JP2009084779A - Toilet bowl apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet bowl apparatus preventing excrement from sticking to a bowl surface in the case of excrement and to reduce splash water when urinating. <P>SOLUTION: The toilet bowl apparatus has jet water supply means 30, 16 supplying wash water into a bowl from a jet port 16 of a toilet bowl 1; rim water supply means 30, 18 supplying wash water into the bowl from a rim port 18; and a seating detecting means for detecting seating of a user. The apparatus has a control part 60 for controlling water supply from the jet water supply means 30, 16 so that a water level in the bowl immediately after the wash water is supplied into the bowl to wash is a first water level lower than an overflow water level L1 to start overflowing from a trap part 14 and higher than a lowest sealing water level L2 which is the lowest water level to obtain a sealing water effect and that the water level in the bowl after the detection of the seating detecting means is a second water level higher than the first water level and lower than the overflow water level L1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a toilet device, and more particularly, to water storage control of the toilet device. Reserved water is also referred to as sealed water or refill water, and is water supplied to prevent odor from sewage or water pipes from flowing into the toilet bowl.

  A toilet with a large reservoir has the advantage that dirt is less likely to adhere to the ball surface, but there is a problem that water tends to splash during urination. In particular, when sitting and urinating, men tend to land above the overflow surface, while women tend to splash water because the urine falls directly down, that is, directly into the pooled water. However, there is a problem that if a man urinates in a standing position, the water will bounce off and the water will splash on the upper surface of the toilet.

Patent Document 1 proposes to lower the water level when the cleaning mechanism is not driven. In Patent Document 2, urination is performed on a ball with a lowered water level, and the user's urine volume is calculated by measuring the difference in water level before and after urination. Then, flush water is supplied to the overflow water level for toilet flushing. A toilet device to perform is disclosed.
JP 2002-256614 A (summary) Japanese translation of PCT publication No. 2004-113630 (summary)

  Since patent document 1 requires means, such as a drainage pump which lowers | hangs the water surface of a toilet bowl, in order to eliminate the water splash at the time of a piss, an apparatus structure becomes complicated. Patent Document 2 originally differs in that the problem is measurement of urine volume, and there is no configuration for preventing the attachment of filth.

  The present invention relates to a toilet device that prevents filth from adhering to a ball surface during stool and reduces rebound water during urination.

  The toilet device according to one aspect of the present invention includes a toilet, zet water supply means for supplying cleaning water into the ball from the toilet mouth, and rim water supply means for supplying cleaning water into the ball from the rim opening of the toilet And a seating detecting means for detecting the seating of a user on the toilet, the water level in the bowl of the toilet immediately after the cleaning water is supplied into the bowl of the toilet and washed, Control of the water supply by the Zet water supply means so that the first water level is lower than the overflow water level that starts overflow from the trap part of the toilet bowl and is higher than the lowest sealed water level that is the lowest water level to obtain the effect of sealing water Then, after the seating detection means detects the seating of the user, water supply by the rim water supply means is performed so that the water level in the bowl of the toilet bowl becomes a second water level higher than the first water level and lower than the overflow water level. Control to control Characterized in that it has a. According to such a toilet device, when the urine is erected in the standing state or when urine is taken immediately after sitting, the water level is lowered to lower the bounce or bounce height, and after the seating detection means detects the seating, The water level can be increased to prevent filth deposits during stool. Further, when the rim supply means supplies water, dirt is less likely to adhere to the ball.

  Time measuring means for measuring the time when the seating detecting means detects the user's seating, and the rim water supply until the time measured by the timing means after the seating detecting means detects the user's seating is a set time You may further have a delay time setting means to set the said setting time in order to delay the water supply of a means. In this way, when urine is continuously performed after urination, when the urine is urinated, the water level is lowered and rebounded or the height of rebound is lowered. Can be prevented.

  You may further have a delay time change means which can change the said setting time. Thereby, in the urinal of the men's toilet in the office where the urinals are separately installed, the delay can be reduced to zero or individual settings can be made for each person.

  Further objects and other features of the present invention will become apparent from the preferred embodiments described below with reference to the accompanying drawings.

  ADVANTAGE OF THE INVENTION According to this invention, the toilet device which reduces the bouncing water at the time of a urine while preventing adhesion of a filth to the ball | bowl surface at the time of a stool can be provided.

  Hereinafter, a toilet apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  1 (a) and 1 (b) are a schematic partially transparent side view and a side view of the toilet device 100 according to the first embodiment of the present invention. FIG. 2 is a block diagram of the toilet device 100. The toilet device 100 includes a toilet 1 and a cleaning unit that cleans the toilet 1 and supplies water to the jet mouth (this water supply may be referred to as “jet water supply” hereinafter) using a pump.

  The toilet bowl 1 is a flush toilet bowl, and includes a ceramic body 2 having a ball 12 for receiving filth inside, a toilet seat 4 disposed on the body 2, and a lid 7 disposed to cover the toilet seat 4. And a local cleaning device (not shown) disposed at the upper rear part of the main body 2. As shown in FIG. 3 to be described later, a seating sensor 5 that functions as a seating detection unit that detects the seating of the user on the toilet 1 is provided inside or on the main body side of the toilet seat 4. As the seating sensor 5, for example, a sensor or a pressure sensor that measures a change in capacitance of the toilet seat heater of the toilet seat 4 can be used. 2a is a water receiving tray. In addition, the toilet device 100 further includes a human body sensor 6 that detects entry and exit of the user's toilet. As the human body sensor 6, an infrared sensor, a sensor that detects lighting of a toilet light, a sensor that detects any switch of the toilet device 100, a sensor that detects the opening of the lid 7, and the like can be used.

  The cleaning unit performs rim cleaning (or ball cleaning), toilet cleaning, and water supply. In the rim cleaning, the ball 12 is cleaned by discharging water from the rim opening 18 in the vicinity of the upper edge of the ball 12 along the rim 13 through the throttle 17 in a swirling manner. In toilet bowl cleaning, water is discharged from the jet opening 16 at the bottom of the ball 12, and the filth and accumulated water of the ball 12 are drained from the drain pipe D using a siphon phenomenon. In the water supply, the water is supplied to the balls 12 to prevent odors from the sewage from flowing into the toilet bowl.

  The cleaning unit includes a water supply system, a rim cleaning / reserved water supply system (rim water supply means), a toilet bowl cleaning / reserved water supply system (jet water supply means), and a control system. Some components of the cleaning unit are provided in a functional unit 10 provided behind the main body 2 shown in FIG. The functional unit 10 is covered with a side panel 10a.

  The water supply system is directly connected to a water pipe that supplies cleaning water, and supplies water to the toilet cleaning / pump water supply system and water to the rim cleaning / pump water supply system, and has a valve unit 30. The valve unit 30 receives the water flowing in from the water inlet 22 through the water supply fitting 20 and the branch fitting 21 for the hand-washer through the flexible hose 24. The water supply fitting 20 has a stop cock 20a and a strainer 20b. A branch fitting 23 for local cleaning is connected to the water inlet 22 and supplies water to the local cleaning device via the flexible hose 24.

  The constant flow valve 31 limits the inflowing water to, for example, a predetermined flow rate of 16 liters / minute or less. Wash water that has passed through the constant flow valve 31 flows into the water supply electromagnetic valve 33.

  The water supply electromagnetic valve 33 is opened / closed by a water supply electromagnetic valve driving unit 32 shown in FIG. 3 to be described later, and opens / closes the flow path to the flow path switching valve 35. The flow path of the water that has passed through the water supply electromagnetic valve 33 is switched by the flow path switching valve 35.

  The flow path switching valve 35 is driven by a flow path switching valve drive unit 34 shown in FIG. 3 to be described later, and in the case of water supply to the toilet flushing / reserved water supply system, a flow path is selected as the tank water supply path 35a, and the rim In the case of supplying water to the cleaning / pumped water supply system, a flow path is selected as the rim water supply path 35b.

  The rim cleaning / reservoir supply system supplies rinsing water by supplying cleaning water from the rim port 18 of the toilet bowl 1 into the ball by the water supply pressure, and stores water from the rim port 18 of the toilet bowl using the same route. Supply. The rim cleaning / reserved water supply system uses a path (rim water supply path 35b) that does not pass through the pump unit 50, which is different from a water path (cleaning water pipe 44b) that passes through the pump unit 50 described later. The rim cleaning / water storage supply system has a rim port 18 and a valve unit 30. The rim port 18 is formed in the rim 13 of the ball 12 and discharges cleaning water along the rim 13. The vacuum breaker 36 is disposed in the rim water supply path 35 b above the upper end surface of the ball 12, and prevents the backflow of the cleaning water from the rim port 18. Further, the vacuum breaker 36 is disposed above an overflow edge of the tank 40 described later, and the steam from the vacuum breaker 36 is discharged out of the duct.

  The toilet flushing / reserved water supply system generates a siphon phenomenon by the pump unit 50 to perform toilet flushing, and supplies the retained water from the jet port 16 of the toilet 1 using the same flow path. The toilet flushing / reserved water supply system includes a drain trap line 14, a jet port 16, a valve unit 30, a tank 40, a pump unit 50, a jet connection unit 38, a flapper valve 45, and a water drain plug 46. Have

  The drain trap pipe 14 has an S shape that descends from the bottom of the ball 12 and extends downward, and is a trap part where a siphon phenomenon occurs. The water level L1 at the top of the lower profile of the drain trap pipe 14 in FIG. 2 is the overflow water level. Further, the water level at the boundary with the ball 12 in the upper contour of the drain trap pipe 14 in FIG. 2 is the lowest sealed water level (sometimes referred to as “draft level”) for realizing the sealing effect.

  The jet port 16 ejects water and supplies stored water necessary for generating a siphon phenomenon. The jet port 16 is formed at the bottom of the ball 12 and discharges water toward the inlet of the drain trap pipe 14. The size of the jet port 16 is increased from a conventional circular shape of about 10 mm to a square shape of 10 mm × 20 mm, and a large volume of water can be supplied.

  The tank 40 stores water necessary for the occurrence of the siphon phenomenon. The tank 40 of this embodiment has an internal volume of 3 liters or less (about 2.5 liters to 3 liters).

  The front end of the tank water supply path 35a is opened above the overflow edge of the tank 40 to prevent backflow from the tank 40 to the tank water supply path 35a. Inside the tank 40, an upper end float switch 41a and a lower end float switch 41b are arranged to detect the water level in the tank 40. The upper end float switch 41a is turned on when the water level in the tank 40 reaches a predetermined stored water level, and the control unit 60 described later detects this and closes the water supply electromagnetic valve 33. The lower end float switch 41b is turned on when the water level in the tank 40 drops to a predetermined water level, and the control unit 60 detects this and stops the pump unit 50.

  A lid 42a is attached to the upper portion of the tank 40 so as to cover the opening at the upper end thereof, and the outer periphery of the lid 42a and the inner wall surface of the upper portion of the tank 40 are joined in a watertight manner. The lid 42a is provided with a circular hole, and a cylindrical body 42b is attached so as to extend upward so as to surround the hole. The upper end of the cylindrical body 42 b is an overflow edge of the tank 40. The wall surface of the tank 40 extends above the lid body 42a, and the wash water overflowing from the overflow edge of the tank 40 flows down the outside of the cylinder body 42b and accumulates on the lid body 42a (water discharge space).

  The pump unit 50 pressurizes the water stored in the tank 40 and discharges it from the jet port 16. As shown in FIG. 3, the pump unit 50 is a DC pump including a pump motor driving unit 51 and a pump motor 52 that is a DC motor. As will be described later, the pump unit 50 changes the flow rate by changing the number of rotations when cleaning the toilet bowl and supplying the stored water. In this embodiment, as will be described later, it is changed from 75 liters / minute to 20 liters / minute. There are a direct-current pump and an alternating-current pump, and the direct-current pump is easy to control the rotational speed. The pump unit 50 is connected by a washing water pipe 44 a extending from the lower portion of the tank 40, and is disposed below the full water position (overflow line) OFL of the tank 40. As a result, water is supplied to the pump unit 50 even when the tank 40 is full.

  A flapper valve 45 and a water drain plug 46, which are check valves, are provided in the middle of the washing water pipe 44a. These are configured as a single unit and are disposed at a height near the lower end of the tank 40 below the pump unit 50. By opening the water drain plug 46, water in the tank 40 and the pump unit 50 can be discharged during maintenance or the like. The flapper valve 45 prevents the wash water from flowing back from the pump unit 50 to the tank 40 when the water level in the tank 40 becomes lower than the height of the pump unit 50, and preventing the water from escaping from the pump unit 50.

  The outlet of the pump unit 50 is connected to the jet port 16 at the bottom of the ball 12 via a cleaning water conduit 44b. In the middle of the washing water pipe 44b, a convex shape is formed upward, and the top of the washing water pipe, which is the highest part of the convex part, is the most water flow path from the tank 40 to the jet port 16. It is a high part. The height of the top of the washing water pipe is higher than the full water position OFL of the tank 40 and lower than the overflow edge of the ball 12.

  The jet connection unit 38 includes a flapper valve 39, and when the water level of the tank 40 exceeds the full water position OFL, the cleaning water from the overflow channel 38a is connected to the cleaning water pipe 44b.

  The cleaning unit employs a siphon-zette type that forcibly causes a siphon phenomenon by ejecting water from the jet port 16 in the toilet bowl cleaning.

  In the conventional siphon-zette type, noise is generated when the siphon is out of air. In particular, in a toilet of the type that ejects blow flow from the jet port 16 that pushes away filth floating after the siphon breaks off at high speed (approximately 8.7 m / s), noise is generated when the blow flow is ejected. To do. In addition, the conventional direct water pressure jet type has poor flow control accuracy due to variations in water supply pressure. For this reason, there was wasted water when the siphon phenomenon occurred, and the water saving effect was not sufficient. Furthermore, the conventional siphon-zette type takes time until the occurrence of the siphon phenomenon.

  On the other hand, the cleaning unit ejects water from the jet port 16 using the pump unit 50. By controlling the flow rate through the rotation speed of the pump unit 50, a siphon phenomenon can be generated with a minimum amount of water, and waste water can be prevented and the water saving effect can be improved. Water supply pressure varies, and flow control is difficult. Even if a constant flow valve is provided, the constant flow valve is mechanically controlled by a spring, so the measurement accuracy varies and the accuracy is poor. On the other hand, if a flow rate sensor is provided and the flow rate is measured and the flow rate is controlled, the accuracy increases, but the cost increases.

  The cleaning unit supplies a large volume of water at a low speed (about 3.7 m / s) using the pump unit 50. Since the speed at which the levitated filth is pushed in becomes low, the noise at that time is reduced. Further, as described above, by increasing the diameter of the jet port 16 and supplying it using the large-capacity pump unit 50, the drain trap pipe 14 for causing the siphon phenomenon is quickly filled and the siphon phenomenon is immediately generated. can do. In addition, by continuously supplying a large volume of water enough to cover the inner surface of the drain trap pipe 14 during the occurrence of the siphon phenomenon, the amount of air sucked in when the siphon is cut off can be suppressed. Noise is suppressed.

  The cleaning unit achieves the same miniaturization as the tankless type by limiting the capacity of the tank 40 to about 3 liters or less. To clean the toilet 1, 5.5 liters of water is required, and the minimum amount of water that causes siphoning is 3 liters. Also, 2.5 liters of water used for rim cleaning can maintain the cleaning effect even when the water pressure is low. For this reason, the water in the tank 40 is not used for rim cleaning by separating the rim water supply path 35b that is the path of the rim cleaning / pumped water supply system from the cleaning water pipe 44b that is the path for using the pump unit 50. I made it. As a result, the tank 40 does not need to store water for rim cleaning. Further, the cleaning unit stops the pump unit 50 and supplies water to the tank 40 between toilet cleaning and the supply of stored water. As a result, the tank 40 does not store the combined amount of cleaning water and stored water for cleaning the toilet bowl, and it is sufficient to have a capacity for storing only the cleaning water for cleaning the toilet bowl. As a result, the capacity of the tank 40 can be 3 liters required for the siphon phenomenon. By reducing the capacity of the tank 40, the toilet device 100 can be downsized. Note that the amount of water to be stored in the tank 40 is less than 3 liters (for example, 2.5 liters), thereby further reducing the size of the toilet device 100, and simultaneously supplying water to the tank 40 when cleaning the toilet bowl. 3 liters may be secured.

  As shown in FIG. 3, the control system includes a control unit 60, a power supply unit 61, an operation unit 62, a memory 63, a timer 64, a delay time setting unit (delay time setting means) 65, and a delay time change. Part (delay time changing means) 66. The control unit 60 includes a seating sensor 5, a human body sensor 6, a water supply electromagnetic valve drive unit 32, a flow path switching valve drive unit 34, an upper end float switch 41a, a lower end float switch 41b, and a pump motor drive in addition to the components of the control system. The unit 51 is electrically connected.

  The control unit 60 includes a CPU that controls the operation of each unit based on information stored in the operation unit 62 and the memory 63. The power supply unit 61 turns on and off the power supply of the control unit 60 and is switched by the user. The controller 60 controls the operation of the jet water supply means and the operation of the rim water supply means based on the detection result of the seating sensor 5.

  More specifically, as will be described later, the control unit 60 controls the water supply by the jet water supply means so that the water level in the ball becomes the first water level immediately after the toilet 1 is washed. Here, the “first water level” is the lowest water level that is lower than the overflow water level L1 at which overflow starts from the trap portion of the toilet 1 and exhibits the sealing effect that the odor from the drainage pipe D does not enter. The water level is higher than the sealed water level L2. Further, after the seating sensor 5 detects the seating of the user (may be immediately after or after a certain period of time), the control unit 60 has a second water level in which the water level in the ball is higher than the first water level and lower than the overflow water level L1. The water supply by the rim water supply means is controlled so that According to the toilet device 100, when the urine is raised in the standing state or when the urine is taken immediately after sitting, the water level is lowered to lower the bounce or bounce height, and the seating sensor 5 detects the seating. The accumulated water level can be raised to prevent filth deposits during stool. Further, when the rim supply means supplies water, dirt is less likely to adhere to the ball.

  The operation unit 62 includes a large washing switch, a small washing switch, and a local switch. The large washing switch and the small washing switch are switches used for toilet cleaning at the time of stool and urination, respectively. The local switch is a switch used for local (butt washing and / or bidet washing). The rotational speed of the pump unit 50 corresponding to the large cleaning switch is set higher than the rotational speed of the pump unit 50 corresponding to the small cleaning switch.

  The memory 63 stores information for controlling a cleaning operation, which will be described later, and a cleaning method as software. The memory 63 holds a delay time (set time) T for the timer 64. The delay time (set time) T is used to delay the water supply of the rim water supply means until the time measured by the timer 64 after the seating sensor 5 detects the seating of the user reaches the delay time (set time). The

  The timer 64 functions as a time measuring unit that measures the time when the seating sensor 5 detects the seating of the user. Specifically, the timer 64 starts timing as soon as the seating sensor 5 detects the seating of the user, and is reset when the seating sensor 5 detects the seating of the user.

  The delay time setting unit 65 is a default to be held by the memory 63 for delaying the water supply of the rim water supply means until the time measured by the timer 64 reaches the set time after the seating sensor 5 detects the seating of the user. Initialize the setting time. The delay time setting unit 65 includes an input unit (a numeric keypad or an arrow key that increases or decreases a numerical value) and a display that displays a set time, but may be a touch panel. When the stool is continuously performed after the urination by the timer 64 and the delay time setting unit 65, the water level is lowered and the rebound height is lowered during the urination, and the water level is set before the stool after the set time. It can be made high to prevent adhesion of filth.

  The delay time changing unit 66 is configured to be able to change the set time or default set time set by the delay time setting unit 65. Thereby, in the urinal of the men's toilet in the office where the urinals are separately installed, the delay can be reduced to zero or individual settings can be made for each person. The delay time changing unit 66 includes an input unit (a numeric keypad or an arrow key for increasing / decreasing a numerical value) and a display for displaying a set time, but may be a touch panel, and is configured integrally with the delay time setting unit 65 in this embodiment. . The delay time changing unit 66 of the present embodiment can select female settings, male settings, and individual settings. When the female setting is selected, the delay time is 30 seconds which is the female setting time, and when the male setting is selected, the delay time is 5 seconds which is the male setting time. Further, when the individual setting is selected, the user can arbitrarily set the delay time. For example, there are some people who take a stool for a certain period of time after the first stool during a stool, but there are also people who are almost simultaneously or vice versa. Furthermore, the above-mentioned 30 seconds or 5 seconds may not always be required for a child's toilet in a kindergarten or an elderly toilet in a nursing home.

  Hereinafter, the stored water control of the present embodiment will be described with reference to FIG. FIG. 4 is a flowchart of the rim cleaning, toilet cleaning, and stored water supply operations in the embodiment in which the first water level is secured using the pump unit 50.

  First, the control unit 60 receives the operation of the toilet cleaning switch of the operation unit 62 by the user and starts the cleaning operation (step 1000). In response to this, the control unit 60 controls the water supply electromagnetic valve driving unit 32 to open the water supply electromagnetic valve 33 and also controls the flow path switching valve driving unit 34 to move the flow path switching valve 35 to the rim side. Switching (step 1002). Thereby, rim cleaning is performed.

  Specifically, tap water flows into the constant flow valve 31 from the water supply fitting 20, the branch fitting 21, the water inlet 22, and the flexible hose 24. The constant flow valve 31 restricts the flow rate of water when the water supply pressure is high, and allows the water flow rate to pass without being controlled when the water supply pressure is low. Thereafter, the water passes through the water supply electromagnetic valve 33 and the flow path switching valve 35, and is discharged from the rim port 18 through the vacuum breaker 36 and the rim water supply path 35b. The water discharged from the rim port 18 descends while turning the rim 13 in the ball 12 and cleans the inner wall surface of the ball 12. Rim cleaning continues for 5 seconds (step 1004).

  The rim cleaning is performed through the rim water supply path 35b not through the pump unit 50. Cleaning of the rim 13 of the ball 12 is sufficient even when the water pressure is weak, so that the water in the tank 40 need not be pressurized and discharged by the pump unit 50. Since the water in the tank 40 does not decrease, it is not necessary to supply water to the tank 40 after that, and it is possible to immediately shift to toilet cleaning and the subsequent supply of stored water. In addition, the rectified water discharge without air mixing is a low pressure loss cleaning, and the rim cleaning realizes quietness.

  When the rim cleaning is completed, the control unit 60 controls the water supply electromagnetic valve driving unit 32 to maintain the open state of the water supply electromagnetic valve 33, and controls the flow path switching valve driving unit 34 to set the flow path switching valve 35 in the tank. Switch to the side. Then, the control unit 60 starts water supply to the tank 40 at a flow rate of 8 liters / minute, and controls the pump motor driving unit 51 to control the pump motor 52 to perform toilet cleaning (step 1006).

  Specifically, the water stored in the tank 40 flows into the pump unit 50 through the flapper valve 45 and the water drain plug 46 and is pressurized. The water pressurized by the pump unit 50 is discharged from the jet port 16 through the washing water conduit 44b.

  The washing water discharged from the jet port 16 flows into the drain trap pipe 14 and fills the drain trap pipe 14 to cause a siphon phenomenon. As a result, the accumulated water and dirt in the ball 12 are sucked into the drain trap pipe 14 and discharged from the drain pipe D.

  In toilet bowl cleaning, the control unit controls the pump unit 50 at a high speed (about 3300 rpm) so that a large volume of water of 75 liters / minute is discharged from the jet port 16 at a low speed. As a result, the siphon phenomenon can be quickly generated and the accumulated water and filth can be quickly discharged. Moreover, since the siphon phenomenon occurs quickly, the amount of wasted water is reduced.

  Toilet cleaning is continued for 2.9 seconds (step 1008). You may reduce the rotation speed of the pump unit 50 in the latter half of this 2.9 second. The second half is a period in which water is supplied to suppress the amount of air sucked when the siphon is cut. In toilet cleaning, a large volume of water is supplied at a low speed, so that the noise when the siphon is cut off and the noise when pushing up the filth that floats are reduced to achieve quietness. The pump unit 50 is sealed so that there is no odor backflow from the drain pipe D by submerging the inlet of the drain trap pipe 14 by the extruded water that rotates several times due to inertia.

  The control unit 60 controls the pump motor driving unit 51 after the elapse of 2.9 seconds to stop the pump motor 52 and finish toilet cleaning (step 1010). However, the control unit 60 maintains the water supply to the tank. The control unit 60 supplies water to the tank 40 together with the start of toilet flushing, and can supply the stored water at an early stage. Water supply to the tank 40 continues for a further 5 seconds, for a total of 7.9 seconds (step 1012). Thereby, the water required for the stored water is stored in the tank 40.

  Next, the control unit 60 controls the pump motor driving unit 51 to drive the pump motor 52 and start the supply of accumulated water while maintaining the water supply to the tank 40 (step 1014). As described above, in this embodiment, water is supplied to the tank 40 simultaneously with the start of toilet cleaning, and the supplied water is used as stored water. The tank 40 is sufficient if it has a capacity for storing water necessary for toilet flushing, and it is not necessary to store water together with the stored water. Moreover, since the flow rate control of the stored water can be accurately performed by the pump unit 50, the generation of waste water can be prevented and water saving can be realized. In the present embodiment, the pump unit 50 used for the generation of the siphon phenomenon is also used for the stored water control so as to be multifunctional, so that it is not necessary to provide a new member such as a flow sensor. For this reason, the toilet device 100 can be reduced in size.

  In the water supply, the control unit controls the pump unit 50 to rotate at a low speed (about 1000 rpm) so that a low volume of water of 20 liters / minute is discharged from the jet port 16. In this way, the pump unit 50 has a lower flow rate (rotational speed) when supplying the stored water than when cleaning the toilet bowl. Thereby, it can prevent that a siphon phenomenon generate | occur | produces at the time of stored water supply, and can improve the precision of stored water amount control. Toilet cleaning is continued for 2 seconds (step 1016). However, the control unit 60 maintains the water supply to the tank 40.

  Next, the control unit 60 controls the pump motor driving unit 51 to stop the pump motor 52 and stop the supply of accumulated water (step 1018). In this manner, the control unit 60 controls the water supply of the zette water supply means including the flow path switching valve 35 and the pump unit 50 so that the water level in the ball 12 becomes the first water level immediately after the toilet 1 is washed. The “first water level” is a water level that is lower than the overflow water level L1 that starts overflowing from the trap portion of the toilet 1 and higher than the lowest sealed water level L2 that is the lowest water level at which odor from the drainage pipe D does not enter. .

  Water supply to the tank 40 is continued until the upper end float switch 41a detects full water (usually for 20 seconds) (step 1020). As a result, the tank 40 becomes full of water.

  Next, the control unit 60 controls the water supply electromagnetic valve driving unit 32 to close the water supply electromagnetic valve 33 to stop water supply (step 1022), and enters a standby state (step 1024).

  In step 1012, 5 seconds may be 2 seconds. As a result, the supply of the stored water is started before the tank 40 is filled with the water supply operation. As a result, the time during which no toilet water is stored in the toilet 1 can be shortened by supplying the stored water and supplying water to the tank 40 at the same time. As described above, the pump unit 50 may be driven not only after the water supply to the tank 40 but also during the water supply to supply the stored water.

  Hereinafter, with reference to FIG.5 and FIG.6, another stored water control of a present Example is demonstrated. FIG. 5 is a flowchart of an embodiment for securing the first water level by rim water supply, and FIG. 6 is a timing chart thereof.

  First, the control unit 60 determines whether or not the human body sensor 6 has detected a user (step 1102), and continues step 1102 until the human body sensor 6 detects a human body. In order to prevent erroneous detection due to noise, the control unit 60 determines that there is a user after a detection time of approximately one second has elapsed. When the controller 60 determines that the human body sensor 6 has detected a human body (step 1102), the controller 60 drives the flow path switching valve 35 to the rim opening side via the flow path switching valve drive section 34 (step 1104). Moreover, the control part 60 opens the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive part 32 (step 1106). Part A of FIG. 6 shows this state. The rim water supply is for the purpose of dropping the filth adhering to the dry surface of the ball 12 onto the water storage surface, so it may be as short as about 1 to 2 seconds, and is set to 1 second in FIG. In addition, since it is possible to perform rim water supply simultaneously with zet water supply into the ball by zet cleaning described later, the front rim water supply may be omitted.

  The controller 60 determines whether or not 1 second as the previous rim time has elapsed (step 1108), and continues step 1108 until 1 second has elapsed. When the controller 60 determines that the rim water supply time (front rim) has elapsed (step 1108), the controller 60 drives the pump motor 52 via the pump motor driver 51 (step 1110), and supplies the water in the tank 40 to the toilet 1. Water is supplied from the hazy mouth 16. As a result, the above siphon phenomenon is caused and the filth is discharged.

  Since the water supplied from the jet port 16 is the water stored in the tank 40, the rim water supply and the jet water supply using the water supply pressure can be performed almost simultaneously. Thus, the filth adhering to the inside of the ball 12 can be simultaneously pushed out to the drain pipe D while being washed down to the lower part of the toilet 1. Since the zette water supply time only needs to be equal to or greater than the water supply amount necessary for generating siphons, the present embodiment is set to 4.5 seconds. Part B of FIG. 6 shows this state.

  The control unit 60 determines whether 4.5 seconds as the jet water supply time has elapsed (step 1112), and continues step 1112 until the jet water supply time has elapsed. When the control unit 60 determines that the jet water supply time has elapsed (step 1112), the control unit 60 stops the pump unit 50 (step 1114). Since the water supply electromagnetic valve 33 remains open, only rim water supply continues (rear rim). Thereafter, the accumulated water is formed by the rear rim operation. The rear rim water supply time is a predetermined time until the accumulated water reaches the first water level, and is set to 4.3 seconds in this embodiment. Part C of FIG. 6 shows this state.

  The control unit 60 determines whether 4.3 seconds as the rear rim water supply time has elapsed (step 1116), and continues step 1116 until the rear rim water supply time has elapsed. When the control unit 60 determines that the rear rim water supply time has elapsed (step 1116), the control unit 60 moves the flow path switching valve 35 to the tank side for supplying water to the tank 40 via the flow path switching valve drive unit 34 ( Step 1118). Part D of FIG. 6 shows this state.

  Next, the control unit 60 determines whether or not the tank 40 is full of water via the upper end float switch 41a (Step 1120), and continues Step 1120 until the tank 40 is full of water. When the control unit 60 determines that the tank 40 is full (step 1120), the control unit 60 moves the flow path switching valve 35 to the standby position via the flow path switching valve drive unit 34 (step 1122). Moreover, the control part 60 closes the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive part 32 (step 1124). After the series of cleaning operations is completed, the ball 12 is at the first water level. Part E of FIG. 6 shows this state.

  Next, with reference to FIG.7 and FIG.8, the stored water raise operation | movement of a present Example is demonstrated. Here, FIG. 7 is a flowchart for explaining the stored water rising operation of the present embodiment, and FIG. 8 is a timing chart thereof.

  As shown in part A of FIG. 8, the inside of the ball 12 is maintained at the first water level. The control unit 60 determines whether the seating sensor 5 has detected the user's seating (step 1202), and continues the step 1202 until the seating sensor 5 detects the user's seating. When the seating sensor 5 detects the seating of the user (step 1202), the timer 64 starts counting the seating time (step 1204). The delay time (set time) T from the start of the seating of the timer is determined in advance assuming the time for the person to sit down and finish the urination, and is, for example, about 15 to 30 seconds. After this, by reversing from the first water level to the second water level, it is possible to avoid rebound at the time of small use due to the sitting position. However, as will be described later, the set time T may be set to substantially zero.

  The controller 60 determines whether the sitting time has become longer than the set time T (step 1206), and continues step 1206 until the sitting time becomes longer than the set time T. When the controller 60 determines that the seating time has become longer than the set time T (step 1206), the controller 60 drives the flow path switching valve 35 to the rim opening side via the flow path switching valve drive section 34 (step 1208). Here, as shown in part B of FIG. 8, the collision sound of air and water in the rim water supply path 35b is reduced by moving to the rim opening position over a predetermined time and gradually supplying water. Moreover, the control part 60 opens the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive part 32 (step 1210). Next, the control unit 60 determines whether or not 3 seconds, which is the previous rim time necessary for the second water level from the first water level, has elapsed (step 1212), and performs step 1212 until the previous rim time has elapsed. continue. When determining that the previous rim time has elapsed (step 1212), the control unit 60 closes the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive unit 32 (step 1214). Further, the controller 60 drives the flow path switching valve 35 to the standby position via the flow path switching valve drive section 34 (step 1216). The movement time of the flow path switching valve 35 at this time shown in part C of FIG. 8 may be arbitrary because the water supply electromagnetic valve 33 is already closed. As shown in part D of FIG. 8, if the second water level is set to the overflow water level, the maximum water storage area can be ensured in terms of performance, so that filth deposits on the toilet bowl surface can be prevented to the maximum.

  When the urination is performed by standing, the sitting time is not measured and the first water level is maintained, and in this case, the bounce at the time of use can be avoided.

  Alternatively, water supply may be started from the rim immediately after sitting with zero delay time. In this case, since the ball surface is wetted, it is difficult to adhere even if stool is made, which is effective in preventing the toilet 1 from being soiled. Alternatively, the amount of water supply can be reduced to increase the time for the second water level. By doing so, it is possible to prevent a small amount of rebounding for a longer period by gradually increasing the water level.

  The delay time may be set to zero, and the amount of water supply may be reduced to increase the time for reaching the second water level. What is necessary is just to complete over a delay time (for example, about 15 seconds to about 30 seconds) from the start of water supply until it reaches the second water level. If the time to reach the second water level is too early, the rebound at the time of small use will increase.

  FIG. 9 is a flowchart for explaining the delay time setting and changing operation. First, the control unit 60 determines whether there is a setting switching operation by the delay time changing unit 66 (step 1302). If it is determined that there is no setting change by the delay time changing unit 66, the control unit 60 sets the delay time T to the default setting value of 15 seconds (step 1304). Next, if it is determined that there is a setting change by the delay time changing unit 66 (step 1302), the control unit 60 determines whether or not a female setting is selected (step 1306). If it is determined that the female setting has been selected, the control unit 60 changes the delay time T from the default value to the female setting value (for example, 30 seconds) (step 1308). If it is determined that the female setting is not selected (step 1306), the control unit 60 determines whether the male setting is selected (step 1310). If it is determined that the male setting is selected, the control unit 60 changes the delay time T from the default value to the male setting value (for example, 5 seconds) (step 1312). If it is determined that the male setting is not selected (step 1310), the control unit 60 sets the delay time T from the default value to the individual setting value (step 1314).

  FIG. 10 is a block diagram of a toilet device 100A according to the second embodiment of the present invention. The toilet device 100 includes a toilet 1 and a cleaning unit that cleans the toilet 1, and performs zet water supply by direct water supply pressure. Therefore, the toilet device 100A does not have the tank 40. In FIG. 10, the same members as those in FIG.

  The flow path switching valve 35A is driven by the flow path switching valve drive unit 34 shown in FIG. 11, and in the case of water supply to the toilet bowl cleaning / reservoir supply system, the flow path switching valve 35A selects the flow path as the zette water supply path 35c, When water is supplied to the stored water supply system, a flow path is selected as the rim water supply path 35b.

  The configuration of the rim cleaning / pumped water supply system is the same as that shown in FIG. The toilet flushing / reserved water supply system performs toilet cleaning by generating a siphon phenomenon due to direct water pressure, and supplies the retained water from the jet port 16 of the toilet 1 using the same flow path. The toilet bowl cleaning / reserved water supply system includes a valve unit 30 and a jet opening 16. FIG. 11 is a block diagram of a control system of the toilet device 100A, and the same members as those in FIG. 3 are denoted by the same reference numerals.

  Hereinafter, with reference to FIG.12 and FIG.13, the stored water control of a present Example is demonstrated. FIG. 12 is a flowchart of an embodiment in which the first water level is secured by rim water supply, and FIG. 13 is a timing chart thereof.

  First, the control unit 60 determines whether or not the cleaning switch has been pressed (step 1402), and continues step 1402 until it is pressed. When the control unit 60 determines that the (large or small) cleaning switch of the operation unit 62 has been pressed (step 1402), the control unit 60 drives the flow path switching valve 35A to the rim opening side via the flow path switching valve drive unit 34 (step 1402). Step 1404). Moreover, the control part 60 opens the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive part 32 (step 1406). Part A of FIG. 13 shows this state. In addition, it is good also considering the detection of the user's separation by the seating sensor 5 as a trigger. The rim water supply (front rim) is set to 6 seconds in this embodiment in order to drop the filth adhering to the dry surface of the ball 12 onto the water storage surface. Part B of FIG. 13 shows this state.

  The control unit 60 determines whether or not 6 seconds as the previous rim time has elapsed (step 1408), and continues step 1408 until 6 seconds have elapsed. When the controller 60 determines that the rim water supply time (previous rim) has elapsed (step 1408), the controller 60 drives the flow path switching valve 35A to the Zet water supply path opening side via the flow path switching valve drive section 34 (step 1410). ). As a result, water is supplied to the toilet 1 from the jet 16 and a siphon phenomenon is caused to discharge filth. At this time, the rim water supply is not performed, and unlike the first embodiment, the rim water supply and the zet water supply cannot be performed at the same time except for the process in which the flow path switching valve 35A is moving. The control unit 60 determines whether 6 seconds as the jet water supply time has elapsed (step 1412), and continues step 1412 until the jet water supply time has elapsed. Since the jet water supply flow rate depends on the water pressure, the jet time is set to 6 seconds, which is a relatively long time, in consideration of poor cleaning when set at a low water pressure site. . Part C of FIG. 13 shows this state.

  If the control unit 60 determines that the jet water supply time has elapsed (step 1412), the control unit 60 moves the flow path switching valve 35A to the rim open position via the flow path switching valve drive section 34 (step 1414). Thereby, rear rim water supply is implemented. The rear rim water supply time is a predetermined time until the first water level is reached as in the first embodiment, and is, for example, 4.3 seconds. Part D of FIG. 13 shows this state.

  The control unit 60 determines whether 4.3 seconds as the rear rim water supply time has elapsed (step 1416), and continues step 1416 until the rear rim water supply time has elapsed. When determining that the rear rim water supply time has elapsed (step 1416), the control unit 60 closes the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive unit 32 (step 1418). After a series of cleaning operations are completed, the ball 12 is at the first water level. The E part of FIG. 13 shows this state.

  In this embodiment, the stored water level is lowered in preparation for the next entry after the end of the previous cleaning, but as a starting condition for the stored water lowering operation, the human body sensor 6, remote control operation not shown, and the lid 7 opening operation are triggered. It may be.

  Next, with reference to FIG.14 and FIG.15, the stored water raise operation | movement of a present Example is demonstrated. Here, FIG. 14 is a flowchart for explaining the stored water rising operation of this embodiment, and FIG. 15 is a timing chart thereof.

  As shown in part A of FIG. 15, the inside of the ball 12 is maintained at the first water level. The control unit 60 determines whether or not the seating sensor 5 has detected the user's seating (step 1502), and continues the step 1502 until the seating sensor 5 detects the seating of the user. When the seating sensor 5 detects the seating of the user (step 1502), the timer 64 starts counting the seating time (step 1504). The delay time (set time) T from the start of the seating of the timer is determined in advance assuming the time for the person to sit down and finish the urination, and is, for example, about 15 to 30 seconds. After this, by reversing from the first water level to the second water level, it is possible to avoid rebound at the time of small use due to the sitting position. However, as described above, the set time T may be substantially zero.

  The controller 60 determines whether the sitting time has become longer than the set time T (step 1506), and continues step 1206 until the sitting time becomes longer than the set time T. When the control unit 60 determines that the seating time is longer than the set time T (step 1506), the control unit 60 opens the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive unit 32 (step 1508). In this embodiment, since the flow path switching valve 35A is already in the rim open position, the movement time of the flow path switching valve 35A does not occur. That is, like the flow path switching valve 35 of the first embodiment, it is difficult to gradually open the flow path switching valve 35A and gradually increase the water level. Part B of FIG. 15 shows such a state.

  Next, the control unit 60 determines whether or not 3 seconds, which is the previous rim time necessary for the second water level from the first water level, has elapsed (step 1510), and performs step 1510 until the previous rim time has elapsed. continue. When determining that the previous rim time has elapsed (step 1510), the control unit 60 closes the water supply electromagnetic valve 33 via the water supply electromagnetic valve drive unit 32 (step 1512). FIG. 15C shows such a state. As shown in part D of FIG. 15, if the second water level is set to the overflow water level, the maximum water storage area can be ensured in terms of performance, so that filth adhesion to the toilet bowl surface can be prevented to the maximum.

  When the urination is performed by standing, the sitting time is not measured and the first water level is maintained, and in this case, the bounce at the time of use can be avoided.

  Alternatively, water supply may be started from the rim immediately after sitting with zero delay time. In this case, since the ball surface is wetted, it is difficult to adhere even if stool is made, which is effective in preventing the toilet 1 from being soiled. Alternatively, the amount of water supply can be reduced to increase the time for the second water level. By doing so, it is possible to prevent a small amount of rebounding for a longer period by gradually increasing the water level.

  The delay time may be set to zero, and the amount of water supply may be reduced to increase the time for reaching the second water level. What is necessary is just to complete over a delay time (for example, about 15 seconds to 30 seconds) from the start of water supply to the second water level. If the time to reach the second water level is too early, the rebound at the time of small use will increase.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

FIGS. 1A and 1B are a partially transparent side view and a side view of the toilet device according to the first embodiment of the present invention. It is a block diagram of the toilet device of Example 1 of this invention. It is a block diagram of the control system of the toilet device shown in FIG. It is a flowchart explaining the operation | movement of the rim washing | cleaning of the toilet device shown in FIG. 1, toilet bowl washing | cleaning, and stored water supply. It is a flowchart explaining the operation | movement of another rim washing | cleaning of the toilet device shown in FIG. 1, toilet bowl washing | cleaning, and stored water supply. 6 is a timing chart corresponding to the flowchart shown in FIG. 5. It is a flowchart for demonstrating the stored water raise operation | movement of Example 1. FIG. It is a timing chart corresponding to the flowchart shown in FIG. 6 is a flowchart for explaining a delay time setting and changing operation according to the first embodiment; It is a block diagram of the toilet device of Example 2 of this invention. It is a block diagram of the control system of the toilet device shown in FIG. It is a flowchart explaining operation | movement of the rim washing | cleaning of the toilet device shown in FIG. 10, toilet bowl washing | cleaning, and stored water supply. It is a timing chart corresponding to the flowchart shown in FIG. It is a flowchart for demonstrating the stored water raise operation | movement of Example 2. FIG. It is a timing chart corresponding to the flowchart shown in FIG.

Explanation of symbols

1 toilet 5 seating sensor (sitting detection means)
12 ball 16 jet port 18 rim port 50 pump unit 34 flow path switching valve drive unit 35 flow path switching valve 60 control unit 62 operation unit 63 memory 64 timer (time measuring means)
65 Delay time setting section (delay time setting means)
66 Delay time changing section (delay time changing means)
100, 100A toilet device

Claims (3)

A toilet, zet water supply means for supplying cleaning water into the ball from the toilet opening, rim water supply means for supplying cleaning water into the ball from the rim opening of the toilet, and seating of the user on the toilet A toilet device having a seating detection means for detecting,
Immediately after supplying the wash water into the bowl of the toilet bowl and washing, the water level in the bowl of the toilet bowl is lower than the overflow water level at which overflow starts from the trap portion of the toilet bowl, and the lowest level to obtain the sealing effect The water supply by the jet water supply means is controlled so that the first water level is higher than the lowest sealed water level, which is the water level, and the water level in the bowl of the toilet bowl is detected after the seating detection means detects the user's seating. A toilet apparatus, comprising: a control unit that controls water supply by the rim water supply means so as to be a second water level that is higher than one water level and lower than the overflow water level. Timing means for timing the time when the seating detection means detects the seating of the user;
A delay time setting means for setting the set time in order to delay the water supply of the rim water supply means until the time measured by the time measuring means reaches a set time after the seating detection means detects the seating of the user;
The toilet device according to claim 1, further comprising:   The toilet device according to claim 2, further comprising delay time changing means capable of changing the set time.