Dishwasher in the form of a rack-type pass-through dishwasher or hood-type dishwasher with a positioning and / or alignment system

Abstract

The invention relates to a dishwasher (1) in the form of a pass-through dishwasher or hood-type dishwasher, which has a treatment chamber (2) that can be closed with a hood (3) that is at least substantially vertically movable, in which at least one dish rack / cutlery basket / adapter basket (6) in particular with correspondingly placed items for washing can be received. According to the invention, a positioning and / or alignment system is provided in particular, which is designed to move a dish rack / cutlery basket / adapter basket (6) received in the treatment chamber (2) into a predetermined or definable position and / or orientation when the hood (3) is moved into a state in which the treatment chamber (2) is closed or is closed by means of the hood (3).

Description

This invention relates generally to the art of commercial rinsing. In particular, the invention relates to dishwashers, in particular industrial dishwashers which are designed as a program machine.Automatic programming machines are manually loadable and unloadable dishwashers. The automated dishwashers (also referred to as "box-type goods dishwashers" or "batch dishwashers") can be dishwasher screens, also referred to as hood dishwashers ("food-type goods dishwashers") or front loaders ("front loader goods dishwashers"). Front end loaders may be under-table ("undercounter machines"), top end loaders ("top counter machines"), or free standing front end loaders ("free standing front loaders").A dishwasher designed as a program machine usually has a treatment chamber for cleaning washware. As a rule, a wash tank is arranged under the treatment chamber, in which wash tank liquid can flow back from the treatment chamber by gravity. The wash tank contains wash liquid, which is usually water, to which cleaner can optionally be supplied.Furthermore, a dishwasher designed as a program machine usually has a washing system with a wash pump, a line system connected to the wash pump and with a plurality of spray nozzles designed in at least one wash arm. The washing liquid located in the washing tank can be conveyed by the washing pump via the line system to the washing nozzles and sprayed through the washing nozzles in the treatment chamber onto the washware to be cleaned. The sprayed washing liquid then flows back into the washing tank.Such a dishwasher designed as a program machine is known, for example, from the publication DE 10 2005 023 429 A1.The term "washware" as used herein is to be understood in particular as meaning dishes, glasses, cutlery, cooking utensiles, baking utensiles and serving trays.A commercial dishwasher designed as a program machine differs from a household dishwasher in particular in that a commercial dishwasher has to be designed in such a way that, depending on the selected cleaning program, program run times of between one and five minutes can be realized, while household dishwashers generally have run times of up to 2.5 hours or more. Because of the short program duration required in commercial dishwashers, techniques used in household dishwashers are generally not readily transferable to commercial dishwashers.Commercial dishwashers which are designed as program dishwashers usually operate in two main process steps: a first step which involves washing with a washing liquid and a second step which involves final rinsing with heated fresh water and metered final rinse.In order to be able to carry out these process steps, a commercial dishwasher designed as a program machine is generally equipped with two independent liquid systems which are completely separated from one another. The one liquid system is a wash water circuit which is responsible for washing the washware, the washing being carried out with recirculated water from the wash tank of the dishwasher. The other liquid system is a fresh water system which is responsible for the clear rinsing. The final rinsing is carried out with fresh water, preferably with fresh water from a water heater ("boiler"). After spraying, the fresh water is likewise taken up by the wash tank of the dishwasher.The main task of the final rinse is to remove alkali present on the washware. In addition, the final rinse water flowing into the wash tank during the final rinse step serves to regenerate the wash water present in the wash tank.Before fresh water is sprayed as final rinse liquid by the final rinse and is thereby conducted into the wash tank of the dishwasher, an amount of wash liquid equal to the amount of fresh water is pumped out of the wash tank.Commercial dishwashers which are designed as program dishwashers are usually equipped with a plurality of programs. These programs differ mainly by different program run times of the washing process. The operator has the possibility of selecting a short washing program in the case of lightly soiled washware or of selecting a correspondingly longer washing program in the case of heavily soiled washware.Commercial dishwashers which are designed as a program machine and for batch loading and unloading of the treatment chamber with washware are in particular front door machines or basket push-through machines. In front door machines, the washware is placed in a basket and the basket loaded with washware is placed through a front door into the treatment chamber of the dishwasher and, after cleaning, is removed again through the front door. In basket push-through machines, the crockery baskets loaded with washware are pushed manually into the treatment chamber from an input side and, after termination of a washing program, are removed manually from the treatment chamber from an output side. Front door machines and basket push-through machines contain only a single treatment chamber for treating the washware. The front door machines may be under table machines or over table machines.In the case of commercial dishwashers which are designed as automatic programming machines, it is desirable, in order to achieve the most optimum possible cleaning result, for the dishwasher basket or cutlery basket to be present in the treatment chamber of the dishwasher in a position and / or orientation which is fixed or can be fixed in advance.This is necessary, for example, when the basket is a bottle basket which is to be aligned as exactly as possible in the treatment chamber, so that the individual nozzles of the bottle washing system are positioned as exactly as possible below the bottle openings.However, it is also desirable in other dishwashers to position and align them precisely in the treatment chamber of the dishwasher so that the washware which is correspondingly picked up by the dishwasher can be acted upon with cleaning liquid as optimally as possible by means of the washing and final rinse nozzles.A further application which likewise requires positioning and alignment of the washing or cutlery basket in a predetermined or fixable position may be called the "elimination polishing" technology, as is disclosed in the publication DE 10 2019,114 116 A1. In this case, a cutlery holding device, consisting of an adapter basket with output shaft and removable, rotatably mounted cutlery basket, must be placed in the treatment chamber of the dishwasher in such a way that the output shaft on the adapter basket is coupled to the drive shaft on the rear wall of the treatment chamber on the machine side and a force transmission is thus possible.In contrast to bottom table dishwashers, there are problems in particular in the lateral positioning of the dishwasher basket or cutlery basket in the treatment chamber in hood dishwashers.In particular, in hood dishwashers with the hood open, there are no lateral stops or positioning aids, since the loading and unloading of the washing or cutlery baskets usually takes place laterally from right to left or from left to right and lateral stops would thus represent an obstacle for the pushing in or pushing out of the washing or cutlery basket. In contrast, in the case of lower table dishwashers, the loading of the dishwasher or cutlery basket takes place at the front via the open door of the lower table dishwasher, wherein the two side walls of the dishwasher automatically serve as lateral stops or positioning aids for the correct alignment of the dishwasher or cutlery basket within the treatment chamber of the dishwasher. In contrast, in hood dishwashers the washing or cutlery basket is only pushed laterally into the treatment chamber of the dishwasher approximately (according to eye dimension) by the operator.On the basis of this problem, the object of the invention is to specify a dishwasher, in particular a dishwasher in the form of a through dishwasher or hood dishwasher, with which automatic positioning and alignment of a washing or cutlery basket within the treatment chamber is possible.This object is achieved in particular by the subject matter of the independent claim 1, wherein advantageous refinements of the dishwasher according to the invention are specified in the dependent claims.Accordingly, the invention relates in particular to a dishwasher in the form of a through dishwasher or hood dishwasher, which has a treatment chamber which can be closed by a hood which can be moved at least substantially vertically and in which at least one dishwasher or cutlery basket can be accommodated, in particular with correspondingly accommodated washware.According to the invention, in particular a positioning and / or alignment system is provided which is designed, when the hood is moved into a state in which the treatment chamber is closed with the aid of the hood, to transfer a washing or cutlery basket accommodated in the treatment chamber into a predetermined or fixable position and / or alignment.According to preferred implementations of the dishwasher according to the invention, it is provided that the positioning and / or alignment system is designed, when the hood is moved into the state in which the treatment chamber is closed with the aid of the hood, to transfer the washing or cutlery basket accommodated in the treatment chamber sequentially and in particular after a predetermined or fixable sequence of events into the predetermined or fixable position and / or alignment.In embodiments of the dishwasher according to the invention, the positioning and / or alignment system is configured, when moving the hood into the state in which the treatment chamber is closed with the aid of the hood, to first move the washing or cutlery basket accommodated in the treatment chamber in a first direction running at least substantially perpendicular to the direction of movement of the hood and to position and / or align it with respect to the treatment chamber, and then, when the hood moves further into the state in which the treatment chamber is closed with the aid of the hood, to move the washing or cutlery basket accommodated in the treatment chamber in a second direction perpendicular to the first direction and to the direction of movement of the hood and thus to position and / or align it with respect to the treatment chamber, the washing or cutlery basket is then present in the predetermined or fixable position.In this context, it is preferred that the dishwasher has a rear wall which delimits the treatment chamber at least partially or in regions, wherein the first direction runs at least substantially parallel to a direction of longitudinal extent of the rear wall and the second direction runs at least substantially perpendicular to the direction of longitudinal extent of the rear wall, wherein, when the washing basket or cutlery basket is moved in the second direction, said basket is preferably moved towards the rear wall of the dishwasher.According to preferred developments of the dishwasher according to the invention, the positioning and / or alignment system is designed to move the washing or cutlery basket in a direction opposite to the second direction when the hood is transferred from the state in which the treatment chamber is closed with the aid of the hood into a state in which the treatment chamber is no longer closed with the aid of the hood, that is to say when the hood is opened.In this case, it is particularly expedient that the positioning and / or alignment system is configured, when the hood is opened, that is to say when the hood is transferred from the state in which the treatment chamber is closed with the aid of the hood into a state in which the treatment chamber is no longer closed with the aid of the hood, to move and / or expel the washing or cutlery basket accommodated in the treatment chamber from the previously fixed or fixable position into a removal position.Preferably, the positioning and / or alignment system should be designed, in the state in which the treatment chamber is closed with the aid of the hood, to fix and / or lock the washing or cutlery basket accommodated in the treatment chamber and transferred in the previously fixed or fixable position.On the other hand, the positioning and / or alignment system should be further designed to release the fixation and / or locking of the washing or cutlery basket accommodated in the treatment chamber when opening the hood, i.e. when transferring the hood from the state in which the treatment chamber is closed with the aid of the hood into a state in which the treatment chamber is no longer closed with the aid of the hood.According to a preferred implementation of the positioning and / or alignment system, it is provided that the positioning and / or alignment system has a first alignment aid connected or connectable to the hood and a second alignment aid connected or connectable to the washing or cutlery basket. In this case, the first alignment aid is connected or connectable to the hood and the second alignment aid is connected or connectable to the washing or cutlery basket in such a way that, when the hood is moved into the state in which the treatment chamber is closed with the washing or cutlery basket accommodated in the treatment chamber by means of the hood, the first alignment aid comes into operative connection with the second alignment aid.Different embodiments are possible for the first and second alignment aid. According to one conceivable implementation of the first and second alignment aids, it is provided that the first alignment aid has a centring bevel with an inclined centring surface and the second alignment aid has a centring bevel, preferably designed to be partially or regionally complementary to the centring bevel of the first alignment aid, with an inclined centring surface. The centering slopes of the first and second alignment aids are configured such that, when the hood is moved into the state in which the treatment chamber is closed with the washing or cutlery basket accommodated in the treatment chamber by means of the hood, they meet one another and induce a movement of the washing or cutlery basket relative to the treatment chamber in the first direction, that is to say in a direction parallel to the direction of longitudinal extent of the rear wall of the dishwasher.It is furthermore conceivable that the first alignment aid has a positioning slope with an inclined positioning surface and the second alignment aid has a positioning slope with an inclined positioning surface, which is preferably designed to be partially or regionally complementary to the positioning slope of the first alignment aid, wherein the positioning slopes of the first and second alignment aids are designed such that, when the hood is moved into the state in which the treatment chamber is closed with the washing or cutlery basket accommodated in the treatment chamber by means of the hood, they meet one another and induce a movement of the washing or cutlery basket relative to the treatment chamber in the second direction, that is to say preferably towards the rear wall of the dishwasher.The corresponding alignment aids can be formed integrally with the hood or the washing or cutlery basket.However, it is preferably provided that the first alignment aid is preferably detachably connected or connectable to the hood in an exchangeable manner, and that the second alignment aid is preferably detachably connected or connectable to the washing or cutlery basket in an exchangeable manner. This embodiment variant has the advantage that already existing dishwashers can be retrofitted subsequently without a corresponding positioning and / or alignment system.Particularly preferably, the positioning and / or alignment system has two lateral first alignment aids which are opposite one another and are connected or can be connected to a side wall of the hood in each case, and two lateral second alignment aids which are opposite one another and are connected or can be connected to a side wall region of the washing or cutlery basket in each case.The present invention and in particular the positioning and / or alignment system is preferably used in a dishwasher which has the "elimination polishing" technology already mentioned at the outset, in which a cutlery basket is movably mounted in the treatment chamber in order, in particular during the clear flushing, to move the cutlery items accommodated by the cutlery basket at least once relative to one another and / or relative to a cutlery accommodation device, in order in this way to avoid or at least reduce static contact points between the individual cutlery items among one another and / or between the cutlery items and the cutlery accommodation device. In this case, the cutlery basket is assigned a movement mechanism which is designed to move the cutlery basket or washware accommodated by the cutlery basket relative to the cutlery basket, in particular as required.The movement mechanism has an output shaft which automatically couples to a drive shaft, in particular to a rear wall of the treatment chamber, which rear wall delimits the treatment chamber at least partially or in regions, when the cutlery basket accommodated in the treatment chamber is transferred into the predetermined or fixable position and / or orientation.The invention is described in more detail below with reference to the attached drawings.The following are shown: FIG. 1 shows schematically and in a front view an exemplary embodiment of the dishwasher according to the invention, wherein the dishwasher is designed as a hood dishwasher, and wherein the dishwasher is shown in its open state in FIG. 1 ; FIG. 2 shows schematically and in a side view the exemplary embodiment of the dishwasher according to FIG. 1 ; FIG. 3 shows schematically and in a plan view a drive unit which is integrated in the treatment chamber of the dishwasher according to FIG. 1 and is designed to correspondingly manipulate a cutlery receiving device of a cutlery basket received in the treatment chamber of the dishwasher; FIG. 4 shows schematically and in a plan view an exemplary embodiment of an adapter basket of a cutlery receiving device, which can be received in the treatment chamber of the dishwasher according to FIG. 1, wherein the adapter basket can be operatively connected to a drive unit integrated in the treatment chamber of the dishwasher in order to manipulate a cutlery basket of the cutlery receiving device, which is not shown in FIG. 4 ; FIG. 5 is a schematic and isometric view of the adapter basket according to FIG. 4 ; FIG. 6 is a schematic side view of the adapter basket according to FIG. 4 ; FIG. 7 is a schematic and rear view of the adapter basket according to FIG. 4 ; FIG. 8 schematically shows a partial area of a rear wall of a dishwasher designed as a hood dishwasher according to an exemplary embodiment of the invention; FIG. 9 shows schematically and in a front view the partial region of the rear wall region according to FIG. 8 ; FIG. 10 schematically and in an isometric view, an exemplary embodiment of a first alignment aid of a positioning and / or alignment system according to the invention; FIG. 11 schematically and in an isometric view, an exemplary embodiment of a second alignment aid of the positioning and / or alignment system; FIG. 12A is a schematic and isometric view of the interaction between the first alignment aid according to FIG. 10 and the second alignment aid according to FIG. 11 during the closing of the hood of an exemplary embodiment of the hood dishwasher according to the invention, namely before the first and second alignment aids come into contact; FIG. 12B shows schematically and in a side view the first and second alignment aids according to FIG. 12A ; FIG. 13A is a schematic and isometric view of the interaction between the first and second alignment aids according to FIGS. 10 and 11, namely upon the contacting of the alignment aids; FIG. 13B shows schematically and in a side view the first and second alignment aids according to FIG. 13A ; FIG. 14 is schematic views of the first and second alignment aids according to FIGS. 13A, B, namely during a further closing of the hood; FIG. 15 is schematic views of the first and second alignment aids according to FIG. 14, namely during a further closing of the hood; and FIG. 16 is schematic views of the first and second alignment aids in a state in which the hood is in its fully closed state.FIGS. 1 and 2 schematically show an exemplary embodiment of the dishwasher 1 according to the invention. This is a commercial dishwasher 1, which is designed as a program machine.In detail, the exemplary embodiment of the dishwasher 1 according to the invention shown in FIGS. 1 to 3 relates to a program machine designed as a hood-type or (basket-type) push-through dishwasher 1.A commercial dishwasher 1 designed as a program machine usually has a program control device 20 for controlling at least one cleaning program and a treatment chamber 2 which can be closed by at least one door and / or at least one hood 3 in a machine housing for receiving washware to be cleaned, such as, for example, dishes, cutlery 4, pots, pans, tablets and / or glasses.Although not shown in the drawings, it is advantageous from an ergonomic point of view if, in particular, a program machine designed as a push-through dishwasher 1 is equipped on its inlet and outlet side with a table (inlet table or outlet table). The baskets loaded with dirty washware can thus be pushed into the dishwasher 1 on the feed table. After the washware has been treated in the treatment chamber 2 of the dishwasher 1, the washware basket with the washware which has then been cleaned is moved out of the machine onto the outlet table.The exposure time, i.e. the time during which the washware wets the treatment chamber 2 of a programmable automatic machine, is dependent in particular on the duration of the washing phase determined via the treatment program. For normally soiled washware, such as plates, dishes, cups and / or glasses, a cleaning cycle comprising a washing phase and a subsequent final rinse phase is generally carried out between 50 and 100 seconds. However, a longer treatment of the washware may be necessary, in particular if the washware has a higher degree of soiling.The exemplary embodiment of the dishwasher 1 according to the invention shown in FIGS. 1 and 2 has a cutlery receiving device 6 which can be received in the treatment chamber 2 of the dishwasher 1. In the exemplary embodiment, the cutlery receiving device 6 is designed as a cutlery holder. In principle, however, it would also be conceivable for the cutlery receiving device 6 to be designed as a flat basket.The cutlery receiving device 6 serves to receive cutlery 4 to be cleaned in the treatment chamber 2 of the dishwasher 1. the cutlery receiving device 6 (cutlery holder) is designed to receive the cutlery 4 to be cleaned in such a way that the individual cutlery parts are movable relative to one another and in particular also relative to the cutlery receiving device 6 itself.The exemplary embodiment of the dishwasher 1 according to the invention shown schematically in FIGS. 1 and 2 has-as indicated schematically in FIG. 3-a drive 5, which is preferably accommodated or receivable completely in the treatment chamber 2 of the dishwasher 1 and which serves to drive a cutlery receiving device 6 possibly accommodated in the treatment chamber 2 accordingly.In particular, the drive 5 is designed to introduce at least one and preferably a plurality of mechanical pulses, as required, continuously, periodically or cyclically into the cutlery receiving device 6 and thus also into the cutlery 4 received by the cutlery receiving device 6, in such a way that the individual cutlery items received by the cutlery receiving device 6 are moved relative to one another and relative to the cutlery receiving device 6 itself, so that in this way static contact points between the cutlery items among one another but also between the cutlery items and the cutlery receiving device 6 are effectively eliminated.In particular, the drive 5 assigned to the cutlery receiving device 6 and preferably accommodated in the treatment chamber 2 of the dishwasher 1 can also be designed to accelerate or move the cutlery receiving device 6 and thus the cutlery items accommodated in the cutlery receiving device 6 as required, periodically, continuously or cyclically in such a way that the water droplets possibly adhering to the cutlery items are released from the cutlery items by centrifugal force.As can be seen from the illustration in FIG. 3, it is provided in the exemplary embodiment of the dishwasher 1 according to the invention shown there that the drive 5 is designed as a rotary drive, wherein a corresponding spindle 8 can be driven with the aid of a motor, wherein the spindle 8 in turn drives a drive disc 10 in the treatment chamber 2 of the dishwasher 1 in a rotary manner via a gear 9. The cutlery receptacle (replaceable) embodied in particular as a cutlery receptacle can be placed on the drive disc 10, in order to thus achieve an operative connection between the drive 5 on the one hand and the cutlery receptacle device 6 on the other hand.FIG. 4 shows schematically and in a plan view an exemplary embodiment of an adapter basket of a cutlery receiving device 6 which can be accommodated in the treatment chamber 2 of the dishwasher 1 according to FIG. 1, wherein the adapter basket can be operatively connected to a drive unit integrated in the treatment chamber 2 of the dishwasher 1 in order to manipulate a cutlery container of the cutlery receiving device 6, which container is not shown in FIG. 4.The adapter basket 6 according to FIG. 4 is shown schematically and in an isometric view in FIG. s, while in FIG. 6 the adapter basket 6 according to FIG. 4 is shown schematically and in a side view and in FIG. 7 the adapter basket 6 according to FIG. 4 is shown schematically and in a rear view.FIG. 8 schematically shows a partial area of a rear wall of a dishwasher 1 designed as a hood dishwasher according to an exemplary embodiment of the invention, namely with the drive shaft 5, which is to be coupled to an output shaft 7 of the adapter basket 6 according to FIGS. 4 to 7.FIG. 9 shows schematically and in a plan view the partial region of the rear wall region according to FIG. 8.The object of the present invention is to achieve, in the case of a dishwasher 1 in the form of a dishwasher or hood dishwasher which has a treatment chamber 2 which can be closed by a hood 3 which can be moved at least substantially vertically and in which a dishwasher / cutlery basket / adapter basket 6 can be accommodated, that, when the hood 3 is closed or the hood 3 is moved into a state in which the treatment chamber 2 is closed by means of the hood 3, a dishwasher basket / cutlery basket / adapter basket accommodated in the treatment chamber 2 is automatically transferred automatically into a predetermined or fixable position and / or orientation.This requirement is necessary in particular in hood dishwashers which are designed to operate on a conventional automatic cycle.As shown for example in FIGS. 1 and 2, the "elimination polishing" technology is provided.In such dishwashers 1, a cutlery holding device comprising an adapter basket 6 with an output shaft 7 and a rotatably mounted cutlery basket which can be removed from the adapter basket 6 must be placed in the treatment chamber 2 of the hood dishwasher 1 in such a way that the output shaft 7 of the adapter basket 6 is coupled to a drive shaft 5 arranged on the machine side on a rear wall 4 of the treatment chamber 2, in order to thus enable a force transmission.In addition, it must be ensured that the cutlery holding device is held in position during the entire washing program and the coupling of the drive shaft 5 and the output shaft 7 remains unchanged.In contrast to bottom table dishwashers, there are the following problems in hood dishwashers: 1. lateral positioning of the cutlery receiving device 6 in the treatment chamber 2:In hood dishwashers, when the hood 3 is open, there are no lateral stops / positioning aids, since the loading and unloading of the washing or cutlery baskets 6, and thus also the loading and unloading of a cutlery receiving device, which can be regarded as a special form of cutlery basket 6, usually takes place laterally from right to left or from left to right and lateral stops thus form an obstacle for the insertion or unloading of cutlery receptacles.Pushing out the wash basket / cutlery receiving device 6 would be shown.In contrast, in the case of lower table machines, the loading of the wash basket / cutlery basket / adapter basket 6 takes place at the front via the opened door of the lower table machine, wherein the two side walls of the machine automatically serve as lateral stops / positioning aids for the correct alignment of the wash basket / cutlery basket / adapter basket 6 within the treatment chamber 2, so that the axes of the output shaft and of the drive shaft S, 7 are centred with respect to one another.In contrast to this, the operator pushes the dishwasher basket / cutlery holding device 6 laterally into the machine only approximately (according to eye dimension) in hood dishwashers, i.e. there is always the problem here that the axes of the output shaft and the drive shaft 5, 7 are not yet centered with respect to one another after the cutlery holding device 6 has been pushed into the hood dishwasher and coupling is therefore not easily possible.2. Coupling of Output and Drive Shaft 5, 7:If the cutlery receiving device 6 in the case of lower table machines has not already been pushed sufficiently far enough by the operator into the treatment chamber 2 to ensure coupling of the output shaft and the drive shaft 5, 7, this takes place at the latest when the door is closed. In this case, it is advantageous that the direction of movement when closing the door is in the same direction as the necessary direction of movement of the cutlery receiving device 6, i.e. when closing the door, the cutlery receiving device 6 is pushed into the correct position by the closing door, so that the output shaft 7 of the cutlery receiving device 6 is securely coupled to the drive shaft 5 of the machine.This cannot be easily implemented in hood dishwashers because the direction of movement when closing the hood 3 has a different orientation than the necessary direction of movement of the cutlery receiving device 6 (hood 3=vertical direction of movement; cutlery receiving device 6=botial direction of movement).In order to facilitate the work for the operator and to ensure a secure and reliable positioning of the cutlery receiving device 6, the lateral positioning and the coupling of the output shaft and the drive shaft 5, 7 should not be performed by the operator, but automatically when closing the hood 3.The closing movement of the hood 3 is to be used in such a way that, with the aid of add-on parts on the hood 3 and adapter basket 6 of the cutlery receiving device 6, the cutlery receiving device 6 is automatically centered and positioned, or the output shaft 7 on the adapter basket 6 of the cutlery receiving device 6 is coupled to the drive shaft 5 on the machine rear wall 4.For this purpose, the dishwasher 1 has a positioning and / or alignment system which is designed, when the hood 3 is moved into a state in which the treatment chamber 2 is or is closed with the aid of the hood 3, to transfer a dishwasher basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 into a predetermined or fixable position and / or alignment.In this case, the positioning and / or alignment system is designed, when the hood 3 is moved into the state in which the treatment chamber 2 is or is closed with the aid of the hood 3, to transfer the wash basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 sequentially and in particular after a predetermined or fixable sequence of events into the predetermined or fixable position and / or alignment.In detail, the positioning and / or alignment system is designed, when moving the hood 3 into the state in which the treatment chamber 2 is or is closed with the aid of the hood 3, to first move the wash basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 in a first direction R 1 running at least substantially perpendicular to the direction of movement VR of the hood 3 and to position and / or align it with respect to the treatment chamber 2, and then, when the hood 3 is moved further into the state in which the treatment chamber 2 is closed with the aid of the hood 3, the basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 to be moved in a second direction R 2 perpendicular to the first direction R 1 and to the movement direction VR of the hood 3 and to be positioned and / or oriented with respect to the treatment chamber 2 such that the basket / cutlery basket / adapter basket 6 is then present in the predetermined or fixable position.As shown, for example, in FIGS. 8 and 9, the dishwasher 1 has a rear wall 4 which delimits the treatment chamber 2 at least partially or in regions, wherein the first direction R 1 runs at least substantially parallel to a longitudinal extent direction of the rear wall 4 and the second direction R 2 runs at least substantially perpendicular to the longitudinal extent direction of the rear wall 4, wherein, when the dishwasher / cutlery basket / adapter basket 6 is moved in the second direction R 2, said rear wall is preferably moved towards the rear wall 4.As shown in particular in FIGS. 10 and 11, the positioning and / or alignment system has a first alignment aid 11 connected or connectable to the hood 3 and a second alignment aid 14 connected or connectable to the wash basket / cutlery basket / adapter basket 6, wherein the first alignment aid 11 is connected or connectable to the hood 3 and the second alignment aid 14 is connected or connectable to the wash basket / cutlery basket / adapter basket 6 such that when the hood 3 is moved into the state in which the treatment chamber 2 is or is closed with the wash basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 by means of the hood 3, the first alignment aid 11 is operatively connected to the second alignment aid.Furthermore, it can be seen from the representations in FIGS. 10 and 11, for example, that the first alignment aid 11 has a centring slope 12 with an inclined centring surface and the second alignment aid 14 has a centring slope 15 with an inclined centring surface, which preferably is designed to be partially or in regions complementary to the centring slope 12 of the first alignment aid 11, wherein the centring slopes 12, 15 of the first and second alignment aids 11, 14 are designed such that, when the hood 3 is moved into the state in which the treatment chamber 2 is or is closed with the washing basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 by means of the hood 3, they meet one another and initiate a movement of the washing basket / cutlery basket / adapter basket 6 relative to the treatment chamber 2 in the first direction R 1.Furthermore, it can be seen from the representations in FIGS. 10 and 11, for example, that the first alignment aid 11 has a positioning slope 13 with an inclined positioning surface and the second alignment aid 14 has a positioning slope 16 with an inclined positioning surface, which is preferably designed to be partially or in regions complementary to the positioning slope 13 of the first alignment aid 11, wherein the positioning slopes 13, 16 of the first and second alignment aids 11, 14 are designed such that, when the hood 3 is moved into the state in which the treatment chamber 2 is or is closed with the washing basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 by means of the hood 3, they meet one another and initiate a movement of the washing basket / cutlery basket / adapter basket 6 relative to the treatment chamber 2 in the second direction R 2.The first alignment aid 11 according to FIG. 10 is fastened to the right and left of the hood 3, wherein the two components (right, left) are mirror-symmetrical to one another. The same applies in the transferred sense to the second alignment aid 14 according to FIG. 11, which is screwed to the cutlery basket on the right and left, wherein the two components (right, left) are mirror-symmetrical to one another.The first alignment aid 11 serving as a centering aid on the hood side is fixedly mounted on the hood 3 and accordingly moves with the hood 3 upward or downward, when the latter is opened or closed: exclusively vertical movement VR. The second alignment aid 14 serving as a centering aid for the wash basket / cutlery basket / adapter basket 6 is fixedly mounted on the wash basket / cutlery basket / adapter basket 6, which permits only a horizontal movement. By means of the centering or positioning slopes on both components, the vertical movement of the hood 3 is converted into a horizontal movement / positioning of the wash basket / cutlery basket / adapter basket 6.The operation of the first and second alignment aids will be described in more detail below with reference to FIGS. 12A, B, 13A, B and 14 to 16 :In FIGS. 12A, B, a state is shown in which the hood 3 is opened and the first and second alignment aids 11, 14 (centering aid (hood 3) and centering aid (basket)) do not yet touch.As shown in FIGS. 13A, B, when the hood 3 is closed, the first alignment jig 11 (centering jig hood 3) makes a vertical downward movement. If the cutlery basket is arranged eccentrically, it is correspondingly displaced to the right or left as soon as the centering slopes 12, 15 of the first and second alignment aids 11, 14 touch each other. In this case, the closing force of the hood 3 is partially converted into a horizontal force component which pushes the cutlery basket 6 aside.The further the hood 3 is closed, the further the cutlery basket 6 is displaced until the two centring slopes 12, 15 have slid past one another (cf. FIG. 14 ). The centering of the cutlery basket 6 is thus finished.However, the two positioning slopes 13, 16 do not yet touch one another, i.e. positioning / displacement in the direction of the rear wall 4 of the treatment chamber 2 does not yet take place.If, as indicated in FIG. 15, the hood 3 is closed even further, the positioning slopes 13, 16 touch one another, and as a result the vertical movement of the hood 3 is converted into a horizontal movement of the cutlery basket 6 in the direction of the rear wall 4 of the treatment chamber 2, i.e. the cutlery basket 6 is pushed to the rear.A movement of the cutlery basket 6 to the right / left is not possible, since this movement is blocked by the first alignment aid 11 (centering aid (hood 3)).When the hood 3 is completely closed-as shown in FIG. 16-the two positioning slopes 13, 16 have slid past each other and the cutlery basket 6 has been displaced as far as possible / necessary in the direction of the rear wall 4 of the treatment chamber 2. The cutlery basket 6 is now in the desired position. In addition, the freedom of movement of the cutlery basket 6 is restricted both to the right / left or front / rear as long as the hood 3 is closed.The opening of the hood 3 has no effect on the position of the cutlery basket 6, i.e. no force is exerted on the cutlery basket 6 by the upward movement of the hood 3 and the cutlery basket remains in place.The invention is not limited to the embodiment shown in the drawing, but results from a combination of all features disclosed herein.In particular, it is thus conceivable that the positioning and / or alignment system is further configured to move and / or expel the wash basket / cutlery basket / adapter basket 6 accommodated in the treatment chamber 2 from the previously defined or fixable position into a removal position when the hood 3 is transferred from the state in which the treatment chamber 2 is closed with the aid of the hood 3 into a state in which the treatment chamber 2 is no longer closed with the aid of the hood 3.Some aspects of the dishwasher 1 according to the invention are summarized below: 1. the dishwasher 1 is equipped with an automatic basket positioning aid designed as a positioning and / or alignment system, which positions a basket / cutlery basket / adapter basket 6 automatically within the machine when closing the hood 3; 2. the basket positioning aid consists of different elements (first and second alignment aids 11, 14) which are mounted on the hood 3 on the one hand and on the basket / cutlery basket / adapter basket 6 on the other; 3. the basket positioning aid uses the vertical downward movement VR of the hood 3 to align the basket / cutlery basket / adapter basket 6 centrally (right / left alignment of the basket 6 in front view on the machine) when closing the hood 3; in a first step, the basket positioning aid uses the vertical downward movement VR of the hood 3; 4. the basket positioning aid, when closing the hood 3, uses in a second step the vertical downward movement VR of the hood 3 to push the wash basket / cutlery basket / adapter basket 6 rearward towards the treatment chamber rear wall 4, so that an output shaft 7 on the wash basket / cutlery basket / adapter basket 6 is coupled to a drive shaft 5 on the treatment chamber rear wall 4 and a force transmission can take place; 5. the wash basket / cutlery basket / adapter basket 6 is held in position by the basket positioning aid when the hood 3 is closed, so that even when the force is introduced by the drive shaft 5, an undesired movement / displacement of the wash basket / cutlery basket / adapter basket 6 during the cleaning process is avoided; 6.- The elements of the basket positioning, i.e. the first and second alignment aids 11, 14 which are attached to the basket / cutlery basket / adapter basket 6 and to the hood 3; 7 are separate elements which can theoretically also be retrofitted; 7. the elements of the basket positioning, i.e. the first and second alignment aids 11, 14 which are attached to the basket / cutlery basket / adapter basket 6 and to the hood 3, are alternatively not separate elements but rather a fixed component of the basket / cutlery basket / adapter basket 6 and of the hood design; 8. an additional geometry is optionally attached to the centering aids, i.e. to the first and second alignment aids 11, 14, which, when the hood 3 is opened, uses the vertical upward movement of the hood 3 to push the wash basket / cutlery basket / adapter basket 6 automatically forwards, i.e. away from the treatment chamber rear wall 4, and thereby automatically decouple the output shaft 7 of the adapter basket 6 from the drive shaft 5; and / or 9. the basket positioning aid, i.e. the first and second alignment aids 11, 14, can be attached to any wash basket / cutlery basket / adapter basket 6 so that, for example, the bottle wash basket can also be aligned exactly in the machine.List of reference characters1 Dishwasher 2 Treatment chamber 3 Hood 4 Rear wall of the treatment chamber 5 Drive / drive shaft in or on the rear wall of the treatment chamber 6 Dishwasher / cutlery basket / cutlery receiving device / adapter basket 7 Output / output shaft in or on the dishwasher basket / cutlery basket / adapter basket 8 Spindle 9 Gear 10 Drive disc 11 First alignment aid 12 Centring bevel of the first alignment aid 13 Positioning bevel of the first alignment aid 14 Second alignment aid 15 Centring bevel of the second alignment aid 16 Positioning bevel of the second alignment aid 20 Program control device 21 Washware / cutlery / cutlery part R 1 First direction R 2 Second direction VR Direction of movement of the hood

Claims

Dishwasher (1) in the form of a rack-push dishwasher or hood dishwasher, which has a treatment chamber (2) which can be closed by a hood (3) which can be moved at least substantially vertically and in which at least one rack / cutlery basket / adapter basket (6) can be accommodated, in particular with correspondingly accommodated washware, characterized bya positioning and / or alignment system which is designed, when the hood (3) is moved into a state in which the treatment chamber (2) is or is closed by means of the hood (3), to transfer a rack / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) into a predetermined or fixable position and / or alignment.Dishwasher (1) according to claim 1, wherein the positioning and / or alignment system is configured to, when the hood (3) is moved into the state in which the treatment chamber (2) is or is closed with the aid of the hood (3), transfer the wash basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) sequentially and in particular after a predetermined or fixable sequence of events into the predetermined or fixable position and / or alignment.Dishwasher (1) according to claim 1 or 2, wherein the positioning and / or alignment system is configured, when moving the hood (3) into the state in which the treatment chamber (2) is or is closed with the aid of the hood (3), to first move the wash basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) in a first direction (R1) running at least substantially perpendicular to the direction of movement (VR) of the hood (3) and to position and / or align it with respect to the treatment chamber (2), and then, when the hood (3) is moved further into the state in which the treatment chamber (2) is closed with the aid of the hood (3), the basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) to be moved in a second direction (R2) perpendicular to the first direction (R1) and to the movement direction (VR) of the hood (3) and to be positioned and / or aligned with respect to the treatment chamber (2) in such a way that the basket / cutlery basket / adapter basket (6) is then present in the previously defined or fixable position.Dishwasher (1) according to claim 3, wherein the dishwasher (1) has a rear wall (4) which delimits the treatment chamber (2) at least partially or in regions, wherein the first direction (R1) runs at least substantially parallel to a direction of longitudinal extent of the rear wall (4) and the second direction (R2) runs at least substantially perpendicular to the direction of longitudinal extent of the rear wall (4), wherein when the dishwasher / cutlery basket / adapter basket (6) is moved in the second direction (R2), said rear wall is preferably moved towards the rear wall (4).Dishwasher (1) according to claim 3 or 4, wherein the positioning and / or alignment system is configured to move the wash basket / cutlery basket / adapter basket (6) in a direction opposite to the second direction (R2) when the hood (3) is transferred from the state in which the treatment chamber (2) is closed with the aid of the hood (3) into a state in which the treatment chamber (2) is no longer closed with the aid of the hood (3).Dishwasher (1) according to one of claims 1 to 5, wherein the positioning and / or alignment system is further configured to move and / or expel the wash basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) from the predetermined or fixable position into a removal position when the hood (3) is transferred from the state in which the treatment chamber (2) is closed with the aid of the hood (3).Dishwasher (1) according to one of claims 1 to 6, wherein the positioning and / or alignment system is configured, in the state in which the treatment chamber (2) is closed with the aid of the hood (3), to fix and / or lock the wash basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) and transferred in the predetermined or fixable position.Dishwasher (1) according to claim 7, wherein the positioning and / or alignment system is further configured to release the fixation and / or locking of the wash basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) when the hood (3) is transferred from the state in which the treatment chamber (2) is closed with the aid of the hood (3) into a state in which the treatment chamber (2) is no longer closed with the aid of the hood (3).Dishwasher (1) according to one of claims 1 to 8, wherein the positioning and / or alignment system has a first alignment aid (11) connected or connectable to the hood (3) and a second alignment aid (14) connected or connectable to the wash basket / cutlery basket / adapter basket (6), wherein the first alignment aid (11) is connected or connectable to the hood (3) and the second alignment aid (14) is connected or connectable to the wash basket / cutlery basket / adapter basket (6) in such a way that, when the hood (3) is moved into the state in which the treatment chamber (2) is or is closed with the wash basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) by means of the hood (3), the first alignment aid (11) comes into operative connection with the second alignment aid (14).Dishwasher (1) according to claim 9 and at least according to claim 3, wherein the first alignment aid (11) has a centring slope (12) with an inclined centring surface and the second alignment aid (14) has a centring slope (15) with an inclined centring surface, which preferably is designed to be partially or regionally complementary to the centring slope (12) of the first alignment aid (11), wherein the centring slopes (12, 15) of the first and second alignment aids (11, 14) are designed such that, when the hood (3) is moved into the state in which the treatment chamber (2) is or is closed with the washing basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) by means of the hood (3), These meet each other and initiate a movement of the wash basket / cutlery basket / adapter basket (6) relative to the treatment chamber (2) in the first direction (R1).Dishwasher (1) according to claim 9 or 10 and at least according to claim 3, wherein the first alignment aid (11) has a positioning slope (13) with an inclined positioning surface and the second alignment aid (14) has a positioning slope (16) with an inclined positioning surface, which is preferably designed to be partially or in regions complementary to the positioning slope (13) of the first alignment aid (11), wherein the positioning slopes (13, 16) of the first and second alignment aids (11, 14) are designed such that, when the hood (3) is moved into the state in which the treatment chamber (2) is or is closed with the washing basket / cutlery basket / adapter basket (6) accommodated in the treatment chamber (2) by means of the hood (3), these meet and initiate a movement of the wash basket / cutlery basket / adapter basket (6) relative to the treatment chamber (2) in the second direction (R2).Dishwasher (1) according to one of claims 9 to 11, wherein the first alignment aid (11) is interchangeably connected or connectable to the hood (3), preferably in a releasable manner; and / or wherein the second alignment aid (14) is interchangeably connected or connectable to the wash basket / cutlery basket / adapter basket (6), preferably in a releasable manner.Dishwasher (1) according to one of claims 9 to 12, wherein the positioning and / or alignment system has two lateral, mutually opposite first alignment aids (11) which are connected or can be connected to a side wall of the hood (3) in each case, and two lateral, mutually opposite second alignment aids (14) which are connected or can be connected to a side wall region of the wash basket / cutlery basket / adapter basket (6) in each case.Dishwasher (1) according to one of claims 1 to 13, wherein the dishwasher basket / cutlery basket / adapter basket (6) has a movement mechanism, or wherein the dishwasher basket / cutlery basket / adapter basket (6) is assigned a movement mechanism, wherein the movement mechanism is designed to move washware, in particular cutlery (21), which is received or supported / held by the dishwasher basket / cutlery basket / adapter basket (6) relative to the dishwasher basket / cutlery basket / adapter basket (6), wherein for this purpose the movement mechanism has an output shaft (7) which, when the dishwasher basket / cutlery basket / adapter basket (6) is transferred into the predetermined or fixable position and / or orientation, is automatically moved with a drive shaft (5), in particular, coupling takes place at a rear wall (4) of the treatment chamber (2) which delimits the treatment chamber (2) at least partially or in regions.

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