WO1992010128A1 - Machine pour l'entretien des sols - Google Patents

Machine pour l'entretien des sols Download PDF

Info

Publication number
WO1992010128A1
WO1992010128A1 PCT/GB1991/002185 GB9102185W WO9210128A1 WO 1992010128 A1 WO1992010128 A1 WO 1992010128A1 GB 9102185 W GB9102185 W GB 9102185W WO 9210128 A1 WO9210128 A1 WO 9210128A1
Authority
WO
WIPO (PCT)
Prior art keywords
brush
support deck
maintenance machine
guard
floor maintenance
Prior art date
Application number
PCT/GB1991/002185
Other languages
English (en)
Inventor
Christopher Robert Duncan
Michael Edward Gailes
Original Assignee
Numatic International 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
Application filed by Numatic International Limited filed Critical Numatic International Limited
Publication of WO1992010128A1 publication Critical patent/WO1992010128A1/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
    • 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating 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
    • A47L11/02—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
    • A47L11/162—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes having only a single disc brush
    • 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
    • A47L11/4077—Skirts or splash guards

Definitions

  • This invention relates to floor maintenance apparatus and has particular reference to a floor maintenance machine comprising a circular brush or pad.
  • a prior art floor machine assembly typically comprises a support deck carrying an upstanding control handle; a motor unit, carried on said support deck and having a drive-shaft which extends downwardly from the support deck to carry at its lower end a circular backing member; and a circular brush or pad, which is carried by said backing member.
  • Many known floor machines are provided with a pair of transit wheels disposed coaxially one with the other on the support deck towards the base of the control handle. Such a floor machine can be tilted backwards by the control handle to rest on its transit wheels, thereby to lift the circular brush or pad away from the floor. The floor machine then can be readily moved by an operator to and from the surface to be cleaned with the motor unit switched off and without brushing action.
  • Circular brushes and pads for floor maintenance machines are generally available in a number of different diameters and having a variety of bristle characteristics. Furthermore, floor maintenance machines are available at the time of writing having a variety of power outputs and drive-shaft speeds. Thus, by selecting a machine having a particular output speed and a particular brush, the machine can be matched closely to the particular job in hand, whether it be polishing, scrubbing, buffing, shampooing or scarifying.
  • a brush guard which is formed as a unitary construction with the support deck.
  • the brush guard comprises a generally cylindrical, depending skirt which is arranged to overlay the brush backing member and an upper portion of the brush.
  • the brush guard thus serves to protect furniture, skirting boards and the legs and ankles of the operator from being scratched by the rotating backing member which, in many modern machines, rotates at fairly high speeds.
  • a cleaning solution such as detergent or polish
  • the guard protects the machine operator and furniture from splashing of the solution by the brushing action of the machine.
  • a floor maintenance machine assembly comprising:-
  • a motor carried on said support deck and including a drive shaft
  • a backing member arranged to be rotatably driven by said shaft and adapted to carry a brush or pad of generally circular cross-section;
  • the brush or pad used with the floor maintenance machine of the present invention may be generally cylindrical or frustoconical. In use, the floor machine may be supported above the floor or surface to be cleaned by the brush or pad and, thus, said brush or pad may tend to splay radially outwards towards its lower end to form a frustocone.
  • the brush guard may comprise a depending generally cylindrical wall which terminates in a bottom annular edge such that, with the brush in the fitted position, the splayed brush extends outwardly from the interior of the guard and is visible to an operator as an annular fringe around said bottom edge.
  • the motor may be disposed on an upper surface of the support deck, and the drive shaft may extend downwardly through a hole in the support deck.
  • the brush guard may comprise a generally circular upper crown defining a hole adapted to accommodate the downwardly extending drive shaft, and may further comprise a plurality of bolt holes which are arranged to be aligned with corresponding bolt holes provided in the support deck; the brush guard may be releasably fastened to a lower surface of the support deck by means of a plurality of bolts passing through each of the bolt holes in the support deck and the crown of the guard, each bolt being secured in position by a nut.
  • the bolt holes in either the support deck or the brush guard may be threaded, thereby obviating the requirement for fastening nuts.
  • the brush guard may be releasably fastened to the support deck by means of a plurality of bolt shafts provided on one or other of said guard or support deck and arranged to project through corresponding holes in the support deck or guard to be fastened by wing-nuts or thumb-nuts.
  • the guard may be releasably fastened to said support deck by means of clips or spring-clips. It will be appreciated that the guard may be releasably secured to the support deck by any convenient method known to a man skilled in the art.
  • the crown of the brush guard may comprise engaging means adapted to engage corresponding cooperating means provided on the lower surface of the support deck to facilitate correct alignment of the support deck with the brush guard.
  • the engaging means may be abutments and the cooperating means may be recesses or abutments adapted to accommodate or engage said abutments on the brush guard.
  • the support deck may comprise an upstanding control handle comprising control means communicating with the motor to control the output speed of the drive shaft.
  • the support deck may comprise a pair of coaxial transit wheels disposed at the base of the control handle; the machine may be tilted backwards by the control handle to lift the brush away from the floor or surface, and to transfer the weight of the machine from the brush onto the wheels. An operator may thus move the floor maintenance machine to and from the surface to be cleaned on the transit wheels.
  • the backing member may have a generally annular cross-section defining a central hole.
  • the drive shaft of the motor may comprise a plurality of radially extending spigots adapted to engage radially directed slots provided around the periphery of the central hole of the backing member releasably to secure said backing member in coaxial arrangement with said drive shaft.
  • the brush may be releasably secured to the backing member by any convenient method known to a man skilled in the art.
  • the brush comprises a strip of hook-type fastening material such as that which is commerically available under the trade name "VELCRO", and the backing member includes a strip of loop type fastening material.
  • the pad or brush may be permanently fastened to said backing member.
  • the floor maintenance machine may be adapted to carry a tank containing a cleaning solution.
  • the tank may be releasably secured to brackets provided on the control handle of the machine and have an outlet conduit which terminates juxtaposed the surface to be cleaned; the outlet conduit may terminate inside the brush guard juxtaposed the circular brush.
  • the tank may be used in conjunction with an appropriate brush or pad for washing or shampooing the surface.
  • the tank may be adapted to contain a polish solution for use in conjunction with a polishing brush or pad.
  • an advantage associated with some embodiments of the present invention is that the brush guard may be detached from the support deck and replaced with a different brush guard having a larger or smaller internal diameter as the case may be, thereby permitting a larger or smaller diameter brush to be used. Furthermore, whatever the diameter of brush used, the diameter of the brush guard and the diameter of the brush may be closely matched so that in use the lower periphery of the brush is visible to an operator.
  • Figure 1 is a side view of a floor machine.
  • Figure 2 is a bottom view of a support deck of the floor machine of Figure 1
  • Figure 3 is a longitudinal section along line III-III of Figure 2
  • Figure 4 is a top view of a brush guard for the floor machine of Figure 1
  • Figure 5 is a cross-sectional view along line V-V of Figure 4"
  • Figure 6 is a top view of a brush backing member
  • Figure 7 is a side view of the backing member of Figure 6..
  • a floor maintenance machine assembly indicated generally at 10 comprises a generally planar support deck 11 which carries a motor unit 12 and an upstanding control handle 13, a brush guard 14 and a generally circular brush or pad unit 15.
  • Support deck 11 is generally arch-shaped, and is provided towards a rear edge 20 with a pair of transit wheels 21.
  • Transit wheels 21 are coaxially connected one with the other by an axle which is housed in an axle conduit 22 disposed parallel to rear edge 20.
  • Support deck 11 is provided with a relatively large circular hole 25, remote from rear edge 20, which communicates between the upper and lower surfaces (26, 27) of support deck 11.
  • Support deck 11 is also provided with a depending peripheral skirt 28 which terminates in a bottom edge 29.
  • Lower surface 27 of support deck 11 is provided with a plurality of stiffening ribs 30 which serve to provide support deck 11 with a degree of rigidity, each rib 30 terminating at its lower end level with bottom edge 29 of skirt 28.
  • Motor unit 12 includes em upstanding cylinder 34 which houses a motor having a downwardly extending drive shaft 35. Motor unit 12 is mounted on the upper surface 26 of support deck 11 such that cylinder 34 is disposed coaxially with hole 25, and output shaft 35 extends coaxially and downwardly through hole 25; output shaft 35 is provided at its lower end with a plurality of radial spigots 36.
  • Upstanding control handle 13 is mounted on support deck 11, adjacent rear edge 20, by a bracket 19, and carries forwards its upper end control means 16 and handlebars 17.
  • Control means 16 communicates with motor unit 12 to control the speed of output shaft 35.
  • Control handle 13 further includes a mounting bracket 18 which is adapted to carry a cleaning solution tank for dispensing detergent or polishing solutions.
  • Brush guard 14 has a generally annular crown 40, which defines a circular hole 41, and a depending peripheral, cylindrical skirt 42.
  • the upper surface of crown 40 is provided with two upstanding rectangular fins 43, and a semi-circular wall 44 juxtaposed hole 41.
  • Fins 43 and wall 44 are arranged to engage portions of depending skirt 28 of support deck 11 to facilitate the assembly of the brush guard to the support deck.
  • the brush guard may be releasably fastened by any convenient method known to a man skilled in the art and in the fitted position, the upper surface of crown 40 abuts the bottom edge 29 of skirt 28 of support deck 11.
  • brush guard 14 is provided with six holes 45 which pierce the crown 40 and are arranged to be aligned with corresponding threaded holes 31 disposed on the lower surface of support deck 11. Bolts can then be threaded upwardly through holes 45 in crown 40 of brush guard 14 from below and entered into threaded holes 31 on support deck 11 to releasably fasten the brush guard 14 in the fitted position.
  • Output drive-shaft 35 of motor unit 12 is adapted to carry brush or pad unit 15, which has a generally circular, rigid backing member 50 which carries a circular brush or pad 51 on a lower circular surface thereof.
  • the upper surface of backing member 50 is provided with a central circular, coaxial recess or hole which has a plurality of radially directed sockets 53 adapted to receive spigots 36 on output shaft 35.
  • the brush unit 15 is fitted to the support deck/brush guard assembly by entering the spigots 36 into the sockets 53 on the backing member 50, and rotating the backing member 50 with respect to the spigots in a direction opposite to the direction of rotation of the output shaft during operation of the floor machine 10; the spigots are thus retained in the sockets 53.
  • the brush or pad 51 can be permanently fixed to the backing member 50 or, alternatively, it can be detachable therefrom.
  • the brush or pad is generally frustoconical such that, in the fitted position, the cylindrical skirt 42 of brush guard 14 overlays backing member 50 and an upper portion of brush or pad 51, and the wider, lower end of brush 51 extends downwardly and outwardly from brush guard 14.
  • the rotating brush or pad 51 of the floor machine 10 as described herein is visible to the operator of the floor machine as a rotating annular fringe.
  • the brush guard protects the operator and furniture from the rotating rigid backing member 50 and from splashes of detergent or polish.
  • the brush unit 15 and the brush guard 14 can be readily detached from the machine assembly 10 and replaced with a brush or pad of the required diameter and a matching brush guard 14.
  • the weight of the floor maintenance machine assembly 10 as described herein may be supported by the brush or pad 51 and, with the motor stopped, an operator may tilt the assembly 10 backwards onto transit wheels 21 by means of control handle 13 and, thus, the floor maintenance machine assembly 10 may be easily moved to and from the surface to be cleaned.

Landscapes

  • Brushes (AREA)

Abstract

Machine pour l'entretien des sols (10) comprenant une plaque de support (11), un moteur (12) supporté par ladite plaque de support (11) et comportant un arbre primaire (35), un élément de renforcement (50) placé pour être entraîné à tourner par ledit arbre (35) et conçu pour porter une brosse ou un patin (51) présentant une section transversale globalement circulaire et une protection de brosse (14) conçue pour être fixée amovible sur ladite plaque de support (11) et comprenant une partie (42) prévue pour recouvrir ledit élément de renforcement (50) de sorte que l'élément de brosse (51) peut librement tourner selon le même axe que l'arbre primaire (35) et que l'utilisateur de la machine peut voir, lorsque la machine fonctionne, la périphérie de ladite brosse (51).
PCT/GB1991/002185 1990-12-11 1991-12-10 Machine pour l'entretien des sols WO1992010128A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9026869.9 1990-12-11
GB909026869A GB9026869D0 (en) 1990-12-11 1990-12-11 Floor maintenance apparatus

Publications (1)

Publication Number Publication Date
WO1992010128A1 true WO1992010128A1 (fr) 1992-06-25

Family

ID=10686812

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/002185 WO1992010128A1 (fr) 1990-12-11 1991-12-10 Machine pour l'entretien des sols

Country Status (4)

Country Link
AU (1) AU9035091A (fr)
GB (1) GB9026869D0 (fr)
IE (1) IE914288A1 (fr)
WO (1) WO1992010128A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU692189B2 (en) * 1993-12-02 1998-06-04 Maquet Cardiovascular Llc Implantable tubular prosthesis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB906951A (en) * 1961-01-10 1962-09-26 Jerome D Rosenberg Improvements in or relating to floor polishing machines
US3099028A (en) * 1961-09-01 1963-07-30 Westinghouse Electric Corp Surface treating appliance
US3381326A (en) * 1967-01-30 1968-05-07 American Lincoln Corp Scrub brush
US3428984A (en) * 1966-10-24 1969-02-25 Sydney Wellington Collier Adjustment mechanism for industrial maintenance machines
EP0139241A2 (fr) * 1983-09-30 1985-05-02 McGraw-Edison Company Dispositif rotatif d'entretien de sol

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB906951A (en) * 1961-01-10 1962-09-26 Jerome D Rosenberg Improvements in or relating to floor polishing machines
US3099028A (en) * 1961-09-01 1963-07-30 Westinghouse Electric Corp Surface treating appliance
US3428984A (en) * 1966-10-24 1969-02-25 Sydney Wellington Collier Adjustment mechanism for industrial maintenance machines
US3381326A (en) * 1967-01-30 1968-05-07 American Lincoln Corp Scrub brush
EP0139241A2 (fr) * 1983-09-30 1985-05-02 McGraw-Edison Company Dispositif rotatif d'entretien de sol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU692189B2 (en) * 1993-12-02 1998-06-04 Maquet Cardiovascular Llc Implantable tubular prosthesis

Also Published As

Publication number Publication date
IE914288A1 (en) 1992-06-17
AU9035091A (en) 1992-07-08
GB9026869D0 (en) 1991-01-30

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