JPS5883995A - Dehydrating and rinsing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The water sealing invention relates to a dewatering and rinsing device that (1) dehydrates and rinses laundry by injecting water into a dehydrating tank and intermittently rotating the dehydrating tank.

TECHNICAL BACKGROUND OF THE INVENTION A conventional dewatering and rinsing device involves placing laundry that has been washed with detergent in a washing tub into a dehydrating tank that has a large number of dehydrating holes on the peripheral wall, and then injecting water into the dehydrating tank for a certain period of time. The dehydration rinsing is performed by repeating rotationally driving the dehydration tank for a predetermined period of time a predetermined number of times.

Problems with the Background Art In the conventional configuration described above, the water poured into the dehydration tank tends to flow out from the dehydration hole, so there is a problem that the water permeates into the laundry in the dehydration tank insufficiently and the rinsing effect is poor. In addition, since the water poured into the dehydration tank is constantly drained out, it is impossible to add laundry treatment agents such as bleach, soft meter finishing agents, and antistatic agents to impregnate the laundry. .

OBJECT OF THE INVENTION The present invention was made in view of the above circumstances, and its purpose is to provide a dehydrating rinse that can effectively dehydrate and rinse laundry and impregnate the laundry with a laundry treatment agent. All equipment is available.

SUMMARY OF THE INVENTION The present invention provides a substantially non-porous dehydration tank for pumping water inside using rotational centrifugal force and discharging it from an upper part, a water injection device for injecting water into the dehydration tank, and There is a method in which the washing object is immersed in water and the water is centrifugally discharged by using a configuration in which the entire drive motor is operated at a low speed by intermittently rotating the washing object.

EMBODIMENT OF THE INVENTION Hereinafter, an embodiment in which the present invention is applied to a two-tub washing machine will be described with reference to all the drawings.

First, the general structure of a two-tub washing machine will be described based on FIGS. 1 to 4. Reference numeral 1 denotes an outer box, in which a washing tub 2 and a dewatering tank 5 integrally molded from plastic are disposed. Further, at the inner bottom of the washing tub 2, stirring blades (none of which are shown) that are rotationally driven by an anti-layer motor are provided. 4 is a dehydration tank placed in the dehydration receiving tank 3, which has a tapered cylindrical shape with a bottom that gradually increases in diameter as it goes upward, and several M pieces arranged in a row on the upper part of the peripheral wall. It has a discharge FL 4a and has a substantially non-porous shape as a whole, and a locking annular portion 4b is formed at the upper end by bending it into an arc shape. or,
A dehydration shaft 5 is connected to the center of the bottom of the dehydration tank 4 so as to protrude downward, and the middle part of the dehydration shaft 5 is inserted into and supported by a bellows B attached to the bottom of the dehydration receiving tank 3.
The lower end of the dehydration motor 7 is connected by a connector 8 to a rotating shaft 7a of a dewatering motor 7, which is a drive motor elastically supported on the bottom of the outer box 1. Reference numeral 9 denotes a porous water spray cylinder made of, for example, sintered plastic powder, which has a vertically elongated cylindrical shape and is erected at the center of the bottom of the dehydration tank 4. 1Q is a frame member that has water permeability over almost the entire surface, and is formed by installing mesh plates 10b' inside vertical and horizontal frame parts 10a, and has a tapered shape that gradually increases in diameter as it goes upward. A roughly cylindrical metal knife. The drain 10 is inserted into the dehydration tank 4, and the vertical frame of the frame IC+a comes into contact with the circular surface of the circumferential wall of the dehydration tank 4, thereby creating a gap between the inner surface of the V political wall and the mesh plate 10b. A predetermined gap 11 is formed.

Reference numeral 12 denotes a cover attached to the upward opening of the dehydration receiving tank 5, and this cover has an opening 12 facing the top opening of the dehydration tank 4.
A is formed, and a water injector 13 serving as a water injecting device is rotatably installed in this inlet/outlet opening 12a. and,
A water inlet 13a is formed in the center of this water injector 13, and this inlet 15a is connected to the inlet/outlet 12a of the water inlet 15.
4, so that it faces the opening at the upper end of the water spray tube 9 when it is rotated so as to close it. 14 is a solenoid valve 15 for water in the outer box
A water supply hose 16 is connected to the water inlet. The water outlet of the water supply solenoid valve 15 can be swung left and right by an operating member 17 provided on the operation box 14, and when the water outlet is swung leftward, the water supply solenoid valve 15 The water from the water supply solenoid valve 15 is supplied to the washing tub 2, and when the water outlet is swung to the right, the water from the water supply solenoid valve 15 is supplied to the water injector 15.
It is designed to be supplied internally. In addition, 18 is a drain hose (5) connected to the drain port 3a of the dewatering tank 3, 19 is a holding plate that is removably fitted into the upper opening of the dehydrating tank 4, and 2o is a drain hose (5) connected to the drain port 3a of the dewatering tank 3. A dehydration lid 21 is pivotally installed above the cover 12 in the upward opening.
is a dehydration timer attached to the operation box 14.

Now, the configuration of the electric circuit will be described according to FIG.

22 and 26 are power supply terminals connected to a single-phase AC power supply, and power supply lines 24 and 25 are connected to these, respectively. The dewatering timer 21 includes a timer motor 26 and a timer switch 2 that is opened and closed according to the rotation of the timer motor 26.
7 to 31, and the timer switch 50 consists of a changeover switch having a movable contact piece C and fixed contact pieces a and bk. 62 is a lid switch that opens and closes in conjunction with the opening and closing of the dehydration lid 20 (FIG. 1i), 33 is a selection switch consisting of a changeover switch having a movable contact piece C and fixed contact pieces a and bi, and 54 is a buzzer serving as an alarm. Therefore, the dewatering motor 7 as a load, the water supply solenoid valve 15, the timer motor 26 and the buzzer 34 are connected to the lid switch 32, the timer switches 27 to 51 and the selection switch 33 between the power lines 24 and 25. They are connected as shown in FIG.

Next, the operation of this embodiment will be explained with full reference to the time chart of FIG. The laundry that has been washed with powdered soap in the washing tub 2' is put into the inner basket 10 of the dehydration tank 4 from the inlet/outlet 12a, the inlet/outlet 12aTh is closed by the water injector 16, and the laundry is dehydrated. The lid 20 is closed (at this time, the lid switch 62 is also closed). Thereafter, the contact piece (c-b) of the selection switch 36 is selectively closed, and the operating member 17 is operated to the right to swing the water outlet of the water supply solenoid valve 15 to the right. The dehydration timer 21 is set, for example, to the first position (maximum time position) of the "dehydration rinsing" process. As a result, first, the dewatering motor 7 is energized and rotated through the contacts (b-c) of the lid switch 52 and the timer switch 50, and the timer motor 26 is energized through the lid switch 52 and the timer switch 27. Then, the dehydration timer 21 starts timing operation.

In this case, the contact piece (c-b) of the timer switch 30
As shown in FIG. 6, the gap and the contact piece (c-a) are alternately closed for a certain period of time ta (for example, 1 minute). When the dehydration motor 7 is energized, it rotates the dehydration tank 4, and the centrifugal force of the rotation of the dehydration tank 40 causes the water containing powdered soap, which is the detergent impregnated in the laundry, to be extracted. The water is shaken off and reaches the inner surface of the circumferential wall of the dehydration tank 40 via the mesh plate 10b, and is then pumped up along the inner surface of the circumferential wall by the concave centrifugal force of the dehydration tank 40 and discharged from the discharge hole 4a, which is the upper part, into the dehydration receiving tank 5 yen. . Since the dewatering motor 7 runs for a certain period of time ta (for example, 1 minute), the dewatering motor 7
The rotational speed increases to near the steady rotational speed during normal dehydration, and a super-duty process is performed. Thereafter, the timer switch 60 is switched so that the contacts (e-&) are opened and closed, and the timer switch 29 is closed. This causes the lid switch 32. The #1 solenoid valve 15 for water supply is energized and opened via the timer switch 29 and the contacts (b-c) of the selection switch 35, and water is supplied into the water injector 15, and the water is supplied to the water inlet. 13&
The water is injected into the water spray cylinder 9 from the water source. Also, the dewatering motor 7 is now operated by the lid switch 52. The timer switch 51 and the timer switch 30 are energized through contacts (a-c). In this case, as shown in FIG. 6, the timer switch 31 closes for a short time tb (for example, 10 seconds) and closes for a short time tb while the dehydration timer 21 is in operation.
c (for example, 10 seconds), the dehydration tank 4 repeats driving rotation for a short time tb and inertial rotation for a short time tc. and,
Since the dehydration tank 4 is not driven synchronously for a short period of time and is constantly injected into the water spray tube 9 and receives braking force, its rotational speed does not increase much, and the rotation centrifugation of the dehydration tank 4 Water is not pumped up and discharged from the discharge hole 4a by force very much. Therefore, in an intermittent stroke in which the dehydration tank 4 is intermittently rotationally driven by repeatedly closing the timer switch 31 for a short time tb and opening for a short time tc, as the stroke progresses, the timer switch 31 shown in FIG. ) and (b)
As shown in (9), water is gradually stored in the dehydration tank 4, and when the dehydration tank 4 is rotated during (9), the water surface becomes parabolic as shown by the two-dot chain line, and the dehydration tank 4 becomes When the rotation is stopped, the water surface becomes approximately horizontal as shown by the solid line, and this change causes the laundry to be agitated up and down. Then, some time before the end of the intermittent process, as shown in Figure 4 (0), the dehydration tank 4 will be filled with water, and the laundry will be immersed in the water. . Thereafter, the low-speed operation consisting of the above-mentioned overtime stroke and the intermittent stroke that follows is performed multiple times, for example, three times, and the "dehydration process" is completed. Then, when the "dehydration clove" process is completed,
The dehydration timer 21 shifts to the next normal 1 dehydration process, and the timer switch 60 continuously switches to the contact piece (c-b).
As a result, the dewatering motor 7 is continuously energized via the contact pieces (b-c) of the lid switch 62 and the timer switch 60, and the dehydrating tank 4 is maintained at a steady state. It is driven to rotate at the rotational speed, and the water inside is pumped up and released into the dehydration tank 5 from the discharge hole 4&, which is the upper part.Afterwards, when all the water in the dehydration tank 4 is released, the water inside the dehydration tank is discharged. The water is shaken off from the laundry in the washing machine 4 and discharged from the discharge hole 4a in the same manner as described above, and a normal dewatering operation is performed. Of course, since the timer switch 29 is opened during this "dewatering" process, the water supply solenoid valve 15 is not energized and water is not injected into the water spray tube 9. This "dehydration process" is carried out for a fixed period of time (for example, 5 minutes), but some time before the end of this process (for example, 10 seconds), the timer switch 28 closes and the buzzer 34 sounds.
will be energized and begin to sound, giving a forecast that the operation will end. In addition, if the contact piece (C-8) of the selection switch 35 is closed in advance, the water supply solenoid valve 15 will not be energized during the "dehydration clove" process, and water will not be injected into the water spray tube 9. .

According to this embodiment, the following effects can be obtained. That is, in the "dewatering process" performed by the dewatering timer 21, low-speed operation consisting of a full-time stroke and an intermittent stroke is performed multiple times, so that water is stored in the dehydration tank 4 during the intermittent stroke. Water and laundry can be agitated, and therefore water can be sufficiently penetrated into the laundry without unevenness, improving the dehydration and rinsing effect. Even if the metallic soap produced by the calcium contained in the laundry adheres to the laundry, it can be washed off, and furthermore, it is stored in the dehydration tank 4 in the final intermittent process of the ``dehydration process''. Laundry treatment agents such as bleach, soft finishing agents, and antistatic agents can be added to the laundry using water, making it extremely convenient and extremely time consuming in the ``spinning'' process. During the process, the water in the dehydration tank 4 and the water impregnated in the laundry can be discharged all at once, and all of the detergent and metal soap can be discharged. In addition, in the intermittent process of the "dehydrating cloves" process, water is constantly poured into the water sprinkling tube 9 to allow water to pass through the laundry while dehydrating and rinsing. is not necessary, and dehydration can be carried out in a much shorter time.

Furthermore, since the water sprinkling tube 9 is arranged upright in the dehydration tank 4, water can be supplied to the laundry almost evenly, and the laundry can be dehydrated even more evenly. Then, since the inner fin Ol- was arranged in the dehydration tank 4,
The laundry is not pressed against the inner surface of the peripheral wall of the dehydration tank 4, and therefore the flow of water passing through the entire laundry is not obstructed, and the water can evenly penetrate through the entire laundry 91. This makes it possible to further improve the smearing effect.

In addition, the time ta of the overtime process of the "dehydration process" in the above embodiment is not limited to 1 minute, but can be set as appropriate.

It goes without saying that the invention 8A is not limited to the embodiments described above and shown in the drawings, and can be modified as appropriate without departing from the spirit of the invention.

Effects of the Invention The present invention makes it possible to sufficiently infiltrate water into laundry by intermittently rotating the dehydrating tank while pouring water into the dehydrating tank, and by operating the dehydrating tank at a low speed. It is possible to achieve the same dehydration effect as described above (13), and it has excellent effects such as being able to impregnate the laundry with the laundry treatment agent.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a two-tank washing machine, in which Fig. 1 is a longitudinal sectional front view of the dehydration tank side, Fig. 2 is a sectional Ifi view taken along the line - Figure 3 is a perspective view of the dehydration tank and inner basket, Figures 4 (a) to (e) are schematic vertical cross-sectional views of the dehydration tank to explain the function, Figure 5 is an electric circuit diagram, and Figure 6 is a timer. It is a chart. In the drawing, 3 is a dehydration receiving tank, 4 is a dehydration tank, 7 is a dehydration motor (drive motor), 9 is a watering cylinder, 10 is an inner basket (frame member),
13 is a water injector (water injector VC), 15 is a solenoid valve for water supply, 2
1 indicates a dehydration timer. (14) Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. A substantially non-porous dehydration tank that pumps up internal water by rotational centrifugal force and discharges it from an upper part, a water injection device that injects water into the dehydration tank, and an intermittently operated dehydration tank. and a drive motor that operates at a low speed by rotating the laundry at a low speed, and the laundry is immersed in water and centrifugally discharged by operating the drive motor at a low speed while injecting water with the water injection device. Dehydration and rinsing equipment. 2. The dehydrating clove device according to claim 1, wherein a frame member having water permeability is provided over substantially the entire circumferential concave portion of the dehydrating tank! 0