JP3424650B2 - Washing and drying machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washer / dryer having a step of drying warm laundry by blowing warm air into an inner tub for containing the laundry.

[0002]

2. Description of the Related Art In order to make home washing work more automatic, a washing and drying machine which can carry out washing and drying without a hand has been demanded, and a drum type washing and drying machine has been put into practical use. ing. However, the drum type washer / dryer grown in Europe is difficult to take root in Japan, where the climate such as buildings and washing habits is different. A washing and drying machine based on a fully automatic washing machine with a structure in which the inner tub rotates around a vertical axis seems to be suitable for a washing and drying machine that suits the Japanese climate.
The inventors have proposed a washing and drying machine based on a fully automatic washing machine as shown in FIG. 6 based on such an idea. The configuration will be described below.

As shown in FIG. 6, a housing 1 has an outer tub 3 elastically suspended therein by a plurality of suspensions 2.
Is provided, and the vibration during dehydration is absorbed by the suspension 2. Inside the outer tub 3, an inner tub 4 for accommodating laundry and an object to be dried is rotatably arranged around a washing / dehydrating shaft 5 having a hollow double structure, and the inner tub 4 is provided at the inner bottom of the inner tub 4. A rotary blade 6 that stirs laundry or an object to be dried is rotatably arranged.

Further, a large number of small holes (not shown) are provided on the inner peripheral wall of the inner tank 4, and a fluid balancer 7 is provided above. By making the shape of the rotary blade 6 into a pot shape with the outer periphery being an inclined surface, it is possible to easily lift the object to be dried upward along the inclined surface by the centrifugal force due to the rotation of the rotary blade 6 in the drying process. There is.

The motor 8 is attached to the bottom of the outer tub 3, and through the washing / dehydrating shaft 5 and the clutch 9 that switches the transmission of the rotational force to the washing / dehydrating shaft 5 during washing or dehydration, the inner tub 4 or the rotor blades 6 are provided. Connected to. The rotary blade 6 has a substantially pot-like shape having an inclined surface 10 on the outer peripheral portion, and forms a stirring protrusion 11.

The heat exchanger 12 dehumidifies the circulated moist hot air. One end of the heat exchanger 12 is connected to the lower portion of the outer tub 3 through the circulation path switching valve 13 and the expandable lower bellows-shaped hose 14, and the other. The end is connected to one end of the drying blower 15. The other end of the drying blower 15 is connected to a warm air supply passage 17 having a heater 16 as a heating means, and an upper bellows-shaped hose 18 is connected.
Through which the inner tank 4 is connected and circulated. The drying blower 15 and the heater 16 constitute a warm air blower.

The outer tub 3 is provided with an outer tub cover 19 which covers the upper surface of the outer tub 3 in an airtight manner, and the outer tub cover 19 is provided with a hot air blowout hole 20 from a retractable upper bellows-shaped hose 18. It is open. An inner lid 21 is provided on the outer tub cover 19 so as to be openable and closable so that clothes can be taken in and out.

The casing cover 22 covers the upper portion of the casing 1, has an opening / closing lid 23 that can be freely opened and closed, is provided with operation display means 24, and is provided with a water supply valve 25 for supplying water to the inner tank 4. A drain valve 26 for draining water into the outer tub 3 is provided at the bottom of the outer tub 3. The cooling blower 27 is attached to the side surface of the housing 1, and the outer tub 3 inside the housing 1 and the heat exchanger 12 are installed.
It is configured so that air can be blown to cool such items.

The control device 28 includes a motor 8, a clutch 9,
Circulation path switching valve 13, blower 15 for drying, heater 1
6, the operation of the water supply valve 25, the drainage valve 26, the cooling blower 27, etc. is controlled to control each process of washing, rinsing, dehydrating, and drying.

The operation of the above configuration will be described. In the washing process, the opening / closing lid 23 and the inner lid 21 are opened, laundry is put into the inner tub 4, and when the operation is started, the water supply valve 25 is opened to supply water to a predetermined water level, and then the motor 8 is driven. At this time, the clutch 9 of the transmission mechanism unit transmits the power of the motor 8 to the rotating blade 6 via the washing shaft, and the rotating blade 6 rotates, so that the laundry is caught on the stirring protrusion 11 of the rotating blade 6. , Pulled into the center. The laundry in the central lower layer portion of the inner tub 4 is pushed up to the upper layer portion of the inner tub 4 by the drawn laundry. In this way, the laundry in the inner tub 4 is agitated, and is performed by the water force and the mechanical force acting by contact between the laundry or the inner wall of the inner tub 4 or the contact with the rotary blade 6.

In the dehydration step, after the washing is completed, the drain valve 26 is opened to drain the water in the inner tub 4, and then the clutch 9 of the transmission mechanism is switched to the dehydration side so that the power of the motor 8 is passed through the dehydration shaft. The water is separated from the laundry by transmitting it to the inner tub 4 and rotating it to give a centrifugal force to the laundry.
When the dehydration process ends, the drying process continues.

In the drying process, the clutch 9 is switched to the washing side and the motor 8 is driven to transmit the rotary blade 6 to the rotary blade 6.
By rapidly reversing and reversing, the laundry attached to the inner wall of the inner tub 4 is peeled off after dehydration. Next, the drain valve 26
And the circulation path switching valve 13 is opened. And rotor 6
While the laundry is hooked and stirred by the forward and reverse directions of the stirring projection 11, the warm air is blown to the warm air ejection hole 20 by the warm air blowing means composed of the drying blower 15 and the heater 16. The warm air blown into the inner tank 4 from the warm air outlet 20 is
After evaporating water from the laundry, the water flows from the inner tub 4 to the inner side of the outer tub 3, and then passes through the lower bellows-shaped hose 14 to reach the heat exchanger 12.

When hot air that has deprived the laundry of moisture and contains moisture is passing through the inner wall of the outer tub 3 and the inside of the heat exchanger 12, the external air from the cooling blower 27 installed on the side surface of the housing 1 The inflow of water causes the outer tub 3 and the outer wall of the heat exchanger 12 to be cooled, and dew condensation of moisture occurs inside, and the moist warm air is dehumidified and returns to the drying blower 15. By circulating hot air in this circulation path, the object to be dried in the inner tank 4 can be dried.

When the laundry is put into the washer / dryer in this way, the rest of the laundry is automatically carried out until the drying is completed, so it is only necessary to take it out and fold it, which is very convenient. Also,
Since it is a washing and drying machine based on a fully automatic washing machine, it fits the Japanese house structure and also the washing habits of the Japanese.
It is very easy to use.

[0015]

However, the above-mentioned washer / dryer has a problem that it requires about 3 kWh of electric power for one drying, which is difficult to use each time due to running cost. On the contrary, when dried without dehydration process, dehydrated wrinkles remain, and when it takes a long time to dry, such as indoor drying, a moist and slimy rag gives off a rotten odor ( There was a problem that it smelled like a rag.

The present invention solves the above problems by adding a heat amount and agitation to the dehydrated laundry to the extent that the wrinkles due to dehydration are extended to reduce the dehydrated wrinkles and save the labor of extending the wrinkles when dried. , The purpose is to reduce the generation of dust odor.

[0017]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a vertical shaft for an inner tub for accommodating a laundry, which has an opening at an upper part in an outer tub elastically suspended in a casing. The rotor is rotatably supported around the inner tank, the rotor is rotatably provided on the inner bottom of the inner tank, the control means drives the inner tank or the rotor, the air blowing means blows the air into the inner tank, and the air is blown by the air blowing means. The operation of heating means for heating the air to be controlled is controlled to control each process of washing, rinsing, dehydration and drying, and the process is configured to proceed to the drying process after the completion of the dehydration process or from the middle of the dehydration process. Dehydrated into laundry for a specified time after entering the process
After addition stir the degree of heat stretch the wrinkles by the washing and drying course ended, provided at least one, predetermined
The time depends on the laundry amount detection result, and
It is about 10% of the time required for completion .

[0018] Thus, by adding heat and stirring to the extent that the wrinkles due to dehydration are extended to the laundry that has been dehydrated,
The dehydration wrinkles can be reduced, the work of wrinkle extension when drying can be omitted, and the generation of dust odor can be reduced.

[0019]

The invention according to claim 1 of the present invention comprises an outer tub elastically suspended in a housing, and an opening in the upper part of the outer tub, which is rotatable about a vertical axis. An inner tub for supporting laundry therein, which houses laundry, a rotary blade rotatably provided at an inner bottom portion of the inner tub, a driving means for driving the inner tub or the rotary blade, and a blowing means for blowing air into the inner tub. A heating means for heating the air blown by the blower means, a notification means for notifying the end of the stroke, a cloth amount detecting means for detecting the amount of laundry, the driving means, the blowing means, the heating means, etc. And a control means for controlling each process of washing, rinsing, dehydration, and drying, and is configured to proceed to the drying process after the completion of the dehydration process or from the middle of the dehydration process. Wrinkles due to dehydration on laundry for a predetermined time after entering
After addition stir the degree of heat stretch, a washing and drying course ended, provided at least one, wherein the predetermined time between the laundry weight
When it takes to finish drying the laundry based on the detection result
Is obtained by 10% approximately between, when passed about 10 percent of the time required for completion of drying since the beginning of the drying cycle, the laundry this <br/> and hot air are added et while being agitated by a rotating blade As a result, the fibers of the laundry can be stretched to reduce wrinkles due to dehydration, and it is possible to save the trouble of stretching wrinkles when drying.In this state, wrinkles do not shrink by sun drying or ventilation drying. It can be finished without sticking too much, and since the temperature of the laundry has reached the specified temperature, it is sanitized, and it is hygienic and does not generate a rag odor even if it is dried indoors. Since this effect can be obtained at 10%, it is possible to easily carry out this course every washing.

According to a second aspect of the present invention, in the above-mentioned first aspect of the invention, the control means has an amount of heat enough to extend wrinkles due to dehydration in the laundry for a predetermined time after entering the drying process.
After adding and stirring, the blowing agitation stroke is performed for a predetermined period of time, which has to be terminated, by cooling and blowing stirring, even delayed retrieve washing濯物, fibers of the laundry It is possible to maintain the state where wrinkles have disappeared as a result of heating and stirring.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

(Embodiment 1) As shown in FIGS. 1 and 2, a control device 29 has a control means 30 composed of a microcomputer, and drives a motor (drive means) 8 via a motor drive circuit 31. Then
The inner tank 4 or the rotary blades 6 are driven via the clutch 9.
Further, the control unit 30 includes a circulation path switching valve 13, a drying blower (blowing unit) 15, a heater (heating unit) 16, a water supply valve 25, a drain valve 26, a cooling blower 27, etc. via the power switching unit 32. Control the action of, wash,
Control each process of rinsing, dehydration and drying.

The operation display means 33 accepts inputs such as the setting of a driving course and the start of driving, and the control means 3
In addition to inputting 0, necessary information is displayed and notified to the user by a command from the control means 30. Notification means 34
Informs the user of the state by sound according to an instruction from the control means 30 when the course ends or an abnormality occurs.

The storage means 35 stores data necessary for sequential control by the control means 30 and a washing sequence. The rotation speed detection means 36 detects the rotor position and the rotation speed of the motor 8 based on the signal from the motor 8. The cloth amount detecting means 37 detects the cloth amount based on the data of the rotation speed detecting means 36 and inputs it to the control means 30. The water level detection means 38 detects the water level of the outer tub 3 and inputs it to the control means 30.

The power supply circuit 39 converts the voltage of the commercial power supply 40 into direct current and supplies direct current power to the motor drive circuit 31 and the like. 41 is a power switch.

FIG. 3 shows a part of the operation panel of the operation display means 33. By pressing the power key 42, the power switch 41 is closed and the power is turned on, the operation display means 33 is in an operating state, and all keys are ready for reception. The start key 43 is a key for executing a washing / drying sequence. When this key is pressed, washing / rinsing / dewatering is performed by the default "Centrifugal entrustment", and the "Wrinkle removal course" is executed for drying. finish. The dry key 44 is for selecting a dry course, and the wash key 45 is for selecting a wash course. Other configurations are the same as the conventional example.

The operation from the washing to the drying process in the above structure will be described. When the power supply key 42 of the operation display means 33 is pressed to activate the control device 29 and the operation display means 33, the washing course displayed on the washing key 45 provided on the operation panel of the operation display means 33 is initialized. The "remove centrifugal force" lamp is turned on, and the drying course displayed above the drying key 44 is such that the "wrinkle removing course" lamp that is initially set when the power is turned on is turned on.

The user can select a predetermined course with the wash key 45 and the dry key 44, but since the most frequently used course is set as the initial setting, the user almost touches the wash key 45 and the dry key 44. No need. here,
With the initial settings, the washing process and the drying process will be performed.

Next, when the laundry is put into the inner tub 4 and the start key 43 is pressed, the motor 8 is rotated right / stopped / counterclockwise / stopped via the motor drive circuit 31 according to a command from the control means 30. Then, the rotary blade 6 is reversely driven a predetermined number of times.
Since the laundry is placed on the rotary wing 6, the rotating state changes depending on the amount of the laundry. This rotation state is detected by the rotation speed detection means 36, and the cloth amount detection means 37 detects the amount of laundry based on the amount of change and the like, and inputs it to the control means 30.

The control means 30 controls the water supply valve 25 through the power switching means 32 based on the inputted cloth amount.
Is driven to supply the amount of water corresponding to the amount of laundry to the inner tub 4, and at the same time, it is determined whether or not to proceed to the drying process based on the detected amount of laundry.

The "wrinkle removal course" initially set this time is up to 80% of the washable capacity "wrinkle removal course"
If it exceeds 80%, the shift to the "wrinkle removing course" is prohibited, and the series of sequence execution is ended when the dehydration process is completed.

That is, for washing using the rotary blades 6, the rotary blades 6 and the motor 8 are configured so that they can be agitated even if the inner tub 4 is full of laundry in the presence of washing liquid. However, since there is no play water in the drying process, when trying to loosen the lump of laundry with the rotary blade 6, a large force is required, and the rotary blade 6 and the motor 8 configured for washing are overwhelmed. It will damage the laundry. In addition, the laundry is not switched up and down in the inner tub 4, and the warm air is not evenly applied to the laundry.

In order to prevent such problems from occurring and to economically provide a washer / dryer, the stirring limit at the time of drying was experimentally determined to be about 80% of the washing capacity.
80% of a washing and drying machine with a rated washing capacity of 8 kg
Wrinkles can be removed up to 6.4 kg. This time, inner tank 4
Assuming that the laundry put in 4 is 4 kg, when the water supply corresponding to 4 kg is completed, the process proceeds to the next washing step.

If the laundry exceeds 80% and is 7 kg, the control means issues a command to prohibit proceeding to the "wrinkle removing course", and the informing means 34 and the operation display means 33
Notify the user to that effect. Therefore, in this case, wash /
The rinsing / dehydration process is executed and the process is completed.

Next, when washing 4 kg of laundry, the inner tub 4 is intermittently driven by the motor 8 at a medium speed to start centrifugal washing. When the washing is completed, the drain valve 26 is opened to drain the washing liquid, and the motor 8 is driven again to drive the inner tank 4
Rotate at high speed to enter intermediate dehydration. After dehydration for a predetermined time, the water supply valve 25 is driven again to supply water, and the inner tank 4 is intermittently driven at a medium speed similarly to washing to start rinsing. After driving for a predetermined period of time, drainage, intermediate dehydration, water supply, intermittent driving of the inner tank 4 and second rinse are started. When the intermittent driving by the medium speed rotation of the inner tank 4 for the second rinse elapses for a predetermined time, the water is drained and the final dehydration is started. The final dehydration is longer than the intermediate dehydration so that the laundry can dry quickly and the laundry can dry quickly. When the final dehydration is completed, a series of washing steps are completed and the drying step is started.

In the drying process, the control means 30 switches the clutch 9 to the washing side to drive the motor 8 and transmit the same to the rotary blades 6, thereby rapidly rotating the rotary blades 6 forward and reverse.
After dehydration, the laundry attached to the inner wall of the inner tub 4 is peeled off. Next, the drain valve 26 is closed and the circulation path switching valve 13 is closed.
open.

Then, the rotary blades 6 are rotated in the normal direction and inverted, and the laundry is hooked by the agitating protrusions 11 to agitate, while warm air is warmed by the warm air blowing means composed of the drying blower 15 and the heater 16. It is sent to the wind blow hole 20. The hot air blown into the inner tub 4 from the hot air outlet 20 evaporates moisture from the laundry, then flows from the inner tub 4 to the inside of the outer tub 3, and then passes through the lower bellows-shaped hose 14. , To the heat exchanger 12.

When the warm air that has deprived the laundry of moisture and contains moisture passes through the inner wall of the outer tub 3 and the heat exchanger 12, the external air from the cooling blower 27 installed on the side surface of the housing 1 The inflow of water causes the outer tub 3 and the outer wall of the heat exchanger 12 to be cooled, and dew condensation of moisture occurs inside, and the moist warm air is dehumidified and returns to the drying blower 15. By circulating hot air in this circulation path, the laundry in the inner tub 4 can be dried.

Since the drying process of the 4 kg laundry this time is the initially set "wrinkle removing course", the drying process is not executed until the drying of the laundry is completed.
When the wrinkle is removed, the user is notified and the process ends.

By the way, in order to remove the wrinkles of the dehydrated laundry, it is possible to stir it with the rotating blades 6 while applying heat to the dehydrated and solidified laundry. The inventors have derived from the experiment that the wrinkles can be sufficiently removed by executing the drying process for about 15 to 20 minutes after entering the drying process. This time naturally depends on the amount of laundry and the heating capacity of the washer / dryer.

It is important to match the amount of heat applied to the laundry with the amount of agitation, and the temperature is raised while applying heat to the laundry until the temperature of the laundry reaches 50 ° C-60 ° C and 10 minutes- Good results are obtained when stirring for about 20 minutes. Experimental data on the elapsed time from the start of the drying process and the temperature rise are shown in FIGS. 4 and 5.

FIG. 4 shows the case where the laundry is 4 kg.
The curve a is the temperature of the hot air outlet 20, the curve b is the temperature in the lower bellows hose 14, and the curve c is the estimated temperature of the laundry. FIG. 5 shows the case where the laundry has 6 kg, the curve d is the temperature of the hot air outlet 20, the curve e is the temperature in the lower bellows hose 14, and the curve f is the estimated temperature of the laundry. From this figure, the time when the laundry reaches 55 ° C. is 17 minutes for 4 kg of laundry and 24 minutes for 6 kg of laundry.

When this time was examined in various cases, it was found that it was about 10% of the time required to completely dry the laundry. Therefore, the inventors have found that the time required to completely dry laundry is
If the performance of the washer / dryer is known, it can be calculated from the amount of laundry, so the drying time is calculated based on the amount of laundry detected by the cloth amount detection means 37 before starting washing, and about 10% thereof is calculated. Configured to run a "wrinkle removal course" at

When the laundry is taken out and dried in the sun after the "wrinkle removing course" is performed in this manner, wrinkles are extremely reduced, and a blended shirt can be worn without ironing. Ironing is very easy even with a 100% cotton shirt. Also, skin shirts are soft and comfortable to the touch, and the sun drying time is greatly shortened, which is very helpful in difficult times such as winter.

Since such an extremely large effect can be obtained with about 10% of the electric power required for completely drying, even a person who does not have enough power to dry can comfortably take this course every time. Can be used. Therefore, the inventors set a "wrinkle removing course" as an initial setting course when the power is turned on to improve usability.

It should be noted that, if the product is dried immediately after the "wrinkle removing course" is executed, the great effect can be obtained as described above. However, if the user is left as it is for a long time after the "wrinkle removing course" is executed, Since the temperature drops in the abandoned state, the shape of the fiber is fixed in the abandoned state, which causes new wrinkles.

In the present invention, in order to prevent wrinkling even in such a case, after the "wrinkle removing course" is finished, the fibers are cooled with stirring by blowing cool air so that a specific shape is not left on the fibers. By carrying out blast stirring for a predetermined time, the fibers regain their original hardness and new wrinkles do not form.

By the cold air agitation, even if the energy consumption is small enough to drive the motor 8, the drying is greatly promoted by the amount of heat given before that.

(Embodiment 2) The control means 30 shown in FIG. 1 informs and terminates when the temperature rise value in the inner tank 4 reaches a predetermined value, for example, about 30 deg after entering the drying process. I am configuring. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described. In Example 1 above, based on the result of the cloth amount detection before the washing process,
Although the timing of ending the "wrinkle removing course" after entering the drying process was determined, in the present embodiment, the ending timing is set when the temperature in the inner tub 4, that is, the temperature of the laundry increases by about 30 deg. I am trying.

The time required to rise by 30 deg after entering the drying process is 16 minutes when drying 4 kg in FIG. 4 and 6 kg in FIG.
The time required for drying was 22 minutes, which is almost the same as 10% of the time required for complete drying in Example 1. That is, even when the cloth amount cannot be detected, the same effect as that of the above-described first embodiment can be obtained if the end timing of the “wrinkle removing course” is determined by the temperature increase value.

In the present embodiment, when the "wrinkle removing course" is selected, the timing for ending the "wrinkle removing course" after entering the drying step is determined based on the cloth amount when the cloth amount detecting step is performed. However, when starting from dehydration without the cloth amount detection process, the temperature is increased by 30 deg. However, "wrinkle removing course"
All timings for termination may be determined based on the temperature rise value of 30 deg.

Since the end of the "wrinkle removing course" can be determined by the temperature rise value in the inner tank 4 as described above, when the rinsing process or the dehydration process does not include the cloth amount detecting process, or when the cloth amount detecting process is started. You can also deal with washing specific items that cannot be done.

(Embodiment 3) The control means 30 shown in FIG. 1 has a cooling blower until a predetermined time elapses after entering the drying process or until the temperature rise value in the inner tank reaches a predetermined value. It is configured to proceed to the drying process while stopping 27. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described. When entering the drying step, the control means 30 switches the clutch 9 to the washing side to drive the motor 8 and transmit the same to the rotor blades 6, and the rotor blades 6 are rapidly rotated in the forward direction and the reverse direction, so that the inner tank is dehydrated. Peel off the laundry stuck to the inner wall of 4. Next, drain valve 2
6 is closed and the circulation path switching valve 13 is opened. Then, the rotating blades 6 are rotated in the normal direction and inverted, and the laundry is hooked by the agitating protrusions 11 and agitated, while the drying fan 15 and the heater 16 are provided.
The hot air blowing means 20 configured to blow the hot air into the hot air outlet 20
Send to.

The hot air blown into the inner tub 4 from the hot air outlet 20 evaporates the water content from the laundry and then flows from the inner tub 4 to the inside of the outer tub 3 and then the lower bellows-shaped hose 14 It passes through and reaches the heat exchanger 12.

Here, in the drying process, the cooling blower 27 is stopped until a predetermined time elapses after entering the drying process or until the temperature rise value in the inner tank reaches a predetermined value. Although the heat radiated from the outer tub 4 and the heat exchanger 12 is reduced and dehumidification is not performed, the heat from the heater 16 is easily accumulated in the laundry. As a result, the rising characteristics of the temperature rise of the laundry shown in FIGS. 4 and 5 are accelerated, and according to the experimental data, the same predetermined temperature rise value and the time to reach the predetermined temperature are shortened by about 30%.

As described above, according to this embodiment, it is possible to reduce the time required for the drying process by about 30% and save energy by about 30%.

[0059]

As described above, according to the invention described in claim 1 of the present invention, the amount of heat and the agitation for extending the wrinkles due to dehydration are applied to the laundry which has been dehydrated , based on the result of the amount detection.
Approximately 10% of the time required to finish drying the calculated amount of laundry
For less time, add less power consumption , ie dry
With 10% of the electric power required for, dehydration wrinkles can be reduced, the work of wrinkle extension when drying can be omitted, and the generation of dust odor can be reduced.

[0060] According to the invention described in claim 2, the wrinkles caused by dehydration in a predetermined time the laundry after entering as dry <br/>燥行
After addition stir the degree of heat stretching, state by cooling by blowing with 撹 拌, that take out the washing濯物be delayed, the fibers of the laundry is exhausted wrinkles extending in a stirred and heated Can be maintained as is.

[Brief description of drawings]

FIG. 1 is a block circuit diagram of a washer / dryer according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the washing and drying machine.

FIG. 3 is a partially cutaway front view of an operation panel of operation display means of the washing and drying machine.

FIG. 4 is a characteristic diagram showing an example of temperature increase during drying of the washing and drying machine.

FIG. 5 is a characteristic diagram showing another example of temperature increase during drying of the washing and drying machine.

FIG. 6 is a sectional view of a conventional washer / dryer.

[Explanation of symbols]

1 case 3 outer tank 4 inner tank 6 rotors 8 motors (driving means) 15 Blower for drying (Blower means) 16 Heater (heating means) 30 control means 34 Notification means 37 Cloth amount detecting means

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumio Ota 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Masamitsu Mihara 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (56) References JP-A-11-226287 (JP, A) JP-A-58-75595 (JP, A) Jitsukaihei 3-49787 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) D06F 1/00-51/02 D06F 58/00-59/08

Claims (2)

(57) [Claims] 1. An outer tub elastically suspended in a housing, an inner tub having an opening in the upper part of the outer tub and rotatably supported around a vertical axis to accommodate laundry, the inner tub Rotating blades rotatably provided on the inner bottom of the tank, driving means for driving the inner tank or the rotating blades, air blowing means for blowing air into the inner tank, and heating for heating air blown by the air blowing means. Means and
Informing means for informing the end of the process, cloth amount detecting means for detecting the amount of laundry, operation of the driving means, air blowing means, heating means, etc. are controlled to perform each step of washing, rinsing, dehydration, and drying. And a control means for controlling, and configured to proceed to the drying step after the completion of the dehydration or in the middle of the dehydration step, wherein the control means performs dehydration on the laundry for a predetermined time after entering the drying step.
After adding and stirring heat enough to extend the wrinkles with a washing and drying course ended, provided at least one, wherein the predetermined time
During the period, based on the detection result of the amount of cloth, the laundry has finished drying
A washing and drying machine that takes about 10% of the time required for 2. The control means controls the amount of heat and agitation to spread wrinkles due to dehydration on the laundry for a predetermined time after entering the drying process.
The washer / dryer according to claim 1, wherein the air blowing and stirring step is performed for a predetermined time after the addition of the above.