JPH11169579A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To forcibly agitate the subject of washing in a drum. SOLUTION: In this washing machine, when a drum 21 is spun, a weight 24 placed within a cylindrical part 23 is moved by its own weight each time the drum 21 is inverted, and a detergent solution in the cylindrical part is forced out into a washing drum 22. Thereby the flow of the detergent solution is quickened to make it possible to enhance the effect of washing the subject of washing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a washing machine. For details, when the weight arranged in the drum is moved by its own weight, the detergent solution is forcibly pushed out, and the detergent solution is forcibly circulated, so that the rotation of the washing tub is slow or the amount of laundry is small. Even in this case, the washing effect of the laundry is improved.

[0002]

2. Description of the Related Art Laundry, detergent and hot water (30 ° C. to 50 ° C.)
And put it in the drum, seal it, and increase the air pressure in the drum by the foaming action of the detergent and the expansion of air by hot water. 2. Description of the Related Art A manual washing machine is conventionally known.

FIGS. 4A and 4B show a configuration of such a conventional washing machine 1. As shown in FIG. 1, the washing machine 1 includes a barrel-shaped drum (washing tub) 2, a support base 3 that rotatably supports the drum, and a rotating handle 4 for rotating the drum 2.
It is composed of

[0004] A circular opening 5 is formed in the upper part of the drum 2, and a pressure lid 6 is arranged in the upper part of the drum 2 so as to be freely opened and closed. In order to completely seal the drum 2, a ring-shaped sealing member 7 is attached above the opening 5 and between the opening 5 and the pressure lid 6. A valve 8 is provided at the lower part of the drum 2.
Is provided so that water (detergent solution) in the drum 2 can be discharged to the outside.

When washing clothes, for example, with the washing machine 1 constructed as described above, as described above, laundry, detergent and hot water are put into the drum 2, the pressure lid 6 is closed, and the drum 4 is rotated by the rotating handle 4. Rotate 2. As a result, the hot water is stirred and the detergent foams, the air pressure in the drum 2 increases, and the detergent solution vigorously passes through the fibers of the laundry (clothes) many times, and the dirt stuck to the fibers is washed out. It is.

In this conventional example, the amount that can be washed at one time is about 2.5 kg, and the washing time is about 2 minutes. Therefore, it is convenient for a small amount of washing, the amount of detergent and water consumption can be greatly reduced, and since washing is performed under high pressure, dirt that is difficult to remove with an electric washing machine can be easily removed.

[0007]

By the way, in the washing machine 1 shown in FIG.
Even when was rotated, the weight of the laundry was light, so that the laundry just flowed through the detergent solution and the flow of the detergent solution to the laundry was slow. Therefore, a sufficient cleaning effect was not obtained, and there were cases where dirt was not completely removed.

Accordingly, the present invention has been made to solve the above-mentioned problem, and provides a washing machine in which the washing effect is enhanced by speeding up the flow of the detergent solution and increasing the stirring efficiency during washing. .

[0009]

In order to solve the above-mentioned problems, in a washing machine according to the present invention, a sealable barrel-shaped drum having a washing tub therein and a rotary handle for rotating the drum are provided. In the washing machine having the inside, a cylindrical portion having both ends opened so as to allow water in the drum to pass freely inside the drum and outside the washing tub is provided, and the cylindrical portion moves inside the drum. When the weight is placed freely and the cylindrical part is turned upside down with the rotation of the drum, the weight moves in the cylindrical part by its own weight, and the liquid such as the detergent solution in the cylindrical part is removed. The cylindrical portion is extruded from upper and lower end surfaces.

In the present invention, when the drum is rotated, when the drum is turned upside down, the weight disposed in the cylindrical portion moves by its own weight, whereby the detergent solution in the cylindrical portion is forcibly removed from the washing tub. Extruded into. Thereby, the flow of the detergent solution is increased, and the washing effect of the laundry can be improved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a washing machine according to the present invention will be described in detail with reference to the drawings. The same reference numerals are given to the same parts as those in the related art, and the detailed description is omitted.

FIG. 1 shows the configuration of a washing machine 20 according to the present invention. The washing machine 20 performs washing by agitating the laundry and the detergent solution within a high pressure created by the foaming action of the detergent and the expansion of air by hot water. In the present invention, the weight disposed in the drum 21 is used. The agitation in the drum 21 can be efficiently performed by utilizing the movement of the drum 21 by its own weight.

As shown in FIG. 1, a washing tub 22 for storing laundry is formed on the upper side inside a barrel-shaped drum 21 made of plastic resin. At the time of washing, in order to promote the flow rate of the detergent solution in the washing tub 22 and the agitation of the laundry, a cylindrical portion 23 is provided on the outside of the bottom of the washing tub 22 at five places in this example (see FIG. 2). A spherical weight 24 slightly smaller than the inner diameter of the cylindrical portion 23 is movably disposed inside the cylindrical portion. The reason why the plurality of tubular portions 23 are provided is to make the circulation of the detergent solution smoother.

The cylindrical portion 23 communicates with the inside of the washing tub 22 through a communication port 25 having such a size that the weight 24 cannot pass through. The drum 21 rotates and the cylindrical portion 23 is turned upside down. When the weight 24 moves within the cylindrical portion 23 by its own weight, the detergent solution in the cylindrical portion 23 is pushed out by the weight 24. As a result, the detergent solution is vigorously discharged from one end side (the communication port 25 side) of the cylindrical portion 23 to the washing tub 22 side.

In order for the detergent solution to be smoothly discharged from one end (or the other end) of the cylindrical portion 23 into the washing tub 22,
The other end side of the cylindrical portion 23 (the bottom side of the washing tub 22) is also the washing tub 2
2, the detergent solution needs to be circulated through the washing tub 22 and the tubular portion 23.

For this reason, as shown in FIG. 1, a space 26 for flowing water is formed around the cylindrical portion 23 located on the outermost peripheral side, and the drum 21 is connected so that the space 26 and the washing tub 22 communicate with each other. In this example, water outlets 27 are drilled at eight locations (see FIG. 2) on the side wall side.

As described above, in FIG. 2, the plurality of communication ports 25 are arranged near the center of the drum 21, and the water port 2 is provided on the side wall side.
By disposing 7, a flow from the center of washing tub 22 toward the outside (side wall side) or a flow from the outside of washing tub 22 (side wall side) toward the center is formed in washing tub 22 during stirring. As a result, the laundry in the washing tub 22 is efficiently stirred.

The weight 24 is formed by covering a stainless steel ball having a predetermined weight with a rubber coating. In this example, an antibacterial agent is contained in the rubber coating to prevent the surface from being wet. It is kneaded. A rubber ring 28 for soundproofing the weight 24 is fitted to one end and the other end of the cylindrical portion 23.

Subsequently, the washing machine 20 constructed as described above is used.
A description will be given of the operation in the case of washing using the.

First, as shown in FIG. 1, laundry, detergent and hot water are put in the drum 21, and the pressure lid 6 is closed to seal the drum. In this case, the temperature of the hot water is suitably, for example, about 30 ° C. to 50 ° C. so that the air in the drum 21 thermally expands and the pressure increases. In this example, the laundry that can be washed at one time is 2.
It is about 5 kg.

Then, the rotary handle 4 is rotated for about 2 minutes to rotate the drum 21. At this time, the detergent is dissolved in the hot water to form a detergent solution, and foams due to the rotation of the drum 21, and the pressure in the drum 21 is further increased. The effect obtained by washing under increased pressure is the same as before.

FIGS. 3A to 3E show the flow of the detergent solution when the drum 21 rotates. The weight 24 moves in the cylindrical portion 23 by its own weight until the drum 21 changes from the state of FIG. 3A to the state of FIG. come.

As a result, the detergent solution in the tubular body 23 is discharged into the washing tub 22 so as to be pushed out by the weight 24. At the same time, the detergent solution is drawn into the cylindrical portion 23 from the opposite direction, and the detergent solution whose flow rate has been increased is shown in FIG.
Circulating as indicated by the arrow C, the stirring effect in the washing tub 22 is enhanced.

Further, by rotating the drum 21 further, FIG.
The weight 24 moves in the tubular portion 23 by its own weight from the state of C to the state of being turned upside down as shown in FIG. 3E through the state of FIG. 3D, and this time the opposite side of the washing tub 22 side. Go to

As a result, the detergent solution in the cylindrical body 23 is discharged into the space 26 while being pushed out by the weight 24. In this case, the detergent solution circulates as shown by the arrow in FIG. 3E, and the stirring effect in the washing tub 22 is enhanced.

Therefore, even when the laundry in the drum 21 is difficult to be agitated when the amount of laundry put in the drum 21 is small or when the drum 21 is slowly rotated, the inside of the cylindrical portion 23 is not affected. Detergent solution is forced to wash tub 2
As it flows into or out of 2 and is applied to the laundry,
The cleaning effect is improved. Further, since the circulation direction of the detergent solution in the drum 21 changes during one rotation of the drum 21,
The stirring operation is enhanced, and the cleaning effect is further increased. Further, by providing a plurality of tubular portions 23, circulation of the detergent solution can be made smooth.

In this example, a case has been described in which five cylindrical portions 23 on which weights 24 are arranged are provided, but the number of cylindrical portions 23 is not limited to this.

[0028]

As described above, in the washing machine according to the present invention, even if the rotation of the drum on which the washing tub is formed is slow or the amount of laundry is small, the weight disposed in the drum is reduced. The detergent solution is forcibly pushed out by being moved by its own weight, and flows into or out of the washing tub.

Therefore, even when the laundry in the drum is difficult to stir when the laundry in the drum is small or when the drum is slowly rotated, the detergent solution in the cylindrical portion is forcibly removed. Since the water is discharged into the washing tub and is forcibly applied to the laundry, the cleaning effect is improved. In addition, since the circulation direction of the detergent solution in the drum changes during one rotation of the drum, the stirring operation is enhanced and the cleaning effect is further enhanced.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a washing machine 20 according to the present invention.

FIG. 2 is a diagram showing a cross section taken along line AA of FIG. 1;

FIG. 3 is a diagram illustrating a stirring operation in a drum 21.

FIG. 4 is a diagram showing a configuration of a conventional example.

DESCRIPTION OF SYMBOLS 1,20 Washing machine 2,21 Drum 3 Support 4 Rotating handle 5 Opening 6 Pressure lid 7 Sealing material 8 Valve 9 Water distribution pipe 22 Washing tub 23 Cylindrical part 24 Weight 25 Communication port 26 Space 27 Outlet 28 Rubber ring

Claims (3)

[Claims] 1. A washing machine having a sealable barrel-shaped drum having a washing tub therein, and a rotating handle for rotating the drum, wherein the inside of the drum and the outside of the washing tub are provided. A cylindrical portion having both ends opened so that water in the drum can freely pass therethrough is provided, and a weight is placed in the cylindrical portion so as to be movable inside the cylindrical portion. When the cylindrical part is turned upside down, the weight moves within the cylindrical part by its own weight, so that a liquid such as a detergent solution in the cylindrical part is pushed out from the upper and lower end surfaces of the cylindrical part. A washing machine characterized by being made to be able to. 2. The side wall of the bottom of the washing tub such that one end of the cylindrical portion in the axial direction is directed to the washing tub, and the other end of the cylindrical portion in the axial direction communicates with the washing tub. 2. A water outlet is provided on the side, and a liquid such as a detergent solution flowing into or out of the washing tub is circulated through the cylindrical body and the water outlet. Washing machine. 3. The washing machine according to claim 1, wherein a plurality of the cylindrical portions provided with the weights are provided in the drum.