CN107405032B - Separator units and vacuum cleaners for vacuum cleaners - Google Patents

Abstract

The invention relates to a separator device for a vacuum cleaner (10), comprising a preseparator (122) having a receiving cage (126 ') which has a receiving space (130), wherein a dirt-laden suction flow is guided through the receiving space (130) during operation of the separator device, wherein a cover (170) is assigned to the receiving cage (126 '), on which cover at least one pin-shaped active element (186) is arranged, which protrudes into the receiving space (130) when the cover (170) is closed, and which can act on dirt in the receiving space (130) when the cover (170) is moved relative to the receiving cage (126 ').

Description

Separator units and vacuum cleaners for vacuum cleaners

technical field

The invention relates to a separator device for a vacuum cleaner, comprising a pre-separator with a receiving cage having a receiving space, wherein, during operation of the separator device, a dirt-laden suction flow is passed through the receiving cage space.

The invention furthermore relates to a vacuum cleaner.

Background technique

Vacuum cleaners are known, for example, from WO 2013/080508 A1, EP 0 708 613 B1, US 4,610,048 or EP 1 228732 B1.

An extension pipe system for household appliances is known from EP 1 365 676 B1.

A telescopic dust collecting tube for a vacuum cleaner is known from EP 1 192 891 A1.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a separator device of the type mentioned at the outset, which can be emptied in a simple manner.

In the case of a separator device of the type mentioned at the outset, this task is solved according to the invention by assigning a cover to the receiving cage, on which is arranged at least one pin-shaped active element, which, when the cover is closed, is The shaped actuating element protrudes into the receiving space and the pin-shaped acting element can act on the dirt in the receiving space when the cover is moved relative to the receiving cage.

During operation of the vacuum cleaner, dirt collects in the holding space of the holding cage. When the cover is opened, at least one pin-shaped action element moves in the receiving space, and the pin-shaped action element can act on the collected dirt and agitate the dirt to a certain extent.

As a result, caked dirt, for example, is loosened. This simplifies the emptying of the receptacle cage, since when the lid is opened for the emptying process, the dirt acts on it and loosens it.

In particular, it is also possible that the at least one pin-shaped active element is correspondingly configured with a correspondingly large surface, so that dirt or parts of the dirt can catch on the pin-shaped active element and thus be removed to a certain extent from the receiving element. Cage pulled out.

In particular, at least one pin-shaped active element is mounted on the cover as a flag. As a result, the cover and thus also the pre-separator can be constructed in a simple manner.

More particularly advantageously, in the event of a release movement of the cover, the at least one pin-shaped actuating element moves in the receiving space when the cover is fastened to the receiving cage. In this way, the anyway necessary release movement of the cover is used to act on the collected dirt in the receiving space.

In an embodiment, the at least one active element is of wedge-shaped and/or multi-branched design. As a result, the dirt can be effectively acted upon.

Advantageously, a port for the suction flow line is arranged on the cover. As a result, a high functional integration can be achieved. Instead the necessary interfaces are integrated into the cover.

It is also advantageous if the cover has an underside which, when the cover is closed, points towards the receiving space, and if the at least one pin-shaped active element is oriented on the underside transversely to the underside. In this way, a pin-shaped active element can be realized in a simple manner, which is fastened to the cover and projects into the receiving space when the cover is closed.

Advantageously, the receiving cage is formed as a grid cage, in particular a grid structure with a bottom wall and side walls arranged on the bottom wall. As a result, the (dirt-laden) suction flow can be guided through the pre-separator in a simple manner. Mesh structures, such as fabrics, are arranged in particular on the openings (bottom and side walls) of the mesh cage. The mesh width of the mesh structure then determines which particle sizes are collected in the holding cage and which particle sizes are able to penetrate.

In an embodiment, the cover can be completely released from the containment cage. As a result, a simple emptying of the receiving cage can be achieved.

In an embodiment, the lid is placed on the containment cage as a flip lid. The lid is opened in such a way that it is folded over relative to the receiving cage. In this case, the cover can be permanently attached to the receiving cage or it can be releasable. By turning over, the at least one pin-shaped action element is moved in the receiving space, and a corresponding pivoting movement of the cover results in an action on the collected dirt.

It is advantageous here that the cover has a center axis or center plane and that the at least one pin-shaped active element is arranged between the center axis and the hinged hinge, and in particular is situated closer to the hinged than the center axis or the center plane. on the lid. As a result, the dirt in the receiving space can be acted upon in a relatively large spatial area.

In an alternative or combined embodiment, the cover is configured as a rotating cover. In principle, it is possible for the cover to be designed as a purely rotating cover, or as a rotating and flipping cover. For example, in the case of a swiveling/tilting lid, a swiveling movement is first required to open the lid, wherein the lid can then be opened by tilting and, for example, by a swiveling movement, the lid is coupled to the swiveling hinge.

In an embodiment that is simple in design, the cover can be fastened to the receiving cage by means of a bayonet arrangement. As a result, the fixed position can be reached in a simple manner, and the lid can be opened in a simple manner from the fixed position.

More particularly advantageously, the at least one pin-shaped active element moves on the path of the rail when the cover is rotated. As a result, an effective action on the collected dirt in the receiving space can be achieved. Effective mixing is achieved in particular when a plurality of pin-shaped action elements are provided.

In an exemplary embodiment, at least two opposing pin-shaped active elements are provided. They are spaced apart from each other. As a result, a large active area can be achieved when the cover is rotated.

It is advantageous here if the at least one pin-shaped actuating element is rigidly designed in order to achieve an effective actuation and, in particular, loosening of the dirt collected in the receiving space.

In an exemplary embodiment, the separator device is designed as a filter-separator device, which not only has a separator function for coarse dirt, but also a filter function for fine dirt. The separator device is designed in particular in multiple stages and has, for example, a filter device for (fine) dust, which is located downstream of the pre-separator (as filter and collector for coarse dust). The separator device can thus be constructed in a space-saving manner.

For example, filter devices for (fine) dust are constructed as cartridge filters. This makes it possible to achieve effective cleaning with compact spatial dimensions.

In an embodiment, a filter cassette is provided which comprises a filter-separator arrangement and can be used as a unit. For example, the filter box can then be removed from the vacuum cleaner as a unit in order to perform an emptying process. In particular, the receiving cage is arranged releasably (or firmly) on the filter box. The holding cage can be removed from the filter box. After the lid is released, the holding cage can be emptied.

Advantageously, the filter box has a connection for fluidly operative connection with the suction unit. As a result, a compact construction can be achieved and the connection to the suction unit can be realized in a simple manner when the filter cassette is inserted. The connection for the effective coupling of the fluid into the suction flow with the dirt is formed in particular on the cover.

The vacuum cleaner according to the invention has the separator device according to the invention.

In particular, the vacuum cleaner has a housing in which the separator device is arranged. This results in a compact structure of the housing and thus of the vacuum cleaner.

In particular, a removable filter cassette with a separator device is arranged in the housing. As a result, dust evacuation can be carried out in a simple manner. Furthermore, filter replacement can be performed in a simple manner.

In particular, the housing includes an openable door, wherein the filter cassette can be removed from the housing via the door opening. This results in simple emptying and reinsertion possibilities.

In an embodiment, the vacuum cleaner comprises a housing extending along a first extension axis between a first housing side and a second housing side, a suction unit for generating a suction flow, a separator device and a pipe arrangement , the suction unit is arranged in the housing, the separator device is arranged in the housing, the pipe arrangement is arranged on or in the housing and extends along a second axis of extension at least approximately parallel to the first axis of extension, wherein in A suction nozzle interface for the suction nozzle is arranged on the tube device, and the suction nozzle interface is located closer to the first housing side than to the second housing side.

The pipe arrangement is designed to be adjustable in length along the second extension axis, and the distance between the suction nozzle interface and the first housing side is clearly adjustable.

Due to the adjustability of the distance between the suction nozzle interface and the first housing side, an upright function for the vacuum cleaner can be achieved, in which in particular the attachment of the suction nozzle side with the suction nozzle and in particular the floor suction nozzle can be achieved .

For length adjustability, the pipe arrangement can comprise, for example, a plurality of pluggable pipe elements or, for example, a telescopic arrangement comprising pipe elements arranged so as to be movable relative to one another.

Thereby, the user can park the vacuum cleaner upright at any time. The vacuum cleaner occupies a small space requirement.

Due to the positioning of the suction nozzle interface relative to the first housing side, the suction function can be implemented in a simple manner from a standing position, wherein the length on the tube arrangement can be adjusted according to the application purpose and user preferences.

Thereby, the vacuum cleaner can be used, for example, as a floor vacuum cleaner, in which it is placed on the surface to be cleaned via a floor suction nozzle, and it can be used as a hand-held vacuum cleaner, which can be hand-held.

A vacuum cleaner can be effectively used for suction under furniture or the like. Due to the extendability of the distance between the suction nozzle connection and the housing, it is possible for the housing to stay outside the space below the furniture and only need to sink the suction nozzle with the corresponding tube region of the tube arrangement into this space middle.

A wide range of possibilities of use and operation is obtained, wherein a compact design of the vacuum cleaner can be achieved.

The second axis of extension is at least substantially parallel to the first axis of extension. It is parallel to the first axis of extension or at an acute angle of at most 20°.

In particular, the distance between the suction nozzle and the first housing side can be clearly adjusted when the suction nozzle is fastened to the nozzle interface. This results in variable usage possibilities. The standing position can be fixed.

More particularly advantageously, a floor suction nozzle is provided on which the first fixing device is arranged, wherein a second fixing device for cooperating with the first fixing device is arranged on the first housing side, and wherein the When the first fixing device acts on the second fixing device, the housing is fixed on the floor nozzle and the vacuum cleaner is in the standing position. The standing position can thus be locked. The vacuum cleaner can be brought into a standing position in a space-saving manner at any time.

From this standing position, the suction position can be achieved in a simple manner by extending the tube arrangement.

In the standing position, the second extension axis is in particular oriented at least approximately perpendicularly (perpendicular to the vertical or at an acute angle of at most 20° to the vertical) to the base on which the floor suction nozzle stands underside. In the standing position, a very good tilt stability can thus be achieved.

In an embodiment, the first fixing means and the second fixing means comprise at least one rib-like protrusion and at least one insertion recess for the at least one rib-like protrusion. At least one rib-like projection is arranged, for example, on the first housing side, and at least one engagement recess is arranged on the floor suction nozzle. Corresponding elements can engage with each other in order to achieve, for example, a form-fit locking of the standing position.

Alternatively or additionally it is possible that the first fixing device and the second fixing device comprise at least one magnet element and at least one mating element for the at least one magnet element, wherein between the at least one magnet element and the at least one mating element, The magnetic holding force works in the standing position. The standing position can thus be locked. Especially when at least one magnet element and at least one cooperating element are provided as additional elements, it is possible to prevent the floor suction nozzle from tipping out relative to the housing when lifting the vacuum cleaner on which the floor suction nozzle is fastened.

More particularly advantageously, the center of gravity of the vacuum cleaner is located in the housing, and in the standing position of the vacuum cleaner provided with the floor suction nozzle as the suction nozzle, when the vacuum cleaner is erected on a level ground with the floor suction nozzle, the projection of the center of gravity is along the vertical direction. The straight direction is located on the ground nozzle with reference to the direction of the center of gravity. Thereby, a standing position with high tilt resistance can be realized.

A compact structure is obtained when the tube arrangement is positioned on the outside of the housing. Furthermore, long flow paths can thus be achieved without significant power limitations, whereby an effective reduction of noise emissions can be achieved.

In an embodiment, the pipe arrangement has at least one rigid pipe element, and in particular is configured as a telescopic arrangement with at least two rigid pipe elements. As a result, the length adjustability of the tube arrangement and, in particular, the distance of the suction nozzle interface relative to the first housing side of the housing can be achieved in a simple manner.

Advantageously, the pipe arrangement protrudes beyond the second housing side. Thereby, the vacuum cleaner can be realized compactly with a relatively small housing. Relatively long flow paths can be achieved. As a result, effective noise reduction can again be achieved.

Advantageously, the second housing side has a housing connection for the intake flow, and the tube arrangement has an connection which is fastened in its position in particular with respect to the housing and which is in particular connected to the second housing. The housing sides are spaced apart, and wherein the connecting pipe is arranged between the interface and the housing interface. Flow diversion can be achieved via connecting pipes. A compact structure of the vacuum cleaner is obtained with a particularly compact housing size. The connecting tube can also be used as a bow handle.

In an embodiment, an openable cover is arranged on the connecting pipe. In this way, additional air can be brought in, so that, for example, a firmly sucked suction nozzle can be released.

More particularly advantageously, the connecting tube is configured as an arcuate handle for gripping the vacuum cleaner. Thereby, the connecting tube also acts as a holding element. There is thus no need to provide an additional bow handle, and the mass of the vacuum cleaner can be kept small. The arrangement of the connecting tube above the housing also results in an optimum holding function, eg for suction of the floor or when used as a hand-held aspirator.

It is also advantageous if the separator device is located closer to the second housing side than the first housing side and is arranged in particular on the second housing side. This results in a compact structure of the housing and thus of the vacuum cleaner.

For the same reason it is advantageous if the suction unit is located closer to the first housing side than the second housing side, and in particular the separator device and the suction unit lie on top of each other along the first extension axis. position. A compact structure is thus obtained.

More particularly advantageously, the flow path for the suction flow of the suction unit or the exhaust air emerging from the cleaned suction flow of the suction unit comprises a first region and a second region, the first region being arranged in the pipe arrangement , and has a main flow direction along the second extension axis, the second region is arranged in the housing and has a main flow direction along the first extension axis opposite to the main flow direction in the first region. This results in very long flow paths without a significant reduction in efficiency or suction power, which leads to effective noise reduction.

It is advantageous for the same reason that the flow path comprises a third region which is arranged in the housing and has a main flow direction along the first extension axis which is opposite to the main flow direction in the second region.

It is advantageous here that the deflection region for the flow between the first region and the second region is formed by a connecting pipe piece between the pipe arrangement and the housing and in particular the second housing side. This results in a compact structure. The connecting tube can, for example, also serve as a bow handle.

Furthermore, it is advantageous if a deflection region for the flow between the second region and the third region in the housing is formed, in particular between the suction unit and the first housing side. This results in a compact structure and optimum use of space. In an embodiment, a porous material, such as a foam material, is arranged in the deflection region for noise reduction.

It is also advantageous if the third region in the housing is formed between the housing wall and the separator device and the suction unit, wherein the separator device and the suction unit are arranged one above the other, in particular with reference to the first extension axis . As a result, the cleaned exhaust air of the suction unit can be discharged into the surrounding environment via a relatively large area.

Advantageously, at least one escape opening is arranged in the housing wall, which is fluidly connected to the third region. As a result, the cleaned exhaust gas can be discharged efficiently. The output can be performed with reduced noise.

Advantageously, at least one escape opening for the exhaust air of the suction unit is arranged on the housing on the third housing side on which the pipe arrangement is fastened, wherein the third housing side is arranged in particular on the between the first casing side and the second casing side. This results in optimum flow guidance given the compact design of the housing.

In particular, a plurality of escape openings are provided, wherein the escape openings are arranged on the housing in the direction along the first extension axis. As a result, the exhaust air of the suction unit can be discharged via a relatively large surface. Noise-minimized exhaust gas discharge can be achieved.

For noise reduction, it is also advantageous if an open porous structure, such as a foam element, through which the exhaust gas must flow, is arranged on the at least one escape opening.

In an embodiment, an openable door is arranged on the housing, via which an area in the interior space of the housing is accessible, on which the separator device is arranged. The door may be separate from the separator device, or arranged thereon. In the last case, the door is removed (and opened here) as the separator device is removed from the housing. Collected dirt can be removed in a simple manner.

In an embodiment, the separator device is designed as a filter-separator device, which in particular comprises a pre-separator (for coarse dust) and a filter device for dust (fine dust), wherein the filter device for dust In particular, it is designed as a cartridge filter. This results in an efficient cleaning (filtering) of the dirt-adhered suction flow. By means of the pre-separator, depending on the configuration of the pre-separator, for example, dust particles larger than 200 μm, larger than 150 μm or larger than 100 μm are collected. The filter device for (fine) dust then collects finer dust particles. A compact structure of the vacuum cleaner and, in particular, the housing can be achieved. Dirt emptying can be performed in a simple manner. Furthermore, filter replacement can be carried out in a simple manner.

In an embodiment, the suction unit comprises a fan motor, to which a flow diverting element, in particular in the form of a hood, is assigned, wherein at least one first flow region and a second flow having an opposite main flow direction are provided on the fan motor. area. Effective noise reduction can be achieved by such "subflow regions" in the housing, ie a reduction in noise emissions can be achieved on the basis of noise reflections in the housing.

It is also advantageous to provide an exhaust air filter, which is located downstream of the fan motor in relation to the flow, or is arranged between the fan motor and the flow diverting element. For example, fine abrasive particles of the fan motor can be filtered out by means of such an exhaust air filter.

Advantageously, at the transition between the first flow region and the second flow region, a particularly annular element is arranged from a noise-resistant material having a noise reflectivity of at least 94%. This results in a reduction in noise emissions. For example, foam elements are also arranged on the transition.

It is also advantageous if, on the fan motor, a porous material, in particular a foam material, is arranged in the flow path in order to reflect the noise. This results in a reduction in noise emissions.

The vacuum cleaner according to the invention can be used not only as a floor vacuum when the floor nozzle is attached to the nozzle interface and the vacuum cleaner is placed with the floor nozzle on the surface to be cleaned, but also as a hand-held vacuum cleaner, wherein , the vacuum cleaner is then held freely, in particular via the bow handle. This results in a wide range of use possibilities.

In an embodiment, the length-adjustable pipe arrangement comprises at least a first pipe, a second pipe, a third pipe, wherein the first pipe is guided in the second pipe in a longitudinally movable manner, and the second pipe is longitudinally movable in the second pipe. Guided in the third tube and comprising a first locking device, a second locking device, a third locking device, the first locking device acts between the first and second tube parts, wherein the release of the first locking device In the open locking position, the first pipe element is fastened to the second pipe element with respect to the longitudinal displaceability, and the second locking device acts between the second pipe element and the third pipe element, wherein the release of the second locking device is possible. In the locked position, the second pipe is fastened on the third pipe with respect to the longitudinal displaceability, and the third locking means acts on the first pipe, the second pipe and the third pipe, wherein the third locking means has a loose an open locked position, in which the second tubular member is fastened to the third tubular member with respect to longitudinal movement, and an unlocked position, in which the longitudinal movement of the second tubular member relative to the third tubular member is released, wherein, With regard to the transition from the locked position to the unlocked position, the third locking device is controlled by the positioning of the first pipe part relative to the second pipe part and/or by the force with which the third locking device acts on the second pipe part.

The length-adjustable pipe fittings are constructed in cascade. The first pipe element is movable relative to the second pipe element, wherein the first locking device secures the first pipe element on the second pipe element in its locking position.

The second tube is movable within the third tube. But this mobility is only possible when the third locking means releases the mobility. Since the transition from the locked position of the third locking device to the unlocked position is controlled by the positioning of the first pipe element or by force control, ie by positioning control or force control, when the specific positioning of the first pipe element relative to the second pipe element is achieved The transition is obtained automatically to a certain extent when positioned. No separate operating element is required.

When the third locking device is then in the unlocked position, the relative positioning of the second tubular member relative to the third tubular member can be adjusted via the second locking device.

A large length adjustment range for the pipe arrangement is obtained with simple operability.

The length-adjustable tube arrangement here has a high level of operating comfort.

Advantageously, the first locking device and the third locking device are coupled to each other in such a way that, in the unlocking position of the third locking device, the first locking device is in its locking position. As a result, only a movement of one pipe element relative to the other pipe elements can always occur. When the first tubular member moves relative to the second tubular member, then the second tubular member cannot move relative to the third tubular member. When the second tubular member moves relative to the third tubular member, the first tubular member is then unable to move relative to the second tubular member. This results in simple adjustability and high operating comfort.

It is also advantageous if the first locking device and the second locking device are coupled to each other in such a way that, in the locking position of the third locking device, the first locking device and the second locking device can be jointly locked from their respective locking devices. The positions are brought into the unlocked position, or are collectively in their respective unlocked positions. As a result, a common actuating element can be used to act on the first locking device and on the second locking device. In particular, it is possible to act on the first locking device via a corresponding blocking element of the second locking device without canceling the locking of the second tubular part (by the third locking device) relative to the third tubular part. Even when the second locking device is in the unlocked position, the second tubular part is fastened on the third tubular part via the third locking device in its locked position.

It is furthermore advantageous if, in the unlocked position of the third locking device, the first locking device and the second locking device are decoupled, wherein the second locking device can be brought into the locking position and the second pipe element is relative to the third pipe element The positioning is clearly adjustable by means of the second locking means. This results in a large length range for length adjustability. In the unlocked position of the third locking device it is no longer necessary to act on the first locking device because it is in the locked position. A compact structure is obtained with simple maneuverability.

In an embodiment, the first locking device has a first sinking element, in particular a sphere or a roller, which sinks into the first recess of the first tubular part in the locking position and which, for unlocking, can be removed from the first sink in the recess. In particular in the locked position, the sink element also sinks into the corresponding recess of the second pipe piece. As a result, a form fit between the first tube part and the second tube part is achieved, and the first tube part is fastened to the second tube part in a displaceable manner with respect to its length. When the corresponding first sink element sinks out at least from the first recess, the positive fit is eliminated and a relative displaceability between the first pipe part and the second pipe part can be achieved.

In particular, the first pipe element has a plurality of first recesses spaced apart in the longitudinal direction of the first pipe element. Thereby a plurality of different length positions of the first pipe element relative to the second pipe element can be adjusted and locked in stages.

It is also advantageous if the first locking device has a first movable blocking element which, in the locking position, prevents the first sinking element from sinking out of the first recess and releases the sinking in the unlocking position. The positioning of the movable first blocking element determines whether sinking can be achieved. This results in a simple locking possibility, which in turn can be cancelled in a simple manner.

In particular, a first receptacle for a first sink element is arranged on the first blocking element, the first sink element can sink into the first receptacle in the unlocked position. As a result, a sinking out of the first recess of the first pipe part can be achieved, so that the form-locking between the first pipe part and the second pipe part can be eliminated, and length mobility can be achieved.

Advantageously, the first blocking element is movable parallel to the longitudinal direction of the tubular device. As a result, a displacement movement for the first displacement device and the second displacement device by means of a single actuating element can be achieved.

Furthermore, it is advantageous if a restoring device and in particular a spring device are provided, which, without external forces acting on the first blocking element, try to bring the first blocking device into a blocking position for the first submerged element. This results in simple operability. With the corresponding positioning of the first recess, locking can be achieved in an automatic manner by the restoring force of the restoring device.

For the same reasons as mentioned above in connection with the first locking device, it is advantageous that the second locking device has a second sink element, which sinks into the second recess of the second pipe in the locking position, And it can sink out of the second recess for unlocking.

Furthermore, for the reasons stated above in connection with the first locking means, it is advantageous that the second tubular member has a plurality of second recesses spaced apart in the longitudinal direction of the second tubular member.

Furthermore, for the reasons mentioned above, it is advantageous if the second locking device has a second movable blocking element which, in the locking position, prevents the second sinking element from sinking out of the second recess, and in the unlocking position The release sinks out.

Furthermore, for the same reasons as mentioned above, it is advantageous to arrange on the second blocking element a second receptacle for a second sink element which can sink in the unlocked position into the second receptacle.

Furthermore, for the reasons mentioned above, it is advantageous if the second blocking element is movable parallel to the longitudinal direction of the pipe arrangement.

Furthermore, for the reasons mentioned above, it is advantageous to provide the second locking device with a restoring device and, in particular, a spring device which, without external forces acting on the second blocking element, seeks to bring the second blocking device to the In the blocking position for the second sink element.

It is also advantageous if the third locking device has a third submerged element, and the second and third tubular parts have corresponding receptacles, the third submerged element is positioned in the receptacle in the locking position, and the second tubular part Fastened to the third pipe fitting. In this way, the fastening of the second pipe part on the third pipe part can be achieved in a simple manner by means of a form fit by means of the third sink element.

It is more particularly advantageous if the first pipe part has a recess associated with the third locking device, the third sinking element sinks into the receptacle in the unlocked position of the third locking device, and in this case at least from the third pipe part. sinks out of the receptacle. As a result, the third locking device can be brought from the locked position into the unlocked position in a simple manner via the positioning control of the first pipe element relative to the second pipe element, so that the mobility between the second pipe element and the third pipe element can be achieved. .

Advantageously, the second tube forms, in the locked position of the third locking means, a stopper wall for the third submerged element, which holds the third submerged element in the receptacle of the second tube and of the third tube, and In this way, a form-locking of the second pipe part and the third pipe part can be achieved in order to prevent the corresponding mobility.

The third submerged element of the third locking device or the force-loading element of the third locking device is arranged in particular between the first submerged element of the first locking device and the second submerged element of the second locking device in the longitudinal direction of the pipe device between. This results in a compact structure with a large length adjustment range.

In one embodiment, a force-loading element is provided, which is in particular spring-loaded and which, in the locking position of the third locking device, securely fastens the second pipe part to the third pipe part, wherein in the first In the unlocked position of the triple locking device, the non-positive fastening is eliminated. In this embodiment, no form-fitting fastening is provided between the third and second tubular parts, but a non-positive fastening is provided. The force-loading element provides the necessary force for the non-positive fixation. This fixation can be canceled by a corresponding positioning of the first pipe part relative to the second pipe part. The fixation can also be cancelled by direct user intervention on the force-loading element.

Simple maneuverability, in particular by means of a single actuating element, is obtained when a slide is provided, which is longitudinally movable with respect to the pipe arrangement and which locks with the first blocking element and the second locking element of the first locking device A second blocking element of the device is coupled. In the locked position of the third locking device, in particular, the first and second blocking elements can be moved synchronously by means of the slide. This results in simple operability. Even when the blocking element of the second locking device is moved to the unlocked position, if the third locking device is in the locked position, the second tubular part remains fastened to the third tubular part.

Advantageously, the slide is arranged longitudinally displaceable on the tubular device or the housing on which the tubular device is fitted. This results in a space-saving installation with optimum maneuverability.

It is advantageous here that the slider is permanently connected to the second blocking element. Thereby, when the third locking device is in the unlocked position, the relative positioning of the second pipe element relative to the third pipe element can be adjusted in a simple manner by means of the actuating slide.

Furthermore, it is advantageous that the first blocking element is not permanently connected to the slide and that the displacement movement in the direction of movement is effected by means of the slide by displacement. This makes it possible to act on the first blocking element via the slide in the locking position of the third locking device without having to provide an additional actuating element.

The coupling between the slider and the first blocking element exists in particular in the locked position of the third locking device, and in the unlocked position of the third locking device the slider is decoupled and in particular spaced from the first blocking element. This results in a structure that is structurally simple in design. Only one actuating element, namely the slider, needs to be provided in order to be able to achieve length adjustability over a large length range.

In an embodiment, the first interface for the cleaning tool and, in particular, the suction nozzle is provided on the tube device, wherein the first interface is arranged in particular on the first tube. This results in simple length adjustability.

Furthermore, it can be provided that the second connection for the fluid-active connection to the suction unit is arranged on the pipe arrangement, and here in particular on the third pipe element. Thus, the suction flow can be directed through the tube arrangement.

Advantageously, longitudinally movable slides are arranged on the housing of the vacuum cleaner or on the pipe means, via which slides can act on the first locking means and the second locking means in order to establish the respective unlocked position. This results in simple maneuverability, wherein only one actuating element (ie, the slider) needs to be provided, in order to be able to achieve a large length range for length adjustability.

In particular, the tube arrangement is fluidly connected to the suction unit, and in the operating state the suction flow is guided through the tube arrangement.

Description of drawings

The ensuing description of preferred embodiments, taken in conjunction with the accompanying drawings, serves to explain the invention in detail. in:

Figure 1 shows a perspective view of an embodiment of a vacuum cleaner according to the invention in a standing position;

FIG. 2 shows a further perspective view of the vacuum cleaner according to FIG. 1 , wherein the flow path is shown;

Fig. 3 shows a front view of the vacuum cleaner according to Fig. 1;

Fig. 4 shows a cross-sectional view along line 4-4 according to Fig. 3;

FIG. 5 shows a schematic diagram of the interaction of the floor suction nozzle and the housing to fix the standing position according to FIG. 1 ;

FIG. 6 shows an alternative or combinable variant for securing the standing position;

Figure 7 shows a view of an embodiment of a filter box for the vacuum cleaner according to Figure 1;

Figure 8 shows an exploded view of the filter box according to Figure 7;

Figure 9 shows a sectional view along the line 9-9 of the filter box according to Figure 7;

Figure 10 shows an embodiment of a pre-separator with an open lid;

Figure 11 shows a perspective view of a further embodiment of a pre-separator with a closed lid;

Figure 12 shows a side view of the pre-separator according to Figure 11;

Figure 13 shows a sectional view along the line 13-13 according to Figure 12;

Figure 14 shows an exploded view of the pre-separator according to Figure 11;

Fig. 15(a) shows a view similar to that in Fig. 3 of a vacuum cleaner without a floor nozzle, wherein the pipe arrangement is in an extended position compared to the illustration according to Fig. 3;

Fig. 15(b) shows a view similar to that in Fig. 3 with a floor suction nozzle with the pipe arrangement in an additional extended position;

Figure 16 shows a cross-sectional view along line 16-16 according to Figure 15(b);

FIG. 17 shows a sectional view similar to the view according to FIG. 16 , wherein the pipe arrangement is in a further extended position;

Fig. 18 shows a partial sectional view similar to Fig. 16 in an extended position of the pipe arrangement corresponding to the view according to Fig. 15(a);

Figure 19 shows an enlarged view of a region of a pipe device with locking means, wherein the position shown corresponds to the non-extended position;

Figure 20 shows an embodiment of a length-adjustable tubular device in an overall position with minimum length;

FIG. 21 shows a view similar to FIG. 20 , wherein an extended position is now reached, in which the first pipe part is moved relative to the third pipe part starting from the initial position according to FIG. 20 ;

Figure 22 shows a further extended position of the pipe arrangement in which the second pipe is now moved relative to the third pipe;

Figure 23 shows a cross-sectional view of a third pipe of the pipe arrangement according to Figure 20;

Figure 24 shows a cross-sectional view of a second pipe of the pipe arrangement according to Figure 20;

FIG. 25 shows a cross-sectional view of a first pipe of the pipe arrangement according to FIG. 20 .

Detailed ways

The embodiment of a vacuum cleaner (as an example of a cleaning appliance), shown in its entirety in FIGS. 1 to 4 and designated there with 10 , comprises a housing 12 and a tube arrangement 14 .

The housing 12 has a first housing side 16 . Opposite the first housing side 16 , the housing has a second housing side 18 . The housing extends along a first extension axis 20 between the first housing side 16 and the second housing side 18 .

The vacuum cleaner 10 is shown in the standing position 22 in FIGS. 1 to 4 . In this standing position 22 , a floor suction nozzle 26 as a suction nozzle is fastened to the suction nozzle interface 24 on the pipe device 14 . Floor nozzles 26 stand upright on surface 28 (FIG. 4). The first housing side 16 faces the floor suction nozzle 26 and the second housing side 18 faces away from the floor suction nozzle 26 .

In the housing 12 , a separator device 30 and a suction unit 32 are arranged one above the other along the first extension axis 20 .

With reference to the flow guidance, the suction unit 32 is placed behind the separator device 30 . The separator device 30 is located on the second housing side 18 . The suction unit 32 is located closer to the first housing side 16 than to the second housing side 18 .

The suction unit 32 includes a fan motor 34 and a fan 36 , which is rotationally driven by the fan motor 34 .

The housing has a housing wall 38 on which a third housing side 40 is formed. The third housing side 40 extends along the first extension axis 20 between the first housing side 16 and the second housing side 18 . In the exemplary embodiment, the housing wall 38 is at least approximately flat.

The housing is closed via a further housing wall 42 which is connected to the housing wall 38 and is transverse to the first housing side 16 and the second housing side 18 . The further housing wall 42 in particular has a curved shape.

The tubular arrangement 14 extends along a second extension axis 44 . The second axis of extension 44 is parallel to the first axis of extension 20 .

The tube arrangement 14 is fastened or mounted on the housing wall 38 on the outside of the housing 12 .

The pipe fittings are adjustable in length. It has the nozzle interface 24 on the first pipe piece 46 . The first pipe element 46 is guided in the second pipe element 48 so as to be displaceable in length along a displacement direction 50 parallel to the second extension axis 44 .

The second pipe part 48 is guided in the third pipe part 52 so as to be movable in the direction of movement 50 .

The pipe arrangement 14 is constructed as a telescopic pipe arrangement in order to achieve length adjustability. This is also elaborated below.

The suction nozzle interface 24 is arranged on the first pipe piece 46 . The third pipe piece 52 is firmly connected to the housing 12 and is here fastened to the housing wall 38 .

The pipe arrangement 14 has a further interface 54 . The interface 54 is firmly (immovably) positioned with respect to the housing 12 . The interface projects beyond the second housing side 18 .

A housing interface 56 is arranged on the second housing side 18 . A connecting pipe 58 is arranged between the connection 54 of the pipe arrangement 14 which is arranged on the third pipe 52 and the housing connection 56 . The connecting tubing provides a fluidly efficient connection between the tubing arrangement 14 (here the output side of the tubing arrangement 14 via the interface 54 ) and the separator arrangement 30 .

The first pipe element 46 , the second pipe element 48 and the third pipe element 52 of the pipe element arrangement 14 are designed as rigid pipe elements, in particular from a metallic material. These pipes can also be made of synthetic materials.

The connecting pipe 48 is likewise produced as a rigid pipe, and in particular is made of a metallic material or synthetic material.

The connecting tube 58 is configured as a bow handle 60 on which the user can hold the vacuum cleaner 10 and which can also be used, for example, as a hand-held vacuum cleaner.

A free space 64 is formed between the region 62 of the pipe arrangement 14 with which the pipe arrangement protrudes beyond the second housing side 18 , the second housing side 18 and the connecting pipe piece 58 . The user's hand or finger protrudes through the free space 64 when grasping the bow handle 16 .

A cover 110 and, in particular, a reversible cover 110 are arranged on the connecting tube 58 , in particular close to the connection 54 . Cover 110 covers the opening in connecting tube 58 .

By opening the cover 110 a fluidly efficient connection is established between the external space around the cleaner 10 and the interior of the connecting tube 58 .

By opening the cover 110, a supplemental air opening can be provided, which can be used, for example, to release the suction nozzle fixed to the tube arrangement 14 from the surface 28 when the suction nozzle is firmly sucked.

Alternatively or additionally, after opening the cover 110, dirt on the tube arrangement 14 or the connecting tube 58 can be removed via the opening.

The suction nozzle interface 24 is closer to the first housing side 16 than to the second housing side 18 . The positioning of the suction nozzle interface 24 and thus also the positioning of the suction nozzles held on the suction nozzle interface can be adjusted relative to the second housing side 18 ; the distance between the suction nozzle interface 24 and the second housing side 18 can be via a pipe fitting The device 14 can be explicitly adjusted.

In an embodiment, adjusting the positioning of the nozzle interface 24 relative to the second housing side 18 is accomplished by adjusting the orientation of the first tubular member 46 relative to the second tubular member 48 and by adjusting the orientation of the second tubular member 48 relative to the third tubular member 52 . This is also elaborated below.

The floor nozzle 26 has a housing 66 . The housing 66 has a generally square shape in the embodiment. The housing 66 has a front side 68 , a rear side 70 , opposing lateral sides 72 a , 72 b and an upper side 74 .

In the embodiment, the lateral sides 72a, 72b are arranged perpendicular to the front side 68 . The lateral side has a region 76 facing the rear side 70 on which the lateral side is chamfered.

Outside the housing 66 , on the rear side 70 is located a rolling device 78 . The rolling device includes one or more rotatable rollers. The floor nozzle 26 may be supported on the surface 28 via the rolling means 78 .

Arranged in the housing 66 are one or more support elements 80 via which the floor suction nozzles 26 can be supported on the surface 28 at a distance from the rolling device 78 . The support element 80 is configured, for example, as a sliding element or a rolling element for the surface 28 .

The floor suction nozzle 26 has a suction port 82 . The suction opening 82 faces the surface 28 when the floor suction nozzle 26 is supported on the surface 28 via the rolling means 78 and via the support element 80 . Via the suction opening, which can be constructed in multiple parts or in one piece, the surface 28 to be cleaned can be loaded with a suction flow.

The floor nozzle 26 has an interface 84 . Via this interface 84 , the floor suction nozzle 26 can be fluidly connected to the pipe arrangement 14 , and here the first pipe piece 46 , and can also be mechanically connected to the pipe arrangement 14 .

A line 86 is arranged between the suction opening 82 and the port 84 , via which the port 84 and the suction port 82 are fluidically connected to each other.

The interface 84 is designed in cooperation with the suction nozzle interface 24 in such a way that the pipe arrangement 14 can be inserted into the interface region 88 of the floor suction nozzle 26 via the first pipe 46 . The insertion direction (referring to the position in which the tube device 14 has been inserted on the interface region 88 ) is here in particular parallel to the second extension axis 44 .

The upper side 74 of the housing 66 of the floor nozzle 26 has a flat area 90 (FIG. 4).

A first fastening device 92 is arranged on the upper side 74 and in particular on the flat region 90 . Arranged on the housing 12 and here on the first housing side 16 is a second securing device 94 for cooperating with the first securing device 92 of the floor suction nozzle 26 .

In an embodiment, the first fixture 92 includes one or more insertion recesses 96 . The second fixing device 94 comprises one or more rib-like projections 98 , wherein the rib-like projections are arranged on the second housing side 18 in such a way that the rib-like projections In the standing position 22 it engages in the associated insertion recess 96 , and the standing position 22 is locked here.

In the standing position 22 the pipe arrangement 14 is in a basic position in which the pipe arrangement 14 in particular has a minimum length along the second extension axis 44 and wherein the corresponding position of the pipe arrangement 14 is then locked. This will also be described in detail below. In particular, the rib-like projections 98 and the associated engagement recesses 96 are designed in such a way that a positive fit is produced by the mutual engagement of the rib-like projections 98 and the engagement recesses 96 .

Tilt of the vacuum cleaner 10 in the standing position 22 is prevented by the cooperation of the first fixing means 92 and the second fixing means 74 .

The interaction of the first fixing means 92 and the second fixing means 94 is shown schematically in FIG. 5 .

The vacuum cleaner 10 has a center of gravity 100 (FIG. 4). The center of gravity 100 of the entire machine is located inside the housing 12 and, for example, in the level of the suction unit 32 .

When the vacuum cleaner 10 is erected on the surface 28 which is horizontal with respect to the direction g of the center of gravity, the projection line of the center of gravity 100 passes through the floor suction nozzle 26 in a vertical direction (parallel to the direction g of the center of gravity) and, for example, through the floor suction nozzle 26 of the flat area 90 .

In the standing position 22 , the center of gravity 100 is above the ground suction nozzle 26 . As a result, a stable position is achieved and the standing position 22 is locked.

The first fixing device 92 and the second fixing device 94 are designed to match each other, and in particular, a rib-like projection-like projection or a plurality of rib-like projection-like projections 98 and an associated engagement recess 96 or a corresponding number of them. The insertion recesses 96 are designed in such a way that an inclination of 10° (in particular at least 10°) does not release the fixation, ie the corresponding connection between the first fixation device 92 and the second fixation device 94 is It can withstand a slope of 10° in all directions.

The first fixing means 92 cooperate with the second fixing means 94 only when, as mentioned above, the pipe arrangement 14 is moved in ( FIGS. 1 to 4 ).

If, proceeding from this, the distance between the suction nozzle interface 24 and the first housing side 16 increases, the second securing device 94 and the first securing device 92 can no longer interact.

In an alternative or combined embodiment ( FIG. 6 ), (at least one) mating element 102 is arranged on the upper side 74 of the floor suction nozzle 26 and in particular on the flat area 90 . On the first housing side 16 of the housing 12 is arranged (at least one) corresponding magnet element 104 .

In the standing position 22 , the mating element 102 and the magnet element 104 are so close together that the magnetic holding force that locks the positioning of the floor suction nozzle 26 relative to the housing 12 acts.

This can be used, for example, to keep the floor nozzle 26 from tipping out of the housing 12 when the vacuum cleaner 10 is in the standing position 22 and lifted from the surface 28 to be cleaned.

In principle, the combination of the engaging element 102 and the magnet element 104 can also be used to fix the standing position 22 in a non-positive manner in such a way that the housing 66 of the floor nozzle 26 is releasably fastened to the surface of the vacuum cleaner 10 . on the housing 12.

In an exemplary embodiment, it is provided that the floor suction nozzle 26 is switchable for operation on hard or carpeted surfaces, wherein the one or more support elements 80 are rollers 106 (Fig. 4), also in the case of use on carpet surfaces the sliding elements are especially switchable.

A corresponding switching mechanism 108 is provided.

An openable door 112 is arranged on the housing 12 . The door 112 is held on the remaining housing 12 in a pivotable manner, for example, or can be removed as a whole. The door 112 covers the door opening 114 behind which the separator device 30 is positioned in the housing 12 .

In an embodiment (see also FIG. 8 ), the door 112 is securely fastened to the separator device 30 . When the separator device 30 is properly positioned in the housing 12, the door 112 "automatically" closes the door opening.

In the embodiment a filter box 116 (FIGS. 7 and 8) is provided in which the separator device 30 is arranged.

The filter box 116 forms a unit which can be positioned in the housing 12 of the vacuum cleaner 10 as a whole and can be taken out of the housing 12 of the vacuum cleaner 10 .

Door 112 is secured to filter box 116 .

The filter cassette 116 has an input interface 118 that is fluidly connected to the housing interface 56 when the filter cassette 116 is positioned in the housing 12 . The dirt-laden suction flow 118 enters the filter box 116 through the input port 118 .

Furthermore, the filter box 116 has an output interface 120 . The filtered suction flow escapes from the output port 120 and has a significantly smaller dirt load than the suction flow entering at the input port 118 .

The output port 120 is fluidly connected to the suction unit 32 .

Corresponding fixing means are provided in the housing 12 for fixing (firmly positioning) the filter box 116 in the housing 12 . Accordingly, the filter box 116 has corresponding means.

In an embodiment, the separator device is configured as a filter-separator device and is multistage. The corresponding stages are arranged in the filter box 116 .

The filter-separator arrangement 30 comprises in particular a pre-separator 112 for "coarse dust" and a filter arrangement 124 for dust. The pre-separator 122 is preceded by a filter device 124 for (fine) dust with reference to the flow guidance of the suction flow with adhering dirt.

The pre-separator 122 includes a receiving cage 126, which in particular is configured as a mesh cage. The receiving cage 126 is made of synthetic material, for example. The receiving cage 126 has, for example, the shape of a truncated cone with openings 128 predetermined by the grid structure. A mesh structure 129, eg in the form of a fabric, is arranged on the openings 128 (see Figure 8; the mesh structure is located on all the openings 128, but only one is drawn).

The mesh structure 129 defines, via the mesh width, which dust particles are collected in the holding cage 126 with respect to their size and which are permeable to the filter device 124 . Typical values for the mesh width of the mesh structure are in the range between (inclusive) 100 μm and 200 μm. The coarse dust collected by the pre-separator 122 is then composed of particles having an average diameter larger than the mesh width, while the fine dust collected by the filter device 124 is composed of particles having an average diameter smaller than the mesh width.

The accommodating cage 126 has an accommodating space 130 . During operation of the vacuum cleaner 10 , the suction flow of the adhering dirt is guided through the accommodating space 130 . The meshes of the mesh structure 129 of the mesh cage provide flow throughability.

A cover 132 is assigned to the receiving cage 126 . The cover 132 is used to cover the receiving cage 126 towards the side 134 facing away from the output interface 120 .

The cover 132 has a port 136 for the suction flow line. The interface 136 is fluidly connected to or forms the input interface 118 of the filter cassette 116 .

In an alternative embodiment, the interface is arranged on the receiving cage 126 .

On the receiving cage 126 a loop 138 is positioned on the side 134 (upper side). The collar 138 can here be a fixed part separate from the rest of the receiving cage 126 , or it can be integrally connected to the receiving cage 126 .

The collar 138 serves to fasten the receiving cage 126 to the filter box 116 and is designed in particular to be circumferential.

The filter box 116 includes a housing 140 with a wall 142 for this purpose. On the inner side of the wall 142 are arranged web elements 144 which protrude away from the wall 142 into the interior of the housing 140 .

The collar 138 has a circumferential collar 146 which rests on the web element 144 in the contact region of the receiving cage 126 when it is positioned on the filter box 116 . "Dropping down" of the receiving cage 126 is prevented by the abutment of the flange 146 on the web element 144 .

Furthermore, the collar 138 has a bow 148 which rests on the collar 146 outside the contact region for the web element 144 . A free space 150 is formed between the arcuate portion 148 and the receiving cage 126 . The arcuate portion 148 projects away from the side 134 in the direction of the bottom 152 of the receiving cage 126 .

The collar 138 and thus the receiving cage 126 can be buckled onto the wall 142 by means of the bow 148 ; when the receiving cage 126 is fastened to the filter box 116 , the area 154 of the wall 142 sinks into the free space 150 . . The transition area to the bow 148 rests on the end face 156 of the wall.

The receiving cage 126 is hooked into the housing 140 of the filter box 116 via the collar 138 . Downward mobility is prevented by flange 146 and arcuate portion 148 . Mobility in the transverse direction (with some play) is prevented by the arcuate portion 148 .

The receiving cage 126 can be fastened to the filter box 116 via the collar 138 in a simple and in particular tool-free manner by hooking into the housing 140 and correspondingly removed in a simple and tool-free manner.

The contact region of the flange 146 for the web element 144 is arranged, in particular, diametrically opposite the segment 148 .

In an embodiment ( FIGS. 8 to 10 ), the cover 132 is configured as a flip cover. A pivot hinge 158 is arranged on the ring 138 . The pivoting hinge 158 is arranged in particular opposite the bow 148 . In this region, the loop 138 is reinforced on the basis of the bow 148 , and the pivoting hinge 158 can thus be integrated into the loop 138 in this region in a simple manner.

A pin-shaped active element 160 is attached to the cover. The cover 132 has an underside 162 which faces the receiving space 130 and here the bottom 152 when the cover is closed.

The pin-shaped actuating element 160 is mounted on the underside 162 and projects laterally beyond this underside. When the cover 132 is closed, the pin-shaped active element 160 sinks into the receiving space 130 .

Cover 132 has a median line 164 and a median plane 166 . The pin-shaped active element 160 is arranged between the center line 164 or center plane 166 and the pivot hinge 158 . The pin-shaped active element is in particular closer to the pivot hinge 158 than the center line 164 .

The pin-shaped active element 160 is designed in such a way that, when the cover 132 is opened, the pin-shaped active element is moved through the receiving space 130 (see FIGS. 8 and 10 ) by tilting up and does not rub against the receiving cage. The wall 126, or the movement of the cover 132, is not restricted by the collision of the pin-shaped active element 160 with such a wall.

The pin-shaped actuating element 160 is, in particular, wedge-shaped (see FIG. 10 ) and has a first side 168 a and an opposite second side 168 b which are oriented at an acute angle to one another.

When the cleaner 10 is in operation, dirt is collected in the accommodating space 130 of the pre-separator 122 .

The filter box 116 with the pre-separator 122 can be removed from the housing 12 .

The containment cage 126 with the cover 132 is removable. The receiving cage can be releasably fastened to the filter box 116 .

In an alternative embodiment, the cover is not fastened directly to the holding cage 126 , but is fastened to the filter box 116 outside the holding cage 126 . The holding cage can thus be removed without the cover.

When the cover 132 is opened by flipping up, the pin-shaped active element 160 moves through the receiving space 130 . When the receiving space 130 is filled with dirt to the corresponding extent, the pin-shaped active element 160 moves through the dirt. The dirt is loosened. This makes it easier to empty the receiving cage 126 .

In addition, the pin-shaped active element 160 can also carry dirt, in the form of a shovel, in order to likewise facilitate emptying.

In further embodiments, the containment cage 126' is provided with a cover 170 (FIGS. 11-14). The receiving cage 126' is basically constructed in the same way as the receiving cage 126, wherein the receiving cage 126' has a ring 172.

The cover 170 is configured as a rotating cover that can be secured to the containment cage 126' via a snap lock.

The ring 172 disposed in the receiving cage 126' includes a tongue plate 174. In the embodiment shown, the four gussets are arranged at an angular spacing of 90°.

The tongue 174 has a recess 176 into which the cover 170 sinks with an edge region 178 . As long as the edge region 178 sinks into the recess 176, the tongue plate 174 prevents the cover 170 from being removed upwardly away from the bottom 152' of the receiving cage 126'.

The cover 170 itself is provided with a recess 180 corresponding to the gusset 174 . In the embodiment shown, the four recesses 180 are arranged at an angular spacing of 90°.

When the recess 180 is located in the recess 176 of the gusset 174, the corresponding tongue 174 no longer prevents the upward liftability of the cover 170, that is, when the recess 180 corresponds to the tongue 174, the cover 170 can be lifted upwards.

In the locked position of the cover 170 , it is positioned in such a way that the edge region 178 is correspondingly located inside the tongue 174 .

In the exemplary embodiment, the cover 170 is designed in such a way that it has a lateral stop 182 on the cover 170 , which can stop on the tongue plate 174 . Further rotation of the cover 170 relative to the collar 172 is thereby prevented. After the contact of the tongue 174 against the lateral stops 182 , the cover 170 can be rotated in such a way that the recess 180 corresponds to the recess 176 of the tongue 174 . The cover 170 can then be lifted.

On the cover 170 a plurality of pin-shaped active elements 186 are arranged on the underside 184 . These pin-shaped active elements are mounted on the cover 170 in particular as flags.

When the cover 170 is closed, the pin-shaped active element 186 sinks into the receiving space 130 .

Here, the pin-shaped active element can reach the bottom 152'.

In particular, a plurality of pin-shaped active elements 186 are arranged diametrically opposite each other.

The pin-shaped actuating element 186 can here be designed with a multi-branched tip or, in order to increase the surface, can be produced, for example, as a bundle of a plurality of spaced-apart or interconnected thin tube parts.

According to the port 136 for the suction flow line, a port 188 is provided on the cover 170 .

Cover 170 is removed in order to empty containment cage 126' filled with dirt. To this end, the cover 170 is rotated. By turning the pin-shaped action element 186 into the receiving space 130 , the dirt is loosened and/or the dirt remains attached to the pin-shaped action element 186 .

When the cover 170 is removed, the holding cage 126' can then be easily emptied, or dirt adhering to the pin-shaped active element 186 can be shaken off.

By means of the pin-shaped active elements 186 or 160 in the cover 132 or the cover 170 , the receiving cage 126 or 126 ′ of the pre-separator 122 can be emptied in a simple manner after removal from the housing 12 . Due to the relative movement of the pin-shaped active element 160 or the pin-shaped active element 186 when the lid 132 is opened or when the lid 170 is opened, the dirt in the receiving cage 126 or 126 ′ is “scooped up” and thus freed from it. Loose lumps.

As already mentioned above, the pin-shaped active element 186 can also be used as an attachment element for dirt.

A filter device 124 for dust is positioned in the housing 140 of the filter box 116 as the second stage ("fine stage") of the filter-separator device after the pre-separator 122 ("fine stage"). "Coarse Division"). In particular, the filter device is releasably positioned in the housing 140 .

In the exemplary embodiment, corresponding tongue-shaped insert means 190 for the filter device 124 are arranged on the wall 142 in order to enable cleaning of the filter device 124 in the housing 140 .

In an embodiment, the filter device 124 is configured as a cartridge filter 192 .

The filter device 124 includes a filter element 194 which is, for example, tubular in shape and has filter pleats 198 . The filter pleats 198 are seated on the bottom 196 via which the filter device 124 is in turn fastened to the housing, eg via a bayonet connection.

The openings in the filter element 194 surrounded by the filter material of the filter pleats 198 and the openings in the bottom 196 correspond to the output port 120 of the filter box 116 . For example, the output interface 120 is then formed on the bottom 196 via the filter arrangement 124 .

The filter element 194 is closed towards the pre-separator 122 with respect to its interior space. The spaces between the filter pleats 198 are open to the pre-separator 122 .

The suction flow (indicated by reference numeral 200 in FIG. 9 ) then enters the filter device 124 and passes there through the end side 202 of the filter element 194 between the filter pleats 198 .

The suction flows through the filter material flowing through the filter folds 198 , wherein the dust particles do not penetrate the filter element 194 , that is to say are essentially caught on the filter element 194 .

A suction flow is provided at the output port 120 with a dust load which is considerably lower than the suction flow introduced into the input port 118 .

As the filter element 194 rotates in the housing 140, the insert means 190 act on the filter pleats 198 and "jitter" the filter pleats, thereby loosening adhering dust particles. Thereby, the dust load on the surrounding environment can be reduced when the filter box 116 is emptied.

When the filter box 116 is removed from the housing 12 of the cleaner 10, as mentioned above, the containment cage 126 or 126' can be removed and emptied.

When required, the filter device 124 , which is snapped into the housing 140 in particular via the base 196 (especially in the configuration as a cartridge filter 192 ), can be removed and replaced or shaken out, wherein the dust can then pass through the end side 202 is drained from the filter unit.

The suction unit 32 has a suction socket 204 . The output port 120 of the filter cassette 116 is fluidly connected to the suction nipple 104 .

In the housing 12 of the vacuum cleaner 10 an exhaust air filter 206 is arranged behind the suction unit 32 . The exhaust filter 206 is used, among other things, to filter out motor fines.

The flow deflection element 208 is assigned to the fan motor 34 . The flow diverting element 208 is designed in particular as a hood.

In an embodiment, the flow diverting element 208 is positioned between the filter box 116 and the exhaust filter 206 around the fan motor 34 .

In principle, it is also possible for a corresponding flow diverting element to be located downstream of the exhaust gas filter 206 .

The flow diverting elements have corresponding walls that define a first flow area 210 and a second flow area 212 having opposite main flow directions. For example, the second flow region 212 annularly surrounds the first flow region 210 .

On the transition 214 between the first flow area 210 and the second flow area 212 is arranged a noise resistant wall made of a noise resistant material having a noise reflectivity of at least 94% .

The wall on the transition is in particular annular.

The transition is here formed in the region surrounding the fan motor 34 .

In an embodiment, a ring of foam is disposed on transition portion 214 .

The housing 12 has a closable cover 216 in the region of the exhaust air filter 206 in order to enable access to the exhaust air filter 214 for changing the exhaust air filter.

The cover 216 is arranged, for example, adjacent to the first housing side 16 .

In the housing 12, a space 218 is formed between the housing wall 38 and the filter box 116 and the suction unit 32, which extends along the first extension axis 20 and substantially occupies the exhaust filter 206 and the second housing Total shell height between body sides 18 .

Space 220 is formed in housing 12 after exhaust filter 206 , which then transitions into space 218 . The space 220 between the first housing side 16 and the exhaust filter 206 is used as a diversion area for flow diversion into the space 218 .

A plurality of openings 222 are arranged on the housing wall 38 , wherein the openings are spaced apart in a direction parallel to the first extension axis 20 .

The opening 222 is fluidly connected to the external space. Exhaust air of the suction unit 32 that is cleaned air can escape from the space 218 via the opening 222 into the outer space.

On the openings 222 , in particular in the interior of the housing, are respectively open porous structures 224 , for example in the form of foam elements.

In an embodiment, an open porous structure is arranged in the space 220, which is formed, for example, by foam.

When the vacuum cleaner 10 is in operation, the flow path 226 on the vacuum cleaner 10 for the suction flow comprises a first region 228 which is located in the pipe arrangement 14 . The dirt-laden suction flow flows through the first region 228 in the pipe arrangement 14 to the connecting pipe 58 .

The main flow direction of the flow in this first region 228 is here substantially parallel to the second extension axis 44 .

In the housing 12 , a second region 230 of the flow path 226 is formed between the housing interface 56 and the exhaust filter 206 .

The diversion of the flow from the first region 228 to the second region 230 takes place on the connecting pipe 58 .

In the second region 230 , the main flow direction is substantially parallel to the first extension axis 20 and is opposite to the main flow direction in the first region 228 .

The flow-reversing element 208 on the fan motor 34 realizes a flow reversal in the second region 230 , which serves in particular to reduce noise emissions.

The third region 232 is formed by the space 218 . The exhaust air of the suction unit 32 which is cleaned air flows in the third region 232 . In the third region 232 , the main flow direction is at least approximately parallel to the first extension axis 20 , and the main flow direction is parallel to the main flow direction in the first region 228 , or opposite to the main flow direction in the second region 230 .

The space 220 serves as a diverting area for diverting the flow from the second area 230 to the third area 232 .

The flow path is shown in FIG. 2 .

The distance traveled through the flow path 236 is approximately three times the height of the housing 12 in the dimension, that is to say that the dirt-laden suction flow first flows through the second region 228 and then through the second region 230 , in which it takes place. Clean, and then cleaner, exhaust gas flows through the third region 232 and out into the surrounding environment.

Due to the larger flow path, low noise emissions can be achieved due to the corresponding flow path.

The flow diverting element 208 also provides low noise emissions with a corresponding configuration of the transition portion 214 .

The air flow is diverted with moderate efficiency by the flow diverting element 208 , in particular to reduce noise emissions.

The tube arrangement 14 is telescopic (Figs. 15 to 25). For this purpose, the pipe arrangement 14 includes a third pipe 52 , which is firmly mounted on the housing wall 38 . The third tube 52 has an extension along the second extension axis 44 . The third pipe piece 52 is particularly rigid.

A second pipe element 48 is arranged in the third pipe element and is guided here so as to be movable longitudinally in the direction of the second extension axis 44 . The second pipe piece 48 is likewise of rigid design. It is constructed in particular in the form of a cylinder. Accordingly, the inner space of the third pipe member 52 is (hollow) cylindrical.

The first pipe element 46 is arranged in the second pipe element 48 so as to be longitudinally displaceable on the second extension axis 44 . The first pipe piece 46 is cylindrical in shape. The second pipe piece 48 accordingly has a (hollow) cylindrical inner space.

The suction nozzle interface 24 is arranged on the first pipe piece 46 .

The corresponding relative positioning of the second pipe member 48 with respect to the third pipe member 52 can be clearly adjusted. Accordingly, the positioning of the first tubular member 46 relative to the second tubular member 48 (and thus relative to the third tubular member 52 ) can be positively adjusted.

The pipe arrangement 14 is assigned a first locking device 240 (see eg FIG. 19 ) which acts between the first pipe 46 and the second pipe 48 and in the locking position the first pipe 46 is fastened to the second pipe 46 on pipe fitting 48 . The locked position can be released.

Furthermore, the pipe arrangement 14 is assigned a second locking device 242 which acts between the third pipe element 52 and the second pipe element 48 . The second locking device 242 secures the second tube 48 on the third tube 52 in the locked position. This locked position of the second locking device 242 is releasable.

Furthermore, a third locking device 244 is assigned to the pipe arrangement. The third locking device 244 acts between the first tube 46 , the second tube 48 and the third tube 52 . In the releasable locking position of the third locking device 244 , the third locking device fastens the second pipe piece 48 on the third pipe piece 52 . The locked position can be released to the unlocked position. In the unlocked position of the third locking device 244 , the mobility of the second pipe element relative to the third pipe element 52 is released, but in this case a specific positioning of the second pipe element 48 relative to the third pipe element 52 is possible by means of the second locking position 242 . Can be fastened.

The transition from the locked position to the unlocked position of the third locking device 244 is predetermined via the first tube 46 . In an embodiment, the positioning of the first tubular member 46 relative to the second tubular member 48 determines the transition from the locked position to the unlocked position of the third locking device 244 .

In further embodiments, force action determines the transition.

The first locking device 240 includes a first sink element 246 . The first submerged element 246 is, for example, a sphere or a roller.

On the first tube 46 , first recesses 248 are arranged spaced apart in the direction of the second extension axis 44 , see also FIGS. 15( a ), 15 ( b ) and 16 .

In an embodiment, three spaced apart first recesses 248 are arranged on the first tube 46 .

The first recess 248a closest to the nozzle interface 24 here defines the positioning of the first tube 46 relative to the housing 12 and thus the positioning of the nozzle interface 24 for the standing position 22 . When the first sink element 246 sinks into the first recess 248a and the first locking means 240 is locked, the positioning of the nozzle interface 24 relative to the first housing side 16 is achieved, in which the first fixing means 92 and the second securing means 94 may cooperate with each other to secure the standing position 22 .

This state is shown in FIGS. 1 to 4 .

The first locking device 240 also has a first movable blocking element 250 (see eg FIG. 19 ). The movable first blocking element 250 has an abutment region 252 for the first sink element 246 . When this abutment area 252 is located above the first sink element 246 , the first sink element 246 is thereby held in the corresponding first recess 248 and the locking position is established.

The locked position of the first locking device 240 is shown in FIG. 19 .

Adjacent to the contact region 252 , the first blocking element 250 has a first receptacle 254 . The first receptacle 254 has a chamfered wall 256 facing the abutment region 252 .

When the first receptacles 254 are located above the first sink elements 246 , the first sink elements 246 may sink out of the corresponding first recesses 248 and sink into the first receptacles 254 .

A penetrating recess 258 is formed in the second pipe member 48 . When the second sink element 246 is located in the recess 258 and in the corresponding first recess 248 , then longitudinal movability between the first tube 46 and the second tube 48 is prevented. When the first receptacle 254 is positioned above the recess 258 by corresponding positioning of the first blocking element 250 , then the first sink element 246 can sink completely from the first receptacle 254 and accordingly release the second tube 48 relative to the first Mobility of the tube 46 .

The first blocking element 250 is arranged on the guide portion 260 and is guided longitudinally movable in a direction parallel to the second extension axis 44 .

Arranged on the first blocking element 250 is a restoring device 262 which is formed in particular by one or more springs. The reset device is positioned on the guide portion 260 . When the first blocking element 250 is moved in such a way that the first receptacle 254 is located above the recess 258 , the force of the restoring device 262 must be overcome. When no external force acts on the first blocking element 250 , it is reset, and the abutment region 252 covers the recess 258 and in this case holds the first sink element 246 in the first receptacle 254 and is This in turn prevents longitudinal movability of the first tubular member 46 relative to the second tubular member 48 .

The second locking device 242 has a second sink element 246 , which is spherical or roller-shaped, for example. Second recesses 266 are spaced apart in a direction parallel to the second extension axis 44 on the second tube 48 . A through recess 268 is arranged on the third pipe piece 52 . In the locked position, the second sink element 264 is seated in the second recess 266 and recess 268 , that is to say sinks into it.

The second locking device 242 also has a second blocking element 270 , which includes an abutment region 272 . In principle, the contact area 272 has the same function as the contact area 252 of the first blocking element 252 . The second blocking element 270 accordingly has a second receptacle 274 .

In the locked position of the second locking device 242, the second sink element 246 sinks into the respective second recess 266 and recess 268, and the abutment area 272 is located above the second sink element 264 and locks the positioning.

By moving the second blocking element 270 , the second receptacle 274 is brought over the second sink element 264 , that is to say over the recess 268 , and the second sink element 264 can be sunk out and here into the second receptacle Section 274. As a result, the positive fit between the second pipe part 48 and the third pipe part 52 is eliminated, and the locking position is eliminated for the second locking device 242 .

The second blocking element 270 is guided longitudinally displaceably on the guide 276 . The direction of movement is parallel to the second extension axis 44 .

A restoring device 278 is assigned to the second blocking element 270 , which is formed in particular by a spring.

For the movement of the second blocking element 270 in order to bring the second receptacle 274 above the second sink element 264, the force of the restoring device 278 must be overcome. A corresponding external force is required for this. In the absence of an external force, the reset device 278 provides for a back displacement of the second blocking element 270 in order to bring the abutment area 272 over the second submerged element 264 and press the second submerged element against the corresponding first submerged element 264. two recesses 266 .

A number of corresponding second receptacles 274 are arranged on the second tube 48 in order to enable a corresponding variable adjustment and tightening of the positioning of the second tube 48 relative to the third tube 52 .

A slider 280 is arranged on the housing 12 of the cleaner 10 (eg FIG. 4 ). The slide 280 is guided longitudinally displaceably parallel to the second extension axis 44 . The upper side of the slide 280 protrudes beyond the second housing side 18 in order to enable maneuverability and in particular press maneuverability.

The slider 280 extends along the housing wall 38 and here along the third tube 52 to the second blocking element 270 . The second blocking element 270 is effectively connected to the slider 280 for force transmission. The connection is, for example, solid.

In an embodiment, the second blocking element 270 is disposed approximately in the height of the area above the fan motor 34 .

Corresponding guides for the longitudinal movability of the slide 280 are provided on the housing wall 38 .

In principle, it is also possible for the slide 280 to be arranged on the pipe arrangement 14 in a longitudinally displaceable manner.

The first blocking element 250 is coupled with the slider 280, but is not continuously connected therewith.

The second blocking element 270 ( FIG. 19 ) has an end-side end 282 in the continuation of the contact region 252 . With this end-side end 282 , the second blocking element 270 can act on the first blocking element 250 , and by moving the slide 280 and thus the second blocking element 270 , the first blocking element 250 can in principle be moved along the same , as long as the second pipe member 48 does not move relative to the third pipe member 52 .

The guide 260 for the first blocking element 250 is firmly connected to the second pipe piece 48 . The guide 276 for the second blocking element 270 is firmly connected to the third pipe piece 52 .

The third locking device 244 comprises a third submerged element 284 , which is designed in particular as a roller or a ball. The third sink element 284 is here positioned between the first sink element 246 and the second sink element 264 with reference to the direction along the second extension axis 44 .

A receptacle 286 for the third sink element 284 is formed on the third pipe piece 52 . Correspondingly, a receptacle 288 for the third sink element 284 is formed on the second pipe piece 48 . When the third sink element 284 is seated in the receptacles 286 and 288 , a form-fitting connection is established between the third pipe part 52 and the second pipe part 48 , and the second pipe part 46 is thereby connected to its It is movably fastened to the third pipe piece 52 . Even when the second locking device 242 is not locked, that is to say in the unlocked position, when the third locking device 244 is in its locking position (in which the third sink element 284 is seated in the receptacle 286 and the accommodating portion 288 ), the second tubular member 48 also cannot move in the third tubular member 52 .

The receptacle 288 in the second tube 48 is open towards the first tube 246 . Here, the wall 290 of the first tube prevents the movability and thus the sinkability of the third sink element 284 from the receptacles 286 and 288 .

The first tube 46 has a recess 294 for the third sink element 284 adjacent to the end 292 remote from the nozzle interface 24 (see eg Figure 20 or Figure 25). This recess 294 is disposed on a different side than the first recess 248 . For example, the recess 294 and the first recess 248 are arranged diametrically opposite.

The first submerged element 284 is, for example, arranged diametrically opposite the second submerged element 264 (wherein it can be positioned at a different height relative to the second extension axis 44 ).

The recess 294 is assigned to the third sink element 284 . The locked position of the third locking means 244 occurs when the third sinking element 284 is not sinking into the recess 294 .

When the first pipe element 46 is in a specific position relative to the second pipe element 48 , that is, in the position in which the recess 294 is located opposite the third submerged element 284 , the third submerged element 284 can be received from the third pipe element 52 . Section 286 sinks out. The positive fit between the second pipe part 48 and the third pipe part 52 is thereby cancelled, and an unlocked position is reached, in which the third locking device 244 releases the locking of the third pipe part 52 in the second pipe part 48 . In this unlocked position of the third locking means 244 , only the second locking means 242 are functional with regard to the tightening of the positioning of the second tubular element 48 relative to the third tubular element 52 .

The transition from the locked position to the unlocked position of the third locking device 244 is determined by the positioning of the first tube 46 relative to the second tube 48 , that is when the recess 294 is positioned opposite the third sink element 284 and the third sink When element 284 sinks into recess 294 . In this positioning, the maximum telescopic position of the first pipe element 46 relative to the second pipe element 48 is reached.

The recess 294 is arranged in such a way that the third sinking element 284 can sink in only when the first locking device 240 is in the locking position. The height spacing between the recesses 294 and the corresponding highest first recess 248 (marked with 248b in FIG. 25 ) corresponds to the spacing between the first sink element 246 and the third sink element 284 .

The relative height spacing between the first submerged element 246 and the third submerged element 284 along the second extension axis 44 and the positioning of the first tube 46 relative to the third tube 52 or the second tube 48 relative to the third tube 52 Irrespective of remaining constant; when the third sink element 284 sinks out of the receptacle 286 of the third tubular part 52 and sinks into the recess 294 , it is synchronized with the second tubular part 48 by the movement of the second tubular part 48 relative to the third tubular part 52 . The described synchronization is achieved because the guide 260 is firmly arranged on the second pipe 48 and the third sink element 284 is fixed relative to the second pipe 48 in a direction parallel to the second extension axis 44 .

Alternatively, it is possible that the transition from the locked position of the third unlocking device 244 to the unlocked position is force-controlled.

In the embodiment also shown in FIG. 19 as an alternative with dashed lines, no sink element corresponding to the third sink element 284 is provided.

The force loading (instead of a form-locking connection via a sink element) provides a force-locking connection between the third pipe piece 52 and the second pipe piece 48 for correspondingly securing the relative positioning. The unlocked position is reached when, for example, by corresponding positioning of the first pipe piece 46 so that there is no longer a positively locking coupling for the loading force.

For force application, a force application element 296 is provided, for example a spring-loaded lever element.

In the unlocked position of the third locking device 244 (in which the second tubular element 48 and the first tubular element 46 are locked together by the first locking device 240 ), the combination of the second tubular element 48 and the first tubular element 46 as a whole is relative to the The third pipe member 52 is movable. As a result, the first blocking element 250 is decoupled from the second blocking element 270 and the contact of the first blocking element on the end-side end 282 and thus the slider 280 is released. The slider 280 no longer acts on the first locking device 240 .

The tube assembly 14 operates as follows using the locking devices 240, 242, 244:

In the standing position 22 of the vacuum cleaner 10 (see FIGS. 1 to 4 ), the second pipe part 48 completely sinks into the third pipe part 52 within its movement stroke. The first pipe part 46 sinks completely into the second pipe part 48 during its movement stroke. The positioning of the second tube 48 relative to the third tube 52 is secured by the second locking means 242 and the third locking means 244 .

The suction nozzle interface 24 protrudes beyond the first housing side 16 to such an extent that the floor suction nozzle 76 can be fastened and, in the standing position, the first fastening device 92 can act on the second fastening device 94 .

The length of the tube arrangement 14 is increased for the suction operation relative to the standing position 22 .

For this purpose, the first pipe element 46 is first removed from the second pipe element 48 .

For this purpose, the slide 280 is actuated and moved downwards, that is to say in the direction of the suction nozzle interface 24 . In this case, the slider moves the second blocking element 270 and also the first blocking element 250 via the stop of the end-side end 282 . When the first receptacle 254 is located above the recess 258 , the first sink element 246 sinks out, wherein the positive fit between the first tube part 46 and the second tube part 48 is then cancelled, and the first tube part 46 is relative to the second tube part 46 . The second pipe member 48 is movable.

The corresponding displacement positioning is locked by terminating the force acting on the slide 280 without the sinking element 246 correspondingly sinking into the recess 248 and depending on the desired longitudinal positioning and retention via the abutment area 252 .

When the slider 280 is manipulated, the second locking device 242 is also locked simultaneously with the first locking device 240 . Due to the third locking means 244 , however, the second pipe piece 48 remains fastened to the third pipe piece 52 as long as the third sink element 248 does not sink into the recess 294 .

Different positioning of the first tube 46 relative to the second tube 48 is shown in FIGS. 15(a), 15(b) and 16, wherein the second tube 48 is fastened to the third tube 52 via the third locking means 244 superior.

The positioning of the first tubular member 46 relative to the second tubular member 48 indicated in Figures 15(a), 15(b) is the positioning with the locked position. The positioning according to Fig. 15(a) corresponds to the positioning for the operation of the hand-held aspirator. The positioning according to FIG. 15( b ) corresponds to the positioning for the operation of the floor extractor for very short operators.

The positioning of the suction nozzle interface 24 and thus of the suction nozzle relative to the first housing side 16 can therefore be adjusted within a predetermined distance.

FIG. 20 shows the locking position for the first locking device 240 , for the second locking device 242 and for the third locking device 244 , which corresponds to the standing position 22 , that is to say in which the pipe device 14 has Minimum length.

FIG. 21 shows the position of the pipe arrangement 14 corresponding to the position according to FIG. 16 .

The locking of the first locking device 240 is also achieved when the first pipe part 46 is pulled out of the second pipe part 48 to such an extent that the third sink element 284 can penetrate into the recess 294 in the region of the end 292 . Location. The third locking means 244 are now in the unlocked position and, in principle, the second pipe element 48 is longitudinally movable relative to the third pipe element 52 and the second locking means 242 now determine the relative position of the second pipe element 48 to the third pipe element 52 Mobility, and the moving position is secured by adjusting the corresponding locking position of the second locking means 242 . Correspondingly different positioning for the locked position of the second tubular member 48 relative to the third tubular member 52 is shown in FIGS. 17 , 18 and 22 .

When the second pipe element 48 is moved relative to the third pipe element 52 from the basic position in which the third locking device 244 is locked, the first blocking element 250 is decoupled from the slider 280 and thus the second blocking element 270 . See eg Figure 22 for this. The first blocking element 250 is spaced apart from the second blocking element 270 .

When the second pipe element 48 is moved back into the third pipe element 52 within its corresponding stroke by locking the second locking means 242 from the pulled out position, then when the first blocking element 250 stops against the second blocking element The end position is reached when the end 282 of the end side of 270 is on. The locking position of the first locking device 240 can then be reached by actuating the slide 280 and the third sinking element 284 can sink into the receptacle 286 . As a result, the second pipe element 48 is again fastened to the third pipe element 52 and the first pipe element 46 can move in the second pipe element 48 . The standing position 22 can then be reached again.

With the pipe arrangement according to the invention, the length of the pipe arrangement 14 can be adjusted over a large length range via (at least) the three pipe elements 46 , 48 , 52 . Only one operating element, the slider 280 , needs to be provided here. This results in high operating comfort.

Positioning of slide 280 from standing position 22 determines whether second locking device 242 (and first locking device 240 ) is in the locked position. When the first locking device 240 is not in the locked position, the first tubular member 46 can move relative to the second tubular member 48 . The movability of the second pipe element 48 relative to the third pipe element 52 is predetermined by the positioning of the first pipe element 46 relative to the second pipe element 48 without having to provide additional operating elements.

The length adjustment of the tube arrangement 14 has a high operating comfort.

In principle, the solution according to the invention can also be applied to pipe arrangements with more than three pipe elements. A pipe arrangement with three pipes 46, 48, 52 and corresponding locking means 240, 242, 244 forms to some extent the basic unit for structures with more than three pipes.

According to the present invention, a vacuum cleaner 10 having a wide range of usable functions is provided.

The vacuum cleaner can be used as a floor cleaner by moving the floor nozzle 26 out of the standing position 22 by moving the nozzle interface 24 .

The optimal positioning for the user can be adjusted. The user can hold the vacuum cleaner 10 on the arcuate handle 60 of the connecting tube 58 and perform a suction motion.

The vacuum cleaner 10 can be stored in a space-saving manner in the standing position 22 .

The vacuum cleaner 10 can also be used as a hand-held vacuum cleaner, which is free to hold and eg not supported on the ground. The floor suction nozzles 26 are then replaced by corresponding suction nozzles. The required length can be adjusted in a simple manner via the pipe arrangement 14 by means of the operating slide 280 .

"Upright aspirator" with an upright function can be implemented, but among them, the vacuum cleaner can also be used as a hand-held aspirator.

The vacuum cleaner 10 can be realized in a compact, space-saving manner. It can be constructed with relatively low mass and can be used quickly. The vacuum cleaner can be parked space-savingly in the standing position 22 on the basis of the upright function according to the wishes of the user, without the need for a wall or the like for leaning on.

Due to the compact construction, suction can be performed, for example, under furniture.

Through the flow path 226 and the flow regions 210, 212, a reduction in noise emission is obtained with little flow losses, wherein the means for noise reduction do not significantly impair the performance of the vacuum cleaner 10 with respect to its suction function.

Dirt emptying can be carried out in a simple manner by means of one or more pin-shaped active elements 116 , 186 on the preseparator 122 .

List of reference signs

10 Vacuums

12 shell

14 Pipe fittings

16 First housing side

18 Second housing side

20 First extension axis

22 Standing position

24 Nozzle interface

26 Ground nozzles

28 surfaces

30 Separator device

32 Suction unit

34 Fan motor

36 Fans

38 Shell wall

40 Third housing side

42 Additional housing walls

44 Second extension axis

46 First pipe fitting

48 Second pipe fitting

50 Movement direction

52 Third pipe fitting

54 ports

56 Shell interface

58 Connecting Fittings

60 bow handle

62 areas

64 Free space

66 shell

68 Front

70 rear

72a on the side of the side

72b on the side of the side

74 upper side

76 width

78 Rolling device

80 Placing components

82 suction port

84 interface

86 Ventilation

88 interface area

Area above 90

92 First Fixture

94 Second Fixture

96 Embedding recess

98 rib-like bulge-like bulge

100 center of gravity

102 Mating elements

104 Magnet element

106 Roller

108 Switching mechanism

110 cover

112 doors

114 door openings

116 Filter Box

118 Input interface

120 output interface

122 Pre-separator

124 Filter units for dust

126 Housing Cage

126’ holding cage

128 openings

129 mesh structure

130 storage space

132 cover

134 side

136 interface

138 Rings

140 shell

142 Wall

144 Tab element

146 Flange

148 bow

150 free space

152 Bottom

152’ bottom

154 area

156 end side

158 Flip hinge

160 pin-shaped active element

162 Underside

164 Intermediate line

166 Midplane

168a first side

168b second side

170 cover

172 Rings

174 Angle tongue plate

176 Recess

178 Marginal area

180 Recess

182 Lateral stop

184 Underside

186 Pin-shaped active element

188 interface

190 Embedded Components

192 Cartridge Filters

194 Filter elements

196 Bottom

198 Filter pleats

200 suction flow

202 end side

204 Suction nipple

206 Exhaust Filter

208 Flow steering element

210 First flow area

212 Second flow area

214 Transition Department

216 cover

218 Space

220 spaces

222 port opening

224 Open Porous Structures

226 flow path

228 First area

230 Second area

232 The third area

240 First locking device

242 Second locking device

244 Third locking device

246 First sink element

248 First recess

248a First recess

248b First recess

250 first blocking element

252 Snap area

254 First accommodating part

256 Beveled Wall

258 Recess

260 Guidance

262 Reset device

264 Second sink element

266 Second recess

268 Recess

270 Second blocking element

272 Snap area

274 Second accommodating part

276 Guidance

278 Reset device

280 Sliders

282 end side end

284 Third submerged element

286 Receptacle

288 Receptacle

290 wall

292 end

294 Recess

296 Force Loading Elements

Claims (24)

Claims 1. A separator device for a vacuum cleaner (10) comprising a pre-separator (122) having a receiving cage (126; 126') having a receiving space (130), wherein , during operation of the separator device, the suction flow laden with dirt flows through the receiving space (130), characterized in that the receiving cage (126; 126') is assigned a cover (132; 170) , at least one pin-shaped active element (160; 186) is arranged on the cover, the pin-shaped active element protrudes into the receiving space (130) when the cover (132; 170) is closed, and The pin-shaped acting element can act on the dirt in the receiving space (130) when the cover (132; 170) moves relative to the receiving cage (126; 126'), A connection for the suction flow line is arranged on the cover. 2 . The separator device according to claim 1 , wherein the at least one pin-shaped active element ( 160 ; 186 ) is mounted on the cover ( 132 ; 170 ) as a flag. 3 . 3. The separator device according to claim 1 or 2, characterized in that, in the case of the release movement of the cover (132; 170), when the cover is fixed on the accommodating cage (126; 126') ), the at least one pin-shaped active element (160; 186) moves in the receiving space (130). 4 . The separator device according to claim 1 , wherein the at least one pin-shaped active element ( 160 ; 186 ) is of wedge-shaped and/or multi-branched design. 5 . 5. Separator device according to claim 1 or 2, characterized in that the cover (132; 170) has an underside (162; 184) which points when the cover (132; 170) is closed The receiving space ( 130 ) and the at least one pin-shaped active element ( 160 ; 186 ) are oriented on the underside ( 162 ; 184 ) transversely to the underside. 6. Separator device according to claim 1 or 2, characterized in that the holding cage (126; 126') is configured as a mesh cage. 7. Separator device according to claim 1 or 2, characterized in that the cover (132; 170) can be completely released from the receiving cage (126; 126'). 8. Separator device according to claim 1 or 2, characterized in that the cover (132) is placed on the receiving cage (126) as a flip cover. 9 . The separator device according to claim 8 , wherein the cover ( 132 ) has a median axis ( 164 ) or a median plane ( 166 ) and the at least one pin-shaped active element ( 160 ) is arranged. 10 . Between the median axis (164) or median plane (166) and the flip hinge (158). 10. Separator device according to claim 1 or 2, characterized in that the cover (170) is configured as a rotating cover. 11. Separator device according to claim 10, characterized in that the cover (170) can be fixed on the receiving cage (126') via a bayonet device. 12. Separator device according to claim 10, characterized in that the at least one pin-shaped active element (186) moves on the trajectory of a rail when the cover (170) is rotated. 13. Separator device according to claim 10, characterized in that there are at least two opposing pin-shaped active elements (186). 14. Separator device according to claim 1 or 2, characterized in that the at least one pin-shaped actuating element (160; 186) is rigidly constructed. 15. Separator device according to claim 1 or 2, characterized by having a configuration as a filter-separator device, wherein a filter device (124) for dust is placed after the pre-separator (122). 16. Separator device according to claim 15, characterized in that the filter device (124) for dust is configured as a cartridge filter (192). 17. Separator arrangement according to claim 15, characterised by having a filter box (116) comprising a filter-separator arrangement and operable as a unit. 18. Separator device according to claim 17, characterized in that the filter box (116) has a port (120) for fluidly operative connection with the suction unit (32). 19. Separator device according to claim 6, characterized in that mesh structures (129) are arranged on the openings of the mesh cage. 20. Separator device according to claim 8, characterized in that the cover (132) has a median axis (164) or a median plane (166) and the at least one pin-shaped active element (160) is arranged between the intermediate axis ( 164 ) or plane ( 166 ) and the flip hinge ( 158 ) and closer to the flip hinge ( 158 ) than the intermediate axis ( 164 ) or plane ( 166 ) is seated on the cover (132). 21. A vacuum cleaner provided with a separator device (30) according to any one of the preceding claims. 22. A vacuum cleaner according to claim 21, characterized by having a housing (12) in which the separator device (30) is arranged. 23. Vacuum cleaner according to claim 22, characterized in that a removable filter box (116) with the separator device (30) is arranged in the housing (12). 24. The vacuum cleaner according to claim 23, characterized in that the housing (21) has an openable door (112), wherein the filter box (116) is accessible from the door opening (114) via a door opening (114). Take out the casing (12).

Images