JP6956321B2 - Washing and drying machine - Google Patents

Description

The present disclosure relates to a washer / dryer having rotary wings.

Patent Document 1 discloses a washing machine that rotates a washing tub and a pulsator at the same time. This washing machine rotates a washing tub for accommodating laundry, a pulsator for stirring the laundry, a washing shaft fixed to the pulsator, a dehydration shaft fixed to the bottom of the washing tub, and a washing shaft and a dehydration shaft. It is provided with a drive motor for causing the laundry to be transmitted, a clutch for transmitting or interrupting the transmission of the rotational force of the drive motor to the dehydration shaft, and a drying device for drying the laundry. In this washing machine, the washing input shaft and the dehydration shaft are connected at the time of drying, and the washing tub and the pulsator are rotated at the same time.

Japanese Unexamined Patent Publication No. 2002-58891

The present disclosure provides a washing and drying machine efficiently heated sleeping device.

The washing machine in the present disclosure includes a housing unit, a rotary blade, a rotary drive unit, a warm air blower unit, and a control unit. The accommodating portion has a bottomed cylindrical shape and accommodates laundry. The rotor blades are arranged on the bottom surface inside the accommodating portion and are rotatably provided. The rotary drive unit rotationally drives the accommodating tank and the rotary blades. The warm air blower blows warm air to the accommodating part. The control unit controls the accommodating unit, the rotation driving unit, and the warm air blowing unit to execute the washing step , the drying step, or the heating step. The control unit can perform a course of drying or heating the folded bedding. Further, in the drying process or the heating process in this course, the control unit performs rotary blade operation in which the rotary blades alternately perform forward rotation operation and reverse rotation operation at predetermined intervals, and the rotary blade operation is forward rotation operation and reverse rotation operation. Is reversed an even number of times, and the next rotor operation starts from the rotation in the direction opposite to the rotation direction stopped in the previous rotor operation.

Washing and drying machine according to the present disclosure can be efficiently heated sleeping device.

Schematic diagram of vertical cross section of the washer / dryer according to the first embodiment A block diagram showing a configuration of a control unit of a washer / dryer according to the first embodiment. Flow chart of the heating process of the washer / dryer according to the first embodiment A timing chart showing the relationship between the temperature of the heating process of the washer / dryer and the heater input operation in the first embodiment. A timing chart showing changes in the inner tub rotation speed and the rotor blade rotation speed of the washer / dryer according to the first embodiment. Schematic diagram showing the inside of the inner tub during rotation of the rotary blade of the washer / dryer according to the first embodiment.

Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters and duplicate explanations for substantially the same configuration may be omitted. This is to avoid unnecessary redundancy of the following description and to facilitate the understanding of those skilled in the art.

It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Embodiment 1)
Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 6.

[1-1. composition]
In FIG. 1, the washer / dryer 100 includes a housing 111, an outer tub 112, and an inner tub 115. The outer tank 112 is elastically held in the housing 111. The outer tank 112 has a bottomed cylindrical shape with an open upper surface, and includes an inner tank 115 which is also cylindrical. The inner tank 115 is rotatably installed in the outer tank 112 so that the rotation center axis is in the vertical direction.

The housing 111 has an opening so as to face the openings of the outer tank 112 and the inner tank 115. An outer lid 113 is provided on the upper portion of the housing 111 so as to cover the opening of the housing 111 so as to be openable and closable.

The outer tub cover 114 is provided on the upper part of the outer tub 112 and has an opening facing the opening of the housing 111. The inner lid 116 is arranged on the outer tub cover 114, and is provided so as to be openable and closable so as to cover the opening of the outer tub cover 114. When the inner lid 116 is closed, the outer tub cover 114 and the inner lid 116 substantially seal the upper part of the outer tub 112, so that the airtightness inside the outer tub 112 is increased.

A rotary blade 121 is provided on the inner bottom of the inner tank 115. A stirring protrusion 126 is provided on the upper surface of the rotary blade 121 for stirring and lifting the laundry.

A motor 122 is arranged below the outer tank 112. The motor 122 is connected to the inner tub 115 and the rotary blade 121 via a clutch 123 and a washing 124 / dehydration shaft 124. By switching the clutch 123, the rotational driving force of the motor 122 is transmitted to the washing shaft 124 or both the washing shaft 124 and the dehydration shaft 125. When the rotational driving force is transmitted to the washing shaft 124, the rotary blade 121 rotates. When the rotational driving force is transmitted to both the washing shaft 124 and the dehydration shaft 125, the inner tub 115 and the rotary blade 121 rotate.

A water supply valve 131 for supplying water into the inner tank 115 is provided on the upper part of the housing 111. Further, a drain valve 132 for draining water from the outer tank 112 is provided at the bottom of the outer tank 112.

A heat exchanger 154 is provided inside the housing 111, and a cooling blower 117 is provided on the side surface of the housing 111. When the cooling blower 117 is turned on, the cooling blower 117 takes in outside air, and the outside air cools the air inside the heat exchanger 154.

The washer / dryer 100 is provided with a circulation path including a path for supplying warm air to the inner tub 115 and a path for collecting the air exhausted from the inner tub 115.

The path for supplying warm air to the inner tank 115 is composed of a hot air supply path 144 and an upper hose 151, and is provided at the rear upper portion in the housing 111. Further, a blower 141 and a heater 142 are provided as a warm air generator 140 in the upper rear portion of the housing 111. The blower 141 is connected to one end of the hot air supply path 144. The heater 142 is arranged in the hot air supply path 144 and at a position downstream of the blower 141. Further, a warm air ejection hole 143 for introducing warm air into the inner tank 115 is provided in the upper rear portion of the outer tank 112, and an elastic bellows-shaped upper portion is provided in the upper portion of the warm air ejection hole 143. The upper hose 151 is connected.

The path for recovering the air exhausted from the inner tank 115 includes a lower hose 153 and a heat exchanger 154. An opening is provided in the lower rear portion of the outer tank 112, and an elastic bellows-shaped lower hose 153 is connected to the outer tank 112. The heat exchanger 154 extends vertically upward from below the inside of the housing 111, and connects the lower hose 153 and the blower 141.

Two temperature detection units are arranged on this circulation path. The first temperature detection unit 152 is provided downstream of the warm air generator 140, and the second temperature detection unit 155 is provided in the vicinity of the outer tank 112 of the lower hose 153. The first temperature detection unit 152 detects the temperature of the hot air heated by the heater 142, and the second temperature detection unit 155 detects the temperature of the air exhausted from the outer tank 112.

An operation display unit (not shown) is provided on the rear upper surface of the housing 111. The operation display unit is composed of a liquid crystal display which is a display unit (described later), an operation button which is an operation unit (described later), and the like.

Next, the configuration of the control unit 161 will be described with reference to FIG.

The control unit 161 includes a control unit 162, a power switching unit 166, an operation unit 163, a display unit 164, a storage unit 165, and a cloth amount detection unit 167.

The display unit 164 and the operation unit 163 are provided on the upper surface of the housing 111. The display unit 164 is composed of a liquid crystal display. The operation unit 163 is composed of operation buttons and the like. The control unit 162 is composed of a microcomputer, and is arranged in the front upper part inside the housing 111. The control unit 162 is electrically connected to the operation unit 163 and the display unit 164.

The storage unit 165 is a memory that stores various sequences, and the cloth amount detection unit 167 detects the amount of clothes or bedding contained in the inner tank 115. The control unit 162 controls the power switching unit 166 in cooperation with the storage unit 165. The control unit 162 controls the water supply valve 131, the drain valve 132, the motor 122, and the like via the power switching unit 166. The control unit 162 receives the instruction information input by the user from the operation unit 163, and causes the display unit 164 to display a predetermined display.

Further, the control unit 162 is also connected to the first temperature detection unit 152 and the second temperature detection unit 155. Each detection unit inputs the detected signal to the control unit 162. The control unit 162 processes the input signal as temperature information.

[1-2. motion]
The operation will be described in the above configuration.

[1-2-1. Basic operation of tick death course]
In the above configuration, the operation of the "tick killing course" will be described.

The mite killing course of the present embodiment is composed of a heating step and a washing step. The mite killing course is used to remove organisms that can be allergens such as mites that are attached to blankets, comforters, mattresses, and the like. The heating step kills or inactivates mites and the like, and the washing step removes mites and the like from blankets and the like.

A series of operations of the mite killing course will be described with reference to FIG.

The user inputs the selection of the tick killing course from the operation unit 163. The user opens the outer lid 113, puts the blanket into the inner tank 115 from the charging port, and puts the detergent into the detergent container (not shown). Subsequently, when the user presses the start button (not shown), the operation of the mite killing course is started and the heating process is started.

In the heating step, the temperature inside the inner tank 115 is maintained at 50 ° C. or higher for 20 minutes, and the blanket is heated. In experiments, it has been confirmed that most mites can be killed by heating at 50 ° C. or higher for 20 minutes or longer.

When the heating step starts (S100), the control unit 162 starts the rotation of the inner tank 115 and the rotor blade 121 (S101). Next, the control unit 162 generates warm air by the warm air generator 140 and blows it to the inner tank 115. First, in the warm air generator 140, the blower 141 is driven (S102), and then the heater 142 is energized (S103) to generate warm air. The generated warm air is blown into the inner tank 115 through the warm air supply path 144 and the upper hose 151, and through the warm air ejection hole 143. The blown warm air comes into contact with the blanket inside the inner tank 115 and heats the blanket. At the same time, exhaust is performed from the bottoms of the inner tank 115 and the outer tank 112. In the heating step, since the cooling blower 117 of the heat exchanger 154 is turned off, the exhausted warm air is not cooled and circulates to the blower 141 again.

The control unit 162 continues to alternately perform the rotational operation of the inner tank 115 and the rotary blade 121 and the rotational operation of only the rotary blade 121. The rotation operation in the heating step will be described later.

While the heater 142 is heating, the first temperature detection unit 152 and the second temperature detection unit 155 measure the temperature of the air (S104). Here, the temperature value detected by the first temperature detection unit 152 is defined as T1 (° C.), and the temperature value detected by the second temperature detection unit 155 is defined as T2 (° C.). Further, the upper limit temperature of T1 is defined as temperature A, and the upper limit temperature of T2 is defined as temperature B. When the temperature detected by each temperature detection unit exceeds a predetermined upper limit temperature (S104, Yes), the control unit 162 stops heating (S105). In FIG. 4, as an example, the input / output timing diagram of the heater 142 corresponding to T1 and T2 is shown. In FIG. 4, when the elapsed time t is t = t1, the temperature T1 exceeds the temperature A, and the output of the heater 142 is turned off. Further, even when the elapsed time t is t = t5, T2 exceeds the temperature B and the output of the heater 142 is turned off.

When the heating is stopped, the temperature inside the inner tank 115 gradually decreases due to the air blown from the warm air ejection hole 143 and heat dissipation. The second temperature detection unit 155 continuously measures the temperature of the air, and the control unit 162 determines whether or not T2 is equal to or lower than a predetermined lower limit temperature (S106). In the present embodiment, the resumption of heating of the heater 142 is set when the temperature of T2 becomes B-2 ° C. or lower.

When T2 is higher than the temperature B-2 ° C., the warm air generator 140 continues blowing air with the heater 142 turned off (S106, No).

When the temperature of T2 becomes B-2 ° C. or lower (S106, Yes), the control unit 162 turns on the heater 142 again (S103). In FIG. 4, when the elapsed time t is t = t2, T2 falls below the temperature B-2, and the output of the heater 142 turns ON.

When T1 is below the temperature A and T2 is also below the temperature B (S104, No), the control unit 162 determines whether or not the elapsed time since the heater 142 was first turned on exceeds a predetermined time. (S107). In order to kill mites, it is necessary to maintain the temperature at 50 ° C. or higher for 20 minutes or longer. Therefore, in the present embodiment, the predetermined time is set to 20 minutes. When the elapsed time t is equal to or less than the predetermined time, the control unit 162 continues to determine S104 as it is. When it is determined that the elapsed time t exceeds the predetermined time, the control unit 162 turns off the blower 141 and the heater 142, and ends the heating step (S109).

When the heating process is completed, the washing process is started. The control unit 162 opens the water supply valve 131 to supply water to a predetermined water level, and then drives the motor 122 to perform a washing operation. The rotational driving force of the motor 122 is transmitted to the rotary blade 121 via the washing shaft 124, and the blanket is agitated by the rotation of the rotary blade 121. At this time, the mites are peeled off from the blanket surface. The control unit 162 ends the washing operation when the stirring operation is performed for a predetermined time. The control unit 162 opens the drain valve 132 to drain the washing liquid containing the dead mite. Subsequently, a dehydration operation is performed in which water is separated from the blanket by centrifugal force. The control unit 162 switches the clutch 123 to the dehydration side. The rotational driving force of the motor 122 is transmitted to the inner tub 115 and the rotary wing 121 via the washing shaft 124 and the dehydration shaft 125 to rotate the inner tub 115 and the rotary wing 121. Next, water is supplied again and a rinsing operation is performed to remove the remaining dirt. Subsequently, a dehydration operation is performed. The washing process ends with the end of the dehydration operation, and the mite killing course ends.

[1-2-2. Rotational operation in the heating process]
The rotation operation in the heating step will be described with reference to FIG.

In the present embodiment, in the heating step, the rotational operation of the inner tank 115 and the rotary blade 121 and the rotational operation of the rotary blade 121 are alternately executed. When the heating step is started, the control unit 162 puts the clutch 123 on the dehydration shaft 125 side and starts the rotational operation of the inner tank 115 and the rotary blade 121. In FIG. 5, the control unit 162 increases the rotation speed of the inner tank 115 and the rotary blade 121 every time a certain period of time elapses. After a lapse of a predetermined time, the control unit 162 stops the rotation of the inner tank 115 and the rotary blade 121.

The operation of the blanket in the rotational operation of the inner tank 115 and the rotary blade 121 will be described. When the inner tank 115 and the rotor blade 121 rotate, the blanket receives centrifugal force toward the inner wall and changes from the folded state to the slightly opened state. As the number of revolutions increases, the centrifugal force also increases, so the way the blanket opens also changes. As a result, the place where the warm air is blown can be changed, and the hot air can be brought into contact with the place where the warm air did not hit at the low rotation speed.

Subsequently, the rotational operation of the rotary blade 121 will be described. The control unit 162 switches the clutch 123 to the washing shaft 124 side and starts the rotational operation of the rotary blade 121. In the rotation operation, the rotation in the direction in which the rotary blade 121 first starts rotating (for example, right rotation) is regarded as normal rotation, and the rotation in the opposite direction (for example, left rotation) is regarded as reverse rotation. The control unit 162 rotates the rotary blade 121 in the normal direction at the rotation speed b (r / min), and stops the normal rotation in the motor 122 when a predetermined time elapses. Subsequently, the control unit 162 reverses the rotation direction of the motor 122 and reverses the rotary blade 121 at the rotation speed −a (r / min). a and b are set so that | a | ≤ | b |. When the predetermined time elapses, the control unit 162 stops the rotation of the motor 122 again. The control unit 162 performs the second inversion and rotates the rotary blade 121 in the normal direction at the rotation speed b (r / min). When a predetermined time elapses, the control unit 162 stops the rotation of the motor 122 and ends the rotation operation of the rotary blade 121. As described above, the rotary blade 121 performs an even number of reversal operations, that is, an odd number of rotation operations.

The operation of the blanket in the rotational operation of the rotary blade 121 will be described with reference to FIG.

Generally, when the clothes are dried, when the rotary blade 121 rotates, the clothes attached to the inner wall of the inner tank 115 are peeled off and lifted to the sky by the stirring protrusion 126. As a result, the clothes are evenly blown with warm air and dried.

On the other hand, since the blanket has a larger volume and weight than general clothing, it cannot be lifted into the air by the stirring protrusion 126. Therefore, when heating the blanket, it is important to adjust the position where the warm air hits by using the rotation of the inner tank 115 and the rotary blade 121.

In the rotational operation of the rotary blade 121, when the rotation speed of the rotary blade 121 is increased or when the rotary blade 121 is rotated at a constant rotation speed, the blanket is in the opposite direction to the rotation direction (straight arrow direction). It collapses to (see Fig. 6). This is because the upper part of the blanket is not in contact with the rotary blade 121 and is delayed in the rotation of the rotary blade 121. The blanket may fall over gradually or suddenly, both of which can occur. When the blanket collapses, the location of the gap between the blanket and the inner wall of the inner tank 115 and the shape of the folded blanket also change. Then, the warm air is blown into the place where the warm air was hard to hit before the blanket fell, and the leakage of the warm air can be reduced.

When the rotation operation is completed, the control unit 162 causes the inner tank 115 and the rotary blade 121 to rotate. The blanket is spread toward the inner wall of the inner tank 115 in a collapsed state by the centrifugal force of the rotation of the inner tank 115. Therefore, the action of spreading the blanket by centrifugal force works most strongly in the first rotation operation of the inner tank 115. This is because the blanket is housed almost vertically in the first rotation operation of the inner tank 115. However, the second and subsequent rotation operations of the inner tank 115 also have the effect of spreading the blanket and spreading warm air. When the predetermined time elapses, the rotational operation of the inner tank 115 is completed, and the rotational operation of the rotary blade 121 is started again.

The control unit 162 starts the rotation operation from the reverse rotation, unlike the rotation operation of the rotary blade 121 last time. The control unit 162 reverses the rotary blade 121 at the rotation speed −b (r / min), and stops the rotation of the rotary blade 121 when a predetermined time elapses. Subsequently, the rotation direction of the motor 122 is reversed, and the rotary blade 121 is rotated forward at the rotation speed a (r / min). After a lapse of a predetermined time, a second reversal is performed, and the rotary blade 121 is reversed at a rotation speed −b (r / min). When the predetermined time elapses, the control unit 162 stops the reversal of the motor 122 and ends the rotational operation of the rotary blade 121.

Since the rotation direction of the first rotary wing 121 and the second rotation motion of the rotary wing 121 are different at the start, the direction in which the blanket falls is different. Therefore, in the previous rotational operation of the rotary blade 121, the warm air hits the portion where the warm air was difficult to reach, so that the unevenness of the warm air hitting can be reduced.

When the rotational operation of the rotary blade 121 is completed, the rotational operation of the inner tank 115 and the rotary blade 121 is restarted. The control unit 162 continues to alternately perform the rotational operation of the inner tank 115 and the rotary blade 121 and the rotational operation of the rotary blade 121. When the control unit 162 determines that the heating at a predetermined temperature is completed for a predetermined time, the control unit 162 ends the rotation operation of the inner tank 115 and the rotation operation of the rotary blade 121.

With the above configuration, warm air can be evenly applied to the blanket, so that the efficiency of the heating operation can be improved, such as shortening the heating time and saving the power consumption of the heater.

[1-3. effect]
As described above, in the present embodiment, the washer / dryer 100 includes an inner tank 115, a rotary blade 121, a motor 122, a blower 141, a heater 142, and a control unit 162. The inner tank 115 has a bottomed cylindrical shape and accommodates a blanket. The rotary blade 121 is arranged on the bottom surface inside the inner tank 115 and is rotatably provided. The motor 122 rotationally drives the inner tank 115 and the rotary blade 121. The blower 141 and the heater 142 blow warm air to the inner tank 115. The control unit 162 controls the inner tank 115, the motor 122, the blower 141, and the heater 142 to execute the heating operation and the washing operation. Further, the control unit 162 performs a rotational operation of the rotary wing 121 for causing the rotary wing 121 to alternately perform forward rotation and reverse rotation for a predetermined time, and the rotational operation of the rotary wing 121 performs forward rotation and reverse rotation twice (forward rotation and reverse rotation). Forward rotation, reverse rotation, and forward rotation (three rotation operations) are performed, and the next rotation operation of the rotary blade 121 starts from the rotation in the direction opposite to the rotation direction stopped in the previous rotation operation of the rotary blade 121. ..

Thereby, when heating a bulky blanket, the position of the blanket to which the warm air is blown can be changed. Therefore, it is possible to apply warm air evenly to the blanket, and the blanket can be heated efficiently.

As in the present embodiment, the control unit 162 may have different rotation speeds for forward rotation and reverse rotation. As a result, the direction of rotation of either the forward rotation or the reverse rotation is strongly influenced, so that the direction in which the blanket falls can be more controlled. Therefore, it is possible to apply warm air evenly to the blanket, and the blanket can be heated efficiently.

As in the present embodiment, the control unit 162 may make the number of rotations in the rotation direction when the rotary blade 121 starts to rotate larger than the number of rotations in the rotation direction after reversal. As a result, the direction of rotation of either the forward rotation or the reverse rotation is strongly influenced, so that the direction in which the blanket falls can be more controlled. Therefore, it is possible to apply warm air evenly to the blanket, and the blanket can be heated efficiently.

(Other embodiments)
As described above, the first embodiment has been described as an example of the technology disclosed in the present application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. have been made.

Therefore, other embodiments will be illustrated below.

In the first embodiment, as an example of performing the rotary blade operation in which the rotary blade alternately performs the forward rotation operation and the reverse rotation operation at predetermined intervals, the rotary blade operation has a configuration in which the forward rotation operation and the reverse rotation operation are reversed an even number of times. The operation of performing the rotation operation an odd number of times) has been described. The rotary blade operation in which the rotary blades alternately perform the forward rotation operation and the reverse rotation operation may be such that the forward rotation operation and the reverse rotation operation are alternately performed. Therefore, the configuration is not limited to the configuration in which the forward rotation operation and the reverse rotation operation are reversed an even number of times, and a configuration in which the accommodating portion is rotated between the forward rotation operation and the reverse rotation operation may be used. However, the configuration in which the forward rotation operation and the reverse rotation operation are reversed an even number of times in one rotary blade operation has a high effect of tilting the blanket to change the way the warm air hits.

In the first embodiment, as an example of performing the reverse rotation operation and the reverse rotation operation an even number of times, a configuration in which the reverse rotation operation is performed twice has been described. Since the reversal of the forward rotation operation and the reverse rotation operation may be an even number of times, the number of reversals is not limited to two times.

In the first embodiment, as an example of making the rotation speeds of the forward rotation operation and the reverse rotation operation different, the rotation speeds in the rotation direction when the rotary blade operation is started are always larger than the rotation speeds in the rotation direction after the rotation. The configuration was explained. Since the rotation speed may be different between the forward rotation operation and the reverse rotation operation, the rotation speed in the rotation direction when the rotary blade operation is started does not always have to be larger than the rotation speed in the rotation direction after the inversion. .. However, in a configuration in which the forward rotation operation and the reverse rotation operation are reversed an even number of times in one rotary blade operation, when the rotation speeds of the forward rotation operation and the reverse rotation operation are different, the rotation speed in the rotation direction when the rotary blade operation is started. By making the number of rotations in the rotation direction after inversion larger than the number of rotations in the rotation direction after inversion, the direction of the force acting on the blanket can be biased, so that the blanket can be tilted more.

In the first embodiment, the rotational operation of the rotary blade in the heating step has been described as an example of performing the rotary blade operation in which the rotary blade alternately performs the forward rotation operation and the reverse rotation operation at predetermined intervals. Since the rotary blade operation may be a drying operation or a heating operation, the rotary blade operation is not limited to the heating step, and the same rotary operation may be used in the drying step. However, in a heating process in which temperature control is difficult, it is more effective to perform rotary blade operation at predetermined intervals so that the rotary blade alternately performs forward rotation operation and reverse rotation operation.

The present disclosure is applicable to a washer / dryer in which the temperature may rise excessively during heating. Specifically, the present disclosure is applicable to a vertical washer-dryer, a drum-type washer-dryer, a dryer, and the like.

100 Washer / dryer 111 Housing 112 Outer tank 113 Outer lid 114 Outer tank cover 115 Inner tank 116 Inner lid 117 Cooling blower 121 Rotating blade 122 Motor 126 Stirring protrusion 131 Water supply valve 132 Drain valve 140 Hot air generator 141 Blower 142 Heater 143 Hot air ejection hole 144 Hot air supply path 151 Upper hose 152 First temperature detector 153 Lower hose 154 Heat exchanger 155 Second temperature detector 161 Control unit 162 Control unit 163 Operation unit 164 Display unit 165 Storage unit 166 Power switching unit

Claims (4)

It has a bottomed cylindrical shape and has a storage unit for storing laundry.
Rotor blades that are arranged on the bottom surface inside the housing and are rotatably provided,
A rotary drive unit that rotationally drives the storage tank and the rotary blades,
A warm air blower that blows warm air to the accommodating part,
A control unit that controls the accommodating unit, the rotation driving unit, and the warm air blowing unit to execute a washing step , a drying step, or a heating step is provided.
The control unit is capable of performing a course of drying or heating the folded bedding.
In the drying step or the heating step in the course , the control unit performs rotary blade operation in which the rotary blade alternately performs forward rotation operation and reverse rotation operation at predetermined intervals, and the rotary blade operation reverses forward rotation operation and reverse rotation operation. The operation is reversed an even number of times, and the next rotary wing operation starts from the rotation in the direction opposite to the rotation direction stopped in the previous rotary wing operation.
Washing and drying machine. The accommodating portion is rotated between the previous rotary blade operation and the next rotary blade operation.
The washer / dryer according to claim 1. The control unit makes the rotation speeds of the forward rotation operation and the reverse rotation operation different.
The washer / dryer according to claim 1 or 2. The control unit makes the rotation speed in the rotation direction when the rotary blade operation is started larger than the rotation speed in the rotation direction after inversion.
The washer / dryer according to any one of claims 1 to 3.

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