EP3284380A1 - Staubsaugerkopf - Google Patents

Staubsaugerkopf Download PDF

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Publication number
EP3284380A1
EP3284380A1 EP17185183.5A EP17185183A EP3284380A1 EP 3284380 A1 EP3284380 A1 EP 3284380A1 EP 17185183 A EP17185183 A EP 17185183A EP 3284380 A1 EP3284380 A1 EP 3284380A1
Authority
EP
European Patent Office
Prior art keywords
floor
vacuum cleaner
head
suction mouth
cleaner head
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.)
Granted
Application number
EP17185183.5A
Other languages
English (en)
French (fr)
Other versions
EP3284380B1 (de
Inventor
Hui Zhou
Bin Yao
Peng Jiang
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.)
Candy Hoover Suzhou Co Ltd
Original Assignee
Conta sro
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 Conta sro filed Critical Conta sro
Publication of EP3284380A1 publication Critical patent/EP3284380A1/de
Application granted granted Critical
Publication of EP3284380B1 publication Critical patent/EP3284380B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
    • A47L9/064—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor
    • A47L9/0653—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor with mechanical actuation, e.g. using a lever
    • 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
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening 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
    • 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

  • This invention relates to a vacuum cleaner head which is particularly suited to cleaning carpets and hard floors.
  • a vacuum cleaner head is pivoted at the end of a tubular wand which is connected to the body of the cleaner by an elongate flexible duct.
  • the body of the cleaner comprises a motor and fan unit that is arranged to draw air through the head into the body where any entrained dirt and dust in the air is separated and collected.
  • the head may be detachable, so that the user can fit other kinds of cleaning tools to the wand.
  • Heads for use with canister cleaners are commonly of a type suitable for cleaning both carpets and hard floors (e.g. wooden or tiles).
  • FR2695023 discloses a typical head for a canister cleaner, the head comprising a fixed sole plate provided with a transversely extending elongate suction mouth, and a movable carrier whereby brush strips and/or rubber wiper blades can be retracted inside the head for carpet cleaning or extended to project beneath the sole plate for hard floor cleaning. In their extended state, the brush strips or wiper blades are generally located to the front and the rear of the sole plate. Selection of the brush setting is generally under operator control by means of a mechanism activated by a pedal on the upper surface of the nozzle body.
  • European Union Directives require that most kinds of vacuum cleaners are provided with an Energy Label, which provides consumers with information on the annual energy consumption (AE) and the dust pick up performance or so-called DPU on hard floors and/or carpets depending on the intended use of the cleaner.
  • the annual energy consumption (AE) and DPU of the cleaner have to be indicated on the Energy Label as grades in the range of A (best) to G (poorest).
  • the standard test procedure whereby the energy efficiency grade of general purpose vacuum cleaners is determined involves evaluation of the DPU performance on both of the above types of floor surfaces.
  • the value on which the AE energy consumption rating is based is a product of the sum of 50% of the observed DPU values for the respective floor types and the motor power needed to achieve the DPU for each floor type.
  • a problem with general purpose vacuum cleaners is that the head may not achieve a good DPU at one or both floor types, with the result that the DPU rating and the overall annual energy consumption (AE) rating of the cleaner may be poor. This will be a particular problem from September 2017 when further European Union Directives limit the power of vacuum cleaners to 900 watts.
  • a problem of heads of the type disclosed in FR2695023 is that the sole plate can adhere to the carpet under the applied suction when the brush strips and/or rubber wiper blades are raised.
  • a problem of heads of the type disclosed in FR2695023 is that the sole plate can also adhere to the hard floor under the applied suction when the brush strips and/or rubber wiper blades are lowered. Both situations give rise to the need for high push forces (tractive effort) in use. Furthermore, since airflow into the head is impeded when the head fully or partially adheres to the floor, the achieved DPU is adversely affected.
  • GB2528145 discloses a vacuum cleaner head comprising a front, a rear, a body having a bottom surface which defines a transversely extending suction mouth, front and rear depending elongate floor-engaging members which extend axially of the suction mouth on respective opposite sides thereof and which are displaceable from a retracted position inside the body to an extended position below the bottom surface of the body, and actuator means arranged for selectively extending or retracting the floor-engaging members and for selectively raising or lowering the front of the body relative to the floor surface being cleaned.
  • US4638526 discloses a vacuum cleaner head comprising a front, a rear, a body having a bottom surface which defines a transversely extending suction mouth, front and rear depending elongate floor-engaging members which extend axially of the suction mouth on respective opposite sides thereof and which are displaceable from a retracted position inside the body to an extended position below the bottom surface of the body, and actuator means arranged for selectively extending or retracting the floor-engaging members.
  • the object of the present invention is to provide a general purpose vacuum cleaner head for use on both carpets and hard floors and which has an improved DPU performance compared with known general purpose vacuum cleaner heads.
  • a vacuum cleaner head of the type disclosed in US4638526 which is characterised in that the actuator means is arranged for selectively raising or lowering the rear of the body relative to the floor surface being cleaned.
  • the rear of the body In use, for hard floor cleaning, the rear of the body is raised and the floor-engaging members are extended to a position below the bottom surface of the body.
  • the forwardly and downwardly inclined attitude of the body makes head easier to push over the hard floor surface being cleaned and, since the suction mouth is raised above the floor surface, any tendency for the head to adhere the floor is alleviated.
  • the floor-engaging members contact the floor surface and promote the flow of air over the underlying floor surface so that a good DPU performance is achieved for hard floors.
  • the rear of the body In use, for normal carpet cleaning, the rear of the body is raised and the floor-engaging members are retracted to a position above the bottom surface of the body.
  • the forwardly and downwardly inclined attitude of the body again makes head easier to push over the carpet being cleaned and, since the suction mouth is raised above the floor surface, any tendency for the head to adhere the carpet is alleviated.
  • Only the front of the bottom surface of the body engages the carpet and suction mouth is slightly raised above the surface of the carpet.
  • the front of the bottom surface of the body acts to bend the carpet pile forwardly so that dirt and dust can be drawn out of the carpet by the suction behind the front surface. In this manner a good DPU performance is achieved for carpets.
  • the bottom surface of the body has substantially flat front and rear surface portions which respectively extend from front and rear edges of the suction mouth respectively.
  • a rib may extend across the rear portion behind the suction mouth.
  • the rib augments dust removal as it penetrates, agitates and flicks engrained dust in the carpet pile towards the surface of the carpet and away from the influence of the suction.
  • the displaced dust on the surface of the carpet is drawn into the suction mouth under the action of airflow and reduced agitation. The repeated backwards and forwards movement of the head brings more deeply embedded dust to the surface of the carpet on successive strokes.
  • a lint picker comprising tufts of fine fibres may extend across the rear portion behind the suction mouth.
  • the tufts of the lint picker are aligned in the same direction, such that the lint picker will collect matter such as hair, fibres and lint on the forward stroke of the head, and release such collected matter into the applied suction on the rearward stroke.
  • the front of the bottom surface of the body may be inclined upwardly and away from the front edges of the suction mouth to provide a surface on which the head can ride in the normal carpet cleaning mode.
  • the upwardly inclined front of the bottom surface of the body also makes it easier to move the head forwards over the carpet in the intensive carpet cleaning mode
  • the rear edge of the suction mouth may be curved forwardly at its outer ends.
  • the longitudinal profile of the rib or lint picker may substantially follow the longitudinal profile of the rear edge of the suction mouth.
  • the complementary shape of the rib or lint picker with the rear edge of the suction mouth improves the removal of matter from the carpet.
  • the lint picker and/or the rib will be raised above the floor surface in the hard floor and normal carpet cleaning modes to the rear of the head being raised.
  • the actuator means may comprise a single actuator which can be displaced to selectively extend or retract the floor-engaging members and to selectively raise or lower the rear of the body relative to the floor surface being cleaned.
  • the actuator means may comprise a first actuator which can be displaced to selectively extend or retract the floor-engaging members and a second actuator which can be displaced to selectively raise or lower the rear of the body relative to the floor surface being cleaned.
  • the first actuator may comprise a pedal on the head.
  • the second actuator may comprise a rotary actuator.
  • the first actuator switches between the hard floor cleaning mode and the normal carpet cleaning mode and thus the head is easy to use since the user normally just switches between one and the other using the first actuator, with the other actuator only being used occasionally for intensive carpet cleaning.
  • the first actuator is also the only actuator that needs to be used during testing of the DPU.
  • the elongate floor-engaging members may comprise elastomeric wiper blades and/or brushes.
  • the front elongate floor-engaging member comprises an elongate brush and the rear elongate floor-engaging member comprises an elastomeric wiper.
  • the lower end of the elongate brush may comprise on or more gaps through which air can pass.
  • the lower ends of the elongate floor-engaging members lie in a plane which extends parallel to the floor surface when the rear of the body is raised.
  • the front and rear depending elongate floor-engaging members are mounted on a carrier which is displaceable relative to the body although it will be appreciated that the front and rear depending elongate floor-engaging members could be fixed relative to the body, with the bottom surface of the body being displaceable.
  • the body of the head may be selectively raised or lowered by respectively lowering or raising a wheel at the rear of the head.
  • a cleaning head in accordance with the present invention for fitting to a canister vacuum cleaner, the head comprising a body 10 and a rearwardly-extending tubular suction outlet 11 at the rear of the body 10 for releasably coupling to the distal end of a tubular wand of the cleaner.
  • a motor and fan unit in a body portion of the cleaner draws air through the head via the wand.
  • the head is supported at its rear by a pair of wheels 12.
  • the body 10 of the head comprises a one-piece shell of moulded plastics material which defines a passageway 14 that leads from the tubular suction outlet 11 to an elongate suction mouth 15 provided on the underside of the body 10.
  • the shell of the body 10 comprises an integral floor-engaging soleplate 16 on its underside.
  • An aesthetic hollow plastics covering (not shown) is fitted on top of the shell.
  • the suction mouth 15 extends transversely across almost the entire width of the of the soleplate 16 of the body 10 and is bounded at its front and rear by front and rear planar bottom surface portions of the soleplate 16. The front of the bottom surface of the soleplate 16 extends upwardly.
  • the front edge of the suction mouth 15 is straight and extends parallel to the front edge of the bottom surface of the soleplate 16.
  • the rear edge of the suction mouth 15 is curved forwardly towards its outer ends on opposite sides of a straight central portion. This shape helps to maintain a uniform air velocity across the full width of the suction mouth 15.
  • a rib or lint picker 121 extends transversely of the body 10 across the rear planar bottom surface portion of the soleplate 16.
  • the longitudinal profile of the rib 121 substantially follows the longitudinal profile of the rear edge of the suction mouth 15 and is separated therefrom by a region of the planar bottom surface portion of the soleplate 16.
  • Respective opposite ends of the rib 121 meet a pair of side ribs 122, which extend forwardly along the side edge of the soleplate 16 to a point in front of the suction mouth 15.
  • a front depending elongate floor-engaging brush 17 is mounted to a displaceable carrier plate 13 positioned above the soleplate 16.
  • the tip of the brush 17 may comprise cut-outs or castellations 17C.
  • the brush 17 is disposed in front of the soleplate 16.
  • a rear depending elongate floor-engaging wiper 19 of elastomeric material is also mounted to the displaceable carrier plate 13.
  • the wiper 19 extends through a slot formed along the rear edge of the soleplate 16.
  • a rotatable actuator pedal 20 is mounted on a shaft 22 which is mounted at opposite ends to brackets 21 which extend upwardly from the soleplate 16.
  • the shaft 22 has camming surfaces 23 at opposite ends which act on formations on the carrier plate 13 to displace the carrier plate 13 upwardly and downwardly as the actuator pedal 20 is rotated between two positions.
  • the actuator pedal 20 is rotated into its clockwise position in which the carrier plate 13 is displaced downwardly against the spring bias to extend the elongate floor-engaging brush 17 and the elongate floor-engaging wiper 19 out of the body 10 to a position where they project below the bottom surface of the soleplate 16.
  • a rotatable actuator dial 24 is mounted to the upper surface of the body 10. Rotation of the dial 24 in the counter-clockwise direction displaces the rear wheels 12 downwardly to a point where their axis of rotation extends in substantially the same plane as the bottom of the soleplate 16. Rotation of the dial 24 in the clockwise direction displaces the rear wheels 12 upwardly to a point where the bottom of the wheels lie in substantially the same plane as the bottom of the soleplate 16. In Figures 2 and 3 , the actuator dial 24 is rotated into its counter-clockwise position, so that the wheels 12 are lowered.
  • the head (as configured in Figures 2 and 3 ) can be used for hard floor cleaning once the cleaner has been energised.
  • the rear of the body 10 is raised by the wheels 12 and the floor-engaging members 17,19 are extended to a position below the bottom surface of the soleplate 16.
  • the forwardly and downwardly inclined attitude of the body 10 makes head easier to push over the hard floor surface F being cleaned and, since the suction mouth 15 is raised above the floor surface F, any tendency for the head to adhere the floor is alleviated.
  • the floor-engaging members 17,19 contact the floor surface and promote the flow of air over the underlying floor surface so that a good DPU performance is achieved for hard floors.
  • the brush of the front floor-engaging member 17 acts to promote cleaning and the cut-outs 17c allow air and dust to pass under the head.
  • the actuator dial 24 is rotated into its counter-clockwise position, so that the wheels 12 are lowered to raise the rear of the body 10.
  • the actuator pedal 20 is rotated into its clockwise position in which the carrier plate 13 is displaced upwardly by the spring bias to retract the elongate floor-engaging brush 17 and the elongate floor-engaging wiper 19 into the body 10 above the bottom surface of the soleplate 16.
  • the forwardly and downwardly inclined attitude of the body 10 again makes head easier to push over the carpet being cleaned and, since the suction mouth 15 is raised above the floor surface, any tendency for the head to adhere the carpet C is alleviated.
  • the actuator dial 24 in use, for intensive carpet cleaning, is rotated into its clockwise position, so that the wheels 12 are raised to lower the rear of the body 10.
  • the actuator pedal 20 is rotated into its clockwise position in which the carrier plate 13 is displaced upwardly by the spring bias to retract the elongate floor-engaging brush 17 and the elongate floor-engaging wiper 19 into the body 10 above the bottom surface of the soleplate 16.
  • the entire bottom surface of the soleplate 16 and the suction mouth 15 are thus in direct contact with the carpet C and both the front and rear surfaces of the soleplate 16 act to successively bend the carpet pile away from the suction mouth 15 on successive forwards and rearwards movements of the head, so that engrained dirt and dust can be drawn out of the carpet C by the suction.
  • the rib 121 augments dust removal as it penetrates, agitates and flicks engrained dust towards the surface of the carpet away from the influence of the suction.
  • the head On the rearward stroke, the head is lifted slightly from the carpet by the angle of the wand and the displaced dust on the surface of the carpet C is drawn into the suction mouth 15 under the action of airflow and reduced agitation. The repeated backwards and forwards movement of the head brings more deeply embedded dust to the surface of the carpet C on successive strokes.
  • the complementary shape of the rib 121 with the rear edge of the suction mouth 15 improves dust removal.
  • the ribs 121 and 122 each contribute to maintaining a vacuum around the suction mouth 15.
  • the present invention is simple and inexpensive in construction, yet provides a vacuum cleaner head for use on hard floors and carpet and which provides easy setting of hard floor and carpet cleaning carpet cleaning modes and unquestionable compliance with the marked energy efficiency grade of the cleaner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP17185183.5A 2016-08-19 2017-08-07 Staubsaugerkopf Not-in-force EP3284380B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610694632.1A CN107752903A (zh) 2016-08-19 2016-08-19 真空吸尘器头

Publications (2)

Publication Number Publication Date
EP3284380A1 true EP3284380A1 (de) 2018-02-21
EP3284380B1 EP3284380B1 (de) 2021-11-03

Family

ID=58544276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17185183.5A Not-in-force EP3284380B1 (de) 2016-08-19 2017-08-07 Staubsaugerkopf

Country Status (3)

Country Link
EP (1) EP3284380B1 (de)
CN (1) CN107752903A (de)
GB (1) GB2553012B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112057002A (zh) * 2019-06-10 2020-12-11 康塔有限公司 地板清洁设备
CN114680716B (zh) * 2020-12-25 2025-11-14 宁波方太厨具有限公司 一种吸尘器
CN114668338B (zh) * 2020-12-25 2025-07-08 宁波方太厨具有限公司 一种清洁机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158145A1 (de) * 1984-03-19 1985-10-16 Matsushita Electric Industrial Co., Ltd. Mundstück für Staubsauger
FR2695023A1 (fr) 1992-08-27 1994-03-04 Olivier Ets Georges Suceur d'aspirateur à semelle protégée.
WO2004056252A1 (en) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. A suction attachment for a vacuum cleaner
DE102013106951A1 (de) * 2013-07-02 2015-01-08 Wessel-Werk Gmbh Staubsaugerbodendüse
GB2528145A (en) 2014-07-11 2016-01-13 Conta Sro Vacuum cleaner head

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0023732D0 (en) * 2000-09-28 2000-11-08 Notetry Ltd A floor tool
SE524125C2 (sv) * 2002-01-22 2004-06-29 Wessel Werk Gmbh Golvmunstycke för dammsugare
GB2496663B (en) * 2011-11-18 2014-07-30 Dyson Technology Ltd A cleaner head
CN205094326U (zh) * 2015-10-26 2016-03-23 江苏美的清洁电器股份有限公司 用于吸尘器的地刷组件和吸尘器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158145A1 (de) * 1984-03-19 1985-10-16 Matsushita Electric Industrial Co., Ltd. Mundstück für Staubsauger
US4638526A (en) 1984-03-19 1987-01-27 Matsushita Electric Industrial Co., Ltd. Nozzle assembly for vacuum cleaner
FR2695023A1 (fr) 1992-08-27 1994-03-04 Olivier Ets Georges Suceur d'aspirateur à semelle protégée.
WO2004056252A1 (en) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. A suction attachment for a vacuum cleaner
DE102013106951A1 (de) * 2013-07-02 2015-01-08 Wessel-Werk Gmbh Staubsaugerbodendüse
GB2528145A (en) 2014-07-11 2016-01-13 Conta Sro Vacuum cleaner head
EP2965678A1 (de) * 2014-07-11 2016-01-13 Conta S.R.O Staubsaugerkopf

Also Published As

Publication number Publication date
GB201703151D0 (en) 2017-04-12
EP3284380B1 (de) 2021-11-03
CN107752903A (zh) 2018-03-06
GB2553012B (en) 2020-11-25
GB2553012A (en) 2018-02-21

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