JP3404465B2 - Balance adjustment device for fully automatic washing machine - Google Patents

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic washing machine in which a pulsator in a water tank can be rotated independently or simultaneously with a dehydration tank.

2. Description of the Related Art Recently, in this type of fully automatic washing machine,
As shown in FIG. 10, there is one in which a soft finish agent for clothes is put into a water tank during the rinsing step, and its configuration and action are as follows. An opening / closing lid 3 that opens and closes when putting clothes on is pivotally supported on an upper frame 2 that constitutes the upper part of the washing machine body 1, and a control circuit unit 4 is provided on the lower surface side of a front operation panel 2 ′. Reference numeral 5 denotes a pulsator, which rotates the drive motor 6 with a belt 7 and a clutch mechanism 8 with a deceleration function.
Receive through and rotate. A dewatering tank 9 has a balancer case 11 having a lint collection filter 10 at the upper peripheral portion.
And a cover frame body 1 which forms a circulating water channel 12 'for collecting lint by the filter 10 on the inner surface thereof.
2 is provided. The dehydration tub 9 is a water tub 13 that is elastically suspended and supported by a support member 14 in the main body 1 of the washing machine.
It is located inside and is rotatably supported by a multi-shaft outer shaft derived from the clutch mechanism 8 with a deceleration function. The pulsator 5 is attached to the inner shaft of the double shaft. The balancer case 11 is detachably provided with a liquid agent charging container 15 of an automatic softening agent charging device. The balancer case 11 is made of synthetic resin annular groove bodies 11A and 11A.
B is heat-sealed liquid-tightly to form a cavity inside,
Liquid is enclosed in the cavity. FIG. 11 shows a state in which the liquid agent input container 15 is removed from the balancer case 11, and 16 is a tray having an injection hole 17 in the central portion. Reference numeral 18 is a hook, which includes a push button 18a and a claw 1.
8b, it can be detachably mounted in the groove 19 on the balancer case 11 side. Further, in the conventional washing machine, the clutch mechanism 8 with the deceleration function is attached by the reinforcing plate 20 fixed to the bottom surface of the water tank 13, and the driving motor 8 is attached to the reinforcing plate 20.
Weight 21 for correcting the amount of movement of the center of gravity due to
Is stuck.

But which was provided c Eight 20 as described above THE INVENTION An object you try solving] can be corrected movement of the center of gravity by the driving motor 6, correct the unbalance of the rotating portion is a vibration source during dewatering It doesn't happen. Liquid is enclosed in the balancer case 11 for the purpose of correcting this, but the dewatering tank 9 that is a rotating body has a lint recovery filter 1
Since 0 and the filter cover 12 are provided, they are unbalanced even when the load cloth is not applied. As a result, even in the case of no load, or when the load of clothes is biased toward the cover frame 12 side, the vibration is further increased.

The present invention has been made to solve the problems of the conventional fully automatic washing machine described above, and only the pulsator rotates during the washing and rinsing steps.
In addition, the pulsator and dehydration tank rotate together during dehydration.
To be one that is applied to the automatic washing machine, the upper Symbol dehydration
The weight around the upper edge of the tank in the dehydration tank due to uneven distribution of clothes.
A rose filled with liquid to correct the volume imbalance.
Sensor case and the inner wall surface of the dehydration tank is
Direction, and form a circulation channel that opens at both ends.
As the setter rotates, the water in the dehydration tank is routed through the circulation channel.
That circulates in the opposite direction, it faces the above circulation channel.
The weight balance with the member that forms the circulating water channel at the position
A balance means for taking the balance is provided, and the balance means is
The liquid in the balancer case is based on the maximum imbalance of clothing.
Position is closer to the center than the liquid level line when moving to the maximum.
It is characterized by being placed . In addition,
Characteristic that the lance means is an arc-shaped liquid filled chamber
It is what Therefore, according to the present invention, the balance means is provided at a position facing the circulating water channel so as to balance the weight with the member forming the circulating water channel. Vibration can be reduced. Further, in the present invention, the balance means is positioned closer to the center of the dehydration tank than the position of the liquid when the liquid in the balance case is moved by the maximum amount in the position direction of the balance means based on the maximum deviation of the clothes. Therefore, the imbalance of the dehydration tank can be corrected and the vibration can be reduced.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings . Figure 1 shows an embodiment of the present onset bright
To softener is a side sectional view of a fully automatic washing machine having a dosing device, for convenience conventional automatic washing machine of the same portion shown in Figure 10 described are denoted by the same reference numerals. Therefore, 1
Is a washing machine body, 2 is an upper frame, 3 is an opening / closing lid, 4 is a control circuit unit provided on the operation panel 2 ', 5 is a pulsator,
6 is a drive motor, 7 is a belt, 8 is a clutch mechanism with a deceleration function, 9 is a dehydration tank, 10 is a lint collection filter, 1
1 is a balancer case, 12 is a cover frame that forms a circulating water passage 12 ′ on the side wall surface inside the dehydration tank 9, and 14 is a support member. In the invention according to the present embodiment, in the fully-automatic washing machine having the above-described structure, the balancer case 11 is provided with the following softening agent feeding device 15. FIGS. 2, 3 and 4 show the configuration thereof. First to fifth liquid agent holding chambers 16 to 20 are provided in the balancer case 11, and each chamber is sequentially connected to the communication ports 21 to 24. It is in communication. The inner wall surfaces of the first and third liquid agent holding chambers 16 and 18 are inclined wall surfaces 16a and 18a having a rising slope toward the communication ports 21 and 23 communicating with the next holding chambers 17 and 19, respectively. The bottom surfaces of the fourth liquid agent holding chambers 17 and 19 are inclined bottom surfaces 17a and 19a descending toward the communication ports 22 and 24 leading to the next holding chambers 18 and 20, respectively. Further, in the first liquid agent holding chamber 16, the injection port 25 for injecting the softening agent is formed in the upper wall portion of the annular groove 11A forming the upper half of the balancer case 11, and the last holding In the fifth liquid agent holding chamber 20 which is a chamber, the outlet 26 is formed in the annular groove 11B forming the lower half of the balancer case 11, and the bottom surface thereof is the inclined bottom surface 20a that descends toward the outlet 26. . Reference numeral 27 denotes an injection case composed of an elongated dish-shaped body, and as shown in FIGS. 4 and 6, has a spout 27a at one end of the bottom surface thereof and a fitting cylinder portion 27b communicating with the spout 27a on the lower surface thereof. It is provided. The cylindrical portion 27b has a notch 27c extending vertically and a locking flange 27d provided at the peripheral edge of the tip. The injection case 27 is rotatably fitted in the injection port 25 with the fitting cylinder portion 27b. At this time, the locking brim 27 is locked to the peripheral edge of the injection port 25 to prevent the fitting tubular portion 27b from coming off. However, the fitting tubular portion 27b is not
When pulling out from 5, the fitting case 27b is deformed by the elastic force of the notch 27c by pulling the injection case 27 a little, and the fitting case 27b can be easily pulled out. Further, as is clear from the figure, the bottom surface of this injection case 27 is a downwardly inclined surface toward the spout 27a. Therefore, when the user pours the softening agent into the injection case, the softening agent is removed. Even if it has a strong viscosity, it flows through the inclined surface and flows into the first liquid agent holding chamber 16 below the spout 27a.
Further, as shown in FIG. 5, a receiving portion 11a for accommodating the injection case 27 is provided on the upper surface of the annular groove 11A in the upper portion of the first liquid agent holding chamber 16, and the receiving portion 11a is also provided. The engaging projection 11b is provided on the edge portion of the dehydration tub near the center in FIG. The engaging recess 27e engages with the engaging protrusion 11b, and the injection case 27 is stably stored and held in the receiving portion 11a. On the other hand, the injection case 27 can be pulled out from the receiving portion 11a as shown by a chain line 80 in the figure by rotating the fitting cylindrical portion 27b as an axis. Opening restricting protrusions 11c are provided at the edges of the receiving portion 11a so that θ is 90 ° or less. As a result, the case 2 for injection is used to inject the softening agent.
Even when 7 is pulled out, that is, even in the state of the dotted line 81 in FIG. 2, when the washing process progresses and the dehydration operation is performed, centrifugal force is added to the injection case 27 and the center of gravity of the injection case 27 becomes A. Since the injection case 27 is in the position, the receiving case 11 is automatically stored in the receiving portion 11a of the balancer case 11 by the action of centrifugal force. The operation of the soft finisher charging device configured as described above is as follows. In washing, the user pulls out the injection case 27 from the receiving portion 11a of the balancer case 11 to the state shown by the alternate long and short dash line 80 in FIG. 2 and injects the softening agent S therein. Then, the finish agent is injected from the injection case 27 into the spout 27a and the fitting tubular portion 27.
b, through the inlet 25, into the first liquid agent holding chamber 16,
Collect in the holding chamber 16. User then fills case 2
After pressing 7 and storing it in the receiving part 11a, the operation panel 2 '
The upper start button (not shown) is turned on. Along with this, the washing operation is started. During the washing operation, the dehydration tank 9 is stationary and the soft finish agent remains in the first liquid agent holding chamber 16. This state is shown in FIG. After the washing operation is completed and the drainage is completed, when the dehydration tank 9 starts to rotate for centrifugal dehydration, the balancer case 11 and the softening agent feeding device 15 also rotate accordingly, and the softening agent in the first detergent holding chamber 16 is also rotated. Is pressed against the inclined wall surface 16a due to centrifugal force, and the wall surface rises due to the gradient. Then, the softening finishing agent reaching the communication port 21 of the side wall is the second liquid agent holding chamber 1
It flows into 7 and sticks to the wall. This state is shown in FIG. When the dehydration is completed and the rotation of the dehydration tank 9 is stopped, the soft finish agent falls to the bottom of the second liquid agent holding chamber 17 by gravity, and due to the inclination of the inclined bottom surface 17a, the third liquid agent is retained through the communication port 22. It flows into the chamber 18. During this time, the aquarium 1
The rinse operation following the water supply to No. 3 is executed, and the soft finish agent is still held in the third liquid agent holding chamber 18. This state is shown in FIG. After the rinsing operation is completed and the drainage is completed, when the dehydration tank 9 starts rotating again for centrifugal dehydration,
Just as in the above, the softening agent rises up the inclined wall surface 18a of the third liquid agent holding chamber 18 due to the centrifugal force, flows through the communication port 23 into the fourth liquid agent holding chamber 19, and sticks to the wall surface. This state is shown in FIG. When the dehydration is completed and the rotation of the dehydration tank 9 is stopped, the soft finish agent falls to the bottom of the fourth liquid agent holding chamber 19 due to gravity just as described above, and the inclined bottom surface 19a.
The final liquid agent holding chamber 20 through the communication port 24 due to the inclination of
And then immediately flows into the water tank 13 through the outlet 26. At this time, the dewatering tank 9 has started the rinsing operation following the next water supply. Since the outlet 26 communicates with the dehydration tank 9, the softening finish is put into the rinse water. Next, details of the balance adjusting device of the fully automatic washing machine of the present invention will be described . FIG. 8 is a schematic cross-sectional top view of the balancer case of the fully automatic washing machine having the balance adjustment. As shown in the figure, the balancer case 11 is opposed to the lint collection filter 10 described with reference to FIG. 1 in the first invention. An arcuate liquid enclosing chamber 28 is provided at the facing position, and an appropriate amount of liquid is enclosed in this chamber to form a balance means. or,
As shown in FIG. 9, the liquid filling chamber 28 has a liquid level line H ′ when the liquid H enclosed in the balancer case 11 moves to the maximum based on the maximum imbalance of the clothes C.
It is located closer to the center. The other parts of the second invention are exactly the same as those of FIG. 1 provided for explaining the first invention. In the above-mentioned configuration, by providing the liquid sealing portion 28 with a balance means for sealing the liquid, the member (cover frame 12) forming the circulating water channel 12 ′ of the dehydration tank 9 and the lint collection filter 10 are provided. It is possible to correct the weight imbalance due to and prevent vibration during dehydration operation. Further, according to the present invention, even if the clothes C are biased toward the lint collection filter 10 side in the dehydration tank 9 and the weight balance is lost to the maximum, the balance means is used for the balancer case 1.
The balance of the balancer case 11 itself is adjusted without changing the size of the inner circumference circle of the balancer case 11 because it is located closer to the center than the liquid level line when the liquid enclosed in 1 moves to the maximum. A structure that does not reduce the capability is possible.

According to the first aspect of the present invention, the imbalance of the weight balance of the dehydration tank due to the member forming the circulating water channel can be corrected by the balance means, and the vibration during the dehydration operation can be reduced. it can. According to the invention of claim 2,
Because the balancer means that the clothes are biased toward the circulation channel and the weight balance of the dehydration tank is maximized, and the balancer is located closer to the center than the liquid level line when the liquid in the balancer case moves to the maximum extent. Since the balance correction ability of the balancer case itself is not reduced and the size of the inner circumference circle of the balancer case is not reduced, it is possible to provide an easy vibration reduction device that does not reduce performance and usability.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view of a fully automatic washing machine equipped with a softening agent charging device according to an embodiment of the present invention.

FIG. 2 is a main part top view showing a portion of a softening agent feeding device of the above fully automatic washing machine.

3 is a cross-sectional view taken along the line XX ′ of FIG.

FIG. 4 is a cross-sectional view of relevant parts showing the relationship between an injection case and a balancer case of the same soft finishing agent charging device.

FIG. 5 is a plan view of a main part of the balancer case.

FIG. 6 is a view of the water injection case as viewed from below.

FIG. 7 is a diagram provided for explaining the operation of the same softening agent charging device.

FIG. 8 is a cross-sectional top view of a balancer case including a balance adjusting device for a fully automatic washing machine according to the present invention.

9 is a diagram that is available for explaining operations of the light the above onset.

FIG. 10 is a side sectional view showing a conventional fully automatic washing machine.

FIG. 11 is a view showing a conventional softening agent charging device.

[Explanation of symbols]

5 pulsator 9 dehydration tank 10 Lint collection filter 11 balancer case 12 Cover frame 12 'Circulation channel 15 Softening agent input device 16 First liquid agent holding chamber 16a inclined wall surface 17 Second liquid agent holding chamber 17a inclined bottom 18 Third liquid agent holding chamber 19 Fourth liquid agent holding chamber 20 Fifth liquid agent holding chamber 21-24 communication port 25 inlet 26 Outlet 27 Pour Case

Claims (2)

(57) [Claims] 1. A fully automatic washing machine in which only the pulsator rotates during the washing and rinsing steps, and the pulsator and dehydration tub rotate together during dehydration,
A balancer case in which a liquid is enclosed is provided at the upper end peripheral portion of the dehydration tank in order to correct the imbalance of weight in the dehydration tank due to uneven distribution of clothes, and the inner wall surface of the dehydration tank extends vertically. What forms a circulating water channel with both ends open and circulates water in the dehydration tank through the circulating water channel as the pulsator rotates, wherein the circulating water channel is located opposite to the circulating water channel. the balancing means for taking the weight balance of the members forming a tract provided, disproportionation is the balancing means is liquid in the balancer case of the maximum limit of the garment
Medium from the liquid level line when maximum movement based on equilibrium
Balance adjustment device for fully automatic washing machines, characterized by being located on the inner side . 2. The balance means encloses an arc-shaped liquid.
The balance device for a fully automatic washing machine according to claim 1 , wherein the balance device is a room .