JP3385772B2 - 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 which removes dirt by spraying a washing liquid on clothes while rotating a washing / dehydrating tub.

[0002]

2. Description of the Related Art Conventionally, a washing machine of a stirring type has been mainly used as a washing machine, and a representative example thereof is a pulsator type washing machine.
A predetermined amount of water and detergent are poured, and the pulsator is rotated to stir the clothing and water to act on the dirt of the clothing while dissolving the detergent and to rub between the clothing or to wash the clothing and the laundry. Also, the dirt was removed by rubbing against the inner wall surface of the dehydration tank and the surface of the pulsator.

[0003]

SUMMARY OF THE INVENTION In such a conventional washing machine using a stirring method, the clothing surface is fluffed, frayed, or entangled and stretched due to friction depending on the type of clothing. It had the problem of causing damage. Further, when the stirring force is weakened to reduce the frictional force of the clothes, there is a problem that sufficient washing performance cannot be ensured. Further, from the viewpoint of resource saving and energy saving such as water saving and detergent, in a pulsator type washing machine, it depends on the amount of clothes, but it corresponds to about 40 to 60 liters of water in one washing and the amount of water. There is a problem that a predetermined amount of detergent is required, and a large amount of water of about 120 liters to 180 liters is required when the rinse step is included.

The present invention is to solve the above problems. First, it is necessary to remove stains with a very small amount of water and detergent and to rinse the clothes without stirring and damaging the clothes.
The purpose is.

A second object is to wash and rinse with a very small amount of water without damaging the clothes.

[0006]

In order to achieve the first object, the present invention rotates a water receiving tub having a holeless washing / dehydrating tub therein and the holeless washing / dehydrating tub. Drive means, water supply means for supplying tap water into the holeless washing / dehydrating tub, circulation means for circulating washing liquid or rinsing liquid in the water receiving tub, the drive means, the water supply means, and the circulation And a control means for controlling the operation of the means, wherein the control means controls the rotation speed of the holeless washing / dehydrating tub repeatedly by the driving means in the washing process or the rinsing process, and the rotation means controls the rotation speed of the holeless washing / dehydrating tub to rotate. The circulating liquid is supplied to the clothes in the holeless washing / dehydrating tub, and the high rotation speed is set so that the washing liquid or rinse liquid in the holeless washing / dehydrating tub is above the holeless washing / dehydrating tub. Beyond the water receiver It is set higher than the rotation speed to move to the bath, before
Serial garment, the circulating liquid is supplied in the low rotation, the
The first problem solving means is that the circulating liquid is supplied and discharged at a high rotation speed .

Further, in order to achieve the second object, the control means, during the washing process, the holeless washing / dehydrating tub is repeatedly controlled by the driving means so that the number of rotations of the washing / dehydrating tank is controlled by the circulating means to rotate the holeless washing / dewatering tub without rotation of the hole. The washing liquid is supplied to the clothes in the washing / dehydrating tub, and at the high rotation speed, the washing liquid in the holeless washing / dehydrating tub exceeds the upper portion of the holeless washing / dehydrating tub to receive the water. In the rinsing step after the washing step is completed, the rotation speed is set higher than that of the first step, and the rinsing and dehydration tub without holes is rotated at a low speed to supply the rinsing liquid to the clothes by the circulation means, and the first step. After the end of the step, the supply of the rinse liquid is stopped, and the second step in which the holeless washing / dehydrating tank is rotated at a rotation speed higher than the rotation speed in the first stroke is repeatedly performed, And second
Rotational speed of the stroke, that rinse of the hole without washing and dewatering in the water tank is set higher than the rotational speed to move to the water receiving tank beyond the top of the hole without the washing and dewatering tank second means for solving problems I am trying.

In order to achieve the second object, the control means includes a first step of rotating the holeless washing / dehydrating tub at a low speed in the washing step to supply the washing liquid to the clothes by the circulating means, After the completion of the first step, the supply of the washing liquid is stopped, and the second step of rotating the holeless washing / dehydrating tub at a rotation speed higher than the rotation speed of the first stroke is repeated. And the rotation speed of the second stroke is set higher than the rotation speed at which the washing liquid in the holeless washing / dehydrating tub moves over the top of the holeless washing / dehydrating tub to the water receiving tub, In the rinsing step after the end, the rinsing liquid is supplied to the clothes in the holeless washing / dehydrating tub by the circulating means while rotating the rotation speed of the holeless washing / dehydrating tub by repeatedly controlling the rotation speed of the driving means. And, the high rotation speed is without the hole That rinse濯兼de water tank is set higher than the rotational speed to move to the water receiving tank beyond the top of the hole without the washing and dewatering tank has a third means for solving problems.

[0009]

According to the first means for solving the above problems, the present invention provides:
When the washing liquid is circulated by the circulation means, the washing liquid is supplied at the time of low-speed rotation in which the centrifugal force applied to the clothes is weak, so that the supplied washing liquid is hydrated in the clothes, and dirt of the clothes is taken in during this. After that, by increasing the centrifugal force applied to the clothes as a high-speed rotation, the washing liquid containing the dirt is discharged from the clothes. At this time, the rotation speed of the holeless washing / dehydrating tank is the washing speed in the holeless washing / dewatering tank. Since the speed of the liquid is set higher than the speed at which the liquid goes over the upper part of the hole-less washing / dehydrating tub to the water receiving tub, the washing liquid can be circulated.

By repeating this, dirt can be removed with a small amount of washing liquid without rubbing between clothes. When the rinsing liquid is circulated by the circulation means, it is possible to rinse with a small amount of rinsing liquid without rubbing between clothes in the same manner as described above.

According to the second means for solving the problems, in the washing process, the washing liquid supplied at the time of low-speed rotation in which the centrifugal force applied to the clothes is weak is hydrated in the clothes, the dirt of the clothes is taken in during this, and then the clothes are rotated at the high speed. As a result, the washing liquid containing the dirt is discharged from the clothes and the washing liquid is circulated. By repeating this, it is possible to remove the dirt with a small amount of the washing liquid without rubbing between the clothes, and also in the rinsing process. Then, separate the process of taking in the detergent remaining in the clothes into the rinse liquid and the process of discharging the rinse liquid containing the detergent, and operate the circulation means of the rinse liquid efficiently when the detergent is taken in. By doing so, you can save energy and rinse.

Further, according to the third means for solving the problems, in the washing process, the step of taking dirt into the washing liquid and the step of discharging the washing liquid taking in the dirt are separated, and when the dirt is taken in, the efficiency is improved. By operating the washing liquid circulation means, it is possible to remove dirt with energy saving. Also, in the rinsing process, since the rinsing liquid is supplied at low speed rotation when the centrifugal force applied to the clothes is weak, the rinsing liquid is supplied. The liquid is hydrated in the clothes, and the detergent remaining in the clothes is taken in during this, and then the high-speed rotation removes the rinse liquid containing the detergent from the clothes and circulates the rinse liquid, and by repeating this, the clothes are rubbed against each other. Without
And it can be rinsed with a small amount of rinse.

[0013]

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

As shown in FIG. 1, the washing machine outer frame 1 suspends a water receiving tub 3 by four suspension bars 2. Washing and dewatering tank without holes (hereinafter referred to as washing tank) 4 is a water receiving tank 3
Inside the washing tub 4, a stirring blade 5 is rotatably arranged. The motor (driving means) 6 drives the stirring blade 5 and the washing tub 4 via the V belt 7 and the speed reduction mechanism 8. The water supply means 13 supplies water into the washing tub 4 via the sprinkling nozzle 9, and the water level detection means 14 detects the washing water level in the water receiving tub 3. The drainage means 15 is
The washing water in the water receiving tub 3 and the washing tub 4 is drained. The control device 16 is provided on the upper surface of the washing machine body 1.

The circulation means 17 circulates the wash water in the water receiving tank 3, and the circulation pump 18 and the circulation pump 1
8 and the bottom of the water receiving tank 3, a first circulation path 19, a check valve 20 provided between the first circulation path 19 and the circulation pump 18, the circulation pump 18 and the washing tub The second circulation path 21 is connected to the water spray nozzle 9 provided on the upper part of the nozzle 4.

The control device 16 is constructed as shown in FIG. 2, and the control means 22 sequentially controls each process of washing, rinsing and dehydration based on the setting contents inputted by the operation display means 23. Then, the motor 6, the circulation pump 18, the water supply means 13, the drainage means 15, etc. are sequentially controlled via the power switching means 24. The storage unit 25 stores data necessary for the sequential control by the control unit 22. The cloth amount detecting means 26 detects the amount of laundry (clothes) in the washing tub 4, and inputs its output to the control means 22. Reference numeral 27 is a phase advancing capacitor for the motor 6, 28 is a power switch, and 29 is a commercial power source.

The control means 22 supplies the washing liquid to the clothes in the washing tub 4 by the circulation means 17 while controlling the rotation speed of the washing tub 4 repeatedly by the motor 6 to rotate the washing tub 4 at a high and low speed, and also at a high rotation speed. Is set higher than the number of rotations at which the washing liquid passes over the upper part of the washing tub 4 and moves to the water receiving tub 3.

The operation of the above structure will be described with reference to FIG. 3. The clothes and detergent are put into the washing tub 4 to start the operation. As a result, the water supply means 13 is activated and the washing tub 4
Water is supplied to the inside, and when the water level detecting means 14 detects a predetermined water level, the water supplying means 13 is stopped, the motor 6 is driven, and the washing tub 4 starts to rotate. The washing tub 4 is shown in FIG.
As shown in, the rotation speed is R1 (for example, 80 rpm)
When it reaches R2, the rotation speed is gradually increased by the on / off control of the motor 6, and when R2 (for example, 350 rpm) is reached, the motor 6 is turned off. When the rotation speed falls to R1, the on / off control of the motor 6 is performed again. Is controlled to repeat.

In this way, the centrifugal force is applied to the clothes by the rotation of the washing tub 4 and the clothes move to the outer peripheral portion of the washing tub 4, and when the rotation speed approaches R2, one of the washing water supplied to the washing tub 4 The part moves to the water receiving tub 3 over the upper part of the washing tub 4 by centrifugal force.

Then, when the number of rotations of the washing tub 4 first reaches R2, the circulation pump 18 starts to operate. By the operation of the circulation pump 18, the washing liquid at the bottom of the water receiving tub 3 passes through the first circulation path 19 and the check valve 20 and the circulation pump 1
8, the water is sprayed by the circulation pump 18 from the water spray nozzle 9 to the clothes on the lower side surface of the washing tub 4 via the second circulation path 21.

The washing liquid that has reached the clothes acts on the dirt of the clothes to take in the dirt into the washing liquid and is discharged from the clothes by the centrifugal force. That is, the supply of the washing liquid for taking in the dirt and the discharge of the washing liquid for taking in the dirt are performed with a slight time difference. On the other hand, the washing liquid discharged from the clothes by the centrifugal force and transferred to the water receiving tub 3 is sprayed from the upper part of the washing tub 4 by the circulation means 17 and can be used again for removing stains on the clothes.

In this way, a series of steps of supplying the washing liquid to the clothes, taking in the dirt into the washing liquid, discharging the washing liquid containing the dirt from the clothes, and supplying the washing liquid to the clothes by the circulation means 17 By repeating
The dirt on the clothes is taken into the washing liquid and the dirt is removed.

FIG. 4 is a diagram showing the relationship between the washing time and the stain removal performance of clothes in this embodiment. As shown in FIG. 4, the inventors have confirmed by experiments that stain removal proceeds with washing time. It has also been confirmed from FIG. 4 that the dirt removal performance is almost saturated at the time T of a predetermined washing time, and this time may be the end of the washing process.

As described above, according to the present embodiment, since the laundry is not agitated, there is no damage to the laundry, and the washing liquid only needs to be circulated, so that the laundry is washed with a small amount of water and a small amount of detergent. be able to.

In the above embodiment, the washing process in which the washing liquid is circulated has been described, but the rinsing process in which the rinsing liquid is circulated is performed in the same manner without rubbing between clothes and a small amount of rinsing liquid is used. You can do it right away.

Next, a second embodiment of the present invention will be described.

The control means 22 in FIG. 2 rotates the washing tub 4 at a low speed to supply the washing liquid to the clothes by the circulating means 17, and stops the supply of the washing liquid after the first step. Then, the washing tub 4 is configured to be repeatedly performed with a second step of rotating the washing tub 4 at a higher rotation number than the rotation number of the first step, and the rotation number of the second step is the washing speed in the washing tub 4. It is set higher than the rotation speed at which the liquid moves over the upper part of the washing tub 4 to the water receiving tub 3. The other structure is the same as that of the first embodiment.

FIG. 5A shows the relationship between the washing time and the rotation speed of the washing tub 4, and FIG. 5B shows the drive timing of the circulation pump 18. As shown in FIG. 5 (A), the control means 22 turns on the motor 6 at time T0 to rotate the washing tub 4 at the time T0, and at time T1, the rotation speed N1 (for example, 50 rpm). Motor 6
Is controlled to ON / OFF until the time T2, and the rotation speed is controlled to be approximately N1, and the current is continuously supplied from the time T2. When the rotation speed reaches N2 (for example, 350 rpm), the motor 6 is stopped. Then, the rotation speed rapidly decreases, and when it reaches N1 at time T3, the same control as from time T1 to time T3 is repeated from here. On the other hand, the circulation pump 26 is shown in FIG.
As shown in, the time T when the number of rotations of the washing tub 4 is around N1.
It is controlled to drive during the period from 3 to T4, the time from T5 to T6, ....

The operation of the above structure will be described. First, clothes and detergent are put into the washing tub 4 to start the operation.
As a result, the water supply means 13 operates, water is supplied into the washing tub 4, and when the water level detection means 14 detects a predetermined water level, the water supply means 13 stops, the motor 6 is driven, and the washing tub 4 rotates. Start doing. As shown in FIG. 5A, when the rotation speed of the washing tub 4 reaches N1 (50 rpm) at time T1, it is maintained at a substantially constant rotation speed until time T2 by the on / off control of the motor 6, and at time T2. Is continuously energized, the rotation speed increases, and when it reaches N2 (350 rpm), the motor 6 is turned off, and the rotation speed drops to N1 (time T
In step 3), the on / off control of the motor 6 is executed again for a predetermined time and the pattern of continuous energization is repeated.

In this way, the centrifugal force is applied to the clothes by the rotation of the washing tub 4 and the clothes move to the outer peripheral portion of the washing tub 4, and when the rotation speed approaches N2, a part of the washing water supplied to the washing tub 4 Is transferred to the water receiving tub 3 over the upper part of the washing tub 4 by centrifugal force. The washing liquid that has moved to the bottom of the water receiving tub 3 enters the circulation pump 18 via the first circulation path 19 and the check valve 20 from time T3 to T4, and the circulation pump 18 further causes the second Water is sprayed onto the clothes in the washing tub 4 from the water spray nozzle 9 via the circulation path 21.

From time T4 to T5, time T2 to T
As in the case of 3, the washing liquid that has taken in the dirt of the clothes by the centrifugal force moves over the upper part of the washing tub 4 to the water receiving tub 3. After time T5, the control from time T3 to T5 is repeatedly performed, and the washing liquid is circulated intermittently.

As described above, during the period from T3 to T4 when the rotation speed of the washing tub 4 is low, the water content of the washing liquid in the clothes gradually increases. That is, the clothes are put on by the washing liquid. For this reason, the amount of the washing liquid acting on the dirt increases, and the duration of the washing liquid acting on the dirt also increases. Then, when the rotation speed is increased from the low speed rotation N1 to the high speed rotation N2, the centrifugal force applied to the clothes is increased, so that the washing liquid containing the dirt is discharged over the upper part of the washing tub 4.

As described above, the rotation speed of the washing tub 4 is controlled to be high or low, the centrifugal force applied to the clothes is changed, and the washing liquid is supplied at a timing at which the circulation means 17 is efficiently operated. It becomes possible to realize energy saving.

In the above embodiment, the washing process in which the washing liquid is circulated has been described. However, in the rinsing process in which the rinsing liquid is circulated in the same manner, the clothes can be efficiently circulated without friction between the clothes. It can operate and save energy.

Next, a third embodiment of the present invention will be described.

In the washing process, the control means 22 in FIG. 2 supplies the washing liquid to the clothes in the washing tub 4 by the circulation means 17 while the motor 6 repeatedly controls the rotation speed of the washing tub 4 to control the rotation speed. In addition, the high rotation speed is set higher than the rotation speed at which the washing liquid in the washing tub 4 passes over the upper part of the washing tub 4 and is transferred to the water receiving tub 3, and the washing tub 4 is set in the rinsing process after the washing process. The first step of rotating at low speed to supply the rinsing liquid to the clothes by the circulation means 17, and the supply of the rinsing liquid is stopped after completion of the first step, and the washing tub 4 is rotated at the number of revolutions during the first step. The second stroke of rotating at a high rotation speed is repeated, and the rotation speed of the second stroke is such that the rinse liquid in the washing tub 4 exceeds the upper portion of the washing tub 4 and enters the water receiving tub 3. It is set higher than the rotating speed. The other structure is the same as that of the first embodiment.

The operation of the above structure will be described with reference to FIG. 6. In step 31, clothes and detergent are put into the washing tub 4, and in step 32, the operation is started. As a result, the water supply means 13 operates in step 33 to supply water into the washing tub 4, the water level detection means 14 detects the water level, and continues to supply water until a predetermined water level is reached, and when the predetermined water level is reached in step 34, step 35 Stop the water supply at the motor 6
Is driven and the washing tub 4 starts to rotate.

In the washing tub 4, the rotation speed n is R in step 37.
The motor 6 is turned on / off at step 36 until reaching 2, and the rotation speed is gradually increased to reach R2. At step 38, the circulation pump 18 is operated to apply the washing liquid to the clothes in the washing tub 4. Then, the motor 6 is turned off in step 39. When the number of revolutions decreases to R1 in step 40, the washing time is checked in step 41. If it has not reached 12 minutes, the process returns to step 36 to control the motor 6 to repeat the on / off control for a predetermined time. 12 minutes have passed, the circulation pump 18 is turned off in step 42, and the washing liquid is drained in step 43.

Next, in step 44, the water supply means 13 is activated to supply water into the washing tub 4, the water level detection means 14 detects the water level, and continues to supply water until a predetermined water level is reached, and when the predetermined water level is reached in step 45. In step 46, the water supply is stopped, the motor 6 is driven, and the washing tub 4 starts to rotate.

In the washing tub 4, the rotation speed n is N in step 48.
The motor 6 is on / off controlled in step 47 until reaching 1, and the rotation speed is gradually increased to reach N1. In step 49, the circulation pump 18 is operated to rinse the clothes in the washing tub 4 with the rinse liquid. Supply and rinse. When a predetermined time (30 seconds) has elapsed in step 50, the circulation pump 18 is turned off in step 51, and the motor 6 is continuously operated in step 52.

When the number of rotations reaches N2 in step 53,
When the motor 6 is turned off in step 54 and the rotation speed is reduced to N1 in step 55, the rinsing time is checked in step 56, and if it has not reached 5 minutes, step 47 is executed again.
Then, the on / off control of the motor 6 is repeated so that the rinsing liquid is drained in step 57 after a lapse of a predetermined time of 5 minutes.

Step 58 is the rinse step 2, and the same steps as steps 44 to 57 are repeated. Step 59 is a rinse step 3, and the same step as step 58 is repeated. After repeating the rinsing three times in this way, the whole process is completed by dehydrating in step 60.

As described above, according to the present embodiment, the amount of water required for one rinsing is about 12 liters, so the total amount of water used may be less than 50 liters, which is about one-third that of conventional water. The detergent is enough and there is almost no damage to the cloth.

In the washing step, the control means 22 rotates the washing tub 4 at a low speed to supply the washing liquid to the clothes by the circulating means 17, and after the first step, the washing liquid is discharged. The supply is stopped, and the washing tub 4 is configured to be repeatedly performed with a second step of rotating the washing tub 4 at a higher rotational speed than the rotational speed of the first stroke, and the rotational speed of the second step is the same as that of the washing tub 4 The washing liquid inside goes over the upper part of the washing tub 4 and the water receiving tub 3
The rotation speed of the washing tub 4 is set higher than that of the rinsing process, and the rinsing liquid is applied to the clothes in the washing tub 4 by the circulation means 17 while the motor 6 repeatedly controls the rotation speed of the washing tub 4 to control the rotation speed. The same operation and effect can be obtained even if the supply speed is set to be higher than the rotation speed at which the rinse liquid in the washing tub 4 passes over the upper portion of the washing tub 4 and is transferred to the water receiving tub 3. .

[0045]

As described above, according to the present invention, the water receiving tub having the holeless washing / dehydrating tub disposed therein, the driving means for rotating the holeless washing / dehydrating tub, and the holeless washing / dehydrating tub. A water supply means for supplying tap water into the tub, a circulation means for circulating the washing liquid or the rinse liquid in the water receiving tub, a drive means, the water supply means, and a control means for controlling the operation of the circulation means. The control means includes a washing process or a rinsing process.
In the process, the circulating means repeatedly controls the rotation speed of the holeless washing / dehydrating tub to rotate the same while rotating, and the circulating means supplies the circulating liquid to the clothes in the holeless washing / dehydrating tub. The high rotational speed is set higher than the rotational speed at which the washing liquid or rinsing liquid in the holeless washing / dehydrating tub moves to the water receiving tank over the upper portion of the holeless washing / dehydrating tub, and the clothes are Circulation at low speed
When the liquid is supplied and the circulating liquid is supplied at the high rotation speed,
Since it is configured to be discharged to the body, it is possible to remove stains with a very small amount of water and detergent without damaging the clothes, and rinse with a very small amount of water without damaging the clothes.

In the washing step, the control means repeatedly controls the rotation speed of the holeless washing / dehydrating tub by the driving means to rotate the same while rotating the rotation speed of the holeless washing / dehydrating tub to rotate the clothes. And the high rotation speed is set higher than the rotation speed at which the washing liquid in the holeless washing / dehydrating tub moves over the upper portion of the holeless washing / dehydrating tub to the water receiving tub for washing. In the rinsing step after the end of the step, a first step of rotating the washing-and-dehydrating tank without holes at a low speed to supply the rinsing solution to the clothes by the circulation means, and a supply of the rinsing solution after the first step is completed. And a second step in which the holeless washing and dehydrating tub is rotated at a higher rotational speed than the rotational speed in the first stroke, and the second rotational speed is The hole-less washing and dewatering tank Since the spine was set to be higher than the number of rotations at which it goes over the top of the holeless washing / dehydrating tank and is transferred to the water receiving tank, it is possible to remove dirt without damaging the clothes with a very small amount of water and detergent, and By activating the circulation means of the rinsing liquid efficiently when the residual detergent is taken in, it is possible to rinse with a small amount of rinsing liquid and save energy.

In the washing process, the control means rotates the holeless washing / dehydrating tub at a low speed to supply the washing liquid to the clothes by the circulation means, and after the first step, the washing process is performed. It is configured such that the supply of the liquid is stopped, the second step in which the holeless washing / dehydrating tank is rotated at a higher rotation speed than the rotation speed in the first stroke is repeated, and the rotation in the second stroke is performed. The number is set higher than the number of rotations at which the washing liquid in the holeless washing / dehydrating tub moves to the water receiving tub over the top of the holeless washing / dehydrating tub, and by the driving means in the rinsing step after the washing step. The circulation speed of the holeless washing / dehydrating tub is repeatedly controlled to rotate and the rinsing liquid is supplied to the clothes in the holeless washing / dehydrating tub by the circulation means, and the high rotational speed is the hole. None Rinsing liquid in the washing and dehydration tank is in front Since the rotation speed is set higher than the speed at which the washing and dehydration tub without holes goes over the water receiving tub, the washing liquid can be circulated and supplied at the timing of the rotation speed that effectively acts on the dirt, and the circulation means operates. The time can be shortened and energy can be saved to remove stains, and a small amount of rinse liquid can be used for rinsing.

[Brief description of drawings]

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

FIG. 2 is a block circuit diagram of the washing machine.

FIG. 3 is a time chart showing the rotation speed control of the washing tub of the washing machine.

FIG. 4 is a characteristic diagram of the washing performance of the washing machine.

FIG. 5 is a time chart showing the rotation speed control of the washing tub of the washing machine according to the second embodiment of the present invention.

FIG. 6 is an operation flowchart of the third embodiment of the present invention.

[Explanation of symbols]

3 water receiving tank Washing and dehydration tank without 4 holes 6 Motor (drive means) 13 Water supply means 17 Circulation means 22 Control means

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takayoshi Asakoshi, 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-58-18120 (JP, A) Actual development 52-3277 (JP, U) Actual publication 5-13350 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) D06F 33/02

Claims (3)

(57) [Claims] 1. A water receiving tub having a holeless washing / dehydrating tub provided therein, driving means for rotating the holeless washing / dehydrating tub, and tap water supplied into the holeless washing / dehydrating tub. Water supply means, circulation means for circulating the washing liquid or rinsing liquid in the water receiving tank, and a drive means, the water supply means and control means for controlling the operation of the circulation means, the control means, the washing means In the stroke or the rinsing step, the circulation means supplies the circulating liquid to the clothes in the holeless washing / dehydrating tub while the driving means repeatedly controls the rotation speed of the holeless washing / dehydrating tub to control the rotation speed. ,
And the high rotational speed, set higher than the rotational speed of the washing liquid or rinsing liquid in the hole without washing and dewatering in the water tank is passed to the water receiving tank beyond the top of the hole without the washing and dewatering tank, the clothes
At the low rotation speed, the circulating fluid is supplied and
A washing machine in which the circulating fluid is supplied and discharged when it is rotated. 2. A water receiving tub having a holeless washing / dehydrating tub provided therein, driving means for rotating the holeless washing / dehydrating tub, and tap water supplied into the holeless washing / dehydrating tub. Water supply means, circulation means for circulating the washing liquid or rinsing liquid in the water receiving tank, and a drive means, the water supply means and control means for controlling the operation of the circulation means, the control means, the washing means In the process, the driving means repeatedly controls the number of rotations of the holeless washing / dehydrating tub to control the level of rotation, and the circulating means supplies the washing liquid to the clothes in the holeless washing / dehydrating tub, and The high rotation speed is set higher than the rotation speed at which the washing liquid in the holeless washing / dehydrating tub moves to the water receiving tank over the upper part of the holeless washing / dehydrating tub, and in the rinsing process after the washing process is completed. ,
A first step of rotating the holeless washing / dehydrating tank at a low speed to supply a rinsing liquid to the clothes by the circulation means;
After the end of the step, the supply of the rinse liquid is stopped, and the second step in which the holeless washing / dehydrating tank is rotated at a rotation speed higher than the rotation speed in the first stroke is repeatedly performed, Further, the rotation speed of the second step is set higher than the rotation speed at which the rinse liquid in the holeless washing / dehydrating tub moves over the upper portion of the holeless washing / dehydrating tub to the water receiving tub. 3. A water receiving tub having a holeless washing / dehydrating tub provided therein, driving means for rotating the holeless washing / dehydrating tub, and tap water supplied into the holeless washing / dehydrating tub. Water supply means, circulation means for circulating the washing liquid or rinsing liquid in the water receiving tank, and a drive means, the water supply means and control means for controlling the operation of the circulation means, the control means, the washing means In the step, a first step of rotating the holeless washing / dehydrating tub at a low speed to supply the washing liquid to the clothes by the circulation means, and stopping the supply of the washing liquid after completion of the first step, The holeless washing / dehydrating tub is configured to be repeatedly performed with a second step of rotating at a higher rotational speed than the rotational speed of the first stroke, and the rotational speed of the second stroke is
The washing liquid in the holeless washing / dehydrating tub is set to be higher than the rotation speed at which the washing liquid passes over the upper portion of the holeless washing / dehydrating tub and is transferred to the water receiving tub. None The washing / dehydrating tub is configured to supply the rinse liquid to the clothes in the holeless washing / dehydrating tub by the circulating means while repeatedly rotating and controlling the rotation speed of the washing / dehydrating tub, and the high rotation speed is the number without the hole. A washing machine in which the rinsing liquid in the washing / dehydrating tank is set higher than the number of rotations at which the rinsing liquid passes over the upper portion of the holeless washing / dehydrating tank and is transferred to the water receiving tank.