JPS6077793A - Operation of washer - 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 [Field of Application of the Invention] The present invention relates to a method for operating a washing machine, and relates to a method for dissolving detergent during the stirring period included in the washing process of the washing machine.

The present invention relates to a method of operating a washing machine that involves a drive system for rotary blades during the main agitation period during which fabrics are brought under water and washed.

[Background of the invention]

A washing machine is designed to perform washing according to a preset timer.

In the washing operation, the rotary blades at the bottom of the washing tub are driven by a motor to rotate at low speed through a deceleration mechanism, etc. to create a water stream, which agitates the laundry and applies mechanical force to the fabric to remove dirt. It is designed to be acted upon. The detergency is achieved by the separation of dirt by the above-mentioned mechanical force and the chemical P action by the detergent K, and the detergency of only one is insufficient.

However, the conventional rotor blade has a high speed (400 rp!'I+
) for a long time (23 seconds) in one direction, then paused for a certain period of time (3 seconds), then reversed and created a stream of water that rotated for the same amount of time.

With this control method, a strong vortex is created, so the laundry is
Since the detergent is drawn into a vortex by the water flow, the detergent dissolves quickly in the early stages of washing, and the laundry is immersed in water, allowing washing to be done in a short time.

On the other hand, as a new cleaning method, the rotor blades are moved at low speed (19° r p
rT'L), rotates in one direction for a short period of time (0.8 seconds), then pauses for a certain period of time (0.5 seconds), then reverses and rotates for the same amount of time, no vortex is formed and no vortices are formed. The cleaning method is similar to washing or massaging, so if you wash the laundry with full load, the detergent will not dissolve quickly.
There is a problem in that it takes time for the laundry to rise to the surface of the water and be immersed in the water, making it impossible to use the washing time to effectively remove dirt.

This new short-cycle reversal washing method has the advantage that the laundry does not get tangled with each other, causing less damage to the fabric and less uneven washing, but as mentioned above, there are problems that need to be resolved.

That is, if the dissolution of the detergent is delayed, there will be no cleaning power due to chemical action, and efficient cleaning will not be possible using only mechanical action. Well, if the laundry is above the surface of the water, the cleaning action won't reach it unless it's submerged within the specified time, so efficient cleaning was impossible in this case as well.

In addition, in conventional display devices, there are devices that display the switching of water flow, and devices that indicate the execution of each process of washing, rinsing, and spin-drying, and those that indicate that the rinsing process is a water flow. Although it had a device to display whether it was water tint or not, it did not have a display device to indicate the execution of a time cycle for multiple types of TIN corresponding to the drive method of the rotor blade in the washing process.

Further, when a mechanical timer is used, the time limit and the overall time cycle for cleaning are set by providing irregularities on a 360-degree rotating cam plate.

In this case, the washing time is set and operated by adjusting the knob, so the rotation time and rest time of the rotor blade within the washing time are selected to be constant and standard values, and the optimum time is selected depending on the purpose. It was impossible to clean the machine with a vacuum cleaner, and the machine operated in reverse from start to finish at regular intervals.

[Purpose of the invention]

The present invention was developed in view of the above situation, and
The purpose is to provide a method for operating a washing machine that can improve washing efficiency and shorten washing time.

[Summary of the invention]

A method for operating a washing machine according to the present invention is a washing machine having a rotary blade driven by a motor, a water tank for storing washing water, and a timer for controlling the motor on and off during the washing cycle. During the main stirring period included in the washing process, the rotor blades rotate forward, stop, reverse, and stop.

Positive in a time cycle that repeats forward rotation and sequential rotation.

The reversal period and each stop period are changed to operate.

The details are as follows.

That is, the washing machine according to the present invention is provided with a rotary blade driven by a motor, a water tank for storing washing water, and a timer for turning the motor ON-OFF.
Normal rotation, stoppage, reverse rotation, and stoppage of the rotary blade during the main stirring period (of the stirring period, this refers to the stirring period during which detergent is dissolved, fabric is brought under the water surface, and washing is performed);
In the time cycle of forward rotation and sequential repetition, by changing the forward and reverse rotation periods and the stop period, the strength of the water flow is varied, thereby improving washing efficiency.

Therefore, when the main stirring period is divided into three, the middle period is a strong water flow (strong water flow), and the earlier and later periods are weaker water flows (standard water flow) than the above-mentioned strong water flow, which also improves the efficiency of the washing machine. It was designed to achieve this.

Furthermore, when the main stirring period of the washing process is changed, the middle period of strong water flow is also changed, and the ratio of the length of the stirring period to the middle execution period is kept constant.

Furthermore, we have installed a display device that corresponds to strong water flow and standard water flow.
In the first and second periods, the display device corresponding to the standard water flow operates, and in the middle period, the display device corresponding to the strong water flow operates.

[Embodiments of the invention]

Embodiments of the method of operating a washing machine according to the present invention will be described with reference to the drawings.

FIG. 1 is an opened cross-sectional view of a fully automatic washing machine used to implement the washing machine operating method according to each embodiment of the present invention, and FIG. 2 is an electric circuit diagram thereof.

In Fig. 1, 1 is the outer frame, 2 is the top force that covers the top surface of the outer frame 1 (-13 is a corner plate, fixed to the upper four corners of the outer frame 1, and the water receiving tank 4 is It is supported by hanging rods 5 at certain points.A vibration-proofing spring 6 is attached to the hanging rod 5 and is formed to absorb vibrations of the water receiving tank 4 during dewatering.

The 7-piece basket rotates at high speed during spin-drying to dehydrate laundry using centrifugal force.

8 is a motor, and the power of the motor 8 is the belt 9゜boo 1j
The signal is transmitted to the clutch deceleration unit 11 via the clutch deceleration unit 10 and decelerated, and the rotor blades 12 are driven to rotate at a low speed.

14 is a water injection hose, 15 is a water injection port for supplying water from a faucet into the water receiving tank 4, 16 is an electronic timer which will be explained in detail in FIG. 2 below, and a motor 8. The water supply valve 13 is designed to instruct and control the operation of electrical components.

The motor 8 rotates in both forward and reverse directions, and is capable of repeatedly driving the rotor blade 12 in forward and reverse directions.

In FIG. 2, 17 is a phase advancing capacitor for the motor 8, 18 is a drain valve, 19 is a power outlet, 20 is a power switch, 21 is a neon lamp, and 22 is a connector.

23 is a pressure switch, 24 is a safety switch, and 25 is an instruction control unit, which is an LSI element having a calculation function such as a microcomputer. 26 is a progress display section composed of a light emitting diode, 27 is a power supply circuit section, and AC (A, C)
This is the part that converts the current into direct current (DC) to create the power supply section of the electronic timer 16.

An oscillation circuit section 28 supplies a clock to the instruction control section 25 and an oscillation frequency to the buzzer 29.

30 is an input signal processing circuit, which transmits the signal to the instruction control unit 25 via an input signal path line 31;
Reference numeral 2 denotes an input switch section, which similarly transmits signals to the instruction control section 25 via a signal path line 31. Reference numeral 33 denotes an output signal path line that transmits signals from the instruction control section 25 to the progress display section 26 and the drive circuit 34.

The line 35 is connected to the water supply valve 13 via the connector 22.
The line 36 is connected to the forward rotation side of the motor 8, and the line 37 is connected to the forward rotation side of the motor 8.
is connected to the reverse rotation side, and line 38 is connected to the drain valve 18, respectively.

In the above configuration, when an operation instruction is input to the input tank isolating section 32, the instruction control section 25 determines the signal of the pressure switch 23, and when the water is not full, the output signal path line 33 is sent from the output circuit of the instruction control section 25. After that, the water is amplified and switched by the drive circuit 34, and then the water supply valve 1 is supplied from the line 35.
3 is issued, and water is supplied from the water inlet 15 via the water inlet hose 14.

When the water becomes full, the signal of the pressure switch 23 is switched, the water supply valve 13 is de-energized, and the stirring operation of the washing process begins.

FIG. 3 is a washing process diagram showing the washing process of the fully automatic washing machine shown in FIG. 1.

The agitation period is normally carried out in a short-cycle reversal cycle of clockwise rotation for 06 seconds, pause for 0.4 seconds, counterclockwise rotation for 0.6 seconds, and pause for 0.4 seconds. Mechanical force acts on an object.

In the above-mentioned washing method, the stirring time in the washing process can be up to about 12 minutes, but the time can be adjusted to be shorter depending on the degree of dirt.

However, since the present invention relates to the stirring period in the washing process, the following explanation will be limited to the washing process.

In the first embodiment described below, the main agitation period included in the washing process during the washing cycle is divided into three periods: early period, middle period, and late period, and the rotary blades rotate forward, stop, reverse, and stop. In addition to changing the forward and reverse periods in the time cycle that is repeated sequentially and their respective stop periods for each of the above-mentioned divided periods, the water flow created by the middle time cycle is The system is designed to operate as a water flow stronger than the water flow created by.

First, FIG. 4 is a flowchart showing the operation of the subroutine of the stirring process.

When the agitation process is activated, the washing time is set.

Next, it is checked whether the pressure switch 23 is ON or not, and if it is not ON, the water supply valve 13 is turned ON.

When the water accumulates and becomes full, the pressure switch 23 turns ON, so the answer is YES, the water supply valve 13 turns OFF, the processing moves to the reversal subroutine, the washing subroutine is exited, and the display and input switch are analyzed. The process returns to the original process.

FIG. 5 is a flowchart showing the operation of the inversion subroutine.

Without further ado, the mask of the subtraction timer for updating the washing time is released and the subtraction count is started. The subtracted number is the wash time set at the beginning of FIG.

Next, the illustrated time T is as follows.

T = (Washing time) - (Subtraction timer value) This indicates the execution time of washing, but until this value reaches the constant To, the rotor operating time tM is set as a constant 11, and the rest time is tS is set to a constant 12.

When T+>T≧TO, the rotor operating time tM is set to a constant 1.
3, the pause time tS is changed to a constant 14, and when T≧T1, tM=il again.

Let tS=t2. T1 above is the washing execution time.

In other words, the period of T (T) until To reaches T is the first period, and the period of To≦T (:T) is the middle period, T≧T1
This period is divided into three periods as the latter period.

Here, tl<T3. T2>z,, tl) 12°t 3
) Operation is performed under the relationship T4.

T3 is usually about 1.3 times tl, and T4 is about 0 times T2.
．． A value of 5 times is appropriate. 11 is 06 seconds, T2 is 0
4 seconds is the optimum value due to the cloth entanglement characteristics described later.
T3 is 0.8 seconds and T4 is 02 seconds.

Note that the values of t1 to t4 above all indicate when the frequency of the power supply is 50 Hz, and 601-r
When Z, the time limit is 1/1.2 times each.

The next process is a flow in which the rotor blade 12 is operated in short-period inversion according to the IM and tS set above.

As described above, the process indicated by the broken line frame 39 in FIG. 5 indicates control in which the reversal period changes with the washing execution time being To and T+ as boundaries.

The aforementioned period of tl = 0.6 seconds, t2 = 0.4 seconds, and L3
= 0.8 seconds and the period of t420.2 seconds, the time when the motor 8 is running is longer and the time when it is stopped is shorter in the latter case. It will be stronger.

Therefore, if tl=0.6 seconds and 1220.4 seconds are called a standard water flow, t3=0.8 seconds and t4=0.2 seconds are strong water flows.

However, in the above example, the main stirring period is divided into three periods: early, middle, and late.
It is divided into a plurality of periods such as a period, a second period, . In addition, conversely, the entire main stirring period is not divided into three periods as in this example, but is continuously divided into forward and reverse periods and their respective periods. It is also possible to operate the apparatus by changing the period of stoppage, that is, by continuously changing the above-mentioned tM and tS, and by increasing the water flow to a strength of 1 or less.

Next, a second embodiment will be explained using the flow shown in FIG.

That is, the dashed line frame 39A in FIG. 6 is a flow corresponding to the solid line frame 39 shown in FIG. 5 in the second embodiment, and the rest is the same.

Therefore, in this embodiment, in at least one of the periods between the early period and the middle period and between the middle period and the late period in the previous example, the forward period, the reverse period, and the period of their respective stops are set. , Vi is gradually increased and Vi is gradually decreased, thereby providing a section in which the time cycle changes continuously.

That is, in FIG. 6, after processing T≧To, 11
increases gradually, t2 gradually decreases, and finally, the rotor operating time tM becomes equal to tS and t4.

This is to change the pause time tS. tl and tS as K
Divide t2 and 14 into 2 equal parts, then divide 1/J (1,
The value of 1/2 is ΔB, respectively.

711t2, n= 11 ·-+ K1. m= 1
+...If we set 2 to +, then tM=11+nxΔt1, tM=t3-mxJtl, tS:t2-nxΔt2, or tB=t4+mXΔt2.

According to the processing flow shown in FIG. 6, t1→t3. t2
→The reversal period variation from t4 can be changed gradually. K1. 2 is normally set to switch within one minute. Moreover, in FIG. 6, it is 1-2.

By changing gradually in this way, it is possible to change the movement of the laundry smoothly, and the purpose can be better accomplished.

In other words, if the reversal cycle is changed rapidly, the laundry will become lump-like, making it difficult to remove and wash the laundry.

FIG. 7 is an explanatory diagram of the operation signals of the washing machine, in which the motor 8 is turned on.
, OFF signal is shown, and the relationship between tl and t2 in the embodiment described in FIG. 5 is shown in (a).

(B) shows the normal rotation signal, and (A) is the normal rotation signal, line 3 in Figure 2.
6 to the motor 8, and (b) is the reverse signal that causes the lie/
37, the signal is transmitted to the motor 8.

Also, 13. The relationship between t4 and t4 is shown in (c) and 2), in which forward and reverse signals are transmitted to the motor 8 in exactly the same way.

FIG. 8 is an explanatory diagram of the operating signals as well, with the horizontal axis representing the washing time and the vertical axis representing the operating and resting times of the rotor, which shows the relationship between tl and t2°13.14. This figure shows the actual %G example explained in FIG. tl = 0 from the start of washing until To
．． After running for 6 seconds and 12,204 seconds, the forward and reverse rotation times gradually become longer and the stop time becomes shorter in about 1 minute. Next 1
3-08 seconds, t 4. = After driving in 0.2 seconds,
Again, forward, reverse rotation time gradually decreased, stop time gradually increased, t 1
= 0.6 seconds, and t2220.4 seconds.

Next, the effects of each of the above embodiments will be explained with reference to FIGS. 9 to 13.

In other words, FIG. 9 is an explanatory diagram of the effect shown by plotting washing time on the horizontal axis and detergent concentration on the vertical axis (1111+).

Pour in the rated amount of laundry and add detergent, tM=
When operating at a cycle of ti, tS-t2, the dissolution of the detergent does not occur smoothly, and the dissolution curve gradually rises as shown by the two-dot chain line A. The solid line B shows the curve when operating at a cycle of tM = ta, ts = t4 without loading any laundry, and the concentration increases in a short time due to the sudden rise polymorphism. It is. The time required to reach the same detergent concentration α% is as follows for two-dot chain line A and solid line B.
Between T'' and T', in the curve shown by the two-dot chain line A, it is impossible to expect cleaning power due to chemical action from the start to T'' of the set washing time, and cleaning is performed only by mechanical force. It will be done.

Next, in each of the above embodiments, at the beginning of the barrier water flow, which is a washing method that changes the reversal period, tM2t1. tS
= t2, then tM = t3 + tS = t4, as shown by the dashed-dotted line C, the water flow becomes stronger even when the laundry is loaded at full capacity, so the detergent dissolves and reaches the concentration α in the time To. Therefore, the cleaning effect due to the chemical action of the detergent can be expected at an early stage. When detergent dissolution progresses, tM=t1
This returns to tS=t2.

FIG. 10 is a comparison diagram of washing performance.

In the figure, X indicates fabric damage, Y indicates fabric entanglement, and Z indicates cleaning ratio. Also, subscripts r, n, and m indicate the classification in the order of conventional water flow, barrier pull water flow, and strong water flow. Yes, and the subscript ■ is jM=t1. This shows data when a cycle is operated where tS=t2 is fixed.

The smaller the amount of cloth entanglement and cloth damage, the better, and the larger the cleaning ratio.

1M=t3. The strong water flow operated at ts = t4 is suitable for certain laundry items (thick stains, rough fabrics such as jeans, etc.) because all the data becomes large, but it is not strong enough for normal water flow. Too much.

Also, tM=t1. In the water flow of ts=12, fabric damage,
Although it is good for cloth tangles, the cleaning ratio is lowered and is insufficient.

Therefore, by combining these water flows, we run a washing cycle in which the first wash cycle is weak, then strong, and then weak at the end, that is, the so-called barrier pull water flow described above, and the time of strong water flow is reduced to 1/1/2 of the total washing cycle.
When the initial run-in period (weak water flow, standard water flow period) is set to 30 to 60 seconds, the well-balanced cleaning performance shown in FIG. 10 can be obtained.

As mentioned above, as shown in Figure 9.10, promoting the dissolution of the detergent with a strong water flow at the initial stage of the washing process, and then stirring with a standard water flow that does not tangle the fabric, will improve washing efficiency. This can be said to be a preferable method.

On the other hand, FIGS. 11 to 13 are explanatory diagrams for explaining the ability of the fabric to be pulled under the water surface.

In other words, in FIG. 11, the graphs for submerging relatively hydrophilic fabrics are curves S, SN, and the rated amount of fabrics containing P% of fabrics that have water-repellent properties and do not easily sink under the water surface are put into the basket 7. In this case, the graph showing the time until all the fabric sinks under the water surface is the curve S, s/. Moreover, if a barrier pull water flow is adopted, the graph will be a curve SII.

Curve SII+, which shows the case where agitation is performed with a strong water flow, has better fabric pull-in properties than curve S9, which shows the case where agitation is performed with a standard water flow, but as the above P% increases, , its effect tends to fade.

This is because when water-repellent fabrics 4-1a to 41d are placed over other fabrics 42 and water is supplied as shown in Fig. 12, the water-repellent fabric 41a on the upper part is hardly wetted and water is supplied. Complete and indulge, and
This is because depending on how the water-repellent fabric 41a overlaps other fabrics 42, air is trapped and the fabric 41a tends to float, as shown in FIG. This is also because, as shown in FIG. 13, the water-repellent fabric 412 is agitated by the strong water flow before it absorbs enough water, causing twisting in the portions below the water surface and creating air bubbles. .

On the other hand, when stirring is performed using a standard water flow,
It does not cause twisting under the water surface and does not cause air entrapment.

However, if you continue washing as is, the fabric will become tangled, leading to a decrease in performance.

In addition, Tonoma 1 has the disadvantage that there is a lot of water splashing, which makes the floor look dull.

As mentioned above, in general, a strong water flow can be expected to have the effect of drawing fabrics in, but when a large amount of water-repellent fabric is put in, there is no big difference in the drawing ability between strong water flow and standard water flow, but barrier pull Since the water flow gradually penetrates the fabric by providing a break-in section first, the time it takes to be submerged becomes TH (Figure 11), which is shorter than T 6 and TH. be.

Therefore, when considering the time required for the fabric to sink below the water surface, it can be said that during this period, it is preferable to perform agitation using a standard water flow that uses less electricity and causes less damage to the fabric.

As mentioned above, from the viewpoint of detergent dissolution, using strong water flow in the early stage of agitation and standard water flow in the latter stage improves washing efficiency, taking into account the ability to draw the fabric under the water surface. Considering this, the initial stage of agitation is a standard water flow, the fabric is drawn in during this period, the detergent is promoted to dissolve in a strong water flow during the next period, and then the original washing is performed using a standard water flow. By doing so, it is possible to obtain maximum washing efficiency.

A side effect of this method is that if the user selects the standard water flow and agitation is performed with a strong water flow from the beginning, the originally selected water flow will not be executed, resulting in differences in handling and actual operation. This may create a sense of harmony and cause complaints, but it is thought that this method will not cause such problems. Furthermore, when agitation is started with a strong water flow from a static IJ state, a strong water flow is formed in a steep motion, so the problem of water splashing is also improved with this method.

Next, a third embodiment will be explained using the flow shown in FIG.

That is, FIG. 14 shows a flow according to an embodiment in which the length of the middle period in the first embodiment is varied while maintaining a constant ratio with the total stirring period of the washing process. It's a thing.

In this embodiment, the stirring time in the washing process is set to 12 minutes, 6 minutes, and 3 minutes from the input filter isostatic part 32 in FIG.
This is set to one of the minutes and processed as shown in the flowchart of FIG.

That is, in this embodiment, as shown in FIG. 14, between the "entry" and the connector ■ in FIG. It is intended to provide

Here, T is the set washing time, 12 minutes,
It takes a value of either 6 minutes or 3 minutes. Also, t
is a constant.

The operation of this embodiment is to maintain the standard water flow for a certain period of time (from 0 to To), and then to
The water flow is strong only during section 1, ie, T, /l, and then returns to the standard water flow again.

Since l is a constant, the period of strong water flow and the total stirring time always have a constant ratio.

Originally, the total stirring time depends on the amount of laundry and how dirty it is.
The required time varies, and at the same time, the amount of water required also varies. Therefore, if the amount of laundry or dirt is small, the total agitation time and amount of water will be less, and accordingly, the amount of detergent will also be less, so the time it takes for the detergent concentration to reach a certain value will also be reduced. It will be shorter.

In other words, the amount of laundry is less, the dirt is less, and the total stirring time is 6.
If it is determined that 3 minutes or 3 minutes is sufficient, the amount of water,
Since the amount of detergent is also 1/2.1/3 of the total stirring time of 12 minutes, the time required for the detergent concentration to reach a constant value is also shortened to 1/2.1/3.

Experimentally, when the total stirring time is 12 minutes, a period of strong water flow of 3 to 4 minutes has shown a good value, so t = 3 to 4 minutes.
is a suitable value.

By implementing this example, it is possible to obtain good washing efficiency even when the total stirring time is changed.

Further, a fourth embodiment will be explained based on the flow shown in FIG. 15. In other words, the broken line frame 3 in FIG.
9B is a flow corresponding to the broken line frame 39 shown in FIG. 5 of the first embodiment, and the rest are the same.

Therefore, in this embodiment, the washing machine is operated by changing the forward and reverse periods in the main stirring period and the respective stop periods, and the washing machine is equipped with a display device that displays the execution of each time cycle. At least one display device is provided and displayed, and the display device is operated in synchronization with the execution of the time cycle corresponding to the display device.

FIG. 16 shows a display device 26-a showing the standard water flow on the progress display section 26 in the panel operation section of the washing machine.
, and a display device 26-b indicating a strong water flow is added, which is standard 32-2. Light dirt 32-b
is a part of the input switch section 32 that instructs fully automatic operation, and is transmitted to the instruction control section 25 via the signal path line 31.

That is, in FIG. 15, the stirring time T in the washing step is 0≦T<T.

Now, after turning off the display device 26-b indicating the strong water flow, turning on the display device 26-a indicating the standard water flow, and
Let M=ti and ts=t2.

Also, l1lo≦T<:’T.

Then, after turning off the display device 26-a indicating the standard water flow, turning on the display device 26-b indicating the strong water flow, and setting tM.
=13,1s-14.

Furthermore, when T+≦T≦(stirring setting time), the display device 26-b indicating strong water flow is again set to OF”T.
', turn on the display device 26-a indicating the standard water flow, t
Let M=tl and ts=t2.

Each display device 26-ar26-b indicating standard water flow 1 strong water flow
In FIG. 16, the signal for turning ON and OFF the standard water flow 9 is transmitted from the output circuit of the instruction control unit 25 shown in FIG.
6-a and 26-b.

Next, when the device according to this embodiment is used, the water flow being carried out is displayed on the display device 26 - which shows the standard water flow 1 strong water flow.
Since it can be visually confirmed by the blinking states of a and b, it is possible to check the operation even from a distance, and when adding detergent that is difficult to dissolve, such as powdered soap, it is possible to use a strong water stream. If it is a period of It is preferable in terms of washing efficiency, and in such a case, it is particularly effective to be able to visually check the water flow.

However, although some of the above-mentioned embodiments can be implemented using a conventional mechanical timer, this is replaced with an electronic timer, and the timer is adjusted according to the progress of the washing process. Since the reversal period and stop period can be easily changed at low cost, it is possible to generate chemical action and mechanical power that can remove dirt in the best condition without bothering the user. .

In the fourth embodiment, although a mechanical timer can be used as described above, in this case, the display devices 26-a and 26-b indicating one standard water flow and one strong water flow are turned on and the OPI?? A cam plate and an open/close switch are required. Since the cam plate is generally made of a molded plastic product, it costs a lot of money to manufacture. On the other hand, in the case of an electronic type like the one according to the present invention, at most two lead wires are added to the output signal path line 33, and the difference in cost is not clear. be.

Although the explanation has been given above using a fully automatic washing machine as an example, the same method can be adopted in a two-tub type washing machine and the same effect can be obtained.

〔Effect of the invention〕

When using the method of operating a washing machine according to the present invention, the washing efficiency can be improved, the washing time for washing can be shortened, and the washing can be done evenly and evenly by eliminating partial washing shortages. This invention can be said to have excellent practical effects.

[Brief explanation of drawings]

FIG. 1 is an open cross-sectional view of a fully automatic washing machine used to carry out the operating method of a fully automatic washing machine according to each embodiment of the present invention, FIG. 2 is an electric circuit diagram thereof, and FIG. , a washing process diagram showing the washing process of the fully automatic washing machine shown in FIG. 1, and FIG. 4 showing the operation of the agitation process subroutine according to the first embodiment of the washing machine operating method of the present invention. The flowchart, FIG. 5, is a diagram 70 showing the operation of the inversion subroutine, and FIG. 6 is,
Flowchart according to the second embodiment, Figures 7 and 8 are diagrams explaining the operation signals of the washing machine, Figure 9 is a diagram explaining the effects, Figure 10 is a comparison diagram of washing performance, Figures 11- FIG. 13 is an explanatory diagram of the ability of the fabric to be drawn under water, FIG. 14 is a flow diagram according to the third embodiment, FIG. 15 is a flow diagram according to the fourth embodiment, and FIG. 16 is a front view of the progress display section. 1...Outer frame, 4...Water tank, 5...Hanging rod, 7...
Basket, 8...Motor, 12 -Rotor blade, 13...
・Water supply valve, 16...Electronic timer, 18...Drain valve,
23...Pressure switch, 25...Instruction control unit, 26
...Progress display section, 26-2.26-b...Display device showing standard water flow 1 strong water flow, 31...Input signal pass line, 32...Input switch section, 34...Drive/a I
lr. $ 3 Itchy eyes 4- Hard 5th day 7 Figure $ 7 Figure T' 76 T" 0 inventors: Toshihiro Takahashi 0 inventors: Isao Hiyama, Hitachi City Higashitagamachi Factory 0 inventors: Ryo Kobayashi - Hitachi City Higashitagamachi Plant: 0 inventors: Katsura Miwano, Hitachi City Higashi Inside the Tagacho factory

Claims (1)

[Scope of Claims] (2) A washing process during a washing cycle in a washing machine which is provided with a rotary blade driven by a motor, a water tank for storing washing water, and a timer for controlling the motor ON-OFF'. During the main stirring period included in
Normal rotation and stop of the above rotor blades. A method for operating a washing machine, characterized in that the washing machine is operated by varying the forward and reverse periods in a time cycle that sequentially repeats reverse, stop, and forward rotation, and the periods of each stop. 2. In the product described in claim 1, the main stirring period is divided into a plurality of periods such as a first period, a second period, . . . , an Nth period, and the rotary blade rotates normally and stops. The forward and reverse periods in a time cycle that sequentially repeats reverse, stop, and forward rotation, and the periods of each stop, are
A method of operating a washing machine in which the operation is changed for each of the plurality of divided periods. 3. In the product described in claim 1, the main stirring period is divided into three periods: an early period, a middle period, and a latter period, and the rotation of the rotor blades is sequentially repeated as normal rotation, stop, reverse rotation, stop, and normal rotation. The forward and reverse periods and their respective stop periods in the Esu time cycle are changed for each of the above-mentioned divided periods, and the water flow created by the middle time cycle is
A method of operating a washing machine in which the water flow is stronger than that produced by the later time cycles. 4. In the item described in claim 3, in at least one of the periods between the first period and the middle period, and between the middle period and the second period, there is a positive period, a reverse period, and a stop of each of them. A method for operating a washing machine that gradually increases or decreases the time period, thereby providing sections in which the time cycle changes continuously. 5. A method for operating a washing machine as set forth in claim 3, wherein the length of the intermediate period is varied while maintaining a constant ratio with the total stirring time of the washing process. . 6. In the washing machine according to claim 1, the washing machine is provided with at least one display device for displaying the execution of each time cycle, and the washing machine is configured to display the execution of the time cycle corresponding to the display device. A method of operating a washing machine that is made to operate in synchronization with the 7. A method for operating a washing machine according to claim 1, wherein an electronic timer is used as a timer for ON-OFF control of the motor.