Basket transport device for cleaning device, and cleaning device

Abstract

The invention relates to a basket transport device (1) for a cleaning device (2), which comprises a frame (11) for supporting a basket (3) for items to be cleaned, a transport element for moving the basket (3) relative to the frame (11) in a transport direction, a drive magnetic rotor (13) which is mounted so as to be rotatable relative to the frame (11) about a drive axis of rotation that is perpendicular to the transport direction, and a coupling element which is coupled to the drive magnetic rotor (13) and to the transport element. If a torque acts on the drive magnetic rotor (13), the coupling element is configured to transmit the torque to the transport element, so that if the basket (3) is supported by the frame (11), the transport element exerts a force on the basket (3) and thereby moves the basket (3) in the transport direction.

Description

[0001] Basket transport device for cleaning device and cleaning device

[0002] Description

[0003] The present invention relates to a basket transport device for a cleaning device and to a cleaning device.

[0004] Cleaning devices, such as pass-through dishwashers, are becoming increasingly automated. For example, a pass-through dishwasher with an automatic hood, in which the hood of the pass-through dishwasher opens and closes automatically, is described in DE 10054392 Ai.

[0005] However, with conventional pass-through dishwashers, a user must manually insert a dish basket containing unwashed dishes into the wash cabinet, for example, after opening the hood. After closing the hood, completing the wash cycle, and reopening the hood, the user must then manually remove the dish basket containing the washed dishes from the wash cabinet. This creates time-consuming tasks for the user, who must manually replace the basket after each wash cycle, and thus reduces the wash performance, i.e., the number of washed baskets per unit of time (e.g., per hour).

[0006] WO 2019 / 060482 Ai describes a hood-type dishwasher comprising a wash chamber with a washing system designed as a circulation system. The hood-type dishwasher includes a loading / unloading device for automatically loading the wash chamber with wash ware and / or for automatically unloading wash ware from the wash chamber. For this purpose, a rack transport system of the loading / unloading device has a plurality of cams designed as grippers that extend into the wash chamber of the dishwasher. These grippers serve to form a releasable engagement with a dish basket to be transported into the wash chamber or with a dish basket to be transported out of the wash chamber.

[0007] US 2008 / 0210272 Ai discloses a dishwasher with a wash cabinet that can be opened and closed via a door to load the wash cabinet with wash ware. For this purpose, wash baskets are provided that can be loaded with wash ware. The wash baskets can be moved out of and back into the wash cabinet via rollers and an electric motor.

[0008] It is an object of the present invention to provide a basket transport device for a cleaning device and a cleaning device by which the user-friendliness is further improved taking into account the desired applications.

[0009] This object is achieved by a basket transport device according to claim 1, a cleaning device according to claim 13, and a cleaning system according to claim 21. Claims 2 to 12 relate to particularly advantageous implementations of the basket transport device according to claim 1, and claims 14 to 20 relate to particularly advantageous implementations of the cleaning device according to claim 13.

[0010] According to the present invention, a basket transport device for a cleaning device comprises a frame, a transport element or a drive train, a drive magnetic rotor, and a coupling element. The cleaning device can be, for example, a dishwasher, in particular a pass-through dishwasher or a hood-type dishwasher.

[0011] The frame serves to support or hold a basket for items to be cleaned in the cleaning device. The basket can, in particular, be a dish basket for dishes to be washed in a dishwasher. The basket can be inserted into the basket transport device without tools, so that it rests on the frame, in particular such that, when the cleaning device is in an operating state, a cleaning liquid can be sprayed from an area below the frame upwards through the frame in order to clean the items in the basket. For this purpose, the frame can, in particular, comprise two parallel, spaced-apart rails, as described further below.

[0012] The transport element or drive train serves to move or transport or drive the basket relative to the frame or the basket transport device or the cleaning device along a transport direction. For example, the cleaning device can have a cleaning area in which the items to be cleaned are cleaned, e.g. a rinsing area, a rinsing zone, a rinsing chamber or a rinsing tank, and the transport element or drive train can move a basket carried by the frame in the cleaning area, after a cleaning process has been carried out, out of the cleaning area along the transport direction. This empties the cleaning area so that another basket with items not yet cleaned can be brought into the cleaning area. The drive magnetic rotor is mounted rotatably relative to the frame about a drive rotation axis that runs perpendicular to the transport direction.In particular, the drive magnet rotor can be attached to the frame or to a part of the basket transport device that is immovable relative to the frame.

[0013] In a particularly relevant application, the basket transport device can, for example, be inserted into and removed from a receiving unit of a cleaning device. In this case, the cleaning device can comprise a control magnetic rotor that is rotatably mounted relative to the receiving unit about a control rotation axis. When the basket transport device is inserted into the receiving unit, a magnetic attraction force can act between the control magnetic rotor and the drive magnetic rotor, so that a torque acting on the control magnetic rotor is transferred to the drive magnetic rotor, at least when the torque is less than or equal to a maximum torque. Thus, the drive magnetic rotor of the basket transport device according to the invention can form a magnetic coupling with the control magnetic rotor of the cleaning device.In other words, when the control magnet rotor rotates about the control rotation axis, a rotating magnetic field can be generated, which induces a torque acting on the drive magnet rotor, so that the drive magnet rotor rotates about the drive rotation axis.

[0014] The coupling element is coupled or connected to the drive magnetic rotor and to the transport element, respectively. When a torque, in particular a torque induced by a magnetic field, acts on the drive magnetic rotor, the coupling element transmits the torque to the transport element, so that when the basket is supported by the frame, the transport element exerts a force on the basket or transmits power to the basket, thereby moving or transporting the basket along the transport direction. The coupling element can, in particular, be a transmission. The transmission can, in particular, be a mechanical transmission and can comprise one or more partial transmissions, in particular a traction transmission (e.g., a chain transmission and / or a toothed belt transmission and / or a V-belt transmission) and / or a gear transmission (e.g., a toothed wheel transmission and / or a friction gear transmission).The gearbox can have any gear ratio; however, the gearbox does not have to translate the speed, meaning the input speed of the drive magnet rotor can be equal to the output speed of the transport element. The force exerted by the transport element on the basket, or the power transferred by the transport element to the basket, can be caused, for example, by static friction between the transport element and the basket resting on the transport element or in contact with the transport element, or by a positive connection between the transport element and the basket.

[0015] The basket transport device according to the invention has the advantage that it can be easily inserted into a cleaning device and removed from the cleaning device. When the basket transport device according to the invention is inserted into a cleaning device, the drive magnetic rotor can be coupled, for example, to a control magnetic rotor located in an interior or service space or undercarriage of the cleaning device, so that the drive magnetic rotor and the control magnetic rotor form a magnetic coupling and a torque is transmitted from the control magnetic rotor to the drive magnetic rotor. The coupling element allows the torque to be further transmitted to the transport element, so that when a basket is carried by the frame, the transport element exerts a force on the basket and thereby moves the basket along the transport direction.

[0016] When the basket transport device is installed in a cleaning device as described above, the drive magnetic rotor can be located within a cleaning area of ​​the cleaning device, e.g., a washing chamber of a dishwasher, and the control magnetic rotor can be located outside the cleaning area, e.g., in an interior or service space or undercarriage of the cleaning device. The drive magnetic rotor and the control magnetic rotor can be hydraulically separated from each other, in particular by a side wall of the cleaning area; in this case, too, the magnetic attraction between the drive magnetic rotor and the control magnetic rotor acts. Thus, a breakthrough between the interior of the cleaning device and the cleaning area can be avoided. No drilling of the side wall of the cleaning area is required, no leakage occurs, and a mechanical seal is not required.

[0017] Furthermore, the removable basket transport device simplifies maintenance and cleaning of both the basket transport device and the cleaning device. Furthermore, a conventional basket carrier can also be inserted into the cleaning device, e.g., while the basket transport device according to the invention is being maintained or cleaned.

[0018] Furthermore, the basket transport device according to the invention enables efficient transmission of torque to the drive magnetic rotor, for example, from the control magnetic rotor in the interior of the cleaning device. A particularly advantageous feature is that the magnetic coupling limits the torque that can be transmitted to the drive magnetic rotor, so that, for example, in the event of the basket transport device or the basket becoming jammed against other parts of the cleaning device, injury to the user and damage to the basket transport device and / or the cleaning device due to excessive force are avoided. This ensures the occupational safety of the dishwasher operator with regard to potential pinch points thanks to the adjustable maximum torque.

[0019] Furthermore, for example, the control magnetic rotor can be controlled by a controller, i.e. the controller can send control signals to the control magnetic rotor and thereby drive the control magnetic rotor, so that a torque acts on the control magnetic rotor. The torque can then be transferred to the drive magnetic rotor of the basket transport device. The electronics required to control the basket transport device can be integrated into the control magnetic rotor or connected to the control magnetic rotor located outside the cleaning area. Thus, this electronics does not have to be in contact with the drive magnetic rotor, which is located in the cleaning area. This prevents damage to the electronics by the cleaning fluid within the cleaning area, while ensuring efficient transmission of torque from the control magnetic rotor to the drive magnetic rotor.

[0020] Furthermore, the rack transport device according to the invention enables efficient control and automation of the rack transport by applying a torque to the drive magnetic rotor, which is then transmitted to the transport element via the coupling element. This enables efficient automation of the rack transport, particularly in the case of a pass-through dishwasher, thus increasing the washing performance, i.e., the number of racks washed per unit of time (e.g., per hour).

[0021] In summary, the basket transport device according to the invention enables automatic basket transport in a cleaning device that is efficient, safe, and user-friendly. Thus, user-friendliness is improved while taking the desired applications into account.

[0022] According to a preferred embodiment, the transport element comprises one or more drive rollers that are rotatably mounted relative to the frame about a respective drive roller rotation axis that runs perpendicular to the transport direction. When a torque, in particular a torque induced by a magnetic field, acts on the drive magnet rotor, the coupling element is configured to transmit the torque to the one or more drive rollers. This allows the one or more drive rollers to be rotated about their respective drive roller rotation axes. When the basket is supported by the frame, the one or more drive rollers each exert a force on the basket, in particular through their rotation about the respective drive roller rotation axes, and thereby move the basket along the transport direction.

[0023] When the basket is carried by the frame, the basket can rest on the one or more drive rollers. For example, the basket can have one or more openings, depressions or holes on its underside to support it, so that when the basket is inserted into the basket transport device or carried by the frame, a respective drive roller engages in a corresponding opening, depression or hole. This allows the basket to rest particularly securely on the drive rollers and to be moved by the drive rollers along the transport direction. The force which the one or more drive rollers exert on the basket can be caused in particular by static friction between the respective drive rollers and the basket, i.e. it can be a static friction force between the respective drive rollers and the basket.

[0024] Furthermore, the use of the basket transport device is not limited to specific baskets. The use of existing baskets is also permitted.

[0025] Alternatively or additionally, the transport element can comprise one or more conveyor belts, which extend in particular along the transport direction and on which the basket can rest. This allows for a particularly large contact surface for the basket on the conveyor belts and thus a high static friction force between the basket and the conveyor belts. This allows the basket to be moved particularly stably along the transport direction by the one or more conveyor belts.

[0026] The one or more drive rollers and / or one or more conveyor belts thus enable efficient, safe, and stable transport of the basket along the transport direction. Furthermore, these components can be manufactured particularly easily and cost-effectively.

[0027] The basket transport device can also comprise one or more support rollers that are not coupled to the drive magnetic rotor via the coupling element. If the basket is supported by the frame, the basket can rest on the one or more support rollers. The torque transmitted, for example, from the coupling element to the drive rollers can in this case be transferred to the one or more support rollers by the movement of the basket along the transport direction, in particular by the static friction between the basket and the one or more support rollers. This also allows the one or more support rollers to rotate about their respective axes of rotation.The support rollers further stabilize the movement of the basket along the transport direction, and furthermore, since the coupling element is coupled to the drive rollers but not to the support rollers, the coupling element is simplified, the number of components is reduced, and the manufacturing costs for the basket transport device are reduced.

[0028] According to a further preferred embodiment, the frame comprises a first rail running parallel to the transport direction, wherein the one or more drive rollers comprise one or more first drive rollers, each of which is attached to the first rail. This increases the stability of the basket transport device. Furthermore, the basket can rest against the first rail, for example, with a side surface or side edge, and be guided by the first rail along the transport direction, thus stabilizing the movement of the basket along the transport device.

[0029] According to a further preferred embodiment, the coupling element comprises a first partial coupling element configured to transmit a torque acting on the drive magnetic rotor to the one or more first drive rollers. The first partial coupling element can in particular be a first partial gear. Preferably, the first partial coupling element comprises: a magnetic rotor gear, which is fastened, for example, to the drive magnetic rotor via a shaft; one or more first drive roller gears, each of which is fastened, for example, to a first drive roller via a shaft; and a first drive roller chain that engages with the magnetic rotor gear and with the one or more first drive roller gears.This enables particularly efficient transmission of torque from the drive magnet rotor via the magnet rotor gear, the drive roller chain, and the one or more drive roller gears to the one or more first drive rollers. Furthermore, such a coupling element can be manufactured cost-effectively from standard components. Particularly preferably, the first partial coupling element further comprises a first chain guide, which prevents the first drive roller chain from skipping.

[0030] According to a further preferred embodiment, the frame comprises a second rail which runs parallel to the first rail and is spaced from the first rail, wherein the one or more drive rollers comprise one or more second drive rollers, each fastened to the second rail. The stability of the basket transport device is further increased by the second rail. Furthermore, the basket can, for example, rest against the first rail with a first side surface or side edge and against the second rail with a second side surface or side edge, which is opposite the first side surface or side edge, and the basket can be guided along the transport direction by the first and second rails, so that the movement of the basket is further stabilized.Furthermore, in an operating state of the cleaning device, a cleaning fluid can be sprayed upwards from an area below the frame between the two rails toward the basket to clean the items in the basket. Thus, the basket transport device can be easily incorporated into conventional cleaning devices. Finally, the two spaced-apart rails reduce the weight and material costs of the basket transport device.

[0031] Preferably, the coupling element comprises a shaft connected to a first drive roller and a second drive roller, and configured to transmit a torque applied to the first drive roller, which is connected to the shaft, to the second drive roller, which is connected to the shaft. This enables a particularly efficient transmission of torque from the first drive roller to the second drive roller. In particular, a second drive magnet rotor for transmitting the torque to the second drive roller is not required, thus reducing manufacturing costs.

[0032] Particularly preferably, the basket transport device comprises at least two second drive rollers, wherein the coupling element comprises a second partial coupling element configured to transmit a torque acting on the second drive roller connected to the shaft to each other second drive roller. The second partial coupling element can in particular be a second partial gear. In particular, the second partial coupling element can comprise: at least two second drive roller gears, each fastened to a second drive roller; and a second drive roller chain meshing with the at least two second drive roller gears. This enables a particularly efficient transmission of the torque from the drive magnet rotor via the first partial coupling element, the shaft, and the second partial coupling element to the one or more second drive rollers.Furthermore, such a coupling element can be manufactured cost-effectively from standard components. Particularly preferably, the second partial coupling element further comprises a second chain guide that prevents the second drive roller chain from skipping.

[0033] Analogous to the above description for the drive rollers, the one or more conveyor belts can also comprise one or more first conveyor belts and one or more second conveyor belts, each of which is attached to the first rail and the second rail, respectively. This also increases stability and enables efficient movement of the basket along the transport direction.

[0034] In a further preferred embodiment, the drive magnet rotor comprises a drive flange and a plurality of drive magnets arranged or fastened to the drive flange, each drive magnet having a magnet axis aligned parallel or antiparallel to the drive axis of rotation (i.e., the respective magnet axis points in the same or opposite direction as the drive axis of rotation). The drive flange can, for example, have a plurality of flat bores into which the respective drive magnets are inserted. Alternatively or additionally, the drive magnet rotor can comprise a drive housing in which the plurality of drive magnets are arranged.

[0035] In particular, the plurality of drive magnets may comprise a plurality of first drive magnets, the centers of which are each arranged on a first circle with a first radius, through the center of which the drive axis of rotation runs, wherein preferably the first drive magnets are arranged at regular intervals along the first circle, wherein particularly preferably the magnetic axes of the first drive magnets are aligned alternately parallel and antiparallel to the drive axis of rotation.

[0036] Furthermore, the plurality of drive magnets can comprise a plurality of second drive magnets, the centers of which are each arranged on a second circle with a second radius, through the center of which the drive axis of rotation runs, wherein the second radius is greater than the first radius, wherein preferably the second drive magnets are arranged at regular intervals along the second circle, wherein particularly preferably the magnetic axes of the second drive magnets are alternately aligned parallel and antiparallel to the drive axis of rotation, wherein even more preferably for each first drive magnet a corresponding second drive magnet is arranged such that a connecting line on which the center of the first drive magnet and the center of the corresponding second drive magnet lie intersects the drive axis of rotation.

[0037] In a particularly preferred embodiment, the drive magnet rotor comprises 6 first drive magnets and 12 second drive magnets as described above.

[0038] As already mentioned, the basket transport device according to the invention can, for example, be inserted into and removed from a receiving unit of a cleaning device. The cleaning device can comprise a control magnetic rotor that is mounted so as to be rotatable about a control rotation axis relative to the receiving unit. When the basket transport device is inserted into the receiving unit, a magnetic attraction force can act between the control magnetic rotor and the drive magnetic rotor, so that a torque acting on the control magnetic rotor is transferred to the drive magnetic rotor, at least when the torque is less than or equal to a maximum torque.In this case, the control magnet rotor can also comprise a control flange and a plurality of control magnets arranged or fastened to the control flange, each control magnet having a magnetic axis aligned parallel or antiparallel to the control axis of rotation (i.e., the respective magnetic axis points in the same direction or in the opposite direction to the drive axis of rotation). The control flange can, for example, have a plurality of flat bores into which the respective control magnets are inserted. Alternatively or additionally, the control magnet rotor can comprise a control housing in which the plurality of control magnets are arranged. When the basket transport device is inserted into the receiving unit, a magnetic attraction force can act between a respective control magnet and a corresponding drive magnet.Specifically, the magnetic axis of each control magnet can be identical to the magnetic axis of the corresponding drive magnet (at least as long as no torque acts on the control magnet rotor and the drive magnet rotor, so that the control magnet rotor and the drive magnet rotor are each in their rest position).

[0039] As an alternative to the control magnetic rotor as described above, an electrically generated and / or controlled magnetic field can also be used. In particular, the drive magnetic rotor can be driven by one or more electromagnets. By electrically controlling the one or more electromagnets, a rotating magnetic field can be generated, which induces a torque acting on the drive magnetic rotor, causing the drive magnetic rotor to rotate about the drive axis of rotation.

[0040] Furthermore, an electric motor and / or a generator can be used as an alternative to the drive magnetic rotor as described above. In particular, the rotation of the control magnetic rotor can generate a rotating magnetic field, which induces an alternating current or alternating voltage in the generator, by which the transport element is electrically driven. In particular, the alternating current or alternating voltage can be fed into an electric motor, which drives the drive rollers. This has the particular advantage that a mechanical redirection of the rotational movement of the drive magnetic rotor to the transport element or the first drive rollers, e.g., using the first drive roller chain, is not required.

[0041] The above-described features of the basket transport device according to the invention, which relate in particular to the drive magnets, each separately and in combination contribute to a particularly high maximum torque that can be transmitted (e.g., from the external control magnet rotor) to the drive magnet rotor. The maximum torque can, for example, be greater than or equal to 1 Nm, preferably greater than or equal to 1.5 Nm. Thus, the drive magnet rotor can be efficiently controlled, and as a result, a basket can be moved particularly stably and efficiently along the transport direction. Furthermore, the size of the drive magnet rotor (and correspondingly the external control magnet rotor) can be reduced, thus lowering costs.

[0042] These technical effects were demonstrated in a series of technical tests. In these tests, two coupling flanges (corresponding to the control flange and the drive flange) were each equipped with a plurality of magnets (corresponding to the control magnets and the drive magnets, respectively). Both flanges were then placed on a sheet metal (corresponding to a side wall of the cleaning area) so that they attract each other and align with each other. Various arrangements of the control magnets and the drive magnets on the respective coupling flanges were tested. In particular, the preferred arrangement described above was tested, in which the magnetic axes of the first drive magnets are alternately aligned parallel and antiparallel to the drive rotation axis and the magnetic axes of the second drive magnets are alternately aligned parallel and antiparallel to the drive rotation axis.In a comparative example, however, all drive magnets had a uniform magnetic axis aligned parallel to the drive rotation axis. The arrangements of the control magnets were also varied. For each of the tested arrangements, a torque was transmitted to the control magnet rotor (e.g., by applying a torque wrench to a key width of the control flange and manually generating a torque). The torque was gradually increased until the coupling between the control magnet rotor and the drive magnet rotor slipped. In this way, the maximum value of the torque that could be transmitted from the control magnet rotor to the drive magnet rotor was compared for the various arrangements of the control and drive magnets.The result of these tests was that the maximum torque that can be transmitted from the control magnet rotor to the drive magnet rotor is particularly high in the preferred arrangement of the drive and control magnets described above. In particular, the maximum torque was greater in this preferred arrangement than in the above-mentioned comparative example.

[0043] In a preferred embodiment, at least one or all of the drive magnets contain hard ferrite or consist or consist essentially of hard ferrite. This makes the magnets acid and alkali resistant and therefore suitable for use in cleaning applications where the magnets come into contact with, for example, the rinsing solution.

[0044] According to the present invention, a cleaning device, e.g., a dishwasher, in particular a pass-through dishwasher or a hood-type dishwasher, comprises a receiving unit for receiving the basket transport device according to the invention in the receiving unit and for removing or removing the basket transport device from the receiving unit, and a control magnetic rotor that is rotatably mounted relative to the receiving unit about a control rotation axis. The receiving unit can, for example, be an interior of the cleaning device or a unit arranged or fastened in the interior. The basket transport device can, in particular, be inserted into the receiving unit such that the drive rotation axis and the control rotation axis are identical.When the basket transport device is inserted into the receiving unit, a magnetic attraction force acts between the control magnetic rotor and the drive magnetic rotor, so that a torque acting on the control magnetic rotor is transferred to the drive magnetic rotor, at least when the torque is less than or equal to a maximum torque. The control magnetic rotor and the drive magnetic rotor can thus form a magnetic coupling.

[0045] As described in connection with the basket transport device according to the invention, for similar reasons, the cleaning device according to the invention enables automatic basket transport that is efficient, safe, and user-friendly. Thus, user-friendliness is improved while taking the desired applications into account.

[0046] In particular, the basket transport device can be secured or removably secured in the receiving unit by the magnetic attraction between the control magnetic rotor and the drive magnetic rotor. In this case, the attachment can be released again by applying a force to the basket transport device that is opposite to and at least equal to the magnetic attraction force, in order to remove the basket transport device from the receiving unit. This allows the basket transport device to be inserted into and removed from the cleaning device particularly easily.

[0047] According to a preferred embodiment, the control magnet rotor comprises a control flange and a plurality of control magnets arranged or fastened to the control flange, each control magnet having a magnetic axis oriented parallel or antiparallel to the control axis of rotation (i.e., the respective magnetic axis points in the same direction or in the opposite direction to the drive axis of rotation). The control flange can, for example, have a plurality of flat bores into which the respective control magnets are inserted. When the basket transport device is inserted into the receiving unit, a magnetic force of attraction acts between a respective control magnet and a corresponding drive magnet.In particular, the magnetic axis of each control magnet may be identical to the magnetic axis of the corresponding drive magnet (at least in a state in which no torque acts on the drive magnet rotor and the control magnet rotor).

[0048] As described above, this has the advantage of a particularly high maximum torque that can be transmitted from the control magnet rotor to the drive magnet rotor. This allows the drive magnet rotor to be controlled particularly efficiently, allowing a basket to be moved particularly stably and efficiently along the transport direction. Furthermore, the size of the control magnet rotor and the drive magnet rotor can be reduced, thus lowering costs.

[0049] Preferably, at least one or all of the control magnets each contain neodymium or consist of or consist essentially of neodymium. For example, the control magnets can each be neodymium-FE-boron magnets. This makes the magnets particularly strong, and further increases the maximum torque that can be transmitted from the control magnet rotor to the drive magnet rotor. Since the control magnet rotor can be located outside a cleaning area of ​​the cleaning device, as described below, the control magnets do not necessarily have to be acid- or alkali-resistant.

[0050] In a further preferred embodiment, the cleaning device comprises a cleaning area, e.g., a rinsing area, a rinsing zone, a rinsing chamber, or a rinsing tank, wherein the cleaning area is delimited by a side wall. In this case, the control magnetic rotor can be arranged outside the cleaning area, and, when the basket transport device is inserted into the receiving unit, the drive magnetic rotor can be arranged within the cleaning area, such that the drive magnetic rotor and the control magnetic rotor are hydraulically separated from one another by the side wall. This has the advantage that the electronics required to control the basket transport device can be integrated into the control magnetic rotor or connected to the control magnetic rotor located outside the cleaning area. In particular, the electronics do not have to be in contact with the drive magnetic rotor, which is located in the cleaning area.This prevents damage to the electronics by the cleaning fluid within the cleaning area, while at the same time ensuring efficient transmission of torque from the control magnet rotor to the drive magnet rotor.

[0051] In particular, the control magnetic rotor (or the control flange) can bear against an outer surface of the side wall, preferably such that the control axis of rotation is perpendicular to the side wall; furthermore, when the basket transport device is inserted into the receiving unit, the drive magnetic rotor (or the drive flange) can bear against an inner surface of the side wall opposite the outer surface, preferably such that the drive axis of rotation is perpendicular to the side wall, wherein the control axis of rotation and the drive axis of rotation are particularly preferably identical.

[0052] The coupling flanges (i.e., the control flange and / or the drive flange) can be made of plastic and have a coefficient of sliding friction between 0.1 and 0.2. In particular, the coupling flanges can be made of PE or POM. This gives the flanges good sliding properties and allows them to slide along the outer or inner surface of the side wall. This reduces friction loss due to the rotation of the control or drive magnet rotor relative to the side wall. Furthermore, such flanges have good chemical resistance and can therefore also be used in cleaning areas, where they come into contact with, for example, rinsing solutions.

[0053] Furthermore, the control magnet rotor can comprise one or more control sheets, each control sheet connecting two or more control magnets at their respective end sections, which are opposite the side wall and point out of the cleaning area. Furthermore, the drive magnet rotor can comprise one or more drive sheets, each drive sheet connecting two or more drive magnets at their respective end sections, which are opposite the side wall and point into the cleaning area. The sheets can, for example, each be made of 1.4310 Cr-Ni or contain this material. The sheets can amplify the magnetic field of the respective drive or control magnets, so that the maximum torque that can be transmitted from the control magnet rotor to the drive magnet rotor is further increased.

[0054] In a preferred embodiment, only control plates are used to connect the control magnets, but no drive plates are used to connect the drive magnets. This embodiment is particularly advantageous when there is insufficient space for the drive plates due to tight installation spaces in the cleaning area (side of the drive magnet rotor).

[0055] In a further preferred embodiment, the cleaning device comprises a body and a hood, which is arranged to be movable back and forth relative to the body between an open position and a closed position. The body can in particular comprise the receiving unit, the control magnetic rotor and / or the side wall. When the hood is arranged in the closed position, the hood, in particular in combination with the side wall described above, can at least partially delimit and / or at least partially enclose the cleaning area. In particular, the hood can comprise a wall opposite the side wall and two walls perpendicular to the side wall, as well as a cover wall perpendicular to these four walls, which is arranged, for example, opposite the receiving unit. When the hood is arranged in the open position, the basket transport device can be inserted into the receiving unit and removed from the receiving unit.When the hood is arranged in the open position and the basket transport device is inserted into the receiving unit, the cleaning device can be configured such that the transport element moves a basket carried by the frame of the basket transport device along the transport direction out of the cleaning area.

[0056] When the hood is moved into the open position after a cleaning cycle is completed, the basket transport device can move the basket containing the cleaned items along the transport direction out of the cleaning area. This empties the cleaning area so that another basket containing uncleaned items can then be brought into the cleaning area. This allows the basket to be automatically moved out of the cleaning area after the cleaning cycle is completed, unlike conventional devices where a user must remove the basket from the cleaning cycle. This enables efficient automation of the basket transport and increases the cleaning performance, i.e., the number of baskets cleaned per hour.

[0057] In a further preferred embodiment, the cleaning device is configured such that, when the hood is moved from the closed to the open state, the cleaning device transmits a torque to the control magnetic rotor. This torque can then be transmitted, as described above, via the drive magnetic rotor and the coupling element to the transport element in order to move the basket carried by the frame along the transport direction out of the cleaning area. Thus, the basket can be automatically moved out of the cleaning area when the hood is opened. This achieves efficient automation of the basket transport and further increases the cleaning performance.

[0058] Furthermore, the cleaning device can comprise an exit table arranged relative to the cleaning area in the transport direction and designed to support a basket moved out of the cleaning area by the basket transport device or the transport element. Preferably, the exit table comprises an exit transport element for moving the basket relative to the exit table along the transport direction. Particularly preferably, the transport element of the basket transport device and the exit transport element are coupled to one another such that, when the transport element moves a basket carried by the frame out of the cleaning area, the exit transport element moves the basket carried by the exit table further along the transport direction.

[0059] The output transport element can have the same or similar features as the transport element of the basket transport device, in particular can comprise one or more drive rollers and / or one or more conveyor belts, which can be fastened, for example, to one or two parallel rails of the output table. The transport element of the basket transport device and the output transport element can be mechanically or electrically coupled or connected to one another, for example such that the drive rollers of the transport element and the drive rollers of the output transport element rotate simultaneously or sequentially and / or at the same speed or at coordinated speeds. In particular, the cleaning device can be configured to transmit torque to the transport element and the output transport element simultaneously or sequentially.Alternatively, the transport element and the output transport element may be controlled separately, but a torque transmitted to the transport element and a torque transmitted to the output transport element may be equal or matched to each other.

[0060] The cleaning device can further comprise an exit sensor for detecting that (e.g., after a cleaning process has been performed) the hood is moved into the open position and / or a basket is moved out of the cleaning area. Based on this detection by the exit sensor, the cleaning device can control the exit transport element to move the basket further along the transport direction. This allows the basket to be efficiently moved out of the cleaning area and further along the exit table along the transport direction, e.g., into another work area of ​​the cleaning device. This achieves efficient automation of the basket transport and further increases cleaning performance.

[0061] Furthermore, the cleaning device can comprise an input table arranged relative to the cleaning area in a direction opposite to the transport direction and designed to support the basket. Preferably, the input table comprises an input transport element for moving the basket along the transport direction into the cleaning area. The input transport element can have the same or similar features as the transport element of the basket transport device, in particular, one or more drive rollers and / or one or more conveyor belts, which can be attached, for example, to one or two parallel rails of the input table.The input transport element and the transport element of the basket transport device can be mechanically or electrically coupled or connected to one another, for example, such that the drive rollers of the input transport element and the drive rollers of the transport element rotate simultaneously or sequentially and / or at the same speed or at coordinated speeds. In particular, the cleaning device can be configured to transmit a torque to the input transport element and the transport element simultaneously or sequentially. Alternatively, the input transport element and the transport element can be controlled separately, but a torque transmitted to the input transport element and a torque transmitted to the transport element can be the same or coordinated.

[0062] The cleaning device can further comprise an input sensor for detecting that the input transport element is moving the basket (e.g., with items not yet cleaned) toward the cleaning area. Based on this detection by the input sensor, the cleaning device can, for example, move the hood to the open position and / or control the basket transport device to move the basket into the cleaning area and start a cleaning process. This achieves efficient automation of the basket transport and further increases cleaning performance.

[0063] According to the present invention, a cleaning system comprises the above-described basket transport device and the above-described cleaning device. This cleaning system enables automatic basket transport that is efficient, safe, and user-friendly, thus improving user experience while taking the desired applications into account.

[0064] These and other features and advantages of the invention will become apparent from the accompanying drawings, which show a particularly advantageous embodiment. They show:

[0065] Fig. 1 is a perspective view of an embodiment of the basket transport device according to the invention; Fig. 2 is a perspective view of an embodiment of the cleaning device according to the invention, into which a basket transport device according to the invention is inserted;

[0066] Fig. 3A is a perspective view of an embodiment of the cleaning device according to the invention with a basket that can be moved by the basket transport device;

[0067] Fig. 3B the cleaning device from Fig. 3A, but without the basket;

[0068] Fig. 4 is a rear view of the cleaning device of Fig. 3A;

[0069] Fig. 5A is a cross-sectional view of the cleaning device of Fig. 3A along the cross section V in Fig. 4;

[0070] Fig. 5B is an enlargement of section B of Fig. 5A;

[0071] Fig. 6 shows a basket which can be transported by the basket transport device according to the invention;

[0072] Fig. 7 is a cross-sectional view of the control magnetic rotor and the drive magnetic rotor according to an embodiment of the basket transport device according to the invention;

[0073] Fig. 8 is a perspective view of the drive magnet rotor and the control magnet rotor according to a preferred embodiment of the basket transport device according to the invention;

[0074] Fig. 9A is a plan view of the drive magnet rotor of Fig. 8; and

[0075] Fig. 9B is a top view of the control magnet rotor of Fig. 8.

[0076] Fig. 1 shows a perspective view of an embodiment of the basket transport device 1 according to the invention for a cleaning device 2. The basket transport device 1 comprises a frame 11, a transport element or a drive train, a drive magnetic rotor 13 and a coupling element.

[0077] The frame 11 comprises a first rail 111 running parallel to the transport direction, which corresponds to the positive x-direction, and a second rail 112 running parallel to the first rail 111 and spaced apart from the first rail 111 in the y-direction. The x-axis, y-axis, and z-axis form an orthogonal coordinate system. The frame 11 serves to support a basket 3 for items to be cleaned in the cleaning device 2. The cleaning device 2 can be a dishwasher (see Figures 2 to 5B), and the basket 3 can be a dish basket for dishes to be washed in the dishwasher (see Figure 6).

[0078] The transport element or drive train serves to move the basket 3 relative to the frame 11 along the transport direction. For example, the cleaning device 2 can have a cleaning area 23 (see, for example, Fig. 2), and the transport element can move a basket 3 carried by the frame 11 in the cleaning area 23 out of the cleaning area 23 along the transport direction after a cleaning process for cleaning the items to be cleaned has been carried out. In this embodiment, the transport element comprises three first drive rollers 121a, each fastened to the first rail 111, and three second drive rollers 121b, each fastened to the second rail 112. The first drive rollers 121a and the second drive rollers 121b are rotatably mounted relative to the frame 11 about a respective drive roller rotation axis that runs perpendicular to the transport direction.The drive roller rotation axes each point in the positive y-direction.

[0079] The drive magnet rotor 13 is mounted relative to the frame 11 for rotation about a drive axis of rotation that runs perpendicular to the transport direction. The drive axis of rotation points in the positive y-direction.

[0080] In this embodiment, the coupling element is a gear mechanism that is coupled to the drive magnetic rotor 13 and to the drive rollers 121 (i.e., to the first drive rollers 121a and the second drive rollers 121b). The gear mechanism can have any gear ratio; however, the speed does not have to be translated by the gear mechanism, i.e., an input speed of the drive magnetic rotor 13 can be equal to an output speed of the transport element or the drive rollers 121. When a torque acts on the drive magnetic rotor 13, the gear mechanism is configured to transmit the torque to the drive rollers 121. This causes the drive rollers 121 to rotate about their respective drive roller rotational axes.When the basket 3 is supported by the frame 11, the drive rollers 121 each exert a force on the basket 3 by rotating about the respective drive roller rotation axes and thereby move the basket 3 along the transport direction.

[0081] More specifically, the transmission includes a first sub-transmission 141 configured to transmit torque acting on the drive magnet rotor 13 to the first drive rollers 121a. The first sub-transmission 141 includes: a magnet rotor gear 1411 attached to the drive magnet rotor 13 via a shaft; three first drive roller gears 1412, each attached to a corresponding first drive roller 121a via a shaft; and a first drive roller chain 1413 meshing with the magnet rotor gear 1411 and the three first drive roller gears 1412.

[0082] Furthermore, the transmission comprises a shaft 143 which is connected to a first drive roller 121a (first drive roller on the far left in Fig. 1) and to a second drive roller 121b (second drive roller on the far left in Fig. 1) and is configured to transmit a torque acting on the first drive roller 121a, which is connected to the shaft 143, to the second drive roller 121b, which is connected to the shaft 143.

[0083] The transmission further includes a second sub-transmission 142 (not visible in Fig. 1) configured to transmit torque acting on the second drive roller 121b, which is connected to the shaft 143, to each other second drive roller 121b. Specifically, the second sub-transmission includes: three second drive roller gears, each attached to a corresponding second drive roller 121b; and a second drive roller chain meshing with the three drive roller gears.

[0084] Thus, when torque acts on the drive magnet rotor 13, the torque is first transmitted to the magnet rotor gear 1411, which is attached to the drive magnet rotor 13. The magnet rotor gear 1411 drives the first drive roller chain 1413. As a result, the torque is transmitted to the first drive roller gears 1412 and thus to the first drive rollers 121a, which are attached to the first drive roller gears 1412. The shaft 143 then transmits the torque from the first drive roller 121a, which is located on the leftmost side in Fig. 1, to the second drive roller 121b, which is located on the leftmost side in Fig. 1. The torque is then transmitted via the second drive roller gears and the second drive roller chain to the remaining two second drive rollers 121b (located centrally and on the right in Fig. 1).Thus, the torque is transmitted to all first and second drive rollers 121a, 121b, which then rotate about their respective axes of rotation. Due to this rotation, the drive rollers 121 exert a force on the basket 3, which moves the basket 3 along the transport direction.

[0085] The two outer drive rollers 121a, 121b (e.g., the two drive rollers 121a, 121b arranged on the far right of the first and second rails 111, 112 in Fig. 1) can be floatingly mounted on a sheet metal and can be used to tension the respective drive roller chains 1413. The first and second slider 15 or the first and second chain guide 15 on the first and second rails 111, 112, respectively, also prevent the first and second drive roller chains 1413 from slipping or skipping. In this embodiment, the basket transport device 1 also comprises support rollers 122, more precisely two first support rollers 122 fastened to the first rail 111 and two second support rollers 122 fastened to the second rail 112. In contrast to the drive rollers 121, the support rollers 122 are not coupled to the drive magnet rotor 13 via the gear.However, when the basket 3 is supported by the frame 11, the basket 3 rests on the support rollers 122. The torque transmitted from the gearbox to the drive rollers 121 is in this case transmitted to the support rollers 122 by the movement of the basket 3 along the transport direction, in particular by the static friction between the basket 3 and the support rollers 122. This also causes the support rollers 122 to rotate about their respective axes of rotation.

[0086] Fig. 2 shows a perspective view of an embodiment of the cleaning device 2 according to the invention, into which a basket transport device 1 according to the invention is inserted. The cleaning device 2 in this embodiment is a dishwasher, more precisely a pass-through or hood-type dishwasher. The cleaning device 2 comprises a receiving unit 21 for receiving the basket transport device 1 in the receiving unit 21 and for removing or removing the basket transport device 1 from the receiving unit 21. When the basket transport device 1 is inserted into the receiving unit 21, as shown in Fig. 2, a cleaning liquid can be sprayed upwards (in the direction of the positive z-axis) from an area below the frame 11 of the basket transport device 1 between the two rails 111, 112 in order to clean the items to be cleaned in the basket 3 resting on the frame 11.

[0087] The cleaning device 2 includes a control magnetic rotor 22 (not visible in Fig. 2; however, see Figs. 5A, 5B, 7, 8, 9A, and 9B) which is mounted rotatably relative to the receiving unit 21 about a control rotation axis. When the basket transport device 1 is inserted into the receiving unit 21, the drive rotation axis and the control rotation axis are identical in this embodiment and each point in the positive y-direction. Furthermore, when the basket transport device 1 is inserted into the receiving unit 21, a magnetic attraction force acts between the control magnetic rotor 22 and the drive magnetic rotor 13 (also not visible in Fig. 2), so that a torque acting on the control magnetic rotor 22 is transferred to the drive magnetic rotor 13, at least when the torque is less than or equal to a maximum torque. The control magnet rotor 22 and the drive magnet rotor 13 thus form a magnetic coupling.

[0088] Furthermore, the cleaning device 2 comprises a cleaning area 23, which is delimited by a side wall 24 (and by the hood 26, provided the latter is in the closed position, see below). The control magnetic rotor 22 is arranged outside the cleaning area 23. When the basket transport device 1 is inserted into the receiving unit 21, however, the drive magnetic rotor 13 is arranged within the cleaning area 23, so that the drive magnetic rotor 13 and the control magnetic rotor 22 are hydraulically separated from each other by the side wall 24.

[0089] The cleaning device 2 further comprises a body 25 and a hood 26, which is arranged to be movable back and forth relative to the body 25 between an open position and a closed position. The body 25 comprises, in particular, the receiving unit 21, the control magnetic rotor 22, and the side wall 24. When the hood 26 is arranged in the closed position, the hood 26, particularly in combination with the side wall 24 described above, delimits the cleaning area 23. The hood 26 comprises a wall opposite the side wall 24 (which is parallel to the xz plane) (which is thus also parallel to the xz plane and spaced from the side wall 24 in the y direction) and two walls perpendicular to the side wall 24 (each parallel to the yz plane), as well as a cover wall perpendicular to these four walls (which is parallel to the xy plane).When the hood 26 is arranged in the open position, the basket transport device 1 can be inserted into the receiving unit 21 and removed from the receiving unit 21. When the hood 26 is arranged in the open position and the basket transport device 1 is inserted into the receiving unit 21, the cleaning device 2 is configured such that the transport element moves a basket 3 carried by the frame 11 of the basket transport device 1 along the transport direction out of the cleaning area 23.

[0090] When the hood 26 is moved into the open position after completion of a cleaning process, the basket transport device 1 can move the basket 3 with the cleaned items along the transport direction out of the cleaning area 23. This empties the cleaning area 23, so that another basket with items not yet cleaned can then be brought into the cleaning area 23. Thus, after completion of the cleaning process, the basket 3 can be automatically moved out of the cleaning area 23 by the basket transport device 1.

[0091] Fig. 3A shows a perspective view of an embodiment of the cleaning device 2 according to the invention with a basket 3 that can be moved by the basket transport device 1. In Fig. 3A, the same components of the cleaning device 2 as in Fig. 2 can be seen. Furthermore, the cleaning device 2 comprises an exit table 28, which is arranged relative to the cleaning area 23 in the transport direction (ie in the positive x-direction) and is designed to support a basket 3 moved out of the cleaning area 23 by the basket transport device 1. The exit table 28 further comprises an exit transport element 281, which comprises one or more drive rollers (partially concealed by the basket 3 in Fig. 3A, see also Fig. 3B), for moving the basket 3 relative to the exit table 28 along the transport direction.When the transport element of the basket transport device 1 moves a basket 3 carried by the frame 11 out of the cleaning area 23, the exit transport element 281 can further move the basket 3 carried by the exit table 28 along the transport direction. Thus, after the cleaning process is completed, the basket 3 can be automatically moved out of the cleaning area 23 by the basket transport device 1 in conjunction with the exit transport element 281 of the exit table 28.

[0092] The cleaning device 2 further comprises an input table 29, which is arranged relative to the cleaning area 23 in a direction opposite to the transport direction (i.e., in the negative x-direction) and is designed to support the basket 3. The input table 29 further comprises an input transport element 291, which comprises one or more drive rollers, for moving the basket 3 along the transport direction into the cleaning area 23. Thus, before the start of the cleaning process, the basket 3 can be automatically moved into the cleaning area 23 by the basket transport device 1 in conjunction with the input transport element 291 of the input table 29.

[0093] Fig. 3B shows the cleaning device from Fig. 3A, but without the basket 3. In this illustration, in particular a shaft or drive roller as a component of the output transport element 281 and a shaft or drive roller as a component of the input transport element 291 can be seen.

[0094] Fig. 4 shows a rear view of the cleaning device from Fig. 3A (viewed along the negative y-axis). This illustration particularly shows the body 25, the hood 26, the output transport element 28, and the input transport element 29.

[0095] Fig. 5A shows a cross-sectional view of the cleaning device along cross-section V in Fig. 4 (cross-sectional area parallel to the yz plane). This illustration particularly shows the cleaning area 23, the side wall 24, the body 25, and the hood 26.

[0096] Fig. 5B shows an enlargement of section B from Fig. 5A. In this illustration, the drive magnetic rotor 13 and the control magnetic rotor 22 can be seen. These are described in more detail below (see Figs. 7, 8, 9A and 9B). Fig. 6 shows a basket 3, in particular a dish basket, which can be transported by the basket transport device 1 according to the invention. The basket 3 has a plurality of openings or depressions or holes on its underside (the side of the basket 3 visible in Fig. 6, which lies parallel to the xy plane and points in the negative z direction). When the basket 3 is inserted into the basket transport device 1 and is carried by the frame 11, the basket 3 can rest on the drive rollers 121, so that each drive roller 121 engages in a corresponding opening or depression or hole in the basket 3. Thus, the basket 3 can be moved by the drive rollers 121 along the transport direction.The force exerted by the drive rollers 121 on the basket 3 is caused by static friction between the drive rollers 121 and the basket 3.

[0097] Fig. 7 shows a cross-sectional view of the control magnetic rotor 22 and the drive magnetic rotor 13 according to an embodiment of the basket transport device 1 according to the invention. When the basket transport device 1 is inserted into the cleaning device 2, the drive magnetic rotor 13 (right side of Fig. 7) is located within the cleaning area 23 of the cleaning device 2, e.g., within the washing chamber of the dishwasher, while the control magnetic rotor 22 (left side of Fig. 7) is located outside the cleaning area 23, e.g., in an interior space or service room or undercarriage of the cleaning device 2. The drive magnetic rotor 13 and the control magnetic rotor 22 are hydraulically separated from one another by the side wall 24 of the cleaning area 23.

[0098] In particular, the control magnetic rotor 22 can bear against an outer surface of the side wall 24 (i.e., in Fig. 7, against the surface of the side wall 24 facing in the positive y-direction), in particular such that the control axis of rotation is perpendicular to the side wall 24; furthermore, when the basket transport device 1 is inserted into the receiving unit 21, the drive magnetic rotor 13 can bear against an inner surface of the side wall 24 opposite the outer surface (i.e., in Fig. 7, against the surface of the side wall 24 facing in the negative y-direction), in particular such that the drive axis of rotation is perpendicular to the side wall 24. As can be seen in Fig. 7, the control axis of rotation and the drive axis of rotation are identical and parallel to the y-direction.

[0099] The drive magnet rotor 13 comprises a drive flange 131 and / or a drive housing 131 and a plurality of drive magnets 132 arranged or fastened on the drive flange 131 and / or in the drive housing 131, wherein each drive magnet 132 has a magnet axis aligned parallel or antiparallel to the drive rotation axis (i.e., the respective magnet axis points in the positive or negative y-direction). In this embodiment, the drive flange 131 has a plurality of flat bores into which the respective drive magnets are inserted.

[0100] The control magnet rotor 22 comprises a control flange 221 and / or a control housing 221 and a plurality of control magnets 222 arranged or fastened on the control flange 221 and / or in the control housing 221, wherein each control magnet 222 has a magnetic axis aligned parallel or antiparallel to the control axis of rotation (i.e., the respective magnetic axis points in the positive or negative y-direction). In this embodiment, the control flange 221 has a plurality of flat bores into which the respective control magnets are inserted.

[0101] The magnetic axis of each control magnet 222 is identical to the magnetic axis of a corresponding drive magnet 132 (at least as long as no torque acts on the control magnet rotor 22 and the drive magnet rotor 13, so that the control magnet rotor 22 and the drive magnet rotor 13 are each in their rest position). When the basket transport device 1 is inserted into the receiving unit 21, a magnetic attraction force acts between each control magnet 222 and the corresponding drive magnet 132. This results in the total magnetic attraction force between the control magnet rotor 22 and the drive magnet rotor 13.

[0102] Fig. 8 shows a perspective view of the drive magnetic rotor 13 and the control magnetic rotor 22 according to a preferred embodiment of the basket transport device 1 according to the invention. Fig. 9A shows a plan view of the drive magnetic rotor 13 from Fig. 8. Fig. 9B shows a plan view of the control magnetic rotor 22 from Fig. 8.

[0103] The plurality of drive magnets 132 comprises a plurality of first drive magnets 132a, the centers of which are each arranged on a first circle 133a with a first radius, through whose center the drive axis of rotation runs. The first drive magnets 132a are arranged at regular intervals along the first circle 133a. The magnetic axes of the first drive magnets 132a are alternately aligned parallel and antiparallel to the drive axis of rotation. Furthermore, the plurality of drive magnets 132 comprises a plurality of second drive magnets 132b, the centers of which are each arranged on a second circle 133b with a second radius, through whose center the drive axis of rotation runs, wherein the second radius is larger than the first radius. The second drive magnets 132b are arranged at regular intervals along the second circle 133b.The magnetic axes of the second drive magnets 132b are alternately aligned parallel and antiparallel to the drive rotation axis. For each first drive magnet 132a, a corresponding second drive magnet 132 is arranged such that a connecting line on which the center of the first drive magnet 132a and the center of the corresponding second drive magnet 132b lie intersects the drive rotation axis. In this embodiment, the drive magnet rotor 13 comprises 6 first drive magnets 132a and 12 second drive magnets 132b as described above. As can be seen in Fig. 8 and in Figs. 9A-9B, the magnetic axis of each control magnet 222 is identical to the magnetic axis of a corresponding drive magnet 132 (at least in a state in which no torque acts on the drive magnet rotor 13 and the control magnet rotor 22).

[0104] The drive magnets 132 contain, consist, or consist essentially of hard ferrite. This makes the magnets acid- and alkali-resistant and can therefore be used within the cleaning area 23, where the magnets come into contact with, for example, the rinsing solution. However, since the control magnet rotor 22 is located outside the cleaning area 23 of the cleaning device 2, the control magnets 222 do not need to be acid- or alkali-resistant. The control magnets 222 contain, consist, or consist essentially of neodymium. This makes the magnets particularly strong, and thus increases the maximum torque that can be transmitted from the control magnet rotor 22 to the drive magnet rotor 13.

[0105] List of reference symbols

[0106] I Basket transport device

[0107] II Frame

[0108] III First rail

[0109] 112 Second rail

[0110] 121 Drive roller

[0111] 121a First drive roller

[0112] 121b Second drive roller

[0113] 122 support roller

[0114] 13 Drive magnet rotor

[0115] 131 Drive flange

[0116] 132 drive magnet

[0117] 132a First drive magnet

[0118] 132b Second drive magnet

[0119] 133 a First Circle

[0120] 133b Second Circle

[0121] 141 First partial coupling element, first partial gear 1411 Magnetic rotor gear

[0122] 1412 First drive roller gears

[0123] 1413 First drive roller chain

[0124] 142 Second partial coupling element, second partial transmission

[0125] 143 Wave

[0126] 15 Sliding piece, chain guide

[0127] 2 cleaning device

[0128] 21 Recording unit

[0129] 22 Control magnet rotor

[0130] 221 control flange

[0131] 222 Control magnet

[0132] 23 Cleaning area

[0133] 24 side wall

[0134] 25 Corpus

[0135] 26 hood

[0136] 27 Control

[0137] 28 Exit table

[0138] 281 Output transport element

[0139] 29 Entrance table

[0140] 291 Input transport element

[0141] 3 basket

Claims

Claims 1. A basket transport device (1) for a cleaning device (2), the basket transport device (1) comprising: a frame (11) for supporting a basket (3) for items to be cleaned; a transport element for moving the basket (3) relative to the frame (11) along a transport direction; a drive magnetic rotor (13) which is rotatably mounted relative to the frame (11) about a drive rotation axis which is perpendicular to the transport direction; and a coupling element which is coupled to the drive magnetic rotor (13) and to the transport element, wherein, when a torque acts on the drive magnetic rotor (13), the coupling element is configured to transmit the torque to the transport element, such that, when the basket (3) is supported by the frame (11), the transport element exerts a force on the basket (3) and thereby moves the basket (3) along the transport direction.

2. Basket transport device (1) according to claim 1, wherein the transport element comprises one or more drive rollers (121) which are rotatably mounted relative to the frame (11) about a respective drive roller rotation axis which is perpendicular to the transport direction, wherein, when a torque acts on the drive magnetic rotor (13), the coupling element is configured to transmit the torque to the one or more drive rollers (121) such that, when the basket (3) is carried by the frame (11), the one or more drive rollers (121) each exert a force on the basket (3) and thereby move the basket (3) along the transport direction.

3. Basket transport device (1) according to claim 2, wherein the frame (11) comprises a first rail (111) which runs parallel to the transport direction, wherein the one or a plurality of drive rollers (121) comprise one or more first drive rollers (121a), each of which is fastened to the first rail (111).

4. Basket transport device (1) according to claim 3, wherein the coupling element comprises a first partial coupling element (141) configured to transmit a torque acting on the drive magnetic rotor (13) to the one or more first drive rollers (121a), wherein preferably the first partial coupling element (141) comprises: a magnetic rotor gear (1411) fastened to the drive magnetic rotor (13); one or more first drive roller gears (1412), each fastened to a first drive roller (121a); ​​and a first drive roller chain (1413) meshing with the magnetic rotor gear (1411) and with the one or more first drive roller gears (1412).

5. Basket transport device (1) according to claim 4, wherein the frame (11) comprises a second rail (112) which runs parallel to the first rail (111) and is spaced from the first rail (111), wherein the one or more drive rollers (121) comprise one or more second drive rollers (121b) which are each fastened to the second rail (112).

6. Basket transport device (1) according to claim 5, wherein the coupling element comprises a shaft (143) connected to a first drive roller (121a) and to a second drive roller (121b) and configured to transmit a torque acting on the first drive roller (121a) connected to the shaft (143) to the second drive roller (121b) connected to the shaft (143).

7. Basket transport device (1) according to claim 6, comprising at least two second drive rollers (121b), wherein the coupling element comprises a second partial coupling element (142) configured to transmit a torque acting on the second drive roller (121b) connected to the shaft (143) to each other second drive roller (121b), preferably wherein the second partial coupling element comprises: at least two second drive roller gears, each attached to a second drive roller (121b); and a second drive roller chain meshing with the at least two second drive roller gears.

8. Basket transport device (1) according to one of claims 1 to 7, wherein the drive magnet rotor (13) comprises a drive flange (131) and a plurality of drive magnets (132) which are fastened to the drive flange (131), wherein each drive magnet (132) has a magnet axis which is aligned parallel or antiparallel to the drive axis of rotation.

9. Basket transport device (1) according to claim 8, wherein the plurality of drive magnets (132) comprises a plurality of first drive magnets (132a), the centers of which are each arranged on a first circle (133a) with a first radius, through the center of which the drive axis of rotation runs, wherein preferably the first drive magnets (132a) are arranged at regular intervals along the first circle (133a), wherein particularly preferably the magnet axes of the first drive magnets (132a) are aligned alternately parallel and antiparallel to the drive axis of rotation. 10.Basket transport device (1) according to claim 9, wherein the plurality of drive magnets (132) comprises a plurality of second drive magnets (132b), the centers of which are each arranged on a second circle (133b) with a second radius, through the center of which the drive rotation axis runs, wherein the second radius is greater than the first radius, wherein preferably the second drive magnets (132b) are arranged at regular intervals along the second circle (133b), wherein particularly preferably the magnet axes of the second drive magnets (132b) are alternately aligned parallel and antiparallel to the drive rotation axis, wherein even more preferably for each first drive magnet (132a) a corresponding second drive magnet (132b) is arranged such that a connecting line on which the center of the first drive magnet (132a) and the center of the corresponding second drive magnet (132b) lie, the drive rotation axis cuts.

11. Basket transport device (1) according to claim 10, wherein the drive magnet rotor (13) comprises 6 first drive magnets (132a) and 12 second drive magnets (132b).

12. Basket transport device (1) according to one of claims 8 to 11, wherein the drive magnets (132) each contain hard ferrite.

13. Cleaning device (2) comprising: a receiving unit (21) for receiving the basket transport device (1) according to one of the preceding claims into the receiving unit (21) and for removing the basket transport device (1) from the receiving unit (21); and a control magnetic rotor (22) which is rotatably mounted relative to the receiving unit (21) about a control rotation axis; wherein, when the basket transport device (1) is inserted into the receiving unit (21), a magnetic attraction force acts between the control magnetic rotor (22) and the drive magnetic rotor (13), so that a torque acting on the control magnetic rotor (22) is transmitted to the drive magnetic rotor.

14. Cleaning device (2) according to claim 13, wherein the control magnet rotor (22) comprises a control flange (221) and a plurality of control magnets (222) which are fastened to the control flange (221), wherein each control magnet (222) has a magnetic axis which is aligned parallel or antiparallel to the control axis of rotation, wherein, when the basket transport device (1) is inserted into the receiving unit (21), a magnetic attraction force acts between a respective control magnet (222) and a corresponding drive magnet (132).

15. Cleaning device (2) according to claim 13 or 14, wherein the control magnets (222) each contain neodymium.

16. Cleaning device (2) according to one of claims 13 to 15, which comprises a cleaning area (23) which is delimited by a side wall (24), wherein the control magnetic rotor (22) is arranged outside the cleaning area (23), and wherein, when the basket transport device (1) is inserted into the receiving unit (21), the drive magnetic rotor (13) is arranged within the cleaning area (23) so that the drive magnetic rotor (13) and the control magnetic rotor (22) are hydraulically separated from one another by the side wall (24).

17. Cleaning device (2) according to claim 16, which comprises a body (25) and a hood (26) which is arranged to be movable back and forth relative to the body (25) between an open position and a closed position, wherein, when the hood (26) is arranged in the closed position, the hood (26) delimits the cleaning area (23), and wherein, when the hood (26) is arranged in the open position: the basket transport device (1) can be inserted into the receiving unit (21) and removed from the receiving unit (21), and, when the basket transport device (1) is inserted into the receiving unit (21), the transport element is configured to move a basket (3) carried by the frame (11) along the transport direction out of the cleaning area (23).

18. Cleaning device (2) according to claim 17, which is configured such that when the hood (26) is moved from the closed to the open state, the cleaning device (2) transmits a torque to the control magnetic rotor (22).

19. Cleaning device (2) according to claim 17 or 18, which comprises an exit table (28) which is arranged relative to the cleaning area (23) in the transport direction and is designed to support a basket (3) moved by the basket transport device (1) out of the cleaning area (23), wherein preferably the exit table (28) comprises an exit transport element (281) for moving the basket (3) relative to the exit table (28) along the transport direction, wherein particularly preferably the transport element of the basket transport device (1) and the exit transport element (281) are coupled to one another in such a way that when the transport element moves a basket (3) carried by the frame (11) out of the cleaning area (23), the exit transport element (281) moves the basket (3) carried by the exit table (28) further along the transport direction.

20. Cleaning device (2) according to one of claims 17 to 19, which comprises an input table (29) which is arranged relative to the cleaning area (23) in a direction opposite to the transport direction and is designed to support the basket (3), wherein preferably the input table (29) comprises an input transport element (291) for moving the basket (3) along the transport direction into the cleaning area (23).

21. Cleaning device (2) according to one of claims 13 to 20, wherein the cleaning device (2) is a pass-through dishwasher.

22. Cleaning system comprising the basket transport device (1) according to one of claims 1 to 12 and the cleaning device (2) according to one of claims 13 to 21.

Images