JP3864769B2 - Washing and drying machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing / drying machine having a process of drying clothes by blowing warm air into an inner tub having a rotation center axis in a substantially vertical direction, which can be performed consistently from washing to drying.
[0002]
[Prior art]
Conventionally, this type of washing and drying machine supports an inner tub having a rotation center axis in a vertical direction in an outer tub that is elastically suspended in a casing, and a stirring blade is provided at the inner bottom of the inner tub. In the washing process and rinsing process, the agitating blades are rotated to wash and rinse clothes in the inner tub. In the dehydration process, the inner tub is rotated at high speed to dehydrate and dry following the dehydration process. In the process, the air heated by the heating device is blown into the inner tank by a blower and dried.
[0003]
Briefly explaining the operation in the above configuration, the inner blade is stopped after the dehydration process is completed, and the stirring blade is rotated for 1 second at a rotation speed of 130 r / min for 1 second and 0.5 seconds for OFF inversion. The cloth to be reciprocated 3 times is peeled off, and the clothes stuck to the inner wall surface of the inner tub by centrifugal force are removed at the time of dehydration.
[0004]
Next, the cloth enters the drying process after the peeling process. First, with the inner paddle stopped, the stirring blade is repeatedly rotated in the forward direction at a rotation speed of 130 r / min for 0.5 seconds ON and 0.5 seconds OFF. A loosening process for changing the clothes up and down is performed, and then the warm air heated by the heating device is supplied to the inner tank 3 for several minutes while the inner tank and the stirring blade are stopped to dry the clothes. Then, the degree of drying is determined, and if it is dry, the drying process is terminated, but if it is not dried, the above-described loosening process and drying operation are repeated again.
[0005]
[Problems to be solved by the invention]
In such a conventional washer-dryer, in the loosening process by rotating the stirring blade, the clothing moved in the outer circumferential direction by the centrifugal force of the stirring blade rotation comes into contact with the side surface of the inner cage, and at this time the clothing is rotated in the rotational direction. Therefore, there is a speed difference with the inner shaft that is stopped. As a result, the clothes may be twisted or entangled due to friction with the inner heel, which may cause severe wrinkles or uneven drying.
[0006]
The present invention solves the above-mentioned conventional problems, and in the drying process, the inner jar and the stirring blade are synchronized and rotated in the normal direction so that the friction between the garment and the inner heel when the garment is changed up and down by the stirring blade. The purpose is to eliminate kinking and entanglement of clothing, to suppress the generation of wrinkles, and to dry uniformly.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the washing / drying machine of the present invention includes a tank rotation stirring mode in which the inner tank and the stirring blade are synchronized with each other in a normal direction and reversed in the drying process, and the inner tank and the stirring blade. There are a tank rotation mode for drying while rotating the inner tank in one direction in synchronism, and a stirring mode for rotating by rotating only the stirring blade, and drying is performed in the tank rotation mode at the initial stage of drying. As the drying progresses, the mode changes to the tank rotation stirring mode, and further to the stirring mode at the stage of finishing the drying .
[0008]
Thus, for example, at the initial stage of drying, which is easy to entangle due to the high water content, drying is performed without causing any twisting or entanglement of the clothing by drying mainly in the tank rotation mode that does not move the clothing at all. As the drying rate increases and the clothes become harder to entangle, the tank rotation stirring mode gradually shifts to the main process, and while changing the clothes up and down, the clothes are twisted and entangled and dried. In the finishing stage, the agitation mode, which can more strongly change the top and bottom of the garment, shifts to the main process, so that the garment is included in the drying process, such as drying with warm air evenly. Fine control to move the clothes appropriately according to the amount of water can suppress wrinkle generation and dry it evenly.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 includes an outer tub elastically suspended in a housing, an inner tub having a rotation center axis in a substantially vertical direction and rotatably supported in the outer tub, and a stirring blade provided rotatably in the inner bottom portion, and a motor provided in the bottom of the outer tub, and a drive means for transmitting rotation of the motor to the inner tub, and a stirring blade, blowing to aeolian into said tank Means, heating means for heating the air blown by the blowing means, and control means for controlling the operation of the motor, driving means, blowing means, and heating means, and the driving means is connected to the inner tub A hollow dewatering shaft, a washing shaft disposed in a hollow portion of the dewatering shaft and connected to the stirring blade, and a vertically movable clutch for switching the rotation of the motor between transmission and non-transmission to the dehydration shaft It has a plate, wherein, in the drying process, the inner tub A tank rotating stirring mode for drying while forward is reversed by synchronizing the stirring blade, a tank rotation mode for drying while rotating the inner tub in one direction by synchronizing the stirring blade and the inner tub, the stirring It has a stirring mode in which only the blades are rotated to dry, and in the initial stage of drying, drying is performed in the tank rotation mode, and the process proceeds to the tank rotation stirring mode as the drying progresses. It is intended to shift to the agitation mode, and by this, for example, at the initial stage of drying that is easy to tangle because of the high water content, the tank rotation mode that does not move the clothing at all is used to perform the drying, As the clothes are dried without causing any twisting or entanglement of the clothes, the drying rate increases, and the clothes become less entangled, the tank rotation stirring mode gradually shifts to the main process. By switching to the main process, the agitation mode that allows the clothes to be exchanged up and down more strongly at the stage of drying finish, while suppressing the twist and entanglement of the clothes while changing the clothes up and down. It is possible to finely control the clothes appropriately according to the moisture content of the clothes in the drying process, such as to dry evenly by applying warm air, to suppress the generation of wrinkles and to dry uniformly.
[0010]
【Example】
Example 1
A first embodiment of the present invention will be described with reference to FIGS. The casing 11 has a configuration in which an outer tub 13 is elastically suspended and supported by a plurality of suspensions 12 and vibrations during operation are absorbed by the suspensions 12. Inside the outer tub 13, a taper-shaped inner tub 14 having a central axis of rotation in a substantially vertical direction and having an inner diameter that increases toward the upper side to accommodate clothing is rotatably supported. A stirring blade 15 that stirs the clothes is rotatably provided. The stirring blade 15 includes a rib 17 for hooking clothes, and a tapered portion 16 is provided on the outer peripheral side to form a pan shape.
[0011]
A number of dewatering holes 18 are provided in the inner peripheral wall of the inner tank 14, and a fluid balancer 19 is provided above the dewatering holes 18. A motor 20 and driving means for transmitting the rotation of the motor 20 to the inner tank 14 and the stirring blade 15 are attached to the bottom of the outer tank 13.
[0012]
The drive means has a hollow dewatering shaft 21 connected to the inner tub 14, a washing shaft 22 disposed in the hollow portion of the dewatering shaft 21 and connected to the stirring blade 15, and a lower portion connected to the rotor 20 a of the motor 20. A decelerating mechanism 24 that is included in the input shaft 23 and the dehydrating shaft 21, uses the input shaft 23 as an input side, and the washing shaft 22 as an output side, and decelerates and transmits the rotation of the input shaft 23 to the washing shaft 22; And a clutch plate 25 for switching the transmission and non-transmission of rotation of the rotor 20a to the dehydrating shaft 21 by moving up and down, a clutch lever 26 for moving the clutch plate 25 up and down, and a clutch lever A geared motor 39 for driving the motor 26 and the like.
[0013]
As shown in FIG. 1, when the clutch plate 25 is at the lower side of the movable range, the lower teeth 25a provided on the lower side of the clutch plate 25 and the rotating teeth 20b provided on the rotor 20a mesh with each other. The rotation is transmitted from the dehydrating shaft 21 to the inner tank 14. In this state, when the dewatering shaft 21 is rotated by the rotation of the rotor 20a, the speed reduction mechanism 24 is also rotated integrally. Therefore, the washing shaft 22 is not decelerated by the speed reduction mechanism 24, and the rotor 20a, the dewatering shaft 21 and The washing shaft 22 rotates synchronously. That is, the inner tank 14 and the stirring blade 15 rotate in synchronization.
[0014]
When the clutch plate 25 is moved upward in the movable range by the clutch lever 26 driven by the geared motor 39, the lower teeth 25a of the clutch plate 25 and the rotating teeth 20b of the rotor 20a are disengaged, and the rotation of the rotor 20a is reduced. Then, it is transmitted only to the stirring blade 15 through the input shaft 23, the speed reduction mechanism 24 and the washing shaft 22. When the clutch plate 25 is further moved upward, as shown in FIG. 2, the upper teeth 25b provided on the upper side of the clutch plate 25 and the stationary teeth 27a provided on the stationary portion 27 are engaged with each other, and the dehydrating shaft 21 is fixed. The inner tank 14 is fixed.
[0015]
A passage is formed from the lower part of the outer tub 13 to a circulation duct 29 via a retractable lower bellows-like hose 28, and an outlet of the circulation duct 29 is connected to an inlet of a drying fan (blower unit) 30. The outlet of the drying blower 30 is connected to a passage 29a, a heater (heating means) 31 is provided in the passage 29a, and a telescopic upper bellows-like hose 32 is connected to the passage 29a. A jet duct 33 is connected to the tip of the upper bellows-like hose 32 and opens toward the inner tank 14. Since the inner tank 14 communicates with the outer tank 13 through the dewatering holes 18 on the inner peripheral wall, these passages constitute a circulation path.
[0016]
An openable / closable lid 35 is provided on the upper part of the outer tub 13, and can be opened when the user puts in and out clothes, and when the drying operation is performed, the circulation path is sealed by closing. The cooling fan 36 is attached to the side surface of the housing 11 and is configured to cool the lower portion of the inner tank 14 and the circulation duct 29. The drain valve 37 drains the water in the outer tub 3 from the drain hose 43.
[0017]
The control means 38 controls the operations of the motor 20, the drive means, the drying fan 30, the heater 31, the cooling fan 36, the drain valve 37, etc. to control the washing, rinsing, dehydration and drying processes.
[0018]
The operation in the above configuration will be described. First, in the washing process, the control means 38 rotates the inner tub 14 containing clothes and washing water by driving the motor 20 with the clutch plate 25 at the lower part of the movable range as shown in FIG. At this time, the drain valve 37 is closed.
[0019]
Thereby, the outer peripheral part of the washing water in the inner tub 14 is raised by centrifugal force. Accordingly, the washing water between the inner tub 14 and the outer tub 13 rises along the inner wall of the outer tub 13, and then is sprinkled from the upper part of the inner tub 14 into the inner tub 14 and circulates. As a result, the washing water passes through the clothes in the inner tub 14 and is washed.
[0020]
Thereafter, the clothes are rinsed in the same manner as the washing process. In the dehydration process, the drain valve 37 is opened to drain the water from the drain hose 43, and then the motor 20 is driven in a clutch state as shown in FIG. The inner tub 14 containing the clothes is rotated at a high speed. Due to the centrifugal force generated by this, the clothes are pressed against the inner wall of the inner tub 14, the moisture is separated from the clothes by this centrifugal force, drains from the dewatering hole 18 to the outer tub 13, drains from the drain hose 43, and the dehydration process is performed. proceed.
[0021]
In the drying process, dry hot air is sent to the inner tank 14 through the upper bellows-like hose 32 and the ejection duct 33 by the air blown by the drying blower 30 and the heat generated by the heater 31. The warm air sent into the inner tub 14 removes moisture from the garments when passing through the gaps between these garments, and after getting out from the inner tub 14 to the inside of the outer tub 13 in a wet state, the lower bellows-like hose 28 To the circulation duct 29. When the hot air containing moisture passes through the inner wall of the outer tub 13 and the inside of the circulation duct 29, the lower part of the outer tub 13 and the outer wall of the circulation duct 29 are cooled by the cooling fan 36. The moisture of the moist air is condensed on the inner wall, and the moist warm air is dehumidified and returned to the drying fan 30. The water condensed on the inner wall of the outer tub 13 and the circulation duct 29 is discharged from the drain hose 43 by opening the drain valve 37 as necessary. Then, after the drying process is finished, the heater 31 is turned off, a blowing process for driving the drying fan 30 and the cooling fan 36 is performed, and after the dried clothes are cooled down, the process is ended. Here, the air-cooled dehumidification method using cooling air is used as means for cooling the wet warm air, but a water-cooled dehumidification method may be used.
[0022]
In the drying process, the control unit 38 controls the operations of the motor 20, the driving unit, the drying fan 30, the heater 31, and the cooling fan 36 as described below. When the washing process is finished and the drying process is started, the clothes are attached to the wall surface of the inner tub 14 at the last dehydration of the washing process. A cloth peeling process is performed to increase the contact area.
[0023]
Specifically, the geared motor 39 is driven, the clutch plate 25 is moved upward via the clutch lever 26, and the motor 20 is turned on for 0.4 seconds and 1.2 seconds in the clutch state as shown in FIG. The stirring blade 15 is reciprocated three times with the inner tank 14 being fixed in a state of being reversely rotated in the OFF time period. By doing so, the clothes attached to the wall surface of the inner tub 14 at the time of dehydration are peeled off, and the cloth area of the clothes increases to increase the contact area with the air, so that the subsequent drying progresses faster. To do.
[0024]
Next, in the clutch state as shown in FIG. 1, the motor 20 is rotated, and the tank rotation mode for drying the inner tank 14 while rotating the inner tank 14 in one direction at a rotation speed of 35 r / min is performed for 15 minutes. In the tank rotation mode, since the inner tank 14 is only slowly rotated in one direction, the clothing does not move in the inner tank 14. For this reason, there is no twisting or entanglement of the clothing at the initial stage of drying, which is easy to entangle due to the high water content, and the drying proceeds sufficiently without moving the clothing because of the high water content. .
[0025]
Next, the rotation of the inner tank 14 is stopped, and the motor 20 is rotated in the normal direction at a time period of 0.5 seconds ON and 2.5 seconds OFF while keeping the clutch state as shown in FIG. A tank rotation stirring mode is performed for 30 seconds, in which the drying is performed while reversing forward at a rotation speed of min. At this time, the stirring blade 15 rotates in synchronization with the inner tank 14, and at the time of switching between forward rotation and reverse rotation, an electromagnetic brake is applied to the motor 20 so that the inner tank 14 can be quickly turned off during an OFF time of 2.5 seconds. Stops inertial rotation and quickly performs reverse rotation. In the tank rotation stirring mode, the clothing is moved to the outer peripheral side of the stirring blade 15 by the centrifugal force generated by the rotation while being hooked on the rib 17 provided on the stirring blade 15, and is moved upward by the tapered portion 16. Receiving force, it is bounced up at the outer peripheral end of the stirring blade 15, and it is switched up and down by repeating this. The clothing that is spun up while rotating contacts the inner wall side surface of the inner tub 14, but the inner tub 14 is also rotating, so there is no rotational speed difference between the garment and the inner tub 14, and friction is generated. There is nothing. For this reason, while changing clothes up and down, the twist and entanglement of clothes can be suppressed, generation | occurrence | production of wrinkles can be suppressed, and it can dry uniformly. Further, since the inner tub 14 is formed in a tapered shape, when the garment that is flipped up contacts the side surface of the inner wall of the inner tub 14, the garment receives an upward force, and the garment is further lifted upward. Thereby, clothing can be greatly changed up and down, and it can dry uniformly. Then, the tank rotation mode is performed again, and thereafter, the tank rotation mode and the tank rotation stirring mode are repeated sequentially.With the progress of drying, the time of the tank rotation mode is shortened, and the time of the tank rotation stirring mode is lengthened. We will increase the frequency of changing clothes and continue drying.
[0026]
When entering the finishing stage near the end of drying, the clutch is switched to the clutch state shown in FIG. 2, and the motor 20 is rotated in the forward direction with a time limit of 0.4 seconds ON and 1.2 seconds OFF, and the inner tank 14 is fixed. In this state, an agitation mode is performed in which the agitating blade 15 is dried while being normally reversed at a rotation speed of 160 r / min. In the stirring mode, only the stirring blade 15 is rotated and the inner tank 14 is not rotated, so that the rotation can be started faster than the tank rotating stirring mode. For this reason, the top and bottom of clothes can be exchanged strongly, and since warm air can be applied evenly, drying can be completed quickly.
[0027]
Then, the heater 31 is turned off, and a blowing process for driving the drying fan 30 and the cooling fan 36 is performed to cool down the clothes, and then the entire drying process is terminated.
[0028]
As described above, according to the present embodiment, the control means 38 performs the tank rotation stirring mode in which the inner tank 14 and the stirring blade 15 are synchronously rotated in the normal rotation in the drying process, so that the stirring blade is rotated by centrifugal force. 15, since the clothing bounced up in the outer peripheral direction contacts the inner wall side surface of the inner tub 14 and eliminates the difference in rotation speed between the garment and the inner tub 14 and can eliminate friction, Can suppress twisting and entanglement, suppress the generation of wrinkles, and dry evenly. Further, the control means 38 performs drying mainly in the tank rotation mode in which the clothes are not moved at all in the initial drying stage where the moisture content is easy to see, so that the clothes can be dried without causing any twist or entanglement of the clothes. As the drying rate becomes higher and the clothes become harder to entangle, the tank rotation stirring mode gradually shifts to the main process, and while changing the clothes up and down, drying and suppressing twisting and entanglement of the clothes, At the stage of drying, the agitation mode, which can change the top and bottom of the clothes more strongly, shifts to the main process, so that it is dried evenly by applying warm air, thus suppressing the generation of wrinkles Can be dried. In addition, since the control means 38 applies a brake to the motor 20 at the time of forward / reverse switching in the tank rotation stirring mode, the inertial rotation of the inner tank after the forward rotation can be quickly stopped and reversed immediately thereafter. it can. For this reason, the frequency | count of changing clothes up and down can be increased, and it can dry uniformly. Further, since the inner wall side surface of the inner tub 14 is tapered, when the clothes splashed in the outer circumferential direction of the stirring blade 15 by the centrifugal force come into contact with the inner wall side surface of the inner tub 14 in the tank rotation stirring mode, Since it is lifted further upward by the side surface of the inner wall 14, the clothes can be exchanged larger up and down and can be dried evenly.
[0029]
In this embodiment, the driving means having the speed reduction mechanism is used, but the speed reduction mechanism may not be provided, and the driving means for directly transmitting the rotation of the motor 20 to the stirring blade 15 may be used. In addition, the control means 38, in the drying process, each mode of a tank rotation stirring mode, a tank rotation mode for drying while rotating the inner tank 14 in one direction, and a stirring mode for rotating only the stirring blade 15 to dry. However, in addition to the tank rotation stirring mode, at least one other mode may be combined.
[0030]
(Example 2)
Next, Embodiment 2 of the present invention will be described with reference to FIG. The inner tub 14 is provided with a step 40 for supporting clothing at a substantially central portion in the height direction of the side surface of the inner wall, and the step 40 is provided with a plurality of protrusions 41 for catching the clothing. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0031]
In the tank rotation agitation mode, the clothing splashed in the outer circumferential direction of the agitating blade 15 by the centrifugal force is caught by the protrusion 41 and is put on the step 40 provided on the inner wall side surface of the inner tank 14. For this reason, it is possible to disperse the clothing between the clothing on the stirring blade 15 and the clothing on the step 40, and the compression load due to the weight of the overlapping clothing itself can be reduced. Generation of wrinkles can be suppressed, and since the clothes are supported on the step 40, the clothes are brought to the upper part in the inner tub 14, and the space can be used effectively. For this reason, warm air can be evenly applied to the clothes and can be dried evenly.
[0032]
As described above, according to the present embodiment, in the tank rotation stirring mode, the step 40 for supporting the clothing is provided at the substantially central portion in the height direction on the inner wall side surface of the inner tank 14, so that the outer periphery of the stirring blade 15 is caused by centrifugal force. Since the clothes bounced up in the direction ride on the step 40, the clothes are supported by the two portions of the stirring blade 15 and the step 40, and the compressive load between the clothes can be reduced. Occurrence can be suppressed, and by using the space effectively, warm air can be evenly applied to the clothing, so that it can be dried evenly. Further, since the plurality of protrusions 41 are provided on the step 40 on the inner wall side surface of the inner tub 14, the clothing can be caught on the step, more reliably supporting the clothing, suppressing the generation of wrinkles due to compression, and unevenness. Can be dried.
[0033]
(Example 3)
Next, Embodiment 3 of the present invention will be described with reference to FIG. The inner tub 14 is provided with a tapered step 40 that supports clothing at a substantially central portion in the height direction of the inner wall side surface, and the step 40 is provided with ribs 42 that extend substantially radially. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0034]
In the tank rotation agitation mode, the clothing splashed in the outer peripheral direction of the agitating blade 15 by centrifugal force is caught by the rib 42 and is put on the tapered step 40 provided on the inner wall side surface of the inner tank 14. . When the inner tub 14 and the stirring blade 15 are further rotated synchronously in this state, the rib 42 reliably transmits the rotational force not only to the clothing on the stirring blade 15 but also to the clothing on the step 40. In addition, since the step 40 is formed in a tapered shape, when a centrifugal force is applied to the garment on the step 40, an upward force is applied and the garment can be flipped up. Thereby, clothing can be changed greatly and it can dry uniformly.
[0035]
As described above, according to the present embodiment, in the tank rotation stirring mode, the ribs 42 extending substantially radially are provided on the step 40 on the inner wall side surface of the inner tank 14. The rotatory force can be transmitted strongly to the clothes supported on the clothes, and the clothes can be largely replaced, and can be dried evenly. Further, since the step 40 on the side surface of the inner wall of the inner tub 14 is tapered, the clothing supported on the step 40 can be flipped up like the clothing on the stirring blade 15, and the clothing can be replaced more greatly. Can be dried evenly.
[0036]
【The invention's effect】
As described above, according to the washing and drying machine of the present invention, the outer tub elastically suspended in the housing, the inner tub having a rotation center axis in a substantially vertical direction and rotatably supported in the outer tub. A stirring blade provided rotatably at the inner bottom of the inner tank; a motor provided at the bottom of the outer tank; drive means for transmitting the rotation of the motor to the inner tank and the stirring blade; A heating means for heating the air blown by the blowing means, and a control means for controlling the operation of the motor, driving means, blowing means, and heating means, A hollow dewatering shaft connected to the inner tub, a washing shaft disposed in the hollow portion of the dewatering shaft and connected to the agitating blade, and an upper and a lower for switching the rotation of the motor to the dehydrating shaft. It has a movable clutch plate, and the control means is in the drying process. A tank rotation stirring mode in which the inner tank and the stirring blade are synchronized and rotated while being rotated in the normal direction, and a tank that is dried while the inner tank and the stirring blade are synchronized and rotated in one direction. A rotation mode and a stirring mode in which only the stirring blade is rotated to dry, and drying is performed in the tank rotation mode in the initial stage of drying, and the process proceeds to the tank rotation stirring mode as the drying progresses. Since the transition to the agitation mode was made at the stage of drying, fine control of moving the clothes appropriately according to the moisture content of the clothes during the drying process can be achieved, and the generation of wrinkles can be suppressed and dried uniformly. it can.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a washing / drying machine in the tank rotation mode and the tank rotation stirring mode of Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the washing / drying machine in the stirring mode. Sectional view of the washing and drying machine in FIG. 4 [FIG. 4] Sectional view of the washing and drying machine in Example 3 of the present invention [Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Housing | casing 13 Outer tank 14 Inner tank 15 Stirring blade 20 Motor 30 Blower for drying (blower means)
31 Heater (heating means)
38 control means 40 steps 41 protrusion 42 rib

Claims (1)

An outer tub elastically suspended in the housing, an inner tub having a rotation center axis in a substantially vertical direction and rotatably supported in the outer tub, and an agitation provided rotatably at the inner bottom of the inner tub and wings, a motor provided in the bottom of the outer tub, and a drive means for transmitting rotation of the motor to the inner tub, and a stirring blade, a blowing means for aeolian into said tank, being blown by the air blowing means Heating means for heating the air to be heated, and control means for controlling the operation of the motor, the driving means, the air blowing means, and the heating means, and the driving means includes a hollow dewatering shaft connected to the inner tank, A washing shaft disposed in a hollow portion of the dewatering shaft and connected to the stirring blade; and a clutch plate movable up and down to switch the rotation of the motor between transmission and non-transmission to the dewatering shaft; the drying step, to synchronize the stirring blade and the inner tank A tank rotating stirring mode for drying while rolling is reversed, and the tank rotation mode for drying while rotating the inner tub in one direction by synchronizing the stirring blade and the inner tub, and dried by rotating only the stirring blade In the initial stage of drying, drying is performed in the tank rotation mode, and as the drying progresses, the process proceeds to the tank rotation stirring mode, and further, the process proceeds to the stirring mode in the final stage of drying. the washing and drying machine.

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