JPH10328488A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the re-sticking rate of lint by cloth damages, to improve a recovery rate, to improve washing power and to shorten washing time while increasing the circulation water amount of washing liquid in a washing machine for circulating the washing liquid from the upper part of a washing tank to the inside and washing clothes. SOLUTION: A pulsator 10 is freely rotatably disposed to the bottom surface of a washing and dehydrating tank 22 and driven by a motor 13, plural circulation water paths are independently provided from a pump chamber 12 formed at the outer periphery of a lower side blade 11 provided on the back surface of the pulsator 10 and an upper sprinkling nozzle (sprinkling nozzle) 25 and a lint filter 8 are provided toward the inside of the washing and dehydrating tank 22 at the upper part of the plural circulation water paths. The lint filters 8 are provided in plural opening parts 24a and the sprinkling nozzles are provided at different levels at the upper part of the washing and dehydrating tank 22 and in the middle of a side wall height. For the circulation water amounts of the respective circulation water paths, it is turned to a large amount in a lint filter water path 23a, an upper sprinkling nozzle water path is the next and it is turned to a small amount in a height middle sprinkling nozzle water path.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulsator-type washing machine for washing clothes by circulating washing liquid from an upper portion to a lower portion of a washing tub.

[0002]

2. Description of the Related Art In recent years, protection of the global environment has become a very important issue. Resource conservation is also an important theme among them, and there is a strong demand for water-saving and detergent-saving detergents in washing machines.

[0003] Various washing machines have been proposed for water-saving and detergent-saving agents, for example, those described in JP-A-62-304816. Hereinafter, the configuration will be described with reference to FIGS. 8 and 9.

As shown in FIG. 8, a washing machine outer frame 1 has a water receiving tub 3 suspended by a hanging rod 2, and a washing and dewatering tub 4 is rotatably arranged in the water receiving tub 3. I have. As shown in FIG. 9, the circulating water channel covers 5 a and 5 b are provided on the inner wall of the
a, 6b are formed, and a lint filter 8 and a water spray nozzle 9 are provided in openings 7a, 7b facing the inside of the washing and dewatering tub 4 above the circulation channels 6a, 6b.

The pulsator 10 is rotatably disposed at the bottom of the washing and dewatering tub 4, has a lower blade 11 integrally provided on the back surface, and forms a pump chamber 12 on the outer periphery of the lower blade 11. The motor 13 drives the pulsator 10 via a V-belt 14 and a speed reduction mechanism 15. The drain valve 16 drains the washing water in the washing and dewatering tub 4, and the water supply valve 17 supplies water to the washing and dewatering tub 4. The lid 18 covers the upper part of the washing and spin-drying tub 4.
Control the reversal time and energization of the drain valve 16,
The water supply valve 17 is controlled to sequentially control each process of washing, rinsing, and dehydrating. Reference numeral 20 denotes a fluid balancer that reduces vibration during dehydration.

The operation of the above configuration will be described. First,
When the laundry is put into the washing and spin-drying tub 4 and a start switch (not shown) is pressed, the amount of laundry (cloth amount) is detected by the load amount detecting means of the operation control device 19, and the amount of laundry is detected. Then, the water level and the water flow are determined, and the water supply valve 17 is controlled to supply water to a predetermined water level, and the washing process is started. When entering the washing process,
The motor 13 rotates clockwise, pauses, counterclockwise,
It is controlled by the pause and operation control device 19.

The rotation of the motor 13 thus controlled is transmitted via a V-belt 14 and a speed reduction mechanism 15 to the pulsator 10.
Conveyed to. Therefore, the pulsator 10 and the lower blade 11 rotate in response to the rotation of the motor 13, and the laundry and the washing liquid in the washing and dewatering tub 4 are stirred, so that the laundry is washed. On the other hand, the washing liquid between the lower blade 11 and the water receiving tub 3 is pushed outward by centrifugal force due to the rotation of the lower blade 11 as shown by an arrow in FIG. , 6b, and is intermittently poured into the washing and dewatering tub 4 from the lint filter 8 and the watering nozzle 9 according to the rotation of the motor 13.

As described above, the pumping action of the lower blades 11 of the pulsator 10 guides the washing liquid under the washing and dewatering tub 4 to the upper portion of the washing and dewatering tub 4 through the circulation channels 6a and 6b. Since the washing liquid is always poured into the laundry by sprinkling on the laundry, even if the water level at the time of washing is a little low, it can be sufficiently washed, so that water saving and detergent saving are possible.

Further, by increasing the circulation flow rate of the washing liquid, the dissolving characteristics of the detergent can be improved, and together with the improvement of the dissolving characteristics of the detergent, the washing performance can be improved by the shower effect and the circulation effect of the washing liquid. Can be done.

[0010]

However, in such a conventional structure, a large amount of washing liquid and rinsing water are constantly circulated and poured into the laundry from above. Since a large amount of foam is generated between the washing tank 3 and the washing and dewatering tub 4 and finally comes out from the upper surface of the water receiving tub 3, the water flow must be weakened. Since there is only one lint, lint generated during the washing is poured again into the washing and dewatering tub 4 from above, so that the lint is re-adhered to the clothes, and the lint collection rate is reduced. there were.

The present invention has been made to solve the above-mentioned problems, and while increasing the amount of circulating water for washing liquid, reduces the rate of re-adhesion of lint (filaments) due to cloth damage, improves the recovery rate, and dissolves detergent. The purpose of the present invention is to improve the detergency, improve the detergency, shorten the washing time, and suppress the damage to the cloth and the entanglement of the cloth.

[0012]

According to the present invention, in order to achieve the above object, a lower wing provided on the back of a pulsator is provided with a pulsator rotatably disposed on the bottom of a washing tub and driven by a motor. A plurality of circulating water channels are independently provided from the pump chamber formed on the outer periphery of the washing tub to an upper portion of the washing tub, and a watering nozzle and a lint filter are provided at an opening toward the inside of the washing tub at the upper portion of the plurality of circulating water channels. The reversal time and energization are controlled by the operation control device. A lint filter is provided at a plurality of openings, and a sprinkling nozzle is provided at a height difference between the top of the washing tub and the side wall, and the amount of circulating water in each circulating channel is increased by the lint filter channel, and then the upper sprinkling nozzle channel, The sprinkling nozzle waterway on the way to the height is configured to be small.

[0013] Thus, while increasing the amount of circulating water of the washing liquid, the rate of re-attachment of lint (filament) due to cloth damage can be reduced and the recovery rate can be improved, and the solubility of the detergent can be improved to improve the washing performance. The power can be improved and the washing time can be shortened, and the damage to the cloth and the entanglement of the cloth can be suppressed.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION
A pulsator rotatably disposed on the bottom of the washing tub, a motor for driving the pulsator, and a pump chamber formed on the outer periphery of a lower blade provided on the back of the pulsator, independently from the top of the washing tub. A plurality of circulating water channels provided, a watering nozzle and a lint filter provided in an opening toward the inside of the washing tub above the plurality of circulating water channels, and an operation control device for controlling a reversal time and energization of the motor. Prepared,
The lint filter is provided at a plurality of openings, and the sprinkling nozzle is provided at a height difference between the upper part and the side wall of the washing tub, and the amount of circulating water in each circulating water path is increased in the lint filter water path. The height of the sprinkling nozzle waterway is configured to be small, and a large amount of washing liquid and rinsing water is constantly poured into the laundry from above, and the amount of circulating water of the washing liquid is increased. By increasing the amount of circulating water in the lint filter channel, the rate of re-attachment of lint (filaments) due to fabric damage can be reduced and the recovery rate can be improved, and by improving the solubility of detergent, the cleaning power can be improved. The washing time can be shortened, and cloth damage and cloth entanglement can be suppressed.

According to a second aspect of the present invention, in the first aspect of the invention, the amount of circulating water in the plurality of circulating water passages is adjusted by the cross-sectional area of the circulating water passages. By changing the degree of protrusion of the plurality of circulating water channels provided, it is possible to change the pressure on the cloth when the cloth is rotated during washing, and it is possible to further improve the detergency and shorten the washing time.

According to a third aspect of the present invention, in the first aspect of the present invention, the amount of circulating water in the plurality of circulating water passages is adjusted by an opening area of an inlet from the pump chamber to the circulating water passages. By making the degree of protrusion of the plurality of circulation water channels provided on the inner wall of the washing tub constant, the balance at the time of washing can be improved, and vibration can be reduced.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the amount of circulating water in the plurality of circulating water channels is larger than the lint filter water channel than the watering nozzle waterway and higher than the opening of the upper watering nozzle. The height of the slit at the opening of the sprinkler nozzle is large, so that a well-balanced shower is possible at a position where the water level is medium or lower, the washing liquid can be poured over the entire laundry, and the Can be dropped and rinsed. Conversely, the stirring power can be reduced, the damage to the cloth can be reduced, and the lint can be reduced.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIGS. 1 to 3,
The circulating water channel covers 21a, 21b, and 21c are provided on the inner wall of the washing and dewatering tub (washing tub) 22, and form circulating water channels 23a, 23b, and 23c between the circulating water channels 23a, 23b, and 23c. A lint filter 8, an upper watering nozzle (watering nozzle) 25 and a watering nozzle (watering nozzle) 26 in the middle of the height are provided in openings 24a, 24b and 24c facing the inside of the washing and dewatering tub 22 at the upper part of 23c. . Here, the lint filter 8 has a plurality of openings 24.
a.

The amount of circulating water in each of the circulating channels is increased by using a large amount of the circulating channel (the lint filter channel) 23a, then by using the circulating channel (the upper watering nozzle channel) 23b, and by using a small amount of the circulating channel (the halfway height watering nozzle channel) 23c. It is configured so that Other configurations are the same as the conventional example.

The operation of the above configuration will be described. First,
When the laundry is put into the washing and spin-drying tub 4 and a start switch (not shown) is pressed, the amount of laundry (cloth amount) is detected by the load amount detecting means of the operation control device 19, and the amount of laundry is detected. Is determined according to the water level H and the water flow, the water supply valve 17 is controlled to supply water to a predetermined water level, and the washing process is started. When the washing process starts, the motor 13 is controlled by the operation control device 19 to rotate clockwise / pause / counterclockwise / pause according to the washing water flow.

The rotation of the motor 13 thus controlled is transmitted via a V-belt 14 and a speed reduction mechanism 15 to the pulsator 10.
Conveyed to. Therefore, the pulsator 10 and the lower blade 11 rotate in response to the rotation of the motor 13, and the laundry and the washing liquid in the washing and dewatering tub 4 are stirred, so that the laundry is washed. On the other hand, the washing liquid between the lower blade 11 and the water receiving tub 3 is pushed outward by centrifugal force due to the rotation of the lower blade 11, and is circulated from the pump chamber 12 to the circulation channels 23a, 23b, 23c.
Through the lint filter 8 and the upper watering nozzle 25
In addition, water is intermittently poured into the washing and dewatering tub 22 from the water sprinkling nozzle 26 on the way to the height according to the rotation of the motor 13.

It should be noted that the lower blade 11 causes the circulation waterway 2
In the traces of the washing liquid pushed out by 3a, 23b, 23c,
Fresh washing liquid is supplied from below the center of the lower blade 11. That is, the washing liquid between the water receiving tub 3 and the washing and dewatering tub 22 is supplied, and the liquid level between the water receiving tub 3 and the washing and dewatering tub 22 becomes the water level in the washing and dewatering tub 22. Lower. However, the dewatering hole (not shown) of the washing and dewatering tub 22 and the washing liquid pushed out by the centrifugal force of the washing and dewatering tub 22 and the lower blade 11 are efficiently guided to the circulation water channel, and the total circulation is performed. The flow rate can be increased.

Here, the lint filter 8 is provided in the plurality of openings 24a, and the amount of circulating water of the lint filter 8 is made larger than the amount of circulating water of the upper water sprinkling nozzle 25 and the water sprinkling nozzle 26 in the middle of the height. Since the washing liquid passing through can reduce the momentum, the amount of generated bubbles can be reduced, and the water flow can be set to a strong water flow. Therefore, it is possible to secure the amount of shower from the upper watering nozzle 25 and the halfway watering nozzle 26, to sufficiently immerse the washing liquid in the upper laundry, and to improve the movement of the laundry.

FIG. 4 shows the detergent (surfactant) dissolution characteristics according to the present embodiment and conventional characteristics. In the figure, curve A is the detergent dissolution characteristic according to the present embodiment, and curve B is the conventional characteristic. By increasing the circulation flow rate of the washing liquid in this manner, the detergent dissolving characteristics can be significantly improved.

Next, with respect to the cleaning characteristics, the characteristics of the present embodiment and the conventional characteristics are shown in comparison with FIG. In the figure, the characteristic A is the cleaning rate according to the present embodiment, and the characteristic B is the conventional cleaning rate.
As described above, according to the present embodiment, it is possible to greatly improve the cleaning performance by improving the above-described detergent (surfactant) dissolving characteristics and the shower effect and circulation effect of the washing liquid.

Further, by providing a water flow for each water level, as described above, it is possible to suppress the foaming speed to a certain constant value even within each water level depending on the load amount. It does not come out and can be washed without impairing the washing effect and the shower efficiency.

Further, since the water flow can be set to a strong water flow, the circulation flow rate through the circulation water passages 23a, 23b, 23c can be increased, so that the amount of washing liquid passing through the lint filter 8 can be increased. Also, lint recovery due to fabric damage can be proportionally increased. Further, by making the circulating water amount of the lint filter 8 larger than the circulating water amount of the upper watering nozzle 25 and the halfway height watering nozzle 26, the upper watering nozzle 25 and the halfway height watering nozzle 26 are increased.
Since the amount of lint contained in the washing liquid from the laundry can be reduced, the rate of re-adhesion to clothing can be reduced.

Next, when the water level is low, the washing liquid level H
Of the washing water between the lower blade 11 and the water receiving tub 3 is pushed outward by centrifugal force due to the rotation of the lower blade 11 when the water flow reversal time is on. The water is poured into the washing and dewatering tank 22 from the lint filter 8, the upper sprinkling nozzle 25 and the halfway sprinkling nozzle 26 according to the rotation of the motor 13 through the circulation water passages 23a, 23b and 23c. However, even when the water level is low, sufficient washing liquid can be sprinkled from the upper part of the laundry through the water sprinkling nozzle 26 on the height, so that the washing power can be improved and the lint filter 8 can be circulated. Since the amount of water can be supplied, lint can be sufficiently recovered even at a low water level.

As described above, according to this embodiment, the lint recovery rate is improved and the solubility of the detergent is improved, so that the cleaning power can be improved and the washing time can be shortened. Entanglement can be suppressed.

(Embodiment 2) As shown in FIG. 6, circulating water channel covers 21a, 21b and 21c are provided on the inner wall of the washing / dewatering tub 22, and a circulating water channel 23
a, 23b, 23c are formed, and the protruding amounts L1, L2, L3 of the washing and dewatering tub 22 are set to L1>L2> L3 to change the cross-sectional areas of the circulation waterways 23a, 23b, 23c, The circulating water volume is adjusted. Other configurations are the same as those in the first embodiment.

The operation of the above construction will be described. The amount of protrusion L1, L2, L3 of the washing / dewatering tub 22 inward is represented by L1.
>L2> L3, the circulation channels 23a, 23b,
By adjusting the circulating water amount by changing the cross-sectional area of 23c, the circulating water amount of the lint filter 8 is made larger than the circulating water amount of the upper watering nozzle 25 and the height watering nozzle 26, so that the amount of generated bubbles can be reduced. The water flow can be set to a strong water flow. Therefore, it is possible to secure the amount of shower from the upper watering nozzle 25 and the watering nozzle 26 on the way to the height, to sufficiently immerse the washing liquid in the upper laundry, and to improve the movement of the laundry.

Further, by changing the amount of protrusion L1, L2, L3 to the inside of the washing and dewatering tub 22, it is possible to change the pressure on the cloth when the cloth is rotated during washing, and with a certain pressure, the pressure on the cloth during rotation is changed. Although there is no change in the rotation of the cloth, it is possible to change the rotation of the cloth by changing the amount of protrusion, and it is possible to further improve the detergency and shorten the washing time.

In the case of a low water level, since there is a large difference in height from the washing liquid level H to the upper sprinkling nozzle 25, the washing liquid between the lower blade 11 of the pulsator 10 and the water receiving tank 3 has When the reversal time is turned on, the lower blades 11 are pushed outward by centrifugal force due to the rotation of the lower blades 11 and the circulation water passages 23a, 23
b, 23c, is poured into the washing and dewatering tub 22 from the lint filter 8, the upper watering nozzle 25, and the middle watering nozzle 26 according to the rotation of the motor 13, but when the off-time of the reversal time of the water flow becomes longer, Circulation channels 23a, 23b, 23
Since the water surface in c is lowered, in the case of a low water level, the on-time of the inversion time of the water flow for suppressing the bubble speed and the bounce of bubbles can be reduced.

For this reason, when the next water flow reversal time period is turned on, the inner water surface of the circulation water passages 23a and 23b cannot be easily raised. Therefore, the time period of the off time is suppressed to 1 second or less, and thus the circulation water passages 23a, 23b and 23c are reduced. The lowering of the water level in the inside can be suppressed, and the washing liquid can be effectively supplied to the nozzle 26 and the lint filter 8 on the way of the washing liquid. The shower effect and the circulation effect can be improved even at a low water level, and the washing effect and the lint performance can be improved. Can be improved.

Here, even if sufficient circulating water does not reach the upper sprinkling nozzle 25, the circulating water amount of the washing liquid can be sufficiently maintained by the sprinkling nozzle 26 on the way, and the washing liquid is always applied to the laundry. Thus, washing can be performed without giving the user distrust of uneven washing.

(Embodiment 3) As shown in FIG. 7, the washing and dewatering tub 22 has an entrance 27 to the circulation channels 23a, 23b and 23c, and the opening area is changed by changing the width D of the entrance 27. And the opening area of the circulating water channel 23a> the opening area of the circulating water channel 23b> the opening area of the circulating water channel 23c, whereby the amount of circulating water in the circulating water channels 23a, 23b and 23c is adjusted. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. By setting the opening area of the circulation channel 23a> the opening area of the circulation channel 23b> the opening area of the circulation channel 23c,
a, 23b, and 23c, the amount of circulating water can be adjusted, and the amount of circulating water of the lint filter 8 can be made larger than the amount of circulating water of the upper sprinkling nozzle 25 and the halfway height sprinkling nozzle 26.
The generation amount of bubbles can be reduced, and the water flow can be set to a strong water flow. Therefore, it is possible to secure the amount of shower from the upper watering nozzle 25 and the watering nozzle 26 on the way to the height, to sufficiently immerse the washing liquid in the upper laundry, and to improve the movement of the laundry.

Further, the degree of protrusion of each of the circulation channels provided on the inner wall of the washing and dewatering tub 22 can be made constant, the rotation of the cloth at the time of washing is made regular, and the balance of the laundry before dehydration is started. By improving the vibration, vibration during dehydration can be reduced.

(Embodiment 4) As shown in FIGS. 1 and 2, the amount of circulating water in each of the circulating channels is determined by changing the circulating channel (the lint filter channel) 23a to the circulating channel (the upper watering nozzle channel).
3b and circulating waterway (heightway watering nozzle waterway) 23c
The amount is set to be larger, and the slit height S2 of the opening of the water sprinkling nozzle in the middle is higher than the slit height S1 of the opening of the upper watering nozzle 25. Other configurations are the same as those of the first embodiment.
Is the same as

The operation will be described in the above configuration. When the water level is medium or lower, since the slit height S1 is reduced from the upper watering nozzle 25, the water pressure becomes high even if the amount of circulating water is small. The shower flies almost to the center of the dewatering tub 22. On the other hand, from the halfway watering nozzle 26, since the slit height S2 is increased, the water pressure is low even if the amount of circulating water is large, the shower distance can be suppressed, and a well-balanced shower can be created. Yes, the washing liquid can be poured over the whole laundry, so that it can be evenly cleaned and rinsed.

At a lower water level, a sufficient amount of circulating water can be secured by the water spray nozzle 26 on the way to the height.
Conversely, the agitation force can be reduced, and the lint can be reduced by reducing the damage to the cloth, thereby reducing lint adhesion.

In each of the above-described embodiments, the so-called dehydrating / washing machine in which the washing and dewatering tub 4 is rotatably disposed in the water receiving tub 3 has been described. The two-tub washing machine can also be configured in the same manner, and the same operation and effect can be obtained.

[0044]

As described above, according to the first aspect of the present invention, the pulsator disposed rotatably on the bottom of the washing tub, the motor for driving the pulsator, and the back of the pulsator A plurality of circulation channels independently provided from the pump chamber formed on the outer periphery of the lower blade provided to the upper portion of the washing tub, and an opening toward the inside of the washing tub above the plurality of circulation water channels. A sprinkling nozzle and a lint filter, and an operation control device for controlling the reversal time and energization of the motor are provided. It was set up at different levels, and the amount of circulating water in each circulating channel was increased by the lint filter channel, then by the upper sprinkling nozzle channel, and the sprinkling nozzle channel on the way to the height was reduced to a small amount. Pour rinsing water and rinse water into the laundry from above, and increase the amount of circulating water in the washing liquid while increasing the amount of circulating water in the lint filter channel from the watering nozzle channel, thereby re-creating lint (filt) due to fabric damage. By reducing the adhesion rate, the recovery rate can be improved, and by improving the solubility of the detergent, the cleaning power can be improved, the washing time can be shortened, and cloth damage and cloth entanglement can be suppressed.

According to the second aspect of the present invention, the amount of circulating water in the plurality of circulating channels is adjusted by the cross-sectional area of the circulating channels, so that the plurality of circulating channels provided on the inner wall of the washing tub project. By changing the degree, it is possible to change the pressure on the cloth when the cloth is rotated during washing, and it is possible to further improve the detergency and shorten the washing time.

According to the third aspect of the present invention, the amount of circulating water in the plurality of circulating water channels is adjusted by the opening area of the entrance from the pump chamber to the circulating water channels. By making the degree of protrusion of the circulating water channel constant, the balance at the time of washing can be improved, and vibration can be reduced.

According to the fourth aspect of the present invention, the amount of circulating water in the plurality of circulating water channels is set such that the lint filter water channel is larger than the watering nozzle water channel and the opening of the middle watering nozzle is higher than the opening of the upper watering nozzle. Because the slit height of the section is made large, a well-balanced shower is possible at a position where the water level is medium or less, the washing liquid can be poured all over the laundry, the dirt can be evenly removed and rinsed become. Conversely, the stirring power can be reduced, the damage to the cloth can be reduced, and the lint can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a washing machine according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a state where a washing tub of the washing machine is rotated by 180 degrees.

FIG. 3 is an exploded perspective view of a main part of the washing machine.

FIG. 4 is a diagram showing a dissolution characteristic of a detergent in the washing machine.

FIG. 5 is a washing characteristic diagram of the washing machine.

FIG. 6 is a cross-sectional view of a washing tub of a washing machine according to a second embodiment of the present invention.

FIG. 7 is an exploded perspective view of a washing machine according to a third embodiment of the present invention, with a portion cut away.

FIG. 8 is a longitudinal sectional view of a conventional washing machine.

FIG. 9 is an exploded perspective view of a main part of the washing machine.

FIG. 10 is an enlarged sectional view of a main part of the washing machine.

[Explanation of symbols]

 Reference Signs List 8 lint filter 10 pulsator 11 lower blade 12 pump room 13 motor 19 operation control device 22 washing and dewatering tub (washing tub) 23a circulating water channel (lint filter water channel) 23b circulating water channel (upper sprinkling nozzle water channel) 23c circulating water channel (high) Sprinkling nozzle waterway in the middle) 24a Opening 24b Opening 24c Opening 25 Upper watering nozzle (watering nozzle) 26 Watering nozzle in the middle of height (watering nozzle)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Junji Kamiya 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. A pulsator rotatably disposed on a bottom surface of a washing tub, a motor for driving the pulsator, and a pump chamber formed on an outer periphery of a lower blade provided on a back surface of the pulsator. A plurality of circulating water channels independently provided up to the upper part, a watering nozzle and a lint filter provided in an opening toward the inside of the washing tub above the plurality of circulating water channels, and controlling a reversal time and energization of the motor. Operation control device, the lint filter is provided at a plurality of openings, and the sprinkling nozzle is provided at a height difference between the upper part and the side wall of the washing tub, and the amount of circulating water in each circulating water path is increased in the lint filter water path. A washing machine having an upper watering nozzle waterway and a small watering nozzle waterway in the middle of the height. 2. The washing machine according to claim 1, wherein the amount of circulating water in the plurality of circulating water channels is adjusted by the cross-sectional area of the circulating water channels. 3. The washing machine according to claim 1, wherein the amount of circulating water in the plurality of circulating water channels is adjusted according to the opening area of the entrance from the pump chamber to the circulating water channels. 4. The circulating water volume of the plurality of circulating water channels is such that the lint filter water channel is larger than the watering nozzle water channel, and the slit height of the middle watering nozzle opening is higher than the upper watering nozzle opening. The washing machine according to 1.