JP3284975B2 - dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing dishes by spraying washing water onto dishes stored in a washing tank.

[0002]

2. Description of the Related Art Conventionally, a dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.

[0003] As shown in Fig. 11, a washing tank 1 accommodates tableware 2 therein, stores washing water at the bottom, and has an opening at the front. The washing nozzle 3 is rotatably supported in the washing tank 1 and jets washing water toward the tableware 2. The washing / draining pump 4 sends the washing water to the washing nozzle 3 and discharges the washing water out of the machine, and is configured to perform the washing operation by the forward rotation of the motor 5 and the drain operation by the reverse rotation. The heater 6 is disposed at the bottom of the cleaning tank 1 to heat the cleaning water.

The door 7 covers the front opening of the washing tank 1 so that it can be opened and closed forward.
The shaft 11 is attached to the bearing member 10 attached to the dishwasher body 9.
It is rotatably held through the. Further, water sealing members 12 are attached to the upper surface, left and right side surfaces of the inner wall of the opening of the cleaning tank 1,
The door 7 adheres to the lid back plate 13 attached to the door 7 in a closed state, and is sealed with water. The tableware basket 14 is for setting the tableware 2. The blower fan 15 sends outside air into the cleaning tank 1 and exhausts it from the exhaust port 16.

The operation of the above configuration will be described. When the user opens the door 7 forward, places the tableware 2 in the tableware basket 14 and stores it in the washing tank 1 and starts the operation after adding the detergent, first, a predetermined amount of water is supplied to the bottom of the washing tank 1. Water is supplied. Then, the motor 5 and the heater 6 are energized, and the washing water is spouted from the washing nozzle 3 toward the tableware 2 by the washing / drainage pump 4 while being heated, thereby cleaning the dishes.

[0006] During the cleaning, the cleaning tank 1 is
A water seal is provided between the doors 7 to prevent the cleaning water jetted into the cleaning tank 1 from leaking to the outside. After the water in the cleaning tank 1 is discharged, the outside air is sent into the cleaning tank 1 by the blower fan 15,
By energizing the heater 6, the dishes 2 and the inside of the washing tank 1 are dried.

As shown in FIG. 12, an opening / closing handle 17 is attached to the upper inside of the door 7. During operation of the dishwasher, the handle arm 18 is in the closed position shown by the solid line, the lock portion 20 of the lock lever 19 is engaged with the dishwasher body 9 and the door 7 is locked. When the door 7 is opened during operation, the micro switch 21 is turned off by moving the handle arm 18 to the open position indicated by the two-dot chain line, thereby electrically disconnecting the path.
The lock lever 19 rotates in conjunction with the handle arm,
The lock unit 20 is detached from the dishwasher main body 9 and the door 7 can be opened.

[0008]

However, in the above-mentioned conventional construction, the handle arm 18 can be seen conspicuously from the front of the product and the opening / closing operation is in the left-right direction.
The opening has a problem in that the opening area of the door closes a large area, which is inconvenient in design, and the opening / closing operation of the door 7 is separated from the start operation (pressing the start switch) of the device, resulting in poor operability. .

As a solution to this, a method of electrically locking the door 7 is conceivable. However, in this case, the unilateral control of locking the door 7 at the start of the operation and unlocking the door at the end of the operation is performed. Therefore, if the power plug is disconnected, the breaker is dropped due to an overcurrent, and a power failure occurs. In such a case, the operation ends with the door 7 locked. At this time, if you try to restart the next operation, the state will be reversed,
There was a problem that the door 12 did not open.

[0010] Further, dishwashers are increasingly being built in as system kitchens, and accordingly, there is a high possibility that children will mischief the operation unit.

In recent years, dishwashers have become more hygienic, and in order to achieve a sterilizing effect, the rinsing temperature has reached 80 ° C., and safety measures must be taken to prevent children from getting burned. It has become to. Further, the dishwasher may be connected to a water heater for both time saving and energy saving. If a water leak occurs from the water supply system of the dishwasher, the hot water is continuously stored in the washing tank 1. If the door 7 is opened in such a case, there is a danger that hot water flows down from the gap of the door 7 and burns.

The present invention solves the above-mentioned problems, and solves the problem that the door cannot be opened when the operation is terminated while the door is locked, such as when the power plug is disconnected, The first object is to improve usability.

It is a second object of the present invention to prevent unintentional opening / closing of a door due to mischief of a child as required, thereby improving safety.

It is a third object of the present invention to securely lock the door to improve safety even in an unsafe situation such as an overflow.

[0015]

According to the present invention, in order to attain the first object, the opening of the washing tank for accommodating tableware is opened and closed by a door, and the door is closed by door lock means. The door is locked and the door lock detecting means detects that the door is locked. The control means is configured to perform a series of sequential operations and to release the lock when the power supply opening / closing means for supplying or interrupting power to the load is closed, and when the door lock detection means determines that the door is locked. Things.

[0016] With this, it is possible to solve the problem that the door cannot be opened when the operation is terminated while the door is locked, such as when the power plug is unplugged, and the usability is improved. Can be.

Further, in order to achieve the second object,
The opening of the washing tank for storing the tableware is covered with a door so as to be openable and closable, the door is locked in a closed state by door locking means, and the locked state of the door is detected by the door lock detecting means. The control means performs a series of sequential operations and operates a predetermined switch on the operation means for setting the operation content.
The door is locked in a closed state by an operation of turning on a power switch while being pressed .

As a result, if necessary, it is possible to prevent unintended opening and closing of the door due to mischief of the child, and it is possible to improve safety.

In order to achieve the third object,
The opening of the washing tank for storing the tableware is covered with a door so as to be openable and closable, the door is locked in a closed state by door locking means, and the locked state of the door is detected by the door lock detecting means. The control means performs a series of sequential operations and, based on the output of the first water level detection means for detecting the overflow water level from the cleaning tank, the water level in the cleaning tank is changed to the second water level detection means.
When it is determined that the water level exceeds the detection water level and the water overflows, the door is locked in the closed state.

Thus, even in the case of an unsafe situation such as an overflow, the door can be securely locked and safety can be improved.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, there is provided a power supply switching means for supplying or interrupting power to a load;
A washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, door locking means for locking the door in a closed state, and a door locked by the door locking means; Lock detecting means for detecting that the door is locked, and a control means for performing a series of sequential operations, wherein the control means locks the door by the door lock detecting means when the power supply opening / closing means is closed. When it is determined that the door is locked, the operation is terminated with the door locked, such as when the power plug is disconnected, when the breaker due to overcurrent is dropped, or when a power failure occurs. Next time,
When the power switch is turned on, the door can be reliably opened, the problem that the door cannot be opened can be eliminated, and usability can be improved.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a door opening / closing detecting means for detecting that the door is closed, and the control means operates when the door is open. When the operation of starting operation is performed by the means, after the door is detected by the door open / close detection means, the door is locked in the closed state by the door lock means, and a series of sequential operations are started. Since the start of operation can be accepted regardless of whether the door is opened or closed,
The user can operate without being conscious, and the usability can be improved.

According to a third aspect of the present invention, there is provided a washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, and a door lock for locking the door in a closed state. Means, door lock detection means for detecting that the door is locked by the door lock means, operation means for setting the operation content, and control means for performing a series of sequential operations, the control means, The specified switch on the operating means
When the power switch is turned on while the switch is pressed, the door is locked in the closed state, and during operation stoppage, unintended opening and closing of the door by children's mischief can be performed if necessary. Can not be,
Safety can be improved.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the control means includes a control means for controlling a predetermined operation by the operation means.
The door lock is released by an operation of turning on the power switch while keeping the switch pressed.The user releases the door lock state while the operation is stopped, and performs a normal operation. Can be possible.

According to a fifth aspect of the present invention, in the third aspect of the present invention, the control means is configured to control a predetermined operation by the operating means.
By keeping the switch pressed or the number of times the switch is pressed , reception by the operating means is prohibited, and the door lock cannot be released. It is possible to prevent unintended opening and closing of the door due to the above, and it is possible to improve safety.

According to a sixth aspect of the present invention, in accordance with the fifth aspect of the present invention, there is provided a writable and readable storage means, and the control means presses a predetermined switch on the operation means.
The presence or absence of the operation of the state of pressing or the number of presses is stored, and from the next operation, the presence or absence of the reception of the operation means is determined based on the contents of the storage means,
The user can eliminate the trouble of setting the child lock every time the vehicle is driven, and can improve the usability.

According to a seventh aspect of the present invention, there is provided a washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, and a door lock for locking the door in a closed state. Means, door lock detection means for detecting that the door is locked by the door lock means, first water level detection means for detecting the level of overflow water from the washing tank,
A second water level detecting means for detecting a water level in the washing tank, and a control means for performing a series of sequential operations, the control means comprising:
Based on the output of the first water level detecting means , the water level in the cleaning tank
If it is determined that the water level is higher than the water level detected by the second water level detecting means and the water is overflowing, the door is locked in a closed state. Can be securely locked, so that even if hot water is supplied into the cleaning tank, the door is not opened, so that burns can be prevented and safety can be improved.

[0028] The invention of claim 8 is the invention according to the claim 7, and a drainage <br/> means to drain the wash water in the washing tub, the control means by said draining means When the water level in the washing tank falls and reaches the water level detected by the second water level detection means , the door lock is released, and the user must wait until the product is in a safe state to open the door. Can be opened, and safety can be improved.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

Embodiment 1 As shown in FIG. 2, the door 22 covers the front opening of the cleaning tank 1 so as to be openable and closable forward. As shown in FIG. 3, a handle 23 is rotatably supported by a shaft 24 at an upper portion of the door 22. A handle 25 is provided at the front of the handle 23 to cover the front opening 26 of the door 22 and to form a hole 28 in a lid back plate 27 attached to the back of the door 22.
It has a locking portion 29 extending further rearward. Handle part 25
The locking portion 29 is urged by a spring 30 attached to the shaft 24 in a direction to engage with the door lock device 31 in a state where the door 22 is closed.

The door lock device 31 attached to the dishwasher body 9 is provided with a locking portion insertion plate 33 which is urged downward by a spring 32 at the front and is slidable up and down, and the door 22 is closed. When the locking portion 29 is in the locked state,
1 and push the locking portion insertion plate 33 upward. An operation plate 35 slidable rearward by suction of the solenoid 34 is disposed behind the locking portion insertion plate 33. Each time the suction of the solenoid 34 is repeated by the heart cam 36, the operation plate 35 is shifted by a predetermined amount in the front-rear direction. Is held in the position.

FIG. 3 shows a locked state in which the locking portion insertion plate 33 and the locking portion 37 of the operation plate 35 abut against each other, and the locking portion 29 does not come off the door locking device 31 even when the grip portion 25 is gripped. The door lock switch 38 for operating the cleaning / drainage pump 4 by the operation plate 35 is turned on.

When the solenoid 34 further sucks once from this state, the operation plate 35 is moved forward by a predetermined amount and held, the lock portion 37 is released, the door lock switch 38 is turned off, and the washing / draining pump 4 is turned off. When the door is stopped and the grip portion 25 is grasped, the locking portion 29 pushes down the locking portion insertion plate 33.
1 and the door 22 is unlocked so that the door 22 can be opened.

As described above, the door lock device 31 has a function of repeatedly locking and unlocking each time the solenoid 34 is sucked.
Function as door locking means for locking the door 2 and the door 2
The function as a door unlocking means for unlocking the lock 2 is alternately repeated. Also, the door lock switch 38
Functions as a door lock detecting means for detecting a locked state of the door 22 in an on state, and functions as a door unlock detecting means for detecting a state in which the door 22 is unlocked in an off state.

The control device 39 controls the motor 5, the heater 6, the blower fan 15, the solenoid 34, the water supply valve 40 and the like to sequentially control the washing, rinsing and drying processes.
It is configured as shown in FIG.

As shown in FIG. 4, the operating means 41 includes a power switch 41a for turning on and off the power, a start switch 41b for starting and stopping operation, a course switch 41c for setting a course, and a reservation switch 41d for setting a reservation time. And so on.

The control means 42 is constituted by a microcomputer, and loads such as the motor 5, the heater 6, the blower fan 15, and the display means 44 are provided via the load control means 43 in accordance with the input set by the operation means 41. And the notifying means 45 are controlled in accordance with a predetermined sequence. Further, the control means 42 inputs ON / OFF of the door lock switch 38 through the door lock detection means 46, and judges the locked / unlocked state.

The display means 44 comprises a light emitting diode. As shown in FIG. 4, a course display section 44a for displaying course contents and an abnormal content display section 44 for displaying abnormal contents.
b, an operation display section 44c for displaying an operation state, a reservation time display section 44d for displaying a reservation time, and the like. The notification means 45 is constituted by a piezoelectric buzzer.
The power supply circuit 47 generates a power supply for the control unit 42 and the like.

The storage means 48 is for writing and reading the information input to the control means 42. Normally, a non-volatile memory which does not lose its stored contents even when power is not supplied is used. If power is always supplied to the microcomputer constituting the microcomputer, a RAM mounted inside the microcomputer may be used.

A relay (power supply opening / closing means) 49 is configured to connect loads such as the motor 5, the heater 6, the blower fan 15 and the commercial power supply according to the output from the control means 42. The door opening / closing detecting means 50 detects that the door 22 is closed, and is configured by a reed switch, a micro switch, and the like, and is disposed above the cleaning tank 1.

The first water level detecting means 51 detects an overflow water level from the cleaning tank 1, and detects an abnormal water level in the cleaning tank 1 or a water level at which cleaning water overflowing from the cleaning tank 1 is collected at one place. Is to be detected. Second water level detecting means 52
Is for detecting a water level required for cleaning in the cleaning tank 1.

Here, the control means 42 is configured to release the lock when the relay (power supply opening / closing means) 49 is closed and the door lock switch 38 determines that the door 22 is locked.

The operation of the above configuration will be described with reference to FIG. In FIG. 5, in step 61, the power switch 41a of the operation means 41 is pressed, and the relay 49 is operated. In step 62, the control means 42 receives a signal from the door lock switch 38, and when it is determined that the door lock is released, proceeds to step 63 and shifts to the next step.

If it is determined in step 62 that the door 22 is locked, the flow advances to step 64 to energize the solenoid 34 of the door lock device 31. After 0.1 seconds have passed in step 65, the flow advances to step 66 to stop the energization of the solenoid 34. Again, step 6
Returning to step 2, if the door lock has been released, step 63
Proceed to. If it is determined that the door lock has not been released, steps 62 to 66 are repeated.

As described above, when the power switch 41a of the operation means 41 is pressed and the relay 49 is operated, when it is determined that the door 22 is locked by the door lock switch 38, the lock is released. Therefore, even if the power plug is unplugged, the breaker due to overcurrent is dropped, or if a power failure occurs, even if the operation ends with the door 22 locked,
Next time, when the power switch 41a is turned on, the door 22 can be reliably opened, the problem that the door 22 cannot be opened can be solved, and usability can be improved.

(Embodiment 2) The control means 42 shown in FIG. 1 is controlled by the door opening / closing detecting means 50 when the operation of starting the operation is performed by the start switch 42b of the operating means 41 when the door 22 is open. After detecting that the door is closed, the solenoid 34 causes the door 22 to be closed.
Are locked in a closed state, and a series of sequential operations is started. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described with reference to FIG. In FIG. 6, at step 67, the power switch 41a of the operation means 41 is pressed, and the relay 49 is operated. In step 68, the course setting and the drying time are set, and in step 69, the operation is started by pressing the start switch 41b.

If the door 22 is open at step 70,
Wait in a pause state. If the door 22 is closed and the door opening / closing means 50 detects that the door is closed, the process proceeds to Steps 71 to 74, where the door 22 is locked. When the door lock is confirmed, the process proceeds to the next step, and a series of sequential operations is performed. Start.

As described above, when the door 22 is open,
When the operation of the operation start is performed by the operation unit 41, the door 22 is locked by the solenoid 34 after the door closing is detected by the door opening / closing detection unit 50, and a series of sequential operations are started. Regardless of the opening / closing of 22, the start of operation can be accepted, the user can operate without being conscious, and the usability can be improved.

(Embodiment 3) The control means 42 shown in FIG. 1 locks the door by a predetermined operation on the operation means 41, and thereafter prohibits reception by the operation means. The control means 42 releases the door lock by a predetermined operation on the operation means 41. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described with reference to FIG. In FIG. 7, in step 75, the state where the course switch 41c and the reservation switch 41d are kept depressed is maintained, and in step 76, the power switch 41a is turned on. In step 77, this state is maintained for 3 seconds.

If it is determined in step 78 that the door 22 is closed and the door is unlocked, step 79
Go to step 81 to lock the door 22. When the door lock is confirmed in step 82, the process proceeds to step 83, in which the buzzer sounds once by the notification means 45, and the completion of the door lock reception is notified. By this operation, the door 2
2 is in a locked state, so that the power switch 41a, the course switch 41c, and the reservation switch 41d are not pressed.

If it is determined in step 78 that the door is locked, the process proceeds to steps 84 to 86, and
The door 22 is unlocked. If it is confirmed in step 87 that the door is unlocked, the process proceeds to step 88, where the buzzer sounds twice, and the completion of door unlock is notified. With this operation, the user can easily operate and confirm the door lock and unlock.

(Embodiment 4) The control means 42 shown in FIG. 1 prohibits the reception by the operation means 41 by a predetermined operation on the operation means 41, so that the door lock cannot be released. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described with reference to FIG. In FIG. 8, in step 89, the power switch 41a of the operation means 41 is pressed, and the relay 49 is operated. Proceeding to step 90, the course is set by the course switch 41c, and then proceeding to step 91, where the start switch 41b is pressed. Step 92 to step 9
Proceed to 5 and start operation after confirming the door lock.

Usually, the start switch 41b is a switch for alternately repeating the start and stop operations of the operation, and can be accepted during the operation. Since the course setting cannot be changed once the operation is started, the course setting is not accepted even if the course switch 41c is pressed.

Proceeding to steps 96 and 97, the course switch 41c is continuously depressed for 5 seconds.
Proceed to step 8 to make one buzzer sound to confirm the reception. In step 99, the start switch 41b is set in the non-acceptable mode (child lock).

In the present embodiment, the method for setting the child lock during operation has been described. However, the child lock can be released by performing the operations in steps 96 to 97.

The method of setting and releasing the child lock is as follows.
The course switch 41c does not need to be continuously pressed for 5 seconds as in this case, and the length of time can be changed. In addition, there is no problem in setting by the number of times of pressing, even if the pressing is not continuous. Further, there is no problem even if the switch is not fixed to one switch, and a combination of the pressing time and the number of times of a plurality of switches is not required. Also, the setting and release input methods need not be the same.

Since the power switch 41a is necessary for stopping the operation of the product, the child lock is not normally performed. However, it is possible to perform the child lock on all the switches including the power switch 41a.

(Embodiment 5) The control means 42 shown in FIG. 1 stores the presence or absence of a predetermined operation with the operation means 41 in the storage means 48, and from the next operation, based on the contents of the storage means 48. The presence or absence of reception of the operation means 41 is determined. Other configurations are the same as those of the fourth embodiment.

The operation of the above configuration will be described with reference to FIG. Steps 89 to 95 are the same as the operation of the fourth embodiment, and the description is omitted.

First, "0" is assigned to R in the storage means 48 as an initial value. Since R = 0 in step 100, the process proceeds to steps 101 to 104, where the child lock state is set as in the fourth embodiment. afterwards,
In step 105, “1” is substituted for R.

From the next operation, the process moves to step 104 in step 100. Therefore, once the user sets the child lock, the child lock state is set at the same time as the operation start without any operation from the next time. It is possible for a child lock user every time,
The trouble of setting is eliminated.

In the present embodiment, the method of storing the child lock during driving has been described. However, the child lock is released by performing the same operation as in steps 101 and 102 again during driving. Is also possible.

The method of setting and releasing the child lock is as follows.
The course switch 41c does not need to be continuously pressed for 5 seconds as in this case, and the length of time can be changed. In addition, there is no problem in setting by the number of times of pressing, even if the pressing is not continuous. Further, there is no problem even if the switch is not fixed to one switch, and a combination of the pressing time and the number of times of a plurality of switches is not required. Also, the setting and release input methods need not be the same.

(Embodiment 6) When the first water level detecting means 51 determines that the water is in an overflow state, the control means 42 shown in FIG. When the water level in the washing tank 1 is lowered by the / drain pump 4 and reaches a predetermined water level, the door lock is released. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described with reference to FIG. If the first water level detecting means 51 determines that there is an overflow during the operation stop at step 106, the display means 44 and the notifying means 45 notify the abnormality at step 107, and at step 108, the inside of the cleaning tank 1 is detected. The washing / draining pump 4 is operated to drain the washing water.

In the case of a breakdown failure of the water supply valve 40, even if the first water level detecting means 51 detects the overflow water level and operates the washing / draining pump 4, the water level at the beginning of the detection is high. May have risen to near the tableware basket. Further, if the user is aware of the abnormality and opens the door 22 when hot water is supplied, the door 2
There is a danger of burns due to the flow from the gap 2 to the front. Therefore, the doors are locked in steps 109 to 112 to prevent burns.

When the cleaning / draining pump 4 starts operating and the water level in the cleaning tank 1 drops below the water level detected by the second water level detecting means 52, the water level is no longer the water level flowing out from the front surface. The process proceeds to steps 114 to 117 to release the door lock.

If an overflow state occurs during operation, the door is already locked, and the operation is continued.

[0072]

As described above, according to the first aspect of the present invention, a power supply opening / closing means for supplying or interrupting power to a load, a cleaning tank having an opening and containing tableware, A door for opening and closing the opening of the washing tank, a door lock means for locking the door in a closed state, a door lock detecting means for detecting that the door is locked by the door lock means, Control means for performing a sequential operation, wherein the control means is configured to unlock when the door lock detection means determines that the door is locked when the power supply opening / closing means is closed. The next time the power switch is turned off, even if the operation ends with the door locked, such as when the plug is disconnected, the When you put it, it is possible to reliably open the door, it is possible to solve a problem that can not be opened the door, it is possible to improve the usability.

According to the second aspect of the present invention, there is provided a door open / close detecting means for detecting that the door is closed, and the control means controls the operation means to start operation when the door is open. When the operation is performed, the door is locked in the closed state by the door lock means after detecting the door closing by the door opening / closing detecting means, and a series of sequential operations are started. Regardless of this, the start of operation can be accepted, so that the user can operate without being conscious and the usability can be improved.

According to the third aspect of the present invention, there is provided a washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, and closing the door. A door lock unit for locking, a door lock detection unit for detecting that a door is locked by the door lock unit, an operation unit for setting operation details, and a control unit for performing a series of sequential operations, The control means operates the power switch while holding down a predetermined switch on the operation means.
Since the door is locked in the closed state by the operation of turning on, it is possible to prevent unintended opening and closing of the door due to mischief of the child as necessary while driving is stopped, improving safety Can be.

According to the fourth aspect of the present invention, the control means keeps pressing a predetermined switch on the operating means .
Since the door lock is released by the operation of turning on the power switch in the state, the user can release the door lock state during the stoppage of the operation and enable normal operation.

According to the invention described in claim 5, the control means keeps pressing a predetermined switch on the operation means .
The operation of the state or the number of times of press inhibits the reception of the operation means thereafter and prevents the door lock from being released.Therefore, it is not possible to unintentionally open and close the door due to children's mischief during product operation, if necessary And safety can be improved.

According to the sixth aspect of the present invention, there is provided a writable and readable storage means, and the control means is capable of holding down a predetermined switch of the operation means while holding the switch.
The presence / absence of the operation of the number of presses is stored, and from the next driving, the presence / absence of the reception of the operating means is determined based on the contents of the storage means, so that the user sets the child lock every time the driving is performed. Can be eliminated, and usability can be improved.

According to the seventh aspect of the present invention, there is provided a washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, and the door being closed. Door lock means for locking, door lock detection means for detecting that the door is locked by the door lock means, first water level detection means for detecting the overflow water level from the washing tank, Second water level detection for detecting water level
Means, and control means for performing a series of sequential operations, wherein the control means performs washing by an output of the first water level detection means.
If it is determined that the water level in the water purifier exceeds the water level detected by the second water level detection means and the water is in an overflow state, the door is locked in a closed state, so that an unsafe state such as an overflow is abnormal. Even in the event of a situation, the door can be securely locked, so that even if hot water is supplied in the cleaning tank, the door does not open, thereby preventing burns and improving safety.

[0079] According to the invention described in claim 8, and a drainage means for draining the washing water in the washing tub, the control means, the water level in the cleaning tank is lowered by the drainage unit, second
When the water level is detected by the water level detection means , the door lock is released, so that the user can open the door after the product is in a safe state, improving safety. it can.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the dishwasher.

FIG. 3 is an enlarged sectional view of a main part of the dishwasher.

FIG. 4 is an enlarged front view of an operation display unit of the dishwasher.

FIG. 5 is an operation flowchart of a main part of the dishwasher.

FIG. 6 is an operation flowchart of a main part of a dishwasher according to a second embodiment of the present invention.

FIG. 7 is an operational flowchart of a main part of a dishwasher according to a third embodiment of the present invention.

FIG. 8 is an operation flowchart of a main part of a dishwasher according to a fourth embodiment of the present invention.

FIG. 9 is an operation flowchart of a main part of a dishwasher according to a fifth embodiment of the present invention.

FIG. 10 is an operational flowchart of a main part of a dishwasher according to a sixth embodiment of the present invention.

FIG. 11 is a partially cutaway side view of a conventional dishwasher.

FIG. 12 is an enlarged plan view of a main part of the dishwasher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Washing tank 2 Tableware 22 Door 34 Solenoid (Door lock means) 38 Door lock switch (Door lock detecting means) 42 Control means 49 Relay (Power supply opening / closing means)

Continuation of the front page (56) References JP-A-11-290260 (JP, A) JP-A-62-261322 (JP, A) JP-A-10-155722 (JP, A) JP-A-5-344947 (JP) JP-A-6-254284 (JP, A) JP-A-9-217532 (JP, A) JP-A-4-231997 (JP, A) JP-A-4-89289 (JP, U) JP-A-4-89289 2-94766 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 15/42-15/46

Claims (8)

(57) [Claims] 1. A power supply opening / closing means for supplying or shutting off power to a load, a washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, and closing the door. Door lock means for locking the door in a state, door lock detection means for detecting that the door is locked by the door lock means, and control means for performing a series of sequential operations, wherein the control means A dishwasher configured to unlock when a door is locked by the door lock detecting means when the means is closed. And a door opening / closing detecting means for detecting that the door is closed, wherein the control means is configured to open and close the door when the operation is started by the operating means when the door is open. 2. The dishwasher according to claim 1, wherein after detecting the door closing by the detecting means, the door is locked to the closed state by the door locking means, and a series of sequential operations are started. 3. A washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, door locking means for locking the door in a closed state, and the door locking means. A door lock detecting means for detecting that the door is locked, an operation means for setting operation details, and a control means for performing a series of sequential operations, wherein the control means includes a predetermined switch on the operation means. Press and hold
Dishwasher that locks the door closed by turning on the power switch in the state. 4. The control means according to claim 1, wherein said control means is a predetermined switch.
The dishwasher according to claim 3, wherein the door lock is released by an operation of turning on a power switch while holding down the switch . 5. The control means according to claim 1, wherein said control means is a predetermined switch.
Key while holding down or pressing the number of times
4. The dishwasher according to claim 3, wherein the reception by the operation means is prohibited, and the door lock cannot be released. 6. A readable and writable storage means, wherein the control means presses a predetermined switch on the operation means .
Memorize the state of operation as it is or the number of presses ,
6. The dishwasher according to claim 5, wherein, from the next operation, whether the operation means is accepted or not is determined based on the contents of the storage means. 7. A washing tank having an opening for storing tableware, a door for opening and closing the opening of the washing tank, a door locking means for locking the door in a closed state, and the door locking means. Door lock detecting means for detecting that the door is locked, first water level detecting means for detecting the overflow water level from the washing tank, and detecting the water level in the washing tank.
A second water level detecting means, and a control means for performing a series of sequential operations, wherein the control means adjusts the water level in the washing tank to the second water level detecting means by an output of the first water level detecting means.
The dishwasher locks the door in the closed state when it is judged that the water has overflowed beyond the detected water level . 8. A drainage unit for draining washing water in the washing tub
The control means releases the door lock when the water level in the washing tank is lowered by the drainage means and reaches the water level detected by the second water level detection means.
Dishwasher as described.