JP6367466B2 - Flush toilet - Google Patents

Description

  The present invention relates to a flush toilet, and more particularly, to a flush toilet that discharges flush water from a plurality of water outlets.

In flush toilets, a cleaning method is known in which cleaning water is discharged from one or more water outlets to the toilet bowl, and filth is pushed out to a drain pipe by the force of the cleaning water. Hereinafter, the force that pushes filth out of the toilet bowl into the drain pipe is referred to as “discharge force”. Moreover, in order not to leave filth residue on the inner wall surface of the toilet bowl, a water flow for washing the inner wall surface of the toilet bowl over a wide range is also necessary. Hereinafter, the power to wash the toilet bowl inner wall is referred to as “cleaning power”. In Patent Document 1, a swirling water flow is formed by discharging a first water flow along the inner wall of the toilet bowl from a first water outlet provided on the upper left side of the toilet bowl, and the inner wall of the toilet bowl is washed away (Patent Document 1). FIG. 4). Further, the second water flow discharged from the second water outlet provided on the upper right side of the toilet bowl is joined with the first water flow after turning, thereby enhancing the discharge power.
International Publication No. 2014/027499

  As described above, the flush toilet is required to have two functions, that is, a discharge power and a cleaning power. According to the flush toilet described in Patent Document 1, both side surfaces and the front end surface of the toilet bowl inner wall can be washed away in a wide range by the first water flow.

  Furthermore, the present inventors have recognized that the rear end surface of the inner wall of the toilet bowl, in particular, the upper portion of the rear end surface (hereinafter simply referred to as “rear region”) is easily soiled by the splash of filth. The first water flow of Patent Document 1 cleans the side surface, front end surface, and rear end surface lower portion of the toilet bowl inner wall, but may not reach the rear region (upper end surface upper portion) sufficiently. Further, the second water flow is for strengthening the downward flow force of the first water flow, that is, the discharge force, and may not reach the rear region.

  The present invention has been completed on the basis of the above-mentioned problem recognition by the present inventor, and its main purpose is to effectively wash the rear region of a toilet bowl that is easily soiled by scattering of filth in a flush toilet. To provide technology.

The flush toilet in the present disclosure includes a toilet body and a water supply unit. The toilet body includes a toilet bowl having first and second water outlets and a drain pipe for discharging the accumulated water in the toilet bowl. The water supply unit supplies cleaning water to the first and second water outlets.
The second water discharge port discharges water horizontally in the rear region between the first and second water discharge ports to form a second water flow. The first water discharge port is provided in front of the second water discharge port in the direction of the second water flow, and forms a first water flow that discharges water to the upper part of the toilet bowl and turns in the circumferential direction.
The opening of the second water outlet is located above the opening of the first water outlet.

  The flush toilet having the above-described configuration is provided with a water discharge port (second water discharge port) for washing the rear end surface, particularly the rear region, which is an upper region thereof, which is easily soiled with splashes of filth, thereby cleaning the flush toilet. Is even higher. The second water outlet is provided at a position higher than the first water outlet so that the vicinity of the upper end of the rear region is not left as much as possible.

  In the flush toilet configured as described above, the first water conveyance means is further formed in the circumferential direction from the first water outlet on the inner wall of the toilet bowl portion, and the second water conveyance means is circumferentially provided from the second water outlet. It is preferably formed in the direction. In this case, it is preferable that the second water guiding means is continuously connected to the first water guiding means.

  In the flush toilet configured as described above, the first water guiding means is preferably terminated before reaching the second water outlet.

  In the faucet having the above-described configuration, it is preferable that the amount of water exceeding 50% of the wash water supplied from the water supply unit is distributed to the first water outlet.

  In the flush toilet configured as described above, the distance between the first water outlet and the second water outlet is preferably not less than 1/4 and not more than 2/5 of the inner circumference of the toilet bowl.

It is a top view of a flush toilet bowl. It is a sectional side view of a flush toilet bowl. It is a 1st perspective view of a flush toilet bowl. It is a schematic diagram for demonstrating the height relationship of a 1st water outlet and a 2nd water outlet. It is an expansion perspective view near the 1st spout. It is a 2nd perspective view of a flush toilet bowl. It is a 3rd perspective view of a flush toilet bowl. It is a perspective view of the flush toilet bowl in the 1st modification. It is a perspective view of the flush toilet bowl in the 2nd modification. It is a perspective view of the flush toilet bowl in the 3rd modification.

FIG. 1 is a top view showing an example of a flush toilet. FIG. 2 is a side sectional view of the flush toilet illustrated in FIG.
In the following embodiment, a description will be given by taking as an example a method of cleaning the inside of a toilet by discharging wash water from two water outlets to create a swirling flow. However, the present invention is not limited to the configuration having two water outlets, and can be applied to the flush toilet 100 having two or more water outlets.

  The flush toilet 100 is roughly divided into a toilet body 102 and a water supply unit 104. The toilet body 102 includes a toilet bowl 106, a reservoir 118, and a drain pipe 120. The water reservoir 118 is formed below the toilet bowl 106, and the drain pipe 120 is connected to the toilet bowl 106 through the water reservoir 118. The water supply unit 104 supplies cleaning water to the toilet bowl unit 106.

  The toilet bowl 106 is configured as a container having a bowl-shaped inner wall for receiving filth. The toilet bowl part 106 in this embodiment is provided with two water outlets, the 1st water outlet 112 (main water outlet) and the 2nd water outlet 114 (sub water outlet).

  The accumulated water 118 is always stored in the reservoir 118, thereby blocking the odor of the drain pipe 120. The filth that has fallen into the water reservoir 118 is pushed out to the drain pipe 120 by the washing water together with the staying water.

  At the upper end of the toilet bowl 106, a “water passage (passage where passage of water is assumed)” of washing water is formed along the upper edge of the toilet bowl 106. The first water outlet 112 is installed in communication with a water passage along the upper edge of the toilet bowl 106. The cleaning water discharged from the first water outlet 112 (hereinafter, the water flow formed by the cleaning water discharged from the first water outlet 112 is referred to as “first water flow S1”) from the first water outlet 112 to the toilet bowl. Water is discharged into the club. That is, the first water flow S1 is discharged from the first water discharge port in the circumferential direction. Here, “circumferential direction” means a direction along the water passage along the upper end of the toilet bowl. The first water flow S <b> 1 descends in the stool spirally while circling or turning around the inner wall surface (front end surface and both side surfaces) of the toilet bowl 102, drains into the reservoir 118, and then drains from the drain pipe 120. Is done. The first water flow S1 provides a cleaning power by widely cleaning the inner wall of the toilet bowl 102, and also provides a discharging power due to the water pressure when the water falls.

On the other hand, the first purpose of the second spout 114 is to wash the upper part (rear region 110) of the rear end surface of the toilet bowl 102. The second water outlet 114 is also installed in communication with a water channel provided along the upper edge of the toilet bowl 106. In the present embodiment, the first water outlet and the second water outlet are outlets through which the wash water that has passed through the water passage flows into the toilet.
The rear region 110 is likely to be attached and soiled by urine directly contacting the region during male urination. Further, depending on the position, shape, etc. of the water storage part, there may be a case where adhering dirt due to splashing or splashing of urine, stool or other filth is more likely to be attached than other places. In order to remove the adhering dirt on the rear region 110, a method in which the first water flow S1 is swirled greatly to reach the rear region 110 is also conceivable. In such a method, a sufficient amount of water and a sufficient amount of washing water are supplied to the rear region 110. It is difficult to reach the wide area of the rear region 110, particularly near the upper end of the rear region 110. Therefore, in the present embodiment, the second water discharge port 114 is provided in order to clean the rear region 110 that is easily contaminated. Further, the second outlet 114 not only cleans the rear region 110 but also contributes to wide area cleaning of the toilet bowl 106 as a part of the swirling water flow, and a part of the flow that pushes filth into the drain pipe 120. This also contributes to the enhancement of emission power (details will be described later).

  The “rear region 110” in the present embodiment is a region above the rear part of the inner wall of the toilet bowl 102, and means a region where contamination of filth is particularly assumed (contamination assumed region). The rear region 110 is a region between at least the first water outlet 112 and the second water outlet 114. More specifically, when the inner circumferential center of gravity of the toilet bowl 102 is P, the angle a formed by the rear region 110 with respect to the center of gravity P is in the range of 30 to 80 degrees, at least 30 to 60 degrees. The range is defined as the circumference of the rear region 110. Further, at least the height Z2 of the rear region 110 is less than or equal to half the distance Z1 (see FIG. 2) from the upper end of the toilet bowl 106 to the water surface of the reservoir 118. In the present embodiment, the range from the upper end of the toilet bowl 106 to the second water guiding means 124 (described later) is defined as the height of the rear region 110. Here, the “water guiding means” means a structure for defining a water passage by protruding inward from the toilet bowl 106 like a shelf, or as a recess provided in the toilet bowl 106. Is. The upper part of the water guide means does not need to be a horizontal plane, and may have a shape including an inclined surface.

  The cleaning water discharged from the second water discharge port 114 (hereinafter, the water flow formed by the cleaning water discharged from the second water discharge port 114 is referred to as “second water flow S2”) in the horizontal direction toward the rear region 110. After the water is discharged, it merges with the first water flow, details of which will be described later. The “horizontal direction” here is not a strict horizontal direction, but means that at least the initial velocity of the second water flow S2 has a larger velocity vector in the horizontal direction than the velocity vector in the vertical direction. In particular, it is ideal that the second water outlet 114 be cleaned so that the vicinity of the upper end of the rear region 110 can be covered without leakage.

  The first water outlet 112 is formed forward (downstream) of the second water outlet 114 in the direction of the second water flow S2 (counterclockwise in FIG. 1). In FIG. 1, when the flush toilet 100 is viewed from the X direction (front direction), the second water outlet 114 is formed on the right rear side, and the first water outlet 112 is formed on the left side. The rear region 110 is included in the range from the front end of the first water outlet 112 to the front end of the second water outlet 114. Specifically, the angle b (> a) formed by the tip of the first spout 112 and the tip of the second spout 114 with respect to the center of gravity P is from 90 degrees (¼ of the toilet bowl inner circumference) to 144. It is in the range of 2 degrees (2/5 of the inner circumference of the toilet bowl), more preferably in the range of 100 degrees to 140 degrees. Further, most of the cleaning water supplied from the water supply unit 104 (amount of water exceeding 50%), preferably 70 to 85%, is distributed to the first water outlet 112 and the rest is distributed to the second water outlet 114.

  A second water guide shelf 124 as a guide rail for the second water flow S2 is formed from the start point Q2 that is the tip of the second water outlet 114 to the end point R2 that is the end of the first water outlet 112. A 2nd water conveyance shelf is one Embodiment of a 2nd water conveyance means. The second water flow S2 discharged from the second water outlet 114 is formed on the second water guide shelf 124 (detailed in connection with FIGS. 3 and 4). A first water guide shelf 122 as a guide rail of the first water flow S1 is formed from the start point Q1 which is the tip of the first water discharge port 112 to the left side surface, the front end surface and the right side surface of the toilet bowl 106. The first water guide shelf is an embodiment of the first water guide means. The first water guiding shelf 122 is terminated at an end point R1 before reaching the tip of the second water discharge port 114. For this reason, the opening part 130 of the end point R1 and the start point Q2 of the 2nd water guide shelf 124 is formed. The opening 130 will be described in detail with reference to FIG.

FIG. 3 is a first perspective view of the flush toilet 100.
The flush toilet 100 shown in FIG. 3 is of a type that does not have parts (overhangs) for preventing the water from jumping to the toilet upper surface 126 when the upper end of the toilet bowl 106 protrudes inward. The flush toilet 100 can be simplified in design by not having an overhang.

  The second water outlet 114 discharges washing water to the rear region 110 of the toilet bowl 102. From the second water outlet 114 to the first water outlet 112, a second water guiding means 124 is formed as a guide rail for the second water flow S2. The washing water discharged from the second water discharge port 114 forms the second water flow S2 along the second water guiding means 124 after washing the rear region 110 and reaches the first water discharge port 112.

  The first water outlet 112 discharges wash water in the circumferential direction at the upper part of the inner wall of the toilet bowl 102. From the first water outlet 112, first water guiding means 122 is formed along the circumferential direction of the toilet bowl 102. The wash water discharged from the first water discharge port 112 forms a first water flow S1 along the first water guiding means 122 and swirls above the front end surface and the side surface of the toilet bowl 102, details of which will be described later.

  The second water guide shelf 124 is connected to the first water guide shelf 122 smoothly, in other words, continuously. For this reason, the second water flow S2 formed on the second water guide shelf 124 smoothly merges with the first water flow S1 formed on the first water guide shelf 122. In other words, the second water flow S2 becomes a part of the first water flow S1 in the vicinity of the first water outlet 112, and descends in a spiral manner while swirling around the upper part of the inner wall of the toilet bowl 102. Hereinafter, the water flow after the first water flow S1 and the second water flow S2 merge will be referred to as “swirl water flow S0”. Most of the swirl water flow S0 is the first water flow S1, but the second water flow S2 is also included.

FIG. 4 is a schematic diagram for explaining the height relationship between the first water outlet 112 and the second water outlet 114. FIG. 5 is an enlarged perspective view of the vicinity of the first water discharge port 112.
As described above, the role of the first water flow S <b> 1 is to wash the toilet bowl portion 102 in a wide area by turning the water passage (upper inner wall of the toilet bowl portion 102) along the first water conveyance means 122, and That is, the waste accumulated in the portion 118 is pushed out to the drain pipe 120. On the other hand, the main role of the second water flow S2 is to locally clean the rear region 110. Since the rear region 110 may become dirty to the vicinity of its upper end, it is preferable that the water discharged from the second water discharge port 114 reaches as high as possible in the rear region 110. For this reason, it is desirable that the second water discharge port 114 be installed as high as possible so that the second water flow S2 does not jump out from the rear region 110 to the upper surface 126 of the flush toilet 100.

  On the other hand, in the case of the first water flow S1, the necessity of reaching the upper end of the inner wall of the toilet bowl 102 is lower than that of the second water flow S2. In view of the above design purpose, in the present embodiment, the second water outlet 114 is formed at a higher position than the first water outlet 112. In FIG. 4, the height of the opening lower end of the first water outlet 112 is H4, the opening width of the first water outlet 112 is Z4, the height of the opening upper end of the first water outlet 112 is H6, and the opening of the first water outlet 112 is opened. The center height is H5. Here, the “height” refers to the height from the bottom surface of the flush toilet 100, the height from the surface of the accumulated water in the reservoir 118, or the height from the floor on which the flush toilet 100 is installed. Is defined as In this case, H5 = H4 + Z4 / 2 and H6 = H4 + Z4.

  Similarly, in FIG. 4, the height of the opening lower end of the second water outlet 114 is H1, the opening width of the second water outlet 114 is Z3, the height of the upper end of the second water outlet 114 is H2, and the second water outlet. The height of the opening center of 114 is set to H3. In this case, H3 = H1 + Z3 / 2 and H2 = H1 + Z3.

Here, “the second outlet 114 is higher than the first outlet 112”
(1) H1 ≧ H4 (lower edge comparison) and H3> H5 (center comparison) (2) H1 <H4 (lower edge comparison), but H3> H5 (center comparison) and H2> H6 (upper edge comparison) (3) Although H3 ≦ H5 (center comparison), it means any one of H1> H4 (lower end comparison). This embodiment (FIG. 4) corresponds to (1).

(1) is that the second water outlet 114 is higher than the first water outlet 112 when the opening centers (S3, S5) are compared, and the second water outlet 114 is compared when the lower end of the opening is compared. It means that the lower end of the opening is the same height or higher than the lower end of the opening of the first water discharge port 112. In this case, the second water guiding means 124 is inclined horizontally or downward from the second water discharge port 114.
In (2), since the second water outlet 114 is lower than the first water outlet 112 when the lower ends of the openings (S1, S4) are compared, the second water introduction means 124 is inclined upward. Instead, the center of the opening and the upper end of the opening are higher in the second water outlet 114 than in the first water outlet 112.
(3) shows that the second outlet 114 is lower than the first outlet 112 when the opening centers (S3, S5) are compared, but the second outlet 114 (S1, S4) is the second when the opening lower ends (S1, S4) are compared. Since the water outlet 114 is located at a higher position than the first water outlet 112, the second water guiding means 124 is inclined downward.
In any of the above cases, the point is that a higher positional energy than the cleaning water discharged from the first water outlet 112 is given to all or a part of the cleaning water discharged from the second water outlet 114 (reasons). Will be described later).

  More washing water is distributed to the first water outlet 112 than to the second water outlet 114 so that the first water flow S1 can wash the inner wall surface of the toilet bowl 102 widely. For this reason, if the 1st spout 112 with a large water discharge amount is installed in a high position, possibility that water will scatter is higher than the 2nd spout 114 with a relatively small water discharge. On the other hand, since the second water outlet 114 has a relatively small amount of water discharged, it is easier to install the second water outlet 114 above the first water outlet 112. From this point of view, instead of allocating most of the wash water (50% or more, preferably 70 to 85%) to the first water outlet 112, the second water outlet 114 is higher than the first water outlet 112. It is reasonable to place it in a position.

  After washing the rear region 110, the second water flow S2 moves toward the first water discharge port 112 along the second water guiding means 124 inclined downward. The second water guiding means 124 forms a water passage for the second water flow S2 as a guide rail. The second water guiding means 124 is smoothly coupled to the first water guiding means 122 (see FIG. 5). Here, “smooth” means linear and continuous and has no substantial step.

  The directions of the first water flow S1 and the second water flow S2 are both counterclockwise when viewed from above, but the first water discharge port 112 is formed more forward than the second water discharge port 114 in the water flow direction. Is done. For this reason, if the heights of the first water outlet 112 and the second water outlet 114 are the same, the second water flow S2 loses a part of the kinetic energy (water power) before joining the first water flow S1. , At the time of merging, there is a difference in the water flow of both water streams. However, in this embodiment, since the 2nd water outlet 114 is in a position higher than the 1st water outlet 112, momentum can be added to 2nd water flow S2 by the advantage of potential energy. Thus, although the 2nd spout 114 discharges water from back behind the 1st spout 112, since the 2nd spout 114 discharges from the position higher than the 1st spout 112, the water flow of the 1st stream and the 1st It is possible to bring the water streams of the two water streams closer together, and a smooth merge of the two water streams is achieved.

  Assuming that 70 to 85% of the wash water is distributed to the first spout 112, the arc from the front end of the first spout 112 to the front end of the second spout 114 is 1 of the entire circumference of the toilet bowl 102. It is preferable to set it to about / 4 to 2/5. According to such a design, the rear region 110 is secured with a relatively small amount of cleaning water from the second water discharge port 114 while ensuring a sufficiently large region as the rear region 110 (contamination assumed region) to be cleaned. And the second water flow S2 can be easily joined to the first water flow S1 at the same level of water.

  If the first water outlet 112 and the second water outlet 114 are too close to each other, one of the water outlets enters a part of the contamination assumed region (rear region 110) to be cleaned. For example, if the first water outlet 112 is installed at the rear rather than the side, the first water outlet 112 may be soiled with filth. In order to secure a sufficiently large area as the contamination assumed area (rear area 110), the first water outlet 112 and the second water outlet 114 need to be separated to some extent. On the other hand, if the two water outlets are separated too much, the water flow will be lost too much before the second water flow joins the first water flow. It is necessary to design in consideration of such trade-offs.

FIG. 6 is a second perspective view of the flush toilet 100.
The first water flow S1 and the second water flow S2 merge to form a swirling water flow S0. The swirling water flow S0 is formed in the circumferential direction on the inner wall upper portion of the toilet bowl 102 along the first water guiding means 122. A part of the swirling water flow S0 falls from the first water guiding means 122 to wash the inner wall of the toilet bowl 102, but most of the swirling water flow goes around to the end point R1 (see FIG. 1) along the first water guiding means 122. Thus, the 1st water conveyance means 122 forms the water flow path of the swirl water flow S0 as a guide rail of the swirl water flow S0.

FIG. 7 is a third perspective view of the flush toilet 100.
The first water guide shelf 122 goes around the inner wall of the toilet bowl 102, and a shelf terminal portion 128, which is a terminal portion, is formed in front of the second water outlet 114. Since the shelf end portion 128 gradually narrows and ends at the end point R1 before the second water outlet 114, a shelf discontinuous portion 130 is formed between the end point R1 and the second water outlet 114 (also in FIG. 1). reference). The swirling water flow S0 that circulates in the toilet bowl 102 gradually loses water until it reaches the shelf end portion 128 of the first water guide shelf 122. Eventually, most of the swirling water flow S0 accumulates from the opening 130. It falls toward the water part 118. Since the toilet bowl portion 102 has a smooth inner wall surface at the shelf discontinuous portion 130, the swirling water flow S0 falls smoothly and at a stretch onto the water reservoir 118, and the sewage collected by the dropped water is collected in the water reservoir 118. Extrude powerfully. That is, the discharge force is provided by the fall of the swirling water flow S0.

  In summary, the flush toilet 100 can provide a local cleaning power for the rear region 110 in addition to a draining power and a wide-area cleaning power (for the front end surface and the side surface). The water discharged from the first water outlet 112 swirls extensively along the first water guiding means 122 to wash the inner wall surface of the toilet bowl 102 (front and side detergency), and is collected after the shelf end portion 128 has passed. The filth is washed away by the amount of water that is discharged at once (discharge power).

  On the other hand, the water discharged from the second water discharge port 114 cleans the rear region 110 by so-called shooting, forms a second water flow S2 along the second water guiding means 124, and smoothly merges with the first water flow S1. Since the second water flow S2 becomes a part of the swirl water flow S0 even after the rear region 110 is washed, the second water flow S2 can be used without waste. Further, conventionally, the second water discharge port 114 is provided at a relatively high position in order to wash the rear region 110, in particular, the upper portion thereof, where dirt easily remains. With such a structure, the cleaning effect of the toilet bowl 102 as a whole is enhanced.

Finally, the first to third modifications will be added.
FIG. 8 is a perspective view of a flush toilet 100A according to the first modification.
In the first modification, the second water guiding means 124 and the first water guiding means 122 are not connected smoothly, but a step is provided between them. When providing a level | step difference, the 2nd water conveyance means 124 may be horizontal, but as shown in FIG. 4, you may make it incline to some extent. According to the first modification, the second water stream S2 joins so as to cover the first water stream S1. In other words, it is possible to join the second water flow S2 onto the first water flow S1.

FIG. 9 is a perspective view of a flush toilet 100B according to the second modification.
In the second modification, an overhang 132 is formed along the upper circumference of the toilet bowl 102. The overhang 132 has an effect of preventing scattering of water and filth. For this reason, in the structure which provides the overhang 132, it is easy to install the 2nd water discharge port 114 still higher.

FIG. 10 is a perspective view of a flush toilet 100C according to the third modification.
The third modification is a combination of the first and second modifications. That is, a step is provided between the first water guiding means 122 and the second water guiding means 124 and the overhang 132 is formed.

  As described above, the first water flow S1 and the second water flow S2 are smoothly merged by continuously connecting the first water conveyance means 122 and the second water conveyance means 124, which serve as a guide rail for water discharge from the first water discharge port 112. It becomes easy to let you. Most of the water flow that circulates around the first water guiding means 122 falls in front of the second water outlet 114. The first water flow S1 is swirled once in the toilet bowl, and then suddenly dropped with its momentum, so that the filth can be effectively washed away into the drain pipe. As the rear region 110 (contamination expected region) to be cleaned, a sufficiently large region is secured, the rear region 110 is washed extensively with relatively little cleaning water from the second spout 114, and the first region 110 It becomes easier to join the second water flow S2 to the one water flow S1 with the same level of water.

  According to the present invention represented by the embodiments described so far, the turning height is assisted by the configuration in which the height of the second water outlet is higher than the height of the first water outlet in the vertical direction. While maintaining the function as an auxiliary water flow, the water flow can be efficiently sent to an area where dirt behind the upper part in the toilet bowl is likely to adhere. As a result, it is possible to efficiently and effectively clean the upper rear area where dirt easily adheres without increasing the amount of water used.

  Further, the first water flow and the second water flow are smoothly merged by continuously configuring the start point of the first water introduction means and the end point of the second water introduction means with respect to the direction in which the water turns. The water flow can be efficiently used for toilet cleaning performance.

  Further, with respect to the direction in which the water swirls, the water flow which is guided by the first water guiding means and circulates in the toilet bowl by discontinuously configuring the end point of the first water guiding means and the starting point of the second water guiding means. It becomes easy to drop most of them before the second water outlet. By making the first water flow swirl once in the toilet bowl and then rapidly dropping it with its momentum, the filth can be easily swept into the drain pipe effectively.

  In addition, the configuration in which the circumferential distance between the first water outlet and the second water outlet is 1/4 or more and 2/5 or less of the inner circumference of the toilet bowl portion is efficient without increasing the amount of water used. In addition, a swirl flow is formed, and a region where dirt easily adheres to the upper rear of the inner surface of the toilet bowl can be efficiently washed using the water flow discharged from the second water discharge port. This configuration is most effective when the amount of water discharged from the first water outlet and the amount of water discharged from the second water outlet are in a ratio of (7 to 8.5) :( 3 to 1.5). .

  The present invention is not limited to the above-described embodiments, and can be changed, modified, or improved without departing from the scope of the appended claims. Such changes, modifications, or improvements are also within the scope of the claims of the present invention. Belongs. Moreover, what is understood to be equivalent to the shape, function, and configuration in the present disclosure is also included in the scope of the present invention.

  The present invention can be applied to a flush toilet, particularly a flush toilet that discharges flush water from a plurality of water outlets.

Claims (6)

A toilet bowl body including a toilet bowl having first and second spouts, and a drain pipe for discharging the accumulated water in the toilet bowl,
A water supply section for supplying cleaning water to the first and second water outlets,
The second spout discharges water toward a rear region between the first and second spouts to form a second water flow,
The first water outlet is provided in front of the second water outlet in the direction of the second water flow, and forms a first water flow that discharges water to the upper part of the toilet bowl and turns in the circumferential direction. And
The opening of the second water outlet is positioned above the opening of the first water outlet.   The inner wall of the toilet bowl is further formed with a first water guiding means in the circumferential direction from the first water outlet, and a second water guiding means is formed in the circumferential direction from the second water outlet, and The flush toilet according to claim 1, wherein the second water guiding means is continuously connected to the first water guiding means.   The flush toilet according to claim 2, wherein the first water guiding means is terminated before reaching the second water outlet.   The inner wall of the toilet bowl is further formed with first water guiding means in the circumferential direction from the first water outlet, and the first water guiding means is terminated before reaching the second water outlet. The flush toilet according to claim 1.   The flush toilet according to any one of claims 1 to 4, wherein an amount of water exceeding 50% of the wash water supplied from the water supply unit is distributed to the first water outlet.   The distance between the first water outlet and the second water outlet is ¼ or more and 2/5 or less of the inner circumference of the toilet bowl portion, according to any one of claims 1 to 5. Flush toilet.

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