JPH07224454A - Nozzle device for local washing and japanese style toilet with washing function - Google Patents

Abstract

PURPOSE:To suppress a washing water from splashing after having run against a human body by spouting a main stream for washing, which is directed to the local part concerned from the termination of a washing water flowpath. and an aux. stream which makes covering at least in the form of an arc of circle on the streamline of the main stream from the termination of the washing water flowpath, CONSTITUTION:The first flowpath 5b has a spout hole 5b-1 which is opened in the center of a spout head 5a, wherein the angle of the axis of the spout hole 5b-1 to a horizontal plane is made between 60-70deg. The second flowpath 5C is equipped with a greater flowpath area than the first 5b and has a slit 5C-1 in the form of an arc of circle positioned above the spout hole 5b-1. A stream of a washing water (main stream) from the spout hole 5b-1 becomes a small diameter line and draws a streamline directed straight to the local part concerned P. while another stream of washing water (aux. stream) discharged from the slit 5C-1 draws a streamline curving downward being influenced by the gravitation force because of bearing a weak energy and being a discharge water in the form of water film having a circular arc section. The main stream runs against the local part P to make splash, and the aux. stream becomes a screen to prevent splashing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle device for a local cleaning device such as a toilet seat for washing with hot water, and a structure of a Japanese-style toilet with a cleaning function that allows the nozzle device to be optimally utilized.

[0002]

2. Description of the Related Art A western style toilet seat can be equipped with a warm water washing toilet seat having a washing function for local washing after toilet. In this warm water washing toilet seat, a toilet seat that covers the toilet body is integrated with a casing, and a nozzle device built in this casing enables local washing.

In place of such a Western-style toilet bowl, a Japanese-style toilet bowl provided with a hot water washing device for local washing is already known. As an example thereof, there is one described in Japanese Patent Publication No. 5-13210.

This is a nozzle in which a pair of footrests are arranged along the left and right sides of the toilet body incorporated in the floor, and a functional part for washing with warm water is housed in one of them, and the functional part is connected to a warm water supply source. It is configured to include a device. The nozzle device includes a cylinder and a nozzle rod housed in the cylinder. The nozzle device stands by at a position where the nozzle rod is retracted in the footrest during use, and hot water is supplied to the cylinder during cleaning. Then, the nozzle rod is advanced to the cleaning position by utilizing the water pressure supplied by the cleaning water, and the cleaning water is sprayed to perform the cleaning.

[0005]

SUMMARY OF THE INVENTION In a warm water flush toilet seat equipped with a stool type toilet bowl, while a person sits on the toilet seat, the nozzle sprays washing water from the lower side of the toilet seat, so the posture of sitting on the toilet seat is not appropriate. Even in such a case, only the buttocks are exposed to the washing water, and there is no great inconvenience in terms of usability.

On the other hand, in the case of the Japanese-style toilet bowl as described in the above publication, there is a possibility that the washing water from the tip of the nozzle rod splashes on the human body and then spreads not only to the buttocks but also to the legs. high. Therefore, it is necessary for the footrest to have means such as raising a bounce prevention wall for blocking such water scattering.

However, when cleaning with the nozzle, sufficient cleaning cannot be obtained unless the jet pressure of the cleaning water is increased to some extent. For this reason, even if the bounce prevention wall is provided, the splashed water is more likely to be splashed as the ejection pressure is increased, and the same result is brought about when the posture of the user is inappropriate.

As described above, in the toilet seat for warm water flushing for a toilet, it is not necessary to make the nerve sharp in the discharge form of the flushing water from the nozzle, but when it is applied to a Japanese style toilet bowl, the conventional warm water flushing is used. It is not convenient to keep the structure of the nozzle device of the toilet seat.

The problem to be solved by the present invention is to provide a nozzle device in the form of injection of cleaning water which suppresses the scattering of the cleaning water after it hits the human body, and a Japanese-style toilet bowl which can be comfortably used by this nozzle device. To provide.

[0010]

SUMMARY OF THE INVENTION The present invention is a nozzle device provided in a local cleaning device, in which two systems of cleaning water flow channels are formed in the nozzle body, and cleaning is directed locally from the end of one cleaning water flow channel. A main stream can be jetted out, and a sub-stream that covers at least an arc shape of the streamline of the main washing stream can be jetted from the end of the other washing water flow path, and the water velocity of the sub-stream is made smaller than that of the main washing stream. It is characterized by

In such a structure, the main cleaning flow is jetted obliquely and the sub-stream is jetted from above, so that the sub-flow can cross the main cleaning flow before the cleaning point by gravity falling due to gravity. It is possible to set the respective water pressures from the wash water flow path. Further, the sub-stream may be a foam water flow in which air sucked into the cleaning water flow path by utilizing the ejector effect is mixed, or the main flow of cleaning may be the same as the foam water flow.

Furthermore, in a Japanese style toilet equipped with a local cleaning means that can be projected and retracted from a casing attached to the toilet body of Japanese style toward the rear part of the ball portion of the toilet body, the nozzle for local cleaning as the local cleaning means. The device can be applied.

When such a Japanese-style toilet is equipped, the nozzle body of the nozzle device is connected to the casing so that the angle between the streamlines of the main and substreams of washing and the horizontal plane is in the range of 60 to 70 °. Can be

[0014]

In the nozzle device, since the main washing flow has a larger water flow velocity than the sub-stream, the main washing stream rushes toward the local portion, while the water film-like sub-stream overlying the main washing stream bends downward due to gravity. Draw a streamline. The main stream of washing has a large degree of splashing in the front-back direction of the body after hitting a local part, and the splashed water is absorbed by the sidestream or the sidestream becomes a screen to prevent the scattering.

When the main stream of washing and the substream of washing are foamed water streams, the degree of splashing of the foamed water itself is smaller than that of a normal water stream, and the range of water splash can be narrowed.

Further, if such a nozzle device is provided as a local cleaning means for a Japanese-style toilet, splashing of water can be suppressed,
The rim portion of the toilet bowl and the floor around it can be used without being wet.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded perspective view showing toilet equipment with a local cleaning function including a nozzle device of the present invention.

In the figure, the toilet body 1 installed on the floor leaving only the rim portion 1a is a well-known Japanese-style flush toilet bowl for supplying wash water for discharging dirty water and dirt from the ball portion 1b. The flash valve 1c is connected.

On the toilet body 1, a casing 2 of a local cleaning device having a substantially U-shaped plane shape that occupies almost half of the rear end side is covered. Further, a functional unit 3 is provided as a separate body from the casing 2 in the vicinity thereof and accommodates a mechanism for operating a cleaning function, a controller and the like.

FIG. 2 is a cutaway plan view when the casing 2 and the functional unit 3 are laid out with respect to the toilet body 1, and FIG. 3 is an enlarged vertical sectional view taken along the line AA of FIG.

The functional unit 3 is provided with a water supply pipe 3a connected to the water supply pipe of the building, and the water supply pipe 3a is provided inside thereof.
A heat exchanger 3b communicating with a, and a valve unit 3c equipped with various valves for opening / closing the flow path and adjusting the flow rate are incorporated. The water supply pipe 3a is connected to an auxiliary pipe 3d that branches before entering the heat exchanger 3b, and an opening / closing valve 3e using a solenoid valve is connected to this auxiliary pipe 3d.
To provide. Further, a motor 3f with a speed reducer for advancing and retracting a nozzle device (described later) is provided, and a controller 3g for controlling each device is incorporated.

The upper surface of the function unit 3 is used as an operation panel on which operation switches for each function unit are arranged. The operation switches include a cleaning switch 4a and a stop switch 4
b, a hot water temperature setting switch 4c, a casing cleaning switch 4d, etc., and a water pressure adjusting knob 4e for operating the flow rate adjusting valve of the valve unit 3c.

The casing 2 is provided with a nozzle device at a portion located on the rear end side of the ball portion 1b. This nozzle device is provided with a nozzle body 5 which is held by a guide sleeve 2a fixed to the casing 2 and is movable in the axial direction.

In order to move the nozzle main body 5 in the axial direction, the motor body 3f of the functional unit 3 is connected by three link rods 6a, 6b, 6c. Then, by the link rods 6a to 6c, the motor 3
In accordance with the forward and reverse rotation of the output shaft of f, the nozzle body 5 is moved to the position shown in FIG.
The reciprocating operation from the storage position shown by the solid line to the cleaning position shown by the alternate long and short dash line is possible.

Further, in the nozzle body 5, two cleaning water supply pipes 7a and 7b from the valve unit 3c are connected to the base end as separate flow passage systems. These wash water supply pipes 7
The tubes a and 7b are made of rubber or the like so that they can follow the reciprocating motion of the nozzle body 5.

4A and 4B show the details of the nozzle body 5. FIG. 4A is a longitudinal sectional view of FIG. 4B, and FIG. 4B is an end view taken along the line BB of FIG. 4A. is there.

The nozzle body 5 has its tip portion ejecting head 5
It has a shape that is obliquely raised upward as a, and moves into and out of the casing 2 with the axis line from the base end portion to the boundary portion with the jet head 5a portion being substantially horizontal. And
The nozzle body 5 is provided with a first flow path 5b and a second flow path 5c separately, and the proximal ends of these are provided respectively to a cleaning water supply pipe 7a,
Connect to 7b.

As shown in FIG. 4B, the first flow path 5b is opened at the center of the ejection head 5a and has a single ejection hole 5b-1.
It is what The angle of the axis of the ejection hole 5b-1 with the horizontal plane is preferably in the range of 60 to 70 °. Then, a throat 5b-2 having a reduced flow passage area is provided in the vicinity of the ejection hole 5b-1, and an air intake port 5b-3 for communicating the throat 5b-2 with the outside air is opened.

On the other hand, the second flow passage 5c has a larger flow passage area as a whole than the first flow passage 5b, and the ejection head 5a is positioned above the ejection hole 5b-1 as shown in FIG. Is formed as an arc-shaped slit 5c-1. The slit 5c-1 is coaxial with the ejection hole 5b-1 and has an inferior arc shape. Further, a throat 5c-2 having a narrowed flow passage area is provided in the middle of the second flow passage 5c, and an air intake port 5c-3 for opening this portion to the outside air is opened.

Further, on the left and right sides of the casing 2, foot rests 8a and 8b for placing the feet of a user are integrally provided. The foot rests 8a and 8b have a planar shape with a certain amount of room when used by a person with a normal foot size, and a certain degree of freedom is restrained to determine the position of the body, and cleaning is performed with a nozzle device. It has the role of preventing the points from shifting.

The portion of the casing 2 that faces the ball portion 1b, excluding the guide sleeve 2a, is an inclined surface as shown in FIG. 1 and has a hollow portion with its inside closed. The auxiliary pipe 3d is connected to the hollow portion, and the spreader hole 2 is formed on the surface of the casing 2.
Open b. As a result, the casing cleaning switch 4d
Is operated, water is discharged from the spreader hole 2b,
The surface of the casing 2 is washed away.

In the above structure, when the cleaning switch 4a is turned on, the operation of the motor 3f and the link rods 6a-6
By the operation of c, the nozzle body 5 advances to the position indicated by the alternate long and short dash line in FIGS. 2 and 3 and stops. Then, at the same time as or slightly before this stop, the opening / closing valve of the valve unit 3c opens and the heat exchanger 3b opens the wash water supply pipes 7a, 7b.
The hot water is supplied to the nozzle body 5 by.

The cleaning water flowing from the cleaning water supply pipe 7a to the first flow path 5b is accelerated by the throat 5b-2 before reaching the end ejection hole 5b-1. And this throat 5b-2
Is opened to the outside air by the air holes 5b-3, so that air is sucked into the flow path by the ejector effect. Therefore, air is mixed in the flow until it is discharged from the ejection hole 5b-1, and is ejected as a foam flow containing minute air bubbles.

On the other hand, from the wash water supply pipe 7b to the second flow path 5c
The washing water heading for is also foamed by sucking air from the air holes 5c-3 due to the acceleration at the throat 5c in the middle,
It is discharged from the slit 5c-1 as a convex arc-shaped cross-sectional flow.

Here, it is known that foamed water in which minute air bubbles are mixed in water has a small degree of scattering when it hits an object. For example, even a faucet installed in a kitchen sink may be foamed by sucking air from the outside, and it is used for washing dishes and for suppressing the splash of water dripping into the sink.

Due to such a property of foam water, the ejection hole 5
Water splash after the wash water from b-1 and the slit 5c-1 hits a local part is suppressed, and the range in which the wash water is scattered becomes small.

Further, by making the opening area of the slit 5c-1 larger than that of the ejection hole 5b-1, the discharge flow velocity of the washing water from the slit 5c-1 can be increased.
Slower than the release flow rate from. That is, the ejection hole 5b
The water pressure of the wash water from -1 is strong, and the wash water from the slit 5c-1 can tend to be weaker than this. Since the ejection head 5a of the nozzle body 5 is inclined upward, the ejection hole 5b-1 and the slit 5c-
The form of the flow of the washing water from 1 is as shown in FIG.

In FIG. 5, the flow of washing water from the ejection holes 5b-1 (hereinafter, referred to as "main flow") becomes a linear shape having a small diameter and draws a streamline that linearly goes to the local portion P so that the water force is changed. The stronger the strength, the more this linearity is maintained. On the other hand, the flow of cleaning water discharged from the slit 5c-1 (hereinafter referred to as "substream") has a weak water force and the slit 5c-1.
Since it is a water film-shaped water discharge with an arc-shaped cross section that follows the opening shape of, the flow line draws a streamline that gradually bends downward due to the weakness of the flow and the effect of gravity.

In such a field of the main stream and the side stream, it is possible to set the strength of the respective water forces so that the streams merge before the local area P. That is, with such a setting, the sub-stream is lifted by the momentum of the main stream and at the same time is accelerated by being dragged by the main stream, and the sub-stream strikes the local area P in a state where the sub-stream merges so as to entirely enclose the main stream. . Therefore, the water splash due to the particularly strong main stream can be covered by the sub-stream outside the main stream, and the splash of the water splash is effectively prevented.

By joining the main stream and the sub stream as described above, water splash can be suppressed, and the legs and the like are not wet and the wash water is not scattered around the toilet body 1. Further, it is optimal to foam both the substream and the main stream to suppress the scattering, but it is possible to foam only one of the substream and the main stream, or neither foams. However, it is possible to prevent water splashing.

In order to cover the main stream for the purpose of preventing water splash, it is possible to discharge the side stream from the entire circumference of the main stream, but a large amount of washing water is required to discharge the side stream from the entire circumference. Therefore, since the heat exchanger of the apparatus becomes large in size, it is optimal to use an arc-shaped jet port such as the slit 5c-1 shown in the figure. Further, the main stream is ejected vertically from the ejection hole 5b-1, and the sub-stream covering this main stream is slit 5
It is also possible to join the main stream and the side stream by discharging obliquely from c-1 toward the main stream. In any case, in the case of local cleaning, water splashes most to the back of the body, so by spouting the main stream diagonally upward and joining the side stream from above, the effect of suppressing the splashing of water to the rear is achieved. Can be obtained.

Further, the inclination angle of the axis of the jet head 5a of the nozzle body 5 is preferably in the range of 60 to 70 ° as described above. For example, if the cleaning water is sprayed at an angle larger than this range or if the cleaning water is sprayed in the vertical direction, there is a strong tendency for the water to bounce back to the back of the body, and even if there is a sidestream, the spread of the splash cannot be prevented. . Also,
If the angle is smaller than this angle range, the flow line of the wash water slips and passes through the local portion, and the washing power is reduced.

The slit 5c-1 for the sidestream may have a streamline cross section of the sidestream so as to cover the upper side of the streamline of the main stream, and therefore, an inferior arc shape as shown in FIG. 4 is sufficient. Therefore, even if the flow rate of the sidestream is not increased, it is possible to effectively prevent the diffusion of water splash as described above, and it is possible to reduce the flow rate of the cleaning water that does not directly contribute to the local cleaning. It is possible to avoid wasting water.

In the embodiment, the Japanese style toilet body 1 is provided with the local cleaning function, but the nozzle body 5 which can prevent the spouting of the foamed cleaning water and the diffusion of the splashed water by the side stream and the main stream. It is needless to say that the peripheral equipment can be applied to a warm water flush toilet seat attached to a conventionally known seat toilet.

[0045]

According to the nozzle device for local cleaning of the present invention,
The scattering of the mainstream of cleaning is suppressed by the sidestream that covers the streamline, so the range of splashing of the cleaning water can be narrowed,
It can be used hygienically without getting the user's legs or the floor around the toilet bowl wet. When the main stream of washing and the substream of washing are foamed water, splashing of water is further effectively suppressed, and a comfortable environment can be maintained around the toilet bowl.

Further, in the Japanese-style toilet bowl of the present invention, since water splashing by the nozzle device used as the local cleaning means is effectively suppressed, it is possible to avoid wetting the body other than the buttocks, and the practicality is greatly improved. To do.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a nozzle device for local cleaning of the present invention and a Japanese-style toilet attached thereto.

FIG. 2 is a cutaway plan view showing a layout of a toilet body and a local cleaning device.

3 is an enlarged vertical sectional view taken along the line AA of FIG.

FIG. 4 is a detailed view of the nozzle body, in which (a) of the figure is a vertical cross-sectional view taken along a plane including an axis, and (b) of the figure is taken along the line BB in FIG. It is an end view.

5A and 5B are views showing flow patterns of a main flow and a sub-flow from the ejection head, in which FIG. 5A is a side cutaway view, and FIG.
FIG. 7 is a schematic cross-sectional view taken along the line C-C in FIG.

[Explanation of symbols]

 1 Toilet body 2 Casing 3 Functional unit 5 Nozzle body 5a Jet head 5b First flow path 5c Second flow path

Front page continuation (72) Shinji Shibata, Shinji Shibata, 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Totoki Equipment Co., Ltd. (72) Hiroyuki Matsushita 2-chome, Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka No. 1 Totoki Co., Ltd. (72) Inventor Sadahiko Koshiro 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Totoki Co., Ltd.

Claims (7)

[Claims] 1. A nozzle device provided in a local cleaning device, wherein two systems of cleaning water flow paths are formed in a nozzle body, and a main cleaning flow directed locally is spoutable from the end of one cleaning water flow path, and the other A nozzle device for local cleaning, wherein a sub-stream covering at least a circular arc shape can be ejected from the end of the cleaning water flow path to the streamline of the main cleaning stream, and the water velocity of the sub-stream is made smaller than that of the main cleaning stream. 2. The two systems in which the mainstream of cleaning is jetted obliquely and the substream is jetted from above so that the substream can intersect with the mainstream of washing by a natural drop due to gravity before a cleaning point. The nozzle device for local cleaning according to claim 1, wherein each water flow from the cleaning water flow path can be set. 3. The nozzle device for local cleaning according to claim 1, wherein the sub-stream is a foam water flow mixed with air sucked into the cleaning water flow path by utilizing an ejector effect. 4. The nozzle device for local cleaning according to claim 1, wherein the main cleaning flow and the sub-current flow are foam water flows in which air sucked by using an ejector effect is mixed in respective cleaning water flow paths. 5. A Japanese-style toilet including a local washing means that can be retracted from a casing attached to the Japanese-style toilet body toward the rear of the bowl portion of the toilet body, wherein the local washing means is used. A Japanese-style toilet with a cleaning function that serves as a nozzle device for local cleaning. 6. The Japanese-style toilet bowl with a cleaning function according to claim 5, wherein the nozzle device for local cleaning has the configuration according to any one of claims 2 to 4. 7. The nozzle main body of the nozzle device for local cleaning is connected to the casing as a discharge angle in which the angle between the streamlines of the main and substreams of cleaning and the horizontal plane is in the range of 60 to 70 °. The Japanese-style toilet bowl with a cleaning function according to claim 5 or 6.