JPH0380942B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a device for preventing erroneous operation of a toilet bowl with a private parts cleaning device that cleans the private parts after defecating with washing water at an appropriate temperature.

[Technical background of the invention]

In recent years, toilet bowls have been equipped with cleaning devices that spray out cleansing water at an appropriate temperature, allowing for hygienic post-treatment by washing the private parts with the cleansing water without having to bother with your hands after using the toilet. It has come to be used.

In general, this type of toilet bowl, for example,
As shown in the figure, a horizontally elongated control box 3 is attached to the rear of the toilet bowl 2, which has a toilet seat 1 on its top surface. A nozzle 6 is attached to the tip of the water supply pipe 4 so as to face into the toilet bowl 2, and a nozzle 6 is installed between the nozzle 6 and the solenoid valve 5. In this case, a heating device 7 having a built-in heater for heating the wash water and a temperature sensor is connected to a tube in a cylindrical case, and the internal heater 8 is connected to a power source 9 as shown in FIG. The temperature sensor detects the temperature of water discharged from the heating device 7 through a switching element 10, and sends a detection signal from the temperature sensor to a control device 11 that controls energization of the heater 8. The control device 11 that has received the detection signal sends out a gate signal to control the energization of the switching element 10, and controls the energization of the switching element 10 to keep the water flowing into the heating device 7 by the heater 8 at an appropriate temperature. The cleaning water is heated to a temperature of 100.degree. C., and the cleaning water is jetted from a nozzle 6 to clean the private parts. The temperature of the washing water is maintained at a constant temperature (approximately 38
℃). Further, on one side of the control box 3, an operation box 3a for accommodating the control device 11 is provided extending along the side of the toilet seat 1.
On the top surface of this operation box 3a, there is a button at a position suitable for the user to press and operate it when sitting on the toilet seat 1.
Alternate operation type operation switches (this is a switch that maintains the cleaning state when the push button is pressed) S ₁ , S ₂ , and S ₃ have "wash" and "wash" buttons on each push button.
They are arranged with the words "drying" and "toilet seat" displayed.

In FIG. 4, 12 is a power supply circuit, and this power supply circuit 12 includes a power transformer 14 connected to a connecting terminal 13, a diode bridge 15 having an AC input terminal connected to the secondary side of the transformer 14, and a diode bridge. It is composed of smoothing capacitors C ₁ and C ₂ connected in parallel to the DC output terminals of 15 and a voltage regulator AVR. Supplied as operating power.

Next, when using the cleaning device, after using the toilet,
When the push button of the operation switch _S1 labeled "Washing" is pressed, the solenoid valve 5 opens and when the tap water flows through the heating device 7 via the water supply pipe 4, the control device 11 turns on electricity. Washing water that is instantaneously heated by the controlled heater 8 and has an appropriate temperature is jetted from the nozzle 6 toward the private parts to wash the private parts. After cleaning, the operation switch _S1 is pressed again to close the solenoid valve 5 and stop the jetting of the cleaning water. Thereafter, the user presses the operation switch _S2 labeled "Dry" and uses a hot air dryer (not shown) to dry the private parts wetted by washing. After drying the local area, turn off the operation switch _S2 to stop the hot air dryer. Further, if necessary, the user may press the operation switch _S3 labeled "TOILET SEAT" to energize a heater (not shown) attached to the back of the toilet seat 1 to keep the toilet seat 1 warm.

[Problems with background technology]

However, in the above-mentioned conventional toilet bowl with a cleaning device, when jetting cleaning water from the nozzle 6,
This was done by opening the solenoid valve 5 by operating the operating switch _S1 . A solenoid valve control device 16 for opening and closing the solenoid valve 5 is constructed as shown in FIG. That is, a relay X and an operating switch S ₁ are connected between the constant voltage power supply Vcc supplied from the power supply circuit 12 and the ground.
are inserted in series, and a diode _D1 is inserted between the terminals of the relay
When S ₁ is pressed, relay X is energized and its normally open contacts
Xa was closed and solenoid valve 5 was opened. However, with the solenoid valve control device 16 having the above configuration, for example, after cleaning the toilet bowl 2 or after doing errands, the dirty water in the toilet bowl cannot be removed by operating the lever of the wash water storage tank (not shown). , if the user accidentally presses the operation switch S ₁ labeled "Flush" in the operation box 3a instead of letting the water in the tank flow down into the toilet bowl 2, or when the toilet bowl 2
If you unknowingly press the operation switch _S1 while cleaning the toilet, the solenoid valve 5 may open and the cleaning water may spray out from the nozzle 6, wetting your clothes or the floor of the toilet. Ta.

[Purpose of the invention]

The present invention eliminates the above-mentioned drawbacks and prevents washing water at an appropriate temperature from being sprayed from the nozzle even if the user operates the operating switch labeled "Washing" on the private parts washing device unless the user is seated on the toilet seat. Another object of the present invention is to provide a device for preventing erroneous operation of a toilet bowl with a private parts cleaning device, which prevents clothes etc. from getting wet due to erroneous operation of the operation switch.

[Summary of the invention]

In the present invention, a seating detection device is installed in one corner of the control box to detect when the user is sitting on the toilet seat. If no one is sitting on the toilet seat, even if you accidentally press the switch for flushing water,
The feature is that the cleaning water is prevented from spouting out.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to FIGS. 2 to 5. In addition, in Figures 2 to 5, the first
The same reference numerals as in the figures and FIG. 6 indicate the same parts.

In FIGS. 2 and 3, reference numerals 21 and 22 indicate operation boxes 3 extending from one side of the control box 3.
A light emitting element and a light receiving element attached to the inclined surface 3b1 of the corner part of the support part 3b (the position facing the user seated on the toilet seat 1) extend to the other side of the control box ₃ , facing the toilet seat 1. As shown in FIG. 2, the light emitting element 21 emits light with a certain degree of directivity toward the buttocks of the user A seated on the toilet seat 1, and the light receiving element 22 emits light toward the buttocks of the user A seated on the toilet seat 1. Use a condenser lens (not shown) that can reliably detect the light from the light emitting element 21 reflected from A, and the distance at which the light from the light emitting element 21 can be detected by entering the light receiving element 22 via the user. Therefore, in this embodiment, the distance is set to about 50 mm so that seating can be detected only when the user A is seated on the toilet seat 1. Then, the light emitting element 21 and the light receiving element 22
It is detected whether the user is seated on the toilet seat 1 or not by the detection means consisting of the following.

Next, the configuration of the electromagnetic valve control device 16a including the seating detection device will be explained with reference to FIG. The light emitting element 21 is supplied with a constant voltage power supply from the power supply circuit 12.
Connected in series with resistor _R1 between Vcc and ground,
The light receiving element 22 is also connected to a constant voltage power supply like the light emitting element 21.
A seating detection circuit Y is formed by inserting and connecting in series with a resistor R ₂ between Vcc and ground. Next, the base of the transistor Q ₁ is connected to the connection point between the light receiving element 22 and the resistor R ₂ , and the collector of this transistor Q ₁ is connected to the constant voltage power supply Vcc, and the emitter is connected through the resistor R ₃ . Ground. Next, the base of a transistor Q ₂ whose emitter is grounded is connected to the connection point between the emitter of the transistor Q 1 and _the resistor R ₃ .
The collector of this transistor Q ₂ and the constant voltage power supply Vcc
A switch circuit Z is formed by inserting and connecting an operating switch _S1 and a relay X in series between the two, and connecting a diode _D1 between the terminals of the relay
The seating detection circuit Y and the switch operation circuit Z constitute a solenoid valve control device 16a.

In the figure, reference numeral 17 denotes a toilet lid that is pivotally supported to the hinge portion 18 of the toilet seat 1 by a hinge rod 19 so that it can be opened and closed freely. It is pivoted at both ends so that it can be opened and closed. The light emitting element 21 and the light receiving element 22 are connected to the control box 3 so that the light emitted from the light emitting element 21 is not blocked by the corners of the toilet seat 1 when the toilet seat 1 is opened upwardly. Support part 3
b It is installed at the corner.

Next, the operation of the electromagnetic valve control device 16a having the above configuration will be explained.

The light emitting element 21 receives constant voltage power supply Vcc from the power supply circuit 12 and always emits light as long as the private part cleaning device is energized. And now, user A
When the user A sits on the toilet seat 1, the light emitted from the light emitting element 21 is reflected near the buttocks of the user A and enters the light receiving element 22, as shown by the arrow in FIG. At this time, the distance between the light receiving element 22 and the buttocks of user A is approximately
Since the distance is within 50 mm, the light emitted from the light emitting element 21 will surely reach the light receiving element 22.
The incident is detected. When light from the light-emitting element 21 is incident on the light-receiving element 22, the light-receiving element 22 is made conductive, and a current from the constant voltage power supply Vcc flows through the light-receiving element 22, turning on the transistor _Q1 . Then, by turning on the transistor Q ₁ , the current supplied from the light receiving element 22 is amplified, and this current is supplied from the connection point between the emitter of the transistor Q ₁ and the resistor R ₃ to the base of the transistor Q ₂ . Turn on transistor _Q2 . By turning on this transistor _Q2 , it is detected that the user is sitting on the toilet seat 1. Therefore, when user A presses the operating switch S1 labeled "Washing" after using the toilet, _the operating switch _S1 is turned on in FIG. 5, and the constant voltage power supply Vcc is switched from relay X to the operating switch.
It flows between S ₁ → collector → emitter → ground of transistor Q ₂ , energizes relay X, and closes its contact Xa. As a result, the solenoid valve 5 is opened, and washing water heated to an appropriate temperature by the temperature control of the control device 11 is jetted from the nozzle 6 to wash the user's private parts. To stop the jetting of cleaning water, the relay X is deenergized by pressing the operating switch _S1 again to turn off the operating switch _S1 . When the relay
Stop the flushing water. Then, when the user A stands up from the toilet seat 1, the light from the light emitting element 21 no longer enters the light receiving element 22, so the transistors _Q1 and _Q2 are turned off and seating detection is canceled.

Next, if user A accidentally turns on operation switch S ₁ while not sitting on toilet seat 1, light emitting element 2
Since the user is not sitting on the toilet seat 1 and the detection range of the light-receiving element 22 is extremely short, the light emitted from the light-emitting element 21 is scattered due to the absence of a reflective object and reaches the light-receiving element 22. Therefore, it cannot receive light. Therefore, since no base current flows through transistor _Q1 and no base current is supplied to transistor _Q2 , transistor _Q2 is not turned on. In this state, even if the operation switch S ₁ indicating "cleaning" is turned on, relay X is not energized because transistor Q ₂ is non-conductive,
Since the contact Xa remains open, the solenoid valve 5 is not opened. Therefore, there is no possibility that the cleaning water will be spouted from the nozzle 6, and it is possible to prevent the cleaning water from spouting out from the nozzle 6 by inadvertently turning on the operating switch _S1 .

〔Effect of the invention〕

As described above, when a user is seated on the toilet seat of a toilet with a private parts cleaning device, the present invention provides a system in which a pair of light-emitting elements and light-receiving elements are attached to the corner of a support extending on one side of a control box. A signal indicating the seating is detected by a detection means consisting of a resistor and connected to a seating detection circuit configured by inserting and connecting each of the light-emitting and light-receiving elements individually in series between a power supply circuit and ground. The signal is then output to a switch operation circuit comprising a transistor and an operation switch for opening and closing the electromagnetic valve. In this state, when the operation switch is turned on, the solenoid valve is opened, and washing water heated to the set temperature by the heating device is ejected from the nozzle to wash the private parts of the user sitting on the toilet seat. .

On the other hand, when the user leaves the toilet seat after washing his private parts, there is no reflective object on the toilet seat to reflect the light from the light emitting element, so the light from the light emitting element does not enter the light receiving element. Since the seating detection signal does not flow to the switch operation circuit, the electromagnetic valve is not opened even if the operation switch is operated, so the present invention has the following effects.

The present invention provides a means for detecting whether or not a user is seated on the toilet seat, which includes a light-emitting element and a light-receiving element, which is located close to the user on a support part extending on one side of the control box; In addition, since they are installed facing each other, the user sitting on the toilet seat and the detection means such as the light emitting element are brought close to each other at a very short distance, so the light from the light emitting element may be confused or interfere with other light sources. As a result, when the user is seated on the toilet seat, it is possible to reliably detect the user's sitting on the toilet seat.

In addition, as mentioned above, the detection means such as the light receiving element is installed at the closest position to the user when the user is sitting on the toilet seat, so when the user is sitting on the toilet seat, the detection means is installed in the position closest to the user. On the other hand, when a person is not seated on the toilet seat, for example, when cleaning the toilet bowl or raising the toilet seat to relieve themselves, the distance between the mounting position of the seating detection means and the human body is Since you will be much further away than when you are seated, even if the light emitting element is emitting light,
Since the light is not scattered and incident on the light receiving element, the seating detection signal from the seating detection circuit is not output to the switch operation circuit. That is, in the present invention, the solenoid valve is configured so that it does not operate even if the operating switch for the solenoid valve is operated unless the user is seated correctly on the toilet seat. Even if the operation switch is turned on by mistake, it is possible to reliably prevent a malfunction in which cleaning water is spouted from the nozzle of the cleaning device.

Furthermore, the switch operation circuit, which is constructed by combining a seating detection circuit equipped with a light emitting element and a light receiving element, a transistor connected to this circuit and turned on in response to a seating detection signal, and an operation switch, can be configured with a small number of parts. Since it is possible to design with a simple circuit configuration, as a result, the solenoid valve control device for preventing erroneous operation can not only be manufactured economically with a simple structure, but also requires special installation space in existing private parts cleaning devices. It can be easily installed without any hassle.

Furthermore, the detection means consisting of a light emitting and light receiving element can be installed at a position closest to the user when the user is seated on the toilet seat, by making effective use of a corner on one side of the control box. Therefore, when the user sits on the toilet seat, the human body and the detection means are maintained at a minimum distance that is optimal for detection of seating, so that it is possible to reliably detect that the user is sitting on the toilet seat. At the same time, the detection means is installed using the dead space on the control box side, so if the toilet seat is damaged by the impact force when it is opened or closed, or when the toilet seat is raised, the light from the light emitting element will illuminate the toilet seat. It is possible to reliably avoid problems such as seating detection being performed due to irradiation on a part of the seat.

In addition, in the present invention, as described above, the distance between the detection means such as a light emitting element and the human body is configured to be very narrow, so when cleaning private parts, seating cannot be detected unless the person is seated correctly on the toilet seat. However, this is because the detection function will not operate even if the operating switch is operated unless the user is seated correctly on the toilet seat, and as a result, the flushing water may be It also has the advantage of being able to reliably prevent erroneous operations such as sudden squirting and wetting clothes, etc.

[Brief explanation of drawings]

Fig. 1 is a side view of a toilet bowl equipped with a conventional private parts cleaning device, Fig. 2 is a plan view of a toilet bowl equipped with a private parts cleaning device equipped with the erroneous operation prevention device of the present invention, and Fig. 3 shows the main parts of the private parts cleaning device. FIG. 4 is an enlarged perspective view, and FIG. 4 is a schematic electrical circuit diagram of a private parts cleaning device equipped with the device of the present invention.
FIG. 5 is an electric circuit diagram of a solenoid valve control device constituting the apparatus of the present invention, and FIG. 6 is an electric circuit diagram of a conventional solenoid valve control device. 1... Toilet seat, 5... Solenoid valve, 6... Nozzle, 1
6a...Solenoid valve control device, 21...Light emitting element, 2
2...Photodetector, _Q1 , _Q2 ...Transistor, _S1
...Operation switch for opening and closing the solenoid valve, Y...Setting detection circuit, Z...Switch operation circuit.

Claims (1)

[Claims] 1. A solenoid valve 5 and a heating device 7 for heating flush water are installed in the middle of the water supply pipe 4 that connects the water supply source and the nozzle 6, and are housed inside a control box 3 that pivots to open and close the toilet seat 1. In a toilet bowl with a private parts washing device, the toilet is connected to a pipe, and when the electromagnetic valve 5 is opened, washing water heated to a predetermined temperature by a heating device 7 is ejected from a nozzle 6 to clean the private parts, A user A is seated on the toilet seat 1 at a corner of a support portion 3b extending to one side of the control box 3 which houses a solenoid valve 5 connected to the water supply pipe 4 and a heating device 7.
The light emitting element 21 and the light receiving element 22 are brought close to each other,
The light emitting element 21 and the light receiving element 22 are mounted facing the user A, and the light emitting element 21 and the light receiving element 22 are connected to the power supply circuit 12, respectively.
A seating detection circuit Y is configured by inserting and connecting in series between a constant voltage power supply Vcc supplied from a ground and a resistor, and a seating detection signal from the seating detection circuit Y is connected to the output end of the seating detection circuit Y. The operating switch S of the transistor and the solenoid valve 5 which becomes conductive when is outputted.
To prevent erroneous operation of a toilet bowl with a private parts cleaning device, characterized in that a switch operation circuit Z configured with the following is connected, and a solenoid valve 5 can be operated only when a seating detection signal is output to the switch operation circuit Z. Device.