JPS6219200B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a two-tub washing machine having a structure capable of performing dehydration and rinsing.

A two-tub washing machine that has been developed in recent years and has a structure that allows this kind of dehydration and rinsing is basically made so that water can also be supplied to the spin-drying tank, whereas in the past it was only possible to supply water to the washing tub. The switch can be made by operating a lever manually by the user, and the dehydration operation combined with water supply to the dehydration tank (dehydration basket) can effectively remove detergent from the laundry immediately after washing. Since there is no longer a need for rinsing in the washing tub and the washing can be done exclusively, it is highly effective in that a large amount of laundry can be washed in succession. However, even with such an effective method, as mentioned above, the method in which the water supply is changed by manually operating the lever one by one has the disadvantage that it is cumbersome to handle and the effectiveness is reduced by half. When the laundry is transferred from the washing tub to the spin-drying tub, the amount of water in the washing tub decreases and the water level becomes insufficient for washing due to the water contained in the laundry being transferred. However, at this time, the above-mentioned lever must be set to the washing tub side, so in order to perform the dewatering and rinsing in the dehydrating tub, it is necessary to wait for the water level in the washing tub to recover by the above-mentioned resupply of water. There was also the hassle of having to wait and then go through the steps of switching and operating the lever.

The present invention has been made in view of the above-mentioned circumstances, and therefore, its purpose is to provide a device that can perform dehydration and rinsing and eliminates the need to operate a lever.
Another object of the present invention is to provide a two-tub type washing machine that eliminates the need for the user to wait for dewatering and rinsing after water is resupplied into the washing tub.

An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, 1 is a washing tub, 2 is
3 is a dehydration tank, and 3 is an outer box in which both tanks 1 and 2 are placed side by side. Above this outer box 3 are both tanks 1 and 2.
A common operation box 4 is provided for both the washing tub 1 and the washing timer 5 on the side of the washing tub 1.
A water distribution pipe 9 is provided with a dehydration timer 6 on the side of the dehydration tank 2, and has a first water supply valve 7 and a second water supply valve 8 in separate passages in the intermediate part between them.
The first water supply valve 7 side passage faces the first water supply water channel 10 leading into the washing tub 1, and the second water supply valve 8 side passage faces the second water supply water channel 10 leading into the dewatering tank 2. It faces water supply channel 11. Note that 12 is a dehydration basket disposed in the dehydration tank 2, and 13 is a water flow controller provided in the passage on the second water supply valve 8 side of the water distribution pipe 9, which allows only a fixed amount of water to flow through, for example, 10/min.

Here, the washing timer 5 is, in detail, a second timer.
As shown in the figure, it has a timer motor 14 and a timer switch 15 that is opened and closed by the timer motor 14 via a cam (not shown) as shown in FIG.
On the other hand, the dewatering timer 6 also operates a timer motor 16 and timer switches 17, 1 which are opened and closed as shown in FIG. 4 via a cam (not shown).
8, 19. In FIGS. 3 and 4, the hatched areas represent the closed state of the switch, and the other blank areas represent the open state. FIG. 2 also shows a water level switch 20 installed in the washing tub 1 in order to respond to the water level in the tub. The timer switch 15 of the washing timer 5 is connected to the timer motor 14 and the washing motor 21, and the timer switch 15 of the washing timer 5 is connected to the timer switch 15 of the washing timer 5 via a contact piece ob that closes when the water level is insufficient. Said first water supply valve 7
It is also connected to the relay coil 22c of the relay 22. On the other hand, further in FIG. 2, 23 is a lid switch that is linked to the opening and closing of a lid (not shown) on the dehydration tank 2, and 22s is a normally closed relay switch of the relay 22 provided as a control switch.
The timer switch 17 of the dehydration timer 6 is connected to the timer motor 16, the timer switch 18 to the dehydration motor 24, and the timer switch 19 to the second water supply valve 8 through these.

Now, in the case of this embodiment configured as above,
First, when the washing timer 5 is set to the operation start range, the timer switch 15 is closed and the water level switch 20 is turned on based on the zero water level in the washing tub 1.
The first water supply valve 7 is energized through the contacts ob and b, thereby supplying water into the washing tub 1. Next, when the water in the washing tub 1 reaches a specified water level based on the water supply, the water level switch 20 opens the contact piece ob and closes the contact piece o and a. The water supply is stopped by cutting off the power supply to the first water supply valve 7, and instead, power is supplied to the timer motor 14 and the washing motor 21 to start them and perform "washing".

On the other hand, after the above-mentioned "washing", the laundry is transferred into the dehydration tank 2, the lid (not shown) is closed, and the dehydration timer 6 is set to the "dehydration rinse" operation start range, and the lid switch 23 and First, the timer switch 17, via the relay switch 22s,
The timer motor 16, the dewatering motor 24, and the second water supply valve 8 are energized by each of 18 and 19,
In this way, while rotating the dewatering basket 12, an optimum amount of water, for example, 10/min, is supplied to the inside of the dehydrating basket 12 via the water flow controller 13, and then, by opening the timer switch 18, the dewatering motor 24 is turned on. The rotation of the dehydration basket 12 is stopped or loosened and only water supply continues to perform water seepage, and the subsequent dehydration basket 1
"Dehydration rinsing" is performed by repeating dehydration by restarting the rotation in step 2. Note that "dehydration" is a normal dehydration operation in which only the rotation of the dehydration basket 12 is performed continuously.

In contrast to the above, if you set the dehydration timer 6 and then set the washing timer 5 when performing "dehydration rinsing" and "washing" at the same time, the water level in the washing tub 1 becomes insufficient at this time. If so, since the water level switch 20 closes the connection between the contacts ob and b, the first water supply valve 7 is energized to re-supply water into the washing tub 1 as described above, and at the same time,
The relay coil 22c of the relay 22 is energized to open the relay switch 22s, and therefore, at this time, the dehydration timer 6 is also not energized and remains set in a standby state. When the water level in the washing tub 1 recovers and the water level switch 20 switches to the state where the contact pieces o and a are closed, the washing operation starts as described above, and at the same time the relay 22 also closes the relay coil. 22
c is cut off to close the relay switch 22s, and thereafter the dehydration timer 6 is energized to perform dehydration and rinsing as described above. In addition, even if "washing" is performed during "dehydrating and rinsing", if the water level in the washing tub 1 is insufficient, the washing timer 5 is set to perform the "washing" and the same procedure as described above is performed. The "dehydration and rinsing" is interrupted, and when the water level in the washing tub 1 recovers, the "dehydration and rinsing" is automatically resumed in the same manner as described above.

As is clear from the embodiments described above, the present invention
The washing tub is provided with a first water supply valve that supplies water into the tub, a water level switch that responds to the water level in the tub, and the first water supply that responds to the water level in the tub via this water level switch. A washing timer is provided to energize a valve or a washing motor, and a second water supply valve is provided for the dehydration tank to supply water to the inside of the dehydration basket in the tank, and a control switch operated by the water level switch is arranged. This device is characterized by being provided with a dewatering timer that cooperates with the control switch to turn on and off the power to the second water supply valve and the dewatering motor, thereby eliminating the need for conventional lever operations. ``Washing'' and ``dehydration rinsing'' can be performed by simply operating the washing timer and dehydration timer, respectively, without the need for washing, thereby greatly improving handling. When ``washing'' is performed at the same time as rinsing, once water is re-supplied to the washing tub and the water level recovers, the ``spin-rinsing'' that has been on standby during that time will automatically start and be carried out. Therefore, it is possible to provide a two-tub washing machine which has remarkable effects such as eliminating the trouble of the user having to wait for the water level to recover and then switching the lever, and further improving the above-mentioned ease of handling. It is.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a front view of the main parts, Fig. 2 is an overall electrical circuit diagram, Fig. 3 is a time chart of a washing timer,
Figure 4 is a time chart of the dehydration timer. In the figure, 1 is a washing tank, 2 is a spin-dry tank, 5 is a washing timer, 6 is a spin-dry timer, 7 is a first water supply valve, 8 is a second water supply valve, 12 is a spin-dry basket, and 20 is a water level switch. , 21 is a washing motor, 22 is a relay, 22s is a relay switch (control switch),
24 is a dewatering motor.

Claims (1)

[Claims] 1. A washing tank is provided with a first water supply valve that supplies water into the tank, and a water level switch that responds to the water level in the tank; Install a laundry timer that energizes the water supply valve or laundry motor,
On the other hand, the dewatering tank is provided with a second water supply valve that supplies water to the inside of the dehydration basket in the tank, and a control switch operated by the water level switch, and a control switch that cooperates with the control switch to operate the second water supply valve and the water supply valve. A two-tub washing machine characterized by being equipped with a dewatering timer that turns on and off power to the dehydrating motor.