JP2010119647A - Washing/drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve effective heating of laundry and to sufficiently improve washing property of a washing/drying machine which executes heating operations of laundry by a hot air supplying device. <P>SOLUTION: Water discharge (S8) from the inside of a water tank is conducted prior to executing heating operations of laundry (S10-S16) by the hot air supplying device after the washing operation and a dewatering operation (S9) that properly drains water from the laundry is conducted by rotating a rotating tank at a speed lower than or equal to the speed that an outer casing resonates. By this the water content of the laundry at the time of heating operations of laundry can be reduced and the laundry can be effectively heated, thereby the washing property can be sufficiently improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a laundry dryer that performs a laundry warming operation.

2. Description of the Related Art Conventionally, washing machines have been provided with a heater at the bottom of a water tub, and washing is performed by heating the washing water to a predetermined temperature with this heater. According to this, the washing water is heated, so that the detergent is easily dissolved, and the detergent is activated, thereby improving the washing performance.
However, there is a problem that it takes a long time to heat the washing water to the predetermined temperature with the heater, and it takes a long time until the washing is finished. In addition, power consumption is large and uneconomical. There is also a problem that safety measures against leakage of a heater that immerses in the washing water and heats the washing water must be strictly applied.

In contrast, in a washing and drying machine that includes a warm air supply device that supplies warm air to the inside of the aquarium and can dry the laundry, the laundry is accommodated in a rotating tub disposed inside the aquarium, After performing a washing operation of supplying water to the inside of the aquarium and stirring the laundry, draining the water from the inside of the aquarium, and then stirring the laundry, the hot air supply device There is an idea of performing a laundry warming operation in which warm air is supplied to warm the laundry (see, for example, Patent Document 1).
JP 2006-247062 A

According to what was considered as mentioned above, all the problems of washing by heating the washing water to a predetermined temperature with the heater provided at the bottom of the water tank can be solved. In other words, it does not take a long time to heat the washing water to a predetermined temperature with the heater, consumes less power, and must take strict safety measures against leakage of the heater. There is no problem.
However, the warming effect of the laundry is not sufficient, and the washing performance cannot be improved sufficiently.

In addition, after performing the washing operation and the drainage, the laundry tub is rotated, and the laundry is heated to supply warm air to the inside of the tub to heat the laundry. In addition, a rinsing operation of supplying water into the aquarium and stirring the laundry is also performed.
However, the rotation of the rotating tub when the laundry warming operation before the rinsing operation in itself is performed is a low-speed rotation stage up to, for example, 100 [rpm] at the stage where the imbalance detection of the rotating tub is performed. Since there is no stage where dehydration from the article is substantially performed, the moisture content of the laundry is large, and the laundry cannot be effectively heated.

  The present invention has been made in view of the above-described circumstances. Therefore, the object of the present invention is to effectively warm the laundry in the laundry warming operation by the hot air supply device, and It is in providing the washing-drying machine which can fully improve performance.

  In order to achieve the above object, in the washing and drying machine of the present invention, first, an outer box, a water tank disposed inside the outer box, a rotating tank disposed inside the water tank, And a driving device for rotationally driving the rotating tub, a water supply device for supplying water to the inside of the water tub, and a hot air supply device for supplying hot air to the inside of the water tub. And after performing the washing operation of stirring the laundry by supplying water to the inside of the water tank, draining from the inside of the water tank, and rotating the rotating tank below the rotational speed at which the outer box resonates. The dehydration operation for dehydrating from the laundry is performed by rotating at a speed of, and then the laundry is agitated to supply warm air to the inside of the water tub to heat the laundry. A heating operation is performed (invention of claim 1).

  In the washing and drying machine of the present invention, secondly, an outer box, a water tank disposed inside the outer box, a rotating tank disposed inside the water tank, and the rotary tank are driven to rotate. A driving device, a water supply device for supplying water to the inside of the water tank, and a hot air supply device for supplying warm air to the inside of the water tank, storing laundry in the rotating tank, and the interior of the water tank. After performing the washing operation of stirring the laundry by supplying water to the drainage, draining from the inside of the water tub, and performing a dehydration operation of dehydrating the laundry by rotating the rotating tub, A laundry warming operation for supplying warm air to the inside of the water tank to heat the laundry is performed, and then a rinsing operation for supplying water to the water tank and stirring the laundry is performed. (Invention of claim 2).

  According to the first means (invention of claim 1), before the laundry warming operation by the warm air supply device is performed after the washing operation, the water is drained from the inside of the water tank and the rotating tank is removed. Since the dehydration operation is performed to dehydrate the laundry moderately by rotating it at a speed less than the rotational speed at which the box resonates, the water content of the laundry during the warming operation of the laundry can be reduced, and the laundry An object can be effectively heated, and thus the washing performance can be sufficiently improved.

  According to the second means (invention of claim 2), when performing the laundry warming operation by the hot air supply device before the rinsing operation, the dehydrating operation of dehydrating the laundry by rotating the rotating tub. In other words, since the drum is rotated at a speed at which the dehydrating operation for dehydrating the laundry is performed, the moisture content of the laundry during the warming operation of the laundry is also Thus, the laundry can be warmed effectively, and the washing performance can be sufficiently improved.

Hereinafter, a first embodiment (first embodiment) of the present invention will be described with reference to FIGS.
First, FIG. 2 shows the overall structure of the drum type washing machine, and the outer box 1 is an outer shell. A laundry entrance / exit 2 is formed at the center of the front side of the outer box 1 (left side in FIG. 2), and a door 3 for opening and closing the entrance / exit 2 is provided. In addition, an operation panel 4 is provided at the upper part of the front portion of the outer box 1, and an electronic circuit unit 5 is provided on the back side (inside the outer box 1).

A water tank 6 is disposed inside the outer box 1. The aquarium 6 has a horizontal cylindrical shape whose axial direction is front and rear (left and right in FIG. 2). The water tank 6 is inclined upward by a pair of left and right (only one shown) suspensions 7 on the bottom surface of the outer box 1. It is elastically supported.
A motor 8 is attached to the back of the water tank 6. In this case, the motor 8 is composed of, for example, a DC brushless motor, and is an outer rotor type. A rotating shaft 8b attached to the center of the rotor 8a is inserted into the water tank 6 through a bearing bracket 9. ing.

  A drum 10 is disposed inside the water tank 6. This drum 10 also has a horizontal cylindrical shape in which the axial direction is front and rear, and is attached to the tip end portion of the rotating shaft 8b of the motor 8 at the center of the rear portion, so that the drum 10 is inclined upward and coaxial with the water tank 6. I support it. As a result, the drum 10 is rotated by the motor 8, so that the drum 10 is a rotating tank and the motor 8 functions as a drum driving device that rotates the drum 10.

  A large number of small holes 11 (only a part is shown) are formed in the peripheral side part (body part) of the drum 10 and a plurality of baffles 12 for picking up laundry are provided (only one is shown). The drum 10 and the water tub 6 both have openings 13 and 14 on the front surface, and the laundry entrance 2 is connected to the opening 14 of the water tub 6 via an annular bellows 15. . As a result, the laundry entrance / exit 2 is connected to the inside of the drum 10 via the bellows 15, the opening 14 of the water tub 6, and the opening 13 of the drum 10.

  A drain port 16 is formed at the rear of the bottom, which is the lowest part of the water tank 6, and a drain pipe 18 having a drain valve 17 is connected to the drain port 16 in the middle. Further, a base end portion of a circulating water channel 19 is connected to a portion of the drain pipe 18 on the side of the drain port 16 from the drain valve 17, and a filter 20 and a circulation circuit are connected to a middle portion of the circulating water channel 19 in order from the drain pipe 18 side. A pump 21 is provided. Further, the tip of the circulating water channel 19 bypasses the side of the bellows 15 and is connected to a watering nozzle 22 mounted on the upper part of the opening 14 of the water tank 6. Thus, the water in the aquarium 6 is circulated by returning the water from the drain nozzle 16 of the aquarium 6 through the circulation channel 19 (filter 20) to the aquarium 6 by the operation of the circulation pump 21. .

A dehumidifier 23 is also disposed on the back of the water tank 6. The dehumidifier 23 has a hollow shape as a whole, is located on the right side of the motor 8, and communicates with a communication port 23 a provided at a lower portion in an inner lower portion of the water tank 6. Further, a water injector 24 is disposed in the upper part of the dehumidifier 23.
Above the water tank 6, a blower device 25 is disposed on the rear side, and a heating device 26 is disposed on the front side. Among them, the blower 25 has a blower blade 27 inside, and is provided with a motor (not shown in FIG. 2) for rotationally driving the blower blade 27, and the rear portion is dehumidified. It is connected to the upper part of the vessel 23.

On the other hand, the heating device 26 has a hot air generating electric heater 28 inside, and the front portion of the blower device 25 is connected to the rear portion.
Further, an air supply duct 29 is disposed in front of the water tank 6. The air supply duct 29 has a rear end connected to the front of the heating device 26, and the front end faces the inside of the water tank 6 from the upper part of the water tank 6.

In addition, a water supply valve 30, a bath water supply pump 31, and a water supply case 32 are disposed at the top of the outer box 1. Of these, the water supply valve 30 is connected to a water tap (not shown) via a water supply hose (not shown) to the inlet 30a, and on the other hand, one of the two outlets is connected. The water supply case 32 is connected via a hose 33, and the other one is connected to the water injector 24 of the dehumidifier 23 via a connection tube 34.
Accordingly, the water supply valve 30 communicates with the water tank 6 through the water supply case 32, and the water supply device 35 for supplying water into the water tank 6 is constituted by the water supply valve 30 and the water supply case 32.

  The water supply valve 30 also supplies water to the water injector 24. When the air blower 25 and the heating device 26 are operated while supplying water to the water injector 24, the air in the water tank 6 is dehumidified. The inside of 23 is passed from the lower part to the upper part. At this time, the water discharged from the water injector 24 falls in the dehumidifier 23, and the water in the water in the water tank 6 passing through the dehumidifier 23 comes into contact with the descending water to be cooled. It is dehumidified by being condensed.

  The dehumidified air is then sent from the blower device 25 to the heating device 26 and heated to be warmed, and the warm air is returned to the water tank 6 through the air supply duct 29. Thus, a hot air supply device 36 that supplies hot air to the water tank 6 sequentially is configured.

The hot air supplied into the water tank 6 is then supplied into the drum 10 from the small hole 11 of the drum 10. The air supplied into the drum 10 removes moisture from the laundry in the drum 10 in the course of passing through the drum 10, and then comes out of the other small hole 11 of the drum 10 and is again dehumidified from the water tank 6. The passage from the bottom to the top in 23 is repeated and circulated.
The water supply case 32 has a detergent storage part (not shown) inside, and the inside is communicated with the inside of the water tank 6 from the upper part of the water tank 6 via a connection hose 37.

  FIG. 3 shows the control device 38. The control device 38 is composed of, for example, a microcomputer and is included in the electronic circuit unit 5 and functions as control means for controlling the overall operation of the drum type washing and drying machine. Various operation signals are input to the control device 38 from an operation input unit 39 including various operation switches of the operation panel 4. An operation input unit 39 is also included in the electronic circuit unit 5, and outputs various operation signals corresponding to user operations on various switches of the operation panel 4.

  In addition, the control device 38 receives a water level detection signal from a water level sensor 40 provided to detect the water level in the water tank 6, and a rotation sensor 41 provided to detect the rotation of the motor 8. The rotation detection signal is input from. The control device 38 is configured to calculate the number of rotations of the motor 8 and thus the number of rotations of the drum 10 by the time required for detection based on the rotation detection signal from the rotation sensor 41, thereby It also functions as a rotational speed detecting means for detecting the rotational speed.

  Then, the control device 38 gives a display control signal to the display unit 42 including various indicators existing in the operation panel 4 based on those inputs and a previously stored control program, and also supplies the water supply valve 30 and the motor. 8. A drive control signal is given to the motor 43 of the blower 25, the electric heater 28 for generating hot air of the heater 26, the circulation pump 21, and the drive circuit 44 for driving the drain valve 17.

Next, the operation of the above configuration will be described.
FIG. 1 shows the operation control content of the control device 38 only before the rinsing process, which is based on the user's operation on the operation panel 4, and when the user performs an operation to start driving, The control device 38 starts (starts) the operation, and first detects the amount of laundry (step S1). The detection of the amount of laundry is performed by rotating the drum 10 to a predetermined rotational speed, the time required for the rotation, and then stopping the driving of the drum 10 by the motor 8 and rotating the drum 10 by inertia, thereby rotating the drum 10. The amount of laundry is detected by the rotational load of the motor 8 from the time required for the speed to drop to a predetermined rotational speed. Accordingly, at this time, the rotation sensor 41 and the control device 38 function as laundry amount detection means.

Thereafter, the water supply case 30 side of the water supply valve 30 is opened to start water supply (main water supply) into the water tank 6 (step S2). At this time, the detergent previously stored in the detergent storage part of the water supply case 32 is added together with the water supply.
In this state, next, it is determined from the detection result of the water level sensor 40 whether or not the water level in the water tank 6 has reached a predetermined water level (step S3). The predetermined water level here is a water level set based on the detection result of the amount of laundry. If it is determined in this step S3 that it has not reached (NO), step S3 is repeated, and if it is determined that it has reached (YES), the water supply valve 30 is closed to supply water into the water tank 6 (main (Water supply) is stopped (step S4).

  Next, the washing process is started, and the washing operation is started (step S5). This washing operation is performed by reversing the drum 10 in the normal direction, whereby the laundry previously stored in the drum 10 is lifted and then dropped (tumbling) to be washed. At this time, the circulation pump 21 is operated to circulate the water in the water tank 6 by sprinkling the water from the water spray nozzle 22 through the circulation water channel 19 into the water tank 6.

Next, in this state, it is determined whether or not a predetermined time has been reached (step S6). The predetermined time here is also a time set based on the detection result of the laundry amount. If it is determined in step S6 that it has not been reached (NO), step S6 is repeated, and if it is determined that it has been reached (YES), the washing operation is stopped (step S7).
Thereafter, drainage is performed (step S8). This drainage is performed in such a manner that the water in the water tank 6 (in the drum 10) is discharged from the water outlet 16 of the water tank 6 through the drain pipe 18 (the drain valve 17) by opening the drain valve 17.

  Thereafter, a dehydration (intermediate dehydration) operation is performed (step S9). The dehydration operation is to perform centrifugal dehydration of the laundry in the drum 10 by rotating the drum 10 in one direction while the drain valve 17 is opened. In this case, the rotation speed of the drum 10 is as follows: The speed is lower than the rotational speed at which the outer casing 1 resonates, for example, about 400 [rpm], and the dehydration rate is higher than the full-scale dewatering operation in which the drum 10 is rotated at a speed close to 1000 [rpm] or higher. Is an intermediate dehydration operation of about 40 to 50%.

  Thereafter, the air blower 25 of the hot air supply device 36 is activated (step S10), the heating device 26 is subsequently activated (step S11), and the dehumidifier 23 (water injector 24) side of the water supply valve 30 is opened. (Step S12). Thus, the air in the water tank 6 is dehumidified by the dehumidifier 23 and warmed by the heating device 26, and the warm air is recirculated into the water tank 6 and supplied. At this time, the drum 10 is rotated, for example, at the above-described tumbling speed (step S13), thereby stirring the laundry. As a result, the laundry in the drum 10 is heated. Accordingly, the operation here is a laundry heating operation.

Thereafter, it is determined whether or not a predetermined time has been reached (step S14). The predetermined time here is also a time set based on the detection result of the laundry amount, and in this case, for example, 15 minutes. If it is determined in step S14 that it has not been reached (NO), step S14 is repeated. If it is determined that it has been reached (YES), the operation of the blower 25 and the heating device 26 is stopped, and the water supply valve 30 is also stopped. Is closed (step S15), and further, the rotation of the drum 10 is stopped (step S16), and the laundry warming operation is stopped.
After that, the laundry is rinsed.

  As described above, in the above configuration, the laundry warming operation by the warm air supply device 36 is executed after the washing operation, whereby the detergent remaining in the laundry is activated and the effect of the detergent is enhanced. By raising the dirt that has not been removed by the washing operation with the water containing the detergent from the laundry, the detergent can be removed and the dirt can be removed well in the next rinsing process, thereby enhancing the washing effect. In addition, it does not take a long time to heat the washing water to a predetermined temperature with the heater, consumes less power, and must take strict safety measures against leakage of the heater. There is no problem.

In particular, before the laundry warming operation by the hot air supply device 36 is performed, the water is drained from the water tank 6 and the drum 10 is rotated at a speed equal to or lower than the rotational speed at which the outer box 1 resonates. Since the intermediate dehydration operation of dehydrating the laundry by rotating it is performed, the moisture content of the laundry during the laundry warming operation can be reduced and the laundry is effectively warmed. Therefore, the washing performance can be sufficiently improved.
In this case, the intermediate dehydration does not excessively dehydrate the water containing the detergent from the laundry, and is effective in leaving the detergent amount in the laundry moderately and activating it by warming the laundry. It is also what you do.

  4 to 6 show the second and third examples (second and third embodiments) of the present invention. The same or similar parts as those of the first example are shown in FIGS. The same reference numerals are attached and description thereof is omitted, and only different parts are described.

[Second Embodiment]
In the second embodiment shown in FIG. 4, during the operation control content of the control device 38, the washing operation is stopped (step S <b> 101) and drained (step S <b> 102). Next, the heating device 26 is operated (step S104), and the dehumidifier 23 (water injection device 24) side of the water supply valve 30 is opened (step S105). As described above, the air in the water tank 6 is dehumidified by the dehumidifier 23 and warmed by the heating device 26 as described above, and the warm air is recirculated into the water tank 6 and supplied.

At this time, a full-scale dehydration operation is performed to rotate the drum 10 at a speed of, for example, about 1000 [rpm] (step S10). As a result, the laundry in the drum 10 is heated. Therefore, the operation here is also a laundry heating operation.
Thereafter, the laundry heating operation is stopped through steps S107 to S109 similar to steps S14 to S16 of the first embodiment.

  Next, the water supply into the water tank 6 is completed through steps S110 to S112 similar to steps S2 to S4 of the first embodiment, and then the rinsing process is started to start the rinsing operation (step S113). This rinsing operation is performed in the same manner as the washing operation of the first embodiment except that no detergent is used. That is, the laundry in the drum 10 is dropped after the drum 10 is reversed in the normal direction ( Rinse repeatedly (tumbling). At this time, the circulation pump 21 is also operated to circulate the water in the water tank 6 by sprinkling the water from the water spray nozzle 22 through the circulation water channel 19 into the water tank 6.

Thereafter, the rinsing operation and the drainage are finished through steps S114 to S116 similar to steps S6 to S8 of the first embodiment, and then the second full-scale dehydration operation is started (step S117). Next, it is determined whether or not a predetermined time has been reached (step S118). The predetermined time here is also a time set based on the detection result of the laundry amount. If it is determined in step S118 that it has not been reached (NO), step S118 is repeated, and if it is determined that it has been reached (YES), the second dehydrating operation washing operation is stopped (step S119).
Thereafter, after steps S120 to S126 similar to the above steps S110 to S116, drainage is finished from the second rinsing operation, the process proceeds to the final dehydration process, and further proceeds to the drying process.

  As described above, in the second embodiment, when the laundry warming operation is performed by the hot air supply device 36 before the rinse operation (first rinse operation), the drum 10 is rotated to dehydrate the laundry. The dehydrating operation is performed, in other words, the drum 10 is rotated at a speed at which the dehydrating operation for dehydrating the laundry is performed. In this case as well, the laundry during the warming operation of the laundry is performed. Thus, the water content can be reduced, the laundry can be effectively heated, and the washing performance can be sufficiently improved.

In this case, the warming of the laundry causes the fibers of the laundry to swell, thereby facilitating the drainage of the water containing the detergent due to the dehydration operation, and thus the dilution of the detergent in the subsequent rinsing operation is good. It is effective to do.
The second embodiment may be implemented in addition to the first embodiment.

[Third embodiment]
In the third embodiment shown in FIGS. 5 and 6, the hot air supply device 51 is replaced with the hot air supply device 36 using the electric heater 28 of the first embodiment as a heating source, and is of a heat pump type. In detail, the heat pump type hot air supply device 51 is provided with a connection between an air outlet 52 formed at the front upper part of the water tank 6 and an air supply port 53 formed at the upper rear part of the water tank 6. The air duct 54, the connection hose 55, the ventilation case 56, the fan casing 57, the connection hose 58, and the inside of the circulation air passage 60 composed of the air supply duct 59, in particular, inside the ventilation case 56, in order from the air outlet 52 side, An evaporator 61 and a condenser 62 are disposed, and a blower blade 63 is disposed inside the fan casing 57.

  The evaporator 61 and the condenser 62 are composed of a compressor 64 disposed outside the ventilation case 56 and a throttle 65 made of an electronic throttle valve, a capillary tube or the like shown in FIG. The heat pump 67 is connected, and the evaporator 61 performs endothermic cooling and the condenser 62 performs heat radiation heating. The blower blade 63 is rotationally driven by a motor 68 disposed outside the fan casing 57, and the driven blower blade 63 causes the air in the water tank 6 to circulate from the air outlet 52 to the circulation air passage. Circulation through the air supply port 53 through the 60 to the inside of the water tank 6 is performed.

  At this time, by driving the compressor 64, the refrigerant sealed in the refrigeration cycle is compressed by the compressor 64 to become a high-temperature and high-pressure refrigerant, and the high-temperature and high-pressure refrigerant flows into the condenser 62, and the ventilation case Heat exchange with air in 56. As a result, the air in the ventilation case 56 is heated, and conversely, the temperature of the refrigerant is lowered and liquefied. The liquefied refrigerant is then depressurized through the restrictor 65 and then flows into the evaporator 61 to be vaporized. Thereby, the evaporator 61 cools the air in the ventilation case 56. The refrigerant that has passed through the evaporator 61 returns to the compressor 64.

As a result, the air flowing into the circulation air passage 60 from the water tank 6 is cooled and dehumidified by the evaporator 61 in the ventilation case 56 and then heated by the condenser 62 to be warmed. Then, the warm air that has passed through the condenser 62 is supplied back into the water tank 6 and further supplied into the drum 10 from a vent 69 formed in the rear part of the drum 10. Thus, the laundry in the drum 10 is heated. Therefore, the warming operation of the laundry is performed in this way, and the drying is also performed in this way.
In addition, the warm air which heated the laundry in the drum 10 flows out from the drum 10, and flows in into the said circulation air path 60 from the inside of the water tank 6.

Even if the configuration of the washing / drying machine is such that the hot air supply device 51 is of the heat pump type, the same effects as those of the first and second embodiments can be obtained.
In addition, the overall configuration of the washing and drying machine is not limited to the drum type (horizontal axis type), and may be a vertical axis type washing and drying machine having a water tank or a rotating tank in the vertical axis shape. Further, as apparent from FIG. 5 showing the third embodiment, the function of circulating the water in the water tank and the bath water supply pump 31 may not be provided.
In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within a range not departing from the gist.

Flow chart of control contents showing the first embodiment of the present invention Broken side view of the entire washer / dryer Electrical configuration block diagram Flow chart of control contents showing the second embodiment of the present invention. FIG. 2 equivalent view showing a third embodiment of the present invention. Cycle diagram of heat pump

Explanation of symbols

  In the drawings, 1 is an outer box, 6 is a water tank, 8 is a motor (drive device), 10 is a drum (rotary tank), 34 is a water supply device, 36 is a hot air supply device, 38 is a control device (control means), 51 Indicates a hot air supply device.

Claims (2)

An outer box,
A water tank disposed inside the outer box;
A rotating tub disposed inside the aquarium,
A drive device for rotationally driving the rotary tank;
A water supply device for supplying water into the water tank;
A hot air supply device for supplying hot air into the water tank,
The laundry is stored in the inside of the rotating tub, and after performing a washing operation of supplying water to the inside of the water tub and stirring the laundry, draining from the inside of the water tub, The dehydration operation for dehydrating the laundry by rotating at a speed equal to or lower than the rotational speed at which the outer box resonates is performed, and then the warm water is supplied to the inside of the water tank while stirring the laundry. A laundry dryer that performs a laundry warming operation for warming laundry. An outer box,
A water tank disposed inside the outer box;
A rotating tub disposed inside the aquarium,
A drive device for rotationally driving the rotary tank;
A water supply device for supplying water into the water tank;
A hot air supply device for supplying hot air into the water tank,
The laundry is stored in the inside of the rotating tub, and after performing a washing operation of supplying water to the inside of the water tub and stirring the laundry, the water is drained from the inside of the water tub, and the rotating tub is rotated. And performing a dehydration operation for dehydrating the laundry, supplying a warm air to the inside of the water tub to heat the laundry, and then performing an inside of the water tub. A washing / drying machine characterized in that a rinsing operation for agitating the laundry by supplying water is performed.

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