EP3750465B1 - Machine de nettoyage du sol autonettoyante - Google Patents

Machine de nettoyage du sol autonettoyante 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
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
EP20177509.5A
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German (de)
English (en)
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EP3750465A1 (fr
Inventor
Norbert Werner
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Individual
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Individual
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Publication of EP3750465A1 publication Critical patent/EP3750465A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—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.

Landscapes

  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (12)

  1. Machine de nettoyage de sol automotrice comprenant un châssis, qui entraîne en mouvement la machine de nettoyage de sol et au moins une roue d'entraînement (2, 2') pouvant être entraînée dans une direction de rotation, ainsi qu'un dispositif de commande pour la commande du mouvement de la machine de nettoyage de sol, comprenant plusieurs brosses de balayage entraînées en rotation (7, 7'), grâce auxquelles des particules de salissure se trouvant sur le sol à nettoyer (3) peuvent être transportées jusqu'à une première buse d'aspiration (8) aspirant les particules de salissure, une ou plusieurs buses d'humidité (11) orientées vers le sol à nettoyer (3) étant agencées après les brosses de balayage (7, 7') dans la direction du mouvement (22) de la machine de nettoyage de sol et une ou plusieurs brosses de récurage entraînées en mouvement (10) étant agencées après les buses d'humidité (11) dans la direction du mouvement (22) de la machine de nettoyage de sol, caractérisée en ce qu'une ou plusieurs deuxièmes buses d'aspiration (16) orientées avec leur ouverture d'aspiration vers le sol (3) sont agencées sur les côtés, détournés des buses d'humidité (11, 17), des brosses de récurage (10).
  2. Machine de nettoyage de sol automotrice selon la revendication 1, caractérisée en ce qu'une ou plusieurs premières brosses de récurage (10) peuvent être entraînées en rotation.
  3. Machine de nettoyage de sol automotrice selon la revendication 2, caractérisée en ce que les une ou plusieurs premières brosses de récurage pouvant être entraînées en rotation (10) sont agencées dans des zones de bord en vis-à-vis de la machine de nettoyage de sol.
  4. Machine de nettoyage de sol automotrice selon la revendication 3, caractérisée en ce qu'une ou plusieurs buses d'humidité (11) orientées vers le sol à nettoyer (3) sont agencées avant les premières brosses de récurage (10) dans la direction du mouvement (22) de la machine de nettoyage de sol.
  5. Machine de nettoyage de sol automotrice selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une ou plusieurs deuxièmes brosses de récurage (16) peuvent être entraînées en basculement en va-et-vient transversalement à la direction du mouvement (22) de la machine de nettoyage de sol.
  6. Machine de nettoyage de sol automotrice selon les revendications 4 et 5, caractérisée en ce que des extracteurs d'humidité (14) sont agencés après les premières brosses de récurage (10) dans la direction du mouvement (22) de la machine de nettoyage de sol, grâce auxquels de l'humidité peut être raclée sur sol à nettoyer (3) et peut être conduite dans une zone avant les deuxièmes brosses de récurage (16) en basculement en va-et-vient transversalement à la direction du mouvement (22) de la machine de nettoyage de sol.
  7. Machine de nettoyage de sol automotrice selon la revendication 6, caractérisée en ce que l'extracteur d'humidité (14) comprend un bord de raclage élastique, grâce auquel de l'humidité peut être raclée sur le sol à nettoyer (3).
  8. Machine de nettoyage de sol automotrice selon l'une quelconque des revendications précédentes, caractérisée en ce que les brosses de récurage (10, 16) sont en mouvement perpendiculairement au sol à nettoyer (3) et peuvent être sollicités en force par une force de ressort sur le sol à nettoyer (3).
  9. Machine de nettoyage de sol automotrice selon l'une quelconque des revendications 5 à 8 précédentes, caractérisée en ce que la deuxième buse d'aspiration s'étend en parallèle au mouvement des deuxièmes brosses de récurage (16) pouvant être entraînées en basculement en va-et-vient.
  10. Machine de nettoyage de sol automotrice selon la revendication 9, caractérisée en ce que la deuxième buse d'aspiration est une baguette d'aspiration (18), qui s'étend sur la longueur des deuxièmes brosses de récurage (16).
  11. Machine de nettoyage de sol automotrice selon la revendication 10, caractérisée en ce que la baguette d'aspiration (18) comprend un bord de raclage élastique (23), grâce auquel de l'humidité peut être raclée sur le sol à nettoyer (3).
  12. Machine de nettoyage de sol automotrice selon l'une quelconque des revendications 7 et/ou 11 précédentes, caractérisée en ce que le bord de raclage (23) est incliné à un angle à l'encontre de la direction du mouvement (22) de la machine de nettoyage de sol.
EP20177509.5A 2019-06-14 2020-05-29 Machine de nettoyage du sol autonettoyante Active EP3750465B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019116294.7A DE102019116294A1 (de) 2019-06-14 2019-06-14 Selbstreinigende Bodenreinigungsmaschine

Publications (2)

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

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20177509.5A Active EP3750465B1 (fr) 2019-06-14 2020-05-29 Machine de nettoyage du sol autonettoyante

Country Status (3)

Country Link
EP (1) EP3750465B1 (fr)
DE (1) DE102019116294A1 (fr)
ES (1) ES2885776T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113633229B (zh) * 2021-07-23 2024-09-03 宁波富佳实业股份有限公司 一种清洁装置、洗地机和扫地机
CN114158982A (zh) * 2021-12-07 2022-03-11 添可智能科技有限公司 清洁方法和清洁设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357637A1 (de) * 2003-12-10 2005-07-07 Vorwerk & Co. Interholding Gmbh Selbstfahrendes oder zu verfahrendes Kehrgerät sowie Kombination eines Kehrgeräts mit einer Basisstation
DE102014105460A1 (de) * 2014-04-16 2015-10-22 Vorwerk & Co. Interholding Gmbh Selbstfahrendes Bodenreinigungsgerät mit einem einem Führungsfahrzeug folgenden Folgewerkzeug
DE102015101587B3 (de) * 2014-05-30 2015-07-09 Wessel-Werk Gmbh Robotsauger mit Mehrfachanordnung von Seitenbürsten
US9968234B2 (en) * 2016-06-15 2018-05-15 Hobot Technology Inc. Automatic cleaning machine
DE102017111847A1 (de) * 2017-05-30 2018-12-06 Hako Gmbh Bodenreinigungsmaschine mit Bürstenandruckverstellung

Also Published As

Publication number Publication date
ES2885776T3 (es) 2021-12-15
EP3750465A1 (fr) 2020-12-16
DE102019116294A1 (de) 2020-12-17

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