JPH0975586A - Wholly automatic washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve drainage capacity through smooth drainage upon dehydration by providing the machine with a drainage guide guiding water still rotating to the same direction as the dehydration tub from the dehydration tub to a drainage hole. SOLUTION: A drainage hole 10 is located just below the bottom of the dehydration tub 2 at a position near circumference. At a position of a water route for dehydrated water, a baffle is attached. Just above the baffle, a lid 13 is attached in a way to overshadow about half area of the drainage hole 10. Impact of dehydrated water to the baffle 12 as the result of rotating to the same direction as the dehydration tub causes splashing upward within the space of the lid 13 and guides smoothly to the drainage hole 10. The position of the lid 13 causes no disturbance of the water flow to the baffle 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure in an outer tub of a fully automatic washing machine.

[0002]

2. Description of the Related Art In a fully automatic washing machine, drainage is performed during dehydration and rinsing after a washing operation, and this drainage is performed from a drainage port of an outer tub located outside the dehydration tub. The drainage at the time of rinsing is performed in a state where the dehydration tank does not rotate, but the drainage at the time of dehydration is performed while the dehydration tank rotates.

[0003]

In the current fully automatic washing machines, there is a problem in that drainage after washing is not smoothly performed. This is because the drainage becomes a water flow that rotates together with the dehydration tank during dewatering, so that it does not reach the drainage port smoothly.

Then, in the dehydration after washing, the concentration of detergent contained in the washing water is high, and the washing water which is not smoothly drained by the movement of the dehydrating tank is agitated to generate a large amount of foam, which causes the dehydration tank and the outer tank to be separated. The space is filled with bubbles. Therefore, the bubbles act as a resistance and the dehydration tank does not rotate at a high speed, and the dehydration is not sufficiently performed.

In order to avoid the above problems, it is necessary to increase the gap between the dewatering tub and the outer tub or to perform intermittent dewatering for a long time. However, if the size of the washing machine body is increased or the operating time is extended, There is a problem.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a fully automatic washing machine having excellent drainage performance in which drainage is smoothly performed during dehydration.

[0007]

According to a first aspect of the present invention, in a fully automatic washing machine in which a dehydration tub is provided in an outer tub provided with a drainage port, the outer tub is dewatered. In the above, the drainage guide part for guiding the drainage rotating in the rotation direction of the dehydration tank to the drainage port is provided. .

In the invention according to claim 2, further, the drainage guide portion is provided with a water contact portion provided on the side of the drainage outlet opposite to the side where the rotating drainage water flows, and the drainage water is discharged from the upper portion of the water contact portion. It is configured to include a lid portion extending above the mouth.

According to the third aspect of the present invention, the lid part covers approximately half of the drainage port.

[0010]

1 is a sectional view of a fully automatic washing machine according to the present invention.

Reference numeral 1 denotes an exterior body, and inside the exterior body 1, an outer tub 2 and a dehydration tub 3 are provided. 5 is a motor,
The dehydration tank 3 and the rotary blades 7 provided on the bottom of the dehydration tank 3 are provided so as to rotate. A drain pipe 8 is connected to the drain port 10 of the outer tank 2.

FIG. 2 is a plan view of the outer tank 2, and FIG. 3 is a drainage port 10.
FIG. 4 is an enlarged plan view of the portion, and FIG. 4 is a sectional view of the drainage port 10 portion.

The drainage port 10 is provided at a position deviated to the side of the bottom of the outer tank 2. A pedestal 12 as a water contact portion is provided on one side in the circumferential direction of the drainage port 10, and the drainage port 10 is formed so as to extend above the drainage port 10 from the upper portion of the platform 12. A lid 13 covering the half is provided.

When dehydrating with the above-mentioned structure,
The drainage flow H in the same direction as the rotation direction of the dehydration tub 3 hits the rising surface 15 of the pedestal portion 12, and the drainage that hits the lid 1 upward
Since there is 3, it is guided smoothly to the lower drainage port 10 without escaping upward. Further, since the lid portion 13 is provided so as to cover approximately half of the drainage port 10, the amount of water hitting the rising surface 15 of the base portion 12 is not reduced by the presence of the lid portion 13.

FIG. 5 shows another embodiment. In this embodiment, a protruding portion 17 is formed so as to project inward from the base portion 12 and the tip thereof is curved toward the drain port 10. With the configuration in which the protrusion 17 is formed in this manner, more drainage is made to reach the drainage port 10 side during dehydration, so that drainage efficiency is further improved.

[0016]

According to the invention described in claim 1 of the present invention, the drainage guide portion is provided so that the drainage can be smoothly performed during the dehydration, whereby the operation time can be prolonged. Dehydration performance can be improved without

Further, by constructing the drainage guide portion as in the invention according to claims 2 and 3, drainage can be performed more smoothly.

[Brief description of drawings]

FIG. 1 is a sectional view of a fully automatic washing machine of the present invention.

FIG. 2 is a plan view of an outer tank used in the present invention.

FIG. 3 is an enlarged plan view of a portion A of FIG.

4 is a sectional view taken along line XX of FIG.

FIG. 5 is an enlarged plan view of a drainage port portion of an outer tub in another embodiment.

[Explanation of symbols]

 2 Outer tank 3 Dewatering tank 10 Drain port 12 Units (water contact part, drainage guide part) 13 Lid part (drainage guide part)

Claims (3)

[Claims] 1. A fully automatic washing machine in which a dehydration tub is provided in an outer tub provided with a drainage port, and drainage that rotates in the rotation direction of the dehydration tub in the outer tub is guided to the drainage port during dewatering. Fully automatic washing machine with drainage guide. 2. The drainage guide part comprises a water contact part provided on the side of the drainage port opposite to the side where the rotating drainage flows, and a lid part extending from the upper part of the water contact part onto the drainage port. The fully automatic washing machine according to claim 1. 3. The fully automatic washing machine according to claim 2, wherein the lid covers substantially half of the drainage port.