JPS6335276B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehydrating washing machine, which rotates a pulsator during washing and rotates a tank during dehydration, in which the shape of the tank is improved.
The purpose is to improve washing performance.

In general, the cleaning performance of a washing machine is high,
It is known that the smaller the washing spots, the better. In order to improve washing spots, when the laundry is rotated by the pulsator, it is necessary to also flip it in the vertical direction. For this purpose, various ideas have been made, for example, as shown in Figs. 1 and 2, there is one in which a water flow control plate 2 or a jam plate 3 for changing the movement of the cloth is provided inside the tank 1. .

That is, in FIGS. 1A and 1B, a bar plate 3 is attached to the inner peripheral side wall of the tank 1, and a water flow control plate 2 is provided near the bottom of the tank 1, but this bar plate 3 is separate. Since it is a component, it has the disadvantage of being expensive, and the water flow control plate 2 does not have the effect of turning the laundry upside down to reduce washing spots.

Figure 2 A and B show a flat part 4 on the inner peripheral side wall of the tank 1.
This increases the number of times the laundry is turned upside down, but it also greatly reduces the number of times the laundry is rotated, causing the laundry to stop at an unbalanced position and reducing the random performance of the laundry. This will result in

In view of these conventional problems, the present invention is designed to minimize the decrease in the number of cloth rotations and increase the number of times the cloth is turned upside down, thereby improving the washing efficiency and the washing performance such as washing spots. It is something.

Hereinafter, the present invention will be described with reference to the illustrated embodiment. In FIG. 3, 5 is the main body of the washing machine, and 6 is an outer tank for receiving washing water, which is fixed to the main body 5 of the washing machine.
A tank 7 is provided inside the outer tank 6, and a pulsator 9 is provided in a pulsator storage recess 8 formed in the inner bottom of the tank 7, and a large number of small holes 10 are provided in the side wall. Reference numeral 11 denotes a mounting flange fixed to the lower end of the pulsator storage recess 8 of the tank 7 with screws, etc., and is rotatably supported via a hollow outer shaft 12. During dewatering, the rotation of the outer shaft 12 rotates the tank 7. let 13 is pulsator 9 when washing
The inner shaft rotates, and is fitted into the outer shaft 12 so as to be relatively rotatable. Reference numeral 14 denotes a balancer case, which is fixed to the upper opening edge of the tank 7 with tapping screws 15. 16 is a washing/dehydration switching mechanism section, 17
is a motor, which transmits power to the washing/dehydrating switching mechanism section 16 via a belt 18. 19 is the drainage hose,
This is for discharging water to the outside via a drainage pot 20.

As schematically shown in FIGS. 4A and 4B, the tank 7 has a flat part 21 formed on a part of its inner circumferential side wall, and a slope part 22 is partially provided in the inner bottom part in the circumferential direction. ing. The slope portion 22 is the tank 7
1/2~
It is formed with a slope of about 1/1.

In the above configuration, when the pulsator 9 is rotated during washing, the laundry is rotated along with the water flow generated thereby. At this time, the slope portion 22 functions to lift the laundry upward, but the slope portion 22 alone hardly reduces the number of times the laundry is washed. Further, the flat portion 21 reduces the number of turns of the cloth, but also functions as a strainer plate for creating a tight grip for reversing the cloth lifted by the slope portion 22.

FIG. 5 is a graph of cleaning efficiency and washing spots when the slope of the slope portion 22 is varied while the plane portion 21 is kept constant. The solid line in this graph indicates the cleaning rate;
The dashed line indicates uneven washing. When the gradient of the slope portion 22 is set to about 1/2 to 1/1, uneven washing becomes less and the washing rate is 50% or more.
The cleaning performance is sufficient. Therefore, slope part 2
If the slope of step 2 is set to 1/2 to 1/1, an overall excellent cleaning effect can be obtained.

As described above, the present invention includes forming a slope part partially in the circumferential direction on the inner bottom surface of the tank to ensure that the cloth can be turned upside down, and also making the inner surface shape with a flat part and a slope part. This minimizes the decrease in the number of cloth rotations and increases the number of times the cloth is turned upside down, resulting in excellent washing efficiency and washing spots. In addition, if the tank shape of the present invention is molded with resin, the flat part and the sloped part can be integrally molded, so it is rational that there is no need to attach a separate interference plate.

[Brief explanation of the drawing]

Figures 1A and B and Figures 2A and B are schematic diagrams of a tank showing a conventional example, Figure 3 is an overall configuration diagram showing an embodiment of the present invention, and Figure 4A is a schematic plan view of the same tank. , FIG. 4B is a schematic sectional view of the tank, and FIG. 5 is a graph showing the effects of the present invention. 7 is a tank, 8 is a pulsator storage recess, 9 is a pulsator, 21 is a plane part, and 22 is a slope part.

Claims (1)

[Claims] 1 In a dehydrating washing machine that rotates a pulsator during washing and rotates a tank during dehydration, a pulsator is provided with a flat part on a part of the inner circumferential side wall of the tank, and the pulsator is formed in the inner bottom of the tank to accommodate the pulsator. A dehydrating washing machine characterized in that a sloped portion having a slope that intersects with the flat portion from the vicinity of the storage recess is partially provided in the circumferential direction.