KR20150077264A - Washing Machine - Google Patents

Abstract

The present invention relates to a washing machine including a connection shaft detachably combined with a rotatory tank. The washing machine comprises a cabinet; a tub formed inside the cabinet, and having washing water stored; a rotatory tank installed inside the tub to be rotated; an auxiliary washing tank located inside the rotatory tank, and formed to store laundry in addition to the rotatory tank; and a connection shaft connection the auxiliary washing tank and the rotatory tank so that the auxiliary washing tank is rotated when the rotatory tank is rotated, wherein the connection shaft is detachably combined with the rotatory tank. A user can selectively attach and detach the connection shaft from the rotatory tank.

Description

Washing Machine {Washing Machine}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine, and more particularly, to a washing machine including a coupling shaft detachably coupled to a rotary drum.

BACKGROUND ART A washing machine is a machine for washing clothing using electric power. Generally, a washing machine includes a fully automatic washer which stirs laundry and washing water by rotating pulsator and generates washing water to wash the laundry, And a drum type washing machine for washing clothes by dropping the laundry.

The automatic washing machine includes a tub for storing wash water, a rotating tub rotatably installed in the tub, a pulsator rotatably installed on the bottom of the tub, and a driving device for rotationally driving the tub and pulsator do. When the rotary tub and the pulsator rotate while the laundry and the washing water are supplied into the rotary tub, the pear shaker stirs the laundry introduced into the rotary tub together with the washing water to remove the impurities.

In recent years, an auxiliary washing tub is provided in the inside of the rotary tub to separate the laundry and wash it separately. This is advantageous in that the washing machine can be used separately depending on the type of the laundry, so that it is efficient in terms of time and economy in using the washing machine by the consumer.

The auxiliary washing tub and the rotating tub are connected to each other by a connecting shaft and can rotate together. At this time, even when the auxiliary washing tub is not used, the connecting shaft is coupled to the rotating tub, which may cause inconvenience to the user. For example, there is a problem that the space for washing is reduced as much as the space occupied by the connection shaft, and the laundry is inconvenient to enter and leave.

According to an aspect of the present invention, there is provided a washing machine in which a connecting shaft connecting an auxiliary washing tub and a rotating tub is removably installed in a rotating tub.

Further, there is provided a washing machine in which a rotating shaft and a connecting shaft are coupled through a lower surface of a connecting shaft provided in the same shape as a bottom surface of the rotating shaft without a separate connecting member.

A washing machine according to an embodiment of the present invention includes a cabinet, a tub provided inside the cabinet for storing wash water, a rotating tub rotatably installed in the tub, a washing tub located inside the tub, And a connecting shaft for interlocking the auxiliary washing tub and the rotating tub so that the auxiliary washing tub can rotate together when the rotating tub is rotated. The connecting shaft is detachably coupled to the rotating tub.

The connection shaft may extend from the lower portion of the rotary tub and may be in contact with the auxiliary washing tub so as to connect the rotary tub and the auxiliary tub.

The rotary tub includes a first pulsator for generating a flow of water inside the rotary tub and flowing the laundry, and the connection shaft can be seated in the center of the first pulsator.

Wherein the auxiliary drum is provided with a second pulsator for generating a flow of water inside the auxiliary drum and for flowing the laundry, and the first pulsator and the second pulsator are interlocked to rotate, And may extend from a central portion of the first pulsator to a lower portion of the second pulsator.

The connecting shaft may include a base portion coupled to the first pulsator, a neck portion extending from the base portion, and a head portion extending from the neck portion and coupled to the second pulsator.

The first pearl setter may include an engaging protrusion protruding upward from a central portion of the first pear setter, and the base portion may include a coupling recess to be detachably engaged with the engaging projection.

The base portion may be provided corresponding to an upper shape of the first pulsator so that the connection shaft can be seated on the first pulsator.

The head portion is detachably coupled to the second pulsator through a coupling hole formed in a lower surface of the auxiliary washing tub, and the auxiliary washing tub is fitted to the head portion and is detachably coupled to the inside of the rotating tub.

The upper surface of the first pulsator may be provided with a concave-convex structure for flowing laundry, and a lower portion of the connection shaft may be formed in a shape corresponding to the concavo-convex structure formed on the upper surface of the first pulsator.

The concavoconvex structure may include at least one floor projecting upwardly, and the lower portion of the connection shaft may include at least one corrugation corresponding to the shape of the at least one floor.

The rotating vessel may include a first pulsator, and the connecting shaft may be detachably coupled to the first pulsator.

The first pearl setter may include a coupling protrusion protruded to one side, and the coupling shaft may include a coupling groove detachably fitted to the coupling protrusion.

The coupling groove may include at least one coupling hook detachably coupled to the coupling projection.

The connection shaft may include a base portion connected to the rotary tub, and a head portion connected to the auxiliary washing tub.

The head portion may include a coupling button movably provided, and the base portion may include a coupling hook operatively coupled to the coupling button and detachably coupled to the first pulsator.

Depending on whether the auxiliary washing tub is used or not, the user can selectively remove the connecting shaft from the rotary tub.

In addition, a connecting shaft that is seated in the rotary tub can be easily attached and detached by a user without a separate connecting member.

1 is a cross-sectional view of a washing machine according to an embodiment of the present invention.
FIG. 2 is a view showing a combined state of an auxiliary washing tub and a rotary tub of a washing machine according to an embodiment of the present invention.
3 is an exploded view of a washing machine according to an embodiment of the present invention.
FIG. 4 is a perspective view illustrating a coupling between a rotary shaft and a coupling shaft of a washing machine according to an embodiment of the present invention.
FIG. 5 is a perspective view illustrating a coupling between a rotary shaft and a coupling shaft of a washing machine according to another embodiment of the present invention.
6 is a cross-sectional view of a washing machine according to another embodiment of the present invention.
7 is a perspective view illustrating a connection between a rotary shaft and a connection shaft of a washing machine according to another embodiment of the present invention.
8 and 9 are enlarged views of the portion 'A' in FIG.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a sectional view of a washing machine 1 according to an embodiment of the present invention.

1, the washing machine 1 includes a cabinet 10, a tub 20 located inside the cabinet 10 and storing wash water, a rotary tub 20 rotatably disposed inside the tub 20, (30), and a driving device (40) for driving the rotating tub (30).

An upper cover 15 having a laundry inlet 14 is provided at an upper portion of the cabinet 10 to allow laundry to be introduced into the rotary tub 30 and a laundry inlet 14 is opened and closed at the upper cover 15, A door 16 is provided.

A lower cover 18 is provided at the lower portion of the cabinet 10 and has a seating portion 19 coupled to the bottom of the cabinet. A suspension member (not shown) for suspending the rotary tub 30 in the cabinet 10 is connected to the upper portion of the cabinet 10. [

The rotary tub 30 is rotatably disposed inside the cabinet 10 and has a plurality of through holes (not shown) formed along the circumference of the rotary tub 30. A balancer 90 for canceling the unbalanced load due to the rotation of the rotary tub 30 may be provided on the rotary tub 30.

The auxiliary washing tub 80 may be detachably coupled to the balancer 90. The auxiliary washing tub (80) is coupled to the balancer (90) and positioned inside the rotary tub (30). Accordingly, it is possible to wash the laundry of different kinds in the rotary tub 30 and the auxiliary washing tub 80, respectively. In addition, when the amount of laundry is small, washing can be performed only in the auxiliary washing tub 80, thereby saving extra washing water. The auxiliary washing tub 80 can be used as a laundry storage box for separating laundry from the balancer 90 and accommodating the laundry after washing.

A connecting shaft 70 for coupling the rotating tub 30 and the auxiliary washing tub 80 to rotate the auxiliary tub 80 together with the rotating tub 30 and the auxiliary washing tub 80, 80, respectively. A first pulsator 71 is rotatably installed on the bottom of the rotary tub 30. The first pulsator 71 serves to stir the laundry introduced into the rotary tub 30 together with washing water do. This will be described later.

A water supply device 50 for supplying washing water to the interior of the rotary tub 30 and a detergent supply device 60 for receiving the detergent are provided on the rotary tub 30. The water supply device 50 includes a water supply valve 53 for controlling water supply and a water supply pipe 51 for connecting the water supply valve 53 and the detergent supply device 60.

One side of the water supply pipe 51 is connected to an external water supply source (not shown), and the other side of the water supply pipe 51 is connected to the detergent supply device 60. The detergent supply device 60 includes a case 63 provided inside the upper cover 15 and a detergent container 61 detachably mounted in the case 63 and containing the detergent. A discharge port 65 for discharging washing water in which the detergent is dissolved is formed on the bottom surface of the case 63. The water supplied through the water supply pipe (51) is supplied to the inside of the rotary tub (30) together with the detergent via the detergent supply device (60).

A first drain hose 45 and a second drain hose 46 for guiding the wash water to the outside of the cabinet 10 are provided at the lower portion of the rotary tub 30 after the washing or dehydrating process is completed.

The drive device 40 includes a clutch 25 for selectively rotating the rotary tub 30 and the first pulsator 71, a drive motor 50 for driving the clutch 25, A flange member 42 for connecting the bottom of the rotary tub 30 to the rotary tub 30 so that the rotational force of the driving shaft 24 can be transmitted to the rotary tub 30, And a base plate 43 for fixing. And also includes a pulley 35 for fixing the clutch 25 and the drive motor 50 to each other.

FIG. 2 is a view showing a state where the auxiliary washing tub 80 of the washing machine 1 is coupled with the rotary tub 30 according to the embodiment of the present invention. FIG. 3 is a perspective view of the washing machine 1 according to the embodiment of the present invention. FIG.

A first pulsator (71) is coupled to the lower surface of the rotary tub (30). Further, a balancer 90 may be coupled to the upper surface of the rotary tub 30. The auxiliary washing tub 80 is coupled to the balancer 90 so that the auxiliary washing tub 80 is located inside the tub 30.

The balancer 90 may be formed by combining the body portion 93a and the cover portion 93b. The receiving projections 82 of the auxiliary washing tub 80 are fitted into the receiving grooves 91 of the balancer 90 along the guide portion 81 of the auxiliary washing tub 80 and the balancer 90 and the auxiliary washing tub 80 And can be detachably coupled.

A rim 88 may be provided on the upper surface of the auxiliary washing tub 80. The rim 88 may be provided to protrude from the surface of the auxiliary washing tub 80. The rim 88 may bend downward to form a receiving protrusion 82 coupled to the balancer 90.

The auxiliary washing tub 80 may be provided with a plurality of through holes 80a. The washing water is supplied to the rotating tub 30 through the through hole 80a of the auxiliary washing tub 80 when the washing water is supplied to the auxiliary washing tub 80 and the washing water of the auxiliary washing tub 80 reaches a certain level. Further, when the auxiliary washing tub 80 rotates in the dehydrating process, the washing water in the auxiliary washing tub 80 can be drained through the through hole 80a by the centrifugal force.

The first pulsator (71) of the rotary tub (30) may be provided in a disc shape to constitute the lower surface of the rotary tub (30). A plurality of through holes 71a may be positioned in the first part of the first pulsator 71 so that the washing water flows through the first pulsator 71 vertically. The first pulsator 71 may include at least one first floor 73 protruding upward to flow laundry. As shown in FIG. 2, six first floors 73 can be provided.

A connecting shaft 70 extending from the center of the first pulsator 71 may be provided. The drive shaft 24 may be coupled to the center of the first pulsator 71 and the drive shaft 24 may be coupled to a lower portion of the connection shaft 70. The power of the driving motor 50 is transmitted to the auxiliary washing tub 80 through the connecting shaft 70 so that the auxiliary washing tub 80 can rotate together with the rotating tub 30 when the rotating tub 30 rotates.

The connecting shaft 70 includes a base portion 74 coupled to the first pulsator 71, a neck portion 72 extending from the base portion 74, and a neck portion 72 extending from the neck portion 72, And may include a head portion 75 coupled thereto. The head portion 75 may be provided such that the width of the head portion 75 becomes narrower toward the distal end of the head portion 75 in order to guide the coupling with the auxiliary washing tub 30. [ That is, the head portion 75 may be provided in the form of a wedge in the direction of the auxiliary washing tub 30. A plurality of grooves 75a may be provided at the distal end of the head portion 75 to improve the coupling strength with the auxiliary washing tub 80. [

A coupling hole (not shown) for coupling the head part 75 may be formed on the lower surface of the auxiliary washing tub 80. The head portion 75 is fitted into a coupling hole (not shown), and at least a part of the head portion 75 can be inserted into the auxiliary washing tub 80 through a coupling hole (not shown).

A second pulsator (81) may be rotatably installed in the auxiliary washing tub (80). The second pulsator 81 generates a flow of water inside the auxiliary washing tub 80 and allows the laundry to flow. The second pulsator 81 may include at least one second floor 83 protruding upward to flow laundry in a disc shape similar to the first pulsator 71.

A coupling shaft 70 passing through a coupling hole (not shown) can be coupled to the central portion 84 of the second pulsator 81. The connection shaft 70 may extend from the lower portion of the rotary tub 30 to be in contact with the auxiliary washing tub 80. That is, the connecting shaft 70 may extend from the first pulsator 71 to the central portion 84 of the second pulsator 81. The base portion 74 of the connection shaft 70 may be coupled to the first pulsator 71 and the head portion 75 may be coupled to the second pulsator 81. [

Since the auxiliary washing tub 80 is provided separately from the rotary tub 30, the normal laundry and the soft laundry can be separated and washed. Thus, since the laundry of the other kind can be washed by one washing cycle, efficient washing can be performed.

In addition, the auxiliary washing tub 80, which is provided in a smaller capacity than the rotary tub 30, can be used to wash the laundry to save washing water. When the auxiliary washing tub 80 is not used, it can be separated and used as a laundry storage box. Therefore, the auxiliary washing tub 80 can be detachably attached to the balancer 90 depending on whether the user uses the auxiliary washing tub 80 or not.

When the separate washing is not required, the auxiliary washing tub 80 may be separated from the rotary tub 30 and the connecting shaft 70 may be separated from the rotary tub 30. Therefore, the connecting shaft 70 can be seated so as to be detachable to the first pulsator 71 of the rotary tub 30. [

FIG. 4 is a perspective view illustrating the coupling between the first pulsator 71 and the connecting shaft 70 of the washing machine 1 according to an embodiment of the present invention.

The base portion 74 may be provided corresponding to the upper shape of the first pulsator 71 so that the connecting shaft 70 can be seated on the first pulsator 71. [ For example, as shown in FIG. 4, the first pulsator 71 may include a coupling protrusion 76 protruding upward at the central portion thereof. The base portion 74 of the connecting shaft 70 may include an engaging groove 36 that is detachably fitted to and engages with the engaging projection 76. The engaging protrusion 76 is fitted into the engaging groove 36 and the connecting shaft 70 can be seated on the first pulsator 71.

1, the base portion 74 may be provided with a structure of an engaging groove 36 corresponding to the shape of the engaging projection 76. As shown in FIG. In the case of separate washing, the connecting shaft 70 is placed on the first pulsator 71, and the auxiliary washing tub 80 is coupled to the connecting shaft 70 so that the connecting shaft 70 is separated from the first pulsator 71 .

5 is a perspective view illustrating a coupling between a first pulsator 71 and a connection shaft 70a of the washing machine 1 according to another embodiment of the present invention.

As described above, the upper surface of the first pulsator 71 may be provided with a concave-convex structure including at least one floor 73 to flow the laundry. At this time, the floor 73 refers to the first floor 73, and the floor 73 is the first floor 73.

The lower portion of the connecting shaft 70 may be provided in a shape corresponding to the concavo-convex structure formed on the upper surface of the first pulsator 71. That is, the lower portion of the connecting shaft 70 may include at least one trough 79 corresponding to the shape of the at least one floor 73. The respective floors 73 and the valleys 79 are engaged with each other so that the connecting shaft 70 is seated on the first pulsator 71 and can be stably engaged.

FIG. 6 is a cross-sectional view of a washing machine according to another embodiment of the present invention, and FIG. 7 is a perspective view illustrating a connection between a rotating shaft and a connecting shaft of a washing machine according to another embodiment of the present invention. Hereinafter, the description of the washing machine with reference to Figs. 1 to 4 is cited within a range that does not conflict.

As described above, the connection shaft 70b can be detachably installed in the rotary tub 30. [ At this time, the connection shaft 70b can be detachably coupled to the rotary tub 30 so as to be stably mounted on the rotary tub 30. That is, the connection shaft 70b can be detachably coupled to the first pulsator 71. [

The connection shaft 70b includes a base portion 74b connected to the rotary tub 30 and a head portion 75b connected to the auxiliary washing tub 80. The base portion 74b and the head portion 75b (Not shown). The first pulsator 71 may include a coupling protrusion 76a protruding to one side and the coupling shaft 70b may include a coupling groove 36a that is detachably fitted to the coupling protrusion 76a .

At this time, the engaging groove 36a is provided inside the base portion 74b, and the engaging groove 36a may be provided in a shape corresponding to the engaging projection 76a. The engaging groove 36a may include at least one engaging hook 130 detachably coupled to the engaging projection 76a.

The engaging projection 76a may include a hook groove 77 into which the engaging hook 130 is inserted and a fixing protrusion 78 provided to engage with the engaging hook 130. [ The fixing protrusion 78 may be positioned at the upper end of the hook groove 77 to fix the engaging hook 130 inserted in the hook groove 77. [ 6 and 7, a plurality of hook grooves 77 and fixing projections 78 may be provided on the engaging projections 76a. Further, the coupling hook 130 may be provided in a corresponding number.

The head portion 75b may include a coupling button 100 movably provided. The coupling hook 130 operates in conjunction with the coupling button 100 and is detachably coupled to the first pulsator 71. That is, when an external force is not applied to the joining button 100, the connecting shaft 70b can be fixed to the rotary tub 30. Further, when an external force is applied to the joining button 100, the connecting shaft 70b can be separated from the rotary tub 30.

8 and 9 are enlarged views of the portion 'A' in FIG. The interlocking process of the coupling button 100 and the coupling hook 130 will be described in detail with reference to FIGS. Fig. 8 shows a state in which no external force is applied to the engagement button 100, and Fig. 9 shows a state in which an external force is applied to the engagement button 100. Fig.

The connecting shaft 70b may include a moving part 110 located inside the connecting shaft 70b. The moving part 110 may be integrally formed with the joining button 100 and may move together with the joining button 100. The moving part 110 may extend from the joining button 100 provided at the upper end of the head part 75b to the neck part 72b and the base part 74b.

The coupling hook 130 may be formed integrally with the inside of the base portion 74b. That is, the coupling hook 130 may be formed in the coupling groove 36a. A transfer protrusion 120 may be provided on the inner side of the base portion 74b. The transfer protrusion 120 may be connected to the coupling hook 130 on the inner surface of the base portion 74b and protrude toward the inner center. As shown in Fig. 8, the transfer protrusion 120 is disposed adjacent to the moving part 110. As shown in Fig. The transfer protrusion 120 and the coupling hook 130 may be made of a material having elasticity.

The moving part 110 may be provided with a return spring 112. Accordingly, the moving part 110 can be returned to its original position by the elastic force of the return spring 112 when the external force is removed.

The moving part 110 is disposed adjacent to the transmitting projection 120 and the return spring 112 is not compressed as shown in FIG. The engaging hook 130 is inserted into the hook groove 77 and is fixed by the fixing protrusion 78. Accordingly, the connecting shaft 70b can be fixed to the rotary tub 30. [

In the case of FIG. 9 in which an external force is applied to the joining button 100, the joining button 100 and the moving unit 110 can be lowered. The return spring 112 is compressed according to the descending moving part 110, and the transfer protrusion 120 receives the pressure. One end of the transfer protrusion 120 can be lowered and deformed by the pressure. Accordingly, the engaging hook 130 moves toward the inner side of the base portion 74b and can be separated from the engaging groove 36a. Accordingly, the user can separate the connecting shaft 70b from the rotary tub 30. [

When the external force is removed, the moving part 130 moves upward due to the elastic force of the return spring 112, so that the transmitting projection 120 and the coupling hook 130 can return to their original positions. The structure in which the coupling button 100 and the coupling hook 130 are interlocked as described above is merely one embodiment and is not limited thereto.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the technical idea of the present invention described in the following claims .

1: Washing machine 10: Cabinet
20: a tub 30:
40: drive device 70: connection shaft
71: First Pulsator 72: Neck
73: floor 74: base portion
75: head part 76: engaging projection
80: auxiliary washing tub 81: second pulsator
90: balancer 100: engagement button
110: pressing member 120: connecting member
130: coupling hook

Claims (15)

cabinet;
A tub provided inside the cabinet and storing wash water;
A rotary tub rotatably installed in the tub;
An auxiliary washing tub located on the inside of the rotating tub to be able to receive laundry separately from the tub;
And a connecting shaft for interlocking the auxiliary washing tub and the rotating tub so that the auxiliary washing tub can rotate together when the rotating tub is rotated,
And the connection shaft is detachably coupled to the rotary tub. The method according to claim 1,
And an auxiliary washing tub,
Wherein the connection shaft extends from a lower portion of the rotary tub and contacts the auxiliary washing tub. The method according to claim 1,
Wherein the rotary tub includes a first pulsator for generating a flow of water inside the rotary tub and for flowing the laundry,
And the connection shaft is seated in the center of the first pulsator.
The method of claim 3,
Wherein the auxiliary washing tub includes a second pulsator for generating a flow of water inside the auxiliary washing tub and for flowing the laundry,
Wherein the connection shaft extends from a central portion of the first pulsator to a lower portion of the second pulsator so that the first pulsator and the second pulsator can rotate together. 5. The method of claim 4,
Wherein the connecting shaft includes a base portion coupled to the first pulsator, a neck portion extending from the base portion, and a head portion extending from the neck portion and coupled to the second pulsator. 6. The method of claim 5,
Wherein the first pearl cleater includes a coupling protrusion protruding upward at a central portion thereof,
And the base portion includes an engaging groove that is fitted and detachably coupled to the engaging projection. 6. The method of claim 5,
A second pulsator that is connected to the first pulsator,
Wherein the base portion is provided corresponding to an upper shape of the first pulsator. 6. The method of claim 5,
Wherein the head portion is detachably coupled to the second pulsator through a coupling hole formed in a lower surface of the auxiliary washing tub,
Wherein the auxiliary washing tub is fitted to the head portion and is detachably coupled to the inside of the rotating tub. The method of claim 3,
The upper surface of the first pulsator is provided with a concave-convex structure for flowing laundry,
Wherein a lower portion of the connection shaft is formed in a shape corresponding to a concavo-convex structure formed on an upper surface of the first pulsator. 10. The method of claim 9,
Said concavoconvex structure comprising at least one floor projecting upwardly,
And the lower portion of the connection shaft includes at least one crest corresponding to the shape of the at least one floor. The method according to claim 1,
Wherein the rotating vessel includes a first pulsator,
And the connection shaft is detachably coupled to the first pulsator. 12. The method of claim 11,
Wherein the first pearl sheathe includes an engaging projection projecting to one side,
Wherein the connection shaft includes a coupling groove that is detachably fitted to the coupling projection. 13. The method of claim 12,
And the coupling groove includes at least one coupling hook detachably coupled to the coupling projection. 12. The method of claim 11,
Wherein the connection shaft includes a base portion connected to the rotating tub, and a head portion connected to the auxiliary washing tub. 15. The method of claim 14,
Wherein the head portion includes a coupling button movably provided,
Wherein the base portion includes a coupling hook operatively associated with the coupling button and detachably coupled to the first pulsator.

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