JP2798193B2 - Flush toilet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet. More specifically, the present invention relates to a flush toilet that prevents the attachment of dirt to the bowl surface of a toilet bowl and enables use in a clean state.

[0002]

2. Description of the Related Art Conventionally, there are known flush toilets of various designs and structures, such as stool-type flush toilets. These flush toilets are, for example, siphon-type flush toilets depending on the form of waste and flush water discharged after use. Siphon jet type, siphon
It is classified into vortex type, wash-out type, blow-out type, etc.

[0003] Of these, for example, in the case of a flush-type flush toilet, as shown in FIG.
A rim water passage (a) is provided on the inner periphery of the upper end of the rim, and a spray hole (c) is provided on the entire lower surface of the rim water passage (a) so that the washing water is discharged. Since the rim water passage (a) communicates with the water storage tank and the like via the water supply chamber (d) and the water supply port (e), for example, by operating a drainage lever attached to the water storage tank, the rim water passage (a) is operated. The flush water supplied in (a) is discharged from the spray hole (c) as shown by the solid line arrow in the figure, and the ball surface (f) of the toilet bowl is washed away. Then, the waste water is discharged from the discharge port (g) together with the stored water (g) as shown by the broken line arrow in the figure by the water force of the washing water.

On the other hand, in the case of a siphon-type or siphon-jet type flush toilet, for example, as in a siphon-jet type flush toilet illustrated in FIG. 8, a method of draining flush water is the same as the above-mentioned flush type. However, the amount of the accumulated water (g) is increased, the ball surface (f) is washed away by the accumulated water (g), and the discharging power of the waste is increased by using the siphon action, and as a result, the cleaning power is increased. ing.

[0005] As described above, the conventional flush toilets differ in the form of discharge of the wash water and the dirt, but the method of discharging the wash water is as described above, in which the water is supplied from the water storage tank or the like to the rim water passage (a). It is almost common in that water is discharged from the water outlet (c).

[0006]

However, any conventional flush toilet has a problem to be solved in terms of discharging and cleaning waste. That is,
For example, in the case of the flush toilet illustrated in FIG. 7, since the waste is discharged only by the water level of the cleaning water, the cleaning water discharged from the water injection hole (c) drives the ball surface (f). It is desirable for the water to flow well and to run down like hitting the surface of the pool water. Therefore, the ball surface (f)
Is the ball surface (f) near the surface of the washing water (g)
It is designed to jump over and run down. However, in such a washing water flow-down method, since the washing water jumps over the ball surface (f), there is a drawback that the dirt adhering to the ball surface (f) cannot be completely washed away. .

[0007] Also, in the case of the siphon type toilet bowl illustrated in Fig. 8, in common with the above-mentioned flush type, since the bowl surface of the toilet bowl is usually dry, dirt easily adheres thereto, and the water level of the flush water increases. May not be removed. For this reason, in order to eliminate discomfort due to the remaining attached matter, wash the toilet bowl before use and wash the ball surface (f).
It required troublesome work such as wetting (ka ') or removing paper.

[0008] Further, if dirt adheres, it must be cleaned with a toilet stool or the like and washed off with washing water. However, such a cleaning operation is troublesome and uses a large amount of washing water, so that it is not economically preferable. On the other hand, in recent years, as a solution to such a problem of the conventional flush toilet, a toilet flushing device provided with a means for forming a water film on a ball surface (f) (f) before use (Japanese Patent Publication No. Hei 2- No. 51015).

However, in the case of this apparatus, the flush water for forming the water film and the flush water for ordinary wastewater drainage are the same in a water supply system, for example, the water injection hole (FIG. 7 and FIG. 8). C), it is necessary to supply a large amount of high-pressure cleaning water in order to spread the cleaning water and form a water film since the cleaning water is discharged, which is not preferable in terms of energy saving and economy. . Further, since the washing water is discharged from the same water injection hole (c) by different control means, there has been a problem that the structure of the apparatus, including the pipes, must be large and complicated.

[0010] The present invention has been made in view of the above circumstances, solves the drawbacks of the conventional flush toilet, can form a water film on the ball surface with an appropriate amount of water,
It is an object of the present invention to provide a flush toilet with a simple structure that is excellent in economic efficiency and can effectively prevent the attachment of waste.

[0011]

According to the present invention, a water film is formed on a ball surface by spraying flush water along a toilet bowl inner wall from a nozzle communicating with a water storage tank. A flush toilet, comprising: a first flushing means; and a second flushing means for supplying water from a water storage tank and discharging wastes from the toilet.

In a preferred embodiment of the flush toilet of the present invention, a water guide groove is provided on the inner wall of the bowl.

[0013]

In the flush toilet of the present invention, a water film is formed on the bowl surface of the toilet bowl by the first cleaning means. For this reason, adhesion of dirt to the ball surface is effectively prevented. The first cleaning means communicates with the water storage tank in the same manner as the second cleaning means for discharging wastes from the toilet, and each of them is formed as a separate pipe water supply channel, and is cleaned from the discharge nozzle of the independent means. Spurts water. For this reason, it is not necessary to use an excessive amount of flush water for the first flushing means unlike the conventionally known toilet bowl. In addition, the formation range of the water film can be controlled by adjusting the amount of water. The range of formation of the water film by the first cleaning means can be more easily controlled by the water guide groove provided on the inner wall of the ball.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The flush toilet of the present invention will be described in more detail. FIG. 1 is a side sectional view showing an embodiment of a flush toilet of the present invention. For example, as shown in FIG. 1, in the flush toilet of the present invention, a water storage tank (2) is attached to an upper rear portion of a toilet body (1), and a body case (3) is provided in front of the water storage tank.
And a toilet seat (4) and a toilet lid (5) fixed to the body case (3) so as to be openable and closable.

The body case (3) contains a pump (6), a solenoid valve (7) or other automatic control means, and the body case (3) or the toilet seat (4) or the toilet lid (5). Is provided with a sensing means such as a pressure sensor for detecting the use of the toilet. Pump (6) in body case (3)
Is connected to the water storage tank (2) by the connection hose (8a), and is supplied to the nozzle (10) provided on the inner wall (9) of the toilet bowl through the solenoid valve (7) and the connection hose (8b), and the washing water is supplied. It discharges.

The discharge of the washing water from the nozzle (10) will be described. For example, when the sensing means detects the use of the toilet, a signal is input to the electric control unit of the main body case (3), The control unit operates the pump (6) and the solenoid valve (7) for a fixed time according to the output signal. Thereby, the nozzle (1) is moved from the water storage tank (2).
Cleaning water is supplied to 0), and the first cleaning for forming a water film on the ball surface (11) is performed.

In the first cleaning, the formation of a water film on the ball surface (11) prevents the attachment of dirt when the toilet is used. On the other hand, the drain port (12) of the water storage tank (2) communicates with the rim water channel (15) through the water port (13) and the water chamber (14) of the toilet body (1). Wash water supplied to the rim water passage (15) is discharged from the water outlet (16), flows down the ball surface (11), and discharges dirt into the discharge port (1).
7) and the second cleaning is performed.

FIG. 2 is a plan view illustrating the state of the toilet of the present invention at the time of the first cleaning. As exemplified in FIG. 2, in the flush toilet of the present invention, the nozzle (1
The flush water spouted from 0) flows along the inner wall (9) of the toilet body (1), forms a water film on the ball surface (11), and then flows down to the reservoir (18). The nozzle (10) is inserted into a nozzle hole provided in the side wall (19) of the toilet bowl and fixed with a fixing screw (21) via a packing (20) as shown in an enlarged plan sectional view in FIG. 3, for example. The connection hose (8a) communicates with the water storage tank (2).

In the toilet of the present invention, as shown in FIG. 3, a water guide groove (22) for washing water can be provided from the tip of the nozzle (10) toward the ball surface. As shown in the front sectional view of FIG. 4, the water guide groove (22) is formed of a cutout groove formed substantially horizontally on the inner wall (9) of the toilet bowl. By providing this water guide groove (22), even if the washing water jetted from the nozzle (10) has a low water pressure, as shown in the perspective view of FIG.
It surely flows to the ball surface (11) to form a water film. The depth, width, length, and the like of the water guide groove (22) can be appropriately determined according to the shape of the ball surface (11), the amount of cleaning water, and the like.

Further, in the toilet of the present invention, the water supply capacity of the pump (6) of the first washing means can be changed manually or automatically, for example, as shown in FIG.
As shown in (a), a small amount of washing water is spouted from the nozzle (10), and the vicinity of the sump port (18), that is, the second
The ball surface (1
A water film is formed in the lower part of 1), or a large amount of cleaning water is jetted out as shown in FIG.
A water film can be formed from the upper part of 1). further,
By gradually changing the amount of water jetted from the nozzle (10) from a small amount to a large amount, a water film can be formed over a wide range of the ball surface (11). The pump (6) can be controlled by voltage control, duty control, or the like.

Of course, the present invention is not limited by the above-described examples, and it goes without saying that various aspects are possible in detail.

[0022]

As described above in detail, according to the present invention, the discharge of the cleaning water from the water storage tank by the separate water supply system allows the drainage of the waste and the attachment of the waste to the ball surface with a simple structure. And it can be prevented efficiently. As a result, discomfort and uncleanness due to the attachment of filth when the toilet is used is eliminated. Further, cleaning of the toilet is facilitated, and the frequency of the cleaning is reduced. The economics of using washing water are also good.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a toilet according to the present invention.

FIG. 2 is a plan view illustrating a state of a first flush in the toilet of the present invention.

FIG. 3 is an enlarged plan sectional view illustrating a nozzle mounting state for a first cleaning means in the toilet of the present invention.

FIG. 4 is a front sectional view showing a water guide groove for a first cleaning means in the toilet of the present invention.

FIG. 5 is a partial perspective view of the toilet of the present invention.

FIGS. 6 (a) and (b) each show a first water amount different from each other.
It is the top view which showed the state of washing.

FIG. 7 is a side sectional view illustrating a conventional flush-type flush toilet.

FIG. 8 is a side sectional view illustrating a conventional siphon-jet toilet.

[Explanation of symbols]

 Reference Signs List 1 toilet body 2 water storage tank 3 body case 4 toilet seat 5 toilet lid 6 pump 7 solenoid valve 8a, 8b connection hose 9 toilet inner wall 10 nozzle 11 ball surface 12 drain port 13 water supply port 14 water supply chamber 15 rim water passage 16 water injection hole 17 Discharge port 18 Reservoir port 19 Toilet bowl side wall 20 Packing 21 Fixing screw 22 Water guide groove

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E03D 11/08 E03D 11/02

Claims (3)

(57) [Claims] 1. A first cleaning means for spraying flush water from a nozzle communicating with a water storage tank along an inner wall of a toilet bowl to form a water film on a ball surface, and supplying water from the water storage tank to discharge waste from the toilet. Flush toilet, comprising: a second flushing means. 2. A water guiding groove for washing water discharged from a nozzle of the first washing means is provided on an inner side wall of the toilet bowl.
Flush toilet. 3. The toilet seat or the toilet lid, the first when using the toilet bowl
3. The flush toilet according to claim 1, further comprising automatic operation control means for discharging the washing water by the washing means.