EP2893860B1 - Appareil d'entretien du sol doté d'une brosse à rouleaux entraînée - Google Patents

Appareil d'entretien du sol doté d'une brosse à rouleaux entraînée Download PDF

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Publication number
EP2893860B1
EP2893860B1 EP15150103.8A EP15150103A EP2893860B1 EP 2893860 B1 EP2893860 B1 EP 2893860B1 EP 15150103 A EP15150103 A EP 15150103A EP 2893860 B1 EP2893860 B1 EP 2893860B1
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EP
European Patent Office
Prior art keywords
sealing lip
floor
care device
floor care
sealing
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
EP15150103.8A
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German (de)
English (en)
Other versions
EP2893860A1 (fr
Inventor
Stefan Tiekötter
Holger Ernst
David Buhl
Markus Penner
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2893860A1 publication Critical patent/EP2893860A1/fr
Application granted granted Critical
Publication of EP2893860B1 publication Critical patent/EP2893860B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • 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
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action

Definitions

  • the invention relates to a ground care device with a driven brush roller, which is otherwise sometimes referred to as a brush roller or bristle roller, or other device for dust mobilization.
  • All types of vacuum cleaners ie in particular vacuum cleaners in the form of so-called upright vacuum cleaners, vacuum cleaners, hand or table vacuum cleaners, and vacuum robots, are suitable as floor care appliances.
  • these include a self-conceived as a floor care device suction attachment, for example in the form of a suction nozzle, in which the driven brush roller is located.
  • the housing of the vacuum robot and the suction attachment virtually coincide so that the driven brush roller is located in the housing of the vacuum robot.
  • An electric motor or in a suitable manner in rotation offset brush roller is used for improved dust mobilization from each besaugten flooring.
  • the quantity of mobilized dust depends essentially on the nature of the brush roller, that is to say in particular on a number of brush combs and bristle tufts covered by the brush roller and a comb height, as well as on a respective brush rotational speed.
  • the speed of the brush roller (brush speed) is in a range of 1,000 revolutions per minute.
  • the brush speed is in a range of about 3,000 revolutions per minute.
  • the volume flow generated by a respective device fan also influences the dust mobilization.
  • the volume flow generated also causes the removal of the mobilized dust.
  • the JP 2007 061346 A discloses a floor care device with a front and rear suction mouth edge, which is sealed to the ground by a sealing lip, wherein the sealing lip for the cyclic interruption of the seal to the ground is controlled.
  • the sealing lip is placed in a translational sequence of movements on the floor and lifted off again. In this case, it is problematic that the sliding forces of the floor care appliance fluctuate greatly due to the translatory movement of the sealing lip. In addition, it is not possible with reasonable mechanical effort for the improvement of the dust pickup required short cycle times of the interruption of the seal to reach the ground.
  • a floor care device or a suction nozzle with the features of claim 1.
  • a floor care device comprising a rotatable brush roller for dust mobilization of the type mentioned above, which has a suction mouth with a front and a rear suction mouth edge and a sealing lip sealing the respective suction mouth edge to the floor or floor covering in the region of the front and / or the rear suction mouth edge in that at least one of the sealing lips can be activated for cyclically interrupting the sealing of the floor care appliance to the floor or floor covering.
  • the invention is based on the recognition that the mobilization of the dust resting on the floor or bound in a respective floor covering (dust mobilization) occurs mainly through the rotation of the brush roller and the bristles brushing over the floor and engaging in the floor covering, but that the suction with the suction mouth and the sealing lips also makes an important contribution by the suction ensures a directional Staubabtransport means of the vacuum generated by the vacuum cleaner fan and volume flow. It is relevant for the dust pick-up, whether the volume flow in its height is relatively constant or is interrupted in pulses.
  • the improved dust mobilization and improved dust removal result from the negative pressure rising in the intake area of the floor care appliance after an interruption of the volume flow. As soon as the interruption of the volume flow ends by a corresponding control of the at least one sealing lip, the negative pressure is abruptly reduced and the volume flow in the ground care device rises sharply. In this case, lying in front of the brush roller dirt and / or coarse dust entrained and sucked up as a result.
  • the pulsed volume flow causes a better self-cleaning of the brush roller and that the filter located downstream of the brush roller is shaken by the pulsed volume flow, whereby deposited there dust from the filter layers or the filter surface drops, so that gives an increased filter life.
  • a floor care device at least one of the sealing lips is designed as a rotatable and rotating during operation of the floor care device sealing lip.
  • a rotatable design of the sealing lip is a simple, low-maintenance implementation possibility for cyclically interrupting the seal to the floor or floor covering controllable sealing lip.
  • the actuation of the sealing lip for the cyclical interruption of the sealing of the floor care appliance to the floor or floor covering - referred to in the following as a substrate - takes place by the sealing lip being set in rotation.
  • a cyclically pivotable sealing lip or an oscillating upwardly and downwardly movable sealing lip is provided as the sealing lip which can be controlled for the cyclical interruption of the sealing of the floor care appliance.
  • a sealing lip and also other conceivable variants, for example a foldable sealing lip, which cause a cyclical interruption of the sealing of the floor care appliance to the ground and thus a pulsating volume flow into the floor care appliance, are collectively referred to below as a movable sealing lip.
  • two or more movable sealing lips are also considered instead of a movable sealing lip, for example two movable sealing lips which are each assigned to a suction mouth edge.
  • the two sealing lips are then arranged parallel to one another at a distance corresponding to the opening width of the suction mouth.
  • other movable sealing lips along the short sides be arranged the suction mouth.
  • Several movable sealing lips are synchronously controlled and are controlled synchronously during operation of the floor care device, so that, for example, in the case of rotatable, pivotable or oscillating movable sealing lips results in an in-phase movement.
  • the or each movable sealing lip can be controlled on the basis of a vacuum signal available from a vacuum sensor such that the movable sealing lip permits the volume flow into the floor care appliance starting from a previously closed state.
  • the opening time for the or each movable sealing lip can then be set optimally such that a maximum flow velocity in the volume flow and thus maximum dust mobilization result.
  • a direction of rotation of a movable sealing lip in the form of a rotatable sealing lip can be adjusted by means of a floor covering signal obtainable by a floor covering sensor or a vacuum signal available from a vacuum sensor acting as a floor covering sensor. Then the direction of rotation of the or each rotatable sealing lip can be adapted specifically to the respective floor covering.
  • FIG. 1 shows in a schematically highly simplified view of a here and hereinafter referred to as a floor care device 10 device in a sectional side view.
  • the floor care appliance 10 is, for example, a vacuum cleaner, not shown, or a suction nozzle of a vacuum cleaner of a type known per se, for example a vacuum cleaner in the form of an upright vacuum cleaner or a floor vacuum cleaner.
  • the floor care appliance 10 may be a so-called robotic vacuum cleaner, which in principle is likewise known per se, so that further details of a robotic vacuum cleaner are likewise not shown here.
  • the floor care device 10 includes in its front region as an example of a device for dust mobilization a rotatable brush roller 12 or other rotation body and has to its or its recording a roller housing 14 with a subsequent roll housing button. This is limited by a front suction mouth edge 16 and a rear suction mouth edge 18. Downstream of the brush roller 12 is located in a conventional manner, the suction fan 20 of the vacuum cleaner or Robotsaugers. In the direction of flow between the suction mouth defined by the two suction mouth edges 16, 18 and the suction fan 20 is a filter 22, which is designed for example as a surface filter. In the illustrated embodiment, the filter 22 is disposed in a subsequent to the roller housing 14 housing portion in which a lying in the flow direction in front of the filter 22 section acts as a flow-calmed area 24 for collecting collected dust.
  • the two sealing lips 26, 28 seal the two suction mouth edges 16, 18, ie the gap between the two suction mouth edges 16, 18 and the respective floor or floor covering 30 (substrate 30) and as a result the floor care device 10 as a whole from the base 30 and extend (in the illustrated sectional side view not visible) substantially along the entire width of the floor care device 10, ie along the entire length of the Saugmundkanten 16, 18 or at least along the entire axial length of the brush roller 12th
  • the front sealing lip 26 is designed as a rotating sealing lip 26.
  • the rear sealing lip 28 is for sealing to the ground 30 running sluggish and manufactured in a conventional manner from a suitably flexible material.
  • the rotatable and during operation of the floor care device 10 rotating sealing lip 26 is an example of a cyclically interrupting the sealing of the floor care device 10 to the substrate 30 controllable sealing lip 26.
  • the front sealing lip 26 is located on a rotatable axis and has at least two wings (more two wings, for example three wings, are also conceivable and encompassed by the approach proposed here
  • Such a sealing lip 26 which can be triggered to cyclically interrupt the sealing of the floor care appliance 10 to the substrate 30 will sometimes also be referred to as a movable sealing lip 26 for short.
  • the sealing lip 26 interrupts the flow of air into the roller housing 14 and the subsequent housing of the floor care device 10 (closed sealing lip 26).
  • the air path opens into the roller housing 14 and, accordingly, an open or open sealing lip 26 will be discussed below.
  • the air path into the roll housing 14 is fully opened.
  • the sealing lip 26 assigned to the front suction mouth edge 16 is rotatably movable and the sealing lip 28 assigned to the rear suction mouth edge 18 is immobile in comparison thereto and functions as a drag seal.
  • a cyclical interruption of the sealing of the floor care device 10 to the substrate 30 thus takes place only in the context of the rotation of the front sealing lip 26. If the front sealing lip 26 is closed due to a corresponding rotational position, results in the permanently closed rear sealing lip 28, an interruption of the flow in the Roller housing 14. In this case, the negative pressure in the roller housing 14 and the floor care device 10 increases in total. In a further rotation of the front sealing lip 26 then results in a rotational position in which the sealing lip 26 opens and is finally open.
  • the negative pressure built up with the sealing lip 26 closed abruptly degraded and the flow in the roll housing 14 rises abruptly. It results a pulsating or pulsed flow in the roll housing 14, which leads to a better dust mobilization and entrains lying in front of the brush roller 12 dirt / grit and is effective for its removal into the interior of the ground care device 10.
  • the movable sealing lip 26 is therefore also itself - in addition to the brush roller 12 - a device for dust mobilization.
  • the front sealing lip 26 and the rear sealing lip 28 are movable, namely made rotatable and are the operation of the floor care device 10 in particular phase-in rotation, so that the front and the rear sealing lip 26, 28 for cyclically interrupting the sealing of the Floor care device 10 to the ground 30 are controlled.
  • the above already the example of the embodiment according to FIG. 1 shown resulting in a rotating sealing lip 26 pulsed volume flow into the roller housing 14, resulting in the in FIG. 2
  • the improved dust mobilization therefore takes place in front of and behind the region of the substrate 30 which is respectively grasped by the brush roller 12.
  • FIG. 3 and FIG. 4 show alternative embodiments of the floor care device 10 according to FIG. 2 so on the local description as well as the description in FIG. 1 can be referenced.
  • the embodiment in FIG. 3 shows a floor care device 10 with two cyclically interrupting the sealing of the floor care device 10 to the substrate 30 controllable sealing lips 26, 28 in the form of two cyclically pivotable sealing lips 26, 28.
  • the embodiment in FIG. 4 shows a floor care device 10 with two controllable for cyclical interruption of the seal of the floor care device 10 to the substrate 30 sealing lips 26, 28 in the form of two oscillating movable, so alternately up and down movable sealing lips 26, 28.
  • FIG. 3 shows a floor care device 10 with two cyclically interrupting the sealing of the floor care device 10 to the substrate 30 controllable sealing lips 26, 28 in the form of two cyclically pivotable sealing lips 26, 28.
  • the embodiment in FIG. 4 shows a floor care device 10 with two controllable for cyclical interruption of the seal of the floor care device 10 to the
  • a cyclically pivotable sealing lip 26 is also considered, as in FIG. 3 is shown, or an oscillating movable sealing lip 26, as in FIG. 4 is shown.
  • Mixed forms, ie a floor care device 10 with, for example, a rotating sealing lip 26, 28 and an oscillating movable sealing lip 26, 28 or a cyclically pivotable sealing lip 26, 28 are also conceivable and encompassed by the approach presented here.
  • FIG. 5 embodiment shown is based on the embodiment according to FIG. 1 with exactly one movable, namely rotatable sealing lip, but is of course not limited to this embodiment.
  • the peculiarity of the embodiment in FIG. 5 consists in that the floor care appliance 10 has one of two (not designated) further, in particular designed as a drag seal sealing lips rear suction mouth 32 limited. While the flow path in the roller housing 14 due to at least one movable sealing lip 26 is interrupted periodically, the flow path in the rear suction mouth 32 is permanently open. However, the increased negative pressure in the floor care appliance 10 resulting in closed sealing lip 26 (or closed sealing lips 26, 28) also leads to a pulsed volume flow through the rear suction mouth 32.
  • the control of the or each movable sealing lip 26, 28 takes place for example by means of a transmission or reduction of a drive, with which the brush roller 12 is set in rotation.
  • the control of the or each movable sealing lip 26, 28 can also be done independently of the drive of the brush roller 12.
  • a control of the two sealing lips 26, 28 takes place in such a way that an in-phase movement results, ie a control in which the sealing lips 26, 28 are simultaneously open and closed at the same time.
  • a rotational speed in the range of 100 revolutions per minute is currently being considered.
  • another kinematics for the cyclic opening and closing of the or each movable sealing lip 26, 28 is a corresponding control to achieve a comparable number of open and closed cycles per unit time.
  • the rotational speed of the or each movable sealing lip 26, 28 is normally independent of the ground speed of the ground care device 10, but may optionally be adapted to the respective air capacity of the suction fan 20.
  • the rotational speed can be determined by the negative pressure respectively achieved when the sealing lip 26, 28 is closed.
  • FIG. 6 a floor care device 10 with a vacuum sensor 34. This is disposed between the brush roller 12 and the filter 22 and is located with respect to the generated during operation of the floor care device 10 by the suction fan 20 upstream flow of the filter 22nd
  • the vacuum sensor 34 arranged in the interior of the floor care appliance 10 emits a vacuum signal 36 during operation of the floor care appliance 10, the mode of action of which in the lower area of the illustration in FIG. 6 is explained.
  • the floor care appliance 10 is shown there in a further simplified form.
  • the floor care device 10 comprises at least one movable sealing lip 26 and a drive, for example a drive in the form of an electric motor 38, with which the movable sealing lip 26 is controllable for cyclically interrupting the sealing of the floor care device 10 to the substrate 30.
  • the control takes place on the basis of the negative pressure signal 36 generated by the vacuum sensor 34 by supplying the vacuum signal 36 to a control device 40.
  • the negative pressure signal 36 On the achievement or exceeding of a predetermined or predeterminable threshold.
  • the control device 40 Upon reaching or exceeding the threshold, the control device 40 generates a drive signal for the electric motor 38 or other drive device for moving the respective movable sealing lip 26.
  • This automatic and vacuum-dependent control of the movable sealing lip 26 causes the automatic and negative pressure-dependent opening of the sealing lip 26.
  • the subsequent closing of the sealing lip 26 is then again automatically and under pressure dependent.
  • a drive by means of an electric motor 38 in the form of a stepping motor is useful.
  • a stepper motor for controlling a rotatable sealing lip 26 causes In this case, a segmental actuation of the sealing lip 26.
  • a movable sealing lip 26 in the form of a cyclically pivotable sealing lip 26 or an oscillating movable sealing lip 26 is also a magnetic actuation of the sealing lip 26 into consideration.
  • a direction of rotation of the sealing lip 26 can be adjusted by means of a floor covering sensor or a vacuum signal 36 available from a vacuum sensor 34.
  • a vacuum signal 36 available from a vacuum sensor 34 may give an indication of the particular floor covering, so that the vacuum sensor 34 is already an example of a floor covering sensor. Otherwise come as a floor covering sensor other known sensors, for example, optical sensors, into consideration.
  • a follower, movable sealing lip 26 passes over the substrate 30 against the direction of movement of the floor care device 10.
  • a follower sealing lip 26 in the same direction with the drive wheels running.
  • the direction of rotation of the brush roller 12 can be adjusted depending on the type of dirt and the substrate 30.
  • Specified is a floor care device 10 with a front and a rear suction mouth edge 16, 18 and the respective suction mouth edge 16, 18 to the base 30 sealing sealing lip 26, 28 in the front and / or the rear suction mouth edge 16, 18, wherein at least one of the sealing lips 26, 28 is controllable for the cyclical interruption of the seal to the substrate 30, the opening of a previously closed sealing lip 26, 28 leading to an abrupt dismantling of a closed sealing lip 26, 28 in the floor care device 10 forming negative pressure and thus to an increased and a resulting cyclic opening and closing of the sealing lip 26, 28 resulting pulsed flow in the soil care device 10 and as a result to increased dust mobilization in the brush roller 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (7)

  1. Appareil d'entretien du sol (10), avec une arête de bouche d'aspiration (16, 18) avant et arrière et une lèvre d'étanchéité (26, 28) assurant l'étanchéité de l'arête de bouche d'aspiration (16, 18) respective par rapport au sol ou revêtement de sol (30) dans la zone de l'arête de bouche d'aspiration (16, 18) avant et/ou arrière, dans lequel au moins une des lèvres d'étanchéité (26, 28) peut être commandée pour l'interruption cyclique de l'étanchéité par rapport au sol ou revêtement de sol (30),
    caractérisé en ce que
    au moins une des lèvres d'étanchéité (26, 28) est réalisée en tant que lèvre d'étanchéité (26, 28) rotative et tournante.
  2. Appareil d'entretien du sol (10) selon la revendication 1, 2 ou 3, dans lequel au moins une des lèvres d'étanchéité (26, 28) est réalisée en tant que lèvre d'étanchéité (26, 28) mobile de façon oscillante.
  3. Appareil d'entretien du sol (10) selon l'une des revendications précédentes, avec une bouche d'aspiration (32) arrière limitée par des lèvres d'étanchéité immobiles.
  4. Appareil d'entretien du sol (10) selon l'une des revendications précédentes, dans lequel la ou chaque lèvre d'étanchéité (26, 28) peut être commandée au moyen d'un signal de dépression (36) pouvant être obtenu en provenance d'un capteur de dépression (34).
  5. Appareil d'entretien du sol (10) selon l'une des revendications précédentes, dans lequel un sens de rotation de la ou de chaque lèvre d'étanchéité (26, 28) rotative peut être réglé au moyen d'un capteur de revêtement de sol ou d'un signal de dépression (36) pouvant être obtenu en provenance d'un capteur de dépression (34).
  6. Appareil d'entretien du sol (10) selon l'une des revendications précédentes, dans lequel une vitesse de rotation de la ou de chaque lèvre d'étanchéité (26, 28) rotative peut être réglée en fonction d'une capacité d'air d'un ventilateur d'aspiration (20).
  7. Appareil d'entretien du sol (10) selon l'une des revendications précédentes, avec deux lèvres d'étanchéité (26, 28) mobiles ou plus pouvant être commandées, en particulier être commandées de façon synchrone, pour l'interruption cyclique de l'étanchéité par rapport au sol ou revêtement de sol (30).
EP15150103.8A 2014-01-13 2015-01-05 Appareil d'entretien du sol doté d'une brosse à rouleaux entraînée Active EP2893860B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014100313.6A DE102014100313A1 (de) 2014-01-13 2014-01-13 Bodenpflegegerät mit einer angetriebenen Bürstenwalze

Publications (2)

Publication Number Publication Date
EP2893860A1 EP2893860A1 (fr) 2015-07-15
EP2893860B1 true EP2893860B1 (fr) 2017-03-15

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EP15150103.8A Active EP2893860B1 (fr) 2014-01-13 2015-01-05 Appareil d'entretien du sol doté d'une brosse à rouleaux entraînée

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DE (1) DE102014100313A1 (fr)

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EP3500145B1 (fr) * 2016-08-22 2021-10-06 Alfred Kärcher SE & Co. KG Suceur pour un aspirateur, procédé d'aspiration de surfaces textiles et aspirateur
DE102016119103A1 (de) * 2016-10-07 2018-04-12 Carl Freudenberg Kg Reinigungsroboter
DE102017117854A1 (de) * 2017-08-07 2019-02-07 Vorwerk & Co. Interholding Gmbh Saugdüse für einen Staubsauger und Verfahren zum Betreiben einer Saugdüse
CN108080354A (zh) * 2017-12-28 2018-05-29 开封宜家建筑材料有限公司 一种装饰画用除尘装置
CZ31974U1 (cs) 2018-06-12 2018-08-14 GETURA PLUS, spol. s r.o. Stacionární zařízení pro automatické čištění podlah místností
KR20200073966A (ko) * 2018-12-14 2020-06-24 삼성전자주식회사 진공 청소기와 도킹 스테이션을 포함하는 청소 장치
CN110656609B (zh) * 2019-09-26 2021-10-22 广东博智林机器人有限公司 清扫设备
SE2000243A1 (en) * 2020-12-21 2022-06-22 Electrolux Ab Nozzle for a vacuum cleaner and a vacuum cleaner

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US3753268A (en) * 1971-12-03 1973-08-21 Cons Foods Corp Vacuum cleaner suction tool with oppositely rotating pile agitators for cleaning deep pile shag rugs
JPH06292646A (ja) * 1993-04-07 1994-10-21 Koichi Yoda 吸引掃除機の吸込具
JP3855578B2 (ja) * 2000-03-01 2006-12-13 松下電器産業株式会社 電気掃除機
GB2383257B (en) * 2001-12-21 2005-08-10 Dyson Ltd Cleaner head for a vacuum cleaner
DE102004006350A1 (de) * 2004-02-10 2005-08-25 Vorwerk & Co. Interholding Gmbh Bodendüse für einen Staubsauger
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JP4696789B2 (ja) * 2005-08-31 2011-06-08 パナソニック株式会社 電気掃除機
DE102007002226B3 (de) 2007-01-10 2008-07-17 Miele & Cie. Kg Saugvorsatz für einen Staubsauger
DE102011051729A1 (de) 2011-07-11 2013-01-17 Alfred Kärcher Gmbh & Co. Kg Selbstfahrendes Bodenreinigungsgerät
DE102012104706B4 (de) * 2012-04-12 2022-09-29 Vorwerk & Co. Interholding Gmbh Saugdüse mit zwei Saugmündern

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DE102014100313A1 (de) 2015-07-16

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