KR19990012728A - How to loosen tangled laundry during washing - Google Patents

Abstract

The present invention relates to a method of releasing tangled laundry during washing, while releasing laundry tangled with each other due to the occurrence of heart currents during washing and rinsing of the laundry before the final dehydration operation, while preventing the occurrence of vibration and noise during dehydration administration. It is to maximize washing and dewatering efficiency.

To this end, the present invention shortens the on / off time of the power applied to the motor 6, which is the driving source of the pulsator 5, before the final dehydration stroke of the laundry. It's a way to unwrap the tangled laundry while making a right turn

Description

How to loosen tangled laundry during washing

The present invention relates to a washing method using a washing machine, and more particularly, to a method of releasing tangled laundry during washing that releases the tangled laundry during the washing and rinsing stroke until the final dehydration stroke.

1 is a longitudinal sectional view showing a general automatic washing machine, in which a tub 2 is supported by a plurality of supports 3 inside the main body 1, and laundry (not shown) is contained in the tub. The washing tank 4 is rotatably installed, and a pulsator 5 for generating water flow in the washing water is rotatably installed at the center of the bottom surface of the washing tank.

The pulsator 5 is fixed to a shaft 7 which rotates in accordance with the driving of the motor 6, and as the rotational force of the motor is transmitted to the lower portion of the shaft through the timing belt 8, the washing tank 4 or the pulsator The clutch 9 which selectively rotates (5) is provided.

In addition, the upper side of the main body 1 is provided with a water supply device 10 for supplying cold water and hot water into the tub 2 at the same time, or selectively supplying cold water and hot water into the tub according to the user's selection of the water supply mode. At the outlet side of the water supply device, a detergent container 11 for automatically inputting detergent in the tub according to the setting of the washing mode is installed, and a lower part of the tub for draining the washing water to the outside after washing is completed. The valve 12 is provided.

Therefore, if the laundry is put in the washing tank 4 while the door 13 installed on the upper part of the main body 1 is opened and closed, and then the door that was opened is closed, the water is not supplied for a predetermined time (about 8 seconds). The pulsator 5 detects the amount of laundry while inverting the left and right sides to determine the water supply amount.

When the water supply amount is set according to the laundry detection method as described above, washing, rinsing, and dehydration operation are sequentially performed according to the control signal of the microcomputer.

That is, after washing water is supplied to the washing tank 4 through the water supply device 10 according to the control signal of the microcomputer, the supply of the washing water is stopped. The washing water supplied when the washing water is supplied to the detergent container 11 is supplied. It is automatically put into the washing tank 4 together with the detergent.

In this way, after the washing water and the detergent are supplied into the washing tank 4, power is applied to the motor 6 generating the rotational force, and thus the motor starts to rotate in the forward and reverse directions.

When the rotational force is transmitted to the clutch 9 through the timing belt 8 wound between the pulleys 14a and 14b according to the rotation of the motor, the pulse force fixed to the shaft 7 while the rotation speed of the motor is decelerated Since the eater 5 is rotated, the heart water flows from the wash water in the washing tank 4 so that the laundry flows, and accordingly, the heart water flow and the friction force with the washing tank due to the rotation of the pulsator, the decomposition force of the detergent, etc. Washing is done.

After the washing operation of the laundry for a predetermined time by the operation as described above, the drain valve 12 of the drainage device is opened by receiving the control signal of the microcomputer, so that the contaminated washing water in the washing tank 4 is moved by gravity. Is drained to the outside.

After draining the contaminated residual wash water in the washing tank 4, the washing water is supplied to the washing tank by the operation as described above, and then the pulsator 5 is rotated to perform a rinsing stroke a predetermined number of times. In the case of supplying wash water in the middle, no detergent is contained in the detergent container 11.

After the rinsing stroke is set by the user, the washing tank 4 is rotated by the switching of the clutch 9 to perform the dehydration stroke. Then, the buzzer, etc., notifies the user that the washing is completed, and ends the driving of the washing machine. do.

Figure 2 is a schematic diagram for explaining the principle of the flow of water generated by the rotation of the pulsator, look at the principle that the heart flow is generated in accordance with the rotation in the pulsator 5 during the washing and dehydration operation as described above.

When the pulsator 5 is rotated by the driving of the motor 6, the washing water located above the pulsator is pushed to the inner surface of the washing tank 4 by centrifugal force, and the center of the pulsator is emptied. Since the wash water is lowered to the empty part, the circulation of the wash water is made while forming the heart stream.

When the washing and rinsing administration is performed while circulating the wash water by the formation of the heart stream as described above, the entanglement of the laundry occurs because the portion serving as the sink S is one central portion.

Accordingly, immediately before the rinsing cycle, that is, after draining the contaminated washing water generated according to the washing stroke, and then dewatering to remove the contaminated washing water contained in the laundry as much as possible or whenever the rinsing cycle is finished. The following problems occurred due to the tangling of the laundry during dehydration.

First, when the laundry is located on one side of the washing tub 4 in a state in which drainage is completed, an unloading load is applied when the washing tub 4 is rotated, so that the washing tub 4 collides with the tub 2. And vibration was generated, and the debalance was not performed because the safety switch operates when the degree of unbalance is severe.

Secondly, even if the laundry is tangled and the dehydration administration is finished, the laundry located on the outside is dehydrated to some extent, but the tangled inner laundry is not completely dehydrated, which takes a long time due to drying.

Third, when the laundry is taken out from the washing tank 4 in the state where the dehydration administration is completed, the housewives who are weak in power are mainly used to remove the tangled laundry.

The present invention has been made in order to solve such a problem in the prior art, before the dehydration administration or the final dehydration administration of the rinsing administration performed during the washing and rinsing administration as the laundry is tangled due to the occurrence of heart current during washing and rinsing administration of the laundry. The purpose of this is to remove the tangled laundry and prevent the occurrence of vibration and noise during dehydration administration.

Still another object of the present invention is to allow housewives who are relatively weak in strength to easily take out laundry from a washing tank.

According to the first embodiment of the present invention, in the washing process controlled by the washing stroke, rinsing stroke, dehydration stroke, when the rinsing is completed in the final rinsing stroke and the drain valve is opened to dissolve the tangled laundry until the drainage is completed When rinsing, the rotation angle of the pulsator is less than the rotation angle of the pulsator is provided with a method for releasing the tangled laundry during the laundry, characterized in that the pulsator forward and reverse rotation.

According to a second embodiment of the present invention, in a washing process controlled by a washing stroke, a rinsing stroke, and a dehydrating stroke, a pulsator having a rotation angle smaller than the rotation angle of the pulsator during rinsing when the rinsing is completed during the final rinsing stroke The first step of forward and reverse rotation for a set time, and the second step of draining the rinsing water for a predetermined time when the first step is completed, and the first and second steps until the rinsing water is completely drained Provided is a method of dissolving tangled laundry during washing, characterized by repeated execution.

According to a third embodiment of the present invention, in a washing method controlled by a washing stroke, a rinsing stroke, and a dehydrating stroke, the rotation angle of the pulsator when rinsing for a set time for releasing the tangled laundry when drainage is completed during the final rinsing stroke There is provided a method of releasing tangled laundry during washing, characterized in that the pulsator is rotated forward and backward in a short cycle with a smaller rotation angle.

1 is a longitudinal sectional view showing a general automatic washing machine

Figure 2 is a schematic diagram for explaining the principle of generating water flow according to the rotation of the pulsator

3 is a flow chart showing a conventional washing procedure

4A and 4B are flowcharts illustrating a first embodiment of the present invention.

5A and 5B are flowcharts illustrating a second embodiment of the present invention.

6A and 6B are flowcharts illustrating a third embodiment of the present invention.

Explanation of symbols for main parts of the drawings

4: washing tank 5: pulsator

6: motor 12: drain valve

Hereinafter, the present invention will be described in more detail with reference to FIGS. 4A to 6B.

A feature of the present invention is that the pulsator 5 intermittently forwards and reverses at an angle smaller than the angle at which the pulsator 5 rotates in order to generate a heart flow during washing or rinsing stroke.

The present invention is executed in any stroke after washing and rinsing of the laundry is completed in the process of washing-draining-dehydrating-rinsing-draining-dehydrating administration, or before the washing and rinsing administration is finished and final dehydration is performed. It is possible.

Figures 4a and 4b is a flow chart showing a first embodiment of the present invention, the first embodiment of the present invention is to loosen the tangled laundry when the washing and rinsing drainage is made.

4A is a flow chart illustrating a method of releasing tangled laundry during the draining of the final rinsing stroke. When it is determined that the advanced rinsing stroke is the final rinsing stroke, it is determined that the final rinsing stroke is the final rinsing stroke. When rinsing the motor 6, which is the driving source of the pulsator 5, is set to the microcomputer so as to apply a power that is inverted in a short cycle, the rotation angle of which is smaller than the rotation angle of the pulsator.

At this time, the phase of the power applied to the motor 6 is inverted in a short cycle so that the left and right rotations of the pulsator 5 are inverted in a shorter period than when rinsing so that the pulsator 5 is set at a small angle (drainage is completed). During the washing, rinse or rinse off the tangled laundry.

Then, when the drainage of the wash water is completed, the power applied to the motor 6 is turned off to stop the driving of the motor, and then the dehydration operation is performed as in the prior art, and the driving of the washing machine is stopped.

Therefore, during the rinsing cycle, it is determined whether or not the current rinsing stroke is the final rinsing stroke of the set number of times, and if it is not the final rinsing stroke, the rinsing stroke is completed, and then draining after draining.

For example, it is determined whether the rinsing stroke proceeded after the first rinsing stroke is the final rinsing stroke. If the rinsing stroke is not the final rinsing stroke, draining and dehydration is performed, and then water is supplied to perform the second rinsing stroke and the second rinsing stroke is performed. .

However, if the rinsing stroke is determined to be the final rinsing stroke after the nth rinsing stroke is completed, the pulsator 5 may be inverted in a short period by reversing the phase of the power applied to the motor 6 while draining by opening the drain valve 12. The left and right turns to reverse the pulsator 5 to a smaller angle than when rinsing, and the pulsator 5 is reversed left and right for a set time (time for completion of drainage).

In this way, when the pulsator 5 is reversed left and right in a short cycle, strong water flow is generated in the washing tank 4, and the laundry which is entangled with each other by the heart flow during washing or rinsing administration is gradually released. It is repeated until it is completed.

When the drainage of the wash water is terminated while the laundry tangled in the above operation is mutually released, the power applied to the motor 6 is turned off, so that the dehydration operation can be performed as in the prior art.

Thus, after the final dehydration administration, the laundry is not tangled with each other, so even housewives with weak strength can easily take the laundry out of the washing tank.

Figure 4b is a flow chart showing a method of releasing tangled laundry during the drainage of the washing and rinsing stroke, each time the washing and rinsing is completed in the washing stroke and rinsing stroke and the drain valve 12 is opened to the heart stream during washing and rinsing The loosening of the tangled laundry is carried out until the drainage is completed.

When washing and rinsing are completed, the rinsing phase of the power applied to the motor 6, which is the driving source of the pulsator 5, is inverted in a short period of rotation angle smaller than the rotation angle of the pulsator until the drainage is completed. Set this to the microcomputer so that the left and right turns of 5) are reversed in a short cycle.

That is, another embodiment of the first embodiment is to solve the problem that occurs when dewatering after the completion of draining the laundry tangled whenever the drainage proceeds during washing and rinsing administration.

After the washing and rinsing cycle is completed, the operation of releasing the tangled laundry is described in detail during the operation of the embodiment, and thus a detailed description thereof will be omitted.

Figures 5a and 5b is a flow chart showing a second embodiment of the present invention, the second embodiment of the present invention is to loosen the tangled laundry during the drainage of the washing and rinsing stroke like the first embodiment.

However, while the first embodiment is to dissolve the tangled laundry while continuously draining, the second embodiment is to perform the operation of releasing the tangled laundry for a predetermined time, and then drain the water for a predetermined time. The difference is that it is done repeatedly until.

FIG. 5A is a flowchart illustrating a method of releasing tangled laundry during draining of the final rinsing stroke. When the rinsing stroke is determined to be the final rinsing stroke, it is determined that the rinsing stroke is the final rinsing stroke. When rinsing the phase of the power source applied to the motor 6 as the driving source, the first rotation step is performed such that the left and right rotations of the pulsator 5 are inverted in a short period by inverting the rotation angle smaller than the rotation angle of the pulsator. Loosen tangled laundry in the rinse cycle.

After performing the first step for a predetermined time, the second step of stopping the supply of power applied to the motor 6 and opening the drain valve 12 to drain for a predetermined time.

Then, after the second step is performed for a predetermined time, the microcomputer is set to repeat the first and second steps until the wash water in the washing tank 4 is completely drained.

If it is determined that the drainage is completed in the microcomputer by repeating the first and second steps, the driving of the pulsator 5 is stopped and then dehydration stroke is performed as in the prior art, and the driving of the washing machine is stopped.

Further, the left and right stirring speeds and periods of the pulsator 5 may be set to gradually shorten as the rinsing stroke progresses.

This is to generate more powerful water flow as the number of washes in the washing tank 4 is reduced, so that the tangled laundry can be more effectively released even at a low water level.

Therefore, during the rinsing cycle, it is determined whether or not the current rinsing stroke is the final rinsing stroke of the set number of times, and if it is not the final rinsing stroke, the rinsing stroke is completed, and then draining after draining.

For example, it is determined whether the rinsing stroke proceeded after the first rinsing stroke is the final rinsing stroke. If the rinsing stroke is not the final rinsing stroke, draining and dehydration is performed, and then water is supplied to perform the second rinsing stroke and the second rinsing stroke is performed. .

However, if the rinsing stroke is determined to be the final rinsing stroke after the nth rinsing stroke is completed, the phase of the power applied to the motor 6, which is the driving source of the pulsator 5, is inverted for a predetermined period after the rinsing stroke is completed. Since the pulsator 5 is reversed left and right in a short cycle, a strong water flow is generated in the washing tank, and thus laundry that is entangled with each other by the heart flow during washing or rinsing administration is gradually released.

As the pulsator 5 rotates left and right at a small angle for the set time as described above, after the tangled laundry is released, the power applied to the motor 6 is cut off and the drain valve 12 is opened to drain water for a predetermined time. You lose.

After that, when the predetermined time elapses, the drain valve that is open is closed again and power is applied to the motor 6 as described above, thereby releasing the tangled laundry while the pulsator 5 intermittently rotates.

When the amount of washing water in the washing tank 4 is reduced by the repeated operation as described above, when the phase of the power applied to the motor 6 is shorter, more powerful water flow is generated. You lose.

The operation as described above is made until the drainage is completed, and after the drainage is completed, the power applied to the motor 6 is turned off and at the same time the drain valve is kept open, so that the drainage administration can be performed as in the prior art. It becomes possible.

Thus, after the final dehydration administration, the laundry is not tangled with each other, so that even relatively weak housewives can easily take out the dehydrated laundry from the washing tank.

5B is a flowchart illustrating a method of releasing tangled laundry during draining of a washing and rinsing stroke. When the washing and rinsing is completed, an operation of releasing the tangled laundry for a predetermined time and then draining a predetermined time is performed as described above. Each run is repeated until drainage is completed.

After washing and rinsing, the phase of power applied to the motor 6 which is the driving source of the pulsator 5 is rinsed for a predetermined period until the drainage is completed. After the left and right turns of the pulsator 5 are reversed in a short cycle, and then the intermittent rotation of the pulsator is made for a set time, the drain valve 12 is opened for a set time so that draining is performed until the drainage is completed. Set this to your microcomputer.

That is, in another embodiment of the second embodiment, when the drainage proceeds during washing and rinsing administration, the laundry is tangled for a predetermined time, and afterwards, the draining operation is repeatedly performed until the drainage is completed. It is to solve the problem that occurs when the dehydration.

After the washing and rinsing cycle is completed, the operation of releasing the tangled laundry is described in detail during the operation of the embodiment, and thus a detailed description thereof will be omitted.

6A and 6B are flowcharts illustrating a third embodiment of the present invention, in which a third embodiment of the present invention immediately before dehydration is performed after draining of contaminated washing water and rinsing water during washing or rinsing administration. The electric power is supplied to the motor 6 which is the driving source of the pulsator 5 for a predetermined time so as to loosen the tangled laundry.

6A is a flow chart illustrating a method of releasing tangled laundry in a state in which drainage of the final rinsing stroke is completed. When it is determined that the advanced rinsing stroke is the final rinsing stroke, it is determined that the final rinsing stroke is completed. When rinsing the phase of the power source applied to the motor 6 which is the driving source of the pulsator 5 for a period of time, the motor rotates the motor at a shorter period of rotation than the pulsator's rotation angle, so that the left and right rotations of the pulsator 5 are reversed. Set this to your microcomputer as much as possible.

At this time, if the pulsator 5 is set to the microcomputer so that the on / off time of the power applied to the motor 6 is shortened to allow the left and right stirring movement within a gradually small angle, the degree of loosening of the laundry is improved.

After the pulsator 5 is reversed left and right in a short period for the time set in the microcomputer, driving of the pulsator 5 is stopped and dehydration operation is performed as in the prior art, and driving of the washing machine is stopped.

Therefore, during the rinsing cycle, it is determined whether or not the current rinsing stroke is the final rinsing stroke of the set number of times, and if it is not the final rinsing stroke, the rinsing stroke is completed, and then draining after draining.

For example, it is determined whether the rinsing stroke proceeded after the first rinsing stroke is the final rinsing stroke. If the rinsing stroke is not the final rinsing stroke, draining and dehydration is performed, and then water is supplied to perform the second rinsing stroke and the second rinsing stroke is performed. .

However, if the rinsing stroke is determined to be the final rinsing stroke after the nth rinsing stroke is completed, the rinsing stroke is completed to open the drain valve to drain the rinsing water.

When the sensing means detects that all the rinsing water in the tub is drained, the microcomputer applies power to the motor 6, which is the driving source of the pulsator 5, by inverting the phase in a short cycle. As a result, the laundry which is entangled with each other by heart flow during washing or rinsing administration is dispersed to each other, so that the laundry is entangled gradually.

After the laundry is entangled by the left and right stirring motion of the pulsator 5 according to the driving of the motor 6 for a set time, the power applied to the motor 6 is turned off and the drain valve is kept open. Since it is possible to perform a dehydration administration as in the prior art.

Thus, after the final dehydration administration, the laundry is not tangled with each other, so that even relatively weak housewives can easily take out the dehydrated laundry from the washing tank.

6B is a flowchart illustrating a method of releasing tangled laundry in a state where draining of the washing and rinsing stroke is completed, and the operation of releasing tangled laundry after draining of the washing and rinsing stroke is completed as described above for a set time. It is.

When the drainage is completed during the washing and rinsing cycle, the pulsator may be inverted at a shorter rotation angle than the rotation angle of the pulsator when rinsing the phase of the power applied to the motor 6 which is the driving source of the pulsator 5 for a predetermined time. Set this to the microcomputer so that the left and right turns of 5) are reversed in a short cycle.

That is, another embodiment of the third embodiment is to solve the problem caused when dehydration by performing the operation of releasing the tangled laundry for a certain time each time the drainage is completed during washing and rinsing administration.

In the washing and rinsing administration, the operation of releasing the tangled laundry after the drainage is completed is described in detail in the operation of the embodiment, and thus a detailed description thereof will be omitted.

Meanwhile, in each of the embodiments of the present invention, in the method of releasing the tangled laundry by performing before the final dehydration stroke (Figs. 4A, 5A, and 6A), releasing the tangled laundry in the same manner before dehydration of the washing stroke, It is understood that the rinsing efficiency of the laundry is increased.

As described above, the present invention is to release the laundry tangled in the dehydration administration, so that the following effects are obtained.

First, since the laundry is not evenly distributed on one side of the washing tank 4 even before the drainage is completed, that is, the washing tank 4 is prevented from generating noise and vibration when the washing tank 4 rotates at high speed. .

Second, since dehydration is performed in the state where the laundry is unfolded, the dehydration efficiency can be maximized, and the laundry can be dried in a short time.

Third, even when the laundry is removed from the washing tank in the state where the dehydration operation is completed, the laundry is not entangled and separated from each other, so that even weak housewives can easily take the laundry out of the washing tank.

Claims (11)

In the washing method controlled by the washing stroke, rinsing stroke, and dehydration stroke, when the rinsing is completed at the final rinsing stroke and the drain valve is opened, the rotation angle is more than the rotation angle of the pulsator when rinsing to release the tangled laundry until the drainage is completed. How to untie a tangled laundry during washing, characterized in that the pulsator is rotated forward and reverse in a short cycle. The method of claim 1, A method of releasing tangled laundry during washing, wherein the pulsator's forward and reverse rotation operations are performed for a set time regardless of the completion of drainage. The method of claim 1, When rinsing to loosen the tangled laundry, the pulsator is rotated forward and backward in a shorter cycle than the pulsator's rotation angle. How to unpack your laundry. The method of claim 1, When rinsing to loosen the tangled laundry, the pulsator is rotated forward and reverse in a shorter period than the pulsator's rotation angle. How to loosen tangled laundry. In the washing method controlled by the washing stroke, rinsing stroke, and dehydration stroke, when the rinsing is completed during the final rinsing stroke, the pulsator is rotated forward and reverse for a predetermined period of time with a rotation angle smaller than the rotation angle of the pulsator during rinsing. Step 1, the second step of draining the rinsing water for a predetermined time when the first step is completed, the washing step characterized in that the steps 1 and 2 are repeatedly executed until the rinsing water is completely drained How to loose gin laundry. The method of claim 5, When rinsing to loosen the tangled laundry, the pulsator is rotated forward and backward in a shorter cycle than the pulsator's rotation angle. How to unpack your laundry. The method of claim 5, When rinsing during draining to loosen the tangled laundry, the rotation angle of the pulsator is rotated at a shorter time than the pulsator's rotation angle. How to loosen tangled laundry during washing. The method according to any one of claims 5 to 7, A method of dissolving tangled laundry during washing, in which the on / off time of the power applied to the motor is gradually shortened as the washing and rinsing administration proceeds. In the washing method controlled by the washing stroke, rinsing stroke, and dehydration stroke, the pulsator is rotated at a shorter rotation time than the rotation angle of the pulsator when rinsing for a set time to release the tangled laundry when the drainage is completed during the final rinsing stroke. Method of dissolving tangled laundry during washing, characterized by forward and reverse rotation. The method of claim 9, The tangled laundry during washing, characterized in that the pulsator is rotated forward and reverse at a shorter interval than the pulsator's rotation angle when rinsing to loosen the tangled laundry. How to Solve. The method of claim 9, When rinsing to loosen the tangled laundry, the operation of rotating the pulsator forward and reverse in a cycle shorter than the rotation angle of the pulsator is performed each time the washing and draining according to the set rinsing cycle are completed. How to loosen tangled laundry during washing.