JPS6036316B2 - Dehydration/washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a dehydrating/washing machine in which water in a rotating tub is pumped up by rotational centrifugal force and discharged from an upper part.

Conventional washing machines of this type have a so-called double-tank structure, in which a rotating tank is placed in an outer tank that is swingably supported within the outer box, and others have a so-called double-tank structure, in which the rotating tank is swingably supported inside the outer box. There is a so-called single-tank structure in which the outer box is freely supported and used as an outer tank.

However, according to the former configuration, it is necessary to provide gaps between the outer box, the outer tank, and the rotary tank, which inherently increases the size of the outer box and further increases the size of the outer box. In order to avoid this, the gap between the outer tank and the rotating tank should be kept as close as possible, so if the rotating tank is rotated immediately after the washing operation is finished, a large amount of washing water will be released into the outer tank at once and overflow. Therefore, it is necessary to rotate the rotary tub to dehydrate the laundry after discharging the washing water, resulting in an inconvenience that the overall washing time becomes longer. The latter configuration has the advantage of simultaneously reducing the size of the outer box and increasing the gap between the outer box and the rotating tank. With a configuration in which a rotating tank is installed in the chamber and a support mechanism that swingably supports the rotating tank is provided in the lower chamber, both the rotating tank and the support mechanism must be separated from the partition plate by a predetermined distance. There is an inconvenience that the dehydration shaft that connects the two is long, and in order to allow the swing of this dehydration shaft that passes through the partition plate, the large diameter through hole formed in the partition plate is water-sealed with a bellows. Therefore, there was a drawback that water leakage was likely to occur during long-term use. The present invention has been made in view of the above circumstances, and its purpose is to reduce the gap between the outer box and the outer tank, thereby making the outer box smaller;
In addition, by rotating the rotary tub, the internal washing water can be discharged and the laundry can be dehydrated at the same time, reducing the time required for washing. Furthermore, the length of the dehydrating shaft can be shortened, and water leakage can be avoided. The purpose is to provide a washing machine that can perform both dehydration and dehydration, which can prevent this problem as much as possible.

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes an outer tank disposed within a rectangular outer box 2, which is integrally formed with the drain hose 3 by blow molding synthetic resin, and has a cylindrical shape with an open top and a bottom. , an annular battle layer step part [a] is bulged at the upper end part, and a small-mouthed entrance part lb is formed at the center of the bottom part.

In addition, the lower half of the peripheral wall of the outer tank 1 is formed into a tapered bellows shape whose diameter gradually decreases downward, and this is connected to the vibration absorbing section 4.
It is said that As shown in FIG. 2, the outer tank 1 is heated and softened in a mold C that is divided into left and right halves, in which a cavity A for molding the outer tank and a cavity B for molding the drain hose are formed in succession. After inserting the plastic tube D made of synthetic resin and aligning both the left and right molds, compressed air is supplied to the tube D to inflate it and mold it into a shape that matches the inner surface of the mold C. Since the outer tank 1 is a closed type as shown in FIG. 3, it is cut at the positions shown by two-dot chain lines E and F to open the top surface and form the closed part lb at the bottom.5 This is a support mechanism that consists of, for example, four hanging rods 6 (only one is shown) that are swingably suspended from the corners of the outer box 2, and an elastic force is attached to the hanging rods 6 via a compression spring 7 or the like. A clutch mechanism 9 and a motor 0 are arranged and fixed on the mounting plate 8, and the two are connected by a belt transmission mechanism 11.

Then, the outer tank 1 is inserted into the outer box 2, and the opening part lb at the bottom of the outer tank 1 is inserted into the upper end part of the clutch mechanism 9 that projects upward from the mounting plate 8, and the closed part 'b' is inserted into the outer tank 1. At the same time, the circumferential twill part is fixed to the mounting plate 8 in a watertight manner with screws 12, and the Atsushi step part la of the outer tank 1 is placed on the flange part 2a bent inside the upper end of the outer box 2, And the operation box 1 is on the top of the outer box 2.
The lectern step portion la of the outer tank 1 is pressed and fixed to the flange portion 2a of the outer box 2 by means of a lid frame 14 integral with the outer box 3. Reference numeral 15 denotes a rotating tub serving as a washing tub and a dewatering tank disposed within the outer tub 1, and is directly connected to a dewatering shaft 16 of the clutch mechanism 9, which projects upward from the upper end of the clutch mechanism 9.

The rotating tank 15 is non-porous and has a peripheral wall tapered to gradually expand upward, and when driven to rotate, the water inside is pumped up by the centrifugal force 4 and sent to the upper end. A discharge path 18 formed between the attached balance ring 17
The structure is such that it is emitted from the Reference numeral 19 denotes a flywheel disposed inside the rotating tank 15, and is directly connected to the upper end of the thickening shaft 20 of the clutch mechanism 9, which is inserted into the dewatering shaft 16.

21 is an outer box 2 for leading out the drain hose 3 to the outside.
22 is the laundry inlet/outlet 14 of the lid frame 14.
The opening/closing lid 23 for opening and closing a is a timer device disposed in the operation box 13 to automatically advance the washing operation consisting of detergent washing, dehydration, rinsing, and dehydration in sequence.

Next, the operation of the above configuration will be explained. When laundry is put into the rotating tub 15 together with detergent and the timer device 230 is set, water is first supplied to the rotating tub 15, and when the water reaches a predetermined water level, the water supply is stopped and the fly azusa wing 20 is rotated. As described above, the detergent washing operation is performed. Immediately after this detergent washing operation is completed, the dehydration operation starts, and the rotating tank 15
is driven to rotate. As a result, the water in the rotating tank 15 is pumped up along the inner surface of the rotating tank 15 due to the centrifugal force of rotation, and is discharged from the discharge path 18 into the outer tank 1, and eventually is discharged to the outside of the machine via the drain hose 3. be done. And rotating tank 15
When most of the water inside the machine is drained, the laundry is dehydrated, and the water is discharged outside the machine in the same way as above. When such a dehydration operation is completed, water is then supplied to the rotary tank 15 and the kasuzu blade 20 is rotated to perform a rinsing operation, and after this, the dehydration operation of the same machine as described above is performed, With the above steps, the washing operation is completed. By the way, during a washing operation, especially during a dehydration operation, due to unbalanced loads caused by uneven distribution of laundry, the rotating tub 15 and the mounting plate 8 constitute one vibration system and are integrated in the horizontal and vertical directions. vibrates. Therefore, the lower end portion of the outer tank 1 fixed to the mounting plate 8 also vibrates, but this vibration is absorbed by the bellows-shaped portion of the outer tank 1 that constitutes the vibration and absorption section 4, and the upper part of the outer tank 1 In other words, it will not be transmitted to the parts fixed to the outer box 2. According to this embodiment, the vibrations transmitted from the mounting plate 8 to the bottom of the outer tank 1 are absorbed by the vibration absorber 4 and are not transmitted upwards. The gap between the outer box 2 and the outer box 2 may be very small or may not be provided at all, and the outer box 2 can be made into a 4-shaped tank even though it has a so-called double tank structure.

Furthermore, even if the outer box 2 is made smaller, it is possible to secure a larger gap between the outer tank 1 and the rotating tank 15 than with the conventional double tank structure, so the rotating tank 15 can be immediately removed after the washing operation. can be rotated to drain the water inside it, reducing the additional time required for the entire washing operation. Furthermore, according to this embodiment, a portion corresponding to the bellows of the conventional so-called single tank structure, that is, the vibration absorbing section 4, is formed integrally with the outer tank 1, thereby eliminating the need for a separate bellows. In addition, since the connection part with the mounting plate 8 at the bottom of the outer tank 1 does not move relative to the mounting plate 8, it has excellent water retention properties and can prevent water leakage as much as possible during long-term use.

Moreover, since the bottom of the outer tank 1 can be directly attached to the mounting plate 8, the length of the dewatering shaft 16 can be shortened, the amount of materials used can be reduced, and a strong product can be obtained.
Further, as in this embodiment, if the drain hose 3 is formed integrally with the outer tank 1 at the same time as molding, the labor of assembly can be saved, and if the structure is such that the drain hose 3 is formed separately and connected. As shown in the figure, there is no dust caused by water leakage at the connecting part.

Note that the vibration absorbing part 4 is not only formed at the lower part of the peripheral wall of the outer tank 1 as in the above embodiment, but also shown in FIG. 4 or FIG. 5 (in both cases, the same functional parts as in FIG. It may be formed around the part of the bottom of the outer tank 1 that is fixed to the mounting plate 8, or it may be formed in the corner of the bottom of the outer tank 1, as shown in the accompanying figure. It is sufficient that it exists between the fixed part and the fixed part to the support plate 8.

In addition, the present invention is not limited to the embodiments entrusted and shown in the drawings, and can be implemented with various changes without departing from the gist thereof.

As explained above, the present invention can reduce the gap between the outer box and the outer tank, and can downsize the outer box even though it has a so-called double tank structure. Even if the outer box is made smaller, the gap between the outer tub and the rotating tub can be set large, so that the rotating tub can be rotated immediately after the washing operation to drain the water inside and dehydrate the laundry. It can also be used for dehydration, reducing the time required for washing, reducing the amount of material used and improving strength by shortening the dehydration shaft, and preventing water leakage as much as possible. A washing machine can be provided.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention, Figure 1 is a longitudinal cross-sectional view of the entire main part, and Figure 2 is a side-to-side view of the mold to explain the procedure for molding the outer tank. FIG. 3 is a vertical cross-sectional view of the outer tank immediately after completion of molding, and FIGS. 4 and 5 are cross-sectional views of main parts showing other different embodiments of the present invention. . In the drawing, 1 is an outer tank, 2 is an outer box, 3 is a drain hose, 4 is a vibration absorber, 5 is a support mechanism, 6 is a hanging rod, 8 is a mounting plate, 1
4 is a lid frame, 15 is a rotating tank, and 16 is a dehydration shaft. Figure 2 Figure 3 Figure 1 Figure 4 Figure 5

Claims (1)

[Scope of Claims] 1. An outer box, which is integrally formed by blow molding of synthetic resin, has an upper part fixed to the outer box, and a lower part supported by a swingable support mechanism, and has a part fixed to the outer box and a part fixed to the outer box. an outer tank having a vibration absorbing section between it and a part supported by the support mechanism;
A rotary tank is rotatably disposed within the outer tank and rotates to pump up the water inside by rotational centrifugal force and discharge it from the upper part into the outer tank, and a drainage tank that discharges the water in the outer tank. A dehydrating and washing machine equipped with a hose. 2. Claim 1, characterized in that the drain hose is formed integrally with the outer tank by simultaneous molding with the outer tank.
A dehydrating and washing machine as described in section.