JPH078680A - Fully automatic washing machine - Google Patents

Abstract

(57) [Summary] [Purpose] In a fully automatic washing machine in which a washing liquid is circulated from the upper part of a washing / dehydrating tub to perform washing, the washing liquid is evenly poured over the entire laundry to reduce uneven washing. [Structure] The pulsator 2 is rotatably disposed on the bottom of the washing / dehydrating tub 3, and a plurality of independent chambers are provided from the pump chamber 9 formed on the outer periphery of the lower blade 8 of the pulsator 2 to the upper part of the washing / dehydrating tub 3. The circulating water channel 7 is formed. The upper portions of the plurality of circulating water channels 7 are opened toward the inside of the washing / dehydrating tub 3 to form the opening 10
And the shower nozzle 11 is provided in each of the openings 10. The tips of the washing liquid discharged from the plurality of shower nozzles 11 by the rotation of the pulsator 2 intersect with each other at approximately the center of the washing / dehydrating tub 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic washing machine for washing clothes by circulating a washing liquid from the upper part to the lower part of a washing / dehydrating tub.

[0002]

2. Description of the Related Art In recent years, protection of the global environment has become a very important issue. Resource saving is also an important theme among them, and in the washing machine, water saving and detergent saving are strongly desired.

Conventionally, various methods have been proposed for saving water and detergent in a fully automatic washing machine. For example, as disclosed in JP-A-1-146584, a water channel forming cover is provided on a part of the inner wall of the washing tub to form a water channel between the water tub and the lower wing of the pulsator. In some pumps, the washing liquid on the lower side of the washing tub is guided to the upper part of the washing tub through the water channel, and the washing liquid is discharged from the plurality of discharge holes of the annular ring and poured onto the laundry. In this one,
If the washing liquid is constantly poured into the laundry, it can be washed even if the water level at the time of washing is a little low, so it is possible to save water and detergent.
It is extremely useful.

[0004]

However, in such a conventional fully automatic washing machine, since the washing liquid is discharged from the plurality of discharge holes of the annular ring, it is not possible to pour the washing liquid evenly over the entire laundry. There is a problem that it is difficult to reduce unevenness of washing by pouring the washing liquid into the laundry.

The present invention is intended to solve the above problems, and an object of the present invention is to evenly pour a washing liquid over the entire laundry to reduce uneven washing and prevent the washing liquid from splashing.

[0006]

In order to achieve the above object, the present invention has a pump chamber in which a pulsator is rotatably disposed on the bottom of a washing / dehydrating tub and is formed on the outer periphery of the lower blade of the pulsator. To the upper part of the washing / dehydrating tub, a plurality of independent circulating water channels are formed, and the upper parts of the plurality of circulating water channels are opened toward the inside of the washing / dehydrating tub to form an opening at the opening. The first problem-solving means is to provide shower nozzles so that the tips of the washing liquid discharged from the shower nozzles by the rotation of the pulsator intersect at approximately the center of the washing / dehydrating tub. .

Further, the washing liquid discharged from the shower nozzle of the first problem solving means is in the form of a thin film and is wider than the width of the shower nozzle at the landing point. I am trying.

[0008]

According to the first means for solving the above problems, the present invention provides:
The washing liquid discharged from the shower nozzles is such that the tip of the washing liquid discharged from each shower nozzle intersects with the center of the washing tub and the laundry rotates during the washing process. Even if the water is poured in and water is saved, uneven cleaning can be eliminated.

Further, according to the second means for solving the problems, the washing liquid discharged from the shower nozzle is poured into the laundry in a fan shape, and since it is thin like a film, the washing liquid is scattered even if it collides with the laundry. Will not occur.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, a water receiving tub 1 is a washing / dehydrating tub (hereinafter referred to as a tub) having a pulsator 2 rotatably arranged at the bottom thereof.
A washing tub 3 is included and is hung from a washing machine outer frame 5 by a hanging rod 4. A plurality of circulating water passage covers 6 are attached to the inner surface of the washing tub 3 to form a plurality of independent circulating water passages 7 with the washing tub 3. A lower blade 8 is integrally provided on the back surface of the pulsator 2, and a pump chamber 9 formed on the outer periphery of the lower blade 8 communicates with a plurality of circulating water channels 7. The upper portions of the plurality of circulating water channels 7 are opened toward the inside of the washing tub 3 to form openings 10, and the openings 10 are each provided with a shower nozzle 11. Further, a lint filter 12 is provided in a part of the opening 10. 13 is a motor, V
Pulsator 2 via belt 14 and reduction mechanism 15
To drive. 16 is a drain valve, 17 is a water supply valve, 18 is a lid,
Reference numeral 19 is a control device, and 20 is a fluid balancer for reducing vibration during dehydration.

The operation of the above structure will be described with reference to FIG.
When the start switch (not shown) is turned on, the controller 19 controls the water supply valve 17 to supply water up to a predetermined water level, and the washing process starts. When entering the washing process,
The motor 13 rotates right / pause / left according to the washing water flow.
The rotation is controlled by the rest and the control device 19. The controlled rotation of the motor 13 is transmitted to the pulsator 2 via the V-belt 14 and the speed reduction mechanism 15. Therefore, the pulsator 2 and the lower blade 8 of the pulsator 2 rotate according to the rotation of the motor 13, the laundry 21 and the washing liquid in the washing tub 3 are agitated, and the laundry 21 is washed. On the other hand, the washing liquid between the lower blade 8 of the pulsator 2 and the circulating water channel cover 6 is pushed outward by centrifugal force by the rotation of the lower blade 8 in accordance with the rotation of the pulsator 2, and the circulating water channel 7 is discharged. Through the shower nozzle 11 and the lint filter 12, it is intermittently poured into the washing tub 3. In addition,
After the washing liquid pushed out into the circulating water passage 7 by the lower blade 8 of the pulsator 2, a new washing liquid is supplied from below the central portion of the lower blade 8 of the pulsator 2. That is, the washing liquid between the water receiving tub 1 and the washing tub 3 is supplied, and the liquid level a between the water receiving tub 1 and the washing tub 3 is lower than the washing liquid level b in the washing tub 3. Become. However, washing tub 3
Since the washing liquid flows into the water receiving tub 1 through the dewatering hole (not shown) and the gap between the washing tub 3 and the pulsator 2, the liquid level difference is balanced at a certain value and becomes constant.

As described above, the washing liquid is discharged from the water receiving tank 3 through the lower blade 8 of the pulsator 2 and the circulating water passage 7 through the shower nozzle 11 or the lint filter 12,
It circulates through the laundry 21 on the route reaching the water receiving tank 3,
Since the detergent solution can be sufficiently permeated into the laundry 21 at the same time that the detergent is dissolved, the cleaning effect can be greatly enhanced.

Further, as shown in FIG. 2, the shower 22 discharged from the shower nozzle 11 is a thin film and is discharged in a fan shape so as to be wider than the width of the shower nozzle 11 at the landing point, and the falling point thereof. Is approximately in the center of the washing tub 3, and the fan-shaped tips are substantially intersected with each other. On the other hand, since the laundry 21 is rotated in the circumferential direction of the washing tub 3 by the pulsator 2 at the time of washing, the laundry 21 can be evenly poured with the washing liquid when combined with the fan-shaped shower 22. become. Therefore, even if the laundry 21 is above the water level b in the washing tub 3, it is possible to perform washing with less uneven washing. That is, water-saving and detergent-saving are possible.

[0015]

As is apparent from the above embodiments, according to the present invention, a pulsator is rotatably disposed on the bottom surface of the washing / dehydrating tank, and the pump chamber is formed on the outer periphery of the lower blade of the pulsator. To a top of the washing / dehydrating tub, a plurality of independent circulating water channels are formed, and an opening is formed by opening the upper portions of the plurality of circulating water channels toward the inside of the washing / dehydrating tub,
A shower nozzle is provided in each of the openings, and the tip of the washing liquid discharged from the plurality of shower nozzles by the rotation of the pulsator intersects at approximately the center of the washing / dehydrating tank. By the shower and the rotation of the laundry, the laundry liquid is evenly poured into the laundry, and even if the laundry is above the water level in the washing tub, it is possible to wash with less uneven washing. You can save water and detergent.

Further, since the washing liquid discharged from the shower nozzle has a thin film shape and is wider than the width of the shower nozzle at the landing point, the washing liquid discharged from the shower nozzle is fan-shaped to be washed. Since it is poured and is thin like a film, the washing liquid will not be scattered even if it hits the laundry.

[Brief description of drawings]

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

FIG. 2 (a) is a top view for explaining the shower shape of the fully automatic washing machine, and (b) is a vertical cross-sectional view for explaining the shower shape of the fully automatic washing machine.

[Explanation of symbols]

 2 Pulsator 3 Washing / dehydrating tank 7 Circulating water channel 8 Lower blade 9 Pump room 10 Opening 11 Shower nozzle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikio Nakano 7-6 Tonoshima-cho, Kadoma-shi, Osaka Prefecture In Excel Techno Co., Ltd.

Claims (2)

[Claims] 1. A plurality of circulating water channels in which a pulsator is rotatably disposed on the bottom of the washing / dehydrating tub, and from the pump chamber formed on the outer periphery of the lower blade of the pulsator to the upper part of the washing / dehydrating tub. The upper part of the plurality of circulating water channels is opened toward the inside of the washing / dehydrating tub to form an opening, and a shower nozzle is provided in each of the openings, and the plurality of pulsators are rotated by the rotation of the pulsator. A fully automatic washing machine in which the tip of the washing liquid discharged from the shower nozzle intersects at approximately the center of the washing / dehydrating tub. 2. The fully automatic washing machine according to claim 1, wherein the washing liquid discharged from the shower nozzle is in the form of a thin film and is wider than the width of the shower nozzle at the landing point.