JPH10248739A - Water tank and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate manufacture, to improve the degree of freedom of a shape and design and to reduce a cost by integrally joining plural division bodies and constituting a water tank. SOLUTION: The fitting projection part 34 in a dovetail form of a position and the shape corresponding to a fitting groove 32 is projectingly provided downward and the respective division bodies 30, 26 and 28 are joined in the state of fitting the fitting projection part 34 to the fitting groove 32. Further, the division body 28 is provided with the fitting groove 36 in a rectangular shape in a joining part with the division body 26 and the pair of the corresponding division bodies 26 are respectively provided with the fitting projection part 38 of the position and the shape corresponding to the fitting groove 36. Then, the division body 28 and the division body 26 are joined in the state of fitting the fitting projection part 38 to the fitting groove 36. At the time, an adhesive material is applied to the joining end faces of the respective division bodies 26, 28 and 30 and the mutual joining parts are turned to a tightly adhered state. In this case, the joining parts of the respective division bodies 26, 28 and 30 are water-tightly sealed by the adhesive material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water tank such as a large ceramic tub.

[Background of the Invention] Large water tanks, for example, bathtubs which are representative of them, are conventionally made of various materials, but typical ones are a stainless steel bathtub made of stainless steel, a metal substrate, and generally a steel plate made of glass. Enamel bathtubs coated with high quality glaze, resin bathtubs made of resin, and the like.

[0003] However, since the stainless steel bathtub is made of a thin metal plate, it is insufficient in terms of rigidity and solid feeling. When a bather enters the bathtub, the bathtub feels rough and comfortable. Is also insufficient.

Further, in the case of an enamel bath, there is a problem that the glaze layer is peeled off due to deterioration of the glaze interface during long-term use due to insufficient hot water resistance. Similarly, in the case of a resin bath, the hot water resistance and the chemical resistance are insufficient, and the resin deteriorates during long-term use, and there is a problem in terms of long life. Also, in the case of a resin bath, there is a problem in terms of texture and solid feeling, and it is not always satisfactory in terms of rigidity, luxury, aesthetics, and the like.

[0005] On the other hand, when the bathtub is constructed by tile or stone, it is possible to give a solid feeling and a high-class feeling. In this case, however, the craftsman manually makes the bathtub, and the bathtub is manufactured. It takes a lot of trouble and time, and the cost is high.

Further, in the case of these tiled and stone-coated bathtubs, cracks and cracks are caused by deterioration of the base,
There was a problem that mold was easily grown on the joints, so that the joints were easily stained, and there was also a problem of deterioration of the joints, so that maintenance was troublesome.

On the other hand, it is conceivable that the entire bathtub is made of ceramic. However, the bathtub is too large and too heavy for a ceramic article, so that a general method of manufacturing a ceramic article could not be used, and the conventional bathtub had to be handmade. In this case, as in the case of the tiled bath tub and the stone bath tub, the product must be a limited product by a craftsman, which requires much labor and time for manufacturing, and also increases the cost.

Therefore, the present inventors have devised a manufacturing method capable of mass-producing such a ceramic tub on an industrial scale, and have proposed it in the earlier patent application (Japanese Patent Application No. 8-219303).

According to this method, a ceramic tub of a certain quality can be provided on an industrial scale, and aesthetics, luxury, and profound feeling which could not be obtained in the past can be imparted to the tub, and the hot tub can be provided with hot water. In addition, the chemical resistance can be remarkably increased, and the long-term durability can be greatly improved.

However, when such a large porcelain bathtub is integrally formed, the bathtub is heavy (for example, about 160 kg in weight), so that the bathtub is carried into a construction site.
The problem that transportation is not easy remains.

When the bathtub is integrally formed as described above, not only is it not easy to manufacture the bathtub itself, but also there is a problem that the design and design of the bathtub are significantly restricted. The large ceramic tub has been described above as an example,
This problem is a common problem in other aquariums, especially large ceramic aquariums.

[0012]

The water tank according to the present invention has been devised to solve such a problem. According to the first aspect of the present invention, a plurality of divided bodies are integrally joined to form a water tank.

According to a second aspect of the present invention, in the first aspect, at least one of the divided bodies has a curved portion in a water tank.

According to a third aspect of the present invention, in any one of the first and second aspects, the size of the water tank is 500 to 2000 mm in a horizontal direction in plan view and 500 to 2000 mm in a direction perpendicular thereto. And the height dimension is 100 ~
1000 mm, weighing 50-300 kg,
It is characterized in that it has a size having a thickness of 20 to 50 mm in the tank body.

According to a fourth aspect of the present invention, in any one of the first, second, and third aspects, the joint between the divided bodies has a fitting structure of a dovetail groove and a dovetail-shaped portion. I do.

A fifth aspect is the first, second, third and fourth aspects.
In any one of the above, the water tank is made of ceramic.

A sixth aspect of the present invention is the method for manufacturing a ceramic water tank according to the fifth aspect, wherein each of the divided bodies is formed and fired, and the divided bodies made of the fired articles are carried into a construction site, and the divided bodies are fired at the construction site. Each divided body is joined to each other to form an integrated water tank.

According to a seventh aspect, in the sixth aspect, the particle size is 1
30 to 60% by weight fraction of coarse aggregate of ３3 mm, and 30 to 60% by weight fraction of fine particles having a particle size of 10 μm to less than 1 mm
Each of the divided bodies is molded and fired using a fusible geological material containing each and having a shrinkage rate of 5% or less during firing.

[0019]

According to the first aspect of the present invention, a plurality of divided bodies are integrally joined to form a water tank. In this case, an integrally formed water tank, especially a large water tank, is formed. It is possible to solve the problem of difficulty in transportation or carrying into the construction site occurring in the integrally formed water tank.

That is, since each of the divided bodies is carried into the construction site and the divided bodies are joined to each other to form a water tank, the problem of transporting and carrying in the integrally formed water tank which is heavy is solved. be able to.

According to the first aspect of the present invention, since the water tank is formed by integrally joining the plurality of divided bodies, the manufacturing itself becomes easier as compared with the case of the integrally formed water tank, and the shape design and design thereof are improved. The degree of freedom is increased.
In addition, since the production becomes easy, an advantage that the cost for producing the water tank can be reduced can be obtained.

Here, each divided body may have a curved portion in the water tank (claim 2).

As is clear from the above description, the present invention is particularly effective when applied to a large water tank. Specifically, the dimension in the left-right direction in plan view is 500 to 2000 m.
m is 500 to 2000 mm in a direction perpendicular to the above, and the height is 100 to 1000 mm, the weight is 50 to 300 kg, and the size is 20 to 50 mm. This is particularly effective (claim 3).

In the water tank according to a fourth aspect of the present invention, the joint between the divided bodies has a fitting structure of a dovetail groove and a dovetail-shaped part.
In this way, the strength of the joining portion can be made to withstand a large water pressure well, and the positioning at the time of the joining operation is automatically performed, thereby facilitating the joining operation. Is obtained.

The present invention is also highly effective when applied to a ceramic water tank (Claim 5). In manufacturing such a ceramic water tank, each of the divided bodies is molded and fired. The divided body made of the fired product is carried into the construction site, where the divided bodies can be joined to each other to form an integrated water tank (claim 6). If you do this,
A similar ceramic water tank can be constructed without impairing the solid feeling and material feeling of the integrally formed ceramic water tank.

In this case, the shrinkage during firing is 5
% Of each of the divided bodies using a material of not more than
It is desirable to perform firing (claim 7). As a result, the dimensional accuracy of each divided body after firing can be made high, and this can be performed well when the fired divided bodies are joined to each other.

Further, in order to suppress the shrinkage during firing as described above, and further to reduce the water absorption in the water tank (preferably to 5% or less), a coarse aggregate having a particle size of 1 to 3 mm is used. Is preferably used in an amount of 30-60% and fine particles having a particle size of 10 μm-1 mm in an amount of 30-60% (weight fraction). In the manufacturing method according to the seventh aspect, the shrinkage ratio during firing is more preferably 0 to 3%, and the particle size of the coarse aggregate is 1 to 2 mm, its weight fraction is 40 to 50%, and the fine aggregate is fine. Particle size of 10 μm to 0.5 m
m, and its weight fraction is more preferably 40 to 50%.

[0028]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1, 2 and 3, reference numeral 10 denotes a ceramic tub as a large water tank having a bottom portion 12 and a side wall portion 14. The side wall portion 14 further includes a pair of a long side portion 16 and a short side portion. It consists of a part 18. Note that a drain port 20 is formed in the bottom portion 12.

As shown in FIGS. 2 and 3, the bathtub 10 has a longitudinal dimension (left-right direction) L of 1520 mm and a width W in a direction perpendicular thereto of 800 m in plan view.
m, height H is 480 mm, wall thickness at side wall 14 is 30 mm, internal volume is 280 liters, and weight is 160 k.
g large and heavy.

As clearly shown in FIG. 2, in the bathtub 10 of this embodiment, the long side 16 and the short side 18 themselves have a curved shape with a large curvature, and the long side 16 The shape of the corner from the to the short side 18 is a curved portion 22 having a smaller curvature. Further, a portion from the long side portion 16 and the short side portion 18 to the bottom portion 12 is also a curved portion 24 having a small curvature.

The bathtub 10 of this embodiment is obtained by joining a plurality of divided bodies together and integrating them. FIG. 4 schematically shows an example of the divided pattern. In this example of the division pattern, the bathtub 10 is divided into a pair of divided bodies 26 corresponding to the long sides 16, a pair of divided bodies 28 corresponding to the short sides 18, and a divided body 30 corresponding to the bottom 12. I have.

Strictly speaking, the division position between the divided body 26 and the divided body 28 is not exactly the boundary position between the long side portion 16 and the short side portion 18 but rather a predetermined distance from the boundary position to the long side portion 16 (strictly). Is located at a position deviated toward the center of the long side 16). That is, the divided body 28 corresponding to the short side portion 18 has the curved portion 22.

The divided body 30 corresponding to the bottom 12 has a structure shown in FIG.
(B) A dovetail-shaped fitting groove 32 is provided at both ends in the middle and left-right direction (the figure is a bottom view), that is, at a joint portion with the divided body 26 corresponding to the long side portion 16. Fitting grooves 32 are also provided at both ends in the vertical direction, that is, at joints with the divided bodies 28 corresponding to the short sides 18.

On the other hand, each of the divided body 26 corresponding to the long side part 16 and the divided body 28 corresponding to the short side part 18 has the above-mentioned fitting at the joint portion with the divided body 30 corresponding to the lower end and the bottom part 12. A dovetail-shaped fitting protrusion 34 having a position and a shape corresponding to the mating groove 32 is provided to project downward, and each of the divided bodies 30 is fitted with the fitting protrusion 34 in the fitting groove 32. , 26 and 28 are joined.

Further, the divided body 28 is provided with a rectangular fitting groove 36 at a joint portion with the divided body 26, and the pair of corresponding divided bodies 26 correspond to the fitting groove 36. Position and shape fitting projections 38 are provided, respectively. The divided body 28 and the divided body 26 are joined with the fitting projections 38 fitted in the fitting grooves 36.

At this time, each of the divided bodies 26, 28, 30
An adhesive is applied to the joint end surfaces of the two to make the joints of each other adhered. In this case, the joint between the divided bodies 26, 28, 30 can be water-tightly sealed with the adhesive. In addition, it is also possible to seal the joint part separately from the adhesive so as to secure the sealing property by the sealing.

In this example, about 40% of coarse-grained aggregate (chamotte) having an average particle size of 2 mm and an average particle size of 80 μm were used.
Each of the divided bodies 26, 28, 30 is made of a fusible geological material containing 40% and 20% of fine-grained clay and porcelain clay, respectively, and having a shrinkage of 0 to 3% during firing. The bathtub 10 is formed by forming and firing, and joining the divided bodies 26, 28, and 30 after firing to each other.

In this embodiment, a plurality of divided bodies 26, 28, 30
Are integrally joined to form the bathtub 10, so that even the large-sized ceramic bathtub 10 can solve the problem of difficulties in transportation or carrying into the construction site in the integrally formed bathtub.

In addition, according to this embodiment, the plurality of divided bodies 26,
Since the bathtub 10 is formed by integrally joining the bathtubs 28 and 30, the production itself becomes easier as compared with the integrally formed bathtub.
Further, there is an advantage that the degree of freedom in design and design of the shape is increased. Further, since the production of the bathtub 10 is facilitated, there is also obtained an advantage that the production cost can be reduced.

Further, in the bathtub 10 of this embodiment, the divided bodies 26, 2
The joint between the divided bodies 26, 28, 30 is formed by fitting the dovetails 8, 30 with the dovetail-shaped fitting groove 32 and the dovetail-shaped fitting projection 34. Can be made strong enough to withstand a large water pressure, and positioning can be automatically performed at the time of the joining operation, so that the joining operation itself is easy.

FIGS. 5 to 7 show examples of division patterns different from those shown in FIG. First, the example of the division pattern in FIG.
The long side 16 in FIG. 4 is vertically divided just at the intermediate position, and the bathtub 10 is divided into two members, a divided body 40 on the left side and a divided body 42 on the right side in the figure.

In this example, each of the divided bodies 40 and 42 has a curved portion 22 at the boundary between the long side portion 16 and the short side portion 18. A dovetail-shaped fitting groove 32 is provided on the divided body 42 side, and a dovetail-shaped fitting protrusion 34 is provided on the divided body 40 side.
Are provided at corresponding positions.

In this example of the division pattern, at the construction site, the divided body 40 is arranged vertically in FIG. 5C, that is, in a direction perpendicular to the inner and outer surfaces of the long side portion 16 in the bathtub 10.
The bathtub 10 can be integrally formed by fitting the fitting projections 34 into the fitting grooves 32 so that the bathtubs 10 and 42 slide.

In this division pattern, as described above, the bathtub 10 is divided right and left at the intermediate position in the longitudinal direction of the long side portion 16 by the vertical dividing line. It may be divided right and left at a biased position.

Next, in the example of the division pattern shown in FIG. 6, the bathtub 10 is vertically and T-shaped as shown in FIG. 6C, and the bathtub 10 is divided into three members 44, 46, and 48. doing. Specifically, the divided body 44 has one long side portion 16, half of the one short side portion 18, and the curved shape portion 22 at the boundary between them, and the divided body 46 has the other long side portion 16 and the other long side portion 16. The other half of the short side portion 18 and the curved portion 22 at the boundary between them
Further, the bathtub 10 is horizontally divided into three by a vertical dividing line so that the divided body 48 has the other short side portion 18 and the curved portions 22 at both ends thereof.

Also in this example, each of the divided bodies 44, 46, and 4 is fitted by fitting the fitting groove 32 provided in the divided bodies 44, 46, and 48 with the fitting projection 34 at the construction site.
8 can be joined together to form an integrated bathtub 10.

Further, in the example of the division pattern shown in FIG.
At the middle position in the vertical direction, is vertically divided into two by a horizontal dividing line. Also in this example, the upper split body 50 and the lower split body 52 can be joined to each other at the construction site to form an integrated bathtub 10.

In this example, an annular fitting groove 54 having a uniform width is formed on the lower end surface of the upper divided body 50 over the entire periphery of the side wall portion 14, while corresponding to the fitting groove 54. An annular fitting protrusion 56 is formed on the upper end surface of the lower divided body 52, and the divided bodies 50 and 52 are joined so that the fitting protrusion 56 is fitted into the fitting grooves 54. .

In the example of the division patterns of FIGS. 5 to 7 as well, similarly to the example of the division pattern of FIG. 4, the respective divided bodies can be joined by using an adhesive, and a sealing material is further attached to the joint. It can also be applied.

Although the embodiment of the present invention has been described in detail, this is merely an example. For example, in the above embodiment, the bathtub 10 can be vertically divided just at the intermediate position of the curved portion 22. Further, the bathtub 10 of the above embodiment is merely an example of a bathtub, and the present invention can be applied to other types of bathtubs, and further to other large water tanks other than the bathtub. It can be configured in a form in which various changes are made without departing from the scope.

[Brief description of the drawings]

FIG. 1 is a view showing a bathtub comprising a plurality of divided bodies according to one embodiment of the present invention.

FIG. 2 is a sectional view showing a configuration of the bathtub of FIG.

FIG. 3 is a cross-sectional view showing the configuration of the bathtub of FIG. 1, viewed from a different direction from FIG. 2;

FIG. 4 is a diagram showing an example of a division pattern of the bathtub of FIG. 1;

FIG. 5 is a diagram illustrating another example of a division pattern different from FIG. 4;

FIG. 6 is a diagram showing another example of a division pattern.

FIG. 7 is a diagram showing another example of a division pattern.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Ceramic bathtub (large water tank) 12 Bottom part 14 Side wall part 22, 24 Curved shape part 26, 28, 30, 40, 42, 44, 46, 48, 5
0,52 Split body 32 Fitting groove (dovetail groove) 34 Fitting projection (dovetail-shaped part) 36,54 Fitting groove 38,56 Fitting projection

Claims (7)

[Claims] 1. An aquarium comprising a plurality of divided bodies integrally joined. 2. The water tank according to claim 1, wherein at least one of the divided bodies has a curved portion in the water tank. 3. The water tank according to claim 1, wherein the size of the water tank in the left-right direction is 500 to 2 in plan view.
000mm and the dimension perpendicular to this is 500-2000
A water tank having a height of 100 to 1000 mm, a weight of 50 to 300 kg, and a thickness of 20 to 50 mm in the tank body. 4. The water tank according to claim 1, wherein the joint between the divided bodies has a fitting structure of a dovetail groove and a dovetail-shaped portion. 5. The water tank according to claim 1, wherein the water tank is made of ceramic. 6. The method for manufacturing a ceramic water tank according to claim 5, wherein each of the divided bodies is formed and fired, and the divided bodies made of the fired articles are carried into a construction site, and each divided body is divided at the construction site. A method for producing an aquarium, wherein the bodies are joined together to form an integrated aquarium. 7. The method according to claim 6, wherein the coarse aggregate having a particle size of 1 to 3 mm is 30 to 60% by weight and a particle size of 10 μm to 10 μm.
Each of the divided bodies is formed and fired using a fusible geological material containing fine grains of less than 1 mm in a weight fraction of 30 to 60% and a shrinkage ratio during firing of 5% or less. Manufacturing method of ceramic water tank.