JPS6231118Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a lint collection device for a washing machine that collects lint generated during washing, rinsing, etc. and prevents the lint from adhering to clothing. Therefore, it is an object of the present invention to eliminate water leakage from the discharge water rising passage that guides the circulating water flow to the filter, and to improve the collection performance of lint.

FIG. 1 shows a washing machine with the basic structure of a lint collecting device, in which 1 is a main body, 2 and 3 are a washing tub and a dehydration receiving tank installed in the main body 1, and 4 is a dehydration tank, which is driven by a dehydration motor 5. Ru. Reference numeral 6 denotes a rotor blade rotatably disposed in a recess 7 for accommodating a rotor provided on the bottom surface of the washing tub 2, and has blades 6a on the back surface. This rotary blade 6 is connected to a pulley 9 by a washing motor 8.
10 and a belt 11 to rotate. 1
2 is a drain filter having a large number of holes, and water in the washing tub 2 is drained through a drain port 13, a drain pipe 14, a drain pot 15, and a drain hose 16.

Reference numeral 17 denotes a groove that communicates the drain port 13 with the recess 7 for accommodating the rotary blade of the washing tub 2, and is covered with a water absorption cover 18 to form a water absorption passage. Reference numeral 19 denotes a vertically long recess provided at a corner of the washing tub 2, and is covered with a discharge cover 20 to form a discharge water rising passage 21. The recess 19 provided at the corner portion communicates with the recess 7 via a groove 22, and this groove 22 is covered with a cover 23 to form a discharge passage 24.

A discharge port 23 is provided at the top of the discharge water rising passage 21, and a discharge port cover 26 fixed to the top of the washing tub 2 is provided in front of the discharge port 25. A filter holder 28 that holds a filter 27 for collecting lint is attached to this discharge port cover 26.
is attached removably.

FIG. 2 shows a horizontal cross-sectional structure of the discharge water rising passage 21 portion.

In the above configuration, the rotary blade 6 is connected to the washing motor 8.
When the rotary blades 6 are rotated, a pump action occurs due to the rotation of the plurality of blades 6a provided at the lower part of the rotary blade 6, and the water in the washing tub 2 flows through the water absorption passage consisting of the drain filter 12, the drain port 13, and the groove 17. Through the recess 7
The water is further discharged from the discharge port 25 into the washing tub 2 through the discharge passage 24 and the discharge water rising passage 21 . Here, the lint generated during rinsing is collected by a filter 27 provided in front of the discharge port 25 to prevent it from re-adhering to the clothes being washed.

The reason why the discharge water rising passage 21 is provided at the corner of the washing tub 2 is because there is a space in the corner.If it is provided at another flat surface, the overall external size of the washing machine becomes large and it is not effective in terms of space. This is mainly due to this.

Conventionally, as shown in FIG. 3, the discharge water rising passage 21 has been provided with a recess 19 at the corner of the washing tub 2 and a protrusion 29 at the open end of the recess 19. cover 20
It can be seen that the legs 30 of the two are fitted. In this case, as shown in FIG. 4, the fitting structure is such that the width L ₁ of the upper part and the width L ₂ of the lower part of the recess and the discharge cover 20 are set such that L ₁ >L ₂ so that when they are inserted from above, they are mutually connected. However, as mentioned above, since the concave portion 19 is located at the corner of the washing tub 2, the stress applied to the washing tub 2 tends to concentrate, and especially when thermal stress is applied, the washing tub 2 becomes synthetic. Since it is molded with resin, it deforms, and a gap 31 is created between the end surface 29a of the protrusion 29 of the recess 19 and the leg 30 of the discharge cover 20. In such a situation,
Since the discharged water comes out from this gap 31 and the amount of discharged water decreases, the lint collection performance deteriorates.

As a countermeasure against this, as shown in FIG.
2, or attach a discharge cover 20 to the recess 19 of the washing tub 2 as shown in FIG.
There was one in which a pipe 33 was provided inside and a discharge water rising passage 21 was provided.

The structure using the former pipe 32 is
The molding process itself becomes expensive, and in the latter case, the connection part of the pipe 33 with other parts becomes complicated, and
The discharge cover 20 does not function as a discharge water rising passage and is wasted, and due to the use of the pipe 33, the cross-sectional opening area of the actual passage is reduced to the recess 19.
Since the area of the cross-sectional opening is smaller than the area of the cross-sectional opening, the amount of water discharged is reduced.

The present invention solves the above-mentioned conventional problems, and an embodiment thereof will be described below with reference to FIGS. 7 and 8. In both figures, a vertically elongated recess 19 is provided at one corner of the inner wall of the washing tub 2, an outward protrusion 34 is provided on both sides of the recess 19, and a gap between the discharge cover 20 and the recess 19 is provided. , a discharge inner wall portion 35 is provided, and the discharge water rising passage 21 is formed by the discharge cover 20 and the discharge inner wall portion 35.

In FIG. 7, the discharge cover 20 is fitted into the washing tub 2 and fixed by the protrusion 29 formed at the open end of the recess 19 and the legs 30 provided on the discharge cover 20. This configuration is the same as that shown in FIG. Then, the discharge inner wall part 3
5 is fitted with the discharge cover 20, and when the discharge cover 20 and the discharge inner wall 35 are inserted into the recess 19 from above the washing tub 2, these components will have an upward draft angle. , the discharge inner wall portion 35 is pushed by the recess 19 and its end portion 36 comes into close contact with the discharge cover 20. The fitting rib 20b provided on the discharge cover 20 is a protrusion 34.
Fitted inward.

In FIG. 8, the fitting ribs 20a and 35a provided on the discharge cover 20 or the discharge inner wall 35 are fitted into the discharge inner wall 35 or the discharge cover 20, and the protrusions on both sides of the recess 19 are shown. The rib 20b of the discharge cover 20 provided in the same direction as the portion 34 and the rib 35b of the discharge inner wall portion 35 fit inside the protrusion 34, so that the fitting rib 20
a or 35a are tightly fitted.

According to the above configuration, when the washing tub 2 is deformed, the effect on the recess 19 is that although the deformation is large in the circumferential direction, the amount of deformation is small in the radial direction.
A gap is unlikely to occur between the discharge cover 20 and the discharge inner wall portion 35.

As described above, according to the present invention, it is possible to prevent the occurrence of a gap in the middle of the discharge water rising passage, and since there is no water leakage from this passage, the discharge amount does not decrease and the lint collection performance is extended. It can be maintained stably over a period of time.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a washing machine equipped with a lint collection structure, Fig. 2 is a horizontal sectional view of the same main part, Fig. 3 is a horizontal sectional view of a conventional discharge water rising passage, and Fig. 4 is the same side view. Figures 5 and 6 are horizontal cross-sectional views showing conventional discharge water rising passages, and Figures 7 and 8 are
The figure is a horizontal sectional view of a discharge water rising passage in an embodiment of the present invention. 1...Main body, 2...Washing tub, 4...Dehydration tub, 6
...rotor blade, 7 ... recess, 13 ... drain port, 17
... Groove, 19 ... Recess, 20 ... Discharge cover,
34...Protrusion part, 35...Inner wall part for discharge.

Claims (1)

[Scope of utility model registration request] A washing tub and a dewatering tub are provided inside the main body, a drain port and a recess for accommodating the rotor blade are provided at the bottom of the washing tub, and the drain port and the recess for accommodating the rotor blade are connected through a water absorption passage. , a vertically elongated recess is provided in a corner of the washing tub, this recess and the recess for accommodating the rotary blade are connected via a discharge passage, and a discharge cover is provided to cover the recess in the corner; A filter is provided at the discharge port on the upper side of the recess, outward protrusions are provided on both sides of the recess at the corner, and an inner wall for discharge is provided between the discharge cover and the recess at the corner. In addition, the discharge cover and the discharge inner wall part are fitted together to form a discharge water rising passage, and the fitting part of the discharge cover and the discharge inner wall part is fitted inside the protrusion part of the washing machine. Lint collector.