EP3474717B1 - Feuchtreinigungsgerät mit einer rotierbaren reinigungswalze - Google Patents

Feuchtreinigungsgerät mit einer rotierbaren reinigungswalze Download PDF

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Publication number
EP3474717B1
EP3474717B1 EP17730482.1A EP17730482A EP3474717B1 EP 3474717 B1 EP3474717 B1 EP 3474717B1 EP 17730482 A EP17730482 A EP 17730482A EP 3474717 B1 EP3474717 B1 EP 3474717B1
Authority
EP
European Patent Office
Prior art keywords
cleaning roller
cleaning
roller
wet
liquid
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP17730482.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3474717A1 (de
Inventor
Bernd Lindenbeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding GmbH
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 Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP3474717A1 publication Critical patent/EP3474717A1/de
Application granted granted Critical
Publication of EP3474717B1 publication Critical patent/EP3474717B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L11/04—Floor surfacing or polishing machines hand-driven
    • A47L11/08—Floor surfacing or polishing machines hand-driven with rotating tools
    • A47L11/085—Floor surfacing or polishing machines hand-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
    • A47L11/10—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
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/18—Floor surfacing or polishing machines motor-driven with rotating tools the tools being roll brushes
    • A47L11/19—Parts or details of the brushing tools
    • 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
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A47L11/282—Floor-scrubbing machines, motor-driven having rotary tools
    • 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
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/292—Floor-scrubbing machines characterised by means for taking-up dirty liquid having rotary tools
    • 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
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • 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
    • 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
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • 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
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/20—Mops
    • A47L13/22—Mops with liquid-feeding devices

Definitions

  • the invention relates to a wet cleaning device, in particular a wet wiping device, with a cleaning roller rotatable about a roller axis and a moistening device for applying a liquid to the cleaning roller.
  • the invention relates to a method for operating a wet cleaning device, in particular a wet wiping device.
  • the DE 102 29 611 B3 discloses a wet cleaning device with a wiper body that can be driven to rotate about an axis of rotation, in which a cleaning liquid is removed from a storage tank and sprayed onto the surface of the wiper body by means of spray nozzles arranged in the direction of the axis of rotation of the wiper body.
  • the wiping body thus moistened is guided over a surface to be cleaned during a wiping operation, the wiping body taking up dirt from the surface to be cleaned.
  • the wiping body is increasingly covered with dirt, so that regeneration of the wiping body is necessary.
  • the wiper body is lifted off the surface to be cleaned, surrounded with a housing and sprayed with unused cleaning liquid.
  • the wiper body rotates so that cleaning fluid and dirt are expelled from the wiper body and hit the inside of the housing and are transferred to a receiving tank.
  • the US 4,875,246 A further discloses a wet cleaning device with a wiper body which can be driven to rotate about an axis of rotation, a wringing roller and a moistening device.
  • the wringing roller can be displaced from an active to an inactive position relative to the rotatably drivable wiper body.
  • the wet cleaning device include a wiping device that can be moved to the cleaning roller, in particular a wiping lip, to support the removal of liquid and / or dirt from the cleaning roller and / or Support the application of liquid to the cleaning roller, wherein the moistening device and the stripping device are parts of an overall functional unit that can be displaced relative to the cleaning roller, so that the functional unit as a whole can be shifted from a first operating position to a second operating position and vice versa.
  • the stripping device according to the invention can therefore basically perform two tasks.
  • the scraper device moved towards the cleaning roller can improve the moistening of the cleaning roller.
  • the cleaning roller is usually provided with a textile cleaning covering, between whose fibers moisture can be absorbed and stored. If the stripping device is moved so close to the cleaning roller that it only touches part of the fiber length, the stripping device can be liquid (continue on page 3 of the originally submitted documents) Press speed between the fibers of the cleaning roller without this can be detached from the cleaning surface again when the cleaning roller rotates further by sweeping over the fibers with the stripping device.
  • the scraper device can be used to remove the liquid and / or to remove dirt from the cleaning roller.
  • the stripping device is moved towards the cleaning roller in such a way that it presses against the cleaning roller with a pressing force and preferably mechanically wipes the liquid off the cleaning roller.
  • both the liquid is pressed or wiped out of the material of the cleaning roller and the dirt that is taken up, so that the success of regeneration is improved compared to the prior art.
  • Due to the rotation of the cleaning roller the dirt is also thrown off the cleaning roller or the scraper device and can be fed to a collecting container.
  • the cleaning effect is thus achieved, on the one hand, by spinning off the liquid / dirt from the rotating cleaning roller and, on the other hand, by wiping off, in which case liquid or dirt is also pressed out of the cleaning roller.
  • the effect is used that the fibers or bristles of the cleaning covering, which are bent during the rotation of the cleaning element by the stripping device, are straightened up again after passing through the stripping device by the internal stress and the acting centrifugal force. This also supports the spinning off of the liquid or dirt.
  • the scraper device is advantageously formed over the entire axial length of the cleaning roller, so that the entire peripheral surface of the cleaning roller can be regenerated or moistened during a complete rotation of the cleaning roller.
  • the wet cleaning device can be a wet cleaning device hand-guided by a user or also an automatically movable wet cleaning device, for example a wiping robot.
  • wet cleaning devices are to be understood which have a suction function and a wiping function, for example combined suction-wiping devices.
  • the moistening device and the stripping device are parts of a common functional unit.
  • This functional unit thus takes on the one hand the task of moistening the cleaning roller and on the other hand the task of wiping off liquid and dirt from the cleaning roller.
  • the scraper device also fulfills the aforementioned function of incorporating the liquid into a cleaning surface of the cleaning roller.
  • the design as a common functional unit also has the advantage that the functional unit as a whole can be installed in the wet cleaning device, so that fewer assembly steps and thus less assembly time are required during manufacture. In addition, a smaller space for the functional unit within the wet cleaning device is necessary, since a smaller number of fasteners and the like is required.
  • a common housing can be made smaller than two individual housings arranged next to one another, each for the moistening device and the stripping device.
  • both variants are conceivable in which the moistening device and the stripping device are formed in one piece, for example in the sense of a common one Plastic injection molded part, as well as variants in which the moistening device and the stripping device are attached to one another to form a common functional unit, so that they can be installed together in the wet cleaning device.
  • the common functional unit - and thus also the moistening device and the stripping device - is particularly advantageously formed along the entire longitudinal extent of the cleaning roller, so that moistening and wiping is possible evenly over the length of the cleaning roller.
  • the functional unit is displaceably arranged on the housing of the wet cleaning device, so that it can be displaced relative to the cleaning roller overall with a single displacement movement.
  • the functional unit can thus be shifted particularly easily and quickly from a position for a wiping operation into a position for a regeneration operation.
  • the stripping device and / or the functional unit are mounted on a housing of the wet-cleaning device so as to be pivotable about a pivot axis arranged parallel to the cleaning roller, the stripping device and / or the functional unit being acted upon in particular by a spring force directed in the direction of the cleaning roller.
  • the scraper device or the functional unit can be swiveled from a wiping position into a regeneration position, ie either swiveled away from the cleaning roller or swiveled towards the cleaning roller, the scraper device coming into mechanical contact with the cleaning roller in the latter case.
  • an actuating device acting on the scraper device or functional unit advantageously has a spring which presses the scraper device against the cleaning roller.
  • the spring loading can compensate for tolerances in the event of fluctuations in diameter the cleaning roller, uneven floors or the like) can be reached.
  • the actuating device can, for example, have a torsion spring drive with a helical spring.
  • the stripping device and / or the functional unit is assigned a displacement drive which is designed to relocate the stripping device and / or the functional unit relative to the cleaning roller.
  • the wet cleaning device has a displacement drive, for example a linear drive or a swivel drive, which can shift the stripping device and / or the functional unit relative to the cleaning roller.
  • the displacement drive can preferably move the stripping device or the functional unit in several stages. A first stage can be a completely detached position of the stripping device from the cleaning roller. A second position can be set up in such a way that the stripping device only touches an outermost free end region of the fibers of a cleaning covering of the cleaning roller. Finally, a third position can be characterized in that the stripping device presses against the cleaning roller with the greatest possible force. The latter in particular in connection with the spring force of the previously proposed spring.
  • the wet cleaning device has a displaceable cover element for completing a roller cover surrounding the cleaning roller and in particular also the moistening device and the wiping device, which cover corresponds to the shape in the circumferential direction of the cleaning roller, the cover element being designed to optionally release and / or close an opening area of the roller cover .
  • the roller cover is along the entire length Length of the cleaning roller and preferably completely surrounds the cleaning roller in the circumferential direction except for the opening area.
  • the cover element serves as a closure element in order to close the opening area for a regeneration operation of the wet cleaning device, so that liquid removed or thrown off from the cleaning roller cannot get outside and can come into contact with a user of the wet cleaning device.
  • the situational closing of the opening area by means of the cover element also lends itself in the sense of drip protection during transport or a parking position of the cleaning device.
  • the moistening device and the scraper device are advantageously arranged within the roller cover.
  • the roller cover is thus an outer encapsulation both for the cleaning roller and for the entire liquid-carrying elements, so that the environment is optimally shielded from liquid which splashes or drips off.
  • the cleaning roller is advantageously arranged such that it can be displaced relative to the roller cover on the wet cleaning device, so that the cleaning roller protrudes from the roller cover during a wiping operation of the wet cleaning device and can come into contact with a surface to be cleaned, and is shifted into the roller cover during a regeneration operation and that Opening area of the roller cover is closed by means of the cover element.
  • the roller cover can advantageously be completely separated from the housing of the wet cleaning device, as a result of which the wiping device and / or the entire functional unit are also separated from the wet cleaning device.
  • the stripping device or Functional unit can of course also be separated from the roller cover.
  • the cover element have an operative connection with a displacement drive of the scraper device and / or the functional unit, such that the scraper device and / or the functional unit can be displaced onto the cleaning roller when the cover element is displaced in the direction of a position closing the roller cover.
  • the displacements of the cover element and the stripping device / functional unit required for regeneration operation of the wet cleaning device are carried out before performing the regeneration operation, in particular at the same time, namely for on the one hand closing the roller cover by means of the cover element and on the other hand moving the stripping device in the direction of the cleaning roller .
  • the user of the wet cleaning device therefore does not have to operate several actuating devices or switches before carrying out a regeneration operation. Rather, closing the roller cover causes the stripping device / functional unit to be displaced, or vice versa.
  • the cover element and the stripping device or the functional unit are advantageously connected to one another via a gear, for example via coupled gear wheels.
  • the stripping device opens into a disposal channel for draining the liquid into a liquid container.
  • the stripping device is assigned, for example, a liquid collection area for the liquid removed from the cleaning roller by means of the stripping device, which directly adjoins the disposal channel for discharging the liquid into the liquid container.
  • the liquid stripped or flung off by the cleaning roller and / or stripped or thrown off dirt can thus directly enter the disposal channel without being flung around within the roller cover or the like.
  • the humidification device in particular the common functional unit, have a distribution device with a plurality of outlet openings and / or a liquid supply line for supplying the humidification device with liquid.
  • the humidifier is used to provide and distribute liquid.
  • the distribution of the liquid over the length of the cleaning roller is advantageously carried out through a plurality of outlet openings which enable the cleaning roller to be moistened almost homogeneously along its longitudinal extent.
  • the distribution device can on the one hand have mere outlet openings or also nozzles for applying liquid to the surface of the cleaning roller.
  • the liquid supplied to the moistening device via the liquid supply line is advantageously under pressure, so that the liquid can be sprayed onto the cleaning roller in small quantities and the cleaning roller material is not completely wetted.
  • the liquid supply line can be connected to a liquid container of the wet cleaning device.
  • the distribution device have an air guide device pointing in the direction of the cleaning roller for guiding air in the direction of a disposal channel for discharging the liquid into a collecting container.
  • the air accelerated by the rotation of the cleaning roller inside the roller cover is directed through the air guide device in the direction of the disposal channel, so that removal of the liquid in the direction of the collecting container is supported.
  • the air guiding device can advantageously have a plurality of air guiding ribs on the outside of the distribution device have which air guide ribs are aligned in the circumferential direction of the cleaning roller.
  • the invention also proposes a method for operating a wet cleaning device, in particular a previously explained wet cleaning device, wherein liquid and / or dirt is removed from a cleaning roller of the wet cleaning device during regeneration operation, with a wiping device which can be displaced relative to the cleaning roller for regeneration of the cleaning roller is placed on the cleaning roller, the cleaning roller is accelerated compared to a normal speed during a wiping operation of the wet cleaning device and liquid and / or dirt thrown off the cleaning roller and / or liquid and / or dirt released by the wiping device is collected and in one Collection container is passed.
  • a method for operating a wet cleaning device liquid being applied to a rotatable cleaning roller by means of a moistening device, a wiping device which can be displaced relative to the cleaning roller being displaced onto the cleaning roller for moistening the cleaning roller, the wiping device thus being removed from the cleaning roller is spaced apart so that the stripping device touches only an end portion of the fibers of a cleaning covering of the cleaning roller, the stripping device conducting liquid between the fibers when the cleaning roller rotates.
  • the regeneration operation of the wet cleaning device includes accelerating the cleaning roller, placing the scraper device on the cleaning roller, wiping off dirt and / or liquid by means of the scraper device and a radial throwing off of liquid and / or dirt from the cleaning roller, collecting the liquid and the dirt as well as discharging into a disposal channel for discharging the liquid or the dirt into a collecting container.
  • the liquid supply or liquid distribution functions in such a way that the stripping device, in particular the functional unit, is brought to the cleaning roller in such a way that the stripping device just touches the fibers of a cleaning coating on the cleaning roller.
  • the speed of the cleaning roller is slowed down compared to the usual wiping operation, while the liquid passes through the functional unit, in particular a distribution device, to a plurality of outlet openings and from there to the surface of the cleaning roller.
  • the stripping device presses the liquid between the fibers of the cleaning roller, the cleaning roller advantageously being moistened piece by piece in the circumferential direction during one or more complete revolutions.
  • the stripping device or the functional unit is spaced further from the cleaning roller, so that the cleaning roller runs freely. This can be followed, for example, by wiping the wet cleaning device.
  • wet cleaning devices are to be understood as all those devices which can exclusively or, among other things, perform wet cleaning. These include, on the one hand, the hand-held and automatically movable wet cleaning devices, in particular also cleaning robots, and, on the other hand, combined dry and wet cleaning devices, which are both wet cleaning and dry cleaning can perform.
  • wet cleaning devices for cleaning floor surfaces are also meant within the meaning of the invention. These include, for example, devices for cleaning windows and the like.
  • Figure 1 shows a wet cleaning device 1, which is designed here as a hand-held wet cleaning device 1 with a base unit 20 and an attachment device 21.
  • the front attachment 21 is detachably held on the base unit 20.
  • the base device 20 also has a handle 22, which is designed here, for example, to be telescopic, so that a user of the wet cleaning device 1 can adapt the length of the handle 22 to his body size.
  • a handle 23 is also arranged on the handle 22, on which the user can guide the wet cleaning device 1 during a normal wiping operation, ie slide it over a surface to be cleaned. During the wiping operation, the user usually guides the wet cleaning device 1 in opposite directions of movement r over the surface to be cleaned. He alternately pushes the wet cleaning device 1 away from him or pulls it towards himself.
  • the front attachment 21 has a housing 8 in which a cleaning roller 2 is held.
  • a filler neck 19 is arranged on the housing 8, through which liquid is poured into a liquid tank (not shown) can be.
  • the water stored in the liquid tank serves for the external moistening of the cleaning roller 2.
  • the cleaning roller 2 is mounted rotatably about a roller axis 3 within the housing 8. During a wiping operation, the cleaning roller 2 rotates about the roller axis 3, so that the peripheral surface of the cleaning roller 2 continuously rolls on a surface to be cleaned.
  • the cleaning roller 2 is usually wrapped with a cleaning covering, optionally with the interposition of an additional liquid-storing sponge body.
  • the cleaning surface here is, for example, a textile cleaning cloth, between whose fibers liquid can also be absorbed.
  • Figure 2 shows a partial area of the housing 8 of the front attachment 21, in which the cleaning roller 2 is held rotatably about the roller axis 3.
  • a roller cover 12 is arranged on the housing 8 and surrounds the cleaning roller 2 semicircularly at least over an angular range of approximately 180 degrees.
  • the roller cover 12 can be removed from the housing 8 of the wet cleaning device 1, so that optimum accessibility, for example for maintenance, is provided.
  • the roller cover 12 points with respect to the opposite circumferential side of the cleaning roller 2-in Figure 2 viewed from below - an opening area 13 through which the cleaning roller 2 can come into contact with the surface to be cleaned during a normal wiping operation.
  • the cleaning roller 2 is moved into the housing 8 and the roller cover 12 and the opening area 13 is closed with a cover element 11, so that the cleaning roller 2 is completely encapsulated in the circumferential direction.
  • a functional unit 6 which has a moistening device 4 and a stripping device 5.
  • the functional unit 6 is mounted in the housing 8 so as to be pivotable about a pivot axis 7, so that it can be pivoted relative to the surface of the cleaning roller 2, i. H. either towards the cleaning roller 2 or away from the cleaning roller 2.
  • the functional unit 6 is assigned a displacement drive 10, here a gearwheel as part of a transmission, via which the entire functional unit 6 can also be removed from the cleaning roller 2, in particular for a wiping operation of the wet cleaning device 1, in which there is a sufficient distance between the cleaning roller 2 and the functional unit 6 is required to ensure a completely free running of the cleaning roller 2.
  • a cover drive 24, which interacts with the displacement drive 10, serves to move the cover element 11.
  • the moistening device 4 serves to moisten the cleaning roller 2.
  • the moistening device 4 has in detail a liquid feed line 17, a distribution device 15 and a plurality of outlet openings 16 (see Figure 7 ) on.
  • the liquid supply line 17 is used to supply liquid from a liquid container of the wet cleaning device 1 to the distribution device 15.
  • the distribution device 15 is - just like the whole Functional unit 6 and thus also the moistening device 4 - formed along the entire longitudinal extent of the cleaning roller 2.
  • the distribution device 15 essentially forms a liquid channel running along the longitudinal extent of the cleaning roller 2, the channel wall of which has the plurality of outlet openings 16 for the discharge of liquid onto the cleaning roller 2.
  • the liquid is advantageously pumped from the liquid container into the liquid feed line 17, so that the liquid in the distribution device 15 is under pressure and can be sprayed onto the surface of the cleaning roller 2 through the outlet openings 16.
  • a fine spray mist which is homogeneous over the longitudinal extent of the cleaning roller 2, can result, which leads to a uniform moistening of the cleaning roller 2.
  • the outlet openings 16 are arranged in a partial area of the distribution device 15 which is directly adjacent to the cleaning roller 2, namely in the Figure 2 at the top right of the functional unit 6, above the stripping device 5.
  • the wiper device 5 can mechanically wipe off liquid and dirt from the surface of the cleaning roller 2 during a regeneration operation of the wet cleaning device 1.
  • the stripping device 5 is also formed over the entire length of the cleaning roller 2, so that it can scrape liquid and dirt from the cleaning roller 2 over the entire surface.
  • the rotation of the cleaning roller 2 results in a complete cleaning of the circumferential surface of the cleaning roller 2.
  • the liquid wiped off the cleaning roller 2 enters a disposal channel 14 which is arranged in the drawing below the wiping device 5 and which, for example, opens into a collecting container (not shown).
  • Air guiding device 18 supports, which has a plurality of air guiding ribs, which point in the circumferential direction of the cleaning roller 2. The air accelerated by the rotation of the cleaning roller 2 is directed in the direction of the disposal channel 14 by means of the air guide device 18.
  • the functional unit 6 is mounted on the one hand by means of a bearing 26 and on the other hand by means of an actuating device 9 in the housing 8.
  • the bearing 26 additionally connects the liquid supply line 17 to a liquid supply to the wet cleaning device 1.
  • the actuating device 9 serves to press the functional unit 6 against the cleaning roller 2.
  • the actuating device 9 has, as later in FIG Figure 9 shown, a spring 25 for pressing the functional unit 6, in particular the stripping device 5, onto the surface of the cleaning roller 2.
  • FIG 3 shows a cross section of the in Figure 2
  • the section of the front attachment 21 shown can be seen from the roller cover 12 arranged on the housing 8, in which the functional unit 6 can be removed.
  • the opening area 13 of the roller cover 12 pointing in the direction of a surface to be cleaned is opened here, ie released by the displaceable cover element 11.
  • the cover element 11 can be pivoted into the opening area 13 or out of the opening area 13 of the roller cover 12 by means of the cover drive 24.
  • This cover drive 24 is coupled to the displacement drive 10 for the functional unit 6, so that at the same time as the cover element 11 is displaced into the opening area 13, the functional unit 6 is moved to the cleaning roller 2.
  • the functional unit 6 is pivotally mounted in the roller cover 12 by means of the pivot axis 7.
  • Figure 4 shows the functional unit 6 in an enlarged view with the moistening device 4, the stripping device 5 and the disposal channel 14 for removing the liquid collected by the stripping device 5.
  • Figure 5 shows the partial area of the front attachment 21 according to Figure 3 with the functional unit 6 pivoted towards the cleaning roller 2 and the opening area 13 closed by the cover element 11. This corresponds to the position of the functional unit 6 during regeneration operation of the cleaning roller 2.
  • the cleaning roller 2 is completely encased in the circumferential direction by the roller cover 12 and the covering element 11.
  • Figure 6 shows an enlarged portion of the Figure 5 .
  • the functional unit 6 rests with the stripping device 5 on the cleaning surface of the cleaning roller 2.
  • the cleaning covering is an example of a textile covering with essentially radially projecting fibers.
  • the fibers are not drawn to scale relative to the size of the cleaning roller 2 - for better visibility.
  • the fibers have a length of 1 mm to 10 mm, for example.
  • the fibers are bent and pressed against the cleaning roller 2.
  • the cleaning roller 2 rotates counterclockwise in the figure. After passing the stripping device 5, the fibers are straightened up again, since the stripping device 5 no longer lies against this circumferential region.
  • liquid and / or dirt is thrown off the fibers and fed directly to the disposal channel 14.
  • the Figure 7 shows the in Figure 2 roller cover 12 shown with the functional unit 6 in a view from the bottom below, ie viewed from a point on the surface of the cleaning roller 2.
  • the bearing 26 and the actuating device 9 are shown, via which the functional unit 6 is held in the roller cover 12 about a pivot axis 7.
  • the bearing 26 is connected to the liquid supply line 17, which opens into the distribution device 15 of the moistening device 4. Liquid can thus get from a liquid tank through the bearing 26 into the liquid feed line 17 and from there into the distribution device 15. The liquid can then escape through the outlet openings 16 of the distribution device 15 in the direction of the cleaning roller 2.
  • the stripping device 5 Under the outlet openings 16 (based on the representation according to Figure 7 ) the stripping device 5 is arranged.
  • the scraper device 5 presses against the surface of the cleaning roller 2 during a regeneration operation of the wet cleaning device 1 and thereby strips off liquid or dirt from the cleaning roller 2.
  • the liquid or the dirt can flow directly into the disposal channel 14 adjacent to the stripping device 5 and into, for example, a collecting container of the wet cleaning device 1.
  • the functional unit 6 can be removed from the roller cover 12 for the purpose of maintenance or cleaning. After cleaning the functional unit 6, for example, it can then be reinserted into the roller cover 2 by inserting the pivot axis 7 of the functional unit 6 into the bearing 26, which is designed as a rotary feedthrough. The functional unit 6 is then pivoted, for example, around the bearing 26, so that the actuating device 9 can also be introduced into the roller cover 12 as a counter bearing. The actuating device 9 is then locked. The roller cover 12 can then be connected to the housing 8 of the front attachment 21, the functional unit 6 being advantageously shifted into a position corresponding to a wiping operation of the wet cleaning device 1. The disassembly of the functional unit 6 from the roller cover 12 is carried out accordingly in the reverse order. First, the roller cover 12 is separated from the housing 8 of the attachment 21. The actuating device 9 is then unlocked and the functional unit 6 is pivoted out. The pivot axis 7 of the functional unit 6 can then be pulled out of the bearing 26.
  • Figure 8 shows the bearing 26 for receiving the pivot axis 7 of the functional unit 6.
  • the bearing 26 provides a rotary feedthrough for the liquid feed line 17 and has sealing elements 27 for sealing, here for example a shaft sealing ring and an O-ring.
  • sealing elements 27 for sealing, here for example a shaft sealing ring and an O-ring.
  • Figure 9 shows the actuating device 9 which is arranged on the end side of the pivot axis 7 opposite the bearing 26.
  • the actuating device 9 has a spring 25 which exerts a restoring force on the end region of the functional unit 6 shown.
  • the restoring force of the spring 25 acts in the direction of the cleaning roller 2, so that the spring 25 tries to pivot the functional unit 6 in the direction of the cleaning roller 2.
  • FIGS. 10 to 12 show the functional unit 6 in a view from above, the Figures 11 and 12 are shown broken up in different levels or partial areas.
  • Figure 10 shows in particular the distribution device 15, which has the air guide device 18 with a plurality of air guide ribs on the upper side shown.
  • Disposal channel 14 is located below distribution device 15, through which liquid or stripped dirt stripped from cleaning roller 2 can reach a collecting container by means of stripping device 5. This is supported by the air guided in the direction of the disposal duct 14 by means of the air guide device 18 and swirled by the rotation of the cleaning roller 2.
  • the actuating device 9 and a partial region of the liquid supply line 17 can also be seen.
  • Figure 11 shows the course of the liquid supply line 17 within the functional unit 6 to the distribution device 15 of the humidification device 4.
  • Figure 12 shows a broken view in the area of the distribution device 15, the ventilation device 18 being partially cut open.
  • the outlet openings 16 of the distribution device 15 can be seen, through which the liquid from the moistening device 4 can be sprayed onto the cleaning roller 2.
  • the functional unit 6 can now be used according to the invention both for moistening the cleaning roller 2 before wiping the wet cleaning device and for regenerating the cleaning roller 2.
  • the functional unit 6 is usually completely spaced from the cleaning roller 2 by means of the displacement drive 10, so that there is no contact between the stripping device 5 of the functional unit 6 and the surface of the cleaning roller 2.
  • the previously moistened cleaning roller 2 can thus move freely over a surface to be cleaned.
  • dirt removed from the surface to be cleaned accumulates on the surface of the cleaning roller 2, in particular in a cleaning surface of the cleaning roller 2, so that after a certain operating time regeneration of the cleaning roller 2 is recommended in order to achieve the best possible wiping result .
  • the opening area 13 of the roller cover 12 is closed by means of the cover element 11, so that there is a complete housing for the cleaning roller 2 in the circumferential direction.
  • the cover element 11 is displaced via the cover drive 24. Since the cover drive 24 is operatively connected to the displacement drive 10 of the functional unit 6, the functional unit 6 is also pivoted toward the cleaning roller 2 when the cover element 11 is displaced until the stripping device 5 against the cleaning roller 2 presses, the spring 25 of the actuating device 9 additionally providing the necessary contact pressure and creating tolerance compensation for the rotating cleaning roller 2.
  • the cleaning roller 2 is greatly accelerated, that is, rotated at a speed which is higher than the speed during the wiping operation of the wet cleaning device 1.
  • liquid and / or dirt is stripped off the cleaning roller 2 and / or by the cleaning roller 2 hurled.
  • the liquid and / or the dirt reach the disposal channel 14 arranged directly next to the stripping device 5 and flow due to the acting gravity from the functional device 6 in the direction of a collecting container.
  • the air accelerated by the rotation of the cleaning roller 2 is additionally guided through the air guide ribs of the air guide device 18 in the direction of the disposal channel 14 and thereby supports the removal of the liquid or the dirt.
  • the functional unit 6 is moved so far towards the cleaning roller 2 that the stripping device 5 just just touches the fibers of the cleaning covering of the cleaning roller 2, for example with an overlap area of maximum 1 mm.
  • the cleaning roller 2 is rotated at a speed which is reduced compared to the speed during a wiping operation.
  • liquid optionally with the addition of a cleaning additive, is sprayed onto the cleaning roller 2, the liquid being under pressure within the moistening device 4 and being sprayed out of the outlet openings 16.
  • the moistening device sprays onto the surface of the cleaning roller 2 from a distance of 5 mm to 10 mm, for example.
  • the liquid wets the surface of the cleaning roller 2, the stripping device 5 pressing the liquid between the adjacent fibers of the cleaning coating of the cleaning roller 2.
  • the liquid is applied piece by piece during the continued rotation of the cleaning roller 2 within one or more complete rotations of the cleaning roller 2 about the roller axis 3 and distributed until the cleaning roller 2 is completely moistened.
  • the functional unit 6 is then removed from the cleaning roller 2, the roller cover 12 is opened and the cleaning roller 2 prepared for a wiping operation is lowered again, for example, onto the surface to be cleaned. During the subsequent wiping operation, the cleaning roller 2 then picks up dirt again from the surface to be cleaned.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP17730482.1A 2016-06-28 2017-06-16 Feuchtreinigungsgerät mit einer rotierbaren reinigungswalze Active EP3474717B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016111808.7A DE102016111808A1 (de) 2016-06-28 2016-06-28 Feuchtreinigungsgerät mit einer rotierbaren Reinigungswalze
PCT/EP2017/064748 WO2018001754A1 (de) 2016-06-28 2017-06-16 Feuchtreinigungsgerät mit einer rotierbaren reinigungswalze

Publications (2)

Publication Number Publication Date
EP3474717A1 EP3474717A1 (de) 2019-05-01
EP3474717B1 true EP3474717B1 (de) 2020-07-29

Family

ID=59067678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17730482.1A Active EP3474717B1 (de) 2016-06-28 2017-06-16 Feuchtreinigungsgerät mit einer rotierbaren reinigungswalze

Country Status (8)

Country Link
US (1) US10758102B2 (zh)
EP (1) EP3474717B1 (zh)
JP (1) JP2019520145A (zh)
CN (1) CN109310260B (zh)
DE (1) DE102016111808A1 (zh)
ES (1) ES2813173T3 (zh)
TW (1) TW201804948A (zh)
WO (1) WO2018001754A1 (zh)

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CN111820827A (zh) * 2019-04-15 2020-10-27 添可智能科技有限公司 地刷组件和地面清洗机
CN117958661A (zh) * 2019-04-30 2024-05-03 湖北穿石智能电器有限公司 一种手持式拖扫结构
CN114144104B (zh) * 2019-07-24 2023-04-28 阿尔弗雷德·卡赫欧洲两合公司 地面清洁机
EP4025110A1 (de) 2019-09-06 2022-07-13 Alfred Kärcher SE & Co. KG Bodenreinigungsmaschine mit haaraufnahme und verfahren zum betreiben einer bodenreinigungsmaschine
US11825933B2 (en) 2020-01-08 2023-11-28 Sharkninja Operating Llc Liquid-permeable brush roll for use with cleaners including robotic cleaners
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Also Published As

Publication number Publication date
ES2813173T3 (es) 2021-03-22
CN109310260B (zh) 2021-06-29
EP3474717A1 (de) 2019-05-01
US20190125155A1 (en) 2019-05-02
US10758102B2 (en) 2020-09-01
TW201804948A (zh) 2018-02-16
WO2018001754A1 (de) 2018-01-04
CN109310260A (zh) 2019-02-05
JP2019520145A (ja) 2019-07-18
DE102016111808A1 (de) 2017-12-28

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