JPH07189324A - Flush toilet stool - Google Patents

Abstract

PURPOSE:To reliably discharge waste water or muck by effectively utilizing the flowing without requiring any operation in relation supply of cleaning water in a flush toilet stool. CONSTITUTION:Plural water injection holes 1c and 1d are bored in a rim water passing channel 1b formed around the upper end of a bowl part 2, and an almost inverse U-shaped passage is formed from a bottom part of the bowl part 2, and a drainage channel 3 capable of sealing water together with the inside of the bowl part 2 is provided, and a drainage port 4 of a base end part of the drainage channel 3 is arranged above the lowest level up to the drainage channel from the bowl part 4, and an opening area of the drainage port 4 occupied in sealing water is enlarged, and sealing water pushing-out force is increased. Since it is deviated to the center side of the bowl part 2, a distance up to a concentration point of cleaning water from the water injection holes is shortened, and a flowing loss is restrained, so that attenuation of flowing force of the cleaning water is eliminated. Since a level of the drainage port 4 is heightened and it is situated on the center side of the bowl part 2, the sealing water pushing-out force is increased, and the flowing loss is restrained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat-type flush toilet bowl, and more particularly to a flush toilet bowl having improved drainage of sewage and filth caused by washing water.

[0002]

2. Description of the Related Art As a stool-type flush toilet, a washdown type or a siphon washdown type has been widely used.

FIG. 8 is a vertical sectional view showing a conventional example of the flush toilet of these systems, and FIG. 9 is a plan view thereof.

In the figure, a water supply chamber 1a communicating with a wash water tank (not shown) is provided at the upper end of the body 1 of the flush toilet, and the water supply chamber 1a is provided at a rim water passage 1b formed around the upper end of the ball portion 2. Are connected. In the rim water passage 1b,
A small-diameter water spray hole 1c is provided in a portion facing the ball portion 2, and five large-diameter water spray holes 1d are provided in a portion farthest from the water supply chamber 1a as shown in FIG. Further, a substantially U-shaped drainage channel 3 is provided downstream of the ball portion 2, and the end of the drainage channel 3 is opened at the bottom of the main body 1 to form a discharge port 3a.

In the flush toilet having such a structure, the drainage channel 3
A trap is formed by the sealing water W determined by the highest position of the bottom wall of the. Then, the wash water from the wash water tank is supplied from the water supply chamber 1a to the rim water passage 1b and discharged toward the ball portion 2 from the small diameter and large diameter water injection holes 1c and 1d.

In this washing process, the washing water from the small diameter water spray hole 1c flushes the surface of the ball portion 2 above the sealing water W, and the washing water from the large diameter water spray hole 1d is concentrated at the point P shown in FIG. As it does, it flows into the sealed water W. And, mainly due to the strong flow of washing water from the large diameter water spray hole 1d,
The sealing water W is pushed out toward the drainage channel 3 side,
The cleaning water is discharged together with the dirt from the drainage channel 3 to the discharge port 3a.

[0007]

A drainage port 10 is located at a portion connecting a flow path from the ball portion 2 toward the drainage channel 3. The drainage port 10 is at the lowest level in the flow path extending from the ball portion 2 to the drainage channel 3, and the inner peripheral wall of the ball portion 2 forming the upper end and the left and right sides thereof rises at an angle of 50 ° or more. Therefore, when the length of the ball portion 2 in the front-rear direction is fixed, as compared with a design in which the inclination of the inner peripheral wall is gentle, from the point P where the washing water from the large diameter water spray hole 1d converges to the drain port 10. Will be longer.

When the drainage port 10 is provided at the lowest position, the opening area of the drainage port 10 is shown in FIG. 10 (BB in FIG. 8).
As shown in the vertical sectional view taken along the line), the ratio of the sealing water W in the ball portion 2 to the vertical section is relatively small.

If the distance from the point P where the washing water from the large-diameter water spray hole 1d is concentrated to the drain port 10 is long, the point P is
The momentum of the washing water concentrated on the water is easily attenuated by the time it is propagated to the drain port 10. Also, the washing water concentrated at the point P is the sealing water W.
Acts to push this out to the drainage channel 3 side,
As shown in FIG. 10, since the volume of the sealing water W is larger than that of the drainage port 10, the force of the wash water pushing the sealing water W is easily dispersed, and the magnitude of the action force that promotes the flow toward the drainage port 10 side. There is also a limit.

As described above, in the conventional flush toilet, since the drain port 10 is provided at the lowest level below the sealing water W, the sealing water W
There is a tendency that the flow of wash water that acts to press is not effectively utilized. Therefore, in order to eliminate the insufficient cleaning, it may be necessary to take measures such as increasing the supply pressure of the cleaning water or increasing the supply amount.

The problem to be solved in the present invention is to provide a flush toilet which can effectively discharge sewage and filth by effectively utilizing the flow of the rinsing water without requiring any operation. is there.

[0012]

SUMMARY OF THE INVENTION According to the present invention, a rim water passage is formed around an upper end of a ball portion, a rinsing water passage is connected to a wash water supply passage, and a plurality of water sprays are opened to the ball portion side. What is claimed is: 1. A flush toilet bowl having a drainage channel formed by forming a hole and forming an approximately inverted U-shaped flow path from the bottom of the ball section to enable water sealing together with the inside of the ball section, the base end of the drainage path. The drainage port of is located above the lowest level from the ball portion to the drainage channel.

The drainage port may be arranged so as to be biased toward the center side of the ball portion, and the drainage port may be biased above the minimum level from the ball portion to the drainage channel and toward the center side of the ball portion. It may be positioned so as to be located.

[0014]

[Operation] By positioning the drainage outlet at the base end of the drainage channel above the minimum level from the ball part to the drainage channel, the bulk of the vertical cross section of the sealing water pushed into the drainage channel is reduced, and The flow force of the wash water from the water spray hole that pushes toward the drainage channel acts strongly to push out the sealed water.

Further, when the drainage port is located so as to be biased toward the center side of the ball portion, the washing water from the water spray hole (large diameter water spray hole) on the tip side of the main body, which mainly pushes the sealing water to the drainage channel side, becomes the sealing water. The distance between the reaching position and the drain port is shortened, and the loss of flow energy of the wash water can be suppressed.

Furthermore, if the level of the drainage port is set higher than the minimum level and biased toward the center of the ball portion, the previous action can be combined to suppress the loss of flow energy of the wash water and at the same time seal the water. The pushing force is also increased.

[0017]

1 is a longitudinal sectional view showing an embodiment of the flush toilet of the invention according to claim 1 of the present application, and FIG. 2 is a cutaway plan view.

The flush toilet of the illustrated example is different from that of the conventional example only in the structure between the drainage channel and the ball portion, and the same members are designated by common reference numerals and detailed description thereof is given. Is omitted.

The size of the main body 1 is the same as that shown in the conventional example, and the drainage port 4 facing the side of the large diameter water spray hole 1d is located at the bottom of the ball portion 2. The drainage port 4 faces the ball portion 2 with its opening axis inclined obliquely upward toward the tip side (right end side in FIG. 1) of the toilet body 1, and is closer to the sealing water W level side than the conventional example. Is formed to be close to. In addition, the drainage channel 3 downstream of the drainage port 4 forms a trap channel that bends upward downward once, and the ball portion 2
The lowest level in the flow path from the outlet to the outlet 3a is the drainage path 3
With the shape contained in.

That is, as is clear from comparison with the conventional structure, the drainage port 4 is at a level close to the sealing water W surface side, and the distance from the sealing water W surface to the drainage port 4 is short. Therefore, since the level of the drainage port 4 is higher than the opening area of the drainage port 4 immersed in the sealing water W, the vertical cross-sectional area occupied by the sealing water W is smaller than that of the conventional structure of FIG. .

Here, the washing water is supplied from the large-diameter water spray hole 1d so as to concentrate at the point P on the surface of the sealing water W, and the concentrated flow of the washing water reaching the point P drains the sealing water W into the drainage channel 3. When pushed to the side, the vertical cross-sectional area occupied by the sealing water W can be considered as the action area pushed by the concentrated flow of washing water. Therefore, when the flow rate and strength of the concentrated flow of the wash water are constant, compared to the large vertical cross-sectional area of the sealing water W in the conventional structure shown in FIG. Since the vertical cross-sectional area of the sealing water W is smaller than that of the conventional structure, the acting force as a pressure received by the entire sealing water W becomes strong. Therefore, the force for pushing the sealing water W toward the drain port 4 side is also increased.

As described above, by raising the drainage port 4 not to the lowest level of the drainage channel 3 but to the W level side of the sealing water, the pushing force of the sealing water accumulated in the drainage channel 3 can be increased. It is possible to increase the pushing force with respect to the entire wash water and dirty water accumulated in the ball portion 2 and the drainage channel 3.

Therefore, when the washing water is supplied, the force pushing the sealing water W is effectively transmitted to the flow to the drainage port 4, so that strong washing can be performed and the washing is not insufficient and stable. The cleaning done is maintained.

3 and 4 show one embodiment of the flush toilet of the invention according to claim 2 of the present application, and FIG. 3 is a longitudinal sectional view thereof.
FIG. 4 is a cutaway plan view.

Also in this example, the size of the main body 1 is the same as that shown in the conventional example, and the drain port 4 facing the large diameter water spray hole 1d side is located at the bottom of the ball portion 2. The drainage port 4 has a ball portion 2 that forms the upper end and the left and right sides thereof.
The inner peripheral wall 2a is formed in a portion extending toward the center of the ball portion 2. Further, the drainage channel 3 connected from the drainage channel 4 has the lowest level at the drainage channel 4 and forms a trap channel that bends upward downward once between the ball portion and the drainage channel 3. There is.

That is, as is apparent from comparison with the conventional structure, the lower end portion of the inner peripheral wall 2a extending downward from the upper end of the ball portion 2 is projected in the direction of the large diameter water spray hole 1d, so that the large diameter water spray hole 1d Water W where the washing water of
The distance between the point P on the surface and the drainage port 4 can be shortened. Therefore, the washing water is sealed with water W from the large-diameter water spray hole 1d.
When the sealing water W is supplied to the point P on the surface and the sealing water W is pushed to the drainage channel 3 side, the flow loss of the wash water decreases as much as the distance to the drainage port 4 is shortened. Therefore, the drainage port 4
The extruding force of the sealing water W to the water is increased.

As described above, the large diameter water spray located on the center line of the main body 1 is provided in the case where the drain ports 4 are provided at the center side of the ball portion 2 so that the drain ports 4 have the same size. The fan-shaped internal angle (indicated by α in FIG. 4) formed by the line segment drawn from the hole 1d to both ends in the width direction of the drainage port 4 is larger than the internal angle (indicated by β in FIG. 9) in the case where the conventional structure has a long distance. Also grows. If the point P where the washing water from the large-diameter water spray hole 1d is concentrated is in this fan-shaped region, it exerts an action force to push the sealing water W toward the drainage port 4 side, so that there is some displacement of the point P. Can also absorb this. Therefore, even if there is some molding error in the large diameter water spray hole 1d, the acting force on the sealing water W can be secured and stable cleaning can be maintained.

5 to 7 show an embodiment of the invention according to claim 3 of the present application. FIG. 5 is a vertical sectional view of the toilet body, FIG. 6 is a cutaway plan view, and FIG. 7 is A- of FIG. It is a longitudinal cross-sectional view taken along the line A.

In the present example as well, the size of the main body 1 is the same as that shown in the conventional example, and the drainage port 4 facing the large diameter water spray hole 1d side is located at the bottom of the ball portion 2. The drainage port 4 is formed in a portion in which the inner peripheral wall 2a of the ball portion 2 forming the upper end and the left and right sides thereof is extended substantially horizontally toward the large diameter water spray hole 1d side. Further, the drainage channel 3 downstream of the drainage channel 4 forms a trap channel that bends upward once downward, and the lowest level in the channel from the ball portion 2 to the discharge channel 3a is in the drainage channel 3. With the included shape.

That is, similarly to the example of FIGS. 3 and 4, a point P on the sealing water W surface where the washing water from the large diameter water spray hole 1d is concentrated.
The distance between the drainage port 4 and the drainage port 4 is short, and the flow loss is reduced as the distance to the drainage port 4 is shortened. Further, similarly to the example of FIGS. 1 and 2, the drainage port 4 immersed in the sealing water W
The vertical cross-sectional area occupied by the sealing water W is smaller than that of the conventional structure because the level of the drainage port 4 is higher than that of the conventional sealing structure as shown in the comparison between FIG. 7 and FIG. The acting force as the pressure received by the person becomes stronger.

In this way, when the washing water is discharged from the large-diameter water spray hole 1d, the force pushing the sealing water W is effectively transmitted to the flow to the drainage port 4, so that strong washing is possible and washing is possible. There is no shortage.

Further, as in the examples of FIGS. 3 and 4, by shortening the distance from the large diameter water spray hole 1d to the drainage port 4, even if there is some molding error in the large diameter water spray hole 1d, water sealing is performed. W
It is possible to secure the action force against and maintain stable cleaning.

[0033]

According to the present invention, the pushing force of the wash water from the water spray hole can be made effective by appropriately positioning the drain port without performing an operation such as increasing the supply pressure or flow rate of the wash water. By using it, the sealed water can be quickly discharged together with sewage and filth.

Further, since the drainage power of the wash water is improved,
Even if the amount of sealed water is increased, the discharge will not be affected, so
The water sealing level can be increased to increase the water sealing area in the ball portion, and the specifications of the toilet bowl can be diversified.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of the flush toilet of the invention according to claim 1 of the present application.

2 is a cutaway plan view of the flush toilet of FIG. 2. FIG.

FIG. 3 is a vertical cross-sectional view showing an embodiment of the flush toilet bowl of the invention according to claim 2 of the present application.

FIG. 4 is a cutaway plan view of the example of FIG.

FIG. 5 is a longitudinal sectional view showing an embodiment of the flush toilet bowl of the invention according to claim 3 of the present application.

FIG. 6 is a cutaway plan view of the example of FIG.

7 is a vertical sectional view taken along the line AA of FIG.

FIG. 8 is a vertical cross-sectional view of a toilet bowl having a conventional structure.

9 is a plan view of the toilet bowl of FIG. 8. FIG.

10 is a vertical sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1 main body 2 ball part 1a water supply chamber 2a inner peripheral wall 1b rim water passage 3 drainage channel 1c small diameter water spray hole 3a discharge port 1d large diameter water discharge hole 4 drainage port

Claims (3)

[Claims] 1. A rim water passage is formed around an upper end of a ball portion, a water supply passage for washing water is connected to the rim water passage, and a plurality of water spray holes opening to the ball portion side are opened to form a rim water passage in the ball portion. What is claimed is: 1. A flush toilet having a drainage channel that forms a substantially inverted U-shaped flow path from the bottom to allow water to be sealed together with the inside of the ball section, wherein the drainage port at the base end of the drainage path is the ball section. A flush toilet located above the minimum level from the drain to the drain. 2. A rim water passage is formed around the upper end of the ball portion, a wash water supply passage is connected to the rim water passage, and a plurality of water spray holes opening to the ball portion side are opened to form a rim water passage. What is claimed is: 1. A flush toilet having a drainage channel that forms a substantially inverted U-shaped flow path from the bottom to allow water to be sealed together with the inside of the ball section, wherein the drainage port at the base end of the drainage path is the ball section. A flush toilet bowl that is located so as to be biased toward the center of the toilet. 3. A rim water passage is formed around the upper end of the ball portion, a wash water supply passage is connected to the rim water passage, and a plurality of water spray holes opening to the ball portion side are opened to form a rim water passage. What is claimed is: 1. A flush toilet having a drainage channel that forms a substantially inverted U-shaped flow path from the bottom to allow water to be sealed together with the inside of the ball section, wherein the drainage port at the base end of the drainage path is the ball section. A flush toilet bowl located above the minimum level from the drainage channel to the drainage channel and biased toward the center of the ball portion.