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
  • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
• • 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
  • A47L11/4055—Movement of the tools or the like perpendicular to the cleaning surface for lifting the tools to a non-working position
• • 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
  • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
  • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
  • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary 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
  • A47L11/4052—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
• • 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
  • A47L11/4061—Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
• • 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 invention relates to a mobile floor cleaning machine comprising a chassis, at least one cleaning head and a holding device, by which the at least one cleaning head is held on the chassis and is liftable relative to the chassis, wherein the holding means comprises a first rod means, which via a first bearing means is rotatably supported on the chassis, a second rod means, which is rotatably supported by a second bearing means on the chassis, a third bearing means, via which the at least one cleaning head is rotatably supported on the first rod means and comprises a fourth bearing means, through which the at least one cleaning head is rotatably held on the second rod means.
• the invention further relates to a method for operating a floor cleaning machine which has a cleaning head which can be raised relative to a chassis.
• Mobile floor cleaning machines of the type mentioned are used to effectively clean large areas to save time.
• the invention has for its object to provide a mobile floor cleaning machine of the type mentioned, which has improved handling options.
• the at least one cleaning head is associated with a stop on which the at least one cleaning head is supported when a certain lifting position of the at least one cleaning head is achieved relative to the chassis and at wherein the at least one cleaning head is rotatable by the support relative to the chassis.
• the lifting option makes it possible, for example, to compensate for unevenness in the floor or it is possible to compensate for wear on the cleaning head (such as, for example, brush wear) by setting a defined lifting position, depending on wear by the operator.
• an inclination of the cleaning head can be achieved by using the holding device and via the stop.
• a ramp ride is facilitated because the distance between the cleaning head at a front end of the cleaning head and a substrate can be increased.
• a simplified loading of the mobile floor cleaning machine is made possible in particular.
• a relative angular orientation on the underside of the at least one cleaning head to the chassis remains the same until the specific lifting position of the at least one cleaning head is reached, independently of the rotational position of the first rod device. For example, if the cleaning machine stands upright on a level surface, then the underside remains parallel to this surface until reaching the determined lifting position, irrespective of the rotational position of the first rod device.
• the second rod device and / or the second bearing device are designed so flexible that a tilting movement of the cleaning head is made possible when supported on the stop. As a result, constraints that would otherwise prevent a tilting movement are lifted.
• the second bearing device comprises a rotary-sliding bearing or is designed as a rotary-sliding bearing. As a result, a shift of the second rod means as a whole relative to the chassis can be achieved in a simple manner
• the second rod device is flexible and, for example, telescopically designed to cancel constraints which otherwise would prevent a tilting movement.
• the stop is assigned a mating surface which is arranged or formed on a housing of the at least one cleaning head.
• the cleaning head can be supported on the stop in order to form a pivot bearing or swivel bearing for the inclination.
• a stop surface of the stop between the first rod means, the second rod means and the at least one cleaning head is arranged, and in particular fixedly arranged with respect to the chassis.
• the stop surface is arranged closest to the third bearing device with respect to the first bearing device, second bearing device, third bearing device and fourth bearing device. As a result, an inclination movement can be realized in a structurally simple manner.
• a lower side of the at least one cleaning head is at an acute angle to a ground, when the floor cleaning machine is set up on a level surface, and wherein a front end of the cleaning head at least, relative to a forward direction of the floor cleaning machine, a greater distance from the ground than a rear end of the at least one cleaning head.
• the third bearing device is disposed at or near a front end with respect to a forward direction of the floor cleaning machine of the first rod device.
• the at least one cleaning head can be mounted rotatably on the first rod device in a simple manner.
• the first bearing device is arranged between the front end and a rear end of the first rod device. This makes it possible, for example, to easily form a lever arm for actuating a rotational movement of the first rod device.
• the first rod device then comprises a lever arm, which is arranged between a rear end and the first bearing device.
• a rotational movement of the first rod device and thus a lifting movement of the cleaning head and, after reaching the determined lifting position, a tilting movement of the cleaning head can be effected at a location remote from the first bearing device.
• the lever arm forms an actuating device for a rotational movement of the first rod device on the first bearing device or is in operative connection with an actuating device.
• the lever arm is connected to a pedal. By pedal pressure can then be cause a rotational movement of the first rod means.
• the fourth bearing means is disposed at or near a front end, relative to a forward direction of travel of the floor cleaning machine, of the second bar means. As a result, the space required for the second rod device can be minimized.
• the second bearing device is arranged at or in the vicinity of a rear end of the second rod device.
• a distance from rotational axes of the first bearing device and the third bearing device is fixed.
• a lifting movement can be realized in a simple manner and a lifting position of the cleaning head determined.
• a distance from rotational axes of the first bearing device and the second bearing device is variable, wherein this distance in particular remains fixed when the at least one cleaning head is not supported on the stop. This makes it easy to achieve that, as long as the specific lifting position is not reached, the cleaning head can lift in parallel, and after reaching the specific lifting position, the at least one cleaning head is tilted relative to the chassis.
• the position of a rotation axis of the first bearing device is fixed relative to the chassis.
• the at least one cleaning head can be positioned over the first rod device.
• a distance between axes of rotation of the second bearing device and the fourth bearing device is fixed and in particular a position of the axis of rotation of the second bearing device is displaceable relative to the chassis.
• a maximum displacement value of the second rod means is in a range between 15 mm and 40 mm.
• the displacement path lies in particular on the second bearing device.
• the particular lifting position is when the at least one cleaning head is at a distance in the range between 15 mm and 35 mm above a ground, when the floor cleaning machine is on a level surface, is lifted.
• connecting lines between the axes of rotation of the first bearing device and the third bearing device, the third bearing device and the fourth bearing device, the fourth bearing device and the second bearing device and the second bearing device and the first bearing device form a parallelogram when the at least one cleaning head not supported on the stop.
• a parallel lifting (and lowering) of the at least one cleaning head can be achieved in a simple manner via the corresponding parallelogram structure.
• the second rod device can be arranged in a space-saving manner in the region of a wheel of the floor cleaning machine. As a result, an effective parallelogram structure for lifting the at least one cleaning head can also be realized.
• the fourth bearing device with respect to a forward direction of travel of the floor cleaning machine, is disposed in an area in front of the wheel in the second bearing means an area behind the wheel and in particular the wheel is positioned between the second bearing means and the fourth bearing means.
• the second rod device can be formed in particular as a type of rocker, which "bridges" the wheel laterally.
• the mobile floor cleaning machine according to the invention is designed in particular as a self-propelled floor cleaning machine, wherein a drive motor device can be provided for the driving movement.
• the mobile floor cleaning machine according to the invention is designed as a trailer machine, in which an operator runs behind the floor cleaning machine and this runs after a certain extent.
• the at least one cleaning head is in particular driven to perform a preferably rotating or oscillating cleaning movement. It is for example a brush head or roughing head.
• the above-mentioned method has the object to be able to operate a floor cleaning machine in an effective manner.
• the cleaning head is supported by lifting in a certain position relative to the chassis on a stop and the support causes an inclination of the cleaning head through which the distance of a front end of the cleaning head , relative to one Forward direction, to a base on which the floor cleaning machine gets up, is increased.
• the method according to the invention has the advantages already explained in connection with the floor cleaning machine according to the invention.
• the method according to the invention can be carried out with the floor cleaning machine according to the invention.
• the lifting of the cleaning head is carried out by rotational movement of a rod device to which the cleaning head is rotatably mounted.
• Figure 1 is a side view of an embodiment of a floor cleaning machine according to the invention.
• Figure 2 is a partial sectional view of the floor cleaning machine according to
• FIG. 1 A first figure.
• FIG. 3 shows an enlarged view of a front area with cleaning head in a partial sectional view of the floor cleaning machine according to FIG. 1, wherein the cleaning head is not lifted off from a substrate;
• FIG. 4 is the same view as Figure 1 in a lifting position (intermediate position) of the cleaning head;
• FIG. 5 shows a detailed view of the cleaning head with lifting mechanism according to FIG. 4;
• Figure 6 is the same view as Figure 1 with inclined cleaning head;
• Figure 7 is an enlarged sectional view of a portion of the floor cleaning machine in the tilt position of the cleaning head of Figure 6;
• Figure 8 is an enlarged view of the cleaning head in the
• Figure 9 is a schematic representation of a mechanism for adjusting lifting positions of the cleaning head in a lifting position without inclination.
• FIG. 10 shows the mechanism according to FIG.
• FIGS. 1 to 8 An embodiment of a floor cleaning machine 10 according to the invention, which is shown in FIGS. 1 to 8, is a sweeper such as a trailer sweeper.
• This comprises a chassis 12.
• a wheel device 14 To the chassis 12, a wheel device 14 is arranged with a right wheel 16, a left wheel 17 (see Figure 2) and one or more support wheels 18.
• the right wheel 16 and the left wheel 17 are via a drive motor means (not shown in the drawing) driven.
• a drive motor means not shown in the drawing
• one or more debris containers are provided (not shown in the drawings).
• a cleaning head 20 On the chassis 12 sits (at least) a cleaning head 20.
• This cleaning head 20 is, for example, a brush head with a brush device 22.
• About the cleaning head 20 can be on a surface to be cleaned 24th act.
• the floor cleaning machine 10 is placed over the wheel assembly 14 on a substrate 26 to which in turn is the surface 24 to be cleaned.
• the cleaning head 20 is driven for a cleaning movement and in particular rotational movement of the brush device 22 and driven in particular by a motor.
• the cleaning head 20 may for example also be designed as a roughing head.
• the floor cleaning machine 10 may also include a suction device for absorbing dirt (not shown in the drawing).
• the floor cleaning machine 10 has a front end 30 and a rear end 32 with respect to a forward direction of travel 28. At the rear end 32, a guide 34 and an operator 36 for a user are arranged.
• the guide device 34 comprises a handle unit 38.
• the cleaning head 20 is arranged in the region of the front end 30 of the floor cleaning machine 10. It is held on the chassis 12 via a retaining device designated as a whole by 40.
• the holding device 40 comprises a first rod device 42 (FIG. 2).
• the first rod device is rotatably supported on the chassis 12 on a first bearing device 44.
• the first bearing device 44 is formed by a pure pivot bearing.
• An axis of rotation 46 (pivot axis) lies in particular parallel to a wheel axle 48 of the right wheel 16 and of the associated left wheel 17. In FIG. 2, the axis of rotation 46 is perpendicular to the plane of the drawing.
• the first rod means 42 is rotatable as a whole on the first bearing means 44 about the rotation axis 46.
• the first rod means 42 has a front end 50 and a rear end 52. It extends from the rear end 32 of the floor cleaning machine 10 to the front end 30.
• the first bearing means 44 with the rotation axis 46 is between the front end 50 and the rear end 52 arranged.
• a pedal 54 is fixedly connected to the first rod device 42 as an actuating device. By pedal operation, an operator can pivot the first rod means about the rotation axis 46. This pivoting takes place by direct application of force by the operator to a lever arm of the first rod device 42, which is formed between the rear end 52 and the first bearing device 44.
• an actuating device to act on the first rod device 42 to produce a rotary movement or pivoting movement, wherein this actuating device comprises, for example, a drive such as a motor drive or fluid drive. Via the operating device 36, a user can transmit corresponding control signals to this drive.
• the first bearing means 44 is disposed above the associated wheel (eg, the right wheel 16) with respect to the direction of gravity (relative to the case where the floor cleaning machine 10 rests on a flat ground 26).
• the axis of rotation 46 is fixed to the chassis 12th
• the holding device 40 further comprises a second rod device 56.
• This second rod device 56 is rotatably supported on the chassis 12 via a second bearing device 58.
• a holding element 60 is arranged, which holds the second bearing means 58.
• the second bearing device 58 in this case comprises a rotary-sliding bearing 62 which rotatably supports the second rod device 56 about an axis of rotation 64 and displaceably transversely and in particular perpendicularly to this axis of rotation 64.
• the axis of rotation 64 is parallel to the axis of rotation 46.
• the axis of rotation 64 is slidable via the rotary sliding bearing 62 relative to the chassis 12.
• the second rod device 56 is also rotatable about the second bearing device 58 about the axis of rotation 64 relative to the chassis 12 (pivotable) and displaceable relative to the chassis 12.
• the cleaning head 20 is rotatably (pivotably) attached to the first rod device 42 in the area of a front end 30 of the second rod device 42 via a third bearing device 66.
• the third bearing device 66 defines an axis of rotation 68 (pivot axis); this is parallel to the axis of rotation 46.
• the third bearing device 66 is held with a first element fixed to the first rod means 42.
• Bearing device 66 has a rotatable to the first element or
• pivotable second element which is fixedly held on a housing 70 of the cleaning head 20.
• the second element is in particular held on an upper region 72 of the housing 70 of the cleaning head 20.
• a free area 74 in which the cleaning head 20 is arranged.
• the free area 74 is bounded above by an "overhang area 76".
• the upper portion 72 of the housing 70 faces the overhang portion 76.
• the third bearing device 66 is designed as a pure pivot bearing.
• the cleaning head 20 is rotatably supported on the second rod device 56 via a fourth bearing device 78 about a rotation axis (pivot axis) 80, specifically in the region of a front end of the second rod element 56. direction 56.
• the rotation axis 80 is parallel to the axis of rotation 46.
• the fourth bearing device 78 is positioned in an area in front of (relative to the straight-ahead direction 30) the corresponding wheel (such as the right wheel 16).
• the fourth bearing device 78 is designed as a pure pivot bearing.
• the second rod means 56 extends in the manner of a rocker from the rear portion 59 behind the right wheel 16 to the front portion in front of the right wheel 16.
• the second rod means is disposed between the right wheel 16 and the left wheel 17 and the chassis 12 (see FIGS. 1 and 2).
• the articulation point of the fourth bearing device 78 is located on the cleaning head 20 in a direction parallel to the forward direction 28 offset from the articulation of the cleaning head 20 to the third bearing device 66.
• the articulation point on the fourth bearing means 78 is closer to the wheel (for example, right wheel 16) as the articulation point on the third bearing device 66.
• the axis of rotation 46 of the first bearing device 44 is fixed relative to the chassis 12.
• the axis of rotation 68 of the third bearing device 66 is fixed with respect to the first rod device 42.
• a distance between the axis of rotation 46 and the axis of rotation 64 is fixed.
• the axis of rotation 80 of the fourth bearing device 78 is fixed with respect to the cleaning head 20.
• the axis of rotation 68 of the third bearing device 66 is fixed with respect to the cleaning head 20.
• the distance between the axes of rotation 68 and 80 is fixed.
• the rotation axis 64 of the second bearing device 58 is fixed relative to the second rod device 56.
• the distance between the rotation axis 64 and the rotation axis 80 of the fourth bearing device 80 is fixed.
• By the holding device 40 can, as shown in Figures 4 and 5, lift the cleaning head.
• connecting lines 82a between the rotation axis 46 of the first bearing device 44 and the rotation axis 68 of the third bearing device 66, 82b between the rotation axis 68 and the rotation axis 80 of the fourth bearing device 78, 82c between the Rotary shaft 80 and the rotation axis 64 of the second bearing means 58, and 82d between the rotation axis 80 and the rotation axis 46 is a parallelogram.
• the second bearing device 58 acts as a pure pivot bearing, that is, the position of the axis of rotation 64 relative to the chassis 12 does not move.
• the second rod means 56 on the second bearing means 58 is in an excellent position 86 which, for example, is a stop position.
• a determination device 88 is provided by which an operator can determine a specific pivot position of the first rod device 42 and thus a specific lifting position of the cleaning head 20.
• the determination can be stepless or it can be provided levels for certain lifting positions.
• FIG. 5 shows a lifting position 90 of the cleaning head 20, in which the underside 84 is aligned parallel to the base 26.
• the bottom 84 is located at a height H above the ground 26th
• the cleaning head 20 is assigned a stop 92 (compare in particular FIGS. 3 and 8), which provides a stop surface 94.
• the stop 92 is in particular fixedly connected to the first rod device 42 and formed, for example, on the first element of the third bearing device 66.
• the stop 92 is positioned between the first rod means 42, the cleaning head 20 and the second rod means 56. In particular, it is positioned between the connecting lines 82a and 82b.
• the stop 92 of the third bearing device 66 is the closest.
• the stop 92 is arranged so that in a normal lifting range up to a maximum lifting height H of the stop 92 is ineffective, that is the Stop surface 94 is not applied to the counter surface 98. As a result, a parallel orientation of the underside 84 of the cleaning head 20 to the substrate 26 can be achieved.
• a certain lifting height H is reached (by pivoting the first rod means 42), then the cleaning head 20 abuts against the stop 92.
• This lifting height H it is in particular in the range between 15 mm and 35 mm and for example at about 20 mm, when the non-lifted position, as shown in Figure 1, is defined as the zero position.
• the cleaning head 20 abuts against the stop 92, then it is supported on the stop surface 94 and it is thereby formed on the stop 92, a pivot bearing.
• the first rod means 42 By Rothverschwenkung the first rod means 42, the cleaning head 20, as shown in Figures 6 to 8, then tilt against the chassis 12 and against the ground 26.
• This inclination is made possible by the formation of the second bearing device 48 as a rotary sliding bearing 62, by which the second rod means 56 is slidably held on the chassis 12.
• the distance between the rotation axis 46 and the first bearing device 44 and the rotation axis 64 of the second bearing device 58 is then no longer constant.
• a displacement path S (see FIG. 7) of the rotation axis 64 between the position 86 and a maximum displacement position is, for example, in the range between 15 mm and 40 mm and, for example, in the range between 20 mm and 25 mm.
• the maximum lift position with a lifting height H it is defined such that a rear end 100 of the cleaning head 20, which the corresponding wheel (such as right wheel 16) is most closely, is so far apart from the substrate 26, that the tilting movement is possible.
• a Swivel bearing (ad hoc pivot bearing") formed with a pivot axis which is parallel to the axis of rotation 46.
• a front end 102 of the cleaning head 70 rises by the inclination of the cleaning head 70 more than the rear end 100. There is then in the region of the front end 102, a greater distance A to the substrate 26 before than in the region of the rear end 100th
• Such a position of the cleaning head 70 is advantageous for a ramp ride, for example for loading the floor cleaning machine 10th
• the floor cleaning machine 10 works as follows (see also FIGS. 9 and 10):
• the cleaning head 20 In a "normal" cleaning operation on a flat surface 26, for example, the cleaning head 20 is in the position, as shown in Figures 1 to 3.
• the cleaning head 20 can, as shown in Figures 4 and 5, lift, for example, to compensate for unevenness on the substrate 26 during cleaning.
• a special lifting position can be compensated for example, wear.
• wear Without wear there is a lifting position with a greater distance H to the ground 26 and when worn, this lifting distance H is reduced.
• the position of the elements of the holding device 40 is shown schematically.
• the rotational position of the first rod means 42 (set via the pedal 54 and detected by the detection means 88) determines the lifting position of the cleaning head 20, and if the stop 92 is not yet working, the bottom 84 is aligned parallel to the ground 26 when this is just.
• the connecting lines 82a, 82b, 82c, 82d form a parallelogram.
• each lifting position is a parallelogram 82a, 82b, 82c, 82d before, wherein the vertices of the parallelogram are defined by the bearing means 44, 58, 66, 78 and by the respective axes of rotation.
• the inventive solution can be set in a structurally simple manner, a tilt position of the cleaning head 20 relative to the chassis 12, for example, for a ramp ride.
• the solution according to the invention can be used in all types of floor cleaning machines, such as, for example, ride-on floor cleaning machines.
• the inventive solution can be achieved with a corresponding design of the holding device 40 and a synchronous or non-synchronous tilting movement of several cleaning heads when at the

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• Nozzles For Electric Vacuum Cleaners (AREA)
• Electric Suction Cleaners (AREA)
• Cleaning Of Streets, Tracks, Or Beaches (AREA)

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• 2011
  • 2011-08-02 WO PCT/EP2011/063305 patent/WO2013017167A1/de active Application Filing
  • 2011-08-02 CN CN201180072645.0A patent/CN103717117A/zh active Pending
  • 2011-08-02 JP JP2014523206A patent/JP5878237B2/ja not_active Expired - Fee Related
  • 2011-08-02 EP EP11740644.7A patent/EP2739196A1/de not_active Withdrawn
• 2014
  • 2014-01-30 US US14/168,444 patent/US9456727B2/en not_active Expired - Fee Related

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