JP2000008450A - Sanitary flush equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the control of water discharge shape, water discharge, water discharge position, water discharge speed and water discharge ON-OFF at a high speed thereby achieving a high responsibility and stable, reliable control. SOLUTION: Flushing suited to user's taste can be carried out by combining together flow regulator/shut-off valve 42 and a discharge oscillating portion 70 in alignment with the selection of washing mode selected by the user. When the washing mode is selected, an electric signal is transmitted from an electric controller 40 and the discharge oscillating motor 74 and an oscillating cam 73 coupled to it are rotated. Also, the oscillating cam 73 pushes the inner surface of a recessed portion of an oscillating discharge nozzle 72 to the outer side, by which a slope is given to the oscillating discharge nozzle 72. Therefore, by the rotation of the oscillating cam 73, the slope of the oscillating discharge nozzle 72 is varied with time by a predetermined angle, and the discharge direction draws a predetermined path with time and changes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing apparatus for washing a local part of a human body after stool, and more particularly to an apparatus for controlling washing water.

[0002]

2. Description of the Related Art Conventionally, there has been a sanitary washing apparatus for controlling washing water as shown in FIGS. In FIG. 8 (for example, Japanese Patent Publication No. 2-16420), reference numeral 82 denotes a support fitting attached to the bottom of the main body case 84.
The cleaning water injection nozzle 81 is rotatably supported on the shaft 2 by a shaft 83. Reference numeral 85 denotes an oscillating motor supported by a supporting bracket 82. An eccentric cam 86 is mounted on the axis of the oscillating motor 85.
The eccentric cam 86 is engaged with a swing follower 87 attached to the washing water injection nozzle 81. Therefore, with this configuration, when the swing motor 85 rotates, the eccentric cam 86 causes the washing water injection nozzle 81 to swing forward and backward. By mechanically driving the washing water injection nozzle 81 from the outside in this way, by causing the movement of the washing water injection direction to draw a predetermined trajectory,
Comfortable cleaning including the surrounding area can be performed easily.

FIG. 9 is a view for explaining another conventional technical problem. A solenoid valve 9 for opening and closing a water passage outside a washing nozzle is shown.
4, a flow regulating valve 92 driven by a flow regulating motor 93,
It comprises a check valve 91 and the like. When the user instructs cleaning, the drive device 61 is driven to advance the nozzle body 50 to the cleaning position, and the electromagnetic valve 91 installed outside the cleaning nozzle is opened to start jetting of the cleaning water. The flow rate of the washing water is controlled by a flow control valve 92 driven by a flow control motor 93 installed outside the cleaning nozzle. And
After the washing is completed, when the end of the washing is instructed, the electromagnetic valve 94 is closed to terminate the ejection of the washing water, and thereafter, the driving device 61 is reversed to retract the nozzle body 50 to the storage position. A retractable cleaning nozzle and a flow control valve 92 and a solenoid valve 9 installed outside the cleaning nozzle
4 and the check valve 91 are made of a flexible hose 95 made of vinyl.
Connected by

[0004]

The conventional sanitary washing nozzle as shown in FIG. 8 can perform washing in a wide range, but has a structure in which the entire washing water injection nozzle is oscillated by an external oscillating motor. Since the swing portion is large, swing at high speed is impossible. In addition, since the oscillating portion is as large as the entire nozzle, a large torque is required for the oscillating motor, and vibration and noise are also large. Furthermore, since the distance between the rocking motor and the water discharge port is large, when minute control is required, the drive is uncertain and unreliable.

Further, in the conventional sanitary washing nozzle as shown in FIG. 9, the distance between the flow control motor and the water outlet is large, and a flexible hose or the like is movable between the flow control motor and the water outlet. Are present. For this reason, when changing the flow rate in a fast cycle to improve the massage effect and cleaning effect, or when you want to discharge water intermittently,
The control amount was relaxed between the flow regulating motor and the water outlet, and it was not possible to give a highly responsive change or a reliable change.

The present invention solves the above-mentioned conventional problems, and controls the water discharge shape, the water discharge flow rate, the water discharge position, the water discharge speed, the water discharge ON-OFF, etc. at a high speed, and has high responsiveness and high reliability. The purpose is to enable stable control.

[0007]

Means for Solving the Problems and Action / Effect To achieve the above object, a sanitary washing apparatus according to a first aspect of the present invention comprises a washing water supply means and a water supply passage communicating with the washing water supply means. A washing nozzle body having a spout for discharging the washing water, and instructing means for instructing a spouting state of the washing water, the washing water being discharged from the washing water and / or the spout through the water supply passage near the spout. And a water discharge control means for controlling the flush water. According to this configuration, since the water discharge control means is arranged near the water discharge port, the control amount transmission mechanism can be simplified, and the overall configuration can be made compact. Further, by this, the control amount of the water discharge can be reliably and quickly transmitted to the water discharge port, so that the stable water discharge control with high responsiveness can be performed.

The sanitary washing device according to the second aspect of the present invention is provided with a water discharge control means for controlling a water discharge state of the cleaning water discharged from the water discharge port near the water discharge port. With this configuration, it is possible to control the water discharge state immediately before the water discharge port, so that it is possible to control the water discharge shape at a high speed in terms of time. In addition, it is possible to control with a quick response from a small change to a large change of the water discharge shape.

The sanitary washing device according to a third aspect of the present invention is provided with water discharge control means for temporally controlling a continuous movement of drawing a predetermined trajectory near the water discharge port. According to this configuration, since the water discharge control means can be arranged immediately before the water discharge port, the driven portion can be made very compact. Therefore, the drive device can move with a small torque, can reduce vibration and noise very much, and can also make the water discharge move at high speed. Further, since the distance between the driving portion and the water discharge port is small, a minute movement of a small amount of water discharge can be controlled.

The sanitary washing device according to a fourth aspect of the present invention is provided with a water discharge control means for temporally controlling the amount of discharged water, the speed of discharged water, or the ON / OFF state of discharged water, near the water discharge port. Things. According to this configuration, it is possible to control the amount of discharged water, the speed of discharged water, or ON-OFF of discharged water, immediately before the water discharge port.
Even when the cleaning nozzle comes in and out after the cleaning, it moves together with the water discharge port and is connected by an integrated passage, so that the influence of the passage is extremely small. Therefore, it is possible to change the amount and speed of the water discharge in a short cycle, and it is possible to change the water discharge with good responsiveness and certainty. With this configuration, it is possible to intermittently discharge water as one mode of changing the amount of water discharged over time. By intermittently discharging water to stimulate the cleaning surface and the discontinuous fluid, it is possible to improve the massage effect and the cleaning performance.

The sanitary washing device according to a fifth aspect of the present invention is configured such that the water discharge control means operates based on an electric signal. According to this configuration, since water discharge is controlled by an electric signal, reliable and multi-step control can be freely performed, and control with high responsiveness is enabled.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of a Western style toilet equipped with a local cleaning device.

As shown in FIG. 1, the local cleaning device 10 comprises:
A casing body 11 which is attached to the toilet body 15 and contains a device for heating washing water or blowing out hot air, and a nozzle device 12 for discharging washing water to a local area.
And an operation panel 13 for performing an operation, and hot water for controlling hot water discharge and nozzle position based on the operation of the operation panel 13.
/ Nozzle control device 14 (see FIG. 2). In the embodiment, the toilet lid 16 and the toilet seat 17 are also attached to the casing body 11 so as to be openable and closable.

The external water source is a ball surface 15 of the toilet body 15.
Although the piping is connected to a washing water tank (not shown) for storing the washing water flowing to the a, the piping is also connected to the local cleaning device 10 from the branch metal fitting 20 on the way through the connecting pipe 21 as shown in FIG. It is being supplied with water. The local cleaning device 10 includes, from the upstream side, a valve unit 26 including a water supply adapter 22, a pressure reducing valve 23, and a safety valve 25, and heat for heating supplied water to an appropriate temperature with a heater 28 while detecting the temperature of the supplied water with a temperature detector 27. A heat exchanger unit 31 comprising an exchanger 29 and a float switch 30 for detecting a water discharge state is provided. The nozzle device 12 is connected to the end of the heat exchanger unit 31.
The nozzle device 12 includes a driving device 61 for driving the nozzle body 50 in the axial direction.

Next, the nozzle device 12 will be described in detail with reference to FIGS. As shown in FIG. 4, the nozzle device 12 includes a base 51 fixed to a lower portion of the casing body 11 and having a slide surface 52, and a pipe-shaped nozzle body 50 slidably mounted on the slide surface 52 of the base 51. A nozzle head 53 fixed to the tip of the nozzle body 50, a driving device 61 for moving the nozzle body 50 forward and backward, and a nozzle cleaning cover 60 for cleaning the nozzle head 53.

FIG. 5 is a view showing the internal structure of the nozzle body 50. A check valve 41 and a flow control / water stop valve 42 are provided inside the nozzle.
And a water discharge rocking unit 70 that rocks water discharge on a predetermined trajectory is connected by a water supply path 44. The flow control / water stop valve 42 is provided with a fixed ceramic disc 45 and a flow control stepping motor 4.
The rotating ceramic disk 46 rotated by 7 changes the flow path area according to the rotation position, and adjusts or stops the flow rate of the washing water. The rotating ceramic disk 46 is always fixed to the fixed ceramic disk 45 by a spring 48 so as not to cause leakage from the water stopping surface particularly when water is stopped.
Has been pushed away. Further, the water discharge oscillating unit 70 is provided with a water discharge unit space 71 connected to the water supply passage 44, a oscillating water discharging nozzle 72 for oscillatingly discharging the cleaning water, and a device for oscillating the oscillating water discharging nozzle 72 along a predetermined trajectory. Outlet swing cam 73
And a small electric motor 74 for rotating the cam at a predetermined number of revolutions. The tip of the oscillating water discharge nozzle 72 is swingably connected to the nozzle body 50, and the water discharge port oscillating cam 73 arranged on the opposite side always presses the inner surface of the oscillating water discharge nozzle 72 at a constant angle. Has been defeated. The oscillating water discharge nozzle 72 has a straight portion, and a part thereof is always connected to a hole communicating with the water discharge portion space and the water discharge port.

As shown in FIG. 3, the hot water / nozzle control device 14 is an electronic control device 4 comprising a microcomputer.
The signal is input from the operation panel 13 to the anal cleaning button 13a, the bidet cleaning button 13b, the stop button 13c, and the flow rate adjustment button 13d, and the signal from the seating sensor 37 provided on the toilet seat 17 is input. The input is used to control the flow regulating water stop valve 42, the heater 28, and the like.

The general operation of each unit will be described. When the user sits on the toilet seat 17, a signal to that effect is output from the seating sensor 37, and thereafter, when the user operates the operation panel 13 and instructs, for example, cleaning after toilet use, the driving device 6
1 is driven to integrally advance the nozzle body 50 to the cleaning position, the flow control / water stop valve 42 is operated, and the discharge of the cleaning water is started. In addition, the flow rate of the washing water is determined by the flow rate adjusting button 1.
The flow control / water stop valve 42 is controlled based on the operation amount of 3d. Further, the small electric motor rotates in accordance with the washing mode selected by the user to rotate the oscillating water discharge nozzle.
When the stop button 13c on the operation panel 13 is turned on after the washing is completed, and the end of the washing is instructed, the flow control / water stop valve 42 closes the water passage and ends the discharge of the washing water.
1 is reversed to retract the nozzle body 50 to the storage position.

The flow of water inside the nozzle body 50 will be described in detail. When the user instructs the washing, the flow adjusting stepping motor 47 of the flow adjusting / water stop valve 42 and the rotating ceramic disk 46 connected thereto rotate. When the position of the groove provided in the rotating ceramic disk 46 and the position of the hole provided in the fixed ceramic disk 45 overlap, a water supply passage is formed and the washing water starts flowing. FIG.
3 shows the shapes of the grooves of the rotating ceramic disk 46 and the fixed ceramic disk 45. Thus, the rotating ceramic disk 46 and the fixed ceramic disk 45
Since the water supply passage formed by the water supply passage is formed so that its cross-sectional area changes depending on the rotational position, it is possible to adjust not only the water stoppage but also the flow rate.

As described above, since the flow control / water stop valve 42 is installed near the water discharge port, and particularly, is installed inside the nozzle body 50, it is necessary to move the nozzle body 50 back and forth before and after washing. Since there is no flexible part that connects the movable part and the fixed part, the response of water flow adjustment and water stoppage and water passage is extremely fast, and water stoppage and water passage are repeated at high speed, and the flow rate is changed in a short cycle. Follow well in some cases. In addition, reliable control is possible with less influence of the water supply pipe.

The check valve 41 mounted upstream of the flow control / water stop valve 42 is for preventing sewage from flowing backward from the water discharge port. Even with this check function, since it is attached near the water discharge port, it is less affected by the water supply pipe and reliable control is possible.

When the water supply is started by the operation of the flow control / water stop valve 42, the washing water is supplied to the check valve 41, the water supply passage 44, and the flow control / water stop valve 42.
The water flows to the water stop valve 42, the water supply path 44, and the water discharge swinging unit 70, and is discharged from the water discharge port 75. Here, in accordance with the selection of the cleaning mode selected by the user, the flow control / water stop valve 42 and the water discharge swinging unit 70 can be combined to perform the cleaning according to preference. When the cleaning mode is selected, the electric control device 40
An electric signal is sent to rotate the water discharge rocking motor 74 and the rocking cam 73 connected thereto. Swing cam 7
3 presses the inner surface of the concave portion of the oscillating water discharge nozzle 72 outward, thereby imparting the inclination to the oscillating water discharge nozzle 72. However, the rotation of the oscillating cam 73 causes the inclination of the oscillating water discharge nozzle 72 to change with time. At a predetermined angle. The direction of the water discharge is determined by the inclination of the straight line portion immediately before the water discharge port. Since the inclination of the straight line portion changes over time by the cam, the water discharge direction changes along a predetermined locus over time. In addition, a part of the straight line portion immediately before the water discharge port is a water discharge part space 71.
, So that the water can be passed even if the swinging water discharge nozzle 72 is inclined at any angle.

As described above, the water discharge swinging unit 70 is provided with the water discharge port 75.
The movable part for oscillating water discharge is composed of very small parts. Therefore, motion can be performed with a motor having a small torque, vibration and noise are small, and the reliability and reliability of the driving part are greatly improved.
In addition, high-speed movement is possible, and the oscillating water discharge nozzle 72
The swing locus can be freely set by the shape of the inner surface of the concave portion. Further, since the oscillating water discharge nozzle 72 operates based on an electric signal, reliable and stepless control can be freely performed, and control with high responsiveness is also possible.

In this embodiment, the spouting water oscillating motor 74 is operated based on an electric signal. However, the motor 74 is not limited to an electric motor using an electromagnetic force, but may be a bimetal or a shape memory alloy using a piezoelectric element or heat as a driving source. , An electric signal may be used as a trigger.

FIG. 7 shows another embodiment of the water discharge control means mounted near the water discharge port. The control means controls the flow control / water stop valve 42 for temporally controlling the amount of water discharge.
And an intermittent water discharge unit 76 for controlling the ON-OFF time of water discharge. The intermittent water discharge unit 76
A minute valve body 77 having a permanent magnet 77a attached to the head disposed at the tip of the nozzle body, a micro electromagnetic coil 78 made by micromachining technology of a semiconductor for attracting the head, and a spring for pressing the valve body against the nozzle body And a body 79. When the user instructs cleaning, the flow control / water stop valve 42 is operated to start the discharge of the cleaning water. At the same time, when a current is applied to the electromagnetic coil 78 of the intermittent water discharge unit 76 to generate a magnetic force according to the cleaning mode selected by the user, the valve body 77
Is attracted by the magnetic force against the force of the spring body 79, the valve comes off, and the washing water flows out of the gap. By passing an alternating current through the electromagnetic coil 78 in a short cycle, the direction of the magnetic force can be changed, and the opening and closing operation can be repeated by pressing or pulling the valve element 77. As described above, since the valve body is opened and closed immediately before the water discharge port 75, there is no deterioration in responsiveness due to minute air existing in the water supply pipe or expansion of the pipe, and intermittent water discharge in a short cycle or short time. It is possible to discharge water for hours. Furthermore, since the minute valve body 77 operates based on the electric signal,
Reliable and stepless control can be freely performed, and fast responsive control is also possible.

[Brief description of the drawings]

FIG. 1 is an external view of a sanitary washing device showing one embodiment of the present invention.

FIG. 2 is a block diagram illustrating a waterway system of the sanitary washing device according to the embodiment.

FIG. 3 is a block diagram for explaining an electronic control device of the sanitary washing device according to the embodiment and its input / output devices.

FIG. 4 is a side view showing the nozzle device 12 partially broken away.

FIG. 5 is a sectional view of a nozzle body according to the first embodiment of the present invention.

FIG. 6 is an explanatory view of a seat surface of the flow regulating water stop valve according to the first embodiment of the present invention.

FIG. 7 is a sectional view of a nozzle body according to a second embodiment of the present invention.

FIG. 8 is an explanatory diagram for explaining a problem of a conventional technique.

FIG. 9 is an explanatory diagram of a waterway system for explaining another conventional technical problem.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Local cleaning device, 11 ... Casing main body, 12 ... Nozzle device, 13 ... Operation panel, 13a ... Anal cleaning button, 13b ... Bidet cleaning button, 13c ... Stop button, 1
3d: button for flow rate adjustment, 14: hot water / nozzle control device, 15: toilet body, 15a: ball surface, 16: toilet lid,
17 ... toilet seat, 20 ... branch fitting, 21 ... connecting pipe, 22 ... water supply adapter, 23 ... pressure reducing valve, 25 ... safety valve, 26 ... valve unit, 27 ... temperature detector, 28 ... heater, 29 ...
Heat exchanger, 30: float switch, 31: heat exchanger unit, 37: seat sensor, 40: electronic control unit, 41
... check valve, 42 ... flow control / water stop valve, 44 ... water supply channel, 45 ...
Fixed ceramic disk, 46: rotating ceramic disk, 47: stepping motor for flow control, 48: spring, 50: nozzle body, 51: base, 52: slide surface, 53: nozzle head, 60: nozzle cleaning cover 61: driving device, 70: water discharge swinging part, 71: water discharge part space, 72: rocking water discharge nozzle, 73: water discharge port rocking cam,
74 small electric motor, 75 water outlet, 76 intermittent water discharge unit, 77 valve element, 77a permanent magnet, 78 electromagnetic coil, 79 spring element, 81 washing water injection nozzle, 82
... Supporting bracket, 83 ... Shaft, 84 ... Main body case, 85 ... Swing motor, 86 ... Eccentric cam, 87 ... Swing follower, 91 ... Check valve, 92 ... Flow regulating valve, 93 ... Flow regulating motor, 94 …Check valve

Continuation of front page (72) Inventor Hisato Haraga 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka

Claims (5)

[Claims] 1. A washing nozzle body having a washing water supply means, a water supply passage communicating with the washing water supply means and a spout for discharging washing water, and an instruction means for instructing a state of spouting of the washing water, A sanitary washing apparatus comprising a water discharge control means for controlling the wash water flowing through the water supply passage and / or the wash water discharged from the water discharge port near the water discharge port. 2. The water discharge control means controls a water discharge state of wash water discharged from a water discharge port.
Sanitary washing equipment. 3. The sanitary washing apparatus according to claim 2, wherein said water discharge control means controls a continuous movement that draws a predetermined trajectory. 4. The sanitary washing apparatus according to claim 2, wherein the water discharge control means controls the amount of water discharged, the speed of water discharge, or ON-OFF of the water discharge. 5. The sanitary washing apparatus according to claim 1, wherein the water discharge control means operates based on an electric signal.