Floor-cleaning appliance, cleaning station for a floor-cleaning appliance, and combination of cleaning station and floor-cleaning appliance

Abstract

The invention presents a floor-cleaning appliance comprising a floor head (12), at least one cleaning roller (36), which is arranged on the floor head (12) and, during cleaning operation, rotates about an axis of rotation (54) in a driven manner, and also at least one cassette (42), a holding device (44), which is assigned to the at least one cassette (42) and holds the at least one cleaning roller (36) on the at least one cassette (42), and also a fixing device (46) for fixing the at least one cassette (42) on the floor head (12), wherein the at least one cassette (42) is removable from the floor head (12), wherein the at least one cleaning roller (36) is removable from the at least one cassette (42), when the at least one cassette (42) is fixed on the floor head (12) via the fixing device (46), and is removable from the floor head (12).

Description

[0001] Floor cleaning device, cleaning station for a floor cleaning device, and combination of cleaning station and floor cleaning device

[0002] The invention relates to a floor cleaning device comprising a floor head, at least one cleaning roller which is arranged on the floor head and rotates about a rotational axis in a cleaning operation, at least one cassette, a holding device which is associated with the at least one cassette and holds the at least one cleaning roller on the at least one cassette, and a fixing device for fixing the at least one cassette to the floor head, wherein the at least one cassette is removable from the floor head.

[0003] The invention further relates to a cleaning station for a floor cleaning device.

[0004] Furthermore, the invention relates to a combination of a cleaning station and a floor cleaning device.

[0005] WO 2024 / 170089 A1 discloses a floor cleaning machine comprising a base module and a cleaning module, wherein the cleaning module is detachably connected to the base module via a coupling device, and on the cleaning module are arranged at least one cleaning roller unit, a rotary bearing device for rotatably mounting the at least one cleaning roller unit, and a dirt fluid tank device. A support device for supporting the floor head against a floor to be cleaned is arranged on the base module.

[0006] DE 10 2010 017 211 A discloses a base station for a self-propelled floor cleaning device. DE 10 2015 104 244 A discloses a self-propelled floor care device suitable for use with two different floor care units and includes a device for determining the type of floor covering.

[0007] DE 10 2017 119 590 A discloses a soil cultivation device with a detection device for detecting the power consumption of an electric motor and a control device which compares the detected power consumption with a defined reference value.

[0008] DE 10 2010 000 577 Al discloses a brush device with an electric motor and one or more rollers driven by it, which are movably held in a vertical direction by means of a spring to act differently on a floor.

[0009] US patent 2017 / 0150859 Al reveals a cleaning head for a vacuum cleaner.

[0010] US patent 2020 / 0225673 Al discloses a method for obstacle detection for autonomous robots.

[0011] US 2017 / 0332859 Al discloses a cleaner with a cleaning module.

[0012] Cleaning stations are described in CN 117958671 A, CN 117958700 A, CN 117958696 A, CN 117958692 A and CN 118303802 A.

[0013] CN 117958666 A relates to a cleaning device comprising a first cleaning arrangement and a second cleaning arrangement, wherein the first cleaning arrangement is configured to perform a back-and-forth motion in one operating mode. The second cleaning arrangement is configured to rotate continuously in one operating mode. The unpublished German patent application No. 10 2024 109 736.1 of Alfred Kärcher SE & Co. KG, dated April 8, 2024, discloses a surface cleaning device comprising a cleaning head with a cleaning head body, at least one cleaning roller rotatable about an axis of rotation, a drive motor for the at least one cleaning roller, and at least one side cleaning tool rotatable and / or oscillatable about at least one axis of movement.The at least one side cleaning tool is coupled to the at least one cleaning roller via a gear mechanism, and the rotation of the at least one cleaning roller drives the movement of the at least one side cleaning tool.

[0014] The German patent application, which was also not pre-published,

[0015] Patent No. 10 2024 109 746.9 of Alfred Kärcher SE & Co. KG dated April 8, 2024 discloses a surface cleaning device with a cleaning head and a receptacle for a cassette for at least one cleaning roller, wherein at least one side cleaning tool is held on the cassette.

[0016] EP 3 453 302 B1 discloses a cleaning machine station for a cleaning machine, comprising a receiving chamber for a cleaning head of the cleaning machine and a discharge device for dirty fluid with one connection. The discharge device for dirty fluid includes a suction pump and / or the at least one connection of the discharge device for fluid-effective connection to the dirty fluid tank of the cleaning machine is at a lower gravitational potential than an associated drain connection of the dirty fluid tank when the cleaning machine is properly positioned and the cleaning machine is held by the cleaning machine station. The discharge device for dirty fluid has at least one connection for discharging dirty fluid from the cleaning machine station and / or includes a station dirty fluid tank.The CN 109316135 B, the CN 219089113 U and the CN 216020828 U reveal cleaning stations for pads.

[0017] DE 10 2021 006 683 Al discloses a cleaning system for a self-driving robotic vacuum cleaner for cleaning floor surfaces and with a cleaning station.

[0018] WO 2023 / 152082 A1 discloses a surface cleaning device comprising a cleaning head, at least one cleaning roller, and a drive motor with at least one drive shaft for the at least one cleaning roller, wherein the drive motor and the at least one drive shaft are arranged on the cleaning head, and wherein the at least one drive shaft rotates about a rotational axis during operation of the surface cleaning device. The at least one cassette is detachably positioned on the cleaning head with a holding device for the at least one cleaning roller.The holding device has at least two spaced-apart stops for the at least one cleaning roller, by which the at least one cleaning roller is detachably held on the at least one cassette when the at least one cassette is removed from the cleaning head, and when the at least one cassette is arranged on the cleaning head, the at least one cleaning roller is torque-effectively coupled to the at least one drive shaft.

[0019] The invention is based on the objective of providing a floor cleaning device of the type mentioned above, which has extensive cleaning modes.

[0020] This problem is solved in the aforementioned floor cleaning device according to the invention in that the at least one cleaning roller is removable from the at least one cassette when the at least one cassette is fixed to the floor head via the fixing device, and is removable from the floor head. In the solution according to the invention, it is possible to remove only the cleaning roller from the floor head, while the at least one cassette remains attached to the floor head.

[0021] This allows, for example, effective cleaning of the floor cleaning device itself (after cleaning a surface). For instance, at least one cleaning roller can be removed from the floor head for separate cleaning or replacement. This separate cleaning of the at least one cleaning roller can be done, for example, in a washing machine.

[0022] The remaining cassette can be cleaned with the floor head, for example at a cleaning station. As a rule, at least one cassette needs to be cleaned less frequently or less intensively than at least one cleaning roller.

[0023] Advantageously, it remains possible to remove at least one cassette, with at least one cleaning roller attached, from the floor head. This allows, for example, removal by an operator without having to touch the cleaning roller.

[0024] It is advantageous if the holding device includes a retaining element for the at least one cleaning roller, whereby, when the at least one cassette is fixed to the floor head, the at least one cleaning roller can be removed from the cassette or its removal can be enabled by a relative movement of the retaining element and the at least one cleaning roller. During operation of the floor cleaning device on a surface to be cleaned, the at least one retaining element holds the at least one cleaning roller in place. The relative movement of the at least one cleaning roller and the retaining element allows the cleaning roller to be removed from the cassette, or access to the at least one cleaning roller is enabled, so that the cleaning roller can again be removed from the floor head, even if the at least one cassette remains fixed to the floor head.

[0025] In particular, during cleaning operation of the floor cleaning device with at least one cleaning roller rotating around the axis of rotation, the at least one cleaning roller is held by the holding element on the holding device. The at least one holding element has a holding function for the at least one cleaning roller during cleaning operation of the floor cleaning device.

[0026] In a structurally advantageous embodiment, the holding element has a rotary bearing for the driven rotation of the at least one cleaning roller. This results in a structurally simple design of the floor cleaning device with the driven at least one cleaning roller.

[0027] From a design perspective, it is advantageous if the at least one retaining element is movably arranged relative to the at least one cassette. This allows the at least one cleaning roller to be easily released or removed so that it can be directly detached from the floor head, even if the at least one cassette remains attached to the floor head.

[0028] It is particularly advantageous if the retaining element is movable or removable from the floor head. Moving the retaining element releases at least one cleaning roller, allowing it to be removed from the floor head. The retaining element can remain attached to the floor head or be completely removable.

[0029] It is particularly advantageous if a receiving chute for the at least one cassette is arranged or formed on the base, with the receiving chute being closed on one side by an openable cover, and the retaining element being positioned in the area of ​​or on the cover. This results in a structurally simple design. The at least one cleaning roller can also be rotatably held between the retaining element and a counter element on the base by means of a clamping mechanism. Opening the cover provides easy access for removing the at least one cleaning roller.

[0030] It is particularly advantageous if a receiving chute for at least one cassette is arranged or formed on the base plate and if this receiving chute has an openable cover. This allows the at least one cleaning roller to be easily removed from the base plate. Furthermore, the at least one cassette can be easily removed. This provides downward access for the at least one cleaning roller to the surface to be cleaned. The receiving chute is closed laterally by the openable cover.

[0031] In one embodiment, a retaining element of the holding device is attached to the lid. This retaining element includes, in particular, a rotary bearing.

[0032] This allows at least one cleaning roller to be rotated on the floor head, despite the simple design. This results in a relatively large cleaning width for the floor cleaning device.

[0033] It can then be provided that the at least one cleaning roller can be removed from the at least one cassette, if the cassette is fixed to the base, by removing the lid. The at least one cleaning roller is then connected to the lid in such a way that removing the lid also removes the at least one cleaning roller from the at least one cassette and thus from the base.

[0034] Alternatively or additionally, it is possible that, with the lid open, at least one cleaning roller is accessible in such a way that it can be removed from at least one cassette, provided the cassette is fixed to the base unit. Opening the lid then provides the necessary access to remove the cleaning roller from the cassette and thus from the base unit.

[0035] In one embodiment, the retaining element is provided to be removable from the base. The retaining element can be a separate component or, for example, be attached to a removable cover for a receiving chute.

[0036] It is particularly advantageous if the retaining element is removable relative to the at least one cassette. The retaining element is essentially a component of the holding device and ensures that the at least one cleaning roller is held rotatably on the at least one cassette during cleaning operation. Its relative removableness allows the cleaning roller to be released for removal from the cassette. The retaining element can be fixed to the at least one cassette, to a cassette holder that holds the cassette, or to the floor head (outside the cassette or cassette holder). Combinations of these configurations are also possible.If the retaining element is attached to the at least one cassette or to a cassette holder, then the retaining element can move with the at least one cassette relative to the floor head, for example, during a cleaning process. It may be provided, for instance, that the at least one cassette is movably attached to the floor head via a movable cassette holder. In this context, reference is made to the unpublished German patent application No. 10 2024 103 726.1 dated February 9, 2024.

[0037] In one embodiment, the retaining element is a separate component from the cover of a receiving chute for the at least one cassette. It can then be removed from the base (and also from the cover). This results in a structurally simple design. The retaining element and the cover can be optimized separately. For example, the retaining element can then be assigned an additional function, such as a protective barrier for an operating unit on the at least one cassette.

[0038] It is advantageous if the retaining element, when fixed relative to the at least one cassette, covers an operating element for releasing the fixation of the at least one cassette to the base plate. For example, the at least one cassette is fixed to the base plate by a snap-fit ​​mechanism. By applying pressure to the cassette, it can be released from the base plate. If the retaining element is positioned relative to the cassette in such a way that no corresponding pressure force can be exerted on the cassette to release the fixation or via the snap-fit ​​mechanism, then a corresponding protective effect is provided. Unintentional release of the at least one cassette is then impossible if the retaining element is fixed accordingly. The at least one retaining element can be located on the at least one cassette itself, on a cassette holder for the at least one cassette, or on the base plate for this purpose.Combination forms are also possible, such as the holding element being fixed to both the cassette and the cassette holder.

[0039] It is particularly advantageous if, in addition to the individual removal of the at least one cleaning roller from the cassette when it is fixed to the floor head, the at least one cassette with the at least one cleaning roller attached to it is also removable from the floor head, and especially if the at least one cleaning roller is removed from the floor head. This provides at least two options for an operator to remove the at least one cleaning roller from the floor head. In one embodiment, it is provided that the at least one cleaning roller can be removed from the at least one cassette, when it is fixed to the floor head, in a removal direction that is parallel to the removal direction of the at least one cassette from the floor head.This results in a structurally simple design.

[0040] It is particularly advantageous if the removal direction of the at least one cleaning roller from the floor head is at least approximately parallel to the axis of rotation of the at least one cleaning roller. This allows the floor head to be implemented in a structurally simple manner.

[0041] It may also be provided that the at least one cleaning roller can be removed from the at least one cassette, when the latter is fixed to the floor head, by at least one of the following: the at least one cleaning roller can be removed via an underside of the floor head, the underside of which faces a mounting plane of the floor head on a surface to be cleaned; the at least one cleaning roller can be removed via the opening of a receiving chute for the at least one cleaning roller, the opening of which faces a mounting plane.

[0042] This allows, for example, at least one cleaning roller to be removed downwards at a cleaning station.

[0043] It is advantageous if the at least one cleaning roller can be removed from the at least one cassette, when the cassette is fixed to the floor head, by means of a pivoting motion. This results in easy removal of the at least one cleaning roller from the at least one cassette. It can be provided that the at least one cassette can be removed from the floor head in a removal direction parallel to the floor head's mounting plane. This results in a structurally simple design of the floor head.

[0044] Alternatively, it is also possible that at least one cassette can be removed from the base unit with a directional component perpendicular to a mounting plane of the base unit. For example, it can then be removed from the underside of the base unit.

[0045] It is advantageous if at least one cassette is held on the floor head by a cassette holder, with the cassette holder being particularly movable on the floor head. The cassette holder allows for easy fixation to the floor head. A movable cassette holder allows, for example, additional pressure to be exerted by the at least one cleaning roller onto the floor being cleaned. This can, for instance, compensate for wear on the bristles of the at least one cleaning roller or provide additional contact pressure during the cleaning process. This mobility can also be advantageous for cleaning the floor cleaning machine itself at a cleaning station.

[0046] It is advantageous if at least one of the following is provided: a drive motor for the at least one cleaning roller; a humidification device for supplying cleaning fluid to the at least one cleaning roller; a scraper device for removing dirt fluid from the at least one cleaning roller, which is arranged in particular on the at least one cassette; a tank device for dirt fluid, which is in particular removable and located on the bottom head; the at least one cleaning roller has a textile covering.

[0047] The moistening device allows at least one cleaning roller to be moistened with cleaning fluid from a suitable tank. This results in improved dirt removal on hard floors.

[0048] The scraper device allows cleaning fluid to be removed from at least one cleaning roller (during a cleaning cycle of the floor cleaning machine). The removed cleaning fluid can then be connected to a cleaning fluid tank.

[0049] It is advantageous if at least one cleaning roller has a textile covering, and especially microfiber covering. This allows for particularly effective cleaning of hard floors.

[0050] The floor cleaning device according to the invention is in particular designed to be self-propelled and self-steering (designed as a cleaning robot). The floor cleaning device advantageously has a wet mopping function via the at least one cleaning roller. Additionally or alternatively, a dry cleaning function can be provided.

[0051] According to the invention, a cleaning station of the type mentioned above is provided with a movable arm having a contact area for the at least one cleaning roller or for a holding element for the at least one cleaning roller. The movable arm allows the at least one cleaning roller to be removed from the floor cleaning device when the floor cleaning device is positioned at the cleaning station and the at least one cassette is fixed to the floor cleaning device. The movable arm allows the at least one cleaning roller to be automatically removed from the cleaning station. It is then provided separately from the floor cleaning head. It can then be cleaned separately by a user, for example, as in a washing machine. The floor cleaning device with the at least one cassette can be effectively cleaned at the cleaning station with the at least one cleaning roller removed.

[0052] In particular, the movable arm is assigned an axis of movement that is parallel to the axis of rotation of the at least one cleaning roller. This allows the at least one cleaning roller to be effectively removed from the floor head and, if necessary, reinserted.

[0053] According to the invention, a cleaning station is further provided for a floor cleaning device according to the invention, which comprises a movable transport device with a receptacle for the at least one cleaning roller, wherein the movable transport device has at least a first position for receiving the at least one cleaning roller in the receptacle and a second position for bringing the at least one cleaning roller received by the receptacle into a receiving space.

[0054] The movable transport device allows at least one cleaning roller to be transported from the floor head to the receiving area of ​​the cleaning station.

[0055] In particular, the movable transport device facilitates or enables the detachment of at least one cleaning roller from the floor head. The transport device allows for relative movement of the at least one cleaning roller to the floor head, including a detachment function for the cleaning roller and a corresponding transport function. It is advantageous if the receiving area is positioned below the floor cleaning unit when it is mounted on the cleaning station. This results in a compact design for the cleaning station.

[0056] Furthermore, it is advantageous to provide a receiving chamber with a receiving area, wherein the receiving chamber has an opening between a mounting device for the floor cleaning unit and the receiving area, through which the at least one cleaning roller can be moved from the floor cleaning unit into the receiving area of ​​the cleaning station after being detached. This allows for the transport of the at least one cleaning roller into the receiving area with a simple design of the cleaning station. For example, several cleaning rollers can be accommodated in the receiving area and then cleaned together (e.g., in a washing machine). The cleaning station can thus be designed to be compact, and in particular, automated detachment of the cleaning rollers from the floor head can be implemented.

[0057] For the same reason, it is advantageous if the transport device, at least with its mounting, is positioned so that it can be moved within the opening. This allows a cleaning roller to be moved from the floor head of the floor cleaning device through the opening into the receiving chamber.

[0058] In a structurally advantageous embodiment, the transport device with its receptacle is pivotably positioned on the cleaning station. The corresponding mobility (pivoting motion) of the receptacle allows a cleaning roller to be moved from the floor head of the floor cleaning device into the receptacle area.

[0059] According to the invention, a cleaning station and a floor cleaning device according to the invention are combined. The following description of preferred embodiments, in conjunction with the drawings, serves to explain the invention in more detail. The drawings show:

[0060] Figure 1 shows an embodiment of a floor cleaning device in

[0061] Shape of a self-steering and self-driving cleaning machine (cleaning robot) in perspective view;

[0062] Figure 2 shows another perspective view of the floor cleaning device according to Figure 1;

[0063] Figure 3 shows the floor cleaning device according to Figure 1 with a partially removed cleaning roller;

[0064] Figure 4 shows the same view as Figure 3, with the cleaning roller completely removed;

[0065] Figure 5 shows the same view as Figure 2 with the lens removed.

[0066] Cleaning roller;

[0067] Figure 6 shows the same view as Figure ... with a partial removal of a cassette;

[0068] Figure 7 shows the same view as Figure 5, with the cassette also removed;

[0069] Figure 8 shows an embodiment of a cassette (see also

[0070] Figure 6); Figure 9 shows an embodiment of a holding element with a cleaning roller held to it after removal from the floor cleaning device;

[0071] Figure 10 shows a partial sectional view of the floor cleaning device according to Figure 1 in the area of ​​a receiving shaft for the cassette with the cleaning roller;

[0072] Figure 11 shows another embodiment of a floor cleaning device with a pivoting open lid for a receiving chute for a cassette with a cleaning roller;

[0073] Figure 12 shows another embodiment with an open, removable cover for a cleaning shaft;

[0074] Figure 13 shows a schematic representation of an embodiment of a cleaning station (without further structures) when coupled to the floor cleaning device according to Figure 1 for the removal of the cleaning roller;

[0075] Figure 14 shows the same view as Figure 13 with partial removal of the cleaning roller;

[0076] Figures 15 to 21 show another embodiment of a floor cleaning device with

[0077] Figure 15 shows a partial view of a floor cleaning device with a further embodiment in the area of ​​a receiving chute with the lid removed; Figure 16 shows a perspective view of the floor cleaning device according to Figure 15 with the lid removed and a retaining element for a cleaning roller removed;

[0078] Figure 17 shows a similar view to Figure 16, with a cleaning roller removed from the floor cleaning device;

[0079] Figure 18 shows a partial representation of the cleaning roller with its associated holding element;

[0080] Figure 19 shows another partial representation of the floor cleaning device according to Figure 16 with the cassette partially removed (without the cleaning roller);

[0081] Figure 20 shows a sectional view of the floor cleaning device according to Figure 16 in the area of ​​a receiving shaft;

[0082] Figure 21 shows a similar representation to Figure 17 in a

[0083] Variant in which the cleaning roller with retaining element is removable;

[0084] Figure 22 shows a perspective bottom view of another embodiment of a floor cleaning device with the cassette partially removed;

[0085] Figure 23 shows a perspective view of the cassette according to

[0086] Figure 22;

[0087] Figure 24 shows another embodiment of a floor cleaning device in a bottom view with the cleaning roller removed; Figure 25 shows the floor cleaning device according to Figure 24 in a perspective view in a top view with the cassette removed;

[0088] Figure 26 shows a representation corresponding to Figure 25 in a perspective bottom view (with cassette during a process of removal);

[0089] Figure 27 shows the same view as Figure 26 with the cassette completely removed;

[0090] Figure 28 shows another embodiment of a floor cleaning device in a perspective bottom view during the process of removing a cleaning roller;

[0091] Figure 29 shows the same view as Figure 28 with the lens removed.

[0092] cleaning roller; and

[0093] Figure 30 shows a side view of an exemplary embodiment of a

[0094] Cleaning station in conjunction with a floor cleaning device as shown in Figure 28.

[0095] One embodiment of a floor cleaning device according to the invention is self-driving and self-steering and is designed as a cleaning robot.

[0096] A first embodiment of a floor cleaning device, shown in Figures 1 to 10 and designated by 10, comprises a floor head 12. The floor head 12 has a floor head body 14. Wheels 16 are mounted on the floor head body 14. The floor cleaning device 10, with its floor head 12, is self-propelled by means of these wheels 16. A wheel axle 18 is associated with the wheels 16. A forward direction 20 of travel of the floor cleaning device 10 during a cleaning process on a surface 22 to be cleaned is transverse and, in particular, perpendicular to the wheel axle 18.

[0097] Furthermore, a swiveling roller 24 is mounted on the floor head body 14, spaced apart from the wheels 16. Steering of the floor head 12 over the area 22 to be cleaned can generally be achieved via the roller 24 or by appropriate control of the wheels 16.

[0098] The wheels 16 and the roller 24 define a mounting level 26 for the floor head 12 on the surface 22 to be cleaned. If the surface 22 to be cleaned is flat, this mounting level 26 coincides with the surface 22 to be cleaned.

[0099] The bottom head 12 is equipped with a navigation device 28.

[0100] The floor head body 14 has a bottom surface 30 and a top surface 32. It is provided with a receiving shaft 34 for a cleaning roller 36. The receiving shaft is open to the bottom surface 30 of the floor head 12, which faces the mounting surface 26.

[0101] In one embodiment, the receiving shaft 34 is also open to a lateral side 38 of the base head 12 via an opening 40 (see, for example, Figure 4). An openable cover 43 is provided to close the opening 40.

[0102] The cleaning roller 36 is mounted on a cassette 42 with a holding device 44 on the floor head body 14. The cleaning roller 36 is removable from the cassette 42. The cassette 42 can be detachably fixed to a cassette holder 48 of the floor head body 14 via a fixing device 46.

[0103] On the bottom head body 14 sits a drive 50 for the cleaning roller 36 to its rotary drive (when the cleaning roller 36 is on the cassette 42 and the cassette 42 is fixed to the bottom head body 14 via the cassette holder 48 and the fixing device 46).

[0104] The drive motor 50 is associated with a driver 52 (Figure 5), which projects into the receiving shaft 34 on one side facing away from the opening 40.

[0105] A rotation axis 54 for the rotation of the cleaning roller 36 during cleaning operation (driven by the drive motor 50) is parallel to the wheel axis 18. It is transverse and, in particular, perpendicular to the forward direction of travel 20. The rotation axis 54 is parallel to the mounting plane 26.

[0106] In one embodiment, the cleaning roller 36 comprises a textile covering.

[0107] The cleaning roller 36 projects beyond an opening in the receiving shaft 34, which faces the mounting level 26, towards the mounting level 26 and touches the mounting level 26 during a cleaning process.

[0108] In one embodiment, the cassette holder 48 is movable and, for example, pivotable and, in particular, spring-supported. This allows the cleaning roller 36 to be pressed against the mounting surface 26 during a cleaning process, and also compensates for wear of the cleaning roller 36.

[0109] A removable tank assembly 56 for cleaning fluid is attached to the bottom head body 14. Cleaning fluid from the cleaning roller 36 is fed into this tank assembly 56, particularly without the use of a suction blower.

[0110] A removable tank 58 for cleaning fluid is also attached to the base body 14. The cleaning fluid is, in particular, pure water, optionally with a surfactant additive of cleaning agent. A humidification device 60 is provided, which is fluidly coupled to the tank 58 for cleaning fluid.

[0111] The humidification device 60 comprises a liquid supply 62 on the cassette 42 (Figure 8), via which cleaning fluid can be supplied to the cleaning roller 36 on the cassette 42 via nozzles on the cassette 42 for cleaning operation.

[0112] The cassette 42 further comprises a wiper device 64 (Figure 8), which serves to wipe and drain away dirt fluid from the cleaning roller 36. The wiper device 64 comprises a corresponding wiper strip, which in particular serves to improve the removal of dirt fluid from the cleaning roller using a textile material during a cleaning process.

[0113] Furthermore, a discharge device 66 (Figure 8) is arranged on the cassette 42. By means of this, scraped-off dirt fluid from the cleaning roller 36 can be coupled into the tank device 56 for dirt fluid.

[0114] The holding device 44 of the cassette 42 comprises a holding element 68 with a pivot bearing 70 for rotation about the axis of rotation 54. With the cleaning roller 36 positioned on the bottom head 14, the cleaning roller 36 is suspended, in a sense, between the pivot bearing 70 of the holding element 68 and the driver 52.

[0115] The retaining element 68 is located in the area of ​​the cover 43.

[0116] The holding device 44 comprises a further holding element 72 facing away from the holding element 68. This further holding element 72, in combination with the holding element 68, serves to hold the cleaning roller 36 on the holding device 44 (on the cassette 42). The further holding element 72 does not absorb any torque during operation of the floor cleaning device 10 with rotation of the cleaning roller 36. It serves to pre-position the cleaning roller 36 on the holding device 44. The holding element 68 with the pivot bearing 70 is associated with the opening 40 and, in particular, with the cover 43. In one embodiment (Figures 1 to 10), the holding element 68 is located on the cover 43.

[0117] In this embodiment, the cover 43 with the retaining element 68 (and thus the pivot bearing 70) can be removed from the bottom head body 14.

[0118] This allows the cleaning roller 36 to be removed from the cassette 42, even if the cassette 42 is fixed to the bottom head body 14 via the fixing device 46.

[0119] The basic principle is that the cleaning roller 36 can be removed from the base body 14 (from the holding device 44 of the cassette 43) by removing the cover 43 (compare, for example, Figure 3), or that the cover 43 can be removed from the base body 14 with the holding element 68, while the cleaning roller 36 remains attached to the cassette 42, and the cleaning roller 36 can then be removed from the cassette 42. Both options can be implemented on the same floor cleaning device.

[0120] The floor cleaning device 10 works as follows:

[0121] During cleaning, the cassette 42 with the cleaning roller 36 attached to it is positioned in the receiving shaft 34 and the cover 43 is closed. The cleaning roller 36 is connected to the drive 52 by a torque and coupled to the rotary bearing 70 of the holding element 68 (Figures 1, 2).

[0122] During cleaning operation, the floor head 12 travels over the surface 22 to be cleaned. In particular, it operates autonomously and autonomously over the surface 22 using the navigation device 28. Driven by the drive motor 50, the cleaning roller 36 rotates around the axis of rotation 54. It is moistened with cleaning fluid from the tank 58 via the moistening device 60. A pump, positioned on the floor head body 14, is provided for pumping cleaning fluid from the tank 56.

[0123] The cleaning roller 36 acts on the surface 22 to be cleaned with a corresponding mechanical impact through its rotation. The application of liquid improves the loosening of the dirt. The cleaning fluid is absorbed by the cleaning roller 36. The cleaning roller 36 rotates past the scraper device 64 (which is located on the cassette 42). The scraper device 64 removes the cleaning fluid from the textile covering of the cleaning roller 36 and feeds it to the outlet device 66. From there, it is conveyed into the tank device 56 for cleaning fluid.

[0124] In the solution according to the invention, the cleaning roller 36 is removable from the cassette 42, which is fixed to the floor head body 14 (see Figures 3 and 4). This allows the cleaning roller 36 to be cleaned separately, for example, in a washing machine, with the cassette 42 remaining attached to the floor head body 14. Both the cleaning roller 36 and the cassette 42 are generally exposed to dirt. For example, it is possible to effectively clean the cassette 42 (for cleaning the floor cleaning device 10 itself) at a cleaning station. The cleaning roller 36 can be cleaned separately by removing it from the floor head body 14.

[0125] For this purpose, the opening 40 is opened over the lid 43 (Figure 3).

[0126] In the illustrated embodiment, the cleaning roller 36 is attached to the cover 43 by means of a corresponding press-fit connection, for example, and is pulled out of the receiving shaft 34. A removal direction 74 (Figure 3) is parallel to the corresponding removal direction of the cover 43. The removal direction 74 is at least approximately parallel to the axis of rotation 54.

[0127] As a result, the cover 43 is removed and the cleaning roller 36 is detached from the base head body 14. The cassette 42 remains attached to the base head body 14 (see Figure 4). In this described variant, removing the cover 43 releases the cleaning roller 36 from the retaining device 44 of the cassette 42, and it is pulled out of the receiving shaft 34 by the corresponding movement of the cover 43.

[0128] It is also possible that the lid 43 is first detached from the base head body 14 and that the retaining element 68 is also detached from the base head body 14.

[0129] This can possibly be further supported by applying a corresponding force to the cleaning roller 36, for example from the underside 30, in order to cause the cover 43 to detach from the cleaning roller 36 (to detach the retaining element 68 from the cleaning roller 36).

[0130] Figure 5 shows a bottom view of the bottom head body 14 after the cleaning roller 36 has been released, with the cassette 42 still fixed via the fixing device 46.

[0131] The cassette 42 itself can be detached from the bottom head body 14 in a removal direction 76 (Figure 6).

[0132] In the illustrated embodiment, the removal direction 76 of the cassette 42 from the bottom head body 14 is parallel to the removal direction 74 of the cleaning roller 36 from the cassette 42.

[0133] Removing the cassette 42 from the base head body 14 may be useful, for example, for further cleaning of the cassette 42. Figure 7 then shows the same view as Figure 5, with the cassette 42 removed. The receiving chute 34 on the base head body 14 is then empty.

[0134] In the embodiment in which the cleaning roller 36 is removed from the bottom head body 14 with the cover 43 (compare Figure 9), the cleaning roller 36 can then be released from the retaining element 68 on the cover 43 by applying sufficient force.

[0135] Figure 11 shows an embodiment of a floor cleaning device 10, which is fundamentally designed like the floor cleaning device 10. A cover 78 is provided, which is pivotally mounted on the floor head body 14. A corresponding retaining element 80 with a pivot bearing 82 is attached to the cover 78. When the cover 78 is open (Figure 11), which is pivoted about a pivot axis 84, the pivot axis 84 being transverse and, in particular, perpendicular to the installation plane 26, the receiving chute 34 is accessible at the opening 40. The cleaning roller 36 can then be accessed. This can then be automatically or manually pulled out of the receiving chute 34 by releasing it from the cassette 42.

[0136] In this embodiment, the cover 78 is a non-removable element on the base head body 14 and remains attached to it. The cover 78, and thus also the retaining element 80, is movably positioned on the base head body 14, that is, it is movably attached to the base head body 12.

[0137] In another embodiment (Figure 12), a removable cover 86 is provided on the base head body 14. This cover 86 includes a retaining element corresponding to the retaining element 68 with a pivot bearing. When the cover 86 is removed, the corresponding retaining element with the pivot bearing is also removed. The receiving shaft 34 with the cleaning roller 36 is accessible at the opening 40. The cleaning roller 36 can be removed from the cassette 42 while the cassette remains attached to the base head body 14.

[0138] A cleaning station 88 is assigned to the floor cleaning device 10 (Figures 13, 14). The floor cleaning device 10 becomes soiled during cleaning operation. The cleaning station 88 serves to clean the floor cleaning device 10 itself (outside of cleaning operation, on the surface 22 to be cleaned).

[0139] The cleaning station 88 can perform further tasks, such as charging a battery unit of the floor cleaning device 10, collecting dirt fluid from the tank unit 56, supplying cleaning fluid to the tank unit 58, and cleaning the receiving chute 34 (see below). The cleaning station 88 has, in particular, corresponding equipment and structures for this purpose, which are not shown in Figures 13 and 14.

[0140] In one embodiment, the cleaning station 88 comprises a mounting body 90. The cleaning station 88 can be mounted on a surface, and in particular on a floor, via the mounting body 90.

[0141] In one embodiment, the mounting body 90 is plate-shaped. It has a ramp 92 and a mounting level 94. The floor cleaning device 10 can be mounted on the mounting level 94 via the ramp 92 and placed there.

[0142] The mounting body 90 is assigned a specific position for the floor cleaning device 10. In this corresponding position 96 of the floor cleaning device 10 at the cleaning station 88, the cleaning roller 36 is automatically removed from the floor head 12. In the corresponding position 96, the remaining floor head 12 can then also be cleaned. The cleaning station 88 includes a movable arm 98. In one embodiment, the arm 98 is positioned so as to be displaceable relative to the mounting body 90.

[0143] In one embodiment, the arm 98 is mounted on a bracket 100. This bracket 100 in turn has a further arm 102, which is spaced apart and, in particular, parallel to the arm 98. In another embodiment, the further arm 102 is guided on a guide device 104 on the mounting body 94. It is equipped with a drive for its displacement movement in a direction 106. When the floor cleaning device 10 is positioned in position 96 at the cleaning station 88, this direction 106 is essentially parallel to the axis of rotation 54. It is essentially parallel to the wheel axis 18. It is transverse and, in particular, perpendicular to the forward direction of travel 20. It is parallel to the mounting plane 26.

[0144] The bracket 100 is formed by the arm 98 and the further arm 102, wherein a bridge 108 is connected to the arm 98 and the further arm 102 and is, for example, oriented perpendicular to this arm 98 and further arm 102.

[0145] On the arm 98 an attack area 110 for the cleaning roller 36 or the cover 86 (or the retaining element 68) is arranged.

[0146] In the embodiment shown in Figures 13 and 14, the attack area 110 is designed to attack the cleaning roller 36, specifically to attack the end face of the cleaning roller 36. In this embodiment, the cover 43 is completely removable.

[0147] However, it is also possible that the engagement area is designed to grip the cover 43 and that the cleaning roller 36 can be pulled out of the receiving shaft 34 by removing the cover. The cleaning roller 36 can be removed from the cassette 42 and from the bottom head 12 via the driven movement of the further arm 102 in direction 106 and the engagement area 110 on the cleaning roller 36 (or the cover 43) by means of the arm 98 (see Figure 14).

[0148] This works as follows:

[0149] The floor head 12 is moved to the cleaning station 88. The floor head 12 is positioned in its corresponding position 96 on the installation level 94.

[0150] In the illustrated embodiment, the lid 43 is then opened. (This can also be done automatically by the cleaning station 88.)

[0151] The arm 98 is then moved to the end face of the cleaning roller 36 and the attack area 110 mechanically couples with the cleaning roller 36. The coupling is such that it is translation-resistant.

[0152] By moving the arm 98 in the direction 106, the cleaning roller 36 is pulled out of the cassette 42 and thus out of the receiving shaft 34 and is thereby removed from the bottom head body 14.

[0153] Figure 14 shows an intermediate state in which the cleaning roller 36 is not yet fully completed.

[0154] When the cleaning roller 36 is completely removed from the floor head body 14, it can be removed by a user and cleaned separately, for example in a washing machine. The floor cleaning device 10 is already correctly positioned at the cleaning station 88 via position 96 for a cleaning operation. For example, the floor head 12 can be cleaned at the receiving chute with the fixed cassette 42 by applying a suitable spray.

[0155] When the cleaning roller 36 is fixed to the cover 43 via the retaining element 68, the cleaning roller 36 is extended in a similar manner, with the attack area 110 of the arm 98 then mechanically coupling to the cover 43.

[0156] A fresh or cleaned cleaning roller 36 can then be reinserted using the reverse process. It is coupled to the engagement area 110, and by retracting the arm 98, the cleaning roller 36 is brought into the receiving chute 34 and positioned on the cassette 42.

[0157] The arm 98 then moves away from the bottom head 12 and the cover 43 is closed automatically or by an operator.

[0158] In another embodiment of a floor cleaning device, shown in Figures 15 to 23 and designated 120, a floor head 122 is provided. A cover 124 is positioned on the upper side of the floor head 122. A tank 126 for cleaning fluid is provided, which is positioned on the floor head 122 below the cover 124. Furthermore, a tank 128 for cleaning fluid is provided (this tank 128 is shown in Figures 16, 17 and 21).

[0159] With regard to the functional components, the floor cleaning device 120 is similar or identical in design to the floor cleaning device 10.

[0160] The base 122 has a receiving shaft 130 for a cassette 132 with a holding device 134. The holding device 134 rotates a cleaning roller 136 within the receiving shaft 130 for cleaning operation. The receiving shaft 130 is open laterally at the base 122 via an opening 138. A removable or movable cover is provided for closing this opening 138 (not shown in the drawings).

[0161] A drive motor 140 (Figure 20) is provided to drive the cleaning roller 136 when it is positioned in the receiving shaft 130. The cleaning roller 136 has a sleeve that can be attached to the drive motor 140. The drive motor 140 is an internal drive motor with respect to the cleaning roller 136 when it is positioned in the receiving shaft 130.

[0162] The drive motor 140 is fixed to the bottom head 122 in an area 142 which is facing away from the opening 138.

[0163] When the cleaning roller 136 is mounted on the drive motor 140, a corresponding drive shaft of the drive motor 140 also forms a rotary bearing.

[0164] The holding device 134 has a holding element 144, which is positioned facing away from the drive motor 140. The holding element 144 in turn has a rotary bearing 146 for the rotatable mounting of the cleaning roller 136 during driven rotation.

[0165] The retaining element 144 is located in the area of ​​the opening 138 or the cover for the opening 138.

[0166] The retaining element 144 is detachably arranged on the retaining device 134, separate from the cassette 132. A corresponding fixing device 148 is provided, which allows the retaining element 144 to be detachably fixed, for example, to the cassette 132 (see below). The cassette 132 itself is held on the base 122 by a cassette holder 150.

[0167] A releasable axial fixation of the cassette 132 with the holding device on the base head 122 is provided in the area of ​​a transverse wall 152. This transverse wall 152 is located opposite the opening 138 on a lateral side opposite the lateral side (on which the opening 138 is located).

[0168] In one embodiment, this corresponding fixing device is designed as a push-snap device. Reference is made in this context to the unpublished German patent application.

[0169] Reference is made to No. 10 2024 103 698.2 of 9 February 2024 and reference is made to it in full.

[0170] It is specifically provided that the retaining element 144, when it is attached to the cassette 132, is positioned on the cassette 132 in such a way that an operating element for releasing the fixation is covered by the transverse wall 152.

[0171] In an example of a pressure-snap device, the fixation with the transverse wall 152 can be released by applying pressure to the cassette 132 from an end face 154 (compare figure 16).

[0172] In one embodiment, the retaining element 144 is designed such that it has a section 156 which rests against the cassette holder 150 or has a correspondingly small gap. The arrangement is such that the corresponding pressure-snap mechanism cannot be released by applying pressure to the retaining element 144 in the direction of the transverse wall 152, particularly due to the contact of the section 156.

[0173] When the retaining element 144 is positioned on the cassette 132, unintentional detachment of the cassette 132 from the base 122 in the receiving shaft 130 is not possible. The retaining element 144 must be removed first.

[0174] The floor cleaning device 120 functions as follows with regard to the removal of the cleaning roller 136:

[0175] In an initial state, the opening 138 is closed by an openable cover (not shown in the drawings), or no cover is provided and the receiving shaft 130 is always open at the opening 138. To remove the cassette 132, this cover is opened or, in one embodiment, removed. The state then corresponds to that shown in Figure 15.

[0176] The retaining element 144, which is an "intermediate element" between the lid and the cassette 132, is connected to the base head 122. It is located, in particular, on the cassette 132 and is fixed to the cassette 132 via a retaining element fixing device 158 (see Figure 18).

[0177] In one embodiment, a movable locking hook 160 is provided on the retaining element 144. The locking hook 160 points towards the cassette 132. An operating element 162 for releasing the locking mechanism is accessible from an outer side of the retaining element 144 (facing away from the receiving slot 130).

[0178] Cassette 132 has a locking opening for the locking hook 160.

[0179] The retaining element 144 is then removed from the base head 122 by releasing the retaining element fixing device 158. This state is shown in Figure 16.

[0180] This removal can be carried out manually by an operator or automatically, for example at a suitable cleaning station. The cleaning roller 136 can then be pulled out of the cassette 132 and removed from the base 122. The corresponding removal direction 164 is parallel to the axis of rotation of the cleaning roller 136 (see Figure 17).

[0181] In this embodiment, the lid is first opened, then the retaining element 144 is removed from the base head 122, and then the cleaning roller 136 is removed from the cassette 132, which remains fixed to the base head 122.

[0182] The cleaning roller 136 can be removed from the cassette 132 manually by an operator or automatically, for example at a cleaning station.

[0183] The cassette 132 can be removed from the base 122 itself. The pressure-snap mechanism is released, and the cassette 132 can be pulled out of the receiving shaft 130 in a direction parallel to the removal direction 164 (see Figure 19).

[0184] When the retaining element 144 is attached to the base 122 and, in particular, to the cassette 132, the area 156 prevents the cassette 132 from being detached. If the cassette 132 is to be removed from the receiving chute 130 in the removal direction 164 (with the cleaning roller 136 attached or with the cleaning roller 136 already detached), the retaining element 144 must first be removed from the cassette 132.

[0185] In the described embodiment, the retaining element 144 is connected to the cassette 132. It is also possible, in principle, for the retaining element to be connected to the cassette holder 150. The retaining element 144 is connected to the cassette 132 in such a way that, if the cassette 132 moves (by means of appropriate bearings on the cassette holder 150), it moves with it. In a variant of an embodiment (Figure 21), the cleaning roller 136 is connected to the retaining element 144 (for example, by an interference fit) in such a way that when the retaining element 144 is removed in the removal direction 164, the cleaning roller 136 remains held by the retaining element 144 and is carried along.

[0186] This carrying-along with the retaining element 144 can be prevented, for example, by an operator exerting a corresponding force from below on the cleaning roller 136 when he loosens and removes the retaining element 144 and thus also removes it from the cleaning roller 136.

[0187] Otherwise, the floor cleaning device 120 works as described above.

[0188] Figure 22 shows a bottom view of the floor cleaning device 122.

[0189] In this embodiment, a sweeping brush 166 is also arranged to rotate on the bottom head 122. Furthermore, side brushes 168 are provided.

[0190] Cassette 132 is similar to cassette 42 in that it is equipped with a scraper device 164 and a nozzle device 66. For an embodiment of the cassette, reference is made to the unpublished German patent application No. 10 2024 103 709.1 dated February 9, 2024.

[0191] In the case of the floor cleaning device 10 and the floor cleaning device 120, the corresponding cassette 42 or 132 can be removed in the same removal direction as the cleaning roller 36 from the cassette 42 or 132, when the cassette 42 or 132 is fixed to the corresponding floor head 12 or 122.

[0192] In another embodiment of a floor cleaning device, shown in Figures 24 to 27 and designated there as 176, a floor head 178 is provided with a receiving chute 180. The receiving chute 180 accommodates a cassette 182. The receiving chute 180 is open on its underside 184 towards the installation surface. It is also open laterally via an opening 186. Through the opening 186, a corresponding cleaning roller can be removed from the cassette 182 and thus from the floor head 178, as described above, when the cassette 182 is fixed to the floor head 178.

[0193] The cassette 182 can be removed from the bottom end 178 from the underside 184 (compare Figures 25, 26). The receiving chute 180 has an opening 188 on its underside 184, in which the cleaning roller is positioned during cleaning operation.

[0194] The cassette 182 can be detached from the base 178 and removed via this opening 188. One removal direction is, in particular, perpendicular to the removal direction of the cleaning roller from the cassette 182.

[0195] A removal direction for removing the cassette 182 from the bottom head 178 has a transverse component to the installation plane 26.

[0196] In another embodiment of a floor cleaning device, shown in Figures 28 and 29 and designated 190, a floor head 192 is provided which includes a receiving shaft 194. A cassette 196 is removably positioned in this receiving shaft 194.

[0197] The cassette 196 holds a cleaning roller 198 (compare figure 29).

[0198] The cleaning roller 198 is positioned on the cassette 196 above its holding device in such a way that it can be removed from the cassette 196, when the latter is seated in the receiving shaft 194, via an underside 200 of the base head 192. In particular, it can be pivoted out of the cassette 196 with receiving shaft 194 (see Figure 28).

[0199] In one embodiment, a fixing device 202 is mounted on the end face of the cleaning roller 198. This fixing device 202 prevents the cleaning roller 198 from detaching from a corresponding retaining element with a rotary bearing. By releasing the fixing device 202, the cleaning roller 198 can be pivoted out, as shown in Figure 28, and thus detached from the cassette 196 and, in turn, from the base head 192.

[0200] A corresponding swivel capability can be supported by, for example, an internal drive motor 204 being swivelle to the base head 192 via a corresponding bearing device 206.

[0201] In a cleaning operation of the floor cleaning device 10, this swiveling capability is blocked at the bearing unit 206.

[0202] In one variant of the floor cleaning device 190, the intake chute 194 has a side opening 208. This opening 208 is closed by a lid 210 that can be opened.

[0203] When the lid 210 is open, the cleaning roller 198 can also be removed from the cassette 196 in a removal direction 212 parallel to the axis of rotation of the cleaning roller 198, at the operator's discretion.

[0204] With the floor cleaning device 190, the cleaning roller 198 can be removed with a removal direction perpendicular to the installation plane 26.

[0205] In this variant of the embodiment, it is also possible to remove the cleaning roller 198 from the cassette 196, which is fixed to the base 192, in the removal direction 212 parallel to the mounting surface 26. One embodiment of a cleaning station 214 is particularly suitable for use with the floor cleaning device 190. The cleaning station 214 has a station body 216. The station body 216 includes a receiving chamber 218 with a receiving space 220. A mounting surface 222 is provided, which serves to mount the floor cleaning device 190.

[0206] The installation level 222 forms a ceiling wall of the receiving chamber 218 or is arranged above such a ceiling wall.

[0207] The installation level 222 is provided with an opening 224 to the recording room 220.

[0208] If the floor cleaning device 190 is properly positioned at the cleaning station 214, then the receiving room 220 is located below the floor cleaning device 190 with respect to a height direction 226.

[0209] The station body 216 is provided with at least one ramp 228, via which the floor cleaning device 190 can be driven onto the installation level 222.

[0210] In a cleaning position 230 of the floor cleaning device 190 at the cleaning station 214, it is positioned so that the cleaning roller 198 lies at the opening 224.

[0211] The cleaning station 214 is equipped with a transport device 232.

[0212] The transport device 232 has a receptacle 234 which serves to receive a cleaning roller 198 detached from the bottom head 192.

[0213] The receptacle 234 is positioned to receive the cleaning roller 198, and in particular within the opening 224.

[0214] The transport device 232 is movably arranged and movable in such a way that a cleaning roller 198 received by the receptacle 234 can be brought through the opening 224 into the receiving space 220 of the receiving chamber 218.

[0215] In one embodiment, the transport device 232 is pivotably mounted on a pivot bearing 236 about a pivot axis 238.

[0216] The swivel bearing 236 is positioned, for example, in the area of ​​the receiving chamber 218 and in particular below the opening 224 (with respect to the height direction 226).

[0217] The transport device 232 is controlled in particular by a corresponding control device of the cleaning station 214.

[0218] In a first position 240 (Figure 30), the transport device 232 with its receptacle 234 is aligned with the floor cleaning machine 190 with the cleaning roller 198. The cleaning roller 198 is detached from the cassette 196 as described above. The described pivoting movement (see Figure 28) is carried out via the transport device, resulting in a final detachment from the floor head 192 and, in particular, from the cassette 196.

[0219] In a second position of the transport device 232 (not shown in the drawings) the detached cleaning roller is then placed in the receiving chamber 220.

[0220] According to the invention, a floor cleaning device is provided in which the cleaning roller (for example, the cleaning roller 36) can be detached from the floor head (for example, the floor head 12) in a kind of two-step process.

[0221] First, the cleaning roller 36 can be removed from the floor head 12 and from the associated cassette 42. The "empty" cassette 42 can then be removed from the floor head 12.

[0222] It is also generally possible to remove the cassette 42 with the cleaning roller 36 attached to it from the bottom head 12.

[0223] This makes it possible, for example, to remove the cleaning roller 36 from the floor head 12 for use with a separate cleaning roller (e.g., in a washing machine). The cassette 42 remaining on the floor head 12 can then be cleaned, for example, at a cleaning station.

[0224] Reference symbol list

[0225] floor cleaning device

[0226] Bodenkopf

[0227] floor, head, body

[0228] Wheels

[0229] wheel axle

[0230] Forward direction

[0231] Area to be cleaned

[0232] role

[0233] Installation level

[0234] Navigation system

[0235] bottom

[0236] Top

[0237] Access shaft

[0238] Cleaning roller

[0239] Lateral side

[0240] opening

[0241] cassette

[0242] Lid

[0243] Holding device

[0244] Fixation device

[0245] Cassette holder

[0246] drive motor

[0247] drive

[0248] axis of rotation

[0249] Tank system for dirty fluid

[0250] Tank system for cleaning fluid

[0251] humidification system

[0252] Supply

[0253] Scraper device

[0254] Muzzle device retaining element

[0255] pivot bearing

[0256] Additional retaining element

[0257] Direction of extraction

[0258] Direction of extraction

[0259] Lid

[0260] retaining element

[0261] pivot bearing

[0262] swivel bearing

[0263] Lid

[0264] Cleaning guide

[0265] Mounting body

[0266] ramp

[0267] Installation level

[0268] position

[0269] arm

[0270] Iron

[0271] Arm (another)

[0272] Management system

[0273] Direction / Opposite direction

[0274] web

[0275] Attack area

[0276] floor cleaning device

[0277] Bodenkopf

[0278] Lid

[0279] Tank system for cleaning fluid

[0280] Tank system for dirty fluid

[0281] Access shaft

[0282] cassette

[0283] Holding device

[0284] Cleaning roller

[0285] opening

[0286] Drive motor area

[0287] retaining element

[0288] pivot bearing

[0289] Fixation device

[0290] Cassette holder

[0291] transverse wall

[0292] Front

[0293] Area

[0294] Retaining element fixing device

[0295] Locking hook

[0296] Control element

[0297] Direction of extraction

[0298] Sweeping brush

[0299] Side brush

[0300] floor cleaning device

[0301] Bodenkopf

[0302] Recording area

[0303] cassette

[0304] bottom

[0305] opening

[0306] opening

[0307] floor cleaning device

[0308] Bodenkopf

[0309] Access shaft

[0310] cassette

[0311] Cleaning roller

[0312] bottom

[0313] Fixation device

[0314] drive motor

[0315] Storage facility

[0316] opening

[0317] Lid

[0318] Removal direction Cleaning station Station body Receiving chamber Receiving space Installation level Opening Height direction Ramp Cleaning position Transport device Receiving Swivel bearing Swivel axis First position

Claims

Patent claims 1. Floor cleaning device comprising a floor head (12; 122; 178; 192), at least one cleaning roller (36; 136; 198) arranged on the floor head (12; 122; 178; 192) and driven to rotate about a rotation axis (54) during cleaning operation, at least one cassette (42; 132; 196), a holding device (44; 134) associated with the at least one cassette (42; 132; 196) and holding the at least one cleaning roller (36; 136; 198) on the at least one cassette (42; 132; 196), and a fixing device (46) for fixing the at least one cassette (42; 132; 196) to the floor head (12; 122; 178; 192), wherein the at least one Cassette (42; 132; 196) is removable from the base head (12; 122; 178; 192), characterized in that the at least one cleaning roller (36; 136; 198) can be removed from the at least one cassette (42; 132; 196) when the at least one cassette (42; 132; 196) is fixed to the base head (12; 122; 178; 192) via the fixing device (46).196) is removable and is removable from the base head (12; 122; 178; 192).; 2. Floor cleaning device according to claim 1, characterized in that the holding device (44; 134) has a holding element (68; 80; 144) for the at least one cleaning roller (36; 136; 198), wherein, when the at least one cassette (42; 132; 196) is fixed to the floor head (12; 122; 178; 192), the at least one cleaning roller (36; 136; 198) can be removed from the cassette (42; 132; 196) or a removal capability can be released by a relative movement of the holding element (68; 80; 144) and the at least one cleaning roller (36; 136; 198).

3. Floor cleaning device according to claim 2, characterized in that during cleaning operation of the floor cleaning device with at least one cleaning roller (36; 136; 198) rotating around the axis of rotation (54), the at least one cleaning roller (36; 136; 198) is held on the holding device (44; 134) via the holding element (68; 80; 144).

4. Floor cleaning device according to claim 2 or 3, characterized in that the holding element (68; 80; 144) has a rotary bearing (70; 82; 146) for the driven rotation of the at least one cleaning roller (36; 136; 198).

5. Floor cleaning device according to one of claims 2 to 4, characterized in that the at least one retaining element (68; 80; 144) is movably arranged relative to the at least one cassette (42; 132; 196).

6. Floor cleaning device according to one of claims 2 to 5, characterized in that the retaining element (68; 80; 144) is movably or detachably attached to the floor head (12; 122; 178; 192).

7. Floor cleaning device according to one of claims 2 to 6, characterized in that a receiving shaft (34; 130; 180) for the at least one cassette (42; 132; 196) is arranged or formed on the floor head (12; 122; 178; 192), wherein the receiving shaft (34; 130; 180) is closed on one side by an openable cover (43; 210), and that the retaining element (68; 80; 144) is positioned in the area of ​​the cover (210) or on the cover (43).

8. Floor cleaning device according to one of the preceding claims, characterized in that a receiving shaft (34; 130; 180) for the at least one cassette (42; 132; 196) is arranged or formed on the floor head (12; 122; 178; 192) and that an openable cover (43; 210) is associated with the receiving shaft (34; 130; 180).

9. Floor cleaning device according to claim 8, characterized in that a retaining element (68) of the retaining device (44) is located on the lid (43).

10. Floor cleaning device according to claim 9, characterized in that the at least one cleaning roller (36) can be removed from the at least one cassette (42) by removing the cover (43) when the latter is fixed to the floor head (12).

11. Floor cleaning device according to claim 9 or 10, characterized in that, with the lid (43; 78; 86) open, the at least one cleaning roller (36) is accessible in such a way that it can be removed from the at least one cassette (42) when the at least one cassette (42) is fixed to the floor head (12).

12. Floor cleaning device according to one of claims 2 to 11, characterized in that the retaining element (144) is removablely attached to the floor head (122).

13. Floor cleaning device according to one of claims 2 to 12, characterized in that the retaining element (144) is removable relative to the at least one cassette (132).

14. Floor cleaning device according to claim 12 or 13, characterized in that the retaining element (144) is an element separated from a cover of a receiving shaft (130) for the at least one cassette (132).

15. Floor cleaning device according to one of claims 12 to 14, characterized in that the retaining element (144), when fixed relative to the at least one cassette (132), covers an operating element for releasing the fixation of the at least one cassette (132) on the floor head (122).

16. Floor cleaning device according to one of the preceding claims, characterized in that the at least one cassette (42; 132; 196) with at least one cleaning roller (36; 136; 198) held therein is removable from the floor head (12; 122; 178; 192) and in particular that when at least one cassette (42; 132; 196) with at least one cleaning roller (36; 136; 198) held therein has been removed from the floor head (12; 122; 178; 192), the at least one cleaning roller (36; 136; 198) is removable from the at least one cassette (42; 132; 196).

17. Floor cleaning device according to one of the preceding claims, characterized in that the at least one cleaning roller (36) is removable in a removal direction (74) from the at least one cassette (42) when the latter is fixed to the floor head (12), which is parallel to a removal direction (76) of the at least one cassette (42) from the floor head (12).

18. Floor cleaning device according to one of the preceding claims, characterized in that a removal direction (74) of the at least one cleaning roller (36) from the floor head (12) is at least approximately parallel to the axis of rotation (54) of the at least one cleaning roller (36).

19. Floor cleaning device according to one of claims 1 to 17, characterized in that the at least one cleaning roller (198) can be removed from the at least one cassette (196) when the latter is fixed to the floor head (192) by at least one of the following: the at least one cleaning roller (198) can be removed via an underside (200) of the floor head (192), wherein the underside (200) faces a mounting surface (26) of the floor head (192) on a surface (16) to be cleaned; the at least one cleaning roller (198) can be removed via the opening (208) of a receiving shaft (194) for the at least one cleaning roller (198), wherein the opening (208) faces a mounting surface (26).

20. Floor cleaning device according to claim 19, characterized in that the at least one cleaning roller (198) can be removed from the at least one cassette (196) by means of a pivoting movement when the latter is fixed to the floor head (192).

21. Floor cleaning device according to one of the preceding claims, characterized in that the at least one cassette (42) can be removed from the floor head in a removal direction (76) parallel to a mounting plane (26) of the floor head (12).

22. Floor cleaning device according to one of claims 1 to 20, characterized in that the at least one cassette (182; 196) can be removed from the floor head (178; 192) with a directional component transverse to a mounting plane of the floor head (178; 192).

23. Floor cleaning device according to one of the preceding claims, characterized in that the at least one cassette (42; 132; 196) is held on the floor head (12; 122; 178; 192) via a cassette holder (48; 150), wherein in particular the cassette holder (48; 150) is movably attached to the bottom head (12; 122; 178; 192).

24. Floor cleaning device according to one of the preceding claims, characterized by at least one of the following: a drive motor (50; 140) for the at least one cleaning roller (36; 136; 198); a humidification device (60) for supplying cleaning fluid to the at least one cleaning roller (36; 136; 198); a scraper device (64) for scraping off dirt fluid from the at least one cleaning roller (36; 136; 198), which is arranged in particular on the at least one cassette (42; 132; 196); a tank device (56) for dirt fluid, which is in particular removable from the floor head (12; 122; 178; 192); the at least one cleaning roller (36; 136; 198) has a textile covering.

25. Cleaning station for a floor cleaning device according to one of the preceding claims, comprising a movable arm (98) with an engagement area on the at least one cleaning roller (36; 136; 198) or on a retaining element (68; 80; 144) for the at least one cleaning roller (36; 136; 198), wherein the at least one cleaning roller (36; 136; 198) can be removed from the floor cleaning device via the movable arm (98) when the floor cleaning device is positioned at the cleaning station and the at least one cassette (42; 132; 196) is fixed to the floor cleaning device.

26. Cleaning station according to claim 25, characterized in that the movable arm (98) is assigned an axis of movement (106) which is parallel to the axis of rotation (54) of the at least one cleaning roller (36; 136; 198).

27. Cleaning station for a floor cleaning device according to one of claims 1 to 24, comprising a movable transport device (232) with a receptacle (234) for the at least one cleaning roller (36; 136; 198), wherein the movable transport device (232) has at least a first position for receiving the at least one cleaning roller (36; 136; 198) in the receptacle (234) and a second position for bringing the at least one cleaning roller (36; 136; 198) received by the receptacle (234) into a receiving space (220).

28. Cleaning station according to claim 27, characterized in that the receiving chamber (220) is positioned below the floor cleaning device when the floor cleaning device is placed on the cleaning station.

29. Cleaning station according to claim 27 or 28, characterized by a receiving chamber (218) with the receiving space (220), wherein the receiving chamber (218) comprises an opening (224) between a mounting device (222) for the floor cleaning device and the receiving space (220), wherein the at least one cleaning roller (36; 136; 198) can be brought through the opening (224) into the receiving space (220) of the cleaning station after being detached from the floor cleaning device.

30. Cleaning station according to claim 29, characterized in that the transport device (232) is movably positioned in the opening (224) at least with its receptacle (234).

31. Cleaning station according to one of claims 27 to 30, characterized in that the transport device (232) with the receptacle (234) is pivotably positioned on the cleaning station.

32. Combination of the cleaning station according to one of claims 25 to 31 with a floor cleaning device according to one of claims 1 to 24. * * *

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