JPH09201483A - Drum type full automatic washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To do without doing over again washing a matter left as unfinished or a matter forgot by additionally and safely putting the matter to be washed in a washing machine by providing the machine with a water level controller for adjusting the water level lower than an input port according to a detecting signal of a level detector. SOLUTION: Pushing an addition switch on a operation panel 20, a controlling unit 21 adjusts a deviation of the washing materials in the drum 2 and lowering the water level under lowering the speed of reciprocal revolution of a motor 15, and detects the water level condition at an input port 4a from the weight of the washing material previously weighed and a pressure switch 24 and judges whether the opening of a door 23 is possible or not. If the water level is over the input port 4a, the water is discharged and the door lock is released after confirming the stopping. Thereby washing material can be safely and surely added and rewashing caused by the putting in left can be prevented and trouble of a user and water consumption and time can be saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type fully automatic washing machine for storing laundry in a drum which is driven to rotate about a horizontal axis and washing, rinsing and drying the laundry. It relates to door opening / closing control.

[0002]

2. Description of the Related Art In a fully automatic drum-type washing machine, as described in Japanese Utility Model Laid-Open No. 5-35091, a user should not inadvertently open a door (a door for opening or closing a clothes inlet) after starting operation. The door is locked by the door lock mechanism and the operation is started.

When the user opens and closes the door by adding laundry, he or she selects an operation stop switch to stop the operation of the main body. The control device detects the water level in the water tank from the water level detection means and unlocks the door when it judges that the water level is below the clothing inlet. The user opens the door, adds laundry, and then closes the door again to start driving, thereby returning to normal driving operation. Further, if the water level detecting means determines that there is washing water above the laundry inlet, the door lock is not released.

As described above, conventionally, the opening / closing of the door is decided depending on the presence or absence of the washing water. Therefore, if the washing water is poured in the initial stage and the washing water is above the laundry inlet, the door is opened. It was locked and could not be opened / closed, so laundry could not be added. Also,
The structure was such that the user could not perform additional operations on the laundry.

[0005]

As described above, in the conventional fully automatic washing machine of the drum type, once the user stores the laundry in the drum and starts the operation, additional laundry is not added during the operation. Very difficult. In addition, the washing machine itself determines the water level based on the amount of washing, and if the washing water comes to the upper part from the inlet, the user cannot add more water, and there is a problem that there is no corresponding method or means. .

In view of the above problems, the present invention makes it possible to forget to add laundry or to add additional laundry, and the washing machine main body
Since the amount of laundry is correctly determined and the door is opened / closed, it is possible to add additional laundry accurately and safely without any trouble, and it is possible to avoid having to re-launch new laundry due to leftover laundry or forgetting. It is an object to provide a drum type fully automatic washing machine that can contribute to not only reducing the labor and time of the operator but also reducing the amount of water and detergent used.

[0007]

In order to solve the above-mentioned problems, the present invention has the following constitution. According to the invention of claim 1, a water tub elastically supported in the main body of the washing machine, a loading port for the laundry opened on the front side of the water tub, and a loading port corresponding to the loading port are opened in the water tub. A drum that is arranged and rotatably supported and has a large number of small holes in its peripheral wall, a door that opens and closes the opening of the water tank, a drive unit that rotates the drum, a water supply unit into the water tank, and drainage. In a fully automatic drum type washing machine that includes a section for performing washing to drying in the drum, a water level detecting section for detecting the water level in the water tank, and a door closing holding section for holding the door closed. A drum type fully automatic washing machine comprising: a water level control unit that controls the water level below the laundry inlet based on a detection signal from the water level detection unit.

According to a second aspect of the present invention, there is provided a water tub elastically supported in the main body of the washing machine, a laundry inlet opening on the front side of the water tub, and an inlet corresponding to the inlet in the water tub. A drum, which is opened and is rotatably supported and has a large number of small holes in its peripheral wall, a door that opens and closes the opening of the water tank, a drive unit that rotates the drum, and a water supply unit into the water tank. In a fully automatic drum-type washing machine that includes a drainage section and a washing process to a drying process in the drum, a rotation control unit that controls rotation / stop and a rotation direction of the drum by a drive unit, and a rotation of the drum. When the detected drum rotation reaches a predetermined rotation, the rotation detection section that detects the water level in the aquarium, and if the detected drum rotation reaches a predetermined rotation, after switching the drum rotation direction and detecting the decrease in the water level in the aquarium. , And the control unit that controls the stop of the drive unit. It is the drum-type automatic washing machine, characterized in that.

According to a third aspect of the present invention, there is provided a water tub elastically supported in the main body of the washing machine, a laundry loading port opened on the front side of the water tub, and a loading port corresponding to the loading port in the water tub. A drum, which is opened and is rotatably supported and has a large number of small holes in its peripheral wall, a door that opens and closes the opening of the water tank, a drive unit that rotates the drum, and a water supply unit into the water tank. In a fully automatic drum type washing machine that includes a drainage section and performs washing to drying in the drum, it has a door opening / closing switch for opening and closing the door when adding laundry, If the door opening / closing switch is selected in the rinsing step, the washing water is drained so that the water level in the water tank is lower than the laundry entry port, and a control unit is provided to release the closed state of the door after draining. It is a characteristic drum type fully automatic washing machine.

According to a fourth aspect of the present invention, there is provided a water tank elastically supported in the main body of the washing machine, a loading port for laundry opened on the front side of the water tank, and a loading port corresponding to the loading port in the water tank. A drum, which is opened and is rotatably supported and has a large number of small holes in its peripheral wall, a door that opens and closes the opening of the water tank, a drive unit that rotates the drum, and a water supply unit into the water tank. In a fully automatic drum type washing machine including a drainage section and performing washing to drying in the drum, a laundry weight detecting means for detecting the weight of the laundry is provided, and the inside of the detected drum is detected. If the laundry weight of is more than the predetermined washing capacity,
A drum-type fully automatic washing machine having a control unit for preventing an additional operation of the laundry.

According to a fifth aspect of the invention, the control operation of the control unit is
5. The door is kept closed or the user is warned by a display / warning sound.
The fully automatic drum type washing machine described in 1.

The invention of claim 6 is characterized in that the holding of the door closed state by the door closing holding portion is not released while the drum rotation signal is being detected by the drum rotation detecting portion. The fully automatic drum type washing machine described in 1.

According to a seventh aspect of the present invention, the control unit controls the rotation direction of the motor by selecting the door opening / closing button in the washing / rinsing process, and controls the draining of the washing water after detecting the decrease of the water level in the water tank. 3. The method according to claim 2, wherein
Alternatively, the drum type fully automatic washing machine described in 3 is provided.

Therefore, according to the first aspect of the present invention, when the water level in the water tank is detected and the door is held in the closed state, it is lower than the laundry inlet based on the detection signal of the water level detection section. Since the water level is controlled at the maximum, the maximum amount of washing water can be set to a position lower than the inlet to open and close the door, preventing water leakage in the aquarium due to opening and closing the door and changing the washing process. The user can add laundry at any time without doing so.

According to the second aspect of the present invention, when the drum rotation reaches a predetermined rotation, the rotation direction is switched, and for example, a few times at low speed, forward and reverse 1/4 rotation is performed, whereby the washing is biased in the drum. The items are evenly distributed around the drum, which makes it easy to load the laundry through the loading port. Further, since the drum is stopped at a place where the water level in the water tank is lowered, a large amount of laundry projects from the water surface, so that the apparent water level is lowered and it is possible to prevent the overflow of the washing water after the introduction.

According to the third aspect of the present invention, since the washing water is drained so that the water level in the water tank is below the inlet, even if the water level is above the door opening, the washing water level It is possible to lower it, and even if it was not possible to add it on the way until now, the door can be opened and closed, the amount of water can be accurately controlled, water leakage due to opening of the door can be prevented, and the washing course (selected washing You can easily add laundry without changing the procedure.

According to the fourth aspect of the present invention, the weight of the laundry is detected, and if the detected laundry amount is a predetermined amount or more, for example, half the standard washing capacity or more, the additional operation is prohibited. For example, as in claim 5, the door is kept closed or the user is notified by a display or a warning sound. That is, for example, if the detected capacity of the laundry is more than half of the standard capacity, the additional switch operation is prohibited. Here, if the laundry capacity is more than half of the standard capacity, the laundry containing water is located above the insertion port, and water from the laundry may leak out of the main body. In addition, the insertion port is blocked with laundry, making it very difficult for users to enter,
There was a possibility that the washing water and rinsing water would get on the user. As described above, when the capacity is increased, a problem occurs and the advantage for the user is lost. In order to prevent this, when the capacity is large, additional charging is prohibited, and in order to inform the user that the additional operation cannot be performed, a display and a warning buzzer are used.

According to the sixth aspect of the present invention, since the closing and holding of the door is not released until the rotation signal of the rotation detecting portion of the rotary drum disappears, it is possible to prevent a trouble caused by handling by the user.

According to the seventh aspect of the present invention, when the water level is above the door opening, the laundry is drained by rotating the drum in the forward and reverse directions so that a large amount of the laundry is projected on the water surface.
The water level on the door opening can be lowered to the maximum, the washing water to be drained can be minimized, and waste water can be reduced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are explanatory views of a drum type fully automatic washing machine according to an embodiment of the present invention, FIG. 1 is a vertical cross-sectional view of the washing machine in a front view, and FIG. 2 is a vertical cross-sectional view in a side view.

In the figure, 1 is a washing machine main body, 2 is a rotating drum, 3 is a stirring baffle, 4 is a water tank, 5 is a high pressure hose,
6 is a water supply valve, 7 is a circulation duct, 8 is a drain duct, 9 is a filter case, 10 is a circulation pump, 11 is a drain valve, 1
2 is a drain hose, 13 is a drying unit, 14 is a rotating shaft,
15 is a drum pulley, 16 is a motor, 17 is a belt, 1
8 is a support lot, 19 is an installation foot, 20 is an operation panel, 2
1 is a control device, 22 is a detergent case, 23 is a door, and 24 is a pressure switch.

The washing machine is substantially a rectangular parallelepiped as a whole, and a washing drum body 1 is provided with a rotating drum 2 and a water tank 4 each having a substantially cylindrical shape with a short axial direction. The rotary drum 2 has a rotary shaft 14 arranged substantially in the horizontal direction, and one end in the direction along the rotary shaft 14 (the end opposite to the rotary shaft) serves as a laundry inlet 2a. ing. In addition, the water tank 4 also has an inlet 4 for laundry corresponding to the inlet 2a for the rotary drum 2.
a is formed. Further, a charging port 1a is formed in the front surface of the washing machine body 1 at a substantially central portion corresponding to the charging ports 2a and 4a.

The washing machine main body 1 input port 1a and the water tank 4 input port 4a are opened and closed by a door 23. Then, a sealing material 1b made of an elastic material such as rubber is fitted in inner peripheral edge portions of the washing machine body 1 inlet 1a and the water tub 4 opening 4a. Therefore, when the door 23 is closed, the sealing material 1b is squeezed between the peripheral edge of the door and the inner peripheral edges of the inlets 1a and 4a so that the watertightness of the washing machine body 1 and the water tub 4 is maintained. Has become.

The rotary drum 2 accommodates laundry and rotates. The rotary drum 2 has a stirring baffle 3 formed in a mountain range protruding toward the central axis.
The rotary drum 2 is provided with a large number of water passage holes 2b that open from the inner peripheral portion toward the outer peripheral portion.

The water tank 4 is provided so as to surround the rotary drum 2 and stores washing water (including detergent-containing water and rinsing water). This washing water passes through the high pressure hose 5 connected to the water supply, and the water supply valve 6 opens and closes the water supply line 6
It is supplied into the water tank 4 via a (see FIG. 2) (specifically, it is supplied into the water tank 4 via the flow path 22a after once entering the detergent case 22). Further, the water supply valve 6 also has a switching mechanism for sending tap water into the drum circulation duct 7 so that the cooling / drying / dehumidifying cooling water is showered in the drum circulation duct 7.

At the bottom of the water tank 4, a drainage duct 8 for discharging the washing water in the water tank 4 is provided, and the drainage duct 8 removes foreign matters such as lint and dust contained in the drained washing water. The filter case 9 is connected. The filter case 9 includes a circulation pump 10 for circulating the washing water in the water tub 4 and a drain valve 1 for draining the washing water in the water tub 4 to the outside of the washing machine.
1 is connected.

When circulating the washing water stored in the water tank 4, the washing water in the water tank 4 is returned from the drainage duct 8 to the water tank 4 by the circulation pump 10 after passing through the filter case 9 to remove impurities. . The wash water is returned from the circulation pump 10 into the water tank 4 by the circulation pipe 10a opening in the seal material 1b near the water tank 4 input port 4a. Also,
When draining the wash water in the water tank 4, the wash water is drained from the washing machine main body through the drain valve 11 branched from the filter case 9 through the drain hose 12.

A drying unit 13 and a circulation duct 7 are provided in the main body 1 of the washing machine to dry the laundry. The circulation duct 7 is a duct whose one end and the other end communicate with the upper end and the lower end of the water tank 4, respectively, and the water for drying and dehumidifying is supplied from the water supply valve 6 through the water pipe 6b (see FIG. 1). It is supposed to enter. In addition, the drying unit 13
Is provided in the middle of the air flow path of the circulation duct 7 and is composed of a heater and a fan, and sends warm air into the water tank 4 through the circulation duct 7 by blowing air. That is, the water evaporated from the laundry is dehumidified by tap water in the circulation duct 7 and passes through the drying unit 13 again to dry the laundry with warm air.

A rotary shaft 1 that penetrates the center of the water tank 4 and is horizontal to the center of rotation of the drum 2 and at the end opposite to the charging port 2a.
4, a drum pulley 15 is fixed to the rotary shaft 14. A drum driving motor 16 is provided at the lower end of the water tank 4.
The rotating shaft of 6 and the drum pulley 15 are connected by a belt 17. The water tank 4, the rotating shaft 14, the drum pulley 15, the drum driving motor 16 and the like are housed in the washing machine main body 1.

In order to absorb the vibration, the water tub 4 is suspended from the washing machine main body 1 by a support lot 18 having a vibration-proof function at a plurality of positions to hold the water tub 4 and damp the vibration. A plurality of installation feet 19 are provided on the bottom surface of the washing machine body 1, and the installation feet 19 support the washing machine body 1.

Further, on the front upper part of the washing machine body 1, a panel input section 20a such as a start / stop switch, an additional switch (corresponding to a door opening / closing switch), and various operation switches is provided.
In addition, the operation panel 20 provided with the display unit 20b such as a display lamp is installed. A control device 21 for electrically controlling the washing machine is provided inside the operation panel 20.
The signal line from the operation panel 20 is connected. Control device 2
1, a door switch for detecting opening / closing of the door 23, a pressure switch 24 for detecting the water level in the water tank 4 by water pressure, and an output signal line of a tachometer 16a for detecting rotation of the motor 16 are connected.

FIG. 3 is a circuit block diagram of the control device 21 of the drum type fully automatic washing machine. As shown in FIG. 3, the control device 21 mainly includes a power supply unit 30, a display unit 20b, a panel input unit 20a, a signal input unit 31 such as a door switch, a control unit 32, an output unit 33, and a load unit 34. .

The commercial power source is input from the outlet plug 35 through the power switch 36 to the power source section 30 to transform and rectify the AC power source and output the DC power source for control and oscillate and output the clock pulse. . The display unit 20b is
In addition to the indicator lamp, a buzzer sounds.

The control unit 32 is mainly composed of a microcomputer (hereinafter referred to as a microcomputer) to make a judgment / command regarding the operation of the washing machine, and has a calculation / storage unit. The output unit 33 includes a semiconductor device including a triac that outputs a drive signal according to a command from the control unit. The load section 34 operates by the drive signal of the output section, and the drying unit 13, the water supply valve 6, the drain valve 11, the door lock mechanism (operation solenoid, etc.) 37, the operation relay 38 (coil 38a, coil 38a, Contact 38
b).

Next, the operation control of the drum rotary type fully automatic washing machine of the embodiment will be described with reference to FIGS. According to this fully automatic washing machine, when the laundry is stored in the drum 2 and the door 23 is closed and the operation is started, the door lock mechanism 37 provided in the main body works and the door 23 is locked, and the laundry is washed. Judge the weight. Conditions such as washing and rinsing time and water level are set by judging the weight of the laundry.

When the user pushes an additional switch on the operation panel 20 to add laundry to the drum,
The control device 21 determines the state of each detection unit. Further, in order to lower the unevenness and the water level of the laundry in the drum 2, the motor 16 is rotated forward and backward at a low speed to make a correction, and the laundry weight and the water level state of the water tank inlet 4a are detected from the pressure switch 24 detected in advance to detect the door. It is determined whether 23 can be opened and closed.

If the water level is above the water tank inlet 4a, the wash water is drained, and the signal from the tachometer 16a is constantly monitored until the door is unlocked, and the stop is confirmed and the door is unlocked.

The operation of the above washing machine will be described in detail with reference to the flowchart of FIG. The procedure of the flowchart in FIG. 4 is stored in the form of a program in the microcomputer in the control unit 32 in the control device 21.

The user stores laundry in the drum 2, selects a washing course from the operation panel 20, and presses the operation switch to start the operation. The control device 21 locks the door 23 to prevent the door 23 from being opened and closed, detects the weight of the laundry stored in the drum 2, and stores it in the storage unit inside the microcomputer.

Here, as a method of measuring the laundry, generally, the time from the activation of the motor 16 until the constant rotation speed is reached and the power of the motor 16 from the high-speed rotation are cut off to make the rotary drum 2 inertial. The amount of stored laundry is detected from the relationship with the time of rotation. In this case, the longer the rising time to the constant rotation and the time the rotating drum 2 continues to rotate due to inertia, the larger the amount of laundry, and conversely, the shorter the time, the smaller the amount of laundry. The data can be stored in the microcomputer in advance, and the laundry weight can be easily obtained by detecting the time during which the laundry continues to rotate.

This operation detects the amount of laundry and the control device 2
At 1, the washing water suitable for the amount of laundry is supplied into the water tank 4.
However, when the amount of water supply increases, the wash water reaches the upper part of the inlet, and the door 23 cannot be opened or closed during operation. In order to avoid this situation, the maximum level of washing water is set lower than the inlet.

FIG. 5 shows an example of the water level in the washing tub 4,
FIG. 6 is a table showing the correspondence between the washing amount of the rotary drum 2 and the water supply level.
If the laundry weight is, for example, 60% or more of the standard laundry capacity, water is supplied to a high water level up to the water level "A" in FIG. If it is 40% or more of the standard washing capacity, water is supplied to the middle water level up to the water level "B". Also, the standard washing capacity of 2
If it is 0% or more, water is supplied to a low water level up to the water level "C" in FIG.

Further, the water supply level is changed from the air trap 24a provided in the filter case 9 to the pressure switch 24.
And water is supplied up to the amount of water that matches the amount of laundry. When the water supply is completed, it will be operated according to the washing course selected by the user.

As shown in FIG. 4, when the user selects the laundry addition switch, an intermediate addition operation is started (step (hereinafter abbreviated as S) 1). When the additional switch is selected, the control device 21 sends a signal to turn off the drum drive motor 16 to the output unit 33 to activate the actuation relay 38 to shut off the energization of the drive motor 16. The drive motor 16 continues to rotate for a while due to the inertia of the drum 2 and the internal laundry,
The rotation is monitored by the tachometer 16a provided inside the motor as a signal to the control device 21 to determine whether or not the drum 2 has stopped (S3).

When the rotation signal from the tachometer 16a disappears, the control device 21 determines that the drum 2 has stopped, and performs an operation of correcting the unevenness of the laundry (S4). The correction operation of the laundry in the drum 2 will be described with reference to FIG. For example, FIG.
(A) is a case where the additional switch is pressed and the drum 2 is stopped while rotating in one direction (clockwise rotation in the figure), and the laundry in the drum 2 (indicated by reference numeral 39)
Is biased to the left, and the laundry 39 comes to the center of the drum 2 and to the left. In this state, since the laundry 39 comes near the input port 2a, it is difficult to put the laundry 39 therein. Therefore, in order to avoid this, the control device 21 performs the operation of correcting the unevenness of the laundry 39 by the forward rotation and the reverse rotation of the drum 2.

That is, in the control device 21, the drive motor 1
6 is rotated at a low speed, and a tachometer 16 provided on the motor
The rotation signal (pulse) of a is read, and the drum 2 is rotated 1/4 rotation. For example, if the tachometer 16a has 8 poles,
When the motor ratio is 12: 1, the control device 21 determines that it has rotated 1/4 when reading a signal of 24 pulses [(12/4) * 8]. Then, the polarity of the motor 16 is switched by the relay 38 in order to rotate the rotation direction of the motor 16 in the opposite direction to the conventional direction. Such a normal / reverse correction operation is performed several times until the water level in the water tank 4 decreases, and
The state of (b) is set.

By the above correction operation, the water level is lowered by putting more laundry on the water surface than the water surface, and the rise of the water level after the laundry is added is controlled. For safety, the control device 21 confirms the current water level and determines whether to unlock the door (S5). It is determined whether or not the water level in FIG. 5 is "A" or lower.

However, there is a case where a substance whose water content is not absorbed due to the laundry substance raises the water level and comes above the charging port 2a. In this state, since the door cannot be opened and closed, the control device 21 corrects the unevenness of the laundry 39, controls the water level in the water tub 4 to be lowered as much as possible, opens the drain valve 11 to remove the wash water in the water tub 4 from “A” in FIG. Drain up to the water level below the main body (S6). Then, when the water level becomes equal to or lower than "A" due to the drainage, the drainage valve 11 is stopped (S7), the door is unlocked (S8), and the door can be opened and closed.

After the door 23 is opened and the laundry is stored (S9),
When the door closing is inspected by the door switch (S10) and the operation switch is turned on to start the operation (S11), the control device 21 injects water to the water level level before draining and returns to the state before the operation interruption to start the operation course. Continuing (S12).

Here, when the operation is started, the control device 21
Is locked in the door and the weight is detected, and is stored in the storage unit inside the microcomputer. The stored data is used as the amount of wash water and the data of additional input. That is, when the user selects the laundry addition switch, an intermediate addition operation is started, and the control device 21 determines whether the stored data can be added. For example, if the detected amount of laundry is more than half of the standard capacity, the control device 21 determines that it cannot be added (S2: No), displays that addition is not possible on the display unit, and notifies the user with an alarm buzzer. Notify that you cannot do it (S
13).

As described above, according to the fully automatic washing machine of the embodiment, the inlet 1a,
Water leakage from 4a can be prevented, additional laundry can be added accurately and safely, rewashing due to forgetting to put in can be prevented, and the user's time and labor can be saved and time is saved.

[0052]

As is apparent from the above description, the present invention has the following effects. (Invention of Claim 1) Conventionally, when a user puts in laundry and starts operation, laundry can be added until the end of operation, and since laundry cannot be added in the middle of the operation, laundry can be washed again by forgetting to put it in. There was only a way to do it again. On the other hand, according to the washing machine of the first aspect of the present invention, the amount of laundry and the amount of washing water are detected, and the maximum amount of washing water is set at a position lower than the input port, so that the door can be opened and closed. Also, it is possible to prevent water leakage in the water tank due to opening and closing of the door, and allow the user to add laundry at any time without changing the washing process. Therefore, it is possible to save the time and effort for the unwashed portion and save water and waste time.

(Invention of Claim 2) According to the invention of Claim 2, when the drum reaches a predetermined rotation, the direction of rotation of the drum is switched, and for example, the drum is rotated a few times at a low speed in a forward / reverse 1/4 rotation. As a result, the laundry that is biased in the drum is evenly distributed around the drum, and the laundry can be easily inserted through the insertion port. Further, since the drum is stopped at a place where the water level in the water tank is lowered, a large amount of laundry projects from the water surface, so that the apparent water level is lowered and it is possible to prevent the overflow of the washing water after the introduction.

(Invention of Claim 3) According to the invention of Claim 3, even when the water level is above the door opening, it is possible to lower the water level of the washing water, and it has not been possible to add it halfway. Even in the open state, the door can be opened and closed, the amount of water can be accurately controlled, water leakage due to opening of the door can be prevented, and laundry can be added easily without changing the washing course. As a result, it is possible to prevent re-washing due to unwashed portions, save labor, and save water and time.

(Inventions of Claims 4 and 5) Claim 4,
According to the fifth aspect of the present invention, the additional switch operation is prohibited if the detected laundry amount (capacity) is equal to or more than a predetermined laundry capacity, for example, more than half of the standard capacity.
When the washing capacity exceeds a predetermined value, the laundry containing water is positioned above the insertion port, and water from the laundry may leak out of the main body. In addition, the insertion port is blocked with laundry, making it very difficult for users to enter,
There was a possibility that the washing water and rinsing water would get on the user. As described above, when the capacity is increased, a problem occurs and the advantage for the user is lost. According to claim 4 or 5, in order to prevent this, when the capacity is large, additional charging is not performed. Further, in order to inform the user that the additional operation cannot be performed, a display and a warning buzzer are used.

According to the sixth aspect of the present invention, by not releasing the lock of the closing door until the rotation signal from the drive unit disappears, it is possible to prevent a trouble caused by the user's handling. The motor drive circuit is cut off and the door is unlocked by temporarily stopping and turning the power on / off while the drum for high-speed spinning is rotating at high speed. However, even if the motor drive power is turned off, the high speed rotation is maintained due to the inertia due to the weight of the drum and the amount of laundry inside. If the door is opened or closed in this state, there is a possibility that laundry may jump out of the main body. As described above, the stop of the drum rotation is monitored by the signal from the motor and the lock is released when the signal disappears, so that it is possible to surely prevent the occurrence of the trouble.

According to the seventh aspect of the invention, when draining the washing water when the water level is above the door opening, by rotating the drum forward and backward, a large amount of the laundry is projected above the water surface.
The water level on the door opening can be lowered to the maximum, the washing water to be drained can be minimized, and waste water can be reduced.

[Brief description of drawings]

FIG. 1 is a configuration explanatory view of a fully automatic washing machine according to an embodiment of the present invention, which is a vertical cross-sectional view when viewed from the front.

FIG. 2 is a vertical cross-sectional view of the fully automatic washing machine of FIG. 1 as viewed from the side.

FIG. 3 is a circuit block diagram of a control device of the fully automatic washing machine in FIG.

FIG. 4 is a flowchart of an operation control procedure of the fully automatic washing machine of FIG.

FIG. 5 is a cross-sectional view showing an example of the water level in the washing tub.

FIG. 6 is a table showing the correspondence between the washing amount of the rotary drum and the water supply level.

7A and 7B are explanatory views of the uneven correction of the laundry, wherein FIG. 7A is a view before correction and FIG. 7B is a view after correction.

[Explanation of symbols]

 1 Fully automatic washing machine main body 2 Drum (rotating drum) 4 Water tank 5 High pressure hose 6 Water supply valve 7 Circulation duct 8 Drainage duct 10 Circulation pump 11 Drainage valve 12 Drainage hose 13 Drying unit 20 Operation panel 21 Control device 23 Door 24 Pressure switch 30 Power supply unit 31 Signal input unit 32 Control unit 33 Output unit 34 Load unit 37 Door lock switch 38 Actuating relay 39 Laundry

Claims (7)

[Claims] 1. A water tank elastically supported in the main body of the washing machine,
A laundry inlet opening on the front side of the water tub and an inlet corresponding to the laundry inlet are arranged in the water tub, and are rotatably supported and have a large number of small holes in the peripheral wall. A drum-type fully automatic system that includes a drum, a door that opens and closes an opening of the water tank, a drive unit that rotates the drum, a water supply unit into the water tank, and a drainage unit, and performs washing to drying in the drum. In the washing machine, a water level detection unit that detects the water level in the water tank, a door closing holding unit that holds the door closed, and a detection signal from the water level detection unit A drum type fully automatic washing machine having a water level control unit for controlling the water level. 2. A water tank elastically supported in the main body of the washing machine,
A laundry inlet opening on the front side of the water tub and an inlet corresponding to the laundry inlet are arranged in the water tub, and are rotatably supported and have a large number of small holes in the peripheral wall. A drum-type fully automatic system that includes a drum, a door that opens and closes an opening of the water tank, a drive unit that rotates the drum, a water supply unit into the water tank, and a drainage unit, and performs washing to drying in the drum. In the washing machine, the rotation control unit that controls the rotation / stop and rotation direction of the drum by the drive unit, the rotation detection unit that detects the rotation of the drum, and the water level detection unit that detects the water level in the aquarium are detected. When the drum rotation reaches a predetermined rotation, the drum type fully automatic, characterized by having a control unit for switching the drum rotation direction and for controlling the stop of the drive unit after detecting a decrease in the water level in the water tank. Washing machine. 3. A water tank elastically supported in the main body of the washing machine,
A laundry inlet opening on the front side of the water tub and an inlet corresponding to the laundry inlet are arranged in the water tub, and are rotatably supported and have a large number of small holes in the peripheral wall. A drum-type fully automatic system that includes a drum, a door that opens and closes an opening of the water tank, a drive unit that rotates the drum, a water supply unit into the water tank, and a drainage unit, and performs washing to drying in the drum. The washing machine has a door opening / closing switch that allows the door to be opened / closed when adding laundry, and if the door opening / closing switch is selected in the washing / rinsing process, the water level in the water tank will be higher than the laundry loading port. A fully automatic drum type washing machine having a control unit for draining the washing water downward so as to release the closed state of the door after draining. 4. A water tank elastically supported in the main body of the washing machine,
A laundry inlet opening on the front side of the water tub and an inlet corresponding to the laundry inlet are arranged in the water tub, and are rotatably supported and have a large number of small holes in the peripheral wall. A drum-type fully automatic system that includes a drum, a door that opens and closes an opening of the water tank, a drive unit that rotates the drum, a water supply unit into the water tank, and a drainage unit, and performs washing to drying in the drum. In the washing machine, a laundry weight detecting means for detecting the weight of the laundry is provided, and if the detected laundry weight in the drum is equal to or more than a predetermined washing capacity, the additional operation of the laundry is performed. A fully automatic drum type washing machine, which has a control unit for preventing it. 5. The drum type whole apparatus according to claim 4, wherein the control operation of the control section is to keep the door closed or to warn the user with a display / warning sound. Automatic washing machine. 6. The drum type according to claim 1, wherein the holding of the door closed state by the door closing and holding unit is not released while the drum rotation signal is being detected by the drum rotation detecting unit. Fully automatic washing machine. 7. The control unit controls the rotation direction of the motor by selecting the door opening / closing button in the washing / rinsing process, and controls the draining of the washing water after detecting the decrease in the water level of the water tank. The drum type fully automatic washing machine according to claim 2 or 3.