KR20000014014U - Drum Washing Machine with Washing Wings - Google Patents

Abstract

In the present invention, the laundry tank 7 into which the laundry 11 is put is arranged horizontally in the water storage tank 5, and a plurality of washing blades 9 are formed in the longitudinal direction on the inner circumferential surface of the laundry tank 7, In the drum washing machine (1) through which a plurality of washing liquid distribution holes (10) penetrate (7), the washing blade (9) has a triangular cross section protruding inward in the washing tank (7) and has a washing tank ( It relates to a drum washing machine having a washing blade bent in the form of a spiral having a predetermined angle (θ) with respect to the axis of 7), wherein the laundry is rotated up and down, ie circumferential direction of the washing tank when the washing tank is rotated by the spiral blade Rather, it is intended to increase the washing power by minimizing the variation of the washing result by moving in the front and rear direction, that is, the length of the washing tank to move evenly in the washing tank.

Description

Drum type washing machine provided with washing blade on the inner periphery of washing drum

The present invention relates to a drum washing machine, and more specifically, the inner circumferential surface of the washing tank has a spiral shape protruding in the longitudinal direction, and attached to the washing wing having a cross-sectional shape having a keyhole shape to wash the laundry in the washing tank. To a drum washing machine having a washing blade that can be more effectively lifted in the circumferential direction of the washing tank and moved in the longitudinal direction of the washing tank so that the laundry can be evenly mixed in the washing tank during the washing stroke to increase the washing power. will be.

In general, a washing machine includes a pulsator type using water flow by rotation of a pulsator and a drum type using impact force due to vertical fall of laundry by rotation of a drum.

Among them, the drum washing machine is generally coaxially arranged with the reservoir 103, the reservoir 105 mounted inside the cabinet 103, and the reservoir 105, as shown in FIG. Cabinet 103 with a minimum shaking state of the washing tank 107 for washing the laundry put into the interior, the drive motor 113 and the reservoir 105 for rotationally driving the washing tank 107 by the belt 109 and the pulley 111. It is composed of a suspension device consisting of a spring 115 and a damper 117 to support), and other devices for drainage and water supply and various connection devices are additionally attached.

The front side of the washing tank 107 is provided with a door 121 which is connected in a watertight state by the door bellows 131 for access to the laundry, and the drum slide 123 is integrally attached to the rear of the washing tank 107. The rotary shaft 125 of the washing tub 107 protrudes and is rotatably supported by the bearing 127 on the bearing housing 129 on the central portion of the drum slide 123.

A plurality of locking jaws 119 are attached to the inner circumferential surface of the washing tank 107 to lift the laundry upwards as the washing tank 107 rotates forward and backward, and a drain hose 133 on one side of the bottom surface of the storage tank 105. ) Is connected to the drainage pump 135 operates to drain the washing solution is finished.

In general, the conventional drum type washing machine 101 having the configuration as mentioned above is to wash the laundry through the following process.

First, when the laundry is put into the washing tank 107 and the washing machine 101 is operated, after the water is supplied into the washing tank 107 through the water supply valve and a predetermined quantity is supplied, the washing liquid is heated by the heater 112 while the motor is heated. 113 is driven, and the rotational force of the motor 113 generated through the motor pulley 137, the drive belt 109, the belt pulley 111, the rotating shaft 125 and the drum slide 123 through the washing tank ( 107). When the washing tank 107 rotates by the rotational driving force transmitted in this way, the laundry in the washing tank 107 is lifted upward by the lift 119 protruding from the inner circumferential surface of the washing tank 107 and then falls downward again. The impact on the washing liquid, and the impact force generated at this time, the contaminants on the laundry come off the laundry, washing is performed by repeating this drop motion several times.

The washing tank 107 repeats the forward and reverse rotation at a low speed, that is, about 50 to 55 rpm while the washing operation is performed, and when dewatering, the washing tank 107 rotates at a high speed, that is, at a speed of 800 to 1000 rpm. After exiting the reservoir 105 through a number of fine holes (not shown) formed in the circumferential wall of the washing tank 107 is drained out through the drain hose 133 by the pumping force of the drain pump 135.

At this time, as shown in Figure 2 during the washing in the washing tank 107 and the reservoir 105, the water surface 110 stays at the 1/3 point at the bottom, so the laundry is caught up by the catching jaw 119, the water surface from the top ( Impact force generated while falling to 110) or only the flow of the washing water flowing from the bottom of the washing tank 107 to the left and right can be used as the washing force. Although the impact generated helps a little in washing, the amount of water to be pumped up was not very helpful in improving washing power.

In order to overcome the limitation of the washing power increase by such washing water, a plurality of brushes 205 on the inner circumferential surface of the washing tank 203, such as the drum washing machine 201 disclosed in the Korean Utility Model Registration Application No. 89-20240 shown in FIG. Drum washing machine with a has been proposed.

Like the drum washing machine 201, the drum washing machine 201 receives washing liquid flowing through the water supply pipe 209 into the water tank 207 and washes and rinses by the rotational movement of the washing tank 203 rotating forward and backward in the water tank 207. After the dehydration, the water is discharged through the drain pipe 211 to finish a series of washing operations. In particular, in addition to the dropping of the laundry during the washing process, the washing force was improved by the frictional force of the brush 205. At the time of washing, since the rotation speed of the washing tank 203 is not large, the friction force is not largely generated between the laundry and the brush 205.

Therefore, the present invention has been devised to solve the disadvantages of the conventional drum washing machine as mentioned above, a plurality of spirals extending in the longitudinal direction in the washing tank, a plurality of cross-sectional shape has a keyhole shape. The purpose of the present invention is to increase the washing power by minimizing the variation of the washing result by moving the laundry in the washing tank by moving the laundry in the front and rear direction as well as the up and down direction by attaching the washing blade.

1 is a side cross-sectional view showing a conventional drum washing machine having a locking jaw formed on the inner circumferential surface of the washing tank.

Figure 2 is a schematic front sectional view showing a conventional drum washing machine with a brush formed on the inner circumferential surface of the washing tank.

3 is a schematic front sectional view of a drum washing machine according to the present invention.

4 is a side cross-sectional view of the drum washing machine of FIG.

5 is a plan sectional view of the drum washing machine washing tank shown in FIG.

6 is an exploded view of a drum washing machine washing tub according to another embodiment of the present invention;

7 is a schematic front sectional view of a drum washing machine washing tub according to another embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

1: drum washing machine 2: washing liquid

3: cabinet 5: reservoir

7: washing tank 9,209: washing wing

10: washing liquid distributor 13: drive motor

17: suspension 21: washing water inlet

25: rotating shaft 31: water supply pipe

33: drain pipe 35: drain pump

37: detergent container

In order to achieve this object, the present invention is provided with a laundry tank into which the laundry is put in a horizontally arranged in the water storage tank, a plurality of washing wings are formed in the inner circumferential surface of the washing tank in the longitudinal direction, and a plurality of washing liquids are circulated through the washing tank. In a drum washing machine through which a ball is penetrated, the washing blade has a triangular cross section protruding inwardly in the washing tank radially and provides a drum washing machine having the washing blade bent in a spiral form having a predetermined angle with respect to the axis of the washing tank.

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

3 and 4, the drum washing machine 1 according to the present invention, like the conventional drum washing machine, the external cabinet 3, the laundry tank 7 into which the laundry 11 is put, and the washing liquid is filled. Basically, it is comprised by the drive motor 13 which generate | occur | produces the rotational driving force of the water storage tank 5, the washing tank 7, and the suspension apparatus 17 which attaches and supports the water storage tank 5 to the cabinet 3. As shown in FIG.

Here, the front of the washing tank 7 is provided with a door 22 for injecting the laundry 11, the door 22 is connected to the cabinet 3 in a state of maintaining the watertight by the door bellows (31) It is. The rotating shaft 25 protruding from the rear side of the washing tank 7 is supported by the water storage tank 5 so as to be rotatable by a bearing mounted on the bearing housing, and is wound around the belt pulley 11 attached to the end of the rotating shaft 25. Receiving the rotational force of the drive motor 13 by the (12) rotates the washing tank 7 in the forward and reverse directions.

In addition, a plurality of washing liquid distribution holes 10 are formed in the washing tank 7, and a plurality of washing wings 9 are attached to the inner circumferential surface of the washing tank 7 at predetermined intervals in a state in which the washing tank 7 extends in the longitudinal direction of the washing tank 7. The drainage hose 33 is connected to the bottom surface of the water storage tank 5, and a drainage pump 35 for extracting the washing liquid is provided in the middle of the drainage hose 33.

Here, the plurality of washing wings 9 arranged and attached to the inner circumferential surface of the washing tub 7 have a triangular cross-sectional shape in which the tip portion protrudes radially inward of the washing tub 7 as shown in FIG. 3. 5 is attached to the inner circumferential surface of the washing tank 7 in a spiral shape that is bent by a predetermined angle θ with respect to the rotation axis 25 as schematically shown in FIG. 5.

In addition, according to another embodiment of the present invention in which the washing tank 7 is shown in an expanded state as shown in FIG. 6, the washing blade 159 having the same shape as the washing blade 9 shown in FIG. It is attached to the inner wall surface of the washing tank 7 in the state inclined by the predetermined angle (theta) with respect to the axis line 25 of (7). At this time, each of the washing blades 159 is arranged in the washing blades 9 are inclined at a predetermined angle (θ) in the same direction, while the washing blades 159 according to this embodiment alternately in the alternate direction, that is, opposite It is arranged inclined in the direction.

In addition, according to another embodiment of the present invention, the washing blade 209 is bent in a spiral like the embodiment of Figure 5, while the cross-sectional shape as shown schematically in Figure 7, the base 21 is a triangle Thus, the tip 23 formed at the radially inner end of the washing tub 7 of the base 21 may have the form of a keyhole that is circular.

Therefore, according to the drum washing machine 1 of the present invention configured as described above, the first laundry is put into the washing tank (7), and then the washing liquid is supplied from the water supply pipe (31) to the water storage tank (5) via the detergent container (37). When the water level of the supplied washing liquid 2 reaches an appropriate value, washing is started while the washing tank 7 starts to rotate. At this time, the laundry in the washing tank 7 is pulled up as shown in FIGS. 3 and 4 by the washing blade 9 as the washing tank 7 rotates in the forward and reverse directions.

At this time, as shown in Figure 5, the laundry 11 is subjected to the force in the direction of the arrow (A or A ') by the washing blade (9), so the arrow (B or circumferential component of the washing tank 7 of this force) The upward movement is caused by the force in the direction of B ') and moved forward by the force in the direction of the arrow C or C', which is the longitudinal force of the washing tank 7 of the force A.

Therefore, the laundry can be moved at the same time in the circumferential direction and the longitudinal direction of the washing tank 7 only by rotating the washing tank 7 so that the laundry 11 is pulled upwards and moved slightly forwardly, thereby allowing the laundry 11 to move inward. Evenly distributed at

In addition, according to the washing machine provided with a washing blade according to another embodiment of the present invention as shown in Figure 6, the washing blade 159 is arranged at an angle to the inner wall surface of the washing tank 7 while being inclined by a predetermined angle (θ) Since they are alternately arranged alternately in a direction facing or away from each other, it is possible to lift the laundry more effectively when the washing tank 7 rotates in the forward and reverse directions during washing.

As shown in FIG. 7, the cross-sectional shape of the washing blade 209 is manufactured as a keyhole, so that the laundry 11 slips from the washing blade 209 in a state in which the laundry 11 is not sufficiently raised due to its own weight, as shown in FIG. 3. It can also be prevented.

After washing is completed, the drain hose 33 connected to the bottom surface of the reservoir 5 is opened, and the drain pump 35 is operated to extract the washing liquid through the drain hose 33 and then go through a series of dehydration strokes. The laundry is finished.

As described above, according to the drum washing machine of the present invention, a plurality of washing wings are attached to the inner circumferential surface of the washing tank in a longitudinal direction, and the blades are manufactured in a spiral shape to bend at a predetermined angle with respect to the central axis of the washing tank. As it can enable the longitudinal movement of the laundry that was not expected in the early stage of the washing machine, it is possible to improve the washing power by increasing the amount of movement of the laundry in the washing tank during washing, and also to reduce the washing deviation through more frequent position changes of the laundry. You can wash.

At this time, the cross-sectional shape of the washing blade is formed in the form of a blunt end, such as a keyhole, so that the laundry movement effect can be further increased by not slipping easily from the washing blade before the laundry rises to an appropriate height.

Although the present invention has been shown and described with respect to particular embodiments, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the accompanying Utility Model Claims. Anyone who owns it can easily find out.

Claims (4)

The washing tank 7 into which the laundry 11 is put is arranged horizontally in the water storage tank 5, and a plurality of washing blades 9 are formed in the longitudinal direction on the inner circumferential surface of the washing tank 7, and the washing tank ( In the drum washing machine (1) through which a plurality of washing liquid distribution holes (10) penetrates, the washing blade (9) protrudes inward in the radial direction of the washing tank (7) and the washing tank (7). Drum washing machine with a washing blade characterized in that it is bent in the form of a spiral having a predetermined angle (θ) with respect to the axis. The drum with a washing blade according to claim 1, wherein the washing blade (9) has a triangular cross section and is bent in the same direction with a predetermined angle (θ) with respect to the axis of the washing tank (7). washer. The drum washing machine according to claim 1, wherein the washing blades (159) are arranged in an alternately alternate direction by a predetermined angle (θ) with respect to the axis of the washing tank (7). The drum washing machine according to claim 1, wherein the washing blade (209) has a cross-sectional shape in the form of a keyhole consisting of a triangular base (21) and a circular tip portion (23).