EP3622871B1 - Appareil de nettoyage doté d'une grille de protection mobile - Google Patents

Appareil de nettoyage doté d'une grille de protection mobile Download PDF

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Publication number
EP3622871B1
EP3622871B1 EP19188728.0A EP19188728A EP3622871B1 EP 3622871 B1 EP3622871 B1 EP 3622871B1 EP 19188728 A EP19188728 A EP 19188728A EP 3622871 B1 EP3622871 B1 EP 3622871B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
protective grating
cleaning roller
cleaning appliance
roller
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
EP19188728.0A
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German (de)
English (en)
Other versions
EP3622871A1 (fr
Inventor
Stefan Hassfurter
Markus Kühnel
Pawel Maksymowicz
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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Publication date
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Publication of EP3622871A1 publication Critical patent/EP3622871A1/fr
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    • 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
    • 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

Definitions

  • the invention relates to a cleaning device, e.g. B. a cleaning robot, with a rotating cleaning roller, such as a bristle roller.
  • a cleaning robot navigates autonomously through different rooms.
  • a cleaning robot can encounter various obstacles.
  • the cleaning robot should be set up to avoid an obstacle in an autonomous manner or to drive over the obstacle without damaging the obstacle.
  • the (mains) cables lying on the floor to be cleaned pose a particular challenge and can get caught in a rotating cleaning roller of the cleaning robot when it is driven over.
  • JP 2013 - 146 305 A , US 1903793 A and JP 2013 - 230 198 A describe each one
  • U.S. 2,239,762 A describes a suction device with a protective grille.
  • DE 10 2017 100 608 A1 describes a vacuum cleaner with a base plate.
  • US 2002/038489 A1 describes a vacuum cleaner with a protective bar.
  • the present document is concerned with the technical task of efficiently and reliably avoiding elongated objects, in particular cables, from getting caught in a cleaning roller of a cleaning device, in particular a cleaning robot. A comfortable removal of the cleaning roller (e.g. for maintenance purposes) should be made possible. Furthermore, the present document deals with the technical task of increasing the reliability with which an obstacle can be overcome by a cleaning robot.
  • a cleaning device for cleaning a surface in particular for cleaning a floor
  • the cleaning device can in particular be a cleaning robot which is set up to navigate independently over the area in order to clean the area.
  • the cleaning device comprises a housing with a suction channel and a suction mouth adjoining the suction channel.
  • the suction mouth faces the surface to be cleaned.
  • the housing of the cleaning device can have an upper side on which one or more operating elements for operating the cleaning device can be arranged.
  • the housing can have an underside, e.g. B. with a base plate, which faces the surface to be cleaned in the cleaning operation.
  • the suction mouth can be arranged on the underside and form an opening to the suction channel.
  • the suction channel can be connected to a blower which is set up to generate a negative pressure in order to suck air through the suction channel and the suction mouth.
  • the cleaning device comprises a cleaning roller which is arranged in the suction channel and which is set up to rotate about an axis of rotation during the cleaning operation.
  • the cleaning roller can be driven by an (electric) drive.
  • the cleaning roller can have bolts which protrude radially from the cleaning roller and are designed to act mechanically on the surface to be cleaned.
  • the cleaning roller can be rotatably mounted on bearings within the suction channel.
  • the cleaning roller can be designed in such a way that the cleaning roller can be removed from the housing, in particular from the suction channel.
  • the cleaning device comprises a protective grille movably attached to the housing.
  • the protective grille can comprise a metal or consist of a metal.
  • the protective grille is attached to the housing, in particular to an edge of the suction mouth, in such a way that it can be moved between a closed position and an open position, the protective grille being connected to the housing in both positions.
  • the protective grille is designed to cover the suction mouth and the cleaning roller at least in some areas in the closed position.
  • the protective grille is designed to enable the cleaning roller to be removed from the suction channel in the open position.
  • the protective grille is designed to snap into place in the open position, so that the protective grille remains in the open position.
  • the protective grille can be mounted on a first edge (in particular the front edge) of the suction mouth so that it can rotate about a pivot axis.
  • the protective grille can comprise at least one longitudinal rod which extends from the pivot axis to an opposite second edge (in particular the rear edge) of the suction mouth.
  • the longitudinal rod can then have a segment bent towards the cleaning roller (which forms a kind of hook), the bent segment being designed to snap into place on the first edge of the suction mouth in order to hold the protective grille in the open position.
  • the protective grille can be designed to prevent elongated and / or cable-shaped objects from being drawn into the suction channel by the rotating cleaning roller.
  • the protective grille can be attached to the housing in such a way that the protective grille can be pivoted about a pivot or rotation axis (between the closed position and the open position).
  • the protective grille can be arranged to be pivoted about a pivot axis which is arranged on the front edge of the suction mouth with respect to the translational direction of movement of the cleaning device.
  • the protective grille can comprise several axle segments (e.g. two, three, four or more axle segments), which are mounted in bearings on an edge (in particular the front edge, in particular on an inside of the front edge) of the suction mouth in such a way that the protective grille can be pivoted around the axis segments.
  • the protective grille can comprise one or more springs arranged on the axle segments, in particular torsion springs and / or leg springs, which are set up to move the protective grille into the closed position and / or to hold it in the closed position. By providing one or more springs, it can be effected in an efficient and reliable manner that the protective grille remains in the closed position during the cleaning operation.
  • the cleaning roller is rotatably mounted in at least one bearing.
  • the cleaning device can, for. B. comprise an operating element (z. B. on the top of the housing) that enables a user of the cleaning device to convey the cleaning roller out of the warehouse (in particular to push it out of the warehouse). Maintenance of the cleaning roller can thus be made possible in a convenient manner.
  • the cleaning device can be designed in such a way that the cleaning roller presses against the protective grille when the cleaning roller has been conveyed out of the store, thereby moving the protective grille into a partially open position.
  • the protective grille can preferably cover the suction mouth in the partially open position in such a way that the cleaning roller is held back by the protective grille so as not to fall out of the suction channel (when the cleaning device is held upside down).
  • the protective grille in the partially open position, can be arranged so far away from a (rear) edge of the suction mouth that the protective grille, in particular a transverse bar of the protective grille, can be comfortably gripped by a user to move the protective grille into the open position Position to move.
  • the cleaning roller can be designed to rotate in the cleaning operation of the cleaning device in such a way that the translational movement of the cleaning device along the translational movement direction of the cleaning device is supported by the rotational movement of the cleaning roller. A reliable climbing ability of the cleaning device to drive over obstacles can thus be achieved.
  • the protective grille can be designed in such a way that in a first region lying in front of the axis of rotation with respect to the direction of movement, a drive action of the cleaning roller is essentially not impaired by the protective grille.
  • the protective grille in the first area can run at least partially parallel to a circular circumference of the cleaning roller (so that a segment bent towards the cleaning roller is formed). This course of the protective grille can be used (as explained above) to enable the protective grille to snap into place on an edge of the suction mouth.
  • the protective grille can be designed in such a way that, in a second area behind the axis of rotation in relation to the direction of movement, the protective grille acts as a sliding rib for an obstacle over which the cleaning device runs.
  • the protective grille can run essentially in a straight line in the second area (towards the rear edge of the suction mouth).
  • Such a configuration of the protective grille can increase the climbing ability of the cleaning device in relation to obstacles (e.g. steps or carpet edges).
  • the protective grille can have one or more longitudinal bars which extend from the front edge in relation to the translational direction of movement of the cleaning device to the rear edge of the suction mouth.
  • the one or more longitudinal rods can run within a plane arranged perpendicular to the axis of rotation of the cleaning roller.
  • the cleaning roller can have bristles which at least partially protrude beyond the protective grille when the cleaning device is in operation.
  • the cleaning roller can then comprise recesses without bristles for the corresponding one or more longitudinal rods at one or more points along the axis of rotation. In this way, an impairment of the rotation of the cleaning roller by the protective grille can be avoided in an efficient manner.
  • the protective grille can, for. B. be designed as a meander-shaped bracket.
  • the protective grille can comprise a sequence of longitudinal bars and transverse bars perpendicular thereto (wherein the cross bars arranged on the pivot axis can form axis elements of the protective grille). A protective grille can thus be provided in a particularly efficient manner.
  • the suction mouth can have a groove or a recess for the protective grille on the rear edge.
  • the one or more transverse bars of the protective grille can then be arranged or sunk in the groove of the suction mouth in the closed position.
  • a particularly reliable cleaning operation can thus be made possible. In particular, it can thus be ensured that the protective grille remains in the closed position during the cleaning operation (and does not get caught on an object).
  • the housing of the cleaning device can comprise one or more bulges and / or barrel-shaped shields on the front edge of the suction mouth with respect to the translational direction of movement of the cleaning device.
  • the one or more longitudinal bars can then be aligned with the one or more bulges and / or barrel-shaped shields. A particularly reliable protection for cable-shaped objects can thus be achieved.
  • the present document is concerned with providing efficient protection for the cleaning roller of a cleaning device in order to reliably prevent elongated objects, in particular cables, from being drawn into the suction mouth of the cleaning device by the cleaning roller.
  • a cleaning robot is discussed below as an example. It should be noted that the measures described in this document are generally applicable to cleaning devices with cleaning rollers, e.g. B. also on handheld vacuum cleaners.
  • Fig. 1a shows the top side 121 of a cleaning robot 100.
  • a user interface with one or more operating elements 107, 108 can be arranged on the top side 121 of the cleaning robot 100.
  • a control element 107, for. B. a button can be provided with which the cleaning roller of the cleaning robot 100 can be conveyed from a store, in particular pressed, in order to enable a user to remove the cleaning roller.
  • one or more operating elements 108 can be provided, e.g. B. to start or end a cleaning process.
  • a user interface can thus be arranged on the upper side 121 of the cleaning robot 100, which enables a user of the cleaning robot 100 to make control inputs.
  • Figure 1b shows the cleaning robot 100 in a side view from the front.
  • One or more sensors 105 (for example a distance sensor and / or a touch sensor and / or a shock sensor) can be arranged on the (front) side 123 of the cleaning robot 100.
  • the one or more sensors 105 can be set up to acquire sensor data which indicate whether an obstacle is arranged in front of the cleaning robot 100 in the direction of movement 110.
  • the detection of an obstacle can cause the cleaning robot 100 to rotate about its vertical axis, which is perpendicular to the floor 150, and thereby change the direction of movement 110 in order to avoid the obstacle.
  • Figure 1c shows the underside 122 of the cleaning robot 100, which in the cleaning or vacuuming operation of the cleaning robot 100 faces the floor 150 to be cleaned of a cleaning area, for example a room in a building.
  • the underside 122 of the cleaning robot 100 typically has one or more drive units 101 (with one or more drive wheels) through which the cleaning robot 100 can be moved in order to clean different areas of a floor 150.
  • the cleaning robot 100 can have one or more guide elements 104 (for example non-driven wheels) which enable a stable movement of the cleaning robot 100 over the floor 150 to be cleaned.
  • a cleaning robot 100 may include a cleaning roller 102 (e.g. a bristle roller) that is configured to clean the floor 150 under the cleaning robot 100.
  • the cleaning roller 102 can be shielded by one or more barrel-shaped shields 103 in the direction of movement 110 of the cleaning robot 100. Larger objects lying on the floor can be pushed aside through the one or more shields 103 in order to prevent larger objects from getting caught in the rotating cleaning roller 102.
  • the front area of the cleaning robot 100 which is at the front in the direction of movement 110 can have an essentially straight contour (which, for example, makes up 20% or more of the circumference of the cleaning robot 100).
  • the use of a rectilinear contour enables a relatively large cleaning roller 102 to be provided for reliable cleaning of the floor 150 of a cleaning area.
  • the Figures 2a and 2b show the cleaning roller 102 of a cleaning robot 100 arranged on the underside 122.
  • the cleaning roller 102 can have bristles 201 which can extend radially away from the cleaning roller 102.
  • the cleaning roller 102 is typically arranged in a suction channel located behind a suction mouth 203, through which air is sucked into the interior of the cleaning robot 100.
  • dust raised by the cleaning roller 102 through the suction mouth 203 can be sucked into a dust container in the interior of the cleaning robot 100.
  • the suction mouth 203 can be delimited in the front area by the shields 103 and in the side area and in the rear area by shields 204. By means of the shields 103, 104, the suction area can be limited to the area of the cleaning roller 102, as a result of which the suction effect is improved.
  • the cleaning roller 102 can be mounted within the suction mouth 203 at both ends of the cleaning roller 102, so that the cleaning roller 102 can rotate about the longitudinal axis of the cleaning roller 102.
  • Fig. 2a shows one of the bearings 202 of the cleaning roller 102. By actuating the operating element 107, the cleaning roller 102 can, if necessary, be lifted or pressed out of the bearing 202 so that the cleaning roller 102 can be removed from the suction mouth 203.
  • the rotating cleaning roller 102 can, if necessary, pull an elongated object, for example a cable, into the suction channel via the suction mouth 203, whereby the cleaning roller 102 can be blocked and / or the drawn-in object can be damaged.
  • the cleaning robot 100 has, as shown in FIGS Figures 2a and 2b shown, a protective grille 210 which covers the suction mouth 203 on the underside 122 of the cleaning robot 100.
  • the protective grille 210 is arranged on the suction mouth 203 in such a way that the protective grille 210 can be opened in order to create free access to the cleaning roller 102.
  • the protective grille 210 can be rotatably mounted on a first edge, in particular on the front edge, of the suction mouth 203.
  • Fig. 2a shows the protective grille 210 in a closed position, in which the protective grille 210 can be countersunk in depressions or in a groove 211 on a second edge (in particular on the rear edge) which is opposite the first edge.
  • Figure 2b shows the protective grille 210 in a partially open position, in which the protective grille 210 has been lifted out of the recesses 211, but still shows the suction mouth 203 largely covered.
  • the protective grille 210 can be designed in such a way that the protective grille 210 prevents the cleaning roller 102 (conveyed from the bearing 202) from falling out of the suction channel when the protective grille 210 is in the partially open position.
  • the protective grille 210 can be raised so far from the recesses 211 that the protective grille 210 can be comfortably gripped by a user in order to move the protective grille 210 into the open position.
  • FIG. 2c shows an exemplary protective grille 210.
  • the protective grille 210 comprises a plurality of axis segments 212 which are arranged along a rotation or pivot axis 220 of the protective grille 210.
  • the axle segments 212 can be rotatably mounted in bearings on the first edge of the suction mouth 203 of the cleaning robot 100.
  • return springs 213, in particular torsion springs can be arranged on one or more axle segments 212, which are designed to move the protective grille 210 into the closed position or to hold it in the closed position.
  • the protective grille 210 has longitudinal bars 214 extending from the axis segments 212 essentially perpendicular to the axis of rotation 220.
  • the longitudinal bars 214 run from the first edge (in particular the front edge) to the second edge (in particular the rear edge) of the suction mouth 203 and thus provide the protective effect of the protective grille 210.
  • the longitudinal bars 214 preferably run parallel to the translational direction of movement 110 of the Cleaning robot 100.
  • the longitudinal rods 214 can be connected to one another in pairs via a respective transverse rod 215. In the closed position of the protective grille 210, the transverse rods 215 can each be arranged in a recess 211 on the second edge of the suction mouth 203.
  • a hook-shaped and / or curved segment 216 can be arranged at the transition between an axis segment 212 and a longitudinal rod 214, the hook-shaped and / or curved segment 216 running essentially perpendicular to the axis of rotation 220.
  • the hook-shaped and / or curved segment 216 can be used to lock the protective grille 210 in an open position.
  • Fig. 3a shows a sectional view of the suction mouth 203 with the cleaning roller 102 perpendicular to the axis of rotation 310 of the cleaning roller 102.
  • the protective grille 210 is in the closed position, so that the one or more cross bars 215 of the protective grille 210 in the recesses 211 on the second edge of the Suction mouth 203 lie.
  • Fig. 3a also shows a bearing 301 on the first edge of the suction mouth 203, in which an axis segment 212 of the protective grille 210 is rotatably or pivotably mounted.
  • the return spring 213, which acts on the protective grille 210 to hold the protective grille 210 in the closed position.
  • a longitudinal bar 214 of the protective grille 210 extends, starting from an axis segment 212, first to the top side 121 of the cleaning robot 100 and then has a bend in order to guide the longitudinal bar 214 to the second edge of the suction mouth 203.
  • the longitudinal rod 214 thus forms a hook-shaped and / or curved segment 216 in the immediate vicinity of the axle segment 212.
  • the longitudinal rod 214 runs essentially parallel to the translational movement direction 110 of the cleaning robot 110.
  • the longitudinal rod 214 runs essentially in a plane arranged perpendicular to the axis of rotation 310 of the cleaning roller 102.
  • the cleaning roller 102 can then have a recess between the bristles 201 for each longitudinal rod 214, so that the longitudinal rods 213 can be guided between the bristles 212 of the cleaning roller 102 to the second edge of the suction mouth 203 without touching the cleaning roller 102.
  • it can be effected in an efficient manner that the cleaning roller 102 can act mechanically past the protective grille 210 on a floor 150 to be cleaned. Reliable cleaning can thus be made possible even when a protective grille 210 is used.
  • Figure 3b shows the protective grille 210 in a partially open position, in which the protective grille 210, in particular the one or more cross bars 215 of the protective grille 210, have been lifted out of the recesses 211.
  • the partially open position of the protective grille 210 can be brought about by the cleaning roller 102 being conveyed out of the bearing 202 by actuating the operating element 107, in particular is pressed.
  • Figure 3b shows a stamp 311 which can be triggered by the operating element 107 in order to press the cleaning roller 102 out of the bearing 202.
  • the force caused by the plunger 311 and / or by the weight of the cleaning roller 102 can act against the restoring force of the one or more restoring springs 213 of the protective grille 210, and thus hold the protective grille 210 in the partially open position.
  • the protective grille 210 furthermore at least partially covers the suction mouth 203, so that the cleaning roller 102 cannot fall out of the suction mouth 203 when the cleaning robot 100 is lifted from the floor 150.
  • the cross bars 215 of the protective grille 210 are easily accessible to a user in the partially open position, so that the protective grille 210 can be opened completely by a user in a comfortable manner in order to remove the cleaning roller 102 from the suction mouth 203.
  • Figure 3c shows the protective grille 210 in an open position before the protective grille 210 snaps into place on the first edge 320 of the suction mouth 203.
  • the hook-shaped and / or curved segment 216 of a longitudinal rod 214 and the first edge 320 of the suction mouth 203 can be shaped in such a way that the first edge 320 acts on the hook-shaped and / or curved segment 216 when the protective grille 210 is touched by a user is moved to the open position. If a certain locking force is overcome by the user, the protective grille 210 can be moved into a locked position (see FIG Fig.
  • the cleaning roller 102 can be conveniently removed from the suction channel by a user when the protective grille 210 is in the locked position.
  • the protection and removal system comprises a protective grille 210, e.g. B. in the form of a wire hanger.
  • the protective grille 210 is in the front area, in particular on the front edge 320, of the Suction mouth 203 rotatable and mounted under pretension.
  • the preload can be brought about by means of two leg springs 213.
  • the rear part of the protective grille 210 lies in a groove 211 and is fixed in this position via the prestress of the torsion springs 213.
  • the protective grille 210 follows the contour of the cleaning roller 102 in the front area and then runs out tangentially to the end of the suction mouth 203 (see FIG Fig. 3a ).
  • the cleaning roller removal control element 107 When the cleaning roller removal control element 107 is actuated, the cleaning roller 102 is released from its mounting 202 and thrown obliquely out of the suction channel of the cleaning robot 100.
  • the cleaning roller 102 is secured by the protective grille 210 in a removal position that is comfortable for a user, so that the cleaning roller 102 cannot fall onto the floor 150.
  • the cleaning robot 100 can then be rotated by the user for removal, so that the underside 122 of the cleaning robot 100 is accessible to the user.
  • the cleaning roller 102 lifts the protective grille 210 (e.g. the metal bracket) out of its groove 211 (see FIG Figures 2b and 3b ). This makes it easy for a user to open the protective grille 210 further.
  • the protective grille 210 securely engages on the front edge 230 of the suction mouth 203 (in particular on the barrel profile 103). The cleaning roller 102 can then be conveniently removed and reinserted without the protective grille 210 having to be held.
  • the protective grille 210 can be designed in such a way that the protective grille 210 improves the climbing behavior of the cleaning robot 102 over obstacles. Furthermore, the protective grille 210 can be designed in such a way that the protective grille 210 engages as little as possible in the contour of the suction mouth 203 in order to ensure reliable coarse dirt pick-up and reliable dust pick-up.
  • the cleaning roller 102 typically rotates in such a way that the movement of the cleaning robot 100 is supported by the rotational movement of the cleaning roller 102 will.
  • the cleaning roller 102 rotates in the Figures 3a to 3d shown example counterclockwise.
  • the relative movement of the cleaning roller 102 thus acts in the front region of the suction mouth 203 against the floor 150 and thereby supports the driving over of obstacles.
  • the protective grille 210 is therefore preferably designed in such a way that the operating principle remains unaffected in the front area of the suction mouth 203 and that the protective grille 210 acts as a sliding rib in the rear area.
  • a cleaning robot 100 is thus described which can comprise a floor assembly with a suction mouth 203.
  • the cleaning robot 100 comprises a removably arranged cleaning roller 102.
  • the cleaning robot 100 comprises a grid 210, which is located in front of the suction mouth 203 on the bottom side. The grid 210 is set up to prevent (elongated) objects from being drawn in by the rotating cleaning roller 102.
  • the grid 210 may comprise a meander-shaped (wire) bracket (e.g. made of stainless spring steel).
  • the bars 214, 215 of the grid 210 can, for. B. have a diameter between 0.5 mm or 0.75 mm and 1 mm.
  • the (floor) cleaning roller 102 is generally rotatably mounted in an inserted position.
  • the cleaning roller 102 typically has a drive.
  • a preferred (floor) cleaning roller 102 is a brush roller.
  • a preferred brush roller is equipped with bristles 201 that project essentially radially outward in order to convey dirt or dust from the floor 150 into the (floor) cleaning device 100.
  • a cleaning robot 100 is a cleaning device 100 which is able to move automatically relative to a surface to be cleaned or to an object to be cleaned and to clean the surface or the object in whole or in part.
  • the cleaning robot 100 is equipped with one or more cleaning devices.
  • the cleaning robot 100 can be equipped with further brushes and / or rollers, but also wipers, cloths or other cleaning devices.
  • the Cleaning robot 100 comprise a vacuum cleaner, for example a wet vacuum cleaner or a dry vacuum cleaner or a combined wet / dry vacuum cleaner.
  • a cleaning robot 100 is usually equipped with a chassis 101.
  • the chassis can be controlled, for example, by a controller that can be present in the cleaning robot 100 or outside the cleaning robot 100.
  • the controller uses data which are provided by one or more sensors 105 which, at least in part, can be present in the cleaning robot 100 or outside the cleaning robot 100.
  • Typical sensors 105 include a mechanical collision sensor, a camera, an ultrasonic sensor, an infrared sensor, a distance sensor, an acceleration sensor, and a compass.
  • a cleaning robot 100 can comprise one or more mapping means or be functionally connected to them.
  • Mapping means include, in particular, devices for recording, storing or evaluating geometric properties of the space in which the cleaning robot 100 works or is intended to work. The mapping means can advantageously contribute to a planned navigation of the cleaning robot 100 in the room.
  • Rooms can be exterior or interior spaces, for example interior spaces of buildings such as living rooms or household rooms.
  • the grille 210 may be movable from a working position (i.e., from the closed position) to a pre-open position (i.e., to a partially open position).
  • a pre-open position i.e., to a partially open position
  • the cleaning roller 102 presses the grille 210 into a partially open position.
  • the grille 210 can then be opened further by a user and latches on the Suction mouth leading edge 320.
  • the suction mouth 203 is then freely accessible and the cleaning roller 102 can be removed for maintenance work.
  • the grille 210 can be pushed by a user (in order to release the latching connection) and the grille 210 automatically swivels back into the working position (ie into the closed position) via spring force.
  • the vacuum cleaning device 100 can then be turned back onto the underside 122.
  • the grid 210 can be rotatably arranged. This enables a simple structural connection to the housing of the cleaning device 100. Furthermore, it can be ensured in a reliable manner that the grille 210 cannot become detached during operation of the cleaning device 100 and can thereby be lost.
  • the axis of rotation 220 of the grid 210 can be arranged on the inside (in particular within the suction mouth 203). As a result, moving parts of the grille 210 do not come into contact with carpet fibers when the cleaning device 100 is cleaning. Furthermore, the axis of rotation 220 of the grid 210 can be located in front of the axis of rotation 310 of the cleaning roller 102 in relation to the main translational direction of movement 110 of the cleaning device 100. It can thus be ensured that the axis of rotation 220 of the grille 210 does not lie in a region of the suction mouth 203 which is used to collect dust.
  • a spring 213 located in the pivot of the grille 210 can push and / or move or hold the grille 210 in the working position (i.e., in the closed position). It can thus be effected that the grille 210 automatically swivels again into the working position after an actuation by the user from a pre-open or fully open position (i.e. on the open or the partially open position). The end position is thus automatically reached. Furthermore, the provision of a spring 213 enables simplified operation by a user. In addition, it can be effected in this way that the grid 210 is under tension in the working position.
  • the grille 210 In the fully open position of the grille 210, or in the removal position for the cleaning roller 192, the grille 210 can have a recess 320 on a (counter) contour of the bottom plate of the cleaning device 100 or on the suction mouth on the front 203 click into place. It can thus be achieved that the grid 210 remains in a stable position during maintenance. Furthermore, no additional elements are required for fixing in the fully open position due to such a latching mechanism.
  • the segments 214 of the grid 210 aligned in the longitudinal direction can be aligned with bulges 103 which are arranged on the suction mouth edge 320 on the front side.
  • elongated objects that are transverse to the main direction of movement 110 of the vacuum cleaning device 100 such as. B. electrical cables, pins, fibers, etc., are effectively pushed over the suction mouth opening 203 and thus cannot be drawn in by the cleaning roller 102.
  • the grid 210 can have a run-up bevel 116 which, in particular, forms a quarter circle or a segment of a circle.
  • a run-up bevel 116 which, in particular, forms a quarter circle or a segment of a circle.
  • a bristle roller 102 can be cut out at the locations of the elongated lattice bars 214 or can be free of tufts of bristles. In this way, friction from the rotating bristles 201 on the grid 210 can be avoided. As a result, the drive motor of the bristle roller 102 and the energy supply are less stressed.
  • the grid 210 can be arranged halfway up or along the free bristle length of the bristle roller 102 (starting from the axis of rotation 310 of the bristle roller 102 perpendicular to the floor 150).
  • the bristles 201 of the cleaning roller 102 can protrude beyond the grille 210 by approximately half the length of the bristles 201.
  • an improved and gentle overcoming of obstacles can be achieved (e.g. in comparison to a grid that rests on the outer surface of the base plate), since a part of the bristle 201 is available until the obstacle comes into contact with the grid 210.
  • An improved dust absorption can also be achieved in this way.
  • the measures described in this document can significantly improve the safety of a cleaning device, in particular a cleaning robot 100, with regard to damage to cables or cables. Furthermore, the climbing behavior of a cleaning robot 100 can be increased. In addition, the handling of the removal of a cleaning roller 102 can be facilitated (in particular without the need to dismantle parts of the cleaning device 100).

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

Claims (14)

  1. Appareil de nettoyage (100) destiné à nettoyer une surface (150) ; dans lequel l'appareil de nettoyage (100) comprend,
    - un boîtier doté d'un canal d'aspiration et d'une bouche d'aspiration (203) se raccordant au canal d'aspiration ; dans lequel la bouche d'aspiration (203), pendant un fonctionnement de nettoyage de l'appareil de nettoyage (100), est tournée vers la surface (150) à nettoyer ;
    - un rouleau de nettoyage (102) disposé dans le canal d'aspiration, lequel est configuré pour tourner autour d'un axe de rotation (310) du rouleau de nettoyage (102) en fonctionnement de nettoyage ; et
    - une grille de protection (210) fixée de manière déplaçable sur le boîtier, laquelle est configurée, dans une position fermée, pour recouvrir la bouche d'aspiration (203) et le rouleau de nettoyage (102) au moins par endroits, et, dans une position ouverte, pour permettre un retrait du rouleau de nettoyage (102) hors du canal d'aspiration ;
    caractérisé en ce que la grille de protection (210) est réalisée pour s'enclencher dans la position ouverte de sorte que la grille de protection (210) reste dans la position ouverte.
  2. Appareil de nettoyage (100) destiné à nettoyer une surface (150) ; dans lequel l'appareil de nettoyage (100) comprend,
    - un boîtier doté d'un canal d'aspiration et d'une bouche d'aspiration (203) se raccordant au canal d'aspiration ; dans lequel la bouche d'aspiration (203), pendant un fonctionnement de nettoyage de l'appareil de nettoyage (100), est tournée vers la surface (150) à nettoyer ;
    - un rouleau de nettoyage (102) disposé dans le canal d'aspiration, lequel est configuré pour tourner autour d'un axe de rotation (310) du rouleau de nettoyage (102) en fonctionnement de nettoyage ; et
    - une grille de protection (210) fixée de manière déplaçable sur le boîtier, laquelle est configurée, dans une position fermée, pour recouvrir la bouche d'aspiration (203) et le rouleau de nettoyage (102) au moins par endroits, et, dans une position ouverte, pour permettre un retrait du rouleau de nettoyage (102) hors du canal d'aspiration ; dans lequel le rouleau de nettoyage (102) est logé de manière rotative dans un palier (202) ; dans lequel l'appareil de nettoyage (100) comprend un élément de commande (107) qui permet à un utilisateur de l'appareil de nettoyage (100) de transporter le rouleau de nettoyage (102) hors du palier (202) ; dans lequel l'appareil de nettoyage (100) est réalisé de manière à ce que le rouleau de nettoyage (102) appuie contre la grille de protection (210) lorsque le rouleau de nettoyage (102) a été transporté hors du palier (202), et caractérisé en ce qu'il fait passer la grille de protection (210) en une position partiellement ouverte ; dans lequel, dans la position partiellement ouverte, la grille de protection (210) recouvre la bouche d'aspiration (203) de manière à ce que le rouleau de nettoyage (102) soit retenu par la grille de protection (210) afin de ne pas tomber hors du canal d'aspiration ; dans lequel, dans la position partiellement ouverte, la grille de protection (210) peut être prise par un utilisateur afin de déplacer la grille de protection (210) en la position ouverte ; et dans lequel la grille de protection (210) comprend un ou plusieurs ressorts de rappel (213) qui sont réalisés pour maintenir la grille de protection (210) dans la position partiellement ouverte contre une force obtenue par un poids du rouleau de nettoyage (102).
  3. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel
    - l'appareil de nettoyage (100) est configuré pour être déplacé le long d'une direction de déplacement (110) translatoire ; et
    - la grille de protection (210) est configurée pour être pivotée autour d'un axe de pivotement (220) qui est disposé sur une arête avant (320) de la bouche d'aspiration (203) par rapport à la direction de déplacement (110) translatoire.
  4. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel
    - la grille de protection (210) comprend plusieurs segments d'axe (212) qui sont logés dans des paliers (301) sur une arête (320) de la bouche d'aspiration (203) de manière à ce que la grille de protection (210) puisse être pivotée autour des segments d'axe (212) ;
    - la grille de protection (210) comprend notamment deux, trois, quatre segments d'axe ou plus ; et
    - la grille de protection (210) comprend un ou plusieurs ressorts (213) disposés sur les segments d'axe (212), notamment des ressorts de torsion et/ou des ressorts à branches, lesquels sont configurés pour transporter la grille de protection (210) en la position fermée et/ou la maintenir dans la position fermée.
  5. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel
    - la grille de protection (210) est logée de manière rotative autour d'un axe de pivotement (220) sur une première arête (320) de la bouche d'aspiration (203) ;
    - la grille de protection (210) comprend au moins une barre longitudinale (214) qui s'étend de l'axe de pivotement (220) vers une deuxième arête opposée de la bouche d'aspiration (203) ;
    - la barre longitudinale (214) présente un segment cintré en direction du rouleau de nettoyage (102), lequel est réalisé pour s'enclencher sur la première arête (320) de la bouche d'aspiration (203) afin de maintenir la grille de protection (210) dans la position ouverte.
  6. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel
    - le rouleau de nettoyage (102) est réalisé pour tourner, pendant le fonctionnement de nettoyage de l'appareil de nettoyage (100), de manière à ce qu'un mouvement translatoire de l'appareil de nettoyage (100) le long d'une direction de déplacement (110) soit soutenu par le mouvement de rotation du rouleau de nettoyage (102) ;
    - la grille de protection (210) est réalisée de manière à ce que dans une première zone située devant l'axe de rotation (310) par rapport à la direction de déplacement (110), un effet d'entraînement du rouleau de nettoyage (102) ne soit essentiellement pas entravé par la grille de protection (210) ; et
    - la grille de protection (210) est réalisée de manière à ce que dans une deuxième zone située derrière l'axe de rotation (310) par rapport à la direction de déplacement (110), la grille de protection (210) agisse en tant que nervure de glissement pour un obstacle écrasé par l'appareil de nettoyage (100).
  7. Appareil de nettoyage (100) selon la revendication 6, dans lequel
    - la grille de protection (210) s'étend au moins en partie parallèlement à une étendue circulaire du rouleau de nettoyage (102) dans la première zone ; et
    - la grille de protection (210) s'étend essentiellement de manière rectiligne dans la deuxième zone.
  8. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel la grille de protection (210) est réalisée pour empêcher une rentrée d'objets oblongs et/ou en forme de câble dans le canal d'aspiration par le rouleau de nettoyage (102) en rotation.
  9. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel la grille de protection (210) présente une ou plusieurs barres longitudinales (214) qui s'étendent d'une arête avant (320), par rapport à une direction de déplacement (110) translatoire de l'appareil de nettoyage (100), jusqu'à une arête arrière de la bouche d'aspiration (203).
  10. Appareil de nettoyage (100) selon la revendication 9, dans lequel
    - l'une ou les plusieurs barres longitudinales (214) s'étend/s'étendent dans un plan orienté perpendiculairement à l'axe de rotation (310) du rouleau de nettoyage (102) ;
    - le rouleau de nettoyage (102) présente des poils (201) qui font saillie au moins en partie au-dessus de la grille de protection (210) pendant le fonctionnement de nettoyage de l'appareil de nettoyage (100) ; et
    - le rouleau de nettoyage (102) comprend à un ou à plusieurs endroits le long de l'axe de rotation (320) des évidements sans poils (201) pour l'une ou les plusieurs barres longitudinales (214) correspondantes.
  11. Appareil de nettoyage (100) selon l'une quelconque des revendications 9 à 10, dans lequel
    - deux barres longitudinales (214) sont reliées entre elles par paires par l'intermédiaire d'une barre transversale (215) sur l'arête arrière de la bouche d'aspiration (203) ;
    - la bouche d'aspiration (203) présente sur l'arête arrière une rainure (211) pour la grille de protection (210) ; et
    - dans la position fermée, la barre transversale (215) est disposée dans la rainure (211) de la bouche d'aspiration (203).
  12. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel
    - la grille de protection (210) comprend un étrier en forme de méandres ;
    - la grille de protection (210) comprend une séquence de barres longitudinales (214) et de barres transversales (215) perpendiculaires à celles-là ; et/ou
    - la grille de protection (210) comprend un métal ou est constituée de métal.
  13. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel
    - le boîtier comprend sur une arête (320) avant, par rapport à une direction de déplacement (110) translatoire de l'appareil de nettoyage (100), de la bouche d'aspiration (203), un ou plusieurs bombements et/ou blindages (103) en forme de tonneaux ; et
    - la grille de protection (210) comprend une ou plusieurs barres longitudinales (214) qui sont alignées avec l'un ou les plusieurs bombements et/ou blindages (103) en forme de tonneaux.
  14. Appareil de nettoyage (100) selon l'une quelconque des revendications précédentes, dans lequel l'appareil de nettoyage (100) est un robot de nettoyage qui est configuré pour naviguer de manière autonome sur la surface (150) afin de nettoyer la surface (150).
EP19188728.0A 2018-07-31 2019-07-26 Appareil de nettoyage doté d'une grille de protection mobile Active EP3622871B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018212772.7A DE102018212772B4 (de) 2018-07-31 2018-07-31 Reinigungsgerät mit einem bewegbar befestigten Schutzgitter

Publications (2)

Publication Number Publication Date
EP3622871A1 EP3622871A1 (fr) 2020-03-18
EP3622871B1 true EP3622871B1 (fr) 2021-07-21

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Application Number Title Priority Date Filing Date
EP19188728.0A Active EP3622871B1 (fr) 2018-07-31 2019-07-26 Appareil de nettoyage doté d'une grille de protection mobile

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EP (1) EP3622871B1 (fr)
DE (1) DE102018212772B4 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1903793A (en) * 1931-06-08 1933-04-18 Sweeper Vac Company Vacuum cleaner brush guard and adjusting roll assembly
US2239762A (en) 1939-03-24 1941-04-29 Westinghouse Electric & Mfg Co Suction cleaning apparatus
US2668979A (en) 1949-10-29 1954-02-16 Scott & Fetzer Co Vacuum cleaner nozzle with detachable brush carrying unit
US20010027587A1 (en) 2000-01-14 2001-10-11 Conrad Wayne Ernest Vacuum cleaner cleaning head
US6499183B1 (en) 2000-09-29 2002-12-31 Oreck Holdings, Llc Low-profile and highly-maneuverable vacuum cleaner having a headlight, a sidelight, anti-ingestion bars, side brushes, a squeegee, and a scent cartridge
JP4813433B2 (ja) * 2007-08-29 2011-11-09 シャープ株式会社 電気掃除機
JP5852890B2 (ja) 2012-01-17 2016-02-03 シャープ株式会社 回転ブラシの取付構造およびそれを備えた掃除機
JP6116134B2 (ja) 2012-04-27 2017-04-19 シャープ株式会社 吸込口体およびそれを備えた自走式掃除機
DE102017100608B4 (de) 2017-01-13 2020-06-18 Vorwerk & Co. Interholding Gmbh Bodenplatte für eine Saugdüse mit Luftleitelementen

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Publication number Publication date
DE102018212772A1 (de) 2020-02-06
EP3622871A1 (fr) 2020-03-18
DE102018212772B4 (de) 2022-11-24

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