JPH1113117A - Flush closet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge dirt suspended in flushing water in a bowl section surely by a small quantity of flushing water. SOLUTION: A movable wall 58 is installed to an elevating path 122 for discharging dirt from a bowl section 101. The movable wall 58 is curved towards the inside of the pipeline of the elevating path 122 by an actuator 60 fixed onto a rear, and the area of the pipeline of the elevating path 122 is reduced. When suspending dirt is discharged to the outside through the elevating path 122, a strength flushing switch 54 is operated, and the actuator 60 is driven by a controller 50. Accordingly, suspending dirt is passed through the elevating path 122, in which the area of the pipeline is reduced, together with flushing water through the curve of the movable wall 58.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet which discharges dirt in a bowl portion of a toilet bowl together with flush water through a trap.

[0002]

2. Description of the Related Art Rinse toilets of this type have become widespread not only in ordinary households but also in factories and stores with the spread of water and sewage. Due to such background, even if water shortage occurs due to reduced rainfall etc., it can be used without trouble,
It is desired to save water for washing water. In some cases, water conservation is imposed by local and national policies.

[0003]

By the way, the nature of the waste discharged into the toilet varies depending on the physical condition of the user and the like, and the waste (sedimentation) which settles in the washing water (pool water) stored in the ball. Dirt) and dirt floating on the washing water (floating dirt). When draining such various types of waste from the toilet while saving water, the settling waste will sink into the pool water and will be present around the joint between the bowl of the toilet and the trap, so cleaning will start. It flows into the trap at the beginning of the process and is discharged relatively easily. However, the place where the suspended dirt exists is the surface of the stored water.
For this reason, the suspended dirt flows into the trap only at the end time when the flow of the cleaning water in the ball portion into the trap ends. As a result, there were situations in which suspended solids could not be reliably discharged. In the case of a so-called siphon trap in which the trap causes a siphon action of the cleaning water in the ball, floating dirt is drawn into the trap by an attractive force due to the siphon action at the end of washing.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to reliably discharge suspended dirt with a small amount of washing water.

[0005]

Means for Solving the Problems and Their Functions and Effects In order to solve such problems, a first flush toilet of the present invention discharges dirt in a bowl portion of a toilet together with washing water through a trap. A flush toilet, wherein the trap is connected to the ball portion, and a rising pipe portion that forms a filth discharge pipe that has risen from the connection point; And a discharge pipe part forming a waste discharge pipe of the above, the rising pipe part, at least a part of the waste discharge pipe, the pipe area is smaller than the waste discharge pipe of the discharge pipe part It is characterized in that it is formed as a narrowed conduit portion.

In the first flush toilet of the present invention having the above-mentioned structure, when the dirt in the ball portion passes through the narrow duct portion of the dirt discharge duct of the rising duct portion together with the washing water, Since the area is small, the passing speed is improved. In addition, the velocity distribution at that time also becomes substantially uniform in the narrow conduit portion. Therefore, the washing water remaining in the ball portion flows into the rising pipe portion efficiently until the remaining washing water is completely eliminated. Therefore, even if the dirt is floating on the surface of the remaining washing water in the ball portion, the floating dirt certainly flows into the ascending pipeline together with the remaining washing water and is discharged from the toilet. In addition, the discharge of such floating contaminants does not require the supply of a larger amount of washing water than before. Therefore, according to the first flush toilet of the present invention, floating contaminants can be reliably discharged while saving water for washing water supplied to the ball portion.

[0007] The first flush toilet of the present invention having the above configuration can also adopt the following modes.
In the flush toilet according to (1), the narrow conduit portion may have a reduced conduit area on an upper half portion side in a cross section orthogonal to the conduit. According to this aspect, the shape of only the upper half or the lower half of the cross section of the pipeline can be easily reduced as described above, which is preferable. Further, the trap shape can be simplified by making the cross-sectional shape orthogonal to the pipeline substantially triangular. For this reason, it is preferable without complicating the process when manufacturing the toilet. In addition, there are the following advantages.

[0008] The sedimentable sediment that settles in the washing water in the ball portion passes through the rising pipe portion while being settled in the washing water. That is, the sedimentary waste passes through the lower half of the cross section orthogonal to the pipeline. In the above embodiment, since the lower half of this cross section does not have a reduced pipe area, it does not hinder the passage of the sedimentary waste and discharges even the sedimentary waste. be able to.

A second flush toilet according to the present invention is characterized in that flush water is supplied to a bowl portion of the toilet by a supply means, and waste in the bowl portion is discharged together with flush water through a trap. Wherein the trap is connected to the ball portion, and an ascending pipeline portion forming a filth discharge pipeline ascended from the connection portion, and connected to the ascending pipeline portion,
A discharge pipe portion forming a waste discharge pipe to the outside of the toilet,
A pipe area changing means for reducing a pipe area of at least a part of the waste discharge pipe in the rising pipe part from a waste discharge pipe in the discharge pipe part, wherein the supply means is provided in the ball portion. In the case where the waste is floatable waste, a control means for controlling the pipeline area changing means to reduce the pipeline area is provided.

In the flush toilet of the second aspect of the present invention having the above-described structure, the area of the waste discharge line is reduced when floating floating waste is discharged. And a uniform velocity distribution. Therefore, according to the second flush toilet of the present invention, floating contaminants can be reliably discharged while saving water for washing water supplied to the ball portion.

[0011] The second flush toilet of the present invention having the above configuration can also adopt the following modes. According to a first aspect, in the second flush toilet of the present invention, the control unit has an operation unit that is operated when the filth in the ball unit is a floating filth. When operated, the pipeline area changing means is controlled to reduce the pipeline area.

According to the first aspect, when the operation section is operated, the passage speed is improved and the uniform speed distribution is achieved through the reduction of the pipe area of the waste discharge pipe, and the washing water is conserved. Floating filth can be reliably discharged while reducing wastewater.

According to a second aspect, in the above-mentioned flush toilet according to the second aspect of the present invention, the control means has a determination means for determining whether or not the dirt in the ball portion is floating dirt. The pipeline area changing means may be controlled in accordance with the result of the determination by the determining means to reduce the pipeline area.

According to the second aspect, when it is determined that the dirt in the ball portion is floating dirt, the passage speed is improved and the uniformity is improved by reducing the area of the dirt discharge conduit. A velocity distribution is provided, and floating contaminants can be reliably discharged while saving water for washing.

According to a third aspect, in the above-mentioned second aspect, the judging means has a detecting means for detecting the degree of contamination of the surface of the washing water stored in the ball portion, and the detection result is obtained based on the detection result. It can be determined whether or not the dirt in the ball portion is floating dirt.

When the floating dirt is discharged to the ball portion, the floating dirt covers the washing water surface in the ball portion, and the cleaning water surface becomes more polluted. Therefore, it is possible to determine whether or not there is any floating dirt in the ball portion based on the degree of contamination of the washing water surface. For this reason, according to the third aspect, when it is assumed that the degree of contamination on the surface of the washing water is high and there is floating dirt in the ball portion, the passage speed is reduced through the reduction of the pipe area of the dirt discharge pipe. An improved and uniform velocity distribution is provided, and floating waste can be reliably discharged while saving water for washing.

In a fourth aspect based on the second aspect, the detecting means has means for detecting the degree of light reflection on the surface of the washing water stored in the ball portion. Can be.

When the floating dirt is discharged to the ball portion, the surface of the washing water in the ball portion is covered with the floating dirt, and the floating dirt generally has a color different from that of the cleaning water. However, the degree of light reflection at the surface of the washing water changes greatly. On the other hand, in the case of the sedimentary waste, it settles in the washing water, so that the change in the degree of light reflection on the washing water surface is small. Therefore, it is possible to determine whether or not there is any floating dirt in the ball portion based on the degree of light reflection on the surface of the washing water. For this reason, according to the fourth aspect, if the degree of light reflection on the surface of the washing water changes and it is determined that floating dirt is present in the ball portion, the pipe area of the dirt discharging pipe is reduced. Through the passage, the passage speed is improved and a uniform speed distribution is provided, and the floating filth can be reliably discharged while saving water of the washing water.

According to a fifth aspect of the present invention, in the flush toilet of the second aspect of the present invention, the conduit area changing means includes an upper half portion in a cross section orthogonal to the conduit of the waste discharge conduit. The pipe area may be reduced.

In the fifth aspect, the area of the pipeline is reduced on the upper half side in the cross section orthogonal to the pipeline of the waste discharge pipeline, and the sedimentary waste that settles in the washing water in the ball portion passes therethrough. The lower half of the work. Therefore, according to the fifth aspect, even if sedimentary waste may pass through the rising pipeline when the pipeline area is reduced, there is no hindrance to the passage of the sedimentary waste. Without having any effect, sedimentary waste can be reliably discharged.

A third flush toilet according to the present invention is a flush toilet which supplies flush water to a bowl portion of the toilet by a supply means and discharges dirt in the bowl portion together with flush water through a trap. The trap is connected to the ball portion and forms an ascending drain line that rises from the connection portion, and an ascending conduit portion, which is connected to the ascending conduit portion, and connects a dirt discharging line to the outside of the toilet. A discharge pipe line portion to be formed, and a pipe line area changing means for reducing a pipe line area of at least a part of the waste discharge pipe line in the rising pipe line portion from a waste discharge pipe line of the discharge pipe line portion, The supply means,
Control means for controlling the pipeline area changing means to reduce the pipeline area at an end time when the flow of the washing water from the ball portion to the ascending pipeline portion is completed.

In the third flush toilet of the present invention having the above-described structure, the pipe area of the waste discharge pipe is reduced at the end time when the flow of the washing water into the rising pipe is completed. In this case, since the floating dirt is floating in the washing water in the ball portion, it flows into the rising pipe together with the washing water at this end time. Therefore, when the floating dirt flows in, the pipe area of the dirt discharge pipe is reduced, and in such a case, the passage speed is improved and a uniform speed distribution is obtained. Therefore, according to the third flush toilet of the present invention,
Floating waste can be reliably discharged while saving water for washing water supplied to the ball portion.

[0023] The third flush toilet of the present invention having the above configuration can also adopt the following mode. The first mode is the third flush toilet of the present invention. Has means for measuring an elapsed time from the start of supply of the washing water to the ball portion, and when the elapsed time reaches a predetermined time, controls the pipeline area changing means to control the pipeline area. Can be reduced.

According to the first aspect, when the elapsed time reaches the predetermined time, the end time of the end of the flow of the washing water into the rising pipe portion is reached. By reducing the area, the passage speed is improved and a uniform speed distribution is provided, so that the floating filth can be reliably discharged while saving the washing water.

According to a second aspect, in the above flush toilet of the third aspect of the present invention, the conduit area changing means is provided on an upper half portion in a cross section orthogonal to the conduit of the waste discharge conduit. The pipe area may be reduced.

In the second embodiment, the area of the pipeline is reduced on the upper half side in a cross section orthogonal to the pipeline of the waste discharge pipeline, and the sedimentary waste that settles in the washing water in the ball portion passes therethrough. The lower half of the work. Therefore, this second
According to the aspect, even if the sedimentary waste may pass through the rising pipeline portion when the pipeline area is reduced,
The sedimentary waste can be reliably discharged without any hindrance to the passage of the sedimentary waste.

[0027]

Next, embodiments of the present invention will be described based on examples. First, a first embodiment will be described. The flush toilet of the first embodiment is a so-called low silhouette flush toilet without a flush water tank separate from the toilet. In the flush toilet 100 of the first embodiment, as shown in FIG. 1 which is a schematic cross-sectional view thereof, a ball portion 101 is formed slightly forward of a toilet body 101a, and dirt drops at the bottom of the ball portion 101. Recess 112
The entrance 121 of the drain trap 102 is opened in the back wall portion of. Further, on the front wall of the dirt dropping recess 112, a jet water outlet 106 (wash water outlet) is opened facing the inlet 121 of the drain trap 102. A water discharge nozzle (not shown) is provided at the jet water discharge port 106 so as to face the inlet 121, and flush water for flushing the toilet bowl is discharged from the water discharge nozzle. Therefore, when the wash water is discharged from the water discharge nozzle toward the inlet 121 at the jet water discharge port 106, the ball 10
The so-called jet cleaning is performed in which the waste is discharged together with the cleaning water from the drain trap 102 to clean the ball portion.

At the periphery of the opening of the ball portion 101, there is provided a water passage rim 103 for discharging the washing water along the inner wall surface of the ball portion 101. And this water rim 10
When the cleaning water is discharged from 3, so-called rim cleaning for cleaning the inner wall surface of the ball portion 101 is performed.

Above the rear part of the flush toilet 100, a water supply valve 105 connected to the water supply pipe 2 and a switching valve 41 connected downstream thereof are provided. This water supply valve 105
Is an electromagnetic valve configured to receive infrared light emitted from the operation panel and open a pipeline for a predetermined time when a cleaning button on a remote operation panel (not shown) is pressed. The water supply pipe 2 is closed. The switching valve 41 is
The supply destination of the washing water supplied from the water supply pipe 2 via the water supply valve 105 is configured to be switched in time series as follows. In other words, the switching valve 41 has its supply destination
Initially, the supply pipe 133 is for supplying the washing water to the water flowing rim 103, and thereafter, the connection pipe 137 is connected to the above-described water discharge nozzle. Thereafter, the supply pipe 133 is switched again. Then, by chronologically switching the supply destination of the cleaning water to these pipes, jet cleaning is performed subsequent to the rim cleaning described above, and thereafter, rim cleaning is performed again. Since the detailed configuration of the switching valve 41 is not directly related to the gist of the present invention, the description thereof will be omitted.

Next, the configuration for flushing the flush toilet 100 and the manner of flushing the flush toilet will be described.

Now, when the flush button on the remote control panel is operated for flushing the toilet, the switching valve 41 switches the supply destination of the flush water to the supply pipe 133 to which the water flow rim 103 is connected. As a result, the washing water that has passed through the water supply valve 105 is guided to the water passing rim 103 via the supply pipe 133, and rim washing is started. That is, cleaning water is discharged from the rim water outlet holes 132 formed at appropriate intervals on the lower surface of the water passing rim 103 along the inner wall surface of the ball portion, and the inner wall surface of the ball portion is washed by the cleaning water. When rim cleaning is performed in this way,
The supply destination of the washing water is switched to the connection pipe 137 by the switching valve 41. Therefore, the washing water that has passed through the water supply valve 105 is sent to a discharge nozzle (not shown) via the connection pipe 137, and is discharged from the discharge nozzle. Therefore, jet cleaning is started following rim cleaning, and waste is discharged as described below.

The discharge nozzle at the distal end of the connecting pipe 137 is disposed in the Z water conduit 161.
Are directed in substantially the same direction as the directional direction. For this reason,
When the supply destination of the washing water is switched to the connection pipe 137 by the switching valve 41 as described above, the washing water is supplied from this discharge nozzle at a high water pressure substantially equal to the primary pressure (water supply pressure of tap water). Run out to. Therefore, the water discharged from the discharge nozzle becomes a jet that entrains the water in the jet water conduit 161. For this reason, the washing water is directly discharged from the jet discharge port 106 toward the inlet 121 of the drain trap 102 through the jet water conduit 161 like water discharge by a jet pump. Therefore, the drain trap 102
A large amount of cleaning water is sent at once, and the dirt in the dirt dropping recess 112 of the ball portion 101 is washed away by the large amount of cleaning water and is strongly pushed into the drain trap 102, and this waste trap described later is used. Emitted from 102.

As described above, the drain trap 102 has its entrance 121 opened to the dirt drop recess 112 provided at the bottom of the ball portion 101, and from the entrance 121, along the back surface of the bowl portion 101. It has an ascending path 122 that extends diagonally upward toward the rear of 101a.
The ascending path 122 has a cross-sectional shape as shown in FIG. 2 in a 2-2 line cross-sectional view over a range indicated by a symbol A in the drawing. That is, although the ascending path 122 has the same pipe diameter (about 55 mm) as that of the existing circular pipe, the upper half pipe section 1 on the upper half portion in this pipe cross section is used.
At 22a, the pipe area is reduced. In the lower half pipeline portion 122b on the lower half portion side in this pipeline cross section,
It has the same shape as the existing one. However, as shown in FIG. 3, the pipe may have a substantially triangular shape and a modified cross section. Even in this case, the pipe area is reduced in the upper half pipe section 122a in the pipe cross section.

The drain trap 102 is connected to the rising path 122 at the upper end thereof and extends substantially vertically downward from the connection point, and extends laterally forward from the lower end of the falling path 123 forward of the toilet body 101a. A horizontal pulling path 124 is provided, and a toilet drain port 125 is vertically opened at the tip of the horizontal pulling path 124. That is, in the drain trap 102, the descending passage 123 and the horizontal pulling passage 124 form a continuous bent conduit for discharging waste to the outside of the toilet. In this case, the descending passage 123 and the horizontal pulling passage 124 form a circular conduit like the existing one,
Its diameter is about 55 mm. The ascending road 122
If water separates at the weir portion 127 which is a connecting portion between the lower path 123 and the descending path 123, the separated water collides with the inner side wall of the lower path 123 and forms a turbulent flow. . Therefore, the radius of curvature of the weir 127 is 5
0 to 75 mm (for the drain trap diameter φ55,
0.9-1.4 times), preferably 55-65 mm
(1.0-1.2 with respect to the drain trap diameter φ55)
It is configured so that water does not peel off from the weir 127 as much as possible.

The drain trap 10 having such a configuration
In 2, when the cleaning water is discharged into the dirt dropping concave portion 112, the cleaning water in the ascending path 122 first climbs over the weir 127 without causing the separation of the water, and the air existing in the weir is taken in and the cleaning is performed. Water flows into the descending path 123. Therefore,
Since the area from the waste drop recess 112 to the descending path 123 is filled with the washing water via the ascending path 122, a siphon action occurs. Therefore, the washing water in the dirt dropping recess 112 is drawn into the rising path 122 by the pulling force generated by the siphon action, and the dirt is discharged through the rising path 122 by the drawing of the washing water.

This drain trap 102
Has a double seal structure that constitutes a seal at the location, and the siphon generation promoting means 126 thereof
An outer wall surface extending downward on the downstream side of the weir 127 so as to collide with water that falls on the upper end 22, that is, the descending passage 123 over the weir 127, is formed by projecting in a horizontal step shape into the drain trap 102. doing. In addition, the second weir 12
In FIG. 8, the horizontal pulling path 124 is once bent upward so as to form the pool portion 129 before the toilet drain port 125, and is formed by the upward bent portion. The length of the horizontal step of the siphon generation promoting means 126 is 15 to 25 mm.
(0.25-0.
45 times), and the pool 129 by the second weir 128 is 2
5 to 35 mm (0.
It is preferable to form the space so as to have a ventilation space of about 45 to 0.65 times.

The descending path 123 is formed in a substantially cylindrical shape in the direction of gravity with a path length of 100 to 150 mm from the weir 127 (about 1.8 to 2.7 times the diameter of the drain trap of φ55). The reservoir 129 is formed so as to be located immediately below the descending path 123. As described above, since the path length of the descending path 123 is set to 150 mm or less, the water that has passed through the weir 127 is generated by the siphon generation promoting means 12.
Before arriving at 6, the turbulence colliding with the inner side wall of the descending path 123 and involving air is not generated, and the air can be quickly discharged. In addition, since the length is set to 100 mm or more, kinetic energy sufficient for generating a seal in the siphon generation accelerating means 126 can be obtained.

Further, after the horizontal pulling path 124 is bent upward once as described above to form the second weir 128, it is immediately bent downward, and the downward bent 130 directly communicates with the toilet drain 125. ing.

The siphon generation promoting means 126 also has a flow direction correction function. The installation position of the flow direction correcting means 126a is very important, and is provided on the outer wall surface of the drain trap 102 at the position shown in the drawing, that is, at the intersection of the descending path 123 and the horizontal drawing path 124. By performing the flow direction correction at this position, the descending path 12 of the drain trap 102 can be adjusted.
It is possible to correct a non-uniform flow velocity distribution which normally occurs when the bent portion continuous from 3 to the horizontal pulling path 124 is completely turned.

The position of the flow direction correcting means 126a is above the center with respect to the height direction of the horizontal pulling path 124.
The position of 10 to 20 mm from the ceiling wall, that is, the height position of about 2/3 of the ventilation space is most effectively corrected for the flow velocity distribution,
In addition, the air in the drain trap 102 can be quickly discharged.

When the flow direction correcting means 126a is provided at a position higher than the intersection of the descending path 123 and the horizontal pulling path 124, the bent portion continuous from the descending path 123 to the horizontal pulling path 124 is bent as described above. In addition to the uneven flow velocity distribution, the horizontal stepwise flow direction correcting means 12
The water flow bent sideways by 6a becomes a flow that blocks the drain trap 102, and may hinder siphon growth. Conversely, if this position is set lower than the above, the effect of the flow velocity correction becomes lower.

The drain trap 102 has a radius of curvature of a downward bent portion 130 formed from the top of the bent portion constituting the second weir portion 128 to the toilet drain port 125.
~ 65 mm (with respect to the drain trap diameter φ55
It is set as large as about 7 to 1.2 times), preferably 45 to 55 mm (about 0.8 to 1.0 times with respect to the diameter of the drain trap φ55), and the terminal where the drain □ 125 is open is a toilet. The discharge path is formed as long as possible so as to reach the same level as the bottom surface of the main body 101a. In the present embodiment, the radius of curvature of the downward bent portion 130 is 55 mm (1 for the diameter φ55 of the drain trap).
0).

As described above, the waste is discharged from the drain trap 102.
When the jet cleaning discharged from the nozzle is completed, the supply destination of the cleaning water is switched again to the supply pipe 133 by the switching valve 41. For this reason, the washing water is guided again to the water flowing rim 103,
Rim cleaning is started again. The cleaning water that has flowed out of the rim water outlet hole 132 by the rim cleaning at this time is stored in the ball portion 101 as stored water.

As described above, in the flush toilet 100 of the present embodiment, the ascending path 122 connected to the dirt dropping recess 112 is replaced with the conduit having a reduced conduit area at the upper half conduit section 122a. did. For this reason, the waste drop recess 112
When the washing water is spouted and the contaminants in the concave portion pass along the pipeline along the ascending path 122 together with the washing water, the dirt passes at a high passage speed due to the decrease in the area of the pipeline. In addition, the velocity distribution at that time becomes substantially uniform. Therefore, the ball portion 10
The cleaning water remaining in 1 and the waste discharged into the ball portion 101 flow into the ascending path 122 efficiently until the cleaning water in the waste drop recess 112 is completely exhausted. For this reason, even if the dirt is floating on the surface of the washing water in the ball portion 101, the floating dirt certainly flows into the ascending path 122 together with the washing water and is discharged from the toilet. In addition, the discharge of such floating contaminants does not require the supply of a larger amount of washing water than before. Therefore, according to the flush toilet 100 of the present embodiment,
Floating contaminants can be reliably discharged while saving water for washing water supplied to the ball portion 101.

In the flush toilet 100, since the pipe area is reduced at the upper pipe section 122a in the rising path 122, it is only necessary to change the shape of the upper pipe section 122a alone. Therefore, in manufacturing the flush toilet 100 having such an ascending channel 122, it is not necessary to significantly change the manufacturing equipment, and the pipe area in the ascending channel 122 can be easily reduced, which is preferable. There are also the following advantages.

When the waste discharged into the ball portion 101 is settled in the washing water, the settled waste passes through the rising path 122 in a state of being settled in the wash water.
In other words, the sedimentary waste passes through the lower half pipe section 122b of the ascending path 122. The lower half-pipe section 122b has no narrow pipe area, and does not hinder the passage of sedimentary waste. Therefore, even sedimentary waste can be reliably discharged.

In the flush toilet 100 of this embodiment, the jet water discharge from the jet water discharge port 106 and the drain trap 10
2 because the siphon action by 2 is also used.
Combined with the narrowing of the pipe area of No. 2, the floating waste can be more reliably discharged.

Next, another embodiment will be described. In the description, the same components as those of the flush toilet 100 of the above-described first embodiment and members that perform the same functions are denoted by the same reference numerals used in the first embodiment, and detailed description thereof will be omitted. Is omitted. First, a second embodiment will be described.

The flush toilet 100A of the second embodiment has the following configuration for discharging wastes from the ball portion 101 of the toilet body 101a. As shown in FIG. 4, the flush toilet 100A includes a controller 50 and a remote control panel 52 for performing reduction control of a pipe area in the ascending path 122 as described later. The remote control panel 52 is provided with a strong cleaning switch 54 and a normal cleaning switch 56 operated by a user. Powerful cleaning switch 54
Is operated when the discharged waste is floating waste, and when the switch is operated, a signal to that effect is transmitted from the remote control panel 52 to the controller 50. The normal cleaning switch 56 is operated when the discharged waste is settling waste, and when the switch is operated, a signal to that effect is transmitted from the remote control panel 52 to the controller 50. . Controller 50
Is configured as a logical operation circuit having a CPU, a ROM, a RAM, and the like, and performs a toilet cleaning process described later based on signals from the strong cleaning switch 54 and the normal cleaning switch 56.

The ascending channel 122 is provided above the pipeline wall.
It has a movable wall 58 made of a flexible plate. The movable wall 58 is integrally formed so that a peripheral edge thereof enters the pipe wall of the ascending path 122, and can be bent toward the inside of the ascending path 122 by the actuator 60 fixed to the back surface. When the actuator 60, for example, a solenoid projects the brassiere, the brassier is curved as shown in FIGS. 5 and 6, and the pipe area of the rising path 122 is reduced. In this case, the actuator 60 is driven by a control signal from the controller 50.

Note that, even in the flush toilet 100A, the rim / jet / rim cleaning is sequentially performed by the switching valve 41.

Next, the toilet flushing process performed by the controller 50 will be described. FIG. 7 is a flowchart showing the contents of the toilet bowl cleaning process.
It is executed each time a toilet flushing signal is transmitted from the remote control panel 52. That is, when either the strong cleaning switch 54 or the normal cleaning switch 56 is operated and a signal to that effect is transmitted to the controller 50, the toilet flushing process of FIG. 7 is started. Then, first, the controller 50 opens the water supply valve 105 (step S100). This allows
The washing water is supplied, and the washing water is discharged through the switching valve 41 into the dirt dropping recess 112 of the ball portion 101. In this case, as described above, rim cleaning is initially performed by the switching valve 41, then jet cleaning is performed, and finally, rim cleaning is performed again.

Subsequent to the opening of the water supply valve, it is determined whether the operated washing switch is the strong washing switch 54 or the ordinary washing switch 56 (step S10).
5). This determination is made based on a signal transmitted from the remote control panel 52. Here, strong cleaning switch 5
When it is determined that No. 4 has been operated, the following processing is performed in order to reliably discharge the floating dirt. That is, the movable wall 58 is curved by controlling the drive of the actuator 60,
22 (Step S11)
0). Next, it is determined whether or not the toilet flushing has been completed, for example, based on an elapsed time from the opening of the water supply valve 105 (step S115), and the actuator 60 is driven until the toilet flushing is completed. If it is determined in step S115 that the toilet flushing has been completed, the actuator 60 is controlled to stop, the movable wall 58 is returned to the original state, and the pipe area in the rising path 122 is returned to the original state (step S120).
In this case, in this embodiment, the rim / jet / rim cleaning is performed, and the water is stored in the last rim cleaning. Therefore, when the jet cleaning is completed, it is determined that the toilet flush with waste discharge is completed.

Next, it is determined whether or not the pool water in the ball portion 101 has been completed, that is, whether or not the last rim cleaning has been completed, based on the elapsed time or the like (step S12).
5) Wait until a positive determination is made. And step S
If an affirmative determination is made in 125, the water supply valve 105 is closed (step S130), and this routine is terminated to prepare for the next toilet flush.

On the other hand, if it is determined in step S105 that the normal cleaning switch 56 has been operated, it is determined that the pipe area of the ascending path 122 does not need to be reduced because the sedimentary waste is discharged. The process shifts to the processing after step S125.

As described above, in the flush toilet 100A according to the second embodiment, when the user operates the powerful flush switch 54 to discharge the floating dirt,
The pipe area of the rising path 122 is reduced via the movable wall 58 (step S110, see FIGS. 5 and 6). For this reason,
At the time of floating waste discharge, the passage speed of the washing water in the ascending path 122 is improved and a uniform speed distribution is provided. Therefore, even in the flush toilet 100A of the second embodiment, floating contaminants can be reliably discharged while saving water for washing supplied to the ball portion 101.

The flush toilet 100A of the second embodiment.
6, as shown in FIG. 6, since the pipe area is reduced in the upper half of the ascending path 122, the sedimentary dirt is reduced when the movable wall 58 reduces the area of the ascending path 122. There is no hindrance when passing. Therefore, even if the strong cleaning switch 54 and the normal cleaning switch 56 are erroneously operated by the user, specifically, even if the strong cleaning switch 54 is operated irrespective of the sedimentable waste, this operation is performed without any trouble. Sedimentary waste can be reliably discharged.

Next, a third embodiment will be described. In the flush toilet 100B according to the third embodiment, as shown in FIG. 8, the remote control panel 52 has a single flush switch 55, and a part of the toilet flush process shown in FIG. This is different from the flush toilet 100A of the second embodiment. That is, in the flush toilet 100B, when the flush switch 55 is operated regardless of whether the waste is floating or sedimentable, the flush is performed.

FIG. 9 shows a flush toilet 100 according to the third embodiment.
6 is a flowchart showing the contents of the toilet flushing process in B, and the toilet flushing process is executed each time the flush switch 55 on the remote control panel 52 is operated and a toilet flush signal is transmitted. As described above, when the cleaning switch 55 is operated and a signal to that effect is transmitted to the controller 50,
First, the controller 50 opens the water supply valve 105 (step S100). As a result, the cleaning water is supplied, and the switching valve 41 discharges the cleaning water to the dirt drop recess 112 of the ball portion 101 as described above. In this case, rim cleaning / jet cleaning / rim cleaning is sequentially performed as described above.

Following the opening of the water supply valve, the discharged flush water flows from the ball portion 101 into the ascending path 122,
It is determined whether or not the washing is completed at the end of the flow (step S102). The flush toilet 10 of this embodiment
In 0B, the rim cleaning for cleaning the ball surface of the ball portion 101, the jet cleaning for discharging the waste, and the rim cleaning for storing the water in the ball portion 101 are performed before discharging the waste. The flow of the cleaning water into the ascending path 122 ends with the jet cleaning. Therefore, in this step S102, the elapsed time from when the water supply valve 105 is opened is measured, and the measured time is a predetermined time before the jet cleaning ends, for example, a time several seconds before the jet cleaning ends (jet time). Time just before the end)
It is determined whether it is the end of cleaning. However, since the switching of the washing water by the switching valve 41 and the execution time of each washing are in one-to-one correspondence, the switching timing of the washing water by the switching valve 41 is directly detected, and according to the result, is the washing end time? May be determined. And
The process waits until it is determined in step S102 that cleaning has ended.

If it is determined in step S102 that the cleaning has ended, the same processing as in the second embodiment is performed. That is, the drive of the actuator 60 is controlled to
8 is curved to reduce the pipe area in the ascending path 122 (step S110). Next, it is determined whether or not the toilet flushing has been completed based on the above time measurement (step S115).
Drive 0. If it is determined in step S115 that the toilet flushing has been completed, the actuator 60 is controlled to stop, the movable wall 58 is returned to the original state, and the pipe area in the rising path 122 is returned to the original state (step S120). In this case, even in the present embodiment, it is determined that the toilet flush with waste discharge has been completed when the jet flush is completed.

Subsequently, it is determined whether or not the accumulated water in the ball portion 101 has been completed, that is, whether or not the last rim cleaning has been completed (step S125), and the process waits until an affirmative determination is made. If an affirmative determination is made in step S125, the water supply valve 105 is closed (step S130), and this routine is ended to prepare for the next toilet flush.

As described above, in the flush toilet 100B of the third embodiment, the flush switch 5
When a predetermined time elapses after the toilet flushing is started through the operation of step 5 and more specifically, the time immediately before the end of the jet is reached and the toilet flushing is completed, the pipe area of the rising path 122 is reduced via the movable wall 58. (Step S110, see FIGS. 5 and 6). In other words, at the initial stage of the cleaning, the pipe area of the ascending channel 122 is kept as it is, and only at the end of the cleaning, the ascending channel 122 is maintained.
Reduce the pipe area. Therefore, there are the following advantages.

Since the floating dirt is floating in the washing water in the ball portion 101, at the end of the toilet flushing,
It flows into the rising path 122 together with the washing water. Accordingly, the duct area of the ascending path 122 is reduced at the end of the washing in which the floating contaminants flow. In such a case, the passage speed is improved and a uniform speed distribution is obtained. Therefore, this third
Even in the flush toilet 100B of the embodiment, floating contaminants can be reliably discharged while saving water for washing water supplied to the ball portion. In addition, since the sedimentary sediment has settled in the washing water in the ball portion 101, it flows into the ascending path 122 together with the washing water at the initial stage of the toilet washing, and the pipe of the ascending path 122 at the beginning of the washing. The area does not change (do not decrease). Therefore, even in the case of sedimentary waste,
It can be discharged reliably.

The flush toilet 100B according to the third embodiment.
In this case, since only one cleaning switch 55 is provided, it is preferable that the user does not need to judge whether to discharge floating sewage or settled sewage.

Next, a fourth embodiment will be described. As shown in FIG. 10, the flush toilet 100C of the fourth embodiment has an optical sensor 62 installed toward the flush water surface stored in the ball portion 101. This optical sensor 62
Is a so-called reflection type optical sensor, and the ball portion 101
A signal corresponding to the degree of light reflection on the surface of the stored water is output to the controller 50. The flush toilet 100C of the fourth embodiment determines whether the dirt on the ball portion 101 is floating or sedimentary based on the signal (detection result) from the optical sensor 62. A toilet cleaning process is performed according to the determination result. In this case, the flush toilet 100A of the second embodiment performs a process that replaces step S105 shown in FIG.

That is, the flush toilet 100A of the second embodiment.
After opening the water supply valve (step S100) in the same manner as described above,
The controller 50 inputs a signal from the optical sensor 62,
Based on the signal, a determination is made as to whether the waste is floating or settled as follows. When the floating dirt is discharged to the ball portion 101, the surface of the stored water is covered with the floating dirt. In general, floating sewage has a color different from that of washing water, for example, a color such as yellow or tan, so that the degree of light reflection on the water surface varies greatly. On the other hand, in the case of the sedimentary waste, since the sediment settles in the pool water of the ball portion 101, the degree of light reflection on the surface of the pool water hardly changes. The controller 50 has, in the ROM thereof, a map in which the signal from the optical sensor 62 and the degree of light reflection on the water surface of the pool are associated. For this reason, the controller 50 compares the input signal from the optical sensor 62 with this map, and
It is possible to determine whether the waste discharged in 01 is a floating waste or a settled waste.

Then, the above-described processing in place of step S105 is performed, and when it is determined that the dirt in the ball portion 101 is floating dirt, step S110 shown in FIG.
Execute the following processing. When it is determined whether the waste is sedimentable waste, as shown in FIG.
It moves to 25. Accordingly, when the filth in the ball portion 101 is a floating filth, the pipe area of the ascending path 122 is reduced, thereby improving the passage speed of the washing water and providing a uniform speed distribution. For this reason, even in the flush toilet 100C of the fourth embodiment, it is possible to reliably discharge the floating contaminants while saving the washing water supplied to the ball portion. In addition, when discharging sedimentary waste, the rising road 12
Since the pipe area of No. 2 is kept as it is, even sedimentary waste can be reliably discharged.

The embodiments of the present invention have been described above.
The present invention is not limited to the above-described examples and embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

For example, in the second to fourth embodiments, the movable wall 58 is curved by driving the actuator 60 to reduce the pipe area of the ascending path 122. However, the following configuration may be adopted. That is, as shown in FIG.
The pump 22 is provided with a rubber film 64 in place of the movable wall 58, and a pump 66 for sending air between the back surface of the rubber film 64 and the inner peripheral wall surface of the rising path 122. Then, the pump 66 is driven and controlled by the controller 50, and the rubber film 64 is protruded into the ascending path 122 to reduce the pipe area of the ascending path 122. Even in the case of employing such a configuration, the floating filth can be surely discharged while saving water through reduction of the pipe area of the ascending channel 122. Moreover, in this case, the degree of protrusion of the rubber film 64 can be changed to change the degree of reduction of the pipe area in the ascending path 122, so that the floating dirt can be more reliably discharged. In addition, the rubber film 64 is made to protrude not only along the central portion but also along the ascending path 122 so that the ascending path 12
The range of reduction of the pipe area in 2 can also be widened.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a flush toilet 100 according to a first embodiment.

FIG. 2 is a sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is a sectional view showing a modification of the ascending path 122 shown in FIG. 2;

FIG. 4 is an overall configuration diagram of a flush toilet 100A according to a second embodiment shown together with a cross section of a toilet main body 101a.

FIG. 5 is an explanatory diagram showing a state of a pipe area of an ascending path 122 by a movable wall 58;

FIG. 6 is a sectional view of a principal part taken along line 6-6 in FIG. 5;

FIG. 7 is a flowchart showing a toilet flushing process performed in the flush toilet 100A of the second embodiment.

FIG. 8 is an overall configuration diagram of a flush toilet 100B according to a third embodiment together with a cross section of the toilet main body 101a.

FIG. 9 is a flowchart showing a toilet flushing process performed in the flush toilet 100B of the third embodiment.

FIG. 10 is an overall configuration diagram of a flush toilet 100C according to a fourth embodiment shown together with a cross section of a toilet main body 101a.

FIG. 11 is an explanatory diagram for explaining a modification in which the pipe area of the ascending path 122 is reduced.

[Explanation of symbols]

 Reference Signs List 50 controller 52 remote control panel 54 powerful cleaning switch 55 cleaning switch 56 normal cleaning switch 58 movable wall 60 actuator 62 optical sensor 64 rubber film 66 pump 100-100C toilet flush toilet 101 Ball part 102 ... Drain trap 103 ... Water rim 105 ... Water supply valve 106 ... Z water discharge port 112 ... Dirt drop-in recess 121 ... Inlet 122 ... Ascending path 122a ... Upper half pipe part 122b ... Lower half pipe part 123 ... Lowering Road 125: Toilet drain

Claims (12)

[Claims] 1. A flush toilet that discharges dirt in a bowl portion of a toilet bowl together with washing water through a trap, wherein the trap is connected to the ball portion, and a dirt discharge pipe that rises from a connection point thereof. A rising pipe part forming a passage, and a discharge pipe part connected to the rising pipe part and forming a waste discharging pipe to the outside of the toilet, wherein the rising pipe part is the waste discharging pipe. A flush toilet, wherein at least a part of the channel is formed as a narrow channel portion having a channel area smaller than a waste discharge channel of the discharge channel portion. 2. The flush toilet according to claim 1, wherein the narrow duct portion has a duct area reduced on an upper half side in a cross section orthogonal to the duct. Toilet bowl. 3. The flush toilet according to claim 2, wherein the narrow conduit portion has a substantially triangular cross section orthogonal to the conduit. 4. A flush toilet which supplies cleaning water to a bowl portion of a toilet by a supply means and discharges dirt in the ball portion together with the cleaning water through a trap, wherein the trap comprises: An ascending pipeline portion connected to form a filth discharge pipeline rising from the connection point; a discharge pipeline portion connected to the ascending pipeline portion to form a filth discharge pipeline to the outside of the toilet; A pipe area changing means for reducing a pipe area of at least a part of the waste discharge pipe in the pipe part from a waste discharge pipe in the discharge pipe part, wherein the supply means comprises: Is a floating sewage,
A flush toilet having control means for controlling the pipe area changing means to reduce the pipe area. 5. The flush toilet according to claim 4, wherein the control unit has an operation unit that is operated when the filth in the ball unit is a floating filth, and the operation unit is A flush toilet that, when operated, controls the conduit area changing means to reduce the conduit area. 6. The flush toilet according to claim 4, wherein the control means has a determination means for determining whether or not the filth in the ball portion is a floating filth. A flush toilet, wherein the pipe area is reduced by controlling the pipe area changing means according to a result. 7. The flush toilet according to claim 6, wherein the judging means has a detecting means for detecting a degree of contamination of the surface of the washing water stored in the ball portion, and based on a result of the detection. A flush toilet that determines whether or not the dirt in the ball portion is floating dirt. 8. The flush toilet according to claim 6, wherein the detecting means includes means for detecting a degree of light reflection on a flush water surface stored in the ball portion. toilet bowl. 9. The flush toilet according to claim 4, wherein the pipe area changing means changes the pipe area on an upper half portion side in a cross section orthogonal to a pipe of the waste discharge pipe. Reduce, flush toilet. 10. A flush toilet which supplies flush water to a bowl portion of a toilet bowl by a supply means and discharges dirt in the bowl portion together with flush water via a trap, wherein the trap comprises: An ascending pipeline portion connected to form a filth discharge pipeline rising from the connection point; a discharge pipeline portion connected to the ascending pipeline portion to form a filth discharge pipeline to the outside of the toilet; A pipe area changing means for reducing a pipe area of at least a part of the waste discharge pipe in the pipe part from a waste discharge pipe in the discharge pipe part, wherein the supply means comprises: A flush toilet having control means for controlling the pipe area changing means to reduce the pipe area at the end time when the flow of the washing water into the rising pipe part is finished. 11. The flush toilet according to claim 10, wherein the control means includes means for measuring an elapsed time since the supply of the wash water to the ball portion was started. A flush toilet that controls the pipe area changing means when the time reaches a predetermined time to reduce the pipe area. 12. The flush toilet according to claim 10, wherein the pipe area changing means adjusts the pipe area on an upper half portion in a cross section orthogonal to the pipe of the waste discharge pipe. Reduce, flush toilet.