JP2002097704A - Flush toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a washing function of a toilet bowl by releasing flushing water to a part of toilet bowl. SOLUTION: The left side of the upper rear edge of a bowl 120 has a gushing nozzle 144 of a rim on a basal part of the rim 121. Flushing water (city water) from a water service pipe is released to the gushing nozzle of the rim 144 through water supply pipe 143 equipped in the toilet bowl and is gushed from the gushing nozzle of the rim 144 in original condition of city water pressure. The flushing water is guided in a guide concave 124a, circulated around the upper edge of the bowl, and flows down on the bowl face to join standing water aslant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet for flushing fresh flush water through a flush bowl for storing stored water.

[0002]

2. Description of the Related Art There are various systems for flushing flush water through a bowl portion of a toilet bowl to wash the flush water. The flushing system is widely used from a hollow rim provided at an upper edge of a bowl portion of a toilet bowl. Widespread. In this method, the hollow rim is used as a water passage, and flush water is spouted almost vertically from a hole scattered at the lower end of the rim or a U-shaped hole formed so as to surround the ball portion over the lower end of the rim. .

[0003]

In the conventional cleaning method described above, new cleaning water is stored in a tank in advance, and the cleaning water in the tank is supplied to a rim water passage.
Washing water is supplied directly from a water pipe or the like without using such a storage tank. However, this direct water supply has not been applied to the washing water jetting method from the upper edge of the ball portion for the reason described below.

When washing water is directly supplied to the rim waterway from a water pipe or the like, the washing water is spouted almost vertically from the lower end of the rim with the tap water source pressure. This gushing wash water is
Since the water hits the surface of the ball portion and reaches the water immediately, the washing water sometimes scatters to the outside of the ball due to the collision with the surface of the ball portion or the surface of the water. In addition, there is a problem that the sound accompanying the collision of the washing water increases. Because of these problems, it has not been assumed in the past to apply flush water from a water pipe or the like to the flush water jetting method from the upper edge of the bowl part in the production of flush toilets. It was the current situation.

[0005] By the way, international publication WO 98/166.
No. 96 proposes another method of jetting the washing water from the upper edge of the ball surface, but for the above-mentioned reason, only the storage tank was still used.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to improve the function of flushing a toilet bowl by passing flush water through a bowl bowl portion.

[0007]

Means for Solving the Problems and Their Functions and Effects In order to solve the above-mentioned problems, the flush toilet according to the present invention is characterized in that new flush water is passed through a bowl for storing stored water to flush the toilet. A flush port that performs flushing from the upper edge of the ball surface so that the flush water swirls in a substantially horizontal direction along the upper edge of the ball surface of the toilet bowl portion. And water guide means for introducing pressurized cleaning water from an external pressurized water supply source as the new cleaning water, and guiding the cleaning water to the ball portion ejection port.

[0008] In this case, the ball portion spout is formed by a nozzle attached to the upper edge of the ball surface of the ceramic toilet, and when the pressurized washing water is guided to the nozzle, a water guiding means of the pipe member is provided. It can be used to stabilize the jetting direction, stabilize the turning in the substantially horizontal direction, stabilize the jetting conditions such as the jetting speed of the washing water, simplify the path formation of the pressurized washing water, and increase the area of the washing water path. It is preferable from the viewpoint of uniformity and the like.

In the flush toilet of the present invention having the above-described structure, pressurized washing water introduced from an external pressurized water supply source through the water introducing means is guided to the ball port ejection port, and the pressurized washing water is supplied to the ball section ejection port. Erupts from The flush water spouted in this manner makes a substantially horizontal turn along the upper edge of the bowl surface of the toilet bowl portion, reaches the reservoir water of the toilet bowl portion, and is discharged to the outside of the toilet together with the pool water.

The washing water spouted from the ball spout is
Since it is pressurized washing water, it has the original pressure of the pressurized water supply source. However, since the cleaning water behavior after the jetting is a substantially horizontal turn along the upper edge of the ball surface, the jetted cleaning water does not directly collide with the ball surface from a substantially vertical direction and accumulates. It only joins the surface of the water diagonally. Therefore, scattering of washing water due to washing water collision and generation of sound due to the collision can be reliably suppressed as in the related art. In addition, since the cleaning water jetted at the original pressure of the pressurized water supply source cleans the ball surface with high energy in the course of turning, high flushing ability can be exhibited by such toilet flushing. In particular, the ball portion ejection port is formed by a nozzle attached to the upper edge of the ball surface, and pressurized washing water is guided to this nozzle by a pipe member, thereby stabilizing the ejection direction and turning substantially horizontally. Higher cleaning ability can be demonstrated by stabilizing the surface

[0011] The pressurized water supply source here has a water head pressure of about 25.
This is a generic term for those that exhibit a water supply pressure (original pressure) that cannot be obtained with a flush water storage tank of a toilet mounted type of about 0 mm. Therefore, the pressurized water supply source of the present invention can supply flush water with a large head pressure as compared to a toilet mounted type such as a rooftop of a house or a building roof, in addition to a pressurized water supply pipe such as a water pipe. Including things.

In addition, the substantially horizontal turning according to the present invention caused by the washing water spouted from the ball part spout is along the upper edge of the ball surface of the toilet bowl, and along the upper edge. It means turning around the entire circumference of the toilet bowl portion.
Therefore, even in the case of turning in the substantially horizontal direction along the upper edge portion of the ball surface, only a half of the circumference of the bowl portion of the toilet bowl is turned, and the turning water after that is reached is not included.

The flush toilet of the present invention having the above configuration is
The following modes can be adopted. That is, a plurality of the ball-port ejection ports may be prepared at the upper edge of the ball surface, and the water guide means may guide the pressurized cleaning water to the plurality of ball-port ejection ports, respectively. With this configuration, the pressurized cleaning water spouted from the respective ball portion spouts performs the ball surface cleaning with high energy during the turning process, so that the cleaning ability can be further enhanced. In this case, in addition to the case where each ball part ejection port causes the turning behavior in the same direction, the one prepared to cause the turning behavior in the opposite direction may be used.

Further, a siphon trap pipe is provided as a drain pipe from the bowl portion of the toilet bowl, and the inflow of the stored water into the siphon trap pipe is performed by flushing flush water from the spout port with the ball. It is also possible to have a ball portion water passing means for allowing fresh flush water to flow through the bowl portion of the toilet so as to be independently raised. In this case, since the flush water flows into the bowl portion of the toilet bowl due to the flush water flowing into the bowl portion of the toilet bowl by the ball portion water flowing means, the suction of the flush water into the siphon trap line is ensured,
As a result, it is possible to quickly fill the washing water in the siphon trap line with the suction of the washing water. Therefore,
The siphon effect can be accelerated by the siphon trap line, and the discharge efficiency of the stored water and the dirt mixed with or precipitated in the stored water can be increased. In addition, the dirt floating in the stored water, the washing water that caused the swirling behavior reaches the stored water,
The water is mixed with the water.

[0015] The ball portion water-passing means may be used to supply flush water so as to cause a flow of flush water toward a siphon trap conduit inlet, or to flush flush water from a position lower than the reservoir water level. The cleaning water can be passed through the water supply portion or the stored water can be swirled in the same direction as the washing water spouted from the ball portion jet port. Such arrangement is useful for promoting the induction of the siphon action through the quick filling of the washing water in the siphon trap line described above. In particular, in the case of flushing water from a position lower than the flush water level or flushing water that causes the above-described swirl to the flush water, the dirt mixed or precipitated in the flush water is directly pushed into the trap pipeline. Therefore, the efficiency of discharging these wastes can be further improved.

Further, the ball portion water passing means may be a device for passing pressurized washing water from a pressurized water supply source to the toilet bowl portion. In this way, the flow of the cleaning water at the high pressure of the pressurized water supply source is beneficial for promoting the induction of the siphon action through the filling of the cleaning water in the siphon trap line, and the waste mixed or deposited in the stored water. Can be further improved. In addition, since the water supply source of the ball section water supply means and the water supply means can be shared, on-site construction work,
In other words, it is possible to simplify the work of connecting the water supply path from the water supply source to the ball water passage means and the water guide means, and to simplify the pipe configuration. Needless to say, the water supply source may be different, and the ball portion water supply means may receive water from a flush water tank mounted on the toilet. In this case, even if the flow rate of the pressurized water supply source is small due to local reasons and the pressurized washing water can be supplied only to the water supply means, the water can be supplied without hindrance to the ball section water supply means. Therefore, the area where the flush toilet of the present invention can be installed can be expanded.

As described above, when the pressurized washing water is passed from the ball portion water passing means to the toilet bowl, the pressurized washing water passing through the ball portion water passing device and the pressurized washing water passing through the water guiding device are used. It is possible to have control means for controlling the flow of water to the ball part ejection port. The ball section water passage means is branched from the water guide means, and control means is disposed at the branch point. The control means is connected to the pressurized washing water flow through the water guide means and the ball section water flow. The pressurized washing water passing through the means can be switched and controlled in this order. By doing so, control of the pressurized washing water flow through the water guiding means and control of the pressurized cleaning water flow through the ball section water flowing means, for example, by successively switching both the cleaning water flow, the two cleaning water flow The above effects can be synergistically exhibited.

Further, if the total amount of the flush water discharged to the outside of the toilet with the flushing of the toilet is set to about 7 liters or less, the demand for water saving can be satisfied. As described above, even if the total amount of the discharged cleaning water is regulated, the pressurized cleaning water flow by the above-described swirling water guiding means and the pressurized cleaning water flow by the ball part water flowing means contributing to the siphon action induction. As a result, it is possible to secure a flushing capacity equal to or better than that of existing toilets. In addition, since the regulation of the total amount of discharged cleaning water is to regulate the total flow of both cleaning water, the total amount of discharged cleaning water can be regulated as described above through the restriction of the total flow of both cleaning water.

[0019]

Other Aspects of the Invention The present invention can also adopt the following other aspects, and the first other aspect is to supply new flush water to a bowl bowl for storing stored water. Then, in the cleaning method of performing toilet flushing, pressurized flushing water from an external pressurized water supply source is introduced as the new flushing water, and the flushing water is applied to the upper edge of the ball surface of the bowl portion of the toilet bowl. A step of guiding the cleaning water to the ball portion outlet and a step of injecting the guided cleaning water from the ball portion outlet so that the cleaning water swirls in a substantially horizontal direction along an upper edge of the ball surface of the toilet bowl portion. And

According to this washing method, the toilet bowl can be washed with a high washing capacity due to the swirling behavior of the pressurized washing water.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, embodiments of a flush toilet of the present invention will be described below. FIG. 1 is an explanatory view showing a siphon-jet toilet 110 according to an embodiment of the present invention, with a part of the upper surface thereof being cut away. FIG.
FIG. 2 is an explanatory diagram showing a schematic vertical cross-section along line 2-2 of FIG. 1. FIG. 3 is a schematic sectional view taken along line 3-3 in FIG. The siphon jet toilet 110 jets washing water from a jet outlet 122 to be described later and jets washing water at the upper edge of the ball surface in accordance with washing. Hereinafter, each part of the toilet 110 will be described with reference to FIGS. 1 to 3.

As shown in FIG. 1 and FIG.
Includes a ball portion 120 for receiving filth. Ball part 1
20 has a concave portion 126 at the bottom thereof as a waste pool, and the upper peripheral wall of the concave portion is in contact with the flooded surface 123 that is in contact with the reservoir RW even when the toilet 110 is not washed, and with the reservoir RW when the toilet 110 is not washed. The exposed surface 124 is not used.

As shown in FIG. 1 and FIG.
Numeral 22 is provided on the wall surface of the ball portion surrounding the concave portion 126, and a jet water supply pipe 146 described later is connected in a watertight manner. When connecting the Z water supply pipe 146, a bush or the like is used, and there is no particular problem in connecting the pipeline from the outside of the ball portion. In addition, this jet port 122 is provided with the concave portion 12.
6 and on the same side as the rim ejection nozzle 144.

Inside the toilet bowl 110, there are two systems of washing water flow systems for supplying washing water to the bowl 120, and the bowl 1
A siphon trap line 130 is provided as a discharge line for discharging the filth in 20 toward the drainage riser pipe 190.

The siphon trap line 130 is
6 is formed through the discharge port 125. The siphon trap line 130 includes a connection path 131 that is bent obliquely upward from the discharge port 125, and a connection path
Ascending path 1 that extends in the bending direction and then curves in the lateral direction
32, followed by a descending path 133 that curves downward from the lateral direction.

These channels are formed integrally with the toilet 110 which is a pottery by forming the channel into a gypsum mold or a resin mold, but the channels are formed by members different from the toilet 110. It is also possible. For example, all or some of these flow paths are formed of another member such as resin, and the discharge port 12 is formed.
5 may be connected.

The end of the descending path 133 is connected via a resin drain socket 170 to a drain riser pipe 190 provided on the wall or floor on the building side. In this case, the lower end opening of the drain socket 170 becomes the terminal drain port of the siphon trap line 130.

Ascending channel 13 of siphon trap line 130
A bent portion (hereinafter, referred to as a bent portion) from the second passage 2 to the descending passage 133 is flush water flowing in from the discharge port 125, and when it becomes full, the tip of the descending passage 133 and the ball portion 1 of the accumulated water.
A pressure difference is generated between the first and second sides, and a downward pulling force is generated. Due to this retraction force, the stored water located at a position lower than the bent portion is drained at a stroke together with the waste.
It is led to 0. Thus, a siphon effect is induced.

Next, the washing water flow system will be described. The rear of the toilet 110 is a hollow raised portion 112 which is raised upward.
It has been. A cover 17 is attached to the protruding portion 112, and a valve unit 115 is disposed inside the protruding portion. The valve unit 115 is connected to a pressurized water supply source (not shown), for example, a primary water supply pipe 116 branched from a water pipe, and receives tap water. The valve unit 115 switches between an open / close valve mechanism for controlling the flow of the wash water to the downstream through the opening and closing of the pipeline, and a flow through the jet water supply pipe 146 and a flow through the rim water supply pipe 143 described later. And a switching valve mechanism for controlling. The primary-side water supply pipe 116 is connected to an opening / closing valve mechanism of the valve unit 115.

Here, the operation of the valve mechanism in the valve unit 115 will be briefly described. Valve unit 11
5, when the washing button 16 provided on the lid 17 is operated, the pipe is opened, the tap water flows downstream at the pressure of the tap water, the pipe is closed, and the water is stopped. The valve unit 115, while the on-off valve mechanism is in the pipeline open state,
The water supply destination is switched to one of the Zet water supply pipe 146 and the rim water supply pipe 143. Therefore, the valve unit 115
The amount of flush water discharged from the siphon trap conduit 130 to the outside of the toilet (discharge flush water amount) is limited to about 5 to 7 liters by controlling the pipeline open time in. In this embodiment, the volume is set to about 6 liters at the time of stool washing. Note that the valve unit 115 can have various structures, such as a configuration using a mechanically driven on-off valve and a switching valve, or an electromagnetic on-off valve and a switching valve connected to an electric signal (ON / OFF) from a control device. Signal).

The above-mentioned drainage flushing water amount is the amount when the excreted stool is conveyed and discharged from the toilet to clean the toilet. As in the present embodiment, the flush toilet shown in FIG. 1 and the like can be used for both toilet and urine, so that the amount of flush water can be set to be large or small at the time of stool washing and urine washing. In setting the amount of washing water, the amount of washing water in stool washing is naturally larger because stool washing requires transport and discharge of solid waste, and there is no solid matter in urine. In other words, although the urine washing can be performed with the set washing water amount at the time of stool washing, the stool washing is insufficient with the set washing water amount at the time of urine washing. Therefore, in order to set the flush water amount that can surely execute the toilet flush regardless of whether it is urine or urine, the flush water amount at the time of flushing the stool is determined, and the pipeline opening time corresponding to this flush water amount may be set. The operation direction of the operation button and the operation handle for toilet flushing is changed between urine and urine, and the amount of flush water smaller than the set flush water amount (drain flush water amount) determined as described above during urine flush. The pipe opening / closing time may be determined so that

In this embodiment, the valve unit 11
In No. 5, switching of the water passage destination by the switching valve mechanism during the opening of the pipeline was performed as follows. After operating the wash button,
Rinse water (tap water) is supplied to the rim water supply pipe 143 for a predetermined time (initial water supply). After that, the water supply destination is
6 and the washing water is passed through the Z water supply pipe 146 for a predetermined time. Next, the water supply destination is switched to the rim water supply pipe 143 again, and the washing water (tap water) is supplied to the rim water supply pipe 143 for a predetermined time (final water supply). The total time of these water passages is the above-mentioned pipe opening / closing time, and the water passage time for each water passage is set in advance. Note that the final water flow using the rim water supply pipe 143 is for storing a predetermined amount of stored water RW in the ball portion 120 in preparation for the next and subsequent flights.

The above-mentioned valve unit 115 is connected to a Z water supply pipe 146 and a rim water supply pipe 143 for a switching valve mechanism of the valve unit 115. The primary side water supply pipe 116 and the rim water supply pipe 143 are washed with water from an external water pipe (tap water).
Is a conduit leading to the toilet 110, the zet water supply pipe 146 can be said to be branched from the conduit, and the valve unit 115 is disposed at the branch point.

The rim water supply pipe 143 guides washing water to the inside of the base of the rim 121 surrounding the ball 120 at its upper end. FIG. 4 is an explanatory diagram for explaining a pipe configuration of the rim water supply pipe 143 and a state of fixing thereof, and FIG. 5 is a view 5-5 in FIG.
It is a line sectional view. As shown in FIG. 4, the rim water supply pipe 1
43 is divided into a straight tubular valve-side pipe portion 143a connected to the valve unit 115, and a bent pipe portion 143c connecting the ball-side pipe portion 143b fixed to the ball portion 120 to both pipe portions. ing. Valve side pipe section 143a
The ball-side pipe section 143b is formed of a resin or metal pipe material, and the bent pipe section 143c is made of an elastic material (for example, rubber, elastomer, or soft resin material) having high water resistance and durability. It is formed and exhibits flexibility. The ball-side pipe section 143b divides the pipe section into four parts in the middle of the pipe,
It has a rectifying plate 143d for rectifying the flow of the washing water passing therethrough.

Here, how the rim water supply pipe 143 is incorporated into the toilet will be described. First, the valve side pipe section 143
a, the bent pipe section 143c, and the ball-side pipe section 143b are prepared, and are bonded in this order with an adhesive or the like in a watertight manner. By doing so, the rim water supply pipe 143 that can be freely bent at the bent pipe section 143c.
Becomes The valve side pipe section 143 of the rim water supply pipe 143
a is fixed to the valve unit 115, the ball-side pipe portion 143 b is inserted into the bottom opening 112 a of the raised portion 112, and the front end of the pipe portion is inserted into a through hole 120 a formed in the base wall surface of the rim 121. In this case, the rim water supply pipe 143 forms a path bent at the bent pipe section 143c as shown in FIGS. 1, 2, and 4. Next, a sealing member 143f is interposed between the flange portion 143e of the ball-side conduit portion 143b and the base wall surface, and the rim ejection nozzle 144 is screwed into the thread portion of the ball-side conduit portion 143b from the book portion surface side. I do. By the screwing of the rim ejection nozzle 144, the rim water supply pipe 143 is fixed at both ends thereof, and the cleaning water from the valve unit 115 is guided to the rim ejection nozzle 144.

The through-hole 120a to which the rim ejection nozzle 144 is mounted and fixed is located on the upper left side of the ball portion 120, and is substantially horizontal along the upper edge of the ball surface (specifically, the exposed surface 124) of the ball portion 120. It is formed so as to communicate with the guide recess 124a formed in a groove in the direction. Since the rim ejection nozzle 144 is fixed to the through hole 120a, the nozzle opening faces the guide recess 124a. Therefore, the behavior of the washing water ejected from the rim ejection nozzle 144 (hereinafter, the washing water ejected in this manner is referred to as rim shot washing water RS) is as follows. FIG. 6 is an explanatory diagram for explaining the behavior of the rim shot cleaning water.

As shown, the rim shot cleaning water RS
Swings in a substantially horizontal direction along the upper edge of the ball surface while being guided by the guide recess 124a of the ball portion 120,
The ball orbits around the upper edge of the ball surface over almost the entire circumference. After that, the rim shot cleaning water RS is swirled to expose the exposed surface 12.
4 and reaches the pooled water RW in the concave portion 126 and, at a reduced speed of the swirl flow, the flow is branched off from the swirl flow at various places and transmitted along the exposed surface 124. The depressed shape of the guide recess 124a is not limited to the shape shown in FIGS. 2 and 3, and the washing water that rotates while being guided by the guide recess 124a is substantially entirely around the upper edge of the ball surface. Any shape may be used as long as it is transmitted along the exposed surface 124 while circling around the circumference.
Further, since the branch flow from the swirl flow is accompanied by a decrease in the speed of the swirl flow, the manner in which the branch flow occurs is determined by the washing water ejection speed (initial speed) from the rim ejection nozzle 144.

The rim shot cleaning water RS causing such a turning behavior is nothing less than tap water supplied from the primary water supply pipe 116 via the valve unit 115. Therefore,
Since the rim shot cleaning water RS has the above-described turning behavior with the water pipe base pressure, the surface of the ball surface is washed with high energy during the turning process. By such toilet washing (ball surface washing), a high washing ability can be exhibited.

In this embodiment, the tap water having the tap water source pressure is guided to the rim ejection nozzle 144 by the rim water supply pipe 143 having a substantially uniform pipe diameter, and the washing water ejected from the rim ejection nozzle 144 is subjected to rim shot cleaning. Water RS. Accordingly, the rim water supply pipe 143 allows the washing water to flow through the rim ejection nozzle 144 with a stable flow. When the washing water is ejected, the rim ejection nozzle 144 stabilizes the ejection direction and ejects the washing water, such as the ejection speed. Since the situation can be stabilized, the above-described substantially horizontal turning behavior of the rim shot cleaning water RS after the ejection can be stabilized. From these facts, it is possible to further increase the cleaning ability accompanying the turning behavior of the rim shot cleaning water RS.

In this way, the rim shot cleaning water RS moves while slidably turning on the ball surface, merges obliquely with the pool water RW of the ball portion, and efficiently applies a counterclockwise turning force to the pool water RW. Give well. As a result, the stored water RW in the ball portion 120 becomes a counterclockwise swirling flow, and
It is discharged from 25. As described above, since the rim shot cleaning water causes the stored water to swirl, the effect of discharging the stored water and the dirt in the stored water is enhanced.

The washing water flowing through the rim water supply pipe 143 is straightened by the straightening plate 143d, reaches the rim ejection nozzle 144, and is ejected from the nozzle. Therefore, the washing water can be ejected from the rim ejection nozzle 144 in a state where the flow is adjusted, and the ejection state such as the ejection direction is also stabilized by the nozzle, so that the above washing water behavior after ejection is caused stably. be able to.

As shown in FIG. 4, the rim water supply pipe 143 upstream of the current plate 143d is
Since the water supply path is inclined toward 44 (specifically, the rectifying plate 143d), it is possible to prevent the cleaning water from flowing back carelessly from the rim ejection nozzle 144 side. Rim jet nozzle 1
44 is located at the base of the rim 121 at the upper end of the ball surface,
The rim portion 121 is overhanging so as to cover the rim ejection nozzle 144. Therefore, the rim portion 121 makes it difficult for the rim ejection nozzle 144 to be seen from above, and the appearance can be improved. Also, the rim ejection nozzle 144
The overhang of the peripheral rim portion 121 prevents the jetted cleaning water from accidentally jumping out of the ball portion.

In the present embodiment, the rim ejection nozzle 144 is fixed to the tip of the rim water supply pipe 143. However, the opening at the tip of the rim water supply pipe 143 or the through hole 120a in the ball wall may be used as the washing water ejection port. In this case,
The rim water supply pipe 14 is inserted into the through hole 120a via a bush or the like.
3 may be fixed directly.

Next, other than the rim water supply pipe 143, a jet water supply pipe 146 through which washing water flows through the ball portion 120 will be described. As shown in FIGS. 1 to 3, this water supply pipe 146 forms a water supply path from the switching mechanism of the valve unit 115 to the water jet 122 of the recess 126 described above. Therefore, ZET water supply pipe 146
Guides washing water from the valve unit 115 to the recess 126 independently of washing water ejection from the rim ejection nozzle 144.

Here, the behavior of the accumulated water RW generated in the concave portion 126 due to the ejection of the washing water from the jet outlet 122 will be described. FIG. 7 is an explanatory diagram schematically showing the periphery of the concave portion 126 for explaining the water accumulation behavior of the concave portion 126. As shown, the jet port 122 has a ball portion 120.
Since the opening is opened with respect to the concave portion 126 at the bottom, the washing water is jetted to the ball portion 120 from the position lower than the water surface of the stored water RW by the jet port 122. The flushing of the washing water occurs in the concave portion 126 in the region separated by the side as schematically shown in FIG. Therefore, the jet port 12
As shown in the figure, the cleaning water jetted from the nozzle 2 (hereinafter, this jetted cleaning water is referred to as ball-portion jetted cleaning water BS)
26, a turning behavior occurs, and the pooled water RW in the concave portion 126
Turns with. This cleaning water behavior occurs separately from the rim shot cleaning water RS from the rim ejection nozzle 144 described above, and the siphon trap line 13 communicates with the recess 126.
This causes the inflow of the stored water RW to 0 and the cleaning water BS that has been jetted out of the ball.

In this embodiment, as described above, the switching of the water flow by the switching valve mechanism of the valve unit 115 is performed by the rim water supply pipe 143 (initial water flow) → the zet water supply pipe 146 → the rim water supply pipe 143 (the final water flow). ) In that order. Therefore, the above-mentioned ball part ejection cleaning water BS that has passed through the Z water supply pipe 146 is formed after the rim shot cleaning water RS at the time of initial water supply causes the stored water RW to turn. In addition, the cleaning water B that gushes out the ball portion
The stored water swirl associated with S and the stored water swirl associated with the rim shot cleaning water RS have the same direction due to the positional relationship between the rim ejection nozzle 144 and the jet outlet 122 described above. For this reason, the turning in the same direction is applied to the stored water RW in a state where the turning caused by the rim shot cleaning water RS occurs, and the ball portion jetting cleaning water BS
It will be caused by. Therefore, since the swirling of the stored water is amplified by the ball-portion cleaning water BS, the flow of the cleaning water into the siphon trap line 130 is promoted.

The rim ejection nozzle 144 and the rim water supply pipe 143 may be formed on the right side in FIG. In addition, the Z water supply pipe 146 is connected to the Z jet outlet 122 by being formed of a pipe member. A path (Zet path) communicating with the concave portion 126 is formed outside the ball portion and integrally with the toilet when the toilet body is formed, and is fired. Then, the jet water supply pipe 146 connected to the valve unit 115 may be inserted into the jet path described above, and the ball portion jetted cleaning water BS may be jetted from the opening of the jet path.

According to the toilet bowl 110 of the present embodiment described above, the flush water is jetted from the rim jet nozzle 144 by the initial water flow, and the flush water in the substantially horizontal direction along the guide recess 124a at the upper edge of the ball surface. Make a turn. In addition, as described above, the swirling of the washing water is caused by the jet of the tap water having the tap pipe pressure. Therefore, the surface of the ball surface is cleaned with high energy during the turning process. By such toilet washing (ball surface washing), a high washing ability can be exhibited.

Further, by adopting the swirling behavior, the washing water (rim shot washing water RS and branch washing water) is obliquely merged with the pool water RW of the ball portion. For this reason, even if the washing water is ejected from the rim ejection nozzle 144 using washing water having a higher pressure (tap water source pressure) than when using a toilet-mounted washing water tank, the washing water collides with the stored water. It is possible to reliably suppress the scattering of the washing water and the generation of the sound due to the collision.

In addition, after the initial water flow, the jet port 1
The washing water is spouted from the nozzle 22 to cause swirling behavior in the stored water RW, thereby facilitating suction of the washing water into the discharge port 125 of the siphon trap line 130. Therefore, the siphon trap line 130 can be quickly filled with water, and the siphon trap line 130 can induce the siphon action at an early stage, and the accumulated water R
The efficiency of discharging W and waste can be increased. In addition, since the swirling of the washing water caused by the jet of the washing water from the jet outlet 122 is made in the same direction as the swirling of the washing water caused by the ejection of the washing water from the rim ejection nozzle 144, the swirling of the collected water is amplified. Therefore, the suction of the washing water into the discharge port 125 can be further promoted, whereby the waste discharge efficiency can be further improved.

Next, another embodiment will be described. FIG.
FIG. 9 is an explanatory view showing the toilet 110A of the second embodiment with a part of the upper surface cut away, and FIG. 9 is an explanatory view showing a schematic vertical cross section of the toilet 110A along a broken line of line 9-9 in FIG. It is. In the following description, members that perform the same functions as those in the above-described embodiment will use the same reference numerals used in the above-described embodiment.

As shown, the toilet bowl 110 of the second embodiment is shown.
As shown in FIG. 8, A is a rim water passage 1 which extends from the rear left side of the ball portion to the right side of the tip portion of the ball portion, as shown in FIG.
21a. The rim water passage 121a is formed by making the rim 121 into a hollow shape over the illustrated range when the toilet is manufactured. The rim water passage 121a is provided with a rim water discharge hole 121b at the tip of the ball portion. As shown in FIG. 9, the rim water discharge hole 121b is formed so as to be able to blow out washing water toward the exposed surface 124 near the rim base.

The toilet 110A has a rim water supply pipe 143, a rim ejection nozzle 144, and the like for performing the rim shot washing water RS described above, and is common to the above-described embodiment. For the second rim water pipe 150
Having. The second rim water supply pipe 150 is formed of a flexible pipe member formed of resin or the like, and is provided with a valve unit 11.
5 switching valve mechanism. In this case, rim waterway 1
At the time of connection to the rim portion 21a, the rim portion 121 is water-tightly connected to the through hole 121c by using a bush 151 or the like. In addition, since the arrangement of the second rim water supply pipe 150 from the valve unit 115 to the through hole 121c is performed inside the toilet, an appropriate jig is used.

In the toilet 110A of the second embodiment, as described above, the valve unit 115 executes the initial water supply using the rim water supply pipe 143.
After that, switch the water passage to the second rim water supply pipe 150,
The water supply destination is switched to the rim water supply pipe 143 again, and the final water supply is executed. When the water is supplied to the second rim water supply pipe 150 in this manner, the washing water (tap water) flows from the second rim water supply pipe 150 into the rim water passage 121a, and the rim water discharge at the tip of the ball portion. It is ejected from the hole 121b. The washing water spouted from the rim water discharge hole 121b flows down along the ball surface of the ball portion 120 as shown by a white arrow RBS in the figure, and flows into the discharge port 125 at a position facing the rim water discharge hole 121b. Inflow. At that time, the accumulated water R
W and dirt are pushed directly from the outlet 125 into the siphon trap line 130. Therefore, according to the second embodiment as well, it is possible to increase the efficiency of discharging dirt, in addition to the improvement of the cleaning ability accompanying the ejection of the washing water from the rim ejection nozzle 144. In the toilet 110A of the second embodiment, flush water is jetted onto the ball surface at the tap water source pressure. However, this squirting is caused by flushing the toilet bowl (washing the ball surface) with the rim ejection nozzle 14.
4 is executed after the cleaning water is ejected from the rim water discharge hole 121b.
It is only about か ら to ４ of the time. Therefore, the sound caused by the scattering and the collision of the cleaning water due to the collision of the cleaning water ejected from the rim water discharge holes 121b with the ball surface is suppressed as compared with the case where the cleaning water is ejected toward the ball surface over the entire cleaning period. There is no practical problem.

FIG. 10 is an explanatory view showing the toilet bowl 110B of the third embodiment with a part of the upper surface thereof cut away. In the third embodiment, all the flush water for flushing the toilet is supplied to the rim ejection nozzle 144.
It is covered by the washing water spouted from. Therefore, the toilet 11
0B merely includes a rim water supply pipe 143 and a rim ejection nozzle 144 as shown in FIG.
After that, the washing water (tap water) is supplied to the rim water supply pipe 143 for the entire washing period. Also in this case, the cleaning water (rim shot cleaning water RS) which causes the above-described turning behavior can exhibit high cleaning performance, and can suppress generation of the cleaning water scattering and noise.

FIG. 11 is an explanatory view showing a schematic longitudinal section of a toilet bowl 110C of a fourth embodiment. In the fourth embodiment, the present invention is applied to a so-called flush toilet.
The toilet 110C has a flush water drop passage 12 on the front side of the toilet.
7, and drains out of the toilet bowl the accumulated water and wastes overflowing from the recess 126 with the flush water supply. This toilet 110C
In order to perform the cleaning water jetting that causes the above-described swirling behavior, a rim water supply pipe 143 and a rim jetting nozzle 144 are provided similarly to the third embodiment, and the rim is supplied from the valve unit 115 over the entire cleaning period. Wash water (tap water) is supplied to the water supply pipe 143. Also in this case, the cleaning water (rim shot cleaning water RS) which causes the above-described turning behavior can exhibit high cleaning performance, and can suppress generation of the cleaning water scattering and noise. In addition, even if the cleaning water is supplied by the rim shot cleaning water RS, the pool water and contaminants in the recess 126 can overflow into the cleaning water falling passage 127 without any trouble.

The embodiments of the present invention have been described above. However, the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the gist of the present invention. Of course.

For example, in the above embodiment, the rim water supply pipe 14
Although it is configured to have one set of the rim ejection nozzle 144 and the rim ejection nozzle 144, the following modification can be made. FIG. 12 is an explanatory diagram illustrating a toilet 110D according to a modification. This toilet 1
10D is at the upper edge of the ball portion, that is, at the base of the rim portion 121,
It has upper and lower rim ejection nozzles 144. The rim jet nozzle 144 is connected to a rim water supply pipe 143 from the valve unit 115. In this case, the guide recess 124a is widened in preparation for jetting of the washing water from each rim jet nozzle 144. Then, the valve unit 115 performs valve control so that the cleaning water is simultaneously ejected from the respective rim ejection nozzles 144. In this case, a swirling flow of the cleaning water occurs in a wide state, and the number of opportunities for the swirling flow to come into contact with the ball surface surface increases, so that high cleaning performance can be exhibited.

Further, in installing the plurality of rim ejection nozzles 144 as in the above-described modified example, the following may be performed. That is, as shown in FIG. 3, one rim ejection nozzle 144 may be provided on the left side, and the other may be provided on the right side, as shown in FIG. At this time, if the left and right rim ejection nozzles 144 are vertically shifted, if the washing water is ejected simultaneously from the left and right nozzles, the clockwise swirling washing water and the counterclockwise swirling washing water are not used. It is preferable because it is possible to prevent a ready collision.

Further, the present invention relates to a siphon jet type toilet 1
Although the description has been made of the case where the present invention is applied to the siphon toilet 10 or the siphon toilet or the flush toilet, the invention can be grasped as an invention in which the above toilet and other devices and members are combined.
For example, a sanitary washing device combined with a functional toilet seat that realizes various functions such as local washing and heating, a toilet kit device combined with a storage cabinet and a hand washing device, a wall material, a floor material, and a ceiling material as a structure in a toilet room The present invention can also be applied to a system toilet device or the like that combines the above.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a siphon jet toilet 110 according to an embodiment of the present invention with a part of the upper surface thereof cut away.

FIG. 2 is an explanatory diagram showing a schematic vertical cross section of the toilet 110 along a line 2-2 in FIG. 1;

FIG. 3 is a schematic sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is an explanatory diagram for explaining a pipe configuration of a rim water supply pipe 143 and a state of fixation thereof.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 4;

FIG. 6 is an explanatory diagram for explaining the behavior of rim shot cleaning water.

FIG. 7 shows a concave portion 1 for explaining the accumulated water behavior of the concave portion 126;
It is explanatory drawing which represented 26 periphery typically.

FIG. 8 is an explanatory view showing the toilet bowl 110A of the second embodiment with a part of the upper surface thereof cut away.

FIG. 9 is a schematic vertical cross-sectional view of the toilet 110A shown in FIG.
It is explanatory drawing shown along the broken line of a line.

FIG. 10 is an explanatory view showing a toilet bowl 110B of a third embodiment with a part of the upper surface thereof cut away.

FIG. 11 is an explanatory view showing a schematic vertical cross section of a toilet bowl 110C of a fourth embodiment.

FIG. 12 is an explanatory diagram illustrating a toilet 110D according to a modification.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 16 ... Cleaning button 17 ... Lid 110, 110A-110D ... Toilet bowl 112 ... Ridge part 112a ... Bottom opening 115 ... Valve unit 116 ... Primary side water supply pipe 120 ... Ball part 120a ... Through hole 121 ... Rim part 121a ... Rim water passage 121b ... Rim spout hole 121c ... Through hole 122 ... Zet spout 123 ... Water covered surface 124 ... Exposed surface 124a ... Guide recess 125 ... Drain outlet 126 ... Concave 127 ... Wash water fall passage 130 ... Siphon trap conduit 131 ... Connection passage 132 ... Ascending path 133 ... Descending path 143 ... Rim water supply pipe 143a ... Valve side pipe section 143b ... Ball side pipe section 143c ... Bent pipe section 143d ... Rectifying plate 143e ... Flange section 143f ... Seal member 144 ... Rim ejection nozzle 146 ... Z water supply pipe 150 ... second rim water supply pipe 151 ... bush 170 ... drainage Socket 190 ... drainage launch tube BS ... ball portion jet washing water RS ... rim shot cleaning water RW ... accumulated water

Claims (14)

[Claims] 1. A flush toilet for flushing toilet bowl by flowing new flush water through a bowl bowl for storing stored water, wherein the flush water flows along an upper edge of a ball surface of the bowl bowl. In order to cause swirling in a substantially horizontal direction, a ball portion ejection port for ejecting washing water from the upper edge of the ball surface, and pressurized washing water from an external pressurized water supply source are introduced as the new washing water, A flushing toilet, comprising: water guide means for guiding flushing water to the ball portion ejection port. 2. The flush toilet according to claim 1, wherein a plurality of the ball-port outlets are provided at an upper edge portion of the ball surface, and the water-guiding means is provided to each of the plurality of ball-port outlets. A flush toilet that is designed to guide pressure flush water. 3. The flush toilet according to claim 1 or 2, further comprising a siphon trap line as a drain line from the toilet bowl portion, and further comprising the reservoir water into the siphon trap line. So that the inflow of water occurs independently of the washing water spout from the ball part spout.
A flush toilet having a ball portion water passing means for passing fresh flush water through the toilet bowl portion. 4. The flush toilet according to claim 3, wherein the ball-portion water-passing means supplies the flush water to the toilet bowl portion so as to cause a flow of the flush water toward a pipe inlet of the siphon trap pipe. Toilet flushing water. 5. The flush toilet according to claim 4, wherein the ball-portion water-passing means passes flush water to the toilet bowl portion from a position lower than a surface of the stored water. 6. The flush toilet according to claim 3, wherein the ball portion water passing means causes the stored water to swirl in the same direction as the swirling direction of the wash water spouted from the ball portion spout. A flush toilet, wherein flush water is passed through the bowl bowl portion. 7. The flush toilet according to any one of claims 3 to 6, wherein the ball portion water supply means passes pressurized flush water from the pressurized water supply source to the toilet bowl portion. , Flush toilet. 8. The flush toilet according to claim 7, wherein a flow of pressurized flush water from the pressurized water supply source to the toilet bowl portion via the ball portion water passage means and the water guide means are provided. A flush toilet having control means for controlling the passage of pressurized washing water from the pressurized water supply source to the ball portion ejection port. 9. The flush toilet according to claim 8, wherein the ball portion water passage means branches off the water guide means to flow pressurized flush water from the pressurized water supply source to the toilet bowl portion. A flush toilet, wherein the control means is disposed at a branch point between the ball part water passing means and the water guiding means. 10. The flush toilet according to claim 8 or 9, wherein the control means is configured to supply pressurized flush water through the water guide means and pressurized flush water through the ball section water means. A flush toilet that controls switching between water and water in this order. 11. The flush toilet according to any one of claims 3 to 6, wherein the ball portion water supply means supplies flush water from a water supply source different from the pressurized water supply source to the toilet bowl portion. A flush toilet that passes water. 12. The flush toilet according to claim 1, wherein the ball portion outlet is formed by a nozzle mounted on an upper edge of the ball surface of a ceramic toilet. Flush toilet. 13. The flush toilet according to claim 12, wherein the water guiding means for guiding the pressurized flush water to the nozzle is a conduit member. 14. The flush toilet according to any one of claims 1 to 13, wherein a total amount of flush water discharged to the outside of the toilet along with flushing the toilet is about 7 liters or less.