EP3922154A1 - Suction robot and cleaning station - Google Patents
Suction robot and cleaning station Download PDFInfo
- Publication number
- EP3922154A1 EP3922154A1 EP21173463.7A EP21173463A EP3922154A1 EP 3922154 A1 EP3922154 A1 EP 3922154A1 EP 21173463 A EP21173463 A EP 21173463A EP 3922154 A1 EP3922154 A1 EP 3922154A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting wheel
- vacuum cleaner
- bristle roller
- dirt particles
- cutting
- 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.)
- Granted
Links
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Images
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
- A47L11/4041—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
- A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
-
- 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
- A47L2201/02—Docking stations; Docking operations
- A47L2201/028—Refurbishing floor engaging tools, e.g. cleaning of beating brushes
Definitions
- the invention relates to a robot vacuum cleaner and a cleaning station.
- the invention relates to a robot vacuum cleaner with a housing, which has a suction mouth on an underside for sucking in air and dirt particles and a suction chamber with a suction channel leaving the suction chamber for removing air and dirt particles, and a rotatable bristle roller arranged in the suction chamber for picking up Dirt particles that can be transported to the suction channel and a cleaning station for such robotic vacuum cleaners.
- a robot vacuum cleaner which has a knife which can engage in the bristle roller in order to be able to cut through elongated dirt particles such as hair by means of the knife.
- the elongated dirt particles are not cleaned off automatically.
- the cleaning is not sufficient because the bristle roller has poor absorption of elongated dirt particles and does not allow the elongated dirt particles to be completely removed. There is therefore still a need to effectively remove elongated dirt particles from a bristle roller of a robotic vacuum cleaner.
- the problem of the invention is thus to provide a robot vacuum cleaner and a cleaning station for robot vacuum cleaner which effectively remove elongated dirt particles from a bristle roller of the robot vacuum cleaner.
- the advantages that can be achieved with the invention are that the bristle roller is automatically cleaned of wrapped elongated dirt particles when the cutting wheel is set in rotation.
- the invention relates to a robot vacuum cleaner with a housing which has a suction mouth on an underside for sucking in air and dirt particles and a suction chamber with a suction channel leaving the suction chamber for removing air and dirt particles, and a rotatable bristle roller arranged in the suction chamber for picking up dirt particles , which can be transported away to the suction channel, and a cutting wheel which is designed to perform a rotary cutting function on elongated dirt particles located on the bristle roller when it is set in rotation.
- the elongated dirt particles are collected in one or more defined areas of the bristle roller and completely severed there so that they can be removed and / or sucked off.
- the elongated dirt particles picked up by the bristle roller are therefore comminuted in a defined collecting area and then cleaned off.
- the elongated dirt particles picked up by the bristle roller during the cleaning process do not get caught firmly in the bristles due to the arrangement of bristles and elastic lamellae. Rather, the elongated dirt particles on the bristle roller are transported in the axial direction of the bristle roller in the direction of the collecting area due to the transverse force components acting on the elongated dirt particles through the lamellae. In this collecting area, the elongated dirt particles can then be automatically comminuted and cleaned. This is accompanied by the aspect that cleaning performance is usually improved with stiffer bristles, which is achieved here due to the supporting effect of the adjacent lamellae.
- the elongated dirt particles are in particular fibers such as hair.
- the bristle roller body is cylindrical, preferably as a hollow cylinder, which has a roller axis which represents an axis of rotation.
- the transverse force component is a force component that acts parallel to the roller axis of the bristle roller body.
- the collecting area can be segmented, i.e. it can have a plurality of partial areas spaced apart from one another. Furthermore, the collecting area can have a cleaning point which enables the elongated dirt particles to be cleaned from the collecting area.
- the collecting area is designed in such a way that the elongated dirt particles that are collected in it during the cleaning process of the robotic vacuum cleaner can wind around it.
- the suction chamber is designed to build up a negative pressure which is generated during operation by means of a fan of the robotic vacuum cleaner.
- the suction chamber is open on an underside and has an elongated opening, namely the suction mouth.
- the robot vacuum cleaner also has a collecting container for collecting the dirt particles.
- the lamellae preferably have an effective lamella diameter which is defined by the outermost points of action of the lamellae and which is smaller or more preferably smaller than an effective bristle diameter of the bristles which is defined by the outermost points of action of the bristles.
- the effective diameter of the lamellae is preferably in the range from 34 mm to 44 mm.
- the effective bristle diameter is preferably in the range from 37 mm to 47 mm.
- An outer diameter of the bristle roller body is preferably in the range from 13.5 to 23.5 mm.
- the diameter of the collecting area preferably corresponds to the outer diameter of the bristle roller body.
- a helix of the bristles and a further helix of the lamellas positioned behind it have a rotation about the axis of rotation of the bristle roller body, which on one or more subsections ⁇ 90 °, preferably ⁇ 120 °, more preferably ⁇ 150 °, even more preferably equal to 180 ° is.
- the helix of ⁇ 90 ° runs on a section of the bristle roller body, which is preferably less than or equal to a distance between the ends of the bristle roller body and the cleaning point or, if no cleaning point is provided, to a plane in which a direction of the helix is reversed .
- the bristle roller body preferably has an axial section in which a direction of rotation of the rotation is reversed.
- the helix of 90 ° runs along the entire width of the bristle roller without reversing a twisting direction.
- the collecting area is preferably formed equidistant from the ends of the bristle roller body.
- the collecting area is preferably arranged at a distance from one of the two ends of the bristle roller body which is different from a further distance at which the collecting area is arranged from the other end of the bristle roller body.
- the collecting area can also be formed on one or both of the two ends of the bristle roller body. In this way, elongated dirt particles which influence the lateral bearing points of the bristle roller body can be collected and, if necessary, cleaned off.
- the bristle roller body outer diameter of the bristle roller body preferably varies at the corresponding end at which the collecting area is formed. By increasing the outer diameter of the bristle roller body at the end of the bristle roller body at which the collecting area is located, it is possible, for example, to prevent the elongated dirt particles from migrating further into the lateral bearing points.
- the collecting area can be segmented. That is, it can have several separate sub-areas.
- a partial area can be formed equidistant from both ends of the bristle roller body and further partial areas at one or both ends of the bristle roller body, whereby three different collecting area partial areas are formed.
- a jacket surface of the bristle roller body in the collecting area is preferably made of a glass fiber-free plastic.
- a glass fiber-free plastic for example, as a two-component injection-molded component made of a material such as PP (polypropylene), POM (polyoxymethylene or polyacetal), PVC (polyvinyl chloride), PE (polyethylene), PC (polycarbonate) and / or ABS (acrylonitrile butadiene) Styrene copolymer).
- the collecting point is designed to be free of bristles and lamellae. This enables good manual or automatic cleaning.
- the collecting area is preferably formed by an area of the bristle roller body to which no lamellae or bristles are attached and which is arranged axially adjacent to a further area of the bristle roller body which has lamellae and bristles.
- a width of the collecting area is preferably smaller than a sum of the width of the cutting wheel plus 5 mm.
- the collecting area or its partial area, on which the cutting wheel is arranged, is preferably formed centrally in the bristle roller body.
- the cutting wheel width is preferably in the range from 1.0 to 10.0 mm.
- the cutting wheel is preferably in contact with an outer surface, i.e. the roller surface area of the bristle roller body, and is preferably also set in rotation by its rotation in order to perform the rotary cutting function on elongated dirt particles wound around the surface area:
- a rotational speed of the brush roller in Abcurismodus, ie, when the elongated dirt particles are cleaned by it, is preferably in the range from 50 to 3000 preferably 100 to 2000 min -1.
- the cutting wheel is preferably arranged and designed in such a way that it can be actuated by rotating the bristle roller, i.e. it can be set in rotation.
- the cutting wheel is preferably in contact with the bristle roller body in such a way that it is set in rotation by rotating the bristle roller body, for example when the robotic vacuum cleaner is in operation and carries out a cleaning process and the bristle roller is rotating.
- the cutting wheel is preferably arranged and designed in such a way that it can be actuated by a user. That is, it can be moved back and forth to the bristle roller by the user.
- the cutting wheel is preferably arranged and designed in such a way that it can be actuated by an external device. That is, it can be moved back and forth from the external device to the bristle roller.
- the external device is preferably a cleaning station for robot vacuum cleaners, which is designed to empty the robot vacuum cleaner by itself picking up the dirt particles it has picked up.
- the cutting wheel is preferably constantly active when the bristle roller of the robotic vacuum cleaner is rotating.
- the cutting wheel is preferably designed to be able to act only after activation, e.g. by a mechanism in the vacuum robot or in the cleaning station.
- the cutting wheel is connected to the bristle roller via a mechanism which accordingly moves the cutting wheel to and from the bristle roller.
- the mechanism is, for example, a spring-lever mechanism.
- the mechanism can be mechanical, magnet or motor-driven.
- the cutting wheel is preferably designed without cutting and / or injury to human skin. As a result, the cutting wheel is designed in such a way that any risk to users is minimized or excluded.
- a preferred embodiment provides for a reduction in the cutting depth of the cutting wheel. Preferred configurations for this, which can be implemented individually or together, are as follows:
- the cutting wheel preferably has a large number of cutting edges. As a result, a dense accumulation of cutting edges of the cutting wheel is realized.
- the cutting wheel preferably has a Cutting contour depth in the range from 0.1 to 1.0 mm. The potential depth of cut is therefore small.
- the cutting wheel preferably has one or more chamfers, radii and / or blunt elements. The chamfers, radii and blunt elements act as safety elements and / or safety areas.
- the cutting wheel preferably has a cutting angle between surfaces of individual cutting elements in the range from 20 ° to 90 °. As a result, the cutting angle is relatively large.
- the cutting wheel is preferably arranged in a cutting wheel housing.
- the cutting wheel housing is designed to prevent and / or minimize the user reaching into the cutting wheel.
- the cutting wheel is preferably mounted on an axle, so that application of a shear force is prevented.
- the cutting wheel preferably has the basic shape of a disk.
- the cutting wheel preferably has a cutting contour provided with cutting elements.
- the cutting elements are teeth, for example, so that the cutting wheel has teeth.
- the cutting wheel is preferably designed as a spur gear.
- the spur gear can have a straight toothing, that is, an axially parallel toothing or a helical toothing.
- the teeth can be formed from several interconnected disks of different sizes or can be formed in a one-piece cutting wheel.
- the teeth preferably have a tooth depth in the range from 0.1 mm to 1.0 mm.
- the cutting wheel is designed as a disk with the cutting wheel width or thickness in the range from 1 mm to 10 mm, more preferably ⁇ 5 mm.
- the cutting wheel is preferably designed as a disk with a diameter in the range from 10 mm to 30 mm, more preferably 20 mm.
- the cutting wheel is preferably designed as a disk with a diameter that is greater than or equal to the diameter of the bristle roller and / or the bristle roller body.
- the cutting wheel is preferably designed as a disk, the axis of which defines an axis of rotation of the cutting wheel and which is freely rotatably mounted. It is preferably mounted so that it can rotate freely on a ball bearing.
- the cutting wheel is made from a metal or a ceramic.
- the cutting wheel is preferably made of free-cutting steel, machined, for example made of stainless steel.
- the cutting wheel is preferably made of tool steel, manufactured by machining.
- the cutting wheel is preferably made of hardened and ground steel. This embodiment is advantageous for a long service life of the cutting wheel.
- the cutting wheel is preferably made of hard metal and / or knife steel.
- the cutting wheel is preferably made of ceramic.
- the cutting wheel can have several possible contours.
- the cutting wheel preferably has a plurality of axially extending cutting edges on a lateral surface of the cutting wheel. It is designed, for example, as a spur gear. In a preferred Embodiment, at least one axially extending cutting edge can have a blunt cutting edge.
- the cutting wheel preferably has a multiplicity of spiral-shaped cutting edges on a circumferential surface of the cutting wheel. It is designed, for example, as a helical spur gear.
- the cutting wheel preferably has a cutting contour running in the direction of rotation.
- the cutting wheel preferably has a cutting contour made up of one or more rotary cutting blades and several safety contours in the form of chamfers, radii and / or blunt elements, for example blunt disks, which adjoin the rotary cutting blades.
- the rotary cutting blades had a cutting angle between 10 and 45 degrees. This prevents or at least reduces a dangerous cutting depth of the cutting wheel.
- the cutting wheel is arranged in the cutting wheel housing, the cutting wheel being clipped into the cutting wheel housing so that it is mounted on the cutting wheel housing.
- the storage there is preferably implemented by means of locking lugs.
- the cutting wheel is clipped into the cutting wheel housing, so that a useful area of the cutting wheel is accessible exclusively through the cutting wheel housing.
- the cutting wheel is clipped into the cutting wheel housing, so that the cutting wheel housing forms a mounting of the cutting wheel on a spring-loaded lever arm.
- the robot vacuum cleaner preferably furthermore has a safety element which comprises the cutting wheel in such a way that it prevents external intervention in the passive cutting wheel.
- the security element is preferably designed as a spring-loaded hood.
- the spring-loaded hood is preferably designed in such a way that it is moved away from the cutting wheel when the robot vacuum cleaner is docked at the cleaning station.
- the security element is preferably designed as a spring-actuated front side of the robotic vacuum cleaner.
- the front side of the robot vacuum cleaner is preferably designed in such a way that it acts against a spring.
- the security element is preferably designed as a spring or spring-and-lever system. This system is designed to be actuatable, for example, by means of wheels of the robot vacuum cleaner or an underside of the robot vacuum cleaner.
- the robot vacuum cleaner also has a robot fan, which is designed to suck off the elongated dirt particles during a suction process, so that they are sucked through the suction channel into a dust box located inside the robot vacuum cleaner to collect dust.
- the robot fan is preferably designed to suck off the formerly elongated dirt particles which have been comminuted by the cutting wheel while the bristle roller is rotating.
- the invention also relates to a cleaning station for a robot vacuum cleaner, having a docking unit for a robot vacuum cleaner, a cutting wheel and a control or regulating unit which is designed to allow a defined cutting force to act on a lateral surface of a bristle roller of a robotic vacuum cleaner located in the docking station.
- the defined cutting force is preferably in the range from 1 to 10 N.
- the cutting wheel is preferably spring-loaded. Preferred embodiments of the cutting wheel arranged in the cleaning station correspond to embodiments of the cutting wheel that are described for the robot vacuum cleaner.
- the cleaning station preferably has inclines via which the robot vacuum cleaner is forcibly guided to a platform of the cleaning station in such a way that the bristle roller, preferably the collecting area of the bristle roller, is docked to the cutting wheel in a precisely positioned manner.
- Fig. 1 shows a plan view of a robot vacuum cleaner according to the invention.
- the robot vacuum cleaner has a housing 11 which has a suction mouth (not shown) on an underside for sucking in air and dirt particles.
- the robot vacuum cleaner also has a suction chamber 15 with a suction channel 17 exiting from the suction chamber 15 for removing air and dirt particles and a rotatable bristle roller 14 arranged in the suction chamber 15 for picking up dirt particles that can be transported to the suction channel 17.
- the suction chamber 15 is designed to build up a negative pressure which is generated during operation by means of a fan 12 of the robotic vacuum cleaner.
- the suction chamber 15 is open on an underside and has an elongated opening, namely the suction mouth (not shown).
- the robot vacuum cleaner also has a dust box 23 for collecting the dirt particles.
- the bristle roller 14 has a bristle roller body 1, lamellas 2 arranged thereon, bristles 3 arranged thereon and a collecting area 4 which is bristle-free and lamellar-free and is designed to collect elongated dirt particles (not shown) by being around twist him.
- the vacuum robot is designed to be self-propelled by means of wheels 16.
- the robot vacuum cleaner also has a cutting wheel, which is not shown for the sake of clarity.
- the blower 12 When the robot vacuum cleaner is in operation, the blower 12 generates a suction flow that first flows through the suction mouth, then through the suction chamber 15, then through the suction channel 17 and then through the dust box 23. In the process, the bristle roller 14 rotates in order to assist in cleaning a substrate (not shown).
- FIG. 11 shows a cross-sectional view of the FIG Fig. 1 shown in an inactive state.
- the cutting wheel 6 is shown. It is accommodated in a cutting wheel housing 7 and is held by a movable holder 21.
- the cutting wheel 6 is arranged in the suction chamber 15 above the bristle roller 14 in such a way that it is located above the collecting area 4.
- the robot vacuum cleaner is shown in an inactive state, ie it is not performing a cleaning process, it is not in operation.
- the cutting wheel 6 is arranged at a predetermined distance from the bristle roller 14.
- FIG. 11 shows a cross-sectional view of the FIG Fig. 2 shown in an active state.
- the in Fig. 3 The robot vacuum shown corresponds to the one in Fig. 2
- the robot vacuum shown with the difference that it is shown in an active state, ie it carries out a cleaning process of the bristle roller and is in operation.
- the cutting wheel 6 is moved in the direction of the bristle roller 14 by means of the movement element 22, so that it is set in rotation by means of the rotation of the bristle roller 14.
- the cutting wheel 6 is pressed against the bristle roller with a defined spring force so that the cutting wheel rolls on the outer surface of the bristle roller. This allows for long stretches Dirt particles (not shown) located in the collecting area 4 are cut.
- the elongated dirt particles cut into smaller pieces can be transported away into the dust box 23 via the suction channel 17 in order to be collected there together with further dirt particles (not shown).
- Fig. 4 shows a partial top view of the in Fig. 2 robot vacuum cleaner shown, namely the bristle roller 14 and the cutting wheel 6 in the cutting wheel housing 7.
- the bristles of the bristle roller 14 are not shown for the sake of clarity.
- the cutting wheel 6 is arranged on the collecting area 4.
- Fig. 5 shows a partial top view of the in Fig. 3 robot vacuum cleaner shown, namely the bristle roller 14 and the cutting wheel 6 in the cutting wheel housing 7.
- the bristles of the bristle roller 14 are not shown for the sake of clarity.
- the cutting wheel 6 is arranged on the collecting area 4.
- the cutting wheel 6 is arranged and designed in such a way that it performs a rotary cutting function on elongated dirt particles 5 located in the collecting area 4.
- Fig. 6 shows a partial plan view of a further vacuum robot according to the invention.
- the robot hoover corresponds to the in Fig. 1 , wherein the bristles of the bristle roller 14 are not shown for the sake of clarity, with the difference that it has a spring-loaded lever arm 8.
- the cutting wheel 6 is clipped into the cutting wheel housing 7, so that the cutting wheel housing 7 forms a bearing for the cutting wheel 6 on the spring-loaded lever arm 8.
- Fig. 7 shows a partial plan view of in Fig. 6 shown robot vacuum along the line VII-VII.
- the robot vacuum cleaner is in operation and the bristle roller 14 rotates in the direction of the arrow.
- the collecting area 4 is arranged above the cutting wheel 6, so that the cutting wheel 6 performs a rotary cutting function on dirt particles (not shown) located in the collecting area 4.
- FIG. 11 shows a cross-sectional view of the FIG Fig. 7 shown robot vacuum along the line VIII-VIII.
- the cutting wheel 6 is accommodated in the cutting wheel housing 7.
- the cutting wheel 6 can be moved in the direction of the arrow so that it is moved towards the bristle roller (not shown).
- Fig. 9 shows a further partial plan view of the in Fig. 2 shown robot vacuum.
- the cutting wheel housing 7 has an opening 10 which is elongated.
- the opening 10 enables assembly and disassembly of the cutting wheel.
- the cutting wheel 6 projects beyond the cutting wheel housing 7 on the side facing away from the opening 10.
- Fig. 10 shows a side view of the in Fig. 9 shown cutting wheel.
- the cutting wheel 6 is designed as a disk with a diameter d which is 20 mm.
- FIG. 11 shows a cross-sectional view of the FIG Fig. 10 cutting wheel shown along the line XI-XI.
- the cutting wheel 6 has a cutting contour provided with teeth 19.
- FIG. 11 shows an enlarged partial view of the FIG Fig. 11 shown cutting wheel in area XII.
- a cutting wheel width b is 5mm.
- the cutting wheel 6 has a cutting angle a between surfaces of the individual teeth 19 of 65 °, a tooth depth b d of 0.5 mm and a tooth spacing b w between mountains formed by the teeth 19.
- FIG. 11 shows a perspective view of the FIG Fig. 10 shown cutting wheel.
- the cutting wheel 6 has the cutting contour with the multiple teeth 19.
- the cutting wheel 6 is designed as a helical spur gear.
- Fig. 14 shows a perspective view of a variant of the in Fig. 13 shown cutting wheel.
- the cutting wheel 6 has a cutting contour provided with several teeth 19.
- the cutting wheel 6 is designed as a straight-toothed spur gear.
- Fig. 15 shows a side view of the in Fig. 14 shown cutting wheel.
- the cutting wheel 6 has a diameter d of 20 mm and a tooth spacing b w between mountains formed by the teeth 19.
- FIG. 11 shows a cross-sectional view of the FIG Fig. 15 shown cutting wheel along the line XVI-XVI.
- the cutting wheel 6 has a cutting wheel width b of 5 mm.
- the cutting wheel 6 has beveled edges.
- FIG. 11 shows an enlarged partial view of the FIG Fig. 15 shown cutting wheel in area XVII.
- the cutting wheel 6 has a cutting angle a between surfaces of the individual teeth 19 of 65 ° and a respective tooth depth b d of 0.5 mm.
- Fig. 18 shows a side view of a variant of the in Fig. 14 shown cutting wheel.
- the cutting wheel 6 is designed as a disc which has a diameter d of 20 mm. Its cutting contour is provided with rotary cutting blades 26.
- the cutting wheel 6 also has blunt elements 24. The rotary cutting blades 26 and the blunt elements 24 are arranged in a holder 25.
- FIG. 11 shows a cross-sectional view of the FIG Fig. 18 shown cutting wheel along the line IXX-IXX.
- the cutting wheel 6 has a cutting wheel width b.
- the blunt elements 24 and the rotary cutting blades 26 are arranged alternately and are held together in the holder 25.
- the bracket is on one side form-fitting to the discs, whereby after the elements 24 have been mounted on the rear side by widening the collar, a further form fit to the panes is formed.
- FIG. 11 shows an enlarged partial view of the FIG Fig. 19 shown cutting wheel in area XX.
- the cutting wheel 6 has a cutting angle a between surfaces of the individual rotary cutting blades 19 of 25 ° and a respective tooth depth b d of 0.5 mm, the tooth depth b d being a distance between one end of the rotary cutting blade 26 and one end of the adjacent blunt element 24 is.
- Fig. 21 shows a cross-sectional view of a cleaning station according to the invention with a docked vacuum robot.
- the in Fig. 21 The robot vacuum shown corresponds to the one in Fig. 1 shown saurobot. To describe the in Fig. 21 The robot vacuum shown is therefore on Fig. 1 referenced.
- the cleaning station has a cleaning station housing 30, a cutting wheel 6, which is arranged in a cutting wheel housing 7, and a lever arm 8.
- the cleaning station is in an emptying mode in which it empties the robot vacuum by picking up dirt particles (not shown) collected in the dust box 23.
- the lever arm 8 is designed to arrange the cutting wheel 6 in the emptying module in such a way that it performs a rotary cutting function on the bristle roller 14 rotating in the emptying mode on elongated dirt particles (not shown) located on the collecting area 4 and is set in rotation by the rotation of the bristle roller 4 .
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- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
Die Erfindung betrifft einen Saugroboter mit einem Gehäuse (11), welches an einer Unterseite einen Saugmund (18) zum Einsaugen von Luft und Schmutzpartikeln und einen Saugraum (15) mit einem aus dem Saugraum (15) abgehenden Saugkanal (17) zum Abtransportieren von Luft und Schmutzpartikeln aufweist, und einer im Saugraum (15) angeordneten drehbaren Borstwalze (14) zum Aufnehmen von Schmutzpartikeln, die zum Saugkanal (17) abtransportierbar sind, und einem Schneidrad (6), das ausgebildet ist, auf sich auf der Borstwalze (14) befindende langgestreckte Schmutzpartikel (5) eine Rollschneidfunktion auszuüben, wenn es in Drehung versetzt wird. Ferner betrifft die Erfindung eine Reinigungsstation für einen Saugroboter, aufweisend eine Andockeinheit für einen Saugroboter, ein Schneidrad (6) und eine Steuer- oder Regeleinheit, die ausgebildet ist, auf eine Mantelfläche einer Borstwalze eines sich in der Andockstation befindenden Saugroboters eine definierte Schneidkraft wirken zu lassen.The invention relates to a robot vacuum cleaner with a housing (11) which has a suction mouth (18) on an underside for sucking in air and dirt particles and a suction chamber (15) with a suction channel (17) extending from the suction chamber (15) for transporting air away and has dirt particles, and a rotatable bristle roller (14) arranged in the suction chamber (15) for picking up dirt particles which can be transported away to the suction channel (17), and a cutting wheel (6) which is formed on itself on the bristle roller (14) located elongated dirt particles (5) exercise a rotary cutting function when it is set in rotation. The invention also relates to a cleaning station for a robot vacuum cleaner, having a docking unit for a robot vacuum cleaner, a cutting wheel (6) and a control or regulating unit which is designed to apply a defined cutting force to a surface of a bristle roller of a robot vacuum cleaner located in the docking station leave.
Description
Die Erfindung betrifft einen Saugroboter und eine Reinigungsstation. Insbesondere betrifft die Erfindung einen Saugroboter mit einem Gehäuse, welches an einer Unterseite einen Saugmund zum Einsaugen von Luft und Schmutzpartikeln und einen Saugraum mit einem aus dem Saugraum abgehenden Saugkanal zum Abtransportieren von Luft und Schmutzpartikeln aufweist, und einer im Saugraum angeordneten drehbaren Borstwalze zum Aufnehmen von Schmutzpartikeln, die zum Saugkanal abtransportierbar sind, und eine Reinigungsstation für derartige Saugroboter.The invention relates to a robot vacuum cleaner and a cleaning station. In particular, the invention relates to a robot vacuum cleaner with a housing, which has a suction mouth on an underside for sucking in air and dirt particles and a suction chamber with a suction channel leaving the suction chamber for removing air and dirt particles, and a rotatable bristle roller arranged in the suction chamber for picking up Dirt particles that can be transported to the suction channel and a cleaning station for such robotic vacuum cleaners.
Bei einem derartigen Saugroboter besteht das Problem, dass auf der Borstwalze aufgenommene langgestreckte Schmutzpartikel wie Haare, sich ungünstig um die Borstwalze wickeln und somit eine Reinigung der Borstwalze durch den Nutzer häufig durchgeführt werden muss, welche zudem oft aufwendig und unhygienisch ist.In such a vacuum robot there is the problem that elongated dirt particles such as hair, which are picked up on the bristle roller, wrap themselves unfavorably around the bristle roller and thus the user often has to clean the bristle roller, which is also often time-consuming and unhygienic.
Aus der
Der Erfindung stellt sich somit das Problem, einen Saugroboter und eine Reinigungsstation für Saugroboter bereitzustellen, welche langgestreckte Schmutzpartikel von einer Borstwalze des Saugroboters effektiv entfernen.The problem of the invention is thus to provide a robot vacuum cleaner and a cleaning station for robot vacuum cleaner which effectively remove elongated dirt particles from a bristle roller of the robot vacuum cleaner.
Erfindungsgemäß wird dieses Problem durch einen Saugroboter mit den Merkmalen des Patentanspruchs 1 und eine Reinigungsstation mit den Merkmalen des Patentanspruchs 11 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a robot vacuum cleaner with the features of
Die mit der Erfindung erreichbaren Vorteile bestehen darin, dass die Borstwalze von umwickelten langgestreckten Schmutzpartikeln automatisch gereinigt wird, wenn das Schneidrad in Drehung versetzt wird.The advantages that can be achieved with the invention are that the bristle roller is automatically cleaned of wrapped elongated dirt particles when the cutting wheel is set in rotation.
Die Erfindung betrifft einen Saugroboter mit einem Gehäuse, welches an einer Unterseite einen Saugmund zum Einsaugen von Luft und Schmutzpartikeln und einen Saugraum mit einem aus dem Saugraum abgehenden Saugkanal zum Abtransportieren von Luft und Schmutzpartikeln aufweist, und einer im Saugraum angeordneten drehbaren Borstwalze zum Aufnehmen von Schmutzpartikeln, die zum Saugkanal abtransportierbar sind, und einem Schneidrad, das ausgebildet ist, auf sich auf der Borstwalze befindende langgestreckte Schmutzpartikel eine Rollschneidfunktion auszuüben, wenn es in Drehung versetzt wird.The invention relates to a robot vacuum cleaner with a housing which has a suction mouth on an underside for sucking in air and dirt particles and a suction chamber with a suction channel leaving the suction chamber for removing air and dirt particles, and a rotatable bristle roller arranged in the suction chamber for picking up dirt particles , which can be transported away to the suction channel, and a cutting wheel which is designed to perform a rotary cutting function on elongated dirt particles located on the bristle roller when it is set in rotation.
In einer bevorzugten Ausführungsform weist die Borstwalze auf:
- einen Borstwalzenkörper,
- einen Sammelbereich, welcher derart ausgebildet ist, dass sich bei Betrieb langgestreckte Schmutzpartikel an und/oder in ihm ansammeln,
- mehrere Borsten, welche mit dem Borstwalzenkörper fest verbunden sind,
- elastische Lamellen, welche mit dem Borstwalzenkörper fest verbunden sind, welche im Borstwalzenquerschnitt in Umfangrichtung bezogen auf die Walzendrehrichtung in einem vorbestimmten Abstand hinter den Borsten positioniert sind und welche eine auf die langgestreckten Schmutzpartikel einwirkende Querkraftkomponente in einer axialer Richtung der Borstwalze aufweisen, die ausreichend ist, die langestreckten Schmutzpartikel in den Sammelbereich zu transportieren, wobei das Schneidrad derart angeordnet und ausgebildet ist, die Rollschneidfunktion auf sich im Sammelbereich befindende langgestreckte Schmutzpartikel auszuüben, wenn es in Drehung versetzt wird.
- a bristle roller body,
- a collecting area which is designed in such a way that elongated dirt particles collect on and / or in it during operation,
- several bristles, which are firmly connected to the bristle roller body,
- elastic lamellas, which are firmly connected to the bristle roller body, which are positioned in the bristle roller cross-section in the circumferential direction in relation to the roller rotation direction at a predetermined distance behind the bristles and which have a transverse force component acting on the elongated dirt particles in an axial direction of the bristle roller, which is sufficient, to transport the elongated dirt particles into the collecting area, the cutting wheel being arranged and designed in such a way that it performs the rotary cutting function on elongated dirt particles located in the collecting area when it is set in rotation.
So werden die langgestreckten Schmutzpartikel in einem oder mehreren definierten Bereichen der Borstwalze angesammelt und dort vollständig durchtrennt, so dass sie entfernt und/oder abgesaugt werden können. Die von der Borstwalze aufgenommenen langgestreckten Schmutzpartikel werden daher an einem definierten Sammelbereich zerkleinert und anschließend abgereinigt.The elongated dirt particles are collected in one or more defined areas of the bristle roller and completely severed there so that they can be removed and / or sucked off. The elongated dirt particles picked up by the bristle roller are therefore comminuted in a defined collecting area and then cleaned off.
Die während des Reinigungsvorgangs von der Borstwalze aufgenommenen langgestreckten Schmutzpartikel verfangen durch die Anordnung von Borsten und elastischen Lamellen nicht fest in den Borsten. Vielmehr werden die langgestreckten Schmutzpartikel auf der Borstwalze aufgrund der durch die Lamellen auf die langgestreckten Schmutzpartikel einwirkende Querkraftkomponente in axialer Richtung der Borstwalze in Richtung zu dem Sammelbereich transportiert. In diesem Sammelbereich kann anschließend automatisierte Zerkleinerung und Abreinigung der langgestreckten Schmutzpartikel erfolgen. Einhergehend ist der Aspekt, dass sich eine Reinigungsleistung üblicherweise bei steiferen Borsten verbessert, was hier aufgrund der stützenden Wirkung der angrenzend angeordneten Lamellen erzielt wird.The elongated dirt particles picked up by the bristle roller during the cleaning process do not get caught firmly in the bristles due to the arrangement of bristles and elastic lamellae. Rather, the elongated dirt particles on the bristle roller are transported in the axial direction of the bristle roller in the direction of the collecting area due to the transverse force components acting on the elongated dirt particles through the lamellae. In this collecting area, the elongated dirt particles can then be automatically comminuted and cleaned. This is accompanied by the aspect that cleaning performance is usually improved with stiffer bristles, which is achieved here due to the supporting effect of the adjacent lamellae.
Bei den langestreckten Schmutzpartikeln handelt es sich insbesondere um Fasern wie beispielsweise Haare. Der Borstwalzenkörper ist zylinderförmig, bevorzugt als Hohlzylinder, ausgebildet, welcher eine Walzenachse aufweist, die eine Drehachse darstellt. Die Querkraftkomponente ist eine Kraftkomponente, die parallel zu der Walzenachse des Borstwalzenkörpers wirkt. Der Sammelbereich kann segmentiert ausgebildet sein, d.h. mehrere voneinander beabstandete Teilbereiche aufweisen. Ferner kann der Sammelbereich eine Abreinigungsstelle aufweisen, welche ein Abreinigen der langgestreckten Schmutzpartikel von dem Sammelbereich ermöglicht. Der Sammelbereich ist derart ausgebildet, dass sich die langgestreckten Schmutzpartikel, die während des Reinigungsvorgangs des Saugroboters in ihm gesammelt werden, sich um ihn winden können. Der Saugraum ist zum Aufbauen eines Unterdruckes ausgebildet, der bei Betrieb mittels eines Gebläses des Saugroboters erzeugt wird. Der Saugraum ist an einer Unterseite offen und weist eine längliche Öffnung auf, nämlich den Saugmund. Ferner weist der Saugroboter einen Sammelbehälter zum Sammeln der Schmutzpartikel auf.The elongated dirt particles are in particular fibers such as hair. The bristle roller body is cylindrical, preferably as a hollow cylinder, which has a roller axis which represents an axis of rotation. The transverse force component is a force component that acts parallel to the roller axis of the bristle roller body. The collecting area can be segmented, i.e. it can have a plurality of partial areas spaced apart from one another. Furthermore, the collecting area can have a cleaning point which enables the elongated dirt particles to be cleaned from the collecting area. The collecting area is designed in such a way that the elongated dirt particles that are collected in it during the cleaning process of the robotic vacuum cleaner can wind around it. The suction chamber is designed to build up a negative pressure which is generated during operation by means of a fan of the robotic vacuum cleaner. The suction chamber is open on an underside and has an elongated opening, namely the suction mouth. The robot vacuum cleaner also has a collecting container for collecting the dirt particles.
Bevorzugt weisen die Lamellen einen Lamellen-Wirkdurchmesser auf, welcher durch äußerste Wirkpunkte der Lamellen definiert ist und welcher kleiner oder gleich bevorzugter kleiner als ein Borsten-Wirkdurchmesser der Borsten ist, welcher durch äußerste Wirkpunkte der Borsten definiert ist. Somit wird eine Aufnahme langgestreckter Schmutzpartikel bei Betrieb des Saugroboters von einem zu saugenden Untergrund wie einem Boden weiterhin ermöglicht. Der Lamellen-Wirkdurchmesser liegt bevorzugt im Bereich von 34 mm bis 44 mm. Der Borsten-Wirkdurchmesser liegt bevorzugt im Bereich von 37 mm bis 47 mm. Ein Außendurchmesser des Borstwalzenkörpers liegt bevorzugt im Bereich von 13,5 bis 23,5 mm. Der Durchmesser des Sammelbereichs entspricht bevorzugt dem Außendurchmesser des Borstwalzenkörpers.The lamellae preferably have an effective lamella diameter which is defined by the outermost points of action of the lamellae and which is smaller or more preferably smaller than an effective bristle diameter of the bristles which is defined by the outermost points of action of the bristles. Thus, when the robot vacuum cleaner is in operation, it is still possible to pick up elongated dirt particles from a surface to be vacuumed, such as a floor. The effective diameter of the lamellae is preferably in the range from 34 mm to 44 mm. The effective bristle diameter is preferably in the range from 37 mm to 47 mm. An outer diameter of the bristle roller body is preferably in the range from 13.5 to 23.5 mm. The diameter of the collecting area preferably corresponds to the outer diameter of the bristle roller body.
In einer bevorzugten Ausführungsform weisen eine Helix der Borsten und eine weitere Helix der dahinter positionierten Lamellen eine Verdrehung um die Drehachse des Borstwalzenkörpers auf, welche auf einem oder mehreren Teilabschnitten ≥90°, bevorzugt ≥ 120°, bevorzugter ≥ 150°, noch bevorzugter gleich 180° ist. Die Helix von ≥90° verläuft je auf einem Teilabschnitt des Borstwalzenkörpers, welcher bevorzugt kleiner oder gleich zu einem Abstand der Enden des Borstwalzenkörpers zu der Abreinigungsstelle oder, wenn keine Abreinigungsstelle vorgesehen ist, zu einer Ebene ist, in welcher sich eine Richtung der Helix umkehrt. Bevorzugt weist der Borstwalzenkörper einen Achsabschnitt auf, in welchem sich eine Verdreh-Richtung der Verdrehung umkehrt. In einer alternativen Ausführungsform verläuft die Helix von ≥90° entlang der gesamten Breite der Borstenwalze ohne eine Verdreh-Richtung umzukehren.In a preferred embodiment, a helix of the bristles and a further helix of the lamellas positioned behind it have a rotation about the axis of rotation of the bristle roller body, which on one or more subsections ≥90 °, preferably ≥ 120 °, more preferably ≥ 150 °, even more preferably equal to 180 ° is. The helix of ≥90 ° runs on a section of the bristle roller body, which is preferably less than or equal to a distance between the ends of the bristle roller body and the cleaning point or, if no cleaning point is provided, to a plane in which a direction of the helix is reversed . The bristle roller body preferably has an axial section in which a direction of rotation of the rotation is reversed. In an alternative embodiment, the helix of 90 ° runs along the entire width of the bristle roller without reversing a twisting direction.
Der Sammelbereich ist bevorzugt äquidistant zu den Enden des Borstwalzenkörpers ausgebildet. Alternativ bevorzugt ist der Sammelbereich zu einem der beiden Enden des Borstwalzenkörpers in einem Abstand angeordnet, der verschieden ist von einem weiteren Abstand, in dem der Sammelbereich zu dem anderen Ende des Borstwalzenkörpers angeordnet ist. Der Sammelbereich kann auch an einem oder beiden der beiden Enden des Borstwalzenkörpers ausgebildet sein. So können langgestreckte Schmutzpartikel, welche die seitlichen Lagerstellen des Borstwalzenkörpers beeinflussen gesammelt und ggf. abgereinigt werden. Bevorzugt variiert der Borstwalzenkörper-Außendurchmesser des Borstwalzenkörpers an dem entsprechenden Ende, an dem der Sammelbereich ausgebildet ist. Durch eine Erhöhung des Borstwalzenkörper-Außendurchmessers an dem Ende des Borstwalzenkörpers, an dem sich der Sammelbereich befindet, kann beispielsweise erwirkt werden, dass die langgestreckten Schmutzpartikel nicht weiter in die seitlichen Lagerstellen wandern.The collecting area is preferably formed equidistant from the ends of the bristle roller body. Alternatively, the collecting area is preferably arranged at a distance from one of the two ends of the bristle roller body which is different from a further distance at which the collecting area is arranged from the other end of the bristle roller body. The collecting area can also be formed on one or both of the two ends of the bristle roller body. In this way, elongated dirt particles which influence the lateral bearing points of the bristle roller body can be collected and, if necessary, cleaned off. The bristle roller body outer diameter of the bristle roller body preferably varies at the corresponding end at which the collecting area is formed. By increasing the outer diameter of the bristle roller body at the end of the bristle roller body at which the collecting area is located, it is possible, for example, to prevent the elongated dirt particles from migrating further into the lateral bearing points.
Der Sammelbereich kann segmentiert ausgebildet sein. D.h., er kann mehrere voneinander getrennte Teilbereiche aufweisen. Beispielsweise können ein Teilbereich äquidistant zu beiden Enden des Borstwalzenkörpers und weitere Teilbereiche an einem oder beiden Enden des Borstwalzenkörpers ausgebildet sein, wodurch drei verschiedene Sammelbereich-Teilbereiche ausgebildet sind.The collecting area can be segmented. That is, it can have several separate sub-areas. For example, a partial area can be formed equidistant from both ends of the bristle roller body and further partial areas at one or both ends of the bristle roller body, whereby three different collecting area partial areas are formed.
Bevorzugt ist eine Mantelfläche des Borstwalzenkörpers im Sammelbereich aus einem glasfaserfreien Kunststoff ausgebildet. Beispielsweise ist sie als Zwei-Komponenten-Spritzguss-Komponente aus einem Werkstoff wie PP (Polypropylen), POM (Polyoxymethylen bzw. Polyacetal), PVC (Polyvinylchlorid), PE (Polyethylen), PC (Polycarbonat) und/oder ABS (Acrylnitril-Butadien-Styrol-Copolymer) gebildet.A jacket surface of the bristle roller body in the collecting area is preferably made of a glass fiber-free plastic. For example, as a two-component injection-molded component made of a material such as PP (polypropylene), POM (polyoxymethylene or polyacetal), PVC (polyvinyl chloride), PE (polyethylene), PC (polycarbonate) and / or ABS (acrylonitrile butadiene) Styrene copolymer).
In einer bevorzugten Ausführungsform ist die Sammelstelle Borsten- und Lamellen-frei ausgebildet. Dadurch wird eine gute manuelle oder automatische Abreinigung ermöglicht. Der Sammelbereich ist bevorzugt durch einen Bereich des Borstwalzenkörper ausgebildet, an dem keine Lamellen oder Borsten befestigt sind und der axial benachbart zu einem weiteren Bereich des Borstwalzenkörpers angeordnet ist, der Lamellen und Borsten aufweist. In einer alternativen Ausführungsform ist es denkbar die Sammelstelle borstenfrei mit einer Lamelle auszubilden. Die Anordnung von Lamellen in der Sammelstelle erleichtert deren manuelle Reinigung.In a preferred embodiment, the collecting point is designed to be free of bristles and lamellae. This enables good manual or automatic cleaning. The collecting area is preferably formed by an area of the bristle roller body to which no lamellae or bristles are attached and which is arranged axially adjacent to a further area of the bristle roller body which has lamellae and bristles. In an alternative embodiment, it is conceivable to design the collection point with a lamella free from bristles. The arrangement of lamellas in the collection point facilitates their manual cleaning.
Eine Breite des Sammelbereichs ist vorzugsweise kleiner als eine Summe aus Schneidradbreite plus 5mm. Bevorzugt ist der Sammelbereich oder dessen Teilbereich, an dem das Schneidrad angeordnet ist, mittig in dem Borstwalzenkörper ausgebildet. Die Schneidradbreite liegt bevorzugt im Bereich von 1,0 bis 10,0 mm.A width of the collecting area is preferably smaller than a sum of the width of the cutting wheel plus 5 mm. The collecting area or its partial area, on which the cutting wheel is arranged, is preferably formed centrally in the bristle roller body. The cutting wheel width is preferably in the range from 1.0 to 10.0 mm.
Das Schneidrad ist bevorzugt mit einer Außenfläche d.h.Walzenmantelfläche des Borstwalzenkörpers in Kontakt und wird bevorzugt durch dessen Drehung ebenfalls in Drehung versetzt, um die Rollschneidfunktion auf um die Mantelfläche gewickelte langgestreckte Schmutzpartikel auszuüben:
Eine Drehzahl der Borstwalze im Abreinigungsmodus, d.h., wenn die langgestreckten Schmutzpartikel von ihr abgereinigt werden, ist bevorzugt im Bereich von 50 bis 3000 bevorzugter 100 bis 2000 min-1.The cutting wheel is preferably in contact with an outer surface, i.e. the roller surface area of the bristle roller body, and is preferably also set in rotation by its rotation in order to perform the rotary cutting function on elongated dirt particles wound around the surface area:
A rotational speed of the brush roller in Abreinigungsmodus, ie, when the elongated dirt particles are cleaned by it, is preferably in the range from 50 to 3000 preferably 100 to 2000 min -1.
Bevorzugt ist das Schneidrad derart angeordnet und ausgebildet, dass es mittels Drehung der Borstwalze betätigbar ist d.h. in Drehung versetzbar ist. Bevorzugt ist das Schneidrad derart in Kontakt mit dem Borstwalzenkörper, dass es durch Drehung des Borstwalzenkörpers in Drehung versetzt wird, beispielsweise wenn der Saugroboter in Betrieb ist und einen Reinigungsvorgang durchführt und sich die Borstwalze dreht.The cutting wheel is preferably arranged and designed in such a way that it can be actuated by rotating the bristle roller, i.e. it can be set in rotation. The cutting wheel is preferably in contact with the bristle roller body in such a way that it is set in rotation by rotating the bristle roller body, for example when the robotic vacuum cleaner is in operation and carries out a cleaning process and the bristle roller is rotating.
Alternativ oder zusätzlich bevorzugt ist das Schneidrad derart angeordnet und ausgebildet, dass es von einem Nutzer betätigbar ist. D.h., es kann von dem Nutzer zu der Borstwalze hin- und wegbewegt werden.As an alternative or in addition, the cutting wheel is preferably arranged and designed in such a way that it can be actuated by a user. That is, it can be moved back and forth to the bristle roller by the user.
Alternativ oder zusätzlich bevorzugt ist das Schneidrad derart angeordnet und ausgebildet, dass es von einer externen Vorrichtung betätigbar ist. D.h., es kann von der externen Vorrichtung zu der Borstwalze hin- und wegbewegt werden. Die externe Vorrichtung ist bevorzugt eine Reinigungsstation für Saugroboter, die ausgebildet ist, den Saugroboter zu entleeren, indem sie die von ihm aufgenommenen Schmutzpartikel selber aufnimmt.Alternatively or additionally, the cutting wheel is preferably arranged and designed in such a way that it can be actuated by an external device. That is, it can be moved back and forth from the external device to the bristle roller. The external device is preferably a cleaning station for robot vacuum cleaners, which is designed to empty the robot vacuum cleaner by itself picking up the dirt particles it has picked up.
Bevorzugt ist das Schneidrad konstant aktiv, wenn die Borstwalze des Saugroboters rotiert. Alternativ bevorzugt ist das Schneidrad ausgebildet, nur nach Aktivierung z.B. durch einen Mechanismus in dem Saugroboter oder in der Reinigungsstation wirken zu können. Beispielsweise ist das Schneidrad über einen Mechanismus mit der Borstwalze verbunden, der das Schneidrad dementsprechend zur Borstwalze hin- und wegbewegt. Der Mechanismus ist beispielsweise ein Feder-Hebel-Mechanismus. Der Mechanismus kann mechanisch ausgebildet, magnet- oder motorbetrieben sein.The cutting wheel is preferably constantly active when the bristle roller of the robotic vacuum cleaner is rotating. Alternatively, the cutting wheel is preferably designed to be able to act only after activation, e.g. by a mechanism in the vacuum robot or in the cleaning station. For example, the cutting wheel is connected to the bristle roller via a mechanism which accordingly moves the cutting wheel to and from the bristle roller. The mechanism is, for example, a spring-lever mechanism. The mechanism can be mechanical, magnet or motor-driven.
Bevorzugt ist das Schneidrad schnitt- und/oder verletzungslos für menschliche Haut ausgebildet. Dadurch ist das Schneidrad konstruktiv so gestaltet, dass eine Gefährdung für Nutzer minimiert oder ausgeschlossen ist. Eine bevorzugte Ausführungsform sieht eine Reduktion der Schnitttiefe des Schneidrades vor. Bevorzugte Ausgestaltungen hierzu, die einzeln oder zusammen realisiert sein können, sind folgendermaßen: Das Schneidrad weist bevorzugt eine Vielzahl von Schnittkanten auf. Dadurch wird eine dichte Anhäufung von Schnittkanten des Schneidrads realisiert. Das Schneidrad weist bevorzugt eine Schneidkonturtiefe im Bereich von 0,1 bis 1,0 mm auf. Die potenzielle Schnitttiefe ist daher gering. Das Schneidrad weist bevorzugt eine oder mehrere Fasen, Radien und/oder stumpfe Elemente auf. Die Fasen, Radien, stumpfen Elemente wirken als Sicherheitselemente und/oder Sicherheitsbereiche. Das Schneidrad weist bevorzugt einen Schneidwinkel zwischen Flächen von einzelnen Schneidelementen im Bereich von 20° bis 90° auf. Dadurch ist der Schneidwinkel relativ groß. Das Schneidrad ist bevorzugt in einem Schneidrad-Gehäuse angeordnet. Das Schneidrad-Gehäuse ist ausgebildet, ein Eingreifen des Nutzers in das Schneidrad zu verhindern und/oder zu minimieren. Das Schneidrad ist bevorzugt auf einer Achse gelagert, so dass ein Aufbringen einer Scherkraft verhindert wird.The cutting wheel is preferably designed without cutting and / or injury to human skin. As a result, the cutting wheel is designed in such a way that any risk to users is minimized or excluded. A preferred embodiment provides for a reduction in the cutting depth of the cutting wheel. Preferred configurations for this, which can be implemented individually or together, are as follows: The cutting wheel preferably has a large number of cutting edges. As a result, a dense accumulation of cutting edges of the cutting wheel is realized. The cutting wheel preferably has a Cutting contour depth in the range from 0.1 to 1.0 mm. The potential depth of cut is therefore small. The cutting wheel preferably has one or more chamfers, radii and / or blunt elements. The chamfers, radii and blunt elements act as safety elements and / or safety areas. The cutting wheel preferably has a cutting angle between surfaces of individual cutting elements in the range from 20 ° to 90 °. As a result, the cutting angle is relatively large. The cutting wheel is preferably arranged in a cutting wheel housing. The cutting wheel housing is designed to prevent and / or minimize the user reaching into the cutting wheel. The cutting wheel is preferably mounted on an axle, so that application of a shear force is prevented.
Das Schneidrad weist bevorzugt eine Grundform einer Scheibe auf. Das Schneidrad weist bevorzugt eine Schneidelementen versehene Schneidkontur auf. Die Schneidelemente sind beispielsweise Zähne, so dass das Schneidrad eine Verzahnung aufweist. Bevorzugt ist das Schneidrad als Stirnrad ausgebildet Das Stirnrad kann eine Geradverzahnung also eine achsenparallele Verzahnung oder eine Schrägverzahnung aufweisen. Die Zähne können aus mehreren miteinander verbundenen Scheiben unterschiedlicher Größen gebildet sein oder in einem einstückigen Schneidrad ausgebildet sein. Bevorzugt weisen die Zähne eine Zahntiefe im Bereich von 0,1 mm bis 1,0 mm auf. In einer bevorzugten Ausführungsform ist das Schneidrad als Scheibe mit der Schneidradbreite bzw. Stärke im Bereich von 1 mm bis 10 mm, bevorzugter < 5 mm, ausgebildet. Alternativ oder zusätzlich bevorzugt ist das Schneidrad als Scheibe mit einem Durchmesser im Bereich von 10mm bis 30mm, bevorzugter 20 mm ausgebildet. Alternativ oder zusätzlich bevorzugt ist das Schneidrad als Scheibe mit einem Durchmesser ausgebildet, der größer oder gleich dem Durchmesser der Borstwalze und/oder des Borstwalzenkörpers ist. Alternativ oder zusätzlich bevorzugt ist das Schneidrad als Scheibe ausgebildet, deren Achse eine Drehachse des Schneidrades definiert und die frei drehbar gelagert ist. Bevorzugt ist sie frei drehbar auf einem Kugellager gelagert.The cutting wheel preferably has the basic shape of a disk. The cutting wheel preferably has a cutting contour provided with cutting elements. The cutting elements are teeth, for example, so that the cutting wheel has teeth. The cutting wheel is preferably designed as a spur gear. The spur gear can have a straight toothing, that is, an axially parallel toothing or a helical toothing. The teeth can be formed from several interconnected disks of different sizes or can be formed in a one-piece cutting wheel. The teeth preferably have a tooth depth in the range from 0.1 mm to 1.0 mm. In a preferred embodiment, the cutting wheel is designed as a disk with the cutting wheel width or thickness in the range from 1 mm to 10 mm, more preferably <5 mm. Alternatively or in addition, the cutting wheel is preferably designed as a disk with a diameter in the range from 10 mm to 30 mm, more preferably 20 mm. Alternatively or in addition, the cutting wheel is preferably designed as a disk with a diameter that is greater than or equal to the diameter of the bristle roller and / or the bristle roller body. As an alternative or in addition, the cutting wheel is preferably designed as a disk, the axis of which defines an axis of rotation of the cutting wheel and which is freely rotatably mounted. It is preferably mounted so that it can rotate freely on a ball bearing.
In einer bevorzugten Ausführungsform ist das Schneidrad aus einem Metall oder einer Keramik ausgebildet. Bevorzugt ist das Schneidrad aus Automatenstahl, zerspanend gefertigt, beispielsweide Edelstahl ausgebildet. Alternativ bevorzugt ist das Schneidrad aus Werkzeugstahl, zerspanend gefertigt, ausgebildet. Alternativ bevorzugt ist das Schneidrad aus gehärtetem und geschliffenem Stahl ausgebildet. Diese Ausführungsform ist für eine hohe Lebensdauer des Schneidrads vorteilhaft. Alternativ bevorzugt ist das Schneidrad aus Hartmetall und/oder Messerstahl ausgebildet. Alternativ bevorzugt ist das Schneidrad aus Keramik ausgebildet.In a preferred embodiment, the cutting wheel is made from a metal or a ceramic. The cutting wheel is preferably made of free-cutting steel, machined, for example made of stainless steel. Alternatively, the cutting wheel is preferably made of tool steel, manufactured by machining. Alternatively, the cutting wheel is preferably made of hardened and ground steel. This embodiment is advantageous for a long service life of the cutting wheel. Alternatively, the cutting wheel is preferably made of hard metal and / or knife steel. Alternatively, the cutting wheel is preferably made of ceramic.
Das Schneidrad kann mehrere mögliche Konturen aufweisen. Bevorzugt weist das Schneidrad eine Vielzahl an axial verlaufenden Schneiden auf einer Mantelfläche des Schneidrades auf. Es ist beispielsweise als Stirnrad ausgebildet. In einer bevorzugten Ausführungsform kann mindestens eine axial verlaufende Schneide eine stumpfe Schneide aufweisen. Alternativ bevorzugt weist das Schneidrad eine Vielzahl an spiralförmig verlaufenden Schneiden auf einer Mantelfläche des Schneidrades auf. Es ist beispielsweise als schrägverzahntes Stirnrad ausgebildet. Alternativ bevorzugt weist das Schneidrad eine in die Drehrichtung verlaufende Schneidkontur auf. Alternativ bevorzugt weist das Schneidrad eine Schneidkontur aus einer oder mehreren Rollschneidklingen und mehreren Sicherheitskonturen in Form von Fasen, Radien und/oder stumpfen Elementen beispielsweise stumpfe Scheiben auf, welche an die Rollschneidklingen angrenzen. Dabei wiesen die Rollschneidklingen einen Schneidwinkel zwischen 10 und 45 Grad auf. Dadurch wird eine gefährdende Schnitttiefe des Schneidrads verhindert oder zumindest reduziert.The cutting wheel can have several possible contours. The cutting wheel preferably has a plurality of axially extending cutting edges on a lateral surface of the cutting wheel. It is designed, for example, as a spur gear. In a preferred Embodiment, at least one axially extending cutting edge can have a blunt cutting edge. As an alternative, the cutting wheel preferably has a multiplicity of spiral-shaped cutting edges on a circumferential surface of the cutting wheel. It is designed, for example, as a helical spur gear. Alternatively, the cutting wheel preferably has a cutting contour running in the direction of rotation. Alternatively, the cutting wheel preferably has a cutting contour made up of one or more rotary cutting blades and several safety contours in the form of chamfers, radii and / or blunt elements, for example blunt disks, which adjoin the rotary cutting blades. The rotary cutting blades had a cutting angle between 10 and 45 degrees. This prevents or at least reduces a dangerous cutting depth of the cutting wheel.
In einer bevorzugten Ausführungsform ist das Schneidrad in dem Schneidrad-Gehäuse angeordnet, wobei das Schneidrad in dem Schneidrad-Gehäuse eingeklipst ist, so dass es auf dem Schneidrad-Gehäuse gelagert ist. Die Lagerung dort ist bevorzugt mittels Rastnasen realisiert. Alternativ oder zusätzlich ist das Schneidrad in dem Schneidrad-Gehäuse eingeklipst, so dass ein Nutzbereich des Schneidrads ausschließlich durch das Schneidrad-Gehäuse zugänglich ist. Alternativ oder zusätzlich ist das Schneidrad in dem Schneidrad-Gehäuse eingeklipst, so dass das Schneidrad-Gehäuse eine Lagerung des Schneidrads an einem federgelagerten Hebelarm bildet.In a preferred embodiment, the cutting wheel is arranged in the cutting wheel housing, the cutting wheel being clipped into the cutting wheel housing so that it is mounted on the cutting wheel housing. The storage there is preferably implemented by means of locking lugs. Alternatively or additionally, the cutting wheel is clipped into the cutting wheel housing, so that a useful area of the cutting wheel is accessible exclusively through the cutting wheel housing. Alternatively or additionally, the cutting wheel is clipped into the cutting wheel housing, so that the cutting wheel housing forms a mounting of the cutting wheel on a spring-loaded lever arm.
Bevorzugt weist der Saugroboter weiterhin ein Sicherheitselement auf, das das Schneidrad derart umfasst, dass es ein Eingreifen von außen in das passive Schneidrad verhindert. Das Sicherheitselement ist bevorzugt als federgelagerte Haube ausgebildet. Die federgelagerte Haube ist bevorzugt derart ausgebildet, dass sie beim Andocken des Saugroboters an der Reinigungsstation vom Schneidrad wegbewegt wird. Alternativ bevorzugt ist das Sicherheitselement als federbetätigte Frontseite des Saugroboters ausgebildet. Bevorzugt ist die Frontseite des Saugroboters derart ausgebildet, dass sie entgegen einer Feder wirkt. Alternativ bevorzugt ist das Sicherheitselement als ein durch ein Feder- oder Feder-und-Hebel -System ausgebildet. Dieses System ist beispielsweise mittels Räder des Saugroboters oder einer Unterseite des Saugroboters betätigbar ausgebildet.The robot vacuum cleaner preferably furthermore has a safety element which comprises the cutting wheel in such a way that it prevents external intervention in the passive cutting wheel. The security element is preferably designed as a spring-loaded hood. The spring-loaded hood is preferably designed in such a way that it is moved away from the cutting wheel when the robot vacuum cleaner is docked at the cleaning station. Alternatively, the security element is preferably designed as a spring-actuated front side of the robotic vacuum cleaner. The front side of the robot vacuum cleaner is preferably designed in such a way that it acts against a spring. Alternatively, the security element is preferably designed as a spring or spring-and-lever system. This system is designed to be actuatable, for example, by means of wheels of the robot vacuum cleaner or an underside of the robot vacuum cleaner.
In einer bevorzugten Ausführungsform weist der Saugroboter weiterhin ein Roboter-Gebläse auf, welches ausgebildet ist, während eines Saugvorgangs die langgestreckten Schmutzpartikel abzusaugen, so dass sie durch den Saugkanal in eine sich im Innern des Saugroboters befindende Staubbox zum Sammeln von Staub gesaugt werden. Bevorzugt ist das Roboter-Gebläse ausgebildet, die vom Schneidrad zerkleinerten ehemals langgestreckten Schmutzpartikel während zu der Drehung der Borstwalze abzusaugen.In a preferred embodiment, the robot vacuum cleaner also has a robot fan, which is designed to suck off the elongated dirt particles during a suction process, so that they are sucked through the suction channel into a dust box located inside the robot vacuum cleaner to collect dust. The robot fan is preferably designed to suck off the formerly elongated dirt particles which have been comminuted by the cutting wheel while the bristle roller is rotating.
Ferner betrifft die Erfindung eine Reinigungsstation für einen Saugroboter, aufweisend eine Andockeinheit für einen Saugroboter, ein Schneidrad und eine Steuer- oder Regeleinheit, die ausgebildet ist, auf eine Mantelfläche einer Borstwalze eines sich in der Andockstation befindenden Saugroboters eine definierte Schneidkraft wirken zu lassen.The invention also relates to a cleaning station for a robot vacuum cleaner, having a docking unit for a robot vacuum cleaner, a cutting wheel and a control or regulating unit which is designed to allow a defined cutting force to act on a lateral surface of a bristle roller of a robotic vacuum cleaner located in the docking station.
Die definierte Schneidkraft liegt bevorzugt im Bereich von 1 bis 10 N. Das Schneidrad ist bevorzugt federgelagert. Bevorzugte Ausführungsformen des in der Reinigungsstation angeordneten Schneidrads entsprechen Ausführungsformen des Schneidrads, die zu dem Saugroboter beschrieben sind.The defined cutting force is preferably in the range from 1 to 10 N. The cutting wheel is preferably spring-loaded. Preferred embodiments of the cutting wheel arranged in the cleaning station correspond to embodiments of the cutting wheel that are described for the robot vacuum cleaner.
Die Reinigungsstation weist bevorzugt Schrägen auf, über die der Saugroboter, an eine Plattform der Reinigungsstation derart zwangsgeführt wird, dass ein positionsgenaues Andocken der Borstwalze bevorzugt des Sammelbereichs der Borstwalze an dem Schneidrad erzielt wird.The cleaning station preferably has inclines via which the robot vacuum cleaner is forcibly guided to a platform of the cleaning station in such a way that the bristle roller, preferably the collecting area of the bristle roller, is docked to the cutting wheel in a precisely positioned manner.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt
-
Fig. 1 eine Draufsicht auf einen erfindungsgemäßen Saugroboter; -
Fig. 2 eine Querschnittsansicht des inFig. 1 gezeigten Saugroboters in einem inaktiven Zustand; -
Fig. 3 eine Querschnittsansicht des inFig. 1 gezeigten Saugroboters in einem aktiven Zustand; -
Fig. 4 eine Teildraufsicht auf den inFig. 2 gezeigten Saugroboter; -
Fig. 5 eine Teildraufsicht auf den inFig. 3 gezeigten Saugroboter; -
Fig. 6 eine Teildraufsicht auf einen weiteren erfindungsgemäßen Saugroboter; -
Fig. 7 eine weitere Teildraufsicht auf den inFig. 2 gezeigten Saugroboter; -
Fig. 8 eine Querschnittsansicht des inFig. 7 gezeigten Saugroboters; -
Fig. 9 eine weitere Teildraufsicht des inFig. 2 gezeigten Saugroboters; -
Fig. 10 eine Seitenansicht des inFig. 9 gezeigten Schneidrads; -
Fig. 11 eine Querschnittsansicht des inFig. 10 gezeigten Schneidrads; -
Fig. 12 eine vergrößerte Teilansicht des inFig. 11 gezeigten Schneidrads; -
Fig. 13 eine perspektivische Ansicht des inFig. 10 gezeigten Schneidrads; -
Fig. 14 eine perspektivische Ansicht einer Variante des inFig. 13 gezeigten Schneidrads; -
Fig. 15 eine Seitenansicht des inFig. 14 gezeigten Schneidrads; -
Fig. 16 eine Querschnittsansicht des inFig. 15 gezeigten Schneidrads; -
Fig. 17 eine vergrößerte Teilansicht des inFig. 15 gezeigten Schneidrads; -
Fig. 18 eine Seitenansicht einer Variante des inFig. 14 gezeigten Schneidrads; -
Fig. 19 eine Querschnittsansicht des inFig. 18 gezeigten Schneidrads; -
Fig. 20 eine vergrößerte Teilansicht des inFig. 19 gezeigten Schneidrads; und -
Fig. 21 eine Querschnittsansicht einer erfindungsgemäßen Reinigungsstation mit einem angedockten Saugroboter.
-
Fig. 1 a plan view of a robot vacuum cleaner according to the invention; -
Fig. 2 a cross-sectional view of the inFig. 1 shown robotic vacuum cleaner in an inactive state; -
Fig. 3 a cross-sectional view of the inFig. 1 shown robotic vacuum cleaner in an active state; -
Fig. 4 a partial top view of the inFig. 2 shown robot hoover; -
Fig. 5 a partial top view of the inFig. 3 shown robot hoover; -
Fig. 6 a partial plan view of a further robot vacuum cleaner according to the invention; -
Fig. 7 another partial top view of the inFig. 2 shown robot hoover; -
Fig. 8 a cross-sectional view of the inFig. 7 shown robot hoover; -
Fig. 9 another partial top view of the inFig. 2 shown robot hoover; -
Fig. 10 a side view of the inFig. 9 shown cutting wheel; -
Fig. 11 a cross-sectional view of the inFig. 10 shown cutting wheel; -
Fig. 12 an enlarged partial view of the inFig. 11 shown cutting wheel; -
Fig. 13 a perspective view of the inFig. 10 shown cutting wheel; -
Fig. 14 a perspective view of a variant of the inFig. 13 shown cutting wheel; -
Fig. 15 a side view of the inFig. 14 shown cutting wheel; -
Fig. 16 a cross-sectional view of the inFig. 15 shown cutting wheel; -
Fig. 17 an enlarged partial view of the inFig. 15 shown cutting wheel; -
Fig. 18 a side view of a variant of the inFig. 14 shown cutting wheel; -
Fig. 19 a cross-sectional view of the inFig. 18 shown cutting wheel; -
Fig. 20 an enlarged partial view of the inFig. 19 shown cutting wheel; and -
Fig. 21 a cross-sectional view of a cleaning station according to the invention with a docked vacuum robot.
Ferner weist der Saugroboter ein Schneidrad auf, das gier der Übersichtlichkeit halber nicht gezeigt ist.The robot vacuum cleaner also has a cutting wheel, which is not shown for the sake of clarity.
Bei Betrieb des Saugroboters erzeugt das Gebläse 12 einen Saugstrom, der erst durch den Saugmund, dann durch den Saugraum 15, danach durch den Saugkanal 17 und anschließend durch die Staubbox 23 strömt. Dabei rotiert die Borstwalze 14, um ein Reinigen eines Untergrunds (nicht gezeigt) zu unterstützen.When the robot vacuum cleaner is in operation, the
- aa
- SchneidwinkelCutting angle
- bb
- Schneidrad-BreiteCutting wheel width
- bdbd
- ZahntiefeTooth depth
- bwbw
- ZahnabstandTooth spacing
- dd
- Durchmesserdiameter
- 11
- BorstwalzenkörperBristle roller body
- 33
- LamelleLamella
- 44th
- SammelbereichCollection area
- 55
- langgestrecktes Schmutzpartikelelongated dirt particle
- 66th
- SchneidradCutting wheel
- 77th
- Schneidrad-GehäuseCutting wheel housing
- 88th
- HebelarmLever arm
- 1010
- Gehäusecasing
- 1111th
- Gehäusecasing
- 1212th
- Gebläsefan
- 1414th
- BorstwalzeBristle roller
- 1515th
- SaugraumSuction chamber
- 1616
- Radwheel
- 1717th
- SaugkanalSuction channel
- 1919th
- Zahntooth
- 2121
- HalterungselementSupport element
- 2222nd
- BewegungselementMovement element
- 2323
- StaubboxDust box
- 2424
- stumpfes Elementblunt element
- 2525th
- Halterungbracket
- 2626th
- RollschneidklingeRotary cutting blade
- 3030th
- Reinigungsstation-GehäuseCleaning station housing
Claims (12)
Applications Claiming Priority (1)
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DE102020115217.5A DE102020115217A1 (en) | 2020-06-09 | 2020-06-09 | Robot vacuum cleaner and cleaning station |
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EP3922154A1 true EP3922154A1 (en) | 2021-12-15 |
EP3922154B1 EP3922154B1 (en) | 2022-08-24 |
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EP21173463.7A Active EP3922154B1 (en) | 2020-06-09 | 2021-05-12 | Suction robot and cleaning station |
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EP (1) | EP3922154B1 (en) |
DE (1) | DE102020115217A1 (en) |
ES (1) | ES2926289T3 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US20090229075A1 (en) * | 2008-03-17 | 2009-09-17 | Electrolux Home Care Products, Inc. | Agitator with Cleaning Features |
DE102014110025A1 (en) * | 2014-07-17 | 2016-01-21 | Miele & Cie. Kg | Vacuum robot with rotating roller brush and cleaning process for a roller brush of a vacuum robot |
DE102015114082A1 (en) * | 2015-08-25 | 2017-03-02 | Miele & Cie. Kg | Vacuum robot with rotating roller brush and method for cleaning a roller brush of a vacuum robot |
WO2017200233A1 (en) | 2016-05-18 | 2017-11-23 | 삼성전자주식회사 | Vacuum cleaner |
DE102018114212A1 (en) * | 2018-06-14 | 2019-12-19 | Miele & Cie. Kg | Vacuum robot and method for controlling a vacuum robot |
US20200121144A1 (en) * | 2018-10-19 | 2020-04-23 | Sharkninja Operating, Llc | Agitator for a surface treatment apparatus and a surface treatment apparatus having the same |
-
2020
- 2020-06-09 DE DE102020115217.5A patent/DE102020115217A1/en active Pending
-
2021
- 2021-05-12 ES ES21173463T patent/ES2926289T3/en active Active
- 2021-05-12 EP EP21173463.7A patent/EP3922154B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US20090229075A1 (en) * | 2008-03-17 | 2009-09-17 | Electrolux Home Care Products, Inc. | Agitator with Cleaning Features |
DE102014110025A1 (en) * | 2014-07-17 | 2016-01-21 | Miele & Cie. Kg | Vacuum robot with rotating roller brush and cleaning process for a roller brush of a vacuum robot |
DE102015114082A1 (en) * | 2015-08-25 | 2017-03-02 | Miele & Cie. Kg | Vacuum robot with rotating roller brush and method for cleaning a roller brush of a vacuum robot |
WO2017200233A1 (en) | 2016-05-18 | 2017-11-23 | 삼성전자주식회사 | Vacuum cleaner |
EP3440972A1 (en) * | 2016-05-18 | 2019-02-13 | Samsung Electronics Co., Ltd. | Vacuum cleaner |
DE102018114212A1 (en) * | 2018-06-14 | 2019-12-19 | Miele & Cie. Kg | Vacuum robot and method for controlling a vacuum robot |
US20200121144A1 (en) * | 2018-10-19 | 2020-04-23 | Sharkninja Operating, Llc | Agitator for a surface treatment apparatus and a surface treatment apparatus having the same |
Also Published As
Publication number | Publication date |
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ES2926289T3 (en) | 2022-10-25 |
EP3922154B1 (en) | 2022-08-24 |
DE102020115217A1 (en) | 2021-12-09 |
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