JPS5920239Y2 - Dehydration/washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to a washing machine with a dehydrating function that prevents bubbles from filling up between a water receiving tank and a rotating tank during a dehydrating operation after washing with detergent.

In a washing machine with both a dewatering function and a washing machine, if an intermediate dehydration operation is performed after detergent washing and before rinsing, the detergent liquid contained in the laundry is removed, so that the subsequent rinsing operation can be performed efficiently. In these dehydrating/spinning washing machines, the detergent liquid discharged into the water tank turns into foam, which fills the gap between the water tank and the rotating tank, reducing the rinsing efficiency, and even causing the rotating tank to become foamy. Rotational resistance is added, resulting in inconveniences such as the motor becoming overloaded.

The present invention was developed in view of the above circumstances, and its purpose is to incline part or all of the reinforcing ribs integrally protruding from the outer circumferential surface of a rotating tank made of synthetic resin, so that when the rotating tank rotates, the reinforcement ribs are tilted. To provide a washing machine for dehydration and dehydration, which is configured to generate wind flowing downward between a water receiving tank and a rotary tank, thereby smoothly performing a dewatering operation without filling the space between the two tanks. .

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 1 designates a water tank that is elastically supported within an outer box 2 via a hanging rod 3 of an elastic support mechanism; 4 is a rotating tank made of synthetic resin that is rotatably disposed within this water tank 1; A stirring blade 5 for generating a vortex water flow is disposed at the inner bottom of the tank.

Reference numeral 6 denotes a communication hole formed in a receiver 7 forming a part of the bottom of the rotating tank 4 so as to face the lower surface of the stirring blade 5. They communicate with each other, and water in the water receiving tank 1 is sucked into the rotating tank 4 through the communication hole 6 by the pumping action accompanying the rotation of the stirring blade 5, especially during washing operation.

Reference numeral 8 denotes a hollow balance ring in which liquid such as water is stored as a balance weight, and an annular flange 9 extending integrally over the entire circumference at the lower end of the outer circumferential wall is fixed to the upper end of the rotating tank 4. , the balance ring 8 is disposed at the upper end opening of the rotating tank 4.

Incidentally, the rotating tank 4 has a circumferential wall formed in a non-porous tapered shape that gradually widens upward, and a large number of grooves 10 extending in the vertical direction are formed on the inner circumferential surface, and each groove is formed at the upper end of the circumferential wall. A large number of concave portions 10 are formed, and a large number of dehydration holes 11 are formed between the balance ring 8 and the balance ring 8.

Further, on the outer peripheral surface of the rotating tank 4, a plurality of vertical ribs 12 extending in the vertical direction and a plurality of horizontal ribs 13 extending in the circumferential direction are provided.
A sharp reinforcing rib 14 is integrally provided.

Then, a part of the reinforcing rib 14, that is, a horizontal rib located at the lowest stage, is inclined between each vertical rib to form the inclined part 1.
5, and its inclination is determined to be downward in a direction opposite to the direction of arrow A, which is the rotation direction of the rotating tank 4.

On the other hand, the gap 16 between the water receiving tank 1 and the rotating tank 4 is made as narrow as possible to save water, and the height of the water receiving tank 1 is made low so that the upper end of the peripheral wall is located lower than the upper end of the peripheral wall of the rotating tank 4. I try to do that.

Further, the water receiving tank 1 has a large-diameter annular part 17 on the outer periphery of the upper part that integrally extends higher than the upper end of the peripheral wall of the rotating tank 4, and a bottomed part is formed between the annular part 17 and the upper peripheral wall of the water receiving tank 1. An annular drainage space 18 is formed.

Reference numeral 19 denotes a guide ring that extends downwardly and integrally with the outer peripheral edge of the annular collar 9 of the balance ring 8. This guide ring surrounds the upper end of the peripheral wall of the rotating tank 4 with a slight gap, and its lower end It is located above the upper end of the peripheral wall of the water receiving tank 1 and faces into the gap 16.

Such a guide ring 19 prevents the water in the rotary tank 4, which tends to overflow from the dewatering hole 11 during the washing operation, from being discharged into the drainage space 18 and returns it to the water receiving tank 1, thereby preventing a decrease in washing water. It is something to do.

Reference numeral 20 denotes a drain port formed at the bottom of the water receiving tank 1, which communicates with a drain hose 22 via a drain valve 21.

23 is an intermediate hose that communicates a water outlet 24 formed at the bottom of the annular portion 17 with the drain hose 22.

25 is a drive device disposed at the outer bottom of the water receiving tank 1; 26;
is a motor fixed to this drive device 25 via a support frame 27, and these drive device 25 and motor 26 are connected to each other via a belt transmission mechanism 28, and the rotation tank is rotated according to each operation of dewatering and washing. 4 and stirring blades 5 are selectively driven to rotate.

Next, the operation of this embodiment configured as described above will be described.

After putting laundry and detergent into the rotating tank 4, when a timer device (not shown) is set and operated, the water receiving tank 1 and the rotating tank 4 are
When water reaches a predetermined water level, the water supply is stopped and the motor 26 is energized to rotate the stirring blade 5, thereby performing a so-called detergent washing operation.

When this detergent washing operation is completed, the drain valve 21 is opened, and the water in the water receiving tank 1 and the rotating tank 4 is drained from the drain port 2o to the drain valve 2.
1 and drain hose 22 in order to be discharged to the outside of the machine.

After this, a so-called intermediate dehydration operation is performed before rinsing, and the rotating tank 4 is rotated at high speed.

At this time, the drain valve 21 is in the open state, but the water that has been dehydrated from the laundry due to the rotational centrifugal force is mainly pumped up along the groove 10 of the rotating tub 4, and is eventually discharged outward from the upper dehydration hole 11. , further guided by the guide ring 19, it pops out from the lower end of the guide ring 19 in a substantially horizontal direction, is stopped by the outer circumferential wall or annular portion 17 of the drainage space 18, flows into the drainage space 18, and flows into the water outlet 24. , the intermediate hose 23 and the drain hose 22 are directly discharged to the outside of the machine.

By the way, during the above dehydration operation, especially at the beginning,
Since a large amount of water is discharged from the rotating tank 4, some of the discharged water may fall into the water receiving tank 1 without reaching the drainage space 18 and become foam.

However, during this dehydration operation, as the rotating tank 4 rotates in the direction of arrow A, the inclined portion 15 acts as a blower blade, so that the wind flowing downward into the water receiving tank 1, that is, into the gap 16, is generated.

Therefore, even if the water that has fallen into the water tank 1 turns into bubbles as described above, the bubbles are pushed to the drain port 20 by the wind pressure, and from the drain port 20 there is a drain valve 21 and a drain hose 2.
2, they will be ejected from the aircraft.

The water that tends to fall into the water receiving tank 1 is swept away by the wind generated by the slope part 15 to the drain port 20 and is quickly forcibly removed.
It is possible to essentially prevent the generation of bubbles by cutting off the contact between the foam and water.

Now, when the above-mentioned intermediate dehydration operation is completed, a rinsing operation is performed next, and then a final dehydration operation is performed, and the washing is thus completed.

In addition, in the final dewatering operation, the water discharged from the rotating tank 4 is discharged into the drainage space 18 as in the intermediate dehydrating operation.

Also, in the final dehydration operation, it goes without saying that wind flowing downward is generated within the gap 16 by the inclined portion 15.

As described above, according to the present embodiment, during dewatering operation (when the rotary tank 4 rotates), a downwardly flowing wind is generated in the gap 16 by the inclined portion 15. Even if the discharged water from the rotating tank 4 falls into the water receiving tank 1 and turns into foam, the foam does not remain in the water receiving tank 1, but is discharged outside the machine, and once again falls into the water receiving tank 1. The water itself can also be discharged quickly, thereby essentially preventing the formation of bubbles.

Therefore, intermediate dewatering operation can be performed without filling the water receiving tank 1 with bubbles, and overload operation of the motor 26 can be prevented, and subsequent rinsing can be performed efficiently.

Moreover, instead of having a special blade, the reinforcing rib 1
Since the inclined part 15 is formed in a part of the slanted part 4 and the slanted part 15 is used to perform the air blowing function, the cost is reduced.

Further, during the dewatering operation, a downwardly flowing wind is always generated in the gap 16, so that the thread waste etc. attached to the inner circumferential surface of the water receiving tank 1 can be discharged by the wind.

In the above embodiment, water discharged from the rotating tank 4 is drained into the drainage space 1.
Since the water is discharged into the water tank 8, the amount of bubbles generated in the water receiving tank 1 can be reduced, but the drainage space 18 does not need to be provided.

FIG. 3 shows another embodiment of the invention.

Below, in Fig. 3, the same parts as in Fig. 2 are given the same reference numerals, and different parts are explained. It is formed to be inclined in the direction, and in addition to the lowermost horizontal rib, the vertical rib 12 is also made into an inclined part 29.

Even with this configuration, the same effects as in the above embodiment can be obtained.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings; for example, only the vertical ribs may be sloped, or even all of the vertical ribs and horizontal knobs may be sloped. Various changes and modifications can be made without departing from the spirit of the invention.

As explained above, the present invention enables smooth dewatering operation without filling the space between the water receiving tank and the rotating tank with bubbles, prevents the motor from being overloaded, and improves rinsing efficiency. Therefore, it is possible to provide a washing machine with both dehydration and dehydration functions that is inexpensive and can improve the performance of the washing machine.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of the present invention, with Figure 1 being a vertical sectional view showing the overall outline, Figure 2 being a side view of the rotating tank,
FIG. 3 is a diagram corresponding to FIG. 2 showing another embodiment of the present invention. In the drawing, 1 is a water receiving tank, 4 is a rotating tank, 11 is a dewatering hole, 12
13 is a vertical rib, 13 is a horizontal rib, 14 is a reinforcing rib, 15 is an inclined part, 17 is an annular part, 18 is a drainage space, 21 is a drainage valve, 2
6 is a motor, and 29 is an inclined portion.

Claims (1)

[Scope of utility model registration request] A rotating tank made of synthetic resin is installed in the water receiving tank, and a rotating tank made of synthetic resin has reinforcing ribs integrally protruding from a plurality of vertical ribs extending vertically on the outer peripheral surface and a reinforcing rib cut out from a plurality of horizontal ribs extending circumferentially. , in a washing machine for dehydration and dehydration, which rotates the rotary tub during dehydration to dehydrate the laundry after washing, the washing machine rotates with a part or all of the reinforcing ribs tilted downward in the reversal direction of the rotary tub; 1. A dehydrating and washing machine, characterized in that the inclined portion generates an air flow flowing downward into the water receiving tank when the tub rotates.