EP1733675B1 - Dishwasher having a washing tub closable by door, and corresponding dishwashing method - Google Patents

Dishwasher having a washing tub closable by door, and corresponding dishwashing method Download PDF

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Publication number
EP1733675B1
EP1733675B1 EP06009187A EP06009187A EP1733675B1 EP 1733675 B1 EP1733675 B1 EP 1733675B1 EP 06009187 A EP06009187 A EP 06009187A EP 06009187 A EP06009187 A EP 06009187A EP 1733675 B1 EP1733675 B1 EP 1733675B1
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EP
European Patent Office
Prior art keywords
door
dishwasher
motor
closure plate
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP06009187A
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German (de)
French (fr)
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EP1733675A2 (en
EP1733675A3 (en
Inventor
Erik Berends
Markus Drücker
Dirk Wegener
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
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Miele und Cie KG
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Priority to PL06009187T priority Critical patent/PL1733675T3/en
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Publication of EP1733675A3 publication Critical patent/EP1733675A3/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0034—Drying phases, including dripping-off phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/20—Time, e.g. elapsed operating time
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/22—Loading doors, e.g. door latches, inflatable door seals
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/41—Function thereof for closing
    • E05Y2201/412—Function thereof for closing for the final closing movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • E05Y2201/426—Function thereof for opening for the initial opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers

Definitions

  • the invention relates to a dishwasher with a washing container, which can be closed by a hinged door with the interposition of a seal, and with a device control, wherein for locking a door arranged on the locking device engages in a arranged on the washing container locking block, and wherein the gap-wise opening of the door is arranged by the device control of the locking bolt on an adjustable by means of a motor closing plate.
  • the invention also relates to methods for carrying out a washing program in such a dishwasher.
  • the invention thus presents the problem to disclose a dishwasher and a method for carrying out a washing program of the type mentioned, in which a controlled opening and closing operation of the door is possible.
  • the automatic movability of the closing plate in two different opening positions allows on the one hand a sufficient gap opening for drying, in which the vapor from the interior of the washing can escape freely into the ambient air and on the other hand, the closing plate can be moved back from this disturbing state and still positioned in one position in which the door can be locked easily.
  • the first gap width is dimensioned such that it corresponds to the thickness of the seal or exceeds this slightly and therefore amounts to about one centimeter.
  • the second gap width should be dimensioned such that the door opened by this width protrudes with its upper inner edge under a cover or worktop on the dishwasher and consequently amounts to approximately ten centimeters.
  • the device control at the end of the program drive the closing plate by means of the motor in the second opening position.
  • This is particularly advantageous if the moisture of the dishes in the washing is still large at the end of the program.
  • An indication of this can either be the program set by the user, for example a glass rinse program, a program for rinsing plastic dishes or an automatic program.
  • sensor values can be determined which correlate with the degree of drying. The wide opening of the door prevents rewet of the dishes and accelerates its cooling. Subsequently, the user is assisted in closing the door in that the device control moves the closing plate by means of the motor in the first open position after the opening of the locking device.
  • the device control can sense the operation of the locking device for opening and / or closing. Due to the upstream locking plate position is the user when closing the Pressure of the door against the seal spared and still ensures engagement of the locking device in the locking pin. It is expedient if the device control after closing the locking device, the closing plate by means of the motor moves into the closed position in which the door closes the rinsing container with the interposition of the seal.
  • a further advantageous method is characterized in that the device control drives the closing plate by means of the motor in the second opening position after detecting a device or operating error.
  • Such automatic door opening in the event of a fault is particularly advantageous in so-called fully integrated dishwashers, since in these devices the control panel together with the associated display devices is arranged on the upper edge of the door and can therefore only be viewed when the door is open.
  • the latter can drive the closing plate into the closed position by means of the motor when the locking device is open in the first open position or with the locking device closed.
  • the device control switches off the engine via the open positions and the closed position associated sensors for exact position detection.
  • FIGS. 1 A and 1B show a dishwasher 1, in which the lid, the control panel and the door outer panel were removed for better representation of the closing mechanism.
  • the dishwasher 1 has a washing container 2, on which a door 3 is arranged pivotally for closing the washing container 2. To prevent the Outlet of rinsing liquid (not shown) from the washing compartment 2, this is provided with a circumferential seal 20.
  • a fork-shaped locking element 4 is arranged on the door, which is rotatably mounted in a known manner and engages in its locking position in a arranged on the washing container 2 closing cam 5.
  • a handle 6 is pushed up while the locking member 4 is rotated via a mechanism not shown in a position in which it is no longer held by the locking pin 5.
  • the locking element 4 cooperates with a switch 21, via which the device control 22 indicated by dashed lines senses the actuation of the locking device 4 for opening and / or closing and thereby recognizes both the opened state and the closed state.
  • the locking block 5 is fastened to a closing plate 7, which is linearly movable approximately ten centimeters in the opening direction of the door 3.
  • the motor is switched on via the device control 22 program- or state-dependent.
  • FIG. 2 shows in sectional side view of a rack used as a closing plate 7 8 is shown, at the end of the locking pin 5 is arranged in the form of an eyelet.
  • the rack 8 is arranged in a guide channel 9 above the washing container 2, wherein the guide channel 9 is mounted slightly inclined on the upper side wall 10 of the washing compartment 2.
  • an opening 11 for a pinion 12 is provided in the guide channel 9, in the guide channel 9, an opening 11 for a pinion 12 is provided. It also forms the area in which the pinion 12 meshes with the rack 8.
  • the pinion 12 is rotated by a tubular motor 13, possibly with the interposition of an integrated transmission (not shown).
  • switches 14 and 15 s. FIG.
  • the first opening position ( FIG. 3a ) characterized by a small gap width s 1 of about one centimeter and dimensioned so that it corresponds to the thickness of the seal 20 or slightly exceeds this.
  • the second opening position ( FIG. 3a )
  • the motor 13 moves the closing plate 7 into the second opening position (FIG. FIG. 3b ), so that the door 3 is opened to support the drying by a gap s 2 of about ten centimeters.
  • the engine 13 requires about ten seconds.
  • the drying support can be permanently adjusted, only be carried out when certain programs are selected or as a function of a sensor-determined value, which correlates with the degree of drying of the dishes located in the washing container 2 at the end of the program. As a measure of the degree of dryness, the sensory loading quantity and type, the temperature rise rate and the ambient conditions such as temperature at the site can serve.
  • the opening of the locking device 4 - both from the open at the gap s 2 position of the door 3 at the end of the program as well as from the closed position during the current program or a program that does not require drying support - is the device control 22 by opening the Switch 21 is detected.
  • the device controller 22 moves the closing plate 7 by means of the motor 13 in the first opening position ( 3d figure ). If the door 3 is locked again, it remains open until the gap s 1 ( FIG. 3a ) until the locking device 4 engages in the locking cam 5 and the switch 21 is closed. As a result, the door 3 is not yet in contact with the seal 20 and no effort has to be made by the user to squeeze them together.
  • the device controller 22 After the device controller 22 has detected the completion of the locking process, it moves the striker 7 by means of the motor 13 in the closed position ( Figure 3c ), in which the door with the interposition of the seal 20 closes the washing container 2.
  • the gap-wise opening is realized when the device controller 22 detects a device or operating error that hampers the smooth program flow.
  • the inlet tap may still be closed or the reservoir for rinse aid or regenerating salt (also not shown) are empty.
  • it moves the closing plate 7 by means of the motor 13 in the second opening position and it follows a well visible opening of the door 3 to the large gap s. 2
  • Such a gap opening is particularly advantageous in fully integrated dishwashers (not shown), since then the user can see the control panel on the top edge of the door and recognize warnings issued there.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Detergent Compositions (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The dishwasher has a plate (8) connected to the door latch (5) which can be extended across the gap between the top of the open door and the body of the machine. It can take up two positions, in one of which the gap is wider than the other. It is extended by a motor controlled by a proximity switch. An independent claim is included for a method for operating a dishwasher program, in which the door is opened to produce the narrow gap and then moved to the position with the wider gap, according to the frying of the dishes in the machine.

Description

Die Erfindung betrifft eine Geschirrspülmaschine mit einem Spülbehälter, der durch eine schwenkbare Tür unter Zwischenlage einer Dichtung verschließbar ist, und mit einer Gerätesteuerung, wobei zum Verschließen eine an der Tür angeordnete Verriegelungseinrichtung in einen am Spülbehälter angeordneten Schließkloben greift, und wobei zum spaltweisen Öffnen der Tür durch die Gerätesteuerung der Schließkloben an einer mittels eines Motors verstellbaren Schließplatte angeordnet ist. Die Erfindung betrifft außerdem Verfahren zur Durchführung eines Spülprogramms in einer solchen Geschirrspülmaschine.The invention relates to a dishwasher with a washing container, which can be closed by a hinged door with the interposition of a seal, and with a device control, wherein for locking a door arranged on the locking device engages in a arranged on the washing container locking block, and wherein the gap-wise opening of the door is arranged by the device control of the locking bolt on an adjustable by means of a motor closing plate. The invention also relates to methods for carrying out a washing program in such a dishwasher.

Aus dem Stand der Technik ist beispielsweise aus der DE 44 43 849 eine Spülmaschine bekannt, bei der der Schließkloben an einer Schließplatte angeordnet ist und die Schließplatte exzentrisch an einem Motor gelagert ist. Hierdurch kann die Spülbehältertür nach dem Reinigungs- und Klarspülzyklus automatisch einen Spalt geöffnet werden, so dass die verbleibende Restfeuchte durch natürliche Konvektion entweicht. Obwohl der dort beschriebene Öffnungsmechanismus für den Trocknungsvorgang eine Verbesserung darstellt, ergeben sich dennoch Nachteile, die darin gesehen werden, dass die dort beschriebene Öffnungseinrichtung nicht den hinreichenden Öffnungsgrad bewerkstelligen kann. Denn ein entsprechender Öffnungsgrad wird insbesondere dann gefordert, wenn die Geschirrspülmaschine in einer Küchenzeile eingebaut ist und im oberen Bereich durch eine Arbeitsplatte abgedeckt wird. Bei dem in der DE 44 43 849 dargestellten Ausführungsbeispiel kondensiert die heiße, feuchtigkeitsbeladene Luft an der Unterseite der kalten Arbeitsplatte, was zu deren Zerstörung führen kann.From the prior art is for example from the DE 44 43 849 a dishwasher is known in which the locking bolt is arranged on a closing plate and the closing plate is mounted eccentrically on a motor. As a result, the rinsing container door can be automatically opened a gap after the cleaning and rinsing cycle, so that the remaining moisture escapes due to natural convection. Although the opening mechanism described there for the drying process is an improvement, nevertheless, there are disadvantages, which are seen in the fact that the opening device described therein can not achieve the sufficient degree of opening. For a corresponding degree of opening is required in particular when the dishwasher is installed in a kitchenette and is covered in the upper part by a worktop. In the in the DE 44 43 849 illustrated embodiment condenses the hot, moisture-laden air at the bottom of the cold worktop, which can lead to their destruction.

Ein anderer Nachteil wird darin gesehen, dass das Schließen der Tür nur unter hohem Druckaufwand oder durch Zuschlagen der Tür bewerkstelligt werden kann, weil insbesondere die aufzuwendende Druck- oder Zuschlagkraft gegen die federnde Türdichtung aufzubringen ist. Die Türschließung gestaltet sich daher insbesondere für Bedienpersonen mit geringer Kraft oft schwierig.Another disadvantage is seen in the fact that the closing of the door can be accomplished only under high pressure or by slamming the door, because in particular the expended pressure or aggregate force is applied against the resilient door seal. The door closure is therefore often difficult especially for operators with low power.

Aus der EP 0 687 439 A1 ist eine Geschirrspülmaschine bekannt, bei der ebenfalls nach dem Abschluss des Spül- und Trockenvorgangs die Tür spaltweise über einen motorisch verfahrbaren Schließkloben geöffnet wird. Hier verbleibt der Schließkloben nach dem Programmende in dieser leicht geöffneten Position. Dem Benutzer soll dadurch nach dem Entladen des Geräts das Schließen erleichtert werden, weil dann der Schließkloben durch den Motor in die Endstellung gezogen wird. Ein Nachteil dieser Lösung besteht darin, dass während der Unterstützung des Trocknungsvorgangs der Öffnungsspalt groß sein muss (siehe oben) und deshalb der Schließkloben weit in den Raum ragt. In dieser Stellung bildet der Kloben ein Verletzungsrisiko und kann außerdem leicht beschädigt werden.From the EP 0 687 439 A1 is a dishwasher known, in which also after the completion of the rinsing and drying process, the door is opened in columns by a motor-driven locking cam. Here the locking pin remains after the end of the program in this slightly open position. The user should thereby facilitate the closing after unloading the device, because then the locking pin is pulled by the motor in the end position. A disadvantage of this solution is that during To support the drying process, the opening gap must be large (see above) and therefore the locking block projects far into the room. In this position, the cock is a risk of injury and can also be easily damaged.

Der Erfindung stellt sich somit das Problem, eine Geschirrspülmaschine sowie ein Verfahren zur Durchführung eines Spülprogramms der eingangs genannten Art zu offenbaren, bei denen ein kontrollierter Öffnungs- und Verschlussvorgang der Tür möglich ist.The invention thus presents the problem to disclose a dishwasher and a method for carrying out a washing program of the type mentioned, in which a controlled opening and closing operation of the door is possible.

Erfindungsgemäß wird dieses Problem durch eine Geschirrspülmaschine bzw. durch Verfahren mit den Merkmalen der unabhängigen Ansprüche gelöst, vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den jeweils nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a dishwasher or by methods having the features of the independent claims, advantageous embodiments and developments of the invention will become apparent from the respective subsequent subclaims.

Die automatische Verfahrbarkeit der Schließplatte in zwei verschiedene Öffnungspositionen ermöglicht einerseits eine ausreichende Spaltöffnung zur Trocknung, bei der der Dampf aus dem Innenraum des Spülbehälters frei in die Umgebungsluft entweichen kann und andererseits die Schließplatte aus diesem störenden Zustand zurückgefahren werden kann und trotzdem in einer Lage positionierbar ist, in der die Tür leicht verriegelt werden kann.The automatic movability of the closing plate in two different opening positions allows on the one hand a sufficient gap opening for drying, in which the vapor from the interior of the washing can escape freely into the ambient air and on the other hand, the closing plate can be moved back from this disturbing state and still positioned in one position in which the door can be locked easily.

Hierzu ist es zweckmäßig, wenn die erste Spaltbreite derart bemessen ist, dass sie der Stärke der Dichtung entspricht oder diese geringfügig übersteigt und demzufolge ca. einen Zentimeter beträgt. Die zweite Spaltbreite sollte derart bemessen sein, dass die um diese Breite geöffnete Tür mit ihrer oberen Innenkante unter einer auf der Geschirrspülmaschine befindlichen Abdeckung oder Arbeitsplatte herausragt und demzufolge ca. zehn Zentimeter betragen.For this purpose, it is expedient if the first gap width is dimensioned such that it corresponds to the thickness of the seal or exceeds this slightly and therefore amounts to about one centimeter. The second gap width should be dimensioned such that the door opened by this width protrudes with its upper inner edge under a cover or worktop on the dishwasher and consequently amounts to approximately ten centimeters.

Durch die erfindungsgemäße Gestaltung der Geschirrspülmaschine sind mehrere vorteilhaft ausgebildete Verfahren zur Durchführung eines Spülprogramms möglich:Due to the design of the dishwasher according to the invention, several advantageously designed methods for carrying out a washing program are possible:

So kann zur Unterstützung der Trocknung die Gerätesteuerung zum Programmende die Schließplatte mittels des Motors in die zweite Öffnungsposition fahren. Dies ist insbesondere dann vorteilhaft, wenn die Feuchtigkeit des Geschirrs im Spülbehälter zum Programmende noch groß ist. Ein Indiz hierfür kann entweder das vom Benutzer eingestellte Programm sein, beispielsweise ein Gläserspülprogramm, ein Programm zum Spülen von Kunststoffgeschirr oder ein Automatikprogramm. Alternativ können sensorisch Werte ermittelt werden, die mit dem Grad der Trocknung korrelieren. Durch das weite Öffnen der Tür wird eine Rückbefeuchtung des Geschirrs vermieden und seine Abkühlung beschleunigt. Anschließend wird der Benutzer beim Schließen der Tür dadurch unterstützt, dass die Gerätesteuerung nach dem öffnen der Verriegelungseinrichtung die Schließplatte mittels des Motors in die erste Öffnungsposition fährt. Zur Durchführung dieses Verfahrens ist es notwendig, dass die Gerätesteuerung die Betätigung der Verriegelungseinrichtung zum Öffnen und/oder Schließen sensieren kann. Aufgrund der vorgelagerten Schließplattenposition wird dem Benutzer beim Schließen der Andruck der Tür gegen die Dichtung erspart und trotzdem ein Einrasten der Verriegelungseinrichtung in den Schließkloben gewährleistet. Es ist dann zweckmäßig, wenn die Gerätesteuerung nach dem Schließen der Verriegelungseinrichtung die Schließplatte mittels des Motors in die Schließposition fährt, in der die Tür unter Zwischenlage der Dichtung den Spülbehälter verschließt.Thus, in order to support the drying, the device control at the end of the program drive the closing plate by means of the motor in the second opening position. This is particularly advantageous if the moisture of the dishes in the washing is still large at the end of the program. An indication of this can either be the program set by the user, for example a glass rinse program, a program for rinsing plastic dishes or an automatic program. Alternatively, sensor values can be determined which correlate with the degree of drying. The wide opening of the door prevents rewet of the dishes and accelerates its cooling. Subsequently, the user is assisted in closing the door in that the device control moves the closing plate by means of the motor in the first open position after the opening of the locking device. To carry out this method, it is necessary that the device control can sense the operation of the locking device for opening and / or closing. Due to the upstream locking plate position is the user when closing the Pressure of the door against the seal spared and still ensures engagement of the locking device in the locking pin. It is expedient if the device control after closing the locking device, the closing plate by means of the motor moves into the closed position in which the door closes the rinsing container with the interposition of the seal.

Ein weiteres vorteilhaftes Verfahren ist dadurch gekennzeichnet, dass die Gerätesteuerung nach dem Erkennen eines Geräte- oder Bedienungsfehlers die Schließplatte mittels des Motors in die zweite Öffnungsposition fährt. Eine solche automatische Türöffnung im Fehlerfall ist insbesondere bei sogenannten vollintegrierfähigen Geschirrspülmaschinen vorteilhaft, da bei diesen Geräten das Bedienfeld samt der zugehörigen Anzeigevorrichtungen an der Oberkante der Tür angeordnet ist und deshalb nur bei geöffneter Tür eingesehen werden kann. Zur Vereinfachung der Bedienung kann nach dem Erkennen und der Beseitigung des Geräte- oder Bedienungsfehlers durch die Gerätesteuerung diese die Schließplatte mittels des Motors bei geöffneter Verriegelungseinrichtung in die erste Öffnungsposition oder bei geschlossener Verriegelungseinrichtung in die Schließposition fahren.A further advantageous method is characterized in that the device control drives the closing plate by means of the motor in the second opening position after detecting a device or operating error. Such automatic door opening in the event of a fault is particularly advantageous in so-called fully integrated dishwashers, since in these devices the control panel together with the associated display devices is arranged on the upper edge of the door and can therefore only be viewed when the door is open. To simplify the operation, after the detection and removal of the device or operating error by the device control, the latter can drive the closing plate into the closed position by means of the motor when the locking device is open in the first open position or with the locking device closed.

Zur einfachen Steuerung der Schließplatte in die jeweiligen Positionen ist es vorteilhaft, wenn die Gerätesteuerung den Motor über den Öffnungsstellungen und der Schließstellung zugeordnete Sensoren zur exakten Lageerfassung abschaltet.For easy control of the closing plate in the respective positions, it is advantageous if the device control switches off the engine via the open positions and the closed position associated sensors for exact position detection.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:

Figur 1
den Schließmechanismus einer erfindungsgemäß aufgebauten Geschirrspülmaschine 1 mit entferntem Deckel, entfernter Bedienblende und entferntem Türaußenblech, wobei
Figur 1 a
die geschlossene Tür 3 und
Figur 1 b
die spaltweise geöffnete Tür 3 zeigt;
Figur 2
die Schließplatte 7 in geschnittener Seitenansicht;
Figur 3
zeigt die Tür in verschiedenen Stellungen, wobei
Figur 3a
die Tür mit Schließplatte 7 in der ersten Öffnungsposition,
Figur 3b
die Tür mit Schließplatte 7 in der zweiten Öffnungsposition,
Figur 3c
die geschlossene Tür 3 und
Figur 3d
die vollständig geöffnete Tür 3 zeigt.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it:
FIG. 1
the closing mechanism of a dishwasher 1 constructed according to the invention with the cover removed, remote control panel and remote door outer panel, wherein
FIG. 1 a
the closed door 3 and
Figure 1 b
the gap-wise opened door 3 shows;
FIG. 2
the closing plate 7 in a sectional side view;
FIG. 3
shows the door in different positions, where
FIG. 3a
the door with the closing plate 7 in the first opening position,
FIG. 3b
the door with the closing plate 7 in the second opening position,
Figure 3c
the closed door 3 and
3d figure
the completely open door 3 shows.

Die Figuren 1 a und 1 b zeigen eine Geschirrspülmaschine 1, bei der zur besseren Darstellung des Schließmechanismus der Deckel, die Bedienblende und das Türaußenblech entfernt wurden. Die Geschirrspülmaschine 1 besitzt einen Spülbehälter 2, an dem eine Tür 3 schwenkbar zum Verschließen des Spülbehälters 2 angeordnet ist. Zur Verhinderung des Austritts von Spülflüssigkeit (nicht dargestellt) aus dem Spülbehälter 2 ist dieser mit einer umlaufenden Dichtung 20 versehen. Um die Tür in der geschlossenen Stellung zu halten, ist an der Tür ein gabelförmiges Verriegelungselement 4 angeordnet, welches in bekannter Weise drehbar gelagert ist und in seiner Verriegelungsstellung in einen auf dem Spülbehälter 2 angeordneten Schließkloben 5 eingreift. Zum Öffnen der Tür wird ein Griff 6 nach oben gedrückt und dabei das Verriegelungselement 4 über einen nicht dargestellten Mechanismus in eine Stellung gedreht, in der es nicht mehr vom Schließkloben 5 gehalten wird. Das Verriegelungselement 4 wirkt mit einem Schalter 21 zusammen, über den die gestrichelt angedeutete Gerätesteuerung 22 die Betätigung der Verriegelungseinrichtung 4 zum Öffnen und/oder Schließen sensiert und hierdurch sowohl den geöffneten Zustand als auch den geschlossenen Zustand erkennt. Um nun die Tür 3 ohne Betätigung des Griffs 6 programmgesteuert spaltweise öffnen zu können, ist der Schließkloben 5 an einer Schließplatte 7 befestigt, welche ca. zehn Zentimeter linear in Öffnungsrichtung der Tür 3 motorisch verfahrbar ist. Der Motor wird über die Gerätesteuerung 22 programm- oder zustandsabhängig eingeschaltet.The FIGS. 1 A and 1B show a dishwasher 1, in which the lid, the control panel and the door outer panel were removed for better representation of the closing mechanism. The dishwasher 1 has a washing container 2, on which a door 3 is arranged pivotally for closing the washing container 2. To prevent the Outlet of rinsing liquid (not shown) from the washing compartment 2, this is provided with a circumferential seal 20. To hold the door in the closed position, a fork-shaped locking element 4 is arranged on the door, which is rotatably mounted in a known manner and engages in its locking position in a arranged on the washing container 2 closing cam 5. To open the door, a handle 6 is pushed up while the locking member 4 is rotated via a mechanism not shown in a position in which it is no longer held by the locking pin 5. The locking element 4 cooperates with a switch 21, via which the device control 22 indicated by dashed lines senses the actuation of the locking device 4 for opening and / or closing and thereby recognizes both the opened state and the closed state. In order to be able to programmatically open the door 3 in columns without actuating the handle 6, the locking block 5 is fastened to a closing plate 7, which is linearly movable approximately ten centimeters in the opening direction of the door 3. The motor is switched on via the device control 22 program- or state-dependent.

Wie sich die Schließplatte 7 und sein Antrieb im Einzelnen darstellen, ergibt sich aus der Figur 2, wo in geschnittener Seitenansicht eine als Schließplatte 7 verwendete Zahnstange 8 dargestellt ist, an der endseitig der Schließkloben 5 in Form einer Öse angeordnet ist. Die Zahnstange 8 ist dabei in einem Führungskanal 9 oberhalb des Spülbehälters 2 angeordnet, wobei der Führungskanal 9 leicht geneigt auf der oberen Seitenwand 10 des Spülbehälters 2 befestigt ist. Im Führungskanal 9 ist eine Öffnung 11 für ein Ritzel 12 vorgesehen. Sie bildet auch den Bereich, in dem das Ritzel 12 mit der Zahnstange 8 kämmt. Das Ritzel 12 wird von einem Rohrmotor 13, eventuell unter Zwischenschaltung eines integrierten Getriebes (nicht dargestellt) gedreht. Dabei sind neben dem Führungskanal Positionsschalter 14 und 15 (s. Figur 1a, 1b) angeordnet, die der Gerätesteuerung 22 das Erreichen von bestimmten Positionen der Zahnstange 8 anzeigen. Alternativ sind auch Linear- oder Drehpotentiometer oder optische Sensoren zur exakten Lageerfassung der Zahnstange 8 denkbar. Über den hinteren Positionsschalter 14 wird das Schließen der Tür 3 sensiert. Der vordere Positionsschalter 15 wirkt mit zwei beabstandeten Nocken (nicht dargestellt) an der Zahnstange 8 zusammen, so dass diese von der Gerätesteuerung 22 über den Rohrmotor 13 in zwei verschiedene Öffnungspositionen gefahren werden kann, wie in den Figuren 3a und 3b gezeigt ist. Dabei ist die erste Öffnungsposition (Figur 3a) durch eine geringe Spaltbreite s1 von ca. einem Zentimeter gekennzeichnet und so bemessen, dass sie der Stärke der Dichtung 20 entspricht oder diese geringfügig übersteigt. Die zweite Öffnungsposition (Figur 3b) ist durch eine große Spaltbreite s2 von ca. zehn Zentimetern gekennzeichnet und demzufolge so bemessen, dass die um diese Breite geöffnete Tür 3 mit ihrer oberen Innenkante unter einer auf der Geschirrspülmaschine befindlichen Abdeckung 23 oder Arbeitsplatte herausragt. Die weiteren Figuren zeigen die Geschirrspülmaschine bei geschlossener Tür 3 (Figur 3c) und bei vollständig geöffneter Tür 3 (Figur 3d).How the closing plate 7 and its drive are in detail, results from the FIG. 2 , where in sectional side view of a rack used as a closing plate 7 8 is shown, at the end of the locking pin 5 is arranged in the form of an eyelet. The rack 8 is arranged in a guide channel 9 above the washing container 2, wherein the guide channel 9 is mounted slightly inclined on the upper side wall 10 of the washing compartment 2. In the guide channel 9, an opening 11 for a pinion 12 is provided. It also forms the area in which the pinion 12 meshes with the rack 8. The pinion 12 is rotated by a tubular motor 13, possibly with the interposition of an integrated transmission (not shown). In this case, in addition to the guide channel position switches 14 and 15 (s. FIG. 1a, 1b ), which indicate the device controller 22 reaching certain positions of the rack 8. Alternatively, linear or rotary potentiometer or optical sensors for exact position detection of the rack 8 are conceivable. About the rear position switch 14, the closing of the door 3 is sensed. The front position switch 15 cooperates with two spaced cams (not shown) on the rack 8, so that they can be moved by the device controller 22 via the tubular motor 13 in two different opening positions, as in the FIGS. 3a and 3b is shown. The first opening position ( FIG. 3a ) characterized by a small gap width s 1 of about one centimeter and dimensioned so that it corresponds to the thickness of the seal 20 or slightly exceeds this. The second opening position ( FIG. 3b ) is characterized by a large gap width s 2 of about ten centimeters and thus dimensioned so that the open at this width door 3 protrudes with its upper inner edge under a cover located on the dishwasher 23 or countertop. The further figures show the dishwasher with the door closed 3 ( Figure 3c ) and with completely open door 3 ( 3d figure ).

Die Funktionsweise der vorbeschriebenen Anordnung ist im Folgenden beschrieben:The operation of the above-described arrangement is described below:

Am Programmende fährt der Motor 13 die Schließplatte 7 in die zweite Öffnungsposition (Figur 3b), so dass die Tür 3 zur Unterstützung der Trocknung um einen Spalt s2 von ca. zehn Zentimetern geöffnet wird. Der Motor 13 benötigt hierzu ca. zehn Sekunden. Die Trocknungsunterstützung kann dauerhaft eingestellt sein, nur bei der Anwahl bestimmter Programme durchgeführt werden oder in Abhängigkeit eines sensorisch ermittelten Werts, der mit dem Grad der Trocknung des im Spülbehälter 2 befindlichen Geschirrs zum Programmende korreliert, erfolgen. Als Maß für den Trocknungsgrad kann die sensorisch ermittelte Beladungsmenge und -art, die Temperaturanstiegsgeschwindigkeit und die Umgebungsbedingungen wie Temperatur am Aufstellungsort dienen. Das Öffnen der Verriegelungseinrichtung 4 - sowohl aus der um den Spalt s2 geöffneten Position der Tür 3 nach Programmende als auch aus der geschlossenen Position während des laufenden Programms oder nach einem Programm, welches keine Trocknungsunterstützung benötigt - wird von der Gerätesteuerung 22 durch das Öffnen des Schalters 21 erkannt. Sobald die Tür 3 entriegelt ist, fährt die Gerätesteuerung 22 die Schließplatte 7 mittels des Motors 13 in die erste Öffnungsposition (Figur 3d). Wird die Tür 3 wieder verriegelt, bleibt sie solange um den Spalt s1 geöffnet (Figur 3a), bis die Verriegelungseinrichtung 4 in den Schließkloben 5 eingreift und der Schalter 21 geschlossen ist. Dadurch kommt die Tür 3 noch nicht in Kontakt mit der Dichtung 20 und es muss vom Benutzer kein Kraftaufwand erbracht werden, um diese zusammen zu pressen. Nachdem die Gerätesteuerung 22 die Beendigung des Verriegelungsvorgangs erkannt hat, fährt sie die Schließbügel 7 mittels des Motors 13 in die Schließposition (Figur 3c), in der die Tür unter Zwischenlage der Dichtung 20 den Spülbehälter 2 verschließt.At the end of the program, the motor 13 moves the closing plate 7 into the second opening position (FIG. FIG. 3b ), so that the door 3 is opened to support the drying by a gap s 2 of about ten centimeters. The engine 13 requires about ten seconds. The drying support can be permanently adjusted, only be carried out when certain programs are selected or as a function of a sensor-determined value, which correlates with the degree of drying of the dishes located in the washing container 2 at the end of the program. As a measure of the degree of dryness, the sensory loading quantity and type, the temperature rise rate and the ambient conditions such as temperature at the site can serve. The opening of the locking device 4 - both from the open at the gap s 2 position of the door 3 at the end of the program as well as from the closed position during the current program or a program that does not require drying support - is the device control 22 by opening the Switch 21 is detected. Once the door 3 is unlocked, the device controller 22 moves the closing plate 7 by means of the motor 13 in the first opening position ( 3d figure ). If the door 3 is locked again, it remains open until the gap s 1 ( FIG. 3a ) until the locking device 4 engages in the locking cam 5 and the switch 21 is closed. As a result, the door 3 is not yet in contact with the seal 20 and no effort has to be made by the user to squeeze them together. After the device controller 22 has detected the completion of the locking process, it moves the striker 7 by means of the motor 13 in the closed position ( Figure 3c ), in which the door with the interposition of the seal 20 closes the washing container 2.

Ein weiterer Anwendungsfall der spaltweisen Öffnung wird realisiert, wenn die Gerätesteuerung 22 einen Geräte- oder Bedienungsfehler erkennt, der den reibungslosen Programmablauf behindert. So kann beispielsweise der Zulaufhahn (nicht dargestellt) noch geschlossen sein oder die Vorratsbehälter für Klarspülmittel oder Regeneriersalz (ebenfalls nicht dargestellt) sind leer. In diesem Fall fährt sie die Schließplatte 7 mittels des Motors 13 in die zweite Öffnungsposition und es folgt eine gut sichtbare Öffnung der Tür 3 um den großen Spalt s2. Eine solche Spaltöffnung ist insbesondere bei vollintegrierten Geschirrspülmaschinen (nicht dargestellt) vorteilhaft, da dann der Benutzer das Bedienfeld auf der Oberkante der Tür einsehen und dort ausgegebene Warnhinweise erkennen kann. Nachdem der Geräte- oder Bedienungsfehler durch den Benutzer oder einen Kundendienstmonteur behoben ist, erkennt dies die Gerätesteuerung 22 und fährt anschließend die Schließplatte 7 mittels des Motors 13 bei geöffneter Verriegelungseinrichtung 4 in die erste Öffnungsposition oder bei geschlossener Verriegelungseinrichtung 4 in die Schließposition.Another application of the gap-wise opening is realized when the device controller 22 detects a device or operating error that hampers the smooth program flow. Thus, for example, the inlet tap (not shown) may still be closed or the reservoir for rinse aid or regenerating salt (also not shown) are empty. In this case, it moves the closing plate 7 by means of the motor 13 in the second opening position and it follows a well visible opening of the door 3 to the large gap s. 2 Such a gap opening is particularly advantageous in fully integrated dishwashers (not shown), since then the user can see the control panel on the top edge of the door and recognize warnings issued there. After the device or operating error is corrected by the user or a customer service technician, this detects the device controller 22 and then moves the closing plate 7 by means of the motor 13th when the locking device 4 is open in the first open position or when the locking device 4 is closed in the closed position.

Claims (12)

  1. Dishwasher (1) including a washing container (2), which is closable by means of a pivotable door (3) with a seal (20) located in-between, and including an appliance control (22), wherein, for closing, a locking device (4) that is disposed on the door (3) engages a clamping block (5) that is disposed on the washing container (2), and wherein for opening the door (3) slightly by means of the appliance control (22), the clamping block (5) is disposed on a closure plate (7) that is adjustable by means of a motor, characterised in that the closure plate (7) is moveable into two different opening positions and can be positioned in two different opening positions, wherein the first opening position is characterised by a slight gap width (s1) by which the door (3) is opened, and the second opening position is characterised by a large gap width (s2) by which the door (3) is opened.
  2. Dishwasher (1) according to claim 1, characterised in that the slight gap width (s1) is measured in such a manner that it corresponds to the density of the seal (20) or slightly exceeds the density of the seal.
  3. Dishwasher (1) according to claim 2, characterised in that the slight gap width (s1) is approximately one centimetre.
  4. Dishwasher (1) according to at least one of claims 1 to 3, characterised in that the large gap width (s2) is measured in such a manner that the door (3) opened by the said width extends with its upper inside edge under a cover (23) or operating plate located on the dishwasher (1).
  5. Dishwasher (1) according to claim 4, characterised in that the large gap width (s2) is approximately ten centimetres.
  6. Method for accomplishing a wash program in a dishwasher (1) in accordance with at least one of the preceding claims, characterised in that at the end of the program, the appliance control (22) moves the closure plate (7) by means of a motor (13) into the second opening position and in that once the locking device (4) has been opened, the appliance control (22) moves the closure plate (7) by means of the motor (13) into the first opening position.
  7. Method for accomplishing a wash program according to claim 6, characterised in that the closure plate (7) is moved into the second opening position in dependence on the wash program selected.
  8. Method for accomplishing a wash program according to claim 6, characterised in that the closure plate (7) is moved into the second opening position in dependence on a value determined in a sensory manner, the said value correlating with the degree of drying of the washed items in the washing container (2) at the end of the program.
  9. Method for accomplishing a wash program according to at least one of claims 6 to 8, characterised in that the appliance control (22), once the locking device (4) has been closed, moves the closure plate (7) by means of the motor (13) into the closed position, in which the door (3) closes the washing container (2) with a seal (20) being placed in between.
  10. Method for accomplishing a wash program in a dishwasher (1) according to one of claims 1 to 5, more especially a method according to one of claims 6 to 9, characterised in that the appliance control (22), once it has recognised an appliance error or an operator error, moves the closure plate (7) by means of the motor (13) into the second opening position.
  11. Method for accomplishing a wash program according to claim 10, characterised in that the appliance control (22) recognises the elimination of the appliance error or of the operator error and subsequently moves the closure plate (7) by means of the motor (13), with the locking device (4) open, into the first opening position or, with the locking device (4) closed, into the closed position.
  12. Method for accomplishing a wash program according to at least one of the claims 6 to 11, characterised in that the appliance control (22) switches off the motor (13) by means of sensors for precise position detection (14, 15) that are associated with the opening positions and the closed position.
EP06009187A 2005-06-17 2006-05-04 Dishwasher having a washing tub closable by door, and corresponding dishwashing method Active EP1733675B1 (en)

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PL06009187T PL1733675T3 (en) 2005-06-17 2006-05-04 Dishwasher having a washing tub closable by door, and corresponding dishwashing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005028449A DE102005028449B4 (en) 2005-06-17 2005-06-17 Dishwasher with a washing container, which can be closed by a door, and method for performing a washing program in such a dishwasher

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EP1733675A2 EP1733675A2 (en) 2006-12-20
EP1733675A3 EP1733675A3 (en) 2007-09-26
EP1733675B1 true EP1733675B1 (en) 2008-09-17

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US (1) US7896972B2 (en)
EP (1) EP1733675B1 (en)
AT (1) ATE408366T1 (en)
DE (2) DE102005028449B4 (en)
ES (1) ES2309860T3 (en)
PL (1) PL1733675T3 (en)

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EP4026475A1 (en) 2021-01-11 2022-07-13 LG Electronics Inc. Control method of dishwasher

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Publication number Publication date
DE102005028449B4 (en) 2007-03-08
DE102005028449A1 (en) 2006-12-21
ATE408366T1 (en) 2008-10-15
EP1733675A2 (en) 2006-12-20
DE502006001578D1 (en) 2008-10-30
US7896972B2 (en) 2011-03-01
EP1733675A3 (en) 2007-09-26
US20060283482A1 (en) 2006-12-21
PL1733675T3 (en) 2008-12-31
ES2309860T3 (en) 2008-12-16

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