KR200203889Y1 - Tub fixing structure of a drum washing machine - Google Patents

Abstract

The present invention relates to a tub fixing structure of a drum washing machine, wherein a rib having a fitting protrusion on a tub accommodated therein is bent, and a rib having a fitting groove is bent on the back tub to receive a fitting protrusion, and the tub and the back tub are By being detachably fixed by an elastic fixing member to include ribs, a separate fixing screw is eliminated to reduce costs and to improve workability more effectively. Breakage of tub and back tub and leakage of wash water The phenomenon can be prevented in advance, thereby improving the reliability of the product.

Description

Tub fixing structure of drum washing machine

The present invention relates to a tub fixing structure of the drum washing machine, and more particularly, to a tub fixing structure of the drum washing machine to improve the work efficiency by improving the structure for fixing the back tub on the front of the tub.

In general, a drum washing machine for washing laundry due to a drop generated when the drum is rotated, as shown in FIG. 1, the tub 20 and the drum 20 made of a plastic material installed inside the washing machine body 10 and the washing machine body 10. 12) and a drive unit (14) for rotating the drum (12).

The washing machine body 10 is equipped with a detergent container 16 for supplying washing water together with detergent into the drum 12, and on one side of the detergent container 16, washing, rinsing, dehydrating and drying the laundry in each mode, for example. The control panel 18 for controlling the mode is provided.

The drum 12 is usually made of stainless steel having a myriad of dehydration holes on its surface, and is rotatably housed inside the tub 20, and a shaft on which the pulley is pressed is fixed to the rear side of the drum 12.

The drive unit 14 is a belt for transmitting the motor and its driving force to the pulley, which is caught by the rotating shaft and the shaft of the motor, respectively.

Meanwhile, as shown in FIG. 2, the back tub 24 and the tub gasket 28 are fixed to the front and rear surfaces of the tub, and the front and rear surfaces of the tub 20 are first and second convex portions 22a. Rib 22 having a) 22b is bent, and one side of the back tub 24 has first and second "凹" shapes at positions corresponding to the first and second protrusions 22a and 22b. The rib 26 having the recesses 26a and 26b is bent.

The through hole 22a 'and the screw hole are fastened to the first convex portion 22a and the first concave portion 24a so that the fixing screw 30 for fastening the back tub 24 to the front surface of the tub 20 is tightened. 24a ') are formed respectively.

In the conventional tub fixing structure configured as described above, the back tub 24 and the tub gasket 28 are fixed to the front and rear surfaces of the tub 20, respectively. That is, the first and second convex portions 22a and 22b of the tub 20 are respectively inserted into the first and second concave portions 26a and 26b protruding from the ribs 26 of the back tub 24. The back tub 24 is brought into surface contact with the front surface of the tub 20. At this time, a sealant is applied to the second convex portion 22b to prevent leakage of the wash water.

Then, the center of the through hole 22a 'of the first convex portion 22a and the screw hole 26a' formed in the first concave portion 26a are aligned, and then tightened with the fixing screw 30 to the tub 20. Secure the back tub 24.

Thereafter, the door 32 is installed to be opened and closed on the front of the main body 10 to wash the laundry, the laundry is stored in the drum 12, and then the control panel 18 is input for each mode. When the drum washing machine is operated, the drum 12 is rotated forward and backward by the driving force transmitted from the driving unit 14, and washing, rinsing, dehydrating stroke and drying stroke are sequentially performed to complete the washing.

At this time, the door 32 is composed of a door cover, a glass and a holder, the outer circumferential surface is in close contact with the balance weight 34 coupled to the back tub 24 maintains airtightness.

However, since the back tub is fixed by using a plurality of fixing screws on the front of the tub as described above, the cost is increased due to the use of the fixing screws, and the work efficiency is lowered. Not only does the rib bent on the tub and the back tub is easily broken, there is a problem that the wash water leaks due to the gap of the ribs.

The present invention is to solve the above problems, the object of the present invention by fixing the tub and the back tub with a fixing body having elasticity, the separate fixing screw is eliminated to reduce the cost as well as to improve workability more effectively. It is possible to prevent the breakage of the tub and the back tub and wash water in advance to provide a tub fixing structure of the drum washing machine that can improve the reliability of the product accordingly.

1 is a perspective view showing a main part configuration through a typical drum washing machine,

FIG. 2 is a view of the drum washing machine shown in FIG. 1 taken along line A-A, and a sectional view showing a conventional tub fixing structure; FIG.

3 is an exploded perspective view illustrating a tub fixing structure of the drum washing machine according to the present invention;

4 is a cross-sectional view of the tub fixing structure shown in FIG.

Explanation of symbols on the main parts of the drawings

40: Tub 42,48: Rib

42a: fitting protrusion 44: reinforcement rib

44a, 50a: Hanging groove 46: Back Tub

48a: fitting groove 50: auxiliary rib

52: spring clip

Features of the present invention for achieving the above object, in the tub fixing structure of the drum washing machine for fixing the tub is a drum housed therein and a balance tub coupled to the front of the tub, the tub and the bag A rib having fitting protrusions and fitting grooves is bent in the tub, respectively, and the tub and the back tub are achieved by being detachably fixed by a fixing body to surround the ribs.

The ribs according to the present invention are achieved by integrally injection molding the reinforcing and auxiliary ribs to prevent breakage of the ribs when the tub and the back tub are fixed by the fixture.

The fixture according to the present invention is achieved by being made of a spring clip having elasticity so that one end is caught by each of the engaging grooves formed in the reinforcement and auxiliary ribs.

Hereinafter, a preferred embodiment of the tub fixing structure of the drum 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 tub fixing structure according to the present invention, in the present invention refer to the same reference numerals for convenience of description for the same parts of the configuration of the drum washing machine.

A rib 42 having a fitting protrusion 42a is bent at one surface of the tub 40 in which the drum 12 is accommodated therein, and a reinforcing rib 44 having a locking groove 44a is formed at one side of the rib 42. It is injection molded integrally. And, the front of the tub 40 is fixed to the back tub 46 to which the balance weight 34 is coupled, the rear of the gasket tub 28 through which the shaft penetrates is fixed.

In the back tub 46, that is, the portion in contact with the front surface of the tub 40, the rib 48 having the fitting groove 48a is bent to accommodate the fitting protrusion 42a, and the rib 48 is caught. The auxiliary rib 50 in which the groove 50a is formed is injection molded.

The tub 40 and the back tub 46 are separably fixed by a fixing body having a predetermined elasticity, and the fixing bodies are fastening grooves 44a formed in the reinforcing and auxiliary ribs 44 and 50, respectively ( 50a) is a spring clip 52, one end of which is engaged. The spring clip 52 has a certain radius of curvature R and the arc length (L) in order to be able to impart an elastic force.

Here, the reinforcing and auxiliary ribs 44 and 50 are used to prevent breakage of the ribs 42 and 48 which are bent therein when the tub 40 and the back tub 46 are fixed to each other by the spring clips 52. The arc length (L) and the radius of curvature (R) of the spring clip 52 can be changed according to the elastic force for fixing the tub 40 and the back tub 46.

In the tub fixing structure of the drum washing machine according to the present invention configured as described above, the tub 42 and the back tub 46 are in close contact with each other so that the ribs 42 and 48 are in surface contact with each other. At this time, the fitting protrusion 42a is inserted into the fitting groove 48a formed in the rib 48 of the back tub 46.

Here, it is preferable that a sealant is applied to one surface of the fitting protrusion 42a to prevent washing water from leaking into the gap between the ribs 42 and 48 as in the prior art.

In addition, both ends of the spring clip 52 hang on the engaging grooves 44a and 50a of the reinforcement and auxiliary ribs 44 and 50 which are injection molded integrally with the ribs 42 and 48, respectively. 40) and the back tub 46 is firmly fixed.

Therefore, it is possible to simply fix the tub 40 and the back tub 46, thereby improving the work efficiency, and the conventional fixing screw for fixing the tub and the back tub can be deleted to reduce the cost will be.

Thereafter, the laundry stored in the drum proceeds to the washing, rinsing, dehydrating and drying administration modes as described above to complete the washing.

As described above, according to the tub fixing structure of the drum washing machine according to the present invention, by fixing the tub and the back tub with a fixing body having elasticity, a separate fixing screw is deleted to reduce costs and improve workability more effectively. In addition, breakage of the tub and the back tub and leakage of the wash water can be prevented in advance, thereby improving the reliability of the product.

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)

In the tub fixing structure of the drum washing machine for fixing the tub accommodated in the drum and the back tub coupled to the front balance of the tub, Ribs having fitting protrusions and fitting grooves are bent to the tub and the back tub, respectively, and the tub and the back tub are fixed to the tub washing structure, characterized in that they are separably fixed by a fixing body to surround the ribs. The tub fixing structure of a drum washing machine according to claim 1, wherein reinforcing and auxiliary ribs are integrally injection-molded to prevent the ribs from being damaged when the tub and the back tub are fixed by the fixing body. . The tub fixing structure of a drum washing machine according to claim 1, wherein the fixing member is formed of a spring clip having elasticity such that one end thereof is caught by a locking groove formed in the reinforcing and auxiliary ribs. 4. The tub fixing structure of a drum washing machine according to claim 3, wherein the spring clip is manufactured to have a predetermined radius of curvature and an arc length to impart an elastic force.