JPH07308487A - Fully automatic washing machine - Google Patents

Abstract

PURPOSE:To provide the sufficient effect of a soft finishing agent in final rinsing and to prevent the soft finishing agent from being stuck on the washing after dehydration is finished. CONSTITUTION:A spinning tub 2 enabling dehydrating revolutions is provided inside a water receiving bath 1 arranged inside a washing machine outer frame 17, a pulsator 19 is arranged on the bottom of the spinning tub 2 so as to be freely revolved, a circulation water duct 25 for sprinkler nozzle is provided from a pump chamber 26 at the outer periphery of a downside blade 20 of the pulsator 19 to the upper part of the spinning tub 2, and a fluid balancer 33 is provided on the upper end part of the spinning tub 2. The fluid balancer 33 is provided with an automatic soft finishing agent flow-out device 34 for letting the liquid-state soft finishing agent flow into the water receiving bath 1 just before the start of final rinsing, and the soft finishing agent outlet of this automatic soft finishing agent flow-out device 34 is faced to the inside of the circulation water duct 25 for sprinkler nozzle.

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 having a fluid balancer provided with an automatic outflow device for a softening agent.

[0002]

2. Description of the Related Art Conventionally, a softening agent automatic outflow device provided in a fluid balancer in a fully automatic washing machine of this type is shown in FIG.
And, it is configured as shown in FIGS. 6 (a) to 6 (c). Less than,
The configuration will be described.

As shown in the figure, the water receiving tub 1 has a washing and dehydrating tub 2 rotatably provided therein. Washing and dehydration tank 2
The first chamber 5 is detachably provided between the fluid balancer outer wall 3 and the fluid balancer inner wall 4 provided at the upper end of the first chamber 5, and the second chamber 7 is separated from the first chamber 5 via the first moving passage 6. The third chamber 9 is provided through the second moving passage 8, the fourth chamber 11 is provided through the third moving passage 10, and the fourth moving passage 12 and the outflow passage 13 are provided. A softener outlet 14 is provided.

The operation of the above structure will be described. First, the softening agent introduced into the first chamber 5 at the start of washing moves first as indicated by an arrow a due to the centrifugal force during the first dehydration after the washing. It moves to the second chamber 7 through the passage 6. Second
The softening agent that has moved to the chamber 7 remains attached to the outer wall 15 of the second chamber 7 by centrifugal force as shown in b until the end of the first dehydration. After the completion of the first dehydration, that is, during the first rinsing, the softening agent moves to the third chamber 9 through the second moving passage 8 as shown by the arrow c.

Next, the softening agent moves to the fourth chamber 11 through the third moving passage 10 as shown by an arrow d by the centrifugal force during the second dehydration after the first rinsing. The softening agent that has moved to the fourth chamber 11 remains attached to the outer wall 16 of the fourth chamber 11 by the centrifugal force as shown by e until the end of the second dehydration. After the completion of the second dehydration, that is, at the time of final rinsing, the softening agent passes through the fourth moving passage 12 as indicated by an arrow f,
After passing through the outflow passage 13 as indicated by an arrow g, an arrow h
Out of the softening agent outlet 14 as shown in
Falls between the washing and dehydrating tub 2.

[0006]

However, with such a structure, the washing and dewatering tub 2 at the end of the second dewatering is completed.
The softening agent jumps out just before the rotation stop of No. 2, and the softening agent adheres to the wall surface of the water receiving tank 1 like i and sticks without falling down, reducing the softening effect during rinsing. There was a problem that it caused it. Even after the final dewatering, some softening agent still remains from the softening agent outlet 14, and the gap between the softening agent outlet 14 and the washing / dehydrating tank 2 as indicated by arrow j, and the arrow k.
As described above, there is a problem that it enters the washing / dehydrating tank 2 through the dewatering drain hole 2a provided in the washing / dehydrating tank 2 and directly adheres to the laundry. Furthermore, since the softening agent is dropped between the water receiving tank 1 and the washing / dehydrating tank 2,
When the water flow during rinsing is weak or the amount of laundry is large, the rinsing water containing the softening agent between the water receiving tub 1 and the washing / dehydrating tub 2 and the rinsing water in the washing / dehydrating tub 2 However, there was a problem in that a sufficient effect of the finishing agent could not be obtained due to insufficient filling.

The present invention solves the above-mentioned conventional problems. By dropping the softening agent into the circulating water channel provided in the washing / dehydrating tank, the effect of the softening agent in the final rinse can be sufficiently obtained. The first purpose is to prevent the softening agent from adhering to the laundry after the dehydration.

A second object is to prevent wash water and rinsing water from flowing back into the automatic softening agent feeding device when the softening agent is dropped into the circulating water channel provided in the washing / dehydrating tank. I am trying.

[0009]

In order to achieve the first object, the present invention provides a water receiving tub having a washing / dehydrating tub which is disposed in an outer frame of a washing machine and has a dewatering / rotating tub inside. A pulsator rotatably disposed on the bottom surface of the washing / dehydrating tub, and at least one circulating water passage provided from the pump chamber on the outer periphery of the lower blade of the pulsator to the upper part of the washing / dehydrating tub; A fluid balancer provided at the upper end of the washing / dehydrating tub, the fluid balancer is provided with an automatic outflow device for a softening agent that causes the liquid softening agent to flow into the water receiving tank immediately before the start of final rinsing. The first problem solving means is that the softening agent outlet of the automatic finishing agent outflow device faces the circulating water passage.

Further, in order to achieve the second object, a check valve capable of passing only in the outflow direction is provided at the softening agent outlet of the first problem solving means as the second problem solving means. There is.

[0011]

According to the first means for solving the above problems, the present invention provides:
The softening agent that fell into the circulating water channel during the final rinse is effectively put into the washing and dehydrating tub by the pump action of the pulsator and acts effectively on the laundry, so the effect of the softening agent in the final rinse Even if the softening agent flows out from the softening agent outlet after the completion of spin-drying, the softening agent falls into the circulating water channel, so that it can be prevented from adhering to the laundry.

According to the second means for solving the problems, since the washing water and the rinse water do not flow back into the automatic softening agent feeding device, the softening agent is not diluted during washing and the softening agent It is possible to suppress reverse outflow from the charging port, to reliably charge the softening agent during the final rinsing, and to obtain an effective softening effect.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 1, the washing machine outer frame 17 suspends the water receiving tub 1 with a hanging rod 18, and the washing and dehydrating tub 2 is provided inside the water receiving tub 1 so as to be rotatable for dehydration. There is. In the washing / dehydrating tub 2, a pulsator 19 is rotatably arranged at the bottom, and the lower blade 20 is integrated with the pulsator 19.
Is provided. The motor 21 drives the pulsator 19 or the washing / dehydrating tub 2 via the V belt 22 and the speed reduction mechanism 23.

The circulating water passage 24 for lint and the circulating water passage 25 for sprinkling nozzle are provided so as to extend from the pump chamber 26 on the outer periphery of the lower blade 20 of the pulsator 16 to the upper part of the washing / dehydrating tank 2, and the lint filter 27 and Watering nozzle 2
8 are provided respectively. The drain valve 29 drains the wash water in the water receiving tank 1, and the water supply valve 30 serves as the water receiving tank 1.
To supply water to. A lid 31 on top of the washing machine outer frame 17
Is provided so as to be openable and closable, and a control device 32 is provided.

The fluid balancer 33 is provided at the upper end of the washing / dehydrating tank 2 in order to reduce vibration during dehydration.
The fluid balancer 33 is provided with an automatic softening agent outflow device 34. The softening agent automatic outflow device 34 is
2 and 3 (a) to 3 (c), the outflow passage 13 communicates with the sprinkling nozzle circulation water passage 25 while inclining downward, and the softening agent outlet 14 Faces the circulating water channel 25 for the watering nozzle.

The operation of the above structure will be described. First, as shown in the drawing, the laundry 35 is put into the washing / dehydrating tub 2, and the softening agent is further put into the first chamber 5, and then,
When a start switch (not shown) is pressed, the control device 32
Thus, the water supply valve 30 is controlled to supply water to a predetermined water level, and the washing process is started. When the washing process is started, the motor 21 is controlled by the control device 32 to rotate right, stop, rotate left, and stop according to the flow of washing water. The controlled rotation of the motor 21 is transmitted to the pulsator 19 via the V belt 22 and the speed reduction mechanism 23. Therefore, the pulsator 19 and the lower blade 20 rotate according to the rotation of the motor 21, and the laundry 35 and the washing liquid in the washing / dehydrating tub 2 are stirred,
The laundry is washed.

On the other hand, the water between the lower blade 20 of the pulsator 19 and the water receiving tank 1 is pushed outward by centrifugal force by the rotation of the lower blade 20, and the lint circulation water channel 24 and the sprinkling nozzle circulation water channel. Lint filter 2 through 25
7 and the sprinkling nozzle 28 are intermittently poured into the washing / dehydrating tub 2 in response to the rotation of the motor 21. When the washing process is completed, the process proceeds to the first dehydration process.

At this time, the softening agent charged into the first chamber 5 is moved by the centrifugal force of the first dehydration to the first
It moves through the moving passage 6 to the second chamber 7. The softening agent moved to the second chamber 7 remains attached to the outer wall 15 of the second chamber 7 by the centrifugal force as shown in b until the end of the first dehydration process. After the completion of the first dewatering process, that is, during the first rinsing process, the softening agent moves to the third chamber 9 through the second moving passage 8 as indicated by the arrow c.

Next, when the first rinsing process is completed, the process proceeds to the second dehydration process. At this time, the centrifugal force of the second dehydration causes the fourth chamber 11 to pass through the third moving passage 10 as shown by an arrow d.
Move to. The softening agent moved to the fourth chamber 11 is the second
Until the end of the dehydration process, the outer wall 16 of the fourth chamber 11 is attached to the outer wall 16 by centrifugal force as shown by e. After the completion of the second dehydration step, that is, at the start of the final rinsing, the softening agent passes through the fourth moving passage 12 as indicated by the arrow f, and then the arrow g.
As shown by arrow h, the softening agent flows out from the softening agent outlet 14 and falls into the sprinkling nozzle circulation water passage 25.

As described above, according to the present embodiment, the softening agent dropped into the sprinkling nozzle circulating water channel 25 before the start of the final rinsing is mixed with the rinsing water in the sprinkling nozzle circulating water channel 25 and melted. The water can be poured from the sprinkling nozzle 28 into the washing / dehydrating tub 2 and directly onto the laundry 35, so that the effect of finishing the softening agent can be greatly improved.

Further, it is assumed that the softening agent automatic outflow device 34 is used.
Even if the softening agent remaining therein flows out from the softening agent outlet 14 after the final dewatering, the softening agent falls into the water spray nozzle circulating water passage 25, so that it does not directly adhere to the laundry 35. In addition, the laundry 35 is not soiled.

Further, since the washing water or the rinsing water always reciprocates in the vicinity of the softening agent outlet 14, the softening agent outlet 14 is always washed.
There is no problem that the softening agent sticks and blocks the outlet.

Next, a second embodiment of the invention will be described with reference to FIG. The same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown, the softener outlet 14
Is provided with a step portion 36, and the check valve 37 is rotatable only in a direction of an arrow i around a shaft portion 38 provided on the upper portion of the softening agent outlet 14. An arrow j is provided near the shaft 38.
A stopper 39 is provided to prevent rotation in the direction.

The operation of the above structure will be described. First, at the start of the final rinsing, the softening agent passes through the outflow passage 13 as indicated by arrow g and as indicated by arrow h as shown by arrow g.
As described above, it exits from the softening agent outlet 14 between the step portion 36 and the check valve 37 and falls into the circulating water passage 25 for the water spray nozzle. Next, when the final rinsing starts, as shown in FIG. 4 (b), the rinsing water flows in the water channel 25 for the water spray nozzle by the arrow k.
As described above, the water is pumped up and poured from the sprinkling nozzle 28 into the washing / dehydrating tank 2. At this time, as shown in Fig. 4 (b),
The check valve 37 is pushed by the flow of rinse water (arrow k), rotates as shown by arrow i, and a part of the check valve 37 comes into contact with the step portion 36, thereby sealing the softening agent outlet 14. To do.

As described above, according to this embodiment, when washing,
Since it is possible to prevent the wash water and the rinse water from flowing back into the automatic softening agent feeding device 34 at the time of rinsing, it is possible to prevent malfunction of the automatic softening agent feeding device 34 and deterioration of the finishing effect of the softening agent. Further, it is possible to prevent backwashing of washing water and rinsing water from the softening agent outlet 14.

Further, since the washing water or the rinsing water always reciprocates in the vicinity of the softening agent outlet 14, the check valve 37 and the stepped portion 36 are always washed.
There is no problem that the softening agent sticks and blocks the outlet.

In each of the above-mentioned embodiments, the softening agent is dropped into the sprinkling nozzle circulating water passage 25, but it goes without saying that it may be dropped into the lint circulating water passage 24.

[0030]

As described above, according to the present invention, a water receiving tub having a washing / dehydrating tub which is disposed in an outer frame of a washing machine and which can be rotated by dehydration, and a rotatably mounted bottom surface of the washing / dehydrating tub. The pulsator is provided, at least one circulating water passage extending from the pump chamber on the outer periphery of the lower blade of the pulsator to the upper part of the washing / dehydrating tub, and provided at the upper end of the washing / dehydrating tub. A fluid balancer is provided, and the fluid balancer is provided with an automatic outflow device for a liquid softening agent that flows out into the water receiving tank immediately before the start of final rinsing. Since the outlet faces the circulation channel, the softening agent that fell into the circulation channel during the final rinsing mixes with the rinsing water and is effectively thrown together with the rinsing water into the washing / dehydrating tank by the pump action of the pulsator. Since it acts effectively on laundry, the effect of the softening agent in the final rinse can be sufficiently obtained, and even if the softening agent flows out from the softening agent outlet after the completion of dehydration, Since it falls into the circulating water channel, it can be prevented from adhering to the laundry.Furthermore, since the washing water or rinsing water always reciprocates in the vicinity of the softening agent outlet, the softening agent outlet is always Since it has been washed, there is no problem that the softening agent sticks and the outlet is blocked.

Further, since the check valve which can pass only in the outflow direction is provided at the softening agent outlet, washing water and rinsing water do not flow back into the automatic softening agent feeding device, so the softening agent is washed during washing. It is possible to suppress the backflow of the softening agent from the inlet without thinning it, to reliably add the softening agent during the final rinsing, and to obtain an effective softening effect. Since washing water or rinsing water always reciprocates in the stop valve portion, the check valve portion is always washed, so that there is no problem that the softening agent adheres and the outlet is blocked.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional view of a main part of an automatic outflow device for a softening agent of the fully automatic washing machine.

FIG. 3 (a) to (c) are cross-sectional views of a main part of the automatic softening agent outflow device of the fully automatic washing machine.

FIG. 4 (a) is a sectional view in the vicinity of a softening agent outlet of an automatic outflow device for a softening agent for a fully automatic washing machine according to a second embodiment of the present invention. Sectional view for explaining the operation of the outflow device

FIG. 5 is a cross-sectional view of a main part of a conventional automatic softening agent outflow device for a fully automatic washing machine.

FIG. 6 (a) to (c) are sectional views of the main part of the automatic outflow device for the softening agent of the fully automatic washing machine.

[Explanation of symbols]

 1 Water Receiving Tank 2 Washing / Dehydrating Tank 14 Softening Agent Outlet 17 Washing Machine Outer Frame 19 Pulsator 20 Lower Blade 25 Circulating Water Channel (Circulating Water Channel) for Sprinkling Nozzle 26 Pump Room 33 Fluid Balancer 34 Automatic Softening Agent Outflow Device

Claims (2)

[Claims] 1. A water receiving tub disposed in an outer frame of a washing machine and having a washing / dehydrating tub capable of rotating for dehydration therein; a pulsator rotatably disposed on a bottom surface of the washing / dehydrating tub; At least one circulating water channel provided from the pump chamber on the outer periphery of the lower blade of the pulsator to the upper part of the washing / dehydrating tub, and a fluid balancer provided at the upper end of the washing / dehydrating tub The balancer is equipped with an automatic outflow device for the softening agent that allows the liquid softening agent to flow out into the water receiving tank immediately before the start of the final rinsing, and the softening agent outlet of this automatic outflow device for softening agent is placed in the circulation channel. No fully automatic washing machine. 2. The fully automatic washing machine according to claim 1, wherein the softening agent outlet is provided with a check valve which can pass only in the outflow direction.