KR101087092B1 - drum type washing machine - Google Patents

Abstract

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine that can easily replace the washing ball in the drum, reducing the repair cost and repair time.

To this end, the present invention is a drum (6) rotatably installed in the tub; In addition, at least one lift 100 protruding inward to the inner surface of the drum and detachably installed to replace the washing ball 103 in the drum provides a drum washing machine including the drum. .

Drum washing machine, lift

Description

Drum washing machine

1 is a schematic view showing a conventional drum washing machine.

Figure 2 is a perspective view showing the internal structure of the drum of Figure 1;

Figure 3 is a perspective view showing the structure of the lift installed on the inner surface of the drum of Figure 2;

Figure 4 is a perspective view showing the structure of the lift according to the present invention.

5 is an exploded perspective view showing in detail the structure of the lift of FIG.

6 is a front view showing the rear of the fixing member constituting the lift of FIG.

7 is a perspective view showing the structure of the laundry ball holder of FIG.

8 is an installation diagram showing the installation process of the lift.

Explanation of symbols on the main parts of the drawings

6: drum 100: lift

101: fixing member 102: washing ball holder

111: fixing bolt 112: fixing hole

113: nut 114: mounting hook

115: insertion hole 116: guide hole

117: Boss 120: Cover

121: departure prevention hole 122: first guide                 

122a, 123a: Hook hole 123: Second guide

124: fastening protrusion 125: fastening hole

126: fastening bolt 127: guide projection

128: boss 130: supporter

131: support groove 132: first hook

133: second hook

The present invention relates to a drum washing machine, and more particularly, to a lift of a drum washing machine that can easily replace the laundry ball in the drum.

In general, the drum washing machine is a device for washing laundry by rotating the drum by the driving force of the motor in a state in which detergent, washing water and laundry are put in the drum. Such a drum washing machine has the advantage that the damage of the laundry is less and the laundry is not tangled well, knocking and rubbing the laundry effect.

Hereinafter, the drum washing machine according to the related art will be described in detail with reference to FIGS. 1 to 3.

1 is a schematic view illustrating a conventional drum washing machine, FIG. 2 is a perspective view illustrating an internal structure of the drum of FIG. 1, and FIG. 3 is a perspective view illustrating a structure of a lift installed on an inner surface of the drum of FIG. 2.                         

Referring to FIG. 1, the drum washing machine includes a main body 1 having a laundry inlet formed on a front surface thereof, a door 2 installed to be opened and closed at a laundry inlet of the main body, and storing laundry water inside the main body. By the tub 3, the motor device 4 installed on the tub to generate a driving force, the washing shaft 5 connected to the motor device, and the driving force connected to the washing shaft and transmitted from the motor device. And a drum 6 for washing laundry.

The tub 3 is supported by a damper (not shown) and a spring (not shown), and the damper and the spring function to cushion the vibration generated when the motor device 4 and the drum 6 rotate.

The motor device may be applied to an indirect driving method for rotating the drum by transmitting the driving force generated from the motor to the washing shaft by a belt, or a direct driving method for rotating the drum by directly transmitting the driving force generated from the motor to the washing shaft. You can also apply.

In addition, the drum (6) is made of stainless material, a spider (8) is installed on the closed rear surface of the drum to reinforce the rear side strength of the drum, and the washing shaft (5) at the center of rotation of the spider Is condensed. These spiders are made of castings to prevent the drum from tearing or deforming when the laundry shaft is rotated. At this time, in order to further reinforce the strength of the drum, the rear side surface of the drum is formed to protrude inward the portion on which the spider 8 is to be installed.

2, at least one lift 7 is installed on an inner surface of the drum 6 so as to be substantially parallel to the washing shaft 5. At this time, the lift is built so that a portion of the washing ball 7a is exposed to the drum 6 so as to rotate as it comes into contact with the laundry. At this time, the washing ball (7a) is made of a ceramic material to facilitate the rotation in the lift (7).

The lower surface portion of this lift 7 is fixed by a fastening member 7b inserted in the outer surface of the drum as shown in FIGS. 1 and 2. Further, the rear end of the lift is fixed to the portion where the spider is installed in the rear side of the drum.

The drum washing machine configured as described above performs the washing operation as the washing stroke, the rinsing stroke, and the dehydration stroke are continuously performed. In addition, the washing stroke, the rinsing stroke or the dehydration stroke may be selectively performed according to the user's selection. In addition, it is understood that the laundry can be washed by various washing methods according to the type of laundry.

When the drum washing machine performs the washing operation, the drum 6 is rotated at a low speed about the washing shaft 5 by the driving force transmitted from the motor device.

At this time, the laundry is lifted while the lift 7 reaches a predetermined height from the lower part, and when the lift 7 is over the predetermined height, the laundry falls again. As such, the lift 7 repeats a series of processes for raising the laundry to the top and then dropping the laundry when the drum 6 rotates for a predetermined time. The laundry is washed by this series of processes.

In addition, when the drum washing machine performs a dehydration stroke, the drum 6 is rotated at a high speed about the washing shaft (5). At this time, the laundry contained in the drum is dewatered by centrifugal force.

However, the conventional drum washing machine has the following problems.                         

That is, the lift is fixed by inserting the fastening member in the outer surface of the drum as shown in Figure 1, if the ceramic washing ball is broken, the drum, the tub and the motor device to remove the washing ball after replacing There is a problem.

Therefore, since the washing ball must be replaced after the drum washing machine is brought into a factory or a service center, a transportation cost, a repair cost, and a repair time for repairing the washing machine are increased.

As such, even a slight component failure can lower the reliability of the consumer's product.

In order to solve the above problems, an object of the present invention is to provide a drum washing machine that can easily replace the washing ball in the drum, thereby reducing the repair cost and repair time of the washing machine.

In order to achieve the above object, the present invention is a drum rotatably installed in the tub; And, it provides a drum washing machine comprising at least one lift: protruding inward to the inner surface of the drum, detachably installed to replace the laundry ball in the drum.

The lift, the fixing member is fixed to the inner surface of the drum; The laundry ball holder is detachably attached to the fixing member and installed to expose the laundry ball partially inside the drum.                     

The laundry ball holder may be detachably installed on the fixing member, and a cover having a separation preventing hole formed to partially expose the laundry ball; The supporter is installed between the fixing member and the cover, and a support groove is formed to support the lower portion of the washing ball.

At this time, the supporter is fastened to the lower surface of the cover.

In addition, the lower end and the rear end of the fixing member are fastened by fixing bolts.

Hereinafter, an embodiment of a drum washing machine according to the present invention will be described with reference to FIGS. 4 to 8.

Figure 4 is a perspective view showing the structure of the lift according to the invention, Figure 5 is an exploded perspective view showing in detail the structure of the lift of Figure 4, Figure 6 is a front view showing the rear of the fixing member constituting the lift of Figure 4, 7 is a perspective view showing the structure of the laundry ball holder of Figure 5, Figure 8 is an installation diagram showing the installation process of the lift.

4, the drum washing machine includes a drum 6 (see FIG. 2) and a lift 100.

The drum is rotatably installed in the tub, and the lift 100 is detachably installed to replace the washing ball 103 in the drum. At least one such lift 100 is installed.

The lift 100 is largely composed of a fixing member 101 and the laundry ball holder 102.

The fixing member 101 is fixed to the inner surface of the drum long in the direction of the rotation axis of the drum. In addition, the laundry ball holder 102 is detachably attached to the fixing member 101 and the laundry ball 103 is installed to partially expose the inside of the drum. At this time, the laundry ball 103 is installed to be rotatable in the laundry ball holder 102 when the friction with the laundry. These wash balls are made of ceramic.

The fixing member 101 may be fixed by the fixing bolt 111 outside the drum or may be fixed by the fixing bolt inside the drum.

For example, the lower end and the rear end of the fixing member 101 are fastened by the fixing bolt 111.

A fixing hole 112 is formed at the rear end of the fixing member 101 so as to be fastened to the rear side of the drum by the fixing bolt 111 as shown in FIGS. 5 and 6. At this time, the rear end of the fixing member 101 is fixed to a portion in which the spider 8 (see FIGS. 1 and 2) is installed in the rear side of the drum.

In addition, it is preferable that a fixing boss (not shown) is formed on the lower surface of the fixing member 101 to fasten the fixing bolt 111.

When the fixing member 101 is fixed by the fixing bolt 111 outside the drum, the nut 113 is fixed to the fixing boss and the fixing hole 112 as shown in FIG. This fixing structure has the advantage that can facilitate the installation of the fixing member 101 in the production line.

Alternatively, when the fixing member 101 is fixed by a fixing bolt inside the drum, a nut is fixed to an outer surface of the drum corresponding to the fixing boss and the fixing hole 112. Accordingly, when the fixing member 101 is damaged inside the drum, there is an advantage that the fixing member can be easily replaced at home without disassembling the drum and the tub.

Here, the position of the fixing boss and the fixing hole may be variously changed in view of the length and height and the structure of the lift.

It is preferable that a mounting hook 114 is formed on the lower surface of the fixing member to guide the mounting position of the fixing member. Accordingly, the fixing member 101 may be fastened after the fixing member 101 is positioned at a predetermined position.

At this time, it is preferable that the reinforcing ribs 112a are formed on the outer surfaces of the fixing boss and the fixing hole 112 as shown in FIG. 6. This is to prevent damage to the fixing boss and the fixing hole even if concentrated stress is generated in the fixing boss and the fixing hole 112 in structure.

The fixing member 101 has a space formed therein so that the laundry ball holder 102 can be installed therein and the top surface of the fixing member 101 is opened.

It is also understood that the fixing member 101 can be fixed in various structures on the inner surface of the drum.

On the other hand, the laundry ball holder 102 is composed of a cover 120 and the supporter 130.

The cover 120 is detachable to the fixing member 101 and the separation prevention hole 121 is formed to partially expose the washing ball 103. The cover 120 is preferably installed to cover the open upper surface of the fixing member 101.

The supporter 130 is installed between the fixing member 101 and the cover 120. The supporter 130 has a support groove 131 is formed to support the lower portion of the laundry ball 103. The support groove 131 is formed in a hemispherical shape having a diameter substantially the same as the laundry ball 103. Of course, the shape of the support groove 131 may be changed into various shapes according to the shape of the washing ball 103.

The supporter 130 is preferably fastened to the lower surface of the cover 120. This is to allow the washing ball 103 to be separated together with the cover 120 when the cover 120 is disassembled from the fixing member 101.

In addition, it is understood that the supporter 130 may be fastened to the inside of the fixing member 101. In this structure, as the cover 120 is removed, the washing ball 103 may be pulled out from the supporter 130.

In such a lift 100, the cover 120 is formed with a guide portion, the supporter 130 is formed with a hook portion to be inserted into the guide portion of the cover 120.

For example, the guide portion is formed at both ends of the cover 120, the hook portion is formed at both ends of the supporter 130.

In this case, the guide part may include a first guide 122 protruding from the front end of the cover 120 to support the front surface of the supporter 130, and a supporter 130 at the rear end of the cover 120. The second guide 123 protrudes to support both rear edges of the rear surface.

Hook holes 122a are formed at the front side of the first guide 122, and hook holes 123a are formed at the left and right sides of the cover 120 at the second guide 123. . Of course, the position of the hook hole may be variously changed.

In addition, the hook portion is formed on one end of the front side of the supporter 130, and is formed on both sides of the first hook 132 and the rear surface of the supporter 130, which are inserted into the first guide 122. The second hook 133 is inserted into the second guide 123.

The first hook 132 protrudes toward the front side, and the second hook 133 protrudes to the left and right sides. The second hook 133 is preferably formed to be detached from the hook hole (123a) by applying an external force from the left and right sides of the cover 120.

The guide portion and the hook portion may be formed in various shapes.

By the structure such as the guide portion and the hook portion, it is possible to fasten the supporter 130 to the cover 120 without fastening a separate bolt. In this structure, since the lower surface of the supporter is supported by the fixing member, even if a large external force is applied to the washing ball, the supporter does not fall out.

Of course, it is understood that the bolt 120 may be more stably fastened by fastening the bolt to the center of the supporter 130.

Referring to the structure for fastening the laundry ball holder 102 to the fixing member 101 as follows.

The cover is installed to be removable while sliding to the fixing member.

In this case, an insertion hole 115 is formed at one end of the front side of the fixing member 101, and an insertion hole 115 is formed at the front end of the cover 120 to be inserted into the insertion hole 115 of the fixing member 101. The protrusion 124 is formed.

In addition, a fastening hole 125 is formed at one end of the rear side of the cover 120 to be fixed to the fixing member 101 by a fastening bolt 126.

The fastening hole 125 of the cover is preferably formed to a depth that the head portion of the fastening bolt 126 does not protrude to the outside. This is to prevent the laundry from being damaged such as lint generated in the laundry by the fastening bolt 126.

At least one guide hole 116 is formed at both sides of the fixing member 101 along a length direction, and guides are inserted into the guide holes 116 of the fixing member 101 at both sides of the cover 120. More preferably, the projection 127 is formed.

In this case, the guide protrusion 127 of the cover 120 is fitted to the rear edge of the guide hole 116 of the fixing member 101 when sliding the cover 120 to the rear side as shown in FIG. It is bent to the rear side of the cover 120. The guide protrusion 127 prevents the thin and long formed cover 120 from being bent or deformed upward and guides the installation position of the cover 120.

On the other hand, when the cover 120 is applied to the sliding structure fixed to the front side, the guide protrusion 127 will be bent to the front side of the cover 120.

The guide protrusion 127 may be formed in an appropriate number in consideration of the length, width, and thickness of the cover 120.

The boss 128 is formed in the fastening hole 125 of the cover 120 as illustrated in FIG. 7, and the boss 128 of the cover 120 is formed at one end of the rear side of the fixing member 101 as illustrated in FIG. 5. The boss 117 is formed to correspond to.

The operation of the drum washing machine configured as described above will be described.

When the laundry ball 103 of the lift 100 is broken or damaged, a hand is inserted into the drum to release and release the fastening bolt 126 of the cover 120. Subsequently, the cover 120 is slid to the front side of the drum and then the cover 120 is lifted upward.

At this time, as the guide protrusion 127 is removed from the guide hole 116, the washing ball holder 102 is separated from the fixing member 101.

The bolt is released from the laundry ball holder 102 separated as described above, and the second hook 133 formed at one end of the rear side of the supporter 130 is pressed on both sides.

In this case, the second hook 133 is removed from the hook hole 123a to separate the supporter 130 from the cover 120, and replace the laundry ball 103 at the supporter 130.

After replacing the washing ball 103, the washing ball holder 102 and the fixing member 101 are assembled in the reverse order. Accordingly, the laundry ball and the like can be replaced without releasing the drum, the tub, and the motor device.

As described above, the drum washing machine according to the present invention has the following effects.

Since the lift is detachably installed in the drum, it is possible to replace the laundry ball of the lift without disassembling the drum, the tub and the motor device.                     

In addition, by easily replacing the washing ball, there is an effect that can significantly reduce the repair time and repair cost of the washing machine.

Claims (10)

A drum (6) rotatably installed in the tub (3); And, And at least one lift 100 protruding inwardly on the inner surface of the drum 6 and detachably installed to replace the washing ball 103 in the drum, The lift 100 is: A fixing member 101 fixed to an inner surface of the drum 6; And, And a washing ball holder 102 which is detachably attached to the fixing member in a state where the fixing member 101 is fixed to the inner surface of the drum, and the washing ball 103 is installed to partially expose the inside of the drum. The laundry ball holder 102 is: A cover 120 detachably installed at the fixing member 101 and configured to partially expose the washing ball 103; And, And a supporter (130) installed between the fixing member (101) and the cover (120) and having a support groove (131) formed to support a lower portion of the washing ball (103). The method of claim 1, The cover 120 is a drum washing machine, characterized in that it comprises a separation prevention hole 121 formed so that the washing ball is partially exposed. delete 3. The method of claim 2, The supporter 130 is a drum washing machine, characterized in that fastened to the bottom of the cover (120). 5. The method of claim 4, The cover 120 is a drum washing machine, characterized in that installed to cover the upper surface of the fixing member (101). The method according to any one of claims 1, 2 and 4, The fixing member 101 is a drum washing machine, characterized in that fastened by the fixing bolt (111) inside or outside the drum (6). The method of claim 6, The lower side and the rear end of the fixing member 101 is fastened by a fixing bolt (111). The method of claim 7, wherein The rear end of the fixing member 101 has a fixing hole 112 is formed, the fixing hole is a drum washing machine, characterized in that the nut 113 is fixed. The method of claim 7, wherein Drum washing machine, characterized in that the seating hook 114 is protruded formed on the lower portion of the fixing member (101). The method of claim 8, Drum washing machine, characterized in that the outer surface of the fixing hole 112 is formed rib for strength reinforcement (112a).

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