JP2023095597A - Drum-type dehydrator - Google Patents

Abstract

To provide a drum-type dehydrator capable of dehydrating even a waterproof clothing impervious to water.SOLUTION: A drum-type dehydrator of the present invention has a drum that is disposed in an outer tub and rotatable around a horizontal shaft or an inclined shaft inclined with respect to a horizontal direction, three or more baffles displaced at equal intervals in a circumferential direction with respect to an inner peripheral surface of the drum, a drive motor for driving the drum to rotate, a fan for feeding air in the drum, and control means to control the drive motor and the fan. The control means controls the drive motor so as to alternately repeat a forward direction rotation in which the drum rotates in a forward direction and a reverse direction rotation in which the drum rotates in a reverse direction in a state in which the fan is driven.SELECTED DRAWING: Figure 5

Description

The present invention relates to a drum dehydrator for dehydrating waterproof clothing such as rainwear.

A general drum-type washing machine installed in a general household or a laundromat has an outer tub provided in the washing machine body and a drum housed in the outer tub so as to be rotatable around a horizontal axis. . In this drum-type washing machine, after clothes are put into the drum, washing is performed by rotating the drum while water is supplied to the outer tub, and then the water is drained from the outer tub and the drum is rotated at high speed. Dehydration is performed by

2. Description of the Related Art In a drum-type washing machine, a large number of small holes are formed all over the outer peripheral surface of the drum. Therefore, when the drum is rotated at high speed to dehydrate the clothes, the moisture contained in the clothes is discharged into the outer tub through a large number of small holes by centrifugal force (see, for example, Patent Document 1). .

JP-A-10-99586

When drying waterproof clothing such as rainwear after wearing it, the drying place is limited because of dripping water. In addition, there is a problem that mold is generated when water-adhered waterproof clothing is left for a long time. In order to solve such a problem, it is conceivable to use a drum-type washing machine to dehydrate water-adhered waterproof clothing. In a drum-type washing machine, when a drum containing waterproof clothes is rotated at high speed, the waterproof clothes are stuck to the inner peripheral surface of the drum.

Waterproof clothing is made of water-impermeable (impermeable) fabric to prevent water from entering. Water cannot be discharged into the outer tank. Thus, a general drum-type washing machine cannot dehydrate waterproof clothes.

SUMMARY OF THE INVENTION The present invention is intended to solve such problems, and a main object thereof is to provide a drum-type dehydrator capable of dehydrating waterproof clothes.

The drum type dehydrator according to the present invention comprises a drum arranged in an outer tank and rotatable about a horizontal axis or an inclined axis tilted with respect to the horizontal direction as a rotation axis; three or more baffles arranged at regular intervals, a drive motor for rotating the drum, a fan for supplying air to the inside of the drum, and control means for controlling the drive motor and the fan. The control means controls the drive motor so that, in a state in which the fan is driven, forward rotation in which the drum rotates in a forward direction and reverse rotation in which the drum rotates in a reverse direction are alternately repeated. It is characterized by

In the drum-type dewatering machine according to the present invention, when the forward rotation is performed, the control means accelerates the rotational speed of the drum in the forward direction to an appropriate rotational speed, and then rotates the drum forward. When the reverse rotation is performed, the rotation speed of the drum is accelerated in the reverse direction to an appropriate rotation speed, and then the reverse acceleration of the drum is stopped. Preferably, the drive motor is controlled so as to.

In the drum-type dehydrator according to the present invention, when the forward rotation is performed, the control means accelerates the rotational speed of the drum in the forward direction, increases it to an appropriate rotational speed, and immediately decelerates it. When rotating in the reverse direction, it is preferable to control the drive motor so that the rotational speed of the drum is accelerated in the reverse direction, increased to an appropriate rotational speed, and immediately thereafter decelerated.

In the drum-type dehydrator according to the present invention, in the forward rotation, at a stage when the number of rotations of the drum is accelerated in the forward direction and increased to an appropriate number of rotations, the waterproof clothing is locked at the lower end portion inside the drum. The baffle is moved above the height of the rotating shaft on one side in the left-right direction of the rotating shaft, and in the reverse direction rotation, the rotation speed of the drum is accelerated in the opposite direction and rises to an appropriate rotation speed. It is preferable that, at this stage, the baffle that holds the waterproof clothing at the lower end inside the drum has moved above the height of the rotating shaft on the other side in the left-right direction of the rotating shaft.

In the drum-type dehydrator according to the present invention, in the forward rotation, at a stage when the number of rotations of the drum is accelerated in the forward direction and increased to an appropriate number of rotations, the waterproof clothing is locked at the lower end portion inside the drum. When the baffle is located below the height of the rotating shaft on one side of the rotating shaft in the left-right direction, and in the reverse direction rotation, the rotation speed of the drum is accelerated in the opposite direction and increased to an appropriate rotation speed. It is preferable that the baffle that holds the waterproof clothing at the lower end inside the drum is located below the height of the rotating shaft on the other side in the left-right direction of the rotating shaft.

According to the present invention, while air is being supplied into the drum housing the waterproof clothing, the drum is rotated alternately in forward and reverse directions, thereby removing water from the waterproof clothing. can be blown away. This makes it possible to provide a drum-type dehydrator capable of dehydrating waterproof clothes.

According to the present invention, when the drum is alternately rotated in the forward direction and the reverse direction, the rotation speed of the drum is accelerated to an appropriate rotation speed, and then the acceleration is stopped. Baffles allow waterproof garments to be lifted, dropped and turned over. Therefore, it is possible to efficiently blow off the water adhering to the waterproof clothing.

According to the present invention, when the drum alternately rotates in the forward direction and the reverse direction, the rotation speed of the drum is accelerated to an appropriate rotation speed, and then decelerated immediately afterward, so that the baffle is formed in the drum. Waterproof garments can be turned upside down without being lifted too high. Therefore, it is possible to efficiently blow off the water adhering to the waterproof clothing.

According to the present invention, when the drum alternately rotates in the forward direction and the reverse direction, the baffle can lift the waterproof clothing above the height of the rotation shaft in the drum, drop it, and turn it over. Therefore, it is possible to efficiently blow off the water adhering to the waterproof clothing.

According to the present invention, when the drum alternates between forward and reverse rotation, the baffle allows the waterproof garment to be turned inside the drum without lifting it too high. A waterproof membrane is formed on the surface of the waterproof clothing, but if the waterproof clothing is repeatedly dropped from high inside the drum, the waterproof membrane may be damaged and the waterproof performance may deteriorate. By preventing the waterproof clothing from falling from above, it is possible to prevent the waterproof clothing from being damaged.

BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view which looked at the drum-type washing machine 1 which concerns on this Embodiment from the front diagonally upper right. FIG. 2 is a schematic cross-sectional view of the drum-type washing machine 1 of FIG. 1 taken along a vertical plane extending in the front-rear direction and viewed from the right side; 2 is a control block diagram of the drum-type washing machine 1 of FIG. 1. FIG. It is a figure explaining the content of control at the time of a 1st strong wind tumbling operation|movement being performed. FIG. 10 is a diagram for explaining a state change inside the drum 4 when the first strong wind tumbling operation is performed; It is a figure explaining the content of control at the time of a 2nd strong wind tumbling operation|movement being performed. FIG. 10 is a diagram for explaining a state change inside the drum 4 when a second strong wind tumbling operation is performed;

Hereinafter, a drum-type washing machine 1 having a dehydrator according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a drum-type washing machine 1 according to an embodiment of the present invention, viewed obliquely from the upper front right. It is shown in a partially notched state in order to partially expose internal components. FIG. 2 is a schematic cross-sectional view of the washing/drying machine 1 taken along a vertical plane extending in the front-rear direction and viewed from the right side.

As shown in FIG. 1, the drum-type washing machine 1 of this embodiment has a box-shaped housing 2. Inside the housing 2, an outer tub 3 having a substantially cylindrical inner peripheral surface is provided. is disposed inside the outer tub 3, and a drum 4 having a substantially cylindrical inner peripheral surface for containing the laundry is supported by a main shaft 5 extending in the front-rear direction. The drum 4 is rotatable around a horizontal axis as a rotation axis N. As shown in FIG.

Formed on the front surface of the housing 2 are an operation section 2a for a user to operate, and a clothing slot 6 facing an opening 4a formed at the front end of the drum 4. As shown in FIG. The housing 2 is provided with a door 8 for opening and closing the clothes inlet 6. The clothes inlet 6 is opened and closed by the door 8. With the door 8 open, the laundry can be put in and taken out of the drum 4. It is possible.

A plurality of baffles 4 b are provided on the inner peripheral surface of the drum 4 so as to protrude into the drum 4 . The baffle 4b is a protrusion for lifting the laundry accommodated in the drum 4. For example, during the washing process, when the drum 4 is rotated by the driving force of a driving motor 11, which will be described later, the water in the drum 4 is removed. So-called pounding washing is performed in which the contained laundry is lifted by the baffle 4b and naturally dropped.

A large number of water passage holes 4c are formed in the inner peripheral surface of the drum 4, and water supplied into the outer tub 3 during washing and rinsing flows into the drum 4 through the water passage holes 4c and is centrifuged. Water discharged from the laundry in the drum 4 during dehydration scatters toward the outer tub 3 side through the water passage holes 4c.

The main shaft 5 is rotatably supported by a bearing 5a mounted on the back wall of the outer tub 3, and a main pulley 10 is attached to the tip of the main shaft 5 projecting rearward. A driving motor 11 for rotationally driving the drum 4 is arranged at the lower rear portion of the outer tub 3 . A motor pulley 12 is attached to the rotating shaft of the drive motor 11 , and the torque of the motor pulley 12 is transmitted to the main pulley 10 via a timing belt 16 . Accordingly, when the drive motor 11 is driven, the drum 4 rotates about the main shaft 5 .

A water supply pipe 30 having a water supply valve 30a in the middle is connected to the upper part of the rear wall of the outer tank 3. When the water supply valve 30a is opened, water supplied from the outside is supplied through the water supply pipe 30. is supplied to the outer tank 3. A drain pipe 31 having a drain valve 31a in the middle is connected to a drain port 3a provided at the bottom of the outer tank 3. When the drain valve 31a is opened, the water in the outer tank 3 is drained. It is discharged out of the machine through the port 3a and the drain pipe 31.

An intake section 50 is provided in the upper right portion of the outer tub 3 . The air intake section 50 has a first air intake duct 51 , a second air intake duct 52 , and a duct connecting pipe 53 that connects the first air intake duct 51 and the second air intake duct 52 . The first intake duct 51 communicates with the inside of the outer tub 3 via an inlet 54 provided in the outer tub 3 . The second air intake duct 52 is fixed to the housing 2 so that the open end 52 a thereof faces an air intake port 55 provided in the housing 2 .

A heater 56 is provided inside the second intake duct 52 . The heater 56 is, for example, a gas heater that burns gas supplied from an external gas supply path (not shown) and heats the surrounding air with the combustion heat. can be switched off. Therefore, when the fan 65, which will be described later, is driven and the heater 56 is turned on, the air in the second air intake duct 52 is heated, and the heated air flows through the duct connecting pipe 53 and the first air intake duct 51. is supplied into the outer tank 3 through the

An exhaust part 60 is provided in the upper left part of the outer tub 3 . The exhaust section 60 has a first exhaust duct 61 , a second exhaust duct 62 , and a duct connecting pipe 63 that connects the first exhaust duct 61 and the second exhaust duct 62 . The first exhaust duct 61 communicates with the inside of the outer tub 3 via an outlet 64 provided in the outer tub 3 . The second exhaust duct 62 exposes its open end 62 a to the outside of the housing 2 . A fan 65 is arranged inside the second exhaust duct 62 , and a filter 66 is provided inside the second exhaust duct 62 at a position upstream of the fan 65 .

When the fan 65 is driven, the path from the air inlet 55 provided in the housing 2 to the fan 65 (that is, the second air intake duct 52, the duct connecting pipe 53, the first air intake duct 51, the outer tank 3, A path formed by the first exhaust duct 61 , the duct connecting pipe 63 , and the second exhaust duct 62 ) forms an air flow in the direction from the intake port 55 toward the fan 65 .

FIG. 3 is a control block diagram of the drum-type washing machine 1. As shown in FIG. As shown in FIG. 3, the control unit 80 of the drum-type washing machine 1 is composed of, for example, a microcomputer, and includes a CPU, a ROM storing a program for controlling the operation of the drum-type washing machine 1, A RAM for temporarily storing data and the like used when executing the program is provided. The control unit 80 is connected to the water supply valve 30a, the water discharge valve 31a, the drive motor 11, the heater 56, and the fan 65, and controls these units. The operation of the drum-type washing machine 1 is controlled by this controller 80 .

The drum-type washing machine 1 can perform washing operations including washing, rinsing, spin-drying, and drying, and can also carry out a spin-drying operation for waterproof clothes. The washing operation including washing, rinsing, spin-drying and drying is the same as general operation, so the explanation thereof is omitted.

The dewatering operation of waterproof clothes will be described with reference to FIGS. 4 to 7. FIG. In the present embodiment, the dehydration operation for the waterproof clothing is performed by performing the second strong wind tumbling motion after the first strong wind tumbling motion is performed.

First, the first strong wind tumbling motion will be described with reference to FIG. FIG. 4 is a diagram for explaining the details of control when the first strong wind tumbling motion is performed.

(First strong wind tumbling motion)
In the first strong wind tumbling operation included in the dehydration operation for waterproof clothes, the drain valve 31a is kept open. The fan 65 for supplying air to the inside of the drum 4 is switched from off to on after 5 seconds from the start of the dehydration operation. In this embodiment, the rotation speed of the fan 65 is set to 5500 rpm or more, and relatively strong wind is supplied into the drum 4 . Considering the material of the waterproof clothing, the heater 56 is kept off so as not to tumble dry with warm air.

Five seconds after the start of the dewatering operation, the control unit 80 starts rotating the drum 4 so as to rotate it in the forward direction. The control unit 80 increases the rotation speed of the drum 4 to an appropriate rotation speed at an acceleration of 30 rpm/sec to blow off the moisture from the clothes. The first proper number of revolutions is the number of revolutions at which clothes do not stick (for example, 55 rpm±5 rpm). The control unit 80 maintains the rotation speed of the drum 4 at the first proper rotation speed until the first predetermined ON time (for example, 15 seconds) elapses. After that, when the first predetermined ON time elapses, the controller 80 reduces the rotational speed of the drum 4 at an acceleration of 30 rpm/sec and stops the drum 4 . After that, the control unit 80 keeps the drum 4 in a stopped state until the first predetermined off-time (for example, 5 seconds) elapses.

After that, when the predetermined OFF time has passed, the control unit 80 starts rotationally driving the drum 4 to rotate in the reverse direction. The control unit 80 increases the rotation speed of the drum 4 to an appropriate rotation speed at an acceleration of 30 rpm/sec to blow off the moisture from the clothes.

The first proper number of revolutions is the number of revolutions at which clothes do not stick (for example, 55 rpm±5 rpm). The control unit 80 maintains the rotation speed of the drum 4 at the first proper rotation speed until the first predetermined ON time (for example, 15 seconds) elapses.

After that, when the predetermined ON time has passed, the controller 80 reduces the rotational speed of the drum 4 at a deceleration of 30 rpm/sec and stops the drum 4 . After that, the control unit 80 keeps the drum 4 in a stopped state until the first predetermined off-time (for example, 5 seconds) elapses.

Thereafter, in the same manner as described above, forward rotation in which the drum 4 rotates in the forward direction and reverse rotation in which the drum 4 rotates in the reverse direction are alternately repeated. That is, while air is being supplied into the drum 4 by the fan 65, the drum 4 is repeatedly rotated forward and backward to change the state of the waterproof clothing while blowing off moisture from the waterproof clothing.

In this embodiment, the predetermined off time is set longer in the range of 5 to 10 seconds, and the predetermined on rotation is about three times the off time. In this embodiment, it is preferable that the acceleration of the rotational speed of the drum 4 is, for example, 25 rpm/sec to 35 rpm/sec. It is preferable that the first proper rotation speed is 45 rpm to 60 rpm.

State changes in the drum 4 when the first strong wind tumbling operation is performed will be described with reference to FIG. FIG. 5 is a diagram illustrating changes in the state inside the drum 4 when the first strong wind tumbling motion is performed. In addition, in FIG. 5, the height of the rotation axis N of the drum 4 is indicated by a dashed line.

When the first gale tumbling action is started, the waterproof garment T is thrown into the drum 4, as shown in FIG. 5-1. In this state, when the drum 4 is driven to rotate in the forward direction, the waterproof clothing T is locked by the baffle 4b at the lower end inside the drum 4, and the rotating shaft N is rotated, as shown in FIG. 5-2. On the left side, it is lifted upward by the baffle 4b as the drum 4 rotates forward.

After that, when the rotation speed of the drum 4 accelerates in the positive direction and rises to the first proper rotation speed, as shown in FIG. 4b has moved above the height of the rotation axis N on the left side of the rotation axis. In this state, when the acceleration of the drum 4 in the forward direction is stopped, the waterproof clothing T leaves the locked baffle 4b and falls downward due to gravity.

Thereafter, as shown in FIG. 5-4, the rotation of the drum 4 is stopped while the waterproof garment T is placed at the lower end inside the drum 4 . Subsequently, when the drum 4 is driven to rotate in the opposite direction, the waterproof clothing T is locked by the baffle 4b at the lower end inside the drum 4, and on the right side of the rotation axis N, as shown in FIG. 5-5. As the drum 4 rotates in the opposite direction, it is lifted upward by the baffle 4b.

After that, when the rotation speed of the drum 4 accelerates in the opposite direction and rises to the first proper rotation speed, as shown in FIG. 4b has moved above the height of the rotation axis N on the right side of the rotation axis. In this state, when the acceleration of the drum 4 in the opposite direction is stopped, the waterproof clothing T leaves the locked baffle 4b and falls downward due to gravity. After that, the rotation of the drum 4 is stopped while the waterproof clothing T is arranged at the lower end inside the drum 4 .

Thereafter, in the same manner as described above, forward rotation in which the drum 4 rotates in the forward direction and reverse rotation in which the drum 4 rotates in the reverse direction are alternately repeated.

Next, the second strong wind tumbling motion will be described with reference to FIG. FIG. 6 is a diagram for explaining the details of control when the second strong wind tumbling motion is performed.

(Second strong wind tumbling motion)
In the second strong wind tumbling operation included in the dewatering operation of the waterproof clothes, the drain valve 31a is kept open. The fan 65 for supplying air to the inside of the drum 4 is switched from the off state to the on state 5 seconds after the start of the dehydration operation. In this embodiment, the rotation speed of the fan 65 is set to 5500 rpm or more, and relatively strong wind is supplied into the drum 4 . Considering the material of the waterproof clothing, the heater 56 is kept off so as not to tumble dry with hot air.

Five seconds after the start of the second strong wind tumbling operation, the control unit 80 starts rotationally driving the drum 4 so as to rotate it in the forward direction. The control unit 80 increases the rotation speed of the drum 4 to the second proper rotation speed at an acceleration of 150 rpm/sec to blow off moisture from the clothes.

The second appropriate number of rotations is the number of rotations (for example, 100 rpm±5 rpm) at which the clothes can be lifted (vigorously). Immediately after the rotation speed of the drum 4 rises to the second proper rotation speed, the control unit 80 rotates the rotating shaft of the drive motor 11 in the opposite direction to reduce the rotation speed of the drum 4 to 1000 rpm/sec. to slow down and stop. After that, the control section 80 keeps the drum 4 in a stopped state until the second predetermined OFF time (for example, 10 seconds) has passed.

After that, when the second predetermined OFF time has elapsed, the control unit 80 starts rotating the drum 4 so as to rotate it in the reverse direction. The control unit 80 increases the rotation speed of the drum 4 to the second proper rotation speed at an acceleration of 30 rpm/sec to blow off moisture from the clothes.

The second appropriate number of rotations is the number of rotations (for example, 100 rpm±5 rpm) at which the clothes can be lifted (vigorously). Immediately after the rotation speed of the drum 4 rises to the second proper rotation speed, the control unit 80 rotates the rotating shaft of the drive motor 11 in the opposite direction to reduce the rotation speed of the drum 4 to 1000 rpm/sec. to slow down and stop. After that, the control section 80 keeps the drum 4 in a stopped state until the second predetermined OFF time (for example, 10 seconds) has passed.

Thereafter, in the same manner as described above, forward rotation in which the drum 4 rotates in the forward direction and reverse rotation in which the drum 4 rotates in the reverse direction are alternately repeated. That is, while air is being supplied into the drum 4 by the fan 65, the drum 4 is repeatedly rotated forward and backward, and the rotation of the drum 4 is suddenly stopped, thereby quickly turning over the waterproof clothing and removing moisture from the waterproof clothing. bounce off.

In the present embodiment, the predetermined ON time is set to 2 seconds and the predetermined OFF time is set to 10 seconds, which is a long resting time. In this embodiment, the acceleration of the rotation speed of the drum 4 is preferably 145 rpm/sec to 160 rpm/sec. The deceleration of the rotational speed of the drum 4 is preferably 1000 rpm/sec or more. It is preferable that the second proper rotation speed is 90 rpm to 110 rpm.

State changes in the drum 4 when the first strong wind tumbling operation is performed will be described with reference to FIG. FIG. 7 is a diagram illustrating changes in the state inside the drum 4 when the second strong wind tumbling operation is performed. In addition, in FIG. 7, the height of the rotation axis N of the drum 4 is illustrated with a dashed line.

When the second gale tumbling action is initiated, the waterproof garment is loaded into the drum 4, as shown in Figure 7-1. In this state, when the drum 4 is driven to rotate in the forward direction, the waterproof clothing is locked by the baffle 4b at the lower end inside the drum 4, and is moved to the left side of the rotation axis N as the drum 4 rotates in the forward direction. It is lifted upward by the baffle 4b.

After that, when the rotation speed of the drum 4 accelerates in the positive direction and rises to the second proper rotation speed, as shown in FIG. , does not reach the height of the rotation axis N on the left side of the rotation axis N, and is below the height of the rotation axis N. In this state, when the forward acceleration of the drum 4 is stopped and decelerated, the waterproof clothing separates from the locked baffle 4b and falls downward due to gravity as shown in FIG. do.

Thereafter, the rotation of the drum 4 is stopped with the waterproof garment placed at the lower end inside the drum 4 . Subsequently, when the drum 4 is driven to rotate in the opposite direction, the waterproof clothing is locked by the baffle 4b at the lower end inside the drum 4, and on the right side of the rotation axis N, as shown in FIG. 7-4. 4 is rotated in the opposite direction, the baffle 4b lifts it upward.

After that, when the rotation speed of the drum 4 accelerates in the opposite direction and rises to the second proper rotation speed, as shown in FIG. , does not reach the height of the rotation axis N on the right side of the rotation axis N, and is below the height of the rotation axis N. In this state, when the drum 4 stops accelerating in the opposite direction and decelerates, the waterproof clothing separates from the locked baffle 4b and falls downward due to gravity, as shown in FIG. 7-6. do. Thereafter, the rotation of the drum 4 is stopped with the waterproof garment placed at the lower end inside the drum 4 .

Thereafter, in the same manner as described above, forward rotation in which the drum 4 rotates in the forward direction and reverse rotation in which the drum 4 rotates in the reverse direction are alternately repeated.

As described above, the drum-type washing machine 1 of the present embodiment includes the drum 4 which is arranged in the outer tub 3 and which can rotate about a horizontal axis or an inclined axis tilted with respect to the horizontal direction as the rotation axis N, and the drum 4 Three or more baffles 4b arranged at equal intervals in the circumferential direction with respect to the inner peripheral surface of the drum 4, a drive motor 11 for rotationally driving the drum 4, a fan 65 for supplying wind into the drum 4, and a drive A control unit 80 for controlling the motor 11 and the fan 65 is provided. The control unit 80 controls forward rotation in which the drum 4 rotates in the forward direction and reverse rotation in which the drum 4 rotates in the reverse direction when the fan 65 is driven. The drive motor 11 is controlled so as to alternately repeat rotation.

As a result, while air is being supplied into the drum 4 housing the waterproof clothing, the drum 4 is alternately rotated in the forward direction and the reverse direction to blow off the water adhering to the waterproof clothing. be able to. This makes it possible to provide a drum-type dehydrator capable of dehydrating waterproof clothes.

In the drum-type washing machine 1 of the present embodiment, when the first strong wind tumbling motion and the second strong wind tumbling motion are performed, the controller 80 accelerates the rotation speed of the drum 4 in the forward direction when rotating in the forward direction. After the drum 4 is rotated in the forward direction, the drum 4 is stopped from accelerating to the proper rotation speed. After that, the drive motor is controlled to stop accelerating the drum 4 in the reverse direction.

As a result, when the drum 4 is alternately rotated in the forward direction and the reverse direction, the rotation speed of the drum 4 is accelerated to an appropriate rotation speed, and then the acceleration is stopped. The baffle 4b allows the waterproof garment to be lifted, dropped and turned over. Therefore, it is possible to efficiently blow off the water adhering to the waterproof clothing.

In the drum type washing machine 1 of the present embodiment, when the second strong wind tumbling operation is performed, the controller 80 accelerates the rotation speed of the drum 4 in the positive direction to the appropriate rotation speed when rotating in the positive direction. A driving motor 11 is controlled so as to decelerate immediately after being raised, and to reversely accelerate the number of rotations of a drum 4 when rotating in the reverse direction, and to decelerate immediately after raising the number of rotations to a proper number.

As a result, when the drum 4 is alternately rotated in the forward direction and the reverse direction, the rotational speed of the drum 4 is accelerated to an appropriate rotational speed, and then decelerated immediately afterward. You can turn the waterproof garment upside down without lifting it too high. Therefore, it is possible to efficiently blow off the water adhering to the waterproof clothing.

In the drum type washing machine 1 of the present embodiment, when the first strong wind tumbling operation is performed, in the forward direction rotation, at the stage when the rotation speed of the drum 4 is accelerated in the positive direction and increased to the appropriate rotation speed, the inside of the drum 4 The baffle 4b that locks the waterproof clothing at the lower end of the drum 4 has moved above the height of the rotation axis N on one side in the left-right direction of the rotation axis N, and the rotation speed of the drum 4 is reversed in the reverse direction rotation. , the baffle holding the waterproof clothing at the lower end of the drum 4 moves above the height of the rotation axis N on the other side of the rotation axis N in the left-right direction. are doing.

As a result, when the drum 4 alternately rotates forward and backward, the baffle 4b allows the waterproof clothing to be lifted above the height of the rotation axis N in the drum 4, dropped, and turned over. . Therefore, it is possible to efficiently blow off the water adhering to the waterproof clothing.

In the drum type washing machine 1 of the present embodiment, when the second strong wind tumbling operation is performed, in the forward direction rotation, at the stage when the rotation speed of the drum 4 is accelerated in the positive direction and increased to the appropriate rotation speed, the inside of the drum 4 The baffle 4b that holds the waterproof clothing at the lower end of the drum 4 is located below the height of the rotation axis N on one side in the left-right direction of the rotation axis N, and when rotating in the opposite direction, the rotation speed of the drum 4 accelerates in the opposite direction. When the drum 4 has reached the proper rotation speed, the baffle 4b holding the waterproof clothing at the bottom end of the drum 4 is located below the height of the rotation axis N on the other side of the rotation axis N in the left-right direction.

As a result, when the drum 4 is alternately rotated in the forward and reverse directions, the baffle 4b can turn the waterproof clothing inside the drum 4 without lifting it too high. A waterproof film is formed on the surface of the waterproof clothing, and if the waterproof clothing is repeatedly dropped from a high place in the drum 4, the waterproof film may be damaged and the waterproof property may be deteriorated. By preventing the waterproof clothing from falling from above in the interior 4, it is possible to prevent the waterproof clothing from being damaged.

Although the embodiment of the present invention has been described above, the configuration of the present embodiment is not limited to the above, and various modifications are possible.

For example, in the above-described embodiment, the second strong wind tumbling motion is performed after the first strong wind tumbling motion is performed as the dehydration operation for the waterproof clothing, but the present invention is not limited to this. As the dewatering operation for waterproof clothing, only the first strong wind tumbling motion may be performed, or only the second strong wind tumbling motion may be performed.

In the above embodiment, examples of the first strong wind tumbling motion and the second strong wind tumbling motion were shown, but the invention is not limited thereto. The rotation speed of the fan 65 in the first strong wind tumbling operation (the amount of air supplied into the drum 4), the acceleration when the rotation speed of the drum 4 is increased, the acceleration when the rotation speed of the drum 4 is decreased, and the rotation speed of the drum 4 The control method for changing the rotation speed (first predetermined ON time, first predetermined OFF time, etc.) is arbitrary. Similarly, the rotation speed of the fan 65 in the second strong wind tumbling operation (the amount of air supplied into the drum 4), the acceleration when the rotation speed of the drum 4 is increased, the acceleration when the rotation speed of the drum 4 is decreased, Any control method (second predetermined ON time, second predetermined OFF time, etc.) for changing the number of rotations of the drum 4 can be used.

Although rainwear has been described as waterproof clothing in the above embodiment, it is not limited to this. The present invention can also be applied as a drum-type dehydrator capable of dehydrating waterproof clothing other than rainwear. In the above embodiment, the drum 4 is rotatable with the horizontal axis as the rotation axis N, but it is not limited to this. The drum 4 may be rotatable with the rotation axis N being an inclined axis that is inclined with respect to the horizontal direction. Other configurations can also be modified in various ways without departing from the gist of the present invention.

1 drum-type washing machine (drum-type dehydrator)
3 Outer tank 4 Drum 4b Baffle 11 Drive motor 65 Fan 80 Controller N Rotation shaft

Claims (5)

a drum arranged in the outer tank and rotatable around a horizontal axis or an inclined axis inclined with respect to the horizontal direction as a rotation axis;
three or more baffles arranged at equal intervals in the circumferential direction with respect to the inner peripheral surface of the drum;
a drive motor for rotating the drum;
a fan that supplies air into the drum;
a control means for controlling the drive motor and the fan;
The control means controls the drive motor such that, in a state in which the fan is driven, forward rotation in which the drum rotates in a forward direction and reverse rotation in which the drum rotates in a reverse direction are alternately repeated. A drum type dehydrator characterized by The control means is
When rotating in the forward direction, after accelerating the number of revolutions of the drum in the forward direction and increasing it to an appropriate number of revolutions, stopping the acceleration of the drum in the forward direction,
When rotating in the reverse direction, the rotation speed of the drum is accelerated in the reverse direction and increased to an appropriate rotation speed, and then the acceleration in the reverse direction of the drum is stopped.
2. The drum type dehydrator according to claim 1, wherein said drive motor is controlled. The control means is
When rotating in the forward direction, the number of revolutions of the drum is accelerated in the forward direction, increased to an appropriate number of revolutions, and then immediately decelerated,
When rotating in the reverse direction, the rotation speed of the drum is accelerated in the opposite direction, increased to an appropriate rotation speed, and then immediately decelerated,
3. The drum dehydrator according to claim 2, wherein said drive motor is controlled. In the forward rotation, when the number of rotations of the drum is accelerated in the forward direction and rises to an appropriate number of rotations, the baffle holding the waterproof clothing at the lower end of the drum moves in the left-right direction of the rotation shaft. one side is moved above the height of the rotating shaft,
In the reverse rotation, when the rotation speed of the drum is accelerated in the reverse direction and increased to an appropriate rotation speed, the baffle holding the waterproof clothing at the lower end of the drum moves in the left-right direction of the rotation shaft. 4. The drum type dehydrator according to claim 2 or 3, wherein the other side moves above the height of the rotating shaft. In the forward rotation, when the number of rotations of the drum is accelerated in the forward direction and rises to an appropriate number of rotations, the baffle holding the waterproof clothing at the lower end of the drum moves in the left-right direction of the rotation shaft. located below the height of the rotating shaft on one side,
In the reverse rotation, when the rotation speed of the drum is accelerated in the reverse direction and increased to an appropriate rotation speed, the baffle holding the waterproof clothing at the lower end of the drum moves in the left-right direction of the rotation shaft. 4. The drum-type dehydrator according to claim 2, wherein the other side is located below the height of the rotating shaft.

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