EP3622869A1 - Vorrichtung zur messung des reibungsniveaus zwischen einer saugdüse eines staubsaugers und der reinigungsfläche - Google Patents

Vorrichtung zur messung des reibungsniveaus zwischen einer saugdüse eines staubsaugers und der reinigungsfläche Download PDF

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Publication number
EP3622869A1
EP3622869A1 EP18193993.5A EP18193993A EP3622869A1 EP 3622869 A1 EP3622869 A1 EP 3622869A1 EP 18193993 A EP18193993 A EP 18193993A EP 3622869 A1 EP3622869 A1 EP 3622869A1
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EP
European Patent Office
Prior art keywords
broomstick
friction
cleaning surface
value
arrangement
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.)
Granted
Application number
EP18193993.5A
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English (en)
French (fr)
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EP3622869B1 (de
Inventor
Hüseyin Ilker TURGUT
Tugce ILHAN
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.)
Vestel Elektronik Sanayi ve Ticaret AS
Original Assignee
Vestel Elektronik Sanayi ve Ticaret AS
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Priority to EP18193993.5A priority Critical patent/EP3622869B1/de
Publication of EP3622869A1 publication Critical patent/EP3622869A1/de
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Publication of EP3622869B1 publication Critical patent/EP3622869B1/de
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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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • 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
    • A47L9/02—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
    • A47L9/28—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
    • 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
    • A47L9/2821—Pressure, vacuum level or airflow
    • 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
    • A47L9/2826—Parameters or conditions being sensed the condition of the floor
    • 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
    • A47L9/2842—Suction motors or blowers

Definitions

  • This invention refers to an arrangement for a vacuum cleaner according to claim 1, a vacuum cleaner according to claim 11, and a method for providing an arrangement within a vacuum cleaner according to claim 12.
  • a vacuum cleaner one of the household appliances, is a common tool in every household. This electrical household appliance is used to sweep places requires movement with human force. However, different surfaces have different friction coefficients so that a different traction power level is needed. Adjusting the traction power to the surface is a troublesome task for users. For example, while low-strength traction is sufficient on the laminate surface, higher traction settings are required on surfaces such as carpets. It is an old system which is problematic for users to change the power setting manually on each surface. Some users operate the vacuum cleaner at high power throughout the entire sweeping process, unless the traction power is changed. As a result, the energy loss is increasing as the vacuum cleaner runs for a long time.
  • Japanese Patent Publication Number JP2015188490 discloses a self-propelled vacuum cleaner which includes a body having a pair of driving wheels, driving wheel driving means for driving the pair of driving wheels individually, a rotary brush provided at a bottom surface of the body; an azimuth detection sensor for detecting the direction of the body, floor surface detection means for detecting a friction resistance value of the floor surface with which the rotary brush comes into contact, and a control unit for controlling individual rotational frequency of the driving wheels with respect to the driving wheel driving means.
  • the control unit performs control based on the detection value of the azimuth detection sensor, and performs control of the driving wheel driving means on the basis of the friction resistance value of the floor surface detected by the floor surface detection means.
  • Japanese Patent Publication Number JPH06169872 discloses a vacuum cleaner having a floor brush fitted with a vibration detecting means which detects a vibration due to friction with the irregularities of the surface of a cleaning object or the surface of the body, and a mounting and demounting state detecting means to detect whether the brush is lifted.
  • the vibration detection means is constituted of a piezoelectric element, a vibration actuator and a vibration spring.
  • the demounting state detecting means is constituted of a micro switch and an actuator for causing a mounting and demounting motion.
  • Japanese Patent Publication Number JPS648941 discloses an electric cleaner which automatically control a suction flow quantity by detecting friction by a suction part of a floor surface in a suction range, and further determines a condition of the floor surface based on the size of the detected friction, and performs control of suction.
  • It is therefore an object of the present invention is to efficiently detect a friction level of a cleaning surface currently being cleaned by a vacuum cleaner.
  • An arrangement for a vacuum cleaner which comprises a broomstick, the arrangement comprising a friction detection unit adapted to sense at least one of a friction force between the broomstick and a cleaning surface to be cleaned using broomstick, or a pressure value to detect pressure applied due to at least one contact between the cleaning surface and the broomstick, or due to a movement of the broomstick onto the cleaning surface, or a combination thereof, or a heat value representative of heat generated while the broomstick is in contact with the cleaning surface, or, a temperature value representative of temperature around an environment of the broomstick and the cleaning surface to be cleaned using broomstick, or a combination thereof.
  • the arrangement further comprising a primary processing unit adapted to receive and process the friction force or the heat, or the temperature, or the pressure value, or a combination thereof, and to identify a friction level of the cleaning surface.
  • This embodiment is helpful, as it provides a mechanism for identifying friction level based on parameters like temperature, heat generated while the surfaces are in contact, pressure, friction force.
  • the friction coefficient or friction level have a corelation with these parameters, and can be used for more efficiently determining the friction level of the cleaning surface. Once the friction level is identified, a user can manually change the traction level of vacuum cleaner, or the friction level can be further used to automatically change the traction power of the vacuum cleaner.
  • the arrangement further comprises a memory storing a lookup table having a mapping of temperature value, or heat value or friction force, or the pressure value, or a combination thereof with respect to the friction levels of the cleaning surface, wherein the primary processing unit is adapted to fetch the friction level of the cleaning surface based on the temperature value, or heat value, or friction force, or pressure value, or a combination thereof.
  • This embodiment is beneficial as it provides an efficient mechanism to identify the friction level by using predefined relation between the parameters detected by friction detection ubit, i.e., temperature value, heat, friction force, pressure value, and the friction level.
  • the friction detection sensor is placed in proximity to the broomstick of the vacuum cleaner and/or on the outer surface of the head of the vacuum cleaner.
  • This embodiment is helpful, as it provides for further sensing of accurate values sensed by the friction detection unit are accurate due to proximity of the detection unit and the source of generation of the heat, temperature, pressure and friction force.
  • the source here is the surface of broom stick and the cleaning surface.
  • the friction detection unit comprises a temperature sensor adapted to sense the temperature value.
  • This embodiment is helpful, as it provides an easy mechanism to sense the temperature values.
  • the arrangement comprises a heat processing module adapted to receive and process the temperature value, and to determine the heat generated while the broomstick is in contact with the cleaning surface.
  • This embodiment is helpful, as it provides a mechanism to sense amount of heat generated while the broomstick is in contact with the cleaning surface.
  • the friction detection unit comprises a pressure sensor adapted to detect the pressure value applied due to at least one contact between the cleaning surface and the broomstick, or due to the movement of the broomstick onto the cleaning surface, or a combination thereof.
  • This embodiment is helpful, as it provides an easy mechanism to sense the pressure values.
  • the arrangement comprises a force processing module adapted to receive and process the pressure value, and to determine the friction force between the broomstick and the cleaning surface being cleaned using broomstick.
  • This embodiment is helpful, as it provides a mechanism to sense amount of friction force generated while the broomstick is in contact with the cleaning surface.
  • the primary processing unit is further adapted to receive a traction power value representative of the vacuum cleaner, and to process the traction power value along with the temperature value to identify a friction level of the cleaning surface.
  • This embodiment is beneficial, as it provides for a mechanism to keep a consideration for traction power is being applied while tracking the temperature values generated. If a traction power value remains substantially unchanged over a period of time, while temperature value changes substantially, it shall pertain to a situation for change of the cleaning surface, hence change in friction level.
  • the primary processing unit is adapted to generate a trigger based on the identification of the friction level.
  • the arrangement further comprising a control unit adapted to receive the trigger, and to change a traction power level of a traction motor of the vacuum cleaner.
  • This embodiment is beneficial, as it automates the process of changing traction power based on the change in friction level of the cleaning surface.
  • the friction detection unit is adapted to sense the friction force or the heat, or the temperature, or the pressure value, or a combination thereof, at regular intervals.
  • This embodiment is beneficial, as sensing the parameters by the friction detection unit periodically helps in identifying any sudden change in the friction level due to changes in the type of surfaces while the vacuum cleaner is functioning.
  • a method for providing an arrangement within a vacuum cleaner comprising placing a friction detection unit in proximity of a broomstick of the vacuum cleaner.
  • the friction detection unit adapted to sense at least one of a friction force between the broomstick and a cleaning surface to be cleaned using broomstick, or a pressure value to detect pressure applied due to at least one of a contact between the cleaning surface and the broomstick, or due to a movement of the broomstick onto the cleaning surface, or a combination thereof, or a heat generated while the broomstick is in contact with the cleaning surface, or, a temperature around an environment of the broomstick and the cleaning surface to be cleaned using broomstick, or a combination thereof.
  • the method further includes coupling a primary processing unit to the friction detection unit.
  • the primary processing unit is adapted to receive and process the friction force or the heat, or the temperature, or the pressure value, or a combination thereof, and to identify a friction level of the cleaning surface.
  • the method comprises coupling the primary processing unit to a memory.
  • the memory stores a lookup table having a mapping of temperature value, or heat or friction force, or the pressure value, or a combination thereof with respect to the friction levels of the cleaning surface.
  • the primary processing unit is adapted to fetch the friction level of the cleaning surface based on the temperature value, or heat or friction force, or a combination thereof.
  • the method comprises triggering the movement means by using a motor to extend the separator to be in the extended position from the collapsed position, or to collapse the separator be in collapsed position from the extended position.
  • the primary processing unit is adapted to generate a trigger based on the identification of the friction level.
  • the method further comprising coupling the primary processing unit to a control unit, such that the control unit is adapted to receive the trigger, and to change a traction power level of a traction motor of the vacuum cleaner.
  • the present invention focuses on determining friction levels of a cleaning surface being cleaned by a vacuum cleaner.
  • frictional force and heat level are utilized which will come out from the surface area of the vacuum cleaner. Since the friction coefficient will depend on the surface type, surfaces such as laminate parquet, carpet and tile will be detected by the vacuum cleaner. After the surface type is determined, the traction force will be increased for rough surfaces and will be reduced on a smooth surface where low power is sufficient. The traction force can be changed either manually, or through a automated mechanism.
  • Fig. 1 shows a vacuum cleaner 19 having a friction detection unit 2.
  • the vacuum cleaner 19 includes a broomstick 20 which comes into contact to a cleaning surface 21 to clean the cleaning surface 21.
  • the friction detection unit 2 is placed in proximity to head of the broomstick 20.
  • the friction detection unit 2 is responsible for detection of one or more of
  • a processor determines friction level of the surface being cleaned or about to be cleaned. And, once the friction level of the cleaning surface 21 is identified, the traction power level of traction motor can be changed automatically or manually.
  • the friction detection unit need not be placed in proximity of the head of the broomstick, rather it can be placed at any other location, however in proximity to the contact of the cleaning surface 21 and the broomstick 20.
  • Fig. 2 shows a schematic diagram of the arrangement 1 for a vacuum cleaner for determining and managing friction level 8 of a cleaning surface being cleaned.
  • the arrangement includes a friction detection unit 2, a primary processing unit 7, and a control unit 17.
  • the friction detection unit 2 is capable of identifying four parameters, i.e., temperature value 6, heat value 5, pressure value 4, and friction force 3. In an alternate embodiment, the friction detection unit 2 is capable only to identify any one or more of the four parameters, temperature value 6, heat value 5, pressure value 4, and friction force 3.
  • the primary processing unit 7 also receives a traction power value 15 representative of traction power of the vacuum cleaner at a particular timeframe, and process the parameters 3, 4, 5, 6, and identifies the friction level 8 of the cleaning surface currently being cleaned or about to be cleaned.
  • the primary processing unit 7 receives temperature values 6 at regular time intervals, and also receives traction power value 15, and if the traction power value 15 remain unchanged in that particular period of time, however the temperature values 6 changes, the primary processing unit 7 identifies that the friction level has changed, and further processes the parameters 3, 4, 5, 6 to determine the friction level 8.
  • the primary processing unit 7 do not receive the traction power value 15, and processes one or more parameters, temperature value 6, heat value 5, pressure value 4, and friction force 3, to determine the friction level 8.
  • the arrangement 1 also includes a memory 9 which stores a lookup table 10 which maps friction levels 8 to temperature value 6, heat value 5, pressure value 4, and friction force 3.
  • the lookup table 10 includes mapping of friction levels 8 to any one or more of temperature value 6, heat value 5, pressure value 4, and friction force 3.
  • the primary processing unit 7 while processing the parameters 3, 4, 5, 6, fetches the relevant friction level 8 from the lookup table 10 and determines it to be the friction level 8 of the cleaning surface being cleaned or about to be cleaned.
  • the arrangement need not include the memory 9, rather the primary processing unit 7 processes the parameters, temperature value 6, heat value 5, pressure value 4, and friction force 3 based on certain rules to determine the friction level 8 of the cleaning surface.
  • the primary processing unit 7 Based on the friction level 8 of the cleaning surface, the primary processing unit 7 generates a trigger 16 for controlling traction power level of the vacuum cleaner.
  • the trigger 16 is further sent to a control unit 17, which processes the trigger 16 to control a traction motor 18 to change the traction power level of the vacuum cleaner.
  • the arrangement only determines the friction level 8 of the cleaning surface, while the traction power level of the traction motor 18 is adjusted manually.
  • Fig. 3 shows a schematic diagram of a friction detection unit 2.
  • the friction detection unit 2 includes a temperature sensor 11, a pressure sensor 13, a heat processing module 12, and a force processing module 14.
  • the temperature sensor 11 senses the temperature values 6, while the pressure sensor 13 senses the pressure values 4.
  • the temperature values 11 are fed into the heat processing module 12, which processes the temperature value 6 to determine the heat value 5 regarding heat generated while the broomstick is in contact with the cleaning surface.
  • the pressure values 4 are fed into the force detection module 14, which process the pressure value 4, and determines the friction force 3 between the broomstick and the cleaning surface being cleaned using broomstick.
  • the temperature sensor 11, and the pressure sensor 13 are provided in the friction detection unit 2 in such a way, so that they are in proximity to the head of the broomstick, or in proximity to a contact between the broomstick and the cleaning surface about to be cleaned or being cleaned.
  • the friction detection unit only has either the temperature sensor 11 or the pressure sensor 13, and hence is capable of generating only the heat value 5 or the friction force 3, as the case may be.
  • the heat processing module 12 and the force processing module 14 are not present or only either of them present. Accordingly, in alternate embodiment, based on the presence of sensors and processing modules, the friction detection unit 2 is adapted to generate one or more of the following parameters, temperature value 6, heat value 5, pressure value 4, and friction force 3.
  • the present invention provides for an arrangement 1 for a vacuum cleaner 19 which have a broomstick 20.
  • the arrangement 1 includes a friction detection unit 2 which senses at least one friction force 3 between the broomstick 20 and a cleaning surface 21 to be cleaned using broomstick 20, or a pressure value 4 to detect pressure applied due to at least one contact between the cleaning surface 21 and the broomstick 20, or due to a movement of the broomstick 20 onto the cleaning surface 21, or combination thereof, or a heat value 5 representative of heat generated while the broomstick 20 is in contact with the cleaning surface 21, or, a temperature value 6 representative of temperature around an environment of the broomstick 20 and the cleaning surface 21 to be cleaned using broomstick, or a combination thereof.
  • the arrangement 1 also includes a primary processing unit 7 which receives and processes the friction force 3 or the heat value 5, or the temperature value 6, or the pressure value 4, or a combination thereof, and to identify a friction level 8 of the cleaning surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
EP18193993.5A 2018-09-12 2018-09-12 Technik zur bestimmung des reibungsgrads einerr reinigungsoberfläche und zur steuerung des reibungsgrads durch einen staubsauger Active EP3622869B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18193993.5A EP3622869B1 (de) 2018-09-12 2018-09-12 Technik zur bestimmung des reibungsgrads einerr reinigungsoberfläche und zur steuerung des reibungsgrads durch einen staubsauger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18193993.5A EP3622869B1 (de) 2018-09-12 2018-09-12 Technik zur bestimmung des reibungsgrads einerr reinigungsoberfläche und zur steuerung des reibungsgrads durch einen staubsauger

Publications (2)

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EP3622869A1 true EP3622869A1 (de) 2020-03-18
EP3622869B1 EP3622869B1 (de) 2023-08-16

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EP18193993.5A Active EP3622869B1 (de) 2018-09-12 2018-09-12 Technik zur bestimmung des reibungsgrads einerr reinigungsoberfläche und zur steuerung des reibungsgrads durch einen staubsauger

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS648941A (en) 1987-06-30 1989-01-12 Toshiba Corp Electric cleaner
JPH06169872A (ja) 1992-12-03 1994-06-21 Sharp Corp 電気掃除機
DE102004014252A1 (de) * 2003-12-06 2005-06-30 Vorwerk & Co. Interholding Gmbh Verfahren zum Betreiben eines Staubsaugers mit einer Saugdüse sowie Staubsauger mit einer Saugdüse
DE102007057589A1 (de) * 2007-11-28 2009-06-04 BSH Bosch und Siemens Hausgeräte GmbH Luft-Volumenstrom- und Schiebekraft-Regelungsvorrichtung
JP2015188490A (ja) 2014-03-27 2015-11-02 三菱電機株式会社 自走式掃除機
DE102014116978A1 (de) * 2014-11-20 2016-05-25 Vorwerk & Co. Interholding Gesellschaft mit beschränkter Haftung Reinigungsgerät mit einem durch einen Motor angetriebenen Gebläse und einem Saugkanal
DE102016118248A1 (de) * 2015-10-30 2017-05-04 Vorwerk & Co. Interholding Gmbh Reinigungsgerät, insbesondere Haushaltsstaubsauger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS648941A (en) 1987-06-30 1989-01-12 Toshiba Corp Electric cleaner
JPH06169872A (ja) 1992-12-03 1994-06-21 Sharp Corp 電気掃除機
DE102004014252A1 (de) * 2003-12-06 2005-06-30 Vorwerk & Co. Interholding Gmbh Verfahren zum Betreiben eines Staubsaugers mit einer Saugdüse sowie Staubsauger mit einer Saugdüse
DE102007057589A1 (de) * 2007-11-28 2009-06-04 BSH Bosch und Siemens Hausgeräte GmbH Luft-Volumenstrom- und Schiebekraft-Regelungsvorrichtung
JP2015188490A (ja) 2014-03-27 2015-11-02 三菱電機株式会社 自走式掃除機
DE102014116978A1 (de) * 2014-11-20 2016-05-25 Vorwerk & Co. Interholding Gesellschaft mit beschränkter Haftung Reinigungsgerät mit einem durch einen Motor angetriebenen Gebläse und einem Saugkanal
DE102016118248A1 (de) * 2015-10-30 2017-05-04 Vorwerk & Co. Interholding Gmbh Reinigungsgerät, insbesondere Haushaltsstaubsauger

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