JPH05230859A - Manufacture of western style toilet stool - Google Patents

Abstract

PURPOSE:To enhance the accuracy of a jet hole. CONSTITUTION:At the time of forming a toilet bowl 2 by slip casting method, a jet waterway 12 is formed integrally, and a recessed part 16 is previously formed in a position to form a jet hole 11. This recessed part 16 has a left side wall 17, a right side wall 18 and a back wall 19 toward the front part of a toilet stool 1, and also a bottom wall 20. A waterway hole 21 is bored in the back wall 19 partitioning the recessed part 16 from the jet waterway 12 by the manual work of a worker. A molded piece 24 of L-shape from the side view having a hanging face 22 and a top face 23 is fittingly attached to the recessed part 16 from above. The bore, shape and position accuracy of the jet hole 11 can be thereby heightened to enable the manufacture of a Western style toilet stool remarkably improved in siphon performance. In addition, the Western style toilet stool well-shaped in appearance can be manufactured while facilitating manufacture thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a Western-style toilet bowl, and more particularly to a method for manufacturing a faucet-type western-style toilet bowl having a fountain hole called a zet hole in a trap portion.

[0002]

2. Description of the Related Art Western-style toilets having z-holes No. 3
The description will be made with reference to FIGS. 3 is a plan view, FIG. 4 is a sectional view taken along line IV-IV in FIG. 3, and FIG. 5 is V- in FIG.
It is a V line sectional view.

This Western-style toilet 1 is of a type called a tightly-closed type, and has a toilet bowl 2 on the front side and a mounting portion 3 for a low tank (not shown) on the rear side. A rim water passage 4 is provided so as to circulate the upper edge of the toilet bowl 2, and a large number of water spray ports 5 are provided at intervals on the bottom surface of the rim water passage 4. The rim water passage 4 is provided with a wash water supply inlet 8 via a water supply passage 7 extending toward the rear of the toilet.
Is in communication with.

An opening 9 is formed in the bottom surface of the water supply channel 7, and the opening 9 communicates with a zet hole 11 of the trap portion 10 through a zet channel 12. Reference numeral 13 is a low tank fixing bolt insertion hole, 14 is a toilet seat and toilet lid fixing bolt insertion hole, and 15 is a pedestal portion.

In the flush toilet 1 thus constructed, when flush water is supplied from the low tank through the feed port 8, the flush water flows from the feed channel 7 toward the front of the toilet,
A part of it passes through the opening 9 and the zet channel 12, and then the zet hole 1
It is jetted from 1 to the trap portion 10. The rest of the wash water flows into the rim water passage 4 and flows out of the water spray port 5 into the toilet bowl 2.

The conventional method for manufacturing the Western-style toilet 1 made of earthenware is as follows.

First, the lower main part, which is composed of the toilet bowl 2 and the pedestal portion 15 and the like below it (however, the zet water channel 12 is separately provided), is molded by the mud casting method. In addition, the upper surface of the toilet such as the rim water passage 4 and the low tank mounting portion 3 is formed by the mud casting method, and the both are bonded. The zet hole 11 is hollowed out (arrow) on the surface of the lower main body part facing the trap part 10, and then a molding piece for forming the zet water channel 12 is attached to the outer surface of the toilet bowl 2.

After that, the Western-style toilet 1 made of ceramics is completed by performing drying, glaze and baking.

[0009]

According to the above-described conventional manufacturing method, since the Z-hole 11 is hollowed out by the operator's manual work, the diameter of the Z-hole 11 varies, the direction of the Z-axis 11 in the axial direction, and the like. The position may deviate from the center line of the toilet bowl.

If there is such an error in the z-hole 11,
The startability of the siphon when discharging dirty water from the toilet bowl 2 may not be as expected.

Further, according to the above-described conventional manufacturing method, the molded piece for the Z water channel is attached to the outer surface of the toilet bowl 2, so that the appearance finish tends to be irregular.

[0012]

According to the method of manufacturing a western-style toilet of the present invention, a rim water passage is provided around the upper edge of the toilet bowl, and a trap portion is provided at the bottom of the toilet bowl. In the method for manufacturing a Western-style toilet bowl made of ceramics, the rim water passage and the water inlet at the rear of the toilet communicate with each other by the water passage, and the zet hole and the water passage communicate with each other through the zet waterway. As a method of forming the hole and the part of the zet water channel, the zet water channel and the recessed part facing the trap portion in the part behind the zet hole are formed integrally with the toilet bowl part, and the wall surface of the recessed part is formed. An approximately L-shaped side view shape having a water channel hole in a wall surface separating the zet water channel and the recessed portion, and then having a hanging lower surface covering the surface of the recessed portion facing the trap portion and a ceiling surface covering the upper surface of the recessed portion. Bond the molded piece of It is characterized in that so.

[0013]

According to the method for manufacturing a Western-style toilet of the present invention,
Since the zet hole is formed by the molded piece, the zet hole can be accurately formed according to the design dimension by the molding die (for example, the plaster mold or the porous synthetic resin mold) at the time of the casting molding instead of the manual work. .. Since this molded piece is attached so as to fit into the recessed portion, the z-hole can be accurately provided at the designed position.

Further, according to the present invention, since the Z water channel is also integrally formed with the toilet bowl, the external shape is also adjusted.

Further, in the present invention, the number of bonded portions is small, so that the manufacturing is easy.

[0016]

Embodiments Embodiments will be described below with reference to FIGS.

In the method of this embodiment, when the toilet bowl 2 is formed by the mud casting method, the zet channel 12 is integrally formed and the recess 16 is formed at the position where the zet hole 11 is to be formed. .. This recess 16 is the toilet bowl 1.
Has a left side wall 17, a right side wall 18 and a rear wall 19 toward the front, and further has a bottom wall 20.

A water channel hole 21 is manually cut out by a worker in a back wall 19 separating the zet water channel 12 and the recess 16 from the wall surface of the recess 16. Next, a molded piece 24 having an L-shaped side view shape having a hanging lower surface 22 and a ceiling surface 23 is attached to the recess 16 so as to be fitted from above. The z-hole 11 is formed below the hanging bottom surface 22 by making the hanging bottom surface 22 of the molded piece 24 short.

Others of the method of this embodiment are the same as those of the conventional example.

According to this manufacturing method, the size of the z-hole 11 is highly accurate, and since the molding piece 24 is attached so as to be fitted into the concave portion 16, the position and direction of the z-hole 11 are also highly accurate. Therefore, the amount and direction of the water jetted from the z-hole 11 are as designed, and the siphon starting characteristics are stabilized.

Further, since the zette water channel 12 is formed integrally with the toilet bowl 2, the appearance of the toilet bowl is also made clean. Further, since the length of the bonded portion is short, the manufacturing is easy.

In addition, in this embodiment, the side walls 17 and 18 are located on both sides of the inside of the recess 16 (the small chamber behind the Z-hole 11). Therefore, the water flowing into the small chamber from the zette water channel 12 through the water channel hole 21 is guided by the side walls 17 and 18 and straightly flows toward the rear of the toilet, so that the direction of the fountain from the zet hole 11 is changed. It will be directed straight behind the toilet bowl. As a result, the siphon starting force becomes stronger.

[0023]

As described above, according to the method for manufacturing a Western-style toilet of the present invention, the accuracy of the hole diameter, shape and position of the z-hole can be improved, and a Western-style toilet with significantly improved siphon performance can be manufactured. Further, according to the present invention, it is possible to manufacture a Western-style toilet bowl having a regular appearance. Further, the present invention facilitates the manufacture of Western style toilet bowls.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view illustrating an example method.

FIG. 2 is a perspective cross-sectional view of a main part for explaining an example method.

FIG. 3 is a plan view of a Western-style toilet bowl having a z-hole.

4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

[Explanation of symbols]

 1 Western-style toilet bowl 2 Toilet bowl 4 Rim water channel 7 Water channel 8 Water inlet 10 Trap part 11 Zet hole 12 Zet channel 16 Recessed part 17, 18 Side wall 21 Water channel hole 22 Vertical bottom surface 23 Ceiling surface 24 Formed piece

Claims (1)

[Claims] 1. A rim water passage is provided around the upper edge of the toilet bowl, a trap portion is provided at the bottom of the toilet bowl, and a z-hole is provided in the trap portion. In a method of manufacturing a Western-style toilet bowl made of pottery in which an inlet is communicated with a water supply channel, and the zet hole and the water supply channel are communicated with each other through a zet water channel, the zet hole and the part of the zet water channel are formed. The water channel and the recess facing the trap portion in the portion behind the z-hole are formed integrally with the toilet bowl part, and the water channel hole is formed in the wall surface of the recess which separates the zet channel from the recess. Then, a molded piece having a substantially L-shaped side view shape having a hanging lower surface that covers the surface of the recessed portion facing the trap portion and a ceiling surface that covers the upper surface of the recessed portion is bonded to the recessed portion. Made of Western-style toilet bowl characterized by Method.