EP0865252A1 - Vacuum cleaner nozzle - Google Patents

Vacuum cleaner nozzle

Info

Publication number
EP0865252A1
EP0865252A1 EP96935732A EP96935732A EP0865252A1 EP 0865252 A1 EP0865252 A1 EP 0865252A1 EP 96935732 A EP96935732 A EP 96935732A EP 96935732 A EP96935732 A EP 96935732A EP 0865252 A1 EP0865252 A1 EP 0865252A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
brush
vacuum cleaner
working surface
motion
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.)
Withdrawn
Application number
EP96935732A
Other languages
German (de)
English (en)
French (fr)
Inventor
Lars Moren
Ake Arvidsson
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Publication of EP0865252A1 publication Critical patent/EP0865252A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0666—Nozzles with fixed, e.g. adjustably fixed brushes or the like with tilting, floating or similarly arranged brushes, combs, lips or pads

Definitions

  • the present invention relates to a vacuum cleaner nozzle adapted to contact a working surface, said vacuum cleaner nozzle including a brush nozzle having edge portions provided in the area of the longitudinal sides of the brush nozzle.
  • the brush nozzle In known vacuum cleaner nozzles of the type mentioned above the brush nozzle is normally provided with a circumferential brush rim. In operative position of the brush nozzle the brush rim contacts the working surface along its entire circumference. However, the brush rim might have certain interrupted portions to promote so called edge cleaning or facilitate for particles or the like to enter inside the brush rim.
  • a tube shaft is normally connected to the vacuum cleaner nozzle via a tube connection that is pivotable relative to the vacuum cleaner nozzle to allow the tube shaft to be angled, within certain limits, relative to the vacuum cleaner nozzle and thus not affecting the contact of the brush rim against the working surface. This means that during normal handling of the tube shaft in connection with vacuum cleaning and the brush rim being in active position, the entire circumference of the brush rim will contact the working surface.
  • the aim of the present invention is to present a vacuum cleaner nozzle of the above- mentioned type where it is guaranteed that particles to be sucked enter inside the brush rim when the brush nozzle is in active position.
  • a vacuum cleaner nozzle according to the present invention also makes so called edge cleaning possible.
  • Fig. la discloses a top view from beneath of the vacuum cleaner nozzle according to the invention when said nozzle is displaced in the given direction of motion, the gliding plate being removed to increase the clarity
  • Fig. lb shows a section along lb-lb in Fig.
  • Fig.2a shows a top view from beneath of the vacuum cleaner nozzle according to the invention when said nozzle is displaced in the given direction of motion, the gliding plate being removed to increase the clarity
  • Fig.2b shows a section along Ilb-IIb in Fig.2a
  • Fig.a and 3b show schematic side views of an alternative embodiment of the invention
  • Fig.4 shows a top view from beneath of the embodiment according to Fig.3a and 3b, the gliding plate being removed to increase the clarity.
  • the vacuum cleaner nozzle 10 includes a brush nozzle 12 and a flat nozzle 14, said nozzle 10 being adjustable in such a way that either the brush nozzle 12 contacts the working surface, via a brush rim 16, or the flat nozzle 14 contacts the working surface, via a gliding plate 18.
  • the adjustment of the nozzle 10 is either effected manually or automatically, e.g. by registering the vacuum at the working surface.
  • the vacuum cleaner nozzle in such a way that the brush rim 16 of the brush nozzle 12 is capable to assume several fixed vertical positions and even that the brush rim 16 is continously displacable vertically. Also in these cases the adjustment may be effected manually or automatically. Other arrangements of the adjustment of the brush nozzle/flat nozzle are possible within the scope of the invention. Thus the above given examples are not to be interpreted in a restricting sense.
  • Figs.la, lb, 2a, 2b all show the position of the vacuum cleaner nozzle 10 where the brush nozzle 12 contacts the working surface.
  • the brush rim 16 includes two stationary end portions 16a and two intermediate longitudinal edge portions 16b and 16c, said portions being movable relative to the stationary end portions 16a.
  • the movable edge portions 16b and 16c can have a length that constitutes a varying part of the width of the nozzle, i.e. it is e.g. in 03 possible that the movable edge portions 16a, 16c extend along the entire longitudinal sides of the nozzle.
  • the stationary end portions of the brush rim 16 are provided with edge cleaning openings 20 that are created by removing a portion of the brush rim 16.
  • the edge cleaning openings 20 not at all is a prerequisite for the present invention.
  • the stationary end portions 16a and the movable edge portions 16b and 16c as a unit can be displaced relative to the flat nozzle 14 in connection with the adjustment of the nozzle 10 described above.
  • the movable edge portions 16b and 16c of the brush rim 16 are attached to a support plate 24 that is provided with an opening 26 straight in front of the suction opening in the casing (not shown in the figures) of the vacuum cleaner nozzle 10.
  • a support plate 24 that is provided with an opening 26 straight in front of the suction opening in the casing (not shown in the figures) of the vacuum cleaner nozzle 10.
  • two sliding shoes 28 are provided, said shoes 28 being pivotable relative to separate shanks 30, that are attached to the support plate 24 via separate support means 32.
  • the sliding shoes 28 have an upper attachment portion 34 that receives the shank 30, and further a downwardly extending control element 36 that receives an exchangeable tongue 38 of a resilient material, said tongue 38 being adapted to contact the working surface.
  • the tongue 38 is fixed in the control element 36 via a locking screw 40.
  • each movable edge portion 16b and 16c of the brush rim 16 two sheet metal pieces 42 are attached, said metal pieces being located right in front of the adherent sliding shoe 28.
  • Said sheet metal pieces 42 are preferably designed as integral parts of the movable edge portions 16a, 16c.
  • the ends of the sheet metal pieces 42 that face the sliding shoe 28 have a recess creating two fingers 44 of each sheet metal piece 42, said fingers 44 on both sides surrounding the attachment portion 34 of the sliding shoes 28.
  • the attachment portion 34 of the sliding shoes 28 are on both sides provided with through-going pins 46 arranged in pairs. Each pair of pins 46 receive between themselves the fingers 44 of a sheet metal piece 42.
  • the sliding shoes 28 assume a predetermined end position depending on the direction of motion disclosed in the figures, i.e. due to the friction cooperation between the tongue 38 and the working surface the sliding shoes 28 move between their end positions.
  • the sliding shoes 28 assume the position shown in Fig.la the movable portion 16b of the brush rim 16 that is located in front in the direction of motion is elevated somewhat from the working surface.
  • the stationary end portion 16a of the brush rim 16 permanently contacts the working surface when the brush rim 16 is in active position.
  • support at the ends of the vacuum cleaner nozzle is achieved when the edge portions 16b and 16 c perform their syncronized tilting movement.
  • Fig.2b the syncronized tilting movement of a vacuum cleaner nozzle according to the invention is shown, the direction of motion for the vacuum cleaner nozzle being the one shown in Figs.2a and 2b.
  • the sliding shoes 28 Due to the friction between the tongues 38 and the working surface the sliding shoes 28 have adjusted to the position shown in Fig.2b.
  • the edge portion 16c will be elevated while the edge portion 16b will be brought into contact with the working surface.
  • the syncronized tilting movement is completely analogue to the one described above in connection with Fig.lc. Reference is therefore made to what has been said above in that respect.
  • a front edge portion, seen in the direction of motion, of the brush rim will be elevated from the working surface while a rear edge portion, seen in the direction of motion, is urged against the working surface.
  • a vacuum cleaner nozzle is a so called combination nozzle, i.e. a brush nozzle and a flat nozzle. Since the invention refers to a structural design of the brush nozzle it is only necessary that the vacuum cleaner nozzle according to the present invention includes a brush nozzle.
  • the intermediate portions of the brush rim are movable while the end portions of the brush rim of the vacuum cleaner nozzle are stationary.
  • the entire brush rim tilts as a unit in such a way that its front and rear edges repectively are given said syncronized tilting movement according to the invention.
  • a holder means 50' is attached to the schematically shown flat nozzle 14', that in the position according to Fig.3a and 3b is elevated from the ground.
  • a bearing wheel 52' is rotatably supported by the holder means 50' and contacts the ground.
  • a flexible, friction increasing element 54' e.g. an O-ring may be mounted along the periphery of the bearing wheel 52'.
  • the bearing wheel meshes with a switch wheel 56' that, via its centre of rotation 57', is rotatably supported by the holder means 50'.
  • a yoke 58' the brush rim 16' is carried by the switch wheel 56', said yoke 58' being fixed to the switch wheel 56' in such a way that when the switch wheel 56' rotates around its centre of rotation 57' the yoke 58' and the brush rim 16' are also rotationally driven, i.e. also the brush rim 16' rotates around the centre of rotation 57'.
  • the nozzle 10' is also provided with a slipping device (not shown) that enters into operation when the brush rim 16' has reached one of the two end positions of the tilting movement.
  • the nozzle 10' is also provided with sliding bars 60' or the like that in principle have the same function as the stationary end portions 16a of the brush rim according to the previous described embodiment, i.e. the sliding bars 60' permanently rest against the ground when the brush rim 16' performs its tilting movement.
  • Figs.3a and 3b the tilting movement of the brush rim 16' is illustrated for different directions of moition.
  • the bearing wheel moves in direction of the arrow 62' and consequently the switch wheel 56' moves in direction of the arrow 64'.
  • a tilting in reverse direction takes place for a direction of motion according to Fig.3b.
  • the syncronized movement of the brush rim is controlled by the aid of means that cooperate with the working surface.
  • these means may be designed differently and besides the sliding shoes and bearing wheels shown in the disclosed embodiments other types of means are possible, said means contacting the working surface in active position of the brush nozzle and being in a convenient way connected to the movable parts of the brush rim in order to achieve the required tilting movement.
  • the tilting movement of the brush rim is controlled by means that not physically cooperate with the working surface, i.e. some kind of non-touching sensing means that register the direction of motion of the nozzle.
  • Such means could consist of a mechanical or electronical acceleration sensor that registers the direction of motion of the nozzle.
  • Said acceleration sensor activates e.g. a micro motor or an electromagnet that provides a syncronized tilting movement, i.e. the front edge portion, seen in the direction of motion, is elevated from the ground while the rear edge portion, seen in the direction of motion, is lowered against the ground.
  • the nozzle according to the embodiments described above includes a closed, substantially circumferential brush rim.
  • the brush rim can have openings for edge cleaning.
  • Such a closed brush rim includes longitudinal edge portions along the two longitudinal sides of the nozzle.
  • the nozzle instead of a closed brush rim includes two separate, parallel edge portions along the longitudinal sides of the nozzle. Said edge portions perform a syncronized elevating/lowering movement, the front edge portion, seen in the direction of motion, is elevated while the rear edge portion, seen in the direction of motion, is lowered.
EP96935732A 1995-10-27 1996-10-18 Vacuum cleaner nozzle Withdrawn EP0865252A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9503800 1995-10-27
SE9503800A SE505115C2 (sv) 1995-10-27 1995-10-27 Dammsugarmunstycke innefattande ett borstmunstycke och förfarande för att åstadkomma sugning utefter borstmunstyckets, i rörelseriktningen sett, främre kant
PCT/SE1996/001336 WO1997015224A1 (en) 1995-10-27 1996-10-18 Vacuum cleaner nozzle

Publications (1)

Publication Number Publication Date
EP0865252A1 true EP0865252A1 (en) 1998-09-23

Family

ID=20399997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96935732A Withdrawn EP0865252A1 (en) 1995-10-27 1996-10-18 Vacuum cleaner nozzle

Country Status (5)

Country Link
EP (1) EP0865252A1 (sv)
AU (1) AU7354596A (sv)
PL (1) PL326391A1 (sv)
SE (1) SE505115C2 (sv)
WO (1) WO1997015224A1 (sv)

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US8412377B2 (en) 2000-01-24 2013-04-02 Irobot Corporation Obstacle following sensor scheme for a mobile robot
DE10003883C1 (de) * 2000-01-29 2001-08-30 Kaercher Gmbh & Co Alfred Reinigungskopf für ein Bodenreinigungsgerät
US6956348B2 (en) 2004-01-28 2005-10-18 Irobot Corporation Debris sensor for cleaning apparatus
US7571511B2 (en) 2002-01-03 2009-08-11 Irobot Corporation Autonomous floor-cleaning robot
US6690134B1 (en) 2001-01-24 2004-02-10 Irobot Corporation Method and system for robot localization and confinement
US7429843B2 (en) 2001-06-12 2008-09-30 Irobot Corporation Method and system for multi-mode coverage for an autonomous robot
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US9128486B2 (en) 2002-01-24 2015-09-08 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
US8386081B2 (en) 2002-09-13 2013-02-26 Irobot Corporation Navigational control system for a robotic device
US7332890B2 (en) 2004-01-21 2008-02-19 Irobot Corporation Autonomous robot auto-docking and energy management systems and methods
US7720554B2 (en) 2004-03-29 2010-05-18 Evolution Robotics, Inc. Methods and apparatus for position estimation using reflected light sources
ATE536577T1 (de) 2004-06-24 2011-12-15 Irobot Corp Fernbediente ablaufsteuerung und verfahren für eine autonome robotervorrichtung
US8972052B2 (en) 2004-07-07 2015-03-03 Irobot Corporation Celestial navigation system for an autonomous vehicle
US7706917B1 (en) 2004-07-07 2010-04-27 Irobot Corporation Celestial navigation system for an autonomous robot
US7620476B2 (en) 2005-02-18 2009-11-17 Irobot Corporation Autonomous surface cleaning robot for dry cleaning
US8392021B2 (en) 2005-02-18 2013-03-05 Irobot Corporation Autonomous surface cleaning robot for wet cleaning
KR101240732B1 (ko) 2005-02-18 2013-03-07 아이로보트 코퍼레이션 습식 및 건식 청소를 위한 자동 표면 청소 로봇
US8930023B2 (en) 2009-11-06 2015-01-06 Irobot Corporation Localization by learning of wave-signal distributions
WO2007065034A1 (en) 2005-12-02 2007-06-07 Irobot Corporation Modular robot
EP2065774B1 (en) 2005-12-02 2013-10-23 iRobot Corporation Autonomous coverage robot navigation system
US8374721B2 (en) 2005-12-02 2013-02-12 Irobot Corporation Robot system
US7441298B2 (en) 2005-12-02 2008-10-28 Irobot Corporation Coverage robot mobility
ES2693223T3 (es) 2006-05-19 2018-12-10 Irobot Corporation Eliminación de residuos de robots de limpieza
US8417383B2 (en) 2006-05-31 2013-04-09 Irobot Corporation Detecting robot stasis
ATE545356T1 (de) * 2006-12-21 2012-03-15 Koninkl Philips Electronics Nv Reinigungsdüse und verfahren zum staubsaugen
EP2995235B1 (en) 2007-05-09 2021-08-11 iRobot Corporation Compact autonomous coverage robot
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CN104127156B (zh) 2010-02-16 2017-01-11 艾罗伯特公司 真空吸尘器毛刷
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Also Published As

Publication number Publication date
AU7354596A (en) 1997-05-15
WO1997015224A1 (en) 1997-05-01
SE505115C2 (sv) 1997-06-30
PL326391A1 (en) 1998-09-14
SE9503800D0 (sv) 1995-10-27
SE9503800L (sv) 1997-04-28

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