JPH07299284A - Washing machine - Google Patents

Abstract

PURPOSE: To sufficiently hit laundry with washing water and to improve washing efficiency by generating a waterfall stream by concentratedly pouring a part of the washing water to the center of a washing tub and adding an impact to the laundry floating toward the center of the washing tub by the inversion of a pulsator. CONSTITUTION: When the laundry is put into a dehydrating tub 30 containing the appropriate amount of the washing water and the pulsator 40 and many vanes 43 as impellers are rotated by driving power from a driving power transmission part 60, the washing water reaches the lower part of the pulsator 40 through many holes perforated on the pulsator 40. Then, it is pressurized by the vanes 43 provided coaxially to the pulsator 40, is elevated inside an elevating flow guiding pipe 76 and reaches a vortex flow chamber formed at the upper part of the dehydrating tub 30. Then, it is dropped as waterfall water from a first ejection port 81 opened at the vortex flow chamber and washing is performed by sinking the laundry floating inside the dehydrating tub 30 while hitting it. Also, lint separated in the vortex flow chamber is filtered by a filter 83 from a second ejection port 82.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine, and more particularly, it is composed of a large number of upward flow guide pipes mounted in a dehydration tub, and the guide pipes are provided at the upper end thereof. The present invention relates to a washing machine including an outlet and a middle end outlet formed in the middle of the outlet.

[0002]

2. Description of the Related Art A washing machine generally has a structure as shown in FIG. 5, which is fixedly installed inside a main body 1 of a washing machine and stores a fixed amount of washing water necessary for washing and a water tank. Two
It is roughly divided into a washing tub 3 installed inside and a tub 3 provided with a pulsator 4, and a power driving unit 5 provided below the outer side of the water tub 2 and transmitting power required for washing.

The power drive unit 5 is provided on the lower outer side of the water tank 2 and has a drive motor 5a for generating power and a drive motor 5a.
The power transmission unit 5b is configured to drive the washing tub 3 and the pulsator 4 in response to the transmission of the power a. Furthermore, a guide flow 3a for guiding the washing water upward is constructed by forming a double body in only a part of the section so that a space is formed inside at an appropriate place on either the inside or outside of the washing tub 3. Is installed.

The guide flow 3a has an inflow hole 3b which is in communication with the lower side and into which wash water flows in during a washing and rinsing process, and a drain hole 3c which is in communication with the upper side and drains the wash water which flows in through the inflow hole 3b. It is installed on the outer peripheral edge of the front of the drainage hole 3c so as to be removable, and drained through the drainage hole 3c.
It has a mesh-shaped filter member 3d for filtering out foreign substances contained in the washing water. Such a typical conventional technology,
It is shown in Japanese Patent Publication No. 55-240668.

Therefore, during the washing and rinsing process, the pulsator 4 is intermittently inverted by receiving the power transmitted from the drive motor 5a, and the washing and rinsing process is performed. The inverted pulsator 4 plays an impeller role, and if a part of the washing water is forced to flow into the inflow hole 3b of the guide flow 3a,
The wash water that has flowed in through the inflow hole 3b is guided by the guide flow 3
a It is repeatedly drained through the drain hole 3c on the upper side.

The process is repeatedly performed for a pre-programmed time to perform a washing and rinsing process. At this time, the foreign substances contained in the washing water discharged through the drain hole 3c are It comes to be filtered in the filter member 3d.

[0007] In such a washing machine, in particular, during washing and rinsing strokes, while the foreign substances contained in the washing water are filtered out, the washing and rinsing strokes have an excellent effect, but the following is obtained. It was accompanied by certain drawbacks.

[0008]

During the washing and rinsing process, the pulsator 4 is turned over to form a water flow in the wash water, but the water flow is generated only on one side of the washing tub 3. Since it is trying to flow into the formed inflow hole 3b of one guide flow 3a, a particularly serious vortex phenomenon is generated at the inflow hole 3b portion of the washing tub 3 installed below the guide flow 3a.

Therefore, at the inflow hole side of the guide flow in which the swirling flow of washing water is concentratedly formed, during the washing and rinsing strokes,
There was a great deal of entanglement and twisting of the laundry.

Further, since the washing water is concentrated only around the one inflow hole, the washing water cannot be circulated sufficiently, so that the washing process is performed in a state where the detergent contained in the washing water is not sufficiently dissolved. As a result, the washing efficiency is lowered, and undissolved detergent is naturally drained along with the drained washing water during the drainage process, resulting in waste of detergent and environmental pollution. In addition, the pulsator 4 which is turned over forms a washing water flow that swirls toward the center.

Therefore, the laundry accompanying the washing and rinsing process rotates with the swirling flow of washing water and is exposed to the upper side of the pulsator 4, that is, the upper side of the central portion of the washing tub 3, so that the laundry can be sufficiently washed. Since it is not soaked, there is a further problem that the washing efficiency is reduced.

[0012]

SUMMARY OF THE INVENTION Therefore, the present invention has been made in view of the above-mentioned conventional technical drawbacks, and the first object of the present invention is to direct a part of the washing water toward the center of the washing tub. By intensively pouring and forming a waterfall stream, by inverting the pulsator, it impacts the laundry that floats toward the center of the washing tub, so that the laundry is sufficiently immersed in the washing water. Accordingly, it is an object of the present invention to provide a washing machine capable of improving washing efficiency.

A second object of the present invention is to provide a washing machine which performs a light washing by sufficiently filtering out foreign substances such as wax contained in the washing water during the washing and rinsing steps.

A third object of the present invention is to provide a washing machine which promotes the complete dissolution of the detergent due to the turbulence of the wash water, because the wash water repeatedly circulated falls at different heights. To provide.

[0015]

In order to achieve the above-mentioned objects and the like, a washing machine of the present invention is provided with a tubular water tank having an upper side opened and a lower side sealed to store water. A dehydration tank housed in the water tank; a power transmission device for transmitting the power of a motor to the dehydration tank; a power transmission device housed in the dehydration tank and driven according to forward and reverse rotations of the power transmission device; A sweater; an impeller provided with a plurality of radially extending wings on the lower part of the pulsator; and a water located on the inner wall of the dewatering tank, the water discharged by the impeller being moved upward along the inner wall. It is composed of a plurality of upward flow induction tubes for induction.

Further, each of the upward flow guide pipes has a pressure water inlet formed at a lower end thereof, a first discharge port formed at an upper end thereof, and a suction port formed at a lower portion of the first discharge port. It is formed by the second discharge port provided with a filter.

Further, the washing machine of the present invention is provided with a swirl generating chamber having an inclined surface on the inner side of the first discharge port of the guide tube so as to generate a swirl.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention which achieves the above objects will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a washing machine according to the present invention. A water tank 20 for storing a certain amount of washing water is installed inside the main body 10 of the washing machine, and a dehydration tank 30 having a pulsator 40 inside is installed in the water tank 20.

At the upper end of the dehydration tank 30, a liquid balance 5
0 is provided, and on the other hand, a power transmission unit 60 that transmits the power required for washing is installed in the outer lower portion of the water tank 20. As a result, the pulsator 40 has a large number of vanes 43, that is, impellers, on its lower surface. Each of the vanes 43 is formed in a radial linear shape, and its height changes from the central portion toward the peripheral portion. That is, the central part of the pulsator 40 is the highest and the edge is the lowest. Therefore, the washing water stored in the lower part of the water tank 20 is lifted and radially discharged along the vane.

A large number of upward flow guide tubes 70 are installed in the dehydration tank 30 so as to extend from the lower surface to the upper open end. Figure 2
As described above, each upflow guide tube 70 is formed of a body 71 having an angled cross section, and the body 71 is spaced apart from the inner wall of the dehydration tank 30 by a constant distance. A plate 71P formed in parallel with is provided, and a passage 76 is formed between the rear surface of the plate 71P and the inner wall of the dehydration tub 30 to be used as an upward flow passage.

Further, the ascending flow guide pipe 70 discharges the ascended pressure water through the inlet 72 formed at the lower end of the body 71 and the passage 76 to receive the ascended pressure water discharged from the outside of the vane 43. The first discharge port 81 is formed at the upper end of the body 71, and the second discharge port 82 is formed at a certain degree below the first discharge port. The second discharge port 82 is provided with a removable filter 83,
Strain out the mixture in pressure water.

Further, the first discharge port 81 is formed so that the pressure water passing through the passage 76 is directed to the intermediate portion of the dehydration tank 30. Furthermore, the ascending flow guide tube 70 is further provided with a third discharge port 73 formed at an intermediate portion of the plate 71P of the body 71. A vane 43 is installed inside the upper end of the third discharge port 73 so that a part of the pressure water flows from the passage 76 toward the dehydration tank 30. Moreover, the third discharge port 73 is connected to the body 7
The pressure water associated with the first passage 76 is formed toward the edge of the washing water in the dehydration tub 30.

On the other hand, the third discharge port 73 can be formed by a large number of holes 74 as shown in FIG. As shown in FIG. 3, the upper end of the ascending flow guide tube 70 is provided with a first discharge port 81 and a second discharge port 82 inside the swirl chamber 8.
It forms in 4. The cross section of the swirl chamber 84 is formed to be larger than the cross section of the passage 76 of the body 71, and the pressure water rising through the passage 76 changes in the swirl chamber 84 due to the swirling flow.

Further, the right upper end portion of the swirl chamber 84, that is,
A smooth curve is formed at the corner of the portion in contact with the lower portion of the balance ring 50, so that the pressurized water rising through the passage 76 of the body 71 can be discharged more smoothly. The washing machine of the present invention configured as described above operates as follows.

The laundry is put in the dehydration tub 30 containing an appropriate amount of washing water, and first, the pulsator 40, which is inverted according to the power transmitted by the power transmission unit 60, is rotated. At this time, the washing water on the upper part of the pulsator 40 falls to the lower part of the pulsator 40 through a large number of holes (not shown) penetrating the pulsator 40. A large number of vanes 43 formed on the lower surface of the pulsator 40 and serving as an impeller rotate together with the driving of the pulsator 40.

Since the vane 43 is formed in a straight line, even if the washing water between the lower surface of the pulsator 40 and the upper surface of the aquarium 20 is rotated in either direction, The washing water is discharged radially.

The wash water smashed by the vanes 43 is forcibly sent to each inlet 72 of the upflow guide pipe 70. The entrance 72
The pressurized water that has passed through rises along the passage 76 of the body 71 due to the impeller operation. At this time, part of the ascending flow is discharged through the third discharge port 73, but this is discharged toward the edge of the wash water in the dehydration tub 30.

Most of the upward flow is introduced into the swirl chamber 84,
The action of the swirl chamber 84 allows the water and the oil to be easily separated. Since the coffin containing water is heavier than the water, the water advances toward the first ejection port 81 and the porosity advances toward the second ejection port 82, so that the mixture is filtered. The pressurized water that has passed through each of the first discharge ports 81 is discharged toward the center of the dehydration tub 30, but a large number of first discharge ports 81 are formed along the upper part of the dehydration tub 30. , As strong as waterfall, dehydration tank 3
It falls within 0.

In the initial washing stage, a part of the laundry which is not wet comes to be on the surface of the washing water, but due to the pressure water such as waterfall through the plurality of first outlets 81, the washing is performed. All things will be immediately immersed in the water.

After that, the pulsator 40 is turned over in the main washing stage, and the laundry at the bottom of the dehydration tub 30 is pushed up to the upper center of the washing water. The pressure water flowing down at all the first discharge ports 81 allows the laundry which is about to rise to be immersed again in the lower part of the washing water surface, and the laundry is hit and washed. As a result, the outflow through the third discharge port 73 causes the washing water in the dehydration tub 30 to become turbulent. Further, the third discharge port 73 hits the laundry in the dehydration tub 30.

[0032]

Therefore, by adopting the multi-stage water drop device as in the present invention, the washing water which is sprayed radially inward at a high water level tends to float on the water surface in the dehydration tub. Increase the washing efficiency by sinking the laundry and hitting it. On the other hand, most of the water from which the wax has been removed is discharged through the first discharge port, so that the resistance due to the water containing the wax can be reduced. Moreover,
The washing water in the dehydration tub is more turbulent due to the washing water through the third discharge port having the low water level, and at the same time, the washing efficiency can be further improved by hitting the laundry. Is.

[Brief description of drawings]

FIG. 1 is a view showing a plurality of upflow induction tubes according to the present invention,
It is a vertical cross section of a washing machine.

FIG. 2 is an exploded perspective view of the upflow induction pipe of FIG.

FIG. 3 is a vertical cross-sectional view of the upper end of the upflow guide tube of FIG.

4 is a vertical cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 is an exploded perspective view of the upflow induction pipe of FIG. 1 and another embodiment.

FIG. 6 is a vertical cross-sectional view of a washing machine provided with an upflow guide tube according to the related art.

[Explanation of symbols]

 20 Water Tank 30 Dehydration Tank 40 Pulsator 43 Vane 70 Upflow Induction Tube 72 Inlet 73 Third Discharge Port 76 Passage 81 First Discharge Port 82 Second Discharge Port 84 Vortex Chamber

Claims (5)

[Claims] 1. In a washing machine, a cylindrical water tub having an upper side opened and a lower side hermetically closed to accommodate water; a dehydration tub accommodated in the water tub; And a pulsator (plusator) housed in the dehydration tub and driven in accordance with forward and reverse rotations of the power transmission device, and a pulsator extending radially below the pulsator. An impeller provided with a plurality of blades and the like, and a plurality of upward flow induction pipes located on the inner wall of the dehydration tank for guiding the water discharged by the impeller upward along the inner wall. Each of the upward flow guide tubes has a pressure water inlet formed at a lower end thereof, a first discharge port formed at an upper end thereof, and a second discharge port formed at a lower portion of the first discharge port. Is made at the outlet and the second outlet A washing machine characterized in that a cloth (fiber waste) filter is provided in the. 2. The vortex flow generating chamber, which has an inclined upper surface and is configured to generate a vortex, is provided inside the first discharge port of the guide tube. Washing machine. 3. The washing machine according to claim 2, wherein the inlet of the swirl generating chamber is inclined. 4. The washing machine according to claim 1, wherein a third discharge port is formed below the second discharge port. 5. The washing machine according to claim 3, wherein an inclined pipe is attached to the inside of the third discharge port in the guide pipe so that the washing water falls into the water tank.