JP2002167844A - Washing nozzle for human body private parts and washing device for human body private parts provided with same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing nozzle for private parts which gives the feeling of fullness and stimulation. SOLUTION: The washing nozzle for the private parts, which is provided with a water supply passage and jets out washing water to the human body private parts, is characterized by an orifice part formed to the water supply passage and pointed at the human body private parts at the outlet, an air intake provided on the periphery of the orifice part, an a throat part, which is provided on the locus connecting the outlet of the orifice part and the human body private parts, and in which an outlet area is larger than an inlet area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body part cleaning nozzle used for a sanitary washing device for cleaning a human body part, and a human body part cleaning apparatus provided with the same.

[0002]

2. Description of the Related Art A human body cleaning nozzle disclosed in Japanese Patent Publication No. 58-9688 has been conventionally known. FIG. 15 is a cross-sectional view of this type of a conventional human body local cleaning nozzle.
In FIG. 1, the present nozzle 1 includes a first nozzle 2 and a nozzle body 3.

When a water pressure is applied to the upstream of the first nozzle 2 of the main nozzle 1 having such a configuration, the washing water is jetted from the first nozzle 2, passes through the cavity 4 provided in the nozzle body 3, and flows about halfway. The direction of the 90-degree water flow is bent and injected toward the local part from the injection port 5. At this time, since the air suction port 7 is provided near the injection port 6 of the first nozzle 2, the hot water sucks air and is injected from the injection port in a state where air bubbles are mixed. As a result, the area of the washing water colliding with the local part is increased, and the human body can enjoy plenty of washing.

[0004]

With the nozzle for cleaning the local part of the human body having the conventional structure, although the human body can certainly enjoy a plenty of cleaning, it is also true that the human body lacks a stimulating feeling.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has as its object to provide a human body part cleaning nozzle which provides a sufficient feeling and a stimulating feeling, and a human body part cleaning device provided with the same. And

[0006]

In order to achieve the above object, a human body local cleaning nozzle according to a first aspect of the present invention is provided with a water supply passage and sprays cleaning water to the human body local nozzle. Is formed in the water supply channel,
An orifice part whose outlet is directed to the human body local part, an air intake provided around the orifice part, and an orifice part is provided on a locus connecting the outlet of the orifice part and the human body local part, and has a larger area than the entrance area. And a throat portion having a large exit area.

According to another aspect of the present invention, there is provided a human body local cleaning nozzle which includes a water supply passage and injects cleaning water to the human body local part, wherein the nozzle is formed in the water supply passage. An orifice part having an outlet directed to the human body part, an air intake provided around the orifice part, and an orifice part provided on a locus connecting the outlet of the orifice part and the human body part, and the cleaning water A throat portion having a portion where the passage area of the washing water increases as the jetting direction advances.

In the conventional configuration, the washing water injected from the first nozzle 2 passes through the cavity 4 provided in the nozzle body 3 and loses energy (ie, loses energy when the direction of the water flow is bent about 90 degrees on the way). Wash water slows down). But,
According to the human body portion cleaning nozzle according to claim 1 or 2, the outlet of the orifice portion is directed toward the human body portion, and when water pressure is applied upstream of the orifice portion, the washing water injected from the outlet of the orifice portion becomes Collides with the human body part with the injected water pressure without any obstacle. That is, there is no energy loss (ie, no deceleration of the washing water). Therefore,
The human body can enjoy a stimulating wash.

Further, an air intake is provided around the orifice portion, and when washing water is injected from the outlet of the orifice portion, a negative pressure is generated around the orifice portion, and the jet sucks air ( The air passes through the throat portion with the so-called ejector effect). At that time, a vortex of air is generated between the air and the inner wall surface of the throat, and the turbulence around the jet is promoted. Furthermore, since the outlet area is larger than the inlet area in the throat portion, or because there is a portion where the passage area of the washing water (jet flow) is large, the jet and the inner wall surface of the throat expanding toward the throat outlet The vortex of air generated between the two becomes continuous. This chain of air vortices interferes with the jet in a complicated manner, and turbulence around the jet is further promoted. The washing water jetted from the throat portion becomes thin or thick depending on the degree of the disturbance.
The repetition of the thinning of the washing water causes high-speed and low-speed repetition of the washing water injected from the throat portion, and the repetition of the speed difference causes the repetition of the density of the washing water jet to appear as a natural fluctuation.

[0010] The washing water which repeats such sparseness and denseness gives a sufficient feeling to the human body particularly in a dense portion. In addition, since the repetition of the density is too fast for the human body to perceive, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can also enjoy a washing with a feeling of swelling together with a washing with a stimulating feeling.

According to a third aspect of the present invention, the throat portion is arranged on the same axis as the orifice portion and the outlet is open to the atmosphere. Features.

According to the third aspect of the present invention, since the throat portion and the orifice portion are arranged on the same axis, the throat portion and the orifice portion can be worked from the same direction in the assembling and the inspection process after the assembling. It is advantageous in terms of manufacturing, inspection, etc., and is excellent in mass productivity.

According to a fourth aspect of the present invention, there is provided the human body local cleaning nozzle according to any one of the first to third aspects, further comprising a cleaning water swirling portion for rotating the cleaning water supplied to the orifice portion around the locus as a central axis. And

According to the fourth aspect of the present invention, the supplied washing water is swirled by the washing water swirling section. The swirled washing water passes through the orifice portion and the throat portion and is diffused and sprayed in a conical shape. Therefore,
The area of the washing water colliding with the local part is increased, and the human body can enjoy a more pleasing washing.

According to a fifth aspect of the present invention, there is provided the nozzle according to any one of the first to fourth aspects, further comprising a variable portion for varying an amount of air taken in from the air intake.

According to the fifth aspect of the present invention, the amount of air taken in from the air inlet is changed by the variable portion. When the amount of air taken in varies, the degree of turbulence of the cleaning water increases, and a large difference in density occurs. Therefore, the human body can enjoy a more irritating wash.

According to a sixth aspect of the present invention, in the human body local cleaning nozzle according to the fifth aspect, the variable portion varies an amount of air taken in from the air inlet at a predetermined cycle.

According to the sixth aspect of the present invention, since the amount of air taken in from the air inlet fluctuates at a predetermined cycle by the variable section, the turbulence of the cleaning water is periodically generated. Therefore, the density of the washing water becomes periodic, and the human body can stably enjoy the irritating washing.

According to a seventh aspect of the present invention, in the human body local cleaning nozzle according to any one of the first to sixth aspects, an orifice rotating portion for rotating the orifice portion around the locus as a center axis is provided.

According to the seventh aspect of the present invention, the orifice rotating section rotates the orifice section around the locus as the center axis. When the orifice portion rotates about the locus as the center axis, the washing water is jetted in a conical shape. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

According to an eighth aspect of the present invention, there is provided the human body local cleaning nozzle according to any one of the first to seventh aspects, further comprising a cleaning water pressure varying portion for varying the pressure of the cleaning water supplied to the orifice portion at a predetermined cycle. And

According to the cleaning nozzle of the eighth aspect of the present invention, the pressure of the washing water supplied to the orifice portion by the washing water pressure varying portion varies at a predetermined cycle. Therefore, the cleaning water to be injected is disturbed by the forced fluctuation by the cleaning water pressure fluctuation part in addition to the natural fluctuation at the orifice part and the throat part. Therefore, the human body can enjoy a more irritating wash.

According to a ninth aspect of the present invention, there is provided the human body local cleaning nozzle according to any one of the first to eighth aspects, wherein a volume of air taken in from the air inlet is larger than a volume of the cleaning water. It is.

According to the ninth aspect of the present invention, since the volume of the air taken in from the air inlet is larger than the volume of the cleaning water, natural fluctuations are remarkable. According to the nozzle we actually prototyped, 0.
When 9 L / min of washing water is injected, 1.0 L / min
Min or more of air (1.4 L / min in measurement) was taken in from the air intake, and at that time, remarkable natural fluctuation was confirmed.

According to a tenth aspect of the present invention, there is provided a human body local cleaning apparatus having a water supply channel, the cleaning apparatus for injecting cleaning water to the human body local part, wherein the device is formed in the water supply channel, An orifice part whose outlet is directed to the human body local part, an air intake provided around the orifice part, and an orifice part is provided on a locus connecting the outlet of the orifice part and the human body local part, and has a larger area than the entrance area. And a throat portion having a large exit area.

In order to achieve the above object, a human body local cleaning device according to claim 11 is a human body local cleaning device that includes a water supply channel and injects cleaning water to the human body local portion, wherein the device is formed in the water supply channel, An orifice part having an outlet directed to the human body part, an air intake provided around the orifice part, and an orifice part provided on a locus connecting the outlet of the orifice part and the human body part, and the cleaning water A throat portion having a portion where the passage area of the washing water increases as the jetting direction progresses; and a human body local washing nozzle having a throat portion.

In the conventional configuration, the washing water injected from the first nozzle 2 passes through the cavity 4 provided in the nozzle main body 3 and loses energy (ie, loses energy when the direction of the water flow is bent about 90 degrees on the way). Wash water slows down). But,
According to the human body part cleaning nozzle according to claim 10 or 11, the outlet of the orifice part is directed to the human body part,
When a water pressure is applied upstream of the orifice portion, the washing water injected from the outlet of the orifice portion collides with the human body part with the injected water pressure without any obstacle. That is, there is no energy loss (ie, no deceleration of the washing water). Therefore, the human body can enjoy a stimulating washing.

Further, an air inlet is provided around the orifice portion, and when the washing water is injected from the outlet of the orifice portion, a negative pressure is generated around the orifice portion, and the jet sucks air ( The air passes through the throat portion with the so-called ejector effect). At that time, a vortex of air is generated between the air and the inner wall surface of the throat, and the turbulence around the jet is promoted. Furthermore, since the outlet area is larger than the inlet area at the throat portion, or because there is a portion where the passage area of the washing water (jet) gradually increases, the jet gradually expands toward the throat outlet. The air vortex generated between the throat and the inner wall of the throat is continuous. This chain of air vortices interferes with the jet in a complicated manner, and turbulence around the jet is further promoted. The washing water jetted from the throat portion becomes thin or thick depending on the degree of the disturbance. The repetition of the thinning of the washing water causes high-speed and low-speed repetition of the washing water injected from the throat portion, and the repetition of the speed difference causes the repetition of the density of the washing water jet to appear as a natural fluctuation.

The washing water which repeats such sparse / dense gives a sufficient feeling to the human body particularly in a dense portion. In addition, since the repetition of the density is too fast for the human body to perceive, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can also enjoy a washing with a feeling of swelling together with a washing with a stimulating feeling.

In a twelfth aspect of the present invention, the throat portion is disposed on the same axis as the orifice portion and the outlet is open to the atmosphere. Features.

According to the twelfth aspect of the present invention, since the throat portion and the orifice portion are arranged on the same axis, it is possible to work from the same direction in the assembling and the inspection process after the assembling. It is advantageous in terms of manufacturing, inspection, etc., and is excellent in mass productivity.

A thirteenth aspect of the present invention is the human body cleaning device according to the tenth to twelfth aspects, further comprising a washing water swirling section for swirling the washing water supplied to the orifice section around the locus as a central axis. And

According to the thirteenth aspect of the present invention, the supplied washing water is swirled by the washing water swirling section. The swirled washing water passes through the orifice portion and the throat portion, and is sprayed in a conical shape. Therefore,
The area of the washing water colliding with the local part is increased, and the human body can enjoy a more pleasing washing.

A fourteenth aspect of the present invention is the apparatus for cleaning a local part of a human body according to the tenth to thirteenth aspects, further comprising a variable portion for varying an amount of air taken in from the air intake.

According to the apparatus for cleaning a human body part according to the fourteenth aspect, the amount of air taken in from the air inlet is changed by the variable part. When the amount of air taken in varies, the degree of turbulence of the cleaning water increases, and a large difference in density occurs. Therefore, the human body can enjoy a more irritating wash.

According to a fifteenth aspect of the present invention, in the apparatus for cleaning a local part of a human body according to the fourteenth aspect, the variable section varies the amount of air taken in from the air inlet at a predetermined cycle.

According to the apparatus for cleaning a human body part according to the present invention, the amount of air taken in from the air inlet fluctuates in a predetermined cycle by the variable section, so that the turbulence of the cleaning water is generated periodically. Therefore, the density of the washing water becomes periodic, and the human body can stably enjoy the irritating washing.

A sixteenth aspect of the present invention is the human body local cleaning apparatus according to the tenth to fifteenth aspects, further comprising an orifice rotating section for rotating the orifice section around the locus as a center axis.

According to the human body local cleaning device of the sixteenth aspect, the orifice rotating section rotates the orifice section around the trajectory as the central axis. When the orifice rotates around the locus as a center axis, the washing water is sprayed in a conical manner. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

A seventeenth aspect of the present invention is the human body local cleaning apparatus according to any one of the tenth to sixteenth aspects, further comprising a washing water pressure varying section for varying the pressure of the washing water supplied to the orifice section at a predetermined cycle. And

According to the apparatus for cleaning a local part of a human body according to the seventeenth aspect, the pressure of the cleaning water supplied to the orifice portion by the cleaning water pressure fluctuation portion fluctuates at a predetermined cycle. Therefore, the cleaning water to be injected is disturbed by the forced fluctuation by the cleaning water pressure fluctuation part in addition to the natural fluctuation at the orifice part and the throat part. Therefore, the human body can enjoy a more irritating wash.

In a preferred embodiment, the volume of air taken in from the air inlet is larger than the volume of the cleaning water. It is.

According to the apparatus for cleaning a human body part according to the eighteenth aspect, since the volume of the air taken in from the air inlet is made larger than the volume of the cleaning water, natural fluctuations are remarkable. According to the nozzle we actually prototyped, 0.
When 9 L / min of washing water is injected, 1.0 L / min
Min or more of air (1.4 L / min in measurement) was taken in from the air intake, and at that time, remarkable natural fluctuation was confirmed.

[0044]

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

FIG. 1 is a schematic perspective view of a human body local cleaning nozzle showing one embodiment of the present invention, FIG. 2 is a sectional view of a tip of the human body local cleaning nozzle, and 8 is a water supply to which cleaning water is supplied. The passage 10 is provided with a water supply chamber for changing the course of washing water supplied from the water supply passage 8 to the orifice portion 12 (described later).
2 is an orifice part for increasing the flow rate of the washing water, 13 is an air suction part for sucking air, 15 is a throat part,
It is.

Here, the diameter of the orifice portion 12 is φ1.3.
mm, the inlet diameter D1 of the throat portion 15 is φ2.1 mm (that is, the area ratio between the outlet of the orifice portion 12 and the inlet of the throat portion 15 is about 2.6), and the outlet diameter D2 is φ2.3 m.
m (ie, the outlet of the orifice 12 and the throat 1
5 is set to about 3.1). In addition, the throat portion 15 has a portion connected by a smooth curve in the middle and having a larger throat diameter as the cleaning water is jetted. Therefore, the throat portion 15 has a larger exit area than an entrance area. In addition, there is a part where the passage area of the washing water increases as the washing water proceeds in the jetting direction. Further, the throat section 15 is connected to the anus a or
Are arranged on trajectories X and Y leading to. In the embodiment shown in FIG. 2, the orifice portion 12 and the throat portion 15 are arranged on the same axis.

FIGS. 3A and 3B are explanatory views for explaining the arrangement of the water supply channel 8 and the water supply chamber 10, as viewed from the direction of the anus a or the bidet b in FIG. . 3A, the water supply channel 8 is connected toward the center of the water supply chamber 10, and therefore, the washing water supplied from the water supply channel 8 causes the orifice portion 12 to move along the trajectory X or Y.
Head for.

On the other hand, FIG. 3B shows that the water supply passage 8 is
0 (ie, the water supply channel 8 and the water supply chamber 10 constitute a cleaning water swirling section), the cleaning water supplied from the water supply channel 8 moves with respect to the trajectory X or Y. Turns toward the orifice section 12. The swirled washing water passes through the orifice section 12 and the throat section 15,
It is sprayed in a conical manner. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

FIG. 4 shows a digital push-pull gauge (manufactured by Aiko Engineering Co., Ltd.) in which the embodiment shown in FIG. 3 (a) is prototyped, the cleaning water is spouted, and the spouted cleaning water is arranged at a distance of 60 mm from the prototype. ) Is data measured for about 2 seconds at a sampling cycle of 500 Hz, the horizontal axis represents time (seconds), and the vertical axis represents load (mN).

As shown in FIG. 4, it was confirmed that a peak load of 1500 mN or more was generated when jetting from a prototype nozzle. It was also confirmed that a peak was generated at a period of about ten and several Hz.

FIG. 5 shows an area ratio S2 / S1 of the sectional area S1 of the orifice section 12 and the sectional area S2 of the throat section 15, and
It shows the relationship with the peak load when the jetted washing water hits a local area. Here, the area ratio S2 / S1 =
A peak load of about 3.1 and 1500 mN or more has been experimentally confirmed.

Next, the operation and effect of this embodiment will be described. When a water pressure is applied upstream of the orifice portion 12, the washing water (flow velocity of about 12 m / s) injected from the outlet of the orifice portion 12 collides with the human body local part with the injected water pressure without any obstacle. That is, there is no energy loss (ie, no deceleration of the washing water). Therefore,
The human body can enjoy a stimulating wash.

Further, an air inlet is provided around the orifice portion, and when washing water is injected from the outlet of the orifice portion, a negative pressure is generated around the orifice portion, and the jet sucks air ( The air passes through the throat portion with the so-called ejector effect. At that time, a vortex of air is generated between the air and the inner wall surface of the throat, and the vortex promotes turbulence around the jet. Furthermore, since the outlet area is larger than the inlet area at the throat portion, or because there is a portion where the passage area of the washing water (jet) gradually increases, the jet gradually expands toward the throat outlet. The vortices of air generated in the gap of about 0.5 to 1 mm formed between the air and the inner wall surface of the throat are continuous. This chain of air vortices interferes with the jet in a complicated manner, and turbulence around the jet is further promoted. The washing water jetted from the throat portion becomes thin or thick depending on the degree of the disturbance. The repetition of the thinning of the washing water causes high-speed and low-speed repetition of the washing water injected from the throat portion, and the repetition of the speed difference causes the repetition of the density of the washing water jet to appear as a natural fluctuation.

The washing water which repeats such sparse / dense gives a sufficient feeling to the human body particularly in a dense portion. In addition, since the repetition of the density is too fast for the human body to perceive, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can also enjoy a washing with a feeling of swelling together with a washing with a stimulating feeling.

FIG. 6 shows a water circuit of a human body part cleaning apparatus provided with the human body part cleaning nozzle of FIG. From the water source side (upstream side), 20 is a water supply connection portion, 22 is a check valve for preventing backflow, 24 is a strainer for removing foreign matter in the supplied washing water, and 26 is a downstream line regardless of fluctuations in the water supply pressure. Pressure regulating valve for maintaining a constant pressure, 30 is a main flow path solenoid valve, 32
Is a body cleaning electromagnetic valve, 34 is a relief valve for suppressing a rise in downstream pressure when the pressure rises, and 36 is a hot water storage type heat exchanger capable of storing 1.1 L of hot water for heating the supplied cleaning water. , 38 is a vacuum release valve, 40 is a flow regulating valve (throttle valve), 42 is a switching valve, 44 is a telescopic nozzle body provided with the human body local cleaning nozzle of FIG. 1 (FIG.
(B) is used for cleaning the anus, and FIG. 3 (b) is used for cleaning the bidet).
46 is a nozzle expansion / contraction drive motor.

Here, the flow regulating valve (throttle valve) 40 and the switching valve 42 are separate blocks for the sake of explanation.
The flow control switching valves 40 and 42 may be integrally formed in the following description. In this case, the flow control switching valves 40 and 42 have 3
The valve has two outflow passages, and the built-in valve has a configuration in which the communication area between the inflow passage and the outflow passage can be selectively changed and water can be stopped by the rotation angle. The valve is rotatable by the driving force of the stepping motor.

FIG. 7 is an explanatory diagram for explaining the expansion and contraction state of the nozzle body 44. In FIG. 7, the nozzle body 44 in the housed state is shown by a solid line, and the nozzle body 44 in the extended state is shown by a broken line. Further, a and b are washing positions of an anus and a bidet which are local parts of a human body, respectively, and A and B are extending positions of a nozzle body for spraying washing water to the anus a and a bidet b, respectively. , Y indicate trajectories connecting the orifice portion with the anus a and the bidet b, respectively.

In FIG. 7, as indicated by arrows,
By reciprocating the nozzle body 44 with a small stroke at the extended positions A and B, the cleaning range of the local area can be expanded, and at the same time, the position of the cleaning water that collides with the local area can be changed to enjoy a stimulating cleaning. be able to.

The cycle of the reciprocating movement of the nozzle body 44 in a minute stroke can be arbitrarily set or changed. , Nozzle body 44
Is disturbed by forced fluctuations due to the reciprocating movement of. Therefore, the human body can enjoy a more irritating wash.

With reference to the timing chart shown in FIG. 8, the operation of the parts constituting the water circuit of the human body local cleaning apparatus until the cleaning water is injected to the human body in the above configuration will be described.

First, in the standby state, the seating SW (seating switch), deodorizing and washing SW (washing switch), the main flow path solenoid valve 30, and the body washing solenoid valve 32 are in the OFF state (non-operating state), and the nozzle body 44 is in the OFF state. Indicates the storage state, flow control switching valve 4
Numerals 0 and 42 are located at positions (= SC) where the inflow path and the three outflow paths are all communicated. In the standby state, when the human body sits on the toilet seat (not shown), the seating SW (seating switch) is turned on, the interlock of the human body local cleaning function is released, and the deodorizing function (not shown) is turned on.
The state becomes the N state (operating state).

Next, when the buttocks switch (not shown) is operated to request the injection of the washing water to the anus, the main flow path solenoid valve 30 is turned on (water channel open state) and the nozzle body 44 in the housed state is turned on. The washing water is sprayed from. The jetted cleaning water is reflected by the reflection plate 45 disposed on the opposite side to clean the nozzle body 44 (= pre-cleaning). After the pre-cleaning, the pressure trapped in the heat exchanger 38 is released (= pressure release). After depressurization, the flow control switching valves 40 and 42 move to the water stop position (= flow control movement). After the flow adjustment movement, the nozzle body 44
At this time, the body cleaning solenoid valve 32 is turned on (water channel open state) to clean the surface of the nozzle body 44 that is being extended (= extension (body washing)).

After the extension (body washing), the main flow path solenoid valve 30 is turned on and the opening of the water channel by the flow control switching valves 40 and 42 is gradually advanced in order to actually wash the local part of the human body (=).
Soft start). After the soft start, perform local cleaning using the body's favorite water force (= main cleaning). The strength of the jetted washing water can be changed by the flow control switching valves 40 and 42, but the strongest (maximum flow rate) is 1 L / m.
in. Therefore, hot water can be continuously sprayed from the human body local cleaning nozzle for 60 seconds or more.

When a stop switch (not shown) as a request to stop the washing water is operated, the main flow path solenoid valve 30 is turned off.
A state (water channel closed state) is reached, and the injection of the washing water is stopped. At this time, the nozzle body 44 and the flow control switching valves 40 and 42 are kept as they are, and the pressure trapped in the heat exchanger 36 is released. (= Pressure relief). After depressurization, flow control switching valve 4
0 and 42 are moved to the water stop position (= flow control movement). After the flow adjustment movement is completed, the nozzle body 44 is stored in the storage position, and at the same time, the body cleaning solenoid valve 32 is turned on, and the nozzle body 4 is turned on.
The surface of No. 4 is washed (= storage (body washing)).

After storage (body washing), the flow control switching valves 40, 4
2 is moved to the SC position, the main flow path solenoid valve 30 is turned on (water channel open state), and the nozzle body 4 is in the housed state.
Cleaning water is injected from 4. The jetted washing water is reflected by the reflecting plate 45 disposed on the opposite side to wash the nozzle body 44 (= post-washing).

After the post-cleaning, the flow control switching valves 40 and 42 are moved to the origin positions (= origin adjustment).
0 and 42 are moved to the SC position (= flow control movement). Here, when the person leaves, the seating SW (seating switch) is turned off.
The state becomes F, and the deodorizing function stops.

FIG. 9 shows an embodiment corresponding to claims 5, 6, 14, and 15, which is provided with a variable section 18 for varying the amount of air taken in from the air intake 13. The variable section 18 includes a motor, and the motor controls the speed (5
The air intake 13 is opened / closed at about 0 Hz, and the amount of air taken in from the air intake 13 is variably controlled.

According to this embodiment, the opening / closing drive of the variable section 18 changes the amount of air taken in from the air intake 13. When the amount of air taken in varies, the degree of turbulence of the cleaning water increases, and a large difference in density occurs. Therefore, the human body can enjoy a more irritating wash.

The variable period of the air amount by the variable section 18 can be set and changed arbitrarily, and the washing water to be injected is not limited to natural fluctuations at the orifice section and the throat section.
Disturbed by the forced fluctuation by the variable unit 18. Therefore, the human body can enjoy a more irritating wash.

FIG. 10 shows an embodiment corresponding to claims 7 and 16, in which an orifice rotating section 19 for rotating the orifice section 12 about the trajectory X or Y as a central axis is provided. The orifice rotating section 19 includes a motor, and the motor rotates the nozzle head about the locus as a central axis, and rotates the outlet of the orifice section 12 provided on the locus about the locus as a central axis.

According to this embodiment, the orifice rotating section 1
By means of 9, the orifice portion 12 is rotated around the locus X or Y as a central axis. When the orifice portion 12 rotates about the locus as the center axis, the washing water discharged from the orifice portion 12 is sprayed in a conical manner. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

The rotation cycle of the orifice section 12 by the orifice rotating section 19 can be arbitrarily set or changed. The washing water to be sprayed is not only changed naturally by the orifice section and throat section, but also by the orifice rotating section. 19 disturbed by forced fluctuations. Therefore, the human body can enjoy a more irritating wash.

FIG. 11 shows an embodiment corresponding to claims 8 and 17, which is provided with a washing water pressure varying section 48 for varying the pressure of the washing water supplied to the orifice section 12 at a predetermined cycle. is there. The washing water pressure fluctuation unit 48 includes a known plunger pump constituted by an electromagnetic coil and a plunger, and a high pressure is periodically applied to the washing water by driving the plunger pump.

According to this embodiment, the cleaning water pressure fluctuation unit 4
By virtue of 8, the pressure of the washing water supplied to the orifice portion 12 fluctuates in a predetermined cycle. Therefore, in addition to the natural fluctuation at the orifice and throat,
It is disturbed by the forced fluctuation by the cleaning water pressure fluctuation part 48.

The above embodiment can be variously modified without departing from the gist thereof.

(1) The throat 15 described with reference to FIGS. 2, 9 and 10 may be provided with a projection 15a of about 1 mm having a substantially triangular cross section in the throat circumferential direction as shown in FIG. . In this case, since there is provided a portion in which the passage area of the washing water increases as the washing water proceeds in the jetting direction, the jet gradually expands toward the throat outlet and the inner wall surface of the throat is about 0.5 to 1 mm. The vortices of the air generated in the gaps are chained. This chain of air vortices interferes with the jet in a complicated manner, and turbulence around the jet is further promoted. According to the nozzle we actually prototyped, 0.9L /
1.0L / min when washing water is injected
The above air (measured at 1.4 L / min in the measurement) was taken in from the air intake, and at that time, remarkable natural fluctuation was confirmed.

Further, after passing through the projection 15a, the jet stream is united by the straight rectifying portion and collides with the local portion with little scattering, so that the user can enjoy a comfortable washing feeling without wetting unnecessary portions. Can be. In that sense, it is desirable that the position of the protrusion 15a be provided as close as possible to the inlet side of the throat portion, and the dimension of the rectifying portion be provided as long as possible. 13 (a), 13 (b), 13 (c), and 13 (d), a semi-elliptical cross-sectional shape, a rectangular cross-sectional shape, and a hypotenuse are shown. Prototypes and experiments were also conducted on a right-angled triangular cross section facing the exit direction and a right-angled triangular cross section with the hypotenuse facing the entrance direction. In each case, almost the same results as in the example shown in FIG. 12 were obtained. D1 in the figure indicates the inlet diameter of the throat portion 15, and D2 indicates the outlet diameter of the throat portion 15.

(2) The throat 15 described with reference to FIGS. 2, 9 and 10 may be a step having a stepped cross section as shown in FIG. In this case, a vortex of air is generated near the step-like step, and the vortex promotes turbulence around the jet. Depending on the degree of the turbulence, the washing water jetted from the throat portion becomes thin or thick. The repetition of the thinning of the washing water causes high-speed and low-speed repetition of the washing water injected from the throat portion, and the repetition of the speed difference causes the repetition of the density of the washing water jet to appear as a natural fluctuation. The washing water that repeats such sparse and dense gives a full feeling to the human body particularly in a dense part. In addition, since the repetition of the density is too fast for the human body to perceive, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can also enjoy a washing with a feeling of swelling together with a washing with a stimulating feeling.

(3) The throat 15 described with reference to FIGS. 2, 9 and 10 may have a trumpet-shaped cross section as shown in FIG. 14B. In this case, in the throat section 15,
The throat diameter increases as the washing water proceeds in the spray direction. In this case, a vortex of air is generated in the inclined portion, and the turbulence around the jet is promoted by the vortex. Depending on the degree of the turbulence, the washing water jetted from the throat portion becomes thin or thick. The repetition of the thinning of the washing water causes high-speed and low-speed repetition of the washing water injected from the throat portion, and the repetition of the speed difference causes the repetition of the density of the washing water jet to appear as a natural fluctuation. The washing water that repeats such sparse and dense gives a full feeling to the human body particularly in a dense part. In addition, since the repetition of the density is too fast for the human body to perceive, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can also enjoy a washing with a feeling of swelling together with a washing with a stimulating feeling.

[Brief description of the drawings]

FIG. 1 shows a nozzle portion of a human body local cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the tip of a nozzle portion of the human body local cleaning device.

3A is a diagram in which the water supply channel 8 is connected toward the center of the water supply chamber 10, and FIG. 3B is a diagram in which the water supply channel 8 is connected eccentrically from the center of the water supply room 10 (ie, FIG. 3A). , The water supply channel 8 and the water supply chamber 10 constitute a washing water swirling section)

FIG. 4 shows data obtained by actually producing a prototype of the embodiment shown in FIG. 3A and measuring a load when the cleaning water is discharged.

FIG. 5 shows the relationship between the area ratio S2 / S1 of the cross-sectional area S1 of the outlet of the orifice section and the cross-sectional area S2 of the throat section, and the peak load when the jetted washing water hits a local area.

FIG. 6 is a diagram showing a water circuit of a human body part cleaning apparatus having the human body part cleaning nozzle of FIG. 1;

FIG. 7 is an explanatory diagram for explaining the expansion and contraction state of the nozzle body 44;

FIG. 8 is a timing chart showing an operation of a part constituting a water circuit of the human body local cleaning device.

FIG. 9 is an embodiment corresponding to claims 5, 6, 14, and 15;

FIG. 10 is an embodiment corresponding to claims 6 and 14;

FIG. 11 is an embodiment corresponding to claims 7 and 15;

FIG. 12 shows another embodiment of the throat.

FIG. 13 shows another embodiment of the throat.

FIG. 14 shows another embodiment of the throat.

FIG. 15 is a cross-sectional view of a conventional human body local cleaning nozzle.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... this nozzle, 2 ... 1st nozzle, 3 ... nozzle body, 4 ...
Cavity, 5 ... Injection port, 6 ... Injection port, 7 ... Air intake port, 8 ...
Water supply channel, 12: orifice section, 13: air suction section, 15
... Throat part, 15a ... Projection 18 ... Variable part, 19 ... Orifice rotating part, 20 ... Water supply connection part, 22 ... Check valve, 24 ... Strainer, 26 ... Pressure regulating valve, 30 ... Main flow path solenoid valve, 32 ... Body cleaning Solenoid valve, 34
... Relief valve, 36 ... Heat exchanger, 38 ... Vacuum release valve, 4
0: Flow control valve (throttle valve), 42: Switching valve, 44: Nozzle body, 45: Reflector, 46: Nozzle expansion / contraction drive motor, 48
… Cleaning water pressure fluctuation part, 60… resonance chamber

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Ryosuke Hayashi 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka F-term (reference) 2D038 BC01 JA05 JF06 JH12 KA03

Claims (18)

[Claims] 1. An orifice part provided with a water supply channel and injecting washing water to a human body part, comprising an orifice formed in the water supply path and having an outlet directed toward the human body part. An air inlet provided around the portion, and a throat portion provided on a trajectory connecting the outlet of the orifice portion and the human body part, and having an outlet area larger than the inlet area. Characteristic human body cleaning nozzle. 2. An orifice part provided with a water supply channel and injecting washing water to a human body part, comprising an orifice formed in the water supply path and having an outlet directed toward the human body part. An air inlet provided around the part, a trajectory connecting the outlet of the orifice part and the human body part, and a passage area of the washing water increases as the washing water proceeds in a jetting direction. And a throat part having a part to be cleaned. 3. The body part cleaning nozzle according to claim 1, wherein the throat portion is arranged on the same axis as the orifice portion, and an outlet is open to the atmosphere. Local body cleaning nozzle. 4. The human body cleaning nozzle according to claim 1, further comprising: a cleaning water swirling portion configured to swirl the cleaning water supplied to the orifice portion around the locus as a center axis. Local cleaning nozzle. 5. The human body local cleaning nozzle according to claim 1, further comprising a variable portion that changes an amount of air taken in from the air intake. 6. The human body local cleaning nozzle according to claim 5, wherein the variable portion changes the amount of air taken in from the air intake at a predetermined cycle. 7. The human body local cleaning nozzle according to claim 1, further comprising an orifice rotating unit that rotates the orifice unit around the locus as a center axis. 8. The human body cleaning nozzle according to claim 1, further comprising: a cleaning water pressure varying unit that varies a pressure of the cleaning water supplied to the orifice unit at a predetermined cycle. Local cleaning nozzle. 9. The human body local cleaning nozzle according to claim 1, wherein a volume of air taken in from the air inlet is larger than a volume of the cleaning water. 10. An apparatus for cleaning a human body local part, comprising a water supply channel and injecting washing water to a human body part, comprising: an orifice formed in the water supply path and having an outlet directed to the human body local part; An air inlet provided around the portion, and a throat portion provided on a trajectory connecting the outlet of the orifice portion and the human body portion and having an outlet area larger than the inlet area. A human body local cleaning device comprising a nozzle. 11. An apparatus for cleaning a human body part provided with a water supply channel and injecting washing water to a human body part, an orifice part formed in the water supply path and having an outlet directed to the human body part part; An air inlet provided around the part, a trajectory connecting the outlet of the orifice part and the human body part, and a passage area of the washing water increases as the washing water proceeds in a jetting direction. A body part cleaning device comprising: a throat part having a part to be; and a body part cleaning nozzle having: 12. The apparatus according to claim 10, wherein the throat is disposed on the same axis as the orifice, and the outlet is open to the atmosphere. Human body local cleaning device. 13. The human body cleaning device according to claim 10, further comprising a cleaning water swivel unit configured to swirl the cleaning water supplied to the orifice unit around the trajectory as a central axis. Local cleaning equipment. 14. The human body part cleaning device according to claim 10, further comprising a variable part that changes an amount of air taken in from the air intake. 15. The human body local cleaning device according to claim 14, wherein the variable unit changes the amount of air taken in from the air intake at a predetermined cycle. 16. The human body local cleaning apparatus according to claim 10, further comprising an orifice rotating section that rotates the orifice section around the trajectory as a central axis. 17. The human body local cleaning apparatus according to claim 10, further comprising a cleaning water pressure varying unit that varies a pressure of the cleaning water supplied to the orifice unit at a predetermined cycle. Local cleaning equipment. 18. The human body part cleaning apparatus according to claim 10, wherein a volume of air taken in from the air inlet is larger than a volume of the cleaning water.