JPH08333783A - Bathroom forming unit - Google Patents

Abstract

PURPOSE: To provide a bathroom forming unit of fine quality with heater wire integrated by sheet molding compound forming. CONSTITUTION: First sheet material 2 forming a surface layer, coarse second sheet material 3, a heater unit 4 with heater wire 7 fixed to core material, and coarse third sheet material 5 are placed one on top of another in this order and embedded in a sheet molding compound 6 to form a bathroom forming unit. The first sheet material 2 to be the surface layer is efficiently integrated with the heater unit 4 through the coarse second sheet material 3 so as to suppress the generation of fins and bulges. The heater unit 4 is suppressed in elongation and deformation by the coarse second and third sheet material 3, 5 so as to provide a product of fine quality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom molding unit having a heater wire embedded therein.

[0002]

2. Description of the Related Art In recent years, heater wires have been added to bathroom washing areas to add a heating function. These heater wires are manufactured by hand lay-up molding or resin injection molding (RTM). It was integrated. However, these molding methods have problems in that the productivity is low and the cost is high, and that the heater wire is integrated on the back surface of the washing room or the like, so that the thermal efficiency is low and the electricity cost is high.

Therefore, the inventor of the present invention considered embedding the heater wire by embedding it by a sheet molding compound (hereinafter referred to as SMC) molding which is often used for molding a bathroom washing room or a bathtub. Since this has high productivity, it can be provided at a low cost, and since the heater wire can be embedded in the molded body and positioned near the surface, it has the advantages of good thermal efficiency and low electricity bill.

[0004]

However, the above-mentioned SM
When the heater wires are embedded and integrated by C molding, if these are molded at once, sink marks and blisters may occur on the surface of the molded body. In addition, the heater wire may be stretched or deformed. That is, it was difficult to mold a bathroom molding unit by SMC molding with good quality.

The present invention solves the above problems, and a first object thereof is to provide a bathroom molding unit of good quality SMC molding, and a second object thereof is to further improve the quality thereof. The third purpose is to further save power.

[0006]

In order to achieve the above first object, the present invention provides a first sheet material for forming a surface layer,
The second sheet material having coarse mesh, the heater unit having the heater wire fixed to the interlining, and the third sheet material having coarse mesh are sequentially stacked and integrally formed into a sheet molding compound.

Further, in order to achieve the third object, the heater unit is configured so that the central portion and the portions other than the central portion have different power densities.

[0008]

According to the first structure of the present invention, the first sheet material serving as the surface layer is efficiently integrated with the heater unit through the second sheet material having coarse mesh, and the generation of fins and blisters is suppressed. At the same time, the heater unit is prevented from being stretched or deformed by the coarse second and third sheet materials.

The second structure prevents the heater unit and the second and third sheet materials from protruding from the outer periphery of the first sheet material serving as the surface layer.

Further, according to the third structure, the heater unit can suppress the power consumption of either the central portion or the other portion depending on the behavior pattern of the user, so that the power saving can be achieved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing a manufacturing state of a molding unit. A first sheet material 2 for forming a surface layer, a second sheet material 3, a heater unit 4, and a third sheet material 5 are placed in this order on the lower die 1 and the SMC 6 is placed thereon, and the upper die is placed. Unload and mold these integrally. The above-mentioned members placed on the lower mold 1 may be piled up at other places, or may be piled on the lower mold 1 in order. The second sheet material 3 and the third sheet material 5 are sheet materials using coarse glass or polyester as a base material. The second sheet material 3, the heater unit 4, and the third sheet material 5 have the same or slightly smaller outer dimensions as the first sheet material 2, and form the surface layer of the molding unit during molding. This prevents other sheet patterns from protruding from the sheet 2 of the above. Further, the first sheet material 2 is sandwiched between the lower die, the second sheet material 3 and the third sheet material 5 so that the first sheet material 2 is not displaced during molding.

FIG. 2 is a front view of the heater-equipped molding unit. As shown in FIG. 1, by inserting the second sheet material 3 between the first sheet material 2 and the heater unit 4, sink marks and blisters due to the heater wire 7 are generated on the molding unit surface 9 of the molding unit 8 in FIG. Absent. That is, the second sheet material 3 absorbs the unevenness due to the heater wire 7 and flattens the surface to improve the spread of the SMC 6, thereby suppressing sink marks and blisters.

FIG. 3 is a perspective view of the heater unit. The heater unit 4 is formed by fixing the heater wire 7 to the interlining 10. The heater wire 7 is sewn and fixed to the interlining 10 made of polyester, glass fiber or the like as the base material with the thread 11. By sandwiching the heater unit 4 with the coarse second sheet material 3 and the third sheet material 5 as shown in FIG. , Especially the extension of the heater wire,
Effective in preventing deformation.

FIG. 4 shows the heater unit embedded in the molding unit. The lower part of the molding unit 8 is a washing room 12, and the upper part is a bath 13. A heater unit 4 surrounded by diagonal lines is buried in the washing place 12. Heater unit 4
Is buried inward about 100 to 200 mm, which is slightly inside from the outer periphery of the washing area 12. The first step for a person to enter the bathroom is because the area is slightly inside from the outer circumference of the washing room 12,
It is also adapted to the range in which a person acts in the bathroom.

In the heater unit 4, the central portion 14 and the outer peripheral portion 15 have different power densities by changing the heater wire arrangement density or arranging two lines of heater wires.
This is to reduce the power consumption and the running cost, and there are two methods described below. The first method is to increase the power density of the central portion 14 and decrease the power density of the outer peripheral portion 15. Since the central portion 14 is a place where people often ride, such as sitting to wash the body or standing to take a shower, a high power density is used to increase the temperature rise value and effectively perform heating in the washroom. . The second method is to make the outer peripheral portion 15 have a high power density and
Is to have a low power density. In particular, the power density is set to a high level by focusing on the range of people's first steps when entering the bathroom, and the temperature rise value is increased to eliminate the "comfort" discomfort of the first step in the washing room in winter.

[0016]

As described above, in the bathroom molding unit of the present invention, the first sheet material which becomes the surface layer is efficiently integrated with the heater unit through the second sheet material having coarse mesh so as to prevent fins and blisters. Generation of the heater unit is suppressed, and elongation and deformation of the heater unit are suppressed by the coarse second and third sheet materials, so that the heater unit having good quality can be provided.

If the second sheet material, the heater unit, and the third sheet material are set to have the same or slightly smaller outer dimensions than the first sheet material, the heater unit, the second sheet material, and the third sheet material. The material does not protrude from the outer periphery of the first sheet material serving as the surface layer, and the quality is further improved.

Further, in the structure in which the central portion of the heater unit and the portion other than the central portion have different power densities, either the central portion or the other portion depending on the action pattern of the user is formed. Power consumption can be suppressed and power saving can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a manufacturing state of a bathroom molding unit of the present invention.

[Figure 2] Front view of the bathroom molding unit

FIG. 3 is a perspective view of a heater unit used in the bathroom molding unit.

FIG. 4 is a plan view of the bathroom molding unit.

[Explanation of symbols]

 2 1st sheet material 3 2nd sheet material 4 heater unit 5 3rd sheet material 6 SMC 7 heater wire 8 molding unit 14 heater unit central part 15 heater unit outer peripheral part

Claims (3)

[Claims] 1. A first sheet material forming a surface layer, a second sheet material having fine mesh, a heater unit having a heater wire fixed to an interlining, and a third sheet material having coarse mesh. A bathroom molding unit that is formed by stacking sheet molding compounds into one piece. 2. The bathroom molding unit according to claim 1, wherein the second sheet material, the heater unit and the third sheet material are set to have the same or slightly smaller outer dimensions than the first sheet material. 3. The molding unit for a bathroom according to claim 1, wherein the heater unit has different power densities in a central portion and portions other than the central portion.