CN108699825B - Sanitary cleaning device - Google Patents

Abstract

A sanitary washing device, wherein the sanitary washing device comprises: a main body provided to a toilet; a foam generating section (560) for generating a cleaning foam; a spray nozzle (550) for spraying washing water or washing foam to the inner surface of the toilet bowl; a spray nozzle driving part (550a) for driving and rotating the direction of the spray nozzle (550) outlet; and a control unit (130) that controls at least the operation of the distribution nozzle drive unit (550 a). The control unit (130) is configured to be capable of executing a rotating foam dispensing command mode in which wash foam is dispensed into the toilet bowl while being driven to rotate the direction of the discharge port of the dispensing nozzle (550), and a flushing command mode in which wash water is discharged from the dispensing nozzle through the foam generating unit.

Description

Sanitary cleaning device

Technical Field

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

Background

Conventionally, such a sanitary washing apparatus is configured such that a washing nozzle is projected from a storage position to a hip washing position or a lower body washing position, and washing water is ejected from a discharge port of the washing nozzle to wash a part of a human body.

There has been proposed a sanitary washing apparatus including a spray nozzle for spraying foam to the inner surface of a toilet bowl before defecation to form a foam film on the inner surface of the toilet bowl, in addition to the washing nozzle for washing the private parts of the human body (see, for example, patent document 1).

However, such a conventional sanitary washing apparatus has the following structure: the foam is automatically sprayed from the spray nozzle by detection of a detection unit for detecting seating of a user, and a foam film is formed on the inner surface of the toilet bowl before defecation, thereby preventing adhesion of dirt on the inner surface of the toilet bowl.

However, there are problems as follows: a sufficient effect cannot be expected as a countermeasure against contamination due to, for example, a portion on the inner surface of the toilet bowl where the foam scattering does not sufficiently reach.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2000-104319

Disclosure of Invention

The present disclosure provides a sanitary washing device which forms a foam film on an inner surface from the front to the rear of a toilet to suppress the adhesion of dirt.

A sanitary washing device, wherein the sanitary washing device comprises: a main body provided to a toilet; a foam generating section for generating a cleaning foam; a spray nozzle for spraying washing water or washing foam to an inner surface of the toilet bowl; a spray nozzle driving part for driving and rotating the direction of the spray nozzle; and a control unit for controlling at least the operation of the spray nozzle driving unit. The control unit is configured to be capable of executing a rotating foam dispensing command mode in which the cleaning foam is dispensed into the toilet bowl while being driven to rotate the direction of the discharge port of the dispensing nozzle, and a flushing command mode in which the cleaning water is discharged from the dispensing nozzle through the foam generating unit.

With this configuration, when toilet foam is dispensed from the dispensing nozzle to the toilet (hereinafter referred to as flush foam), the flush foam can be dispensed so as to widely reach the toilet while the direction of the discharge port of the dispensing nozzle is rotated by driving. In addition, in the wash starting mode in which the washing water is discharged from the spray nozzle through the bubble generating portion, the spray nozzle, and the like can be washed with the washing water, so that the detergent can be prevented from adhering to the bubble generating portion, the spray nozzle, and the like and from clogging the holes, and the bubble can be stably sprayed.

The sanitary washing device of the present disclosure can form a foam film in a range from the front to the inner surface of the toilet to suppress the adhesion of dirt. In addition, stable foam dispersion can be performed by flushing.

Drawings

Fig. 1 is a perspective view of an external appearance of a sanitary washing apparatus according to embodiment 1 of the present disclosure in a state where the sanitary washing apparatus is installed behind a toilet.

Fig. 2 is a perspective view of the sanitary washing apparatus according to embodiment 1 of the present disclosure in a state where the front body case is removed.

Fig. 3 is a perspective view of the sanitary washing apparatus according to embodiment 1 of the present disclosure in a state where the front body case and the control unit are removed.

Fig. 4 is a perspective view of the upper surface of the operation portion of the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 5 is a perspective view of an external appearance of a remote controller 400 according to embodiment 1 of the present disclosure.

Fig. 6 is a schematic view showing a water circuit configuration of a sanitary washing apparatus according to embodiment 1 of the present disclosure.

Fig. 7 is a perspective view showing an exploded state of a water circuit of the sanitary washing apparatus according to embodiment 1 of the present disclosure.

Fig. 8 is a perspective view showing an assembled state of a water circuit of the sanitary washing apparatus according to embodiment 1 of the present disclosure.

Fig. 9 is a perspective view showing an external appearance of a sub tank according to embodiment 1 of the present disclosure.

Fig. 10 is a cross-sectional view of the subtank according to embodiment 1 of the present disclosure, viewed in a lateral direction.

Fig. 11 is a cross-sectional view of the sub tank according to embodiment 1 of the present disclosure cut along the front-rear direction.

Fig. 12 is a perspective view showing an external appearance of a heat exchanger according to embodiment 1 of the present disclosure.

Fig. 13 is a sectional view of the heat exchanger of embodiment 1 of the present disclosure.

Fig. 14 is a perspective view showing an appearance of a water pump as a water discharge amount changing unit according to embodiment 1 of the present disclosure.

Fig. 15 is a sectional view of a water pump as a water discharge amount changing unit according to embodiment 1 of the present disclosure.

Fig. 16 is a perspective view showing an appearance of the nozzle device according to embodiment 1 of the present disclosure in a housed state.

Fig. 17 is a cross-sectional view taken along line 17-17 of fig. 16.

Fig. 18 is a longitudinal sectional view showing a housed state of the nozzle device according to embodiment 1 of the present disclosure.

Fig. 19 is a detailed sectional view of the B portion shown in fig. 18.

Fig. 20 is a cross-sectional view taken along line 20-20 of fig. 19.

Fig. 21 is a transverse sectional view of a housed state of the nozzle device according to embodiment 1 of the present disclosure.

Fig. 22 is a detailed sectional view of the portion C shown in fig. 21.

Fig. 23 is a longitudinal sectional view showing a hip washing state of the nozzle device according to embodiment 1 of the present disclosure.

Fig. 24 is a detailed sectional view of a portion D shown in fig. 23 of embodiment 1 of the present disclosure.

Fig. 25 is a longitudinal sectional view showing a lower body washing state of the nozzle device according to embodiment 1 of the present disclosure.

Fig. 26 is a detailed sectional view of the portion E shown in fig. 25.

Fig. 27 is a transverse sectional view of the nozzle unit showing a lower body cleaning state of the nozzle unit according to embodiment 1 of the present disclosure.

Fig. 28 is a detailed sectional view of the G portion shown in fig. 27.

Fig. 29 is a timing chart of the cleaning unit at the time of initial use of the sanitary cleaning device according to embodiment 1 of the present disclosure.

Fig. 30 is a timing chart of the cleaning unit in normal use of the sanitary cleaning device according to embodiment 1 of the present disclosure.

Fig. 31 is a perspective view showing an external appearance of a spray nozzle according to embodiment 1 of the present disclosure.

Fig. 32 is a longitudinal sectional view of the dispensing nozzle of embodiment 1 of the present disclosure.

Fig. 33 is a longitudinal sectional view showing an installation state of a spray nozzle of the sanitary washing apparatus according to embodiment 1 of the present disclosure.

Fig. 34 is a front view showing an installation state of a spray nozzle of the sanitary washing apparatus according to embodiment 1 of the present disclosure.

Fig. 35 is a plan view showing the installation position of the spray nozzle and the rotation angle of the discharge port of the spray nozzle in the raw cleaning apparatus according to embodiment 1 of the present disclosure.

Fig. 36 is a graph showing the pump output at each rotation angle of the discharge port of the distribution nozzle according to embodiment 1 of the present disclosure.

Fig. 37 is an explanatory diagram illustrating a discharge operation of the distribution nozzle of embodiment 1 of the present disclosure toward the toilet bowl inner surface.

Fig. 38 is a perspective view of the sanitary washing device according to embodiment 1 of the present disclosure, shown in a see-through sleeve housing.

Fig. 39 is a perspective view of the sanitary washing device according to embodiment 1 of the present disclosure, with the sleeve cover of the sleeve housing removed.

Fig. 40 is a sectional view showing a center portion of a distribution nozzle provided in a rear body case of the sanitary washing device according to embodiment 1 of the present disclosure, cut along a front-rear direction.

Fig. 41 is a front view of a main body of the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 42 is a side view of the main body of the sanitary washing device of embodiment 1 of the present disclosure.

Fig. 43 is a perspective view of a main body fixing plate and a rear main body case of the main body in the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 44 is a partial sectional view showing a state in which the main body is fixed to the main body fixing plate in the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 45 is a timing chart at the time of rotating foam spreading of the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 46 is a time chart of the flushing operation of the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 47 is a timing chart when fixed foam is dispersed in the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 48 is a diagram for explaining the automatic operation selection setting of the foam dispensing of the sanitary washing apparatus according to embodiment 1 of the present disclosure.

Fig. 49 is a diagram for explaining a splash-out suppressing effect of foam scattering of the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 50 is a partial sectional view of a foam tank of the sanitary washing device according to embodiment 1 of the present disclosure.

Fig. 51 is a perspective view of a sanitary washing device according to embodiment 2 of the present disclosure.

Detailed Description

The sanitary washing device according to aspect 1 of the present disclosure includes: a main body provided to a toilet; a foam generating section for generating a cleaning foam; a spray nozzle for spraying washing water or washing foam to an inner surface of the toilet bowl; a spray nozzle driving part for driving and rotating the direction of the spray nozzle; and a control unit for controlling at least the operation of the spray nozzle driving unit. The control unit is configured to be capable of executing a rotating foam spreading command mode in which the cleaning foam is spread into the toilet bowl while being driven to rotate in the direction of the discharge port of the spreading nozzle, and a flushing command mode in which the cleaning water is discharged from the spreading nozzle through the foam generating unit.

With this configuration, when toilet foam (hereinafter referred to as flush foam) is dispensed from the dispensing nozzle to the toilet, the toilet foam can be dispensed so that the flush foam widely reaches the toilet while the toilet foam is driven to rotate in the direction of the discharge port of the dispensing nozzle, and a foam film can be formed in the range from the front to the rear of the toilet to suppress the adhesion of dirt. In addition, by using a wash command mode in which wash water is discharged from the spray nozzles through the bubble generation unit, the spray nozzles, and the like are washed with the wash water, so that the detergent can be prevented from adhering to the bubble generation unit, the spray nozzles, and the like and from clogging, and stable bubble spraying can be performed.

As for the 2 nd aspect, in the 1 st aspect, the distribution nozzle may be provided in the main body such that a rotation axis of a discharge port of the distribution nozzle driven to rotate is inclined in the front-rear direction and the left-right direction. Further, the inclination in the front-rear direction may be such that the lower side of the rotation axis is inclined toward the front side of the toilet bowl, and the inclination in the left-right direction may be such that the lower side of the rotation axis is inclined toward the cleaning nozzle for cleaning the human body.

With this configuration, when toilet foam is dispensed from the dispensing nozzle to the toilet, the direction of the discharge port is higher when the discharge port is directed to the front of the toilet where the distance from the discharge port of the dispensing nozzle to the dispensing position is longer, and the direction of the discharge port is lower when the discharge port is directed to the rear of the toilet where the distance from the discharge port of the dispensing nozzle to the dispensing position is shorter. Thus, the height of the discharge port of the spray nozzle can be changed with the change of the distance from the discharge port of the spray nozzle to the inner surface of the toilet bowl, and the cleansing foam can be sprayed, so that the foam film can be formed in the range from the front to the rear of the toilet bowl to suppress the adhesion of the dirt.

As for the 3 rd aspect, in the 1 st or 2 nd aspect, the control portion may be configured to disperse the rotating foam by at least one reciprocating rotation operation when the rotating foam is dispersed from the dispersion nozzle to the toilet bowl, and in the reciprocating rotation operation, the dispersion nozzle driving portion is rotated forward so that the direction of the discharge port of the dispersion nozzle passes from the rear of the toilet bowl to the rear of the toilet bowl through the front of the toilet bowl, and the dispersion nozzle driving portion is rotated backward so that the direction of the discharge port of the dispersion nozzle passes from the rear of the toilet bowl to the front of the toilet bowl and returns to the rear of the toilet bowl.

With this configuration, when the rotating foam for spraying the cleansing foam from the spraying nozzle to the toilet bowl is to be sprayed, the control unit performs at least one reciprocating rotational drive in which the spraying nozzle driving unit is rotated forward to cause the direction of the spraying nozzle to pass from the rear of the toilet bowl to the rear of the toilet bowl through the front of the toilet bowl, and then the spraying nozzle driving unit is rotated backward to cause the direction of the spraying nozzle to pass from the rear of the toilet bowl to the front of the toilet bowl and return to the rear of the toilet bowl, and the output of the water spray amount changing unit is controlled to cause the cleansing foam to reach the vicinity of the rim of the toilet bowl. Thus, the cleansing foam can be spread over substantially the entire circumference of the inner surface of the toilet bowl, and the foam film can be formed in the range from the front of the toilet bowl to the rear of the inner surface of the toilet bowl, thereby suppressing the adhesion of dirt.

The 4 th aspect may further include a human body detection sensor for detecting that a user enters or leaves the toilet room in any one of the 1 st to 3 rd aspects. The control unit may be configured to dispense the rotary foam to the toilet bowl when the human body detection sensor detects that the user enters the toilet room.

Thus, when the human body detection sensor detects that the user has entered the toilet room, the rotating foam spreading device can spread the cleansing foam on the inner surface of the toilet bowl while driving the spraying nozzle to rotate back and forth at least once in the direction of the spraying port, and can reliably form a foam film on the inner surface of the toilet bowl before use, thereby suppressing the adhesion of dirt.

The 5 th aspect may further include a discharge rate changing unit controlled by the control unit and an on-off valve controlled by the control unit in any one of the 1 st to 4 th aspects. Also, the foam generating part may include: a foam tank to which washing water is supplied by the water spray amount changing unit by opening the open/close valve; a detergent tank; a detergent pump for supplying detergent of the detergent tank to the bubble tank; and an air pump for supplying air to the foam tank. And may also be of the following construction: the washing water or the washing foam of the foam tank is sprayed from the spray nozzle.

Thus, not only water or warm water but also cleansing foam containing a detergent is ejected onto the surface of the cleansing nozzle or the inner surface of the toilet bowl, thereby improving the cleansing effect and the effect of inhibiting the adhesion of dirt. Further, the use of the cleansing foam containing a detergent can suppress unpleasant odor and improve the visual feeling of cleanness.

As for the 6 th aspect, in the 5 th aspect, the control unit may be configured as follows: in the flushing starting mode, the opening and closing valve is opened with the detergent pump of the bubble generating portion stopped, and the washing water is supplied to the bubble tank by the water spray amount changing portion, thereby discharging the washing water from the spray nozzle.

Thus, the path from the foam tank to the spray nozzle is flushed with the washing water, and the path and the spray nozzle can be prevented from being clogged due to the adhesion of the detergent and from rotating due to the adhesion of the detergent. In addition, the inner surface of the toilet bowl can be flushed.

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

(embodiment 1)

Fig. 1 is a perspective view of an external appearance of a sanitary washing apparatus 100 according to embodiment 1 of the present disclosure in a state of being installed in a toilet stool 110, fig. 2 is a perspective view of a state in which a front body case of a main body 200 of the sanitary washing apparatus 100 is removed, and fig. 3 is a perspective view of a state in which the front body case of the main body 200 of the sanitary washing apparatus 100 and a control unit 130 are removed. Fig. 4 is a perspective view of the upper surface of the operation unit 210 of the sanitary washing device 100 according to embodiment 1 of the present disclosure, and fig. 5 is a perspective view of the external appearance of the remote controller 400 according to embodiment 1 of the present disclosure.

Integral structure of < 1 > sanitary cleaning device

As shown in fig. 1, the sanitary washing apparatus 100 is configured with a main body 200, a toilet seat 300, a toilet lid 320, a remote controller 400, and a human body detection sensor 450 as main components. The main body 200, the toilet seat 300, and the toilet cover 320 are integrally formed and provided on the upper surface of the toilet 110.

In the present embodiment, the arrangement of the components will be described with the installation side of the main body 200 being the rear side, the installation side of the toilet seat 300 being the front side, the right side when viewed from the rear side to the front side being the right side, and the left side when viewed from the rear side to the front side being the left side in the sanitary washing apparatus 100.

A protruding operation portion 210 is integrally provided on a side portion of the main body 200, and the toilet seat 300 and the toilet cover 320 are openably and closably attached to a front portion of the main body 200 via a toilet cover rotating mechanism 360 (see fig. 2). The toilet cover rotating mechanism 360 includes a dc motor and a plurality of gears, and can open and close the toilet seat 300 and the toilet cover 320 independently or simultaneously.

As shown in fig. 1, in a state where the toilet lid 320 is opened, the toilet lid 320 stands up so as to be positioned at the rearmost part of the sanitary washing apparatus 100. When the toilet cover 320 is closed, the upper surface of the toilet seat 300 is covered.

The toilet seat 300 includes a seat heater (not shown) for heating a seating surface, and heats the seating surface of the toilet seat to a comfortable temperature.

Further, a seating sensor 330, which is a seating detection unit for detecting a human body seated on the toilet seat 300, is provided in a bearing portion of the main body 200 for supporting the rotating shaft of the toilet seat 300. The seating sensor 330 is a weight-type seating sensor, and detects whether or not a user is seated on the seating surface of the toilet seat 300 by opening and closing a switch by a change in weight caused by the user seating on the toilet seat 300.

The main body 200 is composed of a sub tank 600, a heat exchanger 700, a nozzle device 800, and the like (see fig. 3). The main body 200 is provided with a hip washing nozzle 831 which is a washing nozzle for washing a part of a human body, a spray nozzle 550 for spraying washing water or washing foam to an inner surface of a toilet, a deodorizing device 120 (see fig. 2) for deodorizing odor at the time of defecation, a control unit 130 (see fig. 2) for controlling each function of the sanitary washing device 100, and the like.

As shown in fig. 2, a nozzle device 800, which is a main component of the cleansing unit 500, is provided in the center of the interior of the main body 200, a distribution nozzle 550 is provided on the right side of the nozzle device 800 and at a position in front of the main body 200 that is placed on the toilet 110 and is fixedly provided in the toilet 110, and a deodorization device 12 is provided on the left side of the nozzle device 800. Further, a toilet cover turning mechanism 360 for driving the toilet seat 300 and the toilet cover 320 to open and close them is provided on the left side of the main body 200.

As shown in fig. 3, the sub tank 600 and the electromagnetic water stop valve 514 of the cleaning unit 500 are provided at the front side, the heat exchanger 700 is provided at the rear side, and the water pump 516 serving as a water injection amount changing unit is provided at the rear side of the heat exchanger 700, on the right side of the nozzle device 800. As shown in fig. 2, the control unit 130 is provided above the cleaning unit 500.

The sleeve housing 250 is integrally provided on the right side portion of the main body 200 so as to protrude forward, and the operation portion 210 is disposed on the upper portion of the sleeve housing 250. As shown in fig. 4, the operation unit 210 is provided with a plurality of switches and display lamps (lamps) for operating and setting the respective functions of the sanitary washing apparatus 100.

An operation board (not shown) is provided inside the operation unit 210. The operation substrate is provided with a plurality of tactile switches and a plurality of LEDs, and the tactile switches can be pressed and the LEDs can be visually recognized by the switch label attached to the upper surface of the operation portion 210.

An infrared receiving unit 211 (fig. 4) for receiving an infrared signal transmitted from a remote controller 400 having a human body detection sensor 450 is disposed behind the upper surface of the operation unit 210.

The switches provided in the operation unit 210 include a plurality of operation switches 220 for operating the washing operation and a plurality of setting switches 230 for setting various functions. Further, as the display lamp (lamp), a plurality of LEDs for displaying the setting state are provided.

The operation switch 220 includes a hip washing switch 221 which is used as an auxiliary in the case where the battery of the remote controller 400 is used up, a washing switch 223 which will be described later and is used to wash a path from the bubble tank 532 (see fig. 6) to the discharge port 550u (see fig. 31) of the spray nozzle 550 with washing water.

The setting switch 230 includes a warm water temperature switch 231 for setting the temperature of the washing water, a toilet seat temperature switch for setting the temperature of the toilet seat, an 8-hour off switch for stopping the heat preservation of the toilet seat 300 after continuing for 8 hours from the setting, a time zone for automatically learning not to use the sanitary washing apparatus 100, and a power saving switch for saving power by lowering the heat preservation temperature of the toilet seat 300 during the time zone for not using. The setting switch 230 is also provided with a toilet lid automatic opening/closing switch for setting the automatic opening/closing operation of the toilet seat 300 and the toilet lid 320.

Further, an automatic selection setting switch 236 for selecting a foam application operation, a splash suppression operation, or a foam periodic operation described later is provided. The foam coating run was the following run: when the human body detection sensor 450 detects a human body, the spray nozzle 550 is automatically rotated and the rotating foam is sprayed to a wide area of the inner periphery of the toilet to prevent the adhesion of the toilet dirt. The splash suppression operation is an operation in which: when the user operates the manual splash-out suppressing switch 434 of the remote controller 400, the user drives the spray nozzle 550 to rotate the direction of the discharge port 550u to the rear of the toilet, and then quickly and largely sprays foam in the direction of the fixed stop, thereby forming foam on the upper part of the water surface in the toilet and preventing the urine from jumping and splashing. The foam regular operation is an operation in which: foam is automatically and periodically dispersed to the toilet bowl even during non-use, so that foam is kept on the upper part of the water surface in the toilet bowl, and waterline stains are suppressed.

As shown in fig. 38, a bubble tank 532 for generating a bubble generating portion 560 (fig. 6) of a washing bubble, a detergent tank 533, a detergent pump 534, and an air pump 535 are provided inside the cuff housing 250 having the operation portion 210 at the upper portion.

The detergent tank 533 including the detergent inlet 537 provided with a filter at the upper side is disposed at the forefront portion of the cuff housing 250, which is a position ahead of the operation portion 210. A detergent liquid level confirmation window 216, through which the detergent liquid level position of the detergent tank 533 can be visually confirmed, is provided on the front surface of the sleeve housing 250.

Fig. 39 is a perspective view showing a state in which the openable and closable sleeve cover 217 is removed when detergent is injected into the detergent tank 533 shown in fig. 38 and when the detergent tank 533 is attached and detached.

Many operations of the sanitary washing apparatus 100 are performed by using the remote controller 400 which is configured independently of the main body 200. The remote controller 400 is mounted on a wall surface of a toilet or the like to facilitate the operation of a user seated on the toilet seat 300.

As shown in fig. 5, the remote controller 400 is formed in a thin rectangular parallelepiped shape as a whole, and a plurality of switches and indicator lamps are provided on the upper surface and the front surface of a box-shaped controller main body 401 molded from a resin material. Further, a transmission unit 402 for transmitting an operation signal of the remote controller 400 to the main body 200 by infrared rays is disposed at an upper corner of the controller main body 401.

A control board (not shown) for implementing a control function of the remote controller 400 and a battery (not shown) as a power source of the remote controller 400 are built in the controller main body 401.

A human body detection sensor 450 is formed at an upper portion of the center of the front surface of the controller main body 401. 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 are provided below the human body detection sensor 450, and the user can arbitrarily open and close the toilet seat 300 and the toilet lid 320 by the switch operation.

The open state of the toilet seat 300 is a state in which the toilet seat 300 is substantially vertically raised as in the case of urination by a male, and the closed state of the toilet seat 300 is a state in which the toilet seat 300 is substantially parallel to the upper edge surface of the toilet 110. Further, whether the toilet seat 300 is in the opened state or the closed state can be detected by a signal from a toilet seat opening/closing sensor 331 (fig. 1) as a toilet seat opening/closing detection unit.

A hip-washing switch 410 for starting hip-washing, a movable washing switch 413 for periodically moving a washing position back and forth during hip-washing and lower body washing to enable a wide range of washing, and a rhythm washing switch 414 for periodically changing washing intensity during hip-washing are provided on the right side of the front surface of the controller main body 401 facing the front surface. Further, on the right side of the front surface of the controller main body 401 facing the front surface, a washing intensity switch 415 for adjusting washing intensity at the time of hip washing and lower body washing by two switches, a washing position switch 416 for adjusting washing positions at the time of hip washing and lower body washing by two switches, a hip drying switch 431, and a power deodorization switch 432 are arranged.

A lower body washing switch 411 for starting lower body washing for washing a female private part, a stop switch 412 for stopping hip washing and lower body washing, a manual foam application switch 433 for rotating the spray nozzle 550 and spraying a rotating foam to a wide area of the inner periphery of the toilet bowl, and a manual splash-out suppressing switch 434 for fixing the spray nozzle 550 and spraying a foam are arranged on the left side of the front surface of the controller main body 401 facing the front surface. On the left side of the front surface of the controller main body 401 facing the front surface, a warm water temperature switch 435 for setting the temperature of the washing water, a toilet seat temperature switch 436 for setting the temperature of the toilet seat, and an eight-hour off switch 437 for stopping the warm keeping of the toilet seat 300 after eight hours from the setting are arranged. Further, a power saving switch 438 for automatically learning a time zone when the sanitary washing apparatus 100 is not in use and saving power by lowering the warm temperature of the toilet seat 300 in the time zone when it is not in use, a toilet seat cover automatic opening/closing switch 439 for setting an automatic opening/closing operation of the toilet seat 300 and the toilet cover 320, a nozzle cleaning switch 430 for cleaning the hip cleaning nozzle 831 and the bidet cleaning nozzle 832, which are cleaning nozzles, and the like are arranged.

Further, an LED intensity indicator lamp 421 that indicates the cleaning intensity in five stages is disposed between the two cleaning intensity switches 415, and a position indicator lamp 422 that indicates the cleaning position in five stages is disposed between the two cleaning position switches 416.

The open state of the toilet seat 300 is a state in which the toilet seat 300 is substantially vertically raised as in the case of urination by a male, and the closed state of the toilet seat 300 is a state in which the toilet seat 300 is substantially parallel to the upper edge surface of the toilet 110. Further, whether the toilet seat is in the opened state or the closed state can be detected by a signal from a toilet seat opening/closing sensor 331 (fig. 1) as a toilet seat opening/closing detection unit.

< 2 > water loop structure of sanitary cleaning device

Fig. 6 is a schematic diagram showing a water circuit configuration of the sanitary washing apparatus 100 according to embodiment 1 of the present disclosure.

The main body 200 has a washing part 500 for washing a user's private part inside. The washing part 500 includes a nozzle device 800 for spraying washing water and a series of washing water supply flow paths 690 for supplying the washing water from the water supply connection port 510 to the nozzle device 800.

As shown in fig. 6, a water supply connection port 510, a filter valve 511, a check valve 512, a constant flow valve 513, an electromagnetic water stop valve 514, a relief valve 515, a sub tank 600, a heat exchanger 700, a buffer tank 750, a water pump 516 serving as a water discharge amount changing unit, and a throttle valve 517 are provided in this order in a wash water supply flow path 690, and the wash water supply flow path 690 is connected to the nozzle device 800.

A water supply connection port 510 connected to a tap water pipe is disposed at a lower right side of the main body 200, and a strainer valve 511 for preventing inflow of garbage contained in the tap water and a check valve 512 for preventing backflow of water stored in the sub tank 600 into the tap water pipe are incorporated in the water supply connection port 510.

Downstream of the check valve 512, a relief valve 515, a constant flow valve 513 for keeping the amount of the washing water flowing through the flow path constant, and an electromagnetic water stop valve 514 for electrically opening and closing the flow path are formed integrally.

A sub tank 600 having an atmosphere communication port, a heat exchanger 700 for instantly heating the washing water, and a buffer tank 750 for making the temperature of the warm water heated by the heat exchanger 700 uniform are connected to a downstream side of the electromagnetic water stop valve 514.

A water pump 516 as a water spray amount changing unit is connected to the downstream of the buffer tank 750. A nozzle device 800 is connected downstream of the water pump 516 serving as a water discharge amount changing unit via a flow control valve 517, and a hip washing nozzle 831, a bidet washing nozzle 832, and a nozzle cleaning unit 833 of the nozzle device 800 are connected to each port of the flow control valve 517.

A branch flow path 530 of the wash water supply flow path 690, which branches between the water pump 516 as a water spray amount changing unit and the flow control valve 517, is connected to the bubble tank 532 via a check valve 531 so as to supply wash water to the bubble tank 532. A distribution nozzle 550 driven to rotate by a distribution nozzle driving unit 550a is connected to the downstream side of the foam tank 532. A detergent tank 533 for supplying detergent and a detergent pump 534 are connected to the bubble tank 532, and an air pump 535 for supplying air to the bubble tank 532 to generate cleaning bubbles is provided.

The bubble generating part 560 includes an air pump 535, a detergent pump 534, a detergent tank 533, a bubble tank 532, and a check valve 531.

In fig. 6, only one check valve 531 is shown in the branch flow path 530 branching between the water pump 516 and the flow control valve 517 as the water discharge amount changing unit, but actually, another rubber check valve 531b (duckbill type) is provided in addition to the check valve 531 in fig. 6 at a foam tank water inlet portion 532a (see fig. 50) where wash water enters the foam tank 532 from the branch flow path 530. By providing a plurality of check valves on the upstream side of the foam tank 532 from which water is introduced, a structure capable of preventing backflow in a double safety manner can be realized so that the detergent-containing liquid and the cleaning foam in the foam tank 532 do not flow backward toward the city water side.

In addition, the broken line in fig. 6 indicates the electrical connection with the control unit 130.

As shown in fig. 7 and 8, among the components constituting the cleaning unit 500, the water supply connection port 510, the strainer valve 511, the check valve 512, the constant flow valve 513, the electromagnetic water stop valve 514, the relief valve 515, the sub tank 600, the heat exchanger 700, the buffer tank 750, and the water pump 516 serving as a water discharge amount changing unit are integrally formed by being assembled to the chassis 501 molded from a resin material, and are assembled to the rear body case 201 of the main body 200 (fig. 2).

As shown in fig. 7, the strainer valve 511 and the check valve 512 are integrally assembled to the water supply connection port 510, and the constant flow valve 513 and the relief valve 515 are integrally assembled to the electromagnetic water stop valve 514. Further, the buffer tank 750 is integrally formed with the heat exchanger 700.

The water supply connection port 510 and the electromagnetic water stop valve 514, the electromagnetic water stop valve 514 and the subtank 600, and the subtank 600 and the heat exchanger 700 are directly connected to each other through an O-ring as a sealing member without a connection pipe or the like. Further, the members constituting the water circuit are provided so as to be fixed to predetermined positions of the base frame 501.

By adopting such a structure, the liquid-tightness of the structure can be improved, and the arrangement accuracy of the members can be improved. In particular, by improving the arrangement accuracy between the subtank 600 and the heat exchanger 700, the control accuracy of the flow rate of the washing water can be improved, and the performance and the control accuracy of the washing unit 500 can be improved.

The water pump 516 serving as a water discharge amount changing unit is a piston pump serving as a positive displacement pump, and as shown in fig. 14 and 15, has a substantially L-shaped outer shape in front view, and includes a substantially cylindrical (including cylindrical) motor portion 516a, a link mechanism portion 516b for converting a rotational motion of the motor into a reciprocating motion, and a piston portion 516c driven by the reciprocating motion of the link mechanism portion 516 b. A water suction port 516d and a discharge port 516e are provided as connection ports on the outer surface of the piston portion 516 c.

The above structure is configured as follows: when the water pump 516 serving as the water discharge amount changing unit is driven, vibration generated in the motor 516a that performs only rotational motion is smaller than that generated in the link mechanism portion 516b and the piston portion 516c that perform reciprocating motion.

When the motor 516a is driven, the piston 516c starts reciprocating, and the water suction port 516d sucks the washing water and the water discharge port 516e discharges the washing water. The discharged washing water becomes a water flow having appropriate pulsation according to the reciprocation of the piston portion 516 c.

In the above configuration, the outer periphery of the substantially cylindrical motor portion 516a of the water pump 516 serving as the water discharge amount changing portion is surrounded by a cushioning member (not shown) made of a foamed resin having elasticity. The motor 516a is inserted into a substantially cylindrical water pump installation portion 501a (fig. 7) provided at the rear of the chassis 501. Thereby, the water pump 516 is supported, and the link mechanism portion 516b and the piston portion 516c are suspended to hang downward.

The water pump installation portion 501a shown in fig. 7 is formed with a small thickness and is formed above a rib-shaped leg portion 501b rising from the bottom surface of the base frame 501. By forming the water pump installation portion 501a with a thin wall thickness, the effect of absorbing the vibration of the water pump 516 serving as the water discharge amount changing portion due to the elasticity of the resin can be obtained.

As shown in fig. 12 and 13, the hot water outlet 712, which is a connection port of the heat exchanger 700 in which the surge tank 750 is integrally formed, and the water suction port 516d (fig. 14), which is a connection port of the water pump 516 serving as a water discharge amount changing unit, are connected by a soft resin connection pipe.

As described above, the motor 516a with small vibration is provided in the water pump installation portion 501a formed with a thin wall thickness of the base frame 501 via the buffer member, and the link mechanism portion 516b and the piston portion 516c with large vibration are suspended in a free state. The buffer tank 750 and the water pump 516 are connected by a soft resin connection pipe 502 (see fig. 8). With this configuration, it is possible to suppress transmission of vibration generated when the water pump 516 serving as the water discharge amount changing unit is driven to the base frame 501, other members, and the main body 200, and to obtain an effect of improving comfort and durability of the sanitary washing apparatus 100.

In particular, the water pump 516 serving as the water discharge amount changing unit is supported by two different materials, i.e., a cushioning member made of foamed resin and a resin having elasticity forming the water pump installation portion 501 a. This allows the absorption of vibrations having a wide range of frequencies, and effectively suppresses the transmission of vibrations to the main body.

< 3 > structure of auxiliary water tank

Fig. 9 is a perspective view showing an external appearance of a subtank 600 according to embodiment 1 of the present disclosure, fig. 10 is a cross-sectional view of the subtank 600 as viewed in a lateral direction, and fig. 11 is a cross-sectional view of the subtank 600 as cut in a front-rear direction.

As shown in fig. 9, the sub-tank 600 includes a tank main body 610 molded of a resin material, a water level detection sensor 620 (fig. 6) for detecting a water level of the washing water stored in the tank main body 610, and an inlet water temperature sensor 630 formed of a thermistor as a water temperature detection unit for detecting a temperature of the washing water supplied into the tank main body 610.

The tank main body 610 includes three members, a front tank 611 constituting a front wall, two side walls, a bottom surface, and a top surface of the tank, a rear tank 612 constituting a rear wall of the tank, and an atmosphere opening portion 613 disposed on the top surface of the tank main body 610. The overall shape of the tank main body 610 is formed by a plurality of flat surfaces including a front wall, a rear wall, two side walls, a bottom surface, and a top surface, and has a substantially rectangular shape in plan view. The front wall has an inclined portion that recedes from halfway from the lower portion toward the upper portion, and is formed in a substantially trapezoidal shape in which the upper portion is narrower than the lower portion in a side view, and the cross-sectional area of the upper portion of the tank main body 610 is smaller than that of the lower portion.

A water inlet 601 is provided at a lower portion of one side wall of the tank main body 610, a water outlet 602 is provided at a lower portion of a rear wall of the tank main body 610, and an atmosphere opening port 603 for communicating the inside and the outside of the tank main body 610 is provided at an atmosphere opening portion 613 disposed at a top surface of the tank main body 610. By providing the atmosphere opening port 603, the air stored in the tank main body 610 can be released to the outside, and the internal pressure of the tank main body 610 can be maintained at atmospheric pressure at all times.

By always maintaining the inside of the sub-tank 600 at atmospheric pressure, the flow path from the downstream of the sub-tank 600 to the water suction port 516d of the water pump 516 serving as a water discharge amount changing unit is also maintained at atmospheric pressure. Therefore, the water pump 516 serving as the water discharge amount changing unit can supply water without being affected by the water pressure fluctuation. This enables a stable pump function to be exhibited.

A buffer portion 613a (fig. 10) having a large cross-sectional area of the flow path is formed in the flow path communicating with the atmosphere opening port 603 of the atmosphere opening portion 613, and has the following functions: when the washing water tries to suddenly flow out from the atmosphere opening port 603 with bubbles, the washing water is temporarily stored in the buffer portion 613a, thereby preventing the washing water from flowing out from the atmosphere opening port 603.

A partition wall 614 is provided inside the tank main body 610, and the inside of the tank main body 610 is divided into two tanks, a water inlet tank 615 and a storage tank 616 by the partition wall 614. An inlet 601 is provided near the bottom of the side of the inlet tank 615, and an outlet 602 is provided near the bottom of the rear wall of the storage tank 616.

By providing the partition wall 614 to form the water inlet tank 615 and the reservoir tank 616, when the cleaning water flowing in from the water inlet 601 contains air, the air is released from the upper portion of the water inlet tank 615 to the outside through the atmosphere opening port 603. Therefore, only the cleaning water containing no air can be flowed into the storage tank 616.

A barrier 617 (fig. 10) is provided above the water inlet tank 615 so as to be interposed between the upper surface opening 615a of the water inlet tank 615 and the atmosphere opening 613 and to protrude from the side wall of the tank main body 610 in a substantially horizontal direction (including the horizontal direction). The barrier 617 has a size covering the entire upper surface opening of the water inlet groove 615.

In addition, a plurality of flow straightening ribs 618 that alternately protrude in a substantially horizontal direction (including the horizontal direction) are formed on the side wall of the tank main body 610 and the surfaces of the partition walls 614 that face each other inside the water inlet tank 615.

The washing water flowing in from the water inlet 601 first flows into the lower portion of the water inlet groove 615, and the flow direction is changed by the flow straightening rib 618, and the washing water is raised in the water inlet groove 615. At this time, when the pressure of the washing water flowing in from the water inlet 601 is high or when the flow is extremely disturbed due to the washing water containing a large amount of air, the flow is properly rectified by the rectifying ribs 618 and the air contained in the washing water is separated by the vortex generated on the downstream side of the rectifying ribs 618.

The washing water from which the air has been separated and which has risen in the water inlet tank 615 flows over the upper end of the partition wall 614 and flows into the storage tank 616 to be stored therein.

In this case, even when the pressure of the washing water flowing in from the inlet 601 is high or the flow of the washing water is greatly disturbed due to a large amount of air contained therein, since the upward flow of the washing water is suppressed by the barrier 617, the washing water does not directly reach the atmosphere opening portion 613, and thus the washing water can be prevented from flowing out to the outside of the sub-tank 600 through the atmosphere opening 603.

As described above, while the washing water flowing in from the water inlet 601 rises in the water inlet tank 615, air contained in the washing water is separated, and the separated air is discharged from the atmosphere opening 603 to the outside of the tank main body 610. Thus, the air-free washing water is stored in the storage tank 616 and supplied from the water outlet 602 to the heat exchanger 700.

If air is mixed into the wash water supplied from the subtank 600 to the heat exchanger 700, air bubbles may be generated inside the heat exchanger 700, which may cause an abnormal increase in the temperature inside the heat exchanger 700 and damage to the heat exchanger 700. In the present embodiment, the partition wall 614 is provided to prevent air from being mixed in, thereby providing an effect of preventing damage to the heat exchanger 700.

As shown in fig. 11, the water level detection sensor 620 includes a common electrode 621 as a common electrode and a plurality of water level electrodes 622 provided for each level of water level. In the present embodiment, the water level detection sensor 620 includes one common electrode 621 and two water level electrodes 622.

A common electrode 621 is disposed on the inner surface of the lower portion of the front wall of the tank main body 610, and a water level electrode 622 is disposed on the inner surface of the rear wall of the tank main body 610. The water level electrode 622 includes an upper limit electrode 623 disposed at an upper portion and a lower limit electrode 624 disposed at a lower portion. The common electrode 621 is provided at a position lower than the lower limit electrode 624, and the common electrode 621 is always immersed in water in a normal use state.

By providing the common electrode 621 and the upper limit electrode 623 and the lower limit electrode 624 as the water level electrode 622 on different surfaces, the following effects can be obtained: the residual water adhering to the inner surface of the tank main body 610 is suppressed from being erroneously detected as the stored water.

A dc voltage is applied between the common electrode 621 and the water level electrode 622, and the water level is detected based on the principle that the voltage changes depending on whether or not the water level electrode 622 is immersed in water. That is, when the washing water flows into the storage tank 616, the water level rises, and the lower limit electrode 624 and the upper limit electrode 623 (or only the lower limit electrode 624) are immersed in the water, the voltage between the common electrode 621 and the lower limit electrode 624 and the upper limit electrode 623 is lowered, and the water level is detected by the controller 130.

The upper limit electrode 623 is used for detection of the upper limit water level, and the lower limit electrode 624 is used for detection of the lower limit water level. The upper limit electrode 623 is provided at a position lower than the atmosphere opening port 603, and thereby, the washing water can be prevented from flowing out from the atmosphere opening port 603. Further, the lower limit electrode 624 is provided above the water outlet 602, and thus, air can be prevented from flowing into the heat exchanger 700.

< 4 > structure of heat exchanger

Fig. 12 is a perspective view showing an external appearance of a heat exchanger 700 according to embodiment 1 of the present disclosure, and fig. 13 is a sectional view of the heat exchanger 700.

In the heat exchanger 700 of the present embodiment, the buffer tank 750 is integrally formed, and the buffer tank 750 is provided above the heat exchanger 700.

As shown in fig. 12, the heat exchanger 700 has a substantially rectangular flat plate shape when viewed from the front, and its main constituent members include a housing 701 molded from a reinforced ABS resin obtained by mixing glass fibers with an ABS resin, a ceramic flat plate-shaped heater 702 (fig. 13), and a hot water discharge member 703.

The housing 701 includes a front surface member 710 constituting a front surface portion and a back surface member 720 constituting a back surface portion, and a flat plate-like heater 702 is provided in a space formed between the front surface member 710 and the back surface member 720. The gap formed between the front surface member 710 and the flat plate-like heater 702 at the position facing each other and the gap formed between the back surface member 720 and the flat plate-like heater 702 at the position facing each other are used as the heating flow path 715, and the temperature of the washing water flowing through the heating flow path 715 is instantaneously raised by the flat plate-like heater 702.

The heat exchanger 700 has a water inlet 711 as a connection port on the right side of the lower end of the front surface member 710, and a hot water outlet 712 as a connection port on the hot water outlet member 703 provided on the upper end of the right side surface of the front surface member 710.

As shown in fig. 13, the inlet flow path 713 connected to the inlet port 711 is provided over substantially the entire width of the lower end of the housing 701. A plurality of slits 714 are provided over the entire width of the upper surface of the inlet flow channel 713, and the washing water flowing into the inlet flow channel 713 flows into the heating flow channel 715 through the slits 714. The slits 714 allow washing water to uniformly flow in over the entire width of the heating flow path 715.

A partition rib 716 is provided at the upper end of the heating flow path 715, and a buffer water tank 750 is provided above the partition rib 716. A plurality of water passage holes 717 are provided in substantially the entire width of the partition rib 716, and the washing water heated by the heating flow path 715 flows into the buffer tank 750 through the water passage holes 717.

The buffer tank 750 is provided with projections 718 having a substantially semicircular cross-sectional shape (including a semicircular shape) at intervals substantially over the entire width. The flow of the washing water flowing toward the hot water outlet 712 in the buffer water tank 750 is disturbed by the protrusion 718, whereby the washing water is homogenized, so that the temperature unevenness (unevenness) of the washing water is eliminated, and the washing water having a uniform temperature flows out from the hot water outlet 712.

The hot water outlet member 703 is provided with two thermistors, one of which is a hot water outlet temperature sensor 730 for detecting the hot water outlet temperature of the washing water, and the other of which is an excessive temperature increase sensor 731 for detecting the excessive temperature increase temperature of the heat exchanger 700.

< 5 > structure of nozzle device

Fig. 16 is a perspective view showing a storage state of a nozzle device 800 according to embodiment 1 of the present disclosure, fig. 17 is a sectional view taken along line 17-17 of fig. 16, fig. 18 is a longitudinal sectional view showing the storage state of the nozzle device 800, and fig. 19 is a detailed sectional view of a portion B shown in fig. 18. Fig. 20 is a cross-sectional view taken along line 20-20 of fig. 19, fig. 21 is a transverse cross-sectional view of a housed state of the nozzle device 800 according to embodiment 1 of the present disclosure, fig. 22 is a detailed cross-sectional view of a portion C shown in fig. 21, and fig. 23 is a longitudinal cross-sectional view showing a hip washing state of the nozzle device 800.

Fig. 24 is a detailed sectional view of a portion D shown in fig. 23 of embodiment 1 of the present disclosure, fig. 25 is a longitudinal sectional view showing a lower body cleaning state of a nozzle device 800 of embodiment 1 of the present disclosure, fig. 26 is a detailed sectional view of a portion E shown in fig. 25, fig. 27 is a lateral sectional view of a nozzle portion 820 showing a lower body cleaning state of the nozzle device 800, and fig. 28 is a detailed sectional view of a portion G shown in fig. 27.

As shown in fig. 16, the nozzle device 800 includes a substantially triangular frame-shaped support portion 810 molded from a resin material, a nozzle portion 820 that moves forward and backward along the support portion 810, a cleaning nozzle driving portion 860 for driving the forward and backward movement of the nozzle portion 820, and a flow regulating valve 517 for switching supply of cleaning water to the nozzle portion 820.

In the following description, the arrangement of the components will be described with the storage direction of the nozzle 820 being rearward, the advancing direction of the nozzle 820 being forward, the right side when viewed from the rear to the front being rightward, and the left side when viewed from the rear to the front being leftward.

The support portion 810 is formed with an inclined portion 812 formed in a substantially triangular frame shape in side view and descending from the rear portion toward the front portion with respect to a substantially horizontal bottom portion 811, and a vertical portion 813 (fig. 18) joining the rear ends of the inclined portion 812 and the bottom portion 811.

A guide rail 814 for guiding the forward and backward movement of the nozzle portion 820 and a rack guide 815 (fig. 17) for guiding a flexible rack 861 (fig. 23) of the cleaning nozzle driving portion 860 are formed substantially over the entire length of the inclined portion 812. Further, a substantially cylindrical clasping portion 816 that supports the nozzle portion 820 so as to surround the nozzle portion 820 is integrally formed below the front end of the inclined portion 812.

As shown in fig. 16 and 17, the guide rail 814 for guiding the nozzle portion 820 has a substantially T-shaped cross section. Further, the rack guide 815 for guiding the flexible rack 861 has a substantially japanese katakana コ -shaped cross section with one side surface open, and guides the flexible rack 861 so as to restrict the upper and lower surfaces and one side surface of the flexible rack 861.

The rack guide 815 is also continuously formed at the rear longitudinal side portion 813 and the bottom side portion 811 of the support portion 810 after the inclined portion 812. The corner portion between the inclined portion 812 and the vertical side portion 813 and the corner portion between the vertical side portion 813 and the bottom side portion 811 are connected in an arc shape. The rack guide 815 formed on each of the vertical side portion 813 and the bottom side portion 811 has a cross-sectional shape of substantially japanese kana コ, but the side surface opened in the inclined portion 812 is located on the left side, and the side surface opened in the vertical side portion 813 and the bottom side portion 811 is located on the opposite right side. The open surfaces of the rack guide 815 of the vertical side portion 813 and the bottom side portion 811 are closed by a support portion cover as an independent member.

The cleaning nozzle driving unit 860 for advancing and retracting the nozzle 820 along the guide rail 814 includes a flexible rack 861 coupled to the nozzle 820, a pinion 862 (fig. 17) engaged with the flexible rack 861, and a driving motor 863 (fig. 16) for driving and rotating the pinion 862.

The drive motor 863 is a stepping motor, and controls a rotation angle by a pulse signal. The flexible rack 861 is driven by the pinion 862 by rotating the drive motor 863.

A gap is provided between the inner peripheral surface of the clasping portion 816 of the support portion 810 and the outer peripheral surface of the nozzle portion 820, and the structure is as follows: the washing water ejected from the nozzle portion 820 flows into a gap formed between the inner peripheral surface of the clasping portion 816 and the outer peripheral surface of the nozzle portion 820, and the outer peripheral surface of the nozzle portion 820 is washed.

Further, a nozzle cover 801 that is opened and closed by the advance and retreat of the nozzle 820 is openably and closably provided in front of the clasping portion 816, and the nozzle cover 801 is closed in the state where the nozzle 820 is accommodated, whereby the nozzle 820 can be prevented from being contaminated with stool or the like.

A water supply pipe (not shown) connected to the washing water supply unit and a water supply joint 817 for connecting the connection pipe 802 for supplying the washing water from the support unit 810 to the flow control valve 517 are formed at the bottom 811 of the support unit 810.

The nozzle portion 820 includes a rod-shaped nozzle body 830 molded from a resin material, a substantially cylindrical nozzle cover 840 covering the entire nozzle body 830, and a coupling portion 850 (fig. 21) for pulling the nozzle cover 840 by the nozzle body 830.

The nozzle body 830 includes a buttocks washing nozzle 831 for washing a private part, a bidet washing nozzle 832 for washing a female private part, and a nozzle cleaning portion 833 for cleaning the nozzle portion 820.

Hip cleaning nozzle 831 includes a hip cleaning discharge port 834 which opens upward at the tip of nozzle body 830, and a hip cleaning flow path 835 which communicates with hip cleaning discharge port 834 from the rear end of nozzle body 830. The hip-part washing flow path 835 is provided at the lower part of the nozzle body 830, is bent upward below the hip-part washing discharge port 834, and is provided at the bent part with a rectifying plate 835a (fig. 24) for rectifying the flow of the washing water. The washing water ejected from the hip washing ejection port 834 is ejected upward through the ejection opening 844 of the nozzle cover 840.

The lower body wash nozzle 832 includes a lower body wash outlet 836 disposed rearward of the hip wash outlet 834 and a lower body wash flow path 837 communicating with the lower body wash outlet 836 from a rear end of the nozzle body 830. The washing water discharged from the lower body washing discharge port 836 is discharged upward through the discharge opening 844 of the nozzle cover 840 (fig. 26).

The nozzle cleaning portion 833 includes a nozzle cleaning ejection port 838 disposed on a side surface of the nozzle main body 830, and a nozzle cleaning flow path 839 (fig. 21) communicating with the nozzle cleaning ejection port 838 from a rear end of the nozzle main body 830. The washing water ejected from nozzle cleaning ejection port 838 is ejected into nozzle cover 840, and is ejected from water discharge port 845 of nozzle cover 840 to the outside of nozzle cover 840. The cleaning water ejected from the nozzle cleaning ejection port 838 is used for cleaning the nozzle portion 820 and the periphery thereof.

The nozzle 820 is supported at the front thereof in a state inserted into the clasping portion 816 of the support portion 810, and is slidably provided at the rear thereof in a state suspended from the guide rail 814.

The nozzle portion 820 can be moved between a storage position where the nozzle portion 820 is stored behind the clasping portion 816 as shown in fig. 16, a hip cleaning position where the nozzle portion 820 protrudes from the clasping portion 816 as shown in fig. 23, and a lower body cleaning position as shown in fig. 25.

The nozzle cover 840 includes a nozzle cover body 841 and a coupling member 842 (fig. 21). The nozzle cover body 841 is formed by forming a stainless steel thin plate into a cylindrical shape, and has a closed front end face and an open rear end face. The coupling member 842 is a substantially cylindrical shape (including a cylindrical shape) molded from a resin material, and coupling pieces 843 (fig. 22) for engaging with the nozzle body 830 are formed on both sides thereof.

A nozzle cover stopper for limiting the sliding range of the nozzle cover 840 is integrally formed on the right side of the rear end of the coupling member 842, and the sliding range is limited by abutting the nozzle cover stopper against the front stopper receiving portion and the rear stopper receiving portion formed in the support portion 810.

A part of the connecting member 842 is fixed in a state of being inserted into the nozzle cover body 841 from an opening at the rear end of the nozzle cover body 841, and is integrated. A single ejection opening 844 is provided on the front upper surface of the nozzle cover main body 841 so as to face the hip cleaning ejection port 834 and the lower body cleaning ejection port 836 of the nozzle main body 830. Further, a drain port 845 for discharging the washing water flowing out into the nozzle cover body 841 to the outside is provided on the front lower surface of the nozzle cover body 841.

The nozzle cover 840 has an inner diameter slightly larger than an outer diameter of the nozzle body 830, and has a dimensional relationship in which the nozzle body 830 and the nozzle cover 840 can smoothly slide with each other in a state where the nozzle body 830 is inserted into the nozzle cover 840.

A flow regulating valve 517 is provided on the rear end surface of the nozzle body 830. The flow regulating valve 517 includes a disk-shaped valve main body and a stepping motor for driving the switching action. Flow control valve 517 is configured to selectively supply washing water to hip wash flow path 835, lower body wash flow path 837, and nozzle cleaning flow path 839.

A water supply port for supplying washing water to the flow control valve 517 is provided on an outer surface of the valve body of the flow control valve 517, and a connection pipe 802 (fig. 16) communicating with a water supply joint 817 of the support portion 810 is joined to the water supply port.

Next, a coupling portion 850 formed by the coupling member 842 of the nozzle cover 840 and the coupled portion 851 of the nozzle body 830 will be described.

As shown in fig. 22 and 28, a coupling target portion 851 is formed on the right side of the outer periphery of the rear end portion of the nozzle main body 830. Two substantially V-shaped grooves are formed in the coupled portion 851, and two front concave portions 851a and two rear concave portions 851b are arranged at a front-rear spacing. The interval between the front recess 851a and the rear recess 851b is equal to the interval between the hip wash ejection port 834 and the lower wash ejection port 836.

On the other hand, the coupling member 842 of the nozzle cover 840 is molded from a substantially cylindrical resin material, and coupling pieces 843 protruding rearward are formed on both sides of the rear portion, and substantially V-shaped coupling protrusions 843a protruding inward are formed on the rear end of the coupling pieces 843.

In a state where the nozzle body 830 is inserted into the nozzle cover 840, the coupling protrusion 843a is always in contact with the coupled portion 851 of the nozzle body 830 by the elastic force of the coupling member 842 of the nozzle cover 840.

In addition, in a state where the coupling protrusion 843a is engaged with the inside of the front recessed portion 851a or the rear recessed portion 851b, the nozzle main body 830 and the nozzle cover 840 are coupled to each other, and the nozzle cover 840 can be moved by being pulled by the nozzle main body 830.

As shown in fig. 22, in a state where the coupling projection 843a enters the front recessed portion 851a, as shown in fig. 26, the lower body cleaning ejection port 836 of the nozzle main body 830 and the ejection opening 844 of the nozzle cover 840 face each other.

As shown in fig. 28, in a state where the coupling protrusion 843a enters the rear recessed portion 851b, the hip cleaning ejection port 834 and the ejection opening 844 face each other as shown in fig. 19 and 24.

< 6 > control and action of the washing section

Fig. 29 is a timing chart of the cleaning unit 500 in the first use of embodiment 1 of the present disclosure, and fig. 30 is a timing chart of the cleaning unit 500 in the normal use of the embodiment.

As a basic operation of the washing unit 500, tap water flowing through a tap water pipe is supplied as washing water to the water supply connection port 510, and the electromagnetic water stop valve 514 is opened to supply the washing water to the sub-tank 600. The flow rate of the washing water flowing through the flow path is maintained constant by the constant flow valve 513. The driving of the electromagnetic water stop valve 514 is controlled by the control unit 130 based on the operation of at least one of the remote controller 400 and the operation unit 210.

The wash water supplied to the subtank 600 is stored in the subtank 600, and is supplied to the heat exchanger 700 and the water pump 516 serving as a water injection amount changing unit. By driving the water pump 516 as a water spray amount changing unit, washing water is supplied to the nozzle device 800 through the flow control valve 517.

The control unit 130 controls the driving of the water pump 516 serving as a water discharge amount changing unit based on the operation of at least one of the remote controller 400 and the operation unit 210. The control unit 130 drives the water pump 516 serving as a water spray amount changing unit, and starts energization of the flat plate heater 702 of the heat exchanger 700 to start heating of the washing water.

The controller 130 controls the energization of the flat plate heater 702 based on the detection information of the inlet water temperature sensor 630 and the outlet hot water temperature sensor 730, and maintains the temperature of the washing water at the temperature set by the hot water temperature switch 231 of the operation unit 210.

The control unit 130 controls the flow control valve 517 based on operation information of at least one of the operation unit 210 and the remote controller 400, and supplies washing water to any one of the hip washing nozzle 831, the bidet washing nozzle 832, and the nozzle cleaning unit 833 of the nozzle device 800. Thereby, the washing water is ejected from any one of the hip washing ejection port 834, the lower body washing ejection port 836, and the nozzle cleaning ejection port 838.

Next, the control of the sub-tank 600, which is a characteristic configuration of the present embodiment, and particularly, the details of the water level detection and the flow rate detection will be described.

Fig. 29 is a timing chart showing the functions of the cleaning unit 500 when the cleaning unit is first used without storing the cleaning water, such as when the sanitary washing apparatus 100 according to embodiment 1 of the present disclosure is first used after being installed, or when the cleaning unit is reused after the drain operation is performed to prevent freezing.

At time P1 when the operation unit 210 or the washing switches (for example, hip washing switches 221 and 410) of the remote controller 400 are operated, the control unit 130 starts energization of the electromagnetic water stop valve 514 to start supply of the washing water, and at the same time, the control unit 130 starts driving of the water level detection sensor 620. The driving of the water level detection sensor 620 is continued until the hip washing stop P14.

When the water level detection sensor 620 detects the upper limit water level at P2, the controller 130 starts timing, and stops the energization of the electromagnetic water stop valve 514 and the supply of the washing water at a time P3 after a predetermined time has elapsed. In the present embodiment, the energization is stopped 2 seconds after the upper limit water level is detected.

At the time point P2 when the upper limit water level is detected, although the subtank 600 and the heat exchanger 700 are basically in the full water state, the heat exchanger 700 and the water pump 516 serving as the water injection amount changing unit can be filled with the washing water more reliably by continuing the supply for 2 seconds.

Accordingly, in the heat exchanger 700, since the air can be removed and the washing water can be reliably brought into the full water state, the empty burning of the heat exchanger 700 can be reliably prevented, and the safety and durability can be improved. Further, by reliably supplying the water pump 516 as the water discharge amount changing unit with washing water to bring the water pump into a full water state, the water supply function of the water pump 516 as the water discharge amount changing unit can be reliably activated.

At time P3 when the energization of electromagnetic water stop valve 514 is stopped, control unit 130 starts the driving of water pump 516 as the water discharge amount changing unit, activates throttle valve 517, and starts the supply of washing water to bottom washing flow path 835 of nozzle 820.

The water pump 516 serving as the water discharge amount changing unit is driven to lower the water level of the subtank 600, and the control unit 130 starts driving of the heat exchanger 700 at a timing P4 when the upper limit water level detected by the water level detection sensor 620 is released. By detecting the decrease in the water level, it is confirmed that the water pump 516 serving as the water injection amount changing unit is operating normally, and an abnormal temperature increase or the like of the heat exchanger 700 can be prevented.

The washing water supplied to hip cleaning flow path 835 is ejected from hip cleaning ejection port 834. The discharged washing water is reflected by the discharge opening 844 hitting the inner surface of the clasping portion 816 provided at the distal end of the support portion 810, and the outer surface of the nozzle cover 840 is cleaned. This cleaning action is referred to as pre-cleaning. The front washing is continued to a time P5 2 seconds after the hot water temperature of the heat exchanger 700 reaches 25 ℃.

When the current cleaning is finished at the time point P5, the control unit 130 starts driving of the cleaning nozzle driving unit 860 of the nozzle device 800, and advances the nozzle 820 from the storage position to the hip cleaning position. While moving from the storage position to the hip cleaning position, the flow control valve 517 is switched to supply cleaning water to the nozzle cleaning flow path 839. The washing water supplied to nozzle cleaning flow path 839 is ejected from nozzle cleaning ejection port 838 into nozzle cover 840, and the ejected washing water flows out of nozzle cover 840 through water discharge port 845 after the inner surface of nozzle cover 840 is cleaned. Since the nozzle portion 820 is heated by the washing water during this time, cold water discharge can be suppressed and discomfort can be felt during the hip washing performed later.

At time P6 when nozzle 820 reaches the hip-washing position, control unit 130 switches flow control valve 517 to start supply of washing water to hip-washing flow path 835. The washing water supplied to hip cleaning flow path 835 is ejected from hip cleaning ejection port 834 and washes the private parts of the user through ejection opening 844. The hip washing operation is continued until a time point P11 at which the washing stop operation is performed.

During the driving of the heat exchanger 700, the control unit 130 controls the washing water to a set temperature based on the detection data of the inlet water temperature sensor 630 and the outlet hot water temperature sensor 730.

The water level of the subtank 600 is lowered by the continuous driving of the water pump 516 serving as the water discharge amount changing unit, and the control unit 130 starts the energization of the electromagnetic water stop valve 514 at the timing P7 when the water level detection sensor 620 detects the lower limit water level and continues the energization until the timing P8 when the water level detection sensor 620 detects the upper limit water level.

At a time point P8 when the upper limit water level is detected, controller 130 stops energization of electromagnetic water stop valve 514, starts counting time, and counts the elapsed time until the next time point P9 when water level detection sensor 620 detects the lower limit water level. At the time point P9 when the lower limit water level is detected, the controller 130 calculates the flow rate by using the elapsed time measured and the water amount (65cc) from the upper limit water level to the lower limit water level. When there is a difference between the flow rate set for each washing intensity and the calculated flow rate at the calculation end time P10, the control unit 130 adjusts the output of the water pump 516 serving as the water discharge amount changing unit to correct the flow rate of the washing water.

At a time point P11 when the operation unit 210 or the remote controller 400 stops the cleaning operation, the water pump 516 and the heat exchanger 700 as the water discharge amount changing unit are stopped from being energized, the driving of the cleaning nozzle driving unit 860 in the nozzle device 800 is started, and the nozzle 820 is retracted from the hip cleaning position to the storage position.

At a time point P12 when the nozzle 820 retreats to the storage position, the drive of the cleaning nozzle drive unit 860 of the nozzle device 800 is stopped, the water pump 516 and the heat exchanger 700 as the water injection amount changing unit are driven again, the post-cleaning for cleaning the nozzle 820 is started, and at a time point P13 when a predetermined time has elapsed, the drive of the water pump 516 and the heat exchanger 700 as the water injection amount changing unit is stopped, and the post-cleaning is ended.

At a time point P13 when the post-cleaning of the nozzle 820 is finished, the electromagnetic water stop valve 514 is energized again to supply the cleaning water to the subtank 600, and at a time point P14 when the upper limit water level is detected, the energization of the electromagnetic water stop valve 514 is stopped to finish a series of control of the hip cleaning, and the subtank 600 is in the upper limit water level state and the cleaning unit is in the standby state.

Fig. 30 is a sequence diagram of the time of normal use in the case where the cleaning operation is performed in the sanitary cleaning apparatus 100 which has been used for the first time and is in the standby state in the embodiment 1 of the present disclosure.

The major difference from the first use case shown in fig. 29 is that: at the time P20 when the washing operation is performed, the subtank 600 is already in the full water state; and the control section 130 stores the state in which the first use has been carried out.

As shown in fig. 30, when the sub-tank 600 is in a standby state in a full water state, the controller 130 starts energization of the water pump 516 to start supply of washing water at a time point P20 when the operation unit 210 or the washing switches (for example, the hip washing switches 221 and 410) of the remote controller 400 are operated, and also starts energization of the heat exchanger 700 based on the stored data "control in which the first operation has been performed". Further, the pre-cleaning operation of the nozzle device 800 is started at the same time. In addition, the driving of the water level detection sensor 620 is simultaneously started.

The difference from the first use is that the control from the time when the cleaning operation is performed to the time when the energization of the heat exchanger 700 is started is the same as the control and the operation after the time P5 when the nozzle device 800 is started.

As described above, the sanitary washing apparatus 100 according to the present embodiment has the following configuration: the structure of the cleaning part 500 does not separately provide a flow sensor for detecting a flow rate, but detects a change in the water level by a water level detection sensor provided in the subtank 600 and detects the flow rate by calculation. This can simplify the structure of the cleaning unit 500 and reduce the cost.

In addition, by correcting the threshold value for determining the change in the output voltage between the electrodes in the water level detection according to the temperature, the accuracy of the water level detection and the flow rate detection can be improved, and water having a conductivity that differs within a wide range can be used as the washing water of the sanitary washing apparatus. This can expand the range of use of the sanitary washing apparatus 100 and improve usability.

Further, when the sanitary washing apparatus 100 is used for the first time, the water supply is continued for a predetermined time after the full water state of the subtank 600 is detected, and the water pump is driven, and the power supply to the heat exchanger 700 is started after the upper limit water level detected by the water level detection sensor is released, so that the heat exchanger 700 can be prevented from being empty-burned. Thus, safety and reliability can be ensured with a simple configuration and at low cost, as compared with a means for preventing dry burning that is generally implemented using a flow sensor.

< 7 > control and action of the spraying of the dispensing nozzle towards the inner surface of the toilet bowl

Fig. 31 is a perspective view showing an external appearance of a distribution nozzle 550 according to embodiment 1 of the present disclosure, fig. 32 is a sectional view of the distribution nozzle 550, fig. 33 is a longitudinal sectional view showing an installation state of the distribution nozzle 550, fig. 34 is a front view showing the installation state of the distribution nozzle 550, and fig. 35 is a plan view showing an installation position of the distribution nozzle 550 and a rotation angle of an ejection port of the distribution nozzle 550. Fig. 36 is a graph showing the pump output at each rotation angle of the discharge port 550u of the distribution nozzle 550 according to embodiment 1 of the present disclosure.

As shown in fig. 32, the distribution nozzle 550 is constructed as follows: the rotary nozzle 550d is rotatably driven by a nozzle driving unit 550a serving as a motor in a main body 550c having an inlet channel 550b, and the rotary nozzle 550d is axially sealed by O- rings 550e and 550 f. Further, by using the X-shaped seal ring instead of the O-ring 550f, the torque required for the rotational driving can be reduced, and the sticking can be easily prevented, so that the distribution nozzle driving portion 550a as a motor can be configured to be small and low in torque. The shaft 550n of the distribution nozzle driving portion 550a is fitted to the rotary nozzle 550 d.

The washing water or washing foam supplied from the inlet channel 550b of the main body 550c is discharged from the discharge port 550u through the plurality of inlet holes 550h opened around the rotary nozzle 550 d.

As shown in fig. 34 and 35, the distribution nozzle 550 is provided at a position on the right side of the center of the main body 200. This is because the distribution nozzles 550 are not arranged at the center but at either of the right and left sides of the center in order to preferentially arrange the hip washing nozzles 831 and the like, which are washing nozzles for washing the human body part, at the center.

When the user enters the toilet, the control unit 130 of the sanitary washing apparatus 100 detects the entry of the person by the human body detection sensor 450, and shifts to a rotating foam spreading mode (foam application) for spreading the wash foam into the toilet 110 while rotating the direction of the discharge port 550u of the spreading nozzle 550 by driving, and starts the operation of the water pump 516 as the water discharge amount changing unit and opens the on-off valve 530a to the action of spreading the rotating foam into the toilet 110.

At this time, since the flow control valve 517 for switching the flow paths of the bottom washing nozzle 831, the bidet washing nozzle 832, the nozzle cleaning portion 833, and the like is in a closed state, the washing water from the heat exchanger 700 is discharged from the distribution nozzle 550 to the inner surface of the toilet stool 110 through the branch flow path 530, the check valve 531, and the bubble tank 532.

At this time, the control unit 130 drives the spray nozzle driving unit 550a of the spray nozzle 550 to rotate the direction of the discharge port 550u of the spray nozzle 550, and forms a water film or a foam film on the entire inner surface of the toilet stool 110 with the washing water or the washing foam discharged from the discharge port 550 u.

As shown in fig. 35, the distance from the spray nozzle 550 to the inner surface of the toilet bowl 110 varies depending on the rotation angle direction of the discharge port 550u of the spray nozzle 550. As shown in fig. 36, the control unit 130 controls the output of the water pump 516 as the water discharge amount changing unit to be changed in accordance with the rotation angle of the discharge port 550u of the distribution nozzle 550.

In the sanitary washing apparatus 100 according to the present embodiment, the distance to the toilet bowl inner surface is the longest when the rotation angle in the direction of the discharge port 550u of the spray nozzle 550 is 160 °, and the distance to the toilet bowl inner surface is the shortest when the direction of the discharge port 550u is 340 °.

When the human body sensor 450 detects that the user enters the toilet, the control unit 130 changes the output of the pump (the water pump 516 as the water spray amount changing unit) in accordance with the rotation angle of the discharge port 550u of the spray nozzle 550 as shown in fig. 36.

That is, the ejection amount (and ejection speed) of the ejection port 550u is controlled as follows: when the distance from discharge port 550u of spray nozzle 550 to the toilet bowl inner surface is the farthest (long), that is, when the rotation angle is around 160 °, the output of the pump increases, and when the distance from discharge port 550u to the toilet bowl inner surface is the closest (short), that is, when the rotation angle is around 340 °, the output of the pump decreases.

Therefore, when the washing water is discharged to the front of the toilet bowl located at the farthest position from the discharge port 550u of the spray nozzle 550, the washing water is discharged with the strongest momentum and reaches the inner surface of the front of the toilet bowl. Further, when the washing water is discharged to the rear of the toilet bowl 110 located at the closest distance from the discharge port 550u of the spray nozzle 550, the washing water is discharged with the weakest momentum, so that the washing water or the washing foam can be discharged to the entire inner surface of the toilet bowl without causing troubles such as splashing to the rear of the toilet bowl, and a water film or a foam film can be formed on the inner surface of the front of the toilet bowl, thereby suppressing adhesion of dirt.

When the human body sensor 450 detects that the user enters the toilet, or by operating the operation unit 210 or the distribution switch 417 of the remote controller 400, so-called toilet foam distribution, which distributes the cleansing foam to the toilet 110, can be performed.

As shown in fig. 36, when the control unit 130 performs toilet foam dispensing based on the above-described toilet foam dispensing signal, the output of the water injection amount changing unit 516 is changed and the dispensing nozzle driving unit 550a is rotated in the normal direction so that the direction of the discharge port 550u of the dispensing nozzle passes from the rear of the toilet to the rear of the toilet through the front of the toilet. Thereafter, the control unit 130 reverses the spray nozzle driving unit 550a to return the direction of the discharge port 550u of the spray nozzle from the rear of the toilet to the rear of the toilet through the front of the toilet. The control unit 130 performs the step of dispersing the foam by at least one reciprocating rotation operation.

Thus, the output of the water spray amount changing unit is controlled so that the cleansing foam can reach the vicinity of the edge of the toilet stool 110, the cleansing foam can be spread over substantially the entire circumference of the inner surface of the toilet stool, and a foam film can be formed in the range from the front of the toilet stool to the inner surface at the rear of the toilet stool to suppress the adhesion of dirt.

In this case, as shown in fig. 36, the control unit 130 may be configured as follows: the cleansing foam is discharged by controlling the output of the water discharge amount changing unit when the dispensing nozzle driving unit 550a rotates forward to be lower than the output when the dispensing nozzle driving unit 550a rotates backward.

Further, when the output of the water spray amount changing unit is increased, the momentum of the sprayed cleansing foam is increased and the cleansing foam can be spread to a distant position from the spray nozzle 550, and when the output of the water spray amount changing unit is decreased, the momentum of the sprayed cleansing foam is decreased and the cleansing foam can be spread to a close position from the spray nozzle 550.

Accordingly, as shown by the trajectory of the spraying movement shown by the dotted line in fig. 35, when the normal rotation is performed in which the direction of the discharge port 550u of the spraying nozzle is driven to perform one reciprocating rotation, the cleansing foam is sprayed to the side of the draft surface on the inner side of the edge of the toilet stool 110. Then, as shown by the trajectory of the spraying movement shown by the broken line in fig. 35, when the direction of the discharge port 550u of the spraying nozzle is reversed by one reciprocating rotation, the cleansing foam is sprayed to the side close to the edge of the toilet 110.

This makes it possible to cover the draft surface at the upper part of the discharge port of the toilet stool 110 with the cleansing foam as soon as possible at the initial stage of the spreading, and to spread the cleansing foam over substantially the entire circumference of the toilet stool inner surface near the edge, thereby forming a foam film in the range from the front of the toilet stool to the rear inner surface and suppressing the adhesion of dirt.

As shown in fig. 2, 33, 34, 35, and the like, the position where the spray nozzle 550 is installed is located in front of the main body 200 installed in the toilet 110. Further, since the spray nozzle 550 is provided at a position on the front side of the front end position of the wash nozzle 831 in the state of being housed in the nozzle device 800, the direction of the discharge port 550u of the spray nozzle can be rotated by driving, and the foam can be sprayed to the rear of the toilet bowl, and the foam film can be formed in the range from the front to the rear of the toilet bowl to suppress the adhesion of the dirt.

In the above description, the normal rotation means the right-hand rotation and the reverse rotation means the left-hand rotation when viewed from above in fig. 35, but the normal rotation may be the left-hand rotation and the reverse rotation may be the right-hand rotation. In short, the direction in which the discharge port 550u of the spray nozzle starts rotating at the time of spraying is a normal direction, and the direction of returning is referred to as a reverse direction.

In the above description, the following structure is used: in the case of performing the rotating foam dispensing for dispensing the cleansing foam into the toilet 110, the output of the water pump 516 serving as the water discharge amount changing unit is controlled to be changed. By configuring the spray nozzle 550 as described below, even if the output of the water pump 516 as the water spray amount changing unit is not changed when the rotating foam is sprayed, a foam film is formed in the range from the front to the rear inner surface of the toilet, and the adhesion of dirt can be suppressed.

As shown in fig. 33 and 34, the distribution nozzle 550 is provided in the main body 200 as follows: the rotation axis Ax of the discharge port 550u of the distribution nozzle 550 driven to rotate is inclined in the front-rear direction and the left-right direction. The inclination in the front-rear direction is such that the lower side of the rotation axis Ax is inclined toward the front side of the toilet 110, and the inclination in the left-right direction is such that the lower side of the rotation axis Ax is inclined toward the side of the cleaning nozzle 831. With this configuration, when the discharge port 550u is directed to the front of the toilet 110 where the distance from the discharge port 550u of the spray nozzle 550 to the spray position is long, the direction of the discharge port 550u is increased, and the cleansing foam can be sprayed to the vicinity of the edge of the front of the toilet 110. On the other hand, when the discharge port 550u is directed to the rear of the toilet bowl 110 where the distance from the discharge port 550u of the spray nozzle 550 to the spray position is short, the direction of the discharge port 550u becomes low.

Further, when discharge port 550u is directed to the left side of toilet bowl 110 where the distance from discharge port 550u of spray nozzle 550 to the spray position is slightly longer, the direction of discharge port 550u is slightly longer, and thus flush foam can be sprayed near the edge on the left side of toilet bowl 110, and when discharge port 550u is directed to the right side of toilet bowl 110 where the distance from discharge port 550u of spray nozzle 550 to the spray position is slightly shorter, the direction of discharge port 550u is slightly shorter.

In this way, when the rotating foam dispensing for dispensing the cleansing foam from the dispensing nozzle 550 to the toilet bowl 110 is performed, the direction of the discharge port 550u of the dispensing nozzle 550 is rotated around the rotation axis Ax by being driven by the dispensing nozzle driving portion 550 a. Although the distance from the discharge port 550u of the spray nozzle 550 to the toilet bowl inner surface changes with the rotation of the spray nozzle 550, the foam film can be formed in the range from the front of the toilet bowl to the inner surface of the edge near the rear on the distribution locus drawn by the left-hand broken line arrow in fig. 35 because the cleaning foam is sprayed while the height of the discharge port 550u of the spray nozzle 550 changes with the rotation, and the adhesion of the dirt can be suppressed in the range from the front of the toilet bowl to the inner surface near the rear.

Further, since the rotary foam dispensing is performed with a constant output without changing the output of the water pump 516 as the water discharge amount changing section, when the rotary foam dispensing is performed in the right-hand rotation, the dispensing is performed so as to follow the same trajectory as the left-hand broken-line arrow in fig. 35 in the reverse direction.

In the present embodiment, as shown in fig. 33, the inclination angle β (angle with respect to the vertical direction) in the front-rear direction of the rotation axis Ax of the discharge port 550u of the spray nozzle 550 is 20 degrees, and the inclination angle γ (angle with respect to the vertical direction) in the left-right direction shown in fig. 34 is 10 degrees. The height position of the discharge port 550u of the spray nozzle 550 is set such that the discharge port 550u is located below the upper end surface of the toilet 110 at any rotational position.

As described above, with the configuration in which the control unit 130 changes the output of the pump in accordance with the rotation angle of the discharge port 550u of the spray nozzle 550, even if the distances to the front, side, and rear of the toilet are different, the washing water or the washing foam can be discharged so as to reach a wide range of the toilet inner surface, and a water film or a foam film can be formed in a wide range of the toilet inner surface, thereby suppressing the adhesion of dirt.

Further, a level switch that can be adjusted to raise or lower the level (average level) of the pump output may be provided in at least one of the operation unit 210 and the remote controller 400. Thus, even if the toilet 110 is different in size or the like, the washing water or the washing foam can be ejected so as to reach the entire toilet inner surface, and the water film or the foam film can be formed on the inner surface in front of the toilet to suppress the adhesion of dirt.

As described above, the control portion 130 changes the output of the pump according to the rotation angle of the ejection port 550u of the spray nozzle 550, and in addition to this, the control portion 130 may change the speed of the spray nozzle driving portion 550a according to the rotation angle of the ejection port 550u of the spray nozzle 550. By changing the output of the pump (the water pump 516 as the water discharge amount changing unit), the discharge momentum can be changed, the toilet bowl can reach a far toilet bowl inner surface, splashing on a near toilet bowl inner surface can be suppressed, and the distribution density can be further made uniform by changing the speed of the distribution nozzle driving unit 550a in accordance with the rotation angle of the discharge port 550 u.

That is, when the discharge port 550u of the spray nozzle 550 is rotated at a constant rotation speed, the spray density becomes sparse at a position distant from the toilet bowl inner surface, and becomes dense with respect to the spray density at a position distant from the toilet bowl inner surface.

Although there is an effect of making the distribution of the water uniform by changing the output of the pump (the water pump 516 serving as the water discharge amount changing unit), the water can be more uniformly, in other words, more thoroughly discharged to the inner surface of the toilet bowl by changing the speed of the distribution nozzle driving unit 550a according to the rotation angle.

For example, referring to the rotation angle shown in fig. 35, in the vicinity of the rotation angle of 160 ° which is farthest from the discharge port 550u of the spray nozzle 550, the washing water or the washing foam sprayed toward the front of the toilet 110 is dispersed, and the spray density becomes low, and when the washing water or the washing foam is discharged toward the front of the toilet, the spray nozzle 550 is set to the slowest rotation speed, and the spray density can be increased. On the other hand, when the spray nozzle 550 is discharged to the rear of the toilet bowl at a rotation angle of about 340 ° which is closest to the discharge port 550u of the spray nozzle 550, the spray density can be thinned by setting the spray nozzle 550 to the fastest rotation speed. This makes it possible to more uniformly distribute the washing water or the washing foam scattered on the inner surface of the toilet bowl, and to suppress the adhesion of dirt.

That is, the control unit 130 changes the speed of the spray nozzle driving unit 550a according to the rotation angle of the discharge port 550u of the spray nozzle 550, so that the speed of the spray nozzle driving unit 550a can be made smaller when the direction of the discharge port 550u of the spray nozzle 550 is a rotation angle in front of the toilet bowl where the distance to the toilet bowl inner surface is long, and the speed of the spray nozzle driving unit 550a can be made larger when the direction of the discharge port 550u of the spray nozzle 550 is a rotation angle in rear of the toilet bowl where the distance to the toilet bowl inner surface is short. Thus, even if the distances to the front, side, and rear of the toilet are different, the washing water or the washing foam can be thoroughly ejected to the inner surface of the toilet, and a water film or a foam film can be more thoroughly formed on the inner surface of the front of the toilet to suppress the adhesion of dirt.

When the user detects the entrance of a person by the human body detection sensor 450 and sprays cleansing foam, so-called toilet foam, onto the toilet bowl inner surface from the spray nozzle 550, the control unit 130 drives the rotary nozzle 550d by the spray nozzle driving unit 550a to perform at least one reciprocating rotation and foam spraying, and then automatically stops.

With such an operation, when a user enters the toilet room, the foam film can be formed on the inner surface of the toilet bowl before use, and the adhesion of dirt can be suppressed. The configuration is not limited to the above-described one-time reciprocating rotation drive as long as the discharge port 550u rotates and stops after being sprayed to the toilet inner surface the number of times of spraying over the entire toilet, and the user can selectively set the number of times of reciprocating when the toilet foam is sprayed by at least one of the operation portion 210 and the remote controller 400.

Further, the spray nozzle 550 is configured to rotate the rotary nozzle 550d of the spray nozzle 550 back and forth when spraying the washing water or the washing foam to the toilet bowl inner surface, as shown in fig. 36. Accordingly, unlike the configuration in which the rotary nozzle 550d of the spray nozzle 550 is rotated in the right direction or the left direction over the entire circumference, the spray direction of the washing water or the washing foam is always the same, and the washing water or the washing foam is reciprocatingly rotated to perform the reverse spray, and the two sprays by the forward and reverse rotations can be used to reduce the so-called missing spray portions and to more easily spread the entire area. This can suppress the adhesion of dirt with a small number of scattering times (time).

The following actions are shown in the graph of fig. 36: the toilet stops after rotating forward from a rotation angle of 0 DEG to a rotation angle of 340 DEG corresponding to the rear part of the toilet, and then rotates backward from the rotation angle of 340 DEG to a rotation angle of 0 DEG, and stops after the reciprocating rotation is completed.

The rotation nozzle 550d of the distribution nozzle 550 is provided with a rotation limiting portion (not shown) for limiting the rotatable range to a range from 0 ° to 340 ° by a mechanical stopper.

The rotation restricting portion (not shown) is configured as follows: the projections formed on the outer periphery of the rotary nozzle 550d are rotated together with the rotary nozzle 550d, and when the projections abut against the rotation restricting wall of the main body 550c, the motor serving as the distribution nozzle driving unit 550a rotates the rotary nozzle 550d, but the motor slips and idles due to mechanical abutment, and the rotary nozzle 550d cannot rotate.

In this way, by providing the rotation restricting portion for restricting the rotation range and configuring the spray nozzle 550 to be rotated in a reciprocating manner within the rotation range not restricted by the rotation restricting portion, the reverse direction spraying by the reciprocating manner is performed, and the two directions spraying by the forward and reverse rotation can be used to reduce the so-called missing part of the spraying and to more easily spread the entire area, so that the dirt adhesion can be suppressed with a small number of times (time) of the spraying.

Further, since the spray nozzle driving unit 550a is formed by a motor and the origin of the rotational position of the spray nozzle driving unit 550a can be identified at the position where the rotation restricting unit abuts, it is possible to realize a spray having a high accuracy of the rotational angle position and the rotational speed and a small deviation.

As described with reference to the water circuit configuration of fig. 6, the branch flow path 530 that branches off between the water pump 516 and the flow control valve 517 as the water injection amount changing unit in the washing water supply flow path 690 is connected to the bubble tank 532 via the on-off valve 530a and the check valve 531 so as to supply the washing water to the bubble tank 532, and the distribution nozzle 550 is connected to the downstream of the bubble tank 532. A detergent tank 533 for supplying detergent and a detergent pump 534 are connected to the bubble tank 532, and an air pump 535 for supplying air to the bubble tank 532 to produce cleaning bubbles is provided.

The control unit 130 opens the on-off valve 530a to supply the washing water from the heat exchanger 700 by the water pump 516 serving as the water injection amount changing unit, and discharges the washing water or the washing foam from the spray nozzle 550. At this time, the discharge amount and discharge momentum (discharge speed and discharge pressure) of the washing water or the washing foam discharged from the spray nozzle 550 are increased or decreased according to the increase or decrease of the outputs of the water pump (pump) 516 and the air pump 535 as the water discharge amount changing unit.

The opening/closing valve 530a may be provided in the branch flow path 530, and a flow path switching valve may be provided in a branch portion between the branch flow path 530 and the washing water supply flow path 690.

The user can select whether to dispense the washing water or the washing foam from the dispensing nozzle 550 by using at least one of the operation unit 210 of the main body 200 and the remote controller 400.

A foam tank 532 to which a detergent is supplied to generate cleaning foam is provided between the on-off valve 530a and the spray nozzle 550, and the cleaning foam is discharged from the discharge port 550u of the spray nozzle 550 toward the inner surface of the toilet bowl. Thus, the foam film formed by the detergent-containing cleansing foam is formed on the inner surface of the toilet bowl, instead of the water film alone by the water or warm water dispersion, thereby further improving the effect of inhibiting the adhesion of dirt.

In addition, by using a foam film formed of a detergent-containing cleansing foam, unpleasant odor can be suppressed, and the feeling of comfort in the visual clean impression can be improved.

In the sanitary washing apparatus 100 according to the present embodiment, when the human body detection sensor 450 detects the entry of a human body, the operation unit 210 or the spray switch 417 of the remote controller 400 is operated to spray the washing water or the washing foam from the spray nozzle 550 to the toilet bowl inner surface.

Thus, when the toilet stool is likely to be contaminated, a foam film formed of detergent-containing cleansing foam is formed at any time, and the toilet stool 110 can be cleaned.

The user can select in advance which of the flush water and the flush foam is to be sprayed from the spray nozzle 550 to the toilet bowl inner surface by using a spray selection switch (not shown) of at least one of the operation unit 210 and the remote controller 400.

The control unit 130 has a flush command mode in which a selection instruction can be given by at least one of the operation unit 210 and the switch button of the remote controller 400. In the flushing command mode, the control unit 130 may be configured to open the on-off valve 530a in a state where the detergent pump 534 for supplying the detergent in the detergent tank 533 of the bubble generation unit 560 to the bubble tank 532 is stopped, supply the washing water to the bubble tank 532 by the water spray amount changing unit 516, and discharge the washing water from the spray nozzle 550.

Thus, the path from the bubble tank 532 to the spray nozzle 550 is washed with the washing water, and thus, it is possible to prevent the path and the spray nozzle 550 from being clogged due to the adhesion of the detergent, to prevent the spray nozzle 550 from rotating due to the adhesion of the detergent, and the like. In addition, the inner surface of the toilet bowl can be flushed.

That is, since the detergent pump 534 is stopped during the flushing operation, the detergent is not supplied to the bubble tank 532 while supplying the washing water. Therefore, the path from the bubble tank 532 to the spray nozzle 550 can be flushed with wash water, and the toilet bowl inner surface can also be flushed with wash water.

In addition, although the washing operation can be performed with washing water that is not temperature-controlled, a more excellent washing effect can be obtained by controlling the temperature of the washing water sent from the heat exchanger 700 to about 40 ℃.

In order to enter the flush command mode, the user can flush at any time by operating the flush switch 223 of the operation unit 210.

Further, a flush lamp 223a (fig. 4) such as an LED is provided in the vicinity of the flush switch 223 of the operation unit 210 for entering the flush instruction mode, and the control unit 130 is configured to automatically flash the flush lamp 223a when a predetermined time, for example, 20 days has elapsed after the last flush, thereby preventing forgetting to flush.

When the cleansing foam is sprayed from the spray nozzle 550 to the toilet bowl inner surface, the control unit 130 may change the output of the air pump 535 according to the rotation angle of the discharge port 550u of the spray nozzle 550, as in the case of the pump output shown in fig. 36. Thus, even if the distances to the front, side, and rear of the toilet are different, the cleansing foam can be ejected so as to reach the entire inner surface of the toilet, and the foam film can be formed on the inner surface of the front of the toilet to suppress the adhesion of dirt.

That is, when the distance from the discharge port 550u of the spray nozzle 550 to the toilet bowl inner surface is the farthest (long), that is, when the rotation angle is around 160 °, the output of the air pump 535 is increased to increase the air pressure of the air pump 535, thereby increasing the momentum of the flush foam flying out from the discharge port 550u to a large extent. On the other hand, when the distance from the jet outlet 550u to the toilet bowl inner surface is the shortest (short), that is, when the rotation angle is around 340 °, the output of the air pump 535 is reduced to lower the air pressure of the air pump 535, thereby reducing the momentum of the flush foam. Thus, the cleansing foam can be thoroughly discharged to the inner surface of the toilet bowl.

Further, a dirt detection unit (not shown) for detecting dirt in the toilet stool 110 by using an image element or the like is provided, and the control unit 130 can further improve the dirt suppression effect by making the dirt go back and forth and intensively spread in the portion where the dirt remains. In addition to the method of partially reciprocating the dirty portion, the rotational speed at which the discharge port 550u of the scattering nozzle 550 rotates and passes may be set to low speed rotation at the dirty portion, or the pump output at the time of rotating and passing may be increased.

< 8 > control and operation of discharge from a spray nozzle in a state where a toilet seat is opened and not seated

Next, a case will be described in which the operation unit 210 or the scatter switch of the remote controller 400 is operated in a state where the user is not seated on the toilet seat 300 and the toilet seat 300 is substantially vertically opened, as in the case of a male urinating.

In this case, since the user is in a standing posture and the toilet seat 300 is in an open state, the signal of the toilet seat opening/closing detection unit 331 is in a toilet seat open state, and the signal of the seating detection unit 330 is in a non-seating state.

When the user presses the spray switch 417, as shown in fig. 37, the control unit 130 drives the spray nozzle driving unit 550a to rotate to a position where the direction of the discharge port 550u of the spray nozzle 550 is directed toward the discharge port 115 of the toilet stool (in the present embodiment, as shown in the graph of fig. 37, the rotation angle of the discharge port 550u is around 20 °), and then stops. Thereafter, the water discharge amount changing unit 516 is controlled to output an intermediate level, and as shown by the arrow in fig. 37, the cleansing foam is discharged to the discharge port 115 of the toilet for a predetermined time (8 seconds in the present embodiment). The discharged cleansing foam covers the water surface above the discharge port 115 of the toilet 110, i.e., the upper part of the draft surface in the toilet 110.

In the rotary foam dispensing (foam application) mode of the control unit 130 described in the above item < 7 >, the cleaning foam is dispensed into the toilet bowl while being driven to rotate the direction of the discharge port 550u of the dispensing nozzle 550, and in the item < 8 >, the fixed foam dispensing for dispensing the cleaning foam into the toilet bowl 110 with the direction of the discharge port 550u of the dispensing nozzle 550 fixed is performed by the fixed foam dispensing (splash-out suppression) mode of the control unit 130.

As described above, the following is assumed: in a state where the user is not seated on the toilet seat 300 and the toilet seat 300 is substantially vertically opened as in the case of urine of a male, the manual spill prevention switch 434 as a scatter switch of the operation unit 210 or the remote controller 400 is operated. In this case, as shown in fig. 37, the control unit 130 drives the spray nozzle driving unit 550a to rotate to a position where the direction of the discharge port 550u of the spray nozzle 550 is directed to the rear of the toilet bowl (in the present embodiment, as shown in the graph of fig. 37, the rotation angle of the discharge port 550u is around 20 °) and then stops. Thereafter, the water discharge amount changing unit 516 is controlled to output a high level, and the cleansing foam is discharged to the rear of the toilet for a predetermined time (8 seconds in the present embodiment) as shown by the arrow in fig. 37.

In this case, as shown in the sectional view of fig. 33, the ejection port 550u of the distribution nozzle 550 is arranged rearward from the rotation axis of the distribution nozzle 550: ax is open at an angle α, and therefore can be fixed in the direction of the discharge port in fig. 33: ac (b) discharges the cleaning foam in the direction of Ac (b).

In this way, after the discharge port 550u of the spray nozzle 550 is driven and rotated to the rear of the toilet, the water discharge amount changing portion 516 is controlled to have a high output, so that the flush foam can quickly bring the water surface above the discharge port 115 in the toilet and the upper part of the water line in the toilet into a state covered with the foam. This makes it possible to suppress odor and adhesion of dirt near the draft surface of the toilet bowl by the cleansing foam. Further, when urine falls to the vicinity of the water surface in the toilet, the rebound to the surroundings can be suppressed by the cushioning effect of the foam covering the water surface. That is, by rapidly and largely spraying the foam in the direction in which the spray nozzle 550 is fixed, the foam is formed on the upper portion of the water surface in the toilet stool 110, and the jumping and splashing of urine can be prevented.

In addition, the present embodiment is configured as follows: when the user operates the manual spill-inhibiting switch 434 of the remote controller 400 during urination by a male, the control unit 130 enters a fixed foam dispensing starting (spill-inhibiting) mode, drives the dispensing nozzle driving unit 550a to rotate to a position where the direction of the discharge port 550u of the dispensing nozzle 550 is directed toward the discharge port 115 of the toilet stool, and then stops. Then, the water discharge amount changing unit 516 is controlled to output a high level, and the cleansing foam is discharged toward the rear of the toilet. However, the position where the cleansing foam is fixedly dispersed may be any one of the front side, the center, and the rear side of the toilet in the vicinity of the discharge port 115.

That is, by quickly bringing the draft surface and the upper portion of the toilet waterline into a state covered with the foam within a short time of several seconds after the start of the ejection of the cleansing foam, it is possible to suppress the jumping and scattering of urine and to suppress the adhesion of dirt in the vicinity of the waterline and the upper portion thereof in the toilet 110.

In addition, in the fixed foam dispensing mode in which the cleansing foam is dispensed into the toilet 110 in a state in which the direction of the discharge port 550u of the dispensing nozzle 550 is fixed by the fixed foam dispensing commanding (splash-up suppressing) mode, the cleansing foam is discharged toward the discharge port 115 of the toilet 110 with the water discharge amount changing portion 516 controlled to have a high output in fig. 37. However, similarly to the rotary bubble distribution described in the item < 7 >, the output of the water pump 516 serving as the water spray amount changing unit may be set to a constant output that does not change, that is, the output of the water pump 516 serving as the water spray amount changing unit when the fixed bubble distribution is performed may be maintained to be the same as the output when the rotary bubble distribution is performed.

As described above, the sanitary washing apparatus according to the present embodiment includes the main body 200 provided in the toilet stool 110, the washing nozzle 831 for washing the human body, the bubble generating portion 560 for generating the washing bubble, the spray nozzle 550 for spraying the washing water or the washing bubble to the inner surface of the toilet stool, the water spray amount changing portion (the water pump 516) for changing the flow rate of the washing water to be sent to the spray nozzle, and the spray nozzle driving portion 550a for driving to rotate the direction of the spray nozzle 550 u. The control unit includes an on-off valve 530a for opening and closing a water path to the spray nozzle 550, a control unit 130 for controlling the above operation, and an operation unit 210 (or a remote controller 400) for instructing the setting control unit 130.

The control unit 130 has a rotating foam spreading mode (foam application) for driving to rotate the direction of the discharge port 550u of the spray nozzle 550 and spreading the cleansing foam into the toilet 110, and a fixed foam spreading mode (splash-up suppression) for spreading the cleansing foam into the toilet with the direction of the discharge port 550u of the spray nozzle 550 fixed.

With this configuration, when toilet foam is dispensed from the dispensing nozzle 550 to the toilet 110, the foam is formed in the range from the front to the rear of the toilet by driving the direction of the discharge port 550u of the dispensing nozzle 550 to rotate and dispensing the cleansing foam so as to widely reach the toilet, and dirt can be prevented from adhering to the toilet inner surface and the vicinity of the waterline. Further, by using the fixed foam-dispensing starting mode in which the cleansing foam is dispensed into the toilet bowl with the direction of the discharge port 550u of the dispensing nozzle 550 fixed, the cleansing foam is formed quickly on the upper portion of the water surface in the toilet bowl 110, and the water surface on the upper portion of the discharge port 115 in the toilet bowl 110 can be covered with the cleansing foam. This makes it possible to suppress unpleasant odor during urination and splashing caused by splashing during urination by men by using the cleansing foam.

In addition, as a result of a verification experiment on the effect of suppressing splash due to splash when a male urinates, as shown in fig. 49, it was confirmed that: the effect is improved from the foam height, that is, the thickness of the foam, of about 5mm, as compared with the case where no foam is present, and the suppression effect is remarkable when the thickness of the foam is about 10 mm. That is, the thickness of the foam on the water surface in the toilet stool 110 by the foam spreading preferably has a lower limit of 5mm or more and an upper limit of 50mm or less. Wherein the upper limit is set to 50mm or less in order to set the foam height as follows: when a user sits on the toilet seat, the accumulated foam does not contact the buttocks.

In the sanitary washing apparatus 100 according to the present embodiment, the spray nozzle 550 is provided in the main body 200 such that the rotation axis line Ax of the discharge port 550u of the spray nozzle 550 driven to rotate is inclined in the front-rear direction and the left-right direction. Further, the following structure is provided: the inclination in the front-rear direction is such that the lower side of the rotation axis Ax is inclined toward the front side of the toilet 110, and the inclination in the left-right direction is such that the lower side of the rotation axis Ax is inclined toward the side of the cleaning nozzle 831.

Thus, when toilet foam is dispensed from dispensing nozzle 550 to toilet 110, the direction of discharge port 550u is high when discharge port 550u is directed to the front of the toilet where the distance from discharge port 550u of dispensing nozzle 550 to the dispensing position is long, and the direction of discharge port 550u is low when discharge port 550u is directed to the rear of the toilet where the distance from discharge port 550u of dispensing nozzle to the dispensing position is short.

Thus, the height of the discharge port 550u of the spray nozzle can be changed according to the distance from the discharge port 550u of the spray nozzle to the inner surface of the toilet stool 110, and the bubble film can be formed in the range from the front to the rear inner surface of the toilet stool to suppress the adhesion of the dirt without changing the output of the water pump 516 as the water discharge amount changing portion when the rotating bubble is sprayed.

In the sanitary washing device 100 according to the present embodiment, when the rotating foam is sprayed from the spray nozzle 550 to the toilet bowl 110, the control unit 130 rotates the spray nozzle driving unit 550a in the normal direction, and causes the direction of the discharge port 550u of the spray nozzle 550 to pass from the toilet bowl rear side to the toilet bowl rear side through the toilet bowl front side. Next, the control unit 130 reverses the direction of the discharge port 550u of the spray nozzle by reversing the spray nozzle driving unit 550a from the rear of the toilet bowl to the front of the toilet bowl and returns the direction to the rear of the toilet bowl, and performs the rotating foam spraying step by at least one reciprocating rotation operation.

Thus, when the rotating foam dispensing for dispensing the cleansing foam from the dispensing nozzle 550 to the toilet bowl 110 is performed, the control unit 130 rotates the dispensing nozzle driving unit 550a in the normal direction, and the direction of the discharge port 550u of the dispensing nozzle 550 passes from the toilet bowl rear to the toilet bowl rear through the toilet bowl front. Thereafter, the control unit 130 reverses the direction of the discharge port 550u of the spray nozzle so that the direction passes from the rear of the toilet to the front of the toilet and returns to the rear of the toilet, thereby performing at least one reciprocating rotational drive. The output of the water spray amount changing unit is controlled so that the flush foam reaches the vicinity of the edge of the toilet 110. Thus, the cleansing foam can be spread over substantially the entire circumference of the inner surface of the toilet bowl, and the foam film can be formed in the range from the front of the toilet bowl to the rear of the inner surface of the toilet bowl, thereby suppressing the adhesion of dirt.

The sanitary washing apparatus 100 according to the present embodiment further includes a human body detection sensor 450 for detecting the entry and exit of a user into and from the toilet room, and the control unit 130 is configured to disperse the whirling foam into the toilet bowl 110 by at least one reciprocating rotation operation described above when the human body detection sensor 450 detects the entry of the user into the toilet room.

Accordingly, when the human body detection sensor 450 detects that the user enters the toilet room, the direction of the discharge port 550u of the spray nozzle is driven to rotate back and forth at least once, and the cleansing foam is sprayed onto the inner surface of the toilet stool 110, that is, the rotating foam is sprayed.

The sanitary washing apparatus 100 according to the present embodiment includes a bubble tank 532 to which washing water is supplied by the water spray amount changing unit 516 by opening the opening/closing valve 530a by the control unit 130, a detergent pump 534 for supplying detergent of the detergent tank 533 to the bubble tank 532, and an air pump 535 for supplying air to the bubble tank. Further, the structure is as follows: the washing water or washing foam of the foam tank 532 is sprayed from the spray nozzle 550.

With this configuration, not only water or warm water but also cleansing foam containing a detergent is sprayed onto the surface of the cleansing nozzle 831 or the inner surface of the toilet. This can improve the cleaning effect and the effect of inhibiting the adhesion of dirt. Further, the use of the cleansing foam containing a detergent can suppress unpleasant odor and improve the visual feeling of cleanness.

In the sanitary washing apparatus 100 according to the present embodiment, the control unit 130 has a flushing command mode in which the on-off valve 530a is opened to supply the washing water to the bubble tank 532 by the water spray amount changing unit 516 and the washing water is discharged from the spray nozzle 550 while the detergent pump 534 for supplying the detergent in the detergent tank 533 of the bubble generating unit 560 to the bubble tank 532 is stopped.

With this configuration, the path from the bubble tank 532 to the distribution nozzle 550 is flushed with the washing water, and the clogging of the path and the distribution nozzle 550 due to the adhesion of the detergent and the rotation of the distribution nozzle 550 due to the adhesion of the detergent can be prevented. In addition, the inner surface of the toilet bowl can be flushed.

In the present embodiment, a motor is used as the dispensing nozzle driving unit 550a, but the dispensing nozzle 550 may be rotated by another driving source, for example, by the action of discharging the cleansing foam from the discharge port 550u of the dispensing nozzle 550.

Further, a spray nozzle 550 for spraying the cleansing foam to the vicinity of the edge of the toilet 110 and a spray nozzle 550 for spraying the cleansing foam to the vicinity of the discharge port 115 of the toilet 110 may be provided. The plurality of distribution nozzles 550 may be rotated independently of each other or may be rotated in conjunction with each other.

Further, the spray nozzle 550 may be provided with a discharge port 550u for spraying the cleansing foam to the vicinity of the edge of the toilet 110 and a discharge port 550u for spraying the cleansing foam to the vicinity of the discharge port 115 of the toilet 110.

In the present embodiment, the spray nozzle 550 is configured to spray to two locations, the vicinity of the edge of the toilet 110 and the vicinity of the discharge port 115 of the toilet 110, but may be configured to spray to other locations besides the vicinity of the edge of the toilet 110 and the vicinity of the discharge port 115 of the toilet 110.

As shown in fig. 34, 38, and 39, in the sanitary washing device 100 of the present embodiment, the sleeve housing 250 is integrally provided to the main body 200 so as to protrude forward of the side portion of the main body 200. Further, the following structure is provided: a sleeve cover 217 provided at a position forward of an operation portion 210 disposed at an upper portion of the sleeve housing 250; and a detergent liquid level confirmation window 216, which is a transparent or translucent container in which a bubble generating portion 560 is built in the inside of the sleeve cover 217 and the foremost part of the sleeve housing 250, and in which the detergent liquid level position of the detergent tank 533 can be visually confirmed on the front surface of the sleeve housing 250 by the detergent liquid level confirmation window 216.

With such a configuration, the user can easily visually confirm the remaining amount of the detergent when he or she walks in front of the sanitary washing apparatus 100, and therefore, the detergent can be replenished before the detergent is used up.

In this way, the detergent tank 533 having the detergent inlet 537 provided with the detergent tank cover 536 at the upper side is provided at the forefront of the cuff housing 250 forward of the operation portion 210 and at the closest position to the toilet front surface, and therefore, a configuration can be formed in which the supply of the detergent is facilitated. Further, by providing the detergent tank 533 having the detergent inlet 537 at the forefront of the sleeve housing 250 in front of the operation portion 210, it is possible to prevent the detergent from spilling onto the operation portion 210 when the sleeve cover 217 in front of the operation portion 210 is opened and the detergent is replenished from the detergent inlet 537 to the detergent tank 533.

Further, as shown in fig. 38 and 39, since the height of the detergent inlet 537 is set lower than the operating portion 210, when the detergent tank 533 is replenished with detergent, the detergent can be further prevented from dropping on the operating portion 210.

In the sanitary washing apparatus 100 according to the present embodiment, the detergent pump hose 561 shown in fig. 6 and 38 is a hollow cylindrical tube for guiding the detergent from the outlet side of the detergent pump 534 to the inlet side of the bubble tank 532, and is formed as a so-called double hose in which the tube is further covered on the outside of the tube. In addition, the inner diameter of the detergent pump hose 561 is smaller than the inner diameter of the bubble tank hose 562 for guiding the washing bubble from the bubble tank 532 to the scattering nozzle 550.

With this configuration, even if a high pressure is applied from the detergent pump 534, the detergent pump hose 561 can be prevented from being greatly expanded and broken, and the cleaning foam can be stably dispersed from the dispersion nozzle 550.

In the sanitary washing device 100 of the present embodiment, the detergent pump hose 561 having a double hose structure is configured as a double hose formed by covering the outside of the elastomer resin tube with a heat shrinkable tube, but the material is not limited thereto. Even if the material is other material, by forming the double hose, the expansion and the breakage can be prevented, and the cleansing foam can be stably dispensed from the dispensing nozzle 550.

As is apparent from fig. 2, 39, and 40, in the sanitary washing apparatus 100 according to the present embodiment, the main body 200 having the control unit 130, the spray nozzle 550, the nozzle device 800, and the like therein is configured such that the front surface of the rear main body case 201 is covered with the main body case 202.

The spray nozzle 550 is provided in the front portion of the rear body case 201, the front and upper portions of the spray nozzle 550 are covered with the body case 202, and the discharge port 516e in the lower portion of the spray nozzle 550 is provided in a manner opened to the toilet bowl inner surface (fig. 40).

Fig. 40 is a cross-sectional view of the center portion of the distribution nozzle 550 provided in the rear body case 201 in embodiment 1 of the present disclosure, taken along the front-rear direction.

The cleansing foam discharged from the discharge port 516e of the spray nozzle 550 is usually discharged toward the toilet bowl inner surface as shown by the dotted line T in fig. 40. However, when the detergent-free and foam-free washing water is discharged from the discharge port 516e of the spray nozzle 550 as in the case of the flushing in the flushing water spray mode described above, the discharge flow spreads and splashes as shown by the two-dot chain line S in fig. 40, and may splash out of the toilet and wet the floor surface.

In contrast, as shown in fig. 40, in the sanitary washing apparatus 100 according to the present embodiment, the splash guard 550z is formed in the main body case 202 so as to block the upward jet flow from the discharge port 516e of the spray nozzle 550, which exceeds the upper limit, by the wall portion and to drop the jet flow into the toilet 110. The splash guard 550z prevents the wash foam and wash water discharged from the spray nozzle 550 from being discharged to the outside of the toilet 110, and allows the wash foam and wash water to be sprayed into the toilet 110.

That is, the splash guard 550z is provided in a part of the main body 200 covering the front and upper parts of the spray nozzle 550 of the main body 202, and the splash guard 550z is configured to block an upward jet flow from the discharge port 550u of the spray nozzle 550 exceeding the upper limit and to fall into the toilet, thereby preventing the wash foam and the wash water discharged from the spray nozzle 550 from being discharged to the outside of the toilet 110.

The splash guard 550z formed in the main body case 202 prevents the wash foam and the wash water discharged from the spray nozzle 550 from being discharged to the outside of the toilet 110. The sanitary washing apparatus 100 is configured such that the main body 200 can be attached to and detached from the toilet 110 via the main body fixing plate 240 (fig. 43). When a constructor or a user performs construction to be initially installed in the toilet 110, or when the user detaches the main body 200 from the toilet 110 and tries to clean dirt near the lower portion of the rear side of the main body 200, the main body 200 of the detached sanitary washing apparatus 100 may be temporarily placed on a table or a floor.

Thus, even when the main body 200 of the sanitary washing apparatus is placed on a table or a floor at will, the discharge port 516e of the spray nozzle 550 positioned below the mounting surface of the main body 200 can be protected by the splash shield portion 550z so as not to contact the table or the floor, and damage to the spray nozzle 550 can be prevented. Fig. 41, which is a front view of the main body 200, and fig. 42, which is a side view of the main body 200, are two-dot chain lines showing a surface of the table in a state where the main body 200 is placed. As shown in fig. 41 and 42, the discharge port 516e of the spray nozzle 550 is not in contact with the surface of the table by the splash shield 550 z.

In the sanitary washing device 100 according to the present embodiment, the splash guard 550z is formed in the main body case 202, but the splash guard 550z may be formed in the main body 550c of the spray nozzle 550.

Fig. 43 is a perspective view of the body fixing plate 240 and the rear body case 201 of the body 200 in embodiment 1 of the present disclosure.

For convenience of explanation, the rear body case 201 is a perspective view in which the control unit 130, the distribution nozzle 550, the nozzle device 800, and the like provided inside are omitted.

The main body fixing plate 240 is fixed to the toilet 110 by inserting an unillustrated mounting bolt into the position adjustment elongated hole 241. Then, the body fixing plate 240 is aligned with the center of the body 200, the rear portion of the body fixing plate 240 is slightly raised, and the body 200 is slid from the toilet surface and pressed until a "click" sound occurs, at which time the body 200 is fixed to the toilet 110 by a ratchet mechanism.

When the main body 200 is detached from the toilet 110, the main body 200 can be detached by pushing the main body attachment/detachment button 242 located on the side surface of the main body 200 with a finger to a deep position and pulling the main body 200 forward.

As shown in fig. 43, a magnet 243 is embedded in the main body fixing plate 240 made of resin, and a detachable sensor 244 capable of detecting whether the main body 200 is attached to the toilet 110 or the main body 200 is detached from the toilet 110 is attached to the rear body case 201.

The attachment/detachment sensor 244 is formed by a reed switch, and as shown in the partial cross-sectional view of fig. 44, the state in which the main body 200 is attached to the toilet 110 can be detected by the relative positional relationship between the magnet 243 of the main body fixing plate 240 and the attachment/detachment sensor 244 of the rear body case 201. When the main body 200 is detached from the toilet 110, the magnet 243 and the attachment/detachment sensor 244 are separated from each other, and the detached state can be detected by the attachment/detachment sensor 244.

The control unit 130 is configured not to perform the discharge operation of the spray nozzle 550 when the detachment sensor 244 detects that the main body 200 is detached from the toilet 110. Thus, when the main body 200 is detached from the toilet stool 110, for example, even if a button for instructing the discharge operation of the distribution nozzle 550, such as the manual bubble application switch 433 or the manual spill suppression switch 434 of the controller main body 401, is pressed, the discharge operation of the distribution nozzle 550 is not executed. Therefore, it is possible to prevent the cleaning foam from being discharged to the floor and a person from being carelessly caused.

Further, the control unit 130 is configured not to prohibit the discharge operation of the bottom washing nozzle 831 and the bidet washing nozzle 832 even when the attachment/detachment sensor 244 recognizes that the main body 200 has been detached from the toilet 110. Thus, even if the detachable sensor 244 should fail and a situation in which the main body 200 is erroneously recognized as being detached from the toilet 110 occurs, it is possible to perform the basic functions of the sanitary washing apparatus 100, that is, the hip washing and the lower body washing, which are important for the user.

Fig. 45 is a timing chart when the rotating foam spreading is performed in the sanitary washing device 100 according to embodiment 1 of the present disclosure.

When the manual foam application switch 433 of the controller main body 401 is pressed, the detergent pump 534 is rotated in reverse for 2 seconds at a timing N2 shown in fig. 45, and then, at a timing N3, the normal rotation is started, the water pump 516 and the air pump 535 are operated, and detergent, water, and air are supplied to the foam tank 532, thereby generating cleaning foam. The generated cleansing foam is sprayed from the discharge port 550u of the spray nozzle 550 toward the inner surface of the toilet 110. By the rotating foam spreading towards the inner surface of the toilet bowl, it is possible to make it difficult for dirt to adhere to the inner surface of the toilet bowl and to make it easier for dirt to fall down.

At this time, the discharge port 550u of the spray nozzle 550 is driven and rotated by a spray nozzle driving portion 550a as a stepping motor. In the timing chart of fig. 45, the discharge port 550u of the spray nozzle 550 returns by performing foam spraying while rotating from the stop position at the time of N3 to the end position at the time of N6, and thereafter, rotating from the end position at the time of N6 to the stop position at the time of N9 while performing foam spraying. Then, at the time point of N11, the operation of the water pump 516 and the air pump 535 is automatically stopped, and the rotary foam dispensing is automatically ended.

Further, the control section 130 continuously operates the water pump 516 and the air pump 535 during the periods N3 to N11 in which the rotary foam scattering is performed. In contrast, the detergent pump 534 is intermittently operated as follows: the control device is configured to rotate in the forward direction during a period from N3 to N4, then stop, rotate in the forward direction during a period from N6 to N7, then stop, rotate in the forward direction during a period from N9 to N10, and then stop.

According to the experiment, the case of intermittent operation enables better mixing of the detergent, water, and air, and more stable washing foam can be generated, as compared with the case of continuously operating the detergent pump 534 during the spreading of the rotating foam. In this way, by intermittently operating the detergent pump 534 during the rotating foam spreading, stable cleaning foam can be generated. In addition, waste of the detergent can be prevented, and the workload of detergent replenishment can be reduced.

In the sanitary washing apparatus 100 according to the present embodiment, the detergent pump 534 is operated for 2 seconds in a 6-second cycle during the intermittent operation.

In the timing chart of the time of rotating bubble sprinkling shown in fig. 45, a graph of the heat exchanger 700 is drawn by a broken line, and this shows that, when the water supplied from the water pump 516 to the bubble tank 532 is at a temperature lower than 20 ℃, the water is heated by the heat exchanger 700 so that the water temperature becomes about 20 ℃ and the water is supplied to the bubble tank 532 in the time of rotating bubble sprinkling. When the water temperature is low, although the foamability is lowered, the water temperature is set to about 20 ℃ by the heat exchanger 700 and supplied, whereby preferable cleaning foam can be generated in the foam tank 532.

In the timing chart in the case of performing the rotating foam discharging shown in fig. 45, the detergent pump 534 is reversed during a period from N2 to N3 before the time N3 at which the rotating foam discharging is started. This is because the detergent pump 534 is a hose pump, and can feed a stable amount of detergent by reversing the direction of the detergent liquid on the outlet side of the pipe by the previous rotation at the position of the pipe pressed by the roller, returning the pressed position to a cylindrical shape, and then rotating the pipe forward.

In the timing chart of fig. 45 when the rotary foam dispensing is performed, the control unit 130 performs drive control so that the dispensing nozzle driving unit 550a is driven from the stop position until it comes into contact with the origin position, and the rotation detection micro switch is pressed down during a period from N11 to N14, which is the time when the rotary foam dispensing is completed, and the nozzle driving unit 550a is returned to the stop position after the origin position of the dispensing nozzle driving unit 550a, which is a stepping motor, is recognized.

In this way, even if the stepping motor of the spray nozzle driving unit 550a causes a slip phenomenon due to an increase in some rotational load or the like and the rotational driving according to the number of driving steps is not performed due to a slip phenomenon caused by an increase in rotational load or the like, and a deviation occurs in the amount of rotation, the stop position, which is the start position of the rotational bubble distribution, can be accurately corrected and reset to start the driving by the origin reset operation of the spray nozzle driving unit 550 a. That is, the rotating foam dispensing can be performed in a position that is always stable.

Further, the rotation detection microswitch pressed by the origin return operation of the spray nozzle driving portion 550a can detect that the detergent is attached to the periphery of the discharge port 550u of the spray nozzle 550 for some reason, and the detergent cannot be driven and rotated until the rotation detection microswitch is pressed. That is, when the rotational foam is dispensed but a signal that the rotation detection microswitch is pressed is not obtained, the flush lamp 223a may be turned on to prompt the flushing operation by the flush switch 223.

In the sanitary washing apparatus 100 of the present embodiment, the time from the time point N3 at which the spreading of the rotary foam starts to the time point N12 at which the spreading of the rotary foam ends is set to about 15 seconds. The setting of about 15 seconds can be changed to about 10 seconds, about 25 seconds, and the like according to the amount of foam to be accumulated according to the size of the toilet 110.

When the time until the rotation detection microswitch is pressed is delayed by about 10 percent or more from the set rotational foam dispersion time, the flush lamp 223a is lighted to display a click and click repeatedly and once blinked, and the flush switch 223 is urged to be pressed to instruct the operation of the flushing operation. For the rinsing operation, the washing water heated to about 40 ℃ by the heat exchanger 700 is flowed and washed for about 3 minutes. By this flushing operation, the foam generating unit 560, the spray nozzle 550, and the like can be flushed with the washing water, so that the detergent on the foam generating unit 560, the spray nozzle 550, and the like can be prevented from adhering to and clogging the holes, and stable foam can be sprayed.

When the detergent or the like solidifies on the spray nozzle 550 and deteriorates the movement thereof, and the time until the rotation detection microswitch is pressed is delayed by about 20% or more from the set rotational foam spraying time, the flush lamp 223a is turned on to display the state of repeatedly flashing twice in a "click, click", "click, and" click "manner, and the operation of pressing the flush switch 223 to perform the flushing operation and cleaning the vicinity of the discharge port 550u of the spray nozzle 550 with a toothbrush or the like is promoted.

In the timing chart of fig. 45 when the rotating foam is spread, the flow path switching chart shows the following operation: at the timings N2 to N3, the supply destination of the washing water from the water jet amount changing unit 516 serving as the water pump in the water circuit of fig. 6 is switched from the nozzle device 800 side to the bubble generating unit 560 side, and at the timings N11 to N13, the supply destination is switched from the bubble generating unit 560 side to the nozzle device 800 side.

That is, at the timings N2 to N3, the controller 130 closes the flow control valve 517 and opens the on-off valve 530a, and at the timings N11 to N13, closes the on-off valve 530a and opens the flow control valve 517. Further, the following configuration may be adopted: instead of the on-off valve 530a, a flow path switching valve is disposed at a branch point where the branch flow path 530 branches from the cleaning water supply flow path 690, and the flow path is switched by the flow path switching valve.

Fig. 46 is a timing chart during a flushing operation of the sanitary washing apparatus 100 according to embodiment 1 of the present disclosure.

When the flush switch 223 of the operation unit 210 is pressed to set the control unit 130 to the flush command mode, the supply destination of the washing water is switched from the nozzle device 800 side to the bubble generation unit 560 side at timings N2 to N3. Then, in about 2 minutes from the time point N3 to the time point N8, the washing water heated to about 40 ℃ by the heat exchanger 700 is supplied to the bubble tank 532 by the water injection amount changing unit 516 serving as the water pump in a state where the detergent pump 534 is stopped, and is discharged from the spray nozzle 550.

In addition, about 1 minute from the time point N8 to the time point N10, the air pump 535 for sending air to the bubble box 532 is operated in addition to the washing water heated to about 40 ℃.

In the flushing operation for flushing and cleaning, only the cleaning water is first fed, and the air pump 535 is operated from the middle of the feeding of the cleaning water, and the flushing is performed while adding the air. Accordingly, most of the detergent components remaining in the bubble box 532 and the flow path are quickly and efficiently discharged from the spray nozzle 550 by the washing water, and then the potential of the bubbles by the air pump 535 is added to wash only the remaining detergent components, so that effective washing can be performed in a short time.

After about 3 minutes of flushing and cleaning at the time points N3 to N10, the detergent pump 534 was rotated in the reverse direction and rotated in the forward direction during the periods N10 to N14, and was caused to perform a standby operation so that the rotating bubble dispersion and the fixed bubble dispersion could be performed normally, thereby automatically ending the flushing operation.

Fig. 47 is a timing chart when fixed foam is dispersed in the sanitary washing device 100 according to embodiment 1 of the present disclosure.

When the manual spill suppression switch 434 of the controller main body 401 is pressed, the detergent pump 534 rotates in reverse for 2 seconds at the time N2 shown in fig. 47, and then starts rotating in forward at the time N3, and the water pump 516 and the air pump 535 are operated to supply detergent, water, and air to the bubble tank 532, thereby generating cleansing bubbles.

The generated cleansing foam is sprayed from the discharge port 550u of the spray nozzle 550 toward the inner surface of the toilet 110. The fixed foam spread to the inner surface of the toilet bowl causes foam to accumulate on the water surface of the toilet bowl 110, thereby suppressing splashing when a male urinates.

The difference between the timing chart in the fixed foam dispensing shown in fig. 47 and the timing chart in the rotary foam dispensing described above with reference to fig. 45 is that the direction of the discharge port 550u is rotated by driving the dispensing nozzle driving portion 550a in the rotary foam dispensing, whereas the direction of the discharge port 550u is rotated without driving the dispensing nozzle driving portion 550a in the fixed foam dispensing, and the fixed foam dispensing is performed in a fixed state. Except for the above, the timing chart of fig. 47 is the same as that of fig. 45, and redundant description with fig. 45 is omitted.

Note that, in fig. 45 to 47, the origin position, the stop position, and the end position are shown, for example, in fig. 37, with the origin position being a position of 0 degree (directly behind), the stop position being a position of 20 degrees (clockwise), and the end position being a position of 340 degrees (clockwise). However, the present disclosure is not limited to this, and for example, the origin position may be a position of 5 degrees (clockwise from the front rear), the stop position may be a position of 60 degrees (clockwise from the front rear), and the terminal position may be a position of 300 degrees (clockwise).

In the fixed foam dispensing of fig. 47, when an instruction for the fixed foam dispensing is issued, the dispensing nozzle driving portion 550a immediately performs the fixed foam dispensing in a state where the direction of the ejection port 550u is stopped at a stop position rotated about 60 degrees clockwise from the right back. In this way, when the direction of the discharge port 550u is set to a standby state in advance at a position of about 60 degrees, which is a stop position, by driving the spray nozzle driving portion 550a, after the fixed foam is instructed to be sprayed, the cleaning foam is immediately discharged to the toilet bowl inner surface without performing a moving operation of the spray nozzle 550, and a foam height necessary for suppressing the splash-out can be quickly formed on the water surface in the toilet bowl before the male urine starts.

In particular, the direction of the discharge port 550u at the stop position is set to a position of 50 to 70 (about 60) degrees where the cleansing foam reaches the slope of the toilet inner surface and the cleansing foam reaching the slope flows and falls to the water surface so as to rotate on the slope in the toilet, whereby the cleansing foam can be formed on the whole of the water surface quickly.

In the sanitary washing apparatus 100 according to the present embodiment, the rotating foam application described in fig. 45 can be set to be performed not only when the manual foam application switch 433 of the controller main body 401 is pressed down, but also automatically after the toilet or stool, that is, after the toilet is used. Furthermore, it can be set so that the rotating foam spreading is automatically performed every lapse of a fixed time. By automatically spreading the rotating foam after the toilet is used or every predetermined time, it is possible to make it more difficult for dirt on the inner surface of the toilet bowl to adhere thereto and to make it easier for the dirt to fall down.

In addition, by automatically performing the rotating foam spreading every time a fixed time elapses, stains near the waterline in the toilet 110, particularly water stain circles, can be suppressed.

When the sanitary washing apparatus 100 of the present embodiment is set to perform the automatic operation of spreading the rotating foam after using the toilet, the rotating foam is spread for about 15 seconds after about 60 seconds by the detection of the seating sensor 330 when the user is standing up from the toilet seat 300. When a male who is not seated on the toilet seat urinates, the rotating foam is dispersed for about 15 seconds after about 60 seconds when the toilet seat 300 is closed, as detected by the toilet seat opening/closing sensor 331.

The above-described setting of about 60 seconds can be changed to about 10 seconds or 25 seconds or the like by the switch of the controller main body 401. Thus, the user can adjust the time from the standing of the toilet seat to the start of the rotating foam dispensing to a time appropriate for the user's use method.

Further, the setting of the rotational foam dispensing time for about 15 seconds can be changed to 10 seconds or 25 seconds by the switch of the controller main body 401. This allows the amount of foam to be accumulated to be adjusted according to the size of the toilet 110.

In addition, the sanitary washing apparatus 100 according to the present embodiment can be set so that not only the fixed foam spreading described in fig. 47 is performed when the manual spill suppression switch 434 of the controller main body 401 is pressed, but also the fixed foam spreading is automatically performed when the toilet seat 300 is opened. By configuring such that the fixed foam is automatically dispersed when the toilet seat 300 is opened when a male urinates, splashing can be suppressed when a male urinates.

When the sanitary washing apparatus 100 of the present embodiment is set to perform the automatic operation of spreading the fixed foam when the toilet seat 300 is opened, the fixed foam is spread for about 15 seconds immediately after the toilet seat 300 is opened when the toilet seat 300 is opened.

Further, the setting of the fixed foam dispersion time of about 15 seconds can be changed to 10 seconds or 25 seconds by the switch of the controller main body 401. This allows the amount of foam to be accumulated to be adjusted according to the size of the toilet 110.

Fig. 48 is a diagram showing a configuration of automatic operation for selectively setting fixed foam dispensing and rotary foam dispensing in embodiment 1 of the present disclosure.

The setting of the preference can be selected each time the automatic selection setting switch 236 of the operation unit 210 is pressed. The automatic rotation and distribution lamp 236a after use, the automatic rotation and distribution lamp 236b for every lapse of a fixed time, and the automatic fixation and foam distribution indicator lamp 236c for when the toilet seat is turned on are disposed beside the automatic selection and setting switch 236, and the setting thereof can be changed for three kinds of automatic operation in accordance with the direction indicated by the arrow in fig. 48 every time the automatic selection and setting switch 236 of the operation portion 210 is pressed.

H0 showing that the automatic rotating distribution light 236a after use, the automatic rotating distribution light 236b every lapse of a fixed time, and the automatic fixed foam distribution indicator light 236c all are in the light-off state when the toilet seat is turned on means that any one of the three automatic operations is in the off state. When the setting switch 236 is automatically selected once from this state, only H1 of the automatic rotation scattering lamp 236a after use is turned on.

In this way, the setting can be sequentially shifted to H2 and H3 … H6 every time the automatic selection setting switch 236 is pressed once, and any one of the three types of automatic operation can be set to the on state at H7. In the lamp display of fig. 48, the o flag indicates a state where the lamp is turned off and the "off" is set, and the ● flag indicates a state where the lamp is turned on and the "on" is set.

For example, in fig. 48, when setting the automatic operation of the rotary bubble distribution every time a fixed time elapses, that is, H2, H4, H6, and H7, the rotary bubble distribution shown in the timing chart of fig. 45 is automatically executed once every about 3 hours, and it is possible to suppress stains near the waterline in the toilet 110, particularly, water stain circles.

Further, the above-described setting of about 3 hours can be changed to about every 6 hours, about every 12 hours, or about every 24 hours, etc. by the switch of the controller main body 401, and adjustment can be made in accordance with the situation of the user who wants to reduce the number of times of automatic operation when the user is not present for a long period of time.

(embodiment 2)

Fig. 51 is a perspective view of a sanitary washing apparatus 1000 according to embodiment 2 of the present disclosure.

The sanitary washing apparatus 1000 according to embodiment 2 is a so-called toilet-integrated sanitary washing apparatus in which the toilet 110 and the main body 200 are integrally formed.

The sanitary washing apparatus 100 according to embodiment 1 is a so-called rear mount type sanitary washing apparatus in which a main body 200 independent of a toilet 110 is installed in the toilet 110.

The sanitary washing apparatus 1000 according to embodiment 2 also has a configuration for performing a foam scattering operation, as in the sanitary washing apparatus 100 according to embodiment 1.

The sanitary washing apparatus 1000 according to embodiment 2 is different from the sanitary washing apparatus 100 according to embodiment 1 in that it includes a flush valve (not shown) that enables toilet flushing after urination or toilet flushing after urination by using the after-urination flush switch 910 or the after-defecation flush switch 920 of the remote controller 400 as an operation unit after using a toilet.

As shown in fig. 48, H1, H4, H5, and H7, when the automatic operation of foam spreading shown in fig. 45 is set after a predetermined time after use, the foam spreading amount on the inner surface of the toilet bowl when the after-stool washing switch 920 is operated is made larger than the foam spreading amount when the after-urine washing switch 910 is operated, and by adopting the above configuration, it is possible to make it more difficult for contamination-prone toilet waste after stool to adhere.

As in embodiment 1, in the case of the sanitary washing apparatus 100 in which the main body 200 is mounted to the toilet 110, the signal for washing the toilet 110 does not enter the control unit 130, and the control unit 130 cannot obtain the signal information on whether to wash after shit or to wash after shit. Therefore, the automatic foam dispensing amount after using the restroom cannot be changed according to the difference of stool and urine.

The sanitary washing apparatus 1000 according to embodiment 2 is configured such that the remote controller 400 as the operation unit is provided with the post-urination rinse switch 910 and the post-defecation rinse switch 920, and thus the control unit 130 can change the automatic foam dispensing amount after using the toilet on the basis of the signal. The control unit 130 is configured to increase the amount of foam sprayed to the inner surface of the toilet bowl when the after-urination flush switch is operated, compared to when the after-urination flush switch is operated. This makes it possible to make it more difficult for contamination after defecation to adhere. Accordingly, the foam can be more accurately dispersed according to the use condition without wasting the detergent, and the sanitary washing apparatus 1000 in which dirt on the inner surface of the toilet stool 110 is less likely to adhere can be realized.

Industrial applicability

As described above, according to the present disclosure, it is possible to provide a sanitary washing device in which a foam film is formed in a range from the front to the inner surface of the toilet bowl in the rear direction to suppress the adhesion of dirt. Thus, the present disclosure is also applicable to sanitary washing apparatuses for washing the private parts of the human body, and other applications such as devices having a spray nozzle, and is useful.

Description of the reference numerals

100. 1000 sanitary cleaning device; 110 toilets; 115 a discharge port; 120 a deodorizing means; 130 a control unit; 200 a main body; 201 rear body shell; 202 a main body housing; 210 an operation section; 211 an infrared ray receiving unit; 216 detergent level confirmation window; 217 sleeve cover; 220 operating a switch; 221 a hip washing switch; 223a flush switch; 223a flushing lamp; 230 setting a switch; 231 warm water temperature switch; 236 automatic selection setting switch; 236a automatically rotating the dispensing lamp after use; 236b automatically rotate the scatter lights every fixed time; 236c automatically fixing the foam dispersion display lamp when the toilet seat is opened; 240 a body fixing plate; 241 long holes for position adjustment; 242 main body mount/dismount button; 243 magnet; 244 attaching or detaching the sensor; 250 sleeve part shells; 300 a toilet seat; 320, a toilet cover; 330 a seating sensor (seating detection unit); 331 a toilet seat opening/closing sensor (toilet seat opening/closing detection unit); 360 a toilet seat cover rotating mechanism; 400 remote controller; 401 a controller main body; 402 a transmission unit; 410 a hip washing switch; 411 lower body washing switch; 412 stop switch; 413 moving the cleaning switch; 414 rhythm cleaning switch; 415 cleaning an intensity switch; 416 a wash position switch; 417 a scatter switch; 418 cover the switch; 419 a toilet seat switch; 421 a display lamp; 422 position display lamp; 430 nozzle cleaning switch; 431 a hip drying switch; 432 a powered deodorizing switch; 433 manual foam application switch; 434 manual spill-inhibiting switch; a 435 warm water temperature switch; 436 toilet seat temperature switch; 437 eight hours switch off; 438 a power saving switch; 439 automatic opening and closing switch of toilet cover; 450 human detection sensors; 500 a cleaning part; 501, a chassis; 501a water pump setting part; 501b, a foot part; 502 connecting tube; 510 water supply connection port; 511 a filter valve; a 512 one-way valve; 513 constant flow valve; 514 electromagnetic water stop valve; 515 relief valve; 516 water pump (water spray amount changing unit); 516a motor section; 516b a linkage portion; 516c a piston portion; 516d a water suction port; 516e an outlet port; 517 flow regulating valve; 530 branching the flow path; 530a opening and closing valve; 531 a one-way valve; 531b one-way valve; 532 foam box; 532a foam tank water inlet part; 533 a detergent tank; 534 a detergent pump; 535 air pump; 536 a detergent case cover; 537 detergent injection port; a 550 spreading nozzle; 550a dispensing nozzle driving part; 550b inlet flow path; 550c a main body; 550d rotating the nozzle; a 550eO o-ring; a 550f O o-ring; 550h inlet holes; a 550n axis; a 550u outlet; 550z splash shield; 560 a foam generating part; 561 a detergent pump hose; 562 foam tank hose; 600 auxiliary water tanks; 601 a water inlet; 602, a water outlet; 603 atmosphere opening port; 610 a tank main body; 611 front water tank; 612 a rear water tank; 613 an atmosphere opening part; 613a buffer part; 614 dividing walls; 615a water inlet tank; 615a upper surface opening; 616 a storage tank; 617 barrier; 618 a rectifying rib; 620 water level detection sensor; 621 a common electrode; 622 water level electrodes; 623 upper limit electrode; 624 lower limit electrode; 630 a water inlet temperature sensor; 690 washing water supply flow path; 700 heat exchanger; 701, a shell; 702 a flat plate heater; 703 hot water outlet member; 710 a front face member; 711 water inlet; 712 outlet of hot water; 713 inlet flow path; 714 a slit; 715 heating the flow path; 716 a partition rib; 717 water through holes; 718 is protruded; 720 a back member; 730 hot water temperature sensor; 731 excessive temperature rise sensor; 750 a buffer water tank; 800 a nozzle arrangement; a 801 nozzle cap; an 802 connection tube; 810 a support portion; 811 bottom edge portion; 812 a tilted part; 813 longitudinal edge portions; 814 a guide rail; 815 rack guide parts; 816, a holding part; 817 water supply connection; 820 nozzle portion; 830 a nozzle body; 831 hip washing nozzles (washing nozzles); 832 lower body washing nozzles; 833 a nozzle cleaning section; 834 a buttocks washing ejection port; 835a hip cleaning flow path; 835a rectifying plate; 836 lower body cleaning ejection hole; 837 a lower body washing flow path; 838 nozzle cleaning spray port; 839 cleaning the flow path with the nozzle; 840 a nozzle boot; 841 a nozzle boot main body; 842 a connecting member; 843 connecting pieces; 843a connecting projection; 844 ejection opening; 845 drainage port; 850 connecting part; 851 are coupled; 851a front concave part; 851b a rear recess; 860 a cleaning nozzle driving part; 861 a flexible rack; 862 pinion gears; 863 drive motor; 910 washing the switch after urination; 920 after defecating, the switch is washed.

Claims (5)

1. A sanitary washing device, wherein,

this sanitary belt cleaning device includes:

a main body provided to a toilet;

a foam generating section for generating a cleaning foam;

a spray nozzle for spraying washing water or washing foam to an inner surface of the toilet bowl;

a spray nozzle driving unit for driving to rotate a direction of a discharge port of the spray nozzle; and

a control unit for controlling at least the operation of the spray nozzle driving unit,

the control unit is configured to be capable of executing a rotating foam dispensing mode in which the cleansing foam is dispensed into the toilet bowl while being driven to rotate the direction of the discharge port of the dispensing nozzle, and a flushing mode in which the cleansing water is discharged from the dispensing nozzle through the foam generating unit,

the distribution nozzle is provided to the main body such that a rotation axis of the discharge port of the distribution nozzle driven to rotate is inclined in a front-rear direction and a left-right direction,

the inclination in the front-rear direction is an inclination from below the rotation axis to the front side of the toilet bowl, the inclination in the left-right direction is an inclination from below the rotation axis to the side of the washing nozzle for washing the human body,

the control unit is configured to change a momentum of discharging the washing water or the washing foam according to a rotation angle of the discharge port of the spray nozzle.

2. The sanitary washing device according to claim 1,

the control unit disperses the rotating foam by at least one reciprocating rotation operation when the rotating foam is dispersed from the dispersion nozzle to the toilet bowl, and in this reciprocating rotation operation, the dispersion nozzle driving unit is rotated forward so that the direction of the discharge port of the dispersion nozzle passes from the rear of the toilet bowl to the front of the toilet bowl and reaches the rear of the toilet bowl, and the dispersion nozzle driving unit is rotated backward so that the direction of the discharge port of the dispersion nozzle passes from the rear of the toilet bowl to the front of the toilet bowl and returns to the rear of the toilet bowl.

3. Sanitary washing arrangement according to claim 1 or 2,

the sanitary washing device is also provided with a human body detection sensor for detecting the condition that a user enters or exits the toilet room,

the control unit distributes the rotary foam to the toilet bowl when the human body detection sensor detects that the user enters the toilet room.

4. Sanitary washing arrangement according to claim 1 or 2,

the sanitary washing device also comprises a water spraying amount changing part controlled by the control part and an opening and closing valve controlled by the control part,

the foam generating part includes:

a bubble tank to which the washing water is supplied by the water spray amount changing unit by opening the open/close valve;

a detergent tank;

a detergent pump for supplying detergent of the detergent tank to the bubble tank; and

an air pump for supplying air to the foam tank,

the washing water or the washing foam of the foam tank is sprayed from the spray nozzle.

5. The sanitary washing device according to claim 4,

the control unit opens the on-off valve in a state where the detergent pump of the bubble generation unit is stopped in the flushing command mode, supplies the washing water to the bubble tank by the water spray amount changing unit, and discharges the washing water from the spray nozzle.

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