Floor cleaning machine having base module and cleaning module

Abstract

The invention relates to a floor cleaning machine comprising a floor head (12), at least one cleaning roller unit (24), a dirty fluid tank device (30) and a support device (100) for supporting the floor head (12) on a floor (14) to be cleaned, the support device (100) and the at least one cleaning roller unit (24) predefining a placement plane (96) for the floor head (12) on the floor (14) to be cleaned, characterized in that the cleaning roller unit (24) is arranged on the support device (100) for supporting the floor head (12) on the floor (14) to be cleaned. The floor head (12) has a base module (16) and a cleaning module (18), the cleaning module (18) being detachably connected to the base module (16) via a coupling device (20), on which cleaning module (18) at least one cleaning roller unit (24), a rotary bearing device (23) for rotatably supporting the at least one cleaning roller unit (24) and a dirty fluid tank device (30) are arranged, the support device (110) is arranged at least partially on the base module (16).

Description

Technical Field

[0001] The present invention relates to a floor cleaning machine, which includes a floor head, at least one cleaning roller unit, a dirty fluid tank device, and a supporting device for supporting the floor head on the floor to be cleaned. Among them, the supporting device and at least one cleaning roller define a predetermined placement plane of the floor head on the floor to be cleaned. Background Art

[0002] EP 3 750 464 A1 relates to a floor cleaning robot, which has a housing capable of autonomous movement and a unit removably fixed to the housing. Among them, the unit includes a brush chamber, a dirt receiving part, and a reserve tank for cleaning liquid.

[0003] EP 3 750 466 A1 discloses an autonomous floor cleaning device.

[0004] DE 10 2018 000 083 A1 discloses a cleaning robot, which includes a chassis, a driver for moving the cleaning robot on the surface to be cleaned, at least one sensor for identifying obstacles and / or stairs, a navigation system, and a cleaning device. The cleaning device is formed by at least two cleaning modules, and the two cleaning modules are respectively alternately or selectively connected to the chassis in a non-destructive detachable manner and can be interchanged relative to each other.

[0005] Additional cleaning devices are disclosed in US 2020 / 0337513 A1, CN 21138114 S7 U, EP 3 714 754 A1, WO2020 / 0125774 A1 or EP 2 ८५२ 472 B1.

[0006] US 2017 / 0055791 A1 discloses a vacuum cleaner.

[0007] EP 3 695 767 A1 discloses a floor cleaning device having a collection vessel and an ultrafine fiber brush roller. The floor cleaning device has a housing that can move along the surface to be cleaned. A battery is assembled on the housing and is electrically connected to a drive motor.

[0008] WO 2021 / 112354 A1 discloses a vacuum cleaner.

[0009] The cleaning device is disclosed in CN 111685647 A, US 2020 / 0315415 A, EP 3 117 754 A1, US 2015 / 0313434 A, JP 2015146958 A2 or EP 2 659 816 A2. Another cleaning device is disclosed in US 2006 / 0064828 A or WO 01 / 41618 A1. CN 108478109 A and CN 209489960 U are known robots for cleaning photovoltaic modules.

[0010] DE 10 2015 104 749 A1 discloses a manually operated or autonomous floor cleaner, and so does DE 10 2015104 750 A1.

[0011] Floor cleaning devices are described, for example, in EP 3 750 464 A1, EP 3 884 834 A1, US 2021 / 018620 A1 or KR 2012 06900U.

[0012] WO 2018 / 162092 A1 discloses a floor cleaning device with which autonomous cleaning of the ground surface can be carried out.

[0013] Floor cleaning devices are also disclosed, for example, in EP 2 574 264 B1, US 8,855,941 B1, DE 102 42 257 B4 and US 10,149,589 B2.

[0014] DE 20 2015 101 302 U1 discloses a cleaning device in the form of a vacuum cleaner.

[0015] Surface cleaning machines are known from WO 2016 / 058901 A1, WO 2016 / 058856 A1, WO 2017 / 063663 A1, WO 2016 / 058879 A1, WO 2016 / 058956 A1. A surface cleaning machine is also known from WO 2016 / 058907 A1.

[0016] A portable floor cleaning device is known from US 4,875,246, which has rollers driven by an electric motor.

[0017] A device for wet floor cleaning using a brush that can rotate about a rotation axis is known from DE 20 2009 013 434 U1.

[0018] A cleaning machine is known from CN 201 197 698 Y.

[0019] A device for cleaning floors or other hard surfaces is known from US 6,026,529.

[0020] A surface cleaning machine with a rotary brush is known from WO 2010 / 041185 A1.

[0021] A cleaning head for a floor cleaning machine is known from US 7,665,174 B2.

[0022] A floor cleaner is known from US 4,173,054, which includes a handle, a main body, a roller mechanism having a roller with a cleaning belt, a scraper, and a dirt fluid receiving portion.

[0023] A surface cleaning machine with a cleaning roller and a drive unit for driving the cleaning roller is known from WO 2013 / 106762 A2. A dirt housing into which the dirt is swept during rotation of the cleaning roller is provided. The dirt housing can be opened.

[0024] A floor scrubber is known from US 7,921,497 B2, which can be operated manually and includes a drive roller coupled to a scrubbing roller.

[0025] Another floor cleaning machine is known from WO 2015 / 086083 A1.

[0026] A hard floor cleaning device is known from US 3,789,449.

[0027] A self-propelled sweeper with a sweeping brush and an assigned dirt collecting chamber is known from DE 103 57 637 A1.

[0028] A household floor cleaning device with a wiping roller is known from DE 10 2007 054 500 A1.

[0029] A floor cleaning device with a housing, a hose facility, and a cleaning head is known from US 2006 / 0272120 A1.

[0030] A cleaning machine station for a cleaning machine is known from DE 10 2017 120 723 A1, wherein the cleaning machine station has a receiving chamber for the cleaning head of the cleaning machine.

[0031] A floor cleaning machine with a handle that is pivotally arranged on a base is known from WO 2005 / 087075 A1.

[0032] CN 107007215 A discloses a floor cleaning robot.

[0033] DE 20 2018 104 772 U1 discloses a dirty water collection mechanism, a dirty water detection mechanism, and a floor cleaning device.

[0034] The cleaning machine is also known from AU 2017101723 A4, CN 206687671 U, DE 20 2016 105 300 U1, US 9,622,637 B1, CN 2017101723 U, US 2017 / 0119225 A1, CN 205181250 U, CN 205181251 U, CN 205181256 U, DE 20 2016 105 299 U, WO 2017 / 059602 A1, WO 2017 / 059600 A1, WO2017 / 059601 A1, WO 2017 / 059603 A1, or DE 20 2016 105 301 U1.

[0035] DE 10 2022 102 924.7, which has not been previously published, discloses a floor cleaning device including a floor head and at least one cleaning roller that rotates about a rotation axis during the operation of the floor cleaning device. At least one cleaning roller is at least partially held on the floor head by a holding device, and the holding device can remove the at least one cleaning roller together with it from the floor head. This document is incorporated by reference in its entirety. More floor cleaning devices are disclosed and known in DE 10 2022 102937.9 and DE 10 2022 102 918.2, which have not been previously published, and their entire texts are incorporated by reference.

[0036] More floor cleaning devices are disclosed in CN 207850637 U and WO 21248591 A1. Summary of the Invention

[0037] The object of the present invention is to provide a floor cleaning machine of the type described at the beginning, which can be cleaned in a simple manner.

[0038] In the floor cleaning machine mentioned at the beginning, this object is solved according to the present invention in such a way that the floor head has a base module and a cleaning module, wherein the cleaning module is detachably connected to the base module via a coupling device. At least one cleaning roller unit, a rotational support device for rotatably supporting at least one cleaning roller unit, and a dirty fluid tank device are arranged on the cleaning module, and the support device is at least partially arranged on the base module.

[0039] In the solution according to the present invention, the floor head is divided into a base module and a cleaning module.

[0040] The cleaning module is a module that acts on the ground to be cleaned in a liquid-loading manner.

[0041] With the solution according to the invention, separation can be carried out, and in particular, the vast majority of the dirty fluid can be kept outside the basic module. As described above, the separation of the electrical basic components and the cleaning module can thus be carried out.

[0042] At least one cleaning roller unit and a rotational support device are positioned on the cleaning module.

[0043] The rotational support device can here form a complete rotational bearing for at least one cleaning roller unit, and in particular, the cleaning roller unit together with the cleaning module can thus be removed from the basic module.

[0044] The rotational support device on the cleaning module can also only form part of the entire rotational bearing for at least one cleaning roller unit.

[0045] For example, the cleaning module is configured such that it can be cleaned under a water jet with the cleaning roller unit and / or the dirty fluid tank device remaining on it or when they are removed.

[0046] Since the rotational support device is arranged on the cleaning module that can be removed from the basic module, the components of the rotational support device loaded with the dirty fluid can also be cleaned in a simple manner, for example, under a water jet.

[0047] In particular, the rotational support device is a fixed component of the cleaning module and remains on the cleaning module after removing at least one cleaning roller unit. Thus, for example, it is possible to clean the cleaning rollers of at least one cleaning roller unit in a cleaning machine.

[0048] It is also possible to facilitate the emptying of the dirty fluid tank device by removing the cleaning module from the basic module for this purpose.

[0049] Advantageously, in the longitudinal direction of the floor head, the basic module is followed by the cleaning module, wherein the rotational axis of at least one cleaning roller unit is oriented transversely and in particular perpendicularly to the longitudinal axis. This results in a compact structure. The cleaning module can be inserted into or removed from the basic module in a simple manner. The mechanical coupling and also, for example, the fluid coupling between the cleaning module and the basic module can be carried out in a simple manner.

[0050] Advantageously, at least one of the following features is provided:

[0051] - The forward movement direction of the floor head on the ground to be cleaned is parallel to the longitudinal direction;

[0052] - The forward movement direction of the floor head on the floor to be cleaned is transverse and in particular perpendicular to the rotational axis of at least one cleaning roller unit;

[0053] - The removal direction of the cleaning module from the basic module (i) is parallel or (ii) is transverse and in particular perpendicular to the longitudinal direction.

[0054] Thereby, a structurally simple and compact configuration of the floor head is obtained.

[0055] Furthermore, it is advantageous that at least one of the following features is provided:

[0056] - During the cleaning operation, the liquid action on the floor to be cleaned and the coupling-in of the liquid-laden dirty fluid are only carried out at the cleaning module on the floor head;

[0057] - During the cleaning operation, the flow of the liquid-laden dirty fluid only occurs at the cleaning module;

[0058] - During the cleaning operation, the loading of the liquid-laden dirty fluid on the floor head is basically only carried out at the cleaning module.

[0059] Thereby, the vast majority of the dirt loading can be concentrated to a certain extent at the cleaning module. The corresponding "load" on the basic module can be kept low. Thereby, the separation into an electrical basic module (basic module) and a "dirt module" (cleaning module) can be carried out in an effective manner.

[0060] In particular, here, the cleaning module is correspondingly loaded with the liquid-laden dirty fluid. In principle, it can be provided that, for example, a cleaning unit for sweeping dry dirt is provided on the basic module, or perhaps a cleaning module with a cleaning roller is placed far away from the cleaning module on the basic module.

[0061] Even more particularly advantageously, the cleaning module (including the "open" components of the rotational support device) is configured such that the cleaning module can be cleaned under a water jet after being removed from the basic module.

[0062] For example, a cleaning module having a dirty fluid tank device and a cleaning roller device, or when these components are removed from the cleaning module, can be cleaned under a water jet in a cleaning tank. Thereby, the entire device can be cleaned again in a simple and effective manner. The open (dirt-loaded) components on the rotational support device (such as the holder for at least one cleaning roller unit) can be directly rinsed clean. In general, it is sufficient to wipe the surface of the basic module for cleaning, because at most the basic module is splashed and loaded.

[0063] Advantageously, the cleaning module includes at least one of the following features:

[0064] - A first holder for at least one cleaning roller unit, wherein the at least one cleaning roller unit can in particular be removed from the first holder;

[0065] - A second holder for a dirty fluid tank device, wherein the dirty fluid tank device can in particular be removed from the second holder;

[0066] - A housing;

[0067] - A scraping device for scraping dirty fluid from at least one cleaning roller unit;

[0068] - A comb device for picking up hair from at least one cleaning roller unit;

[0069] - A cleaning device for conveying coarse dirt to at least one cleaning roller unit;

[0070] - At least one sub-region of a torque transmission device for driving at least one cleaning roller unit to rotate;

[0071] - A sub-region of a coupling device;

[0072] - A nozzle device for loading a cleaning liquid onto at least one cleaning roller unit and / or the floor to be cleaned;

[0073] - A sub-region of a suction path.

[0074] Thereby, dirt and liquid (including dirt-containing liquid) can be concentrated on the cleaning module. The first holder includes a rotational support device or is a rotational support device.

[0075] In principle, the floor cleaning machine can operate without a blower, or can operate using a blower device that generates a suction flow, wherein, in particular, the suction flow or a part of the suction flow is loaded onto at least one cleaning roller unit. In this case, it is then advantageous to place the blower device on the base module, or for example on a handle device that is in turn fixed to the base module. In particular, then, a first sub-region of the suction path is arranged on the base module, and a second part of the suction path is arranged on the cleaning module. If the cleaning module is properly placed on the base module, the first part of the suction path and the second part of the suction path provide a fluid-acting connection between the port device on the cleaning roller unit and the blower device, so as to obtain a corresponding suction flow loading on at least one cleaning roller unit during the operation of the floor cleaning machine.

[0076] Furthermore, it is advantageous to arrange at least one of the following features on the base module:

[0077] - A housing;

[0078] - Circuit devices;

[0079] - An encapsulation part for fluid sealing, especially for a circuit device;

[0080] - A drive motor for driving at least one cleaning roller unit to rotate;

[0081] - At least one sub-region of a torque transmission device for transmitting torque from the drive motor to at least one cleaning roller unit;

[0082] - An electrical interface for power supply;

[0083] - A battery device;

[0084] - At least one sensor unit for self-propelled and self-steering operation, especially for a floor head;

[0085] - A sub-region of a coupling device;

[0086] - A steering device and / or a drive device for the traveling movement of the floor head;

[0087] - A cleaning liquid tank device;

[0088] - A blower device;

[0089] - At least one pump, which is fluidly connected to the cleaning liquid tank device;

[0090] - A valve, such as a solenoid valve;

[0091] - A sub-region of a suction path.

[0092] In particular, electrical components or components that require an energy supply can be arranged on the basic module. Thus, for example, an electrical circuit guide can be formed in a simple manner.

[0093] More particularly advantageously, the coupling device causes a detachable mechanical fixation of the cleaning module to the basic module. Thus, in addition to other types of connections, mechanical retention of the cleaning module on the basic module can be achieved.

[0094] Advantageously, at least one of the following features is provided:

[0095] - The coupling device is configured such that it provides an electrical connection between the basic module and the cleaning module, which is especially detachable;

[0096] - The coupling device is configured such that it provides a fluid connection for the cleaning liquid between the basic module and the cleaning module, which is especially detachable;

[0097] - The coupling device is configured such that it provides a torque transmission part between the base module and the cleaning module for driving at least one cleaning roller unit to rotate, and in particular, the torque transmission part is detachable;

[0098] - The coupling device is configured such that it provides an air flow connection part between the base module and the cleaning module for supplying a suction flow to the cleaning module, and in particular, the air flow connection part is detachable.

[0099] The electrical connection part between the base module and the cleaning module can be set as needed. For example, sensors can be arranged on the cleaning module, which are used to identify the nature of the floor to be cleaned or for floor identification, or lighting devices can be arranged on the cleaning module for illuminating the floor to be cleaned.

[0100] It can also be advantageous to establish a fluid connection part for the cleaning liquid through the coupling device. Then, the cleaning liquid can be supplied to the cleaning module via the floor head. The corresponding cleaning liquid tank can be arranged on the floor head or the handle device. However, in principle, it is also possible to arrange the cleaning liquid tank on the cleaning module.

[0101] The torque of the drive motor can be transmitted to the cleaning module through the torque connection part on the coupling device, so that at least one cleaning roller unit can be driven to perform a rotational movement accordingly.

[0102] In principle, it is possible for the corresponding floor cleaning machine to operate without a blower, and in particular, the dirty fluid can be stripped from at least one cleaning roller unit via a scraping device and partly thrown into the dirty fluid tank device. It is also possible that the floor cleaning machine is provided with a blower device that provides a suction flow. The suction flow acts especially on at least one cleaning roller shaft unit. The suction flow can additionally also act on the floor to be cleaned and ensure the transportation of the dirty fluid to the dirty fluid tank device.

[0103] In this case, in particular, it is set that the coupling device also provides the coupling of the suction path between the base module and the cleaning module.

[0104] In one embodiment, the coupling device has a first sub-region placed on the base module and a second sub-region placed on the cleaning module. Wherein, when the first sub-region and the second sub-region cooperate, there is a coupling between the base module and the cleaning module. The coupling is especially a mechanical coupling for holding the cleaning module on the base module. Additionally, there can also be a torque coupling and / or a fluid coupling, and if necessary, there can also be an electrical connection coupling.

[0105] In a structurally simple embodiment, the coupling device has only one coupling site between the cleaning module and the base module. It can also be provided that the coupling device has a plurality of spaced-apart coupling sites. Thereby, for example, a separation between the torque coupling part and the mechanical fixing part can be achieved, or a secure mechanical hold can be achieved via a plurality of coupling sites.

[0106] In one embodiment, the dirty fluid tank device is arranged in a receiving chamber on the cleaning head and is in particular removably arranged. Thereby, the cleaning tank can be removed in a simple manner. However, it can also be arranged, for example, in a floating manner.

[0107] In particular, at least one of the following features is provided:

[0108] - The receiving chamber has an openable lid, wherein there is a passage to the receiving space of the receiving chamber when the lid is open;

[0109] - The dirty fluid tank device can be removed from the receiving chamber in a direction transverse to and in particular perpendicular to the rotation axis of at least one cleaning roller unit of the cleaning module;

[0110] - The dirty fluid tank device can be removed from the cleaning module upwards or downwards with respect to the placement plane side of at least one cleaning roller unit.

[0111] Thereby, a simple removability or insertability of the dirty fluid tank device on the cleaning module is obtained, in particular for being able to be emptied and for being able to clean the dirty fluid tank device itself. In addition, a large receiving volume for the dirty fluid on the dirty fluid tank device is obtained.

[0112] Alternatively, at least one of the following features can be provided:

[0113] - The receiving chamber is configured as a receiving cylinder;

[0114] - The dirty fluid tank device can be removed from the cleaning module in a direction parallel to the rotation axis of at least one cleaning roller unit.

[0115] For example, a relatively long cleaning roller with an effective cleaning effect can thus be provided in a simple manner.

[0116] In one embodiment, a tab is arranged on the base module, and a sub-region of the coupling device is arranged on the tab, wherein at least a part of the torque transmission device is arranged on the tab. Via the tab, a drive element for at least one cleaning roller unit can be provided on the base module in a simple manner. The torque from the drive element can be transmitted to at least one cleaning roller unit in a simple manner via the torque transmission device. In particular, a floor head with a cleaning roller unit of large length can thus be achieved.

[0117] Then it is particularly advantageous if the coupling device comprises sliding guide means along which the cleaning module can move towards the contact tab. The cleaning module can be fixed to the base module in a simple manner, and torque coupling can be achieved in a simple manner by pushing it towards the contact tab.

[0118] In one embodiment, the coupling device comprises a rotary bearing. As a result, relatively long cleaning rollers can be used, for example.

[0119] In one embodiment, an electronic module is arranged on the base module, the electronic module having a fluid-tight encapsulation. The fluid-tight encapsulation of the electronic module can be provided by the base module itself here, or additional encapsulation can also be present. In particular, the water-sensitive electronic or electrical components of the floor head are integrated into the electronic module.

[0120] In one embodiment, an openable cover or flap is arranged on the base module, wherein the encapsulation is placed on the cover or forms the cover. In particular, the cover or flap is arranged on the base module in a swingable manner. The electronic module can thus be integrated in a simple manner and positioned in a protected manner here.

[0121] In one embodiment, a handle device is provided, which is arranged on the floor head and by means of which a standing user can guide the floor cleaning machine on the floor to be cleaned. In this way, the cleaning of hard floors in particular can be carried out in a simple hand-guided manner.

[0122] Then it is advantageous if at least one of the following features is provided:

[0123] - The handle device can swing relative to the floor head about at least one swing axis, wherein in particular the swing axis is oriented parallel to the rotation axis of at least one cleaning roller unit;

[0124] - At least one of the following features is arranged on the handle device:

[0125] - A battery device;

[0126] - A cleaning liquid tank device;

[0127] - A sub-region of a conveying device for conveying cleaning liquid to the cleaning module;

[0128] - A user panel device;

[0129] - A fan device for generating a suction flow.

[0130] Effective floor cleaning can thus be carried out.

[0131] Alternatively, it is possible for the floor cleaning machine to be configured to be self-propelled and self-steering (in particular a "cleaning robot" with a wiping function).

[0132] Advantageously, at least two spaced-apart support elements are arranged on the base module. An effective placement plane is thereby obtained. The support elements are in particular support rollers or support slides. For example, the swivel rollers can also be part of the support device.

[0133] Advantageously, the dirty fluid tank device is configured such that it is arranged on the cleaning module in relation to at least one cleaning roller unit in such a way that in the cleaning operation the dirty fluid is coupled into the dirty fluid tank device from at least one cleaning roller unit without a blower. A structurally simple configuration is thereby obtained. A blower device can also be provided, which generates a suction flow. Here, during the operation of the floor cleaning machine, the suction flow acts on at least one cleaning roller unit and ensures that the dirty fluid is transported to the dirty fluid tank device. In particular, a separator is provided here, which separates the air flow from the liquid flow in order to prevent the blower device from being loaded with liquid. Preferably, the separator is arranged on the dirty fluid tank device and is in particular integrated into the dirty fluid tank device. Description of the Drawings

[0134] The following description of the preferred embodiments is used to explain the present invention in detail in conjunction with the drawings. Among them:

[0135] Figure 1 A schematic view of a first embodiment of the floor head of a floor cleaning machine according to the present invention is shown;

[0136] Figure 2 (a), (b), (c), (d) show different variants of the arrangement of the cleaning module and the base module and the arrangement of the dirty fluid tank device and the cleaning roller device on the cleaning module;

[0137] Figure 3 A perspective view of an embodiment of a hand-guided floor cleaning machine with a grip device is shown;

[0138] Figure 4 Shows according to Figure 3 A perspective view of the floor head of the floor cleaning machine;

[0139] Figure 5 Shows according to Figure 4 The floor head, wherein the cleaning module is removed from the base module;

[0140] Figure 6 Shows a view similar to Figure 5 wherein the cleaning roller has been removed from the base module, the lid has been opened, and the dirty fluid tank device has been removed;

[0141] Figure 7Perspective view (with the grip device removed) showing another embodiment of the floor head;

[0142] Figure 8 Shows a floor head according to Figure 7 in which the cleaning module is separate from the base module;

[0143] Figure 9 Shows a floor head according to Figure 7 in which the cleaning module is partially placed on the base module;

[0144] Figure 10 Shows another embodiment of the floor head after removing the grip device;

[0145] Figure 11 Shows a floor head according to Figure 10 in which the cleaning module is removed from the base module;

[0146] Figure 12 Shows a diagram similar to Figure 11 in which the cleaning roller, the dirty fluid tank device and the cover are removed from the cleaning module; and

[0147] Figure 13 Shows a schematic diagram of another embodiment of the floor cleaning machine according to the present invention. Detailed Description

[0148] Figure 1 A first embodiment of a floor cleaning machine according to the present invention, schematically shown and labeled 10, includes a floor head 12. During operation of the floor cleaning machine 10, the floor head 12 is placed on the floor 14 to be cleaned by means of a support device. This will be explained in detail below with reference to specific embodiments.

[0149] The floor head 12 can here be part of the floor cleaning machine 10 and is guided on the floor by a user standing on the floor 14 to be cleaned via a grip device (see Figure 3 ).

[0150] The floor head 12 itself can also be a self - propelled, self - steering floor cleaning machine ("cleaning robot").

[0151] The floor head 12 includes a base module 16 and a cleaning module 18. The cleaning module 18 is detachably connected to the base module 16 via a coupling device 20.

[0152] The cleaning module 18 has a first holder 22, and a cleaning roller unit 24 is held on the first holder in a rotatable manner about a rotation axis 26. The first holder 22 includes a rotational support device 23 for the cleaning roller unit 24 to ensure the rotatability of the cleaning roller unit about the rotation axis 26.

[0153] Furthermore, the cleaning module 18 also has a second holder 28. A soiled fluid tank device 30 is arranged on the second holder.

[0154] Since the cleaning module 18 (with the rotary bearing device 23) can be removed from the base module 16, the rotary bearing device 23, the cleaning roller unit 24 and the soiled fluid tank device 30 can be removed from the base module 16 together via the cleaning module 18 and can also be placed on the base module 16.

[0155] A longitudinal direction 32 is assigned to the floor head 12. The floor head 12 has a rear end 34 and a front end 36. When the cleaning module 18 is fixed to the base module 16 at the coupling device 20, at least one cleaning roller unit 24 is closer to the front end 36 than to the rear end 34.

[0156] Figure 1 An embodiment is shown in which the cleaning roller unit 24 is located at the front end 36.

[0157] The longitudinal direction 32 extends between the rear end 34 and the front end 36.

[0158] The axis of rotation 26 of the cleaning roller unit 24 is transverse to and in particular perpendicular to the longitudinal direction 32.

[0159] In the longitudinal direction 32, the cleaning module 18 follows the base module 16. With respect to the longitudinal direction 32, the cleaning module 18 is arranged in front of the base module 16.

[0160] During the cleaning operation of the floor cleaning machine 10, the floor head 12 has a forward movement direction 38. The axis of rotation 26 is transverse to and in particular perpendicular to this forward movement direction 38, and the longitudinal direction 32 is in particular parallel to the forward movement direction 38.

[0161] Figure 1 The forward movement direction 38 drawn therein extends in the direction from the base module 16 to the cleaning module 18. In principle, however, the forward movement direction can also be opposite to Figure 1 the direction 38 drawn therein, so that in this case the forward movement direction extends from the cleaning module 18 to the base module 16.

[0162] The soiled fluid tank device 30 is arranged on the cleaning module 18 in relation to the cleaning roller unit 24 in such a way that soiled fluid can be transported directly from the cleaning roller unit 24 and in particular without a blower into the soiled fluid tank device 30.

[0163] Soiled fluid here means flowing dirt, which is in particular liquid-containing.

[0164] In one embodiment, the cleaning roller unit 24 includes a textile lining, such as a microfiber lining. A scraping device is arranged on the cleaning module 18, which scrapes the dirty fluid from the textile lining and thereby ensures that the dirty fluid is coupled into the dirty fluid tank device 30.

[0165] A nozzle device 40 is arranged on the cleaning module 18. The nozzle device 40 is connected to the cleaning liquid tank via a conveying device (this will be described in detail with reference to specific embodiments below). Via the nozzle device 40, cleaning liquid (pure water or pure water provided with a cleaning agent and especially a surfactant-based cleaning agent) can be conveyed to the cleaning roller unit 24, especially for wetting the textile lining and / or directly to the floor 14 to be cleaned. Thereby, especially wet cleaning of hard floors can be performed via the floor cleaning machine 10. Improved dirt stripping characteristics of the floor 14 to be cleaned are obtained via wet cleaning.

[0166] During the operation of the floor cleaning machine 10, the cleaning roller unit 24 mechanically acts on the floor to be cleaned. In addition, the liquid loading of the floor 14 to be cleaned is performed directly via the nozzle device 40 and / or via the wet cleaning roller unit 24. In particular, the cleaning roller unit 24 accommodates the liquid-containing dirty fluid, and the liquid-containing dirty fluid is scraped off via the scraping device and coupled into the dirty fluid tank device 30 on the cleaning module 18.

[0167] In the illustrated embodiment, the cleaning roller unit 24 is constructed in two parts with a first cleaning roller 42 and a second cleaning roller 44. These cleaning rollers are located on respective shafts and have a common axis of rotation 26.

[0168] A torque transmission device 46 is provided, which is in torque-acting connection with the drive motor 48 and especially acts on the rotary bearing device 23. For example, the rotary bearing device 23 includes one or more driven holding elements for the cleaning roller unit 24.

[0169] [[ID=q15]]The drive motor 48 is arranged in the base module 16. The torque transmission device 46 is arranged on the base module 16 with a first sub-region 50 and is directly coupled to the drive motor 48 here. The torque transmission device is arranged on the cleaning module 18 with a second sub-region

[0170] In Figure 1 the embodiment pointed out, the cleaning roller unit 24 is driven in the middle on the cleaning module 18 while rotating the cleaning roller unit about the axis of rotation 26. The floor head 12 has a first side 54 and a second side 56 between the front side 36 and the rear side 34. The drive of the rotating roller unit 24 is carried out centrally between the first side 54 and the second side 56, that is, the torque is coupled into the cleaning roller unit 24 centrally via the torque transmission device 46. ​

[0171] The torque transmission device 46 includes, for example, a belt drive device or a toothed drive device.

[0172] The cleaning module 18 is mechanically fixed to the base module 16 in a detachable manner via a coupling device 20. In addition, torque is transmitted from a first sub-region 50 of the torque transmission device 46 to a second sub-region 52 via the coupling device. The torque transmission device 46 can accordingly be connected in a detachable manner via the coupling device 20.

[0173] In addition, the coupling device further includes a fluid line so that the cleaning liquid from the cleaning liquid tank can be conveyed to the nozzle device 40.

[0174] The coupling device 20 is configured such that when the cleaning module 18 is coupled to the base module 16, not only a mechanical connection for fixing is established, but also a torque transmission connection is established and a fluid connection for conveying the cleaning liquid to the nozzle device 40 is established. Accordingly, when the cleaning module 18 is removed from the base module 16, the mechanical fixing connection, the mechanical torque transmission connection, and the fluid connection are disassembled.

[0175] The drive motor 48 is arranged on the base module 16 in a protected manner. A circuit facility 58 is also arranged on the base module 16. Other components can also be arranged on the base module 16, such as a pump, a solenoid valve, a battery device, etc. for conveying the cleaning liquid from the cleaning liquid tank to the nozzle device 40.

[0176] In principle, the floor head 12 is configured such that during the cleaning operation of the floor cleaning machine 10, the main soiled fluid loading on the floor head 12 only exists on the cleaning module 18. Here, the removal of the soiled fluid from the floor 14 to be cleaned is regarded as the main soiled fluid loading. In principle, the base module 16 is also subject to splashing of the soiled fluid or the like, which is not regarded as the main soiled fluid loading.

[0177] During the cleaning operation, the cleaning liquid is applied to the floor 14 to be cleaned via the cleaning module 18. Via the cleaning module 18, the soiled fluid is guided away from the floor 14 to be cleaned and is received in the soiled fluid tank device 30 on the cleaning module 18. Therefore, the main soiled fluid loading on the floor head 12 is concentrated on the cleaning module 18.

[0178] In principle, the liquid-containing soiled fluid loading on the floor head 12 exists on the cleaning module 18, and the relevant soiled fluid flow also only exists on the cleaning module 18. In addition, the action on the floor head 12 related to the soiled fluid on the floor 14 to be cleaned only occurs on the cleaning module 18.

[0179] Thus, by means of the solution according to the invention, namely by substantially subjecting the basic module 16 to no loading by the soiled fluid and subjecting the cleaning module 18 to loading by the soiled fluid, a separation of the "soiled-fluid loading" can be carried out.

[0180] For example, the cleaning module 18 can be removed and cleaned, for example, under a water jet (at a faucet). For example, it is then not necessary to separately remove the cleaning roller unit 24 from the floor head 12 and also not necessary to remove the soiled-fluid tank device 30 from the floor head 12, but rather the device that is in principle subject to loading by the soiled fluid, namely the cleaning module 18, can be removed as a whole and cleaned, for example, under a water jet in a cleaning trough.

[0181] In one embodiment, it is provided that the cleaning fluid tank is also arranged on the cleaning module 18.

[0182] In principle, it is not necessary to provide an electrical coupling for the cleaning module 18 in the floor cleaning machine 10.

[0183] However, it is also possible that the coupling device includes a detachable electrical connection. This can be advantageous, for example, when a sensor element is arranged on the cleaning module 18 or, for example, when a cleaning fluid tank and a pump for supplying cleaning fluid to the nozzle device 40 are arranged on the cleaning module 18.

[0184] Electrical components, including the drive motor 48, the circuit arrangement 58, etc., can be arranged in a protected manner on the basic module 16 without being subject to major soiled-fluid loading.

[0185] The floor head 12 is to some extent divided into an electrical equipment unit (i.e., the basic module 16) and a mechanical cleaning unit (i.e., the cleaning module 18), and all components that are sensitive to liquids (and dirt) can be positioned in a protected manner on the basic module 16.

[0186] The floor cleaning machine 10 is supported on the floor 14 to be cleaned via a support device 60. The support device 60 includes support elements 62 arranged on the basic module 16. These support elements 62 are, for example, support rollers and can include steering rollers and / or drive wheels, for example, in the example of a self-propelled and self-steering floor cleaning machine.

[0187] The support device 60 also includes at least one support element arranged on the cleaning module 18. In particular, the cleaning roller unit 24 is such a support element on the cleaning module 18 (additionally, further support elements can also be provided on the cleaning module 18).

[0188] Thus, the support device 60 is configured such that in the cleaning operation, the floor head 12 is supported on the floor to be cleaned both at the cleaning module 18 and at the basic module 16.

[0189] In one embodiment, it is provided that the dirty fluid is coupled into the dirty fluid tank device 30 on the cleaning module 18 without a blower. Alternatively, it is also possible that a blower device 61 is provided, which generates a suction flow. The blower device 61 is in particular arranged on the floor head 12 (or on a grip device mounted on the floor head 12). A suction path 63 is guided from the blower device 61 to the cleaning module 18 and thus to the dirty fluid tank device 30. In particular, the suction path 63 passes through the coupling device 20.

[0190] When the cleaning module 18 is placed on the base module 16, an automatic air flow connection of the suction path 63 is preferably also achieved via the coupling device 20 for applying a corresponding negative pressure to the cleaning roller unit 24.

[0191] In particular, the suction path 63 is then arranged such that a negative pressure is applied to the corresponding port wall leading to the cleaning roller unit 24.

[0192] In the case where the blower device 61 is provided, a separator is in particular provided, which ensures the separation of gas and liquid and prevents liquid from possibly entering the blower device 61. In particular, the separator (designated by reference numeral 65 in Figure 1 ) is then arranged on the dirty fluid tank device 30 and is in particular integrated into the dirty fluid tank device.

[0193] Figure 2 Different examples of the arrangement of the base module 16 (with respect to the longitudinal direction 32) relative to the cleaning module 18 and different arrangements in the cleaning module 18 are shown in

[0194] According to Figure 2 the arrangement of (b) corresponds to the arrangement described in connection with Figure 1 . In the longitudinal direction 32, in the direction of the front end 36, the base module 16 is followed by the cleaning module 18.

[0195] In the present embodiment, the rotary roller unit 24 rotates on the floor 14 to be cleaned towards the base module 16. In a side view in the direction 64 according to Figure 2 (b), this corresponds to a counterclockwise rotation (designated by c).

[0196] This enables driving in the direction 66 (which is the same as the direction of the forward movement direction 38).

[0197] In Figure 2In the embodiment shown in

[0198] (a), again in the longitudinal direction 32, the respective basic module 16' is followed by the respective cleaning module 18'. The dirty fluid tank device 30' is arranged at the respective front end 36. The cleaning roller unit 24' arranged on the cleaning module 18' is arranged between the dirty fluid tank device 30' and the basic module 16'.

[0199] In this case, the cleaning roller unit 24 rotates in such a way that the rotation direction on the floor 14 to be cleaned points in the forward movement direction 38.

[0200] Viewed in the direction 64, this rotation is thus clockwise (indicated by u).

[0201] Therefore, the drive indicated by the direction 68 is opposite to the forward movement direction 38.

[0202] In this embodiment, the user must then overcome the reaction force, or there must be provided an additional walking drive device, which is then arranged in particular in the basic module 16'. Figure 2 (c) and Figure 2 In the embodiment shown in

[0203] (d), the front end 70 is formed on the respective basic module 72. In the longitudinal direction 32, the basic module 72 is followed by the cleaning module 74, where the cleaning module 74 is arranged behind the basic module 72 with respect to the front end 70 respectively. Figure 2 In the cleaning module 74 according to

[0204] (c), the cleaning roller unit is arranged at the rear end 76, and the dirty fluid tank device 78 is arranged between the cleaning roller unit and the basic module 72 accordingly. In this case, with respect to the direction 64, the rotation of the cleaning roller unit is set clockwise and the respective drive is opposite to the forward movement direction 38. Figure 2 In the embodiment shown in

[0205] (d), the cleaning roller unit is arranged between the dirty fluid tank device 78 and the basic module 72. With respect to the direction 64, the cleaning roller unit rotates counterclockwise. The respective drive is then parallel to the forward movement direction 38. Figure 2 In the respective rotation directions of the cleaning roller unit in the embodiments shown in Figure 2 [[ID=(a) to (d), the route that the dirty fluid collected from the floor 14 to be cleaned travels to the dirty fluid tank device and in particular to the port device of the dirty fluid tank device is minimized.

[0206] In principle, in all the embodiments described, the reverse direction can also be set, in which case splashing of the dirty fluid occurs (route extension).

[0207] In Figures 3 to 6 A specific embodiment of the floor cleaning machine according to the present invention, shown and designated by 80, includes a floor head 82 having a base module 84 and a cleaning module 86.

[0208] A grip device 90 is arranged on the cleaning module 86 so as to be swingable about a swing axis 88. The swing axis 88 is parallel to the rotation axis 92 of the cleaning roller unit 94, wherein the cleaning roller unit 94 is placed on the cleaning module 86.

[0209] The grip device 90 is swingably hinged to the floor head 82 via the swing axis 88 at the distal end, and is hinged to the base module 84 thereat. In addition to the swing axis 88, there may also be another swing axis transverse to the swing axis.

[0210] Due to the swingability about the swing axis 88, the height between the placement plane 96 and the proximal end of the grip device 90 of the floor cleaning machine 80 can be adjusted by the user. Therefore, the height can be matched according to the user's height. In addition, this also ensures, for example, the passability under furniture.

[0211] An arcuate handle 98 is placed at the distal end of the grip device 90, and a user panel device 100 is arranged in the area of or on the arcuate handle at the distal end of the grip device 90.

[0212] A cleaning liquid tank 102 for containing cleaning liquid is removably placed on the grip device 90.

[0213] In one embodiment, a battery device 104 for supplying electrical energy to the floor cleaning machine 80 is also placed on the grip device 90.

[0214] The base module 84 includes a housing 106. Support wheels 108 of a support device 110 are arranged on the housing 106. The support device 110 defines a placement plane 96, wherein the cleaning roller device 94 (when the cleaning module 86 is placed on the base module 84) is a part of the support device 110 and provides corresponding support on the floor 14 to be cleaned via the placement plane 96.

[0215] A drive motor (not shown in the figure) is arranged in the housing 106. When the cleaning module 86 is placed on the base module 84, the drive motor acts on the cleaning roller unit 94 via a corresponding torque transmission device.

[0216] In addition, a circuit facility is also arranged in the housing 106.

[0217] It is also possible to arrange a pump in the housing 106 for delivering the cleaning liquid to the cleaning module 86. In addition, in one embodiment, a valve for this conveying device, such as a solenoid valve, is also arranged in the housing 106.

[0218] The facility is waterproof here and is especially encapsulated.

[0219] The cleaning module 86 includes a base 112. A receiving chamber 114 is formed on the base 112 for the dirty fluid tank device 116. The receiving chamber 114 includes a receiving space 118 having sub-spaces 118a and 118b. A sub-region 120 of the torque transmission device extends between the sub-spaces 118a and 118b. This sub-region 120 is arranged on the cleaning module 86.

[0220] This sub-region includes a drive element 122, and shaft connection ends 124 are placed on both sides of the drive element. The drive element 122 is rotatable. Cleaning rollers 126 are respectively sleeved on the shaft connection ends 124 in a rotation-resistant manner. Thus, a rotational support device 124 is formed. The shaft connection ends 124 form a first holder 128 on the cleaning module 86 for holding the respective cleaning rollers 126 and thus the cleaning roller unit 94.

[0221] The cleaning rollers 126 rotate about the same rotation axis 92.

[0222] The dirty fluid tank device 116 includes a container 130 having a first region 132 and a second region 134. The first region 132 can be placed into the sub-space 118a, and the second region 134 can be placed into the sub-space 118b. When the dirty fluid tank device 116 is positioned in the receiving chamber 114, the bridge 136 of the dirty fluid tank device 116 connecting the first region 132 and the second region 134 is positioned above the sub-region 120 of the torque transmission device.

[0223] With respect to the placement plane 138 of the cleaning module 86, the dirty fluid tank device 116 can be placed into the receiving chamber 114 from above.

[0224] The cleaning module 86 includes a cover 140, and the receiving space 118 and thus the receiving chamber 114 can be closed upward through the cover.

[0225] In particular, the cover 140 can be removed as a whole. But in principle, it can also be fixed to the cleaning module 86 in a swingable manner, for example.

[0226] To remove the dirty fluid tank device 116 from the receiving chamber 114, remove the cover 140. Then, the dirty fluid tank device 116 can be removed upward from the receiving space 118.

[0227] A scraping device 142 is arranged on the dirty fluid tank device 116. The scraping device 142 is placed on the access device 144 of the dirty fluid tank device 116, and the dirty fluid peeled off from the cleaning roller unit 96 by the scraping device 142 can be directly coupled into the internal space of the dirty fluid tank device 116 via the access device 144.

[0228] The scraping device 142 is arranged such that when the dirty fluid tank device 116 and the cleaning roller 126 are positioned on the cleaning module 86, the scraping device 142 abuts against or in particular sinks into the lining surface of the cleaning roller 126.

[0229] In particular, the dirty fluid peeled off from the cleaning roller unit 96 by the scraping device 142 is coupled into the dirty fluid tank device 116 at the access device 144 without a blower.

[0230] A coupling device 146 is provided, and the cleaning module 86 can be detachably coupled to the base module 84 through this coupling device (see Figure 3 and Figure 4 ).

[0231] The coupling device 146 includes a first sub-region 148 placed on the base module 84 and a second sub-region 150 placed on the cleaning module 86.

[0232] In the illustrated embodiment, the first sub-region 148 includes an opening 152. The second sub-region 150 includes a sinking element 154 that enters the opening.

[0233] Here, a fixing element 156 can be provided for the coupling device 146, and this fixing element forms a locking element and is a separate part. For example, when the sinking element 154 sinks into the opening 152, the fixing element 156 can then be sleeved on the base module 84 above the first sub-region 148 to ensure that the cleaning module 86 is mechanically fixed to the base module 84.

[0234] A mechanical coupling part is integrated into the sinking element 154, and this mechanical coupling part provides a torque connection between a sub-region 120 of the torque transmission device and a sub-region of the torque transmission device on the base module 84 that is directly connected to the drive motor.

[0235] In addition, a fluid interface 158 is also integrated, and this fluid interface is particularly arranged on the sinking element 154 on the cleaning module 86. For this fluid interface 148, a mating interface 160 is provided on the base module 84, and this mating interface 160 particularly includes an opening into which the fluid interface 158 can sink.

[0236] When the base module 84 and the cleaning module 86 are mechanically connected to each other via the coupling device 146 such that there is a mechanical fixation of the cleaning module 86 to the base module 84 and there is also a torque coupling, then a fluidic connection is achieved such that the cleaning fluid from the cleaning fluid tank 102 can flow to the nozzle device 162 on the cleaning module 86 to a certain extent mediated by the base module 84.

[0237] The nozzle device 162 is arranged, for example, on the cover 140 or integrated into the cover.

[0238] It is also possible, for example, that the nozzle device 162 is arranged at the dirty fluid tank device 116 or at the receiving chamber 114.

[0239] The floor cleaning machine 80 is arranged by means of the handle device 90 for operation by a standing user. Its function is in principle the same as described above.

[0240] The cleaning module 86, the dirty fluid tank device 116, the rotary bearing device 127 and the cleaning roller unit 94 can be removed together from the base module 84 and can in particular be cleaned under a water jet. The shaft connection end 124 can also be cleaned under a water jet.

[0241] Figures 7 to 9 A further embodiment of the floor cleaning machine shown and designated 164 includes a floor head 166 having a base module 168 and a cleaning module 170.

[0242] In one embodiment, a handle device ( Figures 7 to 9 not shown in the figure) is mounted on the base module 168.

[0243] In principle, it is also possible that the floor cleaning machine 184 is configured as a self-steering and self-propelled floor cleaning machine. Then, corresponding travel drive means and a steering section are arranged on the base module 168.

[0244] A flap 172 is placed on the base module 168. The flap is articulated to the base module 168 via a swivel joint 174. The swivel axis 176 of the swivel joint 174 for the pivotability of the flap 172 on the base module 168 is parallel to the rotational axis of the corresponding cleaning roller unit 94 (the same reference numerals are used for the same elements as in the floor cleaning machine 80).

[0245] A coupling device 146' is provided which, in principle, has the same construction as the coupling device 146 described above, with a first sub-region 148 and a second sub-region 150. The second sub-region 150 is arranged on the cleaning module 170, while the first sub-region 148 is arranged on the base module 168.

[0246] When the flap 172 (as Figure 8When it is turned backward (as shown therein) and disengaged from the first sub-region 148 of the decoupling device 146, the cleaning module 170 can then be plugged onto the base module 168 using its second sub-region 150.

[0247] When the flap 172 is closed and folded onto the cleaning module 170 ( Figure 7 ), the flap 172 forms a fixing element similar to the fixing element 156, wherein, however, the fixing element of the floor cleaning machine 164 is integrated into the flap 172. The corresponding fixing element 178 on the flap 172 is indicated in Figure 8 and Figure 9 .

[0248] In an embodiment in which the floor cleaning machine 164 is configured to be self-steering and self-propelled, one or more sensor units 180 are arranged on the flap 172 and thus in the encapsulation and are thereby protected from soiled fluids and generally from liquids.

[0249] A space-saving integrated arrangement and configuration of the floor head 166 is thus obtained.

[0250] At least one sensor unit 180 includes, for example, sensors for position recognition in space or for distance recognition.

[0251] In Figures 10 to 12 the further embodiment of the floor cleaning machine according to the invention shown and designated 182 includes a floor head 184 having a base module 186 and a cleaning module 188.

[0252] In one embodiment, the floor cleaning machine 182 is configured as a self-steering and self-propelled floor cleaning machine, and a corresponding sensor unit 190 for position orientation in space is arranged on the base module 186.

[0253] The cleaning module 188 holds the cleaning roller unit 192 via a first retainer.

[0254] In the shown embodiment, the cleaning roller unit 192 includes two (sub-) cleaning rollers.

[0255] The cleaning module 188 has a base 194. A first retainer 196 for the cleaning roller unit 92 and here the corresponding sub-rollers is placed on the base 194. A rotational bearing device 197 is formed on the cleaning module 188 via the retainer 196.

[0256] A torque transmission device 198 is also placed on the base 194.

[0257] A soiled fluid tank device 200 is provided. The soiled fluid tank device 200 is detachably held on the cleaning module 188 via a second retainer 202.

[0258] A cleaning device 204 is placed on the dirty fluid tank device 200. The cleaning device 204 points in the direction of the floor 14 to be cleaned and has a small spacing from or is in contact with the placement plane 96.

[0259] The cleaning device 204 is used to collect coarse dirt and supply it to the cleaning roller unit 192 for entrainment.

[0260] An access device 206 is provided on the dirty fluid tank device 200, and a scraping device 208 is placed on the access device.

[0261] In one embodiment, a comb device 210 is arranged on the base 194. The comb device has a plurality of needles that act on the cleaning roller unit 192 and in particular rest against and penetrate into the cleaning roller unit. Hairs can be accommodated by these needles.

[0262] In one embodiment, the base 194 has spaced chambers 212 that are located above the cleaning roller unit 192 and in particular above the sub-rollers.

[0263] These chambers are closed by respective covers 214, where the covers are removable.

[0264] For example, a part of the comb device 210 is arranged on the cover 214, and the base 194 has corresponding continuous openings 216 such that the corresponding needles of the comb device 210 can act on the cleaning roller unit 192.

[0265] A coupling device is provided, which is in principle constructed the same as the coupling device 146. This coupling device provides a mechanical fixing part of the cleaning module 188 and the base module 186 with a fluid connection part (for guiding the cleaning liquid through) and a torque transmission coupling part.

[0266] In other respects, the floor cleaning machine 182 is the same as described above.

[0267] In Figure 13 Another embodiment of the floor cleaning machine according to the present invention, schematically shown and labeled 220, includes a floor head 222 having a base module 224 and a cleaning module 226.

[0268] Tabs 228 are arranged on the base module 224. A drive motor 230 is placed on the base module 224.

[0269] A drive element 232 is placed on the tab 228. The drive element is coupled to the drive motor 230 in a torque-acting manner via a torque transmission device 234. The torque transmission device 234 is placed on the tab 228 using a sub-region.

[0270] The drive element 232 also forms a rotary bearing for the cleaning roller unit 236.

[0271] The drive element 232 is also part of a coupling device 238 for torque-acting coupling (and mechanical fixation) of the cleaning module 226 to the base module 224.

[0272] The cleaning module 226 has a further rotary bearing 240, which is spaced apart from the drive element 232 with respect to the axis of rotation 242 of the cleaning roller unit 236 and which is a support for the drive element 232. The rotary bearing means 233 on the cleaning module 226 is formed by the further rotary bearing 240. The drive element 232 (which also includes a rotary bearing) is seated on the base module 224.

[0273] Via the drive element 232 and the rotary bearing 240, the cleaning roller unit 236 is to a certain extent suspended or clamped between the respective rotary bearings and is hereby rotatably supported on the cleaning module 226 and the base module 224.

[0274] In particular, the cleaning roller unit 236 is formed by a single cleaning roller.

[0275] Furthermore, on the cleaning module 226, a removable soiling fluid tank device 244 is also positioned in a mating manner with respect to the cleaning roller unit 236.

[0276] A sliding guide 246 is provided, via which the cleaning module 226 can be conveyed onto the drive element 232 in a direction transverse to the longitudinal axis 248 of the floor head 222. The sliding guide 246 is part of the coupling device 238.

[0277] The cleaning module 226 is detachably positioned in a free space 250 formed between the tab 228 and the front end 252 of the base module 224. The sliding guide 246 is located in the region of the front end 252.

[0278] As described, the insertion direction 254 of the cleaning module 226 is transverse to and in particular perpendicular to the longitudinal axis 248 and is hereby at least approximately parallel to the axis of rotation 242.

[0279] The cleaning module 226 can be inserted onto the base module 224 via the sliding guide 246 and is hereby conveyed onto the drive element 232. When the respective end position is reached, the cleaning roller unit 236 will be non-rotatably coupled to the drive element 232 and can be driven by this drive element to rotate about the axis of rotation 242 during the cleaning operation.

[0280] A receiving cylinder is formed on the free space 250, and the cleaning module 226 can be inserted via the receiving cylinder in the insertion direction 254 and can accordingly be removed in the direction opposite to the insertion direction 254.

[0281] In an embodiment according to Figures 1 to 12 the insertion direction or the removal direction of the corresponding cleaning modules 18, 86, 170 and the assigned basic modules 16, 84, 168, 186 is parallel to the longitudinal direction 32.

[0282] In the floor cleaning machine 220, the insertion direction 254 is transverse and in particular perpendicular to the longitudinal axis 248.

[0283] In the floor cleaning machine 220, a reversible cover 256 is indicated, on which (at least one) sensor unit 258 is arranged in a sealed manner. In this way, a self-propelled and self-steering floor cleaning machine 220 can be realized in a simple manner, wherein the corresponding electrical components are encapsulated with respect to the influence of liquids.

[0284] In Figure 13 possible forward movement directions 38', 38'' are drawn according to the construction scheme or the application situation. In the case of the forward movement direction 38', in this direction, the cleaning module 226 follows the basic module 224. In the case of the forward movement direction 38'', along this direction, the basic module 224 follows the cleaning module 226.

[0285] The above embodiments describe the operation of the floor cleaning machine without a blower. In principle, it is also possible that the corresponding floor cleaning machine according to the invention is provided with a blower device, which is positioned on the basic module or on the handle device (which is then placed on the basic module). The blower device provides a suction flow. By providing a corresponding suction path, a suction flow acts on at least one cleaning roller unit during the operation of the floor cleaning machine. In particular, a direct suction of the cleaning roller unit is achieved here. (Additional floor suction can also be carried out.) A corresponding suction channel connection is provided between the blower device and the cleaning module, wherein the suction channel connection in particular includes a suction path on the basic module and a suction path in the cleaning module, wherein again, by coupling the cleaning module to the basic module, an automatic fluid-acting connection is provided between the blower device and the cleaning module, and this fluid-acting connection is in particular automatically (and fluid-tightly) established when the cleaning module is coupled to the basic module.

[0286] List of reference numerals

[0287] 10 Floor cleaning machine (first embodiment)

[0288] 12 Floor head

[0289] 14 Floor to be cleaned

[0290] 16 Basic module

[0291] 18 Cleaning module

[0292] 20 Coupling device

[0293] 22 First retainer

[0294] 23 Rotating support device

[0295] 24 Cleaning roller device

[0296] 26 Axis of rotation

[0297] The second retainer 28

[0298] 28, 30' Sewage fluid tank device

[0299] 32 Longitudinal direction

[0300] 34 Rear end [[ID=३६]]

[0301] 36 Front end

[0302] 38, 38', 38'' Forward movement direction

[0303] 40 Nozzle device

[0304] 42 First cleaning roller

[0305] 44 Second cleaning roller

[0306] 46 Torque transmission device

[0307] 48 Drive motor

[0308] 50 First sub-region

[0309] 52 Second sub-region

[0310] 54 First side

[0311] 5б Second side

[0312] 58 Circuit facilities

[0313] 60 Support device

[0314] 61 Fan device

[0315] 62 Support element

[0316] 63 Suction path

[0317] 64 Direction

[0318] 65 Separator

[0319] 66 Direction

[0320] 68 direction

[0321] 70 front end

[0322] 72 basic module

[0323] 74 cleaning module

[0324] 76 rear end

[0325] 78 dirty fluid tank device

[0326] 80 floor cleaning machine

[0327] 82 floor head

[0328] 84 basic module

[0329] 86 cleaning module

[0330] 88 swing axis

[0331] 90 grip device

[0332] 92 rotation axis

[0333] 94 cleaning roller device

[0334] 96 placement plane

[0335] 98 bow-shaped handle

[0336] 100 user panel device

[0337] 102 cleaning liquid tank

[0338] 104 battery device

[0339] 106 housing

[0340] 108 support wheel

[0341] 110 support device

[0342] 112 base

[0343] 114 accommodation chamber

[0344] 116 dirty fluid tank device

[0345] 118 accommodation space

[0346] 118a sub-space

[0347] 118b sub-space

[0348] 120 sub-region

[0349] 122 drive element

[0350] 124 shaft connection end

[0351] 126 cleaning rollers

[0352] 127 Rotating support device

[0353] 128 first retainer

[0354] 130 containers

[0355] 132 First Area

[0356] 134 Second Area

[0357] 136 bridge pieces

[0358] 138 Placement flat side

[0359] 140 caps

[0360] 142 scraping device

[0361] 144 port device

[0362] 146, 146' coupling device

[0363] 148 First Sub-Area

[0364] 150 Second sub-area

[0365] 152 opening

[0366] 154 sunken components

[0367] 156 fixing elements

[0368] 158 fluid interface

[0369] 160 matching interface

[0370] 162 nozzle device

[0371] 164 floor cleaning machine

[0372] 166 basic modules

[0373] 170 cleaning module

[0374] 172 flip board

[0375] 174 swing joint

[0376] 176 swing axis

[0377] 178 fixing elements

[0378] 180 sensor elements

[0379] 182 floor cleaning machine

[0380] 184 Ground Head

[0381] 186 Base module

[0382] 188 Cleaning module

[0383] 190 Sensor unit

[0384] 192 Cleaning roller unit

[0385] 194 Base

[0386] 196 First retainer

[0387] 197 Rotating support device

[0388] 198 Sub-region

[0389] 200 Contaminated fluid tank device

[0390] 202 Second retainer

[0391] 204 Sweeping device

[0392] 206 Port device

[0393] 208 Scraping device

[0394] 210 Hair comb device

[0395] 212 Chamber

[0396] 214 Cover

[0397] 216 Opening

[0398] 220 Floor cleaning machine

[0399] 222 Floor head

[0400] 224 Base module

[0401] 226 Cleaning module

[0402] 228 Tab

[0403] 230 Drive motor

[0404] 232 Drive element

[0405] 233 Rotating support device

[0406] 234 Torque transmission device

[0407] 236 Cleaning roller unit

[0408] 238 Coupling device

[0409] 240 Rotating bearing

[0410] 242 Axis of rotation

[0411] 244 Contaminated fluid tank device

[0412] 246 Sliding guide part

[0413] 248 Longitudinal axis

[0414] 250 Free space

[0415] 252 Front end part

[0416] 254 Insertion direction

[0417] 256 Cover

[0418] 258 Sensor unit

Claims

1. Floor cleaning machine, said floor cleaning machine comprising a floor head (12; 82; 184; 222), at least one cleaning roller unit (24; 94; 192; 236), a dirty fluid tank device (30; 30'; 78; 116; 200; 244) and a support device (110) for supporting said floor head (12; 82; 184; 222) on a floor (14) to be cleaned, wherein, The support device (110) and the at least one cleaning roller define a placement plane (96) for the floor head (12; 82; 184; 222) on the floor (14) to be cleaned, characterized in that the floor head (12; 82; 184; 222) has a base module (16; 84; 166; 186; 224) and a cleaning module (18; 86; 170; 226), wherein the cleaning module (18; 86; 170; 226) is detachably connected to the base module (16; 84; 166; 186; 224) via a coupling device (20; 146; 146'; 238), and the at least one cleaning roller unit (24; 94; 192; 236), a rotational support device (23; 127; 197; 233) for rotatably supporting the at least one cleaning roller unit (24; 94; 192; 236), and the dirty fluid tank device (30; 30'; 78; 116; 200; 244) are arranged on the cleaning module (18; 86; 170; 226), and the support device (110) is at least partially arranged on the base module (16; 84; 166; 186; 224).

2. The floor cleaning machine according to claim 1, characterized in that, In the longitudinal direction (32) of the floor head (12; 82; 184; 222), the cleaning module (18; 86; 170; 226) follows the base module (16; 84; 166; 186; 224), wherein the rotational axis (26) of the at least one cleaning roller unit (24; 94; 192; 236) is transverse and in particular perpendicular to the longitudinal direction (32).

3. The floor cleaning machine according to claim 2, wherein Having at least one of the following features: - The forward movement direction (38; 38'; 38") of the floor head (12; 82; 184; 222) on the floor (14) to be cleaned is parallel to the longitudinal direction (32); - The forward movement direction (38; 38'; 38") of the floor head (12; 82; 184; 222) on the floor (14) to be cleaned is transverse and in particular perpendicular to the rotational axis (26) of the at least one cleaning roller unit (24; 94; 192; 236); - The removal direction (i) of the cleaning module (18; 86; 170; 226) from the base module (16; 84; 166; 186; 224) is parallel to or (ii) transverse and in particular perpendicular to the longitudinal direction (26).

4. The floor cleaning machine according to any one of the preceding claims, characterized in that Having at least one of the following features: - During the cleaning operation, the liquid application to the floor (14) to be cleaned and the liquid-containing dirty fluid coupling occur only at the cleaning module (18; 86; 170; 226) on the floor head (12; 82; 184; 222); - During the cleaning operation, the liquid-containing dirty fluid flow occurs only at the cleaning module (18; 86; 170; 226). - In a cleaning operation, the liquid-containing dirty fluid loading of the floor head (12; 82; 184; 222) is basically only carried out at the cleaning module (18; 86; 170; 226).

5. The floor cleaning machine according to any one of the preceding claims, characterized in that, The cleaning module (18; 86; 170; 226) is configured such that the cleaning module can be cleaned under a water jet after being removed from the base module (16; 84; 166; 186; 224).

6. The floor cleaning machine according to any one of the preceding claims, characterized in that, The cleaning module (18; 86; 170; 226) includes at least one of the following features: - A first holder (22; 128; 196) for the at least one cleaning roller unit (24; 94; 192; 236), wherein the at least one cleaning roller unit (24; 94; 192; 236) can in particular be removed from the first holder (22; 128; 196); - A second holder (28; 202) for the dirty fluid tank device (30; 30'; 78; 116; 200; 244), wherein in particular the dirty fluid tank device (30; 30'; 78; 116; 200; 244) can be removed from the second holder (28; 202); - A housing; - A scraping device (142) for scraping the dirty fluid from the at least one cleaning roller unit (24; 94; 192; 236); - A comb device (210) for picking up hair from the at least one cleaning roller unit (24; 94; 192; 236); - A cleaning unit (204) for conveying large dirt to the at least one cleaning roller unit (24; 94; 192; 236); - At least one sub-region of a torque transmission device (46; 234) for driving the at least one cleaning roller unit (24; 94; 192; 236) to rotate; - A sub-region of the coupling device (20; 146; 146'; 238); - A nozzle device (162) for loading a cleaning liquid onto the at least one cleaning roller unit (24; 94; 192; 236) and / or the floor (14) to be cleaned; - A sub-region of the suction path (63).

7. The floor cleaning machine according to any one of the preceding claims, characterized in that, On the base module (16; 84; 166; 186; 224), at least one of the following features is arranged: - A housing; - Circuit means (58); - In particular, a fluid-tight encapsulation for the circuit means (58); - A drive motor (48) for driving the at least one cleaning roller unit (24; 94; 192; 236) to rotate; - At least one sub-region of a torque transmission device (46; 234) for transmitting torque from the drive motor (48) to the at least one cleaning roller unit (24; 94; 192; 236); - An electrical interface for electrical power supply; - A battery device; - At least one sensor unit (258) for the self-propelled and self-steering operation of the floor head (12; 82; 184; 222) in particular; - A sub-region of the coupling device (20; 146; 146'; 238); - A steering device and / or a driving device for the traveling movement of the floor head (12; 82; 184; 222); - A cleaning liquid tank device (102); - A blower device (61); - At least one pump fluidly connected to the cleaning liquid tank device (102); - A valve; - A sub-region of the suction path (63).

8. The floor cleaning machine according to any one of the preceding claims, characterized in that, The coupling device (20; 146; 146'; 238) causes a detachable mechanical fixation of the cleaning module (18; 86; 170; 226) to the base module (16; 84; 166; 186; 224).

9. The floor cleaning machine according to claim 8, It is characterized by at least one of the following features: - The coupling device (20; 146; 146'; 238) is configured such that the coupling device provides an electrical connection between the base module (16; 84; 166; 186; 224) and the cleaning module (18; 86; 170; 226), which electrical connection is in particular detachable; - The coupling device (20; 146; 146'; 238) is configured such that the coupling device provides a fluid connection for the cleaning liquid between the base module (16; 84; 166; 186; 224) and the cleaning module (18; 86; 170; 226), which fluid connection is in particular detachable; - The coupling device (20; 146; 146'; 238) is configured such that the coupling device provides a torque transmission between the base module (16; 84; 166; 186; 224) and the cleaning module (18; 86; 170; 226) for driving at least one cleaning roller unit (24; 94; 192; 236) to rotate, which torque transmission is in particular detachable; - The coupling device (20; 146; 146'; 238) is configured such that the coupling device provides an air flow connection between the base module (16; 84; 166; 186; 224) and the cleaning module (18; 86; 170; 226) for providing a suction flow to the cleaning module (18; 86; 170; 226), which air flow connection is in particular detachable.

10. The floor cleaning machine according to claim 8 or 9, characterized in that, The coupling device (20; 146; 146'; 238) has a first sub-region on the base module (16; 84; 166; 186; 224) and a second sub-region on the cleaning module (18; 86; 170; 226), wherein, when the first sub-region and the second sub-region cooperate, there is a coupling between the base module (16; 84; 166; 186; 224) and the cleaning module (18; 86; 170; 226).

11. The floor cleaning machine according to any one of the preceding claims, characterized in that, The coupling has a plurality of spaced-apart coupling sites.

12. The floor cleaning machine according to any one of the preceding claims, characterized in that, The dirty fluid tank device (200) is arranged in a receiving chamber (212) on the cleaning module (188).

13. The floor cleaning machine according to claim 12, characterized in that Has at least one of the following features: - The receiving chamber (212) has an openable lid (214), wherein there is a passage to the receiving space of the receiving chamber (212) when the lid (214) is open; - The dirty fluid tank device (200) can be removed from the receiving chamber (212) in a direction transverse to and in particular perpendicular to the axis of rotation (26) of at least one cleaning roller unit (192) of the cleaning module (188); - The dirty fluid tank device (200) can be removed from the cleaning module (188) upward or downward relative to the placement plane side of the at least one cleaning roller unit (192).

14. The floor cleaning machine according to claim 12, characterized in that Has at least one of the following features: - The receiving chamber is configured as a receiving cylinder; - The dirty fluid tank device (244) can be removed from the cleaning module (226) in a direction parallel to the axis of rotation (26) of the at least one cleaning roller unit (236).

15. The floor cleaning machine according to any one of the preceding claims, characterized in that, A tab (228) is arranged on the base module (224), and a sub-region of the coupling device (238) is arranged on the tab, wherein at least a part of the torque transmission device (234) is arranged on the tab (228).

16. The floor cleaning machine according to claim 15, wherein, The coupling device (238) includes a sliding guide device (246), and the cleaning module (226) can move along the sliding guide device (246) and towards the tab (228).

17. The floor cleaning machine according to any one of the preceding claims, characterized in that, The coupling device (238) includes a rotating bearing (240).

18. The floor cleaning machine according to any one of the preceding claims, characterized in that, An electronic module is arranged on the base module (16; 84; 166; 186; 224), and the electronic module has a fluid-tight encapsulation part.

19. The floor cleaning machine according to claim 18, wherein, An openable lid (214) is arranged on the base module (186), and the encapsulation part is located on the lid (214) or forms the lid (214).

20. The floor cleaning machine according to any one of the preceding claims, characterized in that Has a grip device (90), which is arranged on the floor head (82), and a standing user can guide the floor cleaning machine on the floor (14) to be cleaned through the grip device.

21. The floor cleaning machine according to claim 20, characterized in that Has at least one of the following features: - The grip device (90) can swing relative to the floor head (82) about at least one swing axis (88), wherein, in particular, the swing axis (88) is oriented parallel to the axis of rotation (92) of the at least one cleaning roller unit (94); - At least one of the following features is arranged on the grip device (90): - A battery device; - A cleaning liquid tank device (102); - A sub-region of a conveying device for conveying cleaning liquid to the cleaning module (86); - A user panel device (100); - A blower device for generating a suction flow.

22. The floor cleaning machine according to any one of claims 1 to 20, characterized in that Has a self-propelled and self-steering structure.

23. The floor cleaning machine according to any one of the preceding claims, characterized in that, At least two spaced-apart support elements are arranged on the base module (16; 84; 166; 186; 224).

24. The floor cleaning machine according to any one of the preceding claims, characterized in that, The soiled fluid tank device (30; 30'; 78; 116; 200; 244) is configured and arranged on the cleaning module (18; 86; 170; 226) in relation to the at least one cleaning roller unit (24; 94; 192; 236) such that in a cleaning operation, the soiled fluid is coupled from the at least one cleaning roller unit (24; 94; 192; 236) into the soiled fluid tank device (30; 30'; 78; 116; 200; 244) without a blower, or a blower device (61) is provided.

Images