Floor cleaning device with a pivot bearing unit with an abutment

Abstract

The invention relates to a floor cleaning device comprising a floor head (22), at least one cleaning roller (66) which is rotatably arranged about an axis of rotation (134) on the floor head (22) and for which a drive motor (104) is provided for rotational drive, a pivot bearing unit (132) for the at least one cleaning roller (66), and a dirty fluid tank (160) that removeably sits on the floor head (22), characterised in that a receiving shaft (126) for the at least one cleaning roller (66) is arranged on the floor head (22), the pivot bearing unit (132) has a first pivot bearing (136) which is securely arranged on the floor head (22) and positioned on the receiving shaft (126), the pivot bearing unit (132) has a second pivot bearing (138) which is arranged on a cover (144) for the receiving shaft (126), wherein the cover (144) can be moved relative to the floor head (22), and wherein, during operation of the floor cleaning device, the at least one cleaning roller (66) is rotatably mounted on the first pivot bearing (136) and on the second pivot bearing (138) as an abutment to the first pivot bearing, and the at least one cleaning roller (66) can be removed from the cover (144).

Description

[0001] Floor cleaning device with pivot bearing device with abutment

[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 so as to be rotatable about a rotation axis and for which a drive motor is provided for the rotary drive, a rotary bearing device for the at least one cleaning roller, and a dirt fluid tank which is removably mounted on the floor head.

[0003] US 2017 / 0055791 A1 discloses a vacuum cleaner having a main body and a suction brush connected to the main body.

[0004] EP 3 834 693 B1 discloses a surface cleaning device with a steam unit and a brush roller.

[0005] CN 112971626 A discloses a wiping and cleaning device.

[0006] DE 10 2016 111 808 A1 discloses a wet cleaning device with a rotatable cleaning roller and a moistening device for applying a liquid to the cleaning roller. The wet cleaning device has a wiping device that can be moved to the cleaning roller to assist in removing liquid and / or dirt from the cleaning roller and / or to assist in applying liquid to the cleaning roller.

[0007] US 2008 / 0289142 Al discloses a cleaning device with a motor-driven endless absorber belt.

[0008] WO 2019 / 029821 A1 discloses a surface cleaning machine with a lid device for a dirty fluid tank device. WO 2021 / 043429 A1 discloses a floor cleaning machine with a hair pickup and a method for operating a floor cleaning machine.

[0009] WO 2020 / 207557 A1 discloses a surface cleaning machine with a tank device for dirty fluid, wherein a probe device is provided for determining a filling level of the tank device for dirty fluid.

[0010] EP 1 850 725 Bl discloses an autonomous surface cleaning robot for wet and dry cleaning.

[0011] WO 2022 / 022640 A1 discloses a cleaning device with a floor tool body and with a wiping module and a vacuum cleaner module, which can be interchangeably fixed to the floor tool body.

[0012] EP 3 695 767 A1 discloses a floor cleaning device with a collecting container and a microfiber brush roller. A housing is provided that is movable along a surface to be cleaned. A battery is mounted on the housing and electrically connected to a drive motor.

[0013] WO 2021 / 112354 A1 discloses a vacuum cleaner.

[0014] Cleaning devices are disclosed in CN 111685647 A, US 2020 / 0315415 A, EP 3 117 754 A1, US 2015 / 0313434 A, JP 2015146958 A2 or EP 2 659 816 A2. Further cleaning devices are disclosed in US 2006 / 0064828 A or WO 01 / 41618 A1.

[0015] CN 108478109 A and CN 209489960 U disclose robots for cleaning photovoltaic modules.

[0016] DE 10 2015 104 749 A1 discloses a hand-operated or autonomous floor cleaner, as does DE 10 2015 104 750 A1. Floor cleaning devices are described, for example, in EP 3 750 464 A1, EP 3 884 834 A1, US 2021 / 018620 A1, or KR 2012 06900U.

[0017] WO 2018 / 162092 A1 discloses a floor cleaning device with which an autonomous cleaning of a floor surface can be carried out.

[0018] Floor cleaning devices are also disclosed, for example, in EP 2 574 264 B1, US 8,855,941 B1, DE 102 42 257 B4 and US 10,149,589 B2.

[0019] DE 20 2015 101 302 Ul discloses a cleaning device in the form of a vacuum cleaner.

[0020] From WO 2016 / 058901 Al, WO 2016 / 058856 Al, WO 2017 / 063663 Al,

[0021] Surface cleaning machines are known from WO 2016 / 058879 A1 and WO 2016 / 058956 A1. A surface cleaning machine is also known from WO 2016 / 058907 A1.

[0022] From US 4,875,246 a portable floor cleaning device is known which has a roller driven by an electric motor.

[0023] From DE 20 2009 013 434 Ul a device for wet cleaning floors with a brush which can be rotated about a rotation axis is known.

[0024] A cleaning machine is known from CN 201 197 698 Y.

[0025] US 6,026,529 discloses a device for cleaning floors or other hard surfaces.

[0026] WO 2010 / 041185 A1 discloses a surface cleaning machine with rotating brushes. US Pat. No. 7,665,174 B2 discloses a cleaning head for a floor cleaning machine.

[0027] From US 4,173,054 a floor cleaner is known which comprises a handle, a main body, a roller mechanism with a roller with a cleaning belt, a scraper and a dirt fluid receptacle.

[0028] WO 2013 / 106762 A2 discloses a surface cleaning machine with a cleaning roller and a drive unit for driving the cleaning roller. A dirt tray is provided into which the cleaning roller sweeps dirt during rotation. The dirt tray can be opened.

[0029] From US 7,921,497 B2 a floor scrubber is known which is manually operated and comprises a drive roller which is coupled to a scrubbing roller.

[0030] Another floor cleaning machine is known from WO 2015 / 086083 Al.

[0031] A hard floor cleaning device is known from US 3,789,449.

[0032] From DE 103 57 637 A1 a self-propelled sweeper with a sweeping brush and an associated dirt collection chamber is known.

[0033] A household floor cleaning device with a wiping roller is known from DE 10 2007 054 500 Al.

[0034] US 2006 / 0272120 A1 discloses a floor cleaning device comprising a housing, a hose assembly, and a cleaning head. DE 10 2017 120 723 A1 discloses a cleaning machine station for a cleaning machine, wherein the cleaning machine station has a receiving chamber for a cleaning head of the cleaning machine.

[0035] From WO 2005 / 087075 A1 a floor cleaning machine is known with a handle which is pivotably arranged on a base.

[0036] CN 107007215 A discloses a floor cleaning robot.

[0037] DE 20 2018 104 772 Ul discloses a dirty water collection mechanism and dirty water detection mechanism and a cleaning device.

[0038] Cleaning machines are also from AU 2017101723 A4, the

[0039] CN 206687671 U, DE 20 2016 105 300 Ul, US 9,622,637 Bl, CN 205359367 U, US 2017 / 0119225 Al, CN 205181250 U, CN 205181251 U, CN 205181256 U, DE 20 2016 105 299 U, WO 2017 / 059602 Al, WO 2017 / 059600 Al, WO 2017 / 059601 Al, WO 2017 / 059603 Al or DE 20 2016 105 301 Ul.

[0040] The unpublished DE 10 2022 102 924.7 discloses a floor cleaning device comprising a floor head and at least one cleaning roller, which rotates about a rotation axis during operation of the floor cleaning device. The at least one cleaning roller is held at least partially on the floor head by a holding device, the holding device being removable from the floor head together with the at least one cleaning roller. This document is incorporated by reference in its entirety. Further floor cleaning devices are disclosed in the unpublished DE 10 2022 102 937.9 and DE 10 2022 102 918.2, which are incorporated by reference in their entirety.

[0041] Further floor cleaning devices are disclosed in CN 207850637 U and WO 21248591 A1. The invention is based on the object of providing a floor cleaning device of the type mentioned above, which delivers optimized cleaning results while being easy to use.

[0042] This object is achieved according to the invention in the floor cleaning device mentioned at the outset in that the pivot bearing device comprises a first pivot bearing which is fixedly arranged on the floor head and is positioned on the receiving shaft, that the pivot bearing device has a second pivot bearing which is arranged on a cover for the receiving shaft, wherein the cover is movable relative to the floor head, and wherein, during operation of the floor cleaning device, the at least one cleaning roller is rotatably mounted on the first pivot bearing and the second pivot bearing as an abutment to the first pivot bearing, and that the at least one cleaning roller is removable from the cover.

[0043] Due to the rotational mounting of the at least one cleaning roller on the first pivot bearing and the second pivot bearing as a counterbearing, the cleaning roller can be provided with a relatively long length. This allows a relatively large area of ​​the floor to be cleaned to be cleaned.

[0044] At least one cleaning roller is positioned in the receiving shaft on the base head. This shaft is closed by the cover, which holds the at least one cleaning roller in position and also provides a corresponding pivot bearing via the second pivot bearing.

[0045] By moving the cover toward the base head, the receiving shaft can be opened, and the at least one cleaning roller can be easily removed. The mobility of the cover toward the base head, allowing the receiving shaft to be opened by moving the cover, can be achieved by a movable arrangement (movable mounting) of the cover on the base head and / or by a complete removal (separation) of the cover from the base head. The movable mounting of the cover on the base head can, for example, be a pivot bearing and / or a sliding bearing.

[0046] In principle, it is also possible for at least one cleaning roller to be removed if it is held by the cover. This eliminates the need for the operator to touch it.

[0047] The cover on the receiving shaft allows, for example, at least one cleaning roller to be removed even when the floor cleaning device is on a floor station.

[0048] The fact that the cleaning roller can be removed from the lid makes cleaning the cleaning roller itself easier. After removing the lid, it can be cleaned, for example, in a washing machine—without the lid.

[0049] The cover in the solution according to the invention is a part of the floor head, which is movable relative to the floor head, and is not a part of the at least one cleaning roller.

[0050] The solution according to the invention can be implemented on various machine types. It can be implemented on floor cleaning devices that have a blower device for extracting a dirty fluid, in particular from the at least one cleaning roller. It can be implemented on floor cleaning devices that do not have a blower. It can be implemented on floor cleaning devices that have a support rod device for guiding a standing user across a floor to be cleaned. It can be implemented on a self-propelled and self-steering floor cleaning device (cleaning robot).

[0051] It is advantageous if the direction of removal of the at least one cleaning roller from the receiving shaft is at least approximately parallel to the rotation axis. This allows for easy removal and insertion of the at least one cleaning roller into the receiving shaft by coupling it to the pivot bearing device. Furthermore, this results in a simple design of the base head.

[0052] It is particularly advantageous if a receiving chamber for the dirt fluid tank is arranged on the base head, wherein, with respect to a first width direction transverse to the rotation axis, the receiving chamber is arranged next to the receiving shaft for the at least one cleaning roller. This allows the dirt fluid released by the at least one cleaning roller to be coupled directly and, in particular, without the need for a fan, into the dirt fluid tank in the receiving chamber. The receiving chamber also makes it possible, for example, to remove the dirt fluid tank from the side of the base head. This results in easy operation.

[0053] It is particularly advantageous if the dirt fluid tank can be removed from the receiving chamber in a direction that is at least approximately parallel to the rotation axis. This allows for easy removal and insertion of the dirt fluid tank on the floor head. For example, the dirt fluid tank can be inserted into the receiving chamber in a drawer-like manner and removed from it. The dirt fluid tank can also be removed, for example, when the floor cleaning device is standing on a floor station.

[0054] It is advantageous if at least one of the following is provided: the at least one cleaning roller can be removed from the receiving shaft on a lateral first side of the floor head; the dirty fluid tank can be removed from the receiving chamber on a lateral first side of the floor head; the dirty fluid tank and the at least one cleaning roller can be removed from the floor head on the same side, which is in particular a lateral side; the dirty fluid tank and the at least one cleaning roller can be removed from the floor head independently of one another and / or inserted into the floor head; a removal direction of the dirty fluid tank from the floor head and a removal direction of the at least one cleaning roller from the floor head are parallel to one another.

[0055] If the at least one cleaning roller can be removed from the receiving shaft on a lateral first side of the floor head, this results in easy removal or insertion of the at least one cleaning roller on the floor head.

[0056] Accordingly, the dirt fluid tank can then be easily inserted into or removed from the floor head.

[0057] If the dirt fluid tank and at least one cleaning roller can be removed from the same side and, for example, in parallel directions, this results in a structurally advantageous design. The corresponding floor head can be easily manufactured. If, for example, the floor cleaning device is mounted on a floor station, the dirt fluid tank and the cleaning roller can also be easily removed and inserted.

[0058] It is advantageous if a torque transmission device is arranged on the base head, which transmits a torque for the drive motor to the at least one cleaning roller, wherein the torque transmission device comprises an output element with at least one of the following: the output element is seated on the base head; the output element is positioned on the first pivot bearing; the output element forms the first pivot bearing; the output element is positioned closer to a second lateral side of the base head than to a lateral first side, wherein the lateral first side faces away from the lateral second side and the cover is positioned on the lateral first side and / or the at least one cleaning roller can be removed via the lateral first side.

[0059] This makes it easy to drive at least one cleaning roller in its rotary motion. This results in a compact design of the floor head. A relatively long cleaning roller can be used.

[0060] In a structurally simple embodiment, the second pivot bearing comprises a rolling bearing (such as a ball bearing) or a plain bearing. This allows for an optimized abutment to be easily formed.

[0061] In particular, the cover is movable with the separation of the at least one cleaning roller from the floor head, and / or the cover is removable from the floor head with at least one cleaning roller attached to it. In particular, a corresponding selection option is available for an operator. If the cover is removable from the floor head with at least one cleaning roller attached to it, removal can occur, for example, without the operator having to directly touch a contaminated cleaning roller.

[0062] In particular, it is provided that the cover is movably connected to the base head and / or removable from the base head. If the cover is movably connected to the base head, it is movably connected to the base head, for example, via a pivot bearing and / or a sliding bearing. If the cover is removable from the base head, it can be separated from the base head as a whole.

[0063] It is advantageous if the receiving shaft for the at least one cleaning roller is open to a front side of the floor head, with at least one of the following: a front end of the floor head lies on the at least one cleaning roller; the at least one cleaning roller projects beyond the receiving shaft at the front side; the receiving shaft is open to a mounting plane of the floor head.

[0064] This allows for cleaning close to the edges. At least one cleaning roller can be moved up to a side edge of the floor to be cleaned and can even touch the side edge.

[0065] In particular, the cover is removably attached to a lateral side of the floor head. This allows the receiving shaft to be easily opened and closed, and the cleaning roller can be easily removed from or inserted into the floor head. A cleaning roller can then be easily removed after a cleaning cycle, for example, to be washed in a washing machine.

[0066] It is advantageous to provide a fixing device by which the cover is removably fixed to the base head, with the cover in particular being removable from the base head as a whole. This also allows the abutment to be easily connected to the base head via the cover, enabling secure pivoting of the cleaning roller during cleaning operations.

[0067] In a structurally advantageous embodiment, at least one of the following is provided: the fixing device comprises a positive connection and / or a non-positive connection (such as a magnetic connection); the fixing device comprises at least one movable fixing element which is movable via operator intervention.

[0068] This makes it easy to fix the lid to the base head and then remove it.

[0069] It is advantageous if (i) at least one pin is arranged on the cover and an associated recess for the pin to be inserted is arranged on the base head, and / or (ii) at least one pin is arranged on the base head and an associated recess for the pin to be inserted is arranged on the cover. The pin and the recess provide additional fixation of the cover to the base head. In particular, a torque (due to rotation of the cleaning roller on the pivot bearing device) can be absorbed and dissipated.

[0070] Furthermore, it is advantageous if at least one of the following is provided: the at least one pin is positioned offset in a transverse direction to the axis of rotation; the at least one pin has an extension of

[0071] (i) in an insertion direction of the cover on the base head; and / or (ii) in an insertion direction of the at least one cleaning roller on the receiving shaft; and / or

[0072] (iii) parallel to the axis of rotation.

[0073] This makes it relatively easy to achieve torque dissipation during operation of the floor cleaning machine with a removable cover. Furthermore, the cover can be easily inserted and removed from the floor head.

[0074] It is advantageous if the receiving chamber for the dirty fluid tank and the receiving shaft for the at least one cleaning roller are arranged directly one after the other in a first width direction, which is transverse to the rotation axis. This minimizes the flow path between the at least one cleaning roller and the receiving chamber containing the dirty fluid tank, and thus the dirty fluid tank. This allows the dirty fluid released from the at least one cleaning roller to be coupled directly into the dirty fluid tank in a simple manner and, in particular, without the need for a fan.

[0075] It is particularly advantageous if a scraper device is provided, which is located on the floor head and, for example, on a hairpin device or the dirt fluid tank and scrapes dirt fluid from the at least one cleaning roller during operation of the floor cleaning machine. A discharge device is provided, which is arranged on the dirt fluid tank and at which the dirt fluid scraped off during operation of the floor cleaning machine is coupled into the dirt fluid tank without the need for a fan. This allows, for example, the floor cleaning device according to the invention to be operated in an energy-saving manner.

[0076] It is also advantageous to provide at least one sweeping element that acts on coarse dirt on the floor to be cleaned and presents it to the at least one cleaning roller for collection. This results in an optimized cleaning result. The at least one sweeping element is arranged, for example, on the dirt fluid tank.

[0077] In particular, it is provided that the at least one cleaning roller is rotatably mounted between the first pivot bearing and the second pivot bearing and is suspended, so to speak, between these two pivot bearings. This allows the use of a relatively long cleaning roller.

[0078] A cleaning fluid tank is provided, which supplies cleaning fluid to the at least one cleaning roller and / or a floor to be cleaned via a nozzle device. Cleaning fluid, which is applied directly to the floor to be cleaned and / or to the floor via a moistened cleaning roller, moistens dirt on the floor and thus facilitates its removal.

[0079] It is then particularly advantageous if at least one of the following is provided: the cleaning fluid tank is positioned on the floor head or on a holding rod device; a supply device for cleaning fluid is provided, via which cleaning fluid flows from the cleaning fluid tank to the nozzle device; a valve and / or a pump is arranged on the cleaning fluid tank or a supply device for cleaning fluid to the nozzle device.

[0080] This results in an optimized cleaning result. It can be provided that the dirty fluid tank has a first region and a second region connected to the first region, wherein the second region has a greater width in the second width direction than the first region, and that the second region is positioned between the drive motor and the at least one cleaning roller, and the first region is positioned in front of a first end face of the drive motor with respect to the second width direction.

[0081] This solution results in optimized use of space at the floor head. A dirt fluid tank with a large capacity can be installed and stored on the floor head to save space.

[0082] The second area provides optimized coupling capability and, in particular, fan-free coupling capability of dirt fluid from the at least one cleaning roller unit.

[0083] The second region follows the drive motor with respect to the first width direction and is thus positioned between the drive motor and the at least one cleaning roller. It forms a sort of finger that is immersed in a region between the drive motor and the at least one cleaning roller.

[0084] It is advantageous if the first area follows the second area in the first width direction. This results in optimized space utilization while optimizing the coupling of contaminating fluid.

[0085] It is particularly advantageous if the direction of insertion of the dirty fluid tank on the base head is at least approximately parallel to the second width direction. This results in easy removal and insertion of the dirty fluid tank on the base head for an operator. Furthermore, space is optimized. It is also advantageous if a torque transmission device is provided for transmitting torque from the at least one drive motor to the at least one cleaning roller, which bridges a distance between the drive motor and the at least one cleaning roller in the first width direction and which is torque-effectively coupled to the drive motor in the region of a second end face of the drive motor, wherein the second end face of the drive motor faces away from the first end face. This results in optimized space utilization.At least one cleaning roller can be operated with optimized speeds and optimized torque.

[0086] Furthermore, it is advantageous if at least one of the following is provided: the first region has a width in the first width direction that is greater than a width of the second region in the first width direction; a maximum width of the dirty fluid tank in the second width direction corresponds to a maximum width of the second region in the second width direction; a maximum width of the dirty fluid tank in the first width direction corresponds to the sum of a width of the first region in the first width direction and a width of the second region in the first width direction; the dirty fluid tank has an L-shape with a first arm, which is the second region, and a second arm, which is the first region, wherein the first arm and the second arm lie transversely and in particular perpendicular to one another; the first region and the second region are integrally connected to one another;the first region and the second region define a common receiving volume for dirty fluid of the dirty fluid tank; a width of the second region in the second width direction is at least 60% and in particular at least 70% of a total width of the bottom head in the second width direction; a width of the second region in the second width direction is at least 1.5 times, in particular at least 2 times, and in particular at least 2.5 times a width of the first region in the second width direction.

[0087] This results in a space-saving arrangement of the dirty fluid tank at the base head. The dirty fluid tank can be designed with a large storage volume. The first and second areas can define a contiguous storage space for dirty fluid, or a plurality of storage spaces can be provided.

[0088] It is particularly advantageous if the first and second areas define a free space in which, with the dirt fluid tank attached to the base head, the drive motor is at least partially arranged. In particular, the free space has a hollow cuboid shape. This results in optimized space utilization.

[0089] In particular, the free space when the dirty fluid tank is mounted on the base head, facing away from the first area of ​​the dirty fluid tank, is limited by a torque transmission device. This results in optimized space utilization. The base head can be designed compactly.

[0090] It is particularly advantageous if an orifice device is arranged in the second region, via which dirty fluid from the at least one cleaning roller can be coupled, in particular without a fan, into an interior of the dirty fluid tank, in particular with at least one of the following: a length of the orifice device in the second width direction is at least 80% of a length of the at least one cleaning roller along the rotation axis of the at least one cleaning roller; in the region of the orifice device, a scraper device is provided, by means of which dirty fluid can be detached from the at least one cleaning roller and fed to the dirty fluid tank; a hairpin device is arranged on the base head, by means of which hair from the at least one cleaning roller can be picked up.

[0091] This results in a compact design and optimized cleaning results.

[0092] In one embodiment, the stripping device is arranged on a hairpin device.

[0093] A drive shaft of the drive motor has a drive shaft rotation axis, preferably with at least one of the following: the drive shaft rotation axis is oriented parallel to the rotation axis of the at least one cleaning roller; the drive shaft rotation axis is parallel to the second width direction; the drive shaft rotation axis is transverse and in particular perpendicular to the first width direction; a removal direction of the dirt fluid tank from the floor head is at least approximately parallel to the drive shaft rotation axis; a removal direction of a battery device from the floor head is transverse and in particular perpendicular to the drive shaft rotation axis.

[0094] This results in a compact design of the floor head. A dirt fluid tank with a high capacity for dirt fluid can be implemented.

[0095] It is advantageous if a battery device is arranged on the floor head, in particular in a removable manner, in particular with at least one of the following: with respect to a height direction perpendicular to a setup plane of the floor head on a floor to be cleaned, the battery device and / or a receptacle for the battery device is positioned above the dirty fluid tank and / or the drive motor and / or the at least one cleaning roller and / or a partition wall on the floor head and in particular the receptacle and / or the battery device protrudes above the dirty fluid tank; a removal direction of the battery device from the floor head is transverse and in particular perpendicular to the second width direction; a removal direction of the battery device from the floor head is at least approximately parallel to the first width direction; the battery device can be removed from a rear side of the floor head;the dirt fluid tank is positioned, relative to the first width direction, between one end of the battery device and the at least one cleaning roller on the floor head;

[0096] This results in a space-saving design. The mount and battery assembly can be easily protected from contaminants.

[0097] It is further advantageous if a receiving slot for the battery device has an insertion opening facing the rear side of the floor head, with the rear side facing away from the front side of the floor head, and the at least one cleaning roller positioned in the area of ​​the front side of the floor head. This allows a battery device to be accommodated on the floor head at a maximum distance from the at least one cleaning roller. This provides good protection against splash water, contaminating fluids, and so on. The floor head, in turn, can be manufactured in a simple manner.

[0098] It is advantageous if a receptacle for the battery device and / or the battery device is arranged adjacent to the first region of the dirty fluid tank, in particular with at least one of the following: one end of the receptacle for the battery device and / or one end of the battery device is located above the dirty fluid tank and in particular above the first region with respect to a height direction of the floor head; with respect to the second width direction, the receptacle for the battery device and / or the battery device is positioned offset from the drive motor; with respect to the second width direction, the receptacle for the battery device and / or the battery device is positioned offset from a torque transmission device; with respect to the first width direction, the receptacle for the battery device and / or the battery device is positioned offset from the drive motor;With respect to the first width direction, the receptacle for the battery device and / or the battery device is positioned offset from a torque transmission device; With respect to a height direction of the floor head, the receptacle for the battery device and / or the battery device is positioned offset from the dirt fluid tank on the floor head.

[0099] This results in a compact design. The battery unit can be integrated into the floor head to save space. A relatively low height of the floor head can be achieved. This, in turn, allows for easy access under furniture and the like.

[0100] By arranging the mount accordingly, a moment compensation at the base head can also be achieved with an optimized center of gravity positioning.

[0101] In particular, the at least one cleaning roller is removably mounted on the floor head, with at least one of the following: the at least one cleaning roller is removable from the same side of the floor head as the dirty fluid tank; the at least one cleaning roller is removable via a lateral side of the floor head, which lies between a front side and a rear side of the floor head; a removal direction of the at least one cleaning roller from the floor head and a removal direction for removing the dirty fluid tank from the floor head are at least approximately parallel; the at least one cleaning roller and the dirty fluid tank are independently removable from the floor head and / or insertable onto the floor head.

[0102] This results in a compact design of the floor head. The cleaning roller and the dirt fluid tank can be easily removed via a lateral side. For example, this allows at least one cleaning roller and the dirt fluid tank to be removed even when the floor cleaning device is standing on a floor station.

[0103] In particular, it is provided that the floor head has a first chamber and a second chamber, that a partition wall is provided which spatially separates the first chamber and the second chamber from one another, that the drive motor is arranged in the first chamber and the at least one cleaning roller is arranged on or in the first chamber, and that electronic components and / or at least one valve and / or a pump and / or a battery device are arranged in the second chamber.

[0104] This solution provides a partition wall that divides the base head into a first part containing the first chamber and a second part containing the second chamber, providing a spatial separation. This allows functional components exposed to contaminant fluid to be separated from components that may only be exposed to contaminant fluid to a small extent, such as electronic components.

[0105] The partition wall allows the second chamber to be separated from the first chamber in a fluid-protected manner. In particular, this provides splash protection for the second chamber. In principle, it is possible for the partition wall to be fluid-tight. In an advantageous embodiment, the partition wall is not completely fluid-tight and comprises one or more (small) openings towards the first chamber so that liquid accumulating in the second chamber can flow away. However, the at least one opening is arranged and designed such that substantial fluid protection (protection against the penetration of media) of the second chamber is achieved by the partition wall, and in particular splash protection.

[0106] Advantageously, it is provided that when the floor cleaning device is in operation, at least in a partial area, an interior of the first chamber is exposed to dirt and / or liquid, and that the second chamber is protected against the ingress of dirt and liquid by the partition wall. This allows a separation, so to speak, into a clean area and a dirty area, with the clean area being protected from fluid by the second chamber. This fluid protection can be an encapsulation with a fluid-tight partition wall, or it can at least be protection against splash water and the like, for example with small openings in the partition wall, which prevent an accumulation of liquid in the second chamber by allowing liquid to drain through such openings. This allows, for example, electronic components to be arranged in the second chamber.

[0107] It is advantageous if the floor head is assigned a mounting plane for installation on a floor to be cleaned, with at least one of the following: the dividing wall between the first chamber and the second chamber is oriented at least in part transversely to a normal of the mounting plane; the second chamber is arranged above the first chamber with respect to a height direction which is perpendicular to the mounting plane.

[0108] The partition wall divides the base head into a lower and an upper section. This allows for optimized positioning of the corresponding components while simplifying the manufacture of the base head.

[0109] It is advantageous if at least one of the following is provided: the second chamber is closed; the first chamber is open at least in a partial area and in particular towards the at least one cleaning roller.

[0110] This results in an optimized cleaning result with a simple structure.

[0111] Furthermore, it is advantageous if at least one of the following is provided: the first chamber comprises a receiving chamber for a dirt fluid tank; the first chamber comprises a receiving shaft for the at least one cleaning roller and / or the receiving shaft is arranged on the first chamber.

[0112] The area around a dirty fluid tank is generally exposed to dirty fluid. The arrangement on or in the first chamber, including the receiving shaft, results in a compact design with easy manufacturing. Electronic components and the like in the second chamber can be optimally protected. It is advantageous if the second chamber is closed by a first cover. This results in easy manufacturing.

[0113] It is then advantageous if at least one of the following is provided: the first cover is permanently fixedly connected to the base head; the first cover closes the second chamber upwards with respect to a height direction; the first cover at least partially forms an upper side of the base head; the first cover is designed in several parts or with several regions.

[0114] This results in a compact design of the base head and easy manufacture.

[0115] It is advantageous if the second chamber and / or a first cover of the second chamber has a recess, bulge, or depression that has a recessed area relative to the top of the base head. If a support rod device is arranged on the base head, then a small pivot angle (relative to a mounting plane of the base head) can be achieved via the recess, bulge, or depression when the support rod device is pivotable. This results in optimized underride capability.

[0116] Furthermore, it is advantageous if at least one of the following is positioned on the recessed area: at least one holder for a cleaning roller; a holder for a holding rod device; a joint device for a holding rod device, via which the holding rod device is pivotally held relative to the floor head.

[0117] The positioning of the cleaning roller holder results in optimized space utilization. When the floor cleaning device is not in use, the cleaning roller can be held on the holder, for example, for drying. The positioning of the joint device or the holder for a support rod device (for operation by a standing operator) allows for a small pivot angle, allowing optimal clearance for furniture and the like.

[0118] In particular, the floor head has a first width direction transverse to the rotation axis and a second width direction parallel to the rotation axis, with at least one of the following: the recess or bulge or depression extends along the first width direction and has an extension in the second width direction; the recess or bulge or depression is open to a front side and / or a rear side of the floor head; a receptacle for a battery device and / or a battery device is arranged next to the recess or bulge or depression with respect to the first width direction; the at least one cleaning roller is arranged in front of the recess or bulge or depression with respect to the first width direction;A scraper device for scraping dirt fluid from the at least one cleaning roller and / or a hairpin device for receiving hair is arranged in front of the recess or bulge or depression relative to the first width direction; a third chamber is arranged in front of the recess or extension or depression relative to the first width direction.

[0119] If the recess is open to a front and / or rear side of the base head, then liquid (such as dirty fluid) that accumulates there can drain away.

[0120] By arranging the battery unit mount or battery unit next to the recess, bulge, or depression, space is optimized. For example, this also allows for torque compensation in conjunction with the drive motor.

[0121] If the at least one cleaning roller is arranged in front of the recess or bulge or depression with respect to the first width direction, an optimized use of space is achieved.

[0122] If a scraper device for scraping off dirty fluid and / or a hairpin device is arranged in front of the recess or bulge or depression, an optimized use of space is achieved.

[0123] In particular, a third chamber is provided. This can be used, for example, to remove and clean a hairpin device.

[0124] In one embodiment, a third chamber is arranged on the base head, with the second chamber being sealed fluid-tight from the third wall by a wall or another wall. The third chamber is, for example, openable. A hairpin device, for example, is removably arranged in the third chamber, which can be removed for cleaning and then reinserted.It is advantageous if at least one of the following is provided: the third chamber is arranged in front of the second chamber in the direction of the at least one cleaning roller; the third chamber is arranged above at least a partial region of the at least one cleaning roller in relation to a height direction; a scraper device for scraping dirt fluid from the at least one cleaning roller and / or a hairpin device is positioned on the third chamber in particular in a removably manner; the third chamber is closed by a removable second cover, in particular with at least one of the following: the second cover at least partially forms an upper side of the base head; the second cover is flush with a first cover of the second chamber; the second cover is removable from the base head in a direction transverse to the axis of rotation.

[0125] Providing the third chamber with at least one of the aforementioned features results in optimized space utilization. A scraper device and / or hairpin device can be easily removed for cleaning.

[0126] The second cover creates a closed surface for the floor head. It is particularly advantageous if the partition wall has a first section that separates the first chamber from the second chamber in a splash-proof manner. This results in a space-saving design with a separation of functional components that may be exposed to contaminants from components that must not be "systematically" exposed to contaminants.

[0127] In particular, the partition wall has a second region, or a further partition wall is provided, which separates the second chamber from a third chamber in a fluid-tight manner, wherein the second region or the further partition wall is oriented transversely and in particular perpendicularly to the first region. This allows the second chamber to be designed to be splash-proof, allowing electronic components and the like to be protected there. The third chamber arranged adjacent to it results in a space-saving design.

[0128] In particular, the first section forms a floor for the third chamber, resulting in a space-saving design.

[0129] In one embodiment, the floor head comprises a structural support on which the partition wall is formed or arranged, wherein the structural support holds at least one of the following: the drive motor; a torque transmission device which serves to transmit torque for the drive motor to the at least one cleaning roller; a dirt fluid tank which is in particular removable from the floor head; a battery device or a receptacle for a battery device; a valve and / or a pump; the electronic components; a holding rod device; at least a part of a pivot bearing device for the at least one cleaning roller; a support device for supporting the floor head on a floor to be cleaned; a blower device.

[0130] This results in an optimized structure and the number of structural components can be kept low.

[0131] In one embodiment, the structural support is designed as a support plate or comprises a support plate. This allows the base head, in particular, to be designed with low height dimensions to ensure good accessibility under furniture or the like.

[0132] In one embodiment, the partition wall has at least one recess or at least one bulge or at least one depression in which functional components are located. This allows the storage volume to be increased. This, in turn, results in a space-saving design, particularly with regard to height dimensions. This, in turn, enables good accessibility under furniture or the like. In particular, the at least one recess or at least one bulge or at least one depression is outside an area in which a dirty fluid tank is positioned and, in particular, outside a receiving chamber for the dirty fluid tank. This allows the dirty fluid tank to be designed with a large storage volume for dirty fluid.

[0133] It is advantageous if at least one of the following is provided: the partition wall has a first recess or a first bulge or a first depression, on which at least some of the electronic components are seated; the partition wall has a second recess or a second bulge or a second depression, on which a battery device and / or receptacle for a battery device is seated; the partition wall has a third recess or a third bulge or a third depression, on which the solenoid valve is seated.

[0134] This results in optimized use of space, especially for the second chamber.

[0135] It is also advantageous if at least one of the following is provided: the at least one recess, at least one bulge, or at least one depression points into the first chamber and increases the storage volume of the second chamber. This results in optimized space utilization.

[0136] It is advantageous if a dirt fluid tank is positioned between the first recess or first bulge or first depression and the at least one cleaning roller and / or between the second recess or second bulge or second depression and the at least one cleaning roller. This results in optimized space utilization.

[0137] It is also advantageous if the partition wall has a further recess or bulge, which is arranged vertically above the drive motor and / or a torque transmission device. In particular, this further recess or bulge increases the receiving volume of the first chamber. This allows for a space-saving design of the base head with optimized use of the available space.

[0138] It is advantageous if the partition wall extends from the rear end of the floor head to at least one cleaning roller. This results in a simple structure and easy manufacture.

[0139] For the same reason, it is advantageous if the partition wall extends between opposite lateral sides of the base head.

[0140] In one embodiment, the floor cleaning device according to the invention is designed as a hand-held floor cleaning device with a support rod device pivotably mounted on the floor head. An operator standing on the floor to be cleaned can then guide the floor cleaning device across the floor to be cleaned while standing.

[0141] Alternatively, the floor cleaning device can also be designed as a self-propelled and self-steering floor cleaning device ("cleaning robot").

[0142] The following description of preferred embodiments serves, in conjunction with the drawings, to explain the invention in more detail. Figure 1 shows a perspective view of an inventive

[0143] Floor cleaning device parked at a ground station with the cleaning roller removed;

[0144] Figure 2 is a perspective view of a base head of the

[0145] Floor cleaning machine according to Figure 1, with a cover removed;

[0146] Figure 3 shows a further view of the floor head of the floor cleaning device according to Figure 1 with the cleaning roller inserted and the dirt fluid tank partially inserted;

[0147] Figure 4 shows a further view of the floor head of the floor cleaning device according to Figure 1 with the cleaning roller removed;

[0148] Figure 5 Components of the base head in their relative arrangement to each other;

[0149] Figure 6 is a perspective top view of the bottom head of the

[0150] Floor cleaning device according to Figure 1 with a removed cover for an abutment of a rotary bearing device;

[0151] Figure 7 shows the floor head of the floor cleaning device according to Figure 1 on a floor to be cleaned;

[0152] Figure 8 shows the same view of the base head as in Figure 7 with parts removed;

[0153] Figure 9 is a sectional view taken along line 9-9 of Figure 8;

[0154] Figure 10 is a bottom view of the base head according to Figure 7 with parts removed; Figure 11 is an enlarged view of area A according to Figure 2 with the cover removed;

[0155] Figure 12 is an exploded view of the cover according to Figure 11;

[0156] Figures 13, 14 show different sectional views of a partial area of ​​the base head to which the lid according to Figure 11 is fixed;

[0157] Figure 15 is a sectional view parallel to the line 15-15 according to Figure

[0158] 6;

[0159] Figure 16 is an enlarged view of area B according to Figure

[0160] 15; and

[0161] Figure 17 is an exploded view of the floor head of the floor cleaning device according to Figure 1 (with cleaning roller), without dirt fluid tank and with the cover for the rotary bearing device removed.

[0162] An embodiment of a floor cleaning device 20 according to the invention, which is shown in Figures 1 to 17, comprises a floor head 22. A support rod device 24 is held on the floor head 22. The support rod device 24 is connected to the floor head 22 via a joint device 26. This will be explained in more detail below. The joint device 26 allows the support rod device 24 to pivot about (at least) one pivot axis 28 (see Figure 6) relative to the floor head 22 and thus also relative to a floor 30 to be cleaned (see Figure 7).

[0163] The holding rod device 24 has a proximal

[0164] End 32 and a distal end 34. At or near the distal end 34, the support rod device 24 is pivotally connected to the base head 22 via the joint device 26 about the pivot axis 28.

[0165] The support rod device 24 is designed, particularly with respect to its length between the proximal end 32 and the distal end 34, so that an operator standing on the floor 30 to be cleaned can guide the floor cleaning device 20 while standing over the floor 30 to be cleaned. The size can be adjusted to suit the operator by pivoting about the pivot axis 28.

[0166] For this guidance over the floor, a bracket 36 is arranged in the region of the proximal end 32 on the holding rod device 24, via which an operator can grip and guide (push and pull) the floor cleaning device 20 during operation (when guiding it over the floor 30 to be cleaned).

[0167] In one embodiment, the bracket 36 is designed in the form of a closed loop.

[0168] In one embodiment, operating elements and / or display elements 38 are arranged on the support rod device 24 and in particular on the bracket 36. An operating element is, for example, an on / off switch. For example, an adjustment of the cleaning fluid supply (in particular, the quantity) to a cleaning roller can also be provided. A display element is, for example, a display indicating the on or off state of the operating device 20 or the amount of water supplied.

[0169] In one embodiment, operating elements and display elements are integrated.

[0170] The support rod device 24 comprises a rod 40 with a longitudinal axis 42. The bracket 36 protrudes from the longitudinal axis and points in particular to a rear side 44 of the floor head 22. During proper operation of the floor cleaning device 20 and guidance over the floor 30 to be cleaned, an operator stands behind the rear side 44 with respect to a forward direction 46 (see Figure 7) when guiding the floor cleaning device 20 over the floor 30 to be cleaned.

[0171] The pivot axis 28 is oriented transversely and in particular perpendicularly to the longitudinal axis 42 of the rod 40.

[0172] A body 48 is located on the support rod assembly 24 in the region of the proximal end 32. The body 48 is pivotable about the pivot axis 28 with the support rod assembly 24. A cleaning fluid tank 50 is removably mounted on the body 48. The cleaning fluid tank 50 serves to hold a cleaning fluid. The cleaning fluid can be pure water or a mixture of pure water with a cleaning agent, in particular a surfactant-based cleaning agent.

[0173] In one embodiment, the cleaning fluid tank 50 has opposing cheeks 52a, 52b, between which a recess 54 is formed. When the cleaning fluid tank 50 is seated on the support rod assembly 24 and thereby on the rod 40, the rod 40 is immersed in the recess 54 between the cheeks 52a, 52b.

[0174] In particular, the cleaning fluid tank 50 and the body 48 do not extend beyond the rod 40 to a front side 56 of the base head 22. The front side 56 of the base head 22 faces away from the rear side 44.

[0175] In one embodiment, the height of the combination of body 48 and cleaning fluid tank 50 in the longitudinal axis 42 is at most 50% of the corresponding height of the rod 40 along the longitudinal axis 42 between the joint device 26 and the bracket 36. In particular, the total height of the combination of body 48 and cleaning fluid tank 50 is at most 33% of the said total length.

[0176] The body 48 and the cleaning fluid tank 50, which is located on the body 48, protrudes beyond the rod 40 to the rear side 44.

[0177] During operation of the floor cleaning device 20, the support rod assembly can be pivoted about the pivot axis 28 within a pivot range 58 (see Figure 6), which lies between a minimum angle and a maximum angle. The minimum angle of the pivot range 58 is defined by the body 48 or the cleaning fluid tank 50 striking the floor head 22. Alternatively, a corresponding locking element can be provided in front of the stops.

[0178] The floor head 22 is assigned a mounting plane 60. This is explained in more detail below. When the floor head 22 rests on a flat floor 30 to be cleaned, this mounting plane 60 coincides with the floor 30.

[0179] The minimum angle mentioned is small relative to the installation plane 60. In relation to the angle between the longitudinal axis 42 and the installation plane 60, it is, for example, in the range between 0° and 10°.

[0180] The maximum angle of the pivoting range 58 is the angle between the installation plane 60 and the longitudinal axis 42 of the holding rod device 24 in the range between 80° and 110°.

[0181] In a specific example, it is approximately 90°.

[0182] The floor cleaning device 20 is provided with a parking position 62 for the holding rod device 24. This parking position 62 is shown in Figure 1. In this parking position 62, the holding rod device 24 is at the maximum angle of the pivoting range 58 or even outside this maximum angle. The holding rod device 24 is perpendicular to the floor head 22. In the parking position 62, this position of the holding rod device 24 relative to the floor head 22 is secured, so that a certain amount of force is required to pivot the holding rod device 24 out of the parking position 62.

[0183] The parking position 62 can be secured, for example, by a force-fit or positive fit. In one embodiment, a magnetic device is provided, wherein the parking position of the holding rod device 24 relative to the base head 22 is maintained by corresponding magnetic forces. For example, a positive connection such as a snap connection or the like can also be provided.

[0184] In one embodiment, a floor station 64 is assigned to the floor cleaning device 20. The floor station 64 serves to store the floor cleaning device 20 outside of a cleaning operation. The floor cleaning device 20 can be placed on this station with its floor head 22.

[0185] As explained in more detail below, (at least) one cleaning roller 66 is held on the floor head 22 during cleaning operation.

[0186] As will also be explained below, a receptacle 68 for a cleaning roller 66 is arranged on the base head 22. The cleaning roller 66 can be inserted into the receptacle 68 after completion of a cleaning operation in order to dry it and also store it.

[0187] This is shown in Figure 1, with the cleaning roller 66 sitting on the corresponding receptacle 68.

[0188] The base head 22 has a first width direction 70 (see Figure 7). The first width direction 70 extends between the rear side 44 and the front side 56 of the base head 22. The first width direction 70 is at least approximately parallel to the forward travel direction 60.

[0189] Furthermore, the base head 22 has a second width direction 72. The second width direction 72 is transverse and in particular perpendicular to the first width direction 70.

[0190] The first width direction 70 and the second width direction 72 are in particular both parallel to the installation plane 60 of the floor cleaning device 20 (and thus of the floor head 22).

[0191] Furthermore, the base head 22 has a height direction 74. The height direction 74 is perpendicular to the first width direction 70 and perpendicular to the width direction 72. The height direction 74 is also perpendicular to the installation plane 60.

[0192] In one embodiment, the base head 22 has an approximately cuboid shape (relative to its enveloping surfaces), with an extension in a first width direction 70, the second width direction 72 and the height direction 74.

[0193] The base head 22 has a first lateral side 76 and an opposite second lateral side 78. The lateral sides 76, 78 are oriented transversely and in particular at least approximately perpendicularly to the second width direction 72. The lateral sides 76, 78 are oriented at least approximately parallel to the first width direction 70.

[0194] The first lateral side 76 and the second lateral side 78 each connect (spaced apart from one another in the second width direction 72) the rear side 44 to the front side 56 of the base head 22.

[0195] The floor head 22 comprises a structural support 80 (see especially Figure 9). The structural support 80 ensures the structural stability of the floor head 22 and can absorb corresponding forces and torques. Functional components of the floor cleaning device 20 are directly or indirectly attached to the structural support 80.

[0196] The structural support 80 is designed such that, relative to the height direction 74, it divides the base head 22 into a lower part 82 and an upper part 84. The lower part 82 is closer to the installation plane 60 than the upper part 84.

[0197] In one embodiment, the structural support 80 is plate-shaped and has an extension in the first width direction 70 and the second width direction 72.

[0198] A thickness of the structural support 80 in the height direction 74 is significantly smaller than the extent in the first width direction 70 and the extent in the second width direction 72. (In particular, the thickness of the structural support 80 in the height direction 74 is 5 cm or less.)

[0199] A plate-like shape is considered to be such that the thickness in the height direction 74 is considerably smaller than the corresponding widths in the first width direction 70 and the second width direction 72.

[0200] The structural support 80 includes a partition 86, which provides a spatial separation between the upper part 84 and the lower part 82. The partition 86 can be fixed to the structural support 80 as a spatial partition, or the structural support 80 itself can be configured to form the partition 86 as a partition between the upper part 84 and the lower part 82. The partition 86 also forms a "media partition," which provides fluid protection against the penetration of liquid / contaminated fluid into the upper part 84. The partition 86 follows the shape of the structural support 80.

[0201] In one embodiment, the partition wall 86 and with it the structural support 80 extend from the rear side 44 of the floor head 22 to the cleaning roller 66 in the first width direction 70.

[0202] In the second width direction 72, the partition wall 86 and the structural support 80 extend from the first lateral side 76 to the second lateral side 78 in the second width direction 72.

[0203] It can be provided that the structural support 80 or the partition wall 86 is provided with a covering such as a housing part towards an outer side.

[0204] Relative to a center plane 88 of the partition wall 86 or the structural support 80, these are oriented transversely and, in particular, perpendicularly to the height direction 74. Furthermore, they are oriented at least approximately parallel to the installation plane 60 (see Figure 9).

[0205] A first chamber 90 is arranged on the lower part 82 of the base head 22. A second chamber 92 is arranged on the upper part 84. Furthermore, a third chamber 94 is arranged on the upper part 84 adjacent to the second chamber 92 in the first width direction 70.

[0206] The second chamber 92 is located toward the rear side 44. The third chamber 94 is located toward the front side 56. The third chamber 94 is located, at least in part, above the cleaning roller 66 relative to the vertical direction 74.

[0207] The partition wall 86 ensures a spatial separation of the first chamber 90 and the second chamber 92 from each other and thereby represents fluid protection to largely prevent the penetration of splash water and the like into the second chamber 92. In principle, it is possible for the partition wall 86 to be provided with one or more (small) openings that do not eliminate the splash water protection, but through which, for example, any liquid that has nevertheless penetrated from the second chamber 92 can drain into the first chamber 90.

[0208] The first chamber 90 comprises a floor 96 (see, for example, Figure 15), which closes off the first chamber 90 towards the installation plane 60.

[0209] In one embodiment, the floor 96 is held to the structural support 80 via one or more walls or pillars 98 (see Figure 17).

[0210] The base 96 may alternatively or additionally be part of a housing 100 of the base head 22.

[0211] At least one support element 102 (see Figure 15) is arranged on the base 96 at a distance from the cleaning roller 66. The cleaning roller 66 is located in the region of the front side 56 of the base head 22 or defines this front side. The at least one support element 102 is located in the region of the rear side 44 of the base head 22.

[0212] During cleaning operation, the floor cleaning device 20 is supported on the floor 30 to be cleaned via the cleaning roller 66 and the at least one support element 102. The at least one support element 102 and the cleaning roller 66 define the installation plane 60 for the floor head 22 on the floor 30 to be cleaned.

[0213] One or more (in particular two) support rollers are provided as the support element 102. Alternatively, one or more skids can also be provided. In principle, it is also possible for an additional cleaning roller to form a support element 102 at a distance from the cleaning roller 66.

[0214] A drive motor 104 for rotating the cleaning roller 66 is arranged on the base head 22. The drive motor 104 is an electric motor. It is located in the first chamber 90 on the lower part 82 and is held in particular by the structural support 80 or mounted thereon.

[0215] In one embodiment, the drive motor 104 is located in a central region between the front side 56 and the rear side 44 of the floor head 22 relative to the first width direction 70. In particular, a center of gravity of the floor head 22 (without the holding rod device 24) is on the drive motor 104.

[0216] The drive motor 104 has an extension in the second width direction 72 that is smaller than the extension of the base head 22 in the second width direction 72 (see Figure 5). The drive motor 104 has a first end face 106 and an opposite second end face 108 (see Figure 5). The first end face 106 faces the first lateral side 106. The second end face 108 faces the second lateral side 78. A distance between the first lateral side 76 and the first end face 106 is greater than a distance between the second end face 108 and the second lateral side 78. The base head 22 is assigned a first center plane 110 (see Figure 7). The first center plane 110 is perpendicular to the first width direction 70. The second width direction 72 is parallel to the first center plane 110. The first center plane 110 is located centrally between the front side 56 and the rear side 44 of the base head 22.

[0217] Furthermore, a second center plane 112 (Figure 7) is assigned to the base head 22. The second center plane 112 is perpendicular to the second width direction 72. The first width direction 70 is parallel to the second center plane 112. The second center plane 112 lies centrally between the first lateral side 76 and the second lateral side 78.

[0218] In one embodiment, the drive motor 104 is located on the first center plane 110 (see Figure 5). The second center plane 112 (virtually) divides the base head 22 into a first region 114a between the second center plane 112 and the first lateral side 76, and a second region 114b between the second center plane 112 and the second lateral side 78. The drive motor 104 is located in the second region 114b, and at most a smaller part 104 in the second width direction 72 is located in the first region 114a.

[0219] In one embodiment (Figure 5), the first end face 106 touches the second center plane 112 or is arranged at a distance therefrom in the second region 114b.

[0220] The drive motor 104 includes a drive shaft with a drive shaft rotation axis 116 (Figure 5). The drive shaft rotation axis 116 is parallel to the second width direction 72.

[0221] The drive shaft rotation axis 116 meets (in an imaginary extension) the first lateral side 76 and the second lateral side 78.

[0222] A torque transmission device 118 is arranged on the base head 22 in the region of the second end face 108. The torque transmission device 118 is mounted in particular on the structural support 80.

[0223] The torque transmission device 118 serves to transmit the torque of the drive shaft of the drive motor 104 to the cleaning roller 66.

[0224] The torque transmission device 118 is designed, for example, as a belt transmission.

[0225] The corresponding torque of the drive motor 104 can be transmitted over a path 120 via the torque transmission device 116. The torque transmission device 118 is arranged longitudinally and in particular parallel to the second lateral side 78 on the base head 22.

[0226] It can also be provided that the torque transmission device 118 ensures a reduction in the speed, so that the cleaning roller 66 rotates at a lower speed than the drive shaft of the drive motor 104 during operation of the floor cleaning device 20.

[0227] The torque transmission device 118 comprises an output element 122, via which a corresponding torque is directly coupled into the cleaning roller 66 for its rotation.

[0228] The output element 122 is positioned at a distance from the drive shaft of the drive motor 104.

[0229] The output element 122 is located in particular in the second region 114b and is preferably held by the structural support 80 or a wall of the lateral side 78. The output element 122 rotates about a rotation axis 124.

[0230] The torque transmission device 118 is located in the first chamber 90.

[0231] The output element 122 is at least partially located in the first chamber 90 and projects into a receiving shaft 126 for the cleaning roller 66.

[0232] The cleaning roller 66 comprises a hollow cylindrical carrier 128, in particular made of a plastic material (see, for example, Figure 17). Cleaning material 130 is arranged on the carrier as a facing. In one exemplary embodiment, the cleaning material 130 is a textile material, in particular a microfiber material. In principle, the cleaning material can also be formed by brushes. Furthermore, a combination of textile material and brushes is also possible, for example. In one exemplary embodiment, a handle 129 is arranged on the hollow cylindrical carrier 128 (for example, Figures 1 and 7), via which the cleaning roller 66 can be held and removed by an operator without having to touch the facing, which may be contaminated with dirt.This corresponding handle 129 is in particular integrated into the hollow cylindrical support 128 and is designed such that a driver for a pivot bearing device 132 (see below) is "integrated" or the handle is set back with respect to the driver.

[0233] The carrier 128 is designed on one side so that it can be attached to the output element 122 in the receiving shaft 126 in a rotationally fixed manner.

[0234] The cleaning roller 66 is mounted on the floor head 22 via a pivot bearing device 132 for rotation about a rotation axis 134. The pivot bearing device 132 comprises a first pivot bearing 136 and a second pivot bearing 138 as an abutment. The first pivot bearing 136 is fixedly mounted on the floor head 22 and is arranged at the first chamber 90. The first pivot bearing 136 is formed in particular by the output element 122.

[0235] As mentioned above, the cleaning roller 66 can be attached to the output element 122 in a rotationally fixed manner via the carrier 128.

[0236] The rotation axis 134 of the cleaning roller 66 then coincides with the rotation axis 134 of the output element 122.

[0237] The rotation axis 134 of the cleaning roller 66 is parallel to the second width direction 72 and lies transversely and in particular perpendicularly to the first width direction 70.

[0238] The forward direction 46 is perpendicular to the rotation axis 134 of the cleaning roller 66.

[0239] The rotation axis 134 is in particular parallel to the installation plane 60. The cleaning roller 66 has a first end face 140 and an opposite second end face 142. The cleaning roller 66 is held on the first pivot bearing 136 via its first end face 140. The cleaning roller 66 is held on the second pivot bearing 138 via its second end face 142. The cleaning roller 66 is thus suspended on the pivot bearing device 132 between the first pivot bearing 136 and the second pivot bearing 138.

[0240] The second pivot bearing 138 as an abutment is arranged on a cover 144 (see, for example, Figure 12) and is removable as a whole from the base head 22.

[0241] The cover 144 allows the receiving shaft 126 to be opened and, in particular, removably closed on the first lateral side 76.

[0242] The second pivot bearing 138 is located on the cover 144 and includes a roller bearing 146 and, in particular, a ball bearing (Figure 12). The cleaning roller 66, with its carrier 128, can be inserted into the second pivot bearing 138 via the second end face 142. During operation, the cleaning roller 66 is set in rotation via the output element 122, and the second pivot bearing 138, as an abutment, is a driven bearing that enables rotation about the rotation axis 134 and also supports the cleaning roller 66 at a distance from the first pivot bearing 136 (the output element 122) in the region of the first lateral side 76 of the base head 22.

[0243] The cover 144 is detachable and can be removably fixed to the base head 22 as a whole. Alternatively, it can also be movably connected (non-removable or additionally removable) to the base head 22. For this purpose, for example, a pivot bearing or displacement bearing or a combination thereof is provided. In one embodiment, a pin 148 is arranged on the cover 144. This pin 148 is arranged (when the cover 144 is attached to the base head 22) at a distance from the second pivot bearing 138 and at a distance from the rotation axis 134 of the cleaning roller 66. The pin 148 serves to absorb torques.

[0244] The pin 148 extends parallel to the rotation axis 134 or parallel to the second width direction 72.

[0245] A recess 150 is provided on the base head 22, which is open toward the first lateral side 76. This recess 150 serves to receive the pin 148. The pin can be inserted into the recess 150 in a direction 152 (see, for example, Figure 4).

[0246] The recess 150 is arranged, in particular with respect to the height direction 74, above the receiving shaft 126 in the region of the third chamber 94.

[0247] The lid 144 can be fixed to the base head 22 via a fixing device 154 (see, for example, Figure 12). The fixing device 154 comprises, for example, a spring-supported movable element 156 (see Figures 12 to 15), which can be connected to the base head 22 outside the lid 144 in the manner of a releasable snap connection.

[0248] Figures 13 and 14 show a fixed state in which fixation occurs via the corresponding movable element 156 through positive locking. In an alternative embodiment, a force-locking connection such as a magnetic connection is provided.

[0249] When the cover 144 is fixed to the base head 22, it forms part of the first lateral side 76 (see, for example, Figure 2). Relative to the second center plane 112, the base head 22 is formed asymmetrically in the region of the cleaning roller 66. The base head 22 includes a bridge 158 on the first chamber 90. This bridge 158 accommodates the torque transmission device 118. A width of this bridge 158 in the second width direction 72 is greater than a width of the cover 144 in the second width direction 72.

[0250] The output element 122 protrudes from the bridge 158 (see, for example, Figure 4).

[0251] When the cleaning roller 66 is seated on the base head 22, the receiving shaft 126 is delimited toward the second lateral side 78 by the bridge 158. It is delimited toward the first lateral side 76 by the cover 144.

[0252] Towards the rear side 44 it is limited by a dirty fluid tank 160.

[0253] At the top it is limited by a wall of the third chamber 94.

[0254] The receiving shaft 126 is open downwards towards the installation level 60.

[0255] The cleaning roller 66 projects in this direction on the receiving shaft 126 in order to enable floor cleaning.

[0256] In one embodiment, the receiving shaft 126 is also open toward the front side 56. The cleaning roller 66 protrudes forward from this open area to enable, for example, cleaning close to the edge.

[0257] The cleaning roller 66 can be removed from the receiving shaft 126 in a direction 162 opposite to the direction 152 (see Figure 4) and thus removed from the base head 22. To remove the cleaning roller 66 from the base head 22, the movable element 156 is acted upon, in particular to release the positive connection. The cover 144 (see Figure 4) can then be removed.

[0258] In principle, it is possible to first remove the cover 144 and thereby detach it from the base head 22 and the cleaning roller 66. The cleaning roller 66 can then be removed from the receiving shaft 126 in the opposite direction 162.

[0259] However, it is also possible to remove the cover 144 with the cleaning roller 66 fixed to it in the opposite direction 162 and thereby pull the cleaning roller 66 out of the receiving shaft 126 in the opposite direction 162.

[0260] In principle, it is possible to pull the cleaning roller 66 out of the receiving shaft 126 simply by touching the cover 144, so that, for example, an operator does not have to touch a dirty cleaning roller 66.

[0261] The cleaning roller 66 is fixed to the base head 22 accordingly. To do this, the cleaning roller 66 is first pushed into the receiving shaft 126 (with the cover 144 in place) and is displaced until the cleaning roller 66 is pushed onto the output element 122 at the first end face 140. The cover is then inserted in the direction 152, and the second pivot bearing 138 is also pushed onto the cleaning roller 66.

[0262] Alternatively, the cleaning roller 66 can be pushed onto the second pivot bearing 138 of the cover 144 and with this combination the cleaning roller 66 is then moved into the receiving shaft 126 and is then moved until the cover 144 engages via the fixing device 154.

[0263] The cover 144 is removable from the cleaning roller 66. The cover 144 is part of the floor head 22 and is not integrated into the cleaning roller 66. The cleaning roller 66 can be cleaned (after removing the cover 144), for example, in a washing machine.

[0264] The drive motor 104 and the torque transmission device 118 are located in the first chamber 90. The first chamber 90 also accommodates the cleaning roller 66. The first chamber 90 is closed to the installation plane 60 via the floor 96. It is open toward the front side 56 due to the positioning of the cleaning roller 66.

[0265] The first chamber 90 has a receiving chamber 164 for the dirty fluid tank 160. This will be explained in more detail below.

[0266] In one embodiment, a partition wall 168 is arranged between the receiving chamber 164 for the dirty fluid tank 160 and a receiving space 166 in which the drive motor 104 is located, which partition wall is oriented at least approximately parallel to the height direction 74 and is oriented transversely and in particular perpendicularly to the partition wall 86.

[0267] In principle, at least the receiving chamber 164 can be loaded with dirt, dirty fluid or liquid.

[0268] It is intended that the drive motor 104 and also the torque transmission device 108 are located in the first chamber 90 in a correspondingly protected manner.

[0269] In one embodiment, the bottom 96 (see Figure 17) is designed to be open in the area of ​​the dirty fluid tank 160 when it is seated on the base 22.

[0270] The second chamber 92 has a receiving space 170. The receiving space 170 is fluid-tightly closed at the top (away from the partition wall 86) by a first cover 172. The first cover 172 is permanently connected to the floor head 22. It is not intended that the cover 172 be opened during normal operation of the floor cleaning device 20.

[0271] Components of the cleaning device 10 which are sensitive to liquid and dirty fluid are arranged in the closed chamber 90.

[0272] In particular, electronic components are arranged in the second chamber 92. These are provided, in particular, with a fluid-tight encapsulation. A circuit 174 is positioned in the second chamber 92, which circuit comprises, in particular, a control device.

[0273] Furthermore, a valve such as a solenoid valve 176 (see Figure 17) is arranged in the second chamber 92. Alternatively, a pump may be provided.

[0274] The floor cleaning device 20 comprises a supply device 178 (a partial area is shown in Figure 8), via which cleaning fluid can be supplied from the cleaning fluid tank 50 to a nozzle device 180 on the floor head. The nozzle device 180 is particularly arranged and designed such that cleaning fluid can be supplied to the cleaning material 130 of the cleaning roller 66 via it. This allows the cleaning material to be moistened. The moistened material, in turn, acts on the floor 30 to be cleaned, allowing dirt to be removed more effectively.

[0275] The supply device 178 comprises in particular one or more lines from the cleaning liquid tank 50 to the nozzle device 180.

[0276] The transport of cleaning fluid to the nozzle device 180 from the cleaning fluid tank 50 is gravity-driven. Alternatively, the aforementioned pump or the like may also be provided.

[0277] The solenoid valve 176 serves to control or release the supply of cleaning fluid to the nozzle device 180. The electronic part of the solenoid valve 176 is arranged in the second chamber 92 and can then act accordingly on the supply device 178 outside the first chamber 92.

[0278] In one embodiment, it is provided that the partition wall 86 or the structural support 80 has a first recess or bulge or depression 182 in the direction of the lower part 82. This increases the receiving volume of the receiving space 170.

[0279] The circuit 174 is located in this first recess 182.

[0280] In one embodiment, a second recess 184 is provided, in which a receptacle 186 for a battery device is located.

[0281] Furthermore, a third recess 188 is provided in which the solenoid valve 176 is located (see also Figure 10).

[0282] An opening 190 is positioned at the first recess 182, through which (with appropriate sealing means) cables are passed to the drive motor 104.

[0283] A further bulge 192 (see Figure 8) is arranged on the partition wall 86, which increases the receiving volume of the first chamber 90. This bulge 192 points upward into the upper part 84 and is arranged in the area of ​​the drive motor 104 in order to accommodate it in a space-saving manner.

[0284] In principle, a corresponding bulge can also be provided for the torque transmission device 118.

[0285] Through the recesses 182, 184, 188, 192 the space at the

[0286] Use the floor head 22 in an optimized manner to keep the overall height of the floor head 22 in the height direction 74 low and thus to enable good accessibility under furniture and the like.

[0287] The second chamber 92 is spatially separated from the third chamber 94 by a partition wall 194 (see Figures 15 and 17). This partition wall 194 is positioned on the partition wall 86 or is part of it. With regard to fluid protection, this creates a first region formed by the partition wall 86 and oriented transversely to the vertical direction 74. A second region with the wall 194 is present, which is at least approximately parallel to the vertical direction 74.

[0288] The receptacle 186 for a battery device 196 is located in the second chamber 92. The receptacle 186 for the battery device 196 is open toward the rear side 44. The battery device 196 can be inserted into or removed from the receptacle 186 via the rear side 44. The receptacle 186 extends parallel to the first width direction 70.

[0289] An insertion or removal direction 198 for the battery device 196 at the receptacle 186 is parallel to the first width direction 70 (or at most at an acute angle of 30° thereto). It is transverse and in particular perpendicular to the second width direction 70.

[0290] The insertion / removal direction 198 is transverse and in particular perpendicular to the rotation axis 134.

[0291] It is transverse and in particular perpendicular to the direction 152 / opposite direction 162 for inserting / removing the cleaning roller 66 from the floor head 22.

[0292] The receptacle 186 with the battery device 196 is positioned in the first region 114a (see Figure 5) and is thus arranged on the floor head 22 on a different side than the drive motor 104 with respect to the second center plane 112. Furthermore, an opening 200 of the receptacle 186 faces the rear side 44 and is thus facing away from the cleaning roller 66.

[0293] This provides protection against splash water.

[0294] In one embodiment, the receptacle 186 in the region of the rear side 44 is designed such that an operator can access the battery device 196 in order to be able to insert or remove it in the insertion / removal direction 198 and to be able to access it directly.

[0295] The second chamber 92 is configured to project beyond the receiving chamber 164 for the dirty fluid tank 160 (on the lower part 82). In particular, the receptacle 186 for the battery device 196 projects beyond the receiving chamber 164 (see, for example, also Figure 5).

[0296] The receptacle 186 has an end 202 facing away from the opening 200. When the dirty fluid tank 160 is arranged on the base head 22, a portion of the receptacle 186 (and thus also the battery device 196) projects beyond the dirty fluid tank 160; the end 202, in its projection in the height direction 74 in the direction of the installation plane 60, meets the dirty fluid tank 160.

[0297] This results in optimized use of space.

[0298] In the floor cleaning device 20, the battery device 196 is positioned on the floor head 22, when inserted into the receptacle 186, on the upper part 84, and is thereby positioned in particular above the dirt fluid tank 160 (relative to the height direction 74).

[0299] The first cover 172, which closes the second chamber 92, forms an upper side of the base head 22. It has a recess 204 in the form of a depression. The recess 204 lies at the second center plane 112. The recess 204 provides a recessed area. The receptacle 186 for the battery device 196 is located adjacent to this recess 204.

[0300] The receptacle 186 for the battery device 196 is located closer to the first lateral side 76 than to the second lateral side 78.

[0301] On and in particular in the recess 204, the joint device 26 is positioned as a holder for the holding rod device 24 (see, for example, Figure 6).

[0302] The recess 204 as a recessed area results in a small maximum pivot angle for the pivot area 58 on the holding rod device 24 to the floor head 22. This in turn results in good underride capability.

[0303] Furthermore, a holder 206 for the cleaning roller 66 is arranged on the recess 204, onto which the cleaning roller can be attached via its carrier 128 for storage or drying (see Figure 1).

[0304] In particular, the holder 206 is arranged closer to the rear side 44 than the joint device 26.

[0305] In one embodiment, the joint device is located at least approximately (at a distance of at most 5 cm) to the first center plane 110.

[0306] In one embodiment, the recess 204 is open to the rear side 44 (see Figure 6).

[0307] This allows, for example, water or the like that accumulates in the recess 204 to flow backward (toward the rear side 44). The third chamber 94 is closed by a second cover 208. This cover 208 (see Figure 2) is removably attached (by an operator) to the base head 22.

[0308] In one embodiment, a hair pin device 214 is arranged in the third chamber 94, which serves to receive hair.

[0309] The hairpin device 214 is removably positioned in the third chamber 94.

[0310] To clean the base head 22, an operator can remove the second cover 208 and remove the hairpin device 214 to clean it.

[0311] The third chamber 94 is positioned with a partial area 216 relative to the height direction 74 above the cleaning roller 66, so that the hairpin device 214 can act on the cleaning roller 66.

[0312] The receiving chamber 164 for the dirty fluid tank 160 is arranged on or in the first chamber 90 on the lower part 82 of the base head 22. It is arranged in the first width direction 70 directly adjacent to the receiving shaft 126 for the cleaning roller 66. Dirt fluid is removed from the cleaning roller 66 (from its cleaning material 130) via a scraper device 210 with at least one scraper bar 212. This can be coupled directly into the dirty fluid tank 160 via a corresponding outlet device 218 on the dirty fluid tank.

[0313] In one embodiment, it is provided that the stripper device 210 sits on the hairpin device 214 and is positioned on the mouth device 218 (see Figure 3).

[0314] The dirty fluid tank 160 extends in a first tank width direction 220 and a second tank width direction 222, which is transverse and in particular perpendicular to the first tank width direction 220 (see Figure 10). When the dirty fluid tank 160 is located on the base head 22, the first tank width direction 220 is parallel to the first width direction 70, and the second tank width direction 222 is parallel to the second width direction 72. Therefore, the following directions refer to the first width direction 70, 72 when the dirty fluid tank is located on the base head 22.

[0315] The dirty fluid tank 160 has a first region 224 and a second region 226 (see, for example, Figure 5).

[0316] The outlet device 218 is located at the second region 226, and dirt fluid from the cleaning roller 66 is coupled into the dirt fluid tank 160 via the second region 226.

[0317] The second region 226 of the dirty fluid tank 160 has a greater width in the second width direction 72 than the first region 224 of the dirty fluid tank 160. The width of the second region 226 in the second width direction 72 substantially corresponds to the corresponding length of the cleaning roller 66 along the rotation axis 134.

[0318] The dirty fluid tank 160 has an L-shape (see Figure 5) with a first arm 228 and a second arm 230. The first arm 228 is formed by the second region 226. The second arm 230 is formed by the first region 224. The second arm 230 is transverse and, in particular, perpendicular to the first arm 228.

[0319] There is a free space 232 between the second area 226 and the first area 224.

[0320] When the dirty fluid tank 160 is positioned in the receiving chamber 164 of the floor head 22, this free space 232 is delimited in the first width direction 70 by the second region 226 and in the second width direction 72 by the first region 224. The free space 232 is a subspace within the first chamber 90. It is no longer part of the receiving chamber 164 and is located, in particular, behind the partition wall 168 (see Figure 10). The drive motor 104 is positioned in the free space 232.

[0321] The first end face 106 of the drive motor 104 faces (when the dirty fluid tank 160 is positioned on the floor head 22) the first region 224 of the dirty fluid tank 160. A portion of the second region 226 is arranged between the drive motor 104 and the cleaning roller 66 (relative to the first width direction 70).

[0322] The first region 224 and the second region 226 of the dirty fluid tank 160 are connected to each other and, in particular, are integrally connected to each other and form a common receiving volume. The first region 224 and the second region 226 are geometric regions on the dirty fluid tank 160.

[0323] Via the second region 226, the dirt fluid tank 160 has, so to speak, a finger which can be immersed in the space between the drive motor 104 and the cleaning roller 66 when positioned on the receiving chamber 164 (see Figure 10).

[0324] This results in optimized use of space and coupling of dirt fluid to the cleaning roller at the mouth device 218 is possible over a large length range at the second region 226.

[0325] Furthermore, even with optimized space utilization, this results in a high capacity for dirt fluid in the dirt fluid tank 160.

[0326] The contaminated fluid tank 160 has a basin portion 234 and a lid portion 236 (see Figure 15). When the protective fluid tank 160 is removed from the base head 22, the lid portion 236 is removable from the basin portion 234.

[0327] The pelvic region 234 has the L-shape described above with the first region 224 and the second region 226.

[0328] The cover portion 236 can be formed as a single piece or in multiple pieces. For example, in a single-piece design, the cover portion follows the L-shape of the base portion 234 and is removable as a whole.

[0329] For example, in a multi-part design, the lid portion comprises a portion which is fixedly connected to the base portion 234 and another portion which is removable.

[0330] This removable part can be used to remove dirty fluid from the dirty fluid tank via the cover area 236 and to clean the dirty fluid tank 160.

[0331] In one embodiment, the first region 224 has a width (up to the second region 226) in the first width direction 70 that is greater than a width of the second region 226 in the first width direction 70 (see, for example, Figure 10). In particular, a maximum width of the dirty fluid tank 160 in the second width direction 72 corresponds to a maximum width of the second region 226 in the second width direction 72.

[0332] A maximum width of the dirty fluid tank in the first width direction 70 corresponds to the sum of a width of the first region 224 and the second region 226 in the first width direction 70.

[0333] In particular, it is provided that a width of the second region 226 in the second width direction 72 is at least 60% and in particular at least 70% and preferably at least 80% of a total width of the base head 22 in the second width direction 72. This results in a high absorption volume for dirt fluid.

[0334] Furthermore, it is advantageously provided that a width of the second region 226 in the second width direction 72 is at least 1.5 times, in particular at least 2 times, and in particular at least 2.5 times the width of the first region 224 in the second width direction 72. This results in a compact design of the base head 22 with a high capacity for the dirty fluid tank and a space-saving design.

[0335] With the dirty fluid tank 160 held on the floor head 22 in the receiving chamber 164, the drive motor 104 is positioned between the torque transmission device 118 and the first region 224 of the dirty fluid tank 160.

[0336] The open space 232 has an at least approximately hollow cuboid shape.

[0337] The receptacle 186 for the battery device 196 projects beyond the first area 224 of the dirty fluid tank 160.

[0338] The length of the mouth device 218 in the second width direction 72 is preferably at least 80% of the length of the cleaning roller 66 in the second width direction 72 and preferably extends over its entire length in order to enable optimized coupling.

[0339] A diagonal (diagonal plane) 250 can be assigned to the base head 22 (see Figure 5). This diagonal plane 250 is a diagonal plane to the first center plane 110 and the second center plane 112; the diagonal plane 250 lies at a 45° angle to the aforementioned center planes 110, 112 (see Figure 5). The diagonal plane 250 passes through the intersection line of the aforementioned center planes 110, 112.

[0340] In one embodiment (see Figure 5), the receptacle 186 for the battery device 196 and the battery device 196 are located on this diagonal plane 250. Furthermore, the area of ​​the torque transmission device 118 on which the output element 122 is located is located on this diagonal plane 250.

[0341] Furthermore, the drive motor 104 is located on this diagonal plane 250. This results in an optimized weight distribution on the base head 22.

[0342] The receiving chamber 184 is designed such that the dirty fluid tank 160 can be inserted and removed therein in the manner of a drawer and is also held in this manner.

[0343] The dirty fluid tank 160 can be removed or inserted at the first lateral side 76. The receiving chamber 164 has an opening 238 for the dirty fluid tank 160 on the first lateral side 76 (see, for example, Figure 17 or Figure 3).

[0344] An insertion / removal direction 240 (see, for example, Figure 3) of the dirty fluid tank 160 at the receiving chamber 164 and thus at the base head 22 is oriented transversely to the first width direction and, in particular, perpendicular to it. The insertion / removal direction 240 is oriented at least approximately parallel to the second width direction 72.

[0345] It is positioned transversely and in particular perpendicularly to the insertion / removal direction 198 for the battery device 196. The insertion / removal direction 240 is oriented at least approximately parallel to the direction 152 / opposite direction 162 for inserting or removing the cleaning roller from the receiving shaft 126.

[0346] The cleaning roller 66 and the dirt fluid tank 160 are removable towards the same first lateral side 76.

[0347] It is intended that the dirty fluid tank 160 and the cleaning roller 66 can be inserted or removed independently of one another, so that, for example, it is not necessary to first remove the cleaning roller 66 in order to remove the dirty fluid tank or vice versa.

[0348] A housing element 242 is arranged on the dirty fluid tank 160, which ensures a flush transition to a housing of the base head 22 on the first lateral side 76 when the dirty fluid tank is inserted.

[0349] In one embodiment, a handle element 244 is arranged on the housing element 242 to allow an operator access.

[0350] Furthermore, a fixing device 246 is arranged on the housing element 242, via which the dirty fluid tank can be fixed to the receiving chamber 164 relative to the insertion / removal direction 240. For example, the fixing device 246 is designed as a form-fitting device or snap connection.

[0351] In one embodiment, a sweeping device 248 is arranged on the dirt fluid tank 160, which is arranged in particular on the second region 226 and extends along the second width direction 72. The task of the sweeping device 248 is to feed coarse dirt from the floor 30 to be cleaned to the cleaning roller 66 so that it can be carried along and coupled into the dirt fluid tank 160.

[0352] The receiving chamber 164 for the dirt fluid tank 160 is open to the installation plane 60, at least in part. This allows the sweeping device 248 in the dirt fluid tank 160 to act on the surface of the floor 30 to be cleaned.

[0353] In one embodiment, it is provided that the dirty fluid tank is held floating on the receiving chamber 164.

[0354] The floor cleaning device 20 works as follows:

[0355] For cleaning operation of the floor cleaning device 20, it is removed from the floor station 64. In the state shown in Figure 1, the cover 144 is removed, the cleaning roller 66 is placed into the receiving shaft 126, and the cover 144 is closed. This can be done by first placing the cleaning roller 46 into the receiving shaft 126 and then placing the cover 144 onto the cleaning roller 66 and the floor head 22, or by first placing the cleaning roller 66 onto the second pivot bearing 128 (abutment) on the cover 144 and then pushing it in, ensuring that the cover 144 is fixed to the floor head.

[0356] When the dirt fluid tank is inserted, a cleaning process can be carried out on the floor 30 to be cleaned.

[0357] An operator can make a corresponding adjustment via the pivoting position of the support rod device 24 on the joint device 26. Cleaning fluid is supplied from the cleaning fluid tank 50 to the nozzle device 180 via the guide device 178, and the cleaning roller 66 is moistened. Alternatively or additionally, the floor 30 to be cleaned can also be moistened directly.

[0358] The drive motor is supplied with electrical energy via the battery device 196. It drives the rotation of the cleaning roller 66 about the rotation axis 134 via the output element 122. This acts mechanically on the floor 30 to be cleaned and loosens dirt. The dirt is carried along and removed via the scraper device 210 and coupled into the dirt fluid tank 160 via the outlet device 218. Hair is collected via the hairpin device 214.

[0359] When the dirt fluid tank 160 is full (which is indicated in particular on the floor cleaning device 20) or when the cleaning process is finished, the dirt fluid tank 160 is removed and emptied and, if necessary, cleaned.

[0360] By opening the second cover 208, the hairpin device 214 (with the stripper device 210) can be accessed and removed and cleaned.

[0361] The cleaning roller 66 can be removed and inserted into the holder 206 when the floor cleaning device 20 is placed on the floor station 64.

[0362] The holding rod device 24 is brought into the parking position 62.

[0363] The floor cleaning device 20 has a compact design. The floor head is designed to save space. The L-shape of the dirt fluid tank 160 results in optimized space utilization with a large storage volume and, in particular, the ability to couple dirt fluid from the cleaning roller 66 via the outlet device 218 into the dirt fluid tank without the need for a fan. Moment compensation is achieved by arranging the drive motor 104 and the battery device 196 on either side of the second center plane 112. The arrangement of the battery device above the receptacle 186 results in optimized splash protection (due to its arrangement facing away from the cleaning roller 66) and its arrangement above the partition wall 86.

[0364] The partition wall 86 enables a simple construction with optimized protection of moisture-sensitive areas such as the circuit 174 and the solenoid valve 176.

[0365] The cleaning roller 66 is mounted on two sides by the pivot bearing device 132, namely by the first pivot bearing 136 and the second pivot bearing 138, which are spaced apart from each other in the second width direction 72. This allows the cleaning roller 66 to be designed with a great length, resulting in an optimized cleaning result.

[0366] The second pivot bearing 138, which serves as a counterbearing for the first pivot bearing 136, is arranged on a removable cover 144. This allows for easy removal and insertion of the cleaning roller 66.

[0367] The cover 144 is a part of the base head 22, and the cleaning roller 66 can be removed from it.

[0368] The cleaning roller 66 (without cover 144) can be cleaned in particular in a washing machine.

[0369] The above described embodiment is a floor cleaning device 20 that is hand-operated, particularly by a standing user. This embodiment was described as a floor cleaning device 20 that does not require a fan. It is also possible, in principle, to provide a fan device to vacuum the cleaning roller 66 (and optionally also the floor 30 to be cleaned). The fan device can be arranged on the support rod device 24 or can be arranged on the floor head 22.

[0370] It is possible that the solution according to the invention (pivot bearing device with first pivot bearing and abutment, L-shape of the dirt tank, chamber structure with splash-proof partition wall and more in combination or individually) can also be used on a self-propelled and self-steering floor cleaning device ("cleaning robot").

[0371] The design is basically the same as described above, without the holding rod device 24, although corresponding sensor elements and a device for self-driving and self-steering are still present.

[0372] The self-propelled and self-steering floor cleaning device can be designed without a blower or can be equipped with a blower device, which is then naturally arranged on the corresponding floor head.

[0373] List of reference symbols

[0374] Floor cleaning device

[0375] Ground head

[0376] Holding rod device

[0377] Joint device

[0378] Swivel axis floor to be cleaned proximal end distal end

[0379] bracket

[0380] Control element / display element

[0381] rod

[0382] Longitudinal axis

[0383] back

[0384] Forward direction

[0385] Corpus

[0386] Cleaning fluid tank a cheek b cheek

[0387] recess

[0388] front

[0389] Swivel range

[0390] Installation level

[0391] Parking position

[0392] Ground station

[0393] cleaning roller

[0394] Recording first width direction second width direction

[0395] Height direction first lateral side second lateral side structural support lower part upper part partition wall central plane first chamber second chamber third chamber floor wall housing support element drive motor first end face second end face first central plane second central plane a first area b second area drive shaft rotation axis torque transmission device track output element rotation axis receiving shaft support handle cleaning material pivot bearing device rotation axis first pivot bearing second pivot bearing first end face second end face cover

[0396] Rolling bearings

[0397] Pen

[0398] recess

[0399] Direction

[0400] Fixing device movable element bridge

[0401] Dirty fluid tank opposite direction receiving chamber receiving space partition receiving space first cover

[0402] Circuit solenoid valve supply device nozzle device first recess second recess receptacle third recess opening

[0403] Bulge Wall Battery device Insertion / removal direction Opening

[0404] End

[0405] Recess holder second cover

[0406] Scraper device

[0407] scraper bar

[0408] Hairpin device

[0409] Sub-area

[0410] Mouth device first tank width direction second tank width direction first area second area first arm second arm

[0411] Free space

[0412] pelvic area

[0413] Lid area

[0414] opening

[0415] Insertion / removal direction

[0416] Housing element

[0417] Handle element

[0418] Fixation device

[0419] Sweeping device

[0420] Diagonal plane

Claims

Claims: Floor cleaning device comprising a floor head (22), at least one cleaning roller (66) which is rotatably arranged on the floor head (22) about a rotational axis (134) and for which a drive motor (104) is provided for rotary drive, a rotary bearing assembly (132) for the at least one cleaning roller (66), and a dirt fluid tank (160) which is detachably mounted on the floor head (22), characterized in that a receiving chute (126) for the at least one cleaning roller (66) is arranged on the floor head (22), that the rotary bearing assembly (132) comprises a first rotary bearing (136) which is fixedly arranged on the floor head (22) and is positioned on the receiving chute (126), that the rotary bearing assembly (132) has a second rotary bearing (138) which is arranged on a cover (144) for the receiving chute (126), wherein the cover (144) is attached to the The bottom head (22) is movable,and wherein, in operation of the floor cleaning device, the at least one cleaning roller (66) is rotatably mounted on the first pivot bearing (136) and on the second pivot bearing (138) as a counter-bearing to the first pivot bearing, and wherein the at least one cleaning roller (66) is removable from the cover (144). Floor cleaning device according to claim 1, characterized in that a removal direction (152) of the at least one cleaning roller (66) from the receiving shaft (126) is at least approximately parallel to the axis of rotation (134). Floor cleaning device according to claim 1 or 2, characterized by a receiving chamber (164) for the dirt fluid tank (160), which is arranged on the floor head (22), wherein, with respect to a first lateral direction (70) transverse to the axis of rotation (134), the receiving chamber (164) is arranged next to the receiving shaft (126) for the at least one cleaning roller (66). Floor cleaning device according to claim 3, characterized in that the dirt fluid tank (160) can be removed from the receiving chamber (164) in a removal direction (240) which is at least approximately parallel to the axis of rotation (134). Floor cleaning device according to one of the preceding claims, characterized by at least one of the following: the at least one cleaning roller (66) is removable from the receiving shaft (126) on a lateral first side (76) of the floor head (22); the dirt fluid tank (160) is removable from the receiving chamber (164) on a lateral first side (76) of the floor head (22); the dirt fluid tank (160) and the at least one cleaning roller (66) are removable from the floor head (22) on the same side (76), which is in particular a lateral side (76); the dirt fluid tank (160) and the at least one cleaning roller (66) are removable from the floor head (22) and / or insertable on the floor head (22) independently of each other; a discharge direction (240) of the dirt fluid tank (160) from the bottom head (22) and a discharge direction (152) of the at least one cleaning roller (66) from the bottom head (22) are parallel to each other. Floor cleaning device according to one of the preceding claims, characterized in that a torque transmission device (118) is arranged on the floor head, which transmits a torque from the drive motor (104) to the at least one cleaning roller (66), wherein the torque transmission device (118) comprises an output element (122) with at least one of the following: the output element (122) is located on the floor head (22); the output element (122) is positioned on the first pivot bearing (136); the output element (122) forms the first pivot bearing (136); the drive element (122) is positioned closer to a second lateral side (78) of the base head (22) than to a lateral first side (76), wherein the lateral first side (76) is turned away from the lateral second side (78) and the cover (144) is positioned on the lateral first side (76) and / or the at least one cleaning roller (66) is removable via the lateral first side (76).Floor cleaning device according to one of the preceding claims, characterized in that the second rotary bearing (138) comprises a rolling bearing or sliding bearing. Floor cleaning device according to one of the preceding claims, characterized in that the cover (144) is movable with separation from the at least one cleaning roller (66) to the floor head (22) and / or that the cover (144) with the at least one cleaning roller (66) held thereon is removable from the floor head (22). Floor cleaning device according to one of the preceding claims, characterized in that the cover (144) is movably connected to the floor head (22) and / or is removable from the floor head (22). Floor cleaning device according to one of the preceding claims, characterized in that the receiving chute (126) for the at least one cleaning roller (66) is open to a front face (56) of the floor head (22), with at least one of the following: a front end of the floor head (22) rests against the at least one cleaning roller (66); the at least one cleaning roller (66) projects beyond the receiving chute (126) at the front face (56); the receiving chute (126) is open towards a mounting surface (60) of the floor head (22). Floor cleaning device according to one of the preceding claims, characterized in that the lid (144) is detachably fixed to the floor head (22) on a lateral side (76) of the floor head (22).Floor cleaning device according to one of the preceding claims, characterized by a fixing device (154) by which the lid (144) is detachably fixed to the floor head (22), wherein in particular the lid (144) as a whole can be removed from the floor head (22). Floor cleaning device according to claim 11, characterized by at least one of the following: the fixing device (154) comprises a positive locking connection and / or a frictional locking connection; the fixing device (154) comprises at least one movable fixing element (156) which is movable via operator intervention. Floor cleaning device according to one of the preceding claims, characterized in that (i) at least one pin (148) is arranged on the cover (144) and an associated recess (150) for immersing the pin (148) is arranged on the base head (22), and / or (ii) at least one pin is arranged on the base head (22) and an associated recess for immersing the pin is arranged on the cover. Floor cleaning device according to claim 14, characterized by at least one of the following: the at least one pin (150) is positioned in a transverse direction offset to the axis of rotation (134); the at least one pin (150) has an extension on (i) in an insertion direction (162) of the cover (144) on the bottom head (22); and / or (ii) in an insertion direction (162) of the at least one cleaning roller (66) on the receiving shaft (126); and / or (iii) parallel to the axis of rotation (134). Floor cleaning device according to one of the preceding claims, characterized in that the receiving chamber (164) for the dirt fluid tank (160) and the receiving shaft (126) for the at least one cleaning roller (66) are arranged directly one after the other in a first lateral direction (70), which is transverse to the axis of rotation (134). Floor cleaning device according to claim 16, characterized by a scraper device (210) which is located on the floor head (22) and scrapes dirt fluid from the at least one cleaning roller (66) during operation of the floor cleaning machine, and a discharge device (218) which is arranged on the dirt fluid tank (160) and at which dirt fluid scraped off during operation of the floor cleaning machine is coupled into the dirt fluid tank (160) without the use of a blower. A floor cleaning device according to any of the preceding claims, characterized by at least one sweeping element (248) which acts on coarse dirt on a floor (30) to be cleaned and makes it available to the at least one cleaning roller (66) for removal. A floor cleaning device according to any of the preceding claims, characterized in that the at least one cleaning roller (66) is rotatably mounted between the first pivot bearing (136) and the second pivot bearing (138). A floor cleaning device according to any of the preceding claims, characterized by a cleaning fluid tank (50) which supplies cleaning fluid to the at least one cleaning roller (66) and / or a floor (30) to be cleaned via a nozzle assembly (180).Floor cleaning device according to claim 20, characterized by at least one of the following: the cleaning fluid tank (50) is positioned on the floor head (22) or on a support rod device (24); a supply device (178) for cleaning fluid is provided, through which cleaning fluid flows from the cleaning fluid tank (50) to the nozzle device (180); a valve (176) and / or a pump is arranged on the cleaning fluid tank (50) or a supply device (178) for cleaning fluid to the nozzle device (180). Floor cleaning device according to one of the preceding claims, characterized in that the dirt fluid tank (160), when positioned on the floor head (22), extends in a first lateral direction (70) which is transverse to the axis of rotation (134), and extends in a second lateral direction (72) which is parallel to the axis of rotation (134), characterized in that the dirt fluid tank (160) has a first region (224) and a second region (226) connected to the first region (224), wherein the second region (226) has a greater width in the second lateral direction (72) than the first region (224), and that the second region (226) is positioned between the drive motor (104) and the at least one cleaning roller (66), and the first region (224) is located in front of a first end face (106) of the drive motor (104) with respect to the second lateral direction (72). is positioned.Floor cleaning device according to claim 22, characterized in that the first region (224) follows the second region (226) in the first lateral direction (70). Floor cleaning device according to claim 22 or 23, characterized in that an insertion direction (240) of the dirt fluid tank (160) at the floor head (22) is at least approximately parallel to the second lateral direction (72). Floor cleaning device according to one of claims 22 to 24, characterized in that a torque transmission device (118) is provided for transmitting torque from the at least one drive motor (104) to the at least one cleaning roller (66), which bridges a distance (120) between the drive motor (104) and the at least one cleaning roller (66) in the first lateral direction (70) and which is torque-effectively coupled to the drive motor (104) in the region of a second end face (108) of the drive motor (104), wherein the second end face (108) of the drive motor (104) faces away from the first end face (106). Floor cleaning device according to one of claims 22 to 25, characterized by at least one of the following: the first region (224) has a width in the first lateral direction (70) which is greater than the width of the second region (226) in the first lateral direction (70);a maximum width of the dirt fluid tank (160) in the second lateral direction (72) corresponds to a maximum width of the second region (226) in the second lateral direction (72); a maximum width of the dirt fluid tank (160) in the first lateral direction (70) corresponds to the sum of a width of the first region (224) in the first lateral direction (70) and a width of the second region (226) in the first lateral direction (70); the dirt fluid tank (160) has an L-shape with a first arm (228), which is the second region (226), and a second arm (230), which is the first region (224), wherein the first arm (228) and the second arm (230) are transverse and, in particular, perpendicular to each other; The first area (224) and the second area (226) are integrally connected; the first area (224) and the second area (226) define a common receiving volume for dirt fluid of the dirt fluid tank (160); a width of the second area (226) in the second lateral direction (72) is at least 60% and in particular at least 70% of a total width of the bottom head (22) in the second lateral direction (72); a width of the second area (226) in the second lateral direction (72) is at least 1.5 times, in particular at least 2 times and in particular at least 2.5 times a width of the first area (224) in the second lateral direction (72).Floor cleaning device according to one of claims 22 to 26, characterized in that the first area (224) and the second area (226) define a free space (232) in which, with the dirt fluid tank (160) held on the floor head (22), the drive motor (104) is at least partially arranged, wherein in particular the free space (232) has a hollow cuboid shape. Floor cleaning device according to one of claims 22 to 27, characterized in that an outlet device (218) is arranged on the second area (226), via which dirt fluid can be coupled from the at least one cleaning roller (66) into an interior of the dirt fluid tank (160), in particular without a blower, in particular with at least one of the following: a length of the outlet device (218) in the second lateral direction (72) is at least 80% of a length of the at least one cleaning roller (66) along the axis of rotation (134) of the at least one cleaning roller (66); a scraper device (210) is provided in the area of ​​the outlet device (218), by which dirt fluid can be detached from the at least one cleaning roller (66) and supplied to the dirt fluid tank (160); A hairpin device (214) is arranged on the bottom head (22), through which hairs can be picked up by the at least one cleaning roller (66). Floor cleaning device according to one of claims 22 to 28, characterized in that a battery device (196) is arranged on the floor head (22), in particular detachably, and in particular with at least one of the following: with respect to a height direction (74) perpendicular to a mounting plane (60) of the floor head (22) on a floor (30) to be cleaned, the battery device (196) and / or a receptacle (186) for the battery device (196) is positioned above the dirt fluid tank (160) and / or the drive motor (104) and / or the at least one cleaning roller (66) and / or a partition (86) on the floor head (22), and in particular the receptacle (186) and / or the battery device (196) projects above the dirt fluid tank (160); a withdrawal direction (198) of the battery device (196) from the bottom head (22) is transverse and in particular perpendicular to the second lateral direction (72);A removal direction (198) of the battery assembly (196) from the base head (22) is at least approximately parallel to the first lateral direction (70); the battery assembly (196) can be removed from a rear side (44) of the base head (22); the dirt fluid tank (160) is positioned between an end of the battery assembly (196) and the at least one cleaning roller (66) on the base head (22) with respect to the first lateral direction (70). Floor cleaning device according to claim 29, characterized in that a receptacle (186) for the battery assembly (196) and / or the battery assembly (196) is arranged adjacent to the first region (224) of the dirt fluid tank (160), in particular with at least one of the following: an end (202) of the receptacle (186) for the battery assembly (196) and / or an end of the battery assembly (196) is located above the dirt fluid tank (160) and in particular above the first region (224) with respect to a vertical direction (74) of the floor head (22); with respect to the second lateral direction (72) the receptacle (186) for the battery assembly (196) and / or the battery assembly (196) is positioned offset from the drive motor (104); With respect to the second width direction (72), the receptacle (186) for the battery device (196) and / or the battery device (196) is positioned offset from a torque transmission device (118);With respect to the first lateral direction (70), the receptacle (186) for the battery assembly (196) and / or the battery assembly (196) is positioned offset from the drive motor (104); with respect to the first lateral direction (70), the receptacle (186) for the battery assembly (196) and / or the battery assembly (196) is positioned offset from a torque transmission device (118); with respect to a vertical direction (74) of the base head (22), the receptacle (186) for the battery assembly (196) and / or the; The battery assembly (196) is positioned offset from the dirt fluid tank (160) on the floor head (22). A floor cleaning device according to one of the preceding claims, characterized in that the floor head (22) has a first chamber (90) and a second chamber (92), that a partition (86) is provided which spatially separates the first chamber (90) and the second chamber (92), that the drive motor (104) is arranged in the first chamber (90) and the at least one cleaning roller (66) is arranged on or in the first chamber (90), and that electronic components (174) and / or at least one valve (176) and / or a pump and / or a battery assembly (196) are arranged in the second chamber (92). A floor cleaning device according to one of the preceding claims, characterized by a design as a hand-held floor cleaning device with a support rod assembly (24) which is pivotably mounted on the floor head (22).Floor cleaning device according to one of claims 1 to 31, characterized by a design as a self-propelled and self-steering floor cleaning device. * * *

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