JP7037719B2 - urinal - Google Patents

Description

The present invention relates to a urinal, and more particularly to a urinal that is washed with spouted wash water.

As a urinal, it is equipped with a urine detection sensor that detects urine movement by the flow of urine and an adjustment means that adjusts the water supply to the bowl part. There is known a urinal that dilutes urine by supplying water to the bowl portion in order to reduce the concentration of urine (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2012-149415

In the above-mentioned urinal, there is a concern that water supply to the bowl portion for lowering the concentration of urine and urine landing on the bowl portion interfere with each other, resulting in water splash. If water splashes, there is a concern that the floor and walls around the urinal will be soiled and the user will get wet.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a urinal capable of diluting urine and suppressing the occurrence of water splash. do.

The present invention has a bowl portion having an upright surface extending in the vertical direction and a bowl-shaped bottom formed below the upright surface and provided with a drain port, and a drain trap communicating with the drain port of the bowl portion. A first water spouting portion provided in the bowl portion, the first spouting port for discharging the washing water to the standing surface of the bowl portion is formed, and the washing water from the first spouting port is formed. In the first water discharge portion that forms a water film in the first region of the standing surface including the center in the left-right direction of the standing surface, and in the second region of the bowl portion that does not overlap with the first region. A second spouting unit that forms the spouting port 2 and discharges wash water from the second spouting port, a detection sensor that detects the use of the urinal by the user, the first spouting unit, and the first spouting unit. A control unit for controlling the discharge of wash water by the water discharge unit (2) is provided, and the control unit discharges water from the second water discharge port while the detection sensor detects the use of the user. It has two water discharge modes and a first water discharge mode in which water is discharged from the first water discharge port after the detection sensor no longer detects the use of the user, and the second water discharge mode in the second water discharge mode is described. The urinal is configured so that the instantaneous flow rate of water discharged from the spout is lower than the instantaneous flow rate of water discharged from the first spout in the first spout mode .

In the present invention configured as described above, the second water discharge port is formed in the second region of the bowl portion that does not overlap with the first region on the left-right central side of the standing surface. The water discharge in the mode can be facilitated to flow to a region other than the first region where urine is considered to be easily landed. Therefore, the urine can be diluted with the washing water discharged by the second water discharge mode and flowed down from the drain port, the generation of urine stones can be suppressed, and the washing water discharged by the second water discharge mode can be used. It is possible to prevent water splashing due to interference with urine.

In the present invention, the second spout is preferably provided at the bottom of the bowl.

In the present invention configured as described above, since the second spout is provided at the bottom of the bowl portion, the spout in the second spout mode is directed to a region other than the first region where urine is considered to be easily landed. It can be made easier to flow. Therefore, the urine can be diluted with the washing water discharged by the second water discharge mode and flowed down from the drain port, the generation of urine stones can be suppressed, and the washing water discharged by the second water discharge mode can be used. It is possible to further suppress the occurrence of water splash due to interference with urine.

In the present invention, preferably, the second spout port discharges wash water backward.

In the present invention configured as described above, since the second spout is configured to discharge the washing water backward, the washing water is usually more backward, which is considered to be easy for urine to land and spread. Can be shed. Therefore, while suppressing the interference between the washing water discharged by the second water discharge mode and the urine to generate water splash, the washing water discharged by the second water discharge mode further dilutes the urine from the drain port. It can be made to flow down.

In the present invention, the second spout is preferably provided in front of the drain.

In the present invention configured as described above, since the first spout is provided in front of the drain port, the washing water can be further flowed to the rear where urine is usually considered to land and spread easily. Therefore, while suppressing the interference between the washing water discharged by the second water discharge mode and the urine to generate water splash, the washing water discharged by the second water discharge mode dilutes the urine more reliably and drains the water. It can be drained from the mouth.

In the present invention, the second spout is preferably provided at the front end of the bottom of the bowl.

In the present invention configured as described above, since the first spout is provided at the front end of the bottom of the bowl portion, it is usually possible to further flow the washing water to the rear where urine is considered to be easily landed and spread. can. Therefore, while suppressing the interference between the washing water discharged by the second water discharge mode and the urine to generate water splash, the washing water discharged by the second water discharge mode dilutes the urine more reliably and drains the water. It can be drained from the mouth.

According to the urinal of the present invention, urine can be diluted and water splash can be suppressed.

The front view which shows the urinal according to 1st Embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 showing a urinal according to the first embodiment of the present invention. The plan view which shows the urinal according to 1st Embodiment of this invention. The figure which shows the waterway composition of the urinal by 1st Embodiment of this invention. In the urinal according to the first embodiment of the present invention, the flowchart which shows the control operation of the controller for every use times that a user uses this urinal. A timing chart showing a state of a detection sensor, a state of use of a user, and a control operation of a controller for each use of the urinal according to the first embodiment of the present invention. The front view which shows the urinal according to the 2nd Embodiment of this invention.

Hereinafter, the urinal according to the embodiment of the present invention will be described with reference to the drawings.
First, the configuration of the urinal according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. 1 is a front view showing a urinal according to the first embodiment of the present invention, and FIG. 2 is a side sectional view and a view along line II-II of FIG. 1 showing a urinal according to the first embodiment of the present invention. 3 is a plan view showing a urinal according to the first embodiment of the present invention, and FIG. 4 is a diagram showing a water channel configuration of the urinal according to the first embodiment of the present invention. Note that FIG. 3 shows a state in which the perforated plate is removed.

As shown in FIGS. 1 to 3, the urinal 1 is an automatic cleaning device that automatically discharges a pottery-made toilet body 2 and washing water for cleaning the toilet body 2 to the toilet body 2. It is equipped with a unit 4.
In the urinal 1 of the present embodiment, the lowermost portion of the urinal body 2 is located above the floor surface (not shown) by a predetermined distance, and the back surface of the urinal body 2 is attached along the wall surface W behind the floor surface (not shown). The so-called wall-mounted urinal will be described, but the urinal may be a floor-standing urinal in which the toilet body 2 is arranged on the floor surface.
Hereinafter, in the embodiment of the present invention, the floor side is the lower side, the side opposite to the floor surface across the urinal 1 is the upper side, and the front side of the wall surface W and the side facing each other across the urinal 1 are the front side. When viewed from the front side, the left side is the left side and the right side is the right side.

A bowl portion 6 for receiving urination is formed on the front side of the toilet bowl main body 2, and a part of the automatic cleaning unit 4 is stored in the upper region of the toilet bowl main body 2 on the back side of the bowl portion 6. Storage room 8 is formed.

Further, the bowl portion 6 has an upright surface 6a extending in the vertical direction and a bowl-shaped bottom portion 6b formed below the upright surface 6a. A drainage port 10 is provided at the bottom portion 6a of the bowl portion 6. A perforated plate 12 is arranged at the drainage port 10. The toilet body 2 is further provided with a drain trap pipeline 14 which is a drain trap forming a sealing water inside the drain port 10 on the downstream side. The drain trap pipeline 14 communicates with the drain port 10. A horizontal pulling pipe 3 is connected to the downstream side of the drain trap pipeline 14 via a drain socket 15 or the like forming a flow path penetrating the wall surface W.

On the front surface of the bowl portion 6, a bowl surface 48 for receiving urination is formed, which is composed of a bottom surface forming an upright surface 6a and a bottom portion 6b, and the bowl surface 48 forms a substantially J-shape when viewed from the side. .. The bowl surface 48 is formed so as to extend to the front surface 7 of the storage chamber 8 of the toilet bowl body 2.
The bowl surface 48 has an arc-shaped front portion 48a whose front surface is open so as to face the user from the upper portion to the lower portion thereof. The bowl surface 48 is formed only from the front portion 48a in the upper region where the spreader 30 is provided, without the conventional side surface portion protruding forward from the bowl surface in a wall shape. Such a front surface portion 48a forms a forward curved surface such that the perpendicular line of the tangent line of its own curved surface faces the standing position of the user standing in front of the toilet bowl main body 2. That is, in the horizontal cross section, the front portion 48a is a line in which a perpendicular line extending in the horizontal direction with respect to the tangent line extending in the horizontal direction at all positions connects the left end portion 48b and the right end portion 48c of the bowl surface 48 and extends in the horizontal direction. Cross the minute.

The front portion 48a of the upper region of the bowl surface 48 is an arc having a substantially single radius of curvature R from the left end portion 48b of the bowl surface 48 to the right end portion 48c in a horizontal cross section (so that the radius of curvature R does not change substantially in the middle). It is one arc, and is formed along an arc (a circular arc called a single radius). The bowl surface 48 in the lower region below the upper region forms a complex curved surface shape by a combination of arcs having two types of radii of curvature R or a combination of arcs and straight lines. The front portion 48a of the bowl surface 48 is formed so as to be inclined rearward from the upper end 48d of the bowl surface 48 downward.

The bowl surface 48 of the bowl portion 6 is formed so that the radius of curvature of its horizontal cross section becomes smaller toward the bottom. The radius of curvature of the arc of the horizontal cross section is formed so as to gradually decrease from the upper end 48d of the bowl surface 48 toward the lower end, and the width of the bowl surface 48 in the left-right direction gradually decreases toward the lower end (front view of the bowl surface 48). The width projected by) is formed to be small. The upper limit of the radius of curvature may be almost infinite, that is, the horizontal cross section of the upper end 48d of the bowl surface 48 may be formed in a straight line.

Specifically, the front portion 48a of the bowl surface 48 is compared in a plan view at a position at a distance L1 (L1 = 150 mm) from the upper end 48d of the bowl surface 48, that is, at a height position of a horizontal cross section across the spreader 30. It is formed by an arc having a single radius of curvature with a radius of curvature R1 (R1 = 300 mm), which is a large radius of curvature.

Further, at a position of a distance L2 (L2 = 300 mm) from the upper end 48d of the bowl surface 48, a single radius of curvature due to the radius of curvature R2 (R2 = 200 mm), which is a radius of curvature smaller than the radius of curvature R1 in a plan view. It is formed by an arc.

The radius of curvature of the front portion 48a is set to, for example, a range of 200 to 500 mm, preferably a range of 200 to 400 mm. By setting this range, it is possible to prevent the hand or arm that grips the user's local area from coming into contact with the bowl surface, which makes it easier for the user to approach the urinal when adding, and as a result, the floor is caused by urine dripping. It is possible to suppress the occurrence of a situation in which the toilet is polluted.

Further, the front portion 48a of the bowl surface 48 has a radius of curvature smaller than the radius of curvature R2 in a plan view at a position of a distance L3 (L3 = 450 mm) from the upper end 48d of the bowl surface 48 in the lower region. It is formed by a complex arc shape that combines R3 and other arcs. The radius of curvature of these arcs is smaller than the radius of curvature R2.

Further, in the lower region of the bowl surface 48, the front portion of the arc-shaped portion that opens in the direction toward the user in a plan view at a position of a distance L4 (L4 = 500 mm) from the upper end 48d of the bowl surface 48. It is formed by 48a and straight portions 48j protruding toward the user on both sides thereof. The radius of curvature R4 of the arc-shaped portion is smaller than the radius of curvature R3.

Further, the left end portion 48b and the right end portion 48c of the bowl surface 48 are formed so as to gradually project forward as they go downward. Further, in front of the lower portion of the bowl portion 6, the left end portion 48b and the right end portion 48c of the bowl surface 48 are connected to each other by facing the center side in the left-right direction on the front side of the drainage port 10, and the tip 48f is formed. Is forming. In this embodiment, the bottom portion 6b of the bowl portion 6 is below the tip 48f.

The bowl surface 48 includes shelves 42 that extend downward from both the left and right sides of the bowl surface 48 to the front side. The shelf 42 guides a part of the washing water that reaches near the left and right sides of the bowl surface 48 from the left and right sides of the bowl surface 48 toward the front side in the main washing water discharge mode (first water discharge mode) described later. There is.
The shelf 42 extends downward from the lower region of the bowl surface 48 toward the tip 48f. The shelf 42 projects laterally inward from the bowl surface 48, and a flat surface portion is formed on the upper surface so that water can easily flow on the shelf 42. Therefore, in the main washing / discharging mode, even when the amount of washing water is reduced, the shelf 42 allows the washing water to reach the front portion of the bowl surface 48 to reliably wash the bowl surface 48 in a wider range than before. can do.

A spreader 30, which is a first water discharge portion for discharging wash water to the standing surface 6a, is provided in the central portion in the left-right direction in the upper region of the bowl surface 48, and is downward on the wall surface of the front end (tip 48f) of the bottom portion 6b. In addition, a second water discharge unit 37 is provided to discharge the washing water toward the rear.

The drain trap pipeline 14 is formed as a water-saving trap so that the volume of the washing water stored in the drain trap pipeline 14 so as to form a sealing water is 200 ml or less. The drain trap line 14 of such a water-saving trap can replace the wash water in the drain trap line with a smaller amount of wash water than the conventional drain trap line having a volume of about 700 ml. The volume of the water-saving type drain trap pipe 14 is preferably in the range of 40 ml to 200 ml, more preferably in the range of 120 ml to 200 ml, and more preferably in the range of 120 ml. Since such a water-saving type drain trap pipe has a volume smaller than the urine volume of the user's urine, the urine concentration of the washing water in the drain trap pipe 14 tends to be high, and this urine Is effective in suppressing the adhesion of urinary stones in the drain trap pipe line 14 and the horizontal pulling pipe 3.

The drain trap pipeline 14 includes a downwardly extending descending pipeline 14a, a laterally extending folded pipeline 14b, and an upwardly extending ascending pipeline 14c. The descending pipeline 14a and the ascending pipeline 14c are separated by a common wall 14d. Since the drain trap pipeline is folded back before and after the common wall 14d, the drain trap pipeline 14 is downsized and the volume of the drain trap pipeline 14 is also reduced. In the central cross section shown in FIG. 8, the width 14e in the front-rear direction of the lower end of the descending pipe 14a and the width 14f in the front-back direction of the lower end of the rising pipe 14c are formed to have substantially the same width, and the drain trap pipe 14 Is miniaturized in the front-back direction. Further, in the central cross section of FIG. 1, the width in the front-rear direction from the width 14f at the lower end of the rising pipe 14c to the width 14g at the upper end is formed to be substantially constant, and the drain trap pipe 14 is miniaturized in the front-rear direction. ing.

As shown in FIG. 3, the automatic cleaning unit 4 stops the main water supply pipe 16 forming the main water supply channel 16a to which cleaning water is supplied from a water supply source (not shown) such as water supply, and the main water supply pipe 16. A pipe joint 24 that is connected to the downstream end of the main water supply pipe 16 and is a branch portion that branches the main water supply pipe 16 to the first water supply pipe 20 and the second water supply pipe 22. And have.

One of the first water supply pipes 20 branched from the main water supply pipe 16 by the pipe joint 24 has a first predetermined flow rate of washing water passing through the water supply channel (first water supply channel 20a) inside the first water supply pipe 20. A first constant flow rate valve 26 that adjusts to the instantaneous flow rate Q1 [liter / minute] is provided.
Further, on the downstream side of the first constant flow rate valve 26, a first on-off valve 28 for opening and closing the first water supply channel 20a is provided. At the downstream end of the first water supply channel 20a on the downstream side of the first on-off valve 28, a spreader 30 for discharging wash water is provided in the bowl portion 6, and the first spreader 30 is provided. The spout 32 is connected to the downstream end of the first water supply channel 20a. In the present embodiment, the first predetermined instantaneous flow rate Q1 [liter / min] is preferably 8 [liter / min] to 17 [liter / min], more preferably 8 [liter / min] to 12 [. It is set to [liters / minute], and even more preferably 9 [liters / minute].

On the other hand, in the other second water supply pipe 22 branched from the main water supply pipe 16 by the pipe joint 24, the instantaneous flow rate of the washing water passing through the water supply channel (second water supply channel 22a) inside the second water supply pipe 22 has a second. A second constant flow rate valve 34 is provided for adjusting to a second predetermined instantaneous flow rate Q2 [liter / minute] lower than the predetermined instantaneous flow rate Q1 [liter / minute] of 1.
Further, on the downstream side of the second constant flow rate valve 34, a second on-off valve 36 for opening and closing the second water supply channel 22a is provided. The second spout 38 of the second spout 37 is connected to the downstream end of the second water supply channel 22a on the downstream side of the second on-off valve 36. In the present embodiment, the second predetermined instantaneous flow rate Q2 [liter / min] is preferably set to 0.1 [liter / min] to 8.0 [liter / min], and more preferably 0. It is set to 1 [liter / minute] to 0.6 [liter / minute], and even more preferably 0.3 [liter / minute]. The difference in instantaneous flow rate between the first predetermined instantaneous flow rate Q1 [liter / minute] and the second predetermined instantaneous flow rate Q2 [liter / minute] is preferably 1.0 [liter / minute] to 8.9. Set to [liters / minute]. Further, in the present embodiment, the second water supply channel 22a is a hose extending to the second water discharge portion 37 inside the urinal main body 2 including the storage chamber 8.

Further, the automatic cleaning unit 4 receives a detection sensor 44 as a human body detection sensor provided on the spreader 30 to detect the presence or absence of a user standing on the front side of the toilet bowl main body 2, and a detection signal transmitted from the detection sensor 44. It includes a controller 46 which is a control unit that receives and controls the operation of each of the first on-off valve 28 and the second on-off valve 36 based on a predetermined control program or the like.

The detection sensor 44 is an infrared type human body detection sensor. The detection sensor 44 is based on the use of another detection sensor that detects the use (state of use) of the user's urinal, for example, a Doppler type sensor using microwaves, or the use of the user's urinal. It may be a flow rate detection sensor or the like that detects the flow of urine. Since the Doppler type sensor can detect not only the human body of the user but also the urine flow, it is possible to more accurately identify the presence or absence of urination on the bowl surface.

The controller 46 has a built-in CPU, memory, and the like, and can control other devices based on a predetermined control program and the like. By controlling the opening / closing operation of the first on-off valve 28, the controller 46 starts and ends the main washing water discharge mode (first water discharge mode) or the organic matter contamination suppression water discharge mode from the first water discharge unit 32. Control. The controller 46 controls the start and end of water discharge in the urine dilution water discharge mode (second water discharge mode) from the second water discharge port 38 by controlling the opening / closing operation of the second on-off valve 36.

The controller 46 has a urine diluting water discharge mode (second water discharge mode) in which water is discharged from the second water discharge port 38 during a predetermined period while the detection sensor 44 detects the use of the user, and the detection sensor 44 This washing water discharge mode (first water discharge mode) in which water is discharged from the first water discharge port 32 after the user's use is no longer detected, and the first water discharge unit 32 periodically based on a set schedule. Organic dirt suppression water discharge mode that suppresses the formation of organic dirt including biofilm in the drain trap pipeline 14 and the horizontal pulling pipe 3 by spouting wash water, and the detection sensor 44 detects the use of the user and determines the detection state. The standby mode in which the user waits for a predetermined standby time P between the time t0 when the urine is diluted and the time t3 when the urine diluting water discharge mode is executed, and the detection time in which the user's detection state by the detection sensor 44 continues is shorter than the standby time P. The non-use mode in which neither the urine dilution water discharge mode nor the main washing water discharge mode is executed when the operation is completed in a time shorter than the set usage confirmation time Q, and the detection time in which the detection state by the detection sensor 44 continues is the usage confirmation time. It is provided with a forced cleaning mode in which the main cleaning water discharge mode is forcibly executed when the forced cleaning time is longer than Q and shorter than the standby time P within the forced cleaning time L. As shown in FIG. 6, the waiting time P is the time from the time t0 to the time t3. The usage confirmation time Q is the time from the time t0 to the time t1. The forced cleaning time L is the time from time t1 to time t3.

In this embodiment, the first constant flow rate valve is used as a flow rate adjusting means for adjusting the instantaneous flow rates Q1 and Q2 of the cleaning water of the first water supply channel 20a and the second water supply channel 22a of the automatic cleaning unit 4. A form in which each of the 26 and the second constant flow rate valve 34 is adopted will be described, but the present invention is not limited to these forms. Another flow rate adjusting means for adjusting may be adopted, and the operation of the other flow rate adjusting means may be controlled by the controller 46.

Further, in the present embodiment, the spreader 30 forms the first spout 32 and discharges the washing water from the first spout 32, but the present invention is not limited to such a mode. For example, a third spout is formed separately from the first spout, and a de-electricity sterilizing unit is provided to generate electricity-releasing bacterial water, and the electric-released bacterial water is supplied to the third spout to supply the electric-released bacterial water to the third spout. It may be configured to spout sterilized water from the spout of 3. Further, the sterilized water may be configured to be able to be discharged from the first spout and / or the second spout.

As shown in FIG. 1, the washing water supplied from the first water supply channel 20a has a first predetermined instantaneous flow rate Q1 [liter / liter /] so as to spread in the left-right direction on the bowl surface 48 from the first spout 60. The water is discharged as the washing water W1.
As a result, the washing water from the first spout 60 forms a water film in the first region A including the center of the standing surface 6a in the left-right direction. The center in the left-right direction is the center in the left-right direction in the front view of the left end portion 48b and the right end portion 48c of the bowl surface 48, which is the center line in the left-right direction and the center line D extending in the vertical direction and the front surface. It is a position that overlaps visually. In the present embodiment, the first region A extends in the left-right direction to the shelf 42 in front view, and the height position of the tip 48f is the lower end. The region B that does not overlap with the first region A in the bowl portion 6 when viewed from the front is the second region B, and in the present embodiment, the region excluding the first region A in the standing surface 6a (in FIG. 1 as a alternate long and short dash line). A region outside the end of the first region A shown) and the bottom 6b.

On the other hand, as shown in FIG. 3, the second spout 38 is formed at the front end of the bottom portion 6b of the bowl portion 6 which is the second region B (the position behind the tip 48f and overlapping in the front view), and the bowl portion is formed. The bottom portion 6b of No. 6 is discharged as washing water W2 having a second predetermined instantaneous flow rate Q2 [liters / minute] toward the rear so as to spread in the left-right direction.

Next, the operation (action) of the urinal according to the first embodiment of the present invention will be described with reference to FIGS. 5 and 6. FIG. 5 is a flowchart showing the control operation of the controller for each use of the urinal according to the first embodiment of the present invention, and FIG. 6 is a small diagram according to the first embodiment of the present invention. It is a timing chart which shows the state of a detection sensor, the state of use of a user, and the control operation of a controller for each use of a urinal.

First, the operation (action) of normal toilet bowl cleaning in the urinal 1 according to the first embodiment of the present invention will be described.
As shown in FIG. 5, in S0, when the user stands in front of the bowl portion 6 of the toilet bowl main body 2 of the urinal 1, the detection sensor 44 is in the detection state of detecting the use of the user (time t0). , The detection signal is transmitted to the controller 46, and the controller 46 recognizes the existence of the user. At this point, the first on-off valve 28 is in a closed state, and the second on-off valve 36 is also in a closed state. The controller 46 executes a standby mode in which the detection sensor 44 waits for a predetermined standby time P from the time t0 when the detection sensor 44 is in the detection state. The controller 46 does not start the urine dilution discharge mode immediately from time t0, but suppresses the discharge of wash water which is difficult to contribute to the dilution of urine before the user starts urinating by executing the preceding standby mode. , Can save wash water to dilute urine. The predetermined standby time P is a standby time intentionally realized to achieve the purpose by a program or the like recorded in the controller 46, and is a water discharge operation slightly caused by a delay in signal transmission or a delay in the operation of the valve body. It is distinguished from the delay time of.

In S1, the controller 46 determines whether or not the usage confirmation time Q (for example, about 5 seconds) has elapsed while the detection state of the user by the detection sensor 44 is continued. The usage confirmation time Q is set shorter than the standby time P. When the continuation of the detection state of the user by the detection sensor 44 ends in a time shorter than the usage confirmation time Q, the controller 46 determines that the user has left without urinating to the urinal 1, which is useless. In order to prevent the use of wash water, the standby mode is interrupted and the non-use mode is executed, and the process proceeds to S12 without executing either the urine dilution water discharge mode or the main wash water discharge mode, and a series of operations is completed. When the detection time for which the detection state of the detection sensor 44 continues is equal to or longer than the usage confirmation time Q, the controller 46 determines that the user is using the urinal 1, proceeds to S2, and waits. Continue mode.

As shown in FIG. 6, the user prepares to urinate by taking off his clothes while standing in front of the bowl portion 6 from time t0 to time t2 before urinating. The time t2 is set as the time after the average undressing time E, which is assumed that the average adult user takes off his clothes and prepares to urinate, has elapsed from the time t0. The undressing time E is set to about 8 seconds. At time t2, the user's urination starts.

In S2, the controller 46 continues the standby mode.
In S3, the controller 46 determines whether or not the waiting time P has elapsed from the time t0 in the standby mode. If the waiting time P has not elapsed since the time t0, the controller 46 proceeds to S4. When the standby time P has elapsed from the time t0, the controller 46 exits the standby mode and proceeds to S5.

Here, a case where the urine diluted water discharge mode is executed after the waiting time P has elapsed in the urinal of the first embodiment of the present invention will be described.
At time t0, the detection of the user's use is started. At time t0, the user's urination has not started, and the controller 46 starts the standby mode prior to the urine dilution and water discharge mode.
At time t2, the controller 46 is continuing the standby mode and the urine dilution and drainage mode is not being executed. At time t2, the user's urination begins. As shown at time t2 to time t4, the urine flow flows into the bowl portion 6 and the urine concentration in the drain trap pipeline 14 gradually increases. As described above, even if the user starts urinating while waiting in the standby mode, the water force of urination is relatively weak and the flow rate is relatively small at the initial stage of urination, so that the washing water in the drain trap pipeline 14 is used. Urinary concentration increases slowly and does not increase immediately to the extent that urinary stones develop.

At time t3, the standby time P of the standby mode ends, and the execution of the urine dilution / discharge mode is started. In this way, the urine dilution water discharge mode is executed while the detection sensor 44 detects the user. Even after time t3, the urine concentration of the wash water slightly increases up to the urine concentration M in the state diluted by the urine dilution discharge water mode.

At time t4, the wash water diluted on the bowl surface 48 by the function of the urine dilution discharge water mode flows into the drain trap pipe 14, and the urine concentration of the wash water in the drain trap pipe 14 is urine stone. It is maintained at a constant urine concentration M to the extent that it becomes difficult. Since the urine dilution / discharge mode is executed after the time t4, the increase in the urine concentration in the drain trap pipeline 14 is suppressed. In this way, even if the urine dilution and discharge mode is executed after the standby time P has elapsed, it is possible to control the urine concentration of the wash water in the drain trap pipeline 14 to a predetermined urine concentration M or less so as not to increase too much. Will be. In this way, in order to prevent the urine concentration of the washing water in the drain trap pipeline 14 from increasing too much, the standby time P may be set to a time within the range of 6 seconds to 11 seconds from the time t0. preferable. Further, the waiting time P may be set as a time from the time t0 to the time a few seconds after the expected urination start timing. Therefore, the start of execution of the urine dilution and water discharge mode is made to wait for a waiting time P equal to or longer than the scheduled start time of urination. Therefore, in the early stage of urination where the water force of urination is relatively weak, it is possible to suppress the discharge of wash water which is difficult to contribute to the dilution of urine and save the wash water for diluting urine.

Further, even if the user starts urinating while waiting in the standby mode, the washing water from the previous washing exists in the drain trap pipeline 14 at the initial stage of urination, and even if the urine flows in, the urine of the washing water is urine. The concentration is kept relatively low. Therefore, the generation of urinary stones is suppressed. Further, by executing the urine dilution / discharge mode following the standby mode, the urine concentration in the drain trap pipeline 14 can be reduced and the generation of urine stones can be suppressed. Therefore, the standby mode can suppress the discharge of wash water that does not easily contribute to the dilution of urine, and can save the wash water that dilutes urine.

Further, the urine concentration of the washing water in the drain trap pipe 14 does not increase until the undressing time E elapses at time t2 because the user has not urinated. Therefore, by waiting until the start of the execution of the standby mode, it is possible to delay the start of the urine dilution and discharge mode, suppress the discharge of the wash water that does not easily contribute to the dilution of urine, and save the wash water that dilutes the urine.

Next, in the urinal of the first embodiment of the present invention, a case where the urine diluted water discharge mode is executed almost simultaneously with the start of urination will be described. The description of the operation overlapping with the case where the urine dilution discharge mode is executed after the waiting time P has elapsed will be omitted. At time t2, the user's urination begins. At time t2, the controller 46 terminates the standby mode and causes the urine dilution and discharge mode to be executed. Since the urine dilution discharge mode is started, the urine flow is diluted mainly on the bowl surface 48, and the urine concentration of the wash water rises relatively slowly. In this way, the increase in the urine concentration of the wash water in the drain trap pipeline 14 is gradually suppressed, and the increase to the urine concentration of the wash water diluted by the urine dilution discharge mode. Even when the urine dilution discharge mode is executed at the same time as the start of urination, the urine concentration of the washing water in the drain trap pipeline 14 is controlled to a predetermined urine concentration M or less.

Next, a case where the urine dilution water discharge mode is not executed will be described as a comparative example.
After time t2, the urine diluted water discharge mode is not executed. In the initial stage of urination from time t3 to time t4, the urine concentration of the wash water gradually increases. Since the urine dilution and discharge mode is not executed after the time t4, the urine concentration of the washing water in the drain trap pipeline 14 increases beyond the predetermined urine concentration M. In such a comparative example, by the time the main washing water discharge mode is executed, the washing water in the drain trap pipeline 14 is almost replaced with the urine of the user, and the urine concentration of the washing water is almost 100%.
Will be.

Returning to FIG. 5, the flowchart will be described.
In S4, the controller 46 determines whether or not the detection sensor 44 maintains the detection state. When the detection state of the user by the detection sensor 44 does not continue, that is, when the detection state ends, the controller 46 does not execute the urine dilution and water discharge mode, so that the user is urinating urine. In that case, urine dilution and washing of the bowl portion 6 and the drain trap pipeline 14 may be left untreated. Therefore, the controller 46 determines that the user may be slightly urinating to the bowl portion 6, and interrupts the standby mode in order to prevent the urine from remaining flowing into the bowl portion 6. The forced cleaning mode is executed, and the process proceeds to S11. By the forced washing mode, the main washing water discharge mode is preliminarily executed in S11, and the urine is surely diluted and the bowl part 6 and the drain trap line 14 are washed to keep the bowl part 6 hygienic. .. In S4, the controller 46 returns to S2 when the detection sensor 44 continues the detection state.

In S5, the controller 46 executes the urine dilution and water discharge mode at the time t3 when the waiting time P has elapsed from the time t0. As shown in FIG. 4, the controller 46 opens the second on-off valve 36 by starting the urine diluting water discharge mode, and flushes the main water supply channel 16a of the main water supply pipe 16 with the second water supply pipe 22. It is supplied to the second water supply channel 22a of. The controller 46 keeps the first on-off valve 28 closed. The wash water W2 flowing through the second water supply channel 22a is adjusted to a relatively low second predetermined instantaneous flow rate Q2 [liter / minute] by passing through the second constant flow valve 34, and the second Water is discharged from the second spout 38 of the spout portion 37.

In S6, the controller 46 starts accumulating the amount of water discharged by the urine dilution discharge mode into the integrated amount Wv, and proceeds to S7. The integrated amount Wv of the urine dilution discharge mode discharge water accumulated by the controller 46 is stored in a storage device such as a memory of the controller 46.

In S7, the controller 46 determines whether or not the detection sensor 44 maintains the detection state. If the detection sensor 44 keeps the detection state, the controller 46 proceeds to S8. When the detection sensor 44 no longer detects the use of the user, the controller 46 determines that the user has finished urinating and has left from the front of the toilet bowl body 2, and suppresses wasteful consumption of urine-diluted water discharge. In order to execute the main washing water discharge mode in which the drain trap pipeline 14 and the horizontal pulling pipe 3 are sufficiently washed to suppress the subsequent generation of urinary stones, the process proceeds to S9.

In S8, the controller 46 determines whether or not the abnormal use time has elapsed from the time t0. When the abnormal use time has elapsed, the controller 46 determines that the detection sensor 44 is out of order or the toilet bowl body 2 is in a state of use different from the user's urination, and the water discharge by the urine dilution water discharge mode is useless. Proceed to S9 to suppress consumption. If the abnormal use time has not elapsed, the controller 46 determines that the user's urination is continuing, and returns to S7 so that the urine diluted water discharge mode can be appropriately executed during the user's urination.

In S9, the controller 46 terminates the urine dilution and water discharge mode and proceeds to S10. As shown in FIG. 4, the controller 46 closes the second on-off valve 36 and stops the supply of the wash water to the second water supply channel 22a at the end of the urine dilution discharge water mode. Therefore, the water discharge from the second water discharge port 38 of the second water discharge unit 37 is stopped.

As shown in FIG. 17, in S10, the controller 46 ends the integration of the water discharge amount into the integrated amount Wv by the urine dilution water discharge mode, and proceeds to S11.

In S11, the controller 46 executes the main wash water discharge mode.
As shown in FIG. 4, the controller 46 first transmits a control signal to the first on-off valve 28 to open the first on-off valve 28 by executing the main wash water discharge mode. The washing water of the main water supply channel 16a of the main water supply pipe 16 flows only to the first water supply channel 20a via the pipe joint 24.
Next, the washing water W1 flowing through the first water supply channel 20a is adjusted to a relatively high first predetermined instantaneous flow rate Q1 [liter / minute] by passing through the first constant flow rate valve 26. After that, it passes through the first on-off valve 28 and is supplied to the first spout 32 of the spreader 30. In the main washing water discharge mode, the controller 46 opens the first on-off valve 28 for a certain period of time so as to discharge a water discharge flow rate of 0.5 [liter] for each use.

As shown in FIG. 1, the washing water W1 discharged from the first water discharge port 60 is discharged so as to spread in the left-right direction along the bowl surface 48, and spreads from the center of the bowl surface 48 to the left and right ends. Form a stream of water. Therefore, the washing water W1 can wash the bowl surface 48 in a wider range than before. The washing water W1 spreads to the vicinity of both the left and right sides of the bowl surface 48 and flows downward without jumping out of the bowl portion 6.

A part of the washing water W1 discharged from the first water discharge port 60 can flow down along the shelf 42 while being guided toward the front of the bowl surface 48. Therefore, the washing water can reach the front portion of the bowl surface 48 to wash the bowl surface 48 in a wider range than before, and the unwashable portion of the bowl surface 48 can be reduced.

The wash water W1 flowing down the bowl surface 48 flows into the drain trap pipeline 14 from the drain port 10. The wash water W1 flows toward the horizontal pulling pipe 3 on the downstream side of the drain trap pipeline 14, so that the urine in the drain trap pipeline 14 and the horizontal pulling pipe 3 is discharged to the downstream side. The wash water W1 flows at a relatively high instantaneous flow rate Q1 and replaces the diluted urine in the drain trap line 14 with new wash water to make the urine concentration of the wash water in the drain trap line 14 relatively high. It can be greatly reduced. After the predetermined time has elapsed, the controller 46 closes the first on-off valve 28, stops the water discharge operation by the spreader 30, ends the operation of the main wash water discharge mode, and proceeds to S12.

In S12, the controller 46 ends the control operation for each use, which starts after the detection sensor 44 detects the use of the user, and puts the detection sensor 44 in the standby state. When the detection sensor 44 detects the use of the user again, the controller 46 starts the control operation for each use from S0.

First, as shown in FIG. 22, in S20, the controller 46 starts counting T for a certain predetermined time from the time when the previous organic matter contamination suppressing water discharge mode is executed.

Next, the operation (action) of the organic matter contamination suppressing water discharge mode in the urinal 1 according to the first embodiment of the present invention will be described.
First, the controller 46 starts counting T for a certain predetermined time from the time when the previous organic matter contamination suppression water discharge mode is executed.
The controller 46 determines whether or not the predetermined time T has elapsed. When the predetermined time T has elapsed, the controller 46 determines that water discharge is effective for suppressing the growth of bacteria that generate biofilm in the drain trap pipeline 14 and the horizontal pipe 3. Decided to execute this organic matter contamination suppression water discharge mode.

The controller 46 responds to the integrated amount Wv of the amount of water discharged by the urine dilution water discharge mode from the execution of the previous organic matter contamination suppression water discharge mode to the determination of the execution of the current organic matter contamination suppression water discharge mode. The amount of water discharged in the dirt suppression water discharge mode is set, and the washing water of the water discharge flow rate set from the first water discharge unit 32 of the spreader 30 is discharged.

In the urinal 1 according to the first embodiment of the present invention described above, the second region B of the bowl portion 6 does not overlap with the first region A on the left-right center side of the standing surface 6a in the front view. By forming the water discharge port 38 of the above, it is possible to facilitate the flow of water in the urine dilution water discharge mode to a region other than the first region A where urine is considered to be easily landed. Therefore, the urine can be allowed to flow down from the drain port 10 while diluting the urine with the washing water discharged by the urine diluted water discharge mode, the generation of urine stones can be suppressed, and the washing water discharged by the urine diluted water discharge mode can be suppressed. And urine interfere with each other to prevent water splashing.

Further, in the urinal 1 according to the first embodiment of the present invention described above, the second spout 38 is provided at the bottom 6b of the bowl portion 6. Therefore, it is possible to make it easier for the water discharged in the urine dilution water discharge mode to flow to a region other than the first region A where urine is considered to be easily landed. Therefore, the urine can be allowed to flow down from the drain port 10 while being diluted with the washing water discharged by the urine diluted water discharge mode, the generation of urine stones can be suppressed, and the washing water discharged by the urine diluted water discharge mode can be suppressed. It is possible to further suppress the occurrence of water splash due to the interference between urine and urine. Further, as compared with the case where the second spout 38 is provided in a place other than the bottom portion 6b, the second spout 38 can be visually recognized by the user, and the aesthetic appearance can be enhanced.

Further, in the urinal 1 according to the first embodiment of the present invention described above, the second spout 38 is configured to spout wash water backward. Therefore, more washing water can be flowed backward, which is usually considered to be easy for urine to land and spread. Therefore, while suppressing the interference between the washing water discharged by the urine-diluted water discharge mode and urine to generate water splash, the drain port 10 is further diluting the urine with the washing water discharged by the urine-diluted water discharge mode. Can be made to flow down from.

Further, in the urinal 1 according to the first embodiment of the present invention described above, the second spout 38 is provided in front of the drain port 10. Therefore, the washing water can be further flowed backward, which is usually considered to be easy for urine to land and spread. Therefore, while suppressing the interference between the wash water discharged by the urine-diluted water discharge mode and urine to generate water splash, the urine is more reliably diluted and drained with the wash water discharged by the urine-diluted water discharge mode. It can be made to flow down from the mouth 10.

Further, in the urinal 1 according to the first embodiment of the present invention described above, the second spout 38 is provided at the front end of the bottom portion 6b of the bowl portion 6. Therefore, the washing water can be further flowed backward, which is usually considered to be easy for urine to land and spread. Therefore, while suppressing the interference between the wash water discharged by the urine-diluted water discharge mode and urine to generate water splash, the urine is more reliably diluted and drained with the wash water discharged by the urine-diluted water discharge mode. It can be made to flow down from the mouth.
Further, normally, urine forms a urine flow after landing on the bowl surface 48 and flows down the drainage port 10 from one place on the rear side of the drainage port 10, but in the present embodiment, the second spout 38 is. Since it is configured to discharge water so as to spread in the left-right direction, it can wrap around the drainage port 10 and merge with the urine flow on the posterior side. Therefore, the urine is more reliably diluted with the wash water discharged by the urine dilution discharge mode while suppressing the interference between the wash water discharged by the urine dilution discharge mode and the urine from causing water splash. While doing so, it can be made to flow down from the drain port 10.

Next, the urinal according to the second embodiment of the present invention will be described with reference to FIG. 7. FIG. 7 is a front view showing a urinal according to the second embodiment of the present invention.
Regarding the urinal 101 according to the second embodiment, only the points different from the urinal 1 according to the first embodiment described above will be described, and the same reference numerals will be given to the drawings for similar parts, and the description thereof will be omitted.

As shown in FIG. 7, the second spout 138 in the second embodiment is provided in the second region B on the standing surface 6a in the second region B. More specifically, in the present embodiment, the second water discharge portion 137 forming the second water discharge port 138 is provided on the side of the spreader 30 and on the upper side of the shelf 42.
The second water discharge unit 137 is configured such that the washing water W2 discharged from the second water discharge port 138 is discharged in the direction opposite to the direction toward the center line D in the left-right direction of the bowl portion 6. , It is configured to discharge wash water toward the shelf 42. With such a configuration, it is possible to suppress the interference between the washing water discharged from the second spout 138 and the urine that easily lands on the first region A. Further, the shelf 42 can guide the washing water discharged from the second water discharge port 138 to the front side of the bottom portion 6b of the bowl portion 6.

In the urinal 101 according to the second embodiment of the present invention described above, similarly to the urinal 1 in the first embodiment, the first region A on the left-right side of the standing surface 6a in the bowl portion 6 and the front view. By forming the second spout 138 in the second region B that does not overlap with each other, it is easy to flow the water discharged in the urine-diluted water discharge mode to a region other than the first region A where urine is considered to be easily landed. be able to. Therefore, the urine can be allowed to flow down from the drain port 10 while diluting the urine with the washing water discharged by the urine diluted water discharge mode, the generation of urine stones can be suppressed, and the washing water discharged by the urine diluted water discharge mode can be suppressed. And urine interfere with each other to prevent water splashing.

1 Toilet bowl 2 Toilet bowl body 3 Horizontal piping 4 Automatic cleaning unit 5 Vertical drain pipe 6 Bowl part 6a Standing surface 6b Bottom 7 Front 8 Storage room 10 Drainage port 12 Drainage plate 14 Drain trap pipeline 15 Drainage socket 16 Main water supply pipe 16a Main water supply channel 18 Water stop valve 20 Water supply pipe 20a Water supply channel 22 Water supply pipe 22a Water supply channel 24 Pipe joint 26 First constant flow valve 28 On-off valve 30 Spreader (first water discharge part)
32 First spout 34 Second constant flow valve 36 On-off valve 37 Second spout 38 Second spout 42 Shelf 44 Detection sensor 46 Controller 48 Bowl surface 48a Front 48b Left end 48c Right end 48d Upper end 48f Tip 48j Straight part 101 Urinal 137 Second spout 138 Second spout A First area B Second area W Wall surface

Claims (5)

A urinal that is washed with the spouted wash water.
An upright surface extending in the vertical direction, a bowl portion having a bowl-shaped bottom formed below the upright surface and provided with a drainage port, and a bowl portion.
A drain trap that communicates with the drain port of the bowl part,
A first spouting portion provided in the bowl portion, the first spouting port for spouting washing water to the standing surface of the bowl portion is formed, and the washing water from the first spouting port is used to form the first spouting port. The first water discharge portion that forms a water film in the first region of the standing surface including the center in the left-right direction of the standing surface, and the first water discharge portion.
A second spouting portion that forms a second spout in the second region of the bowl portion that does not overlap with the first spouting region and discharges wash water from the second spouting port, and a second spouting portion.
A detection sensor that detects the use of the urinal by the user,
A control unit for controlling the discharge of washing water by the first water discharge unit and the second water discharge unit is provided.
The control unit
A second spout mode in which water is spouted from the second spout while the detection sensor detects the use of the user, and
It has a first water discharge mode in which water is discharged from the first water discharge port after the detection sensor no longer detects the use of the user.
A urinal configured such that the instantaneous flow rate of water discharged from the second water discharge port in the second water discharge mode is lower than the instantaneous flow rate of water discharged from the first water discharge port in the first water discharge mode . The urinal according to claim 1, wherein the second spout is provided at the bottom of the bowl portion. The urinal according to claim 2, wherein the second spout is directed to the rear to spout wash water. The urinal according to claim 3, wherein the second spout is provided in front of the drain. The urinal according to claim 4, wherein the second spout is provided at the front end of the bottom portion of the bowl portion.

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