KR20000055211A - Washer having tiltable drum - Google Patents

Abstract

PURPOSE: A laundry machine having a slant washer tub is provided to achieve enhanced efficiency of washing action while arranging the washer tub to be inclined during washing and rinsing operations, and prevent vibration and noise while arranging the washer tub to be set upright during a drying operation. CONSTITUTION: A laundry machine comprises a pipe(80) installed in a lower portion of an outer case(51) so as to support a lower portion and side surfaces of a washer tub(60), the pipe(80) supporting the washer tub(60) by a hydraulic pressure, a hydraulic pump(90) connected to the pipe(80) in such a manner as to allow the washer tub(60) to be inclined at a predetermined angle and which controls pressure of the fluid contained within the pipe(80), and a resilient contact member arranged in a portion where the tub(60) contacts the pipe(80). The resilient contact member further comprises a roller(75) contacting the tub(60), a rod(71) having an end thereof connected to the roller(75), a rod base(72) connected to the other end of the rod(71), a piston(74) contacting the fluid contained within the pipe(80), and a spring(73) arranged between the piston(74) and the rod base(72).

Description

Tiltable washing machine {Washer having tiltable drum}

The present invention relates to a washing machine in which the washing tank is inclined, and in particular, a hydraulic device operated by hydraulic pressure supports the washing tank and adjusts the hydraulic pressure between the front and rear sides of the washing tank to make the washing tank inclined or upright, thereby improving washing power and washing deviation. It relates to a washing machine having a tiltable washing tank by the hydraulic device that can bring a reduction of.

In general, a washing machine is a machine that removes stains on clothing. When it is put on clothing, it is removed from the fibers by the chemical action of detergent when put in the washing liquid, but it takes a long time by the action of detergent alone. Applying a mechanical action increases the speed at which the time is missing, it is the role of the washing machine to provide such a mechanical action.

1 is a right side view of a washing machine according to the prior art.

As shown in FIG. 1, the conventional washing machine includes an outer case 1 of the washing machine, a washing tub 10 suspended inside the outer case 1, and the washing tub 10 suspended from the outer case 1. At the same time it consists of four hangers (2) to perform the damper function, the pulsator (3) of the washing tank 10 and the drive unit (4) for driving the inner tank 11 of the washing tank (10).

Here, the washing tank 10 is connected to the outer tub 12 and the drive unit 4, which has four brackets 12a installed at the lower part to hang the lower side of the hanger 2, and is rotated and It consists of the inner tank 11 in which the pulsator 3 for increasing efficiency is provided.

In addition, the drive unit 4 includes a clutch device (not shown) and a planetary gear (not shown) to adjust the rotation and rotation direction of the pulsator 3 and the inner tank 11.

In addition, the upper end of the hanger 2 is hung on the bracket (1a) formed on the outer case 1, the lower end of the damper case (2b) is provided with a spring (2a) to act as a damper As described above, the bracket 12a is formed at the lower portion of the outer tub 12. Therefore, the washing tank 10 is suspended inside the outer case (1).

Referring to the operation of the washing machine according to the prior art configured as described above are as follows.

First, when a user puts laundry and detergent into the inner tank 11 and operates a washing machine, when the water rises to a predetermined height for washing by supplying water into the washing tank 10, the driving unit 4 is operated. The pulsator 3 and the inner tank 11 are rotated to wash.

After washing in the above state, when a predetermined time elapses, the driving unit 4 stops the operation, the drain valve 5 installed in the lower portion of the outer tank 12 is opened while the water in the washing tank 10 Drained to the outside through the drain pipe (6).

When the drainage is completed, the water is supplied to the washing tank 10 again to rise to a certain height to perform a rinsing operation. The rinsing operation is usually performed two to three times and is performed in the same operation as the washing operation described above. However, it takes less time to operate the drive unit 4.

When the washing and rinsing operation is completed as described above, only the inner tank 11 is rotated at a high speed so that a dehydration operation for removing water contained in the laundry is performed. That is, the inner tank 11 is rotated at a high speed so that the water contained in the laundry is moved to the outer tank 12 through a small hole formed in the inner tank 11 and then drained to the outside through the drain pipe 6. .

However, in the conventional washing machine, since the washing and rinsing operation is performed in the state in which the washing tank 10 is upright, there is a problem in that there is a limit in washing power and a lot of washing deviation occurs in the laundry.

The present invention has been made in order to solve the above problems of the prior art, by installing a hydraulic pump in a structure for supporting the washing tank, the washing tank is inclined at a certain angle during washing and rinsing operation, and when the dehydration to stand upright washing tank It is an object of the present invention to provide an inclined variable washing machine that can prevent vibration and noise that may be generated by dehydration in a tilted state.

1 is a right side view of a washing machine according to the prior art,

2 is a right side view of the washing machine according to the first embodiment of the present invention;

3 is a right side view when the washing tank is inclined in the washing machine according to the first embodiment of the present invention;

4 is a right side view of a washing machine according to a second embodiment of the present invention;

5 is a right side view when the washing tank is tilted in the washing machine according to the second embodiment of the present invention;

6 is a graph relating to the washing power and the washing deviation according to the inclination angle of the washing tank,

7 is a view showing the distribution of the force at the cold point inside the washing tank when the washing tank is inclined.

<Explanation of code about main part of drawing>

51 outer case 52 drive unit 60 washing tank

61: outer shell 62: inner shell 63: pulsator

71: rod 72: rod base 73: spring

74: piston 75: roller 80, 100: pipe

90, 110: hydraulic pump 100a: front bellows 100b: rear bellows

The present invention is installed to support the lower side and the lower side of the washing tank in the outer case and the pipe to support the washing tank by the pressure of the fluid, and connected to the pipe so that the washing tank is inclined at an angle to adjust the pressure of the fluid inside the pipe It characterized in that it comprises a fluid pump and the elastic contact means which is installed on the contact portion of the washing tank and the fluid pipe serves as a damper.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a right side view of the washing machine according to the first embodiment of the present invention, FIG. 3 is a right side view of a washing tank inclined in the washing machine according to the first embodiment of the present invention, and FIG. The right side view of the washing machine according to the second embodiment of the present invention, Figure 5 is a right side view when the washing tank is inclined in the washing machine according to the second embodiment of the present invention, Figure 6 is a cleaning force according to the inclination angle of the washing tank And a graph relating to the washing deviation, and FIG. 7 is a diagram illustrating a distribution of forces at a cold point inside the washing tank when the washing tank is inclined.

Washing machine having an inclined variable washing tub by the hydraulic apparatus according to an embodiment of the present invention is installed in the outer case 51 and the outer case 51, as shown in Figure 2 and 3 laundry is washed Washing tub 60, which is installed in the lower portion of the washing tub 60, the drive unit 52 for supplying power so that the washing is made in the washing tub 60, and installed in the lower portion of the washing tub 60, the washing tank A pipe 80 supporting the 60 and a hydraulic pump 90 installed in the center of the pipe 80 to adjust the inclination of the washing tub 60 by hydraulic pressure.

Here, the washing tub 60 is an inner tub 61 which is supported by the pipe 80 and installed inside the outer tub 61 so as to be connected to the driving unit 52, and a pulsator 63 installed below. It consists of 62.

In addition, the pipe 80 is connected to the lower side and the side of the washing tub 60 to support the washing tub 60. Looking at the support structure, the end of the pipe 80 is provided with a piston 74 The outer side of the piston (74) is provided with a spring (73) that performs a damper function, and the outer side of the spring (73) is fixed to a rod base (72) and a rod (71) on which a roller (75) is installed. The spring 73 and the rod base 72 are fitted to the pipe 80.

In particular, since the fluid is supplied inside the pipe 80, the washing tub 60 is supported by hydraulic pressure, and the hydraulic pressure of both of the hydraulic pump 90 is changed by the operation of the hydraulic pump 90. The washing tub 60 is configured to be inclined or upright.

Referring to the operation of the washing machine having an inclined variable washing tub by the hydraulic apparatus according to the first embodiment of the present invention configured as described above are as follows.

First, during the washing and rinsing operation, as shown in FIG. 3, the hydraulic pump 90 is operated to move the fluid contained in the front side of the pipe 80 to the rear side. While the pressure of the portion supporting the washing tub 60 drops in the front, the pressure of the portion supporting the washing tub 60 in the back rises so that the washing tank 60 is inclined at an angle. Therefore, when the operation of the hydraulic pump 90 is constantly controlled, the inclination angle of the washing tub 60 may be adjusted.

Of course, even when the washing machine door is opened, the hydraulic pump 90 may be operated so that the washing tank 60 is inclined to facilitate storage of laundry.

As described above, the driving unit 52 is operated while the washing tub 60 is inclined at a predetermined angle to perform washing and rinsing operations.

On the other hand, during dehydration, as shown in FIG. 2, the fluid of the front and rear of the pipe 80 is simply opened to flow by the hydraulic vehicle to both sides without supplying power to the hydraulic pump 90. The hydraulic pressure of the front and rear of the pipe 80 is the same so that the washing tub 60 is erected upright. Therefore, vibration and noise that may occur when dehydration proceeds while the washing tub 60 is inclined may be prevented.

As described above, the driving unit 52 is operated in a state in which the washing tub 60 is upright, and dehydration proceeds.

In the above, the drive unit 52 can be used both with and without the clutch as in the prior art.

On the other hand, the washing machine having an inclined variable washing tub by the hydraulic apparatus according to the second embodiment of the present invention is installed bellows (100a, 100b) instead of the spring 73 to perform the damper function as shown in Figures 4 and 5 As one, by the operation of the hydraulic pump 110, the inclined state of the washing tub 60 is adjusted as in the case of the first embodiment.

That is, the bellows (100a, 100b) is installed at the end of the pipe 100 for supporting the washing tank 60 performs a damper function and at the same time inclined the washing tank 60 by the operation of the hydraulic pump 110. do.

First, in the case of washing and rinsing, as shown in FIG. 5, the hydraulic pump 110 is operated so that the hydraulic pressure in front of the pipe 100 is reduced and the hydraulic pressure in the rear is increased, and the front of the pipe 100 is increased. The bellows (100a) of the contraction and the bellows (100b) of the rear is inflated, so that the washing tank 60 is inclined forward by a certain angle.

As described above, the washing and rinsing operation is performed while the washing tub 60 is inclined, and, of course, the hydraulic tub 110 is operated to allow the washing tub 60 to tilt while the washing tank 60 is opened. It can be done easily.

In the case of dehydration, simply opening the hydraulic pump 110 so that the fluid can be moved between the front and rear of the pipe 100 without supplying additional power, the front and rear hydraulic pressures are automatically equal. The washing tub 60 is upright. Dehydration then proceeds to dehydrate the laundry.

On the other hand, Figure 6 is a graph comparing the washing power and the washing deviation according to the inclination angle of the washing tank, it can be seen that the washing power and the washing deviation is respectively the maximum and minimum around 15 °. In this case, the laundry deviation is a value indicating the degree to which the washing is even.

And as shown in Figure 7 when looking at the distribution of the force at one point (m) of the washing tank (D) inclined at a certain angle (θ), first, gravity (mg) in the vertical direction, the inclined surface of the washing tank (D) In (S), the centrifugal force (CF) by the rotation of the pulsator or the washing tank (D) inner tank is acting respectively, the force acting on one quality point (m) of the washing tank (D) in the inclined surface (S) is the inclined surface (S) In the downward direction, the force (CF + mg * sinθ), which combines the centrifugal force (CF) and the force due to gravity (mg * sinθ), acts, and the upward direction of the inclined surface (S) is the gravity force at the centrifugal force (CF). Force (CF-mg * sinθ) minus force by (mg * sinθ) will act. Therefore, the force acting on one quality point is asymmetrical compared to the washing tank standing in the vertical direction according to the inclination angle (θ) of the washing tank (D). will be.

However, if the washing tank (D) is inclined severely, since the influence of gravity (mg) is greater than the influence of the centrifugal force (CF), the imbalance of the washing tank (D) is intensified, and the difficulty of rotating driving occurs, and the washing tank ( Maternity generated along the wall of D) is weakened, and the laundry is spread evenly and the laundry is not made and is united as one. As a result, since the laundry inside the laundry is not properly washed, the washing power is reduced and the washing deviation is large. Therefore, as shown in FIG. 5, the inclination angle θ of the washing tank D is preferably inclined at 0 ° <θ <30 ° according to the washing conditions and the structure of the washing machine.

As described above, the inclined variable washing machine according to the present invention proceeds in a state in which the washing tank 60 is inclined at an angle at the time of washing and rinsing, thereby improving cleaning power and at the same time reducing washing deviations and dehydrating the washing tank 60. When operating in an inclined state provides an effect that can prevent in advance the vibration and noise that can be generated.

Claims (3)

A fluid pump installed at the lower part of the outer case to support the lower side and the side of the washing tank to support the washing tank by the pressure of the fluid, and a fluid pump connected to the pipe so that the washing tank is inclined at an angle. And an elastic contact means installed at the contact portion of the washing tub and the fluid pipe. The method of claim 1, The elastic contact means includes a roller in contact with the washing tank, a rod connected to one end of the roller, a rod base connected to the other end of the rod, a piston in contact with the fluid in the pipe, and the piston and the rod base. Inclined variable washing machine comprising a spring installed. The method of claim 1, The elastic contact means is inclined variable washing machine, characterized in that the bellows is installed at the end of the pipe.