EP4275570A1 - Pont à rouleaux pour une machine de nettoyage de sol et machine de nettoyage de sol dotée d'un pont à rouleaux - Google Patents

Pont à rouleaux pour une machine de nettoyage de sol et machine de nettoyage de sol dotée d'un pont à rouleaux Download PDF

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Publication number
EP4275570A1
EP4275570A1 EP23172042.6A EP23172042A EP4275570A1 EP 4275570 A1 EP4275570 A1 EP 4275570A1 EP 23172042 A EP23172042 A EP 23172042A EP 4275570 A1 EP4275570 A1 EP 4275570A1
Authority
EP
European Patent Office
Prior art keywords
housing
roller
dirt
longitudinal axis
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.)
Pending
Application number
EP23172042.6A
Other languages
German (de)
English (en)
Inventor
Moritz Beerbaum
Axel Zimny
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.)
Hako GmbH
Original Assignee
Hako 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
Application filed by Hako GmbH filed Critical Hako GmbH
Publication of EP4275570A1 publication Critical patent/EP4275570A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—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
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • 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
    • 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
    • A47L11/202—Floor surfacing or polishing machines combined with vacuum cleaning devices having separate drive for the cleaning 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
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/292—Floor-scrubbing machines characterised by means for taking-up dirty liquid having rotary tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • 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
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—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
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4072—Arrangement of castors or wheels
    • 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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • 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
    • A47L11/4094—Accessories to be used in combination with conventional vacuum-cleaning devices
    • 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 present invention relates to a roller deck for a floor cleaning machine with a housing, the housing having a housing wall which has a rear wall, two opposite side walls and an opening which is arranged to face a floor surface to be cleaned during operation of the roller deck, with a Cleaning roller, which extends along a longitudinal axis and has at least one cleaning element which is arranged radially on the outside of a roller core extending along the longitudinal axis, the cleaning roller extending along its longitudinal axis from the first side wall to the second side wall through the housing interior, wherein the at least one cleaning element of the cleaning roller extends through the opening, and with a drive which is coupled to the cleaning roller in order to drive it in rotation.
  • the present invention further relates to a floor cleaning machine with such a roller deck.
  • a housing is provided, which is preferably attached to the machine housing of a floor cleaning machine in a height-adjustable manner, with a cleaning roller, often in the form of a brush roller, being accommodated in the housing in a rotationally driven manner. Seen in the direction of movement of the floor cleaning machine in front of the brush roller, the floor surface to be cleaned is applied with cleaning liquid during operation, so that the brush roller engages with the floor surface in the area that was previously wetted with cleaning liquid. By engaging the brush roller, dirt is removed from the floor surface to be cleaned.
  • a dirty liquid receiving device is then provided, usually in the form of a so-called suction foot, with which the cleaning liquid remaining on the floor surface to be cleaned is sucked out again with the help of a vacuum source.
  • a dirt container is additionally provided in the housing of the roller deck, which is arranged in such a way that dirt loosened by the brush roller is thrown into the dirt container.
  • One possibility is to arrange the dirt container in such a way that it is arranged in front of the brush roller, viewed in the direction of movement that the circumference of the brush roller has along the line in which it is in contact with the floor surface to be cleaned. Then dirt only has to be thrown forward towards the dirt container at a relatively acute angle to the floor surface. This is referred to as the so-called “forward thrower” principle.
  • the brush rollers should have a certain minimum size, because small brush rollers can be small due to their short tufts of bristles Do not transport very large objects (sweepings), do not penetrate as deeply into uneven floors and also wear out more quickly. If two brush rollers are to be used, this also requires a certain size, which is disadvantageous because the space available for the roller deck on the machine housing is limited and a compact design is desirable due to better handling.
  • the object of the present invention to provide a roller deck and a floor cleaning machine with a roller deck, the roller deck having the largest possible working width in relation to the width of the roller deck and ensuring that remaining on a floor surface to be cleaned Dirt-laden liquid can reliably reach the area of a dirty liquid receiving device arranged behind the roller deck.
  • a roller deck for a floor cleaning machine with a housing, the housing having a housing wall which delimits a housing interior, which includes a rear wall and two opposite side walls and which has an opening which is arranged to close during operation of the roller deck a floor surface to be cleaned, with a cleaning roller which extends along a longitudinal axis and has at least one cleaning element radially on the outside, the cleaning roller extending along its longitudinal axis from the first side wall to the second side wall through the housing interior, the at least one Cleaning element of the cleaning roller extends through the opening, with a drive which is coupled to the cleaning roller in order to drive it in rotation, the drive being designed such that when the cleaning roller is driven, the part of the cleaning roller that is provided with it to intervene in a floor surface to be cleaned, rotates towards the rear wall, a dirt container being arranged in the housing interior on the side of the cleaning roller facing away from the rear wall, a dirt strip arrangement being attached to the housing wall and having a lower edge which runs parallel
  • the roller deck therefore has a housing which in turn has a housing wall which includes, among other things, a rear wall and two side walls which preferably extend away therefrom.
  • a housing wall which includes, among other things, a rear wall and two side walls which preferably extend away therefrom.
  • an opening is provided in the housing wall, which, when the roller deck is in operation and is moved over a floor surface to be cleaned, faces the floor surface to be cleaned.
  • a cleaning roller is also provided which extends along a longitudinal axis and has at least one cleaning element which is arranged radially on the outside, preferably around a roller core. The cleaning roller is arranged in the housing in such a way that part of the cleaning element extends through the opening and is therefore able to engage with the surface to be cleaned during operation of the roller deck, over which the roller deck is moved.
  • a drive is provided on the roller deck, which is coupled to the cleaning roller in order to drive it in rotation.
  • the drive is designed in such a way that it drives the cleaning roller with a direction of rotation such that the part of the cleaning roller that extends through the opening and is intended to engage with a floor surface to be cleaned moves towards the rear wall.
  • the circumference of the cleaning roller moves towards the rear wall in the line in which the cleaning roller is in contact with the floor surface to be cleaned during operation.
  • the roller deck according to the present invention is therefore designed as a so-called “synchronous rotor”.
  • a dirt container is arranged in the housing interior on the side of the cleaning roller facing away from the rear wall, and thus in the front area in front of the cleaning roller, which is designed to receive dirt thrown up by the cleaning roller from a floor surface to be cleaned during operation of the roller deck, this is thrown around the cleaning roller using the "overhead thrower" principle before it reaches the dirt container.
  • a dirt strip arrangement is provided which is attached to the housing wall and has a lower edge which is parallel to the Longitudinal axis runs and is designed to rest on a floor surface to be cleaned when the roller deck, attached to a floor cleaning machine, is moved with it over the floor surface to be cleaned.
  • the dirt strip arrangement is also held on the housing in such a way that the lower edge is arranged on the side of the longitudinal axis of the cleaning roller that faces the rear wall.
  • the dirt bar arrangement is therefore attached behind the cleaning roller when viewed in the normal direction of movement of the roller deck and serves to catch dirty liquid and dirt thrown backwards by the cleaning roller.
  • the dirt strip arrangement is also held on the housing wall in such a way that the distance between the lower edge and the longitudinal axis, measured perpendicular to the longitudinal axis and also perpendicular to the plane of the opening through which the cleaning roller extends out of the housing, can be changed automatically.
  • the relative position of the dirt strip arrangement to the housing wall can be adjusted independently in a direction perpendicular to the floor surface being cleaned, so that a changing length in the radial direction of the cleaning elements on the cleaning roller can be compensated for. It is therefore not necessary to actively take such a change due to wear into account.
  • the structure according to the invention has the advantage that the cleaning roller is attached very close to the rear wall of the housing of the roller deck according to the invention and therefore also close to a dirty liquid receiving device or a suction cup provided behind the roller deck. It is therefore not intended that the dirt container is provided between the cleaning roller and a dirty liquid receiving device. Rather, in the structure according to the invention, the dirt container is arranged “in front of” the cleaning roller.
  • the at least one cleaning element comprises a plurality of bristles which are located radially from the Extend away from the roller core, wherein when the cleaning roller is driven by the drive, the bristles extending through the opening move towards the rear wall.
  • the cleaning roller is therefore designed as a brush roller, such a design having proven to be advantageous and efficient for removing dirt from conventional floor surfaces.
  • the present invention is not limited to brush rollers, but rather it is also conceivable that the cleaning elements are designed in a different way, for example as pads or the like.
  • the dirt strip arrangement is movably mounted on the housing wall in such a way that the distance between the lower edge and the longitudinal axis, viewed perpendicular to the longitudinal axis and perpendicular to the plane of the opening, can be changed automatically by contact of the dirt strip arrangement, preferably the lower edge, with one cleaning floor surface. It is therefore preferably provided within the scope of the invention that the position of the dirt strip arrangement relative to the housing can be changed in that the lower edge of the dirt strip arrangement or a guide wheel comes into contact with the floor surface to be cleaned and then when the housing moves towards the Floor surface is lowered, the dirt strip arrangement does not provide any significant resistance to such lowering, but rather is moved relative to the housing
  • the distance of the lower edge to the longitudinal axis, viewed perpendicular to the longitudinal axis and perpendicular to the plane of the opening can be changed in a range which has an upper and a lower limit, wherein one Biasing device is provided, which biases the dirt strip arrangement into a position in which the distance of the lower edge to the longitudinal axis, viewed perpendicular to the longitudinal axis and perpendicular to the plane of the opening, is maximum within the range.
  • the biasing device is therefore designed in such a way that it biases the dirt strip arrangement away from the cleaning roller and thus ensures that the lower edge of the dirt strip arrangement is in contact with the floor surface to be cleaned, so that dirty liquid is prevented from being thrown through the rotating cleaning roller "under” the dirt strip arrangement becomes.
  • the dirt strip arrangement has a holder and a flexible, flat dirt strip element which has the lower edge and which is releasably attached to the holder, the holder preferably being releasably attached to a holding element which is movably mounted on the housing wall.
  • This two-part structure consisting of holder and dirt strip element on the one hand and holding element on the other hand enables the element on which the lower edge is provided and which is exposed to wear can be changed in a simple manner. All that is required is that the holder is first released from the holding element movably mounted on the housing and then the dirt strip element is replaced.
  • the dirt strip element runs from the lower edge inclined upwards towards the housing and away from the cleaning roller. This ensures that the movement of the cleaning roller causes liquid and coarse dirt laden with dirt to be thrown onto a path around the cleaning roller so that they reliably reach the dirt container
  • the dirt strip arrangement on the holder has at least one rotatable guide wheel, the at least one guide wheel being attached to the holder in such a way that when the lower edge rests on a floor surface to be cleaned, the guide wheel also rests on the floor surface to be cleaned on the floor surface.
  • the guide wheel ensures that the dirt bar element does not have to carry the entire load of the dirt bar arrangement, but rather a part of this load is absorbed by the guide wheel. This reduces wear on the dirt strip element.
  • the holding element is mounted on the rear wall so as to be displaceable between a retracted position and an extended position, with the distance the lower edge of the longitudinal axis, measured perpendicular to the longitudinal axis and perpendicular to the opening, is smaller in the retracted position than in the extended position.
  • the height adjustment of the dirt strip arrangement is achieved in a simple manner in that the holding element is mounted on the rear wall of the housing in a displaceable and thus guided manner.
  • a first and a second lever arm are pivotally articulated on the rear wall, the free ends of which are articulated on the holding element, so that the holding element is displaced by pivoting the lever arms relative to the housing in a direction perpendicular to the opening.
  • the holding element is guided in a simple manner.
  • the lever arms it is possible for the lever arms to be spring-biased relative to the housing in such a way that they bias the holding element towards a floor surface to be cleaned. As a result, the holder with the dirt strip element is pressed towards the floor surface to be cleaned.
  • the dirt container can be inserted into the housing interior through an opening in one of the side walls up to an end position and can be pulled out of the housing interior from the end position, with the dirt container extending in the end position over the entire length of the cleaning roller.
  • a side-slidable dirt container has the advantage that it can be easily removed from the roller deck, even if it is attached to a floor cleaning machine, since the side area of the roller deck is easily accessible.
  • a limit switch is provided on the housing wall, which is arranged in this way is that it is in a first position when the dirt container is in the end position and is moved out of the first position when the dirt container is not in the end position.
  • a signal can be generated that only allows the roller deck to be put into operation if the limit switch is in the first position.
  • a detection element is provided and arranged such that it extends into the dirt container, the detection element being displaceable between a first position and a second position, with an end of the detection element facing the dirt container in the first Position is closer to a bottom of the dirt container than in a second position, wherein a detection device is provided which is designed to detect whether the detection element is in the first position or in a position away from the first position, and wherein the detection device is designed to generate a first signal when the detection element is in the first position and to generate a second signal when the detection element is in a position away from the first position.
  • the detection element can be used to determine how high the level of dirt is in the dirt container. If it is determined with the aid of the detection device that the level in the dirt container has exceeded a maximum height, this embodiment can be used to generate a second signal that indicates to the user that the dirt container needs to be emptied.
  • the present invention provides a floor cleaning machine with a chassis with wheels, so that the chassis is designed to be moved over a floor surface to be cleaned, and with a machine housing, a roller deck according to one or more of the previously described embodiments being held on the machine housing in this way is that the cleaning roller can engage with the floor surface to be cleaned, the housing being slidably mounted on the machine housing in such a way that it can assume different positions along a height direction that extends vertically away from the floor surface to be cleaned, a position detection device being provided is, which is designed to detect the position of the housing relative to the machine housing in the height direction, and wherein the position detection device is designed to output a predetermined signal when the distance of the housing to the floor surface to be cleaned falls below a predetermined value.
  • the degree of wear of the at least one cleaning element on the cleaning roller to be detected by determining the position of the roller deck relative to the machine housing.
  • the exemplary embodiment of a floor cleaning machine 1 has a machine housing 3 in which a dirty liquid container and a cleaning liquid container (both not shown) are accommodated. Furthermore, the machine housing 3 is carried by a chassis 5, which has two rear wheels 7, which are driven independently of one another, and a front wheel 9, which can be freely pivoted. Because the rear wheels 7 can be driven independently of one another, the floor cleaning machine 1, which in the present exemplary embodiment is designed as an autonomously driving machine, can be moved over a floor surface 11 to be cleaned, whereby the floor cleaning machine 1 can also be steered.
  • a roller deck 11 is mounted on the machine housing 3, wherein the position of the roller deck 13 can be adjusted in a direction perpendicular to the floor surface 11 to be cleaned, on which the floor cleaning machine 1 is arranged.
  • a dirty liquid receiving device 15 in the form of a suction cup is provided in the rear area of the floor cleaning machine 1, with which dirty liquid located on the floor surface 11 to be cleaned can be picked up and conveyed into the dirty liquid container.
  • the roller deck 13 of the exemplary embodiment of a floor cleaning machine 1 has a housing 19 which comprises a housing wall and at least partially surrounds and thus delimits a housing interior 21, the housing wall having, among other things, a rear wall 23 and two side walls 25, 27, which are extend forwards parallel to each other from the rear wall 23.
  • a mounting opening 29 is provided in the right side wall 25 as seen from the rear wall 23, which can be closed by a cover 31 and through which the housing interior 21 is accessible from the side.
  • the housing 19 has an opening 33 in its base, i.e. in the area that faces the floor surface 11 to be cleaned during operation of the floor cleaning machine 1.
  • a cleaning roller in the form of a brush roller 35 is accommodated in the housing interior 21, the brush roller 35 having a roller core 37 which extends along a longitudinal axis 39, with bristles 41 extending radially outwards being attached to the roller core 37.
  • the brush roller 35 is arranged in the housing interior 21 in such a way that the longitudinal axis 39 runs parallel to the rear wall 23 and the brush roller 35 extends between the side walls 25, 27.
  • the bristles 41 are dimensioned such that they extend outwards through the opening 33 in the bottom of the housing 19 towards a floor surface 11 to be cleaned, as shown in particular Figure 1 emerges.
  • a drive 43 is provided, which in the exemplary embodiment shown here is designed as a motor, the drive 43 being coupled to the brush roller 35 via a belt drive, not shown in detail, so that it, as shown by the arrow indicating the direction of rotation 45 Figure 2 shown, is driven in rotation in such a way that the part of the bristles 41, which extend through the opening 33 towards the floor surface 11 to be cleaned, moves towards the rear wall 23.
  • the drive 43 is therefore designed in such a way that it extends through opening 33 extending part of the cleaning roller, namely the bristles 41, when roller 35 is driven by the drive 43, rotates towards the rear wall 23.
  • a dirt container 47 is accommodated so as to be displaceable in the transverse direction of the housing 19, i.e. perpendicular to the side walls 25, 27.
  • the dirt container 47 is arranged on the side of the brush roller 35 facing away from the rear wall 23 and thus in the front part of the housing 19.
  • the dirt container 47 extends over the entire length of the brush roller 35 through the housing interior 21 and parallel to its longitudinal axis 39.
  • a limit switch 49 is attached to the housing wall, which is activated by an actuating element 51 on the dirt container 47 from a first position, which it assumes , when the actuating element 51 is not in the area of the limit switch 49, is moved into a second position when the dirt container 47 has reached the disfigurement in which it is completely pushed into the housing interior 21.
  • the limit switch 49 can therefore be used to detect whether the dirt container 47 is disfigured and therefore completely inserted into the housing interior 21.
  • FIG. 3 shows that a detection element 53 is provided on the machine housing 3, which is mounted on the machine housing 19 so as to be displaceable between a first position and a second position essentially in the vertical direction, ie during operation perpendicular to the floor surface 11 to be cleaned.
  • the detection element 53 extends into the dirt container 47 and towards its bottom 55, so that a free end 57 of the detection element 53 pointing towards the bottom 55 of the dirt container 47 can be at a different distance from the floor 55.
  • the detection element 53 is moved upwardly toward the second position relative to a first position in which the free end 57 is closest to the bottom 55.
  • This change in the position of the detection element 53 can be detected by a detection device 59, which is also attached to the machine housing 3.
  • the detection device 59 is designed such that it generates a first signal when the detection element 53 is in the first position, i.e. near the bottom 55 of the dirt container, and generates a second signal that differs from the first signal when this Detection element is in a second position remote from the first position. In this way, the detection device 59 can generate a signal that indicates to a user that the dirt container 47 is filled and should be emptied.
  • a spray device having two nozzles 61 is provided on the housing 19, with which cleaning liquid can be applied to the floor surface 11 to be cleaned, the nozzles 61 being aligned in such a way that they remove liquid from the rear wall 23 Apply to the side of the housing 19 and thus in the area of the front of the housing 19 to the floor surface 11 to be cleaned.
  • the spray device with the nozzles 61 is connected to the cleaning liquid container in the machine housing 3 via lines.
  • FIGS. 2 to 5 show Figures 2 to 5 as well as Figure 7 in that a holding element 63 is attached to the rear wall 23 of the housing 19 in such a way that it is arranged along the rear wall 23 in a vertical direction, ie when the roller deck 13 is arranged with a floor cleaning machine 1 on a floor surface 11 to be cleaned, essentially vertically to this floor surface 11, can be moved over an area in a manner still described.
  • a holder 65 is provided, which can be releasably but firmly attached to the holding element 63 using toggle lever arrangements 67, with pins 69 on the holding element 63 engaging with keyhole-shaped openings 71 in the holder 65.
  • a dirt strip element 73 is fastened using clamping elements 75, the dirt strip element 73 being designed to be flat and flexible and having a lower edge 77 which extends parallel to the longitudinal axis 39 of the brush roller 35 and is intended to rest on the floor surface to be cleaned when the roller deck is moved together with a floor cleaning machine 1 over the floor surface 11 to be cleaned.
  • the dirt strip arrangement comprising the holding element 63, the holder 65 and the dirt strip element 73 can be moved along the rear wall 23 between a retracted position and an extended position in such a way that the distance between the lower edge 77 increases the longitudinal axis 39, seen perpendicular to the longitudinal axis 39 and also perpendicular to the plane of the opening 33, which is provided in the bottom of the housing 19, can be changed.
  • the distance between the lower edge 77 and the longitudinal axis 39 is smaller in the retracted position than in the extended position.
  • connection between the holding element 63 and the rear wall 23 is designed such that the resistance to movement of the holding element 63 relative to the housing 19 is opposite, is so small that when the roller deck 13 is placed on a floor surface to be cleaned, the dirt strip arrangement 63, 65, 77 easily shifts upwards, so that the distance between the lower edge 77 and the longitudinal axis 39 is reduced.
  • lever arms 79 are pivotally connected to the housing 19 and can be biased in the pivoting direction in such a way that their free ends 81 are in Figure 4 seen counterclockwise exert a downward force on the holding element 63, with which the free ends 81 are pivotally connected at articulation points 83.
  • the spring-loaded lever arms 79 therefore also represent a pretensioning device which biases the dirt strip element arrangement 63, 65, 73 into a position in which the distance between the lower edge 77 and the longitudinal axis 39 is within the area in which the holding element 63 can be displaced relative to the rear wall 23. is maximum.
  • the spring preload of the lever arms 79 relative to the housing 19 is dispensed with.
  • guide wheels 85 are attached to the holder 65 in such a way that they also rest on a floor surface 11 to be cleaned, if this is the case for the lower edge 77 of the dirt strip element 73.
  • the guide wheels 85 thus support the dirt strip arrangement 63, 65, 73 relative to the floor surface 11 to be cleaned and thereby reduce the wear that occurs when the dirt strip element 73 slides over a floor surface 11 to be cleaned. It also prevents the dirt strip element from folding backwards.
  • the floor cleaning machine 1 has a position detection device 87, with which, as is known per se, the position of the roller deck 13 in a direction that is essentially perpendicular to a floor surface 11 to be cleaned, when the floor cleaning machine 1 is arranged thereon, relative to the Machine housing 3 is detected.
  • This device 87 can in particular be designed in such a way that it outputs a predetermined signal when the distance between the housing 19 of the roller deck 13 and the machine housing 3 exceeds a predetermined value. This is the case when the bristles 41 of the brush roller 35 are worn to an excessive extent.
  • the floor cleaning machine 1 is designed in such a way that it is vertical Position of the roller deck 13 relative to the machine housing 3 determines the state of the brush roller 35 at least to the extent that the brush roller 35 is still usable or is too worn out.
  • the rotation of the brush roller 35 sets the movement of the floor cleaning machine 1, which is in the in Figure 2 There is no resistance in the direction of movement 89 marked by an arrow.
  • the direction of rotation 45 chosen in this way prevents dirty liquid from being on the floor surface 11 to be cleaned in front of the roller deck, i.e. in Figure 2 on the right side, dammed up. Rather, the dirty liquid is conveyed backwards in the direction of the dirty liquid receiving device 15 (see Figure 1 ).
  • the arrangement of the brush roller 35 viewed in the direction of movement 89 of the floor cleaning machine 87, near the rear wall 23, enables the brush roller 35 to be arranged very close to the dirty liquid receiving device 15.
  • the dirt strip arrangement 63, 65, 73 is shifted in the vertical direction with respect to the floor surface 11 to be cleaned relative to the housing 19 so that the lower edge 77 of the dirt strip element 73 has a comparatively large distance 91 to the longitudinal axis 39 of the brush roller 35, where this distance 91 is measured perpendicular to the longitudinal axis 39 and also perpendicular to the plane of the opening 33.
  • the roller deck 13 is lowered further towards the floor surface 11 to be cleaned, the dirt strip arrangement 63, 65, 73 moving along the rear wall 23 of the housing 19 in such a way that the distance of the lower edge 77 from the longitudinal axis 39 decreases. If this distance 91 falls below a predetermined value, the distance of the housing 19 from the machine housing 3 also exceeds a predetermined value, which can be detected by the position detection device 87. This triggers a wear signal for a user, who can then replace the brush roller 35 through the opening 33 of the housing 19.

Landscapes

  • Electric Suction Cleaners (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP23172042.6A 2022-05-10 2023-05-08 Pont à rouleaux pour une machine de nettoyage de sol et machine de nettoyage de sol dotée d'un pont à rouleaux Pending EP4275570A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022111606.9A DE102022111606A1 (de) 2022-05-10 2022-05-10 Walzendeck für eine Bodenreinigungsmaschine sowie Bodenreinigungsmaschine mit einem Walzendeck

Publications (1)

Publication Number Publication Date
EP4275570A1 true EP4275570A1 (fr) 2023-11-15

Family

ID=86330594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23172042.6A Pending EP4275570A1 (fr) 2022-05-10 2023-05-08 Pont à rouleaux pour une machine de nettoyage de sol et machine de nettoyage de sol dotée d'un pont à rouleaux

Country Status (5)

Country Link
US (1) US20230363605A1 (fr)
EP (1) EP4275570A1 (fr)
KR (1) KR20230157895A (fr)
CN (1) CN117017132A (fr)
DE (1) DE102022111606A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789449A (en) * 1972-06-21 1974-02-05 Scott & Fetzer Co Hard surface floor cleaner
EP0595007A1 (fr) * 1992-10-24 1994-05-04 Alfred Kärcher GmbH & Co. Machine de nettoyage du sol
EP2436296A1 (fr) * 2003-12-10 2012-04-04 Vorwerk & Co. Interholding GmbH Appareil de balayage apte à être mis en mouvement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789449A (en) * 1972-06-21 1974-02-05 Scott & Fetzer Co Hard surface floor cleaner
EP0595007A1 (fr) * 1992-10-24 1994-05-04 Alfred Kärcher GmbH & Co. Machine de nettoyage du sol
EP2436296A1 (fr) * 2003-12-10 2012-04-04 Vorwerk & Co. Interholding GmbH Appareil de balayage apte à être mis en mouvement

Also Published As

Publication number Publication date
KR20230157895A (ko) 2023-11-17
DE102022111606A1 (de) 2023-11-16
US20230363605A1 (en) 2023-11-16
CN117017132A (zh) 2023-11-10

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