JPH08120741A - Bowl structure of toilet - Google Patents

Abstract

PURPOSE: To smooth drainage so that a toilet bowl can be always washed clean by making the step of a front inner peripheral surface higher than a water level lifted by water supply, and forming the step of a rear inner peripheral surface in a position near a normal water level. CONSTITUTION: The step 28a of a front inner peripheral surface 28 constituting the upper edge 32 of the bottom 31 of a toilet bowl 24 is so formed to be higher by a predetermined height h1 than a water level (b) lifted by the supply of water into the toilet bowl 24. Therefore, even if the surface of the lifted water level is exerted with a swirl-enlarging force by a swirl, converted into a swirling surface in the form of a curved surface and tends to rise above the front inner peripheral surface 28, the surface of the lifted water level is prevented from rising above the surface 28, and no dirt remains on the front inner peripheral surface 28. The step 30a of the rear inner peripheral surface 30 of the toilet bowl 24 is made lower by a predetermined height h2 than the lifted water level (b) and formed in a position near a normal water level (a), and the rear inner peripheral surface 30 is elongated. Therefore, a vortex forming in a portion downstream of flow is remarkably decreased, thereby allowing water to smoothly drain into a trap 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet bowl configured to supply wash water from a wash tank through a wash water distributor, and more particularly to a toilet bowl structure of the toilet bowl.

[0002]

2. Description of the Related Art Conventionally, as the structure of this type of toilet 1,
For example, there is one shown in FIG. 4 to FIG. 6, in which the toilet bowl 1 is formed around the upper four laps of the toilet bowl 4 from the water supply section 3 at the rear portion of the toilet bowl body 2 through the cleaning water distributor or the like. The water passage 6 of the rim 5 is connected to the water passage 6
The groove portion 7 is formed in a slit shape over the entire circumference of the toilet bowl 4
In the toilet 1 configured to supply water toward the inner surface of the toilet bowl, the front inner peripheral surface 8 of the inner peripheral surface of the toilet bowl 4 of the toilet bowl 1 is formed into a gentle curved surface, and the left and right side inner peripheral surfaces are formed. 9 is formed on a relatively steep inclined surface, and further, the rear inner peripheral surface 10 is formed on a steeper inclined surface than the side inner peripheral surface 9.
At the upper part of the bottom portion 11 of the toilet bowl 4 formed by 9, 10, the inner peripheral surfaces 8, 9, 10 are substantially equal to the step portion 8.
An edge portion 12 composed of a, 9a and 10a is formed, the bottom portion 11 communicates with a trap 13, and a water surface 14 is always stored between the bottom portion 11 and the trap 13 at the water level a. In the toilet bowl 4 formed in this way,
When the washing water is supplied from the washing tank, for example, the washing water is discharged to the inner peripheral surfaces 8, 9, 10 of the toilet bowl 4 in this water passing process, and along the rear inner peripheral surface 10 from the water supply portion 3 side. It is provided so as to discharge the flux 16 toward the reservoir surface 14.

[0003]

However, in the toilet bowl 4 thus formed, when flush water is supplied from the water supply tank, the water level a of the reservoir surface 14 is, for example, the bottom portion 11.
Step portions 8a, 9a of the inner peripheral surfaces 8, 9, 10 of the upper edge 12 of
When the swirl flow is not given to the water level b of 10a, and when the swirl is given by the water flow from the water passage 6, the water level b is swirled and expanded as shown by the two-dot chain line in the figure to form a curved surface. It becomes the turning surface 17, and in particular, since the front inner peripheral surface 8 is formed as a gently sloping surface, the turning surface 17 rides on the front inner peripheral surface 8 greatly.
For this reason, there is a problem that filth may remain on the front inner peripheral surface 8, and the flux 16 discharged along the rear inner peripheral surface 10 has a short length of the rear inner peripheral surface 10. In addition, since the height h between the stepped portion 10a and the water surface 14 is relatively high and is formed in an undercut shape, when the flux 16 is discharged, a vortex 18 is generated in the downflow portion. Therefore, there is a problem that the outflow to the trap 13 side is obstructed.

The present invention has been made in order to solve the above-mentioned conventional problems. When the flush water is supplied to the toilet bowl, the flush water is not swirled and expanded to the inner peripheral surface, and the trap is provided. It is an object of the present invention to provide a toilet bowl structure in a toilet bowl that can smoothly flow to the side.

In order to solve the above technical problems, the present invention provides
In the toilet bowl of the toilet bowl, the front inner circumferential surface that constitutes the upper edge of the bottom, the left and right side inner circumferential surfaces, and the rear inner circumferential surface, in particular, the front inner circumferential step It is configured to be formed on a stepped portion that is at a predetermined height position above the head level due to water supply to the toilet bowl, and the edge of the bottom of the toilet bowl is at a predetermined height above the head level due to water supply. 1 is a toilet bowl structure in a toilet bowl having a structure in which a step portion of a front inner peripheral surface which is formed high at a position and a step portion of a rear inner peripheral surface corresponding to the step portion are formed to be lower than a head water level due to water supply.

[0006]

With the above structure, the swirling surface of the head level due to the water supply to the toilet bowl swirls substantially within the upper edge of the bottom.

[0007]

1 is a plan view of a toilet bowl 21, FIG. 2 is a longitudinal sectional view thereof, and FIG. 3 is a transverse sectional view thereof. Connects the wash water from the wash tank to the water passage 26 of the rim 25 formed on the upper four laps of the toilet bowl 24 from the water supply portion 23 at the rear of the toilet body 22 via a wash water distributor or the like. A groove portion 27 is formed in a slit shape over the entire circumference thereof so as to supply water toward the inner surface of the toilet bowl 24.

The front inner peripheral surface 28 of the inner peripheral surface of the toilet bowl 24 of the toilet bowl 21 is formed into a gentle curved surface as in the conventional case.
Further, the left and right side inner peripheral surfaces 29 are formed to have relatively steep slopes, and the rear inner peripheral surface 30 is formed to have steeper slopes than the side inner peripheral surfaces 29. An edge portion 32 is formed by the inner peripheral surfaces 28, 29, 30 on the bottom portion 31 of the toilet bowl 24 formed by 30, and the bottom portion 31 communicates with the trap 13, and the bottom portion 31 and the trap 13 are formed. In the same manner as in the conventional case, the water surface 14 is constantly stored at the water level a between and. The volume of the stored water level a is the same as the conventional one. When the flush water is supplied from the flush tank to the toilet bowl 21 provided in this way as in the conventional case, the flush water is passed from the water feed section 23 side to the water passage 26 side, and in this flushing process, the toilet bowl 24 As shown in the drawing, the swirling flow 15 is discharged to the inner peripheral surfaces 28, 29, 30 of the
From the water supply part 23 side along the rear inner peripheral surface 30
It is provided so that the flux 16 may be discharged toward. Further, when the cleaning water is supplied, the water level a of the reservoir surface 14 is formed to rise to the water level b (when the swirl flow 15 is not applied) as in the conventional case.

In the toilet bowl 24 thus formed,
The edge portion 32 formed on the upper portion of the bottom portion 31 is formed as shown in FIG. That is, the step portion 28a forming the edge portion 32 of the front inner peripheral surface 28 of the toilet bowl 24 has the swirling flow 1
At a predetermined height h1 from the water level b where 5 is not given,
The curved revolving surface 17A generated when the revolving flow 15 is applied is formed at a height position where it does not ride on the front inner peripheral surface 28 or at a position slightly higher than that.

Further, the step portion 30a forming the edge portion 32 on the rear inner peripheral surface 30 side is formed at a position lower by a predetermined height h2 than the position of the water level b where the swirling flow 15 is not given, and the rear portion inside Since the peripheral surface 30 is formed to be long, the step portion 30a of the rear inner peripheral surface 30 is formed at a position close to the water level a of the normal reservoir water surface 14 of the bottom portion 31. The left and right side guide surfaces 29 are formed in the same manner as the conventional one.

In the toilet bowl 24 thus formed, for example, when washing water is supplied from the washing tank, the washing water is passed from the water supply section 23 to the rim 25 through the washing water distributor (not shown). Water is supplied to the waterway 26. In this water supply process, the cleaning water of the swirling flow 15 in the arrow direction is discharged from the slit-shaped groove 27 formed in the water passage 26 toward the inner peripheral surfaces 28, 29, 30 of the toilet bowl 24.

The water level "a" on the reservoir surface 14 is lifted to the water level "b" by the flushing of the wash water into the toilet bowl 24, and the swirling flow 15 is given to the inner peripheral surfaces 28, 29, 30 of the toilet bowl 24. The sump water surface 14 lifted to the same water level b becomes a curved revolving surface 17A to try to ride on the gentle front inner peripheral surface 28 side of the inclined surface, but to the front inner peripheral surface 28 side. Is a predetermined height h1 from the position of the water level b to which the swirl flow 15 is not given, and the curved swirl surface 17A generated when the swirl flow 15 is given is high enough not to ride on the front inner peripheral surface 28. Since the stepped portion 28a is formed at a slightly higher position than that, the revolving surface 17A does not ride up.

On the rear inner peripheral surface 30 side, the flux 16 is discharged along the inner peripheral surface 30. The stepped portion 30a formed on the rear inner peripheral surface 30 is lifted. It is formed at a position h2 lower than the water level b, and has the rear inner peripheral surface 3
Since 0 is formed long and the step portion 30a is formed at a position close to the normal water level a, the generation of the vortex flow 18 generated in the downflow portion can be significantly reduced by this flux 16.

As described above, in the toilet bowl 24 of the toilet bowl 21 of this embodiment, the front inner peripheral surface 28, the left and right side inner peripheral surfaces 29 and the rear inner peripheral surface 30 which constitute the upper edge 32 of the bottom 31 thereof.
Among the steps 28a, 29a, 30a of the above, in particular, the step 28a of the front inner peripheral surface 28 is formed at a predetermined height h1 from the head level b due to the water supply to the toilet bowl 24.
5, the lifting surface of the water level b receives the swirl expansion force to become the curved swirling surface 17A, which can be prevented even when trying to ride on the front inner peripheral surface 28, and the front inner peripheral surface 28 can be prevented from getting dirty. It can be prevented from remaining. Further, on the rear inner peripheral surface 30 side of the toilet bowl 24, the step portion 30a thereof is provided.
Is formed at a position h2 lower than the head water level b, the rear inner peripheral surface 30 is formed long, and the stepped portion 30a is formed at a position close to the normal water level a. Since the eddy current 18 generated in the downflow portion can be significantly reduced, the drainage to the trap 13 side can be smoothly performed, and the toilet bowl 24 can be always beautifully washed by the synergistic effect of these.

[0015]

As described above, according to the present invention, in the toilet bowl formed as described above, the step portion of the front inner peripheral surface which constitutes the upper edge of the bottom portion has a predetermined height higher than the head water level due to the water supply to the toilet bowl. As a result of the swirling flow, the lifting surface at the head water level receives a swirling expansion force and becomes a curved swirling surface, and even if it tries to ride on the front inner peripheral surface, this can be prevented, and the front inner peripheral surface can be prevented. It is possible to prevent filth from remaining on the surface.
Also, on the rear inner peripheral surface side of the toilet bowl, since the step is formed at a position lower than the head water level and close to the normal water level, and the rear inner peripheral surface is formed long, the flux It is possible to significantly reduce the vortex generated in the downflow portion, to smoothly discharge water to the trap side, and to synergize these effects, which makes it possible to clean the toilet bowl always beautifully.

[Brief description of drawings]

FIG. 1 is a plan view of a toilet bowl.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a transverse sectional view of the same.

FIG. 4 is a plan view of a conventional toilet bowl.

FIG. 5 is a longitudinal sectional view of the same.

FIG. 6 is a cross-sectional view of the same.

[Explanation of symbols]

 17A Swinging surface 21 Toilet bowl 22 Toilet body 23 Water supply section 24 Toilet bowl 25 Rim 26 Water passage 27 Slit-shaped groove 28 Front inner peripheral surface 29 Side inner peripheral surface 30 Rear inner peripheral surface 28a, 29a, 30a Step 31 Bottom 32 Edge a Normal water level of the reservoir surface b Head water level due to water supply

Claims (2)

[Claims] 1. In a toilet bowl of a toilet bowl, among the stepped portions of the front inner peripheral surface, the left and right side inner peripheral surfaces and the rear inner peripheral surface, which constitute the upper edge of the bottom, in particular, the front inner peripheral surface thereof. A toilet bowl structure in a toilet bowl, in which the stepped portion of the surface is formed in a stepped portion that is at a predetermined height position above the head level due to water supply to the toilet bowl. 2. The bottom edge of the toilet bowl is provided with a step portion of the rear inner peripheral surface corresponding to a step portion of the front inner peripheral surface which is formed at a predetermined height higher than the head water level due to water supply. The toilet bowl structure in the toilet bowl according to claim 1, wherein the toilet bowl structure is formed to be lower than the head water level.