JPH0310945Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a washing machine, and particularly to a washing machine that can carry out washing, rinsing, spin-drying, and drying as a series of washing cycles.

"Prior Art" Conventionally, this type of washing machine typically has a rotating shaft 37 of a rotating drum 24 provided in a water tank 35 set in a horizontal direction, as shown in FIGS. 2 and 3. A drum type is known. To give an overview of such a drum-type washing machine, for example, the driving force for rotating the rotating drum 24 around a horizontal axis is transmitted from a motor 31 to a pulley 32, and integrally attached to the rotating drum 24 via a belt 33. The signal is transmitted to the attached pulley 34. In addition, washing water is supplied through a water supply valve 36 provided at the top of the washing machine, and waste water from washing, rinsing, or dehydration is discharged through a drain valve 38 provided at the bottom of the water tank 35. .

On the other hand, the blower fan 21 rotates during the drying process.
is driven by a motor 20, and the airflow generated thereby is heated by a heater 22. The heated airflow flows through a duct 23 provided outside the aquarium 1.
The dehydrated laundry is then fed from the circumferential direction into the rotating drum 24 and dried. This airflow is then discharged into the duct 25, dehumidified in the heat exchanger 26, sent to the duct 27, and circulated again to the blower fan 21.

In such conventional washing machines, the rotating drum 24
The laundry inside will rotate around the horizontal axis. Therefore, when washing with this washing machine,
A large amount of water is injected into the rotating drum 24 and the water level is raised to the inside of the rotating drum 24 to form washing water 39.
This is done by fully soaking the laundry in the rotating drum 24 and rolling the laundry as the rotating drum 24 rotates.

``Problem to be solved by the invention'' However, when washing with such a conventional washing machine, the washing water 39 enters the rotating drum 24, and the washing water is removed by the rotation of the rotating drum 24. This caused a problem in that the detergent in the washing water was foamed before the laundry was washed. When a foaming detergent is used, the drum is densely filled with laundry foam.
Despite the rotation of the rotary drum 24, the bubbles act as a buffer, weakening the rolling motion of the laundry and reducing cleaning efficiency.

"Purpose of the invention" Therefore, the main purpose of this invention is to provide a washing machine that increases cleaning efficiency during washing.

"Means for Solving the Problems" In order to achieve the above object, the main means adopted by this invention are: a water tank; In the washing machine, the washing machine includes a water reservoir formed at the lower part of the water tank, and washing water from the water reservoir is sent to an opening of the rotating tub, and the laundry inside the rotating tub is washed from this opening. A water circulating means for supplying and circulating water inside the rotary tank; and a water level setting means for stopping the water supply when the water level in the water reservoir reaches a predetermined position below the rotary tank during water supply. It is.

``Operation'' When a certain amount of water is injected, an appropriate amount of water is stored in the water reservoir at the bottom of the tank, and the water level is set at a position below the rotating tank. Next, when detergent is added to the laundry in the rotating tub, the laundry is ready for washing. Next, when the rotating tank starts rotating, the water in the water reservoir is pumped to the opening of the rotating tank by a predetermined water supply means such as a pump. When the water sent through this opening is poured directly onto the laundry in the rotating tub, the detergent on the laundry is dissolved in this water, and some of it penetrates into the laundry and removes it. The remaining water flows into the water reservoir and mixes with water to become washing water. Thereafter, this washing water circulates through the path of rotating tub -> water reservoir -> opening -> rotating tub, and continuously washes the laundry in the rotating tub.

``Effects of the invention'' According to this invention, the washing water is circulated and applied directly to the rolling laundry, and the rotating tub is not immersed in the washing water in the water reservoir. This prevents the washing water from being agitated, making it possible to suppress the generation of washing foam, thereby increasing washing efficiency.

The above objects, other objects, features and advantages of this invention will be achieved with reference to the drawings. It will become clearer from the detailed description of the examples below.

Embodiment FIG. 1 is a schematic side sectional view showing an embodiment of the device of this invention.

Note that the following example is only one specific example of this invention, and the technical scope of this invention is not limited by this example.

In FIG. 1, a washing machine 1' is provided with a laundry entrance/exit 1b approximately in the center of a front portion 1a of a main body frame 1, and a lid 1c which can be opened and closed over this entrance/exit 1b. An opening 2a of a hollow cylindrical water tank 2 with a horizontal cylindrical axis is connected to this entrance 1b via an expandable and retractable gasket 3. The water tank 2 is elastically supported within the body frame 1 by a known buffer member (not shown) mainly consisting of a coil spring, and is appropriately provided with anti-vibration measures.

In such a water tank 2, a drainage hole (not shown) for dehydration is appropriately formed, and a hollow cylindrical rotary tank 4 corresponding to the shape of the water tank 2 is housed.
That is, in this rotary tank 4, its rotary shaft 5 is rotatably horizontally supported on the back wall 1d of the water tank 2, and the front plate 4b has the opening 2
An opening 4a corresponding to a is formed. Note that this rotating shaft 5 has a
A pulley 7 is installed, and the driving force of a motor 9 is transmitted to this pulley 7 via a belt 8.

In the water tank 1, a water reservoir 6 having a relatively large space is formed at the lower part of the water tank 2 which accommodates the rotating tank 4 as described above. This water reservoir 6 stores washing water 10, that is, an aqueous solution containing an appropriate amount of detergent, during washing. A known detection switch (not shown) is provided to stop the water supply so that the washing water stored in the section 6 does not rise above a predetermined water level. That is, this predetermined water level is a level at which the lower part of the rotating tub 4 is not contacted and the rotating tub 4 is not immersed in the washing water 10. Note that, for example, a floating type detection switch can be used as the detection switch used here. A lint filter chamber 14 is provided further below the water reservoir 6 so as to be able to communicate with the lint filter chamber 14.

This lint filter chamber 14 includes a drain hose 13 for discharging waste water to the outside of the main body frame 1 through a drain valve 11 after washing or rinsing, and a drain hose 13 for draining the waste water from the water reservoir 6 during washing. A water supply hose 15 sends water out via the circulation pump 12 as shown by the solid line arrow in the figure, and an air blower sends out moist airflow circulating from the lower part of the water tank 2, that is, the water reservoir 6, as shown by the chain line in the figure during drying. The ducts 40 are each individually connected. Of these, the water supply hose 15 extends upward from the lint filter chamber 14 to the front surface of the water tank 2, and its hose end 15a is fixed to the upper end A of the opening 4a of the rotating tank 4.
The hose end 15a is formed into a nozzle shape and is slightly inclined downward so that it can easily catch the laundry in the rotating tub 4.

Further, like the water supply hose 15, the ventilation duct 40 extends upward from the lint filter chamber 14 to the front surface of the water tank 2, and is fixed to the upper end A of the opening 4a of the rotary tank 4. And this duct end 4
0a is also tilted slightly downward so that air can be easily blown directly onto the laundry in the rotating tub 4. However, this ventilation duct 40 incorporates a ventilation fan 43 and a heater 41 that are rotated by the drive of a motor 42 installed at the top of the water tank 2 .

Note that a water supply pipe 17 is connected to the upper part of the water tank 2 via a water supply valve 16;
is branched midway through a switching valve 18, and one of them is connected to the above-mentioned ventilation duct 40. This is especially true when dry
A part of the water supply that has passed through the water supply pipe 17 cools the inside of the ventilation duct 40, and the humid airflow rising from below is water-cooled and dehumidified here. The water dehumidified within the ventilation duct 40 and a portion of the water supply used for this dehumidification are appropriately discharged to the outside from the above-mentioned drainage hose 13.

Next, the functions of the embodiment apparatus configured as described above will be explained. First, regarding the circulating water route shown by the solid line arrow in FIG.
Water is injected through the water supply pipe 17. At this time, the switching valve 18 is set to supply water to the water tank 2 side. Then, the water level of the water stored in the water reservoir section 6 is detected, and when the stored water reaches a predetermined water level,
This water supply is stopped, and an appropriate amount of water is stored in the water reservoir 6 of the water tank 2.

Next, when the detergent is added and washing begins,
By driving the pump 12, water is supplied to the water supply hose 15.
sent to. The water in the water supply hose 15 is transferred to the rotating tank 4.
From the upper end A of the opening 4a, the liquid is sprayed directly onto the laundry in the tub under strong pressure. At this time, the detergent adhering to the laundry dissolves in this jetted water and permeates into the laundry. Therefore, the detergent efficiently washes the laundry without foaming, passes through the rotating tank 4 and flows into the water reservoir 6, where it mixes with water to become washing water. This washing water becomes the above-mentioned circulating water and continuously washes the laundry.

On the other hand, the water reservoir 6 always stores enough washing water to sufficiently wet the laundry as described above, and as in washing with a conventional washing machine,
A large amount of washing water is stored in a water tank 2 and rotates in a rotating tank 4.
is not immersed in the water, thereby preventing a decrease in cleaning efficiency due to washing foam generated at a high density.

Subsequently, regarding the air blowing path indicated by the chain line arrow in FIG. 1, when the waste water is discharged from the drain hose 13 via the drain valve 11, the fan 43 is rotated by the drive of the motor 42. The air blown under high pressure by the fan 43 is sufficiently heated by the heater 41 and becomes hot air. When this hot air is directly blown onto the laundry in the tub from the upper end A of the opening 4a of the rotating tub 4, the hot air directly dries the laundry without heat loss. In this way, the laundry is efficiently dried and the moist air is
The air is sent from the lower part of the water tank 2 to the air duct 40.
On the other hand, a portion of the supplied water flows into the air duct 40 by switching the switching valve 18, and the air duct 40 is sufficiently cooled. Therefore, the air that has entered the air duct 40 is rapidly cooled and dehumidified, and returns to the fan 43 in a sufficiently dry state.

[Brief explanation of the drawing]

FIG. 1 is a schematic side sectional view showing an embodiment of the device of this invention, FIGS. 2 and 3 are conventional devices which are the background of this invention, FIG. 2 is a schematic longitudinal sectional view, and FIG. The figure is a schematic side sectional view. Explanation of symbols, 1'...Washing machine, 1...Body frame,
2...water tank, 4...rotating tank, 5...rotating shaft, 6...
...Water reservoir, 15...Water supply hose, 40...Blower duct.

Claims (1)

[Claims for Utility Model Registration] (1) In a washing machine equipped with a water tank and a rotating tank housed in the water tank with its rotational axis horizontal and having appropriate water passage holes formed therein, a water reservoir formed at the bottom of the water tank. a water circulation means that sends washing water from the water reservoir to an opening of the rotary tub, and circulates the water from the opening into the rotary tub in order to wash the laundry inside the rotary tub; during water supply; . A washing machine comprising: water level setting means for stopping water supply when the water level in the water reservoir reaches a predetermined position below the rotating tub. (2) The washing machine according to claim 1, which is registered as a utility model and includes an air circulation means for passing dry hot air through a duct installed outside the water tank and blowing the air into the rotating tank from an opening of the rotating tank. . (3) Utility model registration claim 1, comprising a water supply route for supplying water to the water tank, the water supply route being branched into at least two routes, and one of the routes being switchably connected to the duct. The washing machine according to item 1 or 2.