JPH09225175A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove dirt by filtrating washing water into clothing even in the case of clothing composed of high water-repellent fibers such as wool and sufficiently passing and circulating the washing water concerning a washing machine for washing clothing by a circulating water current generated by driving a pulsator. SOLUTION: At the bottom part of a spinning tube 3, a pulsator 2 is arranged so as to be freely rotated, a pump chamber 9 is formed at the outer periphery of a rear blade of the pulsator 2, washing water in the spinning tub 3 is fed through a water duct 7 equipped with a water sprinkling port 10 to the upper part of the spinning tub 3 by the pump chamber 9, and a partition body 12 is arranged so as to cover the upside of the pulsator 2. On the stage when a water level detecting means 29 detects plural prescribed water levels lower than a set water level in the middle of water feeding to the set water level, a water feeding valve control means 26 temporarily stops a water feeding valve 17, and the pulsator 2 is intermittently driven for prescribed time by a pulsator control means 25.

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 clothes with a circulating water flow generated by driving a pulsator.

[0002]

2. Description of the Related Art Conventionally, a pulsator type washing machine is mainly used. After putting clothes in a washing / dehydrating tub, a predetermined amount of water and detergent are put in, and the pulsator is rotated to stir the clothes and water. Then, the detergent is dissolved to act on the clothes, and the clothes are rubbed against each other, or the clothes are rubbed against the inner wall surface of the washing / dehydrating tank and the pulsator surface to remove the dirt.

[0003] However, this method has a problem that the laundry is damaged and a problem that a large amount of water or detergent is used. In order to solve these problems, the inventors have
1 has proposed a washing machine. Hereinafter, the configuration will be described.

As shown in FIG. 11, the water receiving tub 1 has a pulsator 2 rotatably arranged at the bottom thereof for washing and dewatering.
And is hung on the outer frame 5 of the washing machine by the hanging bar 4. A plurality of water passage covers 6 are provided on the inner surface of the washing and dewatering tub 3, and form a plurality of water passages 7 with the washing and dewatering tub 3. A back blade 8 is integrally formed on the back surface of the pulsator 2, and a pump chamber 9 is formed on the outer periphery of the back blade 8 so as to cover the back blade 8, and communicates with a plurality of water passages 7.

The washing and dewatering tub 3 is provided above the plurality of water passages 7.
A plurality of water outlets 10 opened toward the interior of the pulsator 2, and a partition 1 having a large number of holes 11 in an upper portion of the pulsator 2.
2 is provided detachably. The motor 13 is a V-belt 1
The pulsator 2 or the washing and dewatering tub 3 is driven via the clutch 4 and the reduction mechanism and clutch 15. The drain valve 16 drains the washing water in the washing and dewatering tub 3, and the water supply valve 17 supplies water to the washing and dewatering tub 3. The washing and dewatering tub 3 is provided with a fluid balancer 18 for reducing vibration during dehydration, and the upper portion of the washing and dewatering tub 3 is covered with a lid 19.

The control device 20 includes a motor 13 and a drain valve 1
6. The water supply valve 17 and the like are controlled to sequentially control each process of washing, rinsing, and dehydrating. The laundry 21 is installed on the partition body 12 and does not directly contact the pulsator 2.

In the above structure, when the control device 20 drives the motor 3 to rotate the pulsator 2, a downward water flow 22 is generated in the substantially central portion of the partition body 12 and, at the same time, a plurality of water spouts 10 are provided. The washing water 23 is sprinkled in a waterfall shape to circulate the washing water. Since the circulated washing water passes through the laundry 21, the laundry 21 is washed by repeating this circulation.

[0008]

In such a washing machine, it is required that the clothes are evenly wetted by the washing water so that the washing water passes through the entire surface of the clothes. However, when the clothes to be washed are made of highly water-repellent fibers such as wool, the washing water hardly penetrates, so it is difficult to wet the clothes evenly, and the circulated washing water acts on the stains of the clothes. In some cases, the cleaning performance is deteriorated.

Further, when the clothes to be washed are made of highly water-repellent fibers such as wool, the washing water hardly penetrates, so that the clothes float up above the partition body 12 and are separated by the water current generated by the rotation of the pulsator 2. 12, it has a problem that it is turned into a felt by receiving a mechanical force caused by colliding with the inner wall surface of the washing and dewatering tub 3, the upper surface of the partition body 12, and the like.

When powder detergent is used, undissolved residue of the powder detergent is apt to be generated. Therefore, when washing water containing undissolved residue is circulated, the detergent remains on the upper surface of the clothes on the partition member 12 and is removed. There has been a problem in that the amount of the detergent that works effectively decreases, and the cleaning performance deteriorates.

When the temperature of the washing water is high, the circulation of the washing water may cause bubbles on the clothes to hinder the circulation of the washing water and reduce the washing performance. When the water temperature of the water is low, there is a problem that the cleaning performance is deteriorated due to the deterioration of the washing power of the washing water.

Further, when the water temperature of the wash water changes, the water content of the clothes changes, and the spin-drying speed changes, which causes wrinkles and deformation of the clothes, and conversely, the predetermined dehydration performance cannot be obtained. Had a problem.

The present invention solves the above-mentioned problems. Even in clothes made of highly water-repellent fibers such as wool, the washing water penetrates into the clothes and the washing water can be sufficiently passed and circulated. The first purpose is to make it possible to remove dirt.

Further, the total amount of water sprayed from the water spouting port in the washing process is controlled by the water temperature of the washing water so that the foaming in the washing / dehydrating tub does not hinder practical use and is stable even when the water temperature is low. The second is to ensure cleaning performance
The purpose is.

A third object of the present invention is to control the spin-drying speed according to the temperature of the washing water to prevent the clothes from wrinkling and getting out of shape and to obtain almost the same spin-drying performance.

[0016]

The first means of the washing machine of the present invention is that a pulsator is rotatably arranged at the bottom of the washing / dehydrating tub, and a pump chamber is formed on the outer periphery of the back blade of the pulsator. Then, the pump room sends the washing water in the washing / dehydrating tub to the upper part of the washing / dehydrating tub through the water passage provided with the sprinkling port, and the partition is arranged so as to cover the pulsator and the water supply valve. When the water level detection means detects a plurality of predetermined water levels lower than the set water level during the water supply to the set water level by the control means, the water supply valve is temporarily stopped and the pulsator control means intermittently drives the pulsator for a predetermined time. It is composed.

As a result, high-concentration washing water gradually permeates from the lower surface of the clothes, and the air vibration between the clothes is eliminated by the vibration of the water generated by the driving of the pulsator. Even for clothes made of highly water-soluble fibers, washing water can penetrate into the clothes, the washing water can be sufficiently passed and circulated, and stains can be removed.

The second means of the washing machine of the present invention is that a pulsator is rotatably arranged at the bottom of the washing / dehydrating tub,
A pump chamber is formed on the outer circumference of the back blade of the pulsator, and the washing water in the washing / dehydrating tub is sent to the upper part of the washing / dehydrating tub by the pump chamber through a water passage provided with a sprinkling port to cover the pulsator 2 above. While arranging the partition body like this,
The water temperature in the washing / dehydrating tub is detected by the water temperature detection means, and the driving of the pulsator is controlled by the pulsator control means. The pulsator control means controls the third drive time period and the on time which are longer than the off time. In addition to having a fourth driving time period shorter than the off time, the water temperature detecting means determines the driving ratio in the washing process between the third driving time period and the fourth driving time period.

As a result, the total amount of washing water sprinkled can be controlled even when the water temperature fluctuates, and the maximum washing effect can be obtained in the foaming of the detergent which does not hinder practical use.

The third means in the washing machine of the present invention detects the water temperature in the washing / dehydrating tub by the water temperature detecting means, and the dewatering control means rotates the washing / dehydrating tub to control the dewatering force. The control means has a plurality of control patterns and is configured to determine the control pattern by the judgment of the water temperature detection means.

As a result, even if the water content of clothes changes due to fluctuations in water temperature, by performing dehydration conditions suitable for the water temperature, a stable rotation speed of dehydration can be obtained, and wrinkles and deformation of the clothes occur. It is possible to reliably execute the dewatering rotation speed set not to do so.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises a pulsator rotatably arranged at the bottom of a washing / dehydrating tank, and a pump chamber formed on the outer periphery of the back blade of the pulsator. A water supply channel for supplying the washing water in the washing / dehydrating tub to the upper part of the washing / dehydrating tub by the pump chamber, a water spout provided in the water feeding channel, and a partitioning member arranged so as to cover the upper part of the pulsator. A pulsator control means for controlling the drive of the pulsator, a water supply valve control means for controlling the opening and closing of a water supply valve for supplying water to the washing / dehydrating tank, and a water level for detecting the water level in the washing / dewatering tank. The water supply valve control means temporarily stops the water supply valve when the water level detection means detects a plurality of predetermined water levels lower than the set water level during the water supply up to the set water level, and the pulsator control is provided. The pulsator is driven intermittently for a certain period of time by means, and the wash water permeates from the bottom of the clothes and does not entrap air pockets between the clothes. Even for clothes made of high-fiber, the wash water can penetrate into the clothes, and the circulating wash water acts on the stains on the clothes to wash them well.

According to a second aspect of the present invention, in the above-mentioned first aspect of the invention, the pulsator control means includes a first drive time period and a sprinkling port from which the washing water in the washing / dehydrating tank is not sprinkled from the sprinkling port. And a second drive time period for sprinkling washing water,
When the pulsator is intermittently driven by the water supply valve control means when the water supply is stopped, it is driven for a predetermined time in the first drive time period and then the second.
It is configured to drive for a predetermined time at the drive time limit,
Dissolving detergent into water supplied in the first driving time period to make washing water, and then supplying sufficient washing water to the clothes from the upper part of the clothes through the sprinkling port in the second driving time period to prevent the clothes from floating. Therefore, the clothes do not rotate due to the rotation of the pulsator, and the damage to the clothes can be eliminated.

According to a third aspect of the present invention, in the invention according to the first or second aspect, the pulsator control means includes a pulsator for a predetermined time during the first drive time and the second drive time at a predetermined water level during water supply. After the sweater is driven, it is configured to be driven only during the first drive time during the water supply to the next predetermined water level. The supplied water is agitated at the same time as the water supply to wash the washing water in the washing and dehydrating tub. The washing water can be quickly and uniformly produced, and even when the powder detergent is used, the undissolved residue of the powder detergent is not generated, and the washing water works effectively on the clothes and the washing performance can be improved.

The invention according to claim 4 is the above-mentioned claim 1.
In the invention described in 3, the water supply valve control means is configured such that the first water supply stop is at a water level lower than the installation height of the partition body, and while the supplied water is turned into washing water,
By circulating the washing water containing the undissolved residue without circulating the undissolved residue, the undissolved residue does not remain on the upper surface of the clothing on the partition body, and the cleaning performance can be improved.

According to a fifth aspect of the present invention, the pulsator rotatably arranged at the bottom of the washing / dehydrating tub, the pump chamber formed on the outer periphery of the back blade of the pulsator, and the pump chamber are used for washing and washing. A water supply channel for supplying the washing water in the dehydration tank to the upper part of the washing and dehydration tank, and a water spout provided in this water supply channel,
The pulsator includes a partition body arranged to cover the upper part of the pulsator, a pulsator control means for controlling the driving of the pulsator, and a water temperature detecting means for detecting the water temperature in the washing / dehydrating tub. The control means has a third drive time period in which the on time is longer than the off time and a fourth drive time period in which the on time is shorter than the off time, and the washing process of the third drive time period and the fourth drive time period is determined by the water temperature detection means. It is configured to determine the drive ratio in the washing process, and the total amount of water sprinkled from the water spout in the washing process can be controlled freely by the water temperature, and the level of foaming in the washing and dehydration tub does not hinder practical use. In addition, the stable cleaning performance can be secured even when the water temperature is low.

According to a sixth aspect of the present invention, in the above-described fifth aspect, the washing time control means is provided for controlling the washing time, and the washing time control means determines the washing time by the water temperature detecting means. In addition to the extension, the pulsator control means is configured to drive the pulsator in the fourth drive period during the extension time, and when the water temperature is low, the washing time is extended with a small amount of water sprayed from the water spout. It is possible to ensure stable cleaning performance.

According to a seventh aspect of the present invention, there is provided a water temperature detecting means for detecting a water temperature in the washing / dehydrating tub and a dewatering control means for rotating the washing / dehydrating tub to control the dewatering force. The control means has a plurality of control patterns, and is configured to determine the control pattern by the judgment of the water temperature detection means.The dehydration performance is controlled by the water temperature to obtain a stable dehydration rotation speed, and the clothes are wrinkled and wrinkled. It is possible to obtain almost the same dewatering performance without causing the shape deformation.

[0029]

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 FIG. 1, the control device 24 includes a pulsator control means 25 for controlling the drive of the pulsator 2, a water supply valve control means 26 for controlling the opening and closing of the water supply valve 17, and a washing time. Washing time control means 27 for controlling the
Motor 1 via a dehydration control means 28 for controlling dehydration power
3, control the drain valve 16 and the water supply valve 17, wash, rinse,
Each step of dehydration is controlled sequentially. The water level detecting means 29
Is for detecting the water level in the washing / dehydrating tub 3, and the water temperature detecting means 30 is for detecting the water temperature in the washing / dehydrating tub 3.
Each detected information is input to the control device 24.

The water supply valve control means 26 suspends the water supply valve 17 when the water level detection means 29 detects a plurality of predetermined water levels lower than the set water level during the water supply to the set water level, and the pulsator control means 25. Is configured to intermittently drive the pulsator for a predetermined time.

The operation of the above structure will be described with reference to FIG. 2. First, in step 31, a detergent is put into the washing / dehydrating tub 3, and in step 32, the partition 12 is placed at a predetermined position in the washing / dehydrating tub 3. Then, the clothing 21 is set on the upper part of the partition body 12 in step 33. Next, in step 34, the washing water level is set by the water level setting switch (not shown) provided in the controller 24, and in step 35, the start switch (not shown) is pressed to start washing.
At this time, one or more predetermined water levels are simultaneously set depending on which water level is set.
In the following description, the case of having two predetermined water levels will be described.

By pressing the start switch, the controller 24 sends a signal to the water supply valve control means 26 in step 36 to turn on the water supply valve 17 to supply water into the washing / dehydrating tub 3. In step 37, the water level in the washing and dewatering tub 3 is detected by the water level detecting means 29, and it is determined whether the water level has reached the first predetermined water level set in the water level setting. If the first predetermined water level has been reached, the water supply valve 17 is turned off in step 38,
In step 39, the pulsator 2 is intermittently driven for a predetermined time,
Then, in step 40, the water supply valve 17 is turned on again to supply water.

In step 41, the water level detecting means 29 determines whether or not the second predetermined water level has been reached. If the second predetermined water level has been reached, the water supply valve 17 is turned off in step 42,
In step 43, the pulsator 2 is intermittently driven for a predetermined time,
Thereafter, at step 44, the water supply valve 17 is turned on again to supply water. Next, in step 45, the water level detecting means 29 determines whether the set water level has been reached. If the set water level has been reached, the water supply valve 17 is turned off in step 46, and washing is started in step 47.

As described above, by intermittently driving the pulsator 2 at a plurality of predetermined water levels provided up to the set water level at the time of washing, the introduced detergent and water are agitated to make uniform wash water and the lower part of the clothes is washed. More wash water can be penetrated, and the movement of water by intermittent drive can drive out the air between clothes and prevent the occurrence of air pockets, allowing the circulating wash water to penetrate the clothes evenly. It is possible to clean the clothes by cleaning the clothes.

(Embodiment 2) As shown in FIG. 3 (a), the pulsator control means 25 shown in FIG. 1 is composed of a short pulsator on-time and a minute reversal time limit by a relatively short off-time. It is composed of a first drive time period in which the washing water in the washing / dehydrating tub 3 is not sprinkled from the water spout 10 and an inversion time which is an on time in which the washing water is sufficiently dispersed from the sprinkle spout 10 as shown in FIG. 3 (b). When the pulsator 2 is intermittently driven by the water supply valve control means 26 when the water supply valve control means 26 is stopped, the first drive time is driven for a predetermined time and then the second drive time is driven for a predetermined time. doing. Other configurations are the same as those in the first embodiment.

The operation of the above structure will be described. The detergent and water put in the washing / dehydrating tub 3 can be stirred by the first driving time shown in FIG. 3 (a) to make uniform washing water. The washing water made in the first driving time period can be supplied from the upper portion of the clothes through the sprinkle port 10 in the second driving time period, and even if the powder detergent is used, undissolved powder detergent may be generated. Without washing water, it works effectively on clothes,
The cleaning performance can be improved.

(Embodiment 3) The pulsator control means 25 in FIG. 1 drives the pulsator 2 at a predetermined water level during water supply for a predetermined time at the first drive time period and the second drive time period, and then reaches the next predetermined water level. It is configured to be driven only during the first drive time during the water supply. Other configurations are the same as those in the first or second embodiment.

The operation of the above configuration will be described with reference to FIG. Note that steps 37 to 47 are the same as the operation of the first embodiment, so description thereof will be omitted.

During the water supply from the first predetermined water level to the second predetermined water level in step 40, the pulsator 2 is driven in the first drive time period in step 50 to stir the supplied water at the same time as the water supply. Thus, the washing water in the washing / dehydrating tub 3 can be quickly and uniformly made. Therefore, the supplied water can be stirred at the same time as the supplied water, and the washing water in the washing / dehydrating tub can be quickly and uniformly turned into washing water. Even if a powder detergent is used, undissolved powder detergent can occur. The washing water can effectively work on the clothes, and the washing performance can be improved.

(Embodiment 4) In the water supply valve control means 26 in FIG. 1, the partition body 1 is operated when the water supply is stopped for the first time (first predetermined water level).
The water level is lower than the installation height of 2. Other configurations are the same as those of the first to third embodiments.

FIG. 5 shows the relationship between the set water level and the predetermined water level. As shown in FIG. 5, the first predetermined water level P1 and the second predetermined water level P1 are set.
The predetermined water level P2 and the third predetermined water level P3 are set at regular intervals, and the first predetermined water level P1 is set to a water level lower than the installation height of the partition 12. PS1, PS2, PS3
Are the first set water level, the second set water level, and the third set water level, respectively.

To explain the operation of the above structure, when the pulsator 2 is intermittently driven at a predetermined water level provided up to the set water level during washing, the introduced detergent and water are stirred to make uniform wash water. By setting the first predetermined water level P1 to a water level lower than the installation height of the partition body 12, the wash water does not circulate during the process of turning the supplied water into the wash water, and the wash water containing undissolved water By circulating the liquid, the undissolved residue does not remain on the upper surface of the clothing on the partition body, and the cleaning performance can be improved.

(Embodiment 5) The pulsator control means 25 shown in FIG. 1 has a third drive time period as shown in FIG. 6 (a) in which the on time is longer than the off time and an on time as shown in FIG. 6 (b). The time has a fourth driving time period shorter than the off time, and the water temperature detecting means 30 determines the driving ratio in the washing process between the third driving time period and the fourth driving time period. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described with reference to FIGS. 7 and 8. When the pulsator 2 is driven in the third driving time period, the ON time per one inversion cycle is longer than the OFF time, so that a large amount of washing water can be sprinkled from the water spout 10 and the pulsator 2 is driven by the fourth driving. When driven in a timed manner, a small amount of washing water can be sprinkled from the sprinkling port 10 because the ON time per inversion cycle is shorter than the OFF time.

Washing is started in step 47 of FIG. 7, and the pulsator 2 is driven in step 49. In step 50, the water temperature detecting means 30 detects the water temperature in the washing / dehydrating tub 3, and if the water temperature is lower than the reference value, the process proceeds to step 51.
When the pulsator 2 is driven at the first drive ratio as shown in FIG. 8 (a) and the water temperature is higher than the reference value, the process proceeds to step 52, and the pulsator 2 is driven at the second drive ratio as shown in FIG. 8 (b). Drive the sweater 2.

The first drive ratio shown in FIG. 8 (a) is configured so that the drive in the third drive time period is longer than the drive in the fourth drive time period, and when the water temperature is lower than the reference value, it is dispersed. Water mouth 1
Even if the amount of water sprinkled from 0 is increased, the foaming in the washing / dehydrating tub 3 is reduced, so that the washing performance can be improved by driving in the third drive time period to increase the total amount of water sprinkled.

The second drive ratio shown in FIG. 8B is configured so that the drive in the third drive time period is shorter than the drive in the fourth drive time period, and when the water temperature is higher than the reference value, it is dispersed. Water mouth 1
When the amount of water sprinkled from 0 is large, the foaming in the washing / dehydrating tub 3 becomes high. Therefore, the total amount of water sprinkling can be lowered by driving in the fourth drive time period, and the foaming can be kept below a certain level.

As described above, the drive ratio in the washing process is determined by determining the water temperature in the washing / dehydrating tub 3, and the foaming in the washing / dehydrating tub 3 is set to a level at which there is no practical problem and the water temperature is Stable cleaning performance can be secured even when the temperature is low.

(Embodiment 6) The washing time control means 27 in FIG. 1 extends the washing time by the judgment of the water temperature detecting means 30, and the pulsator control means 25 in the extended time is the pulsator 2 in the third driving time period. Is configured to drive. Other configurations are the same as those of the fifth embodiment.

The operation of the above structure will be described with reference to FIG. Start washing in step 47, step 4
9 drives the pulsator 2. When a predetermined washing time has elapsed in step 53, the process proceeds to step 54, and the water temperature detecting means 30 detects the water temperature in the washing / dehydrating tub 3. When the water temperature detected by the water temperature detecting means 30 is lower than the reference value in step 54, the process proceeds to step 55, and the washing time is extended by a predetermined time to drive the pulsator 2. At this time, the pulsator control means 25 drives the pulsator 2 in the third drive time period. Therefore, even if the water temperature in the washing / dehydrating tub 3 is low, stable washing performance can be ensured.

(Embodiment 7) Dehydration control means 2 in FIG.
8 has a plurality of control patterns with different on-times of intermittent dehydration, and is configured to determine the control pattern by the judgment of the water temperature detecting means 30. Other configurations are the same as those in the first embodiment.

The operation of the above structure will be described with reference to FIG. The washing is completed in step 56, and the drain valve 16 is turned on in step 57 to start draining. In step 58, the water temperature in the washing / dehydrating tub 3 detected by the water temperature detecting means 30 is determined. When the water temperature is higher than T1 (for example, 15 ° C.), the process proceeds to step 59, and the dehydration control means 28 is set to the first
Control with a dehydration control pattern. In step 58, the water temperature becomes T
When it is lower than 1, the routine proceeds to step 60, and when the water temperature is higher than T2 (for example, 5 ° C.), the routine proceeds to step 61, where the dehydration control means 28 is controlled by the second dehydration control pattern. When the water temperature is lower than T2 in step 60, the process proceeds to step 62, and the dehydration control means 28 is controlled by the third dehydration control pattern. Then, in step 63, the drain valve 16 is turned off.

The first dehydration control pattern is the washing test dehydration tank 3
Is driven for 2.5 seconds on-5 seconds off, the second dehydration control pattern drives the laundry detection / dehydration tank 3 for 3 seconds on-5 seconds off, and the third dehydration control pattern is for the laundry detection / dehydration tank 3 To 3.5
Second on-5 seconds off. Therefore, even when the water content of clothes varies depending on the water temperature, the number of rotations of dehydration can be made substantially constant, and stable dehydration performance can be secured.

[0055]

As described above, according to the first aspect of the present invention, the pulsator rotatably disposed at the bottom of the washing and dewatering tub and the outer periphery of the back blade of the pulsator are formed. A pump room, and a water passage for supplying the washing water in the washing and dewatering tub to the upper portion of the washing and dewatering tub by the pump room,
A water spout provided in this water supply path, a partitioning body arranged so as to cover the upper part of the pulsator, a pulsator control means for controlling the drive of the pulsator, and a water supply for supplying water into the washing and dehydrating tub. The water supply valve control means for controlling the opening and closing of the valve and the water level detection means for detecting the water level in the washing / dehydrating tub are provided, and the water supply valve control means is set by the water level detection means during the water supply up to the set water level. Since the water supply valve is temporarily stopped when a plurality of predetermined water levels lower than the water level are detected and the pulsator control means is configured to intermittently drive the pulsator for a predetermined time, the clothes are made of water-repellent fibers such as wool. Even if it is configured, it allows wash water to penetrate from the bottom of the clothes and does not trap air pockets between the clothes, so the wash water can penetrate into the clothes evenly. Can be, the washing water circulating acts on the dirt of clothing, it is possible to clean wash.

According to the second aspect of the present invention, the pulsator control means has a first drive time when the washing water in the washing / dehydrating tank is not sprinkled from the sprinkling port and the washing water is sprinkled from the sprinkling port. When the pulsator is intermittently driven by the water supply valve control means when the water supply is stopped by the water supply valve control means, the first drive time period is driven for a predetermined time period and then the second drive time period is driven for a predetermined time period. By sprinkling the dissolved washing water from the upper part of the clothes and making it sufficiently penetrate into the clothes to make them heavy, even clothes made of water repellent fibers such as wool do not float up as the water level rises. The clothes do not rotate due to the rotation of the pulsator, and the damage to the clothes can be eliminated.

According to the third aspect of the invention, the pulsator control means drives the pulsator at the predetermined water level during the water supply for the predetermined time at the first drive time period and the second drive time period, and then Since it is configured to be driven only by the first drive time limit during the water supply up to the predetermined water level, the supplied water can be stirred at the same time as the water supply, and the wash water in the washing and dehydrating tub can be quickly and uniformly washed. Even when the powder detergent is used, the powder detergent does not remain undissolved, the washing water works effectively on the clothes, and the cleaning performance can be improved.

According to the fourth aspect of the invention, the water supply valve control means is configured such that the first water supply stop is at a water level lower than the installation height of the partition body, so the supplied water is used as washing water. By circulating the washing water containing the undissolved residue without circulating the undissolved residue on the way, the undissolved residue does not remain on the upper surface of the clothing on the partition body, and the cleaning performance can be improved.

According to the invention of claim 5, a pulsator rotatably arranged at the bottom of the washing / dehydrating tub, a pump chamber formed on the outer periphery of the back blade of the pulsator, and the pump. A water supply channel for supplying the washing water in the washing / dehydrating tub to the upper part of the washing / dehydrating tub by the chamber, a sprinkler port provided in the water feeding channel, and a partitioning body arranged so as to cover the pulsator upper part, The pulsator control means includes a pulsator control means for controlling the drive of the pulsator and a water temperature detection means for detecting the water temperature in the washing / dehydrating tub, and the pulsator control means has a third drive time period and an on time in which the on time is longer than the off time. With a fourth drive time period where the time is shorter than the off time,
Since the driving ratio in the washing process of the third driving time period and the fourth driving time period is determined by the judgment of the water temperature detecting means, even if the water temperature changes, the total sprinkling amount of the washing water can be controlled by driving the pulsator. By controlling the time, it is possible to obtain the maximum cleaning effect in the foaming of the detergent, which does not hinder practical use.

Further, according to the invention described in claim 6, the washing time control means for controlling the washing time is provided, and the washing time control means extends the washing time by the judgment of the water temperature detecting means and extends the washing time. Since the pulsator control means is configured to drive the pulsator in the fourth driving time period, the washing time can be extended with a small amount of water sprinkled from the spout when the water temperature is low, and stable washing can be performed. Performance can be secured.

According to the seventh aspect of the invention, there are provided a water temperature detecting means for detecting the water temperature in the washing / dehydrating tub and a dehydrating control means for rotating the washing / dehydrating tub to control the dewatering force. Since the dehydration control means has a plurality of control patterns and is configured to determine the control pattern by the judgment of the water temperature detecting means, even if the water content of the clothes changes due to the fluctuation of the water temperature, the dehydration suitable for the water temperature is performed. By executing the conditions, a stable spin-drying speed can be obtained, and substantially the same spin-drying performance can be obtained without causing wrinkles or shape deformation on the clothes.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a washing machine according to a first embodiment of the present invention.

FIG. 2 is an operation flowchart of a water supply process of the washing machine.

FIG. 3 (a) is a time chart of the first drive time limit of the washing machine of the second embodiment of the present invention (b) is a time chart of the second drive time limit of the same washing machine.

FIG. 4 is a main part operation flowchart of a water supply process of a washing machine according to a third embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of a washing machine according to a fourth embodiment of the present invention.

FIG. 6 (a) is a time chart of the third driving time period of the washing machine of the fifth embodiment of the present invention (b) is a time chart of the fourth driving time period of the washing machine.

FIG. 7 is an operation flowchart of a washing process of the washing machine.

[Fig. 8] (a) First pulsator in the washing process of the washing machine
Process diagram based on drive ratio (b) Process diagram based on the second drive ratio of the pulsator in the washing process of the same washing machine

FIG. 9 is an operation flowchart of a main part of a washing process of a washing machine according to a sixth embodiment of the present invention.

FIG. 10 is a main part operation flowchart of a dehydration process of a washing machine according to a seventh embodiment of the present invention.

FIG. 11 is a vertical sectional view of a conventional washing machine.

[Explanation of symbols]

 2 Pulsator 3 Washing / dehydrating tub 7 Water passage 8 Back blade 9 Pump room 10 Sprinkling port 12 Partition body 17 Water supply valve 25 Pulsator control means 26 Water supply valve control means 29 Water level detection means

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshitoyo Miki 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Fumio Ota 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. Within

Claims (7)

[Claims] 1. A pulsator rotatably arranged at the bottom of a washing and dewatering tub, a pump chamber formed on the outer periphery of the back wing of the pulsator, and the pump chamber is used to supply washing water in the washing and dewatering tub. A water channel that feeds water to the top of the washing and dewatering tub,
A water spout provided in this water supply path, a partitioning body arranged so as to cover the upper part of the pulsator, a pulsator control means for controlling the drive of the pulsator, and a water supply for supplying water into the washing and dehydrating tub. The water supply valve control means for controlling the opening and closing of the valve and the water level detection means for detecting the water level in the washing / dehydrating tub are provided, and the water supply valve control means is set by the water level detection means during the water supply up to the set water level. A washing machine configured to temporarily stop the water supply valve when a plurality of predetermined water levels lower than the water level are detected and to intermittently drive the pulsator for a predetermined time by the pulsator control means. 2. The pulsator control means has a first drive time period in which the washing water in the washing and dehydrating tub is not sprinkled from the water sprinkling port and a second drive time period in which the washing water is sprinkled from the water sprinkling port, and the water supply valve control is performed. 2. The washing machine according to claim 1, wherein when the pulsator is intermittently driven when the water supply is stopped by the means, the pulsator is driven for a predetermined time in the first drive time period and then for a predetermined time in the second drive time period. 3. The pulsator control means drives the pulsator at a predetermined water level during the water supply for a predetermined time at a first drive time period and a second drive time period, and then supplies water to the next predetermined water level during the first drive time period. The washing machine according to claim 1 or 2, which is configured to be driven only by itself. 4. The washing machine according to claim 1, wherein the water supply valve control means is configured such that the first water supply stop is at a water level lower than the installation height of the partition body. 5. A pulsator rotatably arranged at the bottom of the washing / dehydrating tub, a pump chamber formed on the outer periphery of the back blade of the pulsator, and the pump chamber for rinsing the washing water in the washing / dehydrating tub. A water supply channel for supplying water to the upper part of the washing and dehydrating tank,
A water spout provided in this water passage, a partitioning body arranged so as to cover the upper part of the pulsator, a pulsator control means for controlling the drive of the pulsator, and a water temperature in the washing and dehydrating tub are detected. The pulsator control means has a third drive time period in which the on time is longer than the off time and a fourth drive time period in which the on time is shorter than the off time, and the third time is determined by the water temperature detection means. A washing machine configured to determine a drive ratio in a washing process of a driving time limit and a fourth driving time limit. 6. A washing time control means for controlling a washing time is provided, wherein the washing time control means extends the washing time by the judgment of the water temperature detecting means, and the pulsator control means has a fourth driving time limit during the extension time. The washing machine according to claim 5, wherein the washing machine is configured to drive the pulsator. 7. A water temperature detecting means for detecting a water temperature in the washing / dehydrating tub, and a dehydration control means for controlling the dewatering force by rotating the washing / dehydrating tub, wherein the dewatering control means has a plurality of control patterns. And a washing machine configured to determine the control pattern by the judgment of the water temperature detecting means.