KR100187239B1 - Drum of a drum washing machine - Google Patents

Abstract

The present invention relates to an anti-vibration device of a drum washing machine, wherein a tub is provided in a washing machine main body, and the drum is provided with a drum which rotates at a high speed during washing and dehydration. And a front plate having a through hole formed to be bound to one side of the cylindrical body to accommodate laundry, a rear plate bound to the other side of the cylindrical body, and first and second receiving portions formed on the front plate. The front cover member having the first and second accommodating portions formed to form the first and second accommodating spaces and the first and second accommodating portions formed on the rear plate to correspond to the first and second accommodating spaces. And a rear cover member in which the first and second accommodating parts are formed in a parallel manner, and vibration preventing means installed in the first and second accommodating spaces to prevent vibration due to the high speed rotation of the cylindrical body. It features.

The present invention configured as described above is an excellent invention that vibration and noise due to imbalance due to the high speed rotation of the drum can be prevented by the vibration preventing means.

Description

Drum of Washing Machine

1 is a schematic perspective view showing a drum of a conventional drum washing machine,

2 is a longitudinal sectional view of the drum washing machine equipped with the vibration preventing device of the present invention,

3 is an enlarged cross-sectional view showing a portion A of FIG. 2 in detail;

4 is an enlarged cross-sectional view of a portion B of FIG. 2 in detail.

* Explanation of symbols for main parts of the drawings

11,50: drum 51: cylindrical body

52, 53: front panel, rear panel 52a, 52b: first and second accommodation parts

53a, 53b: first and second receptacles 54, 55: front and rear cover members

54a, 54b: first and second receptacles 55a, 55b: first and second receptacles

56: anti-vibration means 56a, 56b: ball member

56c: fluid

The present invention relates to a drum washing machine in which washing, rinsing, dehydration, and drying are automatically performed by a drop caused by the rotation of the drum. In particular, the present invention relates to vibration and imbalance caused by high-speed rotation of the drum. It relates to a drum of a drum washing machine that prevents and balances.

In general, as shown in FIG. 1, a conventional drum washing machine is provided with a detergent container 3 and an operation unit 5 on the front upper part of the washing machine main body 1, and is not shown on the rear side of the main body 1. Hot and cold water supply valves (7) and (8) are installed to supply hot and cold water in connection with water supply means.

A tub 9 is installed in the main body 1, and a drum 11 is installed in the tub 9 so as to perform washing and dehydration by rotating at high speed simultaneously with the application of power from a power supply means (not shown). It is.

A plate 15 is attached to the front of the tub 9 so that the door 13 can be opened and closed when the laundry is put into and taken out of the drum 11, and the laundry is dried on the top of the plate 15. An air vent 17 is installed to introduce dry air during the stroke, and a counterweight 19 is provided on the front surface of the tub 9 to prevent vibration generated during high-speed rotation of the drum 11 during washing and dehydration. It is installed.

In addition, a high heat generated in the drying heater 21 of the drying heater 21 for drying the air introduced from the outside into the air vent 17 blows through the diaphragm 15 to the drum 11. Fan motor 23 is installed to operate to cause the air convection phenomenon, the outer circumferential surface of the tub (9) is cold water to condense the dry air by the high temperature of the drying heater 21 introduced into the tub (9) Condensing hose 25 for supplying the is connected.

In addition, the lower side of the tub (9) is provided with a power transmission means 27 for forward and reverse rotation of the drum (11), the drain pump connected to the drain hose not shown in the lower rear of the washing machine body (1) (29) is installed, the front lower portion of the main body (1) prevents the drainage pump 29 is blocked by washing residues such as residual water and dirt flowing out of the tub (9) and at the same time due to power failure When the operation of the drain pump 29 is impossible, the filter 31 for draining the wash water is installed.

The drum 11 has a plurality of through-holes 11a formed on its entire surface to allow laundry to roll in the drum 11 and to allow the wash water in the tub 9 to flow into the drum 11. In the drum 11, the water flow adjusting means 11b, which functions as a laundry bat by dropping the laundry by dropping each other at regular intervals by 120 °, is bound by a fastening means (not shown).

However, the conventional drum washing machine configured as described above has a difficulty in moving the washing machine due to excessive weight of the counterweight 19, which is an anti-vibration device, and vibrating noise due to high speed rotation of the drum 11 during washing and dehydration drying. Had a problem.

Accordingly, the present invention has been made in order to solve the above problems, and provides a drum of the drum washing machine to improve the noise due to vibration and vibration caused by the high-speed rotation of the drum during washing and dehydration drying and to reduce the weight of the washing machine Its purpose is to.

In order to achieve the above object, the present invention is provided with a front plate formed with a through hole for storing laundry on one side of the cylindrical body so as to rotate at a high speed during washing and dehydration in a tub installed in the main body of the washing machine. A drum of a drum washing machine provided with a back plate, comprising: a front cover member provided correspondingly to the first and second accommodating parts formed on the front plate of the drum and having first and second accommodating parts; A rear cover member having a first cover and a second receiver configured to correspond to the receiver and having a first and a second accommodation space, and to prevent vibration due to the high-speed rotation of the cylindrical body in the first and second accommodation spaces; It is characterized by having a vibration preventing means installed to.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring an accompanying drawing.

FIG. 2 is a longitudinal sectional view of the drum washing machine provided with the vibration preventing device of the present invention. FIG. 3 is a sectional view showing part A of FIG. 2 in detail, and FIG. 4 is a sectional view showing part B of FIG.

In Fig. 1, the same parts as in the conventional construction are denoted by the same reference numerals and detailed description thereof will be omitted.

The washing machine is provided with a tub (9) therein, the tub (9) in the drum of the drum washing machine to prevent the vibration generated during the high-speed rotation of the drum (50) installed therein, the second As shown in the figure, a shaft 33 is formed at one side of the drum 50, and a housing bearing 35 formed integrally with the tub 9 is installed at the outer circumferential surface of the shaft 33. At the end of the shaft (33), the drum (50) transmits power so that the drum (50) rotates forward and backward in the tub (9) by the power transmitted by a V-belt (not shown) from a power transmission means (not shown). The pulley 37 is provided.

The bearing 39 and the oil seal 41 are inserted into the inner circumferential surface of the housing bearing 35 so that the shaft 33 rotates freely forward and backward, and the temperature control of the operation part (not shown) is provided in the lower side of the tub 9. The washing heater 43 for raising the temperature of the water supplied during the washing operation by the selection is provided.

The drum 50 has a cylindrical body 51, a front plate 52 having a through hole 52c formed to be bound to one side of the cylindrical body 51 to accommodate laundry, and the cylindrical body 51. The first and second accommodation spaces 62 and 63 installed to correspond to the other side of the rear plate 53 and the first and second accommodation portions 52a and 52b formed on the front plate 52. The first and second accommodating parts 53a and 53b of the front cover member 54 having the first and second accommodating parts 54a and 54b formed to correspond to each other are installed correspondingly. And a back cover member 55 having first and second accommodation portions 55a and 55b to form first and second accommodation spaces 62 and 63, and the first and second accommodation spaces 62. It consists of a vibration preventing means (56) installed in the (63) to prevent vibration due to the high-speed rotation of the cylindrical body (51).

The vibration preventing means 56 includes a plurality of ball members 56a and 56b respectively flowing in the first and second accommodation spaces 62 and 63, and the first and second accommodation spaces 62. It consists of fluid 56c, such as oil, which is filled in the space between the said ball members 56a, 56b so that the noise by the flow of the said ball members 56a, 56b in 63 may be prevented.

The fluid 56c is formed in the first and second accommodation spaces 62 and 63 in the first and second accommodation portions 54a and 54b and 55a and 55b of the front and rear cover members 54 and 55. Injection holes 54c and 55c are respectively provided.

At this time, the front and rear plates 52 and 53 are coupled by the seaming operation folded and rolled together with the cylindrical body 51, and the injection hole 54c of the front and rear cover members 54 and 55. (C) 55c is sealed by welding to prevent leakage of the fluid 56c after injecting the fluid 56c through the inlets 54c and 55c.

Then, the molding height h1 of the first and second accommodation parts 52a, 52b, 53a, 53b formed on the front plate 52 and the rear plate 53 and the front and rear cover members 54 ( The molding height h2 of the first and second accommodating portions 54a and 55b and 55a and 55b of the 55 is determined by the ball members 56a and 56b of the vibration preventing means 56 being accommodated by the first and second accommodating portions. The forming heights h1 and h2 of one of the front and rear plates 52 and 53 and the front and rear cover members are disposed so as not to interfere with the welding slug W in the spaces 62 and 63. (54) and (55) are molded at a height not less than 1/2 of the forming width (H) at the same time as the height of the radius of the ball members (56a, 56b).

In addition, the radius of the bent portion (R1) formed in the first receiving portion (54a, 55a) of the front and rear cover members 54, 55, the bent portion of the first and second receiving portion (54b, 55b) of the outside ( The drum 50 is more effectively balanced by molding larger than the radius of R2 to vary the flow rates of the ball members 56a and 56b.

The operation and effect of the drum of the drum washing machine according to the present invention configured as described above will be described next.

First, when the switch of the operation unit (not shown) installed in the front of the washing machine is operated, power is applied to the power transmission means (not shown) installed in the lower portion of the tub 9 to generate power. At this time, the pulley 37 is rotated according to the operation of the power transmission means, and the rotational force of the pulley 37 is transmitted to the shaft 33 inserted into the center of the housing bearing 35 and the shaft 33 ), The drum 50, which is bound thereto, rotates. The washing and rinsing, dehydration, and drying of the laundry in the drum 50 are performed by the forward and reverse rotation of the drum 50.

At this time, the front and rear plates 52 and 53 and the front and rear cover members 54 and 55 which are integrally shimmed to both sides of the cylindrical body 51 of the drum 50 are formed. The plurality of ball members 56a and 56b and the fluid 56c of the anti-vibration means 56 installed in the first and second accommodating spaces 62 and 63 flow therein to rotate the drum 50. It acts to prevent vibration and noise.

As described above, according to the present invention, the first and second accommodation portions formed by binding the first and second accommodation portions of the front and rear cover members to correspond to the first and second accommodation portions formed on the front and rear plates of the drum. A space is formed, and the first and second accommodation spaces are filled with a ball member and a fluid, which are anti-vibration means. There is a very good effect that vibration and noise can be prevented by the vibration preventing means.

Claims (4)

In the drum of the drum washing machine provided with a through-hole is formed in the tub installed in the main body of the washing machine so that the laundry can be stored at one side of the cylindrical body to rotate at a high speed during washing and dehydration, and the other side is provided with a rear plate. A front cover member formed to correspond to the first and second accommodating parts formed on the front plate of the drum to form the first and second accommodating spaces, and first and second formed on the back plate. A rear cover member having a first and second accommodation portion formed to correspond to the accommodation portion to form the first and second accommodation spaces, and to prevent vibration due to the high-speed rotation of the cylindrical body in the first and second accommodation spaces. Drum of washing machine drum characterized in that it has a vibration preventing means installed. The method of claim 1, wherein the anti-vibration means is a plurality of ball members flowing in the first and second accommodation space, and to prevent noise caused by the flow of the ball member in the first and second accommodation space The drum of the drum washing machine, characterized in that made of a fluid such as oil filled in the space between the ball member. According to claim 1, wherein the molding height of the molding height of the first and second receiving portion of the first and second receiving portion of the front and rear plates and the molding height of the front and rear plates of the front and rear A drum of a drum washing machine, characterized in that formed at a height of 1/2 or more of the forming width when the plate and the front and rear cover members are combined. The drum washing machine according to claim 1, wherein a radius of the bent portion formed in the first accommodating portion of the front and rear cover members is larger than a radius of the bent portion of the second accommodating portion.