KR19990034633U - Laundry tank support structure of washing machine - Google Patents

Abstract

The present invention relates to a support structure for a washing tank of a washing machine, wherein a frame having a through hole and an opening hole connected thereto is fixed to each corner of an outer case of the washing tank in which the washing tank is built, and the frame is a washing tank. When the vibration occurs, the deformation is prevented by the reinforcing ribs to reinforce the rigidity of the frame, thereby preventing the deformation of the frame during the abnormal vibration of the washing machine, and also reducing the vibration and noise transmitted to the outer case of the washing machine more effectively to improve the quietness. You can.

Description

Laundry tank support structure of washing machine

The present invention relates to a support structure for the washing tank of the washing machine, and more particularly, to improve the support structure of the damper for reducing the vibration of the washing tank, thereby supporting the washing tank supporting structure of the washing machine to prevent deformation of the frame due to abnormal vibration of the washing tank. It is about.

In general, the automatic washing machine is to remove contaminants from the laundry by using the friction action of the water flow caused by the emulsification of the detergent and the rotation of the pulsator and the impact on the laundry. The sensor detects the amount and type of laundry and automatically sets the washing method and conditions, and then performs washing under the control of the microcomputer while washing the water to an appropriate level.

As shown in FIG. 1, the fully automatic washing machine includes an outer case 12 and an outer case 12 having a top cover 10 coupled to the upper portion thereof, and a washing tank 14 in which laundry and washing water are stored. And, it is composed of a drive motor 16 is installed in the lower portion of the washing tank 14 to provide a driving force and a power transmission device 20 that is driven by the belt 18.

Inside the washing tank 14, a dewatering tank 22 for dewatering the laundry by centrifugal force due to the rotation of the driving motor 16 is installed, and the upper portion of the dewatering tank 22 maintains the horizontality of the dewatering tank 22. A balancer 24 is mounted, and a pulsator 28 coupled to the power transmission device 20 is rotatably mounted on the bottom surface thereof so as to make the water flowing into the water supply valve 26 into a special water flow. Is located.

On one side of the power transmission device 20, a drain valve 30 for discharging contaminated washing water is coupled to the lower part of the washing tank 14, and the washing tank 14 absorbs vibration and noise generated when the washing machine is operated. Suspensions are installed to mitigate.

Each edge of the outer case 10 is fixed to the frame 32 made of iron plate material, the through-hole 32b through which the opening hole 32a is communicated to the outside of the frame 32, and the washing tank ( On the outer circumferential surface of 14), a plurality of fixing pieces 34 protrude.

The suspension device is supported by an annular stationary rod 36 and a stationary piece 34 which are held by the through hole 32b while passing through the opening hole 32a of the frame 32 and are fixed when the laundry is dehydrated. It is provided with a damper 38 including a spring (not shown) to mitigate the vibration transmitted to the outer case 12 along the).

The conventional laundry tub support structure configured as described above stores the laundry to be washed in the dehydration tank 22 and the wash water through the water supply valve 26, and then drives the driving motor 16, and the driving force thereof is driven by the belt 18. The pulsator 28 is rotated after the rotational force is reduced while being transmitted to the power transmission device 20.

Thereafter, the washing water is subjected to the washing stroke by centrifugal force in accordance with the rotation of the pulsator 28 to perform the washing stroke. At this time, the contaminated washing water ascends along the dehydration tank 22, and the foreign matter on the laundry is collected as it passes through the strainer 40 fixed to the upper side of the inner side thereof.

At this time, the vibration and noise generated during the operation of the washing tank 14 is alleviated by the spring of the damper 38 supported by the fixing piece 34 and at the same time the frame 32 fixed to the corner of the outer case 12. Is absorbed by. That is, the vibration and noise transmitted along the damper 28 are absorbed by the frame 32 supporting the fixed rod 36 by the through hole 32b to reduce the vibration.

However, as the fixed rod of the damper for reducing the vibration of the washing machine is supported by the frame as described above, the frame is formed as the concentrated stress is generated at both sides of the opening hole when the vibration is abnormal in the washing tank. Not only can be easily deformed, due to this it is not possible to reliably reduce the vibration noise there was a problem that quietness during operation of the washing machine is reduced.

The present invention is to solve the above problems, an object of the present invention by injection molding the reinforcing rib in the frame to reinforce the rigidity to both sides of the opening hole, the deformation of the frame during abnormal vibration of the washing machine In addition to preventing the vibration and noise transmitted to the outer case of the washing machine more effectively to provide a washing tank support structure of the washing machine that can improve the quietness.

1 is a cross-sectional view showing a washing tub support structure of a conventional washing machine;

2 is an enlarged plan view of the main portion of the laundry tub support structure shown in FIG.

3 is a plan view showing a washing tub support structure of a washing machine according to the present invention;

4 is a cross-sectional view A-A of the tub support structure shown in FIG. 3.

Explanation of symbols on the main parts of the drawings

12: outer case 14: washing tank

34: fixed piece 36: fixed rod

38: damper 50: frame

50a: opening hole 50b: through hole

52: reinforcing rib 52a: bead

Features of the present invention for achieving the above object, the washing tank is built in the outer case, the outer peripheral surface of the washing tank is fixed to one end of the damper for absorbing and mitigating the intensity and noise generated when driving the washing machine, In the washing tank support structure of the washing machine provided to support the washing tank by fixing the other end of the damper to each corner portion of the outer case, the outer case is a through-hole to enable to hold the fixing rod of the damper And a frame having opening holes in communication therewith, the frame being provided with a rigid reinforcing part for reinforcing the rigidity of the frame when vibration occurs in the washing tub, and preventing the deformation of the frame by the rigid reinforcing part. Is achieved.

The rigid reinforcing portion according to the present invention is achieved by being provided with a reinforcing rib integrally injection molded into the frame to have the same circumferential shape as the through hole of the damper.

The reinforcing rib according to the present invention is achieved by gradually increasing the area of both ends to prevent deformation due to stress concentrated on both sides of the opening hole of the frame.

Hereinafter, a preferred embodiment of the washing tub support structure of the washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 is a view showing a washing tank support structure according to the present invention, the frame 50 for supporting the washing tank 14 is fixed to each corner of the outer case 12, the frame 50 A through hole 50b through which the opening hole 50a communicates with the outer side is formed, and the frame 50 is provided with a rigid reinforcing part to prevent deformation by reinforcing the rigidity of the frame 50 during abnormal vibration of the washing machine.

On the outer circumferential surface of the washing tub 14, the fixing piece 34 protrudes in the same number as the frame 50, and the fixing piece 34 and the frame 50 absorb vibration and noise generated when the washing tank 14 is driven. The damper 38 is latched and supported to alleviate it. That is, the fixing rod 36 of the damper 38 is supported by the through hole 50b while passing through the opening hole 50a of the frame 50, and the lower end including the spring is supported by the fixing piece 34. .

Rigid reinforcement portion is a reinforcing rib 52 that is integrally injection-molded in the frame 50 to have the same circumferential shape as the through hole (50b) and the bead (bead) to further strengthen the rigidity by projecting to the center portion of the reinforcing rib (52) A) 52a is provided, and the reinforcing ribs 52 are gradually increased in area at both ends to prevent deformation due to stress concentrated at both sides of the opening hole 50.

Referring to the operation of the washing tub support structure of the washing machine according to the present invention configured as described above in detail.

The fixing rod 36 of the damper 38 is supported by the through hole 50b of the frame 50 fixed to each corner of the outer case 12 to support the washing tank 14. That is, while inserting a portion of the damper 38 into the opening hole 50a, the fixing rod 36 is inserted to be positioned above the through hole 50b, and then the other end of the damper 38 is fixed to the washing tank 14. Fix it to (34) to complete the assembly of the suspension.

Thereafter, when the driving motor 16 is driven to wash the laundry stored in the dehydration tank 22, the driving force thereof is transmitted to the power transmission device 20 by the belt 18 and the power transmission device 20 at the same time. Rotating the pulsator 28 combined with) washes the laundry to make the water flow up and down.

When the laundry stored in the dehydration tank 22 is pulled to one side and the vibration and the noise are generated in the washing tank 140 after the washing stroke is completed, the vibration and the noise are fixed to the fixing piece 34 and the through hole. The damper 38 supported by the frame 50 in which the 50b is formed is absorbed and relaxed.

At this time, the deformation of the frame 50 due to the vibration force transmitted along the damper 38 by the reinforcing ribs 52 having the beads 52a to the fixing rod 36 and on both sides of the opening hole 50a is generated. It is possible to prevent the stress concentration phenomenon to minimize the occurrence of abnormal vibration due to deformation of the frame 50 during the operation of the washing machine.

According to the laundry tub support structure of the washing machine according to the present invention as described above, by injection molding the reinforcing rib in the frame to reinforce rigidity to both sides of the opening hole to prevent the deformation of the frame during abnormal vibration of the washing machine Of course, it is possible to more effectively reduce the vibration and noise transmitted to the outer case of the washing machine to improve the quietness.

The present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (4)

A washing tank is built in the outer case, and one end of the damper is fixed to the outer circumferential surface of the washing tank to absorb and mitigate the magnitude and noise generated when the washing machine is driven, and the other end of the damper is formed at each corner of the outer case. In the washing tank support structure of the washing machine provided to support the washing tank by fixing, The outer case is fixed to the frame having a through hole and the opening hole communicated to the fixing rod of the damper to be supported, the frame for reinforcing the rigidity of the frame when vibration occurs in the washing tank Rigid reinforcement is provided, washing tank support structure of the washing machine, characterized in that to prevent deformation of the frame by the rigid reinforcement. The washing tank supporting structure of claim 1, wherein the rigid reinforcing portion is provided with a reinforcing rib integrally injection-molded in the frame to have the same circumferential shape as the through hole of the damper. The washing tank supporting structure of claim 2, wherein the reinforcing ribs have a wider area at both ends to prevent deformation due to stress concentrated on both sides of the opening hole of the frame. The laundry tub support structure of claim 2, wherein the reinforcing ribs are formed with beads of the same shape to increase rigidity of the frame.