JPS5844399B2 - Lint collection device for dehydrating washing machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehydrating washing machine that rotates a pulsator during washing and rotates a tank in which a pulsator is arranged at the inner bottom during dehydration. This relates to the improvement of a device for collecting lint.

Conventionally, in this dehydrating washing machine, a structure has been proposed in which the pump pressure on the back side of the pulsator is used to raise the washing water through the water channel, and the lint in the water is collected by a filter provided on the end side of the water channel.

The water passage needs to be formed along the side wall of the tank, but since this tank rotates during dehydration, if the water passage is formed to protrude from the outer wall of the tank, the water passage must be formed along the tank side wall. There is a high risk of collision.

The present invention has a structure in which the water passage does not protrude from the outer wall of the tank, which simplifies inspection and maintenance of the water passage, prevents collision between the water passage and the water tank during dewatering, and prevents water leakage. An example thereof will be described below.

In the figure, 1 is a water tank for receiving washing water, 2 is a resin tank provided inside the water tank 1, and has a pulsator 3 on the bottom and a large number of small holes 4 for draining water on the side wall.

5 is a tank reinforcing plate that reinforces the tank 2; 6 is a flange fixed to the tank 2 and the tank reinforcing plate 5; it is fixed to a shaft 7 passing through the center; during dehydration, the tank 2 is rotated by the rotation of this shaft 7; let

8 is an axis around which the pulsator 3 is rotated. 9 is a blade provided on the back side of the pulsator 3;
is housed in a recess 10 provided at the bottom of the tank 2.

A suction port 11 is provided on the bottom surface of the recess 10, and a discharge port 12 is provided on the outer peripheral wall thereof.

Reference numeral 13 denotes a resin tank cover removably fixed to the inner surface of the tank 2, the specific structure of which will be described later.

Reference numeral 14 denotes a balancer case inserted and fixed to the inner circumferential surface of the upper end of the tank 2, and contains a fluid such as water inside.

Reference numeral 15 indicates a filter through which washing water is passed. Reference numeral 16 indicates a filter frame to which the filter 15 is fixed, and is detachably fixed to the balancer case 14.

17 is a drain hose provided at the bottom of the water tank 1; 18 is an on-off valve that opens and closes the drain hose 17; 19 is a mechanical unit incorporating a clutch mechanism for switching between washing and dewatering; and 20 is a motor.

Next, the structure near the cover 13, filter 15, etc. will be explained.

In FIG. 2, reference numeral 21 denotes a pair of ribs integrally formed in the longitudinal direction from the bottom to the side wall of the tank 2, and the ribs are equally spaced apart.

Reference numeral 22 denotes a fitting part consisting of a pair of ribs integrally formed on one side of the cover 13, which fits into the rib 21 and is surrounded by the tank 2, the cover 13, the rib 21, and the fitting part 22. A water passage 23 is formed.

The guide bar 13 is provided with a protruding claw portion 24 located on the outside of the rib 22, and when the claw portion 24 is inserted and locked into the locking hole 2a formed in the tank 2, the above-mentioned The fitted state of the cover 13 is maintained.

The lower end side of the water passage 23 communicates with the discharge port 12, and the upper end side communicates with the opening of the filter 15.

Fig. 3 shows a case where a fitting part 25 made of a groove is integrally formed on the cover 13 instead of forming a fitting part 22 made of a rib. A claw portion may be formed as shown in FIG. Also good.

According to the above-mentioned takeover, the rib 21 protruding from the inner surface of the tank 2
Since the water passage 23 is formed by the cover 13 having the fitting part 22 or 25 that fits into the rib 21, the water passage 23 does not protrude to the outside of the tank as in the conventional case, and the water passage 23 does not protrude outside the tank during dewatering. Damage to the water passageway 23, generation of collision noise, and deterioration of the dewatering function due to collision with the inner surface of the water tank 1 can be prevented.

Moreover, it is sufficient to simply protrude the rib 21 on the tank 2, which requires more complicated machining using a mold compared to the conventional method of protruding a portion of the circumferential wall of the tank 2 outward over a certain width. Good workability during molding.

Further, the decrease in liquid tightness between the rib 21 and the fitting parts 22 and 25 seems to be linked to a decrease in the water discharge pressure in the recess 10, but in reality, the flow pressure in the water passage 23 is high, so
A state may occur in which water in the tank 2 is drawn into the water passage 23 from between the rib 21 and the fitting portion 22° 25.

In the above configuration, water that has entered the recess 10 from the suction port 11 due to the rotation of the pulsator 3 is discharged from the discharge port 12, and this discharged water passes through the water passage 23 to the filter 1.
5, the water after lint is removed is transferred to tank 2.
At the same time, the water enters the water tank 1 again through the hole 4, and the water is circulated again in the same order as described above.

As described above, the lint collecting device for a dehydrating washing machine of the present invention has the following features:
In particular, a water passage is formed by a pair of ribs that connect one end side to the discharge port of the recess and that protrudes inward from the side wall of the tank and a cover that has a fitting part that fits with the ribs. The other end is placed above the water surface in the tank, allowing the cross-sectional shape of the tank itself to be kept circular, and preventing local deformation and stress concentration in various parts due to unbalanced loads during dewatering. In addition, since the water channel is not formed to protrude outward, the gap between the tank outer wall and the water tank can be kept to a minimum and uniform, and the amount of water used during washing does not increase. Furthermore, it is possible to prevent the passageway from colliding with the water tank housing the tank during dehydration and damage it, preventing the occurrence of collision noise and deterioration of the dehydration function, etc. Furthermore, it is necessary to take special measures against water leakage. It has the advantage of being easy to manufacture.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a dehydrating washing machine according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of its passageway, and Fig. 3 is a cross-sectional view showing another embodiment of the cover for forming the passageway. be. 1...Aquarium, 2...Tank, 3...
...pulsator, 10... recess, 11...
...Suction port, 12...Discharge port, 13...
...Cover, 15...Filter, 21...
...Rib, 22.25...Mating part, 23...
...Waterway.

Claims (1)

[Claims] 1. A dehydrating washing machine that rotates a pulsator during washing and rotates a tank with the pulsator disposed at the inner bottom during dehydration, and a recess for storing the pulsator is provided at the bottom of the tank disposed in the water tank, and the bottom surface of the recess A cover is provided with a suction port and a discharge port on the outer circumferential wall, and has one end communicating with the discharge port, and has a pair of ribs protruding inward from the side wall of the tank and a fitting portion that fits with the ribs. A lint collection device for a dehydrating washing machine, characterized in that a water passage is formed by a water passage, and the other end of the water passage is connected to a filter provided above the water surface in a tank.