EP2773254B1 - Handdriven floor cleaning machine - Google Patents

Description

The invention relates to a hand-held floor cleaning machine, comprising a chassis with a front end and rear end relative to a straightforward forward direction, a wheel device which is arranged on the chassis in the region of the rear end, and a cleaning head, which on the chassis pivotally in the area the front end is arranged, wherein at least one brush is arranged on the cleaning head and a drive means for the driven rotation of the at least one brush is arranged, wherein in the straight-ahead driving direction, a rotation axis of the at least one brush is parallel to a wheel axle of the wheel device.

From the US2229229 is a hand-held floor cleaning machine known ( Fig.1 ), comprising a chassis (A) with respect to a forward straight forward direction (J) and rear end (A), a wheel device (B), which on the chassis (A) in the region of the rear end (A) is, and a cleaning head (J, K), which on the chassis (A) pivotally disposed in the region of the front end (J), wherein at the cleaning head (J, K) at least one brush (K) is arranged and a drive means (T, S, S ', J', K ') is arranged for the driven rotation of the at least one brush (K), wherein in the forward direction of rotation a rotation axis (K') of the at least one brush (K) parallel to a wheel axis of the wheel device is ( Fig.1 ).

From the WO 98/43527 A1 or EP 0 926 976 B1 a tillage machine with a drivable tillage device with non-circular processing surface is known, which comprises at least one processing body which is pivotable about a vertical axis, with respect to the tillage machine. The soil treatment device has a non-circular processing surface whose width extension is aligned transversely to the direction of travel. Depending on the respective direction of travel, the tilling device with its non-circular working surface is pivotable about a vertical axis of rotation relative to the machine body in such a way that the British extension of the machining body remains aligned transversely to the current direction of travel even when cornering.

From the EP 1 239 762 B1 is a mobile carriage with at least one pivotable impeller and / or a pivotable actuating, working or cleaning unit and at least one sensor device known. The sensor device is arranged such that it is at least relatively mitverschwenkbar with the steerable impeller and / or the pivotable actuating, working or cleaning unit in the same pivoting direction.

From the WO 2004/073477 A1 is a back-operated scrubber known which includes a front portion with a first pair of wheels and a scrub head. There is a rear area provided with a second pair of wheels. The front portion and the rear portion are pivotally connected to each other via a corresponding mechanism with a vertical pivot axis. There is a tank for a cleaning liquid. Furthermore, a dirty water tank is provided. A steering system allows an operator to effect relative rotational movement between the front and rear areas. An engine system drives the first pair of wheels or the second pair of wheels.

From the US 4,010,507 a floor cleaning machine is known, which has a seat and a steering device, wherein a steering is carried out by applying pressure to a handle or on a foot pedal of a yoke assembly.

From the DE 43 37 633 C2 For example, there is known a variable working width cultivating machine comprising a machine body and an operator manipulating it, wherein on the underside of the machine body there is provided a ground processing device having a non-circular total machining surface and comprising a machining body. The operating device is positionally variable with respect to the machine body in a substantially horizontal plane.

From the US 4,499,624 is a portable polishing device known.

From the US 4,005,502 is an electrically driven hand-held roughing machine known.

From the US 2,842,788 is a carpet machine known.

From the EP 1 344 484 A2 is a tillage machine known.

From the US 6,041,472 For example, there is known a portable floor cleaning machine having a base and an upright handle pivotally mounted on a rear portion of the base.

The invention has for its object to provide a hand-held floor cleaning machine of the type mentioned, which allows a low-fatigue operation in a compact design.

This object is achieved according to the invention in the above-mentioned hand-held floor cleaning machine in that the cleaning head is pivotable to the left and / or to the right by more than 90 ° with respect to the straight-ahead driving direction.

In such an embodiment, it is possible to effect a driving movement of the floor cleaning machine via a driven rotation of the at least one brush or at least to support. This support is also available when cornering and possibly also when reversing. As a result, the force required to guide the floor cleaning machine for a user is reduced.

The aforementioned object is further achieved according to the invention in that the cleaning head can be pivoted to the left and / or to the right by more than 90 ° in relation to the straight-ahead driving direction. A correspondingly high swivel range makes it possible to clean hard-to-reach corner areas. Furthermore, based on the forward drive position, the cleaning head can be brought into a (particularly driven) position suitable for reversing. The floor cleaning machine then has a high maneuverability.

It is particularly advantageous if the cleaning head is pivotable to the left and / or to the right by at least 180 °. As a result, a high maneuverability of the floor cleaning machine can be achieved so that corresponding floor surfaces can be cleaned with minimal effort. An optimized cleaning result is achieved even in difficult to access areas such as near-wall areas. By example, 180 ° position relative to the straight-ahead driving direction is a Ge Radeaus reverse direction realized. It can thereby achieve, for example, a powered reverse drive. In particular, when the cleaning head in relation to the straight-ahead driving direction in each case to the left and to the right in each case at least 180 ° pivot, results in a high maneuverability of the floor cleaning machine, which can be achieved on each of the cleaning head driven over the at least one brush driving movement to at least assist an operator in pushing the floor cleaning machine as a whole.

In particular, the cleaning head is pivotable by more than 180 ° (to the left and to the right). This results in an optimized mobility of the floor cleaning machine.

In particular, a pivot axis of the pivoting of the cleaning head is oriented transversely to the wheel axle of the wheel device. It can thereby specify a direction of travel of the floor cleaning machine via a corresponding pivoting position of the cleaning head. In particular, cornering can be predetermined by corresponding pivoting positions of the cleaning head.

It is advantageous if the drive device has at least one electric motor which is supplied with electrical power via a battery device which is arranged on the chassis. The at least one electric motor drives the rotational movement of the brush (brush roller). This performs a cleaning process. This rotational movement can also be used to drive a travel movement of the floor cleaning machine as a whole. By means of the battery device, it is also possible to supply other components of the ground device, such as a suction motor of a turbine device, and a pump device with electrical energy.

It is advantageous if an impingement device for cleaning liquid is arranged on the cleaning head, which fluidly effective connection with a arranged on the chassis tank. As a result, cleaning liquid can be applied to the cleaning head on a substrate to be cleaned.

Advantageously, the loading device on a pot which is rotatably mounted on the cleaning head and in which at least one line opens, which is in fluidly effective connection with the tank for cleaning fluid. As a result, the design effort for guiding cleaning fluid from the tank for cleaning fluid to the pivotable cleaning head can be reduced. There is no need to provide a fluid-tight line between the cleaning head and the corresponding tank, which participates in the pivoting of the cleaning head. The pot provides a large "loading area" for cleaning fluid from the corresponding tank ready. The sealing effort is thereby reduced. Since the pot is rotatably connected to the cleaning head, the sealing effort is reduced here as well.

In particular, a position of an opening of the at least one line in the pot is dependent on a pivot position of the cleaning head relative to the chassis. Depending on the swivel position of the cleaning head, cleaning liquid is injected into the pot via the line at different points of the pot.

It is advantageous if the pot is seated by a pivot bearing for the pivoting of the cleaning head on the chassis. This results in a simple structure. The cable routes can be minimized.

In particular, the pot has an annular region which surrounds the pivot bearing. About this ring area a receiving space for cleaning fluid is provided. This receiving space is a kind of buffer space for cleaning fluid.

Conveniently, a suction device is arranged on the cleaning head, which is in fluid-effective connection with a tank for dirty water, which is arranged on the chassis. It can thereby suck and collect dirty water on the cleaning head.

In one embodiment, the suction device comprises at least one suction bar, which is arranged on the cleaning head. The suction bar forms a scraper for cleaning liquid, wherein stripped cleaning liquid is sucked off.

It is favorable if a lifting device is provided for the at least one suction bar, which is arranged on the cleaning head. In a non-operating state, the suction bar can be lifted off the ground by means of the lifting device so that it is no longer in contact with the ground. This prevents wear of the suction bar or damage to the suction bar in non-operational operation of the floor cleaning machine or the corresponding risk is at least reduced.

It is advantageous if the lifting device comprises a foot pedal, so that an operator can effect a lifting or lifting back of the at least one suction bar in a simple manner.

It is advantageous if the lifting device is associated with a sensor or switch, wherein a sensor signal or a switch signal causes a start and / or a stop of a suction motor. As a result, an extraction can then be switched off automatically or switched on when the suction bar is brought into a non-operative or operative position.

In particular, while the suction motor is arranged on the chassis, resulting in a compact design.

Conveniently, a roller device is arranged on the cleaning head, which has at least a first position and a second position, wherein in the first position, the floor cleaning machine is supported on the roller device and the at least one brush is not in contact with a substrate on which the floor cleaning machine stands up , and in the second position, the at least one brush acts on the ground. In the first position, which is a non-operative position for the floor cleaning machine, then the brush wear can be reduced because they do not act on the ground. In particular, the first position and the second position can be achieved via a lifting device for a suction bar.

In one embodiment, a handlebar means is provided which is hinged to the cleaning head which is supported on the chassis and which extends in a direction away from the chassis up to the rear end. About the handlebar device, a standing behind the floor cleaning machine and this trailing operator directly cause a pivoting of the cleaning head and thus a change in direction during a driving movement of the floor cleaning machine. There are then no intermediate elements for the steering control of the floor cleaning machine necessary and this can be compact. Furthermore, then the handlebar device can be used directly for pushing or pulling the floor cleaning machine. The handlebar device also forms a push rod device or drawbar device.

The handlebar device can be basically formed with minimized dimensions by a one-piece or multi-part handlebar is used. This takes up a small footprint and appropriate component of the floor cleaning machine can be arranged around the handlebar assembly and under this. This in turn results in a compact design, this structure is optimized. For example can arrange a relatively heavy battery device directly above the wheel.

The handlebar device can be arranged in a structurally simple manner so that it is forcibly guided and can only perform a pivoting movement for a pivoting movement of the cleaning head. A pivoting movement of the handlebar device can then be implemented via direct coupling to the cleaning head in its pivoting. The design effort is minimized.

In particular, the handlebar device is at least partially oriented at an acute angle to a flat surface when the floor cleaning machine stands up with the wheel and the cleaning head on the flat surface. The handlebar device is then guided away steeply upwards. This makes it possible to achieve a compact design.

In particular, the acute angle is in the range between 30 ° and 60 ° and in particular in the range between 40 ° and 50 ° and in particular at least approximately 45 °. This results in an optimized compact design, wherein the handlebar device can be used in an advantageous manner as a push rod device or drawbar device.

In principle, the handlebar device can be designed in several parts, for example with a first rod element and a second rod element. It is then possible in principle that the first rod element and the second rod element are oriented at different acute angles to the ground (and thus to the chassis). In a preferred solution, the handlebar means is coaxial in the cleaning operation (the first rod member and the second rod member are at zero angle to each other).

In particular, on the handlebar device at or in the vicinity of an end which faces away from a pivot point on the cleaning head, a Steering wheel arranged. An operator can then effect a steering movement in an ergonomically advantageous manner and, in particular, an optimized gripping surface is then also provided in order to be able to carry out a pushing movement or pulling movement of the entire floor cleaning machine. In the simplest case, the Steuerradeinrichtung is designed as a cross bar.

It is particularly advantageous if the control wheel device protrudes beyond the rear end of the chassis in a projection onto a substrate on which the floor cleaning machine rests. An operator who stands or runs behind the floor cleaning machine can then operate (in particular steer and push) the floor cleaning machine via the control wheel device. In particular, the control wheel device protrudes so far that an operator does not hit his feet on the floor cleaning machine in such a machining operation.

In one embodiment, it is provided that the handlebar device is determinable variable in length and / or is pivotable relative to the chassis, wherein the handlebar means is pivotally as a whole and / or parts of the handlebar means are pivotable relative to each other. It can then be optimized adapted to the specific ergonomic needs of an operator, the handlebar assembly to allow fatigue-free working with the floor cleaning machine. Furthermore, the handlebar device can then also be positioned so that the outer dimensions of the hand-held floor cleaning machine for transport or storage are minimized. It is particularly advantageous if the handlebar device is both detectable variable in length and also lockable pivotally and in particular parts of the handlebar means are relatively pivotable.

It is advantageous if a pivot axis of a pivot bearing of the pivoting of the handlebar device at least approximately parallel to a rotational axis of a brush roller of the cleaning head and / or a wheel axle the wheel device is oriented at a position of the handlebar device for the straight-ahead driving direction. This makes it easy to achieve a height adjustment. Furthermore, it can thereby be achieved, for example, that the handlebar device can be folded (with, for example, two parts pivotable relative to one another). In turn, this allows the height of a rear end of the handlebar means relative to the chassis set and in particular also set so that the outer dimensions are minimized for transport and storage.

Furthermore, it is favorable if a pivot bearing is positioned on the handlebar device above (relative to the direction of gravity when the floor cleaning machine stands on a level surface) of a tank, past which the handlebar device is passed and / or outside of a housing cover, which is arranged on the chassis is, is positioned. This makes it possible to achieve a pivoting of the handlebar device with minimal effort. The lining of the floor cleaning machine, through which the handlebar device pierces, can be formed with minimal design effort, since no pivoting movement of the part of the handlebar device, which pierces through the panel or is passed to the tank, must be provided. Furthermore, the determination of the pivotability can be achieved in a simple manner. An operator can access the pivot bearing directly from the outside to effect a pivoting release or a pivoting determination.

In one embodiment, the handlebar means comprises a sleeve on which a Steuerradeinrichtung is arranged, wherein a rod member of the handlebar means is immersed in the sleeve, and wherein a longitudinal position of the sleeve on the rod member is detectably variable. As a result, a variable-length handlebar device can be realized in a simple manner. The guidance of electrical cables and the like within the handlebar device is minimally affected by the Längenveränderlichkeit. About the sleeve is the Steuerradeinrichtung as it were plugged onto the rod element and held there. At the same time, a telescopic guide with a length variability of the handlebar device can be formed in a simple manner.

It is particularly advantageous if the handlebar device forms a push rod device for pushing the floor cleaning machine and / or forms a pull rod device for pulling the floor cleaning machine. This results in optimized work opportunities with a compact design of the floor cleaning machine.

Conveniently, the handlebar device is articulated via a hinge device on the cleaning head and in particular the hinge device comprises a gimbal joint. The handlebar device has a pivot axis which is oriented in a different direction than the pivot axis of the cleaning head. The two pivot axes intersect in particular. By the hinge means can be a pivotal movement of the handlebar means and implement a pivoting movement of the cleaning head.

In a structurally favorable embodiment, the hinge device is arranged on a pivot bearing for the pivoting of the cleaning head on the chassis. This results in a compact design. It can be achieved in a simple manner that intersect a pivot axis of the steering device on the pivot axis of the pivot bearing, so that there is no transverse offset.

It is particularly advantageous if at least one support element is rotatably mounted on the chassis, which has a recess through which the handlebar device is immersed and in which the handlebar device is rotatable. The support element provides for a support and thus support the handlebar device relative to the chassis. Furthermore, by such a support element of the handlebar device Forced conditions imposed so that only a rotation about a pivot axis is possible.

In particular, the handlebar device has a one-piece or multi-part handlebar, which is articulated on the cleaning head. This results in a simple and compact construction, wherein the space required for the handlebar device is minimized.

In one embodiment, the chassis on a holding element, on which the cleaning head is pivotally mounted, and in particular the holding element is designed as a holding plate or comprises a holding plate. The retaining element is the basic base of the chassis to which the corresponding components are fixed directly or indirectly.

It is advantageous if a first tank and a second tank are arranged on the holding element, wherein the first tank is seated on a first side of the holding element and the second tank is seated on a second side opposite the first side, and wherein the second side is a substrate facing, on which the floor cleaning machine stands up. This results in a compact design of the floor cleaning machine under optimal space utilization. Due to the compact design, wall-level floor surfaces can be optimally cleaned.

The handlebar device is supported on the first side and rises in particular on the first page.

Conveniently, the tank is shaped so that a free space is formed through which the handlebar means is guided. As a result, the handlebar device can be guided to a certain extent through the first tank. This in turn results in an optimized use of space and the floor cleaning machine can be compact.

Advantageously, the wheel device is arranged on the second side. It can then also use the "underbody" of the chassis.

In particular, the second tank is adapted in shape to the wheel device. This results in an optimized use of space.

The second tank is advantageously shaped so that a free space for the pivoting of the cleaning head is formed. This allows it to pivot in a wide pivoting range, which is in particular 360 ° or more. This in turn results in an optimized operability with optimized cleaning result even in otherwise hard to reach corners. Further, the cleaning head can be rotated by 180 ° relative to a straightforward forward direction to realize a reverse direction.

For example, the first tank is a waste water tank and the second tank is a tank for cleaning fluid.

It is advantageous if a holding device for a battery device is arranged on the chassis and in particular on the holding element of the chassis, wherein in particular the holding device is arranged above the wheel device. The battery device usually has a large mass. It can then be arranged in an optimized manner and, in particular, forces can be optimally supported on account of the relatively high mass of the battery device.

It is advantageous if the holding device protrudes upwards from a first side of the holding element, wherein the first side faces away from a second side which assigns to a substrate on which the floor cleaning machine rests. The holding device can thereby be arranged below the handlebar device. This makes it possible to use the available space optimally and results in a compact design of the floor cleaning machine.

In particular, the holding device has a wall which is oriented transversely to the first side of the holding element. This wall effectively separates the holding device with the battery device from a "water area" of the floor cleaning machine. In this water area, for example, a waste water tank and a turbine device is arranged.

It is advantageous if the holding device comprises a holding region for a charger for the battery device, wherein in particular the charger is arranged closer to the rear end relative to a direction between the front end and the rear end of the chassis than the battery device. As a result, the battery device can be arranged optimally over the wheel device and supported.

It is also advantageous if a turbine device for sucking dirty water is arranged on the chassis and in particular on a holding element of the chassis, which is in fluidly effective connection with a dirty water tank and the cleaning head. It can thereby optimally use an area below the handlebar device to position other components of the floor cleaning machine.

For the same reason, it is favorable if a pump device, which is in fluid-effective connection with a cleaning fluid tank and the cleaning head, is arranged on the chassis and in particular on a holding element of the chassis. This makes it easy to position the pump device.

In particular, the handlebar means has a maximum length between a pivot point to the cleaning head and a rear end, which is at least 1.3 times as large as a length of the chassis between the front end and the rear end. This allows an operator who runs behind the floor cleaning machine ("trailer") via the handlebar device cause a steering movement and possibly push or pull the floor cleaning machine.

Figur 1

eine perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Bodenreinigungsmaschine;

Figur 2

eine Seitenansicht der Bodenreinigungsmaschine gemäß Figur 1;

Figur 3

die gleiche Ansicht wie Figur 2, wobei Teile der Bodenreinigungsmaschine entfernt wurden;

Figur 4

die gleiche Ansicht wie Figur 2, wobei weitere Teile entfernt wurden;

Figur 5

eine Schnittansicht in der Ebene 5-5 gemäß Figur 1;

Figur 6

eine Schnittansicht in der Ebene 6-6 gemäß Figur 1;

Figur 7

eine Schnittansicht längs der Linie 7-7 gemäß Figur 6;

Figur 8

die gleiche Ansicht wie Figur 7, wobei Teile entfernt wurden;

Figur 9

eine Schnittansicht längs der Linie 9-9 gemäß Figur 8;

Figur 10

eine Schnittansicht längs der Linie 10-10 gemäß Figur 8; und

Figur 11

eine Teildarstellung einer Variante einer erfindungsgemäßen handgeführten Bodenreinigungsmaschine mit längenveränderlicher und schwenkbarer Lenkstangeneinrichtung.

The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention. Show it:

FIG. 1

a perspective view of an embodiment of a floor cleaning machine according to the invention;

FIG. 2

a side view of the floor cleaning machine according to FIG. 1 ;

FIG. 3

the same view as FIG. 2 with parts of the floor cleaning machine removed;

FIG. 4

the same view as FIG. 2 with other parts removed;

FIG. 5

a sectional view in the plane 5-5 according to FIG. 1 ;

FIG. 6

a sectional view in the plane 6-6 according to FIG. 1 ;

FIG. 7

a sectional view taken along the line 7-7 according to FIG. 6 ;

FIG. 8

the same view as FIG. 7 with parts removed;

FIG. 9

a sectional view taken along the line 9-9 according to FIG. 8 ;

FIG. 10

a sectional view taken along the line 10-10 according to FIG. 8 ; and

FIG. 11

a partial view of a variant of a hand-held floor cleaning machine according to the invention with variable-length and pivotable handlebar device.

An embodiment of a floor cleaning machine according to the invention, which in the FIGS. 1 to 10 represented and designated therein by 10, comprises a chassis 12. The chassis 12 has a holding element 14, which is designed in particular as a holding plate. The holding element 14 has a first side 16 and a second side 18 opposite the first side. If the floor cleaning machine 10 rests on a substrate 20, the second side 18 faces the substrate 20 and the first side 16 faces away from the substrate 20.

The undercarriage 12 has a front end 22 and a rear end 24 facing away from the front end 22. In a straight-ahead driving direction 26 of the floor cleaning machine (FIG. FIG. 1 ), the front end 22 is directed forward and the rear end 24 is directed backwards. The floor cleaning machine 10 is hand-guided. An operator stands behind the rear end 24 with respect to the straight forward driving direction 26 and guides (pushes or pulls) the floor cleaning machine 10, as will be explained in more detail below.

On the chassis 12, a wheel device 28 is arranged in the region of the rear end 24. The wheel device 28 is a rear wheel device which is positioned on the holding element 14 and in particular the second side 18 of the holding element 14. The wheel device 28 has, with respect to the straight-ahead driving direction 26, a left rear wheel 30a and a right rear wheel 30b (see. FIG. 7 ) on. The wheel device 28 has a wheel axle 32 (rotation axis) about which the rear wheels 30a, 30b are rotatable. The wheel device 28 is unguided, that is, the rear wheels 30 a, 30 b have only the mobility of the rotatability about the wheel axle 32. About the wheel device 28, the floor cleaning machine 10 is placed in the region of the rear end 24 on the ground 20.

On the holding element 14, a cleaning head 34 is pivotally mounted in the region of the front end 22. For this purpose, a pivot bearing 36 is provided. This pivot bearing 36 defines a pivot axis 38 (see. FIG. 2 ) for the pivoting of the cleaning head 34 on the chassis 12. This pivot axis 38 is oriented transversely and in particular perpendicular to the wheel axle 32.

In one embodiment, the pivot bearing 36 includes a cylindrical pin 40 disposed in an upper portion 42 of the cleaning head 34. The pivot bearing 36 further comprises a ring member 44 having a cylindrical recess 46 which is arranged on the holding element 14. The pin 40 is penetrated through the recess 46.

The floor cleaning machine 10 comprises a handlebar device 48. The handlebar device 48 is at one end 50 (see in particular FIG. 4 ) hinged to the cleaning head 34 via a hinge device 52. The hinge device 52 comprises a cardan joint 54.

At the pin 40 of the cleaning head 34 is a fixing device 56 (see. FIG. 9 ) for the hinge device 52 (and thus the handlebar assembly 48). The fixing device 56 includes, for example, one or more eyelets 58 to which the hinge device 52 can be fixed by a bolt or the like. The eyelet 58 protrudes in particular beyond the ring member 44 of the pivot bearing 36, so that the rotation of the cleaning head 34 is not hindered by the pin 40 on the pivot bearing 36. The hinge device 52 is thereby arranged on the pivot bearing 36.

The handlebar device 48 includes a handlebar 60. The handlebar 60 may be configured in one piece or in several parts. The handlebar 60 has an extension direction 62. The handlebar assembly 48 with the handlebar 60 extends upwardly from the support member 14 toward the rearward end 24; the handlebar device 48 is articulated on the cleaning head 34, which is arranged on the chassis 12 in the region of the front end 22, in the region of the front end 22.

The handlebar 60 is at an acute angle 64 (see. FIG. 2 ) to the chassis 12 and in particular to the holding element 14. The acute angle 64 is based on the straight-ahead driving direction 26 and on a flat surface 20 when the floor cleaning machine 10 is placed on this. In particular, the acute angle 64 lies to the first side 16 of the holding element 14.

The acute angle 64 is in a range between 30 ° and 60 ° and in particular between 40 ° and 50 °. In one embodiment, the acute angle 64 is 45 °.

The handlebar 60 is about a pivot axis 66 (see. FIG. 4 ) pivotable. This pivot axis 66 coincides with the extension direction 62, that is, it lies in the acute angle 64 to the chassis 12. On the chassis 12 sit one or more support members 68, on which the handlebar assembly 48 is supported. In the region of the front end 22, a support element 70 is provided ( FIG. 7 ), which is fixed against rotation on the holding element 14 on the first side 16. This support member comprises a ring member 72 and has a recess 74 through which the handlebar 60 has penetrated. In the recess 74, the handlebar 60 is rotatably supported about the pivot axis 66. The ring element 72 has, for example, the shape of a capped annular cylinder. By the support member 70, the handlebar means 48 is rotatably supported in the vicinity of the end 50 of the chassis 12.

It can be on the chassis 12, one or more other support members 76 (see. FIG. 5 ) are provided for rotatably supporting the handlebar means 48, wherein the at least one support member 76 is spaced from the support member 70.

The only degree of freedom of movement of the handlebar 48 is the pivotability about the pivot axis 66. (The pivoting can basically be limited or allow a rotation of 360 °.) By the one or more support members 70, 76, the mobility is limited to this degree of freedom. About the hinge device 52, the pivotal movement of the handlebar assembly 48 is converted to the cleaning head 34 to allow pivoting of the cleaning head 34 about the pivot axis 38. Accordingly, the gimbal 54 is formed. The cardanic joint 54 includes, for example, a universal joint arrangement with, for example, two joints with transverse joint axes. In another embodiment, the hinge device 52 is formed by a transmission device such as crown gear, bevel gear or the like.

The handlebar assembly 48 extends from the front end 50 to a rearward end 78. At the forward end 50, the handlebar assembly 48 is hinged to the cleaning head 34 in close proximity to the support member 14. The rear end 78 has a height distance H (see. FIG. 2 ) to the holding element 14. It is thereby formed a kind of triangular structure with an equilateral triangle.

At the rear end 78, a Steuerradeinrichtung 80 is arranged. This control wheel device 80 comprises gripping elements 82, which are spaced apart from one another. An operator may then grip a handle member 82 with both the left hand and the right hand to operate the handlebar assembly 48. In particular, the spaced grip elements 82 are connected to each other.

It can be provided that 80 further controls the floor cleaning machine 10 are arranged on the control wheel device.

The rear end 78 of the handlebar assembly 48 and thus also the Steuerradeinrichtung 80 protrudes beyond the rear end 24 of the chassis 12 out. A projection of the steering wheel 80 and the rear end 78 on the ground 20 is based on the straight-ahead direction of travel 26, behind the rear end 24. An operator is running during operation of the floor cleaning machine 10 behind the rear end 24; The floor cleaning machine 10 is a trailer machine. He can grip the wheel 80 on the handle members 82 and thus cause corresponding changes in direction. The height of the control wheel 80 with respect to the ground 20 is such that at least based on an average size of an operator of this, the floor cleaning machine 10 can operate fatigue. In particular, based on the average size, an operator does not have to bend over in order to grasp the steering wheel device 80, or does not have to stretch upward.

In one embodiment, it is contemplated that the handlebar assembly 48 is adaptable to the specifics of an operator. In particular, the handlebar 60 is formed in several parts. Their length between the end 50 and the rear end 78 in the extension direction 62 is detectably adjustable. This is in FIG. 1 indicated by the reference numeral 84. For example, the handlebar 60 is designed to be multi-part, wherein the position of a second part 84 relative to a first part 86 lockable slidably.

In one embodiment ( FIG. 11 ) comprises the handlebar means 48 a (first) rod member 162. The Steuerradeinrichtung 80 is disposed on a sleeve 164, said sleeve 164 is mounted on the first rod member 162; the sleeve 164 has a recess 166 into which the first rod element 162 is immersed.

The sleeve 164 is lockable displaceable on the first rod member 162. Thereby, the length of the combination of first rod member 162 and sleeve 164 and thus the distance between the end 50 and the rear end 78 of the handlebar assembly 48 can be set detectable.

It is provided as a whole designated 168 locking device. This includes, for example, a clamping lever 170. The clamping lever 170 is arranged, for example, pivotally mounted on the first rod member 162. The sleeve 164 has a slot-shaped recess 172, on which a clamping region 174 of the clamping lever 170 is located. If the clamping portion 174 is not effective by a corresponding position of the clamping lever 170, then the sleeve 164 can be moved to the first rod member 162. In the region of the recess 172, the sleeve 164 has a contact surface 176 for the clamping region 174 of the clamping lever 170.

To adjust the length of the handlebar assembly 48 between the end 50 and the rear end 78, the clamping lever 170 is released so that the clamping portion 174 is in an inoperative position. It can then slide the sleeve 164 on the first rod member 162 in the desired position. The clamping lever is then correspondingly folded so that the clamping region 174 acts on the contact surface 176 and a clamping is achieved. As a result, the relative position between the sleeve 164 and the first rod member 162 is fixed.

The clamping lever 170 is particularly designed so that when the folded and the clamping portion 174 is effective, a self-locking is achieved.

In principle, it is also possible that (with appropriate design of the hinge device 52) the handlebar 48 is detectably pivotally mounted on the chassis 12 with a pivot axis parallel to the wheel axle 32 when the cleaning head 34 in the straight-ahead direction 26 is. In particular, the pivot axis 178 is parallel to a rotation axis 130 of a brush roller 128 of the cleaning head 34 (see below).
It can be provided that the handlebar device 48 as a whole on the chassis 12 is pivotally lockable. In one embodiment, the handlebar device is "in itself" pivotable ( FIG. 11 ). For this purpose, the handlebar 48 has the first rod member 162 and further includes a second rod member 180. This second rod member 180 is provided with the end 50 and connected to the hinge 52. The first rod member 162 and the second rod member 180 are connected via a pivot bearing 182. This pivot bearing 182 has a pivot axis 178, which is parallel to the axis of rotation 130 of the brush roller 128 and parallel to the wheel axle 32 of the wheel assembly 28 when the handlebar assembly 48 is in such a rotational position that the cleaning head 34 for the straight-ahead driving direction 26 is positioned.

The pivot bearing 182 is associated with a locking device 184. Thereby, a relative pivotal position between the first rod member 162 and the second rod member 180 can be detected. The locking device 184 has, for example, a clamping device which clamps the first rod element 162 with the second rod element 180 on the pivot bearing 182. This clamping device comprises, for example, a (in particular manually operable) clamping screw. Other ways of determining such as a detent engagement determination and the like are possible.

The pivot bearing 182 is located (relative to the direction of gravity, when the floor cleaning machine 10 is placed on a flat surface 20) above a first tank 90 (see below), on which the handlebar assembly 48 is passed. It is also outside and in particular above a designated as a whole with 186 housing cover the floor cleaning machine 10. In this case, then the only allowed movement possibility of the second rod member 180 relative to the chassis 12 is a rotation about the pivot axis 66th

The pivot bearing 182 is formed so that the second rod member 180 and the first rod member 162 and the Steuerradeinrichtung 80 and the sleeve 164 have the same axis of rotation, namely the pivot axis 66. With respect to a pivoting of the pivot axis 66 are the second rod member 180 and the first rod member 162 rigidly connected to each other, even when the locking device 184 is released.

The part of the handlebar device 48, which lies above the pivot bearing 182, has in comparison to the second rod member 180 with released locking device 184 and released locking device 168 further degrees of freedom of movement: The first rod member 162 is pivotally mounted on the pivot bearing 182. The part of the handlebar device which lies between the pivot bearing 182 and the rear end 78 is variable in length via the relative positionability of the sleeve 164 on the first rod element 162.

In principle, it is possible that only one ascertainable pivotability of the first rod element 182 to the second rod element 180 is present or only a length variability of the handlebar device 48 is present. In an advantageous embodiment, the handlebar device 48 is variable in both its length and there is a pivoting on the handlebar means 48 is provided.

At the in FIG. 11 In the embodiment shown, the pivot bearing 182 is arranged so that the locking device 184 lies outside the housing cover 186. Furthermore, the locking device 168 is arranged so that it lies outside the housing cover 186. An operator can thereby easily and quickly adapt the handlebar assembly 48 to his needs.

In particular, a height position of the control wheel device 80 can be adapted by the length variability. Optionally, additionally or alternatively, the adjustment may be performed by adjusting a relative pivot angle between the second rod member 180 and the first rod member 162. (In this case, the acute angle 64 refers to the second rod member 180.)

In order to achieve a simple operability with regard to pushing and pulling the floor cleaning machine 10, it is preferred that in operation the first bar element 162 and the second bar element 180 are oriented collinearly and the height adjustment takes place via the length variability.

About the pivoting on the handlebar 48, through which in particular the handlebar 48 is formed foldable, the relative height of the floor cleaning machine 10 can be lowered. Thereby, the floor cleaning machine 10 can be brought into a preferred form for transport operations and storage by the second rod member 180 is folded toward the front end 22. In particular, the length of the handlebar 48 is then minimized by the sleeve 164 is moved to a corresponding position.

The handlebar assembly 48 extends beyond the rear end 24 of the chassis 12. In principle, the control wheel device 80 forms the rearmost point 88 relative to the straight-ahead driving direction 26 (cf. FIG. 2 ) The floor cleaning machine 10. The handlebar 48 forms between the end 50 and the end 78 of a rigid object, which is mounted about the pivot axis 66. The handlebar device 48 thereby forms a push rod device; By applying pressure to the control wheel 80, an operator can push the floor cleaning machine 10 as a whole. The handlebar device 48 forms a steering of the floor cleaning machine 10 and a push guide (or pull guide in a backward movement) of the floor cleaning machine 10th

On the chassis 12, a first tank 90 and a second tank 92 are arranged. The first tank 90 is a dirty water tank. The second tank 92 is a tank for cleaning liquid.

The second tank 92 is disposed on the second side of the holding member 14. It is adapted in its shape to the wheel device 28. He has appropriate Open areas 94, wherein in the open area 94 each of the left rear wheel 30a and the right rear wheel 30b are positioned.

Furthermore, the second tank 92 on a side 96, which faces the cleaning head 34, is formed so that a pivoting of the cleaning head 34 about the pivot axis 38 in a certain pivoting range is possible, said pivoting area relative to the straight-ahead direction 26 to the left and at least 180 ° to the right. This will be explained in more detail below.

The second tank 92 is configured to receive an optimized amount of cleaning fluid while not limiting the pivotability of the cleaning head 34, which is pivotable below the support member 14.

On the chassis 12 is a pump device 98 (see. FIG. 7 ) arranged. The pump device is fluid-effectively connected to a suction side 100 with the second tank 92. From the suction side 100 of the pump device 98, a suction line 102 leads into the tank 92 in order to suck in cleaning liquid. With a pressure side 104, the pump device 98 is in fluid-effective connection with a loading device 106 for cleaning fluid of the cleaning head 34, as will be explained in more detail below.

The first dirty water tank 90 is disposed on the first side 16 of the holding member 14. It is designed so that it is adapted in shape to the guidance of the handlebar 48 device. It has a free space 108 through which the handlebar device 48 has penetrated.

On the holding element 14, a holding device 110 is arranged, which a battery device 112 (see, for example FIG. 3 ) holds. The holding device 110 is arranged above the wheel device 28. The Battery device 112, which in particular comprises one or more rechargeable batteries, usually has a considerable mass fraction of the total mass of the soil cleaning machine 10. By arranging on the retaining element 14 directly above the wheel device 28, optimized balance of power can be achieved.

The holding device 110 comprises a wall 114 (cf., for example FIG. 1 ), which projects transversely and in particular vertically beyond the holding element 14 on its first side 16. The wall 114 and the retainer 110 as a whole are formed so that they are positioned at a distance from the handlebar assembly 48 below it. The wall 114 is a boundary to a room in which the first tank 90 (and related elements) are located.

Furthermore, a charger 116 for the battery device 112 is fixedly arranged on the holding device 110. The charger 116 can be connected in particular to the mains current and ensures by a corresponding conversion for the charging of the battery in the battery device 112.

The charger 116 is disposed rearward of the battery device 112 with respect to the straightforward forward direction 26, that is, it is closer to an operator grasping the control wheel device 80 than the battery device 112.

Between the first tank 90 and the wall 114, a turbine device 118 with a suction motor is arranged below the handlebar device 48. The turbine means is in fluid communication with the first tank 90 on a pressure side; sucked dirty water is conveyed into the first tank 90. With a suction side, the turbine device 118 is in fluid-effective connection with a suction device 120 (FIG. FIG. 1 ) of the cleaning head 34.

Between the first tank 92 and the retainer 110, trim elements are arranged which form a closed housing for protection of internal components (such as the turbine device 118, fluid lines, electrical lines, etc.).

The battery device 112 provides electrical power to the naturally-aspirated turbine device 118, the pump device 98, and a drive device 122 of the cleaning head 34.

The cleaning head 34 includes a housing 124. The housing 124 has a first housing portion 126 which is open to the ground 20 down to. In the first housing portion 126, a brush 128 (brush roller) is arranged. The brush 128 is rotatable about a rotation axis 130. The axis of rotation 130 is, when the cleaning head 34 is in the forward travel position, in which the floor cleaning machine 10 moves in the straight forward direction 26, parallel to the wheel axis 32. The axis of rotation 130 is transverse and in particular perpendicular to the pivot axis 38 of the cleaning head 34. The brush 128 is formed by a brush roller with corresponding bristles, which are dipped out of the downwardly open region of the first housing portion 126 and can act on the substrate 20 to be cleaned.

On the first housing portion 126, a closed second housing portion 132 is arranged. This second housing area receives the drive device 122 for rotational rotation of the brush 128. The drive device 122 in this case comprises an electric motor 134, which is supplied by the battery device 112 with electric current. There are corresponding lines from the battery device 112 to the cleaning head 34 available.

The electric motor 134 is dimensioned so that the rotational rotation of the brush roller 128, a support of the drive is achieved. For example, the electric motor 134 has a power of at least 150 W with a torque of at least 1.0 Nm at 1600 rpm.

The loading device 106 can supply cleaning fluid to the substrate 20 in the region of the brush 128. The loading device 106 comprises a pot 136 (FIG. FIG. 8 ), which is non-rotatably mounted on the cleaning head 34. The pot 136 is arranged above the second housing portion 132. The pot 136 has an annular receiving space 138 which surrounds the pin 40 of the pivot bearing 36. From the receiving space 138, one or more lines for cleaning fluid lead to the brush (brush roller) 128. The receiving space 138 is correspondingly sealed so that a fluid path 140 (FIG. FIG. 10 ) defined and is guided past the electric motor 134.

To the pressure side 104 of the pump device 98, a line 142 is connected to a mouth 144. The line 142 is particularly rigid and formed, for example in the form of a nozzle. The mouth 144 is oriented so that cleaning fluid can lead into the receiving space 138. The position of the line 142 and the mouth 144 to the receiving space 138 is dependent on the pivotal position of the cleaning head 34. The line 142 and the mouth 144 are arranged and designed so that at each pivot position cleaning liquid, which is provided via the pump device 98 , flows into the receiving space 138, wherein at different pivot positions, the angular position of the mouth 144 (as a rotation angle to the pivot axis 38) varies. As a result, the sealing effort for coupling cleaning liquid into the loading device 106 of the pivotable cleaning head 34 is minimized.

The suction device 120 comprises a suction bar 146, which is arranged on the cleaning head 34 and is pivotable with the latter. The suction bar 146 extends in a direction parallel to the first housing portion 126. In a position of the cleaning head 34, in which the straight-ahead driving direction 26 is realized, the suction beam 146 is at least approximately parallel to the wheel axle 32. The suction beam 146 is included located behind the brush 128, that is, it is closer to the rear end 24 than the brush 128. In the straight forward direction of travel 26, the suction bar 146 is positioned between the brush 128 and the side 96 of the second tank 92.

The free space between the cleaning head 34 and the second tank 92 is designed so that the cleaning head starting from the straight-ahead driving direction 26 (see. Figure 7a ) each to the left (indicated by the reference numeral 148) and to the right (indicated by the reference numeral 150) by more than 90 ° and preferably at least 180 ° and in particular 180 ° and more is pivotable.

On the suction bar 146, a connection 152 is arranged for a hose. A corresponding hose leads from the connection 152 to the turbine device 118 in order to be able to couple suctioned-off dirty water into the first tank 90. The tube (not shown in the drawing) is designed and guided so that it does not hinder the pivoting of the cleaning head 34.

At the cleaning head, a roller device 154 is arranged, which has at least one support roller. The roller device 154 is in particular positioned between the brush 128 and the suction bar 146. In a cleaning operation of the floor cleaning machine 10, this is based on the roller device 154 on the substrate 20 in such a way that on the brush 128, a cleaning operation is feasible. The cleaning head 34 with the roller device 154 thereby forms a front wheel device of the floor cleaning machine 10.

On the cleaning head 34, a lifting device designated as a whole 156 is arranged. By this lifting device 156, the roller device 154 with the suction beam 146 is hinged. In a first position, which is a non-operative position, it can be achieved that in the region of the cleaning head 34, the floor cleaning machine on the roller device 154 is supported while the brush 128 is not in contact with the substrate 20. In addition, the suction bar 146 is then spaced from the ground 20. In this non-operative position, the floor cleaning machine 10 is movable, the brush 128 and the suction bar 146 are spared because they do not touch the ground.

In a second position, which has already been described above, the roller device 154 is folded so determined that the suction bar 146 and the brush 128 act on the substrate 20 to be cleaned.

For transferring between the first position and the second position or vice versa, in particular a foot pedal 158 is provided.

The cleaning head 34 is associated with a sensor or switch 160 which detects whether the first position or second position is present. In the transition from the second position to the first position, there is a change in the application of the switch 160. This can be used to turn on or off in particular automatically the suction motor. When an operator mechanically transfers the roller assembly 154 and the suction beam 146 from the first position (non-operative position) to the second position via the foot pedal 158, the suction motor is turned on. When an operator makes a transition from the second position to the first position, then via the switch 160, the suction motor is turned off.

The floor cleaning machine 10 according to the invention functions as follows:
An operator can guide and push or pull the floor cleaning machine 10 through the handlebar device 48 arranged in the acute angle 34. This results in a compact construction, with components of the floor cleaning machine 10 such as the turbine device 118 and the first tank 90 are positioned at and below the handlebar assembly 48. Elements of the floor cleaning machine 10 with great mass and in particular the battery device 112 read while positioning directly over the wheel 28 and supported accordingly.

The brush 128 of the cleaning head 34 is driven about a rotation axis 130 which is parallel to the wheel axis 32 in the straight-forward direction 26. This drive provides with a corresponding direction of rotation of the brush 128 for a forward movement of the floor cleaning machine 10 as a whole. This will help push the operator and reduce the operator's effort. It results in a fatigue-reduced working.

The cleaning head 34 is based on the straight-ahead driving direction 26 to the left and right by at least 180 ° and in particular by more than 180 ° pivotally. As a result, the cleaning head 34 with the brush 128 can also lead to less accessible corner areas. Furthermore, it is possible to change from a straight-ahead driving direction 26 in an opposite driven reverse direction (without changing the direction of rotation of the electric motor 134).

The handlebar device 48 is arranged in particular in a central region with respect to the projection of the retaining element 14. It and the control wheel 80 do not protrude beyond a left and right side of the floor cleaning machine 10. As a result, the floor cleaning machine 10 can be driven into the corner area without the steering restricting the range of motion of the floor cleaning machine 10 as a whole (for example, by abutting against a wall).

The energy-consuming elements of the floor cleaning machine 10 are supplied via the battery device 112 with electric current. This results in a compact, self-sufficient floor cleaning machine, which can be operated fatigue-free for an operator and is manoeuvrable, so that even near-wall areas and corner areas on effective Way are cleanable. There is both a loading of a substrate to be cleaned with cleaning liquid 20 and a suction of dirty water.

By positioning the holding device 110 for the battery device 112, it is also possible to use batteries with a high energy density (with a correspondingly high space requirement).

The handlebar assembly 48 has a length between the end 50 and the end 78 which is greater than the length of the chassis 12 between the front end 22 and the rear end 24. More specifically, said length of the handlebar assembly 48 is at least 1.3 times , preferably at least 1.35 times and preferably at least 1.4 times greater than the length of the chassis 12 between the front end 22 and the rear end 24.

LIST OF REFERENCE NUMBERS

10

Floor cleaning machine

12

chassis

14

retaining element

16

First page

18

Second page

20

underground

22

Front end

24

Rear end

26

Straight-forward direction

28

wheel means

30a

Left rear wheel

30b

Right rear wheel

32

wheel axle

34

cleaning head

36

pivot bearing

38

swivel axis

40

spigot

42

upper area

44

ring element

46

recess

48

Handlebar facility

50

The End

52

joint device

54

Cardan joint

56

fixing device

58

eyelet

60

handlebars

62

extension direction

64

acute angle

66

swivel axis

68

support element

70

support element

72

ring element

74

recess

76

support element

78

Rear end

80

Steuerradeinrichtung

82

handle element

84

Second part

86

First part

88

Rear point

90

First tank

92

Second tank

94

outdoor Space

96

page

98

pump means

100

suction

102

suction

104

pressure side

106

loading device

108

free space

110

holder

112

battery means

114

wall

116

charger

118

The turbine apparatus

120

suction

122

driving means

124

casing

126

First housing area

128

brush

130

axis of rotation

132

Second housing area

134

electric motor

136

pot

138

accommodation space

140

fluid path

142

management

144

muzzle

146

squeegees

148

"to the left"

150

"to the right"

152

connection

154

roller device

156

lifter

158

pedal

160

counter

162

First rod element

164

shell

166

recess

168

Locking device

170

clamping lever

172

recess

174

clamping range

176

contact surface

178

swivel axis

180

Second rod element

182

pivot bearing

184

Locking device

186

housing panel

Claims (15)

1. Manually guided floor cleaning machine, comprising a chassis (12) with a front end (22) and a rear end (24) in relation to a straight ahead forward travel direction (26), a wheel arrangement (28), which is arranged on the chassis (12) in the region of the rear end (24), and a cleaning head (34), which is pivotably arranged on the chassis (12) in the region of the front end (22), at least one brush (128) being arranged on the cleaning head (34) and a drive device (122) being arranged for the driven rotation of the at least one brush (128), wherein, in the straight ahead forward travel direction (26), a rotational axis (130) of the at least one brush (128) is parallel to a wheel axis (32) of the wheel arrangement (28), characterized in that the cleaning head (34) is pivotable to the left and/or the right by more than 90° in relation to the straight ahead forward travel direction (26).
2. Manually guided floor cleaning machine according to claim 1, characterized in that the cleaning head (34) is pivotable to the left and/or the right by at least 180° and, in particular, more than 180°.
3. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that a pivot axis (38) for the pivotability of the cleaning head (34) is oriented transversely to the wheel axis of the wheel arrangement (28).
4. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that the drive device (122) has at least one electric motor (134), which is supplied with electric current by means of a battery device (112), which is arranged on the chassis (12).
5. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that arranged on the cleaning head (34) is an application device (106) for cleaning liquid, which is in fluidic connection with a tank (92) arranged on the chassis (12), and in particular in that the application device (106) has a vessel (136), which is non-rotatably arranged on the cleaning head (34) and into which at least one pipe (142) opens, which is in fluidic connection with the tank (92) for cleaning liquid, and in particular in that a position of a mouth (144) of the at least one pipe (142) into the vessel (138) depends on a pivoting position of the cleaning head (34) relative to the chassis (12), and in particular in that the vessel is seated on a pivot bearing (36) for the pivotability of the cleaning head (34) on the chassis (12), and in particular in that the vessel (138) has an annular region, which surrounds the pivot bearing (36).
6. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that a suction device (120) is arranged on the cleaning head (34), said suction device being in fluidic connection with a tank (90) for dirty water, which is arranged on the chassis (12), and in particular in that the suction device (120) comprises at least one suction beam (146), which is arranged on the cleaning head (34), and in particular characterized by a lifting device (156) for the at least one suction beam (146), which lifting device is arranged on the cleaning head (34), and in particular in that the lifting device comprises a foot pedal (158), and in particular in that a sensor or switch (160) is associated with the lifting device (158), a sensor signal or a switch signal bringing about a start and/or a stop of a suction motor, and in particular in that the suction motor is arranged on the chassis (12).
7. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that a roller device (154) is arranged on the cleaning head (34), said roller device having at least a first position and second position, wherein, in the first position, the floor cleaning machine is supported on the roller device (154) and the at least one brush (128) is not in contact with a base (20), on which the floor cleaning machine is standing and, in the second position, the at least one brush (128) acts on the base.
8. Manually guided floor cleaning machine according to any one of the preceding claims, characterized by a steering rod device (48), which is articulated on the cleaning head (34), is supported on the chassis (12) and which extends in a direction upwardly away from the chassis (12) toward the rear end (24), and in particular in that the steering rod device (48) is oriented, at least in portions, at an acute angle (64) with respect to a level base (20) when the floor cleaning machine is standing with the wheel arrangement (28) and the cleaning head (34) on the level base (20), and in particular in that the acute angle (64) is in the range between 30° and 60° and in particular in the range between 40° and 50° and in particular at least approximately 45°, and in particular in that a steering wheel arrangement (80) is arranged on the steering rod device (48) at or close to an end (70), which is remote from an articulation point on the cleaning head (34), and in particular in that the steering wheel arrangement (80), in a projection onto a base (20), on which the floor cleaning machine is standing, projects beyond the rear end (24) of the chassis (12).
9. Manually guided floor cleaning machine according to claim 8, characterized in that the steering rod device (48) is configured to be fixably longitudinally variable and/or fixably pivotable with respect to the chassis (12), wherein the steering rod device (48) is pivotable as a whole and/or parts (162, 180) of the steering rod device (48) are pivotable relative to one another, and in particular in that a pivot axis (178) of a pivot bearing (182) for the pivotability of the steering rod device (48) is oriented at least approximately parallel to a rotational axis (130) of a brush roller (128) of the cleaning head (34) and/or a wheel axis (32) of the wheel arrangement (28) in a position of the steering rod device (48) for the straight ahead forward travel direction (26), and in particular in that a pivot bearing (182) is positioned on the steering rod device (48) above a tank (90), past which the steering rod device (48) is guided, and/or is positioned outside a housing casing (186), which is arranged on the chassis (12), and in particular in that the steering rod device (48) has a sleeve (164), on which a steering wheel arrangement (80) is arranged, and in that a rod element (162) of the steering rod device (48) is inserted in the sleeve (164), a longitudinal position of the sleeve (164) being fixably variable on the rod element (162).
10. Manually guided floor cleaning machine according to claim 8 or 9, characterized in that the steering rod device (48) forms a pushing rod device for pushing the floor cleaning machine and/or a pulling rod device for pulling the floor cleaning machine, and in particular in that the steering rod device (48) is articulated to the cleaning head (34) by means of a joint device (52), and in particular in that the joint device (52) comprises a cardan joint, and in particular in that the joint device (52) is arranged on a pivot bearing (36) for the pivotability of the cleaning head (34) on the chassis (12), and in particular in that at least one support element (70) is non-rotatably arranged on the chassis (12), said support element having a recess (74), through which the steering rod device (48) is inserted and in which the steering rod device (48) is rotatable, and in particular in that the steering rod device (48) has a one-part or multi-part steering rod (60), which is articulated on the cleaning head (94).
11. Manually guided floor cleaning machine according to any one of claims 8 to 10, characterized in that the chassis (12) has a holding element (14), on which the cleaning head (34) is pivotably arranged, and in particular in that the holding element (14) is formed as a holding plate or comprises a holding plate, and in particular in that a first tank (90) and a second tank (92) are arranged on the holding element (14), wherein the first tank (90) is seated on a first side (16) of the holding element (14) and the second tank (92) is seated on a second side (18) opposite the first side (16), and wherein the second side (18) faces a base (20), on which the floor cleaning machine is standing, and in particular in that the steering rod device (48) is supported on the first side (16), and in particular in that the steering rod device (48) rises above the first side, and in particular in that the first tank (90) is formed in such a way that a free space is formed, through which the steering rod device (48) is guided, and in particular in that the wheel arrangement (28) is arranged on the second side (18), and in particular in that the second tank (92) is adapted with respect to its shape to the wheel arrangement (28), and in particular in that the second tank (92) is shaped in such a way that a free space is formed for the pivotability of the cleaning head (34), and in particular in that the first tank (90) is a dirty water tank and the second tank (92) is a cleaning liquid tank.
12. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that a holding device (110) for a battery device is arranged on the chassis (12) and, in particular, on a holding element (14) of the chassis (12), and in particular in that the holding device (110) is arranged above the wheel arrangement (28), and in particular in that the holding device (110) projects upwardly away from a first side (16) of the holding element (14), the first side (16) being remote from a second side (18), which faces a base (20), on which the floor cleaning machine is standing, and in particular in that the holding device (110) has a wall (114), which is oriented transversely to the first side (16) of the holding element (14), and in particular in that the holding device (110) comprises a holding region for a charging apparatus (116) for the battery device (112), and in particular in that the charging apparatus (116) is arranged closer than the battery device (112) to the rear end in relation to a direction between the front end (22) and the rear end (24) of the chassis (12).
13. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that a turbine device (118) for sucking up dirty water is arranged on the chassis (12) and, in particular, on a holding element (14) of the chassis (12), which turbine device is in fluidic connection with a dirty water tank (90) and the cleaning head (34).
14. Manually guided floor cleaning machine according to any one of the preceding claims, characterized in that a pump device (98), which is in fluidic connection with a cleaning liquid tank (92) and the cleaning head (34), is arranged on the chassis (12) and in particular on the holding element (14) of the chassis (12).
15. Manually guided floor cleaning machine according to any one of claims 8 to 14, characterized in that the steering rod device (48) has a maximum length between an articulation point on the cleaning head (34) and a rear end (78), said length being at least 1.3 times as great as a length of the chassis (12) between the front end (22) and the rear end (24).

Images