EP2548494B1 - Dishwasher, in particular domestic dishwasher, with a door lock, and associated door lock - Google Patents

Description

The invention relates to a dishwasher, in particular a domestic dishwasher, with a rinsing container whose feed opening can be closed by a door, and with a determination device for determining the position of the door, wherein the determination device comprises a signal generator and a signal receiver.

For safety reasons, a dishwashing machine, in particular a household dishwasher, often has a detection device for detecting the position of its door, which device comprises a signal generator and a signal receiver. This detection device is used in particular to check whether the door of the dishwasher is properly closed in its closed end position. Such a dishwasher can usually only be put into operation, i. a selected Geschirrspülprogramm is started by the control device of the dishwasher, in particular only when their detection device has determined that the door is properly closed. In practice, however, especially with manufacturing tolerances, e.g. with respect to the dimensions of the loading opening of the washing container, the bearing clearance of the door hanger, etc. ..., be difficult to correctly detect the closing end position of the door. Thus, it may happen that the detection means erroneously detects an opening position of the door as the closing end position, although the door has not quite reached its Schließendposition in their respective closing operation. Then the respectively selected dishwasher program would be started by the control device of the dishwasher, although a door gap would still be open and the door would not have been tightly closed. As a result, rinsing liquor liquid could be sprayed out of the interior of the dishwashing container of the dishwasher during its rinsing operation, which is undesirable and, in particular for safety reasons, inadmissible.

From the DE 10 2007 031 886 A1 a household appliance with a door and door position detecting means for detecting an open or closed door position is known. In this case, the door position detecting means open and closed door position a the door position corresponding, in particular deviating from zero signal ready.

From the DE 38 42 639 A1 a device for locking a door on a dishwasher with a border of the door frame is known. To create a pressure equalization in case of sudden expansion of the air-vapor mixture while avoiding unwanted leakage of large amounts of energy by flowing steam a recess is mounted on the edge of the door and a closure member is resiliently biased held on the frame and inserted into the recess of the edge when closing the door.

The invention is based on the object of providing a dishwasher, in particular a domestic dishwasher, with an improved detection device for determining the respective position, in particular the closing end position, of its door.

This object is achieved in a dishwasher, in particular household dishwasher, of the type mentioned above in that a movably held element is provided in or on the washing container, in and / or at the signal generator or the signal receiver of the detection device for determining the position of the door, in particular whose closing end position is arranged.

By such in or on the washing container movably held element for the signal generator or signal receiver of the detection device can be in a simple manner the respective position, in particular Schließendposition or closing the door in their closing operation, and / or leaving the Schließendstellung the door at their respective opening operation , improved detect or detect by the control device of the dishwasher according to the invention.

The inventive arrangement of either the signal generator or the signal receiver of the device in and / or on the movably held element for Detecting the position of the door makes it possible according to an advantageous embodiment of the invention in particular, for example, when closing the door signal generator and signal receiver shortly before reaching the closing end of the door regardless of the closing movement of the door again moved away from each other and abruptly when reaching the Schließendposition the door abruptly to be moved. By arranging either the signal transmitter or the signal receiver in and / or on the movably held element, it is thus possible in particular to briefly move the signal transmitter and signal receiver moving towards one another during the respective closing operation of the door by means of a movement opposite thereto, specifically provided by the movably held element before reaching their end positions in the final closing position of the door again remove each other, so then then upon reaching the closing end position of the door by means of the element held abruptly Aufeinanderzubewegen of signal generator and signal receiver an abrupt, ie jump-like undershooting of a critical distance between the signal generator and the Signal receiver with a concomitant steep increase in the received signal level of the signal receiver is possible. Only when falling below this certain, critical distance between the signal generator and the signal receiver detects the determination device that the Schließendposition the door is reached.

The fact that either the signal generator or the signal receiver with the aid of the movably held element receives at least one additional degree of freedom of movement, when reaching the closing end of the door a defined approach, in particular a faster approach, the signal generator to the signal receiver (and vice versa) than in a merely stationary, stationary arrangement of signal generator and signal receiver on the door and / or the washing container of the dishwasher can be achieved, which would only lead to a continuous approach of signal generator and signal receiver and thus to a continuous reception level profile of the signal receiver when closing the door. In contrast, with the aid of the additional, movably held element, the signal transmitters and the signal receivers can be jerked toward one another, which is accompanied by a sudden change in the received signal level of the signal receiver when the door reaches a certain door position, in particular its closing end position, in which it Charging opening of the washing liquid-tight and / or vapor-tight. This sudden, significant change in the received signal level profile of the signal receiver over the duration of the respective closing operation of the door can be clearly detected by the controller of the dishwasher as a specific event, so that from her the time when the door actually reaches its closing position a continuous approximation of signal generator and signal receiver and associated continuous signal reception level curve can be detected improved.

Conversely, in the respective opening of the door in an advantageous manner that abruptly move away from each other by the inventive arrangement of the signal generator or the signal receiver and / or on movably held element of the signal generator and the signal receiver largely independent of the opening movement of the door when leaving the Schließendstellung can let the control device of the dishwasher and the exit of the final closing position of the door are clearly recorded or registered. Because with this abrupt, abrupt removal of signal generator and signal receiver from each other, the signal reception level of the signal receiver drops abruptly, which can serve as a specific, significant detection criterion for the control device that the door leaves its Schließendstellung.

According to an advantageous embodiment of the invention as a movably held element is provided a closing piston or locking pin of a door lock. In particular, the movably held element is part of a door lock housing. As a result, the signal transmitter or signal receiver of the detection device according to the invention can be accommodated in the components of the door lock, in particular integrated. The closing piston of the door lock housing thus has a double function: on the one hand, it serves as a mechanical locking or closing element for fixing or holding, in particular for locking, the door in its final wear position on the washing compartment. On the other hand, it comprises one of the two main components, ie signal transmitter or signal receiver, the position detection device according to the invention. This ensures that the signal generator or signal receiver, which is mounted in and / or on the closing piston, participates in its movements. When the closing piston of a door lock housing designed in such an advantageous manner is provided, for example, at the front edge region, in particular centrally at the front, upper edge section of the washing container, in the closing end position of the door into a corresponding counterpart such as, for example, a recess, in particular a closing recess, corresponding to the position Door lock housing in the middle region of the upper edge portion and / or upper cheek portion of the door, in particular the door frame member or the inner door, is provided, introduced and engages in this, its closing movement is largely independent, ie decoupled from the pivotal movement of the door, in particular their bearing clearance, or other tolerances such as the rinse tank. It can always be brought into a defined closed position or locked position, so that, for example, the signal generator attached to and / or always be brought into a definite positional relationship relative to its counterpart, a signal receiver, in and / or on the door in its closing end position can. By this defined assignment of signal generator and signal receiver, the closing end position and / or the respective opening position of the closing piston of the door in a reliable manner by the control device of the dishwasher can be detected and monitored. In particular the detection device according to the invention is thus largely insensitive to misalignments such as inclinations or tilted positions of the door relative to the entrance surface of the feed opening.

In particular, it may be expedient if the movably held element is designed to be acted upon by a clamping force, by which it can be pressed from a release position into a closed position. As a result, an abrupt, sudden Voneinanderwegbewegung and / or Aufeinanderzubewegung of signal generator and signal receiver to change the received signal level of the signal receiver largely independent of the respective closing movement or opening movement of the door produce in a structurally simple manner, the characteristic when reaching a certain position of the door for this or is specifically assignable.

Conveniently, the movably held member may be provided with a tensioning force of a resilient material such as e.g. Spring steel, to be made. Additionally or independently thereof, the movably held element, in particular for applying a clamping force with a resilient element, preferably a spring, be operatively connected.

According to an advantageous development, the movably held element is held in such a way, in particular suspended or stored, that it is linearly displaceable. This allows him a simple reciprocating motion back and forth, which can bring signal generator and signal receiver in different position relative to each other for the purpose of changing the received signal level of the signal receiver. With the aid of this targeted change, a specific position of the door, in particular its closing end position, can be specifically marked or marked and recognized by the control device of the dishwasher.

According to a further advantageous embodiment of the invention, the movably held element is held in particular such that it is a linear up and to-lifting movement substantially orthogonal to an overlapping zone is possible, which is formed between the washing and the door in the region of their closing end. Since the door in its Schließendposition in the front edge region of the washing, in particular its front edge element or frame element, immersed, can This overlapping zone can be used particularly advantageously as a reference plane, ie in general terms as a reference for the linear movement of the movably held element. This linear opening and closing movement can also be realized in a structurally simple manner with simple components of a door lock. This can be advantageously trained as a "snap lock".

According to an advantageous embodiment of the invention, the signal generator and the signal receiver of the detection device the washing compartment and the door in particular assigned such that they are in the final closing position of the door, in particular along an imaginary connecting line largely aligned opposite each other. Thus, in the closing end position of the door to be detected, the signal transmitter and signal receiver advantageously approach each other so closely that a sufficiently strong, perfectly detectable received signal can be generated by the signal receiver due to the opposite signal generator. In the closing end position of the door, the buzzer and the signal receiver preferably have the shortest distance from each possible distance between them during a door closing or opening operation. In this way, defined positional relationships for the signal generator and the signal receiver in the final closing position of the door are always predetermined, so that they can be reliably detected by the control device of the dishwasher due to the generated received signal level in the signal receiver.

According to the invention, the movably held element is provided in and / or on the washing container and assigned to it a recess, in particular a closing recess, in and / or on the door, in particular positionally corresponding in the closing end position of the door. In this case, the signal receiver may preferably be provided in and / or at the recess and the signal transmitter in and / or at the free, in the direction of the recess facing the end of the movably held element. The accommodation of the signal receiver as a fixed component in and / or on the recess of the door is particularly useful because thereby the routing of one or more control and / or data lines between the signal receiver and the control device of the dishwasher stationary, ie may be fixed and so that is simplified. In particular, it may be expedient if the signal generator is designed as a passive component, the works without electrical control and / or data lines from and to the control device of the dishwasher. In particular, may be provided as a signal receiver, a Hall sensor and a signal generator, a magnet. These are available as reliable standard components.

Preferably, it may be expedient if the inner contour of the recess, in particular closing recess, is substantially complementary to the outer contour of the recess associated, freely projecting end of the movably held element, in particular Schließklobens, is formed. This makes it possible to improve the hold of the well associated with the free-standing end of the movably held element, in particular Schließklobens, in the recess in the final closed position of the door. It is therefore a clear relative position between the freely projecting in the direction of the recess, movably held element with the signal generator and the recess with the signal receiver to each other in the Schließendposition the door improves securable.

Alternatively, it is of course also possible to exchange the positions of signal generator and signal receiver. Possibly. it may also be convenient to change the positions of the element and recess on the and / or washing container and on and / or in the door, that is to say they are movable. to swap.

According to an advantageous embodiment of the invention, the contact surfaces of the movably held element and the recess are formed and associated with each other, that when moving the door from its closed end position in an open position, the movably held element and the recess with contact surfaces slide together, the steeper than those contact surfaces the movably held element and the recess, which slide when moving the door from an open position to its closed end position. This makes it possible to close the door with a relatively low compressive force (viewed in the depth direction) and to bring their Schließendposition while on the other hand, a much higher tensile force or tearing force for moving out of the door from its Schließendstellung is applied. Characterized in that when moving the door out of its closed position in an open position, the movably held element and the recess with contact surfaces slide together, the steeper than those contact surfaces of the movably held Elements and the recess are that slide when moving the door of an open position in their Schließendstellung, so in a structurally quite simple manner, in particular only by appropriate surface design, be ensured that the door in its Schließendstellung by a sufficiently high holding force or pressure force is positionally secured against accidental opening between the steeper contact surfaces of movably held element and depression.

Since the movably held element is mounted in and / or on the washing compartment and the associated recess in and / or on the door, it is provided according to the invention that the recess, in particular the closing recess, at its front, the front side of the door closer wall flank a flatter Bevel as at its rear, the front of the door more distant wall edge has. Corresponding thereto, the free end of the movably held element expediently has a steeper bevel on its contact surface facing the interior of the washing container than on its contact surface remote from the interior of the washing container.

In particular, it may be expedient if the movably held element with the signal generator, in particular a magnet, is provided approximately in the middle region of the upper, front edge region of the washing container, and the element held movably has a depression, in particular a closing depression, with the signal receiver, in particular a reverb - Sensor, substantially corresponding position in the region of the upper edge and / or upper jaw portion of the door, in particular the inner door frame, is assigned. By this central arrangement are unacceptably high, especially unilateral, mechanical stresses or even deformations of the door lock housing with the movably held element, in particular its signal generator, the recess, in particular their signal receiver, the washing and / or other components of the dishwasher when opening and closing the door largely avoided.

In particular, the following embodiments may be appropriate:
According to a particularly advantageous embodiment of the invention may be provided in the dishwasher according to the invention that the movably held element with a clamping force, in particular spring preload by means of a elastic spring element, can be acted upon. The determination device according to the invention comprises a first and a second determination element. These can be formed by a signal generator and an associated signal receiver. When approaching the first detection element to the second detection element by a Zumachbewegung, in particular closing pivotal movement of the door, the clamping force can first be increased to the movably held element before the increased clamping force moves the movably held element abruptly in the direction of the signal receiver. That is, the first detection element of the detection device, such as its signal transmitter, arranged on and / or in the movably held element, is first removed from the second detection element, counter to a corresponding clamping force, shortly before approaching the corresponding other, second element of the detection device, such as its signal receiver from a certain distance to the second detection element quickly fed to the second element due to the clamping force. As a result, the signal receiver recognizes the signal transmitter only when it is located exactly in front of the signal receiver. Of course, in this case, the positions or locations of signal generator and signal receiver can also be reversed.

According to another expedient development of the invention can be provided in the dishwasher that the movably held element is a closing piston of a door lock, which is designed to lock the door. The device may be part of a door lock, which is designed to lock the door in a Schließendposition in a particularly advantageous manner. Thus, in particular, the signal transmitter or, if the two determination elements are reversed, the signal receiver may also be arranged in or on a movably held closing piston of a door lock. By combining the device with a door lock no two separate components are required, whereby the dishwasher can be made simplified again.

In particular, a dishwasher may be expedient in which the signal transmitter or the signal receiver of the device for detecting the position of the door in such and / or on the door, in particular its outer cheek or inner door, and in and / or on the washing, preferably the front edge region , In particular Spülbehälterrahmenelement, are arranged to be in a Schließendposition the Door facing each other, in particular, in alignment. That is, one of the elements, the signal generator or the signal receiver, is in and / or on the door, in particular its inner door, and the other of the elements is arranged in and / or on the washing container, in particular its front, upper edge region. As a result, the signal transmitter and the signal receiver are supplied to each other when closing the door. For example, the signal receiver in the wall material of the door, in particular its outer cheek or inner door, preferably in the frame of the door or inner door forming material einitzen. In this embodiment, corresponding to the signal receiver, the signal generator in and / or on a wall element of the washing container, in particular its front, upper edge portion, or the Spülbehälterrahmenelementes, in particular on the feed opening facing side of the wall element can be arranged. The wall element may for example be a Spülbehälterseitenwandung, preferably the Spülbehälterdeckenwandung or the Spülbehälterbodenwanne. The same applies to the case in which the rinsing container has a rinsing container frame element or rinsing container edge element in the region of its front loading opening. Again, the wall element may be a top wall, a side wall or a bottom wall of the Spülbehälterrahmenelementes or Spülbehälterrandelements.

According to a particularly expedient development of the invention can be provided in the dishwasher according to the invention that the signal receiver in or at the bottom of a recess in the door, in particular an inner door of the door, and / or in or on the bottom portion of a recess in the washing, in particular a Spülbehälterrahmenelement is arranged. The depression serves as a guide for the movably held element among others. That is, the movable element is pressed in the closing end position of the door due to the force acting on it clamping force into the recess. As a result, the movably held element with the signal generator can be automatically correctly centered in front of the signal receiver provided in the bottom region. This ensures a precise positioning of the signal generator and the signal receiver to each other. The indentation represents a recess in the door, its outer wall or inner door, or the washing container or the Spülbehälterrahmenelement. Preferably, the recess in the outer cheek or the frame of the door or inner door of the door or in the inside of the washing compartment, in particular the Spülbehälterrahmenelementes imprinted. Possibly. the position of signal generator and signal receiver can also be reversed such that the signal receiver is provided in and / or on the movably held element and the signal generator is associated with the recess.

According to a further expedient development of the invention, it can be provided in the dishwasher according to the invention that the signal generator or, alternatively, the inner edge of the door, in particular the inner edge of the inner door, is arranged in and / or on the door or the inner door with the signal receiver arranged in the opposite direction or that the signal generator or, alternatively, in the case of a reverse arrangement of the signal receiver, is arranged at a distance from the outer edge of the rinsing container, in particular the rinsing container frame element, in and / or on the rinsing container, in particular the rinsing container frame element. This ensures that the device for determining the position of the door will not detect a closing end position of the door until it actually closes the feed opening of the dishwashing container of the dishwasher.

According to a further, particularly expedient development of the invention, it can be provided in the dishwasher that (in the direction of view in the depth direction of the door) between the signal receiver arranged in and / or on the door or inner door and the inner edge of the door, in particular the inner edge of the inner door , a projection or an increase is provided. Alternatively or additionally, it may be expedient if (in the direction of view in the depth direction of the rinsing container) between the signal transmitter held by the movably held element in and / or on the rinsing container, in particular the rinsing container frame element, and the outer edge of the rinsing container, in particular of the rinsing container frame element Projection or an increase is provided. By the projection or the increase the movably held element, which is held in particular linearly displaceable, moved during the closing of the door and thereby arranged in or on the element signal generator shortly before reaching the Schließendposition the door of the corresponding complementary element, ie the signal receiver removed. This ensures that the signal generator and the signal receiver do not recognize themselves early and thus a change of state of the door is detected rashly. If the door is closed further, the movably held element, and thus the signal generator, abruptly moves in the direction of the force due to the clamping force acting on it complementary element, ie here the signal receiver, moves and positioned in front of this. There is thus a quick transition to the closing end position or holding position of the movably held element. Such a design of the dishwasher avoids premature or incorrectly determining a closing end position of the door by the control device of the dishwasher, although this has not yet been achieved. The projection or the elevation may preferably be on the peripheral outer edge or outer cheek, in particular upper outer cheek, or the frame of the door or its inner door and / or on the inside of the washing container facing the feed opening in the front edge region or on the inner side facing the feed opening Spülbehälterrahmenelementes or edge element may be arranged. The protrusion or the elevation can be designed such that, starting from the inner edge of the door or the inner door or from the outer edge of the washing container or the Spülbehälterrahmenelementes first a flat rise takes place and in the last area a steep drop is provided. This allows the movable element, which slides along the projection or the elevation, to be abruptly guided towards the corresponding element of the detection device, which is not arranged in or on the movably held element. The above explanations apply, of course, to the case in which the positions of the signal generator and the signal receiver and / or the positions of the movably held element and the corresponding recess are reversed.

According to a further advantageous embodiment of the invention can thus be provided in the dishwasher according to the invention, that the projection or the increase by an area of the cheek or the frame of the door, in particular the inner door between the inner edge of the door, in particular the inner door, and the Recess in the cheek or the frame of the door, in particular in the inner door, is arranged, is formed. The movably held element, which is mounted in the door lock housing on the washing container, is pushed back by the inner edge of the door, in particular the inner door, slides along the cheek or the frame of the door and is then pressed quickly into the recess.

Alternatively or additionally, according to another expedient development of the invention in the dishwasher, in which the recess of the washing is provided, that the projection or the increase by a region of the feed opening facing inside of the front edge region of the washing container, in particular its front edge element or Spülbehälterrahmenelementes, between the front outer edge of the washing container, in particular the Spülbehälterrahmenelementes, and the recess in the Rinsing, in particular in the possibly existing front Spülbehälterrand- or Spülbehälterrahmenelement, is arranged. Here the same principle described above applies. The movably held element is pushed back by the outer edge of the washing container, in particular of the edge element or Spülbehälterrahmenelementes, slides along the inside and is then pressed quickly into the recess.

According to a further particularly expedient development of the invention, it can be provided in the dishwasher that the depression is designed to receive the element or at least to receive a free end of the element. The recess can be designed differently. However, the depression or indentation is in particular designed such that it can receive at least the end of the movably held element, in particular a locking end of the closing piston, preferably in a form-fitting manner. By receiving at least the free end of the movably held element, in particular of the locking end of the closing piston, in the recess, the door can be fixed or held on the washing container or on the Spülbehälterrahmenelement.

According to a further particularly expedient development of the invention, it can be provided in the dishwasher that the element for applying the clamping force comprises a resilient material. Thus, the element may comprise an elastomeric spring, for example a resilient foam or a resilient rubber. By an actuating force exerted by an operator on the door, the resilient material of the element is compressed, so that due to the compression of a clamping force acting on the element.

Alternatively or in addition to an element, in particular a closing piston, which comprises a resilient material, can be provided according to a particularly advantageous development of the invention in the dishwasher be that the movably held element for applying the clamping force with a spring-elastic element, in particular a spring, is operatively connected. The resilient element may be, for example, a resilient foam or a resilient rubber. Preferably, the resilient element may be a spring, in particular a compression spring. The spring may be formed, for example, as a helical compression spring, a plate spring, or air spring.

According to a particularly advantageous embodiment of the invention may be provided in the dishwasher that the movably held element in a housing, in particular door lock housing movable, in particular linearly displaceable, is arranged. Preferably, the movably held element, in particular closing piston, held linearly or longitudinally displaceable in the housing along a linear guide. In this case, the element can be fixed, for example, to a spring-elastic element fixed in the housing. Thus, one end of the resilient element on the housing and the other end of the resilient element on the movably held element, in particular closing piston, be attached. It is not absolutely necessary that the movably held element is fixed to the resilient element. The resilient element is preferably arranged in the housing such that it can exert a clamping force on the movably held element. The movement of the movably held element in this case is limited by an additional limiting element, which is preferably arranged in the housing or is formed by the housing itself, so that the movably held element is linearly displaceable along a certain distance but can not fall out of the housing in the open position of the door. If the movably held element abuts against the limiting element, it is preferably in an equilibrium of forces, i. in a rest position.

According to a particularly advantageous embodiment of the invention may be provided in the dishwasher according to the invention, that the recess is integrally formed, in particular as an integral part, with the outer cheek, in particular the upper cheek section, or the frame of the door, in particular the frame whose inner door. This facilitates the production of the recess in the door, especially the inner door. Subsequent installation of a recess is not required. Particularly preferably, the depression or indentation in the door or the inner door, in particular in the outer cheek, in particular the frame of the door, preferably the inner door, embossed or stamped.

Alternatively, it may be advantageous if a separate molded part is provided which has the recess. The separate molded part is then expediently inserted into a corresponding recess in the outer cheek of the door, in particular its inner door or its frame, and fastened there. The molding can be made in an advantageous manner, regardless of the components of the door with the respective desired inner contour of its recess. As a result, different outer and / or inner contours can be given to it in a flexible manner. In particular, can be used for the molding plastic or a metallic material, which makes its production easier and cheaper.

According to a further expedient development of the invention, it can be provided in the dishwasher according to the invention that a free end of the movably mounted element protrudes into the feed opening of the washing container when the door is open due to the clamping force acting on the element. In the case of the positioning of the movably mounted element on the door, a free end of this element expediently projects beyond the frame of the door when the door is open owing to the clamping force acting on the element. In both arrangement variants is thereby the movably held element, in particular the movably held closing piston, by the outer cheek, in particular the inner edge of the door, in particular the inner door, or by the outer edge of the washing, in particular the Spülbehälterrahmenelementes, from its rest position, against the clamping force acting on it , in particular pushed back linearly, so that subsequently due to the increased clamping force at least the free end of the element, in particular locking of the closing piston, can engage in the recess. An advantage of such a positioning of the element or of the closing piston in its rest position is the simple arrangement of the depression in and / or on the outer cheek, in particular the frame of the door or inner door, or alternatively in and / or on the inside of the washing container or the Spülbehälterrahmenelementes.

According to a particularly expedient development of the invention, it can be provided in the dishwasher that the door is arranged pivotably or displaceably on the dishwasher. A pivotally arranged door is rotatably mounted in particular in the lower region of the door. A slidably mounted on the dishwasher door is similar to a drawer and extendable. When retracted, such a sliding door closes the loading opening of the dishwasher, in particular a domestic dishwasher.

The movably held element or the housing may be attached to the door or the inner door, or the washing container or the Spülbehälterrahmenelement in different ways. For this purpose, in particular non-positive and / or cohesive fasteners are possible. According to a further expedient development of the invention can be provided in the dishwasher according to the invention that the movably held element or the housing in which it is arranged, is fixed by latching or snap connections on the door, or in alternative positioning on the washing.

The signal generator and the signal receiver can be designed in various ways. For example, the signal transmitter can emit an optical signal that can process a suitably designed signal receiver. Alternatively, the signal generator can emit, for example, an electrical or electromagnetic signal that can process a suitably trained signal receiver. According to a particularly expedient development of the invention, it can be provided in the dishwasher according to the invention that the signal transmitter comprises a magnet and the signal receiver comprises a Hall sensor. The signal generator, ie in a preferred embodiment of the magnet, is preferably arranged in the movably held element, as well as the signal receiver, in particular the Hall sensor, in the recess. The arrangement of the signal transmitter in the movably held element, in particular, the magnet can be very easily formed.

As a result of the abrupt and directed feeding of the movably held element, this and thus the signal transmitter, in particular magnet, mounted on and / or in it always sits at the same distance from the correspondingly complementary element, ie. the signal receiver, in and / or at the recess. Alternatively, the positions of the signal generator and signal receiver and / or the positions of the movably held element and the depression can be reversed. In all arrangement variants, the closing end position of the door is improved by the control device of the dishwasher detected, since an element of the detection device is provided in and / or on the movable part, in particular closing piston, the door lock. Its movement is largely independent of the closing and / or opening movement of the door.

The rinsing container frame element or edge element, if present, advantageously limits the charging opening of the rinsing container. That is, the Spülbehälterrahmen- or edge element preferably forms the front, facing the door completion of the washing.
Other embodiments and further developments of the invention are given in the dependent claims.

The above-described and / or reproduced in the dependent claims advantageous embodiments and developments of the invention can be used individually or else in any combination with each other in the dishwasher according to the invention and the lock according to the invention for use. The invention and its training and development and their advantages are explained below with reference to drawings.

Figur 1

eine perspektivische Ansicht eines vorteilhaften Ausführungsbeispiels einer erfindungsgemäß ausgebildeten Geschirrspülmaschine mit einer an ihrem unteren Bereich schwenkbeweglich gelagerten Tür, für die eine Schließvorrichtung mit einer Ermittlungseinrichtung zum Ermitteln bzw. Feststellen ihrer Position, insbesondere Schließendposition, nach dem erfindungsgemäßen Konstruktionsprinzip vorgesehen ist,

Figur 2

einen Seitenquerschnitt eines vorteilhaften Ausführungsbeispiels einer an der Geschirrspülmaschine von Fig. 1 angeordneten Schließvorrichtung mit einer Einrichtung zum Ermitteln einer Position, insbesondere Schließendposition, der Tür,

Figur 3

einen Seitenquerschnitt der Schließvorrichtung von Figur 2 in einer Offenstellung der Tür,

Figur 4

einen Seitenquerschnitt des beweglich gehaltenen Elements, insbesondere Schließkolbens, der Schließvorrichtung gemäß dem Ausführungsbeispiel der Figuren 2 und 3 in einem Gehäuse angeordnet,

Figur 5

einen Seitenquerschnitt eines gegenüber Figur 4 abgerundeten, beweglich gehaltenen Elementes, insbesondere Schließkolbens, in einem Gehäuse,

Figur 6

eine perspektivische Ansicht auf die Beschickungsöffnung eines abgewandelten Spülbehälters und einer an dem Spülbehälter schwenkbeweglich gelagerten Tür mit einer Schließvorrichtung, die entsprechend dem erfindungsgemäßen Konstruktionsprinzip der Schließvorrichtungen der Figuren 2 mit 5 ausgebildet ist, und

Figur 7

ein Empfangspegel-/Zeitdiagramm des Signalempfängers der Ermittlungseinrichtung der Geschirrspülmaschine von Figur 1 beim Schließen deren Tür.

Each show schematically:

FIG. 1

a perspective view of an advantageous embodiment of a dishwasher according to the invention formed with a pivotally mounted at its lower part door, for which a closing device is provided with a detection device for determining or determining their position, in particular Schließendposition, according to the inventive design principle,

FIG. 2

a side cross section of an advantageous embodiment of an on the dishwasher of Fig. 1 arranged closing device with a device for determining a position, in particular Schließendposition, the door,

FIG. 3

a side cross-section of the closing device of FIG. 2 in an open position of the door,

FIG. 4

a side cross section of the movably held element, in particular closing piston, the locking device according to the embodiment of the Figures 2 and 3 arranged in a housing,

FIG. 5

a side cross-section of one opposite FIG. 4 rounded, movably held element, in particular closing piston, in a housing,

FIG. 6

a perspective view of the feed opening of a modified washing container and a pivotally mounted on the washing container door with a closing device according to the inventive design principle of the closing devices of Figures 2 is formed with 5, and

FIG. 7

a reception level / time diagram of the signal receiver of the detection device of the dishwasher of FIG. 1 when closing its door.

Elements with the same function and mode of action are in the FIGS. 1 with 7 each provided with the same reference numerals.

Fig. 1 schematically shows a perspective view of an advantageous embodiment of a household dishwasher 1, which is designed according to the inventive design principle. The domestic dishwasher 1 has a washing container 20 and a base assembly 10 arranged below it. It can be used in particular as a built-in device for installation in a niche such. As a kitchenette or a kitchen cabinet, be designed as a tabletop device, or stand-alone device. The rinsing container 20 consists of a vertically arranged Spülbehälterrückwandung 223, which extends in the width and height direction x, z, two arranged at the two side edges of the Spülbehälterrückwandung 223 perpendicular to this, forward in the height and depth direction z, y extending Spülbehälterseitenwandungen 221, 222 and a lying in the y, x-level Spülbehälterdeckenwandung 224 and a parallel to this bottom tray 25 together. In particular, the rinsing container 20 is assembled from a U-shaped rinsing container hood, a rear wall 223 arranged in a vertical positional plane x, z, and a floor pan 25 aligned in a horizontal positional plane x, y. The U-shaped Spülbehälterhaube is formed by a arranged in a horizontal plane x, y ceiling wall 224 and two side walls 221, 222. These are at the extending in the depth direction y longitudinal edges of the top wall 224, ie provided laterally on the ceiling wall, in particular integrally formed. They extend substantially perpendicular to the top wall 224 down. The washing container 20 is placed on the bottom assembly 10. That is, in the height direction or in the z-direction of the illustrated x, y, z coordinate system, the bottom assembly 10 is arranged below the washing container 20. The floor assembly 10 makes contact with a substrate, in particular a floor, a worktop or a Einbaunischen- bottom plate ago. The front-side charging opening 21 of the washing container 20 can be closed by the door 30. The door 30 is pivotally mounted on storage bolts, which are provided on holding means of the bottom group 10 and / or the lower, near the bottom of the washing container near the washing compartment 20. It comprises a front outside door 33 (see Figures 2 . 3 . 6 ) and one of the feed opening 21 facing the inner door 31, which has a folded edge or outside cheek.

The dishwasher 1, in particular household dishwasher, thus has a base assembly 10, also referred to as a base support, and a rinsing container 20 seated on the base assembly. The rinsing container may optionally additionally surrounded on the outside by an outer housing, in particular if the dishwasher is designed as a stand-alone unit or tabletop unit. In the case of a built-in dishwasher, such an outer casing is preferably omitted. The bottom assembly 10 is disposed below the washing container 20 and establishes contact with the respective place of installation underground. The washing compartment has on its front side a charging opening 21 for charging the one or more dish baskets 200 to be cleaned in the washing compartment of the washing compartment with items to be cleaned. The front-side charging opening 21 of the washing container 20 can be closed by a door 30. The door 30 is pivotably supported by support pins provided on retainers of the floor assembly 10 and / or the tub near the bottom of the wash tub 20. The feed opening 21 is thus opened for loading the one or more dish racks by a door 30 fixed to the dishwasher 1 and closed by the door 30 attached to the dishwasher 1 for operation of the dishwasher. In particular, in household dishwashers, the feed opening is usually arranged at the front, so that the door is usually in the lower part of the washing, in particular on the floor assembly of the domestic dishwasher, pivotally or alternatively extendable - similar to a drawer attached.

Fig. 2 shows schematically in a side cross-section of an advantageous embodiment of a dishwashing machine 1 according to Fig. 1 arranged detection means 2 for detecting the positional state of the door, wherein the door 30 is in a closing end position SE. The detection device 2 comprises a movably held, here in a linear guide 12 linearly displaceable element 3. This is formed by a closing piston or locking bolt of the door lock 3. That (in the FIG. 2 only dash-dotted line) door lock housing 5 of this door lock 3 is approximately fixedly mounted in the central region of the front, upper edge portion 22 of the rinse tank 20 at this. It is positioned there with respect to an opening 220 in the upper edge portion 22 of the washing container 20 so that its movably held element 3 can be moved through an opening 220 in the vertical direction z. In its blocking position SK it protrudes with its free Arretierende from the opening opening 220 inwardly into the feed opening 21 of the washing compartment 20 inside. In a release position SK, it is withdrawn with its free end from the interior of the washing container outwardly behind the opening opening 220 so far that the pivoting path for the door 30 is made free for their immersion in the feed opening 21. The locking position SK and a release position FK of the free, outer end of the movably held element 4 are in the FIG. 2 each marked by a dashed line. Between the two positions FK, SK is the stroke HW of the movable element 4, which is at least required by this in the vertical upward direction UP to make the loading opening 21 freely accessible. In the FIG. 2 is the movable held element additionally marked in dashed lines in a release position and marked with 4 *. The movably held element 4 is acted upon by a resilient element 13, here in the form of a spring, with a clamping force F _S , which presses the movably held element 4 in the associated recess 32 in the upper cheek portion or frame portion 311 of the inner door 31 of Dishwasher 1 position corresponding, in particular centrally, is provided. The recess 32 is formed here as a recess or indentation in the upper portion of the frame or the outer cheek of the inner door 31. In particular, the recess 32 is embossed in the frame of the inner door 31 of the door 30. Possibly. can also be a separate molding with a corresponding recess in a recess in the upper portion of the inner door 31 may be used. The movably held element 4 or the free end 4 of the movably held element 4 engages, advantageously largely contour-locked, in particular form-fitting, in the recess 32 a. The linear guide 12 for the door lock housing 5 movably held element 4 is formed such that the element 4 is movable only in the vertical direction z.

The rinsing container 20 thus has a front rinsing container edge region 22. This frontally U-shaped viewed from the front and extends along the front end sides of the two side walls 221, 222 and the top wall 224. At the front edge of the washing can possibly an additional edge element or Spülbehälterrahmenelement 26 (see FIG. 6 ) may be provided only locally at selected locations, only in sections, or throughout along its entire length. It may in particular serve to ensure a sufficient mechanical stability of the washing container 20 and / or to provide a sealing bed for a door 30. If necessary, this front edge zone 22 of the washing container can be designed to fasten the dishwasher 1 in an installation niche, in particular in a niche of a kitchen unit. The front Spülbehälterrandbereich 22 may be preferably designed to be stiff. At the upper portion 23 of the Spülbehälterrandbereichs 22, ie at the front, extending substantially in the depth and width direction y, x edge portion 23 (see FIG. 4 ) of the top wall 224 of the washing container 20, here in the FIG. 1 shown only schematically, a door lock 3 with an associated limiting device 6 is provided. FIG. 6 shows a perspective view of the door lock 3 on the upper outer side of the front Spülbehälterrandbereichs, which is formed by a rim member or Spülbehälterrahmenelement 26. This upper edge section 23 is arranged approximately parallel to the top wall 224 in the x, y position plane. The door lock 3 is approximately centrally on the upper-side portion 23 of the Spülbehälterrandbereichs 22, in particular the possibly existing front edge element of the washing or Spülbehälterrahmenelements 26, mounted on the outside. It sits with its closing piston preferably at the upper, horizontally or horizontally extending Spülbehälterrandbereich 23 that its closing piston can penetrate through the aperture 220 and pass through. Its closing piston protrudes from the housing 5 of the door lock 3 through the opening 220 (see FIG. 2 ) in the upper portion 23 of the front Spülbehälterrandbereichs 22 substantially vertically downwards as a resiliently mounted snap element, which is associated with a recess or closing recess 32 at the top or top edge of the cheek of the door 30, in particular the door frame, in particular door frame element, opposite please refer FIG. 2 ). This upper edge portion 23 is the front edge zone of the top wall 224 of the washing container 20, which lies in a position plane extending in the depth direction y and width direction x. The recess 32 has an inner contour, which is substantially is formed complementary to the outer contour of the lower end of the closing piston. The closing trough can be formed in the upper edge of the door cheek or the door frame, in particular door frame element, by an impression with. Alternatively, it may optionally be formed by a molded part, which is used as an independent component in a corresponding recess on the top of the door cheek, in particular the inner door, or the door frame, in particular door frame element. The respective recess of this separate molding can be produced in a simple manufacturing manner with desired inner contours. Preferably, plastic or metal is selected for this molded part with a closing recess, so that it is possible to produce different shapes of closure molds in a simple, efficient and cost-effective manner. In the closing end position of the door 30, the closing piston and the closing recess are largely aligned with each other. The front-side charging opening 21 of the washing container 20 can be closed by the door 30 by means of the door lock 3. In the final closing position SE of the door 30, its inner door 31 is partially or completely immersed in the front-side rinsing container rim 22 of the rinsing container so that the inner door 31 and the rinsing container 20 coincide, ie overlap, at least in a front edge zone or overlapping zone UZ.

In the movably held element 4 of FIG. 2 is a signal generator 2 a, in particular a magnet arranged. The movable element 4 is in this embodiment of the dishwasher 1 at the upper portion 23 (see FIG. 6 ) of the front edge portion 22 of the washing container. If the washing container 20 has a front-side Spülbehälterrandelement or Spülbehälterrahmenelement 26 (see FIG. 6 ), it may suitably be attached to this accordingly. In the bottom region of the recess 32, a signal receiver 2b, in particular a Hall sensor, is arranged fixed.

Fig. 3 shows schematically in a side cross-section of the door lock 3 of FIG. 2 with the movable member 4 carrying the signal generator 2a of the detection means 2, and the corresponding recess 32 in the upper edge and the upper cheek of the door 30 in a state after the door 30 has been brought to an open position OS.

In the open position OS, the movably held element 4 is in a rest position, ie in an equilibrium of forces. In this rest position, the free end of the movably held element 4 preferably protrudes into the charging opening 21 of the washing container 20 of the dishwasher 1 in such a way that when the door 30 is closed, the movably held element 4 is pushed back by the inner edge 34 of the inner door 31 and along the Upper cheek portion or frame portion 311 of the inner door 31 slides along until it due to the clamping force exerted by the resilient element 13 on the movably held element 4 in the vertical direction z downward, in the recess 32 in the upper side cheek portion or frame portion 311 of the inner door 31st is pushed in the final wear position SE of the door 30, whereby the movably held element 4 its blocking position SK (see Fig. 2 ) in the specific, in particular position corresponding to the door 30 associated recess 32 occupies. During the closing process, the resilient element 13 is first compressed, whereby the clamping force F _{S of} the resilient element 13 is increased. The clamping force of the resilient element 13 is directed in the direction of the free end 4 of the movably held element 4. The contour of the free end 4 of the movably held element 4 is formed such that upon closing the door 30, the front side 42 of the free end 4 of the element 4 striking the inner edge 34 of the inner door 31 is made flatter than the other side, ie rear side or the rear side 41 of the free end of the element 4. That is, when first closing the door 30 on the inner edge 34 of the inner door 32 hitting front 42 of the free end of the element 4, in particular a tangent to the contour of this front side 42 of the free end of the element 4, has a greater angle to the vertical longitudinal axis z of the linear guide 12, as the subsequent second side or rear side or rear side 41 of the free end of the element 4. By this special design of the free end of the movably held element 4, the door 30 can be closed more easily than opened. When closing the free end of the element 4 slides with its flat chamfer or ramp 42 slightly along the inner edge 34 of the inner door 32 along. The occurring friction force can be overcome relatively easily. The steeper, second chamfer or ramp 41 of the movably held element 4, on the one hand, ensures that the movably held element 4 quickly dips into the recess 32 when the movably held element 4 reaches the recess 32 and, second, that this securely held in the recess 32. The steeper, second bevel 41 of free end of the movable element 4, which is directed in the Schließendposition to the inner edge 34 of the inner door 31, see Fig. 2 , is located (when looking into the washing inside) at the rear wall chamfer 321 of the recess 32 at. When opening the door 30, due to the steepness of the steep, second chamfer 41 of the free end of the element 4 and the wall of the recess 32, it is necessary to apply a greater force to the frictional force between the second steep chamfer 41 of the free end the element 4 and the lower, steep wall 321 of the recess 32 and clamping force F _{S of} the resilient element 13 to overcome.

In the in the Fig. 2 and 3 illustrated variant of the dishwasher 1, the signal generator 2a, in particular in the form of a magnet, arranged in the movably held element 4, in particular embedded in the material of the free end of the element 4. The signal receiver 2b, in particular a Hall sensor, is arranged near the bottom area or base 320 of the recess 32 in the inner door 31 of the door 30. Characterized in that the movably held element 4 and thus the signal generator 2a when closing the door 30 through the inner edge 34 and the region of the upper side cheek portion or frame portion 311 of the inner door 31 which is disposed between the inner edge 34 of the inner door 31 and the recess 32 and forms an elevation with respect to the depression or trough 32, is initially forced back vertically in the direction of the linear guide 12, the signal generator 2a is intentionally removed vertically upward from the signal receiver 2b during the last part of the closing operation of the door. In this case, the clamping force F _{S of} the resilient element 13 is increased with respect to its unloaded state when the door is open. Only at the last moment of the closing movement of the door, as soon as the movably held element 4 has reached the recess 32, this is abruptly pressed by the biasing force or rapid force of the resilient element 13 into the recess 32. This results in a rapid immersion of the movably held element 4 in the recess 32. It is held there under spring tension or spring pressure vertically down in the recess 32 with a defined holding force. Due to the moving away of the signal generator 2a from the signal receiver 2b in or below the base 320, in particular the deepest point of the recess 32 to produce a bias for the movably held element 4 by a Nachobenhubvorgang before reaching the closing end position of the door is no continuous approach of the signal generator 2a to the signal receiver 2b, but an abrupt, rapid approach only at the last moment of the door closing movement, ie only in the final closed position of the door. This leads to a rapid magnetic field increase at the signal receiver 2b. If a Hall sensor is used, the magnetic field increase is accompanied by an abrupt increase in its reception level or output level, in particular its output voltage. This can be evaluated by the control device SV of the dishwasher 1. The control device SV is connected via at least one control and / or data line SL to the signal receiver 2b of the detection device. In the FIG. 2 the control device SV and the signal line SL are shown in phantom. Such a trained dishwasher 1 allows a very accurate indication of the closing end position of the door 30 on the washing container 20 of the dishwasher 1. In particular, by moving the movably held element 4 from the recess 32 in a closing preparation step before reaching the closing end position of the door and the subsequent fast Immersion of the movably held element 4 in the recess 32 in the subsequent reaching the Schließendposition the door whose Schließendposition can be defined very accurately, so that the detection means 2 for detecting the position of the door 30 indicates the Schließendposition the door 30 only when they actually is reached. By immersing at least the free end of the movably held element 4 and thus the signal generator 2a in the recess 32, the signal generator 2a can be arranged directly in front of the signal receiver 2b arranged in the vicinity of the bottom region 320 of the recess 32. If, for some reason, the free end of the movably held element 4 does not snap into the recess 32 during the end of the door closing operation, for example due to slight twisting or skewing of the door 30 with respect to the loading opening 21 of the washing container 20, then no closing end position of the door 30 will be detected , And thus the dishwasher 1 not put into operation by the control device SV, in particular a selected Geschirrspülprogramm not started. The control device SV can z. B. be housed in the interior of the door 30. In particular, the control device SV is embodied such that a selected dishwasher program is not started until the closing end position SE of the door 30 has been detected or detected by the control device SV. Conveniently, the door lock 3 with the movably held element 4, in particular closing piston so at the upper edge portion 23 of the front Spülbehälterrandbereichs 22, in particular in the middle region, attached that the closing piston in its release position, a substantially vertical upward and / or downward movement is possible , If z. B. the door 30 is closed, presses its inner door 31 or door frame from a certain Zumachstellung or stop position during Zumachbewegung the pivoting door from below on the closing piston and pushes it into the housing 5 of the door lock 3 inside. In this case, the resilient element 13, in particular a coil spring, compressed and biased in the housing of the door lock 3. As soon as the door comes close to its closing end position during its closing motion and the closing piston 4, the recess 32 in the door, in particular the inner door or door frame 31, preferably largely congruent at the upper edge portion of the inner door or door frame, the closing piston is due to the Preload force or spring force F _{S of} the resilient element 13 in the housing 5 of the door lock 3, down, in particular vertically downwards, in which preferably to the outer contour of the closing piston correspondingly adapted inner contour of the recess, in particular closing recess pressed so that he there on the inner contour the closing recess fits snugly and is held there with a defined holding force or closing force. The closing piston sits in particular largely passport or positive fit in the closing recess. It is thus formed a tearing or snap lock, in which the door can be raised only in overcoming this vertically acting closing force F _S by applying a correspondingly large tensile force F _Z on the door from its Schließendstellung out in an open position. As a result, reliable protection, in particular a child safety device, is provided against unintentional opening of the door.

In particular, it is expedient if the closing recess 32 in the closing end position of the door 30 viewed from the front has a rear slope or flank 321 which is steeper than its front slope or flank 322. Accordingly, the movably held element 4, in particular the closing piston, expediently at its lower end to a rear slope or flank 41, which corresponds substantially to the steepness of the rear slope or flank 321, in particular steep wall of the closing recess 32, and a front slope or flank 42, which is essentially the Slope of the front slope or flat flank 322, in particular flat wall of the closing recess 32 corresponds. The closing piston is thus formed on the front side with a flatter fold or slope than on its rear side. This is in each case in the side view of FIG. 2 and the FIG. 3 shown schematically. As a result, slide the front bevels of the closing piston and the closing recess when closing the door smoothly using a small horizontal sliding force component to each other, while the opposite when opening or pulling the door from the Schließendstellung out a larger minimum tensile force F _Z (in y-direction forward) is required. Because for a sliding against each other of the rear, abutting flanks of closing piston and closing recess and thus pushing back the closing piston in a release position in the door lock housing in such a larger tensile force in the horizontal direction is required that against the vertically downward spring biasing force F _{S of} the spring element 13 of the Door lock is a vertically upward, force component (by the forward, away from the feed opening door) is effected, which is greater than this spring biasing force of the spring element. The greater the steepness of the abutting rear flanks of closing piston and closing recess, the greater is their holding force against each other in a forward, horizontal elevator movement of the door and the greater is the applied tensile force or tearing force F _Z , which is applied to open the door ,

In the FIGS. 4 and 5 are each schematically in the side cross-section different advantageous embodiments of a movably held in the door lock housing 5 element 4 for the closing device of the dishwasher 1 of the invention Fig. 1 shown. The element 4 is held in the linear guide 12 linearly or longitudinally, in particular in the vertical direction z, slidably. The resilient element 13 exerts a clamping force F _S on the element 4 down. The clamping force is thus directed in the closing end position of the door 30 in the direction of the recess 32. The mobility / displaceability of the element 4 may be limited by an unillustrated limiting element. Alternatively, the element 4 may be attached to one end of the resilient element 13. The resilient element 13 is then advantageously secured with its other end to the housing 5. The linear guide 12 is preferably held on the inside of the housing 5. The end of the element 4 has a signal transmitter 2a embedded in the element 4. In the Fig. 4 is the free, downwardly projecting end of the element 4 formed with angular outer edge. In the Fig. 5 is the end of the element 4 with rounded outer contour, in particular semicircular. The depression, into which at least the free end 4 of the movably held element 4 is immersed, is advantageously designed such that the free end of the element 4 can largely conform to the contour, in particular with a positive fit, into it. A front, front portion of the free end 4 of the movably held element 4 is preferably formed flatter, as the door 30 rounded area, so that the closing of the door can be done easily, ie with a compressive force, which is less than the applied Tensile force F _Z (see FIG. 2 ) for opening the door directed substantially tangentially to the overlapping zone UP formed between the upper portion 23 of the front washing compartment edge portion 22 and the upper cheek portion 311 of the inner door 31 in the closing end position SE of the door.

Fig. 6 schematically shows a perspective view of the front-side feed opening 21 of the washing container 20 and the door 30 of the dishwasher of FIG. 3, which is pivotably mounted on the washing container 20 and / or on its base assembly 10 Fig. 1 , The washing container 20 now has a modification of the embodiment of the FIGS. 1 5 with an additional front edge element or Spülbehälterrahmenelement 26, which supplements the side walls 221, 222 and the top wall 224 of the washing in the front different levels. The door lock housing 5, which surrounds the movably held element 4 is arranged on the edge element or Spülbehälterrahmenelement 26 of the washing container 20, in particular fastened. In this case, the housing 5 is arranged in particular such that the element 4 protrudes in its rest position with its downwardly freely projecting end into the charging opening 21 of the washing container 20. The depression 32 is provided in the middle region of the upper-side cheek section or edge section 331 or frame of the inner door 31 of the door 30. The recess 32 is arranged in such a way in the upper side cheek section or edge portion 331 or frame of the inner door 31, that in a Schließendposition SE of the door 30 at least the downwardly freely projecting end of the element 4 due to acting on him clamping force F _S in the Recess 32, in particular can engage positively. The recess 32 is preferably formed integrally with the upper-side cheek section or edge section 331 or frame of the door 30. there For example, during the manufacturing process, the recess 32 can be produced monolithically with the frame of the door 30 or can be subsequently stamped or punched into the frame of the door 30.

As an alternative to the pivotable mounting of the door 30 on the dishwasher 1, the door 30 can also be arranged to be movable in the manner of a drawer on the dishwasher 1, in particular in the depth direction of the washing compartment.

FIG. 7 schematically illustrates the timing of the reception level or output level P of the signal receiver 2b as a function of the time t when closing the door. Since the signal generator 2 a and the signal receiver 2 b are arranged relative to each other movably on the movably held element 4 of the washing container 20 and the door 30 that the signal generator 2 a and the signal receiver 2 b are initially moved away from each other when closing the door 30 before reaching its closing end position SE and the level P only increases abruptly and steeply at the time tSE associated with reaching the closing end position SE, whereas in the preceding period there is no detectable level value from the signal receiver 2b to the control device SV is output. Thus, error detections of the closing end position of the door by the control device SV are largely avoided.

In summary, therefore, a dishwasher, in particular domestic dishwasher, provided with a closing device for the door, the front of the washing, in particular on the front Spülbehälterrahmenelement, a closing piston in a holding device such that the closing piston under a spring bias a linear or longitudinal stroke in the direction in a recess associated with it in and / or on the door, in particular door frame, is pressed. When the holding device with the locking pin in the area, in particular center region of the upper edge portion of the cover wall of the washing container is fixedly mounted and the recess to position corresponding in the edge of the upper side door panel section or door frame, in particular in the center region, is provided, the closing piston of the locking device in the Closing end position of the door due to the becoming effective Spring projection of a spring element of the holding device in the form of a vertical lifting movement down into the recess, in particular closing recess, pressed and secured in position there. For this purpose, the recess has an inner contour, which is formed substantially complementary to the outer contour of the closing piston. When mounting the door, however, the closing piston is pushed back when pulling out of the recess and loops on the door frame vertically upwards under spring projection, so that the loading opening of the washing is released to move out the door. As soon as the door is opened so far that the upper-side door cheek section or door frame section is outside the washing container, in particular Spülbehälterrahmenelement, the locking clamps out of its holding device down and remains in a gegenkraftunbelasteten herausdrückstellung.

In particular, when the inner contour of the depression to the outer contour of the free end of the closing piston is formed to be largely complementary, closing piston and the recess center themselves in the Schließendposition the door to each other so that the signal transmitter in the closing piston and the signal receiver in the recess along a line of flight VL (FIG. please refer FIG. 2 ) face each other when the closing end position of the door is reached.

When closing the door of the locking piston of the holding device, which (viewed in the direction of depth y) inwardly offset to a front edge zone, in particular Deckenwandungsrandzone of the washing compartment, attached thereto, abuts the inner edge zone or cheek of the door facing it and thereby by pushing away a spring projection of its resilient element by a linear or longitudinal lifting movement of the door, in particular vertically upwards. If the door during Zumachvorgang or closing process in the area of the depression (viewed in the depth direction) provided to the washing container facing inner edge of the inner door of the door is provided, then the locking block jumps due to the spring bias of its resilient element from the holding device in the recess a linear or longitudinal lifting movement, in particular vertical lifting movement down, so that there is a locking or locking between the locking pin and recess. This linear lifting movement of the signal generator and signal receiver relative to each other in the field of The final closing position of the door ensures that the final position of the door can always be clearly recognized by the signal receiver. It is largely avoided by this linear lifting movement of the locking bolt with the signal generator, that the signal transmitter in the closing end position of the door as far laterally offset to the signal receiver in the depression comes to rest, that the signal receiver can no longer detect the signal generator sufficiently or not at all. Rather, the linear lifting movement of the locking bolt with the signal generator ensures that it is always aligned in the closing end position of the door largely aligned on the signal receiver in the trough, ie there is always a defined end position of the signal generator to the signal receiver in the final closing position of the door. In this way, an unambiguous detection of the closing end position of the door is always possible, even if the door, for example due to manufacturing tolerances or wear in the width direction and / or height direction of the washing makes Versetzbewegungen.

Alternatively, the position of the closure device and associated recess may be reversed, i. H. the locking device is then attached to the door while the recess is provided on the washing compartment.

Optionally, if necessary, the position or position of the signal generator and signal receiver can be reversed. However, the attachment of the signal receiver in the fixed depression is more advantageous, since then the signal line guide to the control device of the dishwasher stationary, ie immobile can be formed.

LIST OF REFERENCE NUMBERS

1

dishwasher

2

Determining device for detecting the position, in particular final wear position of a door

2a

signaler

2 B

signal receiver

3

Locks

4, 4 *

moveable element

41

steep contact surface

42

flat contact surface

5

Door lock housing

7

Housing of the closing piston

10

bottom assembly

12

linear leadership

13

elastic element

20

rinse tank

21

front loading opening

200

baskets

220

Through opening in the front Spülbehälterrandbereich

221, 222

Spülbehälterseitenwandungen

223

washing compartment

224

Spülbehälterdeckenwandung

22

front edge region of the washing container

23

Upper edge zone section of the washing container

25

floor pan

26

Front Spülbehälterrahmen- or Spülbehälterrandelement

30

door

31

interior door

311

upper cheek of the inner door

32

deepening

320

Reason of depression

321

Steep wall of the depression

322

Flat wall of the depression

34

Inner edge of the inner door or projection / heightening on the cheek of the door

F _S

tension

F _Z

traction

SE

Closing end position of the door

OS

Open the door

FK

Release position of the movable element

SK

Locking position of the movably held element

VL

alignment

HW

stroke

UP

Upward movement of the movably held element

UZ

overlap zone

P

Level of the signal receiver

t

Time

tSE

Time of reaching the closing end position of the door

Claims (12)

1. Dishwasher (1), in particular domestic dishwasher, having a washing compartment (20), of which the loading opening (21) can be closed by a door (30), and having a determination device (2) for determining the position of the door, wherein the determination device (2) comprises a signal transmitter (2a) and a signal receiver (2b), wherein a movably mounted element (4) is provided in or on the washing compartment (20), in and/or on which the signal transmitter (2a) or the signal receiver (2b) of the determination device (2) for determining the position of the door (30), in particular the closed end position (SE) of said door, is arranged,
   characterised in that

   - a cavity (32), in particular a closing trough, in and/or on the door (30), in particular positionally corresponding in the closed end position of the door (30), is assigned to the movably mounted element (4),

   - the cavity (32), in particular closing trough, has on its front wall edge (321), which is nearer to the front of the door (30), a shallower slope than on its rear wall edge (322), which is further from the front of the door (30), and

   - the free end of the movably mounted element (4) has on its contact surface (41) facing toward the interior of the washing compartment (20) a steeper slope than on its contact surface (42) facing away from the interior of the washing compartment (20).
2. Dishwasher according to claim 1, characterised in that a closing piston or closing block of a door lock (3) is provided as the movably mounted element (4).
3. Dishwasher according to at least one of the preceding claims, characterised in that the movably mounted element (4) is designed so as to be subjectable to a tensioning force (F_s), by which said element can be pushed from a released position (FK) to a closed position (SK).
4. Dishwasher according to at least one of the preceding claims, characterised in that the movably mounted element (4) is mounted, in particular suspended or supported, so as to be displaceable in a linear manner.
5. Dishwasher according to claim 4, characterised in that the movably mounted element (4) is mounted so as to enable said element to make a linear opening and closing stroke movement substantially orthogonally to an overlap zone (UZ) which is formed between the washing compartment (20) and the door (30) in the region of the closed end position (SE) of said door.
6. Dishwasher according to at least one of the preceding claims, characterised in that the signal transmitter (2a) and the signal receiver (2b) of the determination device (2) are assigned to the washing compartment (20) and the door (30) such that, in the closed end position (SE) of the door (30), said transmitter and receiver lie, in particular along an imaginary connecting line (VL) largely flush, against one another.
7. Dishwasher according to one of the preceding claims, characterised in that the internal contour of the cavity (32), in particular closing trough, is embodied so as to be substantially complementary to the external contour of the freely projecting end of the movably mounted element (4) assigned to the cavity (32).
8. Dishwasher according to one of the preceding claims, characterised in that the signal transmitter (2a) is provided in or on the movably mounted element (4) and the signal receiver (2b) is provided in or on the base region of the cavity (32).
9. Dishwasher according to one of the preceding claims, characterised in that the signal transmitter (2a) is provided in or on the base region of the cavity (32) and the signal receiver (2b) is provided in or on the movably mounted element (4).
10. Dishwasher according to at least one of the preceding claims, characterised in that contact surfaces (41, 321; 42, 322) of the movably mounted element (4) and of the cavity (32) are embodied and assigned to one another such that, when the door (30) is moved from its closed end position (SE) to an open position (OS), the movably mounted element (4) and the cavity (32) slide against one another with contact surfaces (41, 321) which are steeper than those contact surfaces (42, 322) of the movably mounted element (4) and of the cavity (32) which slide against one another when the door (30) is moved inward from an open position to its closed end position (SE).
11. Dishwasher according to at least one of the preceding claims, characterised in that the signal transmitter (2a) and the signal receiver (2b) are arranged movably relative to one another on the movably mounted element (4) and the door (30) such that the signal transmitter (2a) and the signal receiver (2b) are initially movable away from one another, before the door reaches its closed end position (SE) during the closing of said door (30), and are movable toward one another only in the region of the closed end position (SE) of the door (30).
12. Dishwasher according to at least one of the preceding claims, characterised in that the movably mounted element (4) is provided with the signal transmitter (2a), in particular a magnet, approximately in the central region of the upper front edge region (22) of the washing compartment (20), and in that the cavity (32), in particular a closing trough, having the signal receiver (2b), in particular a Hall sensor, substantially positionally corresponding in the region of the upper edge of the door (30), in particular the inner door frame of said door, is assigned to the movably mounted element (4).

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