JPH1085482A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably infiltrate washing water to the inside of clothes even for the clothes of highly water repellent fibers such as wool or the like and to cleanly perform washing by circulated washing water in a washing machine for washing the clothes by a circulated stream generated by the drive of a pulsator. SOLUTION: The pulsator 2 is freely rotatably disposed to the bottom part of a washing and dehydrating tank 3, the washing water inside the washing and dehydrating tank 3 is sent through a water sending path 7 provided with a sprinkling port 10 to the upper part of the washing and dehydrating tank 3 by a pump chamber 9 formed on the outer periphery of the back blade 8 of the pulsator 2 and a partition body 12 is disposed so as to cover the upper part of the pulsator 2. By a water supply valve control means 26, in a stage where a water level detection means 29 detects plural prescribed water levels lower than a set water level in the middle of supplying water to the set water level, a water supply valve 17 is temporarily stopped, the pulsator 2 is intermittently driven for prescribed time by a pulsator control means 25 and the input of set water level change is inhibited in a period after the water supply is started until the water supply to the set water level is completed.

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 by circulating water 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 and dewatering tub, a predetermined amount of water and a detergent are put in, and the pulsator is rotated to stir the clothes and water. In addition, the detergent is dissolved to act on the stains of the clothes, and the clothes are rubbed against each other, or the clothes are rubbed against the inner wall surface of the washing and dewatering tub and the surface of the pulsator to remove the stains.

[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. The inventors have attempted to solve these problems by using FIG.
The following washing machine is proposed. Hereinafter, the configuration will be described.

As shown in the figure, a water receiving tub 1 includes a washing and dewatering tub 3 in which a pulsator 2 is rotatably disposed at the bottom, and is suspended from a washing machine outer frame 5 by a hanging rod 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 configuration, when the pulsator 2 is rotated by driving the motor 13 by the control device 20, a downward water flow 22 is generated substantially at the center of the partition 12, and at the same time, a plurality of water outlets 10 The washing water 23 is sprinkled like a waterfall 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 conventional configuration, it is required that the clothes are uniformly wetted with the washing water and the washing water passes over 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.

In addition, since the washing liquid is sprinkled like a waterfall to wash the water, it is easy to foam, and at the time of dehydration, low-speed dehydration is performed so that the clothes do not wrinkle or lose their shape. There was a problem that it could not be removed only by spin-drying.

The present invention has been made to solve the above-mentioned problem. Even in the case of clothes made of highly water-repellent fibers such as wool, the washing water stably penetrates into the inside of the clothes, and the circulating washing water makes the clothes dirty. It is a primary object of the present invention to act on the surface of the container so that it can be washed cleanly.

It is a second object of the present invention to remove bubbles generated by washing the washing liquid in a waterfall manner and adhering to the wall surface of the washing and dewatering tub with a stirring water flow during the rinsing process.

[0014]

A first means in the washing machine of the present invention is that a pulsator is rotatably disposed at the bottom of a washing and dewatering tub, and a pump chamber is formed on an outer periphery of a back blade of the pulsator. Then, the washing water in the washing and dewatering tub is supplied to the upper part of the washing and dewatering tub by a pump room through a water passage provided with a water spout, and a partition body is disposed so as to cover the upper part of the pulsator, and the set water level is set. The water supply valve control means temporarily stops the water supply valve at a stage where 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, and the pulsator control means The pulsator is intermittently driven for a predetermined period of time to prohibit the input of the change of the set water level from the start of the water supply to the completion of the water supply to the set water level.

As a result, high-concentration washing water gradually permeates from the lower surface of the clothes, and the air pool between the clothes is eliminated by the vibration of the water generated by driving the pulsator. Even for clothes made of highly water-based fiber, the washing water can penetrate into the inside of the clothes, the circulating washing water acts on the stains on the clothes, it can be washed cleanly, and the water level set by the user on the way Even if an attempt is made to change the washing water, the operation is not changed and the washing water can be stably permeated.

The second means in the washing machine of the present invention is that a pulsator is rotatably disposed at the bottom of the washing and dewatering tub,
A pump chamber is formed on the outer periphery of the back blades of the pulsator, and the pump chamber supplies the washing water in the washing and dewatering tub to the upper part of the washing and dewatering tub through a water passage provided with a water spout so as to cover the upper part of the pulsator. A water level detecting means is provided, and water is supplied to a predetermined water level higher than a set water level in a washing step, and a rinsing operation is performed.

Thus, the bubbles of the washing liquid generated during the washing process and adhered to the wall surface of the washing and dewatering tub can be removed by the stirring water flow during the rinsing process.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a pulsator rotatably disposed at the bottom of a washing and dewatering tub, and a pump chamber formed on the outer periphery of the back blade of the pulsator. 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 chamber, a water spout provided in the water passage, and a partition disposed to cover an upper portion of the pulsator. A body, pulsator control means for controlling the drive of the pulsator, water valve control means for controlling opening and closing of a water supply valve for supplying water into the washing and dewatering tub, and detecting a water level in the washing and dewatering tub. Water level detection means, comprising an operation input means, the water supply valve control means, during the water supply up to the set water level, while temporarily stopping the water supply valve at the stage where the water level detection means has detected a plurality of predetermined water levels lower than the set water level And said The pulsator is intermittently driven for a predetermined time by a water sweater control means, and the operation input means is configured to prohibit input of a change in the set water level during a period from the start of water supply to the completion of water supply to the set water level. Penetrates from the bottom of the garment and does not entrap the air between the garments. The circulating washing water acts on the dirt on the clothes and can be washed neatly.Also, even if the user tries to change the set water level on the way, it will not accept the operation and change the operation, so it is stable The washing water can be permeated.

The invention according to a second aspect of the present invention provides a pulsator rotatably disposed at the bottom of a washing and dewatering tub, a pump chamber formed on the outer periphery of the back blade of the pulsator, and a pump chamber for washing and dehydrating. A water channel for supplying the washing water in the dewatering tub to the upper portion of the washing and dewatering tub, and a water spout provided in the water channel;
A partition disposed to cover the upper part of the pulsator, pulsator control means for controlling the drive of the pulsator, and water supply valve control for controlling opening and closing of a water supply valve for supplying water to the washing and dewatering tub Means, a water level detecting means for detecting a water level in the washing and dewatering tub, and an operation input means,
The water supply valve control means is configured to supply water to a predetermined water level higher than a set water level of the washing stroke in the rinsing stroke and to perform a rinsing operation. The bubbles of the washing liquid adhering to the wall surface of the dewatering tub can be washed away with a rinsing stirring water flow.

According to a third aspect of the present invention, in the second aspect of the present invention, when the water supply valve control means performs a special operation with the operation input means, the water supply valve control means sets the water level in the rinsing stroke from the set water level of the washing stroke. It is designed to supply water to a high predetermined water level and perform a rinsing operation.Water level is raised only when necessary, such as when foaming is remarkable due to the type of detergent used, etc. Water is no longer used.

[0021]

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 driving 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
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
Detects the water level in the washing and dewatering tub 3 and inputs the detected information to the control device 24. The operation input means 30 is for inputting various settings of washing, etc., and has a water level setting switch 30a, a start switch 30b, a washing time setting switch 30c, a power switch 30d, etc., as shown in FIG. It is input to the control device 24.

According to the water level set by the water level setting switch 30a, as shown in Table 1 and FIG.
One or more predetermined water levels are set at the same time.

[0024]

[Table 1]

The water supply valve control means 26 temporarily stops the water supply valve 17 when the water level detection means 29 detects the predetermined water level during the water supply to the set water level, and the pulsator control means 25 controls the pulsator for a predetermined time. Are driven intermittently.

The operation of the above construction will be described with reference to FIG. 4. First, in step 31, a detergent is put into the washing / dewatering tub 3, and in step 32, the partition body 12 is moved to a predetermined position in the washing / dewatering tub 3. After that, the clothes 21 are 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 30a provided in the operation input means 30, and in step 35, the start switch 30b is pressed to start washing. Here, a case where the set water level has two predetermined water levels, such as “low” in (Table 1), will be described.

When the start switch 30b is pressed, the controller 24 in step 36 causes the water supply valve control means 26
To the washing and dewatering tub 3
Supply water inside. 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 at step 38, the pulsator 2 is intermittently driven for a predetermined time at step 39, and then the water supply valve 17 is turned on again at step 40 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 supplied detergent and water are agitated to make uniform washing water while lowering the clothes. Washing water can be made to permeate more, and the movement of water by intermittent driving expels air between clothes, preventing the formation of air pockets, and allowing the circulating washing water to permeate clothes evenly. It works on soiling of clothes and can be washed cleanly.

When the predetermined water level is only the first predetermined water level, such as when the set water level is "small" or "minimum", steps 39 to 42 in FIG. 4 are omitted.

If the user attempts to change the set water level during the period from step 36 to step 46, for example, the set water level is set to "small" in step 34, and after starting in step 35, step 39 If the set water level is switched to "low" in step 39, if the pulsator drive in step 39 is interrupted and water is supplied, the effect of permeating the washing water in order from the lower part of the clothes is reduced. If the pulsator driving is continued, a problem such as giving a feeling of mistrust occurs because the operation does not correspond to the operation of the user. Therefore, after starting in step 35, the operation input means 30 is operated by the water level setting switch 30a until step 46. Is prohibited.

(Embodiment 2) In the configuration shown in FIG. 1, the water supply valve control means 26 is configured to supply water to a predetermined water level higher than the set water level in the washing step in the rinsing step, and to perform a rinsing operation. Other configurations are the same as those in the first embodiment.

In the above configuration, for example, when the set water level is set to "low" and washing is performed, step 4 shown in FIG.
5, the water level detection means 29 detects the set water level PS3 of the washing process, and in step 46 the water supply is completed by the water supply valve control means 26, and then in step 47 the pulsator control means 2
When the pulsator 2 is rotated by 5, a downward water flow 22 is generated substantially at the center of the partition body 12, and at the same time, the washing water 23 is sprinkled in a waterfall form from the plurality of water outlets 10 to circulate the washing water. Done.

Since the circulated washing water passes through the laundry 21, the washing 21 is washed by repeating this circulation. At this time, compared with the conventional washing method in which the washing is performed only by the stirring water flow by the rotation of the pulsator 2, the generation of bubbles increases due to the sprinkling of the washing liquid on the water surface.

After finishing the washing for a predetermined time, the control device 24
Drives the drain valve 16 to drain the washing liquid in the water receiving tub 1, and controls the rotation of the washing and dewatering tub 3 by the dehydration control means 28 to perform dehydration. Bubbles generated during the washing process and attached to the wall surface of the washing and dewatering tub 3 are blown away and removed by the dehydration rotation at this time. However, in order to prevent the clothes 21 such as wool placed on the partition body 12 from being deviated or damaged by the spin-drying, the spin-drying power at this time is set to be weak. In some cases, the foam cannot be sufficiently removed due to a large amount of the generated foam and a high foam viscosity.

Next, the water supply valve control means 26 supplies water to a predetermined water level PS5 which is about 100 mm higher than the set water level PS3 at the time of the washing process, and the pulsator control means 25 rotates the pulsator 2 to perform rinsing. At this time,
Among the bubbles remaining in the above-mentioned dewatering step, the bubbles attached to the upper surface from the water level during the washing step of the washing and dewatering tub 3 are submerged, and thus can be removed by the rinsing water flow.

(Embodiment 3) In the same configuration as Embodiment 2, the water level during the rinsing stroke is raised only when a special operation is performed by the operation input means 30. That is, by pressing the power switch 30d and turning on the power while the water level setting switch 30a and the washing time setting switch 30c of the operation input means 30 are simultaneously pressed, the special mode is set. In this state, the water level setting switch 30a By pressing several times, the mode is set so that the water level at the time of rinsing is set higher than at the time of washing. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. When the water level setting switch 30a and the washing time setting switch 30c of the operation input means 30 are simultaneously pressed, the power switch 3 is turned on.
By pressing 0d and turning on the power, the serviceman is set to a special mode for checking the washing machine. In this state, when the water level setting switch 30a is further pressed a plurality of times, the mode is set so that the water level at the time of rinsing is set to be higher than that at the time of washing, and the setting is performed here. After this setting, the water level during the rinsing process is set to the set water level PS3 during the washing process.
Water is supplied up to a predetermined water level PS5 higher by about 100 mm,
The pulsator 2 is rotated by the pulsator control means 25 to perform rinsing.

Therefore, in the normal case where bubbles can be removed by dehydration after the washing step in the water supply during the rinsing step,
The same set water level P as in the washing process by the water supply valve control means 26
If water cannot be removed by dewatering after the washing process and water washing is performed up to S3, the water level of the rinsing process can be changed to the washing process by performing a special operation in advance using the operation input means 30. Bubbles adhering to the upper surface from the water level at the time of the washing process of the dewatering tank 3 can be removed by the rinsing water flow.

[0040]

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 the water supply channel, a partition body arranged to cover an upper part of the pulsator, a pulsator control means for controlling the driving of the pulsator, and water supply to the washing and dewatering tub. Water supply valve control means for controlling the opening and closing of the water supply valve, water level detection means for detecting the water level in the washing and dewatering tub, operation input means, the water supply valve control means,
While the water level detection means has detected a plurality of predetermined water levels lower than the set water level during the water supply to the set water level, the water supply valve is temporarily stopped, and the pulsator control means intermittently drives the pulsator for a predetermined time, Since the operation input means is configured to prohibit the input of the set water level change from the start of water supply to the completion of water supply to the set water level,
Since the washing water permeates from the bottom of the clothes and does not entrap the air between the clothes, even if the clothes are made of highly water-repellent fiber such as wool, the washing water permeates into the clothes. Because the circulating washing water acts on the dirt on the clothes, it can be washed cleanly, and even if the user tries to change the set water level on the way, it will not accept the operation and change the operation It can stably penetrate the washing water.

According to the second aspect of the present invention, a pulsator rotatably disposed at the bottom of the washing and dewatering tub, a pump chamber formed on the outer periphery of the back blade of the pulsator, and the pump 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 a room, a water spout provided in the water passage, and a partition body disposed to cover an upper portion of the pulsator; Pulsator control means for controlling the driving of the pulsator, water supply valve control means for controlling opening and closing of a water supply valve for supplying water to the washing and dewatering tub, and water level detecting means for detecting a water level in the washing and dewatering tub And an operation input means, and the water supply valve control means is configured to perform a water supply rinsing operation to a predetermined water level higher than a set water level of the washing step in the rinsing stroke, so that the water level during the rinsing stroke is increased, line Sometimes occurs, it can be washed out by stirring water rinsing foam of the washing liquid adhering to the wall surface of the washing and dewatering tank.

According to the third aspect of the invention, the water supply valve control means supplies water to a predetermined water level higher than a set water level in the washing step in the rinsing step when a special operation is performed by the operation input means. It is designed to perform a rinsing operation.In order to raise the water level only when necessary, such as when foaming is remarkable due to the type of detergent used, use water wastefully when foaming is not a problem. Disappears.

[Brief description of the 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 enlarged front view of operation input means of the washing machine.

FIG. 3 is a longitudinal sectional view of the washing machine.

FIG. 4 is an operation flowchart of a water supply process of the washing machine.

FIG. 5 is a longitudinal sectional view of a conventional washing machine.

[Explanation of symbols]

 Reference Signs List 2 Pulsator 3 Washing and dewatering tub 7 Water supply channel 8 Back blade 9 Pump room 10 Sprinkling port 12 Partition member 17 Water supply valve 25 Pulsator control means 26 Water supply valve control means 29 Water level detection means 30 Operation input means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuko Omura 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (3)

[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 the water supply channel, a partition body arranged to cover an upper part of the pulsator, a pulsator control means for controlling the driving of the pulsator, and water supply to the washing and dewatering tub. Water supply valve control means for controlling the opening and closing of the water supply valve, water level detection means for detecting the water level in the washing and dewatering tub, operation input means, the water supply valve control means,
While the water level detection means has detected a plurality of predetermined water levels lower than the set water level during the water supply to the set water level, the water supply valve is temporarily stopped, and the pulsator control means intermittently drives the pulsator for a predetermined time, A washing machine wherein the operation input means is configured to prohibit input of a change in the set water level during a period from the start of water supply to the completion of water supply to the set water level. 2. A pulsator rotatably disposed at the bottom of the washing and dewatering tub, a pump chamber formed on the outer periphery of the back blade of the pulsator, and the pump water is used to discharge 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 the water supply channel, a partition body arranged to cover an upper part of the pulsator, a pulsator control means for controlling the driving of the pulsator, and water supply to the washing and dewatering tub. Water supply valve control means for controlling the opening and closing of the water supply valve, water level detection means for detecting the water level in the washing and dewatering tub, and operation input means, the water supply valve control means in the rinsing stroke, the set water level of the washing stroke A washing machine configured to supply water to a higher predetermined water level and perform a rinsing operation. 3. The water supply valve control means is configured to perform a water supply rinsing operation to a predetermined water level higher than a water level set in a washing step in a rinsing step when a special operation is performed by the operation input means. Washing machine.