JPH0229360B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a washing machine that selects a course and process using a selection switch that includes a switch that sets a course such as standard or saving, and a switch that sets a process to be executed from washing to spin-drying. This is related to the machine's program control device, and after the program has started running, there are selection switches that allow you to change the set program.
The switch that sets the process to be executed from the rinse and dehydration processes is prevented from changing the process, and each set process is always executed.
It prevents the process from being interrupted in the middle of each dehydration process and the washing function cannot be performed, and also prevents the washing function from being performed even after the program has started execution.For example, the standard course, This makes it possible to change courses such as a savings course using a switch, thereby improving usability.

Here, taking a fully automatic washing machine as an example,
Think about that program. In addition to the program that executes the entire process from washing to spin-drying, fully automatic washing machines require programs that execute partial processes such as washing only, washing to rinsing only, and rinsing only. It is necessary to have a process selection function to select. On the other hand, there is a need for a course selection function that determines the time of the selected course and the steps that make up the course, for example, a function for selecting from a plurality of courses such as the standard course, economical course, and powerful course. After both the process selection and course selection are determined, it becomes possible to select a program to be executed.

Now, if the above-mentioned process selection function is valid while the program is running, for example, it could be changed to only spin-drying while washing, and the original washing function would not be able to function. This has the inconvenience that the user has to judge each time as the program progresses.

On the other hand, even if you change to one of the remaining courses while running a specific course among the standard course, saving course, and powerful course, it will only supplement the original function and will not impair it. do not have.

The present invention prevents the program from being changed by the switch that sets the process while the program is being executed, and prevents only changes to the program from being input by the switch that sets the course for each of the standard and economical courses, for example. This makes it possible to automatically decide whether or not to use a program modification function while the program is running, thereby improving usability and safety.

Conventionally, the configuration has been such that, while the program is running, all or none of the inputs that enable the program to be changed are accepted.

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing the basic configuration of a program control device, where 1 is a selection switch;
It consists of a course selection switch 7 for setting courses such as standard and economy, and a process selection switch 6 for setting the process to be executed from washing to spin-drying.
The output of the stroke selection switch 6 of the selection switches 1 is input to the storage means 3 via the blocking means 2 and is stored therein. The output of the course selection switch 7 is directly input to the storage means 3 without going through the blocking means 2 and is stored therein. The storage means 3 is composed of, for example, a flip-flop, and the output of the storage means 3 is inputted to the control means 4. The control means 4 is the storage means 3
When the output matches a plurality of data predetermined in a storage section provided in the control means 4, a program including the content of the course and stroke selected by the output of the storage means 3 is executed. When execution of the program is started, the control means 4 controls the load section 5 consisting of a motor or the like to control the progress of the program and at the same time operates the blocking means 2. This blocking means 2 prevents input from the stroke selection switch 6 which is not input to the storage means 3 while the program is being executed. Further, the course selection switch 7 that is input even during operation is input to the storage means 3 and changes a part of the program executed by the control means 4 without being blocked by the blocking means 2.

FIG. 2 shows a specific electrical circuit diagram when the device of the present invention is applied to a washing machine, and at least the selection switch 1 selects the steps from washing to spin-drying, washing only, and washing to rinsing only. It consists of a stroke selection switch 6, a standard course selection switch 17 for selecting a standard course, an economical course selection switch 18 for selecting an economical course, and resistors 9, 10, and 11.

Now, when a stroke is selected by the stroke selection switch 6, the output of the stroke selection switch 6 is output to the AND gate 2 which is the blocking means 2.
The signal is input to a part 12 of the storage means 3, which is constituted by, for example, a shift register, via a. Therefore, each time the stroke selection switch 6 is selected, the output of the portion 12 changes, and the selected stroke corresponds to its output.
The output of the portion 12 is input to a central control unit 15 forming the control means 4 .

Further, the standard course selection switch 17 and the saving course selection switch 18 also have their outputs stored in the storage means 3.
is input. These course selection switches 17,
For example, flip-flops 13 and 14 correspond to 18, and store the selected states of course selection switches 17 and 18. flipflop 13,1
The output of No. 4 is input to the central control section 15.

The central control unit 15 determines that the predetermined settings have been completed using the selection switch 1, and stores a plurality of programs in the storage means 16, which is constructed of a flip-flop, for example.
The load unit 5 is controlled according to a program including the stroke and course selected by the selection switch 1. At this time, the central control unit 15 outputs an output to the blocking means 2 consisting of an AND gate 2a, and sets one input terminal of the AND gate 2a to LOW. As a result,
Regardless of the output of the stroke selection switch 6 of the selection switch 1, the input to the part 12 of the storage means 3 is always
The signal becomes LOW, and the output for selecting a stroke by the stroke selection switch 6 is prevented from being input to the storage means 3 during program execution.

On the other hand, since the outputs of the course selection switches 17 and 18 are inputted to the storage means 3 without being influenced by the blocking means 2, the outputs of the course selection switches 17 and 18 are inputted into the storage means 3, so that during program execution, Also, the steps constituting the process can be changed.

As described above, according to the present invention, after one program execution is started by the selection switch,
The system prevents the user from inputting a course selection switch that sets a course that wastes or impedes program execution, while allowing the user to input a course selection switch that sets a course that does not interfere with program execution. This makes it possible to improve usability while preventing operational confusion.

[Brief explanation of drawings]

FIG. 1 is an electrical block diagram showing the basic configuration of a program control device for equipment in an embodiment of the present invention, and FIG. 2 is a diagram showing a specific example of the circuit. 1... Selection switch, 2... Preventing means, 3...
Storage means, 4... Control means, 5... Load section, 6...
...Itinerary selection switch, 7...Course selection switch.

Claims (1)

[Claims] 1. A selection switch consisting of a course selection switch for setting a course such as standard, economy, etc. and a process selection switch for setting a process to be executed from among the processes from washing to spin-drying, and a storage means for inputting the output of this selection switch. and a control means that operates according to the output of the storage means to control the load, and a blocking means that prevents the output of the stroke selection switch among the selection switches from being input to the storage means, A program control device for a washing machine, wherein the blocking means prevents the output of the stroke selection switch from being input to the storage means after starting execution of the set program.