TWI727570B - Sanitary washing device - Google Patents

Abstract

The invention provides a sanitary washing device. Equipped with a heat exchanger to heat the washing water, a washing nozzle, a foam generating part to generate washing foam, a spray nozzle to discharge washing foam to the inner surface of the toilet, a spray nozzle drive part to drive the spray nozzle, and a branch flow path to open and close The on-off valve and control unit. The control unit changes the output of the water discharge variable unit while rotating the dispersion nozzle drive unit forward and backward, and controls the direction of the dispersion nozzle's discharge port to span the inner circumference of the toilet and spread at least once back and forth. Wash off the foam. Thereby, a sanitary washing device can be provided that can form a foam film from the front to the back of the inner surface of the toilet to suppress the adhesion of dirt.

Description

Sanitary washing device Invention field

The present invention relates to a sanitary washing device for washing a part of the human body.

Background of the invention

Conventionally, in such a sanitary washing device, the washing nozzle protrudes from the storage position to the buttocks washing position or the vagina washing position. Then, the washing water is discharged from the discharge port of the washing nozzle. In this way, a structure that cleans the part of the human body is provided.

A sanitary cleaning device equipped with a cleaning nozzle that cleans the part of the human body in this case, and sprays foam on the inner surface of the toilet to form a foam film on the inner surface of the toilet before defecation. The sanitary cleaning device has been patented in Japan, for example. It is proposed in JP 2000-104319 A (hereinafter referred to as "Patent Document 1").

The sanitary washing device of Patent Document 1 automatically sprays foam from the spray nozzle when the detection unit detects the seating of a person. Thereby, a foam film is formed on the inner surface of the toilet before defecation to prevent the adhesion of dirt on the inner surface of the toilet.

However, for the inner surface of the toilet, the foam may not be sufficiently spread The delivered part, etc., may not be expected to have a sufficient effect as an anti-fouling countermeasure.

Summary of the invention

The present invention provides a sanitary washing device in which a foam film is formed on the inner surface from the front to the rear of the toilet to suppress the adhesion of dirt.

That is, the sanitary washing device of the present invention is provided with: a toilet seat that is freely lifted upside down on the toilet, a body that supports the toilet seat as a freely lifted upside down body, a heat exchanger that heats the washing water, and a washing nozzle for washing the human body , The foam generating part that generates cleansing foam, and the spray nozzle that spits clean water or cleansing foam to the inner surface of the toilet. Furthermore, it is provided with: a variable part of the discharge amount that can change the flow rate of the washing water sent to the dispersion nozzle, a dispersion nozzle drive part that rotates in the direction of the discharge port of the dispersion nozzle, and opens the water passage to the dispersion nozzle Closed on-off valve, control unit, and operation unit. In addition, the control unit controls the spray nozzle to spray the cleansing foam on areas with different heights on the inner surface of the toilet.

According to this structure, when the foam (hereinafter referred to as "washing foam") is dispersed from the spray nozzle to the toilet foam of the toilet, the control unit controls the spray nozzle to match the area with a high height position on the inner surface of the toilet. The multiple areas below it are scattered almost all around.

Thereby, a foam film is formed on the inner surface from the front to the rear of the toilet, and the adhesion of dirt is suppressed.

100‧‧‧Sanitary washing device

110‧‧‧Toilet

110a‧‧‧Edge

110b‧‧‧Draught surface

115‧‧‧Exhaust outlet

120‧‧‧Deodorizing device

130‧‧‧Control Department

200‧‧‧Ontology

201‧‧‧Rear body shell

210‧‧‧Operation Department

211‧‧‧Infrared receiver

220‧‧‧Operation switch

221、410‧‧‧Buttocks washing switch

222‧‧‧Nozzle sweep switch

230‧‧‧Setting switch

231‧‧‧Temperature switch for warm water

232‧‧‧Toilet temperature switch

233‧‧‧Turn off the 8 hour switch

234‧‧‧Power saving switch

235‧‧‧Automatic opening and closing switch of toilet lid

240‧‧‧Display lamp

300‧‧‧Toilet

320‧‧‧toilet cover

330‧‧‧Seat Sensor

331‧‧‧Toilet seat opening and closing sensor

360‧‧‧Toilet cover rotation mechanism

400‧‧‧Remote control

401‧‧‧Remote control body

402‧‧‧Transport Department

411‧‧‧Puddies Washing Switch

412‧‧‧Stop switch

413‧‧‧Mobile washing switch

414‧‧‧Rhythm wash switch

415‧‧‧Washing intensity switch

416‧‧‧Washing position switch

417‧‧‧Spread switch

418‧‧‧Toilet Lid Switch

419‧‧‧Toilet switch

421‧‧‧LED intensity indicator light

422‧‧‧Position indicator

450‧‧‧Human body detection sensor

500‧‧‧Cleaning Department

501‧‧‧Underframe

501a‧‧‧Water Pump Setting Department

501b‧‧‧Foot

502、802‧‧‧Connecting pipe

510‧‧‧Water supply connection port

511‧‧‧Filter

512, 531‧‧‧Check valve

513‧‧‧Constant flow valve

514‧‧‧Water stop solenoid valve

515‧‧‧Relief valve

516‧‧‧Water pump (variable discharge volume)

516a‧‧‧Motor Department

516b‧‧‧Link mechanism department

516c‧‧‧Piston

516d‧‧‧Water suction port

516e‧‧‧Spit

517‧‧‧Fluid regulating valve

517a‧‧‧Valve body

517b‧‧‧Stepping motor

517c‧‧‧Water inlet

530‧‧‧Branch flow path

530a‧‧‧On-off valve

532‧‧‧Foam Box

533‧‧‧Lotion box

534‧‧‧Lotion pump

535‧‧‧Air pump

550‧‧‧Dispersing nozzle

550a‧‧‧Spreading nozzle drive

550b‧‧‧Inlet flow path

550c‧‧‧Main body

550d‧‧‧Rotating nozzle

550e, 550f‧‧‧O-ring

550h‧‧‧Entrance hole

550n‧‧‧Shaft

550u‧‧‧Exit

560‧‧‧Foam Generation Department

600‧‧‧Auxiliary water tank

601、711‧‧‧Water inlet

602‧‧‧Water outlet

603, 613‧‧‧Atmospheric opening

610‧‧‧Box body

611‧‧‧Front Box

612‧‧‧rear box

613a‧‧‧Buffer

613b‧‧‧Flow Path

614‧‧‧Separating Wall

615‧‧‧Into the sink

615a‧‧‧Upper opening

616‧‧‧Storage slot

617‧‧‧Barrier Wall

618‧‧‧Rectifying ribs

620‧‧‧Water level detection sensor

621‧‧‧Common electrode

622‧‧‧Water level electrode

623‧‧‧Limiting electrode

624‧‧‧Lower limit electrode

630‧‧‧Water temperature sensor

690‧‧‧Washing water supply flow path

700‧‧‧Heat exchanger

701‧‧‧Shell

702‧‧‧Plate heater

703‧‧‧Hot water discharge component

710‧‧‧Front member

712‧‧‧Hot water outlet

713‧‧‧Inlet flow path

714‧‧‧Slit

715‧‧‧Heating flow path

716‧‧‧Separating rib

717‧‧‧Water hole

718‧‧‧Protrusion

720‧‧‧Back component

730‧‧‧Hot water discharge temperature sensor

731‧‧‧Overheating sensor

750‧‧‧Buffer box

800‧‧‧Nozzle device

801‧‧‧Nozzle cover

810‧‧‧Support

811‧‧‧Bottom

812‧‧‧inclined part

813‧‧‧Longitudinal

814‧‧‧Guide

815‧‧‧Rack guide

816‧‧‧Holding Department

817‧‧‧Water supply connector

820‧‧‧Nozzle

830‧‧‧Nozzle body

831‧‧‧Buttocks washing nozzle

832‧‧‧Puddies Washing Nozzle

833‧‧‧Nozzle Cleaning Department

834‧‧‧Buttocks washing spray outlet

835‧‧‧Buttocks washing channel

835a‧‧‧rectifier plate

836‧‧‧Pussial cleansing spray outlet

837‧‧‧Pin washing channel

838‧‧‧Nozzle cleaning nozzle

839‧‧‧Nozzle cleaning flow path

840‧‧‧Nozzle cover

841‧‧‧Nozzle cover body

842‧‧‧Connecting member

843‧‧‧Connecting film

843a‧‧‧Connecting protrusion

844‧‧‧Ejection opening

845‧‧‧Drain outlet

850‧‧‧Connecting part

851‧‧‧Connecting receiving part

851a‧‧‧Front depression

851b‧‧‧Back depression

860‧‧‧Washing nozzle drive

861‧‧‧Flexible rack

862‧‧‧pinion gear

863‧‧‧Drive motor

P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13, P14, P20

TF, TR‧‧‧Scattering movement trajectory

Figure 1 is the sanitary washing device in the embodiment of the present invention has been installed A three-dimensional view of the state in which it is placed in the toilet.

Fig. 2 is a perspective view of the state in which the front main body of the sanitary washing device is removed.

Fig. 3 is a perspective view of the state in which the front main body and the control part of the sanitary washing device are removed.

Fig. 4 is a perspective view showing the upper surface of the operating part of the sanitary washing device.

Fig. 5 is a perspective view showing the appearance of the remote control.

Fig. 6 is a schematic diagram showing the structure of the water circuit of the washing part of the sanitary washing device.

Fig. 7 is a perspective view showing the disassembled state of the water circuit of the sanitary washing device.

Fig. 8 is a perspective view showing the combined state of the water circuit of the sanitary washing device.

Fig. 9 is a perspective view showing the appearance of the auxiliary water tank of the water circuit.

Fig. 10 is a front sectional view of the auxiliary water tank.

Fig. 11 is a side sectional view of the auxiliary water tank.

Fig. 12 is a perspective view showing the appearance of the heat exchanger of the water circuit.

Fig. 13 is a cross-sectional view of the heat exchanger.

Fig. 14 is a perspective view showing the appearance of the water pump of the water circuit.

Fig. 15 is a cross-sectional view of the water pump.

Fig. 16 is a perspective view showing the external appearance of the nozzle device of the sanitary washing device in a stored state.

Fig. 17 is a cross-sectional view of the line 17-17 shown in Fig. 16.

Fig. 18 is a longitudinal sectional view of the stored state of the nozzle device.

Fig. 19 is a detailed cross-sectional view of part B shown in Fig. 18.

Fig. 20 is a cross-sectional view of the line 20-20 shown in Fig. 19.

Fig. 21 is a cross-sectional view of the stored state of the nozzle device.

Fig. 22 is a detailed cross-sectional view of part C shown in Fig. 21.

Fig. 23 is a longitudinal sectional view showing the buttocks washing state of the nozzle device.

FIG. 24 is a detailed cross-sectional view of part D shown in FIG. 23. FIG.

Fig. 25 is a longitudinal cross-sectional view showing the washing state of the vagina of the nozzle device.

Fig. 26 is a detailed cross-sectional view of part E shown in Fig. 25;

Fig. 27 is a cross-sectional view showing the washing state of the vagina of the nozzle device.

FIG. 28 is a detailed cross-sectional view of part F shown in FIG. 27. FIG.

Fig. 29 is a timing chart of the washing part at the initial use of the sanitary washing device.

Fig. 30 is a time chart of the washing part in the normal use of the sanitary washing device.

Fig. 31 is a perspective view showing the appearance of the spray nozzle of the sanitary washing device.

Fig. 32 is a longitudinal sectional view of the dispersion nozzle.

Fig. 33 is a plan view showing the installation position of the dispersion nozzle and the rotation angle of the discharge port of the dispersion nozzle in the sanitary washing device.

Fig. 34 is a graph showing the pump output in the rotation angle of the discharge port of the dispersion nozzle.

Fig. 35A is a graph showing the pump output during the discharge operation on the inner surface of the toilet bowl of the dispersion nozzle.

Fig. 35B is an explanatory diagram showing the discharge operation of the dispersion nozzle toward the inner surface of the toilet.

Fig. 36A is a graph showing the pump output during the discharge operation on the inner surface of the toilet bowl of the dispersion nozzle.

Fig. 36B is an explanatory diagram showing the discharge operation of the dispersion nozzle toward the inner surface of the toilet.

The form used to implement the invention

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the present invention is not limited by this embodiment.

(The form of implementation)

<1>The overall composition of the sanitary washing device

Hereinafter, the overall configuration of the sanitary washing device in this embodiment will be described with reference to Figs. 1 to 5.

Fig. 1 is a perspective view of a state in which a sanitary washing device in an embodiment of the present invention has been installed on a toilet. Fig. 2 is a perspective view of a state in which the front body shell of the main body of the sanitary washing device is removed. Fig. 3 is a perspective view of a state in which the front main body and the control part of the main body of the sanitary washing device are removed. Fig. 4 is a perspective view showing the upper surface of the operating part of the sanitary washing device. Fig. 5 is a perspective view showing the appearance of the remote control.

As shown in FIG. 1, the sanitary washing device 100 of the present embodiment is composed of at least a main body 200, a toilet seat 300, a toilet cover 320, a remote control 400, a human body detection sensor 450, and the like as main components. The main body 200, the toilet seat 300 and the toilet cover 320 are formed in an integrated manner and are arranged on the upper surface of the toilet 110.

Furthermore, in the following content, the installation side of the main body 200 of the sanitary washing device 100 is set to the rear, the installation side of the toilet seat 300 is set to the front, and the right side facing the front is set to the right, and the front facing The left side is set to the left to illustrate the arrangement of each component.

The operating portion 210 protrudes from the right side of the main body 200 and is integrally provided. The toilet seat and toilet cover rotation mechanism 360 is arranged on the front side of the main body 200, and drives the toilet seat 300 and the toilet cover 320 to open and close freely. Furthermore, the toilet seat cover rotation mechanism 360 is composed of, for example, a DC motor and a plurality of gears, and the toilet seat 300 and the toilet cover 320 are opened and closed individually or simultaneously.

Moreover, as shown in FIG. 1, when the toilet cover 320 is opened, the toilet cover 320 will stand up to be located at the rearmost position of the sanitary washing device 100. On the other hand, when the toilet cover 320 is closed, the toilet cover 320 will cover the upper surface of the toilet seat 300.

The toilet cover 320 is constructed by molding a resin material such as PP (polypropylene) or ABS (acrylonitrile-butadiene-styrene), and is provided with a double-layer structure and heat insulating material. Insulated structure.

The toilet seat 300 is provided with a toilet seat heater (not shown) for heating the seating surface. The toilet seat heater is used to heat the seat surface of the toilet seat 300 to a comfortable temperature.

In addition, the seating sensor 330 is a bearing part disposed in the main body 200 supporting the rotating shaft of the toilet seat 300, and constitutes a seating detection unit for detecting a human body seated on the toilet seat 300. The seat sensor 330 is composed of, for example, a weight sensor, and uses the weight change formed by the user sitting on the toilet seat 300 to turn the switch on and off. In this way, the seating sensor 330 detects whether a user is seated on the seating surface of the toilet seat 300.

In addition, as shown in FIGS. 2 and 3, the inside of the main body 200 includes: a sub-tank 600, a heat exchanger 700, a washing unit 500 equipped with a nozzle device 800, a spray nozzle 550, a deodorizing device 120, a control unit 130, etc. . The nozzle device 800 has, for example, a buttocks washing nozzle 831 as a washing nozzle for washing a part of the human body. The dispersing nozzle 550 disperses washing water or washing foam on the inner surface of the toilet. The deodorizing device 120 eliminates the odor during defecation. The control unit 130 controls the functions of the sanitary washing device 100. In addition, in the following, the buttocks washing nozzle 831 may be described as an example of the washing nozzle.

The nozzle device 800, which is the main component of the washing unit 500, is installed in the central part of the inside of the main body 200. On the right side of the nozzle device 800 and also on the front of the body 200 fixedly mounted on the toilet 110, a spreading nozzle 550 is provided. A deodorizing device 120 is provided on the left side of the nozzle device 800. A toilet seat and toilet cover rotation mechanism 360 that opens and closes the toilet seat 300 and the toilet cover 320 is provided on the left side of the nozzle device 800.

On the right side of the nozzle device 800, a water stop solenoid valve 514, a relief valve (relief valve) 515, a sub-tank 600 and the like of the washing part 500 are further arranged in the front. A heat exchanger 700 is provided behind the nozzle device 800. A water pump 516 constituting a variable part of the spouting water is provided behind the heat exchanger 700. The control unit 130 is provided above the washing unit 500.

In addition, as shown in FIG. 4, the operating unit 210 is provided with a plurality of switches and indicator lamps 240 for operating and setting various functions of the sanitary washing device 100. An operation board (not shown) is provided inside the operation portion 210. A plurality of tact switches and a plurality of LEDs (light emitting diodes) (not shown) are arranged on the operating substrate. Moreover, through the switch attached to the upper surface of the operating part 210 The nameplate makes it possible to press the touch switch and the visual recognition of the LED.

In addition, the operation unit 210 includes an infrared receiver 211 behind the upper surface. The infrared receiver 211 receives the infrared signal transmitted by the remote controller 400 and the human body detection sensor 450 shown in FIG. 1.

The switches of the operation unit 210 are composed of a plurality of operation switches 220 for operating a washing operation, a plurality of setting switches 230 for setting various functions, and the like. In addition, the display lamp 240 is composed of a plurality of LEDs, and displays the setting status of the main body 200.

The operation switch 220 of the operation unit 210 is composed of, for example, a buttocks washing switch 221 and a nozzle cleaning switch 222. The buttocks washing switch 221 is used as an aid when the battery of the remote controller 400 is dead or malfunctions. The nozzle cleaning switch 222 is operated to clean the nozzles when cleaning the nozzles.

The setting switch 230 of the operating unit 210 is composed of, for example, a warm water temperature switch 231, a toilet seat temperature switch 232, an 8-hour off switch 233, a power saving switch 234, and an automatic toilet lid opening and closing switch 235.

Each switch is operated by the user's pressing to perform the actions shown below.

The warm water temperature switch 231 is used to set the temperature of the washing water. The toilet seat temperature switch 232 is used to set the temperature of the toilet seat 300. After turning off the 8-hour switch 233, after setting, the heat preservation of the toilet seat 300 will be stopped and the heat preservation of the toilet seat 300 will be restarted after 8 hours. The power saving switch 234 automatically learns the time zone when the sanitary washing device 100 is not in use, and reduces the heat preservation temperature of the toilet seat 300 during the time zone when the sanitary washing device 100 is not in use to save electricity. The automatic opening and closing switch of the toilet lid 235 is used to set the toilet Automatic opening and closing action of the seat 300 and the toilet cover 320.

Furthermore, most of the operations of the sanitary washing device 100 are performed by a remote controller 400 that is a different individual from the main body 200 and is configured separately. Therefore, the remote controller 400 is installed on the wall of a toilet that is easy for the user sitting on the toilet seat 300 to operate.

As shown in FIG. 5, the overall shape of the remote controller 400 is formed by a thin rectangular parallelepiped. The remote controller 400 is provided with a plurality of switches and indicator lights on the upper surface and front of a box-shaped remote controller body 401 formed of a resin material such as PP (polypropylene) or ABS. Near the upper corner of the remote control main body 401 is arranged a transmission part 402 which transmits the operation signal of the remote control 400 to the main body 200 by infrared rays.

The remote control body 401 contains a control board (not shown) that constitutes the control function of the remote control 400, a battery (not shown) that is a power source of the remote control 400, and the like.

For example, a buttocks washing switch 410, a vagina washing switch 411, a stop switch 412, a mobile washing switch 413, and a rhythm washing switch 414 are arranged in the central part of the front surface of the remote controller main body 401.

With the user's pressing operation, each switch will perform the following actions.

The buttocks washing switch 410 will start the buttocks washing. The pudendal washing switch 411 will start the pudendal washing of the partial washing of women. The stop switch 412 stops the buttocks washing and the genitals washing. Moving the washing switch 413 periodically moves the washing position back and forth during the buttocks washing and the vagina washing, so that a wide range of washing can be performed. Rhythm wash switch 414 will wash on the buttocks At this time, the washing intensity is periodically changed to perform washing.

The remote controller main body 401 is provided with, for example, a washing intensity switch 415, a washing position switch 416, and a spreading switch 417 on the front surface of the remote control body 401. The washing intensity switch 415 is two switches to adjust the washing intensity of the buttocks washing and the genitals washing. The washing position switch 416 is two switches to adjust the washing position during buttocks washing and genital washing. The dispersing switch 417 discharges washing water or washing foam from the dispersing nozzle 550 and disperses it on the inner surface of the toilet or the surface of the washing nozzle.

Above the washing intensity switch 415 is arranged an LED intensity indicator lamp 421 that displays the washing intensity in, for example, five stages. In addition, above the washing position switch 416 is arranged a position indicator lamp 422 that displays the washing position in, for example, five stages.

The upper surface of the remote controller body 401 is provided with a toilet lid switch 418 for electrically opening and closing the toilet lid 320 and a toilet seat switch 419 for electrically opening and closing the toilet seat 300. Furthermore, it is configured that the user can arbitrarily open the toilet seat 300 and the toilet lid 320 by operating the switches. Here, the open state of the toilet seat 300 refers to a state in which the toilet seat 300 is erected approximately vertical (including vertical) like when a man urinates. On the other hand, the closed state of the toilet seat 300 means that the toilet seat 300 is approximately parallel to the upper frame surface of the toilet 110 (including parallel). Furthermore, the open state or the closed state of the toilet seat 300 can be detected by a signal from the toilet seat opening and closing sensor 331 as a toilet seat opening and closing detection unit.

In addition, the human body detection sensor 450 shown in FIG. 1 is made up of an individual different from the main body 200, and is installed on the wall of a toilet, for example. people The body detection sensor 450 is composed of, for example, a thermoelectric sensor, a sensor control unit, an infrared transmission unit, and a battery as a power source of the body detection sensor 450, which are not shown in the figure. The thermal sensor will receive the infrared rays emitted by the human body. The sensor control unit detects the human body with the signal of the thermal inductance sensor. The infrared transmission part transmits the human body detection signal from the sensor control part to the control part of the main body 200 by infrared rays.

As described above, the sanitary washing device 100 of this embodiment can be constructed.

<2>The water circuit composition of the sanitary washing device

Hereinafter, the structure of the water circuit of the sanitary washing device of the present embodiment will be described with reference to FIG. 6.

Fig. 6 is a schematic diagram showing the structure of the water circuit of the sanitary washing device.

Furthermore, the washing part 500 shown in FIG. 6 is built into the main body 200 for washing a part of the user.

As shown in FIG. 6, the washing unit 500 constituting the water circuit is composed of a nozzle device 800 that sprays at least washing water, and a washing water supply stream that supplies washing water to the nozzle device 800 from a water supply connection port 510. Road 690 and so on.

The washing water supply flow path 690 is provided with a water supply connection port 510, a filter 511, a check valve 512, a constant flow valve 513, a water stop solenoid valve 514, an overflow valve 515, a sub-tank 600, and a heat exchanger in this order. 700, a buffer tank 750, a water pump 516 constituting a variable part of the spouting water volume, a fluid regulating valve 517, etc. In addition, the washing water supply flow path 690 is finally connected to the nozzle device 800.

The water supply connection port 510 is arranged at the lower right side of the main body 200 and is connected to, for example, an external water pipe line. The filter 511 is arranged inside the water supply connection port 510 to prevent the inflow of sand and soil contained in the tap water. The check valve 512 prevents the water stored in the auxiliary water tank 600 from flowing back to the water pipe line.

The constant flow valve 513 is arranged downstream of the check valve 512 to keep the amount of washing water flowing to the washing water supply flow path 690 constant. The water stop solenoid valve 514 electrically opens and closes the washing water supply flow path 690 according to a signal from the control unit 130. As shown in FIG. 7, the constant flow valve 513, the water stop solenoid valve 514 and the relief valve 515 are formed integrally.

The sub-tank 600 is arranged downstream of the water stop solenoid valve 514 and is provided with an air opening 603. The heat exchanger 700 can instantly heat the washing water. The buffer tank 750 will make the temperature of the warm water heated by the heat exchanger 700 uniform.

The water pump 516 constituting the variable part of the jetting water is connected to the downstream of the buffer tank 750. The nozzle device 800 is arranged downstream of the water pump 516 and connected to the water pump 516 through the fluid regulating valve 517. The ports of the fluid regulating valve 517 are connected to the buttocks washing nozzle 831, the female part washing nozzle 832, and the nozzle cleaning part 833 of the nozzle device 800.

Furthermore, as shown in FIG. 6, the branch flow path 530 is provided with an on-off valve 530a, and is arranged to be branched between the water pump 516 and the fluid regulating valve 517 of the washing water supply flow path 690. The branch flow path 530 connects the washing water supply flow path 690 and the bubble generating part 560.

The foam generating unit 560 is composed of a check valve 531, a foam tank 532, a lotion tank 533, a lotion pump 534, an air pump 535, and the like.

The branch flow path 530 supplies washing water to the The foam box 532 of the foam generating part 560.

The spreading nozzle 550 is connected to the downstream of the foam tank 532 and is rotationally driven by the spreading nozzle driving part 550a. The lotion tank 533 and the lotion pump 534 are connected to the foam tank 532 and supply lotion to the foam tank 532.

The air pump 535 sends air into the foam tank 532 that has been supplied with washing water and lotion, and in the case of a lotion, generates washing foam. Then, the generated washing foam, washing water, etc. are supplied to the spray nozzle 550 from the foam tank 532.

In addition, the dotted line shown in FIG. 6 shows that each component is electrically connected to the control unit 130 and controlled.

In addition, as shown in FIGS. 7 and 8, among the members constituting the washing unit 500, the water supply connection port 510, the filter 511, the check valve 512, the constant flow valve 513, the water stop solenoid valve 514, and the overflow The valve 515, the auxiliary water tank 600, the heat exchanger 700, the buffer tank 750, and the water pump 516 are assembled in the bottom frame 501. The bottom frame 501 is molded of a resin material such as ABS, and is mounted on the main body 200 after the main body shell 201 as shown in FIG. 2.

Specifically, the filter 511 and the check valve 512 are integrated with the water supply connection port 510. The constant flow valve 513 and the relief valve 515 are integrated with the water stop solenoid valve 514. The buffer tank 750 is formed integrally with the heat exchanger 700.

The water supply connection port 510 and the water stop solenoid valve 514, the water stop solenoid valve 514 and the sub-tank 600, and the sub-tank 600 and the heat exchanger 700 are not through the connecting pipe, etc., but through, for example, an O-ring (O-ring) ( (Not shown) and other seals (packing) are directly connected. Moreover, the various structures that constitute the above-mentioned water circuit will be The components are set and fixed at a predetermined position of the bottom frame 501.

With the above structure, a watertight structure can be realized and the placement accuracy of mutual components can be improved. In particular, the accuracy of the arrangement of the sub-tank 600 and the heat exchanger 700 can be improved. Thereby, the control accuracy of the flow rate of the washing water is improved. As a result, the performance of the cleaning part 500 can be improved and the control accuracy of the flow rate can be improved.

Next, referring to Fig. 7 and Fig. 8 and using Fig. 14 and Fig. 15, the structure of the water pump 516 constituting the discharge water variable portion will be described.

Fig. 14 is a perspective view showing the appearance of the water pump of the water circuit. Fig. 15 is a cross-sectional view of the water pump.

As shown in FIGS. 14 and 15, the water pump 516 is composed of, for example, a positive displacement pump having a substantially L-shape (including an L-shape) in appearance. The water pump 516 is composed of a substantially cylindrical (including cylindrical) motor part 516a, a link mechanism part 516b, a piston part 516c, and the like. The link mechanism part 516b converts the rotational motion of the motor into a reciprocating motion. The piston part 516c is driven by the reciprocating motion of the link mechanism part 516b, and sucks and discharges washing water. Therefore, the piston part 516c has a water suction port 516d and a discharge port 516e on the outer surface as a connection port.

Furthermore, in the case of the water pump 516 of this embodiment, the vibration generated by the motor part 516a, which only rotates, is less than that of the link mechanism part 516b and the piston part 516c accompanying reciprocating motion. constitute.

Specifically, the operation of the water pump 516 is as follows. First, after the motor portion 516a is driven, the piston portion 516c starts to reciprocate. Thereby, the piston part 516c sucks washing water from the water suction port 516d, and discharges the washing water from the discharge port 516e. At this time, the washing water discharged from the discharge port 516e will accompany the piston part 516c The reciprocating movement of the body is spit out with a flow of water accompanied by a moderate pulsation.

In addition, the outer periphery of the substantially cylindrical (including cylindrical) motor part 516a of the water pump 516 having the above-mentioned structure is surrounded by a cushioning member (not shown) made of foamed resin with elasticity. The motor part 516a is inserted into the substantially cylindrical (including cylindrical) water pump installation part 501a provided at the rear part of the chassis 501. Thereby, the water pump installation part 501a supports the motor part 516a. At this time, the link mechanism part 516b and the piston part 516c are suspended and installed in the state suspended downward.

Furthermore, as shown in FIG. 7, the water pump installation portion 501a is formed of a thin ABS resin or the like, and is formed on the upper part of the rib-shaped leg portion 501b rising from the bottom surface of the chassis 501. Thereby, the vibration of the water pump 516 can be effectively absorbed by the elasticity of the resin constituting the water pump installation portion 501a.

In addition, the hot water outlet 712, which is the connection port of the heat exchanger 700 integrated with the buffer tank 750, and the water suction port 516d, which is the connection port of the water pump 516, are a connection pipe 502 made of soft resin (refer to the figure). 8) Come to connect.

As described above, in the water pump 516 of this embodiment, the motor portion 516a with less vibration is installed on the bottom frame 501 through the buffer member and formed with a thinner water pump installation portion 501a. On the other hand, the link mechanism part 516b and the piston part 516c that generate a lot of vibration are suspended and installed in a free state. In addition, the piston portion 516c and the like are connected to the buffer tank 750 through a connecting pipe 502 (refer to FIG. 8) made of a soft resin. Thereby, the vibration generated by the water pump 516 during driving can be prevented from being transmitted to the base frame 501, other components, and the main body 200. As a result, the comfort, durability, etc. of the sanitary washing device 100 during use can be improved.

In particular, the water pump 516 is supported by two different materials of a cushioning member made of foamed resin and an elastic resin forming the water pump installation portion 501a. Therefore, it can absorb vibrations in a wide range of frequencies. In this way, the transmission of the vibration of the main body 200 can be suppressed more effectively.

As described above, the water circuit of the sanitary washing device 100 of this embodiment can be constructed.

<3>The composition of the auxiliary water tank

Hereinafter, the structure of the sub-tank of the sanitary washing device in this embodiment will be described with reference to Figs. 9 to 11.

Fig. 9 is a perspective view showing the appearance of the auxiliary water tank of the water circuit. Fig. 10 is a cross-sectional view of the auxiliary water tank in the transverse direction. Fig. 11 is a cross-sectional view of the sub-tank in the front and rear direction.

First, as shown in FIG. 9, the sub-tank 600 is at least composed of a tank body 610 molded from a resin material such as ABS, a water level detection sensor 620, and a water inlet temperature sensor 630. The water level detection sensor 620 detects the water level of the washing water stored in the tank body 610. The inlet water temperature sensor 630 is constituted by, for example, a thermostat or the like to detect the temperature of the washing water supplied into the tank body 610.

The box body 610 is composed of three front boxes 611 constituting the front wall, both side walls, bottom surface, and top surface of the box, a rear box 612 constituting the rear wall of the box, and an atmosphere opening 613 arranged on the top surface of the box body 610, etc. The component is composed. The overall shape of the box body 610 is formed by a plurality of planes composed of a front wall, a rear wall, two side walls, a bottom surface, and a top surface. The shape when viewed is roughly quadrangular (including quadrangular). The front wall of the front box 611 is provided with an inclined part that starts to retreat from the middle. That is, as shown in FIG. 11, in the shape when viewed from a side view, the box body 610 is formed in a substantially trapezoidal shape (including a trapezoidal shape) in which the upper part becomes thinner than the lower part. Thereby, the cross-sectional area of the upper part of the box body 610 becomes a smaller cross-sectional area than the lower part.

In addition, the box body 610 is provided with a water inlet 601 at the lower part of one side of the side wall of the front box 611, and the box body 610 is provided with a water outlet 602 at the lower part of the rear wall of the box 612.

The atmosphere opening portion 613 arranged on the top surface of the box body 610 has an atmosphere opening port 603 that communicates the inside and the outside of the box body 610. The atmosphere opening 603 releases the air accumulated in the box body 610 to the outside, so as to maintain the internal pressure of the box body 610 at atmospheric pressure at any time. Thereby, the inside of the sub-tank 600 can be maintained at atmospheric pressure, and the washing water supply flow path 690 from the downstream of the sub-tank 600 to the water suction port 516d of the water pump 516 can also be maintained at the atmospheric pressure. Therefore, the water pump 516 can supply washing water to the nozzle device 800 without being affected by fluctuations in the water pressure of the supplied tap water or the like. As a result, the water pump 516 can exert a stable pumping function.

Moreover, as shown in FIG. 10, the flow path 613b in the water pump 516 communicating with the atmosphere opening port 603 of the atmosphere opening part 613 has a buffer part 613a which makes the cross-sectional area of the part of the flow path 613b large. The buffer portion 613a temporarily accumulates the washing water when the washing water is about to flow out of the atmosphere opening 603 in an impact accompanied by bubbles. This prevents the washing water from flowing out of the atmosphere opening 603.

Moreover, the box body 610 also has a partition wall 614 inside. The partition wall 614 divides the inside of the tank body 610 into two tanks, the water inlet tank 615 and the storage tank 616. In the tank body 610, the water inlet 601 is arranged near the bottom surface of the side of the water inlet tank 615 (front tank 611), and the water outlet 602 is arranged near the bottom surface of the rear wall of the storage tank 616 (rear tank 612).

That is, the tank body 610 is formed with a partition wall 614 to form the water inlet tank 615 and the storage tank 616. Thereby, when the washing water flowing in from the water inlet 601 contains air, the air is released from the upper part of the water inlet tank 615 through the atmosphere opening opening 603 to the outside. Therefore, it is possible to allow only the washing water containing no air to flow into the storage tank 616.

In addition, above the water inlet tank 615 of the tank body 610, the side wall of the tank 611 at the front of the tank body 610 protrudes in a substantially horizontal direction (including the horizontal direction), and an opening 615a and an atmosphere opening portion 613 intervening on the upper surface of the water inlet tank 615 are provided. Between the barrier wall 617. The blocking wall 617 has a size that can cover the entire upper opening 615a of the water inlet tank 615.

In addition, the water inlet tank 615 is provided with a plurality of rectifying ribs 618 inside. The rectifying ribs 618 alternately protrude in a substantially horizontal direction (including the horizontal direction) and are provided on the side wall and the partition wall 614 of the box 611 at the front of the box body 610.

Next, the flow of the washing water in the sub tank 600 will be explained.

The washing water flowing in from the water inlet 601 of the sub-tank 600 first flows into the lower part of the water tank 615. The inflowing washing water rises in the water inlet tank 615 while changing the direction of the flow by the rectifying ribs 618. At this time, when the pressure of the washing water flowing in from the water inlet 601 is high, or when the water flow is obviously turbulent due to the large amount of air contained, the rectifying ribs 618 will moderately oppose The water flow is rectified. In addition, the rectifying ribs 618 may cause vortices to be generated on the downstream side of the rectifying ribs 618 to separate the air contained in the washing water by the vortices.

The washing water that has risen in the water inlet tank 615 and separated from the air flows across the upper end of the partition wall 614 into the storage tank 616 and is stored. At this time, even when the pressure of the washing water flowing in from the water inlet 601 is high, or when the water flow is obviously turbulent due to the large amount of air contained, the blocking wall 617 can suppress the washing water Flow upward (to the atmosphere opening part 613 side). That is, the blocking wall 617 can prevent the washing water from directly contacting the atmosphere opening portion 613 or flowing out of the sub tank 600 from the atmosphere opening port 603.

As described above, the washing water flowing in from the water inlet 601 of the sub-tank 600 is used to separate the air contained in the washing water by the rectifying ribs 618 while rising into the water tank 615. The separated air will be released from the atmosphere opening 603 to the outside of the box body 610. Thereby, washing water that does not contain air can be stored in the storage tank 616, and the washing water can be supplied to the heat exchanger 700 from the water outlet 602 of the sub-tank 600.

Furthermore, when air is mixed in the washing water supplied from the sub-tank 600 to the heat exchanger 700, air bubbles are generated inside the heat exchanger 700. As a result, the temperature inside the heat exchanger 700 may rise abnormally, and the heat exchanger 700 may be damaged. Therefore, in the sub tank 600 of the present embodiment, a partition wall 614 is provided inside to separate air from the washing water to prevent air from being mixed in. In addition, only the washing water is supplied to the heat exchanger 700. In this way, damage to the heat exchanger 700 can be effectively prevented.

In addition, as shown in FIGS. 10 and 11, the sub-tank 600 is equipped with: The water level detection sensor 620 is composed of a common electrode 621 formed of a stainless steel material as a common electrode, and a plurality of water level electrodes 622 provided for each water level. In addition, in this embodiment, although an example is shown in which one common electrode 621 and two water level electrodes 622 are configured, it is not limited to this.

The common electrode 621 is arranged on the inner surface of the lower part of the front wall of the box body 610. The water level electrode 622 is arranged on the inner surface of the rear wall of the tank body 610. In addition, the water level electrode 622 is composed of an upper limit electrode 623 arranged on the upper part and a lower limit electrode 624 arranged on the lower part. The common electrode 621 is arranged at a position lower than the lower limit electrode 624 of the water level electrode 622, and is a position that is often submerged in the washing water under normal use conditions.

That is, the common electrode 621 and the upper limit electrode 623 and the lower limit electrode 624 serving as the water level electrode 622 are arranged on different surfaces. Thereby, it is possible to prevent the residual water adhering to the inner surface of the tank body 610 from being erroneously detected as accumulated water.

Here, the method for detecting the water level of the washing water performed by the water level electrode 622 is described below.

First, a DC voltage is applied between the common electrode 621 and the water level electrode 622. In addition, it is detected whether the water level electrode 622 is submerged in the washing water by the change in voltage. Thereby, the water level of the washing water in the tank body 610 is detected. That is, when the water level of the storage tank 616 rises, the lower limit electrode 624 and the upper limit electrode 623 will be flooded. At this time, the voltage between the common electrode 621 and the lower limit electrode 624 and the upper limit electrode 623 will decrease. In this way, the control unit 130 detects the level of the washing water based on the decrease in voltage.

In addition, the upper limit electrode 623 of the water level electrode 622 is used to detect the upper limit water level, and the lower limit electrode 624 is used to detect the lower limit water level. Therefore, the upper limit electrode 623 is provided at a lower position than the atmosphere opening 603. This prevents the washing water from flowing out of the atmosphere opening 603. In addition, the lower limit electrode 624 is arranged above the water outlet 602 that circulates to the heat exchanger 700. Thereby, it is possible to prevent air from flowing into the heat exchanger 700.

As described above, the sub-tank 600 of this embodiment can be constructed.

<4>The composition of the heat exchanger

Hereinafter, the structure of the heat exchanger of the sanitary washing device of this embodiment will be described with reference to Figs. 12 and 13.

Fig. 12 is a perspective view showing the appearance of the heat exchanger of the water circuit. Fig. 13 is a cross-sectional view of the heat exchanger.

Furthermore, the heat exchanger 700 of this embodiment is formed integrally with the buffer tank 750, and the buffer tank 750 is installed on the upper portion of the heat exchanger 700.

First, the heat exchanger 700 is formed in a flat plate shape having a substantially rectangular shape (including a rectangular shape) when viewed from the front (see FIG. 13). The heat exchanger 700 is composed of, for example, a case 701 made of reinforced ABS resin formed by compounding glass fiber with ABS resin, a flat heater 702 made of ceramics, a hot water discharge member 703, and the like.

The housing 701 is composed of a front surface member 710 that constitutes the front portion, and a back surface member 720 that constitutes the back portion. The flat heater 702 is provided in the space formed between the front member 710 and the back member 720. In addition, the heating flow path 715 is formed between the facing portion of the front member 710 and the flat heater 702 and the facing portion of the back member 720 and the flat heater 702 Clearance.

The heat exchanger 700 configured as described above instantly heats the washing water flowing in the heating flow path 715 with the flat heater 702 to raise the temperature.

In addition, the heat exchanger 700 is provided with a water inlet 711 as a connection port on the right side of the lower end of the front surface of the front member 710, and a hot water outlet as a connection port for the hot water discharge member 703 provided on the upper right side of the front member 710 712.

In addition, as shown in FIG. 13, the water inlet flow path 713 connected to the water inlet 711 is provided across substantially the full width (including the full width) of the lower end of the housing 701. A plurality of slits 714 are provided on the upper surface of the water inlet flow path 713 across the full width. Furthermore, it is configured that the washing water that has flowed into the inlet water flow path 713 passes through the slit 714 and then flows into the heating flow path 715. Furthermore, the slit 714 has a function of allowing the washing water to flow evenly across the full width of the heating flow path 715.

In addition, a partition rib 716 is provided at the upper end of the heating flow path 715, and a buffer box 750 is provided above the partition rib 716. The partition rib 716 is provided with a plurality of water passage holes 717 across substantially the full width (including the full width). Thereby, the washing water heated in the heating flow path 715 flows into the buffer tank 750 through the water through hole 717.

In addition, in the buffer box 750, protrusions 718 having a substantially semicircular (including semicircular) cross-sectional shape are provided at intervals across substantially the full width (including the full width). The protrusion 718 disturbs the flow of the washing water flowing in the buffer tank 750 toward the hot water outlet 712. Thereby, the washing water can be mixed to eliminate the temperature unevenness of the washing water. As a result, the washing water with a uniform temperature can be replaced by hot water The discharge port 712 discharges hot water.

The hot water discharge member 703 is provided with two thermistors, a hot water discharge temperature sensor 730 and an excessive temperature rise sensor 731. The hot water discharge temperature sensor 730 detects the hot water discharge temperature of the washing water. The overheating sensor 731 detects the overheating temperature of the heat exchanger 700. Thereby, the control unit 130 controls the temperature of the hot washing water discharged from the heat exchanger 700.

As described above, the heat exchanger 700 of this embodiment can be constructed.

<5>The composition of the nozzle device

Hereinafter, the structure of the nozzle device of the sanitary washing device in this embodiment will be described with reference to FIGS. 16 to 28.

FIG. 16 is a perspective view showing the storage state of the nozzle device in this embodiment. Fig. 17 is a cross-sectional view of the line 17-17 shown in Fig. 16. Fig. 18 is a longitudinal sectional view showing the storage state of the nozzle device. Fig. 19 is a detailed cross-sectional view of part B shown in Fig. 18. Fig. 20 is a cross-sectional view of the line 20-20 shown in Fig. 19. Fig. 21 is a cross-sectional view showing the storage state of the nozzle device. Fig. 22 is a detailed cross-sectional view of part C shown in Fig. 21. Fig. 23 is a longitudinal sectional view showing the buttocks washing state of the nozzle device. FIG. 24 is a detailed cross-sectional view of part D shown in FIG. 23. FIG. Fig. 25 is a longitudinal sectional view showing the washing state of the vagina of the nozzle device. Fig. 26 is a detailed cross-sectional view of part E shown in Fig. 25; Fig. 27 is a cross-sectional view of the nozzle portion showing the cleaning state of the vagina of the nozzle device. FIG. 28 is a detailed cross-sectional view of part F shown in FIG. 27. FIG.

As shown in FIG. 16, the nozzle device 800 is constituted by at least a support portion 810, a nozzle portion 820, a washing nozzle drive portion 860, a fluid regulating valve 517, and the like. The supporting part 810 is made of, for example, POM (polyoxymethylene) Or ABS and other resin materials are molded into a substantially triangular (including triangular) frame shape when viewed from the side. The nozzle part 820 moves forward and backward along the support part 810. The washing nozzle drive unit 860 drives the nozzle unit 820 to advance and retreat. The fluid regulating valve 517 switches the supply of washing water to the nozzle 820.

In addition, in the subsequent description of the nozzle device 800, the storage direction of the nozzle portion 820 is set to the rear, and the direction in and out of the nozzle portion 820 is set to the front, and the right side is set to the right from the rear to the front, and the left side is set to the right side. Set it to the left to illustrate the arrangement of each component.

The support portion 810 is a frame composed of an inclined portion 812 that descends from the rear to the front with respect to the substantially horizontal (including horizontal) bottom portion 811, and a vertical side portion 813 that joins the bottom portion 811 and the rear end of the inclined portion 812. The shape is formed. A guide rail 814 that guides the forward and backward movement of the nozzle portion 820 and a rack guide that guides the flexible rack 861 (refer to FIG. 17) of the cleaning nozzle driving portion 860 are formed on the inclined portion 812 across substantially the entire length (including the full length). Piece 815 (refer to Figure 17). Below the front end of the inclined portion 812, a holding portion 816 supporting a substantially cylindrical shape (including a cylindrical shape) surrounding the nozzle portion 820 is integrally formed.

Moreover, as shown in FIG. 16, the guide rail 814 which guides the nozzle part 820 has a cross section formed in a substantially T shape (including a T shape). The rack guide 815 for guiding the flexible rack 861 has the following structure when viewed in cross-section: it has a substantially U-shape (including U-shape) with one side open, and restricts the upper and lower surfaces of the flexible rack 861 and Guide on the side of one side.

The rack guide 815 is formed by the inclined portion 812 connected to the longitudinal side portion 813 at the rear of the supporting portion 810 and even the bottom side portion 811. The corners of the inclined portion 812 and the longitudinal side portion 813, and the longitudinal side portion 813 and the bottom side portion 811 of the rack guide 815 It is connected in a circular arc shape, for example. Furthermore, the cross-sectional shape of the rack guide 815 formed at the longitudinal side portion 813 and the bottom side portion 811 is also formed in a substantially U-shape (including the U-shape). On the other hand, the side surface of the rack guide 815 is an open left side surface at the inclined portion 812, and a right side surface opposite to the opening at the longitudinal side portion 813 and the bottom side portion 811. Thereby, the sliding resistance can be reduced, and the flexible rack 861 can be guided more reliably. Furthermore, the open surfaces of the longitudinal side portion 813 and the bottom side portion 811 of the rack guide 815 can be closed by, for example, a support portion cover of another member.

The washing nozzle drive unit 860 is composed of a flexible rack 861 coupled to the nozzle unit 820, a pinion 862 engaged with the flexible rack 861, a drive motor 863 that rotates and drives the pinion 862, and the like. The washing nozzle drive unit 860 moves the nozzle unit 820 forward and backward along the guide rail 814.

The driving motor 863 is constituted by, for example, a stepping motor, and the rotation angle is controlled by a pulse signal. Furthermore, by the rotation of the driving motor 863, the flexible rack 861 is driven through the pinion 862.

A gap is provided between the inner circumferential surface of the holding portion 816 of the supporting portion 810 and the outer circumferential surface of the nozzle portion 820. Thereby, the washing water sprayed from the nozzle portion 820 flows into the gap to clean the outer peripheral surface of the nozzle portion 820.

In addition, the nozzle cover 801 is freely opened and closed in front of the holding portion 816, and is opened and closed by the advance and retreat of the nozzle portion 820. Furthermore, the nozzle part 820 is closed with the nozzle cover 801 in the state in which the nozzle part 820 was accommodated. This prevents the nozzle portion 820 from being contaminated by feces or the like.

A water supply connector 817 is provided on the bottom portion 811 of the support portion 810. The water supply connector 817 connects to the water supply pipe (not shown) of the washing water supply flow path 690 and the washing water from the support portion 810. Supply to fluid control valve 517 The connecting pipes 802 are connected to each other.

As shown in FIG. 21, the nozzle portion 820 is at least composed of a rod-shaped nozzle body 830 formed of a resin material such as ABS, a nozzle cover 840, a connecting portion 850, and the like. The nozzle cover 840 is formed in a cylindrical shape, and covers substantially the whole (including the whole) of the nozzle body 830. The connecting part 850 draws the nozzle cover 840 by the nozzle body 830.

As shown in FIG. 6, the nozzle body 830 of the nozzle part 820 includes a buttocks washing nozzle 831 for washing a part of the body, a vagina washing nozzle 832 for washing a part of a woman, a nozzle cleaning part 833 for cleaning the nozzle part 820, and the like.

As shown in FIGS. 23 and 24, the buttocks washing nozzle 831 is a buttocks washing spray port 834 that opens upward at the front end of the nozzle body 830, and the buttocks washing spray port 834 is connected to the buttocks washing spray port 834 from the rear end of the nozzle body 830 The washing flow path 835 is constituted. The buttocks washing flow path 835 is provided on the lower side of the nozzle body 830, and is provided with a curved portion that curves upward below the buttocks washing spray port 834. The bending part is provided with a rectifying plate 835a that rectifies the flow of washing water. Thereby, the washing water sprayed from the buttocks washing spray port 834 is sprayed upward through the spray opening 844 of the nozzle cover 840.

As shown in FIGS. 25 and 26, the pudendal washing nozzle 832 is a pudendal washing nozzle 836 arranged behind the buttocks washing nozzle 834, and a pudendal washing nozzle connected to the pudendal washing nozzle 836 from the rear end of the nozzle body 830. The net flow path 837 is formed. The washing water sprayed from the pudendal washing spray outlet 836 will be sprayed upward through the spray opening 844 of the nozzle cover 840.

As shown in FIG. 27, the nozzle cleaning part 833 is a nozzle cleaning nozzle 838 arranged on the side of the nozzle body 830, and after the nozzle body 830 The nozzle cleaning flow path 839 whose end communicates with the nozzle cleaning ejection port 838 is constituted. The washing water sprayed from the nozzle cleaning spray outlet 838 is sprayed into the nozzle cover 840 and discharged to the outside of the nozzle cover 840 through the drain port 845 of the nozzle cover 840. Furthermore, the washing water sprayed from the nozzle cleaning spray outlet 838 is used for cleaning the nozzle portion 820 and its surroundings.

In addition, the nozzle portion 820 is supported in a state of being inserted into the holding portion 816 of the supporting portion 810 at the front. The rear part of the nozzle part 820 is slidably installed in the state suspended by the guide rail 814. The nozzle portion 820 is configured to be able to store the nozzle portion 820 in a storage position behind the holding portion 816 as shown in FIG. 16, the buttocks washing position where the nozzle portion 820 shown in FIG. 23 protrudes from the holding portion 816, And the pudendal washing position shown in Figure 25 advance and retreat.

As shown in FIG. 21, the nozzle cover 840 is composed of a nozzle cover body 841 and a connecting member 842. The nozzle cover body 841 is formed, for example, by processing a stainless steel sheet into a cylindrical shape, and having a front end surface as a closed surface and a rear end surface as an open surface. The connecting member 842 is formed in a substantially cylindrical shape (including a cylindrical shape) molded from a resin material such as ABS, and connecting pieces 843 engaged with the nozzle body 830 are provided on both sides (see FIG. 22).

A nozzle cover stopper (not shown) for limiting the sliding range of the nozzle cover 840 is integrally formed on the right side of the rear end of the connecting member 842. The nozzle cover stopper abuts on the front stop receiving portion and the rear stop receiving portion (not shown) formed on the support portion 810 to limit the sliding range of the nozzle cover 840.

A part of the connecting member 842 is fixed and integrated in a state of being inserted into the nozzle cover body 841 through the opening at the rear end of the nozzle cover body 841.

On the front upper surface of the nozzle cover body 841, there is provided, for example, one spray opening 844 that can face the buttocks washing spray outlet 834 and the vagina washing spray outlet 836 of the nozzle body 830. On the front lower surface of the nozzle cover body 841, a drain port 845 for draining the washing water flowing out of the nozzle cover body 841 to the outside is provided.

Furthermore, the inner diameter of the nozzle cover 840 has a size slightly larger than the outer diameter of the nozzle body 830. Thereby, in a state where the nozzle body 830 has been inserted into the nozzle cover 840, the nozzle body 830 and the nozzle cover 840 can smoothly slide with each other.

A fluid regulating valve 517 is provided on the rear end surface of the nozzle body 830. As shown in FIG. 6, the fluid regulating valve 517 is composed of, for example, a disc-type valve body 517a and a stepping motor 517b that drives a switching operation. The fluid regulating valve 517 selectively supplies washing water to the buttocks washing flow path 835, the vagina washing flow path 837, and the nozzle cleaning flow path 839 by switching.

The outer surface of the valve body 517a of the fluid regulating valve 517 is provided with a water supply port 517c for supplying washing water to the fluid regulating valve 517 (refer to FIG. 16). The water supply port 517c is connected to the water supply connector 817 of the supporting portion 810 through the connecting pipe 802 to communicate with each other.

Next, the connecting portion 850 constituted by the connecting member 842 of the nozzle cover 840 and the connecting receiving portion 851 of the nozzle body 830 in the present embodiment will be described with reference to FIGS. 22 and 28.

As shown in FIGS. 22 and 28, a connection receiving portion 851 is formed on the right side of the outer periphery of the rear end of the nozzle body 830. The connection receiving portion 851 is composed of two roughly V-shaped (including V-shaped) front recessed portions 851a in the front and rear rear The recessed part 851b is formed by the groove, and is arranged at intervals in the front and rear. In addition, the distance between the front recessed portion 851a and the rear recessed portion 851b is set at the same size as the distance between the buttocks washing spray port 834 and the vagina washing spray port 836.

On the other hand, the connecting member 842 of the nozzle cover 840 includes a substantially cylindrical (including cylindrical) connecting piece 843 that is molded of a resin material such as ABS or POM, and protrudes rearward on both sides of the rear part. The connecting piece 843 is provided with a substantially V-shaped (including a V-shaped) connecting protrusion 843a protruding inward at the rear end portion.

Furthermore, after the nozzle body 830 is inserted into the nozzle cover 840, the connecting protrusion 843a of the connecting member 842 of the nozzle cover 840 is constantly pressed against the connecting receiving portion 851 of the nozzle body 830 by elasticity. At this time, when the connecting protrusion 843a is engaged with either the front recessed portion 851a or the rear recessed portion 851b, the nozzle body 830 and the nozzle cover 840 will be in a connected state. Thereby, the nozzle cover 840 can be pulled by the nozzle body 830 to move.

Furthermore, as shown in FIG. 22, in the state where the connecting protrusion 843a enters the front recessed portion 851a, as shown in FIG. 26, the female cleaning spray outlet 836 of the nozzle body 830 and the spray opening 844 of the nozzle cover 840 face each other. status. On the other hand, as shown in FIG. 28, when the connecting protrusion 843a enters the rear recessed portion 851b, as shown in FIGS. 19 and 24, the buttocks washing spray port 834 and the spray opening 844 face each other. Thereby, the washing water can be sprayed from the predetermined spray port.

As described above, the nozzle device 800 of this embodiment can be constructed.

<6>Control and action of the washing part

The following describes the cleaning of the sanitary cleaning device in this embodiment Department’s control, function and action.

First, the basic functions and operations of the washing unit 500 will be described below with reference to FIGS. 6 and 26.

First, the tap water flowing through the water pipe line is supplied from the water supply connection port 510 as washing water. Then, when the water stop solenoid valve 514 is opened, the washing water can be delivered and supplied to the sub tank 600. At this time, the flow rate of the washing water flowing in the washing water supply flow path 690 is maintained constant by the constant flow valve 513. Furthermore, the driving of the water stop solenoid valve 514 is controlled by the control unit 130 according to the operation of the remote controller 400 and the operation unit 210.

Next, the washing water sent to the sub-tank 600 is stored in the sub-tank 600, and is sent to the heat exchanger 700 and the water pump 516 that constitutes a variable part of the discharge water. Then, the control unit 130 drives the water pump 516 to send the washing water to the nozzle device 800 through the fluid regulating valve 517. Furthermore, the driving of the water pump 516 is controlled by the control unit 130 according to the operation of the remote controller 400 and the operation unit 210.

Next, the control unit 130 energizes the plate heater 702 of the heat exchanger 700 to start heating the washing water. At this time, the control unit 130 controls the energization of the flat heater 702 according to the detection information of the water inlet temperature sensor 630 and the hot water discharge temperature sensor 730. That is, the control unit 130 controls to maintain the washing water at the temperature set by the warm water temperature switch 231 of the operation unit 210.

Secondly, the control unit 130 controls the switching of the fluid regulating valve 517 according to the operation information of the operation unit 210 and the remote controller 400. That is, the control unit 130 switches the fluid regulating valve 517 to the buttocks washing nozzle of the nozzle device 800 831. Any one of the vagina washing nozzle 832 and the nozzle cleaning part 833, and supply washing water. Thereby, the washing water is sprayed from any one of the buttocks washing spray port 834, the vagina washing spray port 836, and the nozzle cleaning spray port 838.

Hereinafter, the control related to the sub-tank 600 of the present embodiment, especially the water level detection and flow rate detection will be described in detail.

First, the control of the washing part 500 in the initial use of the sanitary washing device 100 of the present embodiment will be described with reference to FIG. 29.

Fig. 29 is a time chart of the washing part at the initial use of the sanitary washing device. In addition, the initial use refers to the initial use of the sanitary washing device 100 after installation, or the use of the sanitary washing device 100 after the drainage operation to prevent freezing, etc., which is equivalent to the washing part without storing washing water. status.

As shown in FIG. 29, at the time point P1, the user operates the washing switch of the operation unit 210 or the remote controller 400 (for example, the buttocks washing switch 221 or 410). Thereby, the control unit 130 energizes the water stop solenoid valve 514, and starts the supply of washing water in the sub tank 600. At the same time, the driving of the water level detection sensor 620 is started. Furthermore, the driving of the water level detection sensor 620 is to stop the buttocks washing at the time point P14, wash after the end, and supply the washing water to the sub-tank 600, and make the water level detection sensor 620 continue to detect Until the upper water level.

Secondly, at the time point P2, when the water level detection sensor 620 detects the upper limit water level, the control unit 130 starts time measurement. Then, at a time point P3 when a predetermined time has elapsed, the energization of the water stop solenoid valve 514 is stopped, and the supply of washing water is stopped.

Furthermore, in this embodiment, after the upper limit water level is detected, Stop energizing after, for example, 2 seconds. The reason is that at the time point P2 when the upper limit water level is detected, normally, the sub-tank 600 and the heat exchanger 700 are already in a full water state. Here, there will be an additional supply that lasts 2 seconds. Thereby, the inside of the heat exchanger 700 and the water pump 516 are more surely filled with washing water, and the air in the heat exchanger 700 and the like are removed. As a result, the idling of the heat exchanger 700 caused by the residual air can be prevented more reliably, and the safety and durability can be improved. At the same time, it is possible to surely send the washing water to the water pump 516 constituting the variable part of the spouting water volume to form a full water state. Thereby, the water pump 516 in the full water state is activated, and the washing water can be delivered to the nozzle part 820 more reliably.

Next, the control unit 130 starts the driving of the water pump 516 at the time point P3 when the energization of the water stop solenoid valve 514 is stopped. At the same time, the fluid regulating valve 517 is driven, and the supply of washing water to the buttocks washing flow path 835 of the nozzle portion 820, for example, is started. At this time, by the driving of the water pump 516, the water level of the washing water in the auxiliary water tank 600 will decrease, and at the time point P4, the water level detection sensor 620 will cancel the detection of the upper limit water level. Then, at the time point P4, the control unit 130 starts the driving of the heat exchanger 700. That is, by detecting the drop in the water level, the normal operation of the water pump 516 can be confirmed. Thereby, it is possible to prevent an abnormal temperature rise of the heat exchanger 700 such as an air burning.

The washing water supplied to the buttocks washing flow path 835 is sprayed from the buttocks washing spray port 834. The sprayed washing water is sprayed through the spray opening 844 to the inner surface of the holding part 816 provided at the front end of the support part 810 and is reflected. Thereby, the outer peripheral surface of the nozzle cover 840 is cleaned. In the following, the above-mentioned cleaning operation is referred to as "pre-washing". In addition, the pre-washing is performed after the temperature of the discharged hot water of the heat exchanger 700 reaches 25°C, for example, and continues until the time point P5 after 2 seconds.

Next, after the pre-washing is completed at the time point P5, the control unit 130 will start the driving of the washing nozzle drive unit 860 of the nozzle device 800. Then, the nozzle portion 820 is moved in and out from the storage position to the buttocks washing position. At this time, the control unit 130 switches the fluid regulating valve 517 while moving from the storage position to the buttocks washing position, and supplies washing water to the nozzle cleaning flow path 839. The washing water supplied to the nozzle cleaning flow path 839 is sprayed from the nozzle cleaning spray outlet 838 to the inside of the nozzle cover 840. The sprayed washing water will flow out from the drain 845 to the outside of the nozzle cover 840 after washing the inner surface of the nozzle cover 840. Meanwhile, the nozzle portion 820 can be warmed by the washing water heated by the heat exchanger 700. Thereby, during the subsequent buttocks washing, the spray of cold water can be prevented in advance, and the user's discomfort can be suppressed.

Next, the control unit 130 switches the fluid regulating valve 517 at the time point P6 when the nozzle unit 820 reaches the buttocks washing position to start the supply of washing water to the buttocks washing flow path 835. The washing water supplied to the buttocks washing flow path 835 is sprayed from the buttocks washing spray port 834. Then, the washing water will spray out the opening 844 to wash the part of the user. In addition, the buttocks washing is continued until the time point P11 when the user performs the operation of stopping washing, for example.

At this time, the control unit 130 performs control based on the detection data of the water inlet temperature sensor 630 and the hot water discharge temperature sensor 730 during the driving of the heat exchanger 700 so that the temperature of the washing water becomes the set temperature.

Furthermore, when the driving of the water pump 516 continues from the time point P3, the water level of the washing water in the auxiliary water tank 600 will gradually decrease. Then, the control unit 130 starts to energize the water stop solenoid valve 514 and supply washing water at the time point P7 when the water level detection sensor 620 detects the lower limit water level. Afterwards, control The unit 130 continues to energize the water stop solenoid valve 514 until the time point P8 when the water level detection sensor 620 detects the upper limit water level.

The control unit 130 stops the energization of the water stop solenoid valve 514 at the time point P8 when the upper limit water level is detected, and starts time measurement. In addition, the elapsed time until the next time point P9 when the water level detection sensor 620 detects the lower limit water level is measured.

Then, the control unit 130 calculates the measured elapsed time and the amount of water from the upper limit water level to the lower limit water level (for example, 65 cc) at the time point P9 when the lower limit water level is detected to calculate the flow rate. At the time point P10 when the calculation performed by the flow calculation processing unit ends, if there is a difference between the flow rate set according to the washing intensity and the sprayed flow rate, the control unit 130 adjusts the output of the water pump 516 to correct the washing water Of traffic.

Secondly, at the time point P11 when the user performs the operation of the operation part 210 or the remote controller 400 to stop washing, the controller 130 will stop energizing the water pump 516 and the heat exchanger 700. At the same time, the control unit 130 drives the washing nozzle driving unit 860 of the nozzle device 800 to retract the nozzle unit 820 from the buttocks washing position to the storage position.

At a time point P12 when the nozzle unit 820 has retracted to the storage position, the control unit 130 stops the driving of the washing nozzle drive unit 860. At the same time, the control unit 130 drives the water pump 516 and the heat exchanger 700 again, and starts the "post-cleaning" of cleaning the nozzle unit 820.

Then, at the time point P13 when the predetermined time has passed, the control unit 130 stops the driving of the water pump 516 and the heat exchanger 700. With this, the "post-wash" is completed.

Next, at a time point P13 after the nozzle unit 820 has been cleaned, the control unit 130 will energize the water stop solenoid valve 514 again to supply the washing water to the sub-tank 600. In addition, at the time point P14 when the water level detection sensor 620 has detected the upper limit water level, the control unit 130 stops the energization of the water stop solenoid valve 514, and ends a series of control of the buttocks washing. Thereby, the sub-tank 600 will be in a full water state of the upper limit water level, and the washing unit 500 will be in a standby state.

By the above, the control of the washing part of the sanitary washing device 100 of the present embodiment at the initial use can be implemented.

Hereinafter, the control of the washing part of the sanitary washing device 100 of the present embodiment during normal use will be described with reference to FIG. 30.

Fig. 30 is a time chart of the washing part of the sanitary washing device in normal use. In addition, the so-called normal use corresponds to the case where the washing operation is performed on the sanitary washing device that has been previously used in the standby state during the initial use.

Here, the control of the washing unit in normal use shown in FIG. 30, at the time point P20 when the washing operation is performed, the sub-tank 600 is already full, and the control unit 130 has already remembered that the initial implementation has been implemented. The point of use will be different from the control of the washing part in the initial use shown in Figure 29.

First, as shown in FIG. 30, in the standby state where the auxiliary tank 600 at time P20 is in a full state, the user operates the operation unit 210 or the washing switch of the remote controller 400 (for example, the buttocks washing switch 221 or 410) . Thereby, the control unit 130 energizes the water pump 516 and starts the supply of washing water to the predetermined nozzle unit. At the same time, according to the memory data of the control that has been implemented in the initial operation, Start the energization of the heat exchanger 700.

In addition, the "pre-washing" operation of the nozzle device 800 is started at the same time. Furthermore, the control unit 130 will start the driving of the water level detection sensor 620.

That is, in the case of the initial use described in FIG. 29 and the case of normal use, the control from the time when the washing operation is performed to the time when the energization of the heat exchanger 700 is started is different. In addition, since the control, function, and operation after the time point P5 when the driving of the nozzle device 800 is started are the same as in FIG. 29, the description is omitted.

As described above, the sanitary washing device of this embodiment detects the change of the washing water level by the water level detection sensor installed in the auxiliary water tank, and calculates the flow rate by calculation. This eliminates the need to separately install a dedicated flow sensor for detecting the flow rate in the washing section. As a result, it is possible to simplify the structure of the cleaning section and reduce the cost.

In addition, the sanitary washing device of the present embodiment corrects the threshold value that determines the change in the output voltage between the electrodes in the detection of the water level based on the temperature. As a result, it becomes possible to improve the accuracy of water level detection and flow detection, and to use water with different conductivity in a wider range as the washing water of the sanitary washing device. As a result, the use range and ease of use of the sanitary washing device can be further improved.

In addition, in the initial use of the sanitary washing device of this embodiment, after detecting the full water state of the sub-tank, the water will continue to flow for a predetermined time. At the same time, after the water pump is driven, if the water level detection sensor further detects the elimination of the upper limit water level, it will start to energize the heat exchanger. By this, it can be judged that the washing water is reliably supplied to the heat exchanger, and as a result, It can prevent the heat exchanger from burning out. Therefore, it can be made into a simple structure compared to a structure that uses a general flow sensor to prevent idling. As a result, a sanitary washing device with high safety and reliability can be realized at low cost.

As described above, the control, function, and operation of the washing part of the sanitary washing device in this embodiment can be implemented.

<7> The control and action of the discharge of the inner surface of the toilet with the spreading nozzle

Hereinafter, the discharge control to the inner surface of the toilet by the spreading nozzle of the sanitary washing device in the present embodiment and the function and operation will be described with reference to Figs. 31 to 34. Figs.

Fig. 31 is a perspective view showing the appearance of the spray nozzle of the sanitary washing device. Fig. 32 is a longitudinal sectional view of the dispersion nozzle. Fig. 33 is a plan view showing the installation position of the dispersion nozzle and the rotation angle of the discharge port of the dispersion nozzle in the sanitary washing device. Fig. 34 is a graph showing the pump output of the variable part of the discharge water volume in the rotation angle of the discharge port of the dispersion nozzle.

As shown in FIG. 31 and FIG. 32, the dispersion nozzle 550 is comprised by the dispersion nozzle drive part 550a, the main body 550c, the rotating nozzle 550d, etc. The dispersing nozzle driving unit 550a is constituted by, for example, a motor, and rotationally drives the rotating nozzle 550d. The main body 550c includes an inlet flow path 550b and an inlet hole 550h, and supplies the washing foam, washing water, etc., generated by the foam generating unit 560 shown in FIG. 6 to the rotating nozzle 550d. In addition, the main body 550c rotatably holds the rotating nozzle 550d shaft-sealed with an O-ring 550e and an O-ring 550f inside. Furthermore, an X-shaped ring may be used instead of O-ring 550f. With this, it can be reduced to rotation The torque required for the rotational drive of the nozzle 550d. In addition, it is possible to more reliably prevent the rotation nozzle 550d from sticking. As a result, a small, low-torque motor can be used for the dispersion nozzle drive part 550a.

In addition, the rotating nozzle 550d is rotatably driven by fitting the shaft 550n of the rotating driving body and the spreading nozzle driving part 550a.

As described above, the spray nozzle 550 of the present embodiment can be constructed and operate as follows.

First, the washing water or washing foam generated in the foam generating part 560 of FIG. 6 is supplied from the inlet flow path 550b of the main body 550c of the spray nozzle 550. The supplied washing water or washing foam is supplied into the rotating nozzle 550d through a plurality of inlet holes 550h of the main body 550c opened around the rotating nozzle 550d. Thereafter, it is discharged from the discharge port 550u of the rotating nozzle 550d toward the inner surface of the toilet, the buttocks washing nozzle 831 and the like.

As shown in FIG. 33, the spreading nozzle 550 is arranged on the right side of the center of the main body 200. The reason is that the buttocks washing nozzle 831 for washing the human body part is preferentially arranged in the center. Therefore, the spreading nozzle 550 is not arranged in the center, but arranged on one of the left and right sides. Furthermore, of course, the above configuration can also be reversed.

Next, with reference to FIG. 6, the discharge control of the washing foam etc. of the spray nozzle 550 will be described.

In addition, what is described below is the discharge control of the spreading nozzle 550 when the user is not sitting and the toilet seat is closed.

First, when the user enters the toilet, the control unit 130 of the sanitary washing device 100 uses the human body detection sensor 450 to detect that the person enters the room. with At this time, the control unit 130 shifts to the action of dispersing the toilet foam, and starts the operation of the water pump 516 constituting the variable part of the discharge water volume. In addition, the control unit 130 opens the on-off valve 530a of the branch flow path 530.

In this case, the fluid regulating valve 517 for switching the flow path of the buttocks washing nozzle 831, the female part washing nozzle 832, the nozzle cleaning part 833, etc. is in the closed state. Therefore, the washing water from the heat exchanger 700 passes through the branch flow path 530 and the check valve 531 and the foam tank 532 constituting the foam generating part 560 and is supplied to the spray nozzle 550. The supplied washing water is discharged from the discharge port 550u of the dispersing nozzle 550 toward the inner surface of the toilet or the buttocks washing nozzle 831.

At this time, the control unit 130 drives the dispersion nozzle driving unit 550a to rotationally drive the discharge port 550u of the rotating nozzle 550d of the dispersion nozzle 550. Thereby, the washing water or washing foam discharged from the discharge port 550u will be spread on the inner surface of the toilet and the buttocks washing nozzle 831, etc., to form a water film or a foam film. In this way, the adhesion of dirt and the like can be prevented in advance.

Furthermore, as shown in FIG. 33, the distance from the discharge port 550u of the dispersion nozzle 550 to the inner surface of the toilet varies depending on the direction of the rotation angle of the dispersion nozzle 550.

That is, when the rotation angle of the dispersion nozzle 550 arranged at the above-mentioned position is changed, as shown in FIG. 33, when the rotation angle of the discharge port 550u of the dispersion nozzle 550 is 160°, the discharge port 550u reaches the toilet. The distance to the inner face will become the longest (far). On the other hand, when the rotation angle of the outlet 550u is 340° (corresponding to the position rotated by 180° from the aforementioned 160°), the distance from the outlet 550u to the inner surface of the toilet becomes the shortest (close).

Therefore, as shown in FIG. 34, the control unit 130 controls the rotation angle of the water discharge port 550u of the dispersion nozzle 550 to change the output of the water pump 516 constituting the water discharge variable unit.

Hereinafter, the method of controlling the output of the water pump 516 according to the rotation angle of the dispersion nozzle 550 will be described.

First, the control unit 130 starts the above-mentioned control when the human body detection sensor 450 detects that the user enters the toilet.

Secondly, the control unit 130 changes the output of the water pump 516, which constitutes the variable part of the discharge amount, in the range of "high" to "low" as shown in Fig. 34, according to the rotation angle of the discharge port 550u of the dispersion nozzle 550. Wash off foam, etc.

Specifically, the control unit 130 sets the output of the water pump 516 to be larger (higher) near the rotation angle of 160° where the distance to the inner surface of the toilet shown in FIG. 33 is the longest (far). On the other hand, in the vicinity of the rotation angle of 340° where the distance to the inner surface of the toilet is the shortest (near), the control unit 130 sets the output of the water pump 516 to be small (lower).

That is, the control unit 130 controls the spray volume (and spray speed) of the washing foam and washing water from the discharge port 550u according to the rotation angle of the spray nozzle 550 (that is, the distance between the discharge port 550u and the inner surface of the toilet). .

More specifically, when spraying cleansing foam and cleansing water to the front of the toilet at the furthest distance from the spray outlet 550u of the dispersing nozzle 550, the output of the water pump 516 is set to "High" and the strongest Spit out the cleansing foam and cleansing water vigorously. Thereby, the washing foam and washing water can be fully delivered to the inner surface of the front of the toilet.

On the other hand, when spraying cleansing foam and cleansing water to the back of the toilet which is the closest distance to the discharge port 550u of the dispersing nozzle 550, set the output of the water pump 516 to "low" and discharge it with the weakest force. Wash foam and wash water. In this way, it is possible to prevent the occurrence of undesirable conditions such as washing foam and washing water rebound.

Furthermore, before use, washing water or washing foam is discharged to the entire inner surface of the toilet in advance to form a water film or foam film, whereby the adhesion of dirt during use can be suppressed before it occurs.

In addition, in this embodiment, when the human body detection sensor 450 detects that the user enters the toilet, or the user operates the spreading switch 417 through the operating unit 210 or the remote controller 400, the toilet will be scattered and cleaned. foam. At this time, as shown in FIG. 34, the control unit 130 changes the output of the water pump 516 constituting the spouting water volume variable unit while spreading cleansing foam on the inner surface of the toilet. Specifically, the control unit 130 first rotates the dispersion nozzle driving unit 550a forward (for example, clockwise), and moves the spray nozzle 550u from the back of the toilet through the front of the toilet to the back of the toilet while spreading the washing in the direction of the discharge port 550u of the dispersion nozzle. Net bubble. In addition, the control unit 130 also rotates the dispersion nozzle driving unit 550a counterclockwise (e.g., counterclockwise) to move the discharge port 550u of the dispersion nozzle 550 from the back of the toilet, through the front of the toilet, and return to the back of the toilet while dispersing and washing. foam. That is, the discharge port 550u of the spreading nozzle 550 is rotated in the forward and reverse directions across the inner peripheral surface of the toilet, and the washing foam is spread by at least one back and forth rotation.

In this way, the output of the variable part of the spouting water volume can be controlled so that the cleansing foam can be delivered to the vicinity of the rim 110a of the toilet 110 to spread the cleansing foam on Almost the entire circumference of the inner surface of the toilet 110 (including the entire circumference). As a result, a foam film can be formed on the inner surface from the front to the back of the toilet and the adhesion of dirt can be suppressed.

Furthermore, in this case, as shown in FIG. 34, the control unit 130 may also control the output of the spouting amount variable unit during the forward rotation of the dispersion nozzle drive unit 550a to be proportional to the reverse rotation of the dispersion nozzle drive unit 550a. Lower output to spit out cleansing foam. At this time, the spreading movement trajectory TF of the washing foam as shown by the dotted line in Fig. 33 is generally. When rotating (clockwise), the washing foam will be spread in the direction of the spray nozzle 550u. The edge 110a of the toilet 110 is closer to the inner side of the draft 110b. On the other hand, in the reverse rotation (counterclockwise direction), as shown by the spreading movement trajectory TR shown by the dotted line in FIG. 33, the washing foam will be spread near the toilet 110 in the direction of the spout 550u of the spreading nozzle. The side of edge 110a.

Thereby, in the initial stage of the start of the dispersion of the washing foam (during the normal rotation), the water surface 110b above the discharge port 115 of the toilet 110 can be covered with the washing foam. Thereafter, during the reverse rotation, the cleansing foam can be spread on almost the entire circumference of the inner surface of the toilet bowl 110 near the edge 110a. As a result, a foam film can be formed on the inner surface from the front to the rear of the toilet, and the adhesion of dirt can be effectively suppressed.

In addition, in this embodiment, as shown in FIG. 2, the spreading nozzle 550 is arranged at a position in front of the main body 200 placed and fixed on the toilet 110 as shown in FIG. 2. That is, the spreading nozzle 550 is arranged on the front side than the front end position in the state where the nozzle device 800 is stored, and the nozzle device 800 can protrude the washing nozzle from the storage position to the buttocks washing or genital washing position for washing Net body. Therefore, when rotating and driving, the direction of the outlet 550u of the spray nozzle can be directed to the back of the toilet 110 to spread the cleansing foam. With this, you can The inner surface of the device 110 from the front to the rear forms a foam film of cleansing foam and inhibits the adhesion of dirt.

In the above description, the forward rotation is viewed from the upper side of FIG. 33, and the clockwise rotation is referred to as the forward rotation, and the counterclockwise rotation is referred to as the reverse rotation, but the description is not limited to this. For example, the forward rotation may be a counterclockwise rotation, and the reverse rotation may be a clockwise rotation. That is, when the washing foam is dispersed, the direction in which the spray outlet 550u of the spray nozzle starts to rotate is referred to as forward rotation, and the returning direction is referred to as reverse rotation, and it is not used to limit the direction of rotation.

As described above, the control unit 130 changes the output of the water pump 516 according to the rotation angle of the discharge port 550u of the dispersion nozzle 550. Thereby, the washing water or washing foam can be discharged to the front, the side, and the rear of the inner surface of the toilet with different distances in a sure manner. As a result, a water film or a foam film can be formed in a wide area on the inner surface of the toilet to suppress the adhesion of dirt.

In addition, in the above-mentioned embodiment, the description is made using the configuration in which "high" and "low" are set based on the average level "medium" of the output of the water pump 516 as an example, but it is not limited to this. For example, it may be configured to set the average level "medium" of the output of the water pump 516 to be higher or lower to change the reference level. At this time, it is desirable to provide a level switch for adjusting the average level on the operating unit 210 or the remote controller 400. Thereby, even when the size of the toilet 110 in which the sanitary washing device 100 is installed is different, washing water or washing foam can be discharged to the entire circumference of the inner surface of the toilet. In addition, the height position (relative to the horizontal plane) of the cleansing foam scattered on the inner surface of the toilet bowl 110 can be arbitrarily changed. As a result, the toilet can be more surely The whole inner surface forms a water film or foam film to inhibit the adhesion of dirt.

In addition, in the above-mentioned embodiment, although the discharge control in which the control unit 130 changes the output of the water pump 516 in accordance with the rotation angle of the discharge port 550u of the dispersion nozzle 550 is described as an example, it is not limited to this. For example, in addition to the change of the output of the water pump 516, the control unit 130 may also control the rotation speed of the dispersion nozzle driving unit 550a to change in response to the rotation angle of the discharge port 550u of the dispersion nozzle 550.

That is, in this embodiment, the output of the water pump 516 is changed, and the discharge force of the washing water or washing foam is changed. Thereby, the washing water or washing foam is surely spread to the inner surface of the toilet which is farther away, and the rebound on the inner surface of the closet toilet is effectively suppressed.

However, when the discharge port 550u of the dispersion nozzle 550 is rotated at a fixed rotation speed, the dispersion density of the washing foam and washing water becomes sparser at a distance from the inner surface of the toilet. On the other hand, where the distance to the inner surface of the toilet is far, the density of the washing foam and washing water will become denser.

Therefore, in this embodiment, as described above, the dispersion nozzle driving unit 550a changes the rotation speed of the dispersion nozzle 550 according to the rotation angle of the discharge port 550u. As a result, the distribution density of the washing water or washing foam can be made more even for the entire circumference of the inner surface of the toilet.

Furthermore, even when the output of the water pump 516 is changed to spread the washing foam and the washing water, the spreading density of the washing foam and the washing water can be made equal to a certain extent.

However, according to the rotation angle of the dispersion nozzle 550, the dispersion When the rotation speed of the cloth nozzle driving part 550a is changed to spread the washing foam and washing water, the spreading density can be made more uniform. In other words, the washing foam and washing water can be spouted from the spout 550u of the spreading nozzle 550 and spread across the inner surface of the toilet with a more even spreading density.

That is, when the rotation speed is fixed, as shown in FIG. 33, the washing water or washing water is spread around 160° (that is, toward the front of the toilet) at the rotation angle that is the furthest distance from the discharge port 550u of the spreading nozzle 550 The net foam will disperse and the dispersion density will become thinner. Therefore, when the washing foam and washing water are discharged toward the front of the toilet, the rotation speed of the dispersing nozzle 550 is set to the slowest. Thereby, the time for the discharge port 550u of the dispersion nozzle 550 to pass through the vicinity of the front of the toilet is lengthened to increase the dispersion density.

On the other hand, the washing foam or washing water discharged near the rotation angle of 340°, which is the closest distance to the discharge port 550u of the dispersing nozzle 550 (even behind the device), gathers to make the dispersing density dense. Therefore, the rotation speed of the dispersion nozzle 550 is set to be the fastest. Thereby, the time for the discharge port 550u of the dispersion nozzle 550 to pass through the vicinity of the back of the toilet is shortened, and the dispersion density is reduced.

As a result, regardless of the rotation speed, the distribution of the washing water or washing foam sprayed on the inner surface of the toilet can be equalized (shading eliminated). Therefore, it is possible to more effectively inhibit the adhesion of dirt across the entire circumference of the inner surface of the toilet.

As described above, the control unit 130 changes the rotation speed of the dispersion nozzle driving unit 550a in accordance with the rotation angle of the discharge port 550u of the dispersion nozzle 550. For example, when the direction of the outlet 550u of the dispersing nozzle 550 is toward the inside of the toilet In the case of the rotation angle in front of the toilet where the distance between the surfaces is long, the rotation speed of the dispersion nozzle driving section 550a is set to be small (low speed). On the other hand, when the direction of the discharge port 550u is a rotation angle toward the back of the toilet where the distance to the inner surface of the toilet is short, the rotation speed of the spreading nozzle driving unit 550a is set to be high (high speed).

With this, it is possible to evenly spit out the washing water or washing foam without uneven distribution density on the front, side, and rear of toilets with different distances. As a result, the evenly formed water film or foam film on the inner surface of the toilet can more effectively suppress the adhesion of dirt.

Here, in this embodiment, the control unit 130 controls to spray washing water or washing foam toward the inner surface of the toilet from the spray nozzle 550 when the human body detection sensor 450 detects that a person enters. Specifically, the control unit 130 controls the spray nozzle driving unit 550a to rotate the rotating nozzle 550d at least once when spraying washing foam or the like to the toilet, for example, at least once back and forth, and automatically stop after spraying the foam. Thereby, a water film or foam film can be formed on the inner surface of the toilet before the user uses the sanitary washing device. As a result, it is possible to effectively suppress the adhesion of dirt on the inner surface of the toilet during use.

In addition, although the example in which the spray nozzle 550 is rotated back and forth once before use to spray the washing foam and washing water has been described in the above, it is not limited to this. For example, any number of times may be used as long as it is the number of times that the sprayed washing foam and washing water can sufficiently spread over the inner surface of the toilet. At this time, the number of rounds of the washing foam spread on the inner surface of the toilet can be selected and set by the user through the operating unit 210 or the remote controller 400.

In addition, in the above embodiment, the rotation direction of the dispersion nozzle 550 is Although not mentioned in particular, as shown in FIG. 34, it is a configuration in which the rotating nozzle 550 d is rotated once back and forth. The reason is that when the rotating nozzle 550d of the spray nozzle 550 is configured to rotate only in either the right direction or the left direction, the spray direction of the washing water or washing foam will always be Become the same direction. Therefore, by spreading in a forward and backward rotating manner as in this embodiment, the washing foam and washing water can be spread to the inner surface of the toilet from two directions of forward and reverse rotation. Thereby, the occurrence of so-called scattered omissions can be further reduced. Therefore, it becomes possible to spread the washing foam and washing water more evenly on the inner surface of the toilet. As a result, it is possible to suppress the adhesion of dirt with a small number of spreads (time). In addition, the above-mentioned back and forth rotation is not limited to one back and forth, of course, it may be set to a plurality of times such as 2 back and forth or 3 back and forth.

Specifically, as shown in FIG. 34, first, the rotating nozzle 550d of the dispersion nozzle 550 is rotated forward (for example, clockwise) from a rotation angle of 0° corresponding to the front side of the toilet to a rotation angle of 340°, and then temporarily Stop. After that, the rotating nozzle 550d is rotated in the reverse direction (for example, counterclockwise) from a rotation angle of 340° to a rotation angle of 0°, and stopped after being rotated back and forth.

In this case, a mechanical stopper (ie, a rotation restricting portion) (not shown) may be provided that limits the rotatable range of the rotating nozzle 550d of the spreading nozzle 550 to a rotation angle of 0° to a rotation angle of 340°.

Specifically, the rotation restricting portion is constituted by, for example, a protrusion formed on a part of the outer circumference of the rotating nozzle 550d and a rotation restricting wall of the main body 550c. With this configuration, when the protrusion rotates and physically abuts against the rotation restricting wall, the movement of the rotating nozzle 550d to be rotated is restricted. That is, construct The motor forming the dispersion nozzle driving part 550a will slip and idly rotate by abutting. As a result, the rotating nozzle 550d is configured to be unable to rotate beyond the rotatable range.

As described above, the spreading nozzle 550 of the above-mentioned structure is provided with a rotation restricting portion for restricting the rotation range, and the spreading nozzle 550 is rotated back and forth within the rotatable range that is not restricted by the rotation restricting portion. In addition, the washing foam and washing water are scattered on the inner surface of the toilet from the opposite direction of the back and forth (that is, the two directions of forward and reverse). This reduces the occurrence of so-called scattered omissions. Therefore, it becomes possible to spread the washing foam and washing water more evenly on the inner surface of the toilet. As a result, it is possible to suppress the adhesion of dirt with a small number of spreads (time).

In addition, the dispersion nozzle 550 configured as described above can be used at any time at the position where the protrusion of the rotating nozzle 550d driven by the motor constituting the dispersion nozzle drive part 550a abuts against the rotation restricting part as the origin of the rotation position of the dispersion nozzle drive part 550a. It is recognized. That is, the deviation of the origin caused by the back and forth movement of the rotating nozzle 550d of the dispersion nozzle 550 does not occur. Thereby, the position accuracy of the rotation angle relative to the inner surface of the toilet can be improved. Therefore, it is possible to reduce the unevenness of deviations from the predetermined position of the inner surface of the toilet, such as positional deviation. As a result, it is possible to disperse the washing foam and washing water from the discharge port 550u of the dispersing nozzle 550 at the correct rotation angle position on the inner surface of the toilet with an appropriate discharge output and rotation speed.

In addition, in the above, although the structure which physically restricts the rotation range of the dispersion nozzle 550 was demonstrated, it is not limited to this. In the case where the positional deviation of the origin of the dispersion nozzle 550 does not constitute a problem, it can be simply The forward and reverse rotation of the dispersion nozzle 550 is performed by the dispersion nozzle drive 550a. Thereby, the rotation restricting part becomes unnecessary, and various operations such as forward and reverse rotation or unidirectional rotation can be performed. As a result, it is possible to realize a more appropriate operation in response to the condition of dirt on the inner surface of the toilet. At this time, it is desirable to set the rotation angle around 160°, and to gradually slow down the rotation speed in this vicinity. Thereby, the load applied when the spreading nozzle drive part 550a returns quickly can be reduced.

Hereinafter, the structure of the foam generating part 560 of the sanitary washing apparatus of this embodiment is demonstrated.

The foam generating part 560, using FIG. 6, is connected to the water supply flow path 690 branching between the water pump 516 constituting the spouting water variable part and the fluid regulating valve 517 through the on-off valve 530a as described above. Branch flow path 530. Furthermore, by opening and closing the on-off valve 530a, the washing water is supplied to the bubble generating part 560 through the branch flow path 530.

The foam generating part 560 is composed of a check valve 531, a foam tank 532, a lotion tank 533, a lotion pump 534, an air pump 535, and the like. The foam tank 532 is connected to the branch flow path 530 through a check valve 531.

The above-mentioned spreading nozzle 550 is connected downstream of the foam tank 532. The foam tank 532 is connected to the lotion tank 533 for supplying lotion through the lotion pump 534.

The foam tank 532 is also connected with an air pump 535. The air pump 535 sends air into the foam tank 532 to generate washing foam or the like. In addition, the air pump 535 supplies the washing water and the generated washing foam to the spray nozzle 550.

As above, the foam generating part 560 can be constructed, and as follows Take action.

First, the control unit 130 opens the on-off valve 530a. Then, the control unit 130 drives the water pump 516, and the heat exchanger 700 transfers the washing water to the foam tank 532 of the foam generating unit 560.

At this time, the lotion supplied from the lotion tank 533 by the lotion pump 534 and the washing water supplied from the heat exchanger 700 are mixed in the foam tank 532.

Secondly, the control unit 130 drives the air pump 535 to supply air into the foam tank 532. Thereby, washing foam is generated in the foam tank 532. The generated cleansing foam is supplied to the dispersion nozzle 550, and is discharged to the inner surface of the toilet from the discharge port 550u of the rotating nozzle 550d.

At this time, in accordance with the increase or decrease of the output of the water pump 516 and the air pump 535, the amount and force (discharge speed and discharge pressure) of the washing water or washing foam discharged from the dispersion nozzle 550 will be increased or decreased. ). Thereby, as described with reference to FIG. 34, the washing foam and washing water can be evenly dispersed on the inner surface of the toilet. That is, the air pump 535 of the bubble generating unit 560 also functions as a variable part of the jetting water amount similarly to the water pump 516.

In addition, in the above, although the configuration in which the on-off valve 530a is provided in the branch flow path 530 has been described as an example, it is not limited to this. For example, a configuration in which a flow path switching valve is provided at the branch portion of the branch flow path 530 and the washing water supply flow path 690 may also be made.

That is, the foam generating unit 560 of the present embodiment includes a foam tank 532 between the on-off valve 530a and the spray nozzle 550. The foam tank 532 is supplied with lotion from the lotion tank 533 and generates washing foam. Has the generated cleansing foam It is a structure that the discharge port 550u of the dispersion nozzle 550 discharges toward the inner surface of the toilet.

As a result, not only a water film formed by the dispersion of water or warm water on the inner surface of the toilet, but also a foam film of washing foam containing lotion is formed. As a result, the cleansing foam can more effectively suppress the adhesion of dirt.

In addition, the cleansing foam containing lotion can effectively suppress the odor caused by dirt and the like. In addition, the cleansing foam can give the user a visually clean impression. As a result, the comfort of the user is further improved.

Furthermore, in the above-mentioned embodiment, although the configuration in which the washing water or washing foam is spread on the inner surface of the toilet when the human body detection sensor 450 detects the entry of a person is described as an example, it is not Limited to this. For example, it is also possible to form a configuration in which a person operates a spread switch 417 provided in the operation unit 210 or the remote controller 400 to perform spreading. Thereby, even when the toilet as a sanitary washing device is not used, when the dirt on the inner surface of the toilet is concerned, the washing foam containing lotion can be sprayed on the inner surface of the toilet to remove the dirt. Furthermore, it is possible to prevent the situation in which the dried up stubborn dirt adheres to the draft surface 110b and the like. That is, by operating the dispersing switch 417 by the user, a foam film containing cleansing foam containing lotion can be formed on the inner surface of the toilet at any time. As a result, the inner surface of the toilet can be kept clean.

In addition, in the above-mentioned embodiment, the user may use the operation unit 210 or the dispersion selection switch (not shown) of the remote controller 400 in advance to arbitrarily select either of the washing water and the washing foam to be sprayed on the inner surface of the toilet. The composition. Thereby, it can be arbitrarily selected according to the condition of the dirt on the inner surface of the toilet or the occurrence of odor. As a result, unnecessary use of lotion can be suppressed, and cost performance can be improved.

In addition, in the above embodiment, when the cleansing foam is spread on the inner surface of the toilet, the control unit 130 can also be configured as follows: in accordance with the rotation angle of the spout 550u of the spreading nozzle 550, it is different from the use of the water described in FIG. 34. Similarly, the output of the pump 516 changes the output of the air pump 535. That is, the air pump 535 may be used as a variable part of the jetting water amount. Thereby, the washing foam or washing water can be effectively delivered to the front, the side, and the rear of the inner surface of the toilet with different distances. As a result, a foam film or a water film can be formed on the inner surface of the front of the toilet, and the adhesion of dirt can be suppressed.

Specifically, as described in FIG. 34, the distance from the outlet 550u of the dispersion nozzle 550 to the inner surface of the toilet is around 160°, which is the longest (far) rotation angle, and the control unit 130 pumps the air The output (air pressure) of 535 is set to be larger (higher). In this way, the air pressure of the air pump 535 can be increased, so as to strengthen the force of the washing foam and washing water flying to the distal end from the discharge port 550u of the dispersion nozzle 550.

On the other hand, the output (air pressure) of the air pump 535 is set to be small (lower) near the rotation angle of 340° where the distance from the outlet 550u to the inner surface of the toilet is the shortest (near). The air pressure of the air pump 535 can be reduced to weaken the force of the washing foam and washing water to fly out. That is, the pressure of the air discharged by the air pump 535 is adjusted in accordance with the distance from the discharge port 550u of the dispersion nozzle 550 to the inner surface of the toilet. As a result, the cleansing foam and cleansing water can be spit out from the inner surface of the toilet without any omission.

Moreover, in the above-mentioned embodiment, it is also possible to make a structure further equipped with the dirt detection part (not shown) which detects the dirt of a toilet bowl by the imaging element, such as a CCD (Charge Coupled Device). at this time, The control unit 130 will intensively spread the washing foam and washing water from the spreading nozzle 550 to and fro the part where the dirt remains according to the detection result of the dirt detection unit. Thereby, it is possible to effectively suppress and remove adhering dirt. Furthermore, in addition to the method of only going back and forth in the dirt part, the rotation speed of the discharge port 550u of the spreading nozzle 550 passing through the dirt part may also be driven to rotate at a lower speed. Furthermore, it can also be configured to further increase the output of the water pump 516 and the air pump 535 when passing through the dirt part. By this, the same effect can be obtained.

As described above, the sanitary washing device of this embodiment includes: a toilet seat 300 that is freely tilted and placed on the toilet 110, a body 200 that supports the toilet seat to be freely tilted, a heat exchanger 700 that heats the washing water, and washing The human body washing nozzle 831, the foam generating part 560 which generates washing foam, and the spray nozzle 550 which discharges washing water or washing foam to the inner surface of the toilet. Furthermore, it is further provided with: a spraying water volume variable part 516 that can change the flow rate of washing water or washing foam sent to the spraying nozzle, a spraying nozzle driving part 550a for rotating the spraying nozzle 550u in a predetermined direction, The on-off valve 530a, the control unit 130, and the operation unit 210 that open and close the branch flow path to the dispersion nozzle. In addition, the control unit 130 has a configuration for controlling the spray nozzle 550 so that the spray nozzle 550 sprays washing water or washing foam to a plurality of surrounding areas with different heights of the inner surface of the toilet.

Thereby, when the washing foam is spread to the toilet 110 by the spreading nozzle 550, the control unit 130 can be almost as shown in FIG. 33 in the area where the height of the inner surface of the toilet 110 is higher and the area lower than it. Spread throughout the week. As a result, it can span the inner surface of the toilet 110 from the front to the back of the surrounding area. Form a foam film to inhibit the adhesion of dirt.

In the above content, the description is an example of the control, function and action of spraying the cleansing foam toward the inner surface of the toilet when the spray nozzle is executed in the non-seat state and the toilet seat is closed.

That is, the control unit 130 rotates the spray nozzle 550 in the direction of the discharge port 550u in a wide range of rotation angle. At this time, the control unit 130 controls the output of the water pump 516 constituting the discharge water variable part with an output from "low" to "high", so as to discharge the cleansing foam around the inner surface of the toilet. Thereby, the cleansing foam can be discharged in a wide range of the inner surface of the toilet. As a result, a foam film can be formed in a wide area on the inner surface of the toilet, and the adhesion of dirt can be effectively suppressed.

Furthermore, controlling the above-mentioned water pump 516 with a "high" output means that, compared to the output of the water pump 516 in the operating conditions described in the following items <8> and <9>, The output is relatively high meaning.

<8> Discharge control and action and action on the inner surface of the toilet by the spreading nozzle in the seated state

Hereinafter, the discharge control of the spreading nozzle 550 when the spreading switch 417 is operated while the user is seated on the toilet seat 300 will be described using FIGS. 35A and 35B.

Fig. 35A is an explanatory diagram showing the pump output during the discharge operation of the dispersion nozzle toward the inner surface of the toilet. Fig. 35B is an explanatory diagram showing the discharge direction of the dispersion nozzle toward the inner surface of the toilet.

At this time, the toilet seat opening/closing detection unit 331 detects the closed/closed state of the toilet seat, and the seating detection unit 330 detects the sitting state.

In the above state, the user can press the operation part 210 or the spread switch 417 of the remote controller 400.

Thereby, as shown in FIG. 35B, first, the control unit 130 drives the dispersion nozzle driving unit 550a until the direction of the discharge port 550u of the dispersion nozzle 550 is toward the back of the toilet. Then, the driving of the spreading nozzle 550 is stopped. In the case of the present embodiment, the so-called rear of the toilet corresponds to a position where the rotation angle of the discharge port 550u is, for example, around 100° as shown in FIG. 35A (see FIG. 33). In addition, it is not limited to the above-mentioned rotation angle, as long as it is in the range of about 100 degrees to 240 degrees in a counterclockwise direction, for example.

Secondly, the discharge output of the water pump 516 or the air pump 535 constituting the variable part of the discharge water volume is controlled with a "low" output. Then, in the direction shown by the arrow in FIG. 35B, the spray nozzle 550 spits out the cleansing foam near the back of the toilet for a predetermined time. Furthermore, in this embodiment, the predetermined time is set to, for example, 8 seconds.

That is, under the above-mentioned conditions, the cleansing foam will be spit out to a position behind the toilet with a weak force ("low" output). Therefore, there is no doubt that the spitted cleansing foam will splash toward the user who is sitting on the toilet seat 300. Furthermore, the cleansing foam scattered on the back of the toilet will cover up to the draught 110b in the toilet. Thereby, it is possible to suppress the diffusion of the odor accompanied by excretion and the adhesion of dirt on the inner surface of the toilet.

In addition, the cleansing foam covering the water surface 110b in the toilet serves as a buffer when the user's stool or urine drops to the water surface 110b when the user is seated. As a result, with the cushioning effect of the cleansing foam, In order to suppress the rebound around the toilet or the user.

According to the operation of the above-mentioned dispersing nozzle 550, when the user is in a seated state and the toilet seat is closed, when a foam dispersing signal is input through the dispersing switch 417, the dispersing nozzle driving part 550a will be driven to the discharge port of the dispersing nozzle 550. When the direction of 550u is toward the back of the toilet, it stops. After that, the water pump 516 and the air pump 535 are controlled with a "low" output, and the cleansing foam is discharged toward the back of the toilet.

That is, when the user is already seated on the toilet seat 300, the cleansing foam will be spit out toward the back of the inner surface of the toilet with a weak force. Thereby, there is no situation that the washing foam splashes toward the user, and the draft 110b of the discharge port 115 can be covered with the washing foam. As a result, it is possible to suppress the spread of odor during excretion and the adhesion of dirt on the inner surface of the toilet.

<9> Discharge control and function and action by the spreading nozzle in the open and non-seat state of the toilet seat

Hereinafter, using FIGS. 36A and 36B, when a man urinates, when the user is not seated on the toilet seat 300, and the toilet seat 300 is almost vertically opened, the user operates the spreading switch 417 for the spreading nozzle Explain the discharge control.

Fig. 36A is an explanatory diagram showing the pump output during the discharge operation of the dispersion nozzle toward the inner surface of the toilet. Fig. 36B is an explanatory diagram showing the discharge direction of the dispersion nozzle toward the inner surface of the toilet.

At this time, since the user is in a standing posture, the toilet seat 300 is in an opened state. That is, the toilet seat switch detection unit 331 detects the open state of the toilet seat, and the seating detection unit 330 detects the non-seated state.

In the above state, the user can press the operation part 210 or the spread switch 417 of the remote controller 400.

Thereby, as shown in FIG. 36B, first, the control unit 130 drives the dispersion nozzle driving unit 550a until the direction of the discharge port 550u of the dispersion nozzle 550 is toward the discharge port 115 of the toilet. Then, the driving of the spreading nozzle 550 is stopped. In addition, in the case of this embodiment, the rotation angle of the discharge port 550u shown in FIG. 36A is stopped at a position (refer to FIG. 33) where the rotation angle of the discharge port 550u is, for example, around 150°. Thereby, the direction of the discharge port 550u will face the discharge port 115 of the toilet.

Next, as shown in FIG. 36A, the control unit 130 controls the discharge output of the water pump 516 or the air pump 535, which constitutes the discharge water variable part, to approximately "medium" output. Then, in the direction indicated by the arrow in FIG. 36B, the spray nozzle 550 discharges the cleansing foam toward the discharge port 115 of the toilet 110 for a predetermined time. Furthermore, in this embodiment, the predetermined time is set to, for example, 8 seconds. Thereby, the discharged cleansing foam will become a state covering the water surface above the discharge port 115 (that is, the so-called draft surface 110b). Furthermore, the above-mentioned output of approximately "medium" in the case of this embodiment means an output that can directly reach the discharge port 115 of the toilet.

That is, under the above-mentioned conditions, the control unit 130 controls the water pump 516 constituting the discharge water volume variable unit to discharge washing foam or the like with an output of approximately "medium". Furthermore, the washing foam is discharged to the vicinity of the draft surface 110b above the discharge port 115 beforehand, and the draft surface 110b is quickly covered with the washing foam. Thereby, it is possible to suppress the diffusion of the odor accompanying urination and the like and the adhesion of dirt near the water surface 110b of the toilet 110.

In addition, when the excreted urine falls near the draft surface 110b, the cleansing foam covering the draft surface 110b will act as a buffer. As a result, the cushioning effect of the cleansing foam can suppress the rebound around the toilet 110.

In addition, in FIGS. 36A and 36B, although the illustration shows that the cleansing foam is discharged to a point near the center of the discharge port 115 of the toilet 110, it is not limited to this. For example, the direction of the discharge port 550u of the dispersion nozzle 550 may be directed to the range of the draft surface 110b of the discharge port 115, and the washing foam may be discharged. At this time, the position where the cleansing foam is spread may be either the front side, the center, the rear side, or the left and right sides of the toilet near the draft 110b of the discharge port 115. That is, the cleansing foam is dispersed in the approximate range (inclusive range) of the draft surface 110b of the discharge port 115. Thereby, the cleansing foam can be spread on the draft surface 110b within a few seconds after the start of spitting. As a result, it is possible to more reliably suppress the adhesion of dirt near the draft 110b of the toilet bowl 110.

At this time, it is not necessary to discharge the cleansing foam in a state where the rotation angle of the discharge port 550u is stopped. For example, the dispersing nozzle 550 may be moved back and forth in a narrow range near the draft 110b of the discharge port 115 while dispersing the washing foam. In addition, the discharge output of the water pump 516 or the air pump 535 may be changed, and the washing foam may be discharged. Thereby, the draft surface 110b of the discharge port 115 can be covered with the washing foam more efficiently.

According to the operation of the above-mentioned dispersing nozzle 550, when the user is not seated and the toilet seat is in the open state, when the foam dispersing signal is input through the dispersing switch 417, the control unit 130 will drive the dispersing nozzle driving part 550a to the discharge port of the dispersing nozzle 550 Stop when the direction of 550u faces the position of the toilet discharge port only. After that, the water pump 516 and the air pump 535 are controlled with an output of about "medium", and the washing foam is discharged toward the draft 110b of the discharge port 115 of the toilet 110.

That is, when the user is not seated on the toilet seat 300 and the spreading switch 417 is operated with the toilet seat in the open state, the washing foam will be spit out toward the draught surface 110b of the discharge port 115 of the toilet 110 with approximately "medium" force. Thereby, the water surface 110b above the discharge port 115 of the toilet bowl 110 can be covered with cleansing foam. As a result, it is possible to suppress the spread of odor during urination and the adhesion of dirt near the water surface 110b of the toilet 110.

As described above, in the sanitary washing device of this embodiment, the control unit 130 responds to the seated state of the toilet seat 300 and the open/closed state of the toilet seat, so that the direction of the discharge port 550u of the dispersion nozzle 550 and the variable part of the discharge amount The output of the water pump 516 is changed. Thereby, various uses of the spray nozzle 550 for discharging washing foam can be made possible according to the scene in which the sanitary washing device 100 is used. As a result, it becomes possible to control the scene with an appropriate amount of foam, and to save the amount of lotion used.

In addition, in this embodiment, although the structure which used the motor as an example of the dispersion nozzle drive part 550a was demonstrated, it is not limited to this. For example, it is also possible to make a configuration in which the dispersion nozzle 550 is rotated by the reaction when the washing foam is discharged from the discharge port 550u of the dispersion nozzle 550. With this, the configuration can be simplified and power consumption can be suppressed.

In addition, in the present embodiment, although the configuration provided with one dispersion nozzle 550 has been described as an example, it is not limited to this. For example, it can also be made into a configuration in which a plurality of spray nozzles are arranged in the following form: in the toilet 110 A spray nozzle for spraying washing foam near the edge 110a, a spray nozzle for spraying washing foam near the discharge port 115 of the toilet 110, and the like. At this time, a plurality of dispersing nozzles can be independently rotated, or they can be rotated in a coordinated manner. Thereby, the cleansing foam can be spread on the inner surface of the toilet in a short time.

In addition, in this embodiment, although the configuration in which one discharge port 550u is provided in the dispersion nozzle 550 is described as an example, it is not limited to this. For example, the spray nozzle 550 may be provided with a plurality of outlets such as an outlet for spraying cleansing foam near the edge 110a of the toilet bowl 110 and a spray outlet for spraying cleansing foam near the outlet 115 of the toilet bowl 110. Thereby, the cleansing foam can be spread on the inner surface of the toilet in a short time.

In addition, in this embodiment, although a configuration in which the dispersion nozzle 550 is dispersed in the vicinity of the edge 110a of the toilet 110 and the vicinity of the discharge port 115 of the toilet 110 is described as an example, it is not limited to this. For example, in addition to the above, it is also possible to further create a configuration in which the spray nozzle 550 spreads the cleaning foam to the middle position (height) between the edge 110a of the toilet 110 and the discharge port 115. This can further reduce the occurrence of scattering omissions.

As explained above, the sanitary washing device of the present invention is provided with: a toilet seat that is freely lifted upside down and placed on the toilet, the toilet seat is supported as a body that can be lifted upside down, a heat exchanger that heats the washing water, and a body wash Washing nozzle, foam generating part that generates washing foam, and spray nozzle that spit washing water or washing foam to the inner surface of the toilet. Furthermore, it is equipped with: a variable part of the discharge water volume that can change the flow rate of the washing water or foam sent to the dispersion nozzle, and a dispersion nozzle drive part that rotates the discharge port of the dispersion nozzle in a predetermined direction. On-off valve that opens and closes the branch flow path of the nozzle, The control unit and the operation unit that instructs the control unit to set. Furthermore, it is also possible to make a configuration in which the control unit controls the spray nozzle 550 so that the spray nozzle sprays washing water or washing foam to areas with different heights of the inner surface of the toilet bowl.

According to this structure, when the foam (hereinafter referred to as "washing foam") is sprayed to the toilet by the spray nozzle, the control unit will spread the washing foam according to the high and low areas of the inner surface of the toilet. Almost the entire circumference of the inside of the toilet. Thereby, the foam film can be formed from the front of the toilet to the inner surface of the rear without omission, and the adhesion of dirt can be effectively suppressed.

In addition, the control unit of the sanitary washing device of the present invention rotates the spray nozzle drive unit forward and backward while changing the output of the spray water variable unit when the washing foam is sprayed to the toilet by the spray nozzle. Moreover, the control unit can also control the direction of the spray nozzle of the spray nozzle to span the inner circumference of the toilet, and spray the cleansing foam with at least one back-and-forth rotating motion.

With this configuration, first, the control unit rotates the dispersion nozzle drive unit forward, and moves the direction of the discharge port of the dispersion nozzle from the back of the toilet, through the front of the toilet to the back of the toilet, so that the dispersion nozzle spreads the cleansing foam to the toilet. After that, the dispersion nozzle driving unit is reversely rotated, and the direction of the discharge port of the dispersion nozzle is moved from the back of the toilet, through the front of the toilet, to the direction of returning to the back of the toilet, so that the dispersion nozzle disperses the cleansing foam to the toilet. That is, by rotating the inner peripheral surface of the toilet at least once back and forth, the cleaning foam is dispersed by the spray nozzle. At this time, the output of the variable part of the spouting water volume is controlled to make the washing foam reach the edge of the toilet or near the water surface during the normal rotation or the reverse rotation, and the washing foam is dispersed by the spray nozzle. In this way, the cleansing foam can be spread to almost the entire circumference of the inner surface of the toilet, and to the front of the toilet. A foam film is formed on the inner surface of the rear. As a result, the adhesion of dirt can be effectively suppressed.

In addition, the control unit of the sanitary washing device of the present invention can also be configured as follows: the output of the variable part of the spraying water volume during the forward rotation of the dispersion nozzle driving part is controlled to be lower than that during the reverse rotation of the dispersion nozzle driving part The output of the spray nozzle spit out cleansing foam.

According to this structure, when the spray nozzle that is rotationally driven in one back and forth is rotated forward, the output of the variable part of the discharge amount is weakened to spread the cleansing foam to the side closer to the water surface than the edge of the toilet. . On the other hand, when it rotates in the reverse direction, the output of the variable part of the spray volume will be strengthened to spread the cleansing foam to the side close to the edge of the toilet. Thereby, it is possible to cover the draft surface of the upper part of the discharge port of the toilet with the washing foam at the initial stage of the start of the washing water dispersion. Furthermore, the cleansing foam can be spread almost all around the inner surface of the toilet close to the edge. As a result, a foam film can be formed on the inner surface from the front to the back of the toilet, and the adhesion of dirt can be suppressed.

In addition, the sanitary washing device of the present invention further includes a human body detection sensor that detects the entry and exit of a user in the toilet, and the control unit can also control the spreading nozzle to detect when the human body detection sensor detects that the user enters the toilet. Spread the cleansing foam in the toilet.

According to this configuration, when the human body detection sensor detects that the user enters the toilet, the cleansing foam is sprayed almost all around the inner surface of the toilet in advance. As a result, a foam film can be formed on the inner surface of the toilet before use, so that adhesion of dirt can be suppressed when it does not occur.

In addition, the foam generating part of the sanitary washing device of the present invention includes: The foam tank that supplies washing water from the heat exchanger through the variable part of the spouting water volume, the lotion pump that supplies the lotion in the lotion tank to the foam tank, and the air pump that supplies air to the foam tank. Moreover, the control unit can also control the spray nozzles to discharge the washing water or washing foam of the foam tank.

According to this structure, not only water or warm water can be discharged to the surface of the washing nozzle or the inner surface of the toilet, but also washing foam containing lotion can be discharged. Thereby, the cleaning effect and the effect of suppressing the adhesion of dirt can be improved. In addition, the diffusion of unpleasant odors can be suppressed by washing foam containing lotion. As a result, it is possible to provide the user with a visual sense of cleanliness and comfort during use.

130‧‧‧Control Department

500‧‧‧Cleaning Department

510‧‧‧Water supply connection port

511‧‧‧Filter

512, 531‧‧‧Check valve

513‧‧‧Constant flow valve

514‧‧‧Water stop solenoid valve

515‧‧‧Relief valve

516‧‧‧Water pump (variable discharge volume)

517‧‧‧Fluid regulating valve

517a‧‧‧Valve body

517b‧‧‧Stepping motor

530‧‧‧Branch flow path

530a‧‧‧On-off valve

532‧‧‧Foam Box

533‧‧‧Lotion box

534‧‧‧Lotion pump

535‧‧‧Air pump

550‧‧‧Dispersing nozzle

550a‧‧‧Spreading nozzle drive

560‧‧‧Foam Generation Department

600‧‧‧Auxiliary water tank

603‧‧‧Atmospheric opening

620‧‧‧Water level detection sensor

630‧‧‧Water temperature sensor

690‧‧‧Washing water supply flow path

700‧‧‧Heat exchanger

730‧‧‧Hot water discharge temperature sensor

731‧‧‧Overheating sensor

750‧‧‧Buffer box

800‧‧‧Nozzle device

820‧‧‧Nozzle

830‧‧‧Nozzle body

831‧‧‧Buttocks washing nozzle

832‧‧‧Puddies Washing Nozzle

833‧‧‧Nozzle Cleaning Department

860‧‧‧Washing nozzle drive

Claims (6)

A sanitary washing device, comprising: a main body arranged in a toilet; a spray nozzle to form a water film or a foam film on the inner surface of the toilet; a variable part of the spouting water volume that can change the flow of washing water sent to the spray nozzle; The nozzle drive unit rotates and drives the direction of the discharge port of the dispersion nozzle; the switch valve opens and closes the water path to the dispersion nozzle; the control unit controls its actions; and the operation unit sets instructions to the control unit. The control unit changes the speed of the dispersion nozzle drive unit in accordance with the rotation angle of the discharge port of the dispersion nozzle. For example, the sanitary washing device of claim 1, wherein the control unit changes the output of the discharge water variable unit in accordance with the rotation angle of the discharge port of the dispersion nozzle. For example, the sanitary washing device of claim 2, wherein the control unit outputs the output of the discharge water variable unit when the direction of the discharge port of the dispersion nozzle is the rotation angle in front of the toilet where the distance to the inner surface of the toilet is relatively long. It is set to be larger, and when the direction of the discharge port of the dispersion nozzle is a rotation angle behind the toilet where the distance to the inner surface of the toilet is short, the output of the discharge water variable part is set to be small. Such as the sanitary washing device of any one of claims 1 to 3, wherein the aforementioned dispersion The nozzle is provided with a rotation restriction portion for restricting the rotation range toward the rear side of the toilet, and the dispersion nozzle is rotated back and forth in the rotation range not restricted by the rotation restriction portion. The sanitary washing device according to any one of claims 1 to 3, wherein a foam tank is provided between the on-off valve and the spray nozzle, and a lotion tank and a lotion pump for supplying lotion are connected to the foam tank, and It is also equipped with an air pump that sends air into the foam box to produce foam. The control unit will change the output of the air pump in response to the rotation angle of the spray nozzle of the spray nozzle, and match it from the spray nozzle of the spray nozzle. Bubbles are spit out from the inside of the toilet. For example, the sanitary washing device of any one of claims 1 to 3, which also has a human body detection sensor that detects the entry and exit of a user in the toilet, and the aforementioned human body detection sensor detects that the user enters the toilet At this time, washing water or foam is sprayed from the aforementioned spray nozzle toward the inner surface of the toilet only at a predetermined number of revolutions or a predetermined time from the rotating discharge port.

Images