WO2017153450A1

WO2017153450A1 - Surface-cleaning machine

Info

Publication number: WO2017153450A1
Application number: PCT/EP2017/055396
Authority: WO
Inventors: Thomas BÖRKIRCHER; Andreas MÜLLER; Rainer Kurmann; Thomas Zerrer; Ralph Diehl; Justin Henry; Marius ZERWES; Henning Hayn
Original assignee: Alfred Kärcher Gmbh & Co. Kg
Priority date: 2016-03-09
Filing date: 2017-03-08
Publication date: 2017-09-14
Also published as: WO2017152970A1; CN108882821B; EP3426121B1; CN114601385A; EP3426123A1; CN108882820A; EP3426121A1; CN108882820B; PL3426121T3; CN114601385B; CN108882821A

Abstract

The invention relates to a surface-cleaning machine, comprising a cleaning head (14) with a driven cleaning roller unit (18) having an axis of rotation (58), wherein, during a cleaning operation, the surface-cleaning machine is supported to a surface to be cleaned (16) only by means of the cleaning roller unit (18) or is supported to the surface to be cleaned (16) by means of the cleaning roller unit (272) and a further support device (292); and further comprising a drive motor (28) for the cleaning roller unit (18) and a dirty fluid tank device (66) which is removably arranged at the cleaning head (14).

Description

Surface cleaning machine

The invention relates to a surface cleaning machine, comprising a cleaning head with a driven cleaning roller unit with an axis of rotation.

From WO 2010/041185 AI a surface cleaning machine with rotating brushes is known.

From US 7,665,174 B2, a cleaning head for a floor cleaning machine is known.

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

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

US Pat. No. 7,921,497 B2 discloses a floor scrubber which is manually operated and comprises a drive roller which is coupled to a scrub roller.

From the non-prepublished applications PCT / EP2015 / 073275,

PCT / EP2015 / 072929, PCT / EP2015 / 073529, PCT / EP2015 / 073116,

PCT / EP2015 / 073478 surface cleaning machines are known. From the non-prepublished PCT / EP2015 / 073315 is also a

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

From DE 20 2009 013 434 U l a device for floor-wet cleaning with a brush, which is rotatable about an axis of rotation known.

From CN 201 197 698 Y a cleaning machine is known. From US 6,026,529 a device for cleaning floors or other hard surfaces is known.

From WO 2005/087075 AI a floor cleaning machine with a handle is known, which is pivotally mounted on a base.

From WO 2015/086083 AI another floor cleaning machine is known.

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

The invention has for its object to provide a surface cleaning machine of the type mentioned, which provides optimized cleaning results with ease of operation. This object is achieved according to the invention in the surface cleaning machine mentioned above, that in a cleaning operation

Surface cleaning machine is supported only on the cleaning roller unit with the rotation axis on a surface to be cleaned, a drive motor for the cleaning roller unit is provided, and a dirt fluid tank means is provided, which is removably mounted on the cleaning head. The fact that the surface cleaning machine is supported only on the cleaning roller unit on a surface to be cleaned, there is a relatively simple construction of the surface cleaning machine, which can be realized with low weight.

The cleaning roller unit comprises or is a one-piece or multi-part cleaning roller with a single axis of rotation. In a multi-part cleaning roller unit, all subunits have the same coaxial axis of rotation and in the cleaning mode, all subunits rotate about the same axis of rotation in the same direction of rotation at the same rotational speed and the drive motor drives all subunits.

Furthermore, cleaning can then also be carried out in areas which are difficult to access, since the space requirement for the cleaning head can be kept low. The driven cleaning roller unit also acts as a support device; As a result, no further driving elements such as wheels or the like must be provided. By a removable Schmutzfluidtankeinrichtung on the cleaning head, the way for dirt fluid from the cleaning roller unit to the dirty fluid tank means can be kept small, so that a simple coupling is possible. Due to the removability of the Schmutzfluidtankeinrichtung of the cleaning head can be emptied in a simple way and also clean. It can absorb a large amount of dirt fluid including a liquid. In particular, the dirty fluid tank device as a whole can be removed from the cleaning head or used as a whole in it, so that a high degree of filling for the dirty fluid tank device can also be achieved with liquid. It is thereby even possible to realize a coupling of dirt fluid from the cleaning roller unit to the dirty fluid tank device without suction fan or it can be provided to support a suction fan, which has a relatively low power consumption and thus a relatively low energy consumption.

The surface cleaning machine can be operated energy-saving. As a result, it is again possible to supply the surface cleaning machine and in particular the drive motor with a preferably rechargeable battery device with electric current. The surface cleaning machine can be operated independently of the mains.

It is favorable if the cleaning roller unit is or comprises a wiper roller unit. It can thereby perform a wet cleaning, especially on a hard floor. In particular, the wiping roller unit is moistened and by the rotation of the wiper roller unit can then just according to moisten a soil to be cleaned and it can dissolve dirt and mechanically detach by the rotation of the wiper roller unit and take.

In one embodiment, the cleaning roller unit comprises a wiping roller unit and a sweeping roller unit. The arrangement is in particular such that the sweeping roller unit is connected upstream of the wiping roller unit with respect to a normal cleaning operation. It is thus possible to perform a sweeping process on a surface to be cleaned, in particular before a wiping process. The sweeping roller unit can in particular form an additional support of the cleaning head on a surface to be cleaned. It is advantageous if the surface cleaning machine is supported in the cleaning operation on the wiping roller unit and the sweeping roller unit on the surface to be cleaned. For example, a self-propelled and self-steering cleaning head ("cleaning Implementing robot "), which both a sweeping process and

(Wet) wiping process on the surface to be cleaned can perform.

It is advantageous if the dirty fluid tank device comprises a common receptacle (a common container) for debris from the sweeping roller unit and for dirt fluid from the wiper roller unit. Kehrgut is the dirt fluid from the sweeping roller unit. Due to the dirty fluid tank device, dirt fluid can accordingly be absorbed by the surface to be cleaned.

It may alternatively be provided that the Schmutzfluidtankeinrichtung separate shots for debris from the sweeping roller unit and for

Contains dirt fluid from the wiper roller unit. For example, it may be provided with a separate receptacle for dry dirt fluid (for debris) and wet dirt fluid (for dirt fluid from the wiping roller unit).

In particular, one or more receptacles (reservoirs) of dirty fluid dirty fluid tank means are releasably positioned on the cleaning head between the sweeping roller unit and the wiping roller unit. This results in a space-saving design of the cleaning head. This can be realized in particular self-propelled and self-steering.

The further support device is, for example, a roller unit with one or more rollers and in particular with one or more cleaning rollers (such as one or more sweeping rollers), and / or the support device is at least one roller or comprises a roller, and / or the support device at least one sliding element or comprises such. It can thereby form an additional support. In particular, a self-propelled and self-steering cleaning head can thus be realized in a simple manner. The support device can provide the travel drive (completely or partially). The support device can also be used for a drive or an additional drive of the cleaning head. she may also be designed for additional or sole steering of the cleaning head.

It is favorable if the cleaning roller unit comprises one or more cleaning rollers or partial cleaning rollers which are driven by the same drive motor, wherein different cleaning rollers or partial cleaning rollers have identically oriented axes of rotation or have differently oriented axes of rotation. This results in optimized operating options, in particular for a self-propelled and self-steering cleaning head. In the case of differently oriented rotation axes, steerability can be realized in a simple manner, for example via different actuations with respect to rotational speed and / or rotational direction. It is favorable if a longitudinal extension axis of the dirty fluid tank device is oriented parallel to the (in particular single) rotation axis of the cleaning roller unit. The longitudinal extension axis of the dirty fluid tank device extends between a first end side and a second opposite end side of the dirty fluid tank device. It specifies the longest extension of the dirty fluid tank device. This results in a space-saving arrangement of the dirty fluid tank device on the cleaning head.

It is also favorable if a motor axis of the drive motor is oriented transversely and in particular perpendicular to a longitudinal extension axis of the dirty fluid tank device. The motor axis of the drive motor corresponds to a rotor axis of the drive motor. Due to the transverse orientation to the longitudinal axis of the Schmutzfluidtankeinrichtung results in a space-saving design.

It is particularly advantageous if the dirty fluid tank device is arranged between the cleaning roller unit and the drive motor. This results in a short Einkopplungsweg for coupling of Dirt fluid from the cleaning roller unit in the Schmutzfluidtankeinrichtung. In turn, it is sufficient to use a suction fan with a relatively low power for the suction of dirt fluid or it is a suction fan-free training possible.

In one embodiment, a torque transmitting transmission device is provided, which is arranged between the drive motor and the cleaning roller unit, the Schmutzfluidtankeinrichtung having a top and a bottom, the underside facing a cleaning roller holder of the cleaning roller unit and the top of the bottom faces away, and wherein the transmission device is guided past the underside or at the top of the dirty fluid tank device. The transmission device provides the torque transmission from the drive motor to the cleaning roller unit. The cleaning roller unit is positioned at a distance from the drive motor. The transmission device ensures, in particular, a speed reduction, torque deflection and possibly a bridging of distances. By passing the transmission device on the underside or top side of the dirty fluid tank device results in a simple compact design. In principle, it is also possible that the transmission device is performed by a through opening in the Schmutzfluidtankeinrichtung. In a comparison of the transmission device on the underside or top side results in comparison to a simplified removability of the dirty fluid tank means of the cleaning head and a simplified design of the dirty fluid tank means.

In one embodiment, the dirty fluid tank device has a recess in which at least one partial region of the transmission device is positioned when the dirty fluid tank device is fixed to the cleaning head. Through the corresponding free space of the recess, a space is provided in which the transmission device can be positioned. This results in an optimized adaptation of the geometric shape of the

Dirt fluid tank device to the cleaning head. In one embodiment, a device body is provided, on which the cleaning head is arranged, wherein at least one of the following devices is positioned on the device body: a tank device for cleaning fluid; a valve means for supplying cleaning fluid to the cleaning head; a battery device for the drive motor; a holding rod device for holding and / or guiding the surface cleaning machine; a filter device for cleaning fluid; at least partially the drive motor. This results in a compact structure. In particular, elements of the surface cleaning machine which have a relatively high weight, such as the drive motor, can be positioned far down in the vicinity of the cleaning head. On the device body can also be positioned, for example, a removable tank means for cleaning fluid. Protected in the housing, a valve device for the supply of cleaning fluid to the cleaning head and also a filter device for the cleaning fluid can be positioned on the device body. Furthermore, the battery device can be optimally positioned, in particular if the drive motor itself is arranged on the device body. It can also be provided that the drive motor is at least partially positioned in the device body. For example, the device body is used to "anchor" the drive motor to the surface cleaning machine.

It is advantageous if the drive motor is arranged at least partially between the device body and the cleaning head, wherein it is in particular at least partially disposed in the device body. As a result, for example, a battery device can be arranged in an optimized manner on the device body. Furthermore, torque transmission from the drive motor to the cleaning roller unit on the cleaning head can be realized in a simple manner. The drive motor can thereby (relative to a proper operation with aufgestützter on the surface to be cleaned cleaning roller unit) arranged relatively far down, so that there is a simple operation. It can be with such an arrangement also realize in a simple manner a pivoting between the cleaning head and the device body.

It is advantageous if the cleaning head is pivotable about a pivot axis relative to the drive motor and / or the device body, wherein the pivot axis is oriented in particular parallel or coaxial with a motor axis of the drive motor. This results in extended operating options; it improves the access to confined areas of the area to be cleaned, since the device body can be repositioned adjusted to the cleaning head. A corresponding pivot bearing can be formed in a simple manner, for example by encapsulating the drive motor as an inner sleeve and an outer sleeve arranged on the device body are designed so that a pivot bearing is realized. In one embodiment, a cleaning roller holder, on which the cleaning roller unit is positioned, has a receiving chamber with a receiving space for the dirty fluid tank device. The receiving chamber may be formed mehrkammerig and the receiving space may include a plurality of subspaces. In principle, subspaces can be connected to one another in a fluid-effective manner or can be separated from each other in a fluid-efficient manner.

In particular, the receiving chamber is associated with a fixing device, by which the Schmutzfluidtankeinrichtung can be fixed on the receiving chamber, the fixing device for the removability of the Schmutzfluidtankeinrichtung from the cleaning head is detachably formed and in particular the fixing device is designed so that the Schmutzfluidtankeinrichtung to the receiving chamber by positive locking is held in a holding position. This makes it possible in a simple manner to achieve a fixation of the dirty fluid tank device on the receiving chamber. Furthermore, the Schmutzfluidtankeinrichtung can be easily removed to empty them and optionally clean. Furthermore, the fixing device can be designed such that the dirty fluid tank device is positioned with an inlet opening defined to the cleaning roller unit. As a result, in particular a stripping guide device can be positioned defined relative to the cleaning roller unit. In a structurally simple embodiment, the fixing device comprises at least one pivotable flap or is such. Due to the pivotable flap, the receiving chamber can be released in a simple manner such that the dirty fluid tank device can be inserted or removed. By the flap, when acting on the dirty fluid tank means, further, a holding position of the dirty fluid tank means can be secured. Furthermore, the flap may be configured to apply some bias to position the dirty fluid tank means defined on the receiving chamber, in particular to position an entry port of the dirty fluid tank means and / or optionally a scraper blade defined relative to the cleaning roller unit.

A pivoting axis of the at least one flap is expediently aligned at least approximately parallel to a rotational axis of the cleaning roller unit. This results in a simple structural design. The Schmutzfluidtankeinrichtung can be easily removed and replaced.

It is favorable if the at least one flap acts on an upper side of the dirty fluid tank device, which faces away from a lower side, wherein the underside of the dirty fluid tank device faces a bottom of the receiving chamber when the dirty fluid tank device is fixed to the cleaning head. As a result, a holding position of the dirty fluid tank device on the receiving chamber can be secured in a simple manner. Furthermore, a defined positioning can be achieved.

It is favorable if the at least one flap is designed as a hold-down device, which holds the dirty fluid tank device in relation to the cleaning fluid. ing roller unit defines positioned and / or positioned in the receiving space and in particular the dirt fluid tank means in a holding position against a bottom of the receiving chamber suppressed. As a result, the dirt fluid tank device can be easily removed or replaced by an operator and, as it were, an automatic positioning can be achieved; the operator does not have to worry about the exact positioning.

For example, the at least one flap is spring-loaded and / or designed to be elastic such that the dirty fluid tank device is held in the receiving space with a bias. This bias ensures that the inlet mouth of the dirty fluid tank means is in a defined position relative to the cleaning roller unit. In a structurally simple embodiment, at least one recess is arranged on the upper side of the dirty fluid tank device and the at least one flap has at least one counter element for immersion in the at least one recess. As a result, it is possible in a simple manner to block the mobility of the dirt fluid tank device on the receiving chamber in a withdrawal direction.

It is furthermore advantageous if the at least one recess has at least one undercut and the at least one counter element has a blocking element adapted to the at least one undercut, which blocks mobility of the dirty fluid tank device in one direction away from a bottom of the receiving chamber when at least one flap is closed , It can thereby achieve a positive connection, which ensures falling out in the holding position of the dirty fluid tank means. Furthermore, this makes it possible in a simple manner to achieve a positioning of the dirty fluid tank device relative to the cleaning roller unit. In particular, the receiving chamber and the Schmutzfluidtankeinrichtung are adapted to be adapted to each other, that in a holding position of the

Schmutzfluidtankeinrichtung on the receiving chamber a mobility of the dirty fluid tank means is transversely locked to a vertical of a bottom of the receiving chamber. This results in a simple way a

Fixation. The floor then provides a blockage of mobility parallel to the vertical of the floor and the flap provides for blocking the mobility in the opposite direction thereto. In one embodiment, the dirty fluid tank means comprises one or more hinged lids. By opening the hinged lid, the Schmutzfluidtankeinrichtung can be emptied and, if necessary, this can be cleaned easily. The hinged lid forms, in particular, an upper side of the dirty fluid tank device, onto which the at least one flap of the fixing device can act.

In one embodiment, the dirty fluid tank means is formed as a unit. This can include one or more chambers. As a whole, it can be removed from the cleaning head or used in it. In principle, it is also possible for the dirty fluid tank device to have mutually separate subunits which can be removed individually from the cleaning head or can be used on it. In one embodiment, the cleaning roller unit is formed in two parts (is a two-part cleaning roller) with a first part and a second part, wherein the first part of the cleaning roller unit, a first chamber of the dirty fluid tank means and the second part of the cleaning roller unit, a second chamber of the dirty fluid tank means assigned and in particular, the drive motor acts on a central region which lies between the first part and the second part. The central area is, for example, the middle area of a wave. This results in a space-saving and structurally simple training for the Torque transmission from the drive motor to the cleaning roller unit with the (exactly one) axis of rotation. In particular, this allows the drive motor to be positioned so that its motor axis is transverse to the axis of rotation of the cleaning roller unit.

It is advantageous if a stripping guide device for dirty fluid is provided, which acts on the cleaning roller unit and which is arranged on an inlet opening of the dirty fluid tank device. Dirt can be detached from the cleaning roller unit by means of the wiper guide, and the detached dirt can be coupled in in particular into the dirty fluid tank device via the inlet mouth.

In particular, the scraper-guide is arranged and configured such that dirt fluid, which is entrained by the cleaning roller unit, which is removed by stripping the cleaning roller unit and is directed to the input mouth of the dirty fluid tank means. The coupling of dirt fluid at the inlet mouth into the dirty fluid tank device can at least partially take place via a baffle effect also by the action of the centrifugal force. It can at least partially dirt fluid via the wiper guide at the entrance mouth in the

Dirty fluid tank means are thrown.

It is particularly advantageous if the wiping guide device is designed so that dirt fluid is free of suction fan through the wiping Leiteinrich- device at the inlet mouth of the dirty fluid tank in the

Dirty fluid tank device is passed. The wiping guide is then arranged in particular directly at the inlet mouth of the dirty fluid tank device. In particular, the stripping guide itself forms a wall of the inlet mouth. This results in a total of a structurally simple construction of the surface cleaning machine, since no suction fan with fan motor, vacuum lines and the like must be provided. Furthermore, no separator must be provided. It is also advantageous if, based on a direction of rotation of the cleaning roller unit, the stripping guide is arranged downstream of the inlet mouth. As a result, dirt fluid can be detached from the cleaning roller unit via a stripping effect and directed into the dirty fluid tank device.

It is particularly advantageous if the wiping guide protrudes into a trimming of the cleaning roller unit. As a result, dirt fluid can be released from the cleaning roller unit via a wiping effect. It is advantageous if the wiping guide is rounded or chamfered on an edge which projects into the trimming of the cleaning roller unit and which faces the entrance mouth. This results in a sparing of stocking fibers. Furthermore, the rotational drive of the cleaning roller unit can be operated energy-saving.

It is particularly advantageous if the stripping guide protrudes with a depth of at least 5% of a thickness of the stocking in the stocking, based on a wet stocking. It is basically possible for the wiping guide to be arranged on a cleaning roller holder. In one embodiment, the wiper guide is disposed on the dirty fluid tank means and removable with the dirty fluid tank means from the cleaning head. When the dirt fluid tank device is positioned at a holding position on the cleaning head, the wiping guide is then automatically defined "correctly" positioned relative to the cleaning roller unit.

In particular, the wiping guide is formed by one or more edge elements, that is formed by one or more strips, which have corresponding edges, which may protrude in particular in the trimming of the cleaning roller unit. Preferably, an edge element at least partially forms a wall of the entrance mouth. It is also advantageous if a sweeping element is arranged on the cleaning head, through which the cleaning roller unit coarse dirt can be supplied for driving through the cleaning roller unit. In particular, an inlet mouth of the dirty fluid tank means is positioned between the scraper guide and the sweeper. As a result, coarse dirt, which has been supplied via the sweeping element of the cleaning roller unit, can be taken along by the cleaning roller unit and scraped off at the wiper guide device.

It is particularly advantageous if a battery device and in particular a rechargeable battery device for supplying the drive motor with electrical energy is provided. As a result, the surface cleaning machine can be operated independently of the power supply. This results in a simple operation.

It is also advantageous if the drive motor is arranged between the battery device and the cleaning head. This results in an optimized positioning of the battery device.

It is also advantageous if a tank device is provided for cleaning fluid. It can thereby moisten the surface to be cleaned directly or indirectly (by moistening the cleaning roller unit). The cleaning liquid is in particular water, to which a chemical cleaning agent can be admixed. The cleaning liquid makes it possible to moisten dirt on the surface to be cleaned in order to obtain improved solubility.

In a structurally simple embodiment, the cleaning liquid tank means is positioned above the cleaning roller unit with respect to the direction of gravity when the surface cleaning machine is operated in a proper cleaning operation with the cleaning roller unit mounted on the surface to be cleaned. A supply of cleaning Transfer liquid to the cleaning head and in particular to the cleaning roller unit then takes place solely by gravity. There is no need to provide an additional pump for pumping cleaning fluid.

It is favorable if an inlet mouth of the dirty fluid tank device has a longitudinal extension direction, which is oriented parallel to a rotation axis of the cleaning roller unit. As a result, dirt fluid can be coupled into the dirty fluid tank device over a large length range.

The surface cleaning machine is designed in particular as a hand-operated or hand-guided surface cleaning machine. As a result of the support via the cleaning roller unit on the surface to be cleaned, an operator can hold the surface cleaning machine on an end facing away from the cleaning head (so that it can not tip over) and guide it on the surface to be cleaned.

In one embodiment, the cleaning head is designed to be self-propelled and self-steering. It can thereby realize a cleaning robot and in particular wiping robot. The cleaning roller unit is in particular a wiping roller unit with one or more wiping rollers. Such a wiping roller can then in particular perform a wet cleaning on a surface and in particular on a hard floor. It can also be realized a sweeping function. Such a sweeping function can be realized, for example, via a separate sweeping roller unit and / or via a sweeping edge, which is a wiping roller unit. Due to the self-propelled and self-steering design of the cleaning head automatic surface cleaning can be performed.

In particular, the surface cleaning machine comprises the cleaning head and the stationary station, opposite which the cleaning head is movable, the fixed station being provided for at least one of the following is: storage of the cleaning head in a non-cleaning operation of the cleaning head; Charging a battery device, which is arranged on the cleaning head; defined discharge or partial discharge of the battery device, which is arranged on the cleaning head; Cleaning the cleaning roller unit of the cleaning head; Emptying the dirty fluid tank device; Filling the tank for cleaning fluid with cleaning fluid. The stationary station forms a kind of docking station for the cleaning head. It is particularly advantageous if a drive drive of the cleaning head is provided via the cleaning roller unit and / or the further support device. As a result, the cleaning head can be self-propelled.

For the same reasons, it is favorable if a steerability of the cleaning head via the cleaning roller unit and / or by the other

Support device is provided. This makes it possible to realize a self-steering cleaning head, in particular for a wiping robot.

In one embodiment, it is provided that a rotational drive of one or more cleaning rollers of the cleaning roller unit via the drive motor takes place in a clockwise and counterclockwise direction. As a result, for example, a reversal of direction for a movement of the cleaning head can be realized. Furthermore, it can be realized by a steerability.

In one embodiment, the cleaning roller unit comprises at least a first cleaning roller with a first orientation of the axis of rotation and a second cleaning roller with a second orientation of the axis of rotation, wherein the first orientation and the second orientation are at an angle different from 0 ° and 180 ° to each other. In particular, the cleaning rollers of the cleaning roller unit are arranged triangularly to one another. It can be achieved in a simple manner, a travel drive and a steering drive for the cleaning head. The cleaning rollers of Cleaning roller unit (which are in particular wiping rollers) are responsible for cleaning and self-propelled and self-steering training. By different rotational speeds or by different rotational senses on the first cleaning roller and the second cleaning roller can be realized in a simple manner a steerability. Furthermore, there is a good cleanability at corners, edges, connections of walls and the like.

In particular, a wedge-shaped arrangement of the first cleaning roller and the second cleaning roller is provided on the cleaning head, wherein in particular a wedge tip is in the region of a front end of the cleaning head. As a result, a self-propelled and self-steering implementation for the cleaning head can be achieved in a simple manner. This results in a high cleaning effect for near-edge areas.

It is also advantageous if a rotation of the first cleaning roller and a rotation of the second cleaning roller are independently drivable, in particular by appropriate control of the first cleaning roller and the second cleaning roller, a change in direction of the cleaning head is made possible. It results in structurally simple construction a steerability for a self-propelled and self-steering training of the cleaning head.

The following description of preferred embodiments is used in connexion with the drawings, the detailed explanation of the invention, show: a perspective view of an embodiment of a surface cleaning machine according to the invention; a further perspective view of a cleaning head of the surface cleaning machine according to Figure 1, wherein a connection is indicated to a device body; Figure 3 is a side view of the cleaning head of Figure 2 with removed Schmutzfluidtankeinrichtung; a partial sectional view in the plane E of Figure 1; an enlarged view of the area A of Figure 4 with fixed Schmutzfluidtankeinrichtung; the same view as Figure 5, wherein a fixing device is in such a position that the Schmutzfluidtankeinrichtung is removable; the same view as Figure 5 in an intermediate position; a perspective view of an embodiment of a Schmutzfluidtankeinrichtung; a view of the dirty fluid tank device according to Figure 8 in the direction B; a side view of the Schmutzfluidtankeinrichtung according to Figure 8 in the direction C; a schematic representation of another embodiment of a surface cleaning machine according to the invention with a stationary station and a self-propelled cleaning head; Figure 12 is a perspective view of an embodiment of a self-propelled cleaning head; Figure 13 is an enlarged view of the area D in the cleaning head of Figure 12;

Figure 14 is a sectional view of another embodiment of a self-propelled cleaning head;

FIG. 15 shows an exploded view of the cleaning head according to FIG. 14;

FIG. 16 is a schematic partial sectional view of a further embodiment of a cleaning head according to the invention; and

Figure 17 is a schematic partial sectional view of another embodiment of a cleaning head according to the invention. An embodiment of a surface cleaning machine according to the invention, which is shown in Figure 1 and in Figures 2 to 10 in

Partial view is shown and designated 10, is designed in particular as a hand-held and hand-held floor cleaning machine for hard floors.

The surface cleaning machine 10 comprises a device body 12 and a cleaning head 14. The cleaning head 14 is arranged on the device body 12. In a cleaning operation on a surface 16 to be cleaned, the surface cleaning machine 10 is supported by a cleaning roller unit 18 and in particular a single cleaning roller unit 18 on the surface 16 to be cleaned. The cleaning roller unit 18 has a single axis of rotation (see below). The cleaning roller unit 18 is a cleaning roller, which may be in one or more parts. In the embodiment described below, the cleaning roller unit 18 is a two-part cleaning roller. The device body 12 has a longitudinal axis 20. The surface cleaning machine 10 is stalked or stalk guided. For this purpose, a holding rod device 22 is seated on the device body 12. In one exemplary embodiment, the holding rod device 22 comprises a (in particular exactly one) holding rod 24, which has a longitudinal extent parallel to the longitudinal axis 20. At an upper portion of the holding rod device 22, a handle 26 and in particular a bow handle is arranged. An operator can hold on this handle 26 with one hand the surface cleaning machine 10 and on the surface to be cleaned 16 (with mounted cleaning roller unit 18) lead.

The holding rod device 22 may be designed to be variable in length or length-fixed with respect to a length in the longitudinal axis 20.

The surface cleaning machine 10 is dimensioned such that when the cleaning roller unit 18 is supported on the surface 16 to be cleaned, an operator can conveniently perform a cleaning operation on the surface 16 to be cleaned with an angled support arm. In particular, a length of the area cleaning machine 10 in the longitudinal axis 20 between the cleaning roller unit 18 and the bow handle 26 is in a range between 60 cm and 130 cm.

In particular, one or more operating elements are arranged on the handle 26. For example, a switch is arranged, via which the surface cleaning machine 10 can be switched on or off for a cleaning operation. By this switch, the operation of a drive motor 28 for a rotational operation of the cleaning roller unit 18 is switchable. Furthermore, a switch for actuating a valve device 38 (see below) may be provided.

The device body 12 comprises a housing 30 in which components of the surface cleaning machine 10 are arranged protected. On the housing 30, a holder 32 is arranged. On the holder 32, a tank means 34 for cleaning liquid (in particular water with or without an additional cleaning agent) is removably arranged.

On the housing 30, a tank receptacle 36 for the tank device 34 is arranged on the holder 32. A corresponding outlet of the tank device 34 can be connected to the tank receptacle 36. In the housing 30, the tank receptacle 36 is positioned downstream of a valve device 38.

From the valve device 38, one or more fluid lines 40 lead to the cleaning head 14.

The valve device 38 has a shut-off valve, via which the supply of cleaning fluid from the tank means 34 to the cleaning head 14 is switchable lockable. The valve device 38 may be associated with a filter device 39 for cleaning fluid. The filter device 39 is in particular connected upstream of the blocking valve and arranged between the valve device 38 and the tank receptacle 36.

When the shut-off valve is open, cleaning liquid can flow from the tank device 34 through the fluid line or fluid lines 40 to the cleaning head 14 and act on the surface 16 to be cleaned.

For this purpose, one or more outlet openings for cleaning liquid are provided on the cleaning head 14. It is in principle possible that the outlet or outlet orifices are arranged so that the surface to be cleaned 16 is applied directly with cleaning liquid.

In an advantageous variant, the outlet or outlet orifices are arranged so that the cleaning roller unit 18 and in particular special a stocking 42 of the cleaning roller unit 18 is acted upon with cleaning liquid. When the cleaning roller unit 18 is acted upon by cleaning fluid, the surface 16 to be cleaned is then indirectly exposed to cleaning fluid.

The trim 42 is made in particular of a textile material.

The valve means 38 is associated with a switch by which the user can set whether the check valve of the valve means 38 is locked (that is, the inflow of cleaning liquid to the cleaning head 14 is locked), or whether the check valve is open (that is, the inflow for Cleaning fluid from the tank means 34 is released to the cleaning head 14). This switch can be arranged on the housing 30. It is also possible in principle that the switch is arranged on the handle 26.

In one embodiment, a battery device 44 for the electrical power supply of the drive motor 28 is arranged in the housing 30. The battery device 44 is rechargeable. As a result, the surface cleaning machine 10 can be operated independently of a mains supply.

But it is also possible in principle that the surface cleaning machine 10 is operated by mains power. It is then a corresponding connection device for mains power to the surface cleaning machine 10 is arranged.

The battery device 44 may be removable from the device body 12 in order to perform a recharging on a corresponding charger.

It can also be provided that a corresponding charging device is integrated into the device body 12 and recharging can be carried out without removing the battery device 44 from the device body 12 is. Corresponding connection sockets are arranged for example on the support rod 24.

The drive motor 28 is an electric motor. It has a motor shaft 46. The motor shaft 46 is coaxial with a rotation axis of the drive motor 28.

The drive motor 28 is seated between the cleaning head 14 and the housing 30 on the device body 12. In one embodiment, the motor shaft 46 is oriented at an angle to the longitudinal axis 20 of the device body 12 (and the support rod 24). The angle between the motor axis 46 and the longitudinal axis 20 is for example in the range between 150 ° and 170 °. In one embodiment, the cleaning head 14 is pivotable about a pivot axis 48 (see Figures 2 and 3) with respect to the apparatus body 12. This pivoting is indicated in Figure 2 by the double arrow with the reference numeral 50. In particular, the pivot axis 48 is coaxial with the motor axis 46.

In one embodiment, the drive motor 28 is disposed on an inner sleeve 52. This inner sleeve 52 preferably forms an encapsulation of the drive motor 28.

An inner sleeve 52 is seated in the outer sleeve 54. The inner sleeve 52 is pivotable about the pivot axis 48 relative to the outer sleeve 54, wherein the inner sleeve 52 is pivotally mounted in the outer sleeve 54. The inner sleeve 52 and the outer sleeve 54 form a pivot bearing 56 for the pivoting of the cleaning head 14 relative to the device body 12. The drive motor 28 is pivotable about the pivot axis 48 relative to the device body 12. Corresponding supply lines from the battery device 44 to the drive motor 28 are arranged and adapted to allow the pivoting. Accordingly, the fluid conduit 40 or the fluid conduits 40 are designed to allow this pivoting. The pivot bearing 56 has a basic position, which is defined, for example, in that (the only) an axis of rotation 58 of the cleaning roller unit 18 is oriented perpendicular to the plane E according to FIG. A pivoting about the pivot axis 58 relative to this basic position is expressed in an angular position of the rotation axis 58 to the plane E.

The pivot bearing 56 is set in particular such that a relative to a normal cleaning operation requires special effort to effect a pivoting of the cleaning head 14 from its normal position.

The pivoting of the cleaning head 14 about the pivot axis 48 allows improved cleaning options even in less accessible places, as it were, the device body 12 with the Haltestab- device 22 relative to the surface to be cleaned 16 can be "repositioned".

The cleaning head 14 has a cleaning roller holder 60, on which the cleaning roller unit 18 is rotatable about the rotation axis 58. The cleaning roller holder 60 is rotatably connected to the inner sleeve 52.

The cleaning roller holder 60 has a holding region 62 for the cleaning roller unit 18, and a receiving chamber 64 for a dirty fluid tank device 66 (cf., for example, FIG.

The receiving chamber 64 is positioned between the holding portion 62 and the inner sleeve 52. The inner sleeve 52 is in particular fixedly connected to an outer side of the receiving chamber 64. The cleaning roller unit 18 is torque-effectively coupled to the drive motor 28 via a transmission device 68. The transmission device 68 operatively connects a motor shaft of the drive motor 28 (which rotates about the motor axis 46) to a shaft 70 for the cleaning roller unit 18.

The transmission device 68 comprises in one embodiment a speed reducer. This serves to reduce a speed in comparison to the speed of the motor shaft. For example, a standard electric motor has speeds of the order of 7000 revolutions per minute. The speed reducer reduces the speed to, for example, about 400 revolutions per minute.

The speed reducer may be disposed in the inner sleeve 52 or outside the inner sleeve 52 on the cleaning roller holder 60.

The speed reducer is formed, for example, as a planetary gear.

The transmission device 68 further comprises an angle gear, which provides for a torque deflection, to cause a drive of the cleaning roller unit 18 with the rotation axis 58 transversely (and in particular perpendicular) to the motor axis 46. The angular gear is in particular downstream of the speed reducer.

In one embodiment, the angular gear on one or more gears, which are rotatably coupled to a corresponding shaft of the speed reducer. These act on a bevel gear to

Angle conversion. The transmission device 68 further includes, in one embodiment, a belt which is torque-operatively coupled to the bevel gear and acts on the shaft 70. The belt bridges the distance between the shaft 70 and the angle gear and ensures a speed reduction.

In one embodiment, the cleaning roller unit 18 is formed in two parts with a first part 72 and a second part 74. The first part 72 is non-rotatably mounted on a first side of the shaft 70 and the second part 74 is non-rotatably seated on one of the first side of the shaft 70 opposite the second Page.

In an intermediate region 76 between the first part 72 and the second part 74, the transmission device 68 is guided and coupled to the shaft 70. They have the same axis of rotation 58.

The cleaning roller unit 18 or the first part 72 and the second part 74 of the cleaning roller unit 18 have a sleeve 78 (cf., for example, FIG. 5), which is cylindrical. On the sleeve 78 of the stocking 42 is arranged. About the sleeve 78, the cleaning roller unit 18 and the first part 72 and the second part 74 is fixed to the shaft 70.

The cleaning roller unit 18 is arranged on the cleaning head 14 such that the rotation axis 58 is oriented perpendicular to the longitudinal axis 20.

The cleaning roller unit 18 has a length along the rotation axis 58 between a first end face 80 (which is formed on the first part 72) and a second end face 82 (which is formed on the second part 74), which is considerably larger than a corresponding width of the device body 12 perpendicular to the longitudinal axis 20. In particular, a length of the cleaning roller unit 18 between the first end face 80 and the second end face 82 is at least 20 cm and preferably at least 25 cm. The receiving chamber 64 has a bottom 84 (see, for example, Figure 5). On the floor 84, a receiving chamber wall 86 is arranged transversely oriented to this. The receiving chamber wall 86 and the bottom 84 of the receiving chamber 64 define a receiving space 88 for the

Dirty fluid tank 66.

The bottom 84 opposite the receiving space 88 is open. Via a corresponding side 90, the dirty fluid tank device 66 can be removed from or inserted into the receiving space 88. A removal direction or insertion direction 92 (see Figure 6) is substantially perpendicular to the bottom 84 (and perpendicular to the axis of rotation 58). In one embodiment, the receiving chamber wall 86 has a step 96 at a wall portion 94 of the receiving chamber wall 86. The wall region 94 in this case faces the holding region 62.

The step 96 is further disposed near the bottom 84.

The receiving chamber 64 is associated with a fixing device 98, via which the Schmutzfluidtankeinrichtung 66 can be fixed to the receiving chamber wall 86 in a holding position 100 (Figure 5). The fixation is done in particular by positive locking.

In one embodiment, the fixing device 98 comprises a flap 102, which is arranged pivotably about a pivot axis 104 by means of a pivot bearing 106 on the cleaning head 14. The pivot bearing 106 is positioned at or in the vicinity of the inner sleeve 52.

The pivot axis 104 is oriented parallel to the rotation axis 58 of the rotation roller 18. In the holding position 100, the flap 102 acts on the Schmutzfluidtankeinrichtung 66 and holds them on the receiving chamber 64 in the receiving space 88. To remove the Schmutzfluidtankeinrichtung 66 of the cleaning head 14, starting from this holding position 100, the flap 102 in the direction of the device body 12 pivotally (see in FIG. 6, indicated by reference numeral 108) in order to release the dirty fluid tank device 66 so that it can be removed from the receiving space 88 in the removal direction 92 on the side 90 and can be removed from the cleaning head 14.

The Schmutzfluidtankeinrichtung 66 (Figures 8 to 10) is formed as a unit. It has a first chamber 110, which is associated with the first part 72 of the cleaning roller unit 18, and has a second chamber 112 which is associated with the second part 74 of the cleaning roller unit 18.

The first chamber 110 receives dirty fluid originating from the first part 72 of the cleaning roller unit 18, and the second chamber 112 receives dirt fluid coming from the second part 74 of the cleaning roller unit 18.

In principle, it is possible for the first chamber 110 and the second chamber 112 to be connected to one another in a fluid-efficient manner, and for example to be fluid-effectively connected to a common discharge opening.

It can also be provided that the first chamber 110 and the second chamber 112 are fluid-tightly separated from one another and each chamber 110, 112 has its own outlet opening.

The first chamber 110 and the second chamber 112 are spaced apart; between the first chamber 110 and the second chamber 112 has the Schmutzfluidtankeinrichtung 66 a recess 114. The recess 114 is arranged with respect to a longitudinal extension axis 116 of the dirty fluid tank device 66 in a central region of the dirty fluid tank device 66.

When the dirty fluid tank device 66 is fixed to the cleaning head 14 in the holding position 100, the longitudinal extension axis 116 is oriented parallel to the rotation axis 58 of the cleaning roller unit 18. The longitudinal axis 116 of the dirty fluid tank 66 extends between a first outer end 118 and a second outer end 120 of the dirty fluid tank 66, with the dirty fluid tank 66 having its largest length dimensions between the first outer end 118 and the second outer end 120.

The recess 114 is used to carry out at least a portion of the transmission device 68. The cleaning roller unit 18 is driven centrally. The transmission device 68 bridges the distance between the drive motor 28 and the shaft 70. The recess 114 saves on the

Schmutzfluidtankeinrichtung 86 to a certain extent the space area, which receives the transmission device 68.

It can be provided that the receiving chamber 64 has a respective receiving space 88 for the first chamber 110 and the second chamber 112.

It is also possible that a common receiving space 88 is provided for the first chamber 110 and the second chamber 112. The first chamber 110 and the second chamber 112 are connected to each other via a bridge 122, so that the dirty fluid tank device 66 forms a unit and as a whole is removable from the cleaning head 14 or can be inserted into it. In one embodiment, the dirty fluid tank means 66 includes a lid flap 124 pivotally seated over spaced pivot bearings 126a, 126b on the first chamber 110 and the second chamber 112.

The lid flap 124 can be opened to provide a corresponding discharge opening for the first chamber 110 and the second chamber 112 and, if appropriate, to be able to clean the dirty fluid tank device 66 in an interior space.

In an embodiment shown in FIGS. 8-10, the first chamber 110 and the second chamber 112 are fluid tightly isolated from one another. The lid flap 124 is a common lid flap for both the first chamber 110 and the second chamber 112. By opening the lid flap 124, both the first chamber 110 and the second chamber 112 can then be emptied or access to the first chamber 110 and the second chamber 112 to perform a corresponding cleaning. The lid flap is with the first chamber 110 and / or the second

Chamber 112 and / or the bridge 122 can be fixed such that when the lid flap 124 is closed, a fluid-tight dirty fluid tank means 66 (except for an inlet mouth) is provided. It is fundamentally possible for the dirty fluid tank device 66 to also comprise mechanically separate chambers, with one chamber then being assigned to the first part 72 and the second part 74 of the cleaning roller unit 18. In this case, the corresponding parts of the dirty fluid tank device must then be removed or used separately from the cleaning head 14.

The Schmutzfluidtankeinrichtung 66 has a bottom 128, which on an outer side of the bottom 84 respectively at the first chamber 110 and at the second chamber 112 is formed. It also has an underside 128 opposite top 130, which is formed on an outer side of the lid flap 124. On the upper side 130 of the dirty fluid tank device 66 and thus on the cover flap 124, a recess 132 (or a plurality of recesses 132) is formed. The recess or recesses 132 are channel-shaped and have an undercut surface 134. The flap 102 has a counter element 136 (or a plurality of counter elements 136), which serve for cooperation with the recess 132.

On the counter element 136 or the counter elements 136, a blocking element 138 is arranged (Figures 5 to 7), which serves for cooperation with the undercut surface 134. When the counter element 136 is immersed with its blocking element 138 in the recess 132 and the holding position 100 is reached, then the blocking element 138 bears against the undercut surface 134. As a result, the flap 102 is locked against pivoting away from the upper side 130 of the dirty fluid tank device 66. A corresponding force must be applied to guide the blocking element 138 away from the undercut surface 134.

The dirty fluid tank 66 is positioned relative to the flap 102 and the receiving chamber 64 such that when the dirty fluid tank 66 is positioned in the holding position 100 on the receiving chamber 64, the blocking element 138 is immersed in the recess 132 and correspondingly on the undercut surface 134 rests and thus secures the holding position 100. In one embodiment, the dirty fluid tank 66 has a stage 140 adapted to the stage 96 (see, for example, Figure 6). When the dirty fluid tank 66 is inserted into the receiving space 88, the receiving chamber wall 86 blocks mobility of the dirty fluid tank 66 in the receiving space 88 in the transverse directions to the removal / insertion direction 92.

This positive locking is optionally supported by the steps 96, 140.

The bottom 84 of the receiving chamber 64 prevents "dousing" the Schmutzfluidtankeinrichtung 66 during insertion.

When the flap 102 is closed and the blocking element 138 is positioned in the recess 132 against the undercut surface 134, movement is blocked parallel to the withdrawal direction 92 about the holding position 100 of the dirty fluid tank device 66 on the receiving chamber 64.

The flap 102 is designed in particular as a hold-down device, which ensures a defined positioning of the dirty fluid tank device 66 in relation to the cleaning roller unit 18.

The flap 102 is in particular so elastically arranged or formed that in the holding position 100, the flap 102 exerts a corresponding positioning force and in particular while the Schmutzfluidtank- device 66 against the bottom 84 and the wall portion 94 is pressed. Pressing against the wall region 94 is also assisted by cooperation of the step 96 with the wall region 94 with the step 140 in the dirty fluid tank 66. It can be provided that the flap 102, for example, on the

Swivel bearing 106 is spring-supported. Alternatively or additionally, the flap 102 may be formed, for example, on the counter element 136 such that a corresponding elastic force on the Schmutzfluidtankeinrichtung 66 is exercisable.

The cleaning head 14 has a scraper guide 142 (see Fig. 5) which acts on the cleaning roller unit 18 (and thereby on the first part 72 and the second part 74) and serves to remove dirt fluid (in particular water) entrained by the cleaning roller unit 18 with dirt particles) and an inlet mouth 144 of the dirty fluid tank means 66, which is fixed in the holding position 100 to the cleaning head 14 supply. As a result, dirt fluid is then coupled into the dirty fluid tank device 66.

The inlet mouth 144 of the dirty fluid tank device 66 has a slot-like design (FIG. 9). It includes a first part 146, which is an entry port for the first chamber 110, and includes a second part 148, which is an entry port for the second chamber 112.

In the exemplary embodiment shown in FIG. 9, the first part 146 and the second part 148 each have a greater length in the longitudinal extension axis 116 than the associated chamber 110 or 112. The dirty fluid tank device 66 has at the end of the inlet opening 144 on the first part 146 and on the second part 148 a respective wall in order to be able to supply dirt fluid collected via the first part 146 and the second part 148 of the inlet mouth 144 to the first chamber 110 or the second chamber 112, respectively.

The first part 146 of the inlet mouth 144 is associated with the first part 72 of the cleaning roller unit 18. The second part 148 of the inlet mouth 144 is assigned to the second part 74 of the cleaning roller unit 18. The first part 146 and the second part 148 of the inlet mouth 144 are spaced from one another according to the spacing of the first part 72 and the second part 74. Preferably, the first part 146 and the second part 148 each have a length in the longitudinal extension axis 116 which corresponds at least approximately to a corresponding stocking length of the first part 72 and the second part 74 of the cleaning roller unit 18 along the axis of rotation 58.

The scraper diverter 142 is configured to scrape dirt fluid therefrom from the cleaning roller unit 18 and into the entrance mouth 144.

It is possible that when rotating cleaning roller unit 18, a conductive effect on the effect of the centrifugal force is achieved and to some extent dirt fluid is thrown into the Schmutzfluidtankeinrichtung 66. The scraper guide 142 is spaced from the axis of rotation 58.

In one embodiment (cf., for example, FIG. 5), the wiping guide device 142 protrudes with a depth T into the stocking 42 of the cleaning roller unit 18. The depth T is in particular at least 5% of a thickness D (FIG. 5) of the stocking 42 of the cleaning roller unit 18 based on a wet condition of the stocking 42.

The wiping guide 142 is in particular formed by one or more edge elements 150. For example, the first part 72 and the second part 74 of the cleaning roller unit 18 is associated with a respective edge element 150.

An edge element 150 is designed as a strip, which protrudes into the stocking 42 of the cleaning roller unit 18 on the first part 72 and the second part 74 accordingly.

The edge element 150 has a relatively small thickness, which is in particular smaller than a thickness D of the trim 42. In one embodiment, the edge member 150 or the edge members 150 are curved. The scraper guide 142 with the edge member 150 or the

Edge elements 150 forms in particular a wall of the entrance mouth 144.

The one or more edge elements 150 are rounded or chamfered at an edge facing the entrance mouth 144. As a result, fibers of the stocking 42 are spared and it must be overcome in the rotation of the cleaning roller unit 18 a small force. This in turn achieves an energy-saving effect. This rounding at the edge is indicated by the reference numeral 151 in FIG.

It may in principle be provided that the wiping guide 142 is arranged on the cleaning roller holder 60.

In the embodiment shown, the scraper guide 142 is seated on the dirty fluid tank 66.

This has a wall 152, which faces the wall region 94 in the holding position 100. The edge element or elements 150 are arranged on the corresponding wall 152 of the first chamber 110 and the second chamber 112.

The corresponding stripping guide device 142 is preferably arranged outside the cover flap 124 of the dirty fluid tank device 66. In this embodiment, the scraper guide 142 is removed from the cleaning head 14 when the dirty fluid tank 66 is removed therefrom. It is further contemplated that at the cleaning head 14 of the cleaning roller unit 18 associated with a cover 154 is positioned. The cover 154 is subsequently disposed of the stripper baffle 142 (with the edge element (s) 150). The edge element 150 is formed curved so that it is adapted to a corresponding curvature of the cleaning roller unit 118 with the stocking 42.

Basically, the cover 154 may touch or penetrate the trim 42, preferably penetrating to a lesser depth than the penetration of the scraper guide 142 across the depth T.

In one embodiment, the fluid line 40 opens or open the fluid lines 40 in a region 156 between the cover 154 and the scraper-guide 142. In this area, the cleaning roller unit 18 can be acted upon with cleaning liquid from the tank means 34.

In particular, the region 146 has a length along the rotation axis 58 which corresponds at least approximately to a corresponding length of the first part 72 and the second part 74 of the cleaning roller unit 18, respectively, to allow a uniform liquid loading of the cleaning roller unit 18 over its length.

In the embodiment shown, the cover 154 is at the

Dirty fluid tank means 66 arranged.

It must then be ensured that appropriate coupling of the fluid line 40 or fluid lines 40 is achieved. Based on a rotational direction 158 (see FIG. 5) of the cleaning roller unit 18 in a cleaning operation, the wiping guide 142 with its edge element 150 or its edge elements 150 is arranged downstream of the inlet mouth 144. This is a "slinging" of dirt fluid, which was previously taken by the cleaning roller unit 18 from the surface to be cleaned 16 and was transported in the direction of the scraper guide 142, via the scraper guide 142 in the inlet mouth 144 and thereby in the Schmutzfluidtankeinrichtung 66 allows.

The cleaning roller unit 18 in one embodiment is further associated with a sweeping element 160 which serves to supply coarse dirt to the cleaning roller unit 18. This can then be taken with the cleaning roller unit 18.

The entrance port 144 is disposed between the stripper baffle 142 on the sweeping element 160. In the embodiment shown, the sweeping element 160 is positioned on the cleaning roller holder 60 at the holding portion 62. The sweeping element 160 is designed so that it at least in an angular position range (if the surface cleaning machine 10 is not too steep) of the surface cleaning machine 10 with respect to the longitudinal axis 20 to the surface 16 to be cleaned on the surface 16 to be cleaned for the Can act sweeping function.

The sweeping element 160 is for example arranged pivotably on the cleaning roller holder 60 and / or it is designed to be elastic.

In particular, the sweeping element 160 projects into the stocking 42 of the cleaning roller unit 18. However, it can also touch the stocking 42 or be spaced apart from it. Based on the direction of rotation 158 of the cleaning roller unit 18, when it is driven by the drive motor 28 in its rotational movement, follows on the surface 16 to be cleaned first the sweeping element 160, then a guide portion 162 of the cleaning roller holder 60, which in its shape (hollow) is cylindrical and is adapted to the cleaning roller unit 18, then the entrance mouth 144, thereon the wiper guide 142 with the edge element (s) 150 and then the cover 154, the area 156 between the cover 154 and the wiper guide - device 142 is located.

In the embodiment shown, the surface cleaning machine 10 is formed without a suction fan. Dirt fluid, which is entrained by the cleaning roller unit 18, is not sucked into the dirty fluid tank device 66 by an additional suction fan, but the wiper guide 142 alone ensures that dirt fluid enters the dirty fluid tank

Schmutzfluidtankeinrichtung 66 is coupled.

In principle, it is also possible that the coupling is still supported by an additional suction fan.

The surface cleaning machine 10 works as follows:

In a cleaning operation, the dirty fluid tank device 66 is fixed to the cleaning head 14 in the holding position 100.

For a cleaning process, the surface cleaning machine 10 is placed alone on the cleaning roller unit 18 on the surface 16 to be cleaned. The drive motor 28 drives the cleaning roller unit 18 in a rotational movement about the (single) rotation axis 58 in the direction of rotation 158.

The cleaning roller unit 18 is supplied with cleaning fluid from the tank device 34.

Dirt on the surface 16 to be cleaned is moistened when the moistened stocking 42 of the cleaning roller unit 18 acts on it to facilitate its releasability. The rotation of the cleaning roller unit 18 causes a mechanical action on dirt on the surface 16 to be cleaned in order to obtain better detachability from the surface 16 to be cleaned.

Any coarse dirt can be supplied to the sweeping element 160 of the cleaning roller unit 18.

Dirt fluid (dirt particles, cleaning liquid with dissolved dirt) is taken by the cleaning roller unit 18 and on the scraper guide 142, the dirty fluid from the cleaning roller unit 18 is released and (among other things, under the action of centrifugal force) into the inlet port 144 and passes from there into the Dirtfiidtankinrichtung 66. The wiper guide 142 provides by stripping for a solution of dirt fluid from the stocking 42 of the cleaning roller unit 18th

The coupling of dirt fluid into the Schmutzfiuidtankeinrichtung 66 takes place in particular without suction fan. The dirty fluid tank 66 is detachably positioned on the cleaning head 14.

The flap 102 provides a backup of the stop position 100. In the stop position 100, the inlet mouth 144 of the dirty fluid tank 66 is also aligned relative to the cleaning roller unit 18 in relation to the wiper guide 142 so that the corresponding release function and engagement function is achieved as described above.

The flap 102, with its function as a hold-down device, ensures that the edge element 150 or the edge elements 150 with the depth T are correspondingly pressed into the stocking 42 in order to achieve an optimum stripping function by stripping. In particular, the scraper guide 142 is disposed on the dirty fluid tank 66 and removable therefrom by the cleaning head 14. The flap 102 presses with its counter element 136 and the blocking element 138 disposed thereon on the top side 130 of the dirty fluid tank device 66 and thereby secures the holding position in which the above-described relative positioning of the scraper guide 142 to the cleaning roller unit 18 is achieved.

A positive retention of the dirty fluid tank device 66 on the receiving chamber 64 in the holding position 100 is provided.

To remove the dirty fluid tank device 66 (FIG. 3, FIGS. 6, 7), the flap 102 is opened. It is pivoted in the direction of the device body 12. In order to guide the blocking element 138 out of the recess 132 with the undercut surface 134, a corresponding elastic deformation of the counter element 136 must be carried out. When the flap 102 (FIG. 6) is completely open, the dirty fluid tank 66 can then be removed (compare FIG. 3).

By opening the cover flap 124 of the dirty fluid tank device 66, it can be emptied and optionally cleaned, for example, by rinsing.

For example, the dirty fluid tank 66 has a capacity of about 150 ml. The surface cleaning machine 10 has a relatively low energy requirement, since no suction fan must be provided and dirt fluid is coupled directly from the cleaning roller unit 18 with "minimized path" in the Schmutzfluidtankeinrichtung 66. The surface cleaning machine 10 can therefore be operated optimally with a rechargeable battery device 44. By the surface cleaning machine according to the invention can be a

Wet cleaning of hard floors with a high degree of automation. The force required during wiping is reduced or eliminated by the mechanical support via the driven rotation roller 18. The moistening of the cleaning roller unit 18 allows an operator to perform a cleaning operation without coming into contact with dirty fluid.

In addition, in a cleaning operation, self-cleaning of the cleaning roller unit 18 follows to some extent.

The dirty fluid tank 66 is disposed between the cleaning roller unit 18 and the drive motor 28. A longitudinal direction of the inlet mouth 144, which is parallel to the longitudinal axis 116, is parallel to the axis of rotation 58 of the cleaning roller unit 18 and transversely and in particular perpendicular to the motor axis 46. Further, this longitudinal axis of the entrance mouth 144 is transverse and in particular perpendicular to the longitudinal axis 20th

It may be provided that the drive motor 28 is also used to drive one or more suction turbines, which are respectively in fluid communication with an interior of the dirty fluid tank means 66 to create a negative pressure that enhances the coupling of dirty fluid into the dirty fluid tank means , In principle, the surface cleaning machine 10 can also be operated in network operation. The sweeping element 160 may also be disposed on the dirty fluid tank 66.

It may be provided an overload protection. This is designed for example as a mechanical overload protection, which includes, for example, a slip clutch. It may alternatively or additionally be provided an electronic overload protection, which performs, for example, an overcurrent trip. In a normal cleaning operation, the tank device 34 is arranged above the cleaning head 14 with respect to the direction of gravity.

As a result, cleaning fluid can flow under the effect of gravity from the tank device 34 to the cleaning head 14 in a pump-free manner in order to act on the surface 16 to be cleaned directly or indirectly via the cleaning roller unit 18 with cleaning fluid.

The surface cleaning machine 10 may be designed so that the sweeping element 160 is effective only when a certain angular position is adjusted relative to the longitudinal axis 20 to the surface 16 to be cleaned and in particular an angle between the surface 16 to be cleaned and the longitudinal axis below a Maximum angle is.

In a cleaning operation, the surface cleaning machine 10 is moved over the surface 16 to be cleaned by a user. Due to the rotational drive of the cleaning roller unit 18, no or only little effort is required for a movement perpendicular to the axis of rotation 58 forward. Directional changes are initiated by the operator via a corresponding force. Another example of a cleaning machine 202 (FIGS. 11 to 13) comprises a fixed station 204 (docking station) and a cleaning head 206. The cleaning head 206 is self-propelled and self-steering. He can perform cleaning operations and in particular wiping operations on the surface to be cleaned 16 independently.

The cleaning head 206 comprises a cleaning roller unit 208 (see FIG. 13), a drive motor 210 for the cleaning roller unit 208, a battery device 212 for supplying the drive motor 206 with electrical energy, a dirty fluid tank device 214 for collecting dirty fluid, and a tank device 216 for cleaning fluid. The dirty fluid tank device 214 and / or the tank device 216 for cleaning fluid are in particular arranged detachably on the cleaning head 206.

Stationary station 204 may perform various tasks, such as storage (storage) of cleaning head 206 in a non-cleaning operation; Charging the rechargeable battery device 212; Discharge or partial discharge of the battery device 212 after completion of a cleaning operation; Discharge of the dirty fluid tank means 214 after completion of a cleaning operation; Filling the tank means 216 for cleaning fluid; Cleaning the cleaning roller unit 208 after completing a cleaning operation.

In particular, provision is made for a device which makes it possible for the cleaning head 206 to be used "as required", for example when a lower threshold for the charge of the battery device 212 is detected, and / or when an upper threshold for a fill level of the dirty fluid tank device 214, and / or reaching a lower threshold for filling the tank means 216, automatically returns to the stationary station 204. In one exemplary embodiment, a connection 218 is arranged on the cleaning head 206, via which the stationary station 204 can act on the cleaning head 206, for example for charging the battery device. tion 212 (or discharge), or to an emptying of Schmutzfluidtank- device 214, or to a filling of the tank means 216th

In this case, a single connection 218 with different sub-connections can be provided, or correspondingly separate connections can be provided.

The cleaning head 206 has a body 220 to which the cleaning roller unit 208, the drive motor 210, the battery device 212, the dirty fluid tank device 214 and the cleaning fluid tank device 216 are respectively arranged.

In one embodiment (FIG. 13), the cleaning roller unit 208 of the cleaning head 206 includes a first cleaning roller 222 having a first orientation 224 of a corresponding axis of rotation. It further comprises a second cleaning roller 226 with a second orientation 228 of the axis of rotation.

The first orientation 224 and the second orientation 228 are at an angle other than 0 ° and 180 °, that is, they are not coaxial with each other. This results in a wedge-shaped configuration with an actual or imaginary wedge tip 230 (see FIG. 12) at a front end of the cleaning head 206. It is provided that the first cleaning roller 222 and the second cleaning roller 226 communicate with the rotational axis with the first orientation 224 and of the second orientation 228 are driven by the same drive motor 210. It is provided to a corresponding transmission. In principle, it is also possible that a separate drive motor is provided for each cleaning roller. In particular, each cleaning roller 222, 226 of the cleaning roller unit 208 again has sub-rollers 232a, 232b, with the sub-rollers 232a, 232b seated on a shaft 234 and an engagement area for the drive motor 210 (or gearbox) on the shaft 234 at a central area the corresponding first cleaning roller 222 or 226 is arranged relative to the respective sub-rollers 232a, 232b. There then takes place for each cleaning roller 222, 226 a center attack.

It is particularly possible, for example via appropriate design of a transmission, that the first cleaning roller 222 and the second cleaning roller 226 are operable at different rotational speeds and optionally with different directions of rotation.

A driving drive of the cleaning head 206 takes place by corresponding rotation on the cleaning roller unit 208. Steering can be achieved by different rotational speeds and / or rotational directions for the first cleaning roller 222 and the second cleaning roller 226.

Otherwise, the cleaning head 206 functions as described above.

In a cleaning operation, the cleaning head 206 travels over the surface 216 to be cleaned. The cleaning rollers 222, 226 of the cleaning roller unit 208 are "moistened" by cleaning liquid of the tank device 216.

From the surface to be cleaned 16 dissolved dirt is taken by the cleaning rollers 222, 226, on a scraper, which may be particularly firmly connected to the Schmutzfluidtankeinrichtung 214, dissolved and transported into the Schmutzfluidtankeinrichtung 214.

The cleaning head 206, by its self-propelled and self-steering training cleaning activities and in particular wiping activities independently as "wiping robot" perform. A further embodiment of a cleaning head 240 of a surface cleaning machine according to the invention (FIGS. 14, 15) comprises a body 242. A wiper roller unit 246 which can be driven in rotation about a rotation axis 244 is arranged on the latter. A corresponding drive motor is provided (not shown in FIG. 14).

Spaced to the wiping roller unit 246, a brush roller unit 250, which can be driven rotatably about an axis of rotation 248, is arranged on the body 242. The sweeping roller unit 250 and the wiping roller unit 246 form a cleaning roller unit 252 of the cleaning head 240.

The sweeping roller unit 250 may include its own drive motor, or the drive motor for the wiping roller unit 246 may be provided for driving the sweeping roller unit 250.

In particular, when separate drive motors are provided for the wiping roller unit 246 and the cleaning roller unit 252, an apparatus for driving the wiping roller unit 256 and the sweeping roller unit 250 is provided at the same rotational speed.

On the body 242 a removable Schmutzfluidtankeinrichtung 254 is arranged. In one embodiment, the dirty fluid tank means 254 includes a reservoir 256 (a tank) for receiving dirty fluid.

The container 256 is arranged so that "wet" dirty fluid coming from the wiping roller unit 246 can be received in the container 256. It is in particular a scraper 258 (stripping guide 258) of

Wiper roller unit 246 assigned, which ensures a corresponding detachment of dirt fluid from stocking the wiper roller unit 246 and feed to the container 256. The wiper 258 is fixedly connected to the container 256 in one embodiment. The container 256 of the dirty fluid tank means 254 is arranged so that it can also receive debris from the sweeping roller unit 250; Sweepings are the "dry" soil fluid provided by the sweeping roller unit 250.

The sweeping roller unit 250 is associated with a sweeping edge 262, which is formed in a ramp shape. The sweeping edge 262 provides a supply of debris to the container 256.

As mentioned above, in particular, the container 256 is detachable from the cleaning head 240.

It is provided in particular that the Schmutzfluidtankeinrichtung 254 and in particular the container 256 between the wiper roller unit 246 and the sweeping roller unit 250 are positioned. It forms a common receptacle of dirty fluid from the cleaning roller unit 252 and thereby the wiping roller unit 246 and the sweeping roller unit 250.

On the body 242, a tank means 260 for cleaning liquid is arranged. Cleaning liquid can be provided from this of the wiping roller unit 246, in particular "from above".

When the cleaning head 240 is properly placed on the surface 16 to be cleaned, the tank means 260 is positioned above the container 256 with respect to the surface 16 to be cleaned. In one embodiment, it is provided that the cleaning head 240 is supported on the surface to be cleaned 16 via the cleaning roller unit 252 and thereby both via the wiping roller unit 246 and via the sweeping roller unit 250. With reference to the wiping roller unit 246, the broom unit 250 forms a further supporting device for the support on the surface 16 to be cleaned. An at least partial travel drive (see below) of the cleaning head 240 for movement on the surface 16 to be cleaned takes place via a rotational movement of the wiping roller unit 246 and / or the sweeping roller unit 250.

There may be provided a corresponding steering device for a steering.

In the cleaning head 240, the dirty fluid tank means 254 has a common dirty fluid receptacle 256 from the wiping roller unit 246 and the sweeping roller unit 250.

In a further embodiment of a cleaning head 270 (FIG. 16), a cleaning roller unit 272 comprises a wiping roller unit 274 and a sweeping roller unit 276. The wiping roller unit 274 and the sweeping roller unit 276 are arranged side by side in relation to each other and in particular touching each other such that a dirty fluid tank device 278 forms a common receptacle 280 for dirt fluid from the wiping roller unit 274 and the sweeping roller unit 276.

The contact between sweeping roller unit 276 and wiping roller unit 274 is in particular such that bristles of the sweeping roller unit 276 immerse themselves in a stocking of the wiping roller unit 274.

A scraper 282 is provided, which dissolves dirt fluid from the wiping roller unit 274 and allows transport into the receptacle 280.

It may be provided that the sweeping roller unit 276 is arranged with respect to the wiping roller unit 274, that dirt fluid is transferred from the sweeping roller unit 276 to the wiping roller unit 274, and then "common" dirt fluid from the scraper 282 dissolved and in the

Schmutzfluidtankeinrichtung 278 is conveyed.

Otherwise, the cleaning head 270 functions as described above.

In particular, he is self-propelled and self-steering trained.

In an alternative or combinatorial embodiment of a cleaning head 290 (FIG. 17), a further support means 292 is provided for a wiping roller unit corresponding to the wiping roller unit 246 in the cleaning head 240, with associated dirt fluid tank means 256. This further support means serves to support the cleaning head 290 on the surface 214 to be cleaned. The further support means 292 is in particular spaced from the

Wiper roller unit 246 positioned.

For example, the dirty fluid container 256 is positioned between the further support means 292 and the wiping roller unit 246.

The further support means 292 serves to support the cleaning head 290 together with the wiping roller unit 246 (and optionally a sweeping roller unit 250) on the surface to be cleaned 16. For example, the further support means 292 comprises one or more sliding elements such as skids.

It is also possible that the further support means 292 comprises one or more rollers.

In principle, the further support means 292 can be driven in such a way that it supports at least the travel drive of the cleaning head 290 on the surface to be cleaned. In one embodiment, the further support means 292 is steerable. This is indicated in Figure 17 by the reference numeral 294. The steerability, which is particularly controllable, is achieved for example via one or more steering rollers, with a corresponding steering drive 296 is provided in particular with an electric motor.

The steering drive 296 allows the self-steering cleaning head 290 to be steered.

For example, the further support device 292 with the steering drive 296 can also be realized on the cleaning head 240 with wiping roller unit 246 and sweeping roller unit 250 or on the cleaning head 270 with wiping roller unit 274 and cleaning roller unit 272.

In principle, it can also be realized on the cleaning head 206.

Reference surface cleaning machine

device body

cleaning head

Area to be cleaned

Cleaning roller unit

longitudinal axis

Retaining bar means

retaining bar

Handle

drive motor

casing

holder

Tank device for cleaning fluid tank receiver

valve means

filtering device

fluid line

trimming

battery means

motor axis

swivel axis

double arrow

inner sleeve

outer sleeve

pivot bearing

axis of rotation

Cleaning roller holder

holding area

receiving chamber

Dirty fluid tank means transmission device

wave

First part

Second part

intermediate area

shell

First front page

Second front side

ground

Aufnahmekammerwandung

accommodation space

page

Removal / insertion

wall region

step

fixing device

hold

flap

swivel axis

pivot bearing

direction

First chamber

Second Chamber

recess

Longitudinal axis of extension

First outer end

Second outer end

bridge

flap

a swivel bearing

b swivel bearing

bottom

top 132 recess

134 undercut surface

136 counter element

138 blocking element

140 level

142 Wiper guide

144 entrance mouth

146 First part

148 Second Part

150 edge element

151 Rounding off, chamfering

152 wall

154 cover

156 area

158 direction of rotation

160 sweeping element

162 management area

202 cleaning machine

204 Stationary Station

206 cleaning head

208 cleaning roller unit

210 drive motor

212 battery device

214 Dirtfiuidtankeinrichtung

216 Tank device for cleaning fluid

218 connection

220 bodies

222 First cleaning roller

224 First orientation

226 Second cleaning roller

228 Second orientation

230 chisel tip

232a part roller 232b part roller

234 wave

240 cleaning head

242 bodies

244 axis of rotation

246 Wiper roller unit

248 rotation axis

250 sweeping roller unit

252 cleaning roller unit

254 dirt fluid tank device

256 containers

258 scrapers

260 Tank device for cleaning fluid

262 sweeping edge

270 cleaning head

272 cleaning roller unit

274 Wiper roller unit

276 Sweeping roller unit

278 Dirty fluid tank device

280 recording

282 scrapers

290 cleaning head

292 Further support device

294 "steerability"

296 steering drive

Claims

claims

A surface cleaning machine comprising a cleaning head (14;

206; 240) with a driven cleaning roller unit (18; 208; 252) having a rotation axis (58), wherein in a cleaning operation, the surface cleaning machine is supported only on the cleaning roller unit (18; 208; 252) on a surface to be cleaned (16) via the cleaning roller unit (272) and another support means (292) on the surface to be cleaned (16), a drive motor (28; 210) for the cleaning roller unit (18; 208; 272), and a dirty fluid tank means (66; 214; 254, 278) removably mounted on the cleaning head (14; 206; 240).

A surface cleaning machine according to claim 1, characterized in that the cleaning roller unit (18; 208; 252) is or comprises a wiping roller unit (246).

A surface cleaning machine according to claim 1 or 2, characterized in that the cleaning roller unit (252) comprises a wiping roller unit (246; 274) and a sweeping roller unit (250; 276).

4. surface cleaning machine according to claim 3, characterized in that the surface cleaning machine in the cleaning operation on the wiping roller unit (246; 274) and the sweeping roller unit (250; 276) on the surface to be cleaned (16) is supported.

5. surface cleaning machine according to claim 3 or 4, characterized in that the Schmutzfluidtankeinrichtung (278) comprises a common receptacle (256) for debris from the sweeping roller unit (276) and dirt fluid from the wiper roller unit (274).

Surface cleaning machine according to claim 3 or 4, characterized in that the Schmutzfluidtankeinrichtung (254) comprises separate receptacles for debris from the sweeping roller unit (250) and for dirt fluid from the wiper roller unit (246).

A surface cleaning machine according to claim 5 or 6, characterized in that one or more containers (256) of dirty fluid dirty fluid tank means (254) are releasably positioned on the cleaning head (240) between the sweeping roller unit (250) and the wiping roller unit (246).

Surface cleaning machine according to one of the preceding claims, characterized in that the further support means (292) is a roller unit with one or more rollers and in particular with one or more cleaning rollers, and / or that the support means is or comprises at least one roller, and / or that the support means is or comprises at least one sliding element.

Surface cleaning machine according to one of the preceding claims, characterized in that the cleaning roller unit (18; 208) comprises one or more cleaning rollers (222, 226) or partial cleaning rollers which are driven by the same drive motor (210), wherein different cleaning rollers ( 222, 226) or sub-cleaning rollers have similarly oriented axes of rotation or have differently oriented axes of rotation (224, 228).

Surface cleaning machine according to one of the preceding claims, characterized in that a longitudinal extension axis (116) of the dirty fluid tank device (66) is oriented parallel to the rotation axis (58) of the cleaning roller unit (18).

11. surface cleaning machine according to one of the preceding claims, characterized in that a motor axis (46) of the drive motor (28) transversely and in particular perpendicular to a longitudinal extension axis (116) of the dirty fluid tank means (66) is oriented.

12. Surface cleaning machine according to one of the preceding claims, characterized in that the Schmutzfluidtankeinrichtung (66) between the cleaning roller unit (18) and the drive motor (28) is arranged.

13. surface cleaning machine according to claim 12, characterized by a transmission device (68) for transmitting torque, which is arranged between the drive motor (28) and the cleaning roller unit (18) that the Schmutzfluidtankeinrichtung (66) has a top (130) and a bottom ( 128), wherein the underside (128) faces a cleaning roller holder (60) of the cleaning roller unit (18) and faces away from the upper side (130) of the underside (128), and that the transmission device (68) on the underside (128) or the top (130) of the dirty fluid tank means (66) is passed.

14. surface cleaning machine according to claim 13, characterized in that the Schmutzfluidtankeinrichtung (66) has a recess (114), in which at the cleaning head (14) fixed Schmutzfluidtankeinrichtung (66) at least a portion of the

Gear device (68) is positioned.

15. surface cleaning machine according to one of the preceding claims, characterized by a device body (12) on which the cleaning head (14) is arranged, wherein on the device body (12) at least one of the following means is positioned: a tank means (34) for cleaning liquid; a valve means (38) for supplying cleaning fluid to the cleaning head (14); a battery means (44) for the drive motor (28); a holding rod device (22) for holding and / or guiding the

Surface cleaning machine; a filter device (39) for

Cleaning liquid; at least partially the drive motor (28).

16. surface cleaning machine according to claim 15, characterized in that the drive motor (28) at least partially between the device body (12) and the cleaning head (14) is arranged, wherein it is arranged in particular partially in the device body (12).

17. Surface cleaning machine according to claim 15 or 16, characterized

characterized in that the cleaning head (14) about a pivot axis (48) relative to the drive motor (28) and / or the device body (12) is pivotable, wherein the pivot axis (48) in particular parallel or coaxial with a motor axis (46) of the drive motor (28) is oriented.

18. Surface cleaning machine according to one of the preceding claims, characterized in that a cleaning roller holder (60) has a receiving chamber (64) with a receiving space (88) for the Schmutzfluidtankeinrichtung (66).

19. surface cleaning machine according to claim 18, characterized in that the receiving chamber (64) is associated with a fixing device (98) through which the Schmutzfluidtankeinrichtung (66) on the receiving chamber (64) is fixable, wherein the fixing device (98) for the Removability of the Schmutzfluidtankeinrichtung (66) of the cleaning head (14) is detachably formed and in particular the fixing device (98) is formed so that the Schmutzfluidtankeinrichtung (66) on the receiving chamber (64) by positive engagement in a holding position (100) is held.

20. Surface cleaning machine according to claim 19, characterized in that the fixing device (98) is or comprises at least one pivotable flap (102).

21. surface cleaning machine according to claim 20, characterized in that a pivot axis (104) of the at least one flap (102) at least approximately parallel to a rotation axis (58) of the cleaning roller unit (18) is aligned.

22. surface cleaning machine according to claim 20 or 21, characterized

characterized in that the at least one flap (102) acts on an upper side (130) of the dirty fluid tank device (66) which faces away from a lower side (128), the underside (128) of the

Dirt fluid tank device (66) faces a bottom (84) of the receiving chamber (64) when the dirty fluid tank device (66) is fixed to the cleaning head (14).

23. surface cleaning machine according to one of claims 20 to 22, characterized in that the at least one flap (102) is designed as hold-down, which defines the Schmutzfluidtankeinrichtung (66) defined in relation to the cleaning roller unit (18) and / or in the Positioned receiving space (88) and in particular the Schmutzfluidtankeinrichtung (66) in a holding position (100) against a bottom (84) of the receiving chamber (64) suppressed.

24. Surface cleaning machine according to claim 22 or 23, characterized

characterized in that the at least one flap (102) is spring-loaded and / or is designed so that the dirt fluid tank device (66) is held in the receiving space (88) with a bias.

Surface cleaning machine according to one of claims 22 to 24, characterized in that on the upper side (130) of the Schmutzfluidtankeinrichtung (66) at least one recess (132) is arranged and the at least one flap (102) at least one counter element (136) for immersion in the at least one recess (132).

Surface cleaning machine according to claim 25, characterized in that the at least one recess (132) has at least one undercut (134) and the at least one counter element (136) has a locking element (138) fitted to the at least one undercut (134) which, with the at least one flap (102) closed, blocks movement of the dirty fluid tank means (66) in a direction (92) away from a bottom (84) of the receiving chamber (64).

27. surface cleaning machine according to one of claims 19 to 26, characterized in that the receiving chamber (64) and the Schmutzfluidtankeinrichtung (66) are adapted to each other adapted that in a holding position (100) of the Schmutzfluidtankeinrichtung (66) on the receiving chamber ( 64) a mobility of the dirty fluid tank means (66) is locked transversely to a vertical of a bottom (84) of the receiving chamber (64).

28. surface cleaning machine according to one of the preceding claims, characterized in that the Schmutzfluidtankeinrichtung (66) has one or more cover flaps (124).

29. surface cleaning machine according to one of the preceding claims, characterized in that the Schmutzfluidtankeinrichtung (66) is formed as a unit.

30. surface cleaning machine according to one of the preceding claims, characterized in that the cleaning roller unit (18) is formed in two parts with a first part (72) and a second part (74), wherein the first part (72) of the cleaning roller unit (18) a first chamber (110) of the dirty fluid tank device (66) and the second part (74) of the cleaning roller unit (18) is associated with a second chamber (112) of the dirty fluid tank device (66), and in particular the drive motor (28) is centered on a central region between the first part (72) and the second part (74) acts.

31. Surface cleaning machine according to one of the preceding claims, characterized by a dirt fluid wiping guide (142; 258) acting on the cleaning roller unit (18; 252) and located at an inlet mouth (144) of the dirty fluid tank device (66; 254). is arranged.

A surface cleaning machine according to claim 31, characterized in that the wiping guide (142; 258) is arranged and arranged to remove dirt fluid entrained by the cleaning roller unit (18; 252) by wiping from the cleaning roller unit (18 252) is released and directed to the inlet mouth (144) of the dirty fluid tank means (66; 254).

33. Surface cleaning machine according to claim 31 or 32, characterized

characterized in that the scraper guide (142; 258) is configured to allow dirt fluid to pass through the scraper guide (142; 258) at the inlet mouth (144) of the dirty fluid tank means (66; 254) into the dirty fluid tank means (66; 254). is directed.

34. Surface cleaning machine according to one of claims 31 to 33,

characterized in that relative to a direction of rotation (158) of the cleaning roller unit (18; 252), the stripping guide (142; 258) is arranged downstream of the inlet mouth (144).

35. Surface cleaning machine according to one of claims 31 to 34,

characterized in that the wiping guide (142; 258) projects into a trimming (42) of the cleaning roller unit (18; 252).

A surface cleaning machine according to claim 35, characterized in that the scraper guide (142; 258) is rounded or chamfered at an edge which projects into the trimming (42) and which faces the entrance mouth (144).

37. Surface cleaning machine according to claim 35 or 36, characterized

characterized in that the scraper guide (142; 258) projects with a depth (T) of at least 5% of a thickness (D) of the trimming (42) into the trimming (42) with respect to a wet trimming (42).

38. Surface cleaning machine according to one of claims 31 to 37, characterized in that the scraper guide (142; 258) is arranged on the dirty fluid tank device (66; 254) and connected to the dirty fluid tank device (66; 254) by the cleaning head (14 240) is removable.

39. Surface cleaning machine according to one of claims 31 to 38,

characterized in that the stripping guide (142; 258) is formed by one or more edge elements (150), wherein in particular an edge element (150) at least partially forms a wall of the inlet mouth (144).

40. Surface cleaning machine according to one of the preceding claims, characterized in that on the cleaning head (14) at least one sweeping element (160) is arranged, through which the cleaning roller unit (18) coarse dirt for entrainment by the cleaning roller unit (18) can be fed.

41. Surface cleaning machine according to claim 39, characterized in that an inlet mouth (144) of the Schmutzfiuidtankeinrichtung (66) between a scraper guide (142) and the at least one sweeping element (160) is positioned.

42. surface cleaning machine according to one of the preceding claims, characterized by a battery means (44) and in particular rechargeable battery means (44) for supplying the drive motor (28; 210) with electrical energy.

43. surface cleaning machine according to claim 42, characterized in that the drive motor (28; 210) between the battery device (44) and the cleaning head (14; 206) is arranged.

44. Surface cleaning machine according to one of the preceding claims, characterized by a tank means (34; 260) for cleaning fluid.

45. Surface cleaning machine according to claim 44, characterized in that the tank means (34; 260) for cleaning liquid with respect to the direction of gravity above the cleaning roller unit (18; 252) is positioned when the surface cleaning machine in a proper cleaning operation when on the zu cleaning surface (16) attached cleaning roller unit (18; 252) is operated.

46. Surface cleaning machine according to one of the preceding claims, characterized in that an inlet mouth (144) of the dirty fluid tank means (66) has a longitudinal extension direction which is oriented parallel to a rotation axis (58) of the cleaning roller unit (18).

47. Surface cleaning machine according to one of the preceding claims, characterized by a design as a hand-operated or hand-guided surface cleaning machine.

48. surface cleaning machine according to one of claims 1 to 46, characterized in that the cleaning head (206; 240; 270; 290) is designed to be self-propelled and self-steering.

49. Surface cleaning machine according to claim 48, characterized by the cleaning head (206; 240; 270; 290) and a stationary station (204), opposite which the cleaning head (206; 240; 270; 290) is movable, wherein the fixed station (204) is provided for at least one of the following:

Storing the cleaning head (206; 240; 270; 290) in a non-cleaning operation of the cleaning head (206; 240; 270;

290);

Charging a battery device (212) disposed on the cleaning head (206; 240; 270; 290); defined discharge or partial discharge of the battery means (212) disposed on the cleaning head (206; 240; 270; 290);

Cleaning the cleaning roller unit (208; 252) of the cleaning head (206; 240; 270; 290);

Emptying the dirty fluid tank means (214; 254; 278);

Filling a tank means (216; 260) for cleaning liquid with cleaning liquid.

50. Surface cleaning machine according to claim 48 or 49, characterized by a driving drive of the cleaning head (206; 240; 270; 290) via the cleaning roller unit (208; 252) and / or the further support means (292).

51. Surface cleaning machine according to one of claims 48 to 50, characterized by a steerability of the cleaning head (206; 240; 270; 290) via the cleaning roller unit (208; 252) and / or by the further support means (292).

52. Surface cleaning machine according to one of the preceding claims, characterized in that a rotational drive of one or more cleaning rollers (222, 226) of the cleaning roller unit (206) via the drive motor (210) takes place in a clockwise and counterclockwise direction.

53. surface cleaning machine according to one of the preceding claims, characterized in that the cleaning roller unit (208) at least a first cleaning roller (222) having a first orientation (224) of the axis of rotation and a second cleaning roller (226) with a second orientation (228) the rotation axis, wherein the first orientation (224) and the second orientation (226) at an angle different from 0 ° and 180 ° to each other.

54. Surface cleaning machine according to claim 53, characterized by a wedge-shaped arrangement of the first cleaning roller (222) and the second cleaning roller (226), wherein in particular a wedge tip (230) in the region of a front end of the cleaning head (204).

55. Surface cleaning machine according to claim 53 or 54, characterized

in that a rotation of the first cleaning roller (222) and a rotation of the second cleaning roller (226) can be driven independently of one another, wherein a change in direction of the cleaning head (226) can be changed by appropriate actuation of the first cleaning roller (222) and the second cleaning roller (226). 204) is enabled.