JPS5916068Y2 - washing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a washing machine that circulates water in a tank up and down and captures links from the circulating water.

In this type of washing machine, a pump blade is provided on the back side of the agitation blade at the bottom of the tank, and a pumping channel is led upward along the side of the tank from near the pump blade, and the upper end of the pump is guided inside the tank at the upper part of the tank. This causes the water in the tank to be raised to the upper part of the tank and then released into the tank for circulation. On the other hand, a filter is provided at a portion through which the water discharged from the pumping channel passes, and the filter is A device designed to capture lint is available.

However, according to this method, when washing or rinsing, the laundry gets caught in the upper end of the pumping channel that protrudes into the tank as described above, resulting in poor fabric rotation and, in turn, poor washing performance. There was a problem.

Further, there are many problems in which small laundry items such as handkerchiefs are caught between the pumping channel and the inner surface of the tank, and there is also the problem that the pumping channel is pushed by the washing water flow and becomes bent.

The present invention was developed in view of the above circumstances, and its purpose is to prevent laundry from getting caught, and to prevent small laundry such as handkerchiefs from getting caught between the pumping channel and the inner surface of the tank. To provide a washing machine which can also prevent bending of a pumping channel.

Hereinafter, a first embodiment of the present invention applied to a dehydrating and washing machine will be described with reference to FIGS. 1 to 6.

First, in FIG. 1, reference numeral 1 denotes a water tank elastically suspended in an outer box 2 via a suspension mechanism 3, and a motor 4 is attached to the outer bottom of the tank. A power transmission mechanism 5 is provided.

Reference numeral 6 denotes a rotating tank serving as a washing tank and a dehydrating tank, which is rotatably arranged in the water receiving tank 1, and has a large number of dehydrating holes 7 formed in the peripheral side wall.
A balance ring 8 is disposed inside the upper end, and a recess 9 is formed in the lower surface of the balance ring 8.

Furthermore, an opening 10 for accommodating stirring blades is formed at the bottom of the rotating tank 6 as shown in FIGS. 2 and 3, and
A concave groove 11 extending in the vertical direction is formed to bulge outward in the lower part of the concave part 9 of the balance ring 8 on the side wall, and insertion grooves 11 are formed on both sides of the concave groove 11 as shown in FIG.
a, 11a are formed, and an opening 12 is formed in the lower end surface of the groove portion 11.

Furthermore, step portions 13, 13 are formed on both sides of the front surface of the upper portion of the groove portion 11 as shown in FIGS. 3 and 5, as retaining portions that are recessed outward.

Incidentally, reference numeral 14 in FIG. 2 is a filter cover provided on the balance ring 8 so as to be connected to the inner surface of the recess 9 and protrude inward.

Reference numeral 15 denotes a support plate attached to the upper end of the dehydration shaft 16 of the power transmission mechanism 5, which closes the lower surface of the opening 10 and supports the rotating tank 6. The support plate 15 has a water intake port 17. is formed.

18 is a stirring blade, which is connected to the washing shaft 1 of the power transmission mechanism 5.
The space surrounded by the back surface of the stirring blade 15, the side wall around the opening 10, and the support plate 15 is a pump chamber 20, and the pump The opening at the side of the chamber 20 (on the right in the figure) is defined as a water spout 20a.

Reference numeral 21 denotes a pump blade, which is formed on the back surface of the stirring blade 18.

Reference numeral 22 denotes a cover, which is a part 6a located at the bottom of the rotating tank 6 and between the water spout 20a and the opening 12.
The water spout 20a and the opening 12 are attached to the back side of the water outlet 20a (see FIG. 2) so as to communicate with the opening 12, thereby forming a lower water passage 23.

Reference numeral 24 denotes a main cover, which consists of a long plate having a three-dimensional cross section as shown in FIGS. is formed.

26 is a flat rectangular cylindrical discharge tube, which is attached to the main cover 24.
It is integrally molded on the upper end of the discharge tube 26 so as to be inclined slightly inwardly, and guide bodies 27 and 27 are formed on both side walls of the discharge tube 26 and extend outwardly, respectively. It is formed by integral molding.

The guide body 27.27 has an insertion protrusion 28.28 projecting from its extending end as an engaged portion.

Then, the insertion protrusions 25, 25 are inserted into the insertion grooves 11a, 11a of the recessed groove portion 11 as shown in FIG. 4, and the insertion protrusions of the guide body 27 are inserted as shown in FIG. 28.28 is press-fitted into the stepped portions 13, 13 and held in engagement by frictional force, thereby closing the concave groove portion 11 with the main cover 24 to form the main water passage 29 inside, and the guide body 27. It is positioned in the recess 9 of the balance ring 8 and held in the rotating tank 6.

Thus, the lower water passage 23. A series of waterways connected to the main waterway 29 and the discharge pipe 26 is a pumping channel 30, and the upper end 30a of the pumping channel 30
protrudes inward at the top of the rotating tank 6, and furthermore, guide bodies 27 are located on both sides of the upper end 30a, and the surfaces facing inward of the rotating tank 6 are obliquely formed on the inner surface of the rotating tank 6. It forms a continuous inclined surface 31 (see FIG. 5).

Reference numeral 32 denotes a filter, which has a structure in which, as shown in FIG. 6, a large number of small holes 34 are formed in the bottom wall of a case 33 whose top surface is open, and a large number of long holes 35 are formed in the inner side wall of the rotating tank 6. In addition, flanges 36 are provided at both ends of the upper opening of the case 33.
．． 36, respectively, and the flanges 36, 36 are grooves 37 formed in the upper portions of both sides of the recess 9 of the balance ring 8.
, 37, so that the filter 32 is inserted into the recess 9 and the water outlet 30 at the upper end of the pumping channel 30, as shown in FIG.
It is attached to the balance ring 8 so that it faces b.

Note that 38 is a water receiving plate formed, for example, by integral molding on the case 33 of the filter 32, and this serves to guide the water that has passed through the filter 32 to the inner surface of the rotating tank 6.

Next, the operation of the above configuration will be explained.

When the agitating blade 18 is rotated during each of detergent washing and rinsing operations, a swirling water flow is formed in the rotating tub 6 as shown in FIG. 2, and the laundry is agitated by riding on this water flow.

On the other hand, as the stirring blade 18 is rotated, the pump blade 21 integrated therewith is rotated, and the rotating tank 6 and the water receiving tank 1 are rotated.
Water is sucked into the pump chamber 20 through the water intake port 17, where the sucked water is energized by the pump blades 21 and discharged from the discharge water 20a, and further into the lower water passage 23.
．． The water is raised to the upper part of the rotating tank 6 through the main water passage 29 and the discharge pipe 26, that is, the pumping channel 30, and the water is discharged from the rotating tank 6 from the water outlet 30b.
Inward direction is released.

Thereafter, this water passes through a filter 32 located at a portion through which it passes, passes along a water receiving plate 38, and is returned to the rotary tank 6, whereupon lint in the water is captured by the filter 32.

As the water is returned to the rotary tank 6, a considerable amount of water passes through the dewatering hole 7 and flows out from the rotary tank 6 between the rotary tank 6 and the water receiving tank 1.

That is, the water in the rotating tank 6 is circulated by the pump blade 21 and the pumping channel 30, and lint is captured from the circulating water flow.

By the way, conventionally, when the laundry riding on the swirling water flow passes through the upper end portion 301 of the pumping channel 30, the upper end portion 30 a
protrudes into the rotating tank 6, the upper end 30
There was a concern that the laundry might get caught in the pipe a, but in this embodiment, there are
Since the guiding body 27 having the inclined surface 31 that is continuous in a diagonal manner is provided on the inner surface of the rotating tub 6, the water in the rotating tub 6 and the laundry can be smoothly guided in the flow direction along the inclined surface 31. It is possible to reliably prevent the laundry from getting caught in the upper end 30a of the pumping channel 30, and also to prevent the laundry from being caught between the pumping channel 30 and the inner surface of the rotating tub 6 by the guide body 27.

Furthermore, it is possible to reliably prevent the pumping channel 30 from being bent by being pressed by the eddy water flow.

In addition, in this embodiment in which the guide body 27 is formed integrally with the wall of the pumping channel 30, in this case the wall of the discharge tube 26, the discharge tube 26 and the guide body 27 can be formed seamlessly and without gaps.
Therefore, the surfaces thereof can be made smoother, which makes it possible to improve the fabric's circumference, and also to reduce the number of parts.

Further, an insertion protrusion 28 as an engaged portion is attached to the guide body 27.
．． 28 is provided, and a stepped portion 13.1 as a retaining portion is provided in the rotating tank 6.
In this embodiment, the guide body 27 is held in the rotary tank 6 by the engagement of the guide bodies 2 and 3.
7. In addition, the pumping channel 30 (discharge tube 26) can be attached to the rotating tank 6 more reliably, and even when hot water is used as washing water, the pumping channel 30 can be removed from the rotating tub 6 due to thermal deformation. You can more reliably prevent it from coming off.

Next, the second to fourth embodiments of the present invention will be explained only with respect to the parts that are different from the first embodiment.
In the second embodiment shown in FIG. 8 and FIG. 8, a discharge tube 39 whose substantially lower half has a U-shaped cross section and whose ends on both sides are inserted into both sides of the groove portion 11 is used as the discharge tube. This also produces the same effect as the above embodiment.

In the second embodiment of the base metal, a recess 13a is formed in the stepped portion 13, and a protrusion 28a is formed in the insertion protrusion 28, so that the discharge tube 26 can be held even more reliably. It's tight.

Further, in the third embodiment shown in FIGS. 9 and 10, a guide body 40 separate from the discharge cylinder 26 is used as a guide body, and a guide body 49 is connected to the outer surface of the discharge cylinder 26. Waterway 41
A rib 42 is provided to form a protrusion.

According to this, it is possible to prevent water flowing down from the water receiving plate 38 from scattering.

Further, in the fourth embodiment shown in FIG. 11, the mounting structure of the filter is changed, that is, the filter 43 and the water receiving plate 44 are separate bodies, and the upper end surface 44 a of the water receiving plate 44 is separated from the filter 43 and the water receiving plate 44.
With the filter 43 being held in the recess 9 by the lower surface of the filter cover 11 and the screw seat portion 44b of the water receiving plate 44,
44b is screwed to the lower surface of the balance ring 8, and the filter 43 is placed in the recess 9, and the water receiving plate 44 is inserted into the filter 43.
They are each held at the bottom.

The present invention is not limited to dehydrating and washing machines but can be widely applied to other washing machines in general, and the present invention is not limited to the above-mentioned embodiments, and may be modified as appropriate without departing from the gist. It can be implemented by

As explained above, the present invention consists of a pump blade provided on the back surface of the stirring blade at the bottom of the tank, and a pump blade that is guided upward from near the pump blade along the side of the tank, and its upper end is directed inward at the top of the tank. In a washing machine in which water is circulated in a tank by a protruding pumping channel and lint is captured by a filter provided at a portion through which water discharged from the pumping channel passes, the upper end portion of the pumping channel is The device is characterized in that guide bodies are provided on both sides of the tank, each having a sloping surface that extends obliquely to the inner surface of the tank.This makes it possible to completely eliminate laundry from getting caught in the pumping channel, and also to prevent handkerchiefs from getting caught in the pumping channel. It is possible to provide a washing machine that has excellent practical effects in that it is possible to completely eliminate the possibility of small pieces of laundry such as objects being caught between the pumping channel and the inner surface of the tank, and also to prevent the pumping channel from being bent. It is something.

[Brief explanation of the drawing]

1 to 6 show a first embodiment of the present invention.
2 is an enlarged vertical sectional view of the pumping channel portion, FIG. 3 is an exploded perspective view, and FIGS. 4 and 5 are lines IV-IV and V- in FIG. 2, respectively. FIG. 6 is an enlarged exploded perspective view of the filter portion, and FIG. 7 and FIG. 8 show a second embodiment of the present invention, and FIG. 7 is a cross-sectional view of the discharge cylinder portion. The vertical side view, FIG. 8, is a cross-sectional view taken along the line ■--■ in FIG. 9 and 10 are views corresponding to FIG. 7 and 8, respectively, showing the third embodiment of the present invention, and FIG. 11 is a view corresponding to FIG. 8, showing the fourth embodiment of the present invention. This is a diagram equivalent to Figure 6. In the figure, 6 is a rotating tank (tank), 13 is a stepped part (engaging part), 18
is a stirring blade, 21 is a pump blade, 23 is a lower water passage, 26
is a discharge tube, 27 is a guide body, 28 is an insertion protrusion (attached part), 29 is a main passageway, 30, 30a and 30b are pumping passageways, their upper ends and water outlets, 31 is an inclined surface, 32 is a filter, 39 is a discharge cylinder, 40 is a guide body, and 43 is a filter.

Claims (1)

[Scope of utility model registration request] 1. The inside of the tank is controlled by a pump blade installed on the back side of the stirring blade at the bottom of the tank, and a pumping channel that is led upward from near the pump blade along the side of the tank, and whose upper end protrudes inward at the top of the tank. In a device in which water is circulated and lint is captured by a filter provided at a portion through which water discharged from the pumping channel passes, on both sides of the upper end portion of the pumping channel,
A washing machine characterized in that a guide body having a diagonally continuous inclined surface is provided on the inner surface of the tub. 2. The washing machine according to claim 1, wherein the guide body is formed integrally with the wall of the pumping channel. 3. Utility model registration claim 1, characterized in that the guide body has a secured part and the tank has a retaining part, and the guide body is held in the tank by engagement of these parts. Or the washing machine according to paragraph 2.