JPS6324878Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention provides a tank with a pumping channel and a filter at the discharge port of the pumping channel so that water is discharged from the discharge port of the pumping channel. The present invention relates to a lint capture device for a washing machine that captures lint from water.

(Prior art) Conventionally, the lint capture device of a washing machine has a pump blade on the back side of an agitator such as a pulsator installed at the inner bottom of the rotating tank, and a balance ring at the top of the rotating tank is connected from near the pump blade. A pumping channel is provided near the inner surface, and during washing and rinsing, the water in the rotating tank is guided upward through the pumping channel by the pump action of the pump blades based on the rotation of the agitator, and is discharged back into the tank from the discharge port. A filter made of a bag-like net and having a mounting body at its mouth is attached to the balance ring of the rotating tank so as to face the discharge port of the pumping channel, and the filter is made of a bag-like net and has a mounting body at its mouth. A structure is provided in which the water discharged from the discharge port is passed through the filter, and the lint is captured by the filter.

(Problem that the invention aims to solve) By the way, it is known that in washing machines, when the agitator is reversed during washing, the water flow in the tank changes in a complicated manner, causing large undulations. However, in the above-mentioned conventional lint capturing device, the filter mounting body is shaped like a rectangular box and protrudes from the inner surface of the balance ring, so when the water flow becomes undulated as described above, the washing water flows onto the side surface of the mounting body. Water splashes as the water hits the washing machine, and the water adheres to the top cover of the washing machine and the back of the opening/closing lid, and then drips onto the inside of the outer box of the washing machine, wetting that area and wetting the floor below the outer box. Or, if there is a lot of laundry, the laundry may hit the storage unit and cause the so-called cloth circulation to deteriorate.
There were problems such as reduced cleaning effectiveness. In addition, there are some models in which the mounting body is fitted into a notch formed on the inner surface of the balance ring so that the mounting body is flush with the inner surface of the balance ring (arc-shaped surface), but this one In this case, a part of the balance ring becomes narrow due to the notch, and the balancer effect of the balance ring itself is reduced.

Therefore, the purpose of the present invention is to eliminate the reduction in the balancer effect of the balance ring by attaching the mounting body for making the filter facing the discharge port of the pumping channel in a protruding state on the inner surface of the balance ring. To provide a lint trapping device for a washing machine which can prevent water splashing and also eliminate the drop around cloth.

[Configuration of the device] (Means for solving the problem) The device comprises a rotating tub having a balance ring at its upper end and an agitator on its inner bottom, a pumping passage which uses a pumping action due to the rotation of the agitator to guide water in the rotating tub upward and discharge it from near the inner surface of the balance ring back into the rotating tub, a bag-shaped filter, and a mounting body which is attached in a protruding state to the inner surface of the balance ring so that the filter faces the discharge port of the pumping passage, and is characterized in that the front wall of the mounting body is flat and continuous with the inner surface of the balance ring in the circumferential direction.

(Operation) When the stirring body is rotated, water in the rotating tank is guided upward through the pumping channel, and is discharged from the discharge port of the pumping channel, passes through the filter, and returns to the rotating tank. At this time, the lint in the water is captured by the filter. In addition, in this case, although the mounting body protrudes, its front wall is continuous with the inner surface of the balance ring in the circumferential direction without any steps, so the water flow in the rotating tank causes large undulations. Even when the water flow passes through the mounting body without hitting it, no splashing occurs. Furthermore, since this mounting body is provided so as to protrude from the inner surface of the balance ring, unlike the case where the mounting body is fitted into the balance ring, there is no need to make the balance ring narrow. Therefore, the balancer effect does not deteriorate.

(Example) Below, Figures 1 to 6 are related to the first embodiment of the present invention.
This will be explained with reference to the figures. First, in Figure 1, 1
is an outer box, in which a water tank 3 is elastically suspended via an elastic suspension mechanism 2, and a motor 4, a mechanism section 5, a belt transmission mechanism 6, etc. are installed at the outer bottom of this water tank 3. It is arranged. Further, inside the water receiving tank 3, a rotating tank 8 serving as a washing tub and a dehydrating tank having a balance ring 7 at the upper end is arranged, and an agitator, for example, an agitator 9 is arranged at the bottom of the rotating tank 8. ing. The rotating tank 8 is a rotating shaft 10 of the mechanism section 5.
The agitator 9 is also connected to a stirring shaft (not shown) in the mechanism section 5 via a deceleration mechanism 11 disposed at the inner bottom of the rotating tank 8 . Pump vanes 12 are formed on the back surface of the agitator 9, and pumped water is provided on the inner wall of the rotating tank 8, extending from the inner bottom of the rotating tank 8 to the balance ring 7 at the upper end of the rotating tank 8. As shown in FIG. 2, the pumping channel 13 is composed of a groove 14 formed on the inner wall of the rotating tank 8 and a cover 15 attached to the groove. The lower end opening faces a concave portion 8a at the inner bottom of the rotating tank 8, which serves as the suction port 16. Furthermore, as shown in FIG. 3, the upper end of the cover 15 in the pumping channel 13 extends from the lower surface of the balance ring 7 to the inner circumferential surface, and a discharge port 17 is provided at the leading end. Further, around the discharge port 17 in the balance ring 7, as shown in FIGS. 3 to 6, a hook part 18 is formed at the upper part, and a hook part 18 is formed at the lower left and right parts. Part 1
9, 19 are formed, and this receiving part 19, 1
Fitting protrusions 20, 20 are formed on each of the fitting protrusions 9. On the other hand, 21 is a filter made of a bag-like net, and a mounting body 22 is provided at the mouth of the filter. As shown in FIG. 5, this mounting body 22 includes a front wall 22a, an upper wall 22b extending rearward from the lower edge thereof,
It has a lower wall 22c, and a front wall 22c.
a is formed into a planar shape, and the lower wall 22c
Both side portions of the mounting body 22 are formed to be inclined upwardly toward the side ends thereof, and both side portions of the lower surface of the mounting body 22 are formed in an oblique shape that is inclined upwardly toward the side ends thereof. The rear ends of the lower wall 22c are each formed into an arc shape that is substantially the same as the inner surface of the balance ring 7 of the rotating tank 8. An opening 2 is provided in the center of the front wall 22a of this mounting body 22.
3 is formed, and a frame-shaped fitting groove 24 that opens inward is formed at the periphery of the opening 23, and a claw portion 25 is formed at the rear of the upper wall 22b. A protrusion 26 for a handhold on the front end of the top surface
are formed, and fitting holes 27, 27 are further formed in the lower wall 22c. On the other hand, in FIGS. 3 and 4, reference numeral 28 denotes a presser frame, and by fitting this into the fitting groove 24 of the mounting body 22 together with the mouth of the filter 21, the mounting body 22 is attached to the mouth of the filter 21. It is set up. Such a mounting body 22
The fitting holes 27, 27 are connected to the balance ring 7.
By fitting into the fitting protrusions 20, 20 of the receiving parts 19, 19 and engaging the claw part 26 with the hook part 18, the balance ring 7 is positioned and attached to the inner surface of the balance ring 7 around the discharge port 17. With this installation, the filter 21 is attached to the balance ring 7.
It faces the discharge port 17 and is detachably provided. Therefore, in the mounted state of the mounting body 22, the fourth
As shown in the figure, although the mounting body 22 protrudes from the inner surface of the balance ring 7, its front wall 2
2a is continuous with the inner surface of the balance ring 7 in the circumferential direction without any difference in level.

Now, the operation of the above configuration will be explained. Now, considering the washing and rinsing times in which the agitator 9 is rotated forward and backward at a predetermined cycle, in this case, the rotation of the agitator 9 causes the laundry in the rotating tub 8 to flow together with the washing water and be washed. The washing water below the agitator 9 is heated by the pumping action of the pump blade 12 that rotates integrally with the agitator 9, and is pumped into the pumping channel 13.
The washing water is forced into the interior from the suction port 14, is guided upward through the pumping channel 13, is discharged from the discharge port 17 into the rotating tub 8, and is returned to the rotating tub 8 through the filter 21. It will be done. This folding filter 21
This traps lint in the washing water.

Here, when the agitator 9 is reversed,
When the washing water flow has an undulation and passes through the mounting body 22, the front wall 22a of the mounting body 22 has a planar shape that is continuous with the inner surface of the balance ring 7 without any difference in level, so that the washing water flow passes through the mounting body 22. The laundry passes through without hitting the side edges of the attachment body 22, so there is no water splashing at the side edges, and the flow of the laundry is not obstructed by the side edges of the attachment body 22. The surroundings don't get worse. Moreover, since the mounting body 22 does not fit into the balance ring 7 but protrudes from the balance ring 7, the attachment body 22 does not fit into the balance ring 7.
There is no need to form a notch or the like for fitting the mounting body into the mounting body, and as a result, the balance ring 7 does not become partially narrow in width, and the balancer effect of the balance ring 7 does not deteriorate.

In particular, in the case of this embodiment in which both sides of the lower surface of the mounting body 22 are configured to form an oblique shape that slopes upward toward the side ends, the laundry is returned downward, which improves the fabric circulation. In addition to being able to tighten the washing water, it also directs the washing water flow downward and has the effect of suppressing undulation.
Of course, there is no water splashing.

Next, FIGS. 7 and 8 show a second embodiment of the present invention, in which rectangular water holes are formed in the left and right parts of the front wall 22a of the mounting body 22, respectively. 29 and a plurality of round water holes 30, and both water holes 2 are formed on the back surface of the front wall 22a.
This embodiment differs from the first embodiment in that a comb-like protrusion 31 is formed between 9 and 30, and a plurality of notches 32 are formed at the peripheral edge of the opening 23. In this second embodiment, in addition to producing the same effects as in the first embodiment, lint can also be captured by the projections 31 from the washing water in the rotating tub 8, and especially in the rotating tub 8.
When rinsing is performed while pouring water into the water hole 29, lint near the water surface can be captured well.
Since a part of the washing water flow flows into the front wall 2
The water flow can be weakened at the part 2a, and a further effect can be obtained in preventing water splashing.

[Effect of the invention] As is clear from the above description, the present invention includes a rotating tank having a balance ring at the upper end and a stirring body at the inner bottom, and a rotating tank that receives a pump action based on the rotation of the stirring body. a pumping channel for guiding water in the tank upward and discharging it back into the rotating tank from near the inner surface of the balance ring; a bag-shaped filter; and a filter attached to the inner surface of the balance ring in a protruding state. and a mounting body that allows the filter to face the discharge port of the pumping channel, and the front wall of the mounting body is flat and continuous with the inner surface of the balance ring in the circumferential direction thereof. This feature not only eliminates the deterioration of the balance ring's balancer effect, but also reliably prevents water from splashing, thereby preventing water droplets from adhering to the outer box of the washing machine and the floor surface. Wetting can be reliably prevented, and it can also be prevented from interfering with the fabric of the laundry, and the deterioration of the cleaning effect can be prevented.
It has excellent effects.

[Brief explanation of drawings]

1 to 6 show a first embodiment of the present invention, FIG. 1 is a vertical side view of the washing machine, and FIG. 2 is a first embodiment of the washing machine.
Figure 3 is an enlarged longitudinal cross-sectional view along the - line in the figure, Figure 4 is an enlarged longitudinal cross-sectional side view of the main part, Figure 4 is a cross-sectional plan view of the same, Figure 5
6 is a front view of the same, FIG. 6 is a perspective view of the mounting body separated from the balance ring, FIGS. 7 and 8 show a second embodiment of the present invention, and FIG. FIG. 8 is a cutaway perspective view of the mounting body separated from the balance ring. In the figure, 7 is a balance ring, 8 is a rotating tank, 9 is an agitator (stirring body), 12 is a pump blade, 13
is a pumping channel, 17 is a discharge port, 21 is a filter, 22
is the mounting body, 22a is the front wall, 28 is the presser frame, 29
30 is a water hole, and 31 is a protrusion.

Claims (1)

[Scope of utility model registration request] a pumping passage which receives a pumping action due to the rotation of the agitator and directs water upward from within the rotating tub and discharges it from the vicinity of the inner surface of the balance ring so that the water is returned to the rotating tub; a bag-shaped filter; and a mounting body which is attached in a protruding state to the inner surface of the balance ring and which allows the filter to face the discharge port of the pumping passage, the front wall of which is a flat surface which continues without any steps in the circumferential direction relative to the inner surface of the balance ring.