KR20050109397A - Drum back of drum type washing machine - Google Patents

Abstract

The drum bag of the drum washing machine according to the present invention has a first forming portion in which a portion facing the spider is convex forward, and a second forming portion in which the first forming portion is convex backward is formed, so that the strength is improved and friction with the cloth is improved. There is an advantage that can be increased to improve the washing performance.

Description

Drum back of drum type washing machine

The present invention relates to a drum bag of a drum washing machine, and more particularly, to a drum bag of a drum washing machine in which the drum bag is formed in multiple stages.

In general, a washing machine is a device for cleaning cloths by washing, rinsing, dehydrating, etc. to remove dirts on clothes, bedding, etc. (hereinafter, called pores) using water and detergent.

The washing machine is largely classified into an agitator type, a pulsator type and a drum type washing machine.

The stirring type washing by rotating the laundry rod towered in the center of the washing tank to the left and right, t the vortex type is rotated by rotating the disk-shaped rotary blade formed on the lower side of the washing tank to wash by using the friction between the water flow and the cloth, the drum type The drum is rotatably arranged inside the tub, and water and detergent and cloth are put into the drum to wash the drum by rotating the drum.

The drum washing machine is mounted so that the tub and the drum are laid on its side, and a gun entry hole is formed at each front thereof.

The drum may be made of a single plastic injection molding, but the drum center, a drum front coupled to the front end of the drum center and formed with a pore-out hole in consideration of vibrations or collision with a tub generated during rotation of the drum, and the drum The trend consists of a drum bag that blocks the back of the center.

On the other hand, the drum bag is made of a disc shape to block the back of the drum center, the rear is mounted with a spider for transmitting the rotation of the drive means such as a motor to the drum.

However, the drum bag of the washing machine according to the prior art has a problem in that it is simply made of a disc shape and has a low strength and a small friction with the cloth, thereby limiting washing performance.

The present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide a drum bag of a drum washing machine that can improve the washing performance by increasing the strength and friction with cloth.

The drum bag of the drum washing machine according to the present invention for solving the above problems comprises a rear portion of the drum in which the cloth is accommodated, and in the drum bag of the washing machine in which the spider is mounted, the drum bag has a portion opposite to the spider facing forward. A convex first forming portion is formed, and the first forming portion is characterized in that the second convex forming the rear convex.

The spider may include a shaft connecting portion to which a shaft of the motor is connected, and a plurality of leg portions protruding radially from the shaft connecting portion, and the first forming portion is formed to be formed so that the shaft connecting portion and the plurality of leg portions are inserted. The two forming parts are each formed in a portion facing the plurality of legs.

In addition, the second forming portion is characterized in that it is formed to be inclined forwardly inclined toward the rear toward the radially outer side.

In addition, the drum bag is characterized in that the circumferential portion is bent forward and then bent backwards.

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

1 is a cross-sectional view showing the inside of a drum washing machine equipped with a drum bag according to the present invention.

In the drum washing machine of the present invention, as shown in FIG. 1, the cabinet 4 is disposed above the base 2, and the top cover 6 is disposed on the upper surface of the cabinet 4. The cabinet cover 8 is disposed in front of the.

The cabinet cover 8 has a fabric access hole 9 formed therein to allow the fabric m to enter and exit, and a door 10 for opening and closing the fabric access hole 9 is rotatably connected.

In addition, a control panel 12 for operating the washing machine is disposed on the upper side of the cabinet cover 8 or the upper cover 6.

On the other hand, in the space formed by the base 2, the cabinet 4, the top cover 6 and the cabinet cover 8, a tub 14 for containing water mixed with detergent or clean water (hereinafter referred to as washing water). ) Is located.

The tub 14 is mounted on the damper 3 connected to the base 2 and connected to the spring 5 connected to both sides of the cabinet 4 so as to be suspended from the damper 3 and the spring 5. Is bufferably supported.

The tub 14 is a circular cylinder lying on its side, and an opening hole 16 is formed at the rear of the gun entrance hole 9, and a water supply port 18 for supplying the washing water w on one upper side thereof. Is formed, the lower side is formed with a drain 20 for draining the wash water (w).

In addition, the tub 14 is equipped with a gasket 22 which comes into close contact with the rear surface of the door 10 when the door 10 is closed, and prevents leakage of washing water w and separation of the fabric m.

One end of the gasket 22 is connected to the tub 14 so that the gasket 22 is positioned around the front of the opening hole 16 of the tub 14.

In addition, the back of the tub 14 is equipped with a motor 24 that is a driving means for rotating the drum 30 to be described later.

The motor 24 is composed of a stator 26 fixed to the back of the tub 14 and a rotor 28 surrounding the circumference and the back of the stator.

On the other hand, the drum 30 is a cylinder lying sideways, such as the tub 14 so that the lower portion is immersed in the wash water (w) in the tub 14, rotatably positioned inside the tub 14 do.

Figure 2 is an exploded perspective view of the drum and spider shown in Figure 1, Figure 3 is a front view of the drum bag according to the present invention.

1 and 2, a spider 32 is fixed to the rear surface of the drum 30, and a shaft 33 for connecting to the rotor 28 is rearwardly connected to the spider 32. It is fixed to protrude.

The spider 32 is composed of a shaft connecting portion 34 to which the shaft 33 is fixed, and a plurality of legs 35, 36, 37 protruding radially from the shaft connecting portion 34. Each of the legs 35, 36, 37 is fixed to the rear side of the drum 30 by fastening means such as a bolt.

The shaft 33 has a front end fixed to the shaft connecting portion 34 and passes through an opening formed in the rear surface of the tub 14 and is supported by a bearing installed in the opening hole, and a rear end thereof is supported by the motor 24. ) Is fixed to the rotor 28.

Meanwhile, as illustrated in FIGS. 1 and 2, the drum 30 has a lifter 40 mounted on the inner circumferential surface of the circumference to lift and drop the cloth m, and the door 30 of the cabinet cover 8 is mounted therein. A pore access hole 43 is formed at the rear of the hole 9 to allow the cloth m to enter and exit, and a plurality of through-holes 41 and 45 are formed at the periphery or the back to allow the washing water or air to flow in and out. .

In addition, the drum 30 forms a circumference of the drum 30 and the drum center 42 in which the through hole 41 is formed, and the front and rear portions of the drum 30 are formed in the center. The drum front 44 is formed, and a drum bag 46 forming the rear portion of the drum 30 and the through hole 45 is formed.

As shown in FIGS. 1 to 3, the drum bag 46 is provided with a first forming part 50 in which a portion facing the spider 32 is convex forward, and the first forming part 50. The second convex forming parts 52, 53, and 54 which are convex rearwardly are formed.

The first forming part 50 is formed in the same shape as the spider 32 so that the shaft connection part 34 and the plurality of leg parts 35, 36, and 37 are inserted.

The second forming parts 52, 53, and 54 are formed at portions facing the plurality of legs 35, 36, and 37, respectively.

The second forming portions 52, 53, and 54 are inclined backward toward the outer side in the radial direction, and are inclined forward again, thereby improving not only the strength in the circumferential direction but also the strength in the radial direction.

The drum bag 46 is also bent backwards after the circumference 56 is bent forward, thereby improving not only the circumferential strength but also the radial strength.

On the other hand, the drum bag 46 is formed with the through hole 45 in addition to the first forming unit 50.

Reference numeral A is a drum expansion space formed by the second forming parts 52, 53, 54.

Reference numeral 60 is a water supply valve connected to the external hose 58 to regulate the water supplied through the external hose 58, reference numeral 62 is a water supply hose for guiding water passing through the water supply valve 60, Reference numeral 64 is a detergent container installed so that detergent can be mixed with the water guided by the water supply hose 62, and reference numeral 66 denotes a water supply port 18 of the tub 14 for washing water passing through the detergent container 64. Water supply bellows pipe leading to).

In addition, reference numeral 70 is a drainage bellows pipe connected to the drain port 20 of the tub 14 so that the washing water w in the tub 14 is drained, and reference numeral 72 is the drainage bellows pipe 70. A pump for pumping the wash water guided to the reference numeral 74 is a drain hose connected to the pump for draining the wash water pumped from the pump to the outside of the washing machine.

Looking at the operation of the present invention configured as described above are as follows.

First, when the door 10 is opened and the cloth m is introduced into the drum 30, the cloth m is stacked in the internal space of the drum 30, and a part of the second foaming part is formed. 52, 53, 54 are filled in the washing machine is able to insert more foam (m) as the second forming unit (52, 53, 54).

When all the fabric m desired for washing is put into the drum 30, the door 10 is closed and a command such as washing / rinsing / dehydration is input through the control panel 12. The washing machine is operated according to the input command.

When the washing machine is input the washing stroke, the water supply valve 60 is turned on to supply water, and the supplied water is mixed with the detergent while passing through the detergent container 64 and then contained in the inner lower portion of the tub 14. Through the through holes 41 and 45 of the drum 30, the drum 30 is introduced into the drum 30 and wetted in the cloth m.

The washing machine turns off the water supply valve 60 and turns on the motor 24 when the water of a predetermined level is supplied inside the tub 14 to rotate the spider 32.

When the spider 32 is rotated, the drum 30 is rotated to raise and drop the fabric m upwards, and the dropped fabric m is polluted by the action of water and detergent.

On the other hand, some of the foam (m) is increased friction with the side portions of the second forming portion (52, 53, 54), so that the contamination is better off.

When the washing is performed for a predetermined time, the washing machine turns off the motor 24 and turns on the drain pump 72 to drain the contaminated washing water to the outside. 72) is off.

When the rinsing stroke is input, the washing machine turns on / off the water supply valve, the motor, and the drain valve in the same manner as the washing stroke to rinse the remaining water on the fabric.

When the dehydration stroke is input, the washing machine drives the motor 24 at high speed.

The spider 32 and the drum 30 are rotated at high speed during the high speed driving of the motor 24, and the water m is attached to the inner surface of the drum 30 so that water is centrifugally dehydrated.

Then, the washing machine turns on the drain pump 72 with the high speed driving of the motor to drain the contaminated wash water to the outside, and turns off the drain pump 72 when all the contaminated wash water is drained.

The drum bag of the drum washing machine according to the present invention configured as described above has a first forming portion in which a portion facing the spider is convex forward, and a second forming portion in which the first forming portion is convex backward is formed, thereby improving strength. And the friction with the fabric is increased there is an advantage that can improve the washing performance.

In addition, the second forming portion is inclined to the rear toward the outside in the radial direction, is formed to be inclined forward, there is an advantage to improve the strength in the radial direction as well as the strength in the circumferential direction.

In addition, since the second forming portion is formed to be convex rearward, and can accommodate a larger amount of foam as the inner space of the second forming portion, there is an advantage that the washing capacity is increased.

In addition, the drum bag is bent backward after the circumference is bent forward, there is an advantage of improving the strength in the radial direction as well as the strength in the circumferential direction.

1 is a cross-sectional view showing the inside of a drum washing machine equipped with a drum bag according to the present invention;

2 is an exploded perspective view of the drum and spider shown in FIG.

3 is a front view of a drum bag according to the present invention.

<Explanation of symbols on main parts of the drawings>

14: Tub 30: Drum

32: spider 34: shaft connection

35,36,37: leg 40: lifter

41: through hole 42: drum center

43: four entrance hall 44: drum front

45: through 46: drum back

50: first forming part 52, 53, 54: second forming part

56: circumference A: drum expansion space

Claims (4)

In the drum bag of the washing machine which is configured with the back portion of the drum in which the cloth is accommodated and the spider is mounted, The drum back is provided with a first forming portion in which a portion facing the spider is convex forward. Drum back of the drum washing machine, characterized in that the first forming portion is formed with a second convex rearward. The method according to claim 1 or 2, The spider is composed of a shaft connection to which the shaft of the motor is connected, and a plurality of legs protruding radially from the shaft connection, The first forming portion is formed to be formed so that the shaft connecting portion and the plurality of leg portion is inserted, The second forming unit is a drum bag of the drum washing machine, characterized in that formed on the portion facing the plurality of legs, respectively. The method according to claim 1 or 2, The second forming unit is a drum back of the drum washing machine, characterized in that formed inclined forwardly inclined to the rear toward the outside in the radial direction. The method according to claim 1 or 2, The drum bag is a drum bag of the drum washing machine, characterized in that the circumferential portion is bent backwards.