KR20020091795A - Drum-type washing machine - Google Patents

Abstract

PURPOSE: To obtain a reliable and inexpensive structure of a balance adjusting balancer which eliminates vibration caused by the uneven distribution of laundry in spin-drying. CONSTITUTION: The balancer 20 is attached to the rear part of a rear board 6d of a drum 6, which has a plurality of water storing chambers that are respectively divided by radial partitioning walls in the circumference of a main shaft 7 and respectively provided with an opening for a water flow at an inner peripheral side. A nozzle 30 for pouring water into each storing chamber is arranged in the rear side surface part of an outer tub 3. After the whole water storing chambers are filled with water injected from the nozzle 30, a part of water is discharged by the temporary reduction of the rotary speed of the drum 6 in response to an eccentric load by the uneven distribution of the laundry so that balance is adjusted. The balancer 20 is made of a member obtained by joining two members by thermal melt-sticking, which are divided on a plane being orthogonally crossed with an axis. A double wall structure is adopted in the partitioning walls to be a joining part and an outer peripheral wall so as to prevent the fall of an abutment piece in the case of thermal melt-sticking and also to prevent a break owing to a force which is received from the stored water in the case of centrifugal dehydration.

Description

Drum-type washing machine {DRUM-TYPE WASHING MACHINE}

The present invention relates to a drum type washing machine having a drum rotating about a horizontal axis or an inclined axis. Moreover, in general, the drum type washing machine can often perform the washing to drying continuously, but the drum type washing machine referred to herein may not be able to dry.

The drum type washing machine has a structure in which a cylindrical basket drum is rotatably arranged around a horizontal axis or an inclined axis. During the dehydration operation, the drum type washing machine rotates the drum containing the wet laundry at high speed to move the water contained in the laundry around. It is scattered and removed. One of the major problems in this centrifugal dehydration is that when the drum is rotated at a high speed while laundry is distributed unevenly on the inner wall of the drum, an uneven tank journaling the drum or the drum is caused by an imbalance in the mass distribution around the rotating shaft. Or the outer box vibrates abnormally, producing a loud noise or causing a heavy load on the bearings or the main shaft itself, causing failure.

As one of the means for solving the problem as described above, the present applicant proposes a drum type washing machine of a novel configuration by Japanese Patent Application No. Hei 11-203822 (see Japanese Patent Laid-Open No. 2001-29682). In this washing machine, a plurality of reservoirs whose inner circumferential side is opened around the main shaft of the drum are arranged radially. On the other hand, the outer tank is provided with a water injection nozzle so that the water can be injected into the reservoir even if the drum is rotating. In the dehydration operation, first, the drum is slowly rotated to empty all the storage chambers, and then the rotational speed of the drum is increased to determine whether there is an eccentric load due to the uneven distribution of the laundry. When the eccentric load exceeds the allowable value, water is ejected from the water injection nozzle, the water is once filled in all the storage chambers, and then the drum is temporarily decelerated at a timing corresponding to the position of the eccentric load, thereby The water is dropped to reduce its weight, thereby balancing the entire drum with the weight of water remaining in the reservoir with the eccentric load by the laundry. The balance adjustment in this way has the advantage that the eccentric load can be reliably and quickly reduced, and the shift can be made to a high speed dewatering operation.

In the drum type washing machine of the above-mentioned structure, it is necessary to install the sort of balancer which formed the water storage chamber in the drum, and also the water supply mechanism which can fill water into those water storage chambers. This leads to a considerable cost increase compared to the case where such a mechanism is not provided. Therefore, how to curb this cost is one of the biggest problems.

One way to curb these costs is to lower the cost of each component while reducing the number of components. However, as for the water storage chamber, since it rotates at a high speed integrally with the drum, especially when the water rotates at a high speed while the water is stored therein, the centrifugal force acting on the water imparts a large load to the water storage chamber. Failure to do so may cause problems such as damage or water leakage. Therefore, it is required to have a rigid structure while suppressing the cost. Moreover, another method of restraining cost is to make it easy to perform the inspection for finding assembly defects and the like in a short time.

Moreover, in the drum type washing machine of the said structure, in order to install a water storage room in a drum, there exists a possibility that only the part needs to enlarge an outer box. In addition, if the size of the outer box is to be the same, the drum size must be reduced, which may reduce the washing capacity.

The drum type washing machine according to the present invention has been made to solve these problems, and its main purpose is to effectively suppress vibration caused by the ubiquity of laundry during centrifugal dehydration, while suppressing an increase in cost and generating a failure. There is provided a low reliability drum type washing machine. Moreover, in order to attain such low cost, it is providing the drum type washing machine which can simplify an inspection process.

In addition, another object of the present invention is a drum type washing machine that is capable of effectively suppressing vibration caused by uneven distribution of laundry during centrifugal dehydration, and avoids an increase in external appearance or a decrease in washing capacity. To provide.

Figure 1 is a side longitudinal cross-sectional view showing the overall configuration of the drum type washing machine according to an embodiment of the present invention.

Fig. 2 is a rear perspective view of the main part in the drum type washing machine of this embodiment.

Fig. 3 is a partial plan view of the balancer in the drum type washing machine of this embodiment.

4 is a cross-sectional view taken along the line A-A ', B-B' and C-C 'in FIG. 3;

5 is an enlarged view of part E in FIG. 1;

6 is an enlarged view of a portion F in FIG. 1;

7 is an electric system configuration diagram of a main part of the drum type washing machine of the present embodiment.

8 is a control flowchart during dewatering stroke in the drum type washing machine of the present embodiment.

Fig. 9 is a schematic diagram showing the state of water inside the balancer at the time of balance adjustment in the drum type washing machine of this embodiment.

Fig. 10 is a partial plan view showing a modification of the balancer.

Figure 11 is a side longitudinal cross-sectional view showing the overall configuration of the drum washing machine according to another embodiment.

<Explanation of symbols for the main parts of the drawings>

1: outer box

2: door

3: outer bird

6: drum

6a: main body

6b: front plate

6c: opening

6d: rear faceplate

6f: Flange

7: main axis

8: bearing case

8a: Flange

9: bearing

10: motor

10a: stator

10b: rotor

11: water supply

11a: water inlet

11c: adjusting valve

20: Balancer

20a: first member

20b: second member

20c: Burr

21: main wall

21a: bottom of the drip tray

21b: standing wall

21c: horizontal member

21d: opening

22: facing wall

22a: slope

23: outer wall

24: bulkhead

24a: first wall portion

24b: second wall

24c: water-proof member

25: reservoir

25a: water passage opening

26 room

26a: hole

27: screw mounting hole

28: screw

30: nozzle

31: water supply passage

50: fluid balancer

The first drum-type washing machine according to the present invention made to solve the above problems is to arrange the drum rotatably about a horizontal axis or an inclined axis in the outer tub, and to rotate the drum at high speed to centrifugal dewatering of the laundry contained in the drum. In the drum type washing machine to run,

In order to adjust the balance of the drum around the rotating shaft during centrifugal dehydration,

a) a balancer having a plurality of reservoirs configured to be capable of storing water therein by centrifugal force acting when the drum rotates, in a state of circumferentially arranged around the axis of rotation of the drum;

b) balance adjusting means including watering means for watering non-contact water in each of said reservoirs of said balancer,

The balancer is formed by joining the contact portions of the first member and the second member, respectively, formed by dividing into two at least orthogonal or obliquely intersecting the rotational axis, and the joining portion is a double wall structure provided with a gap therebetween. It features.

For example, the water storage chamber may be configured to be partitioned by radial partitions around the rotation axis of the drum, respectively.

In this configuration, the contact portion includes a partition wall for partitioning each reservoir, an outer circumference wall for blocking the outer circumferential side of the reservoir, and the like. In the first drum type washing machine, since such a joining portion has a double wall structure, the joining portion has a high rigidity, and even when the contact portion between the first member and the second member is brought into contact with a certain pressing force at the time of joining by heat welding or the like, the wall portion It is hard to generate | occur | produce a fall, and can join a contact site reliably. Therefore, according to this 1st drum type washing machine, the yield in the process of manufacturing a balancer is improved significantly and as a result, the cost can be reduced.

In the first drum type washing machine, when the drum or the balancer rotates at a high speed around the rotary shaft while water is stored in the reservoir, a large force is applied to the wall surrounding each reservoir by centrifugal force or inertial force acting on the water. All. The junction part of a 1st member and a 2nd member is exposed to the wall part which faces in a reservoir, including the partition which partitions each storage chamber, and such a junction part is inferior to other continuous wall surface normally. On the other hand, in the 1st drum type washing machine which concerns on this invention, since this joining site | part has a double wall structure, it has high strength. Therefore, even if a large force as described above is applied from the inside at the time of centrifugal dewatering, the wall portion can be prevented from falling or the joining portion is damaged.

In the said 1st drum type washing machine, especially the 1st member and the 2nd member which comprise the said balancer can be formed with a synthetic resin material, and the said joining can be made by heat welding. According to this, a balancer can be made cheap and manufacturing cost can also be reduced.

Moreover, in the said 1st drum type washing machine, it is preferable to set it as the structure which the said balancer has the space | gap clamped by the wall part of the said double-walled structure as one sealed space as a whole, and the said sealed space is provided with the only hole which communicates with the outside. .

According to this configuration, since all the joining sites face the sealed spaces, it is possible to check whether there is a problem in the joining sites by checking the sealedness of the sealed spaces, that is, the presence or absence of air leakage. That is, for example, when the air of predetermined pressure is supplied into the said sealed space from the said hole, and it seals, and when the pressure falls with passage of time, what is necessary is just to judge that any part of a joining site has a joining failure. . In this way, since it is possible to judge the good and bad of the entire junction part of one balancer by one inspection, the time and effort required for the inspection of the balancer are greatly reduced.

In addition, when joining synthetic resin members by welding etc., generation | occurrence | production of what is called "burr" which melt | dissolved resin protruded outward from the joining site | part and solidified is difficult to be avoided. Thus, in the first drum type washing machine, the joint portion exposed to the inner circumferential side of the flange portion protruding to the edge portion of one of the end face side of the drum peripheral surface whose outer circumferential wall of the balancer is cylindrical, and also to the outer circumferential wall outer surface of the balancer. The balancer may be attached to the drum such that the balancer is positioned outside the flange portion in the stretching direction of the rotary shaft.

According to this structure, even if a burr protrudes on the joint site exposed to the outer peripheral wall outer surface of the balancer, this does not interfere when the balancer is attached to the drum. Therefore, it is not necessary to remove the burr by grinding or the like, which is very advantageous for lowering the manufacturing cost of the balancer.

The second drum type washing machine according to the present invention, which is made to solve the above problems, arranges a drum rotatably about a horizontal axis or an inclined axis in an outer tank, and centrifugally dewaters laundry of the laundry contained in the drum by rotating the drum at high speed. In the drum type washing machine,

In order to adjust the balance of the drum around the rotating shaft during centrifugal dehydration,

a) a balancer having a plurality of reservoirs arranged side by side in the circumferential direction around the rotational axis of the drum, each having an opening on the inner circumferential side and configured to allow storage of water flowing through the opening inside by centrifugal force;

b) balance adjusting means comprising: a nozzle for injecting water against the balancer and water supply means for supplying water to the nozzle for non-contact watering in each of the reservoir chambers of the balancer; And

The balancer has a flat surface that is substantially orthogonal to the rotational axis on the inner circumferential side of the water storage chamber, and has a standing portion standing up from the flat surface on the inner circumferential side, and the nozzle is directed toward the flat surface below the rotating shaft. It is installed in the position which blows out, It is characterized by making the water which contacted the said flat surface flow down along the said flat surface, and to let it flow into the storage chamber below.

According to the second drum type washing machine, even if the water ejected from the nozzle and touched the flat surface tries to face the inner circumferential side more, it is hindered by the standing portion and returns to the outer circumferential side. Therefore, the water which touched the flat surface efficiently flows into the reservoir, and as a result, the time required for the balance adjustment can be shortened, and the amount of water required for the balance adjustment is reduced, resulting in saving water.

Also, by slowly rotating the drum or temporarily lowering the rotational speed, the centrifugal force acting on the water stored in the reservoir is reduced so that the water flows out of the opening. It is desirable to prevent the inflow into other reservoirs. Therefore, the balancer can be configured to have an extension member which extends inward from the inside of the standing portion.

According to this configuration, once the water flowing out from the reservoir of the balancer is returned to the back of the balancer, it is difficult to return to the opening side of the other reservoir because it is obstructed by the extension member, thereby preventing the flow into the other reservoir, thereby making it into the outer tank. To move smoothly away from the drain.

In the balancer, each of the reservoir compartment inlet openings may be provided with a water inhibiting member that is substantially vertical in the radial direction and prevents the outflow of water toward the front side in the direction in which the drum rotates during centrifugal dehydration. . According to this configuration, when the drum's rotational speed is temporarily lowered to overflow the water in a specific reservoir, the water stored during rotation from the top of the drum to the bottom by the force of gravity and inertia is added together. We can block water to try to flow out of thread. Therefore, it is possible to effectively prevent unwanted water from escaping from the reservoirs other than the target reservoir.

In addition, although it is necessary to prevent unwanted water from escaping from the water storage chamber, if the water is too difficult to be drained, it may cause a problem such as that it takes time when water is to be drained. Thus, in order to achieve a proper balance between water draining and water draining, the water inhibiting member may be configured to have an area substantially the same as that of the opening.

Moreover, in the balancer, it is preferable that each said storage chamber is concave shape so that it may become thick in the extending direction of the said rotating shaft in the outer peripheral side, and become thin in the inner peripheral side. According to this structure, the rotation drive member (a motor in the case of a direct drive system) located in the concave side can be arrange | positioned adjacent to a balance as much as the part which the water storage chamber concave to the inner peripheral side. Therefore, the whole becomes dense in the rotational axis extending direction of a drum, and it is advantageous for making the dimension of an outer box small. In addition, when the water storage chamber is made thick on the outer circumferential side, even if it is made thin on the inner circumferential side, the inner volume of the water storage chamber can be secured and the adjustable range of the eccentric amount can be secured widely.

In the third drum type washing machine according to the present invention made to solve the above problems, a drum is disposed in an outer tank so as to be rotatable about a horizontal axis or an inclined axis, and the drum is rotated at high speed so that centrifugal dewatering of the laundry contained in the drum is rotated. In the drum type washing machine,

In order to adjust the balance of the drum around the rotating shaft at the time of centrifugal dehydration, the drums are arranged side by side in the circumferential direction around the rotating shaft of the drum, each having an opening on the inner circumferential side, and the water flowing through the opening is moved inside by the centrifugal force. It is provided with the balancer which has a some storage chamber comprised so that storage is possible,

The balancer is characterized in that each of the water storage chambers has a size larger in the radial direction than the circumferential direction.

According to this structure, since a lot of water storage chambers can be formed in a circumferential direction, the adjustment regarding the position and magnitude | size of an eccentric load at the time of balance adjustment can be performed more finely and immediately.

A fourth drum type washing machine according to the present invention, which is made to solve the above problems, arranges a drum rotatably about a horizontal axis or an inclined axis in an outer tub, and centrifugally dehydrates the laundry contained in the drum by rotating the drum at high speed. In the drum type washing machine,

In order to adjust the balance of the drum around the rotating shaft during centrifugal dehydration,

a) a balancer having a plurality of reservoirs arranged side by side in the circumferential direction around the rotational axis of the drum, each having an opening on the inner circumferential side and configured to allow storage of water flowing through the opening inside by centrifugal force;

b) balance adjusting means comprising: a nozzle for injecting water against the balancer and water supply means for supplying water to the nozzle for non-contact watering in each of the reservoir chambers of the balancer; And

In the said drum, the said balancer is arrange | positioned at the end surface side of the side which fixedly attached the said rotating shaft, the said nozzle is provided in the end surface side of the said outer tank which opposes the said drum end surface, and the said outer tank end surface, and The said water supply flow path is arrange | positioned through the flange part of the bearing case fixedly attached to an outer tub end surface.

All rotary bodies, such as a pulley, are attached to the rotating shaft edge part which protruded outward from the said outer tank end surface, and a pulley transmission mechanism, such as a rotor of a motor and a belt drive system, if it is a direct drive system. Even if the water supply flow path is any one of a flexible hose made of a synthetic resin, a pipe, etc. made of metal, contact with the rotating body in a rotating state may cause damage or damage. According to the structure of the said 4th drum type washing machine, a water supply flow path is protected by the flange part of a bearing case, and it does not contact with a rotating body even when a vibration etc. are applied, for example. For this reason, breakage or damage of a water supply flow path can be prevented and high reliability can be maintained. In addition, even if the water supply flow path is broken and water leaks, it is possible to prevent water from scattering toward the rotor by the flange portion of the bearing case, thereby reducing the possibility of water being applied to electrical parts such as a motor.

Moreover, in the case of the direct drive system which rotationally drives the said drum by the motor directly connected to the said rotating shaft, the said bearing case can be set as the structure which uses the motor stand which fixes the stator of the said motor. As a result, the configuration is simple and the cost is low.

In the fifth drum type washing machine according to the present invention made to solve the above problems, the peripheral surface is fixedly attached to one end surface of a drum having a substantially cylindrical shape, and the end surface opposite to the end surface is inclined upwardly. In the drum type washing machine which inclines the rotating shaft and arrange | positions the said drum in an outer tank rotatably, and performs the centrifugal dehydration of the laundry accommodated in the said drum by rotating the said drum at high speed,

A balancer for adjusting the balance of the drum around the rotating shaft by moving or storing the fluid to balance the eccentric load caused by the ubiquitous load of the laundry is provided on the end face side located below the drum. have.

The "balancer" referred to in the fifth drum washing machine may be a balancer having a reservoir for storing water in the first to fourth drum type washing machines, and as described later, the fluid is sealed in the annular hollow body. It may be a fluid balancer. In a drum type washing machine in which one end surface of the drum is inclined upwardly, even if the user accommodates the laundry above the inclination in the drum, the laundry moves to the downward side by gravity due to the progress of washing or rinsing operation. It is biased in the vicinity of the end surface located in. On the other hand, according to the fifth drum type washing machine, since the balancer is installed on the lower end face of the drum, the position is close to the portion where the laundry is concentrated, that is, the position close to the portion where the eccentric load is generated when viewed in the direction of the rotational axis of the drum. In, it can be balanced around the axis of rotation. Therefore, the balance adjustment becomes easy and at the same time the load on the bearing can be reduced in the state where the balancer adjustment is achieved, so that the bearing wear can be reduced.

Furthermore, the sixth drum type washing machine according to the present invention, which has been made to solve the above problems, arranges a drum having a substantially cylindrical shape in the outer tub so as to be rotatable about a horizontal axis or an inclined axis, and rotates the drum at high speed. In a drum type washing machine for performing centrifugal dewatering of laundry contained in the drum,

a) a first balancer having a plurality of water storage chambers configured to be capable of storing water therein by a centrifugal force acting when the drum rotates, arranged in a circumferential direction around a rotation axis of the drum, and the first balancer A variable weight balance adjusting means including water pouring means for pouring water in each of the water storage chambers in a non-contact manner;

b) a second balancer having a substantially annular shape centered on the rotation axis of the drum and for suppressing vibration of the drum which is invariant in weight, wherein the first or second portion is provided at one end surface of the drum; The balancer of the other side is provided in one of the balancers and the other end surface of the said drum.

One form of the second balancer is a so-called fluid balancer which suppresses vibration of the drum by the movement of the fluid sealed inside the annular hollow body, which is the same as that provided around the upper edge of the laundry dehydration tank of the vortex washing machine. to be. That is, the fluid balancer adjusts the balance of the drum around the rotating shaft by moving the fluid inside the annular hollow body so as to balance the eccentric load due to the ubiquitous of the laundry. In addition, as another form, a ring-shaped heavy weight may be sufficient. In any case, the second balancer, unlike the first balancer, does not change weight as a whole, even if a local weight change (ie, movement) occurs inside the balancer.

Therefore, according to the sixth drum type washing machine, water is properly stored in the storage chamber of the first balancer in the balance adjusting means, thereby offsetting the eccentric load caused by the weight of the water and the ubiquity of the laundry, thereby reducing the eccentric load of the entire drum. Although it can be made small, even if the eccentric load is not sufficiently small, the vibration of the drum during centrifugal dehydration is suppressed by the second balancer, so that the outer shell or the outer box vibrates greatly, generates a loud noise, or supports the rotating shaft. It can prevent the load from being applied to the bearing.

Further, in the sixth drum type washing machine, at least one of the first and second balancers extends to the inner circumferential side of the flange portion protruding to the edge face side edge portion of the main body portion having a substantially cylindrical shape of the drum, and the stretching direction of the rotating shaft. It is preferable to set it as the structure which fixed so that at least one part may overlap with the said flange part. In the general configuration of this type of drum type washing machine, since the corner portion of the drum body portion is fixedly attached by bending and caulking, a flange portion extending in the stretching direction of the rotating shaft is formed. Therefore, according to the above preferred configuration, at least a part of the first or second balancer overlaps the main body of the drum in the extending direction of the rotary shaft, so even if the first and second balancers are installed, the size of the drum along the stretching direction of the rotary shaft is equal to that. Not as large as it is, there is an advantage that does not enlarge the outer box or reduce the laundry capacity.

Hereinafter, a drum type washing machine according to an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a side longitudinal sectional view showing the entire structure of the drum type washing machine in this embodiment, and Fig. 2 is a rear perspective view of the main part.

The outer box 1 forming the outline of the drum type washing machine has a front face portion 1a facing upwards inclined, and the front face portion 1a is formed with a substantially circular clothes inlet 1b, which can see through the inside. The lateral door 2 is provided. An upper portion of the front face portion 1a of the outer box 1 is connected to the upper face portion 1c while bending backward, and an operation panel not shown in the curved portion 1d, and a detergent container 12a that can be pulled forward. Is installed.

Inside the outer box 1, the outer tub 3 having a substantially cylindrical shape is held by the damper 4 for supporting the left and right sides, and the spring not shown to pull the upper part, so as to be properly rocked. It is. The front surface portion of the outer tub 3 is opened in a circular shape relative to the clothing inlet 1b of the outer box 1, and the opening 3a and the clothing inlet 1b are made of a sealing member made of an elastic body such as rubber ( Connected by 5).

In the outer tub 3, a drum 6 having a substantially cylindrical shape on the circumferential surface for accommodating laundry is journaled by the main shaft 7. In other words, the drum 6 includes a cylindrical body portion 6a having a plurality of water passage holes 6e, a front face plate 6b having a circular opening 6c for clothes input, and a rear face plate 6d. The main body 6a, the front face plate 6b, and the main body 6a and the back face plate 6d are joined by coking at the flange portion 6f which protrudes to the front edge portion and the rear edge portion, respectively. After it is screwed in. One end of the main shaft 7 is firmly fixed to the rear part of the rear face plate 6d of the drum 6 and is housed in a bearing case 8 attached to the rear face part of the outer tub 3. It is rotatably supported by.

The rotor 10b of the motor 10, which is an external rotor-type DC brushless motor, is attached to the end of the main shaft 7 protruding to the rear of the rear surface of the outer tub 3, while the bearing case 8 is attached to the motor. The stator 10a of 10 is fixed. That is, the bearing case 8 also serves as a motor stand for fixing the motor. The rotor 10b including the permanent magnet is arranged to surround the outer circumferential side of the stator 10a including the winding, whereby the motor 10 has a thin structure in the stretching direction of the main shaft 7. have. When a drive current is supplied to the stator 10a from a control circuit (not shown), the rotor 10b rotates so that the drum 6 is rotationally driven at the same rotational speed as the rotor 10b via the main shaft 7. .

The outer tub 3 incorporating the drum 6 is moved forward so that the center axis C of the drum 6 (coincides with the center axis of the main axis 7) is inclined by a predetermined angle θ with respect to the horizontal line H. It is arrange | positioned with a rising inclination. The inclination angle [theta] is set here, for example, about 5 to 30 degrees. The inclination of the front face portion 1a of the outer box 1 is formed in accordance with the inclination of the outer tub 3 and the drum 6, but it is not necessarily the same angle.

In the upper space in the outer box 1, a water supply part 11 including a water supply valve, a pump for bath water supply, and the like is disposed, and a water supply hose is connected to the water supply part 11 as an introduction port of water. The bath water hose water supply port 11 which connects the water supply port 11a and a bath water hose is provided. In front of the water supply unit 11 is provided with a detergent inlet 12 for retracting the detergent container 12a so that the water supplied from the water supply 11 to the detergent inlet 12 is a detergent inlet It is supplied in the outer tank 3 from the water sprinkler 14 provided in front of the outer tank 3 via the main water pipe 73 connected to the bottom part of (12).

Water is supplied in this way, and the water stored in the outer tub 3 flows into the drum 6 through the water passage hole 6e. In addition, the water discharged from the laundry in the drum 6 at the time of dehydration is scattered to the outer tank 3 side through the water passage hole 6e. A drain port 15 is provided behind the bottom of the outer tub 3, and the drain port 15 is connected to an inlet port of the drain valve 16, and when the drain valve 16 is opened, the drain port 16 is stored in the tub 3. Water is discharged out of the washing machine through the drain pipe 17.

This drum type washing machine is equipped with the characteristic balance adjustment apparatus in order to prevent the vibration of the drum 6 by the bias of laundry at the time of centrifugal dehydration. That is, the balance adjusting device includes a balancer 20 mounted on the rear side of the rear face plate 6d of the drum 6, and a nozzle 30 and water supply means, which are installed on the rear face portion 3c of the outer tub 3, and water supply means. It consists of a flow path 31.

The water supply part 11 includes the inlet port connected to the water supply port 11a, and the adjustment port 11c connected to the upper end part of the water supply flow path 31 by the outlet port. As shown in Fig. 2, the water supply flow passage 31 descends vertically from the water supply portion 11, and is sandwiched between the flange portion 8a of the bearing case 8 and the rear surface portion 3c of the outer tub 3. It is arranged in the state. Since the outer edge portion 8a 'of the flange portion 8a of the bearing case 8 extends outward more than the outer edge portion 10b' of the rotor 10b of the motor 10, the bearing case 8 Even if the flange part 8a protects the water supply flow path 31 and the outer box 1 and the outer tub 3 vibrate large, the rotor 10b of the motor 10 may contact the water supply flow path 31. none. Therefore, breakage or damage of the water supply flow path 31 can be prevented reliably.

3 is a plan view of the balancer 20, showing only one quarter in the circumferential direction. 4A, 4B, and 4C are cross sectional views taken along the line A-A ', B-B', and C-C 'in FIG. 5 is an enlarged view of the vicinity of an E portion in FIG. 1. 6 is an enlarged view around the portion F of FIG. 1.

The balancer 20 is a horizontal plane including the line D in Fig. 4A for the first member 20a and the second member 20b, which are integrally molded articles of synthetic resin, each formed in two states in the axial direction. In the case of joining by heat welding in one member.

The balancer 20 is surrounded by a main wall portion 21, an opposing wall portion 22 facing it, and an outer circumference wall portion 23 connecting the two wall portions 21 and 22 at the outer periphery at the outer circumferential side from near the radial center. A pocket-shaped and annular water reservoir having an open side is formed. The water storage tank is divided into a plurality (in this example, 16 in the circumferential direction) by a partition wall 24 radially provided between the main wall portion 21 and the opposing wall portion 22, each of which has a planar substantially fan-shaped shape. It is set as the reservoir 25. The opposing wall portion 22 has an inclined surface 22a on the inner circumferential side to make the water storage chamber 25 thin, whereby it has an advantage as described later.

Both the outer circumferential wall portion 23 and the partition wall 24 have a double wall structure having voids therebetween, whereby the wall surface is made thicker than other portions to increase the strength. The first wall portion 24a and the second wall portion 24b, which are double walls of the partition wall 24, join at the inner circumferential side end portion and bend again in a direction orthogonal to the radial direction to form a water inhibiting member 24c. In addition, the space | gap between the double walls of all the partition walls 24 and the space | gap between the double walls of the outer peripheral wall part 23 communicate with each other, and the balancer 20 whole forms the room 26. As shown in FIG. Only a very small hole 26 is open to the outside of this room 26. Of course, the wall surfaces of the outer circumferential wall portion 23 and the partition wall 24 may be thicker than other portions as long as the strength of the wall is increased. However, a double wall structure can further achieve the effects described below.

The tip end portion of the water blocking member 24c of one of the partition walls 24 is separated from the adjacent partition wall 24 by a predetermined distance, and the water passage opening 25a toward the inner circumferential side of the reservoir 25 is provided therebetween. have. In each reservoir 25, the water inhibiting member 24c is provided on the front side 12 in the direction in which the balancer 20 rotates at the time of centrifugal dewatering. For this reason, when the drum 6 rotates at a rotational speed at which the centrifugal force acting on the water in the state where water is stored in the reservoir 25 as described later will rotate against gravity, The water inhibiting member 24c acts to block water into the bank. In addition, the water inhibiting member 24c occupies approximately half of the area of the inner circumferential side opening between the adjacent partition walls 24. That is, the area of the water passage opening 25a and the area of the water blocking member 24c are approximately the same. As a result, the water stored in the water storage chamber 25 is prevented from being inadvertently drained, while being surely drained if necessary.

As shown in Fig. 4, the main wall portion 21 is located on the inner circumferential side of the water storage chamber 25 toward the center direction, so that the drip wall portion 21a is substantially horizontally flat, and an standing wall portion standing up obliquely to the inside ( 21b) On the inner circumferential side thereof, a horizontal member portion 21c is formed which is substantially parallel to the drip tray bottom portion 21a, and the inner circumferential side thereof has a circular opening 21d around the axis. The drip bottom part 21a, the standing wall part 21b, and the horizontal member part 21c have the following functions.

As shown in Fig. 5, the water ejected from the nozzle 30 tries to reach or splash at the same time as the water dripping portion 21a. Of course, since most of them diffuse downward by gravity, they flow into the reservoir 25 through the water passage opening 25a. Although some try to advance upward by the force of water, it is difficult to advance further along the standing wall part 21b, and it returns to a downward direction and flows into the water storage chamber 25 through the water passage opening 25a. Therefore, the water injected from the nozzle 30 flows into each storage chamber 25 efficiently, without discarding it.

On the other hand, when discharging the water stored in the water storage chamber 25, the centrifugal force acting on the water is made smaller than gravity, and the water flows out from the water passage opening 25a facing downward, but the water storage chamber on the opposite side where the dropped water is downward It is not desirable to enter (25). Since the horizontal member portion 21c prevents the water falling to the back surface (front side when viewed as the washing machine) of the balancer 20 from returning to the front surface, unwanted water inflow as described above can be prevented.

However, as described above, the balancer 20 is formed by thermally welding the first member 20a and the second member 20b. Thus, as shown in FIG. Burr 20c which solidifies with me cannot be avoided. In order to reduce the burr 20c and smooth the outer surface, polishing may be performed, but such a machining step causes an increase in cost. As shown in Fig. 6, the balancer 20 penetrates through the drum 6 main body portion 6a and the rear face plate 6d through a screwing hole 27 formed to protrude inwardly from the outer wall portion 23 thereof. Although one screw 28 is fixed by screwing in, in this attachment, the dimension and attachment position are considered so that the burr 20c may come out of the flange part 6f. Therefore, it is not necessary to shave off the burr 20c, and processing time can be shortened.

Further, as shown in Fig. 6, the outer shell 3 rear surface portion 3c and the bearing case 81 fixed thereto are concave forward from the inclined surface 22a of the opposing wall portion 22 on the inner circumferential side, and exactly the rear thereof. The stator 10a and the rotor 10b of the motor 10 are led to the front side than the rear end portion 3c of the outer tub 3 and the rear end face of the bearing case 8. That is, by providing the inclined surface 22a in the opposing wall part 22 of the balancer 20, the motor 10 can be moved and attached only to that much, and the amount of protrusion to the rear of the motor 10 becomes small. As a result, the depth dimension of the outer box 1 can be made small.

Moreover, when joining both members 20a and 20b by heat welding, even if the seam has a slight gap, it will cause leakage of the water storage chamber 25, and is a kind of defective product. Therefore, it is necessary to inspect whether or not there are no gaps in the joint at the forming stage of the part, but it is considered that this inspection can be performed very simply. That is, as described above, the balancer 20 has a room 26 surrounded by the partition 24 and the outer circumferential wall 23 having the holes 26a as the only entrances and exits. Since all the welding sites face this room 26, for example, if this room 26 is a closed space except the hole 26a, all welding sites should have no gaps. Then, air of predetermined pressure is injected from the hole 26a, and it is checked whether the pressure is maintained at the inlet of the hole 26. If there is no air leakage, the pressure is maintained, so the member can be judged to be good. On the contrary, if air pressure decreases, it can be considered that air leakage occurs in any one of the welding sites, and therefore, it can be judged as a defective product. In this way, the defect inspection of one member can be performed by one time of air injection and pressure measurement, and thus the inspection can be performed very easily and in a short time.

7 is an electric system configuration diagram of the main part of this drum type washing machine. The microcomputer 40 in charge of the overall control is configured to include a CPU, an A / D converter, a RAM, a ROM, and the like, and an operation program for each washing process is stored in the ROM in advance. The microcomputer 40 is connected with an operation unit 43, a display unit 44, a valve drive unit 47, an inverter control unit 45, a motor current detection unit 46, and the like. The operation unit 43 includes an operation panel provided on an upper portion of the front surface of the outer box 1 to provide the microcomputer 40 with an input signal according to an operation by a user. The display unit 44 includes a plurality of indicators provided in the operation panel to display information corresponding to the operation, information related to the driving situation, and the like.

The microcomputer 40 functionally includes a rotational speed control unit 41 and an eccentric load measuring unit 42. The rotational speed control unit 41 transmits the rotational speed indicating signal to the inverter control unit 45, and the inverter control unit 45 converts the indicating signal into a PWM signal and applies the driving voltage accordingly to the motor 10. As a result, the motor 10 rotates at a desired rotational speed, and the drum 6 rotates at the same rotational speed. The rotation sensor 48 generates a pulse signal according to the rotation of the motor 10 and transfers it to the microcomputer 40. In addition, the motor current detector 46 detects a torque current component among the drive currents supplied from the inverter controller 45 to the motor 10.

If the laundry is ubiquitous in the circumferential direction of the drum 6 inner surface, the load torque fluctuates during the rotation of the drum 6, so the torque current component fluctuates according to the eccentric load resulting from the ubiquity of the laundry. Thus, the eccentric load measuring unit 42 receives the fluctuation waveform of the torque current from the motor current detection unit 46, obtains the fluctuation amplitude during one rotation period of the drum 6, and compares the fluctuation amplitude with a predetermined determination criterion. By this, it is determined whether the amount of eccentricity is below the allowable value. Moreover, based on the rotation position obtained from the rotation sensor 48, the position of the eccentric load in a circumferential direction is discriminated.

Next, the operation of the dehydration operation performed after the washing operation or the rinsing operation in the drum type washing machine will be described with reference to FIGS. 8 and 9. Fig. 8 is a control flow chart during the dehydration stroke, and Fig. 9 is a schematic diagram showing the state of water inside the balancer during balance adjustment.

When the dehydration stroke is started, first, the rotational speed control unit 41 controls the motor 10 via the inverter control unit 45 to rotate the drum 6 at a rotational speed of about 40 rpm (step S1). At the start of the dehydration stroke, there is a possibility that the water supplied in the outer tub 3 remains in the reservoir 25 of the balancer 20 at the time of washing or rinsing immediately before that. The rotational speed is a rotational speed at which the centrifugal force acting on the water in the reservoir 25 becomes smaller than gravity. Therefore, when the reservoir 25 is in the upper direction of rotation, water flows out of the water passage opening 25a by gravity. Therefore, when the drum 6 is rotated at the rotational speed for a while, all the storage chambers 25 are almost empty. If water dropped from the reservoir passing through the drum 6 at the time of drainage enters the reservoir passing through the lower portion, the drainage is inefficient, but as described above, the horizontal member 21c is formed on the inner circumference of the balancer 20. By providing a, it is possible to suppress such unwanted water inflow.

Then, the rotational speed control part 41 controls the motor 10 via the inverter control part 45 in order to rotate the drum 6 at the rotational speed of about 300-400 rpm (step S2). This rotation speed allows vibration of the drum 6 or the outer tub 3 even if the water contained in the laundry in the drum 6 is properly scattered by the centrifugal force, and the eccentric load due to the uneven distribution of the laundry is large. It is a rotation speed that can be settled enough to dehydrate the laundry. By dehydration to some extent here, when carrying out high speed centrifugal dehydration later, the increase in eccentric load, position shift, etc. by the difference of dehydration rate can be reduced.

Next, the rotational speed control part 41 drops the rotational speed of the drum 6 to about 100 rpm, and maintains the rotational speed (step S3). At this rotational speed, the centrifugal force acting on the laundry is still larger than gravity, so the laundry adheres to the inner surface of the drum 6 main body 6a and rotates integrally with the drum 6. In this state, the eccentric load measuring unit 42, based on the torque current component detected by the motor current detecting unit 46 as described above, is the magnitude of the eccentric load generated at that time, that is, the eccentric amount and the drum 6 The position of the eccentric load in the circumferential direction is detected (step S4), and it is determined whether the detected eccentric amount is less than or equal to the allowable value (step S5). This allowable value is set in advance in accordance with the amount of vibration (amplitude) or the like that can be tolerated at the time of high-speed dewatering rotation described later.

When the amount of eccentricity is less than the allowable value in step S5, it is not necessary to perform balance adjustment, so the rotational speed control unit 41 raises the rotational speed of the drum 6 to about 720 rpm, and maintains the rotational speed to perform dehydration ( Step S12).

On the other hand, when the amount of eccentricity exceeds the allowable value in step S5, the following balance adjustment is executed. That is, first, the rotational speed of the drum 6 is raised to about 120 rpm (step S6), and then the valve 11c for adjustment is opened through the valve drive part 47 for a predetermined time (step S7). Then, the tap water supplied from the outside to the water supply port 11a is transferred to the nozzle 30 through the water supply flow path 31, and is injected toward the balancer 20 rotating from the nozzle 30. As shown in FIG. The injected water touches the water receiving part 21a of a certain balancer 20 while passing exactly the position facing the nozzle 30, or the water passage 25a of the lower reservoir 25 is efficiently as described above. Enters into the reservoir 25 through. Since the centrifugal force acting on the water inside the reservoir 25 is greater than gravity, it is biased toward the outer circumferential side and held in the reservoir 25 without overflowing from the water passage opening 25a.

If this condition continues for a predetermined time, as shown in Fig. 9A, all of the storage chambers 25 become substantially filled with water. Since the reservoir 25 is arranged radially with respect to the main shaft 7, there is almost no eccentric load generated by this water in the state where all the reservoirs 25 are almost full. On the other hand, since the laundry is pressed against the inner circumferential wall surface of the drum 6 main body 6a by centrifugal force, the state of the eccentric load W due to the uneven distribution of the laundry does not change. Therefore, the eccentric load of the drum 6 itself does not change before and after water is stored in the reservoir 25.

Subsequently, using the position of the eccentric load detected previously, rotation control of the drum 6 is performed so that water in the reservoir 25 at the same position in the radial direction or the position closest to the eccentric load can flow. . That is, if the centrifugal force acting on the water in the water storage chamber 25 rotates the drum 6 at the rotational speed which withstands gravity, if the temporal force falls to the rotational speed which becomes smaller than gravity temporarily, then the drum 6 The water flows out from the reservoir 25 located above the rotation of the bottom and decreases. Here, when the water discharged | emitted from the water storage chamber 25 located above rotation enters another water storage chamber 25, appropriate balance adjustment will become difficult.

As shown in Fig. 9 (a), since gravity is acting on the water in the reservoir 25 even when the drum 6 is rotating at 100 rpm, water flows from the reservoir while lifting upwards. On the other hand, the water inhibiting member 24c prevents the overflow of the water as a bank in the water storage chamber which passes through the upper direction of rotation and progresses below the rotation, so that the water is difficult to overflow. Therefore, if the rotational speed decreases temporarily as described above, as shown in Fig. 9B, water flows out from the storage chamber lifted upwardly and the storage chamber already located above, but rotates downwardly. The water in the reservoir, which is about to proceed, is retained without spilling.

When the rotational speed drops sharply, water also flows out from inside the storage chamber that is traveling upward, but inertial force acts on the water and is discharged to disperse forward. In other words, it is scattered and falls without much attention. Therefore, the probability that the dropped water enters into the storage chamber passing downward becomes small. Of course, due to the action of the horizontal member portion 21c as described above, since the falling water is less likely to enter the other reservoir, most of the water protruding from the reservoir is dropped into the outer tank 3 and is moved outward from the drain 15. Discharged.

In addition, in this balance adjustment, it is necessary to drop only the water in the water storage chamber 25 and to prevent the laundry in the drum 6 from moving in the drum 6. In the washing machine of the present embodiment, when the water storage chamber 25 is installed inside the inner circumferential wall surface of the drum 6, when the drum 6 is rotated at a certain rotational speed, the drum 6 is lower than the water in the water storage chamber 25. The greater centrifugal force acts on the laundry on the inner circumferential wall. In addition, in general, laundry containing water increases the adhesion to the inner circumferential wall surface of the drum 6 due to water, and therefore has a property that it is less likely to fall than the state assumed in the relationship between centrifugal force and gravity in calculation. From this point of view, by setting the rotational speed appropriately in the vicinity of the rotational speed such that the centrifugal force and gravity are balanced, it is possible to drop only the water without dropping the laundry.

Specifically, the rotational speed control section 41 rotates the drum 6 at a rotational speed at which the laundry is lightly pressed against the inner circumferential wall surface of the drum 6 by centrifugal force, and here, about 100 rpm. Then, the change in the torque current component of the motor 10 is monitored, the position of the eccentric load at the time of occurrence of the maximum peak is recognized, and the eccentric load passes through the lowest part of the drum 6 and is lifted upward. At an appropriate point in the way (for example, the range from 90 ° to the top of the top of the top), the rotational speed drops sharply to about 50 to 60 rpm, and immediately returns to the original rotational speed (step S8). As a result, as shown in Figs. 9B and 9C, the water in the water storage chamber 25 located at the same position as or near the eccentric load drops and the weight decreases. If the weight loss is a degree suitable for the eccentric load W due to the uneven distribution of the laundry, the eccentric load of the entire drum 6 becomes small.

After attempting the balance adjustment as described above, the eccentric load is detected again in the same manner as in the steps S4 and S5, and it is determined whether the eccentricity is less than or equal to the allowable value (steps S9 and S10). As a result of the balance adjustment, when the amount of eccentricity is settled below the allowable value, the rotational speed control unit 41 raises the rotational speed of the drum 6 to about 720 rpm, maintains the rotational speed, and performs dehydration (step). S12).

In the case where the eccentricity exceeds the allowable value in step S10, the eccentric load is not solved even by the balance adjustment, so that the rotation speed is such that the vibration does not become unusually large even if the eccentric load exists, in this case, the rotation of the drum 6 to about 500 rpm. The speed is increased to dehydrate. In any of steps S11 or S12, if the predetermined dehydration operation time has elapsed, the rotation of the drum 6 is stopped to end the dehydration operation.

As a matter of course, even when the rotational speed is lowered once, a sufficient amount of water cannot be discharged to offset the eccentric load W, so an appropriate change such as repeating the process of step S8 a plurality of times can be made. have.

In this way, in the drum type washing machine according to the present embodiment, the eccentric load due to the ubiquitous of the laundry is canceled by the balance of the weight of the water stored in each storage chamber of the balancer 20, and the amount of the eccentricity of the entire drum 6 is reduced. High speed centrifugal dehydration is performed. Therefore, even if laundry is ubiquitous, vibration of the drum 6, the outer tub 3, and the outer box 1 can be largely suppressed, and high dehydration performance is exhibited by increasing the rotational speed of the drum 6 at the time of centrifugal dehydration. You can.

FIG. 10 is a plan view showing another example of the balancer 20 in the drum type washing machine. In the configuration shown in Fig. 3, each reservoir 25 of the balancer 20 has a shape longer in the radial direction than the circumferential direction, and is advantageous for providing a plurality of reservoirs 25 in the circumferential direction. If a lot of water storage chambers 25 are provided, there exists an advantage that the balance adjustment can be performed minutely by that much. On the other hand, the area of the water passage opening becomes narrow, and the distance from the outermost periphery of the water in the reservoir 25 to the water passage opening 12 is long, so that water tends to be difficult to drain from the reservoir 25 as a whole. have. On the other hand, in the structure shown in FIG. 10, each water storage chamber 25 of the balancer 20 has a shape longer in the circumferential direction than the radial direction. Therefore, since the water passage opening 25a is large and the distance until the water in the outermost circumference of the water storage chamber 25 reaches the water passage opening 25a is short, the water is easily released from the water storage chamber 25 as a whole. Therefore, if it is substantially balance adjustment, the time required for it can be shortened.

11 is a side longitudinal sectional view showing the entire configuration of a drum type washing machine according to another embodiment of the present invention. In this drum type washing machine, it is conventionally used as a balance adjustment means of variable weight by the balancer (balancer 20) and water supply means (nozzle 30, water supply flow path 31, and adjustment valve 11c) mentioned above. The fluid balancer by fluid movement sealed inside the annular hollow body is used together. That is, the annular fluid balancer 50 is attached around the opening 6c of the front plate 6b of the drum 6. Since the fluid balancer 50 is attached to the inside of the drum 6 front flange portion, even if the fluid balancer 50 is attached, there is no protruding forward or small even if it is, thereby making the entire outer box 1 larger. You don't have to.

In this washing machine, the fluid sealed in the fluid balancer 50 at the time of centrifugal dehydration moves in the direction of suppressing the vibration of the drum 6, so that, for example, the eccentricity of the entire drum 6 is caused by the balancer 20 in the rear part. Even when the load is not completely eliminated, the fluid balancer 50 can suppress the vibration of the drum 6 caused by the remaining eccentric load. Therefore, the vibration of the drum 6, the outer tub 3, and the outer box 1 can be further suppressed, and a quietness can be attained. For example, when the control is performed in the order as shown in Fig. 8, the allowable value of the eccentric load in steps S5 and S10 can be increased, so that high dewatering performance can be achieved while suppressing vibration of the drum 6. It becomes possible to exert or shorten the time required for balance adjustment.

In addition, it is clear that the said embodiment is an example of this invention, and can be changed or corrected suitably in the range of the meaning of this invention.

The present invention provides a highly reliable drum type washing machine which effectively suppresses vibrations caused by the uneven distribution of laundry during centrifugal dehydration, suppresses the increase in cost, and reduces the occurrence of failure.

Claims (14)

In a drum type washing machine which arrange | positions a drum rotatably about a horizontal axis or an inclined axis in an outer tank, and performs centrifugal dewatering of the laundry accommodated in the said drum by rotating the said drum at high speed, In order to adjust the balance of the drum around the rotating shaft during centrifugal dehydration, a) a balancer having a plurality of reservoirs configured to be capable of storing water therein by centrifugal force acting when the drum rotates, in a state of circumferentially arranged around the axis of rotation of the drum; b) balance adjusting means including watering means for watering non-contact water in each of said reservoirs of said balancer, The balancer is formed by joining the contact portions of the first member and the second member, respectively, formed by dividing into two at least orthogonal or obliquely intersecting the rotational axis, and the joining portion is a double wall structure provided with a gap therebetween. A drum type washing machine characterized by the above-mentioned. The drum type washing machine according to claim 1, wherein the water storage chambers are respectively partitioned by radial partitions around the drum rotation axis. The drum type according to claim 1 or 2, wherein the balancer has a void space that is held by the wall portion of the double wall structure as one sealed space as a whole, and the sealed space is provided with a unique hole communicating with the outside. washer. According to claim 1, wherein the outer peripheral wall outer surface of the balancer is a cylindrical shape, the joint portion exposed to the outer peripheral wall outer surface of the balancer on the inner peripheral side of the flange portion protruding to the edge portion of any one end surface side of the drum A drum type washing machine, comprising: attaching the balancer to the drum such that the balancer is positioned outside the flange in the extending direction of the rotary shaft. In a drum type washing machine which arrange | positions a drum rotatably about a horizontal axis or an inclined axis in an outer tank, and performs centrifugal dewatering of the laundry accommodated in the said drum by rotating the said drum at high speed, In order to adjust the balance of the drum around the rotating shaft during centrifugal dehydration, a) a balancer disposed side by side in the circumferential direction around the axis of rotation of the drum, each having an opening on an inner circumferential side and having a plurality of reservoirs configured to be able to store water flowing in through the opening by centrifugal force; b) balance adjusting means comprising: a nozzle for injecting water against the balancer and water supply means for supplying water to the nozzle for non-contact watering in each of the reservoir chambers of the balancer; And The balancer has a flat surface that is substantially orthogonal to the rotational axis on the inner circumferential side of the water storage chamber, and has a standing portion standing up from the flat surface on the inner circumferential side, and the nozzle is directed toward the flat surface below the rotating shaft. The drum type washing machine is provided in the position which blows off, and the water which touched the said flat surface was made to flow along the said flat surface, and to let it flow into the lower reservoir. The drum type washing machine according to claim 5, wherein the balancer has an extension member extending inward from the standing portion. The water balancer according to claim 5 or 6, wherein in the balancer, water is prevented from flowing out to the inlet openings of the respective storage chambers in a direction substantially perpendicular to the radial direction and on the front side in the direction in which the drum rotates when centrifugal dehydration. A drum type washing machine characterized by providing an interference member. The drum type washing machine according to claim 5, wherein each of the water storage chambers in the balancer has a concave shape so as to be thick in the stretching direction of the rotating shaft on the outer circumferential side and thin on the inner circumferential side. In a drum type washing machine which arrange | positions a drum rotatably about a horizontal axis or an inclined axis in an outer tank, and performs centrifugal dewatering of the laundry accommodated in the said drum by rotating the said drum at high speed, In order to adjust the balance of the drum around the rotating shaft at the time of centrifugal dehydration, the drums are arranged side by side in the circumferential direction around the rotating shaft of the drum, each having an opening on the inner circumferential side, and the water flowing through the opening is moved inside by the centrifugal force. It is provided with the balancer which has a some storage chamber comprised so that storage is possible, The balancer is a drum type washing machine, wherein each of the water storage chambers has a size larger in the radial direction than the circumferential direction. In a drum type washing machine which arrange | positions a drum rotatably about a horizontal axis or an inclined axis in an outer tank, and performs centrifugal dewatering of the laundry accommodated in the said drum by rotating the said drum at high speed, In order to adjust the balance of the drum around the rotating shaft during centrifugal dehydration, a) a balancer disposed side by side in the circumferential direction around the drum rotation axis, each having an opening on an inner circumferential side, and having a plurality of reservoirs configured to be able to store water flowing therein through the centrifugal force; b) balance adjusting means comprising: a nozzle for injecting water against the balancer and water supply means for supplying water to the nozzle for non-contact watering in each of the reservoir chambers of the balancer; And In the drum, the balancer is disposed on the end face side of the side to which the rotary shaft is fixedly attached, and the nozzle is provided on the end face side of the outer tub facing the drum end face, and the outer tub end surface and the outer tub are provided. A drum type washing machine, wherein the water supply flow path is disposed between a flange portion of a bearing case fixedly attached to an end surface. The drum type washing machine according to claim 10, wherein the drum type washing machine rotates and drives the drum by a motor directly connected to the rotating shaft, wherein the bearing case also serves as a motor for fixing the stator of the motor. . A rotation shaft is fixedly attached to one end surface of the drum having a circumferential surface having a substantially cylindrical shape, and the drum is rotatably disposed in the outer tub by tilting the rotation shaft so that the end surface opposite to the end surface is inclined upward. A drum type washing machine which performs centrifugal dewatering of laundry contained in the drum by rotating the drum at a high speed. A balancer for adjusting the balance of the drum around the rotating shaft by moving or storing the fluid to balance the eccentric load caused by the ubiquitous load of the laundry is provided on the end face side positioned below the drum. Drum Washing Machine. A drum type washing machine for arranging a drum having a substantially cylindrical shape in a outer tub so as to be rotatable about a horizontal axis or an inclined axis, and rotating the drum at a high speed to perform centrifugal dewatering of laundry contained in the drum. a) the first balancer and the first balancer having a plurality of storage chambers configured to be capable of storing water therein by a centrifugal force acting when the drum rotates, in a state in a circumferential direction around a rotation axis of the drum; A variable weight balance adjusting means including water-pouring means for watering non-contact water in each storage chamber; b) a second balancer having a substantially annular shape centered on the rotation axis of the drum and for suppressing vibration of the drum which is invariant in weight, wherein the first or second portion is provided at one end surface of the drum; A drum type washing machine, wherein any one of the balancers is provided, and the other balancer is installed on the other end surface of the drum. The flange part inner peripheral side which protrudes at least one of the said 1st or 2nd balancer in the edge part side edge part of the substantially cylindrical shape of the said drum, and is extended in the extending direction of the said rotating shaft. Drum type washing machine, characterized in that fixed to overlap the flange portion at least.