JPS5886193A - 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 provides an efficient washing machine with good foam discharge.

When washing in a drum-type washing machine, foaming is very intense and the outer tub is often filled with foam. This phenomenon is caused by detergents and water quality, but looking at the current situation in Japan, most of the detergents on the market are detergents with good foaming properties, and the water quality is also much higher than in Europe. It has low hardness.

Therefore, unless a special low-foaming detergent is used, the problem of foaming is unavoidable.Due to this, it is very troublesome to remove the foam at the time of emergency, and it is necessary to visit the cleaner every time. The current situation is that it does not work, and it is extremely inefficient.

In FIG. 1 showing a conventional drum-type washing machine, 1 is an outer tub, and a drum 2 is attached to a drum shaft 3 and a bearing 4 provided on the outer tub 1.
It is rotatably mounted in the outer tank 1 via the. Reference numeral 6 denotes a gear attached to one end surface of the drum 2, which is rotated via a shaft 8 and a gear 9 by a motor 7 located in a lid 6 covering the upper part of the outer tub 1, thereby rotating the drum 2. 10
11 is a drainage hose, and 11 is a through hole formed in the peripheral wall of the drum 2. Generally, 3 to 51111 round or square holes are formed on the entire surface of the drum peripheral wall.

When such a drum-type washing machine is used to wash clothes with a normal detergent that does not have low foaming, the inside and outside of the drum will be filled with bubbles after washing.

Generally, water is drained after washing, but in this case, even if the water is drained, most of the foam remains inside and outside the drum without being drained. Then, even after watering and scrubbing, the bubbles still do not disappear, and it does not look like the scrubbing has been completed at all. In order for it to look stale, that is, for the bubbles to disappear, it is necessary to add water, rinse, and drain water about 6 to 6 times. If water is to be supplied, drained, and drained many times in this manner, the work is extremely troublesome, and it is also undesirable from the point of view of saving water.

It is also possible to remove the foam by first taking out the laundry and washing the inside of the outer tub and the drum with a permanent soap, but this method has the disadvantage that the work becomes more troublesome.

On the other hand, if a low-foaming detergent is used, the result will be satisfactory after 3 washes, both visually and in terms of dilution. It's difficult.

Because of the above, drum-type washing machines are extremely difficult to use in Japan, but drum-type washing machines are less likely to damage fabrics, and because they can be washed with a low bath ratio, they require less water and detergent. The present invention, which is not only very rational but also energy-saving and resource-saving, eliminates the above-mentioned conventional drawbacks and efficiently discharges bubbles to improve the efficiency. Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 2, 3, and 4.

In the drawing, reference numeral 12 denotes a water overflow intake provided in the outer tank 1, which has the same length y in the axial direction of the drum 2 so that water overflows when the rated water level reaches 1-.

14 is an overflow drain provided at the bottom of the overflow intake 12;
15 is an overflow drain hose connected to the overflow drain port 14, 16
are slit-like pores formed in the peripheral wall of the drum 2.

Next, the operation will be explained in detail.

During washing, a drain hose 10 is locked to the outer tub 1, and when washing is finished, the drain hose 1o is removed from the outer tub 1 to drain the water.

Next, the drain hose 10 is connected to a water faucet, and water is poured by rotating the drum 2 while pouring water.

In this case, the bubbles existing between the outer tank 1 and the drum 2 and inside the drum 2 float on the injected water, and when the injected water level reaches the rated water level 13, the injected water flows from the overflow intake 12. It flows out, but at this time, the bubbles also float on the water and flow out. At this time, since the pores 16 are slit-shaped, the bubbles in the drum 2 flow out better than in conventional round holes. Also, the length of the overflow intake port 12 in the axial direction of the drum 2 is the same.

Because of the long length, the water flows along the peripheral wall of the drum 2, and as a result, the bubbles floating on the water can be easily removed from the overflow intake port 1.
It flows into 2.

Further, as the drum 2 rotates, the foam receives centrifugal force in the radial direction, making it easier to flow in the direction of the overflow intake 12 provided in the five rotational directions.

Moreover, since the overflow water inlet 12 is provided in the drum rotation direction, the foam generated during washing is gradually discharged from the overflow water inlet 12 due to the force generated by the rotation of the drum 2, reducing the amount of foam remaining after washing. This makes it easier to pour water.

As described above, one aspect of the present invention is to rotatably house a drum having slit-like pores in one circumferential wall in an outer tank, and to provide an overflow inlet along the axial direction of the drum in the side wall of the outer tank. Therefore, it is of great industrial value to provide a washing machine with good flushing efficiency, which can discharge foam very efficiently by pouring water and flushing.

[Brief explanation of drawings]

Figure 1 is a sectional view of a conventional drum-type washing machine;
The figure is a sectional view of a drum-type washing machine according to an embodiment of the present invention, FIG. 3 is a sectional view taken along line ABC in FIG. 2, and FIG. 4 is a perspective view of an outer tub of the drum-type washing machine. 1...Outer tank, 2...Drum, 12.
...Overflow water intake, 16... Pore. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 11 Figure 2 Figure 3 Figure 5 Figure 4

Claims (1)

[Claims] A washing machine in which a drum having slit-like pores in its circumferential wall is rotatably housed in an outer tank, and an overflow inlet is provided along the outer side of the axis of the drum in a side wall of the outer tank.