JP3385797B2 - Washing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing laundry by spraying a washing liquid on laundry in a washing tub.

[0002]

2. Description of the Related Art A conventional washing method will be explained by taking a pulsator-type washing machine as an example. After putting clothes in a washing / dehydrating tank having a pulsator at the bottom, a predetermined amount of water and detergent are put. Then, by rotating the pulsator, the clothes and the detergent solution are stirred, and the stains are removed by the friction between the clothes and the friction between the clothes and the inner wall of the washing / dehydrating tank and the pulsator.

[0003]

In such a conventional pulsator-type washing machine, depending on the type of clothing, fluffing or fraying of the clothing surface due to friction, or stretching or deformation of the clothing due to entanglement between the clothing may damage the clothing. It had a problem that it would end up.

Further, in order to remove stains evenly from the laundry, a sufficient amount of washing liquid is required so that the entire laundry can be immersed in the washing liquid, and a large amount of water and detergent have been used.

[0005] The present invention is intended to solve the above problems, location-out in the washing濯物laundry mounting on the net, the discharge port is substantially horizontal direction
Long slit-like shape with notches at both ends to prevent the laundry from being directly agitated by the rotation of the pulsator, and to add washing water (washing liquid or rinsing liquid) to the washing tub Spread along the line and discharge, then pour over the laundry
It is possible to remove the dirt, pour it over the laundry on the net from the top, and pass the washing water inside the laundry to clean the clothes evenly with a small amount of water without damaging the clothes. The first purpose is to realize a eco-friendly detergent.

A second object of the present invention is to uniformly pour the wash water over the entire laundry by sequentially changing the discharge distance of the wash water (washing liquid or rinsing liquid).

Further, according to the present invention, by changing the discharge amount and the number of discharges of the wash water (washing liquid or rinsing liquid),
The third purpose is to realize a detergent dissolution process and a foaming suppression process.

[0008]

In order to achieve the first object, the present invention provides a pulsator arranged at the inner bottom of a washing / dehydrating tub having an upper opening, and a pump for rotating the pulsator. a water circulation passage for guiding the washing water to the middle side wall height of the washing and dewatering tank by the action, a discharge port for ejecting the washing water is provided in the upper part of the water circulation passage in the washing and dewatering in the water tank, the washing and Almost water in the height direction of the side wall of the dehydration tank
And a net for placing laundry on the flat surface,
Is formed in a slit shape that is long in the horizontal direction, and
Continuously wrap around the rear part of the circulation channel at both ends of the discharge port.
As described above, the cutout portion is provided, and the wash water discharged from the discharge port in a substantially horizontal direction is almost the same as the laundry placed on the net.
Discharging so as to cover it from both ends of the discharge port
The first problem solving means is that the cleaning water to be discharged is configured to be discharged along the washing / dehydrating tank .

In order to achieve the second object,
Order Tsugimi of rows and a plurality of different-Do that rotation on a timed pulsator
And, discharging the form of wash water to be discharged from the discharge port to the substantially horizontal direction
From the vicinity of the discharge port to the entire area of the washing and dehydrating tub
A second means for solving the problems is to make it possible to sprinkle and to supply the washing water over the entire washing / dehydrating tub.

Further, in order to achieve the third object,
In the first half of the washing time, shorten the off time of the pulsator, and after
The third is to set a long off time as a third means for solving the problem.

[0011]

According to the first means for solving the above problems , the present invention provides:
Location-out in the laundry laundry mounting on the net, the discharge port is substantially horizontal
It has a slit shape that is long in the direction and has notches at both ends.
By kicking it, laundry is prevented from being agitated directly by the rotation of the pulsator, and ejecting the washing water (washing water or rinsing solution) spread along the washing tub, the entire laundry
It is possible to pour into the laundry, and by pouring the whole laundry on the net from above, washing water can be passed inside the laundry to clean and rinse clothes without damaging them.

Further, according to the second means for solving the problems, a plurality of rotation periods of different pulsators are provided, and the discharge distance of the washing water (washing liquid or rinsing liquid) is sequentially changed, so that the washing water is spread over the entire laundry. You can evenly pour, evenly clean and rinse.

According to the third means for solving the problems, a plurality of combinations of rotation time limits of a plurality of different pulsators are provided, and the discharge amount and the number of discharges of the washing water (washing liquid or rinsing liquid) are changed, whereby the discharge amount, By increasing the number of discharges and increasing the circulation amount, it is possible to realize a process that promotes detergent dissolution, and by reducing the discharge amount and the number of discharges and suppressing the circulation amount, it is possible to realize a process that suppresses foaming. .

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.

As shown in the drawing, the outer frame 1 of the washing machine has a water receiving tub 3 suspended therein by a suspension rod 2. A washing / dehydrating tub (hereinafter referred to as a washing tub) 4 is rotatably arranged in the water receiving tub 3, and a pulsator 5 is rotatably arranged at the bottom of the washing tub 4. The motor 6 drives the pulsator 5 and the washing tub 4 via the V belt 7 and the speed reduction mechanism 8. A pump chamber 10 is formed on the outer peripheral portion of the back blade 9 of the pulsator 5, and washing water (washing liquid or rinsing liquid) in the washing tub 4 is washed from the pump chamber 10 via the circulating water passage 11. Discharge port 1 formed in the height direction of tank 4
Send to 2.

The operation of the above structure will be described. After the laundry, a predetermined amount of water and detergent are put into the washing tub 4, the operation is started. Thus, the motor 6 is driven, rear vanes 9 pulsator 5 and pulsator 5 is rotating through the V-belt 7 and the reduction mechanism 8, the laundry and washing liquid in the washing tub 4 is agitated, The laundry is washed. On the other hand, the rotation of the back blade 9 of the pulsator 5 causes the washing liquid in the washing tub 4 to be sent from the pump chamber 10 to the circulating water passage 11.
The washing liquid sent to the circulation water passage 11 is sent to the discharge port 12 provided in the middle of the washing tub 4 in the height direction, and the washing liquid is discharged so as to spread over a wide range of the washing tub 4, and the laundry is evenly distributed. Pour the washing liquid.

This discharge mode will be described in more detail. By repeating the rotation and stop of the pulsator 5, the washing liquid discharged from the discharge port 12 is urged from the start of rotation of the pulsator 5 to the end of rotation thereof. Will change. That is, the falling position of the washing liquid discharged from the discharge port 12 with respect to the water surface in the washing tub 4 moves in the radial direction of the washing tub 4, and as a result, the washing liquid is sprayed over the water surface in the washing tub 4 over a wide range. The laundry liquid can be evenly poured into the laundry.

[0018]

As described above, according to the present embodiment, the washing liquid is sprinkled over a wide area of the washing tub 4 so that the washing liquid is evenly poured over the entire laundry, so that the water level during washing is low. However, since the washing liquid can be continuously poured into the laundry above the water surface, it is possible to realize water saving and detergent saving without causing uneven washing.

In the above embodiment, the washing process of discharging the washing liquid from the discharge port 12 has been described. However, by discharging the rinsing liquid from the discharge port 12 in the rinsing process, the rinsing liquid is spread over the entire laundry. Pour it out evenly,
You can evenly rinse.

Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the net 13 is for placing laundry thereon, and is detachably arranged on the side wall of the washing tub 4.

The operation of the above structure will be described. The laundry is set on the laundry loading net 13, and then a predetermined amount of water and detergent are added, and the operation is started.
As a result, the motor 6 is driven, and the pulsator 5 and the pulsator 5 are driven via the V-belt 7 and the reduction mechanism 8.
The back blade 9 of this rotates. The rotation of the back blade 9 of the pulsator 5 causes the washing liquid in the washing tub 4 to be sent from the pump chamber 10 to the circulating water passage 11.

The washing liquid sent to the circulating water channel 11 is sent to the discharge port 12 provided in the middle of the washing tub 4 in the height direction,
To cover the opening of the washing tub 4 over a wide area,
The washing liquid is discharged, and the washing liquid set on the laundry placing net 13 is evenly poured. On the other hand, since the laundry is partitioned from the pulsator 5 by the laundry loading net 13, the laundry is not directly agitated by the rotation of the pulsator 5.

The washing liquid above the pulsator 5 is forcibly sent to the outside from the center of the washing tub 4 via the upper surface of the pulsator 5 by the rotation of the pulsator 5. Therefore, a water flow is generated from the upper part of the central part of the washing liquid surface to the lower part. Like this pulsator 5
By the rotation of, the washing liquid is supplied from above to the laundry on the upper surface of the laundry loading net 13, and the inside of the laundry is forcibly passed by the water flow from above to below.

As described above, according to this embodiment, the washing liquid is sprinkled over a wide area of the washing tub 4,
By pouring the washing liquid from above onto the entire laundry set on the laundry placing net 13 and forcing the washing liquid to pass through the inside of the laundry, it is possible to remove dirt without damaging the laundry. it can.

In the above embodiment, the washing process for discharging the washing liquid from the discharge port 12 has been described. However, by discharging the rinse liquid from the discharge port 12 in the rinsing process, the rinse liquid can be placed on the laundry. It is possible to rinse the laundry evenly by pouring it over the entire laundry set on the net 13 and forcing the rinse liquid to pass through the inside of the laundry.

Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted.

As shown in the drawing, 14 is a pulsator 5
The water level at the time of rotation is positioned between the laundry loading net 13 and the discharge port 12 in the height direction.

The operation of the above structure will be described. The laundry is set on the laundry loading net 13, and then a predetermined amount of water and detergent are added and the operation is started.
As a result, the motor 6 is driven, and the pulsator 5 and the pulsator 5 are driven via the V-belt 7 and the reduction mechanism 8.
The back blade 9 of this rotates. The rotation of the back blade 9 of the pulsator 5 causes the washing liquid in the washing tub 4 to be sent from the pump chamber 10 to the circulating water passage 11.

The washing liquid sent to the circulating water passage 11 is sent to the discharge port 12 provided in the height direction of the washing tub 4,
To cover the opening of the washing tub 4 over a wide area,
The washing liquid is discharged, and the washing liquid set on the laundry placing net 13 is evenly poured. On the other hand, since the laundry is partitioned from the pulsator 5 by the laundry loading net 13, the laundry is not directly agitated by the rotation of the pulsator 5.

The washing liquid on the upper part of the pulsator 5 is forcibly sent to the outside from the center of the washing tub 4 via the upper surface of the pulsator 5 by the rotation of the pulsator 5. Therefore, a water flow is generated from the upper part of the central part of the washing liquid surface to the lower part. Like this pulsator 5
By the rotation of, the washing liquid is supplied from above to the laundry on the upper surface of the laundry loading net 13, and the inside of the laundry is forcibly passed by the water flow from above to below.

As described above, according to this embodiment, the washing liquid is sprinkled over a wide area of the washing tub 4,
By pouring the laundry liquid over the entire laundry set on the laundry loading net 13 and forcing the laundry liquid to pass through the inside of the laundry, the laundry liquid is not damaged and the laundry liquid is Since it can be used efficiently, it is possible to remove stains even with a small amount of water and realize water-saving and detergent-saving.

In the above embodiment, the washing process for discharging the washing liquid from the discharge port 12 has been described. However, by discharging the rinse liquid from the discharge port 12 in the rinsing process, the rinse liquid can be placed on the laundry. It is possible to rinse the laundry evenly by pouring it over the entire laundry set on the net 13 and forcing the rinse liquid to pass through the inside of the laundry.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 4 to 6. The same components as those in the first to third embodiments are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIGS. 4 and 5, the discharge port 15
Has a slit shape that is long in the substantially horizontal direction.
In 5, the upper wall is configured by the upper end of the waterway component 16a, and the lower wall is configured by the upper end of the waterway component 16b. As shown in FIG. 6, the water channel component 16 a is configured to extend along the side wall of the washing tub 4.

As described above, according to this embodiment, the discharge port 15
Has a slit shape that is long in the horizontal direction, so that the washing water (washing liquid or rinsing liquid) can be spread horizontally and discharged, making it possible to pour the washing water over the entire laundry It can be cleaned without any dirt and rinsed.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 7 to 9. The same components as those in the first to third embodiments are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIGS. 7 and 8, the discharge port 17
Has a slit shape that is long in the substantially horizontal direction, and the opening size of the central part in the vertical direction is c and the opening size of the left and right ends is d.
Then, d is larger than c. The discharge port 17 has an upper wall composed of the upper end of the water channel component 18a,
The lower wall is constituted by the upper end of the water channel component 18b.

As described above, according to this embodiment, the discharge port 17
Is a slit shape that is long in the horizontal direction, and the discharge pressure is low and the discharge amount is small. By making the opening size of the end portion wider than the central portion, the discharge amount can be made uniform over the entire discharge port 17, (Laundry liquid or rinsing liquid) can be spread and discharged, and it can be poured into the entire laundry, and stains can be uniformly removed and rinsed.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. 10 to 12. The same components as those in the first to third embodiments are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIGS. 10 and 11, the discharge port 19 has a slit shape that is long in the substantially horizontal direction. The upper wall is formed by the upper end of the water channel component 20a, and the lower wall is the water channel component 20b. It consists of the upper end of. Waterway component 20
Notches 20c are provided at both ends of a.

As described above, according to this embodiment, the discharge port 19
Has a slit shape that is long in the substantially horizontal direction, and by providing notches 20c at both ends, cleaning water (washing liquid or rinsing liquid) discharged from both ends can be discharged along the washing tub 4. By spreading the wash water over the entire surface of the washing tub 4 and discharging it, it is possible to pour the washing water over the entire laundry, and evenly clean and rinse the clothes.

Next, a seventh embodiment of the present invention will be described with reference to FIG.

FIG. 13 shows the rotation-on time of the pulsator 5 and the form of discharge of cleaning water from the discharge port 12. When the rotation ON time of the pulsator 5 is 0.8 seconds or more, the wash water (washing liquid or rinsing liquid) is sprayed so as to be sprayed over almost the entire surface of the washing tub 4 of the washing tub 4. The shorter the on-time, the shorter the ejection distance.

As described above, according to this embodiment, by controlling the rotation time limit of the pulsator 5, it is possible to change the discharge mode of the cleaning water.

Next, an eighth embodiment of the present invention will be described with reference to FIG.

FIG. 14 shows an example in which the pulsator 5 has a plurality of different rotation time periods. Rotation on time is 0.
Combined with 2 seconds, 0.4 seconds and 1.0 seconds. As shown in FIG. 13, the rotation ON time of the pulsator 5 and the form of discharge of the cleaning water from the discharge port 12 are as shown in FIG.
Dispense in the center of the washing tub in 0.4 seconds, and in the entire washing tub in 1.0 seconds. By repeatedly performing these in sequence, wash water (washing liquid or rinsing liquid) can be supplied over the entire washing tub 4.

As described above, according to this embodiment, since the pulsator 5 has a plurality of different rotation time periods, the discharge distance of the wash water is sequentially changed, and even the laundry in the central part of the washing tub or near the discharge port can be washed. Sufficient water can be supplied to clean and evenly wash laundry.

Next, a ninth embodiment of the present invention will be described with reference to FIG.

As shown in the figure, in the first half of the washing time, the off time of the pulsator 5 is shortened to increase the number of discharges, the circulation amount is increased to speed up the dissolution of the detergent, and the washing liquid is sufficiently delivered to the laundry. Let it pass. In the latter half of the washing time, by increasing the off time to reduce the number of discharges and suppressing the circulation amount,
The detergent works well on soiling of laundry and suppresses foaming.

As described above, according to the present embodiment, a plurality of combinations of rotation time limits of different pulsators are provided, and the circulation amount is increased by changing the discharge amount and the number of discharges of the washing liquid to dissolve the detergent. By suppressing the process to be accelerated and the circulation amount, the process to suppress foaming can be realized.

Next, a tenth embodiment of the present invention is shown in FIG.
From now on, description will be made with reference to FIG. In addition, the first
Those of the same configuration as Example omitted will be denoted by the same reference numerals.

As shown in FIG. 16 and FIG. 17, the circulating water channel 11 is composed of the water channel constituting member 21a and the water channel constituting member 21b, and the discharge port 22 has the upper wall formed at the upper end of the water channel constituting member 21a and the lower wall. Is formed at the upper end of the water channel component 21b. An upper end of the water channel component 21a has a curved surface that is continuous from the side wall of the washing tub 4, and is provided with a rounded roof portion 23. Further, as shown in FIG.
b also has a curved surface continuous from the side wall of the washing tub 4 and has a rounded shape.

Thus, according to this embodiment, the circulating water channel 1
When 1 has a curved surface that is continuous from the side wall of the washing tub 4 and has a rounded shape, the circulating water channel 11 can be prevented from hindering the cloth around the laundry and the cleaning performance can be maintained.

[0055]

As described above, according to the present invention, the pulsator provided at the inner bottom portion of the washing / dehydrating tub having an upper opening and the washing water by the pumping action of the pulsator when the pulsator is rotated. Side wall height of the washing and dewatering tub , and a discharge port for discharging the washing water toward the inside of the washing and dewatering tub.
A net is provided midway in the vertical direction for loading laundry, and the discharge port is formed in a slit shape that is long in the horizontal direction.
And a continuous circulation channel at both ends of its discharge port
A cutout is provided around the rear part of the
The cleaning water discharged from the mouth in a substantially horizontal direction is on the net.
Wherein while discharging the laundry is placed so as to substantially cover
The washing water discharged from both ends of the discharge port is stored in the washing and dehydrating tank.
Since it is configured to discharge like this, both ends of the discharge port
The washing water discharged from the washing tub runs along the washing tub,
It can be spread over almost the entire surface and discharged, so that it can be poured over the entire laundry.
It enables the Gukoto poured evenly from above the wash water throughout the laundry, can also constantly pour washing water to the laundry water level is above the water surface be low during washing laundry
Wash water without stirring directly with a pulsator
By forcibly passing the inside of the laundry
The dirt without damaging, Runode can be rinsed, washed unevenness, without causing the rinse irregularity, it is possible to realize water conservation, the section detergent.

[0056] In addition, several different that rotation o of the pulsator
The emission timing and order Tsugimi row, the entire surface of the washing and dewatering tank from around the outlet of the discharge mode of the washing water ejecting the substantially horizontal direction from the discharge port
The washing water is supplied to the entire washing and dehydrating tub so that the washing water can be sprayed over a wide range , and the washing water discharge distance can be changed in sequence to wash the washing water in the center of the washing tub or near the outlet. Sufficient washing water can be supplied to the laundry, and the laundry can be thoroughly cleaned and rinsed.

[0057] In addition, the first half of the washing time of the pulsator o
I set the off time longer and the off time longer in the latter half ,
By changing the discharge amount and the number of discharges of cleaning water, the discharge amount and the number of discharges are increased and the circulation amount is increased to realize a process of promoting detergent dissolution, and the discharge amount and the number of discharges are reduced to suppress the circulation amount. As a result, it is possible to realize a process of suppressing foaming.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional view of a washing machine according to a second embodiment of the present invention.

FIG. 3 is a vertical sectional view of a washing machine according to a third embodiment of the present invention.

FIG. 4 is a vertical sectional view of a washing machine according to a fourth embodiment of the present invention.

FIG. 5 is an enlarged front view of a circulating water channel of the washing machine.

FIG. 6 is an enlarged cross-sectional view taken along line AA of the circulating water channel of the washing machine.

FIG. 7 is a vertical sectional view of a washing machine according to a fifth embodiment of the present invention.

FIG. 8 is an enlarged front view of a circulating water channel of the washing machine.

FIG. 9 is an enlarged cross-sectional view of the circulating water channel of the washing machine taken along line BB.

FIG. 10 is a vertical sectional view of a washing machine according to a sixth embodiment of the present invention.

FIG. 11 is an enlarged front view of a circulating water channel of the washing machine.

FIG. 12 is an enlarged cross-sectional view taken along line C-C of the circulating water channel of the washing machine.

FIG. 13 is a diagram showing a rotation ON time and a cleaning water discharge form of a pulsator of a washing machine according to a seventh embodiment of the present invention.

FIG. 14 is a basic pattern diagram of the water flow of the washing machine according to the eighth embodiment of the present invention.

FIG. 15 is a basic pattern diagram of water flow of a washing machine according to a ninth embodiment of the present invention.

FIG. 16 is a vertical sectional view of a washing machine according to a tenth embodiment of the present invention.

FIG. 17 is an enlarged front view of a circulating water channel of the washing machine.

FIG. 18 is an enlarged cross-sectional view of the circulating water channel of the washing machine taken along line D-D.

[Explanation of symbols]

4 washing and dewatering tank 5 pulsator 11 Circulating waterways 12 outlets

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumio Ota 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-2-302298 (JP, A) JP-A-58- 97394 (JP, A) JP 7-8671 (JP, A) JP 7-59979 (JP, A) Actually opened 58-98081 (JP, U) Actually opened 58-98083 (JP, U) Actual development Sho 52-15876 (JP, U) Actual development Sho 54-174271 (JP, U) Actual development Sho 57-158472 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) D06F 39/08 D06F 37/12

Claims (3)

(57) [Claims] 1. A pulsator arranged at the inner bottom of a washing / dehydrating tub having an upper opening, and a circulation for guiding washing water to a middle of a side wall height of the washing / dehydrating tub by a pump action when the pulsator rotates. waterways and, a discharge port for ejecting the washing water is provided in the upper part of the water circulation passage in the washing and dewatering in the water tank, substantially horizontal in the middle in the height direction of the side wall of the washing and dewatering tank
And a net for placing a laundry provided, said discharge port
Form a slit that is long in the substantially horizontal direction and
At both ends of the outlet, it goes around to the rear part of the circulation channel continuously.
A notch is provided to discharge the washing water discharged from the discharge port in a substantially horizontal direction to wash the laundry placed on the net.
Discharge so as to cover and discharge from both ends of the discharge port.
A washing machine configured to discharge the wash water discharged along the washing and dehydrating tub . 2. A forward Tsugimi rows several different that rotation-on <br/> limit the pulsator washing the discharge mode of the washing water to be discharged from the discharge port to the substantially horizontal direction from the vicinity of the discharge port and dewatering Wide area of the entire aquarium
So that can befall over a range, washing machine of claim 1, wherein supplying the wash water throughout the washing and dehydrating tub. 3. The first half of the washing time is when the pulsator is off.
Between short and claim 1 or the second half was set long off time
Or the washing machine described in 2 .