JPS6324719B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention provides a coin-operated washing machine that operates a program consisting of a series of steps such as water supply, washing, and draining when the amount of coins inserted reaches a set amount. Regarding.

(b) Prior art Conventional coin-operated washing machines that have a display device that displays the remaining operating time are disclosed in, for example, Japanese Patent Application Laid-Open No.
It is known from Publication No. 6099, but there was nothing to display the cumulative amount of coins inserted. For this reason, users may feel anxious if they forget how much they have inserted while inserting coins, and may end up inserting more than the set amount necessary for driving.

(c) Purpose of the Invention The purpose of the present invention is to provide a coin-operated washing machine that can eliminate the user's anxiety by displaying the remaining operating time and the amount of coins inserted on a single display device.

(d) Structure of the Invention For this purpose, the coin-operated washing machine of the present invention displays the input amount until and for a predetermined time after the input amount reaches the set amount, and displays the remaining operating time after the predetermined time has elapsed. It is equipped with a device.

(e) Embodiment Figure 1 is a front view of a coin-operated washing machine. 1 is a machine frame 2 which is a control box, and its front plate has coin slots 3 and 4 for inserting 50 yen coins and 100 yen coins. , a four-digit display device 5 (consisting of light emitting diodes (LEDs)) for displaying the remaining time and input amount.
and three process display devices 6 that display the progress of the process.
(consisting of LEDs) and a display device 7 (consisting of LEDs) for displaying the finishing agent injection timing are provided.

FIG. 2 is a block circuit diagram of the control section, in which a microcomputer 8 is used in this embodiment. 9
is an AC power supply, 10 is a DC power supply circuit that obtains the DC voltage (VDD) necessary to operate the microcomputer 8, and 11 is for retaining data in the memory (RAM) in the microcomputer 8 when the AC power supply is cut off. 12 is a charging resistor for charging the backup power source 11; 13 is a charging resistor for charging the backup power source 11;
14 is a reference voltage generation power supply, and 14 is a comparator circuit that compares the reference voltage and the backup voltage. When the backup voltage becomes lower than the reference voltage, it is determined that the data in the memory (RAM) cannot be retained.
Resets the contents of memory. Reference numeral 15 denotes a reset signal generating circuit which operates when the power is turned on and resets the data in the RAM.

Reference numeral 16 denotes an amount setting switch, which predetermines the amount required to start operation.After the power is turned on, the microcomputer 8 sets this switch
The signal from 6 is judged and stored in the RAM as the set amount. 17 is a signal 50 that outputs a signal when a 50 yen coin is inserted from the coin slot 3 for the 50 yen coin.
A yen coin detection switch 18 is a 100 yen coin detection switch that outputs a signal when a 100 yen coin is inserted into the coin slot 4 for 100 yen coins, 31 is a tank cleaning switch, 19 is a switch 16, 17,
In addition to 18 and 31, there are other switch groups that input signals to the microcomputer 8, such as a water level switch that detects the liquid level in the washing tub and a top cover switch that moves to open and close the top cover.

20 is a clockwise rotation drive circuit for the motor, 21 is a left rotation drive circuit for the motor, 22 is a drain valve and clutch drive circuit, and 23 is a water supply valve drive circuit, from which signals are output to output terminals A to D of the microcomputer 8, respectively. At this time, it is activated via the drive circuits 24-27. 5, 6 and 7 are the display devices, respectively.

Next, the operation will be explained based on the flowchart shown in FIG. After the power is turned on, the set amount is first stored in the RAM. Then, 50 yen coin detection switch 17 and 100 yen coin detection switch 18 detect 50 yen coins and 100 yen coins.
Each time the insertion of a yen coin is detected, 50 (yen) or 100 (yen) is added to the input amount memory in RAM. When the input amount exceeds the set amount, fully automatic operation consisting of a series of steps will begin.

While the input amount does not reach the set amount, that is, when the vehicle is not in operation, the contents of the input amount memory are displayed on the display device 5 as shown in FIG. In the figure, one segment 28 at the most significant digit is lit to indicate that the displayed content at that time is the input amount, and is herein named the "current amount" segment. The figure shows 250 yen.

When you are not driving, every time you insert a 50 yen coin or a 100 yen coin, the counter "5" in the RAM will be displayed.
SEC COUNTER” is set to “5”. (3rd
(See the program "COIN" in the figure) After that, this counter is decremented by 1 every second until it reaches "0". (Refer to the program ``COUNT'' in Figure 3.) When the input amount reaches the set amount, the operation will start, but while the operation is in progress, until the counter ``5 SEC COUNTER'' has not reached ``0'', the display device 5 will display the following information. The amount invested will continue to be displayed. When the counter "5 SEC COUNTER" reaches "0", the remaining operating time is displayed on the display device 5 as shown in FIG. (See the program "DISPLAY" in FIG. 3) The lighting of one segment 29 in the most significant digit in the figure indicates that the current display is in operation and the remaining operation time.
The figure shows 31 minutes.

That is, even if the input amount reaches the set amount, the input amount is displayed for 5 seconds. This means that if the remaining operating time is displayed as soon as the input amount reaches the set amount, it will be difficult for the user to recognize whether or not he or she has actually inserted the set amount, causing anxiety. It is something that does.

When the input amount reaches the set amount, fully automatic operation is started. In fully automatic operation, first, a signal is output from output terminal D to operate the water supply valve drive circuit 23 to supply water. When the specified water level is reached, turn on the water level switch 19.
When a signal is received from , the water supply is stopped, and signals are output alternately from output terminals A and B, and the left and right drive circuits 21 and 20 are activated alternately to rotate the rotor blades alternately left and right, thereby completing the washing process. Do the following.

During the first water supply for washing here, even after the start of operation, if an additional coin is inserted, the counter "5 SEC COUNTER" is set to "5". (Refer to the program "COIN" in FIG. 1) As a result, even if the remaining operating time for water supply is being displayed, the display device 5 switches to displaying the input amount for 5 seconds. This displayed amount is the cumulative amount of the amounts invested so far. This is to make the addition of coins recognized when the device has an additional coin specification, such as one that can change washing with water to washing with hot water by inserting an additional coin.

When the washing process is finished, a signal is output from the output terminal C to operate the drive circuit 22 to open the drain valve and drain the water. After draining, a rinsing process is performed multiple times, similar to washing. When the rinsing process is finished, a signal is sent from terminals A and C, which opens the drain valve and activates the clutch, transmitting the clockwise rotation of the motor not only to the rotary blades but also to the washing and dehydrating tank, which runs the dehydrating tank at high speed. Rotate to the right to dehydrate.

During such fully automatic operation, the process display device 6 flashes an LED corresponding to the process being operated.
In addition, during the multiple rinsing steps, the display device 7 that displays the time to add the finishing agent is blinked from the time water is supplied before the final rinsing step until the remaining time of the final rinsing step reaches 1 minute. Notify them that it is time to introduce the product.

Furthermore, when the tank cleaning switch 31 is closed within 10 seconds after the first water supply starts, the water supply valve and the drain valve are opened, and the clockwise rotation driving circuit 20 of the motor is activated to rotate the washing and dewatering tank. This causes the water in the washing and dewatering tank to scatter, washing away dirt and bacteria that have adhered to the inside of the tank. This operation continues for 20 seconds, and after 20 seconds, the water supply valve is first closed and the operation of the clockwise rotation drive circuit 20 is stopped, and 10 seconds later, the drain valve is closed. During these operations, for a total of 30 seconds, the display device 5 displays the outline of the last three digits as one segment 30, as shown in FIG.
This unlit segment 30 moves every 0.1 seconds (changes from A to B in the figure) to indicate that a special operation is in progress. In this case, one segment 2 of the most significant digit
Illumination of 9 indicates that the vehicle is in operation, similar to when displaying the remaining driving time.

(F) Effects of the Invention According to the present invention, one display device 5 displays the inserted amount while coins are being inserted and the remaining driving time while driving, so that the number of display devices is reduced to a minimum. It can often be done at low cost. In addition, even if the input amount reaches the set amount, the display does not immediately change to the remaining operation time display, but the input amount is displayed for a predetermined time, so the user can be sure of the total amount input and be worried. It is something that you never feel.

[Brief explanation of the drawing]

The drawings show a coin-operated washing machine according to the present invention, in which Fig. 1 is a front view, Fig. 2 is a block circuit diagram of the control section, Fig. 3 is a flowchart, and Figs. 4 to 6 show different states of the display device. FIG. 5...Display device.

Claims (1)

[Claims] 1. When the amount of coins inserted reaches a set amount, in a device that operates a program consisting of a series of steps such as water supply, washing, and drainage, the amount of coins input is A coin-operated washing machine comprising a display device that displays the amount of money and, after the predetermined time has elapsed, displays the remaining operating time of the program.