EP3443882B1 - Suction robot for autonomous cleaning of floor surfaces - Google Patents

Suction robot for autonomous cleaning of floor surfaces Download PDF

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Publication number
EP3443882B1
EP3443882B1 EP18183933.3A EP18183933A EP3443882B1 EP 3443882 B1 EP3443882 B1 EP 3443882B1 EP 18183933 A EP18183933 A EP 18183933A EP 3443882 B1 EP3443882 B1 EP 3443882B1
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EP
European Patent Office
Prior art keywords
suction mouth
suction
lip
mouth lip
robot
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EP18183933.3A
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German (de)
French (fr)
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EP3443882A2 (en
EP3443882A3 (en
Inventor
Tobias SOMMER
Markus Thamm
Carina Maoro
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Miele und Cie KG
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Miele und Cie KG
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Publication of EP3443882A3 publication Critical patent/EP3443882A3/en
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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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Definitions

  • the invention relates to a suction robot for autonomous cleaning of floor surfaces, the suction robot having a suction mouth, the suction mouth being delimited by a suction mouth lip, the suction mouth lip having a first suction mouth lip area, a second suction mouth lip area and a third suction mouth lip area, the first suction mouth lip area with the suction robot is connected, the third suction mouth lip area being designed to contact a floor surface to be cleaned, the second suction mouth lip area connecting the first suction mouth lip area to the third suction mouth lip area, the second suction mouth lip area being formed around the suction mouth lip about an axis running transversely to the direction of movement of the robot vacuum cleaner to pivot.
  • Vacuum robots are known from the prior art which have a rubber lip or strip brush in order to improve the mobilization of dust and dirt particles from a floor surface to be cleaned.
  • the problem here is that these rubber lips or strip brushes must be in engagement with the floor covering to be cleaned for a satisfactory mobilization of dust and dirt with the greatest possible force.
  • exerting a large force, particularly on deep-pile carpets results in resistance.
  • This prevents vacuum robots, which have a limited drive power, from autonomously moving over the floor surface to be cleaned.
  • excessive force exerted by vacuum robots with the known lips or brushes leads to undesirable scratching or grinding noises or even damage to the floor surface.
  • From the publication DE 10 2014 117 418 A1 a floor nozzle for a conventional, hand-held vacuum cleaner is known which has a movable suction lip.
  • the publication WO 2014/187499 A1 discloses a suction robot for autonomous cleaning of floor surfaces with a suction mouth, the suction mouth being delimited by a suction mouth lip, the suction mouth lip having a first suction mouth lip area, a second suction mouth lip area and a third suction mouth lip area, the first suction mouth lip area being connected to the suction robot, the third Suction lip area is designed to contact a floor surface to be cleaned, the second suction lip area connecting the first suction lip area to the third suction lip area, the second suction lip area being designed to pivot the suction lip about an axis running transversely to the direction of movement of the vacuum robot.
  • the disadvantage here is that in the second suction lip area Material weakening is introduced in order to achieve sufficient mobility of the suction lip in the cleaning operation. This has a negative impact on the durability of the suction mouth of the robot vacuum.
  • the invention thus presents the problem of improving the mobilization of dust and dirt particles in robot vacuums. According to the invention, this problem is solved by a device with the features of claim 1. Advantageous refinements and developments of the invention result from the following subclaims.
  • the third suction lip area has a hardness between 85 to 99 Shore A in a preferred embodiment and a hardness between 90 to 95 Shore A in a particularly preferred embodiment.
  • the preferred Shore hardness is a material characteristic according to the standards DIN EN ISO 868 and DIN ISO 7619-1.
  • the suction mouth of a robot vacuum cleaner is an opening in its housing through which dust and dirt particles can be picked up from the floor surface to be cleaned.
  • the suction mouth lip delimits the suction mouth of the suction robot in such a way that the suction mouth lip is arranged in front of and behind the suction mouth of the suction robot with respect to the direction of movement of the suction robot.
  • the suction mouth lip only on one side of the suction mouth.
  • the suction mouth lip largely seals the suction mouth of the robot vacuum cleaner from the surroundings.
  • the direction of movement of the robot vacuum is the direction in which the robot vacuum mainly moves in cleaning mode.
  • the suction mouth lip can be pivoted in such a way about an axis running transversely to the direction of movement that the resistance which arises on the suction mouth lip against the direction of movement of the robot vacuum is reduced.
  • the movement of the suction mouth lip about an axis running transversely to the direction of movement of the vacuum robot is justified by objects which are located on the floor surface to be cleaned and are in contact with the suction mouth lip.
  • the third suction mouth lip area of the suction mouth lip is designed in such a way that it contacts the floor surface to be cleaned in the cleaning operation of the vacuum robot.
  • the robot vacuum moves autonomously over a floor surface to be cleaned and cleans it of dust and dirt particles.
  • the second suction lip area has a hardness between 40 to 65 Shore A in a preferred embodiment and a hardness between 45 to 60 Shore A in a particularly preferred embodiment.
  • the first suction lip area has a hardness between 85 to 99 Shore A in a preferred embodiment and a hardness between 90 to 95 Shore A in a particularly preferred embodiment.
  • a suction lip in the preferred hardnesses ensures sufficient mobilization of dust and dirt particles without generating disturbing noises or causing damage to the floor surface.
  • a suction mouth lip in the preferred hardnesses is able to bend the fibers of carpet coverings in sufficient shape without this resulting in the robot vacuum getting stuck due to the resulting resistances.
  • the suction mouth is delimited by a second suction mouth lip, a first suction mouth lip being arranged in front of the suction mouth and a second suction mouth lip being arranged behind the suction mouth.
  • the sides of the suction mouth which are oriented essentially transversely to the direction of movement of the vacuum robot, are delimited by a first and a second suction mouth lip.
  • a movable suction mouth lip according to the invention only on one side in front of or behind the suction mouth.
  • an approximately rigid suction mouth lip or no suction mouth lip is arranged on the corresponding side of the suction mouth.
  • suction mouth lips in front of and behind the suction mouth in relation to the direction of movement of the robot vacuum causes the suction mouth to be adequately sealed from the surroundings. This ensures satisfactory mobilization and absorption of dust and dirt particles by the vacuum robot.
  • the first suction mouth lip area can be detachably connected to the suction robot.
  • the suction mouth lip can be detachably connected to the suction robot via the first suction mouth lip area.
  • the suction mouth lip with the first suction mouth lip area is arranged in a suction mouth module which is detachably arranged on the suction robot.
  • the detachable arrangement of the suction mouth lip on the robot vacuum enables regular replacement. If there is any wear of the suction mouth lip in the cleaning operation, in particular on the third suction mouth lip area, the suction mouth lip can also be easily changed by the user. This guarantees a constant cleaning performance of the robot vacuum throughout its entire product life cycle.
  • the suction mouth lip can be produced in a multi-component injection molding process. This ensures the production of the suction mouth lip with individual suction mouth lip areas from different material components or from materials with different material properties.
  • the manufacture of the Suction mouth lip through a multi-component injection molding process is cost-minimal and enables the configuration of a suction mouth lip with optimal properties for use in suction robots.
  • FIG. 1 shows the sectional view of the suction mouth of a suction robot 10 with two suction mouth lips 14.
  • the arrow shown represents the direction of movement 22 of the suction robot 10.
  • This movement direction 22 is mainly followed by the suction robot 10 in the cleaning operation.
  • the housing 28 of the vacuum robot 10 shapes a suction mouth 12 with which the vacuum robot 10 picks up dust and dirt particles from the floor surface to be cleaned.
  • a blower (not shown in FIG Figure 1 ) arranged, which generates a suction air flow. This suction air flow is used for the mobilization and removal of dust and dirt particles from the carpet 30 to be cleaned.
  • a suction mouth lip 14 is detachably arranged on the housing 28 of the suction robot 10. Both suction mouth lips 14 protrude from the housing 28 in the direction of the carpet 30 to be cleaned. Both suction mouth lips 14 shape a first 16, a second 18 and a third suction mouth area 20.
  • the first suction mouth lip area 16 is arranged in a form-fitting manner in the housing 28 of the suction robot 10.
  • the third suction lip area 20 is in engagement with the carpet fibers of the carpet 30 to be cleaned.
  • the second suction lip area 18 connects the first 16 and third suction mouth area 20.
  • Both suction mouth lips 14 cause the carpet fibers of the carpet to be cleaned 30 to bend open. As a result, dust and dirt particles (not shown in FIG Figure 1 ), which have accumulated between the individual carpet fibers, are better removed by the suction air flow of the suction robot 10. In addition, the movement of the carpet fibers, which is brought about by the suction lips 14, leads to a partial whirling up of dust and dirt particles. This results in an additional improvement in the cleaning performance of the vacuum robot 10. The carpet fibers are too stiff to cause the suction mouth lips 14 to deflect.
  • Figure 2 also shows a sectional view of the suction mouth 12 of a vacuum robot 10 with two suction mouth lips 14.
  • the carpet 30 to be cleaned embossed an edge 32 which is to be run over by the vacuum robot 10.
  • the third suction lip area 20 is in contact with the edge 32.
  • the third suction mouth area 20 is pivoted, and this pivoting movement is made possible by the second suction lip area 18, which kinked about an axis that extends transversely to the direction of movement 22 of the vacuum robot 10.
  • the pivoting movement of the third suction mouth lip area 20 increases the distance of the third suction mouth lip area 20 from the carpet covering 30 and thus enables the third suction mouth lip area 20 to slide over the edge 32 on the carpet covering 30.
  • the suction robot 10 becomes stuck due to a contact between the suction mouth lip 14 and the edge 32 is prevented.

Description

Die Erfindung betrifft einen Saugroboter zur autonomen Reinigung von Bodenflächen, wobei der Saugroboter einen Saugmund aufweist, wobei der Saugmund durch eine Saugmundlippe begrenzt wird, wobei die Saugmundlippe einen ersten Saugmundlippenbereich, einen zweiten Saugmundlippenbereich und einen dritten Saugmundlippenbereich aufweist, wobei der erste Saugmundlippenbereich mit dem Saugroboter verbunden ist, wobei der dritte Saugmundlippenbereich ausgebildet ist, um eine zu reinigende Bodenfläche zu kontaktieren, wobei der zweite Saugmundlippenbereich den ersten Saugmundlippenbereich mit dem dritten Saugmundlippenbereich verbindet, wobei der zweite Saugmundlippenbereich ausgebildet ist, um die Saugmundlippe um eine quer zur Bewegungsrichtung des Saugroboters verlaufenden Achse zu verschwenken.The invention relates to a suction robot for autonomous cleaning of floor surfaces, the suction robot having a suction mouth, the suction mouth being delimited by a suction mouth lip, the suction mouth lip having a first suction mouth lip area, a second suction mouth lip area and a third suction mouth lip area, the first suction mouth lip area with the suction robot is connected, the third suction mouth lip area being designed to contact a floor surface to be cleaned, the second suction mouth lip area connecting the first suction mouth lip area to the third suction mouth lip area, the second suction mouth lip area being formed around the suction mouth lip about an axis running transversely to the direction of movement of the robot vacuum cleaner to pivot.

Aus dem Stand der Technik sind Saugroboter bekannt, die eine Gummilippe oder Streifenbürste aufweisen, um die Mobilisation von Staub- und Schmutzpartikeln von einer zu reinigenden Bodenfläche zu verbessern. Problematisch hierbei ist, dass sich diese Gummilippen oder Streifenbürsten für eine zufriedenstellende Staub- und Schmutzmobilisation mit einer möglichst großen Krafteinwirkung im Eingriff mit dem zu reinigenden Bodenbelag befinden müssen. Allerdings resultiert die Ausübung einer großen Krafteinwirkung insbesondere auf hochflorigen Teppichbelägen in einem Widerstand. Dieser hindert Saugroboter, welche eine begrenzte Antriebsleistung aufweisen, an einem autonomen Verfahren über die zu reinigenden Bodenfläche. Zudem führt eine zu große Krafteinwirkung bei Saugrobotern mit den bekannten Lippen oder Bürsten zu unerwünschten Kratz- oder Schleifgeräuschen oder sogar zu Beschädigungen der Bodenfläche. Aus der Druckschrift DE 10 2014 117 418 A1 ist eine Bodendüse für einen konventionellen, handgeführten Staubsauger bekannt, welcher eine bewegliche Saugmundlippe aufweist.Vacuum robots are known from the prior art which have a rubber lip or strip brush in order to improve the mobilization of dust and dirt particles from a floor surface to be cleaned. The problem here is that these rubber lips or strip brushes must be in engagement with the floor covering to be cleaned for a satisfactory mobilization of dust and dirt with the greatest possible force. However, exerting a large force, particularly on deep-pile carpets, results in resistance. This prevents vacuum robots, which have a limited drive power, from autonomously moving over the floor surface to be cleaned. In addition, excessive force exerted by vacuum robots with the known lips or brushes leads to undesirable scratching or grinding noises or even damage to the floor surface. From the publication DE 10 2014 117 418 A1 a floor nozzle for a conventional, hand-held vacuum cleaner is known which has a movable suction lip.

Die Druckschrift WO 2014/187499 A1 offenbart einen Saugroboter zur autonomen Reinigung von Bodenflächen mit einem Saugmund, wobei der Saugmund durch eine Saugmundlippe begrenzt wird, wobei die Saugmundlippe einen ersten Saugmundlippenbereich, einen zweiten Saugmundlippenbereich und einen dritten Saugmundlippenbereich aufweist, wobei der erste Saugmundlippenbereich mit dem Saugroboter verbunden ist, wobei der dritte Saugmundlippenbereich ausgebildet ist, um eine zu reinigende Bodenfläche zu kontaktieren, wobei der zweite Saugmundlippenbereich den ersten Saugmundlippenbereich mit dem dritten Saugmundlippenbereich verbindet, wobei der zweite Saugmundlippenbereich ausgebildet ist, um die Saugmundlippe um eine quer zur Bewegungsrichtung des Saugroboters verlaufenden Achse zu verschwenken. Nachteilig hierbei ist, dass im zweiten Saugmundlippenbereich eine Materialschwächung eingebracht ist, um eine ausreichenden Beweglichkeit der Saugmundlippe im Reinigungsbetrieb zu realisieren. Dies wirkt sich negativ auf die Dauerhaltbarkeit des Saugmunds des Saugroboters aus.The publication WO 2014/187499 A1 discloses a suction robot for autonomous cleaning of floor surfaces with a suction mouth, the suction mouth being delimited by a suction mouth lip, the suction mouth lip having a first suction mouth lip area, a second suction mouth lip area and a third suction mouth lip area, the first suction mouth lip area being connected to the suction robot, the third Suction lip area is designed to contact a floor surface to be cleaned, the second suction lip area connecting the first suction lip area to the third suction lip area, the second suction lip area being designed to pivot the suction lip about an axis running transversely to the direction of movement of the vacuum robot. The disadvantage here is that in the second suction lip area Material weakening is introduced in order to achieve sufficient mobility of the suction lip in the cleaning operation. This has a negative impact on the durability of the suction mouth of the robot vacuum.

Der Erfindung stellt sich somit das Problem die Mobilisation von Staub- und Schmutzpartikeln bei Saugrobotern zu verbessern. Erfindungsgemäß wird dieses Problem durch eine Vorrichtung mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.The invention thus presents the problem of improving the mobilization of dust and dirt particles in robot vacuums. According to the invention, this problem is solved by a device with the features of claim 1. Advantageous refinements and developments of the invention result from the following subclaims.

Erfindungsgemäß weist der dritte Saugmundlippenbereich in einer bevorzugten Ausführungsform eine Härte zwischen 85 bis 99 Shore A und in einer besonders bevorzugten Ausführungsform eine Härte zwischen 90 bis 95 Shore A auf. Bei der bevorzugten Shore-Härte handelt es sich um einen Werkstoffkennwert gemäß den Normen DIN EN ISO 868 und DIN ISO 7619-1. Dabei ist der Saugmund eines Saugroboters eine Öffnung in dessen Gehäuse über welche Staub- und Schmutzpartikel von der zu reinigenden Bodenfläche aufgenommen werden können. Die Saugmundlippe begrenzt den Saugmund des Saugroboters in derart, dass die Saugmundlippe in Bezug auf die Bewegungsrichtung des Saugroboters vor und hinter dem Saugmund des Saugroboters angeordnet ist. In einer alternativen Ausführungsform ist es aber auch denkbar die Saugmundlippe nur auf einer Seite des Saugmunds anzuordnen. Die Saugmundlippe dichtet den Saugmund des Saugroboters weitestgehend von der Umgebung ab. Die Bewegungsrichtung des Saugroboters ist die Richtung, in welche der Saugroboter im Reinigungsbetrieb überwiegend fährt. Die Saugmundlippe ist dabei in derart um eine quer zur Bewegungsrichtung verlaufende Achse verschwenkbar, dass sich der Widerstand welcher an der Saugmundlippe entgegen der Bewegungsrichtung des Saugroboters entsteht reduziert. Die Bewegung der Saugmundlippe um eine quer zur Bewegungsrichtung des Saugroboters verlaufenden Achse wird dabei durch Objekte begründet, welche sich auf der zu reinigenden Bodenfläche befinden und in Kontakt mit der Saugmundlippe stehen. Der dritte Saugmundlippenbereich der Saugmundlippe ist in derart ausgebildet, dass dieser im Reinigungsbetrieb des Saugroboters die zu reinigenden Bodenfläche kontaktiert. Im Reinigungsbetrieb verfährt der Saugroboter autonom über eine zu reinigenden Bodenfläche und reinigt dieses von Staubund Schmutzpartikeln.According to the invention, the third suction lip area has a hardness between 85 to 99 Shore A in a preferred embodiment and a hardness between 90 to 95 Shore A in a particularly preferred embodiment. The preferred Shore hardness is a material characteristic according to the standards DIN EN ISO 868 and DIN ISO 7619-1. The suction mouth of a robot vacuum cleaner is an opening in its housing through which dust and dirt particles can be picked up from the floor surface to be cleaned. The suction mouth lip delimits the suction mouth of the suction robot in such a way that the suction mouth lip is arranged in front of and behind the suction mouth of the suction robot with respect to the direction of movement of the suction robot. In an alternative embodiment, however, it is also conceivable to arrange the suction mouth lip only on one side of the suction mouth. The suction mouth lip largely seals the suction mouth of the robot vacuum cleaner from the surroundings. The direction of movement of the robot vacuum is the direction in which the robot vacuum mainly moves in cleaning mode. The suction mouth lip can be pivoted in such a way about an axis running transversely to the direction of movement that the resistance which arises on the suction mouth lip against the direction of movement of the robot vacuum is reduced. The movement of the suction mouth lip about an axis running transversely to the direction of movement of the vacuum robot is justified by objects which are located on the floor surface to be cleaned and are in contact with the suction mouth lip. The third suction mouth lip area of the suction mouth lip is designed in such a way that it contacts the floor surface to be cleaned in the cleaning operation of the vacuum robot. In cleaning operation, the robot vacuum moves autonomously over a floor surface to be cleaned and cleans it of dust and dirt particles.

Es ist bevorzugt, dass der zweite Saugmundlippenbereich in einer bevorzugten Ausführungsform eine Härte zwischen 40 bis 65 Shore A und in einer besonders bevorzugten Ausführungsform eine Härte zwischen 45 bis 60 Shore A aufweist.It is preferred that the second suction lip area has a hardness between 40 to 65 Shore A in a preferred embodiment and a hardness between 45 to 60 Shore A in a particularly preferred embodiment.

Zudem ist es bevorzugt, dass der erste Saugmundlippenbereich in einer bevorzugten Ausführungsform eine Härte zwischen 85 bis 99 Shore A und in einer besonders bevorzugten Ausführungsform eine Härte zwischen 90 bis 95 Shore A aufweist.In addition, it is preferred that the first suction lip area has a hardness between 85 to 99 Shore A in a preferred embodiment and a hardness between 90 to 95 Shore A in a particularly preferred embodiment.

Eine Saugmundlippe in den bevorzugten Härten gewährleistet eine ausreichende Mobilisation von Staub- und Schmutzpartikeln ohne dabei störende Geräusche zu erzeugen oder eine Beschädigung der Bodenfläche zu bewirken. Eine Saugmundlippe in den bevorzugten Härten ist in der Lage die Fasern von Teppichbelägen in ausreichender Form aufzubiegen ohne dass dies aufgrund der resultierenden Widerständen in einem Festfahren des Saugroboters resultiert.A suction lip in the preferred hardnesses ensures sufficient mobilization of dust and dirt particles without generating disturbing noises or causing damage to the floor surface. A suction mouth lip in the preferred hardnesses is able to bend the fibers of carpet coverings in sufficient shape without this resulting in the robot vacuum getting stuck due to the resulting resistances.

In einer Ausführungsform wird der Saugmund durch eine zweite Saugmundlippe begrenzt, wobei eine erste Saugmundlippe vor dem Saugmund und eine zweite Saugmundlippe hinter dem Saugmund angeordnet ist. Mit anderen Worten werden die Seiten des Saugmundes, welche im Wesentlichen quer zur Bewegungsrichtung des Saugroboters ausgerichtet sind durch eine erste und eine zweite Saugmundlippe begrenzt. In einer Ausführungsform ist es bevorzugt, auf den Seiten des Saugmundes welche annähernd parallel zu Bewegungsrichtung des Saugroboters verlaufen auch Saugmundlippen anzuordnen. In einer alternativen Ausführungsform ist es aber auch denkbar, eine erfindungsgemäße bewegliche Saugmundlippe lediglich auf einer Seite vor oder hinter dem Saugmund anzuordnen. Auf der korrespondierenden Seite des Saugmundes ist in dieser alternativen Ausführungsform eine annähernd starre Saugmundlippe oder keine Saugmundlippe angeordnet.In one embodiment, the suction mouth is delimited by a second suction mouth lip, a first suction mouth lip being arranged in front of the suction mouth and a second suction mouth lip being arranged behind the suction mouth. In other words, the sides of the suction mouth, which are oriented essentially transversely to the direction of movement of the vacuum robot, are delimited by a first and a second suction mouth lip. In one embodiment, it is preferred to also arrange suction mouth lips on the sides of the suction mouth which run approximately parallel to the direction of movement of the vacuum robot. In an alternative embodiment, however, it is also conceivable to arrange a movable suction mouth lip according to the invention only on one side in front of or behind the suction mouth. In this alternative embodiment, an approximately rigid suction mouth lip or no suction mouth lip is arranged on the corresponding side of the suction mouth.

Die Anordnung von Saugmundlippen vor und hinter dem Saugmund in Bezug auf die Bewegungsrichtung des Saugroboters bewirkt eine ausreichende Abdichtung des Saugmund gegenüber der Umgebung. Dies gewährleistet eine zufriedenstellende Mobilisation und Aufnahme von Staub- und Schmutzpartikeln durch den Saugroboter.The arrangement of suction mouth lips in front of and behind the suction mouth in relation to the direction of movement of the robot vacuum causes the suction mouth to be adequately sealed from the surroundings. This ensures satisfactory mobilization and absorption of dust and dirt particles by the vacuum robot.

Bevorzugt ist, dass der erste Saugmundlippenbereich lösbar mit dem Saugroboter verbindbar ist. Mit anderen Worte ist die Saugmundlippe über den ersten Saugmundlippenbereich lösbar mit dem Saugroboter verbindbar. In einer alternativen Ausführungsform ist es denkbar, dass die Saugmundlippe mit dem ersten Saugmundlippenbereich in einem Saugmundmodul angeordnet ist, welches lösbar am Saugroboter angeordnet ist.It is preferred that the first suction mouth lip area can be detachably connected to the suction robot. In other words, the suction mouth lip can be detachably connected to the suction robot via the first suction mouth lip area. In an alternative embodiment, it is conceivable that the suction mouth lip with the first suction mouth lip area is arranged in a suction mouth module which is detachably arranged on the suction robot.

Die lösbare Anordnung der Saugmundlippe am Saugroboter ermöglicht einen regelmäßigen Austausch. Bei etwaig auftretenden Verschleiß der Saugmundlippe im Reinigungsbetrieb, insbesondere am dritten Saugmundlippenbereich, kann die Saugmundlippe auch durch den Benutzer einfach gewechselt werden. Dies gewährkleistet eine gleichbleibende Reinigungsleistung des Saugroboters entlang seines gesamten Produktlebenszyklus.The detachable arrangement of the suction mouth lip on the robot vacuum enables regular replacement. If there is any wear of the suction mouth lip in the cleaning operation, in particular on the third suction mouth lip area, the suction mouth lip can also be easily changed by the user. This guarantees a constant cleaning performance of the robot vacuum throughout its entire product life cycle.

Es ist bevorzugt, dass die Saugmundlippe in einem Mehrkomponentenspritzgussverfahren herstellbar ist. Dies gewährleistet die Herstellung der Saugmundlippe mit einzelnen Saugmundlippenbereichen aus unterschiedlichen Materialkomponenten beziehungsweise aus Materialien mit unterschiedlichen Materialeigenschaften. Die Herstellung der Saugmundlippe durch ein Mehrkomponentenspritzgussverfahren ist kostenminimal und ermöglicht die Konfiguration einer Saugmundlippe mit optimalen Eigenschaften für den Einsatz in Saugrobotern.It is preferred that the suction mouth lip can be produced in a multi-component injection molding process. This ensures the production of the suction mouth lip with individual suction mouth lip areas from different material components or from materials with different material properties. The manufacture of the Suction mouth lip through a multi-component injection molding process is cost-minimal and enables the configuration of a suction mouth lip with optimal properties for use in suction robots.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:

Figur 1
Schnittansicht des Saugmund eines Saugroboters mit Saugmundlippen;
Figur 2
Schnittansicht des Saugmund eines Saugroboters mit Saugmundlippen.
An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. Show it:
Figure 1
Sectional view of the suction mouth of a vacuum robot with suction mouth lips;
Figure 2
Sectional view of the suction mouth of a vacuum robot with suction mouth lips.

Figur 1 zeigt die Schnittansicht des Saugmundes eines Saugroboters 10 mit zwei Saugmundlippen 14. Der eingezeichnete Pfeil repräsentiert die Bewegungsrichtung 22 des Saugroboters 10. Diese Bewegungsrichtung 22 verfolgt der Saugroboter 10 im Reinigungsbetrieb schwerpunktmäßig. Das Gehäuse 28 des Saugroboters 10 prägt einen Saugmund 12 aus, mit dem der Saugroboter 10 Staub- und Schmutzpartikel von der zu reinigenden Bodenfläche aufnimmt. Hierfür ist im Gehäuse 28 des Saugroboters 10 ein Gebläse (nicht dargestellt in Figur 1) angeordnet, welches einen Saugluftstrom erzeugt. Dieser Saugluftstrom wird zur Mobilisation und zum Abtransport von Staub- und Schmutzpartikeln von dem zu reinigenden Teppichbelag 30 eingesetzt. Figure 1 shows the sectional view of the suction mouth of a suction robot 10 with two suction mouth lips 14. The arrow shown represents the direction of movement 22 of the suction robot 10. This movement direction 22 is mainly followed by the suction robot 10 in the cleaning operation. The housing 28 of the vacuum robot 10 shapes a suction mouth 12 with which the vacuum robot 10 picks up dust and dirt particles from the floor surface to be cleaned. For this purpose, a blower (not shown in FIG Figure 1 ) arranged, which generates a suction air flow. This suction air flow is used for the mobilization and removal of dust and dirt particles from the carpet 30 to be cleaned.

Vor und hinter dem Saugmund 12 des Saugroboters 10 in Bezug auf dessen Bewegungsrichtung 22 ist jeweils eine Saugmundlippe 14 lösbar am Gehäuse 28 des Saugroboters 10 angeordnet. Beide Saugmundlippen 14 stehen von dem Gehäuse 28 in Richtung des zu reinigenden Teppichbelags 30 ab. Beide Saugmundlippen 14 prägen einen ersten 16, einen zweiten 18 und einen dritten Saugmundlippenbereich 20 aus. Der erste Saugmundlippenbereich 16 ist formschlüssig im Gehäuse 28 des Saugroboters 10 angeordnet. Der dritte Saugmundlippenbereich 20 befindet sind im Eingriff mit den Teppichfasern des zu reinigenden Teppichbelags 30. Der zweite Saugmundlippenbereich 18 verbindet den ersten 16 und dritten Saugmundlippenbereich 20.In front of and behind the suction mouth 12 of the suction robot 10 with respect to its direction of movement 22, a suction mouth lip 14 is detachably arranged on the housing 28 of the suction robot 10. Both suction mouth lips 14 protrude from the housing 28 in the direction of the carpet 30 to be cleaned. Both suction mouth lips 14 shape a first 16, a second 18 and a third suction mouth area 20. The first suction mouth lip area 16 is arranged in a form-fitting manner in the housing 28 of the suction robot 10. The third suction lip area 20 is in engagement with the carpet fibers of the carpet 30 to be cleaned. The second suction lip area 18 connects the first 16 and third suction mouth area 20.

Beide Saugmundlippen 14 bewirken ein Aufbiegen der Teppichfasern des zu reinigenden Teppichbelags 30. Infolgedessen lassen sich Staub- und Schmutzpartikel (nicht dargestellt in Figur 1), welche sich zwischen den einzelnen Teppichfasern angesammelt haben, verbessert durch den Saugluftstrom des Saugroboters 10 abtransportieren. Zudem führt die Bewegung der Teppichfasern, welche durch die Saugmundlippen 14 bewirkt wird, zum einem teilweisen Aufwirbeln von Staub- und Schmutzpartikeln. Dies bewirkt eine zusätzliche Verbesserung der Reinigungsleistung des Saugroboters 10. Die Teppichfasern weisen dabei eine zu geringe Steifigkeit auf, um eine Auslenkung der Saugmundlippen 14 zu bewirken.Both suction mouth lips 14 cause the carpet fibers of the carpet to be cleaned 30 to bend open. As a result, dust and dirt particles (not shown in FIG Figure 1 ), which have accumulated between the individual carpet fibers, are better removed by the suction air flow of the suction robot 10. In addition, the movement of the carpet fibers, which is brought about by the suction lips 14, leads to a partial whirling up of dust and dirt particles. This results in an additional improvement in the cleaning performance of the vacuum robot 10. The carpet fibers are too stiff to cause the suction mouth lips 14 to deflect.

Figur 2 zeigt ebenfalls eine Schnittansicht des Saugmundes 12 eines Saugroboters 10 mit zwei Saugmundlippen 14. Im Unterschied zur Figur 1 prägt hierbei der zu reinigende Teppichbelag 30 eine Kante 32 aus, welches es für den Saugroboter 10 zu überfahren gilt. Der dritte Saugmundlippenbereich 20 befindet sich dabei in Kontakt mit der Kante 32. Infolge des Kraftmomentes, welche die Kante 32 auf den dritten Saugmundlippenbereich 20 ausübt, kommt es zu einer Verschwenkbewegung des dritten Saugmundlippenbereichs 20. Ermöglicht wird diese Verschwenkbewegung durch den zweiten Saugmundlippenbereich 18, welcher um eine Achse verknickt, die quer zur Bewegungsrichtung 22 des Saugroboters 10 verläuft. Die Verschwenkbewegung der dritten Saugmundlippenbereichs 20 vergrößert den Abstand des dritten Saugmundlippenbereichs 20 gegenüber dem Teppichbelag 30 und ermöglicht so ein Hinübergleiten des dritten Saugmundlippenbereichs 20 über die Kante 32 auf dem Teppichbelag 30. Ein Festfahren des Saugroboters 10 durch einen Kontakt zwischen Saugmundlippe 14 und der Kante 32 wird dadurch verhindert. Figure 2 also shows a sectional view of the suction mouth 12 of a vacuum robot 10 with two suction mouth lips 14. In contrast to Figure 1 Here, the carpet 30 to be cleaned embossed an edge 32 which is to be run over by the vacuum robot 10. The third suction lip area 20 is in contact with the edge 32. As a result of the moment of force which the edge 32 exerts on the third suction lip area 20, the third suction mouth area 20 is pivoted, and this pivoting movement is made possible by the second suction lip area 18, which kinked about an axis that extends transversely to the direction of movement 22 of the vacuum robot 10. The pivoting movement of the third suction mouth lip area 20 increases the distance of the third suction mouth lip area 20 from the carpet covering 30 and thus enables the third suction mouth lip area 20 to slide over the edge 32 on the carpet covering 30. The suction robot 10 becomes stuck due to a contact between the suction mouth lip 14 and the edge 32 is prevented.

BezugszeichenlisteReference symbol list

1010th
SaugroboterRobot vacuum
1212
SaugmundSuction mouth
1414
SaugmundlippeSuction lip
1616
erster Saugmundlippenbereichfirst suction lip area
1818th
zweiter Saugmundlippenbereichsecond suction lip area
2020th
dritter Saugmundlippenbereichthird suction lip area
2222
BewegungsrichtungDirection of movement
2424th
erste Saugmundlippefirst suction mouth lip
2626
zweite Saugmundlippesecond suction lip
2828
Gehäuse SaugroboterHousing vacuum robot
3030th
TeppichbelagCarpet covering
3232
KanteEdge

Claims (5)

  1. Robotic vacuum cleaner (10) for autonomously cleaning floor surfaces, the robotic vacuum cleaner (10) having a suction mouth (12), the suction mouth (12) being delimited by a suction mouth lip (14), the suction mouth lip (14) having a first suction mouth lip region (16), a second suction mouth lip region (18) and a third suction mouth lip region (20), the first suction mouth lip region (16) being connected to the robotic vacuum cleaner (10), the third suction mouth lip region (20) being designed to make contact with a floor surface to be cleaned, the second suction mouth lip region (18) connecting the first suction mouth lip region (16) to the third suction mouth lip region (20), and the second suction mouth lip region (18) being designed to pivot the suction mouth lip (14) about an axis that extends transversely to the direction of movement of the robotic vacuum cleaner (10),
    characterised in that
    the third suction mouth lip region (20) has a hardness of between 85 and 99 Shore A and preferably a hardness of between 90 and 95 Shore A, the second suction mouth lip region (18) having a hardness of between 40 and 65 Shore A and preferably a hardness of between 45 and 60 Shore A.
  2. Robotic vacuum cleaner (10) according to claim 1,
    characterised in that
    the first suction mouth lip region (16) has a hardness of between 85 and 99 Shore A in a preferred embodiment and a hardness of between 90 and 95 Shore A in a particularly preferred embodiment.
  3. Robotic vacuum cleaner (10) according to either of the preceding claims,
    characterised in that
    the suction mouth (12) is delimited by a second suction mouth lip (26), a first suction mouth lip (24) being arranged in front of the suction mouth (12) and a second suction mouth lip (26) being arranged behind the suction mouth (12).
  4. Robotic vacuum cleaner (10) according to any of the preceding claims,
    characterised in that
    the first suction mouth lip region (16) can be detachably connected to the robotic vacuum cleaner (10).
  5. Robotic vacuum cleaner (10) according to any of the preceding claims,
    characterised in that
    the suction mouth lip (14) can be produced in a multi-component injection moulding process.
EP18183933.3A 2017-08-15 2018-07-17 Suction robot for autonomous cleaning of floor surfaces Active EP3443882B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017118542.9A DE102017118542B3 (en) 2017-08-15 2017-08-15 Vacuum robot for autonomous cleaning of floor surfaces

Publications (3)

Publication Number Publication Date
EP3443882A2 EP3443882A2 (en) 2019-02-20
EP3443882A3 EP3443882A3 (en) 2019-03-20
EP3443882B1 true EP3443882B1 (en) 2020-06-17

Family

ID=62981082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18183933.3A Active EP3443882B1 (en) 2017-08-15 2018-07-17 Suction robot for autonomous cleaning of floor surfaces

Country Status (2)

Country Link
EP (1) EP3443882B1 (en)
DE (1) DE102017118542B3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019209419A1 (en) * 2019-06-27 2020-12-31 Volkswagen Aktiengesellschaft Robot vacuum cleaner with flexible suction nozzle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3445526C2 (en) * 1984-12-13 1995-10-26 Wessel Werk Gmbh Vacuum cleaner nozzle
DE3801757A1 (en) * 1988-01-22 1989-07-27 Wessel Werk Gmbh Vacuum cleaner nozzle
DE29601104U1 (en) * 1996-01-23 1996-05-23 Wessel Werk Gmbh Vacuum cleaner for a vacuum cleaning device
US6108859A (en) * 1998-07-29 2000-08-29 Alto U. S. Inc. High efficiency squeegee
DE102007022256B4 (en) * 2007-05-09 2013-07-25 Miele & Cie. Kg Nozzle for a floor care appliance
EP2999387B1 (en) * 2013-05-23 2020-06-24 Alfred Kärcher SE & Co. KG Floor cleaning device, in particular self-propelled and self-steering floor cleaning appliance
DE102014117418A1 (en) * 2014-11-27 2016-06-02 Miele & Cie. Kg Floor nozzle for a floor care appliance and method for making a floor nozzle for a floor care appliance
DE102015100873A1 (en) * 2015-01-21 2016-07-21 Vorwerk & Co. Interholding Gmbh suction nozzle
CN106073655B (en) * 2016-07-29 2022-05-06 北京小米移动软件有限公司 Scraping strip for cleaning equipment, rolling brush cover, rolling brush assembly and automatic cleaning equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3443882A2 (en) 2019-02-20
EP3443882A3 (en) 2019-03-20
DE102017118542B3 (en) 2018-11-08

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