WO2010023792A1

WO2010023792A1 - Drum-type washing machine

Info

Publication number: WO2010023792A1
Application number: PCT/JP2009/002586
Authority: WO
Inventors: 山岡直人; 松本俊成
Original assignee: パナソニック株式会社
Priority date: 2008-08-26
Filing date: 2009-06-09
Publication date: 2010-03-04
Also published as: JP2010051338A; CN102131977B; CN102131977A; KR20110034029A

Abstract

The drum-type washing machine is equipped with a suspension part (31), which elastically supports, in a washing machine outer frame (30), an outer tub (33) that houses a washing and spinning tub (34); a suspension position setting part (57), which sets the position of the suspension part (31); a state detection part (61), which detects the state of the outer tub (33); and a control part (39), which controls the suspension position setting part (57). The control part (39) sets the position of the suspension part (31) according to the output of the state detection part (61).

Description

Drum washing machine

The present invention provides laundry washing, rinsing, and dehydration (may be further performed until drying) in a washing and dehydrating tub rotatably disposed in an elastically supported outer tub in the washing machine body. The present invention relates to a drum type washing machine.

In the conventional drum type washing machine, the washing / dehydrating tub is arranged in the outer tub with the rotation axis thereof inclined in the horizontal direction or the horizontal direction. For this reason, when the laundry is accommodated in the washing and dewatering tub and rotated, the laundry and water tend to be biased downward, and vibration is likely to occur. In particular, when carrying out the dehydration process by rotating the washing / dehydrating tub at high speed, if the laundry in the washing / dehydrating tub is gathered at a biased position, a large vibration is generated in the outer tub containing the washing / dehydrating tub. To do. In order to suppress such vibration associated with the rotation of the washing and dewatering tub, there is known one that reduces the amplitude of vibration generated by supporting the outer tub with a damper having a large buffering force (for example, Patent Document 1). reference).

However, since the outer tub that accommodates such a conventional washing / dehydrating tub is mounted with a bearing that supports the rotating shaft of the washing / dehydrating tub and a motor that drives the drum, the weight balance is rearward. It is in a biased state. When such an outer tub is supported by an anti-vibration damper, the anti-vibration damper is disposed below the approximate center of gravity of the outer tub, but the water tub in which the laundry and water move is biased in the washing and dewatering tub. If it is supported at a different position, it becomes very unstable. Therefore, a weight is attached to the front side of the aquarium to adjust the weight balance between the front and rear, a vibration damping damper is placed in the lower center of the outer tub, and the balance of the outer tub where the center of gravity moves constantly by the rotation of the washing and dehydrating tub is maintained. In addition, the upper part of the outer tub is elastically pulled and biased by a plurality of spring members.

In such a conventional structure, there are many components for absorbing the balance of the outer tub and maintaining balance, and particularly, there are components having a large weight such as a weight. Therefore, there has been a problem in that the weight of the drum type washing machine is increased, the labor required for movement and transportation is large, and the cost is increased.

JP-A-6-327892

SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and provides a drum type washing machine that can effectively suppress vibration of an outer tub containing a washing and dewatering tub and can be supported in a balanced manner without causing an increase in weight. provide.

The drum-type washing machine of the present invention includes a suspension part that elastically supports an outer tub containing a washing and dewatering tub in a washing machine outer frame, a suspension position setting part that sets the position of the suspension part, A state detection unit for detecting a state and a control unit for controlling the suspension position setting unit are provided, and the control unit is configured to set the position of the suspension unit by the output of the state detection unit.

By adopting such a configuration, the outer tub whose center of gravity changes depending on the amount of laundry and the amount of water can be elastically supported in a balanced manner in the outer frame of the washing machine, and the vibration of the outer tub can be effectively suppressed. Can do.

1 is a cross-sectional view of a drum-type washing machine according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of a main part of the drum type washing machine according to Embodiment 1 of the present invention, with a part cut away. FIG. 3 is a cross-sectional view of another main part of the drum-type washing machine according to Embodiment 1 of the present invention. FIG. 4 is a cross-sectional view of a drum type washing machine according to Embodiment 2 of the present invention. FIG. 5 is a sectional view of a drum-type washing machine according to Embodiment 3 of the present invention. FIG. 6 is a sectional view of a drum type washing machine according to Embodiments 4 to 8 of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following drawings, the same components are denoted by the same reference numerals, and the description thereof may be omitted. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a cross-sectional view of a drum-type washing machine according to Embodiment 1 of the present invention. FIG. 1 shows a support structure of an outer tub 33 in which an outer tub 33 is supported by a suspension 31 and a vibration damping damper 32 with respect to a washing machine outer frame 30 of the drum type washing machine. FIG. 2 is a cross-sectional view of a main part of the drum-type washing machine according to Embodiment 1 of the present invention, with a part cut away, and shows main components around the suspension position setting part 57 of the outer tub 33. Is. FIG. 3 is a cross-sectional view of another main part of the drum type washing machine according to Embodiment 1 of the present invention, and shows the vibration damping damper 32 and the surrounding support part of the drum type washing machine.

In the cross-sectional views of the drum type washing machine of FIGS. 1 to 3, the outer tub 33 accommodates a washing / dehydrating tub 34 inside thereof, and a rotating shaft 34 a of the washing / dehydrating tub 34 is provided on the back surface of the outer tub 33. The bearing 60 is pivotally supported. At the same time, the outer tub 33 is connected to the drive motor 35 via the rotating shaft 34 a of the washing and dewatering tub 34. The drive motor 35 is composed of a brushless DC motor, and is controlled by an inverter so that the rotation speed can be freely changed. The drive motor directly drives the washing / dehydrating tub 34. The laundry 15 is accommodated in the washing / dehydrating tub 34. When the washing / dehydrating tub 34 is driven, the laundry 15 receives the centrifugal force 16 in the direction of the arrow shown in FIG.

The water supply unit 36 supplies water into the washing and dewatering tub 34 through a water supply pipe 36a. The water level detection unit 37 detects the washing water level in the outer tub 33. The drainage part 38 drains the washing water in the outer tub 33. A control unit 39 that controls each component of the drum type washing machine is provided at the lower front portion of the washing machine outer frame 30. The control unit 39 sequentially controls each of the washing, rinsing, and dehydration processes based on the setting content input by the operation display unit 40 provided on the upper front surface of the washing machine outer frame 30. The power switching unit ( The drive motor 35, the water supply unit 36, the drainage unit 38, and the like are sequentially controlled via a not-shown).

The outer tub 33 is disposed in the washing machine outer frame 30 so as to be inclined upward, and its weight is supported by a pair of left and right vibration damping dampers 32 attached to the bottom of the washing machine outer frame 30. ing. Since the outer tank 33 is attached with heavy components such as the bearing 60 and the drive motor 35 on the back side thereof, the center of gravity is located closer to the back surface, and the pair of left and right vibration damping dampers 32 are provided on the outer tank 33. It is supported below the front of the center of gravity. Note that the outer tub 33 is disposed at an inclination angle of 20 degrees to 30 degrees as shown in FIG.

The outer tub 33 is elastically supported by, for example, a tension spring that constitutes a suspension portion 31 between the upper surface of the washing machine outer frame 30 and the upper portion of the outer tub 33. The position of the suspension 31 of the outer tub 33 is set as will be described later by the output of the sensor of the state detector 61 that detects the state of the outer tub 33. That is, the control unit 39 controls the outer tub 33 to be elastically supported in a balanced manner at a predetermined position in the washing machine outer frame 30 by the position of the suspension unit 31.

In addition, the state detection part 61 incorporates the above-mentioned sensor, The position of the outer tub 33 in the washing machine outer frame 30 and the angle of the outer tub 33 with respect to a horizontal surface are detected by this sensor.

The suspension position setting section 57 that sets the position of the suspension section 31 that suspends the outer tub 33 is configured as shown in FIG. One end on the outer tub 33 side of the tension spring 31 that elastically supports between the upper surface of the washing machine outer frame 30 and the upper portion of the outer tub 33 is a suspension position setting unit that slides a guide rail 55 formed on the upper portion of the outer tub 33. 57 slide members 50 are coupled. Both ends of the slide member 50 are coupled by a wire 51 and a wire 53, respectively. The state of the outer tub 33 is detected by the state detector 61 that detects the state of the outer tub 33 suspended by the suspending portion 31 as described above, and the control unit 39 controls the outer tub 33 to be elastically supported in a balanced manner. ing.

That is, the wire 51 and the wire 53 connected to the slide member 50 are guided by the pulley 58 and the pulley 59, and are wound and unwound by the wire winding device 52 and the unwinding device 54, and then the slide member 50 is wound. By changing the position of the outer tub 33, the outer tub 33 is supported in a balanced manner.

As shown in FIG. 3, the vibration damper 32 includes an oil damper mechanism 78 in which oil (not shown) is sealed in a cylinder 78 a and a coil spring mechanism 79 provided coaxially with the oil damper mechanism 78. Has been. A support shaft 84 fixed to the lower end of the oil damper mechanism 78 and having a coil spring mechanism 79 disposed on the outer periphery thereof is fixed to a support base 41 fixed to the base of the washing machine outer frame 30 via a cushioning material 42. Yes. Further, the piston rod 85 constituting the oil damper mechanism 78 is fixed to the lower support bracket 45 fixed to the lower portion of the outer tub 33 via the cushioning material 42.

As described above, in the first embodiment, the outer tub 33 is attached to the outer frame of the washing machine without causing an increase in the weight of the outer tub 33 even when the position of the center of gravity of the outer tub 33 changes depending on the amount of the laundry 15 or the amount of water. 30 can be elastically supported in a well-balanced manner. Therefore, vibration applied to the outer tub 33 can be effectively suppressed. Even if the rigidity of the tension spring 31 that suspends the outer tub 33 and the rigidity of the window packing 49 that couples the outer tub 33 and the washing machine outer frame 30 are lowered, the outer tub 33 is placed in the washing machine outer frame 30. It can be elastically supported with good balance. Thereby, vibration transmission to the washing machine outer frame 30 and the installation floor can be further suppressed.

That is, the drum type washing machine of the present invention includes an outer tub 33 elastically supported in the washing machine outer frame 30, a washing / dehydrating tub 34 rotatably provided in the outer tub 33, and the washing / dehydrating tub. Drive motor 35 for rotating 34, and suspension 31 for elastically supporting outer tub 33 in washing machine outer frame 30. The drum type washing machine includes a suspension position setting unit 57 that sets the position of the suspension unit 31, a state detection unit 61 that detects the state of the outer tub 33, and a control unit 39 that controls the suspension position setting unit 57. In addition, the control unit 39 sets the position of the suspension unit 31 based on the output of the state detection unit 61.

With such a configuration, the outer tub 33 that accommodates the washing and dewatering tub 34 is elastically supported in a well-balanced manner within the washing machine outer frame 30 even if the weight and the center of gravity vary depending on the laundry 15 and the amount of water. . Thereby, the drum type washing machine can effectively suppress vibration applied to the outer tub 33 and can operate stably.

(Embodiment 2)
FIG. 4 is a cross-sectional view of the drum type washing machine according to the second embodiment of the present invention, and shows a structure of the state detection unit 61 of the outer tub 33 in a part thereof.

Position detection sensors

70 and 71 for detecting the position of the outer tub 33 are used for the state detection unit 61 for detecting the state of the outer tub 33. As shown in FIG. 4, the

position detection sensors

70 and 71 that detect the position of the outer tub 33 are configured in two places. That is, the position detection sensor 70 is disposed on the lower front side of the washing machine outer frame 30, and the position detection sensor 71 is disposed on the upper rear side of the washing machine outer frame 30 to detect the state of the outer tub 33.

The

position detection sensors

70 and 71 include a laser displacement meter (not shown), and the laser displacement meter is used to laser the

flat plates

72 and 73 installed in the outer tub 33 from the outer frame 30 of the washing machine.

Lights

70a and 71a are projected. The distance between the outer tub 33 and the washing machine outer frame 30 is measured by the

laser beams

70a and 71a, and the state of the outer tub 33 is detected from a temporal change in the measured distance. Other configurations are the same as those of the drum type washing machine shown in the first embodiment, and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

By the way, the position of the center of gravity of the outer tub 33 containing the washing / dehydrating tub 34 varies depending on the type and amount of the laundry 15 contained in the washing / dehydrating tub 34 and the amount of water. At this time, the outputs of the

position detection sensors

70 and 71 for detecting the position of the outer tub 33 are transmitted to the control unit 39, and the position of the slide member 50 of the suspension unit 31 is controlled by the control unit 39 to move. As a result, the outer tub 33 is elastically supported at a predetermined position in the washing machine outer frame 30 with a good balance. As a result, the vibration of the outer tub 33 is suppressed, and the outer tub 33 collides with the washing machine outer frame 30 even when the outer tub 33 swings vigorously during dehydration activation due to the eccentric load of the laundry 15. That can be suppressed.

That is, for example, the position of the outer tub may be detected by the state detection unit 61 of the drum type washing machine such as the

position detection sensors

70 and 71 described above.

With this configuration, the outer tub 33 that accommodates the washing and dewatering tub 34 detects the position of the outer tub 33 even if the position of the center of gravity changes depending on the type and amount of the laundry 15 and the amount of water. The control unit 39 that receives the outputs of the

sensors

70 and 71 is elastically supported at a predetermined position in the washing machine outer frame 30 in a balanced manner. Accordingly, vibration of the outer tub can be suppressed and collision of the outer tub 33 with the washing machine outer frame 30 can be suppressed even when the outer tub 33 is vigorously swung.

(Embodiment 3)
FIG. 5 is a cross-sectional view of the drum type washing machine according to Embodiment 3 of the present invention, and shows a structure of the state detection unit 61 of the outer tub 33 in a part thereof. An angle detection sensor 74 that detects the angle of the outer tub 33 is used as the state detection unit 61 that detects the state of the outer tub 33. As shown in FIG. 5, the angle detection sensor 74 that detects the angle of the outer tub 33 is disposed on the upper front side of the outer tub 33 and detects the state of the inclination angle of the outer tub 33. As the angle detection sensor 74, for example, an acceleration sensor is used. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

By the way, the position of the center of gravity of the outer tub 33 containing the washing / dehydrating tub 34 varies depending on the type and amount of the laundry 15 contained in the washing / dehydrating tub 34 and the amount of water. At this time, the output of the angle detection sensor 74 that detects the angle of the outer tub 33 is transmitted to the control unit 39, and the position of the slide member 50 of the suspension unit 31 is controlled by the control unit 39 to move. As a result, the outer tub 33 is elastically supported at a predetermined position in the washing machine outer frame 30 with a good balance. As a result, the vibration of the outer tub 33 is suppressed, and the outer tub 33 collides with the washing machine outer frame 30 even when the outer tub 33 swings vigorously during dehydration activation due to the eccentric load of the laundry 15. That can be suppressed.

That is, for example, the angle detection sensor 74 may be used to detect the angle of the outer tub 33 by the state detection unit 61.

With this configuration, the outer tub 33 that houses the washing / dehydrating tub 34 is a sensor that detects the angle of the outer tub 33 even if the position of the center of gravity changes depending on the type and amount of the laundry 15 and the amount of water. The controller 39 that has received the output is elastically supported at a predetermined angle inside the washing machine outer frame 30 without falling forward or backward. This can prevent the outer tub 33 from colliding with the washing machine outer frame 30 even when the outer tub is vigorously swung at the start of dehydration due to the eccentric load of the laundry 15.

(Embodiment 4)
FIG. 6 is a cross-sectional view of the drum type washing machine according to the fourth embodiment of the present invention, and shows a state of the suspension portion 31 that elastically supports the outer tub 33 at a part thereof.

As shown in FIG. 6, a laundry load detection unit 62 that detects the amount of the laundry 15 is provided, and an output of the laundry load detection unit 62 and a sensor of the state detection unit 61 of the outer tub 33 (for example, position detection sensors 70 and 71). And the output of the angle detection sensor 74) are transmitted to the control unit 39, and the position of the suspension unit 31 is set by the control unit 39 before washing. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

In the drum-type washing machine of FIG. 6, in the unloaded state where the laundry 15 is not put in, the center of gravity 90 of the outer tub 33 is behind the anti-vibration damper 32, and the outer tub 33 falls back. Accordingly, the slide member 50 to which one end of the suspension portion 31 is fixed is disposed at a position C in FIG. 6 behind the position of the center of gravity 90 of the outer tub 33. However, when the amount of the laundry 15 increases and the gravity center 91 of the outer tub 33 is positioned near the vibration damper 32, the slide member 50 is disposed at the position B in FIG. 6 near the position of the gravity center 91 of the outer tub 33. . Further, when the amount of the laundry 15 increases to reach the maximum load, the slide member 50 also moves to the front A from the position B in FIG. 6 as the center of gravity 92 of the outer tub 33 moves before the vibration damping damper 32. Arranged to move to a position.

As described above, the state of the outer tub 33 is detected by the state detection unit 61 according to the amount of the laundry 15 before washing, and the output is transmitted to the control unit 39, so that the outer tub 33 has the washing machine outer frame 30. Since it is controlled by the control unit 39 so as to be elastically supported at a predetermined position in the inner space, the outer tub 33 can be held at a position where the laundry can be easily put.

That is, in the drum type washing machine of the fourth embodiment, the laundry load detection unit 62 that detects the amount of the laundry 15 is further provided, and the control unit 39 includes the laundry load detection unit 62 and the state detection unit 61 of the outer tub 33. It is good also as a structure which set the position of the suspension part 31 before starting washing by output.

With such a configuration, the control unit 39 removes the outer tub 33 from the washing machine by the output of the sensor of the state detection unit 61 that detects the state of the outer tub 33 according to the amount of the laundry 15 before washing. Control is performed so as to be elastically supported at a predetermined position in the frame 30 in a balanced manner. Thus, the outer tub 33 can be held at a position where the laundry 15 can be easily charged at any time.

(Embodiment 5)
The drum type washing machine according to the fifth embodiment of the present invention is configured to further include a water level detection unit 37 for detecting the amount of water supplied into the washing and dewatering tub 34 by the water supply unit 36 as shown in FIG. And the control part 39 is set as the structure which set the position of the suspension part 31 during washing by the output of the water level detection part 37 and the state detection part 61 of the outer tub 33. FIG. That is, the control unit 39 sets the position of the suspension unit 31 during washing based on outputs from the washing load detection unit 62, the water level detection unit 37, and the sensor of the state detection unit 61 of the outer tub 33. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 6, as the amount of the laundry 15 increases and the amount of water also increases, the center of gravity of the outer tub 33 moves forward from the anti-vibration damper 32, and the outer tub 33 falls to the front. Accordingly, the slide member 50 to which one end of the suspension portion 31 is fixed is disposed at the position A in FIG. 6 ahead of the center of gravity of the outer tub 33.

In this way, the outer tub 33 is detected by the output of the state detection unit 61 according to the amount of the laundry 15 and the amount of water during washing, and the output is transmitted to the control unit 39 so that the outer tub 33 is It is controlled so as to be elastically supported in a balanced manner at a predetermined position in the washing machine outer frame 30. Accordingly, even when the amount of the laundry 15 and the amount of water are large, the window packing 49 is not crushed by the forward tilting of the outer tub 33, and the outer tub 33 can be prevented from colliding with the washing machine outer frame 30.

That is, in the drum-type washing machine of the fifth embodiment, the water level detection unit 37 that detects the amount of water in the outer tub is further provided, and the control unit 39 includes the water level detection unit 37 and the state detection unit 61 of the outer tub 33. It is good also as a structure which set the position of the suspension part 31 during washing by output.

With such a configuration, the control unit 39 washes the outer tub 33 by the output of the sensor of the state detection unit 61 that detects the state of the outer tub 33 according to the amount of the laundry 15 and the amount of water during washing. Control is performed so as to be elastically supported at a predetermined position in the machine outer frame 30 in a balanced manner. This prevents the outer tub 33 from colliding with the washing machine outer frame 30 without collapsing the window packing 49 due to the forward tumbling of the outer tub even when the amount of the laundry 15 and the amount of water are large.

(Embodiment 6)
In the drum type washing machine according to the sixth embodiment of the present invention, as shown in FIG. 6, the position of the suspension portion 31 is determined during or after drainage by the outputs of the water level detection unit 37 and the state detection unit 61 of the outer tub 33. It is set at a predetermined position. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 6, the center of gravity of the outer tub 33 moves forward from the anti-vibration damper 32 and the outer tub 33 falls forward as the amount of the laundry 15 and the amount of water increase during washing. Accordingly, the slide member 50 to which one end of the suspension portion 31 is fixed is disposed at a position A in FIG. 6 ahead of the center of gravity of the outer tub 33. As the water is drained from the washing / dehydrating tub 34, the center of gravity of the outer tub 33 moves rearward, so the slide member 50 is moved from the A position to the rear B position by the control unit 39.

Thereby, since the outer tub 33 is elastically supported in a well-balanced position in the washing machine outer frame 30 immediately before dehydration, the vibration of the outer tub 33 is suppressed. At the same time, it is possible to prevent the outer tub 33 from colliding with the outer frame 30 of the washing machine even when a severe swinging motion of the outer tub 33 at the time of dehydration activation due to the eccentric load of the laundry 15 occurs.

That is, in the drum-type washing machine of the sixth embodiment, the control unit 39 sets the position of the suspension unit 31 during or after draining, based on outputs from the water level detection unit 37 and the state detection unit 61 of the outer tub 33. It is good also as such a structure.

By adopting such a configuration, the control unit 39 cleans the outer tub 33 by the output of the sensor of the state detection unit 61 that detects the state of the outer tub 33 in which the center of gravity changes depending on the laundry 15 or the amount of water immediately before dehydration. Control is performed so as to be elastically supported at a predetermined position in the machine outer frame 30 in a balanced manner. Accordingly, vibration of the outer tub 33 can be suppressed, and collision of the outer tub 33 with the washing machine outer frame 30 due to intense swinging motion of the outer tub 33 at the start of dehydration due to the eccentric load of the laundry 15 can be suppressed. .

(Embodiment 7)
The drum type washing machine according to the seventh embodiment of the present invention, as shown in FIG. 6, before drying or after drying is started after the start of washing depending on the output of the water level detection unit 37 and the output of the sensor of the state detection unit 61 of the outer tub 33. The position of the suspension part 31 is set to a predetermined position. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 6, after dehydration, the center of gravity of the outer tub 33 moves rearward, so that the control member 39 moves the slide member 50 from the B position to the rear C position. As a result, the outer tub 33 is elastically supported in a well-balanced position in the washing machine outer frame 30 after the start of washing before or during drying, so that even when the amount of the laundry 15 is large, the outer tub 33 is being dried. It is possible to prevent 33 from colliding with the washing machine outer frame 30.

That is, in the drum type washing machine of the seventh embodiment, the control unit 39 determines the position of the suspension unit 31 before or during drying based on the outputs of the washing load detection unit 62 and the state detection unit 61 of the outer tub 33. It may be configured to be set.

With such a configuration, the control unit 39 causes the controller 39 to output the state of the outer tub 33 according to the amount of the laundry 15 after the start of washing or before drying, based on the output of the sensor of the state detector 61. The outer tub 33 is controlled to be elastically supported in a balanced manner at a predetermined position in the washing machine outer frame 30. Thereby, even when the amount of the laundry 15 is large, it is possible to prevent the outer tub 33 from colliding with the washing machine outer frame 30 during drying.

(Embodiment 8)
As shown in FIG. 6, the drum-type washing machine according to the sixth embodiment of the present invention, after the end of washing and dehydration or after the end of drying, depends on the output of the water level detection unit 37 and the output of the sensor of the state detection unit 61 of the outer tub 33. The position of the suspension part 31 is set to a predetermined position. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 6, the slide member 50 is moved from the B position to the C position in FIG. Thereby, the outer tub 33 can be set to a position where the laundry 15 can be easily taken out.

That is, in the drum type washing machine according to the eighth embodiment, the control unit 39 sets the position of the suspension unit 31 after the laundry dehydration is finished or after the drying is finished by the output of the state detection unit 61 of the outer tub 33. It is good also as a structure.

By adopting such a configuration, the state of the outer tub 33 can be set to a predetermined position after dehydration or after drying, so that the outer tub 33 can be set to a position where the laundry 15 can be easily taken out.

As described above, the drum-type washing machine according to the present invention can support the outer tub whose center of gravity changes depending on the amount of laundry and the amount of water in the outer frame of the washing machine in a well-balanced manner. Therefore, it is useful as a drum type washing machine.

30 Washing machine outer frame 31 Tension spring (suspension part)
32 Anti-vibration damper 33 Outer tub 34 Washing / dehydration tub 34a Rotating shaft 35 Drive motor 36 Water supply part 36a Water supply pipe 37 Water level detection part 38 Drain part 39 Control part 57 Suspension position setting part 61 State detection part 62 Washing load detection part

Claims

An outer tub elastically supported in the outer frame of the washing machine;
A washing and dewatering tub provided rotatably in the outer tub;
A drive motor for rotating the washing and dewatering tub;
A suspension for elastically supporting the outer tub in the outer frame of the washing machine;
A suspension position setting unit for setting the position of the suspension unit;
A state detector for detecting the state of the outer tub;
A control unit for controlling the suspension position setting unit,
The said control part is a drum type washing machine which set the position of the said suspension part by the output of the said state detection part.
The drum type washing machine according to claim 1, wherein the state detection unit detects the position of the outer tub.
The drum type washing machine according to claim 1, wherein an angle of the outer tub is detected by the state detection unit.
A laundry load detector for detecting the amount of laundry is further provided.
The control unit according to any one of claims 1 to 3, wherein the position of the suspension unit is set before starting washing based on outputs from the washing load detection unit and the state detection unit of the outer tub. The drum-type washing machine according to Item.
A water level detector for detecting the amount of water in the outer tub,
The drum according to any one of claims 1 to 3, wherein the control unit sets the position of the suspension unit during washing based on outputs from the water level detection unit and the state detection unit of the outer tub. Type washing machine.
The drum-type washing machine according to claim 5, wherein the control unit sets the position of the suspension unit during or after draining according to outputs of the water level detection unit and the state detection unit of the outer tub.
The said control part sets the position of the said suspension part before drying or during drying after washing start by the output of the said washing load detection part and the said state detection part of the said outer tub. Drum-type washing machine.
The drum according to any one of claims 1 to 3, wherein the control unit sets the position of the suspension unit after completion of washing and dehydration or after completion of drying based on an output of the state detection unit of the outer tub. Type washing machine.