JPH0146286B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for casting a toilet base to remove sludge and to improving a mold used in this method.

[Prior Art] A conventional method for molding a toilet bowl base by removing sludge will be explained based on a method for molding a siphon jet type Western-style toilet bowl base. That is, the conventional siphon jet type Western-style toilet bowl base molding method consists of a group of gypsum segments 2 assembled together as shown in FIG.
Inside, a casting space A for forming a discharge part with a double wall structure and a casting space B for forming a water supply part with a double wall structure are formed, and a connection formed in the lower plaster division piece 2a is formed. Prepare a mold 1 in which casting spaces A and B are communicated with each other through passages C and C (see FIGS. 20 and 21), and one end of a slurry supply and discharge pipe 3 is opened in one casting space A, As shown in FIG. 18, slurry S is filled from the slurry supply/discharge pipe 3 into one casting space A and into the other casting space B via the communication passages C and C, and inking is carried out for a predetermined period of time. After the sludge has melted, the unattached sludge S in both the casting spaces A and B is drained into the sludge drainage passage 4a formed in the communication passage C.
4a (see FIG. 20) and the slurry supply/discharge pipe 3, and the gypsum segment group 2 is disassembled to obtain the toilet bowl base 4.

However, as shown in FIGS. 18 and 20, the obtained toilet bowl base 4 has mud passages 4a, which are molded with infill, at locations corresponding to the communication passages C and C.
4a is formed, and the discharge part 4b has a double wall structure.
and the water supply section 4c are in communication with each other. Therefore, as shown in FIGS. 22 and 23, by pressing the sludge drainage passages 4a and 4a from the inside with fingertips (white arrows in the figure) to block them, the toilet base 4a is closed.
It is necessary to prevent the discharge part 4b and the water supply part 4c from being in communication with each other.

[Problems to be Solved by the Invention] However, the sludge casting method for forming a toilet base has the following drawbacks.

○B As shown in Fig. 23, when the mud removal passages 4a, 4a are pressed and closed, the pressing force is transmitted to the side wall portions 4d, deforming the both side wall portions 4d, which may result in defective products. . Therefore, conventionally, the yield was very poor.

○B In order to prevent the deformation of the side walls 4d, 4d, when the pressing force on the sludge drainage passages 4a, 4a is weakened, the sludge drainage passages 4a, 4a may not be completely blocked. However, when using a siphon jet Western-style toilet (not shown) obtained by firing, a portion of the washing water directly flows out from the water supply section to the discharge section, resulting in a decrease in washing ability.

The present invention was created in view of the above circumstances.

[Means for Solving the Problems] Means for solving the above-mentioned problems will be explained below using FIGS. 1 to 5 corresponding to the embodiments.

As shown in FIGS. 1 to 3, the method for pouring slurry into a toilet base according to the first invention consists of a plurality of gypsum segments combined to form a double wall inside. Sludge removal casting to obtain a toilet base 14 using a mold 11 in which a plurality of casting spaces D and E are formed, and the casting spaces D and E are communicated with each other through a communication passage F formed in an appropriate plaster division piece 12b. In the molding method, a communication passage F of the mold 11 is formed from a non-water-absorbing wall f, and mud is removed through the communication passage F.

As shown in FIG. 2, the mold according to the second invention is made up of a plurality of assembled plaster segments, and has internal casting spaces D and E for forming a double wall.
In a mold 11 for pouring toilet slurry, in which a plurality of molds are formed, and the casting spaces D and E are communicated with each other through a communication passage F formed in an appropriate plaster division piece 12b, the communication passage F of the mold 11 is closed. It is formed from a water-absorbing wall surface f.

[Function] As shown in FIGS. 1 to 3, the sludge casting method for toilet base according to the first invention has the following advantages:
If the mold 11 is disassembled after removing mud, the toilet base 1 can be removed without forming any mud drainage passage between the double walls 14b and 14c, as shown in FIGS. 4 and 5.
4 is obtained.

As shown in FIG. 2, the molding die according to the second invention has a communication passage F formed from a non-water-absorbing wall surface f.
Since the casting space D and the casting space E are communicated with each other, the slurry S can be supplied and discharged into the casting spaces D and E through the communication passage F without being deposited in the communication passage F. As shown in Figures 4 and 5,
It is only necessary to form unfilled openings 14f and 14g at locations corresponding to the opening ends of the communicating passages F in the toilet base 14 obtained by mud casting.

[Description of Examples] (First Example) In the first example, the present invention is applied to the molding of a siphon jet type Western-style toilet bowl base.

First, a mold will be explained based on the embodiment shown in FIGS. 1 to 3. The mold 11 is composed of a group of gypsum segments 12 assembled together, and has inside thereof a casting space D for forming a discharge section with a double wall structure and a casting space E for forming a water supply section with a double wall structure. are formed, and the casting spaces D and E are communicated with each other through a communication passage F formed in the upper plaster division piece 12b,
One end of the slurry supply/discharge pipe 13 is opened in one casting space D. The wall surface f of the communication passage F is constructed by embedding a pipe 15 made of synthetic resin, metal, etc. in the plaster division piece 12b, thereby forming a non-water-absorbing inner wall surface 1.
5a. Note that the communication passage F is not limited to being formed from a non-water-absorbing pipe, and as shown in FIG. The wall surface f of the communication passage F may be formed with a non-water-absorbing coating film 16 covering the communication passage F.

Next, a method of casting and molding a siphon jet Western-style toilet bowl base will be described based on the embodiments shown in FIGS. 1 to 7. First, the mold 11 (see FIG. 2) is made up of a group of gypsum segments 12 combined.
Prepare. Next, the slurry S is filled from the slurry supply/discharge pipe 13 into the casting space D and into the casting space E via the communication passage F. Subsequently, after a predetermined time of infilling, the undeposited slurry S in both the casting spaces D and E is discharged through the communication passage F and the slurry supply/discharge pipe 13. Further, the group of gypsum divided pieces 12 is disassembled to obtain a toilet base 14 (see FIG. 4).
Finally, the drainage part 14b of the obtained toilet base 14
As shown in FIG. 7, the unfilled opening 14f formed at a location corresponding to one end of the communication passage F is opened to a larger diameter to form an inlet 14h, and an inlet 14c is provided in the water supply section. After shaping the unfilled opening 14g as necessary to form a jet hole, a separately molded rim water passage portion 17 is joined to complete the siphon jet Western-style toilet base.

(Second Example) In the second example, the present invention is applied to the molding of a siphon-type Western-style toilet base.

First, the mold will be explained based on the embodiment shown in FIGS. 8 and 10. The mold 21 is composed of a group of plaster segments 22 assembled together, and has a casting space G for forming a discharge section with a double wall structure and a casting space H for forming a water supply section with a double wall structure inside. The casting spaces G and H are communicated with each other through a communication passage I formed in the upper plaster division piece 22b, and one end of the slurry supply and discharge pipe 23 is opened in one of the casting spaces G. Wall surface i of the communication passage I
is formed from a non-water-absorbing inner wall surface 25a by embedding a tube 25 made of synthetic resin, metal, etc. in the plaster divided piece 22b.

Next, a method of casting and molding a siphon-type Western-style toilet base by removing mud will be described based on the embodiments shown in FIGS. 8 to 12. First, the mold 21 (see FIG. 8) consisting of the assembled plaster segment group 22 is prepared. Next, the slurry S is passed from the slurry supply/discharge pipe 23 into the casting space G and through the communication passage I to the casting space H.
Fill inside. Continuously, after inking for a predetermined period of time, the unattached slurry S in both the casting spaces G and H is discharged through the communication passage I and the slurry supply/discharge pipe 23. Further, the group of gypsum pieces 22 is disassembled to obtain a toilet base 24 (see FIG. 11). Finally, the unfilled opening 24g formed at a location corresponding to one end of the communication passage I in the water supply portion 24c of the toilet base 24 obtained is shaped as necessary to form a spout hole. , a protruding wall portion 2 above the unfilled opening 24f in the drainage portion 24b;
After cutting out 4i as shown in FIG. 12, the separately molded joining pieces 28, 29 and the rim passageway portion 27 are joined to complete the siphon type Western style toilet base.

(Third Example) In the third example, the present invention is applied to the molding of a siphon vortex type Western-style toilet bowl base.

First, a mold will be explained based on the embodiment shown in FIGS. 14 and 15. The mold 31 is made up of a group of plaster segments 32 assembled together, and includes a casting space J for forming a discharge section with a double wall structure and a casting space J for forming a cavity section with a double wall structure. K
The casting spaces J and K communicate with each other through a communication passage L formed in the upper plaster division piece 32b, and a slurry supply and drainage pipe 33 is provided in one casting space J.
One end is open. The wall surface 1 of the communication passage L is formed from a non-water-absorbing inner wall surface 35a by embedding a pipe 35 made of synthetic resin, metal, or the like in the plaster divided piece 32b.

Next, a method of casting and molding a siphon-vortex type Western-style toilet bowl base will be described based on the embodiment shown in FIGS. 13 to 17. First, the mold 31 (see FIG. 14) consisting of the combined plaster segment group 32 is prepared. Next, the slurry S is filled from the slurry supply/discharge pipe 33 into the casting space J and into the casting space K via the communication passage L. Continuously, after performing inlaying for a predetermined time, both the casting spaces J and K
The unattached slurry S inside is discharged through the communication passage L and the slurry supply/discharge pipe 33. Further, the group of gypsum divided pieces 32 is disassembled to obtain a toilet base 34 (see FIG. 16). Finally, the obtained toilet bowl base 34
an unfilled opening 34f formed at a location corresponding to one end of the communication passage L in the drainage portion 34b;
The lower protruding wall portion 34j is cut out, and the unfilled opening 34g in the cavity 34c is filled with slurry S.
The siphon vortex type Western-style toilet base is completed by closing with clay 40 of the same or substantially the same quality as the toilet bowl and joining the separately shaped rim water passage section 37.

[Effects of the Invention] As detailed above, in the present invention, since the sludge drainage passage that is conventionally formed is not formed, the step of blocking the sludge drainage passage by pressing can be omitted, so that the sludge drainage passage can be made according to the standard without deformation of the side wall portion, etc. In addition to being able to obtain a toilet base of 100 mL, it has excellent effects such as reducing the amount of slurry used and saving resources because no mud drainage passage is formed.

[Brief explanation of drawings]

Figures 1 to 7 show a first embodiment in which the present invention is applied to a siphon jet type Western-style toilet base, and Figure 1 is a cross-sectional view showing the state in which the mold is filled with slurry and inked. Figure 2 is a cross-sectional view of the mold before filling with slurry, and Figure 3 is the same as in Figure 1.
4 is a longitudinal sectional view of the toilet base obtained by disassembling the mold, FIG. 5 is a lateral sectional view taken along the same line as above, and FIG. 6 is a cross-sectional view of another embodiment of the communication passage. The cross-sectional view and FIG. 7 are vertical cross-sectional views of the completed toilet bowl base. Figures 8 to 12 show a second embodiment in which the present invention is applied to a siphon-type Western-style toilet base, and Figure 8 is a cross-sectional view showing the state in which the mold is filled with slurry and inked. Figure 9 is a cross-sectional view of the mold before filling with slurry, Figure 10 is a cross-sectional view taken along the - line in Figure 8, and Figure 11 is the toilet base obtained by disassembling the mold. FIG. 12 is a longitudinal sectional view of the completed toilet bowl base. Figures 13 to 17 show a third embodiment in which the present invention is applied to a siphon vortex type Western-style toilet base, and Figure 13 shows a state in which the mold is filled with slurry and inked. Cross-sectional view shown, 1st
Figure 4 is a cross-sectional view of the mold before filling with slurry, the first
Figure 5 is a cross-sectional view taken along the - line in Figure 13, Figure 16 is a vertical cross-sectional view of the toilet base obtained by disassembling the mold, and Figure 17 is a vertical cross-sectional view of the completed toilet base. . Figures 18 to 23 illustrate a conventional siphon jet type Western-style toilet bowl blank casting method, and Figure 18 is a cross-sectional view showing the state in which the mold is filled with slurry and inked. Figure 19 is a cross-sectional view of the mold before filling with slurry, Figure 20 is a cross-sectional view taken along the - line in Figure 18, Figure 21 is a cross-sectional view taken along the - line in Figure 19, and Figure 22 is a cross-sectional view of the mold before being filled with slurry. FIG. 23 is a longitudinal cross-sectional view of the toilet base obtained by disassembling the same, and FIG. 23 is a cross-sectional view taken along the - line in the same. 11, 21, 31...Mold, 12, 22, 3
2... Gypsum segment group, 13, 23, 33... Slurry supply and drainage pipe, 14, 24, 34... Toilet base, D,
G, J...Casting space, E, H, K...Casting space, F, I, L...Communication passage.

Claims (1)

[Scope of Claims] 1. Consisting of a plurality of gypsum divided pieces combined, a plurality of casting spaces for forming a double wall part are formed inside, and casting is performed through communication passages formed in appropriate gypsum divided pieces. In a sludge casting molding method for obtaining a toilet base using a mold in which spaces are connected,
A method for casting and molding a toilet base for removing mud, characterized in that the communication passage of the mold is formed from a non-water-absorbing wall surface, and mud is removed through the communication passage. 2. The method of draining and casting a toilet base according to claim 1, wherein an unfilled opening formed at a location corresponding to one end of the communication passage in the toilet base is closed with clay. 3 Consisting of a plurality of plaster division pieces combined, a plurality of casting spaces are formed inside to form a double wall part, and the casting spaces are communicated with each other through communication passages formed in appropriate plaster division pieces. 1. A mold for pouring slurry into a toilet bowl, characterized in that the communication passage of the mold is formed from a non-water-absorbing wall surface.