Floor cleaning machine with lifting handle

Abstract

A floor cleaning machine with a lifting handle includes: a lever device (60) having a proximal end (68); a guide handle (72), which is arranged on the rod device in the proximal end region and is used for guiding the floor cleaning machine on a floor (52) to be cleaned; a ground head (12); at least one cleaning roller (16) which is arranged on the floor head and is driven in rotation about a rotation axis (18) during a cleaning operation of the floor cleaning machine; a fan device (102) for generating a suction flow; the fan device is arranged in the housing, the rod device and the housing are connected with each other, and the housing or the rod device is connected with the ground head, characterized in that the housing is provided with an upper side (66) facing the guide handle and is provided with a transverse side (138) which is oriented transversely to the upper side and is adjacent to the upper side; and a lifting handle (108) for lifting the floor cleaning machine is arranged on the upper side and the transverse side.

Description

Technical Field

[0001] The present invention relates to a floor cleaning machine, which comprises: a rod device with a proximal end; a guide handle, which is arranged on the rod device in the proximal region and is used to guide the floor cleaning machine on the floor to be cleaned; a floor head; at least one cleaning roller, which is arranged on the floor head and is driven to rotate around a rotation axis during the cleaning operation of the floor cleaning machine; a fan device for generating a suction flow; and a housing in which the fan is arranged, wherein the rod device and the housing are connected to each other, and wherein the housing or the rod device is connected to the floor head. Background Art

[0002] US 2020 / 0060495 A discloses a floor cleaner having a main body on which a battery door is arranged.

[0003] US 2021 / 0186283 A discloses a brush roller for a floor cleaning device.

[0004] US 2021 / 0204780 A discloses a cleaning system having a suction shaft, a flow sensor and a dirty fluid tank.

[0005] CN 114569020 A relates to a multifunctional surface cleaning machine.

[0006] CN 115349784 A, CN 218009571 U and CN 218474551 U respectively relate to cleaning machines. Summary of the invention

[0007] The object of the present invention is to provide a floor-cleaning machine of the type mentioned at the outset which can be operated and used by an operator in a simple manner.

[0008] According to the invention, this object is achieved in the aforementioned floor cleaning machine in that the housing has a top side facing the guide handle and a lateral side oriented transversely to and adjacent to the top side, and that lifting handles for lifting the floor cleaning machine are arranged on the top side and on the lateral side.

[0009] The operator can carry the floor cleaning machine by means of the lifting handle on the housing, in particular outside the cleaning process. The lifting handle provides the operator with at least two different lifting possibilities. The operator can grasp the floor cleaning machine from the upper side of the housing and lift it up, or grasp the floor cleaning machine from the lateral side, in particular the rear side, and lift it up.

[0010] In particular, the multifunctional carrying handle can be designed to be simple in terms of design and thus offers expanded application possibilities.

[0011] In principle, the carrying handle can also be used to hang the floor-cleaning machine, in particular on a hook at a storage point.

[0012] It is particularly advantageous in terms of design if only a single carrying handle is provided, which can be gripped from the top and alternatively from the lateral side. This results in expanded possibilities.

[0013] In a structurally simple embodiment, the carrying handle comprises a bow, and in particular a single bow, which has at least one of the following: - the bow extends between a first side and an opposite second side of the housing, wherein the first side is oriented transversely to the upper side and transversely to the lateral side, and the second side is oriented transversely to the upper side and transversely to the lateral side; - the bow forms part of the upper side; - the bow forms part of the lateral side; - the bow delimits at least one handle recess which is open toward the upper side; The bracket delimits at least one handle recess which is open towards the lateral side.

[0014] As a result, the floor-cleaning machine can be constructed in a simple manner and can be lifted or hung in different ways. The floor-cleaning machine can be stored in a simple manner.

[0015] It is particularly advantageous if at least one grip recess for the fingers of the holding hand is arranged and formed on the housing, which is open toward the top and toward the lateral sides. This allows the machine to be gripped and carried in different ways and methods. In addition, a variety of suspension options are provided for storing the floor cleaning machine.

[0016] It is particularly advantageous if at least one of the following is set: - at least one handle recess or a combination of handle recesses has an L-shape or C-shape in cross section, has a first region and a second region, wherein the first region is open toward the top and the second region is open toward the lateral side and the second region is oriented transversely and in particular perpendicularly to the first region; - at least one grip recess extends between the top side and the lateral side and is in particular designed to be continuous; The at least one grip recess is adapted in its dimensions to the hand of the operator.

[0017] By means of the respective at least one handle recess and in particular by means of exactly one handle recess, a “multifunctional handle” can be realized in a simple manner for lifting and hanging the floor-cleaning device.

[0018] Advantageously, the carrying handle is designed such that the carrying handle can be grasped and gripped by moving the fingers of the holding hand upwards and alternatively by moving the fingers of the holding hand laterally. This results in an expanded range of possibilities for use.

[0019] In particular, when the housing is grasped as intended from above at the carrying handle, the palm of the grasping hand points outwardly away from the lever arrangement, whereas when the housing is grasped as intended from the side at the carrying handle, the palm of the grasping hand points toward the guide handle.

[0020] Advantageously, the guide handle projects laterally from the lever arrangement and is located in a half-space bounded by the lever arrangement, and the upper side and / or the lateral side are located in the half-space. This results in optimized operability of the floor cleaning machine for the operator.

[0021] In particular, during the intended operation of the floor cleaning machine, the operator stands on the floor to be cleaned, the floor head is placed on the floor to be cleaned, and the operator holds the floor cleaning machine at the guide handle and guides the floor cleaning machine over the floor to be cleaned via the guide handle, wherein the lateral side then faces the operator. This results in simple operability and the operator can guide the floor cleaning machine over the floor to be cleaned in a simple manner.

[0022] Advantageously, the lateral side is the rear side facing away from the front end of the floor head, wherein in particular, at least one cleaning roller is arranged in the region of the front end of the floor head. Thus, a simple structural solution is obtained.

[0023] Furthermore, it is advantageous if at least one of the following is provided: - a first side and a second side of the housing adjoin the lateral side, wherein the first side and the second side are spaced apart from one another; - the lateral sides are spaced apart from the rod arrangement; - the transverse side has an axis of extension which is at least in partial regions parallel to the axis of extension of the rod arrangement or is oriented at least in partial regions at an acute angle to the axis of extension of the rod arrangement; The front side of the housing faces away from the lateral side and the lever arrangement is fastened to the housing in the region of the front side.

[0024] This results in a structural solution that is simple in design.

[0025] In particular, with reference to the height direction, the housing is arranged above the ground head and the upper side is arranged above the fan device. This results in a structurally simple design.

[0026] Advantageously, a dirty fluid tank device is removably arranged on the housing, wherein the dirty fluid tank device can be removed via a lateral side and can be placed on the housing. This results in a structurally simple design.

[0027] In particular, a recess is provided on the housing, which forms a receptacle for the dirty fluid tank device, and the recess is open toward the lateral side. Thus, the dirty fluid tank device can be fixed on the housing in a simple manner and can be removed from the housing.

[0028] In one embodiment, the fan device is positioned on the housing above the dirty fluid tank device in the height direction. In particular, the fan device is located between the dirty fluid tank device and the guide handle. This allows an optimized suction flow guidance to be achieved and the dirty fluid can be optimally coupled into the dirty fluid tank device.

[0029] In one embodiment, the rod arrangement is connected to the housing in the region of the distal end. This results in a structurally simple design.

[0030] In one embodiment, a battery device is positioned on the housing and provides electrical energy to corresponding components of the floor cleaning machine for operation of these components.

[0031] In particular, the battery device is arranged in the region of an imaginary extension of the rod device toward the ground, thereby achieving an optimized utilization of space.

[0032] It is also advantageous if the battery device is arranged between the underside of the housing and the electronics unit, wherein the underside of the housing faces the floor head. This allows a low center of gravity for the floor cleaning machine to be achieved.

[0033] Advantageously, the housing has a lower side opposite to the upper side, the lower side facing the ground head, and the housing has at least one of the following: - With reference to the height direction, the battery unit is located closer to the ground than the fan unit; - With reference to the height direction, the fan device is positioned closer to the upper side than the battery device; - the battery arrangement is positioned on the housing adjacent to the underside; - The lower wall forms a support area for the battery arrangement.

[0034] This results in a relatively low center of gravity and at the same time optimized maneuverability. The floor head can be designed to be small in size and, in particular, provides good running capabilities under furniture and the like.

[0035] It is also advantageous if the battery device is arranged in the region of the front side of the housing facing away from the lateral side, thereby achieving an optimized utilization of space.

[0036] Furthermore, an optimal use of space is achieved if the battery arrangement extends in the height direction up to a height plane located between the bottom side and the top side of the dirty fluid tank arrangement positioned on the housing.

[0037] Furthermore, optimized space utilization is achieved if at least one of the following is present on the connecting line between the carrying handle and the underside of the battery device: - fan device; - Dirty fluid tank installation; The underside of the battery device is directed toward the ground head, wherein, in particular, the connecting line is oriented at an acute angle to the axis of extension of the rod device.

[0038] Furthermore, an optimized space utilization is achieved if an electronics unit is arranged on the housing between the battery device and the distal end of the rod device. The electronics unit is thus also arranged relatively far from the ground and is therefore less exposed to splashing water.

[0039] In one embodiment, a connection device for the dirty fluid tank device is arranged on the housing at the connection region, the connection region being assigned a height plane, on which a support for the dirty fluid tank device is provided, and which is located between the bottom side of the battery device and the top side of the battery device. This allows an optimized connection of the dirty fluid tank device. This results in a short suction path.

[0040] In an alternative embodiment, the battery device is accommodated in the region of the top side.

[0041] In particular, at least one of the following is provided: - An electronic device unit is placed between the battery device and the carrying handle; - The battery device is placed above the fan device; - a tank device for the cleaning liquid is removably mounted on the housing, in particular on an imaginary extension of the rod device; - the battery device is arranged between the electronics unit and the rod device; A receptacle for the battery device is formed in the region of the upper side of the housing, wherein a recess of the receptacle is open toward the upper side and a cover for closing the receptacle is arranged on the upper side.

[0042] In this embodiment, an optimized splash protection is achieved for the electronics unit and the battery.

[0043] Advantageously, the electronics unit is arranged on the housing on the front side, wherein the front side faces away from the lateral side, in particular the battery arrangement is positioned in the region of the bottom side of the housing, thereby achieving an optimized space utilization.

[0044] For the same reason, it is advantageous if the electronics unit is arranged on the housing opposite the dirty fluid tank arrangement.

[0045] In one embodiment, the housing has a wall which separates a first receptacle for the electronics unit from a second receptacle for the dirty fluid tank arrangement. As a result, the components can be arranged on the housing in a space-saving manner.

[0046] It is therefore advantageous if at least one of the following is provided: - the wall is at least substantially parallel to the axis of extension of the rod arrangement; - the wall delimits a third receptacle for the battery device relative to the dirty fluid tank device; - the wall is oriented at least approximately parallel to the front side of the housing; - The wall is spaced apart from the carrying handle in a transverse direction relative to the extension direction of the rod arrangement.

[0047] This results in an optimized and particularly space-saving arrangement of components. A low center of gravity can be achieved.

[0048] In one embodiment, an optical display device is arranged on the front side of the housing facing away from the lateral side. The front side has a relatively large area available for the optical display device. In particular, a status display can be obtained over a large area, for example by color signals and / or flashing signals, via the optical display device.

[0049] In particular, the front side has a flat region on which the optical display device is arranged. This results in a structurally simple design for the optical display device.

[0050] For the display on the optical display device, it is advantageous if the optical display device has a width of at least 50 cm with respect to its border line. 2 This results in good recognizability.

[0051] In particular, the optical display device here displays the status of the floor cleaning machine, such as error-free operation, maximum filling level of the dirty fluid tank device, empty level of the tank device for cleaning fluid, discharge status of the battery device, etc.

[0052] In particular, the optical display device provides a plurality of different display signals which are easily understandable, wherein the display signals differ in particular in their color and / or duration.

[0053] In one embodiment, the tank device for the cleaning liquid is particularly removably arranged on the floor head. This results in a shorter route for conveying the cleaning liquid to the at least one cleaning roller.

[0054] In one embodiment, at least one cleaning roller is arranged in a receiving portion on the floor head and can be removed from the floor head, wherein the receiving portion is open via an opening on the side of the floor head. A holder is arranged in the receiving portion in a removable manner, and a suction port device is arranged or formed on the holder, wherein the suction port device has at least one suction port, which is aimed at at least one cleaning roller and is fluidically connected to the blower device, and the holder and at least one cleaning roller can be placed on the floor head via the opening and can be removed.

[0055] During operation of the floor cleaning machine, at least one cleaning roller is acted upon by a suction flow generated by the blower device, thereby enabling dirty fluid (which is flowable and can in principle be loaded with liquid or dry) to be discharged.

[0056] The suction port device is an element of the floor cleaning machine that is subjected to dirt loading in principle due to the operation of the floor cleaning machine. The suction port device can be effectively positioned in the receiving portion during cleaning operation by a retainer, and removed and cleaned from the floor head after the cleaning operation.

[0057] The suction port device is an element that fluidically connects the blower device with the cleaning roller in terms of the suction flow, so that the suction flow loading on at least one cleaning roller is obtained accordingly, or in other words, so that dirty fluid can be sucked off from at least one cleaning roller. By means of the solution according to the invention, this "intermediary element" itself can be cleaned in an efficient manner. As a result, other areas of the floor head can be protected from the impact of dirty fluid loading.

[0058] In principle, it is possible for the holder and the at least one cleaning roller to be (i) insertable into or removable from the receptacle independently of one another or (ii) insertable into or removable from the receptacle together.

[0059] In one embodiment, the receiving portion is provided with an openable cover for closing the receiving portion laterally, wherein in particular a matching bearing for at least one cleaning roller is arranged on the cover. As a result, on the one hand, the cleaning roller can be enclosed laterally during the cleaning operation. On the other hand, in particular, a bearing can be provided for the rotatable support of at least one cleaning roller and the cleaning roller can be held in the receiving portion in a suspended manner in a rotatable manner via the end side.

[0060] In one embodiment, the cover can be removed from the ground head. Thus, for example, it can be achieved in a simple manner that the holder is firmly connected to the cover.

[0061] It is particularly advantageous that the holder is firmly connected to the cover and can be removed from the receiving portion and inserted into the receiving portion via the cover, and in particular, when the cover is locked together with the floor head, the holder is automatically correctly positioned in the receiving portion. This results in simple operability for the operator. The holder can be removed by opening the cover. When the cover is positioned correctly on the floor head, the holder (and in particular the at least one cleaning roller) is positioned correctly in the receiving portion.

[0062] It is also advantageous that the cover itself forms a handle for the holder. The holder can thus be removed or inserted in a simple manner via the cover as a handle. In particular, when removing the holder, the operator's contact with the holder, which is in principle exposed to dirt, is kept to a minimum.

[0063] In particular, the holder has an axis of extension which is at least approximately parallel to the axis of rotation when it is positioned in the receptacle. This results in a compact design of the floor head.

[0064] It is particularly advantageous if at least one of the following cleaning elements is arranged on the holder and can be removed from the floor head together with the holder: - At least one cleaning strip; - at least one scraper strip, which in particular bears against a lining of at least one cleaning roller or penetrates into the lining; - at least one splash guard which covers the wall of the receptacle at least in partial regions towards the at least one cleaning roller; - An at least partial distribution device for cleaning liquid, which serves to load the at least one cleaning roller and / or the surface to be cleaned with cleaning liquid.

[0065] These cleaning elements are elements that are in principle loaded with dirt. By positioning them on the same holder as the suction device, they can be removed from the floor head in a simple manner and clean themselves.

[0066] The at least one cleaning strip serves in particular to convey coarse dirt to the at least one cleaning roller, wherein the coarse dirt can then be entrained by the at least one cleaning roller and can be sucked away.

[0067] At least one scraper strip is used to remove dirty fluid from the covering surface of at least one cleaning roller so that it can be sucked away.

[0068] In particular, the at least one splash protection device has one or more contact elements which bear against a covering surface of the at least one cleaning roller in order to produce a corresponding splash protection effect.

[0069] The cleaning liquid is provided to at least one cleaning roller and / or the floor to be cleaned in the form of a nozzle via a dispensing device. In one embodiment, a delivery opening for the cleaning liquid to the at least one cleaning roller is arranged on the holder.

[0070] The arrangement of a plurality of cleaning elements on the holder results in a compact design.

[0071] In one embodiment, a push-guide device for at least one holder is arranged on the floor head, wherein in particular the insertion direction is at least approximately parallel to the axis of rotation. This results in a compact structure. The floor head can be designed to be very small. This again results in good cleanability due to the ability of the floor head to travel, for example, under furniture and the like. The push-guide device can automatically and accurately orient the elements on the holder relative to the at least one cleaning roller and, for example, the suction opening device on the floor head.

[0072] In particular, when the cover is closed, the holder extends from the cover to the drive bearing for the at least one cleaning roller on the floor head. In particular, the holder is in contact with the recess wall in the region of the drive bearing or is at a small distance therefrom. For this reason, the corresponding function of the cleaning element on the holder can be ensured substantially over the entire length of the at least one cleaning roller.

[0073] In an advantageous embodiment, the suction opening device has at least one pipe nipple. Via the at least one pipe nipple, the suction opening device on the holder can be fluidically connected to the suction channel device on the ground head in a simple manner.

[0074] It is therefore advantageous if at least one of the following is provided: - when the holder is positioned in the receptacle, the at least one socket is directed away from the at least one cleaning roller; - when the holder is positioned in the receiving portion, at least one socket faces the interior space of the ground head; - when the holder is positioned in the receiving portion, at least one cleaning roller is positioned between at least one nipple and the front end of the floor head; - when the holder is positioned in the receptacle, at least one socket is fluidically connected to the suction channel on the ground head; - when the suction opening device is inserted into the receptacle, at least one pipe nipple is automatically fluidically connected to the suction channel on the floor head; - a sealing device is arranged on the suction channel of at least one pipe socket and / or the ground head; - at least one socket has a cylindrical shape; - Exactly one socket is provided.

[0075] Since the at least one socket is directed away from the at least one cleaning roller and in particular toward the interior of the floor head, a compact design is obtained. The interior of the floor head can be occupied by the corresponding components in an optimized space-optimized manner.

[0076] Since the at least one socket is fluidically connected to the suction channel on the floor head when the cover is closed, a suction path is provided from the blower device to the cleaning roller in order to achieve an optimized cleaning effect.

[0077] Simple operability for the operator results from the fluidic connection which is automatically effected when the suction nozzle arrangement is inserted into the receptacle.

[0078] The sealing device can easily achieve a fluid-tight seal of the interface of the at least one socket to the suction channel arrangement on the ground head.

[0079] If the socket has a cylindrical shape and in particular exactly one socket is provided, a construction which is structurally simple in design is obtained.

[0080] It is particularly advantageous if at least one socket has a socket axis and at least one of the following is provided with reference to the socket axis: - when the holder is positioned in the receptacle, at least one socket forms an acute angle with the axis of rotation; - at least one socket forms an acute angle with the longitudinal extension axis of the holder; - when the holder is positioned in the receptacle, at least one socket forms an acute angle with the direction in which the suction nozzle device is inserted into the receptacle; - at least one suction channel for cooperating with at least one socket is arranged on the ground head, the suction channel being oriented at an acute angle to the axis of rotation; At least one socket has an end face on the end side, which is oriented at an acute angle to the insertion direction of the suction opening arrangement into the receptacle, and in particular the suction channels on the floor head corresponding to the respective end face have a corresponding angular position.

[0081] Thus, when the holder is inserted into the receptacle, a secure connection of the at least one socket to the suction channel device on the floor head can be achieved in a simple manner. In particular, the connection can be achieved in a fluid-tight manner in a simple and automated manner. Thus, a corresponding suction path is provided from the blower device to the at least one cleaning roller.

[0082] At least one socket has an obliquely arranged end face, so that a simple contact with a correspondingly adapted end face of the suction channel arrangement on the floor head can be achieved in a simple manner while at the same time achieving an effective fluid-tight function.

[0083] It is therefore provided in particular that the acute angle when the holder is positioned in the receptacle is the angle between the insertion direction and the socket axis and thus towards a drive bearing for at least one cleaning roller, wherein the drive bearing is mounted on the floor head. This makes it possible to achieve a simple contact between the socket and the corresponding suction channel in the floor head.

[0084] It has proven to be advantageous if the acute angle is between 50° and 80°.

[0085] In a structurally simple embodiment, there is exactly one nipple which, when the holder is positioned in the receptacle, is positioned in the middle plane between the end faces of the at least one cleaning roller. This allows an efficient suction effect to be achieved over the entire length of the at least one cleaning roller between its end faces, thereby again achieving an efficient cleaning effect on the floor to be cleaned.

[0086] Advantageously, the suction opening device has a funnel recess which, when the holder is positioned in the receiving portion, faces the at least one cleaning roller, and the at least one pipe nipple forms a funnel neck. This allows efficient suction flow loading of the at least one cleaning roller via the suction opening device, or dirty fluid can be efficiently sucked away from the at least one cleaning roller via the suction opening device.

[0087] In one embodiment, at least one cleaning strip, then at least one nipple, then at least one scraping strip, then at least one partial region of a distributor device for cleaning liquid are arranged on the holder in the following order with reference to the circumferential direction. In particular, the direction of rotation of the at least one cleaning roller is from the cleaning strip in the direction of the at least one nipple, then in the direction of the at least one scraping strip, then in the direction of the distributor device with respect to a specific region of the cleaning roller. This results in an efficient cleaning effect.

[0088] Furthermore, it is advantageous if a splash guard is arranged downstream of the distributor device or a partial region of the distributor device in the circumferential direction, the splash guard having, in particular, splash guard ribs.

[0089] In one embodiment, a tank device for cleaning liquid is removably arranged on the floor head, so that the conveying route for conveying cleaning liquid to at least one cleaning roller can be kept relatively short, thus achieving optimized space utilization.

[0090] Accordingly, a receptacle for a tank device for cleaning fluid is then positioned above the floor surface, wherein the tank device for cleaning fluid can then be inserted into the receptacle and removed from the receptacle.

[0091] An optimal utilization of space above the floor surface results if the receptacle for the tank device for the cleaning fluid is situated opposite the pump.

[0092] Furthermore, the distribution paths of the cleaning liquid over the floor can thereby be kept short.

[0093] Furthermore, it is advantageous if at least one of the following is provided: - the receptacle of the tank device for the cleaning liquid is closed at least on the upper side and on the lower side, wherein the upper side is opposite the lower side and the lower side faces the placement plane on the floor to be cleaned; A drawer-like guide for the tank device for cleaning fluid is assigned to the receptacle for the tank device for cleaning fluid.

[0094] If the receptacle is closed at least on the top and bottom, a receptacle (drawer) for a tank device for cleaning liquid can be easily formed. This results in a compact design. The tank device for cleaning liquid can be easily placed on the floor and removed by the operator.

[0095] In one embodiment, the receptacle of the tank device for cleaning liquid is open to the side of the floor head having the opening, and in particular, the tank device for cleaning liquid has a closure cover for the opening or is formed with such a cover. In particular, the closure cover is an integral component of the tank device. As a result, operator removal and operator reinsertion of the tank device can be carried out in a simple manner.

[0096] It is particularly advantageous if the opening of the receiving part of the tank device for the cleaning liquid and the opening for the at least one cleaning roller are located on the same side of the floor head. This results in a compact structure. This results in an optimized utilization of space on the floor head. This allows the floor head to be designed with relatively small dimensions.

[0097] Furthermore, it is advantageous if at least one of the following is provided: - the direction of insertion of the tank device for the cleaning liquid on the floor head and the direction of insertion of the cover with the suction device on the floor head are parallel / anti-parallel or form an acute angle of at most 20° with each other; - The removal direction of the tank device for cleaning liquid from the floor head and the removal direction of the cover with the suction opening device from the floor head are parallel / anti-parallel or form an acute angle of at most 20° with each other.

[0098] This results in a compact design of the ground head.

[0099] In one embodiment, a middle plane is assigned to the ground head, which is oriented perpendicularly to the axis of rotation and is centrally located between the sides of the ground head, and the middle plane divides the ground head into a first area and a second area, which are separated by the middle plane and have at least one of the following: - an opening of the receptacle of the tank device for the cleaning liquid is located at the first region; - the tank device for the cleaning liquid is positioned in the first area, and in particular completely in the first area; - the pipe nipple arranged on the suction device is at least approximately located in the middle plane; - a drive motor for at least one cleaning roller is located in the second area; - a drive bearing for at least one cleaning roller is located in the second area; - the pump is positioned in the first area; A tank device for the cleaning fluid is situated in the first area opposite the pump located in the second area.

[0100] This results in an optimized utilization of space. The tank device for the cleaning liquid can be designed with a larger volume. The floor head can be designed with a relatively low height dimension. This again results in an optimal travel capability under furniture and the like.

[0101] In an advantageous embodiment, the tank device for the cleaning fluid has an at least approximately cuboid shape with respect to the envelope surface, thereby resulting in a higher storage volume.

[0102] It can be provided that the tank device for the cleaning liquid has an inner recess on the outer circumference for matching the recess on the floor head, wherein the recess on the floor head is used to accommodate the articulation device. This results in an optimized utilization of space. This results in an optimized operability of the floor cleaning machine for the operator.

[0103] Advantageously, a conveying device for conveying cleaning fluid from a tank device for cleaning fluid to at least one cleaning roller is arranged on the floor head, and a pump for conveying the cleaning fluid in the conveying device is positioned on the floor head. Thus, cleaning fluid can be conveyed to at least one cleaning roller in a targeted and simple manner.

[0104] In one embodiment, (i) a rod device for manual guidance by an operator is hinged on the ground head, wherein the rod device can swing relative to the ground head about at least one swing axis and a housing is arranged on the rod device, or (ii) a housing is hinged on the ground head in a manner that it can swing about at least one swing axis, wherein the rod device is arranged on the housing, and wherein, in both cases (i) and (ii), the housing accommodates a fan device.

[0105] The lever arrangement enables an operator standing on the floor to be cleaned to hold and guide the floor cleaning machine. An adaptable height adjustment can be performed. By correspondingly pivoting the housing or the lever arrangement, the ability to travel under furniture and the like is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0106] The following description of the preferred embodiment is used to explain the present invention in more detail in conjunction with the accompanying drawings. In which:

[0107] Figure 1 An embodiment of a floor-cleaning machine according to the invention in the form of a hand-guided floor-cleaning machine is shown in a perspective view;

[0108] Figure 2 Show according to Figure 1 The floor cleaning machine is based on Figure 1 Another perspective view in the direction of A;

[0109] Figure 3 Show according to Figure 1 A partial cross-sectional view of a floor cleaning machine;

[0110] Figure 4 Show according to Figure 3 An enlarged view of region B;

[0111] Figure 5 Show according to Figure 1 A partial perspective view of a floor cleaning machine with housing elements removed;

[0112] Figure 6 Show according to Figure 1 A partial view of the floor cleaning machine in the area of ​​the carrying handle;

[0113] Figure 7 Show according to Figure 1 A top view of the floor cleaning machine with the rod assembly removed;

[0114] Figure 8 Shown with Figure 7 the same view with the tank device for the cleaning fluid removed and the housing removed;

[0115] Fig. 9 Show according to Figure 1 A partial perspective view of the floor cleaning machine in the area of ​​the floor head, wherein the tank device for the cleaning liquid is pushed out;

[0116] Fig.10 Show according to Figure 1 A partial perspective view of a floor cleaning machine in the area of ​​a floor head, wherein a tank device for cleaning liquid is partially pushed out and a suction nozzle device is partially pushed out;

[0117] Fig.11 Shown with Fig.10 A similar view with the tank arrangement for cleaning fluid pushed into the floor head and the housing hinge removed;

[0118] Fig.12Another partial view of the ground head is shown, with the suction port device pushed out;

[0119] Fig.13 A further partial view of the floor head is shown in a top view, with the suction port device pushed out;

[0120] Fig.14 Show according to Figure 1 A bottom view of a floor head of a floor cleaning machine of , with a cover on the underside removed;

[0121] Fig.15 Show according to Fig.14 Area D is in accordance with Figure 1 A sectional view in the section plane E of ;

[0122] Fig.16 Shows the ground head edge according to Fig.14 A cross-sectional view taken along line 16-16;

[0123] Fig.17 Show according to Fig.14 A partial cross-sectional view of the ground head along line 17-17; and

[0124] Fig.18 A further exemplary embodiment of a floor-cleaning machine according to the invention is shown in a partial perspective view with housing elements removed. DETAILED DESCRIPTION

[0125] Figures 1 to 17 The first embodiment of the floor cleaning machine according to the invention shown in FIG. 1 and designated by 10 comprises a floor head 12, on which a guide device 14 is articulated. In one embodiment, the floor head 12 has an at least approximately cuboid shape with respect to the outer envelope surface.

[0126] Arranged on the floor head 12 is (at least one) cleaning roller 16 which is rotatable about an axis of rotation 18 . In the exemplary embodiment shown, exactly one cleaning roller 16 is arranged on the floor head 12 .

[0127] The ground head 12 has a front end 20 and a rear end 22 opposite the front end. Between the front end 20 and the rear end 22, the ground head 12 has a first side 24 and an opposite second side 26.

[0128] In one embodiment, the front end 20 has an orientation at least approximately parallel to the axis of rotation 18 .

[0129] In the exemplary embodiment shown, the rear end 22 also has an orientation at least approximately parallel to the axis of rotation 18 .

[0130] In one embodiment (see Figure 1), the first side 24 and the second side 26 are oriented parallel to each other. The first side 24 and the second side 26 are oriented transversely and in particular perpendicularly to the rotation axis 18.

[0131] The ground head 12 has a middle plane 28 (see, for example, Figure 7 ), the middle plane is oriented perpendicularly to the rotation axis 18 and centered between the first lateral side 24 and the second lateral side 26. (In the illustrated embodiment, the middle plane 28 is oriented transversely and in particular perpendicularly to the front end 20 and the rear end 22).

[0132] In the region of the rear end 22, the ground head 12 has a recess 34 extending between the upper side 30 of the ground head and the lower side 32 of the ground head 12. The recess 34 is located in the middle plane 28 and is used to connect the guide device 14 to the ground head 12.

[0133] The recess 34 is open toward the rear end 22. The recess has a convex shape starting from the rear end 22.

[0134] The guide device 14 is connected to the ground head 12 via an articulation device 36. The articulation device 36 is positioned in the recess 34 (see, for example, Figure 3 ).

[0135] The articulation device 36 comprises an articulation part 38 , via which the guide device 14 is articulated on the ground head 12 in a pivotable manner about a pivot axis 40 .

[0136] In particular, the pivot axis 40 is oriented parallel to the rotation axis 18 .

[0137] In one embodiment, the pivot axis 40 is located within the recess 34 .

[0138] A support surface 42 is associated with the floor head 12 . A support device 44 is arranged on the floor head 12 in the region of the recess 34 , which together with the cleaning roller 16 defines the support surface 42 .

[0139] In one embodiment, the support device 44 includes a first roller 46 and an opposing second roller 48 (see, for example, Figure 1 ).

[0140] The first roller 46 is arranged on the wall of the recess 34 closest to the first lateral side 24 , while the second roller 48 is arranged on the opposite wall of the recess 34 closest to the second lateral side 26 .

[0141] The first roller 46 and the second roller 48 have a common axis of rotation 50 . The axis of rotation 50 is parallel to the rotation axis 18 and to the pivot axis 40 .

[0142] Accordingly, the placement plane 42 is defined by the rollers 46, 48 and the cleaning roller 16. If the floor cleaning machine 10 is placed on a flat floor 52 by means of the floor head 12 via the support device 44 and the cleaning roller 16 and thus the placement plane 42 as required, the placement plane 42 and the plane of the floor 52 coincide (see Figure 2 ).

[0143] When the ground head 12 is placed as intended on the ground 52 , the guide device 14 can then be pivoted via the articulation device 36 about the pivot axis 40 relative to the ground 52 and in particular the angle of the extension axis 54 of the guide device 14 with respect to the ground 52 can be changed.

[0144] The open recess 34 allows a small swing angle (at Figures 1 to 3 5 shows a swing angle of about 90° relative to the ground 52).

[0145] The pivotability about the pivot axis 40 allows the guide device 14 to be brought into a parked position relative to the ground head 12 (see Figures 1 to 3 ), in the parking position, in particular, the corresponding pivoting position of the guide device 14 relative to the floor head 12 is fixed, for example, in a force-locking manner. The pivotability about the pivot axis 40 allows, on the one hand, an operator to adapt the height of the floor cleaning machine 10 to his or her height during operation of the floor cleaning machine 10, and on the other hand, allows the ability to travel under furniture or the like.

[0146] In one embodiment, the articulated device 36 has additional swivelability, in particular in a swivel axis transverse to the swivel axis 40. Such a swivel axis is Figure 3 Indicated by reference numeral 56 in FIG.

[0147] The guide device 14 comprises a housing 58 which is articulated to the ground head 12 via an articulation device 36 .

[0148] A rod device 60 is fixed to the housing 58. In particular, the rod device 60 is fixed in an upper region 62 of the housing 58, wherein the upper region 62 faces away from the lower side 64 of the housing 58. The lower side 64 of the housing 58 (at least in the Figures 1 to 3 The guide device 14 shown in FIG. 1 is in the parking position relative to the floor head 12 ) toward the upper side 30 of the floor head 12. The lower side 32 of the floor head 12 opposite to the upper side 30 is again facing the placement plane 42 and facing the floor 52 during the operation of the floor cleaning machine 10.

[0149] The housing 58 has an upper side 66 which faces away from the lower side 64 of the housing 58 .

[0150] The rod device 60 projects upwards beyond the upper side 66 in the axis of extension 54 . The rod device 60 has a proximal end 68 and a distal end 70 , in the region around which the rod device 60 is connected to the housing 58 .

[0151] A guide handle 72 is arranged in the region of the proximal end 68 of the lever device 60. The guide handle serves to guide the floor cleaning machine 10 on the floor 52 to be cleaned by an operator standing on the floor 52. As described above, due to the pivotability about the pivot axis 40, the operator can adapt the pivot position of the lever device 60 and thus the position of the guide handle 72 (its height above the floor 52).

[0152] In one embodiment, the guide handle 72 is designed as a closed bow handle 74. The bow handle extends from the lever arrangement 60 at an acute angle 76 into a rear region, wherein the rear region faces away from the front end 20 of the floor head 12. In the case of the floor cleaning machine 10, the rear region is the region in which the operator stands during normal operation (to a certain extent, behind the floor cleaning machine 10 for cleaning operation).

[0153] In one embodiment, a display device and / or operating device 78 is positioned in the region of the proximal end 68, which is used to display, for example, the operating state of the floor cleaning machine 10 to the operator. In principle, the operating state of the floor cleaning machine 10, such as the roller speed, the amount of cleaning fluid applied, etc., can also be adjusted via the display device / operating device 78.

[0154] In one embodiment, a switch 80 is arranged on the guide handle 72 (see Figure 1 ), which is used to switch on and off the floor cleaning machine 10. Such a switch can alternatively be arranged on the guide device 14, and here on the rod device 60 or on the housing 58.

[0155] The guide handle 72 is arranged in a height direction 82 with respect to the placement plane 42 ( Figure 3 ) is spaced apart from the upper side 66 of the housing 58. The height direction 82 is perpendicular to the placement plane 42.

[0156] In one exemplary embodiment, the guide handle 72 is at a fixed distance from the upper side 66 in the height direction 82. In principle, the lever arrangement 60 can also be designed to be lockably height-adjustable.

[0157] The guide handle 72 faces the upper side 66 . The projection of the guide handle 72 onto the upper side 66 in a direction parallel to the height direction 82 is located at least partially on the upper side 66 .

[0158] The upper side 66 is oriented transversely to the axis of extension 54 of the lever arrangement 60 and in one exemplary embodiment perpendicularly thereto.

[0159] In particular, the rod device 60 includes a single rod 84. The rod 84 has a front side 86 and a rear side 88. The rear side 88 faces the operator during proper operation, and the front side 86 faces away from the rear side 88. The front side (at least according to Figure 1 The front end 20 of the ground head 12 is positioned in the parking position.

[0160] The upper side 66 of the housing 58 extends away from the rear side 88 of the rod 64. The housing 58 has a front side 90 and a rear side 92. The rear side 92 faces the operator during proper operation, and the front side 90 faces away from the rear side 92. The front side 90 of the housing 58 and the front side 86 of the rod 84 are located on the same side of the floor cleaning machine 10. The rear side 88 and the rear side 92 are located on the same side of the floor cleaning machine 10, wherein in particular, the rear side 88 of the rod 84 is offset relative to the rear side 92 of the housing 58.

[0161] In particular, front side 86 of rod 84 and front side 90 of housing 58 are at least approximately aligned with each other, or the offset between front side 86 and front side 90 of housing 58 in the transverse direction of extension axis 54 is significantly smaller than the offset between rear side 88 and rear side 92 .

[0162] The housing 58 has sides 94, 96 between the front side 90 and the rear side 92. The housing 58 has a cuboid shape at least approximately with respect to the envelope surface.

[0163] The housing 58 is used to accommodate the following components:

[0164] A dirty fluid tank device 98 that can be removed from the housing 58; an interface device 100 for the dirty fluid tank device 98; a fan device 102 that generates a suction flow during operation of the floor cleaning machine 10; a battery device 104 that provides electrical energy to the floor cleaning machine 10; and an electronic device unit 106.

[0165] In addition, a carrying handle 108 is provided on the housing 58 .

[0166] The housing has a first receptacle 110 in which the electronics unit 106 is positioned.

[0167] The first receptacle 110 is positioned in the region of the front side 90 in an imaginary continuation of the rod device 60 along the extension axis 54 into the housing 58 (the rod 84 enters the housing 58). Thus, the rod device 60 is positioned above the electronics unit 106 (for example, in accordance with Figure 1 Refer to the height direction 82 for the parking position.

[0168] The housing 58 has a wall 112 that separates a first receiving portion 110 from a second receiving portion 114 within the housing 58. The second receiving portion 114 is used to receive and retain the dirty fluid tank arrangement 98.

[0169] The wall 112 is oriented at least approximately parallel to the axis of extension 54 of the rod arrangement 60 .

[0170] The width of the first receptacle 110 between the front side 86 and the wall 112 is at least approximately as large as the width of the rod 84 between the front side 86 and the rear side 88 , and in particular is at most 30% larger than the width between the front side 86 and the rear side 88 .

[0171] A third receptacle 116 is arranged in the housing 58, which follows the first receptacle 110 downward in an imaginary extension of the rod device 60 along the extension axis 54 and in this case in particular adjoins a wall of the lower side 64 of the housing 58. A battery device 104, in particular a rechargeable battery device 104, is positioned in the third receptacle 116. The battery device can be removably positioned there or fixedly positioned. Accordingly, an electrical interface for a charging device is then provided.

[0172] In particular, the wall 112 at least partially also delimits a third receptacle 116 relative to the second receptacle 114 .

[0173] The battery device 104 includes a plurality of battery elements that are combined into a single unit and are stacked one on top of the other.

[0174] The connection device 100 is arranged in the region of the lower side 64 on the housing 58 and extends to a height plane 118 perpendicular to the extension axis 54. The height plane 118 intersects the battery device 104 in the third receptacle 116; the lower side 120a of the battery device 104 facing the lower side 64 of the housing 58 is located below the height plane 118. The upper side 120b of the battery device 104 facing away from the lower side 120a is located above the height plane 118; the height plane 118 is located between the lower side 120a and the upper side 120b.

[0175] A support surface 120 for the dirty fluid tank arrangement 98 is formed on the height plane 118 .

[0176] On the upper side 120 b of the battery arrangement 104 there is a further height plane 124 which is perpendicular to the axis of extension 54 .

[0177] In one embodiment, dirty fluid tank assembly 98 has a height that extends beyond height plane 124. Dirty fluid tank assembly 98 has a height that is greater than the spacing between height plane 118 and height plane 124.

[0178] The fan device 102 is positioned above the second receptacle 114 for the dirty fluid tank device 98 with reference to the height plane 124. The fan device has an electric motor and at least one impeller. In addition, the fan device has a suction connection 126, to which a corresponding matching element 128 of the dirty fluid tank device 98 can be coupled, or when the dirty fluid tank device is placed on the housing 58, there is a coupling to the suction connection 126, so that suction flow loading can be achieved.

[0179] The second receptacle 114 is open toward the rear side 92 , so that the dirty fluid tank device 98 can be removed toward the rear side 92 of the housing 58 or can be inserted from the rear side 92 .

[0180] The dirty fluid tank device 98 is used to receive the dirty fluid. Here, the dirty fluid is understood to be a flowable medium, which can contain a liquid or can also be dry in principle.

[0181] The dirty fluid tank device 98 is used to hold dirty fluid and in particular dirty liquid. The dirty fluid tank device 98 is also designed as a separator, which separates the air flow from in particular dirt and in particular liquid containing dirt.

[0182] The connection device 100 forms an input connection for dirty fluid, which is used to couple the dirty fluid into the dirty fluid tank device 98. The suction connection 126 forms an input connection for coupling in a suction flow.

[0183] In one embodiment (see Figure 3 ), when the dirty fluid tank device is placed on the housing 58, the mating element 128 of the dirty fluid tank device 98 is located on a height plane 130 that is perpendicular to the extension axis 54 and intersects the electronic device unit 106.

[0184] The fan device 102 is located above this height plane 130 and in particular above the electronics unit 106 , or at most has a small height overlap with the electronics unit 106 .

[0185] In the region of the articulation device 36, a suction channel device 132 is arranged on the guide device 14, which is fluidically connected to the interface device 100. As will be described in more detail below, the suction flow can be applied to the floor head 12 via the suction channel device, or dirty fluid can be sucked away and coupled into the dirty fluid tank device 98.

[0186] The suction channel device 132 is designed and arranged in such a way that it enables the guide device 14 to be pivotable relative to the ground head 12 or to be carried accordingly.

[0187] The fan device 102 extends up to a further height plane 134 which is perpendicular to the axis of extension 54 .

[0188] The height plane 134 is spaced apart in height from the height plane 130. The upper side 66 of the housing 58 is located above the height plane 134 and is therefore closer to the guide handle 72 than the height plane 134. Between the height plane 134 and the upper side 66 there is a handle area 136 of the housing 58. The handle area 136 extends from the rod 84 to the rear side 92 of the housing 58.

[0189] The housing 58 has a transverse side 138 which is transverse to the upper side 66 and adjoins the upper side 66. The transverse side 138 corresponds to the rear side 92 of the housing 58.

[0190] The carrying handle 108 is associated with both the upper side 66 and the transverse side 138. The floor-cleaning device 10 can be held on the housing 58 both from the transverse side 138 and from the upper side 66 via the carrying handle 108 and then transported accordingly.

[0191] The lifting handle 108 makes it possible to grip the floor-cleaning machine from the upper side 66 and accordingly hold it, or alternatively, to grip it from the lateral side 138 and thus accordingly transport it.

[0192] A through recess 140 is arranged on the handle region 136 as a handle recess (see Figure 6 ). The recess 140 is open toward the upper side 66 and toward the lateral side 138. The recess 140 extends between the upper side 66 and the lateral side 138.

[0193] Arranged at the recess 140 is a bracket 142 as a carrying handle 108, which bracket extends between the first side 94 and the second side 96 of the housing 58 at the handle region 136. The recess 140 extends substantially underneath the bracket 142.

[0194] In this case, the bracket 142 forms a partial region 144 of the upper side 66 and, oriented transversely thereto, a partial region 146 of the lateral side 138 .

[0195] The recess 140 is a handle recess, and the bracket 142 delimits the handle recess 140 as a carrying handle 108 .

[0196] As described above, the handle recess 140 has the first opening 148 on the upper side 66 and the second opening 150 on the lateral side. The first opening 148 and the second opening 150 are connected to each other via the handle recess 140 .

[0197] The operator can use the holding hand to move in direction 152 (see Figure 6) from above. To this end, the operator can sink the fingers of the holding hand through the first opening 148 from the direction 152 into the handle recess 140 and can then grasp the handle 142 from above accordingly. During this grasping process, his palm is pointed in the direction 152.

[0198] Alternatively, the operator can sink the fingers of his holding hand into the second opening 150 along a direction 154 transverse to the direction 152 and, for example, perpendicular thereto, and then grip the bracket 142 (carrying handle 108) accordingly. In this gripping method, the operator's palm is oriented in the direction 154, and in this case, in particular, toward the rod 84.

[0199] In one embodiment, the handle recess has a first region 156a and a second region 156b. The first opening 148 is located in the first region 156a. The second opening 150 is located in the second region 156b. The first opening 148 and the second opening 150 have opening normals that are transverse to each other, which are oriented in particular perpendicular to each other. The second region 156b is oriented transversely and in particular perpendicularly to the first region 156a. Thus, the handle recess has a cross section ( Figure 3 ) has an L-shape or at least roughly a C-shape.

[0200] The carrying handle 108 with the associated grip recess 140 is adapted in its dimensions to the hand of an operator and is, in particular, ergonomically designed.

[0201] In one embodiment, the housing has a convex surface 158 on the rear side 92 subsequent to the handle area 136 in order to enable a transition to the dirty fluid tank arrangement 98 and to allow the use of a dirty fluid tank arrangement 98 with a larger holding volume.

[0202] The width of the housing 58 between the front side 90 and the rear side 92 in the handle region 136 is smaller than the width at the convex surface 158 below the handle region 136 .

[0203] This embodiment makes it possible to provide a dirty fluid tank arrangement having a larger storage volume without a shoulder being present on the rear side 92 of the housing 58 .

[0204] The embodiment described above is one in which the housing 58 is hinged to the ground head 12 via the hinge device 36 and the rod device 60 is fixed to the housing. In principle, it is also possible that the rod device is directly hinged to the ground head 12 via the hinge device and then the corresponding housing is held on the rod device.

[0205] In one embodiment, a display device, in particular an optical display device 160, is arranged on the front side 90 of the housing 58. In particular, the housing 58 has a flat region 162 on the front side 90, on which the optical display device 160 is positioned.

[0206] In this case, optical display device 160 extends over a larger surface area, in particular at least 50 cm, with reference to boundary line 164. 2 .

[0207] The optical display device 160 is used in particular for the "large-area" optical display of the state of the floor cleaning machine 10, for example, at least one of the following can be displayed: an indication that the specified operating mode, a fault, the dirty fluid tank device 98 should be emptied; an indication that the tank device for cleaning fluid should be filled, an indication about the discharge of the battery device 104, etc. For example, the optical display of the display device 160 can be realized via a color graphic (such as green for specified operation and red for a state requiring operator intervention). Alternatively or additionally, for example, the corresponding state can also be displayed by a signal duration (such as flashing).

[0208] The ground head 12 has a housing 202, in particular in the form of a (closed) housing cover. On the housing 202, there are a first side 24 and a second side 26 on the cover wall. In addition, there is a rear wall 204 as a cover wall on the housing 202, on which the rear end 22 is located.

[0209] The housing 202 is closed on the top 30 by a cover 206. The cover 206 is firmly connected to the housing 202 and can usually be opened without tools. Figure 5 , the cover 206 is removed.

[0210] The housing 202 of the floor head 12 has a first receptacle 208 for the cleaning roller 16 .

[0211] The receptacle 208 is open toward the front end 20 and toward the underside 32 , so that the cleaning roller 16 can act on the floor surface 52 .

[0212] A tab 210 is formed on the housing 202 (see, for example, Figure 5 ), wherein the web 210 is located in particular on the first side 24 . The web 210 delimits the receptacle 208 on the floor head 12 toward the side 24 and extends as far as the front end 20 .

[0213] The receiving portion 208 is open to the opposite second side 26 via the opening 212 on the second side 26 (see, for example, Fig.10 ).

[0214] The cleaning roller 16 can be removed from the floor head 12 via the opening 212 and can be inserted into the floor head.

[0215] The web 210 extends as far as the front end 20. As a result, the receptacle 208 for the cleaning roller 16 forms a recess on the housing 202 which, with respect to the envelope surface, is at least approximately rectangular in cross section.

[0216] A drive bearing 214 for the cleaning roller 16 is arranged on the web 210, extending into the first receptacle 208, for driving the cleaning roller 16 to rotate about the rotation axis 18. The drive bearing 214 is designed to be rotatable about the rotation axis 18 and has a corresponding coupling for coupling the cleaning roller 16 in a rotationally fixed manner.

[0217] In the housing 202 of the floor head 12, a drive motor 218 for the cleaning roller 16 is arranged with reference to the longitudinal axis 216 of the floor head 12. The drive motor is an electric motor supplied with electrical energy via the battery device 104. Corresponding electrical connection lines are arranged on the guide device 14 and the floor head 12. In addition, corresponding signal lines are provided to enable control (in particular switching on and off) of the drive motor 218.

[0218] A torque transmission device 220 is provided, which is positioned in the housing 202 and is positioned at least partially on the web 210 .

[0219] The drive shaft of the drive motor 218 is spaced apart from the driver bearing 214 (and in particular spaced apart parallel to the axis of rotation), and the torque transmission device 220 serves to transmit the torque from the drive motor 218 to the driver bearing 214 over a corresponding distance.

[0220] The torque transmission device 220 includes, for example, a belt drive.

[0221] The torque transmission device 220 can also be configured such that it causes, for example, a speed reduction from a drive shaft of the drive motor 218 to the drive bearing 214 .

[0222] A pump 222 is arranged in the housing 202 . The pump 222 is coupled to a delivery device that delivers cleaning liquid to the cleaning roller 16 , and is used to convey the cleaning liquid from a tank device 224 for cleaning liquid to the cleaning roller 16 .

[0223] The pump 222 is arranged downstream of the drive motor 218 with reference to the longitudinal axis 216 and is arranged closer to the rear end 22 than the cleaning roller 16 .

[0224] In particular, the drive motor 218 is positioned between the pump 222 and the cleaning roller 16 with reference to the longitudinal axis 216 .

[0225] The longitudinal axis 216 here extends between the front end 20 and the rear end 22 of the ground head 12 and is in particular perpendicular to the axis of rotation 18 .

[0226] In one embodiment, a tank device 224 for cleaning liquid is removably positioned on the floor head 12. To this end, the floor head 12 has a second receiving portion 226 for the tank device 224 for cleaning liquid. The second receiving portion 226 has an opening 228 on a second side of the floor head 12 (housing 202). The opening 228 of the second receiving portion 226 is located on the same side as the opening 212 of the first receiving portion 208 for the cleaning roller 16 (see Figure 8 ).

[0227] The second receptacle 226 is closed at the upper side 30 of the floor head 12 and at the lower side 32 of the floor head 12. The second receptacle 226 forms a drawer-like guide, wherein the tank device 224 for the cleaning liquid is then correspondingly designed as a drawer which can be inserted into the second receptacle 226 and removed from the second receptacle.

[0228] The insertion direction 230 and removal direction 232 of the tank device 224 are transversely and in particular perpendicularly to the longitudinal axis 216 and at least approximately parallel to the axis of rotation 18 .

[0229] The tank device 224 has at least approximately a cuboid shape with respect to its envelope surface.

[0230] In one embodiment, the tank device has an inner recess 236 on the outer peripheral side 234 (see, for example, Figure 5 or Figure 8 ).

[0231] The inner recess 236 is used to match the shape of the tank device 224 to the ground head 12 in the area of ​​the recess 34 , thereby providing a larger cleaning liquid volume for the tank device 224 and optimizing the space utilization on the ground head 12 .

[0232] The middle plane 28 divides the ground head 12 into a first area 238 and a second area 240. The middle plane 28 separates the first area 238 from the second area 240. The openings 212 and 228 are located in the first area 238 of the ground head 12. When the tank device 224 is placed, the tank device is particularly completely positioned in the first area 238 (see, for example, Fig.14 The drive motor 218 and the pump 222 are positioned in the second region 240. The torque transmission device 220 and the driver bearing 214 are positioned in the second region 240.

[0233] The cleaning roller 16 is positioned both in the first region 238 and in the second region 240 .

[0234] The tank device 224 can be locked together with the ground head 12. The tank device is formed with a cover 242 for closing the opening 228. In one embodiment, a handle element 244 is arranged on the cover 242, via which an operator can grasp the tank device 224 and pull it out of the second receiving portion 226 for refilling.

[0235] A cover 246 is provided to close the opening 212 of the first receptacle 208 for the cleaning roller 16. The cover 246 can be removed from the floor head 12. The insertion / removal direction 248 of the cover 246 on the floor head 12 is transverse and in particular perpendicular to the longitudinal axis 216 or the center plane 28. The insertion / removal direction 248 is at least approximately parallel to the rotation axis 18.

[0236] The insertion / removal direction 248 is preferably at least approximately parallel to the insertion direction 230 / removal direction 232 of the tank device 224 at the second receptacle 226 .

[0237] A counter bearing 250 for the driver bearing 214 is arranged on the cover 246. In particular, the counter bearing 250 comprises a ball bearing. When the cleaning roller 16 is positioned as required on the floor head 12, when the cover 246 is closed, the cleaning roller 16 is supported in a manner rotatable about the rotation axis 18 via the driver bearing 214 and the counter bearing 250 and is suspended to a certain extent between the driver bearing 214 and the counter bearing 250.

[0238] A holder 252 is arranged on the cover 246 and protrudes laterally from the cover 246. The holder 252 carries (holds) cleaning elements of the floor cleaning machine, which can be positioned in the first receptacle 208 via the holder 252, wherein the automatic positioning of the cleaning elements on the floor head 12 is achieved by positioning the cover 246 on the housing 202 (floor head 12). In particular, cleaning elements that may be loaded with dirt can be removed from the floor head 12 via the cover 246 and cleaned accordingly, for example, under a water jet.

[0239] The cover 246 forms a handle for the holder 252 so that the operator can pull the holder 252 out of the receptacle 208 by grasping the cover 246 (after releasing the latching of the cover 246 with the ground head 12 ), or can insert the holder 252 into the receptacle 208 while holding the cover 246 .

[0240] The holder 252 is designed such that when the cover 246 is fixed, it extends from the cover 246 to which it is fixedly connected in the first receptacle 208 to the web 210. In this case, the holder is arranged to abut against the web 210 or at a small distance therefrom.

[0241] The holder 252 has at least one tab 254 which has a corresponding holding function for the cleaning element and extends away from the cover 246. The tab 254 has an extension axis 256 which, when the cover 246 is fixed, is at least approximately parallel to the axis of rotation 18 or at least approximately parallel to the insertion direction / removal direction 248. The extension axis 256 is then transverse and in particular perpendicular to the longitudinal axis 216 or transverse and in particular perpendicular to the center plane 28.

[0242] A suction nozzle device 258 is arranged on the holder 252 .

[0243] The web 254 or the holder 252 comprises a wall 260 which at least partially covers the first receptacle 208 facing the cleaning roller 16 .

[0244] There is a suction port arrangement 262 on the wall 260 which is aimed at the cleaning roller 16 (when the cover 246 is secured to the floor head 12).

[0245] In one exemplary embodiment, exactly one suction opening device 262 is provided, which is positioned in particular centrally between the end sides 264 a , 264 b of the cleaning roller 16 .

[0246] Wall 260 includes an opening 266 .

[0247] The opening is arranged at a funnel region 268 which (when the cover 246 is inserted) faces the cleaning roller 16 .

[0248] At the opening 266 there is a nipple 270 which points away from the cleaning roller 16 into the interior of the floor head 12. The nipple 270 forms the funnel neck of the funnel region 268.

[0249] In particular, the socket 270 is designed to be cylindrical.

[0250] The nipple 270 has a nipple axis 272 that forms an acute angle 274 with the extension axis 256 (see, for example, Fig.14 ) orientation.

[0251] When cover 246 is fixed, nipple axis 272 is oriented at an acute angle 274 to axis of rotation 18 .

[0252] The sign of the acute angle 274 is such that when the cover 246 is fixed, a corresponding angular range is assigned to the drive bearing 214 (see Fig.14 ).

[0253] The pipe socket 270 has an end surface 276 (see, for example, Fig.15), which forms an acute angle with the extension axis 256, wherein the acute angle is the complementary angle of the acute angle 274, and here with reference to the insertion direction 248, the side facing the drive bearing 214 is at a smaller distance from the front end 20 than the side facing the cover 246.

[0254] A seal 278 , in particular a molded seal, is arranged on the socket 270 in the region of the end face 276 .

[0255] Arranged on the ground head 12 is a suction channel arrangement 280 which has, in particular, one and precisely one suction channel which is adapted to the socket 270 .

[0256] When the cover 246 is placed on the floor head 12 and locked with the floor head, the pipe nipple 270 is then connected to the suction channel device 280 and connected therein in a fluid-tight manner. Thus, during operation of the floor cleaning machine 10, a suction flow can be applied to the cleaning roller 16 via the suction opening device 258 around the suction channel device 280, or dirty fluid can be discharged via the suction opening device 258.

[0257] Efficient drainage is ensured via the funnel area 268 .

[0258] Since the pipe socket 270 is arranged at an acute angle 274, when the retainer 252 with the suction port device 258 is inserted into the first accommodating portion 208, efficient coupling of the suction port device 258 on the retainer 252 that can be removed from the ground head and the suction channel device 280 fixedly connected to the ground head 12 can be achieved.

[0259] The suction opening arrangement 258 and in particular the region thereof facing the cleaning roller 16 is usually exposed to dirt during operation of the floor cleaning device 10 .

[0260] By being arranged on a holder 252 , wherein the holder can be removed from the floor head 12 via the cover 246 , simple cleaning can be performed.

[0261] Here, when the cover 246 is fixed on the floor head 12, the cleaning roller 16 is located between the front end 20 and the pipe socket 270 (see Fig.17 ).

[0262] The suction duct arrangement 280 is in fluidic connection with the dirty fluid tank arrangement 98 and, via the dirty fluid tank arrangement, in turn in fluidic connection with the blower arrangement 102 .

[0263] A circumferential direction 282 (see Fig.17 ).

[0264] Furthermore, a cleaning strip 284 is arranged on the holder 252 , which serves to convey coarse dirt to the cleaning roller 16 .

[0265] In particular, the cleaning strip 284 comprises an elastic lip. It is provided that the cleaning strip 284 is located on the placement plane 42, or at most has a small spacing with the placement plane. Fig.17 In the figure, the placement plane 42 is shown in a manner that extends through the lining 286 of the cleaning roller 16. When the floor head 12 is placed on the floor 52, the lining 286 of the cleaning roller 16 is usually subjected to some compression, which Fig.17 should be indicated schematically by corresponding lines).

[0266] The cleaning strip 284 is then followed in the circumferential direction 282 by the nipple 270 .

[0267] In one embodiment, the backing surface 286 of the cleaning roller 16 is made of a textile material, and in particular, a microfiber material.

[0268] At least one scraping strip 288 is arranged on the holder 252, which is against the lining or in particular penetrates into the lining. The scraping strip 288 is used to strip dirty fluids, in particular dirty fluids containing liquids, from the lining 286 of the cleaning roller 16, wherein suction can be carried out on the suction port device 258.

[0269] The scraper strip 288 follows the socket 270 in particular in the circumferential direction 282 .

[0270] In addition, at least a part of a distribution device 290 for cleaning liquid is also arranged on the retainer 252. In particular, the part includes a plurality of openings 292 passing through the retainer 252. The distribution device 290 is coupled to the delivery device for cleaning liquid as a whole fluidly. The cleaning liquid is transported to the distributor device 290 from the tank device 224 for cleaning liquid via the pump 222, and the cleaning liquid can flow onto the cleaning roller 16 through the openings 292.

[0271] The cleaning liquid is in particular clean water, which can optionally be provided with surface-active additives as cleaning agents.

[0272] In particular, the part of the dispensing device 290 having the opening 292 follows the wiper strip 288 in the circumferential direction 282 .

[0273] In one exemplary embodiment, a splash guard 294 is further arranged on the holder 252 , which in particular follows the distributor device 290 in the circumferential direction 282 .

[0274] The splash guard 294 has in particular one or more contact elements which, in the end region of the holder 252 , rest against the lining 286 or are sunk into it and thus also cover the lining 286 , in particular upwards (towards the top side 30 ) towards the first receptacle 208 .

[0275] In one embodiment, during operation of the floor cleaning machine 10, the cleaning roller 16 has a rotation direction 296 ( Fig.17 ), in which direction of rotation a specific area of ​​the lining 286 first comes into contact with the scraping strip 288 and is then guided toward the opening 292.

[0276] The operation of the floor cleaning machine 10 is as follows:

[0277] The operator can hold and carry the floor cleaning machine 10 at the carrying handle 108. As desired, the operator can hold the floor cleaning machine 10 on the housing 58 from above (by reaching into the first opening 148) or from the lateral side 138 (from the rear side 92) by reaching into the second opening 150.

[0278] To clean the floor 52 , the floor head 12 is placed onto the floor.

[0279] When the floor cleaning machine 10 is started, the blower device 102 starts to operate. In addition, the drive motor 218 is operated. The cleaning roller 16 rotates about the rotation axis 18 .

[0280] For example, activation can be achieved via the switch 80. However, it can also be provided that the guiding device 14 is moved from a parking position (such as Figure 1 ) moves out, so that the drive motor 218 and the fan device 102 are started, and returning to the parking position is correspondingly shut down.

[0281] During the floor cleaning operation, the operator guides the floor cleaning device 10 over the floor to be cleaned and holds it by the guide handle 72 .

[0282] The cleaning roller 16 rotates. Cleaning liquid from the tank device 224 (delivered via the pump 222) is applied to the cleaning roller and / or the floor 52 to be cleaned. This achieves improved dirt removal on the floor 52. The lining 286 of the cleaning roller 16 receives dirt. Coarse dirt is delivered to the cleaning roller 16 via the sweeping strip 284. The dirty fluid is stripped from the lining 286 via the scraping strip 288. Suction is carried out at the suction port device 258. The dirty fluid is transported to the dirty fluid tank device 98. There, the air flow is separated from the dirty fluid.

[0283] To clean the floor cleaning machine 10 itself, the cover 246 is removed from the floor head 12. This automatically removes the holder 252 on which the corresponding cleaning elements, which are in principle exposed to dirt, are placed. This allows them to be cleaned in a simple manner. The holder 252 is guided out of the opening 212.

[0284] The cleaning roller 16 can then also be removed from the first receptacle 208 through the same opening 212 and cleaned accordingly (for example in a washing machine).

[0285] Due to the arrangement of the battery device 104 on the guide device 14 close to the ground head 12 , an optimized weight distribution is achieved.

[0286] Due to the corresponding arrangement of the drive motor 218 and the tank device 224 for the cleaning liquid, an optimized space utilization is obtained on the floor head 12. In particular, the tank device 224 and the cover 246 are arranged on the same side 26 and can be taken out or placed on the same side accordingly.

[0287] Thus, the ground head 12 can also be formed relatively low in height, and has obtained good downward travel capability below furniture and the like. In addition, good downward travel capability has been obtained by arranging the recess 34, because the guide device 14 can be at a small angle with the ground 52 around the swing axis 40.

[0288] Due to the inclined arrangement of the nipple 270, it is possible to achieve a connection of the removable suction nozzle 258 with the suction nozzle 280 which is firmly arranged on the ground in a simple manner. For the nipple 270, a defined contact surface is provided on the suction nozzle 280, wherein an effective contact is automatically established when the holder 252 is correctly positioned in the receiving portion 208. The connection can be released in a simple manner. A fluid tightness can be achieved in a simple manner, or the fluid tightness can be released in a simple manner.

[0289] The result is a structurally simple structure of the floor cleaning machine 10 , which is easy to operate and also makes maintenance (cleaning) of the floor cleaning machine 10 simple for the operator.

[0290] In the floor cleaning machine according to the present invention Fig.18 In a further embodiment schematically shown in FIG. 1 and marked with 296 , the ground head is in principle constructed as described above and is marked with the same reference numerals.

[0291] The housing 298 has a handle region 136 ′ which is designed identically to the above description with respect to a carrying handle.

[0292] A receptacle 298 for a battery device 300 is arranged on the handle region 136 ′. The battery device 300 is thus accommodated between the rod 84 and the carrying handle 108 .

[0293] The receiving portion 298 is open toward the upper side 66 so that the battery device 300 can be inserted. The corresponding opening 302 is closed by a cover ( Fig.18 In the embodiment of the present invention, the cover can be opened without tools, in particular, the battery device 300 is firmly arranged on the housing and cannot be removed.

[0294] An electronics unit 106 ′ is arranged below the handle region, between the blower device 102 ′ and the handle region 136 ′.

[0295] In this embodiment, the tank device for the cleaning liquid can be arranged on the floor head 12 as described above, or can be arranged, for example, in the region of the underside of the housing and, for example, in the region of a corresponding third receptacle 116 ′.

[0296] In other respects, floor cleaning machine 296 functions as described above.

[0297] Reference numerals list

[0298] 10 Floor cleaning machine

[0299] 12 Ground Head

[0300] 14 Guidance Device

[0301] 16 Cleaning roller

[0302] 18 Rotation axis

[0303] 20 Frontend

[0304] 22 Backend

[0305] 24 First side

[0306] 26 Second side

[0307] 28 Middle plane

[0308] 30 upper side

[0309] 32 Lower side

[0310] 34 recess

[0311] 36 Articulated device

[0312] 38 hinge

[0313] 40 Swing axis

[0314] 42 Placement plane

[0315] 44 Support device

[0316] 46 First roller

[0317] 48 Second roller

[0318] 50 Rotation axis

[0319] 52 Ground

[0320] 54 Extended axis

[0321] 56 Additional swivel axis

[0322] 58 Housing

[0323] 60 rod device

[0324] 62 Upper Area

[0325] 64 Lower Area

[0326] 66 upper side

[0327] 68 Proximal

[0328] 70 Far End

[0329] 72 Guide handle

[0330] 74 Bow Handle

[0331] 76 Acute Angle

[0332] 78 Display device

[0333] 80 Switch

[0334] 82 Height direction

[0335] 84 strokes

[0336] 86 front

[0337] 88 rear side

[0338] 90 Front side (housing)

[0339] 92 rear side (housing)

[0340] 94 Side

[0341] 96 Side

[0342] 98 Dirty Fluid Tank Assembly

[0343] 100 Articulated device

[0344] 102, 102' fan device

[0345] 104 Battery Device

[0346] 106, 106' Electronics Unit

[0347] 108 Carrying handle

[0348] 110 first accommodation portion

[0349] 112 wall

[0350] 114 second accommodation portion

[0351] 116, 116' third receiving portion

[0352] 118 Height plane

[0353] 120a Lower side

[0354] 120b Upper side

[0355] 122 Support surface

[0356] 124 Height plane

[0357] 126 Suction port

[0358] 128 Matching components

[0359] 130 Height Plane

[0360] 132 Suction channel device

[0361] 134 Height plane

[0362] 136, 136' Handle area

[0363] 138 lateral side

[0364] 140 recess

[0365] 142 bow

[0366] 144 Partial area

[0367] 146 Partial area

[0368] 148 First Opening

[0369] 150 Second Opening

[0370] 152 Direction

[0371] 154 Direction

[0372] 156a First Area

[0373] 156b Second Area

[0374] 158 Convex

[0375] 160 Optical display device

[0376] 162 Flat Area

[0377] 164 Border Line

[0378] 202 Shell

[0379] 204 Back Wall

[0380] 206 Cover

[0381] 208 first accommodation part

[0382] 210 splice

[0383] 212 Opening

[0384] 214 Drive bearing

[0385] 216 longitudinal plane

[0386] 218 Drive Motor

[0387] 220 Torque transmission device

[0388] 222 Pump

[0389] 224 Tank device for cleaning fluid

[0390] 226 Second accommodating portion

[0391] 228 Opening

[0392] 230 Insertion direction

[0393] 232 Extraction direction

[0394] 234 Outer side

[0395] 236 Concave

[0396] 238 First Area

[0397] 240 Second Area

[0398] 242 Cover

[0399] 244 Handle element

[0400] 246 Cover

[0401] 248 Insertion direction / removal direction

[0402] 250 Matching bearing

[0403] 252 Retainer

[0404] 254 splice

[0405] 256 Extended Axis

[0406] 258 Suction device

[0407] 260 wall

[0408] 262 Suction port

[0409] 264a End side

[0410] 264b end side

[0411] 266 Opening

[0412] 268 Funnel Area

[0413] 270 pipe socket

[0414] 272 Pipe socket axis

[0415] 274 Acute Angle

[0416] 276 End face

[0417] 278 Sealing device

[0418] 280 Suction channel device

[0419] 282 Circumferential direction

[0420] 284 Cleaning Strip

[0421] 286 Lining

[0422] 288 Scraping element

[0423] 290 Distribution device

[0424] 292 Opening

[0425] 294 Splash Guard

[0426] 296 Floor Cleaning Machine

[0427] 298 Accommodation

[0428] 300 Battery Device

[0429] 302 Opening

Claims

1. A floor cleaning machine, comprising: A rod device (60) having a proximal end (68); a guide handle (72) arranged on the rod device (60) in the region of the proximal end (68) and used to guide the floor cleaning machine on a floor (52) to be cleaned; a floor head (12); at least one cleaning roller (16) arranged on the floor head (12) and driven to rotate about a rotation axis (18) during cleaning operation of the floor cleaning machine; a fan device (102) for generating a suction flow; and a housing (58), wherein the fan device (102) is provided with a plurality of cleaning rollers (16) arranged on the floor head (12) and driven to rotate about a rotation axis (18) during cleaning operation of the floor cleaning machine. 2) is arranged in the shell, wherein the rod device (60) and the shell (58) are connected to each other, and wherein the shell (58) or the rod device is connected to the floor head (12), characterized in that the shell (58) has an upper side (66) facing the guide handle (72) and has a lateral side (138) oriented transversely to the upper side (66) and adjacent to the upper side (66), and a lifting handle (108) for lifting the floor cleaning machine is arranged on the upper side (66) and on the lateral side (138).

2. The floor cleaning machine according to claim 1, characterized in that A single carrying handle (108) is provided, which can be grasped from the upper side (66) and, alternatively, from the lateral side (138).

3. The floor cleaning machine according to claim 1 or 2, characterized in that: The carrying handle (108) comprises a bow (142), and in particular comprises a single bow (142), wherein the bow has at least one of the following: - the bow (142) extends between a first side (94) and an opposite second side (96) of the housing (58), wherein the first side (94) is oriented transversely to the upper side (66) and transversely to the transverse side (138), and the second side (96) is oriented transversely to the upper side (66) and transversely to the transverse side (138); - the bow (142) forms part of the upper side (66); - said bow (142) forms part of said lateral side (138); - the bow (142) delimits at least one handle recess (140) which is open toward the upper side (66); The bow (142) delimits at least one grip recess (140) which is open toward the lateral side (138).

4. The floor cleaning machine according to any one of the preceding claims, characterized in that At least one handle recess (140) for sinking fingers of a holding hand is arranged or formed on the housing (58), and the at least one handle recess is open toward the upper side (66) and toward the lateral side (138).

5. The floor cleaning machine according to claim 4, characterized in that At least one of the following: - the at least one handle recess (140) or the combination of handle recesses (140) has an L-shape or C-shape in cross section, the L-shape or C-shape having a first region (156a) and a second region (156b), wherein the first region (156a) is open toward the upper side (66) and the second region (156b) is open toward the lateral side (138), and the second region (156b) is oriented transversely and in particular perpendicularly to the first region (156a); - the at least one grip recess (140) extends between the top side (66) and the lateral side (138) and is in particular designed to be continuous; The at least one grip recess (140) is adapted in terms of its dimensions to the hand of the operator.

6. Floor cleaning machine according to any one of the preceding claims, characterized in that The carrying handle (108) is configured such that it can be grasped and gripped by moving the fingers of a holding hand toward the upper side (66) and alternatively by moving the fingers of a holding hand toward the lateral side (138).

7. The floor cleaning machine according to claim 6, characterized in that: When the housing (58) is grasped as required at the carrying handle (108) from the upper side (66), the palm of the grasping hand points outwardly away from the lever arrangement (60), and when the housing (58) is grasped as required at the carrying handle from the lateral side (138), the palm of the grasping hand points toward the guide handle (72).

8. Floor cleaning machine according to any one of the preceding claims, characterized in that The guide handle (72) protrudes laterally from the lever arrangement (60) and is located in a half-space delimited by the lever arrangement (60), and the upper side (66) and / or the lateral side (138) are located in this half-space.

9. Floor cleaning machine according to any one of the preceding claims, characterized in that When the floor cleaning machine is operated as specified, an operator stands on a floor (52) to be cleaned, the floor head (12) is placed on the floor (52) to be cleaned, and the operator holds the floor cleaning machine at the guide handle (72) and guides the floor cleaning machine on the floor (52) to be cleaned via the guide handle, with the lateral side (138) facing the operator.

10. Floor cleaning machine according to any one of the preceding claims, characterized in that The lateral side (138) is a rear side (92) facing away from the front end (20) of the floor head (12), wherein in particular the at least one cleaning roller (16) is arranged in the region of the front end (20) of the floor head (12).

11. Floor cleaning machine according to any one of the preceding claims, characterized in that At least one of the following: - a first side (94) and a second side (96) of the housing (58) adjoin the lateral side (138), wherein the first side (94) and the second side (96) are spaced apart from one another; - said lateral side (138) being spaced apart from said rod means (60); - the transverse side (138) has an axis of extension which is at least in partial regions parallel to the axis of extension (54) of the rod arrangement (60) or is oriented at an acute angle to the axis of extension (54) of the rod arrangement (60) at least in partial regions; The front side (90) of the housing (58) faces away from the lateral side (138), and the lever arrangement (60) is fastened to the housing (58) in the region of the front side (90).

12. Floor cleaning machine according to any one of the preceding claims, characterized in that With reference to the height direction (82), the housing (58) is arranged above the ground head (12), and the upper side (66) is arranged above the fan device (102).

13. Floor cleaning machine according to any one of the preceding claims, characterized in that A dirty fluid tank device (98) is removably arranged on the housing (58), wherein the dirty fluid tank device (98) can be removed via the lateral side (138) and can be placed on the housing (58).

14. The floor cleaning machine according to claim 13, characterized in that A recess is provided on the housing (58), the recess forming a receptacle (114) for the dirty fluid tank device (98) and the recess being open toward the lateral side (138).

15. The floor cleaning machine according to claim 13 or 14, characterized in that: The fan device (102) is positioned on the housing (58) above the dirty fluid tank device (98) with reference to the height direction.

16. Floor cleaning machine according to any one of the preceding claims, characterized in that The rod arrangement (60) is connected to the housing (58) in the region of a distal end (70).

17. Floor cleaning machine according to any one of the preceding claims, characterized in that A battery device (104) is mounted on the housing (58).

18. The floor cleaning machine according to claim 17, characterized in that: The battery device (104) is arranged in the region of an imaginary extension of the rod device (60) toward the ground head (12).

19. The floor cleaning machine according to claim 17 or 18, characterized in that: The battery device (104) is arranged between the underside of the housing (58) and the electronics unit (106), wherein the underside of the housing (58) faces the ground head (12).

20. The floor cleaning machine according to any one of claims 17 to 19, characterized in that: The shell (58) has a lower side opposite to the upper side (66), the lower side facing the ground head (12), and the shell has at least one of the following: - with reference to the height direction, the battery device (104) is positioned closer to the ground head (12) than the fan device (102); - with reference to the height direction, the fan device (102) is positioned closer to the upper side (66) than the battery device (104); - the battery device (104) is positioned on the housing (58) adjacent to the bottom side; The lower wall forms a support area for the battery device (104).

21. The floor cleaning machine according to any one of claims 17 to 20, characterized in that: The battery device (104) is arranged in a region of the front side (90) of the housing (58) facing away from the lateral side (138).

22. The floor cleaning machine according to any one of claims 17 to 21, characterized in that: The battery device (104) extends in the height direction to a height plane (124) located between the lower side and the upper side of the dirty fluid tank device (98) positioned on the housing.

23. The floor cleaning machine according to any one of claims 17 to 22, characterized in that: At least one of the following exists on the connection line between the carrying handle (108) and the lower side of the battery device (104): - the fan device (102); - Dirty fluid tank device (98); The underside of the battery device (104) faces the ground head (12), wherein in particular the connecting line is oriented at an acute angle to the axis of extension (54) of the rod device (60).

24. The floor cleaning machine according to any one of claims 17 to 23, characterized in that: An electronics unit (106) is arranged on the housing (58) between the battery device (104) and the distal end (70) of the rod device (60).

25. The floor cleaning machine according to any one of claims 17 to 24, characterized in that An interface device (100) for a dirty fluid tank device (98) is arranged on the housing (58) at an interface region, the interface region being assigned a height plane (118) on which a support for the dirty fluid tank device (98) is provided, and the height plane (118) is located between a lower side (120a) of the battery device (104) and an upper side (120b) of the battery device (104).

26. The floor cleaning machine according to claim 17, characterized in that: The battery device (300) is arranged in the region of the top side (66).

27. The floor cleaning machine according to claim 26, characterized in that At least one of the following: - an electronic device unit (106') is arranged between the battery device (300) and the carrying handle (108); - the battery device (300) is arranged above the fan device; - a tank device for cleaning liquid is removably mounted on the housing (58), in particular on an imaginary extension of the rod device (60); - the battery device (300) is arranged between the electronics unit (106') and the rod device (60); A receptacle (298) for the battery device (300) is formed in the region of the upper side (66) of the housing (58), wherein a recess of the receptacle (298) is open toward the upper side (66) and a cover for closing the receptacle is arranged on the upper side.

28. A floor cleaning machine according to any one of the preceding claims, characterised in that An electronics unit (106) is arranged on the housing (58) at a front side (90), wherein the front side (90) faces away from the lateral side (138).

29. The floor cleaning machine according to claim 28, characterized in that The electronics unit (106) is arranged on the housing (58) opposite the dirty fluid tank device (98).

30. The floor cleaning machine according to claim 28 or 29, characterized in that: The housing (58) has a wall (112) which separates a first receptacle (110) for the electronics unit (106) from a second receptacle (114) for the dirty fluid tank arrangement (98).

31. The floor cleaning machine according to claim 30, characterized in that At least one of the following: - the wall (112) is at least substantially parallel to the extension axis (54) of the rod arrangement (60); - the wall (112) delimits a third receptacle (116) for the battery device (104) relative to the dirty fluid tank device (98); - the wall (112) is oriented at least approximately parallel to the front side (90) of the housing (58); - the wall (112) is spaced apart from the carrying handle (108) in a transverse direction relative to the extension direction (54) of the rod arrangement (60).

32. A floor cleaning machine according to any one of the preceding claims, characterised in that An optical display device (160) is arranged on a front side (90) of the housing (58) facing away from the lateral side (138).

33. The floor cleaning machine according to claim 32, characterized in that: The front side (90) has a flat region (162) on which the optical display device (160) is arranged.

34. The floor cleaning machine according to claim 32 or 33, characterized in that: The optical display device (160) has a width of at least 50 cm with reference to its border line. 2 area.

35. The floor cleaning machine according to any one of claims 32 to 34, characterized in that The optical display device (160) displays the status of the floor cleaning machine.

36. The floor cleaning machine according to any one of claims 32 to 35, characterized in that The optical display device (160) provides a plurality of different display signals, wherein the display signals differ in particular in their color and / or duration.

37. A floor cleaning machine according to any one of the preceding claims, characterised in that The tank device (224) for cleaning fluid is arranged on the floor head (12) in an especially removable manner.

38. A floor cleaning machine according to any one of the preceding claims, characterised in that The cleaning roller (16) is arranged in a receiving portion (208) on the floor head (12) and can be removed from the floor head (12), wherein the receiving portion (208) is opened via an opening (212) on the side (26) of the floor head (12), a retainer (252) is arranged in the receiving portion (208) in a removable manner, and a suction opening device (258) is arranged or formed on the retainer, wherein the suction opening device (258) has at least one suction opening (262), which is aligned with the at least one cleaning roller (16) and is fluidically connected to the blower device (102), and the retainer (252) and the at least one cleaning roller (16) can be placed on the floor head (12) and removed via the opening (212).

39. The floor cleaning machine according to claim 38, characterized in that The holder (252) and the at least one cleaning roller (16) can (i) be inserted into or removed from the receptacle (208) independently of one another, or (ii) can be inserted into or removed from the receptacle (208) together.

40. The floor cleaning machine according to claim 38 or 39, characterized in that: An openable cover (246) is assigned to the receptacle (208) for closing the receptacle (208) on the side (26), wherein in particular a counter bearing (250) for the at least one cleaning roller (16) is mounted on the cover (246).

41. The floor cleaning machine according to claim 40, characterized in that The cover (246) is removable from the ground head (12).

42. The floor cleaning machine according to claim 40 or 41, characterized in that: The retainer (252) is firmly connected to the cover (246), and the retainer can be removed from the accommodating portion (208) and inserted into the accommodating portion (208) via the cover (246), and in particular, when the cover (246) is locked with the floor head (12), the retainer (252) is automatically correctly positioned in the accommodating portion (208), and at the same time, the at least one suction opening (262) is aligned with the at least one cleaning roller (16) and is fluidically connected to the blower device (102).

43. The floor cleaning machine according to any one of claims 40 to 42, characterized in that When the cover (246) is closed, the mouthpiece device (258) is positioned in the receiving portion (208) by the holder (252).

44. The floor cleaning machine according to any one of claims 38 to 43, characterized in that At least one of the following cleaning elements is arranged on the holder (252) and can be removed from the floor head (12) together with the holder (252): - at least one sweep bar (284); - at least one scraper strip (288), which in particular bears against a lining surface (286) of the at least one cleaning roller (16) or penetrates into the lining surface (286); - at least one splash guard (294), which covers the wall of the receiving portion (208) at least in a partial region towards the at least one cleaning roller (16); - an at least partial distribution device (290) for cleaning liquid, which is used to load the at least one cleaning roller (16) and / or the floor surface (52) to be cleaned with cleaning liquid.

45. The floor cleaning machine according to any one of claims 38 to 44, characterized in that The suction opening device (258) has at least one pipe socket (270).

46. ​​A floor cleaning machine according to any one of the preceding claims, characterised in that A tank device (224) for cleaning liquid is removably positioned on the floor head (12).

47. A floor cleaning machine according to any one of the preceding claims, characterised in that (i) a rod device for manual guidance by an operator is hinged on the ground head, wherein the rod device can swing relative to the ground head about at least one swing axis and a housing is arranged on the rod device, or (ii) a housing (58) is hinged on the ground head (12) in a manner that it can swing about at least one swing axis (40), wherein a rod device (60) is arranged on the housing (58), and wherein, in both cases (i) and (ii), the housing (58) accommodates the fan device (102).

Images