JPS59232584A - Washer with water storage tank - 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 (a) Industrial Application Field The present invention is a washing machine that automatically controls at least two rinsing steps, and a water storage system that stores water in order to reuse the liquid in the washing tub. This invention relates to a washing machine with a water storage tank.

Conventional technology In conventional washing machines with a water storage tank, the water tank gets dirty during use, and if the user does not wash the water tank frequently, the liquid returned from the water tank to the washing tank can become dirty. There were many.

(C) Purpose of the Invention The present invention provides for, when choosing to store the liquid in the washing tub after the second or subsequent rinsing process in a water storage tank, the water from the rinsing process before this rinsing can be effectively used. To provide a washing machine with a water storage side that can automatically wash a water tank and suppress dirt in the tank.

<2> Structure of the Invention The present invention provides a connecting waterway that communicates the bottom of the washing tub and the bottom of the water storage tank with a connecting valve that opens and closes this waterway and a pump that sends water from the washing tub to the water storage tank. is connected to the υ1 waterway through the drain valve of the K41 tank, and a reuse selection means is provided to select which cycle of liquid in the washing tank should be automatically transferred to the water storage tank. When it is selected to transfer the liquid after the second and subsequent rinse strokes to the water storage tank by the means, after the rinse strokes before the selected rinse stroke are completed, the connecting valve is opened and the pump is turned on after a predetermined time delay. The tank Ik is driven and the drain valve is opened, and the tank Ik continues to be opened even after the pump is stopped to perform the cooling stroke of tank Ik.

With this configuration, during the tank cleaning process, the relatively clear water in the washing tank moves to the water tank, and is stirred by the drive of the pump to remove Yη adhering to the wall of the water tank.
Since the drain valve is open, the liquid that removed this dirt is discharged through the drain valve, so instead of simply draining the rinse water, it is effectively used to automatically clean the water tank and connecting waterway. do.

(e) Examples Examples of the present invention will be described below with reference to the drawings. Figure <1> shows the main structural parts of the water storage tank (washing machine) according to the present invention. A washing tub (3) which also serves as a dehydration tub is provided inside (2).

The peripheral wall of the water tank (3) has a large number of dehydration holes 4). (5) is a balanced link. A rotating R (6>) is provided at the center of the bottom of the washing tub (2).
) on the back of the rotary blade (6) and the washing machine I'! A drive motor (7) and a bearing (8) for rotating the shaft (3) are attached. A throat water port (9) of the washing dC tank (3) is provided on the bottom of the outer tank, and this jJF throat water port is connected to a drain valve (1).
0> to the drainage channel (11). (12)
is a solenoid for operating the drain valve, and the solenoid (12)
Encouragement? The valve opens by pressing H. This solenoid (1
2) also operates a clutch device and a brake device (not shown) and energizes them to turn on the clutch device and transmit the rotation of the drive motor (7>) to the washing tub (3) as well as the rotary blade (6); Then, release the brake device of the washing tub (3).〈13) is the overflow port (14)
It is connected to the waterway (11).

The water tank (15) can be attached to the side of the frame <1>,
The bottom of the water storage tank (15) and the drainage cco (9) are connected by a connecting channel 16). This connecting waterway (16) includes a connecting valve (17) that opens and closes the waterway, and a reversible pump (1
8). The reversible pump (18) has a pump motor (1
9). The pump (18) is attached to the bottom of the water tank (15). Connecting waterway <16
) can be communicated with the drain channel (11) via the drain valve (10).

Therefore, when the connecting valve (17) and the drain valve (10) are opened at the same time, the liquid in the water tank (15) is also drained via the connecting channel (16) JJl + water tank 10) and the drain channel (11). When the connecting valve (17) is open and the drain valve (10) is closed, the washing tub (3) and water tank (15) are connected to the connecting channel (1).
6>, and by rotating the pump (18) in the forward direction, the water in the washing tank (3) moves to the water tank <15> (
(hereinafter referred to as liquid transfer), and by rotating the pump (18) in the opposite direction, the water in the water storage tank (15) is transferred to the washing tank (
3) (hereinafter referred to as liquid return). (2
0) is a noro [・
When the float switch (20) is closed, there is no water in the water tank (15), and when the float switch (20) is open, there is no water in the water tank (15).
) is in a state where there is water inside.

(21> is the control box, and the front panel has the second
) There are various operation buttons as shown in the figure. (22) is a power switch, and when this is turned on, the microcomputer (23) of the control circuit section starts operating. FIG. 3 shows a control diagram 71379 showing the connection relationship between the microcomputer 23) and each input/output device.

24〉 is the water f◇-switching knob for setting the water level to switch the water level of the washing tub (3) to high, medium, or low.
) side liquid level switch (25), and when the washing tub side reaches the set water level and is -C, the liquid level switch (25)
5) Close i-1. (26) is the rinse selection knob.
When this knob is set to the water injection side, the water injection changeover switch (27) is closed and water injection rinsing can be selectively performed. (28)
～(33) is the start switch that also serves as course selection.
There is one switch for each of the fully automatic course, semi-automatic course, wash only course, rinse dehydration course, dehydration only course, and push washing course, and these switches (28) ~
When a signal from (33) is input to the macro computer (23), operation starts. Here, each course other than the push-washing course is carried out within the range shown in the process diagram of the m (4') diagram. (33) is the start switch for the push washing course.
Since the selection method for /ch is different from other courses, it is placed a little apart from the other scoot switches (28) to (32).

(34) is a reuse selector switch which serves as a reuse selection means, and this switch is used to select between soap water reuse, tin water reuse, no reuse, and (water tank) U water.

Here, soap water reuse means that, as is clear from the process diagram in section (4), after the washing process is completed, the above-mentioned one-liquid transfer process is performed, and the washing liquid is stored in the water tank (15) for reuse. Water reuse means that after the second rinsing process is completed, the 1-liquid transfer described above is performed and the rinse water is stored in the water tank (15).No reuse means Washing tub (3
) drains all the water in the tank without transferring it to the water tank, and (water tank) drainage means opening the υ1 water valve (10) and the connecting valve (17) and draining the water in the washing tank (3). Water supply to 1
35) to open the valve. ○ in the process diagram in Figure 4)
The mark indicates that the process is executed, and 0 indicates a process that is executed only in the case of a careful course.

〈36) is a water supply port which supplies water from I') to the water tank 3) by opening the water supply 135), and when the reuse switching switch 34〉 is connected to the water tank (water tank) Jj [when water is selected] Connect an external hose to this water supply port (36) and connect it to the water tank (15).
).

(37) rotates the drive motor 7) clockwise.
The rotary blade rotation circuit (38) is a left rotation drive circuit that rotates the rotor blade to the left. During cleaning and rinsing, the microcomputer (23) alternately energizes the right rotation drive circuit (37) and the left rotation drive circuit (38) to rotate the rotor blade. (6) is reversed, and during dewatering, the above-mentioned renoids (12) and the right rotation drive circuit (37) are energized to perform dehydration operation. (39) is a drive circuit for forward rotation of the pump <18>. (40> is a drive circuit for reverse rotation of the pump (18>). (41) is a drive circuit for rotating the pump (18>) in the reverse direction.
2) is a lid switch that opens when it is opened, and also serves as a vibration detection switch during dehydration, and in this embodiment is also used to cancel a drainage abnormality. (43) is a buzzer.

The operation of this embodiment will be explained according to flowchart 1- in FIGS. (5) to (14). Figures (5) to (7) are flowcharts showing the general outline of the software in this embodiment. Since the process is shown in the form of a subroutine in FIG. (14), FIGS. (8) to (14) will be explained first.

Figure (8) shows a flowchart of the above-mentioned 1 liquid return,
To restore the liquid, the microcomputer (23) first determines whether there is water in the washing tub (3) based on the open/closed state of the liquid level switch (25). If there is water in the washing tub (3), do not restore the liquid and proceed to the next process.If there is no water in the washing tub (3), the microcomputer checks whether there is an abnormality in the pump (18). Judgment is made based on the stored contents in (23), and if the pump abnormality has occurred, the water supply valve (35) is opened until the liquid level switch 25) is closed to supply water to the washing tub 3).

Here, occurrence of abnormality in pump <18> means pump (18)
When the pump (18) is not operating properly due to foreign matter being clogged in the In this example, even if the washing tub (3 minutes) is run for more than 3 minutes,
> refers to a case where there is no change in at least one force of the liquid level switch (25) which is the water level detection means of the water tank (15) or the float switch (20) which is the water level detection means of the water tank (15). is a microcomputer (23
) is determined to be abnormal with the pump, this fact is memorized, and the connecting valve 17) is thereafter closed to stop the pump (18).

If there is no abnormality in the pump, determine whether there is water in the water tank (15) by checking the open/closed state of the float switch (20), and if there is water in the water tank (15), 20) OFF ) has a connecting valve (17)
Open and output to the drive circuit (40) and pump (18)
Rotate it in the opposite direction to drain the water from the water tank (15) to the washing tank (3).
Move to. If there is no water in the water tank (15) (float switch (20>ON), open the water supply valve (35) until the liquid level switch (25) closes to supply water to the Kou 4A tank (3). .

When the liquid level switch (25) closes while the pump (18) is rotating in reverse, the connecting valve <17) is immediately closed and the pump (18)
to complete the liquid return. Also, while the pump is rotating in reverse, the water in the water tank (15 liters) runs out and the float switch (20
When the valve is closed, reverse rotation is continued for 11 seconds from that point to complete the liquid return. This is a float switch (2
0> is closed, there is still some water left in the water tank (15), and there is also water in the connecting waterway (16) other than the water tank, so all this water must be drained from the washing tank. (3)・＼This is to allow for recovery and reduce water waste as much as possible. If the liquid level switch (25) is not closed at this point, the water supply valve 35) is opened to supply water until it is closed.

If the liquid level switch (25) does not close even if the pump (18) continues to rotate in reverse for 3 minutes, or if the solo switch (20
) does not close, it is determined that there is an abnormality in the pump as described above, the connection valve (17) is closed, and the pump (18>) is stopped.

The microcomputer (23) then stores the pump abnormality and does not operate the pump (18) in subsequent operations.

9) Figure 9 shows a flowchart of the above-mentioned 1-liquid movement,
The micro pump computer (23) first determines whether the liquid should be moved after the pump abnormality has occurred based on the stored contents, and if the pump abnormality has occurred, the water is drained as shown in Fig. (11) and the liquid is moved. do not have. If there is no abnormality in the pump, the microcomputer (2) will check whether there is water in the water tank (15) or not depending on the open/closed state of the float switch (20).
3), and if there is water in the water tank (IS) (float switch (20>OFF), no liquid movement is performed,
Drain the water in the washing tub (3). This is a water tank (1
5) If there is dirty water in the washing tank (3), if you move the liquid from the washing tub (3), the moved liquid may become dirty and cannot be reused. If the liquid moves to the upper end of the water tank 15), water may overflow from the top, and this is to prevent this from happening.

If there is no water in the water storage tank (15) (1 coat switch (20) is ON), the presence or absence of water in the washing tank (3) is determined, and if there is no water, the liquid level switch (25> OFF) is activated.
Proceed to the next process without moving the liquid. When there is water (liquid level switch (25) ON), open the connection valve (17) and
After 0 minutes, the output is sent to the drive circuit (39) and the pump is turned on (18).
Rotate in the forward direction to drain the water from the washing tub (3) into the water storage tank (15).
Move to. 10 seconds later means that during this time the connecting waterway (
16) and the pump (18) are expelled by the water transferred from the washing tank (3), and when the pump (18) is rotating, the pump is operated properly and is provided to suppress foaming caused by the air. It's time.

The liquid level switch (
25) does not open, it is determined that there is something wrong with the pump, and the microcomputer (23) stores this. After the pump abnormality occurs, the connecting valve (17) is closed, the pump (18) is stopped, and the water in the washing tub (3) is drained by opening the tJF water valve (10). The pump (18) will no longer operate.

When the liquid is transferred after the second rinsing process, that is, when the rinsing water is moved from the water tank (15) to the water tank (15), and the rinsing switch knob <26) is set to the water injection rinsing side, or when the second rinsing If you remember that you have performed the first rinse after pouring water into the tank (this may be because you have performed the first rinse after pouring water), turn the rinse switch switch (26) after the first rinse has been completed.
) may be set to the rinsing side, so if you rinse with water, the microcomputer (23
) to remember this.) Perform the following actions. When the liquid level switch 25) opens the connecting valve <17> within 55 seconds, the pump (18) rotates forward until 55 seconds have passed, and the connecting valve (17) remains open. When the liquid level switch (25) opens after 55 seconds, the pump (18) is stopped and the connecting valve (1) is opened.
7> Close. In either case, the connecting valve (1
7) to keep the pump (18) stopped.

As seen above, the normal liquid movement outside is the liquid level switch/chi (25).
15 seconds after the valve is opened, the connection valve (117) is closed, the pump (18) is stopped, and this state is maintained for 45 seconds, and then the connection valve (17) is opened for 10 seconds, and the pump (18) is closed.
8) in the forward direction to drain the water seeping from the clothes into the water tank (1).
5). In other words, even if there is no liquid in the washing tank 11 (3) (outer tank (2)), the clothes still contain the liquid, so the liquid seeps out of the clothes for 45 seconds and is returned to the water tank (15). ) for reuse.

In addition, when pressure water rinsing is performed in the second rinse, there is a lot of water in the washing tank (3) due to water pouring. (
15) may overflow, the connection valve (17) may overflow.
) is opened and 55 seconds have elapsed, the connecting valve (17) is closed to stop the pump (18).

Next is water storage Fl! The process of automatically cleaning the tank 1 (15) will be explained based on the flowchart shown in Fig. 10. To clean the tank, the microcomputer (23) first determines based on the stored contents whether or not an abnormality has occurred in the pump, and if it has occurred after the abnormality has occurred in the pump, the tank cleaning proceeds to Execution-H. If there is no abnormality in the pump, check with the flow 1 switch (20) and the liquid level switch (25) that there is no water in the water tank (15) and that there is water in the washing tank (3). , open the connecting valve (17).By opening the connecting valve (17), water moves from the washing tub (3) to the water storage tank (15), and as explained in the above-mentioned liquid movement, first, the connecting waterway (16) moves to the water tank (15) side. ) and the pump (18), output to the drive circuit (39) 10 seconds after opening the connecting valve (17), and rotate the pump (18) in the forward direction. Open.The forward rotation of the pump (18) stirs the water transferred to the water tank (15) and washes away the dirt that has adhered to the water tank wall.The pump (18) continues until the liquid level switch (25) is opened. Driven.Unlike liquid transfer, υto water valve〈10)
Since the valve remains open, the water in the water storage 1W (15) drains into the connecting waterway (16) after the bomb 18) stops.
0). This operation allows water storage fit (
15) (especially the lower part), connecting waterways <16> and pumps (18)
) will be automatically cleaned.

If the liquid level switch (25) does not open even if the pump (18) continues to rotate forward for 3 minutes, the microcomputer (
23) determines that there is an abnormality in the pump and stops the pump (18). During the drainage process and dewatering process after loading and unloading, the connecting valve (17) is kept open as will be described later.
The water with dissolved dirt in the water tank (15) is drained away during drainage and dewatering and does not remain in the water tank.

Next, the drainage process will be explained based on FIG. (11).

During the draining process, if the microcomputer (23) remembers that it is after the tank cleaning process, the drain valve (1
At the same time as opening the water tank (17), open the connecting valve (17) and open the water tank (17).
5) will also be drained. Drainage is continued until 1 minute 15 seconds have passed after the liquid level switch (25) is opened, but draining is continued for 2 minutes 3 minutes.
If the liquid level switch (25) does not open even after 0 seconds, the microcomputer (23) determines that there is an abnormality in drainage, closes the connection valve (17) and drain valve (10), and issues a notification. The drainage abnormality is erased from the memory of the microcomputer (23) by opening the top cover (42) and once opening the cover switch (41), and the drain abnormality is erased from the memory of the microcomputer (23) by opening the cover switch (41).
), the drain will begin again.

Here, the meaning of clearing the memory of drainage abnormality by opening the upper cover (42) is as follows. The first action the user usually takes is to open the top lid (42) to take out the laundry, thinking that the washing is complete. 7 In the laundry [operation was interrupted due to water in f (3)], I realized that there was an abnormality in the lid water, and if the cause was, for example, that I forgot to turn down the drain hose, The advantage is that operation can be resumed immediately by folding down the drain hose and closing the top cover (42). The dewatering process shown in Figure (12) is also performed when the microphone 1:I computer (23) remembers that after the tank cleaning process is carried out,
During dewatering operation, open the connection: rM17) and drain the remaining water in the water tank <15). Dehydration operation should be performed first (
42) is closed and whether it is closed or not is determined by the open/closed state of the lid switch (41)2.Only when the lid is closed (lid switch (41) ON), the drain J + operation Thor
Noid 12> is activated to open the water valve (10), release the brake, and switch the flag to dehydration, and at the same time, energize the clockwise rotation drive circuit 37) to allow the motor (7) to rotate. Rotate 3). The motor (7) stops rotating when the remaining operating time for dewatering reaches 30 seconds, and the solenoid (12) is cut off to suppress noise when the brake is applied.

The glue cent dewatering process in Figure (13) is a combination of the above-mentioned draining process and dehydrating process, and the liquid level switch (25)
When the is opened (reset 1-), dehydration operation begins.

The reversal in Fig. (14) is that in the push washing course selected by the course selection/start switch (33), the drive circuit (37) is first energized for 12 seconds to rotate the motor (7), that is, the rotary blade (6) clockwise. After stopping for 07 seconds, the drive circuit (38)
Basically, the cycle is repeated six times, in which the motor (7) is energized for 12 seconds, allowed to rotate counterclockwise, and then stopped for 69 seconds. Other course selection start switch (28
) to (32), the drive circuits (37) and (38) run for 1.2 seconds each with a 07 second stop.
energize and reverse the motor (7). Although not shown in the flowchart, if the rinse switching knob (26) is set to the water injection rinsing side during the rinsing process, the water supply valve (35) is opened simultaneously with the reversal to perform water injection rinsing.

Next, according to the flowcharts in Figures (5) to (7),
The overall operation of the water tank washing machine of this embodiment will be explained.

When the power switch (22) is turned on, the microcomputer (23) starts operating, resets the output terminal of the microcomputer, and then clears the internal data write memory (RAM) to return to the initial state. When any of the course selection/start switches <28) to (33>) is input, the course corresponding to this input is set.Then, within 3 seconds, a new course selection/start switch (
If any of 28) to (33) are not input, operation will start on the set course, and after that inputs to start switches (28) to (33) will be accepted, but the course cannot be changed. .

Another start switch (28) to (33) within 3 seconds
(7) If any of the inputs is completed, a course based on this new start switch is set. If the same start switch (28) to (33) is pressed twice within 3 seconds, the careful course will be activated, and the washing process time, rinsing process time, and dehydration process time can be set longer. Set the usage switching swing (34) to the (water tank) drain position, and turn the start switches (28) to (33).
If you press any of the buttons, the (water tank) drainage course will be set.

First, we will explain the (water tank) drainage course. This drainage course opens the connecting valve (17) and the water valve (10), opens the upper lid (42), and switches the lid switch (41).
is open and the liquid level switch <25) is open (
If there is no water in the washing tub (3), open the water supply valve (35) for one minute after the start of operation and supply water from the water supply port (36). If you connect an external hose to the water supply port (36) here, this port will lead water to the water tank (15) side, allowing you to easily clean the dirt in the water tank (15) that did not come off during the tank cleaning process described above. You can do that. The water that has been introduced into the water storage tank (15) can be immediately drained because the connecting valve (17) and the drain valve (10) are open. Of course with this pose Kou 7111
The inside of the tank (3) can also be easily cleaned.

The reason why the water supply valve (35) is opened only when the liquid level switch (25) is open is because there is liquid in the washing tub (3), and if the drain hose is forgotten to be turned down, the water supply valve (35) is opened only when the liquid level switch (25) is open. mouth(
36) Water may overflow when water is supplied from the tank, so this is for safety reasons.

Also, if the top lid (42) is closed and the lid switch 41) is closed, the water supply valve 35) will not open, so the water tank (15) will not open.
It is possible to perform only drainage of water and washing 7IlWJ (3).

The connection 117) and the drain valve (10) are closed after 3 minutes, and the buzzer (43) is sounded to notify the end of the (water tank) water course.

Next, since the push washing course is special, we will explain other normal washing courses (fully automatic course, semi-automatic -1-step, wash only course, rinse dehydration course, dehydration only course).

First, determine whether the set course is the Sugi dehydration course or the dehydration only course, and if the dehydration only source is selected, select the
7) Proceed to the final dehydration shown in the figure. If neither course is selected, perform the liquid return process shown in Figure (8), and then
), if there is water, move it to the washing tub (3). When the liquid level switch (25) is opened, it is determined whether it is a careful course or a standard course, and the washing process is performed by reversing the washing process as shown in Fig. 14 for 15 minutes in the case of the careful course and 10 minutes in the case of the standard course. That is, the rotor (6) is rotated left and right for 12 seconds with a 0.7 second stop.

When the reuse selector switch (34) is in the soap water reuse position after the end of the washing process or at the start of the rinse/dehydration course, perform the liquid movement shown in Figure (9),
Move the water to the water tank <15) side. In the case of a simple washing course, after the washing process is executed, a buzzer (43) is sounded to notify the end of the washing process.

Reuse switch at the end of wash only course <34)
If the machine is in the water reuse position, after moving the liquid, proceed to the dewatering stage shown in Figure (12) for 1 minute and 30 seconds and end the operation.This will dehydrate the laundry. You can take it out when it's wet, and you won't have to get your hands wet.

Then, another piece of laundry can be put into the washing tub and the soapy water transferred to the water storage tank <15) can be reused and washed by returning it to liquid form.

In the case of only the wash cycle, as mentioned above, the operation is stopped with the liquid left in the washing tub, so the atoms that take out the laundry inside get wet, but the liquid does not move or return, so the operation is stopped. It can save time.

In cases other than the above, drain the water in the washed area (11) and dehydrate as shown in Figure (12) for 1 minute and 30 seconds, and then proceed to the first rinsing process. If there is water in the water tank (15) when draining starts (float switch (20) is OFF), the connecting valve (17) is also opened during the draining and dewatering, and the water in the water tank (15) is Drain.

The first rinse is for 2 minutes after water supply (14)
The process can be completed by reversing the figure, and after completion of the process, if the reuse selector switch (34) is in the rinse water reuse position in a course other than the rinse water dehydration course, perform tank cleaning as explained in Figure (10). Clean the water tank (15).

What this means is that when rinsing water is reused, the water in the washing tub at the end of the second rinsing process is transferred and stored in the water tank, but at the end of the first rinsing process Instead of draining the water in the washing tank into the sail, use it to clean the tank and clean the water tank as much as possible so that the water that should be stored after the second rinsing process does not get dirty in the tank. It's for a reason.

The reason why the tank is not cleaned in the case of the Sugi dewatering course is that abnormalities in drainage, such as the water hose not being turned down, may not be discovered if the tank is washed.

In other words, the rinsing and dewatering course is to execute the range shown in the process diagram in Figure (4), but at the start of execution, the washing tub (
If there is no liquid in 3), you will not be able to find any abnormalities in the drainage during the first rinsing process or dehydration, and even if you clean the tank after the first rinsing, there will still be abnormalities in the drainage. cannot be discovered. (When cleaning the tank, the pump (
At step 18), the liquid is forcibly transferred from the washing tub to the water tank, so the liquid level switch (25) is opened, and at that point, it is recessed!・Proceed to dehydration.

In other words, the washing tub simply rotates with water separated into the washing tub and water tank. ) If the second rinse is performed in this state by pouring water, water may overflow from the washing tank (3). Therefore, in the case of the Suzugi dehydration course, without cleaning the tank, the process proceeds to the reset dehydration shown in Figure <13) for 2 minutes, so that any abnormality in the drainage can be detected. These two minutes are when the liquid level switch (25) is opened (
This is the time since the reset).

Next, water is supplied and the process proceeds to the second rinse. For this rinsing, the above-mentioned inversion is performed for 3 minutes in the careful course and 2 minutes in the standard course.

When the second rinsing process is completed, as shown in the flowchart in Figure (7), in the case of the semi-automatic course, water is stored in the washing tub (3) and the operation is ended, and the microcomputer (23) detects the abnormality of the pump. If there is memory, it will be notified, and if not, it will sound the buzzer (43) to notify the end and then return to the initial state. The buzzer in case of a pump abnormality sounds intermittently for 10 seconds at short intervals compared to the buzzer in the case of course completion, and after 10 seconds, an indicator lamp (not shown) continues to blink.

If it is not a semi-automatic course but a fully automatic course or a dehydration only course, proceed to the final dehydration process. This is cent dehydration, but if the reuse selector switch (34) is in the rinse water reuse position before performing this resetting/total deicing, the liquid is transferred and Transfer the rinse water in (3) to the water tank (15).

On the other hand, when the reuse selector switch (34) is in the no reuse position (the flowchart indicates that neither rinse water nor soap water is reused), tank cleaning is performed. This is the reuse switch (3) mentioned above.
4) When the washing tank is in the position of rinsing water reuse, the liquid in the washing tank is used for washing the tank instead of draining it into the sail, similar to the tank cleaning performed after the first rinse cycle. This is done to remove as much dirt as possible from the water tank (15) and connecting waterway (16). The water after the final rinsing process is used here because this is the cleanest water.

The final glue cent dehydration time is 5 minutes and 3 minutes in the careful course.
0 seconds, and 3 minutes 30 seconds on the standard course. When the operation is finished, the microcomputer (23) will notify you if it remembers that there is something wrong with the pump, and if it does not, it will sound the buzzer (43) to notify the end and return to the initial state.The above is a normal washing cycle. It is.

The special washing cycle, the push wash cycle, is used to wash delicate fabrics such as sweaters and blankets.

(f) Effects of the Invention The washing machine with a water storage tank of the present invention has a connecting valve that opens and closes this waterway in a connecting waterway that communicates the bottom of the washing tub and the bottom of the water storage tank, and a connecting valve that supplies water from the washing tub to the water storage tank. A pump is provided to
This connecting waterway was connected to the υ1 waterway via the drain valve of the fk washing tank, and the reuse selection means (reuse selector switch) was used to select to store the liquid after the second and subsequent rinsing cycles in the water tank. In such cases, after completing the rinse process prior to this rinse process, first open the connecting valve, drive the pump after a predetermined delay, open the drain valve, and continue to open the drain valve even after the pump has stopped to perform the tank cleaning process. Therefore, by executing this tank cleaning process, the water from the rinsing process that is discarded, rather than the water that should be stored, can be used effectively to automatically wash the stored water +1 without getting your hands wet. This is the only thing you can do to keep your water tank clean.

[Brief explanation of the drawing]

The drawings show a washing machine with a water storage tank according to the present invention, in which Fig. 1 is a front vertical sectional view of the whole, Fig. 2 is a front view of the front panel of the control box, Fig. 3 is a schematic diagram of the control circuit, and Fig. 4 is a front view of the front panel of the control box. The figure is a process diagram, and Figures 5 to 14 are flowcharts showing the flow of operations. Figures 5 to 7 show the general flow, and Figures 8 to 14 show the detailed flow. <3)...Washing tank (15)...Water tank (16)
... Connecting waterway (17)... Connecting valve (18)...
Pump (10)...Drain valve 11>...Drain channel
(34)...Reuse selection switch (reuse selection means) Figure 1 Figure 10 Figure 13 Figure 14

Claims (1)

[Scope of Claims] ■ A washing machine that automatically controls at least two rinsing steps of washing and is provided with a water storage tank for storing liquid in the washing tub for reuse, where the bottom of the washing tub is and the bottom of the water tank are connected through a connecting waterway, and a connecting valve for opening and closing the waterway and a pump for sending water from the washing tank to the water tank are provided in the waterway,
Reuse selection means is provided for communicating the connecting waterway with a drainage channel through a drain valve of the washing tub, and selecting which cycle of liquid in the washing tub should be automatically transferred to a water storage tank; When the selection means selects to transfer the liquid in the washing tub after the second and subsequent rinsing steps to the water storage tank,
After the rinse stroke prior to the selected rinse stroke is completed, the connecting valve is opened, the pump is driven after a predetermined time delay, the drain valve is opened, and the drain is continued to be opened even after the pump is stopped. A washing machine with a water storage tank characterized by: (2) The washing machine with a water storage tank according to claim 1, characterized in that the connecting valve is continuously opened during the draining or dewatering process after the tank cleaning process.