KR19990007636U - Structure of tub flange for washing machine reservoir - Google Patents

Abstract

The present invention is formed by stepping the receiving portion in the cylindrical portion of the tub flange coupled to the bottom portion of the washing machine reservoir, and correspondingly to form a space in which the upper body and the lower body is integrally formed by the space when used after assembly of the reduction gear assembly It relates to a structure of a tub flange for a washing machine reservoir to prevent noise and vibration.

The present invention forms a locking jaw portion 260 having a groove and a surface while forming a concentric circle with the hole 241 in the accommodating portion 26 inside the cylindrical portion 24 of the tub flange 200, and vertically penetrating. A space 280 is formed in which the upper body 282 and the lower body 283 are integrally formed at different diameters concentrically with the hole 281 to be formed so that the upper body 282 is the groove of the locking jaw portion 260. Is inserted into the, the lower body 283 is to be interviewed on the surface of the locking jaw portion 260, the space 280 is prevented from being eccentric has the effect of preventing the friction noise.

Description

Structure of tub flange for washing machine reservoir

The present invention relates to a structure of a tub flange for a washing machine reservoir having a noise preventing structure, in particular, to form a receiving portion in the cylindrical portion of the tub flange stepped, correspondingly to form a space in which the upper body and the lower body is integrally decelerated It relates to a structure of a tub flange for a washing machine reservoir to prevent noise and vibration by the space after assembly of the gear assembly.

In general, there are various types of washing machines, such as a vortex type washing machine, a drum type washing machine, a stirring type washing machine, etc., by a washing method. The most commonly used washing machine is a vortex type washing machine. The vortex type washing machine reverses the pulsator rotatably installed at the lower portion of the washing tank at high speed to generate water flow (up and down, heart shape, rotation direction, etc.) and the water flows into the laundry. It is one of the most widely used methods to wash them. The vortex type washing machine also has a washing tank rotatably installed inside the reservoir installed inside the outer box to accommodate the washing water, and a pulsator for generating water flow is rotatably installed at the lower portion of the washing tank. The washing tank and the pulsator are rotatably installed by the reduction gear assembly 30 mounted on the bottom portion 14 of the water storage tank 10 as shown in FIG. 1, so that only the pulsator is forward / reversed or the The pulsator and the washing tub are integrally rotated in one direction. The reduction gear assembly 30 is rotatably installed by a driving force (by an electric belt) transmitted from an adjacently installed driving motor. The pulsator is left or right driven by the decelerated output transmitted through the reduction gear assembly 30 to perform the washing stroke and the rinsing stroke, and the washing tank and the pulsator are integrally rotated in one direction to perform the dehydration stroke. will be. Therefore, the vortex type washing machine is to collectively perform a washing stroke, a rinsing stroke, a dehydration stroke, and the like in one tank.

In addition, the reduction gear assembly 30 coupled to the bottom portion 14 of the water tank 10 has a tub flange 20 interposed therebetween, and the tub flange 20 has a bolt hole 221. And a coupling portion 22 is formed radially, and a central portion 24 is formed with a cylindrical portion 24 having a hole 241, and the coupling portion 22 is formed on the bottom portion 14 of the reservoir 10. At the same time that the interview is bolted 222 is screwed together. The tub flange 20 is the tub flange 20 is subjected to the most force in the reservoir 10 for the purpose of reinforcing the force transmitted from the electrical equipment such as the drive motor and the reduction gear assembly 30 not shown. It is common to provide the bottom part 14.

In the accompanying drawings, reference numeral 12 denotes a cylindrical portion of the reservoir 10, 16 a hole through which the shaft of the reduction gear assembly 30 passes, 18 a bolt hole, and 32 a shaft of the reduction gear assembly 30. Each is shown.

In the conventional washing machine, the tub flange 20 coupled to the bottom portion 14 of the water storage tank 10 is radially provided as shown in FIG. 2A and has a coupling portion 22 and a hole 241 having a bolt hole 221. And a cylindrical portion 24 formed therein and a receiving portion 26 integrally formed with the cylindrical portion 24, and the receiving portion 26 has a hole 281 formed at its center as shown in FIG. In addition, the space 28 formed of a material having excellent elasticity is coupled to the reduction gear assembly in the hole 281 of the space 28 and the hole 241 of the tub flange 20 and the hole 16 of the reservoir 10. Simultaneously passing through the shaft 32 of the 30, the washing tank and the pulsator, which are accommodated and installed in the storage tank 10, are rotatably coupled to the shaft 32. In addition, the tub flange 20 is the coupling portion 22 is to be interviewed by each bolt hole (18,221) to match the bottom surface portion 14 of the reservoir 10, and is fixed by screw tightening of the bolt.

However, the tub flange 20 is formed while the receiving portion 26 formed in the cylindrical portion 24 maintains concentricity with the cylindrical portion 24, and the space 28 coupled therein includes the receiving portion ( Formed and coupled with a diameter smaller than the diameter of 26, the space 28 is eccentrically positioned in one direction due to vibration and shock during assembly of the reduction gear assembly 30, and piece wear occurs. There was a problem in that the reduction gear assembly 30 and the inner surface of the receiving portion 26 of the tub flange 20 directly hit the friction noise. Therefore, there was also a problem that the original function of the space 28 to reduce the mechanical noise is not performed.

Reference numeral 12 denotes a cylindrical portion.

The present invention has been made to solve the above problems, the object of which is to form a receiving portion in the cylindrical portion of the tub flange coupled to the bottom portion of the washing machine reservoir, the space corresponding to the upper body and the lower body integrally To provide a structure of the tub flange for the washing machine reservoir to prevent noise and vibration by the space during use of the assembly of the reduction gear assembly by forming a.

The present invention is a hole formed in the center of the cylindrical portion of the tubular flange is screwed to the bottom portion of the reservoir for storing the wash water to achieve the above object, and the shaft of the reduction gear assembly through the hole of the reservoir In the washing machine is passed through the pulsator is built on the shaft, the receiving jaw formed in the cylindrical portion of the tub flange in the receiving portion concentric with the hole and having a groove and a face, and the hole penetrated vertically; The tubular flange for the washing machine reservoir is formed by concentrically forming a space in which the upper body and the lower body are integrally formed at different diameters so that the upper body is inserted into the groove of the locking jaw, and the lower body is interviewed on the surface of the locking jaw. In providing.

1 is an exploded view showing the structure of a tub flange for a water tank of a general washing machine;

Figure 2a is a cross-sectional view showing a coupling configuration of a conventional tub flange,

Figure 2b is a perspective view of a space for a conventional tub flange,

Figure 3a is an exemplary cross-sectional view showing a coupling configuration of the tub flange according to the present invention,

3b is a perspective view of a space according to the present invention,

Figure 3c is a space perspective view of another embodiment according to the present invention.

* Explanation of symbols on the main parts of the drawings *

10,100 ... reservoir 12 ... cylinder

14 ... bottom 20,200 ... tough flange

22 ... mating part 24 ... cylindrical part

26 ... receptacle 30 ... reduction gear assembly

32 ... shaft 260 ... engaging jaw

28,280 ... Space 281 ... Hall

282 ... upper body 283 ... lower body

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

3A and 3B illustrate a structure of a tub flange for a washing machine reservoir tub according to the present invention. The structure of the tub flange for a washing machine reservoir is a reservoir 100 and a tub flange 200, a reduction gear assembly 300, and It consists of a space 280.

The reservoir 100 is formed of a cylindrical portion 12 and a bottom surface portion 14 so that the upper portion is opened, and a hole 16 vertically penetrating is formed in a central portion of the bottom portion 14, and a bolt is radially formed. A plurality of balls 18 are formed. The reduction gear assembly 300 is provided with a shaft 32 at the front end, and is connected to a driving motor (not shown) with a V-belt. The space 280 is formed with a hole 281 penetrating vertically in the center, and the upper body 282 and the lower body 283 are formed integrally with different diameters while forming concentric circles with the hole 281, The lower body 283 is formed to a larger diameter than the upper body 282. The upper body 282 and the lower body 282 is formed having a constant height, the material is molded using a rubber having excellent elasticity as the main material. 3B, a space 280 of another embodiment is shown. The space 280 is formed by dividing an upper body 282 and a lower body 283, respectively, and each of the upper and lower bodies 282 and 283. A hole 281 that vertically penetrates the center is formed, and is formed while having a predetermined height. A diameter of the hole 281 penetrating perpendicularly to the center of the space 280 is formed with the same diameter as the shaft located in the lower end of the shaft 32 of the reduction gear assembly 300.

The tub flange 200 is provided with a cylindrical portion 24 in which a hole 241 is vertically penetrated at the center thereof, and a radial coupling portion 22 is integrally formed around the cylindrical portion 24. In this coupling part 22, a bolt hole 221 is formed, and the bolt holes 221 are formed to correspond to the bolt hole 18 formed in the bottom portion 14 of the reservoir 100. In addition, the hole 241 is formed to correspond to the hole 16 formed in the bottom portion 14 of the reservoir (100). The accommodating part 26 provided in the cylindrical part 24 is provided with a locking jaw portion 260 provided with a groove and a surface concentrically, and is formed to be stepped by the locking jaw portion 260. The groove is formed to have a larger diameter than the hole 241, and the surface is formed to have a larger diameter than the groove, and the surface, the groove and the hole are formed to be stepped with each other.

The present invention is constructed so that the tub flange 200 is interviewed with the bottom portion 14 of the reservoir 100, the bolt hole 221 of the coupling portion 22 and the bolt hole 18 of the bottom portion 14 In addition, the holes 241 and 16 are matched to each other to be fixed by tightening with bolts. Then, the space 280 is coupled to the receiving portion 26 of the tub flange 200, but integrally with the receiving portion 26. The upper body 282 of the space 280 is inserted into the groove of the formed locking jaw 260, and the lower body 283 of the space 280 is interviewed on the surface. Subsequently, the reduction gear assembly 300 is inserted into the receiving portion 26 of the tub flange 200 to be coupled thereto, but the shaft 32 of the reduction gear assembly 300 preferentially holes 281 of the space 280. ) And the pulsator to pass through the hole 241 of the cylindrical portion 24 and the hole 16 of the bottom portion 14 of the reservoir 100, and the shaft 32 is formed in the space 280. The coupling is made by forcibly fitting the hole 281, and the other parts except the shaft 32 are interviewed with the bottom surface of the lower body 283 of the space 280 to complete the assembly. Accordingly, the space gear 280 is interviewed with the space 280 through the space where the reduction gear assembly 300 is interviewed on the inner surface of the accommodating part 26. This is prevented and is always uniformly interviewed with the upper end surface of the reduction gear assembly 300.

As described above, according to the present invention, the upper and lower bodies 282 and 283 of the space 280 are different from each other while forming the stepped latching jaw portion 260 in the receiving portion 26 of the tub flange 200. By forming a stepped in diameter to combine, it is to prevent the eccentricity is to prevent the friction noise.

Claims (3)

Holes 241 formed in the center portion of the cylindrical portion 24 of the tub flange 200 is screwed to the bottom portion 14 of the reservoir 100 for storing the wash water, and the hole of the reservoir 100 In the washing machine in which the shaft 32 of the reduction gear assembly 300 passes through 16, and a pulsator is built up on the shaft 32, In the receiving portion 26 inside the cylindrical portion 24 of the tub flange 200 to form a locking jaw portion 260 having a groove and a surface while forming a concentric circle with the hole 241, and a vertically penetrating hole ( 281 and a concentric circumference to form a space 280 in which the upper body 282 and the lower body 283 are integrated at different diameters so that the upper body 282 is inserted into the groove of the locking jaw portion 260. And, the lower body 283 is the structure of the tub flange for a washing machine reservoir characterized in that the interview surface on the engaging jaw portion 260. The structure of claim 1, wherein the upper body 282 and the lower body 283 of the space 280 are divided with each other. 3. The tub flange of a washing machine reservoir according to claim 1 or 2, wherein the hole (281) of the space (280) is formed with the same diameter as the shaft (32) of the reduction gear assembly (30).