DE102022133004A1 - Floor cleaning device with floor head with wall - Google Patents

Abstract

A floor cleaning device is provided, comprising a floor head (22), at least one cleaning roller (66) which is rotatable about an axis of rotation (134), and a drive motor (104) for the at least one cleaning roller (66), wherein the floor head (22) has a first chamber (90) and a second chamber (92), wherein a partition wall (86) is provided which spatially separates the first chamber (90) and the second chamber (92) from one another, wherein 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 wherein electronic components (174) and/or at least one valve (176) and/or a pump and/or a battery device (196) are arranged in the second chamber (92).

Description

The invention relates to a floor cleaning device comprising a floor head, at least one cleaning roller which is rotatable about a rotation axis, and a drive motor for the at least one cleaning roller.

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

The WO 2021/112354 A1 reveals a vacuum cleaner.

Cleaning equipment is in the CN111685647A , the US 2020/0315415 A , the EP 3 117 754 A1 , the US 2015/0313434 A , the JP2015146958 A2 or the EP 2 659 816 A2 Other cleaning devices are disclosed in the US 2006/0064828 A or the WO 01/41618 A1 revealed. The CN108478109A and the CN 209489960U reveal robots for cleaning photovoltaic modules.

The EN 10 2015 104 749 A1 reveals a hand-operated or autonomous floor cleaner, as well as the EN 10 2015 104 750 A1 .

Floor cleaning devices are, for example, in the EP 3 750 464 A1 , the EP 3 884 834 A1 , the US 2021/018620 A1 or the KR 2012 06900U described.

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

Floor cleaning devices are also available in the EP 2 574 264 B1 , the US8,855,941 B1 , the DE 102 42 257 B4 and the US10,149,589 B2 disclosed.

The DE 20 2015 101 302 U1 reveals a cleaning device in the form of a vacuum cleaner.

From the WO 2016/058901 A1 , WO 2016/058856 A1 , WO 2017/063663 A1 , WO 2016/058879 A1 , WO 2016/058956 A1 Surface cleaning machines are known. From the WO 2016/058907 A1 A surface cleaning machine is also known.

From the US$4,875,246 A portable floor cleaning device is known which has a roller driven by an electric motor.

From the DE 20 2009 013 434 U1 A device for wet cleaning floors with a brush which can rotate about a rotation axis is known.

From the CN 201 197 698 Y a cleaning machine is known.

From the US$6,026,529 is a device for cleaning floors or other hard surfaces.

From the WO 2010/041185 A1 is a surface cleaning machine with rotating brushes.

From the US7,665,174 B2 is a cleaning head for a floor cleaning machine.

From the 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.

From the WO 2013/106762 A2 A surface cleaning machine with a cleaning roller and a drive unit for driving the cleaning roller is known. A dirt tray is provided into which the cleaning roller sweeps dirt as it rotates. The dirt tray can be opened.

From the US7,921,497 B2 A floor scrubbing device is known which is manually operated and comprises a drive roller which is coupled to a scrubbing roller.

From the WO 2015/086083 A1 Another floor cleaning machine is known.

From the US$3,789,449 is a hard floor cleaning device known.

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

From the EN 10 2007 054 500 A1 is a household floor cleaning device with a wiping roller.

From the US 2006/0272120 A1 A floor cleaning device with a housing, a hose arrangement and a cleaning head is known.

From the EN 10 2017 120 723 A1 A cleaning machine station for a cleaning machine is known, wherein the cleaning machine station has a receiving chamber for a cleaning head of the cleaning machine.

From the WO 2005/087075 A1 A floor cleaning machine with a handle is known, which is pivotably mounted on a base.

The CN107007215A reveals a floor cleaning robot.

The EN 20 2018 104 772 U1 discloses a dirty water collecting mechanism and dirty water detecting mechanism and a cleaning device.

Cleaning machines are also available from 2017101723 A4 , the CN 206687671 U , the EN 20 2016 105 300 U1 , the US9,622,637 B1 , the CN 205359367 U , the US 2017/0119225 A1 , the CN 205181250 U , the CN 205181251 U , the CN 205181256 U , the DE 20 2016 105 299 U , the WO 2017/059602 A1 , the WO 2017/059600 A1 , the WO 2017/059601 A1 , the WO 2017/059603 A1 or the DE 20 2016 105 301 U1 known.

The unpublished EN 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, wherein the at least one cleaning roller is held on the floor head at least partially by a holding device, wherein the holding device with the at least one cleaning roller is removable from the floor head. Reference is made to this document in its entirety. Further floor cleaning devices are described in the unpublished DE 10 2022 102 937.9 and EN 10 2022 102 918.2 disclosed, which is incorporated by reference in its entirety.

Further floor cleaning devices are available in the CN207850637 U and the WO 21248591 A1 disclosed.

The invention is based on the object of providing a floor cleaning device of the type mentioned above, which is compact and can be manufactured in a simple manner.

This object is achieved according to the invention in the floor cleaning device mentioned at the outset in 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.

In the solution according to the invention, a partition wall is provided which divides the base head into a first part with the first chamber and a second part with the second chamber, whereby a spatial separation is provided. This allows functional components which are exposed to dirty fluid to be separated from components which may only be exposed to dirty fluid to a small extent, such as electronic components.

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 in such a way that the partition wall provides significant fluid protection (protection against the ingress of media) of the second chamber and in particular splash protection. For example, the area of the total of these openings is at most 5% and in particular at most 3% and in particular at most 2.5% of the total area of the partition wall.

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 by the partition wall against the ingress of dirt and liquid. This allows a separation into a clean area and a dirty area, whereby the clean area is protected from fluids 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 with, for example, 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 it.

• - die Trennwandung zwischen der ersten Kammer und der zweiten Kammer ist mindestens mit einem Teilbereich quer zu einer Normalen der Aufstellebene orientiert;
• - die zweite Kammer ist bezogen auf eine Höhenrichtung, welche senkrecht zu der Aufstellebene ist, oberhalb der ersten Kammer angeordnet.

It is advantageous if the floor head is assigned a mounting level 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 installation plane;
• - the second chamber is arranged above the first chamber in relation to a height direction which is perpendicular to the installation plane.

The partition wall results in a separation of the base head into a lower and an upper part. This results in optimized positioning of the corresponding components and easy manufacture of the base head.

• - die zweite Kammer ist geschlossen;
• - die erste Kammer ist mindestens in einem Teilbereich und insbesondere zu der mindestens einen Reinigungswalze hin offen.

It is advantageous if at least one of the following is provided:

• - the second chamber is closed;
• - the first chamber is open in at least a partial area and in particular towards the at least one cleaning roller.

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

• - die erste Kammer umfasst eine Aufnahmekammer für einen Schmutzfluid-Tank;
• - die erste Kammer umfasst einen Aufnahmeschacht für die mindestens eine Reinigungswalze und/oder der Aufnahmeschacht ist an der ersten Kammer angeordnet.

It is also advantageous if at least one of the following is provided:

• - the first chamber comprises a receiving chamber for a dirty 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.

Basically, the area around a dirty fluid tank is exposed to dirty fluid. The arrangement on or in the first chamber including the receiving shaft results in a compact structure that is easy to manufacture. 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 lid. This makes it easy to manufacture.

• - der erste Deckel ist permanent fest mit dem Bodenkopf verbunden;
• - der erste Deckel schließt bezogen auf eine Höhenrichtung die zweite Kammer nach oben;
• - der erste Deckel bildet zumindest teilweise eine Oberseite des Bodenkopfs;
• - der erste Deckel ist mehrteilig oder mit mehreren Bereichen ausgebildet.

It is advantageous if at least one of the following is provided:

• - the first cover is permanently connected to the base head;
• - the first lid closes the second chamber upwards in relation to a height direction;
• - the first cover forms at least partially an upper surface of the base head;
• - the first cover is made up of several parts or with several areas.

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

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

• - mindestens ein Halter für eine Reinigungswalze;
• - ein Halter für eine Haltestabeinrichtung;
• - eine Gelenkeinrichtung für eine Haltestabeinrichtung, über welche die Haltestabeinrichtung schwenkbar zu dem Bodenkopf gehalten ist.

Furthermore, it is advantageous if at least one of the following is positioned in 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 to the floor head.

The arrangement of the holder for a cleaning roller results in optimized use of space. When the floor cleaning device is not in use, the cleaning roller can be held on the holder for a cleaning roller, for example for drying. The arrangement of the joint device or the holder for a holding rod device (for operation by a standing operator) allows a small swivel angle to be achieved for optimized accessibility for furniture and the like.

• - die Ausnehmung oder Ausbuchtung oder Vertiefung erstreckt sich längs der ersten Breitenrichtung und weist eine Ausdehnung in der zweiten Breitenrichtung auf;
• - die Ausnehmung oder Ausbuchtung oder Vertiefung ist zu einer Vorderseite und/oder einer Hinterseite des Bodenkopfs offen;
• - eine Aufnahme für eine Batterieeinrichtung und/oder eine Batterieeinrichtung ist bezogen auf die erste Breitenrichtung neben der Ausnehmung oder Ausbuchtung oder Vertiefung angeordnet;
• - die mindestens eine Reinigungswalze ist bezogen auf die erste Breitenrichtung vor der Ausnehmung oder Ausbuchtung oder Vertiefung angeordnet;
• - eine Abstreifereinrichtung zum Abstreifen von Schmutzfluid von der mindestens einen Reinigungswalze und/oder eine Haarpineinrichtung zur Aufnahme von Haaren ist bezogen auf die erste Breitenrichtung vor der Ausnehmung oder Ausbuchtung oder Vertiefung angeordnet;
• - eine dritte Kammer ist bezogen auf die erste Breitenrichtung vor der Ausnehmung oder Ausbreitung oder Vertiefung angeordnet.

In particular, the bottom head has a first width direction transverse to the axis of rotation and a second width direction parallel to the axis of rotation, 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 and/or a rear side of the base 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 with respect to the first width direction;
• - a third chamber is arranged in front of the recess or expansion or depression with respect to the first width direction.

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.

By arranging the holder for the battery device or the battery device next to the recess or bulge or depression, the use of space is optimized. For example, this can also be used to compensate for torque in conjunction with the drive motor.

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.

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.

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

In one embodiment, a third chamber is arranged on the base head, the second chamber being closed fluid-tight from the third wall by a wall or another wall. The third chamber can be opened, for example. A hairpin device is arranged in the third chamber, for example, which can be removed for cleaning and then reinserted.

• - die dritte Kammer ist in Richtung zu der mindestens einen Reinigungswalze vor der zweiten Kammer angeordnet;
• - die dritte Kammer ist bezogen auf eine Höhenrichtung oberhalb mindestens eines Teilbereichs der mindestens einen Reinigungswalze angeordnet;
• - an der dritten Kammer ist insbesondere entnehmbar eine Abstreifereinrichtung zum Abstreifen von Schmutzfluid von der mindestens einen Reinigungswalze und/oder eine Haarpineinrichtung positioniert;
• - die dritte Kammer ist durch einen abnehmbaren zweiten Deckel geschlossen, insbesondere mit mindestens einem der Folgenden:
  • - der zweite Deckel bildet zumindest teilweise eine Oberseite des Bodenkopfs;
  • - der zweite Deckel ist bündig zu einem ersten Deckel der zweiten Kammer;
  • - der zweite Deckel ist in einer Richtung quer zu der Rotationsachse von dem Bodenkopf abnehmbar.

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 in relation to a height direction above at least a partial region of the at least one cleaning roller;
• - on the third chamber, in particular a scraper device for scraping dirt fluid from the at least one cleaning roller and/or a hairpin device is removably positioned;
• - the third chamber is closed by a removable second cover, in particular with at least one of the following:
  • - the second cover forms at least partially an upper surface 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.

By providing the third chamber with at least one of the features mentioned, the use of space is optimized. A scraper device and/or hairpin device can be easily removed for cleaning.

The second lid creates a closed surface for the base head.

It is particularly advantageous if the partition wall has a first area that separates the first chamber from the second chamber in a splash-proof manner. This results in a space-saving structure with a separation of functional components that may be exposed to dirty fluids and components that must not be "systematically" exposed to dirty fluids.

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

In particular, the first area forms a floor for the third chamber. This results in a space-saving structure.

• - den Antriebmotor;
• - eine Drehmomentübertragungseinrichtung, welche zur Drehmomentübertragung für den Antriebsmotor zu der mindestens einen Reinigungswalze dient;
• - einen Schmutzfluid-Tank, welcher insbesondere abnehmbar vom Bodenkopf ist;
• - eine Batterieeinrichtung oder eine Aufnahme für eine Batterieeinrichtung;
• - ein Ventil und/oder eine Pumpe;
• - die elektronischen Komponenten;
• - eine Haltestabeinrichtung;
• - mindestens ein Teil einer Drehlagereinrichtung für die mindestens eine Reinigungswalze;
• - eine Abstützeinrichtung zur Abstützung des Bodenkopfs an einem zu reinigenden Boden;
• - eine Gebläseeinrichtung.

In one embodiment, the bottom head comprises a structural support on which the partition wall is formed or arranged, the structural support holding at least one of the following:

• - the drive motor;
• - a torque transmission device which serves to transmit torque from the drive motor to the at least one cleaning roller;
• - a dirty fluid tank, which is in particular removable from the floor head;
• - a battery device or a holder for a battery device;
• - a valve and/or a pump;
• - the electronic components;
• - a holding rod device;
• - at least a part of a rotary 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.

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

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 in order to ensure good accessibility under furniture or the like.

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 structure, particularly in terms of height dimensions. This in turn enables easy access 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 receiving volume for dirty fluid.

• - die Trennwandung weist eine erste Ausnehmung oder eine erste Ausbuchtung oder eine erste Vertiefung auf, an welcher zumindest ein Teil der elektronischen Komponenten sitzt;
• - die Trennwandung weist eine zweite Ausnehmung oder eine zweite Ausbuchtung oder eine zweite Vertiefung auf, an welcher eine Batterieeinrichtung und/oder Aufnahme für eine Batterieeinrichtung sitzt;
• - die Trennwandung weist eine dritte Ausnehmung oder eine dritte Ausbuchtung oder eine dritte Vertiefung auf, an welcher das Magnetventil sitzt.

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 in which the solenoid valve is located.

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

• - die mindestens eine Ausnehmung oder mindestens eine Ausbuchtung oder mindestens eine Vertiefung weist in die erste Kammer und erhöht das Aufnahmevolumen der zweiten Kammer. Dadurch ergibt sich eine optimierte Platznutzung.

It is also advantageous if at least one of the following is provided:

• - the at least one recess or 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 use of space.

It is advantageous if a dirty 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 use of space.

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

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

For the same reason, it is advantageous if the partition wall extends between opposite lateral sides of the bottom head.

It can be provided that the partition wall is designed to be fluid-tight and in particular that the second chamber is encapsulated. In one embodiment, the partition wall has one or more openings between the second chamber and the first chamber. This can simplify the manufacture of the partition wall. Liquid that may collect in the second chamber can also flow into the first chamber through one or more such openings. It is then provided in particular that an area of the total of these openings is at most 5% and preferably at most 3% and in particular at most 2.5% of the total area of the partition wall, the total area of the partition wall being related to the effective area of the partition wall on the second chamber. The majority (95% or more) of the total area of the partition wall is thus "tight", resulting in particular in effective splash protection, which only allows media to penetrate into the second chamber to a very small extent at most.

It is particularly advantageous if a cleaning fluid tank is provided which provides cleaning fluid to at least one cleaning roller and/or a floor to be cleaned via a nozzle device. This allows a wet wiping process to be carried out on a floor to be cleaned, particularly a hard floor. The cleaning fluid tank can generally be arranged on the floor head, particularly if the floor cleaning device is designed as a self-propelled and self-steering floor cleaning device. Alternatively, the cleaning fluid tank can also be arranged on a holding rod device which serves to guide the floor cleaning device by an operator standing on the floor to be cleaned.

• - der Reinigungsflüssigkeits-Tank ist an dem Bodenkopf oder an einer Haltestabeinrichtung positioniert;
• - es ist eine Zuführungseinrichtung für Reinigungsflüssigkeit vorgesehen, über welche Reinigungsflüssigkeit aus dem Reinigungsflüssigkeits-Tank zu der Düseneinrichtung strömt;
• - an dem Reinigungsflüssigkeits-Tank oder einer Zuführungseinrichtung für Reinigungsflüssigkeit zu der Düseneinrichtung ist ein Ventil und/oder eine Pumpe angeordnet.

It is advantageous if at least one of the following is provided:

• - the cleaning fluid tank is positioned on the floor head or on a support rod device;
• - a supply device for cleaning liquid is provided, via which cleaning liquid flows from the cleaning liquid tank to the nozzle device;
• - a valve and/or a pump is arranged on the cleaning liquid tank or a supply device for cleaning liquid to the nozzle device.

This results in an optimized cleaning result. The nozzle device allows cleaning fluid to be directed to at least one cleaning roller (and thus indirectly to the floor to be cleaned) and/or directly to the floor to be cleaned.

A valve such as a solenoid valve can be used to control whether and, if so, how much cleaning fluid is supplied to the nozzle device. Alternatively or additionally, a (feed) pump can be provided for this purpose.

In one embodiment, a dirty fluid tank is positioned on or in the first chamber and it is provided in particular that during operation of the floor cleaning device, dirty fluid is coupled into the dirty fluid tank without the use of a fan from the at least one cleaning roller. In particular, a receiving chamber for the dirty fluid tank is arranged on the first chamber.

• - eine Batterieeinrichtung und/oder eine Aufnahme für eine Batterieeinrichtung ist mit einem Teilbereich bezogen auf eine Höhenrichtung oberhalb eines Bereichs an dem Bodenkopf angeordnet, an welchem der Schmutzfluid-Tank sitzt und dabei insbesondere oberhalb einer Aufnahmekammer für den Schmutzfluid-Tank angeordnet;
• - die Batterieeinrichtung und/oder eine Aufnahme für die Batterieeinrichtung ragt über den Schmutzfluid-Tank und ragt insbesondere über der Aufnahmekammer;
• - ein Wandbereich, welcher die zweite Kammer begrenzt, ist bezogen auf eine Höhenrichtung oberhalb eines Bereichs angeordnet, an welchem der Schmutzfluid-Tank sitzt und dabei insbesondere oberhalb der Aufnahmekammer angeordnet.

Furthermore, it is advantageous if at least one of the following is provided:

• - a battery device and/or a receptacle for a battery device is arranged with a partial area relative to a height direction above an area on the base head on which the dirty fluid tank is located and in particular arranged above a receiving chamber for the dirty fluid tank;
• - the battery device and/or a holder for the battery device protrudes above the dirty fluid tank and in particular protrudes above the holder chamber;
• - a wall region which delimits the second chamber is arranged, in relation to a height direction, above a region in which the dirty fluid tank is located and in particular above the receiving chamber.

It is advantageous if a torque transmission device for transmitting torque from the drive motor to the at least one cleaning roller is arranged on or in the first chamber. This results in optimized use of space.

It is also advantageous if a rotary bearing device for the at least one cleaning roller is arranged at least partially on or in the first chamber. This results in a space-saving structure.

It is also advantageous if a partition wall is arranged in the first chamber, which separates a first sub-chamber from a second sub-chamber, wherein the drive motor and/or a transmission device is positioned in the first sub-chamber and a dirty fluid tank is positioned in the second sub-chamber. This makes it possible to reduce the amount of dirty fluid that is applied to the drive motor.

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.

This solution results in optimized use of space on the floor head. A dirt fluid tank can be provided which has a large storage volume and can be "housed" on the floor head to save space.

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.

The second region follows the drive motor in relation 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 which is immersed in a region between the drive motor and the at least one cleaning roller.

It is advantageous if the first area follows the second area in the first width direction. This results in optimized use of space with optimized coupling of dirt fluid.

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 makes it easy for an operator to remove and insert the dirty fluid tank on the base head. This also results in optimized use of space.

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 device bridges a distance between the drive motor and the at least one cleaning roller in the first width direction and which is coupled to the drive motor in a torque-effective manner in the region of a second end face of the drive motor, the second end face of the drive motor facing away from the first end face. This results in optimized use of space. The at least one cleaning roller can be operated at optimized speeds and optimized torque.

• - der erste Bereich weist eine Breite in der ersten Breitenrichtung auf, welche größer ist als eine Breite des zweiten Bereichs in der ersten Breitenrichtung;
• - eine maximale Breite des Schmutzfluid-Tanks in der zweiten Breitenrichtung entspricht einer maximalen Breite des zweiten Bereichs in der zweiten Breitenrichtung;
• - eine maximale Breite des Schmutzfluid-Tanks in der ersten Breitenrichtung entspricht der Summe einer Breite des ersten Bereichs in der ersten Breitenrichtung und einer Breite des zweiten Bereichs in der ersten Breitenrichtung;
• - der Schmutzfluid-Tank hat eine L-Form mit einem ersten Arm, welcher der zweite Bereich ist, und einem zweiten Arm, welcher der erste Bereich ist, wobei der erste Arm und der zweite Arm quer und insbesondere senkrecht zueinander liegen;
• - der erste Bereich und der zweite Bereich sind einstückig miteinander verbunden;
• - der erste Bereich und der zweite Bereich definieren ein gemeinsames Aufnahmevolumen für Schmutzfluid des Schmutzfluid-Tanks;
• - eine Breite des zweiten Bereichs in der zweiten Breitenrichtung beträgt mindestens 60 % und insbesondere mindestens 70 % einer Gesamtbreite des Bodenkopfs in der zweiten Breitenrichtung;
• - eine Breite des zweiten Bereichs in der zweiten Breitenrichtung beträgt mindestens das 1,5-fache, insbesondere mindestens das 2-fache und insbesondere mindestens das 2,5-fache einer Breite des ersten Bereichs in der zweiten Breitenrichtung.

It is also advantageous if at least one of the following is provided:

• - the first region has a width in the first width direction which 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, the first arm and the second arm being transverse and in particular perpendicular to each other;
• - the first area and the second area are integrally connected to each other;
• - the first area and the second area 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.

This results in a space-saving arrangement of the dirty fluid tank on the base head. The dirty fluid tank can be designed with a large storage volume. The first area and the second area can define a continuous storage space for dirty fluid or a plurality of storage spaces can be provided.

It is particularly advantageous if the first area and the second area delimit a free space in which the drive motor is at least partially arranged when the dirty fluid tank is held on the base head, wherein the free space in particular has a hollow cuboid shape. This results in optimized use of space.

In particular, the free space when the dirty fluid tank is held on the base head is limited by a torque transmission device facing away from the first area of the dirty fluid tank. This results in optimized use of space. The base head can be designed to be compact.

• - eine Länge der Mündungseinrichtung in der zweiten Breitenrichtung beträgt mindestens 80 % einer Länge der mindestens einen Reinigungswalze längs der Rotationsachse der mindestens einen Reinigungswalze;
• - im Bereich der Mündungseinrichtung ist eine Abstreifereinrichtung vorgesehen, durch welche Schmutzfluid von der mindestens einen Reinigungswalze ablösbar und dem Schmutzfluid-Tank zuführbar ist;
• - an dem Bodenkopf ist eine Haarpineinrichtung angeordnet, durch welche Haare von der mindestens einen Reinigungswalze aufnehmbar sind.

It is particularly advantageous if an outlet device is arranged on the second region, via which dirty fluid from the at least one cleaning roller can be coupled into an interior of the dirty fluid tank, in particular without a fan, in particular with at least one of the following:

• - a length of the mouth device in the second width direction is at least 80% of a length of the at least one cleaning roller along the axis of rotation of the at least one cleaning roller;
• - in the area of the outlet 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 hair pin device is arranged on the base head, through which hair can be picked up by the at least one cleaning roller.

This results in a compact structure and an optimized cleaning result.

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

• - die Antriebswellen-Rotationsachse ist parallel zu der Rotationsachse der mindestens einen Reinigungswalze orientiert;
• - die Antriebswellen-Rotationsachse ist parallel zu der zweiten Breitenrichtung;
• - die Antriebswellen-Rotationsachse ist quer und insbesondere senkrecht zu der ersten Breitenrichtung;
• - eine Entnahmerichtung des Schmutzfluid-Tanks von dem Bodenkopf ist mindestens näherungsweise parallel zu der Antriebswellen-Rotationsachse;
• - eine Entnahmerichtung einer Batterieeinrichtung von dem Bodenkopf ist quer und insbesondere senkrecht zu der Antriebswellen-Rotationsachse.

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 dirty fluid tank from the bottom head is at least approximately parallel to the drive shaft rotation axis;
• - a removal direction of a battery device from the base head is transverse and in particular perpendicular to the drive shaft rotation axis.

This results in a compact design of the floor head. A dirty fluid tank with a high capacity for dirty fluid can be created.

• - bezogen auf eine Höhenrichtung senkrecht zu einer Aufstellebene des Bodenkopfs auf einem zu reinigenden Boden ist die Batterieeinrichtung und/oder eine Aufnahme für die Batterieeinrichtung oberhalb des Schmutzfluid-Tanks und/oder des Antriebsmotors und/oder der mindestens einen Reinigungswalze und/oder der Trennwandung an dem Bodenkopf positioniert und insbesondere ragt die Aufnahme und/oder die Batterieeinrichtung über den Schmutzfluid-Tank;
• - eine Entnahmerichtung der Batterieeinrichtung von dem Bodenkopf ist quer und insbesondere senkrecht zu der zweiten Breitenrichtung;
• - eine Entnahmerichtung der Batterieeinrichtung von dem Bodenkopf ist mindestens näherungsweise parallel zu der ersten Breitenrichtung;
• - die Batterieeinrichtung ist von einer Hinterseite des Bodenkopfs her entnehmbar;
• - der Schmutzfluid-Tank ist bezogen auf die erste Breitenrichtung zwischen einem Ende der Batterieeinrichtung und der mindestens einen Reinigungswalze an dem Bodenkopf positioniert.

It is advantageous if a battery device is arranged on the base head, in particular in a removable manner, in particular with at least one of the following:

• - in relation to a height direction perpendicular to a mounting 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 the 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 base head is transverse and in particular perpendicular to the second width direction;
• - a removal direction of the battery device from the base head is at least approximately parallel to the first width direction;
• - the battery device can be removed from the rear of the base head;
• - the dirty 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.

This results in a space-saving design. The holder or battery device can be easily protected from contaminants.

It is also advantageous if a receiving slot for the battery device has an insertion opening which faces a rear side of the base head, the rear side facing away from a front side of the base head and the at least one cleaning roller is positioned in the area of the front side of the base head. In this way, a battery device can be accommodated on the base head which has a maximum distance from the at least one cleaning roller. As a result, This provides good protection against splash water, dirty fluids, etc. The base head can then be manufactured in a simple manner.

• - ein Ende der Aufnahme für die Batterieeinrichtung und/oder ein Ende der Batterieeinrichtung liegt bezogen auf eine Höhenrichtung des Bodenkopfs oberhalb des Schmutzfluid-Tanks und insbesondere oberhalb des ersten Bereichs;
• - bezogen auf die zweite Breitenrichtung ist die Aufnahme für die Batterieeinrichtung und/oder die Batterieeinrichtung versetzt zu dem Antriebsmotor positioniert;
• - bezogen auf die zweite Breitenrichtung ist die Aufnahme für die Batterieeinrichtung und/oder die Batterieeinrichtung versetzt zu einer Drehmomentübertragungseinrichtung positioniert;
• - bezogen auf die erste Breitenrichtung ist die Aufnahme für die Batterieeinrichtung und/oder die Batterieeinrichtung versetzt zu dem Antriebsmotor positioniert;
• - bezogen auf die erste Breitenrichtung ist die Aufnahme für die Batterieeinrichtung und/oder die Batterieeinrichtung versetzt zu einer Drehmomentübertragungseinrichtung positioniert;
• - bezogen auf eine Höhenrichtung des Bodenkopfs ist die Aufnahme für die Batterieeinrichtung und/oder die Batterieeinrichtung versetzt zu dem Schmutzfluid-Tank an dem Bodenkopf positioniert.

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 to the drive motor;
• - with respect to the second width direction, the receptacle for the battery device and/or the battery device is positioned offset to 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 to the drive motor;
• - with respect to the first width direction, the receptacle for the battery device and/or the battery device is positioned offset to a torque transmission device;
• - in relation to a height direction of the floor head, the holder for the battery device and/or the battery device is positioned offset to the dirty fluid tank on the floor head.

This results in a compact structure. The battery device can be integrated into the floor head to save space. The floor head can be kept relatively low in terms of height. This in turn makes it easy to drive under furniture and the like.

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

In one embodiment, it is provided that the rotary bearing device comprises a first rotary bearing which is fixedly arranged on the floor head and is positioned on the receiving shaft, that the rotary bearing device has a second rotary 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 rotary bearing and the second rotary bearing as an abutment to the first rotary bearing, and that the at least one cleaning roller is removable from the cover.

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

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

By moving the lid towards the base head, the receiving shaft can be opened and the at least one cleaning roller can be easily removed. The mobility of the lid towards the base head in order to be able to open the receiving shaft by moving the lid can be achieved by a movable arrangement (movable mounting) of the lid on the base head and/or by a complete removability (separation) of the lid from the base head. The movable mounting of the lid on the base head can be, for example, a pivoting mounting and/or a sliding mounting.

In principle, it is also possible for at least one cleaning roller to be removed if it is held on the cover. This means that an operator does not have to touch it.

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

The fact that the cleaning roller can be removed from the lid makes cleaning the cleaning roller itself easier. This can be cleaned (after removing the lid) in a washing machine - without the lid - for example.

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.

The solution according to the invention can be implemented on different types of machines. It can be implemented on floor cleaning devices that have a blower device for sucking a dirty fluid, in particular from the at least one cleaning roller. It can be implemented on floor cleaning devices that are blower-free. It can be implemented on floor cleaning devices that have a holding rod device for guiding a standing user over a floor to be cleaned. It can be implemented on a self-propelled and self-steering floor cleaning device (cleaning robot).

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 axis of rotation. This results in easy removal and also easy insertion of the at least one cleaning roller into the receiving shaft with coupling to the rotary bearing device. Furthermore, this results in a simple structural design of the base head.

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

It is particularly advantageous if the dirty fluid tank can be removed from the receiving chamber in a direction that is at least approximately parallel to the axis of rotation. This makes it easy to remove and insert the dirty fluid tank on the floor head. For example, the dirty fluid tank can be pushed into or removed from the receiving chamber in a kind of drawer. The dirty fluid tank can also be removed, for example, when the floor cleaning device is standing on a floor station.

• - die mindestens eine Reinigungswalze ist aus dem Aufnahmeschacht an einer lateralen ersten Seite des Bodenkopfs entnehmbar;
• - der Schmutzfluid-Tank ist aus der Aufnahmekammer an einer lateralen ersten Seite des Bodenkopfs entnehmbar;
• - der Schmutzfluid-Tank und die mindestens eine Reinigungswalze sind an dem Bodenkopf an der gleichen Seite entnehmbar, welche insbesondere eine laterale Seite ist;
• - der Schmutzfluid-Tank und die mindestens eine Reinigungswalze sind unabhängig voneinander an dem Bodenkopf entnehmbar und/oder an dem Bodenkopf einsetzbar;
• - eine Entnahmerichtung des Schmutzfluid-Tanks von dem Bodenkopf und eine Entnahmerichtung der mindestens einen Reinigungswalze von dem Bodenkopf sind parallel zueinander.

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 base 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 dirt fluid tank and the at least one cleaning roller can be removed from the floor head and/or inserted into the floor head independently of one another;
• - 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 each other.

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.

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

If the dirt fluid tank and at least one cleaning roller can be removed on the same side and, for example, can also be removed in parallel directions, this results in a structurally favorable design. The corresponding floor head can be manufactured in a simple manner. If, for example, the floor cleaning device stands on a floor station, the dirt fluid tank and the cleaning roller can also be removed or inserted in a simple manner.

• - das Abtriebselement sitzt an dem Bodenkopf;
• - das Abtriebselement ist an dem ersten Drehlager positioniert;
• - das Abtriebselement bildet das erste Drehlager;
• - das Abtriebselement ist näher zu einer zweiten lateralen Seite des Bodenkopfs positioniert als zu einer lateralen ersten Seite, wobei die laterale erste Seite abgewandt zu der lateralen zweiten Seite ist und der Deckel an der lateralen ersten Seite positioniert ist und/oder über die laterale erste Seite die mindestens eine Reinigungswalze entnehmbar ist.

It is advantageous if a torque transmission device is arranged on the floor 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 located on the bottom 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 over the lateral first side on which at least one cleaning roller can be removed.

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.

In a structurally simple embodiment, the second pivot bearing comprises a rolling bearing (such as a ball bearing) or a plain bearing. This makes it easy to form an optimized abutment.

In particular, the cover is movable with separation from the at least one cleaning roller to the floor head and/or the cover is removable from the floor head with at least one cleaning roller held thereon. In particular, a corresponding choice is available to an operator. If the cover is removable from the floor head with at least one cleaning roller held thereon, removal can, for example, take place without an operator having to directly touch a dirty cleaning roller.

It is particularly provided that the cover is movably connected to the base head and/or is 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 it is removable from the base head, the cover as a whole can be separated from the base head.

• - ein vorderes Ende des Bodenkopfs liegt an der mindestens einen Reinigungswalze;
• - die mindestens eine Reinigungswalze ragt an der Vorderseite über den Aufnahmeschacht hinaus;
• - der Aufnahmeschacht ist zu einer Aufstellebene des Bodenkopfs hin offen.

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 is located on the at least one cleaning roller;
• - at least one cleaning roller protrudes beyond the receiving slot at the front;
• - the receiving shaft is open towards a mounting level of the base head.

This makes it possible to clean close to the edge. At least one cleaning roller can be moved up to a side boundary of the floor to be cleaned and can also touch the side boundary.

In particular, the cover is fixed to a lateral side of the base head so that it can be removed from the base head. This makes it easy to open or close the receiving slot and the cleaning roller can be easily removed from or inserted into the base head. A cleaning roller can then be easily removed after a cleaning process, for example, in order to wash it in a washing machine.

It is advantageous if a fixing device is provided by which the cover is removably fixed to the base head, whereby in particular the cover as a whole can be removed from the base head. This also makes it easy to connect the abutment to the base head via the cover in order to enable a secure pivoting mounting of the cleaning roller for cleaning operations.

• - die Fixierungseinrichtung umfasst eine Formschlussverbindung und/oder eine Kraftschlussverbindung (wie eine Magnetverbindung);
• - die Fixierungseinrichtung umfasst mindestens ein bewegliches Fixierungselement, welches über einen Bedienereingriff beweglich ist.

In a structurally favorable 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.

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 axis of rotation. This minimizes a flow path between the at least one cleaning roller and the receiving chamber with the dirty fluid tank and thus the dirty fluid tank. Dirty fluid detached from the at least one cleaning roller can thus be coupled directly into the dirty fluid tank in a simple manner and in particular without the need for a blower.

In principle, a floor cleaning device according to the invention can be designed as a hand-held floor cleaning device with a holding rod device which is pivotably mounted on the floor head. An operator can then guide the floor cleaning device over the floor to be cleaned using the holding rod device while standing on the floor to be cleaned.

Alternatively, it is possible for a floor cleaning device according to the invention to be designed as a self-propelled and self-steering floor cleaning device (“cleaning robot”).

The floor cleaning device can be equipped with a blower device (in particular for extracting dirt fluid from the at least one cleaning ing roller unit) or operated without a blower. If a blower device is present, this is arranged on the holding rod device or on the floor head.

• 1 eine perspektivische Darstellung eines erfindungsgemäßen Bodenreinigungsgeräts, welches an einer Bodenstation abgestellt ist, mit abgenommener Reinigungswalze;
• 2 eine perspektivische Darstellung eines Bodenkopfs der Bodenreinigungsmaschine gemäß 1, wobei ein Deckel abgenommen ist;
• 3 eine weitere Ansicht des Bodenkopfs des Bodenreinigungsgeräts gemäß 1 mit eingesetzter Reinigungswalze und teilweise eingesetztem Schmutzfluid-Tank;
• 4 eine weitere Ansicht des Bodenkopfs des Bodenreinigungsgeräts gemäß 1 mit abgenommener Reinigungswalze;
• 5 Komponenten des Bodenkopfs in ihrer relativen Anordnung zueinander;
• 6 eine perspektivische Draufsicht auf den Bodenkopf des Bodenreinigungsgeräts gemäß 1 mit einem abgenommenen Deckel für ein Widerlager einer Drehlagereinrichtung;
• 7 den Bodenkopf des Bodenreinigungsgeräts gemäß 1 auf einem zu reinigenden Boden;
• 8 die gleiche Ansicht des Bodenkopfs wie in 7 mit abgenommenen Teilen;
• 9 eine Schnittansicht längs der Linie 9-9 gemäß 8;
• 10 eine Ansicht von unten auf den Bodenkopf gemäß 7 mit abgenommenen Teilen;
• 11 eine vergrößerte Darstellung des Bereichs A gemäß 2 mit abgenommenem Deckel;
• 12 eine Explosionsdarstellung des Deckels gemäß 11;
• 13, 14 unterschiedliche Schnittdarstellungen eines Teilbereichs des Bodenkopfs, an welchem der Deckel gemäß 11 fixiert ist;
• 15 eine Schnittansicht parallel zu der Linie 15-15 gemäß 6;
• 16 eine vergrößerte Darstellung des Bereichs B gemäß 15; und
• 17 eine Explosionsdarstellung des Bodenkopfs des Bodenreinigungsgeräts gemäß 1 (mit Reinigungswalze), ohne Schmutzfluid-Tank und mit abgenommenem Deckel für die Drehlagereinrichtung.

The following description of preferred embodiments serves to explain the invention in more detail in conjunction with the drawings. They show:

• 1 a perspective view of a floor cleaning device according to the invention, which is parked at a floor station, with the cleaning roller removed;
• 2 a perspective view of a floor head of the floor cleaning machine according to 1 , with one lid removed;
• 3 another view of the floor head of the floor cleaning device according to 1 with cleaning roller inserted and dirt fluid tank partially inserted;
• 4 another view of the floor head of the floor cleaning device according to 1 with cleaning roller removed;
• 5 Components of the base head in their relative arrangement to each other;
• 6 a perspective top view of the floor head of the floor cleaning device according to 1 with a removed cover for an abutment of a pivot bearing device;
• 7 the floor head of the floor cleaning device according to 1 on a floor to be cleaned;
• 8th the same view of the bottom head as in 7 with removed parts;
• 9 a sectional view along the line 9-9 according to 8th ;
• 10 a view from below of the floor head according to 7 with removed parts;
• 11 an enlarged view of area A according to 2 with the lid removed;
• 12 an exploded view of the cover according to 11 ;
• 13 , 14 different sectional views of a part of the base head, where the cover is attached according to 11 is fixed;
• 15 a sectional view parallel to the line 15-15 according to 6 ;
• 16 an enlarged view of area B according to 15 ; and
• 17 an exploded view of the floor head of the floor cleaning device according to 1 (with cleaning roller), without dirt fluid tank and with removed cover for the rotary bearing device.

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

The holding rod device 24 has a proximal end 32 and a distal end 34 relative to an operator. At or near the distal end 34, the holding rod device 24 is pivotally connected to the base head 22 via the joint device 26 about the pivot axis 28.

The holding rod device 24 is designed, in particular with regard to its length between the proximal end 32 and the distal end 34, such that an operator standing on the floor 30 to be cleaned can guide the floor cleaning device 20 over the floor 30 to be cleaned while standing. The size can be adjusted to suit the operator by pivoting it about the pivot axis 28.

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).

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

In one embodiment, operating elements and/or display elements 38 are arranged on the holding 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 a cleaning fluid supply (in particular in terms of quantity) to a cleaning roller can also be provided. An display element is, for example, a display of the switched-on or switched-off state of the operating device 20 or the amount of water supplied.

In one embodiment, operating elements and display elements are integrated.

The holding 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 base head 22.

When the floor cleaning device 20 is operating properly and is being guided over the floor 30 to be cleaned, an operator is positioned relative to a forward direction 46 (see 7 ) when guiding the floor cleaning device 20 over the floor 30 to be cleaned behind the rear side 44.

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

A body 48 is located on the holding rod device 24 in the area of the proximal end 32. The body 48 can be pivoted about the pivot axis 28 with the holding rod device 24. A cleaning fluid tank 50 is detachably held 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 and in particular a surfactant cleaning agent.

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 holding rod device 24 and thereby on the rod 40, the rod 40 is immersed in the recess 54 between the cheeks 52a, 52b.

In particular, the cleaning fluid tank 50 and the body 48 do not protrude 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.

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 articulation 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.

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.

During operation of the floor cleaning device 20, the holding rod device is pivotable about the pivot axis 28 in a pivoting range 58 (see 6 ) which lies between a minimum angle and a maximum angle. The minimum angle of the pivoting range 58 is defined by the body 48 or the cleaning fluid tank 50 striking the base head 22. Alternatively, a corresponding locking element can be provided in front of the striking point.

The floor head 22 is assigned a mounting plane 60. This is explained in more detail below. If the floor head 22 stands on a flat floor 30 to be cleaned, then this mounting plane 60 coincides with the floor 30.

The minimum angle mentioned is small in relation 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°.

The maximum angle of the swivel 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°.

In a specific example, it is approximately 90°.

It is intended that the floor cleaning device 20 has a parking position 62 for the holding rod device 24. This parking position 62 is in 1 shown.

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 is secured to the floor head 22, so that a certain amount of force is necessary to pivot the holding rod device 24 out of the parking position 62.

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

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 cleaning operation. The floor cleaning device 20 with its floor head 22 can be placed on this.

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

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

This is in 1 shown, with the cleaning roller 66 seated on the corresponding holder 68.

The bottom head 22 has a first width direction 70 (compare 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.

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.

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).

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.

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.

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.

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.

The base head 22 comprises a structural support 80 (see in particular 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 fixed directly or indirectly to the structural support 80.

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

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.

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.)

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.

The structural support 80 comprises a partition wall 86, which ensures a spatial separation between the upper part 84 and the lower part 82. The partition wall 86 as a spatial partition wall can be fixed to the structural support 80, or the structural support 80 itself can be designed such that it forms the partition wall 86 as a partition wall between the upper part 84 and the lower part 82. The partition wall 86 also forms a "media partition wall", which ensures fluid protection with regard to the penetration of liquid/dirty fluid into the upper part 84.

The partition wall 86 follows the shape of the structural support 80.

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

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.

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

In relation to a central 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. They are also oriented at least approximately parallel to the installation plane 60 (cf. 9 ).

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 in the first width direction 70 adjacent to the second chamber 92.

The second chamber 92 is located towards the rear side 44. The third chamber 94 is located towards the front side 56. The third chamber 94 is located at least in part above the cleaning roller 66 with respect to the height direction 74.

The partition wall 86 ensures a spatial separation of the first chamber 90 and the second chamber 92 from one another and thereby represents a fluid protection in order 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 cancel out the splash water protection, but through which, for example, liquid that has nevertheless penetrated can drain from the second chamber 92 into the first chamber 90.

The first chamber 90 comprises a bottom 96 (see for example 15 ), which closes off the first chamber 90 towards the installation level 60.

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

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

At least one support element 102 (see 15 ). The cleaning roller 66 is located in the area of the front side 56 of the floor head 22 or defines this front side. The at least one support element 102 is located in the area of the rear side 44 of the floor head 22.

During cleaning operation, the floor cleaning device 20 is supported on the floor 30 to be cleaned via the floor head 22 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.

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 a further cleaning roller to form a support element 102 at a distance from the cleaning roller 66.

A drive motor 104 for the rotational drive of 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.

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 base head 22 relative to the first width direction 70. In particular, a center of gravity of the base head 22 (without the holding rod device 24) is on the drive motor 104.

The drive motor 104 has an extension in the second width direction 72 which is smaller than the extension of the base head 22 in the second width direction 72 (compare 5 ). The drive motor 104 has a first end face 106 and an opposite second end face 108 (see 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 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.

Furthermore, the base head 22 is provided with a second center plane 112 ( 7 ). The second means 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 is located centrally between the first lateral side 76 and the second lateral side 78.

In one embodiment, the drive motor 104 is located on the first center plane 110 (see 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 into 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.

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

The drive motor 104 comprises a drive shaft with a drive shaft rotation axis 116 ( 5 ). The drive shaft rotation axis 116 is parallel to the second width direction 72.

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

In the area of the second end face 108, a torque transmission device 118 is arranged on the base head 22. The torque transmission device 118 is mounted in particular on the structural support 80.

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

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

The corresponding torque of the drive motor 104 can be transmitted in 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.

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.

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.

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

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.

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

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

The cleaning roller 66 comprises a hollow cylindrical carrier 128, in particular made of a plastic material (see for example 17 ). Cleaning material 130 is arranged on the carrier as a trim. In one embodiment, the cleaning material 130 is a textile material and 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 embodiment, a handle 129 is arranged on the hollow cylindrical carrier 128 (for example 1 and 7 ), by means of which the cleaning roller 66 can be held and removed by an operator without having to touch the possibly dirty trim. This corresponding handle 129 is integrated in particular in the hollow cylindrical carrier 128 and is designed in such a way that a driver for a rotary bearing device 132 (see below) is "integrated" or the handle is set back in relation to the driver.

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

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

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

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

The rotation axis 134 of the cleaning roller 66 is parallel to the second width direction 72 and is transverse and in particular perpendicular to the first width direction 70.

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

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.

The second pivot bearing 138 as an abutment is attached to a cover 144 (compare for example 12 ) and is removable as a whole from the base head 22.

The cover 144 closes the receiving shaft 126 on the first lateral side 76 in an openable and, in particular, removable manner.

The second pivot bearing 138 is located on the cover 144 and comprises a rolling bearing 146 and in particular ball bearings ( 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 driving bearing which 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.

The cover 144 is detachable and can be fixed as a whole to the base head 22 in a removable manner. Alternatively, it can also be connected to the base head 22 in a movable manner (non-removable or additionally removable). 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 seated on the base head 22) at a distance from the second pivot bearing 138 and at the same time at a distance from the rotation axis 134 of the cleaning roller 66. The pin 148 serves to absorb torques.

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

A recess 150 is provided on the base head 22, which is open towards the first lateral side 76. This recess 150 serves to accommodate the pin 148. This is in a direction 152 (compare for example 4 ) can be inserted into the recess 150.

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.

The cover 144 is connected via a fixing device 154 (see for example 12 ) with the base head 22. The fixing device 154 comprises, for example, a spring-supported movable element 156 (see 12 to 15 ), which can be connected in the manner of a detachable snap connection to the base head 22 outside the cover 144.

In the 13 and 14 a fixed state is shown in which a fixation via the corresponding movable element 156 is carried out by means of a positive connection. In an alternative embodiment, a force-fit connection such as a magnetic connection is provided.

When the lid 144 is fixed to the base head 22, it forms part of the first lateral side 76 (compare, for example, 2 ).

In relation to the second center plane 112, the bottom head 22 is formed asymmetrically in the area of the cleaning roller 66. The bottom head 22 comprises 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.

The output element 122 protrudes from the bridge 158 (compare for example 4 ).

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

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

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

The receiving shaft 126 is open downwards towards the installation level 60. The cleaning roller 66 protrudes in this direction on the receiving shaft 126 in order to enable floor cleaning.

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

The cleaning roller 66 can be moved in a direction opposite to the direction 152 (see 4 ) from the receiving shaft 126 and thereby remove it from the base head 22. To remove the cleaning roller 66 from the base head 22, the movable element 156 is acted upon in order to release the positive connection. The cover 144 (see 4 ) can be removed.

In principle, it is possible to first remove the cover 144 and thereby remove 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.

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.

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.

The cleaning roller 66 is fixed to the base head 22 in a corresponding manner. To do this, the cleaning roller 66 is first pushed into the receiving shaft 126 (with the cover 144 removed) and is thereby displaced until the cleaning roller 66 is pushed onto the first end face 140 of the output element 122. The cover is then inserted in the direction 152 and the second pivot bearing 138 is also pushed onto the cleaning roller 66.

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 pushed into the receiving shaft 126 and then pushed until the cover 144 engages via the fixing device 154.

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

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

The first chamber 90 has a receiving chamber 164 for the dirty fluid tank 160. This is explained in more detail below.

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 is oriented at least approximately parallel to the height direction 74 and is oriented transversely and in particular perpendicular to the partition wall 86.

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

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.

In one embodiment, the base 96 (compare 17 ) is designed to be able to Area of the dirty fluid tank 160, when seated on the base 22, is open.

The second chamber 92 has a receiving space 170. The receiving space 170 is closed fluid-tight at the top (facing 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.

In the closed chamber 90, components of the cleaning device 10 are arranged which are sensitive to liquid and dirty fluid.

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

Furthermore, a valve such as a solenoid valve 176 (compare 17 ) in the second chamber 92. Alternatively, a pump can be provided.

The floor cleaning device 20 comprises a feed device 178 (in 8th a partial area is shown), via which cleaning fluid from the cleaning fluid tank 50 can be fed to a nozzle device 180 on the floor head. The nozzle device 180 is in particular arranged and designed such that cleaning fluid can be fed to the cleaning material 130 of the cleaning roller 66 via it. This can be moistened as a result. The moistened material in turn acts on the floor 30 to be cleaned and dirt can be removed more easily.

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

The transport of cleaning liquid to the nozzle device 180 from the cleaning liquid tank 50 is gravity-driven. Alternatively, the above-mentioned pump or the like can also be provided.

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.

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. As a result, the receiving volume of the receiving space 170 is increased.

The circuit 174 is located in this first recess 182.

In one embodiment, a second recess 184 is provided, in which a receptacle 186 for a battery device is seated.

Furthermore, a third recess 188 is provided in which the solenoid valve 176 is seated (see also 10 ).

An opening 190 is positioned at the first recess 182, through which (with appropriate sealing device) cables are led to the drive motor 104.

On the partition wall 86 there is a further bulge 192 (compare 8th ) which increases the receiving volume of the first chamber 90. This bulge 192 points upwards into the upper part 84 and is arranged in the area of the drive motor 104 in order to be able to accommodate it in a space-saving manner.

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

The recesses 182, 184, 188, 192 allow the space on the floor head 22 to be used in an optimized manner in order to keep the overall height of the floor head 22 in the height direction 74 low and thus to enable good access under furniture and the like.

The second chamber 92 is separated from the third chamber 94 by a partition wall 194 (see 15 and 17 ) spatially separated. This partition wall 194 is positioned on the partition wall 86 or is part of it. With regard to fluid protection, there is therefore a first region which is formed by the partition wall 86 and which is oriented transversely to the height direction 74. There is a second region with the wall 194 which is at least approximately parallel to the height direction 74.

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

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

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

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

The receptacle 186 with the battery device 196 is in the first area 114a (see 5 ) and is thus arranged on a different side than the drive motor 104 on the base head 22 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. This provides protection against splash water.

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.

The second chamber 92 is designed such that it projects over 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 over the receiving chamber 164 (see also, for example, 5 ).

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

This results in optimized use of space.

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

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 on the second center plane 112. The recess 204 provides a recessed area.

The receptacle 186 for the battery device 196 is located next to this recess 204.

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

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, 6 ).

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.

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 1 ).

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

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

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

As a result, water or the like which accumulates in the recess 204 can flow away to the rear (towards the rear side 44).

The third chamber 94 is closed by a second cover 208. This cover 208 (compare 2 ) is removably held (by an operator) on the base head 22.

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

The hair pin device 214 is releasably positioned in the third chamber 94.

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

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.

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. Dirty 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 latter.

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 3 ).

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 10 ). When the dirty fluid tank 160 is seated 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. In the following, therefore, directions are referred to the first width direction 70, 72 when the dirty fluid tank is seated on the base head 22.

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

The mouth device 218 is located at the second region 226 and via the second region 226, dirty fluid from the cleaning roller 66 is coupled into the dirty fluid tank 160.

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 essentially corresponds to the corresponding length of the cleaning roller 66 along the rotation axis 134.

The dirt fluid tank 160 has an L-shaped design (compare 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.

There is a free space 232 between the second region 226 and the first region 224.

This free space 232 is, when the dirty fluid tank 160 is positioned in the receiving chamber 164 of the base head 22, delimited in the first width direction 70 by the second region 226, and delimited in the second width direction 72 by the first region 224.

The free space 232 is a subspace in 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 10 ). The drive motor 104 is positioned in the free space 232.

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).

The first region 224 and the second region 226 of the dirty fluid tank 160 are connected to one another and in particular are connected to one another in one piece and form a common receiving volume. The first region 224 and the second region 226 are geometric regions on the dirty fluid tank 160.

Via the second area 226, the dirt fluid tank 160 has a sort of 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 10 ).

This results in an optimized use of space and a 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.

Furthermore, this results in a high capacity for dirt fluid in the dirt fluid tank 160, even with optimized use of space.

The dirty fluid tank 160 has a basin area 234 and a lid area 236 (compare 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.

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

The cover region 236 can be formed in one piece or in multiple parts. For example, in a one-piece design, the cover region follows the L-shape of the base region 234 and can be removed as a whole.

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

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.

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, 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.

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.

It is provided in particular 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.

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 a 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 holding the dirty fluid tank and a space-saving design.

With the dirty fluid tank 160 held on the base 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.

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

The receptacle 186 for the battery device 196 projects beyond the first region 224 of the dirty fluid tank 160.

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.

The base head 22 can be assigned a diagonal (diagonal plane) 250 (cf. 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 is at a 45° angle to the said center planes 110, 112 (cf. 5 ).

The diagonal plane 250 passes through the intersection line of the mentioned median planes 110, 112.

In one embodiment (cf. 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.

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

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

The dirt fluid tank 160 can be removed or inserted on the first lateral side 76. The receiving chamber 164 faces the first lateral Page 76 has an opening 238 for the dirty fluid tank 160 (compare for example 17 or 3 ).

An insertion direction/removal direction 240 (compare for example 3 ) of the dirty fluid tank 160 on the receiving chamber 164 and thus on 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.

It is positioned transversely and in particular perpendicular 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.

The cleaning roller 66 and the dirty fluid tank 160 are removable towards the same first lateral side 76.

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.

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.

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

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 with respect to the insertion/removal direction 240. For example, the fixing device 246 is designed as a form-fitting device or snap connection.

In one embodiment, a sweeping device 248 is arranged on the dirty fluid tank 160, which is arranged in particular on the second region 226 and extends along the second width direction 72.

It is the task of the sweeping device 248 to feed coarse dirt from the floor 30 to be cleaned to the cleaning roller 66 so that it can be taken along and coupled into the dirt fluid tank 160.

The receiving chamber 164 for the dirty fluid tank 160 is open to the installation level 60 at least in a partial area. This allows the sweeping device 248 in the dirty fluid tank 160 to act on the surface of the floor 30 to be cleaned.

In one embodiment, the dirty fluid tank is suspended from the receiving chamber 164.

• Für einen Reinigungsbetrieb des Bodenreinigungsgeräts 20 wird dieses von der Bodenstation 64 entnommen. Bei dem in 1 dargestellten Zustand wird der Deckel 144 entnommen und es wird die Reinigungswalze 66 in den Aufnahmeschacht 126 gebracht und es wird der Deckel 144 geschlossen. Dies kann dadurch erfolgen, dass zuerst die Reinigungswalze 46 in den Aufnahmeschacht 126 gebracht wird und dann der Deckel 144 auf die Reinigungswalze 66 und den Bodenkopf 22 aufgesetzt wird, oder indem zunächst die Reinigungswalze 66 auf das zweite Drehlager 128 (Widerlager) an dem Deckel 144 aufgesetzt wird und dann eingeschoben wird und für eine Fixierung des Deckels 144 an dem Bodenkopf gesorgt wird.

The floor cleaning device 20 works as follows:

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

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

An operator can make an adjustment accordingly via the pivoting position of the holding 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.

The drive motor is supplied with electrical energy via the battery device 196. It drives a 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. This is taken along and detached via the scraper device 210 and via the outlet device 218 into the Dirt fluid tank 160 is coupled in. Hair is picked up via the hair pin device 214.

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

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

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.

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

The floor cleaning device 20 has a compact design. The floor head is designed to save space. The L-shape of the dirty fluid tank 160 results in optimized use of space with a large storage volume and, in particular, the ability to couple dirty fluid from the cleaning roller 66 via the outlet device 218 into the dirty fluid tank without the need for a fan.

A 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 holder 186 results in optimized splash protection (due to the arrangement facing away from the cleaning roller 66) and the arrangement above the partition wall 86.

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.

The cleaning roller 66 is supported on two sides by the rotary bearing device 132, namely by the first rotary bearing 136 and the second rotary bearing 138, which are spaced apart from one another in the second width direction 72. This allows the cleaning roller 66 to be designed with a large length and results in an optimized cleaning result.

The second pivot bearing 138 as an abutment for the first pivot bearing 136 is arranged on a removable cover 144. This allows the cleaning roller 66 to be easily removed and inserted.

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

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

As an embodiment, a floor cleaning device 20 was described above which is hand-held and in particular by a standing user.

The embodiment was described as a floor cleaning device 20 which is blower-free. It is also possible in principle for a blower device to be provided in order to vacuum the cleaning roller 66 (and possibly also the floor 30 to be cleaned). The blower device can be arranged on the holding rod device 24 or can be arranged on the floor head 22.

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) is also used on a self-propelled and self-steering floor cleaning device ("cleaning robot").

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.

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.

List of reference symbols

20

Floor cleaning device

22

Floor head

24

Holding rod device

26

Articulated device

28

Swivel axis

30

floor to be cleaned

32

proximal end

34

distal end

36

hanger

38

Control element/display element

40

Rod

42

Longitudinal axis

44

Back

46

Forward direction

48

Corpus

50

Cleaning fluid tank

52a

cheek

52b

cheek

54

Recess

56

front

58

Swivel range

60

Installation level

62

Parking position

64

Ground station

66

Cleaning roller

68

Recording

70

first latitude direction

72

second latitude direction

74

Altitude direction

76

first lateral page

78

second lateral side

80

Structural support

82

Bottom part

84

Top

86

Partition wall

88

Middle level

90

first chamber

92

second chamber

94

third chamber

96

Floor

98

Wall

100

Housing

102

Support element

104

Drive motor

106

first front side

108

second front side

110

first middle level

112

second middle level

114a

first area

114b

second area

116

Drive shaft rotation axis

118

Torque transmission device

120

Route

122

Output element

124

Rotation axis

126

Receiving slot

128

carrier

129

Handle

130

Cleaning material

132

Pivot bearing device

134

Rotation axis

136

first pivot bearing

138

second pivot bearing

140

first front side

142

second front side

144

Lid

146

roller bearing

148

Pen

150

Recess

152

Direction

154

Fixation device

156

moving element

158

Bridge

160

Dirty fluid tank

162

Opposite direction

164

Recording chamber

166

Recording room

168

partition wall

170

Recording room

172

first lid

174

circuit

176

magnetic valve

178

Feeding device

180

Nozzle device

182

first recess

184

second recess

186

Recording

188

third recess

190

opening

192

bulge

194

Wall

196

Battery setup

198

Insertion/removal direction

200

opening

202

End

204

Recess

206

holder

208

second lid

210

Scraper device

212

Scraper bar

214

Hairpin device

216

Sub-area

218

Muzzle device

220

first tank width direction

222

second tank width direction

224

first area

226

second area

228

first arm

230

second arm

232

free space

234

Pelvic area

236

Lid area

238

opening

240

Insertion/removal direction

242

Housing element

244

Handle element

246

Fixation device

248

Sweeping device

250

Diagonal plane

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

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Claims (37)

Floor cleaning device, comprising a floor head (22), at least one cleaning roller (66) which is rotatable about an axis of rotation (134), and a drive motor (104) for the at least one cleaning roller (66), characterized in that the floor head (22) has a first chamber (90) and a second chamber (92), that a partition wall (86) is provided which spatially separates the first chamber (90) and the second chamber (92) from one another, 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 device (196) are arranged in the second chamber (92). Floor cleaning device according to Claim 1 , characterized in that during operation of the floor cleaning device, at least in a partial area an interior of the first chamber (90) is exposed to dirt and/or liquid, and that the second chamber (92) is protected by the partition wall (86) against the penetration of dirt and liquid. Floor cleaning device according to Claim 1 or 2 , characterized in that the floor head (22) is assigned a mounting plane (60) for mounting on a floor (30) to be cleaned, with at least one of the following: - the dividing wall (86) between the first chamber (90) and the second chamber (92) is oriented at least with a partial area transverse to a normal (74) of the mounting plane (60); - the second chamber (92) is arranged above the first chamber (90) with respect to a height direction (74) which is perpendicular to the mounting plane (60). Floor cleaning device according to Claim 3 , characterized by at least one of the following: - the second chamber (92) is closed; - the first chamber (90) is open at least in a partial area and in particular towards the at least one cleaning roller (66). Floor cleaning device according to one of the preceding claims, characterized by at least one of the following: - the first chamber (90) comprises a receiving chamber (164) for a dirty fluid tank (160); - the first chamber (90) comprises a receiving shaft (126) for the at least one cleaning roller (66) and/or the receiving shaft (126) is arranged on the first chamber (90). Floor cleaning device according to one of the preceding claims, characterized in that the second chamber (92) is closed by a first cover (172). Floor cleaning device according to Claim 6 , characterized by at least one of the following: - the first cover (172) is permanently connected to the base head (22); - the first cover (172) closes off the second chamber (92) at the top with respect to a height direction (74); - the first cover (172) at least partially forms an upper side of the base head (22); - the first cover (172) is designed in several parts or with several regions. Floor cleaning device according to one of the preceding claims, characterized in that the second chamber (92) and/or a first cover (172) of the second chamber (92) has a recess (204) or bulge or depression which has a recessed region relative to an upper side of the floor head (22). Floor cleaning device according to Claim 8 , characterized in that at least one of the following is positioned on the recessed area: - at least one holder (206) for a cleaning roller (66); - a holder (206) for a holding rod device (24); - a joint device (26) for a holding rod device (24), via which the holding rod device (24) is held pivotably relative to the floor head (22). Floor cleaning device according to Claim 8 or 9 , characterized in that the base head (22) has a first width direction (70) transverse to the axis of rotation (134) and a second width direction (72) parallel to the axis of rotation (134), with at least one of the following: - the recess (204) or bulge or depression extends along the first width direction (70) and has an extension in the second width direction (72); - the recess (204) or bulge or depression is open to a front side (56) and/or a rear side (44) of the base head (22); - a receptacle (186) for a battery device (196) and/or a battery device (196) is arranged next to the recess (204) or bulge or depression with respect to the first width direction (70); - the at least one cleaning roller (66) is arranged in front of the recess (204) or bulge or depression relative to the first width direction (70) fung arranged; - a scraper device (210) for scraping dirty fluid from the at least one cleaning roller (66) and/or a hairpin device (214) for receiving hair is arranged in front of the recess (204) or bulge or depression with respect to the first width direction (70); - a third chamber (94) is arranged in front of the recess (204) or bulge or depression with respect to the first width direction (70). Floor cleaning device according to one of the preceding claims, characterized in that a third chamber (94) is arranged on the floor head (22), wherein the second chamber (92) is closed in a fluid-tight manner with respect to the third chamber (94) by the partition wall (86) or a further wall (194). Floor cleaning device according to Claim 11 , characterized by at least one of the following: - the third chamber (94) is arranged in front of the second chamber (92) in the direction of the at least one cleaning roller (66); - the third chamber (94) is arranged above at least a partial region of the at least one cleaning roller (66) in relation to a height direction (74); - a scraper device (210) for scraping dirt fluid from the at least one cleaning roller (66) and/or a hairpin device (214) is positioned on the third chamber (94) in a particularly removably manner; - the third chamber (94) is closed by a removable second cover (208), in particular with at least one of the following: - the second cover (208) at least partially forms an upper side of the base head (22); - the second cover (208) is flush with a first cover (172) of the second chamber (92); - the second cover (172) is removable from the base head (22) in a direction transverse to the axis of rotation (134). Floor cleaning device according to one of the preceding claims, characterized in that the partition wall (86) has a first region which separates the first chamber (90) from the second chamber (92) in a splash-proof manner. Floor cleaning device according to Claim 13 , characterized in that the partition wall (86) has a second region or that a further partition wall (194) is provided which separates the second chamber (92) from a third chamber (94) in a fluid-tight manner, wherein in particular the second region or the further partition wall (194) is oriented transversely and in particular perpendicular to the first region. Floor cleaning device according to Claim 13 or 14 , characterized in that the first region forms a bottom for the third chamber (94). Floor cleaning device according to one of the preceding claims, characterized in that the floor head (22) comprises a structural support (80) on which the partition wall (86) is formed or arranged, wherein the structural support (80) holds at least one of the following: - the drive motor (104); - a torque transmission device (118) which serves to transmit torque from the drive motor (104) to the at least one cleaning roller (66); - a dirty fluid tank (160), which is in particular removable from the floor head (22); - a battery device (196) or a receptacle (186) for a battery device (196); - a valve (176) and/or a pump; - the electronic components (174); - a holding rod device (24); - at least a part of a pivot bearing device (132) for the at least one cleaning roller (66); - a housing (100); - a support device for supporting the floor head (22) on a floor to be cleaned (30); - a blower device. Floor cleaning device according to Claim 16 , characterized in that the structural support (80) is designed as a support plate or comprises a support plate. Floor cleaning device according to one of the preceding claims, characterized in that the partition wall (86) has at least one recess (182; 184; 188) or at least one bulge or at least one depression on which functional components (174; 176) are seated. Floor cleaning device according to Claim 18 , characterized in that the at least one recess (182; 184; 188) or at least one bulge or at least one depression are outside an area at which a dirty fluid tank (160) is positioned. Floor cleaning device according to Claim 18 or 19 , characterized by at least one of the following: - the partition wall (86) has a first recess (182) or a first bulge or a first depression, on which at least a part the electronic components (174) are seated; - the partition wall (86) has a second recess (184) or a second bulge or a second depression on which a battery device (196) and/or receptacle (186) for a battery device (196) is seated; - the partition wall (86) has a third recess (188) or a third bulge or a third depression on which the solenoid valve (176) is seated. Floor cleaning device according to one of the Claims 18 until 20 , characterized by at least one of the following: - the at least one recess (186; 184; 188) or at least one bulge or at least one depression points into the first chamber (90) and increases the receiving volume of the second chamber (92). Floor cleaning device according to Claim 20 or 21 , characterized in that a dirty fluid tank (160) is positioned between the first recess (182) or first bulge or first depression and the at least one cleaning roller (66) and/or between the second recess (184) of the second bulge or second depression and the at least one cleaning roller (66). Floor cleaning device according to one of the preceding claims, characterized in that the partition wall (86) has a further recess (204) or further bulge which is arranged above the drive motor (104) and/or a torque transmission device (118) with respect to a height direction (74). Floor cleaning device according to one of the preceding claims, characterized in that the partition wall (86) extends from a rear end of the floor head (22) to the at least one cleaning roller (66). Floor cleaning device according to one of the preceding claims, characterized in that the partition wall (86) extends between opposite lateral sides (76, 78) of the floor head (22). Floor cleaning device according to one of the preceding claims, characterized in that the partition wall (86) has one or more openings between the second chamber (92) and the first chamber (90), wherein in particular a total area of these openings is at most 5% of a total area of the partition wall (86) and in particular at most 3% and in particular at most 2.5% of the total area of the partition wall (86), wherein the total area of the partition wall (86) is related to the area of the partition wall (86) for the second chamber (92). Floor cleaning device according to one of the preceding claims, characterized by a cleaning liquid tank (50) which provides cleaning liquid to the at least one cleaning roller (66) and/or a floor to be cleaned (30) via a nozzle device (180). Floor cleaning device according to Claim 27 , characterized by at least one of the following: - the cleaning liquid tank (50) is positioned on the base head (22) or on a holding rod device (24); - a supply device (178) for cleaning liquid is provided, via which cleaning liquid flows from the cleaning liquid tank (50) to the nozzle device (180); - a solenoid valve (176) is arranged on the cleaning liquid tank (50) or a supply device (178) for cleaning liquid to the nozzle device (180). Floor cleaning device according to one of the preceding claims, characterized in that a dirty fluid tank (160) is positioned on or in the first chamber (90) and in particular that during operation of the floor cleaning device, dirty fluid is coupled into the dirty fluid tank (160) without the use of a fan from the at least one cleaning roller (66). Floor cleaning device according to Claim 29 , characterized by at least one of the following: - a battery device (196) and/or a receptacle (186) for a battery device (196) is arranged with a partial region relative to a height direction (74) above an area on the base head (22) on which the dirty fluid tank (160) is located; - the battery device (196) and/or a receptacle (186) for the battery device (196) protrudes above the dirty fluid tank (160); - a wall region (194) which delimits the second chamber (92) is arranged relative to a height direction (74) above an area on which the dirty fluid tank (160) is located. Floor cleaning device according to one of the preceding claims, characterized in that a torque transmission device (118) for torque transmission from the drive motor (104) to the at least one cleaning supply roller (66) is arranged on or in the first chamber (90). Floor cleaning device according to one of the preceding claims, characterized in that a rotary bearing device (132) for the at least one cleaning roller (66) is arranged at least partially on or in the first chamber (90). Floor cleaning device according to one of the preceding claims, characterized in that a partition wall (168) is arranged on the first chamber (90), which separates a first partial space from a second partial space, wherein the drive motor (104) and/or a torque transmission device (118) is positioned in the first partial space and a dirty fluid tank (160) is positioned in the second partial space. Floor cleaning device according to one of the preceding claims, characterized in that the dirty fluid tank (160), when positioned on the floor head (22), extends in a first width direction (70) which is transverse to the axis of rotation (134) and extends in a second width direction (72) which is parallel to the axis of rotation (134), that the dirty 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 width 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 positioned in front of a first end face (106) of the drive motor (104) with respect to the second width direction (72). Floor cleaning device according to one of the preceding claims, characterized in that a receiving shaft (126) for the at least one cleaning roller (66) is arranged on the floor head (22), that the rotary bearing device (132) comprises a first rotary bearing (136) which is fixedly arranged on the floor head (22) and is positioned on the receiving shaft (126), that the rotary bearing device (132) has a second rotary bearing (138) which is arranged on a cover (144) for the receiving shaft (126), wherein the cover (144) is movable 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 rotary bearing (136) and on the second rotary bearing (138) as an abutment to the first rotary bearing, and that the at least one cleaning roller (66) is removable from the cover (144). Floor cleaning device according to one of the preceding claims, characterized by being designed as a hand-held floor cleaning device with a holding rod device (24) which is pivotably mounted on the floor head (22). Floor cleaning device according to one of the Claims 1 until 35 , characterized by a design as a self-propelled and self-steering floor cleaning device.

Images