JPS6028394Y2 - dehydrator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dehydrator, and more particularly to a centrifugal dehydrator equipped with a rinsing device.

A number of proposals have already been made for saving ice in rinses.

For example, there is a rinsing-drying method in which the laundry is transferred from the washing tub to the spin-drying tub at the end of the washing process, and rinsing water is poured from the top of the spin-drying tub while rotating to rinse the laundry and then spin it out.

However, with this method, the rinsing water does not easily penetrate into the laundry stuffed in the spinner tank below.
A sufficient rinsing effect cannot be obtained.

On the other hand, a porous rinsing water supply pipe is provided in the center of the dehydration tank, and this is rotated at high speed together with the dehydration tank, and the centrifugal force is used to cause the rinsing water to flow through the laundry. A rinsing-dehydration method in which rinsing is performed is also known.

According to this method, a better rinsing effect can be obtained compared to the former method, but since the water supply pipe is located in the center of the dehydration tank,
This gets in the way when loading and unloading laundry, making it inconvenient to use.

In addition, in connection with this, when the laundry is packed, unevenness tends to occur, and it may not be possible to start the dehydrator smoothly.

Therefore, an object of the present invention is to provide a dehydrator with a rinsing device that can perform sufficient rinsing with a smaller amount of water and is easy to handle.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, this dehydrator includes an outer shell 1, in which a dewatering tank 2 and an electric motor 3 are provided in a known manner.

The drive shaft 4 of the electric motor 3 extends into the dehydration tank 2 via a rubber seal member 6, and rotatably supports the dehydration tank 5 at its end.

On the other hand, on the back side of the opening/closing lid 7 at the top of the outer body 1, a water guide device 9 is installed which has a water supply hole 8 that opens toward the approximate center of the dehydration tank 5. Rinse water from a piped water supply vibrator 11 is supplied into the dehydration tank 5 through a lid, which will be described later.

Referring to FIG. 2, the dehydration tank 5 has a bottomed cylindrical outer tank 1.
2, and an inner tank 13, which is also cylindrical and has a bottom, and which is disposed inside the outer tank 12. In this case, the bottoms of each of the outer tank 12 and the inner tank 13 have a predetermined gap between them. It is supported by a coupling 14 arranged so that a water introduction chamber 15 is formed, and is connected to the drive shaft 4 via this coupling 14.

As shown in FIG. 3, the peripheral wall of the outer tank 12 has a corrugated cross-sectional shape with alternating concave walls 17 and convex walls 18, while the peripheral wall of the inner tank 13 has concave walls. It is inscribed in the wall 17 and has a perfect circular cross section.

Therefore, by inserting the inner tank 13 into the outer tank 12, the inner tank 13 is positioned concentrically by the concave wall 17, and a plurality of water channels are formed between the inner tank 13 and the convex wall 18, which communicate with the water guide chamber 15. 16 is formed.

Note that by interposing a spacer between the circumferential wall of the outer tank 12 and the circumferential wall of the inner tank 13, the water conduit 16
can also be formed.

Further, in the soil part of the peripheral wall of the inner tank 13, there is a hole 30 for circulating tin water that opens toward the water conduit 16, and a concave wall 17 of the outer tank 12.
A drainage hole 31 is provided which passes through the tank and opens to the outside of the tank.

A cover 2 having a large number of through holes 19 is provided at the bottom of the inner tank 13.
0 is attached, and a pump chamber 21 is formed by this cover 20.

An impeller 22 is disposed within this pump chamber 21 .

Note that the pump chamber 21 communicates with the water introduction chamber 15 through a hole 23 formed through the bottom wall of the inner tank 13 and the coupling 14 .

The impeller 22 is mounted on a bearing metal 2 within the drive shaft 4.
It is designed to be rotationally driven by an electric motor 3 via a rotating shaft 25 supported by a rotary shaft 25 .

In this case, the rotating shaft 25 of the impeller 22 is connected via a connecting pin 32 to a clutch body 28 that is integrally fixed around the motor shaft 26, but on the other hand, the rotating shaft 25 of the impeller 22 supports the dewatering tank 5. The drive shaft 4 includes a one-way rotation clutch,
For example, the clutch body 28 can be
It is designed to be selectively connected to.

That is, as shown in FIG. 6, the spring clutch 27 consists of a coil spring wound with a diameter slightly larger than that of the drive shaft 4 and the clutch body 28, and this coil spring is wound around the outer peripheral surface of the drive shaft 4. It is mounted so as to straddle the outer peripheral surface of the clutch body 28.

Here, if it is assumed that the spring clutch is installed in a clockwise winding state when viewed from the top of Fig. 6, then the electric motor 3
When the motor 3 is rotated clockwise, the spring clutch 27 is wound, connecting the clutch body 28 and the drive shaft 4, and both the dehydration tank 5 and the impeller 22 are rotated clockwise.However, when the electric motor 3 is rotated counterclockwise, the spring clutch 27 is not wound around the clutch body 28, no rotational driving force is transmitted to the drive shaft 4, and only the impeller 22 is driven via the rotation shaft 25.

Note that reference numeral 29 is a brake drum attached to the drive shaft 4.

On the other hand, a lid 33 is detachably attached to the opening of the dehydration tank 5.

As shown in FIGS. 4 and 5, the lid 33 is shaped like a dish and has a surrounding wall 34 that fits into the upper opening of the inner tank 13. Four cross-shaped water passage grooves 35 and four drainage grooves 36 arranged between them are alternately provided.

These water passage grooves 35 and drainage grooves 36 are divided by four fan-shaped weirs 37, and in this case, the intersection of the water passage grooves 35 has a receiving area for receiving rinsing water from the water supply hole 8. A water portion 38 is formed.

Each of the water passage grooves 35 is arranged to match one of the plurality of water conduits 16 formed on the peripheral wall of the dewatering tank 5, and the water passage groove 35 is arranged in the surrounding wall 34 at the end thereof. A small flange 39 is extended for guiding the rinse water from 35 into the water conduit 16.

On the other hand, the drain groove 36 is provided with a large number of drain holes 40 at its groove bottom, and the surrounding wall 34 is provided with a large flange 41 extending outward so as to cover the water conduit 16.

Note that this lid 33 is equipped with a suitable locking means 42 (which can be retracted).
(see FIG. 2) so as to be secured to the opening of the dehydration tank 5.

Next, the operation of this dehydrator will be explained.

Rinsing water from the water supply pipe 11 is supplied from the water supply hole 8 of the water conveyance device 9 to the water receiving part 38 of the lid 33, and is guided through the water passage groove 35 and its flange 39, enters the water conduit 16, and reaches the water conveyance chamber 15. .

Therefore, when the electric motor 3 is rotated to the left, the clutch body 28 idles relative to the spring clutch 27, so that only the impeller 22 rotates leftward at high speed via the rotating shaft 25.

As a result, rinsing water is drawn into the pump chamber 21 from the water introduction chamber 15 through the hole 23, and is continuously ejected into the dewatering tank 5 from the through hole 19 by the impeller 22.

After this rinsing water passes through the laundry in the tank and rinses it, most of it is drained out of the tank through the drain hole 40 and flange 41 of the drain channel 36, and some of it is 30 and into the water conduit 16.

In this manner, rinsing is performed by rotating the electric motor 3 to the left while supplying rinsing water from the water supply pipe 11.

During dehydration, the rinsing water from the water supply pipe 11 is stopped and the electric motor 3 is rotated clockwise.

As a result, the spring clutch 27 is moved to the clutch body 28.
Since the dehydration tank 5 acts to wrap around both the drive shaft 4 and connect the two, the dehydration tank 5 rotates clockwise at high speed.

(In this case, the impeller 22 rotates clockwise together with the dehydration tank 5, so no pumping action is performed.

) Therefore, the rinsing water in the dehydration tank 5 moves to the upper part through the tank wall due to centrifugal force, and is discharged to the outside of the tank through the drain hole 31 formed in the peripheral wall and the drain hole 40 in the lid 33.

By repeating the above-mentioned rinsing and dehydration two to four times, the laundry can be finished cleanly.

In the explanation of this embodiment, the drive shaft 4 and the electric motor shaft 26 are configured to be selectively connected by a one-way rotational clutch exemplified by the spring clutch 27, but this may be replaced by, for example, an electromagnetic clutch or the like. It is possible to replace it with other clutch means.

Further, the rotating shaft 25 of the impeller 22 is always connected to the motor shaft 26 via the clutch body 28 by a connecting pin 32, but this rotating shaft 25 can be connected to the motor shaft 26 by a suitable latch means like the drive shaft 4. Of course, it may also be selectively connected to the motor shaft 26 via.

Further, in some cases, an electric motor for the drive shaft 4 and an electric motor for the rotary shaft 25 may be provided separately, and these electric motors may be selectively driven and controlled.

As is clear from the description of the embodiments described above, according to the present invention, a pump means using an impeller 22 is provided at the bottom of the dehydration tank 5, and when the dehydration tank 5 is stationary, the impeller 22 squirts rinsing water into the tank. By doing so, the rinsing water sufficiently permeates the laundry, so that effective rinsing can be performed in the dehydration tank.

Therefore, by alternately repeating this rinsing and dehydration several times, sufficient rinsing can be performed with a smaller amount of rinsing water.

Furthermore, in addition to the rinsing water sufficiently permeating the laundry as described above, a portion of the rinsing water spouted into the tub is returned to the tub via the circulation hole 30, making it soft and gentle. Rinsing with finishing agents such as detergent and bleach can also be performed more effectively.

Furthermore, since there is no conventional water supply pipe inside the dehydration tank, it is easy to put in and take out the laundry, and when rinsing, the laundry is evenly distributed in the tank by the rinsing water that is ejected from below. Therefore, the dehydration tank can be started smoothly during dehydration.

[Brief explanation of the drawing]

Fig. 1 is a schematic vertical sectional view showing the dehydrator according to the present invention, Fig. 2 is a sectional view taken along the line A cross-sectional view taken along line ■-m in the figure, Figure 4 is a perspective view of the lid attached to the opening of the dehydration tank,
FIG. 5 is a plan view thereof, and FIG. 6 is a sectional view showing the spring clutch. In the figure, 1 is an outer shell, 2 is a dehydration tank, 3 is an electric motor, 4 is a drive shaft, 5 is a dehydration tank, 12 is an outer tank, 13 is an inner tank,
14 is a coupling, 15 is a water conduit chamber, 16 is a water conduit, 2
0 is a cover, 21 is a pump chamber, 22 is an impeller, 25 is a rotating shaft, 26 is a motor shaft, 27 is a spring clutch,
28 is a clutch body, 30 is a circulation hole, 31 is a discharge hole, 33 is a lid, 35 is a water guide groove, 36 is a drain groove, 37 is a weir, 39, 41 is a flange, and 40 is a drain hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A dehydrator capable of selectively performing rinsing and dehydration, comprising an electric motor, a pump chamber at the bottom, and a peripheral wall connected to a rinsing water supply means at the upper end. a dehydration tank having a water conduit whose lower end communicates with the pump chamber; a drive shaft supporting the dehydration tank and selectively connected to the electric motor;
an impeller that is housed in the pump chamber and that spouts rinsing water supplied through the water conduit upward from the bottom of the dehydration tank, the impeller being arranged coaxially with the drive shaft; and a clutch means interposed between the drive shaft and the electric motor, and during rinsing, the clutch means is turned off to keep the dehydration tank stationary. In this state, the impeller is rotated to forcibly eject the rinsing water from the water conduit upward from the bottom of the tank so as to permeate the laundry, and on the other hand, during spin-drying, the clutch means is turned on. A dehydrator characterized in that the dehydrating tank is rotated via the drive shaft.