WO2024061626A1 - Dispositif de nettoyage des sols comprenant un réservoir et procédé d'utilisation d'un dispositif de nettoyage des sols - Google Patents

Dispositif de nettoyage des sols comprenant un réservoir et procédé d'utilisation d'un dispositif de nettoyage des sols Download PDF

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Publication number
WO2024061626A1
WO2024061626A1 PCT/EP2023/074419 EP2023074419W WO2024061626A1 WO 2024061626 A1 WO2024061626 A1 WO 2024061626A1 EP 2023074419 W EP2023074419 W EP 2023074419W WO 2024061626 A1 WO2024061626 A1 WO 2024061626A1
Authority
WO
WIPO (PCT)
Prior art keywords
floor
cleaning
basin
roller unit
cleaning roller
Prior art date
Application number
PCT/EP2023/074419
Other languages
German (de)
English (en)
Inventor
Nina Engelhardt
Original Assignee
Alfred Kärcher SE & Co. KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kärcher SE & Co. KG filed Critical Alfred Kärcher SE & Co. KG
Publication of WO2024061626A1 publication Critical patent/WO2024061626A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/145—Floor surfacing or polishing machines motor-driven with rotating tools with supply of cleaning agents
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
    • A47L11/201—Floor surfacing or polishing machines combined with vacuum cleaning devices with supply of cleaning agents
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Definitions

  • the invention relates to a floor cleaning device, comprising a floor head, the floor head defining a mounting plane for a floor to be cleaned, at least one cleaning roller unit which is arranged on the floor head and can be rotated about a rotation axis, a drive motor for a rotational movement of the at least one cleaning roller unit, at least a cleaning liquid tank, and a moistening device for supplying cleaning liquid from the at least one cleaning liquid tank to the at least one cleaning roller unit.
  • the invention relates to a method for operating a floor cleaning device, wherein the floor cleaning device comprises a floor head and the floor head defines a mounting plane for a floor to be cleaned, comprises at least one cleaning roller unit which is arranged on the floor head and rotates about a rotation axis during a cleaning operation of the floor cleaning device, and comprises a drive motor for the rotational movement of the at least one cleaning roller unit, in which the at least one cleaning roller unit is moistened with cleaning fluid during the cleaning operation of the floor cleaning device.
  • the DE 10 2020 118 774 A1 discloses a floor cleaning device for a floor cleaning machine with a feed device through which a liquid for cleaning a cleaning surface is dispensed, the feed device comprising at least one distribution pipe which extends substantially transversely to a travel direction and at least one outlet opening for dispensing the liquid has.
  • DE 20 2022 101 314 Ul discloses a floor cleaning device with a dirty fluid tank with a tank shell and a tank lid. A channel with an inlet opening and an outlet opening is arranged on the tank cover, the inlet opening serving to couple in dirty fluid and the outlet opening opening into the tank shell.
  • US 10,278,559 Bl discloses a floor cleaning system with a floor cleaning device.
  • WO 2016/058901 A1 discloses a surface cleaning machine, comprising at least one cleaning roller and a moistening device for applying cleaning liquid to the at least one cleaning roller.
  • a distributor for cleaning liquid is provided, which comprises at least one channel or is formed by at least one channel which extends at least approximately parallel to a longitudinal axis of the at least one cleaning roller and/or extends at least approximately parallel to a rotation axis of the at least one cleaning roller.
  • US 2,944,272 discloses a cleaning machine with a chamber for liquid and openings for dispensing liquid from the chamber.
  • US 2006/0228160 Al discloses a device for distributing liquids on a floor.
  • US 2006/0179599 A1 discloses a floor cleaning device with a liquid delivery system including a liquid distributor to distribute a cleaning liquid on a surface to be cleaned.
  • EP 3 884 834 Al US 2021/018620 Al or KR 2012 06900U are described.
  • WO 2018/162092 A1 discloses a floor cleaning device with which autonomous cleaning of a floor surface can be carried out.
  • a cleaning machine is known from CN 201 197 698 Y.
  • a surface cleaning machine with rotating brushes is known from WO 2010/041185 Al.
  • a cleaning head for a floor cleaning machine is known from US 7,665,174 B2.
  • a floor cleaner which comprises a handle, a main body, a roller mechanism with a roller with a cleaning belt, a scraper and a dirt fluid receptacle.
  • WO 2013/106762 A2 discloses a surface cleaning machine with a cleaning roller and a drive unit for driving the cleaning roller.
  • a dirt tray is provided into which the cleaning roller sweeps dirt as it rotates. The dirt tray can be opened.
  • a floor scrubber which is manually operated and comprises a drive roller which is coupled to a scrubbing roller.
  • a hard floor cleaning device is known from US 3,789,449.
  • a floor cleaning device with a housing, a hose arrangement and a cleaning head is known.
  • a cleaning machine station for a cleaning machine is known, the cleaning machine station having a receiving chamber for a cleaning head of the cleaning machine.
  • a floor cleaning machine with a handle is known, which is pivotally arranged on a base.
  • the CN 107007215 A discloses a floor cleaning robot.
  • the DE 20 2018 104 772 Ul discloses a dirty water collection mechanism and dirty water detection mechanism and a cleaning device.
  • the unpublished DE 10 2022 102 924.7 discloses a floor cleaning device, comprising a floor head and at least one cleaning roller, which rotates about an axis of rotation during operation of the floor cleaning device, the at least one cleaning roller being at least partially held on the floor head by a holding device, the holding device also the at least one cleaning roller can be removed from the floor head.
  • a floor cleaning device comprising a floor head and at least one cleaning roller, which rotates about an axis of rotation during operation of the floor cleaning device, the at least one cleaning roller being at least partially held on the floor head by a holding device, the holding device also the at least one cleaning roller can be removed from the floor head.
  • the humidifying device has at least one basin, which is assigned to the at least one cleaning roller unit, which sits on the floor head and which has a receiving volume for cleaning liquid, that the humidifying device has at least one inlet, via which cleaning liquid can be supplied to the receiving volume of the at least one basin, and that an opening device is arranged on the at least one basin, via which cleaning liquid from the at least one basin is provided to the at least one cleaning roller unit, the opening device being above in relation to a height direction perpendicular to the installation plane of the recording volume is arranged.
  • a distributor for the at least one cleaning roller is provided via the at least one basin, which has a buffer volume over the receiving volume.
  • the receiving volume can be filled with cleaning liquid until a liquid level reaches the opening device. Overflowing cleaning liquid then flows from the at least one basin through the entire opening device to the at least one cleaning roller unit.
  • cleaning liquid can be supplied evenly to the at least one cleaning roller unit over a large length range. Even if cleaning liquid is not supplied evenly to the basin itself, the intake volume still ensures that cleaning liquid is temporarily stored an equalization occurs with regard to the decoupling and thus supply to the at least one cleaning roller unit.
  • the application of cleaning liquid to the at least one cleaning roller unit is independent of the distance between the correspondingly acted upon area of the at least one cleaning roller unit and the at least one inlet.
  • the receiving volume as a buffer volume in combination with the opening device as an overflow opening device ensures a uniform longitudinal distribution of the liquid applied to the at least one cleaning roller unit.
  • the defined installation level of the floor head ensures that the at least one basin with its buffer function and overflow function has a defined position relative to the floor to be cleaned. This allows the corresponding function to be achieved when the floor is horizontally aligned with respect to gravity.
  • the function according to the invention can also be achieved if there is at least a slight inclination of the floor to be cleaned with respect to the direction of gravity.
  • the solution according to the invention also allows the cleaning liquid that is usually carried by the floor cleaning device to be used in an optimized manner.
  • the consumption of cleaning liquid can be kept low in an optimized manner because a targeted, uniform supply can take place.
  • the optimized use of cleaning fluid can also be achieved Avoid excessive (local) application of cleaning fluid to the floor to be cleaned. This in turn keeps the drying time for the floor short.
  • the at least one cleaning roller unit is quickly and evenly moistened, so that short start-up times for a cleaning operation are possible.
  • the at least one basin extends in a longitudinal axis which is parallel to the axis of rotation; the at least one basin has a uniform width transverse to a longitudinal axis; the opening device has at least one mouth opening which has a mouth normal which is oriented transversely and in particular perpendicular to the axis of rotation and/or a longitudinal axis of the at least one basin; a length parallel to the axis of rotation of the at least one basin or a combination of basins is at least 70 percent and in particular at least 80 percent and in particular at least 90 percent of a length of the at least one cleaning roller unit.
  • the opening device can be formed by one or more slots.
  • the opening device has a plurality of spaced mouth openings.
  • the mouth openings are arranged on a line, wherein the line is in particular parallel to the axis of rotation and/or the installation plane; the mouth openings are arranged at the same height in the height direction to a floor of the at least one basin, wherein the floor is a floor for the receiving volume; at least in one or more sub-areas, the mouth openings are evenly spaced from one another; the mouth openings are arranged and/or formed on a wall of the at least one basin; the mouth openings lead directly to the at least one cleaning roller unit, wherein in particular a length between an inlet of a mouth opening and an outlet to the at least one cleaning roller unit is at most or equal to 8 mm and in particular at most or equal to 5 mm and in particular at most or equal to 4 mm and in particular at most or equal to 3 mm and in particular at most or equal to 2 mm; a channel at a mouth opening between an inlet of the mouth opening and an outlet to the at least one cleaning roller
  • cleaning liquid can be supplied to the at least one cleaning roller unit directly from the at least one basin through the opening device, and a channel formed at the mouth opening (in particular in the form of a bore or the like) has a relatively short length of at most or equal to 8 mm or less on.
  • Arranging such a channel at a mouth opening parallel or transverse to the height direction and in particular at an acute angle to the height direction results in an optimized cleaning agent supply to the at least one cleaning roller unit.
  • a line density of orifices (as the number of orifices per unit length) is at least 0.4 cm 1 and in particular at least 0.5 cm 1 , an effective uniform distribution of cleaning fluid during supply to the at least one cleaning roller unit results with the advantages described above. It is advantageous if a mouth opening has a rounded wall at least towards the receiving volume and in particular is designed to be edge-free at least towards the receiving volume and/or an interior of the at least one basin. This makes it possible to keep turbulence or the like to a minimum when the liquid is extracted from the at least one basin.
  • the at least one inlet opens into the at least one basin, or an input side of a channel device is fluidly connected to the at least one inlet, with cleaning liquid being coupled into the at least one basin via an output side of the channel device.
  • cleaning liquid can be coupled into the at least one basin in a structurally simple manner in order to first fill the receiving volume and then, when the receiving volume is filled, to be able to apply cleaning liquid to the at least one cleaning roller unit via overflow through the opening device.
  • the number of inflows can be kept low. In particular, a single inlet is sufficient. This in turn allows the design effort to be kept low in order to bring cleaning liquid from the cleaning liquid tank into the at least one basin.
  • an output side of the channel device is arranged on a longitudinal side of the at least one basin, in particular with at least one of the following: the output side extends along a longitudinal side of the at least one basin; the exit side is opposite the opening device.
  • An input side of the channel device is the side via which cleaning liquid is coupled in.
  • the output side is the side via which cleaning liquid is coupled out of the channel device. If the output side extends on a long side of the at least one basin, can be coupled into this cleaning liquid over a large area of the at least one basin in order to first fill the receiving volume and then to achieve an overflow. A direct action on the opening device via the channel device is not provided.
  • the channel device comprises at least one of the following: at least one collecting channel which is fluidically connected to the at least one inlet; at least one distributor which distributes cleaning liquid to a plurality of channels; at least one feed channel from which cleaning liquid is directly coupled into the at least one basin via the corresponding outlet side.
  • Cleaning fluid can be drained from the inlet through at least one collecting channel in order to then make it available to at least one basin (and its receiving volume).
  • cleaning liquid can be distributed over several channels and then in particular distributed over several basins.
  • At least a first basin and a second basin are provided, the second basin being spaced apart from the first, with at least one of the following: the at least one distributor is arranged between the first basin and the second basin and is in particular as distribution channel formed; a first feed channel is assigned to the first basin and a second feed channel is assigned to the second basin, in particular the first feed channel and the second feed channel lying on a line; the at least one inlet is connected to the at least one collecting channel, with the at least one collecting channel leading to the at least one distributor.
  • the first basin and the second basin can be simultaneously filled with regard to the receiving volume, and an overflow can then be achieved. This results in a uniform application of cleaning liquid over a large length range of the at least one cleaning roller unit.
  • a plurality of separate basins are provided. This results in a relatively quick and simplified infestation process in order to be able to infest receiving volumes in separate basins and to achieve a uniform application of cleaning liquid to the at least one cleaning roller unit via an overflow function. Furthermore, when the floor head is tilted (when the angle of the axis of rotation to the floor is increased), a large amount of cleaning liquid can be held in the pool combination (multiple pools). It is structurally advantageous if the at least one inlet is arranged on or near an end face of the at least one cleaning roller unit and in particular if exactly one inlet is provided (which can also be arranged at a location other than near an end face). As a result, the guide path between the cleaning liquid tank and a distributor for cleaning liquid can be kept short and the amount of wiring can be kept low.
  • the at least one cleaning roller unit is held on a holding device or cassette, which is detachably seated on the floor head, with the at least one basin being arranged on the holding device of the cassette.
  • a holding device or cassette which is detachably seated on the floor head, with the at least one basin being arranged on the holding device of the cassette.
  • a wall is arranged on the holding device of the cassette, which covers the at least one cleaning roller unit towards a body of the floor head, and the at least one basin is arranged on the wall.
  • the body of the ground head is, for example, a driving body.
  • the wall forms a type of protective wall in order to prevent liquid exposure, in particular to an interior of the body. If the at least one basin is arranged on the wall, a simple structural design results. The number of components required can be kept low. This results in simplified production.
  • the opening device is arranged above at least a section of the at least one cleaning roller unit in relation to the height direction and in particular is arranged at a height greater than half the diameter of the at least one cleaning roller unit above the installation level. In particular, this height is greater than 75% of Diameter of the at least one cleaning roller unit. This allows the at least one cleaning roller unit to be moistened from above, so to speak, and thereby moistened effectively.
  • a sweeping device for coarse dirt is provided, which is assigned to the at least one cleaning roller unit and which is arranged on the floor head. This also allows larger dirt particles to be removed from a floor that needs to be cleaned.
  • At least one dirty fluid tank is provided, via which dirty fluid removed from the at least one cleaning roller unit via at least one scraper element can be received.
  • the at least one dirty fluid tank is releasably positioned on the floor head.
  • the at least one dirty fluid tank can hold dirty fluid (cleaning fluid with dirt particles).
  • a blower-free “throwing” of dirty fluid into the dirty fluid tank can be provided. It is also possible that the stripping element removes dirty fluid from the at least one cleaning roller unit and then suction takes place.
  • the floor cleaning device is designed as a self-propelled and self-cleaning floor device (“mopping robot"), in particular the floor head being or comprising a driving body on which a travel drive for the floor cleaning device and a navigation device for the floor cleaning device are arranged. This allows wet floor cleaning to be carried out autonomously on the floor to be cleaned.
  • a rod device which is articulated to the floor head, with the floor cleaning device being able to be guided over a floor to be cleaned by a standing operator.
  • the standing operator stands on the floor to be cleaned and holds and guides the floor cleaning device via the rod device.
  • the floor head stands above the installation level on the floor to be cleaned.
  • the at least one cleaning roller unit is located on the installation plane and at least one further floor contact element, which is spaced apart from the at least one cleaning roller unit, is provided. This results in a defined installation plane, which in turn defines the position of the at least one basin in relation to the floor to be cleaned.
  • the at least one floor contact element can be, for example, a further cleaning roller unit, a roller or a wheel, or a skid.
  • cleaning liquid is conveyed from a cleaning liquid tank into a receiving volume of a basin, the basin being arranged on the floor head, and cleaning liquid from the receiving volume of the basin via an opening device Basin is applied to the at least one cleaning roller unit, with cleaning liquid overflowing into the receiving volume flowing through the opening device to the at least one cleaning roller unit.
  • the method according to the invention has the advantages already explained in connection with the floor cleaning device according to the invention.
  • the method according to the invention can be used on the floor cleaning device according to the invention or the floor cleaning device according to the invention can be operated with the method according to the invention.
  • the conveyance of cleaning liquid from the cleaning liquid tank into the receiving volume of the basin can be gravity-driven or, for example, conveyed by a pump.
  • Figure 1 is a perspective view of an exemplary embodiment of a floor device with a floor head
  • Figure 2 is a bottom view of the floor cleaning device according to Figure 1 in the direction A according to Figure 1, with a cleaning roller unit removed and a tank combination with a dirty fluid tank and a cleaning liquid tank being removed;
  • Figure 3 shows an exemplary embodiment of a removed holding device or cassette with a cleaning roller unit fixed thereon, the holding device or cassette according to Figure 3 sitting on the floor cleaning device according to Figure 1;
  • Figure 4 shows the holding device or cassette according to Figure 3 with the cleaning roller unit removed, with a sweeping device being visible;
  • Figure 5 is a partial side sectional view of the floor head according to Figure 1 in the area of the holding device or cassette and cleaning roller unit and sweeping device;
  • Figure 6 is a bottom view of a partial representation of the holding device or cassette according to Figure 4 in the direction B according to Figure 4;
  • Figure 7 is a rear view of a partial representation of the holding device or cassette according to Figure 4 in the direction C according to Figure 4;
  • Figure 8 is a plan view of a partial representation of the holding device or cassette according to Figure 7;
  • Figure 9 is a side sectional view along line 9-9 according to Figure 8.
  • Figure 10 is an enlarged partial sectional view along line 10-10 according to Figure 8.
  • Figure 11 schematically shows the functioning of a basin with inlet and opening device in a perspective view
  • Figure 12 is a schematic sectional view of the basin according to Figure 11;
  • Figure 13 shows a schematic representation of a known humidification device to explain the solution according to the invention.
  • Figure 14 shows a schematic view of a further exemplary embodiment of a floor cleaning device according to the invention, which is designed to be operated by an operator standing on the floor to be cleaned.
  • FIG. 1 An exemplary embodiment of a floor cleaning device according to the invention is a self-propelled and self-steering floor cleaning device ( Figures 1, 2).
  • This floor cleaning device 10 includes a floor head 12, which includes a self-propelled and self-steering driving body 14.
  • the floor cleaning device 10 with its moving body 14 is placed on a floor 16 to be cleaned (FIG. 5).
  • a travel drive is arranged on the travel body 14 (not shown in the drawings). This drives wheels 18.
  • a first wheel 18a and a second wheel 18b are provided.
  • the wheels 18 are driven to rotate about a wheel axle 19 by the travel drive.
  • a support roller 20, which has an axis of rotation 21, is also arranged on the driving body 14.
  • the support roller 20 can be pivoted about a (steering) axis 22, which is perpendicular to the axis of rotation 21.
  • the support roller 20 is a passive steering roller which is not driven (and in particular is not driven in a rotation about the axis of rotation 21 and in a pivoting movement about the axis 22).
  • a change in direction of the floor cleaning device 10 on the floor head 12 is carried out by appropriately controlling the wheels 18a and 18b by a control device which is arranged on the driving body 14, whereby these can be rotated at different speeds, in particular for a change in direction.
  • the support roller 20 is an active steering roller for controlling the direction of the ground device 10.
  • the floor cleaning device 10 has a main direction of travel 24.
  • This main direction of travel 24 is the direction of travel of the floor cleaning device 10 when the support roller 20 is aligned so that its axis of rotation 21 is parallel to the wheel axis 19. It is a forward direction of travel for the floor cleaning device 10.
  • the floor head 12 has an installation level 26 above the traveling body 14 (see FIG. 18).
  • the installation level 26 is through the wheels 18 and the Support roller 20 specified.
  • a cleaning roller unit 28 is located on the installation level 26.
  • a navigation device 30 is arranged on the driving body 14.
  • the navigation device 30 is a sensor device and includes at least one sensor element.
  • the navigation device is connected to the control device for controlling the ferry operation of the floor cleaning device 10 in a signal-effective manner.
  • the navigation device includes, for example, one or more optical sensors, one or more radar sensors, one or more IR sensors and/or one or more ultrasonic sensors.
  • the traveling body 14 has a front end 32 and a rear end 34 in relation to the main direction of travel 24.
  • a tank combination 36 comprising a dirty fluid tank 38 and a cleaning fluid tank 40 is removably arranged on the traveling body 14.
  • Dirty fluid is understood to mean a fundamentally flowable fluid. It can be composed of dirt particles or it can be a mixture of dirt particles and a liquid (in particular water, possibly with a surfactant cleaning agent additive).
  • the driving body 14 has a bottom 42 and a top 44 opposite the bottom.
  • the wheels 18 and the support roller 20 are arranged on the underside 42.
  • the navigation device 30 is arranged at least in a partial area on the top 44.
  • the traveling body 14 has a wall 46.
  • a bumper 48 (bumper) is arranged on the wall 46 in the area of the front end 32, with which collisions of the floor cleaning device 10 with obstacles can be tactilely detected.
  • the impact body 48 is or includes one or more tactile sensor elements that are connected to the control device in a signal-effective manner.
  • a center 50 is assigned to the bottom head 12 (Figure 1).
  • the center 50 is a geometric center of gravity of the bottom head 12 (with tanks 38, 40).
  • This center 50 can be assigned a height direction (axial direction) 52 perpendicular to the installation plane 26 and then a circumferential direction accordingly.
  • the impact body 48 extends on the wall 46 in the circumferential direction in particular over an angular range of at least 120° and preferably of at least 150°.
  • cliff sensors 54 are arranged, which are connected to the control device in a signal-effective manner. These cliff sensors 54 serve to prevent the floor cleaning device 10 from falling, for example when reaching a staircase, by correspondingly detecting "cliffs".
  • the floor cleaning device 10 has a particularly rechargeable battery device, which is arranged on the driving body 14.
  • a corresponding battery compartment 56 (see FIG. 2) is provided, which is accessible from the underside 42 and is closed by a cover 58.
  • a sensor 60 for carpet detection can be arranged on the driving body 14.
  • a WiFi module can be arranged on the driving body 14.
  • charging contacts 62 are arranged on the chassis 14 in order to be able to charge the battery device at a charging station.
  • charging contacts 62 are arranged on the underside 42.
  • the floor head 12 In a plan view from above in the height direction 52 on the top 44, the floor head 12 has an outer contour 64 in the form of a circle. A distance in the radial direction perpendicular to the height direction 52 from the center 50 to an upper edge of the wall 46 is at least approximately the same (corresponding to the radius of the circle).
  • the outer contour 64 it is also possible in principle for the outer contour 64 to have an approximately circular shape, in which case the distance to the center 50 from the outer contour deviates by a maximum of 15% from a corresponding mean value.
  • the driving body 14 (the ground head 12 without the tank combination 36) has the outer contour in the shape of a circular section with a first chord 66.
  • the first chord 66 is oriented transversely and in particular perpendicular to the main direction of travel 24.
  • it is oriented at least approximately parallel to the wheel axle 19.
  • the first tendon 66 lies beyond the center 50. It lies at the rear end 34.
  • the center 50 lies between the first tendon 66 and the front end 32.
  • the tank combination 36 also has the shape of a second circular section with a second chord 68 as an outer contour.
  • the first circular section of the outer contour 64 of the driving body 14 and the second circular section of the outer contour of the tank combination 36 complement each other to form the circular outer contour of the floor head 12.
  • a receiving shaft 70 for the cleaning roller unit 28 is arranged or formed on the driving body 14.
  • the receiving shaft 70 sits on the driving body 14 in the area of the rear end 34.
  • the receiving shaft 70 has a longitudinal extension direction 72, which is transverse and in particular perpendicular to the main direction of travel 24.
  • the longitudinal extension direction 72 is also at least approximately parallel to the wheel axle 19.
  • the longitudinal extension direction 72 is parallel to the first chord 66.
  • the receiving shaft is open to the underside 42 of the driving body 14, which is a floor side (which faces the installation level 26), so that a cleaning roller unit 28 held in the receiving shaft 70 can act on the floor 16 to be cleaned.
  • the receiving shaft 70 is closed by a cover wall 74 towards the top 44 and thus away from the bottom 42.
  • the driving body has a wall 76, which delimits the receiving shaft 70 to an interior of the driving body 14.
  • the travel drive, the control device, etc. are arranged in the interior of the driving body 14.
  • the driving body 14 has a first lateral side 82 and an opposite lateral side 84.
  • the lateral sides 82, 84 are related to the main direction of travel 24.
  • the second lateral side 84 follows the front end 32 in the clockwise direction, then the rear end 34 of the driving body 14 and then the first lateral side 82.
  • a side wall 86 sits on the first lateral side 82 on the driving body 14. This side wall 86 delimits the receiving shaft 70 towards the first lateral side 82.
  • the side wall 86 has an extension transversely to the first tendon 66.
  • the side wall 86 follows the circular outer contour 64.
  • the receiving shaft 70 has an opening 88 on the second lateral side 84 opposite the side wall 86.
  • a drive motor 90 for the cleaning roller unit 28 is located on the side wall 86.
  • the drive motor 90 is supplied with electrical energy by the battery device in the battery compartment 56.
  • the drive motor 90 it is also possible for the drive motor 90 to sit behind the wall 76, for example.
  • a torque transmission device is then arranged on the side wall 86.
  • the drive motor 90 is assigned a drive shaft 92, which can be rotated about a rotation axis 94.
  • the drive shaft 92 projects into the receiving shaft 70. It is connected to the cleaning roller unit 28 in a rotationally fixed manner during operation of the floor cleaning device 10.
  • the drive shaft 92 drives a rotational movement of the cleaning roller unit 28 about an axis of rotation which coincides with the axis of rotation 94.
  • the drive shaft 92 is directly connected to the drive motor 90, i.e. it is an output shaft of the drive motor 90 or coaxially connected to such an output shaft.
  • the drive shaft 92 is mounted so that it can rotate. In the embodiment shown, it is mounted directly on the drive motor 90. It forms a first pivot bearing 96 for the rotating mounting of the cleaning roller 28 during rotation about the rotation axis 94.
  • the axis of rotation 94 is transverse and in particular perpendicular to the main direction of travel 24.
  • the axis of rotation 94 is parallel to the installation plane 26.
  • the axis of rotation 94 lies transversely and in particular perpendicular to the height direction 52 (which is a normal axis to the installation plane 26).
  • the axis of rotation 94 lies in particular parallel to the wheel axis 90. Furthermore, it lies in particular parallel to the first chord 66.
  • the longitudinal direction 72 of the receiving shaft 70 is parallel to the axis of rotation 94.
  • the floor cleaning device 10 includes a cassette 98 (for example Figures 2 to 4).
  • the cassette 98 serves to hold the cleaning roller unit 28 in the receiving shaft 70 during operation of the floor cleaning device 10, and to hold the cleaning roller unit 28 when inserting it onto the traveling body 14 and when removing it from the traveling body 14.
  • a cassette is understood to be an inherently rigid or stable structure, which is, so to speak, a receptacle for the cleaning roller unit 28 (but does not have to be closed) and can be handled as an independent unit.
  • the cassette 98 includes a lid 100.
  • the lid 100 serves to close the opening 88 of the receiving shaft 70 when the cassette 98 is inserted.
  • the cover 100 lies opposite the side wall 86.
  • the geometric shape of the cover 100 is adapted to the outer contour 64 of the driving body 14 and is in particular designed to be correspondingly curved in order to follow the circular contour.
  • a locking device is provided to fix the cover 100 to the moving body 14 and thus to lock the cassette 98 with the moving body 14.
  • This includes, for example, an unlocking button, which is arranged on the driving body 14 and acts on a pawl.
  • a counter-element for the pawl is arranged on the cover 100, the counter-element having an opening into which the pawl can be immersed.
  • a second pivot bearing 108 is located on the lid for the rotation of the cleaning roller unit 28 about the axis of rotation 94 (see, for example, FIG. 4).
  • the second pivot bearing 108 is designed as a ball bearing.
  • the cleaning roller unit 28 can be fixed in a rotationally fixed manner on the second pivot bearing 108.
  • the cleaning roller unit 28 is opposite on the first pivot bearing 96 and the second pivot bearing 108 rotatably mounted.
  • the cleaning roller unit 28 is correspondingly supported on its opposite end faces.
  • the cleaning roller unit 28 is held on both sides between the first pivot bearing 96 and the second pivot bearing 108.
  • the cleaning roller unit 28 is held, so to speak, hanging in the receiving shaft 70 between the first pivot bearing 96 and the second pivot bearing 108 and is supported on its respective end areas.
  • cleaning roller units 28 can also be used with a greater length (in a longitudinal direction parallel to the axis of rotation 94) or larger torsional moments can also be absorbed.
  • the cleaning roller 28 is prevented from wobbling.
  • the cassette 98 includes a support structure 110, which sits on the lid 100 and ensures the appropriate stability or rigidity of the cassette 98.
  • the second pivot bearing 108 is positioned on the cover 100 at a distance from this support structure 110.
  • the support structure 110 is or includes a wall 112 which is fixed to the cover 100.
  • the wall 112 has a cylindrical shell shape. It extends in a longitudinal direction. When the cassette 98 is held on the moving body 14 with the cleaning roller 28 held thereon, this longitudinal direction of extension of the cassette 98 is parallel to the axis of rotation 94. It is also parallel to the longitudinal direction of extension 72 of the receiving shaft 70.
  • the wall 112 is designed such that, when the cassette 98 is held on the carriage 14, it covers the wall 76 of the carriage and at least partially the cover wall 74 on the carriage 14.
  • the wall 112 forms a cover and thus a protective wall from the cleaning roller 28. towards the moving body 14. This largely prevents soiling of the moving body 14 during operation of the floor cleaning device 10; the wall 112 keeps dirt away from the corresponding walls 74, 76 of the moving body 14.
  • a guide device is arranged on the receiving shaft 70.
  • the cassette 94 has a counter-guide device adapted to it.
  • the cassette 98 can be inserted or removed from the receiving shaft 70 in an insertion/removal direction 124 (direction and opposite direction).
  • This insertion/removal direction 124 is parallel to the longitudinal extension direction of the cassette 98 and the longitudinal extension direction 72 of the receiving shaft 70 when aligned appropriately. In particular, this insertion/removal direction 124 is parallel to the rotation axis 94.
  • the insertion/removal direction 124 is transverse and in particular perpendicular to the main direction of travel 24.
  • a holding device 126 for the cleaning roller unit 28 is arranged on the cassette 98.
  • the holding device 126 is designed so that it prepositions the cleaning roller unit 28 when inserting the cassette 98 on the moving body 14 and then ensures an automatic coupling of the drive shaft 92 to the cleaning roller unit 28 when the cassette 98 is inserted in the corresponding insertion direction 124 and the cover 100 is locked to the driving body 14. It also ensures that... When the cassette is removed, the cleaning roller unit 28 is automatically removed, which means that the operator intervention is the removal of the cassette 98 and in particular the operator does not have to touch the cleaning roller unit 28.
  • the holding device 126 ensures that the cleaning roller unit 28 is appropriately positioned on the cassette 98 during cleaning operation and is in particular held on the first pivot bearing 96 (the drive shaft 92) and the second pivot bearing 108.
  • the holding device 126 has a first holding element 128 and a second holding element 130.
  • the first holding element 128 is formed via the second pivot bearing 108.
  • the second holding element 130 is arranged on the wall 112 at a distance from the first holding element 128 in the longitudinal direction.
  • the second holding element 130 has, for example, a ring element 132 with an opening 134.
  • An axis of the opening 134 is aligned parallel to the longitudinal direction of the cassette 98.
  • the cleaning roller 28 comprises a carrier 136 on which a cleaning medium 138 is arranged (compare, for example, FIG. 3).
  • the carrier 136 is a ring cylinder with openings at least at the front ends. It is also possible that there is a continuous opening.
  • the cleaning medium 138 is a trimming which is fixed to the carrier 136.
  • the cleaning medium 138 is in particular a textile trimming, such as a microfiber trimming, which sits on the carrier 136.
  • the cleaning medium 138 may include both bristles and textile trimming areas.
  • the drive shaft 92 projects into the receiving shaft 70.
  • a distribution device 168 for cleaning liquid from the cleaning liquid tank 40 is arranged on the cassette 98 and on the wall 112. This is described in more detail below.
  • a connection 176 is arranged on the cassette 98 and is in fluid communication with the distributor device 168.
  • the connection 176 is a connection of the cassette 98 for a fluid connection to the cleaning liquid tank 40.
  • connection 176 is designed in cooperation with the driving body 14 and the dirty fluid tank 38 so that a fluid connection between the cleaning fluid tank and the distribution device 168 is automatically established when the cassette 98 is properly attached to the driving body 14 (with locking on the Lid 100) is fixed.
  • the cleaning liquid tank 40 is assigned a valve device (which is preferably positioned outside the cassette 98), which releases cleaning liquid from the cleaning liquid tank 40 only during the cleaning operation of the floor cleaning device 10.
  • the cassette 98 does not contain any electronic components and the like or any components that require a power supply.
  • a stripping element 178 is held on the cassette 98.
  • the stripping element 178 is in particular removable from the cassette 98.
  • exactly one cleaning roller unit 28 with a cleaning roller is provided.
  • exactly one stripping element 178 is assigned to this one cleaning roller unit 28.
  • the stripping element 178 serves to wipe off (detach) dirty fluid from the cleaning roller unit 28 (from the trim of the cleaning roller unit 28) and to guide dirty fluid via a corresponding guide device to the dirty fluid tank 38.
  • An exemplary embodiment of a stripping element 178 is formed in one piece. It includes a body. A channel device is integrated into the body. In one embodiment, the channel device comprises a channel with an inlet port and an outlet port. When the stripping element 178 is properly positioned on the cassette 98 and the cassette 98 is held on the traveling body 14, the input mouth faces the cleaning roller unit 28, and the output mouth faces an inlet mouth of the dirty fluid tank 38.
  • the stripping element 178 is movably held on the cassette 98.
  • the stripping element 178 is held on the cassette 98 about a pivot axis 192 (see FIG. 4).
  • the pivot axis 192 is parallel to the longitudinal direction of the cassette 98 or parallel to the rotation axis 94.
  • the pivot axis 192 is transverse and in particular perpendicular to the main direction of travel 24.
  • a sweeping device 202 is also arranged on the floor head 12 and serves to pick up coarse dirt (coarse dirt particles).
  • the sweeping device 202 includes (at least) one sweeping element 206, which is designed as a sweeping bar.
  • the sweeping element 206 is arranged on the wall 112 or is formed on the wall 112.
  • the floor cleaning device 10 includes a moistening device 208.
  • the moistening device 208 serves to supply cleaning liquid from the cleaning liquid tank 40 to the cleaning roller unit 28 and to moisten it.
  • the humidification device 208 includes the distribution device 168 with the connection 176.
  • the distribution device 168 of the humidification device 208 comprises a basin device 210.
  • the basin device 210 in turn has a first basin 212 and a second basin 214 (see, for example, FIG. 7).
  • the first basin 212 and the second basin 214 are spaced apart from one another. They lie aligned with one another, next to one another, relative to a longitudinal axis of the cassette 98. This longitudinal axis of the cassette 98 lies parallel to the axis of rotation 94 of the cleaning roller unit 28.
  • the cymbal device 210 with the first cymbal 212 and the second cymbal 214 is fixed to the cassette 98 (the holding device 126). In one exemplary embodiment, it sits on the wall 112.
  • the first basin 212 and the second basin 214 each have a holding volume 216 for cleaning liquid.
  • a respective basin 212, 214 of the basin device 210 comprises a basin floor 218 and a basin wall 220.
  • the pool floor 218 and the pool wall 220 are arranged or formed on the wall 112.
  • the pelvic floor 218 is the deepest part of the respective pelvis 212, 214. Also in relation to the height direction 52, the receiving volume 216 is arranged above the pelvic floor 218.
  • the height direction 52 is at least approximately parallel to the direction of gravity.
  • the pelvic floor 218 is then at the lowest gravitational potential in relation to the pelvic device 210.
  • the basin device 210 is provided with an opening device 222.
  • cleaning liquid can flow from the respective basin 212, 214 to the cleaning roller unit 28 via the opening device 222 in order to moisten it and in particular the cleaning medium (stock) 138.
  • the opening device 222 is arranged above the pelvic floor 218 in relation to the height direction 52.
  • the receiving volume 216 of the respective pelvis 212, 214 is then defined in terms of its height by the distance between the pelvic floor 218 and the opening device 222.
  • An upper side of the receiving volume 216 corresponds (maximally) to an imaginary line perpendicular to the height direction 52, which borders on a lower side 224 of the opening device 222 with respect to the height direction 52.
  • the basin device 210 For introducing cleaning liquid from the cleaning liquid tank 40 into the basin device 210 by means of the humidification device 208, (at least) one inlet 230 is provided.
  • the basin device 210 is assigned exactly one inlet 230 or each basin 212, 214 is assigned at most one inlet 230.
  • an inlet 230 is provided, via which both the first basin 212 and the second basin 214 are supplied with cleaning liquid from the cleaning liquid tank 40.
  • the inlet 230 is or includes the connection 176.
  • cleaning fluid it is possible for cleaning fluid to be coupled directly into a corresponding basin and in particular into the area of a receiving volume 216 of a basin via the inlet 230. This is indicated schematically in Figure 11.
  • a channel device 232 is provided (compare in particular Figures 7, 8), via which cleaning liquid is distributed from the cleaning liquid tank 40 to the basins 212, 214 and coupled into them.
  • the channel device 232 is connected to the connection 176 and thus to the inlet 230.
  • FIG. 7 to 10 a partial representation is shown with a removed cover 234 for better illustration.
  • the cover 234 covers the channel device 232 and the basin device 210 on a side facing away from the cleaning roller unit 28.
  • the channel device 232 comprises a collecting channel 236 (FIGS. 7, 8).
  • the collecting channel is connected to the inlet 230 and runs with a partial area along the second basin 214.
  • the collecting channel 236 is fluidly separated from the second basin 214 via a corresponding wall. This wall is formed in particular by the pool wall 220. It is fluidly separated from the traveling body 14 by a further wall 238, which in particular runs at least approximately to the corresponding basin wall 220 (when the cassette 98 is seated on the traveling body 14).
  • the channel device 232 with the collecting channel 236 is arranged on the wall 112.
  • the wall 238 (and the pool wall 220) sit on the wall 112.
  • the collecting channel 238 leads into a distributor 240, which is in particular a distribution channel.
  • the distributor 240 sits at an intermediate area between the first basin 212 and the second basin 214.
  • the distributor 240 is separated from the first basin 212 by a first wall 242.
  • the first wall 242 lies transversely and in particular perpendicular to the wall 238.
  • the first wall 242 is oriented transversely and in particular perpendicular to a longitudinal axis of the cassette 98 or transversely and in particular perpendicular to the axis of rotation 94.
  • a second wall 244 is arranged opposite the first wall, which adjoins the wall 238 and is in particular aligned parallel to the first wall 242.
  • the corresponding channel of the distributor 240 lies between the first wall 242 and the second wall 244.
  • first feed channel 246 Starting from the distributor 240 is a first feed channel 246.
  • This first feed channel 246 is oriented parallel to the first basin 212 and runs along the first basin 212.
  • the first feed channel 246 is parallel to the longitudinal axis of the cassette 98 or parallel to the axis of rotation 94.
  • Cleaning fluid can be injected into the first basin 212 essentially over the entire length of the first basin 212 via the first feed channel 246 and thus brought into the receiving volume 216.
  • a second feed channel 248 extends from the distributor 240 in the opposite direction to the first feed channel 246.
  • the second feed channel 248 runs along the second basin 214.
  • the second feed channel 248 and the first feed channel 246 are aligned.
  • cleaning liquid from the cleaning liquid tank 40 which is coupled into the channel device 232 via the humidification device 208 and the inlet 230, can be coupled along the second basin 214 into the second basin 214.
  • Cleaning liquid can be supplied to both the first basin 212 and the second basin 214 via the single inlet 230.
  • the inlet 230 (the connection 176) is arranged in the area of a front end 250 of the cassette or then also a corresponding front end of the cleaning roller unit 28 when it is held on the cassette 98. This allows the line paths between the cleaning liquid tank 40 and the inlet 230 to be kept to a minimum. The provision of a single inlet 230 results in little design effort in order to provide cleaning liquid to the cleaning roller unit 28 via the moistening device 208.
  • a type of labyrinth guide for cleaning liquid from the inlet 230 into the basins 212, 214 is formed via the channel device 232.
  • the first feed channel 246 and the second feed channel 248 are arranged opposite the opening device 222 with respect to the basin device 210.
  • cleaning liquid is coupled into the basin device 210 in such a way that cleaning liquid is provided to the opening device 222 by overflow of the receiving volume 216. Cleaning liquid is first coupled into the basin device 210 via the channel device 232 and then provided to the cleaning roller unit 28 through the opening device 222 by overflow.
  • FIG 8 the flow course of cleaning liquid coupled in via the inlet 230 is indicated.
  • Cleaning liquid flows into the channel device 232 via the inlet 230.
  • Cleaning liquid flows into the distributor 240 via the collecting channel 236. From there, cleaning liquid is divided into the first supply channel 246 and the second supply channel 248. Cleaning liquid then flows from these supply channels 246, 248 into the respective basins 212, 214.
  • the flow into the basins 212, 214 takes place via a long side of the respective basin 212, 214.
  • the opening device prefferably, it is possible for the opening device to have one or more slots.
  • the opening device 222 comprises a plurality of discrete and spaced mouth openings 252.
  • the orifices 252 are in particular aligned with one another in such a way that they lie on a line. This line is parallel to the rotation axis 94 of the cleaning roller unit 28.
  • the mouth openings 252 are at the same height in relation to the height direction 52 and therefore all have the same height distance (the height direction 52) to the pelvic floor 218.
  • the mouths 252 are formed on the basin wall 220 as continuous openings, namely on one side of the basin wall 220, which faces away from the side on which the respective feed channel 246 or 248 is located.
  • the mouth openings 252 are evenly spaced from one another.
  • a line density of mouth openings 252 is at least 0.4 cm 1 and in particular at least 0.5 cm.
  • the line density is the number of mouth openings 252 per unit length.
  • a mouth opening 252 includes a channel 254 (see Figure 10) between an entrance 256 and an exit 258.
  • the entrance 256 is on an interior of the respective basin 212, 214.
  • the exit 258 is directly opposite the cleaning roller unit 28.
  • the channel 254 is formed in particular in the wall 112.
  • the mouth openings 252 are in particular aligned such that a longitudinal axis 260 of a corresponding channel 254 (see FIG. 10) is oriented transversely to the height direction 52 and in particular is oriented at an acute angle or parallel to the height direction 52.
  • the acute angle of the orientation of the longitudinal axis 260 to the height direction 52 is in the range between 20° and 45° and, for example, approximately 25°.
  • the longitudinal axis 260 is parallel to the height direction 52.
  • the orientation of the channels 254 (the design of the mouth openings 252) is in particular such that when the receiving volume 216 overflows, cleaning liquid from the basin device 210 flows to the cleaning roller unit 28 under gravity.
  • the channels 254 formed by the mouth openings 252 are designed to be “short” with respect to their longitudinal axis 260, so that in particular a direct supply of cleaning liquid from the basin device 210 to the cleaning roller unit 28 is possible.
  • a length of such a channel 254 along the longitudinal axis 260 is at most or equal to 8 mm and in particular at most or equal to 2 mm.
  • the mouth openings 252 have a rounded shape and are, for example, circular or oval in cross section. At the intersection area with the pool wall 220 there is a rounding 262 of the wall, so that in particular an edge-free transition from the corresponding pool 212, 214 into the channel 254 is achieved.
  • the lower side 224 of the opening device 222 which was mentioned above and which defines the maximum liquid level 226, is reached via the rounding 262 at the entrance 256 (see Figure 10).
  • a longitudinal axis 264 can be assigned to the pelvic device 210 and the respective pelvis 212, 214, as mentioned above.
  • the longitudinal axis 264 is the main extension direction of the respective basins 212, 214, in which they have the greatest length. This longitudinal axis 264 is parallel to the axis of rotation 94.
  • the feed channels 246, 248 are aligned parallel to this longitudinal axis 264.
  • the channels 254 with their longitudinal axes 260 are, as mentioned above, aligned transversely and in particular perpendicular to this longitudinal axis 264.
  • a mouth normal of a mouth opening 252 towards the cleaning roller unit 94 is predetermined by the longitudinal axis 260 of the channels 254 and is then correspondingly aligned transversely and in particular perpendicular to the longitudinal axis 264 or the rotation axis 94.
  • the basin device 210 is arranged and designed so that it extends over at least 70 percent and preferably at least 80 percent and in particular at least 90 percent of the cleaning roller unit 28 in the longitudinal direction (parallel to the axis of rotation 94) in order to cover a large area of the Cleaning roller unit 28 to obtain appropriate moistening.
  • the basic functionality of the humidification device 208 with the basin device 210 is explained in Figures 11, 12.
  • Cleaning liquid is introduced into the basin device 210 via an indicated inlet 230.
  • the receiving volume 216 fills until a corresponding liquid level reaches the opening device 222. If cleaning liquid is continued to be filled in, then cleaning liquid emerges from the opening device 222 and the cleaning roller unit 28 is acted upon with it.
  • a liquid buffer is set by the basin device 210.
  • the receiving volume must first be filled until cleaning liquid can emerge from the opening device 222.
  • the basin device 210 then ensures that the supply of cleaning liquid to the cleaning roller unit 28 is evened out.
  • the receiving volume 216 accommodates a buffer liquid, which ensures this equalization.
  • the inlet 230 ensures that cleaning liquid is introduced into the basin device 210 and in particular into the receiving volume 216. Cleaning liquid is then provided to the cleaning roller unit 28 through the opening device 222 through overflow. This makes it possible to arrange the inlet 230 at any location, and in principle a single inlet 230 is sufficient, although uniform moistening of the cleaning roller unit 28 is still achieved.
  • FIG. 13 a variant not covered by the invention is shown in FIG. 13, in which cleaning liquid is supplied via an inlet 266 openings 268 without a receiving volume 216 being present. Openings 268 that are closer to the inlet 266 provide more cleaning liquid than openings that are further away from the inlet 266. For the cleaning roller unit, this means an uneven application of cleaning liquid with more cleaning liquid supplied near the inlet 266 than further away from it.
  • the basin device 210 with receiving volume 216 and opening device 222 which lies above the receiving volume 216 in relation to the height direction 52, achieves a uniformity of the cleaning liquid distribution on the cleaning roller unit 28. There is, so to speak, a decoupling from the inlet 230, since a buffer volume is provided by the receiving volume 216. The uniform distribution is then achieved by overflow from the receiving volume 216.
  • a defined installation level 26 is provided, which holds the floor head 12 in a defined position relative to the floor 16 to be cleaned.
  • the installation level 26 is defined by the cleaning roller unit 28 and by the support roller 20 and the wheels 18a, 18b as further ground contact elements.
  • the liquid level 226 depends on the inclination of the installation plane 26 to the direction of gravity. This is usually the installation level 26 perpendicular to the direction of gravity. Even with floor slopes with the installation plane 26 at a small angle to a plane that is horizontal with respect to the direction of gravity, a uniform liquid supply can be achieved (as long as cleaning liquid can still be absorbed in the receiving volume 216).
  • the solution according to the invention makes it possible to achieve uniform moistening of the cleaning roller unit 28 over its entire length parallel to the axis of rotation 94 with little design effort. Furthermore, the liquid supply via the humidification device 208 can in principle also be designed with little design effort. In principle, a single inlet 230 is sufficient for coupling cleaning liquid from the cleaning liquid tank 40 into the basin device 230.
  • the floor cleaning device 10 works as follows:
  • the drive motor 90 drives a rotation of the cleaning roller unit 28 in a rotation direction 270.
  • the cleaning roller unit 28 (the cleaning medium 138) is moistened with cleaning liquid via the moistening device 208 as described above.
  • Cleaning liquid is coupled into the basin device 210 via the inlet 230 and the channel device 232. Overflowing cleaning liquid from the receiving volume 216 flows to the cleaning roller unit 28 via the opening device 222 and moistens it.
  • the cleaning roller unit acts mechanically on the floor 16 to be cleaned. Dirt is removed via the cleaning liquid.
  • Dirty fluid is removed from the cleaning roller unit 28 via the stripping element 178 and fed to the dirty fluid tank 38. If there are coarse dirt particles 204 on the floor to be cleaned, then these can be picked up via the sweeping device 202.
  • the floor cleaning device 10 has been described as a self-steering and self-propelled floor cleaning device.
  • the corresponding humidification device 208 can also be used if the floor cleaning device is designed for a standing operator.
  • a floor cleaning device 286 is shown schematically in FIG.
  • a floor head 288 is provided, to which a holding rod device 290 is pivotally articulated.
  • an operator can guide the floor head 288 in a standing position over the floor 16 to be cleaned, with the main direction of travel 24 in particular being provided as the main cleaning direction.
  • a cassette 292 can be provided, on which the corresponding moistening device for the cleaning roller unit 28 is then located.
  • the solution according to the invention for the humidification device 208 can also be used if, for example, dirty fluid is sucked off from the cleaning roller unit 28, for example via a suction fan device which is seated on a holding rod device 290.
  • a cleaning roller unit 28 can basically comprise a single, uniform cleaning roller or a plurality of partial rollers.
  • a plurality of cleaning roller units or a plurality of partial rollers can be provided.
  • the humidification device 208 was described above with a basin device 210 which is positioned on the cassette 98.
  • a basin device 210 with the features according to the invention can also be used without being arranged on a cassette. For example, it can be arranged directly on the corresponding floor head and cannot be removed.
  • Reference symbol list

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne un dispositif de nettoyage des sols, comprenant : une tête de sol (12), la tête de sol (12) définissant un plan de positionnement (26) pour un sol (16) à nettoyer ; au moins une unité de rouleau de nettoyage (28), qui est disposée sur la tête de sol (12) et peut tourner autour d'un axe de rotation (94) ; un moteur d'entraînement (90) pour assurer un mouvement de rotation de l'au moins une unité de rouleau de nettoyage (28) ; au moins un réservoir de fluide de nettoyage (40) ; et un dispositif de mouillage (208) pour fournir un fluide de nettoyage à partir de l'au moins un réservoir de fluide de nettoyage (40) à l'au moins une unité de rouleau de nettoyage (28) ; dans lequel : le dispositif de mouillage (208) comprend au moins un réservoir (212) qui est affecté à l'au moins une unité de rouleau de nettoyage (28), repose sur la tête de sol (12 ; 288) et comporte un volume de réception (216) pour le fluide de nettoyage ; le dispositif de mouillage (208) présente au moins une entrée (230) par l'intermédiaire de laquelle un fluide de nettoyage peut être délivré au volume de réception (216) de l'au moins un réservoir (212) ; et un dispositif à ouvertures (222) est disposé sur l'au moins un réservoir (212), par l'intermédiaire duquel dispositif à ouvertures un fluide de nettoyage provenant de l'au moins un réservoir (212) est délivré à l'au moins une unité de rouleau de nettoyage (28) ; le dispositif à ouvertures (222) est disposé au-dessus du volume de réception (216) par rapport à une direction verticale (52) perpendiculaire au plan de positionnement (26).
PCT/EP2023/074419 2022-09-20 2023-09-06 Dispositif de nettoyage des sols comprenant un réservoir et procédé d'utilisation d'un dispositif de nettoyage des sols WO2024061626A1 (fr)

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DE102022124120.3A DE102022124120A1 (de) 2022-09-20 2022-09-20 Bodenreinigungsgerät mit Becken und Verfahren zum Betreiben eines Bodenreinigungsgeräts
DE102022124120.3 2022-09-20

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