JPH10248787A - Dish washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need of a selection operation in the same course and to facilitate the selection operation for a high-order course by storing and displaying the course executed at the last time when power is supplied and performing reset to an initial course when prescribed time elapses as it is. SOLUTION: In the case of executing one of operation courses, a controller stores the executed operation course in a storage device. Then, when the power is supplied next time, the stored operation course is displayed on an operation panel 26. The figure (a) displays that the operation course executed at the last time is a 'careful' operation course with finishing agent feeding reporting. When a 'start' switch 30 is operated from the sate, the displayed 'careful' operation course with the finishing agent feeding reporting is executed. On the contrary, when the prescribed time elapses without the operation of the 'start' switch 30, a 'course selection' switch 29 or a 'drying time' switch 31, the reset to the initial 'standard' operation course is performed and display indicated in the figure (b) is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a dishwasher capable of selecting an operation course.

[0002]

2. Description of the Related Art Conventionally, a dishwasher has a plurality of operation courses for washing, rinsing, drying and the like, and a desired operation course can be selected and executed from the plurality of operation courses. Things are offered. In this case, generally, each time the power switch is operated, an initially set driving course (for example, a standard course) is displayed on the operation panel, and each time the course selection switch is operated from this state, the driving course is switched. The display is sequentially switched.

In contrast, when the power switch is operated, the previously executed driving course is displayed on the operation panel. From this state, the driving course is sequentially displayed each time the course selecting switch is operated as described above. Some are designed to switch.

[0004]

Among the above-mentioned conventional ones, the former one, in which the initially set driving course is displayed each time, selects and executes another driving course the previous time, and continues to execute that driving course. If you want to select and execute, you must operate the course selection switch the required number of times,
It was troublesome.

[0005] In the latter display of the previously executed driving course, when the same driving course is executed next time, it is convenient without the trouble of the above-mentioned operation. In particular, when it is desired to select and execute a driving course having a higher selection order than the previously executed driving course, the course selection switch must be operated many times until the driving course is reached, which is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and accordingly, it is an object of the present invention to make it easier and more convenient to perform a course selection operation when executing a previously executed driving course. An object of the present invention is to provide a dishwasher capable of easily performing an operation of selecting a course even when an operation course having a higher selection order than a driving course is selected and executed.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a dishwasher according to the present invention first comprises a plurality of operation courses for washing, rinsing, drying and the like. And a start switch for starting the selected driving course, and the like. Is operated, the driving course executed last time is displayed, and in this state, when a predetermined time elapses without operation of each switch, the driving course is reset to the initially set driving course.

[0008] According to this, when the driving course executed last time is executed, the start switch may be operated without operating the course selection switch after operating the power switch, and when the other driving course is executed. After the power switch is operated, the course selection switch may be operated after a predetermined time has elapsed, and then the start switch may be operated.

Second, the dishwasher of the present invention has a plurality of operation courses for washing, rinsing, drying, etc., and selects a power switch for turning on a power supply and an operation course. Course selection switch for
And a start switch for starting the selected driving course, storing the previously executed driving course, displaying the previously executed driving course when the power switch is operated next time, and selecting the course in this state. When the switch is operated, the operation course is reset to the initial setting operation course.

[0010] According to this, when the previously executed driving course is executed, it is sufficient to operate the start switch without operating the course selecting switch after operating the power switch, and to execute another driving course. In this case, it is only necessary to operate the course selection switch and then operate the start switch.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 2 shows an appearance of a dishwasher, which has a door 2 on a front portion of a main body 1 of the dishwasher.

As shown in FIG. 3, an inner box 3 is disposed inside the main body 1 of the washing machine to form a washing room 4.
Inside, a tableware basket 5 and an upper fountain arm 6 are arranged at the upper part, and a lower tableware basket 7, a lower fountain arm 8 and a heater 9 are arranged at the lower part. In this case, the tableware baskets 5 and 7 can be taken in and out of the opening of the front of the washing room 4 with the door 2 opened along the rails 10 and 11 provided on the inner side surface of the washing room 4 respectively. I have.

A water reservoir 12 is provided at the bottom, which is the deepest portion of the bottom of the cleaning chamber 4, so as to be deeper outside and below the cleaning chamber 4. A cleaning pump 13 and a drainage pump 14 are provided in the outer lower part. Among them, the cleaning pump 13 sucks the cleaning water in the cleaning chamber 4 from the water storage unit 12 through the connection unit 15 and pressure-feeds the cleaning water to both the fountain arms 6, 8 through the water supply unit 13a and the water supply pipe 13b. The two fountain arms 6 and 8 are configured to spray the washing water to the upper tableware basket 5 and the lower tableware basket 7 from the positions directly below.

On the other hand, the drainage pump 14 is
The washing water inside is also sucked from the water storage unit 12 through the connection pipe 16 and discharged out of the machine through the drain hose 17. In this embodiment, the cleaning pump 1 is used.
The pump 3 and the drain pump 14 are driven by a common motor 18, and the forward rotation of the motor 18 activates the cleaning pump 13 and the reverse rotation activates the drain pump 14.

On the other hand, a water supply valve 19 is provided at the back of the cleaning chamber 4, and a water supply hose 20 is connected to the water supply valve 19 to supply water into the cleaning chamber 4. Also, a blower 21 and a blow duct 22 are provided at the back of the washing room 4, and an intake duct 23 and an exhaust duct 24 are provided at the back side of the upper surface of the wash room 4. Thus, air outside the machine is sucked in through the air supply duct 23, supplied to the washing room 4 through the air duct 22, and discharged from the washing room 4 through the exhaust duct 24.

FIG. 4 shows a door lock lever 25 and an operation panel 26 provided at the upper part of the front part of the door 2.
Of these, the door lock lever 25 is for locking the closed door 2, and the illustrated position is the lock position,
The lock is released by rotating to the left from this position.

The operation panel 26 has an "on" switch 2 as a power switch for turning on the power.
7, an "off" switch 28 for shutting off the power, a "course selection" switch 2 for selecting an operation course
9. A "start / pause" switch 30, which is a start switch for starting the selected driving course and also a pause switch for temporarily stopping the started driving course, and a "drying time" for selecting a drying time A switch 31 is provided, and has LEDs 32 for displaying power-on, LEDs 33 to 36 for displaying a selected driving course, and LEDs 37 and 38 for displaying a selected drying time as LEDs for display.

Each of the switches 27 to 31 is a key switch and is depressed.
In addition, the courses of the operation of the dishwasher of the present embodiment basically include a “standard” operation course, a “careful” operation course, a “pre-washing” operation course, and a “drying only” operation course. , The “standard” driving course and the “elaborate” driving course, each of which has a finishing agent (in this case,
Finishing agent having a function of notifying the timing of feeding of a drying finishing agent comprising a surfactant which reduces the surface tension of water and eliminates the generation of water droplets on the surface of the tableware to effectively dry the tableware. There is a "finishing agent" operation course, which is an operation course with input notification. "20 minutes" and "6"
0 minutes ".

FIG. 5 shows the contents of execution of each of the above driving courses. As is clear from FIG. 5, the steps performed by the dishwasher of this embodiment include “pre-washing”,
There is a process of "washing", "rinsing", and "drying",
"Rinse" is further divided into "1st rinse", "2nd rinse",
The process is subdivided into “third rinse” and “finish rinse”. The “pre-washing” process includes a “water supply” operation of opening the water supply valve 19 to supply water into the cleaning chamber 4, a “pre-washing” operation of operating the cleaning pump 13 to spray cleaning water,
A "draining" operation for operating the drainage pump 14 to discharge the washing water is combined as shown in the figure, and is to roughly remove the dirt from the dishes.

The "washing" step includes the same "water supply" operation as described above, the "washing" operation similar to the "pre-washing" operation (partially involving the heating of the washing water by causing the heater 9 to generate heat), and the same as described above. The "draining" operation is combined as shown in the figure, and in conjunction with the effect of the detergent added in advance, dirt on tableware is fully removed.

The "first rinsing" step and the "second rinsing step" include a "water supply" operation similar to the above, a "rinse" operation similar to the "pre-washing" operation (without the heating of the washing water), and the same as described above. The "draining" operation is combined as shown in the figure. The "third rinsing" step and the "finish rinsing" step are similar to the "water supply" operation and the "pre-washing" operation described above. Accompanied) is a combination of the “rinse” operation and the “draining” operation as described above,
In each case, the detergent attached to the tableware is washed away.

In the “drying” step, the heater 9 is intermittently heated to heat the air in the cleaning chamber 4, the blower 21 is operated to introduce air outside the cleaning chamber 4 into the cleaning chamber 4, and the cleaning is performed. The “drying” operation of discharging the air in the chamber 4 to the outside of the machine and the “blowing” operation of introducing the outside air and only discharging the air in the washing chamber 4 are combined as shown in the drawing. It is for drying dishes.

Thus, the "standard" operation course includes a "washing" step, a "first rinsing" step, a "second rinsing" step, a "finishing rinsing" step, and a "drying" step. In the “finishing agent” operating course (the “standard” operating course with a finish agent input notification) for the “standard” operating course, the operation is temporarily stopped immediately before the “finishing rinse” step. A "finish agent notification" operation for notifying the timing of the supply of the finish agent by continuously operating a buzzer described later is performed.

[0024] Further, the "careful" driving course is obtained by adding a "third rinsing" step to the execution contents of the above-mentioned "standard" driving course. The “in-depth” operation course with finishing agent input notification) additionally performs the “finishing agent notification” operation similar to the above.

The "pre-washing" operation course executes only the "pre-washing" step, and the "drying only" operation course includes a plurality of "draining operations" and " And a "drying" step. In each of the courses, at the end of the driving, a buzzer to be described later is operated intermittently to perform an “end notification” operation for notifying the end of the driving.

FIG. 6 shows a control device 39 which is a control means for controlling the overall operation of the above-mentioned dishwasher. The control device 39 is composed of, for example, a microcomputer and is provided with a power supply (not shown) from the power supply. The necessary power is turned on via the switch 27. The controller 39 includes the “course selection” switch 2
9. Switch signals are input from a "start / pause" switch 30 and a "drying time" switch 31, respectively. In addition, although not shown in detail, the temperature and air of the cleaning water in the cleaning chamber 4 Temperature sensor 40 comprising, for example, a thermistor provided to detect the temperature of
, And a water level detection signal is further input from a water level sensor 41 provided to detect the water level of the cleaning water in the cleaning chamber 4.

Based on these inputs and the control program stored in advance, the control device 39
A display device 42 including the LEDs 33 to 38 for display.
Then, a drive control signal is supplied to a drive circuit 44 for driving the buzzer 43, the water supply valve 19, the motor 18, the heater 9, and the blower 21 which are notification means.
The control device 39, the drive circuit 44, and the buzzer 43
For example, it is provided on the back of the operation panel 26 of the door 2.

Next, the operation of the above configuration will be described. First, FIG. 7A shows the state of the operation panel 26 only when the power is turned on (by simply operating the "ON" switch 27). The LED 32 for indicating the power-on is lit, and the initial setting state is shown. Are displayed, the LED 34 indicating the selection of the "standard" driving course is illuminated, and the LED 37 indicating the selection of the drying time of "20 minutes" is illuminated.

From this state, a "course selection" switch 29
Is operated, the operation panel 26 changes as shown in (b) of the figure, and when the “standard” operation course with the finish agent supply notification is selected, the LED 33 for displaying the selection of the “finishing agent” operation course is displayed. Light emission is added.

When the "course selection" switch 29 is operated from this state, the operation panel 26 changes as shown in FIG. 9C, and the "elaborate" driving course is selected. Instead of the LED 34, an LED 35 indicating the selection of the “careful” driving course is illuminated.

Further, when the "course selection" switch 29 is operated in this state, the operation panel 26 changes as shown in FIG. In addition, the light emission of the LED 33 indicating the selection of the “finishing agent” operation course is added.

When the "course selection" switch 29 is operated in this state, the operation panel 26 changes to the state shown in FIG. Instead of the LEDs 33 and 35, the LED 36 for indicating the selection of the "pre-wash" driving course
Flashes, and in this case, L indicating the selection of the drying time is displayed.
The EDs 37 and 38 are both extinguished.

Further, from the state, "Course selection"
When the switch 29 is operated, the operation panel 26 changes as shown in (f) of the figure, and when the “drying only” operation course is selected, all the LEDs 33 to 36 indicating the selection of the operation course are turned off. , Only the LED 37 indicating the selection of the drying time of “20 minutes” emits light.

Subsequently, from the state, "Course selection"
When the switch 29 is operated, the operation panel 26 returns to the state shown in FIG. 9A (a state in which the “standard” driving course is selected). In each state, when the "drying time" switch 31 is operated, the drying time is set to "60 minutes".
The LED 38 that indicates the selection of the drying time of “minutes” emits light,
Further, if the "drying time" switch 31 is operated from that state, the drying time is selected as "20 minutes", and the LED 37 for indicating the selection of the drying time of "20 minutes" is replaced with the LED 38 described above. Emits light. Further, in each state, if the "start / pause" switch 30 is operated, each driving course is executed.

When any one of the driving courses is executed, the control device 39 stores the executed driving course in a storage device as storage means. Next, when the power is turned on (the “ON” switch 27 is operated) next time, the stored driving course is displayed on the operation panel 26. FIG. 1A shows an example of this case. In this case, since the previously executed driving course was the “careful” driving course with the finish agent supply notification, the operation panel 26 shown in FIG. The display is the same as in d).

In this state, if the "start / pause" switch 30 is operated, the displayed "deep care" driving course with finishing agent input notification is executed. On the contrary,
When the "course selection" switch 29 is operated, in this case, the next "pre-wash" operation course (see FIG. 7 (e)) is displayed on the operation panel 26. Furthermore, "Course selection"
By operating the switch 29, every time the switch 29 is operated, the operation panel 26 displays a “dry only” operation course (see (f) of FIG. 7), a “standard” operation course (see (a) of FIG. 7), and a finish. The "standard" operation course with the agent supply notification (see FIG. 7 (b)) and the "conservative" operation course (see FIG. 7 (c)) are displayed in order, and the "reservation" operation course with the finish agent supply notification. (See (d) of FIG. 7).

When the "drying time" switch 31 is operated, the drying time of "60 minutes" and the drying time of "20 minutes" are alternately displayed on the operation panel 26 every time the operation is performed. When the "start / pause" switch 30 is operated in each state, each driving course is executed.

On the other hand, if a predetermined time (for example, 30 seconds) elapses without operating the "start / pause" switch 30, the "course selection" switch 29, and the "drying time" switch 31, the initial state is started. The set driving course (in this case, the “standard” driving course) is reset, and the display shown in FIG. 1B on the operation panel 26 is the same as FIG. 7A. Further, when the operation course is reset to the initially set driving course, the buzzer 43 is operated at the same time to notify the user.

Then, from the state where the operation course is reset to the initially set operation course, the operation can be executed as it is by the same operation as described above or by selecting another operation course.

As described above, according to the present configuration, the previously executed driving course is stored, and the next time the power switch is operated, the previously executed driving course is displayed. When a predetermined time has elapsed, the driving course is reset to the initially set driving course.

Thus, when the previously executed driving course is executed, the "start / pause" switch 30 may be operated as it is, and the "course selection" switch 2
Since there is no need to operate each time, the operation can be performed without any trouble.

When executing another driving course,
After a predetermined time has elapsed, the "course selection" switch 29 may be operated, and the "start / pause" switch 30 may be operated. In this case, the operation course is reset to the initially set operation course. Since the operation is performed from the state, the operation course having a higher selection order than the operation course executed last time, for example, the “standard” operation course with the finishing agent injection notification or the “careful” operation course is also selected and executed. The number of operations of the "select" switch 29 can be reduced, and the course selection operation can be facilitated.

In addition, in the case of the above-mentioned configuration, when the operation course is reset to the initially set operation course after a predetermined time has elapsed without operating any switch, the buzzer 4 serving as an alarm means is provided.
3 to notify the user, whereby the user can be alerted.

FIG. 8 shows a second embodiment of the present invention. Only parts different from the first embodiment will be described. In this case, the control device 39 operates the previously executed (stored) operation course (in the illustrated example, the “close-minded” operation course with the finish agent supply notification) based on the power-on (operation of the “on” switch 27). Instead of waiting for a predetermined time to elapse from the state (a) displayed on the panel 26, when the "course selection" switch 29 is operated,
As shown in (b), the driving course is reset to the initially set driving course (also in this case, the “standard” driving course).

According to this embodiment, when the previously executed driving course is executed, it is the same as in the first embodiment, that is, the "start / pause" switch 30 can be operated as it is, and when another driving course is executed. "Course selection"
By operating the switch 29, the initially set driving course is displayed, and then the "start / pause" switch 3
It is sufficient to operate 0. In the case of another driving course, the user further operates the "course selection" switch 29 to display a desired driving course, and then displays "Start /
The "pause" switch 30 may be operated. In this case as well, selecting another driving course is an operation from a state in which the driving course is reset to the initial setting driving course, and even when selecting and executing a driving course having a higher selection order than the previously executed driving course. , "Course selection" switch 29
Since the number of times of operation can be reduced, the operation of selecting a course can be facilitated.

FIG. 9 shows a third embodiment of the present invention.
This also describes only the parts different from the first embodiment. In this case, if the user has selected the drying time (in this case, “60 minutes”) using the “drying time” switch 31 in the previously executed driving course as shown in FIG. When the operation course is reset to the initially set operation course, the drying time is not reset as shown in FIG.

In particular, a user who wants to sufficiently dry the tableware always performs a long-time drying operation. In such a case, the user does not reset the drying time as described above without resetting the drying time. In such a case, it is convenient and it is not necessary to operate the "drying time" switch 31 every time, so that the usability can be improved.

FIG. 10 shows a fourth embodiment of the present invention, and only parts different from the first embodiment will be described. In this case, once the operation course with the finishing agent input notification is executed, the operating course with the finishing agent input notification is displayed every time the power switch is operated after the next time. Specifically, for example, once the “standard” operation course with the finish agent input notification is executed, the “standard” operation with the finish agent input notification is performed as shown in FIG. The course will be displayed, and even if you select and run another driving course after that,
Further, when the power switch is operated thereafter, the "standard" operation course with the finish agent supply notification is displayed.

In particular, the user who selects and executes the operation course with the notification of finishing agent supply often selects and executes the operation course with the notification of finishing agent addition. In such a case, as described above, in the case where the operation course with the finishing agent supply notification is displayed first each time, only by operating the “start / pause” switch 30, the operation course with the finishing agent supply notification is displayed. Can be executed, and it is not necessary to operate the course selection switch, and the usability can be improved.

In this case, when the "course selection" switch 29 is further operated each time, the selection order is also changed from the above-mentioned "standard" operation course with the finish agent supply notification to the finish agent supply notification shown in FIG. A “careful” driving course, a “standard” driving course shown in (c), a “careful” driving course shown in (d), a “prewash” driving course shown in (e), and (f)
In the order of the "drying only" operation course shown in the above, the priority is given to the operation course with the finish agent input notification, which makes it easier for the user to select and execute the operation course with the finish agent input notification. Can be further improved.

Further, in this case, if the operation course executed once before is the “careful” operation course with the finish agent supply notification, the operation course displayed at the next and subsequent power switch operations is the finish course shown in FIG. This is a “careful” driving course with the agent injection notification. From this state, the “course selection” switch 2
The operation courses displayed each time the user operates No. 9 are the “standard” operation course with the finish agent supply notification shown in (a), the “standard” operation course shown in (c), and the “thorough” operation course shown in (d). , (E) "pre-wash" driving course, and (f)
The order of the “dry only” operation course shown in FIG.

In addition, in this case, the function of resetting to the initially set driving course of the first and second embodiments may not be provided, and furthermore, the previously executed driving course is stored. Therefore, the function of displaying the previously executed driving course when the power switch is operated next time may not be provided.

FIG. 11 shows a fifth embodiment of the present invention, and only parts different from the first embodiment will be described. In this case, the driving course executed last time is stored as described above, and the next time the power switch is operated,
In the display of the previously executed driving course, when the "pre-washing" driving course is executed as shown in (a), the next time the power switch is operated, it is not displayed. As shown, the initially set driving course (in this case, the “standard” driving course) is displayed.

Unlike the above-described selection of the drying time and the selection of the operation course with the finish agent notification, when the pre-wash operation course is selected and executed, it is unlikely that the pre-wash operation course will be executed again thereafter. Performs another course following it. In such a case, in the above case, the pre-washing operation course is not displayed at the next power switch operation stage,
Since the default operation course is displayed, it is possible to avoid accidentally executing the pre-wash operation course, and the detergent manually input into the washing chamber for the next other operation course is discharged. Can be avoided.

In this case, when the power switch is operated next time after the execution of the "pre-washing" operation course, the initially set operation course is not displayed, but the other than the pre-washing operation course before the execution of the pre-washing operation course. Of the driving courses executed last (for example, a “standard” driving course, a “standard” driving course with a finishing agent input notification, a “careful” driving course, a “careful” driving course with a finishing agent feeding notification, Even if the "drying only" operation course is displayed, the same effect as described above can be obtained. Also, in these cases,
The function of resetting to the initially set driving course of the first embodiment and the second embodiment may not be provided.

In addition, the function of resetting the operation course to the initial setting in the first and second embodiments is, for example, performed by operating the “course selection” switch 29 while the power is turned off while turning off the power. By performing a special operation such as operating the "ON" switch 27 (so-called hidden switch operation), it may be possible to cancel the operation. This can be convenient for a user who does not want the reset function. In this case, returning to the state before the cancellation is performed by the same operation.

It should be noted that the display at the time of operating the power switch may be a sound such as a voice in addition to the above-mentioned LEDs 33 to 38. In addition to the buzzer 43, a notification means other than the buzzer 43 is used as a notification means for notifying when a predetermined time has elapsed without operation of each switch after the power switch operation of the first embodiment and the operation course is reset to the initial setting operation course. Or characters.

Further, as a washing method of the tableware, a different method such as immersing the tableware in water and washing with a water flow may be used instead of the above-mentioned fountain method. In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

[0059]

The present invention is as described above.
The following effects are obtained. According to the dishwasher of claim 1,
When the previously executed driving course is executed, it is only necessary to operate the start switch, and it is not necessary to operate the course selecting switch one by one. Further, when executing another driving course, it is sufficient to wait for a predetermined time to elapse and then operate the course selection switch, and then operate the start switch. The operation is also an operation from a state where the driving course is reset to the initially set driving course, and the number of times of operation of the course selection switch can be reduced even when selecting and executing a driving course having a higher selection order than the previously executed driving course. This makes the operation easier as a whole.

According to the dishwasher of the second aspect, after the power switch is operated, when a predetermined time has elapsed without operation of each switch and the operation is reset to the initially set operation course,
The user can be alerted by the notification by the notification means.

According to the dishwasher of the third aspect, when executing the operation course executed last time, it is only necessary to operate the start switch, and it is not necessary to operate the course selection switch every time. To execute another driving course, the course selection switch may be operated once to operate the start switch, or the start switch may be operated the required number of times to operate the start switch. The required number of times of operation, the operation from the state reset to the initial setting of the driving course, also when selecting and executing a driving course higher in the selection order than the previously executed driving course, the course selection switch Can be reduced in number of times, and the operation can be generally simplified.

According to the dishwasher of the fourth aspect, the function of resetting to the initially set operation course can be canceled as necessary, and the convenience of a user who does not want the reset function can be achieved. . According to the dishwasher of claim 5, the usability can be improved according to the user's preference for the drying time.

According to the dishwasher of the sixth aspect, the usability can be improved in response to the user's request for the manual feeding of the finishing agent. According to the dishwasher according to the seventh and eighth aspects, it is possible to prevent the detergent that has been manually put into the washing chamber from being wastefully discharged during the operation after the prewashing operation course is executed.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a change in an operation panel according to a first embodiment of the present invention.

FIG. 2 is an external perspective view of the entire dishwasher.

FIG. 3 is a vertical sectional side view of the entire dishwasher.

FIG. 4 is a perspective view of an operation panel portion of a door.

FIG. 5 is a time chart of all driving courses.

FIG. 6 is a schematic electrical configuration diagram.

FIG. 7 is a diagram showing a change in an operation panel when a “course selection” switch is sequentially operated.

FIG. 8 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 9 is a view corresponding to FIG. 1, showing a third embodiment of the present invention.

FIG. 10 is a view corresponding to FIG. 7, showing a fourth embodiment of the present invention;

FIG. 11 is a view corresponding to FIG. 1, showing a fifth embodiment of the present invention.

[Explanation of symbols]

26 is an operation panel, 27 is a power on switch (power switch), 29 is a course selection switch, 30 is a start / pause switch (start switch), 31 is a drying time switch, and 33 to 36 is an LED for displaying a driving course, and 37 and 38 are LEs for displaying a drying time.
D and 39 are control devices, and 43 is a buzzer (notification means).

Claims (8)

[Claims] 1. A washing machine comprising a plurality of operation courses for washing, rinsing, drying, etc., a power switch for turning on a power, a course selection switch for selecting an operation course, and a selected operation. It has a start switch etc. for starting the course, stores the previously executed driving course, and displays the previously executed driving course when the power switch is operated next time, and there is no operation of each switch in this state A dishwasher characterized in that when a predetermined time has elapsed, the operation course is reset to the initially set operation course. 2. The system according to claim 1, wherein when the power switch is reset and the operation course is reset to an initially set operation course after a predetermined time has elapsed without operating each switch, the notification is made by the notification means. The dishwasher according to 1. 3. A power switch for turning on a power, a course selection switch for selecting an operation course, and a selected operation for an apparatus having a plurality of operation courses for performing washing, rinsing, drying, and the like. It has a start switch etc. for starting the course, stores the previously executed driving course, displays the previously executed driving course when the power switch is operated next time, and operates the course selection switch in this state A dishwasher characterized by resetting to an initial operation course. 4. The dishwasher according to claim 1, wherein the function of resetting the operation course to the initially set operation course can be canceled. 5. The drying time is selectable, and when resetting to the initially set operation course, the drying time is not reset but remains the same as the previously selected time. Dishwasher. 6. When washing, rinsing, drying, and the like are performed, in addition to at least a standard operation course, an operation course with a finish agent input notification for notifying a finish agent input timing can be selected. A dishwasher characterized in that once the operation course with the agent injection notification is executed, the operation course with the finish agent injection notification is displayed each time the power switch is operated next time or later. 7. A pre-washing operation course for storing the previously executed operation course and for displaying the previously executed operation course when the power switch is operated next time, wherein the pre-washing operation course for roughly removing the dirt on the dishes is executed. A dishwasher characterized by displaying an initially set driving course when the power switch is operated next time. 8. A pre-washing operation course for storing the previously executed operation course and for displaying the previously executed operation course when the power switch is operated next time, wherein the pre-washing operation course for roughly removing the dirt on the dishes is executed. A dishwasher characterized by displaying the last operation course among operation courses other than the prewash operation course before executing the prewash operation course at the time of operating the power switch next time.