WO2002069774A1 - Appareil de nettoyage de sols - Google Patents

Appareil de nettoyage de sols Download PDF

Info

Publication number
WO2002069774A1
WO2002069774A1 PCT/EP2002/002127 EP0202127W WO02069774A1 WO 2002069774 A1 WO2002069774 A1 WO 2002069774A1 EP 0202127 W EP0202127 W EP 0202127W WO 02069774 A1 WO02069774 A1 WO 02069774A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
turbine
cleaning device
floor cleaning
channel
Prior art date
Application number
PCT/EP2002/002127
Other languages
German (de)
English (en)
Inventor
Ralph Diehl
Jacob Janzen
Joachim Keppler
Original Assignee
Alfred Kärcher Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kärcher Gmbh & Co. Kg filed Critical Alfred Kärcher Gmbh & Co. Kg
Priority to EP02703606A priority Critical patent/EP1365674B1/fr
Priority to DE50213166T priority patent/DE50213166D1/de
Publication of WO2002069774A1 publication Critical patent/WO2002069774A1/fr
Priority to US10/641,734 priority patent/US20040074044A1/en

Links

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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
    • A47L11/202—Floor surfacing or polishing machines combined with vacuum cleaning devices having separate drive for the cleaning brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4027—Filtering or separating contaminants or debris
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • 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

Definitions

  • the invention relates to a floor cleaning device comprising a suction turbine with a turbine wheel that can be driven to rotate about a turbine axis, and an essentially horizontally oriented suction channel, via which the suction turbine is in flow connection with a suction opening facing the floor surface to be cleaned, the suction channel forming a dirt holding container and a dirt filter receives.
  • Such a floor cleaning device is known from international laid-open specification WO 99/28800.
  • a suction flow can be generated by means of the suction turbine, with the aid of which the floor surface to be cleaned can be suctioned off.
  • the suction turbine with the turbine axis oriented vertically is attached to the suction channel running essentially in the horizontal direction. This enables the use of a relatively large turbine wheel, but has the disadvantage that the floor cleaning device has a not inconsiderable overall height.
  • the object of the present invention is to design a floor cleaning device of the type mentioned at the beginning with the smallest possible height, wherein the strongest possible suction flow should be achievable in the area of the suction opening.
  • a floor cleaning device of the generic type in that the suction turbine with is attached to the suction channel at an angle to the vertical aligned turbine axis.
  • the suction turbine By aligning the suction turbine in this way, the overall height of the floor cleaning device can be kept low even when using a relatively large turbine wheel.
  • such an arrangement has the advantage that the suction flow caused by the suction turbine suffers only relatively small losses due to changes in direction occurring in the connection area between the suction duct and the suction turbine. As a result, a relatively strong suction flow can be generated in the area of the suction opening.
  • the floor cleaning device according to the invention is thus characterized by a compact design and a particularly effective mode of operation.
  • the turbine axis is oriented at an angle of approximately 15 ° to approximately 75 ° to the vertical.
  • an angle of approximately 20 ° to approximately 40 ° has proven to be particularly favorable, on the one hand to keep flow losses occurring in the transition area between the horizontally oriented suction duct and the suction turbine low, and on the other hand, the use of the largest possible height taking into account the smallest possible height To enable turbine wheel.
  • the floor cleaning device has a brush roller which can be driven in rotation and is arranged in the region of the suction opening. Using the brush roller, the floor surface to be cleaned can not only be vacuumed off, but also brushed.
  • the suction turbine is designed as an axial-radial fan, with the aid of which the working air can be drawn in in the axial direction with respect to the turbine axis and can be discharged in the radial direction. The use of an axial-radial fan enables a high pressure difference to be built up, so that a particularly strong suction flow can be achieved.
  • the floor cleaning device according to the invention is characterized by a relatively low overall height. This makes it possible to use the floor cleaning device to reach areas of the floor area to be cleaned below radiators, pieces of furniture and the like.
  • the working air sucked in by the suction turbine is released into the environment again after flowing through the dirt receptacle and the suction turbine.
  • the suction turbine comprises an outlet duct opening into at least one air outlet opening, the mouth region of which is oriented obliquely to the vertical.
  • the exhaust air can be emitted by means of the mouth region which is oriented obliquely to the vertical with a correspondingly obliquely oriented exhaust air flow, so that the risk is reduced that dirt is caught by the exhaust air flow which has deposited, for example, on radiators when the floor cleaning device is positioned under the radiators.
  • the mouth region of the outlet channel is oriented at an angle of approximately 60 ° to approximately 80 ° to the vertical.
  • the outlet duct surrounds the turbine wheel in the circumferential direction. This makes it possible to use a relatively long outlet channel despite the compact floor cleaning device, which can reduce the noise of the suction turbine.
  • the use of a long outlet duct also results in an increase in the pressure difference between the inlet and outlet of the suction turbine, which improves the efficiency of the suction turbine.
  • a particularly low level of noise can be achieved in that the outlet channel is spiral-shaped and is continuously expanded in the direction of flow. With such a configuration, the exhaust air can expand continuously, so that an abrupt expansion of air with a corresponding noise development is avoided.
  • the suction turbine comprises an electric external rotor motor with a stator held on a support element and a rotor which can be rotated about the turbine axis and on which the turbine wheel is held in a rotationally fixed manner.
  • the use of the external rotor motor makes it possible to position the motor on the side of the turbine wheel facing away from the suction duct, without this resulting in a considerable increase in the overall height of the floor cleaning device.
  • This in turn has the advantage that the suction channel has no significant cross-sectional constrictions and is therefore characterized by the lowest possible flow resistance.
  • the floor cleaning device is preferably designed to be self-propelled. For this purpose, it can have a chassis on which two drive wheels driven by an electric motor are mounted.
  • Figure 1 is a schematic sectional view of a floor cleaning device
  • Figure 2 is a plan view of the floor cleaning device.
  • a self-propelled floor cleaning device designated as a whole by reference number 10
  • a chassis 12 designed as a plastic injection-molded part, on which two drive wheels 13, 14 are rotatably mounted, each of which can be rotatably driven by means of an electric drive motor 15 or 16.
  • a cover can be placed on the undercarriage 12, which forms dust protection and is not shown in FIGS. 1 and 2 for better clarity.
  • the undercarriage 12 forms a support plate 21, which is aligned essentially parallel to a floor surface 19 to be cleaned, and which is also parallel to the support plate 21 in the direction of travel 22 of the floor cleaning device 10 via a step 23 Connect the bottom surface 19 of the support plate 24 and an end wall 25 oriented in the direction of the bottom surface 19.
  • a base plate 26 is held detachably on the chassis 12 by means of locking elements known per se and therefore not shown in the drawing, on the front end region 27 of which in the direction of travel 22 support rollers 29 are freely rotatably mounted.
  • the bottom plate 26 carries in its front region a threshold 31 which plunges into a suction opening 33 which extends through the bottom plate 26 and into which a substantially horizontally oriented suction channel 35 opens, which between the support plate 21, the step 23 and the support plate 24 on the one hand and the Bottom plate 26 on the other hand.
  • a dirt filter 37 is held within the suction channel 35 at an angle to its longitudinal direction.
  • the undercarriage 12 carries a suction turbine 40 with an upper turbine housing part 41 and a lower turbine housing part 42, which accommodate a turbine wheel 44 and an electric turbine drive 46 between them.
  • the turbine drive 46 is designed as an external rotor motor and comprises a stator 48 held non-rotatably on the upper part 46 of the turbine housing and a rotor 49 rotatably held on the stator 48 in the form of a hood 50 which overlaps the stator 48, on the inside of which faces the stator 48, permanent magnets 51 are fixed and on the latter the turbine wall 44 is held in a rotationally fixed manner.
  • the turbine wheel 44 can be driven to rotate about a turbine axis 54 by means of the turbine drive 46.
  • the turbine axis 54 is oriented obliquely to the vertical and thus also obliquely to the longitudinal extent of the suction channel 35.
  • An air inlet opening 56 of the suction turbine 40 is assigned to the turbine wheel 44.
  • the air inlet opening 56 is formed by an intake connection 58 which is integrally connected to the lower part 42 of the turbine housing and which establishes a flow connection between the suction duct 35 and the interior of the suction turbine 40.
  • the turbine wheel 44 is surrounded in the circumferential direction by an outlet duct 60, which is designed in a spiral shape and widens continuously in the direction of flow and opens into an air outlet opening 62, the mouth region 64 of the outlet duct 60 adjacent to the air outlet opening 62 also being inclined is aligned to the vertical.
  • a suction flow symbolized by the arrows 66 can be generated within the suction channel 35, with the aid of which dirt can be transferred from the floor surface 19 to be cleaned via the suction opening 33 into the suction channel 35.
  • the region of the suction channel 35 arranged upstream of the dirt filter 37 in this case forms a dirt holding container 67.
  • a brush roller 68 is rotatably held on the chassis 12 in the area of the suction opening 33 with an axis of rotation oriented transversely to the direction of travel 22 and parallel to the floor surface 19.
  • the brush roller 68 is driven by means of a Electrical brush drive 69 positioned on the support plate 24, which is coupled to the brush roller 68 via a drive belt known per se and therefore not shown in the drawing.
  • suction flow 66 suffers only slight flow losses in the area of the suction channel 35 and of the suction nozzle 58 oriented obliquely to the vertical, a strong suction flow can be achieved in the area of the suction opening 33, which in combination with the brush roller 68 brings about effective floor cleaning.
  • the dirt whirled up by the brush roller 68 is detected by the suction flow and transferred into the dirt holding container 67.
  • the alignment of the suction turbine 40 with the turbine axis 54 running obliquely to the vertical enables the use of a relatively large turbine wheel 44, but the overall height of the floor cleaning device 10 can be kept low.

Landscapes

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

Abstract

L'invention concerne un appareil de nettoyage de sols (10) comprenant une turbine d'aspiration (40) présentant une roue de turbine (44) entraînée en rotation autour d'un axe de turbine (54), ainsi qu'un conduit d'aspiration (35) orienté sensiblement horizontalement, par l'intermédiaire duquel la turbine d'aspiration (40) est en communication permettant une circulation de fluide avec un orifice d'aspiration (33) dirigé vers la surface du sol à nettoyer, le conduit d'aspiration formant un collecteur de salissures (67) et permettant de loger un filtre à salissures (37). En vue d'obtenir un appareil de nettoyage de sols (10) d'un encombrement en hauteur aussi réduit que possible, tout en ayant un courant d'aspiration aussi élevé que possible dans la zone de l'orifice d'aspiration (33), l'invention est caractérisée en ce que la turbine d'aspiration (40) est montée sur le conduit d'aspiration (35) de telle façon que l'axe de turbine (54) soit orienté obliquement par rapport à la verticale.
PCT/EP2002/002127 2001-03-07 2002-02-28 Appareil de nettoyage de sols WO2002069774A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02703606A EP1365674B1 (fr) 2001-03-07 2002-02-28 Appareil de nettoyage de sols de faible hauteur
DE50213166T DE50213166D1 (de) 2001-03-07 2002-02-28 Bodenreinigungsgerät mit geringer bauhöhe
US10/641,734 US20040074044A1 (en) 2001-03-07 2003-08-15 Floor cleaning appliance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10110907A DE10110907A1 (de) 2001-03-07 2001-03-07 Bodenreinigungsgerät
DE10110907.5 2001-03-07

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/641,734 Continuation US20040074044A1 (en) 2001-03-07 2003-08-15 Floor cleaning appliance

Publications (1)

Publication Number Publication Date
WO2002069774A1 true WO2002069774A1 (fr) 2002-09-12

Family

ID=7676577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/002127 WO2002069774A1 (fr) 2001-03-07 2002-02-28 Appareil de nettoyage de sols

Country Status (6)

Country Link
US (1) US20040074044A1 (fr)
EP (1) EP1365674B1 (fr)
CN (1) CN1239119C (fr)
AT (1) ATE418902T1 (fr)
DE (2) DE10110907A1 (fr)
WO (1) WO2002069774A1 (fr)

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US7288912B2 (en) 2004-01-28 2007-10-30 Irobot Corporation Debris sensor for cleaning apparatus
WO2009095055A1 (fr) * 2008-02-01 2009-08-06 Alfred Kärcher Gmbh & Co. Kg Appareil de nettoyage de sols à faible niveau sonore
US8239992B2 (en) 2007-05-09 2012-08-14 Irobot Corporation Compact autonomous coverage robot
US8368339B2 (en) 2001-01-24 2013-02-05 Irobot Corporation Robot confinement
US8374721B2 (en) 2005-12-02 2013-02-12 Irobot Corporation Robot system
US8380350B2 (en) 2005-12-02 2013-02-19 Irobot Corporation Autonomous coverage robot navigation system
US8382906B2 (en) 2005-02-18 2013-02-26 Irobot Corporation Autonomous surface cleaning robot for wet cleaning
US8386081B2 (en) 2002-09-13 2013-02-26 Irobot Corporation Navigational control system for a robotic device
US8387193B2 (en) 2005-02-18 2013-03-05 Irobot Corporation Autonomous surface cleaning robot for wet and dry cleaning
US8390251B2 (en) 2004-01-21 2013-03-05 Irobot Corporation Autonomous robot auto-docking and energy management systems and methods
US8396592B2 (en) 2001-06-12 2013-03-12 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
US8412377B2 (en) 2000-01-24 2013-04-02 Irobot Corporation Obstacle following sensor scheme for a mobile robot
US8417383B2 (en) 2006-05-31 2013-04-09 Irobot Corporation Detecting robot stasis
US8418303B2 (en) 2006-05-19 2013-04-16 Irobot Corporation Cleaning robot roller processing
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US8463438B2 (en) 2001-06-12 2013-06-11 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
US8474090B2 (en) 2002-01-03 2013-07-02 Irobot Corporation Autonomous floor-cleaning robot
US8584305B2 (en) 2005-12-02 2013-11-19 Irobot Corporation Modular robot
US8600553B2 (en) 2005-12-02 2013-12-03 Irobot Corporation Coverage robot mobility
US8780342B2 (en) 2004-03-29 2014-07-15 Irobot Corporation Methods and apparatus for position estimation using reflected light sources
US8788092B2 (en) 2000-01-24 2014-07-22 Irobot Corporation Obstacle following sensor scheme for a mobile robot
US8793020B2 (en) 2002-09-13 2014-07-29 Irobot Corporation Navigational control system for a robotic device
US8874264B1 (en) 2004-07-07 2014-10-28 Irobot Corporation Celestial navigation system for an autonomous robot
US8930023B2 (en) 2009-11-06 2015-01-06 Irobot Corporation Localization by learning of wave-signal distributions
US8966707B2 (en) 2005-02-18 2015-03-03 Irobot Corporation Autonomous surface cleaning robot for dry cleaning
US9008835B2 (en) 2004-06-24 2015-04-14 Irobot Corporation Remote control scheduler and method for autonomous robotic device
US9223749B2 (en) 2004-07-07 2015-12-29 Irobot Corporation Celestial navigation system for an autonomous vehicle
CN105848549A (zh) * 2013-12-06 2016-08-10 阿尔弗雷德·凯驰两合公司 自行驶且自转向的地板清洁设备和清洁系统
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US10314449B2 (en) 2010-02-16 2019-06-11 Irobot Corporation Vacuum brush

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EP2816434A3 (fr) * 2005-12-02 2015-01-28 iRobot Corporation Robot à couverture autonome
JP5073609B2 (ja) * 2008-08-11 2012-11-14 日東電工株式会社 光導波路の製造方法
WO2014094834A1 (fr) 2012-12-18 2014-06-26 Alfred Kärcher Gmbh & Co. Kg Appareil de nettoyage de sol automoteur et autoguidé
JP6391976B2 (ja) * 2014-04-22 2018-09-19 東芝ライフスタイル株式会社 電気掃除機
DE102015105587A1 (de) * 2015-04-13 2016-10-13 Alfred Kärcher Gmbh & Co. Kg Bodenreinigungsmaschine
US10188247B2 (en) * 2015-12-10 2019-01-29 Jiangsu Midea Cleaning Appliances Co., Ltd. Upright vacuum cleaner
US10292554B2 (en) 2016-10-28 2019-05-21 Irobot Corporation Mobile cleaning robot with a bin
CN107725480A (zh) * 2017-04-10 2018-02-23 宁波华宝海之创机器人科技有限公司 一种具有吸附力强的扫地机的风扇机构

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US8478442B2 (en) 2000-01-24 2013-07-02 Irobot Corporation Obstacle following sensor scheme for a mobile robot
US9446521B2 (en) 2000-01-24 2016-09-20 Irobot Corporation Obstacle following sensor scheme for a mobile robot
US8788092B2 (en) 2000-01-24 2014-07-22 Irobot Corporation Obstacle following sensor scheme for a mobile robot
US8761935B2 (en) 2000-01-24 2014-06-24 Irobot Corporation Obstacle following sensor scheme for a mobile robot
US9144361B2 (en) 2000-04-04 2015-09-29 Irobot Corporation Debris sensor for cleaning apparatus
US9038233B2 (en) 2001-01-24 2015-05-26 Irobot Corporation Autonomous floor-cleaning robot
US9622635B2 (en) 2001-01-24 2017-04-18 Irobot Corporation Autonomous floor-cleaning robot
US8686679B2 (en) 2001-01-24 2014-04-01 Irobot Corporation Robot confinement
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US9104204B2 (en) 2001-06-12 2015-08-11 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
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US8463438B2 (en) 2001-06-12 2013-06-11 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
US8474090B2 (en) 2002-01-03 2013-07-02 Irobot Corporation Autonomous floor-cleaning robot
US8671507B2 (en) 2002-01-03 2014-03-18 Irobot Corporation Autonomous floor-cleaning robot
US8656550B2 (en) 2002-01-03 2014-02-25 Irobot Corporation Autonomous floor-cleaning robot
US8516651B2 (en) 2002-01-03 2013-08-27 Irobot Corporation Autonomous floor-cleaning robot
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US9949608B2 (en) 2002-09-13 2018-04-24 Irobot Corporation Navigational control system for a robotic device
US8428778B2 (en) 2002-09-13 2013-04-23 Irobot Corporation Navigational control system for a robotic device
US8793020B2 (en) 2002-09-13 2014-07-29 Irobot Corporation Navigational control system for a robotic device
US8781626B2 (en) 2002-09-13 2014-07-15 Irobot Corporation Navigational control system for a robotic device
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EP1365674A1 (fr) 2003-12-03
EP1365674B1 (fr) 2008-12-31
CN1239119C (zh) 2006-02-01
CN1494392A (zh) 2004-05-05
US20040074044A1 (en) 2004-04-22
ATE418902T1 (de) 2009-01-15
DE50213166D1 (de) 2009-02-12

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