JPS58127698A - Two-tub type washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a two-tub type washing machine, and particularly to a two-tub type washing machine in which clothes are rinsed in a dehydration tank.

Traditionally, in dual-tub washing machines, clothes were washed and rinsed in the washing tub, and clothes were dehydrated in the dehydration tub. Types of washing machines that can be used to rinse clothes have come into use.

In conventional two-tub washing machines in which clothes are rinsed in a spin-drying tank, a water supply pipe is installed above the center of the spin-drying tank to supply water into the spin-drying tank. Clothes are rinsed while the dehydration tank is running, or the water supply pipe is not provided and water is supplied when the dehydration tank is stopped, thereby rinsing the clothes.

However, in conventional washing machines of this type, there is a problem in that the water containing detergent components impregnated into the clothes at the bottom of the dehydration tank cannot be sufficiently rinsed away, and the amount of water used for rinsing is also limited. There is a problem in that the amount of rinsing required is the same as when rinsing is performed.

The present invention has been made in view of the above-mentioned conventional problems.
The purpose is to provide a two-tub type washing machine that has less uneven rinsing and requires less water for rinsing.

To achieve the above object, the present invention provides a two-tub washing machine in which clothes are rinsed in a washing tub and a dehydrating tub, in which the dehydrating tub is doubled into an outer tub and an inner tub, and the outer tub faces toward the upper opening. The inner diameter gradually expands and a dehydration hole is formed only in the upper part of the dehydration tank.After water is poured into the dehydration tank, it is operated at low speed for rinsing, and then operated at high speed for dehydration. The method is characterized in that the dehydrated water is discharged from the dehydrating hole at the top of the outer tank.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a two-tub washing machine according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a dewatering tank 1 of a two-tub washing machine according to the present invention, and FIG. 2 shows its electric circuit.

In the present invention, the dehydration 1 is duplicated into an outer tank 7A and an inner tank 7B. The upper opening of the outer tank 7A can be opened and closed by a cover 2, and a shaft 5 driven by an electric motor 11 is fixed to the lower side with a metal fitting 6, and the balance during rotation is maintained by a balancer 4. There is.

Here, in the present invention, the inner diameter of the outer M7A gradually increases toward the upper opening, and the dehydration hole 3 is formed only in the upper part. Furthermore, an inner tank 7B made of a resinous elastic material is removably mounted inside the outer tank 7A. This inner tank 7B is formed into a substantially cylindrical shape, and its inner diameter gradually decreases toward the upper opening.

In this implementation fpH, a U-shaped groove is formed in the upper part of the outer tank 7A, and a balancer 4 made of a material having a relatively high specific gravity such as iron is inserted into the U-shaped groove, and the cover 2 is inserted into the outer tank 7A. The balancer 4 is sealed within the U-shaped groove by welding to the edge of the opening to close the U-shaped groove.

As shown in FIG. 2, this washing machine is equipped with a washing motor 8 and a dewatering motor 11, and the double-chamber motors 8 and 11 are induction motors each having a capacitor 10.1.
2 are connected to form a capacitor motor.

A timer 9 is connected to the laundry capacitor 8 button, and by switching the contacts of the timer 9, the laundry motor 8 can be automatically switched between forward and reverse rotation.

On the other hand, the dewatering motor 11 is connected to the a terminal of a switch 17 provided in the timer 13, and the water supply valve 15 is connected to the b terminal thereof. A brake 1f magnet 16 is connected to the switch 18 of the timer 13, and the other ends of the dewatering motor 11, the water supply valve 15, and the electromagnetic magnet 16 are connected to a power line. Further, the other ends of the switches 17 and 18 are connected to one end of a main switch 14 provided in the timer 13, and the other end of the main switch 14 is connected to the other power line.

The two-tub washing machine according to the present invention has the above-mentioned structure, and its operation will be explained below with reference to the chart in FIG. 3.

Open the cover 2, put the washed clothes into the inner tank 7B, operate the timer 13, and turn on the main switch 14. Then, the switch 17 is switched to the b side, the water supply valve is energized, and water is supplied to the inner tank 7b.

Next, the switch 17 is switched to side b), power is supplied to the dewatering motor 11, and the rotation of the dehydrating tank 1 is started. When the dehydration tank 1 rotates due to this sound, a fourth
As shown in the figure, the dewatered water is discharged through the path 19, and the dehydrated water flows upward along the inner wall of the outer tank 7A. Then, when the dehydration reaches the position of the dehydration hole 3 in the outer tank 7, the increase in rotation of the dehydration tank 1 is switched to the decrease in rotation by stopping the power supply to the electric motor 11.

In this way, when the rotation of the washing tub 1 changes from increasing to decreasing in the middle, the dehydrated water forcibly discharged from the clothes permeates through the lower layer of clothing through the path 20 shown in FIG. is thoroughly rinsed.

Further, the switch 17 is again turned to the a side, and the drive of the electric motor 11 is restarted, and the rotation speed of the electric motor is increased to a constant rotation speed. As a result, the dewatering tank 1 dehydrates the clothes, and the dehydrated water is discharged to the outside of the dehydrating tank 1 through the dehydrating hole 3.

After that, the electric motor 110 is de-energized and the switch 1 is turned off.
8 operates, the dynamic magnet 16 is driven, and the dehydration tank 1
Zero rotation stops.

In this embodiment, the above operations are repeated two to three times, and rinsing and dehydration are repeated.

As explained above, according to the present invention, after pouring water, the clothes are slightly dehydrated, and the dehydrated water is then injected again from the lower layers of the clothes, so that the lower layers of clothes can be sufficiently rinsed, and therefore the clothes can be uniformly washed. Can be rinsed. Moreover, by doing this, the amount of water supplied can be reduced to about half of the conventional amount, and furthermore, since the rinsing efficiency is good, the washing time can be shortened.

In addition, although iron is often contained in the water supply, if water containing iron is used for the water supply, the present invention can perform rinsing uniformly, so that there is no need to stain a part of the clothes with iron. There isn't. Furthermore, measurements have confirmed that the concentration of detergent remaining in the lower layer of clothing has been reduced from the conventional level of about 70 ppm to about aoppm.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the configuration of a dehydration tank according to a preferred embodiment of the present invention;
Fig. 2 is an electric circuit diagram of a preferred embodiment of the present invention, Fig. 3 is a chart diagram explaining the operation of the embodiment, and Figs. 4 and 5 show the flow of water in the dehydration tank in this embodiment. It is an explanatory diagram, 1... Dehydration tank, 3... Dehydration hole, 7A... Outer tank, 7
B... Inner tank, 11... Dewatering motor, 13... Timer, 15... Fig. 3 → H1pi''I No. 412] Brown 5 Fig. 0

Claims (1)

[Claims] 1. In a two-tub washing machine that is equipped with a washing tub and a dehydration tank and rinses clothes in the dehydration tank by injecting water into the dehydration tank, the dehydration tank is doubled into an outer tank and an inner tank, and the outer tank has an opening at the top. The inner diameter gradually expands toward the top, and a dewatering hole is formed only in the upper part.After water is poured into the dehydrating tank, it is operated at low speed for rinsing, and then operated at sieving speed. A two-tub type washing machine characterized in that the dewatering process is carried out through the dehydration hole in the upper part of the outer tank.