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
  • A47L11/4041—Roll 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
  • A47L11/04—Floor surfacing or polishing machines hand-driven
  • A47L11/06—Floor surfacing or polishing machines hand-driven with reciprocating or oscillating 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
  • A47L11/12—Floor surfacing or polishing machines motor-driven with reciprocating or oscillating 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

Definitions

• the present invention relates to a floor cleaning machine, in particular a scrubbing or polishing machine with a chassis and at least one roller brush suspended horizontally thereon and driven in rotation about its longitudinal axis.
• a floor cleaning machine in particular a scrubbing or polishing machine with a chassis and at least one cleaning unit suspended thereon, which has at least two deflecting rollers which can rotate about their horizontally oriented longitudinal axes and one which rotates around them
• Cleaning belt comprises, at least one of the deflecting rollers being driven in rotation.
• Floor cleaning machines of this type are known in the prior art and are in use. They are used for wet or dry cleaning of floors, especially in halls, offices, shops, but also outdoors.
• the roller brush (s) or the deflecting roller (s) around which the cleaning belt rotates are driven by means of a drive motor or by means of a mechanical coupling with the wheels of the chassis, in particular under Use of a belt drive.
• the drive motor for the roller brush (s) or the deflecting roller (s) can be fed via a cable from the power supply or via an on-board energy supply, in particular in the form of rechargeable batteries.
• larger machines are pushed by the operator or have a travel drive; in the second case, the floor cleaning machine can be designed as a self-propelled machine.
• the present invention is therefore based on the object of a floor cleaning machine to create, in which the risk that the floor to be cleaned burns when the vehicle's movement is interrupted is reduced. At the same time, the cleaning effect should be positively influenced.
• this object is achieved in cleaning machines with roller brushes in that the roller brush (s) executes an oscillating movement which overlaps their rotation in the horizontal direction. Since the overlapping of the rotation of the brush with its oscillating movement in the horizontal direction leads to the fact that both the location of the action of the individual bristles on the floor and the direction of their movement above it constantly change, there is a risk that the floor is burned when the floor cleaning machine is stopped, considerably reduced.
• the burning of the floor in conventional machines is caused in particular by the fact that the same bristles are always moved at high frequency in succession in the same direction over the same location on the floor. As a result, the floor is locally overheated in strips, in the circumferential direction of the roller brush.
• Another advantage of the floor cleaning machine according to the invention is that the boundaries of the processed area do not appear as a sharp edge on the floor. Because the limits of the processed strip are "frayed" according to the amplitude of the oscillating movement of the roller brush; the intensity of tillage increases within a narrow edge strip, the width of which corresponds to the amplitude of the oscillating movements. supply corresponds. This suppresses the streak formation on the floor which can be observed in conventional machines.
• roller brushes are particularly preferably suspended on the chassis such that their axes of rotation run transversely to the working direction of the machine, the direction of the oscillating movement likewise running transversely to the working direction of the machine, in the axial direction of the roller brushes.
• the roller brushes can also be arranged at an angle to the working direction of the machine, and the direction of the oscillating movement can form an angle with the axial direction of the roller brushes.
• the drive which sets the roller brushes in oscillating movements can be implemented in various ways.
• at least one cam disk with axial cams is connected to each roller brush, which cam roller runs on a counter cam fixedly arranged on the chassis. This represents a particularly simple and robust technical implementation.
• roller brushes for their oscillating movement consists in providing eccentric drives or crank drives.
• these can either be driven by separate motors, or else they are mechanically coupled to the drive motor for rotating the brushes.
• the eccentrics or cranks can be connected, for example, via connecting rods to one of the roller brushes with these oscillating frames, guided in horizontal guides in the chassis.
• mount the roller brushes in a rotationally fixed but axially displaceable manner on brush shafts which are in turn rotatably but axially fixedly mounted in the chassis. In this way, the oscillating masses can be minimized.
• the above-mentioned object is achieved in floor cleaning machines with a cleaning unit comprising a cleaning belt rotating around deflection rollers, in that the cleaning unit (s) carries out an oscillating movement in the horizontal direction.
• the entire cleaning unit is expediently suspended from the chassis in an oscillating manner.
• a frame in which the deflection rollers are mounted is guided in horizontal, transverse guides in the chassis.
• a separate drive motor is preferably provided on each frame, which drives the oscillating movements of the frame of the cleaning unit.
• the cleaning units or the roller brushes can additionally perform an oscillating pivoting movement about a vertical pivot axis.
• a pivot bearing with a vertical bearing is expediently provided for each brush or cleaning unit Swivel axis provided, which is slidably mounted in a horizontal guide in the chassis. Pivotal movement and horizontal translational movement are expediently coupled to one another by forcing both movements from the same drive.
• FIG. 1 shows the top view of a floor cleaning machine according to the invention configured as a polishing machine with two roller brushes with the covering removed
• FIG. 2 shows the top view of a floor cleaning machine according to the invention with two cleaning units each comprising two deflecting rollers and a rotating pad.
• the base plate 1 is built on a base plate 1. Three wheels are arranged on the underside.
• the front wheel 2 is mounted in bearing blocks 3 fixedly mounted on the base plate;
• the two rear wheels 4 are mounted in steering brackets 5, which are pivotably connected to the base plate about a vertical axis 6.
• On the top of the base plate 1, two bearing blocks 7 are built, in which the common brush shaft 8 of the two roller brushes 9 is rotatably and axially fixed.
• a rectangular cutout 10 is provided therein.
• an electric motor 11 is built on the base plate.
• the energy required for its operation is provided by three accumulators 12, which are also built on the base plate.
• the drive shaft 13 is coupled to the drive of the electric motor 11 and is mounted in the two bearing blocks 14 built on the base plate.
• the drive shaft 13 is coupled to the brush shaft 8 via a belt drive which comprises a toothed belt 15 which rotates around a pulley which is fixedly connected to the drive shaft 13 and a pulley which is firmly connected to the brush shaft 8.
• the roller brushes 9 are connected to the brush shaft 8 in a rotationally fixed but axially displaceable manner, for which purpose the brush shaft, on the one hand, and the cores of the roller brushes, on the other hand, each have corresponding multi-groove profiles.
• a link ring 16 With the inner end faces of the roller brushes 9, a link ring 16 is firmly connected.
• the other end of each connecting rod 18 is pivoted to a crank pin of a crankshaft 19.
• the crankshaft itself is in two bearing blocks built on the base plate 1
• crankshaft 19 is via a bevel gear
• crankshaft 19 driven by the drive shaft 13 so that the crankshaft and the drive shaft have a fixed speed ratio to each other.
• the crank pins of the crankshaft 19 are offset with respect to one another by 180 °, so that the two roller brushes 9 are displaced on the brush shaft 8 in opposite, oscillating movements.
• the floor cleaning machine shown in FIG. 2 differs from that of 1 essentially in that, instead of two roller brushes, two cleaning units 22 are provided, each of which comprises two deflecting rollers 23, 24 and a cleaning belt 25 running around them.
• the rear deflection rollers 23 are rotatably but axially displaceably guided on the rear deflection roller shaft 26, as was described in connection with the roller brushes according to FIG. 1; the rear deflection rollers 23 are thus driven by the drive motor 11.
• the link rings 16 are also firmly connected to them, as was described in connection with FIG. 1.
• the front deflection rollers 24 are rotatably and axially displaceably mounted on the common front deflection roller shaft 27. They have the same dimensions as the rear deflection rollers 23. They are each connected to them via a coupling rod 28 in such a way that they follow the movement of the rear deflection rollers in their axial direction.
• the ends of each coupling rod 28 are placed on the outer ring of roller bearings, the inner ring of which is firmly connected to the outer end face of the respective deflecting roller.
• the cutout 10 in the base plate 1 is enlarged in accordance with the larger dimension of the cleaning units 22.
• a projection carries the front bearing block 20 of the crankshaft 19 and the middle bearing block 29 for the front deflecting roller shaft 27.
• the ends of the front deflecting roller shaft 27 are supported in the two outer bearing blocks 30.
• the cleaning belt 25, from which the upper run has been omitted to illustrate the structure of the cleaning units in the right cleaning unit, is designed as a pad known in the prior art.

Landscapes

• Cleaning In General (AREA)
• Pinball Game Machines (AREA)
• Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6446676

Family Applications (1)

Country Status (5)

Cited By (2)

Families Citing this family (2)

Citations (6)

Family Cites Families (2)

• 1991
  • 1991-12-10 DE DE4140641A patent/DE4140641A1/de active Granted
• 1992
  • 1992-12-08 DE DE59204085T patent/DE59204085D1/de not_active Expired - Fee Related
  • 1992-12-08 WO PCT/EP1992/002834 patent/WO1993011695A1/de active IP Right Grant
  • 1992-12-08 EP EP92924689A patent/EP0616504B1/de not_active Expired - Lifetime
  • 1992-12-08 AT AT92924689T patent/ATE129139T1/de not_active IP Right Cessation
  • 1992-12-08 AU AU30861/92A patent/AU3086192A/en not_active Abandoned

Patent Citations (6)

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