular, since the base fabric of the heater unit according to the first aspect has a hole formed so as to avoid the heater wire, the adhesive wraps around, and the adhesive strength between the front material and the backing material is reduced. Become uniform and strong.

According to a ninth aspect of the present invention, the connection between the power cord and the heater wire is performed in the cord opening case provided on the bottom surface side of the main body, and the cord opening case is retracted from the bottom surface of the main body. It becomes damage prevention.

According to a tenth aspect of the present invention, since a groove for accommodating a power cord is provided on the bottom surface of the backing material according to the first aspect, an extra cord can be processed and the bathroom is kept in a clean state. be able to.

[0016] The invention according to claim 11 is a trademark for the main body,
Since the display of the product number and the like is engraved on the side surface of the main body with a branding mark, it does not deteriorate even in a bathroom which is a harsh environment such as water, hot water and soapy water.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is an exploded perspective view showing a main structure of a waterproof heating mat such as a bathroom in one embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a surface material, which is a thermoplastic resin called EVA, which is a copolymer of ethylene and vinyl acetate (hereinafter referred to as EVA), 2 denotes a heater unit,
A heater wire 2a with a coating and a thermostat 2b for preventing overheating, which is a temperature detector subjected to a waterproof treatment, are fixed to a non-woven fabric 2c made of a polyester spunbond method, and the heater unit itself is already in a waterproof structure. Therefore, there is no problem even if the adhesion described later is broken and water is entered. Reference numeral 3 denotes a backing material of EVA, which is thicker than the surface material and has a concave and convex shape on the bottom surface, a concave portion 3a for accommodating a thermostat on the inner surface,
4 has an opening 3b. Here,
Although two thermostats are used to prevent overheating, the use and quantity of thermostats are not limited, and one thermostat may be used for temperature control and the other may be used to prevent overheating. . In addition, if a decorative sheet is attached to the surface of the surface material, the commerciality is further improved. In this case, it is desirable that the decorative sheet is subjected to embossing for slip prevention.

The surface material 1, the heater unit 2, the backing material 3, and the cord case A4 having the above-described structure are integrally bonded with an adhesive. At this time, the heater wire is put out beforehand from the side surface of the cord opening case A4 to the bottom surface side,
After the adhesive bonding, it is connected to the power cord 6 and the connection is waterproofed, and then the lid is closed with the cord opening case B5. FIG.
Is a sectional view of the main body after bonding. Since the heater wire 2a has a small diameter of about 0.6 mm for low voltage, it is absorbed by the backing material 3 of EVA and does not come out on the surface. Also, the heater unit 2
Is smaller than the front material 1 and the backing material 3, so that the four sides of the main body are firmly fixed to each other by the EVA.

As described above, in this embodiment, since it is integrally adhered with an adhesive, it has a waterproof structure, and is connected and operated to a low-voltage power supply of at most 30 V, so that it is safe to use in a bathroom. In addition, since EVA of independent foaming is used, it is excellent in durability, waterproofness, and heat insulation. Further, the unevenness is provided on the bottom surface, so that the heat insulating property with the floor of the washing place is improved and the slip is prevented.

FIG. 3 is an enlarged view of the heater unit 2. The base cloth 2c is made of a material having good transparency so that the adhesive is easily absorbed.
For example, the nonwoven fabric is formed by a polyester spunbond method, and the basis weight is coarse. Further, a hole 2d is provided so as to avoid the heater wire 2a. By doing so, the adhesive wraps around and the adhesive strength can be improved.

FIG. 4 is a cross-sectional view of the vicinity of the cord opening case. The state in which the lid is attached to the cord opening case A4 with the cord opening case B5 is retracted from the convex portion of the backing material 3, and by doing so, When placed on the floor of a washing room such as tiles,
The cord opening case B5 is prevented from being scratched, and is also prevented from slipping.

FIG. 5 is a plan view of the bottom surface of the main body.
The cord storage groove 7 is provided with a width and a depth at which the power cord 6 can be fixed aside. As a result, the power cord 6
If it is too long to get in the way, it can be adjusted through the cord storage groove 7 so that the bathroom can be kept clean. Further, since the cord storage groove 7 also serves as a water passage, it also prevents slippage.

FIG. 6 is a side view of the main body, in which the trademark and the product number are engraved and displayed by branding. As a result, stable display is possible even when used in a harsh environment such as a bathroom.

[0026]

As described above, according to the present invention, EVA
The surface material and the EVA backing material with a concave and convex bottom surface, and the heater unit of the waterproof structure are integrally bonded with an adhesive,
Since a power supply voltage of at most 30 V is used, a heating mat having good heat insulation, high waterproofness and high safety can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a waterproof heating mat for a bathroom or the like according to an embodiment of the present invention.

FIG. 2 is a sectional view of the waterproof heating mat.

FIG. 3 is an enlarged view of a heater unit of the waterproof heating mat.

FIG. 4 is a cross-sectional view around a cord opening case of the waterproofing heating mat.

FIG. 5 is a plan view of the bottom surface of the main body of the waterproof heating mat.

FIG. 6 is a side view of the main body of the waterproof heating mat.

FIG. 7 is a cross-sectional view of a floor of a washing room in a conventional bathroom.

FIG. 8 is a sectional view of the floor of another conventional bathroom.

[Description of Signs] 1 Front material 2 Heater unit 2a Heater wire 2b Thermostat for preventing overheating (temperature detector) 2c Base cloth 2d Hole 3 Backing material 3a Depression 4 Cord mouth case A (cord mouth case) 5 Cord mouth case B (Cord mouth case) 6 Power cord 7 Cord storage groove (groove)

Claims (11)

[Claims] 1. A waterproof heating mat for a bathroom or the like, in which a heater unit is sandwiched between a front material and a backing material and each of them is bonded to each other to form a waterproof structure, and a voltage of a power supply to the heater unit is 30V at the highest. 2. The waterproof heating mat for a bathroom or the like according to claim 1, wherein the front material, the back material, and the heater unit are each fixed with an adhesive. 3. The waterproof heating mat for a bathroom or the like according to claim 1, wherein the front material and the back material are thermoplastic resins obtained by copolymerizing ethylene and vinyl acetate. 4. The waterproofing of a bathroom or the like according to any one of claims 1 to 3, wherein the backing material has a thickness greater than that of the surface material, and the bottom surface of the backing material has an uneven shape to provide heat insulation. Heating mat. 5. The waterproof heating mat for a bathroom or the like according to claim 1, wherein a concave portion for accommodating the temperature detector is provided on an inner surface of the backing material. 6. The heater unit according to claim 1, wherein the heater unit comprises a coated heater wire, a waterproof thermostat for preventing overheating, and a chemical fiber base fabric for supporting the thermostat.
The waterproof heating mat for a bathroom or the like according to any one of the above. 7. The waterproof heating mat for a bathroom or the like according to claim 6, wherein the base fabric of the heater unit is made of a material having good permeability so that the adhesive easily permeates. 8. The waterproof heating mat for a bathroom or the like according to claim 6, wherein the base fabric of the heater unit is provided with a hole avoiding the heater wire. 9. The power supply cord and the heater wire are connected in a cord opening case provided on the bottom surface side of the main body, and the cord opening case is retracted from the bottom surface of the main body. The waterproof heating mat for a bathroom or the like according to claim 1. 10. The waterproof heating mat for a bathroom or the like according to claim 1, wherein a groove for accommodating a power cord is provided on a bottom surface of the backing material. 11. The display of a trademark, a product number or the like on a main body is engraved on a side surface of the main body with a branding mark.
The waterproof heating mat for a bathroom or the like according to any one of the above.