JPH08191988A - Washing machine - Google Patents

Abstract

PURPOSE: To prevent the erroneous assembly at the time of assembly, to improve an assembling characteristic, to prevent water leakage and to stabilize the appearance of a shower by fixing the upper part of the inside tank cover of a washing machine for circulating the washing liquid in an outside tank and executing washing and rinsing to the inside tank. CONSTITUTION: The inside tank 26 arranged freely rotatably with a pulsator in its central bottom part is included into the outside tank and a circulating water path is formed within the inside tank 26 by the inside tank 26 and an inside tank cover 25. The water in the outside tank is forcibly circulated and is discharged from the upper part of the inside tank 26. The inside tank cover 25 is provided in at least its upper part and lower part with projections 19, 27 which are respectively engaged with the inside tank 26. The projection 27 of the upper part is disposed near the discharge port from the circulating water path.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for rinsing and rinsing a washing liquid in an outer tub.

[0002]

2. Description of the Related Art Conventionally, a washing machine of this type has generally been constructed as shown in FIGS. The configuration will be described below.

As shown in FIG. 5, the inner tank 1 has a substantially cylindrical shape, and a pulsator 2 is rotatably arranged at the center bottom. An inner tank cover 4 that forms a circulating water channel 3 is inserted into the inner wall of the inner tank 1, and a substantially annular balancer 6 that forms a discharge port 5 together with the inner tank cover 4 is welded to the inner tank 1 at the upper portion. It is stuck due to. The pulsator 2 has a back blade 7 on the lower surface.

The outer tank 8 encloses the inner tank 1, an upper cover 9 is provided on the upper portion so as to cover the balancer 6, and the substrate 1 is provided on the outer bottom portion.
I wear 0. A motor 11, a drive mechanism unit 12, a drain valve 13 and the like are arranged on the substrate 10, and the outer edge of the substrate 10 is
The outer frame 16 is suspended from the upper corners of the outer frame 16 via a vibration isolator 14 and a suspension rod 15. The drainage port 17 is provided in the bottom portion of the outer tub 8 and communicates with the outside of the machine by a drainage hose 18 via the drainage valve 13.

As shown in FIG. 6, the inner tank cover 4 has a projection (locking portion) 19 and a claw (locking portion) at the lower and central portions, respectively.
7 are provided in the recesses 21 and 22 provided in the inner tank 1.
As shown in (a) and (b), the inner tank cover 4 is attached to the inner tank 1 by inserting them. Fitting claw 2 on the upper end of inner tank cover 4
3 is provided, and the fitting claw 23 is inserted into the recess 24 provided in the balancer 6, as shown in FIG. 7 (c).

The operation of the above structure will be described. In the washing or rinsing process, after the clothes and the detergent are put into the inner tub 1, when the operation is started, the motor 11 is automatically supplied to the predetermined water level and then the motor 11 is rotated. The pulsator 2 is rotationally driven by the rotational force of the motor 11 via the drive mechanism section 12 to stir the clothes. Here, as the pulsator 2 rotates, the back blade 7 provided on the lower surface of the pulsator 2 sucks up the washing liquid in the lower part of the outer tub 8, discharges it through the circulation water passage 3, and discharges it from the discharge port 5, and drops it again on the water surface. This promotes dissolution of the detergent while circulating the washing liquid.

On the other hand, in the dehydration process, the clutch built in the drive mechanism section 12 is switched in association with the opening / closing operation of the drain valve 13, and the inner tank 1 is rotated by the rotational force of the motor 11 via the drive mechanism section 12. To drive. Therefore, the clothes in the inner tub 1 are pressed against the inner peripheral surface of the inner tub 1 by the centrifugal force due to the rotation, and the clothes are dehydrated. The dehydrated liquid moves from the inner tank 1 to the outer tank 8 through a hole (not shown) provided in the inner tank 1 and the outer tank 8
Drain hose 1 from lower drain port 17 via drain valve 13
It passes through 8 and is discharged out of the plane.

[0008]

In the conventional structure as described above, the inner tank cover 4 has the lower projection 19 and the central claw 2.
Although it is inserted into the inner tank 1 at 0, but the upper portion is not fixed, the upper portion of the inner tank cover 4 may be deformed and fall toward the center of the inner tank 1, and when the balancer 6 is mounted. In addition, the inner tank cover 4 deformed toward the center of the inner tank 1 needs to be corrected and mounted, and there is a problem that the assemblability is poor.

As shown in FIG. 8, the upper part of the inner tank cover 4 forming the forced circulation water discharge port 5 together with the balancer 6 is moved toward the center of the inner tank 1 due to a wrong assembly when the balancer 6 is mounted. Can be deformed, in this case,
The forcedly circulated water from the discharge port 5 became as shown by an arrow, and the appearance of the shower was deteriorated, and there was a gap between the inner tank 1 and the inner tank cover 4, which sometimes caused water leakage. . In addition, if packing is added to improve tightness, it is more likely to tilt forward.

Further, the inner tank cover 4 is provided for the purpose of foreign matter mixing or repair.
When removing, the balancer 6 is welded to the inner tank 1, so that the fitting claw 23 with the balancer 6 on the upper part of the inner tank cover 4 is damaged as shown in FIG. Since the upper part of the inner tub cover 4 and the balancer 5 are not fixed to each other, the inner tub cover 4 may be deformed toward the center of the inner tub 1, as shown in FIG. 8, and the appearance of the shower may deteriorate. Had.

The present invention solves the above problems by fixing the upper part of the inner tank cover to the inner tank to prevent erroneous assembly at the time of assembly, to improve the assemblability and to prevent water leakage, and to prevent showering. The purpose is to stabilize the appearance.

[0012]

In order to achieve the above object, the present invention provides an inner tank in which a pulsator is rotatably arranged at a central bottom portion, an outer tank containing the inner tank, and an inner tank. A circulating water channel formed of an inner tank and an inner tank cover for forcibly circulating the water in the outer tank and discharging the water from the upper portion of the inner tank; and the inner tank cover is provided with locking portions at least in upper and lower portions. It is a means for solving the problems that each of the inner tanks is locked and the upper locking portion is provided in the vicinity of the discharge port from the circulating water channel.

[0013]

According to the present invention, when the inner tank cover is inserted into the inner tank by the above-mentioned means for solving the problems, the inner tank cover is provided with a locking portion for fixing not only the lower portion and the central portion but also the upper portion. The inner tank will not be deformed in the center direction, erroneous assembly can be prevented when the balancer is inserted, water leakage of the forced circulating water can be prevented, and the appearance of the shower can be stabilized. In addition, even if the inner claw cover upper part is removed and the fitting claw with the balancer is scraped when the inner tank cover is removed and then reattached due to contamination or repair, Can be prevented from being deformed toward the center.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIGS. 1 and 2, the inner tank cover 25 is provided in the inner tank 26 with a protrusion (locking portion) 19 and a claw (locking portion) 20 provided at the lower portion and the central portion, respectively. Recess 2
As in the conventional example, the first and second members can be respectively inserted and attached, and a protrusion (locking portion) 27 is provided in the vicinity of the discharge port 5 of the upper circulation water channel 3, and as shown in FIG. 26
It is designed such that it can be inserted into the concave portion 28 provided on the upper part of.

In the above structure, the inner tank cover 25 is provided with the discharge port 5 which is formed with the balancer 6 toward the inside of the inner tank 26, and the inner tank cover 25 is slid above the inner tank 26. When the inner tank 26 is lowered and inserted into a predetermined position while being carried out, the inner tank cover 25 is fixed to the inner tank 26 at three places: a lower portion, a central portion and an upper portion. Therefore, it is possible to prevent the upper portion of the inner tank cover 25 forming the discharge port 5 from falling inward (in the center direction) of the inner tank 26 and correct the deformation of the inner tank 26 toward the center. it can.

After that, by inserting the balancer 6 from above the inner tank 26, erroneous assembly can be prevented, the assemblability can be improved, and the leakage of the forced circulating water can be prevented. Further, as shown by the arrow in FIG. 4, forced circulating water can be discharged, and the appearance of the shower can be stabilized.

Further, when the inner tank cover 25 is removed by mixing foreign matter or repairing, the bottom of the inner tank 26 and the balancer 6 are fixed in the vertical direction, and therefore the fitting claw 23 fixed to the balancer 6 is damaged. However, since the protrusion 27 for locking the inner tank 26 is provided in the vicinity of the discharge port 5 as in the present embodiment, it can be locked when it is reattached. It is possible to prevent deformation, improve tightness, prevent water leakage, and stabilize the appearance of the shower.

[0019]

As described above, according to the present invention, the inner tank in which the pulsator is rotatably arranged at the center bottom, the outer tank containing the inner tank, and the inner tank and the inner tank cover are formed in the inner tank. And a circulating water channel for forcibly circulating the water in the outer tub and discharging it from the upper part of the inner tub, and the inner tub cover is provided with locking portions at least in the upper part and the lower part to be respectively locked to the inner tub. ,
Since the upper locking portion is provided in the vicinity of the discharge port from the circulating water channel, the inner tank cover is fixed to the inner tank by the locking portion, so that the deformation of the inner tank toward the center direction can be corrected and misassembly is prevented. It is possible to prevent this, improve the assemblability, prevent leakage of the forced circulation water, and stabilize the appearance of the shower.

[Brief description of drawings]

FIG. 1 is an exploded perspective view in which an inner tub of a washing machine according to an embodiment of the present invention is partially cut away.

FIG. 2 is a sectional view of the washing machine.

FIG. 3 is an enlarged cross-sectional view showing a locked state of an inner tub of the washing machine and an upper locking portion of the inner tub cover.

FIG. 4 is an enlarged sectional view of a main part of the washing machine.

FIG. 5 is a cross-sectional view of a conventional washing machine

FIG. 6 is an enlarged exploded perspective view of the washing machine with an inner tub partially cut away.

[Fig. 7] (a) An enlarged cross-sectional view showing a state where the inner tub of the washing machine and a lower locking part of the inner tub cover are locked. (B) An inner tub of the washing machine and a central locking part of the inner tub cover (C) Enlarged sectional view showing the locked state of the balancer and inner tub cover of the same washing machine

FIG. 8 is an enlarged sectional view of a main part of the washing machine.

FIG. 9 is an enlarged cross-sectional view showing a state in which the balancer fitting claw of the same washing machine is locked with the inner tub cover in a damaged state.

[Explanation of symbols]

 2 Pulsator 3 Circulating water channel 5 Discharge port 8 Outer tank 19 Projection (locking part) 25 Inner tank cover 26 Inner tank 27 Projection (locking part)

Claims (1)

[Claims] 1. An inner tank in which a pulsator is rotatably arranged at a central bottom portion, an outer tank containing the inner tank, and an inner tank and an inner tank cover formed in the inner tank to store water in the outer tank. A circulating water channel for forcibly circulating and discharging from the upper part of the inner tank is provided, and the inner tank cover is provided with locking portions at least in an upper portion and a lower portion to lock the inner tank, respectively, and to lock the upper locking portion. A washing machine installed near the discharge port from the circulation channel.