JP2016049264A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher that prevents a situation in which no dish washing operation starts contrary to a user's intention.SOLUTION: An operation controller 11, with a washing tank 20 drawn out from a housing 40, after the starting instruction of dishwashing operation by a start switch 55 and, when the washing tank 20 is detected being housed in the housing 40 by a position sensor 45 and the washing tank 20 is also detected being set in a washing position by a lock sensor 62, implements the dish washing operation. An operation standby notifier 12, with the washing tank 20 drawn out from the housing 40, after the starting instruction of dishwashing operation by the start switch 55 and, when the ON-state of the position sensor 45 and the OFF-state of the lock sensor 62 continue for a prescribed time or longer, performs a first notification.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a front drawer type dishwasher.

  Conventionally, as a dishwasher installed in a system kitchen or the like, a washing tank in which tableware is stored is slid horizontally through an opening provided on the front side of the washing machine main body (side facing the user). 2. Description of the Related Art A front-drawing type dishwasher that is configured to be inserted and removed is known (for example, see Patent Document 1).

  In the dishwasher described in Patent Document 1, a lock mechanism that switches between fixing and releasing the position of the washing tub by operating a lock release lever that is linked to the operation of the handle for pulling out the washing tub, and a lock release lever There are provided means for detecting the operation and means for detecting that the cleaning tank is accommodated in the main body of the cleaning machine.

  Then, the dishwashing operation is interrupted when it is detected that the lock mechanism has been released during the dishwashing operation, and when the predetermined time has passed, the washing tank is stored in the washing machine body. When it is detected that the tableware is detected, the dishwashing operation is resumed.

  According to this configuration, the dishwashing operation is interrupted when the user accidentally touches the unlocking lever during the dishwashing operation, and the user is not aware of the interruption. It can be prevented from being left as it is.

JP 2012-29747 A

  Front drawer type dishwashers are often installed in the lower part of the system kitchen, and thus there is a tendency for the switches to be difficult to operate. Therefore, when the setting of tableware and detergent in the washing tub is completed, after performing the switch operation to instruct the start of the dish washing operation, the dish washing operation is performed when the washing tub is stored in the washing machine body. It is conceivable that the operation of the start instruction by the user can be facilitated by adopting a configuration in which is started.

  However, in this configuration, when the user stored the cleaning tank in the main body of the cleaning machine, the sensor for detecting the storage of the cleaning tank did not operate because the cleaning tank was not sufficiently pushed. Sometimes, when the dishwashing is not started and the user does not notice this, the dishwashing operation is not started despite the operation of starting the dishwashing operation.

  The present invention has been made in view of such a background, and an object of the present invention is to provide a dishwasher that prevents a situation where the dishwashing operation is not started contrary to the intention of the user.

The present invention has been made to achieve the above object, and the dishwasher of the present invention comprises:
A washing tank in which dishes are stored;
A housing having an opening on the front surface, through which the cleaning tank is taken in and out in a horizontal direction,
A cleaning set state determining means for determining a cleaning set state in which the cleaning tank is set at a predetermined cleaning position in the housing;
A storage failure state determination means for determining a storage failure state in which the cleaning tank is stored in a storage failure range set on the opening side beyond the cleaning position in the housing;
An operation execution instructing unit for instructing execution of a dishwashing operation according to a user's operation;
When the washing execution state is detected by the washing set state determination means after the washing execution state is instructed by the operation execution instructing unit with the washing tank being pulled out from the housing. In addition, the operation control unit that executes the dishwashing operation and the washing tank being pulled out from the housing, and the operation execution instruction unit instructs the start of the dishwashing operation, and then the storage failure state determination unit An operation standby notification unit that performs a predetermined first notification when it is determined that the storage failure state has continued for a first predetermined time or longer is provided.

  According to the present invention, a user who intends to wash dishes with the dishwasher draws the washing tank out of the housing and stores the dishes in the washing tank, and the operation execution instruction section cleans the dishes. After instructing the start of operation, the cleaning tank is pushed into and stored in the cleaning position (usually the innermost part of the casing) in the casing. And thereby, the said operation control part performs dish washing operation.

  However, if the user does not sufficiently push the cleaning tank into the housing, the cleaning tank is stored in front of the cleaning position. In this case, the cleaning set state determination means Since the washing set state is not detected, the dish washing operation is not executed. If the user does not notice that the washing tank has been pushed in insufficiently, the dishwashing operation is not performed and the user is left unexecuted against the intention of the user who thought that the dishwashing operation was performed. Will be.

  Therefore, after the operation execution instruction unit instructs the operation standby instruction unit to execute the dishwashing operation, the storage failure state determination unit continuously detects that the storage is in a poor storage state for a predetermined time or more. Sometimes, the first notification is performed. As a result, the user is made aware that the pushing of the cleaning tank into the housing is insufficient, and urges the user to store the housing in the cleaning position, and executes the dish washing operation. be able to.

In addition, when the cleaning tank is stored in the cleaning position in the housing, the cleaning tank is fixed with respect to the housing in a locked state, and the cleaning tank can be inserted into and removed from the housing. A lock mechanism for switching between the lock state and
A lock state detection unit that detects whether the lock state or the unlock state;
A storage detector that detects that the cleaning tank is stored in the housing within the cleaning position or the storage failure range;
The storage failure state determination means detects that the cleaning tank is stored in the housing at the cleaning position or a position within the storage failure range by the storage detection unit, and the lock state detection unit Thus, when it is detected that the unlocked state is detected, it is determined that the storage is poor.

  According to this configuration, the storage failure state determination unit can be configured with a simple configuration in which the storage detection unit and the lock state detection unit are combined.

  In addition, the operation standby notification unit is configured so that, after the cleaning tank is pulled out from the housing, the operation execution instruction unit instructs the start of the dish washing operation, and then the storage detection unit detects the cleaning tank. The second notification different from the first notification is performed when a state in which it is not detected to be stored in the housing within the cleaning position or the storage failure range continues for a second predetermined time or longer. Features.

  According to this configuration, the first notification for a case where the storage position of the cleaning tank in the casing by the user is defective, and the user forgets to store the cleaning tank in the casing. By performing the second notification with respect to the case in a different manner, it is possible to more effectively urge the user to deal with a defective storage position of the cleaning tank.

Explanatory drawing which showed the structure of the dishwasher of this embodiment by the cross section. Explanatory drawing of the usage condition of the dishwasher shown in FIG. The control block diagram of the tableware washing machine shown in FIG. Explanatory drawing of the detection of the position of the washing tank by a position sensor and a lock sensor. Flow chart of dish washing operation.

  Embodiment of the dishwasher of this invention is described with reference to FIGS.

  With reference to FIG. 1, the dishwasher 1 of this embodiment is a front drawer type dishwasher provided in the lower part of the top plate (countertop) CT, such as a system kitchen, and the opening M of the housing | casing 40 is shown. The washing tank 20 is slid in and out in the horizontal direction via

  In the housing 40, a water supply pipe 41 for supplying water to the cleaning tank 20, a water supply electromagnetic valve 44 for switching the supply and stop of water to the cleaning tank 20 by opening and closing the water supply pipe 41, A position sensor 45 that detects that the drain pipe 42 for draining water and the cleaning tank 20 are housed within a certain range (including the cleaning position of the present invention) from the innermost part of the housing 40. (Corresponding to the storage detection unit of the invention).

  In the washing tub 20, a table basket 21 containing tableware such as W is set, a washing nozzle 22 that jets water toward the tableware, a heater 23 that heats the water stored in the washing tub 20, A temperature sensor 24 for detecting temperature, a pump 26, and a drying fan 28 are provided.

  The pump 26 circulates the water in the cleaning tank 20 through the cleaning nozzle 22 during the forward rotation operation, and discharges the water in the cleaning tank 20 through the leftover filter 25 and the drain pipe 42 during the reverse rotation operation. The drying fan 28 rotates in a state where the heater 23 is operated, thereby sending warm air into the cleaning tank 20 to dry the dishes. The warm air sent into the cleaning tank 20 by the drying fan 28 is exhausted from the vent e above the cleaning tank 20.

  The water level detection tank 30 connected to the water storage section of the cleaning tank 20 through the communication pipe 27 is provided with a float type water level sensor 31 that detects that water of a predetermined water level is stored in the cleaning tank 20.

  An operation unit 50 that is operated by a user is provided on the upper surface of the front end of the cleaning tank 20. Details of the operation unit 50 will be described later. On the front surface of the cleaning tank 20, a handle portion 60 that is gripped by a user when the cleaning tank 20 is taken in and out is provided. The handle portion 60 is engaged with the claw portion 63 of the housing 40 to fix the cleaning tank 20 to the cleaning position of the housing 40, and the lock lever 61 is in the locked position (the claw portion of the housing 40). A lock sensor 62 (corresponding to the lock state detection unit of the present invention) is provided.

  The lock lever 61 and the claw portion 63 of the housing 40 constitute the lock mechanism of the present invention. The cleaning position has a slight deviation due to the play of the lock mechanism, which will be described later.

  When the user grasps the handle portion 60, the lock lever 61 rotates upward to disengage from the claw portion 63, and an unlocked state in which the cleaning tank 20 can be taken in and out is brought about. The lock lever 61 is biased in the locking direction, and when the user releases the handle 60, the lock lever 61 returns to the lock position.

  With this configuration, the user holds the handle 60 (unlocked state), pushes the cleaning tank 20 to the cleaning position in the housing 40, and releases the handle 60 to release the cleaning tank. 20 is fixed in the cleaning position (cleaning set state, locked state). The dish washing operation is performed in this locked state.

  Next, as shown in FIG. 2A, when the cleaning tank 20 is stored in the cleaning position in the housing 40 and is in the locked state, the position sensor 45 is turned on (detected state), and The lock sensor 62 is also turned on. On the other hand, as shown in FIG. 2B, when the cleaning tank 20 is pulled out from the housing 40, the position sensor 45 is turned off (non-detection state), and the lock sensor 62 is set by the user. ON and OFF are switched according to the gripping state of the handle 60.

  Moreover, since the operation part 50 is provided in the top | upper surface of the front part of the washing tank 20, in the state which the washing tank 20 shown to Fig.2 (a) was accommodated in the housing | casing 40, the operation part 50 is a system kitchen. It hides in the top plate CT. Therefore, the user cannot operate and visually recognize the operation unit 50.

  Therefore, in the dishwasher 1, after the washing tank 20 shown in FIG. 2B is pulled out from the housing 40, the operation unit 50 is operated to instruct the start of the dish washing operation, and then the washing tank The tableware washing operation is started by pushing 20 into the housing 40.

  Next, referring to FIG. 3, the controller 10 is an electronic circuit unit configured by a CPU, a memory, an interface circuit, etc. (not shown), and the CPU executes a control program for the dishwasher 1 held in the memory. By doing so, it functions as an operation control unit 11 for executing a series of tableware washing operation processing, and an operation standby notification unit 12 for notifying the poor storage state of the cleaning tank 20 in the housing 40.

  The controller 10 receives detection signals from the temperature sensor 24, the water level sensor 31, the lock sensor 62, and the position sensor 45. Further, the operations of the heater 23, the pump 26, the water supply electromagnetic valve 44, and the drying fan 28 are controlled by a control signal output from the controller 10 via the drive circuit 70.

  The operation unit 50 is provided with a display 51, a buzzer 52, a power switch 53, a mode setting switch 54, a start switch 55 (corresponding to the operation execution instruction unit of the present invention), and the like. The user can switch between power supply to the dishwasher 1 and shut-off by operating the power switch 53.

  Further, the user operates the mode setting switch 54 to set various conditions for the dishwashing operation, and operates the start switch 55 (start operation) to instruct the start of the dishwashing operation. The display 51 displays the operating conditions of the dishwashing operation, the operation progress, and the like.

  An operation signal of each switch of the operation unit 50 is input to the controller 10. The operations of the display 51 and the buzzer 52 are controlled by a control signal output from the controller 10 to the operation unit 50.

  Next, the detection range of the position sensor 45 and the detection mode of the lock sensor 62 will be described with reference to FIG. FIG. 4 shows the position sensor 45 and the lock sensor 62 when the user holds the handle 60 and pulls out the cleaning tank 20 from the position where the cleaning tank 20 is completely pushed to the innermost part of the housing 40. This shows the switching of the detection signal (ON / OFF).

  In FIG. 4, the detection signal of the lock sensor 62 is switched from ON to OFF when the cleaning tank 20 is pulled out 2 mm from the cleaning position. Further, the detection signal of the position sensor 45 is switched from ON to OFF when the cleaning tank 20 is pulled out 10 mm (corresponding to a predetermined amount of the present invention) from the cleaning position. When the cleaning tank 20 is pulled out 15 mm from the cleaning position, the user releases the handle 60, and the detection signal of the lock sensor 62 is switched from OFF to ON.

  In this case, a state in which both the detection signals of the lock sensor 62 and the position sensor 45 are ON (a state in which the cleaning tank 20 is housed in a range of 0 to 2 mm from the innermost portion of the housing 40) is a lock mechanism (lock By the lever 61 and the claw portion 63), the cleaning tank 20 becomes a cleaning position fixed to the housing 40. That is, the cleaning position has a deviation width of 2 mm due to the play of the lock mechanism. The dish washing operation is executed at the washing position thus fixed.

  On the other hand, the detection signal of the position sensor 45 is ON, but the detection signal of the lock sensor 62 is OFF (in the range from the innermost part of the housing 40 to 10 mm beyond the position of 2 mm). Is stored), it can be determined that the storage tank 20 is in a poor storage state in which the cleaning tank 20 is not sufficiently pushed. Further, when the detection signal of the position sensor 45 is OFF, it can be determined that the cleaning tank 20 is in a state of being pulled out from the housing 40.

  Therefore, the operation standby notification unit 12 recognizes and notifies the storage state of the cleaning tank 20 in the housing 40 based on the detection signals of the position sensor 45 and the lock sensor 62. In addition, the structure which determines that the washing tank 20 is accommodated in the washing | cleaning position in the housing | casing 40 by the detection signal of the position sensor 45 and the lock sensor 62 corresponds to the washing | cleaning set state determination means of this invention. In addition, the configuration for detecting that the cleaning tank 20 is stored at a position deviated by a predetermined range from the cleaning position in the housing 40 based on the detection signals of the position sensor 45 and the lock sensor 62 is the storage failure state of the present invention. It corresponds to the determination means.

  Hereinafter, processing by the operation control unit 11 and the operation standby notification unit 12 will be described according to the flowchart shown in FIG.

  When the power supply to the dishwasher 1 is started according to the operation of the power switch 53 by the user, the controller 10 is activated and the process shown in the flowchart of FIG. 5 is executed.

  When the start switch is turned on (start operation) in STEP1 of FIG. 5, the operation control unit 11 proceeds to STEP2 and starts the timer.

  Then, when the position sensor 45 is turned on in STEP 3 and the lock sensor 62 is turned on in the subsequent STEP 4, that is, it is recognized that the cleaning tank 20 is locked at the innermost part of the housing 40. Sometimes proceed to STEP 5 to start the dishwashing operation.

  The dish washing operation is executed by a series of processes, for example, “washing process” → “rinsing process” → “high temperature rinsing process” → “drying process”.

  If the position sensor 45 is not ON in STEP3, the process branches to STEP10. STEP 10 to STEP 11 are processes by the operation standby notification unit 12. The operation standby notification unit 12 determines whether or not the timer has expired in STEP 10. If the timer has not expired, the process returns to STEP3.

  On the other hand, when the timer expires, since it can be determined that the user has forgotten to store the cleaning tank 20 in the housing 40, the process proceeds to STEP 11, and the operation standby notification unit 12 generates a notification sound from the buzzer 52. In addition to outputting, a notification is displayed on the display 51 to perform a second notification that prompts the user to store the cleaning tank 20.

  Further, when the lock sensor 62 is not ON in STEP4, the process branches to STEP20. STEP 20 to STEP 21 are processes by the operation standby notification unit 12. The operation standby notification unit 12 determines whether or not the timer has expired in STEP 20. Then, when the timer is not up, the process returns to STEP3.

  On the other hand, when the timer expires, the user has stored the cleaning tank 20 in the housing 40, but it can be determined that the cleaning tank 20 is not locked at the cleaning position because of insufficient pressing. In this case, the user may think that the dishwashing operation is started by storing the washing tank 20 and may have left the dishwasher 1.

  Then, it progresses to STEP21 and the driving | operation standby alerting | reporting part 12 raises a sound volume rather than the 2nd alerting | reporting in STEP11 mentioned above, and outputs the alerting sound by the buzzer 52, and performs alerting | reporting display on the display 51, and gives a user. A first notification that prompts storage of the cleaning tank 20 is performed.

  In this way, in a manner different from the second notification for encouraging the storage of the washing tub 20, by notifying that the start of the dish washing operation is in a standby state due to poor storage of the cleaning tub 20, the dish washing operation is performed. More effective notification can be made to the user who is supposed to start.

  The set time of the timer corresponds to the first predetermined time and the second predetermined time of the present invention. Also, the timer setting time for the first notification (corresponding to the first predetermined time of the present invention) and the timer setting time for the second notification (corresponding to the second predetermined time of the present invention) are set to different times. It may be set.

  Here, during execution of the dishwashing operation, when the user holds the handle 60 in order to add tableware and the lock sensor 62 is turned off, the operation control unit 11 performs the dishwashing operation. Interrupt. In this case as well, as in the processing at the start of operation shown in FIG. 5, after the user operates the start switch 55, the cleaning tank 20 is pushed into the innermost part of the housing 40, and the position sensor When both 45 and the lock sensor 62 are turned on, the operation control unit 11 resumes the dishwashing operation.

  Similarly to the operation start process shown in FIG. 5, the operation standby notification unit 12 also performs the second notification when the timer expires without the position sensor 45 being turned ON, and the position sensor 45 is turned ON. A first notification is made when the timer expires with the lock sensor 62 turned off.

  In the present embodiment, the combination of the position sensor 45 and the lock sensor 62 constitutes the storage failure state determination unit of the present invention. However, for example, the cleaning tank 20 is located at the cleaning position of the housing 40 according to other configurations. You may comprise using the position sensor etc. which can distinguish and detect the state accommodated, and having accommodated in the predetermined range before the washing | cleaning position.

  In the present embodiment, the lock mechanism has play. However, the present invention can be applied to the lock mechanism having no play.

  In the present embodiment, the second notification when the position sensor 45 is not ON (the user forgets to store the cleaning tank 20), and the position sensor 45 is ON but the lock sensor 62 is ON. The first notification when the user does not press the cleaning tank 20 (the user does not sufficiently push the cleaning tank 20) is performed in a different mode, but the same mode may be used.

  DESCRIPTION OF SYMBOLS 1 ... Tableware washing machine, 10 ... Controller, 11 ... Operation control part, 12 ... Operation standby notification part, 20 ... Washing tank, 40 ... Case, 45 ... Position sensor (storage detection part), 50 ... Operation part, 55 ... Start switch, 61... Lock lever (lock mechanism), 62... Lock sensor (lock state detection unit), 63.

Claims (3)

A washing tank in which dishes are stored;
A housing having an opening on the front surface, through which the cleaning tank is taken in and out in a horizontal direction,
A cleaning set state determining means for determining a cleaning set state in which the cleaning tank is set at a predetermined cleaning position in the housing;
A storage failure state determination means for determining a storage failure state in which the cleaning tank is stored in a storage failure range set on the opening side beyond the cleaning position in the housing;
An operation execution instructing unit for instructing execution of a dishwashing operation according to a user's operation;
When the washing execution state is detected by the washing set state determination means after the washing execution state is instructed by the operation execution instructing unit with the washing tank being pulled out from the housing. In addition, the operation control unit that executes the dishwashing operation and the washing tank being pulled out from the housing, and the operation execution instruction unit instructs the start of the dishwashing operation, and then the storage failure state determination unit A dishwasher comprising: an operation standby notification unit that performs a predetermined first notification when it is determined that the poor storage state has continued for a first predetermined time or more. The dishwasher according to claim 1, wherein
When the cleaning tank is stored in the cleaning position in the housing, the locked state in which the position of the cleaning tank is fixed with respect to the housing, and the unlocked state in which the cleaning tank can be taken in and out of the housing A locking mechanism for switching between
A lock state detection unit that detects whether the lock state or the unlock state;
A storage detector that detects that the cleaning tank is stored in the housing within the cleaning position or the storage failure range;
The storage failure state determination means detects that the cleaning tank is stored in the housing at the cleaning position or a position within the storage failure range by the storage detection unit, and the lock state detection unit Thus, when it is detected that the unlocked state is detected, the dishwasher is determined to be in the poor storage state. The dishwasher according to claim 2,
The operation standby notification unit is in a state in which the cleaning tank is pulled out from the housing, and after the operation execution instruction unit is instructed to start a dish washing operation, the storage detection unit is configured so that the cleaning tank is A second notification different from the first notification is performed when a state where it is not detected to be stored in the housing within a cleaning position or the storage failure range continues for a second predetermined time or more. Dishwasher to do.

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