JPS61229039A - Sanitary washing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a sanitary washing device, and furthermore, in business, the positioning of a telescopic nozzle for discharging hot water can be performed by timing the power supply frequency of a motor. The present invention relates to a sanitary cleaning device as described above.

(Prior Art) The cleaning positions of the telescopic nozzle in a sanitary washing device having a hot water washing function are generally set at the anus region and the bidet region. Conventionally, methods using water pressure and methods using a motor are known as methods for driving the telescopic nozzle to these two positions. The former method introduces water pressure into a nozzle body that slidably accommodates a telescopic nozzle to push the telescopic nozzle to a predetermined position in front of the nozzle main body, and uses the return force of a spring to push the telescopic nozzle into the nozzle main body. The latter is configured so that the telescopic nozzle is moved in and out of the nozzle body by the rotational driving force of a motor. In these conventional devices,
Especially for the latter electric type, the positioning control of the telescopic nozzle uses a positioning sensor such as a magnetic sensor or optical sensor, which is installed at a position where the movement of the telescopic nozzle can be monitored. A feedback control method is adopted in which the ON/OFF control of the drive unit such as a motor is performed by sensing the signal and feeding back the signal to the drive unit such as a motor.

(Problems to be Solved by the Invention) In the latter case where a positioning sensor is used in the conventional device described above, it is difficult to improve the positioning accuracy of the telescopic nozzle due to variations in its performance, and cleaning is required. Not only does the telescopic nozzle become misaligned with respect to the desired location, making it inconvenient to use, but the control system becomes complicated, and especially in hydraulic positioning control devices, the structure becomes even more complicated, making it difficult to clean the anus and watch videos. In a device that controls two cleaning positions, not only does the waterway system of the telescopic nozzle become complicated, but the telescopic nozzle itself becomes large, and there are drawbacks such as incomplete extension when the water pressure is low.

The present invention was devised in view of the above-mentioned circumstances, and aims to improve the positioning accuracy of a telescopic nozzle using an open-loop control method that does not use a positioning sensor.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 4 corresponding to the embodiment. As a drive device, there is a motor 5 that rotates in synchronization with the power frequency and pulses of the synchronous motor, pulse motor, servo motor, etc., a means for counting the number of cycles of the power supply frequency of this motor 5, and a means for measuring the number of cycles of the clocked cycle. It is equipped with a means for determining the current value of the nozzle 3 and a means for comparing this current value with a designated value set and stored in advance, and controls ON/OFF of the power supply circuit of the motor 5 based on the comparison value between the current value and the designated value. do.

As a result, the telescopic nozzle 3 can be positioned in two positions: the stored position and the used state.

(Function) The rotation speed or rotation angle of the motor 5 with respect to the unit cycle number of the power supply frequency is specified, and the telescopic nozzle 3 is connected to the rotation axis of the motor 5 and expands and contracts from the nozzle body 1.
The amount of movement is also specified. Therefore, by counting the number of cycles of the power supply frequency simultaneously with the rotation of the motor 5, it is possible to measure the position of the telescopic nozzle 3, that is, the current value. On the other hand, the telescopic nozzle 3 is in the storage position C and in the second position A in the used state.

If B is set and stored in advance as a designated value, it can be compared with the current value of the telescopic nozzle, and when the two values become the same, the power supply circuit of the motor 5 can be turned off to stop this.

(Example) Preferred embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show the structure of a sanitary cleaning device according to the present invention, in which 1 is a nozzle body, 2 is a drum disposed at the rear of the nozzle body 1, and 3 is a drum housed in the nozzle body 1. It is a telescopic nozzle that can freely go in and out from its tip. A connecting spring 4 is arranged at the rear of the telescopic nozzle 3, with one end connected to the rear end of the telescopic nozzle 3, and the other end connected to the drum 2.
By rotating the drum 2, the telescopic nozzle 3 can be advanced forward of the nozzle body 1 and retreated into the nozzle body 1. A motor 5 that rotates in synchronization with the frequency of the commercial power supply is connected to this drum 2.
Concatenate. Reference numerals 6 and 7 are stoppers that are formed in the nozzle body 1 and restrict the strokes of the telescopic nozzle 3 on the advancing side and the retreating side, respectively.

FIG. 3 is a block diagram showing a drive control means for the motor 5, and a designated position setting means 9 is provided on the side of a push button or other operation means 8 disposed near the sanitary washing device, and
A current position determination means 11 is provided on the side of the commercial frequency clock converter 10 disposed on the power supply side of the system, and both are further connected to a current position and designated position comparison time measuring means 12, and the designated position setting means 9 stores the settings in advance. The specified values regarding the use state 2 position and storage position of the telescopic nozzle 3 are compared with the current value regarding the current position of the telescopic nozzle 3 measured by the current position determining means 11. The power supply circuit of the motor 5 for advancing and retracting the telescopic nozzle 3 is connected to the current position and specified position comparison and timing means 12 via the motor control means 13, and is controlled to be turned on and off based on the comparison value. .

FIG. 4 shows a flowchart regarding the sanitary cleaning device according to the present invention, where MT is a current position timer, P
T is a designated position timer. When the operating means 8 is operated to turn on the power supply circuit, the motor 5 rotates, and at the same time, the number of cycles of the power supply frequency is counted. When the current value of the nozzle 3 becomes equal to the specified value in the operating state, the power circuit is turned OFF, the rotation of the motor 5 is stopped, and the telescopic nozzle 3 is moved to the anus cleaning position A shown in FIG. 1 or bidet cleaning. Stop at position B.

When storing the telescopic nozzle 3, the motor 5 is driven for several more cycles from the point where the specified value regarding the storage position C of the telescopic nozzle 3 and the current value of the telescopic nozzle 3 become equal. As a result, the storage position C of the telescopic nozzle 3 always returns to the 0 position, and positional deviations caused by repeatedly driving and stopping the motor 5 can be corrected.

This invention uses a synchronous motor and measures the number of cycles of its power supply frequency, thereby making it possible in principle to accurately control the position of the telescopic nozzle 3. However, the position of the telescopic nozzle 3 may shift due to temporary locking of the nozzle drive unit or tampering. Therefore, the present invention is provided with stoppers 6 and 7 that restrict the strokes of the extendable and retractable nozzles 3, respectively, as described above. By overdriving each at the storage position C, the telescopic nozzle 3 is brought into contact with the stopper 6° 7, thereby providing a self-correction function for positional deviation.

Furthermore, if desired, it is possible to configure the motor 5 to be driven from the O voltage of the power supply by means such as semiconductor control, which can eliminate clocking errors in the number of cycles and improve the control of the stop position of the nozzle 3. Accuracy can be further improved.

(Effects of the Invention) Since the present invention is constructed as described above, the telescopic nozzle can be positioned with high accuracy by the oven loop control method that does not use a positioning sensor, and the structure is simple and sanitary and easy to use. A cleaning device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing the structure of the sanitary cleaning device according to the present invention, FIG. 2 is a partially cutaway plan view, FIG. 3 is a block diagram showing the motor drive control means, and FIG. 4 is the same It is a flowchart. 1... Nozzle body 2... Drum 3... Telescopic nozzle 4... Connection spring 5... Motor

Claims (1)

[Scope of Claims] 1. A motor that rotates in synchronization with the power supply frequency, means for counting the number of cycles of the power supply frequency of this motor, and means for determining the current value of the telescopic nozzle based on the counted number of cycles; The present invention is characterized by comprising means for comparing this current value with a designated value set and stored in advance, and by controlling the power supply circuit of the motor to ON/OFF based on the comparison value between the current value and the designated value, and positioning the telescopic nozzle. sanitary cleaning equipment. 2. The sanitary cleaning device according to claim 1, characterized in that a stopper mechanism is provided at both ends of the extendable nozzle. 3. The sanitary cleaning device according to claim 1, wherein the motor starts driving upon detecting zero voltage of the power source.