JPH0956969A - Washing control method for washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cloth damage of washing to the minimum and also obtain a large cleaning effect by conducting washing and rinsing processes by plural kinds of combinations of proportions of ON-time to OFF-time at the time of rotating a washing and dewatering basket and a stirring blade integrally. SOLUTION: In washing process, a motor 8 is intermittently operated in the forward direction. That is, the cycle of several seconds of ON-time and several seconds of OFF-time combined arbitrarily is performed for several minutes, and at the ON-time, a clutch part 10 is turned on by a driving magnet to release the brake of a washing and dewatering basket 3, thereby, the washing and dewatering basket 3 is intermittently rotated in the forward direction. Thus, delicate clothing is turned in the water containing a detergent or the like to be washed. Subsequently, after the operation for the minute and twenty seconds, the motor 8 is stopped for several minutes to perform a kind of washing by soaking, so that the cleaning efficiency can be improved and the temperature rise of the motor 8 is suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling a washing machine for improving the fabric pain of laundry in the washing and rinsing process.

[0002]

2. Description of the Related Art In the conventional washing process, a washing effect is obtained by rubbing the water flow generated by fixing the washing / dehydrating tub and rotating the stirring blade with the rib of the washing / dehydrating tub or the stirring blade and the laundry. Was generally used.

[0003]

As described above, in the method of obtaining the cleaning effect by rubbing the laundry in the washing / dehydrating tank or the rib of the stirring blade against the laundry, the laundry is unnecessarily damaged. Not suitable for washing delicate clothes and clothes with dry marks.

An object of the present invention is to provide a method for controlling a washing machine which can minimize the fabric pain of laundry and obtain a great cleaning effect when washing delicate clothes or clothes having dry marks. Is to provide.

[0005]

The first feature of the present invention is to:
A washing / dehydrating tub, a stirring blade provided in the tub, a means for supplying water to the tub, a drive source for rotating the tub and the stirring blade, and a program control unit. In a method for controlling a washing machine in which the stirring blade is integrally rotated in one direction intermittently, a combination of several kinds of ON time and OFF time ratios when the washing / dehydrating tub and the stirring blade are integrally rotated. A washing control method for a washing machine is characterized by performing a washing and rinsing process.

A second feature of the present invention is a washing and dehydrating tank,
A stirring blade provided in the tank, and means for supplying water to the tank,
A cleaning system that includes a drive source that rotates the tank and the stirring blades and a program control unit, and intermittently rotates the washing / dehydrating tank and the stirring blades in one direction intermittently, and does not operate the drive source at all. In a method of controlling a washing machine that uses pickling and placing washing, the washing and rinsing steps are performed by combining several types of ratios of ON time and OFF time when the washing / dehydrating tub and the stirring blade are integrally rotated. And the washing control method of the washing machine.

A third feature of the present invention is a washing and dehydrating tank,
A stirring blade provided in the tank, and means for supplying water to the tank,
In a washing control method for a washing machine including a drive source for rotating the tub and the stirring blades, and a program control section, at least when washing clothes with a dry mark, the washing water level of the washing and dehydrating tub is set to a low water level. And a washing and rinsing process are performed by intermittently rotating the washing / dehydrating tub and the stirring blade integrally in one direction to perform a washing and rinsing process.

A fourth feature of the present invention is a washing and dehydrating tub,
A stirring blade provided in the tank, and means for supplying water to the tank,
In a washing control method for a washing machine including a drive source for rotating the tub and the stirring blades, and a program control section, at least when washing clothes with a dry mark, the washing water level of the washing and dehydrating tub is set to a low water level. And wash and rinse steps by rotating the washing and dehydrating tub and the stirring blade integrally in one direction intermittently for washing and rinsing, and when washing the bedding, the washing water level of the washing and dehydrating tub is set. A washing machine control method is characterized in that a washing and rinsing process is performed by setting a high water level and intermittently rotating the washing / dehydrating tub and the agitating blade integrally in one direction.

[0009]

[Operation] When washing delicate clothes or clothes with a dry mark, etc., a washing process in which the washing / dehydrating tank and the stirring blade are integrally rotated in one direction by combining several kinds of ON / OFF time ratios By soaking and soaking washing process, water or water containing detergent removes dirt such as dust and sweat from delicate clothes.
Cloth pain such as delicate clothes is considerably reduced, and
A great cleaning effect can be obtained.

[0010]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an outline of a fully automatic washing machine (single tub type washing machine).

The outer frame 1 has a water receiving tank 2 inside.
The washing / dehydrating tub 3 is rotatably provided in the water receiving tub 2. The water receiving tank 2 is supported on the outer frame 1 by a suspension rod 4 via a spring 5.

The stirring blade 6 is rotatably supported in the washing / dehydrating tub 3. A lower base 7 is attached to the lower surface of the water receiving tank 2.

A main transmission means 11 including a motor 8 as a drive source, a drive transmission mechanism 9 and a clutch portion 10 is supported by the lower base 7. The drain valve 12 is also attached to the lower base 7.

The drain valve 12 has a drain hole 13 and a water receiving tank 2
Communicates with the bottom of the. A drive shaft 14 of the stirring blade 6 and a drive hollow shaft 15 of the washing / dehydrating tub 3 are provided above the main transmission means 11.
Is provided.

The seal portion 16 is a hollow drive shaft 15 and a water receiving tank 2.
It seals the gap between and. Pulley 1 of motor 8
7 and the pulley 18 of the main transmission means 11 are connected by a belt 19.

The rotation of the motor 8 is performed by the pulley 17 and the belt 1.
It is transmitted to the stirring blade 6 via 9, the pulley 18, the clutch unit 10, the drive transmission mechanism 9, and the drive shaft 14.

After the drive transmission mechanism 9 is attached to the washing / dehydrating tub 3,
It is the same as the stirring blade 6 except that it is transmitted via the driving hollow shaft 15.

A lid 2 is provided on the upper portion of the outer frame 1.
0. The operation panel 21 is provided with a control device 22 including a time switch. The control device 22 is composed of an electronic control unit using a microcomputer.

The water supply port 23 is provided above the washing / dehydrating tub 3. As the water supply port 23, it is preferable to use a faucet in the form of a shower pouring water into the washing / dehydrating tub 3. The water supply valve 24 supplies or stops the supply of water to the water supply port 23.

A pressure switch 25 for detecting the water level in the washing / dehydrating tub 3 is connected to an air trap 26 provided below the water receiving tub 2 via a tube 27. A drain hose 28 is connected to the drain valve 13.

Operation control of the motor 8, operation control of a drive magnet (illustrated) for operating the clutch unit 10, water supply valve 24
Control of a drive magnet (not shown) for operating the motor, operation control of a drive small motor (not shown) for operating the drain valve 12, drive magnet for operating the brake of the washing and dehydrating tub 3 (drive magnet of the clutch part) In some cases, the operation control is performed by taking in a signal from the pressure switch 25 and controlling it by a program of the control device 22.

FIG. 2 shows the operation timing of each part of the present invention from the water supply process to the washing process to the draining process.

In the water supply stroke, the drive magnet is activated, the water supply valve 24 is turned on, and the water supply stroke proceeds. The water supply process takes about 1 minute and 30 seconds.

Since a water supply column having a normal tap pressure is about 20 liters / minute, 30 liters of water is supplied to the washing / dehydrating tank 3. The water volume of 30 liters corresponds to the minimum water level in terms of the set water level.

When the minimum water level is reached, the pressure switch 25 is turned on and at the same time the water supply valve 24 is turned off. This completes the water supply process.

Although the time of the water supply process was set to 1 minute and 30 seconds, it takes more time until the pressure switch 25 is turned on when the water pressure is low. When the water pressure is extremely low, the control device 22 operates so that the washing operation program is stopped. In such a case, washing cannot be performed due to an abnormal water supply.

When the pressure switch 25 is turned on and this signal is input to the control device 22, the process proceeds to the next step, the washing step. In the washing process, the motor 8
Perform intermittent rightward (forward) operation. A cycle in which the ON time is several seconds and the OFF time is several seconds is performed for several minutes.

Then, the clutch portion 1 is formed by the drive magnet.
Since the brake of the washing / dehydrating tub 3 is released by keeping 0 in the ON state, the washing / dehydrating tub 3 is intermittently rotated in the forward direction. That is, delicate clothes and the like together with the washing / dehydrating tub 3 are washed by being spun in water containing water or detergent.

After the operation of 1 minute and 20 seconds, the motor 8 is stopped for several minutes. This is a so-called kind of soaking and washing, so that the washing rate can be improved and the temperature rise of the motor 8 can be reduced.

Particularly, a cycle of 8 seconds ON and 12 seconds OFF is performed for 1 minute 20 seconds, and after 4 minutes 40 seconds stop, 5 seconds O
In the washing process in which the N, 10 second OFF cycle was performed for 1 minute and 30 seconds and stopped for 4 minutes and 30 seconds, the most delicate clothes had less cloth pain and a great cleaning effect was obtained.

After the washing process is completed, the drive magnet is activated to turn on the drain valve 13 to drain the water used in the washing process.

FIG. 3 shows a means for preventing the laundry from popping out.

After the laundry is put in the washing / dehydrating tub 3, the laundry pressing plate 29 is used to hold the laundry so that it does not move above the washing / dehydrating tub 3. The laundry pressing plate 29 enables efficient washing and rinsing of laundry in water or water containing detergent.

FIG. 4 shows the operation timing when the rotary water supply is used in the water supply process before the washing process.

In the water supply process before the washing process, the drive magnet is activated, the water supply valve 24 is turned on, and the water supply process proceeds. During this water supply process, the motor 8 is intermittently operated in the right direction (forward direction). The ON time is 0.6 seconds and the OFF time is 0.3 seconds. Since the brake of the washing / dehydrating tub 3 is released by keeping the clutch part 10 in the ON state by the drive magnet, the washing / dehydrating tub 3 is intermittently rotated in the forward direction. That is, since water is supplied from above while the washing / dehydrating tub 3 is being slowly rotated, the laundry is evenly sprinkled with water. Therefore, the volume of the laundry is reduced so that the laundry is naturally immersed in the bottom of the washing / dehydrating tank 3 while absorbing water.

In addition to the above, the same control can be performed when washing bedding such as a futon or a blanket, but in this case, it is necessary to set the washing water level to a high water level and the washing and washing at that time. It goes without saying that the rotation stop of the dehydration tank 3 can be appropriately selected according to this.

[0038]

According to the present invention, when washing delicate clothes or clothes having a dry mark,
Turns the washing / dehydrating tank and the stirring blades on and off in one direction
Depending on the washing process in which several kinds of OFF time ratios are combined and rotated and the soaking and washing process, water or water containing detergent removes dirt such as dust and sweat adhered to delicate clothing. Cloth pain such as clothes is considerably reduced, and a great cleaning effect is obtained.

[Brief description of drawings]

FIG. 1 is an overall schematic view of a fully automatic washing machine.

FIG. 2 is a diagram showing an operation timing from a water supply process to a drainage process.

FIG. 3 is a view showing a means for preventing the laundry from jumping out.

FIG. 4 is a diagram showing operation timing when rotary water supply is used in a water supply process.

[Explanation of symbols]

3 ... Washing / dehydrating tank, 6 ... Stirrer, 8 ... Motor, 10 ... Clutch section, 12 ... Drain valve, 22 ... Control device, 2
3 ... Water supply port, 25 ... Pressure switch.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyasu Kamano 1-1-1, Higashitaga-cho, Hitachi-city, Ibaraki Prefecture Incorporated company Hitachi, Ltd. Electric Appliances Division Taga Headquarters (72) Inventor Yasushi Nobu, Ibaraki 1-1-1 Higashitaga-cho, Hitachi-shi Inside the Taga Headquarters, Electrical Equipment Division, Hitachi, Ltd.

Claims (6)

[Claims] 1. A washing / dewatering tub, a stirring blade provided in the tub, water supply means for the tub, a drive source for rotating the tub and the stirring blade, and a program control section, A method for controlling a washing machine in which a washing / dehydrating tub and the stirring blade are integrally rotated intermittently in one direction, comprising: an ON time and an OFF time when the washing / dehydrating tub and the stirring blade are integrally rotated. A washing control method for a washing machine, characterized in that washing and rinsing steps are performed by combining a plurality of ratios. 2. A washing / dehydrating tub, a stirring blade provided in the tub, a water supply means for the tub, a drive source for rotating the tub and the stirring blade, and a program control section, In a washing machine control method using a washing method in which a washing / dehydrating tub and the stirring blade are integrally intermittently rotated in one direction and a soaking and placing washing in which the drive source is not operated at all, the washing / dehydrating tub and the A washing control method for a washing machine, characterized in that the washing and rinsing steps are performed by combining several kinds of ratios of ON time and OFF time when rotating the stirring blade integrally. 3. The washing control method for a washing machine according to claim 1, wherein a washing and rinsing step is performed by providing a means for preventing the laundry from jumping out in the washing / dehydrating tub. . 4. When water is supplied to the washing / dehydrating tub before the washing process, the tub is rotated at a speed slower than a normal dewatering speed, and water is supplied by descending from the upper part of the tub. The washing control method for a washing machine according to claim 1 or 2. 5. A washing machine equipped with a washing / dewatering tub, a stirring blade provided in the tub, water supply means for the tub, a drive source for rotating the tub and the stirring blade, and a program control section. In a machine washing control method, at least when washing clothes with a dry mark is set to a low water level in the washing / dehydrating tub, and the washing / dehydrating tub and the stirring blade are integrated in one direction. A method for controlling a washing machine, comprising the steps of: intermittently rotating to perform a washing and rinsing process. 6. A washing machine equipped with a washing / dehydrating tub, a stirring blade provided in the tub, water supply means for the tub, a drive source for rotating the tub and the stirring blade, and a program control section. In the washing control method for a machine, at least when washing clothes with a dry mark is set to a low water level in the washing / dehydrating tub, and the washing / dehydrating tub and the stirring blade are integrated in one direction. When the bedding is washed, the washing water level of the washing / dehydrating tub is set to a high water level, and the washing / dehydrating tub and the stirring blade are integrated as one unit. A method of controlling a washing machine, which comprises intermittently rotating in one direction to perform a washing and rinsing process.