JPS6019667Y2 - bathtub - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bathtub, and more specifically, the rim and the upper part of the inner surface of the bathtub are made of plastic, and the lower part and bottom of the inner surface of the bathtub are made of stainless steel. Tile, wax, plastic, stainless steel, etc. were used.

Consumers used to consider the advantages and disadvantages of each of these materials and use a bathtub made of the desired material.

However, since each material has different strengths and weaknesses,
When consumers focus on the advantages of a certain material and use it,
At the same time, he had no choice but to accept the drawbacks of the materials used.

For example, plastic bathtubs are cheap and can be made in any color and shape, but they are easily scratched and easily damaged by air transport, while stainless steel bathtubs are less likely to be scratched and are easily damaged by air transport. Even if they were washed, they would not be easily damaged, but they were expensive and had cold edges.

Therefore, the present invention focused on plastic and stainless steel materials, which have particularly excellent properties among bathtub materials, and used stainless steel for the bottom and bottom of the bathtub, which is heavily soiled, and plastic for the top and around the edges of the bathtub. It was devised with the aim of providing an ideal bathtub that could be manufactured at a relatively low cost by using materials that would not be easily damaged even when airborne, and that had warm edges. The gist of this is that the peripheral wall is divided into an upper bathtub and a lower bathtub approximately at the center in the height direction, the upper bathtub is molded from a plastic material, the lower bathtub is formed from a stainless steel plate, and the upper bathtub is This consists in that the lower end edge and the upper end edge of the lower bathtub are closely fixed and formed.

Embodiments of the present invention will be explained below while explaining the illustrated examples.

The present invention forms an upper bathtub 2 and a lower bathtub 3, which are divided approximately at the center in the height direction of the peripheral wall 1, by closely fixing the upper edge 5 of the lower bathtub 3 to the lower edge 4 of the upper bathtub 2. .

The upper bathtub 2 is molded from a plastic material, such as glass fiber reinforced plastic material or polypropylene resin, and has an upper fixing part 6 at its lower edge 4.

The lower bathtub 3 is formed by drawing and forming a single stainless steel plate, and is provided with a lower fixing part 7 on its upper edge 5 that is closely fixed to the upper fixing part 6.

Therefore, in the present invention, the lower bathtub 3, which is the lower part of the inner surface of the bathtub which is particularly dirty, is formed of a stainless steel plate, so that cleaning can be easily performed and the cleanliness can be maintained for a long period of time.

Furthermore, even if there is an air leak or if the amount of hot water is low and it boils, it is unlikely to be damaged because the lower bathtub 3, which is made of stainless steel plate, will be affected. .

In addition, compared to conventional stainless steel bathtubs, the depth of the stainless steel plate can be reduced to about half, making processing easier.

Note that if a heat insulating material 8 made of urethane resin or the like is fixed to the outer periphery of the lower bathtub 3, the hot water etc. will not cool down easily.

In addition, in the present invention, since the upper bathtub 2 is made of plastic material, the edges that are touched during bathing are not cold like stainless steel bathtubs, and have appropriate warmth, making bathing easier. Not only can it be applied freely, but it can also be manufactured at a low cost.

In other words, the present invention can be said to have successfully combined the advantages of stainless steel and plastic materials.

Next, the specific structure and fixing method of the upper fixing part 6 and the lower fixing part 7 will be explained.

First, as a first method, a flange 10 is appropriately provided on the lower fixing part 7, and the flange 10 is integrally molded when the upper fixing part 6 is molded, so that the upper fixing part 6 is closely fixed.

(See Figure 2). In this way, there is no particular need for a step of closely fixing, and the close fixing can be carried out as the upper bathtub 2 is molded, which is convenient.

As another method, a flange 10 is provided on the lower fixing part 7, and a loosening groove 1 is provided in which the flange 10 is loosely attached to the upper fixing part 6.
1, and after loosely fitting the flange 10 into the loosening groove 11, the resin 12 is injected into the loosening groove 11 and solidified, and the upper bathtub 2 is closed.
There is also a method of tightly fixing the lower bathtub 3 and the lower bathtub 3 (see Fig. 3).

In this way, strain due to fixing is unlikely to occur in each of the fixing parts 6, 7 of the upper bathtub 2 and the lower bathtub 3.

Furthermore, as another method, the flange 1 provided on the lower fixing part 7
0 is provided on the upper fixing part 6 with an upper flange 13 in close contact with the
After both flanges 10.13 are brought into close contact, both flanges 10
．． There is a method of holding down 13 with a presser 14 as appropriate.

(See Figure 4). This method can be performed without special tools.

Note that if adhesive or liquid packing is applied between both flanges 10 and 13, the adhesion effect will be excellent.

Another method is to wrap and fix the flange 1o of the lower fixing part 7 around the upper flange 13 provided on the upper fixing part 6 (see FIG. 6).

With this method, adhesion cannot be expected, so a packing material 15, adhesive, liquid packing, etc. must be used, but since the vertical fixation is reliable, the upper and lower bathtubs 2 and 3 can be secured during transportation, etc. There is no risk of separation.

Still another method is to provide a flange 10 on the lower fixing part 7 and a loosening groove 1 in the upper fixing part 6 for loosening the flange 1o.
1 and loosely fitting the flange 10 into the loosening groove 11,
This is a method of applying high frequency heating to the periphery of the loosening groove 11 to bring them into close contact (see FIG. 6).

According to this method, close fixation can be performed reliably as in the case of the integral skin type.

Various methods of tightly fixing the upper fixing part 6 and the lower fixing part 7 have been described above, but any method or other method will ensure that they are properly fixed tightly together to prevent water leakage and to prevent separation during transportation. It is necessary to do so.

As mentioned above, the present invention combines the advantages of stainless steel and plastic materials, and has the advantages of being easy to clean, not easily damaged by air travel, and having warm edges. In addition, it is inexpensive and can be mass-produced, which has great practical effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a sectional view, Fig. 3, Fig. 4, Fig. 5A,
B and FIGS. 6A and 6B are sectional views of main parts showing other embodiments of the fixing part, respectively. 1... Peripheral wall, 2... Upper bathtub, 3...
... lower bathtub, 4 ... lower edge, 5 ...
...Top edge, 6.Curved top fixing part, 7...Lower fixing part, butt...Insulating material, 10...Flange, 11...Loose Groove, 12...Resin,
13... Upper flange, 14... Holder, 15... Packing material.

Claims (1)

[Scope of utility model registration request] Divided into an upper bathtub and a lower bathtub approximately at the center in the height direction of the surrounding wall,
A bathtub characterized in that the upper bathtub is molded from a plastic material, the lower bathtub is formed from a stainless steel plate, and the lower edge of the upper bathtub and the upper edge of the lower bathtub are tightly fixed.