JPH08120734A - Sanitary washing device - Google Patents

Abstract

PURPOSE: To provide appropriate bodily sensation to the user at the start of use by causing the timing of starting driving a means for limiting the amount of wash water to be varied from that of starting driving an air mixing means at the start of washing so that the amount of flow of wash water varies in steps. CONSTITUTION: The timing of starting driving a means 18 for controlling the amount of wash water is made to vary from that of starting driving an air mixing means 25, by means of a delay driving circuit 34 at the start of washing. Immediately after washing has been started, either water or air is thereby allowed to flow into a washing nozzle 21 and ejected, and a gas-liquid two-phase flow of water and air is ejected thereafter; that is, the amount of flow supplied to wash water is varied in steps so that water is ejected smoothly at weak pressure at the start of washing and a set water pressure is attained a predetermined time thereafter. Therefore, water can be prevented from being ejected at strong pressure at the start of washing and making the user feel disagreeable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing device for washing a human body part after use, particularly in a washing device of a type in which air is forcibly mixed with washing water, in order to improve the user experience at the start and end of water discharge. The present invention relates to a water discharge control configuration capable of performing a suitable operation.

[0002]

2. Description of the Related Art A sanitary washing device for washing a human body part with warm water after use has been designed to spray washing water from a washing nozzle having a single or a plurality of nozzle holes provided at its tip to concentrate the local area. Although there is something to be washed, the jet flow at this time has a strong stimulating sensation due to the concentrated continuous flow, which may cause discomfort to the user. For this reason, in recent years, FIGS.
It has been proposed that a relatively soft feeling can be obtained by mixing air into the wash water as shown in FIG. In the figure, 1 is a solenoid valve, 2 is a water pump for supplying washing water, 3 is a hot water tank for heating the washing water, 4 is a washing nozzle, and the anus washing nozzle 5 for washing the anus and the female part A bidet cleaning nozzle 6 for cleaning is provided. Reference numeral 7 denotes a nozzle switching valve, which is configured so that the flow paths can be selectively switched as needed. Reference numeral 8 is an air pump that mixes air into the wash water, and the air is mixed through the check valve 9 from the upstream side of the nozzle switching valve. FIG. 8 shows the structure of the anus washing nozzle 5. Reference numeral 10 is a supply port for cleaning water, and a gas-liquid two-layer flow mixed with air is supplied into the nozzle cylinder 11. 1
Reference numeral 2 denotes a movable nozzle, which is pushed to the human body local position against the urging force of the elastic member 13 by receiving the water pressure of the cleaning water, and the washing water that has passed through the water supply passage 14 is directed from the nozzle hole 15 toward the human body local part. It is configured to be discharged.

In this structure, the cleaning water in which the air is forcedly mixed into the cleaning water by the air pump 8 is supplied to the supply port 10.
When flowing into the nozzle cylinder 11 through the water, the water pressure acts on the end surface of the movable nozzle 12 to push it out, and the cleaning water mixed with air is ejected from the nozzle hole 15 to clean the human body part. As a result, the feeling of irritation at the time of washing can be reduced, and the discomfort can be reduced.

[0004]

However, in the conventional sanitary washing device as described above, when the washing switch is turned on, the water pump and the air pump are simultaneously driven and controlled so as to have a preset water pressure. Immediately, the cleaning water of the set water level was discharged, and in spite of the fact that air was mixed in, the water might be discharged with an unexpectedly strong water force, which may cause discomfort to the user. .

Further, when the stop switch is turned on, the water pump and the air pump are stopped at the same time, so that at the end of cleaning, the cleaning water remaining in the cleaning nozzle is ejected from the nozzle hole, and the unnecessary portion gets wet. there were. That is, since air is a compressed fluid, when air is mixed in the wash water, the water pressure of the wash water causes the air to be compressed into bubbles of a predetermined diameter.
As a result, bubbles having an internal pressure corresponding to the washing water pressure pass through the washing nozzle, are discharged from the nozzle holes and collide with the human body part, causing the bubbles to bounce and a soft washing feeling can be obtained. When the air pump is stopped at the same time, the cleaning water in which water and air bubbles are mixed remains in the cleaning nozzle. At this time, the pressure of water becomes atmospheric pressure, so that the bubbles having a predetermined internal pressure expand, and the pressure in the cleaning nozzle temporarily rises. As a result, the residual water is discharged.

The present invention is intended to solve the above problems,
A first object of the present invention is to provide a sanitary washing device capable of suppressing the water pressure, which is an unpleasant factor at the start of washing, by appropriately supplying the washing water and the air, and providing a suitable feeling of use to the user. Has an aim.

A second object of the present invention is to provide a sanitary washing device in which the unpleasant water force at the initial stage of washing is effectively suppressed by delaying the mixing of air for a predetermined time at the start of washing, and the water force which is preferable for sensation is obtained. I am trying.

Further, by gradually increasing the amount of water from a low amount of water to a predetermined amount of water and then mixing air,
A third object is to provide a sanitary washing device capable of more effectively eliminating discomfort at the start of washing.

Further, by supplying only air at the start of cleaning and then gradually supplying the cleaning water from a low amount of water to a predetermined amount of water after a lapse of a predetermined time, the discomfort at the start of cleaning can be more effectively eliminated. A fourth object is to provide a sanitary washing device capable of performing the above.

Further, by stopping the supply of the cleaning water after the cleaning is finished by delaying the supply of the cleaning water by a predetermined time, it is possible to prevent the residual water in the cleaning nozzle from being temporarily jetted at the completion of the cleaning and to wet the unnecessary portion. A fifth object of the present invention is to provide a sanitary washing device which does not have such a sanitary washing device.

[0011]

In order to achieve the above first object, the sanitary washing device of the present invention comprises a washing water amount control means capable of adjusting the amount of washing water supplied, and the washing water to the portion to be washed. The cleaning nozzle has a cleaning nozzle for discharging toward the cleaning water, an air mixing unit for forcibly mixing air into the cleaning water, and a cleaning switch. The cleaning water amount control unit and the air mixing unit are driven immediately after the cleaning switch is selectively turned on. A delay drive circuit for driving by changing the start timing is provided.

In order to achieve the second object, the sanitary washing device of the present invention drives the washing water amount control means based on the turning on of the washing switch and drives the aeration means after a lapse of a predetermined time. Is provided.

In order to achieve the third object, in the sanitary washing device of the present invention, the washing water amount control means is driven by turning on the washing switch to gradually increase the water amount from a low water amount to a predetermined water amount. A circuit is provided, and after the initial water amount control operation is completed, the air mixing means is driven to mix air.

Further, in order to achieve the fourth object, the sanitary washing device of the present invention first drives the aeration means based on the turning on of the washing switch, and after a lapse of a predetermined time, drives the washing water amount control means and lowers the water amount. To a predetermined amount of water, a wash water delay circuit is provided to increase the amount of water stepwise.

In order to achieve the fifth object, the sanitary washing device of the present invention comprises a washing water amount control means, a washing nozzle,
Washing having an air mixing unit for forcibly mixing air into the cleaning water, a cleaning switch and a stop switch, stopping the air mixing unit based on turning on of the stop switch, and stopping the water amount control unit after a lapse of a predetermined time It is configured by providing a water stop delay circuit.

[0016]

Since the sanitary washing apparatus according to the present invention is provided with the delay drive circuit for changing the driving start timing of the washing water amount control means and the air mixing means at the start of washing, either water or air is washed immediately after the washing is started. The gas flows into the nozzle and is jetted, and then a gas-liquid two-layer flow of water and air is jetted. That is, the flow rate supplied to the cleaning water changes stepwise, starting from a soft weak water force at the start of cleaning, and then transitioning to the set water pressure. As a result, it is possible to prevent the user from unpleasantly ejecting water at the start of cleaning, and to prevent the user from feeling uncomfortable.

Further, since the sanitary washing device according to the present invention is provided with the air mixing delay circuit for delaying the driving of the air mixing means for the predetermined time with respect to the cleaning water amount control means at the start of cleaning, only the cleaning water immediately after the cleaning is started is the cleaning nozzle. To start cleaning with a weak water force, and after a lapse of a predetermined time, air is mixed and a predetermined water force is obtained. Therefore, it is possible to effectively suppress the unpleasant water pressure at the initial stage of washing. Further, since air is a compressed fluid, when the air mixing means is driven and mixed into the cleaning water, the discharge pressure from the cleaning nozzle does not rise sharply but gradually rises. Therefore, after the air is mixed, a feeling of washing in which the water force gradually rises is obtained, and the unpleasant water force at the initial stage of washing is alleviated.

Further, the sanitary washing apparatus according to the present invention is provided with an initial water amount control circuit for gradually increasing the amount of washing water from a low amount of water to a predetermined amount of water immediately after the start of washing, and after completion of the initial water amount control operation, the air mixing means is driven. Since the air is mixed in, the water force is gradually increased only by the cleaning water immediately after the start of cleaning, and then the air is mixed so that the water pressure is controlled to a predetermined water pressure. Therefore, the water force at the start of cleaning will be controlled more finely,
Discomfort can be resolved more effectively.

Further, in the sanitary washing apparatus according to the present invention, the air mixing means is driven at the initial stage of washing to supply only the air, the washing nozzle is advanced to the local position by the air pressure, and the washing water amount control means is operated after a predetermined time has elapsed. Since a wash water delay circuit that drives the water to gradually increase it from a low water amount to a predetermined water amount is provided, the gas-liquid two-layer flow of the wash water and air mixed after advancing the nozzle gradually changes from a low water force to a predetermined water force. Controlled to increase. Therefore, air is mixed to obtain a soft feeling, and the water force is gradually increased, so that discomfort at the start of washing can be more effectively eliminated.

Further, since the sanitary washing device according to the present invention is provided with the wash water stop delay circuit for stopping the aeration means upon turning on of the stop switch and stopping the water amount control means after a predetermined time has passed, the air is washed at the end of washing. The mixing of water is stopped and the bubbles are completely discharged from the cleaning nozzle, and then the cleaning water is stopped. As a result, the temporary ejection of cleaning water due to the expansion of the bubbles remaining in the cleaning nozzle is prevented, and the problem that the unnecessary portion gets wet can be solved.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a sanitary washing apparatus showing an embodiment of the present invention, in which 16 is a washing water supply passage, 17 is a closing valve, 18 is a washing water amount control means composed of a water pump,
Reference numeral 19 is a hot water tank for storing wash water heated to a predetermined temperature by the heater 20. Reference numeral 21 is a washing nozzle for ejecting washing water toward the human body local area, and has an anus washing nozzle 22 for washing the anus area after the toilet and a bidet washing nozzle 23 for washing the female area. The anus and bidet washing nozzles 22 and 23 are configured to be driven to move to the anus and female local positions by hydraulic pressure, and to discharge washing jets suitable for each washing.
Reference numeral 24 is a nozzle switching valve for selectively supplying washing water to the anus and bidet washing nozzles 22 and 23. In addition, reference numeral 25 is an air mixing means composed of an air pump, and the check valve 2
Air is forcibly mixed into the cleaning water supply path 16 via 6, and the gas-liquid two-layer flow is ejected from the cleaning nozzle 21.

27 is an anus and a fin cleaning nozzle 22, 2
3 is a washing switch for operating and has an anus washing switch 28 and a bidet washing switch 29 corresponding to each nozzle. 30 is a stop switch for stopping the cleaning operation. Reference numeral 31 is a water pump drive circuit for controlling the cleaning water amount control means 18, and 32 is an air pump drive circuit for controlling the aeration means 25. A water pressure adjusting switch 33 is operated by the user to control the water pump drive circuit 31 and the air pump drive circuit 32 to control the amount of washing water and the amount of air mixed in, and a plurality of water forces can be set according to preference. .

Numeral 34 is a cleaning water amount control means 1 at the beginning of cleaning.
8 is a delay drive circuit that drives the operation timing of the air mixing unit 25 and the air mixing unit 25 in different states, and the cleaning switch closing detection circuit 3 detects that the cleaning switch 27 is closed.
5 and an air-mixing delay circuit 36 that delays the drive of the air-mixing means 25 with respect to the drive of the washing water amount control means 18 by a predetermined time based on the input signal.

Further, 37 is a wash water stop delay circuit, which detects that the stop switch 30 has been selectively turned on at the end of washing by the stop switch closing detection circuit 38, and the aeration means 2
5 is stopped and the washing water amount control means 18 is stopped after a predetermined time.

Next, the operation of the present embodiment having the above-mentioned structure will be described.
The operation will be described. After the urination, by selectively turning on either the anus or the bidet washing switch 28, 29, the closing valve 17 is opened, the washing water amount control means 18 and the air mixing means 25 are operated, and the nozzle switching valve 24 is further operated.
Is selected to operate the anus or bidet cleaning nozzle 2
Cleaning water mixed with air is discharged from 2, 23. At this time, the fact that the washing switch 27 has been turned on is detected by the washing switch closing detection circuit 35, and the aeration delay circuit 36 operates based on this detection signal, and as shown in FIG. The aeration means 25 is driven with a delay of a predetermined time as indicated by ta with respect to the operation. As a result, as shown in FIG.
As for the flow rate of cleaning water discharged from, within the range of the delay time ta, only Qa of cleaning water is discharged, and after ta has elapsed, it is discharged as a predetermined gas-liquid mixed water Qb mixed with air. Therefore, when the cleaning is started, the water is not ejected with an unexpectedly strong water force, and the user does not feel uncomfortable. Further, since air is a compressed fluid, the discharge pressure of the cleaning nozzle 21 does not rise sharply but gradually rises when the air mixing means 25 is driven and mixed into the cleaning water. Therefore, after the air is mixed, a feeling of washing in which the water force gradually rises is obtained, and the unpleasant water force at the initial stage of washing is alleviated.

On the other hand, when the stop switch 30 after cleaning is selectively turned on, the cleaning water amount control means 18 and the air mixing means 25 stop operating, and the supply of cleaning water is stopped. At this time, the stop switch is turned on. It is detected by the stop switch closing detection circuit 38 that the wash water stop delay circuit 37 operates to stop the aeration unit 25, and the wash water amount control unit 18 is stopped after a predetermined time tb has elapsed. As a result, at the end of cleaning, air mixing is first stopped and the cleaning water is stopped after the bubbles are completely discharged from the cleaning nozzle 21, so that the expansion of the bubbles remaining in the cleaning nozzle 21 at the end of cleaning. It is possible to prevent the temporary discharge of the cleaning water. That is, since air is a compressed fluid, when air is mixed in the wash water, the air is compressed by the water pressure of the wash water to form bubbles having a predetermined internal pressure. When the washing water and the air are stopped at the same time in this state, the washing water in which the water and the bubbles are mixed remains in the washing nozzle 21, and the pressure of the water becomes the atmospheric pressure, so that the bubbles having a predetermined internal pressure are generated. It expands and temporarily increases the pressure in the cleaning nozzle. As a result, the residual water is temporarily discharged, and by stopping the aeration in advance, such a problem can be prevented.

As described above, according to this embodiment, only the cleaning water is first supplied at the initial stage of cleaning, and after a predetermined time has elapsed, air is mixed in to control the water pressure to a predetermined level. The discharge does not occur with an unexpectedly strong water force at the initial stage of cleaning, and the user does not feel uncomfortable.

Further, at the end of cleaning, the air is first stopped and the cleaning water is stopped after a predetermined time has passed. Therefore, at the end of cleaning, the temporary discharge of the cleaning water due to the expansion of the bubbles remaining in the cleaning nozzle 21. Is prevented and unnecessary parts do not get wet.

FIG. 3 is a block diagram of a sanitary washing device showing another embodiment of the present invention. In the figure, reference numeral 39 is the washing water amount control means 18 based on the closing signal of the cleaning switch closing detection circuit 35 which detects that the cleaning switch 27 has been closed.
Is an initial water amount control circuit for driving the washing water to gradually increase the washing water from a low water amount to a predetermined water amount.
6, the initial water amount control circuit 39 is operated, and then the air mixing unit 25 is operated to mix air. Others are the same as those of the sanitary washing device of FIG.

The operation and operation of this embodiment having the above structure will be described. After the urination, by selectively turning on either the anus or the bidet washing switch 28, 29, the closing valve 17 is opened and the washing water amount control means 18 is provided.
The air mixing means 25 is operated, and the nozzle switching valve 24 is operated to discharge the cleaning water containing air from the selected anus or bidet cleaning nozzles 22, 23.
At this time, the fact that the washing switch 27 has been turned on is detected by the washing switch closing detection circuit 35, and the initial water amount control circuit 39 is operated based on this detection signal to control the washing water amount control means 18, as shown in FIG. As shown, the water amount is gradually increased from a low water amount to a predetermined water amount within a predetermined time tc. Then, after the elapse of the predetermined time tc, the aeration unit 2
5 operates and is discharged as a predetermined gas-liquid mixed water Qb mixed with air.

In the present embodiment, immediately after the start of cleaning, the water force is gradually increased only by the cleaning water, and then air is mixed so that the water pressure is controlled to a predetermined water pressure. Therefore, the water force at the start of cleaning is controlled more finely, and the discomfort of discharging with an unexpectedly strong water force at the start of cleaning is more effectively eliminated.

FIG. 5 is a block diagram of a sanitary washing device showing still another embodiment of the present invention. In the figure, reference numeral 40 is cleaning water for delaying the driving of the cleaning water supply means 18 by a predetermined time with respect to the driving of the air supply means 25 based on a closing signal of a cleaning switch closing detection circuit 35 for detecting that the cleaning switch 27 is turned on. This is a delay circuit, and controls the wash water amount control means 18 so that the wash water amount is increased stepwise from a low water amount to a predetermined water amount after a lapse of a predetermined time. Others are the same as those of the sanitary washing device of FIG.

Next, the operation and operation of this embodiment having the above structure will be described. After the stool, by selectively turning on either the anus or the bidet washing switch 28, 29, the closing valve 17 is opened, the washing water amount control means 18 and the air mixing means 25 are operated, and the nozzle switching valve 24 is operated. The cleaning water mixed with air is discharged from the selected anus or bidet cleaning nozzles 22, 23. At this time, the fact that the washing switch 27 has been turned on is detected by the washing switch closing detection circuit 35, and the washing water delay circuit 40 operates, so that as shown in FIG. The cleaning water amount control means 18 is driven with a delay of td and a predetermined time t
After the elapse of d, the washing water amount control means 18 is controlled to increase the washing water amount stepwise from a low water amount to a predetermined water amount.

In this embodiment, the aeration means 25 is provided at the initial stage of cleaning.
Is driven to supply only air, the cleaning nozzle is driven to advance to a local position by this air pressure, and after a predetermined time td has elapsed, the cleaning water amount control means 18 is driven to gradually increase the water amount from a low water amount to a predetermined water amount. Since the cleaning water delay circuit 40 is provided, the gas-liquid two-layer flow in which the cleaning water and the air are mixed after advancing the nozzle is controlled so as to increase stepwise from a low water pressure to a predetermined water pressure. Therefore, air is mixed to obtain a soft feeling, and the water force is gradually increased, so that discomfort at the start of washing can be more effectively eliminated.

[0036]

As described above in detail, the sanitary washing apparatus of the present invention is provided with the delay drive circuit that makes the driving start timings of the washing water amount control means and the aeration means different at the start of washing. Either water or air flows into the washing nozzle and is ejected, and then a gas-liquid two-layer flow of water and air is ejected. Therefore, at the start of washing, the soft and weak water force starts, so that the wash water will not be ejected by an unexpectedly strong water force at the start of washing, and the user will not feel uncomfortable.

Further, since the sanitary washing device according to the present invention is provided with the air-mixing delay circuit for delaying the driving of the air-mixing means for the predetermined amount of time with respect to the washing water amount control means at the start of washing, only the washing water immediately after the washing is started is the washing nozzle. To start cleaning with a weak water force, and after a lapse of a predetermined time, air is mixed and a predetermined water force is obtained. This makes it possible to effectively suppress the unpleasant water pressure at the initial stage of washing. Further, since air is a compressed fluid, a feeling of washing in which the water force gradually rises when air is mixed can be obtained, so that the unpleasant water force in the initial stage of washing can be further alleviated.

Further, the sanitary washing device according to the present invention is provided with an initial water amount control circuit for gradually increasing the amount of washing water from a low water amount to a predetermined amount immediately after the start of washing, and after completion of the initial water amount control operation, the air mixing means is driven. Since the air is mixed in, the water force is gradually increased only by the cleaning water immediately after the start of cleaning, and then the air is mixed so that the water pressure is controlled to a predetermined value. Therefore, the water force at the start of washing can be controlled more finely, and the discomfort at the beginning of washing can be more effectively eliminated.

Further, in the sanitary washing apparatus according to the present invention, the air mixing means is driven at the initial stage of washing to supply only the air, the washing nozzle is advanced to the local position by the air pressure, and the washing water amount controlling means is operated after a predetermined time has elapsed. Since a wash water delay circuit that drives the water to gradually increase it from a low water amount to a predetermined water amount is provided, the gas-liquid two-layer flow of the wash water and air mixed after advancing the nozzle gradually changes from a low water force to a predetermined water force. Controlled to increase. Therefore, the air is mixed and a soft feeling is obtained, and the water force is gradually increased, so that the discomfort at the start of washing can be more effectively eliminated.

Further, since the sanitary washing device according to the present invention is provided with the wash water stop delay circuit for stopping the aeration means upon turning on the stop switch and stopping the water amount control means after a lapse of a predetermined time, the air is stopped at the end of washing. The mixing of water is stopped and the bubbles are completely discharged from the cleaning nozzle, then the cleaning water is stopped, and the temporary ejection of cleaning water due to the expansion of the bubbles remaining in the cleaning nozzle is prevented, and unnecessary parts are removed. The problem of getting wet can be solved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a sanitary washing device showing an embodiment of the present invention.

FIG. 2 is a time chart of the cleaning water amount control means and the aeration means.

FIG. 3 is a configuration diagram of a sanitary washing device showing another embodiment of the present invention.

FIG. 4 is a time chart of the cleaning water amount control means and the aeration means.

FIG. 5 is a configuration diagram of a sanitary washing device showing still another embodiment of the present invention.

FIG. 6 is a time chart of the cleaning water amount control means and the aeration means.

FIG. 7 is a block diagram of a conventional sanitary washing device.

FIG. 8 is a sectional view of the cleaning nozzle.

[Explanation of symbols]

 16 Cleaning Water Supply Channel 18 Cleaning Water Amount Control Means 21 Cleaning Nozzle 25 Air Mixing Means 27 Cleaning Switch 30 Stop Switch 34 Delay Drive Circuit 36 Air Inclusion Delay Circuit 37 Cleaning Water Stop Delay Circuit 39 Initial Water Volume Control Circuit 40 Cleaning Water Delay Circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Motoko Toyoshima 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A cleaning water supply passage, cleaning water amount control means capable of adjusting the supply amount of cleaning water, a cleaning nozzle for discharging the cleaning water toward a portion to be cleaned, and air for the cleaning water supply passage. An air mixing unit for forcibly mixing and discharging a gas-liquid two-layer flow from the cleaning nozzle, and a cleaning switch are provided, and the cleaning water amount control unit and the air mixing unit are driven immediately after the cleaning switch is selectively turned on. A sanitary washing device equipped with a delay drive circuit that drives at different start timings. 2. The sanitary washing apparatus according to claim 1, further comprising an aeration delay circuit for driving the washing water amount control means based on turning on of the washing switch and driving the aeration means after a lapse of a predetermined time. 3. An initial water amount control circuit for driving the washing water amount control means by turning on the washing switch to increase the water amount stepwise from a low water amount to a predetermined water amount, and an air mixing means is provided after the completion of the initial water amount control operation. The sanitary washing device according to claim 2, wherein the sanitary washing device is configured to be driven. 4. A wash water delay circuit for driving the aeration means based on turning on of the wash switch, driving the wash water amount control means after a lapse of a predetermined time, and gradually increasing the water amount from a low water amount to a predetermined water amount. The sanitary washing device according to claim 1. 5. A cleaning water supply passage, cleaning water amount control means capable of adjusting the supply amount of cleaning water, a cleaning nozzle for discharging the cleaning water toward a portion to be cleaned, and air for the cleaning water supply passage. An air mixing unit forcibly mixing and discharging a gas-liquid two-layer flow from the cleaning nozzle, a cleaning switch and a stop switch are provided, and the air mixing unit is stopped based on turning on of the stop switch, and after a predetermined time elapses. A sanitary washing device provided with a wash water stop delay circuit for stopping the water amount control means.