JP2002219295A - Fully automatic washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fully automatic washing machine enhancing washability of laundry by applying a force to prevent horizontal rotation around a washing/ drying tub to produce a crumpling effect. SOLUTION: The fully automatic washing machine has a pulsator 3 disposed at the bottom of the washing/drying tub 4 having a ring-shaped balancer 14 at its top. A baffle 18 which protrudes into the tub 4 is formed on the inner wall surface of the tub 4; if the tub 4 rotates in the direction opposite to the pulsator 3 during washing, the force to inhibit horizontal rotation is applied to the laundry around the tub 4 to produce a crumpling effect for enhanced washability.

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.

[0002]

2. Description of the Related Art A conventional fully automatic washing machine is disclosed in
It has a configuration as shown in FIG. 11 as described in -9558. That is, a washing and dewatering tub 4 having a pulsator 3 at the bottom is disposed inside a water receiving tub 2 disposed in the outer box 1, and a motor 5 is disposed below the washing and dewatering tub 4. The rotation of the motor 5 is applied to the washing shaft 8 via a pulley, a V-belt, a clutch mechanism 6 and a speed reduction mechanism 7, and the rotation axis of the motor 5 is connected to a pulley, a V-belt,
The power is transmitted to the dehydrating shaft 9 of the washing / dewatering tub 4 via the clutch mechanism 6.

A drain pipe (not shown) opened at the bottom of the water receiving tank 2 is connected to a drain hose (not shown) via a drain valve (not shown). The outlet of the washing water formed at the bottom of the washing and dewatering tub 4 and the upper part of the washing and dewatering tub 4 are connected by a circulating water channel 13.

The pulsator 3 has on its upper surface wings 3a for stirring the washing water in the washing and dewatering tub 4, and on its lower surface, the washing water in the washing and dewatering tub 4 passes from the bottom to the upper part through a circulation channel 13 as a passage. A circulating wing 3b is provided.

[0005] In the figure, reference numeral 14 denotes a ring-shaped balancer provided above the washing and dewatering tub 4. The circulation channel 13 circulates the washing water in the washing and dewatering tub 4 from the bottom to the top so that the water can be well mixed with the laundry, the detergent can be well dissolved, and the circulation channel 13 Top outlet 1
5 is provided with a lint filter 16 to efficiently collect lint contained in the washing water. As a configuration, a circulation channel 13 is provided at one location in the washing and dewatering tub 4.
Further, as shown in detail in FIG. 12, for example, the discharge port 15 at the upper end of the circulating water channel 13 is provided in the balancer 14.

At the time of washing, the washing water in the washing and spin-drying tub 4 is washed by the wings 3a of the pulsator 3 by the rotational force of the pulsator 3.
And the wings 3b of the pulsator 3 pump the washing water in the washing and dewatering tub 4 from below into the circulation channel 13 and flow into the washing and dewatering tub 4 again from the upper discharge port 15, thereby washing the washing and dewatering. Water is circulating.

A drain pipe 10 opening at the bottom of the water receiving tub 2 is connected to a drain hose 12 via a drain valve 11, and a washing water formed at the bottom of the washing and dewatering tub 4 below the pulsator 3. And an upper portion of the washing and dewatering tub 4 are connected by a circulation channel 13. In the figure, 14 is a washing and dewatering tub 4
This is a ring-shaped balancer provided on the upper part of.

[0008]

Since the circulating water passage 13 is located at one location, the washing water is agitated by the rotational force of the pulsator 3, but the circulating water forms a short cycle and the water circulation efficiency is poor. Also, lint collection efficiency is poor. Further, since the washing water is pushed up by the rotating force of the pulsator 3, the discharge port 15 of the circulating water is connected to the balancer 1 above.
When it is located at 4, the circulation amount of the circulating water in the case of the low water level becomes small, and also in this case, the water circulation efficiency is poor and the lint collection efficiency is not good. That is, there is a problem that the cleaning efficiency of the cleaning object is not good.

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the disadvantages of the prior art, and to provide a washing effect by applying a horizontal rotation suppressing force to the laundry around the washing and spin-drying tub, thereby producing a washing effect and improving the washing performance. The machine.

[0010]

According to the present invention, there is provided a fully automatic washing machine according to the present invention, wherein a pulsator is provided at the bottom of a washing and dewatering tub having a ring-shaped balancer at the top. In the washing machine, a baffle protruding inside the washing and dewatering tub is formed on an inner wall surface of the washing and dewatering tub.

According to a second aspect of the present invention, in the fully automatic washing machine, the baffle is integrally formed on an outer surface of a circulating water channel cover forming a circulating water channel isolated from the inside of the washing and dewatering tub, and inside the washing and dewatering tub. The gist of the present invention is as follows.

In a third aspect of the present invention, the baffle is formed so that the baffle is formed so as to gradually increase in height from the upper part to the bottom part of the washing and dewatering tub.

In a fourth aspect of the present invention, the baffle is disposed below a high water level position on an inner wall of the washing and dewatering tub.

In the fully automatic washing machine according to the fifth aspect, a triangular prism-shaped protrusion having a smaller projecting distance than the baffle is provided on an inner peripheral surface of the washing and dewatering tub. The gist is that it is provided vertically between the dewatering holes formed in the peripheral surface.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is an explanatory view showing an embodiment of a fully automatic washing machine of the present invention. Since the entire configuration of the washing machine is as described above, detailed description thereof will be omitted. However, in this figure, 10 is a drain pipe opened at the bottom of the water receiving tank 2, 11 is a drain valve, 12 is a drain hose, and the drain pipe 10 is a drain hose 1 through the drain valve 11.
2 are connected.

The fully automatic washing machine of the present invention also has a washing and spin-drying tub 4.
Below the pulsator 3 provided at the bottom of the
Forms a circulation channel 13 with the upper part of
In the present invention, the material of the washing and dewatering tub 4 is made of stainless steel, and the inner wall of the washing and dewatering tub 4 is fixed to the washing and dewatering tub 4 by screws or the like so as to be integrally formed in the inside of the tub. To form a circulation channel 13. The discharge port 15 at the upper end of the circulation channel 13 is
, And above the water level when the set water level is high.

The circulating water passages 13 are arranged at equal intervals on the inner wall circumference of the washing and dewatering tub 4 at equal intervals. In this embodiment, three circulating water passages are arranged at equal intervals. A lint filter 16 made of a bag-like net is configured to be freely attached to the discharge port 15 at the tip of the thirteen.
That is, the discharge port 15 has an inverted box shape as shown in FIG. 2, and a pair of both sides is provided with a locking portion 21 on the opening surface side, and the locking portion 21 is shown in FIG. A lint filter 16 having a bag-shaped net stretched into such a rectangular frame is slid and inserted.

FIG. 4 is a sectional view showing a state in which a lint filter 16 is attached to the discharge port 15. further,
As shown in FIG. 5, a baffle 19 projecting into the washing and dewatering tub 4 is integrally formed on the outer surface of the circulation waterway cover 18 forming the circulation waterway 13, as shown in FIG. This baffle 19
Is formed so as to gradually increase from the upper part to the bottom part of the washing and dewatering tub 4 so as to be flared, and so that the upper end is located below the high water level of the inner wall of the washing and dewatering tub 4.

Next, the operation will be described. In the washing and rinsing process, the pulsator 3 rotates, and the wings 3a generate a flow of washing water and rinsing water in the washing and dewatering tub 4 to stir the laundry. At the same time, the wings 3
b through the inlet below the pulsator 3 to the circulation channel 13
The washing water sucked into the inside passes through the lint filter 16 from the discharge port 15 at the upper end and is discharged again into the washing and dewatering tub 4.

As described above, the washing water in the washing and dewatering tub 4 is circulated through the circulation water passage 13, so that the washing water is well adapted to the laundry and, at the same time, lint generated from the laundry contained in the washing water is reduced. It is efficiently collected by the lint filter 16.

In this case, the discharge port 15 is formed below the balancer 14 and above the water level when the set water level is a high water level.
, The height of the discharge port 15 becomes lower, as a result, as shown in the curve diagram of FIG.
Even in the case of low water level, the circulation amount does not decrease significantly. The experimental results shown in FIG. 6 are obtained when the height of the discharge port 15 is set to be about 8 cm lower than when the balancer 14 is provided. In this curve diagram, a black point is provided in the conventional balancer 14 and a white point is the case in this embodiment, and indicates the amount of circulation with respect to the set water level.

By providing a plurality of circulating water passages 13 and attaching a lint filter 16 to each of them, the discharge amount increases, the lint collecting effect increases, and a short cycle can be prevented. FIG. 7 is a graph showing lint collecting capacity values when the lint filter 16 is provided at one place and when the lint filter 16 is provided at three places. The washing conditions include (1) load 4.2 kg. (70% of rating, JIS cloth 90cm, 50
(2) washing (no detergent) for 10 minutes, water volume 58 liters, (3) rinsing twice, no dehydration, rinsing for 2 minutes each, (4) lint 3g (100% cotton staple yarn length 1c)
m), (5) 1 time, (6) control energization 1.0 second, stop 0.5 second, rotation speed 140 rpm, (7) baffle 20
3 mm × 235 mm parallel type, the washing and dewatering tub 4 is not fixed, but is in a free state. When the washing is performed with a constant water flow, the amount of lint collected by the lint filter 16 is three places in the lint filter 16. The result was that much more lint was collected.

Embodiment 2 In this embodiment 2, as shown in FIG.
The discharge ports 15 are combined at one place by a connecting pipe 22, and a lint filter 16 is attached here. In this embodiment, the lint can be collected at one place, so that the cleaning becomes easy.

Embodiment 3 In Embodiment 3, as shown in FIG. 9, another discharge port 17 to which a lint filter 16 can be attached is formed at an intermediate position in the height direction of the circulating water channel 13. Since the other discharge port 17 is installed at an intermediate position in the height direction of the circulation channel 13, the ratio of the opening area to the opening area of the discharge port 15 is １ ／. The location where the other discharge ports 17 are formed is not limited to the intermediate position, and a plurality of the discharge ports 17 may be provided at positions slightly higher than the set water level (high / medium / low / small) of the washing water amount. In this case, the opening area is determined according to the height ratio. For example, when it is located at a position 2/3 in the height direction, the ratio of the opening area to the opening area of the discharge port 15 at the upper end is set to 2/3.

By forming another discharge port 17 at a halfway position in the height direction of the circulating water channel 13 as described above, the discharge amount can be increased, and some circulating water can be blown out from the discharge port 17. Thereby, the rotation of the laundry is improved and the uniform stirring of the washing liquid is further promoted.

Further, by determining the opening area in accordance with the ratio of the height of the installation position, each of the discharge ports 1 in the up-down direction is determined.
Approximately equal amounts of washing water are discharged from both 5 and 17. Further, by attaching the lint filter 16 to the discharge port 17, the lint collecting and repairing efficiency can be improved as compared with the case where the water level is low.

Fourth Embodiment FIG. 10 shows a main part of a fourth embodiment of the present invention. In this fourth embodiment, a triangular prism-shaped projection is provided on a side peripheral surface of a washing and dewatering tub 4 so as to project inward. Reference numeral 20 is provided between the dewatering holes 23 by pressing in the vertical direction.
The projecting distance of the projection 20 into the tank is smaller than that of the baffle 19.

The protrusion 20 and the baffle 19 have the effect of a washing plate during washing, and the washing efficiency is further increased.
In addition, at the time of dehydration, the water from the laundry travels along the triangular prism surface and is guided to the dehydration holes, so that the dehydration efficiency is increased.

[0029]

As described above, according to the present invention, according to the fully automatic washing machine of the first aspect, the baffle projecting inside the washing and dewatering tub is formed on the inner wall surface of the washing and dewatering tub. Therefore, for example, when the washing and dewatering tub is rotated in the opposite direction to the pulsator during washing, a horizontal rotation suppressing force is applied to the laundry around the washing and dewatering tub, so that the fir washing effect is generated and the washability is improved.

According to the fully automatic washing machine of the second aspect, the baffle is integrally protruded inside the washing and dewatering tub on the outer surface of the circulating water channel cover of the circulating water channel. Becomes easier.

According to the third aspect of the present invention, the baffle is formed so as to gradually increase in height from the top to the bottom of the washing and dewatering tub so that, for example, the washing and dewatering tub is combined with the pulsator during washing. By rotating in the opposite direction, a horizontal rotation suppressing force is applied to the laundry around the washing and dewatering tub, so that a fir-washing effect is generated, the washing property is improved, and splashing of water can be prevented.

According to the fourth aspect of the present invention, the baffle is disposed below the high water level of the inner wall of the washing and dewatering tub. Water splash can be prevented.

According to the fully automatic washing machine of the fifth aspect, in addition to the above-described operation, a triangular prism provided vertically between the dewatering holes formed in the side peripheral surface of the washing and dewatering tub. The protrusions act as a washing plate with the baffle during washing, further increasing the washing efficiency, and at the time of spin-drying, the water separated from the laundry is guided through the triangular prism-shaped surface to the spin-drying hole, so the spin-drying efficiency is also improved. Go up.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view showing an embodiment of a fully automatic washing machine of the present invention.

FIG. 2 is an enlarged partial view showing an embodiment of a discharge port of the fully automatic washing machine of the present invention.

FIG. 3 is an enlarged perspective view showing an embodiment of a lint filter of the fully automatic washing machine of the present invention.

FIG. 4 is an enlarged sectional view showing an embodiment in which a lint filter is attached to a discharge port of the fully automatic washing machine of the present invention.

FIG. 5 is an enlarged perspective view showing an embodiment of a circulation channel cover of the fully automatic washing machine of the present invention.

FIG. 6 is a curve diagram showing a comparison between a circulating water amount by a fully automatic washing machine of the present invention and a conventional circulating water amount.

FIG. 7 is a characteristic diagram showing a comparison between a lint collection amount by a fully automatic washing machine of the present invention and a conventional lint collection amount.

FIG. 8 is a plan view showing the relationship between a discharge port and a connecting pipe in another embodiment of the fully automatic washing machine of the present invention.

FIG. 9 is a structural explanatory view showing another embodiment of the fully automatic washing machine of the present invention.

FIG. 10 is an explanatory view of a washing and dewatering tub showing another embodiment of the fully automatic washing machine of the present invention.

FIG. 11 is a diagram illustrating the configuration of a conventional fully automatic washing machine.

FIG. 12 is an explanatory view showing a circulation channel of a conventional fully automatic washing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Outer box 2 ... Water receiving tank 3 ... Pulsator 4 ... Washing and dewatering tank 5 ... Motor 6 ... Clutch mechanism 7 ... Reduction mechanism 8 ... Washing shaft 9 ... Dewatering shaft 10 ... Drain pipe 11 ... Drain valve 12 ... Drain hose 13 … Circulating water channel 14… Balancer 15… Discharge port 16… Lint filter 17… Discharge port 18… Baffle

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideo Park 2-14-40 Ofuna, Kamakura City Inside Mitsubishi Electric Corporation Living Environment Research and Development Center (72) Inventor Masaji Kukino 2-14-40 Ofuna, Kamakura City Inside Mitsubishi Electric Corporation Living Environment Research and Development Center (72) Inventor Shinsuke Ise 2--14-40 Ofuna, Kamakura City Inside Mitsubishi Electric Corporation Living Environment Research and Development Center (72) Inventor Yoshio Yoshida 2-14, Ofuna Kamakura City No. 40 Mitsubishi Electric Corporation Living Environment Research and Development Center (72) Inventor Tetsuo Ishii 1-1-1 Yamate, Funabashi-shi, Chiba Japan Inside Funabashi Works, Nippon Steel Corporation (72) Inventor Norihiko Ishikawa Yamate, Funabashi-shi, Chiba 1-1-1 Nippon Kentei Co., Ltd. Funabashi Works (72) Inventor Kunio Inose 1-1-1, Yamate, Funabashi-shi, Chiba Japan Tetsu Ken Co., Ltd. Funabashi Works in the F-term (reference) 3B155 AA01 BB08 CB06 DC16 DC22 DC25 FD08 FE02 GC10 MA02 MA05

Claims (5)

[Claims] 1. A fully automatic washing machine in which a pulsator is arranged at the bottom of a washing and dewatering tub having a ring-shaped balancer at the top, wherein the pulsator is provided on an inner wall surface of the washing and dewatering tub and inside the washing and dehydration tub. A fully automatic washing machine characterized by forming a baffle. 2. The washing and dewatering tub according to claim 2, wherein the baffle is formed integrally with the inside of the washing and dewatering tub on an outer surface of a circulation waterway cover forming a circulation waterway isolated from the inside of the washing and dewatering tub. The fully automatic washing machine according to claim 1. 3. The fully automatic washing machine according to claim 1, wherein the baffle is formed so as to gradually increase in height from the top to the bottom of the washing and dewatering tub. 4. The fully automatic washing machine according to claim 1, wherein the baffle is disposed below a high water level of an inner wall of the washing and dewatering tub. 5. A spin-drying / water-drying tub having a triangular prism-shaped protrusion projecting from the inner peripheral surface of the washing-and-water-drying tub having a smaller projecting distance than the baffle. The fully automatic washing machine according to any one of claims 1 to 4, wherein the washing machine is provided between the hole and the dewatering hole in a vertical direction.