JP3303553B2 - Fully automatic 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 fully automatic washing machine for performing rinsing while supplying water onto a laundry in a shower.

[0002]

2. Description of the Related Art A conventional fully automatic washing machine is constructed as shown in FIG. Hereinafter, the configuration will be described.

[0003] As shown in the figure, a water balancer 2 for damping dehydration vibration is fixed to the upper end of a washing and dewatering tub 1, and the water balancer 2 and a soft finishing agent charging case 3 use a soft centrifugal force to apply soft water. It forms a finishing agent charging structure. The water supply valve 4 supplies tap water from the water supply nozzle 5 through the detergent case 6 to the washing / dewatering tub 1 through the water supply port 7. A pulsator 8 is arranged at the bottom of the washing and dewatering tub 1, and a drain valve 9 drains the washing liquid in the washing and dewatering tub 1 to the outside through a drain hose 10.

In the above configuration, first, the entire washing process will be described. First, laundry and detergent are put into the washing / dewatering tub 1,
Put the soft finish into the soft finish input case 3,
When a start button (not shown) is pressed, the water supply valve 4 is opened, and tap water is supplied from the water supply nozzle 5 to the washing / dewatering tub 1 from the water supply port 7 through the detergent case 6 to a predetermined water level according to the amount of cloth. Is done. Thereafter, the pulsator 8 disposed at the bottom of the washing and dewatering tub 1 is stirred and washed. When the washing is completed, the drain valve 9 is opened, and the washing liquid is drained out of the machine via the drain hose 10.

Next, the washing and dewatering tub 1 is rotated at a high speed to centrifugally dehydrate the washing liquid contained in the laundry, and then the drain valve 9 is closed. In the rinsing process, tap water is stored in the washing and dewatering tub 1 in the same manner as in the washing process, and the rinsing is performed by stirring with the pulsator 8, and thereafter, drainage of the rinsing liquid and centrifugal dehydration of the laundry are performed. This is repeated twice to complete the washing. In some cases, tap water is injected during the rinsing, and the rinsing is performed while overflowing.

[0006]

In such a conventional fully-automatic washing machine, the washing and dewatering tub 1 is filled with rinsing water, and is then rinsed and rinsed. Then, the rinsing principle spreads,
Due to dilution, water resources require a large amount of tap water to ensure rinsing performance that satisfies the user, and time is required to repeatedly store and drain water. Had.

[0007] In addition, in a home where the tap water pressure is low, there is a problem that the water supply flow rate is small and the water supply time is long with only a single water supply valve.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to efficiently perform rinsing for saving water resources, to achieve satisfactory rinsing performance and to save water, and to shorten operation time. .

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a water supply nozzle for supplying water into a washing and dewatering tub.
A first water supply means through which water flows, and a second water supply means connected to a shower nozzle for supplying water to the laundry in the washing and dewatering tub in a shower shape.
Water supply means, water level detection means for detecting the water supply water level of the washing and dewatering tub, operation display means for setting the stroke and displaying the operation, and control means for sequentially controlling each of the washing, rinsing, and dehydration strokes. The control means is configured to operate the first and second water supply means simultaneously when supplying water to the washing and dewatering tub to supply water, and to operate the second water supply means during shower rinsing to supply water. This is defined as a first problem solving means.

The control means of the first means for solving the problems, when the operation is set by the operation display means, simultaneously operates the first and second water supply means at the time of supplying water to the washing and dewatering tub. The second problem-solving means is to supply the water and operate the second water supply means during the shower rinsing to supply the water.

Further, the control means of the first problem solving means detects a water level rising time during a water supply process by a water level detecting means, and when the water level rising time exceeds a predetermined value, the control means sends the washing and dewatering tub to the washing and dewatering tub. The third problem-solving means is that the first and second water supply means are simultaneously operated to supply water at the time of water supply, and the second water supply means is operated to supply water at the time of shower rinsing.

[0012] In addition to the second or third means for solving the above problems, there is provided storage means for storing the operations of the first water supply means and the second water supply means, and the control means is stored in the storage means. Based on the stored contents, the first and second water supply means are operated simultaneously when water is supplied to the washing and dewatering tub, and the second water supply means is operated and water is supplied during shower rinsing. This is the fourth problem solving means.

The fifth means for solving the problem is that the control means of the second to fourth means for solving the problem supplies the water by operating the first water supply means at the time of rinsing.

[0014]

According to the first aspect of the present invention, there is provided:
By supplying water from the shower nozzle to the laundry in the washing and dewatering tub, rinsing can be carried out efficiently, and satisfactory rinsing performance and water saving can be achieved. When supplying water to the water tank, the first
Since the water supply is performed by simultaneously operating the second water supply means and the second water supply means, the water supply time can be reduced.

According to the second means for solving the problem, by operating the operation display means, it is possible to select between simultaneous water supply by two water supply means or independent water supply. When the tap water pressure is low, two water supply means are provided. The water supply time can be shortened by supplying water at the same time with the water supply means, and when the tap water pressure is high, water can be supplied only with one water supply means to prevent water splashing due to high water pressure. it can.

Further, according to the third means for solving the problem, the tap water pressure can be estimated by detecting the water supply speed, and when the tap water pressure is low, the water supply time is reduced by simultaneously supplying water with two water supply means. When the tap water pressure is high, water can be supplied only by one water supply means, and splashing of water in the supply water due to high water pressure can be prevented.

According to a fourth aspect of the present invention, by operating the operation display means or detecting the water supply speed and estimating the tap water pressure, when the tap water pressure is low, water is supplied simultaneously by two water supply means. By storing the operation of the water supply means in the storage means, in a house where the tap water pressure is low, the operation of the water supply means is stored once, and thereafter, the water can be automatically supplied by the two water supply means. The trouble of making this setting can be eliminated.

According to the fifth means for solving the problem, the second water supply means connected to the shower nozzle needs to keep the amount of water supplied to the shower constant, so that the flow rate is limited. By operating the first water supply means to supply water, the flow rate is not limited and the rinsing performance is not reduced.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIG. 2, the shower nozzle 12
Is provided at an upper position of the water supply nozzle 5 so that the laundry in the washing / dewatering tub 1 is supplied in a shower shape. The water supply valve 13 includes a first water supply valve (first water supply means) 13a and a second water supply valve (second water supply means) 13b.
The water supply valve 13a is connected to the water supply nozzle 5 through the internal hose 14.
And water is supplied to the washing and dewatering tub 1, and the second water supply valve 1 is connected thereto.
3b is connected to the shower nozzle 12 via the internal hose 15 so as to supply the laundry in the washing / dewatering tub 1 with a shower.

The control device 16 is configured as shown in FIG. 1, and the control means 17 sequentially controls each process of washing, rinsing and dehydration based on the setting contents inputted by the operation display means 18. Then, the drain valve 9, the water supply valve 13 and the motor 20 are sequentially controlled via the power switching means 19. The motor 20 drives the washing / dewatering tub 1 and the pulsator 8. The storage means 21 stores data necessary for the sequential control by the control means 17.

The cloth amount detecting means 22 detects the amount of the laundry in the washing and dewatering tub 1. The laundry is detected by the back electromotive force of the motor 20 during the inertial rotation after the power supply to the motor 20 is cut off. The amount is detected, and the output is input to the control means 17. The dirt detecting means 23 detects dirt on the laundry from the light transmittance of the washing liquid. The water level detecting means 24 detects the water level in the washing and dewatering tub 1 and inputs its output to the control means 17. Rotation speed detection means 2
Reference numeral 5 denotes the number of rotations of the washing and spin-drying tub 1 by detecting the number of rotations of the motor 20, and is constituted by a speed generator or the like.

The control means 17 is provided with a shower rinsing step for rinsing while sprinkling water from the shower nozzle 12 at least before or after dehydration in the washing step.
When supplying water to the washing and dewatering tub 1, the first water supply valve 13a and the second water supply valve 13b are simultaneously operated to supply water, and the second water supply valve 13b is operated during shower rinsing to supply water. ing.

The operation of the above construction will be described. When water is accumulated in the washing and dewatering tub 1 during washing or rinsing, the first water supply valve 13a and the second water supply valve 13b are driven and the first water supply is performed. Tap water is supplied from the valve 13a into the detergent case 6 through a small hole (not shown) provided on the lower surface of the water supply nozzle 5 via the internal hose 14, and water is supplied from the water supply port 7 to the washing and dewatering tank 1. 2 water supply valve 13b to internal hose 1
Water is supplied from the shower nozzle 12 to the washing / dewatering tub 1 through the tub 5. In addition, if the detergent is put in the detergent case 6 in advance when performing the reserved washing, the detergent is flushed to the washing and dewatering tub 1 by the tap water supplied from the water supply nozzle 5.

Next, when performing shower rinsing, the shower nozzle 12 is provided with a plurality of small holes (not shown) directed to the inner surface of the washing and dewatering tub 1 so that the washing nozzle 12 can be rotated. Tap water is sprinkled from the shower nozzle 12 via the second water supply valve 13b and the internal hose 15, and shower rinsing is performed.

In this manner, the tap water supplied from the shower nozzle 12 onto the laundry before the dehydration in the washing step pushes out the washing liquid held between the laundry and between the fibers by centrifugal force, and the tap water is mixed with the tap water. In addition, the detergent component between the short fibers diffuses into the tap water between the fibers. As a result, the laundry can be rinsed with a small amount of water.

As described above, according to this embodiment, the control means 1
Numeral 7 is such that the first water supply valve 13a and the second water supply valve 13b are operated simultaneously when water is supplied to the washing and dewatering tub 1, and the second water supply valve 13b is operated during shower rinsing to supply water. Therefore, the water supply time can be shortened.

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

The control means 17 in FIG. 1 operates only the first water supply valve 13a to supply water to the washing and dewatering tub 1 when water is accumulated in the washing and dewatering tub 1 during normal washing or washing with a reservoir. . When the operation setting is performed on the operation display means 18, the first water supply valve 1
3a and the second water supply valve 13b are operated at the same time to supply water, and the water is supplied by operating the second water supply valve 13b at the time of shower rinsing. Other configurations are the same as those of the first embodiment.

When the operation is described in the above configuration, the control means 17 drives only the first water supply valve 13a to store water in the washing and dewatering tub 1 at the time of normal washing or rinsing. Tap water is supplied from the water supply valve 13a to the detergent case 6 through a small hole provided on the lower surface of the water supply nozzle 5 via the internal hose 14, and water is supplied from the water supply port 7 to the washing and dewatering tub 1.

However, after the special mode is set by the operation display means 18 by, for example, turning on the "power" switch while pressing the "water level" switch and the "water flow" switch (both not shown). When the water level is set by the "water level" switch, the control means 17 determines that the mode is the low water pressure mode, and when the water is accumulated in the washing and dewatering tub 1 during washing or rinsing, the first water supply valve 13a and the second Are simultaneously driven to supply tap water from the first water supply valve 13a to the detergent case 6 through a small hole provided on the lower surface of the water supply nozzle 5 via the internal hose 14, and to supply water from the water supply port 7 for washing and washing. Water is supplied to the dewatering tub 1 and the washing and dewatering tub 1 is supplied from the shower nozzle 12 through the second water supply valve 13 b and the internal hose 15.
Water. Other operations are the same as those in the first embodiment.

As described above, according to this embodiment, the control means 1
7, when the operation setting is performed by the operation display means 18, the first water supply valve 13a and the second water supply valve 13b are simultaneously operated when supplying water to the washing and dewatering tub 1, and water is supplied. Since the water is supplied by operating the second water supply valve 13b means, by operating the operation display means 18, water is supplied simultaneously by the first water supply valve 13a and the second water supply valve 13b, It is possible to select whether to supply water only with the first water supply valve 13a, and when the tap water pressure is low, two water supply valves 13a are used.
The water supply time can be reduced by simultaneously supplying water at a and 13b.

The operation display means 18 may be provided with a dedicated water supply mode changeover switch or a display. However, it is rare that such water supply setting is frequently changed due to tap water pressure. Increasing the area of the operation display unit or increasing the number of parts is wasteful, and therefore, in this embodiment, the setting is performed by a special operation.

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

The control means 17 in FIG. 1 detects the rise time of the water level during the water supply process by the water level detection means 24, and when the rise time exceeds a predetermined value, the washing and dewatering tub at the time of washing or rinsing. The first water supply valve 13a and the second water supply valve 13b are operated simultaneously at the time of supplying water to the water supply system 1, and the water is supplied by operating the second water supply valve 13b at the time of shower rinsing. Other configurations are the same as those of the first embodiment.

The operation of the above arrangement will be described. When water is accumulated in the washing and dewatering tub 1 during normal washing or rinsing, only the first water supply valve 13a is driven, and the water is supplied from the first water supply valve 13a to the inside. Tap water is supplied into the detergent case 6 from a small hole provided on the lower surface of the water supply nozzle 5 via a hose 14, and water is supplied from the water supply port 7 to the washing and dewatering tub 1. At this time, the water level detecting means 24 detects the rising water level during a certain time of the water supply or the rising time to the certain water level, and when the degree of the water level rise falls below a predetermined value, it is determined that the water supply flow rate is small. Then, in addition to the first water supply valve 13a, the second water supply valve 13b is driven. Other operations are the same as those in the second embodiment.

As described above, according to the present embodiment, the control means 1
7 detects the water level rise time during the water supply process by the water level detection means 24, and when the water level rise time exceeds a predetermined value, the first water supply valve 13a and the second water supply valve 13a The water supply valve 13b is operated at the same time to supply water, and the second water supply valve 13b is operated at the time of shower rinsing so as to supply water. Therefore, tap water pressure can be estimated by detecting the water supply speed. When the water pressure is low, water can be supplied simultaneously with the first water supply valve 13a and the second water supply valve 13b to shorten the water supply time.

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

The storage means 21 in FIG. 1 stores the operation of the first water supply valve 13a and the second water supply valve 13b when water is stored in the washing and dewatering tub 1 during washing or rinsing. The control means 17 simultaneously operates the first water supply valve 13a and the second water supply valve 13b at the time of water supply to the washing and dewatering tub 1 at the time of washing or rinsing, based on the stored contents stored in the storage means 21. The second water supply valve 13b is operated at the time of shower rinsing to supply water. Other configurations are the same as those of the first embodiment.

The operation of the above arrangement will be described. When the first water supply valve 13a and the second water supply valve 13b are set to operate simultaneously when water is accumulated in the washing and dewatering tub 1,
The control means 17 stores this setting in the storage means 21. Thereafter, based on the contents stored in the storage means 21, the first water supply valve 13a and the second water supply valve 13b operate simultaneously to supply water from the start of water supply.

To cancel this setting, the user operates the operation display means 18 to turn on the "power" switch while pressing the "water level" switch and the "water flow" switch (both not shown). After the special mode is set by such operations as above, the setting is performed with the "water level" switch.

As described above, according to this embodiment, the control means 1
7 is based on the storage content stored in the storage means 21,
The first water supply valve 13a and the second water supply valve 13a
The water supply valve 13b is operated at the same time to supply water, and the second water supply valve 13b is operated at the time of shower rinsing to supply water. Therefore, the first water supply valve 13a and the second water supply valve 13b are simultaneously operated. When water is supplied, the operation of the first and second water supply valves 13a and 13b is stored in the storage means 21, so that in a home where the tap water pressure is low, water is automatically supplied thereafter by the two water supply valves 13a and 13b. This can eliminate the hassle of setting each time.

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

The control means 17 in FIG. 1 drives only the first water supply valve 13a at the time of water injection rinsing. Other configurations are the same as those of the first to fourth embodiments.

When the operation is described in the above configuration, the control means 17 drives only the first water supply valve 13a to store water in the washing and spin-drying tub 1 at the time of normal washing or rinsing, and the tap water pressure is reduced. If it is low, as shown in the second or third embodiment, the first water supply valve 13a and the second water supply valve 1
3b are driven simultaneously.

Next, when performing shower rinsing, the shower nozzle 12 is provided with a plurality of small holes directed to the inner surface of the washing and dewatering tub 1 so that the rotating laundry can be supplied with a second hole.
Tap water is sprinkled from the shower nozzle 12 through the water supply valve 13b and the internal hose 15 to perform shower rinsing.

Further, during the water injection and rinsing, water is supplied to a predetermined water level in the washing and dewatering tub 1, and the water supply is continued even after the pulsator 8 disposed at the bottom of the washing and dewatering tub 1 starts stirring and rinsing. At this time, only the first water supply valve 13a is driven.

For the second water supply valve 13b communicating with the shower nozzle 12, it is necessary to use a constant flow water supply valve or the like in order to keep the amount of water supplied to the shower constant. Therefore, the flow rate is restricted. Since the water is supplied by operating the first water supply valve 13a, the flow rate is not limited and the rinsing performance is not reduced.

[0049]

As described above, the present invention provides a first water supply means communicating with a water supply nozzle for supplying water into the washing and dewatering tub, and a shower nozzle for supplying water to the laundry in the washing and dewatering tub in a shower-like manner. A second water supply means communicating with the water supply means, a water level detection means for detecting a water supply water level of the washing and dewatering tub, an operation display means for setting a process and displaying operation, and sequentially controlling each process of washing, rinsing, and dehydrating. Control means for supplying water to the washing and dewatering tub by simultaneously operating the first and second water supply means, and operating the second water supply means during shower rinsing. By supplying water to the laundry in the washing and dewatering tub in the form of a shower from the shower nozzle, rinsing can be performed efficiently, achieving satisfactory rinsing performance and saving water. In Further, when the water supply to the washing and dewatering tank, in order to perform water supply to the first and second feed means are operated simultaneously, it is possible to shorten the water supply time.

Further, when the operation is set by the operation display means, the control means simultaneously operates the first and second water supply means when supplying water to the washing and dewatering tub, and supplies water when rinsing the shower. Since the water supply means is operated to supply water, it is possible to select whether to supply water simultaneously with two water supply means or to supply water alone by operating the operation display means.If the tap water pressure is low, the water supply time is reduced. In addition to shortening, when the tap water pressure is high, water can be supplied only by a single water supply means, and splashing of water in the supply water due to high water pressure can be prevented.

Further, the control means detects the water level rising time during the water supply process by the water level detecting means. If the water level rising time exceeds a predetermined value, the first and second water level are supplied to the washing and dewatering tub. The water supply means is operated at the same time to supply water, and the second water supply means is operated at the time of shower rinsing to supply water, so that the tap water pressure can be estimated by detecting the water supply speed, and the water supply time is slow. In this case, it is possible to reduce the water supply time by operating the two water supply means without bothering the user or the service person, and to prevent water from being scattered in the water supply due to high water pressure.

Further, there is provided storage means for storing the operations of the first water supply means and the second water supply means, and the control means supplies water to the washing and dewatering tub based on the contents stored in the storage means. Sometimes, the first and second water supply means are simultaneously operated to supply water, and the second water supply means is operated during shower rinsing to supply water. Therefore, in a home where the tap water pressure is low, this setting must be stored once. Thereafter, since the water is automatically supplied by the two water supply means, the trouble of setting each time can be eliminated.

Further, the control means operates the first water supply means at the time of water injection rinsing to supply water. Therefore, the second water supply means connected to the shower nozzle needs to keep the water supply amount of the shower constant. Therefore, even if the flow rate is limited, the first water supply means is operated to supply water during the water injection rinsing, so that the flow rate is not limited and the rinsing performance is not reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram of a fully automatic washing machine according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the fully automatic washing machine.

FIG. 3 is a longitudinal sectional view of a conventional fully automatic washing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Washing and dewatering tank 12 Shower nozzle 13a First water supply valve (first water supply means) 13b Second water supply valve (second water supply means) 17 Control means 18 Operation display means 24 Water level detection means

────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoshiaki Sakida, Inventor 1006 Odaka, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-57-81392 (JP, A) JP-A-60- 176691 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06F 33/02 D06F 39/08

Claims (5)

(57) [Claims] 1. A water supply nozzle for supplying water into a washing and dewatering tub.
A first water supply unit communicating with the second water supply unit, a second water supply unit communicating with a shower nozzle for supplying water to the laundry in the washing and dewatering tub in a shower shape, and a water level detection unit for detecting a water level of the washing and dewatering tub. Operation display means for setting a stroke and displaying operation, and control means for sequentially controlling each step of washing, rinsing, and spin-drying. The control means is configured to control the first time when water is supplied to the washing and spin-drying tub. And a second automatic water supply means for simultaneously supplying water by operating the second water supply means, and supplying water by operating the second water supply means during shower rinsing. And a control means for simultaneously operating the first and second water supply means at the time of supplying water to the washing and dewatering tub, and supplying water at the time of shower rinsing. The fully automatic washing machine according to claim 1, wherein the water supply means is operated to supply water. 3. The control means detects a water level rising time during a water supply process by a water level detecting means, and when the water level rising time exceeds a predetermined value, the first and second water level is supplied to the washing and dewatering tub. 2. The fully automatic washing machine according to claim 1, wherein the water supply means is simultaneously operated to supply water, and the second water supply means is operated to supply water at the time of shower rinsing. 4. A storage means for storing the operation of the first water supply means and the second water supply means, wherein the control means supplies water to the washing and dehydrating tub based on the contents stored in the storage means. 4. The fully automatic washing machine according to claim 2, wherein the water is supplied by operating the first and second water supply means at the same time, and the water is supplied by operating the second water supply means at the time of shower rinsing. 5. The fully automatic washing machine according to claim 2, wherein the control means operates the first water supply means at the time of rinsing water to supply water.