JPS59228892A - 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] [Technical Field of the Invention] The present invention consists of a peripheral wall of a washing tub consisting of a fixed peripheral wall part and a movable peripheral wall part, and the cleaning is performed mainly by g-rubbing contact between these two wall parts and the laundry. Concerning a washing machine that works.

[Technical background of the invention and its problems]

Among conventional washing machines, those with rotary blades that generate a water flow using rotary blades to obtain a cleaning effect require a large washing tank volume relative to the cloth Φ because the washing machine uses wood to flow the laundry with the water flow. , which means that there are fewer clothes that can be washed in − times. Furthermore, when the number of cloths is small, the water flow becomes extremely strong, resulting in excessive cleaning, while when the number of cloths ω increases, the speed of the water flow decreases, and the cleaning effect tends to decrease rapidly. Furthermore, the contact between the laundry and the rotating blades is accidental and causes only partial scouring, so it is impossible to expect a scrubbing effect over the entire laundry, which tends to cause so-called uneven washing and damage the laundry.

On the other hand, there is a new method that has recently removed the rotating blades, in which the entire washing tank is intermittently rotated while containing water and laundry, and the cleaning effect is obtained by the speed difference between the water and the laundry. Although this method has the advantage of not damaging the laundry items, the speed difference between the laundry items and the water is small and the movement is simple, resulting in a low cleaning effect. There is a drawback.

[Purpose of the invention]

The present invention was made in view of the above-mentioned circumstances, and therefore, its purpose is to provide a stronger and more even cleaning effect and to prevent fabric damage than ever before without using the conventional rotary blades or the rotation of the entire washing tank. To provide an iT washing machine that is reliable, can wash a lot of clothes in one go, maintains an appropriate washing effect, and has a wide service area.

[Summary of the invention]

The present invention has the peripheral wall of the washing tub formed by a fixed surrounding wall located above and a movable surrounding wall located below, and the laundry is accommodated together with water in such a washing tub so that it can be used when the amount of laundry is small. In this case, the laundry is mainly flowed by the water flow generated by the movable peripheral wall, and as the number of cloth legs increases, the laundry is caused to flow by contact friction horns with the movable peripheral wall, and from the fixed peripheral wall in the upper part. The laundry is washed by a synergistic action with a friction saw, and the movable peripheral wall is formed so that at least its inner surface gradually increases in diameter from the bottom to the top, thereby A scrubbing effect due to friction between the fixed peripheral wall and the movable peripheral wall and friction between the laundry, and a so-called massaging effect due to the fact that the laundry is rolled when subjected to forces in different directions from the fixed and movable peripheral walls. The effect is so that it can be expected evenly across all products.

(Embodiment of the Invention) An embodiment in which the present invention is applied to a dehydrating and washing machine will be described below with reference to the drawings.

Reference numeral 1 designates an outer box, inside which a water receiving tank 2 is disposed, which is elastically supported via a hanging rod mechanism 3 so as to be swingable. Reference numeral 4 denotes the back, which essentially consists of a fixed circumferential wall and a movable circumferential wall located below the fixed circumferential wall. This is achieved by a combination of a fixed 4M5 that rotates during dewatering operation and is stopped during washing, and an agitator 6 shaped like a shallow bottom container.

To explain this in detail below, the fixed tank 5 is placed inside the water receiving tank 2, its outer bottom and BII are connected to the hollow dehydrator @7, and the container-shaped stirring body 6 is placed inside the water receiving tank 2, and the inner circumferential wall of the fixed tank 5 is along the sea urchin, and its outer bottom is connected to the washing shaft 8. In particular, the container-shaped stirring body 6 has a circumferential wall height approximately half the height of the fixed tank 5, ljJ, and a depth, and both the inside and outside surfaces are formed into a tapered shape whose diameter gradually increases from the bottom to the top. Moreover, its inner surface is formed into an uneven shape with a large number of grooves 9 extending in the vertical direction. On the other hand, in this example, there are 4 washes! 4 serves as an IJ (J water tank), and for this purpose, a dehydration hole 1o is formed in the peripheral wall of the fixed tank 5. 11 is a power control mechanism (washing) ■ I-ta 12
The rotational force is transmitted to the washing shaft 8 at a reduced speed and alternately reversed to the washing u4, and during dewatering, it is transmitted to the dehydration shaft 7 and the washing shaft 8 to rotate the fixed tank 5 together with the container-shaped agitator 6. It has a built-in deceleration mechanism, crutch mechanism, brake mechanism, etc. Reference numeral 13 denotes a drain valve, which drains the water in the wash basin 4 from the bottom of the water tank 2 to the outside of the machine via a water hose 14.

15 is a timer, which automatically controls each process from washing to final dehydration.

In the above configuration, during the washing operation, the fixed tank 5 is restrained by the brake IN 4M so that it does not rotate, and the container-shaped agitation body 6 is rotated in forward and reverse directions. Wash the surrounding wall part in tank 4
The peripheral wall of the container-shaped stirring body 6 is made to function as a fixed peripheral wall part, and the peripheral wall of the container-shaped stirring body 6 is made to function as a movable peripheral wall part.

Next, the operation of the above configuration will be explained. For washing, water is supplied to the water receiving tank 2 and thus the fixed tank 5 in the washing 4H4 until the water is almost full, and the wash clothes are thrown in. And the washing operation is 1♂
J fixed 1! This is done by driving only the container-shaped agitation body 6 in forward and reverse rotations while restraining the y5 from rotating by a brake mechanism. In this embodiment, the rotation speed of the container-shaped stirring body 6 is within the range of 120 to 180 revolutions per minute, and the direction of rotation is reversed approximately every 2 to 3 revolutions.

Now, in such a washing operation, since the laundry comes into contact with the peripheral wall of the container-shaped agitator 6 and the peripheral wall of the fixed tank 5, in the lower part, the agitator 6 is damaged due to frictional contact therewith. A rotational force is applied as indicated by the arrow x in the figure, and the upper part receives a restraining horn due to frictional contact with the fixed tank 5 (),
By simultaneously receiving these frictional forces in different directions, the laundry is given a twisting or compressive effect, but this is caused by the container-like
This is repeated by reversing the rotational direction of the X stirring body 6, and the centrifugal force accompanying the rotation of the container-shaped stirring body 6 pushes the laundry toward the peripheral wall of the washing tub 4, and the reaction is transferred to the upper fixed tank 5.
arrow Y in the figure.
As shown in the direction, the action of reversing up and down is also produced, giving a complex movement. Particularly in the case of this embodiment, the container-shaped one-party stirring body 6
Since it is formed into a tapered shape that gradually increases in diameter from the bottom to the top, the laundry moves smoothly due to the centrifugal force, and the water also moves smoothly and rises. This facilitates the up-and-down reversal (swapping) of the laundry. Therefore, the laundry is subjected to a large amount of friction between the cloths due to the above-mentioned complicated movements, as well as a scrubbing action due to the large friction between the cloth 5 and the surrounding wall of the container-shaped agitator 6. The cleaning effect is shown in Figure 2 as an example of the results of a comparative experiment. That is, in FIG. 2, the curves are respectively curved by the present invention, B by the conventional rotary vane method, and C(
This figure shows the cleaning ratio characteristics when using the washing tank rotation system that was devised prior to this invention, and it can be seen that the cleaning effect of the present invention is high.

Furthermore, as mentioned above, the laundry is moved by frictional contact with the peripheral wall of the stationary tank 5 and the container-shaped (alternating body 6), so as the amount of cloth increases, the frictional force also increases, and the degree of movement of the laundry decreases as the amount of cloth increases. Therefore, the rate of decrease in the cleaning effect is small.Furthermore, when the amount of laundry is small, the frequency of contact with the peripheral wall of the container-shaped agitator 6 is low, and the contact friction horn is extremely small, which is mainly caused by the rotation of the agitator 6. However, in this case, the water flow is not extremely strong as in the case of conventional rotating impellers, so there is no excessive washing, and regardless of the amount of cloth, an appropriate degree of washing can be achieved. This means that the range of the amount of cloth that can maintain an adequate cleaning effect is wider than in the case of the prior art described above (see FIG. 2).

In particular, in this embodiment, since the inner surface of the container-shaped agitator 6 is formed into an uneven shape, firstly, the laundry can be hung in the circumferential direction better, and a strong massaging action can be obtained. At the same time, the scrubbing action can be strengthened, and on the other hand, the laundry can be easily removed from the upper part, and there are four parts in history (tM 9).
(washing) The water becomes a channel that is not blocked by the laundry and flows by centrifugal force, giving the force to push up the laundry, making it easier for the laundry to move upwards, and making it easier to move the laundry upwards and downwards. By increasing the frequency of replacement, a cleaning effect that is more powerful and more even each month can be obtained.

In the m2 water operation of this embodiment, after draining water by opening the drain valve 13, a clutch mechanism (not shown) is activated to drain the fixed tank 5 at L.
This is carried out by integrally rotating the container-shaped stirring body 6 in one direction.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but may be applied to a washing tank that does not have a dehydrating function. Therefore, the peripheral wall of the fixed tank may be made non-porous to store water within itself. It is also possible to have a configuration in which the nashimizu-kyo is removed. In addition, the movable tank, that is, the movable peripheral wall part is not limited to the tapered shape as described above, but may have a bowl shape, for example, as long as the diameter gradually increases from the bottom to the top. The surface to become is the inner surface of the above-mentioned inner and outer surfaces (it may also be pu).

〔Effect of the invention〕

As is clear from the above, in the washing machine of the present invention, the peripheral wall of the washing tub is composed of a fixed peripheral wall located above and a movable peripheral wall located below and driven to rotate in forward and reverse directions, and When the amount of laundry is stored together with water, the laundry is made to flow mainly by the water flow generated by the movable peripheral wall when the amount of laundry is small, and as the amount of laundry increases, the flow is caused by the frictional force of contact with the movable peripheral wall. The synergistic effect of the frictional force received from the fixed peripheral wall in the upper part makes washing easier.
J: This is characterized in that the movable peripheral wall portion is formed such that at least the inner surface thereof becomes larger in diameter as it goes from the lower part to the upper part. Even without the rotation of the blades or the entire tank, you can expect a stronger and more even cleaning effect than ever before, and you can wash a lot of water in one go, and the amount of cloth can be within a range that can maintain an appropriate cleaning effect. It has various excellent effects such as widening the area.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of an embodiment of the present invention, and FIG. 2 is a cleaning ratio characteristic diagram. In the figure, 2 is a water receiving tank, 4 is a washing tank, 5 is a fixed tank (fixed peripheral wall part), 6 is a container-shaped 1 food stirring body (movable peripheral wall part), 9 is a groove, 1
2 is washing i? The machine motor 11 is a power control mechanism. Applicant Tokyo Shibaura Electric Co., Ltd. Figure 1 Figure 1 and Figure 2 Laundry amount □

Claims (1)

[Claims] 1. The peripheral wall of the washing tub is composed of a fixed surrounding wall located above and a movable surrounding wall located below and driven to rotate in forward and reverse directions, and the laundry is placed in the washing tub together with water. When the amount of cloth m is small, the laundry is made to flow mainly by the water flow generated by the movable peripheral wall, and as the amount of cloth m increases, the laundry is prevented from flowing by the frictional force of contact with the movable peripheral wall. Washing is performed by a synergistic effect with the frictional force received from the fixed peripheral wall part in the upper part, and the movable peripheral wall part is formed so that at least the inner surface thereof gradually increases in diameter from the lower part to the upper part. 2 machines. 2. The washing machine according to claim 1, wherein the movable peripheral wall has an uneven inner surface.