EP2563200B1 - Système d'ajustement de garde au sol pour une cireuse - Google Patents

Système d'ajustement de garde au sol pour une cireuse Download PDF

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Publication number
EP2563200B1
EP2563200B1 EP10721859.6A EP10721859A EP2563200B1 EP 2563200 B1 EP2563200 B1 EP 2563200B1 EP 10721859 A EP10721859 A EP 10721859A EP 2563200 B1 EP2563200 B1 EP 2563200B1
Authority
EP
European Patent Office
Prior art keywords
polisher
motor
operating member
frame
mechanisms
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.)
Not-in-force
Application number
EP10721859.6A
Other languages
German (de)
English (en)
Other versions
EP2563200A1 (fr
Inventor
Luca Lenzi
Roberto Beretta
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.)
Ghibli SpA
Original Assignee
Ghibli SpA
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Filing date
Publication date
Application filed by Ghibli SpA filed Critical Ghibli SpA
Publication of EP2563200A1 publication Critical patent/EP2563200A1/fr
Application granted granted Critical
Publication of EP2563200B1 publication Critical patent/EP2563200B1/fr
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
    • 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
    • A47L11/4072—Arrangement of castors or wheels
    • 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/16—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • A47L11/161—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes with supply of cleaning agents
    • 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
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A47L11/4058—Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool

Definitions

  • the present invention relates to a floor polisher, in particular to a system for adjusting the ground clearance of the operating member of said polisher.
  • the polisher of the present invention allows for carrying out cleaning, at home or in a industrial environment, floors by applying thereon specific products known in the art with the terms: "not waxing spray” and "waxing spray”, respectively.
  • the use of such products permits a dry cleaning of the desired surfaces and, therefore, it does not have the drawback of leaving marks of the polisher passing on the same surfaces.
  • the aforementioned products then, contain substances that, once applied on the surfaces, turn into films protecting the same surfaces, said films containing or not metalized wax depending on the fact that a waxing spray or a not waxing spray, respectively, is contained.. During time and, above all, under the action due to the passing of people and things on the surfaces said protective film wears out and, therefore, has to be restored.
  • the application of waxing spray and not waxing spray products has to be performed by a buffing which is able to generate enough heat to let the film contained in the cleaning products melt and be, suitably, spread over the portion the machine is operating on. Moreover, a so accentuated buffing allows the removal of marks and traces left on film the already present on the floor.
  • Reaching a buffing level such as the one just disclosed means certainly adopting an operating member, that is a member spreading the cleaning product, having a wide surface contacting floor, or in general the surfaces to be polished, and in addition having a noticeable speed relative to the same floor: it is therefore common knowledge adopting for the operating member in said polishers a single pad driven by a motor having high revolving speed, in almost all the cases 1 500 rpm.
  • the aforementioned pad is generally made with microfiber, or however a material which during the cleaning operation tends to wear out, by seeing its thickness definitively decreasing. It is immediately observed that during the continuous decrease of the thickness the pressure the pad is able to exercise on the portion to be cleaned continuously decreases, with the subsequent and unavoidable loss of the efficiency in the cleaning action and film restoring (eventually by metalized wax).
  • a floor polisher comprising the features recited in the preamble of independent claim 1, is disclosed in document US-A-5608939 .
  • Main object of the present invention is therefore to provide a floor polisher provided with a ground clearance adjusting system for the operating member.
  • Secondary object of the present invention is then to provide a floor polisher in which the operating member is balancing in respect of its drive, so as to compensate for cocking between floors and the same operating member.
  • Further object of the present invention is to provide a floor polisher provided with a control system of the right ground clearance of the operating member.
  • the prismatic joint between said frame 20 and said body 30 is constituted by a main body 31 having a circular plan integral with a radial protrusion 32 thereof provided with a rectangular hole 33. Said hole 33 is dimensioned so as to allow its clearance fit to the body pillar 22 of the frame 20, which it is also bolted on.
  • the main body 31 is fixed to a extensible leg 50 connected, in turn, with a caster 51. Therefore the main body 31 is supported by the frame 20, through the pair of wheels 23, and by the extensible leg 50, through the caster 51, at a given ground clearance.
  • said extensible leg 50 comprises a part 52 fixed to the main body 31 and a part 53 slidable in said part 52.
  • the relative position of the part 53 in respect of the part 52 is adjustable by means of a control wheel 54, in the shown embodiment, placed at the top of said part 53.
  • an extensible system 24 on the whole like said leg 50 and acting on the axle 26 of the rear wheels 23. Further each of said extensible systems 24 is controlled by a toothed pulley 25, connected by a toothed belt 37 with a second toothed pulley 55 coaxial with said control wheel 54 and rotatably integral therewith.
  • Suitable snub pulleys 35 and 36 toothed and smooth, respectively, allow for fit the path of each belt 37 to the shape of the main body 31. Therefore a rotation of the control wheel 54, by means of its coupling - for example threaded - with said slidable part 53, corresponds to a given vertical shift of said part 52 and so, due to the disclosed structure, a vertical translation of the whole main body 31. Indeed the adjustment selected by the control wheel 54 is automatically transferred and set also to the pair of extensible systems 24: the translations of the cross member 21, the body 30 is integral with, and the part 52 are equal and synchronous, so that during translation the body 30 is always parallel to itself.
  • the propeller shaft 41 which, as it is possible to quickly verify, is connected with operating member 60 without interposition of any gearbox, in other words it is a direct gear transmission: in such manner the operating member 60, that is a microfiber pad having a diameter of about 500 mm, rotates at the same speed of the motor which, as just been said, imposes a revolving speed of 1 ⁇ 500 rpm, like many polishers currently available on the market.
  • the operating pad 60 is not directly connected to the propeller shaft 41.
  • a hub 42 rigidly connected with the propeller shaft 41 and a balancing pad holder 43 rigidly connected with the operating pad 60.
  • balancing pad holder 43 and hub 42 are connected with each other by a spring 45 coaxial to both and by a set of four flexible couplings 44 symmetrically arranged at a given radial distance from said spring 45.
  • a sensor which measures as input the current taken up by the motor - directly proportional to the braking torque acting against it - and sends the measure to a suitably calibrated electronic board (not shown) which generates as output a corresponding signal, for example a lighting signal, by a set of LEDs (not shown) the lighting of which corresponds to the right pressure to be applied on the operating pad 60.
  • the output generated signal from said board can also be used for controlling a servomotor (not shown) operating said control wheel 54: in such manner the ground clearance adjustment occurs in real time and fully automated and programmable by said board.
  • the polisher 100 allows therefore not only for using microfiber pads with different thickness (and therefore from different manufacturers) but also making the most of each of said pads which in their service life could see their thickness reduced up to 50%. Moreover the kind of connection between the propeller shaft 41 and the operating pad 60 allows for keeping the whole surface of the same pad always in contact with the floor, the cocking between it and the shaft 41 being compensated by the movement of the balancing pad holder 43.
  • polisher according to the present invention belongs to, will quickly notice the opportunity to add several modifications or changes that for example could involve the mechanism for adjusting the disclosed extensible systems, or replacement of the toothed belt with equivalent transmission systems, or use of a control system alternative in respect of the disclosed pressure governor as well as many other changes all falling in the scope of the invention defined by the annexed claims.

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (9)

  1. Cireuse (100) comprenant:
    (i) un châssis mobile sur au moins une paire des roues (23) attachées à un essieu (26),
    (ii) un corps (30) connecté au dit châssis (20),
    (iii) un logement (40) du moteur, solidaire avec le dit corps (30),
    (iv) au moins un élément de travail (60) actionné par le dit moteur, et
    (v) au moins une troisième roue (51) connectée au dit corps (30),
    dont l'accouplement entre la dite au moins troisième roue et le dit corps (30) est réalisé par un mécanisme réglable (52; 53; 54), caractérisée en ce que le réglage du dit mécanisme est appliqué automatiquement aux mécanismes réglables pareils (22; 24; 33) réalisant l'accouplement entre le dit châssis (20) et le dit essieu (26).
  2. Cireuse (100) selon la revendication 1, dont le réglage du dit mécanisme (52; 53; 54) est appliqué aux mécanismes pareils susdits (22; 24; 33) par un système (55; 35; 36; 25) de transmission par courroie dentée (37).
  3. Cireuse (100) selon la revendication 2, dont le dit mécanisme (52; 53; 54) règle la distance vertical entre le dit châssis (20) et le dit essieu (26).
  4. Cireuse (100) selon la revendication 1, dont le dit au moins un élément de travail (60) est un disque, éventuellement en microfibre.
  5. Cireuse (100) selon les revendications précédentes, dont le rapport de transmission entre le moteur et le dit au moins un élément de travail (60) est de 1:1.
  6. Cireuse (100) selon les revendications précédentes, dont le dit au moins un élément de travail (60) est connecté à la transmission (41) du dit moteur par interposition d'un organe d'entraînement (43) connecté directement au dit au moins un élément de travail (60), et d'un moyeu (42) directement connecté à la dite transmission (41), l'organe d'entraînement (43) et le moyeu (42) étant connectés entre eux-mêmes par un ressort (45) à charge réglable et une pluralité d'accouplements flexibles (44).
  7. Cireuse (100) selon la revendication 6, dont le dit ressort (45) est coaxial avec la dite transmission (41), et la dite pluralité d'accouplements flexibles (44) est disposée symétriquement par rapport au dit ressort (45).
  8. Cireuse (100) selon les revendications précédentes, dont un capteur du courant mesure le courant absorbé par le moteur et envoie cette mesure à un régulateur électronique activant des signales lumineux correspondants à une valeur optimale du courant mesuré.
  9. Cireuse (100) selon les revendications précédentes, dont un capteur du courant mesure le courant absorbé par le moteur et envoie cette mesure à un régulateur électronique lequel, sur la base du dit courant mesuré, pilote un moteur contrôlé par un des mécanismes susdits (52; 53; 54; 24).
EP10721859.6A 2010-04-27 2010-04-27 Système d'ajustement de garde au sol pour une cireuse Not-in-force EP2563200B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2010/000183 WO2011135595A1 (fr) 2010-04-27 2010-04-27 Système d'ajustement de garde au sol pour une cireuse

Publications (2)

Publication Number Publication Date
EP2563200A1 EP2563200A1 (fr) 2013-03-06
EP2563200B1 true EP2563200B1 (fr) 2015-08-19

Family

ID=42987484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10721859.6A Not-in-force EP2563200B1 (fr) 2010-04-27 2010-04-27 Système d'ajustement de garde au sol pour une cireuse

Country Status (2)

Country Link
EP (1) EP2563200B1 (fr)
WO (1) WO2011135595A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938196U (de) * 1963-08-05 1966-05-12 Alfred Sutter Fa Teppichreinigungsmaschine.
US4365377A (en) * 1981-01-13 1982-12-28 H. B. Fuller Company Floor polishing machine
US5177828A (en) * 1991-08-20 1993-01-12 Windsor Industries, Inc. Missing pad detector for a floor polishing tool
DE4209282C1 (de) * 1992-03-21 1993-10-07 Henkel Ecolab Gmbh & Co Ohg Fußboden-Reinigungsmaschine
US5608939A (en) * 1995-08-31 1997-03-11 Castex Incorporated Motor and driver mount diaphragm burnisher

Also Published As

Publication number Publication date
WO2011135595A1 (fr) 2011-11-03
EP2563200A1 (fr) 2013-03-06

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