JPS621755B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehydrating washing machine that is equipped with an outer tub around the outer periphery of the washing and dehydrating tub, rotary blades at the bottom, and a balance ring on the upper lip. The water sucked into the pump chamber between the outer tank and the dehydration tank is discharged from above the dehydration tank through a lint filter into the dehydration tank.This discharge complicates the washing water flow and improves the cleaning rate and rinsing effect. In addition, the lint filter can be used to reliably remove lint from the water.In particular, the lint filter can be installed in the dehydration tank without taking up space, and the lint filter can obstruct the loading and unloading of laundry. This is to ensure that nothing happens.

This will be explained below based on the drawings. Reference numeral 1 denotes an outer tank, and a washing and dehydrating tank 2 made of synthetic resin is housed inside. As shown in Fig. 2, this dehydration tank 2 has a substantially hexagonal column shape, consisting of an arcuate wall 2' and a flat wall 2''.An opening 3 is provided at the center of the bottom of the dehydration tank.
A rotor blade 5 attached to a rotor shaft 4 is disposed inside the rotor blade 5, and a plurality of back blades 6 are formed on the back surface of the rotor blade 5. A large number of dehydration holes 7 are provided in the side wall of the dehydration tank 2, and reinforcing vertical ribs 8 and horizontal ribs 9 are provided on the outside thereof.

Concentric ribs 10 for reinforcement are provided on the outer bottom of the dehydration tank 2.
and a radial rib 11 are integrally suspended, and a boss 12 is integrally formed on the third rib from the inside among the concentric ribs, and a boss 12 is integrally formed on the third rib from the inside among the concentric ribs.
is not completely annular, and a portion 13 thereof is open as shown in FIG. 14 is a dehydration tank board fixed to the dehydration tank drive shaft 15 with bolts 16 and nuts 17; the innermost rib 10' and boss 12 abut on this board 14, and screw 18 is tightened to this boss 12. Then, the substrate 14 and the dehydration tank 2
and are combined. and the substrate 14 and the rib 10'
A pump chamber 19 is formed. A plurality of through holes 20 are provided in the substrate 14, and water between the outer tank 1 and the dehydration tank 2 is sucked into the pump chamber 19 through the through holes 20 by the pump action of the back blade 6 when the rotor blade 5 rotates. It can be done. 21 is a bearing case, and 22 is a motor, which are attached to the bottom of the outer tank 1 suspended from a machine frame (not shown). A vertical groove 23 is formed in one plane wall 2'' of the side wall of the dehydration tank, and the lower end of the vertical groove 23 is open. It communicates with the discharge waterway 24 of.

This discharge waterway 24 is connected to the opening part 13 of the rib 10', and has a corner part 27 formed by a horizontal part 25 integrally molded with the dehydration tank 2 and a waterway cover 26 attached to the outer periphery of the outer bottom surface. Consists of. The cover 26 has a shape as shown in FIG. 3, and its upper end flange portion 28 comes into contact with the lowermost horizontal rib 9' formed on the outer wall of the dehydration tank.
As shown in the figure, both ends of the flange portion are screwed 29 to the horizontal ribs 9'. The horizontal part 25 is integrally molded on the outer bottom surface of the dehydration tank using a side core, and a raised part 30 is formed on the outer periphery of the inner bottom surface of the dehydration tank as shown in FIG. 2 in order to improve the cleaning effect. If this raised part 30 is positioned on the horizontal part 25 as shown in the figure, the side core can be easily cut out, and the water discharged from the pump chamber 19 can be smoothly sent out, which is convenient. be.

At the upper end of the dehydration tank 2, a balance ring 32 filled with a liquid 31 that acts as a balancer is attached to the screw 3.
It is attached by 3. This balance ring 32 is formed by welding the opening edges of upper and lower annular groove bodies 34 and 35. Thus, a recess 36 is formed in the inner wall of the balance ring 32, which is completely open on the lower side and basically open on the upper side. A connecting portion 37 that bridges the opposing side walls of the recess is provided in the upper part on the back side of the recess 36, that is, in the upper groove body 34, and a retaining ring 38 is formed by this connecting portion. . Reference numeral 39 denotes a discharge pipe fitted into the vertical groove 23 on the side wall of the dehydration tank, which is made by blow molding, for example, and whose lower end 40 is fitted into the vertical groove 23 on the side wall of the dehydration tank.
3, that is, the upper end of the discharge waterway 24, and the upper end 41 is inserted into the retaining ring 38. A hanging piece 44 of a cover 43 is attached to the upper surface of the balance ring with a screw 42.
The upper end 41 of the discharge pipe 39 is held down to prevent the lower end 40 of the discharge pipe from coming off from the discharge waterway 24.

The upper concave groove body 34 has water discharged upward from the upper end 41 of the discharge pipe into the cover 43.
A guide 45, which changes its direction downward in cooperation with the communication part 37, is provided so as to bridge the opposing side walls at the upper end of the front side of the recess 36, just like the communication part 37.

The discharge waterway of the pump chamber 19 includes the discharge waterway 24 and the discharge pipe 3 formed on the outer bottom surface of the dehydration tank, as described above.
9 In addition, the cover 43, the communication part 37, and the guide 45
formed by a passageway 46, 47
becomes the final outlet.

The discharge port 4 is located in front of the recess 36.
Lint filter 48 that receives water discharged from 7
is attached removably. As shown in FIG. 6, the lint filter 48 includes a conical net 49 and a synthetic resin filter frame 5 to which this net is attached.
0, and on both sides of the filter frame 50 there are elastic pieces 51 that are thinner and have elasticity than the frame body, and the elastic pieces 51 are provided with engaging portions 52 consisting of protrusions.

On the other hand, an engagement receiving part 54 consisting of a groove that elastically engages with the engagement part 52 is provided on opposite side walls 53 on the upper front side of the recess, and the filter frame 50 is pushed into the recess 36 and engaged. The filter 48 is attached by engaging the mating portion 52 and the engagement receiving portion 54. Further, a pedestal 55 for holding the filter frame 50 so that it does not fall is integrally formed on both side walls 53.

When the filter 48 is installed in the recess,
The front side of the filter frame 50 protrudes from the recess as shown in FIG. 4, and the filter 48 can be easily removed from the recess by holding this part and pulling it toward you. The pedestal 55 also protrudes from the recess 36 and serves as a guide when inserting the filter frame 50 into the recess 36.

In the structure described above, when the rotary blade 5 rotates during washing or rinsing, the pump action of the back blade 6 causes water between the outer tank 1 and the dewatering tank 2 to flow through the through hole 20 into the pump chamber as shown by the arrow in FIG. It is sucked into 19.
A part of this sucked water tries to go out into the dehydration tank through the opening 3, but the outer peripheral rib 56 of the rotor blade 5
Since only (A) has entered the pump chamber 19,
This outer circumferential rib 56 increases the pressure below the pump chamber, and the amount of water flowing out from the opening 3 into the dehydration tank is extremely reduced. Almost all of the water is sent to the discharge waterway 24, passes through the discharge pipe 39 and the passage 46, and passes through the discharge port 47 to the lint filter 4.
8 and is discharged into the dehydration tank 2.

As a result, the washing water flow becomes complicated as the water from the discharge port 47 overlaps with the water flow from the rotary blades, which promotes the upper and lower rotation of the laundry and improves the washing rate and rinsing effect. The lint filter 48 can reliably remove thread waste and the like contained in the lint.

At this time, the water coming out of the discharge port 47 flows down toward the tip of the net 49, so the lint accumulates from the tip of the net, and when cleaning the filter 48, the lint can be easily removed from the net. . Even if there is some lint that cannot be caught at the tip of the net, if you lower the tip of the net 49 by (B) below the washing water level L (at high water level) as shown in Figure 1, the washing water flow will be reduced. The laundry hit Net49,
The vibrations at this time can push the thread waste caught in the net to the tip. To clean the filter 48, remove the filter frame 50 from the recess 36 and turn the net 49 over. When installing the filter 48, since the filter frame is symmetrical, it can be inserted into the recess 36 without worrying about the direction, making it easy to use. Also, Net 49 can be used even if it is turned upside down.

By the way, during dewatering, the lint filter 48 is subjected to centrifugal force, and the filter frame 50 tends to become even more flat, that is, the lateral dimension of the filter frame 50 expands, and the engaging portion 52 is more securely attached to the engaging receiving portion 54. There is no need to worry about it coming off due to centrifugal force.

Furthermore, if the filter frame 50 is provided with a through hole 57 as shown in FIG. 7, even if the net 49 should become clogged with thread waste, the water coming out of the outlet 47 will flow through the through hole 57 into the dehydration tank. This prevents thread waste from overflowing to the upper part of the filter frame in an unsightly manner, thereby preventing lint from adhering to the fitting portion between the engagement receiving portion 54 and the engagement portion 52.

According to the present invention configured as described above, the water flowing out from the discharge port 47 during washing or rinsing can complicate the washing water flow to improve the washing rate and rinsing effect, and the lint filter can ensure that the threads in the water are Debris can be removed.

In addition, in the recess provided on the inner wall of the balance ring,
Since the upper end of the discharge waterway of the pump room is arranged and a lint filter is attached, the area of the upper opening of the dehydration tank is not narrowed by the discharge waterway or the lint filter, and there is no problem when loading and unloading laundry. .

Furthermore, the lint filter can be easily and reliably installed and removed, and various other excellent effects can be achieved. Note that by removing the cover 43 attached to the top surface of the balance ring, the discharge pipe 39 can be easily taken out, and this pipe 39 and the passage 46 can be easily removed.
It can be used for cleaning.

[Brief explanation of the drawing]

The drawings illustrate the present invention; FIG. 1 is a longitudinal sectional view of a dehydrating washing machine; FIG. 2 is a sectional view taken along the line of FIG. 1;
Figure 3 is a perspective view of the water channel cover, Figure 4 is a sectional view taken along the line in Figure 1, Figure 5 is a top view of the main parts with the cover of the balance ring removed, and Figure 6 is a perspective view of the lint filter. FIG. 7 is a perspective view of a lint filter according to another embodiment. 2...Washing/dehydration tank, 1...Outer tank, 5...Rotary blade, 3
2... Balun ring, 36... Recess, 19... Pump chamber, 47... Discharge port (discharge water top end), 48... Lint filter, 49... Net, 50... Filter frame, 52... Engaging portion, 53... Both side walls, 54... Engagement receiving part, 55... cradle.

Claims (1)

[Claims] 1. A washing and dehydration tank, an outer tank housing the dehydration tank, a rotary blade disposed at the bottom of the dehydration tank, a balance ring attached to the upper end edge, and a balance ring formed on the back side of the rotary blade, A pump chamber for sucking water between the outer tank and the dehydration tank, a recess formed on the inner wall of the balance ring, an engagement receiving part formed on both side walls of the recess, and a pump chamber arranged in the recess. a discharge waterway of the pump chamber provided therein; a lint filter that receives water discharged from the discharge port of the waterway; and a lint filter formed on both sides of a frame of the lint filter, and the lint filter is installed in the recess from inside the tank. A dehydrating washing machine comprising: an engaging portion that elastically engages with the engaging receiving portion when the dehydrating washing machine does so.