EP3750460A1 - Bodenreinigungsvorrichtung - Google Patents

Bodenreinigungsvorrichtung Download PDF

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Publication number
EP3750460A1
EP3750460A1 EP20179199.3A EP20179199A EP3750460A1 EP 3750460 A1 EP3750460 A1 EP 3750460A1 EP 20179199 A EP20179199 A EP 20179199A EP 3750460 A1 EP3750460 A1 EP 3750460A1
Authority
EP
European Patent Office
Prior art keywords
actuator
floor cleaning
floor
steam
appliance
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Withdrawn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
EP20179199.3A
Other languages
English (en)
French (fr)
Inventor
Alexander Anthony Denny Bassett
Qiyao WANG
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
Candy Hoover Suzhou Co 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 Candy Hoover Suzhou Co Ltd filed Critical Candy Hoover Suzhou Co Ltd
Publication of EP3750460A1 publication Critical patent/EP3750460A1/de
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/34Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts 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
    • A47L11/4052Movement of the tools or the like perpendicular to the cleaning surface
    • A47L11/4058Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/12Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/34Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with height adjustment of nozzles or dust-loosening tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • A47L9/0494Height adjustment of dust-loosening tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/02Nozzles
    • A47L9/06Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0633Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
    • A47L9/064Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor
    • A47L9/0653Nozzles 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

Definitions

  • EP2689704 discloses one such apparatus which comprises a steaming cleaning function and a vacuum cleaning function. In use, the user is able to carry out vacuum cleaning and steam cleaning either independently or simultaneously as desired.
  • a floor cleaning apparatus of the type disclosed in GB2374523 having a suction mouth on the underside of its cleaning head, which is at least partially bounded by a floor-engaging member, such as an elongate brush and/or wiper, since this is known to improve the cleaning efficiency of the floor cleaning apparatus.
  • a floor-engaging member such as an elongate brush and/or wiper
  • the use of such a floor-engaging member is undesirable when cleaning carpets, since it increases the tractive effort required to move the head backwards and forwards across the floor surface and also potentially damages the carpet.
  • floor cleaning apparatus with floor-engaging heads having elongate brushes and/or wipers which can be selectively deployed according to whether a user is carrying out vacuum cleaning on a hard floor or a carpet.
  • a floor cleaning appliance comprising a floor-engaging head having a body portion, a first actuator and a displaceable portion on the underside thereof which can be selectively displaced from a raised position into a lowered position by movement of the first actuator from a first position to a second position and vice-versa, the appliance further comprising a second actuator having a first and second positions for respectively selecting first and second operating modes of the cleaner, wherein the degree of displacement of the displaceable portion upon movement of the first actuator from the first position to the second position is dependent upon the operating mode selected by said second actuator.
  • the displaceable member may comprise a steam applicator and the first and second positions of the second actuator may respectively select a hard floor cleaning mode or a carpet cleaning mode of the floor cleaning appliance.
  • the present invention thus enables the position of the steam applicator relative to the floor surface being cleaned to be adjusted according to whether the floor cleaning appliance is being used in a hard floor cleaning mode or a carpet cleaning mode.
  • the second actuator may cause a brush, wiper or other floor-engaging member to be lowered from the underside of the body of the head. Simultaneously, the lowered position of the steam applicator is adjusted to be further away from the underside of the body portion of the head than it is when the carpet cleaning mode is selected. Likewise, when the carpet cleaning mode is selected during steam cleaning, the second actuator may cause the brush, wiper or other floor-engaging member to be raised towards the underside of the body of the head. Simultaneously, the lowered position of the steam applicator is adjusted to be nearer to the underside of the body portion of the head than it is when the hard floor cleaning mode is selected. In this manner, the steam applicator is positioned at the optimal distance from the floor surface in both the hard floor cleaning mode and the carpet cleaning mode of the floor cleaning appliance.
  • the steam applicator or other displaceable member may be biased towards the underside of the body portion of the head.
  • the first actuator may comprise a cam which acts against a camming surface on the displaceable member to displace the displaceable member away from the body portion of the head when the first actuator is moved from the first position to the second position and vice-versa, wherein actuation of the second actuator from the first position to the second position displaces the cam from a first portion of the camming surface to a second portion of the camming surface and vice-versa, the second portion having a different profile than said first portion.
  • Each portion of the camming surface may have a stepped profile, wherein the height of the step of said first portion is greater than that of said second portion, so that actuation of the first actuator causes the displacable member to displaced further when the second actuator is in the first position than it is when the second actuator is in the second position.
  • the portions of the camming surface may be separated by an inclined portion which allows the cam to move from one camming surface to the other when the second actuator is moved between the first and second positions.
  • the first actuator may comprise a portion which is rotatable about an axis, the cam being displaceable axially of the rotational axis when the second actuator is actuated.
  • the cam may be provided on a rotatable shaft which biased away from the first actuator and slidingly abuts against an abutment surface on second the actuator, wherein actuation of the second actuator displaces the abutment surface such that the point of abutment of the shaft against the second actuator moves from a first portion of the abutment surface to a second portion of the abutment surface, the portions of the abutment surface being disposed at different distances away from the first actuator such that movement of the second actuator causes axial displacement of the shaft and displaces the cam from the first portion of the camming surface to the second portion of the camming surface.
  • the shaft may comprise a ball which abuts against the abutment surface on the second the actuator and helps to reduce friction therebetween when the second actuator is displaced.
  • a head 10 of a floor cleaning appliance in accordance with the present invention which is able to carry out both vacuum cleaning and steam cleaning, the rear of the head 10 comprising an outlet duct 11 for coupling to a suction inlet of the cleaner body (not shown), the outlet duct 11 being pivotally mounted to a chassis 12 of the head 10.
  • the chassis 12 has a pair of large wheels 14 mounted at the rear thereof.
  • An elongate transversely extending nozzle assembly 13 is mounted at the front of the chassis 12 for engagement with the floor surface.
  • a hollow airflow duct 15 extends rearwardly from the nozzle assembly 13 to the outlet duct 11. The forward end of the duct 15 opens into a downwardly-facing elongate suction mouth that extends transversely of the underside of the head 10 across a soleplate 16 of the nozzle assembly 13.
  • the chassis 12 also has a pair of small wheels 17 mounted rearwardly of the soleplate 16 of the nozzle assembly 13.
  • a pair of elongate brushes 18, 19 are displaceably mounted on the nozzle assembly 13 at respective positions, which are disposed in front and behind the suction mouth.
  • the cleaner body (not shown) comprises a motor and fan unit, which draws air into the head 10 through the downwardly-facing elongate suction mouth.
  • a steam applicator assembly 20 is mounted to the underside of the chassis 12 between the front and rear wheels 17,14.
  • the steam applicator assembly 20 comprises an actuator plate 21 which is disposed above the bottom wall of the chassis 12 and is slidably mounted on two pairs of posts 22 which extend upwardly from the upper surface of the bottom wall of the chassis 12.
  • Helical compression springs (not shown) are disposed on each post 22 between the actuator plate 21 and the upper surface of the bottom wall of the chassis 12 and serve to bias the actuator plate 21 upwardly.
  • a steam pad carrier plate 23 is disposed below the actuator plate 21 and is mounted thereto by two pairs of posts 24 which extend upwardly from the steam pad carrier plate 23 through apertures in the actuator plate 21.
  • the posts 24 comprise enlarged head formations at their upper ends which serve to captively retain the steam applicator assembly 20 to the actuator plate 21.
  • Helical compression springs 25 are disposed on each post 24 between the actuator plate 21 and the carrier plate 23 and act to bias the carrier plate 22 downwardly away from the actuator plate 21.
  • a first actuator of the floor cleaning appliance comprises a pedal 26 which is pivotally mounted to the rear of the chassis 12 at one side of the tubular duct 11 and is arranged to selectively displace the steam applicator assembly 20 from a raised position ( Figures 10C, 10D ) into a lowered position ( Figures 10A, 10B ) by rearward rotational movement of the pedal 26 of the first actuator from a raised position to a lowered position and vice-versa.
  • a second actuator of the floor cleaning appliance comprises a pedal 27 which is pivotally mounted to the rear of the chassis 12 at the opposite side of the tubular duct 11 and is arranged to selectively displace the elongate brushes 18, 19 between a retracted (raised) position ( Figures 10BC, 10D ) in which they extend below the plane of the soleplate 16 of the nozzle assembly 13, and an extended (lowered) position ( Figures 10A, 10C ) by rearward rotational movement of the pedal 27 of the second actuator from a raised position to a lowered position and vice-versa.
  • Hard floor and carpet cleaning modes of the floor cleaning appliance are provided with the elongate brushes 18, 19 lowered and raised respectively.
  • the second actuator comprises an elongate actuator arm 28 which extends forwardly from the pedal 27 along one side of the head and rotates a pair of cams 29 which act against a displaceable plate 30 on which the brushes 18, 19 are mounted. Forwards and rearwards movement of the arm 28 (by raising and lowering the pedal 27) thus respectively causes the brushes 18, 19 to retract and extend.
  • An abutment formation 31 extends from the arm 28 at a point disposed intermediate its opposite ends, the formation extends laterally of the head 10 towards the opposite side thereof.
  • the abutment formation 31 provides a laterally-facing abutment surface having a ramp disposed between an inner and outer step.
  • the first actuator comprises an actuator arm 32 which extends forwardly from the pedal 28 along the opposite side of the head 10 to the arm 28 and rotates a shaft 33 which extends laterally of the head 10 and which comprises a distal end that abuts the abutment formation 31 on the arm 28.
  • the distal end of the shaft 33 comprises a captively-mounted ball which reduces the friction between the shaft 33 and the arm 28 as the arm 28 is moved forwardly and rearwardly.
  • the shaft comprises a pair of radially-projecting cams 35 disposed adjacent respective ends thereof.
  • the proximal end of the shaft 33 is hollow and is slidably mounted on a spigot 36 which extends laterally from the arm 32.
  • a spring 35 mounted inside the proximal end of the shaft 33 biases the shaft 33 against the abutment formation 31 on the arm 28.
  • the cams 35 bear against respective camming regions 38 provided on the upper surface of the actuator plate 21.
  • Each camming region 38 a first portion 38A and a second portion 38B having respective stepped profiles, the height of the step of said first portion 38A being greater than that of the second portion 38B.
  • both pedals 26 and 27 are pivoted downwardly into their lowered positions.
  • the lowered pedal 26 rotates the shaft 33 into a position where the cams 35 extend fully downwardly.
  • the lowered pedal 27 displaces the brushes 18, 19 into their extended (lowered) position in which they extend below the plane of the soleplate 16 of the nozzle assembly 13.
  • the arm 28 is at its most rearward position, so that the distal end of the shaft 33 is pushed axially of itself (to the right in Figure 2 ) away from the arm 28 towards the arm 32 by the abutment surface on the abutment formation 31 that extends from the arm 28.
  • This causes the cams 35 to bear against the upper (forward) steps of the first portions 38A of the camming regions 38, thereby displacing the steam applicator 20 fully downwardly.
  • the first and seconds portions 38A, 38B of the camming region 38 are separated by an inclined portion 38C which allows the cam 35 to move from between the camming surfaces 38A, 38B when the pedal 27 is raised and lowered.
  • present invention thus provides a floor cleaning appliance in which the position of the steam applicator 20 relative to the floor surface being cleaned is automatically adjusted according to whether the floor cleaning appliance is being used in a hard floor cleaning mode or a carpet cleaning mode.
  • the lowered position of the steam applicator 20 is adjusted to be further away from the underside of the chassis 12 of the head 10 than it is when the when vacuum cleaning carpets with steam.
  • the lowered position of the steam applicator 20 is adjusted to be nearer to the underside of the chassis 12 of the head 10 than it is when the hard floor cleaning mode is selected. In this manner, the steam applicator is always positioned at the optimal distance from the floor surface in both the hard floor and carpet cleaning modes of the floor cleaning appliance and the steam cleaning efficiency is optimised.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP20179199.3A 2019-06-10 2020-06-10 Bodenreinigungsvorrichtung Withdrawn EP3750460A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910495058.0A CN112057002A (zh) 2019-06-10 2019-06-10 地板清洁设备

Publications (1)

Publication Number Publication Date
EP3750460A1 true EP3750460A1 (de) 2020-12-16

Family

ID=70848043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20179199.3A Withdrawn EP3750460A1 (de) 2019-06-10 2020-06-10 Bodenreinigungsvorrichtung

Country Status (3)

Country Link
EP (1) EP3750460A1 (de)
CN (1) CN112057002A (de)
GB (1) GB2585742A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11910977B2 (en) 2022-01-10 2024-02-27 Bissell Inc. Surface cleaning apparatus with steam
US11986139B2 (en) 2022-02-02 2024-05-21 Bissell Inc. Extraction cleaner with steam

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1027855A2 (de) * 1999-02-02 2000-08-16 Douss Line S.r.l. Mop zum Reinigen von Flächen und/oder Teppichen, mit einer Saugvorrichtung und einer Vorrichtung zum Erzeugen und Spenden von Dampf
GB2374523A (en) 2001-04-17 2002-10-23 Hoover Ltd Vacuum cleaner suction head
EP2689704A1 (de) 2012-07-27 2014-01-29 Hoover Limited Bodenreinigungsvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042109A (en) * 1990-01-12 1991-08-27 Royal Appliance Mfg. Co. Height adjustment mechanism
US5317784A (en) * 1992-08-10 1994-06-07 Ryobi Motor Products Corp. Vacuum power head with bare floor feature
US5906024A (en) * 1996-02-08 1999-05-25 Bissell Inc. Nozzle lift and adjustment mechanism for an upright vacuum cleaner
US6832409B2 (en) * 2001-09-18 2004-12-21 The Hoover Company Wet/dry floor cleaning unit and method of cleaning
CN203195604U (zh) * 2013-03-26 2013-09-18 科沃斯机器人科技(苏州)有限公司 吸尘器地刷及其吸尘器
ITUD20130115A1 (it) * 2013-09-03 2015-03-04 Longhi Appliances S R L Con Un Ico Socio De Spazzola per apparecchiature di pulizia
DE102016101040A1 (de) * 2016-01-21 2017-07-27 Vorwerk & Co. Interholding Gmbh Saugdüse für ein Saugreinigungsgerät
CN107752903A (zh) * 2016-08-19 2018-03-06 康塔有限公司 真空吸尘器头

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1027855A2 (de) * 1999-02-02 2000-08-16 Douss Line S.r.l. Mop zum Reinigen von Flächen und/oder Teppichen, mit einer Saugvorrichtung und einer Vorrichtung zum Erzeugen und Spenden von Dampf
GB2374523A (en) 2001-04-17 2002-10-23 Hoover Ltd Vacuum cleaner suction head
EP2689704A1 (de) 2012-07-27 2014-01-29 Hoover Limited Bodenreinigungsvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11910977B2 (en) 2022-01-10 2024-02-27 Bissell Inc. Surface cleaning apparatus with steam
US11986139B2 (en) 2022-02-02 2024-05-21 Bissell Inc. Extraction cleaner with steam

Also Published As

Publication number Publication date
CN112057002A (zh) 2020-12-11
GB2585742A (en) 2021-01-20
GB202005477D0 (en) 2020-05-27

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