CN107405032A - Separator and dust catcher for dust catcher - Google Patents

Abstract

The present invention relates to a kind of separator for being used for dust catcher (10), it is included with the preseparator (122) for accommodating cage (126 '), accommodating cage tool has receiving space (130), wherein, when separator is run, the suction stream for being loaded with foul connected receiving space (130), wherein, it is associated with covering (170) to cage (126 ') is accommodated, covering the functional element (186) that is mounted with least one pin-shaped, when covering (170) closure, the functional element of pin-shaped, which is visited, reaches in receiving space (130), and the functional element of pin-shaped can be applied on the foul in receiving space (130) when covering (170) relative to receiving cage (126 ') motion.

Description

Separator devices 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 with a receiving space, wherein a dirt-laden suction flow is guided through the receiving space during operation of the separator device. space.

The invention also 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.

A pipe extension system for domestic appliances is known from EP 1 365 676 B1.

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

Contents of the invention

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

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

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

As a result, agglomerated dirt, for example, is loosened. This simplifies the emptying of the holding cage, since when the lid is opened the dirt acts on the emptying process 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 a part of the dirt hangs on the pin-shaped active element and thus is protected to a certain extent from the accommodating 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.

It is particularly advantageous if, during a release movement of the cover, at least one pin-shaped engagement element moves in the receiving space when the cover is fastened to the receiving cage. As a result, the loosening movement of the cover that is necessary anyway is used to act on the dirt collected in the receiving space.

In an exemplary embodiment, at least one active element is wedge-shaped and/or multi-forked. In this way, dirt can be effectively acted on.

Advantageously, a connection for the suction flow line is arranged on the cover. A high level of functional integration can thereby 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 at least one pin-shaped engagement 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 protrudes into the receiving space when the cover is closed.

It is advantageous if the receiving cage is configured as a grid cage, in particular as 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. A mesh structure, such as a fabric, is 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 lid can be completely released from the containment cage. This makes it possible to easily empty the holding cage.

In an embodiment, the cover is placed on the holding cage as a flip cover. The lid is opened by folding it up relative to the holding cage. The cover can be permanently attached to the holding cage or it can be detachable. By tilting up, at least one pin-shaped engagement 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 if the cover has a central axis or a central plane and at least one pin-shaped active element is arranged between the central axis and the flip hinge and in particular is arranged closer to the flip hinge than the central axis or the central plane on the lid. As a result, dirt in the receiving space can be acted on over a relatively large spatial area.

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

In a structurally simple embodiment, the cover can be fastened to the holding cage by means of a bayonet arrangement. As a result, the fastening position can be reached in a simple manner, and the cover can be opened in a simple manner from the fastening position.

It is particularly advantageous if at least one pin-shaped active element moves on the path of the rail when the cover is turned. An effective action on dirt collected in the receiving space can thus be achieved. Effective mixing is achieved in particular when a plurality of pin-shaped active 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 effective area can be achieved when the cover is turned.

It is advantageous here if the at least one pin-shaped engagement element is of rigid design in order to achieve effective activation and in particular loosening of 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 in particular multistage and has, for example, a filter device for (fine) dust which is downstream of the pre-separator (as filter and collector for coarse dust). The separator device can thus be designed in a space-saving manner.

For example, the filter device for (fine) dust is designed as a cartridge filter. It can thus achieve effective cleaning with compact spatial dimensions.

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

It is advantageous if the filter cassette has a connection for a fluidly operative connection to the suction unit. This makes it possible to achieve a compact construction and to allow a simple connection to the suction unit when inserting the filter cassette. The connection for the effective connection of fluid into the suction flow with adhering dirt is formed, in particular, on the cover.

A vacuum cleaner according to the invention has a separator device according to the invention.

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

In particular, a removable filter cassette with separator device is arranged in the housing. Dust evacuation can thus 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 reinserting possibilities.

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

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

Due to the adjustability of the distance between the nozzle connection and the first housing side, an upright function for the vacuum cleaner is possible, wherein in particular the attachment of the nozzle side with the suction nozzle and in particular the floor nozzle is possible .

For length adjustability, the tube arrangement can comprise, for example, a plurality of pluggable tubes or, for example, a telescoping device comprising tubes arranged displaceably relative to one another.

The user can thus park the vacuum cleaner upright at any time. The vacuum cleaner occupies very little space requirement.

By positioning the nozzle connection relative to the first housing side, the suction function can be realized in a simple manner from a standing position, wherein the length on the tube arrangement can be adjusted according to the application and user specifications.

Thus, 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 the floor nozzle, and it can be used as a hand-held vacuum cleaner, which is hand-held.

The vacuum cleaner can be effectively used for suctioning under furniture or the like. Due to the extendable distance between the nozzle connection and the housing, it is possible for the housing to remain out of the space under the furniture and only need to sink the suction nozzle with the corresponding pipe area of the pipe arrangement into this space middle.

A wide range of possibilities of use and operation results, wherein a compact construction of the vacuum cleaner is possible.

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

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

It is particularly advantageous if a floor suction nozzle is provided, on which the first fastening device is arranged, wherein a second fastening device for cooperating with the first fastening device is arranged on the first housing side, and wherein the When the first fastening device acts on the second fastening device, the housing is fastened to the floor nozzle and the vacuum cleaner is in the standing position. The standing position can thus be secured. The vacuum cleaner can be brought into the standing position in a space-saving manner at any time.

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

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

In an embodiment, the first fixing means and the second fixing means comprise at least one rib-shaped protrusion and at least one insertion recess for the at least one rib-shaped protrusion. At least one rib-shaped projection is arranged, for example, on the first housing side, and at least one engagement recess is arranged on the floor nozzle. Corresponding elements can be engaged with one another in order to achieve, for example, a positive lock for securing 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 counter element for the at least one magnet element, wherein between the at least one magnet element and the at least one counter element, The magnetic hold works in the standing position. The standing position can thus be locked. In particular, when at least one magnet element and at least one counter element are provided as additional elements, it is possible to prevent the floor nozzle from tipping out relative to the housing when lifting the vacuum cleaner on which the floor nozzle is fastened.

It is particularly advantageous if the center of gravity of the vacuum cleaner is located in the housing and in the standing position of the vacuum cleaner provided with a floor nozzle as suction nozzle, the projection of the center of gravity is along the vertical The vertical direction is located on the floor nozzle with reference to the direction of the center of gravity. As a result, a standing position with high tilt resistance can be achieved.

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

In an embodiment, the tube arrangement has at least one rigid tube and is in particular configured as a telescoping device with at least two rigid tubes. As a result, a length adjustability of the tube arrangement and in particular an adjustability of the distance of the suction nozzle connection relative to the first housing side of the housing can be realized in a simple manner.

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

Advantageously, the second housing side has a housing connection for the introduction of the suction flow, and the pipe arrangement has a connection which is fastened in its position in particular with respect to the housing and which is in particular connected to the second The housing side is spaced apart, and a connecting line is arranged between this connection and the housing connection. Flow diversion can be achieved via connecting pipes. The result is a compact construction of the vacuum cleaner with particularly compact housing dimensions. The connection pipe 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 introduced in order to release, for example, a firmly held suction nozzle.

It is particularly advantageous if the connection piece is configured as a bow-shaped handle for holding the vacuum cleaner. The connecting pipe thus also serves as a holding element. It is then unnecessary to provide an additional bow handle, and the mass of the vacuum cleaner can be kept low. An optimal holding function, for example for vacuuming floors or when used as a hand-held suction device, is also achieved by arranging the connecting pipe above the housing.

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

For the same reason, it is advantageous if the suction unit is positioned closer to the first housing side than to the second housing side, and in particular the separator device and the suction unit are positioned one above the other along the first axis of extension. position. A compact structure is thus obtained.

It is particularly advantageous if the flow path for the suction flow of the suction unit or the exhaust gas of the suction unit emerging from the cleaned suction flow comprises a first region and a second region, the first region being arranged in the pipe arrangement , and having a main flow direction along a 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.

For the same reason it is advantageous if the flow path comprises a third region which is arranged in the housing and has a main flow direction along the first axis of extension opposite to the main flow direction in the second region.

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

It is also advantageous if a diversion 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 construction and optimal use of space. In an embodiment, a porous material, for example a foam material, is arranged in the deflection area for noise reduction.

It is also advantageous if a 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 axis of extension. . As a result, the cleaned exhaust gas of the suction unit can be discharged into the surroundings over a relatively large area.

Advantageously, at least one escape opening is arranged on the housing wall, which is fluidically connected to the third region. Cleaned exhaust gas can thus be discharged efficiently. 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 to which the pipe arrangement is fastened, wherein the third housing side is arranged in particular on the Between the first housing side and the second housing side. This results in an optimal flow guidance with a 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 of the first extension axis. As a result, the exhaust gas of the suction unit can be discharged via a relatively large surface. Exhaust discharge with minimum noise can be realized.

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

In one embodiment, an openable door is arranged on the housing, via which the region in the interior 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 taken out of the housing. The collected dirt can be easily removed.

In an embodiment, the separator device is configured 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 effective cleaning (filtering) of the suction flow on which dirt is attached. 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 by the pre-separator. A filter arrangement for (fine) dust then collects finer dust particles. A compact construction of the vacuum cleaner and especially the housing can be achieved. Dirt emptying can be carried out in a simple manner. Furthermore, filter replacement can be carried out in a simple manner.

In one embodiment, the suction unit comprises a fan motor, to which a flow deflection element, in particular in the form of a hood, is assigned, wherein at least one first flow area and a second flow with an opposite main flow direction are provided on the fan motor area. Effective noise reduction can be achieved by means of such “subflow regions” in the housing, that is to say a reduction in noise emissions can be achieved due to noise reflections in the housing.

Furthermore, it is advantageous to provide an exhaust air filter which, with respect to the flow, is downstream of the fan motor or is arranged between the fan motor and the flow deflection element. For example, fine abrasive particles of the fan motor can be filtered out by such an exhaust air filter.

It is advantageous if an in particular ring-shaped element made of a noise-resistant material having a noise reflectivity of at least 94% is arranged at the transition between the first flow area and the second flow area. 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 and in particular a foam material is arranged in the flow path in order to reflect noise. This results in a reduction in noise emissions.

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

In an embodiment, the length-adjustable tube arrangement comprises at least a first tube, a second tube, a third tube, wherein the first tube is longitudinally displaceable guided in the second tube, and the second tube is longitudinally displaceable Guided in the third pipe, and comprising a first locking device, a second locking device, a third locking device, the first locking device acts between the first pipe and the second pipe, wherein the first locking device can be loosened In the open locked position, the first pipe is movably fastened to the second pipe with respect to the longitudinal direction, and the second locking device acts between the second pipe and the third pipe, wherein the second locking device can be released In the locked position, the second pipe is movably fastened to the third pipe with respect to the longitudinal direction, and the third locking device acts on the first pipe, the second pipe and the third pipe, wherein the third locking device has the ability to loosen An open locked position and an unlocked position, in the locked position, the second pipe is movably fastened to the third pipe with respect to the longitudinal direction, and in the unlocked position, the longitudinal movement of the second pipe relative to the third pipe is released, wherein, With regard to the transition from the locked position into the unlocked position, the third locking device is controlled by the positioning of the first tubular part relative to the second tubular part and/or by the force with which the third locking device acts on the second tubular part.

The length-adjustable pipe arrangement is constructed in a cascade-like fashion. The first pipe is movable relative to the second pipe, wherein the first locking device secures the first pipe on the second pipe in its locked position.

The second tube is movable within the third tube. However, this mobility is only possible when the third locking device releases the mobility. Because the transition from the locked position of the third locking device to the unlocked position is controlled by the positioning of the first pipe or by force, that is, by position or force, when a specific position of the first pipe relative to the second pipe is achieved The transition is somewhat automatic when positioned. No separate operating elements are required.

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

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

The length-adjustable pipe arrangement provides high operating comfort.

It is advantageous if the first locking device and the third locking device are coupled to one another in such a way that, in the unlocked position of the third locking device, the first locking device is in its locking position. As a result, only a movement of one pipe relative to the other can always take place. When the first tube moves relative to the second tube, then the second tube cannot move relative to the third tube. When the second tube moves relative to the third tube, then the first tube cannot move relative to the second tube. This results in simple adjustability and high operating comfort.

Furthermore, it is advantageous if the first locking device and the second locking device are coupled to each other in such a way that, in the locked position of the third locking device, the first locking device and the second locking device can be jointly released from their respective locking The positions are brought into the unlocked position, or are collectively located 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, the first locking device can be acted on in a controlled manner via a corresponding blocking element of the second locking device without canceling the locking of the second tubular part (via the third locking device) relative to the third tubular part. Even when the second locking device is in the unlocked position, the second pipe is fastened to the third pipe via the third locking device in its locked position.

Furthermore, it is 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 part relative to the third pipe part The positioning can be clearly adjusted by means of the second locking device. 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, since the first locking device 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, which is in particular a ball or a roller, which sinks into a first recess of the first tube in the locked position and which for unlocking can be removed from the first sink out of the recess. Especially in the locked position, the sinking element also sinks into a corresponding recess of the second tubular part. This results in a positive fit between the first tubular part and the second tubular part, and the first tubular part is fastened displaceably on the second tubular part with respect to its length. When the respective first sinking element is pushed out at least from the first recess, the positive fit is canceled and a relative movability between the first tubular part and the second tubular part can be achieved.

In particular, the first tubular piece has a plurality of first recesses spaced apart in the longitudinal direction of the first tubular piece. A plurality of different length positions of the first tubular part relative to the second tubular part can thus be adjusted and locked in stages.

It is also advantageous if the first locking device has a first movable blocking element, which in the locked position prevents the first sinking element from sliding out of the first recess and in the unlocked position releases the sinking. The positioning of the first movable blocking element determines whether or not a retraction is possible. This results in a simple locking possibility, which in turn can be canceled in a simple manner.

In particular, a first receptacle for the first sinking element, into which the first sinking element can sink in the unlocked position, is arranged on the first blocking element. This makes it possible to project out of the first recess of the first tubular part in order to cancel the form-fit between the first tubular part and the second tubular part and to achieve length displaceability.

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

It is also advantageous if a restoring device and in particular a spring device is provided which, without external force acting on the first blocking element, seeks to bring the first blocking device into the blocking position for the first sinking element. This results in simple operability. By means of the restoring force of the restoring device, locking can be effected automatically with corresponding positioning of the first recess.

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

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

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

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

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

In addition, for the reasons mentioned above, it is advantageous to provide a reset device and especially a spring device for the second locking device, which, without external force acting on the second blocking element, strives to bring the second blocking device to In the blocking position for the second sinking element.

It is also advantageous if the third locking device has a third sinking element, and the second and third tubular parts have corresponding receptacles, the third sinking element is positioned in the receptacle in the locked position, and the second tube part Fastened to the third pipe. The fastening of the second tubular part to the third tubular part can thus be achieved in a simple manner by form-fitting by means of the third sinking element.

It is particularly advantageous if the first pipe part has a recess assigned to 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 sink out of the receiving part. In this way, the third locking device can be brought in a controlled manner from the locking position into the unlocking position via the positioning of the first pipe relative to the second pipe in a simple manner in order to enable movability between the second pipe and the third pipe. .

Advantageously, the second pipe forms, in the locked position of the third locking means, a stop wall against the third sinking element, which keeps the third sinking element in the receptacles of the second pipe and of the third pipe, and A positive fit of the second tubular part and the third tubular part can thus be achieved in order to prevent a corresponding movability.

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

In an embodiment, a force-loading element is provided, which is especially spring-loaded and which in the locking position of the third locking device secures the second tubular part to the third tubular part in a non-positive manner, wherein, in the second 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 pipe part and the second pipe part, but a force-fitting fastening is provided. The force-loading element provides the necessary force for a force-locked fastening. This fastening can be canceled by a corresponding positioning of the first pipe part relative to the second pipe part. This fastening can also be canceled by direct user intervention on the force-exerting element.

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

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

It is advantageous here if the slider is permanently connected to the second blocking element. As a result, when the third locking device is in the unlocked position, the relative positioning of the second tubular part relative to the third tubular part can be adjusted in a simple manner by actuating the slide.

It is also advantageous if the first blocking element is not permanently connected to the slider and the displacement movement in the direction of displacement is effected by the slider by displacement. It is thus possible to act on the first blocking element via the slide in the locked 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 from the first blocking element and in particular spaced apart. This results in a structurally simple structure. Only one actuating element, ie a slide, needs to be provided in order to be able to achieve a length adjustability over a large length range.

In an embodiment, a first connection for a cleaning tool and in particular a suction nozzle is provided on the pipe arrangement, wherein the first connection is arranged in particular on the first pipe. This results in simple length adjustability.

Furthermore, it can be provided that the second connection for the fluidic connection to the suction unit is arranged on the pipe arrangement, and here in particular on the third pipe. A suction flow can then be guided through the tubing arrangement.

Advantageously, a longitudinally displaceable slide is arranged on the housing of the vacuum cleaner or on the pipe arrangement, via which the first locking device and the second locking device can be acted upon in order to establish the respective unlocked position. This results in simple operability, in which only one actuating element (that is to say a slide) has to be provided in order to be able to achieve a large length range for the length adjustability.

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

Description of drawings

The ensuing description of preferred embodiments in conjunction with the 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;

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

Figure 4 shows a sectional view along line 4-4 according to Figure 3;

Fig. 5 shows a schematic diagram of the cooperation of the floor nozzle and the housing to fix the standing position according to Fig. 1;

FIG. 6 shows an alternative or combinable variant for fixing 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 cassette according to Figure 7;

Figure 9 shows a sectional view along line 9-9 of the filter cassette 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 cover;

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

Figure 13 shows a sectional view along 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 the vacuum cleaner, without the floor nozzle, wherein, compared with the illustration according to Fig. 3, the pipe arrangement is in an extended position;

Figure 15(b) shows a view similar to that in Figure 3, with the floor nozzle, wherein the pipe arrangement is 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;

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

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

Fig. 20 shows an embodiment of a tube arrangement with adjustable length, in an overall position with a minimum length;

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

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

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

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

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

detailed description

The exemplary embodiment of a vacuum cleaner (as an example of a cleaning appliance) shown as a whole in FIGS. 1 to 4 and denoted there by 10 comprises a housing 12 and a pipe 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 a standing position 22 in FIGS. 1 to 4 . In this standing position 22 , a floor nozzle 26 as a suction nozzle is fastened to the pipe arrangement 14 on a nozzle connection 24 . The floor nozzle 26 stands upright on a surface 28 (FIG. 4). The first housing side 16 faces the floor suction nozzle 26 , while the second housing side 18 faces away from the floor suction nozzle 26 .

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

With reference to the flow conduction, the suction unit 32 is downstream of the separator device 30 . The separator device 30 is located on the second housing side 18 . The suction unit 32 is 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 , the fan being 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 has, in particular, a curved shape.

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

The pipe 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 connection 24 on the first pipe piece 46 . The first tubular part 46 is guided displaceably along its length in the second tubular part 48 in a direction of movement 50 parallel to the second extension axis 44 .

The second tubular part 48 is guided displaceably in the third tubular part 52 in the direction of movement 50 .

The tube arrangement 14 is configured as a telescoping tube arrangement in order to achieve length adjustability. This will be explained in more detail below.

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

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

A housing connection 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 pipe provides a fluidly effective connection between the pipe arrangement 14 , here the output side of the pipe arrangement 14 via the connection 54 , and the separator arrangement 30 .

The first pipe part 46 , the second pipe part 48 and the third pipe part 52 of the pipe arrangement 14 are designed as rigid pipe parts which are made, in particular, of a metallic material. These fittings 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 or synthetic material.

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

A free space 64 is formed between a region 62 of the tube arrangement 14 in which the tube arrangement protrudes beyond the second housing side 18 , the second housing side 18 and the connecting tube 58 . When gripping the bow-shaped handle 16 , the user's hand or fingers penetrate through the free space 64 .

A cover 110 , in particular a pivotable cover 110 , is arranged on the connection piece 58 , in particular close to the connection 54 . The cover 110 covers the opening on the connection pipe 58 .

By opening the cover 110 a fluidically effective connection is established between the outside space around the vacuum cleaner 10 and the interior of the connection pipe 58 .

By opening the cover 110 an additional air opening can be provided, which can be used, for example, to release the suction nozzle fastened to the tube arrangement 14 from the surface 28 when the suction nozzle is securely sucked.

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

The nozzle connection 24 is closer to the first housing side 16 than to the second housing side 18 . The positioning of the nozzle connection 24 and thus also of the suction nozzle held on the nozzle connection can be adjusted relative to the second housing side 18; the distance between the suction nozzle connection 24 and the second housing side 18 can be adjusted via the tube The device 14 can be specifically adjusted.

In an embodiment, adjusting the position of the nozzle interface 24 relative to the second housing side 18 is achieved by adjusting the orientation of the first tube 46 relative to the second tube 48 and by adjusting the orientation of the second tube 48 relative to the third tube 52 . This will be explained in more detail below.

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

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

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

Arranged in the housing 66 is one or more support elements 80 , via which the floor suction nozzle 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 or rolling element for the surface 28 .

The floor nozzle 26 has a suction opening 82 . The suction mouth 82 faces the surface 28 when the floor suction nozzle 26 is supported on the surface 28 via the rolling device 78 and via the support element 80 . The surface 28 to be vacuumed can be acted upon with a suction flow via the suction opening, which can be constructed in multiple parts or in one piece.

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

A pipeline 86 is arranged between the suction port 82 and the interface 84 , via which the interface 84 and the suction port 82 are fluidly and effectively connected to each other.

The connection 84 is designed in cooperation with the nozzle connection 24 in such a way that the pipe arrangement 14 can be inserted via the first pipe 46 onto the connection region 88 of the floor suction nozzle 26 . The insertion direction (referenced to the position in which the tube arrangement 14 has been inserted onto the connection region 88 ) is here in particular parallel to the second axis of extension 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 fastening device 94 for cooperating with the first fastening device 92 of the floor suction nozzle 26 .

In an embodiment, the first securing device 92 includes one or more insert recesses 96 . The second fastening device 94 comprises one or more rib-shaped projections 98, wherein the rib-shaped projections are arranged on the second housing side 18 in such a way that the rib-shaped projections In the standing position 22 , it engages in the associated insertion recess 96 and locks the standing position 22 there.

In the standing position 22 , the tubular arrangement 14 is in a basic position in which the tubular arrangement 14 in particular has a minimized length along the second extension axis 44 , and wherein the corresponding position of the tubular arrangement 14 is then locked. This will also be described in detail below. In particular, the rib-shaped projection 98 and the associated insertion recess 96 are designed in such a way that a form-locking occurs by engaging the rib-shaped projection 98 and the insertion recess 96 into one another.

Tilting of the vacuum cleaner 10 in the standing position 22 is prevented by the cooperation of the first fastening device 92 and the second fastening device 74 .

The interaction of the first fastening device 92 and the second fastening device 94 is schematically shown 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 within the housing 12 and, for example, at the level of the suction unit 32 .

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

In the standing position 22 the center of gravity 100 is located above the floor nozzle 26 . This achieves a stable position and secures the standing position 22 .

The first fastening device 92 and the second fastening device 94 are configured to match each other, and in particular a rib-shaped raised protrusion or a plurality of rib-shaped raised protrusions 98 and associated engagement recesses 96 or correspondingly multiplied The two engagement recesses 96 are configured in such a way that an inclination of 10° (in particular at least 10°) does not loosen the fastening, that is to say a corresponding connection between the first fastening device 92 and the second fastening device 94 even in the It can also withstand an inclination of 10° in all directions.

The first fastening device 92 cooperates with the second fastening device 94 only when, as mentioned above, the pipe device 14 is moved in ( FIGS. 1 to 4 ).

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

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

In the standing position 22 , the counter element 102 and the magnet element 104 are brought closer together in such a way that a magnetic retention force that locks the positioning of the floor nozzle 26 relative to the housing 12 acts.

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

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

It is provided in an embodiment that the floor suction nozzle 26 is switchable for operation on hard surfaces or carpet surfaces, wherein one or more support elements 80 are rollers 106 (Fig. 4), also in the case of use on carpeted surfaces the sliding element is 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 a 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 fixedly secured to the separator device 30 . When the separator device 30 is properly positioned in the housing 12, then the door 112 "automatically" closes the door opening.

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

The filter cassette 116 forms a unit which as a whole can be positioned in the housing 12 of the vacuum cleaner 10 and can be removed from the housing 12 of the vacuum cleaner 10 .

Door 112 is secured to filter box 116 .

Filter cassette 116 has an input port 118 that is fluidly operatively connected to housing interface 56 when filter cassette 116 is positioned in housing 12 . A suction flow 118 laden with dirt enters filter cassette 116 through inlet connection 118 .

Furthermore, filter cassette 116 has an outlet connection 120 . A filtered suction flow, which has a significantly lower dirt load than the suction flow entering at the inlet connection 118 , emerges from the outlet connection 120 .

The outlet connection 120 is fluidically connected to the suction unit 32 .

Corresponding fastening means are provided in the housing 12 for fastening (securely positioning) the filter cassette 116 in the housing 12 . Correspondingly, filter cassette 116 has corresponding components.

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

The filter-separator arrangement 30 includes in particular a pre-separator 112 for “coarse dust” and a filter arrangement 124 for dust. A pre-separator 122 is upstream of a filter device 124 for (fine) dust, with reference to the flow guidance for the dirt-laden suction flow.

The pre-separator 122 includes a holding cage 126 which is designed in particular as a mesh cage. The holding cage 126 is made of artificial 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 , for example in the form of a fabric, is arranged on the openings 128 (see FIG. 8 ; the mesh structure is located on all 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 and which are permeable to the filter device 124 with respect to their size. 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 then consists of particles with an average diameter larger than the mesh width, while the fine dust collected by the filter device 124 consists of particles with an average diameter smaller than the mesh width.

The receiving cage 126 has a receiving space 130 . During operation of the vacuum cleaner 10 , a suction flow of accumulated dirt is guided through the receiving space 130 . The mesh of the mesh structure 129 of the mesh cage provides for flow through.

A cover 132 is assigned to the receiving cage 126 . Cover 132 is used to cover receiving cage 126 towards side 134 facing away from outlet connection 120 .

Cover 132 has a port 136 for the suction flow line. Connection 136 is fluidly connected to or forms the inlet connection 118 of filter cassette 116 .

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

On the receiving cage 126 , a ring 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 can be connected in one piece with the receiving cage 126 .

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

For this purpose, filter cassette 116 includes a housing 140 with a wall 142 . A web element 144 is arranged on the inner side of the wall 142 , which protrudes away from the wall 142 into the interior of the housing 140 .

The collar 138 has a circumferential collar 146 , which bears against the web element 144 in the contact region when the receiving cage 126 is positioned on the filter cassette 116 . A “falling 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 is seated on the collar 146 outside of the area of contact with the web element 144 . A free space 150 is formed between the bow 148 and the receiving cage 126 . The bow 148 protrudes away from the side 134 in the direction of the bottom 152 of the receiving cage 126 .

The ring 138 and thus the receiving cage 126 can be turned upside down on the wall 142 via the bow 148 ; when the receiving cage 126 is fastened on the filter box 116 , a region 154 of the wall 142 sinks into the free space 150 . The transition region to the bow 148 bears against the end face 156 of the wall.

Via collar 138 , receiving cage 126 is suspended into housing 140 of filter cassette 116 . The downward mobility is prevented by the flange 146 and the bow 148 . Mobility in the transverse direction (with some play) is prevented by the bow 148 .

The receiving cage 126 can be fastened to the filter box 116 via the ring 138 in a simple and in particular tool-free manner by being hooked onto the housing 140 , and correspondingly can be removed in a simple and tool-free manner.

The contact region of the collar 146 for the web element 144 is in particular arranged diametrically opposite the bow 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 . In particular, the flip hinge 158 is situated opposite the bow 148 . In this region, the collar 138 is reinforced by the bow 148 , and the pivot hinge 158 can thus be integrated into the collar 138 in this region in a simple manner.

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

The pin-shaped active element 160 is arranged on an underside 162 beyond which it protrudes laterally. 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 . In particular, the pin-shaped active element is closer to the pivot hinge 158 than to the center line 164 .

The pin-shaped active element 160 is designed in such a way that when the cover 132 is opened, it is moved through the receiving space 130 by being tilted up (see FIGS. 8 and 10 ) without rubbing 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 active 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.

During operation of the vacuum cleaner 10 , dirt is collected in the receiving space 130 of the pre-separator 122 .

Filter cassette 116 with pre-separator 122 can be removed from housing 12 .

The containment cage 126 with the lid 132 is removable. The containment cage may be releasably fastened to the filter box 116 .

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

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

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

In a further embodiment, the containment cage 126' is provided with a cover 170 (Figs. 11 to 14). The receiving cage 126' is basically constructed identically to the receiving cage 126, wherein the receiving cage 126' has a ring 172.

The cover 170 is configured as a swivel cover, which can be fixed to the receiving cage 126' via a snap lock.

The collar 172 disposed on the containment cage 126' includes a tongue 174. In the exemplary embodiment shown, the four corner tongues are arranged at an angular distance of 90°.

The gusset 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 gusset 174 prevents the cover 170 from being removed upwards 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 illustrated embodiment, four recesses 180 are arranged at an angular distance of 90°.

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

In the locked position of the cover 170 , it is positioned such that the edge region 178 is correspondingly located inside the gusset 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 against the gusset 174 . Further rotation of the cover 170 relative to the collar 172 is thereby prevented. As soon as the gusset 174 rests against the lateral stop 182 , the cover 170 can be turned such that the recess 180 corresponds to the recess 176 of the gusset 174 . Cover 170 can then be lifted.

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

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

The pin-shaped active element can reach the bottom 152' here.

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

The pin-shaped active element 186 can be of multi-pointed design, or can be produced, for example, in the form of a bundle of several spaced-apart or interconnected thin tubes for increasing the surface area.

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

Lid 170 is removed to empty containment cage 126' filled with dirt. For this, the cover 170 is rotated. By turning the pin-shaped active element 186 into the receiving space 130 , dirt is loosened and/or remains attached to the pin-shaped active 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 element 186 or 160 in the cover 132 or 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. By 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 holding cage 126 or 126 ′ is "scrambled" and thus the dirt The agglomeration loosens.

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, the filter device being placed after the pre-separator 122 ( "coarse class"). The filter device is in particular detachably positioned in the housing 140 .

In the exemplary embodiment, corresponding tongue-shaped insertion 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 exemplary 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 design and has filter folds 198 . The filter folds 198 are seated on the base 196 via which the filter device 124 is in turn fastened to the housing, for example via a bayonet connection.

The openings in the filter element 194 surrounded by the filter material of the filter folds 198 and the openings in the bottom 196 correspond to the outlet connections 120 of the filter cassette 116 . For example, the output interface 120 is then formed on the bottom 196 via the filter device 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 there passes the end face 202 of the filter element 194 between the filter folds 198 .

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

A suction flow is provided at the outlet connection 120 , which is much less dust-laden than the suction flow fed into the inlet connection 118 .

When the filter element 194 is rotated in the housing 140 , the insert means 190 act on the filter folds 198 and “flutter” the filter folds, thereby loosening the adhering dust particles. As a result, the dust load on the surrounding environment can be reduced when emptying the filter cassette 116 .

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

If necessary, the filter device 124 snapped into the housing 140 , especially via the bottom 196 (especially in the form of a cartridge filter 192 ), can be removed and replaced or shaken out, wherein the dust can then be removed via the end side. 202 is drained from the filter unit.

The suction unit 32 has a suction nipple 204 . The outlet connection 120 of the filter cassette 116 is fluidically connected to the suction nipple 104 .

An exhaust filter 206 is arranged downstream of the suction unit 32 in the housing 12 of the vacuum cleaner 10 . Exhaust filter 206 is used in particular to filter out motor fines.

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

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

In principle, it is also possible to arrange corresponding flow deflection elements downstream of the exhaust filter 206 .

The flow diverting elements have corresponding walls which delimit a first flow area 210 and a second flow area 212 with an opposite main flow direction. For example, the second flow area 212 surrounds the first flow area 210 annularly.

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

The wall at the transition is in particular annular.

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

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

Housing 12 has a closeable cover 216 in the region of exhaust filter 206 in order to allow access to exhaust filter 214 for exchanging the exhaust 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 gas filter 206 and the second housing. Overall shell height between body sides 18 .

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

A plurality of openings 222 are arranged on the housing wall 38 , the openings being arranged at intervals in a direction parallel to the first extension axis 20 .

The opening 222 is in fluid communication with the exterior space. Exhaust air from the suction unit 32 , which is cleaned air, can escape from the space 218 into the exterior space via the opening 222 .

On the openings 222 , especially inside the housing, there is respectively an open porous structure 224 , for example in the form of a foam element.

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

During operation of the vacuum cleaner 10 , the flow path 226 on the vacuum cleaner 10 for the suction flow includes 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 axis of extension 44 .

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

The deflection of the flow from the first region 228 to the second region 230 takes place at the connection piece 58 .

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

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

The third area 232 is formed by the space 218 . The cleaned air exhaust of the suction unit 32 flows in the third region 232 . In the third region 232 the main flow direction is at least approximately parallel to the first axis of extension 20 and is either 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 turning area for turning the flow from the second area 230 to the third area 232 .

The flow paths are shown in FIG. 2 .

The distance traveled through the flow path 236 is approximately three times the height of the housing 12 in dimension, that is, the suction flow with dirt attached first flows through the second region 228 and then flows through the second region 230, in which Clean, and then cleaner exhaust gas flows through the third region 232 and out into the ambient environment.

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

A corresponding configuration of the flow deflection element 208 with the transition 214 likewise provides low noise emissions.

The air flow is moderately efficiently deflected by the flow deflection element 208 , in particular to reduce noise emissions.

The tubing arrangement 14 is telescoping (Figs. 15 to 25). For this purpose, the pipe arrangement 14 comprises a third pipe 52 which is fixedly mounted on the housing wall 38 . The third tube 52 has an extent along the second axis of extension 44 . The third pipe piece 52 is in particular of rigid design.

The second tubular part 48 is arranged in the third tubular part and is guided longitudinally displaceably in the direction of the second extension axis 44 . The second pipe piece 48 is also rigidly constructed. It is in particular configured in the form of a cylinder. Correspondingly, the inner space of the third pipe 52 is (hollow) cylindrical.

The first tubular part 46 is arranged longitudinally displaceable on the second extension axis 44 in the second tubular part 48 . The first tubular part 46 is designed cylindrically. The second pipe piece 48 accordingly has a (hollow) cylindrical interior.

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

The corresponding relative positioning of the second tube piece 48 with respect to the third tube piece 52 can be specifically adjusted. Accordingly, the positioning of the first tubular member 46 relative to the second tubular member 48 (and thus also relative to the third tubular member 52 ) can be specifically 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 locked position the first pipe 46 is fastened on the second pipe. On the pipe fitting 48. The locked position is releasable.

Furthermore, a second locking device 242 is assigned to the pipe arrangement 14 , which acts between the third pipe 52 and the second pipe 48 . The second locking device 242 secures the second pipe 48 to the third pipe 52 in the locked position. This locking 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 , it fastens the second tubular part 48 to the third tubular part 52 . The locked position can be released to the unlocked position. In the unlocked position of the third locking device 244 , the movability of the second pipe part relative to the third pipe part 52 is released, but wherein a specific positioning of the second pipe part 48 relative to the third pipe part 52 is possible via 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 other embodiments, force effects determine the transition.

The first locking device 240 comprises a first sinking element 246 . The first sinking element 246 is, for example, a ball or a roller.

First recesses 248 are arranged at intervals in the direction of the second extension axis 44 on the first pipe piece 46 , 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 248 a closest to the nozzle interface 24 here defines the positioning of the first tube 46 relative to the housing 12 and thus defines the positioning of the nozzle interface 24 for the standing position 22 . When the first sinking element 246 sinks into the first recess 248a and the first locking device 240 is locked, the positioning of the nozzle interface 24 relative to the first housing side 16 is achieved, wherein the first fixing device 92 and the second fixing device 94 may cooperate with each other in order to fix 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 first movable blocking element 250 has an abutment region 252 for the first sinking element 246 . When this abutment region 252 is located above the first sinking element 246 , the first sinking element 246 is thus 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 contact region 252 .

When the first accommodating portion 254 is located above the first sinking element 246 , the first sinking element 246 can sink out from the corresponding first concave portion 248 and sink into the first accommodating portion 254 .

A through recess 258 is formed on the second pipe member 48 . When the second sinking element 246 is located in the recess 258 and in the corresponding first recess 248 then longitudinal displaceability between the first tubular part 46 and the second tubular part 48 is prevented. When the first receiving portion 254 is located above the recess 258 by correspondingly positioning the first blocking member 250, then the first sinking member 246 can completely sink out of the first receiving portion 254, and correspondingly release the second pipe member 48 relative to the first receiving portion 258. Mobility of the tube 46 .

The first blocking element 250 is arranged on the guide 260 and is guided longitudinally displaceably 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 part 260 . If the first blocking element 250 is moved in such a way that the first receptacle 254 is located above the recess 258 , then the force of the reset device 262 must be overcome. When no external force acts on the first blocking element 250 , the first blocking element resets, and the abutment region 252 covers the recess 258 and holds the first sinking element 246 in the first receptacle 254 and thereby This in turn prevents the longitudinal displaceability of the first tubular member 46 relative to the second tubular member 48 .

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

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

In the locking position of the second locking device 242 , the second sinking element 246 sinks into the corresponding second recess 266 and recess 268 , and the contact region 272 lies above the second sinking element 264 and secures this position.

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

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

Assigned to the second blocking element 270 is a restoring device 278 , 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 over the second sinking element 264 , the force of the restoring device 278 must be overcome. Corresponding external forces are required for this. In the absence of an external force, the reset device 278 provides a return movement of the second blocking element 270 so as to bring the abutment area 272 above the second sinking element 264 and press the second sinking element to the corresponding first sinking element. In the two recesses 266 .

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

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

The slide 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 force-transmittingly connected to the slider 280 . The connection is for example firm.

In an exemplary embodiment, the second blocking element 270 is arranged approximately at the height of the area above the fan motor 34 .

Corresponding guides for the longitudinal displaceability of the slider 280 are provided on the housing wall 38 .

In principle, it is also possible for the slider 280 to be arranged longitudinally displaceable on the tube arrangement 14 .

The first blocking element 250 is coupled to the slider 280, but is not permanently connected thereto.

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 it is possible for the second blocking element 270 to 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 tube 48 does not move relative to the third tube 52 .

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

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

A receptacle 286 for the third sinking element 284 is formed on the third tubular piece 52 . Correspondingly, a receiving portion 288 for the third sinking element 284 is formed on the second pipe piece 48 . When the third sinking element 284 is placed in the receptacle 286 and the receptacle 288, a form-locking connection is established between the third pipe part 52 and the second pipe part 48, and thus the second pipe part 46 is connected to it. It is movably fastened to the third pipe member 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 locked position (in this locked position, the third sinking element 284 is placed in the receptacle 286 and the receiving portion 288 ), the second tube 48 cannot move in the third tube 52 either.

The receptacle 288 in the second tubular part 48 is open towards the first tubular part 246 . The wall 290 of the first tubular part prevents the movability and thus the ability of the third sinking element 284 to sink out of the receptacles 286 and 288 .

Adjacent to an end 292 remote from the nozzle connection 24 , the first tube piece 46 has a recess 294 for the third sinking element 284 (see eg FIG. 20 or FIG. 25 ). This recess 294 is arranged on a different side than the first recess 248 . For example, the recess 294 and the first recess 248 are arranged diametrically opposite each other.

The first sinking element 284 is arranged, for example, diametrically opposite the second sinking element 264 (wherein it can be positioned at different heights with respect to the second extension axis 44 ).

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

When the first pipe member 46 is in a specific position relative to the second pipe member 48 , that is to say in the position where the recess 294 is opposite to the third sinker member 284 , the third sinker member 284 can be accommodated from the third pipe member 52 . Part 286 sinks out. As a result, the form-fit between the second tubular part 48 and the third tubular part 52 is canceled and an unlocking position is reached in which the third locking device 244 releases the locking of the third tubular part 52 in the second tubular part 48 . In this unlocked position of the third locking device 244 only the second locking device 242 is active with regard to the securing of the position of the second pipe 48 relative to the third pipe 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 sinking element 284, and the third sinks in When element 284 sinks into recess 294 . In this positioning, the maximum telescopic position of the first tubular part 46 relative to the second tubular part 48 is reached.

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

The relative height spacing between the first sinker element 246 and the third sinker 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 irrespectively remains constant; when the third sinking element 284 sinks out of the receiving portion 286 of the third tube 52 and sinks into the recess 294, it is synchronized with the second tube 48 by the movement of the second tube 48 relative to the third tube 52 . The described synchronization is achieved because the guide 260 is firmly arranged on the second pipe 48 and the third sinking element 284 is fixed relative to the second pipe 48 in a direction parallel to the second extension axis 44 .

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

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

The force application (instead of a form-fitting connection via the sinking element) provides a force-locking coupling between the third pipe part 52 and the second pipe part 48 for correspondingly securing the relative positioning. The unlocked position is reached when, for example by correspondingly positioning the first tube 46 , the force-locking coupling is no longer present due to 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 pipe 48 and the first pipe 46 are locked together by the first locking device 240), the combination of the second pipe 48 and the first pipe 46 as a whole is relatively The third pipe 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 at the end-side end 282 and thus the slider 280 is released. Slider 280 no longer acts on first locking device 240 .

The tubing arrangement 14 works with the locking devices 240, 242, 244 as follows:

In the standing position 22 of the vacuum cleaner 10 (cf. FIGS. 1 to 4 ), the second pipe part 48 is completely sunk into the third pipe part 52 throughout its movement path. The first pipe part 46 is completely sunk into the second pipe part 48 within its movement path. The positioning of the second tubular member 48 relative to the third tubular member 52 is secured by the second locking device 242 and the third locking device 244 .

The nozzle connection 24 protrudes beyond the first housing side 16 to such an extent that the floor nozzle 76 can be fixed 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 relative to the standing position 22 for suction operation.

To this end, the first tube 46 is first moved out of the second tube 48 .

For this, the slide 280 is actuated and moved downwards, that is to say in the direction of the nozzle interface 24 . In this case, the slide moves the second blocking element 270 and, via the stop at the end-side end 282 , also the first blocking element 250 . When the first receptacle 254 is located above the recess 258, the first sinking element 246 sinks out, wherein then, the form-locking between the first pipe part 46 and the second pipe part 48 is canceled, and the first pipe part 46 is relative to the first pipe part 46. Two tubes 48 are movable.

The corresponding displacement positioning is locked by ending the force acting on the slider 280 without corresponding sinking of the sinking element 246 into the recess 248 and according to the desired longitudinal positioning and holding via the contact region 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 device 244 , however, the second tubular part 48 remains fastened to the third tubular part 52 as long as the third sinking element 248 does not sink into the recess 294 .

15(a), 15(b) and 16 show different positioning of the first pipe 46 relative to the second pipe 48, wherein the second pipe 48 is fastened to the third pipe 52 via the third locking device 244. superior.

The positioning indicated in Figures 15(a), 15(b) of the first tubular member 46 relative to the second tubular member 48 is a positioning with a 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 floor suction operation for very short operators.

The positioning of the nozzle connection 24 and thus also the suction nozzle relative to the first housing side 16 is thus adjustable over a predetermined distance.

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

The position of the pipe arrangement 14 corresponding to the position according to FIG. 16 is shown in FIG. 21 .

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

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

When the second pipe member 48 moves back into the third pipe member 52 within its corresponding stroke by locking the second locking device 242 from the pulled-out position, then when the first blocking element 250 stops against the second blocking element The final position is reached when the end-side end 282 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 be sunk into the receptacle 286 . As a result, the second pipe part 48 is again fastened to the third pipe part 52 and the first pipe part 46 can be moved in the second pipe part 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, namely the slider 280 , needs to be provided here. This results in high operating comfort.

The positioning of the slider 280 determines from the standing position 22 whether the second locking device 242 (and the first locking device 240 ) is in the locked position. When the first locking device 240 is not in the locked position, the first tube 46 is movable relative to the second tube 48 . The movability of the second pipe part 48 relative to the third pipe part 52 is predetermined by the positioning of the first pipe part 46 relative to the second pipe part 48 without having to provide additional operating elements.

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

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

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

The vacuum cleaner can be used as a floor vacuum cleaner in that the floor nozzle 26 is moved out of the standing position 22 by moving the nozzle connection 24 .

The best positioning for the user can be adjusted. A user can hold the vacuum cleaner 10 on the bow-shaped handle 60 of the connection tube 58 and perform a suctioning 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 is not supported, for example, on the ground. The floor suction nozzle 26 is then replaced by a corresponding suction nozzle. The desired length can be adjusted in a simple manner via the pipe arrangement 14 by means of the operating slide 280 .

An "upright extractor" with upright function is possible, but in which the vacuum cleaner can also be used as a hand-held extractor.

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. Depending on the user's wishes, the vacuum cleaner can be parked in a space-saving manner in the standing position 22 due to the upright function, without requiring a wall or the like to lean on.

The compact construction makes it possible, for example, to perform suction under furniture.

A reduction in noise emissions is achieved with low flow losses via the flow path 226 and the flow regions 210 , 212 , wherein the means for noise reduction do not significantly impair the performance of the vacuum cleaner 10 with respect to its suction function.

Evacuation of dirt can be carried out in a simple manner by means of one or more pin-shaped active elements 116 , 186 on the pre-separator 122 .

List of reference signs

10 vacuum cleaners

12 housing

14 pipe fittings

16 First housing side

18 Second housing side

20 First axis of extension

22 standing position

24 nozzle interface

26 floor nozzle

28 surface

30 separator unit

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 fitting

48 Second fitting

50 direction of movement

52 Third fitting

54 interface

56 Shell interface

58 Connecting fittings

60 bow handle

62 areas

64 free space

66 housing

68 front side

70 rear side

72a on the side of the side

72b on the side of the side

74 upper side

76 width

78 rolling device

80 placement components

82 suction port

84 ports

86 Ventilation Department

88 interface area

Area above 90

92 First fixture

94 Second fixture

96 Fitting recess

98 ribbed raised raised

100 center of gravity

102 Mating elements

104 magnet element

106 roller

108 switching mechanism

110 cover

112 doors

114 door opening

116 filter box

118 input interface

120 output interface

122 Pre-separator

124 Filter unit for dust

126 holding cage

126’ holding cage

128 openings

129 mesh structure

130 storage space

132 cover

134 side

136 interface

138 rings

140 housing

142 wall

144 tab components

146 flange

148 Arch

150 free space

152 Bottom

152’ bottom

154 areas

156 end side

158 flip hinge

160 pin-shaped active element

162 Lower side

164 middle line

166 Median plane

168a First side

168b second side

170 cover

172 ring

174 angle tongue plate

176 Recess

178 Edge area

180 concave

182 Lateral stop

184 Lower side

186 pin-shaped active element

188 interface

190 embedded components

192 cartridge filter

194 filter element

196 Bottom

198 Filter pleats

200 suction flow

202 end side

204 Suction socket

206 exhaust filter

208 Flow diversion elements

210 First flow area

212 Second Flow Area

214 Transition Department

216 cover

218 space

220 spaces

222 port opening

224 open porous structure

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 sinking element

248 First recess

248a First recess

248b First recess

250 First stop element

252 snapping area

254 First Containment Department

256 Beveled walls

258 Concave

260 Guidance Department

262 reset device

264 Second sinking element

266 Second recess

268 concave

270 Second blocking element

272 snapping area

274 The second container

276 Guidance Department

278 Reset device

280 sliders

282 end side end

284 Third sinking element

286 Housing

288 Housing

290 wall

292 ends

294 Concave

296 Force Loading Elements

Claims (23)

1. A separator device for a vacuum cleaner (10), comprising a pre-separator (122) with a receiving cage (126; 126') having a receiving space (130), wherein , during operation of the separator device, a dirt-laden suction flow is guided 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, and when the cover (132; 170) is closed, the pin-shaped active element protrudes into the receiving space (130), and The pin-shaped engagement element can act on dirt in the receiving space (130) when the cover (132; 170) is moved relative to the receiving cage (126; 126'). 2. Separator arrangement according to claim 1, characterized in that the at least one pin-shaped active element (160; 186) is mounted as a flag on the cover (132; 170). 3. Separator device according to claim 1 or 2, characterized in that in the case of a loosening movement of the cover (132; 170), when the cover is fixed in the holding cage (126; 126' ) the at least one pin-shaped active element (160; 186) moves in the receiving space (130). 4 . The separator device as claimed in claim 1 , characterized in that the at least one pin-shaped engagement element ( 160 ; 186 ) is wedge-shaped and/or multi-forked. 5. Separator device according to any one of the preceding claims, characterized in that a connection (136; 188) for a suction flow line is arranged on the cover (132; 170). 6. Separator device according to any one of the preceding claims, characterized in that the cover (132; 170) has an underside (162; 184) which is closed when the cover (132; 170) Pointing toward the receiving space ( 130 ), the at least one pin-shaped active element ( 160 ; 186 ) is oriented on the underside ( 162 ; 184 ) transversely to the underside. 7. Separator device according to any one of the preceding claims, characterized in that the receiving cage (126; 126') is configured as a grid cage and in particular a mesh structure (129) is arranged on the On the opening of the mesh cage. 8. Separator arrangement according to any one of the preceding claims, characterized in that the cover (132; 170) is completely releasable from the containment cage (126; 126'). 9 . The separator device as claimed in claim 1 , characterized in that the cover ( 132 ) is mounted on the holding cage ( 126 ) as a flip cover. 10 . 10. The separator device according to claim 9, characterized in that the cover (132) has a central axis (164) or a central plane (166), and the at least one pin-shaped active element (160) is arranged Between said middle axis (164) or middle plane (166) and flip hinge (158), and in particular closer to said flip hinge (158) than said middle axis (164) or middle plane (166) ) is placed on the cover (132). 11. The separator device according to any one of the preceding claims, characterized in that the cover (170) is configured as a swivel cover. 12. Separator device according to claim 11, characterized in that the cover (170) is fixable on the containing cage (126') via bayonet means. 13. Separator device according to claim 11 or 12, characterized in that the at least one pin-shaped active element (186) moves on the track of the rail when the cover (170) is turned. 14. Separator device according to any one of claims 11 to 13, characterized by at least two opposing pin-shaped active elements (186). 15. The separator device as claimed in claim 1, characterized in that the at least one pin-shaped active element (160; 186) is rigidly constructed. 16. The separator device according to any one of the preceding claims, characterized in that it has a configuration as a filter-separator device, wherein the filter device (124) for dust is placed in the pre-separator (122) Rear. 17. The separator device as claimed in claim 16, characterized in that the filter device (124) for dust is designed as a cartridge filter (192). 18. A separator device according to claim 16 or 17, characterized by a filter cassette (116) comprising a filter-separator device and operable as a unit. 19. Separator arrangement according to claim 18, characterized in that the filter cassette (116) has a connection (120) for a fluidly operative connection to a suction unit (32). 20. A vacuum cleaner provided with a separator device (30) according to any one of the preceding claims. 21. Vacuum cleaner according to claim 20, characterized by a housing (12) in which the separator device (30) is arranged. 22. The vacuum cleaner as claimed in claim 21, characterized in that a removable filter cassette (116) with the separator device (30) is arranged in the housing (12). 23. The vacuum cleaner according to claim 21 or 22, characterized in that the housing (21) has an openable door (112), wherein, through the door opening (114), the filter box (116) Can be removed from said housing (12).