KR20070001618A - Drum type washing machine - Google Patents

Abstract

A drum-type washing machine is provided to prevent impurities from being infiltrated between the tub and the drum, and to preclude the tub from being damaged by mounting the impurity blocking unit between the outer peripheral surface of the drum and the inner peripheral surface of the tub. A drum-type washing machine comprises: a cabinet formed with a laundry inlet hole part; a door for opening and closing the laundry inlet hole part; a tub(54) installed in the cabinet and formed with an opened hole part of a tub; a drum rotatably placed in the tub; a gasket(80) for sealing the interval between the door and the opened hole part of the tub; and an impurity blocking unit placed between the outer peripheral surface of the drum and the inner peripheral surface of the tub so as to block the infiltration of the impurities between the drum and the tub. The impurity blocking unit is a blocking rib(92).

Description

Drum Washing Machine {Drum type washing machine}

1 is a cross-sectional view showing a drum washing machine according to the present invention;

FIG. 2 is an enlarged cross-sectional view of part “A” in FIG. 1;

<Explanation of symbols on main parts of the drawings>

50: cabinet 51: laundry access hole

52: door 53: tub opening hole

54: Tub 55: Drum

56: motor 57: drum opening hole

58: curling unit 60: water supply device

61: water supply valve 62: water supply hose

63: detergent container 70: drainage

71: drain hose 72: pump

80: gasket 80a: cabinet fitting

80b: Tub fitting 80c: Folded portion

80d: blocking rib

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum washing machine, and more particularly, to a drum washing machine that can block foreign matter from penetrating between an outer circumferential surface of a drum and an inner circumferential surface of a tub.

In general, a washing machine is a device for washing laundry by applying an appropriate detergent and mechanical force to the laundry, in particular, the drum washing machine is rotated by the driving force of the motor by the detergent and washing water and laundry in the drum installed horizontally The laundry is washed by the impact of falling up and down, there is little twisting and damage to the laundry, and knocking and rubbing has a washing effect.

The drum washing machine according to the related art has a casing having a laundry access hole, a door installed at the front of the casing to open and close the laundry access hole, a tub installed at the inside of the casing and having an opening at the front thereof, and the tub. And a drum installed inside the tank, a motor for rotating the drum, a water supply device for supplying wash water to the tub, and a drainage device for draining the wash water in the tub.

A gasket is provided between the door and the opening of the tub to mitigate an impact caused by the rotation of the drum and to seal the door and the tub.

Referring to the operation of the drum washing machine according to the prior art configured as described above are as follows.

First, after opening the door and injecting laundry into the drum, when detergent and wash water are supplied through the water supply device, the drum is rotated while the motor is driven.

When the drum is rotated, the laundry is lifted from the inside of the drum and falls, so that the laundry administration is performed.

When the washing operation is completed, the motor stops and the contaminated washing water in the tub is drained to the outside through the drainage device.

Thereafter, a rinsing stroke is performed several times to rinse the foam remaining in the laundry. After the new washing water is supplied through the water supply device and the drum is rotated, the foam of the laundry is rinsed. It is drained to the outside through the drainage device.

In addition, when the drum is rotated at a high speed, a dehydration stroke is performed to remove the laundry. When the drum is rotated at a high speed, the laundry is drained through the through hole of the drum while being centrifugally dehydrated and collected in the tub. Drained.

However, the drum washing machine according to the related art has a problem in that foreign matter penetrates between the tub and the drum, causing noise or breaking the tub by hitting the inner circumferential surface of the tub.

In addition, there is a problem that the foreign matter penetrates into the drainage device during drainage may cause clogging of the drainage device.

The present invention has been made in order to solve the problems of the prior art, it is an object to provide a drum washing machine that can block the foreign matter penetrated between the tub and the drum, to prevent noise and improve the durability of the tub. .

The drum washing machine according to the present invention for solving the above problems, a cabinet in which laundry access holes are formed, a door for opening and closing the laundry access holes, a tub installed inside the cabinet and having a tub opening hole, and an inside of the tub. A foreign body provided between the drum rotatably disposed in the gasket, a gasket sealing between the door and the tub opening hole, and an outer circumferential surface of the drum and an inner circumferential surface of the tub to block foreign matter from penetrating between the drum and the tub. Characterized in that it comprises a blocking means.

The foreign matter blocking means is characterized in that the blocking rib protruding toward the outer peripheral surface of the drum to block between the outer peripheral surface of the drum and the inner peripheral surface of the tub in the gasket.

The gasket may have a tub fitting portion formed to surround the tub opening hole, and the blocking rib may protrude from the tip of the tub fitting portion toward the outer circumferential surface of the drum.

The drum is formed so that the laundry entrance to the laundry entering and exits toward the front, the blocking rib is a cylindrical portion formed so as to be spaced apart from the laundry exit in a radial direction by a predetermined distance, and the ring protruding toward the laundry entrance from the cylindrical portion It is characterized by consisting of wealth.

The drum may form a curling part in which an end of a laundry entrance through which laundry is entered is curled outwardly, and the blocking rib is bent at the rear of the curling part so as not to interfere with the curling part.

In addition, the drum washing machine according to the present invention is provided with a cabinet in which laundry access holes are formed, a door for opening and closing the laundry access holes, a tub installed inside the cabinet, a tub formed with a tub opening hole, and installed inside the tub. A drum having a drum opening hole formed therein, a gasket sealing between the door and the tub opening hole, and a foreign matter blocking means for blocking foreign matter from penetrating between the drum and the tub, wherein the foreign matter blocking means is provided with the gasket. A first blocking rib protruding in a radial direction so as to be located in front of the drum opening hole in the second opening rib, and a second blocking rib protruding toward the outer circumferential surface of the drum so as to be located between the outer circumferential surface of the drum and the inner circumferential surface of the tub in the gasket. It is characterized by.

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

1 is a cross-sectional view showing a drum washing machine according to the present invention, Figure 2 is an enlarged cross-sectional view "A" portion in FIG.

1 and 2, the drum washing machine according to the present invention has a cabinet 50 having an appearance and a laundry access hole 51, and a door 52 for opening and closing the laundry access hole 51; And a tub 54 installed inside the cabinet 50 and having a tub opening hole 53, a drum 55 rotatably disposed inside the tub 54, and the drum 55. In addition, the motor 56 for driving rotation, the water supply device 60 for supplying detergent or wash water to the inside of the tub 54, and the wash water in the tub 54 to the outside of the cabinet 50 It is configured to include a drainage device 70 for draining.

The tub opening hole 53 is positioned in communication with the laundry access hole 51, and the motor 56 is mounted on the rear surface of the tub 54.

The drum 55 is formed such that the laundry entrance and exit 58 having the drum opening hole 57 communicating with the tub opening hole 53 and having the laundry in and out protrudes forward.

The end of the laundry entrance 58 forms a curling portion 58a that is curled outward to prevent the laundry from being damaged when entering or exiting the laundry.

A lift 59 is mounted on an inner circumferential surface of the drum 55 so that the laundry accommodated in the drum 55 can be lifted upward and dropped by its own weight.

The water supply device 60 is connected to an external hose, the water supply valve 61 for intermitting the wash water being supplied, the water supply hose 62 for supplying the wash water passed through the water supply valve 61, and the water supply hose It consists of a detergent container (63) installed in the cabinet (50) so that the wash water guided to 62 can be mixed with the detergent.

The drainage device 70 includes a drain hose 71 for draining the wash water drained from the tub 54 to the outside, and a pump 72 for pumping or intermitting the wash water drained to the drain hose 71. It consists of a drain valve.

On the other hand, a gasket 80 is provided between the door 52 and the tub opening hole 53 to seal between the door 52 and the tub opening hole 53 to prevent leakage of laundry and washing water. .

The gasket 80 is formed to be stretchable in the front-rear direction between the laundry access hole 51 and the tub opening hole 53.

One side of the gasket 80 is fitted into the laundry access hole 51, and the other side of the gasket 80 is fitted into the tub opening hole 53.

On the other hand, the drum washing machine is configured to include a foreign matter blocking means for blocking foreign matter from penetrating between the outer peripheral surface of the drum 55 and the inner peripheral surface of the tub (54).

The foreign matter blocking means is a blocking rib protruding from the gasket 80, the blocking rib being formed on the front of the drum opening hole 57, the first blocking rib 91 and the drum opening hole 57 ) And a second blocking rib 92 formed to be positioned at the rear of the.

That is, the gasket 80 surrounds the cabinet fitting portion 80a fitted to surround the laundry access hole 51 of the cabinet 50 and the tub opening hole 53 of the tub 54. A tub fitting portion 80b to be fitted, and a folded portion 80c bent between the cabinet fitting portion 80a and the tub fitting portion 80b, and the first and second blocking ribs 91 and 92 are formed. Protrudes from the tub fitting portion 80b toward the outer circumferential surface of the drum 55.

The first blocking rib 91 is formed to protrude radially from the tub fitting portion 80b, and the second blocking rib 92 is formed at the tip of the tub fitting portion 80b. It is formed to protrude toward the outer circumferential surface.

In addition, the second blocking rib 92 is formed by bending at the rear of the curling portion 58a of the drum 55 so as not to interfere with the curling portion 58a of the drum 55. A cylindrical portion 92a formed to be spaced apart at a predetermined interval in the radial direction at 58, and a ring portion 92b protruding from the cylindrical portion 92a toward the laundry inlet 58.

That is, it is preferable that the second blocking ribs 92 have a cross-sectional shape of a '' '' shape.

Looking at the operation of the present invention configured as described above are as follows.

First, after the laundry is put into the drum 55 and the door 52 is closed and the drum washing machine is operated, detergent and washing water are supplied to the drum 55 through the water supply device 60. The laundry is soaked in the wash water.

Thereafter, when the motor 56 is driven to rotate the drum 55, the laundry accommodated in the drum 55 is lifted upward by the lift 59 and then dropped by its own weight, and the detergent and the wash water. Due to the action of the laundry will fall on the time.

After the washing operation is completed, the contaminated washing water in the tub 54 is drained to the outside through the drainage device 70.

And, a rinsing stroke is performed several times to rinse the remaining foam in the laundry, clean washing water is supplied through the water supply device 60 and the drum is rotated while the foam is rinsed, the contamination including foam Washed water is drained to the outside through the drainage (70).

Thereafter, a dehydration stroke is performed to remove water from the laundry. When the drum 55 is rotated at a high speed, the water from the laundry is centrifugally dehydrated, collected in the tub 54 and then externally discharged through the drainage device 70. To be drained.

In the washing, rinsing, and dehydration, the foreign matter is first blocked by the first blocking rib 91, and the foreign material that is not blocked by the first blocking rib 91 is removed from the second blocking rib 92. It is blocked to prevent penetration between the inner circumferential surface of the tub 54 and the outer circumferential surface of the drum 55.

Drum washing machine according to the present invention configured as described above is installed by the foreign matter blocking means for blocking the foreign matter penetrates between the outer peripheral surface of the drum and the inner peripheral surface of the tub, the noise generated by the foreign matter penetrating the hitting the tub and drum It can be prevented and prevent damage to the tub, as well as to prevent clogging of the drainage due to foreign matter.

In addition, the foreign matter blocking means is the first and second blocking ribs protruding from the gasket, the second blocking rib is formed by bending at the rear of the curling portion of the drum, thereby avoiding interference with the curling portion of the drum. There is this.

Claims (6)

A cabinet having laundry access holes formed therein; A door for opening and closing the laundry access hole; A tub installed inside the cabinet and having a tub opening hole; A drum rotatably disposed inside the tub; A gasket sealing between the door and the tub opening hole; And a foreign material blocking means provided between the outer circumferential surface of the drum and the inner circumferential surface of the tub to block foreign matter from penetrating between the drum and the tub. The method according to claim 1, The foreign matter blocking means is a drum washing machine, characterized in that the blocking rib protruding toward the outer peripheral surface of the drum to block between the outer peripheral surface of the drum and the inner peripheral surface of the tub in the gasket. The method according to claim 2, The gasket is tub fitting portion is formed so as to surround the tub opening hole portion, The blocking rib is a drum washing machine, characterized in that protruding toward the outer peripheral surface of the drum from the tip of the tub fitting. The method according to claim 2, The drum is formed so that the laundry entrance to the laundry entering and exiting toward the front, The blocking rib is a drum washing machine, characterized in that consisting of a cylindrical portion formed radially spaced apart from the laundry inlet and a ring portion protruding from the cylindrical portion toward the laundry inlet. The method according to claim 2, The drum forms a curling portion in which an end of a laundry entrance through which laundry is entered is rolled outwards, The blocking rib is formed by bending the rear of the curling unit so as not to interfere with the curling unit. A cabinet having laundry access holes formed therein; A door for opening and closing the laundry access hole; A tub installed inside the cabinet and having a tub opening hole; A drum provided inside the tub and having a drum opening hole; A gasket sealing between the door and the tub opening hole; It is configured to include a foreign matter blocking means for blocking the foreign matter penetrates between the drum and the tub, The foreign matter blocking means is directed toward the outer circumferential surface of the drum so as to be located between the outer circumferential surface of the drum and the inner circumferential surface of the tub so as to be located in front of the drum opening hole in the gasket. Drum washing machine, characterized in that consisting of a protruding second blocking rib.

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