KR20100081211A - Drum washer - Google Patents

Abstract

PURPOSE: A drum type washing machine is provided to make the installation direction of a lift different depending on laundry and to easily move the laundry up by attaching/detaching lifts with different heights. CONSTITUTION: A drum type washing machine(100) is composed of a tub(40), a drum(50), and a lift(110). The tub is installed in a cabinet. The tub is installed obliquely. The drum is rotatably installed in the tub. The lift is installed in the drum. The lift gets higher from one end to the other end. The lift is composed of a bottom plate, a cover plate, a sidewall plate, and an endwall plate.

Description

Drum Washing Machine {DRUM WASHER}

The present invention relates to a washing machine, and more particularly, to a drum washing machine that protects delicate laundry and maximizes the flow of the laundry to improve washing and rinsing power.

In general, the drum washing machine washes by using friction between the drum and the laundry rotated by the driving force of the motor while detergent, washing water, and laundry are put inside the tub and drum, and there is little damage to the laundry and the laundry does not get tangled with each other. It has a laundry effect of pounding and rubbing.

1 is a side cross-sectional view schematically showing a conventional drum washing machine, FIG. 2 is a perspective view showing a lift of a conventional drum washing machine, and FIG. 3 is a cross-sectional view taken along line a-a of FIG.

1 to 3, the drum washing machine 10 includes a cabinet 11 in which an input hole (not shown) is formed on a front surface thereof, a door 12 installed to be opened and closed in the input hole, and inside the cabinet 11. Tub 13, which is installed at an inclined side and contains laundry water, is rotatably installed inside the tub 13, and the drum 14 is rubbed with laundry as the laundry is loaded and rotated, and the tub 13 The driving unit 15 is installed at the rear to generate a rotational force, and the plurality of lifts 20 are installed to protrude at an inner wall of the drum 14 at regular intervals to lift and drop the laundry as the drum 14 is rotated. It is configured to include.

The tub 13 and the drum 14 are formed in a cylindrical shape whose front is opened so that laundry can be introduced from the input hole, and the drum 14 has a plurality of dehydration holes formed in the inner wall thereof.

The lift 20 is composed of left and right inclined surfaces 22 and 24 formed to be inclined upwardly so that the upper ends thereof are connected to each other, and side surfaces 26 formed to block the front and rear ends of the left and right inclined surfaces 22 and 24.

The lift 20 has a lower surface open to allow the wash water to be circulated therein, and a hole 20a is formed at the top to allow the wash water to be circulated.

The left and right inclined surfaces 22 and 24 are formed in a flat plate shape, and the upper end of the left and right inclined surfaces 22 and 24 is connected to the center of rotation C of the drum 14 so as to be horizontal. The lower end of the lift 20 fixed to the inner wall of 14 is formed in a quadrangular shape horizontal to the center of rotation (C) of the drum (14).

Accordingly, as the drum 14 is rotated, the laundry placed under the drum 14 is caught by the lift 20 and moved over a predetermined height along the circumferential direction of the drum 14, and then falls below the drum 14. Washing and rinsing are performed by impact force and flexion by dropping.

Since the drum of the conventional drum washing machine has an inclination, the laundry or the washing water tends to be inclined to the inside of the drum, but since the upper part of the lifter is horizontal to the center of rotation of the drum, the laundry located inside the drum moves upwards smoothly. There is a problem that is difficult to make.

Therefore, there is a need for improvement.

The present invention has been made in order to improve the above problems, and an object of the present invention is to provide a drum washing machine, which improves washing power by smoothly moving laundry inside a drum having an inclination.

In order to achieve the above object, the present invention is installed inside the cabinet tub having an inclination; A drum rotatably installed in the tub, the drum having the same inclination as the tub; And provided in the drum, provides a drum washing machine comprising a lift that increases from one end to the other end.

The lift plate is in close contact with the drum; A cover plate located above the bottom surface and increasing from one end to the other end; A side wall plate connecting side ends of the bottom plate and the cover plate; And a single wall plate connecting ends of the side wall plates.

The bottom plate is provided with a locking portion, and the drum is characterized in that the fixing portion is formed by the locking portion is inserted.

The engaging portion protrudes downward from the bottom plate; A bending bar extending from the protruding bar and having elasticity; And a locking protrusion protruding upward from the bending bar.

The fixing part comprises a first through hole portion through which the bending bar passes; A second through hole formed through the bending bar and spaced apart from the first through hole; And a projection groove portion positioned between the first through hole portion and the second through hole portion, the engaging protrusion being inserted into the locking protrusion.

The cover plate has a curvature, and the side wall plate has a curvature corresponding to the cover plate. At this time, the cover plate is characterized in that the 'S' shape.

As described above, the drum washing machine according to the present invention has an effect of changing the installation direction according to the laundry by detaching the lift having a different height.

At this time, when the rear end is higher than the front end of the lift there is an effect to smoothly move the laundry distributed much behind the drum having the inclination upwards.

And when the rear end is lower than the front end of the lift finely moves the laundry distributed in the rear of the drum has an effect of preventing sensitive cloth damage.

Since the drum washing machine according to the present invention has a concave side wall plate of the lift for lifting and dropping the laundry, the laundry is easily caught on the lift as the drum is rotated, and the laundry caught on the lift is not easily slipped, thereby pulling the laundry above a certain height. By dropping up can increase the fluidity of the laundry there is an advantage that can improve the washing and rinsing performance.

The drum washing machine according to the present invention has a shape in which the cover plate of the lift is inclined in a vertical line, so that the laundry caught by the lift may flow in the front and rear directions inside the drum and may be evenly distributed inside the drum. And it is possible to improve the rinsing performance, the laundry can be moved to the rear side of the drum during dehydration has the advantage that the amount of eccentricity is reduced to reduce vibration and noise.

Drum washing machine according to the present invention because the cover plate and the side wall plate of the lift is formed in the overall 'S' shape, as the drum is rotated so that the wash water is lifted up to circulate the wash water to improve the washing and rinsing performance There is an advantage to this.

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

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, definitions of these terms should be made based on the contents throughout the specification.

4 is a view showing a first mounting example in which the lift according to the first embodiment is mounted on a drum washing machine, and FIG. 5 is a second view in which the lift according to the first embodiment of the present invention is mounted on a drum washing machine. 6 shows an example of mounting, and FIG. 6 is a diagram illustrating a coupling relationship between a lift and a drum according to the first embodiment of the present invention.

7 is a view illustrating a lift according to a second embodiment of the present invention, FIG. 8 is a cross-sectional view taken along line AA of FIG. 7, FIG. 9 is a cross-sectional view taken along line BB of FIG. 7, and FIG. 10 is FIG. Sectional drawing along line CC.

11 is a diagram illustrating a lift according to a third embodiment of the present invention, and FIG. 12 is a cross-sectional view taken along the line D-D of FIG. 11.

4 to 6, the drum washing machine 100 according to an embodiment of the present invention includes a cabinet 31 in which an input hole (not shown) is formed on a front surface thereof, and a door 32 installed to be opened and closed in the input hole. ), A tub 40 which is installed to have an inclination inside the cabinet 31 to store the wash water, a drum 50 which is rotatably installed inside the tub 40 and contains laundry, and the tub 40 of the tub 40. It is configured to include a drive unit 41 installed at the rear to generate a rotational force.

Tub 40 and the drum 50 has a shape in which the front is opened so that the laundry is introduced from the input hole, the drum 50 is formed with an entrance hole 51 through which the washing water enters and exits.

The tub 40 is inclined to have an inclination angle a upward on the horizontal line, and the drum 50 has the same inclination angle a as the tub 40.

The drum 50 is provided with a plurality of lift 110 is formed to protrude. The lift 110 lifts and drops laundry as the drum 50 is rotated.

The lift 110 according to the first embodiment of the present invention includes a bottom plate 111, a cover plate 112, a side wall plate 113, and a short wall plate 114.

The bottom plate 111 is in close contact with the inner surface of the drum 50, and the cover plate 112 is spaced apart above the bottom plate 111. The side wall plate 113 connects both side ends of the bottom plate 111 and the cover plate 112, and the end wall plate 114 connects the front end and the rear end of the side wall plate 113, respectively.

A part of the bottom plate 111 and the cover plate 112 are opened to wash water, and the side wall plate 113 and the end wall plate 114 block access to the wash water.

The cover plate 112 has a shape where the other end is higher than the one end based on the horizontal line. That is, the cover plate 112 has an inclination angle a 'corresponding to the inclination angle a of the drum 40.

The side wall plate 113 increases in length from one end to the other end so as to correspond to the cover plate 112.

The lift 110 according to the first embodiment is detachably attached to the drum 50. To this end, a catching part 210 is formed in the bottom plate 111, and a fixing part 220 into which the catching part 210 is inserted is formed in the drum 50.

The engaging portion 210 according to the embodiment of the present invention is provided with a protruding bar 211, a bending bar 212, and a locking protrusion 213.

The protruding bar 211 protrudes downward from the bottom plate 111. The length of the protrusion bar 211 corresponds to the thickness of the drum (50).

The bending bar 212 extends while being bent in one direction at the lower end of the protruding bar 211 and is in close contact with the outer circumferential surface of the drum 50. Contact. The bending bar 212 has elasticity along its length.

The locking protrusion 213 protrudes from the end of the bending bar 212 to press the outer circumferential surface of the drum 50. The locking protrusion 213 has a hook shape having a curved surface.

The fixing part 220 according to the exemplary embodiment of the present invention includes a first through hole 221, a second through hole 222, and a protrusion groove 223.

The first through hole 221 and the second through hole 222 are spaced apart from each other and are symmetrical, and have a hole shape through which the bending bar 212 penetrates. The protrusion groove 223 is positioned between the first through hole 221 and the second through hole 222 and has a groove shape into which the locking protrusion 213 is inserted. When the thickness of the drum 50 is thin, the outer circumferential surface of the drum 50 may be concave and the inner circumferential surface of the drum 50 may be convex to form the protrusion groove 223.

Therefore, when the bending bar 212 is moved in the state penetrated by the first through hole 221 or the second through hole 222, the locking projection 213 is inserted into the projection groove 223 is locked. On the other hand, the lift 110 by the shape of the fixing part 220 may be detachable by changing the direction.

The cover plate 112 is formed to have a shorter width than the bottom plate 111. Because of this, the side wall plate 113 has an inclination, so that the friction caused by the collision between the laundry and the side wall plate 113 by the rotation of the drum 50 is suppressed, and the laundry falls without moving excessively upward.

A curved surface is formed at the connection portion of the cover plate 112, the side wall plate 113, and the end wall plate 114. That is, the cover plate 112, the side wall plate 113 and the end wall plate 114 is a part in contact with the laundry to exclude the angled corners to suppress the damage of the laundry.

In addition, the side wall plate 113 is formed concave. Due to this shape, the lift 110 stably raises the laundry, thereby preventing the laundry from falling down at a low point.

Referring to the operation of the drum washing machine having a lift according to the first embodiment of the present invention.

First, when the drum washing machine 100 is operated, the quantity of water is sensed and the washing water is supplied to the tub 40 and the level set inside the drum 50. Then, as the driving unit 41 is operated, the drum 50 is in the forward direction or Washing and rinsing strokes are performed while rotating in the reverse direction.

As the drum 50 is rotated, the lift 110 installed on the drum 50 is also rotated, and the laundry located at the lower side of the drum 50 is caught by the lift 110 to move more than a predetermined height along the circumferential direction. Then, washing and rinsing are performed by impact force and flexion due to falling while falling to the inner lower side of the drum 50.

On the other hand, the cover plate 112 of the lift 110 has a higher shape than the other end and is detachable and can be changed in direction.

Therefore, when the lift 110 is installed in the drum 50 so that the rear end portion has a higher shape than the front end portion of the cover plate 112, the laundry located in the rear of the drum 50 can be smoothly moved.

In particular, since the laundry tends to collect on the inner back of the drum 50 having an inclination, the use of such a lift 110 enables more laundry to be moved, thereby improving the washing power.

On the other hand, when the lift 110 is installed on the drum 50 so that the front end portion has a higher shape than the rear end of the cover plate 112, only a part of the laundry positioned inside the rear of the drum 50 may be moved.

In particular, since the laundry tends to collect on the inner back of the drum 50 having the inclination, the use of such a lift 110 protects the cloth of the laundry by preventing excessive impact of the delicate clothing.

On the other hand, since the side wall plate 113 of the lift 110 is formed concave, as the drum 50 is rotated, the laundry is not easily caught by the lift 110 and the laundry caught by the lift 110 is not easily slipped. Raise and drop the laundry above its height.

7 to 10, in the lift 120 according to the second embodiment of the present invention, the cover plate 122 has an inclination in a vertical line.

Since the lift 120 according to the second embodiment is similar to the lift 110 according to the first embodiment, the lift according to the second embodiment is different from the lift 110 according to the first embodiment below. Only the configuration of 120 will be described.

The lift 120 according to the second embodiment of the present invention includes a bottom plate 121, a cover plate 122, a side wall plate 123, and a short wall plate 124.

The bottom plate 121 is in close contact with the inner surface of the drum 50, and the cover plate 122 is spaced apart above the bottom plate 121. The side wall plate 123 connects both side ends of the bottom plate 121 and the cover plate 122, and the end wall plate 124 connects the front end and the rear end of the side wall plate 123, respectively.

A portion of the bottom plate 121 and the cover plate 122 is opened to wash water, and the side wall plate 123 and the end wall plate 124 block the washing water.

The cover plate 122 has a shape in which the other end is higher than the one end relative to the horizontal line and has an inclination in the vertical line.

Therefore, the angles α and β formed by the bottom plate 121 and the side wall plate 123 change from the front end to the rear end.

As shown in FIGS. 8 to 10, the angle α formed by the side wall plate 123 and the bottom plate 121 located on the left side from the front end to the rear end is linearly decreased, and the side wall plate located on the right side. An angle β formed between the 123 and the bottom plate 121 is formed to increase linearly.

At this time, the angle α is 80 ° to 90 ° at the front end, the angle β is 20 ° to 30 °, and the angle α is 20 ° to 30 ° at the rear end, and the angle β is It is formed to be 80 ° ~ 90 °.

As the cover plate 122 has an inclination in the vertical line, the side wall plate 123 is coupled with the cover plate 122 by changing the inclination on the horizontal line so as to correspond thereto.

Referring to the operation of the drum washing machine having a lift according to the second embodiment of the present invention. In the following, only the operation of the lift according to the second embodiment which differs from the lift according to the first embodiment will be briefly described.

When washing is performed, the lift 120 is rotated to move the laundry upwards, and the laundry is dropped in one direction while the laundry is moved upward by the cover plate 122 having the inclination.

That is, if the rear end of the cover plate 122 has an inclination toward the right side based on the front end, when the drum 50 is rotated clockwise, the lift 120 is raised and guides the laundry to the rear of the drum 50 to fall. Let's do it. Then, when the drum 50 is rotated in the counterclockwise direction, the lift 120 ascends and guides the laundry to the front of the drum 50 to drop it.

Therefore, the laundry is distributed evenly in the drum 50 in the washing process to improve the washing power, and in the dehydration process, the laundry is distributed evenly in the rear of the drum 50 to reduce the amount of eccentricity, thereby reducing vibration and noise.

11 and 12, in the lift 130 according to the third embodiment of the present invention, the cover plate 132 has a curvature.

Since the lift 130 according to the third embodiment is similar to the lift 110 according to the first embodiment, the lift according to the third embodiment is different from the lift 110 according to the first embodiment below. Only the configuration of 130 will be described.

The lift 130 according to the third embodiment of the present invention includes a bottom plate 131, a cover plate 132, a side wall plate 133, and a short wall plate 134.

The bottom plate 131 is in close contact with the inner surface of the drum 50, and the cover plate 132 is spaced apart above the bottom plate 131. The side wall plate 133 connects both side ends of the bottom plate 131 and the cover plate 132, and the end wall plate 134 connects the front end and the rear end of the side wall plate 133, respectively.

A portion of the bottom plate 131 and the cover plate 132 is opened to wash water, and the side wall plate 133 and the end wall plate 134 block the washing water.

The cover plate 132 has a higher shape at the other end than the one end based on the horizontal line, and forms a curved surface.

In particular, the lift 80 is formed in an 'S' shape so as to contain the wash water even if the drum 50 is rotated in the forward or reverse direction.

As the curvature is formed on the cover plate 132, the side wall plate 123 is formed to have a curvature so as to correspond to the cover plate 132 and is coupled to the cover plate 122.

Referring to the operation of the drum washing machine having a lift according to the third embodiment of the present invention. In the following, only the operation of the lift according to the third embodiment which differs from the lift according to the first embodiment will be briefly described.

When washing is performed, the lift 130 is rotated to move the laundry upwards, so that the laundry is not easily flowed down by the curved cover plate 132 and the side wall plate 133 so that the laundry can be lifted higher.

Since the lift 130 is formed in an 'S' shape, it is possible to drop not only laundry but also wash water, thereby improving washing and rinsing performance.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a side cross-sectional view schematically showing a conventional drum washing machine.

2 is a perspective view showing a lift of a conventional drum washing machine.

3 is a cross-sectional view taken along the line a-a of FIG. 2.

4 is a view showing a first mounting example in which the lift according to the first embodiment of the present invention is mounted on a drum washing machine.

5 is a view showing a second mounting example in which the lift according to the first embodiment of the present invention is mounted on a drum washing machine.

6 is a view illustrating a coupling relationship between a lift and a drum according to the first embodiment of the present invention.

7 is a diagram illustrating a lift according to a second embodiment of the present invention.

8 is a cross-sectional view taken along the line A-A of FIG.

9 is a cross-sectional view taken along line B-B of FIG. 7.

FIG. 10 is a cross-sectional view taken along the line C-C of FIG. 7.

11 is a diagram illustrating a lift according to a third embodiment of the present invention.

12 is a cross-sectional view taken along the line D-D of FIG. 11.

* Description of the symbols for the main parts of the drawings *

40: Tub 50: Drum

110,120,130: Lift 111,121,131: Bottom plate

112,122,132: cover plate 113,123,133: side wall plate

114,124,134: end wall plate 210: engaging portion

211: protrusion bar 212: bending bar

213: engaging protrusion 220: fixing part

221: first through hole 222: second through hole

223: protrusion groove

Claims (8)

A tub installed inside the cabinet and having a slope; A drum rotatably installed inside the tub; And The drum washing machine is installed on the drum, the lifter comprising a lift that increases from one end to the other end. The method of claim 1 wherein the lift A bottom plate in close contact with the drum; A cover plate located above the bottom surface and increasing from one end to the other end; A side wall plate connecting side ends of the bottom plate and the cover plate; And And a single wall plate connecting end portions of the side wall plates. 3. The method of claim 2, The bottom plate is formed with a locking portion, The drum washing machine, characterized in that the fixing portion is formed by the engaging portion is inserted. The method of claim 3, wherein the locking portion A protrusion bar protruding downwardly from the bottom plate; A bending bar extending from the protruding bar and having elasticity; And Drum washing machine comprising a locking projection protruding upward from the bending bar. The method of claim 4, wherein the fixing portion A first through hole portion through which the bending bar passes; A second through hole formed through the bending bar and spaced apart from the first through hole; And And a protrusion groove positioned between the first through hole and the second through hole, the protrusion having a locking protrusion inserted therein. The method according to any one of claims 2 to 5, Drum cover washing machine characterized in that the cover plate has a curvature. The method of claim 6, The side wall plate has a curvature corresponding to the cover plate drum washing machine. The method of claim 6, The cover plate is a drum washing machine, characterized in that the 'S' shape.

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