EP3345523B1 - Vacuum cleaner and floor nozzle for vacuum cleaner - Google Patents

Vacuum cleaner and floor nozzle for vacuum cleaner Download PDF

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Publication number
EP3345523B1
EP3345523B1 EP17202972.0A EP17202972A EP3345523B1 EP 3345523 B1 EP3345523 B1 EP 3345523B1 EP 17202972 A EP17202972 A EP 17202972A EP 3345523 B1 EP3345523 B1 EP 3345523B1
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EP
European Patent Office
Prior art keywords
floor nozzle
floor
sole
base
suction mouth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17202972.0A
Other languages
German (de)
French (fr)
Other versions
EP3345523C0 (en
EP3345523A1 (en
Inventor
Jens Schneider
Alexander CORDES
Martin Behrenswerth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102017115523.6A external-priority patent/DE102017115523A1/en
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3345523A1 publication Critical patent/EP3345523A1/en
Application granted granted Critical
Publication of EP3345523B1 publication Critical patent/EP3345523B1/en
Publication of EP3345523C0 publication Critical patent/EP3345523C0/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools

Definitions

  • the invention relates to a floor nozzle for a vacuum cleaner, with a housing which has a sole facing the floor surface in the processing position, a suction mouth being arranged in the sole, the suction mouth passing through a rear area of the sole, a front area of the sole and side areas the sole is included as well as a vacuum cleaner with such a floor nozzle.
  • Vacuum cleaners are used in private households and businesses to clean surfaces such as textile floor coverings and smooth floors.
  • a floor nozzle of the vacuum cleaner is continuously pushed back and forth on a floor surface.
  • the dust collection effectiveness of the vacuum cleaner depends heavily on the design of the floor nozzle.
  • a floor nozzle with a sole on the sole that is flat along the suction mouth has the disadvantage that when the floor nozzle moves backwards in the processing direction when cleaning long-pile surfaces, the carpet is partially lifted off the floor surface by the user pulling back the floor nozzle.
  • the carpet to be cleaned is lifted in the area of the highest negative pressure, usually in the middle of the elongated suction mouth, while the carpet remains on the floor at the outer ends of the elongated suction mouth due to the lower negative pressure.
  • the slightly curved soles do not comb the carpet to be cleaned in the middle of the suction mouth due to the lack of contact with the floor due to the larger distance, and on the other hand, this lack of contact with the floor leads to a drop in the negative pressure present at the floor nozzle to an area in which optimal cleaning is possible is no longer possible.
  • the design of the floor nozzle is playing an increasingly important role.
  • the dimensioning of vacuum cleaner fans follows a trend towards less power, which initially leads to lower volume flows available at the floor nozzle, so that lower flow velocities generally result at the floor nozzles due to the continuity relationship.
  • the soles of the floor nozzles are also designed to be movable to ensure an optimal cleaning effect.
  • a floor nozzle for a floor care device in which the sole with the sliding sole can be tilted and moved in several directions in order to compensate for uneven floors and to ensure better floor contact.
  • the mobility of the sole is limited by stops and the adaptability of the rigid sole is limited.
  • a floor nozzle for a floor care device in which individual areas of the sole can be moved in order to compensate for floor contours and to seal the suction mouth from the environment.
  • the mobility of the sole is limited by the degrees of freedom in the positioning of the individual areas.
  • the manufacturing effort for such a floor nozzle is relatively high.
  • the invention therefore faces the problem of providing an improved floor nozzle and an improved vacuum cleaner.
  • the floor nozzle can optimally adapt to floor contours during cleaning operation. This means that even with low volume flows, effective cleaning of the floor surface can be achieved with sufficiently high flow velocities.
  • the dust collection effectiveness - especially on carpets - can be advantageously increased, so that good performance classes or dust collection values can be achieved even at low absorption levels.
  • the suction mouth which rests better on the surface, can clean a wide area of the floor surface with a significantly higher flow rate, without the need for higher volume flows.
  • the deformable sole nestles against the floor bellows so that the suction mouths or the suction mouth are at least almost close to the floor covering.
  • the dust collection effectiveness can thereby be increased without there being a significant increase in the pushing forces.
  • the volume flow required for effective cleaning can be further reduced, so that more economical blowers can be installed in the vacuum cleaner.
  • the reduction in volume flows also leads to lower flow losses, especially in bagless separators, so that further energy can be saved here.
  • the floor surface can be replaced by a textile floor covering such as a carpet or carpet or by a hard floor such as. B. a wooden parquet, laminate or a PVC floor covering can be formed.
  • the vacuum cleaner can have a blower to generate a negative pressure, through which the floor nozzle, which is guided over a floor surface to be cleaned, picks up dust and dirt from the floor surface.
  • the user moves the floor nozzle back and forth in the processing direction using pushing and pulling movements. This allows the floor nozzle to slide over the floor surface to be cleaned.
  • the sole of the floor nozzle slides over the carpet, while in the case of hard floors the sole floats at a distance over these floor surfaces, if necessary using spacer bristles.
  • the user can, for example, handle a handle of the vacuum cleaner that is connected to the suction tube.
  • the suction mouth is elongated and runs essentially transversely to the processing direction.
  • Elongated in this context means that the preferably substantially rectangular suction mouth area has a greater length transverse to the processing direction than its width in the processing direction.
  • the suction mouth area is preferably between 20 and 30 cm long transversely to the processing direction and preferably between one and 3 cm wide in the processing direction.
  • the floor nozzle can also be arranged on a self-driving vacuum cleaner, in particular a vacuum robot, so that the processing direction of the floor nozzle corresponds to the direction of travel of the self-driving vacuum cleaner.
  • a vacuum cleaner housing of the vacuum cleaner can have a dust collection chamber in which the dust picked up via the floor nozzle can be collected, for example in a dust bag.
  • the front region of the sole is designed to be deformable.
  • the deformable design of the rear area, the front area and the side areas of the sole enables the sole to be optimally adapted to its approximate shape entire floor area. This means that the suction mouth of the floor nozzle is sealed from the environment in all directions during cleaning operation.
  • the sole is made of an elastic plastic. It is conceivable to form the sole in one piece from an elastic plastic material. This is particularly advantageous in terms of the resulting manufacturing effort and homogeneous deformability over the entire surface of the sole. In an alternative embodiment, it is also conceivable to make the sole from different plastic materials with different properties in terms of deformability, hardness or friction. This means that specific deformation properties can be set in individual areas of the sole in order to further improve the cleaning performance.
  • the sole or sole is constructed in several parts, the individual members of the sole being designed to be pivotable relative to one another.
  • a multi-part sole allows the floor nozzle to adapt excellently to the surface.
  • the sole is also adaptable to changing conditions when the floor nozzle moves forwards and backwards. This adaptability is very easily ensured by the fact that the individual members of the sole are designed to be pivotable relative to one another.
  • the links are each designed to be pivotable relative to one another about a joint axis that runs parallel to the processing direction. Thanks to the joint axes running parallel to the processing direction, the links can be easily adjusted to the surface. The joint axes running in this way prevent movement of the links in the processing direction, so that the edges of the suction mouth delimiting the suction mouth can effectively process the subsurface. The edges of the suction mouth comb the carpet fibers, especially in long-pile carpets, and thus enable the fibers to be cleaned thoroughly.
  • a preferred embodiment provides that at least one member is designed to be pivotable from the rest position in the direction of the floor surface.
  • the possibility of pivoting a link from the rest position towards the floor surface enables a simple but effective adjustment of the floor nozzle to the surface to be cleaned and the changing conditions during forward and backward movement in the processing direction.
  • the development is particularly advantageous in that the sole is constructed in two parts with a joint axis arranged centrally between the two parts.
  • Such a design is particularly characterized by its simple structure and good quality Adaptability of the floor nozzle to the surface to be cleaned.
  • the floor nozzle also optimally corrects the changing conditions when the floor nozzle moves forwards and backwards in the processing direction.
  • the sole is formed from members arranged symmetrically to the center of the suction mouth.
  • the arrangement of several links, which are symmetrical to the center, on the sole of the floor nozzle ensures even cleaning of the floor surface and a high degree of adaptability to the surface to be cleaned and the changing conditions when the floor nozzle moves forwards and backwards in the processing direction.
  • An advantageous embodiment of the invention provides that the links form at least one lateral edge on the sole.
  • the edge-side design of the sole using movable links creates improved adaptability of the floor nozzle to the surface and optimizes corner cleaning, for example on skirting boards or carpet edges.
  • the links are made of a solid plastic.
  • the links made of solid plastic provide a stable and lightweight sole that can be flexibly adapted to the floor being cleaned and the changing conditions when moving forwards and backwards.
  • a preferred embodiment provides that a hinge is formed between the links. Forming a hinge between the links is a simple but effective way to increase the adaptability of the floor nozzle.
  • the hinge defines the joint axis between the two links connected by the hinge.
  • a spring element is arranged between the links, which causes a restoring force that moves the links back into a rest position.
  • the arrangement of a spring element between the members in this way ensures that the floor nozzle is optimally adapted to the floor surface to be cleaned and the changing conditions during forward and backward movement. Lifting the floor nozzle from the ground causes the sole of the floor nozzle to move back to a rest position.
  • an elastomer is arranged as a hinge between the links. Arranging an elastomer as a hinge provides a simple but solid possibility of providing a tight and at the same time adaptable hinge between the links. With this seal between the members it can be effectively achieved that the volume flow available through the blower still flows through the suction mouth formed.
  • the development is particularly advantageous in that the elastomer causes a restoring force that moves the links back into a rest position.
  • a restoring force can also be created, which enables the floor nozzle to be optimally adjusted. If the floor nozzle is lifted from the ground, the elastomer causes the sole of the floor nozzle to move back to a rest position.
  • a preferred embodiment provides that the sole is made of elastic plastic.
  • the design of the sole made of an elastic material offers a particularly adaptable floor nozzle.
  • the suction mouth edge is designed to be deformable with the suction mouth.
  • a suction mouth edge that can be deformed with the suction mouth improves the adaptability of the floor nozzle to the surface to be cleaned and ensures that long-pile carpets in particular are optimally cleaned by the suction mouth edges both in the forward and backward movement of the floor nozzle in the processing direction.
  • This arrangement also offers the advantage that no areas of the surface to be cleaned are left out.
  • a sharp-edged design of the suction mouth edge ensures that the fibers of the carpet pile are effectively bent. This only increases the sliding resistance on the floor surface minimally, as the suction mouth edge, which is adapted to the surface, effectively bends the carpet open.
  • the deformable suction mouth edge effectively bends the carpet fibers over the entire suction mouth area without the user having to exert excessive force during the advance and retraction movements.
  • the underside of the sole in the starting position or in the resting state, extends straight or at least essentially straight transversely to the processing direction.
  • the outer sides of the sole deform downwards in relation to the central area of the sole, creating a curvature in the shape of an upside-down U when viewed from the front.
  • all direction and position information relates to the correct use of the floor nozzle.
  • the subject of the invention is a vacuum cleaner for cleaning and caring for floor surfaces with a fan for generating a negative pressure for picking up dirt by means of an air stream and a separation system for cleaning the picked up air from dirt, the vacuum cleaner already described in more detail below having a floor nozzle according to the previous and following description.
  • a floor nozzle according to the invention is shown purely schematically.
  • the representation according to Figure 1 shows a vacuum cleaner 2 according to the invention with a floor nozzle 1 connected to the vacuum cleaner 2.
  • the vacuum cleaner 1 shown in the exemplary embodiment is a so-called canister vacuum cleaner.
  • the floor nozzle 1 is connected here via its connecting piece 15 to a preferably telescopic suction pipe 22.
  • the floor nozzle 1 has its own housing 3 which is independent of the vacuum cleaner housing 17, 17a.
  • the telescopic suction tube 22 merges into a handle 23, to which a suction hose 12 is connected, which is connected to the vacuum cleaner housing 17, 17a.
  • a blower (not shown) of the vacuum cleaner 2 integrated in the vacuum cleaner housing 17, 17a is operated with electricity via an electrical connection cable 18 in order to generate a negative pressure.
  • dirt and grime are removed from the floor surface 24 ( Fig. 4 ) by an air flow via the suction mouth 6 ( Fig. 5 ) of the floor nozzle 1 and transported via the suction pipe 22 and the suction hose 12 into the housing 17, 17a of the vacuum cleaner 2.
  • a separation system 20 is provided in this housing 17, 17a, which in the exemplary embodiment is designed as a dust bag. This separation system 20 is located in a dust chamber 21 formed by the housing parts 17 and 17a of the vacuum cleaner 2.
  • This dust chamber 21 is accessible and shown open by a folding mechanism between the vacuum cleaner housing parts 17 and 17a, so that the separation system 20 is visible and removable.
  • the dust chamber 21 is closed and a negative pressure is generated.
  • the air flow generated by the negative pressure is freed from dirt and grime in the separation system 20 and led out of the vacuum cleaner 2 via an exhaust air grille 19.
  • the step switch 14 usually also has a switch for actuating the automatic winding system for the connecting cable 18 (not shown) integrated in the vacuum cleaner housing 17, 17a.
  • a manual switch 13 on the handle 23, with which the functions of the vacuum cleaner 2 can be activated.
  • the vacuum cleaner 2 can be switched on and off via the manual switch 13 and power levels of the blower (not shown) can be selected.
  • a user of the vacuum cleaner 1 can grab it by the handle 23 and thus push the floor nozzle 1 back and forth in a pushing and pulling movement in the processing direction 5 marked as a double arrow in order to clean the floor surface 24 ( Fig. 4 ) to clean.
  • the floor nozzle 1 slides over the floor surface 24 to be cleaned ( Fig. 4 ).
  • the sole 4 ( Fig. 3 , 4 , u. 5) of the floor nozzle 1 over the floor surface 24 ( Fig. 4 ), while the sole 4 ( Fig.
  • the floor nozzle 1 also has support elements 16 in the form of wheels, which have a defined distance from the sole 4 ( Fig. 3 , 4 , u. 5) to the floor surfaces to be cleaned 24 ( Fig. 4 ) and ensure easy handling when pushing the floor nozzle 1 back and forth.
  • FIG. 2 Parts of the floor nozzle 1 according to the invention for a vacuum cleaner 2 are shown in a perspective side view.
  • the sole 4 of the floor nozzle 1 is made in one piece.
  • a connecting piece 15 is arranged centrally above the sole 4.
  • the sole 4 shown here is fixed via the suspension elements 26 in the housing 3 of the floor nozzle 1, not shown here.
  • the sole 4 consists of a soft, elastic plastic and is therefore movable along the entire spatial extent. The deformability of the sole 4 enables the sole 4 to move in different directions of movement in order to enable the sole 4 to be optimally adapted to floor contours during cleaning operations.
  • the suction mouth edge 7 formed by the sole 4 is connected to the suction mouth 6 ( Fig. 5 ) designed to be deformable.
  • the suction mouth edge is made in one piece from the same material as the sole. In an alternative embodiment, it is also conceivable to form the suction mouth edge 7 from a dimensionally stable plastic material in order to achieve improved dust mobilization through the suction mouth edge
  • the Figure 3 shows schematically the sole 4 of a floor nozzle 1 according to the invention.
  • the elongated suction mouth 6 runs transversely to the processing direction 5. In the processing direction 5 in front of and behind the suction mouth 6, this is limited by a suction mouth edge formed on the sole 4.
  • the one shown here Suction mouth 6 extends to the side edges 10, 10a of the sole 4.
  • the base area of the suction mouth 6 is delimited by a front area, a rear area and side areas of the sole 4.
  • the surface of the sole facing the floor covering is essentially straight transverse to the processing direction.
  • the front edge of the suction mouth in the processing direction has an approximately straight course.
  • the rear suction mouth edge in the processing direction has a straight course in the area of the connecting piece 15, which is aligned approximately parallel to the front suction mouth edge. At the edge areas, the rear suction mouth edge tapers towards the front suction mouth edge, so that the distance between the front and rear suction mouth edges at the edge areas is reduced.
  • Figure 4 are parts of the floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) shown in a perspective side view.
  • the sole 4 of the floor nozzle 1 has several individual members 8, 8a, 8b, 8c, which are designed to be pivotable relative to one another.
  • the individual members 8, 8a, 8b, 8c of the sole 4 are symmetrical to the center of the suction mouth 6 ( Fig. 5 ) or arranged to the connecting piece 15.
  • the link 8 carries the connecting piece 15, with three links 8a, 8b, 8c being arranged to one another so that they can pivot transversely to the processing direction 5.
  • the respective symmetrical members 8a, 8b, 8c have the same reference numbers in order to simplify the explanation.
  • the outermost member 8c of the sole 4 each forms a lateral edge 10, 10a, up to which the suction mouth 6 (which runs transversely to the processing direction 5) ( Fig. 5 ) suffices.
  • the members 8a, 8b, 8c made of solid plastic are each connected to one another via a hinge 11, 11a, 11b made of elastomer. This elastomer 11, 11a, 11b causes a restoring force that moves the members 8a, 8b, 8c back into the rest position shown here, in which the sole 4 is preferably aligned flat and parallel to the floor surface.
  • the suction mouth edge 7 formed by the sole 4 is connected to the suction mouth 6 ( Fig. 5 ) designed to be deformable.
  • the sole 4 shown here is fixed via the suspension elements 26 in the housing 3 of the floor nozzle 1, not shown here.
  • the Figure 5 shows schematically a floor nozzle 1 according to the invention for a vacuum cleaner for cleaning and maintaining floor surfaces 24 ( Fig. 4 ) from the perspective of the machining direction 5 ( Fig. 1 , 2 , and 5).
  • the floor nozzle 1 has a housing 3 ( Fig. 1 , 3 u. 4), which is in the processing position of the bottom surface 24 ( Fig. 4 ) facing sole 4.
  • the connecting piece 15 is arranged centrally in the housing 3.
  • a hinge made of elastomer 11, 11a, 11b is arranged between the links 8, 8a, 8b, 8c.
  • the hinge axes 9, 9a, 9b running between the individual links 8, 8a, 8b, 8c are arranged near the sole 4.
  • the V-shaped design of the rubber hinges 11, 11a, 11b also causes a restoring force that moves the links 8a, 8b, 8c back into the rest position shown here.
  • a corresponding alignment of the pivotable members 8a, 8b, 8c occurs when the floor nozzle 1 moves forward in the processing direction 5 ( Fig. 1 , 2 , and 5). Because the user exerts pressure on the floor nozzle via the connecting piece, the sole 4 presses into the surface to be cleaned.
  • the Figure 6 shows schematically a floor nozzle 1 according to the invention from the perspective of the processing direction 5 ( Fig. 1 , 2 , and 5).
  • Figure 3 the position of the pivotable members 8a, 8b and 8c on the left side is changed.
  • Such an alignment of the pivotable members 8a, 8b, 8c occurs when the floor nozzle 1 moves backwards in the processing direction 5 ( Fig. 1 , 2 , and 5).
  • the floor nozzle 1 lifts the carpet runner 25 from the floor surface 24.
  • the greater adaptability of the floor nozzle 1 thanks to the deformable sole 4 also enables optimal cleaning in this situation.
  • pivoting movement made possible by these pivot axes 9a, 9b is added to the pivoting movement of the first joint axis 9, so that a particularly adaptable floor nozzle 1 is provided with a large number of links 8, 8a, 8b and 8c and joint axes 9, 9a and 9b.
  • the Figure 7 shows schematically the sole 4 of a floor nozzle 1 according to the invention.
  • the elongated suction mouth 6 runs transversely to the processing direction 5. In the processing direction 5 in front of and behind the suction mouth 6, this is limited by a suction mouth edge 7 formed on the sole 4 .
  • the suction mouth 6 shown here extends to the side edges 10, 10a of the sole 4.
  • the joint axes 9, 9a, 9b, which run parallel to the processing direction 5, are arranged symmetrically to the center of the floor nozzle 1 or the connecting piece 15.
  • the elastomers 11, 11a, 11b form a significantly widened area in the area of the suction mouth 6 in order to enable the members 8a, 8b and 8c on the sole 4 to pivot sufficiently.
  • the surface facing the floor covering is essentially straight transversely to the processing direction.
  • the limitation is preferably done by means of sling means, which are provided by the shape of the connecting sides of the individual links 8. Projections attached or formed on the top of the sole can also serve as slinging means.
  • the stop function can be provided by selecting the hardness of the elastomers designed as a hinge.
  • the floor nozzle 1 can also be designed as part of a self-propelled vacuum cleaner.

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

Description

Die Erfindung betrifft eine Bodendüse für einen Staubsauger, mit einem Gehäuse, das eine in Bearbeitungsstellung der Bodenfläche zugewandte Sohle aufweist, wobei in der Sohle ein Saugmund angeordnet ist, wobei der Saugmund durch einen hinteren Bereich der Sohle, einen vorderen Bereich der Sohle und seitliche Bereiche der Sohle umfasst wird sowie einen Staubsauger mit einer solchen Bodendüse.The invention relates to a floor nozzle for a vacuum cleaner, with a housing which has a sole facing the floor surface in the processing position, a suction mouth being arranged in the sole, the suction mouth passing through a rear area of the sole, a front area of the sole and side areas the sole is included as well as a vacuum cleaner with such a floor nozzle.

Im privaten Haushalt sowie im Gewerbe kommen Staubsauger zur Reinigung von Flächen wie textilen Bodenbelägen und glatten Böden zum Einsatz. Dabei wird zur Staubaufnahme eine Bodendüse des Staubsaugers auf einer Bodenfläche kontinuierlich vor- und zurückgeschoben. Die Staubaufnahmeeffektivität des Staubsaugers hängt dabei stark von der Gestaltung der Bodendüse ab. Eine Bodendüse mit einer entlang des Saugmundes ebenen Sohle an der Sohle hat den Nachteil, dass diese bei der Rückwärtsbewegung der Bodendüse in Bearbeitungsrichtung bei der Reinigung von etwa langflorigen Untergründen den Teppich durch das Zurückziehen der Bodendüse durch den Benutzer teilweise von der Bodenfläche anhebt. So wird der zu reinigende Teppich im Bereich des höchsten Unterdruckes, in der Regel in der Mitte des länglichen Saugmundes, angehoben, während der Teppich an den äußeren Enden des länglichen Saugmundes, aufgrund des geringeren Unterdruckes, hier auf der Bodenfläche liegen bleibt. Dieses teilweise Anheben des Teppichs führt zu einem ungenügenden Bodenkontakt, so dass der Unterdruck an der Bodendüse in einen Bereich abfällt, in dem eine effektive Staubaufnahme nicht mehr möglich ist. Um diesem Problem zu entgegnen, sind aus dem Stand der Technik leicht gewölbte Sohlen bekannt. Diese haben jedoch den Nachteil, dass sie bei der Vorwärtsbewegung der Bodendüse in Bearbeitungsrichtung nicht optimal auf dem zu reinigenden Untergrund aufliegen und beispielsweise langflorige Teppiche, aufgrund des fehlenden Bodenkontakts, nicht optimal reinigen. Zum einen kämmen die leicht gewölbten Sohlen den zu reinigenden Teppich in der Mitte des Saugmundes aufgrund des fehlenden Bodenkontakts durch den größeren Abstand nicht, zum anderen führt dieser fehlende Bodenkontakt zu einem Abfall des an der Bodendüse vorliegenden Unterdruckes in einen Bereich, in dem eine optimale Reinigung nicht mehr möglich ist. Im Rahmen der Reduzierung von Energieverbräuchen bei Staubsaugern spielt die Ausgestaltung der Bodendüse eine zunehmend wichtigere Rolle. Die Dimensionierung von Staubsaugergebläsen folgt einem Trend hin zu weniger Leistung, was erstmal zu geringeren, an der Bodendüse zur Verfügung stehenden, Volumenströmen führt, sodass sich aufgrund der Kontinuitätsbeziehung an den Bodendüsen in der Regel geringere Strömungsgeschwindigkeiten ergeben. Um dennoch ausreichend Staub aufzunehmen, werden die Sohlen der Bodendüsen zur Gewährleistung eines optimalen Reinigungseffektes außerdem beweglich ausgebildet.Vacuum cleaners are used in private households and businesses to clean surfaces such as textile floor coverings and smooth floors. To collect dust, a floor nozzle of the vacuum cleaner is continuously pushed back and forth on a floor surface. The dust collection effectiveness of the vacuum cleaner depends heavily on the design of the floor nozzle. A floor nozzle with a sole on the sole that is flat along the suction mouth has the disadvantage that when the floor nozzle moves backwards in the processing direction when cleaning long-pile surfaces, the carpet is partially lifted off the floor surface by the user pulling back the floor nozzle. The carpet to be cleaned is lifted in the area of the highest negative pressure, usually in the middle of the elongated suction mouth, while the carpet remains on the floor at the outer ends of the elongated suction mouth due to the lower negative pressure. This partial lifting of the carpet leads to insufficient contact with the floor, so that the negative pressure at the floor nozzle drops to an area in which effective dust absorption is no longer possible. To counteract this problem, slightly curved soles are known from the prior art. However, these have the disadvantage that they do not rest optimally on the surface to be cleaned when the floor nozzle moves forward in the processing direction and, for example, do not optimally clean long-pile carpets due to the lack of floor contact. On the one hand, the slightly curved soles do not comb the carpet to be cleaned in the middle of the suction mouth due to the lack of contact with the floor due to the larger distance, and on the other hand, this lack of contact with the floor leads to a drop in the negative pressure present at the floor nozzle to an area in which optimal cleaning is possible is no longer possible. When it comes to reducing energy consumption in vacuum cleaners, the design of the floor nozzle is playing an increasingly important role. The dimensioning of vacuum cleaner fans follows a trend towards less power, which initially leads to lower volume flows available at the floor nozzle, so that lower flow velocities generally result at the floor nozzles due to the continuity relationship. In order to still absorb enough dust, The soles of the floor nozzles are also designed to be movable to ensure an optimal cleaning effect.

Aus der DE 196 08 188 C2 ist eine Bodendüse für ein Bodenpflegegerät bekannt, wobei hier die Sohle mit der Gleitsohle in mehrere Richtungen geneigt und bewegt werden kann, um Bodenunebenheiten auszugleichen und einen besseren Bodenkontakt zu gewährleisten. Die Beweglichkeit der Sohle ist allerdings durch Anschläge begrenzt und die Anpassungsfähigkeit der starren Sohle ist begrenzt.From the DE 196 08 188 C2 a floor nozzle for a floor care device is known, in which the sole with the sliding sole can be tilted and moved in several directions in order to compensate for uneven floors and to ensure better floor contact. However, the mobility of the sole is limited by stops and the adaptability of the rigid sole is limited.

Aus der WO 2017/051148 A1 ist eine Bodendüse für ein Bodenpflegegerät bekannt, wobei hier einzelne Bereiche der Sohle bewegt werden können, um Bodenkonturen auszugleichen und den Saugmund gegenüber der Umgebung abzudichten. Die Beweglichkeit der Sohle ist allerdings durch die Freiheitsgrade der Lagerung der einzelnen Bereiche begrenzt. Zudem ist der Fertigungsaufwand einer solchen Bodendüse relativ hoch.From the WO 2017/051148 A1 A floor nozzle for a floor care device is known, in which individual areas of the sole can be moved in order to compensate for floor contours and to seal the suction mouth from the environment. However, the mobility of the sole is limited by the degrees of freedom in the positioning of the individual areas. In addition, the manufacturing effort for such a floor nozzle is relatively high.

Aus der EP 2 937 029 A1 und der EP 2 965 678 A1 sind Bodendüsen für Staubsauger bekannt, welche eine der Bodenfläche zugewandte Sohle aufweisen, in welcher ein Saugmund angeordnet ist. Dabei sind an mehreren Seiten des Saugmundes elastische Dichtungselemente an der Sohle der Bodendüse angeordnet, welche den Saugmund gegenüber der Umgebung abdichten.From the EP 2 937 029 A1 and the EP 2 965 678 A1 Floor nozzles for vacuum cleaners are known, which have a sole facing the floor surface and in which a suction mouth is arranged. Elastic sealing elements are arranged on several sides of the suction mouth on the sole of the floor nozzle, which seal the suction mouth from the environment.

Nachteilig an den hier beschriebenen Lösungen ist, dass die Anpassungsfähigkeit der Bodendüsen an den zu reinigenden Untergrund begrenzt ist und so eine optimale Reinigung des Untergrundes nicht gewährleistet ist.The disadvantage of the solutions described here is that the ability of the floor nozzles to adapt to the surface to be cleaned is limited and optimal cleaning of the surface is therefore not guaranteed.

Der Erfindung stellt sich somit das Problem, eine verbesserte Bodendüse und einen verbesserten Staubsauger anzugeben.The invention therefore faces the problem of providing an improved floor nozzle and an improved vacuum cleaner.

Erfindungsgemäß wird unter anderem dieses Problem durch eine Bodendüse mit den Merkmalen des Patentanspruchs 1 und einen Staubsauger gemäß Anspruch 15 gelöst.According to the invention, this problem is solved, among other things, by a floor nozzle with the features of patent claim 1 and a vacuum cleaner according to claim 15.

Dadurch, dass der hintere Bereich und die seitlichen Bereiche der Sohle verformbar ausgebildet sind, kann die Bodendüse sich optimal im Reinigungsbetrieb an Bodenkonturen anpassen. Hierdurch kann auch mit geringen Volumenströmen eine effektive Reinigung der Bodenfläche mit ausreichend hohen Strömungsgeschwindigkeiten erreicht werden.Because the rear area and the side areas of the sole are designed to be deformable, the floor nozzle can optimally adapt to floor contours during cleaning operation. This means that even with low volume flows, effective cleaning of the floor surface can be achieved with sufficiently high flow velocities.

Mit einer anpassungsfähigen Bodendüse kann die Staubaufnahmeeffektivität - insbesondere auf Teppichböden - vorteilhaft erhöht werden, sodass auch bei niedrigen Aufnahmeleistungen gute Performanceklassen bzw. Staubaufnahmewerte erreicht werden können. Der auf dem Untergrund besser aufliegende Saugmund kann einen breiten Bereich der Bodenfläche mit einer deutlich höheren Strömungsgeschwindigkeit reinigen, ohne dass hierfür höhere Volumenströme erforderlich wären. Die verformbare Sohle schmiegt sich an den Bodenbalg an, sodass die Saugmundanten bzw. der Saugmund zumindest nahezu dicht am Bodenbelag anliegen. Die Staubaufnahmeeffektivität lässt sich hierdurch steigern, ohne dass es zu einer erheblichen Erhöhung der Schiebekräfte kommt. Außerdem kann der erforderliche Volumenstrom für eine effektive Reinigung weiter gesenkt werden, so dass sparsamere Gebläse im Staubsauger verbaut werden können. Die Verringerung der Volumenströme führt außerdem zu geringeren Strömungsverlusten, insbesondere bei beutellosen Abscheidern, sodass hier weiter Energie eingespart werden kann.With an adaptable floor nozzle, the dust collection effectiveness - especially on carpets - can be advantageously increased, so that good performance classes or dust collection values can be achieved even at low absorption levels. The suction mouth, which rests better on the surface, can clean a wide area of the floor surface with a significantly higher flow rate, without the need for higher volume flows. The deformable sole nestles against the floor bellows so that the suction mouths or the suction mouth are at least almost close to the floor covering. The dust collection effectiveness can thereby be increased without there being a significant increase in the pushing forces. In addition, the volume flow required for effective cleaning can be further reduced, so that more economical blowers can be installed in the vacuum cleaner. The reduction in volume flows also leads to lower flow losses, especially in bagless separators, so that further energy can be saved here.

Die Bodenfläche kann durch einen textilen Bodenbelag wie einen Teppich oder Teppichboden oder durch einen Hartboden wie z. B. ein Holzparkett, Laminat oder einen PVC-Bodenbelag gebildet werden.The floor surface can be replaced by a textile floor covering such as a carpet or carpet or by a hard floor such as. B. a wooden parquet, laminate or a PVC floor covering can be formed.

Der Staubsauger kann ein Gebläse zur Erzeugung eines Unterdruckes aufweisen, durch den die über eine zu reinigende Bodenfläche geführte Bodendüse Staub und Schmutz von der Bodenfläche aufnimmt. Hierzu wird die Bodendüse durch den Benutzer mittels Schub- und Zugbewegungen in Bearbeitungsrichtung vor und zurück bewegt. Hierdurch gleitet die Bodendüse über die zu reinigende Bodenfläche. Insbesondere bei langflorigen Teppichen gleitet die Sohle der Bodendüse über den Teppich, während die Sohle bei Hartböden beabstandet, gegebenenfalls durch Abstandsborsten, über diese Bodenflächen hinweg schwebt. Der Benutzer kann dazu beispielsweise einen mit dem Saugrohr verbundenen Griff des Staubsaugers handhaben. Damit die Reinigung und Pflege des Bodenbelags möglichst effektiv ausgeführt werden kann, ist der Saugmund länglich ausgebildet und verläuft im Wesentlichen quer zur Bearbeitungsrichtung. Länglich ausgebildet bedeutet in diesem Zusammenhang, dass der vorzugsweise im Wesentlichen rechteckige Saugmundbereich eine größere Länge quer zur Bearbeitungsrichtung aufweist, als Breite in Bearbeitungsrichtung. Der Saugmundbereich ist vorzugsweise zwischen 20 und 30 cm quer zur Bearbeitungsrichtung lang und vorzugsweise zwischen einem und 3 cm in Bearbeitungsrichtung breit. Die Bodendüse kann auch an einem selbstständig fahrenden Staubsauger, insbesondere Saugroboter, angeordnet sein, sodass die Bearbeitungsrichtung der Bodendüse der Fahrtrichtung des selbstständig fahrenden Staubsaugers entspricht. Ein Staubsaugergehäuse des Staubsaugers kann eine Staubaufnahmekammer aufweisen, in welcher der über die Bodendüse aufgenommene Staub beispielsweise in einem Staubbeutel gesammelt werden kann.The vacuum cleaner can have a blower to generate a negative pressure, through which the floor nozzle, which is guided over a floor surface to be cleaned, picks up dust and dirt from the floor surface. To do this, the user moves the floor nozzle back and forth in the processing direction using pushing and pulling movements. This allows the floor nozzle to slide over the floor surface to be cleaned. Particularly in the case of long-pile carpets, the sole of the floor nozzle slides over the carpet, while in the case of hard floors the sole floats at a distance over these floor surfaces, if necessary using spacer bristles. To do this, the user can, for example, handle a handle of the vacuum cleaner that is connected to the suction tube. So that the cleaning and care of the floor covering can be carried out as effectively as possible, the suction mouth is elongated and runs essentially transversely to the processing direction. Elongated in this context means that the preferably substantially rectangular suction mouth area has a greater length transverse to the processing direction than its width in the processing direction. The suction mouth area is preferably between 20 and 30 cm long transversely to the processing direction and preferably between one and 3 cm wide in the processing direction. The floor nozzle can also be arranged on a self-driving vacuum cleaner, in particular a vacuum robot, so that the processing direction of the floor nozzle corresponds to the direction of travel of the self-driving vacuum cleaner. A vacuum cleaner housing of the vacuum cleaner can have a dust collection chamber in which the dust picked up via the floor nozzle can be collected, for example in a dust bag.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden abhängigen Ansprüchen.Advantageous refinements and further developments of the invention result from the following dependent claims.

Besonders bevorzugt ist, dass der vordere Bereich der Sohle verformbar ausgebildet ist. Die verformbare Ausbildung des hinteren Bereichs, des vorderen Bereichs und der seitlichen Bereiche der Sohle ermöglicht eine optimale Anpassung der Sohle über ihre annähernd gesamte Grundfläche. Hierdurch wird der Saugmund der Bodendüse im Reinigungsbetrieb in sämtliche Richtungen gegenüber der Umgebung abgedichtet.It is particularly preferred that the front region of the sole is designed to be deformable. The deformable design of the rear area, the front area and the side areas of the sole enables the sole to be optimally adapted to its approximate shape entire floor area. This means that the suction mouth of the floor nozzle is sealed from the environment in all directions during cleaning operation.

Weiterhin ist es bevorzugt, dass die Sohle aus einem elastischen Kunststoff gebildet ist. Dabei ist es denkbar die Sohle einstückig aus einem elastischen Kunststoffmaterial auszubilden. Dies ist insbesondere vorteilhaft in Bezug auf die resultierenden Fertigungsaufwände und eine homogene Verformbarkeit über die gesamte Fläche der Sohle. In einer alternativen Ausführungsform ist es aber auch denkbar, die Sohle aus verschiedenen Kunststoffmaterialien mit unterschiedlichen Eigenschaften in Bezug auf Verformbarkeit, Härte oder Reibung auszubilden. Dadurch können in einzelnen Bereichen der Sohle spezifische Verformungseigenschaften eingestellt werden um die Reinigungsleistung weiter zu verbessern.Furthermore, it is preferred that the sole is made of an elastic plastic. It is conceivable to form the sole in one piece from an elastic plastic material. This is particularly advantageous in terms of the resulting manufacturing effort and homogeneous deformability over the entire surface of the sole. In an alternative embodiment, it is also conceivable to make the sole from different plastic materials with different properties in terms of deformability, hardness or friction. This means that specific deformation properties can be set in individual areas of the sole in order to further improve the cleaning performance.

Gemäß einer erfindungsgemäßen Ausgestaltung der Erfindung ist vorgesehen, dass die Sohle oder Sohle mehrgliedrig aufgebaut ist, wobei die einzelnen Glieder der Sohle gegeneinander schwenkbeweglich ausgebildet sind. Eine mehrgliedrig aufgebaute Sohle ermöglicht eine hervorragende Anpassungsfähigkeit der Bodendüse an den Untergrund. Auch bei der Vorwärts- und Rückwärtsbewegung der Bodendüse ist die Sohle an die wechselnden Bedingungen anpassungsfähig. Diese Anpassungsfähigkeit wird sehr einfach dadurch gewährleistet, dass die einzelnen Glieder der Sohle gegeneinander schwenkbeweglich ausgebildet sind.According to an inventive embodiment of the invention, it is provided that the sole or sole is constructed in several parts, the individual members of the sole being designed to be pivotable relative to one another. A multi-part sole allows the floor nozzle to adapt excellently to the surface. The sole is also adaptable to changing conditions when the floor nozzle moves forwards and backwards. This adaptability is very easily ensured by the fact that the individual members of the sole are designed to be pivotable relative to one another.

Eine vorteilhafte Ausführung ist, dass die Glieder jeweils um eine parallel zur Bearbeitungsrichtung verlaufende Gelenkachse zueinander schwenkbeweglich ausgebildet sind. Durch die parallel zur Bearbeitungsrichtung verlaufenden Gelenkachsen sind die Glieder einfach gegenüber dem Untergrund anpassbar aufgehängt. Die derartig verlaufenden Gelenkachsen verhindern eine Bewegung der Glieder in Bearbeitungsrichtung, sodass die den Saugmund begrenzenden Saugmundkanten wirksam den Untergrund bearbeiten können. Hierbei kämmen die Saugmundkanten insbesondere bei langflorigen Teppichen die Teppichfasern auf und ermöglichen so eine tiefgehende Reinigung der Fasern.An advantageous embodiment is that the links are each designed to be pivotable relative to one another about a joint axis that runs parallel to the processing direction. Thanks to the joint axes running parallel to the processing direction, the links can be easily adjusted to the surface. The joint axes running in this way prevent movement of the links in the processing direction, so that the edges of the suction mouth delimiting the suction mouth can effectively process the subsurface. The edges of the suction mouth comb the carpet fibers, especially in long-pile carpets, and thus enable the fibers to be cleaned thoroughly.

Eine bevorzugte Ausführung sieht vor, dass mindestens ein Glied aus Ruhestellung in Richtung der Bodenfläche schwenkbeweglich ausgebildet ist. Die Verschwenkmöglichkeit eines Gliedes aus der Ruhestellung in Richtung der Bodenfläche ermöglicht eine einfache, aber wirksame Anpassung der Bodendüse an den zu reinigenden Untergrund und die wechselnden Bedingungen bei Vor- und Rückwärtsbewegung in Bearbeitungsrichtung.A preferred embodiment provides that at least one member is designed to be pivotable from the rest position in the direction of the floor surface. The possibility of pivoting a link from the rest position towards the floor surface enables a simple but effective adjustment of the floor nozzle to the surface to be cleaned and the changing conditions during forward and backward movement in the processing direction.

Besonders vorteilhaft ist die Weiterbildung, dass die Sohle zweigliederig aufgebaut ist mit einer mittig zwischen den beiden Gliedern angeordneten Gelenkachse. Eine solche Ausgestaltung zeichnet sich besonders durch den einfachen Aufbau und die gute Anpassungsfähigkeit der Bodendüse an den zu reinigenden Untergrund aus. Auch die wechselnden Bedingungen bei Vor- und Rückwärtsbewegung der Bodendüse in Bearbeitungsrichtung werden von der Bodendüse optimal korrigiert.The development is particularly advantageous in that the sole is constructed in two parts with a joint axis arranged centrally between the two parts. Such a design is particularly characterized by its simple structure and good quality Adaptability of the floor nozzle to the surface to be cleaned. The floor nozzle also optimally corrects the changing conditions when the floor nozzle moves forwards and backwards in the processing direction.

Weiter vorteilhaft ist die Ausgestaltung, dass die Sohle aus symmetrisch zur Mitte des Saugmundes angeordneten Gliedern gebildet ist. Die Anordnung mehrerer symmetrisch zur Mitte ausgebildeter Glieder an der Sohle der Bodendüse sorgt für eine gleichmäßige Reinigung der Bodenfläche und eine hohe Anpassungsfähigkeit an den zu reinigenden Untergrund und die wechselnden Bedingungen bei Vor- und Rückwärtsbewegung der Bodendüse in Bearbeitungsrichtung.Another advantageous embodiment is that the sole is formed from members arranged symmetrically to the center of the suction mouth. The arrangement of several links, which are symmetrical to the center, on the sole of the floor nozzle ensures even cleaning of the floor surface and a high degree of adaptability to the surface to be cleaned and the changing conditions when the floor nozzle moves forwards and backwards in the processing direction.

Eine vorteilhafte Ausführungsform der Erfindung sieht vor, dass die Glieder mindestens einen seitlichen Rand an der Sohle bilden. Die randseitige Ausbildung der Sohle durch bewegliche Glieder schafft eine verbesserte Anpassungsfähigkeit der Bodendüse an den Untergrund und optimiert die Eckreinigung, beispielsweise an Fußleisten oder Teppichkanten.An advantageous embodiment of the invention provides that the links form at least one lateral edge on the sole. The edge-side design of the sole using movable links creates improved adaptability of the floor nozzle to the surface and optimizes corner cleaning, for example on skirting boards or carpet edges.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass die Glieder aus einem festen Kunststoff gebildet sind. Die aus festem Kunststoff gebildeten Glieder bieten eine stabile und leichte Sohle, die flexibel an den zu reinigenden Boden und die wechselnden Bedingungen bei Vor- und Rückwärtsbewegung anpassbar ist.According to an advantageous embodiment of the invention it is provided that the links are made of a solid plastic. The links made of solid plastic provide a stable and lightweight sole that can be flexibly adapted to the floor being cleaned and the changing conditions when moving forwards and backwards.

Eine bevorzugte Ausführung sieht vor, dass zwischen den Gliedern ein Scharnier gebildet ist. Die Ausbildung eines Scharniers zwischen den Gliedern stellt eine einfache aber wirksame Möglichkeit dar, die Anpassungsfähigkeit der Bodendüse zu erhöhen. Das Scharnier legt die Gelenkachse zwischen den beiden durch das Scharnier verbundenen Gliedern fest.A preferred embodiment provides that a hinge is formed between the links. Forming a hinge between the links is a simple but effective way to increase the adaptability of the floor nozzle. The hinge defines the joint axis between the two links connected by the hinge.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass zwischen den Gliedern ein Federelement angeordnet ist, das eine Rückstellkraft bewirkt, die die Glieder zurück in eine Ruhestellung bewegt. Die derartige Anordnung eines Federelements zwischen den Gliedern bewirkt eine optimale Anpassung der Bodendüse an die zu reinigende Bodenfläche und die wechselnden Bedingungen bei Vor- und Rückwärtsbewegung. Ein Abheben der Bodendüse vom Untergrund bewirkt, sodass sich die Sohle der Bodendüse in eine Ruhestellung zurück bewegt.According to an advantageous embodiment of the invention, it is provided that a spring element is arranged between the links, which causes a restoring force that moves the links back into a rest position. The arrangement of a spring element between the members in this way ensures that the floor nozzle is optimally adapted to the floor surface to be cleaned and the changing conditions during forward and backward movement. Lifting the floor nozzle from the ground causes the sole of the floor nozzle to move back to a rest position.

Eine vorteilhafte Ausführung ist, dass zwischen den Gliedern ein Elastomer als Scharnier angeordnet ist. Mit der Anordnung eines Elastomers als Scharnier ist eine einfache aber solide Möglichkeit gegeben ein dichtes und zugleich anpassungsfähiges Scharnier zwischen den Gliedern vorzusehen. Mit dieser Abdichtung zwischen den Gliedern kann wirksam erreicht werden, dass der durch das Gebläse zur Verfügung stehende Volumenstrom dennoch durch den gebildeten Saugmund strömt.An advantageous embodiment is that an elastomer is arranged as a hinge between the links. Arranging an elastomer as a hinge provides a simple but solid possibility of providing a tight and at the same time adaptable hinge between the links. With this seal between the members it can be effectively achieved that the volume flow available through the blower still flows through the suction mouth formed.

Besonders vorteilhaft ist die Weiterbildung, dass das Elastomer eine Rückstellkraft bewirkt, die die Glieder zurück in eine Ruhestellung bewegt. Mit der Verwendung eines Elastomers als Scharnier kann auch eine Rückstellkraft bewirkt werden, die eine optimale Anpassung der Bodendüse ermöglicht. Wird die Bodendüse vom Untergrund angehoben, bewirkt das Elastomer, dass sich die Sohle der Bodendüse in eine Ruhestellung zurück bewegt.The development is particularly advantageous in that the elastomer causes a restoring force that moves the links back into a rest position. By using an elastomer as a hinge, a restoring force can also be created, which enables the floor nozzle to be optimally adjusted. If the floor nozzle is lifted from the ground, the elastomer causes the sole of the floor nozzle to move back to a rest position.

Eine bevorzugte Ausführung sieht vor, dass die Sohle aus elastischem Kunststoff gebildet ist. Die Ausgestaltung der Sohle aus einem elastischen Werkstoff bietet eine besonders anpassungsfähige Bodendüse.A preferred embodiment provides that the sole is made of elastic plastic. The design of the sole made of an elastic material offers a particularly adaptable floor nozzle.

Eine vorteilhafte Ausführung ist, dass die Saugmundkante mit dem Saugmund verformbar ausgebildet ist. Eine mit dem Saugmund verformbare Saugmundkante verbessert die Anpassungsfähigkeit der Bodendüse an den zu reinigenden Untergrund und stellt sicher, dass insbesondere langflorige Teppiche optimal von den Saugmundkanten sowohl in der Vorals auch in der Rückwärtsbewegung der Bodendüse in Bearbeitungsrichtung gereinigt werden. Diese Anordnung bietet zudem den Vorteil, dass hierdurch keine Bereiche der zu reinigenden Oberfläche ausgelassen werden. Eine scharfkantige Ausgestaltung der Saugmundkante sorgt für eine wirksame Aufbiegung der Fasern des Teppichflors. Hierdurch wird der Schiebewiderstand auf der Bodenfläche nur minimal erhöht, da die an den Untergrund angepasste Saugmundkante den Teppich wirksam aufbiegt. Durch die verformbare Saugmundkante werden die überstrichenen Teppichfasern wirksam über den gesamten Saugmundbereich aufgebogen, ohne dass ein übermäßiger Kraftaufwand durch den Benutzer bei der Vorschub- und Rückzugbewegung erforderlich ist.An advantageous embodiment is that the suction mouth edge is designed to be deformable with the suction mouth. A suction mouth edge that can be deformed with the suction mouth improves the adaptability of the floor nozzle to the surface to be cleaned and ensures that long-pile carpets in particular are optimally cleaned by the suction mouth edges both in the forward and backward movement of the floor nozzle in the processing direction. This arrangement also offers the advantage that no areas of the surface to be cleaned are left out. A sharp-edged design of the suction mouth edge ensures that the fibers of the carpet pile are effectively bent. This only increases the sliding resistance on the floor surface minimally, as the suction mouth edge, which is adapted to the surface, effectively bends the carpet open. The deformable suction mouth edge effectively bends the carpet fibers over the entire suction mouth area without the user having to exert excessive force during the advance and retraction movements.

Für alle Ausführungen gilt, dass in der Ausgangslage oder im Ruhezustand die Unterseite der Sohle quer zur Bearbeitungsrichtung gerade oder zumindest im Wesentlichen sich gerade erstreckt. Im Fall einer Verformung verformen sich die Außenseiten der Sohle bezogen auf den zentralen Bereich der Sohle nach unten, sodass von vorn betrachtet eine Krümmung in Form eines umgedrehten Us entsteht. Insgesamt beziehen sich alle Richtungs- und Positionsangaben auf den betriebsgemäßen Gebrauch der Bodendüse.For all versions, in the starting position or in the resting state, the underside of the sole extends straight or at least essentially straight transversely to the processing direction. In the event of a deformation, the outer sides of the sole deform downwards in relation to the central area of the sole, creating a curvature in the shape of an upside-down U when viewed from the front. Overall, all direction and position information relates to the correct use of the floor nozzle.

Ferner ist Gegenstand der Erfindung ein Staubsauger zur Reinigung und Pflege von Bodenflächen mit einem Gebläse zur Erzeugung eines Unterdruckes zur Aufnahme von Schmutz mittels eines Luftstromes und einem Abscheidesystem zur Reinigung der aufgenommenen Luft vom Schmutz, wobei der bereits und im Folgenden näher beschriebene Staubsauger eine Bodendüse gemäß der vorherigen und nachfolgenden Beschreibung aufweist.Furthermore, the subject of the invention is a vacuum cleaner for cleaning and caring for floor surfaces with a fan for generating a negative pressure for picking up dirt by means of an air stream and a separation system for cleaning the picked up air from dirt, the vacuum cleaner already described in more detail below having a floor nozzle according to the previous and following description.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aufgrund der nachfolgenden Beschreibung sowie anhand der Zeichnungen. Ausführungsbeispiele der Erfindung sind in den folgenden Zeichnungen rein schematisch dargestellt und werden nachfolgend näher beschrieben. Einander entsprechende Gegenstände oder Elemente sind in allen Figuren mit den gleichen Bezugszeichen versehen. Es zeigen:

Figur 1
Erfindungsgemäßer Staubsauger mit Bodendüse;
Figur 2
Erfindungsgemäße Bodendüse mit eingliedriger Sohle in perspektivischer Seitenansicht;
Figur 3
Erfindungsgemäße Bodendüse mit eingliedriger Sohle in Draufsicht;
Figur 4
Erfindungsgemäße Bodendüse mit mehrgliedriger Sohle in perspektivischer Seitenansicht;
Figur 5
Erfindungsgemäße Bodendüse mit mehrgliedriger Sohle in Seitenansicht;
Figur 6
Erfindungsgemäße Bodendüse mit mehrgliedriger Sohle in Seitenansicht
Figur 7
Erfindungsgemäße Bodendüse mit mehrgliedriger Sohle in Draufsicht.
Further features, details and advantages of the invention emerge from the following description and the drawings. Embodiments of the Invention are shown purely schematically in the following drawings and are described in more detail below. Corresponding objects or elements are provided with the same reference numbers in all figures. Show it:
Figure 1
Vacuum cleaner according to the invention with floor nozzle;
Figure 2
Floor nozzle according to the invention with a single-part sole in a perspective side view;
Figure 3
Floor nozzle according to the invention with a single-part sole in plan view;
Figure 4
Floor nozzle according to the invention with a multi-part sole in a perspective side view;
Figure 5
Floor nozzle according to the invention with a multi-part sole in side view;
Figure 6
Floor nozzle according to the invention with a multi-part sole in side view
Figure 7
Floor nozzle according to the invention with a multi-part sole in plan view.

In den Figuren mit dem Bezugszeichen 1 bezeichnet ist eine erfindungsgemäße Bodendüse rein schematisch dargestellt. Die Darstellung gemäß Figur 1 zeigt einen erfindungsgemäßen Staubsauger 2 mit einer an den Staubsauger 2 angeschlossenen Bodendüse 1. Bei dem im Ausführungsbeispiel dargestellten Staubsauger 1 handelt es sich um einen sogenannten Kanister-Staubsauger. Die Bodendüse 1 ist hier über ihren Anschlussstutzen 15 mit einem vorzugsweise teleskopierbar ausgestalteten Saugrohr 22 verbunden. Weiterhin weist die Bodendüse 1 bei diesem gezeigten Ausführungsbeispiel ein eigenes vom Staubsaugergehäuse 17, 17a unabhängiges Gehäuse 3 auf. Das teleskopierbare Saugrohr 22 geht in einen Handgriff 23 über, an dem ein Saugschlauch 12 angeschlossen ist, der mit dem Staubsaugergehäuse 17, 17a verbunden ist. Über ein elektrisches Anschlusskabel 18 wird ein in dem Staubsaugergehäuse 17, 17a integriertes (nicht gezeigtes) Gebläse des Staubsaugers 2 mit Strom betrieben, um einen Unterdruck zu erzeugen. Mittels dieses Unterdruckes werden Schmutz und Dreck von der zu reinigenden Bodenfläche 24 (Fig. 4) durch einen Luftstrom über den Saugmund 6 (Fig. 5) der Bodendüse 1 aufgenommen und über das Saugrohr 22 und den Saugschlauch 12 in das Gehäuse 17, 17a des Staubsaugers 2 abtransportiert. In diesem Gehäuse 17, 17a vorgesehen ist ein Abscheidesystem 20, welches im Ausführungsbeispiel als Staubbeutel ausgebildet ist. Dieses Abscheidesystem 20 befindet sich in einem durch die Gehäuseteile 17 und 17a des Staubsaugers 2 gebildeten Staubraum 21. Dieser Staubraum 21 ist durch einen Klappmechanismus zwischen den Staubsaugergehäuseteilen 17 und 17a zugänglich und geöffnet dargestellt, sodass das Abscheidesystem 20 sichtbar und entnehmbar ist. Für den Betrieb des Staubsaugers 2 wird der Staubraum 21 geschlossen und ein Unterdruck erzeugt. Der durch den Unterdruck erzeugte Luftstrom wird in dem Abscheidesystem 20 von Schmutz und Dreck befreit und über ein Abluftgitter 19 aus dem Staubsauger 2 herausgeleitet. Zum Ein- und Ausschalten des Staubsaugers 2 weist dieser eine Trittschaltung 14 auf. Diese Trittschaltung 14 umfasst Schalter, die ausreichend groß sind, damit ein Benutzer diese mit dem Fuß betätigen kann. Die Trittschaltung 14 weist üblicherweise auch einen Schalter zur Betätigung der im Staubsaugergehäuse 17, 17a integrierten (nicht gezeigten) Wickelautomatik für das Anschlusskabel 18 auf. An dem Handgriff 23 befindet sich zudem eine Handschaltung 13, mit der Funktionen des Staubsaugers 2 aktiviert werden können. Außerdem kann der Staubsauger 2 über die Handschaltung 13 ein- und ausgeschaltet werden und es können Leistungsstufen des (nicht gezeigten) Gebläses ausgewählt werden. Ein Benutzer des Staubsaugers 1 kann diesen an dem Handgriff 23 ergreifen und so die Bodendüse 1 in einer mittels einer Schub- und Zugbewegung in der als Doppelpfeil gekennzeichneten Bearbeitungsrichtung 5 vor- und zurückschieben, um die Bodenfläche 24 (Fig. 4) zu reinigen. Hierbei gleitet die Bodendüse 1 über die zu reinigende Bodenfläche 24 (Fig. 4). Besonders bei langflorigen Teppichen gleitet die Sohle 4 (Fig. 3, 4, u. 5) der Bodendüse 1 über die Bodenfläche 24 (Fig. 4), während die Sohle 4 (Fig. 3, 4, u. 5) bei Hartböden beanstandet, gegebenenfalls durch Abstandsborsten, über diese Bodenflächen 24 (Fig. 4) hinweg schwebt. Im dargestellten Ausführungsbeispiel weist die Bodendüse 1 außerdem Abstützelemente 16 in Form von Rädern auf, welche einen definierten Abstand der Sohle 4 (Fig. 3, 4, u. 5) zu den zu reinigenden Bodenflächen 24 (Fig. 4) und eine einfache Handhabung beim Vor- und Zurückschieben der Bodendüse 1 sicherstellen.In the figures, designated by reference number 1, a floor nozzle according to the invention is shown purely schematically. The representation according to Figure 1 shows a vacuum cleaner 2 according to the invention with a floor nozzle 1 connected to the vacuum cleaner 2. The vacuum cleaner 1 shown in the exemplary embodiment is a so-called canister vacuum cleaner. The floor nozzle 1 is connected here via its connecting piece 15 to a preferably telescopic suction pipe 22. Furthermore, in this exemplary embodiment shown, the floor nozzle 1 has its own housing 3 which is independent of the vacuum cleaner housing 17, 17a. The telescopic suction tube 22 merges into a handle 23, to which a suction hose 12 is connected, which is connected to the vacuum cleaner housing 17, 17a. A blower (not shown) of the vacuum cleaner 2 integrated in the vacuum cleaner housing 17, 17a is operated with electricity via an electrical connection cable 18 in order to generate a negative pressure. By means of this negative pressure, dirt and grime are removed from the floor surface 24 ( Fig. 4 ) by an air flow via the suction mouth 6 ( Fig. 5 ) of the floor nozzle 1 and transported via the suction pipe 22 and the suction hose 12 into the housing 17, 17a of the vacuum cleaner 2. A separation system 20 is provided in this housing 17, 17a, which in the exemplary embodiment is designed as a dust bag. This separation system 20 is located in a dust chamber 21 formed by the housing parts 17 and 17a of the vacuum cleaner 2. This dust chamber 21 is accessible and shown open by a folding mechanism between the vacuum cleaner housing parts 17 and 17a, so that the separation system 20 is visible and removable. To operate the vacuum cleaner 2, the dust chamber 21 is closed and a negative pressure is generated. The air flow generated by the negative pressure is freed from dirt and grime in the separation system 20 and led out of the vacuum cleaner 2 via an exhaust air grille 19. To turn the on and off Vacuum cleaner 2 has a step switch 14. This pedal circuit 14 includes switches that are sufficiently large so that a user can operate them with their foot. The step switch 14 usually also has a switch for actuating the automatic winding system for the connecting cable 18 (not shown) integrated in the vacuum cleaner housing 17, 17a. There is also a manual switch 13 on the handle 23, with which the functions of the vacuum cleaner 2 can be activated. In addition, the vacuum cleaner 2 can be switched on and off via the manual switch 13 and power levels of the blower (not shown) can be selected. A user of the vacuum cleaner 1 can grab it by the handle 23 and thus push the floor nozzle 1 back and forth in a pushing and pulling movement in the processing direction 5 marked as a double arrow in order to clean the floor surface 24 ( Fig. 4 ) to clean. The floor nozzle 1 slides over the floor surface 24 to be cleaned ( Fig. 4 ). The sole 4 ( Fig. 3 , 4 , u. 5) of the floor nozzle 1 over the floor surface 24 ( Fig. 4 ), while the sole 4 ( Fig. 3 , 4 , u. 5) on hard floors, if necessary with spacer bristles, over these floor surfaces 24 ( Fig. 4 ) floats away. In the exemplary embodiment shown, the floor nozzle 1 also has support elements 16 in the form of wheels, which have a defined distance from the sole 4 ( Fig. 3 , 4 , u. 5) to the floor surfaces to be cleaned 24 ( Fig. 4 ) and ensure easy handling when pushing the floor nozzle 1 back and forth.

In Figur 2 sind Teile der erfindungsgemäßen Bodendüse 1 für einen Staubsauger 2 in einer perspektivischen Seitenansicht gezeigt. Bei der hier dargestellten Ausführungsform ist die Sohle 4 der Bodendüse 1 einstückig ausgeführt. Mittig oberhalb der Sohle 4 ist ein Anschlussstutzen 15 angeordnet. Die hier gezeigte Sohle 4 wird über die Aufhängelemente 26 in dem hier nicht gezeigten Gehäuse 3 der Bodendüse 1 fixiert. Die Sohle 4 besteht aus einem weichelastischen Kunststoff und ist daher entlang der gesamten räumlichen Erstreckung beweglich. Die Verformbarkeit der Sohle 4 ermöglicht dabei eine Beweglichkeit der Sohle 4 in verschiedenen Bewegungsrichtung, um eine optimale Anpassung der Sohle 4 an Bodenkonturen im Reinigungsbetrieb zu ermöglichen. Die durch die Sohle 4 gebildete Saugmundkante 7 ist mit dem Saugmund 6 (Fig. 5) verformbar ausgebildet. Die Saugmundkante ist dabei einstückig aus dem gleichen Material wie die Sohle ausgebildet. In einer alternativen Ausführungsform ist es aber auch denkbar die Saugmundkante 7 aus einem formfesten Kunststoffmaterial auszubilden, um eine verbesserte Staubmobilisation durch die Saugmundkante 7 zu erreichen.In Figure 2 Parts of the floor nozzle 1 according to the invention for a vacuum cleaner 2 are shown in a perspective side view. In the embodiment shown here, the sole 4 of the floor nozzle 1 is made in one piece. A connecting piece 15 is arranged centrally above the sole 4. The sole 4 shown here is fixed via the suspension elements 26 in the housing 3 of the floor nozzle 1, not shown here. The sole 4 consists of a soft, elastic plastic and is therefore movable along the entire spatial extent. The deformability of the sole 4 enables the sole 4 to move in different directions of movement in order to enable the sole 4 to be optimally adapted to floor contours during cleaning operations. The suction mouth edge 7 formed by the sole 4 is connected to the suction mouth 6 ( Fig. 5 ) designed to be deformable. The suction mouth edge is made in one piece from the same material as the sole. In an alternative embodiment, it is also conceivable to form the suction mouth edge 7 from a dimensionally stable plastic material in order to achieve improved dust mobilization through the suction mouth edge 7.

Die Figur 3 zeigt schematisch die Sohle 4 einer erfindungsgemäßen Bodendüse 1. Wie aus dieser Darstellung deutlich zu erkennen ist, verläuft der längliche Saugmund 6 quer zur Bearbeitungsrichtung 5. In Bearbeitungsrichtung 5 vor und hinter dem Saugmund 6 ist dieser durch eine an der Sohle 4 gebildete Saugmundkante begrenzt. Der hier dargestellte Saugmund 6 erstreckt sich bis zu den seitlichen Rändern 10, 10a der Sohle 4. Der Saugmund 6 ist in seiner Grundfläche von einem vorderen Bereich, einem hinteren Bereich und seitlichen Bereichen der Sohle 4 begrenzt. Die dem Bodenbelag zugewandte Fläche der Sohle ist quer zur Bearbeitungsrichtung im Wesentlichen gerade ausgebildet. Die in Bearbeitungsrichtung vordere Saugmundkante weist einen annähernd geraden Verlauf auf. Die in Bearbeitungsrichtung hintere Saugmundkante weist im Bereich des Anschlussstutzens 15 einen geraden Verlauf auf, welcher annähernd parallel zur vorderen Saugmundkante ausgerichtet ist. An den Randbereichen verjüngt sich die hintere Saugmundkante in Richtung der vorderen Saugmundkante, sodass sich der Abstand zwischen der vorderen und hinteren Saugmundkante an den Randbereichen verringert.The Figure 3 shows schematically the sole 4 of a floor nozzle 1 according to the invention. As can be clearly seen from this illustration, the elongated suction mouth 6 runs transversely to the processing direction 5. In the processing direction 5 in front of and behind the suction mouth 6, this is limited by a suction mouth edge formed on the sole 4. The one shown here Suction mouth 6 extends to the side edges 10, 10a of the sole 4. The base area of the suction mouth 6 is delimited by a front area, a rear area and side areas of the sole 4. The surface of the sole facing the floor covering is essentially straight transverse to the processing direction. The front edge of the suction mouth in the processing direction has an approximately straight course. The rear suction mouth edge in the processing direction has a straight course in the area of the connecting piece 15, which is aligned approximately parallel to the front suction mouth edge. At the edge areas, the rear suction mouth edge tapers towards the front suction mouth edge, so that the distance between the front and rear suction mouth edges at the edge areas is reduced.

In Figur 4 sind Teile der erfindungsgemäßen Bodendüse 1 für einen Staubsauger 2 (Fig. 1) in einer perspektivischen Seitenansicht gezeigt. Bei der hier dargestellten Ausführungsform weist die Sohle 4 der Bodendüse 1 mehrere einzelne Glieder 8, 8a, 8b, 8c auf, die gegeneinander schwenkbeweglich ausgebildet sind. Die einzelnen Glieder 8, 8a, 8b, 8c der Sohle 4 sind symmetrisch zur Mitte des Saugmunds 6 (Fig. 5) bzw. zum Anschlussstutzen 15 angeordnet. Als mittiges Element trägt das Glied 8 den Anschlussstutzen 15 wobei quer zur Bearbeitungsrichtung 5 jeweils drei Glieder 8a, 8b, 8c schwenkbeweglich aneinander angeordnet sind. Die jeweils symmetrischen Glieder 8a, 8b, 8c weisen die gleichen Bezugszeichen auf, um die Erläuterung zu vereinfachen. Das jeweils äußerste Glied 8c der Sohle 4 bildet jeweils einen seitlichen Rand 10, 10a aus, bis an den der quer zur Bearbeitungsrichtung 5 verlaufende Saugmund 6 (Fig. 5) reicht. Die aus festem Kunststoff gebildeten Glieder 8a, 8b, 8c sind jeweils über ein aus Elastomer gebildetes Scharnier 11, 11a, 11b miteinander verbunden. Dieses Elastomer 11, 11a, 11b bewirkt eine Rückstellkraft, die die Glieder 8a, 8b, 8c zurück in die hier dargestellte Ruhestellung bewegt, bei welcher die Sohle 4 vorzugsweise eben und parallel zur Bodenfläche ausgerichtet ist. Die durch die Sohle 4 gebildete Saugmundkante 7 ist mit dem Saugmund 6 (Fig. 5) verformbar ausgebildet. Die hier gezeigte Sohle 4 wird über die Aufhängelemente 26 in dem hier nicht gezeigten Gehäuse 3 der Bodendüse 1 fixiert.In Figure 4 are parts of the floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) shown in a perspective side view. In the embodiment shown here, the sole 4 of the floor nozzle 1 has several individual members 8, 8a, 8b, 8c, which are designed to be pivotable relative to one another. The individual members 8, 8a, 8b, 8c of the sole 4 are symmetrical to the center of the suction mouth 6 ( Fig. 5 ) or arranged to the connecting piece 15. As a central element, the link 8 carries the connecting piece 15, with three links 8a, 8b, 8c being arranged to one another so that they can pivot transversely to the processing direction 5. The respective symmetrical members 8a, 8b, 8c have the same reference numbers in order to simplify the explanation. The outermost member 8c of the sole 4 each forms a lateral edge 10, 10a, up to which the suction mouth 6 (which runs transversely to the processing direction 5) ( Fig. 5 ) suffices. The members 8a, 8b, 8c made of solid plastic are each connected to one another via a hinge 11, 11a, 11b made of elastomer. This elastomer 11, 11a, 11b causes a restoring force that moves the members 8a, 8b, 8c back into the rest position shown here, in which the sole 4 is preferably aligned flat and parallel to the floor surface. The suction mouth edge 7 formed by the sole 4 is connected to the suction mouth 6 ( Fig. 5 ) designed to be deformable. The sole 4 shown here is fixed via the suspension elements 26 in the housing 3 of the floor nozzle 1, not shown here.

Die Figur 5 zeigt schematisch eine erfindungsgemäße Bodendüse 1 für einen Staubsauger zur Reinigung und Pflege von Bodenflächen 24 (Fig. 4) aus Sicht der Bearbeitungsrichtung 5 (Fig. 1, 2, u. 5). Die Bodendüse 1 weist ein Gehäuse 3 (Fig. 1, 3 u. 4) auf, das eine in Bearbeitungsstellung der Bodenfläche 24 (Fig. 4) zugewandte Sohle 4 aufweist. Wie gut zu erkennen ist, ist der Anschlussstutzen 15 mittig in dem Gehäuse 3 angeordnet. An dem mit dem Anschlussstutzen 15 verbundenen Glied 8 der Sohle 4 sind rechts und links symmetrisch jeweils drei weitere Glieder 8a, 8b,8c der Sohle 4 angeordnet. Zwischen den Gliedern 8, 8a, 8b, 8c ist jeweils ein aus Elastomer 11, 11a, 11b gebildetes Scharnier angeordnet. Durch die V-förmige Ausgestaltung der aus Elastomer 11, 11a, 11b gebildeten Scharniere sind die zwischen den einzelnen Gliedern 8, 8a, 8b, 8c verlaufenden Gelenkachsen 9, 9a, 9b nahe der Sohle 4 angeordnet. Die V-förmige Ausgestaltung der Gummischarniere 11, 11a, 11b bewirkt zudem eine Rückstellkraft, die die Glieder 8a, 8b, 8c zurück in die hier dargestellte Ruhestellung bewegt. Eine entsprechende Ausrichtung der schwenkbeweglichen Glieder 8a, 8b, 8c stellt sich bei der Vorwärtsbewegung der Bodendüse 1 in Bearbeitungsrichtung 5 (Fig. 1, 2, u. 5) ein. Dadurch dass über den Anschlussstutzen von dem Benutzer Druck auf die Bodendüse ausgeübt wird, drückt sich die Sohle 4 in den zu reinigenden Untergrund.The Figure 5 shows schematically a floor nozzle 1 according to the invention for a vacuum cleaner for cleaning and maintaining floor surfaces 24 ( Fig. 4 ) from the perspective of the machining direction 5 ( Fig. 1 , 2 , and 5). The floor nozzle 1 has a housing 3 ( Fig. 1 , 3 u. 4), which is in the processing position of the bottom surface 24 ( Fig. 4 ) facing sole 4. As can be clearly seen, the connecting piece 15 is arranged centrally in the housing 3. On the link 8 of the sole 4 connected to the connecting piece 15, three further links 8a, 8b, 8c of the sole 4 are arranged symmetrically on the right and left. A hinge made of elastomer 11, 11a, 11b is arranged between the links 8, 8a, 8b, 8c. Due to the V-shaped design of the elastomer 11, 11a, 11b The hinge axes 9, 9a, 9b running between the individual links 8, 8a, 8b, 8c are arranged near the sole 4. The V-shaped design of the rubber hinges 11, 11a, 11b also causes a restoring force that moves the links 8a, 8b, 8c back into the rest position shown here. A corresponding alignment of the pivotable members 8a, 8b, 8c occurs when the floor nozzle 1 moves forward in the processing direction 5 ( Fig. 1 , 2 , and 5). Because the user exerts pressure on the floor nozzle via the connecting piece, the sole 4 presses into the surface to be cleaned.

Die Figur 6 zeigt schematisch eine erfindungsgemäße Bodendüse 1 aus Sicht der Bearbeitungsrichtung 5 (Fig. 1, 2, u. 5). Gegenüber Figur 3 ist die Stellung der schwenkbeweglichen Glieder 8a, 8b und 8c auf der linken Seite verändert. Eine solche Ausrichtung der schwenkbeweglichen Glieder 8a, 8b, 8c stellt sich bei der Rückwärtsbewegung der Bodendüse 1 in Bearbeitungsrichtung 5 (Fig. 1, 2, u. 5) ein. Dadurch dass über den Anschlussstutzen 15 von dem Benutzer Zug auf die Bodendüse 1 ausgeübt wird, hebt die Bodendüse 1 den Teppichläufer 25 von der Bodenfläche 24 ab. Die höhere Anpassungsfähigkeit der Bodendüse 1 durch die verformbare Sohle 4 ermöglicht jedoch auch in dieser Situation eine optimale Reinigung. Auf der linken Seite der Figur 4 sind die schwenkbeweglichen Glieder 8a, 8b 8c deutlich ausgelenkt, so dass die Sohle 4 den angehobenen Teppichläufer 25 immer noch kontaktiert. Hierdurch kann die am Saugmund 6 (Fig. 5) gebildete Saugmundkante 7 (Fig. 1 u. 5) die Fasern des Teppichläufers 25 immer noch aufkämmen und tiefenwirksam reinigen. Auf der rechten Seite der Bodendüse 1 ist eine Situation gezeigt, in der die Bodendüse 1 beispielhaft weniger anpassungsfähig ausgestaltet ist. Hier liegt die Sohle 4 nicht mehr auf dem Teppichläufer 25 auf und der Unterdruck an der Bodendüse 1 fällt in einen Bereich ab, in dem eine effektive Staubaufnahme nicht mehr möglich ist. Außerdem kontaktiert die Sohle 4 nicht mehr den Teppichläufer 25, so dass eine Reinigung in diesem Bereich ausbleibt. Aus diesem Grund ist es sinnvoll, die zwischen den Gliedern 8, 8a, 8b und 8c angeordneten Elastomere 11, 11a, 11b sehr anpassungsfähig auszugestalten, um eine ausreichend große Auslenkung der schwenkbeweglichen Glieder 8a, 8b und 8c der Bodendüse 1 sicherzustellen. Die hohe Anpassungsfähigkeit der Sohle 4 stellt sicher, dass der seitliche Rand 10 auf dem Teppichläufer 25 aufliegt und nicht von diesem abhebt, wie es auf der rechten Seite der Figur 4 dargestellt ist. Die Schwenkbewegung in der Gelenkachse 9 führt zu einer Verlagerung der weiter außerhalb liegenden Gelenkachsen 9a, 9b. Die von diesen Schwenkachsen 9a, 9b ermöglichte Schwenkbewegung addiert sich auf die Schwenkbewegung der ersten Gelenkachse 9, so dass mit einer hohen Zahl an Gliedern 8, 8a, 8b und 8c und Gelenkachsen 9, 9a und 9b eine besonders anpassbare Bodendüse 1 gegeben ist.The Figure 6 shows schematically a floor nozzle 1 according to the invention from the perspective of the processing direction 5 ( Fig. 1 , 2 , and 5). Opposite Figure 3 the position of the pivotable members 8a, 8b and 8c on the left side is changed. Such an alignment of the pivotable members 8a, 8b, 8c occurs when the floor nozzle 1 moves backwards in the processing direction 5 ( Fig. 1 , 2 , and 5). Because the user exerts tension on the floor nozzle 1 via the connecting piece 15, the floor nozzle 1 lifts the carpet runner 25 from the floor surface 24. However, the greater adaptability of the floor nozzle 1 thanks to the deformable sole 4 also enables optimal cleaning in this situation. On the left side of the Figure 4 the pivoting members 8a, 8b, 8c are clearly deflected so that the sole 4 still contacts the raised carpet runner 25. This allows the suction mouth 6 ( Fig. 5 ) formed suction mouth edge 7 ( Fig. 1 and 5) still comb up the fibers of the carpet runner 25 and clean them thoroughly. On the right side of the floor nozzle 1, a situation is shown in which the floor nozzle 1 is designed to be less adaptable, for example. Here the sole 4 no longer rests on the carpet runner 25 and the negative pressure on the floor nozzle 1 drops to an area in which effective dust absorption is no longer possible. In addition, the sole 4 no longer contacts the carpet runner 25, so that there is no cleaning in this area. For this reason, it makes sense to make the elastomers 11, 11a, 11b arranged between the members 8, 8a, 8b and 8c very adaptable in order to ensure a sufficiently large deflection of the pivoting members 8a, 8b and 8c of the floor nozzle 1. The high adaptability of the sole 4 ensures that the side edge 10 rests on the carpet runner 25 and does not lift off from it, as is the case on the right side of the Figure 4 is shown. The pivoting movement in the joint axis 9 leads to a displacement of the joint axes 9a, 9b located further outside. The pivoting movement made possible by these pivot axes 9a, 9b is added to the pivoting movement of the first joint axis 9, so that a particularly adaptable floor nozzle 1 is provided with a large number of links 8, 8a, 8b and 8c and joint axes 9, 9a and 9b.

Die Figur 7 zeigt schematisch die Sohle 4 einer erfindungsgemäßen Bodendüse 1. Wie aus dieser Darstellung deutlich zu erkennen ist, verläuft der längliche Saugmund 6 quer zur Bearbeitungsrichtung 5. In Bearbeitungsrichtung 5 vor und hinter dem Saugmund 6 ist dieser durch eine an der Sohle 4 gebildete Saugmundkante 7 begrenzt. Der hier dargestellte Saugmund 6 erstreckt sich bis zu den seitlichen Rändern 10, 10a der Sohle 4. In Figur 5 gut zu erkennen ist, dass die parallel zur Bearbeitungsrichtung 5 verlaufenden Gelenkachsen 9, 9a, 9b symmetrisch zur Mitte der Bodendüse 1 bzw. dem Anschlussstutzen 15 angeordnet sind. Die Elastomere 11, 11a 11b bilden im Bereich des Saugmundes 6 einen deutlich verbreiterten Bereich aus, um eine ausreichend hohe Verschwenkbarkeit der Glieder 8a, 8b und 8c an der Sohle 4 zu ermöglichen. Insgesamt ist es vorteilhaft, die Schwenkbarkeit der Sohle 4 bzw. der einzelnen Glieder 8, 8a, 8b, 8c nach oben, also zur belagsabewandten Seite zu begrenzen, damit, damit die ursprüngliche Form der Sohle 4, insbesondere der zum Bodenbelag zugewandte Bereich, auf formstabilen Bodenbelägen erhalten bleibt. Hierbei ist die dem Bodenbelag zugewandte Fläche quer zur Bearbeitungsrichtung im Wesentlichen gerade ausgebildet. Die Begrenzung geschieht dabei vorzugsweise mittels Anschlagmittel, die durch die Formgebung der Verbindungsseiten der einzelnen Glieder 8 bereitgestellt werden. Als Anschlagsmittel können auch auf der Oberseite der Sohle angebrachte oder angeformte Vorsprünge dienen. Ferner kann durch die Auswahl der Härte der als Scharnier ausgebildeten Elastomeren die Anschlagsfunktion bereitgestellt werden.The Figure 7 shows schematically the sole 4 of a floor nozzle 1 according to the invention. As can be clearly seen from this illustration, the elongated suction mouth 6 runs transversely to the processing direction 5. In the processing direction 5 in front of and behind the suction mouth 6, this is limited by a suction mouth edge 7 formed on the sole 4 . The suction mouth 6 shown here extends to the side edges 10, 10a of the sole 4. In Figure 5 It can be clearly seen that the joint axes 9, 9a, 9b, which run parallel to the processing direction 5, are arranged symmetrically to the center of the floor nozzle 1 or the connecting piece 15. The elastomers 11, 11a, 11b form a significantly widened area in the area of the suction mouth 6 in order to enable the members 8a, 8b and 8c on the sole 4 to pivot sufficiently. Overall, it is advantageous to limit the pivotability of the sole 4 or the individual members 8, 8a, 8b, 8c upwards, i.e. to the side facing the covering, so that the original shape of the sole 4, in particular the area facing the floor covering, is preserved dimensionally stable floor coverings. Here, the surface facing the floor covering is essentially straight transversely to the processing direction. The limitation is preferably done by means of sling means, which are provided by the shape of the connecting sides of the individual links 8. Projections attached or formed on the top of the sole can also serve as slinging means. Furthermore, the stop function can be provided by selecting the hardness of the elastomers designed as a hinge.

Natürlich ist die Erfindung nicht auf die dargestellten Ausführungsbeispiele beschränkt. Weitere Ausgestaltungen sind möglich, ohne den Grundgedanken zu verlassen. So kann die Bodendüse 1 auch als Teil eines selbstfahrenden Staubsaugers ausgebildet sein.Of course, the invention is not limited to the exemplary embodiments shown. Further configurations are possible without departing from the basic idea. The floor nozzle 1 can also be designed as part of a self-propelled vacuum cleaner.

BezugszeichenlisteReference symbol list

11
BodendüseFloor nozzle
22
StaubsaugerVacuum cleaner
33
GehäuseHousing
44
Sohle (Gleitsohle)Sole (sliding sole)
55
BearbeitungsrichtungProcessing direction
66
Saugmundsuction mouth
77
Hinterer Bereich SohleRear area of sole
88th
Vorderer Bereich SohleFront area sole
99
Seitlicher Bereich SohleLateral area sole
1010
SaugmundkanteSuction mouth edge

Claims (15)

  1. Floor nozzle (1) for a vacuum cleaner (2), comprising a housing (3) which has a base (4) facing the floor surface in the treatment position, a suction mouth (6) being arranged in the base (4), the suction mouth (6) being surrounded by a rear region (7) of the base (4), a front region (8) of the base (4) and lateral regions (9) of the base, the rear region (7) and the lateral regions (9) of the base (4) being deformable,
    characterised in that
    the base (4) is constructed in a multi-membered manner, the individual members (8, 8a, 8b, 8c) of the base (4) being designed to be pivotable relative to one another.
  2. Floor nozzle (1) according to claim 1,
    characterised in that
    the front region (8) of the base (4) is deformable.
  3. Floor nozzle (1) according to either claim 1 or 2,
    characterised in that
    regions (7, 8, 9) of the base (4) are designed so as to be deformable such that, during a suction operation of the floor nozzle (1), they adapt to a floor surface and achieve sealing of the floor nozzle (1) with respect to the floor surface.
  4. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    the base (4) is made of a resilient plastics material.
  5. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    the suction mouth (6) has a suction mouth edge (10), the suction mouth edge (10) being designed to be movable together with the suction mouth (6).
  6. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    the members (8, 8a, 8b, 8c) are each designed to be pivotable relative to one another about an articulation axis (9, 9a, 9b) extending in parallel with the treatment direction (5).
  7. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    at least one member (8, 8a, 8b, 8c) is designed to be pivotable from the rest position towards the floor surface.
  8. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    the base (4) is constructed in a two-membered manner with an articulation axis arranged centrally between the two members.
  9. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    the base (4) is formed by members (8, 8a, 8b, 8c) arranged symmetrically with respect to the centre of the suction mouth (6).
  10. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    the members (8, 8a, 8b, 8c) form at least one lateral rim (10, 10a) on the base (4).
  11. Floor nozzle (1) according to any of the preceding claims, characterised in that a hinge is formed between the members (8, 8a, 8b, 8c).
  12. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    a spring element, which causes a restoring force (F) which moves the members (8, 8a, 8b, 8c) back into a rest position, is arranged between the members (8, 8a, 8b, 8c).
  13. Floor nozzle (1) according to any of the preceding claims,
    characterised in that
    an elastomer (11, 11a, 11b) is arranged as a hinge between the members (8, 8a, 8b, 8c).
  14. Floor nozzle (1) according to claim 13,
    characterised in that
    the elastomer (11, 11a, 11b) causes a restoring force (F) which moves the members (8, 8a, 8b, 8c) back into a rest position.
  15. Vacuum cleaner (2) for cleaning and maintaining floor surfaces, comprising a fan for generating a vacuum for generating a vacuum for receiving dirt by means of an air flow and a separation system (28) for cleaning the received air from the dirt, characterised by a floor nozzle (1) according to any of the preceding claims.
EP17202972.0A 2017-01-10 2017-11-22 Vacuum cleaner and floor nozzle for vacuum cleaner Active EP3345523B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017100346 2017-01-10
DE102017115523.6A DE102017115523A1 (en) 2017-01-10 2017-07-11 Floor nozzle for vacuum cleaners and vacuum cleaners

Publications (3)

Publication Number Publication Date
EP3345523A1 EP3345523A1 (en) 2018-07-11
EP3345523B1 true EP3345523B1 (en) 2023-09-13
EP3345523C0 EP3345523C0 (en) 2023-09-13

Family

ID=60421706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17202972.0A Active EP3345523B1 (en) 2017-01-10 2017-11-22 Vacuum cleaner and floor nozzle for vacuum cleaner

Country Status (2)

Country Link
EP (1) EP3345523B1 (en)
PL (1) PL3345523T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190174983A1 (en) * 2017-12-11 2019-06-13 New Ermes Europe S.R.L. Accessory for a vacuum cleaner suction head for collecting large debris

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19608188C2 (en) 1996-03-04 2001-05-03 Wessel Werk Gmbh Vacuum cleaner nozzle with springy sliding sole
DE102008029687A1 (en) * 2007-07-09 2009-01-15 Vorwerk & Co. Interholding Gmbh Combination of a vacuum cleaner nozzle with a wipe, as well as wiping cloth and method for wet cleaning of floors
DE102014105809A1 (en) * 2014-04-24 2015-10-29 Wessel-Werk Gmbh Suction nozzle for vacuuming smooth floors, especially tiled floor surfaces
CN105310602B (en) * 2014-07-11 2019-04-02 康塔有限公司 Vacuum cleaner head
GB2542420B (en) 2015-09-21 2018-01-10 Dyson Technology Ltd Cleaner head

Also Published As

Publication number Publication date
PL3345523T3 (en) 2024-01-15
EP3345523C0 (en) 2023-09-13
EP3345523A1 (en) 2018-07-11

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