JPH0414045B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a bathroom half unit by mechanical molding such as a press method or a resin injection method.

Conventionally, a bathroom half unit D made of synthetic resin has been used in which a bathtub part A and a washing area B are integrally connected by an upper connecting part C, as shown in Fig. 1. Manufactured by mechanical molding methods such as the Yong method.

However, as shown in the diagram, the bathroom half unit D
Since a lower space E is formed between the bathtub section A and the washing area B, if this is simply placed on a footrest (not shown), the bathtub section A and the washing area B can be separated. tends to swing left and right, and as a result, the same unit D
This may cause cracks to occur in the pipes, or undesired force may be applied to the drain pipes connected to both parts A and B, causing water leakage.

Therefore, on the bottom surface of the bathroom half unit D obtained by machine forming, a leg base F as shown in FIG.
Apply from bathroom tank A to washing area B,
By bonding this with adhesive G, both parts A,
This is to prevent the swing of B as described above.

The reason why the reinforcing work is carried out after molding is that even if a bathroom half unit with footrest F was to be machine molded, due to its structure, it would not be possible to cut out the female mold from the male mold. After the molding work, the base was glued again.
Therefore, as shown in Fig. 1, separate footrests A' and B' are installed in the bathtub part A and the washing area B by machine molding. It has also been proposed to form them integrally so that they can be cut out, and to connect the footrests A' and B' of the thus obtained bathroom half unit D' with reinforcing arms H. In this case as well, not only is a connection operation required after molding, but the above-mentioned anti-sway effect is not sufficient.

In addition, as shown in the figure (ro), in the lower space E, it has been proposed to integrally form the rib I connecting the bathtub part A, the washing area B, and the upper connecting part C by mechanical molding. However, not only is the effect of the steady rest unsatisfactory, but the amount of resin consumed is large, and furthermore, in the conventional example mentioned above, the lower cavity E is directly visible from the front side. As a result, it looks unsightly.

As a result of studies in view of the above-mentioned problems, the present invention has made it possible to obtain a final product that can ensure a satisfactory steady rest only by mechanical forming.
The feature is that the bathtub part and the washing area part are connected and integrated by the upper connecting part, and the bathroom half unit in which the lower space is formed between the bathtub part and the washing area part can be divided into male and female types. In a method of mechanical molding using a synthetic resin that fills the spaces between the
After covering the surface of the male mold with the preform, the recess on the preform in which the lower cavity of the bathroom half unit is to be formed is partially or completely filled with a solid material on the upper end surface thereof. The buried pedestals placed on
The synthetic resin extends horizontally to the preform surface where the bottom walls of the male bathtub part and the washing area part are formed, and fills the gap between the male mold and the female mold. The reason lies in the fact that the solid material is used to enclose the buried pedestal.

The molding method according to the present invention will be described in detail below with reference to the drawings. First, a known preform made of glass fiber is placed on the surface of a male mold 1 prepared for molding the bathroom half unit D shown in FIG. 2
is coated as shown in Figures 3 and 4.

Next, for the male type 1, install the bathroom half unit D.
As shown in the previous figure, the fitting solid materials 3, 3 are arranged in the recess 1' where the lower cavity E is to be formed, and the preform 2 is
In this case, in the illustrated example, two solid fitting materials 3, 3 are placed spaced apart in the depth direction, but a lower space E is formed by one solid material 3. Alternatively, the recess 1' to be removed may be completely closed.

Here, it is desirable to adopt a foam made of synthetic resin as the solid fitting materials 3, 3 in consideration of weight reduction.

Furthermore, as shown in FIG. 3, two buried pillars 4, 4 made of wood or the like are prepared in the illustrated example, and the middle part thereof is placed on the upper end surface of the solid material 3, 3. By doing so, the male mold 1 is aligned in the longitudinal direction, and the pillars 4, 4 are placed in the male mold 1 at the locations where the bottom walls of the bathtub section A and the washing area B of the same unit D will be formed. It extends horizontally up to 1", 1" above.

After the preparation process as described above is completed, the female mold 5 is covered as shown in FIG. When fixing with an appropriate means (not shown) and using the resin injection method, the product is obtained by press-fitting the synthetic resin through the microwave inlet of the female mold 5 (not shown). Of course, the solid fitting materials 3, 3 and the buried pillars 4, 4 are encapsulated and integrated in the buried state.

Of course, it is also possible to apply a preform to the fitting solid materials 3, 3 and the buried pillars 4, 4 before press-fitting the synthetic resin as described above.

Finally, the female mold 5 is demolded as is known, but at this time, the buried pillars 4, 4 are simply replaced by the male mold 1.
It is not placed over the recess 1' where the lower cavity E is to be formed, but at least on the underside of the buried pedestals 4, 4. Since the fitting solid materials 3, 3 are placed vertically in the recess 1', the female die 5 can be punched out without any problem.

Therefore, the bathroom half unit obtained by the above-mentioned method of the invention can be a complete product without requiring any reinforcing means, so productivity can be significantly improved compared to the conventional method, and the resulting product The fitting solid materials 3, 3 and the buried pillars 4, 4, which are integrated and buried, can firmly prevent the swinging of the bathtub section A and the washing area B, and the lower cavity E is not fitted. Appropriate placement of the solid material creates a closed state, which improves the commercial value in terms of appearance.

[Brief explanation of drawings]

A and B in Fig. 1 are a schematic vertical sectional front view and a partially cutaway schematic front view showing different examples of bathroom half units obtained by the conventional method, and Fig. 2 is a mechanical molding according to the present invention. According to the method, a plan view of the male mold with the necessary parts mounted, Fig. 3 is a vertical front view taken along the - line in Fig. 2, and Fig. 4 shows the female mold in the process of being mounted on the male mold of Fig. 2. FIG. 2 is a cross-sectional view taken along the - line in FIG. 2; 1...male type, 1'...male type recess, 1''...place forming the bottom wall of the male type bathtub part, 1...place forming the bottom wall of the male type washing area part, 2... Preform, 3... Fitting solid material, 4... Buried pedestal, 5...
Female type, D... Bathroom half unit, E... Lower space of bathroom half unit.

Claims (1)

[Scope of Claims] 1. A bathroom half unit in which a bathtub part and a washing area are integrally connected by an upper connecting part, and a lower space is formed between the bathtub part and the washing area, is divided into a male type and a female type. In a method of mechanical molding using a synthetic resin that fills the gap between the male mold and the mold, after the surface of the male mold is coated with a preform, a recess on the preform in which the lower cavity of the bathroom half unit is to be formed is formed. In this case, a solid fitting material is placed upright on a part or the front part, and a buried pedestal placed on the upper end surface of the solid fitting material is used to form the bottom walls of the male bathtub part and the washing area part. extending horizontally over the preform surface at the location where the
A method for mechanically molding a bathroom half unit, characterized in that the solid fitting material and the buried pedestal are covered with the synthetic resin filled in the gap between the male mold and the female mold. 2. It is characterized by having two buried pillars, and below each of these pillars, each solid material is placed at a distance, and the solid material is made of synthetic resin foam. A method for mechanically forming a bathroom half unit according to claim 1.