KR20000014200A - Tub cover structure for automatic washing machine - Google Patents

Abstract

PURPOSE: A tub cover structure for a whole automatic washing machine is provided to equip a leakage prevention device of a tub cover for preventing the leakage of the washing water into the gap between the tub cover and an outer washing tub. CONSTITUTION: The leakage prevention device of the tub cover is equipped to prevent the leakage of the washing water supplied into an inner washing tub(104) by drawing up between the inner washing tub(104) and an outer washing tub(105) by the centrifugal force according to the rotation of high speed of the inner washing tub(104) connected in a washing machine(101), to the gap between the tub cover and the outer washing tub. The leakage prevention device of the tub cover is equipped an outer curved flap(115) formed in a flange(112) of the tub cover(111), and a first space unit(114) formed between the outer curved flap(115) and an inner curved flap(113) to insert by guiding the upper part of the outer washing tub(105) between the outer curved flap(115) and the inner curved flap(113).

Description

Tub cover structure of automatic washing machine

The present invention relates to a washing machine, in particular, by forming an outer bent piece on the flange of the tub cover and the space portion formed between the outer bent piece and the inner bent piece by combining the upper end of the laundry outer tub centrifugal force according to the high-speed rotation of the laundry inner tub It relates to a tub cover structure of a fully automatic washing machine to be prevented from being leaked through the tub cover and the laundry outgoing irradiated by being pumped between the washing tub and the laundry tub by the washing tub.

The structure of a washing machine for agitated washing by a conventional pulsator is shown in FIG.

The washing machine 1 and the laundry outer tank (2) that can store the wash water,

A washing tub (3) installed inside the washing tub (2) for washing laundry;

A pulsator (4) installed on the inner bottom surface of the washing tub (3) to impart mechanical rotational force to the laundry while performing forward and reverse rotation, and stir washing the laundry;

A washing shaft 6 coupled to the pulsator 4 to rotate the pulsator 4 forward and reverse,

A dewatering shaft 6-1 coupled to the washing tub 3 to rotate the washing tub 3 in one direction;

A clutch 7 for coupling or separating the washing shaft 6 and the dehydrating shaft 6-1;

A motor 8 connected to the clutch 7 and a pulley and a belt to transfer the rotational force to drive the clutch 7,

In order to discharge the washing water of the washing tub 2 to the outside, it is configured to have a drain valve 9 coupled to the washing tub 2.

Referring to the operation of the conventional washing machine as described above are as follows.

Put the laundry inside the washing tank (3) and press the start button, the water is supplied.

The wash water supplied to the washing tub 3 is filled with the washing tub 3 and the washing tub 2, and the water supply is stopped by the sensor when the predetermined level is reached.

At the same time as the water supply is stopped, the motor 8 rotates forward and backward while rotating the washing shaft 6 forward and reverse.

Accordingly, the pulsator 4 connected to the laundry shaft 6 washes the laundry while the forward and reverse rotations are performed.

In addition, when the washing is completed, the drainage valve 9 is opened while the drainage process is opened, and the washing water of the washing outer tub 2 is drained to the outside by opening the drainage valve 9.

In addition, when the drainage process is completed, a dehydration process for draining the wash water staying with the laundry in the washing tub 3 is followed.

In the dehydration process, the washing tub 6 and the pulsator 4 are integrally rotated in one direction at a high speed in a state in which the washing shaft 6 and the dehydration shaft 6-1 are coupled to the plurality of washing holes. Dehydration to the laundry outer tank (2) through (5) and the wash water dewatered to the washing outer tank (2) is drained to the outside through the drain valve (10).

In the conventional washing machine as described above, the washing of the pulsator is performed by the forward and reverse rotation of the pulsator, and thus, in order to satisfy the degree of washing, it is inevitably accompanied by damage or kinking.

In addition, by washing and rinsing with the washing tank 2 filled with water, the amount of use and detergent input are also increased, and the overall washing time is increased by increasing the supply and drainage time not directly related to washing. I had.

In particular, the tub cover 11 coupled to the laundry outer tub 2 is fastened by a plurality of screws 14 to the laundry outer tub 2, as shown in FIG. 12) and a small gap occurs between the upper surface of the washing tub (2).

In addition, the insertion piece 13 of the tub cover 11 is also in a state of being slightly opened without being completely adhered to the laundry outer tub 2 at the same time as the occurrence of the small gap.

Therefore, the phenomenon of leakage to the outside occurs through the gap between the insertion piece 13 and the laundry outer tub (2).

In addition, in order to prevent the leakage phenomenon, the gasket is attached to the upper end of the laundry outer tub 2 to prevent leakage, but the gasket attachment process is very difficult due to the large diameter of the laundry outer tub 2.

The purpose of the present invention for solving and complementing such a conventional problem,

Washing water tank and the washing outward irradiated to the upper side through the washing water re-supplied to the washing tank to prevent leakage between the tub cover and the laundry outer tub,

The tub cover and the laundry outer irradiation is provided to simplify the coupling of the sealing member and at the same time to provide a purpose to prevent the occurrence of vibration during washing by matching the roundness of the tub cover and the outer tub.

In order to achieve the above object, the present invention,

By forming an outer bent piece on the flange of the tub cover to form a first space portion that can be coupled to the upper end of the outer tub between the outer bent piece and the inner bent piece can achieve the object of the present invention,

After the coupling piece is installed downwardly on the flange of the tub cover, a second space may be formed on the upper side of the outer tub of the laundry so that the coupling piece can be inserted, thereby achieving the object of the present invention.

After forming the outer rib and the inner rib in the outer tub of the washing and the inner surface of the inner rib and the outer rib to be in close contact with the end of the flat portion and the insertion rib formed on the tub cover can achieve the object of the present invention.

1 is a cross-sectional view showing a conventional washing machine

Figure 2 is an enlarged cross-sectional view showing the main portion of the tub cover of the conventional washing machine

Figure 3 is an enlarged cross-sectional view of a first embodiment showing a tub cover of the present invention washing machine

Figure 4 is an enlarged cross-sectional view of a second embodiment showing a tub cover of the present invention washing machine

Figure 5 is an enlarged cross-sectional view of a third embodiment showing a tub cover of the present invention washing machine

<Code Description of Main Parts of Drawing>

105-Laundry tank 107-Second space

111-tub cover 112-flange

113-Inside Bending 114-Space 1

115-Outer bending piece 117-First sealing member

121-bonding piece 125-second sealing member

131-Outer rib 132-Inner rib

133-third space 141-plane

142-insertion rib 151-third sealing member

152-adhesive

The configuration of the present invention will be described in detail with reference to Figs.

Washing water supplied between the washing tub 104 and the washing tub 105 by centrifugal force according to the high speed rotation of the washing tub 104 coupled to the washing machine 101 is supplied to the tub tub 111. And a leakage preventing means of the tub cover for preventing leakage to the gap between the washing tub 105.

And, the leakage preventing means of the tub cover is an outer bending piece 115 formed on the flange 112 of the tub cover 111,

A first space portion formed between the outer bent piece 115 and the inner bent piece 113 so that the upper end of the laundry outer tub 105 is guided between the outer bent piece 115 and the inner bent piece 113 can be inserted. (114) was provided.

In addition, the first sealing member 117 is further provided to be inserted into the first space 114 to seal the first space 114.

And, the leakage preventing means of the tub cover is coupled to the protrusion 121 downwardly projected to the flange 112 of the tub cover 111,

The coupling piece 121 was provided as a second space portion 107 formed at the upper end of the laundry outer tub 105 to be guided and inserted.

In addition, a second sealing member 125 is further provided to be inserted into the second space 107 to seal the second space 107.

And, the leak prevention means of the tub cover is an outer rib 131 which is installed upward to the upper portion of the laundry outer tub 105,

An inner rib 132 formed shorter than an outer rib 131 installed upwardly at an upper end of the laundry outer tub 105 while maintaining a gap with the outer rib 131,

A flat portion 141 formed on the tub cover 111 to be sealed while being in close contact with the upper surface of the inner rib 132,

The inner side of the outer rib 131 is provided with an insertion rib 142 is formed on the tub cover 111 to be coupled while being in close contact with the end portion.

In addition, a third sealing member coupled between the inner rib 132 and the flat portion 141 to seal between the inner rib 132 of the laundry outer tub 105 and the flat portion 141 of the tub cover 111. (151) was provided.

The third sealing member 151 is attached to the inner surface of the flat portion 141 and the insertion rib 142 of the tub cover 111 by the adhesive 152.

In addition, the wash water passing through the inner rib 132 of the washing outer tub 105 and the flat portion 141 of the tub cover 111 and the inner rib 132 of the washing outer tub 105 may be made. A third space portion 133 is further provided between the outer rib 131 and the inner rib 132 of the laundry outer tub 105 to collect the wash water passing between the three sealing members 151 in case. .

Referring to the operation of the present invention as described above is as follows.

First, the laundry is put into the washing tank 104 of the washing machine 101 and pressing the start button is a water supply administration.

When the washing water of a predetermined level is supplied to the washing inner tank 104 and the washing outer tank 105 by the water supply administration, the water supply is stopped and the washing process is performed.

In addition, the washing process is performed by the rotation of the motor 102.

That is, the driving shaft 103 is rotated forward and reverse by the forward and reverse rotation of the motor 102, and the washing inner tub 104 is rotated forward and reverse by the forward and reverse rotation of the drive shaft 103.

Therefore, the laundry of the washing tub 104 is washed by the flow of washing water by the forward and reverse rotation of the washing tub 104.

At this time, in order to perform the centrifugal washing, the rotation speed of the motor 102 should be increased.

That is, when the rotation speed of the motor 102 is increased, the rotation speed of the drive shaft 103 and the washing inner tub 104 is also increased, thereby increasing the centrifugal force.

Therefore, the centrifugal force of the laundry of the washing tub 104 is in a state of being in close contact with the inner wall surface of the washing tub 104 and the wash water is transmitted between the ol and the laundry.

At this time, since the stains on the laundry are washed by the permeable washing water, the laundry is more clean.

In addition, the wash water passing through the laundry between the ol and the ol is to be drained to the washing tub 105 through the washing hole of the washing tub 104, the washing water drained to the washing tub 105 is washed Due to the large centrifugal force generated by the high speed rotation of the inner tub 104, it rises upward along the washing tub 104 and the outer tub 105.

Of course, the wash water already supplied to the bottom surface of the washing tub 105 also rises upward between the washing tub 104 and the washing tub 105 by the centrifugal force.

Tub cover 111 of the present invention coupled to the laundry outer tank 105 to supply the washing water to be raised as described above to the washing inner tank 104 is the inner bent piece 113 and the outer bent piece (112) of the flange (112) The first space portion 114 formed between the 115 can be coupled to guide the upper end of the laundry outer tub 105 as shown in Figure 3 so that the roundness of the tub cover 11 and the outer tub 105 can be matched. It is possible to prevent the occurrence of vibration, etc. when the assembly is completed.

In addition, simply insert the first sealing member 117 into the first space portion 114 of the tub cover 111, and then simply insert the first sealing member 117 into the upper portion of the laundry outer tub 105, so assembling is completed, so that easy assembly can be obtained. Excellent sealing force can be obtained.

On the other hand, Figure 4 is a view showing a second embodiment of the present invention, the coupling piece 121 formed in the flange 112 of the tub cover 111 to the second space portion 107 formed in the laundry outer tub 105 Since the coupling can be guided, the roundness of the tub cover 111 and the washing tub 105 can be matched, thereby preventing the occurrence of vibration and the like when the assembly is completed.

In addition, simply insert the second sealing member 125 into the second space portion 107 of the tub cover 111 and then simply inserted into the upper portion of the laundry outer tub 105, so assembling is completed, so that easy assembly can be obtained. Excellent sealing force can be obtained.

On the other hand, Figure 5 is a view showing a third embodiment of the present invention, when the tub cover 111 is coupled to the laundry outer tub 105, the end of the insertion rib 142 formed on the tub cover 111 is washed outer tub 105 By being closely coupled to the outer rib 131 of the) it is possible to match the roundness of the tub cover 111 and the outer tub 105 to prevent the occurrence of vibration and the like when the assembly is completed.

In addition, by coupling the third sealing rib 151 between the inner rib 132 of the washing outer tub 105 and the flat portion 141 of the tub cover 111 between the tub cover 111 and the washing outer tub 105. The wash water can be prevented from leaking.

In particular, since the third sealing rib 151 is attached to the inner surface of the planar portion 141 and the insertion rib 142 of the tub cover 111 by the adhesive 152 to maintain a firm attachment state.

In addition, even if the attachment state of the third sealing member 151 is slightly curved without forming a garden, since the upper surface of the inner rib 132 of the washing tub 105 is sufficiently covered, the washing water may be sufficiently prevented from leaking.

In addition, a third space portion formed between the inner rib 132 and the outer rib 131 even if the wash water passes between the third sealing member 151 and the inner rib 132 of the laundry outer tub 105 in case. By collecting the second wash water secondary to (133) can be more sure prevention of rain.

The wash water collected in the third space 133 is automatically discharged into an overflow hose (not shown) connected to the drain hose.

In this way, the present invention, by forming an outer bent piece on the flange of the tub cover to form a first space portion that can be coupled to the upper end of the outer tub between the outer bent piece and the inner bent piece,

After installing the coupling piece downwardly on the flange of the tub cover, the seeker or the second space is formed in the upper side of the outer tub so that the coupling piece can be inserted,

By forming an outer rib and an inner rib in the outer tub of the laundry, the inner surface of the inner rib and the outer rib to be in close contact with the end of the flat portion and the insertion rib formed in the tub cover,

To prevent the washing water from being reflowed between the tub cover and the laundry outer tub after being raised to the upper side through the washing inner tub and the outer tub for washing, and to facilitate the coupling of the sealing member combined with the tub cover and the outer tub for washing. At the same time, by matching the roundness of the tub cover and the outer tub of washing has a useful effect that can prevent the occurrence of vibration during washing.

Claims (9)

Prevention of leakage of the tub cover to prevent the wash water supplied to the washing tank from leaking into the gap between the tub cover and the washing tub by the centrifugal force caused by the high speed rotation of the washing tub coupled to the washing machine. Tub cover structure of a fully automatic washing machine characterized in that it comprises a means. The method of claim 1, Leakage preventing means of the tub cover is an outer bending piece formed on the flange of the tub cover, Tub cover structure of the automatic washing machine, characterized in that provided as a first space portion formed between the outer bending piece and the inner bending piece so that the upper end of the laundry outer tub is inserted between the outer bending piece and the inner bending piece. The method of claim 2, Tub cover structure of a full automatic washing machine, characterized in that it further comprises a first sealing member inserted into the first space for sealing the first space. The method of claim 1, Leakage preventing means of the tub cover is coupled to the protrusion projecting downward on the flange of the tub cover, Tub cover structure of a fully automatic washing machine, characterized in that provided with a second space formed in the upper end portion of the laundry outer tub so that the coupling piece can be guided. The method of claim 4, wherein Tub cover structure of a full-automatic washing machine further comprising a second sealing member inserted into the second space for sealing the second space. The method of claim 1, Leakage preventing means of the tub cover is an outer rib that is installed upward to the upper end of the washing tub; An inner rib formed shorter than an outer rib installed upwardly at the upper end of the washing tub while maintaining a gap with the outer rib; A flat portion formed on the tub cover to seal the upper surface of the inner rib while being sealed; Tub cover structure of a full-automatic washing machine, characterized in that provided with an insertion rib formed in the tub cover for sealing while being coupled close to the inner end of the outer rib. The method of claim 6, And a third sealing member coupled between the inner rib and the flat part to seal between the inner rib of the laundry outer tub and the flat part of the tub cover. The method of claim 7, wherein The third sealing member is a tub cover structure of a full automatic washing machine, characterized in that attached to the flat portion of the tub cover and the inner surface of the insertion rib by an adhesive. The method according to claim 6 or 7, Washing water tank to collect the wash water passing between the inner ribs of the washing outer tub and the flat portion of the tub cover, and the wash water passing between the inner ribs of the washing outer tank and the third sealing member in case. A tub cover structure of a fully automatic washing machine, further comprising a third space portion between the outer rib and the inner rib.