WO2009145711A1 - Procédé et système permettant d’entretenir des surfaces de sol dur - Google Patents

Procédé et système permettant d’entretenir des surfaces de sol dur Download PDF

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Publication number
WO2009145711A1
WO2009145711A1 PCT/SE2009/050591 SE2009050591W WO2009145711A1 WO 2009145711 A1 WO2009145711 A1 WO 2009145711A1 SE 2009050591 W SE2009050591 W SE 2009050591W WO 2009145711 A1 WO2009145711 A1 WO 2009145711A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning liquid
purifying
floor surface
pad
treating
Prior art date
Application number
PCT/SE2009/050591
Other languages
English (en)
Inventor
Håkan THYSELL
Original Assignee
Htc Sweden 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 Htc Sweden Ab filed Critical Htc Sweden Ab
Publication of WO2009145711A1 publication Critical patent/WO2009145711A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • B24B7/186—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like with disc-type 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B24B55/03—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material

Definitions

  • the present disclosure relates to a method and a system for maintaining floor surfaces, in particular hard floor surfaces, which may be of stone or stone-like materials, wood, laminate, polymer, linoleum, ceramic or similar materials providing a hard and generally smooth surface.
  • a floor maintenance machine also known as scrubber/dryer or combination machine, comprises a treatment device, which may include some sort of brush or pad that contacts the floor surface to provide a scrubbing action.
  • the floor maintenance machine further comprises a liquid applicator for providing liquid, which may be mixed with detergents and/or crystallization, polishing or other surface-improving agents, onto the floor surface in the area, which is to be treated by the treatment device.
  • the floor maintenance machine comprises a scraper for collecting liquid left on the floor surface, and a suction device for collecting the water from the floor.
  • conventional floor maintenance machines generally comprise two liquid containers: one for clean, unused liquid, and one for dirty, used liquid.
  • the liquid used for cleaning is generally water.
  • WO2006097141 A1 discloses methods and a tool for maintaining hard floor surfaces, which help eliminate the need for chemicals in connection with floor maintenance/cleaning. However, the disclosure of WO2006097141 A1 does not provide any way of reducing water consumption.
  • US 6,857,162B1 discloses a cleaning or treatment device for treating floor surfaces, effectively a cleaning machine, comprising a water recirculation and purification system.
  • the system comprises a clean solution tank and a dirty solution tank, with a filter arrangement provided in the path between the tanks.
  • the machine disclosed in US 6,857,162B1 is still bulky, since it will need to contain a large number of components.
  • a method for maintaining a hard floor surface which comprises applying a cleaning liquid onto the floor surface from a single cleaning liquid container, treating the floor surface, in the presence of the cleaning liquid, with a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers with abrasive particles comprising diamond particles bonded to the pad, on a contact surface between the pad and the floor surface, collecting the cleaning liquid having been used for treating the floor surface, returning the collected cleaning liquid to the single cleaning liquid container, purifying the collected cleaning liquid, and re-applying at least some of the purified cleaning liquid onto the floor surface, wherein said purifying is performed after the collection of the cleaning liquid and before the returning of the cleaning liquid to the single cleaning liquid container.
  • the term “maintaining” is understood as treating the floor surface in a manner, which is non-destructive to such an extent as to render it suitable for use on a daily basis.
  • the term “maintaining” is not to be understood as limited to use on a daily basis.
  • the term “single liquid container” is understood in a schematic sense: it may be one single liquid container, but the single liquid container may in practice be formed of two or more parallel containers, or two or more containers which are connected in series.
  • the invention is based on the understanding that while filtering the cleaning liquid reduces or eliminates the effect of cleaning agents, the use of the diamond fiber pad, in its turn, reduces or eliminates the need for cleaning agents in the first place, thus enabling the use of filtering and recirculation of the cleaning liquid without any major loss of effect.
  • Purification techniques which may be used include, but are not limited to, ultraviolet light, filtration, cyclonic separation, water softening, reverse osmosis, ultrafiltration, deionization, heating, electrodeionization and powdered activated carbon treatment.
  • the purifying may comprise mechanically separating debris and/or particles from the cleaning liquid.
  • the purifying may comprise purifying by a purifying device which may comprise a filter having a removable filtrate receptacle. Also, the purifying may comprise purifying by a purifying device which may comprise a disposable filter unit. Such a disposable filter unit may provide a convenient way of removing filtrate without exposing the operator to it. In the alternative or as a complement, the purifying may comprise adding a purifying agent to the cleaning liquid.
  • Purification agents include, but are not limited to, disinfectant (e.g. chlorine, ozone, Hydrogen peroxide), pH regulators (e.g. lime, soda ash, acid (HCI) and carbon dioxide (C02), flocculation or coagulation agents (e.g. Iron (III) hydroxide, Aluminium hydroxide, Aluminium Hydroxychloride), activated carbon and anthracite coal.
  • disinfectant e.g. chlorine, ozone, Hydrogen peroxide
  • pH regulators e.g. lime, soda ash, acid (HCI) and carbon dioxide (C02
  • flocculation or coagulation agents e.g. Iron (III) hydroxide, Aluminium hydroxide, Aluminium Hydroxychloride
  • activated carbon and anthracite coal e.g. Iron (III) hydroxide, Aluminium hydroxide, Aluminium Hydroxychloride
  • a cleaning and/or surface-improving agent may be added to the cleaning liquid prior to its application to the floor surface.
  • the purification process may be a multi-step process, comprising two or more of the above described purification techniques, optionally in combination with addition of one or more of the above described purification agents.
  • a method for maintaining a hard floor surface which comprises drawing cleaning liquid from a single cleaning liquid container, applying the cleaning liquid onto the floor surface, treating the floor surface, in the presence of the cleaning liquid, with a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers with abrasive particles comprising diamond particles bonded to the pad, on a contact surface between the pad and the floor surface, collecting the cleaning liquid having been used for treating the floor surface, purifying the collected cleaning liquid, and re-applying at least some of the purified cleaning liquid onto the floor surface, wherein said purifying is performed after the drawing of the cleaning liquid from the single cleaning liquid container and before the application of the cleaning liquid onto the floor surface.
  • the treatment may be performed in the absence of an effective amount of detergent or other cleaning agent at the contact surface.
  • the use of diamond particles reduces or eliminates the need for detergents or cleaning agents, since a pad as described above provides efficient mechanical cleaning of many different surface types, including but not limited to: stone, stone like materials (concrete, terrazzo), wood, polymer (vinyl, acrylic, epoxy), wood, lacquer, linoleum and glass.
  • effective amount is understood an amount that, when performing the treatment, provides a measurable or otherwise noticeable cleaning effect as compared with treatment performed without any such detergent or agent at all.
  • a system for maintaining a hard floor surface comprising a floor maintenance machine, having an applicator for applying a cleaning liquid to the hard floor surface, a treatment device for treating the hard floor surface in the presence of the cleaning liquid, and a collecting device for collecting used cleaning liquid, a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers with abrasive particles comprising diamond particles bonded to the pad, on in an area where the pad is to contact hard floor surface during the treatment, a purification device for purifying the collected cleaning liquid, and a recirculation device for recirculating the purified cleaning liquid towards the applicator, the recirculation device comprising a single cleaning liquid container which is connected directly or indirectly to the applicator and to the collecting device, wherein the purification device is arranged either between the collecting device and the cleaning liquid container or between the applicator and the cleaning liquid container.
  • the purification device and the recirculation device may be integrated in the floor maintenance machine, which in turn may be a mobile floor maintenance machine, arranged to move across a floor surface to be cleaned, with an operator controlling it by walking near it, by riding on it, or by wire or wireless remote. It is also conceivable to provide a floor maintenance machine, which moves autonomously, i.e. in the form of a so-called robot cleaner.
  • the purification device may comprise a mechanical purification device, i.e. a device for mechanically separating debris and/or particles from the cleaning liquid.
  • the purification device may comprise a filter unit having a removable filtrate receptacle.
  • the filtrate receptacle may be a receptacle that can be removed for emptying and then reinserted into the system and reused.
  • a filtrate receptacle may comprise a filter that can be cleaned or exchanged and/or a collecting device for a cyclone separator.
  • the purification device may comprise a disposable filter unit. With a disposable filter unit, efficient filtration can be achieved, and the filtrate may be disposed with minimum exposure of it to the operator. Other filtration or purification devices, e.g. as listed herein, may also be included.
  • the system may also comprise a dispensing device for adding a purification agent to the cleaning liquid.
  • FIG. 1 is a schematic cross sectional view of a floor maintenance machine according to a first embodiment.
  • Fig. 2 is a schematic cross sectional view of a floor maintenance machine according to a second embodiment.
  • Fig. 3 is a schematic cross sectional view of a floor maintenance machine according to a third embodiment.
  • Fig. 4 is a schematic cross sectional view of a floor maintenance machine according to a fourth embodiment.
  • Figs 5a-5b are schematic cross sectional views of a pad, which may be used according in the method and system described herein.
  • Fig. 1 schematically illustrates a first embodiment of a mobile floor maintenance machine 1.
  • the machine 1 comprises a first container 16 for clean cleaning liquid, an applicator 1 1 for applying cleaning liquid to a floor surface 2, a treatment device 12 for treating the floor surface 2 in the presence of the cleaning liquid, and a collecting device 13 for collecting the cleaning fluid after it has been used in the treatment of the floor surface 2.
  • the applicator 1 1 , the treatment device 12 and the collecting device 13 may be per se known and conventional arrangements. Such arrangements are known from e.g. US 5,829,095, US 5,907,887, US 6,397,429, 7,337,490, .
  • the applicator may be arranged to spray or sprinkle cleaning liquid onto the floor surface in front of the treatment device 12, or even through the treatment device 12. For example, cleaning liquid may be applied through a central hole in a cleaning pad 20 arranged on the treatment device 12.
  • the treatment device 12 may, in particular be designed for use with a fiber pad 20, such as the one disclosed in WO2006097141 A1. Hence, it may be formed as a disk, arranged to rotate in a plane parallel with the floor surface 2, and having an attachment arrangement (e.g. a hook-and-loop arrangement) for receiving and releasably retaining the fiber pad 20.
  • a fiber pad 20 such as the one disclosed in WO2006097141 A1.
  • an attachment arrangement e.g. a hook-and-loop arrangement
  • the collecting device 13 may be in fluid communication with a second container 14 for unpurified or dirty cleaning liquid. Such communication may be complemented by a pump (not shown).
  • a purification device 15 may be arranged, by which dirty cleaning liquid is purified and passed on to the first container 16 for clean cleaning liquid.
  • the purification may be achieved in many different ways, e.g. by mechanical separation of debris and particles contained in the collected cleaning liquid, and/or by addition of chemical agents.
  • the purification device 15 may comprise a removable filtrate receptacle, in which filtrate separated by e.g. cyclonic separation, sedimentation or filtering is collected.
  • the filtrate receptacle may removed for emptying and then replaced or exchanged.
  • the filtrate receptacle may comprise a disposable or reusable filter medium.
  • a disposable filtrate receptacle or filter medium is removable from the purification device.
  • Fig. 2 schematically illustrates a second embodiment, wherein a single cleaning liquid container 14', 16' is used, but where an input portion 14' is separated from an output portion 16' by a purification device, which may be in the form of a filter or membrane.
  • a method for maintaining a hard floor surface comprising: applying a cleaning liquid onto the floor surface treating the floor surface, in the presence of the cleaning liquid, with a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers with abrasive particles comprising diamond particles bonded to the pad, on a contact surface between the pad and the floor surface, collecting the cleaning liquid having been used for treating the floor surface, purifying the collected cleaning liquid, and re-applying at least some of the purified cleaning liquid onto the floor surface.
  • a system for maintaining a hard floor surface comprising: a floor maintenance machine, having an applicator for applying a cleaning liquid to the hard floor surface, a treatment device for treating the hard floor surface in the presence of the cleaning liquid, and a collecting device for collecting used cleaning liquid, a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers with abrasive particles comprising diamond particles bonded to the pad, on in an area where the pad is to contact hard floor surface during the treatment, a purification device for purifying the collected cleaning liquid, and a recirculation device for recirculating the purified cleaning liquid towards the applicator.
  • Fig. 3 schematically illustrates a third embodiment, wherein a single cleaning liquid container 14 for holding dirty cleaning liquid is used, and wherein the cleaning liquid is purified as it is fed towards the applicator 11 .
  • Fig. 4 schematically illustrates a fourth embodiment, wherein a single cleaning liquid container 16 for holding clean cleaning liquid is used, and wherein the cleaning liquid is purified in connection with its collection, and then transferred to the container 16.
  • Figs 5a-5b schematically illustrate a fiber pad 20 made up from an open, lofty three-dimensional non-woven web of fibers 2.
  • a first surface of the pad 20 has a portion P1 presenting abrasive particles bonded to the web by means of a secondary binder, i.e. a binder having as a main purpose to bond fibers to the web.
  • the illustrated pad 20 is generally circular in shape, but may have any shape deemed suitable for the intended application, such as polygonal, square, elliptic etc.
  • a cross section along the line S1 -S2 in Fig. 5a is shown.
  • the portion P1 presenting the abrasive particles is present at the first surface A and to a depth D, which is less than the thickness T of the pad 20.
  • the second surface B there is a portion P2, which is substantially free from the abrasive particles and the secondary binder.
  • portions it is to be understood as portions of the macrostructure of the pad 20 and not portions of the individual fibers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

La présente invention concerne un procédé permettant d'entretenir une surface de sol dur. Le procédé consiste à : appliquer sur la surface du sol un liquide de nettoyage provenant d’un récipient unique renfermant ce dernier ; traiter la surface du sol, sur laquelle se trouve le liquide de nettoyage, avec un coussinet souple comprenant une toile de fibres non tissée tridimensionnelle ouverte élastique et poreuse dotée de particules abrasives composées de particules de diamant liées au coussinet et se trouvant sur une zone de contact entre le coussinet et la surface du sol ; recueillir le liquide de nettoyage utilisé pour traiter la surface du sol ; purifier le liquide de nettoyage recueilli ; et appliquer une nouvelle fois le liquide de nettoyage purifié sur la surface du sol. La purification est effectuée après avoir recueilli le liquide de nettoyage et avant de replacer le liquide de nettoyage dans son récipient unique. Dans un autre mode de réalisation, la purification est effectuée après avoir retiré le liquide de nettoyage de son récipient unique et avant d’appliquer le liquide de nettoyage sur la surface du sol.
PCT/SE2009/050591 2008-05-27 2009-05-25 Procédé et système permettant d’entretenir des surfaces de sol dur WO2009145711A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08157014.5 2008-05-27
EP08157014A EP2127805A1 (fr) 2008-05-27 2008-05-27 Procédé et système pour l'entretien de surfaces dures de plancher

Publications (1)

Publication Number Publication Date
WO2009145711A1 true WO2009145711A1 (fr) 2009-12-03

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ID=39885021

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2009/050591 WO2009145711A1 (fr) 2008-05-27 2009-05-25 Procédé et système permettant d’entretenir des surfaces de sol dur

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EP (1) EP2127805A1 (fr)
WO (1) WO2009145711A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108816848A (zh) * 2018-07-30 2018-11-16 江苏亚奥精密机械有限公司 一种磨床的清洗装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753777A (en) * 1971-10-13 1973-08-21 Tennant Co Surface cleaning method
US6857162B1 (en) * 1998-10-12 2005-02-22 Nilfisk Advance A/S Cleaning and/or treatment device
WO2006097141A1 (fr) * 2005-03-15 2006-09-21 Htc Sweden Ab Methodes et outil d'entretien de surfaces en dur, et methode pour la fabrication dudit outil

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5829095A (en) 1996-10-17 1998-11-03 Nilfisk-Advance, Inc. Floor surface cleaning machine
US5907887A (en) 1996-11-06 1999-06-01 Mansur Industries Inc. Floor washing apparatus
US6397429B1 (en) 2000-06-30 2002-06-04 Nilfisk-Advance, Inc. Riding floor scrubber
US7337490B2 (en) 2002-10-11 2008-03-04 Nilfisk-Advance, Inc. Floor cleaning apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753777A (en) * 1971-10-13 1973-08-21 Tennant Co Surface cleaning method
US6857162B1 (en) * 1998-10-12 2005-02-22 Nilfisk Advance A/S Cleaning and/or treatment device
WO2006097141A1 (fr) * 2005-03-15 2006-09-21 Htc Sweden Ab Methodes et outil d'entretien de surfaces en dur, et methode pour la fabrication dudit outil

Also Published As

Publication number Publication date
EP2127805A1 (fr) 2009-12-02

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