WO2004008933A1 - Aspirateur - Google Patents

Aspirateur Download PDF

Info

Publication number
WO2004008933A1
WO2004008933A1 PCT/GB2003/003297 GB0303297W WO2004008933A1 WO 2004008933 A1 WO2004008933 A1 WO 2004008933A1 GB 0303297 W GB0303297 W GB 0303297W WO 2004008933 A1 WO2004008933 A1 WO 2004008933A1
Authority
WO
WIPO (PCT)
Prior art keywords
receptacle
aperture
vacuum cleaner
cleaner
dust
Prior art date
Application number
PCT/GB2003/003297
Other languages
English (en)
Inventor
James Douglas Beck
Christopher Henderson
John Taylor
James Cowan Braid Ferguson
Original Assignee
Hoover Limited
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
Priority claimed from GB0217105A external-priority patent/GB0217105D0/en
Application filed by Hoover Limited filed Critical Hoover Limited
Priority to AU2003260711A priority Critical patent/AU2003260711A1/en
Publication of WO2004008933A1 publication Critical patent/WO2004008933A1/fr

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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1683—Dust collecting chambers; Dust collecting receptacles
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1418—Impermeable dust collecting bags

Definitions

  • This invention relates to a vacuum cleaner.
  • Vacuum cleaners have conventionally comprised a permeable dust bag, which filters and retains the dirt and dust drawn into the vacuum cleaner by the induced air flow.
  • vacuum cleaners it has become popular to provide vacuum cleaners, in which the separated dirt and dust is collected in a rigid dust receptacle that can be emptied and re-used.
  • Such arrangements alleviate the need to purchase and replace the dust bags.
  • a disadvantage of re-usable dust receptacles is that the receptacles are often dirty to handle and clouds of dirt and dust can be emitted into the atmosphere when the receptacles are emptied, with the obvious health risks.
  • WO98/35601 discloses a liner for the rigid dust receptacle of a cyclonic vacuum cleaner, which can be removed and discarded, thereby alleviating the above-mentioned problems.
  • the liner comprises an impermeable plastic bag, which is fitted inside a rigid container, with its neck turned over the rim of the container. The rim of the container is then engaged with the body of the cleaner.
  • An acknowledged problem of this arrangement is that the bag can severely reduce the dust capacity of the container if it is not fully fitted against the side walls thereof.
  • the internal volume of the container is often subjected to an air flow and this can cause the bag to invert and perhaps block the air outlet leading from the container.
  • the container can form the cyclonic separation chamber.
  • the presence of a bag can substantially affect the cyclonic action, unless the bag is held fully against the wall of the container.
  • WO98/35601 attempts to solve the above-mentioned problems by creating a zone of low air pressure between the liner and the wall of the container in which the bag is located.
  • the bag is held away from the floor of the container by means of a false floor and the space between the false floor and the bottom of the container is partially evacuated by means of a tube connecting the space to the inlet of the suction fan.
  • the false floor has a smaller diameter than the container, thereby providing a circumferential gap between the false floor and the wall of the container.
  • the plastic bag tends to be drawn into the gap by the suction applied to the space below the floor and is thus held firmly in position during use of the vacuum cleaner.
  • a vacuum cleaner comprising a rigid removable dust receptacle, at least a portion of the receptacle being moveable between first and second positions, an aperture being provided in the wall of the receptacle, which is arranged to register with a suction source on the body of the cleaner, only when the receptacle or said portion thereof is positioned in said first position.
  • the receptacle or a portion thereof When a liner, such as a plastic bag, is fitted to the receptacle, the receptacle or a portion thereof is positioned in the first position, so that the suction evacuates the air from between the liner and the wall of the receptacle, thereby drawing the bag tightly against the wall of the receptacle. When no liner is fitted, the receptacle or a portion thereof is positioned in the second position so that the suction source is disconnected from the receptacle.
  • a liner such as a plastic bag
  • the present invention is therefore extremely simple in construction and operation, yet avoids the above-mentioned problems of known vacuum cleaners.
  • the dust receptacle is moveable between said first and said second positions which are each operative positions, said aperture being arranged to register with said suction source on the body of the cleaner, only when the receptacle is positioned in said first operative position.
  • a seal is provided on the body of the cleaner, to seal the aperture when the receptacle is in said second position.
  • a seal is provided around the suction source to seal around the aperture when the receptacle is in said first position.
  • the two seals are provided on a one-piece member attached to a surface of the body of the cleaner.
  • the receptacle is rotatable between said first and second positions.
  • the aperture is provided on an arcuate wall of the receptacle, having a radius of curvature centred on the rotational axis of the receptacle.
  • the aperture In order to prevent dust from spilling out of the aperture when the receptacle is removed from the cleaner, the aperture preferably an area which is less than 10mm 2 . We have found that a circular aperture of 3mm in diameter is ideal .
  • a projection extends into the receptacle adjacent the aperture, in order to prevent the bag from being drawn into the aperture and thereby sealing the suction source.
  • the projection comprises a pair of ribs or fins provided on opposite sides of the aperture.
  • the air outlet conduit leading from the cyclone chamber to the fan generally passes the receptacle.
  • the suction source preferably comprises an aperture formed in the wall of the conduit, which communicates with the aperture in the receptacle when the latter is in said first position.
  • a vacuum cleaner having a suction source for generating air flow through a device for separating dirt and dust from the air flow, and a removable rigid dust receptacle for collecting the separated dust, wherein an air outlet conduit extends from the separating device to the suction source adjacent a wall of the receptacle, an aperture being provided in the wall of the receptacle to communicate with an aperture formed in the wall of the conduit .
  • the receptacle or a portion thereof is moveable between a first position in which the apertures communicate, and a second position in which the apertures are fluidly disconnected from each other.
  • Figure 1 is a perspective view of a vacuum cleaner in accordance with this invention.
  • Figure 2 is an exploded perspective view of the rear of a portion of the cleaner of Figure 1.
  • an upright vacuum cleaner comprising a wheeled suction head 10, to which a body portion 11 is pivoted for movement between an upright position and an inclined operative position.
  • a motor and fan are mounted in a bottom portion 12 of the body 11 of the cleaner.
  • a pair of upright support pillars 16, 17 extend upwardly from the bottom portion 12 of the body 11 of the cleaner and support an upper portion 13 of the body 11 of the cleaner.
  • a space is provided between the upper and lower portions 13, 12 for receiving a removable dirt collection bin
  • the upper portion 13 of the body 11 of the cleaner contains a cyclonic separation unit, which utilises the cylindrical wall of the bin 15 as a part of one of the separation stages.
  • the fan which is mounted inside the lower portion 12 of the body 11 of the cleaner, induces a reduced air pressure inside the support pillar 16, which also acts as a conduit.
  • the upper end of the conduit is connected to the outlet of the separation unit inside the upper portion 13 of the body 11 of the cleaner.
  • the inlet to the separation unit is connected to a flexible hose 14, which can either be connected to the suction head 10 or to a remote tool.
  • the bin 15 which is formed of transparent plastics material and has a cylindrical wall, rests on a circular base 18 provided on the body of the cleaner and is able to rotate about a central axis, which extends longitudinally of the body 11.
  • An aperture 20 is formed adjacent the bottom of the arcuate inner surface of the support pillar 16, which also acts as an air flow conduit between the fan and the outlet of the cyclone separator as hereinbefore described.
  • An apertured pad 21 of resiliently flexible elastomeric material is adhered over the aperture 20 and comprises a solid portion, which extends circumferentially of the arcuate surface, to one side of the aperture 20. The aperture in the pad is slightly elongated in the circumferential direction to allow for any misalignment of the pad.
  • the bin 15 comprises an aperture 22 adjacent the bottom of its cylindrical side wall.
  • a pair of ribs 23 extend axially along the interior surface of the cylindrical wall of the bin
  • a locating lug 24 projects axially upwards from the rim of the bin 15.
  • a disposable liner 25 in the form of a plastics bag can be fitted inside the bin 15, with its upper edge turned over the upper edge of the bin 15.
  • the bin 15 is then engaged with the body 11 of the cleaner, such that the projecting lug 24 thereon engages into a corresponding formation 27 formed on the exterior surface of a depending lip on the upper portion 13 of the body 11 of the cleaner.
  • the aperture 22 in the bin 15 communicates with the aperture 20 in the pillar
  • the pad 21 seals around the aperture 22 in the bin 15, so that a good fluid communication is achieved between the apertures 20, 22.
  • the elongated aperture in the pad 21 also allows some tolerance between the positioning of the apertures 20,22.
  • the apertures 20, 22 serve to apply this pressure differential across the bag 25, such that the bag is urged against the internal wall of the bin 15 during use. It has been found that a single small aperture of approximately 3mm in diameter is sufficient to create the necessary pressure conditions for the bag.
  • the ribs 23 on each side of the aperture 22 serve to support the bag 25 away from the vicinity of the aperture 22, thereby ensuring that the bag 25 does not block the aperture 22, whilst air is being extracted from the bin 15 following energisation of the cleaner.
  • the receptacle 15 can be removed, and the bag can be sealed by tightening a draw-string 26 provided around the neck of the bag 25.
  • the bag 25 can then be discarded.
  • the bin 15 In order to use the cleaner without a bag, the bin 15 must be engaged with the body 11 of the cleaner, such that the lug 24 on the bin 15 engages into a second formation 28, which is rotationally offset from the formation 27 by an angle of about 15 degrees. In this position, the aperture 22 in the wall of the bin 15 is sealed against the extended solid portion of the pad 21. The pad 21 thus prevents the flow of air through the aperture 22, as well as preventing the escape of any of the separated dirt and dust .
  • the size of the aperture 22 is so small that a negligible amount of dirt and dust escapes .
  • bag or “bagless” operation can be selected by moving a lever or flap on the bin, or by moving a part of the bin. Markings are preferably provided to indicate the correct position for "bag” or “bagless” operation.
  • a vacuum cleaner in accordance with this invention is extremely simple and inexpensive in construction and yet can be used with and without a bag by appropriately selecting the rotational position of the bin in the body of the cleaner.

Landscapes

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

Abstract

L'invention concerne un aspirateur comprenant un réceptacle à poussière amovible rigide (15), pouvant effectuer une rotation entre une première position et une seconde position. En première position, une ouverture (22) de la paroi du réceptacle (15) s'associe à une source d'aspiration (20) du corps de l'aspirateur, de sorte que l'air est évacué à partir d'une zone située entre le réceptacle et une peau d'étanchéité (25), notamment un sac en plastique, fixé à l'intérieur du réceptacle (15), ce qui étire la peau d'étanchéité (25) et la presse fortement contre la paroi du réceptacle (15). Lorsqu'aucune peau d'étanchéité (25) n'est fixée, le réceptacle (15) est positionné en seconde position, de sorte que la source d'aspiration (20) n'est plus raccordée au réceptacle (15), et que l'ouverture (22) est scellée.
PCT/GB2003/003297 2002-07-24 2003-07-23 Aspirateur WO2004008933A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003260711A AU2003260711A1 (en) 2002-07-24 2003-07-23 Vacuum cleaner

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0217105A GB0217105D0 (en) 2002-07-24 2002-07-24 Vacuum cleaner
GB0217105.6 2002-07-24
GB0310440A GB2391165B (en) 2002-07-24 2003-05-07 Vacuum cleaner having a removable dust receptacle
GB0310440.3 2003-05-07

Publications (1)

Publication Number Publication Date
WO2004008933A1 true WO2004008933A1 (fr) 2004-01-29

Family

ID=30772049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/003297 WO2004008933A1 (fr) 2002-07-24 2003-07-23 Aspirateur

Country Status (2)

Country Link
AU (1) AU2003260711A1 (fr)
WO (1) WO2004008933A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7717973B2 (en) 2007-09-05 2010-05-18 Samsung Gwangju Elecetronics Co., Ltd. Cyclone dust-separating apparatus of vacuum cleaner
WO2012089678A1 (fr) 2010-12-30 2012-07-05 Skype Dissimulation de perte de données pour le décodage vidéo
CN103300791A (zh) * 2012-03-08 2013-09-18 碧洁家庭护理有限公司 真空吸尘器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495460A1 (fr) * 1980-12-10 1982-06-11 Nilfisk Sa Aspirateurs Dispositif de recuperation des poussieres pour separateur et aspirateur de poussieres
WO1997012537A1 (fr) * 1995-10-03 1997-04-10 Seb S.A. Aspirateur et sac etanche recuperateur de dechets
US5779745A (en) * 1995-12-28 1998-07-14 Aktiebolaget Electrolux Adaptor for a vacuum cleaner
WO1998035601A1 (fr) * 1997-02-13 1998-08-20 Aktiebolaget Electrolux Separateur cyclone destine a un aspirateur
US6178590B1 (en) * 2000-03-20 2001-01-30 Lindsay Manufacturing, Inc. Vacuum cleaner cannister with removable bag
WO2001035809A1 (fr) * 1999-11-15 2001-05-25 Lg Electronics Inc. Dispositif de fixation d'un sac a poussiere a un aspirateur a cyclone

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495460A1 (fr) * 1980-12-10 1982-06-11 Nilfisk Sa Aspirateurs Dispositif de recuperation des poussieres pour separateur et aspirateur de poussieres
WO1997012537A1 (fr) * 1995-10-03 1997-04-10 Seb S.A. Aspirateur et sac etanche recuperateur de dechets
US5779745A (en) * 1995-12-28 1998-07-14 Aktiebolaget Electrolux Adaptor for a vacuum cleaner
WO1998035601A1 (fr) * 1997-02-13 1998-08-20 Aktiebolaget Electrolux Separateur cyclone destine a un aspirateur
WO2001035809A1 (fr) * 1999-11-15 2001-05-25 Lg Electronics Inc. Dispositif de fixation d'un sac a poussiere a un aspirateur a cyclone
US6178590B1 (en) * 2000-03-20 2001-01-30 Lindsay Manufacturing, Inc. Vacuum cleaner cannister with removable bag

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7717973B2 (en) 2007-09-05 2010-05-18 Samsung Gwangju Elecetronics Co., Ltd. Cyclone dust-separating apparatus of vacuum cleaner
WO2012089678A1 (fr) 2010-12-30 2012-07-05 Skype Dissimulation de perte de données pour le décodage vidéo
CN103300791A (zh) * 2012-03-08 2013-09-18 碧洁家庭护理有限公司 真空吸尘器
EP2636348A3 (fr) * 2012-03-08 2015-08-05 Bissell Homecare, Inc. Aspirateur et système d'aspirateur
CN103300791B (zh) * 2012-03-08 2017-05-24 碧洁家庭护理有限公司 真空吸尘器
US9717380B2 (en) 2012-03-08 2017-08-01 Bissell Homecare, Inc. Vacuum cleaner
US10398268B2 (en) 2012-03-08 2019-09-03 Bissell Homecare, Inc. Vacuum cleaner

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Publication number Publication date
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