JPH10311078A - Human private parts washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a contaminant and extinguish various germs by installing a high temperature holding means for keeping higher temperature than the temperature of hot water used for washing human private parts over the prescribed time, for a water passage from a hot water tank to a washing nozzle. SOLUTION: When a washing nozzle 4 is made to enter a high temperature washing mode by a user or on the operation of a timer, with no human private parts washing process under way, a control circuit 5 prohibits the acceptance of a private parts washing operation, and causes a high temperature washing process to start. Also, the control circuit 5 starts carrying of current to a hot water heater 31, and raises the temperature of hot water in a hot water tank 3 to a level between 40 deg.C and 70 deg.C. Furthermore, the control circuit 5 changes over a water selector valve 10 and then prohibits the ingress of water from a water volume adjusting valve 2, thereby causing the hot water tank 3 to accept only water from a water passage having an orifice. Hot water at 70 deg.C is thereby made to flow to the downstream side of the hot water tank 3 at least over 10 minutes. According to this construction, a water passage from the hot water tank 3 to the washing nozzle 4 is kept at high temperature and a contaminant like salt can be removed. Also, various germs can be extinguished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning apparatus for cleaning a human body part.

[0002]

2. Description of the Related Art A human body part cleaning device is for cleaning a human body part with warm water after a stool or the like, and is a sanitary device in which the number of users is increasing rapidly with the improvement of living environment. The operation principle will be described with reference to FIG. 1. Cold water (tap water) is drawn into a human body local cleaning device by a water shutoff valve 1, and the cold water flows into a hot water tank 3 through a water amount adjustment valve 2. The hot water tank 3 has a hot water heater 31 for raising the temperature of cold water.
Further, a hot water thermistor 32 for monitoring the hot water temperature is held, and the control circuit 5 keeps the hot water temperature at an appropriate temperature. The hot water in the hot water tank 3 is discharged from the washing nozzle 4 toward the human body part to perform the human body part cleaning.

The operation of the human body part cleaning device shown in FIG. 1 will be described. When a user sits on the human body part cleaning device and instructs to start cleaning, a water shutoff valve 1 is opened and cold water is guided to a water amount adjusting valve 2. The water flow control valve 2 controls the water flow to 5
After adjusting the flow rate to be between 00 cc / min and 2000 cc / min, cold water flows into the hot water tank 3. The cold water flowing into the hot water tank 3 is supplied with appropriate temperature water to the washing nozzle 4 by extruding the appropriate temperature water of about 40 ° C. stored therein, thereby discharging water.

FIG. 2 shows a conventional example different from the above-mentioned human body local cleaning apparatus, which is greatly different from the apparatus shown in FIG. 1 in that a bypass water channel 8 is newly provided. The bypass water channel 8 branches off from the upstream side of the hot water tank 3 downstream of the water flow regulating valve 2 and joins with the hot / water mixing valve 6 downstream of the hot water tank 3 without passing through the hot water tank 3. High-temperature water (higher than appropriate-temperature water) in the tank 3 and cold water (normal-temperature water) supplied from the bypass water channel 8 are mixed by the hot-water mixing valve 6.

The operation of the apparatus for cleaning a human body part shown in FIG. 2 will be described. The control circuit 5 stores hot water at a temperature of 50 ° C. to 70 ° C., which is higher than the appropriate temperature water, in the hot water tank 3. When the user instructs the start of washing, the cold water flows into the water amount adjustment valve 2 via the water shutoff valve 1 and is adjusted to an appropriate water amount.
It is supplied to the hot water tank 3 and the bypass water channel 8. The cold water supplied to the hot water tank 3 pushes out the high temperature water in the hot water tank 3 and supplies the high temperature water to the hot / water mixing valve 6. In the hot and cold water mixing valve 6, high-temperature water and cold water are mixed, and the water is discharged from the washing nozzle 4 as appropriate-temperature water. The water discharge temperature sensor 7 monitors the temperature of the appropriate temperature water supplied to the washing nozzle 4 from the water / water mixing valve 6, and the control circuit 5 determines the mixing ratio of the water / water mixing valve 6 based on the information from the water discharge temperature sensor 7. Is changing.

[0006]

However, in the apparatus for cleaning a human body part shown in FIGS. 1 and 2 described above, since the cleaning nozzle 4 extends to the vicinity of the human body part at the time of cleaning the human body part, the cleaning nozzle 4 is easily soiled, and germs are easily propagated. There was a condition and there was a risk of becoming unsanitary. Further, the cleaning nozzle 4 is housed inside the human body part cleaning device when not in use, and is difficult to clean, and it is difficult to remove sticking dirt.

The present invention has been made in view of the above-mentioned problem, and even if dirt adheres to the cleaning nozzle 4, the dirt is cleaned with high-temperature water, and the dirt is removed along the path from the hot water tank 3 to the cleaning nozzle 4. It is an object of the present invention to provide a human body local cleaning device capable of killing germs that have propagated.

[0008]

SUMMARY OF THE INVENTION The present invention provides a cleaning nozzle for cleaning a human body part, cleaning water urging means for urging and supplying cleaning water to the cleaning nozzle, and a hot water heater for heating the cleaning water. A hot water tank that holds the hot water heater and stores cleaning water therein, and an operation unit that allows a user to select and operate a plurality of functions and that can determine an operation state by an indicator lamp, At least the washing nozzle,
In a human body local cleaning apparatus comprising a cleaning water urging means and a control circuit for controlling the operation of a hot water tank, a high temperature for maintaining a water path from the hot water tank to the cleaning nozzle at a temperature higher than the hot water used for local human body cleaning for a predetermined time. It is characterized by having holding means.

The present invention also provides a washing nozzle for washing a human body, washing water urging means for applying and supplying washing water to the washing nozzle, a hot water heater for heating the washing water,
A hot water tank that holds the hot water heater and stores cleaning water therein; a bypass water channel that branches upstream of the hot water tank and joins the cleaning water with a hot water mixing valve downstream of the hot water tank; Function, and an operation part capable of discriminating the operation state by an indicator lamp, and controlling at least the operation of the washing nozzle, the washing water urging means, the hot water tank and the hot water mixing valve. In the apparatus for cleaning a human body local part, the water mixing ratio of the hot water mixing valve is changed from that at the time of the local cleaning, and the ratio of hot water is increased so that the water channel from the hot water tank to the cleaning nozzle is cleaned locally. And a high-temperature holding means for holding the temperature at a higher temperature than the hot water used for a predetermined time.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The control circuit 5 used in the present invention can appropriately use a microcomputer. As shown in FIG. 6, the control circuit 5 includes a human body local cleaning mode management means 51 for performing a human body local cleaning, and a microcomputer. According to the control program of
The control of the human body local cleaning device is performed.

The high-temperature maintaining means of the present invention discharges high-temperature water, which is higher than the appropriate-temperature water, from the cleaning nozzle 4 for a predetermined time. The specific method is to raise the temperature of hot water stored in the hot-water tank 3. A hot water heater is provided on the downstream side of the hot water tank 3 to instantaneously raise the temperature of the cleaning water to discharge water. In a human body local cleaning apparatus using a hot water mixing valve, the mixing ratio of hot water is increased so that hot water increases. And other methods.

In the safety device according to the present invention, while the high-temperature holding means is operating, the control circuit 5 activates an operation prohibition mode for disabling the operation of the operation section, thereby disabling local cleaning. A method of discharging hot water while keeping the washing nozzle 4 in the housed state so that high-temperature water does not splash on the human body, and operation of high-temperature holding means for visually indicating to the user that the human body local cleaning device is currently operating the high-temperature holding means. A method of providing a display lamp on an operation unit is performed.

It should be noted that making the amount of washing water spouted from the washing nozzle 4 during operation of the high-temperature holding means smaller than that at the time of local washing is different from that at the time of washing when a hydraulically expandable nozzle is used. If high-temperature water is spouted with the same amount of water, the washing nozzle 4 will not be in the housed state, and if the user accidentally sits down, the high-temperature water may be spouted by the user. This is performed to make it possible to discharge high-temperature water for a long time even when the water is not used. Specifically, 500 cc / min.
The water discharged at 00 cc / min is reduced to about 100 cc / min, and the water may be narrowed down by the water amount adjusting valve 2, and the cold water is supplied to the hot water tank 3 through another water path provided with an orifice. May be.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 7 is a perspective view showing an appearance of a human body local cleaning apparatus according to the present invention, and a toilet seat and a toilet lid are installed on a main body,
The operation unit has a bottom cleaning switch 2 for starting local cleaning.
0, a stop switch 23 for stopping the local cleaning, a high-temperature nozzle cleaning switch 21 for cleaning and sterilizing the water path and the cleaning nozzle 4 with high-temperature water, and a high-temperature holding means operation display lit when the high-temperature nozzle cleaning switch 21 is operated. A lamp 22 is provided.

FIG. 3 is a diagram showing the principle of operation of the equipment built in the main body shown in FIG. 7, and the same parts as those described in the prior art are denoted by the same reference numerals. In the embodiment shown in FIG. 3, unlike the conventional example described with reference to FIG. 1, a channel for supplying cold water to the hot water tank 3 from the downstream of the water shut-off valve 1 via the orifice 11 without passing through the water amount adjusting valve 2. Is provided, and the water path can be switched by the water switching valve 10.

The operation in the case of performing the normal local cleaning will be described. When the user sits on the human body local cleaning apparatus and instructs the cleaning of the human body local part, the water shutoff valve 1 opens and the cold water is supplied into the apparatus. The supplied cold water is adjusted to have a water amount of 500 cc / min to 2000 cc / min by the water amount adjusting valve 2, and is supplied to the hot water tank 3 via the water switching valve 10. Inside the hot water tank 3, approximately 4
Approximately 1000 cc of hot water heated to 0 ° C. is stored, and when cold water is supplied, hot water is pushed out and discharged from the cleaning nozzle 4. The water discharge temperature sensor 7 monitors the temperature of the discharged hot water, and when hot water having a water temperature higher than a preset cleaning temperature passes, the water shutoff valve 1 is closed by the control circuit 5, and the discharge of the hot water is performed. It is to be canceled.

When the cleaning operation of the cleaning nozzle 4 is started in accordance with a user's instruction or a timer in a state where the human body local cleaning is not performed, a nozzle high temperature cleaning mode including a high temperature cleaning process, a cooling process, and a return process is started. You. When the nozzle high-temperature cleaning mode is started, the control circuit 5 turns on the high-temperature holding means operation display lamp 22 shown in FIG. 7, prohibits the user from receiving a human body local cleaning operation, and starts the high-temperature cleaning process. .

In the high-temperature cleaning process, energization of the hot water heater 31 is started, and the hot water stored in
The temperature is raised from 0 ° C. to 70 ° C., and the power supply to the hot water heater 31 is stopped. According to the information from the hot water thermistor 32,
When the control circuit 5 confirms that the temperature of the hot water in the hot water tank 3 is 70 ° C., the control circuit 5 switches the water switching valve 10 to prohibit the water from the water amount regulating valve 2 and to enter the orifice 11
The hot water tank 3 receives only the water from the water channel provided with. The water channel provided with the orifice 11 is provided with the orifice 11 so that the amount of water is 100 cc / min. Since the capacity of the hot water tank 3 is about 1000 cc, high-temperature water of 70 ° C. is supplied to the hot water tank 3 for at least 10 minutes.
It is possible to pass water downstream.

Generally, most of the dirt adhering to the washing nozzle 4 is formed by fixing water-soluble substances such as salts contained in urine. Becomes possible. Furthermore, bacteria such as Escherichia coli can be killed by passing hot water of 60 ° C. or more for 3 minutes or more, so that bacteria such as
Sufficient sterilization can be achieved by passing high-temperature water of at least ℃ for 10 minutes.

The control circuit 5 controls the high-temperature cleaning process by about 10
After running for a minute, the process transitions to the cooling process. In the cooling process, after the temperature in the hot water tank 3 is once increased to 70 ° C. in the high-temperature cleaning process, the hot water heater 31 is kept in a non-energized state. And the temperature of the water supplied from the hot water tank 3 to the washing nozzle 4 is gradually lowered, and the water channel from the hot water tank 3 to the washing nozzle 4 is cooled with time. The control circuit 5 monitors the temperature of the water discharged from the hot water tank 3 by the water discharge temperature sensor 7 in order to confirm that the water channel has been cooled to a safe temperature (a temperature at which the human body does not burn). After detecting that the temperature has dropped below 30 ° C,
Water supply is continued for another 30 seconds, and the water shutoff valve 1 is closed.

When the control circuit 5 closes the water shutoff valve 1, the process shifts to a return process. The control circuit 5 switches the water switching valve 10 to close the water passage having the orifice 11, and the water amount adjusting valve 2
The hot water tank 3 receives only the cold water from
After the temperature of the cold water in the hot water tank 3 is raised to a temperature of ° C., the high temperature holding means operation indicator lamp shown in FIG. 7 is turned off.

In the embodiment shown in FIG. 3, the washing nozzle of the hydraulic expansion and contraction type is used. However, the present invention can be applied to a human body local washing apparatus in which the washing nozzle 4 is expanded and contracted by a motor or the like. However, when high-temperature water is passed, it is only necessary to perform control for keeping the washing nozzle 4 in the housed state.

FIG. 4 shows another embodiment of the present invention.
Although the water channel having the orifice 11 is provided in this example, the water flow control valve 2 capable of adjusting the water flow in the range of 100 cc / min to 2000 cc / min is used here. However, a water drainage channel 12 is provided between the water shutoff valve 1 and the water amount adjustment valve 2, and by providing the water drainage channel 12, the dead water amount limit (500 cc / min or more) stipulated in the Water Supply Law is provided. It is possible to satisfy.

When the operation of the embodiment shown in FIG. 4 (after selecting the high-temperature cleaning mode) is described (the description of the operation of ordinary local cleaning is omitted), the control circuit 5 terminates the high-temperature cleaning mode for the cleaning nozzle 4. Until this time, the high temperature holding means operation display lamp 22 shown in FIG. 7 is turned on to prohibit the reception of the human body local cleaning operation. Next, the control circuit 5 sets the water flow control valve 2 to 10
With the opening limited to 0 cc / min, the water shutoff valve 1
Is opened, and the energization of the hot water heater 31 is controlled so that the temperature detected by the water discharge temperature sensor 7 becomes 70 ° C.

In the case of this embodiment, unlike the embodiment shown in FIG. 3, it is not necessary to set all the water in the hot water tank 3 to 70.degree.
Since it is sufficient that the temperature is 0 ° C., energy can be saved. This is achieved by the fact that the water heated by the hot water heater 31 is collected by convection in the upper portion of the hot water tank 3, which is the outlet of the hot water tank 3.

After flowing the high-temperature water for about 3 minutes, the control circuit 5 shifts to a cooling process. In the cooling process, the hot water heater 31 is de-energized, water is further supplied for 30 seconds after the temperature of the mixed water monitored by the water discharge temperature sensor 7 becomes 45 ° C. or less, and the water shutoff valve 1 is closed. Thereafter, in the return process, the opening of the water amount adjusting valve is returned to the opening for performing local cleaning, and the high temperature holding means operation indicator lamp shown in FIG. 7 is turned off.

FIG. 8 shows still another embodiment, in which a sub-heater 33 is attached to the embodiment shown in FIG. The installation position of the sub-heater 33 is on the downstream side of the hot water tank 3,
The temperature of the hot water in the hot water tank 3 is instantaneously increased from 40 ° C. to 70 ° C. by the sub-heater 33 to perform cleaning. After the cleaning is completed, the sub-heater 33 is turned off, and the high-temperature cleaning mode is completed through the cooling process and the returning process described in the embodiment of FIG.

FIG. 5 is different from the embodiment described with reference to FIGS. 3, 4 and 8 in that the present invention is applied to the hot and cold mixing type human body local cleaning apparatus described in the prior art of FIG. It is. The difference from the structure in FIG. 2 is that a water switching valve 13 is provided in the bypass water channel 8, and the drainage water channel 12 is connected to the water switching valve 13. The water switching valve 13 supplies the cold water distributed from the outlet of the water amount adjustment valve 2 according to an instruction of the control circuit 5,
The selection is made between supply from the bypass water channel 8 to the hot water mixing valve 6 and discharge from the drain water channel 12 to the inner surface of the toilet.

The operation principle of the embodiment shown in FIG. 5 will be described. The control circuit 5 turns on and off the hot water heater 31 in order to store hot water of about 70 ° C. in the hot water tank 3. If the user instructs to clean the human body,
In order for the control circuit 5 to supply cold water to the hot and cold water mixing valve 6,
After operating the water switching valve 13 so that the water amount adjustment valve 2 and the hot / cold water mixing valve 6 communicate with each other, the water shutoff valve 1 is opened to supply cold water into the main body. The cold water supplied to the inside of the main body is adjusted by the water amount adjusting valve 2 so as to have an appropriate amount of water, and the hot water tank 3
And the bypass water channel 8.

The cold water supplied to the hot water tank 3 is supplied to the hot / water mixing valve 6 in order to push out the high temperature water stored therein. On the other hand, bypass waterway 8
Is supplied to the hot and cold water mixing valve 6 to produce a mixed water of about 40 ° C. according to the hot and cold mixing ratio controlled by the control circuit 5.

When the user instructs the high-temperature cleaning of the cleaning nozzle 4, the control circuit 5 turns on the high-temperature holding means operation display lamp 22 for informing the user of the high-temperature cleaning mode, and then turns on the hot water mixing valve. In order to close the channel for supplying cold water to 6, the water switching valve 13 is operated so that the water amount adjusting valve 2 and the drainage channel 12 communicate with each other, and the water shutoff valve 1 is opened to take cold water into the main body. Cold water taken inside the main unit
After the flow rate is adjusted by the water amount adjusting valve 2 so as to have an appropriate amount of water, the water is distributed to the hot water tank 3 and the waste water channel 12. At this time, the control circuit 5 adjusts the opening degree of the hot / water mixing valve 6 so as to be smaller toward the high-temperature water side and more toward the cold water side, and the flow rate of the high-temperature water discharged from the hot water tank 3 is set to 100 cc / min. On the other hand, cold water that does not pass through the hot water tank 3 is discharged to the inner surface of the toilet via the water switching valve 13, so that the dead water amount according to the water supply method can be satisfied.

The high-temperature water guided to the hot-water mixing valve 6 is discharged from the washing nozzle 4 at the same temperature because the cold water from the water switching valve 13 all flows into the waste water channel 12 and is not mixed. The Rukoto. Since the amount of water supplied to the cleaning nozzle 4 is limited to 100 cc / min, it is not possible to obtain a sufficient water pressure to extend the cleaning nozzle 4. In addition, even if the user self-cleans the periphery and accidentally sits on the toilet seat, there is no concern that high-temperature water will splash on the human body.

The control circuit 5 continues the above-described high-temperature cleaning process for three minutes. Even during the continuation, when the temperature detected by the hot water thermistor 32 falls below a predetermined temperature (70 ° C.), the control circuit 5 starts energization and always supplies hot water. The temperature in the tank 3 is maintained at a predetermined temperature. When the high-temperature washing process is completed, the process shifts to a cooling process, in which the control circuit 5 operates the water switching valve 13 with the water shut-off valve 1 kept open, and supplies the cold water distributed from the water flow regulating valve 2 to the bypass water passage 8. At the same time, the opening of the hot water mixing valve 6 is adjusted so that the high temperature water side is fully closed and the cold water side is fully opened. As a result, the washing nozzle 4
Is cooled by cold water passing through the bypass waterway 8. The cooling time is appropriately set based on the information from the water discharge temperature sensor 7, but if the water is passed for about 30 seconds, the cooling is sufficiently completed.

When the cooling is completed and the cooling process is completed, the process shifts to the return process, and the control circuit 5
Is closed, the hot / water mixing valve 6 is returned to the standby position, the high temperature holding means operation display lamp is turned off, and the high temperature cleaning mode is ended.

FIG. 6 is an operation block diagram of the embodiment shown in FIG. First, the human body local cleaning mode management means 51 controls the operation of the human body local cleaning based on operation signals from the posterior cleaning switch 20 and the stop switch 23. High temperature nozzle cleaning mode management means 52
Controls the high-temperature cleaning mode described above by operating the high-temperature nozzle cleaning switch 21. Water amount adjustment valve driving means 53
Adjusts the opening of the water amount adjusting valve 2 according to the operation signal of the water amount setting switch 24. The water closing valve driving means 54 opens the water closing valve 1 when the human body local cleaning or the high-temperature nozzle cleaning mode is selected. The hot water temperature control means 55 sets the hot water temperature to 70 ° C. based on the hot water temperature signal of the hot water thermistor 32.
The energization and non-energization of the hot water heater 31 are controlled so that
The water switching valve driving means 56 causes the water switching valve 13 to communicate with the waste water channel 12 only while the high-temperature nozzle cleaning mode is selected and high-temperature water flows from the hot-water mixing valve 6 to the cleaning nozzle 4. ing.

Next, the flow of the operation will be described. When the user operates the posterior washing switch 20, the human body part washing mode management means 51 confirms the transmission of the operation acceptance prohibition signal from the high temperature nozzle washing mode management means 52, and if the operation acceptance prohibition signal is not sent, Only, it shifts to the buttocks washing operation mode. In the ass washing operation mode,
In order to prevent the high-temperature nozzle cleaning mode management means 52 from transiting to the high-temperature nozzle cleaning mode during the human body part cleaning operation, the high-temperature nozzle cleaning mode management means 52 sends a high-temperature nozzle cleaning operation acceptance inhibition signal to the high-temperature nozzle cleaning mode management means 52. Thereafter, the human body local cleaning mode management means 51 sends an operation signal to the mixed water temperature feedback control means 65 and the water closing valve driving means 54 to start / maintain the posterior washing operation. Upon receiving the operation signal, the water closing valve driving means 54 outputs a water closing valve energizing signal for opening the water closing valve 1, and the water closing valve 1 is opened. The mixed water temperature feedback control means 65 sends a mixing valve opening signal to the hot and cold water mixing valve driving means 66 so that the discharged water temperature becomes a predetermined temperature of about 40 ° C. based on the discharged water temperature detected by the discharged water temperature sensor 7. I do. Upon receiving the mixing valve opening signal, the hot water mixing valve driving means 66 confirms that no other mixing valve opening signal has been output, and then turns the hot water mixing valve 6 on as indicated by the mixing valve opening signal. The hot and cold water mixing valve 6 is driven so that As a result, in a state where the drainage water channel 12 is closed, about 40 ° C., 500 cc / min.
A human body cleaning operation at cc / min is started / maintained.

When the user operates the stop switch 23 in order to end the cleaning of the human body part, the human body part cleaning mode management means 51 transits to a standby state. Along with this,
The high temperature nozzle cleaning mode management unit 52 releases the operation acceptance prohibition signal of the high temperature nozzle cleaning operation, and the mixed water temperature feedback control unit 65 and the water closing valve driving unit 54 maintain the bottom cleaning operation. Release the operation signal. When the operation signal is released, the mixed water temperature feedback control means 65 and the water shutoff valve driving means 54 stop outputting the water shutoff valve energizing signal to the water shutoff valve 1 and the drive signal output to the hot water mixing valve 6, respectively. Therefore, the water shutoff valve 1 and the hot / cold water mixing valve 6 return to the standby state, and the human body local cleaning operation is stopped.

When the user operates the high-temperature nozzle cleaning switch 21, the high-temperature nozzle cleaning mode management means 52 first confirms the transmission of the operation acceptance prohibition signal from the human body local cleaning mode management means 51. Only when it is not transmitted, the mode is changed to the high-temperature nozzle cleaning mode, the high-temperature holding means operation indicator lamp 22 is turned on, and the human body local cleaning mode management means 51 is not shifted to the bottom cleaning operation mode during the high-temperature nozzle cleaning operation. In order to do so, an operation acceptance prohibition signal for the posterior washing operation is sent to the human body local washing mode management means 51.

Next, the high-temperature nozzle cleaning mode management means 52
Is a high temperature water discharge time measuring means 62 and a water closing valve driving means 5
4, an operation signal for starting / maintaining the high-temperature nozzle cleaning operation is transmitted. Upon receiving the operation signal, the water-closing valve driving means 54 outputs a water-closing valve energizing signal for opening the water-closing valve 1 and opens the water-closing valve 1. on the other hand,
After activating the internal timer, the high-temperature water discharge time measuring means 62 sends an operation signal for instructing the operation of the water switching valve 13 to the water switching valve driving means 56, and sends the operation signal to the high-temperature water inflow amount restricting means 63. In response, the operation signal of the high-temperature water spouting is transmitted.

Upon receiving the operation signal from the high-temperature water discharge time measuring means 62, the water switching valve driving means 56 sends a switching valve energizing signal to the water switching valve 13, and the water amount adjusting valve 2 and the drainage water passage 1
Let 2 communicate. The high-temperature water inflow limiting means 63
When the operation signal of the high-temperature water spouting is received, a mixing valve opening signal for setting the opening of the hot / water mixing valve 6 to 90% on the cold water side and 10% on the high-temperature water side is sent to the hot / water mixing valve driving means 66. The hot water mixing valve driving means 66 having received the signal confirms that no other mixing valve opening signal has been output, and then sets the hot water mixing valve 6 as indicated by the mixing valve opening signal. Hot water mixing valve 6
Drive. Thereby, 500 cc from the drainage water channel 12
The high-temperature water of about 70 ° C. inside the hot water tank 3 is discharged to the washing nozzle 4 at a water flow rate of 100 cc / min.

When the high-temperature water is discharged for three minutes, the internal timer of the high-temperature water discharge time measuring means 62 counts up, and a completion signal indicating that the nozzle high-temperature cleaning process is completed is sent to the cooling time measuring means 61 and the water channel. The signal is sent to the cooling time calculating means 60 and the operation signal to the water switching valve driving means 56 and the high-temperature water inflow limiting means 63 is released. As a result, the water switching valve driving means 56
3 is stopped, and the water amount adjusting valve 2 and the bypass water passage 8 are stopped.
And the high-temperature water inflow limiting means 63 stops the mixing valve opening signal of the hot water mixing valve 6 with respect to the hot water mixing valve driving means 66.

Upon receiving the completion signal indicating that the nozzle high-temperature cleaning process has been completed, the cooling time measuring means 61 activates the internal timer, and then indicates to the chilled water inflow fully opening means 64 that the cooling process has started. Sends an operation signal. The cold water inflow amount fully opening means 64 receiving the operation signal sends a mixing valve opening signal to the hot water mixing valve driving means 66 in which the opening of the hot water mixing valve 6 is fully opened to the water side. Upon receiving the mixing valve opening signal, the hot water mixing valve driving means 66 confirms that no other mixing valve opening signal has been output, and then sets the hot water mixing valve as indicated by the mixing valve opening signal. Thus, the hot / water mixing valve 6 is driven. Then, since the opening of the hot / water mixing valve 6 is fully opened to the water side in a state where the water drainage channel 12 is closed, the cold water is directly discharged from the washing nozzle 4.

In a state where the cold water is discharged, the cooling time measuring means 61 starts the cooling process by counting up the internal timer when the time given by the cooling time signal from the channel cooling time calculating means 60 elapses. The completion signal indicating completion is sent to the high-temperature nozzle cleaning mode management means 52.
And the operation signal to the cold water inflow amount fully opening means 64 is released. The cooling time measuring means 61 estimates the temperature of the cold water from the temperature of the water discharge temperature sensor 7 during the cooling process and passes the water after a predetermined time has passed after receiving the completion signal indicating that the nozzle high temperature cleaning process has been completed. Calculate the holding time of the cooling process according to the temperature of the cold water.

Upon receiving the completion signal indicating that the cooling process has been completed, the high-temperature nozzle cleaning mode management means 52 returns to the standby state, turns off the high-temperature holding means operation display lamp 22, and controls the human body local cleaning mode management means 51. On the other hand, the operation acceptance prohibition signal is released, and the operation to the water closing valve driving means 54 is stopped. As a result, the water shutoff valve 1 is closed, the hot and cold water mixing valve 6 returns to the standby state, and the human body local cleaning device is stopped. Thereafter, the hot water temperature, which has been reduced by consuming hot water in the nozzle high-temperature washing mode, is raised until the hot water temperature control means 55 reaches a predetermined temperature, and the return process is automatically completed. The control circuit 5 described above may be constituted by so-called discrete components, or may be realized by a program by a microcomputer.

[0045]

According to the present invention, it is possible to easily clean dirt and the like adhering to the cleaning nozzle, which has been difficult to clean in the past, and was liable to be unsanitary. It was also possible to sterilize the waterway leading to. In addition, by performing cleaning with a small amount of high-temperature water than the amount of water used for local cleaning of the human body, high-temperature cleaning can be performed while the cleaning nozzle is in a housed state, and there is no fear that high-temperature water is discharged to the human body. Long-time high-temperature cleaning is possible without increasing the capacity of the hot water tank and the hot water heater as compared with the conventional case.

Furthermore, it is possible to visually confirm that the user is performing the high-temperature cleaning while performing the high-temperature cleaning. Does not accept an input, it is possible to provide a safe human body local cleaning apparatus.

[Brief description of the drawings]

FIG. 1 is an operation principle diagram of a conventionally used apparatus for cleaning a human body part.

FIG. 2 is a diagram illustrating the operation principle of another conventionally used apparatus for cleaning a human body part;

FIG. 3 is an operation principle diagram showing an embodiment of the present invention.

FIG. 4 is another operation principle diagram showing the embodiment of the present invention.

FIG. 5 is another operation principle diagram showing the embodiment of the present invention.

FIG. 6 is a control block diagram according to the operation principle diagram shown in FIG. 5;

FIG. 7 is a perspective view of a human body local cleaning apparatus showing an embodiment of the present invention.

FIG. 8 is another operation principle diagram showing the embodiment of the present invention.

[Explanation of symbols]

1. Water shutoff valve 2. Water adjustment valve 3. Hot water tank 4.
Cleaning nozzle 5. Control circuit 6. Hot water mixing valve 7. 7. Water discharge temperature sensor 10. Bypass waterway Water switching valve 11. Orifice 12. Waste water channel 13. Water switching valve
20. Ass washing switch 21. High temperature nozzle cleaning switch 22. High temperature holding means operation indicator lamp 23. Stop switch 31. Hot water heater 32. Hot water thermistor 3
3. Sub heater

Claims (8)

[Claims] 1. A cleaning nozzle for cleaning a human body part, cleaning water urging means for urging and supplying cleaning water to the cleaning nozzle, a hot water heater for heating the cleaning water, and an inside holding and holding the hot water heater A hot water tank for storing washing water, an operation unit capable of allowing a user to select and operate a plurality of functions, and an operation state of which can be determined by an indicator lamp, and at least the washing nozzle and washing water And a control circuit for controlling the operation of the hot water tank.The high temperature holding means for holding the water passage from the hot water tank to the washing nozzle at a higher temperature than the hot water used for the human body local cleaning for a predetermined time. A human body local cleaning device, comprising: 2. The high-temperature holding means raises the temperature of the washing water in the hot water tank to a temperature higher than the temperature used for the human body, activates the washing water urging means, and supplies the high-temperature water from the washing nozzle to a predetermined temperature. 2. The apparatus for cleaning a local part of a human body according to claim 1, wherein the apparatus discharges water for a period of time. 3. The high-temperature holding means operates the cleaning water urging means to instantaneously heat the cleaning water by a hot water heater installed downstream of the hot water tank, and then discharges the cleaning water from the cleaning nozzle for a predetermined time. The apparatus for cleaning a local part of a human body according to claim 1, wherein: 4. A washing nozzle for washing a human body part, washing water energizing means for energizing and supplying washing water to the washing nozzle, a hot water heater for heating the washing water, and an inside holding and holding the hot water heater. A hot water tank that stores washing water in the water tank, a bypass water passage that branches at an upstream side of the hot water tank and joins the washing water with a hot water mixing valve at a downstream side of the hot water tank, and a user selects and operates a plurality of functions. And a control circuit for controlling the operation of at least the washing nozzle, washing water urging means, hot water tank and hot water mixing valve. In the local cleaning device, the hot water mixing ratio of the hot water mixing valve is changed from that at the time of the local cleaning, and the ratio of hot water is increased so that the water passage from the hot water tank to the cleaning nozzle is used for the human body local cleaning. An apparatus for cleaning a human body part, comprising a high-temperature holding means for holding a temperature higher than water for a predetermined time. 5. The human body local part according to claim 1, wherein the control circuit has an operation prohibition mode for disabling operation of the operation part during operation of the high temperature holding means. Cleaning equipment. 6. The human body local cleaning apparatus according to claim 1, wherein the control circuit holds the cleaning nozzle in a housed state during operation of the high temperature holding means. 7. The cleaning method according to claim 1, wherein the amount of the cleaning water discharged from the cleaning nozzle during operation of the high temperature holding means is smaller than that during the local cleaning. A human body local cleaning device as described in the above. 8. An operation unit is provided with a high-temperature holding means operation display lamp for displaying that the user has selected the high-temperature holding means, and the high-temperature holding means operation display lamp is turned on during the operation of the high-temperature holding means. Claims 1 and 2,
The human body local cleaning device according to 3, 4, 5, 6, or 7.