EP3644817B1 - Floor cleaning machine having positioning device for sweeping tool - Google Patents

Description

The invention relates to a floor cleaning machine, comprising a chassis, a sweeping tool holder which is mounted on the chassis so as to be pivotable about a first pivot axis, a sweeping tool which is seated on the sweeping tool holder, and a positioning device via which the sweeping tool holder can be positioned for a processing position of the sweeping tool on a base on which the floor cleaning machine stands, and the sweeping tool holder can be positioned in a distance position of the sweeping tool from the base.

From the US$7,120,961 A brush wear adjustment system is known in which wear of rotary brush bristles is constantly detected and a rotation speed of the rotary brush is automatically increased to maintain a desired bristle tip speed.

From the CN 203701004 U A disc brush is known.

From the US6,971,137 B2 A soil treatment machine is known with a hood for covering a drive motor, wherein the hood has an air inlet.

From the DE 103 42 454 A1 A floor cleaning machine is known which is driven by an internal combustion engine. A hood is provided for covering an engine compartment, which is designed as a double wall, with an air duct space being formed between the walls of the hood.

From the DE 196 44 570 A1 A mobile floor cleaning device is known in which a cleaning liquid tank is designed as a one-piece, closed hollow body made of plastic and a dirty liquid container is designed in the form of a double-walled receptacle of the hollow body.

From the CN 202181530 U is a floor cleaning machine known.

From the EP 1 290 971 B1 A method for cleaning the filter of a suction system of a mobile floor cleaning machine is known.

From the EP 2 119 389 A2 A filter device for filtering impurities from a gas stream is known.

In the unpublished international patent application PCT/EP2017/054453 of 27 February 2017 a floor cleaning machine is described, comprising a suction device, a filter device which is associated with the suction device, and a cleaning device for the filter device, wherein the cleaning device comprises a pivoting lever which is arranged such that it can be operated by an operator of the floor cleaning machine who is positioned for proper operation of the floor cleaning machine. The cleaning device comprises an angular gear to which the pivoting lever is coupled. The cleaning device further comprises a movable scraper for the filter device which is coupled to the angular gear, wherein a pivoting movement of the pivoting lever causes a cleaning movement of the scraper on the filter device.

Another generic floor cleaning machine is the WO 2013/017167 A1 revealed.

The invention is based on the object of providing a floor cleaning machine of the type mentioned above, which can be operated in a simple manner with optimized cleaning results.

This object is achieved in the floor cleaning machine mentioned at the outset in that the positioning device comprises an actuating lever which is pivotably connected to the chassis about a second pivot axis, which is coupled to the sweeping tool holder, and via which the sweeping tool holder can be brought into the processing position and into the distance position, and that in the processing position a The pivoting position of the operating lever is determined by the height of the sweeping tool, whereby the height of the sweeping tool depends on wear.

In the solution according to the invention, the sweeping tool holder and thus the sweeping tools are positioned via the operating lever and in particular in the distance position and in the processing position.

The operating lever is arranged and designed in such a way that in the operating position its pivoting position depends on the height of the sweeping tool and thus on the wear of the sweeping tool. The wear on the sweeping tool can therefore be easily read from the pivoting position of the operating lever.

This is particularly advantageous if, for example, the sweeping tool is a (main) sweeping roller which is at least partially arranged under the chassis and, in particular, is at least partially covered on the outside by an apron, so that the height of the sweeping tool cannot be read directly.

The swivel position of the operating lever is then an indicator of wear and tear and can, for example, indicate that the sweeping roller needs to be replaced.

This can be indicated directly to a driver via a corresponding wear indicator, for example by means of a scale which is arranged in the area of the operating lever, or a pivoting position of the operating lever in the processing position can be detected via a sensor and a corresponding display can be made.

In principle, it is also possible to use the wear condition of the sweeping tool, which can be detected by the swivel position of the operating lever, to make adjustments such as the rotation speed of the sweeping tool.

The positioning device according to the invention can be designed in a simple and space-saving manner. It allows an operator of the floor cleaning machine to easily position the corresponding sweeping tool.

In particular, the sweeping tool comprises bristles and the height of the sweeping tool is determined by a bristle length, whereby bristles shorten as they wear. Wear then manifests itself in a reduction in the height of the sweeping tool, whereby a reduction in the height of the sweeping tool in turn means a variation in the pivot position of the actuating lever in the processing position.

It is advantageous if the operating lever is assigned a wear indicator, on which the sweeping tool wear can be read via the swivel position of the operating lever. This provides easy access for an operator. Even if the sweeping tool is not visible to an operator, for example because it is covered by aprons, the wear status of the sweeping tool can be easily determined (indirectly) via the wear indicator as the wear status of the bristles. If necessary, the sweeping tool can then be replaced, for example.

In a structurally simple embodiment, the wear indicator is arranged on a housing and in particular on a hood. This makes it easy to determine the state of wear of the sweeping tool.

It is also advantageous if the wear indicator is arranged in an area which is supported on the chassis or connected to the chassis This allows a tolerance chain to be kept small so that the wear indicator provides an accurate value.

It is advantageous if the operating lever is arranged and designed in such a way that the operating lever pivots from the distance position to the processing position in a pivoting direction away from the base. This makes it easy to implement a wear indicator. In particular, the higher the operating lever is pivoted, the greater the wear.

It is also advantageous if the operating lever is arranged and designed in such a way that the swivel angle in the operating position relative to the distance position is greater the smaller the height of the sweeping tool. This makes it easy to implement a wear indicator. This results in a simple structural design.

It is advantageous if the operating lever is a foot pedal lever. This results in a structurally advantageous design. The corresponding positioning device can be designed in a space-saving manner. Actuation paths are relatively small. However, it is also possible in principle for the operating lever to be a hand lever, for example.

It is advantageous if a guide element is provided which is connected to the chassis and on which the operating lever is guided. This guide element can be used as a type of link to lock the distance position and also to determine the processing position.

It is then advantageous if the actuating lever on the guide element has a pivoting movement around the first pivot axis and a transverse movement with a movement component in a direction parallel to the first pivot axis. The pivoting movement around the first pivot axis basically enables the positioning of the sweeping tool holder with the sweeping tool. The transverse mobility allows a locking position to be reached or released for adjusting the distance position.

It is advantageous if the guide element has a slotted area through which the operating lever is guided. The slotted area can be used to easily lock the working position in the manner of a link. Furthermore, a wear indicator can be easily implemented using the guide element.

It is advantageous if the slot area comprises a first area for fixing the distance position and a second area for establishing the processing position, wherein a transition of the actuating lever between the first area and the second area can be carried out by a transverse movement of the actuating lever with a movement component in a direction parallel to the first pivot axis. This makes it easy to reach and fix or release the distance position. A corresponding pivot position for the actuating lever can be achieved, in which the processing position of the sweeping tool is reached. This pivot position of the actuating lever in the second area of the slot area in turn characterizes the height of the sweeping tool.

It is advantageous if the first area has a stop for the operating lever, which specifies the distance position and which in particular limits the pivoting movement of the operating lever away from the base. This makes it easy to lock the distance position. This locks a specific position of the sweeping tool holder with the sweeping tool.

It is advantageous if the first area is connected to the second area and/or the first area has a length which is smaller than a corresponding length of the second area. By connecting the first area to the second area, the operating lever can be first area into the second area or from the second area into the first area. Due to the different lengths of the first area and the second area, for example, the first area can be used to lock the distance position and the second area can be used to specify the actuation position.

It is advantageous if the first pivot axis and the second pivot axis are at least approximately parallel to each other. This results in a simple structural design.

Preferably, a web is pivotably connected to the operating lever at a distance from a pivot bearing, via which the operating lever is pivoted to the chassis about the first pivot axis, and the web is coupled to the sweeping tool holder, whereby the web effects the coupling between the operating lever and the sweeping tool holder. This allows a force or movement on the operating lever to be transferred to the sweeping tool holder. This allows the sweeping tool holder and thus the sweeping tool to be positioned accordingly.

It is advantageous if the web is coupled to the sweeping tool holder via a rotary-sliding bearing. This rotary-sliding bearing allows a pivoting connection and a translational movement between the web and the sweeping tool holder. This makes it easy to transfer a force or movement on the operating lever to the sweeping tool holder. Furthermore, a translational evasive movement of the web can be achieved, which enables an effective space-saving design of the floor cleaning machine with regard to the movable sweeping tool holder.

It is advantageous if the third pivot axis is oriented parallel to the first pivot axis and/or the second pivot axis. This results in a simple, space-saving structure.

The object mentioned at the outset is further achieved according to the invention in that a web is pivotably articulated about a third pivot axis on the actuating lever at a distance from a pivot bearing, via which the actuating lever is articulated to the chassis about the first pivot axis, and the web is coupled to the sweeping tool holder, wherein the web effects the coupling between the actuating lever and the sweeping tool holder, and that a coupling device for coupling the sweeping tool holder to the web is arranged and designed such that the sweeping tool holder and the web are pivotable relative to one another and that the sweeping tool holder and the web are displaceable relative to one another with a movement component transverse to a corresponding pivot axis.

By pivoting the sweeping tool holder relative to the web, in particular about a pivot axis parallel to the first pivot axis, a force can be transmitted from the actuating lever to the sweeping tool holder in order to position it accordingly. A position of the sweeping tool holder on a base is in turn transmitted via the web to the actuating lever and the corresponding pivot position of the actuating lever characterizes a height of the sweeping tool, whereby this height is particularly dependent on wear.

The additional translational movement component transverse to the corresponding swivel axis allows the web to be moved when a distance position is released. This allows the machining position to be reached starting from the distance position.

A space-saving design is possible because the corresponding swivel range in which the sweeping tool holder must be able to swivel can be made relatively small.

In particular, the coupling device comprises or is a rotary-sliding bearing. A rotary-sliding bearing enables a pivotable as well as movable coupling between the web and the sweeping tool holder.

In particular, the coupling device comprises a recess, in particular in the form of an elongated hole, and an engagement element on the recess, wherein in particular the recess is arranged on the web and the engagement element is arranged on the sweeping tool holder. This makes it easy to achieve a displacement movement of the web towards the sweeping tool holder at a specific time when the positioning device is operated. The combination of an elongated hole with an engagement element forms a structurally simple embodiment of a rotary-sliding bearing.

It is particularly advantageous if a spring device is coupled to the web and to the sweeping tool holder, the spring force of which strives to increase the distance between a coupling point of the spring device to the web and a coupling point of the spring device to the sweeping tool holder. This means that, particularly when a spacing position is released, the web can be moved due to the force of the spring device in such a way that locking is no longer possible and the locking is safely released from the spacing position. Otherwise, particularly with unworn sweeping tools, there is a risk that the spacing position will be reached again unintentionally after the spacing position has been released.

It is structurally advantageous if the spring device is or includes a tension spring. This makes it easy to ensure that the spring device strives to increase the distance between its corresponding coupling points.

It is advantageous if the spring device is pre-tensioned in the distance position. When the operating lever is then moved out of the distance position, the spring device ensures that the movement is such that the distance position cannot be accidentally locked again.

In particular, when the actuating lever is moved out of the distance position, a spring force of the spring device moves the actuating lever away from the sweeping tool holder in order to ensure safe disengagement from the distance position.

For the same reason, it is advantageous if a spring force of the spring device moves the web relative to the sweeping tool holder when the actuating element moves out of the distance position and in particular moves it in a direction away from the base. This allows the actuating lever to be positioned over the web in such a way that an unintentional re-locking of the distance position is not possible.

It is advantageous if the spring device is coupled to the web at a distance from a pivot point of the web on the actuating lever and the spring device is coupled to the sweeping tool holder at a distance from a pivot bearing of the sweeping tool holder. This makes it easy to achieve the necessary forms of movement on the positioning device for the sweeping tool.

It is also advantageous if, in relation to the surface, a coupling point of the spring device to the sweeping tool holder is located above a coupling point of the spring device to the web. This makes it easy, for example, to move the web away from the surface when the locking of the distance position is released, which prevents the distance position from being accidentally reached again with locking.

In one embodiment, the sweeping tool is a sweeping roller, which in particular has a rotating roller which is parallel to the first pivot axis. Such a sweeping roller is usually positioned at least partially below the chassis. It can also be covered by aprons and the like so that its state of wear cannot be directly recognized. The solution according to the invention allows this sweeping roller to be positioned in the distance position and in the processing position. A wear indicator can be implemented in a simple manner. The positioning can be carried out in a space-saving manner, so that the corresponding floor cleaning machine can be designed compactly.

In a structurally simple embodiment, the sweeping tool holder comprises a swing arm which is mounted on a pivot bearing on the chassis so that it can pivot about the first pivot axis. This makes it easy to maintain the mobility of the sweeping tool in order to position it accordingly in the distance position and in the processing position.

Advantageously, the sweeping tool is arranged at least partially below the chassis and in particular at least partially covered by covers on the sides. The solution according to the invention makes it easy to implement a wear indicator on which the state of wear of the sweeping tool can be displayed.

For example, the floor cleaning machine according to the invention is designed as a ride-on machine and/or as a sweeping-vacuum machine.

Figur 1

eine Seitenansicht eines Ausführungsbeispiels einer erfindungsgemäßen Bodenreinigungsmaschine;

Figur 2

eine Vorderansicht der Bodenreinigungsmaschine gemäß Figur 1;

Figur 3

eine isometrische Ansicht der Bodenreinigungsmaschine gemäß Figur 1;

Figur 4

eine isometrische Teilansicht der Bodenreinigungsmaschine gemäß Figur 1 mit abgenommener Haube (und abgenommener Frontverkleidung);

Figur 5

eine vergrößerte Ansicht des Bereichs A gemäß Figur 4 mit einer Abstandsposition für einen Kehrwerkzeughalter;

Figur 6

die gleiche Ansicht wie Figur 5 nach Lösung einer Verriegelung der Abstandsposition;

Figur 7

die gleiche Ansicht wie Figur 5 in einer Bearbeitungsposition für den Kehrwerkzeughalter bei stark verschlissenem Kehrwerkzeug;

Figur 8

Komponenten eines Fahrgestells mit Aufbauten und einer Teildarstellung einer Positioniereinrichtung in isometrischer Ansicht;

Figur 9

eine Ansicht in der Richtung B gemäß Figur 8;

Figur 10

eine vergrößerte Darstellung des Bereichs C gemäß Figur 9;

Figur 11

eine Ansicht in der Richtung D gemäß Figur 8;

Figur 12

eine Ansicht für die entsprechenden Komponenten gemäß Figur 4 in der Richtung F; und

Figur 13

eine Schnittansicht längs der Linie 13-13 gemäß Figur 12.

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

Figure 1

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

Figure 2

a front view of the floor cleaning machine according to Figure 1 ;

Figure 3

an isometric view of the floor cleaning machine according to Figure 1 ;

Figure 4

an isometric partial view of the floor cleaning machine according to Figure 1 with hood removed (and front panel removed);

Figure 5

an enlarged view of area A according to Figure 4 with a spacing position for a sweeping tool holder;

Figure 6

the same view as Figure 5 after releasing a locking mechanism of the distance position;

Figure 7

the same view as Figure 5 in a processing position for the sweeping tool holder when the sweeping tool is heavily worn;

Figure 8

Components of a chassis with superstructures and a partial representation of a positioning device in isometric view;

Figure 9

a view in direction B according to Figure 8 ;

Figure 10

an enlarged view of area C according to Figure 9 ;

Figure 11

a view in direction D according to Figure 8 ;

Figure 12

a view for the corresponding components according to Figure 4 in the direction F; and

Figure 13

a sectional view along the line 13-13 according to Figure 12 .

An embodiment of a floor cleaning machine, which is shown in the Figures 1 to 13 shown and designated 10 is a sweeper which is designed as a ride-on floor cleaning machine (ride-on sweeper).

The floor cleaning machine 10 comprises a chassis 12, on which a rear wheel device 14 with a right rear wheel 14a and a left rear wheel 14b (relative to a forward direction of travel 15) is arranged.

Furthermore, a steerable front wheel 16 is arranged on the chassis 12.

A column element 20 is located on the chassis 12 in the region of a front end 18. A handlebar device 22 is positioned in this column element 20, which is connected to the front wheel 16.

A steering wheel device 24 is arranged on the handlebar device 22 outside the column element 20.

The floor cleaning machine 10 is self-propelled. The rear wheel device 14 is connected to a drive 26 ( Figure 12 ). This drive 26 is or, in one embodiment, comprises an electric motor. This electric motor is supplied with electrical energy via a rechargeable battery device 28.

The battery device 28 is arranged in a middle region of the floor cleaning machine 10 between the front end 18 and a rear end 30 on a corresponding battery holder 32. The battery holder 32 is connected directly or indirectly to the chassis 12.

It is also possible in principle for the floor cleaning machine 10 to be driven in its travel movement by an internal combustion engine (not shown in the drawings). This internal combustion engine directly drives the travel movement or drives, for example, a generator which generates usable provides electrical power, which is then used by corresponding motors of the floor cleaning machine 10.

In one embodiment, at least one further electric motor is provided for driving one or more sweeping rollers or a fan (see below).

In principle, a hybrid drive of the floor cleaning machine 10 is also possible. In a first operating mode, the combustion engine is operated, which then drives the generator to provide electrical power. In a second operating mode, the combustion engine is not operated and the electrical energy required to operate the floor cleaning machine 10 is taken solely from the battery device 28, which is designed accordingly.

A sweeping roller 38 ( Figure 1 ), which is a main sweeping roller. This sweeping roller 38 is mounted so as to be rotatable about a rotation axis 40, which is parallel to a wheel axis of the rear wheel device 14. When the floor cleaning machine 10 is set up on a flat surface, with the front wheel 16 and the rear wheel device 14 supported on the corresponding surface, the rotation axis is parallel to this flat surface.

The sweeping roller 38 is positioned between the rear wheel assembly 14 and the front wheel 16. It is positioned at least approximately below the battery holder 32.

It is positioned on a sweeping tool holder 39 on an underside of the chassis 12 or positioned in such a way that it protrudes downwards so that it can act on a surface to be cleaned. In particular, a positioning device 41 is provided for the sweeping roller 38, by means of which the sweeping roller 38 can be lifted off a surface to be cleaned and fixed in a distance position, for example in order to carry out a non-processing run. and with which the sweeping roller 38 can be lowered into a processing position on the surface to be processed in order to be able to carry out a sweeping process accordingly.

When the floor cleaning machine 10 stands on a base 42 with the front wheel 16 and the rear wheel device 14, then in the spacing position of the sweeping tool holder 39 the sweeping roller 38 is spaced from the base 42. In the processing position the sweeping roller acts on the base 42.

A further drive motor (not shown in the figures) is arranged on the chassis 12 and is connected directly or indirectly to it. This drive motor is positioned, for example, in front of the battery holder 32 towards the front end 18. The drive motor is an electric motor which is supplied with electrical current by the battery device 28 (or by a generator).

The drive motor is positioned in particular above the sweeping roller 38, directly or indirectly connected to the chassis 12.

The drive motor comprises a shaft to which a torque transmission device is coupled. The torque transmission device is coupled to the sweeping roller 38. Via the torque transmission device, a torque of the drive motor is transmitted to the sweeping roller 38 to drive it in rotation about the axis of rotation 40. The torque transmission device comprises, for example, one or more belt drives.

In one embodiment, it is provided that the torque transmission device has a reduction gear (for example realized via a corresponding belt pulley) so that the rotational speed of the sweeping roller 38 about the rotational axis 40 is lower than the rotational speed of the shaft of the drive motor about a rotational axis.

The axis of rotation of the shaft is in particular aligned parallel to the axis of rotation 40 of the sweeping roller 38.

The floor cleaning machine 10 further comprises one or more side brushes 48. For example, the floor cleaning machine 10 comprises a right side brush 48a and a left side brush 48b, wherein in the Figures 4 , 8 , 9 , 11 and 12 only one side brush 48a is shown.

A side brush 48 is rotated about a respective axis of rotation 50 ( Figure 2 ) driven. The rotation axis 50 is oriented transversely to the rotation axis 40 of the sweeping roller 38. It can be oriented perpendicular to the rotation axis 40 or, for example, oriented at a small acute angle deviating from this perpendicular.

A rotation of a side brush 48 about the respective rotation axis 50 is driven by the drive motor 42 or a separate side brush drive motor 51. For this purpose, a corresponding torque transmission device is provided, which can be partially formed by the torque transmission device.

The front wheel 16 is positioned between the side brushes 48a and 48b with respect to a transverse direction on the chassis 12 (which is perpendicular to a distance direction between the front end 18 and the rear end 30).

Each of the side brushes 48a, 48b is assigned a side brush positioning device 53, via which the respective side brush 48a, 48b can be positioned in the processing position on the base 42 or at a distance from it.

A coupling opening 52 is arranged on the chassis 12, through which dirt and in particular sweepings can be coupled. The side brushes 48 ensure that sweepings are fed to the (main) sweeping roller 38. The sweeping roller 38 throws sweepings at the coupling opening 52 into a channel 54 which is positioned on the chassis 12. The channel 54 leads to a container device 56 for collecting dirt.

In one embodiment, the container device 56 comprises a first container and a second container, which are detachably positioned next to one another on the chassis 12 of the floor cleaning machine 10 in the region of the rear end 30. Sweepings which are conveyed into the container device 56 are divided between the two containers. As a result, a single filled container is lighter than if only a single container is provided.

However, it is also fundamentally possible for the container device 56 to comprise only a single container.

In one embodiment, the floor cleaning machine 10 comprises a housing 58 arranged on the chassis 12 (see, for example, Figure 4 ). This housing 58 has a receiving space 60, which is designed in particular in the form of a slide-in opening. The containers (or a single container) of the container device 56 can be inserted into this, so that the containers or the container can receive sweepings which reach it from the channel 54.

In particular, a fixing device is provided in order to be able to fix containers (or the container) positioned in the receiving space 60 to the chassis 12 or to the housing 58.

In one embodiment, the container(s) include rollers to facilitate debris disposal when the container(s) are removed from the floor cleaning machine 10.

During a sweeping operation, the rotating sweeping roller 38 causes dirt particles to be thrown into the channel 54 at the coupling opening 52 and thus filling the container device 56 with sweepings. The rotating sweeping roller 38 also generates an air flow which supports the coupling of sweepings into the container device 56.

Cover elements 62 (aprons 62) are arranged on the coupling opening 52, which serve to cover a lateral gap between the coupling opening 52 and the substrate 42 on which the floor cleaning machine 10 stands, or to leave only a small gap.

Such a cover element 62 is in particular designed and/or arranged elastically.

Between the corresponding cover elements 62, a sweeping edge element 66 is arranged at the coupling opening 52.

In particular, a left cover element is provided for a left side of the vehicle and a right cover element is provided for a right side of the vehicle.

The floor cleaning machine 10 also has a suction device. The suction device generates a suction flow which acts in the area of the coupling opening 52 to support the coupling of sweepings into the container device 56 and also to bring about a pressure equalization with respect to the air flow generated by the sweeping roller 38.

The suction device comprises a blower. The blower generates a corresponding negative pressure flow for the suction effect. The blower is connected directly or indirectly to the chassis 12.

In one embodiment, the fan is positioned in the area of the drive motor for the fan. It is arranged in front of the battery holder 32 towards the front end 18 of the chassis 12.

The drive motor is arranged and designed in such a way that it also drives one or more impellers of the fan in a rotary motion. A rotation axis for a corresponding impeller is in particular coaxial to the rotation axis.

In this embodiment, the drive motor is a drive motor for both the rotation of the sweeping roller 38 and the rotation of one or more impellers of the blower.

A filter device 70 is positioned in the air path between the suction device and thus between the blower and the container device 56 ( Figure 4 ). The filter device 70 is arranged in a flow path between the channel 54 or the container device 56 and the blower. The negative pressure flow of the suction device flows through it. The filter device 70 prevents coupled dirt particles from reaching the blower.

The filter device 70 is held (detachably) on the floor cleaning machine 10 via a filter holding device 72.

The filter holding device 72 is formed on the housing 58. The housing 58 comprises a filter housing 74 (for example Figure 4 ), with a (cover) wall 76. This wall 76 has a particularly flat upper side 78. This upper side 78 faces away from a lower side of the chassis 12. It is oriented in particular parallel to a distance direction between the front end 18 and the rear end 30 and parallel to a wheel axis of the rear wheel device 14 or the axis of rotation 40. An opening 80 is arranged in the wall 76. The opening 80 points into the channel 54. A boundary 82 of the opening 80 (compare for example Figure 3 ) is formed by the wall 76.

The filter device 70 is designed in particular as a flat pleated filter. It comprises a filter frame which is rectangular in cross section Folds of filter material are held parallel to the filter frame. The filter material is permeable to air and impermeable to dust particles up to a lower threshold size.

The floor cleaning machine 10 comprises a hood 88 ( Figures 1 to 3 , in the Figures 4 to 12 removed). This hood 88 is pivotally connected to the housing 58 via a pivot bearing 90. A pivot axis of this pivot bearing 90 is oriented parallel to a wheel axis of the rear wheel device 14 or parallel to the axis of rotation 40. The hood 88 is supported on the chassis 12 via the pivot bearing 90.

In a closed position of the hood 88, the hood 88 covers the filter holding device 72 with the filter device 70, the battery device 28 and the drive motor from the outside.

In an open position, access is possible to the filter holding device 72 with the filter device 70, to the battery device 28 and also to the drive motor.

Relative to the closed state with the hood 88 closed, the hood 88 can be opened by pivoting in a pivoting direction 94 ( Figure 1 ), which lies towards the rear end 30.

Referring to a view of the floor cleaning machine 10 from the left side and in relation to the forward direction 50, according to the view according to Figure 1 , the pivoting direction 94 for opening the hood 88 is a clockwise direction.

When the hood 88 is opened, it can be fixed in its corresponding open pivot position in order to allow access to the filter device 70.

The hood 88 forms a housing (a casing), which also encloses the housing 58.

A driver's seat 102 is arranged on the hood 88. When the hood is pivoted to open, the driver's seat 102 is pivoted along with it.

A support element 104 is arranged on the chassis 12 at a distance from the column element 20 (in Figure 12 and in Figure 4 This support element 104 is arranged in front of the battery holder 32 at least approximately centrally with respect to the outside of the floor cleaning machine 10. The support element 104 is column-shaped or dome-shaped and serves to support the hood 88 when the hood 88 is closed; the hood 88 has a contact area and the support element 104 has a counter area.

In one embodiment, it is provided that a connection for fluid-effective coupling between a guide device for process air on the hood 88 and one or more channels for process air on the support element 104 is made on the support element 104 when the hood 88 is closed. The channel or channels in the support element 104 are in particular directly fluid-effectively connected to the fan of the suction device.

The hood 88 has a front wall 106 (see for example Figure 3 ) which, when the hood 88 is closed, covers the drive motor, the suction device, the battery device 28, etc. towards the column element 20.

A support area 108 for operator feet is arranged between the front end 18 of the floor cleaning machine 10 and the front wall 106 (when the hood 88 is closed). The column element 20 is positioned at this support area 108 or the column element 20 protrudes upwards above this support area 108. When a driver sits on the driver's seat 102, then he can place his feet on the support area 108 and operate the steering wheel device 24.

The front wall 106 then represents an intermediate area between the driver's seat 102 and the installation area 108.

Foot pedals 110a, 110b are arranged on the installation area 108. For example, one foot pedal 110a and one foot pedal 110b are arranged to the right and left of the column element 20 at a small distance from it. For example, the foot pedal 110a is a travel speed controller including a brake for the travel speed and the foot pedal 110b is an operating pedal for a coarse dirt flap.

Furthermore, a foot pedal 112 is arranged on the installation area 108 and is connected to the side brush positioning device 53. An operator can position the side brush(s) 48 using this foot pedal 112.

In the embodiment shown, the foot pedal 112 is closer to a right side of the vehicle than to a left side of the vehicle. This foot pedal 112 is positioned adjacent to the front wall 106.

In principle, if several side brushes 48a, 48b are present, it is possible for all side brushes 48a, 48b to be positioned together via the side brush positioning device 53 and a single foot pedal 112, or for separate positioning sub-devices to be provided for the side brushes 48a and 48b and thus also for separate foot pedals to be provided.

A foot pedal 114 is also provided, which is coupled to the positioning device 41 for the sweeping tool holder 39 with the sweeping roller 38. The sweeping roller 38 can then be positioned in the processing position or in the spacing position accordingly using this foot pedal 114.

In one embodiment, the foot pedal 114 is arranged opposite the foot pedal 112. The foot pedal 114 is arranged closer to a left side of the vehicle than the foot pedal 112. It is arranged directly adjacent to the front wall 106.

For example, the foot pedals 112 and 114 are positioned at least approximately symmetrically to a center plane of the floor cleaning machine 10, wherein this center plane runs, for example, centrally through the column element 20.

In addition to the column-like support element 104, the hood 88 is supported adjacent to the installation area 108 on the chassis 12 at support points 116, 118. When the floor cleaning machine 10 is installed on the base 42, these support points 116, 118 are closer to the base 42 than a corresponding counter area of the support element 104 for the installation area of the hood 88.

In one embodiment, the support point 116 is located immediately adjacent to the installation area 108 behind the foot pedal 112. The support point 118 is located behind the installation area 108 and directly behind the foot pedal 114.

The foot pedals 112, 114 are arranged such that a driver sitting on the driver's seat 102 can operate them without "changing location", wherein the foot pedals 112, 114 are preferably out of reach for normal driving operation (with operation of the foot pedals 110a, 110b) in order to prevent unintentional operation or to allow comfortable driving operation.

The sweeping tool holder 39 comprises a swing arm 120. This swing arm 120 is pivotally mounted on the chassis 12 via a pivot bearing 122. The pivot bearing 122 defines a first pivot axis 124 (see, for example, in Figures 5 to 7 ), by which the swing arm 120 and thus the sweeping tool holder 39 with the sweeping tool (the sweeping roller 38) relative to the chassis 12 is pivotable. The first pivot axis 124 is oriented for the (main) sweeping roller 38 parallel to a wheel axis of the rear wheel device 14. When the floor cleaning machine 10 stands on a flat base 42, the first pivot axis 124 is parallel to this base.

Starting from the distance position of the sweeping roller 38 to the base 42 (for example in Figure 5 ), the swing arm 120 and thus the sweeping tool 38 can be pivoted in a direction 126 ( Figure 5 ) into the processing position. The pivoting direction 126 is such that the sweeping tool 38 is pivoted towards the base 42.

In the embodiment shown, the pivoting direction 126 is a clockwise direction relative to a left side of the vehicle.

Starting from the processing position ( Figure 7 ), the swing arm 120 and thus the sweeping tool 38 can be pivoted in a pivoting direction 128 in order to reach the distance position. The pivoting direction 128 is a counter direction to the pivoting direction 126.

An actuating lever 130 is attached to the chassis 12 via a pivot bearing 132 (see, for example, Figure 8 ) hinged.

The pivot bearing 132 defines a pivotability of the actuating lever 130 about a second pivot axis 134. This second pivot axis 134 is parallel to the first pivot axis 124.

The pivot bearing 132 is spaced from the pivot bearing 122.

When the floor cleaning machine 10 is properly resting on the base 42, it is located above the pivot bearing 120 with respect to the direction of gravity. It is also closer to the rear end 30 of the floor cleaning machine 10 than the pivot bearing 122.

The operating lever 130 is inserted through an opening 136 in the front wall 106 of the hood 88 (see Figure 2 ).

When the hood 88 is closed, it covers the pivot bearings 132 and 122.

The operating lever 130 is designed as a foot pedal lever with the foot pedal 114. An operator can perform a foot operation of the operating lever 130 (a pivoting movement and a transverse movement, as explained in more detail below).

The actuating lever 130 is coupled (mechanically) to the sweeping tool holder 39 and thereby to the rocker 120 via a web (a strut) 138.

The actuating lever 130 has an end region 140 which faces away from the pivot bearing 122 (see the Figures 5 to 7 ).

This end region 140 is located outside the hood 88 and in front of the front wall 106. The end region 140 is positioned in particular above the installation region 108.

The web 138 is connected via a pivot bearing 142 (compare for example Figures 5 to 7 ) is articulated at this end region. The pivot bearing 142 defines a third pivot axis 144 about which the web 138 is pivotally articulated to the actuating lever 130.

At the end region 140, above the pivot bearing 142, there is a tread element 146 of the foot pedal 114. The web 138 is coupled to the rocker 120 (the sweeping tool holder 39) at a distance from the pivot bearing 142 via a coupling device 148.

The coupling device 148 is designed in particular as a rotary-sliding bearing. In one embodiment, it comprises a recess 152, in particular in the form of an elongated hole on the web 138. This recess 152 is spaced from the pivot bearing 142 and thereby spaced from a first end 154 and an opposite second end of the web 138.

An engagement element 158, in particular in the form of a pin, is arranged on the rocker 120 and is immersed in the recess 152 and is movable in the latter. The coupling device 148 enables both the pivotability of the rocker 120 (the sweeping tool holder 39) about the first pivot axis 124 and a translational displacement of the web 138 relative to the rocker 120 (i.e. a relative displaceability of the engagement element 158 in the recess 152).

The web 138 and the rocker 120 are further coupled to one another via a spring device 160. The spring device has a coupling point 162 on the web 138. This coupling point 162 is located in the region of the second end 156 of the web 138.

The spring device 160 further has a coupling point 164 to the rocker arm 120. This coupling point 164 is spaced from the pivot bearing 122 and is located near the engagement element 158.

The spring device 160 is arranged and designed such that in the distance position of the sweeping tool holder 39 the spring device 160 is pre-tensioned ( Figure 5 ) and strives to enable a relative movement of the web 138 to the rocker 120.

This relative movement can be used when moving the swing arm 120 out of the clearance position to reach the machining position. This is explained in more detail below.

The spring device 160 is or preferably comprises a tension spring 166, which is particularly suspended at the coupling points 162 and 164.

When the tension spring 166 is preloaded, it tends to reduce the distance between the coupling points 162 and 164.

The coupling point 162 of the spring device 160 to the web 138 is located with respect to the base 42, when the floor cleaning machine 10 is properly standing on it, below the coupling point 164 of the spring device 160 to the rocker 120.

It may also be located above the coupling point 164 or at the same height as it.

In one embodiment, the spring device 160 is arranged and designed such that it is positioned in front of the web 138 in the direction of the front end 18, relative to the area of the web 138 with the recess 152.

In particular, the web 138 has a corresponding hook element at the second end 156 to make this possible.

Furthermore, in one embodiment, the spring device 160 is arranged at least approximately at the same height relative to the base 42 as the pivot bearing 122 when the floor cleaning machine 10 is properly positioned on the base 42.

The recess 152, the spring device 160 and the coupling points 162, 164 are in a region 168 ( Figures 1 to 3 ), which is located below the installation area 108. The installation area 108 covers this area 168 upwards.

A guide element 170 is arranged on the chassis 12, on which the actuating lever 130 is guided (for example Figures 4 to 7 ; in the Figures 8 to 11 the guide element 170 is removed).

The guide element 170 is located behind the front wall 106 and is at least partially covered by the hood 88.

The guide element 170 is spaced from the pivot bearing 122 and spaced from the end region 140 of the swing arm 120.

The guide element 170 has a slotted region 172 through which the actuating lever 130 is connected to a region 174 which is located between the end region 140 and the region with which the actuating lever 130 is hinged to the pivot bearing 122.

The slot area 172 forms a continuous opening to allow the actuating lever 130 to pass through.

The slot region 172 includes a first region 176 and a second region 178 adjacent to the first region. The first region 176 and the second region 178 are each slot-shaped.

The first area has an extension length L ₁ (compare Figure 6 ) transverse to the first pivot axis 124.

The second region 178 has a length L ₂ in the same direction, wherein the length L ₂ is greater than the length L ₁ . In particular, the first region 176 and the second region 178 have a common end 180 towards the bottom side 124.

Due to the different lengths of the first region 176 and the second region 178, a step 182 is formed on the slot region 172 at the transition from the first region 176 to the second region 178. An end 184 of the first region 176 opposite the end 180 at the step 182 (compare for example Figure 5 ) forms a stop for the operating lever 130. When the operating lever 130 rests with its area 174 against the stop (end) 184 (compare Figure 5 ), then another Pivoting mobility of the actuating lever 130 upwards in a pivoting direction away from the base 42 (in Figure 5 clockwise) is locked.

When the region 174 of the actuating lever 130 rests against the end 184 of the first region 176 of the slot region 172, the spacing position of the sweeping tool holder 39 with the sweeping tool 38 is reached and this spacing position is locked.

The operating lever 130 is pivotally connected to the chassis 12 via the pivot bearing 132. It also has a transverse mobility (in Figure 5 indicated by an arrow with the reference number 186). The actuating lever 130 is movable in a direction which is parallel to the first pivot axis 124.

This transverse mobility of the actuating lever 130 makes it possible to release the distance position. The actuating lever 130 can thereby be transferred from the first area 176 to the second area 178. It can then be pivoted further upwards (from the base 42) in the second area 178. This makes it possible to reach the processing position ( Figure 7 ).

In Figure 6 an intermediate position is shown in which the actuating lever 130 moves in the second region 178 until the end position according to Figure 7 is reached.

The corresponding functionality is explained in more detail below.

The sweeping roller 38 has a height H ( Figure 1 ). This height H corresponds to the diameter of the sweeping roller 38.

The sweeping roller 38 comprises a bristle holder 188 (see Figure 1 ), on which bristles 190 are located. During a cleaning process in the processing position The bristles of the sweeping roller 38 act with their tip or an area at the tip on the base 42. The height H (and thus the diameter) of the sweeping roller 38 is predetermined by a corresponding bristle length of the bristles 190.

The bristles 190 wear out during sweeping operation; this is reflected in the fact that their length decreases. The height H (and thus the diameter) of the sweeping roller 38 therefore decreases during cleaning operation.

The position of the actuating lever 130 in the second region 178 for the processing position of the sweeping roller 38 is determined by the height H of the sweeping roller 38. If the sweeping roller 38 has a smaller height H, then the region 174 of the actuating lever 130 on the guide element 170 and thus on the second region 178 is further away from the base 42, since the rocker 120 can be pivoted in the pivoting direction 126 by a larger angle towards the base 42.

The pivoting position of the actuating lever 130 on the guide element 170 and thereby the position of the region 174 in the second region 178 (in the processing position) is therefore predetermined by the height H of the sweeping roller 38.

This in turn makes it possible to determine the height H of the sweeping roller 38 from the pivoting position of the actuating lever 130 in the second region 178 and thus to obtain information about the bristle wear.

A wear indicator 192 is assigned to the operating lever 130.

In principle, it is possible for the pivoting position of the actuating lever 130 to be detected in the second area 178 for the processing position and displayed to an operator.

In a structurally simple embodiment, the wear indicator 192 is arranged as a scale on the hood 88 (the housing 88), specifically on a housing area which covers the guide element 170.

Alternatively, it can be provided that the wear indicator 192' is arranged as a scale directly on the guide element 170 if the guide element 170 is visible from the outside (the hood 88 then has, for example, a corresponding recess), so that the wear indicator 192' is visible from the outside.

The sweeping roller 38 is located at least in a large part below the chassis 12 and is also covered laterally by the cover elements 62. An operator of the floor cleaning machine 10 cannot therefore directly see the height H or the bristle wear from the outside. By looking at the wear indicator 192 or 192' when the processing position is provided on the positioning device 41, he can also easily see the degree of bristle wear.

The wear indicator 192 is arranged on an area 194 of the hood 88, which is supported in particular directly on the chassis 12. This allows a relatively accurate wear indicator to be achieved and tolerances are minimized.

If the wear indicator 192' is arranged directly on the guide element 170, which in turn is in particular directly connected to the chassis 12, then small tolerances also result in a corresponding tolerance chain.

The wear indicator 192 or 192' can be a quantitative indicator and/or a qualitative indicator. The quantitative indicator shows in particular the bristle length or a measure of the bristle length. The qualitative indicator shows whether the sweeping roller 38 can still be used for sweeping or not.

The soil tillage machine 10 according to the invention functions as follows:
For example, for a non-cleaning run, the sweeping roller 38 and thus the sweeping roller holder 39 are in the distance position to the base 42 ( Figures 4 , 5 , 8 to 14). The actuating lever 130 is positioned in the first region 176 of the guide element 170 (with its region 174) and rests against the stop 184.

In this distance position, the actuating lever 130 can no longer be pivoted upwards, away from the base 42.

The engagement element 158 on the swing arm 120 rests against an upper end 196 of the recess 152. As a result, the pivoting mobility of the swing arm 120 with the sweeping tool 38 in the pivoting direction 126 is blocked and the distance position is fixed.

The spring device 160 is pre-tensioned; a spring force of the spring device 160 tends to reduce the distance between the coupling point 162 and the coupling point 164 in the spacing position.

Starting from this distance position, an operator can move the sweeping roller 39 into the processing position. To do this, he acts and moves the actuating lever 130 in the direction 186 in such a way that the area 174 is guided from the first area 176 into the second area 178 ( Figure 6 ).

A corresponding arrow 198 for the transverse mobility 186 is arranged on the step element 146 in order to signal to an operator this "releasing option" of the locking of the distance position.

If necessary, the actuating element 130 is also pressed downwards towards the base 42 for the transverse movement in the direction 186 in order to enable release from the stop 184.

The operator thus moves the actuating lever 130 with its area 174 from the first area 176 to the second area 178. The spring device contracts and this causes the web 138 to be displaced upwards, away from the base 42 ( Figure 6 ). This displaceability is made possible precisely by the recess 152 and in particular its design as an elongated hole. As a result, the recess 152 is displaced to a certain extent towards the engagement element 158.

This causes the actuating lever 130 to be moved upwards in the second region 178 and thereby moves over the end 184 ( Figure 6 ).

This also allows the swing arm 120 to rotate downwards (in the pivoting direction 126) until the sweeping roller 38 touches the base 42.

As mentioned above, the angle of rotation depends on the height H of the sweeping roller 38 and thus on the bristle length.

The actuating lever 130 pivots upwards in the second region 178 until the end position of the rocker arm 120 is reached by the sweeping roller 38 resting on the base 42. In Figure 7 then a corresponding end position is shown corresponding to the processing position of the sweeping roller 38, whereby in the embodiment shown there the actuating lever 130 is pivoted close to one end of the second region 178 (facing away from the end 180). This means a low height H or a high level of bristle wear.

The Figure 7 The processing position shown corresponds to a large deflection of the actuating lever 130; this corresponds to a large wear of the sweeping roller 38.

Further wear means a system at the end of the second area 178 facing away from the end 180 and thus lack of functionality of the sweeping roller 38. The wear indicator 192 shows in the Figure 7 shown position that the sweeping roller 38 must be replaced "soon".

If the sweeping roller 38 is less worn, then in the processing position the operating lever 130 is below the Figure 7 shown position in the second area 178.

Sweeping operation of the floor cleaning machine 10 is now possible.

The spring device 160 ensures that disengagement from the distance position according to Figure 5 is also possible when the height H of the sweeping roller 38 is relatively high (no wear is present). If the actuating lever 130 is moved in the transverse direction 186 starting from the distance position, the spring device 160 in cooperation with the recess 152 ensures that the area 174 of the actuating lever 130 is displaced over the step 182, i.e. a safe disengagement is achieved and unintentional engagement during processing is also prevented.

If starting from the processing position ( Figure 7 ) an operator wants to bring the sweeping roller 38 into the distance position, he presses in a direction 200 on the tread element 146 of the actuating lever 130. The actuating lever 130 is then rotated about the second pivot axis 134 in a pivot direction 128 ( Figure 7 ) is pivoted downwards towards the base 42. As a result, the web 138 is displaced downwards and as a result, the rocker arm 120 is pivoted away from the base 42 by a pivoting movement in the direction 128.

If the operating lever 130 with its area 174 has been moved over the step 182, then a transverse movement in a direction 202 ( Figure 7 ) the area 174 of the operating lever 130 is brought into the first area 176. After releasing the operating lever 130 by the The operator can place the area 174 against the end 184 in order to lock the distance position of the sweeping roller 38.

The guide element 170 forms with its slot area 172 a kind of backdrop for the area 174 of the actuating lever 130.

By means of a relatively simple mechanical structure, the processing position of the sweeping roller 38 can be reached or the spacing position can be reached and locked.

In this case, a wear indicator 192 can be formed in a simple manner, by means of which an operator can detect the wear of bristles 190 of the sweeping roller 38 without having to examine the sweeping roller 38 himself.

The position of the area 174 of the actuating lever 130 on the guide element 170 in the processing position of the sweeping roller 38 characterizes the height H of the sweeping roller 38 and thus the bristle wear.

The spring device 160, in particular in cooperation with the recess 152, ensures that the transition from the distance position to the processing position is achieved even for a sweeping roller 38 without bristle wear and that no unintentional locking in the processing position occurs.

A simple, compact design of the floor cleaning machine 10 results from the described design of the positioning device 41. In particular, a movement space of the sweeping tool holder 39 with the rocker 120, which is used to reach the distance position and the processing position, is relatively small, so that the compact design can be realized in a simple manner.

For example, it is also possible in principle to dispense with the recess 152 by designing it as an elongated hole, in which case a larger Movement space is required for pivoting the swing arm 120, and in particular the swing arm 120 must also be able to pivot upwards starting from the distance position.

In the embodiment shown, the distance position of the sweeping tool holder 39 is a maximum pivot position 42 upwards away from the base 42 and thus a limit position.

In this embodiment, no translational displacement is permitted between the web 138 and the rocker 120, but the engagement of the engagement element 158 with the corresponding recess 152 then forms a pure pivot bearing.

The floor cleaning machine according to the invention is designed in particular as a sweeper and preferably as a ride-on sweeper. It is also designed in particular as a sweeper-vacuum machine.

In principle, it is also possible for a side brush 48 to be brought into a processing position and into a distance position from the base 42 via the same positioning mechanism as described with reference to the positioning device 41.

(As a rule, a wear indicator for a side brush is not necessary, since bristle wear is immediately visible (compare Figure 3 ).)

List of reference symbols

10

Floor cleaning machine

12

chassis

14

Rear wheel setup

14a

Right rear wheel

14b

Left rear wheel

15

Forward direction

16

Front wheel

18

Front end

20

Column element

22

Handlebar device

24

Steering wheel device

26

drive

28

Battery setup

30

Rear end

32

Battery holder

38

Roller brush

39

Sweeping tool holder

40

Rotation axis

41

Positioning device

42

Base

48

Side brush

48a

Right side brush

48b

Left side brush

50

Rotation axis

51

Side brush drive motor

52

Coupling mouth

53

Side brush positioning device

54

channel

56

Container equipment

58

Housing

60

Recording room

62

Cover element

66

Sweeping edge element

68

fan

70

Filter device

70'

Filter device

72

Filter holder

74

Filter housing

76

Wall

78

Top

80

opening

82

Limitation

88

hood

90

Swivel bearing

94

Panning direction

102

Driver seat

104

Support element

106

Front wall

108

Installation area

110a

Foot pedal

110b

Foot pedal

112

Foot pedal

114

Foot pedal

116

Support point

118

Support point

120

Swingarm

122

Swivel bearing

124

First swivel axis

126

Panning direction

128

Panning direction

130

Operating lever

132

Swivel bearing

134

Second swivel axis

136

opening

138

web

140

End area

142

Swivel bearing

144

Third swivel axis

146

Tread element

148

Coupling device

152

Recess

154

First end

156

Second End

158

Engagement element

160

Spring device

162

Coupling point

164

Coupling point

166

Tension spring

168

Area

170

Guide element

172

Slot area

174

Area

176

First area

178

Second area

180

End

182

Level

184

End (stop)

186

Lateral mobility

188

Bristle holder

190

Bristles

192

Wear indicator

192'

Wear indicator

194

Area

196

Upper end

198

Arrow

200

Direction

202

Transverse movement

Claims (15)

1. Floor cleaning machine, comprising an undercarriage (12), a sweeping tool holder (39), which is mounted on the undercarriage (12) so as to be pivotable about a first pivot axis (124), a sweeping tool (38), which is seated on the sweeping tool holder (39), and a positioning device (41) by way of which the sweeping tool holder (39) is positionable for a working position of the sweeping tool (38) on a base (42) on which the floor cleaning machine stands, and by way of which the sweeping tool holder (39) is positionable in a distance position of the sweeping tool (38) from the base (42), wherein the positioning device (41) comprises an actuating lever (130), which is articulated on the undercarriage (12) so as to be pivotable about a second pivot axis (134), which is coupled to the sweeping tool holder (39), and by way of which the sweeping tool holder (39) is bringable into the working position and into the distance position, characterized in that in the working position a pivot position of the actuating lever (130) is predetermined by a height (H) of the sweeping tool (38), wherein the height (H) of the sweeping tool (38) is wear-dependent.
2. Floor cleaning machine in accordance with Claim 1, characterized in that the sweeping tool (38) comprises bristles (190) and in that the height (H) of the sweeping tool (38) is determined by a bristle length, wherein bristles (190) shorten when worn.
3. Floor cleaning machine in accordance with Claim 1 or 2, characterized in that the actuating lever (130) has associated therewith a wear indicator (192; 192') on which a wear of the sweeper tool can be read by way of the pivot position of the actuating lever (130), and in particular

   characterized in that the wear indicator (192) is arranged on a housing (88) and, in particular, on a cover (88), and in particular

   characterized in that the wear indicator (192; 192') is arranged at a region which is supported on the undercarriage (12) or is fixedly connected to the undercarriage (12).
4. Floor cleaning machine in accordance with any one of the preceding Claims, characterized by at least one of the following:

   - the actuating lever (130) is arranged and configured such that a pivoting of the actuating lever (130) from the distance position into the working position takes place in a pivoting direction away from the base (42);

   - the actuating lever (130) is arranged and configured such that a pivot angle in the actuating position relative to the distance position increases as the height (H) of the sweeping tool (38) decreases;

   - the actuating lever (130) is a foot pedal lever.
5. Floor cleaning machine in accordance with any one of the preceding Claims, characterized by a guide element (170), which is connected to the undercarriage (12) and on which the actuating lever (130) is guided, and in particular

   characterized in that the actuating lever (130) has a pivotability on the guide element (170) about the first pivot axis (124) and a transverse mobility (186) with a movement component in a direction parallel to the first pivot axis (124), and in particular

   characterized in that the guide element (170) has a slot region (172) through which the actuating lever (130) is passed, and in particular

   characterized in that the slot region (172) comprises a first region (176) for fixing the distance position and a second region (178) for establishing the working position, wherein a transition between the first region (176) and the second region (178) is performable by a transverse movement of the actuating lever (130) with a movement component in a direction (186) parallel to the first pivot axis (124), and in particular

   characterized in that the first region (176) has a stop (184) for the actuating lever (130), which predetermines the distance position and which, in particular, delimits a pivotability of the actuating lever (130) away from the base (42), and in particular

   characterized in that the first region (176) is connected to the second region (178) and/or in that the first region (176) has a length (Li), which is smaller than a corresponding length (L₂) of the second region (178).
6. Floor cleaning machine in accordance with any one of the preceding Claims, characterized in that the first pivot axis (124) and the second pivot axis (134) are at least approximately parallel to one another.
7. Floor cleaning machine in accordance with any one of the preceding Claims, characterized in that a web (138) is articulated on the actuating lever (130) so as to be pivotable about a third pivot axis (144), said web being articulated at a distance from a pivot bearing (122) by way of which the actuating lever (130) is articulated on the undercarriage (12) so as to be pivotable about the first pivot axis (124), and in that the web (138) is coupled to the sweeping tool holder (39), wherein the web (138) creates the coupling between the actuating lever (130) and the sweeping tool holder (39), and in particular

   characterized in that the web (138) is coupled to the sweeping tool holder (39) by way of a rotary sliding bearing, and in particular

   characterized in that the third pivot axis (144) is oriented in parallel to the first pivot axis (124) and/or the second pivot axis (134).
8. Floor cleaning machine in accordance with any one of the preceding Claims, characterized in that a web (138) is articulated on the actuating lever (130) so as to be pivotable about a third pivot axis (144), said web (138) being articulated at a distance from a pivot bearing (132) by way of which the actuating lever (130) is articulated on the undercarriage (12) so as to be pivotable about the first pivot axis (134), in that the web (138) is coupled to the sweeping tool holder (39), wherein the web (138) creates the coupling between the actuating lever (130) and the sweeping tool holder (39), in that a coupling device (148) of the coupling of the sweeping tool holder (39) to the web (138) is arranged and configured such that the sweeping tool holder (39) and the web (138) are pivotable relative to one another and that the sweeping tool holder (39) and the web (138) are displaceable relative to one another with a movement component transverse to a corresponding pivot axis, and in particular

   characterized in that the coupling device (148) is or comprises a rotary sliding bearing, and in particular

   characterized in that the coupling device (148) has a recess (152), in particular in the form of an elongated hole, and an engagement element (158) at the recess (152), wherein, in particular, the recess (152) is arranged on the web (138), and in that the engagement element (158) is arranged on the sweeping tool holder (39).
9. Floor cleaning machine in accordance with either of Claims 7 or 8, characterized in that a spring device (160) is coupled to the web (138) and to the sweeping tool holder (39), the spring force of which seeks to increase a distance between a coupling point (162) of the spring device (160) on the web (138) and a coupling point (164) of the spring device (160) on the sweeping tool holder (39).
10. Floor cleaning machine in accordance with Claim 9, characterized by at least one of the following:

    - the spring device (160) is or comprises a tension spring (166);

    - the spring device (160) is pre-tensioned in the distance position;

    - when the actuating lever (130) is moved out of the distance position, a spring force of the spring device (160) moves the actuating lever (130) away from the sweeping tool holder (39);

    - when the actuating lever (130) is moved out of the distance position, a spring force of the spring device (160) displaces the web (138) relative to the sweeping tool holder (39) and, in particular, displaces it in a direction away from the base (42);

    - the spring device (160) is coupled to the web (138) at a distance from an articulation point of the web (138) on the actuating lever (130) and the spring device (160) is coupled to the sweeping tool holder (39) at a distance from a pivot bearing (122) of the sweeping tool holder (39).
11. Floor cleaning machine in accordance with either of Claims 9 or 10, characterized in that relative to the base (42), a coupling point (164) of the spring device (160) on the sweeping tool holder (39) is located above a coupling point (162) of the spring device (160) on the web (138).
12. Floor cleaning machine in accordance with any one of the preceding Claims, characterized in that the sweeping tool (38) is a sweeping roller and, in particular, has a rotational axis (40), which lies parallel to the first pivot axis (124).
13. Floor cleaning machine in accordance with any one of the preceding Claims, characterized in that the sweeping tool holder (39) comprises a swing arm (120), which is mounted on the undercarriage (12) so as to be pivotable on a pivot bearing (122) about the first pivot axis (124).
14. Floor cleaning machine in accordance with any one of the preceding Claims, characterized in that the sweeping tool (38) is arranged at least with a partial region below the undercarriage (12) and, in particular, is covered laterally at least partially by coverings (62).
15. Floor cleaning machine in accordance with any one of the preceding Claims, characterized by a configuration as a ride-on machine and/or as a sweeper-suction machine.

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