JPS6035516Y2 - Rotating tank of dehydrator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rotating tank of a dehydrator that can be used in common by dealing with differences in dewatering capacity among different models.

For example, in a two-tub washing machine, as is well known, a spin-drying basket is provided as a rotating tank for the spin-dryer, separate from the washing tub. The dewatering capacity of the dehydrating basket also differs depending on the model.

In order to deal with this difference in dewatering capacity between models, conventionally, special dewatering baskets with different diameters and depths have been manufactured for each model, but this is less productive and costs more. There was a problem with bulk.

Therefore, an object of the present invention is to provide a rotating tank for a dehydrator that can be used commonly without the need to manufacture a dedicated one for each model.

An embodiment in which the present invention is applied to a dewatering basket of a two-tub washing machine will be described below with reference to FIGS. 1 to 5.

First, in Fig. 1, 1 is an outer box of a two-tub washing machine, 2 is a dewatering tank installed in parallel with the washing tub 3 inside this outer box 1, and 4 is a rotating tank for dewatering disposed inside this dehydrating tank 2. This dewatering basket 4 is rotationally driven by a dewatering motor 5.

In addition, 6 and 7 are inner and outer lids for opening and closing the opening 8 for taking laundry in and out of the dehydration basket 4, and 9 is attached to the lower surface of the inner lid 6 so that the water inlet 9a faces the inside of the dehydration basket 4. It is a water injector.

As shown in FIG. 2, the dewatering basket 4 consists of a basket body 10, which is a rotary tank body integrally molded from plastic into a cylindrical shape with a bottom, and an inner bottom plate 11 mounted inside the basket body 10.

The basket body 10 has flattened parts 1a intermittently formed by downward bulges at multiple locations on the arc-shaped bottom, and a sintered wall with numerous water-permeable micropores in the central part. A resin-based water spray tube 12 is erected through a connecting ring body 13 so as to be attachable and detachable.

In this case, the specific configuration for removably erecting the water spray tube 12 is as shown in FIG. 3, as shown in FIG. At the same time, a plurality of protrusions 15 are integrally provided on the outer periphery of the lower end of the water spray tube 12, and while the lower end of the water spray tube 12 is fitted into the connecting ring 13, the protrusions 15 are inserted into the engagement groove 14. The purpose of this is to engage the

A compression spring 17 is provided within the connecting ring 13 to urge the water spray tube 12 upwardly via the seat 16 to prevent it from wobbling.

On the other hand, the inner bottom plate 11 has a plurality of flat parts 11a similar to the flat part 10a of the basket main body 10 formed at a plurality of locations on the outer circumferential arc-shaped part, and the water spray tube 11 in the center.
2 is formed into a circular hole 18 through which it is inserted.

In FIG. 4, 19 to 21 denote the inner bottom plate 11.
There are, for example, three types of bolts for attaching the inside of the basket body 10, and the length dimensions of these bolts are different from each other.

To install the inner bottom plate 11 into the basket body 10, first select the bolt 19 of the desired length from among the three types of bolts 19 to 21, for example the shortest bolt 19, and then select the bolt 19 at one end of the bolt 19. is inserted into the hole 22 previously formed in the flat part 10a of the basket body 10 from inside the basket body 10 and fixed with a nut 23, and then the inner bottom plate 11 is fitted into the basket body 10 and the inner bottom plate 11 is inserted into the flat part 11a in advance. The formed hole 24 is inserted into the threaded portion 19b at the other end of the bolt 19 and fixed with a nut 25.

The inner bottom plate 11 attached in this manner is raised from the bottom of the basket body 10 by an amount corresponding to the length of the bolts 19, and is substantially in contact with the upper end of the connecting ring 13, as shown in FIG.

If another bolt 20 or 21 is selected to attach the inner bottom plate 11, the inner bottom plate 11 will be attached to the position shown by the two-dot chain line A or the one-dot chain line B in FIG. By selecting a desired one from 19 to 21, the depth at which the inner bottom plate 11 is arranged can be changed to suitably change the dewatering capacity, that is, the amount of laundry stored.

Therefore, even if there is a need to change the dewatering capacity depending on the model, this can be handled with one type of basket main body 10 and inner bottom plate 11.

Now, in order to dehydrate and rinse the laundry after washing with detergent using the dehydration basket 4 configured as described above, the laundry 26 is moved from the washing tub 3 into the dehydration basket 4 around the water sprinkling tube 12 as shown in FIG. The container is moved into a space, and in this state, water is poured into the water spray barrel 12 through the water injector 9 while rotating the dewatering basket 4 intermittently, for example.

Then, the water flowing out from the water injector 9 is stored in the water spray barrel 12, and due to the water head and rotational centrifugal force, it is vigorously discharged toward the surrounding laundry 26 through the water-permeable micropores in the peripheral wall, and this water is Laundry 2 as shown by arrow C in Figure 5.
6 through centrifugal dehydration, and finally to the dehydration receiving tank 2.
released within.

In addition, in FIG. 5, 27 is a presser cover.

During such dehydration and rinsing, since the lower end portion of the water spray tube 12 is fitted into the connecting ring 13, no water is discharged from that portion.

However, the conventional dewatering basket has an inner bottom plate 1 like the one in this embodiment.
1, and the laundry is also stored around the connecting ring, making it difficult to sufficiently rinse the laundry stored in the bottom of the dewatering basket.

Regarding this point, according to this embodiment, even when the dewatering capacity of the dewatering basket 4 is maximized, the inner bottom plate 11 is
By setting the position above 3, even the laundry stored at the bottom can be sufficiently rinsed.

Note that the structure for attaching the inner bottom plate 11 so that its placement depth can be changed is not limited to that of the above embodiment; for example, a protrusion may be integrally formed on the outer circumferential side of the inner bottom plate 11, and this may be attached to the dehydration hole 10b of the basket body 10. Various other options are possible, such as a configuration in which the connector is engaged with the connector.

Furthermore, in the above embodiment, the description has been made of the application to a dehydration basket with a dehydration rinsing function, that is, a water sprinkling barrel, but as shown in FIG. It goes without saying that the inner bottom plate 28 should not have a hole in the center.

Furthermore, the present invention can also be applied to a rotating tub of a washing machine that also functions as a dehydrator.

As is clear from the above description, the present invention has a structure in which the inner bottom plate is installed inside the rotary tank body so that the placement depth can be changed, so that the dewatering capacity can be changed as appropriate by changing the installation depth of the inner bottom plate. In order to deal with the difference in dewatering capacity between models, unlike in the past, where separate rotating tanks were formed for each model, this can be handled with one type of rotating tank main body and inner bottom plate. It is possible to provide a rotating tank for a dehydrator that has extremely excellent effects such as:

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, with Figure 1 being a partially cutaway front view of a two-tub washing machine, Figure 2 being a vertical sectional view of the dewatering basket, and Figure 3 being a longitudinal sectional view of the dewatering basket. 4 is a perspective view of a bolt, FIG. 5 is a vertical cross-sectional view for explaining the dewatering and rinsing action, and FIG. 6 is a perspective view showing another embodiment of the present invention. 2 is a diagram corresponding to FIG. 2. In the figure, 4 is a dewatering basket (rotating tank), 10 is a basket main body (rotating tank main body), 11.28 is an inner bottom plate, 12 is a water spray tube, and 19 to 21 are bolts.

Claims (1)

[Scope of utility model registration request] A rotating tub of a dehydrator having a structure in which the storage volume of laundry can be changed by installing an inner bottom plate in a rotary tub body having a cylindrical shape with a bottom so that the arrangement depth can be changed.