EP4014826B1 - Appareil de nettoyage du sol - Google Patents

Appareil de nettoyage du sol Download PDF

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Publication number
EP4014826B1
EP4014826B1 EP21211219.7A EP21211219A EP4014826B1 EP 4014826 B1 EP4014826 B1 EP 4014826B1 EP 21211219 A EP21211219 A EP 21211219A EP 4014826 B1 EP4014826 B1 EP 4014826B1
Authority
EP
European Patent Office
Prior art keywords
deflection means
cleaning
cleaning device
floor
floor cleaning
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
EP21211219.7A
Other languages
German (de)
English (en)
Other versions
EP4014826C0 (fr
EP4014826A1 (fr
Inventor
Philipp Rath
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.)
Wessel Werk GmbH
Original Assignee
Wessel Werk GmbH
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
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Publication of EP4014826A1 publication Critical patent/EP4014826A1/fr
Application granted granted Critical
Publication of EP4014826B1 publication Critical patent/EP4014826B1/fr
Publication of EP4014826C0 publication Critical patent/EP4014826C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • 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
    • A47L11/4047—Wound-up or endless cleaning belts
    • 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
    • A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
    • A47L11/201—Floor surfacing or polishing machines combined with vacuum cleaning devices with supply of cleaning agents
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0494—Height adjustment of dust-loosening 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
    • 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 device with a housing which extends in a working direction, in a transverse direction and in a vertical direction.
  • a cleaning space is arranged in the housing, which is accessible through a cleaning opening on the bottom (in the vertical direction).
  • Floor cleaning devices are placed on a floor surface and are used to loosen and remove dirt particles that adhere to and/or are embedded in it.
  • various cleaning elements are known from the prior art with which this purpose can be achieved or supported.
  • brush plates come into consideration here, which rotate about a vertical axis and are used in particular to feed dirt particles to a central collection point.
  • Arrangements with cleaning rollers which are rotatably mounted about horizontal axes are also known. Due to a relative speed between the peripheral surface of the cleaning rollers and the surface to be cleaned, dirt particles can be detached from it and, if necessary, transported away.
  • the cleaning rollers can also serve, in particular, to deliver the loosened dirt particles to a collection point and, most preferably, to sweep or shovel them into the interior of the housing.
  • cleaning rollers can be provided with special surfaces.
  • bristle fittings, foamed surfaces and/or textile covers come into consideration here.
  • a floor cleaning device in which a front deflection means and a rear deflection means spaced apart from the front deflection means in the working direction are arranged in the cleaning space.
  • the invention is based on the object of providing an improved floor cleaning device with which the previous disadvantages are overcome.
  • the subject of the invention and solution to this problem is a floor cleaning device according to claim 1.
  • Preferred embodiments are specified in the subclaims.
  • a front deflection means and a rear deflection means spaced apart from the front deflection means in the working direction are arranged in the cleaning space.
  • a flexible cleaning agent is guided on the front deflection means and the rear deflection means.
  • This flexible cleaning agent can work together with the front deflection means and the rear deflection means provide a particularly large contact surface at which it comes into contact with the floor surface to be cleaned. This large contact surface makes it possible to achieve a particularly good cleaning effect even with low contact pressure.
  • this design also has the advantage that a particularly low overall height (in the vertical direction) can be achieved.
  • the front deflection means is designed as a front cleaning roller which is rotatably mounted about a first axis of rotation running in the transverse direction.
  • the first cleaning roller forms a first outer surface that is essentially in the shape of a cylinder jacket and against which the flexible cleaning agent rests.
  • the front cleaning roller also serves as a deflection device. It also applies force to the cleaning agent from the top in order to press it against a floor surface to be cleaned if necessary.
  • the radius of the front cleaning roller can be adapted in particular to the space available within the floor cleaning device.
  • this radius is chosen to be as large as possible within the existing space available in order, on the one hand, to provide a larger pressing surface and, on the other hand, to only curve the flexible cleaning agent to a small extent, i.e. H. especially not to bend or break.
  • the rear deflection means is designed as a rear cleaning roller which is rotatably mounted about a second axis of rotation running in the transverse direction.
  • the same considerations as for the front cleaning roller come into play here.
  • the front cleaning roller and/or the rear cleaning roller particularly preferably have a diameter between 1.5 cm and 6 cm.
  • the radius of curvature is chosen to be large enough so as not to damage the flexible cleaning agent.
  • a handy and space-saving structure can be guaranteed in this value range.
  • cleaning rollers of this size are suitable for installation in standard household floor cleaning devices.
  • the front cleaning roller and/or the rear cleaning roller preferably has a width measured in the transverse direction, which accounts for at least 75%, preferably at least 90%, in particular at least 95% of the housing width. Essentially the entire width of the housing can be used for cleaning with the flexible cleaning agent.
  • the front cleaning roller and/or the rear cleaning roller have a width of at least 20 cm, preferably at least 30 cm.
  • the front deflection means and/or the rear deflection means can also be made of non-rotatable parts - in particular as deflection rods running in the transverse direction or as guide surfaces.
  • a corresponding guide surface can also be designed with a rounded, in particular circular-arc-shaped, longitudinal section, i.e. perpendicular to the transverse direction.
  • the front cleaning roller and/or the rear cleaning roller are rotatably driven.
  • This allows the flexible cleaning agent to be set in motion (relative to the housing and/or the floor surface to be cleaned).
  • an electric motor is provided in or on the housing for this purpose, which is coupled to the front cleaning roller and/or the rear cleaning roller.
  • Cleaning rollers can be equipped on their outer surface with a driver profile, which is arranged in an associated profile on the back of the cleaning agent facing the cleaning rollers.
  • the electric motor(s) can be connected to the first cleaning roller and/or second cleaning roller by a belt drive and/or a gear transmission.
  • the electric motor can also be arranged inside the front cleaning roller or the rear cleaning roller.
  • the cleaning rollers can also be driven via alternative forms of drive - for example via air flow turbines.
  • the cleaning agent is wound on the front cleaning roller and/or the rear cleaning roller.
  • the cleaning agent is guided around at least one of the two cleaning rollers in several full revolutions and extends from there to the other cleaning roller.
  • the wound layers of the cleaning agent also serve as a "stock" of unused or clean material of the cleaning agent or, on the other hand, used or contaminated material of the cleaning agent.
  • An alternative preferred embodiment of the invention provides that the flexible cleaning agent is guided endlessly around the front deflection means (in particular the front cleaning roller) and the rear deflection means (in particular the rear cleaning roller). This makes it possible to move the flexible cleaning agent indefinitely in the same direction if necessary. There is also no need for complex coordination of movements of the two rollers in contrast to a variant in which the cleaning agent is rewound from the front cleaning roller to the rear cleaning roller.
  • Combinations are also conceivable in which a flexible support band is guided endlessly around the front deflection means and the rear deflection means.
  • the flexible cleaning agent can then be supported on the underside of the support band.
  • the flexible cleaning agent can be wound up or unwound independently of the front deflection means and the rear deflection means.
  • the flexible cleaning agent is particularly preferably designed as a cleaning tape.
  • the cleaning belt is particularly flat. This means that its width - running in the transverse direction - and its longitudinal extent are a factor of 10 larger than the extent in the thickness direction.
  • the cleaning belt particularly preferably has a flexible carrier and at least one cleaning device.
  • the carrier determines the shape of the cleaning belt and is guided on the front deflection means and the rear deflection means.
  • the cleaning device is intended in particular to loosen dirt particles present on or in the floor surface to be cleaned and, if necessary, to transport them away.
  • the carrier and the cleaning device are particularly preferably connected to one another (in particular over the entire surface).
  • the carrier can in particular be made from a preferably elastomeric plastic - in particular natural rubber or a synthetic rubber such as styrene-butadiene rubber (SBR).
  • SBR styrene-butadiene rubber
  • such a plastic carrier can be additionally reinforced with fibers and/or provided with textile reinforcements.
  • the carrier preferably has at least one textile layer.
  • the carrier is formed entirely by the textile layer.
  • This textile layer can in particular have a woven or knitted structure. This has the particular advantage of high liquid and air permeability.
  • the textile layer can also simultaneously form at least part of the cleaning device.
  • additional fibers can also be braided or knitted or worked into the textile layer.
  • a suitable cleaning device is in particular a fiber structure arranged on the surface of the carrier facing the floor surface to be cleaned.
  • the fiber structure can in particular be designed as a fiber web with free fiber ends and/or meshes projecting in the direction of the floor surface to be cleaned.
  • the fiber structure fulfills the function of a mop or wiping cloth, which enables wet and/or dry cleaning of the floor surface.
  • the fiber structure has, in particular, crimped fibers and/or microtexturing of the fibers (so-called microfibers).
  • the fiber structure has a mixture of different fiber types - in terms of fineness, texturing and / or structuring.
  • the floor cleaning device is designed as a suction cleaning device.
  • the cleaning room is connected or can be connected to a suction air duct.
  • the suction air guide of the suction cleaning device is provided with a fan for generating a suction air stream and also has a separating device for separating dirt particles carried in the suction air stream.
  • a liquid separator can also be arranged within the suction air guide - preferably in the separating device.
  • the cleaning effect - supported by the flexible cleaning agent - is additionally expanded to include a suction cleaning component.
  • the dirt particles released by the cleaning agent are removed with the suction air flow and collected in the separator devices.
  • dirt particles picked up in the flexible cleaning agent are preferably removed again by the suction air flow, so that the cleaning effect of the cleaning agent is improved.
  • the suction air guide is connected directly to the cleaning room.
  • the cleaning room thus fulfills the function of a suction channel (in particular a vacuum cleaner floor nozzle).
  • the bottom - preferably - further single opening (the bottom cleaning opening) thus forms a so-called suction mouth.
  • the suction air guide is connected directly to the flexible cleaning agent with a suction line. This allows the suction effect (of dirt particles and, if necessary, moisture) to be further strengthened and concentrated.
  • the suction cleaning device is designed as a vacuum cleaner nozzle for a vacuum cleaner.
  • the fan for generating the suction air flow and the separator device are arranged in a separate vacuum cleaner housing (so-called canister cleaner). This is connected to the vacuum cleaner floor nozzle via a suction line.
  • the suction line can in particular have a suction hose and/or a suction pipe.
  • the suction cleaning device is designed as a base part, also as an "attachment" of an upright vacuum cleaner.
  • the base part is directly connected to the vacuum cleaner housing or can be formed integrally with it.
  • the suction cleaning device is designed as a vacuum cleaner robot or as an assembly of a vacuum cleaner robot.
  • Vacuum cleaner robots in particular benefit from the additional cleaning effect and the very small vertical space requirement of the flexible cleaning agent.
  • vacuum cleaner robots cannot regularly generate large suction air flows over long periods of time. Therefore, vacuum cleaner robots usually increasingly use additional collecting brushes and bristle rollers.
  • this approach is additionally expanded to include the concept of a flexible cleaning agent, which offers a large area-wide cleaning effect with very little risk of damage to the floor surface.
  • the cleaning effect - in relation to the energy used - can be improved if the actual cleaning is achieved by the flexible cleaning element and the suction power is predominantly, essentially or in particular completely concentrated on the suction of the flexible cleaning agent.
  • the front deflection means and/or the rear deflection means is designed to be height-adjustable.
  • the height of the deflection means or means it can be determined whether and, if necessary, with what contact force or pressure the flexible cleaning agent comes into contact with the floor on a floor surface to be cleaned. Mobility in the vertical direction can also be used to avoid coarse dirt particles and/or obstacles lying on the floor surface to be cleaned in the height direction (vertical direction).
  • the first deflection means and/or the second deflection means can be fixed in discrete height positions. Different cleaning states can be achieved in a targeted manner during operation.
  • At least the front deflection means or the rear deflection means is arranged in a first height position such that the flexible cleaning agent - in the area of the respective deflection means - is held above a support level of the floor cleaning device.
  • the cleaning agent - at least in this area - has no contact with the ground during the cleaning operation.
  • a corresponding setting can be selected, for example, if no cleaning operation with the flexible cleaning agent is desired - for example, to avoid wet wiping of sensitive wooden floors.
  • the flexible cleaning agent has contact with the ground in a second area - in particular in the area of the other front or rear deflection means or in the area of a further deflection means. Then the raised first height position causes the flexible cleaning agent to form an inclined plane, which is particularly suitable for sliding on large dirt particles.
  • the front deflection means and/or the rear deflection means is arranged in a second height position such that the deflection means is arranged (preferably completely) above the support level of the floor cleaning device and the flexible cleaning means extends at least in the vertical direction up to the support level.
  • the flexible cleaning agent protrudes slightly in the vertical direction above the support plane - in particular by a value between 1 mm and 5 mm. In this height position, the front deflection means and the rear deflection means are located, in particular, completely above the support level.
  • the weight of the floor cleaning device is supported by other support means - for example support rollers - while the flexible cleaning agent - at least in the first area - rests essentially "force-free" on the floor surface to be cleaned.
  • the first deflection means and/or the second deflection means protrudes downwards in the vertical direction relative to the support plane of the floor cleaning device.
  • the weight of the floor cleaning device rests directly on the floor surface via the deflection means and the flexible cleaning agent. This allows for a particularly high contact pressure in order to be able to carry out particularly thorough cleaning if necessary.
  • the support level of the floor cleaning device is defined by the underside of the housing or the support elements arranged thereon. If the floor cleaning device is designed as an assembly of a larger component, these support elements can also be arranged in the surroundings of the housing. The support elements form the points that protrude furthest downwards in the vertical direction. These can be designed, for example, as parts of the housing, in particular the edges of the opening on the bottom - so-called suction mouth edges. The use of support rollers or support wheels or skids is also possible.
  • the support level of the floor cleaning device can also be designed to be variable - in particular by adjusting the support elements. If the floor cleaning device is placed effortlessly on a flat floor surface to be cleaned, the support level is aligned with the surface of this floor.
  • an electric motor-driven height adjustment is provided.
  • the front deflection means and/or the rear deflection means is coupled to an electric motor actuator.
  • This is preferably connected to a control unit which regulates actuation of the actuator.
  • the desired height position is set based on user input and/or based on measured parameters - such as the movement speed of the floor cleaning device or the contact pressure. Automatic detection of the floor covering is also possible.
  • one or more height positions can be achieved by a mechanical selection element, in particular a rotary selector switch or toggle switch.
  • the front deflection means and/or the rear deflection means are mounted so that they can move freely in the vertical direction in a first configuration (freewheel position) and/or at least in a first vertical region (freewheel region).
  • first deflection means or the second deflection means with the flexible cleaning agent guided thereon rests on a floor surface to be cleaned, in particular due to its own weight.
  • the free movement in the vertical direction enables quick and targeted adjustment to any uneven floors.
  • the front deflection means and/or the rear deflection means are prestressed, in particular spring-loaded, in a second configuration (spring position) and/or in at least a second vertical region (spring region).
  • the preload can be directed downwards in the vertical direction in order to increase the contact force in addition to the weight. It can also be provided that the preload force is directed upwards, so that the contact pressure is reduced compared to the own weight.
  • a first freewheel area Located on the top and/or bottom adjacent to the freewheel area, at least one preload area is provided, the preload force of which is directed in the direction of the freewheel area. This ensures a “soft” touch.
  • the freewheel area can be adjusted in particular by mechanical and/or electromechanical adjustment means. It is also conceivable that the spring force can be regulated within a spring position or a spring range by adjusting means.
  • the floor cleaning device can be switched between the first configuration, the second configuration and/or a locking of the front deflection means or the rear deflection means in a discrete vertical position by means of a selector switch.
  • the cleaning agent is coupled to a drive.
  • the drive can cause a relative movement between the cleaning agent and the floor surface to be cleaned in order to achieve a cleaning effect due to mechanical interaction.
  • a contaminated area of the cleaning agent can also be removed from the floor surface to be cleaned and then stored separately and/or reprocessed for reuse by cleaning.
  • the front deflection means - in particular the front cleaning roller -, the rear deflection means - in particular the rear cleaning roller - and / or an additional drive means are rotatably driven and mechanically coupled to the flexible cleaning agent.
  • At least one middle deflection means on which the cleaning agent is guided, is arranged between the front deflection means and the rear deflection means.
  • the middle deflection means can perform one or more functions: On the one hand, it is - in particular With an endlessly circulating flexible cleaning agent - it is possible to tension the cleaning agent through the middle deflection agent. The longitudinal tension of the flexible cleaning agent - particularly in the working direction - can be adjusted using a so-called band tensioner. Furthermore, it is possible to use the at least one central deflection means to press the flexible cleaning agent against a floor surface to be cleaned - regardless of whether there is ground contact in the area of the front deflection means and/or the rear deflection means.
  • the middle deflection means also acts as a pressure means.
  • the middle deflection means is designed as a middle cleaning roller, which is rotatably mounted in the cleaning space about a third axis of rotation running in the transverse direction.
  • This can in particular be a pressure roller and/or a tension roller.
  • the middle deflection means - in particular the middle cleaning roller - is guided in the cleaning space so as to be movable in the vertical direction.
  • the middle deflection means can fulfill its pressure and/or tensioning function through its own weight and/or mechanical preload (particularly spring loading).
  • the floor cleaning device has at least one dispensing device for a cleaning liquid.
  • the dispensing liquid comprises at least one metering and/or conveying unit with which the cleaning liquid can optionally be portioned and conveyed towards the floor surface to be cleaned.
  • a spray nozzle is preferably provided with which the cleaning liquid can be dispensed onto the floor surface to be cleaned and/or the flexible cleaning agent.
  • the cleaning agent is preferably delivered to the side of the flexible cleaning agent which comes into contact with the floor surface to be cleaned.
  • delivery can also take place on the rear side facing away.
  • a reservoir is preferably provided on the floor cleaning device and/or an adjacent assembly.
  • the reservoir is particularly preferably designed to be removable or replaceable.
  • the floor cleaning device particularly preferably has a liquid scraper device and/or a wringer device, with which excess cleaning liquid can be removed from the flexible cleaning agent.
  • the stripping device or the wringing device locally compresses the flexible cleaning agent - particularly when moving relative to the housing - so that the material of the flexible cleaning agent offers a lower absorption capacity for liquids.
  • the cleaning liquid is at least partially removed from the flexible cleaning agent, and in particular dirt particles carried in the cleaning liquid are also separated.
  • the stripping device or wringing device has at least one stripping edge, which is arranged adjacent to the front deflection means, the rear deflection means or a middle deflection means, so that a narrow gap remains between this deflection means and the stripping edge.
  • the scraper edge can in particular be designed as a rubber lip.
  • the stripping or wringing device has at least one compression roller which compresses the flexible cleaning agent relative to the front deflection means, the rear deflection means or a middle deflection means.
  • a pair of rollers can also be provided as a wringing device, which forms a roller gap through which the flexible cleaning agent is guided.
  • the pair of rollers is rotatably driven.
  • a drive for the flexible cleaning agent alone can be provided or, alternatively, the main drive of the flexible cleaning agent can be relieved.
  • the drive of the flexible cleaning agent and the pair of rollers are coupled to one another, preferably mechanically coupled to one another.
  • a collecting tray is preferably provided to remove the cleaning liquid, which is removed by the stripping device or the wringing device. This is particularly preferably connected to a suction air guide. Alternatively or additionally, a suction line for removing excess dirt and cleaning fluid can be arranged directly in the area of the stripping or wringing device.
  • the front deflection means, the rear deflection means and the flexible floor cleaning element guided thereon can be removed from the floor cleaning device. This makes replacement or external cleaning possible.
  • the invention also relates to a method for operating a previously described floor cleaning device.
  • This has at least one housing with a cleaning space arranged in the housing, which is provided by a Cleaning opening on the bottom is accessible.
  • a front deflection means and a rear deflection means spaced apart from the front deflection means in the working direction are arranged in the cleaning space.
  • a flexible cleaning agent is guided on the front deflection means and the rear deflection means.
  • the flexible cleaning agent is coupled to a drive which is designed to move the flexible cleaning agent relative to the housing.
  • the drive is preferably set up for continuous operation.
  • the flexible cleaning agent is set in a constant relative movement to the housing. This is particularly useful with an endlessly circulating cleaning agent.
  • the speed of movement and/or the direction of movement can be adjusted via a selection element, in particular a selector switch or an electronic control.
  • the flexible cleaning agent can be driven intermittently by the drive. Periods of time with relative movement and activated drive alternate with periods of time that do not provide for relative movement.
  • a movement phase in intermittent operation is dimensioned such that the flexible cleaning agent is transported further by at least a length which corresponds to the distance of the front deflection means to the rear deflection means in the working direction.
  • This allows - especially in solutions in which the flexible cleaning agent is unwound from a supply and wound onto a storage spool - a complete The material of the flexible cleaning agent facing the floor surface to be cleaned is replaced.
  • the triggering of an active phase in intermittent operation can be done manually - i.e. H. by user influence -, time-controlled in fixed cycles and/or sensor-controlled.
  • Relevant sensors include, in particular, motion sensors, pollution sensors and moisture sensors.
  • the Fig. 1 shows a longitudinal section perpendicular to a transverse direction x through a floor cleaning device 1 according to the invention.
  • the floor cleaning device 1 is designed as a suction cleaning device in the form of a vacuum cleaner floor nozzle with a housing 2, at the rear end of which a suction connection piece S is arranged in a working direction y.
  • the suction connection piece is mounted on the housing 2 so that it can pivot about a tilting axis k running in the transverse direction x and can be connected to a suction air guide.
  • the suction air guide can in particular contain a suction pipe, a suction hose and/or a vacuum cleaner housing.
  • the vacuum cleaner nozzle 1 shown can also be used as a cleaning attachment of an upright vacuum cleaner.
  • the housing 2 extends in the working direction y, the transverse direction x and perpendicular to the working direction y and the transverse direction x
  • a cleaning space 3 arranged in the housing 2, which is accessible through a cleaning opening 4 on the bottom in the vertical direction z.
  • a front deflection means 5 and a rear deflection means 6 spaced apart from the front deflection means 5 in the working direction y are arranged in the cleaning room 3.
  • the front deflection means 5 is designed as a front cleaning roller, which is rotatably held in the housing 2 about a first axis a 1 running in the transverse direction x.
  • the rear deflection means 6 is designed as a rear cleaning roller, which is rotatable in the housing about a second axis a 2 which also runs in the transverse direction x.
  • an electric motor 8 is provided, which is coupled to the front cleaning roller 5 by a belt drive 8a.
  • the electric motor 8 is supplied via an energy storage unit 9 arranged in the housing 2 in the form of an accumulator and controlled by a control unit 10.
  • the energy supply can also take place externally - i.e. in particular through an additional energy storage device, for example arranged on the suction pipe and/or the suction cleaning device.
  • the housing 2 is supported on a floor surface 11 to be cleaned by rear rollers 12a and front rollers 12b.
  • the axes of rotation a 1 and a 2 of the front cleaning roller 5 and the rear cleaning roller 6 are arranged so that the flexible cleaning agent 7 rests on the floor surface 11 to be cleaned.
  • the guidance according to the invention on a front deflection means 5 and a rear deflection means 6 creates a particularly large contact surface, the size of which depends on the width of the flexible cleaning means 7 in the transverse direction x and the distance A between the first axis of rotation a 1 and the second axis of rotation a 2 in depends on the working direction y.
  • the height of the required abdominal space is largely determined by the first diameter d 1 of the front deflection means 5 and the second
  • Diameter d 2 of the rear deflection means 6 is determined.
  • the floor cleaning device 1 also has a dispensing device 13 for a cleaning liquid.
  • the cleaning liquid is stored in a removable reservoir 14 in the housing 2.
  • the dispensing device includes a spray nozzle and a feed pump for metered dispensing of the cleaning liquid.
  • the nozzle of the dispensing device 13 is aligned so that an emerging mist of cleaning liquid hits the floor surface 11 to be cleaned.
  • the cleaning liquid serves to loosen dirt particles on the surface of the floor area 11 to be cleaned and to bind them in the liquid for removal.
  • the delivery device 13 is also controlled by the control module 10.
  • FIG. 2 an alternative embodiment of a floor cleaning device 1 'according to the invention in the form of a vacuum cleaner robot is shown in a longitudinal central section.
  • This comprises a housing 2', which is provided with rear drive wheels 12a' in the working direction y and a pivotable front support wheel 12b'.
  • a cleaning space 3' which is open on the underside and has a flexible cleaning agent 7' with a guide through a front deflection means 5' and a rear deflection means 6', is formed as an assembly in the housing 2'.
  • a suction line is integrated into the housing 2 'of the vacuum cleaner robot, which has a dirt collecting container 15, a filter element 16 and a suction air line 17 with a fan 18 arranged therein.
  • Both the fan 18 and a drive motor 8' coupled to the rear deflection means 6' are supplied by an energy storage device 9'. Furthermore, a wiper lip 19 is arranged in the cleaning room 3 ', which wipes off moisture components - in particular a cleaning liquid - carried in the flexible cleaning agent 7 ', so that they are recorded in the collecting space 15.
  • the flexible cleaning agent 7 is designed as an endlessly rotating cleaning belt which is stretched between the front cleaning roller 5 and the rear cleaning roller 6.
  • the endlessly rotating cleaning belt 7 has a carrier layer 7a made of a synthetic rubber material and a textile cleaning layer 7b (cleaning device) attached thereto. From the cleaning layer 7b there is a fiber web 7c on the side facing away from the deflection means 5, 6
  • the two deflection means 5, 6 designed as cleaning rollers can both be driven at the same time. Also is - in the Fig. 1 or 2 shown - only one of the two rollers can be driven.
  • Fig. 3B an alternative embodiment of the flexible cleaning agent 7" is shown in simplified form. A detailed representation of several layers was omitted, but this is also possible within the scope of this embodiment.
  • the flexible cleaning agent 7" is wound in multiple layers on both the front deflection means 5 and the rear deflection means 6. By rotating both deflection means 5, 6, on the one hand, a relative movement of the cleaning agent 7" can be produced in relation to the housing 2, 2 ', to achieve a mechanical cleaning effect.
  • FIG. 3C Another preferred embodiment is in the Fig. 3C shown.
  • a support band 20 is guided endlessly between the front deflection means 5 and the rear deflection means 6.
  • An alternative flexible cleaning element 7′′′ is guided along the outside of this support band.
  • the alternative cleaning element can be unwound from a supply spool 7a′′′ and wound onto a depot spool 7b′′′.
  • the flexible cleaning agent 7′′′ it is not necessary for the flexible cleaning agent 7′′′ to have a particularly high mechanical stability.
  • the essential forces are absorbed via the support band 20.
  • the deflection means 5 or 6 is not limited to the cleaning rollers shown in the above figures. It is also possible, for example, as in Fig. 3D shown as a rear deflection means to provide a driven cleaning roller 6 'around which the flexible cleaning agent 7 ⁇ designed as an endless cleaning belt is guided. A deflection rod 5' which is immovably mounted on the housing 2 is provided as the front deflection means 5".
  • the invention particularly also includes variants in which the flexible cleaning agent 7, 7', 7", 7 ⁇ (in particular together with the deflection means 5, 6, 5', 6') is designed to be removable from the housing 2 or 2'.
  • a quick exchange for unused or undamaged cleaning agent 7, 7', 7", 7" can be carried out.
  • Such a change is particularly preferably provided as part of a cartridge system.
  • a height adjustment of at least one of the two deflection means 5, 6 is also provided.
  • the figures again show an exemplary embodiment in which the flexible cleaning agent 7 is guided endlessly around a front cleaning roller 5 and a rear cleaning roller 6. These each have a first axis of rotation a 1 or a second axis of rotation a 2 , which are aligned in the transverse direction x are.
  • a mechanical selector switch 21 is provided on the housing 2, which can be moved between different discrete positioning positions.
  • the Fig. 4A shows a first position in which both the first axis of rotation a 1 and the second axis of rotation a 2 are lowered to the maximum.
  • the two deflection means 5, 6 protrude from the underside of the housing 2, so that the ground contact of the floor cleaning device 1, 1 'is effected almost exclusively via the flexible cleaning agent 7, which rests on the floor surface 11 to be cleaned.
  • a front support element 12b and a rear support element 12a have no contact with the ground in this position and do not contribute to the support.
  • a second position is shown, in which the underside of the flexible cleaning agent 7 is aligned with the support plane formed by the front support element 12b and the rear support element 12a.
  • the cleaning agent 7 has contact with the floor, but does not have to exclusively support the weight of the floor cleaning device 1,1 '.
  • the flexible cleaning agent 7 can also rest “without force” on the floor surface 11 to be cleaned.
  • the ones in the Fig. 4C shows a configuration in which the two deflection means 5, 6 are raised such that the flexible cleaning agent 7 has no contact with the ground.
  • This position can be selected by the user if no cleaning contribution from the flexible cleaning agent 7 is possible or desired. This can be the case with carpets, for example.
  • Both the front axis of rotation a 1 and the rear axis of rotation a 2 are each accommodated in a vertically extending guide 22.
  • the vertical position of the two deflection means 5, 6 can be adjusted discretely between the three positions shown.
  • the rotation axes a 1 , a 2 are each locked in these height settings.
  • the alternative guide 22 ' has a sliding block 23, which is received by the alternative guide 22'.
  • the sliding block 23 is mechanically coupled to a rotation axis (eg a 1 , a 2 ).
  • the sliding block 23 can be freely moved in a first area II (freewheel area).
  • the deflection means coupled to the axis of rotation or the flexible cleaning agent guided thereon is moved downwards under its own weight and, if necessary, rests on a surface to be cleaned.
  • a first spring region I and a second spring region III are provided at the vertical ends.
  • a spring element 24 is arranged in each of these, which generates a spring force in the direction of the central freewheel area II when it comes into contact with the sliding block 23.
  • a middle deflection means 25 is arranged between the front deflection means 5 and the rear deflection means 6.
  • the deflection means 25 can, on the one hand, be designed as a pressing means, which establishes or locally reinforces the contact between the front deflection means 5 and the rear deflection means 6 with a floor surface 11 to be cleaned.
  • the middle deflection means 25 ' can also be designed as a band tensioner, which keeps the flexible cleaning agent 7 under a required longitudinal tension.
  • Drainage mechanisms can also be designed to remove excess liquid that is carried in the flexible cleaning agent 7.
  • FIG. 6A is - in accordance with Fig. 1 a pair of rollers 26a, 26b are formed, through whose roller gap the flexible cleaning agent 7 is guided. The flexible cleaning agent 7 is compressed in the nip so that excess liquid comes out and drips off.
  • a collecting tray 27 is particularly preferably designed. To empty the collecting tray 27, it can particularly preferably be fluidically connected to the suction connection piece 3 via a suction line 28a. As a result, the collected liquid is sucked in and removed with the suction air flow.
  • suction nozzles 28b can also be formed in the area of the pair of rollers 26a, 26b, which are coupled directly to the suction channel 3.
  • a wiping lip 19 or a wiping element can be provided, which causes the required thickness compression of the flexible cleaning agent 7 by applying pressure against a deflection means 5, 6.
  • stripping nozzles 28b' can preferably be provided in order to collect the escaping liquid.
  • Such targeted suction is particularly necessary when - as with a vacuum cleaner robot - only relatively low suction power is available.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)

Claims (19)

  1. Dispositif de nettoyage des sols (1, 1'), pourvu d'un corps (2), lequel s'étend dans une direction de travail (y), dans une direction transversale (x) et dans une direction verticale (z) et pourvu d'un espace de nettoyage (3) placé dans le corps (2), lequel est accessible via une ouverture de nettoyage (4) sur la face inférieure, dans l'espace de nettoyage (3) étant placés un moyen de renvoi (5) antérieur et un moyen de renvoi (6) postérieur, écarté par rapport au moyen de renvoi (5) antérieur, dans la direction de travail (y) et sur le moyen de renvoi (5) antérieur et le moyen de renvoi (6) postérieur étant guidé un moyen de nettoyage (7) souple, caractérisé en ce que le moyen de renvoi (5) antérieur et / ou le moyen de renvoi (6) postérieur est ajustable en hauteur.
  2. Dispositif de nettoyage des sols (1, 1') selon la revendication 1, caractérisé en ce que le moyen de renvoi (5) antérieur est conçu sous la forme d'un cylindre de nettoyage antérieur, logé de manière mobile en rotation autour d'un premier axe de rotation (a1) s'écoulant dans la direction transversale (x).
  3. Dispositif de nettoyage des sols (1, 1') selon la revendication 1 ou 2, caractérisé en ce que le moyen de renvoi (6) postérieur est conçu sous la forme d'un cylindre de nettoyage postérieur, logé de manière mobile en rotation autour d'un deuxième axe de rotation (a2) s'écoulant dans la direction transversale (x).
  4. Dispositif de nettoyage des sols (1, 1') selon la revendication 2 et 3, caractérisé en ce que le cylindre de nettoyage (6) postérieur et / ou le cylindre de nettoyage (5) antérieur est entraîné en rotation.
  5. Dispositif de nettoyage des sols (1, 1') selon la revendication 4, caractérisé en ce que le moyen de nettoyage (7) est enroulé sur le cylindre de nettoyage (5) antérieur et / sur le cylindre de nettoyage (6) postérieur.
  6. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le moyen de nettoyage (7) souple est guidé en circulant sans fin autour du moyen de renvoi (5) antérieur, notamment le cylindre de nettoyage antérieur et le moyen de renvoi (6) postérieur, notamment le cylindre de nettoyage postérieur.
  7. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le moyen de nettoyage (7) souple est conçu sous la forme d'une bande de nettoyage.
  8. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le dispositif de nettoyage des sols (1) est conçu sous la forme d'un dispositif de nettoyage aspirant et en ce que l'espace de nettoyage (3) est susceptible de se raccorder sur un guide d'air aspirant.
  9. Dispositif de nettoyage aspirant (1, 1') selon la revendication 8, caractérisé en ce que le dispositif de nettoyage aspirant est conçu sous la forme d'un suceur d'aspirateur pour un aspirateur.
  10. Dispositif de nettoyage aspirant (1, 1') selon la revendication 8, caractérisé en ce que le dispositif de nettoyage aspirant est conçu sous la forme d'une pièce de sol d'un aspirateur balai.
  11. Dispositif de nettoyage des sols (1, 1') selon la revendication 8, caractérisé en ce que le dispositif de nettoyage aspirant est conçu sous la forme d'un ensemble d'un robot aspirant (1').
  12. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le moyen de renvoi (5) antérieur et / ou le moyen de renvoi (6) postérieur peuvent se fixer dans des positions en hauteur discrètes.
  13. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 12, caractérisé en ce que dans une première configuration et / ou au moins dans une première zone (I) verticale, le moyen de renvoi (5) antérieur et / ou le moyen de renvoi (6) postérieur sont logés en étant librement mobiles dans la direction verticale (z).
  14. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 13, caractérisé en ce que dans une deuxième configuration et / ou au moins dans une deuxième zone (II, III) verticale, le moyen de renvoi (5) antérieur et / ou le moyen de renvoi (6) postérieur sont précontraints, notamment contraints par ressort.
  15. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 12 à 14, caractérisé en ce que le dispositif de nettoyage des sols (1, 1') est commutable au moyen d'un sélecteur (21) entre la première configuration, la deuxième configuration et / ou un blocage du moyen de renvoi (5) antérieur et / ou du moyen de renvoi (6) postérieur, dans une position verticale discrète.
  16. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 15, caractérisé en ce que le moyen de nettoyage (7) souple est accouplé avec un entraînement (8, 8').
  17. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 16, caractérisé en ce qu'entre le moyen de renvoi (5) antérieur et le moyen de renvoi (6) postérieur est placé au moins un moyen de renvoi (25) central, sur lequel est guidé le moyen de nettoyage (7) souple.
  18. Dispositif de nettoyage des sols (1, 1') selon la revendication 17, caractérisé en ce que le moyen de renvoi (25) central est guidé de manière mobile dans le corps (2, 2') dans la direction verticale (z).
  19. Dispositif de nettoyage des sols (1, 1') selon l'une quelconque des revendications 1 à 18, caractérisé en ce que le dispositif de nettoyage des sols (1, 1') comporte au moins un système distributeur (13) d'un liquide de nettoyage.
EP21211219.7A 2020-12-21 2021-11-30 Appareil de nettoyage du sol Active EP4014826B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020134499.6A DE102020134499A1 (de) 2020-12-21 2020-12-21 Bodenreinigungsgerät

Publications (3)

Publication Number Publication Date
EP4014826A1 EP4014826A1 (fr) 2022-06-22
EP4014826B1 true EP4014826B1 (fr) 2023-10-18
EP4014826C0 EP4014826C0 (fr) 2023-10-18

Family

ID=78820111

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Application Number Title Priority Date Filing Date
EP21211219.7A Active EP4014826B1 (fr) 2020-12-21 2021-11-30 Appareil de nettoyage du sol

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US (1) US11992173B2 (fr)
EP (1) EP4014826B1 (fr)
DE (2) DE102020134499A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117562446A (zh) * 2022-08-02 2024-02-20 范颂尼控股有限公司 清洁组件和表面清洁装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1963139A (en) * 1933-06-06 1934-06-19 Laura E Mattoon Electrically operated mop
US4642831A (en) * 1985-09-27 1987-02-17 Roth Eric M Roller brush
DE8712292U1 (de) * 1987-09-10 1987-11-26 Bosch-Siemens Hausgeräte GmbH, 8000 München Reinigungs- und Poliergerät
DE4117957A1 (de) * 1991-05-31 1992-12-03 Bernd Krallmann Verfahren und vorrichtung zum saeubern bzw. reinigen einer flaeche, insbesondere einer fussbodenflaeche
US7302733B2 (en) * 2004-09-09 2007-12-04 Minuteman International, Inc. Floor cleaning machine using microfiber pad

Also Published As

Publication number Publication date
US20220192447A1 (en) 2022-06-23
DE102020134499A1 (de) 2022-06-23
EP4014826C0 (fr) 2023-10-18
US11992173B2 (en) 2024-05-28
EP4014826A1 (fr) 2022-06-22
DE202021004344U1 (de) 2023-10-12

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