JPH0819712B2 - Nozzle control device for hot water cleaning device - Google Patents

Description

Detailed Description of the Invention 【Technical field】

The present invention relates to a device for controlling a feeding operation and a storing operation of a cleaning nozzle in a warm water cleaning device used for cleaning anus and bidet after toilet.

[Background Art]

The hot water washing device is used for anus washing and bidet use, but since the use position is different between anus washing and bidet use,
Hot water washing device with nozzle for anus washing, nozzle for bidet and two nozzles, and hot water for anus washing and bidet with one nozzle to control the amount of extension There is a cleaning device. The present invention is a hot water washing device provided with the latter one nozzle. As a conventional control mechanism of a hot water washing device that controls the nozzle position for anus washing and bidet use with one nozzle, a nozzle is slid by a motor, and the voltage application time of the motor is controlled to extend the nozzle. The structure is such that the amount is controlled or the retreat distance is controlled.
That is, when operating normally, the nozzle 1 is stopped at position a in FIG. 6 (a) during anus washing, and stopped at position b in FIG. 6 (a) during bidet. But
Due to fluctuations in the voltage applied to the motor, the amount of extension of the nozzle 1 is too large as in (a) and (b) of FIG. 6 (c), or the amount of extension of the nozzle 1 is insufficient as (a) and (b) in FIG. 6 (b). There was something to do. However, when the feeding position of the nozzle 1 is deviated in this way, the ejection position of the washing water deviates from the local portion to wet an extra portion, or a local insufficient washing occurs. In addition, if the amount of nozzle 1 is too large, the nozzle 1 is not housed when the nozzle 1 is housed and remains slightly protruding. Conversely, if the amount of nozzle 1 is too small, the nozzle 1 is stored when the nozzle 1 is housed. 1 has a problem that the motor is driven and the motor is overloaded, and since there is no reset mechanism, once the position of the nozzle 1 is displaced, the user manually stores the position of the nozzle 1 again. The nozzle 1 was left out of the delivery position and the storage position unless it was fitted exactly.

[Object of the invention]

The present invention has been made in view of the above technical background, and an object of the present invention is to make it possible to accurately control the amount of delivery of the nozzle and to cause the nozzle position to shift. Even in this case, the nozzle storage position is reset so that the misalignment can be corrected during storage.

DISCLOSURE OF THE INVENTION

The nozzle control device of the hot water cleaning device of the present invention includes a cleaning nozzle 1 that slides in the axial direction to perform a feeding operation and a storage operation, a motor 2 that drives the nozzle 1, and a completion of the storage of the nozzle 1 when the nozzle 1 is stored. The position sensor 3 that detects the state and stops the motor 2, the slit disk 4 that rotates in conjunction with the movement of the nozzle 1, and the number of slits of the slit disk 4 when the nozzle 1 is extended are counted to determine the nozzle 1 And a photo interrupter 5 for stopping the motor 2 when the feeding amount reaches a predetermined distance. Then, the slit disk 4 that rotates in conjunction with the movement of the nozzle 1 is provided, the number of slits of the slit disk 4 is counted when the nozzle 1 is extended, and the motor 2 is turned on when the amount of extension of the nozzle 1 reaches a predetermined distance. Since the photo interrupter 5 to be stopped is provided, by counting the pulse signals oscillated every time the slit of the slit disk 4 passes through the photo interrupter 5, it is possible to be affected by fluctuations in the voltage applied to the motor 2. Instead, it is possible to accurately control the delivery amount of the nozzle 1. Furthermore, the nozzle 1
When the storage of the nozzle 1 is completed, the motor 2
Since the position sensor 3 for stopping the nozzle 1 is provided, even if the feeding position of the nozzle 1 deviates, when the nozzle 1 is stored, the nozzle 1 is stopped at the regular position by the position sensor 3 and reset, and the positional deviation of the nozzle 1 occurs. Will not be left until later operations. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First
What is shown in the figure is a nozzle drive unit 6 incorporated in a hot water washing device installed in a toilet bowl, which is located at the rear of the lower surface of the toilet seat. The nozzle 1 is slidably housed in the casing 7, and when slid, the nozzle 1 is extended from the casing 7 to the center of the toilet, or retracted to be housed in the casing 7. A water supply port 8 for injecting hot water in a hot water tank (not shown) is provided at the rear end of the nozzle 1, and a hot water discharge port 9 for discharging hot water is provided at the tip. The warm water injected from the mouth 8 into the nozzle 1 is vigorously discharged upward from the warm water discharge port 9 to clean the cleaning portion. Also, nozzle 1
A slider 10 is projectingly provided on the side surface of the rear end portion, and the slider 10 is slidably fitted in a guide groove 11 opened in the casing 7.
By sliding along the nozzle 1, the nozzle 1 can be drawn straight out and smoothly, or can be retracted. A limit switch 12 is mounted as a position sensor 3 on the upper surface of the rear end of the casing 7, and a sensing lever 13 of the limit switch 12 is located at the rear end of the guide groove 11. Then, when the nozzle 1 is being extended, the limit switch 12 is off as shown in FIG. 3, but when the nozzle 1 retracts and is housed in the casing 7, it is stored in the regular housing position. As shown in FIG. 2, the sensing lever 13 is pushed by the slider 10 of the nozzle 1, the limit switch 12 is turned on, and the motor 2 driving the nozzle 1 is stopped via the control circuit 19 to bring the nozzle 1 into a predetermined position. The nozzle 1 is made to stand still at the position, and as a result, the nozzle 1 is reset so that it is stored in the regular storage position each time it is stored. The motor 2 for driving the nozzle 1 is provided on the lower surface of the rear end portion of the casing 7. The rotation of the motor 2 is composed of a pinion 14 fitted to the shaft of the motor 2 and a first gear 15 and a second gear constituting a reduction mechanism. It is transmitted to the 16th and 3rd gears 17 while being decelerated. Further, the rotary motion of the third gear 17 is converted into a linear motion by a conversion means (not shown), and the slider is moved.
10 can be slid back and forth. As the converting means, a combination of a gear and a pinion, a belt wound around pulleys, or the like is used. As shown in FIG. 4, a large number of slits 20 are formed on the shaft 18 of the third gear 17.
A slit disk 4 having holes radially formed therein is fixed, and an edge of the slit disk 4 is inserted in a space between the light emitting diode LED of the photo interrupter 5 and the phototransistor PhotoTr. Then, the slit disk 4 rotates in conjunction with the rotation of the motor 2, and the slit 20 of the slit disk 4 becomes the light emitting diode LED and the phototransistor PhotoTr.
When it crosses between the and, the light emitted from the light emitting diode LED enters the phototransistor PhotoTr and one slit 20
One pulse is generated for each input to the control circuit 19,
Since the number of pulses is proportional to the amount of extension of the nozzle 1,
When the control circuit 19 counts the number of pulses corresponding to the nozzle cleaning amount for anal washing or the nozzle discharging amount for bidet, the motor 2 is stopped and the nozzle 1 is stopped at a predetermined position to perform the cleaning operation. is there. Therefore, the control circuit 19 that controls the driving and stopping of the motor 2 stops the motor 2 by the signal from the photo interrupter 5 when the nozzle 1 is extended, and when the nozzle 1 is housed, the position sensor 3 (limit switch 12) is used. The motor 2 is stopped by this signal.

【The invention's effect】

As described above, the present invention provides a slit disk that rotates in conjunction with the movement of the nozzle, counts the number of slits in the slit disk when the nozzle is extended, and stops the motor when the amount of extension of the nozzle reaches a predetermined distance. Since it is equipped with a photo interrupter, by counting the pulse signals that are oscillated every time the slit of the slit disk passes through the photo interrupter, the amount of nozzle extension can be controlled without being affected by fluctuations in the voltage applied to the motor. It can be controlled precisely. Therefore, it is difficult to wet a portion deviated from the local area due to poor position control of the nozzle or to cause poor cleaning. Furthermore, when the nozzle is stored, a position sensor that detects the completion state of the nozzle storage and stops the motor is provided, so if the nozzle is retracted and the nozzle is retracted, the nozzle will stop at the regular position by the position sensor. To be reset
The nozzle displacement is not left in the subsequent operation, and the manual operation of correcting the nozzle position is not required. Further, since the storage position of the nozzle is controlled by the limit switch, the nozzle does not remain protruding due to insufficient storage, and the motor is not driven even after storage and an overload is applied to the motor.

[Brief description of drawings]

FIG. 1 is a partially broken plan view showing an embodiment of the present invention,
2 and 3 are explanatory views of the operation of the above position sensor,
FIG. 4 is a perspective view of the above slit disk and photo interrupter, FIG. 5 is a circuit diagram of the same, and FIG. 6 is an operation explanatory diagram of a conventional example. 1 ... Nozzle, 2 ... Motor, 3 ... Position sensor, 4
…… Slit disk, 5 …… Photo interrupter.

Claims (1)

[Claims] 1. A cleaning nozzle that slides in an axial direction to perform a feeding operation and a storage operation, a motor that drives the nozzle, and a position sensor that detects the completion state of the nozzle storage when the nozzle is stored and stops the motor. And a slit disk that rotates in conjunction with the movement of the nozzle, and a photo interrupter that counts the number of slits in the slit disk when the nozzle is extended and stops the motor when the nozzle extension amount reaches a predetermined distance. A nozzle control device for a hot water cleaning device.