JP2019060186A - urinal - Google Patents

Abstract

To provide the urinal that is able to dilute urine and can suppress occurrence of a water splash.SOLUTION: The urinal comprises: a first water discharge part provided in a bowl portion that forms a first water discharge port discharging washing water to a standing position of a bowl part and forms a water film on a first area of a standing position surface including a center in a left-right direction of the standing position surface by washing water from the first discharge port, a second water discharge part that forms a second water discharge port in a second area of a bowl portion that does not overlap the first area, and discharges the washing water from the second water discharge port, and a control part that controls water discharge of the washing water by the first water discharge port and the second water discharge port, wherein the control part has a second water discharge mode for performing water discharge from the second discharge port while a detection sensor detects user's use, and a first water discharge mode for performing the water discharge from the first discharge port after the detection sensor no longer detects the user's use.SELECTED DRAWING: Figure 2

Description

  TECHNICAL FIELD The present invention relates to a urinal, and more particularly to a urinal to be cleaned with discharged flush water.

  The urinal includes a urine detection sensor for detecting a urine movement by the flow of urine, and an adjustment means for adjusting water supply to the bowl portion. The urine detection sensor of the urinal detects urine flow and the adjustment means is urine In order to reduce the concentration of water, a urinal that supplies water to the bowl and dilutes the urine is known (see, for example, Patent Document 1).

JP, 2012-149415, A

  In the above-described urinal, there is a concern that water supply to the bowl portion to lower the concentration of urine interferes with urine that has landed on the bowl portion, causing water splash. Water splashing may contaminate the floor and walls around the urinal and may cause the user to get wet.

  The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a urinal that can dilute urine and can suppress the occurrence of water splashing. Do.

  According to the present invention, there is provided a bowl portion having a standing surface extending vertically, and a bowl-shaped bottom portion formed below the standing surface and provided with a drainage port, and a drainage trap communicating with the drainage port of the bowl portion. And forming a first spout, which is a first spout portion provided in the bowl portion, for spouting flush water to the standing surface of the bowl portion, and the flush water from the first spout port is formed. The first water discharger forming a water film on the first region of the standing surface including the center in the left-right direction of the standing surface, and the second region on the second region of the bowl not overlapping the first region A second spouting portion that forms the spout of the second spout, and spouting flush water from the second spout, a detection sensor that detects the use of the urinal by the user, the first spouting portion and the second A control unit that controls the discharge of wash water by the water discharge unit, and the control unit The second spouting mode in which spouting is performed from the second spout while the detection sensor detects the use of the user, and the first spout after the detection sensor does not detect the use of the user And a first water discharge mode for discharging water from the water port.

  In the present invention configured as described above, the second water discharge port is formed by forming the second water discharge port in the second region not overlapping the first region on the center side in the left-right direction of the standing surface in the bowl portion. Water spouting 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 made to flow down from the drainage port while diluting the urine with the flush water spouted in the second spout mode, and the generation of urinary calculus can be suppressed, and the flush water spouted in the second spout mode It is possible to suppress the occurrence of water splashing due to interference with urine.

  In the present invention, preferably, the second water discharge port is provided at the bottom of the bowl portion.

  In the present invention configured as described above, since the second water discharge port is provided at the bottom of the bowl portion, the water discharge in the second water discharge mode is directed to a region other than the first region where urine is likely to land. It can be made easier to flow. Therefore, the urine can be made to flow down from the drainage port while being diluted by the flush water spouted in the second spout mode, and generation of urinary calculus can be suppressed, and the flush water spouted in the second spout mode Interference with urine can further suppress the occurrence of water splashing.

  In the present invention, preferably, the second water discharge port discharges washing water rearward.

  In the present invention configured as described above, since the second spout port is configured to discharge wash water toward the rear, the wash water is generally considered to be more likely to come into contact with the urine and spread more easily to the rear. Can flow. Therefore, while suppressing that the wash water discharged in the second water discharge mode and urine interfere with each other to generate water splash, the urine is further diluted with the wash water discharged in the second water discharge mode, and from the drain It can be drained.

  In the present invention, preferably, the second water outlet is provided in front of the water outlet.

  In the present invention configured as described above, since the first water discharge port is provided in front of the water discharge port, it is possible to further flush the wash water to the rear where urine is considered to be easily spread and spread. Therefore, it is possible to more reliably dilute the urine with the flush water spouted in the second spout mode while preventing the water spouted in the second spout mode from interfering with the urine and causing water splashing. It can be drained from the mouth.

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

  In the present invention configured as described above, since the first water discharge port is provided at the front end of the bottom of the bowl portion, it is generally possible to further flush the washing water to the rear where urine is likely to land and spread. it can. Therefore, it is possible to more reliably dilute the urine with the flush water spouted in the second spout mode while preventing the water spouted in the second spout mode from interfering with the urine and causing water splashing. It can be drained from the mouth.

  ADVANTAGE OF THE INVENTION According to the urinal of this invention, while being able to perform dilution of urine, it becomes possible to suppress that a water splash arises.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the urinal by 1st Embodiment of this invention. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1 showing a urinal according to a first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The top view which shows the urinal by 1st Embodiment of this invention. The figure which shows the water channel structure of the urinal by 1st Embodiment of this invention. In the urinal according to the first embodiment of the present invention, a flow chart showing the control operation of the controller for each use time when the user uses this urinal. The timing chart which shows the state of a detection sensor, the user's use condition, and the control action of a controller for every use which uses the urinal according to the 1st embodiment of the present invention. The front view which shows the urinal by 2nd Embodiment of this invention.

Hereinafter, a toilet bowl according to an 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. FIG. 1 is a front view showing a urinal according to a first embodiment of the present invention, and FIG. 2 is a side sectional view taken along line II-II in FIG. 1 showing a urinal according to the first embodiment of the present invention 3 is a plan view showing the urinal according to the first embodiment of the present invention, and FIG. 4 is a view showing the water channel configuration of the urinal according to the first embodiment of the present invention. In addition, in FIG. 3, the state which removed the eyelet is shown.

As shown in FIGS. 1 to 3, the urinal 1 is an automatic cleaning device that is a toilet bowl body 2 made of pottery and a water discharging device that automatically discharges flush water for cleaning the toilet bowl main body 2 to the toilet bowl main body 2. A unit 4 is provided.
In the urinal 1 of the present embodiment, the lowermost portion of the toilet body 2 is positioned a predetermined distance above the floor surface (not shown), and the back surface of the toilet body 2 is attached along the wall W behind it. A so-called wall-mounted urinal will be described, but it may be a floor-mounted urinal in which the toilet body 2 is disposed on the floor surface.
Hereinafter, in the embodiment of the present invention, the floor side is the lower side, the opposite side to the floor side with the urinal 1 in between is the upper side, and the front side of the wall W and the side facing the urinal 1 in the front side are the front side. When viewed from the front, let the left be the left and the right be the right.

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

  Further, the bowl portion 6 has a standing surface 6a extending in the vertical direction and a bowl-shaped bottom 6b formed below the standing surface 6a. A drain port 10 is provided at the bottom 6 a of the bowl 6. The drainage plate 10 is disposed at the drainage port 10. The toilet body 2 further includes a drainage trap pipe line 14 that is a drainage trap that forms sealed water in the downstream side of the drainage port 10. The drainage trap line 14 communicates with the drainage port 10. On the downstream side of the drainage trap pipeline 14, a transverse drawing piping 3 is connected via a drainage socket 15 or the like that forms a flow passage penetrating the wall surface W.

A bowl surface 48 is formed on the front of the bowl portion 6 and includes a bottom surface forming the standing surface 6a and the bottom portion 6b, and receives a urine. The bowl surface 48 has a generally J-shaped shape in a side view. . The bowl surface 48 is formed to extend to the front surface 7 of the storage chamber 8 of the toilet body 2.
The bowl surface 48 has, from the top to the bottom, an arc-shaped front surface portion 48a opened so that the front surface faces the user. The bowl surface 48 is not provided with a side portion projecting like a wall forward from the conventional bowl surface in the upper region where the spreader 30 is provided, and is formed only from the front portion 48a. Such a front portion 48 a forms a forward curved surface in which a perpendicular perpendicular to the curved surface of the front surface portion 48 a is directed to the standing position of the user standing in front of the toilet body 2. That is, in the horizontal cross section, the front portion 48a extends horizontally with respect to the tangent extending in the horizontal direction at all the positions, and connects the left end 48b and the right end 48c of the bowl surface 48 in the horizontal direction. Cross with the minute.

  The front surface 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 48b to the right end 48c of the bowl surface 48 in horizontal cross section One arc, and is formed along an arc (referred to as a single R). The bowl surface 48 in the lower region below the upper region forms a combined curved shape of a combination of arcs having two types of curvature radius R or a combination of arcs and straight lines. The front portion 48 a of the bowl surface 48 is formed to be inclined rearward from the upper end 48 d of the bowl surface 48 downward.

  The bowl surface 48 of the bowl portion 6 is formed such that the radius of curvature of the horizontal cross section thereof becomes smaller toward the lower side. The radius of curvature of the arc of the horizontal cross section is formed to gradually decrease as it goes downward from the upper end 48d of the bowl surface 48, and the lateral width of the bowl surface 48 gradually as it goes downward (a front view of the bowl surface 48 Is formed so as to reduce the projected width). 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 surface portion 48a of the bowl surface 48 is compared in a plan view at a distance L1 (L1 = 150 mm) from the upper end 48d of the bowl surface 48, that is, at the height position of the horizontal cross section across the spreader 30. It is formed by an arc of a single radius of curvature with a radius of curvature R1 (R1 = 300 mm), which is a large radius of curvature.

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

  The radius of curvature of the front portion 48a is set, for example, in the range of 200 to 500 mm, preferably in the range of 200 to 400 mm. With such a range, it is possible to prevent the hand or arm holding the user's local part from coming into contact with the bowl surface, making it easy for the user to approach the urinal at the time of addition, resulting in a floor due to urination. Can be prevented from occurring.

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

  In a further lower region of the bowl surface 48, a front portion of an arc-shaped portion which opens in a direction toward the user in plan view at a distance L4 (L4 = 500 mm) from the upper end 48d of the bowl surface 48 It is formed by 48a and the straight part 48j which protrudes toward a user by the both sides. The radius of curvature R4 of the arc-shaped portion is smaller than the radius of curvature R3.

  Furthermore, the left end 48 b and the right end 48 c of the bowl surface 48 are formed so as to gradually project forward as going downward. Further, in the lower front of the bowl portion 6, the left end 48b and the right end 48c of the bowl surface 48 are coupled to each other by going to the center in the left-right direction on the front side of the drainage port 10, and the tip 48f is It is formed. In the present embodiment, the bottom 6 b of the bowl 6 is below the tip 48 f.

The bowl surface 48 includes a shelf 42 extending downward from the left and right sides of the bowl surface 48 to the front side. The shelf 42 guides a part of the washing water reaching near both left and right sides of the bowl surface 48 in the main washing and discharging water mode (first water discharging mode) to be described later from the left and right sides of the bowl surface 48 toward the front side. There is.
The shelf 42 extends from the lower region of the bowl surface 48 toward the lower side of the tip 48 f. The shelf 42 protrudes laterally inward from the bowl surface 48, and forms a flat portion on the top of the shelf 42 so that water can easily flow. Therefore, even if the amount of flush water is reduced in the flush flush mode, the shelf 42 allows flush water to reach the front portion of the bowl surface 48 to flush the bowl surface 48 more reliably than ever before. can do.

  A spreader 30, which is a first water discharge unit for discharging washing water to the standing surface 6a, is provided at the center in the left-right direction in the upper region of the bowl surface 48, and the wall surface of the front end (tip 48f) of the bottom 6b is downward. And the 2nd water discharge part 37 which discharges a rinse water toward the back is provided.

  The drainage trap pipe line 14 is formed as a water saving type trap such that the volume of the washing water stored so as to form sealed water in the drainage trap pipe line 14 is 200 ml or less. The drainage trap pipe line 14 of such a water saving type trap can replace the washing water in the drainage trap pipe line with a small amount of washing water as compared with the conventional drainage trap pipe line having a volume of about 700 ml. The volume of the water saving type drainage trap pipeline 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 120 ml. Since such a water saving type drainage trap pipeline has a volume smaller than the urine volume of the user's urine, the urine concentration of the flush water in the drainage trap pipeline 14 tends to be high, and this urine Dilution of water is effective for suppressing the deposition of urinary stones in the drainage trap pipeline 14 and the horizontal draw pipe 3.

  The drainage trap pipeline 14 includes a downward pipeline 14a, a laterally extending folded pipeline 14b, and an upward pipeline 14c. The downfall conduit 14a and the uplift conduit 14c are separated by a common wall 14d. Since the drainage trap pipeline is folded back and forth on the common wall 14d, the drainage trap pipeline 14 is miniaturized and the volume of the drainage trap pipeline 14 is also reduced. In the central cross section shown in FIG. 8, the width 14 e of the lower end portion of the descending pipeline 14 a in the front-rear direction and the width 14 f of the lower end portion of the ascending pipeline 14 c are substantially the same width. Is miniaturized in the front and back direction. Further, in the center cross section of FIG. 1, the width in the front-rear direction from the width 14f of the lower end portion to the width 14g of the upper end portion of the rising pipe 14c is formed substantially constant, and the drainage trap pipe 14 is miniaturized in the front and 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 path 16a to which the cleaning water is supplied from a water supply source (not shown) such as a water supply and the main water supply pipe 16 A pipe joint 24 which is a branching part connected to the water stop valve 18 for water and the downstream end of the main water supply pipe 16 and branching the main water supply pipe 16 into 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 is a first predetermined water flow rate of the washing water passing through the water supply path (the first water supply path 20a) inside the first water supply pipe. A first constant flow valve 26 is provided to adjust the instantaneous flow rate Q1 [liter / min] of
Further, on the downstream side of the first constant flow valve 26, a first on-off valve 28 for opening and closing the first water supply passage 20a is provided. At the downstream end of the first water supply passage 20a on the downstream side of the first on-off valve 28, a spreader 30 for discharging wash water in the bowl portion 6 is provided. A water outlet 32 is connected to the downstream end of the first water supply passage 20a. In the present embodiment, the first predetermined instantaneous flow rate Q1 [liters / minute] is preferably 8 [liters / minute] to 17 [liters / minute], more preferably 8 [liters / minute] to 12 [liters / minute]. It is set to liters per minute], even more preferably to 9 liters per 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 inside of the water supply path (second water supply path 22a) inside thereof is A second constant flow valve 34 is provided to adjust to a second predetermined instantaneous flow rate Q2 [liters / minute] lower than the predetermined instantaneous flow rate Q1 [liters / minute] 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 passage 22a is provided. The second water discharge port 38 of the second water discharger 37 is connected to the downstream end of the second water supply passage 22 a on the downstream side of the second on-off valve 36. In the present embodiment, the second predetermined instantaneous flow rate Q2 [liter / minute] is preferably set to 0.1 [liter / minute] to 8.0 [liter / minute], more preferably 0. It is set to 1 liter / minute to 0.6 liter / minute, and even more preferably to 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 [l / min]. Further, the second water supply passage 22 a is a hose extending to the second water discharger 37 inside the urinal body 2 including the storage chamber 8 in the present embodiment.

  In addition, the automatic cleaning unit 4 is provided in the spreader 30 and detects the presence or absence of the user standing on the front side of the toilet body 2 as a detection sensor 44 as a human body detection sensor, and the detection signal transmitted from the detection sensor 44 The controller 46 is a control unit that receives and controls the operation 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 human-body detection sensor. The detection sensor 44 may be any other detection sensor that detects the user's use of the urinal (for example, the use state in use), for example, a Doppler-type sensor using a microwave, or by use of the user's urinal It may be a flow rate detection sensor or the like that detects the flow of urine. The Doppler sensor can detect not only the user's human body but also the urine flow, so it can more accurately identify the presence or absence of urination on the bowl surface.

  The controller 46 incorporates a CPU, a memory and the like, and can control other devices based on a predetermined control program and the like. The controller 46 controls the opening / closing operation of the first opening / closing valve 28 to start and stop the water discharge from the main water discharge mode (first water discharge mode) from the first water discharge unit 32 or the organic substance contamination suppression water discharge mode. Control. The controller 46 controls the opening and closing operation of the second on-off valve 36 to control 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.

  The controller 46 includes a urine dilution 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 After the use of the user is not detected, the main flush / discharge mode (first flush mode) in which water is spouted from the first spout 32 and the first spout unit 32 periodically based on the set schedule The organic substance fouling suppression spouting mode to suppress the formation of organic matter contamination including biofilm in the drainage trap pipe line 14 and the horizontal pulling pipe 3 by spouting washing water, and the detection sensor 44 detects the use of the user and detects the state The standby mode for waiting for a predetermined standby time P between time t0 when the time t0 has become and time t3 when the urine dilution water discharge mode is performed, and the detection state of the user by the detection When the detection time to be completed is shorter than the use determination time Q set shorter than the waiting time P, the urine sensor does not execute either the urine dilution water discharge mode or the main wash water discharge mode, and the detection state by the detection sensor 44 There is a forced cleaning mode that forcibly executes the main flush water discharge mode when the detection time for which it continues is terminated within a forced cleaning time L longer than the use determined time Q and shorter than the waiting time P. . As shown in FIG. 6, the waiting time P is a time from time t0 to time t3. The use determined time Q is a time from time t0 to time t1. The forced cleaning time L is a time from time t1 to time t3.

  In the present embodiment, the first constant flow rate valve is used as a flow rate adjustment unit that adjusts the instantaneous flow rates Q1 and Q2 of the wash water of the first water supply passage 20a and the second water supply passage 22a of the automatic cleaning unit 4, respectively. Although the form which adopted each of 26 and the 2nd constant flow valve 34 is explained, it is not restricted to these forms, for example, it is suitable flow rate to wash water using a flow sensor etc. Other 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 water outlet 32 and discharges the flush water from the first water outlet 32. However, the present invention is not limited to such a form, For example, a third water discharge port is formed separately from the first water discharge port, and a charge release bacteria unit is further provided to generate the power release bacterial water, and the third water discharge port is supplied with the power release bacterial water. The sterilizing water may be discharged from the water spout 3. In addition, the sterilizing water may be configured to be capable of spouting water from the first spout and / or the second spout.

As shown in FIG. 1, the wash water supplied from the first water supply passage 20a has a first predetermined instantaneous flow rate Q1 [L / L so as to spread in the left-right direction on the bowl surface 48 from the first water outlet 60. It is designed to be discharged as the wash water W1 for min.
As a result, a water film is formed in the first region A including the center in the left-right direction of the standing surface 6 a by the wash water from the first water discharge port 60. The center in the left-right direction is the center in the left-right direction in a front view of the left end 48b and the right end 48c of the bowl surface 48, and is the center line in the left-right direction. It is a position where it overlaps visually. In the present embodiment, the first area A extends in the left-right direction to the shelf 42 in a front view, and the height position of the tip 48 f is the lower end. A region not overlapping with the first region A in the bowl portion 6 in a front view is a second region B, and in the present embodiment, a region excluding the first region A in the standing surface 6a (in FIG. It is the area | region (outside of the end of 1st area | region A shown) and the bottom part 6b.

  On the other hand, as shown in FIG. 3, the second water discharge port 38 is formed at the front end of the bottom 6 b of the bowl 6 which is the second region B (position overlapping in front view behind the tip 48 f) The water is discharged as wash water W2 having a second predetermined instantaneous flow rate Q2 [liter / minute] toward the rear so as to spread in the left-right direction of the bottom surface of the bottom portion 6b of 6.

  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 flow chart showing the control operation of the controller for each usage cycle in which the user uses the urinal according to the first embodiment of the present invention, and FIG. 6 shows the small operation according to the first embodiment of the present invention It is a timing chart which shows the state of a detection sensor, the user's use state, and the control operation of a controller for every use which uses a toilet bowl.

First, the operation (action) of normal toilet cleaning in the urinal 1 according to the first embodiment of the present invention will be described.
As shown in FIG. 5, when the user stands in front of the bowl portion 6 of the toilet body 2 of the urinal 1 at S0, the detection sensor 44 detects the user's use (time t0). The detection signal is transmitted to the controller 46, and the controller 46 recognizes the presence of the user. At this time, the first on-off valve 28 is in a closed state, and the second on-off valve 36 is also closed. The controller 46 executes a standby mode for waiting for a predetermined standby time P from time t0 when the detection sensor 44 is in the detection state. The controller 46 does not start the urine dilution water discharge mode immediately after time t0, and suppresses the water discharge of the flush water, which hardly contributes to the dilution of urine before the user starts urination, by executing the preceding standby mode. , Can reduce the wash water to dilute the urine. The predetermined waiting time P is a waiting time intentionally realized for achieving the purpose by a program or the like recorded in the controller 46, and the water discharge operation which slightly occurs due to the delay of the signal transmission or the operation of the valve body. It is distinguished from the delay time of

  In S1, the controller 46 determines whether or not the use determination time Q (for example, about 5 seconds) has elapsed while the detection state of the user by the detection sensor 44 is continued. The use determined time Q is set shorter than the waiting time P. When the continuation of the detection state of the user by the detection sensor 44 ends in a time shorter than the use determination time Q, the controller 46 determines that the user has gone without urinating the urinal 1, which is useless. In order to prevent the use of the flush water, the standby mode is interrupted and the non-use mode is executed, and neither the urine dilution spouting mode nor the main flush spouting mode is executed, the process proceeds to S12 and a series of operations are ended. The controller 46 determines that the user is using the urinal 1 when the detection time in which the detection state of the detection sensor 44 continues is the time determined to be the use determination time Q or more, and proceeds to S2 to stand by Continue the mode.

  As shown in FIG. 6, the user is ready to take off clothes and urinate 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 an average clothes removal time E, which is assumed to be ready to take off the clothes and prepare for urination, from the time t0. The clothes removal time E is set to about 8 seconds. At time t2, the user starts urination.

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

Here, in the urinal of the first embodiment of the present invention, the case of executing the urine dilution water discharge mode after the waiting time P has elapsed will be described.
At time t0, detection of use of the user 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 water discharge mode.
At time t2, the controller 46 is continuing the standby mode, and the urine dilution water discharge mode is not performed. At time t2, the user's urination starts. As shown at time t2 to time t4, the urine flow flows into the bowl portion 6, and the urine concentration in the drainage trap pipeline 14 gradually rises. Thus, even if the user starts urination while waiting in the standby mode, the flow of urine is relatively weak at the beginning of urination and the flow rate is relatively small. The urine concentration of risins slowly increases and does not rise immediately to the extent that uroliths occur.

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

  At time t4, the wash water diluted on the bowl surface 48 flows into the drainage trap pipeline 14 by the function of the urine dilution and spouting mode, and the urine concentration of the washing water in the drainage trap pipeline 14 is urinary stone generated. The urine concentration M is maintained at a level that makes it difficult. After the time t4, since the urine dilution water discharge mode is executed, the increase in the urine concentration in the drainage trap pipeline 14 is suppressed. Thus, even if the urine dilution and spouting mode is executed after the waiting time P has elapsed, the urine concentration of the flush water in the drainage trap pipeline 14 can be controlled to a predetermined urine concentration M or less so as not to increase excessively. It becomes. Thus, in order to prevent the urine concentration of the washing water in the drainage trap pipeline 14 from rising too much, the waiting time P may be set to a time within the range of 6 seconds to 11 seconds from time t0. preferable. In addition, the waiting time P may be set as a time from a time t0 to a time two or three seconds after the urination start timing assumed. Therefore, the start of the execution of the urine dilution water spouting mode is made to stand by for the waiting time P which is equal to or more than the urination start scheduled time. Therefore, in the early stage of urination where the water flow of urination is relatively weak, it is possible to suppress the spouting of the wash water which hardly contributes to the dilution of the urine and save the wash water for diluting the urine.

  In addition, even if urinating of the user is started while waiting in the standby mode, flush water from the previous flush exists in the drainage trap pipeline 14 in the early stage of urination, and even if urine flows, urine of the flush water The concentration is kept relatively low. Therefore, the generation of urinary calculus is suppressed. Furthermore, the urine concentration in the drainage trap pipeline 14 can be reduced by execution of the urine dilution water discharge mode following the standby mode to suppress the generation of urinary calculus. Therefore, in the standby mode, it is possible to suppress the spouting of the wash water which hardly contributes to the dilution of the urine, and save the wash water for diluting the urine.

  In addition, since the user does not urinate until the clothes removal time E has elapsed at time t2, the urine concentration of the flush water in the drainage trap pipeline 14 does not rise. Therefore, by waiting until the start of the execution of the standby mode, it is possible to delay the start of the urine dilution water spouting mode, to suppress the spouting of the wash water which hardly contributes to the dilution of urine, and save the wash water for diluting the urine.

  Next, a case where the urine dilution water discharge mode is performed substantially simultaneously with the start of urination in the urinal according to the first embodiment of the present invention will be described. The description of the operation overlapping with the case of executing the urine dilution water discharge mode after the elapse of the standby time P will be omitted. At time t2, the user's urination starts. At time t2, the controller 46 ends the standby mode and executes the urine dilution water discharge mode. Since the urine dilution water discharge mode is started, the urine flow is mainly diluted at the bowl surface 48, and the urine concentration of the wash water rises relatively slowly. As described above, the increase in the urine concentration of the flush water in the drainage trap pipeline 14 is gently suppressed, and rises to the urine concentration of the flush water diluted in the urine dilution spouting mode. Even when the urine dilution and spouting mode is performed simultaneously with the start of urination, the urine concentration of the flush water in the drainage trap conduit 14 is controlled to a predetermined urine concentration M or less.

Next, the case where the urine dilution water discharge mode is not performed will be described as a comparative example.
After time t2, the urine dilution water discharge mode is not executed. At the initial stage of urination at time t3 to time t4, the urine concentration of the wash water gradually increases. Since the urine dilution water discharge mode is not executed after time t4, the urine concentration of the flush water in the drainage trap pipeline 14 rises above the predetermined urine concentration M. In such a comparative example, the washing water in the drainage trap pipeline 14 is almost replaced with the user's urine and the urine concentration of the washing water is about 100% until the main washing and discharging mode is performed.
It becomes.

Referring back to FIG. 5, the flowchart will be described again.
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 water discharge mode, so the user is temporarily urinating If so, urine dilution and flushing of the bowl 6 and the drain trap line 14 may also be left unattended. Therefore, the controller 46 determines that the user may slightly urinate the bowl 6, and interrupts the standby mode to prevent the urine from remaining in the bowl 6. The forced cleaning mode is executed, and the process proceeds to S11. By the forced cleaning mode, the main cleaning water discharge mode can be preliminarily executed in S11, and the dilution of the urine and the cleaning of the cleaning of the bowl 6 and the drainage trap pipeline 14 can be surely performed to keep the bowl 6 hygienic . In S4, when the detection sensor 44 continues the detection state, the controller 46 returns to S2.

  In S5, the controller 46 executes the urine dilution water discharge mode at time t3 when the standby time P has elapsed from time t0. As shown in FIG. 4, the controller 46 opens the second on-off valve 36 at the start of the urine dilution water discharge mode, and flushes the main water supply passage 16 a of the main water supply tube 16 with the second water supply tube 22. Supply to the second water supply passage 22a. The controller 46 keeps the first on-off valve 28 closed. The wash water W2 having flowed to the second water supply passage 22a is adjusted to a relatively low second predetermined instantaneous flow rate Q2 [liter / minute] by passing through the second constant flow rate valve 34, and the second The water is discharged from the second water outlet 38 of the water discharger 37.

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

  At S7, the controller 46 determines whether the detection sensor 44 remains in the detection state. When the detection sensor 44 maintains the detection state, the controller 46 proceeds to S8. The controller 46 determines that the user has finished urination and has left the front of the toilet body 2 when the detection sensor 44 no longer detects use of the user, thereby suppressing wasteful consumption of urine dilution spout. Then, the process proceeds to step S9 in order to execute the main flush water discharge mode in which the drainage trap pipeline 14 and the horizontal draw pipe 3 are sufficiently cleaned to suppress the generation of the urinary stones thereafter.

  In S8, the controller 46 determines whether the abnormal use time has elapsed from time t0. When the abnormal use time has elapsed, the controller 46 determines that the use state of the toilet body 2 different from the failure of the detection sensor 44 or the urination of the user is wasted, and waste water in the urine dilution water discharge mode. The process proceeds to S9 to suppress consumption. When the abnormal use time has not elapsed, the controller 46 determines that the user's urination continues, and returns to S7 so that the urine dilution water discharge mode can be appropriately executed during the user's urination.

  In S9, the controller 46 ends the urine dilution water discharge mode, and proceeds to S10. As shown in FIG. 4, the controller 46 closes the second on-off valve 36 at the end of the urine dilution water discharge mode, and stops the supply of flush water to the second water supply passage 22 a. Thus, 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 integration of the water discharge amount in the urine dilution water discharge mode to the integrated amount Wv, and the process proceeds to S11.

In S11, the controller 46 executes the main flush 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 execution of the main flush water discharge mode. The washing water of the main water supply passage 16 a of the main water supply pipe 16 flows through the pipe joint 24 only to the first water supply passage 20 a.
Next, the wash water W1 having flowed to the first water supply passage 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. Thereafter, it passes through the first on-off valve 28 and is supplied to the first outlet 32 of the spreader 30. The controller 46 causes the first on-off valve 28 to open for a certain period of time so as to discharge the water discharge flow rate of 0.5 [liter] for each use in the main cleaning water discharge mode.

  As shown in FIG. 1, the wash water W1 spouted from the first spout 60 is spouted so as to spread in the left-right direction along the bowl surface 48 and spreads from the central portion 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 more extensively than before. The wash water W1 spreads to the vicinity of the left and right sides of the bowl surface 48 and flows downward without jumping out to the outside of the bowl portion 6.

  A part of the washing water W1 spouted from the first spout 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 more extensively than before, and the non-washable portion of the bowl surface 48 can be reduced.

  The washing water W1 flowing down the bowl surface 48 flows into the drainage trap pipe line 14 from the drainage port 10. The flush water W1 flows toward the horizontal draw pipe 3 on the downstream side of the drain trap pipe 14, thereby discharging the urine in the drain trap pipe 14 or the horizontal draw pipe 3 to the downstream side. The flush water W1 flows at a relatively high instantaneous flow rate Q1, and the diluted urine in the drainage trap pipeline 14 is replaced with fresh flush water to relatively increase the urine concentration of the irrigation water in the drainage trap pipeline 14 It can be greatly reduced. After the predetermined time has elapsed, the controller 46 closes the first on-off valve 28 to stop the water discharge operation by the spreader 30, and ends the operation of the main water discharge mode, and the process proceeds to S12.

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

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

Next, the operation (action) of the organic substance dirt suppression 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 of a predetermined time T from the time when the previous organic matter contamination suppression water discharge mode is performed.
The controller 46 determines whether a predetermined time T has elapsed. When the predetermined time T has elapsed, the controller 46 determines that water spouting is effective in order to suppress the growth of bacteria causing biofilms in the drainage trap pipeline 14 and the horizontal draw pipe 3, Decide to execute the organic matter contamination suppression water discharge mode this time.

  The controller 46 is responsive to the integrated amount Wv of the amount of water spouted in the urine dilution spout mode from the previous execution of the organic substance stain suppression water discharge mode to the determination that the current organic substance dirt suppression water discharge mode is performed. The amount of spouted water in the stain suppression spouting mode is set to spout the flush water of the spouted flow rate set from the first spouting portion 32 of the spreader 30.

  In the urinal 1 according to the first embodiment of the present invention described above, the second region B does not overlap with the first region A on the center side in the left-right direction of the standing surface 6a in the bowl portion 6 in a front view. By forming the spout 38, it is possible to easily flow spouted water in the urine dilution spouting mode to a region other than the first region A where urine is considered to be easily landed. Therefore, the urine can be made to flow down from the drainage port 10 while diluting the urine with the flush water spouted in the urine dilution spout mode, and the generation of urinary stone can be suppressed, and the flush water spouted in the urine dilution spout mode It is possible to suppress the occurrence of water splashing due to the interference between urine and urine.

  Further, in the urinal 1 according to the first embodiment of the present invention described above, the second water discharge port 38 is provided at the bottom 6 b of the bowl 6. Therefore, water spouting in the urine dilution water spouting mode can be more easily flowed to a region other than the first region A where urine is considered to be easily landed. Therefore, it is possible to make the urine flow down from the drainage port 10 while diluting the urine by the flush water spouted in the urine dilution spout mode, and it is possible to suppress the generation of urinary stone, and the flush water spouted in the urine dilution spout mode It is possible to further suppress the occurrence of water splashing due to the interference between urine and urine. Moreover, compared with the case where it provides other than the bottom part 6b, the user can visually recognize the 2nd water outlet 38, and it can improve an aesthetics.

  Further, in the urinal 1 according to the first embodiment of the present invention described above, the second water outlet 38 is configured to discharge wash water rearward. Therefore, it is usually possible to flush more wash water to the rear where urine is likely to land and spread. Therefore, while suppressing that the wash water discharged in the urine dilution water discharge mode and urine interfere with each other to generate water splash, the drainage outlet 10 while further diluting the urine with the wash water discharged in the urine dilution water discharge mode Can be drained from the

  Further, in the urinal 1 according to the first embodiment of the present invention described above, the second water outlet 38 is provided in front of the water outlet 10. Therefore, it is usually possible to further flush the washing water to the rear where urine is likely to land and spread. Therefore, it is possible to more reliably dilute the urine with the flush water spouted in the urine dilution spout mode while suppressing that the flush water spouted in the urine dilution spout mode interferes with urine and water splash is generated. It can flow down from the mouth 10.

Further, in the urinal 1 according to the first embodiment of the present invention described above, the second water discharge port 38 is provided at the front end of the bottom portion 6 b of the bowl portion 6. Therefore, it is usually possible to further flush the washing water to the rear where urine is likely to land and spread. Therefore, it is possible to more reliably dilute the urine with the flush water spouted in the urine dilution spout mode while suppressing that the flush water spouted in the urine dilution spout mode interferes with urine and water splash is generated. It can be drained from the mouth.
Also, generally, urine forms a urine flow after landing on the bowl surface 48, and flows down the drainage port 10 from one point on the rear side of the drainage port 10, but in the present embodiment, the second spout 38 is Since the water discharge is performed so as to spread in the left and right direction, it can go around the outlet 10 and merge with the urine flow on the rear side. Therefore, it is possible to more reliably dilute the urine with the flush water spouted in the urine dilution spout mode while suppressing the generation of water splashing due to the interference between the flush water spouted in the urine dilution spout mode and the urine more reliably It can be made to flow down from the drainage port 10 while.

Next, a urinal according to a second embodiment of the present invention will be described with reference to FIG. FIG. 7 is a front view showing a urinal according to a second embodiment of the present invention.
The urinal 101 according to the second embodiment will be described only in terms of differences from the urinal 1 according to the first embodiment described above, and similar parts will be denoted by the same reference numerals in the drawings and descriptions thereof will be omitted.

As shown in FIG. 7, the second water discharge port 138 in the second embodiment is provided in the second area B in the standing surface 6 a among the second area B. More specifically, in the present embodiment, the second water discharger 137 forming the second water discharge port 138 is provided on the side of the spreader 30 and above the shelf 42.
The second water discharger 137 is configured to discharge the flush water W2 discharged from the second water outlet 138 in the direction opposite to the direction toward the center line D in the left-right direction of the bowl 6. , Configured to discharge wash water toward the shelf 42. With this configuration, it is possible to suppress the interference between the wash water discharged from the second water discharge port 138 and the urine which is likely to be applied to the first region A. Further, the washing water discharged from the second water discharge port 138 can be guided to the front side of the bottom portion 6 b of the bowl portion 6 by the shelf 42.

  In the urinal 101 according to the second embodiment of the present invention described above, as in the urinal 1 according to the first embodiment, the first region A on the center side in the left-right direction of the standing surface 6 a and the front view in the bowl portion 6 By forming the second water discharge port 138 in the second area B not overlapping with each other, the spouting water in the urine dilution spouting mode can be easily flowed out to an area other than the first area A where urine is likely to land. be able to. Therefore, the urine can be made to flow down from the drainage port 10 while diluting the urine with the flush water spouted in the urine dilution spout mode, and the generation of urinary stone can be suppressed, and the flush water spouted in the urine dilution spout mode It is possible to suppress the occurrence of water splashing due to the interference between urine and urine.

DESCRIPTION OF SYMBOLS 1 urinal 2 toilet bowl body 3 horizontal pulling piping 4 automatic cleaning unit 5 vertical drainage pipe 6 bowl part 6 a standing surface 6 b bottom part 7 front part 8 storage room 10 drainage port 12 eye tray 14 drainage trap pipeline 15 drainage socket 16 main water supply pipe 16a main water supply passage 18 water stop valve 20 water supply pipe 20a water supply passage 22 water supply pipe 22a water supply passage 24 pipe joint 26 first constant flow valve 28 on-off valve 30 spreader (first water discharge portion)
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 48 a front portion 48 b left end 48 c right end 48 d Upper end 48f Tip 48j Straight part 101 Urinal 137 Second water discharger 138 Second water outlet A First region B Second region W Wall surface

Claims (5)

A urinal to be cleaned by using a flush water that has been discharged,
A standing surface extending vertically, and a bowl portion having a bowl-shaped bottom formed below the standing surface and provided with a drainage port;
A drainage trap in communication with the drainage port of the bowl portion;
A first water discharge portion provided in the bowl portion, the first water discharge port discharging water to the standing surface of the bowl portion is formed, and the water discharge portion is raised by the wash water from the first water discharge port. The first water discharger forming a water film on the first region of the standing surface including the center of the lateral surface in the left-right direction;
Forming a second water outlet in a second region of the bowl portion not overlapping the first region, and discharging a wash water from the second water outlet;
A detection sensor for detecting use of the urinal by the user;
A control unit configured to control the discharge of wash water by the first water discharger and the second water discharger;
The control unit
A second spouting mode in which spouting is performed from the second spout while the detection sensor detects the use of the user;
And a first water discharge mode in which water discharge is performed from the first water discharge port after the detection sensor stops detecting use of the user.   The urinal according to claim 1, wherein the second water discharge port is provided at the bottom of the bowl portion.   The urinal according to claim 2, wherein the second water discharge port discharges washing water rearward.   The urinal according to claim 3, wherein the second outlet is provided in front of the outlet.   The urinal according to claim 4, wherein the second outlet is provided at the front end of the bottom of the bowl portion.

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