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EP0908134A1 - Aufbau des Reinigungskopfes einer Oberflächenreinigungsmaschine und Maschine mit demselben - Google Patents

Aufbau des Reinigungskopfes einer Oberflächenreinigungsmaschine und Maschine mit demselben Download PDF

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Publication number
EP0908134A1
EP0908134A1 EP98203269A EP98203269A EP0908134A1 EP 0908134 A1 EP0908134 A1 EP 0908134A1 EP 98203269 A EP98203269 A EP 98203269A EP 98203269 A EP98203269 A EP 98203269A EP 0908134 A1 EP0908134 A1 EP 0908134A1
Authority
EP
European Patent Office
Prior art keywords
scrubbing
assembly according
buffer
surface maintenance
machine
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
EP98203269A
Other languages
English (en)
French (fr)
Other versions
EP0908134B1 (de
Inventor
Dieter Windmeisser
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.)
Diversey Inc
Original Assignee
Unilever PLC
Unilever NV
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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP19980203269 priority Critical patent/EP0908134B1/de
Publication of EP0908134A1 publication Critical patent/EP0908134A1/de
Application granted granted Critical
Publication of EP0908134B1 publication Critical patent/EP0908134B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L11/4036—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
    • A47L11/164—Parts or details of the brushing 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
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools
    • 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
    • B24D13/20—Mountings for the wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/006—Vibration damping means

Definitions

  • the present invention relates to an assembly for a head of a surface maintenance machine, a surface maintenance machine comprising such, and to a process of surface maintenance.
  • Surface maintenance machines for example hand-held surface scrubbers which typically have a rotatable head attached to an elongated handle, wherein a motor situated in the head causes a series of brushes or a cleaning pad to rotate, suffer handling problems caused by vibrations due to unbalanced paddrives, pads or brushes. These vibration problems are especially disturbing on high speed machines, whereby the brushes and the pads rotate up to 400 rpm, and make such surface maintenance machines very difficult to operate and manage, and have even led in some cases to operator injury. These machines are very difficult to control since they typically operate at a frequency of 6.6 movements per second which is difficult to follow with the hand. Furthermore the scrubbing pads and brushes often become deformed through use which increases the vibrations travelling through the head.
  • US-A-5,507,061 refers to a rotary brush floor polisher containing shock absorbing members which are indicated to reduce vibrations and noise in operation.
  • the floor polisher disclosed in this document contains an upper disk and a lower disk which are connected to each other by a plurality of bolts arranged around the perimeter of the upper disk which bolts are associated with shock absorbers.
  • this rather complicated constuction does not fully eliminate vibrations when operating the floor polisher.
  • Another type of problems relating to known surface maintenance machines is concerned with the following.
  • a high torque has to be produced in order for an effective working status to be achieved whereby a high current is required which often greatly exceeds the limitation set by fuses within the machine and at the source.
  • This has led to the problem of fuses often blowing on starting up such machines.
  • a large "contra-torque" which can be unmanageable, must be exerted by the operator in order to remain in control over the machine.
  • An object of the present invention is to provide a head assembly for a surface maintenance machine which substantially overcomes one or more of these problems.
  • an assembly for a head of a surface maintenance machine comprising:
  • the inventors have found that by arranging a buffer between the motor coupling and the scrubbing/maintenance means, vibrations in substantially all directions are able to be buffered and dissipated such that the handling ease of such a machine is greatly facilitated. Since an imaginary axis preferably substantially bisects the coupling and scrubbing means and also the buffer, deformation of the buffer is substantially obviated due to its "centrally aligned position", whereby any unbalanced mass of the head assembly is reduced within a handle of the machine itself.
  • the buffer means are preferably substantially elastic in nature and can have a predetermined hardness whereby on starting up of the machine, the buffer first "turns in on itself” to act as a kind of soft start whereby vibrations travelling through the machine are reduced.
  • the buffer means are preferably "sandwiched" between support means, arranged between the coupling means and the buffer means, whereby these support means preferably extend out over the edges of the buffer so that the scrubbing/maintaining means can directly follow the contour of a surface and whereby the buffer therefore acts as a sort of cardanic unit and absorbs movements of the lower plate which may be caused by travelling over contoured surfaces.
  • the buffer comprises a rubber block which is vulcanized to the support means which preferably complies metal plates.
  • Safety means to ensure that the two plates are prevented from clashing together on operation are preferably arranged therebetween.
  • An assembly 2 being a preferred embodiment of the present invention ( see Figures 1 and 2 ), comprises a power head 4 and a scrubber unit 6 arranged thereunder.
  • a hingable handle 8 is attached to the power head 4 wherein a motor is housed.
  • a power cable 10 runs through the handle 8 from the power head 4 for supplying power to the motor.
  • the scrubber unit 6 has an upper plate 12 and a lower plate 14 where between a buffer block 16 is secured by means of an upper securing plate 18 and a lower securing plate 20 respectably, which are bolted to the upper and lower plates 12 and 14 respectably.
  • An upstanding securing rim 22 of the upper plate 12 is co-operably coupled with a central drive axle 24 coupled to the motor, not shown, by means of bolts 26.
  • a rotatable housing part 28 is arranged between the power head 4 and the upstanding rim 22.
  • Arranged below the lower plate 14 are a series of brushes 32, see figure 1, or a cleaning pad 36, as
  • Safety struts 30 are provided on the upper surface of the lower plate 14 near the perimeter thereof, to prevent excessive mutual displacement and clashing together of the upper and lower plates during use, see especially fig 2.
  • a central channel 34 extends through the upper plate 12, the upper securing plate 18, the buffer block 16, the lower securing plate 20 and the lower plate 14 to open into the cleaning brushes or pad wherethrough cleaning agent can be dispensed when required.
  • the operator controls the maintenance machine via the handle 8 and controls associated therewith, not shown, whereby the rotatable axle 24 is driven which in turn drives the rotatable housing 28, the upper plate 12, and hence the buffer block 16 whereby the lower plate 14 is also rotatably driven in order to provide the rotating cleaning/scrubbing action of the brush/pad.
  • Forces occurring during operation of the machine are buffered by the buffer block 16 whereby the upper and lower plates are mutually displaceable, see figure 2, in order to ensure good cleaning/scrubbing effectivity and ease of handling of the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP19980203269 1997-10-06 1998-09-29 Aufbau des Reinigungskopfes einer Oberflächenreinigungsmaschine und Maschine mit demselben Expired - Lifetime EP0908134B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19980203269 EP0908134B1 (de) 1997-10-06 1998-09-29 Aufbau des Reinigungskopfes einer Oberflächenreinigungsmaschine und Maschine mit demselben

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97203064 1997-10-06
EP97203064 1997-10-06
EP19980203269 EP0908134B1 (de) 1997-10-06 1998-09-29 Aufbau des Reinigungskopfes einer Oberflächenreinigungsmaschine und Maschine mit demselben

Publications (2)

Publication Number Publication Date
EP0908134A1 true EP0908134A1 (de) 1999-04-14
EP0908134B1 EP0908134B1 (de) 2002-12-04

Family

ID=26146928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980203269 Expired - Lifetime EP0908134B1 (de) 1997-10-06 1998-09-29 Aufbau des Reinigungskopfes einer Oberflächenreinigungsmaschine und Maschine mit demselben

Country Status (1)

Country Link
EP (1) EP0908134B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807310A1 (fr) * 2000-04-11 2001-10-12 Net Flore Ind Machine de traitement ou d'entretien des sols, a directive amelioree
WO2003053206A1 (en) * 2001-12-20 2003-07-03 Numatic International Limited Improvements relating to floor treatment apparatus
CN103417164B (zh) * 2013-04-28 2017-04-05 吴晓栋 一种包含擦拭功能的自动清洁装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319434A (en) * 1980-05-08 1982-03-16 R/B Manufacturing, Inc. Surface processing machine
EP0049885A2 (de) * 1980-10-13 1982-04-21 Horst Kauffeldt Vorrichtung zum Reinigen von grossflächigen Textilauflagen, insbesondere Teppichen oder Teppichböden
DE3922552A1 (de) * 1989-07-08 1991-01-17 Licentia Gmbh Handgefuehrtes elektrowerkzeug
US5507061A (en) * 1989-04-05 1996-04-16 Nobuyoshi Kumaki Rotary brush floor polisher
US5579554A (en) * 1994-08-25 1996-12-03 Plazanet; Maurice Drive disk for the tool of a machine for the repair and/or maintenance of floors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319434A (en) * 1980-05-08 1982-03-16 R/B Manufacturing, Inc. Surface processing machine
EP0049885A2 (de) * 1980-10-13 1982-04-21 Horst Kauffeldt Vorrichtung zum Reinigen von grossflächigen Textilauflagen, insbesondere Teppichen oder Teppichböden
US5507061A (en) * 1989-04-05 1996-04-16 Nobuyoshi Kumaki Rotary brush floor polisher
DE3922552A1 (de) * 1989-07-08 1991-01-17 Licentia Gmbh Handgefuehrtes elektrowerkzeug
US5579554A (en) * 1994-08-25 1996-12-03 Plazanet; Maurice Drive disk for the tool of a machine for the repair and/or maintenance of floors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807310A1 (fr) * 2000-04-11 2001-10-12 Net Flore Ind Machine de traitement ou d'entretien des sols, a directive amelioree
EP1145679A1 (de) * 2000-04-11 2001-10-17 Net-Flore Industrie Maschine zur Behandlung und Pflege von Fussböden mit verbesserter Führung
WO2003053206A1 (en) * 2001-12-20 2003-07-03 Numatic International Limited Improvements relating to floor treatment apparatus
CN103417164B (zh) * 2013-04-28 2017-04-05 吴晓栋 一种包含擦拭功能的自动清洁装置

Also Published As

Publication number Publication date
EP0908134B1 (de) 2002-12-04

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