KR19990041366U - Upper corner deformation preventing device of washing machine - Google Patents

Abstract

The present invention relates to an upper corner deformation preventing device of a washing machine, to prevent the concentrated load on the upper corner by modifying the structure of the upper corner coupled to the outer case, thereby preventing deformation of the upper corner and increasing the capacity of the washing machine. I did it.

To this end, the present invention is provided between the outer case (1), the outer tub (2) installed in the outer case (1), and the outer case (1) and the outer tub (2) a plurality of reducing the vibration Dampers 10, a plurality of upper corners 11 installed in the outer case 1 to fix upper portions of the dampers 10, and upper pivots 11 of the dampers 10 at the upper corners 11, respectively. In the washing machine provided with the groove portion (12) is placed; The flange 101 is formed in a state of being bent several times under the upper corner 11 after being connected to one side of the upper corner 11, and the end of the flange 101 is fixed to the outer case 1. .

Description

Upper corner deformation preventing device of washing machine

The present invention relates to a washing machine, and more particularly to an upper corner deformation preventing device of the washing machine.

In general, a washing machine puts laundry, water and detergent together, and then washes the laundry while rotating according to a signal generated from the controller.

Then, the configuration of the washing machine for reference as follows.

As shown in FIG. 1, the washing machine includes an outer case 1, an outer tub 2 installed to be supported in the outer case 1, and an inner tub 3 rotatably installed in the outer tub 2. And a pulsator 4 rotatably installed on the inner bottom surface of the inner tub 3 to remove contaminants by generating mechanical stirring force in the laundry, and one side of the outer bottom surface of the out tub 2. Coupled to the motor 5 to generate a driving force, and coupled to a central portion of the outer bottom surface of the outer tub 2 to reduce the driving force of the motor and to selectively rotate the inner tub 2 and the pulsator 4. And a water supply valve 7 formed on one side of the upper part of the outer case 1 to be opened and closed to supply necessary washing water according to a user's selection through a water supply hose (not shown), and the It is installed at the lower part of the outer tub (2) and the drain hose (9) A drain valve 8 that opens and closes to drain the wash water used for washing and rinsing to the outside of the outer case 1, and is installed between the outer case 1 and the outer tube 2 and the inner tub 3. A damper 10 for preventing vibration and noise generated by the inner tub 3 and the outer tub 2 which are eccentrically rotated due to the bias of the laundry contained in the), and an upper portion of the outer case 1. It is composed of a top cover 19 to be coupled.

In the conventional washing machine configured as described above, when the user inserts laundry into the inner tub 3 in the state of opening the door installed at the upper part of the outer case 1, closes the door, and selects a mode provided on the controller, the controller Washing, rinsing, and dehydration are automatically performed within a certain time according to the generated control signal.

That is, when the washing mode is selected, the water supply valve 7 is opened so that the wash water to be used for washing is supplied through the water supply valve 7, and the washing water supplied to the water supply flows directly into the inner tub 3 to be filled by a predetermined height. When the washing water to be used for washing is filled in the inner tub 3 by a certain height, the water supply valve 7 is closed and further water supply is stopped, and at the same time, the motor fixed to one side of the outer bottom surface of the outer tub 2 ( 5) is repeatedly driven in the forward and reverse directions.

In this way, when the motor 5 is driven in the forward and reverse directions, the driving force is transmitted to the clutch 6 coupled to the center of the outer bottom surface of the outer tub 2 through the V-belt, and the clutch 6 is connected to the motor. The driving force of (5) is decelerated for a certain time.

As the pulsator 4 is rotated as the driving force of the motor 5 is transmitted to the pulsator 4 by the clutch 6 in the decelerated state, the laundry in the inner tub 3 rotates and water flows. The laundry is generated and washed by the rotational force of the pulsator 4 and the frictional force between the inner tub 3 and the decomposition force of the detergent.

When the washing operation is completed by the above-described action, the drain valve 8 installed in the drain hose 9 opens under the control signal of the controller, so that the wash water used for washing is outcased through the drain hose 9. Is drained to the outside.

In addition, since the rinsing action is performed by the same action as the above-described washing at the time of rinsing, a specific action is omitted, and hereinafter, only the dehydration time will be described below.

In dehydration, the clutch 6 receives the driving force of the motor 5 received through the V-belt in one direction while draining the rinsing water used for the rinsing in one direction, and the first deceleration is performed by the inner tub 3 and the pulsator 4. The inner tub 3 and the pulsator 4 are rotated at the same time at a high speed since the rotated speed is transmitted.

Accordingly, while the laundry in the inner tub 3 is pushed outward by the centrifugal force, the moisture contained in the laundry is discharged. At this time, the drain valve 8 is open so that the moisture discharged from the laundry leaves the drain hose 9. Through the drainage to the outside of the washing machine and thus dehydration is complete, all the actions of the washing machine are finished.

Here, if the laundry is twisted at the time of washing and is not released during the rinsing or draining stroke and the dehydration stroke is started, the inner tub 3 is eccentrically rotated because the laundry is biased to one side in the inner tub 3, and the eccentricity is caused. Since the inner tub 3 and the outer tub 2 come into contact with each other by the rotating inner tub 3, vibration occurs in the outer tub 2.

The vibration transmitted to the outer tub 2 is reduced by balancing the outer tub 2 while the plurality of dampers 10 installed between the outer case 1 and the outer tub 2 are operated, respectively.

As described above, if the laundry contained in the inner tub (3) is biased to one side, when the dehydration stroke starts, the inner tub (3) and the outer tub (2) that are eccentrically rotated are transmitted to the outer tub (2). Vibration is reduced by a damper 10 is provided between the outer case (1) and the outer tub (2) is operated respectively, the upper portion of the damper 10 in the upper end of the outer case (1) is a damper coupling means Each of the damper coupling means includes a plurality of upper corners 11 and respective dampers 10 formed at each corner of the upper end of the outer case 1, as shown in FIGS. 2 and 3. An upper pivot 15 formed at an upper portion of the upper corner 11 to be rotatably fixed to each upper corner 11, a support rod 16 formed at each of the dampers 10, and positioned at a lower portion of the upper pivot 15; Lower surfaces of the upper pivots 15 formed in the upper corners 11, respectively. A groove portion 12 on which the upper pivot 15 is placed in contact with each other, an opening portion 13 formed on one side of the groove portion 12 and cut out toward the outer tub 2 so that the support rod 16 can be inserted therein; A guide hole formed at the lower center of the groove part 12 and positioned to support the support rod 16 of the damper 10 seated on the groove part 12 and guides the support rod 16 to be flowable by vibrating. 14) and a plurality of fastening holes 17 formed outside the upper corner 11 to fix the upper corner 11 in the outer case 1 to which the plurality of screws 18 are fastened; It is formed on the inner flat portion relative to the ends of both corners of the upper corner 11 is composed of a coupling hole 20 to which the screw 18 is fastened so that the top cover 19 and the upper corner 11 are fixed.

The groove portion 12 of the upper corner 11 is formed in a circular spherical shape, and the lower surface of the upper pivot 15 has a shape of the groove portion 12 so as to maximize the contact area with the groove portion 12. It is formed in the same way.

The inner corner of the upper corner 11 of the outer tub 2 is bent into a "b" shape to reinforce the strength of the upper corner 11, and the coupling hole 20 is formed in at least one. It is.

In the conventional washing machine configured as described above, the upper corners 11 are respectively coupled to upper corners of the outer case 1, that is, the upper corner 11 of the upper corner 11 is brought into contact with the upper corner of the outer case 1. Since each of the screws 18 are fastened to the plurality of fastening holes 17 formed in the 11, the upper corners 11 are coupled to the upper surface of the outer case 1 by the fastening force of the screws 18.

Support rods of the respective dampers 10 through openings 13 which are cut out toward the outer tubs 2 on one side of the grooves 12 of the upper corners 11 coupled to the respective corner portions of the upper surface of the outer case 1. 16 is moved toward the center of the upper corner 11, that is, the outer case 1, and is located in the guide hole 14 of the upper corner 11, The upper pivot 15 of the damper 10 is mounted.

Since the inner circumferential surface of the groove 12 is formed in a circular spherical shape, and the lower end surface of the upper pivot 15 is formed in the same shape as the inner circumferential surface of the groove 12, the groove 12 and the upper pivot 15 are formed. The bottom surface of the contact is in close contact with the groove 12 and the upper pivot 15 is widened.

When the upper portion of the damper 10 is coupled to the upper portion of the outer case 1, the upper cover 19 is positioned on the upper portion of the outer case 1, and then passes through the upper cover 19 to the upper corner 11. As the screw 18 is fastened to the coupling hole 20 of the top cover 19, the top cover 19 is fixed to the upper portion of the outer case 1.

As described above, the upper portion of each damper 10 is coupled to the upper corner portions in the outer case 1, the lower portion of each damper 10 is coupled to the lower side of the outer surface of the outer tub 2, respectively, When the laundry contained in the tub 3 is dehydrated in a state inclined to one side, the inner tub 3 which is rotated eccentrically collides with the outer tub 2, so that the vibration generated in the outer tub 2 is caused by the outer tub 2. It is reduced by the respective dampers 10 which are respectively operated in accordance with the vibrations transmitted to the v 2.

However, since each damper of the conventional washing machine reduces the vibration transmitted to the outer tub, the load F as shown in FIG. 3 acts on each damper, so that the upper corner of the upper pivot of each damper is coupled to the outer case. The moment M to be rotated downward with the part as the origin is generated.

If the load (F) is in the elastic range of the inner end deflection deformation of the upper corner, the upper corner repeats the original shape and deflection phenomenon, but when the load (F) is applied beyond the elastic limit, the upper corner is originally The shape of the upper corner is deformed due to the deformation from the shape, and the opening of the upper corner is opened.

In addition, since the groove portion of the upper corner deformed by the load F applied to the upper corner and the upper pivot bottom surface of the damper are in line contact without surface contact, a concentrated load is generated in the upper corner, so that the upper corner and upper Pivot is rapidly worn out, friction noise due to vibration caused by the wear of the upper corner and the upper pivot was also a problem that the reliability of the product is lowered.

The present invention has been made to solve the above problems, to modify the structure of the upper corner coupled to the outer case to prevent the concentrated load on the upper corner to prevent deformation of the upper corner and to increase the capacity of the washing machine Its purpose is to make it possible.

In order to achieve the above object, the present invention provides an outer case, an outer tub installed in the outer case, a plurality of dampers installed between the outer case and the outer tube to reduce vibration, and each damper disposed in the outer case. A washing machine comprising: a plurality of upper corners for fixing an upper portion of the upper corners, and grooves in which upper pivots of dampers are placed on the upper corners; An upper corner deformation preventing device of a washing machine is provided, wherein a flange is formed in a state of being bent several times under the upper corner after being connected to one side of the upper corner, and the end of the flange is fixed to the outer case.

1 is a cross-sectional view schematically showing a general washing machine.

Figure 2 is a plan view showing a state where the conventional upper corner of the washing machine is located.

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

Figure 4 is a plan view showing the present upper corner structure of the washing machine.

5 is a cross-sectional view taken along the line II-II of FIG. 4;

Figure 6 is another embodiment showing the structure of a flange for supporting the upper corner.

Figure 7 is another embodiment showing the subject innovation upper corner.

Explanation of symbols for main parts of the drawings

101: flange 102: dustproof member

103: first bent portion 104: second bent portion

105: third bend

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5.

Since the structure of the washing machine has been mentioned in the conventional configuration, overlapping portions thereof will be omitted, and only the same structure will be given the same reference numeral as the conventional structure.

Figure 4 is a plan view showing the structure of the subject innovation upper corner of the washing machine, Figure 5 is a cross-sectional view of the II-II of Figure 4, the subject innovation is the outer case (1), the outer case (2) in the outer case (1) Is provided, a plurality of dampers (10) for reducing vibration between the outer case (1) and the outer tub (2), the upper portion of each damper (10) in the upper portion of the outer case (1) A plurality of upper corners 11 are formed to fix each of the upper and lower corners.

Under the upper corner 11, the flange 101 in a state in which the upper corner 11 is integrally connected to one side of the upper corner 11 and bent several times to reinforce the rigidity of the upper corner 11 and to support the upper corner 11. Is formed, and the end of the flange 101 is fixed to the outer case 1.

As shown in FIG. 5, the flange 101 is integrally connected to one side of the upper corner 11 to be bent to be in contact with the bottom surface of the upper corner 11, and the other portion is inclined at a predetermined angle. The first bent part 103 to be bent, the second bent part 104 integrated with the first bent part 103 and a part of which is in contact with the inner surface of the outer case 1, and the second bent part ( A third bent portion 105, which is integral with the 104 and is fixed to the upper surface of the outer case 1, is formed.

In another shape of the flange 101 as shown in Figure 6, integrally connected to one side of the upper corner 11 is bent to be in contact with the bottom surface of the upper corner 11, the other portion is inclined at a constant angle A first bent part 103 that is bent to have a second bent, a second bent part 104 integrated with the first bent part 103 and a part of which is in contact with an inner surface of the outer case 1, and the second bent part. It is bent so as to be integrally formed with the 104 and the end is formed of a third bent portion 105 fixed between the upper surface of the outer case 1 and the upper corner 11.

Between the flange 101 which is in contact with the inner surface of the outer case 1, that is, between the inner surface of the outer case 1 and the second bent portion 104 of the flange 101 is a partial section from the lower end point In the section, there is provided a dustproof member 102 which prevents friction noise due to slipping and contact and vibration transmitted to the outer case 1.

As shown in FIG. 7, the groove 12 of each upper corner 11 on which the upper pivot 15 of the damper 10 is mounted is mounted so that a plurality of dampers 10 may be installed in the upper corners 11. A plurality is formed.

The present invention configured as described above is as follows.

First, the upper pivot 15 of the damper 10 is placed on each groove portion 12 formed in the upper corners 11 respectively coupled to the upper corners of the upper portion of the outer case 1, so The upper portion of the damper 10 is coupled to.

The flange 101 is continuously formed integrally with one side of the upper corner 11, and the end of the flange 101 is fixed to the outer case 1, whereby the upper corner 11 is formed by the flange 101. Stiffness is prevented, so that the upper corner 11 is prevented from sagging and deforming by dampers 10 which are respectively operated to reduce vibrations transmitted to the outer tub 2.

In more detail, the flange 101 is inclined at an angle toward the outer case 1 and extends to the groove portion 12 in a state of being in contact with one side of the upper corner 11 along the lower surface of the upper corner 11. The first bent part 103 of the bent, the second bent part 104 of the flange 101 formed in succession to the first bent part 103 of the flange 101 is the inner surface of the outer case (1) It is bent to ascend to the upper side of the outer case (1) in contact with the.

The third bent part 105 formed in series with the second bent part 104 of the flange 101 is bent to be in contact with the upper surface of the outer case 1, and the bent third bent part 105 is provided in plurality. It is fixed to the outer case 1 like the upper corner 11 by two screws 18.

As described above, since the flange 101 is successively formed in the upper corner 11 and the end of the flange 101 is fixed to the outer case 1, the rigidity of the upper corner 11 is improved, thereby When the damper 10 reduces the vibration generated in the outer tub 2 by operating the inner tub 3 and the outer tub 2 which are eccentrically rotated during dehydration due to bias, the dampers 10 Deflection and deformation of the upper corner 11 are prevented by the load F applied on the upper side of the upper pivot 15 of 10).

Therefore, the vibration transmitted to the outer tub 2 is smoothly reduced while each damper 10 is operated.

In addition, since the dustproof member 102 is installed between the second bent portions 104 in contact with the inner surface of the outer case 1, the damper 10 is operated to reduce the vibration transmitted to the outer tub 2. Vibration transmitted to the outer case 1 by) is prevented by the anti-vibration member 102 and friction noise due to contact with the inner surface of the outer case 1 is reduced.

Here, the other shape of the flange 101 integrally formed on the upper corner 11 is contacted along the bottom surface of the upper corner 11 integrally with one side of the upper corner 11, as shown in FIG. Extends to the groove portion 12 in a state, and the first bent portion 103 of the flange 101 is bent to be inclined at a predetermined angle toward the outer case 1 side, and to the first bent portion 103 of the flange 101. The second bent part 104 of the flange 101 successively formed is bent up to the upper side of the outer case 1 in contact with the inner surface of the outer case 1.

The third bent portion 105 of the flange 101 formed in series with the second bent portion 104 of the flange 101 is positioned between the upper surface of the outer case 1 and the upper corner 11 to provide a plurality of screws. The upper corner 11 is coupled to and fixed to the outer case 1 by the upper corner 11 so that each upper corner 11 is coupled to each upper corner portion of the outer case 1 and the flange 101 is connected to each other. ), The rigidity of the upper corner 11 is improved.

Since the dustproof member 102 is installed between the second bent portion 104 in contact with the inner surface of the outer case 1, the vibration transmitted to the outer tub 2 by the dustproof member 102 is damper ( When 10) is reduced, the vibration transmitted to the outer case 1 is prevented, and frictional noise due to contact with the inner surface of the outer case 1 is reduced.

As shown in FIG. 7, a plurality of grooves 12 are formed in each upper corner 11 coupled to each upper corner portion of the outer case 1, and each upper in which the plurality of grooves 12 is formed is formed. By integrally forming the flange 101 on one side of the corner 11, the rigidity of the upper corner 11 is reinforced not only by the flange 101, but also a plurality of dampers (1) in each upper corner 11. 10) can be installed so that the washing machine can be increased in capacity.

As described above, the present invention is integrally formed on one side of the upper corner formed in each of the corners in the outer case of the washing machine so as to support the upper portion of the plurality of dampers that reduce the vibration generated in the outer tub of the washing machine, that is, the upper pivot of the damper. By forming a flange that is bent several times and the end of the flange is fixed to the outer case to reinforce the rigidity of each upper corner, it is possible to install a plurality of dampers in the outer case to increase the capacity of the washing machine as well as washing and dehydration Due to the bias of the laundry contained in the inner tub, the vibration generated when the inner tub and the outer tub which are eccentrically rotated are prevented from being concentrated at one place so that the deformation of the upper corner is prevented.

Claims (5)

An outer case installed in the outer case, an outer tub installed in the outer case, a plurality of dampers disposed between the outer case and the outer tube to reduce vibration, and a plurality of upper corners installed in the outer case to fix the upper portion of each damper; In the washing machine provided with grooves on which the upper pivot of the damper is placed on each upper corner; The upper corner deformation preventing device of the washing machine, characterized in that the flange is formed in the state bent several times in the lower side of the upper corner in succession to the upper corner, and the end of the flange is fixed to the outer case. The method of claim 1, The flange is integrally connected to one side of the upper corner, and the first bent part of which part is in contact with the bottom surface of the upper corner, and the second bent part which is integral with the first bent part and part is in contact with the inner surface of the outer case; The upper corner deformation preventing device of the washing machine, which is integrated with the second bent part and comprises a third bent part fixed to an upper surface of the outer case. The method of claim 1, The flange is integrally connected to one side of the upper corner, and the first bent part of which part is in contact with the bottom surface of the upper corner, and the second bent part which is integral with the first bent part and part is in contact with the inner surface of the outer case; And a third bent portion integrated with the second bent portion and having an end fixed between the upper surface of the outer case and the upper corner. The method of claim 2 or 3, The upper corner deformation preventing device of the washing machine, characterized in that the dustproof member is provided between the outer case and the second bent portion of the flange in contact with the outer case. The method of claim 1, The upper corner deformation preventing device of the washing machine, characterized in that a plurality of grooves are formed in each upper corner to install a plurality of dampers in each upper corner.