JP2652483B2 - Casting method of water seal joint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for casting a water seal joint constituting a water seal part in a urinal or the like.

[0002]

2. Description of the Related Art A water seal portion S for storing water W is formed in a lower part of a urinal 1 as shown in a sectional view of a main part in FIG. A lower portion of the drain port 3 formed in the bowl portion 2 is surrounded by a leg wall 4, and a hanging piece portion 5 is formed in a hanging manner from the drain port 3, and is formed as a separate communication piece. The bottom plate 6 having the opening 6a is attached to the lower ends of the leg walls 4 and 4, and a plate-shaped water sealing joint 7 separately formed and cast is joined to the bottom plate 6 in an upright manner. After the bottom plate 6 and the water seal joint 7 are attached to the leg wall 4 and integrated as described above, the entire urinal 1 is dried and fired to form the water seal portion S.

The water seal joint 7 is formed by using a casting mold 10 as shown in a sectional view of FIG. 4 and a plan view of FIG. Lower mold 1 formed
1 and an upper mold 12 having a casting port 14 formed therein. The slurry is poured into the casting space 13 from the casting port 14 to form a plate-shaped water seal joint 7 as shown in a plan view in FIG. It is shaped,
The portion of the casting port 14 of the water-sealed joint 7 is cut later, but a portion having a non-uniform density is generated in this portion, and a crack may be generated in this portion when the water-sealed joint 7 is fired later. In many cases, when the crack 7a is formed during firing, when the water W is stored in the water seal portion S, the water W flows from the crack 7a to the communication port 6a side, and the water seal becomes incomplete, and the water seal becomes incomplete. Thus, there are obstacles such as an unpleasant odor rising toward the bowl portion 2 and insects and the like rising up into the bowl portion 2 from below.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to form a water-sealed joint without cracks. A water-sealed joint formed separately by casting to form a water-sealed portion, wherein the water-sealed joint has a casting space extending in a horizontal direction, and a slurry from the side into the casting space. That is to say, it is shaped in a casting mold provided with a casting port for pouring.

[0005]

The water-sealed joint forming the water-sealed portion of a urinal or the like has a casting space extending in the horizontal direction, and a casting port having a casting port into which the slurry flows from the side into the casting space. Because it is shaped in the casting mold, the slurry solidifies at a uniform density in the casting space,
It is possible to obtain a water-sealed joint that does not cause cracks as in the prior art after firing.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a casting mold for forming the water seal joint 7 for the urinal 1 shown in FIG. 3, and FIG. 2 is a plan view thereof.

The casting mold 20 includes a lower mold 21 having a casting space 23 and an upper mold 22 which is provided on the upper surface of the casting space 23. The casting space 23 extends in the horizontal direction. A casting opening 24 is formed in the left side of the casting space 23 so as to penetrate vertically and penetrates the upper mold 22 and the lower mold 21. Is formed with a horizontal port 25 which opens horizontally to the casting space 23 side. Further, in the present embodiment, as shown in FIG.
It is open toward the corner of.

In a state where a plurality of the casting dies 20 having such a structure are vertically stacked and the casting ports 24, 24 are respectively connected to each other, the slurry is cast from the casting port 24 of the upper casting mold 20. Pour into inlet 24. The poured slurry flows into the casting space 23 from the lateral opening 25 in each casting mold 20, and is solidified and solidified in the casting space 23.

In the casting mold 20 of the present embodiment, the slurry flows into the casting space 23 through the lateral opening 25 at a substantially uniform density and deposits. Thereafter, the upper mold 22 is removed from the lower mold 21 and removed from the mold, and the water-sealed joint 7 formed in the casting space 23 is cut at the cut surface C at the boundary with the side opening 25 to obtain the water-sealed joint 7. As shown in FIG. 3, the water seal joint 7 is brought into contact with the cut surface C and pressed against the bottom plate 6, and the water seal joint 7 is integrally erected on the bottom plate 6. In this state, the entire urinal 1 is dried and then fired.

[0010] Even after firing, the water seal joint 7 formed by the casting mold 20 of the present embodiment has a uniform density, so that a good water seal portion S without cracks as in the prior art can be formed. Once formed, the water seal water W does not leak.

[0011]

According to the present invention, there is provided a water seal joint which is separately cast and formed to form a water seal portion of a urinal or the like, wherein the water seal joint has a casting space extending in a horizontal direction. By molding in a casting mold having a casting port into which the slurry flows from the side into the casting space, the slurry flows uniformly into the casting space because the slurry flows into the casting space from the side. A water-sealed joint is formed at a high density, and when the formed water-sealed joint is joined to a water-sealed portion of a urinal or the like, and then dried and fired, cracks such as those in the past occur. This has the effect that a good water seal portion that does not leak and does not leak water seal water can be formed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional configuration diagram of a casting mold for shaping a water-sealed joint.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a cross-sectional configuration diagram showing a state in which a molded water seal joint is joined to a water seal part of a urinal.

FIG. 4 is a sectional view of a conventional casting mold.

FIG. 5 is a plan view of FIG. 4;

FIG. 6 is a plan view showing a crack generated in a gate part of a conventional water-sealed joint.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Urinal 4 Leg wall 5 Hanging piece part 6 Bottom plate body 7 Water seal joint body 20 Casting mold 21 Lower mold 22 Upper mold 23 Casting space 24 Casting port 25 Side mouth C Cut surface S Water sealing part

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 63-41513 (JP, U) Japanese Utility Model Sho 63-41514 (JP, U) Japanese Utility Model Sho 63-41515 (JP, U) Japanese Utility Model Sho 63- 41516 (JP, U) Japanese Patent Publication 29-6577 (JP, B1) Japanese Patent Publication 35-652 (JP, B1)

Claims (1)

(57) [Claims] 1. A water seal joint which is separately cast and formed to form a water seal portion of a urinal or the like, wherein the water seal joint has a casting space extending in a horizontal direction, A method of casting a water-sealed joint, wherein the molding is performed in a casting mold having a casting port into which a slurry flows into a space from a side.