EP3310235B1 - Cleaning tool having an impact on the surface to be cleaned - Google Patents

Cleaning tool having an impact on the surface to be cleaned Download PDF

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Publication number
EP3310235B1
EP3310235B1 EP16727983.5A EP16727983A EP3310235B1 EP 3310235 B1 EP3310235 B1 EP 3310235B1 EP 16727983 A EP16727983 A EP 16727983A EP 3310235 B1 EP3310235 B1 EP 3310235B1
Authority
EP
European Patent Office
Prior art keywords
roller part
roller
cleaning
endless
cleaning device
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
EP16727983.5A
Other languages
German (de)
French (fr)
Other versions
EP3310235A1 (en
Inventor
Matthias Pfeiffer
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 EP3310235A1 publication Critical patent/EP3310235A1/en
Application granted granted Critical
Publication of EP3310235B1 publication Critical patent/EP3310235B1/en
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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
    • A47L11/40—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
    • A47L11/4047—Wound-up or endless cleaning belts
    • 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
    • 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
    • A47L11/26—Floor-scrubbing machines, hand-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
    • A47L11/28—Floor-scrubbing 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
    • A47L11/28—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
    • A47L11/40—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

Definitions

  • the invention relates to a cleaning device, in particular a floor cleaning device, with a cleaning device which is at least partially covered with an endless cleaning element which, during action on a surface to be cleaned, can be rotated continuously relative to the surface to be cleaned, the cleaning device at least one towards the has a first roller part and a second roller part, wherein a radius of curvature of a roller portion of the first roller part is different from a radius of curvature of a roller portion of the second roller part.
  • Cleaning devices of the aforementioned type are known in the prior art. These can be, for example, wet cleaning devices which have a moistenable cleaning roller as the cleaning device.
  • the cleaning device can in principle be designed as a device guided by a user, or as an automatically movable cleaning robot.
  • the publication DE 20 2007 004 878 U1 discloses for example a cleaning device for damp wiping floor coverings.
  • the cleaning device has a cloth roll which has a hollow body which can be moistened from the inside and which is covered with a velor or microfiber fleece as an endless cleaning element.
  • This endless cleaning element is formed over the entire circumference of the rag roller, rotation of the rag roller relative to the floor covering to be cleaned simultaneously rotating the endless cleaning element.
  • the cleaning device To clean the rag roll of dirt absorbed when it acts on the floor surface, the cleaning device has a spinning function for self-cleaning the rag roll, in which the outer roll is rinsed and spun off with the supply of liquid.
  • the disadvantage here is that the regeneration of the endless cleaning element, i. H. throwing off the dirty liquid during a regeneration process that is separate from the wiping process. It is therefore necessary for a regeneration of the endless cleaning element to stop the wiping process and to carry out a regeneration process, which may require an additional motor or a gear to provide a high speed of the cleaning device during the regeneration process.
  • cleaning devices are known from the prior art which have a first roller part which can be placed on the surface to be cleaned and a second roller part, the radii of curvature of the roller parts being different.
  • the EP 2436296 A a sweeper with a dehumidifier from a rotating wipe, which is driven by an electric motor in a vertical plane around pulleys.
  • the publication US 1798327 A discloses a scrubber with a scrubbing element which has an endless wipe which is deflected over rollers.
  • US 2953798 A a surface processing device with an endless cleaning cloth, which can be rotated continuously around a cleaning roller relative to a surface to be cleaned, the cleaning cloth being further deflected via guide rollers with a smaller radius of curvature.
  • the invention proposes a cleaning device in which at least one roller part is arranged in a rotationally fixed manner within the cleaning device.
  • At least one roller part is arranged in a rotationally fixed manner within the cleaning device.
  • the endless cleaning element is pulled over the roller part in the region of this rotationally fixed roller part, so that there is friction between the endless cleaning element and the roller part.
  • This friction can optionally be used for the additional regeneration of the endless cleaning element.
  • one roller part of the cleaning device is designed to be rotationally fixed and another roller part is designed to be rotatable.
  • all roller parts i.e. H. two or more roller parts of the cleaning device, be rotationally fixed, the endless cleaning element being drawn around the roller parts by means of an additional drive device, so that the endless cleaning element can act on the surface to be cleaned.
  • a cleaning device is created with two or more roller parts which have radii of curvature that differ from one another, so that when the roller parts rotate, different centrifugal forces act on the dirty liquid in the region of these radii of curvature due to the different radii of curvature.
  • different areas of one and the same roll can be understood as the first roll part and the second roll part, or alternatively two separate roll parts, which are connected by means of the endless cleaning element.
  • only one of the roller parts can be placed on the surface to be cleaned, so that during an action of the endless cleaning element on the surface to be cleaned there is only contact between, for example, the first roller part and the surface, while the second roller part does not touch the surface to be cleaned.
  • the first roller part serves to act on the surface to be cleaned by means of the endless cleaning element contacting the surface
  • the second roller part serves to regenerate the endless cleaning element. Since the continuous cleaning element is an element continuously rotating around the two roller parts, such as an endless wiping cloth, regeneration of a second partial area of the continuous cleaning element on the second roller part can take place at the same time as a first partial area of the continuous cleaning element acts on the surface to be cleaned , In contrast to the prior art, it is therefore not necessary to interrupt the action on the surface to be cleaned, ie the cleaning process, for a regeneration operation. Rather, action (wiping) and regeneration can take place simultaneously.
  • the dirty liquid is thrown off in the region of the second roller part via the different dimensioning of the radii of curvature of the first and second roller parts, the radius of curvature of the second roller part being less than the radius of curvature of the first roller part, so that a greater centrifugal force is exerted in the region of the second roller part the dirty liquid acts as in the area of the first roller part.
  • At least one roller part is advantageously arranged rotatably within the cleaning device.
  • the endless cleaning element rolls on the circumference of the roller part when the cleaning device rotates. This simplifies the friction-reduced conveying of the endless cleaning element from the first roller part to the second roller part, and back, so that each section of the endless cleaning element can repeatedly pick up dirt and release dirt.
  • the roller part can either be driven actively by means of an electric motor or can be moved passively as a result of a movement of the endless cleaning element. In the latter case, the endless cleaning element is moved by an electric motor assigned to the other roller part or by an electric motor designed separately from the roller parts.
  • a first roller part is advantageously actively driven, while a second roller part also rotates passively as a result of the rotation of the endless cleaning element.
  • the cleaning device is designed as a traction drive, the roller parts being spaced-apart shafts which are connected to one another in a torque-transmitting manner by means of the endless cleaning element.
  • the cleaning device is thus designed like a traction mechanism drive, the torque of an actively driven roller part being transferred to another roller part of the cleaning device, which then also rotates passively.
  • the torque is transmitted through the endless cleaning element, which is placed over the circumferential surfaces of the roller parts, so that both roller parts are located within the area delimited by the endless cleaning element.
  • This embodiment particularly advantageously combines the drive of a second roller part by means of a first roller part and at the same time the absorption of dirt or dirty liquid in the region of the first roller part and the centrifuging of the dirty liquid in the region of the second roller part, or vice versa. It is therefore a continuous regeneration operation with simultaneous action possible on the surface to be cleaned during a normal work process. Since, according to the invention, the traction mechanism drive has two roller parts of different sizes as shafts, the centrifugal force on the larger, first roller part is lower than on the second, smaller roller part.
  • the speed of the cleaning device and thus also the speed of the endless cleaning element can be selected so that no liquid is thrown off in the area of the first roller part, which acts on the surface to be cleaned, while in the area of the second, smaller roller part a greater centrifugal force attacks the dirty liquid so that it is thrown off by the endless cleaning element.
  • the roller parts are connected to one another in a rotationally fixed manner, in particular in one piece.
  • the roller parts are connected to one another directly and not only via the endless cleaning element.
  • the roller parts are partial areas of one and the same roller. This roller is designed so that the individual areas, ie. H. the roller parts have radii of curvature different from one another in order to ensure the change in the centrifugal force on the different roller parts.
  • the roller parts are rotationally fixed to one another, the endless cleaning element being moved relative to the one-part roller.
  • the endless cleaning element reaches the different roller parts with different radii of curvature, so that the centrifugal force acting on the dirty liquid in the region of the second roller part (with a smaller radius of curvature) leads to the dirty liquid being thrown off.
  • the endless cleaning element can be displaced relative to the cleaning device, in particular by means of at least a motor-driven roller part is conveyable.
  • the endless cleaning element can be displaced independently of a movement of the roller parts, so that the endless cleaning element can also be conveyed when the roller parts are arranged in a rotationally fixed manner within the cleaning device.
  • one of the roller parts is particularly advantageously motor-driven.
  • the endless cleaning element be tensioned around the roller parts, the cleaning device in particular having a tensioning device which exerts a spring force on the endless cleaning element.
  • a torque transmission can take place between the roller parts.
  • the endless cleaning element also consists in most cases of a flexible material, for example a fleece or the like, it is advantageous to continuously exert a spring force on the endless cleaning element.
  • the cleaning device thus advantageously has a tensioning device which exerts this spring force on the endless cleaning element.
  • the clamping device can be assigned to a roller part, for example, in that the axis of rotation of the roller part can be displaced such that the endless cleaning element is always under tension.
  • the radius of curvature of the first roller part is two to twenty times, in particular ten to fifteen times, as large as the radius of curvature of the second roller part.
  • the ratio of the radii of curvature to one another allows the ratio of the centrifugal forces acting on the respective roller parts to be set, which at the same time causes the adhering or centrifuging of dirty liquid in the region of the respective roller parts.
  • the curvature radius ratios of 10: 1 to 15: 1 which have been shown to be particularly advantageous have proven to be particularly advantageous in practice.
  • the roller part be round or drop-shaped.
  • a roller part of the cleaning device can be circular with respect to the cross section, while a second roller part is drop-shaped and thus changes the radius of curvature along its circumference.
  • the drop-shaped second roller part can have a radius of curvature with respect to one of its roller partial regions, which corresponds to the radius of curvature of the first roller part, while another roller partial region of the drop-shaped second roller part has a radius of curvature which is less than the radius of curvature of the first roller part.
  • dirty liquid is thrown off in the tapered area of the drop shape, which has the smaller radius of curvature.
  • the cleaning device is advantageously designed in such a way that the endless cleaning element, regardless of the current orientation of the drop shape, always lies tightly against the roller parts, so that rotation of the endless cleaning element is possible.
  • a difference in length of the Scope may be compensated for by means of the previously explained clamping device.
  • the second roller part have at least one action element mechanically acting on the endless cleaning element for cleaning the endless cleaning element.
  • the mechanical action element serves to support the regeneration of the endless cleaning element on the second roller part.
  • the action element is advantageously arranged on the circumference of the second roller part, so that it acts on the endless cleaning element when the endless cleaning element is displaced relative to the second roller part.
  • the action element can be a nub structure of the surface of the second roller part or the like.
  • a cleaning device 1 in the form of a wet cleaning device for wet cleaning a surface to be cleaned has a front attachment 9 which is in contact with the surface to be cleaned during a cleaning process.
  • the attachment 9 has a cleaning device 2 which has two roller parts 4, 5 which are formed separately from one another and an endless cleaning element 3 which is in the form of an endless wipe.
  • the endless cleaning element 3 is placed around the two roller parts 4, 5, so that when the roller parts 4, 5 rotate, it can circulate around an axis of rotation x from the first roller part 4 to the second roller part 5 and back.
  • the cleaning device 1 is supported on the surface to be cleaned via the first roller part 4.
  • the second roller part 5 is not in contact with the surface to be cleaned, but is offset within the attachment 9 so that contact is not possible.
  • the roller parts 4, 5 extend transversely to a usual direction of travel r of the cleaning device 1, which results from the usual working movement of a user of the cleaning device 1, namely generally alternately back and forth, this possibly further with a slight dodging into a nearby cleaning path.
  • the roller parts 4, 5 extend approximately over the entire width of the cleaning device 1, which is transverse to the direction of travel r arranged. At least one of the roller parts 4, 5 can be driven by an electric motor, ie rotatable about its axis of rotation x.
  • the attachment 9 has a tank for storing liquid for cleaning the surface to be cleaned.
  • the liquid can be filled into the tank of the attachment 9 via a filler neck 10.
  • the endless cleaning element 3 can be moistened with the liquid either from the inside by at least one roller part 4, 5, or by spraying the liquid onto the roller part 4, 5 from the outside.
  • the cleaning device 2 is not actively driven during a normal travel process of the cleaning device 1 without machining a surface to be cleaned. Rather, solely due to the frictional engagement with the surface to be cleaned, there is a passive rotation of the roller parts 4, 5, which, however, does not cause a centrifugal force which is sufficiently large for the dirty liquid to be thrown off.
  • a cleaning process of the surface by means of the first roller part 4 at least one of the roller parts 4, 5 is actively driven by means of the electric motor.
  • a wiping edge is established along the line of contact between the first roller part 4 and the surface to be cleaned. This wiping edge takes over the cleaning of the surface by the movement of the wiping edge relative to the surface, whereby dirt is loosened and conveyed onto the endless cleaning element 3 in the area of the first roller part 4.
  • FIG 2 shows a detailed view of the first roller part 4 of the cleaning device 2.
  • the first roller part 4 is shown explosively with regard to its various jackets.
  • the first roller part 4 is basically designed as a cylindrical hollow body closed on the end face, the front end closure not being shown for better illustration is.
  • the first roller part 4 can also be designed as a solid body.
  • the first roller part 4 is surrounded by a sponge body 11 arranged in a rotationally fixed manner thereon.
  • the sponge body 11 is open-pored and has the ability to temporarily store liquid.
  • the sponge body 11 is at least partially covered by the endless cleaning element 3, which connects the first roller part 4 to the second roller part 5.
  • the endless cleaning element 3 is designed here as a microfiber cloth.
  • this is rotatably arranged within the cleaning device 2, so that the portion of the endless cleaning element 3 which is in contact with the sponge body 11 changes in a circulating manner.
  • the cleaning device 2 releases liquid onto the surface to be cleaned under pressure, which is caused by a displacement of the cleaning device 1 on the surface to be cleaned. This results in an escape of liquid in the area of the wiping edge of the first roller part 4.
  • the liquid is squeezed out of the sponge body 11 and / or the endless cleaning element 3 and applied to the surface to be cleaned.
  • dirt is loosened from the surface to be cleaned and transferred to the endless cleaning element 3.
  • FIG 3 shows a first embodiment of a cleaning device 2 according to the invention.
  • the cleaning device 2 has a first roller part 4 and a second roller part 5.
  • Both roller parts 4, 5 are designed as cylindrical roller parts 4, 5, which have a radius of curvature r 1 , r 2 that is constant over their circumference.
  • the first roller part 4 has a radius of curvature r 1 which is the same size in all the roller part regions 6.
  • the second roller part 5 likewise has an equally large radius of curvature r 2 in all the roller part regions 7.
  • the radius of curvature r 1 des the first roller part 4 is approximately three times as large as the radius of curvature r 2 of the second roller part 5.
  • Both the first roller part 4 and the second roller part 5 are rotatably mounted about their respective axis of rotation x.
  • the endless cleaning element 3 is placed over the roller partial areas 6, 7 of the roller parts 4, 5, the cleaning device 2 overall forming a traction mechanism drive in which the first roller part 4 can be actively driven by means of an electric motor and the second roller part 5 by the torque transmission from the first roller part 4 passively rotates on the second roller part 5.
  • the endless cleaning element 3 is displaced relative to the cleaning device 2, so that when the cleaning device 2 acts on the surface to be cleaned, another roller part region 6 of the first roller part 4 is always on the surface to be cleaned.
  • a corresponding housing part within the cleaning device 1 is advantageously provided for collecting the thrown off dirty liquid, so that the user does not come into contact with the dirty liquid reaches and also no dirty liquid can drip onto the surface to be cleaned.
  • the Figures 4 and 5 show a second embodiment of a cleaning device 2 according to the invention, in which the second roller part 5 is drop-shaped.
  • the endless cleaning element 3 lies against the tip of the drop shape, which has a radius of curvature r 2 that is smaller than the radius of curvature r 1 of the first roller part 4, and sometimes against the opposite partial area of the drop shape, which has a radius of curvature r1 that also corresponds to corresponds to the radius of curvature r1 of the first roller part 4.
  • the liquid stored in the endless cleaning element 3 is not continuously thrown off in the region of the second roller part 5, but only when the endless cleaning element 3 just lies against the tip of the drop shape with the radius of curvature r 2 (see Figure 5 ).
  • the second roller part 5 has a tensioning device 8 which acts on the second roller part 5 with a spring force relative to its axis of rotation x.
  • the tensioning device 8 has a spring, the restoring force of which the second roller part 5 attempts to shift from the axis of rotation x in the direction of the endless cleaning element 3, the endless cleaning element 3 always remaining tensioned, regardless of the current orientation of the drop shape.
  • the cleaning device 2 can also have differently shaped roller parts 4, 5.
  • the roller parts 4, 5 can be connected to one another in a rotationally fixed manner as a one-piece roller.
  • the roller parts 4, 5 advantageously form the Shape of a drop (similar Figures 4 and 5 ), so that on the one hand a larger radius of curvature r 1 and on the other hand a smaller radius of curvature r 2 is provided.
  • the endless cleaning element 3 can be pulled over the surface of the roller parts 4, 5 by means of an electric motor, so that a frictional force arises between the endless cleaning element 3 and the roller parts 4, 5.

Landscapes

  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Description

Gebiet der TechnikTechnical field

Die Erfindung betrifft ein Reinigungsgerät, insbesondere ein Bodenreinigungsgerät, mit einer Reinigungseinrichtung, welche zumindest teilweise mit einem Endlosreinigungselement bedeckt ist, welches während einer Einwirkung auf eine zu reinigende Fläche kontinuierlich relativ zu der zu reinigenden Fläche rotierbar ist, wobei die Reinigungseinrichtung zumindest ein auf die zu reinigende Fläche aufsetzbares erstes Walzenteil und ein zweites Walzenteil aufweist, wobei ein Krümmungsradius eines Walzenteilbereiches des ersten Walzenteils von einem Krümmungsradius eines Walzenteilbereiches des zweiten Walzenteils verschieden ist.The invention relates to a cleaning device, in particular a floor cleaning device, with a cleaning device which is at least partially covered with an endless cleaning element which, during action on a surface to be cleaned, can be rotated continuously relative to the surface to be cleaned, the cleaning device at least one towards the has a first roller part and a second roller part, wherein a radius of curvature of a roller portion of the first roller part is different from a radius of curvature of a roller portion of the second roller part.

Stand der TechnikState of the art

Reinigungsgeräte der vorgenannten Art sind im Stand der Technik bekannt. Diese können beispielsweise Feuchtreinigungsgeräte sein, welche als Reinigungseinrichtung eine befeuchtbare Reinigungswalze aufweisen. Dabei kann das Reinigungsgerät grundsätzlich als durch einen Nutzer geführtes Gerät ausgebildet sein, oder als selbsttätig verfahrbarer Reinigungsroboter.Cleaning devices of the aforementioned type are known in the prior art. These can be, for example, wet cleaning devices which have a moistenable cleaning roller as the cleaning device. The cleaning device can in principle be designed as a device guided by a user, or as an automatically movable cleaning robot.

Die Druckschrift DE 20 2007 004 878 U1 offenbart beispielsweise ein Reinigungsgerät zum Feuchtwischen von Bodenbelägen. Das Reinigungsgerät weist als Reinigungseinrichtung eine Lappenrolle auf, welche einen von innen befeuchtbaren Hohlkörper aufweist, der mit einem Velours oder Mikrofaservlies als Endlosreinigungselement bedeckt ist. Dieses Endlosreinigungselement ist über den gesamten Umfang der Lappenrolle ausgebildet, wobei durch Rotation der Lappenrolle relativ zu dem zu reinigenden Bodenbelag gleichzeitig eine Rotation des Endlosreinigungselementes erfolgt.The publication DE 20 2007 004 878 U1 discloses for example a cleaning device for damp wiping floor coverings. As a cleaning device, the cleaning device has a cloth roll which has a hollow body which can be moistened from the inside and which is covered with a velor or microfiber fleece as an endless cleaning element. This endless cleaning element is formed over the entire circumference of the rag roller, rotation of the rag roller relative to the floor covering to be cleaned simultaneously rotating the endless cleaning element.

Zur Reinigung der Lappenrolle von bei der Einwirkung auf die Bodenfläche aufgenommenem Schmutz weist das Reinigungsgerät eine Schleuderfunktion zur Selbstreinigung der Lappenrolle auf, bei welcher unter Zufuhr von Flüssigkeit ein Durchspülen und Abschleudern der Außenrolle erfolgt.To clean the rag roll of dirt absorbed when it acts on the floor surface, the cleaning device has a spinning function for self-cleaning the rag roll, in which the outer roll is rinsed and spun off with the supply of liquid.

Nachteilig ist dabei, dass die Regeneration des Endlosreinigungselementes, d. h. das Abschleudern der Schmutzflüssigkeit, während eines zu dem Wischvorgang separaten Regenerationsvorgangs erfolgen muss. Es ist somit für eine Regeneration des Endlosreinigungselementes erforderlich, den Wischvorgang zu stoppen und einen Regenerationsvorgang durchzuführen, welcher gegebenenfalls einen zusätzlichen Motor oder ein Getriebe zur Bereitstellung einer großen Drehzahl der Reinigungseinrichtung während des Regenerationsvorgangs erfordert.The disadvantage here is that the regeneration of the endless cleaning element, i. H. throwing off the dirty liquid during a regeneration process that is separate from the wiping process. It is therefore necessary for a regeneration of the endless cleaning element to stop the wiping process and to carry out a regeneration process, which may require an additional motor or a gear to provide a high speed of the cleaning device during the regeneration process.

Des Weiteren sind aus dem Stand der Technik auch Reinigungseinrichtungen bekannt, welche ein auf die zu reinigende Fläche aufsetzbares erstes Walzenteil und ein zweites Walzenteil aufweisen, wobei die Krümmungsradien der Walzenteile unterschiedlich sind. Hierzu offenbar beispielsweise die EP 2436296 A ein Kehrgerät mit einer Entfeuchtungseinrichtung aus einem umlaufenden Wischtuch, welches elektromotorisch angetrieben in einer Vertikalebene um Umlenkrollen geführt ist. Die Druckschrift US 1798327 A offenbart einen Schrubber mit einem Schrubberelement, welches ein endloses Wischtuch aufweist, welches über Rollen umgelenkt ist. Des Weiteren offenbart auch die Druckschrift US 2953798 A eine Flächenbearbeitungseinrichtung mit einem Endlos-Reinigungstuch, welches kontinuierlich um eine Reinigungswalze relativ zu einer zu reinigenden Fläche rotierbar ist, wobei das Reinigungstuch des Weiteren über Führungsrollen mit kleinerem Krümmungsradius umgelenkt ist.Furthermore, cleaning devices are known from the prior art which have a first roller part which can be placed on the surface to be cleaned and a second roller part, the radii of curvature of the roller parts being different. For example, the EP 2436296 A a sweeper with a dehumidifier from a rotating wipe, which is driven by an electric motor in a vertical plane around pulleys. The publication US 1798327 A discloses a scrubber with a scrubbing element which has an endless wipe which is deflected over rollers. The publication also discloses US 2953798 A a surface processing device with an endless cleaning cloth, which can be rotated continuously around a cleaning roller relative to a surface to be cleaned, the cleaning cloth being further deflected via guide rollers with a smaller radius of curvature.

Zusammenfassung der ErfindungSummary of the invention

Es ist Aufgabe der Erfindung, ein Reinigungsgerät zu schaffen, bei welchem die Regeneration des Endlosreinigungselementes optimiert ist.It is an object of the invention to provide a cleaning device in which the regeneration of the endless cleaning element is optimized.

Zur Lösung schlägt die Erfindung ein Reinigungsgerät vor, bei welchem zumindest ein Walzenteil rotationsfest innerhalb der Reinigungseinrichtung angeordnet ist.To solve the problem, the invention proposes a cleaning device in which at least one roller part is arranged in a rotationally fixed manner within the cleaning device.

Erfindungsgemäß ist vorgesehen, dass zumindest ein Walzenteil rotationsfest innerhalb der Reinigungseinrichtung angeordnet ist. Gemäß dieser Ausgestaltung wird das Endlosreinigungselement in dem Bereich dieses rotationsfesten Walzenteils über das Walzenteil gezogen, so dass eine Reibung zwischen dem Endlosreinigungselement und dem Walzenteil stattfindet. Diese Reibung kann gegebenenfalls zur ergänzenden Regeneration des Endlosreinigungselementes genutzt werden. In diesem Zusammenhang kann vorgesehen sein, dass ein Walzenteil der Reinigungseinrichtung rotationsfest und ein anderes Walzenteil rotierbar ausgebildet ist. Darüber hinaus können auch alle Walzenteile, d. h. zwei oder mehr Walzenteile der Reinigungseinrichtung, rotationsfest sein, wobei das Endlosreinigungselement mittels einer zusätzlichen Antriebseinrichtung um die Walzenteile gezogen wird, damit das Endlosreinigungselement auf die zu reinigende Fläche einwirken kann.According to the invention it is provided that at least one roller part is arranged in a rotationally fixed manner within the cleaning device. According to this configuration, the endless cleaning element is pulled over the roller part in the region of this rotationally fixed roller part, so that there is friction between the endless cleaning element and the roller part. This friction can optionally be used for the additional regeneration of the endless cleaning element. In this context it can be provided that one roller part of the cleaning device is designed to be rotationally fixed and another roller part is designed to be rotatable. In addition, all roller parts, i.e. H. two or more roller parts of the cleaning device, be rotationally fixed, the endless cleaning element being drawn around the roller parts by means of an additional drive device, so that the endless cleaning element can act on the surface to be cleaned.

Es ist eine Reinigungseinrichtung mit zwei oder mehr Walzenteilen geschaffen, welche voneinander verschiedene Krümmungsradien aufweisen, so dass bei der Rotation der Walzenteile aufgrund der unterschiedlichen Krümmungsradien abweichende Zentrifugalkräfte auf die Schmutzflüssigkeit im Bereich dieser Krümmungsradien wirken. Im Rahmen der Erfindung können dabei als erstes Walzenteil und zweites Walzenteil unterschiedliche Bereiche ein und derselben Walze verstanden werden, oder alternativ zwei separate Walzenteile, welche mittels des Endlosreinigungselementes verbunden sind. Vorteilhaft ist nur einer der Walzenteile auf die zu reinigende Fläche aufsetzbar, so dass während einer Einwirkung des Endlosreinigungselementes auf die zu reinigende Fläche nur ein Kontakt zwischen bspw. dem ersten Walzenteil und der Fläche besteht, während das zweite Walzenteil die zu reinigende Fläche nicht berührt. Bei dieser Ausgestaltung dient das erste Walzenteil zur Einwirkung auf die zu reinigende Fläche mittels des die Fläche kontaktierenden Endlosreinigungselementes, während das zweite Walzenteil zur Regeneration des Endlosreinigungselementes dient. Da es sich bei dem Endlosreinigungselement um ein kontinuierlich um die beiden Walzenteile umlaufendes Element, wie beispielsweise ein Endloswischtuch, handelt, kann zeitgleich während der Einwirkung eines ersten Teilbereiches des Endlosreinigungselementes auf die zu reinigende Fläche eine Regeneration eines zweiten Teilbereiches des Endlosreinigungselementes an dem zweiten Walzenteil erfolgen. Im Gegensatz zum Stand der Technik ist es somit nicht erforderlich, für einen Regenerationsbetrieb die Einwirkung auf die zu reinigende Fläche, d. h. den Reinigungsvorgang, zu unterbrechen. Vielmehr können Einwirkung (Wischen) und Regeneration zeitgleich erfolgen. Darüber hinaus ist es nicht erforderlich, der Reinigungseinrichtung ein Getriebe zuzuordnen, welches zwei unterschiedliche Drehzahlen bereitstellen kann, nämlich eine erste Drehzahl für die Einwirkung auf die zu reinigende Fläche und eine zweite Drehzahl für die Regeneration des Endlosreinigungselementes. Das Abschleudern der Schmutzflüssigkeit im Bereich des zweiten Walzenteils erfolgt vielmehr über die abweichende Bemessung der Krümmungsradien des ersten und des zweiten Walzenteils, wobei der Krümmungsradius des zweiten Walzenteils geringer ist als der Krümmungsradius des ersten Walzenteils, so dass im Bereich des zweiten Walzenteils eine größere Zentrifugalkraft auf die Schmutzflüssigkeit wirkt als im Bereich des ersten Walzenteils.A cleaning device is created with two or more roller parts which have radii of curvature that differ from one another, so that when the roller parts rotate, different centrifugal forces act on the dirty liquid in the region of these radii of curvature due to the different radii of curvature. Within the scope of the invention, different areas of one and the same roll can be understood as the first roll part and the second roll part, or alternatively two separate roll parts, which are connected by means of the endless cleaning element. Advantageously, only one of the roller parts can be placed on the surface to be cleaned, so that during an action of the endless cleaning element on the surface to be cleaned there is only contact between, for example, the first roller part and the surface, while the second roller part does not touch the surface to be cleaned. In this embodiment, the first roller part serves to act on the surface to be cleaned by means of the endless cleaning element contacting the surface, while the second roller part serves to regenerate the endless cleaning element. Since the continuous cleaning element is an element continuously rotating around the two roller parts, such as an endless wiping cloth, regeneration of a second partial area of the continuous cleaning element on the second roller part can take place at the same time as a first partial area of the continuous cleaning element acts on the surface to be cleaned , In contrast to the prior art, it is therefore not necessary to interrupt the action on the surface to be cleaned, ie the cleaning process, for a regeneration operation. Rather, action (wiping) and regeneration can take place simultaneously. In addition, it is not necessary to assign a gearbox to the cleaning device which can provide two different speeds, namely a first speed for the action on the surface to be cleaned and a second speed for the regeneration of the endless cleaning element. Rather, the dirty liquid is thrown off in the region of the second roller part via the different dimensioning of the radii of curvature of the first and second roller parts, the radius of curvature of the second roller part being less than the radius of curvature of the first roller part, so that a greater centrifugal force is exerted in the region of the second roller part the dirty liquid acts as in the area of the first roller part.

Vorteilhaft ist zumindest ein Walzenteil rotierbar innerhalb der Reinigungseinrichtung angeordnet. Durch diese Ausgestaltung rollt das Endlosreinigungselement bei der Rotation der Reinigungseinrichtung auf dem Umfang des Walzenteils ab. Dies vereinfacht das reibungsverminderte Fördern des Endlosreinigungselementes von dem ersten Walzenteil zu dem zweiten Walzenteil, und zurück, so dass ein jeder Teilbereich des Endlosreinigungselementes wiederkehrend Schmutz aufnehmen und Schmutz abgeben kann. Das Walzenteil kann entweder aktiv mittels eines Elektromotors angetrieben sein oder passiv infolge einer Bewegung des Endlosreinigungselementes mitbewegt werden. In dem letztgenannten Fall wird das Endlosreinigungselement durch einen dem anderen Walzenteil zugeordneten Elektromotor oder einen von den Walzenteilen separat ausgebildeten Elektromotor bewegt. Vorteilhaft ist ein erstes Walzenteil aktiv angetrieben, während ein zweites Walzenteil passiv infolge Rotation des Endlosreinigungselementes mit rotiert.At least one roller part is advantageously arranged rotatably within the cleaning device. With this configuration, the endless cleaning element rolls on the circumference of the roller part when the cleaning device rotates. This simplifies the friction-reduced conveying of the endless cleaning element from the first roller part to the second roller part, and back, so that each section of the endless cleaning element can repeatedly pick up dirt and release dirt. The roller part can either be driven actively by means of an electric motor or can be moved passively as a result of a movement of the endless cleaning element. In the latter case, the endless cleaning element is moved by an electric motor assigned to the other roller part or by an electric motor designed separately from the roller parts. A first roller part is advantageously actively driven, while a second roller part also rotates passively as a result of the rotation of the endless cleaning element.

Es wird vorgeschlagen, dass die Reinigungseinrichtung als Zugmitteltrieb ausgebildet ist, wobei die Walzenteile voneinander beabstandete Wellen sind, welche mittels des Endlosreinigungselementes drehmomentübertragend miteinander verbunden sind. Die Reinigungseinrichtung ist somit wie ein Zugmitteltrieb ausgebildet, wobei das Drehmoment eines aktiv angetriebenen Walzenteils auf ein anderes Walzenteil der Reinigungseinrichtung übertragen wird, welches daraufhin passiv mitrotiert. Die Drehmomentübertragung erfolgt durch das Endlosreinigungselement, welches über die Umfangsflächen der Walzenteile gelegt ist, so dass sich beide Walzenteile innerhalb des von dem Endlosreinigungselement begrenzten Bereiches befinden. Diese Ausgestaltung kombiniert besonders vorteilhaft den Antrieb eines zweiten Walzenteils mittels eines ersten Walzenteils und gleichzeitig die Aufnahme von Schmutz bzw. Schmutzflüssigkeit im Bereich des ersten Walzenteils und das Abschleudern der Schmutzflüssigkeit im Bereich des zweiten Walzenteils, oder umgekehrt. Es ist somit ein kontinuierlicher Regenerationsbetrieb bei gleichzeitigem Einwirken auf die zu reinigende Fläche während eines üblichen Arbeitsvorgangs möglich. Da der Zugmitteltrieb erfindungsgemäß zwei unterschiedlich große Walzenteile als Wellen aufweist, ist die Zentrifugalkraft an dem größeren, ersten Walzenteil geringer als an dem zweiten, kleineren Walzenteil. Die Drehzahl der Reinigungseinrichtung und damit auch die Geschwindigkeit des Endlosreinigungselementes, kann so gewählt werden, dass im Bereich des ersten Walzenteils, welcher der Einwirkung auf die zu reinigende Fläche dient, keine Flüssigkeit abgeschleudert wird, während im Bereich des zweiten, kleineren Walzenteils eine größere Zentrifugalkraft an der Schmutzflüssigkeit angreift, so dass diese von dem Endlosreinigungselement abgeschleudert wird.It is proposed that the cleaning device is designed as a traction drive, the roller parts being spaced-apart shafts which are connected to one another in a torque-transmitting manner by means of the endless cleaning element. The cleaning device is thus designed like a traction mechanism drive, the torque of an actively driven roller part being transferred to another roller part of the cleaning device, which then also rotates passively. The torque is transmitted through the endless cleaning element, which is placed over the circumferential surfaces of the roller parts, so that both roller parts are located within the area delimited by the endless cleaning element. This embodiment particularly advantageously combines the drive of a second roller part by means of a first roller part and at the same time the absorption of dirt or dirty liquid in the region of the first roller part and the centrifuging of the dirty liquid in the region of the second roller part, or vice versa. It is therefore a continuous regeneration operation with simultaneous action possible on the surface to be cleaned during a normal work process. Since, according to the invention, the traction mechanism drive has two roller parts of different sizes as shafts, the centrifugal force on the larger, first roller part is lower than on the second, smaller roller part. The speed of the cleaning device and thus also the speed of the endless cleaning element can be selected so that no liquid is thrown off in the area of the first roller part, which acts on the surface to be cleaned, while in the area of the second, smaller roller part a greater centrifugal force attacks the dirty liquid so that it is thrown off by the endless cleaning element.

Es wird vorgeschlagen, dass die Walzenteile rotationsfest, insbesondere einteilig, miteinander verbunden sind. Gemäß dieser Ausgestaltung sind die Walzenteile unmittelbar und nicht nur über das Endlosreinigungselement miteinander verbunden. Insbesondere handelt es sich bei den Walzenteilen um Teilbereiche ein und derselben Walze. Diese Walze ist dabei so ausgebildet, dass die einzelnen Bereiche, d. h. die Walzenteile, voneinander verschiedene Krümmungsradien aufweisen, um die Änderung der Zentrifugalkraft an den verschiedenen Walzenteilen sicherzustellen. Gemäß dieser Ausgestaltung sind die Walzenteile zueinander rotationsfest, wobei das Endlosreinigungselement relativ zu der einteiligen Walze bewegt wird. Dabei gelangt das Endlosreinigungselement erfindungsgemäß über die voneinander verschiedenen Walzenteile mit unterschiedlichen Krümmungsradien, so dass die auf die Schmutzflüssigkeit wirkende Zentrifugalkraft im Bereich des zweiten Walzenteils (mit kleinerem Krümmungsradius) zu einem Abschleudern der Schmutzflüssigkeit führt.It is proposed that the roller parts are connected to one another in a rotationally fixed manner, in particular in one piece. According to this configuration, the roller parts are connected to one another directly and not only via the endless cleaning element. In particular, the roller parts are partial areas of one and the same roller. This roller is designed so that the individual areas, ie. H. the roller parts have radii of curvature different from one another in order to ensure the change in the centrifugal force on the different roller parts. According to this configuration, the roller parts are rotationally fixed to one another, the endless cleaning element being moved relative to the one-part roller. According to the invention, the endless cleaning element reaches the different roller parts with different radii of curvature, so that the centrifugal force acting on the dirty liquid in the region of the second roller part (with a smaller radius of curvature) leads to the dirty liquid being thrown off.

Des Weiteren ist vorgesehen, dass das Endlosreinigungselement relativ zu der Reinigungseinrichtung verlagerbar ist, insbesondere mittels mindestens eines motorisch angetriebenen Walzenteils förderbar, ist. Gemäß dieser Ausgestaltung ist das Endlosreinigungselement unabhängig von einer Bewegung der Walzenteile verlagerbar, so dass auch bei rotationsfest innerhalb der Reinigungseinrichtung angeordneten Walzenteilen eine Förderung des Endlosreinigungselementes möglich ist. Besonders vorteilhaft ist jedoch eines der Walzenteile motorisch angetrieben.Furthermore, it is provided that the endless cleaning element can be displaced relative to the cleaning device, in particular by means of at least a motor-driven roller part is conveyable. According to this embodiment, the endless cleaning element can be displaced independently of a movement of the roller parts, so that the endless cleaning element can also be conveyed when the roller parts are arranged in a rotationally fixed manner within the cleaning device. However, one of the roller parts is particularly advantageously motor-driven.

Es wird vorgeschlagen, dass das Endlosreinigungselement um die Walzenteile gespannt ist, wobei die Reinigungseinrichtung insbesondere eine eine Federkraft auf das Endlosreinigungselement ausübende Spanneinrichtung aufweist. Durch das Spannen des Endlosreinigungselementes kann eine Drehmomentübertragung zwischen den Walzenteilen stattfinden. Da das Endlosreinigungselement zudem in den meisten Fällen aus einem flexiblen Material besteht, beispielsweise einem Vlies oder ähnlichem, ist eine kontinuierliche Ausübung einer Federkraft auf das Endlosreinigungselement von Vorteil. Vorteilhaft weist die Reinigungseinrichtung somit eine Spanneinrichtung auf, welche diese Federkraft auf das Endlosreinigungselement ausübt. Die Spanneinrichtung kann beispielsweise einem Walzenteil zugeordnet sein, indem die Rotationsachse des Walzenteils so verlagerbar ist, dass das Endlosreinigungselement stets unter Spannung ist. Dies bietet sich zum einen für Endlosreinigungselemente an, welche im Laufe ihrer Betriebsdauer einem Verlust an Eigenspannung unterliegen, oder zum anderen in Bezug auf Walzenteile, welche entlang ihres Umfangs unterschiedliche Krümmungsradien aufweisen, so dass das Endlosreinigungselement ohne eine solche Spanneinrichtung mal mehr und mal weniger gespannt wäre.It is proposed that the endless cleaning element be tensioned around the roller parts, the cleaning device in particular having a tensioning device which exerts a spring force on the endless cleaning element. By tensioning the endless cleaning element, a torque transmission can take place between the roller parts. Since the endless cleaning element also consists in most cases of a flexible material, for example a fleece or the like, it is advantageous to continuously exert a spring force on the endless cleaning element. The cleaning device thus advantageously has a tensioning device which exerts this spring force on the endless cleaning element. The clamping device can be assigned to a roller part, for example, in that the axis of rotation of the roller part can be displaced such that the endless cleaning element is always under tension. This is useful on the one hand for endless cleaning elements that are subject to a loss of internal stress over the course of their operating life, or on the other hand in relation to roller parts that have different radii of curvature along their circumference, so that the endless cleaning element is tensioned more or less less without such a clamping device would.

Des Weiteren wird vorgeschlagen, dass der Krümmungsradius des ersten Walzenteils zwei- bis zwanzigmal, insbesondere zehn- bis fünfzehnmal, so groß ist wie der Krümmungsradius des zweiten Walzenteils. Je mehr sich die Krümmungsradien der Walzenteile unterscheiden, desto deutlicher kann die Einwirkung des ersten Walzenteils ohne Abgabe von Flüssigkeit von dem Regenerationsvorgang des Endlosreinigungselementes an dem zweiten Walzenteil unterschieden werden. Durch das Verhältnis der Krümmungsradien zueinander kann das Verhältnis der an den jeweiligen Walzenteilen angreifenden Zentrifugalkräfte eingestellt werden, was gleichzeitig das Anhaften bzw. Abschleudern von Schmutzflüssigkeit im Bereich der jeweiligen Walzenteile bedingt. Die als besonders vorteilhaft dargestellten Krümmungsradien-Verhältnisse von 10:1 bis 15:1 haben sich in der Praxis als besonders vorteilhaft herausgestellt.Furthermore, it is proposed that the radius of curvature of the first roller part is two to twenty times, in particular ten to fifteen times, as large as the radius of curvature of the second roller part. The more the Differentiate radii of curvature of the roller parts, the more clearly the action of the first roller part can be distinguished from the regeneration process of the endless cleaning element on the second roller part without dispensing liquid. The ratio of the radii of curvature to one another allows the ratio of the centrifugal forces acting on the respective roller parts to be set, which at the same time causes the adhering or centrifuging of dirty liquid in the region of the respective roller parts. The curvature radius ratios of 10: 1 to 15: 1 which have been shown to be particularly advantageous have proven to be particularly advantageous in practice.

Des Weiteren wird vorgeschlagen, dass das Walzenteil rund oder tropfenförmig ausgebildet ist. Dabei kann beispielsweise ein Walzenteil der Reinigungseinrichtung bezogen auf den Querschnitt kreisrund ausgebildet sein, während ein zweites Walzenteil tropfenförmig ausgebildet ist und somit entlang seines Umfangs den Krümmungsradius ändert. Das tropfenförmige zweite Walzenteil kann dabei in Bezug auf einen seiner Walzenteilbereiche einen Krümmungsradius aufweisen, welcher dem Krümmungsradius des ersten Walzenteils entspricht, während ein anderer Walzenteilbereich des tropfenförmigen zweiten Walzenteils einen Krümmungsradius aufweist, welcher geringer ist als der Krümmungsradius des ersten Walzenteils. Das Abschleudern von Schmutzflüssigkeit erfolgt gemäß dieser Ausführungsform in dem verjüngten Bereich der Tropfenform, welcher den geringeren Krümmungsradius aufweist. Dadurch wird im Bereich des zweiten Walzenteils nicht kontinuierlich Schmutzflüssigkeit abgeschleudert, sondern nur dann, wenn das Endlosreinigungselement in den Bereich der verjüngten Tropfenspitze gelangt. Die Reinigungseinrichtung ist dabei vorteilhaft so ausgebildet, dass das Endlosreinigungselement unabhängig von der aktuellen Orientierung der Tropfenform stets gespannt an den Walzenteilen anliegt, so dass eine Rotation des Endlosreinigungselementes möglich ist. Vorteilhaft kann eine Längendifferenz der Umfänge gegebenenfalls mittels der zuvor erläuterten Spanneinrichtung ausgeglichen werden.It is also proposed that the roller part be round or drop-shaped. In this case, for example, a roller part of the cleaning device can be circular with respect to the cross section, while a second roller part is drop-shaped and thus changes the radius of curvature along its circumference. The drop-shaped second roller part can have a radius of curvature with respect to one of its roller partial regions, which corresponds to the radius of curvature of the first roller part, while another roller partial region of the drop-shaped second roller part has a radius of curvature which is less than the radius of curvature of the first roller part. According to this embodiment, dirty liquid is thrown off in the tapered area of the drop shape, which has the smaller radius of curvature. As a result, dirty liquid is not continuously thrown off in the region of the second roller part, but only when the endless cleaning element reaches the region of the tapered drop tip. The cleaning device is advantageously designed in such a way that the endless cleaning element, regardless of the current orientation of the drop shape, always lies tightly against the roller parts, so that rotation of the endless cleaning element is possible. A difference in length of the Scope may be compensated for by means of the previously explained clamping device.

Schließlich wird vorgeschlagen, dass das zweite Walzenteil mindestens ein mechanisch auf das Endlosreinigungselement einwirkendes Einwirkungselement zur Reinigung des Endlosreinigungselementes aufweist. Das mechanische Einwirkungselement dient zur Unterstützung der Regeneration des Endlosreinigungselementes an dem zweiten Walzenteil. Das Einwirkungselement ist vorteilhaft auf dem Umfang des zweiten Walzenteils angeordnet, so dass dieses bei der Verlagerung des Endlosreinigungselementes relativ zu dem zweiten Walzenteil auf das Endlosreinigungselement einwirkt. Beispielsweise kann es sich bei dem Einwirkungselement um eine Noppenstruktur der Oberfläche des zweiten Walzenteils oder ähnliches handeln. Somit wird zur Regeneration nicht nur das Abschleudern der Schmutzflüssigkeit aufgrund der Zentrifugalkraft genutzt, sondern vielmehr auch die mechanische Einwirkung der Einwirkungselemente auf das Endlosreinigungselement.Finally, it is proposed that the second roller part have at least one action element mechanically acting on the endless cleaning element for cleaning the endless cleaning element. The mechanical action element serves to support the regeneration of the endless cleaning element on the second roller part. The action element is advantageously arranged on the circumference of the second roller part, so that it acts on the endless cleaning element when the endless cleaning element is displaced relative to the second roller part. For example, the action element can be a nub structure of the surface of the second roller part or the like. Thus, not only the centrifugal force is used to regenerate the dirty liquid, but also the mechanical action of the action elements on the endless cleaning element.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
ein erfindungsgemäßes Reinigungsgerät,
Fig. 2
eine erfindungsgemäße Reinigungseinrichtung in einer Explosionsdarstellung,
Fig. 3
eine Seitenansicht einer Reinigungseinrichtung gemäß einer ersten Ausführungsform,
Fig. 4
eine Seitenansicht einer Reinigungseinrichtung gemäß einer zweiten Ausführungsform in einer ersten Stellung,
Fig. 5
die Reinigungseinrichtung gemäß Figur 4 in einer zweiten Stellung.
The invention is explained in more detail below on the basis of exemplary embodiments. Show it:
Fig. 1
a cleaning device according to the invention,
Fig. 2
a cleaning device according to the invention in an exploded view,
Fig. 3
2 shows a side view of a cleaning device according to a first embodiment,
Fig. 4
2 shows a side view of a cleaning device according to a second embodiment in a first position,
Fig. 5
the cleaning device according to Figure 4 in a second position.

Beschreibung der AusführungsformenDescription of the embodiments

Dargestellt und beschrieben ist zunächst mit Bezug zu Figur 1 ein Reinigungsgerät 1 in Form eines Feuchtreinigungsgerätes zur Feuchtreinigung einer zu reinigenden Fläche. Das Reinigungsgerät 1 weist ein Vorsatzgerät 9 auf, welches bei einem Reinigungsvorgang in Kontakt mit der zu reinigenden Fläche steht. Das Vorsatzgerät 9 weist eine Reinigungseinrichtung 2 auf, welche zwei separat voneinander ausgebildete Walzenteile 4, 5 sowie ein als Endloswischtuch ausgebildetes Endlosreinigungselement 3 aufweist. Das Endlosreinigungselement 3 ist um die beiden Walzenteile 4, 5 gelegt, so dass dieses bei einer Rotation der Walzenteile 4, 5 um jeweils eine Drehachse x von dem ersten Walzenteil 4 zu dem zweiten Walzenteil 5, und zurück, zirkulieren kann. Das Reinigungsgerät 1 stützt sich über das erste Walzenteil 4 auf der zu reinigenden Fläche ab. Das zweite Walzenteil 5 steht nicht in Kontakt mit der zu reinigenden Fläche, sondern ist innerhalb des Vorsatzgerätes 9 so versetzt, dass ein Kontakt nicht möglich ist. Die Walzenteile 4, 5 erstrecken sich quer zu einer üblichen Verfahrrichtung r des Reinigungsgerätes 1, welche aus der üblichen Arbeitsbewegung eines Nutzers des Reinigungsgerätes 1 resultiert, nämlich generell abwechselnd vor und zurück, dies gegebenenfalls weiter unter leichtem Ausweichen in eine nächstliegende Reinigungsbahn. Die Walzenteile 4, 5 erstrecken sich annähernd über die gesamte quer zu der Verfahrrichtung r stehende Breite des Reinigungsgerätes 1. Entsprechend der gezeigten Anordnung ist jeweils ein Walzenteil 4, 5 bei einer Bewegung des Reinigungsgerätes 1 in Verfahrrichtung r vorne bzw. hinten an dem Vorsatzgerät 9 angeordnet. Zumindest eines der Walzenteile 4, 5 ist über einen Elektromotor antreibbar, d. h. um seine Drehachse x rotierbar.Is shown and described initially with reference to Figure 1 a cleaning device 1 in the form of a wet cleaning device for wet cleaning a surface to be cleaned. The cleaning device 1 has a front attachment 9 which is in contact with the surface to be cleaned during a cleaning process. The attachment 9 has a cleaning device 2 which has two roller parts 4, 5 which are formed separately from one another and an endless cleaning element 3 which is in the form of an endless wipe. The endless cleaning element 3 is placed around the two roller parts 4, 5, so that when the roller parts 4, 5 rotate, it can circulate around an axis of rotation x from the first roller part 4 to the second roller part 5 and back. The cleaning device 1 is supported on the surface to be cleaned via the first roller part 4. The second roller part 5 is not in contact with the surface to be cleaned, but is offset within the attachment 9 so that contact is not possible. The roller parts 4, 5 extend transversely to a usual direction of travel r of the cleaning device 1, which results from the usual working movement of a user of the cleaning device 1, namely generally alternately back and forth, this possibly further with a slight dodging into a nearby cleaning path. The roller parts 4, 5 extend approximately over the entire width of the cleaning device 1, which is transverse to the direction of travel r arranged. At least one of the roller parts 4, 5 can be driven by an electric motor, ie rotatable about its axis of rotation x.

Das Vorsatzgerät 9 weist einen Tank zur Bevorratung von Flüssigkeit zur Reinigung der zu reinigenden Fläche auf. Die Flüssigkeit kann über einen Einfüllstutzen 10 in den Tank des Vorsatzgerätes 9 gefüllt werden. Die Befeuchtung des Endlosreinigungselementes 3 mit der Flüssigkeit kann entweder von innen durch zumindest ein Walzenteil 4, 5 erfolgen, oder durch Aufspritzen der Flüssigkeit von außen auf das Walzenteil 4, 5.The attachment 9 has a tank for storing liquid for cleaning the surface to be cleaned. The liquid can be filled into the tank of the attachment 9 via a filler neck 10. The endless cleaning element 3 can be moistened with the liquid either from the inside by at least one roller part 4, 5, or by spraying the liquid onto the roller part 4, 5 from the outside.

Während eines üblichen Verfahrvorgangs des Reinigungsgerätes 1, ohne Bearbeitung einer zu reinigenden Fläche, ist die Reinigungseinrichtung 2 nicht aktiv angetrieben. Vielmehr ergibt sich alleine aufgrund des Reibschlusses zu der zu reinigenden Fläche eine passive Rotation der Walzenteile 4, 5, welche jedoch keine für ein Abschleudern der Schmutzflüssigkeit genügend große Zentrifugalkraft bewirkt. Während eines Reinigungsvorgangs der Fläche mittels des ersten Walzenteils 4 wird zumindest eines der Walzenteile 4, 5 aktiv mittels des Elektromotors angetrieben. Während des Reinigungsvorgangs stellt sich eine Wischkante entlang der Berührungslinie zwischen dem ersten Walzenteil 4 und der zu reinigenden Fläche ein. Diese Wischkante übernimmt die Reinigung der Fläche durch die Bewegung der Wischkante relativ zu der Fläche, wodurch Schmutz gelöst und auf das Endlosreinigungselement 3 im Bereich des ersten Walzenteils 4 befördert wird.The cleaning device 2 is not actively driven during a normal travel process of the cleaning device 1 without machining a surface to be cleaned. Rather, solely due to the frictional engagement with the surface to be cleaned, there is a passive rotation of the roller parts 4, 5, which, however, does not cause a centrifugal force which is sufficiently large for the dirty liquid to be thrown off. During a cleaning process of the surface by means of the first roller part 4, at least one of the roller parts 4, 5 is actively driven by means of the electric motor. During the cleaning process, a wiping edge is established along the line of contact between the first roller part 4 and the surface to be cleaned. This wiping edge takes over the cleaning of the surface by the movement of the wiping edge relative to the surface, whereby dirt is loosened and conveyed onto the endless cleaning element 3 in the area of the first roller part 4.

Figur 2 zeigt eine Detailansicht des ersten Walzenteils 4 der Reinigungseinrichtung 2. Der erste Walzenteil 4 ist dabei hinsichtlich seiner verschiedenen Ummantelungen explosionsartig dargestellt. Der erste Walzenteil 4 ist grundsätzlich als stirnseitig verschlossener zylindrischer Hohlkörper ausgebildet, wobei zur besseren Anschauung der stirnseitige Verschluss nicht dargestellt ist. Alternativ kann der erste Walzenteil 4 auch als massiver Körper ausgebildet sein. Der erste Walzenteil 4 ist von einem drehfest an diesem angeordneten Schwammkörper 11 umgeben. Der Schwammkörper 11 ist offenporig ausgestaltet und besitzt die Fähigkeit einer Zwischenspeicherung von Flüssigkeit. Der Schwammkörper 11 ist zumindest teilweise von dem Endlosreinigungselement 3 bedeckt, welches das erste Walzenteil 4 mit dem zweiten Walzenteil 5 verbindet. Das Endlosreinigungselement 3 ist hier als Mikrofasertuch ausgebildet. Im Gegensatz zu dem Schwammkörper 11 ist dieses rotierbar innerhalb der Reinigungseinrichtung 2 angeordnet, so dass der an dem Schwammkörper 11 anliegende Teilbereich des Endlosreinigungselementes 3 zirkulierend wechselt. Sobald der Schwammkörper 11 und/oder das Endlosreinigungselement 3 mit Flüssigkeit beaufschlagt sind, gibt die Reinigungseinrichtung 2 unter Druck, welcher durch eine Verschiebung des Reinigungsgerätes 1 auf der zu reinigenden Fläche entsteht, Flüssigkeit auf die zu reinigende Fläche ab. Es kommt dabei zu einem Austritt von Flüssigkeit im Bereich der Wischkante des ersten Walzenteils 4. Die Flüssigkeit wird dabei aus dem Schwammkörper 11 und/oder dem Endlosreinigungselement 3 ausgequetscht und auf die zu reinigende Fläche aufgetragen. Bei weitergehender Rotation der Reinigungseinrichtung 2 in Verfahrrichtung r des Reinigungsgerätes 1 wird Schmutz von der zu reinigenden Fläche gelöst und auf das Endlosreinigungselement 3 übertragen. Figure 2 shows a detailed view of the first roller part 4 of the cleaning device 2. The first roller part 4 is shown explosively with regard to its various jackets. The first roller part 4 is basically designed as a cylindrical hollow body closed on the end face, the front end closure not being shown for better illustration is. Alternatively, the first roller part 4 can also be designed as a solid body. The first roller part 4 is surrounded by a sponge body 11 arranged in a rotationally fixed manner thereon. The sponge body 11 is open-pored and has the ability to temporarily store liquid. The sponge body 11 is at least partially covered by the endless cleaning element 3, which connects the first roller part 4 to the second roller part 5. The endless cleaning element 3 is designed here as a microfiber cloth. In contrast to the sponge body 11, this is rotatably arranged within the cleaning device 2, so that the portion of the endless cleaning element 3 which is in contact with the sponge body 11 changes in a circulating manner. As soon as liquid is applied to the sponge body 11 and / or the endless cleaning element 3, the cleaning device 2 releases liquid onto the surface to be cleaned under pressure, which is caused by a displacement of the cleaning device 1 on the surface to be cleaned. This results in an escape of liquid in the area of the wiping edge of the first roller part 4. The liquid is squeezed out of the sponge body 11 and / or the endless cleaning element 3 and applied to the surface to be cleaned. As the cleaning device 2 rotates further in the direction of travel r of the cleaning device 1, dirt is loosened from the surface to be cleaned and transferred to the endless cleaning element 3.

Figur 3 zeigt eine erste Ausführungsform einer erfindungsgemäßen Reinigungseinrichtung 2. Die Reinigungseinrichtung 2 weist einen ersten Walzenteil 4 sowie einen zweiten Walzenteil 5 auf. Beide Walzenteile 4, 5 sind als zylindrische Walzenteile 4, 5 ausgebildet, welche einen über ihren Umfang konstanten Krümmungsradius r1, r2 aufweisen. Der ersten Walzenteil 4 weist dabei einen Krümmungsradius r1 auf, welcher in allen Walzenteilbereichen 6 gleichgroß ist. Das zweite Walzenteil 5 weist ebenfalls in allen Walzenteilbereichen 7 einen gleichgroßen Krümmungsradius r2 auf. Der Krümmungsradius r1 des ersten Walzenteils 4 ist dabei ungefähr dreimal so groß wie der Krümmungsradius r2 des zweiten Walzenteils 5. Sowohl der erste Walzenteil 4 als auch der zweite Walzenteil 5 sind rotierbar um ihre jeweilige Drehachse x gelagert. Über die Walzenteilbereiche 6, 7 der Walzenteile 4, 5 ist das Endlosreinigungselement 3 gelegt, wobei die Reinigungseinrichtung 2 insgesamt einen Zugmitteltrieb bildet, in welchem das erste Walzenteil 4 mittels eines Elektromotors aktiv antreibbar ist und das zweite Walzenteil 5 durch die Drehmomentübertragung von dem ersten Walzenteil 4 auf das zweite Walzenteil 5 passiv mitrotiert. Durch die Rotation des ersten Walzenteils 4 um die Drehachse x wird das Endlosreinigungselement 3 relativ zu der Reinigungseinrichtung 2 verlagert, wodurch bei einer Einwirkung der Reinigungseinrichtung 2 auf die zu reinigende Fläche stets ein anderer Walzenteilbereich 6 des ersten Walzenteils 4 auf der zu reinigenden Fläche liegt. Durch die Rotation des ersten Walzenteils 4 wirkt eine Zentrifugalkraft auf die Flüssigkeit, welche in diesem Bereich in bzw. auf dem Endlosreinigungselement 3 gespeichert ist. Aufgrund des Durchmessers r1 des ersten Walzenteils 4 ist die auf die Flüssigkeit wirkende Zentrifugalkraft (bei einer definierten Rotationsgeschwindigkeit ω) jedoch nicht groß genug, um die Schmutzflüssigkeit aus dem Endlosreinigungselement 3 abzuschleudern. Durch die fortlaufende Förderung des Endlosreinigungselementes 3 von dem ersten Walzenteil 4 zu dem zweiten Walzenteil 5 und wieder zurück gelangt der zuvor an dem ersten Walzenteil 4 anliegende Bereich des Endlosreinigungselementes 3 in den Bereich des zweiten Walzenteils 5, welcher den kleineren Krümmungsradius r2 aufweist. Aufgrund dieses geringeren Krümmungsradius r2 erhöht sich die in dem Bereich des zweiten Walzenteils 5 auf die Schmutzflüssigkeit wirkende Zentrifugalkraft, so dass die Flüssigkeit in dem entsprechenden Bereich des Endlosreinigungselementes 3 abgeschleudert werden kann. Vorteilhaft ist zum Auffangen der abgeschleuderten Schmutzflüssigkeit ein entsprechender Gehäuseteil innerhalb des Reinigungsgerätes 1 vorgesehen, so dass der Nutzer nicht mit der Schmutzflüssigkeit in Kontakt gelangt und ebenfalls auch keine Schmutzflüssigkeit auf die zu reinigende Fläche tropfen kann. Figure 3 shows a first embodiment of a cleaning device 2 according to the invention. The cleaning device 2 has a first roller part 4 and a second roller part 5. Both roller parts 4, 5 are designed as cylindrical roller parts 4, 5, which have a radius of curvature r 1 , r 2 that is constant over their circumference. The first roller part 4 has a radius of curvature r 1 which is the same size in all the roller part regions 6. The second roller part 5 likewise has an equally large radius of curvature r 2 in all the roller part regions 7. The radius of curvature r 1 des the first roller part 4 is approximately three times as large as the radius of curvature r 2 of the second roller part 5. Both the first roller part 4 and the second roller part 5 are rotatably mounted about their respective axis of rotation x. The endless cleaning element 3 is placed over the roller partial areas 6, 7 of the roller parts 4, 5, the cleaning device 2 overall forming a traction mechanism drive in which the first roller part 4 can be actively driven by means of an electric motor and the second roller part 5 by the torque transmission from the first roller part 4 passively rotates on the second roller part 5. As a result of the rotation of the first roller part 4 about the axis of rotation x, the endless cleaning element 3 is displaced relative to the cleaning device 2, so that when the cleaning device 2 acts on the surface to be cleaned, another roller part region 6 of the first roller part 4 is always on the surface to be cleaned. Due to the rotation of the first roller part 4, a centrifugal force acts on the liquid, which is stored in this area in or on the endless cleaning element 3. Due to the diameter r 1 of the first roller part 4, however, the centrifugal force acting on the liquid (at a defined rotational speed ω) is not large enough to throw off the dirty liquid from the endless cleaning element 3. As a result of the continuous conveying of the endless cleaning element 3 from the first roller part 4 to the second roller part 5 and back again, the region of the endless cleaning element 3 previously in contact with the first roller part 4 reaches the region of the second roller part 5 which has the smaller radius of curvature r 2 . Because of this smaller radius of curvature r 2 , the centrifugal force acting on the dirty liquid in the area of the second roller part 5 increases, so that the liquid can be thrown off in the corresponding area of the endless cleaning element 3. A corresponding housing part within the cleaning device 1 is advantageously provided for collecting the thrown off dirty liquid, so that the user does not come into contact with the dirty liquid reaches and also no dirty liquid can drip onto the surface to be cleaned.

Die Figuren 4 und 5 zeigen eine zweite Ausführungsform einer erfindungsgemäßen Reinigungseinrichtung 2, bei welcher der zweite Walzenteil 5 tropfenförmig ausgebildet ist. Dadurch liegt das Endlosreinigungselement 3 bei fortschreitender Förderung mal an der Spitze der Tropfenform an, welche einen zu dem Krümmungsradius r1 des ersten Walzenteils 4 geringeren Krümmungsradius r2 aufweist, und mal an dem gegenüberliegenden Teilbereich der Tropfenform, welcher einen Krümmungsradius r1 aufweist, der mit dem Krümmungsradius r1 des ersten Walzenteils 4 übereinstimmt. Durch diese Ausgestaltung wird die in dem Endlosreinigungselement 3 gespeicherte Flüssigkeit nicht kontinuierlich im Bereich des zweiten Walzenteils 5 abgeschleudert, sondern nur dann, wenn das Endlosreinigungselement 3 gerade an der Spitze der Tropfenform mit dem Krümmungsradius r2 anliegt (siehe Figur 5). Damit das Endlosreinigungselement 3 dabei stets in gespanntem Zustand an dem ersten Walzenteil 4 und dem zweiten Walzenteil 5 anliegt, weist das zweite Walzenteil 5 eine Spanneinrichtung 8 auf, welche das zweite Walzenteil 5 relativ zu seiner Drehachse x mit einer Federkraft beaufschlagt. Die Spanneinrichtung 8 weist eine Feder auf, deren Rückstellkraft das zweite Walzenteil 5 von der Drehachse x in Richtung des Endlosreinigungselementes 3 zu verlagern sucht, wobei das Endlosreinigungselement 3 stets gespannt bleibt, unabhängig von der aktuellen Orientierung der Tropfenform.The Figures 4 and 5 show a second embodiment of a cleaning device 2 according to the invention, in which the second roller part 5 is drop-shaped. As a result, as the conveyance progresses, the endless cleaning element 3 lies against the tip of the drop shape, which has a radius of curvature r 2 that is smaller than the radius of curvature r 1 of the first roller part 4, and sometimes against the opposite partial area of the drop shape, which has a radius of curvature r1 that also corresponds to corresponds to the radius of curvature r1 of the first roller part 4. As a result of this configuration, the liquid stored in the endless cleaning element 3 is not continuously thrown off in the region of the second roller part 5, but only when the endless cleaning element 3 just lies against the tip of the drop shape with the radius of curvature r 2 (see Figure 5 ). So that the endless cleaning element 3 always bears against the first roller part 4 and the second roller part 5 in the tensioned state, the second roller part 5 has a tensioning device 8 which acts on the second roller part 5 with a spring force relative to its axis of rotation x. The tensioning device 8 has a spring, the restoring force of which the second roller part 5 attempts to shift from the axis of rotation x in the direction of the endless cleaning element 3, the endless cleaning element 3 always remaining tensioned, regardless of the current orientation of the drop shape.

Die in den Figuren 3 bzw. 4 und 5 gezeigten Ausführungsformen der Erfindung stellen nur Ausführungsbeispiele dar. Selbstverständlich kann die Reinigungseinrichtung 2 auch anders ausgebildete Walzenteile 4, 5 aufweisen. Beispielsweise können die Walzenteile 4, 5 als einteilige Walze rotationsfest miteinander verbunden sein. Die Walzenteile 4, 5 bilden dabei vorteilhaft die Form eines Tropfens (ähnlich Figur 4 und 5), so dass einerseits ein größerer Krümmungsradius r1 und andererseits ein dazu kleinerer Krümmungsradius r2 bereitgestellt wird. Das Endlosreinigungselement 3 kann dabei mittels eines Elektromotors über die Oberfläche der Walzenteile 4, 5 gezogen werden, so dass eine Reibkraft zwischen dem Endlosreinigungselement 3 und den Walzenteilen 4, 5 entsteht.The in the Figures 3 4 and 5 shown embodiments of the invention are only exemplary embodiments. Of course, the cleaning device 2 can also have differently shaped roller parts 4, 5. For example, the roller parts 4, 5 can be connected to one another in a rotationally fixed manner as a one-piece roller. The roller parts 4, 5 advantageously form the Shape of a drop (similar Figures 4 and 5 ), so that on the one hand a larger radius of curvature r 1 and on the other hand a smaller radius of curvature r 2 is provided. The endless cleaning element 3 can be pulled over the surface of the roller parts 4, 5 by means of an electric motor, so that a frictional force arises between the endless cleaning element 3 and the roller parts 4, 5.

Liste der BezugszeichenList of reference numbers

11
Reinigungsgerätcleaner
22
Reinigungseinrichtungcleaning device
33
EndlosreinigungselementEndless cleaning element
44
erstes Walzenteilfirst roller part
55
zweites Walzenteilsecond roller part
66
WalzenteilbereichRolling portion
77
WalzenteilbereichRolling portion
88th
Spanneinrichtungtensioning device
99
Vorsatzgerätheader
1010
Einfüllstutzenfiller pipe
1111
Schwammkörpersponge body
rr
Verfahrrichtungtraversing
xx
Drehachseaxis of rotation
ωω
Rotationsgeschwindigkeitrotation speed
r1 r 1
Krümmungsradiusradius of curvature
r2 r 2
Krümmungsradiusradius of curvature

Claims (9)

  1. A cleaning device (1), in particular a floor cleaning device, with a cleaning unit (2) at least partially covered by an endless cleaning element (3), which while acting on a surface to be cleaned can rotate continuously relative to the surface to be cleaned, wherein the cleaning unit (2) has at least one first roller part (4) that can be placed on the surface to be cleaned and a second roller part (5), wherein a radius of curvature (r1) for a roller subsection (6) of the first roller part (4) is different from a radius of curvature (r2) for a roller subsection (7) of the second roller part (5), characterized in that at least one roller part (4, 5) is non-rotatably arranged inside of the cleaning unit (2).
  2. The cleaning device (1) according to claim 1, characterized in that at least one roller part (4, 5) is rotatably arranged inside of the cleaning unit (2).
  3. The cleaning device (1) according to claim 1 or 2, characterized in that the cleaning unit (2) is designed as a traction mechanism drive, wherein the roller parts (4, 5) are shafts spaced apart from each other, which are connected with each other by the endless cleaning element (3) so as to transmit torque.
  4. The cleaning device (1) according to one of the preceding claims, characterized in that the roller parts (4, 5) are non-rotatably, in particular integrally, joined together.
  5. The cleaning device (1) according to one of the preceding claims, characterized in that the endless cleaning element (3) can be displaced relative to the cleaning unit (2), in particular conveyed by means of at least one motor-driven roller part (4, 5).
  6. The cleaning device (1) according to one of the preceding claims, characterized in that the endless cleaning element (3) is stretched over the roller parts (4, 5), wherein the cleaning unit (2) in particular has a tensioning device (8) that exerts a spring force on the endless cleaning element (3).
  7. The cleaning device (1) according to one of the preceding claims, characterized in that the radius of curvature (r1) for the first roller part (4) is two to twenty times, in particular ten to fifteen times, larger than the radius of curvature (r2) for the second roller part (5).
  8. The cleaning device (1) according to one of the preceding claims, characterized in that the roller part (4, 5) is round or drop-shaped.
  9. The cleaning device (1) according to one of the preceding claims, characterized in that the second roller part (5) has at least one action element that mechanically acts on the endless cleaning element (3) to clean the endless cleaning element (3).
EP16727983.5A 2015-06-22 2016-06-01 Cleaning tool having an impact on the surface to be cleaned Active EP3310235B1 (en)

Applications Claiming Priority (2)

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DE102015109952.7A DE102015109952A1 (en) 2015-06-22 2015-06-22 Cleaning device for acting on a surface to be cleaned
PCT/EP2016/062357 WO2016206933A1 (en) 2015-06-22 2016-06-01 Cleaning device for acting upon a surface to be cleaned

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EP3310235A1 EP3310235A1 (en) 2018-04-25
EP3310235B1 true EP3310235B1 (en) 2019-12-25

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US (1) US10646092B2 (en)
EP (1) EP3310235B1 (en)
JP (1) JP2018518259A (en)
CN (1) CN107750138B (en)
DE (1) DE102015109952A1 (en)
ES (1) ES2765979T3 (en)
SG (1) SG11201709637XA (en)
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WO (1) WO2016206933A1 (en)

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TWI660275B (en) * 2018-06-27 2019-05-21 廣達電腦股份有限公司 Methods and systems of distributing task areas for cleaning devices, and cleaning devices
CN111035329B (en) * 2018-10-12 2021-08-03 漳州灿坤实业有限公司 Automatic cleaning device
CN112244487B (en) * 2020-10-21 2021-09-14 温州职业技术学院 Computer lecture table based on information technology
CN116807315A (en) * 2021-12-20 2023-09-29 苏州威摩尔智能科技有限公司 Cleaning assembly of big and small roller structure and cleaning equipment using same

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US2953798A (en) * 1956-05-28 1960-09-27 Gen Electric Surface treating machine
JPS5545451A (en) * 1978-09-27 1980-03-31 Watanabe Asao Cleaner
US4926515A (en) * 1987-03-03 1990-05-22 Lynn William R Improved mopping system
CA2381200A1 (en) * 2000-06-12 2001-12-20 E.I. Du Pont De Nemours And Company Apparatus having a belt agitator for agitating a cleaning agent into a carpet
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
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US20180177375A1 (en) 2018-06-28
SG11201709637XA (en) 2017-12-28
CN107750138B (en) 2020-06-30
US10646092B2 (en) 2020-05-12
JP2018518259A (en) 2018-07-12
CN107750138A (en) 2018-03-02
TW201707633A (en) 2017-03-01
WO2016206933A1 (en) 2016-12-29
EP3310235A1 (en) 2018-04-25
ES2765979T3 (en) 2020-06-11
DE102015109952A1 (en) 2016-12-22

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