EP3750465B1 - Self-cleaning floor cleaning machine - Google Patents

Self-cleaning floor cleaning machine Download PDF

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Publication number
EP3750465B1
EP3750465B1 EP20177509.5A EP20177509A EP3750465B1 EP 3750465 B1 EP3750465 B1 EP 3750465B1 EP 20177509 A EP20177509 A EP 20177509A EP 3750465 B1 EP3750465 B1 EP 3750465B1
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EP
European Patent Office
Prior art keywords
cleaning machine
floor cleaning
floor
self
movement
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EP20177509.5A
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German (de)
French (fr)
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EP3750465A1 (en
Inventor
Norbert Werner
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Individual
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Individual
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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
    • A47L11/24—Floor-sweeping machines, motor-driven
    • 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
    • A47L11/16—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • A47L11/161—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes 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
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • A47L11/305—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools the tools being disc brushes
    • 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
    • A47L11/4038—Disk 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
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Definitions

  • the invention relates to a self-propelled floor cleaning machine with a chassis that drives the floor cleaning machine movably and has at least one drive wheel that can be driven in one direction of rotation and a control device for controlling the movement of the floor cleaning machine, with several rotatably driven sweeping brushes through which the floor to be cleaned is located Dirt particles can be conveyed to a first suction nozzle which absorbs the dirt particles, one or more moisture nozzles directed towards the floor to be cleaned in the direction of the movement of the floor cleaning machine behind the sweeping brushes and one or more movably drivable scrubbing brushes behind the moisture nozzles in the direction of the movement of the floor cleaning machine.
  • a self-propelled floor cleaning machine with a chassis which drives the floor cleaning machine movably and has at least one drive wheel that can be driven in one direction of rotation and a control device for controlling the movement of the floor cleaning machine.
  • the dirt particles located on the floor to be cleaned can be conveyed to a first suction nozzle that absorbs the dirt particles by means of several rotatably driven sweeping brushes.
  • a self-propelled floor cleaning machine with a chassis which drives the floor cleaning machine movably and has at least one drive wheel that can be driven in one direction of rotation and a control device for controlling the movement of the floor cleaning machine.
  • the dirt particles located on the floor to be cleaned can be conveyed to a container that receives the dirt particles by means of a rotatably driven sweeping brush.
  • a rotatably driven sweeping brush In the direction of movement of the floor cleaning machine behind the sweeping brushes are one or more moisture nozzles directed towards the floor to be cleaned and in the direction of movement of the floor cleaning machine a liquid absorption device is arranged behind the moisture nozzles.
  • the object of the invention is to create a self-propelled floor cleaning machine of the type mentioned at the beginning which, by removing dirt particles, also enables dirt adhering to the floor to be removed.
  • any dirt adhering to the floor is first loosened by moistening it with a liquid and then massively rubbed off the floor by the scrubbing brushes in a main cleaning process, in order then to be sucked off with the liquid. Because the dirt particles have already been removed when the dirt adhering to the floor is moistened and rubbed off, contamination of the liquid is avoided even before the dirt adhering to the floor is rubbed off. An impairment The cleaning performance by using an already contaminated liquid when rubbing the floor with the scrubbing brushes is avoided.
  • the first suction nozzle is preferably subjected to a negative pressure by a particle suction motor and the dirt particles are fed to a dirt particle container.
  • a negative pressure can be applied to the second suction nozzle by a dirty water suction motor and the dirty water can be fed to a dirty water container.
  • the moisture nozzles receive their liquid from a liquid container by means of a liquid pump.
  • the moistening with the liquid is preferably carried out by drops emitted by the moisture nozzles, whereby sufficient, but not too much, liquid is used, which could then possibly no longer be sufficiently absorbed by the second suction nozzles, so that a film of dirt would remain.
  • the liquid is preferably water. But it is also possible that a different type of cleaning liquid is used.
  • the floor cleaning machine can have a horizontally extending base plate that supports all of the components of the floor cleaning machine.
  • the base plate is a round base plate, one corner of it cannot hit an object standing on the floor and thereby unintentionally change its direction of movement.
  • the scrubbing brushes can be one or more first scrubbing brushes that can be rotatably driven.
  • one or more rotatably drivable first scrubbing brushes are arranged in mutually opposite edge regions of the floor cleaning machine, then cleaning can take place up to the outermost edge of the base plate.
  • two rotatably drivable scrubbing brushes are preferably arranged diametrically opposite one another over the center of the base plate.
  • one or more moisture nozzles directed towards the floor to be cleaned can be arranged in front of the first scrubbing brushes in the direction of the movement of the floor cleaning machine.
  • one or more second scrubbing brushes can be driven to swing back and forth transversely to the direction of movement of the floor cleaning machine.
  • first scrubbing brushes in the direction of the movement of the floor cleaning machine are arranged in front of, but laterally outside the area to be cleaned by the second scrubbing brush
  • moisture extractors can be arranged behind the first scrubbing brushes in the direction of the movement of the floor cleaning machine, through the moisture on the floor to be cleaned can be wiped off and into an area in front of the scrubbing brushes swinging back and forth transversely to the direction of movement of the floor cleaning machine.
  • the liquid is guided in the direction of movement behind the first scrubbing brushes into an area in which the moisture can then be absorbed.
  • the moisture extractor preferably has an elastic wiping edge through which moisture can be wiped off the floor to be cleaned.
  • the scrubbing brushes can be moved perpendicular to the floor to be cleaned and can be acted upon by a spring force on the floor to be cleaned, then even dirt adhering to the floor is loosened from the floor and thus an increased cleaning effect is achieved.
  • the second suction nozzle can extend parallel to the movement of the second scrubbing brush that can be driven back and forth.
  • the second suction nozzle is a suction strip that extends over the length of the second scrubbing brush, wherein the suction strip can have an elastic wiping edge through which moisture can be wiped off the floor to be cleaned.
  • the scraper edge can be inclined at an angle counter to the direction of movement of the floor cleaning machine.
  • the chassis of the floor cleaning machine can have two drive wheels which can be driven separately from one another by a motor and which can be arranged diametrically opposite one another at a distance from one another on a line extending over the center of the base plate.
  • An arrangement on a line extending over the center of the base plate has the advantage that the floor cleaning machine can rotate on the spot.
  • a swivel castor can be arranged in front of the drive wheels in the direction of the movement of the floor cleaning machine, which is freely rotatable about a horizontal axis of rotation and freely pivotable about a pivot axis, the pivot axis perpendicularly crossing the axis of rotation.
  • the swivel castor can also be formed by a ball which is guided in a freely movable manner in a ball seat open towards the bottom.
  • the control device for controlling the movement of the floor cleaning machine can be controlled by several stop sensors, which are arranged protruding on the front half of the base plate in the direction of movement of the floor cleaning machine and which generate a signal when they are moved against a resistance.
  • the stop sensors can be enclosed by a bumper extending along the front half of the base plate, which can be actuated in the plane of the base plate against spring forces towards the base plate so that it can be moved to trigger the stop sensors.
  • the floor cleaning machine shown in the figures has a circular base plate 1 which extends horizontally with its plane, which serves as a carrier for the components of the floor cleaning machine and which moves automatically at a distance over a floor 3 to be cleaned during a cleaning process.
  • the floor cleaning machine has a chassis which has two drive wheels 2, 2 'which can be driven separately by a motor and which are arranged at a distance from one another on a line extending across the center of the base plate 1, diametrically opposite one another in the edge region of the base plate 1.
  • a steering roller 4 can be arranged in front of the drive wheels 2, 2 ', which can be freely rotated about a horizontal axis of rotation 5 and freely pivotable about a pivot axis 6, the pivot axis 6 crossing the axis of rotation 5 perpendicularly.
  • the direction of the movement 22 of the floor cleaning machine always corresponds to the orientation of the steering roller 4.
  • the floor cleaning machine can be steered by the separate motor drive of the drive wheels 2 and 2 '.
  • a first suction nozzle 8 which is subjected to negative pressure by a particle suction motor 19, through which the sweeping brushes 7, 7 'swept from the bottom 3 and to the first Suction nozzle 8 sucked up dirt particles conveyed and conveyed further into a dirt particle container 9 arranged on the upper side of the base plate 1.
  • a rotatably drivable first scrubbing brush 10 of round cross-section is arranged radially outside the drive wheels 2, 2 ′ and behind the sweeping brushes 7, the circumferential contour of which extends to the radially circumferential contour of the base plate 1.
  • a first moisture nozzle 11 is arranged upstream of the first scrubbing brushes 10, from which water is dispensed drop by drop from a fresh water container 12 arranged on the upper side of the base plate 1 onto the floor 3.
  • the fresh water pump 13 draws in water from the fresh water container 12 and pumps it to the moisture nozzles 11 and 17.
  • Dirt adhering to the floor 3 and moistened by the moisture nozzles 11 is loosened from the floor by the first scrubbing brushes 10 and is conducted to an inner area of the base plate 1 by the first moisture extractors 14 downstream of the first scrubbing brushes 10 in the direction of the movement 22 of the floor cleaning machine.
  • the scrubbing brushes 10 rest on the floor 3 with a contact pressure and can thus ensure that the dirt is removed from the floor effectively, they are guided so that they can move vertically and are acted upon by first compression springs 27 against the floor 3.
  • the first moisture extractors 14, designed as peel strips, extend from the radially circumferential contour of the base plate 1 to the inner region of the base plate 1, whereby they are inclined against the direction of movement 22 of the floor cleaning machine.
  • a scrubbing brush strip 15 with a plurality of second scrubbing brushes 16 is arranged opposite to the direction of movement 22 of the floor cleaning machine behind the drive wheels 2, 2 ′ and the first moisture extractors 14.
  • two second moisture nozzles 17 are arranged, from which water is dispensed drop by drop from the fresh water container 12 arranged on the top of the base plate 1 onto the floor 3.
  • the floor 3 is moistened and, as the floor cleaning machine moves further, dirt adhering to the floor 3 and moistened by the moisture nozzles 11 is released from the floor 3 by the scrubbing brush strip 15 with the second scrubbing brushes 16, which can be driven back and forth to the direction of movement 22 of the floor cleaning machine .
  • the range of motion of the scrubbing brush strip 15, which can be driven back and forth, extends so far that the moistened dirt conducted by the first moisture extractors 14 to the inner area of the base plate 1 reaches the area of the scrubbing brush strip 15.
  • the scrubbing brush strip 15 is linearly guided on a linear guide 28 arranged on the underside of the base plate 1, the movable part 29 of the linear guide 28 being driven to oscillate linearly back and forth by a rotatably driven eccentric 30.
  • a brush holder 36 carrying the second scrubbing brushes 16 of the scrubbing brush strip 15 is arranged so as to be vertically movable.
  • the brush holder 36 and with it the second scrubbing brushes 16 are supported by the second compression springs 37 supported on the movable part 29 applied with a certain force towards the floor 3 in order to ensure that the dirt is removed from the floor 3 well.
  • the rotary drive of the eccentric 30 takes place via a first belt pulley 31 and a drive belt (not shown) from a second belt pulley 35 of a drive motor 33 arranged on the upper side of the base plate 1.
  • This drive motor 33 also drives the first scrubbing brushes 10 in a rotatable manner via third pulleys 41 and second drive belts (not shown) and fourth pulleys 42 of the first scrubbing brushes 10.
  • a suction strip 18 is arranged parallel to the scrubbing brush strip 15, which extends over the range of motion of the scrubbing brush strip 15 swinging back and forth.
  • the suction bar 18 is subjected to negative pressure by a dirty water suction motor 20.
  • the dirty water sucked up by the squeegee 18 first reaches a small second dirty water container 38 and is conveyed from there by a pump 39 via a hose 40 to the dirty water container 21.
  • the squeegee 18 has at its end region opposite to the direction of movement 22 extending over its length a stripping edge 23 made of an elastic material, which wipes the dirty water on the floor 3 from the floor 3 so that it can be sucked up by the squeegee 18 .
  • the drive motors 24, 24 'of the drive wheels 2, 2' can be controlled by a control device, not shown, of the movement of the floor cleaning machine.
  • the control receives control signals from three stop sensors 25, which are arranged protruding on the front half of the base plate 1 in the direction of movement 22 of the floor cleaning machine, and which project a control signal when they are moved against a resistance such as a wall.
  • the stop sensors 25 are enclosed by a bumper 26 extending along the front half of the base plate 1, which can be actuated to trigger the stop sensors 25 against the resistance in the plane of the base plate 1 against spring forces towards the base plate 1 when the floor cleaning machine is moving.

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Description

Die Erfindung bezieht sich auf eine selbstfahrende Bodenreinigungsmaschine mit einem Fahrwerk, welches die Bodenreinigungsmaschine bewegbar antreibt und zumindest ein in eine Drehrichtung antreibbares Antriebsrad sowie eine Steuervorrichtung zur Steuerung der Bewegung der Bodenreinigungsmaschine aufweist, mit mehreren rotierbar angetriebenen Kehrbürsten, durch die auf dem zu reinigenden Boden befindliche Schmutzpartikel zu einer die Schmutzpartikel aufsaugenden ersten Saugdüse förderbar sind, wobei in Richtung der Bewegung der Bodenreinigungsmaschine hinter den Kehrbürsten ein oder mehrere auf den zu reinigenden Boden gerichtete Feuchtigkeitsdüsen und in Richtung der Bewegung der Bodenreinigungsmaschine hinter den Feuchtigkeitsdüsen ein oder mehrere bewegbar antreibbare Schrubbürsten angeordnet sind.The invention relates to a self-propelled floor cleaning machine with a chassis that drives the floor cleaning machine movably and has at least one drive wheel that can be driven in one direction of rotation and a control device for controlling the movement of the floor cleaning machine, with several rotatably driven sweeping brushes through which the floor to be cleaned is located Dirt particles can be conveyed to a first suction nozzle which absorbs the dirt particles, one or more moisture nozzles directed towards the floor to be cleaned in the direction of the movement of the floor cleaning machine behind the sweeping brushes and one or more movably drivable scrubbing brushes behind the moisture nozzles in the direction of the movement of the floor cleaning machine.

Bei derartigen selbstfahrenden Bodenreinigungsmaschinen erfolgt ein Zusammentragen und Abführen von Schmutzpartikeln. Hartnäckig an dem Boden anhaftender Schmutz wird aber durch die Kehrbürsten nicht erfaßt und der Saugdüse zugeführt.In such self-propelled floor cleaning machines, dirt particles are collected and removed. However, dirt stubbornly adhering to the floor is not caught by the sweeping brushes and fed to the suction nozzle.

Aus der EP 3 257 416 A1 ist eine selbstfahrende Bodenreinigungsmaschine der eingangs genannten Art bekannt.From the EP 3 257 416 A1 a self-propelled floor cleaning machine of the type mentioned is known.

Aus der DE 10 2015 101 587 B3 ist eine selbstfahrende Bodenreinigungsmaschine mit einem Fahrwerk bekannt, welches die Bodenreinigungsmaschine bewegbar antreibt und zumindest ein in eine Drehrichtung antreibbares Antriebsrad sowie eine Steuervorrichtung zur Steuerung der Bewegung der Bodenreinigungsmaschine aufweist. Durch mehreren rotierbar angetriebenen Kehrbürsten sind die auf dem zu reinigenden Boden befindlichen Schmutzpartikel zu einer die Schmutzpartikel aufsaugenden ersten Saugdüse förderbar.From the DE 10 2015 101 587 B3 a self-propelled floor cleaning machine with a chassis is known which drives the floor cleaning machine movably and has at least one drive wheel that can be driven in one direction of rotation and a control device for controlling the movement of the floor cleaning machine. The dirt particles located on the floor to be cleaned can be conveyed to a first suction nozzle that absorbs the dirt particles by means of several rotatably driven sweeping brushes.

Aus der EP 2 436 296 A1 ist eine selbstfahrende Bodenreinigungsmaschine mit einem Fahrwerk bekannt, welches die Bodenreinigungsmaschine bewegbar antreibt und zumindest ein in eine Drehrichtung antreibbares Antriebsrad sowie eine Steuervorrichtung zur Steuerung der Bewegung der Bodenreinigungsmaschine aufweist. Durch eine rotierbar angetriebene Kehrbürste sind die auf dem zu reinigenden Boden befindlichen Schmutzpartikel zu einem die Schmutzpartikel aufnehmenden Behälter förderbar. In Richtung der Bewegung der Bodenreinigungsmaschine hinter der Kehrbürsten sind ein oder mehrere auf den zu reinigenden Boden gerichtete Feuchtigkeitsdüsen und in Richtung der Bewegung der Bodenreinigungsmaschine hinter den Feuchtigkeitsdüsen eine Flüssigkeitsaufnahmeeinrichtung angeordnet.From the EP 2 436 296 A1 a self-propelled floor cleaning machine with a chassis is known which drives the floor cleaning machine movably and has at least one drive wheel that can be driven in one direction of rotation and a control device for controlling the movement of the floor cleaning machine. The dirt particles located on the floor to be cleaned can be conveyed to a container that receives the dirt particles by means of a rotatably driven sweeping brush. In the direction of movement of the floor cleaning machine behind the sweeping brushes are one or more moisture nozzles directed towards the floor to be cleaned and in the direction of movement of the floor cleaning machine a liquid absorption device is arranged behind the moisture nozzles.

Aufgabe der Erfindung ist es eine selbstfahrende Bodenreinigungsmaschine der eingangs genannten Art zu schaffen, die über ein Beseitigen von Schmutzpartikeln auch ein Beseitigen von an dem Boden anhaftendem Schmutz ermöglicht.The object of the invention is to create a self-propelled floor cleaning machine of the type mentioned at the beginning which, by removing dirt particles, also enables dirt adhering to the floor to be removed.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß auf den den Feuchtigkeitsdüsen abgewandten Seiten der Schrubbürsten ein oder mehrere mit ihrer Saugöffnung zum Boden gerichtete zweite Saugdüsen angeordnet sind.This object is achieved according to the invention in that on the sides of the scrubbing brushes facing away from the moisture nozzles, one or more second suction nozzles with their suction opening directed towards the floor are arranged.

Nach dem Beseitigen der locker auf dem Boden aufliegenden Schmutzpartikel in einer Vorreinigung wird möglicher an dem Boden anhaftender Schmutz zunächst durch Befeuchten mit einer Flüssigkeit gelöst und anschließend durch die Schrubbürsten in einer Hauptreinigung massiv vom Boden abgerieben, um dann mit der Flüssigkeit abgesaugt zu werden. Dadurch, daß die Schmutzpartikel bereits entfernt sind, wenn es zu einem Befeuchten und Abreiben des am Boden anhaftenden Schmutzes kommt, wird eine Verschmutzung der Flüssigkeit bereits bevor es zum Abreiben des am Boden anhaftenden Schmutzes kommt vermieden. Ein Beeinträchtigen der Reinigungsleistung durch Verwendung einer bereits verschmutzten Flüssigkeit beim Abreiben des Bodens durch die Schrubbürsten wird so vermieden.After removing the dirt particles loosely on the floor in a preliminary cleaning, any dirt adhering to the floor is first loosened by moistening it with a liquid and then massively rubbed off the floor by the scrubbing brushes in a main cleaning process, in order then to be sucked off with the liquid. Because the dirt particles have already been removed when the dirt adhering to the floor is moistened and rubbed off, contamination of the liquid is avoided even before the dirt adhering to the floor is rubbed off. An impairment The cleaning performance by using an already contaminated liquid when rubbing the floor with the scrubbing brushes is avoided.

Die erste Saugdüse wird vorzugsweise von einem Partikelsaugmotor mit einem Unterdruck beaufschlagt und die Schmutzpartikel einem Schmutzpartikelbehälter zugeführt.The first suction nozzle is preferably subjected to a negative pressure by a particle suction motor and the dirt particles are fed to a dirt particle container.

Die zweite Saugdüse kann von einem Schmutzwassersaugmotor mit einem Unterdruck beaufschlagbar und das Schmutzwasser einem Schmutzwasserbehälter zuführbar sein.A negative pressure can be applied to the second suction nozzle by a dirty water suction motor and the dirty water can be fed to a dirty water container.

Die Feuchtigkeitsdüsen erhalten ihre Flüssigkeit mittels einer Flüssigkeitspumpe aus einem Flüssigkeitsbehälter zugeführt.The moisture nozzles receive their liquid from a liquid container by means of a liquid pump.

Die Befeuchtung mit der Flüssigkeit erfolgt vorzugsweise durch von den Feuchtigkeitsdüsen ausgegebenen Tropfen, wodurch zwar ausreichend, aber nicht zu viel an Flüssigkeit zur Anwendung kommt, die dann möglicherweise nicht mehr ausreichend von den zweiten Saugdüsen aufgenommen werden könnte, so daß ein Schmutzfilm bleiben würde.The moistening with the liquid is preferably carried out by drops emitted by the moisture nozzles, whereby sufficient, but not too much, liquid is used, which could then possibly no longer be sufficiently absorbed by the second suction nozzles, so that a film of dirt would remain.

Die Flüssigkeit ist vorzugsweise Wasser. Es ist aber auch möglich, daß eine andersgeartete Reinigungsflüssigkeit zur Anwendung kommt.The liquid is preferably water. But it is also possible that a different type of cleaning liquid is used.

Die Bodenreinigungsmaschine kann eine sich horizontal erstreckende Grundplatte aufweisen, die alle Komponenten der Bodenreinigungsmaschine trägt.The floor cleaning machine can have a horizontally extending base plate that supports all of the components of the floor cleaning machine.

Ist die Grundplatte eine runde Grundplatte, so kann sie nicht mit einer Ecke an einem auf dem Boden stehenden Gegenstand anstoßen und dadurch ungewollt ihre Bewegungsrichtung verändern.If the base plate is a round base plate, one corner of it cannot hit an object standing on the floor and thereby unintentionally change its direction of movement.

Die Schrubbürsten können ein oder mehrere erste Schrubbürsten sein, die drehbar antreibbar sind.The scrubbing brushes can be one or more first scrubbing brushes that can be rotatably driven.

Sind dabei in einander gegenüberliegenden Randbereichen der Bodenreinigungsmaschine jeweils eine oder mehrere drehbar antreibbare erste Schrubbürsten angeordnet, so kann eine Reinigung bis in den äußersten Rand der Grundplatte erfolgen.If one or more rotatably drivable first scrubbing brushes are arranged in mutually opposite edge regions of the floor cleaning machine, then cleaning can take place up to the outermost edge of the base plate.

Bei einer runden Grundplatte sind vorzugsweise jeweils zwei drehbar antreibbare Schrubbürsten über die Mitte der Grundplatte sich diametral gegenüberliegend angeordnet.In the case of a round base plate, two rotatably drivable scrubbing brushes are preferably arranged diametrically opposite one another over the center of the base plate.

Damit von den drehbar antreibbaren Schrubbürsten bereits durch Befeuchten mit der Flüssigkeit angelöster Schmutz vom Boden abgerieben werden kann, können in Richtung der Bewegung der Bodenreinigungsmaschine vor den ersten Schrubbürsten eine oder mehrere auf den zu reinigenden Boden gerichtete Feuchtigkeitsdüsen angeordnet sein.So that the rotatably driven scrubbing brushes rub off dirt loosened from the floor by moistening it with the liquid can be, one or more moisture nozzles directed towards the floor to be cleaned can be arranged in front of the first scrubbing brushes in the direction of the movement of the floor cleaning machine.

Um platzsparend über eine große Breite eine Schrubbürste anordnen zu können, können ein oder mehrere zweite Schrubbürsten quer zur Richtung der Bewegung der Bodenreinigungsmaschine hin- und herschwingend antreibbar sein.In order to be able to arrange a scrubbing brush in a space-saving manner over a large width, one or more second scrubbing brushes can be driven to swing back and forth transversely to the direction of movement of the floor cleaning machine.

Sind die ersten Schrubbürsten in Richtung der Bewegung der Bodenreinigungsmaschine zwar vor, aber seitlich außerhalb des von der zweiten Schrubbürste zu reinigendem Bereichs angeordnet, so können in Richtung der Bewegung der Bodenreinigungsmaschine hinter den ersten Schrubbürsten Feuchtigkeitsabzieher angeordnet sein, durch die Feuchtigkeit auf dem zu reinigenden Boden abstreifbar und in einen Bereich vor die quer zur Richtung der Bewegung der Bodenreinigungsmaschine hin- und herschwingenden Schrubbürsten leitbar ist.If the first scrubbing brushes in the direction of the movement of the floor cleaning machine are arranged in front of, but laterally outside the area to be cleaned by the second scrubbing brush, moisture extractors can be arranged behind the first scrubbing brushes in the direction of the movement of the floor cleaning machine, through the moisture on the floor to be cleaned can be wiped off and into an area in front of the scrubbing brushes swinging back and forth transversely to the direction of movement of the floor cleaning machine.

Dadurch wird die Flüssigkeit in Bewegungsrichtung hinter den ersten Schrubbürsten in einen Bereich geleitet, in dem dann eine Aufnahme der Feuchtigkeit erfolgen kann.As a result, the liquid is guided in the direction of movement behind the first scrubbing brushes into an area in which the moisture can then be absorbed.

Dabei weist zu einer guten Beseitigung der Feuchtigkeit vom Boden der Feuchtigkeitsabzieher vorzugsweise eine elastische Abstreifkante auf, durch die Feuchtigkeit auf dem zu reinigenden Boden abstreifbar ist.In this case, for good removal of moisture from the floor, the moisture extractor preferably has an elastic wiping edge through which moisture can be wiped off the floor to be cleaned.

Sind die Schrubbürsten senkrecht zu dem zu reinigenden Boden bewegbar und von einer Federkraft auf den zu reinigenden Boden zu kraftbeaufschlagbar, so wird auch fester an dem Boden anhaftender Schmutz vom Boden gelöst und damit ein erhöhter Reinigungseffekt erziehlt.If the scrubbing brushes can be moved perpendicular to the floor to be cleaned and can be acted upon by a spring force on the floor to be cleaned, then even dirt adhering to the floor is loosened from the floor and thus an increased cleaning effect is achieved.

Zur Aufnahme der Feuchtigkeit hinter der zweiten Schrubbürste kann die zweite Saugdüse sich parallel zur Bewegung der hin- und herschwingend antreibbaren zweite Schrubbürste erstrecken.To absorb the moisture behind the second scrubbing brush, the second suction nozzle can extend parallel to the movement of the second scrubbing brush that can be driven back and forth.

Dabei ist in einfacher Ausbildung die zweite Saugdüse eine Saugleiste, die sich über die Länge der zweiten Schrubbürste erstreckt, wobei die Saugleiste eine elastische Abstreifkante aufweisen kann, durch die Feuchtigkeit auf dem zu reinigenden Boden abstreifbar ist.In a simple design, the second suction nozzle is a suction strip that extends over the length of the second scrubbing brush, wherein the suction strip can have an elastic wiping edge through which moisture can be wiped off the floor to be cleaned.

Um ein Verkanten der Abstreifkante auf dem Boden zu vermeiden kann die Abstreifkante unter einem Winkel entgegen der Richtung der Bewegung der Bodenreinigungsmaschine geneigt sein.In order to avoid tilting the scraper edge on the floor, the scraper edge can be inclined at an angle counter to the direction of movement of the floor cleaning machine.

Das Fahrwerk der Bodenreinigungsmaschine kann zwei separat voneinander motorisch drehbar antreibbare Antriebsräder aufweisen, die in einem Abstand zueinander auf einer sich über die Mitte der Grundplatte erstreckenden Linie sich diametral gegenüberliegend angeordnet sein können. Eine Anordnung auf einer über die Mitte der Grundplatte sich erstreckenden Linie hat den Vorteil, daß sich die Bodenreinigungsmaschine auf der Stelle drehen kann.The chassis of the floor cleaning machine can have two drive wheels which can be driven separately from one another by a motor and which can be arranged diametrically opposite one another at a distance from one another on a line extending over the center of the base plate. An arrangement on a line extending over the center of the base plate has the advantage that the floor cleaning machine can rotate on the spot.

Dazu kann weiterhin in Richtung der Bewegung der Bodenreinigungsmaschine vor den Antriebsrädern eine Lenkrolle angeordnet sein, die um eine horizontale Drehachse frei drehbar und um eine Schwenkachse frei schwenkbar ist, wobei die Schwenkachse die Drehachse senkrecht kreuzt.For this purpose, a swivel castor can be arranged in front of the drive wheels in the direction of the movement of the floor cleaning machine, which is freely rotatable about a horizontal axis of rotation and freely pivotable about a pivot axis, the pivot axis perpendicularly crossing the axis of rotation.

Die Lenkrolle kann aber auch durch eine Kugel gebildet sein, die in einer zur Bodenseite hin offenen Kugelaufnahme frei beweglich geführt ist.However, the swivel castor can also be formed by a ball which is guided in a freely movable manner in a ball seat open towards the bottom.

Die Steuervorrichtung zur Steuerung der Bewegung der Bodenreinigungsmaschine kann durch mehrere Anschlagsensoren ansteuerbar sein, die auf der in Bewegungsrichtung der Bodenreinigungsmaschine vorderen Hälfte der Grundplatte am Umfang verteilt hervorstehend angeordnet sind und ein Signal erzeugen, wenn sie gegen einen Widerstand bewegt werden.The control device for controlling the movement of the floor cleaning machine can be controlled by several stop sensors, which are arranged protruding on the front half of the base plate in the direction of movement of the floor cleaning machine and which generate a signal when they are moved against a resistance.

Zur Reduzierung der Anzahl der erforderlichen Anschlagsensoren können die Anschlagsensoren von einer sich entlang der vorderen Hälfte der Grundplatte erstreckenden Stoßstange umschlossen sein, die in der Ebene der Grundplatte entgegen Federkräften zur Grundplatte hin Anschlagsensoren auslösend bewegbar beaufschlagbar ist.To reduce the number of stop sensors required, the stop sensors can be enclosed by a bumper extending along the front half of the base plate, which can be actuated in the plane of the base plate against spring forces towards the base plate so that it can be moved to trigger the stop sensors.

Dazu sind nur drei Anschlagsensoren erforderlich.Only three stop sensors are required for this.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben. Es zeigen

Figur 1
eine Untenansicht einer selbstfahrenden Bodenreinigungsmaschine
Figur 2
eine Draufsicht der Bodenreinigungsmaschine nach Figur 1
Figur 3
eine Vorderansicht der Bodenreinigungsmaschine nach Figur 1
Figur 4
eine erste Seitenansicht der Bodenreinigungsmaschine nach Figur 1
Figur 5
eine zweite Seitenansicht der Bodenreinigungsmaschine nach Figur 1
Figur 6
eine Rückansicht der Bodenreinigungsmaschine nach Figur 1
Figur 7
eine Seitenansicht der Bodenreinigungsmaschine nach Figur 1 im Bereich hin- und herschwingender Schrubbürsten.
An embodiment of the invention is shown in the drawing and is described in more detail below. Show it
Figure 1
a bottom view of a self-propelled floor cleaning machine
Figure 2
a top view of the floor cleaning machine according to Figure 1
Figure 3
a front view of the floor cleaning machine according to Figure 1
Figure 4
a first side view of the floor cleaning machine according to Figure 1
Figure 5
a second side view of the floor cleaning machine according to Figure 1
Figure 6
a rear view of the floor cleaning machine according to Figure 1
Figure 7
a side view of the floor cleaning machine according to Figure 1 in the area of swaying scrubbing brushes.

Die in den Figuren dargestellte Bodenreinigungsmaschine weist eine kreisrunde sich mit ihrer Ebene horizontal erstreckende Grundplatte 1 auf, die als Träger für die Komponenten der Bodenreinigungsmaschine dient und bei einem Reinigungsvorgang selbstfahrend sich in einem Abstand über einen zu reinigenden Boden 3 bewegt.The floor cleaning machine shown in the figures has a circular base plate 1 which extends horizontally with its plane, which serves as a carrier for the components of the floor cleaning machine and which moves automatically at a distance over a floor 3 to be cleaned during a cleaning process.

Dazu weist die Bodenreinigungsmaschine ein Fahrwerk auf, das zwei separat voneinander motorisch drehbar antreibbare Antriebsräder 2, 2' besitzt, die in einem Abstand zueinander auf einer sich über die Mitte der Grundplatte 1 erstreckenden Linie einander diametral gegenüberliegend jeweils im Randbereich der Grundplatte 1 angeordnet sind.For this purpose, the floor cleaning machine has a chassis which has two drive wheels 2, 2 'which can be driven separately by a motor and which are arranged at a distance from one another on a line extending across the center of the base plate 1, diametrically opposite one another in the edge region of the base plate 1.

Dazu kann weiterhin in Richtung der Bewegung 22 der Bodenreinigungsmaschine vor den Antriebsrädern 2, 2' eine Lenkrolle 4 angeordnet sein, die um eine horizontale Drehachse 5 frei drehbar und um eine Schwenkachse 6 frei schwenkbar ist, wobei die Schwenkachse 6 die Drehachse 5 senkrecht kreuzt.For this purpose, in the direction of movement 22 of the floor cleaning machine, a steering roller 4 can be arranged in front of the drive wheels 2, 2 ', which can be freely rotated about a horizontal axis of rotation 5 and freely pivotable about a pivot axis 6, the pivot axis 6 crossing the axis of rotation 5 perpendicularly.

Die Richtung der Bewegung 22 der Bodenreinigungsmaschine entspricht immer der Ausrichtung der Lenkrolle 4.The direction of the movement 22 of the floor cleaning machine always corresponds to the orientation of the steering roller 4.

Durch den separaten motorischen Antrieb der Antriebsräder 2 und 2' ist die Bodenreinigungsmaschine lenkbar.The floor cleaning machine can be steered by the separate motor drive of the drive wheels 2 and 2 '.

Auf der in Richtung der Bewegung 22 vorderen Hälfte der Grundplatte 1 sind vier drehbar antreibbare Kehrbürsten 7, 7' runden Querschnitts derart angeordnet, daß jeweils zwei äußere Kehrbürsten 7 mit ihrer Umlaufkontur über die radial umlaufende Kontur der Grundplatte 1 hinausragen. Sie sind in einander entgegengesetzter Drehrichtung angetrieben und fördern die auf dem Boden 3 befindlichen Schmutzpartikel zum mittleren Bereich der Grundplatte 3.On the front half of the base plate 1 in the direction of the movement 22, four rotatably drivable sweeping brushes 7, 7 'of round cross-section are arranged in such a way that two outer sweeping brushes 7 protrude with their circumferential contour over the radially circumferential contour of the base plate 1. They are driven in opposite directions of rotation and convey the dirt particles located on the floor 3 to the central area of the base plate 3.

Die Kehrbürsten 7' sind gegenüber den Kehrbürsten 7 entgegen der Richtung der Bewegung 22 der Bodenreinigungsmaschine sowie radial nach innen versetzt angeordnet und übernehmen die Schmutzpartikel von den Kehrbürsten 7 und befördern diese zusammen mit den Schmutzpartikeln aus dem von ihnen überdeckten Bereichen des Bodens 3 zur Mitte der Grundplatte 3. In der Mitte der Grundplatte 1 ist eine durch einen Partikelsaugmotor 19 unterdruckbeaufschlagte erste Saugdüse 8 angeordnet, durch die von den Kehrbürsten 7, 7' vom Boden 3 gekehrte und zur ersten Saugdüse 8 geförderte Schmutzpartikel aufgesaugt und in einen auf der Oberseite der Grundplatte 1 angeordneten Schmutzpartikelbehälter 9 weitergefördert werden.The sweeping brushes 7 'are arranged opposite the sweeping brushes 7 against the direction of movement 22 of the floor cleaning machine and offset radially inward and take over the dirt particles from the sweeping brushes 7 and convey them together with the dirt particles from the areas of the floor 3 they cover to the center of the Base plate 3. In the middle of base plate 1 there is arranged a first suction nozzle 8, which is subjected to negative pressure by a particle suction motor 19, through which the sweeping brushes 7, 7 'swept from the bottom 3 and to the first Suction nozzle 8 sucked up dirt particles conveyed and conveyed further into a dirt particle container 9 arranged on the upper side of the base plate 1.

Radial außerhalb der Antriebsräder 2,2' und hinter den Kehrbürsten 7 ist jeweils eine drehbar antreibbare erste Schrubbürste 10 runden Querschnitts angeordnet, deren Umlaufkontur bis zur radial umlaufenden Kontur der Grundplatte 1 reicht.A rotatably drivable first scrubbing brush 10 of round cross-section is arranged radially outside the drive wheels 2, 2 ′ and behind the sweeping brushes 7, the circumferential contour of which extends to the radially circumferential contour of the base plate 1.

In Richtung der Bewegung 22 der Bodenreinigungsmaschine den ersten Schrubbürsten 10 vorgelagert sind jeweils eine erste Feuchtigkeitsdüse 11 angeordnet, von der tropfenweise Wasser aus einem auf der Oberseite der Grundplatte 1 angeordneten Frischwasserbehälter 12 auf den Boden 3 ausgegeben wird. Von der Frischwasserpumpe 13 wird Wasser aus dem Frischwasserbehälter 12 angesaugt und zu en Feuchtigkeitsdüsen 11 und 17 gepumpt.In the direction of the movement 22 of the floor cleaning machine, a first moisture nozzle 11 is arranged upstream of the first scrubbing brushes 10, from which water is dispensed drop by drop from a fresh water container 12 arranged on the upper side of the base plate 1 onto the floor 3. The fresh water pump 13 draws in water from the fresh water container 12 and pumps it to the moisture nozzles 11 and 17.

Durch die ersten Schrubbürsten 10 wird an dem Boden 3 anhaftender und durch die Feuchtigkeitsdüsen 11 angefeuchteter Schmutz vom Boden gelöst und von in Richtung der Bewegung 22 der Bodenreinigungsmaschine den ersten Schrubbürsten 10 nachgelagerten ersten Feuchtigkeitsabziehern 14 zu einen inneren Bereich der Grundplatte 1 geleitet.Dirt adhering to the floor 3 and moistened by the moisture nozzles 11 is loosened from the floor by the first scrubbing brushes 10 and is conducted to an inner area of the base plate 1 by the first moisture extractors 14 downstream of the first scrubbing brushes 10 in the direction of the movement 22 of the floor cleaning machine.

Damit die Schrubbürsten 10 mit einem Anpressdruck auf dem Boden 3 aufliegen und so für ein gutes Lösen des Schmutzes vom Boden sorgen können, sind sie vertikal beweglich geführt und von ersten Druckfedern 27 gegen den Boden 3 kraftbeaufschlagt.So that the scrubbing brushes 10 rest on the floor 3 with a contact pressure and can thus ensure that the dirt is removed from the floor effectively, they are guided so that they can move vertically and are acted upon by first compression springs 27 against the floor 3.

Die als Abziehleisten ausgebildeten ersten Feuchtigkeitsabzieher 14 erstrecken sich von der radial umlaufenden Kontur der Grundplatte 1 zum inneren Bereich der Grundplatte 1 hin, wobei sie entgegen der Richtung der Bewegung 22 der Bodenreinigungsmaschine geneigt sind.The first moisture extractors 14, designed as peel strips, extend from the radially circumferential contour of the base plate 1 to the inner region of the base plate 1, whereby they are inclined against the direction of movement 22 of the floor cleaning machine.

Entgegen der Richtung der Bewegung 22 der Bodenreinigungsmaschine hinter den Antriebsrädern 2, 2' und den ersten Feuchtigkeitsabziehern 14 ist eine Schrubbürstenleiste 15 mit mehreren zweiten Schrubbürsten 16 angeordnet.A scrubbing brush strip 15 with a plurality of second scrubbing brushes 16 is arranged opposite to the direction of movement 22 of the floor cleaning machine behind the drive wheels 2, 2 ′ and the first moisture extractors 14.

Der Schrubbürstenleiste 15 in Richtung der Bewegung 22 der Bodenreinigungsmaschine vorgelagert sind zwei zweite Feuchtigkeitsdüsen 17 angeordnet, von denen tropfenweise Wasser aus dem auf der Oberseite der Grundplatte 1 angeordneten Frischwasserbehälter 12 auf den Boden 3 ausgegeben wird.Upstream of the scrubbing brush strip 15 in the direction of the movement 22 of the floor cleaning machine, two second moisture nozzles 17 are arranged, from which water is dispensed drop by drop from the fresh water container 12 arranged on the top of the base plate 1 onto the floor 3.

Dadurch wird der Boden 3 angefeuchtet und bei der Weiterbewegung der Bodenreinigungsmaschine durch die quer zur Richtung der Bewegung 22 der Bodenreinigungsmaschine hin- und herschwingend antreibbare Schrubbürstenleiste 15 mit den zweiten Schrubbürsten 16 an dem Boden 3 anhaftender und durch die Feuchtigkeitsdüsen 11 angefeuchteter Schmutz vom Boden 3 gelöst.As a result, the floor 3 is moistened and, as the floor cleaning machine moves further, dirt adhering to the floor 3 and moistened by the moisture nozzles 11 is released from the floor 3 by the scrubbing brush strip 15 with the second scrubbing brushes 16, which can be driven back and forth to the direction of movement 22 of the floor cleaning machine .

Der Bewegungsbereich der hin- und herschwingend antreibbaren Schrubbürstenleiste 15 erstreckt sich so weit, daß der von den ersten Feuchtigkeitsabziehern 14 zu dem inneren Bereich der Grundplatte 1 geleitete angefeuchtete Schmutz in den Bereich der Schrubbürstenleiste 15 gelangt.The range of motion of the scrubbing brush strip 15, which can be driven back and forth, extends so far that the moistened dirt conducted by the first moisture extractors 14 to the inner area of the base plate 1 reaches the area of the scrubbing brush strip 15.

Die Schrubbürstenleiste 15 ist an einer an der Unterseite der Grundplatte 1 angeordneten Linearführung 28 linear geführt, wobei der bewegliche Teil 29 der Linearführung 28 von einem drehbar angetriebenen Excenter 30 linear bewegbar hin- und herschwingend angetrieben wird.The scrubbing brush strip 15 is linearly guided on a linear guide 28 arranged on the underside of the base plate 1, the movable part 29 of the linear guide 28 being driven to oscillate linearly back and forth by a rotatably driven eccentric 30.

An dem beweglichen Teil 29 ist ein die zweiten Schrubbürsten 16 der Schrubbürstenleiste 15 tragender Bürstenträger 36 vertikal beweglich angeordnet. Durch an dem beweglichen Teil 29 abgestützte zweite Druckfedern 37 ist der Bürstenträger 36 und mit ihm die zweiten Schrubbürsten 16 mit einer bestimmten Kraft zum Boden 3 hin beaufschlagt, um so für ein gutes Lösen des Schmutzes vom Boden 3 sorgen zu können.On the movable part 29, a brush holder 36 carrying the second scrubbing brushes 16 of the scrubbing brush strip 15 is arranged so as to be vertically movable. The brush holder 36 and with it the second scrubbing brushes 16 are supported by the second compression springs 37 supported on the movable part 29 applied with a certain force towards the floor 3 in order to ensure that the dirt is removed from the floor 3 well.

Der Drehantrieb des Excenters 30 erfolgt über eine erste Riemenscheibe 31 und einen nicht dargestellten Antriebsriemen von einer zweiten Riemenscheibe 35 eines auf der Oberseite der Grundplatte 1 angeordneten Antriebsmotors 33.The rotary drive of the eccentric 30 takes place via a first belt pulley 31 and a drive belt (not shown) from a second belt pulley 35 of a drive motor 33 arranged on the upper side of the base plate 1.

Dieser Antriebsmotor 33 treibt über dritte Riemenscheiben 41 und nicht dargestellte zweite Antriebsriemen sowie vierte Riemenscheiben 42 der ersten Schrubbürsten 10 auch die ersten Schrubbürsten 10 drehbar an.This drive motor 33 also drives the first scrubbing brushes 10 in a rotatable manner via third pulleys 41 and second drive belts (not shown) and fourth pulleys 42 of the first scrubbing brushes 10.

In Richtung der Bewegung 22 der Bodenreinigungsmaschine hinter der Schrubbürstenleiste 15 ist eine Saugleiste 18 parallel zur Schrubbürstenleiste 15 angeordnet, die sich über den Bewegungsbereich der hin- und herschwingenden Schrubbürstenleiste 15 erstreckt.In the direction of the movement 22 of the floor cleaning machine behind the scrubbing brush strip 15, a suction strip 18 is arranged parallel to the scrubbing brush strip 15, which extends over the range of motion of the scrubbing brush strip 15 swinging back and forth.

Die Saugleiste 18 ist von einem Schmutzwassersaugmotor 20 unterdruckbeaufschlagt. Das von der Saugleiste 18 aufgesaugte Schmutzwasser gelangt zunächst in einen kleinen zweiten Schmutzwasserbehälter 38 und wird von dort von einer Pumpe 39 über einen Schlauch 40 zu dem Schmutzwasserbehälter 21 gefördert.The suction bar 18 is subjected to negative pressure by a dirty water suction motor 20. The dirty water sucked up by the squeegee 18 first reaches a small second dirty water container 38 and is conveyed from there by a pump 39 via a hose 40 to the dirty water container 21.

Die Saugleiste 18 weist an ihrem der Richtung der Bewegung 22 entgegengesetzten Endbereich über ihre Länge sich erstreckend eine Abstreifkannte 23 aus einem elastischen Werkstoff auf, die das auf dem Boden 3 befindliche Schmutzwasser vom Boden 3 abstreift, so daß es von der Saugleiste 18 aufgesaugt werden kann.The squeegee 18 has at its end region opposite to the direction of movement 22 extending over its length a stripping edge 23 made of an elastic material, which wipes the dirty water on the floor 3 from the floor 3 so that it can be sucked up by the squeegee 18 .

Die Antriebsmotoren 24, 24' der Antriebsräder 2, 2' sind von einer nicht dargestellten Steuervorrichtung der Bewegung der Bodenreinigungsmaschine ansteuerbar. Dazu erhält die Steuerung Steuersignale von drei Anschlagsensoren 25, die auf der in Bewegungsrichtung 22 der Bodenreinigungsmaschine vorderen Hälfte der Grundplatte 1 am Umfang verteilt hervorstehend angeordnet sind und ein Steuersignal erzeugen, wenn sie gegen einen Widerstand wie z.B. eine Wand bewegt werden.The drive motors 24, 24 'of the drive wheels 2, 2' can be controlled by a control device, not shown, of the movement of the floor cleaning machine. For this purpose, the control receives control signals from three stop sensors 25, which are arranged protruding on the front half of the base plate 1 in the direction of movement 22 of the floor cleaning machine, and which project a control signal when they are moved against a resistance such as a wall.

Die Anschlagsensoren 25 sind von einer sich entlang der vorderen Hälfte der Grundplatte 1 erstreckenden Stoßstange 26 umschlossen sein, die bei Fahren der Bodenreinigungsmaschine gegen den Widerstand in der Ebene der Grundplatte 1 entgegen Federkräften zur Grundplatte 1 hin die Anschlagsensoren 25 auslösend bewegbar beaufschlagbar ist.The stop sensors 25 are enclosed by a bumper 26 extending along the front half of the base plate 1, which can be actuated to trigger the stop sensors 25 against the resistance in the plane of the base plate 1 against spring forces towards the base plate 1 when the floor cleaning machine is moving.

BezugszeichenlisteList of reference symbols

11
GrundplatteBase plate
22
Antriebsraddrive wheel
2'2 '
Antriebsraddrive wheel
33
Bodenground
44th
LenkrolleSwivel castor
55
horizontale Drehachsehorizontal axis of rotation
66th
SchwenkachseSwivel axis
77th
KehrbürstenSweeping brushes
7'7 '
KehrbürstenSweeping brushes
88th
erste Saugdüsefirst suction nozzle
99
SchmutzpartikelbehälterDirt particle container
1010
erste Schrubbürstefirst scrubbing brush
1111
erste Feuchtigkeitsdüsefirst moisture nozzle
1212th
FrischwasserbehälterFresh water tank
1313th
FrischwasserpumpeFresh water pump
1414th
FeuchtigkeitsabzieherMoisture extractor
1515th
SchrubbürstenleisteScrubbing brush strip
1616
zweite Schrubbürstensecond scrubbing brushes
1717th
zweite Feuchtigkeitsdüsensecond moisture nozzles
1818th
SaugleisteSqueegee
1919th
PartikelsaugmotorParticle suction engine
2020th
SchmutzwassersaugmotorDirty water suction motor
2121
SchmutzwasserbehälterDirty water tank
2222nd
Richtung der BewegungDirection of movement
2323
AbstreifkanteWiper edge
2424
AntriebsmotorDrive motor
24'24 '
AntriebsmotorDrive motor
2525th
AnschlagsensorenStop sensors
2626th
Stoßstangebumper
2727
erste Druckfedernfirst compression springs
2828
LinearführungLinear guide
2929
bewegbarer Teilmovable part
3030th
ExcenterEccentric
3131
erste Riemenscheibefirst pulley
3333
AntriebsmotorDrive motor
3535
zweite Riemenscheibensecond pulleys
3636
BürstenträgerBrush holder
3737
zweite Druckfedernsecond compression springs
3838
zweiter Schmutzwasserbehältersecond dirty water tank
3939
Pumpepump
4040
Schlauchtube
4141
dritte Riemenscheibethird pulley
4242
vierte Riemenscheibefourth pulley

Claims (12)

  1. Self-driving floor cleaning machine, having a running gear which drives the floor cleaning machine so as to be mobile, and at least one drive wheel (2, 2') which is able to be driven in a rotating direction, as well as a control device for controlling the movement of the floor cleaning machine, having a plurality of rotatably driven sweeping brushes (7, 7') by way of which dirt particles situated on the floor (3) to be cleaned are able to be conveyed to a first suction nozzle (8) which suctions the dirt particles, wherein one or a plurality of moisture nozzles (11), which is/are directed onto the floor (3) to be cleaned, in the direction of movement (22) of the floor cleaning machine is/are disposed behind the sweeping brushes (7, 7'), and one or a plurality of scrubbing brushes (10), which is/are able to be movably driven, in the direction of movement (22) of the floor cleaning machine is/are disposed behind the moisture nozzles (11), characterized in that one or a plurality of second suction nozzles (16), which by way of the suction opening thereof is/are directed towards the floor (3), is/are disposed on those sides of the scrubbing brushes (10) that face away from the moisture nozzles (11, 17).
  2. Self-driving floor cleaning machine according to Claim 1, characterized in that one or a plurality of first scrubbing brushes (10) is/are able to be rotatably driven.
  3. Self-driving floor cleaning machine according to Claim 2, characterized in that the in each case one or a plurality of first scrubbing brushes (10) which is/are able to be rotatably driven is/are disposed in mutually opposite peripheral regions of the floor cleaning machine.
  4. Self-driving floor cleaning machine according to Claim 3, characterized in that one or a plurality of moisture nozzles (11), which are directed onto the floor (3) to be cleaned, in the direction of movement (22) of the floor cleaning machine is/are disposed in front of the first scrubbing brushes (10).
  5. Self-driving floor cleaning machine according to one of the preceding claims, characterized in that one or a plurality of second scrubbing brushes (16) is/are able to be driven so as to oscillate in a reciprocating manner transversely to the direction of movement (22) of the floor cleaning machine.
  6. Self-driving floor cleaning machine according to Claims 4 and 5, characterized in that moisture squeegees (14), by way of which the moisture is able to be wiped on the floor (3) to be cleaned and able to be directed into a region in front of the second scrubbing brushes (16) which oscillate in a reciprocating manner transversely to the direction of movement (22) of the floor cleaning machine, in the direction of movement (22) of the floor cleaning machine are disposed behind the first scrubbing brushes (10).
  7. Self-driving floor cleaning machine according to Claim 6, characterized in that the moisture squeegee (14) has an elastic wiping edge by way of which the moisture is able to be wiped on the floor (3) to be cleaned.
  8. Self-driving floor cleaning machine according to one of the preceding claims, characterized in that the scrubbing brushes (10, 16) are able to be moved perpendicularly to the floor (3) to be cleaned, and able to be impinged with a force acting towards the floor (3) to be cleaned by way of a spring force.
  9. Self-driving floor cleaning machine according to one of preceding Claims 5 to 8, characterized in that the second suction nozzle extends so as to be parallel to the movement of the second scrubbing brushes (16) which are able to be driven so as oscillate in a reciprocating manner.
  10. Self-driving floor cleaning machine according to Claim 9, characterized in that the second suction nozzle is a suction strip (18) which extends across the length of the second scrubbing brushes (16).
  11. Self-driving floor cleaning machine according to Claim 10, characterized in that the suction strip (18) has an elastic wiping edge (23) by way of which moisture is able to be wiped on the floor (3) to be cleaned.
  12. Self-driving floor cleaning machine according to one of preceding Claims 7 and/or 11, characterized in that the wiping edge (23) is inclined at an angle counter to the direction of movement (22) of the floor cleaning machine.
EP20177509.5A 2019-06-14 2020-05-29 Self-cleaning floor cleaning machine Active EP3750465B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019116294.7A DE102019116294A1 (en) 2019-06-14 2019-06-14 Self-cleaning floor cleaning machine

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Publication Number Publication Date
EP3750465A1 EP3750465A1 (en) 2020-12-16
EP3750465B1 true EP3750465B1 (en) 2021-07-07

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EP20177509.5A Active EP3750465B1 (en) 2019-06-14 2020-05-29 Self-cleaning floor cleaning machine

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EP (1) EP3750465B1 (en)
DE (1) DE102019116294A1 (en)
ES (1) ES2885776T3 (en)

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Publication number Priority date Publication date Assignee Title
CN114158982A (en) * 2021-12-07 2022-03-11 添可智能科技有限公司 Cleaning method and cleaning apparatus

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* Cited by examiner, † Cited by third party
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DE10357637A1 (en) * 2003-12-10 2005-07-07 Vorwerk & Co. Interholding Gmbh Self-propelled or traveling sweeper and combination of a sweeper with a base station
DE102014105460A1 (en) * 2014-04-16 2015-10-22 Vorwerk & Co. Interholding Gmbh Self-propelled floor cleaning device with a follower tool following a leader vehicle
DE102015101587B3 (en) * 2014-05-30 2015-07-09 Wessel-Werk Gmbh Robotsauger with multiple arrangement of side brushes
US9968234B2 (en) * 2016-06-15 2018-05-15 Hobot Technology Inc. Automatic cleaning machine
DE102017111847A1 (en) * 2017-05-30 2018-12-06 Hako Gmbh Floor cleaning machine with brush pressure adjustment

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EP3750465A1 (en) 2020-12-16
ES2885776T3 (en) 2021-12-15

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