JPS634916A - Manufacture of floor pan - Google Patents

Abstract

PURPOSE:To prevent a flat plate with patterns from generating cracks or recess and projection, by a method wherein a lining plate is laid on the recesses and projections of a floor pan forming mold and the flat plate with patterns is put thereon. CONSTITUTION:A lining plate 3 is laid on the recesses and projections 1 of a floor pan forming mold 2, provided with the recesses and projections 1 for forming a recess and projection pattern 7 on the upper surface thereof, and a flat plate 4 with pattern is put thereon while sheet molding compound 5 is put on the upper surface of the flat plate 4 as well as on the other part of the floor pan forming mold 2 to form it under this condition whereby the floor pan 6 is formed by the sheet molding compound 5, and the flat plate 4 with pattern is integrated with the surface of the floor pan 6. The lining plate 3 is interposed between the recess and projection part 1 of the floor pan forming mold 2 and the flat plate 4 with pattern, therefore, the affection of the recess and projection part 1 to the flat plate 4 with pattern by the pressure at the forming time may be prevented and the flat plate 4 may be prevented from generating cracks or printing the recesses and projections of the recess and projection part 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field 1] The present invention relates to a method of manufacturing a floor pan using a sheet molding compound.

[Background technology] Floor pan 6 using sheet molding compound 5
In manufacturing, a sheet molding compound 5 is molded using a floor pan mold 2 as shown in FIG. This floor pan forming mold 2 is formed with a washing base or shaped part 10, a bathtub mounting part molded part 11, and a drain groove molded part 12 on the upper surface, and the washing base or shaped part 10 has an uneven part 1. It is a provision. Then, by molding the sheet molding compound 5 using this floor pan mold 2, a floor pan 6 having a washing area 13, a bathtub mounting part 14, and a drain groove 15 as shown in FIG. 4 is manufactured. The washing area 13 has an uneven pattern 7 due to the uneven part 1.
can be formed.

In FIG. 4, 16 is a drain port.

On the other hand, a floor pan 6 as shown in FIG. 5 is also manufactured in which the washing area 13 is provided with a decorative part 17 containing, for example, a 100-day pattern.

The decorative portion 17 is formed by a flat plate 4 with a pattern formed in advance using a sheet molding compound or the like, but when molding this floor pan 6, the existing floor pan molding mold 2 shown in FIG. It is being used as is. That is, the patterned flat plate 4 is placed on the uneven portion 1 of the floor pan mold 2, and then the sheet molding compound 5 is placed on the grout and other parts of the floor pan mold 2. Then, by heating and pressurizing and molding, it is possible to mold the floor pan 6 in which the patterned flat plate 4 is embedded in the surface of the washing area 13 of the floor pan 6 using the cured product of the sheet molding compound 5. be. However, when heating and pressure molding is performed with the patterned flat plate 4 placed on the uneven portion 1 using the conventionally used floor pan forming mold 2, the patterned flat plate 4 forms the uneven portion. There was a problem in that there was a risk that cracks would occur due to pressure contact with the patterned flat plate 4, or that unevenness would be reflected on the patterned flat plate 4 and spoil the appearance.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and eliminates the possibility that cracks or unevenness may occur in a patterned flat plate using a conventionally used floor pan forming mold having an uneven portion. 1] The purpose is to provide a method for manufacturing floor pans without any problems.

1 FIIg of the Invention However, the method for manufacturing a floor pan according to the present invention has an uneven pattern.
A bottom plate 3 is laid on the uneven part 1 of a floor pan forming mold 2, which has an uneven part 1 on the upper surface for forming the pattern. The sheet molding compound 5 is placed on the top surface and the other two sides of the floor pan mold 2, and by molding in this state, the floor pan 6 is molded with the sheet molding compound 5, and the floor pan 6 is also molded. It is characterized by integrating the patterned flat plate 4 on the surface, and by placing the patterned flat plate 4 on the - of the uneven part 1 via the bottom plate 3, the uneven part 1 is formed on the patterned IV plate 4. Make sure that it doesn't work.''
The second object has been achieved, and the present invention will be described in detail below with reference to Examples.

The bottom plate 3 is made of a material that does not easily deform even when press pressure is applied, such as a hard resin or metal plate, and is made of a material that has excellent mold releasability from the resin or coated with a mold release agent on the surface. and use it.

FIG. 1 shows an embodiment of the present invention. First, a floor plate 3 is placed on the uneven portion 1 of a floor pan forming mold 2, which is conventionally used for uphill use, as shown in FIG. A patterned flat plate 4 is placed on this bottom plate 3.

The patterned flat plate 4 is formed as a plate pre-formed with a sheet molding compound or the like, and is provided with a pattern such as a stone grain pattern. Further, the bed plate 3 is formed to have the same size and shape as the patterned flat plate 4. Next, a sheet molding compound 5 is placed on the patterned flat plate 4 and other parts of the floor pan mold 2. Sheet molding compound 5 is created by mixing chopped strands of glass fiber with a thermosetting resin such as unsaturated polyester Q (fat) and forming it into a sheet. After setting, the upper mold 2a is clamped to the floor bread mold 2, and the mold is heated and pressurized.

In this way, as shown in FIG. 5, a molded product can be obtained in which the patterned flat plate 4 is embedded and integrated into the surface of the washing area 13 of the floor pan 6 which is formed by curing the sheet molding compound 5. At this time, since the bottom plate 3 is interposed between the uneven part 1 of the floor pan forming mold 2 and the patterned flat plate 4, the uneven part 1 acts on the patterned half plate 4 due to pressure during molding. This can be prevented by preventing cracks from occurring in the patterned flat plate 4 or from reflecting the unevenness of the uneven portion 1 on the surface of the patterned flat plate 4.

FIG. 2 shows another embodiment of the invention, which is an improvement on the one shown in FIG. In other words, in the case of FIG. 1, the resin of the sheet molding compound 5 penetrates into the lower side of the patterned flat plate 4 from the edge thereof during molding, and the border between the decorative part 17 formed by the patterned flat plate 4 and its surrounding area in the floor pan 6. Although there is a risk that the lines may not be clear, the embodiment shown in FIG. 2 has improved this point. A protrusion 18 extends over the entire length at the end M of the patterned flat plate 4, and the patterned flat plate 4 is placed on the bottom plate 3 as shown in FIG. The lower end of the protrusion 18 is made to come into contact with the upper surface of the floor pan forming mold 2.
As shown in b), place the sheet molding compound 5 on the patterned flat plate 4 and other parts of the floor pan mold 2, and in this state, place the upper mold 2a on the floor pan mold 2. When the mold is clamped and heated and pressure molded, the protrusion 1 of the patterned flat plate 4
8 is in close contact with the upper surface of the floor pan mold 2 to prevent the resin of the sheet molding compound 5 from entering the lower side of the patterned flat plate 4, and to form a boundary between the decorative portion 17 formed by the patterned flat plate 4 and its surrounding area. This makes the lines clearer.

In FIG. 6, the uneven portion 1 provided on the floor pan forming mold 2 is formed by a linear protrusion 19.
is formed in a grid pattern. Among these protrusions 19, the protrusions 19 in the direction perpendicular to the drain groove forming part 12 are inclined so that the upper surface thereof becomes gradually higher toward the drain groove forming part 12 side, as shown in FIG. 6(I)). . The patterned flat plate 4 is also provided with lattice-shaped grooves 20 corresponding to the lattice-shaped protrusions 19 as shown in FIG. 7, and the ridges 19 as shown in FIG.
The patterned flat plate 4 is set in the floor pan forming mold 2 with the groove 20 fitted therein. Therefore, with this product, it is possible to position and accurately set the patterned flat plate 4 into the floor pan mold 2, and the patterned flat plate 4 does not slip and move due to the flow of resin during molding of the sheet molding compound 5. It ends with doing so. Furthermore, as shown in FIG. 8, since the groove 20 is also sloped in accordance with the slope of the protrusion 19, the groove 20 can drain water from the washing area 13 of the floor pan 6. This groove 20 can both prevent slippage.

1. Effects of the Invention] As described above, in the present invention, a floor plate is laid on the uneven parts of a floor pan molding mold which has uneven parts on two sides for forming an uneven pattern, and a floor plate is placed on top of the uneven parts. At the same time as placing a patterned flat plate, sheet molding compound is placed on the upper surface of this patterned flat plate and the upper surface of other parts of the floor pan mold, and by molding in this state, a floor pan is molded with the sheet molding compound. Since the patterned flat plate is integrated into the surface of the floor pan, it is possible to perform molding with the bottom plate interposed between the irregularities of the floor pan mold and the patterned flat plate, making it possible to It can prevent the uneven parts from acting on the patterned flat plate due to pressure, and it is possible to prevent cracks from occurring on the patterned flat plate by using a floor pan forming mold that has uneven parts for forming the uneven pattern. Molding can be carried out without fear that the unevenness of the uneven portion will be reflected on the surface of the patterned flat plate.

[Brief explanation of the drawing]

Figure 1 is a sectional view of one embodiment of the present invention, Figures 2 (a) and (b)
) is a sectional view of another embodiment same as above, FIG. 3 is a sectional view of a floor pan mold, FIG. 4 is a plan view of a floor pan with an uneven pattern, and FIG. 5 is a floor pan with a decorative part. Top view of bread, Figure 6 (,
)(b) is a sectional view showing another method of manufacturing floor pans, FIG. 7 is a plan view of a patterned flat plate used in the above manufacturing process, and FIG. 8 (, Ob) is a line A-A in FIG. 7. FIG. 2 is a cross-sectional view of FIG. 1 is an uneven portion, 2 is a mold for forming a floor pan, 3 is a floor plate, 4 is a patterned flat plate, 5 is a sheet molding compound, 6 is a floor pan, and 7 is an uneven pattern.

Claims (1)

[Claims] (1) A bottom plate is laid on the uneven part of a floor pan molding mold having an uneven part on the upper surface for forming an uneven pattern, and a patterned flat plate is placed on top of this, and the upper surface of this patterned flat plate and The sheet molding compound is placed on the top surface of the other part of the floor pan mold, and by molding in this state, the floor pan is molded with the sheet molding compound, and the patterned flat plate is integrated on the surface of the floor pan. A method for manufacturing a floor pan.