JPS6114839B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehydrating washing machine in which an outer tank is provided around the outer periphery of the washing and dehydrating tank, and a rotary blade is provided at the bottom of the washing and dehydrating tank. The water between the dehydration tank and the dehydration tank is discharged from above the dehydration tank into the dehydration tank through a discharge channel formed from the bottom of the dehydration tank to the top of the side wall, and this discharge complicates the washing water flow and improves the cleaning rate and rinsing effect. Or, this discharge water is passed through a lint filter to ensure that lint in the water is removed.
In particular, the discharge waterway of the pump chamber provided along the side wall of the dewatering tank can be easily removed to facilitate cleaning of the waterway.

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 when the rotor blade 5 rotates, 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. be caught.

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. A recess 36 is formed in the inner wall of the balance ring 32, which is completely open on the lower side and essentially 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, and is made by, for example, blow molding, and its lower end 40 is fitted into the lower end opening of the vertical groove 23, that is, the upper end of the discharge waterway 24, while the upper end 41 is inserted into the retaining ring 38. Then, the upper end 41 of the discharge pipe 39 is held down by the hanging piece 44 of the cover 43 attached to the upper surface of the balance ring by the screw 42, and the lower end 40 of the discharge pipe 39 is pressed down.
is prevented from coming out of 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 and a passage 46 constituted by the cover 43, the communication portion 37, and the guide 45, and 47 serves as the final discharge port.

A lint filter 48 for receiving water discharged from the discharge port 47 is detachably attached to the front side of the recess 36.

As shown in FIG. 6, the lint filter 48 consists of a conical net 49 and a synthetic resin filter frame 50 to which this net is attached.
There are elastic pieces 51 on both sides of which are thinner than the frame body and have elasticity, and these 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 Figure 4, and the filter 48 can be easily removed from the recess by holding this part and pulling it toward you. It is. 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 gets 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
enters the pump chamber 19 by A dimension, so
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 flow from the rotary blades overlaps with the water from the discharge port 47, which promotes the upper and lower rotation of the laundry and improves the washing efficiency and rinsing effect. Furthermore, the lint filter 48 can reliably remove lint and the like contained in the washing water. At this time, as shown in the figure, if the tip of the net 49 is submerged by the dimension B below the washing water surface L (at a high water level), the laundry will hit the net 49, and the vibrations at this time will remove the thread waste caught on the net. When cleaning the filter 48 by pushing it to the tip, the thread waste can be easily removed from the net.

Further, if the discharge waterway such as the discharge pipe 39 is clogged with thread waste or the like and the amount of water from the discharge port 47 decreases, it is necessary to clean the discharge waterway. in this case,
According to the configuration of the present invention, when the cover 43 on the top surface of the balance ring is removed, the discharge pipe 39 is lifted up, the lower end 40 is removed from the discharge waterway 24, and the upper end 41
The discharge pipe 39 can be easily removed by removing it from the retaining ring 38, and the discharge pipe 39 and the passage 46 can be easily cleaned.

In other words, serviceability improves. Further, since the discharge waterway 24 is formed on the outer bottom surface of the dehydration tank, the waterway 24 does not appear inside the dehydration tank, which is good in appearance.
Furthermore, the discharge waterway of the pump room on the side wall of the dehydration tank is
Since it is composed of a discharge pipe, lint and the like do not appear from this part and do not spoil the external design.

Furthermore, even if the discharge pipe tries to deform outward due to centrifugal force during dehydration, it will not deform because it is supported by the side wall of the dehydration tank, and there is no need to increase the strength of the discharge pipe itself, which is advantageous in manufacturing.

As described above, according to the present invention, it is possible to obtain a dehydrating washing machine that can improve the cleaning rate and the rinsing effect, has excellent serviceability, and is also excellent in terms of strength and design. Note that serviceability can be improved if the cover 43 is attached to the balance ring via an elastic engagement mechanism instead of being screwed.

[Brief explanation of the drawing]

The drawings illustrate the present invention, and FIG. 1 is a longitudinal cross-sectional view of a dehydrating washing machine, and FIG. 2 is a cross-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 balance ring with the cover removed, and Figure 6 is a perspective view of the filter. . 1...Outer tank, 2...Washing and dewatering tank, 5...Rotary blade, 19...Pump room, 24...Discharge channel, 32
... Balance ring, 38 ... Retaining ring, 39 ...
Discharge pipe, 43... Cover, 43... Cover, 23
...Vertical groove, 48...lint filter.

Claims (1)

[Scope of Claims] 1. A rotary blade is disposed at the bottom of a washing/dehydration tank built into an outer tank, and a pump chamber is formed on the back side of the rotor blade to suck water between the outer tank and the dehydration tank. , a discharge pipe is mounted on the inner wall of the dehydration tank, the lower end of which is fitted into the discharge waterway of the pump chamber formed on the outer bottom surface of the dehydration tank, and the upper end of which is inserted into a retaining ring formed as a balance ring; A dehydrating washing machine in which a cover is attached to the balance ring, which presses down the upper end of the discharge pipe and directs water discharged from the discharge pipe into the dehydration tank. 2. The dehydrating washing machine according to claim 1, wherein the water directed into the dehydrating tank by the cover is discharged into the dehydrating tank via a lint filter.