EP2147626A2 - Staubsauger - Google Patents

Staubsauger Download PDF

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Publication number
EP2147626A2
EP2147626A2 EP09166295A EP09166295A EP2147626A2 EP 2147626 A2 EP2147626 A2 EP 2147626A2 EP 09166295 A EP09166295 A EP 09166295A EP 09166295 A EP09166295 A EP 09166295A EP 2147626 A2 EP2147626 A2 EP 2147626A2
Authority
EP
European Patent Office
Prior art keywords
agitator
vacuum cleaner
motor
assembly
rotation
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Withdrawn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
EP09166295A
Other languages
English (en)
French (fr)
Inventor
Alexander Anthony Denny Bassett
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.)
Hoover Ltd
Original Assignee
Hoover Ltd
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 Hoover Ltd filed Critical Hoover Ltd
Publication of EP2147626A2 publication Critical patent/EP2147626A2/de
Withdrawn legal-status Critical Current

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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
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating 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
    • 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
    • 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
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0433—Toothed gearings
    • 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
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0444—Gearing or transmission means therefor for conveying motion by endless flexible members, e.g. belts
    • 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
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • A47L9/2863—Control elements activated by pivoting movement of the upright vacuum cleaner handle

Definitions

  • This invention relates to a vacuum cleaner.
  • a typical upright vacuum cleaner comprises an upright portion pivotally connected at its lower end to a wheeled floor-engaging portion for partial rotation forwardly and rearwardly about a transverse axis.
  • the floor-engaging portion encloses a motor/fan unit which draws air into a dust separation device through an inlet in the floor-engaging portion of the cleaner.
  • a handle is provided at the upper end of the upright portion for pushing the cleaner to and fro.
  • a motor-driven rotary agitator brush is mounted across the inlet in the floor-engaging portion to beat and sweep the floor in the region of the airflow into the cleaner.
  • the rotary agitator brush is driven by a belt interconnecting the motor spindle and a pulley on the agitator.
  • a typical cylinder vacuum cleaner comprises a body which encloses a motor/fan unit which draws air into a dust separation device through an elongate flexible hose.
  • a plurality of tools are provided for fitting to the end of the hose.
  • Upright vacuum cleaners are better at cleaning carpets than cylinder vacuum cleaners because of the action of the rotating agitator brush.
  • cylinder vacuum cleaners are better suited for above-floor cleaning and for cleaning in places where an upright cleaner cannot be used.
  • an upright cleaner having the advantages of both upright and cylinder cleaners, it is known to provide an upright cleaner having an elongate flexible hose which can either be connected to the floor-engaging portion of the cleaner for conventional floor cleaning, or connected to an extension tube and/or cleaning tools for above-floor cleaning.
  • GB2196836 discloses a two-belt agitator drive whereby a freely-rotating idler pulley is present on an intermediate shaft, and a mechanical arrangement provided to shift the belt laterally onto the idler pulley to disengage the drive.
  • the belt-shifting is affected by a shifting fork having a pair of arms that enclose the belt.
  • the position of the shifting fork is determined by whether the upright cleaner body is in its upright position (i.e. parked or in use for above-floor cleaning with a hose) or is inclined for floor cleaning.
  • the position is also determined by the momentary setting of an agitator stop pedal mounted on the floor-engaging portion of the cleaner
  • United Kingdom patent GB 2089463 discloses an agitator drive system for an upright vacuum cleaner incorporating two drive belts and a speed-reduction pulley unit mounted on a pivoted arm.
  • the primary belt is of resilient material. Should rotation of the agitator become blocked during use, increased tension in the secondary belt causes the speed-reduction pulley unit to be pulled towards the agitator, the resilience of the primary belt permitting this movement, with the result that the secondary belt is relieved of tension. Stalling of the motor shaft on occurrence of a blocked agitator is thus avoided, and the danger of burned-through or broken belts substantially eliminated.
  • the object of the present invention is to provide an agitator control system for an upright vacuum cleaner whereby on/off switching of the agitator, without switching of the motor, is automatically effected in response to inclination of the upright body of the cleaner, and can also be effected independently of the inclination of the cleaner body by means of a pedal, the agitator drive further providing immunity from belt damage and motor stalling in the event of agitator blockage.
  • a vacuum cleaner comprising:
  • the drive between the motor and the agitator is disconnected by pivoting the pulley assembly into said second position, such that the axis of rotation of the pulley moves away from the motor and towards the agitator to slacken said second belt, said first belt being resiliently extendable.
  • a displacement means acts on the assembly to move the latter into said second position, the assembly preferably being arranged to return to said first position under the applied bias of said first belt.
  • the displacement means pivotably mounted to the floor-engaging head portion and is arranged to be rotationally driven by said upright body portion or said actuator to disconnect the drive between the motor and the agitator.
  • the displacement means is geared to an operating gear rotationally coupled to said upright body portion, the coupling preferably being arranged to permit the upright body portion to pivot independently of the operating gear when said externally-operable actuator is operated.
  • the displacement means is geared to the operating gear via an intermediate gear.
  • the externally-operable actuator acts directly the displacement means.
  • the actuator comprises an portion for engagement by the user and an operating portion which acts on the displacement means, said engagement portion being biassed away from the operating portion into a rest position, said operating portion being moveable by said engagement portion and being lockable in position by a toggle mechanism when said engagement portion returns to said rest position under the applied bias. In this manner the actuator does not visibly move as the displacement means is operated by the pivoting of the upright portion of the cleaner.
  • an upright vacuum cleaner comprising an upright portion 10 pivotally connected at its lower end to a floor-engaging portion 11 for partial rotation forwardly and rearwardly about a transverse axis between parked and in-use positions ( Figures 1 and 2 respectively).
  • the floor-engaging portion comprises a dirty air inlet 12 which is connected to a suction source (not shown).
  • a rotary agitator 13 is mounted across the dirty air inlet 12 for beating and sweeping the floor surface.
  • a motor drives the agitator via motor output shaft 14.
  • the motor preferably also drives a fan unit (not shown) which creates the suction at the dirty air inlet 12.
  • a pulley assembly 15 comprises an arm 17 which is pivotably mounted at one end to the floor-engaging portion 11 for rotation between first and second positions about an axis which extends parallel to the axes of rotation of the agitator 13 and motor shaft 14.
  • An idler pulley 16 is rotationally mounted to the opposite end of the arm 17.
  • the idler pulley 16 comprises a first axial portion connected to the motor shaft 14 by a first drive belt 18 and a second axial portion which is connected to the agitator 13 by a second drive belt 19.
  • the diameter of the first axial portion is greater than the diameter second axial portion, so as to reduce the drive speed to the second belt 19.
  • the first belt 18 is formed of a resiliently extendable elastomeric material and the belt 18 acts on the rotatable pulley assembly 15 to bias it in a counter-clockwise direction into the first position shown in Figure 1 .
  • the bias also acts to pull the second belt 19 into a taught condition so that the motor drive is applied to the agitator 13 via the pulley 16.
  • a displacement member 20 is pivotably mounted to the floor-engaging head portion 11.
  • the displacement member 20 comprises a projecting arm 21 which abuts the outer end of the arm 17 of the pulley assembly 15 and which extends radially from a toothed drive wheel 22.
  • the toothed drive wheel 22 is geared via an intermediate gear 28 to an operating gear 23 which is freely rotationally mounted on the support axle 24 of the upright body portion 10.
  • the operating gear 23 comprises a radially inwardly projecting lug 25 which only engages a radially outwardly projecting lug 26 on the axle 24 in the last 20 degrees of movement as the upright portion 10 is brought into the fully upright position.
  • the displacement member 20 comprises a second projecting arm 27 which abuts an engagement member 29 of a foot pedal assembly 30.
  • the foot pedal assembly 30 further comprises a pivotable member 31 for operation by the user's foot.
  • a spring (not shown) acts between the operating and engagement members 29,31 to bias the pivotable engagement member 31 outwardly (to the right as shown in Figure 1 ) into a rest position.
  • the spring also acts to bias the engagement member 29 against the second projecting arm 27. In this manner the actuator 30 does not visibly move as the displacement member 22 is operated by the pivoting of the upright portion 10 of the cleaner.
  • a vacuum cleaner in accordance with this invention is uncomplicated in construction yet provides an agitator control system whereby on/off switching of the agitator, without switching of the motor, is automatically effected in response to inclination of the upright body of the cleaner, and can also be effected independently of the inclination of the cleaner body by means of a pedal, the agitator drive further providing immunity from belt damage and motor stalling in the event of agitator blockage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP09166295A 2008-07-25 2009-07-24 Staubsauger Withdrawn EP2147626A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0813657A GB2462123B8 (en) 2008-07-25 2008-07-25 Vacuum cleaner

Publications (1)

Publication Number Publication Date
EP2147626A2 true EP2147626A2 (de) 2010-01-27

Family

ID=39746944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09166295A Withdrawn EP2147626A2 (de) 2008-07-25 2009-07-24 Staubsauger

Country Status (4)

Country Link
US (1) US20100017999A1 (de)
EP (1) EP2147626A2 (de)
CN (1) CN101632568A (de)
GB (1) GB2462123B8 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2376283T3 (en) 2008-12-19 2017-08-21 Fiber Composites Llc WOOD PLASTIC COMPOSITIONS WITH IONOMER COAT MATERIALS AND METHODS OF MANUFACTURING
US8756757B2 (en) 2011-09-07 2014-06-24 Bissell Homecare, Inc. Vacuum cleaner with belt drive disengager
GB2498764B (en) * 2012-01-27 2014-12-10 Dyson Technology Ltd Cleaner head for a cleaning appliance
US9723961B1 (en) * 2013-01-18 2017-08-08 Bissell Homecare, Inc. Vacuum cleaner
US9737187B2 (en) * 2014-02-04 2017-08-22 Techtronic Floor Care Technology Limited Extractor cleaning machine
WO2017096718A1 (zh) * 2015-12-10 2017-06-15 江苏美的清洁电器股份有限公司 立式吸尘器
US10438433B2 (en) * 2016-06-30 2019-10-08 Hart Intercivic, Inc. System and method for electronic voting network having physical port blockers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089463A (en) 1980-11-28 1982-06-23 Hoover Ltd Pulley arrangement for suction cleaners
GB2196536A (en) 1986-08-04 1988-05-05 You Chin San Squash racket
GB2196836A (en) 1986-11-06 1988-05-11 Hoover Plc Vacuum cleaner with belt shifting mechanism
US20060174439A1 (en) 2005-02-05 2006-08-10 Bian Zhuang Power nozzle for a floor cleaning apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601698A (en) * 1949-05-17 1952-07-01 Hoover Co Suction cleaner with agitator disconnect
US6131238A (en) * 1998-05-08 2000-10-17 The Hoover Company Self-propelled upright vacuum cleaner with offset agitator and motor pivot points

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089463A (en) 1980-11-28 1982-06-23 Hoover Ltd Pulley arrangement for suction cleaners
GB2196536A (en) 1986-08-04 1988-05-05 You Chin San Squash racket
GB2196836A (en) 1986-11-06 1988-05-11 Hoover Plc Vacuum cleaner with belt shifting mechanism
US20060174439A1 (en) 2005-02-05 2006-08-10 Bian Zhuang Power nozzle for a floor cleaning apparatus

Also Published As

Publication number Publication date
GB2462123A (en) 2010-01-27
US20100017999A1 (en) 2010-01-28
GB2462123B (en) 2012-05-23
GB2462123B8 (en) 2012-06-20
GB0813657D0 (en) 2008-09-03
CN101632568A (zh) 2010-01-27

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