KR20060136165A - Drum-type washing machine having an auxiliary lifter - Google Patents

Abstract

Disclosed is a drum washing machine provided with an auxiliary lifter. A plurality of main lifters are installed in the longitudinal direction on the inner wall of the drum. An auxiliary lifter is installed at the drum inlet side between the main lifter and the main lifter. The auxiliary lifter is formed such that the height projecting from the inner wall of the drum is gradually lowered toward the inner side at the drum inlet. By such a configuration, it is possible to prevent the laundry from flowing between the door and the gasket during the washing and rinsing stroke, and to prevent the laundry from being damaged and the wear of the gasket, and to further improve the washing ability.

Drum Washing Machine, Main Lifter, Auxiliary Lifter, Drum

Description

Drum washing machine with auxiliary lifter {DRUM-TYPE WASHING MACHINE HAVING AN AUXILIARY LIFTER}

1 is a cross-sectional view showing the interior of a drum washing machine having an auxiliary lifter according to a preferred embodiment of the present invention;

2 is an exploded perspective view of a state before the auxiliary lift is mounted on the inner wall of the drum according to a preferred embodiment of the present invention;

3 is a perspective view after the auxiliary lift is mounted on the inner wall of the drum according to a preferred embodiment of the present invention;

4 is an enlarged cross-sectional view taken along line A-A of FIG. 3;

5 is a perspective view showing an example of a drum washing machine having a conventional structure; And

6 is a schematic cross-sectional view of a conventional drum washing machine.

<Description of the code | symbol about the principal part of drawing>

30: drum 70: main lifter

80: auxiliary lifter A: drum washing machine

The present invention relates to a drum washing machine having an auxiliary lifter, and more particularly, by installing an auxiliary lifter on the inner wall of the inlet side of the drum to move the laundry inside the drum during washing and rinsing strokes, thereby preventing damage to the laundry and Disclosed is a drum washing machine having an auxiliary lifter which prevents abrasion and can improve washing performance.

In general, a drum washing machine which rotates a cylindrical drum from the horizontal space from the inner space of the tub in which the washing water is stored, while washing the laundry by impact energy by dropping the laundry from the upper part of the drum to the lower part in the process, Damage is relatively less than that of a pulsator type washing machine or an edge data type washing machine, and at the same time, the amount of washing water is relatively less than that of a pulsator type washing machine or an edge data type washing machine.

The conventional drum washing machine 200, as shown in Figure 5 to 6, the tub 116 is installed horizontally from the top of the base 110 in the interior of the cabinet 100 shown in a virtual line In the tub 116, a drum 120 providing a laundry space is rotatably installed, and a driving motor 126 for rotating the drum 120 is installed at the rear of the tub 116.

In addition, the tub 116 is provided with a detergent container 136 for supplying a laundry detergent and the like, including a water supply valve 130 for controlling the wash water supplied from the outside and a laundry aid such as a fabric softener, and a drum ( The front of the 120, the door 140 is installed to open and close, and the gasket 146 is installed between the door 140 and the inlet of the tub 116 to prevent leakage of the wash water.

In addition, the lower end of the tub 116 is connected to the filter 150, the drain pump 153 and the drain hose 156 to discharge the wash water.

Drum washing machine 200 having a structure as described above is typically provided with a drying function to allow the laundry to proceed after the end of the washing and dehydration stroke, accordingly between the upper and rear of the drum washing machine 200 therein As the chamber 170 having the heat transfer heater and the drying device including the blower fan 175 and the condensation duct 180 are combined, the air inside the drum 120 is repeatedly circulated, while the drum 120 is in this process. At the same time to spray the hot air to condense the moisture contained in the air to allow the laundry to dry.

Meanwhile, as shown in FIG. 6, a plurality of lifters 160 are installed on the inner wall of the drum 120 of the drum washing machine 200 so as to smoothly drop the laundry upward. Lifting 160 lifts the laundry upwards while rotating, so that the laundry drops more downwardly from the drum 120, so that washing is more desired. The lifter 160 has a trapezoidal cross-sectional shape, and a through hole 162 is formed on the upper surface thereof so that washing water can be introduced into / outflowed from the inside thereof.

However, such a lifter 160 is formed in a constant shape and size so that when the laundry rises upward during the washing or rinsing stroke, some of the laundry moves to the front of the drum washing machine 200 while the door 140 and the gasket ( 146) flowing between the laundry and the gasket 146 is in contact with each other when the dehydration stroke is performed in this state, there is a problem that the laundry is damaged, the wear of the gasket 146 and abnormal noise is caused by this.

The present invention has been made to solve the problems of the prior art as described above, the technical problem of the present invention is to install the auxiliary lifter on the inner wall of the drum to move the laundry inside the drum during the washing and rinsing stroke to wash the laundry It is an object of the present invention to provide a drum washing machine having an auxiliary lifter which can prevent damage, prevent wear of the gasket, and improve washing performance.

In order to achieve the above object, the present invention,

In a drum washing machine in which a plurality of main lifters are installed in a longitudinal direction on an inner wall of a drum,

A drum washing machine having an auxiliary lifter is provided between the main lifter and the main lifter.

Preferably, the auxiliary lifter is installed at the drum inlet side.

Preferably, the auxiliary lifter is formed such that the height protruding from the inner wall of the drum is gradually lowered toward the inward direction at the drum inlet.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention having the above characteristics as follows.

1 is a cross-sectional view showing the inside of a drum washing machine having an auxiliary lifter according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view of a state before the auxiliary lift is mounted on the inner wall of the drum according to a preferred embodiment of the present invention 3 is a perspective view after the auxiliary lift is mounted on the inner wall of the drum according to a preferred embodiment of the present invention, Figure 4 is an enlarged cross-sectional view taken along the line AA of FIG.

As shown in FIG. 1, a drum washing machine (A) according to the present invention has a tub 20 in which washing water is accommodated in the cabinet 10, and a drum for providing a washing space in the tub 20. 30 is rotatably installed, and a drive motor 40 for rotating the drum 30 is installed at the rear of the tub 20.

Along with this, the tub 20 is provided with a detergent container (not shown) for supplying a laundry detergent or the like, including a water supply valve (not shown) for controlling the wash water supplied from the outside and a laundry aid such as a fabric softener. The front of the drum 30 is installed to open and close the door 50, a gasket 60 is installed between the door 50 and the entrance of the tub 20 to prevent leakage of the wash water.

In addition, the tension coil spring is coupled between the upper cabinet and the tub 20 in order to absorb the vibration and shock caused by the rotation and stop of the drum 30 in the washing and dehydration process or the fall of the laundry, the cabinet 10 By connecting an oil damper between the lower portion and the lower portion of the tub 20, vibration or shock is reduced by elasticity of the tension coil spring and damping action of the oil damper.

On the other hand, a plurality of main lifters 70 are installed on the inner wall of the drum 30 of the drum washing machine A to lift the laundry upward, as shown in FIGS. As described above, the action of raising the laundry upward and the friction action of the laundry is also performed. This, the main lifter 70 has a trapezoidal cross-sectional shape, the through hole 72 is formed on the upper surface so that the wash water can be introduced / discharged to the inside.

An auxiliary lifter 80 is installed between the main lifter 70 and the main lifter 70 in front, that is, at the drum inlet side.

As shown in FIGS. 1 to 4, the auxiliary lifter 80 is formed such that the height protruding from the inner wall of the drum 30 is gradually lowered toward the inward direction from the drum inlet. This is to prevent the damage to the laundry caused by the laundry flows between the door 50 and the gasket 60 and the wear of the gasket 60 by being driven into the drum (30). In addition, a coupling hook 82 protrudes from the rear surface of the auxiliary lifter 80 as shown in FIGS. 2 and 4 so as to be coupled to the inner wall surface of the drum 30.

The auxiliary lifter 80 may have a trapezoidal cross-sectional shape, but the shape of the auxiliary lifter 80 is not limited thereto.

In addition, a through hole 84 may be formed on the upper surface of the auxiliary lifter 80 to allow the washing water to flow into and out of the inside.

In addition, the auxiliary lifter 80 may be installed on the same line as each main lifter 70.

Referring to the operation of the present invention configured as described above as follows.

First, laundry and detergent are contained in the drum 30, and when power is applied, the driving motor 40 is driven after the washing water is supplied to the tub 20 so that the drum 30 rotates.

Subsequently, when the drum 30 rotates, the main lifter 70 provided on the inner wall surface of the drum 30 is rotated like the drum 30 by the rotation of the drum 30. Then, the laundry in the lower part of the drum 30 is caught by the main lifter 70 by the rotation of the main lifter 70, and is pulled upward of the drum 30, and then the main lifter 70 is moved to the drum 30. If it is located on the upper side of the drum 30, the weight is dropped to the lower side by its own weight, the washing water is introduced into the interior through the through hole 72 of the main lifter 70, when the main lifter 70 rises upwards It flows out through the through hole 72 by its own weight. As this series of processes is repeated for a predetermined time, the impact caused by the rising / falling of the laundry and the washing water and the friction between the laundry and the inner wall of the drum 30 and the main lifter 70 are generated. And the washing for the laundry is made by the dissolution of the detergent added to the wash water.

On the other hand, when the drum 30 rotates, the main lifter 70 and the auxiliary lifter 80 installed on the inner wall of the inlet side of the drum 30 are also rotated together, and the main lifter 70 is rotated by the rotation of the drum 30. And when the laundry is upwardly caught by the auxiliary lifter 80, some laundry flows in front of the drum washing machine A through the main lifter 70 and flows between the door 50 and the gasket 60. The laundry flowing between the 50 and the gasket 60 is prevented from being introduced by the auxiliary lifter 80.

That is, the auxiliary lifter 80 provided on the inner wall of the inlet side of the drum 30 is formed such that the height protruding from the inner wall of the drum 30 gradually decreases toward the inward direction from the drum inlet, thereby rotating the drum 30. When the main lifter 70 and the auxiliary lifter 80 lifts the laundry, the laundry moves inward of the drum 30, thereby preventing the laundry from flowing between the door 50 and the gasket 60. Will be.

Since the laundry is collected in the inward direction of the drum 30 by the auxiliary lifter 80, the amount of laundry is reduced at the inlet of the drum 30, the laundry between the door 50 and the gasket 60 during the dehydration stroke. Even if the water flows in, the laundry slides along the inner wall of the drum 30 and the laundry flowing between the door 50 and the gasket 60 exits, causing damage to the laundry and abrasion of the gasket 60 due to contact with the laundry. Can be prevented.

In the drum washing machine having the auxiliary lifter according to the present invention as described in detail above, the auxiliary protrusion formed on the inner wall of the inlet side of the drum on which the main lifter is installed is gradually lowered from the inner wall of the drum toward the inward direction. By installing a lifter, it is possible to prevent the laundry from flowing between the door and the gasket during the washing and rinsing stroke, and to prevent the damage of the laundry and the wear of the gasket, and to improve the washing ability. .

Although the above has been described with reference to a preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment, and those skilled in the art without departing from the spirit of the present invention described in the claims below. Those skilled in the art will readily appreciate that various modifications are possible.

Claims (3)

In a drum washing machine in which a plurality of main lifters are installed in a longitudinal direction on an inner wall of a drum, Drum washing machine having an auxiliary lifter, characterized in that the auxiliary lifter is installed between the main lifter and the main lifter. The drum washing machine according to claim 1, wherein the auxiliary lifter is installed at the drum inlet side. The drum washing machine according to claim 1 or 2, wherein the auxiliary lifter is formed such that the height protruding from the inner wall of the drum is gradually lowered from the drum inlet toward the inward direction.

Images