Floor-cleaning machine with blocking device

Abstract

A floor cleaning machine is provided, comprising a floor head (12), at least one cleaning tool (20, 21) which is rotatably arranged on the floor head (12), a holding rod device (14), an articulation device (16) by means of which the holding rod device (14) is movably articulated on the floor head (12), wherein the articulation device (16) is a cardanic articulation device and comprises a first joint (158) by means of which the holding rod device (14) can be pivoted about a first pivot axis (160), and a second joint (162) which is connected to the first joint (158) and by means of which the holding rod device (14) can be pivoted about a second pivot axis (164), wherein the second pivot axis (162) is oriented transversely and in particular perpendicularly to the first pivot axis (160), and a blocking device (202) by means of which the mobility of the holding rod device (14) with respect to the floor head (12) can be blocked, wherein a slide (204) is arranged in a linearly displaceable manner within the articulation device (16), which slide has at least a first position (244) and a second position (246), wherein, in the first position (244) of the slide (204), the mobility of the articulation device (16) in the first pivot axis (160) and the second pivot axis (164) is released and, in the second position (246), the mobility of the articulation device (16) in the first pivot axis (160) and the second pivot axis (164) is blocked, and wherein the slide (204) is connected to a pulling element (256), wherein the slide (204) can be brought from the first position (244) into the second position (246) by pulling on the pulling element (256).

Description

[0001] Floor cleaning machine with locking device

[0002] The invention relates to a floor cleaning machine, comprising a floor head, at least one cleaning tool which is rotatably arranged on the floor head, a holding rod device, a joint device by means of which the holding rod device is movably connected to the floor head, wherein the joint device is a cardanic joint device and comprises a first joint by means of which the holding rod device can be pivoted about a first pivot axis, and a second joint connected to the first joint by means of which the holding rod device can be pivoted about a second pivot axis, wherein the second pivot axis is oriented transversely and in particular perpendicular to the first pivot axis, and a locking device by means of which the mobility of the holding rod device relative to the floor head can be locked.

[0003] DE 10 2021 119 016 A1 discloses a floor cleaning device with a floor unit, a tool which is assigned to the floor unit and which, in an operating state, contacts a floor surface, with a guide part for guiding the floor cleaning device, with a joint arrangement with a first pivot joint for pivoting the guide part relative to the floor unit about a first pivot axis and with a spring element for generating a spring force between the floor unit and the guide part, wherein the first pivot position has a neutral position and the spring element is connected to the floor unit and the guide part in such a way,When pivoting from the neutral position in a first pivoting direction to a deflected position, an upright moment acting on the guide part and resulting from the spring force increases around the first pivot axis in the direction of the neutral position in a first angular range and decreases in a subsequent second angular range. WO 2020 / 234904 A1 discloses a cleaning device for cleaning walkable surfaces.

[0004] JP 63-200731 also discloses a cleaning device.

[0005] DE 10 2005 032 488 A1 discloses a mobile floor cleaning device with a housing containing a cleaning tool, and with a handle holder mounted on the housing, which can be connected to a handle for guiding the sweeper along a floor surface to be cleaned. The handle holder is mounted in the housing so that it can pivot about two pivot axes aligned obliquely or perpendicular to each other and can be locked in a rest position. At least one locking element is assigned to each of the two pivot axes for locking the handle holder, and the locking with respect to both pivot axes can be released by pivoting the handle holder from the rest position about one of the two pivot axes.

[0006] The invention is based on the object of providing a floor cleaning machine of the type mentioned at the outset, in which an operator can easily lock the pivoting ability of the articulated device.

[0007] This object is achieved according to the invention in the floor cleaning machine mentioned at the outset in that a slide is arranged within the articulated device so as to be linearly displaceable, which slide has at least a first position and a second position, wherein in the first position of the slide the mobility of the articulated device in the first pivot axis and the second pivot axis is released, and in the second position the mobility of the articulated device in the first pivot axis and the second pivot axis is blocked, and in that the slide is connected to a pulling element, wherein the slide can be brought from the first position into the second position by pulling on the pulling element. The solution according to the invention provides a locking device which can be implemented in a structurally simple manner. The slide and the pulling element can be arranged in a protected manner within housing elements.

[0008] Only a single axis of movement for linear movement of the slider needs to be provided.

[0009] This, in turn, allows the slider to be easily moved using a pull element. The pull element, in turn, allows the locking device to be remotely controlled.

[0010] This allows an operator to easily lock the articulated device. For example, after locking, the floor cleaning machine can be easily transported or parked, particularly in such a way that the at least one cleaning tool is at a distance from a storage area.

[0011] It is particularly advantageous if the traction element is designed to be linearly flexible, particularly a rope, belt, or chain. The traction element can then be guided along the floor cleaning machine in a defined manner, particularly to implement a remote control function.

[0012] In one embodiment, the tension element is guided away from the slider along the retaining rod device to a drive device. This results in a structurally simple design.

[0013] It is advantageous if at least one of the following is provided: the tension element is guided in a housing device of the holding rod device; the tension element is guided on a side of the holding rod device which is or has an operator side; the tension element is guided on a side of a housing device which is remote from a side of the housing device on which a battery device and / or a tank device is positioned.

[0014] As a result, the locking effect of the locking device can be activated by an operator, in particular by means of a corresponding operating device which is located on the housing device and / or the holding rod device.

[0015] In one embodiment, the length of the tension element is at least 50 cm. This allows the locking device to be activated at a distance from the joint device.

[0016] Conveniently, the tension element is coupled to a drive device that can exert a tensile force on the tension element. It can then be moved via the tensile force of the slides, thus achieving the locking position.

[0017] In one embodiment, the drive device is arranged at a distance from the joint device on the support rod device. This results in space-saving installation on the floor cleaning machine. In particular, the pivotability of the support rod device relative to the floor head is not impeded when the locking position is not present.

[0018] In one embodiment, the drive device is arranged at an upper region of a housing device, with at least one of the following: the upper region facing away from the joint device and / or the base head; the upper region facing a link of the support rod device; the upper region facing a display / operating device; the upper region lying between a proximal end and a distal end of a support rod of the support rod device.

[0019] The drive device can therefore be easily operated by an operator who operates the floor cleaning machine and, in particular, guides it over a floor to be cleaned using the holding rod device.

[0020] For the same reason, it is advantageous if the drive mechanism is located on the operator side of the support rod assembly. This provides easier access for the operator.

[0021] In principle, it is possible for the drive device to be a motor-driven drive device. In a structurally simple embodiment, the drive device has a handle or is coupled to a handle, and manual actuation is provided for generating the pulling force. By actuating the handle, an operator exerts a corresponding force, which is expressed in a pulling force of the pulling element on the slide. The corresponding drive device can then, for example, also be designed such that actuating the handle to exert the pulling force and to reach the second position of the slide also results in automatic locking to the handle, for example by exceeding a dead center (as with a toggle lever mechanism).

[0022] In an embodiment with a simple design, the drive device is assigned a dead center, wherein a locking position is reached when the dead center is exceeded and defines the second position of the slide. This also makes it possible to keep the number of components of the floor cleaning machine for forming the locking device and for defining a locking position to a minimum. In a design-favorable embodiment, at least one pin element is seated on the slide in a translationally fixed manner, which pin element is assigned to the first joint and is guided on a guide device with a defined guide path for the at least one pin element. The at least one pin element makes it possible in particular to lock the pivotability of the first joint about the first pivot axis in a simple manner.Depending on the position of at least one pin element in the guide device, the pivoting movement around the pivot axis is enabled or disabled.

[0023] In one embodiment, the guide device comprises an orbital track with the first pivot axis as the orbital axis, wherein, in the first position of the slide, the at least one pin element is guided along the orbital track. The at least one pin element is then guided on a circular path spaced from the first pivot axis. It can then "follow" the pivoting movement at the first joint about the first pivot axis and does not impede this pivoting.

[0024] Furthermore, it is advantageous if the guide device comprises a linear track that is connected to the orbital track and oriented perpendicular to its pivot axis, and if the slider is in a second position, the at least one pin element is positioned in the linear track. A positive locking connection for the at least one pin element can be achieved in the linear track for directions of movement transverse to the linear alignment of the linear track. This makes it easy to lock a pivoting movement about the first pivot axis.

[0025] Furthermore, it is advantageous if at least one of the following is provided: the at least one pin element can be brought from the orbital track into the linear track by the tension element; the linear track branches off from the orbital track; the linear track branches off from the orbital track between a first end and a second end of the orbital track, wherein a branching point specifies a fixing position of the holding rod device relative to the base head and specifies a pivot angle range of the holding rod device for pivoting about the first pivot axis.

[0026] The pulling element allows the slider and thereby the at least one pin element to be moved in such a way that the latter is immersed in the linear path and thereby the pivoting movement of the holding rod device about the first pivot axis is blocked.

[0027] By branching off the linear track from the orbital track, this locking position can be achieved in a simple manner, in particular if the holding rod device is aligned with the base head in such a way that the at least one pin element can penetrate into the linear track.

[0028] If the linear track branches off from the orbital track between the first end and the second end, the linear track can be accessed from the orbital track. This allows a transition from enabling the pivoting movement around the first pivot axis to locking the pivoting movement around the first pivot axis by pulling the slider. The ends of the orbital track also essentially define a pivot angle range for the pivoting movement around the first pivot axis.

[0029] It is advantageous if the guide device is arranged on a wall element that is pivot-proof with respect to a floor head body of the floor head and, in particular, is seated on a first holder, via which the first joint is fixed to the floor head body. This results in a simple design of the locking device. It results in space-saving integration into the floor cleaning machine. It is particularly advantageous if the guide device has opposing wall parts, with a first pin element positioned on a first wall part and a second pin element positioned on a second wall part. This results in a stable locking position of the locking device.

[0030] It is particularly advantageous if the second joint is assigned an immersion chamber and the slide has an immersion region, wherein in the second position of the slide the immersion region is immersed in the immersion chamber and pivoting of the holding rod device about the second pivot axis is blocked at the second joint. In this way, in a structurally simple manner, pivoting about the second pivot axis can be blocked synchronously with the blocking of pivoting about the first pivot axis. The immersion chamber and the immersion region are arranged in particular within the joint device and are thus protected. Furthermore, the immersion process can be carried out easily by moving the slide via the tension element.

[0031] In particular, in the first position of the slide, the immersion area is immersed out of the immersion chamber. This enables the mobility of the joint device at a second joint with a pivoting capability about the second pivot axis in the first position of the slide.

[0032] In particular, the immersion space and the immersion area are arranged within the joint device and are thus protected from exposure to dirt and the like.

[0033] From a design perspective, it is advantageous if the tension element is guided away from the slide in the immersion chamber. This results in a space-saving design.

[0034] Furthermore, it is advantageous if in the second position of the slider at least one of the following is present: the holding rod device is oriented relative to the floor head such that it is oriented with a longitudinal axis of the holding rod device at an angle of between 80° and 100° to a cleaning installation plane of the floor head for a floor to be cleaned; the holding rod device is not pivoted on the second pivot axis.

[0035] This results in an optimized setup position. It also allows the floor cleaning machine to be transported across a floor in a fixed position using a locking device, for example, like a sack barrow.

[0036] The non-pivoted position of the holding rod device on the second pivot axis means that a basic position is present.

[0037] A design that is advantageous in terms of manufacturing technology is when the slider is arranged and designed in such a way that a linear displacement of the slider via the tension element is only possible when the holding rod device is in a basic position relative to the base head. This then means that, in particular, at least one pin element can be brought from an orbital path into a linear path by displacement of the slider. For this purpose, the joint device on the first joint must be adjusted accordingly to enable this transition. Furthermore, an immersion region of the slider can immerse into an immersion space of the second joint. This, in turn, requires the second joint to be aligned accordingly with the slider. If an operator is responsible for this alignment, a simple structural design results.The operator moves the holding rod device into a corresponding locking position and can then activate the locking device using the pulling element. In one embodiment, at least one sensor is provided, which is connected to a control device for signaling purposes and which directly or indirectly detects a transition of the slide into the second position and / or a position of the slide in the second position. The control device can then be informed that the locking position is present or has been reached. This can be used for further control functions on the floor cleaning machine.

[0038] In particular, upon detection of the second position, the control device performs at least one of the following: switching off a drive motor for the at least one cleaning tool; switching off a blower device that generates a suction flow.

[0039] When the locking device reaches the locking position (due to the second position of the slider), the cleaning process is no longer taking place. The drive motor and / or the blower unit can therefore be switched off. This provides convenient operator guidance and energy-saving access to the floor cleaning machine.

[0040] It is particularly advantageous if the slide is assigned a spring device whose spring force strives to move the slide into the first position, wherein in particular the spring force is opposite to a tensile force of the tensile element. The spring device allows the slide to be automatically moved from the second position into the first position after a lock has been released. The design is simple if the tensile force and the spring force counteract each other. In particular, in order to move the slide from the first position to the second position by means of the tensile element, the spring force of the spring device must be overcome by the tensile force of the tensile element. The second position can be fixed by means of a corresponding lock. When the lock is released, the spring device pulls the slide back into the first position and the joint lock is released.

[0041] In one embodiment, a transport roller device for transporting the floor cleaning machine is arranged on the floor head. This allows the floor cleaning machine to be easily transported outside of cleaning operations. The locking device can be used to secure the holding rod device to the floor head. This then allows for easy transport guided by the holding rod device.

[0042] Furthermore, it is advantageous if a parking device is arranged on the floor head, which can be moved into a parking position and by means of which the floor cleaning machine can be moved into a parking position in the parking position of the parking device. In this parking position, the floor cleaning machine can be parked with the floor head on a support surface, with the at least one cleaning tool being spaced apart from the support surface. This "protects" the at least one cleaning tool. In particular, stress on the cleaning tool and, for example, on the bristles of the cleaning tool in the parking position is prevented. The locking device allows the holding rod device to be fixed for the parking position relative to the floor head.Furthermore, if the holding rod device is fixed to the floor head via the locking device before an operator sets the parking position, the parking position can be easily reached, for example by combining a tilting operation and a back-tilting operation.

[0043] It is advantageous to provide a first cleaning tool and a second cleaning tool, which are driven in particular in counter-rotating directions, with the working surfaces of the cleaning tool being inclined toward a cleaning installation plane of the floor head for a floor to be cleaned. This allows for propulsion to be generated at the floor head. This results in simple operation with high maneuverability and optimized cleaning results.

[0044] In one embodiment, a tank device for cleaning fluid and / or a battery device are arranged on the support rod device. This results in a space-saving design. A low center of gravity for the floor cleaning machine can be achieved, especially if the battery device is positioned below the tank device.

[0045] It is also advantageous if a supply device for cleaning fluid is provided to the at least one cleaning tool and / or to a floor to be cleaned. This allows for a wet cleaning process. Dirt on a floor to be cleaned can be removed more effectively.

[0046] In one embodiment, a blower device for generating a suction flow is arranged on the floor head, and a dirt fluid tank device is detachably mounted on the floor head. This results in a space-optimized design of the floor cleaning machine. Dirt fluid paths on the floor cleaning machine can be designed to be short.

[0047] It is advantageous to have at least one suction bar on the floor head. The suction bar allows for the optimal collection of the suction fluid from the floor to be cleaned, which may contain liquid.

[0048] The support rod device can be easily operated when a driver is seated on it. This allows for high maneuverability of the floor cleaning machine over a floor to be cleaned, which is accessible to an operator. The following description of preferred embodiments, in conjunction with the drawings, serves to explain the invention in more detail. They show:

[0049] Figure 1 is a partial side view of an embodiment of a floor cleaning machine according to the invention with the dirt fluid tank device removed and partially removed components such as a suction bar;

[0050] Figure 2 is a partial view of a floor head of the floor cleaning machine according to Figure 1 with a dirt fluid tank device positioned thereon with partially removed components, showing a suction bar;

[0051] Figure 3 is a partial perspective view of the base head according to Figure 2;

[0052] Figure 4 is a view similar to Figure 1, showing a supply device for cleaning fluid;

[0053] Figure 5 is an enlarged view of the area A according to Figure 1 on a hinge device, wherein components of a holding rod device have been removed, wherein a locking device is in a non-locking position;

[0054] Figure 6 is a plan view in direction B according to Figure 5;

[0055] Figure 7 is a sectional view of the articulation device taken along line 7-7 of Figure 6, with a locking device in a non-locking position;

[0056] Figure 8 is a view similar to Figure 1, with a support rod device in a first pivot position relative to a floor head; Figure 9 is a sectional view of the floor cleaning machine according to Figure 8;

[0057] Figure 10 is a similar view to Figure 8 at a different swivel angle;

[0058] Figure 11 shows the floor cleaning machine according to Figure 1 in side view, with a locking device in a locking position;

[0059] Figure 12 is a sectional view of the floor cleaning machine according to Figure 11;

[0060] Figure 13 is an enlarged view of the area C according to Figure 11, wherein components of the holding rod device have been removed, and wherein the locking device is in a locking position;

[0061] Figure 14 is a perspective view of the area C according to Figure 11 with components of the holding rod device removed;

[0062] Figure 15 is a sectional view of the articulation device corresponding to the sectional view 7-7 of Figure 6 when the locking device is in its locking position; and

[0063] Figure 16 is a bottom view of the base head according to Figure 2.

[0064] An embodiment of a floor cleaning machine according to the invention, which is shown in Figure 1 in a partial view (without the dirty fluid tank device) and designated by 10, and is shown in further partial views in the other figures, is used in particular for cleaning hard floors. It comprises a floor head 12 and a holding rod device 14. The holding rod device 14 is movably and in particular pivotably connected to the floor head 12 via a joint device 16. At least one cleaning tool is arranged on the floor head 12. In the embodiment shown, a first cleaning tool 20 and a second cleaning tool 21 (see Figures 3 and 16) are rotatably arranged on a floor head body 18 (tool deck).

[0065] The support rod device 14 serves to guide the floor cleaning machine 10 across a floor 22, both during a cleaning operation (see Figure 2) and during a transport operation of the floor cleaning machine 10 or a cleaning function by a standing operator (Figure 1). Using the support rod device 14, the floor cleaning machine 10 can be maneuvered across the floor 22 and also pushed or pulled. The support rod device 14 has an operator side 24, which faces an operator standing behind the floor cleaning machine 10 (who holds the support rod device 14). Accordingly, the floor head 12 has an operator side 26, which also faces the operator during proper operation of the floor cleaning machine 10.

[0066] The floor head body 18 has a bottom side 28 and a top side 30 opposite the bottom side 28. During cleaning operation (or transport operation according to Figure 1), the bottom side 28 faces the floor 22.

[0067] The floor head 12 is assigned a cleaning installation plane 32, which is defined by elements of the floor cleaning machine 10, on which the floor head 12 is supported on the floor 22 during a cleaning operation.

[0068] The cleaning installation plane 32 is defined by a respective effective surface 34 of the cleaning tools 20, 21. Furthermore, the cleaning installation plane 32 is defined by support wheels 36, 38, which, during cleaning operation of the floor cleaning machine 10, roll into contact with the floor 22 and thereby have a supporting function for the floor cleaning machine 10 on the floor 22. (The weight of the floor cleaning machine rests on them.

[0069] 10 as well as on the cleaning tools 20, 21.)

[0070] In one embodiment, a first steering roller 40 is provided as the support wheel 36 and a second steering roller 42 is provided as the support wheel 38.

[0071] If the floor 22 to be cleaned is flat and the floor head 12 is supported on it via the cleaning installation plane 32, then the cleaning installation plane 32 essentially coincides with a floor plane.

[0072] The base head body 18 has a front end 44. It has a rear end 46 facing away from the front end.

[0073] The floor head body 18 has a longitudinal axis 48 extending between the front end 44 and the rear end 46. The cleaning installation plane 32 is parallel to this longitudinal axis 48. A forward travel direction 50 of the floor head 12 during a cleaning operation (Figure 2) is parallel to this longitudinal axis 48 or runs in a direction from the rear end 46 to the front side 44.

[0074] The operator side 26 of the base head 12 is located at the rear end 46.

[0075] In principle, it is possible that a rear end of the floor head 12 does not coincide with the rear end 46 of the floor head body 18 because, for example, a corresponding device is arranged on the floor head body 18 on the operator side 26, which then forms the rear end 46.

[0076] The floor head body 18 further has a first lateral side end 54 and an opposite second lateral side end 56. Between the first lateral side end 54 and the second lateral side end 56 lies a transverse axis 58 of the floor head body 18, which is transverse and in particular perpendicular to the longitudinal axis 48. The transverse axis 58 is parallel to the cleaning installation plane 32. The floor head 12 further has a vertical axis 60. This vertical axis 60 is perpendicular to the cleaning installation plane 32 and perpendicular to the longitudinal axis 48 and perpendicular to the transverse axis 58.

[0077] The first steering roller 40 is arranged on the floor head body 18 in the region of the rear end 46. The second steering roller 42 is also arranged in the region of the rear end 46. The first steering roller 40 and the second steering roller 42 are spaced apart from one another in a spacing direction parallel to the transverse axis 58.

[0078] The floor head 12 can be assigned a center plane 59, which is located centrally between the first lateral side end 54 and the second lateral side end 56 and is perpendicular to the cleaning installation plane 32. The center plane 59 divides the floor head 12 into two sides. The first swivel caster 40 is located on one side of the center plane 59, and the second swivel caster 42 is located on the other side of the center plane 59.

[0079] The first steering roller 40 and the second steering roller 42 have a roller axis which is parallel to the cleaning installation plane 32.

[0080] When the floor head 12 is in the forward travel direction 50, the roller axes of the first steering roller 40 and the second steering roller 42 are coaxial with each other and parallel to the transverse axis 58 and perpendicular to the forward travel direction 50.

[0081] The first swivel caster 40 is pivotable about a first pivot axis 62. The second swivel caster 42 is pivotable about a second pivot axis 64 ("steering axis") (Figure 2). The first pivot axis 62 is perpendicular to the roller axis of the first swivel caster 40. The second pivot axis 64 is perpendicular to the roller axis of the second swivel caster 42. The first pivot axis 62 and the second pivot axis 64 are transverse and, in particular, perpendicular to the cleaning installation plane 32. The first pivot axis 62 and the second pivot axis 64 are oriented at least approximately parallel to one another.

[0082] In the bottom view according to Figure 16, the first pivot axis 62 and the second pivot axis 64 are perpendicular to the plane of the drawing.

[0083] The first swivel caster 40 is rotatable about the first pivot axis 62, and the second swivel caster 42 is rotatable about the second pivot axis 64. Designing the support wheels 36, 38 as swivel casters with steerability (with an additional axis of movement with the pivot axis 62 or 64) results in improved maneuverability of the floor cleaning machine 10 during a cleaning process on the floor 22 to be cleaned.

[0084] A first disk holder 66, which holds the first cleaning tool 20, and a second disk holder 68, which holds the second cleaning tool 21 (Figure 4) are mounted on the floor head body 18 (Figure 4). The first disk holder 66 is mounted on the floor head body 18 for rotation about a first axis of rotation 70. The second disk holder 68 is mounted on the floor head body 18 for rotation about a second axis of rotation 72. The first axis of rotation 70 and the second axis of rotation 72 are oriented transversely to the cleaning installation plane 32. In one embodiment, they are oriented perpendicular to the cleaning installation plane 32.

[0085] In one embodiment, the first rotational axis 70 and the second rotational axis 72 are parallel to each other. In principle, they can also form a small, acute angle to each other.

[0086] The first cleaning tool 20 is held in a rotationally fixed manner on the first disc holder 66, and the second cleaning tool 21 is held in a rotationally fixed manner on the second disc holder 68, for example, via a bayonet connection. It is intended that the first cleaning tool 20 and the second cleaning tool 21 rotate in opposite directions to each other during a cleaning operation of the floor cleaning machine 10.

[0087] A drive motor 74 is arranged on the floor head body 18 and in particular a single drive motor 74 is positioned for driving both the first cleaning tool 20 and the second cleaning tool 21.

[0088] In one embodiment, this drive motor 74 is arranged vertically with a motor axis which is oriented transversely and in particular perpendicularly to the cleaning installation plane 32.

[0089] A torque transmission device transmits the torque of the drive motor 74 to the first disk holder 66 and the second disk holder 68. The torque transmission device is positioned on the floor head body 18, in particular in a gear housing (not visible in the drawings).

[0090] In one embodiment, the first cleaning tool 20 and the second cleaning tool 21 are each inclined relative to the cleaning installation plane 32 with respect to their effective surface 34. A typical angle for this inclination is in the range between 1° and 10°, and in particular between 2° and 6°. This allows propulsion to be generated, with the inclination being such that the propulsion acts in the forward direction of travel 50.

[0091] The inclination of the cleaning tools 20, 21 can be achieved, for example, by appropriate arrangement of the disc holders 66, 68.

[0092] In an alternative embodiment, the respective cleaning tool 20, 21 is mounted on the associated disk holder 66, 68 with axial and radial play, and a pressure element is positioned to effect an inclination. In this embodiment, in particular, the respective cleaning tool 20, 21 performs a type of precessional movement during rotation, in which a corresponding rotation axis of the cleaning tool 20, 21 revolves on an (imaginary) conical surface, wherein the respective rotation axis 70, 72 is a conical axis of the conical surface, and a conical angle of the conical surface specifies the angle of inclination to the cleaning installation plane 32.

[0093] Relative to the center plane 60, the first cleaning tool 20 is located on one side of the base head body 18 relative to this center plane 59 and the second cleaning tool 21 is located on the other side relative to this center plane 59 (see Figure 16).

[0094] In particular, the cleaning tools 20, 21 are arranged on the base head 12 such that they reach up to the front end 44 or even slightly protrude therefrom, and advantageously also reach up to the first lateral side 54 or second lateral side 56 or even slightly extend beyond them. This enables cleaning close to the edge.

[0095] The first and second cleaning tools 20, 21 each have a holder 76 (see Figure 3), on which an effective area 78 for the floor 22 is defined. The cleaning tools 20, 21 are fixed to the respective disc holder 66, 68 by the holder 76. The holder 76 is, for example, a circular disc.

[0096] The active area 78 acts mechanically on the floor 22 during a cleaning process. It encompasses the active surface 34. In one embodiment, the cleaning tools 20, 21 are designed as grinding discs, and the active area is formed by bristle bundles 80. It is also possible, for example, for the active area 78 to be formed by textile material, or for the active area to comprise bristle bundles and textile material. When the active area 78 is formed from bristle bundles 80, the floor head body 18 is a brush deck.

[0097] The cleaning tools 20, 21 are arranged on the underside 28 of the floor head body 18 and are thus located between the underside 28 and the cleaning installation plane 32. The drive motor 74 and also the torque transmission device are arranged on the upper side 30 of the floor head body 18.

[0098] Furthermore, a suction bar 82 (not shown in Figures 1 and 3) is located on the base head body 18, in particular on the underside 28 of the base head body 18. The suction bar 82 extends in particular between the first lateral side 54 and the second lateral side 56.

[0099] The suction bar 82 comprises a contact area 84 on the floor 22 to be cleaned. The contact area 84 is made, in particular, of an elastic material. The contact area 84 surrounds a space 86.

[0100] The contact area 84 is provided with recesses, in particular towards the cleaning tools 20, 21, so that dirty fluid can reach the space 86 at the bottom 22.

[0101] The suction bar 82 comprises a connection 88 connected to the chamber 86, via which the chamber 86 (and thus the suction bar 82) is fluidly connected to a blower device 90 (indicated in Figure 1). The blower device 90 is located in particular on the floor head body 18 and on its upper side 30 in the region of the rear end 46 and in the region of the second lateral side 56. The blower device 90 generates a suction flow during the cleaning operation of the floor cleaning machine 10. The suction flow acts on the chamber 86, and a dirty liquid can be sucked from the floor 22. The correspondingly sucked-off dirty fluid is coupled into a dirty fluid tank device 92 (see Figure 2), which is removably located on the upper side 30 of the floor head body 18. A contaminated fluid is defined as a flowable, contaminated medium, particularly one that contains a liquid. In principle, the contaminated fluid can also be dry.

[0102] Rollers 94 are assigned to the suction bar 82, which are located particularly in the area of ​​the lateral side ends 54, 56. The rollers 94 (additionally) support the suction bar 82 on the floor 22 to be cleaned.

[0103] In one embodiment, the suction bar 82 is positioned between the cleaning tools 20, 21 and the support wheels 36, 38 (the casters 40, 42) relative to the longitudinal axis 48. During a cleaning process on a floor 22 to be cleaned, the casters 40, 42 are thus located outside a "wet area," and when the floor head 12 moves in the forward direction 50 over a specific area of ​​the floor 22, the casters 40, 42 enter an area that has already been cleaned and vacuumed. This minimizes the exposure of the casters 40, 42 to dirt and liquid.

[0104] In one embodiment (see Figure 16), the floor head body 18 is convex or angled at the first lateral side end 54 and the second lateral side end 56, respectively. The floor head body 18 has its greatest width in a region where the suction bar 82 ends. From the front end 44 to this region, the width of the floor head body 18 increases in a direction parallel to the transverse axis 58. From this region to the rear end 46, the width decreases.

[0105] In particular, it is provided that a width of the dirty fluid tank device 92, which is positioned on the upper side 30 of the floor head body 18, is smaller, at least in some areas, than the corresponding width of the floor head body 18. As a result, the floor head body 18 has an edge region 96, particularly above the cleaning tools 20, 21, at which the dirty fluid tank device 92 is set back relative to the respective lateral side end 54, 56. This results in improved accessibility.

[0106] A transport roller device 98 is located on the base head body 18 in the region of the rear end 46. The transport roller device 98 comprises a first transport roller 100 (see Figure 16) and a second transport roller 102.

[0107] The first transport roller 100 and the second transport roller 102 are spaced apart from each other in the transverse axis 58.

[0108] The first transport roller 100 and the second transport roller 102 have a common roller axis 104 about which they are rotatable. The roller axis 104 is parallel to the cleaning installation plane 32. It is parallel to the transverse axis 58. It is transverse and in particular perpendicular to the longitudinal axis 48 or the forward travel direction 50. It is transverse to the rotation axes 70, 72. In one embodiment, it is perpendicular to the rotation axes 70, 72.

[0109] The transport roller assembly 98 is positioned in front of an end region of the floor head body 18 on the operator side 26. The steering rollers 40, 42 are positioned on the underside 28 of the floor head 12. During cleaning operation, they are located between the floor 22 and the underside 28 of the floor head body 18. The transport rollers 100, 102 are positioned adjacent to the floor head body 18.

[0110] During cleaning operation, the transport rollers 100, 102 are inactive and spaced apart from the cleaning installation level 32 (see Figure 2). They have no function during cleaning operation.

[0111] The transport rollers 100 and 102 are located on different sides relative to the center plane 60. They face the operator side 26. By tilting the floor cleaning machine 10 as a whole, the transport rollers 100, 102 can be brought into contact with the floor 22 as a support surface, whereby the cleaning tools 20, 21 are lifted from the floor 22.

[0112] The floor cleaning machine 10 can be further tilted at the floor head 12 via the transport roller device 98, with the floor cleaning machine 10 then being supported on the floor 22 by the transport roller device 98. In this sense, the transport roller device 98 forms a tilting device, which enables the floor head 12 to be supported on the floor 22 during a tilting process.

[0113] In particular, it is provided that in an initial stage of the tilting movement, in which the transport rollers 100, 102 are not yet in contact with the floor 22, the floor head 12 is supported on the floor 22 via the steering rollers 40, 42. These then form the tilting device in this initial stage of the tilting movement. Overall, the tilting device 106 is thus formed by the steering rollers 40, 42 and the transport roller device 98.

[0114] If the floor cleaning machine 10 and thus the floor head 12 have been tilted on the floor 22 to such an extent that, apart from the transport rollers 100, 102, no further elements of the floor head 12 touch the floor 22, then the floor cleaning machine 10 can be easily moved on the floor via the transport roller device 98 during a transport process, whereby no cleaning takes place due to the raised cleaning tools 20, 21.

[0115] The floor cleaning machine 10 can then be moved, in particular in the manner of a sack truck, via the transport roller device 98 on the floor 22. It is particularly provided that the mobility of the support rod device 14 relative to the floor head 12 can be locked to the floor head 12 by a locking device, as explained in more detail below. If a transport journey is planned, an operator locks the support rod device 14 relative to the floor head 12 so that the support rod device 14 can no longer move relative to the floor head 12. He can then tilt the floor cleaning machine 10 as a whole backward (toward the operator) until the transport roller device 98 touches the floor 22. During further tilting, the floor cleaning machine 10 is supported on the floor 22 by the transport roller device 98, as mentioned above.

[0116] In one embodiment, the first steering roller 40 and the second steering roller 42 are arranged between the first transport roller 100 and the second transport roller 102 (see Figure 16). In one embodiment, the first steering roller 40 and the second steering roller 42 are arranged on the same holder on which the transport roller device 98 is also located. This holder is part of the floor head body 18 or is fixed to the floor head body 18.

[0117] A parking device, designated as a whole by 114 (Figure 16), is provided. The parking device 114 is inactive during a cleaning process of the floor 22 (Figure 2). The parking device 114 can be moved into a parking position, which in turn allows the floor cleaning machine 10 with its floor head 12 to be moved into a parking position in which the floor cleaning machine 10 can be parked on a storage surface via the floor head 12, and in which the cleaning tools 20, 21 are spaced from the storage surface and are therefore not subjected to mechanical stress.

[0118] The parking device 114 is arranged on the ground head body 18 and, in particular, on the underside 28 of the ground head body 18 (Figure 16). The parking device 114 comprises a roller 118. The roller 118 is arranged on a holder 120. The holder 120 is articulated to the ground head body 18 and, in particular, to its underside 28 via a first pivot bearing 122.

[0119] The first pivot bearing 122 has a first pivot axis 124 (see Figure 16). The first pivot axis 124 is parallel to the cleaning installation plane 32. It is transverse and in particular perpendicular to the forward travel direction 50. It is transverse and in particular perpendicular to the transverse axis 58. It is parallel to the longitudinal axis 58. It is oriented transversely to the rotation axes 70, 72.

[0120] The roller 118 has a roller axis 126. This roller axis 126 is parallel to the first pivot axis 124.

[0121] The roller axis 126 is in particular parallel to the roller axis 104 of the transport roller device 98.

[0122] The first pivot bearing 122 and thus also the roller 118 are mounted in the region of the front end 44 of the floor head body 18 on the underside 28 of the floor head body 18. It is located on the center plane 59. It is thus positioned between the first cleaning tool 20 and the second cleaning tool 21 with respect to the transverse axis 58 (see Figure 16).

[0123] A spring device 128 is assigned to the first pivot bearing 122. The spring force of the spring device 128 is such that it tends to push the holder 120 with the roller 118 away from the underside 28 in the direction of the cleaning installation plane 32.

[0124] During a cleaning operation of the floor cleaning machine 10, in which the floor head 12 is positioned on the floor 22 via the cleaning installation plane 32 (see Figure 2), the roller 118 rests on the cleaning installation plane 32. It is pressed against the floor 22 by the spring device 128. In one embodiment, it is provided that the roller 118 itself does not have a supporting function for the floor head 12 on the floor 22 during a cleaning operation, i.e., it does not perform any "weight support" on the floor 22. During a cleaning operation, the roller 118 runs, so to speak, freely on the floor 22 and rolls along it around the roller axis 126. Due to the spring device 128, the roller 118 and its holder 120 are, so to speak, floatingly mounted relative to the first pivot axis 124.

[0125] When the floor head 12 is lifted from the floor 22, ie when the cleaning installation level 32 is lifted from the floor 22, the floor 22 is no longer present as a stop for the spring force of the spring device 128 and the spring force of the spring device 118 brings the holder 120 with the roller 118 into the parking position.

[0126] The parking device 114 further comprises a support leg device 130. The support leg device 130 is pivotally mounted on the base head body 18 via a second pivot bearing 132, thereby being arranged on its underside 28. A second pivot axis 134 is parallel to the first pivot axis 124. The second pivot bearing 132 is spaced apart from the first pivot bearing 122.

[0127] In one embodiment, the support foot device 130 is positioned on the floor head body 18 between the cleaning tools 20, 21 and the suction bar 82 relative to the longitudinal axis 48.

[0128] In one embodiment, the second pivot bearing 132 is formed by spaced-apart holders 136a, 136b, on which a shaft 138 is pivotally mounted about the second pivot axis 134 (see Figure 16).

[0129] The support leg assembly 130 comprises at least one support leg 140. In one embodiment, it comprises a first support leg 140a and a spaced-apart support leg 140b. The support legs 140a, 140b are rotationally fixedly connected to the shaft 138. They are pivotable about the second pivot axis 134 via the pivotability of the shaft 138.

[0130] In the parking position, the support feet 140a, 140b are pivoted relative to the floor head body 18 in such a way that the floor head 12 can be supported thereon with the cleaning tools 20, 21 spaced from the corresponding storage surface.

[0131] The support feet 140a, 140b are positioned on the underside 28 of the floor head body 18 or lie between the underside 18 and the cleaning installation level 32. They are each positioned between the cleaning tools 20, 21 and the suction bar 82.

[0132] In one embodiment, the first support foot 140a is associated with the first cleaning tool 20, and the second support foot 140b is associated with the second cleaning tool 21. The support foot 140a is located on one side of the floor head body 18 relative to the center plane 60, and the support foot 140b is located on the other side.

[0133] The parking device 114 further comprises a coupling device 142, which mechanically couples the roller 118, and in particular the holder 120, to the support leg device 130. This allows a movement at the first pivot bearing 122, which moves the roller 118 into its parking position, to be transmitted to the support leg device 130, and the support legs 140 can thereby be moved into their parking position, in particular driven by the spring device.

[0134] The coupling device 142 is positioned, in particular, between the first cleaning tool 20 and the second cleaning tool 21 on the underside 28 of the floor head body 18 and thus positioned at the center plane 60. In one embodiment, the coupling device 142 is formed by a rod 144. This rod 144 is articulated to the holder 120 via a first pivot joint 146. The first pivot joint 146 has a first axis of rotation that is parallel to the first pivot axis 124.

[0135] The first axis of rotation lies above the roller axis 126 with respect to the height axis 52.

[0136] A bridge 150 is hinged to the rod 144 at an end opposite the end at which the first pivot joint 146 is located, via a second pivot joint 152. The second pivot joint 152 has a second pivot axis that is parallel to the second pivot axis 134 (and parallel to the first pivot axis 124).

[0137] The bridge 150 is connected to the shaft 138 of the support foot device 130 in a rotationally fixed manner.

[0138] The parking device 114 is designed as a toggle lever mechanism, in which the holder 120 is pivotally mounted on the floor head body 18 (via the first pivot bearing 122) about the first pivot axis 124. The rod 144 is mounted on the holder 120 (with the first pivot joint 146) so as to be rotatable about the first rotation axis.

[0139] The bridge 150, which is connected to the shaft 138 in a rotationally fixed manner, is pivotally connected to the rod 144 via the second pivot bearing 152 with the second axis of rotation at a distance from the first pivot joint 146.

[0140] The shaft 138, in turn, is connected to the base head body 18 via the second pivot bearing 132 so as to be pivotable about the second pivot axis 134.

[0141] When the roller 118 moves into the parking position, which is driven by the spring device 128, the rod 144 undergoes a translational movement with rotation about the first axis of rotation 148. This is transmitted to the shaft 138 via the bridge 150. This leads to a rotation of the shaft 138 about the second pivot axis 134, which brings the support feet 140 into the parking position.

[0142] The parking device 114 defines a parking installation plane in the parking position. The parking installation plane is formed by the corresponding contact surfaces of the roller 118 and the support feet 140a, 140b.

[0143] In the parking position of the parking device 114, the floor head 12 can be placed on a storage surface (such as a floor 22), wherein, in the case of a level storage surface, the parking installation plane coincides with a plane of the storage surface.

[0144] If the floor head 12 is positioned above the parking installation level on a storage area, then the cleaning tool 20 and the cleaning tool 21 are spaced apart from the parking installation level and thus from the storage area.

[0145] The parking setup level is only defined in the parking position.

[0146] In one embodiment, the support rod assembly 14 is gimbal-mounted to the ground head body 18 by the joint assembly 16. The joint assembly 16 includes a first joint 158 ​​with a first pivot axis 160. The first joint 158 ​​is connected directly or via a corresponding first holder to the ground head body 18 at its upper side 30.

[0147] A second joint 162 with a second pivot axis 164 is located directly or via a second holder 161 on the first joint 158 ​​of the joint device 16. The second pivot axis 164 is oriented transversely and, in particular, perpendicularly to the first pivot axis 160. The first pivot axis 160 is parallel to the cleaning installation plane 32. The first pivot axis 160 can be used to vary the distance between the operator side 26 and the cleaning installation plane 32, and thus to the floor 22.

[0148] In conjunction with the second joint 162, this results in high maneuverability.

[0149] A support rod 166 of the support rod device 14 is hinged to the joint device 16. This support rod 166 thus forms a kind of backbone for the floor cleaning machine 10.

[0150] A housing device 168 is located on the support rod 166. The housing device 168 accommodates a battery device 170 (Figure 7).

[0151] A removable tank device 172 for cleaning fluid is also located on the housing device 168. The cleaning fluid is, in particular, pure water, which may optionally contain a surfactant cleaning agent.

[0152] In one embodiment, the battery device 170 and the tank device 172 are located on the same side of the support rod device 14, which is facing away from the operator side 24.

[0153] A handlebar 174 is arranged at a proximal end of the support rod 166. This handlebar can be grasped by an operator with both hands.

[0154] In particular, a display / operating device 176 is arranged in the area of ​​the handlebar 174.

[0155] In one embodiment, the support rod 166 is hinged distally to the articulation device 16, and the housing device 168 is held on the support rod 166, functioning as a "backbone." In an alternative embodiment, a housing is hinged to the articulation device 16, and a corresponding support rod with a link is held on the housing.

[0156] The floor cleaning machine 10 comprises a supply device 178 (see Figure 4) for cleaning liquid, via which cleaning liquid can be supplied from the tank device 172 to the floor head 12 and in particular to the cleaning tools 20, 21 in order to enable wet cleaning of the floor 22.

[0157] In one embodiment, cleaning fluid is supplied from the tank device for cleaning fluid to the base head 12 by gravity. In particular, the supply is controlled by a solenoid valve.

[0158] In an alternative embodiment, a pump is provided for supplying cleaning fluid from the tank device 172 to the base head 12.

[0159] An embodiment of a locking device 202 (in particular Figures 5 to 7 and 13 to 15) comprises a slider 204 (see, for example, Figure 7), which is arranged within the joint device 16.

[0160] In one embodiment, the second holder 161 has an interior space 206. Within the interior space 206, the slider 204 is guided on a guide 208 for linear displacement.

[0161] The guide 208, for example, is a sliding guide.

[0162] A guide direction 210 is oriented perpendicular to the first pivot axis 160. It is also oriented perpendicular to the second pivot axis 164. The second holder 161 is seated on the first joint 158 ​​and is thus pivotable about the first pivot axis 160 relative to the base head 12. With the second holder 161, the slide 204 (outside of a locked position) is pivotable about the first pivot axis 160 relative to the base head 12.

[0163] The slider 204 is arranged such that it cannot be pivoted with the second joint 162 about the second pivot axis 164.

[0164] The second holder 161 forms a housing for the slide 204 with the interior 206.

[0165] A first pin element 212 and an opposite second pin element 214 (see Figure 14) are mounted on the slide 204 in a translationally fixed manner. The first pin element 212 and the second pin element 214 protrude from the slide 204 transversely to the guide direction 210.

[0166] The second holder 168 as a housing has a slot-shaped opening 216 assigned to the respective pin element 212, 214 (Figure 4), through which the respective pin element 212, 214 is inserted and is positioned outside the second holder 161 as a housing.

[0167] The opening 216 is designed such that, with the linear displacement of the slide 204 on the guide 208, a displacement of the pin elements 212, 214 relative to the second holder 161 is possible.

[0168] A wall element 218 (see, for example, Figure 14) is located on the first holder 159 or is rigidly connected to it (or directly connected to the base head body 18). A guide device 220 for the pin elements 212, 214 is formed on the wall element 218.

[0169] In one embodiment, the wall element 218 comprises opposing wall parts 222, 224. These are spaced apart from one another in a direction parallel to the first pivot axis 160. The guide device 220 is formed by a first partial track 226, which sits on the wall part 222, and by a second partial track 228, which sits on the wall part 224. The first partial track 226 serves to guide the first pin element 212. The second partial track 228 serves to guide the second pin element 214. The first partial track 226 and the second partial track 228 are aligned with one another.

[0170] The first partial web 226 and the second partial web 228 are each formed by a recess 230 on the associated wall part 222 or 224, wherein the recess 230 is in particular continuous.

[0171] The first partial track 226 and the second partial track 228 are spaced apart from the first pivot axis 160 in a direction transverse to the first pivot axis 160. Relative to the height axis 60, the guide device 220 with its partial tracks 226, 228 is positioned above the base head body 18 and above the first holder 159, respectively.

[0172] The first partial track 226 and the second partial track 228 each have a first region 232 and a second region 234 for guiding the associated pin element 212 or 214.

[0173] The first region 232 is an orbital path 236. The orbital path 236 has the shape of a circular ring section with a width adapted to the width of the respective pin element 212, 214. A center of the orbital path 236 with an orbital axis lies on the first pivot axis 160. The orbital axis of the orbital path 236 coincides with the first pivot axis 160.

[0174] On the orbital track 236 (outside the locked position), the respective pin element 212, 214 is guided orbitally to the first pivot axis 160, i.e., on a circular path with a center located on the first pivot axis 160. The orbital track 236 has a first end 238 and a second end 240 (see Figure 5). The first end 238 and the second end 240 are ends for guiding the respective pin element 212, 214 on the orbital track. They simultaneously form stops for the pivoting mobility of the holding rod device 14 about the first pivot axis 160 to the base head 12 (when the locking device 202 is not in its locked position). In principle, it is possible for a stop for this pivoting mobility to be reached before the corresponding pin element 212 reaches the first end 238 or 240.

[0175] In principle, the ends 238, 240 define the pivoting range of the support rod device 14 with the base head 12 about the first pivot axis 160 at the first joint 158. The pivoting range of the support rod device 14 relative to the base head 12 about the first pivot axis 160 can be at most smaller than that specified by the ends 238, 240.

[0176] A linear path 242 branches off from the orbital path 236 at each of the first partial path 226 and the second partial path 228. The linear path 242 actually serves to define the blocking function of the blocking device 202.

[0177] The linear path 242 branches off from the orbital path 236 between the first end 238 and the second end 240 with a component in the elevation axis 60.

[0178] In one embodiment, the linear path 242 is aligned parallel to the height axis 60. The linear path 242 is oriented perpendicular to the first pivot axis 160.

[0179] In one embodiment, the respective partial path 226, 228 has the shape of a Y with the linear path 242 as the center line, from which the branches of the orbital path 236 branch off. The arrangement of the linear path 242 defines the fixing position of the holding rod device 14 relative to the base head 12 when the locking device 202 is in its locking position.

[0180] The slider 204 has two distinct positions, namely a first position 244 (Figures 4 to 10), in which associated pin elements lie in the orbital path 236, and a second position 246 (Figures 11 to 15), in which the pin elements 212 lie in the respective linear path 242.

[0181] The first position 244 of the slider 204, in which the pin elements 212, 214 lie in the orbital path 236, is a release position for the joint device 16. The holding rod device 14 can pivot about the first pivot axis 160 due to the orbital path guidance of the pin elements 212, 214 in the orbital path 236.

[0182] When the slider 204 is in the second position 246, the pin elements 212, 214 lie in the linear path 242 and in particular in an end region of the linear path 242. Pivoting about the first pivot axis 160 is then blocked, since the linear path 242 provides a positive connection with respect to pivoting about the first pivot axis 160 for the pin elements 212, 214 (see, for example, Figure 13).

[0183] By moving the pin elements 212, 214 from the first position 244, in which they are positioned in the orbital path 236, to the second position 246, in which they are positioned in the respective linear path 242, the pivotability about the first pivot axis 160 is blocked.

[0184] Moving the pin elements 212, 214 from the first position 244 to the second position 246 is achieved by displacing the slider 204 along the guide 208. The second joint 162 comprises a movement element 248 (see Figure 7), which is rotationally fixedly connected to the holding rod device 14 and which is pivotable about the second pivot axis 164 relative to the second holder 161. The movement element 248 is pivotally positioned at least partially within the interior space 206 of the second holder 161.

[0185] The movement element 248 comprises an immersion space 250 positioned in the interior 206 of the second holder 161. This immersion space 250 is formed by an opening on the movement element 248.

[0186] The slide 204 comprises an immersion area 252 facing the movement element 248. This immersion area 252 is adapted to the immersion space 250.

[0187] In one embodiment, the immersion region 252 is formed by a peg 254 on the slider 204 on a side of the slider 204 that faces away from the first pivot axis 160.

[0188] In one embodiment, the peg 254 is provided with a bevel or chamfer on its front side and the immersion space 250 preferably also has a bevel or chamfer on the peg 254 to enable the peg 254 to be immersed in the immersion space 250.

[0189] In the first position 244 of the slide 204, the immersion region 252 is spaced from the immersion chamber 250; the pin 254 lies outside the immersion chamber 250 (Figure 7). In the second position 246 of the slide 204, in which the pin elements 212, 214 are in the linear path 242, the immersion region 252 is immersed into the immersion chamber 250 (see Figure 15). This blocks the pivotability of the second joint 162 about the second pivot axis 164 relative to the second holder 161.

[0190] In the second position 246 of the slide 204, the pin elements 212, 214, due to their positioning in the linear path 242, block the pivotability of the holding rod device 14 about the first pivot axis 160 to the base head 12.

[0191] By positioning the immersion region 252 in the immersion space 250 of the movement element 248 of the second joint 162, the slide 204 in the second position 246 also blocks the pivotability of the holding rod device 14 on the joint device 16 about the second pivot axis 164.

[0192] A tension element 256 is connected to the slider 204. The tension element 256 is, in particular, a cable or a band. It is guided away from the slider 204 on an upper side of the slider 204, which is remote from the first pivot axis 160. It is fixed to the slider 204, for example, in the area of ​​the peg 254 or below it.

[0193] The pulling element 256 is guided through the interior 206 of the first holder 161 and through the immersion space 250 of the moving element 248.

[0194] The pulling element 256 serves to exert a pulling force on the slide 204 in order to move it from the first position 244 to the second position 246 and to pull it, so to speak, from the first position 244 to the second position 246.

[0195] The tension element 256 is guided through the joint device 16 to the holding rod device 14.

[0196] A drive device 258 is assigned to the pulling element 256. A pulling force can be exerted on the pulling element 256 via the drive device 258 in order to actively push the slider 204 from the first position 244 to the second position 246.

[0197] In one embodiment, the drive device 258 is arranged on the holding rod device 14. It is fundamentally possible for the drive device 258 to be, for example, a motor (electric motor), which is arranged in particular on the holding rod device 14. An operator can then, for example, activate the corresponding motor via the display / operating device 176 in order to perform a pulling movement for the slider 204.

[0198] In a structurally advantageous embodiment, the drive device 258 is designed as a manual drive device, wherein an operator must manually apply the corresponding force, which then leads to the tensile force on the tension element 256.

[0199] In one embodiment, a rotatable handle 266 is arranged on an upper region 260 of the housing device 168. The upper region 260 of the housing device 168 faces the handlebar 114 or the display / operating device 176 and is spaced apart from the handlebar 174. The upper region 260 faces away from the region to which the holding rod device 14 is connected to the joint device 16.

[0200] The handle 262 is located on the operator side 24 of the holding rod device 14.

[0201] A rotating element 264 of the drive device 258, to which the handle 262 is connected in a rotationally fixed manner, is arranged on the holding rod device 14. The rotating element 264 is rotatably mounted on the holding rod device 14. A rotation axis 266 lies transversely and in particular perpendicular to a longitudinal axis 268 of the holding rod device 14 or of a holding rod 166 of the holding rod device 14. The longitudinal axis 268 is an axis between a proximal end and a distal end of the holding rod 166.

[0202] The tension element 256 is guided from the joint device 16 (from the slider 204) through the housing device 14 to the rotating element 264 and is coupled thereto. In one embodiment, the tension element 256 is guided from the joint device 16 to the holding rod device 14 and to a region below the battery device 170.

[0203] The tension element 256 then extends to a side 270 of the support rod assembly 14, which faces away from the side on which the battery assembly 170 (and the tank assembly 172) are located. On this side 270, the tension element is guided to the rotating element 264 and connected to it.

[0204] The rotating element 264 can be rotated by an operator using the handle 262. The pulling element 256 is fixed to the rotating element 264. During rotation in a direction of rotation 272 (see Figure 9), a pulling force is exerted on the pulling element 256.

[0205] The drive device 258 is designed with the rotary element 264 in particular such that a position in which the slide 204 is brought into the second position 246 can be locked, for example by exceeding a dead center (as in a toggle lever mechanism) on the rotary element 264.

[0206] This then allows the second position 246 of the slide 204 to be fixed and thus in turn the holding rod device 14 to be fixed relative to the base head 12.

[0207] The slider 204 is connected to a spring device 290 (Figures 7 and 15).

[0208] In one embodiment, the spring device 290 comprises a tension spring, which is connected on one side to the base head body 18 and, for this purpose, for example, to the first holder 159. On the other side, this tension spring is connected to the slide 204. A spring force of this spring device 290 strives to push the slide 204 into the first position 244 or to hold it there. In particular, it is arranged such that the length of the tension spring does not change during the movement of the pin elements 212, 214 on the orbital path 236. When the slide 204 is pulled from the first position 244, the spring force of the spring device 290 must be overcome by means of the tensile force exerted by the tensile element 256.

[0209] A spring force of the spring device 290 acts opposite to a tensile force of the tension element 256.

[0210] When the slider 204 is moved from the first position 244 (Figure 7) to the second position 246 (Figure 15), the tension spring of the spring device 290 is stretched accordingly. This stretching is achieved by the tensile force of the tension element 256.

[0211] When the locking on the rotary element 264 is released, the spring device 290 pulls the slider 204 into the first position 244. The locking of the joint device 16 is then released and pivoting about the first pivot axis 160 and the second pivot axis 164 is possible.

[0212] The floor cleaning machine 10 includes a further spring device 292 (see Figure 5). This spring device 292 is associated with the holding rod device 14.

[0213] In one embodiment, the spring device 292 comprises a spiral spring which is positioned between the wall part 222, 224 and the second holder 161.

[0214] In one embodiment, a corresponding stop 294 is located on the first holder 161. The spring device 292 serves to relieve the operator's manual force. In principle, (without the spring device 292), an operator must exert a certain amount of force to hold the holding rod device 14 in such a way that it does not fall to the floor 22 due to gravity due to its pivotability about the first pivot axis 160. The spring device 292 provides a counterforce to relieve the operator. The operator then no longer has to support the full weight of the holding rod device 14.

[0215] The spring device 292 has, for example, a freewheel in an area 296.

[0216] The spring device 292 is assigned to the first joint 158. It is designed, for example, such that upon full deflection of the support rod device 14 about the first pivot axis 160, wherein the support rod device 14 then has no or a minimal distance from the floor 22, it exhibits a relief in the range of at least 10 percent and, for example, a relief in the range between 10 percent and 40 percent.

[0217] In a specific embodiment, a relief of approximately 0.5 kg occurs when the pivoting angle of the holding rod device 14 to the ground is 45°, i.e., for an operator, the mass of the holding rod device is reduced by 0.5 kg.

[0218] Basically, the spring force of the spring device 292 depends on the pivoting position of the holding rod device 14 about the first pivot axis 160.

[0219] The locking device 202 works as follows:

[0220] When the slider 204 is in its first position 244, the pin elements 212, 214 are in their respective orbital paths 236. The immersion region 252 of the slider 204 is out of the immersion space 250 at the second joint 162. This state is illustrated in Figures 4 to 10. In the first position 244 of the slider 204, the holding rod device 14 can be pivoted toward the base head 12 about the first pivot axis 160 and the second pivot axis 164 of the joint device 16.

[0221] Figures 8 to 10 illustrate corresponding pivot positions of the support rod assembly 14 relative to the floor head 12 and thus also relative to the floor 22 to be cleaned. By pivoting about the first pivot axis 160 and the second pivot axis 104, an operator can bring the support rod assembly 14 into the desired position relative to the floor head 12 (and thus also relative to the floor 22) in order to perform an optimized cleaning process.

[0222] In the first position 244 of the slider 204, in particular, no pulling force is exerted via the pulling element 256. The handle 262 is in a "neutral" position 273 (see, for example, Figure 8).

[0223] By moving from position 273 to the locking position 278, the pulling force is exerted on the slide 204.

[0224] A pivot angle range about the first pivot axis 160 is defined by the first end 238 and the second end 240 of the orbital path 236. As explained above, a further narrowing can generally be achieved, for example, by the support rod device 14 being placed against the ground head 12.

[0225] Pivoting about these pivot axes 160, 164 is also possible when the dirty fluid tank device 92 is mounted on the base head 12. The dirty fluid tank device 92 has a central cutout 274 (indicated in Figure 2), with which it can be placed onto the base head 12 via the joint device 16. When the dirty fluid tank device 92 is fixed to the base head 12, the joint device 16 is positioned with the first holder 159 in the cutout 274. Preferably, the second holder 161 is also positioned at least partially in this cutout 274. In the illustrated embodiment (see, for example, Figure 8), the linear path 242 branches off from the orbital path 236 centrally between the first end 238 and the second end 240. The linear path 242 is oriented parallel to the height axis 60.

[0226] As a result, the orbital path 236 essentially enables the support rod device 14 to pivot to both sides of the ground head 12. Figures 8 to 10 show a pivot to the right (toward an operator). During this pivot, the distance between the operator side 24 and the ground decreases, with the operator side 24 facing the ground 22.

[0227] By appropriately designing the orbital path 236, pivoting in the opposite direction is also possible, reducing the distance between the tank device 172 and the ground 22, with the tank device 172 or the battery device 170 facing the ground. This pivoting capability can, in principle, be blocked or restricted by other means.

[0228] To lock the pivoting of the joint device 16 (Figures 11 to 15), the holding rod device 14 is first aligned with the base head 12 by an operator (see Figures 11, 12). The alignment is such that the pin elements 212, 214 of the slide 204 can be brought into the linear path 242 by the tension element 256.

[0229] This alignment of the holding rod device 14 to the floor head 12 corresponds to a fixing position of the holding rod device 14 to the floor head 12.

[0230] In one embodiment, such a fixing position 276 (Figure 12) is such that the longitudinal axis 268 of the holding rod device 14 is oriented at least approximately perpendicular to the cleaning installation plane 32. For example, the longitudinal axis 268 is oriented in the range between 80° and 100° to the cleaning installation plane 32.

[0231] Furthermore, in the fixing position 276, preferably no pivoting about the second pivot axis 164 (no pivoting at the second joint 162) is provided, wherein in particular the position at the second joint 162 is then such that a middle position exists between extreme pivot positions.

[0232] Once the locking position 276 is reached, an operator moves the handle 262 into a locking position 278 (Figure 12) by rotating the rotating element 264 about the rotation axis 266. By moving the handle 262 accordingly, the operator exerts a force on the pulling element 256, which then acts on the slider 204.

[0233] By presetting the fixation position 276 by an operator, the slider 204 can be moved by the tension element 256 and brought into the second position 246. In doing so, the pin elements 212, 214 are guided out of the orbital path 236 and into the linear path 242. At the same time, the immersion area 252 dips into the immersion space 250. In this process, the mobility at the second joint 162 and the mobility at the first joint 158, and thus the overall mobility at the joint device 16, are blocked "synchronously."

[0234] The floor cleaning machine 10 according to the invention functions as follows:

[0235] During a cleaning operation for a floor 22, the parking device 114 is not active. The support feet 140 are pivoted about the second pivot axis 134 on the second pivot bearing 132 such that they do not touch the cleaning installation plane 32.

[0236] The floor head 12 is supported by the casters 40, 42 and the cleaning tools 20, 21, and is guided over the floor 22 to be cleaned. The inclination of the cleaning tools 20, 21 relative to the floor 22 generates propulsion. An operator can maneuver the floor cleaning machine 10 accordingly via the cardan joint device 16 (without being locked by the locking device 202).

[0237] It is intended that the roller 118 runs freely, so to speak, and is supported on the base 22 and rotates around the roller axis 126. However, it has no further supporting function for the base head 12.

[0238] The spring device 128 presses the roller 118 against the floor 22.

[0239] The transport roller device 98 is spaced from the cleaning installation level 32.

[0240] For a cleaning operation, the cleaning tools 20, 21 rotate in opposite directions and act mechanically on the floor 22 to be cleaned. Cleaning fluid is supplied to the floor to be cleaned directly and preferably indirectly via the supply device 178. In particular, the cleaning fluid is supplied to the cleaning tools 20, 21, from where it reaches the floor 22.

[0241] The rotating cleaning tools 20, 21 loosen dirt from the floor. This is assisted by the cleaning fluid.

[0242] Dirty fluid is removed via the suction bar 82, which is subjected to the suction flow of the blower device 90, and coupled into the dirty fluid tank device 92. The dirty fluid tank device 92 is removable from the floor head 12 and can then be emptied and cleaned accordingly.

[0243] To use the floor cleaning machine 10 without cleaning the floor

[0244] 22, the joint device 16 is first moved via the locking device 202 without alignment into the fixing position 276 and

[0245] Rotation of the handle 262 is locked in such a way that there is no longer any mobility of the holding rod device 14 to the floor head 12.

[0246] In one embodiment, the floor cleaning machine 10 is tilted backward toward the operator until the transport roller device 98 touches the floor 22. Until the transport roller device 98 touches the floor 22, the floor head 12 and the casters 40, 42 are supported on the floor 22 during this tilting movement. A further tilt can then be performed, with the floor head 12 supported on the transport device 98 on the floor 22.

[0247] By tilting the base head 12, the roller 118 is released, so to speak, and the spring device 128 pushes it into the parking position. By tilting and lifting the roller 118 from the base 22 accordingly, this parking position for the roller 118 is automatically reached. The roller 118 is brought into the parking position via the holder 120 by pivoting about the first pivot axis 124. The parking position is an outer position, which is achieved by a stop or by the design of the parking device 114 with its individual components.

[0248] In principle, the parking position is also reached when the floor cleaning machine 10 is lifted as a whole from the floor 22. The described tilting movement requires less effort from the operator.

[0249] The coupling device 142 transmits motion, with an "initial movement" occurring through the pivoting of the holder 120 with the roller 118, to the support leg device 130. The shaft 138 rotates, driven by the spring device 128, and mediates via the coupling device 142 and the second pivot axis 134, bringing the support legs 140 into the parking position. The parking installation plane is then defined.

[0250] When the floor head 12 is tilted back, the floor cleaning machine 10 can be set up on a storage area on the floor head 12 by means of the parking installation level, whereby the cleaning tools 20, 21 no longer touch the storage area.

[0251] In particular, in the parking position, the transport roller device 98 is again spaced from the storage area.

[0252] For cleaning-free transport of the floor cleaning machine 10, it is tilted (with the articulation device 16 locked, without the locking device 202) until the transport roller device 98 rests on the floor 22. The floor cleaning machine 10 can then be moved across the floor like a sack barrow, tilted to the floor 22 via the transport roller device 98, for example, to a new location or to a storage location.

[0253] According to the invention, a locking device 202 is provided, by which the joint device 16 can be locked "synchronously" at both the first joint 158 ​​and the second joint 162. The slider 204 is arranged in a protected manner within the joint device 16. The tension element 256 enables "remote control" for locking the joint device 16. In particular, it is provided that the tension element 256 has a length of at least 50 cm. This enables "remote control" for locking the joint device 16.

[0254] An operator can, for example, perform the locking operation using the handle 262. The spring device 290 allows for easy unlocking after the handle 262 is released.

[0255] The floor cleaning machine 10 includes a control device 280. In one embodiment, corresponding circuit elements of the control device 280 are located on the support rod device 14, facing away from the side with the tank device 172. A sensor 282 is assigned to the locking device 202, which is connected to the control device 280 for signaling purposes. The sensor 282 detects whether the locking device 202 is in a locked position (or not).

[0256] In one embodiment, the sensor 282 is associated with the drive device 258 and, in particular, with the rotary element 264. It checks whether, for example, the locking position 278 is present.

[0257] It is also possible, for example, for the sensor 282 to directly check whether the slide 204 is in its first position 244 or in the second position 246 (locking position).

[0258] The sensor 282 can detect whether the locking device 202 blocks the mobility of the holding rod device 14 to the floor head 12.

[0259] If such a blockage is detected, the control device 280 receives the corresponding information via sensor 282. It then switches off the drive motor 74 and the blower device 90. In the locked position of the articulated device 16, no cleaning operation of the floor cleaning machine 10 is provided, and therefore, a drive of the cleaning tools 20, 21 is not necessary, and the suction power generation of the blower device 90 can also be deactivated.

[0260] This results in easier operation, since when an operator activates the locking device 202, the driven components of the floor cleaning machine 10 are automatically switched off.

[0261] Floor cleaning machine

[0262] Ground head

[0263] Holding rod device

[0264] Joint device

[0265] Floor head body first cleaning tool second cleaning tool

[0266] Floor

[0267] Operator side

[0268] Operator side

[0269] bottom

[0270] Top

[0271] Cleaning installation level

[0272] Effective area

[0273] support wheel

[0274] Support wheel first castor second castor

[0275] front end

[0276] Rear end

[0277] Longitudinal axis

[0278] Forward direction

[0279] Rear end first lateral side end second lateral side end

[0280] transverse axis

[0281] Middle level

[0282] Height axis first swivel axis second swivel axis first disc holder second disc holder first rotation axis second rotation axis drive motor holder

[0283] Effective area bristle bundle suction bar contact area room

[0284] Connection

[0285] Blower device

[0286] Dirty fluid tank device roll

[0287] peripheral area

[0288] Transport roller device first transport roller second transport roller roller axis parking device roller holder first swivel bearing first swivel axis roller axis

[0289] Spring device Support leg device Second pivot bearing Second pivot axis a Holder b Holder Shaft Support leg a First support leg b Second support leg

[0290] Coupling device

[0291] Rod first swivel joint

[0292] Bridge second pivot joint first joint

[0293] First holder first swivel axis

[0294] Second holder second joint second swivel axis

[0295] Holding rod

[0296] Housing equipment

[0297] Battery setup

[0298] Tank facility for cleaning fluid

[0299] handlebar

[0300] Display / operating device

[0301] Feeding device

[0302] locking device

[0303] slider

[0304] Interior

[0305] guide

[0306] Leadership direction

[0307] First pin element

[0308] Second pin element

[0309] opening

[0310] Wall element

[0311] Guide device

[0312] Wall part

[0313] Wall part

[0314] First section Second section

[0315] recess

[0316] First area

[0317] Second area

[0318] Orbital path

[0319] First end

[0320] Second ending

[0321] Linear track

[0322] First position

[0323] Second position

[0324] Movement element

[0325] Immersion room

[0326] Immersion area

[0327] stake

[0328] Tension element

[0329] drive device

[0330] Upper area

[0331] handle

[0332] Rotating element

[0333] axis of rotation

[0334] Longitudinal axis

[0335] Page

[0336] rotation

[0337] "neutral" position

[0338] Excerpt

[0339] Fixation position

[0340] Locking position control device sensor

[0341] Spring device

[0342] Spring device stop

[0343] Area

Claims

Patent claims 1. A floor cleaning machine comprising a floor head (12), at least one cleaning tool (20, 21) rotatably mounted on the floor head (12), a support rod device (14), a joint device (16) by means of which the support rod device (14) is movably coupled to the floor head (12), wherein the joint device (16) is a cardan joint device and comprises a first joint (158) by means of which the support rod device (14) is pivotable about a first pivot axis (160), and a second joint (162) connected to the first joint (158), by means of which the support rod device (14) is pivotable about a second pivot axis (164), wherein the second pivot axis (162) is oriented transversely and in particular perpendicularly to the first pivot axis (160), and a locking device (202) by means of which the mobility of the support rod device (14) relative to the floor head (12) is lockable, characterized inthat a slider (204) is arranged within the joint device (16) in a linearly displaceable manner, which slider has at least a first position (244) and a second position (246), wherein in the first position (244) of the slider (204) the mobility of the joint device (16) in the first pivot axis (160) and the second pivot axis (164) is released, and in the second position (246) the mobility of the joint device (16) in the first pivot axis (160) and the second pivot axis (164) is blocked, and that the slider (204) is connected to a pulling element (256), wherein by pulling on the pulling element (256) the slider (204) can be brought from the first position (244) into the second position (246).

2. Floor cleaning machine according to claim 1, characterized in that the tension element (256) is designed to be linearly flexible and is in particular a rope or belt or a chain.

3. Floor cleaning machine according to claim 1 or 2, characterized in that the pulling element (256) is guided away from the slide (204) on the holding rod device (14) to a drive device (258).

4. Floor cleaning machine according to claim 3, characterized by at least one of the following: the pulling element (256) is guided in a housing device (168) of the holding rod device (14); the pulling element (256) is guided on a side of the holding rod device (14), which is or has an operator side (24); the pulling element (256) is guided on a side of a housing device (168), which is remote from a side of the housing device (168) on which a battery device (170) and / or a tank device (172) is positioned.

5. Floor cleaning machine according to one of the preceding claims, characterized in that a length of the pulling element (256) is at least 50 cm.

6. Floor cleaning machine according to one of the preceding claims, characterized in that the pulling element (256) is coupled to a drive device (258) by means of which a pulling force can be exerted on the pulling element (256).

7. Floor cleaning machine according to claim 6, characterized in that the drive device (258) is arranged at a distance from the joint device (16) on the holding rod device (14).

8. Floor cleaning machine according to claim 6 or 7, characterized in that the drive device (258) is arranged on an upper region (260) of a housing device (168), with at least one of the following: the upper region (260) faces away from the joint device (16) and / or the floor head (12); the upper region (260) faces a link (174) of the holding rod device (14); the upper region (260) faces a display / operating device (176); the upper region (260) lies between a proximal end and a distal end of a holding rod (166) of the holding rod device (14).

9. Floor cleaning machine according to one of claims 6 to 8, characterized in that the drive device (208) is arranged on an operator side (24) of the holding rod device (14).

10. Floor cleaning machine according to one of claims 6 to 8, characterized in that the drive device (208) has a handle (262) or is coupled to a handle (262) and a manual actuation is provided for generating the pulling force.

11. Floor cleaning machine according to one of claims 6 to 10, characterized in that the drive device (208) is assigned a dead center, wherein a locking position is reached by exceeding the dead center and determines the second position (246) of the slide (204).

12. Floor cleaning machine according to one of the preceding claims, characterized in that at least one pin element (212; 214) is seated on the slide (204) in a translationally fixed manner, which pin element is assigned to the first joint (158) and which is guided on a guide device (220) with a defined guide track (226, 228) for the at least one pin element (212; 214).

13. Floor cleaning machine according to claim 12, characterized in that the guide device (220) comprises an orbital track (236) with the first pivot axis (160) as the orbital axis, wherein in the first position (244) of the slide (204) the at least one pin element (212; 214) is guided on the orbital track (236).

14. Floor cleaning machine according to claim 13, characterized in that the guide device (220) comprises a linear track (242) which is connected to the orbital track (236) and which is oriented perpendicular to the first pivot axis (160), wherein in the second position (246) of the slider (204) the at least one pin element (212; 214) is positioned in the linear track (242).

15. Floor cleaning machine according to claim 14, characterized by at least one of the following: the at least one pin element (212; 214) can be brought from the orbital track (236) into the linear track (242) by the pulling element (256); the linear track (242) branches off from the orbital track (236); the linear track (242) branches off from the orbital track (236) between a first end (238) and a second end (240) of the orbital track (236), wherein a branching point specifies a fixing position (276) of the holding rod device (14) relative to the floor head (12) and specifies a pivot angle range of the holding rod device (14) for pivoting about the first pivot axis (160).

16. Floor cleaning machine according to one of claims 12 to 15, characterized in that the guide device (210) is arranged on a wall element (218) which is pivotally fixed with respect to a floor head body (18) of the floor head (12) and in particular is seated on a first holder (159) via which the first joint (158) is fixed to the floor head body (18).

17. Floor cleaning machine according to one of claims 12 to 16, characterized in that the guide device (220) has opposite wall parts (222, 224), wherein a first pin element (212) is positioned on a first wall part (222) and a second pin element (214) is positioned on a second wall part (224).

18. Floor cleaning machine according to one of the preceding claims, characterized in that the second joint (162) is assigned an immersion space (250) and the slide (204) has an immersion region (252), wherein in the second position (246) of the slide (204) the immersion region (252) is immersed in the immersion space (250) and blocks pivoting of the holding rod device (14) about the second pivot axis (164) on the second joint (152).

19. Floor cleaning machine according to claim 18, characterized in that in the first position (244) of the slide (204) the immersion area (252) is immersed out of the immersion space (250).

20. Floor cleaning machine according to claim 18 or 19, characterized in that the immersion space (250) and the immersion region (252) are arranged within the joint device (16).

21. Floor cleaning machine according to one of claims 18 to 20, characterized in that the pulling element (256) is guided away from the slide (204) in the immersion space (250).

22. Floor cleaning machine according to one of the preceding claims, characterized in that in the second position (246) of the slide (204), at least one of the following is present: the holding rod device (14) is oriented relative to the floor head (12) such that it is oriented with a longitudinal axis (268) of the holding rod device (14) at an angle of between 80° and 100° to a cleaning installation plane (32) of the floor head (12) for a floor (22) to be cleaned; the holding rod device (14) is not pivoted about the second pivot axis (164).

23. Floor cleaning machine according to one of the preceding claims, characterized in that the slider (204) is arranged and designed such that a linear displacement of the slider via the pulling element (256) is only possible when the holding rod device (14) is in a basic position relative to the floor head (12).

24. Floor cleaning machine according to one of the preceding claims, characterized by at least one sensor (282) which is connected to a control device (280) in a signal-effective manner and which directly or indirectly detects a transition of the slide (204) into the second position (246) and / or a position of the slide (204) in the second position (246).

25. Floor cleaning machine according to claim 24, characterized in that the control device (280) upon detection of the second position (246) performs at least one of the following: switching off a drive motor (74) for the at least one cleaning tool (20, 21); switching off a blower device (90) which generates a suction flow.

26. Floor cleaning machine according to one of the preceding claims, characterized in that the slide (204) is assigned a spring device (290), the spring force of which tends to bring the slide (204) into the first position (244), wherein the spring force is in particular counteracting a tensile force of the tensile element (256).

27. Floor cleaning machine according to one of the preceding claims, characterized in that a transport roller device (160) for a transport travel of the floor cleaning machine is arranged on the floor head (12).

28. Floor cleaning machine according to one of the preceding claims, characterized in that a parking device (114) is arranged on the floor head (12), which can be brought into a parking position and by means of which the floor cleaning machine can be brought into a parking position in the parking position of the parking device (114), in which the floor cleaning machine can be parked with the floor head (12) on a parking surface and the at least one cleaning tool (20, 21) is spaced apart from the parking surface.

29. Floor cleaning machine according to one of the preceding claims, characterized in that a first cleaning tool (20) and a second cleaning tool (21) are provided, which are driven in particular to rotate in opposite directions to one another, and wherein in particular active surfaces (34) of the cleaning tools (20, 21) are inclined to a cleaning installation plane (32) of the floor head (12) for a floor (22) to be cleaned.

30. Floor cleaning machine according to one of the preceding claims, characterized in that a tank device (172) for cleaning liquid and / or a battery device (170) are arranged on the holding rod device (14).

31. Floor cleaning machine according to one of the preceding claims, characterized by a supply device (178) for cleaning liquid to the at least one cleaning tool (20, 21) and / or to a floor to be cleaned (22).

32. Floor cleaning machine according to one of the preceding claims, characterized in that a blower device (90) for generating a suction flow is arranged on the floor head (12) and a dirty fluid tank device (92) is removably arranged on the floor head (12).

33. Floor cleaning machine according to one of the preceding claims, characterized in that at least one suction bar (82) is located on the floor head (12).

34. Floor cleaning machine according to one of the preceding claims, characterized in that a handlebar (174) is located on the holding rod device (14). * * *

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