JPH05253392A - Cleaning device for washing machine - Google Patents

Abstract

PURPOSE:To easily remove stain adhering to a washing tub by providing a supply pipe of a cleaning liquid on the inner surface of the washing tub and forming many spraying holes for spraying the cleaning liquid on the wall surface of the washing tub. CONSTITUTION:A cleaning device is installed in a full automatic washing machine having an outer washing tub 2 provided in a box-shaped washing tub main body 1 and an inner washing tub 3 with the upper face opened disposed in the outer washing tub 2. A supply pipe 8 for a cleaning water is disposed on the outer peripheral edge of the outer washing tub 2 so as to surround an opening part thereof. The supply pipe 8 is connected to a water feed port provided at the corner part of the washing machine main body 1 and a hose directly connected to the faucet of a water pipe is removably connected to this water feed port. On the outer peripheral surfaces on both sides of the bottom of this supply pipe 8, jetting ports 9a, 9b for jetting the cleaning water to both the inner wall surfaces of the inner and outer washing tubs 2 and 3 are provided. The cleaning water is jetted from these jetting ports 9a, 9b, so that the stain adhering to the respective inner wall surfaces of the inner and outer washing tubs 2, 3 are removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for cleaning dirt adhering to a washing tub of a washing machine.

[0002]

2. Description of the Related Art Conventionally, the deterioration of the natural environment due to pollution of rivers and lakes has become a social problem. One of the causes of pollution is sewage from households. Detergent is a pollution source.

Further, since the synthetic detergent kills microorganisms in the water, it deteriorates the ability of the method for microbial purification in domestic septic tanks and sewage treatment plants in cities, and also causes the self-cleaning action of rivers and the like to be lost.

Under these circumstances, it is demanded to prevent the pollution of rivers by reducing the use of synthetic detergents in each home and using so-called powder soap other than synthetic detergents instead.

On the other hand, an electric washing machine is usually used for washing at home. In a general electric washing machine, water or hot water is put in a washing tub, a predetermined amount of detergent is put therein, mixed, laundry is put in this, and a pulsator is used to generate a spiral water flow for washing. Is to do.

[0006]

However, in recent years, in particular,
The widespread use of fully automatic washing machines has created problems, especially when using powdered soap. That is, when washing is performed using powdered soap in a washing machine of this type, adhesion of laundry residue, soap residue, mold, etc. is observed between the outer washing tub of the washing machine and the inner washing machine. This naturally becomes remarkable as the number of uses increases. When the amount of these deposits increases, odors and soap scum with black mold may flow back into the washing tub during washing and rinsing, and these may adhere to the laundry. This phenomenon occurs even when a synthetic detergent is used, but it is particularly remarkable in the case of powder soap.

[0007] Since such dirt accumulates on a hard-to-reach part in the washing machine that cannot be easily seen, there is no means for effectively cleaning and removing it, and it becomes difficult for the dirt to be removed with the passage of time.

However, the structure of the conventional fully automatic washing machine has a structure in which the space between the inner washing tub and the outer washing tub is covered with its upper surface, so that the inside of the space cannot be seen from the outside. ing. Therefore, it is difficult to clean the dirt attached and accumulated on this portion.

Even if the circumstances are a little different, the above phenomenon is not the same as in the fully automatic type, but is the same in a normal two-tub type washing machine including a washing tub and a dehydrating basket. That is, since the stains adhere to the outer walls of the washing tub and the dehydration basket, especially when powder soap is used, it is necessary to frequently wash the adhered soap residue, which is troublesome.

Therefore, in order to spread the use of soap powder in order to prevent pollution of rivers and the like due to drainage, it is an important issue to solve the above-mentioned problems in the washing machine.

On the other hand, in order to remove dirt from the washing tub as described above, a chlorine-based bleaching detergent or the like has hitherto been used. However, chlorine gas is generated during use of the detergent, so that it is easy to handle. Care must be taken, and mixing with the wastewater will significantly impair the water quality.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a washing machine washing machine for easily removing dirt adhering to the washing tub of the washing machine.

[0013]

In order to achieve the above-mentioned object, the present invention provides a washing liquid supply pipe on the inner surface of a washing tub, and the supply pipe is provided along the inner wall surface with the inner wall surface. In addition, an injection port for injecting the cleaning liquid is provided.

This is a double-tub washing machine in which an independently rotating inner washing tub is installed inside the outer washing tub,
In the space between the outer washing tub and the inner washing tub, the washing machine main body is pivotally supported, and is rotatable by contacting the outer surface of the inner washing tub. A brush is planted around the rotating shaft. It is possible to provide a stain removing tool as described above.

The rotating shaft may be a hollow tube, and a plurality of holes communicating with the hollow portion may be provided side by side on the outer circumference thereof to supply the cleaning liquid to the hollow portion. further,
In a double tub washing machine in which an independently rotating inner washing tub is installed inside the outer washing tub, a cleaning liquid is supplied to the inside in a space between the outer washing tub and the inner washing tub,
It is also possible to arrange a cleaning pipe provided with an injection port for injecting the cleaning liquid toward the outer surface of the inner washing tub.

Further, the above devices are appropriately combined and mounted on a washing machine. That is, in addition to those in which a plurality of injection ports for injecting the cleaning liquid are arranged in parallel on the inner wall surface, in the space between the outer washing tub and the inner washing tub, the outer surface of the inner washing tub is pivotally supported by the washing machine body. A dirt removing tool formed by brushing may be provided around the rotation shaft of the brush.

It is also possible to additionally arrange a cleaning pipe which is supplied with the cleaning liquid therein and is provided with an injection port for injecting the cleaning liquid toward the outer surface of the inner washing tub.

[0018]

The present invention has the above-described structure, and the cleaning liquid such as water is sprayed from the supply pipe toward the inner wall surface of the washing tub during or after the washing by the washing machine. Then, the sprayed cleaning liquid flows in the direction of the bottom surface, and soap scum and other dirt adhering to the inner wall surface are flushed together with the washing tub cleaning liquid, and are mixed in the drainage for treatment.

After the washing is completed or during the washing, the inner washing tub is rotated, and the dirt remover installed in the space between the outer washing tub and the inner washing tub is rotated in the opposite direction to the inner washing tub. Then, the brush of the stain remover comes into contact with the outer peripheral surface of the inner washing tub to remove the attached stain. In this case, the rotating shaft is a hollow tube, and a plurality of holes communicating with the hollow portion are provided side by side on the outer periphery of the hollow tube.If the cleaning liquid is supplied to the hollow portion, the cleaning liquid is sprayed to the surroundings along with the brushing. The effect is demonstrated.

In the case where the cleaning pipe for injecting the cleaning liquid toward the outer surface of the inner washing tub is provided in the space between the outer washing tub and the inner washing tub, the outer surface of the inner washing tub is
A washing liquid is sprayed at the time of washing or after the washing is finished to remove dirt such as soap residue attached to the side surface of the washing tub.

If any one of these washing devices is installed in a washing machine, the washing effect is exhibited, but if these washing devices are used in combination, the washing action will be more excellent. Especially, the dirt attached to the washing tub by these,
If the cleaning is performed before the time elapses, the dirt can be easily removed with only hot water or water without using a chlorine-based cleaning agent or the like.

[0022]

Embodiment 1 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial sectional view showing a main part of a washing machine equipped with the device of the present invention, and FIG. 2 is a perspective view thereof. This washing machine is a fully automatic washing machine, and an outer washing tub 2 is provided in a box-shaped washing machine body 1. As shown in FIG. 2, the outer washing tub 2 has a rectangular parallelepiped shape in which each corner 6 has a substantially square shape with a rounded shape and an upper surface thereof is open.
Inside the outer washing tub 2, an inner washing tub 3 formed in a cylindrical shape and having an open upper surface is installed. The inner washing tub 3 is rotatable independently of the outer washing tub 2 by a motor (not shown). The inner washing tub 3 also serves as a dehydration basket, and at the time of dehydration, it rotates at a high speed with the laundry stored therein.

At the bottom of the inner washing tub 3, there is provided a pulsator 7 which is disk-shaped and has convex portions radially formed on its surface. The pulsator 7 is rotated by driving a motor (not shown).
By the rotation of the pulsator 7, the washing water in the inner washing tub 3 becomes a spiral water flow, and the laundry is rotated and stirred together with water, detergent and the like.

On the top surface of the washing machine 1,
An outer lid 9 whose one side is rotatably supported by the edge portion on the main body side.
Is provided. An inner lid 10 that rotates in the same direction as the outer lid 9 around the inner side of the one side is provided in the vicinity of the outer lid 9, and the inner lid 10 overlaps with the lower side of the outer lid 9. , Washing machine body 1, outer washing tub 2, and inner washing tub 3
Cover the upper opening surface of the.

In this washing machine, as shown in FIG. 5, a washing water supply pipe 8 is arranged on the outer peripheral edge of the outer washing tub 2 so as to surround the opening of the outer washing tub 2. There is. The supply pipe 8 is connected to a water supply port 11 provided at a corner of the washing machine main body 1, and a hose directly connected to a water tap is detachably connected to the water supply port 11.

As shown in FIG. 3, the supply pipe 8 has a circular transverse cross section, and the left and right outer peripheral surfaces on the bottom side thereof are provided with cleaning water on the inner wall surfaces of both the outer washing tub 2 and the inner washing tub 3. Jet ports 9a and 9b for jetting are provided respectively. Washing water flows out from both ends of one side of the supply pipe 8 as shown by arrows in FIGS. 3 and 4, and the washing water flows down along the inner wall surface 19 of the outer washing tub 2. Supply pipe 8
On the outside thereof, a plurality of first jet outlets 9a directed toward the inner wall surface of the outer washing tub 2 are arranged in a straight line,
Similarly, a second ejection port 9b for ejecting washing water toward the outer surface of the internal washing tub is provided inside.

The second jet outlet 9b is formed to be inclined by 45 degrees in the rotation direction (arrow a direction) so that water can be jetted along the rotation direction of the inner washing tub 3. On the other hand, in the washing machine of this embodiment, the stain removing tool 15 is provided in the space 12 at the corner between the outer washing tub 2 and the inner washing tub 3.
Is installed. As shown in FIG. 7, the stain remover 15 is provided with a rod-shaped rotary shaft 13 having a length from the top to the bottom of the washing tub, and a brush 14 is planted around the shaft.

The upper end of the rotary shaft 13 is pivotally supported by a triangular support plate 20 projecting from the corner of the washing machine body 1. The support plate 20 is provided with a long hole 21, and the rotary shaft 1
3 penetrates the long hole 21 and can reciprocate in the long hole 21 in a direction orthogonal to the axial direction.

The lower portion of the rotary shaft 13 is bent in an L shape, and the lower end 24 thereof is in a T shape and is rotatably supported by a bearing 16. A motor 25 is connected to one end of the rotary shaft 13 so that the brush 14 comes into contact with the outer surface of the inner washing tub 3 to rotate.

Further, a washing pipe 30 is installed from the top to the bottom of the washing tub so as to be polymerized on the outside of the stain remover 15. As shown in FIG. 6, the cleaning pipe 30 is provided along the wall surface of the outer washing tub 2 and has a circular cross section in this embodiment. However, the cross-sectional shape is not limited to this.

A plurality of jet ports 18 for jetting wash water toward the outer surface of the inner washing tub 3 are arranged in parallel in the washing pipe 30 in the longitudinal direction. The upper end of the cleaning pipe 30 is connected to the water supply port 11, and the cleaning water is supplied inside.

Next, the operation of the cleaning apparatus of this embodiment will be described. First, at the time of rinsing or after washing is completed, tap water is continuously supplied from a hose connected to the water supply port 11. Then, the washing water is jetted from the jet ports 9a and 9b of the supply pipe 8, and the washing water is poured on the inner side surface of the outer washing tub 2 and the outer side surface of the inner washing tub 2 so as to cover all of these surfaces. Run down. Therefore, the dirt adhering to these surfaces is washed away.

When the motor 26 is rotated and the inner washing tub 3 is slowly rotated, the brush 14 comes into contact with the outer side surface of the inner washing tub 3 to rotate and brushes the entire outer side surface. Are sufficiently removed.
It goes without saying that this is more effective than simply washing off.

In the dirt remover 15, since the rotary shaft 13 reciprocates within the range of the slot 21 around the bearing 16 at the lower end (arrow b), the brush 14 is the outer periphery of the inner washing tub 3 when not in use. Retreat to a position where it does not touch the surface.

Further, at the same time, the washing water is poured from the jet port 18 of the washing pipe 30 to the outer surface of the inner washing tub 3, and the dirt is washed away and removed. The cleaning water vigorously ejects from the small ejection port 18 due to the water pressure, but the ejection pressure becomes higher and stronger toward the bottom surface side. This is convenient because the bottom side of the inner washing tub 3 is more easily soiled than the top side.

The washing by the above-mentioned three kinds of washing mechanism may be carried out simultaneously with all of them mounted, but one or more washing mechanisms are appropriately selected and operated depending on the condition of dirt. Can be installed or installed.

[0037]

Second Embodiment FIG. 9 is a perspective view showing another embodiment of the present invention. In this embodiment, the same parts as those in the above embodiment are designated by the same reference numerals and the description thereof will be omitted.

The washing machine 30 is of a two-tub type having a washing tub 31 and a dehydrating tub 33 accommodating a dehydrating basket 32 adjacent to the washing tub 31. This washing tub 31 is not a double tub,
The dehydration tank 33 has a double structure in which a cylindrical dehydration basket 32 is housed.

A water supply pipe 8 is installed on the upper peripheral edge of the washing tub 31 so as to surround the washing tub 31. On the other hand, the water supply pipe 8 is similarly installed on the upper peripheral edge of the dehydration tank 33 so that the inner peripheral surface of the dehydration tank 33 and the outer peripheral surface of the dehydration basket 32 can be cleaned.

[0040]

As described above, according to the present invention, soap residue and the like adhering to a washing tub or a dehydrating basket can be easily removed without using a detergent or the like. Therefore, the washing tub can be kept clean.

In particular, even if powdered soap is used, dirt does not remain in the washing tub or the like. Therefore, the use of synthetic detergent can be reduced, and the pollution of rivers and the like due to the drainage from the washing machine can be removed.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a main part of a washing machine equipped with a cleaning device of the present invention.

FIG. 2 is a perspective view of a washing machine equipped with the cleaning device of the present invention.

FIG. 3 is a sectional view of the supply pipe.

FIG. 4 is an enlarged view of the mounting portion of the supply pipe.

FIG. 5 is a plan view of a washing machine equipped with the cleaning device of the present invention.

FIG. 6 is a diagram showing a cleaning device using a cleaning pipe.

FIG. 7 is a perspective view showing how the dirt remover is attached.

FIG. 8 is a partial sectional view thereof.

FIG. 9 is a perspective view of a washing machine according to another embodiment.

[Explanation of symbols]

 1 Washer main body 2 Outer washing tub 3 Inner washing tub 7 Pulsator 8 Supply pipe 9 Outer lid 10 Inner lid 11 Water inlet 13 Rotating shaft 16 Bearing 18 Injection port 30 Washing pipe

Claims (3)

[Claims] 1. A washing machine washing apparatus, wherein a washing liquid supply pipe is disposed on an inner surface of a washing tub, and an injection port for jetting the washing liquid is provided on a wall surface of the washing tub. .. 2. A double tub washing machine in which an independently rotating inner washing tub is installed inside an outer washing tub, wherein a washing machine body is provided in a space between the outer washing tub and the inner washing tub. A washing device for a washing machine, which is rotatably supported by a shaft, is rotatable in contact with an outer surface of an inner washing tub, and is provided with a stain remover formed by implanting a brush around the rotating shaft. .. 3. A double tub washing machine in which an independently rotating inner washing tub is installed inside the outer washing tub, and a cleaning liquid is internally provided in a space between the outer washing tub and the inner washing tub. And a cleaning pipe provided with an injection port for injecting a cleaning liquid toward the outer surface of the inner washing tub, the cleaning device for a washing machine.