JPH049559B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for rinsing a single-tub type dehydrating washing machine.

Conventional structure and its problems In conventional single-tank dehydrating washing machines, the rinsing method after washing is a so-called "water supply rinse" in which water is supplied into the tank while rotating a pulsator for agitating the clothes.
It was hot. However, this method has the disadvantage of using a large amount of water, so for the first rinse, water is temporarily stored in a tank and the water supply is turned off to perform the rinsing process, a so-called ``pre-rinse.'' However, with these methods, it is necessary to temporarily store water in the aquarium, and in a normal household dehydrating washing machine, the amount of water that is supplied to the aquarium at one time is around 35%.
Efforts to conserve water were still needed.

Therefore, for example, as proposed in Japanese Patent Publication No. 52-32185, a so-called dewatering and rinsing method, in which water is supplied while rotating the dehydrating/washing tub, or water is supplied during inertial rotation, has been proposed as a water-saving method. It was done.

However, in the above example, when water is supplied by rotating the spin-drying/washing tub by inertia, even if the water is being fed while the spin-drying/washing tub is in the middle of decreasing rotation, if the water hits the clothes inside, the water may splash. There was a risk of water droplets coming out from the upper open end of the water tank or the dehydration/washing tub.

In order to prevent water splashing, a large number of small holes are formed, for example, as in the "Washing machine water inlet" proposed in Japanese Patent Application Laid-open No. 51-18150 (Japanese Patent Publication No. 57-48239).
The idea is to supply water in the form of a shower to eliminate the problem of water splashing. In this case, it is necessary to make the water inlet into a complicated shape, and it is difficult to drain the water after the water supply is finished, so a hole with a slightly larger diameter is required for draining, and the water flowing out from the large diameter hole does not splash. There was also a risk that this could result in an accident.

OBJECTS OF THE INVENTION The present invention takes into consideration the drawbacks of the conventional rinsing methods and aims to provide a method for rinsing a dehydrating washing machine that prevents water from splashing when water is poured and has a water-saving effect.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a one-tub type dehydrating washing machine that performs at least one rinsing process, a draining process after the washing process, and an intermittent dewatering rotation to remove bubbles, and then performs a temporary dehydrating and washing tub. After that, the dewatering/washing tub is rotated slowly intermittently while opening the drain valve at the bottom of the water tank, and the water supply solenoid valve is operated continuously or intermittently while rotating at least once during the rinsing process time. This is a program that has a rinsing process that automatically supplies water.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 is a longitudinal sectional view of a dehydrating washing machine according to the present invention.

In the figure, a water tank 3 is suspended from an upper corner of the outer box 1 by a plurality of support rods 2 for anti-vibration support. Inside the water tank 3, a dewatering/washing tank 5 having a large number of small holes 4 in the side wall or bottom is rotatably arranged. A driving motor 6, a bearing box 7, a drain valve 8 for opening and closing a waterway, and a solenoid valve 9 for driving the drain valve and for opening and closing the dewatering brake are fixed to the outer bottom of the water tank 3. A panel part 10 is placed above the outer box 1, and a water supply solenoid valve 11 is provided inside the panel part 10. When the water supply electromagnetic valve 11 is opened, water is supplied from the external water supply hose 12 through the water supply port 13 into the inner diameter of the annular balance ring 14 fixed to the upper opening edge of the dewatering/washing tub 5.

A panel sweater 15 for stirring the clothes is rotatably disposed at the inner bottom of the dewatering/washing tub 5, and when washing is desired, water is stored in the water tank 3 and stirred.

Now, after the washing process is finished, drain the water from the water tank 3 to the drain valve 8.
is opened and discharged, and then the washing water containing soap in the dehydration/washing tub 5 is discharged. Furthermore, after that, the motor is energized intermittently and the dehydration/washing tub 5
So-called intermittent dehydration drive is performed, such as by gradually increasing the rotation speed of the dehydration/washing tub 5, and the suds are removed while preventing soapy water from forming a large amount of foam in the aquarium without suddenly increasing the rotation of the dehydration/washing tub 5. Perform dehydration operation. After completing a predetermined bubble removal and dehydration operation, the rotation of the dehydration/washing tub 5 is temporarily and completely stopped. As shown in FIG. 1, the clothes 16 are brought into close contact with the side wall of the dehydration/washing tub 5 due to a slight centrifugal force. Meanwhile, from this state, the water supply solenoid valve 11 is opened to supply water into the tank. At this time, water may be supplied continuously or intermittently. This is set based on the total time of actual water supply operation.

On the other hand, the drain valve 8 at the outer bottom of the water tank is kept open so that the water that has passed through the clothes can be drained.

The water supply port 13 does not need to have a particularly complicated shape, but the water supply direction should be set so that the water is supplied to the side wall of the spin-drying/washing tub 5 as much as possible, so that the water hits the clothes that are biased against the side wall due to centrifugal force. Make it.

Now, in the above-mentioned state, the spin-drying/washing tub 5 has been released from the spin-drying brake by the operation of the electromagnetic valve 9, so that spin-drying rotation is possible. At this point, the drive motor 6 is repeatedly energized for a very short period of time and turned OFF for a slightly longer period of time, thereby performing extremely slow rotation. Therefore, the dehydration/washing tub 5 is
It causes a rotation that is close to a simple movement that does not reach normal dehydration rotation.

Therefore, the water supply does not cause water droplets to scatter due to the repulsion caused by the rotation of the dewatering/washing tub as in the conventional case.

This slow rotation is, for example, a new rinse process time of 1
In terms of minutes, it is desirable to limit the rotation to at most 5 revolutions.

After passing through the above steps, the dehydration/washing tub 5 is again dehydrated to remove bubbles and water and detergent contained in the clothes are removed by centrifugal force. In addition, in this new dehydration after rinsing, since the detergent in the clothes has already been diluted, there is no risk of a large amount of foaming in the water tank even if the dehydration speed is increased rapidly, so the dehydration speed is usually reduced. It is also safer to perform intermittent drive in accordance with the intermittent drive operation after washing water is drained.
Either method may be used. Any of these may be set based on constraints such as a time switch or a contact switching cam such as an electronic timer using a microcomputer that has come into widespread use in recent years, or the number of steps of the microcomputer.

Now, after the above-mentioned rinsing with intermittent water supply and the subsequent bubble removal and dehydration process, the second rinsing will be carried out. Hey, Pulsator 1
Rinsing is performed using the conventional agitation method of rotating the washing machine. This is because although detergent components are sufficiently diluted by the method of the present invention, it is more effective to remove lint, dirt, etc. that adhere to clothing by rotational agitation of the pulsator 15.

FIG. 2 is a process operation diagram for carrying out the new rinsing method of the present invention. The energization operation states of the water supply solenoid valve 11, motor 6, and drain solenoid valve 9 during each process are shown.

FIG. 3 shows an example of the time limit for intermittent dewatering in FIG. 2 and an example of the time limit for slow rotation. In the embodiment, the intermittent bubble cutter drive is applied to the motor 6 with electricity for 4 seconds ON and 6 seconds OFF to prevent a rapid increase in rotation speed and to cause a gradual increase in dehydration rotation. On the other hand, Fig. 3b
is a timed example of slow rotation, an extremely minute time of 0.3 seconds.
An ON current and an OFF time of approximately 2 seconds were applied to the motor 6.

FIG. 4 shows how the rotation speed of the dehydration/washing tub increases over time during the intermittent drive of the dehydration/dehydration tub and the state during slow rotation. The major difference between the two is that in the dehydration rotation with intermittent suds removal drive, the rotation gradually increases without the dehydration/washing tub stopping, whereas in the slow rotation, the rotation is only slightly energized (0.3 in Figure 3). The reason is that the dehydration/washing tub stops in the interval between energization of 0.3 seconds and the next 0.3 seconds). Then, if the rotation is performed about 4 to 5 times during the rinsing time, the water will be sufficiently applied to the clothes.

In general household washing machines, the capacity is generally 3 kgf to 4 kgf when drying clothes, and the amount of water that enters the water tank is often around 35 to 50 kgf. Therefore, in conventional rinsing, the above amount of water is required per rinse, but when the slow rotation of the present invention is performed for about 1 minute, the normal water discharge amount is 10 to 15/min. Get about 25 or more water savings. Especially when there are not many clothes, a water level switch (not shown) is usually set to a low water level capacity and washed, but depending on the capacity, there is a risk of forgetting to change the water level switch each time. In such cases, the present invention is particularly effective.

Effects of the Invention As described above, according to the present invention, it is possible to obtain a water-saving rinsing method using a simple system that eliminates water splashing during water injection and does not require forming a particularly complicated shape in the water injection port. . There is no problem in implementing it, as it can be done simply by setting a time limit on a time switch or a microcomputer, and its value is great.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a dehydrating washing machine embodying the present invention, Fig. 2 is a process operation diagram of one embodiment of the present invention, Fig. 3 a and b are diagrams showing an example of the timing of the main parts of the same, Fig. 4 is It is a figure which shows the rotating state of the dehydration and washing tub same as the above. 3...Water tank, 5...Dehydration/washing tub, 6...Motor, 8...Drain valve, 9...Solenoid valve, 11...Water supply solenoid valve, 13...Water supply port.

Claims (1)

[Claims] 1 A dehydration/washing tank is installed in a water tank that is suspended from the outer box and supported with vibration isolation, so that it can be used for washing, rinsing,
A series of processes such as dehydration are automatically controlled according to a preset program. At least one rinse process of a single-tub type dehydrating washing machine is performed, and the drain process and suds removal intermittent dehydration rotation after the washing process is completed. After that, the dehydration/washing tub is temporarily stopped, and then the drain valve at the bottom of the water tank is opened while the dewatering/washing tub is slowly rotated intermittently, and the washing tub is rotated at least once during the rinsing process time, and the water supply is continued. A method for rinsing a dehydrating washing machine, comprising a program having a rinsing step in which water is continuously or intermittently supplied through the operation of a solenoid valve, and water is allowed to fall approximately near the outer periphery of a tub.