EP1913856B1 - Compact suction cleaning device for autonomous cleaning of floor coverings - Google Patents

Compact suction cleaning device for autonomous cleaning of floor coverings Download PDF

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Publication number
EP1913856B1
EP1913856B1 EP06022038A EP06022038A EP1913856B1 EP 1913856 B1 EP1913856 B1 EP 1913856B1 EP 06022038 A EP06022038 A EP 06022038A EP 06022038 A EP06022038 A EP 06022038A EP 1913856 B1 EP1913856 B1 EP 1913856B1
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EP
European Patent Office
Prior art keywords
suction
cleaning device
suction cleaning
maximum
cleaning
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.)
Revoked
Application number
EP06022038A
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German (de)
French (fr)
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EP1913856A1 (en
Inventor
Dieter Kaffenberger
Horst Dilger
Klaus-Dieter Riehl
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Wessel Werk GmbH
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Wessel Werk GmbH
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Application filed by Wessel Werk GmbH filed Critical Wessel Werk GmbH
Priority to AT06022038T priority Critical patent/ATE517570T1/en
Priority to EP06022038A priority patent/EP1913856B1/en
Priority to US11/906,515 priority patent/US20080222837A1/en
Priority to CN2007101818671A priority patent/CN101164484B/en
Publication of EP1913856A1 publication Critical patent/EP1913856A1/en
Application granted granted Critical
Publication of EP1913856B1 publication Critical patent/EP1913856B1/en
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    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2852—Elements for displacement of the vacuum cleaner or the accessories therefor, e.g. wheels, casters or nozzles
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/22—Mountings for motor fan assemblies
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • 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 compact vacuum cleaning device for the self-cleaning of smooth and textile floor coverings, especially in the private living area, with a housing, a suction mouth on the underside of the housing, arranged in a roll chamber cleaning roller, a dust collector, a suction fan, an electric traction drive, an electronic control unit and a power source, wherein the device height of the vacuum cleaning device is less than 180 mm.
  • the height of the device results from the ground clearance given by the travel drive and the dimensions of the housing which accommodates the dust catcher, the suction fan, the travel drive, the cleaning roller, the control electronics and the power source.
  • Antennas and any projecting fins intended to prevent driving under low furniture are not to be considered when determining the height of the unit.
  • Saugquels expert with the described features are also referred to as vacuum robots.
  • Compact Saugmentsetti with the features described above are from the document EP 0 803 224 B1 as well as from the publication WO 2006/089307 A2 and known in practice in various embodiments.
  • the known embodiments have an accumulator as a power source, which is charged manually or automatically during the breaks in a charging station.
  • the self-sufficient vacuum cleaning devices are controlled in a cleaning operation of the control electronics, which acts on the electronic drive.
  • various touch sensors or non-contact sensors may be provided. It is also known to store the distance covered in the form of a map in the control electronics, whereby a nationwide cleaning can be achieved in as short a time as possible.
  • the use of self-sufficient, self-propelled vacuum cleaning device is intended to be a manual Cleaning with a conventional vacuum cleaner superfluous.
  • the vacuum cleaning device must not only have a sufficient cleaning effect on large areas of a hard floor but also on textile floor coverings. Under furniture, which stands on feet, dust and dirt can accumulate. To avoid this dust and dirt having to be removed manually, the suction cleaning devices must have a low height, which makes it possible to undercut such pieces of furniture.
  • self-sufficient, self-propelled Saug lenderssettin the available electrical energy is limited due to the integrated power source. In order to keep energy consumption low, in the known vacuum cleaning devices, the cleaning effect is largely determined by the cleaning roller, which is typically designed as a brush roller.
  • the stream of air flowing through the suction mouth is small and ensures in the cleaning operation within the surface of the suction mouth only the suction of dirt and dust, which is taken up or loosened by the cleaning roller.
  • the known Saug lenders mar are suitable to remove coarse, loose particles, such as crumbs and lint from smooth floor coverings.
  • the cleaning effect of textile floor coverings is insufficient. In many cases, such an additional, unwanted manual cleaning of textile floor coverings with a conventional vacuum cleaner is required.
  • the invention has for its object to provide a self-sufficient, self-propelled Saugquess réelle, which in a compact design an improved cleaning effect, in particular of textile floor coverings has.
  • the object is achieved in that the maximum air flow q max that enters through the suction port through which the dust collector is routed and that the vacuum cleaner leaves through the suction fan is greater than 15 l / s (liters per second).
  • the air flow in the sense of the invention designates the volume of the suction air which enters the suction port per second through the dust collecting container and leaves the vacuum cleaning device through the suction fan.
  • the Saubfang consideringer may be equipped with a bag and / or a filter.
  • the "maximum air flow" q max is defined as that air flow which, during operation of the vacuum cleaning device, is adjusted with an exposed suction mouth, for example when the vacuum cleaning device is lifted from a floor to be cleaned.
  • the vacuum cleaning device is preferably designed so that sets a maximum pressure reduction of more than 2 kPa (kilopascal), preferably a maximum pressure reduction of at least 4 kPa at the suction mouth.
  • the "maximum pressure reduction” (maximum negative pressure) is determined with completely closed suction mouth.
  • the temptation devices are also described in the European standard "EN 60312: 1998 + A1: 2000".
  • the maximum air flow q max and the maximum pressure reduction h max represent the limit values of the possible suction parameters.
  • a value for the air flow q and an associated value for the negative pressure h a with usually both a large air flow for transporting the dirt particles and the greatest possible negative pressure to ensure a good depth effect sought becomes.
  • the suction capacity can be determined based on the suction power P 2 as a product of air flow q and negative pressure h for various operating parameters.
  • suction power in the context of the invention in accordance with the European standard "EN 60312: 1998 + A1: 2000" refers to the performance of the flowing suction air and is therefore also referred to in practice as air power.
  • value pair can be determined from the suction air flow and pressure reduction, in which the suction power is maximum.
  • the maximum suction power P 2 , max is greater than 10 watts.
  • the Saug lenderss réelle has a footprint between 1000 cm 2 and 1500 cm 2 .
  • the base area denotes the area which is covered by the vacuum cleaning tool in the case of a vertical projection.
  • niches for the vacuum cleaning device can be achieved, whereby a largely complete cleaning is made possible even in hard to reach areas.
  • the base surface is expediently round or oval.
  • the Saugtherapies choir expediently has a volume of 15 to 25 liters, with a range of 17 to 20 liters is preferred.
  • the volume is defined as the space enclosed by the housing bottom and an upper housing part of the housing, including the roller space.
  • Vacuum cleaning device along the path of the air flow seals are provided between the individual components.
  • the proportion of false air, which is not sucked through the suction mouth but through cracks and openings between the components can be minimized.
  • the flow cross sections and transitions can also be optimized from a fluidic point of view to avoid pressure losses along the path of the suction air.
  • the inventively provided cleaning roller is arranged in an associated roller space, wherein the suction mouth can be arranged at the bottom of the housing at a distance from the roller.
  • the suction mouth is arranged on the underside of the roll chamber, wherein the suction air is guided from the roll chamber to the dust collecting container.
  • the cleaning roller may be driven electrically or by an air turbine and contributes through a direct contact of the roller surface with the floor covering for cleaning.
  • the cleaning roller is preferably mounted resiliently in the housing in the vertical direction.
  • the roller chamber with suction mouth and cleaning roller is mounted as a whole in the vertical direction resiliently in the housing.
  • the roller space can rest in sections with its underside or with rollers and / or sliding surfaces on the floor.
  • the optimum pressure of the cleaning roller and from a fluidic view advantageous distance between the suction port and the surface to be cleaned can be achieved by a corresponding spring force of the resilient mounting.
  • the cleaning roller can, for example be designed as a lamellar roller with soft, flexible lamellae made of plastic or as a brush roller, wherein preferably a soft bristles is provided, which leads to a low friction between cleaning roller and floor covering.
  • the vacuum cleaning device according to the invention is characterized by a good cleaning effect on various floor coverings and is also suitable due to the large air flow according to the invention for receiving large amounts of dirt in a short time.
  • the volume of the dust collector is greater than 1 liter.
  • the dust collector and the suction fan can be seen in the longitudinal direction next to each other at about the same height, wherein the suction fan is connected laterally to the dust collector.
  • the current source for example in the form of rechargeable batteries, can also be adapted in shape to the outer contour of the housing.
  • the components of the vacuum cleaning device are preferably matched in shape and arranged as closely packed as possible, for example, drive motors for the drive or the cleaning roller as well as the control electronics can be arranged in narrow spaces between the other components.
  • Fig. 1 shows a compact Saugquess réelle 1 for the autonomous cleaning of smooth and textile floor coverings, especially in the private living area with a housing 2, a suction mouth 3, which is arranged on the underside of a roll chamber 4, arranged in the roll chamber 4 cleaning roller 5, a dust collector. 6 , a suction fan 7, an electric drive 8, an electronic control unit 9 and a power source 10 in the form of two batteries 11.
  • the dust collector 6 may be equipped with an air-permeable bag and the outlet side with a filter.
  • the various components are arranged closely packed in the housing 2 for optimum space utilization.
  • the roll chamber 4 is resiliently mounted in the housing 2, wherein the arranged in the roll chamber 4 and executed as a brush roller cleaning roller 5 is driven by a drive belt 12 by an electric motor 13.
  • the suction fan 7 is connected via a lateral opening 15 to the dust collector 6, wherein the suction fan 7 sucks the suction air axially and radially, for example obliquely upwards, blows.
  • the traction drive 8 has drive wheels 16, each with an associated and controlled by the control electronics 9 drive motor 17, wherein by a separate control of the drive motors 17 even in the narrowest space exact driving movements are possible.
  • the maximum air flow q max with an exposed suction port 3 is more than 15 l / s.
  • the maximum negative pressure h max when the suction mouth 3 is closed is greater than 2 kPa and is preferably at least 4 kPa.
  • the maximum suction power suction power P 2 , max is always greater than 10 W and is preferably in the range of 15 to 25 W or more.
  • Fig. 2 shows a compact Saugquess réelle 1 according to the invention in side view.
  • the device height z is less than 180 mm, preferably less than 150 mm.
  • the device height z results from the ground clearance given by the travel drive and the dimensions of the housing 2, which accommodates the dust collector 6, the suction fan 7, the drive 8, the cleaning roller 5, the control electronics 9 and the power source 10. Additional structures or attachments, such as a sensor or an antenna 18, which are yielding under an obstacle driving or can bend resiliently, are not taken into account in the determination of the device height z.
  • At the top of the housing can also be arranged protruding fins that prevent underrunning of low furniture whose ground clearance is not or only slightly larger than the height of the device Saugquels advocatess.
  • the dust collector 6 and the suction fan 7 are arranged side by side and extend almost over the height of the device Saug lenderss confuses 1, whereby an optimal use of space can be achieved.
  • the compact dimensions of the dust collector 6 can be greater than 1 liter, preferably greater than 1.5 liters, executed.
  • the vacuum cleaner has a volume between 15 and 25 liters, with a range of 17 to 20 liters being preferred.
  • the volume is defined as the space enclosed by the housing bottom and an upper housing part including the roller space.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

The compact vacuum cleaner (1) is for the self-sufficient cleaning of smooth and textile floor coverings, wherein the maximum suction air flow, which enters through the suction mouth (3) and is guided through the dust collecting container (6) and leaves through the suction fan (7), is greater than 15 liters per second, and the maximum suction power is greater than 10 watts. The height of the appliance is less than 150 mm, and the maximum vacuum pressure is greater than 2 kilopascals, preferably at least 4 kilopascals.

Description

Die Erfindung betrifft ein kompaktes Saugreinigungsgerät für die autarke Reinigung von glatten und textilen Bodenbelägen, insbesondere im privaten Wohnbereich, mit einem Gehäuse, einem Saugmund an der Unterseite des Gehäuses, einer in einem Walzenraum angeordneten Reinigungswalze, einem Staubfangbehälter, einem Sauggebläse, einem elektrischen Fahrantrieb, einer Steuerelektronik und einer Stromquelle, wobei die Gerätehöhe des Saugreinigungsgerätes kleiner als 180 mm ist. Die Gerätehöhe ergibt sich aus dem durch den Fahrantrieb vorgegebenen Bodenabstand und den Abmessungen des Gehäuses, welches den Staubfangbehälter, das Sauggebläse, den Fahrantrieb, die Reinigungswalze, die Steuerelektronik und die Stromquelle aufnimmt. Antennen und etwaige vorspringende Flossen, die das Unterfahren niedriger Möbelstücke verhindern sollen, sind bei der Ermittlung der Gerätehöhe nicht zu berücksichtigen. - Saugreinigungsgeräte mit den beschriebenen Merkmalen werden auch als Saugroboter bezeichnet.The invention relates to a compact vacuum cleaning device for the self-cleaning of smooth and textile floor coverings, especially in the private living area, with a housing, a suction mouth on the underside of the housing, arranged in a roll chamber cleaning roller, a dust collector, a suction fan, an electric traction drive, an electronic control unit and a power source, wherein the device height of the vacuum cleaning device is less than 180 mm. The height of the device results from the ground clearance given by the travel drive and the dimensions of the housing which accommodates the dust catcher, the suction fan, the travel drive, the cleaning roller, the control electronics and the power source. Antennas and any projecting fins intended to prevent driving under low furniture are not to be considered when determining the height of the unit. - Saugreinigungsgeräte with the described features are also referred to as vacuum robots.

Kompakte Saugreinigungsgeräte mit den eingangs beschriebenen Merkmalen sind aus der Druckschrift EP 0 803 224 B1 sowie aus der Druckschrift WO 2006/089307 A2 und in verschiedenen Ausführungen aus der Praxis bekannt. Die bekannten Ausführungen weisen einen Akkumulator als Stromquelle auf, der manuell oder automatisch während der Betriebspausen in einer Ladestation aufgeladen wird. Die autark arbeitenden Saugreinigungsgeräte werden bei einem Reinigungsbetrieb von der Steuerelektronik, die auf den elektronischen Fahrantrieb wirkt, gesteuert. Zur Erkennung von Hindernissen und Wänden können verschiedene Berührungssensoren oder berührungslos arbeitende Sensoren vorgesehen sein. Es ist auch bekannt, den zurückgelegten Weg in Form einer Karte in der Steuerelektronik abzuspeichern, wodurch eine flächendeckende Reinigung in einer möglichst kurzen Zeit erreicht werden kann. Der Einsatz des autark arbeitenden, selbstfahrenden Saugreinigungsgerätes soll dabei eine manuelle Reinigung mit einem herkömmlichen Staubsauger überflüssig machen. Um diesem Anspruch gerecht zu werden und dem Benutzer einen tatsächlichen Mehrwert zu bieten, muss das Saugreinigungsgerät nicht nur auf großen Flächen eines Hartbodens sondern insbesondere auch auf textilen Bodenbelägen eine ausreichende Reinigungswirkung aufweisen. Unter Möbelstücken, die auf Füßen stehen, können sich Staub und Schmutz sammeln. Um zu vermeiden, dass dieser Staub und Schmutz manuell entfernt werden muss, müssen die Saugreinigungsgeräte eine geringe Höhe aufweisen, die es ermöglicht, solche Möbelstücke zu unterfahren. Bei autarken, selbstfahrenden Saugreinigungsgeräten ist die zur Verfügung stehende elektrische Energie aufgrund der integrierten Stromquelle begrenzt. Um den Energieverbrauch gering zu halten, wird bei den bekannten Saugreinigungsvorrichtungen die Reinigungswirkung maßgeblich von der typischerweise als Bürstenwalze ausgeführten Reinigungswalze bestimmt. Der durch den Saugmund strömende Luftstrom ist dabei gering und gewährleistet bei dem Reinigungsbetrieb innerhalb der Fläche des Saugmundes lediglich das Absaugen von Schmutz und Staub, der von der Reinigungswalze aufgenommen oder gelockert wird. Die bekannten Saugreinigungsgeräte sind dabei geeignet, um grobe, lose Partikel, wie Krümel und Fusseln von glatten Bodenbelägen zu entfernen. Die Reinigungswirkung von textilen Bodenbelägen ist dagegen unzureichend. In vielen Fällen wird so eine zusätzliche, unerwünschte manuelle Reinigung textiler Bodenbeläge mit einem herkömmlichen Staubsauger erforderlich.Compact Saugreinigungsgeräte with the features described above are from the document EP 0 803 224 B1 as well as from the publication WO 2006/089307 A2 and known in practice in various embodiments. The known embodiments have an accumulator as a power source, which is charged manually or automatically during the breaks in a charging station. The self-sufficient vacuum cleaning devices are controlled in a cleaning operation of the control electronics, which acts on the electronic drive. For detection of obstacles and walls, various touch sensors or non-contact sensors may be provided. It is also known to store the distance covered in the form of a map in the control electronics, whereby a nationwide cleaning can be achieved in as short a time as possible. The use of self-sufficient, self-propelled vacuum cleaning device is intended to be a manual Cleaning with a conventional vacuum cleaner superfluous. To meet this requirement and to offer the user an actual added value, the vacuum cleaning device must not only have a sufficient cleaning effect on large areas of a hard floor but also on textile floor coverings. Under furniture, which stands on feet, dust and dirt can accumulate. To avoid this dust and dirt having to be removed manually, the suction cleaning devices must have a low height, which makes it possible to undercut such pieces of furniture. In self-sufficient, self-propelled Saugreinigungsgeräten the available electrical energy is limited due to the integrated power source. In order to keep energy consumption low, in the known vacuum cleaning devices, the cleaning effect is largely determined by the cleaning roller, which is typically designed as a brush roller. The stream of air flowing through the suction mouth is small and ensures in the cleaning operation within the surface of the suction mouth only the suction of dirt and dust, which is taken up or loosened by the cleaning roller. The known Saugreinigungsgeräte are suitable to remove coarse, loose particles, such as crumbs and lint from smooth floor coverings. The cleaning effect of textile floor coverings, however, is insufficient. In many cases, such an additional, unwanted manual cleaning of textile floor coverings with a conventional vacuum cleaner is required.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, ein autark arbeitendes, selbstfahrendes Saugreinigungsgerät anzugeben, welches bei einem kompakten Aufbau eine verbesserte Reinigungswirkung, insbesondere von textilen Bodenbelägen, aufweist.Against this background, the invention has for its object to provide a self-sufficient, self-propelled Saugreinigungsgerät, which in a compact design an improved cleaning effect, in particular of textile floor coverings has.

Ausgehend von einem Saugreinigungsgerät mit den eingangs beschriebenen Merkmalen wird die Aufgabe erfindungsgemäß dadurch gelöst, dass der maximale Luftstrom qmax der durch den Saugmund eintritt, durch den Staubfangbehälter geführt wird und das Saugreinigungsgerät durch das Sauggebläse verlässt größer als 15 l/s (Liter pro Sekunde) ist. Der Luftstrom im Sinne der Erfindung bezeichnet das Volumen der Saugluft, welches pro Sekunde durch den Saugmund eintritt, durch den Staubfangbehälter geführt wird und das Saugreinigungsgerät durch das Sauggebläse verlässt. Der Saubfangbehälter kann mit einem Beutel und/oder einem Filter bestückt sein. Der "maximale Luftstrom" qmax ist als derjenige Luftstrom definiert, der sich beim Betrieb des Saugreinigungsgerätes mit einem freiliegenden Saugmund, beispielsweise wenn das Saugreinigungsgerät von einem zu reinigenden Boden abgehoben ist, einstellt. Dabei wird vorausgesetzt, dass der Staubfangbehälter unverschmutzt ist und ggf. mit einem fabrikneuen Staubbeutel sowie einem fabrikneuen Filter bestückt ist. Die Prüfbedingungen, die bei der Bestimmung des Luftstromes q in Litern pro Sekunde einzuhalten sind, ergeben sich wie auch die Prüfbedingungen zur Ermittlung der anderen Luftdaten des Saugreinigungswerkzeuges aus der europäischen Norm "EN 60312: 1998 + A1: 2000".Starting from a Saugreinigungsgerät with the features described above, the object is achieved in that the maximum air flow q max that enters through the suction port through which the dust collector is routed and that the vacuum cleaner leaves through the suction fan is greater than 15 l / s (liters per second). The air flow in the sense of the invention designates the volume of the suction air which enters the suction port per second through the dust collecting container and leaves the vacuum cleaning device through the suction fan. The Saubfangbehälter may be equipped with a bag and / or a filter. The "maximum air flow" q max is defined as that air flow which, during operation of the vacuum cleaning device, is adjusted with an exposed suction mouth, for example when the vacuum cleaning device is lifted from a floor to be cleaned. It is assumed that the dust collector is unpolluted and if necessary equipped with a brand new dust bag and a brand new filter. The test conditions to be followed in determining the air flow q in liters per second, as well as the test conditions for determining the other air data of the vacuum cleaning tool from the European standard "EN 60312: 1998 + A1: 2000".

Das Saugreinigungsgerät ist vorzugsweise so ausgelegt, dass sich am Saugmund eine maximale Druckabsenkung von mehr als 2 kPa (Kilopascal), vorzugsweise eine maximale Druckabsenkung von mindestens 4 kPa einstellt. Die "maximale Druckabsenkung" (maximaler Unterdruck) wird bei völlig verschlossenem Saugmund ermittelt. Die Versuchungsapparaturen sind ebenfalls in der europäischen Norm "EN 60312: 1998 + A1: 2000" beschrieben.The vacuum cleaning device is preferably designed so that sets a maximum pressure reduction of more than 2 kPa (kilopascal), preferably a maximum pressure reduction of at least 4 kPa at the suction mouth. The "maximum pressure reduction" (maximum negative pressure) is determined with completely closed suction mouth. The temptation devices are also described in the European standard "EN 60312: 1998 + A1: 2000".

Der maximale Luftstrom qmax und die maximale Druckabsenkung hmax stellen die Grenzwerte der möglichen Saugparameter dar. Bei dem üblichen Betrieb des Saugreinigungsgerätes stellt sich in Abhängigkeit vom Bodenbelag und vom Füllgrad des Staubfangbehälters einen Wert für den Luftstrom q und ein zugeordneter Wert für den Unterdruck h ein, wobei üblicherweise sowohl ein großer Luftstrom zum Transport der Schmutzpartikel als auch ein möglichst großer Unterdruck zur Gewährleistung einer guten Tiefenwirkung angestrebt wird. Das Saugvermögen kann dabei anhand der Saugleistung P2 als Produkt von Luftstrom q und Unterdruck h für verschiedene Betriebsparameter bestimmt werden. Der Begriff Saugleistung bezieht sich im Rahmen der Erfindung in Übereinstimmung mit der europäischen Norm "EN 60312: 1998 + A1: 2000" auf die Leistung der strömenden Saugluft und wird deshalb in der Praxis auch als Luftleistung bezeichnet. Durch Variation der Betriebsparameter kann dasjenige Wertepaar aus Saugluftstrom und Druckabsenkung ermittelt werden, bei dem die Saugleistung maximal ist. In der Erfindung ist vorgesehen, dass die maximale Saugleistung P2, max größer als 10 Watt, ist.The maximum air flow q max and the maximum pressure reduction h max represent the limit values of the possible suction parameters. In the usual operation of the vacuum cleaning device, depending on the floor covering and the degree of filling of the dust collector, a value for the air flow q and an associated value for the negative pressure h a, with usually both a large air flow for transporting the dirt particles and the greatest possible negative pressure to ensure a good depth effect sought becomes. The suction capacity can be determined based on the suction power P 2 as a product of air flow q and negative pressure h for various operating parameters. The term suction power in the context of the invention in accordance with the European standard "EN 60312: 1998 + A1: 2000" refers to the performance of the flowing suction air and is therefore also referred to in practice as air power. By varying the operating parameters that value pair can be determined from the suction air flow and pressure reduction, in which the suction power is maximum. In the invention, it is provided that the maximum suction power P 2 , max is greater than 10 watts.

Um das Saugreinigungsgerät im privaten Wohnbereich gut einsetzten zu können, wird eine niedrige Gerätehöhe und gleichzeitig eine kleine Grundfläche angestrebt. Vorzugsweise weist das Saugreinigungsgerät eine Grundfläche zwischen 1000 cm2 und 1500 cm2 auf. Im Rahmen der Erfindung bezeichnet die Grundfläche die Fläche, welche bei einer senkrechten Projektion von dem Saugreinigungswerkzeug abgedeckt ist. Durch eine kleine Grundfläche, insbesondere eine Grundfläche in dem angegebenen Bereich, sind auch Nischen für das Saugreinigungsgerät zu erreichen, wodurch auch in schwer zugänglichen Bereichen eine weitgehend vollständige Reinigung ermöglicht wird. Zum Zwecke einer guten Manövrierfähigkeit ist die Grundfläche zweckmäßig rund oder oval ausgebildet.In order to be able to use the vacuum cleaner in private living well, a low device height and at the same time a small footprint is sought. Preferably, the Saugreinigungsgerät has a footprint between 1000 cm 2 and 1500 cm 2 . In the context of the invention, the base area denotes the area which is covered by the vacuum cleaning tool in the case of a vertical projection. By a small footprint, in particular a base in the specified range, niches for the vacuum cleaning device can be achieved, whereby a largely complete cleaning is made possible even in hard to reach areas. For the purpose of good maneuverability, the base surface is expediently round or oval.

Das Saugreinigungsgerät weist zweckmäßig ein Volumen von 15 bis 25 Liter auf, wobei ein Bereich von 17 bis 20 Liter bevorzugt ist. Das Volumen ist definiert als der vom Gehäuseboden und einem Gehäuseoberteil des Gehäuses eingeschlossener Raum einschließlich des Walzenraums.The Saugreinigungsgerät expediently has a volume of 15 to 25 liters, with a range of 17 to 20 liters is preferred. The volume is defined as the space enclosed by the housing bottom and an upper housing part of the housing, including the roller space.

Um im Rahmen einer vorteilhaften Ausgestaltung der Erfindung eine weitere Verbesserung des Saugverhaltens zu erreichen, ist vorgesehen, dass im Saugreinigungsgerät entlang des Weges des Luftstromes Dichtungen zwischen den einzelnen Komponenten vorgesehen sind. Durch solche Dichtungen kann der Anteil an Falschluft, die nicht durch den Saugmund sondern durch Ritzen und Öffnungen zwischen den Komponenten angesaugt wird, minimiert werden. Im Rahmen der Erfindung können auch zur Vermeidung von Druckverlusten entlang des Weges der Saugluft die Strömungsquerschnitte und -übergänge aus strömungstechnischer Sicht optimiert sein.In order to achieve a further improvement of the suction behavior in the context of an advantageous embodiment of the invention, it is provided that in Vacuum cleaning device along the path of the air flow seals are provided between the individual components. By such seals, the proportion of false air, which is not sucked through the suction mouth but through cracks and openings between the components can be minimized. In the context of the invention, the flow cross sections and transitions can also be optimized from a fluidic point of view to avoid pressure losses along the path of the suction air.

Die erfindungsgemäß vorgesehene Reinigungswalze ist in einem zugeordneten Walzenraum angeordnet, wobei der Saugmund an der Unterseite des Gehäuses in einem Abstand zur Walze angeordnet sein kann. In einer bevorzugten Ausführung der Erfindung ist jedoch vorgesehen, dass der Saugmund an der Unterseite des Walzenraumes angeordnet ist, wobei die Saugluft von dem Walzenraum zu dem Staubfangbehälter geführt wird. Die Reinigungswalze kann elektrisch oder von einer Luftturbine angetrieben sein und trägt durch einen direkten Kontakt der Walzenoberfläche mit dem Bodenbelag zur Reinigung bei. Um auf unterschiedlichen Bodenbelägen einerseits einen Kontakt von Reinigungswalze und Bodenbelag zu gewährleisten und andererseits eine erhöhte Reibung zwischen Bodenbelag und Reinigungswalze zu vermeiden, ist die Reinigungswalze vorzugsweise in vertikaler Richtung federnd im Gehäuse gelagert. Alternativ dazu kann auch vorgesehen sein, dass der Walzenraum mit Saugmund und Reinigungswalze als Ganzes in vertikaler Richtung federnd in dem Gehäuse gelagert ist. Der Walzenraum kann abschnittsweise mit seiner Unterseite oder mit Rollen und/oder Gleitflächen auf dem Boden aufliegen. Sowohl bei einer federnd gelagerten Reinigungswalze als auch bei einem federnd gelagerten Walzenraum kann der optimale Andruck der Reinigungswalze und ein aus strömungstechnischer Sicht vorteilhafter Abstand zwischen dem Saugmund und der zu reinigenden Oberfläche durch eine entsprechende Federkraft der federnden Lagerung erreicht werden. Die Reinigungswalze kann beispielsweise als Lamellenwalze mit weichen, nachgiebigen Lamellen aus Kunststoff oder als Bürstenwalze ausgeführt sein, wobei vorzugsweise eine weiche Beborstung vorgesehen ist, die zu einer geringen Reibung zwischen Reinigungswalze und Bodenbelag führt.The inventively provided cleaning roller is arranged in an associated roller space, wherein the suction mouth can be arranged at the bottom of the housing at a distance from the roller. In a preferred embodiment of the invention, however, it is provided that the suction mouth is arranged on the underside of the roll chamber, wherein the suction air is guided from the roll chamber to the dust collecting container. The cleaning roller may be driven electrically or by an air turbine and contributes through a direct contact of the roller surface with the floor covering for cleaning. On the one hand to ensure contact of cleaning roller and floor covering on different floor coverings and on the other hand to avoid increased friction between floor covering and cleaning roller, the cleaning roller is preferably mounted resiliently in the housing in the vertical direction. Alternatively, it can also be provided that the roller chamber with suction mouth and cleaning roller is mounted as a whole in the vertical direction resiliently in the housing. The roller space can rest in sections with its underside or with rollers and / or sliding surfaces on the floor. Both in a spring-mounted cleaning roller as well as a spring-mounted roller chamber, the optimum pressure of the cleaning roller and from a fluidic view advantageous distance between the suction port and the surface to be cleaned can be achieved by a corresponding spring force of the resilient mounting. The cleaning roller can, for example be designed as a lamellar roller with soft, flexible lamellae made of plastic or as a brush roller, wherein preferably a soft bristles is provided, which leads to a low friction between cleaning roller and floor covering.

Das erfindungsgemäße Saugreinigungsgerät zeichnet sich durch eine gute Reinigungswirkung auf verschiedenen Bodenbelägen aus und ist auch aufgrund des erfindungsgemäß großen Luftstromes zur Aufnahme großer Schmutzmengen in einer geringen Zeit geeignet. Um den verbesserten Saugeigenschaften gerecht zu werden, ist vorzugsweise vorgesehen, dass das Volumen des Staubfangbehälters größer als 1 Liter ist. Durch eine effektive Ausnutzung des zur Verfügung stehenden Volumens kann eine solche Ausgestaltung auch in Kombination mit der zuvor beschriebenen kompakten Bauweise verwirklicht werden.The vacuum cleaning device according to the invention is characterized by a good cleaning effect on various floor coverings and is also suitable due to the large air flow according to the invention for receiving large amounts of dirt in a short time. In order to meet the improved suction properties, it is preferably provided that the volume of the dust collector is greater than 1 liter. By effectively utilizing the available volume, such a configuration can also be realized in combination with the previously described compact design.

Um eine kompakte Bauweise zu erreichen, können beispielsweise der Staubfangbehälter und das Sauggebläse in Längsrichtung gesehen nebeneinander auf etwa der gleichen Höhe angeordnet sein, wobei das Sauggebläse seitlich an den Staubfangbehälter angeschlossen ist. Zur Vermeidung von Totvolumina innerhalb des Gehäuses kann auch die Stromquelle, beispielsweise in Form von Akkumulatoren, in ihrer Form an die Außenkontur des Gehäuses angepasst sein. Des Weiteren sind die Bauteile des Saugreinigungsgerätes vorzugsweise in ihrer Form aufeinander abgestimmt und möglichst eng gepackt angeordnet, wobei beispielsweise Antriebsmotoren für den Fahrantrieb oder die Reinigungswalze wie auch die Steuerelektronik in schmalen Zwischenräumen zwischen den anderen Bauteilen angeordnet werden können.In order to achieve a compact design, for example, the dust collector and the suction fan can be seen in the longitudinal direction next to each other at about the same height, wherein the suction fan is connected laterally to the dust collector. To avoid dead volumes within the housing, the current source, for example in the form of rechargeable batteries, can also be adapted in shape to the outer contour of the housing. Furthermore, the components of the vacuum cleaning device are preferably matched in shape and arranged as closely packed as possible, for example, drive motors for the drive or the cleaning roller as well as the control electronics can be arranged in narrow spaces between the other components.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen schematisch:

Fig. 1
eine schematische Darstellung der Komponenten eines erfindungsgemäßen Saugreinigungsgerätes,
Fig. 2
eine schematische Seitenansicht eines erfindungsgemäßen Saugreinigungsgerätes.
In the following the invention will be explained with reference to a drawing showing only one embodiment. They show schematically:
Fig. 1
a schematic representation of the components of a Saugreinigungsgerätes invention,
Fig. 2
a schematic side view of a Saugreinigungsgerätes invention.

Fig. 1 zeigt ein kompaktes Saugreinigungsgerät 1 für die autarke Reinigung von glatten und textilen Bodenbelägen, insbesondere im privaten Wohnbereich mit einem Gehäuse 2, einem Saugmund 3, der an der Unterseite eines Walzenraumes 4 angeordnet ist, einer in dem Walzenraum 4 angeordneten Reinigungswalze 5, einem Staubfangbehälter 6, einem Sauggebläse 7, einem elektrischen Fahrantrieb 8, einer Steuerelektronik 9 und einer Stromquelle 10 in Form von zwei Akkumulatoren 11. Der Staubfangbehälter 6 kann mit einem luftdurchlässigen Beutel und auslassseitig mit einem Filter bestückt sein. Die verschiedenen Komponenten sind zur optimalen Raumausnutzung eng gepackt in dem Gehäuse 2 angeordnet. Der Walzenraum 4 ist in dem Gehäuse 2 federnd gelagert, wobei die in dem Walzenraum 4 angeordnete und als Bürstenwalze ausgeführte Reinigungswalze 5 über einen Antriebsriemen 12 von einem Elektromotor 13 angetrieben ist. Von dem Walzenraum 4 wird der durch den Saugmund 3 eintretende Luftstrom über eine kurze Verbindung 14 in den Staubfangbehälter 6 geführt. Das Sauggebläse 7 ist über eine seitliche Öffnung 15 an den Staubfangbehälter 6 angeschlossen, wobei das Sauggebläse 7 die Saugluft axial ansaugt und radial, beispielsweise schräg nach oben, ausbläst. Der Fahrantrieb 8 weist Antriebsräder 16 mit jeweils einem zugeordneten und von der Steuerelektronik 9 gesteuerten Antriebsmotor 17 auf, wobei durch eine getrennte Ansteuerung der Antriebsmotoren 17 auch auf engstem Raum exakte Fahrbewegungen möglich sind. Trotz der kompakten Bauweise des Saugreinigungsgerätes 1 mit einer Grundfläche A zwischen 1.000 cm2 und 1.500 cm2 zeichnet sich das Saugreinigungsgerät durch eine sehr gute Reinigungswirkung aus. Dazu trägt erfindungswesentlich bei, dass der maximale Luftstrom qmax bei einem freiliegenden Saugmund 3 mehr als 15 l/s beträgt. Der maximale Unterdruck hmax bei verschlossenem Saugmund 3 ist größer als 2 kPa und beträgt vorzugsweise mindestens 4 kPa. Die maximale Saugleistung Saugleistung P2, max ist stets größer als 10 W und liegt vorzugsweise im Bereich von 15 bis 25 W oder mehr. Fig. 1 shows a compact Saugreinigungsgerät 1 for the autonomous cleaning of smooth and textile floor coverings, especially in the private living area with a housing 2, a suction mouth 3, which is arranged on the underside of a roll chamber 4, arranged in the roll chamber 4 cleaning roller 5, a dust collector. 6 , a suction fan 7, an electric drive 8, an electronic control unit 9 and a power source 10 in the form of two batteries 11. The dust collector 6 may be equipped with an air-permeable bag and the outlet side with a filter. The various components are arranged closely packed in the housing 2 for optimum space utilization. The roll chamber 4 is resiliently mounted in the housing 2, wherein the arranged in the roll chamber 4 and executed as a brush roller cleaning roller 5 is driven by a drive belt 12 by an electric motor 13. From the roll chamber 4, the air stream entering through the suction mouth 3 is guided via a short connection 14 into the dust catching container 6. The suction fan 7 is connected via a lateral opening 15 to the dust collector 6, wherein the suction fan 7 sucks the suction air axially and radially, for example obliquely upwards, blows. The traction drive 8 has drive wheels 16, each with an associated and controlled by the control electronics 9 drive motor 17, wherein by a separate control of the drive motors 17 even in the narrowest space exact driving movements are possible. Despite the compact design of Saugreinigungsgerätes 1 with a base A between 1,000 cm 2 and 1,500 cm 2 , the vacuum cleaning device is characterized by a very good cleaning effect. Contributes essential to the invention that the maximum air flow q max with an exposed suction port 3 is more than 15 l / s. The maximum negative pressure h max when the suction mouth 3 is closed is greater than 2 kPa and is preferably at least 4 kPa. The maximum suction power suction power P 2 , max is always greater than 10 W and is preferably in the range of 15 to 25 W or more.

Fig. 2 zeigt eine erfindungsgemäßes kompaktes Saugreinigungsgerät 1 in der Seitenansicht. Die Gerätehöhe z beträgt weniger als 180 mm, vorzugsweise weniger als 150 mm. Die Gerätehöhe z ergibt sich aus dem durch den Fahrantrieb vorgegebenen Bodenabstand und den Abmessungen des Gehäuses 2, welches den Staubfangbehälter 6, das Sauggebläse 7, den Fahrantrieb 8, die Reinigungswalze 5, die Steuerelektronik 9 und die Stromquelle 10 aufnimmt. Zusätzliche Aufbauten bzw. Anbauten, wie beispielsweise ein Sensor oder eine Antenne 18, die bei einem Unterfahren eines Hindernisses nachgiebig sind bzw. federnd abknicken können, werden bei der Bestimmung der Gerätehöhe z nicht berücksichtigt. An der Gehäuseoberseite können ferner vorstehende Flossen angeordnet sein, die ein Unterfahren von niedrigen Möbelstücken verhindern, deren Bodenabstand nicht oder nur wenig größer ist, als die Gerätehöhe des Saugreinigungsgerätes. Auch derartige Flossen bleiben bei der Ermittlung der Gerätehöhe außer Betracht. Der Staubfangbehälter 6 und das Sauggebläse 7 sind nebeneinander angeordnet und erstrecken sich nahezu über die Gerätehöhe des Saugreinigungsgerätes 1, wodurch eine optimale Raumnutzung erreicht werden kann. Trotz der kompakten Abmessungen kann der Staubfangbehälter 6 größer als 1 Liter, vorzugsweise größer als 1,5 Liter, ausgeführt sein. Fig. 2 shows a compact Saugreinigungsgerät 1 according to the invention in side view. The device height z is less than 180 mm, preferably less than 150 mm. The device height z results from the ground clearance given by the travel drive and the dimensions of the housing 2, which accommodates the dust collector 6, the suction fan 7, the drive 8, the cleaning roller 5, the control electronics 9 and the power source 10. Additional structures or attachments, such as a sensor or an antenna 18, which are yielding under an obstacle driving or can bend resiliently, are not taken into account in the determination of the device height z. At the top of the housing can also be arranged protruding fins that prevent underrunning of low furniture whose ground clearance is not or only slightly larger than the height of the device Saugreinigungsgerätes. Even such fins remain out of consideration in determining the height of the device. The dust collector 6 and the suction fan 7 are arranged side by side and extend almost over the height of the device Saugreinigungsgerätes 1, whereby an optimal use of space can be achieved. Despite the compact dimensions of the dust collector 6 can be greater than 1 liter, preferably greater than 1.5 liters, executed.

Das Saugreinigungsgerät weist ein Volumen zwischen 15 und 25 Litern auf, wobei ein Bereich von 17 bis 20 Litern bevorzugt ist. Das Volumen ist definiert als der vom Gehäuseboden und einem Gehäuseoberteil umschlossener Raum einschließlich des Walzenraums.The vacuum cleaner has a volume between 15 and 25 liters, with a range of 17 to 20 liters being preferred. The volume is defined as the space enclosed by the housing bottom and an upper housing part including the roller space.

Claims (9)

  1. Compact suction cleaning device (1) for the automatic cleaning of smooth and textile floor coverings, in particular in domestic applications, comprising a housing (2), a suction mouth (3) on the underside of the housing (2), a cleaning roller (5) arranged in a roller chamber (4), a dust collection container (6), a suction fan (7), an electrical travel drive (8), control electronics (9) and a power source (10), the device height (z) of the suction cleaning device being less than 180 mm, characterised in that the maximum suction air flow qmax, which enters through the suction mouth (3), which is guided through the dust collection container (6) and which leaves the suction cleaning device (1) through the suction fan (7), is greater than 15 l/s (litres per second) and in that the maximum suction power P2,max is greater than 10 W.
  2. Suction cleaning device (1) according to Claim 1, characterised in that the device height (z) of the suction cleaning device (1) is less than 150 mm.
  3. Suction cleaning device (1) according to Claim 1 or 2, characterised in that the maximum vacuum hmax is greater than 2 kPa (kilopascals), preferably at least 4 kPa.
  4. Suction cleaning device (1) according to one of Claims 1 to 3, characterised in that the maximum suction power P2,max is greater than 15 W.
  5. Suction cleaning device (1) according to one of Claims 1 to 4, characterised in that the base area (A) of the suction cleaning device (1) is 1000 cm2 to 1500 cm2 .
  6. Suction cleaning device (1) according to one of Claims 1 to 5, characterised in that the suction cleaning device has a volume of 15 to 25 litres, preferably a volume of between 17 and 20 litres.
  7. Suction cleaning device (1) according to one of Claims 1 to 6, characterised in that the suction mouth (3) is arranged on the underside of the roller chamber (4).
  8. Suction cleaning device (1) according to one of Claims 1 to 7, characterised in that the volume of the dust collection container (6) is greater than 1 litre.
  9. Compact suction cleaning device (1) according to one of Claims 1 to 8, characterised in that the dust collection container (6) and the suction fan (7) are arranged adjacent to one another when viewed in the longitudinal direction.
EP06022038A 2006-10-20 2006-10-20 Compact suction cleaning device for autonomous cleaning of floor coverings Revoked EP1913856B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT06022038T ATE517570T1 (en) 2006-10-20 2006-10-20 COMPACT VACUUM CLEANING DEVICE FOR AUTHORIZED CLEANING OF FLOOR COVERINGS
EP06022038A EP1913856B1 (en) 2006-10-20 2006-10-20 Compact suction cleaning device for autonomous cleaning of floor coverings
US11/906,515 US20080222837A1 (en) 2006-10-20 2007-10-02 Compact vacuum cleaning device
CN2007101818671A CN101164484B (en) 2006-10-20 2007-10-19 Compact suction cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06022038A EP1913856B1 (en) 2006-10-20 2006-10-20 Compact suction cleaning device for autonomous cleaning of floor coverings

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EP1913856A1 EP1913856A1 (en) 2008-04-23
EP1913856B1 true EP1913856B1 (en) 2011-07-27

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EP (1) EP1913856B1 (en)
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AT (1) ATE517570T1 (en)

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CN101164484A (en) 2008-04-23
US20080222837A1 (en) 2008-09-18
ATE517570T1 (en) 2011-08-15
CN101164484B (en) 2011-08-10

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