Floor cleaning machine comprising a fan device on the floor head

Abstract

The invention relates to a floor cleaning machine comprising: a floor head (12) to which a support surface (28) for a floor (18) to be cleaned is assigned; a first disc holder (48) and a first cleaning tool (56), the first disc holder (48) being mounted on the floor head (12) and holding the first cleaning tool (56) and being rotatably driven about a first axis of rotation (52) during operation of the floor cleaning machine; a second disc holder (50) and a second cleaning tool (58), the second disc holder (50) being mounted on the floor head (12) and holding the second cleaning tool (58) and being rotatably driven about a second axis of rotation (54) during operation of the floor cleaning machine, the first axis of rotation (52) of the first disc holder (48) and the second axis of rotation (54) of the second disc holder (50) each being oriented transversely to the support surface (28); a holding rod device (14) which is movably articulated to the floor head (12) via an articulation device (16); a fan device (100) which generates a suction flow during operation of the floor cleaning machine; and a dirty fluid tank device (104) for collecting dirty fluid, the fan device (100) being mounted on the floor head (12) and the dirty fluid tank device (104) being removably seated on the floor head (12).

Description

[0001] Floor cleaning machine with blower device on the floor head

[0002] The invention relates to a floor cleaning machine, comprising a floor head, to which a mounting plane for a floor to be cleaned is assigned, a first disc holder and a first cleaning tool, wherein the first disc holder is arranged on the floor head and holds the first cleaning tool and is driven to rotate about a first axis of rotation during operation of the floor cleaning machine, a second disc holder and a second cleaning tool, wherein the second disc holder is arranged on the floor head and holds the second cleaning tool and is driven to rotate about a second axis of rotation during operation of the floor cleaning machine, wherein the first axis of rotation of the first disc holder and the second axis of rotation of the second disc holder are each oriented transversely to the mounting plane, a holding rod device which is movably linked to the floor head via a joint device, a blower device,which generates a suction current during operation of the floor cleaning machine, and a dirty fluid tank device for collecting dirty fluid.

[0003] US 2014 / 0115819 A1 discloses a floor cleaning device with a fan arranged behind at least one brush.

[0004] CN 114795012 A also discloses a floor cleaning device.

[0005] CN 215128118 U also discloses a floor cleaning device.

[0006] DE 10 2016 208 895 A1 discloses a soil tillage module for a soil tillage machine with at least two rotatable soil tillage tools, which, in an operating position of the soil tillage module, are each rotatably mounted relative to a support structure about an axis of rotation oriented at least substantially perpendicular to a subsoil to be tilled. The drive system for driving the soil tillage tools comprises at least one electric motor and at least one belt drive coupled to a drive shaft of the at least one electric motor. The at least one electric motor is mounted in a horizontal orientation on the support structure such that the drive shaft is oriented at least substantially orthogonal to the axes of rotation of the tillage tools.

[0007] Further cleaning machines are known from CN 211749345 U, CN 204445698 U, US 8,161,595 Bl, DE 197 29 199 Al, KR 960004005 U, US 3,024,848 A, DE 1 239 448 B, GB 823 576 A and US 1,938,300 A.

[0008] The invention is based on the object of providing a floor cleaning machine of the type mentioned above, which has long operating times while being easy to operate and providing optimised cleaning results.

[0009] This object is achieved according to the invention in the floor cleaning machine mentioned at the outset in that the blower device is arranged on the floor head and the dirty fluid tank device is removably mounted on the floor head.

[0010] The blower unit generates a suction flow, which transports the dirty fluid to the dirty fluid tank unit. Both the dirty fluid tank unit and the blower unit are located at the bottom head, resulting in short flow paths.

[0011] By locating the dirt fluid tank unit on the floor head, the dirt fluid tank unit can be designed with a high capacity. This, in turn, results in long operating times. The positioning of both the blower unit and the dirt fluid tank unit on the floor head provides the operator with an optimized center of gravity for the floor cleaning machine. This, in turn, results in easy handling and good maneuverability.

[0012] It is advantageous if the base head has a base head body on which the joint device is located, wherein the base head body in particular has a plate-shaped area. This results in a structurally simple design.

[0013] Furthermore, it is advantageous if at least one of the following is provided: the holding rod device is gimbal-mounted to the ground head by the joint device; the joint device comprises a first joint with a first pivot axis and a second joint with a second pivot axis, wherein the first pivot axis and the second pivot axis are oriented transversely and in particular perpendicular to one another and the first pivot axis is oriented parallel to the installation plane; a first pivot axis of the joint device is oriented transversely and in particular perpendicular to a forward travel direction of the ground head.

[0014] The gimbal-mounted support rod assembly and the joint assembly ensure excellent maneuverability of the floor cleaning machine. In a structurally simple design, the joint assembly comprises a first joint and a second joint, each with pivot axes oriented perpendicular to each other. This results in high maneuverability.

[0015] By orienting the first pivot axis of the articulated device perpendicular to the forward direction of travel, the inclination of the holding rod device in particular to a floor to be cleaned can be easily adjusted by an operator.

[0016] It is particularly advantageous if a first joint of the joint device is fixed directly or via a first holder to a floor head body of the floor head, and a second joint of the joint device is seated directly or via a second holder on the first joint, wherein in particular the second joint is positioned above the first joint with respect to a vertical axis perpendicular to the installation plane. This effectively provides a receiving space for the dirty fluid tank device on the floor head. The dirty fluid tank device can be realized with a high receiving volume for dirty fluid. The joint device can be designed to be structurally simple, while allowing the floor cleaning machine to be highly maneuverable.

[0017] It is particularly advantageous if the dirty fluid tank device has a cutout, wherein, when the dirty fluid tank device is positioned on the floor head, the joint device lies at least partially in the cutout. This makes it possible, in particular, to provide a single dirty fluid tank device as a unit, which can be fixed to the floor head in an optimized manner. The dirty fluid tank device can be realized with a large storage volume. This results in an optimized arrangement of the joint device, in particular for maneuverability of the floor cleaning machine and for adjustability of an angle of the holding rod device to a floor to be cleaned. The cutout provides a space which enables the dirty fluid tank device to be designed as a unit and an optimized arrangement on the floor head without hindering the mobility of the holding rod device relative to the floor head.

[0018] It is particularly advantageous if, with the dirty fluid tank device fixed to the base head, a first joint of the joint device is positioned within the cutout such that a first pivot axis lies within the cutout, and a second joint of the joint device is positioned such that a second pivot axis of the second joint lies above the first pivot axis with respect to a height axis perpendicular to the installation plane, at least when the support rod device is oriented perpendicular to the installation plane. This results in optimized maneuverability with a structurally simple design of the joint device.

[0019] It is particularly advantageous if a free space is arranged or formed on the floor head as a movement space for pivoting the holding rod device relative to the floor head about a first pivot axis, wherein the first pivot axis is perpendicular to a forward direction of travel of the floor head. This results in high maneuverability. An operator can easily adjust the angle of inclination of the holding rod device relative to the floor to be cleaned, resulting in a wide pivot range for the holding rod device and, in particular, the holding rod device can be positioned at least approximately parallel to a floor to be cleaned with respect to a longitudinal axis. The dirty fluid tank device can be designed with a large storage volume.

[0020] For the same reason, it is advantageous if the free space is a continuation of a section of the dirty fluid tank device when the dirty fluid tank device is fixed to a base head, wherein a continuation line is perpendicular to the first pivot axis. In a structurally advantageous embodiment, a first column device, a second column device, and a third column device are positioned on a base head body of the base head, wherein the first column device, the second column device, and the third column device protrude transversely from the base head body. Corresponding components of the base head can be accommodated in a space-saving manner in order to realize a dirty fluid tank device that has a large storage volume.

[0021] In particular, at least one of the following is provided: the first column device comprises the blower device; the second column device comprises a drive device for the first disc holder and / or the second disc holder; the third column device comprises the joint device.

[0022] The corresponding components can be accommodated in a space-saving manner. The dirty fluid tank system, in turn, can be designed with a large capacity for dirty fluid.

[0023] In particular, at least one of the following is provided: the first column device, the second column device, and the third column device are each spaced apart from one another; between the first column device and the second column device, a free space is formed as a movement space for the holding rod device; between the first column device and the third column device, and between the second column device and the third column device, a receptacle for the dirty fluid tank device is formed at least in a partial area;the first column device, the second column device and the third column device lie on an isosceles triangle, wherein the first column device and the second column device lie at a base of the triangle and the third column device lie on a height axis of the triangle relative to the base, and wherein in particular the base is parallel to a first pivot axis of the joint device and / or the height axis of the triangle is perpendicular to the first pivot axis;

[0024] This results in optimized use of space at the base head. The dirty fluid tank unit can be "housed" at the base head, allowing the dirty fluid tank unit to be designed with a large storage volume.

[0025] Furthermore, it is advantageous if at least a portion of a torque transmission device for transmitting torque from a drive device to the first disc holder and the second disc holder is arranged between the first column device, the second column device, and the third column device. This results in optimized use of space. In particular, if the torque transmission device is designed to be "flat," optimized use of space is achieved. The dirty fluid tank device can then also be fixed to the base head above the torque transmission device.

[0026] Furthermore, it is advantageous if the first column device and / or the second column device have or form a contact area and / or a holding area for the dirty fluid tank device. This allows the number of components to be kept low. Optimized use of space is achieved if the first column device is located at a first corner area of ​​a base head body of the base head and the second column device is located at a second corner area of ​​the base head body, wherein the second corner area is opposite the first corner area. As a result, the column areas are arranged, so to speak, at edge areas of the base head body and a large receiving volume is provided at the base head for the dirty fluid tank device. This, in turn, allows the dirty fluid tank device to be realized with a large receiving volume for dirty fluid.

[0027] It is advantageous if a drive device for the first disc holder and the second disc holder is arranged on a base head body of the base head, in particular with at least one of the following: a common drive motor is provided for the first disc holder and the second disc holder; at least one drive motor is provided, which is arranged vertically on the base head body with a motor axis which is oriented transversely and in particular perpendicularly or at an angle of at most 10° to the perpendicular to the installation plane.

[0028] This results in optimized space utilization and provides sufficient space for the dirty fluid tank system. This, in turn, can be implemented with a large storage volume for dirty fluid.

[0029] Furthermore, it is advantageous if a gear housing, in which a torque transmission device is positioned, is arranged on a base head body of the base head, and an upper side of the housing forms a contact area and / or a holding area for the dirty fluid tank device when the dirty fluid tank device is fixed to the base head. This results in optimized space utilization, which in turn can be used for the dirty fluid tank device.

[0030] In one embodiment, the dirty fluid tank device has a bottom, a top, a front, a back, a first lateral side, and a second lateral side opposite the first lateral side. The dirty fluid tank device has a cutout that is continuous and open between the bottom and the top, and that is open toward the back. This allows the dirty fluid tank device to be positioned on the base head via the gear mechanism using the cutout. This results in easy insertion and removal.

[0031] For the same reason, it is advantageous if the dirty fluid tank device has a first web region, on which the first lateral side lies, a second web region, on which the second lateral side lies and which is spaced from the first web region, and a third web region, which is connected to the first web region and the second web region, wherein the cutout is formed between the first web region, the second web region, and the third web region. The dirty fluid tank device then forms a type of bracket, which can be pushed over the joint device.

[0032] It is advantageous if at least one of the following is provided: the rear side is located on the first web area and the second web area; the front side is located on the third web area; the dirty fluid tank device has a U-shape in plan view with the first web area and the second web area each as an upstroke for the U. This results in an optimized use of space at the base head.

[0033] It is particularly advantageous if a connection for fluid communication with the blower device is arranged on the first web area and / or the second web area. In particular, the respective web area with the connection comprises an inclined surface, and the blower device on the base head body is also assigned a corresponding inclined surface. This automatically creates a fluid connection when inserting the dirty fluid tank device into the base head.

[0034] Furthermore, it is advantageous if the first web region has a first overlap region and / or the second web region has a second overlap region for a housing region on the base head. The housing region is in particular a region of a column housing. This allows, when the dirty fluid tank device is located on a base head, a closed shape for the base head to be formed, and cracks and the like related to the external shape can be avoided. In particular, a flush transition can be created between partial regions of the base head and the dirty fluid tank device.

[0035] The ground head has a longitudinal axis which extends between a front end and a rear end of the ground head and which is parallel to a forward direction of travel of the ground head.

[0036] It is advantageous if at least one of the following is provided: the blower device is located in the region of the rear end; a drive device for the first disc holder and the second disc holder is located in a region of the rear end; when the dirty fluid tank device is located on the floor head, a front side of the dirty fluid tank device is located on the front end of the floor head; an insertion direction of the dirty fluid tank device on the floor head has a directional component parallel to the longitudinal axis with a direction towards the rear end.

[0037] This results in optimized use of space at the base head for accommodating the dirty fluid tank unit. The dirty fluid tank unit, in turn, can be easily removed and inserted and can be designed with a large dirty fluid capacity.

[0038] It is advantageous for an operator if at least one of the following is provided: the dirty fluid tank device comprises a container and an openable and in particular removable lid; a container of the dirty fluid tank device and a lid of the dirty fluid tank device have substantially the same cross-sectional shape; a pivotable handle bar is located on the dirty fluid tank device and in particular on a container of the dirty fluid tank device; the dirty fluid tank device has a recessed area for recessedly holding a handle bar; a grip recess for gripping a handle bar and in particular a pivotable handle bar is arranged on a front side of the dirty fluid tank device;a pivot joint for pivoting a handle on the dirty fluid tank device is located in the area of ​​the joint device relative to a longitudinal axis of the floor head when the dirty fluid tank device is fixed to the floor head;

[0039] If the lid and container are essentially the same shape, a large access area can be provided for the container after the lid is removed. This allows for easy cleaning, for example.

[0040] By arranging a pivoting handle, the dirty fluid tank unit can be easily removed from the floor head.

[0041] Due to the recessed area, the handle essentially does not protrude beyond an outer contour of the dirty fluid tank device and the risk of "getting caught", including the risk of the dirty fluid tank device becoming accidentally detached from the floor head, is reduced.

[0042] The pivot bearing for the handlebar's pivoting is positioned near the joint assembly, allowing the dirty fluid tank assembly to be removed from the floor head at an angle. This makes it easy for the operator to remove the dirty fluid tank assembly.

[0043] In one embodiment, a removable tank for cleaning fluid is attached to the support rod. The cleaning fluid from the tank is supplied to the floor to be cleaned either directly or via the cleaning tools. The arrangement of the tank for cleaning fluid on the support rod results in optimized use of space. This results in an optimized center of gravity distribution. For the same reason, it is advantageous to attach a battery to the support rod. The battery provides electrical power to an electrical load on the floor cleaning machine.

[0044] It is advantageous if the battery device and a tank device for cleaning fluid are positioned on the same side of the support rod device. This results in a structurally simple design with optimized mass distribution.

[0045] For the same reason, it is advantageous if the side on which the battery device and the tank device for cleaning fluid are located faces away from the operator side of the support rod device. This also allows for a large pivoting angle range for the support rod device relative to the floor to be cleaned. The support rod device can be implemented on the operator side with relatively small transverse dimensions, thus achieving a large pivoting range with an at least approximately parallel alignment to the floor to be cleaned at the maximum pivoting angle of the support rod device at the floor head.

[0046] It is particularly advantageous if the battery unit or a housing for the battery unit forms a mounting area and / or a holding area for the cleaning fluid tank. This results in optimized space utilization and minimizes the number of required components.

[0047] In one embodiment, the tank device for cleaning fluid has a cutout into which at least a portion of a battery device and / or a housing for the battery device is immersed when the tank device for cleaning fluid is seated on the holding rod device. This allows a holder with a form-fitting region for the tank device for cleaning fluid to be easily realized.It is advantageous if at least one of the following is provided: the tank device for cleaning liquid has a bottom side which faces the base head when the tank device for cleaning liquid is seated on the holding rod device, and the cutout is arranged on the bottom side; the cutout is open to a front side of the tank device for cleaning liquid, wherein the front side faces away from a holding rod of the holding rod device when the tank device for cleaning liquid is seated on the holding rod device.

[0048] For the same reason, it is advantageous if the tank device for cleaning fluid has, in the region of the cutout, a first web region, a second web region spaced apart from the first web region, and a third web region connected to the first web region and the second web region, wherein the cutout lies between the first web region, the second web region, and the third web region. This results in a structurally simple design for fixing the tank device for cleaning fluid to the retaining rod device.

[0049] It is particularly advantageous if the third web region is positioned between the battery device or a housing for the battery device and a support rod of the support rod device when the tank device for cleaning fluid is located on the support rod device. This allows for a particularly simple, form-fitting fixation in all transverse directions to a longitudinal direction of the support rod device.

[0050] In one embodiment, an electronics box with a circuit device is mounted on the support rod device. This results in optimized use of space. In particular, at least one of the following is provided: the electronics box is mounted on a side facing away from a side on which a tank device for cleaning fluid and / or a battery device is mounted.

[0051] This results in a simple, constructive design with effective use of space.

[0052] It is particularly advantageous if a supply device is provided for supplying cleaning fluid from a tank device for cleaning fluid to a floor to be cleaned and / or to the first cleaning tool and / or to the second cleaning tool. In particular, the tank device for cleaning fluid is located on the support rod device. The supply device then ensures the supply of cleaning fluid from the support rod device (from the tank device) to the floor head.

[0053] Good maneuverability and ease of use for the operator is achieved if the support rod device includes a handlebar. The handlebar has, for example, a first arm and a second arm, each of which can be grasped by the operator's gripping hand.

[0054] It is particularly advantageous if at least one suction bar is arranged on the floor head, which is fluidly connected to the blower device. The suction bar allows the floor to be cleaned to be exposed to the suction flow of the blower device, and a dirty fluid can be sucked off, particularly behind the cleaning tools, and coupled into the dirty fluid tank device on the floor head.

[0055] The following description of preferred embodiments, in conjunction with the drawings, serves to explain the invention in more detail. Figure 1 shows a partial side view of an embodiment of a floor cleaning machine according to the invention (without the articulation device and with the housing partially removed);

[0056] Figure 2 is a perspective view of the floor cleaning machine according to Figure 1, wherein a dirt fluid tank device is removed from a floor head (in comparison to Figure 1, the joint device is shown and the housing is complete in the area of ​​a battery device);

[0057] Figure 3 is an enlarged view of the base head according to Figure 2;

[0058] Figure 4 shows a further partial view of the floor cleaning machine according to Figure 1;

[0059] Figure 5 shows a further partial view of the floor cleaning machine according to Figure 1;

[0060] Figure 6 is a partial view of the floor cleaning machine in the area of ​​a holding rod device with the housing removed (similar to Figure 1);

[0061] Figure 7 is a plan view in the direction A according to Figure 6;

[0062] Figure 8 is a sectional view of a portion of the floor cleaning machine of Figure 1 taken along line 8-8 of Figure 7; and

[0063] Figure 9 is a sectional view taken along line 9-9 of Figure 1.

[0064] An embodiment of a floor cleaning machine according to the invention, which is shown in the figures and designated by 10, is used in particular for cleaning hard floors. It comprises a floor head 12 and a support rod device 14. The support rod device 14 is hinged to the floor head 12 via a hinge device 16 (see Figures 2 and 3).

[0065] Cleaning tools are arranged on the floor head 12. This will be described further below. The support rod device 14 serves to guide the floor cleaning machine 10 across a (walkable) floor 18 (see Figure 2) by a standing operator who stands on the floor 18 and faces an operator side 20 (see Figure 2) of the floor cleaning machine 10 and, in particular, the support rod device 14.

[0066] The floor head 12 comprises a floor head body 22 (tool deck). The floor head body 22 has a bottom side 24 and a top side 26. A support plane 28 is assigned to the floor head 12. The support plane 28 is defined by a plurality of support wheels 30 and the cleaning tools.

[0067] During operation of the floor cleaning machine 10, the floor cleaning machine 10 is supported on the floor 18 to be cleaned by the floor head 12 as a whole, via the support wheels 30 (Figures 1 and 4) and the cleaning tools. If the floor 18 is level, then during cleaning operation of the floor cleaning machine 10, the installation plane 28 coincides with the floor 18.

[0068] The underside 24 of the base head body 22 faces the installation plane 28.

[0069] The floor head 12 has a front end 32 and a rear end 34 on the floor head body 22. It also has a first side end 36 and an opposite second side end 38. Between the front end 32 and the rear end 34, the floor head 12 (the floor head body 22) has a longitudinal axis 40. The longitudinal axis 40 is in particular parallel to a forward travel direction 42 of the floor head 12 (the floor cleaning machine 10) in a cleaning operation.

[0070] The base head 12 (the base head body 22) is assigned a transverse axis 44 which is perpendicular to the longitudinal axis 40.

[0071] The base head 12 (the base head body 22) is also assigned a height axis 46 (Figure 1). The height axis 46 is perpendicular to the installation plane 28. The longitudinal axis 40 and the transverse axis 44 are each perpendicular to this height axis 46.

[0072] During operation of the floor cleaning machine 10, the operator is positioned behind the rear end 34 of the floor head 12 and faces the operator side 20.

[0073] A first disc holder 48 and a second disc holder 50 are mounted on the base head 12. The first disc holder 48 is mounted on the base head body 22 for rotation about a first axis of rotation 52. The first axis of rotation 52 is perpendicular to the installation plane 28.

[0074] The second disc holder 50 is mounted on the base head body 22 for rotation about a second rotation axis 54. The second rotation axis 54 is oriented transversely to the installation plane 28.

[0075] A first cleaning tool 56 is mounted on the first disc holder 48. It is rotatable via the rotation of the first disc holder 48. A second cleaning tool 58 is mounted on the second disc holder 50. The second cleaning tool 58 is rotatable via the second disc holder 50.

[0076] It is intended that the first cleaning tool 56 and the second cleaning tool 58 rotate in opposite directions to each other. In one embodiment, the first cleaning tool 56 and the second cleaning tool 58 are inclined with an effective plane relative to the installation plane 28. A typical angle of inclination is, for example, in the range between 2° and 10°, and in particular approximately 5°. This generates propulsion during cleaning operation of the floor cleaning machine 10, with the arrangement being such that propulsion is generated in the forward travel direction 42. This facilitates guidance and maneuvering for an operator over a floor 18 to be cleaned.

[0077] This inclination of the effective plane relative to the installation plane 28 can generally be achieved by orienting the first rotation axis 52 and the second rotation axis 54 at a corresponding acute angle to the installation plane 28. Corresponding axes of rotation of the first cleaning tool 56 and the second cleaning tool 58 then coincide with the first rotation axis 52 and the second rotation axis 54, respectively.

[0078] In an alternative embodiment, the associated rotational axis of the first cleaning tool 56 rotates on an (imaginary) conical surface with the first rotational axis 52 as the conical axis, and the associated rotational axis of the second cleaning tool 58 rotates on an (imaginary) conical surface with the second rotational axis 54 as the conical axis. The inclination angles of the effective planes correspond to the conical angles of the conical surface.

[0079] An effective area of ​​the first cleaning tool 56 and an effective area of ​​the second cleaning tool 58 (indicated in Figure 1 by the reference numeral 60) protrude from the floor head body 22 with respect to the underside 24, so that they can act on a floor 18 to be cleaned.

[0080] The first cleaning tool 56 and the second cleaning tool 58 are each designed as a disc tool, in particular as a scrubbing disc. In one embodiment, the first cleaning tool 56 and the second cleaning tool 58 are each brush tools, and the effective area 60 is accordingly formed by the effective area of ​​brushes (bundles of bristles).

[0081] In principle, it is also possible for the first cleaning tool 56 or the second cleaning tool 58 to have textile active areas or for a cleaning tool 56, 58 to have both brush active areas and textile active areas.

[0082] The floor head body 22 has a first corner region 62 at the rear end 34 toward the second side end 38. It has a second corner region 64 at the first side end 36 at the rear end 34. A drive device for the disc holders 48, 50 is arranged at the second corner region 64. This drive device comprises one, and in particular precisely one, drive motor 66.

[0083] In one embodiment, the drive motor 66 (see Figure 4) is arranged vertically on the base head body 22; it has a motor axis 68 (drive axis 68) oriented parallel or at a small acute angle (in particular less than or equal to 10°) to the vertical axis 46. The motor axis 68 is oriented transversely and in particular perpendicularly or at an angle of less than or equal to 10° to the installation plane 28.

[0084] A torque transmission device 70 is coupled to the drive motor 66 in a torque-effective manner. The torque transmission device 70 transmits the torque of the drive motor 66 to the first disc holder 48 and the second disc holder 50, and thus to the cleaning tools 56, 58.

[0085] The torque transmission device 70 is positioned on the upper side 26 of the base head body 22. In one embodiment, the torque transmission device 70 comprises a first gear 72, which is directly coupled to the drive motor 66 and is driven in rotation directly by the drive motor 66.

[0086] The first disc holder 48 is torque-effectively connected to the first gear 72 via a first belt drive 74.

[0087] A second gear 76 is also provided, which is torque-effectively coupled to the first gear 72. The second gear 76 is directly driven in its rotational movement by the first gear 72.

[0088] The second disc holder 50 is torque-effectively coupled to the second gear 76 via a second belt drive.

[0089] This design of the torque transmission 70 causes a counter-rotation of the first disc holder 48 and the second disc holder 50, with a single drive motor 66 being provided at the second corner region 64 for this purpose.

[0090] The torque transmission device 70 is flat. It is positioned in a gear housing 80 (see Figure 3), which is positioned on the top side 26 of the base head body 22.

[0091] The transmission housing 80 comprises a first branch 82, in which the first belt drive 74 is positioned, and a second branch 84, in which the second belt drive 78 is positioned. This second branch 84 is indicated in Figure 4.

[0092] Between the first branch 82 and the second branch 84 lies a free space 86 (see, for example, Figure 3). In this free space 86, the joint device 16 is mounted on the ground head body 22 and connected thereto. In one embodiment, a bar 87 is located on the ground head body 22 in front of the front end 32. This bar 87 defines the frontmost region of the ground head 12 with respect to the forward direction of travel 42. It represents a type of bumper to prevent the ground head 12 from striking objects, walls, etc., or to cushion such impacts. The bar 87 is, in particular, made of an elastic material and / or is elastically mounted.

[0093] The joint device 16 is designed as a column and extends away from the base head body 22 in a direction parallel to the vertical axis 46. It is firmly connected to the base head body 22.

[0094] In one embodiment, the articulation device 16 comprises a first holder 88. This first holder 88 is mounted on the floor head body 22.

[0095] A first joint 90 is located on the first holder 88. The first joint 90 is a pivot joint with a first pivot axis 92. The first pivot axis 92 is parallel to the installation plane 28. It is transverse and in particular perpendicular to the longitudinal axis 40. It is parallel to the transverse axis 44. It is transverse and in particular perpendicular to the vertical axis 46. It is transverse and in particular perpendicular to the forward direction of travel 42.

[0096] The first joint 90 enables the holding rod device 14 to be pivoted relative to the floor head 12, by means of which a distance of the operator side 20 from the floor 18 can be varied.

[0097] A second holder 94 is located on the first joint 90. A second joint 96 is located on the second holder 94.

[0098] The second joint 96 is a pivot joint with a second pivot axis 98. The second pivot axis 98 is transverse and in particular perpendicular to the first pivot axis 92. The second joint 96 is connected to the first joint 90 in a rotationally fixed manner with respect to the first pivot axis 92, so that it participates in the pivoting movement about the first pivot axis 92.

[0099] Relative to the height axis 46, the second joint 96 is positioned above the first joint 90.

[0100] The second joint 96 is pivotally connected to the holding rod device 14.

[0101] The holding rod device 14 is thereby pivotable on the joint device 16 about the second pivot axis 98 and about the first pivot axis 92 relative to the floor head 12.

[0102] Due to the pivotability about the first joint 90, the orientation of the second pivot axis 98 to the installation plane 28 changes. The second pivot axis 98 moves within a plane which is perpendicular to the installation plane 28.

[0103] The position of the first pivot axis 92 relative to the installation plane 28 remains the same.

[0104] The joint device 16 provides a cardanic joint for linking the holding rod device 14 to the base head 12.

[0105] The first holder 88 is seated on the bottom head body 22 closer to the front end 32 than to the rear end 34.

[0106] In one embodiment, the first holder 88 is spaced apart from the front end 32 along the longitudinal axis 40.

[0107] The first holder 88 is located in particular centrally between the first side end

[0108] 36 and the second side end 38. A blower device 100 is arranged on the base head body 22.

[0109] The blower device 100 is located at the first corner region 62 (see Figure 4).

[0110] The blower device 100 comprises a blower motor and at least one impeller.

[0111] During operation of the floor cleaning machine 10, the blower device 100 generates a suction flow for sucking in a dirty fluid.

[0112] Dirt fluid is defined here as a fluid that can flow and be carried along in a suction stream. The dirt fluid can be liquid or dry.

[0113] A suction bar 102 (see, for example, Figure 4) is arranged on the floor head body 22. This is positioned in the area of ​​the rear end 34.

[0114] During cleaning operation of the floor head 12, the suction bar 102 rests against the floor 18 to be cleaned. It is positioned behind the cleaning tools 56 and 58 with respect to the forward direction of travel 42.

[0115] The blower device 100 is in fluid communication with the suction bar 102, which is acted upon by a suction flow.

[0116] A dirty fluid fleet behind the cleaning tools 56, 58 can then be sucked off via the suction bar 102 and the sucked-off dirty fluid is coupled into a dirty fluid tank device 104.

[0117] The blower device 100, which is located at the first corner region 62, and the drive motor 66, which is located at the second corner region 64, are spaced apart from one another with respect to the transverse axis 44. A free space 106, which will be described in more detail below, lies between them. A first column device 108 is located on the base head body 22, extending in an extension direction parallel to the vertical axis 46. The first column device 108 comprises the blower device 100. It comprises a first column housing 110 in which the blower device 100 is positioned.

[0118] Furthermore, a second column assembly 112 is arranged on the base head body 22 at the second corner region 64. This assembly comprises a second column housing 114. The second column assembly 112 comprises the drive motor 66, which is positioned in the second column housing 114.

[0119] A third column assembly 116 is also positioned on the base head body 22, which is spaced apart from the first column assembly 108 and spaced apart from the second column assembly 112. The third column assembly 116 is the joint assembly 16.

[0120] The third column device 116 is located, as already mentioned above, centrally between the first side end 36 and the second side end 38.

[0121] The free space 106, which is also a free space between the first column device 108 and the second column device 114 in the region of the rear end 34, is a movement space for the holding rod device 14, in particular when pivoting about the first pivot axis 92.

[0122] The joint device 16 is designed such that it can be moved in the free space 106, in particular with the second holder 94 and the second joint 96.

[0123] This makes it possible to achieve small angles between the support rod assembly 14 and the floor 18. This results in particularly good accessibility under fittings or the like. At a small angle to the floor 18, the overall height of the device along the vertical axis 46 is determined by the height of the floor head 12. In a side view, with the dirty fluid tank assembly 104 removed, the floor head 12 has an L-shape with the floor head body 22 and the column assemblies 108, 112 projecting transversely thereto.

[0124] The first column assembly 108, the second column assembly 112, and the third column assembly 116 lie on a triangle 118 (see Figure 2). The triangle 118 has a base 120, on which the first column assembly 108 and the second column assembly 112 lie. The triangle 118 has a vertical axis perpendicular to the base 120, which is in particular parallel to the longitudinal axis 40. The third column assembly 116 lies on this vertical axis.

[0125] Triangle 118 is isosceles.

[0126] A movement space for the pivotability of the holding rod device 14 about the first pivot axis 92 lies on the height axis of the triangle 118.

[0127] The second pivot axis 98 lies in a plane which contains this height axis and is perpendicular to the installation plane 28.

[0128] The dirty fluid tank device 104 is a unit that can be removed as a whole from the floor head 12 and fixed to the floor head 12. It collects dirty fluid sucked in by the blower device 100, which is sucked away in particular from the floor 18 to be cleaned.

[0129] In one embodiment, a separator is integrated into the dirty fluid tank device 104.

[0130] The dirty fluid tank assembly 104 includes a container 122 and an openable lid 124. In particular, the lid 124 is removable from the container 122 as a whole to allow a large access area to the container 122. In one embodiment, the lid 124 is secured to the container 122 with a releasable snap-in connection 126.

[0131] The dirty fluid tank device 104 has a bottom side 128. This lies on the container 122. When the dirty fluid tank device 104 is fixed to the base head 12, the bottom side 129 of the dirty fluid tank device 104 faces the top side 26 of the base head body 22.

[0132] The dirty fluid tank assembly 104 further has a top surface 130, which faces away from the bottom surface 128. The top surface 130 lies against the cover 124.

[0133] The dirty fluid tank device 104 further has a front side 132 and a rear side 134 facing away from the front side.

[0134] Between the front side 132 and the rear side 134, the dirty fluid tank assembly 104 has a first lateral side 136 and an opposite second lateral side 138.

[0135] The first lateral side 136 is located at the first side end 36 and the second lateral side 138 is located at the second side end 38 of the bottom head 12 when the dirty fluid tank device 104 is fixed to the bottom head 12.

[0136] The external shape of the dirty fluid tank device 104 is adapted to the shape of the base head 12 with the base head body 22. In one embodiment (see Figure 9), the first lateral side 136 is set back toward the first side end 36. The same applies to the second lateral side 138 toward the second side end 38. As a result, a region 139 (Figure 9) is formed between the base head body 22 and the dirty fluid tank device 104 on the base head body 22. This allows for improved underride capability. Relative to the outer envelope, the dirty fluid tank device 104 has at least approximately a cuboid shape.

[0137] A handle 140 is arranged on the container 122, particularly directly below the lid 124. This handle is mounted on a pivot bearing 144, pivotable about a pivot axis 142.

[0138] In one embodiment, the pivot bearing 144 includes parts located on the first lateral side 136 and the second lateral side 138.

[0139] When the dirty fluid tank device 104 is fixed to the base head 12, the pivot axis 142 is parallel to the first pivot axis 92 of the articulation device 16. It is parallel to the installation plane 28.

[0140] The pivot axis 142 is oriented transversely to the first lateral side 136 and transversely to the second lateral side 138.

[0141] The handle bar 140 comprises opposing webs 146a, 146b, each of which is connected to the pivot bearing 144. The webs 146a, 146b are connected to each other via a connecting web 148.

[0142] The handle bar 140 has a U-shaped configuration, with the webs 146a, 146b corresponding to upstrokes of the U.

[0143] The connecting web 148 is positioned on the front side 132 of the dirty fluid tank device 104 in the non-pivoted position of the handle bar 140 (see Figure 3).

[0144] A gripping recess 150 is arranged on the front side 132 of the container 122 (and / or the lid 124). Through the gripping recess 150, an operator can access the connecting web 148 and thus the handle bar 140 in order to pivot it about the pivot axis 142. In one embodiment, the container 122 has a groove 152. When not pivoted, the handle bar 140 is positioned in this groove 152 in a somewhat recessed manner, so that it does not protrude or significantly protrude beyond the front side 132 and the lateral sides 136, 138.

[0145] When the dirty fluid tank device 104 is fixed to the base head 12 (see Figure 1), the pivot bearing 144 is spaced apart from the installation plane 28 in the vertical axis 46. The pivot bearing 144 is positioned in the region of the joint device 16 on the base head 12.

[0146] The dirty fluid tank device 104 with the handle 140 is arranged and designed such that an operator, when the dirty fluid tank device 104 is fixed to the floor head 12, can pull the dirty fluid tank device 104 upwards and forwards away from the floor head 12 in a direction 154 (see Figure 1) and can thus remove it from the floor head 12.

[0147] The dirty fluid tank device 104 has a cutout 156 which is adapted to the joint device 16 and its position on the base head body 22. When the dirty fluid tank device 104 is inserted on the base head 12, the cutout 156 corresponds to the free space 106.

[0148] The cutout 156 is continuous between the bottom 128 and the top 130 of the dirty fluid tank device 104. It is open towards the rear 134.

[0149] The cutout 156 is arranged on both the lid 124 and the container 122.

[0150] The dirty fluid tank device 104 comprises a first web region 158. The first lateral side 136 is located on the first web region 158. The dirty fluid tank device 104 further comprises a second web region 160. The second lateral side 138 is located on the second web region 160. The first web region 158 and the second web region 160 are spaced apart from one another.

[0151] The back side 134 lies on the first web area 158 and the second web area 160.

[0152] The dirty fluid tank assembly 104 further includes a third web portion 162. The third web portion 162 is oriented transversely to the first web portion 158 and the second web portion 160. It is connected to both the first web portion 158 and the second web portion 160.

[0153] The dirty fluid tank device 104 has at least approximately the shape of a U due to the web regions 158, 160, 162, wherein the first web region 158 and the second web region 160 correspond to upstrokes of the U.

[0154] The web areas 158, 160, 162 encompass both the container 122 and the lid 124.

[0155] The cutout 156 is formed between the first web region 158 and the second web region 160 and the third web region 162. The third web region 162 forms a boundary of the cutout 156 toward the front side 132.

[0156] A receiving volume for dirty fluid is formed within the web areas 158, 160, 162 and at the container part 122 of these web areas 158, 160, 162.

[0157] A connection 164 for the fluid-effective connection of the blower device 100 is arranged on the second web region 160.

[0158] In one embodiment, a mating connection 166 of the blower device 100, which is positioned on the base head body 22, lies on an inclined surface 168 (see Figure 3). The second web region 160 is provided in the region of the connection 164 with a correspondingly adapted inclined surface 170, on which the connection 164 lies.

[0159] When the dirty fluid tank device 104 is properly inserted into the base head 12, the mutually adapted inclined surfaces 170, 168 automatically create a fluid-effective connection between the connection 164 and the mating connection 166 with corresponding fluid tightness.

[0160] An overlap region 172 is arranged on the first web region 158. When the dirty fluid tank device 104 is seated on the base head 12, the first web region 158 is aligned with the second column device 112. The overlap region 172 covers a portion of the second column housing 114. A transition 174 (see Figure 1) from the dirty fluid tank device 104 to the second column housing 114 is flush and, in particular, edge-free (see Figure 1) when the dirty fluid tank device 104 is seated on the base head 12.

[0161] Accordingly, the second web region 160 is provided with an overlap region 176, which covers a partial region of the first column housing 110, on which in particular the counter connection 166 is located, in order to achieve an edge-free transition or a flush transition.

[0162] When the dirty fluid tank device 104 is fixed to the floor head 12, the hinge device 16 is positioned in the cutout 156.

[0163] The cutout 156 enables the dirty fluid tank device 104 to be inserted into the floor head body 22 in a direction 178 (see Figure 2), which includes a directional component parallel to the longitudinal axis 40 and from the front end 32 to the rear end 34, and to be pushed over the joint device 16. When the dirty fluid tank device 104 is fixed to the floor head 12, the cutout 156 continues from the joint device 16 to the rear end 34 to the free space 106 in order to provide the freedom of movement for the pivotability of the holding rod device 14 on the joint device 16.

[0164] The dirty fluid tank device 104 has a relatively large receiving volume and is adapted to the design of the floor head body 22 with the column devices 108, 112 and 116 (of the joint device 16).

[0165] The dirty fluid tank device 104 can be inserted into the base head body 22 with a component parallel to the direction 178 and can be removed in an opposite direction thereto and in particular in the direction 154 (which has a component antiparallel to the direction 178 and a component parallel to the height axis 46).

[0166] The base head body 22 with its upper side 26 and in particular the gear housing 80 forms a contact surface and a holding surface for fixedly holding the dirty fluid tank device 104 on the base head 12. These contact areas / holding areas provide, in particular, downward support relative to the vertical axis 46.

[0167] The first column device 108 and the second column device 112 form a contact area / holding area with respect to the rear end 34.

[0168] In particular, a positive and / or non-positive connection is provided, by which the dirty fluid tank device 104 is fixed to the base head 12. After fixation, this connection requires a certain amount of force to be able to remove the dirty fluid tank device 104 in the direction 154 from the base head 12 and, in particular, to prevent accidental detachment. The holding rod device 14 comprises a holding rod 180. The holding rod 180 has a longitudinal extension axis 182. It is connected distally to the joint device 16 and, in the process, to the second joint 96.

[0169] Proximally on the support rod 180 there is a handlebar 184 for an operator.

[0170] In one embodiment, a height of the support rod device 14 is adjustable as a distance between a proximal end of the support rod 180 and the link 184, in particular via a displaceable link.

[0171] The handlebar 184 has arms 186a, 186b. These can be grasped by an operator with the gripping hands.

[0172] A display and / or operating device 188 is arranged between the arms 186a, 186b.

[0173] A housing device, designated as a whole by 190, is mounted on the support rod 180. In the described embodiment, the support rod 180 is connected to the joint device 16, and the housing device 190 is held by the support rod 180. The support rod 180 is therefore an essential structural component of the floor cleaning machine 10.

[0174] It is also possible, in principle, for the housing assembly 190 to be connected to the joint assembly 16, and for a corresponding support rod to be attached to the housing assembly. In this example, the housing assembly is the essential structural component ("backbone") of the floor cleaning machine 10.

[0175] The housing device 190 is positioned between the link 184 and the second joint 96. It is designed such that it does not significantly restrict the mobility of the support rod device 14 relative to the base head 12.

[0176] A battery device 192 is mounted on the support rod device 14. The battery device 192 is positioned above the base head 12. In one embodiment, the battery device 192 is mounted on a holder 194. The holder 194 is connected to the support rod 180.

[0177] The support rod 180 has a side 196 facing the operator side. The battery device 192 is located on a side 198 facing away from the side 196.

[0178] When the holding rod device 14 is arranged upright (see Figure 1), the battery device 192 points forward.

[0179] The housing device 190 has a housing part 200 within which the battery device 192 is positioned in a protected manner. (In Figure 1, this housing part 200 is removed.)

[0180] The housing part 200 is closed both laterally and on a bottom side 202 towards the base head 12.

[0181] A tank device 206 for cleaning fluid is removably mounted on a holder 204 (see Figure 9) on the support rod device 14. The cleaning fluid is, in particular, pure water, optionally with a surfactant cleaning agent additive.

[0182] The tank device 206 is removably mounted on the support rod device 14 between the underside 202 of the housing device 190 and the handlebar 184. The tank device 206, like the battery device 192, is mounted on the side 198 and faces away from the operator side 20.

[0183] At least a portion 208 of it is positioned above the battery device 192.

[0184] The tank device 206 is a unit that can be removed as a whole from the floor cleaning machine 10 (from the support rod device 14 and thereby from the holder 204). It has a bottom side 202 facing the floor head 12. The tank device 206 has a cutout 210 in the area of ​​the bottom side 202, which is positioned below the partial area 208. The cutout 210 is designed such that a partial area of ​​the battery device 192 can be immersed therein.

[0185] In the area of ​​the cutout 210, the tank device 206 has a first web area 212, a second web area 214 opposite the first web area, and a third web area 216 which is connected to the first web area 212 and the second web area 214.

[0186] The tank device 206 has an approximately U-shaped configuration at the cutout 210, with the first web region 212 and the second web region 214 forming upstrokes of the U.

[0187] The cutout 210 is open to a front side 218 of the tank device 206.

[0188] A receiving space 220 (see Figure 9) lies between the battery device 192 and the support rod 180. When the tank device 206 is fixed to the support rod device 14, the third web region 216 lies in the receiving space 220.

[0189] The cutout 210 of the tank device 206 is located at a holding area 222 of the tank device 206. The tank device 206 can be plugged onto a housing part 200, in which the battery device 192 is located, via the holding area 222. This allows for a positive locking fixation, at least in transverse directions to the longitudinal axis 182 of the holding rod 180.

[0190] In one embodiment, a further connection, such as a force-locking connection or a locking connection, may be provided with the holding rod 180 to achieve fixation in a direction parallel to the longitudinal axis 182. The tank device 206 is formed by the holding region 222 and the partial region 208. In particular, the holding region 222 is connected in one piece or in one part to the partial region 208. This results in a large receiving space for cleaning fluid.

[0191] In one embodiment, a grip recess 224 for grasping the tank device 206 as a unit is arranged on the partial area 208.

[0192] The floor cleaning machine 10 comprises a supply device 226 for supplying cleaning fluid to the floor 18 to be cleaned. In particular, cleaning fluid is supplied from the tank device 206 to the cleaning rollers 56, 58. The supply device 226 is connected to the tank device 206. A corresponding connection is provided on the holder 204, so that, particularly when the tank device 206 is correctly fixed to the holder 204, a fluid-effective connection (in particular with controllability of the cleaning fluid supply to the floor head 12) is automatically established.

[0193] In one embodiment, parts of the feed device 226, which are guided from the housing device 190 to the base head 12, are arranged within the joint device 16 (see Figure 1; the joint device 16 is not shown there).

[0194] A pump is provided to convey cleaning fluid from the tank device 206 via the supply device 226 to the base head 12, or the conveyance is gravity-driven, and a solenoid valve, for example, is provided for control. In particular, a delivery rate can be adjusted via the display / operating device 188.

[0195] The external shape of the tank device 206 is adapted to the housing part 200, so that, in particular, a flush continuation is achieved when the tank device 206 is fixed to the support rod device 14. The support rod device 14 comprises an electronics box 228 in which a circuit device is arranged in a protected manner.

[0196] In one embodiment, (at least) one circuit board with corresponding electrical / electronic circuit components is arranged in the electronics box 228.

[0197] In particular, the electronics box 228 is located on the support rod 180 facing away from the battery device 192 and away from the tank device 206.

[0198] In one embodiment, rollers 230 are arranged on the floor head 12 in the region of the rear end 34. These serve to transport the floor cleaning machine 10 outside of a cleaning operation.

[0199] In one embodiment, the support wheels 30 are positioned between them. The rollers 230 are spaced apart from the installation plane 28.

[0200] The floor cleaning machine 10 according to the invention functions as follows:

[0201] During a cleaning operation, the tank device 206 is located on the support rod device 14 and the dirty fluid tank device 104 is located on the floor head 12.

[0202] An operator operates the floor cleaning machine 10 via the holding rod device 14 with the handlebar 184 and stands behind the floor cleaning machine 10 on the operator side 20.

[0203] The cleaning tools 56, 58 are driven in their counter-rotation by the drive motor 66. Due to their inclination relative to the support plane 28, they exert a forward thrust. An operator can adjust the pivot angles at the first joint 90 and the second joint 96 to suit the machining process and, in particular, also perform steering.

[0204] The cleaning tools 56, 58 rotate and act on the floor 18 to be cleaned.

[0205] Via the supply device 226, cleaning fluid is applied from the tank device 206 to the floor 18 to be cleaned and, in particular, initially to the cleaning tools 56, 58.

[0206] A dirty fluid is removed via the suction bar 102. The corresponding suction flow is generated by the blower device 100. Dirty fluid is coupled into the dirty fluid tank device 104 at the floor head 12.

[0207] The necessary electrical energy, in particular for the drive motor 66 and the blower device 100, is provided by the battery device 192.

[0208] After completion of a cleaning process, an operator can remove the dirty fluid tank device 104 in the direction 154 via the handle 140.

[0209] In the solution according to the invention, both the blower device 100 and the dirty fluid tank device 104 are arranged on the floor head 12. This results in short fluid paths for the dirty fluid. Furthermore, the center of gravity is optimized.

[0210] The dirty fluid tank device 104 is provided with the cutout 156.

[0211] This allows, on the one hand, the dirty fluid tank device 104 to be provided with a large storage volume and, on the other hand, an optimized positioning on the floor head 12 results without hindering the mobility of the holding rod device 14 on the joint device 16.

[0212] The blower device 100 and the drive motor 66 are positioned at the edge of the floor head 12 by the arrangement at the corner regions 64 and 62, respectively, such that they do not provide any significant limitations for the receiving volume of the dirty fluid tank device 104.

[0213] Through the corresponding column devices 108, 112 with the corresponding column housings 110, 114, they also provide contact areas / holding areas for fixing the dirty fluid tank device 1041 to the base head 12.

[0214] The result is a compact and space-saving design.

[0215] The arrangement of the battery device 192 on the support rod device 14 and the arrangement of the tank device 206 on the support rod device 14, with the battery device 192 below the tank device 206, results in an optimized center of gravity (with a low center of gravity). In particular, the tank device 206 is arranged on the same side as the battery device 192 on the support rod device 14. They can be pivoted together with the support rod device 14 when pivoting on the joint device 16.

[0216] This results in a large range of motion for the pivoting of the support rod device 14 (with battery device 192 and tank device 206) to the floor head 12. This, in turn, results in high maneuverability of the floor cleaning machine 10 and good adaptability to the special cleaning requirements with "obstacles" on a floor 18 to be cleaned.

[0217] Floor cleaning machine

[0218] Ground head

[0219] Holding rod device

[0220] Joint device

[0221] Floor

[0222] Operator side

[0223] Ground head body

[0224] bottom

[0225] Top

[0226] Installation level

[0227] support wheel

[0228] front end

[0229] back end first page end second page end

[0230] Longitudinal axis

[0231] Forward direction

[0232] transverse axis

[0233] Height axis first disc holder second disc holder first rotation axis second rotation axis first cleaning tool second cleaning tool

[0234] Effective area first corner area second corner area

[0235] drive motor

[0236] Motor axle

[0237] Torque transmission device first gear first belt drive second gear second belt drive

[0238] Gearbox housing first branch second branch

[0239] Free space

[0240] Bar first holder first joint first pivot axis second holder second joint second pivot axis

[0241] Blower device

[0242] Suction bar

[0243] Dirty fluid tank system

[0244] Free space first column device first column housing second column device second column housing third column device

[0245] triangle

[0246] base

[0247] container

[0248] Lid

[0249] Snap connection

[0250] bottom

[0251] Top

[0252] front

[0253] Rear first lateral side second lateral side handle area pivot axis pivot bearing a, 146b web

[0254] connecting bridge

[0255] recessed grip

[0256] Nut

[0257] Direction

[0258] Section first web area second web area third web area connection

[0259] Counter connection

[0260] inclined surface

[0261] inclined surface

[0262] Coverage area

[0263] transition

[0264] Coverage area towards support rod

[0265] Longitudinal axis of handlebar a, 186b arm

[0266] Display / control device Housing device Battery device

[0267] holder

[0268] Page

[0269] Side housing part

[0270] bottom

[0271] holder

[0272] Tank facility for cleaning fluid

[0273] Sub-area

[0274] Section first bridge area second bridge area third bridge area

[0275] front

[0276] recording room

[0277] Holding area

[0278] recessed grip

[0279] Feeding device

[0280] Electronics box

[0281] role

Claims

Patent claims 1. A floor cleaning machine comprising a floor head (12) which is assigned a support plane (28) for a floor (18) to be cleaned, a first disc holder (48) and a first cleaning tool (56), wherein the first disc holder (48) is arranged on the floor head (12) and holds the first cleaning tool (56) and is driven to rotate about a first axis of rotation (52) during operation of the floor cleaning machine, a second disc holder (50) and a second cleaning tool (58), wherein the second disc holder (50) is arranged on the floor head (12) and holds the second cleaning tool (58) and is driven to rotate about a second axis of rotation (54) during operation of the floor cleaning machine, wherein the first axis of rotation (52) of the first disc holder (48) and the second axis of rotation (54) of the second disc holder (50) are each oriented transversely to the support plane (28), a holding rod device (14),which is movably connected to the floor head (12) via a joint device (16), a blower device (100) which generates a suction flow during operation of the floor cleaning machine, and a dirty fluid tank device (104) for receiving dirty fluid, characterized in that the blower device (100) is arranged on the floor head (12) and that the dirty fluid tank device (104) is removably mounted on the floor head (12).

2. Floor cleaning machine according to claim 1, characterized in that the floor head (12) has a floor head body (22) on which the joint device (16) is seated, wherein the floor head body (22) in particular has a plate-shaped region.

3. Floor cleaning machine according to claim 1 or 2, characterized by at least one of the following: the holding rod device (14) is gimbal-mounted to the floor head (12) by the joint device (16); the joint device (16) comprises a first joint (90) with a first pivot axis (92) and a second joint (96) with a second pivot axis (98), wherein the first pivot axis (92) and the second pivot axis (98) are oriented transversely and in particular perpendicular to one another and the first pivot axis (92) is oriented parallel to the installation plane (28); a first pivot axis (92) of the joint device (16) is oriented transversely and in particular perpendicular to a forward travel direction (42) of the floor head (12).

4. Floor cleaning machine according to one of the preceding claims, characterized in that a first joint (90) of the joint device (16) is fixed directly or via a first holder (88) to a floor head body (22) of the floor head (12) and a second joint (96) of the joint device (16) is seated directly or via a second holder (94) on the first joint (90), wherein in particular the second joint (96) is positioned above the first joint (90) with respect to a height axis (46) perpendicular to the installation plane (28).

5. Floor cleaning machine according to one of the preceding claims, characterized in that the dirty fluid tank device (104) has a cutout (156), wherein when the dirty fluid tank device (104) is positioned on the floor head (12), the joint device (16) lies at least partially in the cutout (156).

6. Floor cleaning machine according to claim 5, characterized in that when the dirty fluid tank device (104) is fixed to the floor head (12), a first joint (90) of the joint device (16) lies within the cutout (156) such that a first pivot axis (92) lies within the cutout (156), and a second joint (96) of the joint device (16) is located such that a second pivot axis (98) of the second joint (96) lies above the first pivot axis (92) with respect to a height axis (46).

7. Floor cleaning machine according to one of the preceding claims, characterized in that a free space (106) is arranged or formed on the floor head (12) as a movement space for pivoting the holding rod device (14) relative to the floor head (12) about a first pivot axis (92), wherein the first pivot axis (92) is perpendicular to a forward travel direction (42) of the floor head (12).

8. Floor cleaning machine according to claim 7, characterized in that the free space (106) is a continuation of a cutout (156) of the dirty fluid tank device (104) when the dirty fluid tank device (104) is fixed to the floor head, wherein a continuation line is perpendicular to the first pivot axis (92).

9. Floor cleaning machine according to one of the preceding claims, characterized in that a first column device (108), a second column device (112) and a third column device (116) are positioned on a floor head body (22) of the floor head (12), wherein the first column device (108), the second column device (112) and the third column device (116) protrude transversely from the floor head body (22).

10. Floor cleaning machine according to claim 9, characterized by at least one of the following: the first column device (108) comprises the blower device (100); the second column device (112) comprises a drive device (66) for the first disc holder (48) and / or the second disc holder (50); the third column device (116) comprises the joint device (16).

11. Floor cleaning machine according to claim 9 or 10, characterized by at least one of the following: the first column device (108), the second column device (112) and the third column device (116) are each spaced apart from one another; between the first column device (108) and the second column device (112) a free space (106) is formed as a movement space for the holding rod device (14); between the first column device (108) and the third column device (116), and between the second column device (112) and the third column device (116), a receptacle for the dirty fluid tank device (104) is formed at least in a partial area; the first column device (108), the second column device (112) and the third column device (116) lie on an isosceles triangle (118), wherein the first column device (108) and the second column device (112) lie on a base (120) of the triangle (118) and the third column device (116) lie on a height axis of the triangle (118) relative to the base (120), and wherein in particular the base (120) is parallel to a first pivot axis (92) of the joint device (16) and / or the height axis of the triangle (118) is perpendicular to the first pivot axis (92).

12. Floor cleaning machine according to one of claims 9 to 11, characterized in that between the first column device (108), the second column device (112) and the third column device (116) at least a partial region of a torque transmission device (70) for transmitting a torque from a drive device (66) to the first disc holder (48) and the second disc holder (50) is arranged.

13. Floor cleaning machine according to one of claims 9 to 12, characterized in that the first column device (108) and / or the second column device (112) have or form a contact area and / or a holding area for the dirty fluid tank device (104).

14. Floor cleaning machine according to one of claims 9 to 13, characterized in that the first column device (108) is seated at a first corner region (62) of a floor head body (22) of the floor head (12) and the second column device (112) is seated at a second corner region (64) of the floor head body (22), wherein the second corner region (64) is opposite the first corner region (62).

15. Floor cleaning machine according to one of the preceding claims, characterized in that a drive device (66) for the first disc holder (48) and second disc holder (50) is arranged on a floor head body (22) of the floor head (12), in particular with at least one of the following: a common drive motor (66) is provided for the first disc holder (48) and the second disc holder (50); at least one drive motor (66) is provided, which is arranged upright on the floor head body (22) with a motor axis (68) which is oriented transversely and in particular perpendicularly or at an angle of at most 10° to the perpendicular to the installation plane (28).

16. Floor cleaning machine according to one of the preceding claims, characterized in that a gear housing (80) is arranged on a floor head body (22) of the floor head (12), in which gear housing a torque transmission device (70) is positioned, and in that an upper side of the gear housing (80) forms a contact area and / or a holding area for the dirty fluid tank device (104) when the dirty fluid tank device (104) is fixed to the floor head (12).

17. Floor cleaning machine according to one of the preceding claims, characterized in that the dirty fluid tank device (104) has a bottom side (128), a top side (130), a front side (132), a back side (134), a first lateral side (136) and a second lateral side (138) opposite the first lateral side (136), and in that the dirty fluid tank device (104) has a cutout (156) which is continuous and open between the bottom side (128) and the top side (130), and which is open towards the back side (134).

18. Floor cleaning machine according to claim 17, characterized in that the dirty fluid tank device (104) has a first web region (158) on which the first lateral side (136) lies, a second web region (160) on which the second lateral side (138) lies and which is spaced from the first web region (158), and a third web region (162) which is connected to the first web region (158) and the second web region (160), wherein the cutout (156) is formed between the first web region (158), the second web region (160) and the third web region (162).

19. Floor cleaning machine according to claim 18, characterized by at least one of the following: the rear side (134) lies on the first web region (158) and the second web region (160); the front side (132) lies on the third web region (162); the dirty fluid tank device (104) has a U-shape in plan view with the first web region (158) and the second web region (160) each as an upstroke for the U.

20. Floor cleaning machine according to claim 18 or 19, characterized in that a connection (164) for fluid-effective connection to the blower device (100) is arranged on the first web region (158) and / or the second web region (160).

21. Floor cleaning machine according to one of claims 18 to 20, characterized in that the first web region (158) has a first overlap region (172) and / or the second web region (160) has a second overlap region (176) for a housing region on the floor head (12).

22. Floor cleaning machine according to one of the preceding claims, characterized in that the floor head (12) has a longitudinal axis (40) which extends between a front end (32) and a rear end (34) of the floor head (12), and which is parallel to a forward travel direction (42) of the floor head (12), with at least one of the following: the blower device (100) is located in the region of the rear end (34); a drive device (66) for the first disc holder (48) and the second disc holder (50) is located in a region of the rear end (34); when the dirty fluid tank device (104) is located on the floor head (12), a front side (132) of the dirty fluid tank device (104) is located on the front end (32) of the floor head (12); an insertion direction of the dirty fluid tank device (104) on the base head (12) has a directional component (178) parallel to the longitudinal axis (40) with a direction towards the rear end (34).

23. Floor cleaning machine according to one of the preceding claims, characterized by at least one of the following: the dirty fluid tank device (104) comprises a container (122) and an openable and in particular removable lid (124); a container (122) of the dirty fluid tank device (104) and a lid (124) of the dirty fluid tank device (104) have substantially the same cross-sectional shape; a pivotable handle bar (140) is located on the dirty fluid tank device (104) and in particular on a container (122) of the dirty fluid tank device (104); the dirty fluid tank device (104) has a recessed area (152) for recessedly holding a handle bar (140); on a front side (132) of the dirty fluid tank device (104) there is arranged a gripping recess (150) for gripping a handle bar (140) and in particular a pivotable handle bar (140);a pivot bearing (144) for pivoting a handle bar (140) on the dirty fluid tank device (104) is located in the region of the joint device (16) with respect to a longitudinal axis (40) of the base head (12) when the dirty fluid tank device (104) is fixed to the base head (12); 24. Floor cleaning machine according to one of the preceding claims, characterized in that a tank device (206) for cleaning liquid is removably seated on the holding rod device (14).

25. Floor cleaning machine according to one of the preceding claims, characterized in that a battery device (192) is located on the holding rod device (14).

26. Floor cleaning machine according to claim 25, characterized in that the battery device (192) and a tank device (206) for cleaning liquid are positioned on a same side of the holding rod device (14).

27. Floor cleaning machine according to claim 26, characterized in that the side (198) on which the battery device (192) and the tank device (206) for cleaning liquid are located is facing away from an operator side (20) of the holding rod device (14).

28. Floor cleaning machine according to one of claims 25 to 27, characterized in that the battery device (192) or a housing for the battery device (192) forms a contact area and / or a holding area for the tank device (206) for cleaning liquid.

29. Floor cleaning machine according to one of claims 24 to 28, characterized in that the tank device (206) for cleaning liquid has a cutout (210) in which a battery device (192) and / or a housing for the battery device (192) are immersed at least with a partial area when the tank device (206) for cleaning liquid is seated on the holding rod device (14).

30. Floor cleaning machine according to claim 29, characterized by at least one of the following: the tank device (206) for cleaning liquid has a bottom side (202) which faces the floor head (12) when the tank device (206) for cleaning liquid is seated on the holding rod device (14), and the cutout (210) is arranged on the bottom side (202); the cutout (210) is open to a front side (218) of the tank device (206) for cleaning liquid, wherein the front side (218) faces away from a holding rod (180) of the holding rod device (14) when the tank device (206) for cleaning liquid is seated on the holding rod device (14).

31. Floor cleaning machine according to claim 29 or 30, characterized in that the tank device (206) for cleaning liquid in the region of the cutout (210) has a first web region (212), a second web region (214) opposite the first web region (212), and a third web region (216) which is connected to the first web region (212) and to the second web region (214), wherein the cutout (210) lies between the first web region (212), the second web region (214) and the third web region (216).

32. Floor cleaning machine according to claim 31, characterized in that the third web region (216) is positioned between the battery device (192) or a housing for the battery device (192) and a holding rod (180) of the holding rod device (14) when the tank device (206) for cleaning liquid is seated on the holding rod device (14).

33. Floor cleaning machine according to one of the preceding claims, characterized in that an electronics box (228) with a circuit device is arranged on the holding rod device (14).

34. Floor cleaning machine according to claim 33, characterized by at least one of the following: the electronics box (228) is located on the same side as the tank device (206) for cleaning fluid and / or a battery device (192); the electronics box (228) is located at least with a partial area between a battery device (192) and a holding rod (180) of the holding rod device (14); the electronics box (228) is located at least with a partial area between a battery device (192) and a tank device (206) for cleaning fluid.

35. Floor cleaning machine according to one of the preceding claims, characterized by a supply device (226) for supplying cleaning liquid from a tank device (206) for cleaning liquid to a floor (18) to be cleaned and / or to the first cleaning tool (56) and / or to the second cleaning tool (58).

36. Floor cleaning machine according to one of the preceding claims, characterized in that the holding rod device (14) comprises a handlebar (184).

37. Floor cleaning machine according to one of the preceding claims, characterized in that at least one suction bar (206) is arranged on the floor head (12), which is fluidly connected to the blower device (100). ***

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