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EP4201285B1 - Machine de nettoyage de sol dotée d'une articulation pivotante et procédé de fonctionnement d'une machine de nettoyage de sol - Google Patents

Machine de nettoyage de sol dotée d'une articulation pivotante et procédé de fonctionnement d'une machine de nettoyage de sol

Info

Publication number
EP4201285B1
EP4201285B1 EP22213551.9A EP22213551A EP4201285B1 EP 4201285 B1 EP4201285 B1 EP 4201285B1 EP 22213551 A EP22213551 A EP 22213551A EP 4201285 B1 EP4201285 B1 EP 4201285B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaning head
floor
roller unit
holding bar
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.)
Active
Application number
EP22213551.9A
Other languages
German (de)
English (en)
Other versions
EP4201285A1 (fr
Inventor
Tobias ENTERLEIN
Andreas MÜLLER
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP4201285A1 publication Critical patent/EP4201285A1/fr
Application granted granted Critical
Publication of EP4201285B1 publication Critical patent/EP4201285B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A47L11/282—Floor-scrubbing machines, motor-driven 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
    • 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
    • A47L11/18—Floor surfacing or polishing machines motor-driven with rotating tools the tools being roll brushes
    • 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
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Definitions

  • the invention relates to a floor cleaning machine comprising a cleaning head, at least one cleaning roller unit which is rotatably arranged on the cleaning head about an axis of rotation, and a support rod device which is pivotably held on the cleaning head via a pivot joint, wherein a pivot axis of the pivot joint coincides with the axis of rotation of the at least one cleaning roller unit.
  • the invention relates to a method for operating a floor cleaning machine in which, during a cleaning operation, a holding rod device is pivoted to a cleaning head.
  • the disclosure specifies a floor cleaning machine with a floor head, wherein a tank is arranged on the floor head and a movable support leg is provided. In a parked position of the floor cleaning machine, the floor head is supported on a base by the support leg in such a way that a cleaning roller is spaced apart from the base.
  • the tank has a continuous recess through which at least one support leg of the support leg is inserted, at least in the parked position.
  • the US 3,127,628 reveals a cleaning device.
  • the DE 21 34 665 reveals a carpet sweeper.
  • the US 2010/01270901 A1 discloses a floor cleaning machine with a fluid distribution system for storing fluid and supplying fluid to a floor to be cleaned.
  • the DE 20 2015 101 302 U1 reveals a cleaning device in the form of a vacuum cleaner.
  • a surface cleaning machine comprising a cleaning roller and a drive unit for driving the cleaning roller.
  • a dirt tray is provided into which the cleaning roller sweeps dirt during rotation. The dirt tray can be opened.
  • a floor scrubber which is manually operated and includes a drive roller coupled to a scrubbing roller.
  • a floor cleaning device comprising a housing, a hose arrangement and a cleaning head is known.
  • a cleaning machine station for a cleaning machine is known, wherein the cleaning machine station has a receiving chamber for a cleaning head of the cleaning machine.
  • a floor cleaning machine is known with a handle which is pivotably arranged on a base.
  • the CN 107007215 A reveals a floor cleaning robot.
  • the DE 20 2018 104 772 U1 discloses a wastewater collection mechanism, a wastewater detection mechanism, and a cleaning device.
  • Cleaning machines are also from the US 4 875 245 A , the EP 3 695 767 , the AU 2017101723 A4 , the CN 206687671 U , the DE 20 2016 105 300 U1 , the US 9,622,637 B1 , the CN 205359367 U , the US 2017/0119225 A1 , the CN 205181250 U , the CN 205181251 U , the CN 205181256 U , the DE 20 2016 105 299 U , the WO 2017/059602 A1 , the WO 2017/059600 A1 , the WO 2017/059601 A1 , the WO 2017/059603 A1 or the DE 20 2016 105 301 U1 known.
  • the swivel joint is designed as an orbital joint with an orbital path guidance of the support rod device on the cleaning head.
  • the solution according to the invention enables the realization of a floor cleaning machine in which the support rod assembly is supported against the at least one cleaning roller unit by its own weight. This results in a high, and in particular maximum, contact pressure for the cleaning head against the floor to be cleaned, due to the weight of the support rod assembly itself.
  • the correspondingly high contact pressure results in improved cleaning outcomes. It improves the removal of dirt from the floor being cleaned.
  • the appropriate design of the swivel joint makes it easy to ensure that, in any position of the swivel joint, the cleaning head, to which a dirt fluid tank is detachably attached, is in the same position relative to the floor to be cleaned. This also improves the cleaning result.
  • the swivel joint is designed as an orbital joint with orbital guidance of the support rod assembly on the cleaning head. This allows for simple coaxiality between the swivel axis of the joint and the axis of rotation. In particular, this ensures that when the support rod assembly is swiveled towards the cleaning head, and the cleaning head with its at least one cleaning roller unit is properly positioned on the floor to be cleaned, the cleaning roller unit rotates on the floor due to the swiveling motion.
  • the pivot joint has a guide rail that is fixedly mounted to the cleaning head and has a circular track section with its center located on the pivot axis.
  • the pivot joint also has a counter-movement that is fixedly mounted to the support rod assembly and is supported by the guide rail. This allows for the simple formation of an orbital joint, where the pivot axis coincides with the axis of rotation of the at least one cleaning roller unit. Furthermore, this provides a large support area for the counter-movement on the guide rail. This results in a mechanically stable pivot joint with a correspondingly long service life.
  • This arrangement allows the circular track section to essentially encircle the at least one cleaning roller unit from two sides. This makes it easy to implement a pivot joint, and in particular an orbital joint, whose pivot axis coincides with the axis of rotation of the at least one cleaning roller unit.
  • the counter-device is supported on the track guidance system via at least three support points. This results in a mechanically stable pivot joint construction.
  • the swivel joint is positioned centrally between a first lateral side and a spaced-apart second lateral side of the cleaning head. This results in a symmetrical design and avoids tilting moments and the like.
  • the at least one cleaning roller unit also moves. It then rolls on the floor to be cleaned when the cleaning head is properly supported on the floor by the at least one cleaning roller unit. This movement is superimposed on the rotational movement of the at least one cleaning roller unit around the axis of rotation.
  • the cleaning head has a foot pedal in the area of one rear end of the cleaning head, whereby The rear end is positioned away from the front end, and at least one cleaning roller unit is located in the area of the front end.
  • the operator can access the cleaning head, and in particular the dirt fluid tank assembly, via the footplate. This results in improved ease of detaching the dirt fluid tank assembly from the cleaning head. For example, the operator does not need to physically handle the dirt fluid tank assembly to remove it from the cleaning head or to connect the cleaning head to the dirt fluid tank assembly.
  • the footplate is aligned with the pivot joint with respect to a longitudinal axis of the cleaning head and is, in particular, positioned centrally between a first lateral side and a second lateral side of the cleaning head. This prevents, for example, tilting moments.
  • the extension beyond the rear end allows an operator to easily operate the footplate from their side using one foot. They can then simultaneously stand on the footplate and, for example, operate the support bar mechanism.
  • the wastewater tank unit can be easily accessed by acting upon it. can be released. For example, by applying force to the footplate when the cleaning head with the dirt fluid tank assembly is standing on a floor, the dirt fluid tank assembly can be fixed to the floor, and by lifting the cleaning head, the dirt fluid tank assembly can be released from the cleaning head.
  • Raised lateral edges on the footplate prevent the operator's foot from slipping. They also eliminate the need for sharp edges or similar hazards.
  • a clearance is provided on the cleaning head in which the support rod assembly can move when pivoting around the pivot axis, and especially if a footplate is arranged on or extending from this clearance.
  • a drive motor for the cleaning roller unit is provided, which is rotationally fixed to the support rod assembly with respect to its pivoting axis. This results in a structurally simple design. When the support rod assembly pivots, the drive motor pivots with it. This allows for a drive train with the drive motor and the cleaning roller unit (mounted on a roller holder) that does not require a sliding coupling or similar component.
  • a gear unit for transmitting torque from a drive motor to the at least one cleaning roller unit, in which the gear unit is rotationally fixed to the support rod assembly with respect to its pivoting about the pivot axis. It is possible to This allows the entire drive train, consisting of the drive motor and gearbox, to pivot relative to the cleaning head by pivoting the retaining rod device on the cleaning head, and no additional coupling is necessary.
  • roller mount on which at least one cleaning roller unit is attached, with the roller mount being rotationally fixed to the support rod assembly with respect to its pivoting motion.
  • the entire drive train consisting of the drive unit, gearbox, and drive motor, is rotationally fixed to the support rod assembly and pivotable with it. This results in the direct application of the weight of the support rod assembly, including the drive motor and gearbox, to the cleaning roller unit, thus providing a high and, in particular, maximum contact force of the cleaning roller unit against the floor to be cleaned.
  • the at least one cleaning roller unit is mounted on a roller holder on a shaft comprising a first shaft section, a middle section, and a second shaft section.
  • the middle section is located between the first and second shaft sections, and a first roller section of the at least one cleaning roller unit is arranged on the first shaft section, while a second roller section of the at least one cleaning roller unit is arranged on the second shaft section.
  • a central drive is provided, which acts on the middle section.
  • the middle section is aligned with the pivot joint along a longitudinal axis of the cleaning head. This central drive allows the first and second roller sections to be moved to the lateral edges of the cleaning head, enabling cleaning close to the edges.
  • the alignment of the pivot joint with the middle section prevents tilting moments and similar issues.
  • the holding rod assembly comprises a first part and a second part, the first part being articulated to the cleaning head and the second part rotatable about an axis of rotation relative to the first part, wherein the axis of rotation is oriented transversely and preferably perpendicular to the pivot axis of the swivel joint.
  • the additional rotatability makes it easier, for example, for an operator to perform cleaning operations in corners or similar areas.
  • the operator can position the cleaning head relative to themselves in various ways due to the rotatability about the axis of rotation.
  • the axis of rotation is, for example, parallel to a longitudinal axis of the first part or parallel to a longitudinal axis of the second part.
  • the lockable park position is a resting position for the floor cleaning machine, especially when not in use. Outside of this resting position, rotation is possible to achieve a wider range of cleaning options.
  • the movable slider allows for a simple implementation of the locking mechanism.
  • the spring support ensures that the locking position is automatically reached for a parked position.
  • the spring support is designed so that, outside the parked position, the slider is held in a position where there is no positive locking with the other part.
  • the slider is supported against the cleaning head by a corresponding force, thus moving it against the spring's action to achieve positive locking.
  • the slide has a nose, whereby the cleaning head, in particular in the park position, can then be used via the nose to push the slide into the positive locking position with the second part of the retaining rod device or to hold it there.
  • the slide is designed in multiple parts so that, in the parked position, when movement of the slide as a whole is not possible, the parts of the slide can move relative to each other to provide overload protection and reduce the risk of damage.
  • a spring-loaded support of the second part against the first part ensures that, outside of an overload situation, the slide as a whole, including both the first and second parts, remains movable to engage and disengage the locking position.
  • the multi-part design allows for some movement of the slide itself under high force.
  • the support rod assembly has a first section with a first longitudinal axis and a second section with a second longitudinal axis, wherein the first and second longitudinal axes are oriented at an obtuse angle to each other, with the obtuse angle being in the range between 120° and 170°.
  • a lockable parking position ensures a stable alignment of the support rod with the cleaning head, and overall a stable position for the floor cleaning machine when parked or, for example, during cleaning of at least one cleaning roller unit.
  • the locking device comprises at least one spring-loaded pin and an associated insertion opening for the pin, wherein (i) the at least one pin is arranged non-rotatably on the retaining rod assembly and the associated insertion opening is arranged non-rotatably on the cleaning head, or (ii) the at least one pin is arranged non-rotatably on the cleaning head and the associated insertion opening is arranged non-rotatably on the retaining rod assembly.
  • a locking device can be implemented in a structurally simple manner by means of a pin insertion opening.
  • the locking mechanism can be easily engaged and disengaged by an operator. In particular, the engagement of the locking mechanism can be achieved automatically by reaching a specific pivot position (especially the upper limit). Furthermore, the locking position (locked position) can be easily disengaged by applying force to the retaining rod assembly.
  • the pin is arranged to be slidable and is spring-loaded. By guiding the first inclined plane, the pin can be positioned against the force of the spring, allowing it to be inserted into the insertion opening. The spring action pushes the pin into the insertion opening as soon as it is reached.
  • This locking process can be performed solely by a pivoting movement of the retaining rod assembly, thus automating the process.
  • a corresponding locking position, with the pin inserted into the insertion opening can be directly achieved by pivoting, particularly to an upper limit of the pivot angle range.
  • the first mounting surface which is adapted to the first inclined plane, results in simple automated access to the corresponding locking position.
  • the second inclined plane allows for the adjustment of the force required to guide the pin back out of the insertion opening. Specifically, this force can be achieved by applying a torque to the retaining rod mechanism. This enables automated release of the locking position. An operator then only needs to pivot the retaining rod mechanism towards the cleaning head, without any further intervention to release the lock.
  • the first and second inclined planes also allow for easy adjustment of the force required to engage the locking position (pin immersed in the insertion opening) or to release the locking position (pin emerging from the insertion opening).
  • the design is such that the force required to release the locking position is greater than the force required to engage it.
  • the placement of the footplate on the dirt fluid tank assembly allows for easy detachment of the dirt fluid tank assembly from the cleaning head. Furthermore, it reduces the risk of the floor cleaning machine tipping over when parked.
  • the at least one scraper element makes it easy to remove dirt fluid and, in particular, to couple it into the dirt fluid tank system without suction.
  • the cleaning head has at least one support element by which the cleaning head is supported on a floor to be cleaned, spaced apart from the at least one cleaning roller unit, wherein, in particular, the at least one support element is firmly connected to the cleaning head in such a way that when a dirt fluid tank unit is removed from the cleaning head, the at least one support element remains attached to the cleaning head.
  • This allows the weight of the cleaning head to be distributed over the at least one cleaning roller unit and
  • the at least one support element is mounted independently of the dirt fluid tank assembly on the floor to be cleaned. This makes it possible to keep the dirt fluid tank assembly parallel to the floor and in the same position relative to the at least one cleaning roller unit at all times.
  • the dirt fluid tank assembly can be easily suspended relative to the cleaning head. This, in turn, allows for easy removal and attachment to the cleaning head. Additionally, a movable or floating mounting of the dirt fluid tank assembly on the cleaning head can be easily implemented.
  • At least one support element is aligned with the swivel bearing along a longitudinal axis of the cleaning head. This minimizes tilting moments and the like.
  • the sweeping element this can be achieved simply if it is arranged on the dirt fluid tank assembly and the dirt fluid tank assembly is movably and, in particular, floatingly mounted on the cleaning head.
  • the cleaning head has a base for the floor to be cleaned, which is in particular a flat surface, and a horizontal plane parallel to the base is assigned to the cleaning head, and if, during proper operation of the floor cleaning machine, the horizontal plane of the cleaning head is always in the same position relative to the base, regardless of a pivot position of the support rod device relative to the cleaning head.
  • a method of the type mentioned at the outset in which, during a cleaning operation, the holding rod device is pivoted towards the cleaning head and in which a weight force of the holding rod device acts directly on the at least one cleaning roller unit, regardless of a pivoting position of the holding rod device.
  • the method according to the invention is carried out with the floor cleaning machine according to the invention.
  • the effect of the weight of the retaining rod device results in a high contact force and, in particular, maximum The contact force of at least one cleaning roller unit against the floor to be cleaned. This in turn results in an optimized cleaning outcome.
  • the at least one cleaning roller unit rolls along a floor to be cleaned, on which the at least one cleaning roller unit is placed.
  • the support rod assembly can be easily braced against the weight of at least one cleaning roller unit.
  • One embodiment of a surface cleaning machine according to the invention is a floor cleaning machine 10.
  • the basic structure of the floor cleaning machine 10 and its basic function are described with reference to the Figures 1 to 3 explained.
  • the floor cleaning machine 10 is particularly suitable for cleaning hard floors.
  • the floor cleaning machine 10 comprises a cleaning head 12.
  • the cleaning head 12 is a floor head.
  • the cleaning head 12 is placed on a base 14 on the floor 16 to be cleaned for proper cleaning operation.
  • the base 14 is, in particular, a flat surface.
  • At least one cleaning roller unit 18 is arranged on the cleaning head 12. In the illustrated embodiment, exactly one cleaning roller unit 18 is provided.
  • the cleaning roller unit 18 can comprise a one-piece cleaning roller or a multi-piece cleaning roller, as explained in more detail below.
  • the cleaning head 12 has a front end 20 and a rear end 22 facing away from the front end.
  • a longitudinal axis 24 of the cleaning head 12 extends between the front end 20 and the rear end 22.
  • the cleaning head 12 has a first lateral side 26 and an opposite second lateral side 28.
  • a distance direction between the first lateral side 26 and the second lateral side 28 lies transversely and, in particular, perpendicular to the longitudinal axis 24.
  • the cleaning roller unit 18 is located in the area of the front end 20 of the cleaning head 12. During proper operation of the floor cleaning machine 10, an operator stands behind the rear end 22 of the cleaning head 12 on the floor 16 to be cleaned.
  • the installation surface 14 is above the cleaning roller unit 18 and at least one installation element (in the Figures 1 to 3 (not shown) defined.
  • the cleaning head 12, and thus also the floor cleaning machine 10, is supported on the floor 16 to be cleaned via the cleaning roller unit 18 and the at least one support element.
  • the cleaning head 12 has a base 30.
  • This base 30 is a basic body of the cleaning head 12.
  • a removable dirt fluid tank assembly 32 is attached to the cleaning head 12.
  • the dirt fluid tank assembly 32 holds dirt fluid.
  • Dirt fluid in this context, refers to a flowable fluid that can be wet or dry.
  • the dirt fluid can, for example, consist of cleaning fluid with dirt particles or only dust particles.
  • the dirt fluid tank assembly 32 can comprise several separate individual parts, which can be individually fixed to the base 30 and removed from it.
  • the dirty fluid tank device 32 comprises a unit which has one or more separate chambers for dirty fluid.
  • a footplate 34 which projects outwards, is attached to the dirt fluid tank assembly 32. This serves to facilitate the removal of the dirt fluid tank assembly 32 from the cleaning head 12, as will be explained in more detail below.
  • a support rod 36 is pivotally attached to the cleaning head 12 via a swivel joint.
  • the support rod 36 is designed so that a standing operator can hold the floor cleaning machine 10 and guide it over the floor 16 to be cleaned.
  • a handle 38 is arranged proximally on the support rod assembly 36.
  • the handle 38 is designed as a closed loop handle.
  • Other configurations, such as an open loop handle, are also possible.
  • operating elements such as an on/off switch and other operating elements, for example for control, are arranged on the handle 38 or on the support rod device 36 in the vicinity of the handle 38.
  • the retaining rod device 36 is articulated via the swivel joint at the base 30.
  • a swivel axis 40 ( Figure 2 ) of the pivot joint of the linkage of the support rod device 36 to the cleaning head 12 is parallel to the mounting surface 14.
  • the pivot axis 40 lies transversely and, in particular, perpendicular to the longitudinal axis 24.
  • the retaining rod assembly 36 has a (second) longitudinal axis 42, along which the retaining rod assembly 36 extends to the handle 38.
  • the pivot axis 40 lies transversely and, in particular, perpendicular to this second longitudinal axis 42 of the retaining rod assembly 36.
  • the retaining rod device 36 has a further pivotability with respect to the cleaning head 12, wherein the corresponding axis of rotation 41 is oriented transversely to the pivot axis 40.
  • This rotation is in Figure 1 indicated by the arrow with reference numeral 44.
  • the corresponding axis of rotation 41 of this rotatability 44 lies, for example, parallel or coaxial to a first longitudinal axis 80 of the retaining rod assembly 36 (see below).
  • this rotatability 44 is formed by a corresponding design of the retaining rod assembly 36 with a first part 278 and a second part 280 rotatable with respect to the first part 278. This is shown below in particular with reference to the Figures 15 to 18 explained in more detail.
  • the floor cleaning machine 10 includes a drive motor (in the Figures 1 to 3 (not shown), through which the cleaning roller unit 18 rotates
  • the cleaning roller unit 18 is driven about a rotational axis 46.
  • the unit has a single rotational axis 46, even though it comprises a multi-part cleaning roller.
  • the rotational axis 46 is parallel to the mounting surface 14. It is oriented perpendicular to the longitudinal axis 24. It is parallel to the pivot axis 40.
  • the pivot axis 40 of the pivotability of the retaining rod device 36 on the cleaning head 12 and the rotation axis 46 are coaxial to each other.
  • the drive motor is arranged on the cleaning head 12, or on the support rod assembly 36, or at a transition area between the support rod assembly 36 and the cleaning head 12. It acts on the cleaning roller unit 18 and provides a corresponding torque for a rotary drive of the cleaning roller unit.
  • the floor cleaning machine 10 can be mains powered or battery powered.
  • a battery holder 48 is provided which accommodates one or more batteries, and in particular rechargeable batteries.
  • the batteries can be permanently attached to the floor cleaning machine 10 or be removable from it.
  • the battery holder 48 is arranged on the support rod assembly 36.
  • an arrangement on the cleaning head 12 is also possible.
  • the floor cleaning machine 10 is specifically designed for wet cleaning of hard floors. It is equipped with a tank 50 for cleaning fluid.
  • the cleaning fluid is primarily fresh water, optionally with an additive for cleaning agents. (Regarding cleaning fluid from7)
  • the cleaning roller unit 18 can be directly moistened by the tank unit 50 and/or the floor 16 to be cleaned can be moistened. This improves the removal of dirt, and the corresponding cleaning fluid is absorbed by the cleaning roller unit 18 and transferred to the cleaning fluid tank unit 32.
  • the tank assembly 50 is arranged on the support rod assembly 36.
  • a corresponding supply device for cleaning fluid is provided, which leads from the tank assembly 50 to the cleaning head 12 in order to moisten the cleaning roller unit 18 and/or the floor 16 to be cleaned with cleaning fluid.
  • FIG 3 The basic functional structure of the cleaning head 12 is shown, and its basic operation is explained. Figure 3 explained.
  • the cleaning head 12 with its base 14 is placed on the floor 16 to be cleaned (in Figure 3 (This includes at least one additional mounting element, not shown).
  • the cleaning roller unit 18 acts on the floor to be cleaned and rotates in a direction of rotation 52.
  • the dirt fluid tank assembly 32 is located at the base 30 of the cleaning head 12.
  • a nozzle 54 is arranged on the cleaning head 12, which has a nozzle opening 56.
  • This nozzle opening 56 is in fluid communication with the dirt fluid tank assembly 32 or is itself a nozzle opening on the dirt fluid tank assembly 32.
  • the cleaning roller unit 18 rotates, it is rotated past the nozzle opening 56.
  • the dirt fluid tank assembly 32 has a bottom 58. This bottom 58 is, during proper operation of the floor cleaning machine 10, The cleaning base 16 faces the cleaning roller unit 18.
  • a wall 60 is attached to the base 58, facing the cleaning roller unit 18, and extends to the outlet opening 56. The wall 60 is adapted to the cylindrical shape of the corresponding cleaning roller of the cleaning roller unit 18.
  • the cleaning head 12 has a sweeping element 62, which serves to feed coarse dirt to the cleaning roller unit 18.
  • This coarse dirt is in Figure 3 indicated by double arrows 64.
  • the coarse dirt 64 which is provided via the sweeping element 62 of the cleaning roller unit 18, can be carried along by the cleaning roller unit 18 and thrown into the dirt fluid tank device 32 via the discharge opening 56.
  • the sweeping element 62 is arranged at the base 30 or, as in Figure 3 shown, arranged on the dirty fluid tank device 32.
  • the cleaning roller unit 18 is moistened with cleaning fluid via a supply device 66 for cleaning fluid.
  • This moistening is in Figure 3 indicated by the wavy arrows with the reference symbol 68.
  • the moistening element is located downstream of the outlet opening 56 with respect to the direction of rotation 52.
  • At least one scraper element 70 is provided, which is arranged at the base 30 and is positioned between the mouth opening 56 and the humidification area 68.
  • the scraper element 70 is movably positioned on the base 30.
  • the scraper element 70 is attached to a holder 72, which is pivotally hinged to the base 30.
  • This holder 72 is spring-loaded (in Figure 3 (not shown). The spring action presses the scraper element 70 against the cleaning roller unit 18.
  • the cleaning roller unit 18 has a covering on its cleaning rollers, which is arranged on a corresponding covering holder.
  • the covering is, for example, a textile material. However, it can also be a bristle covering.
  • the scraper element 70 is arranged so that it touches the bristles and preferably dips into them.
  • the spring action of the movable holder 72 ensures that it presses against or indents the bristles.
  • the scraper element 70 forms an outlet wall of the outlet device 54 for the outlet opening 56.
  • the scraper element 70 separates the area of moistening 68 from the outlet opening 56.
  • the scraper element 70 acts on the cleaning roller unit 18 and on the bristles in such a way that dirt fluid is removed from the corresponding cleaning roller (and in particular moist dirt fluid is removed) and conveyed via the outlet opening 56 into the dirt fluid tank device 32.
  • This dirt fluid 74 which is detached by the scraper element 70, may also contain coarse dirt particles that were not conveyed directly into the dirt fluid tank device 32 via the opening 56.
  • the floor cleaning machine 10 with the training according to Figure 3 It has a sweeping function that allows coarse dirt (and also dry coarse dirt) to be swept from the floor to be cleaned. It has a mopping function, by means of which the floor 16 to be cleaned can be moistened via the moistening 68 and wet dirt fluid can be absorbed and removed via the scraper element 70 and conveyed into the dirt fluid tank device 32.
  • the cleaning roller unit 18 is positioned on the cleaning head 12 and is therefore interchangeable. This allows, for example, the cleaning roller unit 18 or a single cleaning roller to be easily cleaned. This also enables adaptation to the specific cleaning process. For instance, if a cleaning roller of the cleaning roller unit 18 has a textile covering such as microfiber, wet cleaning and sweeping can be performed simultaneously. Alternatively, a cleaning roller with bristles can be used for a simple sweeping operation. (In particular, during a simple sweeping operation, the wetting of the cleaning roller unit 18 or the floor 16 to be cleaned is deactivated.)
  • the dirt fluid tank device 32 in particular with the sweeping element 62 fixed to it, is arranged to float relative to the base 30, in order, for example, to be able to position the sweeping element 62 in the same position relative to the cleaning roller unit 18, regardless of the bristle length of the cleaning roller unit 18.
  • the cleaning fluid is conveyed via the cleaning roller unit 18 into the cleaning fluid tank unit 32 without the need for a suction unit.
  • the cleaning fluid tank unit 32 can be removed from the cleaning head 12 for emptying.
  • a suitable suction unit and an associated additional dirty fluid tank are arranged on the support rod assembly 36.
  • the retaining rod device 36 has a first region 76 and a second region 78.
  • the first region 76 is arranged at an angle to the second region 78.
  • the first region 76 is a distal region, and the handle 38, and thus the proximal region, is attached to the second region 78.
  • control panel with several control elements is arranged on the handle 38 or on the second area 78.
  • the tank device 50 for cleaning fluid is arranged on the second area 78.
  • control panel includes a switch that can be used to select whether the cleaning roller unit 18 and/or the floor to be cleaned 16 is moistened with cleaning fluid from the tank unit 50.
  • the system uses cleaning fluid 50. This allows for either dry sweeping or wet mopping, depending on the operator's choice.
  • the first area 76 extends in a first longitudinal axis 80 (see also Figure 1 ), and the second area 78 along the second longitudinal axis 42.
  • the first area 76 and the second area 78 lie at an obtuse angle 82 ( Figure 1 ) to each other, which lies in the range between 120° and 170°.
  • this obtuse angle 82 is approximately 145°.
  • the first area 76 and the second area 78 are continuously connected.
  • the retaining rod assembly 36 is connected to the cleaning head 12 and the base 30 via a pivot joint 84 over the first section 76.
  • the pivot axis 40 of the pivot joint 84 coincides with the rotation axis 46 of the cleaning roller unit 18.
  • the pivot joint 84 is designed as an orbital joint. It comprises a path guidance device 86, which is fixedly mounted on the cleaning head 12 at its base 30. This path guidance device 86 includes a circular path section 88. The center of the circular path section 88 lies on the pivot axis 40/rotation axis 46.
  • the first area 76 is connected in a rotationally fixed manner to a counter device 90, which is supported on the track guidance device 86.
  • the counter device 90 is guided slidably on the circular track section 88 of the track guidance device 86; there is an orbital guidance of the counter device 90 on the circular track section 88 of the track guidance device 86.
  • At least three support points are provided for guiding the counter device 90 on the track guidance device 86.
  • the circular track section 88 is arranged with a portion behind the cleaning roller unit 18, relative to the longitudinal axis 24 of the cleaning head 12. With respect to a vertical axis 92, which is perpendicular to the longitudinal axis 24 and perpendicular to the mounting surface 14, the circular track section 88 is arranged with a portion above the cleaning roller unit 18.
  • the circular track section 88 for example, is designed at least approximately as a quarter-circle section, which encompasses the cleaning roller unit 18 in a sense.
  • the pivot joint is positioned centrally between the first lateral side 26 and the second lateral side 28 at the base 30. It is arranged symmetrically on the cleaning head 12. It lies on a median plane 94 (compare Figure 2 ), which lies midway between the first lateral side 26 and the second lateral side 28 and is oriented perpendicular to the axis of rotation 46 or pivot axis 40.
  • the middle plane 94 is also oriented perpendicular to the mounting surface 14.
  • a drive motor 98 which is in particular an electric motor, is provided for driving the cleaning roller unit 18 in the rotational movement of the rotational axis 46 with the direction of rotation 52. This is rotationally fixed to the support rod assembly 36, so that it pivots along with the support rod assembly 36 when it pivots about the pivot axis 40.
  • the drive motor 98 is positioned on the retaining rod device 36 and in particular on the first area 76.
  • the first area 76 of the retaining rod device 36 has a housing 100 which accommodates the drive motor 98.
  • a battery holder 48' is arranged on the first region 76 or on a transition between the first region 76 and the second region 78. (In the Figure 1 and 2 In the illustrated embodiment, the battery holder 48 is arranged on the second area 78.)
  • This free space 102 forms a pivot space in which the retaining rod device 36 is movable, in particular where the first area 76 is movable in this free space 102.
  • the open space 102 is open towards the rear end 22.
  • the housing 100 with the drive motor 98 is movable in the free space 102.
  • the free space 102 provides a large swivel angle range for the pivotability of the retaining rod device 36 around the swivel axis 40 relative to the base 30.
  • the floor cleaning machine 10 has a gearbox 104 ( Figure 7 ), which serves to transmit torque from the drive motor 98, which is positioned at a distance from the cleaning roller unit 18, to the cleaning roller unit 18.
  • the gear unit 104 also includes a reduction gear, which serves to reduce the rotational speed, so that the rotational speed of the cleaning roller unit 18 when rotating about the axis of rotation 46 is lower than the drive speed of the drive motor 98.
  • the transmission unit 104 includes, for example, a belt drive and the speed reduction gear.
  • the cleaning roller unit 18 is, or comprises, a roller mount 106.
  • the roller mount 106 in turn comprises a shaft 108, which is connected to the gear unit 104 in a torque-transmitting manner.
  • the shaft 108 rotates about the axis of rotation 46 when driven by the drive motor 98.
  • the shaft comprises 108 (compare Figure 6 ) a first wave section 110, a second wave section 112 and a middle section 114, which is connected to the first wave section 110 and the second wave section 112.
  • the wave 108 with the first wave section 110, the second wave section 112 and the middle section 114 forms a single wave with a single axis of rotation, namely the axis of rotation 46.
  • the middle part 114 lies midway between the first lateral side 26 and the second lateral side 28 and is located at the midplane 94.
  • the first shaft section 110 accommodates a first roller section 116
  • the second shaft section 112 accommodates a second roller section 118 of the cleaning roller unit 18.
  • the first roller section 116 and the second roller section 118 are separate units, but they rotate around the same axis of rotation 46 when they are mounted on the shaft 108.
  • the first roller section 116 which is attached to the first shaft section 110, extends to or almost to the first lateral side 26.
  • the second roller section 118 which is attached to the second shaft section 112, extends to or almost to the second lateral side 28. This leaves no or only a minimal roller-free gap between the cleaning roller unit 18 and the corresponding lateral sides 26 and 28. This enables cleaning close to the edge.
  • the central section 114 of the shaft 108 is roller-free.
  • the gear unit 104 is torque-actingly coupled to it.
  • a central drive for the cleaning roller unit 18 is present.
  • the first roller part 116 and the second roller part 118 are each placed onto the corresponding shaft part 110 or 112 from the outside and locked into place with the corresponding shaft part 110 or 112 to obtain a rotationally fixed connection.
  • the central section 114 of the shaft 108, and thus of the roller mount 106, and the pivot joint 84 are aligned. They lie on the central plane 94 and, in particular, are each designed to be mirror-symmetrical with respect to the central plane 94.
  • the cleaning head 12 has (at least) one support element 120.
  • exactly one support element 120 is provided ( Figure 7 , Figure 19(d) , Figure 23 , 24
  • the support element 120 is positioned at a distance from the cleaning roller unit 18 and, together with it, defines the installation surface 14.
  • the support element 120 is located at the base 30. Even if the dirt fluid tank assembly 32 is removed, the cleaning head 12, with the cleaning roller unit 18 and the support element 120, can be installed on a floor 16.
  • the support element 120 comprises a post 122 on which a roller or slider 124 is mounted.
  • the roller or slider 124 serves to support the cleaning head on the floor 16 to be cleaned.
  • the glider 124 for example a skid, is guided over the floor 16 to be cleaned when the floor cleaning machine 10 is guided.
  • the base 30 has an underside 126 facing the dirt fluid tank assembly 32. From this underside 126, the post 122 projects transversely and, in particular, vertically towards the mounting surface 14.
  • the support element 120 is aligned with respect to the longitudinal axis 24 in line with the central part 114 of the shaft 108.
  • the support element 120 is located on the median plane 94.
  • the central section 114 of the shaft 108 has no roller section, and during cleaning, a central stiffener on the central section 114 remains unaffected by the floor 16 to be cleaned. (Cleaning is achieved by traversing the area in an offset manner.) Due to the aligned arrangement of the support element 120, the support element 120 is displaced on an unaffected area of the floor 16.
  • the dirty fluid tank assembly 32 is adapted in its shape and dimensions to the base 30.
  • the dirty fluid tank assembly has a bottom 58 with a wall 16 and an outlet opening 56.
  • the dirty fluid tank assembly 32 has a bottom 127 and a top 128.
  • the top 128 of the dirty fluid tank assembly 32 faces the bottom 126 of the base 30.
  • the bottom 127 of the dirty fluid tank assembly 32 lies against the bottom 58 and faces away from the top 128.
  • the wall 60 and another wall 130 which closes off the dirt fluid tank assembly 32 with an interior for receiving dirt fluid.
  • the wall 60 of the dirty fluid tank assembly 32, on which the outlet opening 56 is located, has a cutout 132 (compare Figure 6 ), which is adapted to the central part 114 of the shaft 108.
  • the mouth opening 56 of the mouth device 54 comprises in particular a first opening part 134 and a second opening part 136.
  • the first opening part 134 is assigned to the first roller part 116 and the second opening part 136 is assigned to the second roller part 118.
  • the wastewater tank 32 may be configured to have a first chamber 138 and a second chamber 140.
  • the first opening section 134 is formed on the first chamber 138
  • the second opening section 136 is formed on the second chamber 140. Wastewater is coupled directly into the first chamber 138 via the first opening section 134 and directly into the second chamber 140 via the second opening section 136.
  • the two chambers 138 and 140 can be fluid-tightly separated from each other or fluid-effectively connected to each other, so that the dirty fluid can be distributed evenly in the dirty fluid tank device 32.
  • the dirty fluid tank assembly 32 has a cover 142, which at least partially forms the top surface 128. This cover 142 is spaced apart from the base 58.
  • the lid 142 can be removed when the dirt fluid tank assembly 32 has been removed from the cleaning head 12, in order to be able to empty the dirt fluid tank assembly 32.
  • the footplate 34 is arranged on the wall 130 of the waste fluid tank assembly 32. It is arranged such that, when the waste fluid tank assembly 32 is fixed at the base 30, it is spaced apart from the installation surface 14.
  • the footplate 34 When the dirt fluid tank assembly 32 is fixed to the cleaning head 12, the footplate 34 is aligned with the free space 102. It is a continuation of the free space 102 extending from the rear end 22. It is arranged in such a way that it does not obstruct the corresponding pivoting range of the support rod assembly 36 within the free space 102.
  • the tread plate 34 lies on the median plane 94 and is in particular arranged and designed in a mirror-symmetrical manner to this plane.
  • the tread plate 34 comprises a plate 144 which has raised edge walls 146 (compare Figure 5 The edge walls 146 are rounded.
  • the footplate 34 has a width (in a direction parallel to the pivot axis 40 or rotation axis 46) which is at least as wide as typical dimensions of a foot with shoes.
  • An operator can place their foot on the footplate 34 and then, by applying sufficient force, lift the cleaning head 12 to detach the dirt fluid tank assembly 32 from the base 30. This is described in more detail below.
  • the raised, rounded edge walls 146 of the footplate 134 prevent the operator's foot from slipping sideways. Sharp edges on the plate 144 are thus avoided.
  • spaced-apart ribs or grooves are arranged on the plate 144, which are intended to prevent the operator's foot from slipping off.
  • the footplate 34 is arranged in alignment with the extension of the free space 102. It is aligned with respect to the longitudinal axis 24 of the cleaning head 12, with respect to the pivot joint 84 and also with respect to the central part 114 of the shaft 108.
  • the wastewater tank system 32 has a discharge direction 148 ( Figure 6 ) away from the base 30.
  • the extraction direction 148 leads from the underside 126 of the base 30 towards the mounting surface 14.
  • the dirt fluid tank assembly 32 can be removed from the cleaning head 12 in such a way that, for example, by lifting the cleaning head 12 and pushing the dirt fluid tank assembly 32 (for example, at the foot tab 34) in the direction of removal 148, or by pulling the dirt fluid tank assembly 32 away from the base 30 in the direction of removal 148, it can be released and thus removed.
  • a space 150 is formed, bounded by the underside 126 of the base 30, in which the dirt fluid tank assembly 32 is positioned when fixed to the base 30.
  • the support element 120 is also located in this space.
  • the continuous recess 152 is dimensioned such that the support element 120 can pass through it and, accordingly, can also emerge when the dirty fluid tank assembly 32 is removed from the base 30.
  • the continuous recess 152 is closed on all sides.
  • the through-hole 152 has the shape of a (hollow) cylinder.
  • the dirty fluid tank assembly 32 is suspended from the base 30.
  • a plurality of brackets 154 are required for this purpose (compare Figure 11 and 13 ) provided, which are located at the base 30 and extend from their underside 126 towards the mounting surface 14.
  • a first holder and a second, spaced-apart holder are provided. These are designed as described below and, in particular, are identical.
  • the first holder and the second holder are arranged symmetrically to the central plane 94, and the space 102 lies between them.
  • a first position 156 is indicated where the first bracket is located, and a second position 158 is indicated where the second bracket is located. These are, as mentioned, the mounting points for the dirt fluid tank assembly 32 on the base 30.
  • the holders 154 are designed as holding domes or holding mushrooms.
  • the holder 154 and the associated receptacle 160 form a holder-receptacle combination 162, which is designed as a snap-fit connection device.
  • the holder 154 comprises a first element 164, which corresponds to a second element 166 of the receptacle 160 on the dirt fluid tank device 32.
  • the first element 164 has a receiving area 168 for the second element 166.
  • This receiving area 168 is, for example, cylindrical in shape.
  • the receiving area 168 of the first element 164 is bounded by a bead 170.
  • the bead 170 has a diameter (in a direction transverse to the height axis 92) which is larger than the corresponding diameter of the receiving area 168.
  • the bead 170 is arranged as an annular region on the first element 164. It has a first surface region 172, which faces the receiving region 168. A second surface region 174 adjoins the first surface region 172 and faces away from the receiving region 168.
  • the bead 170 is conically shaped on the first surface area 172, extending away from the receiving area 168. It is also conically shaped on the second surface area 174, with an inclination towards the receiving area 168.
  • the first surface area 172 forms an inclined plane which, as will be explained in more detail below, requires force to detach the second element 166 from the first element 164.
  • the second surface area 174 also forms an inclined plane which requires force to connect the second element 166 to the first element 164.
  • the dirt fluid tank device 32 is to be inserted at the base 30.
  • the force required is determined by the cone angle of the first surface area 172 and by the cone angle of the second surface area 174.
  • the cone angle of the first surface area 172 is larger than the cone angle of the second surface area 174 (compare Figure 11).
  • the first cone angle for the first surface area 172 is designated with the reference numeral 176.
  • the second cone angle for the second surface area 174 is designated with 178.
  • the second cone angle 178 is smaller than the first cone angle 176. This means that the force required to release and remove the dirt fluid tank assembly 32 from the base 30 is greater than the force required to insert (fix) the dirt fluid tank assembly 32 onto the base 30.
  • the second element 166 on the receptacle 160 of the dirt fluid tank device 32 is designed as a spreading element, which has at least two and preferably at least three tabs which are movable transversely to the vertical axis 92 (with an increase in the distance between them).
  • the second element 166 acting as a spreading element, is pushed onto the holder 154.
  • a spreading action is performed by driving over the second element 166 of the second surface area 174 with appropriate force, increasing the distance between the tabs until the receptacle area 168 is reached.
  • the tabs of the spreading element 166 are spring-loaded and snap back into place.
  • the bead 170 acts as a stop, preventing the dirt fluid tank assembly 32 from falling off the base 30.
  • a snap-fit connection is established via the holder-mount combination 162.
  • an operator applies force to the dirt fluid tank device 32 and moves the second element (the spreading element) over the bead 170 and thereby over the first surface area 172.
  • a corresponding force is required to spread the second element 166 (the spreading element) in order to enlarge the cross-section sufficiently so that the bead 170 can be traversed by the second element 166.
  • FIG. 13 A corresponding intermediate state after driving over it is in Figure 13 shown.
  • the locking connection is released there.
  • the spreading element 166 (the second element 166) has passed over the bead 170 and lies outside the receiving area 168.
  • the receptacles 160 on the dirt fluid tank assembly 32 are open at the top 128 to allow the insertion of the corresponding holder 154.
  • the receptacle has a hollow, frustoconical extension 180 towards the top 128. This extension 180 serves as an insertion and centering aid for the pin-shaped holder 154 into the associated receptacle 160.
  • the dirt fluid tank assembly 32 is held at the base 30 via the holder-receiver combination 162 (at locations 156, 158), then the dirt fluid tank assembly 32 is movably mounted (in one direction/opposite direction parallel to the vertical axis 92) and thus floating.
  • the weight of the floor cleaning machine 10 rests on the The cleaning floor 16 is supported by the cleaning roller unit 18 and the support element 120.
  • the dirt fluid tank assembly 32 does not have this support function.
  • the dirt fluid tank assembly 32 is mounted to be movable (floating) transversely and, in particular, perpendicular to the installation surface 14.
  • the sweeping element 62 is still in its optimal position relative to the floor 16 to be cleaned.
  • the swivel joint 84 gives the retaining rod device 36 a swivel angle range of swivel mobility to the cleaning head 12, which lies between a lower limit and an upper limit.
  • a swivel angle of 182 (compare) Figure 19(a) ) is in particular quantitatively defined as an angle between the second longitudinal axis 42 of the support rod device 36 and a plane 184 parallel to the mounting surface 14.
  • a minimum swivel angle 182, i.e., the lower limit, is 0° or greater than 0°.
  • the lower limit is less than 50° and preferably less than 40° and especially preferably less than 30°.
  • the lower limit is defined by the attachment of the retaining rod device 36 to an underside which defines the free space 102 (compare Figure 9 ) limited, predetermined.
  • the lower limit can be at approximately 0° and can in particular be less than 10° and preferably less than 5°.
  • the swivel angle range has an upper limit ( Figure 19(b) ).
  • the upper limit of the swivel angle 182 is preset as a detent position ( Figure 19 It lies particularly in the range between 80° and 120° of the swivel angle 182. In a preferred embodiment, it lies at approximately 90° ( Figure 19(b) ).
  • the upper limit is such that a parking position with a detent position is provided for the retaining rod device 36 with respect to the cleaning head 12, whereby pivoting with respect to the cleaning head 12 is then blocked in the sense that an increased force is necessary to enable pivoting of the retaining rod device 36 at the pivot joint 84 about the pivot axis 40 again.
  • the holder-receiver combination 162 is described as consisting of a holder 154, which is rigidly connected to the base 30, and a receptacle 160, which is arranged on the wastewater tank assembly 32.
  • the holder 154 is rod-shaped and the receptacle 160 is an opening.
  • a kinematic reversal is also possible, in which a rod-shaped element is arranged on the wastewater tank assembly 32 and a corresponding receptacle in the form of an opening is located on the base 30.
  • a locking device 186 ( Figures 10 , 12 ) provided.
  • the locking device 186 comprises one and in particular at least two and preferably exactly two ( Figures 10 , 12 ).
  • the pin-immersion opening combinations 188 are arranged in the area of the pivot joint 84.
  • FIG. 9 A first position 190 and a second position 192 are shown, at which respective pin-dip opening combinations 188 are positioned.
  • the first position 190 and the second position 192 are mirror-symmetrical about the central plane 94.
  • the pin-immersion opening combination 188 comprises an immersion opening 194, which is arranged in a rotationally fixed manner with respect to the web guidance device 86 on the cleaning head 12 and in particular on the base 30.
  • a pin 196 is provided, which is rotationally fixed to the retaining rod device 36 and can be pivoted with it about the pivot axis 40 relative to the cleaning head 12.
  • the pin 196 is mounted on a guide 198 and is linearly displaceable along a displacement axis 200.
  • the displacement axis 200 is movable with the pivoting movement of the retaining rod device 36 relative to the cleaning head 12. It is oriented transversely to a circumference of the circular track section 88.
  • the pin 196 is spring-loaded via a spring assembly 202, the spring force of which tends to push the pin 196 towards the circumference of the circular track section 88.
  • the spring force of the spring assembly 202 acts on the cleaning head 12.
  • the pin 196 has a bulge 204 ( Figure 10 ), which is arranged in a ring shape.
  • the guide 198 has an annular stop 206 for the bead 204. By contacting the bead 204 with the stop 206, a A lock is formed to prevent the linear movement of the pin 196 on the guide 198 ( Figure 10 ).
  • a basic position of the pin 196 is such that the spring device 202 presses the pin 196 to the circumference of the circular track section 88 until the bead 204 rests against the stop 206 ( Figure 10 This basic position is present when the pin 196 is not immersed in the immersion opening 194.
  • the basic position is also present when the parking position 185 of the retaining rod device 36 and the cleaning head 12 has not been reached, that is, when the upper limit of the swivel angle 182 has not been reached. See also Figure 10 , whereby the pin 196 is not immersed in the immersion opening 194.
  • the respective immersion opening 194 is formed on a block element 208.
  • the block element 208 encompasses the immersion opening 194 as a recess or bore.
  • a first inclined plane 210 is arranged or formed on the block element 208 outside the immersion opening 194. This plane rises from the circular path section 88. It is located at the end of the circular path section 88, and the distance to the pivot axis 40 increases at the first inclined plane 210.
  • the first inclined plane 210 serves to insert the pin 196 into the insertion opening 194, displacing the pin 196 away from the stop 206 with a corresponding force against the spring force of the spring device 202. This force must be applied by an operator.
  • the pin 196 has a first contact surface 212, which is formed at one end of the pin 196.
  • the first contact surface 212 is attached to the first inclined plane 210 adapted.
  • the first contact surface 212 is guided along the first inclined plane 210 while in contact with the first inclined plane 210.
  • the immersion opening 194, which is formed in the block element 208, has a wall which is designed as a second inclined plane 214.
  • the pin 196 is guided along the circular path section 88 by increasing the swivel angle 182 and then via the first inclined plane 210 into the immersion opening 194.
  • the second inclined plane 214 serves to guide the pin 196 out of the immersion opening 194 by reducing the swivel angle 182 starting from the upper limit.
  • the pin 196 has a second contact surface 216, which is adapted to the second inclined plane 214.
  • the second contact surface 216 is guided along the second inclined plane 214 (while reducing the pivot angle 182), in contact with the second inclined plane 214.
  • the spring force of the spring assembly 202 must be overcome for this purpose.
  • the first inclined plane 210 has a smaller angle than the second inclined plane 214.
  • the force required to release the lock by pulling the pin 196 out of the insertion opening 194 is greater than the force required to move the pin 196 into the insertion opening 194 via the second inclined plane 214, thereby engaging the lock and reaching the parking position 185.
  • An alternative embodiment of a pin 196' ( Figure 14 ) has a contact surface 197 at one tip, which is conically shaped.
  • the pin is spherically shaped at the tip (in Figure 14 (indicated in broken lines).
  • the pin 196 or the pin 196' is made in particular of a metallic material.
  • a tip 218 lies between the first contact surface 212 and the second contact surface 216 on this circular track section 88.
  • a circular track section 88 is provided which is separate from this circular track section 88 for the counter device 90, but is concentric to the pivot axis 40.
  • FIG 19(a) A "working" swivel position is shown.
  • the swivel angle 182 is between the lower and upper limits.
  • the floor cleaning machine 10 can be used to work the floor 16 to be cleaned. An operator adjusts the swivel angle 182 to their height. If a piece of furniture or the like needs to be accessed, the swivel angle 182 is reduced.
  • the operator guides the cleaning head 12 over the floor 16 to be cleaned using the support rod 36 with the adapted swivel angle 182.
  • the cleaning roller unit 18 rotates around the axis of rotation 46. Due to the direction of rotation 52, the cleaning head 12, and thus the floor cleaning machine 10, is propelled forward.
  • the support rod 36 is directly connected to the roller mount 106 and thus to the cleaning roller unit 18.
  • the cleaning roller unit 18 pivots along with it. If it is supported against the floor 16 to be cleaned, it rolls along the floor 16. This movement is superimposed on the rotation of the cleaning roller unit 18 about the axis of rotation 46 and has no negative effect on the cleaning result or the like. Due to the rotation of the cleaning roller unit 18, the angular range that the cleaning roller unit 18 traverses in the same unit of time as during a pivoting movement is much larger.
  • the retaining rod device 36 is directly connected to the cleaning roller unit 18 and its weight acts directly on the cleaning roller unit. 18.
  • the weight of the support bar 36 presses the cleaning roller unit 18 with the roller parts 116, 118 against the floor 16 to be cleaned.
  • the support bar 36 by virtue of its own weight, provides a contact force for the cleaning roller unit 18 against the floor 16 to be cleaned. This improves the cleaning effect; the mechanical action of the cleaning roller unit 18 on the floor 16 to be cleaned is enhanced.
  • the dirt removal capacity of the floor cleaning machine 10 is improved.
  • pivot joint 84 as an orbital pivot joint results in a large pivot range between the lower limit and the upper limit.
  • the operator increases the swivel angle 182 until the parking position 185 is reached ( Figure 19(b) ) and the retaining rod assembly 36 is locked to the cleaning head 12 via the locking device 186.
  • the retaining rod assembly 36 cannot "fall down” on its own (due to its own weight) by reducing the swivel angle 182 towards the lower limit.
  • parking position 185 the floor cleaning machine 10 is parked, for example, for storage.
  • an automated cleaning process of the cleaning roller unit 18 and, if applicable, other parts of the cleaning head 12 is carried out via a corresponding cleaning station or storage station (not shown in the figures).
  • a corresponding cleaning station or storage station not shown in the figures.
  • the dirt fluid tank unit 32 can also be emptied at the floor station.
  • the dirt fluid tank assembly 32 can also be easily removed from the cleaning head 12 ( Figure 19(c), (d) ).
  • This torque is applied in the park position 185, in which the retaining rod assembly 36 is locked to the base 30 by the locking device 186.
  • the swivel angle 182 can be increased slightly, if necessary, by adjusting the play in the play-immersion opening combinations 188. Once this play is exhausted, the cleaning head 12, which is then supported on the base 16 by the cleaning roller unit 18, rotates relative to the dirt fluid tank assembly 32. This raises the base 30 relative to the dirt fluid tank assembly 32.
  • the operator's intervention on the footplate 34 keeps the dirt fluid tank assembly 32 attached to the floor 16.
  • the operator uses force 220 to fix the dirt fluid tank assembly 32 to the floor 16.
  • the cleaning head 12 it is also possible for the cleaning head 12 to be removed from the dirt fluid tank assembly 32 by pulling upwards, with an operator fixing the dirt fluid tank assembly 32 to the floor 16 by applying force to the foot tab 34.
  • FIG 19(d) The diagram shows a situation that arises after the dirt fluid tank assembly 32 has been detached from the cleaning head 12, either by pivoting and lifting or by pulling it directly upwards.
  • the cleaning head 12 is then permanently removed from the dirt fluid tank assembly 32 within the retaining rod assembly 36.
  • FIG 19(e) The figure shows a situation in which the cleaning head 12 is placed back onto the dirt fluid tank assembly 32, i.e., in which the dirt fluid tank assembly 32 is fixed to the cleaning head 12.
  • the dirt fluid tank assembly 32 is placed on the base 16. If necessary, an operator fixes the dirt fluid tank assembly 32 to the base 16 by applying force to the footplate 34.
  • the cleaning head 12 is then placed on top of the dirt fluid tank assembly 32 in such a way that the corresponding holder 154 is immersed in the associated receptacle 60 on the dirt fluid tank assembly 32 until a locking action is achieved (and accordingly the respective second element 166 is then located in the associated receiving area 168 of the first element 164).
  • the cleaning head 12 is preferably placed on the cleaning head 12 with a parking position 185 of the retaining rod device 36 in relation to the cleaning head 12, i.e. with a locking of the retaining rod device 36 to the cleaning head 12 by the locking device 186.
  • the operator can remove the dirt fluid tank assembly 32 from the cleaning head 12 and insert it into the cleaning head 12 hands-free; that is, he does not have to touch the dirt fluid tank assembly 32.
  • he can perform the corresponding operations by grasping and holding the retaining rod assembly 36. He does not have to bend down or kneel.
  • the wiping element 70 is movably arranged on the cleaning head 12 and on the base 30 via the holder 72.
  • An embodiment of a holder 72 is shown.
  • the holder 72 has a base 222.
  • the base 222 has a rear end 224 and a front end 226.
  • the base 222 is wider at the front end 226 than at the rear end 224;
  • the base 222 has a first region 228 and a second region 230, wherein the rear end 224 is located at the first region 228 and the front end 226 is located at the second region 230.
  • the holder 72 is pivotally mounted on the base 30 of the cleaning head 2 via the first area 228.
  • the second area 230 carries the scraper element 70 and a comb element 232.
  • shaft stubs 234 are arranged, projecting laterally outwards. Opposite shaft stubs 234 are provided, which are aligned in a straight line.
  • a pivot axis 236 is defined by the shaft stubs 234. With the holder 72 fixed at the base 30, the pivot axis 236 is parallel to the pivot axis 40 or parallel to the rotation axis 46. It is parallel to the mounting surface 14.
  • a continuous scraper element 70 is provided for the cleaning roller unit 18, which acts on both the first roller part 116 and the second roller part 118 ( Figure 25(a) In particular, no recess or the like is provided for the central part 114.
  • the scraper element 70 extends continuously between a first end face 238 and an opposing second end face 240.
  • the scraper element 70 is arranged or formed as a web on the second area 230.
  • this web is integrally connected to the second area 230, that is, integrally connected to the holder 72.
  • the comb element 232 is also located on the holder 72. It acts on the cleaning roller unit 18 and serves to collect hair; the comb element 232 is a hair comb.
  • the comb element 232 comprises at least one row 242 and, in particular, a plurality of rows 242 of pins 244. Adjacent pins 244 are spaced apart from each other. A pin dips into a set 246 (compare, for example, Figure 20 ) the cleaning roller unit 18 in order to "filter out” hair from the cleaning roller unit 18.
  • scraper element 70 will immerse itself in the stock 246.
  • the comb element 232 is positioned downstream of the scraper element 70.
  • the comb element 232 (the rows 242) are arranged on the second area 230 between the front end 226 and the scraper element 70 (compare Figure 30 ).
  • the comb element 232 extends over a shorter transverse length than the scraper element 70, meaning that the distance between the outer ends of the comb element 232 is smaller than the distance between the end faces 238 and 240 of the scraper element 70 ( Figure 30 ).
  • the holder 72 is pivotally mounted at the base 30. It is spring-loaded to press the scraper element 70 and the comb element 232 into the bristle 246.
  • a corresponding spring mechanism is provided, which is located, for example, in the area of the shaft stubs 234 at the corresponding pivot bearing 250. This is shown in Figure 20 indicated by the reference number 252.
  • a corresponding spiral spring of the spring assembly it is possible, for example, for a corresponding spiral spring of the spring assembly to be supported at the base 30 and at the second area of the holder 72 in order to press it against the cleaning roller unit 18.
  • the scraper element 70 is arranged as a web 254 on the second area 30.
  • This web 254 has a first flank 256, which faces the mouth opening 56. It has an opposing second flank 258, which faces away from the mouth opening 56 ( Figure 20).
  • the second flank 258 faces the comb element 232.
  • An edge 260 lies between the first flank 256 and the second flank 258.
  • a contact line 262 runs through the edge 260 ( Figure 25 ) formed. This corresponds to the edge profile and can be described by a mathematical curve.
  • the web 254 of the scraper element 70 has a triangular cross-section over the first flank 256 and the second flank 258 (compare Figure 20
  • the contact line 262 has a finite width.
  • Contact line 262 is located in stocking 246 (compare Figure 20 ) or at least rests against the fitting 246.
  • the scraper element 70 comes into contact with or is immersed in the fitting 246 via the contact line 262.
  • the wiper element 70 is designed as a guide element for dirt fluid on the cleaning roller unit 18.
  • the design is, in one embodiment ( Figure 25(a) ) such that the dirt fluid is not only removed from the cleaning roller unit 18 (from the brush 246) via the scraper element 70, but is also guided in a defined manner to a central area 264.
  • This central area 264 is located at the cleaning roller unit 18 and at the scraper element 70. From the central area 264, the dirt fluid (predominantly) is coupled into the outlet opening 56.
  • the central area 264 is located at the central plane 94.
  • the wiper element 70 is curved.
  • the contact line 262 has a first length L 1 (arc length) between the first end face 238 and the second end face 240.
  • a distance D between the first end face 238 and the second end face 240, wherein a distance direction for the distance D is parallel to the pivot axis 236 or parallel to the pivot axis 40 or parallel to the rotation axis 46, is smaller than this length L 1 .
  • the cleaning roller unit 18 (as a combination of first cleaning roller 116 and second cleaning roller 118 with a gap between them) has a second length L 2 in the spacing direction (i.e. parallel to the axis of rotation 46) (compare Figure 4 ), which is smaller than the length L 1 .
  • the curvature of the wiper element 70 at the contact line 262 can be two-dimensional or three-dimensional in the sense that a mathematical curve which describes the course of the contact line 262 and is a curved curve can be a planar curve (two-dimensional curvature) or a spatial curve (three-dimensional curvature).
  • the corresponding curve which mathematically describes the course of the contact line 262 then mathematically exhibits a first curvature (in the sense of a differential geometric curvature), or exhibits a first curvature and a second curvature.
  • the first curvature is negative, meaning that the corresponding mathematical curve describing the course of contact line 262 is concave, or the first curvature and the second curvature are each negative and the corresponding curve is a concave curve.
  • the outlet 54 forms a discharge area for the cleaning fluid from the cleaning roller unit 18 into the cleaning fluid tank unit 32.
  • the contact line 262 is concave towards this discharge area, i.e., towards the outlet opening 56. This concave shape is located on the first flank 256.
  • the contact line 262 has the shape of a circular arc segment.
  • the corresponding mathematical curve describing the path of the contact line 262 has a constant curvature.
  • a first curvature can be provided, which is constant, and if the contact line 262 can be described by a spatial curve, a constant second curvature can be present.
  • a radius of curvature R lies in the range between 2L 2 and 6L 2 (2L 2 ⁇ R ⁇ 6L 2 ).
  • the wiper element 70 has a vertex 270 above the contact line 262, which in one embodiment (see Figure 25(a) ) is arranged on the median plane 94.
  • the course of the mathematical curve that describes the course of the contact line 262 can be described in cylindrical coordinates.
  • the contact line 262 is mirror-symmetrical with respect to the vertex 270 or the median plane 94 ( Figure 25(a)
  • a polar angle ⁇ varies along the curve.
  • Figure 21 is a cut through the cleaning head 12 at point A according to Figure 25 shown, and in Figure 22 a cut at point B (that is, at the vertex 270).
  • the outlet opening 56 along the scraper element 70 has a third length L3 , which is smaller than the first length L1 . Due to the guiding function of the scraper element 70, the dirt fluid is transported into the discharge area (towards the outlet opening 56) even at the cleaning roller unit 18. A smaller outlet opening 56 is then sufficient. This, in turn, reduces the contamination area on the floor cleaning machine 10.
  • the curvature of the wiper element 70 creates a guide zone for the cleaning fluid on its surface and also in the penetration area of the wiper element 70.
  • the cleaning fluid is guided through this guide zone on the cleaning roller unit 18 by the wiper element 70 to the central area 264.
  • Any foam that may occur at the cleaning roller unit 18 is guided to the central area 264 by the scraper element 70.
  • a scraper element 70 was described, which is assigned to the cleaning roller unit 18 with first roller part 116 and second roller part 118 and in which the apex 270 is arranged on a central plane.
  • FIG. 25(b) An alternative embodiment is shown with a scraper element that is not continuous.
  • Each roller section 116 or 118 is assigned its own scraper element, and these scraper elements are arranged on a single holder (the holder 72).
  • a contact line 262' is shown for the example case of the first roller part 116.
  • the first roller section has a length L 2 *.
  • This length L 2 * lies between the corresponding end faces of the first roller part 116 (or the second roller part 118).
  • the corresponding edge element has the edge profile 262', which is symmetrical.
  • the corresponding stripping element which is assigned to the first roller part 116 (or the second roller part 118), is circularly curved, with a radius of curvature R* lying particularly in the range between 2L 2 * and 6L 2 * (2L 2 * ⁇ R* ⁇ 6L 2 *).
  • the combination of the scraper elements has a "double hump shape", whereby in the combination the corresponding scraper elements can then be spaced apart or continuous.
  • the progression is as follows: Figures 26 or 27 asymmetrical.
  • Figures 26 or 27 asymmetrical.
  • the overall profile of the cleaning roller unit 18, comprising the first roller section 116 and the second roller section 118, is symmetrical. In this embodiment, the flow is directed outwards.
  • the design of the curved scraper element is also possible if the cleaning roller unit only has one roller part.
  • the design of the scraper element 70 with a curvature was described using the floor cleaning machine 10 as an example. This solution of the curved design can also be applied to other types of surface cleaning machines. use, for example, on a self-driving and self-steering cleaning machine (cleaning robot).
  • the floor cleaning machine 10 works as follows: For cleaning operations, the cleaning head 12 is positioned on the floor 16 to be cleaned. An operator guides the cleaning head 12 over the floor 16 using the support rod 36. After being switched on, the cleaning roller unit 18 rotates around the axis of rotation 46, driven by the drive motor 98.
  • cleaning fluid is supplied from the tank device 50 for cleaning fluid, in particular to the cleaning roller unit 18.
  • the floor 16 to be cleaned is moistened to improve dirt removal. Dirt is picked up and transported via the cleaning roller unit 18 to the scraper element 70.
  • the cleaning fluid which is primarily liquid containing dirt particles, is removed by the cleaning roller unit 18 and conveyed to the cleaning fluid tank 32.
  • the guiding element function of the wiper element 70 due to its corresponding curvature, results in a simplified discharge of the dirt fluid.
  • the sweeping element 62 feeds coarse dirt to the cleaning roller unit 18. This transports the coarse dirt directly into the dirt fluid tank 32 and/or it is removed by the scraper element 70.
  • Hair is removed from the cleaning roller unit 18 via the comb element 232.
  • the cleaning roller unit 18 in which the bristle 246 is a textile material, is used particularly in wet cleaning operations.
  • the cleaning roller unit 18 can also be used for sweeping.
  • the floor cleaning machine 10 allows for either dry cleaning or wet cleaning.
  • the orbital joint 84 supports the support rod 36 against the cleaning roller unit 18, exerting a corresponding contact force on the floor 16 to be cleaned. This increases the mechanical action of the cleaning roller unit 18 on the floor 16 and improves the dirt removal and dirt absorption capacity of the floor cleaning machine 10.
  • the cleaning roller unit 18 experiences a maximum contact pressure via the retaining rod device 36 over the floor cleaning machine 10 itself.
  • the dirt fluid tank assembly 32 always remains in the same position relative to the floor 16 to be cleaned. This also allows the sweeping element 62 to be kept in the same position relative to the floor 16. This results in improved coarse dirt pickup and overall improved cleaning.
  • the swiveling of the support rod device 36 on the cleaning head 12 results in simplified operation. This also allows for good clearance under furniture and the like.
  • the provision of the footplate 34 and the parking position 185 allows the dirt fluid tank assembly 32 to be easily removed from the cleaning head 12, and the cleaning head 12 can be easily attached to the dirt fluid tank assembly 32. In particular, the operator does not need to touch the dirt fluid tank assembly 32 with their hands to remove or attach it.
  • the swivel joint 84 as an orbital joint, it is ensured that, in every swivel position of the support rod device 36 to the cleaning head 12 about the swivel axis 40 within the swivel angle range, the dirt fluid tank device 32 always assumes the same position relative to the floor 16 and remains parallel to the floor 16.
  • a locking mechanism is achieved and the floor cleaning machine 10 is in a stable position, meaning that the retaining rod device 36 is locked and the floor cleaning machine 10 "does not fall over by itself".
  • the at least one support element 120 which is arranged at the base 30 (and not at the dirt fluid tank assembly 32), provides optimized support for the weight of the cleaning head 12 with the dirt fluid tank assembly 32 on the floor 16 to be cleaned.
  • a dirt fluid tank assembly 32 with a relatively large capacity for dirt fluid can be realized.
  • the retaining rod device 36 is provided to be rotatable about the axis of rotation 41, in particular with regard to the handle 38.
  • the retaining rod device 36 comprises a first part 278 and a second part 280, wherein the second part 280 is rotatable about the axis of rotation 41 relative to the first part 278.
  • the first part 278 coincides with the first area 76 and the second part 280 coincides with the second area 78 of the retaining rod device 36.
  • the axis of rotation 41 is coaxial with the first longitudinal axis 80.
  • the axis of rotation 41 it is also possible for the axis of rotation 41 to be parallel with, for example, the second longitudinal axis 42. The following describes an embodiment in which the axis of rotation 41 is parallel with the first longitudinal axis 80.
  • the drive motor 98 and the gear unit 104 do not rotate with it. These are arranged on the first part 278.
  • a locking device 282 is provided ( Figures 15 to 18 ), which, on the one hand, releases the rotation of the second part 280 to the first part 278 (of the second area 78 to the first area 76) outside of a locking position 284 ( Figure 15 , 16 ) and in the locking position 284, the rotation of the second part 280 of the retaining bar device 36 to the first part 278 of the retaining bar device 36 about the axis of rotation 41 is blocked ( Figures 17 , 18 ).
  • the locking device 284 comprises a slide 288, which is movable and in particular linearly movable on the first part 278 (on the first Area 76).
  • a displacement axis 289 is in particular parallel to the rotation axis 41.
  • the slide 288 has a nose 290 in the area of a first end (compare for example Figure 16 ).
  • the slide 288 can be supported on the cleaning head 12 and on a corresponding counter surface 292 via this lug 290. Outside the park position 185, the lug 290 is spaced apart from the counter surface 292. When the park position 185 is reached, the lug 290 acts on the counter surface 292, causing the slide 288 to move in the direction of movement 289.
  • the slide 288 is spring-supported and mounted on the first part 278 via a spring assembly 294. The spring assembly is arranged and designed such that it pushes the slide 288 with the lug 290 towards the cleaning head 12.
  • the spring force of the spring assembly 294 must be overcome. This overcoming of the spring force of the spring assembly 294 occurs when the parking position 185 is reached.
  • the slide 288 By supporting the nose 290 on the opposite surface 292, the slide 288 as a whole is moved towards the second part 280.
  • the slide 288 has an immersion element 296.
  • the immersion element 296 can immerse itself in a corresponding immersion opening 298 of the second part 280. This creates a positive fit with respect to rotation about the axis of rotation 41, and the second part 280 of the retaining rod assembly 36 (the second section 78) can no longer rotate about the axis of rotation 41 relative to the first part 278 (the first section 76).
  • the spring mechanism 294 acts on the slide 288 in such a way that it moves it towards the cleaning head 12 or holds it there.
  • the immersion element 296 is then exposed from the immersion opening 298, and outside of the locking position 284, the second part 280 can be rotated relative to the first part 278 about the pivot axis 41.
  • the locking device 284 has an overload protection 300.
  • This overload protection 300 essentially serves to prevent damage in the event of rotation in the park position 185 about the axis of rotation 41.
  • the slide 288 is (at least) formed in two parts, with a first part 302 and a second part 304.
  • the nose 290 is attached to the first part 302.
  • the immersion element 296 is attached to the second part 304.
  • the second part 304 is slidably mounted on the first part 302, with support provided by a spring device 306.
  • the spring assembly 306 is "hard” compared to the spring assembly 294 and especially significantly harder than the spring assembly 294.
  • the spring force of the spring device 306 acts in such a way that it pushes the second part 304 away from the first part 302 until a stop 308 (compare for example Figure 16 ) of the second part 304 at the first part 302.
  • the slide 288 as a whole, including the first part 302 and the second part 304 is movable in the displacement direction 289.
  • the slide 288, with the first part 302 and the second part 304, can accordingly reach the locking position 284 in the park position 185 and, outside the park position 185, outside the Locking position 284 and enable the rotation of the second part 280 to the first part 278 about the axis of rotation 41.
  • the slide 288 In the locked position 284, the slide 288 cannot move with respect to the direction of displacement 289, or at most can move with a certain amount of play.
  • a movement lock towards the cleaning head 12 is provided by the nose 290.
  • This movement lock towards the second part 280 is achieved by the immersion element 296, which is immersed in the immersion opening 298.
  • the slide 288 cannot move as a whole in the direction of displacement 289.
  • the second part 304 can move relative to the first part 302 by overcoming the spring force of the spring assembly 306, and can move away from the stop 308. This allows, in particular, the immersion element 296 to move out of the immersion opening 298. This reduces the risk of damage, as movement is possible.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Claims (21)

  1. Machine de nettoyage de sol, comprenant une tête de nettoyage (12), au moins une unité de rouleau de nettoyage (18) qui est agencée au niveau de la tête de nettoyage (18) de manière à pouvoir tourner autour d'un axe de rotation (46), et un dispositif formant manche (36) qui est retenu de manière à pouvoir pivoter au niveau de la tête de nettoyage (12) par l'intermédiaire d'une articulation de pivotement (84), un axe de pivotement (40) de l'articulation de pivotement (84) coïncidant avec l'axe de rotation (46) de la au moins une unité de rouleau de nettoyage (18), caractérisée en ce que l'articulation de pivotement (84) est réalisée sous la forme d'une articulation orbitale avec un guidage orbital de trajectoire du dispositif formant manche (36) au niveau de la tête de nettoyage (18).
  2. Machine de nettoyage de sol selon la revendication 1, caractérisée par au moins une des caractéristiques ci-dessous :
    - l'articulation de pivotement (84) présente un dispositif de guidage de trajectoire (86) qui est situé sur la tête de nettoyage (12) de manière à être solidaire en rotation et qui présente une section de trajectoire circulaire (88) avec un centre situé sur l'axe de pivotement (40), et l'articulation de pivotement (84) présente un dispositif homologue (90) qui est situé sur le dispositif formant manche (36) de manière à être solidaire en rotation et qui s'appuie sur le dispositif de guidage de trajectoire (86), et
    - la au moins une unité de rouleau de nettoyage (18) est agencée dans la région d'une extrémité avant (20) de la tête de nettoyage (12), avec les caractéristiques ci-dessous :
    - une sous-région de la section de trajectoire circulaire (88) est agencée derrière la au moins une unité de rouleau de nettoyage (18) par rapport à un axe longitudinal (24) de la tête de nettoyage (12) ;
    - une sous-région de la section de trajectoire circulaire (88) est agencée au-dessus de la au moins une unité de rouleau de nettoyage (18) par rapport à un axe vertical (92) de la tête de nettoyage (12) ;
    - le dispositif homologue (90) s'appuie sur le dispositif de guidage de trajectoire (86) par l'intermédiaire d'au moins trois points d'appui.
  3. Machine de nettoyage de sol selon la revendication 1 ou 2, caractérisée en ce que l'articulation de pivotement (84) est agencée de manière centrée entre un premier côté latéral (26) et un second côté latéral (28), situé à distance, de la tête de nettoyage (12).
  4. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce que lors d'un pivotement du dispositif formant manche (36) autour de l'axe de pivotement (40), la au moins une unité de rouleau de nettoyage (18) se déplace en même temps.
  5. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une pédale (34) est associée à la tête de nettoyage (12) dans la région d'une extrémité arrière (22) de la tête de nettoyage (12), l'extrémité arrière (22) étant opposée à une extrémité avant (20) et la au moins une unité de rouleau de nettoyage (18) étant agencée dans la région de l'extrémité avant (20), avec au moins une des caractéristiques ci-dessous :
    - la pédale (34) est agencée par rapport à l'articulation de pivotement (84) de manière à être en alignement avec un axe longitudinal (24) de la tête de nettoyage (12) et est agencée en particulier de manière centrée entre un premier côté latéral (26) et un second côté latéral (28) de la tête de nettoyage (12) ;
    - présentant au moins une des caractéristiques ci-dessous :
    - la pédale (34) fait saillie à partir d'une extrémité arrière d'une base (30) ou d'une enveloppe de la tête de nettoyage (12) ;
    - la pédale (34) se situe au niveau d'un dispositif formant réservoir de fluide sale (32) qui est agencé de manière amovible au niveau de la tête de nettoyage (12) ;
    - la pédale (34) présente des parois latérales de bord (146) relevées.
  6. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un espace libre (102), au sein duquel le dispositif formant manche (36) est mobile lors d'un pivotement autour de l'axe de pivotement (40), est formé au niveau de la tête de nettoyage (12), et en particulier en ce qu'une pédale (34) est agencée au niveau de l'espace libre (102) ou dans le prolongement de l'espace libre (102).
  7. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée par au moins une des caractéristiques ci-dessous :
    - un moteur d'entraînement (98) destiné à l'unité de rouleau de nettoyage (18) est prévu, lequel est relié au dispositif formant manche (36) de manière solidaire en rotation par rapport à la possibilité de pivotement du dispositif formant manche (36) autour de l'axe de pivotement (40) ;
    - un dispositif d'engrenage (104) permettant de transmettre un couple d'un moteur d'entraînement (98) à la au moins une unité de rouleau de nettoyage (118) est prévu, le dispositif d'engrenage (104) étant relié au dispositif formant manche (36) de manière solidaire en rotation par rapport à la possibilité de pivotement du dispositif formant manche (36) autour de l'axe de pivotement (40) ;
    - un logement de rouleau (106) est prévu, au niveau duquel se situe la au moins une unité de rouleau de nettoyage (18), le logement de rouleau (106) étant relié au dispositif formant manche (36) de manière solidaire en rotation par rapport à la possibilité de pivotement du dispositif formant manche (36).
  8. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce que la au moins une unité de rouleau de nettoyage (18) se situe au niveau d'un logement de rouleau (106) et au niveau d'un arbre comprenant une première partie d'arbre (110), une partie médiane (114) et une seconde partie d'arbre (112), la partie médiane (114) étant située entre la première partie d'arbre (110) et la seconde partie d'arbre (112), et une première partie de rouleau (116) de la au moins une unité de rouleau de nettoyage (18) étant agencée au niveau de la première partie d'arbre (110) et une seconde partie de rouleau (118) de la au moins une unité de rouleau de nettoyage (18) étant agencée au niveau de la seconde partie d'arbre (112), et en ce qu'un entraînement central agissant sur la partie médiane (114) est prévu, et en ce que la partie médiane (114) est agencée par rapport à l'articulation de pivotement (84) de manière à être en alignement avec un axe longitudinal (24) de la tête de nettoyage (12).
  9. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif formant manche (36) présente une première partie (278) et une seconde partie (280), la première partie (278) étant articulée au niveau de la tête de nettoyage (12) et la seconde partie (280) peut tourner par rapport à la première partie (278) autour d'un axe de rotation (41), l'axe de rotation (41) étant en particulier orienté transversalement, et de manière préférée perpendiculairement, par rapport à l'axe de pivotement (40) de l'articulation de pivotement (84), et en particulier
    caractérisée par un dispositif de verrouillage (282) grâce auquel une possibilité de rotation autour de l'axe de rotation (41) peut être verrouillée, en particulier présentant au moins une des caractéristiques ci-dessous :
    - dans une position de stationnement (185), pouvant être bloquée, du dispositif formant manche (36) par rapport à la tête de nettoyage (12), le dispositif de verrouillage (182) agit et se trouve en particulier dans une position de verrouillage (284) ;
    - en dehors de la position de stationnement (185) bloquée, le dispositif de verrouillage (282) autorise la possibilité de rotation ;
    - le dispositif de verrouillage (282) passe automatiquement dans une position de verrouillage (284) lorsque la position de stationnement (185) est atteinte ;
    - le dispositif de verrouillage (282) sort automatiquement de sa position de verrouillage (284) lorsque la position de stationnement (185) est annulée.
  10. Machine de nettoyage de sol selon la revendication 9, caractérisée en ce que le dispositif de verrouillage (282) comprend un coulisseau mobile (288) sur ressort, qui est monté de manière coulissante au niveau de la première partie (278) et qui, dans une position de verrouillage (284), assure un verrouillage par complémentarité de forme avec la seconde partie (280), en particulier présentant au moins une des caractéristiques ci-dessous :
    - le coulisseau (288) présente un ergot (290) qui s'appuie sur la tête de nettoyage (12) dans la position de verrouillage (284) et qui retient le coulisseau (288) dans la position de verrouillage (284) ou le place dans la position de verrouillage (284) ;
    - le coulisseau (288) présente une protection contre les surcharges ;
    - le coulisseau (288) présente au moins une première partie (302) et une seconde partie (304), la seconde partie (304) agissant sur la seconde partie (280) du dispositif formant manche (36), et la seconde partie (304) étant agencée de manière mobile sur la première partie (302) en étant soumis à l'action d'un ressort.
  11. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif formant manche (36) présente une première région (76) avec un premier axe longitudinal (80) et présente une seconde région (78) avec un second axe longitudinal (42), le premier axe longitudinal (80) et le second axe longitudinal (42) étant orientés l'un par rapport à l'autre selon un angle obtus (82), l'angle obtus (82) se situant en particulier dans la plage comprise entre 120° et 170°, en particulier caractérisée par au moins une des caractéristiques ci-dessous :
    - la seconde région (78) est située au niveau de la première région (76) ;
    - la première région (76) est ou comprend une région distale du dispositif formant manche (36) ;
    - le dispositif formant manche (36) est articulé au niveau de la tête de nettoyage (12) par l'intermédiaire de la première région (76) ;
    - un dispositif homologue (90) de l'articulation de pivotement (84) est agencé au niveau de la première région (76) ;
    - un moteur d'entraînement (98) destiné à la au moins une unité de rouleau de nettoyage (18) est agencé au niveau de la première région (76) ;
    - la première région (76) présente une enveloppe (100) ;
    - un support de batterie est agencé au niveau de la première région (76) ;
    - un dispositif formant réservoir, en particulier amovible, destiné à du liquide de nettoyage est agencé au niveau de la première région (76) ;
    - la seconde région (78) est ou comprend une région proximale du dispositif formant manche (36) ;
    - une poignée (38) est agencée au niveau de la seconde région (78) ;
    - un dispositif formant réservoir (50), en particulier amovible, destiné à du liquide de nettoyage est agencé au niveau de la seconde région (78) ;
    - un support de batterie (48) est agencé au niveau de la seconde région (78) ;
    - un panneau de commande est agencé au niveau de la seconde région (78) ou au niveau d'une poignée (38) qui se situe au niveau de la seconde région (78) ;
    - la seconde région (78) présente une extension droite dans le second axe longitudinal (42).
  12. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif formant manche (36) présente, par l'intermédiaire de l'articulation de pivotement (84), une plage angulaire de pivotement libre par rapport à la tête de nettoyage (12), avec un angle de pivotement (182) compris entre un axe longitudinal (42) du dispositif formant manche (36) et une surface de mise en place (14) de la tête de nettoyage (12) sur un sol à nettoyer (16), ledit angle de pivotement se situant dans la plage comprise entre une limite inférieure et une limite supérieure, en particulier présentant une des caractéristiques ci-dessous :
    - la limite inférieure est de 0° ou est supérieure à 0° ;
    - la limite inférieure est inférieure à 50° et en particulier inférieure à 40° et en particulier inférieure à 30° et de manière préférée inférieure à 20° ;
    - la limite supérieure est située dans la plage comprise entre 80° et 120° et est en particulier d'environ 90° ;
    - à la limite supérieure, le dispositif formant manche (36) présente une position de stationnement (185) verrouillable par rapport à la tête de nettoyage (12) ;
  13. Machine de nettoyage de sol selon la revendication 12, caractérisée par un dispositif de verrouillage (186) qui verrouille le dispositif formant manche (36) avec la tête de nettoyage (12) à la limite supérieure, de sorte que la possibilité de pivotement du dispositif formant manche (36) par rapport à la tête de nettoyage (12) est bloquée, caractérisée par au moins une des caractéristiques ci-dessous :
    - une poursuite du pivotement du dispositif formant manche (36), lorsque ledit dispositif formant manche se situe à la limite supérieure et est verrouillé avec la tête de nettoyage (12), et lorsque la tête de nettoyage (12) est correctement placée sur un sol à nettoyer (16), entraîne, sans intervention supplémentaire de l'utilisateur en cas d'augmentation de l'angle de pivotement, un pivotement de la tête de nettoyage (12) par rapport au sol à nettoyer (16) ;
    - le dispositif de verrouillage (186) comprend au moins une goupille (196 ; 196') soumise à l'action d'un ressort et un orifice d'insertion (194) associé destiné à la goupille (196 ; 196'), (i) la au moins une goupille (196 ; 196') étant agencée de manière solidaire en rotation au niveau du dispositif formant manche (36) et l'orifice d'insertion (184) associé étant agencé de manière solidaire en rotation au niveau de la tête de nettoyage (12), ou (ii) la au moins une goupille étant agencée de manière solidaire en rotation au niveau de la tête de nettoyage (12) et l'orifice d'insertion associé étant agencé de manière solidaire en rotation au niveau du dispositif formant manche (36).
  14. Machine de nettoyage de sol selon la revendication 13, caractérisée par au moins une des caractéristiques ci-dessous :
    - l'orifice d'insertion (194) est associé, à l'extérieur de l'orifice d'insertion (194), à un premier plan incliné (210) qui, lorsque l'angle de pivotement (182) augmente, guide la goupille (196 ; 196') associée dans l'orifice d'insertion (184), le premier plan incliné (210) provoquant un coulissement de la goupille (196 ; 196') à l'encontre d'une application de force due à l'action du ressort ;
    - la au moins une goupille (196 ; 196') présente une première surface d'installation (212) adaptée au premier plan incliné (210) ;
    - l'orifice d'insertion (184) est délimité par une paroi qui présente un second plan incliné (214) et par l'intermédiaire de laquelle la goupille (196 ; 196') associée est déplacée hors de l'orifice d'insertion (184) lorsque l'angle de pivotement est diminué, le second plan incliné (214) provoquant un coulissement de la goupille (196, 196') à l'encontre d'une application de force due à l'action du ressort ;
    - la au moins une goupille (196, 196') présente une seconde surface d'installation (216) adaptée au second plan incliné (214).
  15. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un dispositif formant réservoir de fluide sale (32) amovible est agencé au niveau de la tête de nettoyage (12), présentant au moins une des caractéristiques ci-dessous :
    - une pédale (34) est agencée au niveau du dispositif formant réservoir de fluide sale (32) ;
    - au moins un élément de raclage (70) est agencé au niveau de la tête de nettoyage (12), lequel élément de raclage agit sur la au moins une unité de rouleau de nettoyage (18) et sert à racler le fluide sale sur la au moins une unité de rouleau de nettoyage (18) ;
    - le au moins un élément de raclage (70) plonge dans un matériau actif de la au moins une unité de rouleau de nettoyage (18) ;
    - du fluide sale est transporté directement depuis la au moins une unité de rouleau de nettoyage (18) jusque dans le dispositif formant réservoir de fluide sale (34) sans utiliser de dispositif d'aspiration ;
    - le dispositif formant manche (36) est conçu pour un utilisateur debout qui se tient debout sur le sol à nettoyer (16), la tête de nettoyage (12) étant placée sur le sol à nettoyer (16) par l'intermédiaire d'une surface de mise en place (14) et la machine de nettoyage de sol peut être guidée au-dessus du sol à nettoyer (16) par l'intermédiaire du dispositif formant manche ;
    - la au moins une unité de rouleau de nettoyage (18) est entraînée de manière motorisée par un moteur d'entraînement (98) ;
    - la tête de nettoyage (12) présente une enveloppe au sein de laquelle est agencée au moins partiellement la au moins une unité de rouleau de nettoyage (18) ;
    - les extrémités extérieures de la au moins une unité de rouleau de nettoyage (18) se situent respectivement au niveau d'un premier côté latéral (26) et d'un second côté latéral (28) de la tête de nettoyage (12).
  16. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce que la tête de nettoyage (12) présente au moins un élément d'appui (120) par l'intermédiaire duquel la tête de nettoyage (12) s'appuie sur un sol à nettoyer (16) en étant à distance de la au moins une unité de rouleau de nettoyage (18), le au moins un élément d'appui (120) étant relié de manière fixe à la tête de nettoyage (12) de telle manière que, lors du retrait d'un dispositif formant réservoir de fluide sale (34) de la tête de nettoyage (12), le au moins un élément d'appui (120) restant au niveau de la tête de nettoyage (12), et en particulier caractérisée en ce que le au moins un élément d'appui (120) est orienté par rapport au palier de pivotement (84) de manière à être en alignement avec un axe longitudinal (24) de la tête de nettoyage (12).
  17. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée par au moins une des caractéristiques ci-dessous :
    - (i) au moins un élément de raclage (70) destiné à la au moins une unité de rouleau de nettoyage (18) est agencé au niveau de la tête de nettoyage (12) ;
    - (ii) au moins un élément de peignage (232) agissant sur la au moins une unité de rouleau de nettoyage (18) est agencé au niveau de la tête de nettoyage (12) ;
    - (iii) au moins un élément de balayage (62) alimentant en balayures la au moins une unité de rouleau de nettoyage (18) est associé à la tête de nettoyage (12), le au moins un élément de balayage (62) étant en particulier agencé au niveau d'un dispositif formant réservoir de fluide sale (34),
    dans laquelle une quelconque des caractéristiques (i), (ii), (iii) ou une combinaison quelconque des éléments (70, 232, 62) présente par rapport à la au moins une unité de rouleau de nettoyage (18) la même position indépendamment d'une position de pivotement du dispositif formant manche (34) par rapport à la tête de nettoyage (12).
  18. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée en ce que la tête de nettoyage (12) présente une surface de mise en place (14) destinée à un sol à nettoyer (16), qui est en particulier une surface plane, et un plan horizontal parallèle à la surface de mise en place (14) est associé à la tête de nettoyage (12), et en ce que, lorsque la machine de nettoyage de sol est utilisée correctement, le plan horizontal de la tête de nettoyage (12) est toujours dans la même position par rapport à la surface de mise en place (14), indépendamment d'une position de pivotement du dispositif formant manche (36) par rapport à la tête de nettoyage (12).
  19. Machine de nettoyage de sol selon l'une quelconque des revendications précédentes, caractérisée par au moins un des modes de fonctionnement ci-dessous :
    - un fonctionnement en balayage à sec sans application de liquide de nettoyage sur le sol à nettoyer (16) ou sur la au moins une unité de rouleau de nettoyage (18) ;
    - un fonctionnement en essuyage humide avec application de liquide de nettoyage sur le sol à nettoyer (16) et/ou sur la au moins une unité de rouleau de nettoyage (18) ;
    - un fonctionnement en balayage et un fonctionnement en essuyage humide, des saletés grossières étant acheminées jusqu'à la au moins une unité de rouleau de nettoyage (18) en particulier par l'intermédiaire d'un élément de balayage (62) et étant transportées jusque dans un dispositif formant réservoir de fluide sale (34) par l'intermédiaire de la au moins une unité de rouleau de nettoyage (18) et du fluide sale étant éliminé par raclage de la au moins une unité de rouleau de nettoyage (18) par l'intermédiaire d'au moins un élément de raclage (70) et à partir de là étant transporté dans le dispositif formant réservoir de fluide sale (34).
  20. Procédé de fonctionnement d'une machine de nettoyage de sol selon l'une quelconque des revendications précédentes, dans lequel, lors d'une opération de nettoyage, le dispositif formant manche (36) est pivoté par rapport à la tête de nettoyage (12) et dans lequel une force gravitaire du dispositif formant manche (36) agit directement sur la au moins une unité de rouleau de nettoyage (18) indépendamment d'une position de pivotement du dispositif formant manche (36).
  21. Procédé selon la revendication 20, caractérisé en ce que, lors d'un pivotement du dispositif formant manche (36) par rapport à la tête de nettoyage (12), la au moins une unité de rouleau de nettoyage (18) roule sur un sol à nettoyer (16) sur lequel est placée la au moins une unité de rouleau de nettoyage (18).
EP22213551.9A 2021-12-23 2022-12-14 Machine de nettoyage de sol dotée d'une articulation pivotante et procédé de fonctionnement d'une machine de nettoyage de sol Active EP4201285B1 (fr)

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