KR20040057481A - A drum washer - Google Patents

Abstract

PURPOSE: A drum-type washing machine is provided to improve the washing performance and the rinsing performance by increasing the movability of the laundry. CONSTITUTION: A drum-type washing machine comprises a tub(54) horizontally installed inside a cabinet(52); a drum(56) rotatably installed inside the tub; and a lift(70) protruded to the inner wall of the drum. The tub is filled with washing water. The laundry is put in the drum. At least one of right and left slant faces(72,74) is concavely formed to the lift, to vertically move the laundry by lifting up and dropping the laundry as the drum rotates and widen the area contacting with the laundry and the washing water.

Description

Drum Washing Machine {A drum washer}

The present invention relates to a drum washing machine which washes laundry by lifting a plurality of lifts as a plurality of lifts are installed on an inner wall of the drum to rotate the drum, and in particular, by changing the shape of the lift, the area of contact with the laundry and the wash water is changed. The present invention relates to a drum washing machine which can be widened to improve washing and rinsing performance.

In general, the drum washing machine washes by using friction between the drum and the laundry rotated by the driving force of the motor in the state in which detergent, washing water, and laundry are put inside the tub and drum installed horizontally, and there is almost no damage to the laundry. Do not get tangled with each other, pounding and rubbing has a washing effect.

1 is a side cross-sectional view showing a drum washing machine according to the prior art, Figure 2 is a perspective view showing a lift of the drum washing machine according to the prior art, Figure 3 is a cross-sectional view taken along the line a-a of FIG.

The drum washing machine according to the related art has a cabinet (2) having an input hole (not shown) formed on its front surface as shown in FIG. 1, a door (2a) which can be opened and closed in the input hole, and the cabinet (2). 2) a tub (4) horizontally installed inside the tub (4) containing wash water, a drum (6) rotatably installed inside the tub (4) and friction with the laundry as the laundry is contained and rotated, and the tub A motor (8) installed at the rear of the (4) to generate a rotational force, and a spider (10) installed between the motor (8) and the drum (4) and fixed to the rear of the drum (4) to transmit power; And a rotating shaft 12 connected between the spider 10 and the motor 8 and protruded at regular intervals on an inner wall of the drum 6 to pull laundry as the drum 6 rotates. It comprises a plurality of lift 20 falling.

Here, the tub (4) and the drum (6) is formed in a cylindrical shape with a front opening so that laundry can be introduced from the input hole, the drum (6) has a plurality of dehydration holes (6a) formed on the inner wall The lift 20 is installed to protrude from the inner wall of the drum 6.

In particular, the lift 20 is left and right inclined surfaces 22 and 24 formed to be inclined upwardly so that the upper ends thereof are connected to each other, as shown in FIGS. 2 and 3, and before or after the left and right inclined surfaces 22 and 24. The front and rear surfaces 26 and 28 formed to block the rear end are opened to allow the wash water to be circulated therein, and a hole 20a is formed at the top to wash the wash water.

At this time, the left and right inclined surfaces 22 and 24 are formed in a flat plate shape, and an upper end of the left and right inclined surfaces 22 and 24 is connected to be formed to be horizontal with the rotational center C of the drum. The lower end of the lift 20 fixed to the inner wall of the drum 6 is formed in a quadrangular shape horizontal to the center of rotation (C) of the drum.

Therefore, as the drum 6 is rotated, the laundry placed under the drum 6 is caught by the lift 20 and moved over a predetermined height along the circumferential direction of the drum 6, and then the drum 6 ) Falling to the bottom, washing and rinsing are performed by impact force and flexion by dropping.

However, the drum washing machine according to the prior art flows along the left and right inclined surfaces 22 and 24 even when laundry is caught by the lift 20 because the left and right inclined surfaces 22 and 24 of the lift are formed in a flat shape. Since it is difficult to raise the laundry above a certain height because of the lowering, there is a limit to improve the washing and rinsing performance.

In addition, in the drum washing machine according to the related art, since the lift 20 is formed horizontally with the rotation center C of the drum, the laundry is vertical along the limited inner circumferential surface of the drum 6 as the drum 6 is rotated. When the laundry is distributed irregularly in the drum 6 because it flows only in the direction, the drum 6 rotates at a high speed while laundry is eccentric in the drum 6 during dehydration. There is a problem that occurs.

The present invention has been made in order to solve the problems of the prior art, a drum that can not only easily wash the laundry, but also to lift the laundry to fall above a certain height to increase the fluidity of the laundry to improve the washing and rinsing performance The purpose is to provide a washing machine.

1 is a side cross-sectional view showing a drum washing machine according to the prior art,

Figure 2 is a perspective view of the lift of the drum washing machine according to the prior art,

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

Figure 4 is a side cross-sectional view showing a first embodiment of the drum washing machine according to the present invention,

5 is a perspective view showing a first embodiment of a lift of a drum washing machine according to the present invention;

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

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

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

9 is a side sectional view showing a second embodiment of a drum washing machine according to the present invention;

10 is a perspective view showing a second embodiment of the lift of the drum washing machine according to the present invention;

FIG. 11 is a cross-sectional view taken along the line D-D of FIG. 10.

<Explanation of symbols on main parts of the drawings>

52: cabinet 54: tub

56: drum 58: motor

60: spider 62: axis of rotation

70: lift

Drum washing machine according to the present invention for solving the above problems is installed horizontally inside the cabinet tub to wash the fresh water, the drum is installed rotatably inside the tub to contain the laundry, and to project the drum inner wall It is installed and consists of a plurality of lifts in which at least one of the inclined surfaces of the left and right inclined surface is concave in order to increase the contact area with the laundry and the washing water while at the same time as the drum is rotated to pull the laundry up and fall off do.

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

Figure 4 is a side cross-sectional view showing an example of a drum washing machine according to the invention, Figure 5 is a perspective view showing an example of the lift of the drum washing machine according to the invention, Figures 6 to 8 are AA, BB of Figure 5, respectively And sectional drawing along the CC line.

The first embodiment of the drum washing machine according to the present invention includes a cabinet 52 in which an input hole (not shown) is formed on the front surface as shown in FIG. 4, and a door 52a installed to be opened and closed in the input hole. Tub 54 is installed horizontally inside the cabinet 52 to accommodate the wash water, and the drum 56 is rotatably installed inside the tub 54 to rub the laundry as the laundry is loaded and rotated to wash the laundry. ), A motor 58 installed at the rear of the tub 54 to generate rotational force, and fixed between the motor 58 and the drum 56 to be installed at the rear of the drum 56 to transmit power. The spider 60 and the rotating shaft 62 connected between the spider 60 and the motor 58 and the drum 56 are installed to protrude at predetermined intervals in the circumferential direction on the inner wall of the drum 56. As it rotates, it just pulls the laundry up and drops it In addition, it comprises a lift 70 for guiding the laundry to flow in the horizontal direction.

Of course, the drum washing machine according to the present invention has a water supply means 64 for supplying the washing water into the tub 54 and the drum 56 during washing, and the tub 54 and the drum 56 inside the rinsing and dehydration. Drainage means 66 for draining the washing water is further included.

Here, the tub 54 and the drum 56 are formed in a cylindrical shape whose front is opened so that laundry can be introduced from the input hole, and the drum 56 has a plurality of dehydration holes 56a formed on an inner wall thereof. The lift 70 is installed to protrude from the inner wall of the drum 56.

In particular, the lift 70 blocks the left and right inclined surfaces 72 and 74 and the front and rear ends of the left and right inclined surfaces 72 and 74 formed to be inclined upward so that the upper ends thereof are connected to each other, as shown in FIG. 5. The front and rear surfaces (76, 78) formed to give, so that the wash water can be circulated inside the opening is opened, the hole 70a is formed at regular intervals to allow the wash water to be circulated.

In this case, the left and right inclined surfaces 72 and 74 are inclined surfaces located on the left and right sides of the lift when viewed from the front of the drum, and the contact area with the laundry and the wash water is widened, and the laundry is in the left and right inclined surfaces. It is formed in a concave curved shape so as not to easily flow along the (72, 74), the upper end of the left and right inclined surfaces (72, 74) is connected to a straight line inclined with respect to the rotation center (C) of the drum It is formed, the lower end of the lift 70 is fixed to the inner wall of the drum 56 is formed in a rectangular shape horizontal to the center of rotation (C) of the drum.

Therefore, the lift 70 is formed in a linear shape in which the upper end is inclined with respect to the rotation center C of the drum, while the lower end is formed in a horizontal quadrangular shape with respect to the rotation center C of the drum. The angles α and β formed by the right inclined surfaces 72 and 74 and the drum 56 on which the lift 70 is installed are changed from the front end to the rear end.

Specifically, as shown in FIGS. 6 to 8, the lift 70 has a linear angle between the left inclined plane and the drum and decreases linearly from the front end to the rear end. (β) is formed to increase linearly, the angle (α) between the left inclined surface and the drum at the tip is 80 ° ~ 90 °, the angle (β) between the right inclined surface and the drum is 20 ° ~ 30 It becomes °, the angle (α) formed by the left inclined surface and the drum at the rear end is 20 ° ~ 30 °, the angle (β) formed by the right inclined surface and the drum is formed to be 80 ° ~ 90 °.

9 is a side cross-sectional view showing a second embodiment of a drum washing machine according to the present invention, Figure 10 is a perspective view showing a second embodiment of the lift of the drum washing machine according to the present invention, Figure 11 is a DD line of FIG. According to the cross-sectional view.

On the other hand, the second embodiment of the drum washing machine according to the present invention is configured in the same manner as the first embodiment, as shown in Figure 9, protrudes at regular intervals in the circumferential direction on the inner wall of the drum 56, the laundry is washed It is installed so that the drum 56 is rotated to include a lift 80 to lift and drop the laundry as well as to lift the laundry water to fall.

Here, the lift 80, the left and right inclined surfaces 82 and 84 formed to be inclined upwardly so as to be connected to each other as shown in FIGS. 10 and 11, and the front and rear ends of the left and right inclined surfaces 82 and 84, respectively. The front and rear surfaces (86,88) formed to prevent the formed to allow the wash water to be circulated inside the opening is opened, the hole 80a is formed at regular intervals to allow the wash water to be circulated at the top, As the drum 56 is rotated, the left and right inclined surfaces 82 and 84 are formed in a concave curved shape so as to contain the wash water. The upper end of the left and right inclined surfaces 82 and 84 is curved. It is formed into a shape.

In particular, the lift 80 is formed in an 'S' shape so as to contain the wash water even if the drum 56 is rotated in the forward or reverse direction.

Therefore, when the drum 56 and the lift 80 are rotated and the washing and rinsing stroke is performed, the lift 80 has the left and right inclined surfaces 82 and 84 formed in a concave curved shape. Not only is it easily caught by the left and right inclined surfaces 82 and 84 but also laundry is not easily flowed along the left and right inclined surfaces 82 and 84, so that it can be lifted higher and the lift 80 is 'S'. Because it is formed in the shape of a child can wash and rinse up as well as laundry can improve the washing and rinsing performance.

Looking at the operation of the first embodiment of the drum washing machine according to the present invention configured as described above are as follows.

First, when the washing machine is operated, the quantity of water is sensed and the washing water is supplied to the water level set inside the tub 54 and the drum 56, and then the drum 56 is forward or reverse as the motor 58 is operated. Washing and rinsing strokes are performed while rotating.

Here, as the drum 56 is rotated, the lift 70 fixed to the inner wall of the drum 56 is also rotated, and the laundry located below the drum 56 is caught by the lift 70 and circumferentially. After moving above a certain height, and falling down the drum 56, washing and rinsing are performed by impact force and flexion by dropping.

In this case, the left and right inclined surfaces 72 and 74 of the lift 70 are formed in a concave curved shape, so that the laundry is easily caught by the left and right inclined surfaces 72 and 74, and the laundry is inclined to the left and right inclined surfaces. Since it does not flow easily along (72, 74), the laundry can be lifted higher, thereby improving washing and rinsing performance.

In addition, the lift 70 is formed so that the upper end is inclined with respect to the rotation center (C) of the drum, the laundry is caught on the lift 70 as the drum 56 is rotated in the forward direction is lift (70) While guided along the upper end of the drum 56 to be moved to the rear side, while the drum 56 is rotated in the reverse direction the laundry caught on the lift 70 is guided along the top of the lift 70 In order to be moved to the front side of the drum 56 by flowing the laundry in the horizontal direction of the drum 56 it can improve the washing and rinsing performance of the laundry.

Next, when the washing and rinsing stroke is completed as described above, the motor 58 is operated so that the drum 56 is slowly rotated in the forward direction and the laundry caught by the lift 70 is at the top of the lift 70. The drum 56 is rotated at a high speed so that the drum 56 is rotated at a high speed so that the wash water included in the laundry is centrifugally applied to the tub 54 through the dehydration hole 56a of the drum. The dehydration stroke is carried out by making it exit to the side.

At this time, the laundry is guided by the lift 70 is moved to the rear side of the drum 56 is located close to the rotating shaft 62 and the dehydration stroke is performed so that the drum 56 in the state that the laundry is eccentric Even if rotated at high speed, the amount of eccentricity can be reduced, so vibration and noise generated by eccentricity during dehydration can be reduced.

Drum washing machine according to the present invention is configured as described above because the left and right inclined surface of the lift to pull up the laundry is formed concave, as the drum is rotated, the laundry is not easily caught on the lift as well as caught on the lift Since the laundry does not slip easily, the laundry may be pulled up by a predetermined height or more, thereby increasing the fluidity of the laundry, thereby improving washing and rinsing performance.

In addition, the drum washing machine according to the present invention is formed so that the upper end of the connecting portion of the left, right inclined surface of the lift is inclined with respect to the rotation center of the drum, the laundry caught on the lift as the drum rotates. It is guided along the upper end and flows back and forth inside the drum, and can be evenly distributed in the drum, thereby improving washing and rinsing performance, and when dewatering, the eccentric amount can be moved to the rear side of the drum. There is an advantage to reduce the vibration and noise.

In addition, the drum washing machine according to the present invention is not only formed in the left and right inclined surfaces of the lift concave, but also formed in the 'S' shape as a whole so that the wash water is picked up as the drum rotates to circulate the wash water There is an advantage to improve the washing and rinsing performance.

Claims (7)

Tub installed horizontally inside the cabinet and the fresh water wash, A drum rotatably installed inside the tub and containing laundry; The inclined surface of at least one of the left and right inclined surfaces is installed to protrude on the inner wall of the drum so that the laundry is pulled up and dropped as the drum is rotated to flow in the vertical direction, and the contact area with the laundry and the washing water is widened. Drum washing machine comprising a lift formed. Tub installed horizontally inside the cabinet and the fresh water wash, A drum rotatably installed inside the tub and containing laundry; The upper end, which is installed to protrude on the inner wall of the drum and is connected to the left and right inclined surfaces to guide the laundry and flow in a horizontal direction as the drum is rotated, has a linear shape inclined with respect to the horizontal line of the rotation center of the drum. Drum washing machine comprising a lift formed. The method of claim 1, The lift is characterized in that the upper end of the connection portion of the left and right inclined surface is formed in a straight line inclined with respect to the horizontal line of the rotation center of the drum so that the drum can be rotated to guide the laundry to flow as the drum is rotated Drum Washing Machine. The method of claim 2 or 3, The lift is drum washing machine, characterized in that the lower end fixed to the inner wall of the drum is formed in a rectangular shape horizontal to the center of rotation of the drum. The method of claim 4, wherein The lift machine is a drum washing machine, characterized in that the angle (α) formed between the left inclined surface and the drum decreases linearly from the front end to the rear end, and the angle (β) formed between the right inclined surface and the drum increases linearly. . The method of claim 5, wherein The lift has an angle α between the left inclined surface and the drum at an end of 80 ° to 90 °, and an angle β between the right inclined surface and the drum is 20 ° to 30 °, and at the rear end, The drum washing machine, wherein the angle α is 20 ° to 30 °, and the right bevel and the drum are formed to be 80 ° to 90 °. The method of claim 1, The lift drum washing machine characterized in that the upper end of the connection portion of the left, right inclined surface formed in the 'S' shape so as to drop the washing water as the drum rotates.