JP2001227037A - Nozzle device of sanitary cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To excellently clean a cleaning nozzle tip part without particularly lengthening time up to starting cleaning of a bidet part after operating an operation means. SOLUTION: This nozzle device 3 is provided with a cleaning nozzle 31 for injecting wash water of a proper temperature toward the bidet part, a base frame 32 for supporting the cleaning nozzle 31 so as to be capable of advancing and retreating, a driving means 33 for advancing and retreating the cleaning nozzle 31 between an origin position and a bidet part cleaning position along the base frame 32 and a nozzle cleaning cover 34 arranged in a state opposed to the upper surface side of the cleaning nozzle 31, and is constituted so as to clean a tip part of the cleaning nozzle 31 simultaneously with advancing and retreating operation of the cleaning nozzle 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a sanitary washing apparatus for spraying washing water at an appropriate temperature toward a local part of a human body.

[0002]

2. Description of the Related Art Conventionally, the structure of a sanitary washing device that cleans a part of a human body in a sanitary manner by injecting washing water at an appropriate temperature is, for example, a valve unit connected to a water supply source and the water supply source. A heating means for heating the washing water supplied through the valve unit to an appropriate temperature, and a nozzle device having a washing nozzle for jetting the washing water heated to an appropriate temperature by the heating means toward a local part of a human body, A flow control valve for controlling the flow rate of the washing water supplied to the nozzle device, and the valve unit, the heating device, the nozzle device, And control means for driving and controlling the flow control valve.

[0003] Then, the sanitary washing device having the above-described structure provides:
When performing local cleaning, the valve unit is opened and water is supplied to the heating means with the cleaning nozzle of the nozzle device advanced to a predetermined local cleaning position (poster cleaning position or bidet cleaning position), By supplying the appropriate temperature washing water spouted from the heating means with the water supply to the washing nozzle through a flow control valve and injecting it toward a local portion,
Local cleaning was performed.

[0004]

However, at the time of cleaning the local area, the cleaning nozzle of the nozzle device advances to a predetermined local cleaning position, and the tip and the local area face each other. There has been a problem that dirt and the like washed off from the local part by the local cleaning adhere to the tip part of the washing nozzle and the like, and the tip part is soiled. Also,
Because it is not hygienic to leave the cleaning nozzle dirty while leaving it unclean, before local cleaning or after local cleaning,
The tip of the cleaning nozzle is cleaned.

[0005] As a method of cleaning the cleaning nozzle, for example, a cover body or the like is provided above and corresponding to the tip of the cleaning nozzle housed at the origin position, and washing water is sprayed upward from the tip. Then, the distal end portion is cleaned using cleaning water that rebounds upon hitting the cover body or the like.

However, in the case where the cleaning nozzle tip is cleaned as described above, the cleaning operation performed before the local cleaning requires as little time as possible from when the user operates the operating means to when the local cleaning is started. At present, usually only about one second is performed in order to shorten the length. However, it is almost impossible to sufficiently wash away dirt and the like adhering to the tip of the cleaning nozzle by cleaning for about one second, and as a result, a sufficient cleaning effect cannot be expected, and the cleaning nozzle is put in a sanitary state. It was difficult to keep.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a method for cleaning the tip of a cleaning nozzle satisfactorily without increasing the time from operating the operating means to starting local cleaning. It is an object of the present invention to provide a nozzle device of a sanitary washing device capable of performing the above.

[0008]

According to the present invention, there is provided a sanitary washing apparatus provided with a functional unit such as a nozzle unit for performing local washing, the nozzle unit comprising: A cleaning nozzle that sprays toward a local area, a base frame that supports the cleaning nozzle so as to be able to move forward and backward, a driving unit that moves the cleaning nozzle forward and backward between an origin position and a local cleaning position along the base frame; A nozzle cleaning cover provided so as to face the upper surface side of the cleaning nozzle, wherein the cleaning nozzle tip is cleaned simultaneously with the reciprocating operation of the cleaning nozzle.

[0009] Further, the nozzle cleaning cover is configured to move forward and backward integrally with the cleaning nozzle in a state where the nozzle cleaning cover faces the upper surface of the cleaning nozzle.

[0010] Further, a pair of ridges are projected from the inner peripheral surface on the base end side of the nozzle cleaning cover, and a guide groove is formed on the side surface of the cleaning nozzle from the base end side toward the distal end side. The protrusion is engaged with the guide groove, and a compression spring is interposed between the base end of the nozzle cleaning cover and the base end of the cleaning nozzle to reduce the elastic force of the compression spring. The nozzle cleaning cover and the cleaning nozzle are configured to be integrally advanced and retracted by utilizing them.

Further, after the nozzle cleaning cover has advanced to a predetermined position, only the cleaning nozzle is advanced to the local cleaning position.

According to the present invention, the cleaning nozzle tip is cleaned at the same time as the cleaning nozzle moves forward and backward, so that the cleaning time of the cleaning nozzle tip can be lengthened. The tip of the washing nozzle can be satisfactorily washed and kept in a sanitary state, and the time from the operation of the operating means to the start of local washing can be minimized.

[0013]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 shows a schematic configuration diagram of a sanitary washing device, and a sanitary washing device A includes a valve unit 1 connected to a water supply source (not shown) as shown in FIG.
A heating unit 2 for heating washing water supplied from the water supply source via a valve unit 1 to an appropriate temperature, and washing water heated to an appropriate temperature by the heating unit 2 toward a local part of a human body to wash a local part. Nozzle device 3 that performs
A flow control valve 4 for controlling the flow rate of the washing water supplied to the
A control unit 7 for driving and controlling the valve unit 1, the heating unit 2, the nozzle unit 3, and the flow control valve 4 in response to inputs from the operating unit 5 of the nozzle device 3 and the setting unit 6 for setting the hot water temperature and the flow rate; It is provided with.

The valve unit 1, the heating means 2, the nozzle device 3, the flow control valve 4, and the control means 7 are housed in hollow casings attached to the upper back of a toilet (not shown), respectively. Further, the operation means 5,
The setting means 6 is arranged on an operation panel provided on the upper surface of the casing.

Next, the configurations of the valve unit 1, the heating means 2, the nozzle device 3, and the flow control valve 4 will be described. First, the valve unit 1 includes a pressure reducing valve, an on-off valve, and the like, and controls the supply of cleaning water to the heating means 2 by the on-off operation of the on-off valve.

The heating means 2 is provided with a heater, a temperature sensor, and the like. The control means 7 compares the temperature detected by the temperature sensor with the temperature set by the setting means 6, and outputs the result. By controlling the power supply to the heater correspondingly, the cleaning water is heated to an appropriate temperature.

Next, the configuration of the nozzle device 3 will be described with reference to FIGS. 2 to 8 and FIG. As shown in FIGS. 2, 3, and 12, the nozzle device 3 includes a cleaning nozzle 31 for injecting a proper temperature of cleaning water supplied from the heating means 2 through the flow control valve 4 toward a local portion, A triangular base frame 32 for supporting the cleaning nozzle 31 so as to be able to advance and retreat,
A driving unit 33 for moving forward and backward along the cleaning nozzle 31;
And a nozzle cleaning cover (hereinafter, simply referred to as a cleaning cover) 34 attached to the front end portion of the base frame 32 so as to cover the upper surface of the base frame 32.

As shown in FIG. 4, the cleaning nozzle 31 has a nozzle head 31a formed by forming a first injection hole a for washing the bottom and a second injection hole b for cleaning the bidet at predetermined intervals. And a water inlet 31b in which the first and second inflow pipes c and d are arranged in a vertical direction, and a nozzle in which the inside is vertically divided by a partition wall e to form first and second water passages f and g. And the nozzle head 3
1a is joined to the distal end of the nozzle cylinder 31c, and the water inlet 31b is joined to the proximal end of the nozzle cylinder 31c by means such as ultrasonic welding. Note that the first injection hole a is the first injection hole a.
And the second injection hole b is connected to the second water passage g and the second water inlet pipe d, respectively.

Next, as shown in FIGS. 2 and 3, guide rails 32a, 32a are provided on both ends of the upper side of the inclined surface of the base frame 32 (in the left-right direction in FIG. 3).
A hollow cylindrical guide member 32b through which the cleaning nozzle 31 is inserted is directed upward at the tip (right side in FIG. 12) as shown in FIGS. 8B and 12. Is formed. Then, the cleaning nozzle 31 is inserted through the guide member 32b, and the water inlet 3 of the cleaning nozzle 31 is inserted.
Holding portion 31d provided below 1b (only one is shown in FIG. 2)
The cleaning nozzle 31 is attached to the base frame 32 so as to be able to advance and retreat by holding the guide rail 32a.

Subsequently, the driving means 33 is shown in FIG.
As shown by reference numerals 3 and 12, an electric motor 33a fastened and fixed to one side surface (the left side in FIG. 3) of the base end side (the right side in FIG. 2) of the base frame 32 by using a screw or the like;
and a pulley 33b rotatably mounted on the front and rear ends (up and down in FIG. 3) of the other side (right side in FIG. 3) of the base frame 32.
d, and a timing belt 33e stretched between them. As shown in FIG. 2, the motor 33a is driven to rotate while the enlarged portion 33e1 of the timing belt 33e is fitted to an arm 31e protruding above the water inlet 31b of the cleaning nozzle 31, as shown in FIG. The nozzle 31 can be moved forward and backward along the base frame 32. 33f is a tension mechanism for the timing belt 33e.

Next, the cleaning cover 34 is shown in FIGS.
As shown in FIG. 12B and FIG. 12, a reflecting portion 34 provided so as to face the nozzle head 31a of the cleaning nozzle 31.
a, and a semicircular guide portion 34 connected to the reflection portion 34a
and a size that can cover substantially half of the tip side of the cleaning nozzle 31. As shown in FIGS. 5 to 7 and FIG. 8A, a pair of ridges 34c, 34c are provided on the inner peripheral surface on the base end side of the guide portion 34b so as to face each other. I have.

Then, as shown in FIG. 8B, with the guide portion 34b covering the outer periphery of the guide member 32b at the tip of the base frame 32, the ridges 34c, 34c are
As shown in FIGS. 6, 7 and 8A, the cleaning nozzle 31
Are engaged with guide grooves 31f, 31f formed in a predetermined length from the base end side toward the front end side on the side face of
The base end of the guide 34b and the water inlet 31b of the washing nozzle 31
As shown in FIGS. 3 and 6, the compression spring 35 is interposed between the cleaning spring 34 and the compression spring 3.
Utilizing the elastic force of No. 5, the protrusions 34c, 34c are connected to the guide grooves 31f of the cleaning nozzle 31, and the end portions 31f1, 31f of the 31f.
In a state where the cleaning nozzle 31 is constantly locked at 31f1, the cleaning nozzle 31 can be integrally moved forward and backward.

Next, the structure of the flow control valve 4 will be described with reference to FIGS. As shown in FIG. 9, the flow control valve 4 includes a housing 41, an electric motor 42 provided on one end side (the left side in FIG. 9), and the housing 41.
And a rotor 43 that rotates within a predetermined angle range by driving the electric motor 42 in a state accommodated therein.

As shown in FIG. 9, an inlet 41a for washing water discharged from the heating means 2 is provided in the housing 41.
And first and second outflow pipes 41 for feeding the washing water flowing from the inflow port 41 a to the washing nozzle 31 of the nozzle device 3.
b, 41c and the first and second outflow pipes 41b, 41c
There are provided first and second outlets 41d and 41e for communicating between the housing 41 and the inside of the housing 41. In addition, the first,
The second outflow pipes 41b and 41c are individually connected to the first and second inflow pipes c and d of the cleaning nozzle 31 via water passage pipes (not shown).

On the other hand, as shown in FIGS. 9 and 11, the rotor 43 housed in the housing 41 includes a first valve body 43a facing the first outlet 41d, and a second outlet 4a.
1e and a second valve body 43b opposed thereto, and a communication groove 43c having a predetermined depth is formed between the first and second valve bodies 43a and 43b. The first valve body 4
10 and 11 are provided on the outer peripheral surfaces of the second valve body 3a and the second valve body 43b.
As shown in FIG. 10, notches 43d and 43e are respectively recessed at predetermined depths and widths along the axial direction, and as shown in FIG. 10, a circumferential direction of the first valve body 43a is provided. In the circumferential direction of the second valve element 43b, a flow groove 43f is formed in the circumferential direction of the second valve body 43b from the position of the notch 43e in the clockwise direction.
g are formed respectively.

As shown in FIGS. 9 and 10, the flow grooves 43f and 43g are formed to have a large depth and a large width at portions communicating with the notches 43d and 43e. Further, it is formed so that the depth dimension becomes shallower and the width dimension becomes narrower as it goes away from the notches 43d and 43e.

Next, FIGS. 1, 6, 7 and FIGS.
The operation of the present invention will be described with reference to FIG. First, in performing the local cleaning, when a cleaning switch (not shown cleaning switch or bidet cleaning switch) of the operation means 5 is turned on, an opening / closing valve (not shown) of the valve unit 1 is operated by a command from the control means 7. It is opened and water is supplied to the heating means 2 from the water supply source,
From the heating means 2, washing water of an appropriate temperature is discharged to the flow control valve 4 side in accordance with the water supply amount.

The cleaning switch (not shown) of the operating means 5 is set to O
At the stage of N, the first and second valve bodies 43 of the flow control valve 4
a and 43b are self-cleaning positions, that is, FIG.
As shown by, the notches 43d and 43e face the first and second outlets 41d and 41e, respectively.
The appropriate-temperature washing water discharged from the heating means 2 is supplied to the flow inlet 41a of the flow control valve 4 → the communication groove 43c of the rotor 43 → the first,
Nozzle device via cutouts 43d, 43e of second valve bodies 43a, 43b → first and second outlets 41d, 41e, and from first and second outlet pipes 41b, 41c via a not-shown water pipe. 3 is sent.

The first and second outflow pipes 4 of the flow control valve 4
The appropriate-temperature washing water supplied from the first and second inflow pipes c and d of the washing nozzle 31 flows from the first and second inflow pipes c and d into the first and second water passages f and g. Then, the gas is ejected upward from the first injection hole a and the second injection hole b which are independently communicated with the first and second water passages f and g, respectively.

At this time, the first and second injection holes a, b
As shown in FIG. 12, a reflection portion 34a of the cleaning cover 34 cooperating with the cleaning nozzle 31 is present above, so that the cleaning water collides with the reflection portion 34a and rebounds. 1, fall onto the nozzle head 31a in which the second injection holes a and b are perforated, and clean the nozzle head 31a satisfactorily.

At the same time as the opening / closing valve of the valve unit 1 is opened, the motor 33a constituting the driving means 33 of the nozzle device 3 is activated by a command from the control means 7, and is connected to the timing belt 33e. Cleaning nozzle 3
1 is advanced gradually along the base frame 32 as shown in FIG.

With the advance of the cleaning nozzle 31, the cleaning cover 34 covering the tip side of the cleaning nozzle 31
Pressed by the elastic force of a compression spring 35 inserted between the base end and the water inlet 31b of the washing nozzle 31, FIG.
As shown at 13, the protrusions 34c, 34c protruding from the inner peripheral surface on the base end side of the cleaning cover 34 come into contact with the guide member 32b at the distal end of the base frame 32 (hereinafter, referred to as the advance limit position). It advances together with the cleaning nozzle 31.

At this time, the ridges 34c, 34c protruding from the inner peripheral surface on the base end side of the cleaning cover 34 are connected to the end portions of the guide grooves 31f formed in the side surface of the cleaning nozzle 31, as shown in FIG. Since the cleaning cover 34 is locked at 31f1 by the elastic force of the compression spring 35, the cleaning cover 34 can be advanced integrally with the cleaning nozzle 31.

When the cleaning cover 34 has advanced to the advance limit position shown in FIGS. 7 and 13, the on-off valve of the valve unit 1 is temporarily closed by a command from the control means 7.

The cleaning nozzle 31 is provided with a cleaning cover 34.
The compression spring 35 inserted between the water inlet 31b and the base end of the cleaning cover 34 even after the water has advanced to the advance limit position.
And continues to advance to the posterior washing position shown in FIG. 14 or the bidet washing position shown in FIG. 15 in accordance with the washing switch that has been turned ON.

At this time, the advancement of the cleaning cover 34 is hindered by the protrusions 34c abutting on the guide members 32b of the base frame 32, but the cleaning nozzle 31 is moved to the side as shown in FIG. The ridge 3 of the cleaning cover 34 engaged with the formed guide groove 31f.
Guided by 4c, it is possible to smoothly and satisfactorily advance to the bottom cleaning position or the bidet cleaning position.

When the washing nozzle 31 advances to the posterior washing position or the bidet washing position, the motor 33a of the driving means 33 stops according to a command from the control means 7, and the advance of the washing nozzle 31 is terminated.

Further, the cleaning nozzle 31 is provided with the cleaning cover 3.
During the advance from the advance limit position 4 to the posterior washing position or the bidet washing position, the rotor 43 of the flow control valve 4
17A, the minimum (MIN) position of the flow groove 43f of the first valve body 43a is changed from the self-cleaning (SC) position shown in FIG. 16 to the first outlet 41d.
18 (at the time of washing the hips) or FIG.
As shown in (b), the flow groove 43g of the second valve body 43b
Is rotated to a position (at the time of bidet cleaning) in which the minimum (MIN) position of the second position coincides with the second outlet 41e to prepare for the local cleaning operation.

As described above, in the nozzle device 3 of the present invention, while cleaning the nozzle head 31a of the cleaning nozzle 31, the cleaning nozzle 31 and the cleaning cover 34 covering the tip side of the cleaning nozzle 31 are compressed by the compression spring. Since the cleaning nozzle 31 is advanced integrally using the elastic force of the nozzle 35, the nozzle head 31a can be pre-cleaned while the cleaning nozzle 31 advances from the origin position to the advance limit position of the cleaning cover 34. As a result, the nozzle head 31a can be effectively cleaned, and the cleaning nozzle 31 can be used in a sanitary state.

As described above, the nozzle head 31a
The cleaning nozzle 31 is advanced to a predetermined local cleaning position while performing the pre-cleaning, so that the time from when the cleaning switch (not shown) of the operating means 5 is operated to when the local cleaning is started can be shortened. (When the advance time of the cleaning nozzle 31 is set in accordance with the cleaning time of the nozzle head 31a, the nozzle head 31a
If the cleaning time is short, the advancement time of the cleaning nozzle can be shortened).

When the washing nozzle 31 has advanced to the posterior washing position or the bidet washing position as described above, the opening / closing valve of the valve unit 1 is opened again by a command from the control means 7, and a water supply source (not shown) To heating means 2
In addition to the above, the washing means 2 discharges washing water at an appropriate temperature from the heating means 2 to the flow control valve 4 side in accordance with the water supply amount.

The appropriate temperature washing water spouted from the heating means 2 flows through the inlet 41 a of the flow control valve 4 through the housing 41.
17A, at the time of washing the buttocks, as shown in FIG. 17A, the communication groove 43c of the rotor 43 → the notch 43d of the first valve body 43a → the flow groove 43f of the first valve body 43a → the first.
Is supplied from the first outlet pipe 41b to the nozzle device 3 through a water passage pipe (not shown). Also,
At the time of bidet cleaning, as shown in FIG.
3 communication groove 43c → notch portion 43e of second valve body 43b →
Flow groove 43g of second valve body 43b → second outlet 41e
Is supplied to the nozzle device 3 from the second outflow pipe 41c via a water passage pipe (not shown).

The appropriate-temperature washing water supplied from the flow control valve 4 through a water pipe (not shown)
The water flows into the first water passage f from the first inflow pipe c of the washing nozzle 31, and is jetted toward the local part from the first spray hole a for washing the hips which is in communication with the first water passage f. And sanitarily clean the local area. Further, at the time of bidet cleaning, the second injection pipe d of the cleaning nozzle 31 flows into the second water passage g from the second inflow pipe d of the cleaning nozzle 31, and flows from the second injection hole b for bidet cleaning communicating with the second water passage g. Injected towards a local area to clean the local area hygienically.

At the same time as opening and closing the opening and closing valve of the valve unit 1, the rotor 43 of the flow control valve 4 is moved to the minimum (MIN) of the flow groove 43f of the first valve body 43a shown in FIG. 17) From the state where the position coincides with the first outlet 41d, as shown in FIG. 17 (c), it is gradually rotated so as to coincide with the maximum (MAX) position, and at the time of bidet cleaning, the flow rate is controlled. The rotor 43 of the valve 4 is
From the state where the minimum (MIN) position of the flow groove 43g of the second valve body 43b shown in FIG. 18B matches the second outlet 41e, as shown in FIG. MA
X) By gradually rotating the cleaning water so that the positions match, local cleaning can be performed while gradually changing the flow rate of the cleaning water.

At the time of washing the buttocks, the second outlet 41e is used.
As shown in FIGS. 17B and 17D, the second valve body 4
3b, and when the bidet is washed, the first
As shown in FIGS. 18 (a) and (c), the outflow port 41d is closed by the second valve body 43a, so that the washing water is discharged from the second injection hole b for bidet washing at the time of washing the buttocks. There is no spouting or spouting of the washing water from the first jet hole a for buttocks washing during bidet washing.

Next, the operation of returning the cleaning nozzle 31 to the home position after the local cleaning will be described. To end the local cleaning, when a stop switch (not shown) of the operation means 5 is turned on, the on-off valve of the valve unit 1 is closed by a command from the control means 7.

At the same time, the motor 33a of the driving means 33 is activated by a command from the control means 7 to move the washing nozzle 31 to the buttocks washing position shown in FIG.
From the bidet cleaning position shown in FIG. 15, it is gradually retracted in the direction of the origin position shown in FIG. At this time, the cleaning cover 34
Is strongly pressed against the guide member 32b side of the base frame 32 by the elastic force of the compression spring 35 compressed by the advancement of the cleaning nozzle 31, so that the cleaning cover 34 retreats together with the cleaning nozzle 31. No, only the cleaning nozzle 31 has the ridge 34c of the cleaning cover 34.
It is guided and retreats.

Then, the nozzle head 3 of the cleaning nozzle 31
As shown in FIG. 13, when the cleaning spring 1a is stored in the reflecting portion 34a of the cleaning cover 34 in the state where the cleaning spring 1a has advanced to the advance limit position, the compression spring 35 returns from the compressed state to the original state. As shown in FIG. 6, the cleaning cover 34 applies the ridge 34c engaged with the guide groove 31f of the cleaning nozzle 31 to the elastic force of the compression spring 35. As a result, in the state of being locked to the end portion 31f1 of the guide groove 31f, it retracts together with the washing nozzle 31.

Further, the cleaning nozzle 31 is provided with the cleaning cover 3.
4 until the rotor 4 of the flow control valve 4
3, as shown in FIG. 16, the first and second valve bodies 43
The notches 43d and 43e of the nozzles a and 43b rotate to positions (self-cleaning (SC) positions) that match the first and second outlets 41d and 41e to prepare for post-washing of the washing nozzle 31.

Then, the cleaning nozzle 31 and the cleaning cover 3
12 moves back to the home position as shown in FIG. 12, the motor 33a of the driving means 33 is driven by a command from the control means 7.
Is stopped, and the retreat of the cleaning nozzle 31 and the cleaning cover 34 ends.

When the cleaning nozzle 31 is retracted to the home position, the opening / closing valve of the valve unit 1 is opened again by a command from the control means 7 to supply water from the water supply source to the heating means 2 and to supply water to the heating means 2. Cleaning water at an appropriate temperature is supplied to the nozzle device 3 via the flow control valve 4 in accordance with the water supply amount, and is supplied from the first and second injection holes a and b formed in the nozzle head 31a of the cleaning nozzle 31. Spout toward the top.

The washing water ejected from the first and second injection holes a and b collides with the reflecting portion 34a of the washing cover 34 and rebounds, falls on the nozzle head 31a, and sanitizes the nozzle head 31a. Wash thoroughly. Then, after a lapse of a predetermined time, the on-off valve of the valve unit 1 is closed by a command from the control means 7, and the post-washing of the washing nozzle 31 is completed. The post-cleaning of the cleaning nozzle 31 may be performed when the cleaning nozzle 31 is stored in the cleaning cover 34.

Although the present invention has been described with reference to an example in which the cleaning cover 34 is advanced to the advance limit position and is kept on standby even after the cleaning of the nozzle head 31a of the cleaning nozzle 31, the nozzle has been described. After the cleaning of the head 31a is completed, only the cleaning cover 34 may be retracted to the origin position.

[0054]

As described above, in the nozzle device of the present invention, the cleaning nozzle tip is cleaned at the same time as the cleaning nozzle advance operation, so that the cleaning time of the cleaning nozzle tip is lengthened. As a result, the tip of the cleaning nozzle can be effectively cleaned and kept in a sanitary state.

In addition, the cleaning nozzle advance operation and the cleaning nozzle distal end portion are simultaneously performed, so that the cleaning nozzle distal end portion is cleaned and then the cleaning nozzle advance operation is performed as in the related art. Compared with the case, it is possible to satisfactorily reduce the time from when the user operates the operation means to when the local cleaning is started (the advancement time of the cleaning nozzle).

Further, since the cleaning cover is moved forward and backward integrally with the cleaning nozzle in a state where the cleaning cover faces the upper surface of the cleaning nozzle, the tip of the cleaning nozzle always faces the cleaning cover. As a result of the reciprocating operation in the state in which the cleaning nozzle is moved, the tip of the cleaning nozzle can be satisfactorily cleaned, and there is no need to provide any special driving means for the reciprocating operation of the cleaning cover. Can be configured.

Further, the cleaning cover and the cleaning nozzle may include:
The elastic structure of the compression spring is achieved by a simple structure in which a projection provided on the cleaning cover is engaged with a guide groove formed in the cleaning nozzle, and a compression spring is interposed between the cleaning cover and the cleaning nozzle. It is very convenient because the protrusions can be integrally advanced and retracted in a state where the projections are locked to the end portions of the guide grooves by using force.

Further, after the cleaning cover has advanced to the predetermined position, only the cleaning nozzle is advanced to the local cleaning position, so that the dirt and the like washed off at the time of local cleaning adhere to the cleaning cover as much as possible. As a result, it is possible to prevent contamination of the cleaning cover satisfactorily and to clean the tip of the cleaning nozzle in a sanitary manner.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a sanitary washing device.

FIG. 2 is a left side view of the nozzle device.

FIG. 3 is a plan view of the nozzle device.

FIG. 4 is a vertical sectional view of a cleaning nozzle.

FIG. 5 is a perspective view showing a cleaning cover in a longitudinal section.

FIG. 6 is a cross-sectional plan view for explaining a locked state between the cleaning nozzle and the cleaning cover.

FIG. 7 is a cross-sectional plan view showing a state in which the cleaning cover has advanced to an advance limit position.

8A is a vertical sectional view showing an engagement state between a cleaning nozzle and a cleaning cover, and FIG. 8B is a vertical sectional front view showing a mounting state of the cleaning nozzle and the cleaning cover to a base frame.

FIG. 9 is a plan view showing a main part of the flow control valve with a cutout.

FIG. 10 is a longitudinal sectional view showing first and second valve bodies.

FIG. 11 is a perspective view of a rotor.

FIG. 12 is a side view showing a state where the cleaning nozzle and the cleaning cover are at the origin positions.

FIG. 13 is a side view showing a state where the cleaning nozzle and the cleaning cover have advanced to the advance limit position of the cleaning cover.

FIG. 14 is a side view showing a state in which the cleaning nozzle has advanced to the posterior cleaning position.

FIG. 15 is a side view showing a state in which the cleaning nozzle has advanced to the bidet cleaning position.

FIG. 16 is an explanatory diagram for explaining an operation state of the flow control valve during self-cleaning.

FIG. 17 is an explanatory diagram for explaining an operation state of the flow control valve at the time of ass washing.

FIG. 18 is an explanatory diagram for explaining an operation state of the flow control valve during bidet cleaning.

FIG. 19 is a time chart for explaining the operation of the sanitary washing device.

[Explanation of symbols]

 Reference Signs List 3 Nozzle device 31 Cleaning nozzle 31a Nozzle head 31f Guide groove 32 Base frame 32b Guide member 33 Drive means 33a Motor 33e Timing belt 34 Cleaning cover 34c Ridge a, b Injection hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masanori Ohashi 1 Aichi-cho, Kasugai-shi, Aichi Pref. Aichi Electric Co., Ltd. (72) Inventor Shinji Isaji 1 Aichi-cho, Kasugai-shi Aichi Pref. Terms (reference) 2D038 JA02 JA03 JA05 JF06

Claims (4)

[Claims] 1. A sanitary washing device provided with a functional unit such as a nozzle device for performing local cleaning, wherein the nozzle device is configured to spray cleaning water at an appropriate temperature toward a local portion, and the cleaning nozzle can be moved forward and backward. A base frame to be supported, driving means for moving the cleaning nozzle forward and backward along the base frame between an origin position and a local cleaning position, and a nozzle cleaning cover provided in a state facing the upper surface side of the cleaning nozzle. A nozzle device for a sanitary washing device, characterized in that the nozzle device is configured to wash the tip of the washing nozzle simultaneously with the reciprocating operation of the washing nozzle. 2. The sanitary washing device according to claim 1, wherein the nozzle washing cover is configured to move forward and backward integrally with the washing nozzle in a state where the nozzle washing cover faces the upper surface of the washing nozzle. Nozzle device. 3. A pair of ridges project from the inner peripheral surface on the base end side of the nozzle cleaning cover, and a guide groove is formed on the side surface of the cleaning nozzle from the base end to the distal end side. The protrusion is engaged with the guide groove, and a compression spring is interposed between the base end of the nozzle cleaning cover and the base end of the cleaning nozzle to reduce the elastic force of the compression spring. 3. The nozzle device for a sanitary washing device according to claim 2, wherein the nozzle washing cover and the washing nozzle are integrally moved forward and backward by utilizing the nozzle washing cover. 4. The nozzle of a sanitary washing device according to claim 2, wherein after the nozzle cleaning cover has advanced to a predetermined position, only the cleaning nozzle is advanced to a local cleaning position. apparatus.