KR101010692B1 - Drum washing machine - Google Patents

Abstract

The present invention relates to a drum washing machine which can be directly sprayed into the laundry to be quickly wetted in the laundry to reduce the washing time, and improve the washing performance, the tub having a laundry access hole formed in the front; A drum rotatably positioned inside the tub and having a laundry access hole formed in a front portion thereof; A laundry rod mounted on a rear portion of the drum to protrude into the drum, and having a water supply passage formed to supply washing water to the inside of the drum; A motor having a hollow shaft connected to the rear portion of the drum to communicate with the water supply passage of the laundry rod to rotate the drum; It characterized in that it comprises a water supply device for supplying the wash water to the inside of the shaft.

Drum Washer, Tub, Drum, Laundry Rod, Motor, Shaft, Watering Equipment

Description

Drum washing machine

1 is a partially cutaway perspective view of a first embodiment of a drum washing machine according to the present invention;

2 is a cross-sectional view of a first embodiment of a drum washing machine according to the present invention;

3 is a sectional view of a drum washing machine according to a second embodiment of the present invention;

4 is a partially cutaway perspective view of a third embodiment of a drum washing machine according to the present invention;

5 is a cross-sectional view of a third embodiment of a drum washing machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

2: casing 10: cabinet cover

12: door 16: door frame

18: door glass 22: tub

30: drum 32: laundry entrance hall

34: through-hole 36: lift

38: laundry rod 38a: water supply passage

38b: water supply hole 38c: opening hole

39a: tightening bolt 39b: plate part

39d: seal 40: motor

50: water supply 52: water supply valve                 

54: first water supply hose 56: detergent container

58: second feed hose 58a: feed nozzle

59: holder 60; Drainage

62: drainage bellows 64: drainage pump

66: drain hose 101: rotating shaft

102: motor 104: drive pulley

106: driven pulley 108: pulley

110: first water supply device 112: water supply valve

114: water supply hose 116: detergent container

118: water supply bellows 120: second water supply device

122: drainage bellows 124: circulation pump

126: circulation hose

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 having a laundry rod mounted on a drum and capable of supplying washing water through the laundry rod.

In general, a washing machine is a device that removes contaminants from laundry by using a detergent and washing water, and is classified into an agitator type, a pulsator type, and a drum type washing machine.

The stirring type washes by rotating the laundry rod rising to the left and right in the center of the washing tank. The vortex type washes by using the friction force between the water flow and the laundry generated by rotating the disk-shaped pulsator formed at the lower part of the washing tank to the left and right. Put water, detergent and laundry into the drum of the projecting lift of the drum and wash the drum by rotating it.

The drum washing machine is equipped with a tub in which washing water is contained in the casing, a drum in which laundry is accommodated is disposed in the tub, and a motor for rotating the drum is mounted in the tub, and washing water is provided in the tub. A water supply device for supplying water and a drainage device for draining the washing water to the outside are connected to the tub.

The drum washing machine is supplied with washing water to the inside of the tub through the water supply device so as to be immersed in the inner lower portion of the tub, and introduced into the drum to wet the laundry, when the drum is rotated in the tub, the laundry is the drum It is pumped up to the inner upper portion of the drum and falls to the inner lower portion of the drum to wash the laundry by the free fall.

However, in the drum washing machine according to the prior art, since the washing water supplied through the water supply device is immersed in the inner lower portion of the tub and is introduced into the drum and wetted with the laundry, the time for washing the water to the laundry is delayed, and the whole laundry is delayed. There is a limit to evenly soaking.

In addition, when the amount of laundry introduced into the drum is large, there is a problem in that the effect of dropping the laundry is insignificant and the friction of the laundry is reduced, thereby reducing the washing performance.

The present invention has been made in order to solve the problems of the prior art, washing water can be directly sprayed to the laundry can be quickly wetted to the laundry to reduce the washing time, to provide a drum washing machine that can improve the washing performance Its purpose is to.

Drum washing machine according to the present invention for solving the above problems and the tub formed laundry entrance hole in the front; A drum rotatably positioned inside the tub and having a laundry access hole formed in a front portion thereof; A laundry rod mounted on a rear portion of the drum to protrude into the drum, and having a water supply passage formed to supply washing water to the inside of the drum; A motor having a hollow shaft connected to the rear portion of the drum to communicate with the water supply passage of the laundry rod to rotate the drum; It characterized in that it comprises a water supply device for supplying the wash water to the inside of the shaft.

In addition, the drum washing machine according to the present invention includes a tub formed with a laundry access hole in the front portion; A drum rotatably positioned inside the tub and having a laundry access hole formed in a front portion thereof; A laundry rod mounted on a rear portion of the drum to protrude into the drum, and having a water supply passage formed to supply washing water to the inside of the drum; A hollow shaft connected to a rear portion of the drum to communicate with the water supply passage of the laundry rod to rotate the drum; Drive means for rotating the shaft; It characterized in that it comprises a water supply device for supplying the wash water to the inside of the shaft.

In addition, the laundry rod is characterized in that arranged horizontally.

In addition, the laundry rod is characterized in that the fastening bolt is fixed to the rear portion of the drum.

In addition, the laundry rod is characterized in that a plurality of water supply holes are formed on the circumferential surface and an opening hole is formed on the back surface.

The water supply device may include a water supply valve, a first water supply hose through which the wash water passing through the water supply valve is guided, a detergent container through which the washing water passing through the first water supply hose may be included with detergent, and the detergent supply container. And a second water supply hose guiding one wash water to the inside of the shaft.

In addition, the water supply device includes a drain bellows connected to the drain hole formed in the tub, a circulation pump for pumping the wash water passing through the drain bellows, and a circulation hose for guiding the wash water pumped by the circulation pump to the inside of the shaft. Characterized in that consisting of.

In addition, the drum has a through-hole formed in the circumferential portion or the rear portion, characterized in that the lift is mounted on the inner circumference.

The driving means may include a motor mounted to the tub and provided with a rotating shaft, a driving pulley connected to the rotating shaft of the motor, a driven pulley connected to the shaft, and a belt wound around the driven pulley and the driving pulley. It features.

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

1 is a partially cutaway perspective view of a first embodiment of the drum washing machine according to the present invention, and FIG. 2 is a cross-sectional view of the first embodiment of the drum washing machine according to the present invention.

1 and 2, the drum washing machine according to the present embodiment has a casing (2) forming an outer appearance of a base (4), a cabinet (6) erected above the base (4), and It consists of a top plate (8) disposed on the upper surface of the cabinet (6), and a cabinet cover (10) disposed on the front surface of the cabinet (6) and provided with laundry access holes (9).

The door 12 for opening and closing the laundry access hole 9 is rotatably connected to the cabinet cover 10 by a hinge 14.

The door 12 includes a door frame 16 to which the hinge 14 is connected at one side, and a door glass 18 to which the door frame 16 is mounted.

The control panel 11 for inputting the stroke and time of washing, rinsing, dehydration, etc. is mounted on the upper surface of the top plate 8 or on the upper side of the cabinet cover 10.

Inside the casing 2, a tub 22 in which the washing water w for washing the laundry m is contained is supported to be buffered by the spring 23a or the damper 23b.

The tub 22 is a circular cylinder lying on its side, and the laundry entrance hole 24 for entering the laundry m is formed at the front center.

On the other hand, the laundry 22 is accommodated inside the tub 22 so that the drum 30 for washing the laundry m is rotatably positioned.

The drum 30 is a circular cylinder lying on its side, and the laundry entrance hole 32 for entering the laundry (m) is formed in the center of the front part, and the through hole 34 is formed in the circumference or the rear part. The lift 36 is mounted to lift the laundry m from the circumferential surface and to lift the laundry m to fall.

In addition, a laundry rod 38 is mounted on the rear portion of the drum 30 to protrude into the drum 30.

The laundry rod 38 is mounted at the center of the front side of the rear side of the drum 30 and is horizontally disposed to protrude toward the laundry access hole 32.

The washing rod 38 is formed with a water supply passage 38a to supply washing water w to the inside of the drum.

The laundry rod 38 has a plurality of water supply holes 38b formed around the opening rod 38 and opening holes 38c formed on the rear surface thereof.

The laundry rod 38 is fixed to the rear portion of the drum 30 by a fastening bolt 39a.

The washing rod 38 is formed of a fastening hole through which the fastening bolt 39a penetrates and is fixed to the rear surface of the drum 30 to form a plate portion 39b having the opening hole, and the plate portion 39b. The groove 39c protrudes on one surface and secures a fastening space of the fastening bolt 39a, and is formed of a rod portion 39d having the plurality of water supply holes formed on a circumferential surface thereof.

In addition, at the center of the rear side of the rear portion of the tub 22, a motor 40 for supporting and rotating the drum 30 is mounted.

The motor 40 has a shaft 42 fixed through the through hole formed in the center of the rear portion of the tub 22 and fixed to the center of the rear portion of the drum 30.

The shaft 42 is hollowed so as to communicate with the water supply passage 38a of the laundry rod 38.

On the other hand, the drum washing machine further comprises a water supply device 50 for supplying the washing water (w) to the inside of the shaft.

The water supply device 50 includes a water supply valve 52 for intermitting the washing water w supplied from the outside, and a first water supply hose 54 through which the washing water w passed through the water supply valve 52 is guided. And, the washing water tank (56) passing so that the wash water (w) passing through the first water supply hose (54) and the detergent, and the washing water (w) passing through the detergent container 56, the shaft 52 It consists of the 2nd water supply hose 58 which guides inward.

The second water supply hose 58 is supported by a holder 59 mounted to the cabinet 6 so that one end is connected to the outlet of the detergent container 56 and the other end is spaced below the predetermined distance from the shaft 42. .

The other end of the second water supply hose 58 is provided with a water supply nozzle 58a so that the guided wash water w can be strongly supplied to the inside of the shaft 42.

The second water supply hose 58 is preferably supported such that the other end side is inserted into the shaft 42.

In addition, the drum washing machine further includes a drainage device 60 connected to the tub 22 to drain the washing water w in the tub 22 to the outside.

The drainage device 60 includes a drain bellows 62 connected to a drain hole formed in the tub 22, a drain pump 64 for pumping the washing water w passing through the drain bellows 62, and the drain water. It consists of a drain hose 66 for guiding the washing water w pumped from the pump 64 to the outside of the casing 2.

Reference numeral 72 is a gasket fitted into the laundry access hole 9 of the cabinet cover 10 and the laundry access hole 24 of the tub 22, and reference numeral 74 denotes a rear surface of the drum 20. Is mounted on the one end of the shaft 42 is fixed to the spider, reference numeral 76 is a shaft so that the opening hole 38c and the water supply passage 38a of the laundry rod 36 and the inside of the shaft 42 is passed through. The water supply hole formed in the spider 74, reference numeral 78 is a washing water (w) supplied through the water supply device 50 and the shaft 42 to the opening hole 38c and the water supply passage 38a. It is a water supply hole formed in the center of the rear surface of the drum 30 to be introduced.

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

First, the laundry (m) is put into the drum 20, the detergent is put into the detergent container 46 of the water supply device 40, and the door 30 is closed, and then the washing, rinsing, and dehydration strokes are performed. And when the time is selected, the water supply valve 52 of the water supply device 50 is turned on for a predetermined time and then turned off to pass a predetermined amount through the wash water (w), the water supply wash water (w) is the first water supply The detergent 54 is introduced into the detergent container 56 through the hose 54, and the detergent is contained therein, and water is supplied into the shaft 42 through the second water supply hose 58.

Washing water (w) containing the detergent supplied in the water passes through the inside of the shaft 42, the water supply hole 78 of the drum 30 and the opening hole 38c of the laundry rod 38 in order to wash It flows into the water supply passage 38a of the rod 38 and is directly injected into the drum 30 through the water supply hole 38b of the laundry rod 38.

Washing water (w) containing the sprayed detergent is soaked in the laundry (m) while being in direct contact with the laundry (m) inside the drum (30).

Then, when the motor 40 is turned on and the drum 30 is rotated, the lift 36 of the drum 30 spreads the laundry m, and the laundry m is inside the drum 30. Fall by self weight in the upper position.

The laundry m that falls falls on the laundry rod 38 and is primarily promoted to be washed, and then falls back to the inner lower portion of the drum 30 to wash the laundry m or the washing water of the lower portion of the drum 30. Cleaning is promoted secondaryly.

On the other hand, the drum washing machine is the motor 40 is turned off after the washing is performed for a predetermined time, the drainage device 60 drains the contaminated washing water (w) in the tub 22 to the outside.

Then, the drum washing machine performs a rinsing stroke to rinse the foam in the laundry (m).

During the rinsing stroke, the water supply valve 52 of the water supply device 50 is turned on and then turned off for a predetermined time to pass a predetermined amount through the washing water w, and the supplied washing water w is the first water supply hose 54. ) And the detergent container 56 and the second water supply hose 58 is supplied to the inside of the shaft 42.

Washing water (w) containing the water supplied detergent is soaked in the laundry (m) while being in direct contact with the laundry (m) as in the laundry administration.                     

Then, when the motor 40 is turned on and the drum 30 is rotated, the lift 36 of the drum 30 spreads the laundry m, and the laundry m is inside the drum 30. Fall by self weight in the upper position.

The laundry (m) that falls falls on the washing rod (38) to promote rinsing first, and then falls back to the inner lower portion of the drum (30) to wash the laundry (m) or the washing water (w) at the lower inner portion of the drum (30). Rinsing is accelerated in contact with

On the other hand, in the drum washing machine, the motor 40 is turned off after the rinsing is performed for a predetermined time, and the drainage device 60 drains the contaminated washing water w in the tub 22 to the outside.

Thereafter, the drum washing machine rotates the drum 30 at a high speed to perform a dehydration stroke of centrifugal dehydration of water in the laundry (m).

On the other hand, when the drum washing machine has a large amount of laundry (m), the washing or rinsing performance due to the drop of the laundry (m) is reduced, but the laundry (m) is in direct contact with the laundry rod 38 (that is, Scrubbing) improves washing or rinsing performance.

In addition, when the drum washing machine is supplied with the washing water w including detergent or the washing water w without detergent through the washing rod 38 while the drum 30 is being rotated, the washing rod The washing water w supplied in the 38 is centrifugally sprayed so as to be in strong contact with the laundry m, thereby improving washing or rinsing performance.

3 is a cross-sectional view of a drum washing machine second embodiment according to the present invention.                     

As shown in FIG. 4, the drum washing machine according to the present embodiment includes a motor 102 having a driving shaft for rotating the shaft 42 mounted on the tub 22 and provided with a rotating shaft 101, and the motor 102. Drive pulley (104) connected to the rotation shaft 101 of the shaft, driven pulley (106) connected to the shaft (42), and the belt (108) wound on the driven pulley (106) and the pulley (104) Since the motor 102, the driving pulley 104, the driven pulley 106, and the belt 108 have the same configuration and operation as those of the first embodiment of the present invention, the same reference numerals are used. Omit.

4 is a partially cutaway perspective view of a third embodiment of the drum washing machine according to the present invention, and FIG. 5 is a cross-sectional view of the third embodiment of the drum washing machine according to the present invention.

In the drum washing machine according to the present embodiment, as shown in FIGS. 4 and 5, the washing water w supplied from the outside is supplied to the inner lower portion of the tub 22 by the first water supply device 110, and the tub The wash water w supplied to the water 22 is sprayed into the drum 30 by the second water supply device 120, the shaft 42, and the laundry rod 38, and the first water supply device 110. Since the configuration and operation other than the second water supply device 120 are the same as in the first or second embodiment of the present invention, the same reference numerals are used, and detailed description thereof will be omitted.

The first water supply device 110 is a water supply valve 112 for intermitting the wash water (w) supplied from the outside, and a water supply hose 114 for guiding the washing water (w) passing through the water supply valve 112 is guided And, the washing tub (116) passing through the wash water (w) passing through the water supply hose 114 can be included with the detergent, and the washing water (w) passing through the detergent tub 116 into the water supply port of the tub The load is composed of a feedwater bellows 118.

The second water supply device 120 includes a drain bellows 122 connected to a drain hole formed in the tub 22, a circulation pump 124 for pumping the wash water w passing through the drain bellows 122, and It consists of a circulation hose 126 for guiding the wash water w pumped from the circulation pump 124 to the inside of the shaft.

The circulation hose 126 is supported by a holder 129 mounted to the cabinet 6 so that one end is connected to the circulation pump 124 and the other end is spaced apart from the shaft 42 by a predetermined distance.

The other end of the circulation hose 126 is provided with a water supply nozzle 126a so that the guided wash water w is strongly supplied to the inside of the shaft 42.

The circulation hose 126 is preferably supported such that the other end is inserted into the shaft 42.

The drum washing machine according to the present embodiment is turned off after the water supply valve 112 of the first water supply device 110 is turned on for a predetermined time in a washing stroke to supply a predetermined amount of the washing water w, and the supplied washing water ( w) is introduced into the detergent container 116 through the water supply hose 114, the detergent is included, water is supplied to the inner lower portion of the tub 22 through the water supply bellows 118, the It is introduced into the drum 30 through the through hole 34 soaked in the laundry (m).

Then, when the motor 40 is turned on and the drum 30 is rotated, the lift 36 of the drum 30 spreads the laundry m, and the laundry m is inside the drum 30. In the upper position is dropped by its own weight.

The laundry m that falls falls on the laundry rod 38 and is primarily promoted to be washed, and then falls back to the inner lower portion of the drum 30 to wash the laundry m or the washing water of the lower portion of the drum 30. Cleaning is promoted secondaryly.

On the other hand, the drum washing machine is the circulation pump 124 of the second water supply device 120 when the water supply of the first water supply device 110 or the rotation of the drum 30 is turned on, the inner lower portion of the tub 22 The wash water w including the detergent contained in the pumped by the circulation pump 124 is passed through the drainage bellows 122, the circulation pump 124 and the circulation hose 126, the shaft 42 It is watered into the inside of.

Washing water (w) containing the detergent supplied in the water passes through the inside of the shaft 42, the water supply hole 78 of the drum 30 and the opening hole 38c of the laundry rod 38 in order to wash It flows into the water supply passage 38a of the rod 38 and is directly injected into the drum 30 through the water supply hole 38b of the laundry rod 38.

Washing water (w) containing the sprayed detergent helps to wash the laundry (m) while being in direct contact with the laundry (m) inside the drum (30), and is quickly wetted in the laundry (m).

In the drum washing machine, after the washing is performed for a predetermined time, the circulation pump 124 of the motor 40 and the second water supply device 120 is turned off, and the drain pump 64 is turned on to turn the inside of the tub 22. The contaminated wash water w is drained to the outside through the drain hose 66.

During the rinsing stroke, the water supply valve 112 of the first water supply device 110 is turned on for a predetermined time and then turned off to supply a predetermined amount of the washing water w, and the supplied washing water w is the water supply hose 114. ) And the water supply through the detergent container 116 and the water supply bellows 118 to the inner lower portion of the tub 22, and flows into the drum 30 through the through hole 34 of the drum 30 to be washed. soaked in (m).

Then, when the motor 40 is turned on and the drum 30 is rotated, the lift 36 of the drum 30 spreads the laundry m, and the laundry m is inside the drum 30. Fall by self weight in the upper position.

The laundry (m) that falls falls on the washing rod (38) to promote rinsing first, and then falls back to the inner lower portion of the drum (30) to wash the laundry (m) or the washing water (w) at the lower inner portion of the drum (30). Rinsing is accelerated in contact with

On the other hand, the drum washing machine is the circulation pump 124 of the second water supply device 120 when the water supply of the first water supply device 110 or the rotation of the drum 30 is turned on, the inner lower portion of the tub 22 Washing water (w) contained in is sprayed through the laundry rod 38 as in the washing stroke, while directly contacting the laundry (m) inside the drum 30 to help rinse the laundry (m), laundry (m) Wet quickly).

In the drum washing machine, after the rinsing is performed for a predetermined time, the circulation pump 124 of the motor 40 and the second water supply device 120 is turned off, and the drain pump 64 is turned on to turn the inside of the tub 22. The contaminated wash water w is drained to the outside through the drain hose 66.

Thereafter, the drum washing machine rotates the drum 30 at a high speed to perform a dehydration stroke of centrifugal dehydration of water in the laundry (m).

Drum washing machine according to the present invention configured as described above is equipped with a laundry rod on the back of the drum, the water supply device to supply the wash water to the laundry rod, washing water supplied to the laundry rod is directly supplied to the laundry, washing water The advantage is that the laundry can be soaked quickly and evenly.

In addition, in the drum washing machine according to the present invention, since the laundry falling from the inner upper portion of the drum first hits the laundry rod and then falls to the inner lower portion of the drum, the second washing machine increases the number of hits of the laundry, thereby washing the laundry. Or there is an advantage that the rinsing performance is improved.

Claims (9)

A tub having laundry access holes formed at a front surface thereof; A drum rotatably positioned inside the tub and having a laundry access hole formed in a front portion thereof; A laundry rod mounted on a rear portion of the drum to protrude into the drum, and having a water supply passage formed to supply washing water to the inside of the drum; A motor having a hollow shaft connected to the rear portion of the drum to communicate with the water supply passage of the laundry rod to rotate the drum; Drum washing machine comprising a water supply device for supplying the washing water to the inside of the shaft. A tub having laundry access holes formed at a front surface thereof; A drum rotatably positioned inside the tub and having a laundry access hole formed in a front portion thereof; A laundry rod mounted on a rear portion of the drum to protrude into the drum, and having a water supply passage formed to supply washing water to the inside of the drum; A hollow shaft connected to a rear portion of the drum to communicate with the water supply passage of the laundry rod to rotate the drum; Drive means for rotating the shaft; Drum washing machine comprising a water supply device for supplying the washing water to the inside of the shaft. The method according to claim 1 or 2, Drum washing machine characterized in that the laundry rods are arranged horizontally. The method according to claim 1 or 2, The washing rod is a drum washing machine, characterized in that fixed to the back portion of the drum with a fastening bolt. The method according to claim 1 or 2, The washing rod is a drum washing machine, characterized in that a plurality of water supply holes are formed on the circumferential surface and an opening hole is formed on the back surface. The method according to claim 1 or 2, The water supply device includes a water supply valve, a first water supply hose through which the wash water passing through the water supply valve is guided, a detergent container through which the wash water passing through the first water supply hose can be included with detergent, and a laundry passing through the detergent container. And a second water supply hose for guiding water into the shaft. The method according to claim 1 or 2, The water supply device includes a drain bellows connected to a drain hole formed in the tub, a circulation pump for pumping the wash water passing through the drain bellows, and a circulation hose for guiding the wash water pumped by the circulation pump into the shaft. Drum washing machine, characterized in that. The method according to claim 1 or 2, The drum is a drum washing machine, characterized in that the through hole is formed in the circumferential portion or the rear portion, the lift is mounted on the inner circumference. The method of claim 2, The driving means comprises a motor mounted to the tub and provided with a rotation shaft, a drive pulley connected to the rotation shaft of the motor, a driven pulley connected to the shaft, and a belt wound around the driven pulley and the driving pulley Drum washing machine.

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