JP2719435B2 - Structure of ceramic washbasin - Google Patents

Description

The present invention relates to the structure of a ceramic washbasin attached to the underside of a countertop made of artificial marble or natural marble, such as a vanity table, and more particularly to the overflow structure thereof. It is.

[Prior art] In this type of ceramic washbasin, an overflow port is provided on an inner periphery of an upper portion of the washbasin in order to prevent water from overflowing when the water is full, and this overflow port is provided. It is connected to the drain at the bottom. The overflow port and the drain port are communicated with each other through an overflow bag having a hollow inside. When forming this hollow overflow bag, the plaster mold is filled with mud and cured by dehydration, and the uncured mud that is thick and not hardened to the inside is removed and the overflow bag is filled. Part is formed.

Conventionally, an elliptical or elliptical washbasin 1 when viewed from a plane
An overflow bag portion 3 for communicating the drain port 2 with the overflow port is provided at the short end of the basin 1 or at an oblique position between the short end and the long end. Was. In order to remove uncured slurry when the overflow bag 3 is formed, the positional relationship of the washbasin 1 with respect to the plaster mold 4 must be as shown in FIG. In other words, the mud outlet 5 for removing the mud with the mold 4 standing up is positioned as low as possible.

[Problems to be Solved by the Invention] However, in the case of a washbasin having a conventional structure, when the mold is set up with a mold 4 in order to remove the mud for forming the hollow portion of the overflow bag portion 3, FIG. As shown in the figure, the longitudinal direction of the basin 1 is obliquely oriented, and the wide portion of the mold 4 needs to be located at the lower part. Is the narrowest), and there is a problem that the space for installing the molding die 4 for discharging the sludge is widened.

The present invention has been made in view of the above description, and an object of the present invention is to simplify the structure of a mold,
Providing the structure of a ceramic washbasin bowl that does not require any space for installation even if the mold is set up when forming the hollow part of the overflow bag portion by discharging the mud after forming with the forming mold To be.

[Means for Solving the Problems] In order to achieve the above object, the structure of the ceramic basin according to the present invention comprises a drain bowl 2 at the bottom and a drain at the bottom in an elliptical or elliptical basin 1 when viewed from above. Overflow bag portion 3 for connecting port 2 with overflow port 6 in the upper inner periphery
Are provided so as to be deviated in the same direction N from the central portion M in the width direction of the wash basin 1, and a part of the upper portion of the overflow bag portion 3 is positioned above the longitudinal end of the wash basin 1. It is characterized by comprising.

[Operation] When a part of the overflow bag part 3 is located above the longitudinal end of the wash basin 1, the uncured slurry is formed by the molding die 4 and the uncured slurry is discharged. The structure can be set up so that the direction is vertical, and the width of the molding die 4 at this time is narrowed to save space for installation. In addition, since the discharge port 5 can be provided at the lowermost portion, the discharge of the slurry can be performed smoothly.

[Embodiment] The washbasin 1 is formed in an oblong or elliptical shape when viewed from a plane, and a flange 7 is provided at an upper end thereof so as to protrude horizontally over the entire circumference. A drain port 2 is provided at the bottom of the wash bowl 1 so as to be eccentric with respect to the center of the wash bowl 1 and biased toward one end in the longitudinal direction. An overflow port 6 is provided on the inner periphery, and the overflow port 6 and the drain port 2 are communicated with each other by an overflow bag portion 3 having a hollow inside. As shown in FIGS. 1 (a) and 1 (b), the drain port 2 at the bottom and the overflow bag portion 3 are provided so as to be deviated in the same direction M from the center M in the width direction of the washbasin. The upper portion of the overflow bag portion 3 is made wider so that a part of the overflow bag portion 3 is located at the longitudinal end of the wash basin 1. The washbasin 1 configured as described above is formed of pottery. The washbasin 1 is formed in a predetermined shape using a plaster mold 4 and then fired. It is used by being attached to the lower surface of the artificial marble or natural marble counter of the washbasin 1.

The plaster mold 4 for molding the washbasin 1 is configured as shown in FIG. Mold 4 is upper mold 4a and lower mold
4b, a cavity 8 is formed between the upper mold 4a and the lower mold 4b so as to conform to the shape of the washbasin 1. When the cavity 8 is filled so as to fill the cavity 8, the gypsum mold 4 absorbs water and the slurry is dehydrated and hardened. When a certain period of time elapses and the whole is hardened, the unhardened slurry inside the thick overflow bag portion 3 is discharged. At this time, the mold 4 is set up as shown in FIG. 3 (the longitudinal direction of the washbasin 1 is vertical), and the mud outlet corresponding to the lowermost part of the overflow bag 3 is formed. The uncured slurry inside the overflow bag 3 is discharged from 5 to form a hollow portion. This drain port 5
Also serves as a slurry inlet 10, so that the cavity 9 can be filled upside down with FIG. After discharging the uncured slurry from the drain port 5, the holes are closed. As shown in FIG. 3, the mold 4 can be set up with a narrow width when draining the mud, so that no space is required for installation. Further, the mud can be discharged from the lowermost discharge port 5, so that the mud can be discharged smoothly. Also, since the left and right sides of the molding and the sludge can be made substantially symmetrical, the balance between the left and right sides is good, and the molded product is extremely less deformed and cracked. After being molded by the molding die 4, it is dried and fired as necessary to form the ceramic washbasin 1.

[Effect of the Invention] As described above, according to the present invention, a drain port at the bottom and an overflow bag portion communicating the overflow port at the bottom with the overflow port at the upper inner periphery are formed in the same direction from the center in the width direction of the washbasin. Since the bag is biased, the overflow bag can be extended straight from the bottom drain port along the outer periphery of the washbasin in a vertical direction. When the wash bowl is formed by molding, it is easy to form the mold portion of the overflow bag portion, and the structure of the mold can be simplified. Also, since the upper part of the overflow bag is located at the upper part of the longitudinal end of the wash basin, the uncured mud in the overflow bag is removed by molding with a mold. When the mold can be set up so that the longitudinal direction of the washbasin is vertical, it can be set up so that the width of the mold can be narrowed, and it can be set up when setting up the mold for sludge discharge. It does not take up space, and since the sludge can be discharged from the bottom, the sludge can be discharged smoothly, resulting in improved molding efficiency.
Further, when forming and discharging the sludge, it can be made substantially symmetrical, so that the right and left sides are balanced and deformation and cracks are reduced.

[Brief description of the drawings]

1 (a) and 1 (b) are a plan view and a side view of one embodiment of the present invention, FIG. 1 (c) is a sectional view taken along line AA 'of FIG. 1 (a), and FIG. ) Is a bottom view of the above, FIG. 2 (a) is a cross-sectional view of the same mold, FIG. 2 (b) is a front view of a wash bowl for explaining a shape of a cavity of the same mold, and FIG. FIG. 2C is a cross-sectional view of the molding die taken along the line BB ′ in FIG. 2B, and FIG. 3 is an explanatory view for explaining the positional relationship between the molding die and the wash basin when the same is drained. FIG. 4 is an explanatory view for explaining a positional relationship between a molding die and a basin in a conventional example, wherein 1 is a basin, 2 is a drain port, 3 is an overflow bag portion, and 6 is an overflow port.

Claims (1)

(57) [Claims] 1. An oval or elliptical washbasin viewed from a plane, wherein a bottom drain port and an overflow bag portion communicating the bottom drain port with an overflow port on the upper inner periphery are formed in a width direction of the washbasin. And a part of the upper part of the overflow bag part is located above the longitudinal end of the wash basin. Construction.