JPH01210531A - Flushing equipment for women's flush toilet - Google Patents

Abstract

PURPOSE:To prevent wasteful use of flushing water and to contrive water saving, by a method wherein a judgement is made, depending on the length of time from a body detection to the start of toilet paper consumption, to determine whether the flushing is for liquid wastes or solid wastes, and volume of the flushing is changed thereby. CONSTITUTION:A flushing equipment for women's flush toilet is formed with a body detector 20, a paper detector 22, which detects presence of consumption of toilet papers, a discharging device 23 and a discharging switch 24. The flushing a equipment is also provided with a judging circuit 38, which judges whether the paper consumption started within or after the fixed time that is fixed at a certain time after the body detection, and a control circuit 39, which gives instructions, with an output signal (e) from the judging circuit 38 and a signal (d) from the discharging switch 24, to a discharging device 23 indicating the volume of flowing either in large or small quantity. The flushing equipment, then, discharges flushing water in an appropriate volume based on a judgement whether the flushing is for liquid wastes or solid wastes, depending on whether the length of time from the body detection to the start of the paper consumption is within or out of the fixed time.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention reduces the amount of water used for onomatopoeic washing, which is used by women to muffle the sound of urination, and also determines whether it is urination or feces. This relates to a flushing device for women's toilets that saves water by changing the flow rate.

[Conventional technology]

Women usually relieve themselves by running water to muffle the sound of urination. After using toilet paper (hereinafter referred to as "paper"), it is common to flush the toilet paper one more time and perform at least two flushes. Therefore, there was a problem in that the amount of wasted washing water used increased.

In addition, some toilet bowl flushing mechanisms have two types, one for urination and one for feces, and flush a small amount of flushing water when urinating, and flush a large amount of flushing water when defecating. In this type of washing mechanism, even though the woman is only doing urination, she operates the control lever toward the urination side to flush a large amount of washing water, prolonging the time that the washing water is flowing, and urinating during that time. This also has the disadvantage of increasing the amount of wasted cleaning water used.

To solve the above problem, the amount of water discharged is determined based on the elapsed time from the time of entering the room to the time of operating the water discharge valve. A water-saving device for a women's flush toilet (Japanese Patent Application Laid-Open No. 60-233240) is known. This is as shown in FIG. This conventional device is
An electromagnetic water spouting valve 1 is opened by a signal from a water spouting switch 2, and discharge of cleaning water is started. Then, the output timing of the reset signal for closing the water spouting valve l is determined by the elapsed time t from the time of entering the room to the time of operating the water spouting switch 2.
It is determined by the length and shortness of .

The elapsed time t is measured by detecting the point in time when the door switch 3 enters the room, and by detecting the time from this point in time to the point in time when the water discharging switch 2 is operated.

The timer 4 then compares the elapsed time t with the set time T to determine whether the operation of the water discharging switch 2 is for washing for small use or for urination. The relationship between elapsed time t and set time T is t2:T
If so, it is determined that the cleaning is for feces, and outputs an "H" level signal to the gate 6 via the memory 5. " level, the memory 9 is reset via the OR element 8, and the water spouting valve l is closed.

Furthermore, if the relationship between the elapsed time t and the set time T is t<T, it is determined that cleaning is for a small purpose, and an H'' level signal is output to the gate 10. When the output signals from the timer 4 are both at the "H" level, the memory 9 is reset via the OR element 8, and the water discharge valve 1 is closed.

The float switches 7 and 11 are connected to floats 14 and 1 guided by pipes 12 and 13, as shown in FIG.
5, and reed switches 16 and 17 attached to the inner lower portions of the pipes 12 and 13. Therefore, when the relationship between the elapsed time t and the set time T is t≧T, the water discharge valve 1 is closed when the float switch 7 is activated, so the amount of cleaning water is L of the water level in the tank. It will be a minute. Further, when the relationship between the elapsed time t and the set time T is t<T, the amount of washing water used is 1 minute of the water level in the tank. In other words, if the elapsed time t from the time of entering the room until the water discharging switch 2 is operated is equal to or longer than the set time T, it is assumed that the flushing is for feces, and a large amount of flushing water is discharged. Furthermore, if the elapsed time t is shorter than the set time T, it is assumed that the cleaning is for small use, and the amount of cleaning water is reduced.

[Problem to be solved by the invention]

However, in the conventional device, the task is completed in a short time such that the relationship between the elapsed time t and the set time T is t<'1',
In the case of a woman leaving the toilet, even if a large flow rate of fecal flushing is desired, only a small flow rate of flushing is performed, resulting in the paper remaining in the toilet bowl. Furthermore, if the water discharging switch 2 is operated immediately after finishing a small errand, it is possible to flush a small amount of washing water. However, if you operate the water spouting switch 2 after a predetermined period of time has passed after finishing your errands, such as grooming yourself, the water will be flushed for feces even though it is for errands, resulting in wasted water. There was a drawback that the washing water flowed.

That is, in such a case, the original purpose could not be achieved.

[Means to solve the problem]

The present invention improves and eliminates the above-mentioned conventional problems, and focuses on the fact that women always use toilet paper when they run errands. To provide a flushing device for a women's toilet that saves water by determining whether to flush urine or feces based on the time it takes to use the toilet, and changing the amount of flushing water.

Therefore, the means of the present invention for solving the above problems are as follows:
A water discharge device that controls the supply of flush water to the toilet bowl, a water discharge switch that operates the water discharge device, a paper use detector that detects whether or not toilet paper is being used, and a human body that detects the presence or absence of a person using the toilet bowl. A detector, a judgment circuit that judges whether the paper is used before or after a set time after detecting a human body, and a small or large flow rate is sent to the water dispensing device based on the output signal of the judgment circuit and the signal of the water discharging switch. It consists of a control circuit that instructs water spray.

[For production]

If the use of toilet paper is within the set time after a human body is detected and the water discharge switch is operated after that time,
It is regarded as a wash for urination, and a small flow of wash water is discharged. Also, if the use of toilet paper is outside the set time after a human body is detected and the water discharging switch is operated after that, it is assumed that the flushing is for feces, and a large flow of flushing water is discharged.

This is based on the fact that women always use toilet paper when doing errands, and the time from detection of a human body to using toilet paper is extremely short; The time from detection of a human body to the use of toilet paper is relatively long, and by detecting this time, it is possible to accurately determine whether the toilet is being cleaned for urinary purposes, generating onomatopoeic sounds, or for feces. It focuses on one thing.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below based on embodiments shown in the drawings.

FIG. 1 is an electric circuit diagram according to an embodiment of the present invention, and FIG. 2 is a block diagram showing its basic configuration. As shown in the figure, the flushing device of this embodiment includes a human body detector 20 that detects a human body using a door switch, a photoelectric switch, a load switch, etc., and toilet paper (hereinafter simply referred to as paper). (See Figure 4) A paper use detector 22 that detects whether or not 21 is in use, a water discharge device 23 that supplies flushing water to the toilet bowl, a water discharge switch 24 that operates the water discharge device 23, and a large The controller 25 is configured to give an instruction to discharge cleaning water at either a high flow rate or a small flow rate.

Therefore, the water spraying device 23 in this embodiment has a single shot circuit 26 for feces which is set to output a "H" level signal for a long time, and a single shot circuit 26 for outputting an "H" level signal. Short time (OR for operating the electromagnetic or electric water discharge valve 28 in response to the set single shot circuit 27 for urination and the "H" level signal from either of these circuits 26 and 27) In other words, the water discharging device 23 of this embodiment is of a type that controls the supply of flush water to the toilet bowl in response to an electrical signal.

Further, the paper usage detector 22 is set to output a "H" level only when the paper 21 is pulled out at a predetermined speed or higher. The electric circuit is as shown in FIG. 5.The paper usage detector 22 shown in FIG. A magnet 33 is embedded in a part of the outer peripheral surface of the roller 32. A Hall element 30 is attached at a predetermined position with respect to the axis of the roller 32. Also, a paper usage detector shown in FIG. 22, the roller 32 is attached to the paper 2 using an elastic support rod 34.
It is in pressure contact with 1. The other basic configuration is the same as the paper use detector 22 shown in FIG.

When the paper 21 rotates due to use, the roller 32 rotates, and the magnet 33 embedded in a portion of its outer peripheral surface passes in front of the Hall element 30 multiple times. The Hall element 30 outputs changes in the magnetic field on the element surface as changes in voltage. Therefore, as shown in FIG. 5, by comparing the output voltage from the Hall element 30 with a constant voltage in the comparator 35, the output from the comparator 35 has a certain frequency depending on the drawing speed of the paper 21. It becomes a square wave. By frequency-voltage converting this rectangular wave by the F-V converter 36, the output of the converter 36 becomes a voltage output proportional to the frequency. By comparing this voltage output with a constant voltage by the comparator 37, the output from the paper usage detector 22 becomes "H" level only when the paper 21 is pulled out at a certain speed or higher.

Controller 2 that controls ON/OFF of water discharge valve 28
5 is a judgment circuit 38 that judges whether the paper 21 is used before or after a set time after detecting a human body, and this judgment circuit 3
8 and a signal d of the water discharging switch 24, the control circuit 39 instructs the water discharging device 23 to discharge water at a small flow rate or a large flow rate. The judgment circuit 38 uses a timer 40
and a latch circuit 41. The timer 40 counts a set time tl from the time when the output signal a from the human body detector 20 goes high and becomes a bell. In addition, the latch circuit 41 continues to output the "L" level when the output signal C from the paper use detector 22 becomes "H" level within the set time tl, and maintains the "L" level output continuously for the set time tl.
When the output signal C becomes the "H" level after l has elapsed, the "H" level is output. Also, the control circuit 3
9 consists of an AND element 43 and an AND element 44.

The AND element 43 outputs an "H" level signal to the urination single shot circuit 27 when both the inverted output signal of the latch circuit 41 and the signal d from the water discharging switch 24 are at the "H" level. On the other hand, the AND element 44 outputs an "H level signal" to the single shot circuit 23 for feces when both the output signal of the latch circuit 41 and the signal of the water discharging switch 24 are at "H" level.

Next, the operation mode of the water washing device configured as described above will be explained.

Assume now that a woman uses the toilet for errands.0 When a female user enters the toilet room or sits on the toilet seat, the human body detector 20, such as a photoelectric type or load type, detects this. do. Therefore, the output signal a becomes "H" level, and the latch circuit 41 receives this signal a and becomes ready for ON operation. Further, the timer 40 is configured such that the signal a is “H”.
A time count for a set time t1 is started from the time when the level is reached. When the user operates the water discharging switch 24 for onomatopoeic cleaning within the set time tl, a signal d is input to one end of the AND elements 43 and 44.
becomes “H” level. However, since these operations are within the set time tl, the signal e from the latch circuit 41 remains at the "L" level, and the input sides of the AND element 43, which inputs its inverted output, both become "H". ``It's a level. As a result, the signal g becomes "H" level, and the water spouting valve 28 is kept "open" for a short period of time set by the single shot circuit 27 via the OR element 29, thereby performing sound cleaning with a small flow rate.

When the user finishes urinating and uses the paper 21, the signal C from the paper use detector 22 becomes "H" level. Normally, the time from when a human body is detected by entering the toilet room until the user finishes urinating and uses the paper 21 is relatively short. In this embodiment, the set time t
! is set longer than the average time it takes to use the paper 21 after urinating. Therefore, even if the paper 21 is used after errands, the latch circuit 4
The signal e output from 1 remains at the "L" level. Therefore, in such a state, the water discharging switch 24
Even if it is operated, the AND element 43 will only output the "H" level as in the case of the onomatopoeic cleaning described above,
A small flow of cleaning water is discharged through the single shot circuit 27.

Furthermore, even if you finish urinating, use the paper 21, clean yourself, and operate the water discharging switch 24 after a predetermined period of time has elapsed (for example, after the elapse of time t1), the signal e output from the latch circuit 41 will be “L”. '' level is maintained, the AND element 43 still outputs the a H11 level, and only a small flow rate of cleaning is performed through the single shot circuit 27.

On the other hand, in the case of feces, the act of defecating is usually completed after the set time t1 has elapsed. Further, the set time tl needs to be set in consideration of these matters.

Then, using paper 21 and performing post-processing,
The paper use detector 22 detects this, and the signal C becomes “H”.
“It becomes a level.

The latch circuit 41 outputs an "H" level signal when the paper use detector 22 outputs an "H" level signal after the set time t1 has elapsed. In this state, when the water discharging switch 24 is operated, the AND element 4
Both of the input sides of 4 become "H level" and output "H level signal" to the single shot circuit 26. Therefore, OR
The water discharge valve 28 is connected to the single shot circuit 2 via the element 29.
It is "open" for the time set in step 6, and a large flow rate of cleaning is performed.

In this way, in the water washing device of this embodiment, the time from when a human body is detected to when the paper 21 is used is equal to the set time tl.
Determine whether it is within or exceeds this,
If it is within the set time tl, perform cleaning at a small flow rate,
Further, when the set time t1 is exceeded, cleaning is performed at a large flow rate. If the time from when a human body is detected to when paper 21 is used is short, it is either for small use or for onomatopoeic cleaning, or when paper 21 is used after detecting a human body. This is because if it takes a long time to clean, the cleaning is limited to feces. Therefore, the flushing device of this embodiment can accurately determine the type of use of the toilet bowl and determine the amount of flushing water accordingly, which is extremely effective in saving water.

By the way, the present invention is not limited to the above-mentioned embodiment (appropriate changes can be made. For example, the water spray device 2
3 has two water discharge systems, one for a small flow rate and one for a large flow rate, and in these two systems, a water discharge valve that allows a small flow rate to flow and a water discharge valve that allows a large flow rate to flow are arranged in parallel, and each water discharge system is controlled by AND elements 43 and 44. The valve may be controlled, and the water discharge may be started by an "H" level signal from the AND element 43 or 44, and float switches (water level sensors) 16 and 17 as shown in FIG. 7 may be installed in the water discharge system. In short, the water spraying device 23 may be of any type as long as it can be switched between a large flow rate and a small flow rate by an electrical signal.

〔Effect of the invention〕

As explained above, in the present invention, when a woman does errands, she must always use toilet paper7), and when she cleans herself after doing errands, she must do so after using toilet paper. Focusing on the fact that this is normal, if the time between detecting a human body and using toilet paper is within the set time, the subsequent operation of the water discharge switch is an operation for onomatopoeic flushing. Or, it is judged that the operation is for a small purpose, and a small flow of washing water is sprayed. In addition, if the time from detecting a human body to using toilet paper is after the set time has elapsed, the subsequent operation of the water dispensing switch will be determined to be for urination, and a large flow of water will be flushed. Water is being sprayed. Therefore, it is possible to accurately determine the manner in which the toilet is used and to discharge the amount of flushing water corresponding to the usage pattern, thereby eliminating wasted flushing water. In other words, it is possible to provide a flushing device for a women's toilet that is excellent in water conservation.

[Brief explanation of the drawing]

1 to 5 relate to one embodiment of the present invention, in which FIG. 1 is an electric circuit diagram, FIG. 2 is a block diagram thereof, and FIG. 3 is a block diagram thereof.
4 and 4 are schematic side views showing a paper use detector, FIG. 5 is an electric circuit diagram of the paper use detector, FIG. 6 is a block circuit diagram of a conventional water washing device, and FIG. 7 is a diagram of the same device. FIG. 2 is a schematic diagram showing a float switch. 23...Water discharge device 23...Water discharge switch 2
1... Toilet paper 22... Paper use detector 20... Human body detector 38... Judgment circuit 39.
...Control circuit patent applicant: Inax Co., Ltd. Agent: Toshihiko Uchida, patent attorney: Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7

Claims (1)

[Claims] 1. A water discharge device that controls the supply of flush water to the toilet bowl, a water discharge switch that operates the water discharge device, and a paper usage detector that detects whether or not toilet paper is being used;
A human body detector that detects the presence or absence of a person using the toilet, a judgment circuit that judges whether the paper was used before or after a set time after detecting a human body, and an output signal of the judgment circuit and a signal of the water discharge switch. A flushing device for a women's toilet, comprising a control circuit that instructs the water discharging device to discharge water at a small flow rate or a large flow rate.