EP3264962B1 - Separation device for a vacuum cleaner and vacuum cleaner - Google Patents

Description

The invention relates to a separator device for a vacuum cleaner, comprising a pre-separator with a receiving basket, which has a receiving space, wherein when the separating device is in operation, a dirt-laden suction flow is carried through the receiving space and the receiving basket is assigned a cover on which at least one pin-shaped active element is seated which protrudes into the receiving space when the lid is closed, and which can act on dirt in the receiving space when the lid is moved relative to the receiving basket.

The invention also relates to a vacuum cleaner.

Vacuum cleaners are for example from the WO 2013/080508 A1 , the EP 0 708 613 B1 , the U.S. 4,610,048 or the EP 1 228 732 B1 known.

From the EP 1 365 676 B1 an extension tube assembly for a household appliance is known.

From the EP 1 192 891 A1 a telescopic dust collection tube for a vacuum cleaner is known.

The US 2014/0215751 A1 discloses a vacuum cleaner with a separator module. The separator module comprises at least one separator chamber with an air inlet, which is in connection with a suction nozzle, with an air outlet, and with at least one collecting chamber, which receives dust that is separated by the at least one separator chamber.

The invention is based on the object of providing a separator device of the type mentioned at the outset which can be emptied in a simple manner.

In the separator device of the type mentioned at the outset, this object is achieved according to the invention in that a connection for a suction flow line is arranged on the cover.

When the vacuum cleaner is in operation, dirt collects in the receiving space of the receiving basket. When the cover is opened, the at least one pin-shaped active element moves in the opening Acquisition space and the pin-shaped action element can act on accumulated dirt and stir it up, so to speak.

This loosens dirt that has baked on, for example. Emptying the receiving basket is simplified because when the lid is opened for an emptying process, the dirt is acted on and it is loosened.

It is also possible, in particular if the at least one pin-shaped active element is designed accordingly with a correspondingly large surface, that dirt or a part of the dirt adheres to the pin-shaped active element and is thus, as it were, pulled out of the receiving basket.

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

It is particularly advantageous if, in the event of a release movement of the cover when it is fixed on the receiving basket, the at least one pin-shaped acting element is moved into the receiving space. As a result, a loosening movement of the cover, which is necessary anyway, is used to act on accumulated dirt in the receiving space.

In one embodiment, the at least one active element is wedge-shaped and / or multi-pronged. This allows the dirt to act effectively.

A connection for a suction flow line is arranged on the cover. This enables a high level of functional integration to be achieved. A connection, which is necessary anyway, is integrated into the cover.

It is also favorable if the cover has an underside which, when the cover is closed, faces the receiving space, and the at least one pin-shaped action element is oriented on the underside transversely to this. As a result, a pin-shaped active element can be implemented in a simple manner, which is fixed to the cover and protrudes into the receiving space when the cover is closed.

It is favorable if the receiving basket is designed as a lattice basket, in particular with a lattice structure of a bottom wall and a side wall arranged on the bottom wall. This allows a (dirt-laden) suction flow to be passed through the pre-separator in a simple manner. In particular, a mesh structure such as a woven fabric is arranged at the openings of the mesh basket (on the bottom wall and side wall). A mesh size of this mesh structure then determines which particle sizes are collected in the receiving basket and which are let through.

In one embodiment, the cover is completely detachable from the receiving basket. This makes it easy to empty the receiving basket.

In one embodiment, the lid sits as a hinged lid on the receiving basket. The lid is opened by opening it opposite the receiving basket. The lid can sit permanently on the receiving basket or it can be detachable. As a result of the opening, the at least one pin-shaped action element moves in the receiving space and a corresponding pivoting movement of the cover effects an action on the accumulated dirt.

It is advantageous if the cover has a central axis or central plane and the at least one pin-shaped active element is arranged between the central axis and a hinged joint and in particular sits closer to the hinged joint than to the central axis or central plane on the cover.

This allows the dirt in the receiving space to act in a relatively large area.

In an alternative or combinatorial embodiment, the cover is designed as a rotating cover. In principle, it is possible for the cover to be designed as a pure rotary cover or as a rotary and hinged cover. For example, when designed as a rotating / hinged lid, a rotary movement is initially required to open the lid, the lid then being able to be opened by opening it and, for example, the lid being coupled to a hinged joint by the rotary movement.

In a structurally simple embodiment, the cover can be fixed to the receiving basket via a bayonet device. A fixation position can thereby be achieved in a simple manner and the cover can be opened in a simple manner starting from the fixation position.

It is particularly advantageous if the at least one pin-shaped active element moves on an orbital path when the cover is rotated. In this way, an effective action can be achieved on accumulated dirt in the receiving space. An effective mixing results, in particular if a plurality of pin-shaped active elements are provided.

In one embodiment, at least two opposing pin-shaped action elements are provided. These are spaced from one another. In this way, a large area of action can be achieved when the cover is rotated.

It is advantageous if the at least one pin-shaped action element is rigid in order to achieve effective action and, in particular, removal of dirt that has accumulated in the receiving space.

In one embodiment, the separator device is designed as a filter-separator device which has both a separator function for coarse dirt and a filter function for fine dirt. In particular, the separator device is then designed in several stages and has, for example, a filter device for (fine) dust, which is arranged downstream of the pre-separator (as a filter and collector for coarse dust). The separator device can thereby be designed to be space-saving.

For example, the filter device for (fine) dust is designed as a cartridge filter. Effective cleaning can thus be achieved with compact room dimensions.

In one embodiment, a filter box is provided which includes the filter separator device and can be handled as a unit. For example, the filter box can then be removed as a unit from a vacuum cleaner in order to carry out an emptying process. The receiving basket is in particular detachably - or permanently - arranged on the filter box. It can be taken from this. After loosening the lid, the receiving basket can be emptied.

It is advantageous if the filter box has a connection for a fluid-effective connection to a suction unit. This makes it possible to achieve a compact design and a connection to the suction unit when the filter box is inserted is possible in a simple manner. A connection for the fluid-effective coupling of a dirt-laden suction flow is formed in particular on the cover.

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

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

In particular, a removable filter box with the separator device is arranged in the housing. In this way, dust can be emptied in a simple manner. Furthermore, a filter exchange can be carried out in a simple manner.

In particular, the housing then comprises an openable door, the filter box being removable from the housing via a door opening. This results in a simple possibility of emptying and also the possibility of reinstallation.

In one embodiment, the vacuum cleaner comprises a housing, which extends between a first housing side and a second housing side in a first axis of extent, comprises a suction unit for generating a suction flow, which is arranged in the housing, the separator device, which is arranged in the housing, and a pipe device which is arranged on or in the housing and extends in a second axis of extent at least approximately parallel to the first axis of extent, a nozzle connection for a suction nozzle being arranged on the pipe device and the nozzle connection closer to the first housing side than to the second Housing side lies.

The pipe device is designed to be adjustable in length along the second axis of extent and a distance between the nozzle connection and the first housing side can be set in a determinable manner.

As the distance between the nozzle connection and the first housing side can be adjusted, a stand function for the vacuum cleaner can be implemented, in which, in particular, the nozzle side can be fixed with a suction nozzle and, in particular, a floor nozzle.

To adjust the length, the tube device can for example comprise a plurality of plug-in tubes or, for example, a telescopic device of tubes arranged displaceably from one another.

As a result, an operator can park the vacuum cleaner upright at any time. The vacuum cleaner takes up little space.

By positioning the nozzle connection relative to the first side of the housing, a suction function can be achieved in a simple manner starting from the standing position, the length of the tube device being adjustable depending on the application and user specifications.

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

The vacuum cleaner can be effectively used for vacuuming under furniture or the like. As the distance between the nozzle connection and the housing can be extended, the housing can remain outside a room under a piece of furniture and only a suction nozzle with the corresponding pipe area of the pipe device has to be immersed in this room.

There are extensive application possibilities and operating options, whereby a compact construction of the vacuum cleaner can be realized.

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

In particular, when the suction nozzle is fixed to the nozzle connection, a distance between the suction nozzle and the first side of the housing can be determined. This results in variable usage options. A standing position can be fixed.

It is particularly advantageous if a floor nozzle is provided on which a first fixing device is arranged, with the first On the housing side, a second fixing device is arranged for cooperation with the first fixing device, and with the first fixing device engaging the second fixing device, the housing is fixed on the floor nozzle and the vacuum cleaner is in a standing position. The standing position can thereby be secured. The vacuum cleaner can be brought into an upright position at any time to save space.

Starting from this standing position, a suction position can be achieved in a simple manner by lengthening the pipe device.

In particular, in the standing position, the second axis of extension is at least approximately perpendicular (perpendicular or at an acute angle of at most 20 ° to the perpendicular) to a base on which the bottom nozzle is set up. The standing position can thus be achieved with good tilting stability.

In one embodiment, the first fixing device and the second fixing device comprise at least one rib and at least one engagement recess for the at least one rib. The at least one rib is arranged, for example, on the first housing side and the at least one engagement recess on the floor nozzle. The corresponding elements can engage in one another in order, for example, to achieve a form fit that secures the standing position.

It is alternatively or additionally possible that the first fixing device and the second fixing device comprise at least one magnetic element and at least one counter-element for the at least one magnetic element, with a magnetic holding force acting between the at least one magnetic element and the at least one counter-element in the standing position. This allows the standing position to be secured. In particular, if the at least one magnetic element and the at least one counter-element are provided as additional elements, it can start when the vacuum cleaner is lifted which, for example, a floor nozzle is fixed, prevent the floor nozzle from folding down in relation to the housing.

It is particularly advantageous if a center of mass of the vacuum cleaner lies in the housing and, in a standing position of the vacuum cleaner, which is provided with a floor nozzle as a suction nozzle, a projection of the center of mass lies in a vertical direction based on the direction of gravity on the floor nozzle when the Vacuum cleaner is set up with the floor nozzle on a horizontal floor. This enables a standing position to be achieved with a high degree of security against tipping over.

A compact structure results when the pipe device is positioned on an outside of the housing. Furthermore, a long flow path can thereby be achieved without any significant performance restrictions, whereby an effective reduction in noise emissions can be achieved.

In one embodiment, the pipe device has at least one rigid pipe and is designed in particular as a telescopic device with at least two rigid pipes. This makes it possible to easily adjust the length of the pipe device and in particular adjust the distance between the nozzle connection and the first housing side of the housing.

It is advantageous if the pipe device protrudes beyond the second housing side. As a result, the vacuum cleaner can be made compact with a relatively small housing. A flow path can be achieved which is relatively long. This in turn enables an effective noise reduction to be achieved.

It is favorable if the second housing side has a housing connection for coupling in a suction flow and the pipe device has a connection which, in particular, is in its position with respect to the housing and which is in particular spaced apart from the second housing side, and wherein a connecting tube is arranged between the connection and the housing connection. A flow deflection can be achieved via the connecting pipe. The result is a compact construction of the vacuum cleaner with, in particular, compact housing dimensions. The connecting tube can also be used as a bow handle.

In one embodiment, an openable cover is arranged on the connecting pipe. In this way, false air coupling can be achieved in order, for example, to be able to loosen a suction nozzle that has been sucked into place.

It is particularly advantageous if the connecting pipe is designed as a bow-type handle for holding the vacuum cleaner. As a result, the connecting pipe is also used as a holding element. There is then no need to provide an additional bow handle and the mass of the vacuum cleaner can be kept low. The arrangement of the connecting pipe above the housing also results in an optimized holding function, for example for vacuuming a floor or when using it as a hand-held vacuum cleaner.

It is also advantageous if the separator device is positioned closer to the second housing side than to the first housing side and is in particular 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 arranged one above the other along the first axis of extension. This results in a compact structure.

It is particularly advantageous if a flow path for a suction flow or exhaust air of the suction unit, which arises from a cleaned suction flow, comprises a first area which is located in the The pipe device is arranged with a main flow direction along the second axis of extension, and comprises a second region which is arranged in the housing with a main flow direction along the first extension axis counter to the main flow direction in the first region. This results in a long flow path without any significant reduction in efficiency or suction power, which results in an effective noise reduction.

For the same reason, it is favorable if the flow path comprises a third area which is arranged in the housing with a main flow direction along the first axis of extension opposite to the main flow direction in the second area.

It is advantageous if a deflection area for the flow between the first area and the second area is formed by a connecting pipe between the pipe device and the housing and in particular the second housing side. This results in a compact structure. The connecting tube can also be used as a bow handle, for example.

It is also favorable if a deflection area for the flow is formed between the second area and the third area in the housing, in particular between the suction unit and the first housing side. This results in a compact structure with optimized use of space. In one embodiment, a porous material such as foam material for noise reduction is arranged in the deflection area.

It is also advantageous if the third area is formed in the housing between a housing wall and the separator device and the suction unit, the separator device and the suction unit in particular being arranged one above the other with respect to the first axis of extent. As a result, cleaned exhaust air from the suction unit can be released into the environment over a relatively large area.

At least one outlet opening, which is fluidly connected to the third area, is expediently arranged on the housing wall. This means that effectively cleaned exhaust air can be emitted. The delivery can be carried out with reduced noise.

It is favorable if at least one outlet opening for exhaust air of the suction unit is arranged on the housing on a third housing side on which the pipe device is fixed, the third housing side being arranged in particular between the first housing side and the second housing side. This results in an optimized flow guidance with a compact construction of the housing.

In particular, a plurality of outlet openings is provided, outlet openings being arranged on the housing in a direction along the first axis of extent. This allows exhaust air from the suction unit to be emitted over a relatively large area. A noise-minimized exhaust air emission can be achieved.

For noise reduction, it is also advantageous if an open-pore structure, such as a foam element, through which exhaust air must flow, is arranged at the at least one outlet opening.

In one embodiment, an openable door is arranged on the housing, via which an area in the interior of the housing on which the separator device is arranged is accessible. The door can be separate from the separator device or be arranged on it. In the latter case, the door is removed (and opened) when the separator device is removed from the housing. Accumulated dirt can be easily removed.

In one embodiment, the separator device is designed as a filter-separator device, which in particular has a pre-separator (for coarse dust) and a filter device for dust (fine dust), wherein the filter device for dust is designed in particular as a cartridge filter. This results in an effective cleaning (filtering) of a dirt-laden suction flow. The pre-separator collects, for example, dust particles larger than 200 µm, larger 150 µm or larger 100 µm, depending on the design of the pre-separator. The filter device for (fine) dust then collects finer dust particles. A compact construction of the vacuum cleaner and in particular of the housing can be realized. Dirt can be emptied in a simple manner. Furthermore, a filter exchange can be carried out in a simple manner.

In one embodiment, the suction unit comprises a fan motor to which a flow deflecting element, in particular in the form of a hood, is assigned, with at least a first flow area and a second flow area with opposite main flow directions being provided on the fan motor. An effective noise reduction can be achieved through such an “underflow area” in the housing, that is to say a reduction in the sound emissions due to sound reflection in the housing can be achieved.

It is also advantageous if an exhaust air filter is provided, which is arranged downstream of the fan motor with respect to a flow or is arranged between the fan motor and the flow deflecting element. Such an exhaust air filter can be used, for example, to filter out abrasion from the fan motor.

It is advantageous if an element made of a reverberant material with a sound reflectance of at least 94%, in particular in a ring shape, is arranged at the transition between the first flow area and the second flow area. This results in a reduced noise emission. For example, a foam element is also arranged at the transition.

It is also advantageous if a porous material and in particular foam material for sound reflection is arranged on a fan motor in a flow path. This results in a reduced noise emission.

A vacuum cleaner according to the invention can be used both as a floor vacuum cleaner, if a floor nozzle is fixed to the nozzle connection and the vacuum cleaner is placed on a surface to be cleaned with the floor nozzle, as well as a hand-held vacuum cleaner, the vacuum cleaner then being held free in particular by means of a bow-shaped handle becomes. This results in a wide range of possible uses.

In one embodiment, the length-adjustable tube device comprises at least a first tube, a second tube, a third tube, wherein the first tube is guided in the second tube and the second tube is guided in the third tube, a first locking device which is between the first tube and the second tube acts, wherein in a releasable locking position of the first locking device, the first tube is fixed on the second tube with respect to longitudinal displacement, a second locking device which acts between the second tube and the third tube, wherein in a releasable locking position of second locking device, the second tube is fixed to the third tube with respect to longitudinal displaceability, and a third locking device which acts on the first tube, the second tube and the third tube, the third locking device being a releasable lock has gelation position in which the second tube is fixed to the third tube with respect to longitudinal displacement, and has an unlocking position in which a longitudinal displacement of the second tube to the third tube is released, the third locking device with respect to the transition from the locking position to the unlocking position is controlled by a position of the first tube relative to the second tube and / or by a force with which the third locking device acts on the second tube.

The length-adjustable pipe device is constructed like a cascade. The first tube is displaceable relative to the second tube, the first locking device in its locking position securing the first tube to the second tube.

The second tube is slidable in the third tube. This displaceability is only possible when the third locking device releases it. Since the transition from the locking position to the unlocking position of the third locking device is controlled by the position of the first tube or by a force, that is, position-controlled or force-controlled, this transition occurs automatically when a certain position of the first tube to the second tube is reached. No separate actuating element is necessary.

When the third locking device is then in the unlocking position, the position of the second tube relative to the third tube can be adjusted via the second locking device.

With ease of use, there is a large length adjustment range for the pipe device.

The length-adjustable pipe device is very easy to use.

It is favorable if the first locking device and the third locking device are coupled to one another in such a way that the first locking device is in its locking position when the third locking device is unlocked. This means that you can only move one pipe to another pipe at a time. If the first pipe is moved to the second pipe, then the second pipe cannot be moved to the third pipe. If the second pipe is moved to the third pipe, then the first pipe cannot be moved to the second pipe become. This results in a simple adjustability with high ease of use.

It is also advantageous if the first locking device and the second locking device are coupled to one another in such a way that, in the locking position of the third locking device, the first locking device and the second locking device can be brought together from their respective locking position into an unlocking position or are together in their respective unlocking position. As a result, both the first locking device and the second locking device can be acted on with a common actuating element. In particular, the first locking device can be acted upon via a corresponding locking element of the second locking device without the locking (by the third locking device) of the second tube to the third tube being canceled. Even if the second locking device is in an unlocking position, the second tube is fixed to the third tube via the third locking device in its locking position.

It is then also favorable if, in the unlocked position of the third locking device, the first locking device and the second locking device are decoupled, the second locking device being able to be brought into the locking position and the position of the second tube relative to the third tube being adjustable by the second locking device. This results in a large length range for the length adjustability. In the unlocked position of the third locking device there is no longer any need to act on the first locking device, since it is in a locking position. The result is a compact structure with simple operability.

In one embodiment, the first locking device has a first immersion element, which is in particular a ball or a roller, which in the locking position in a first recess of the first Tube is immersed and which can be exchanged for unlocking from the first recess. In particular, in the locking position, the immersion element is also immersed in a corresponding recess in the second tube. As a result, a form fit between the first tube and the second tube is achieved and the first tube is fixed on the second tube with respect to its longitudinal displacement. When the corresponding first immersion element emerges at least out of the first recess, the form fit is canceled and relative displaceability between the first tube and the second tube is made possible.

In particular, the first tube has a plurality of first recesses spaced apart in a longitudinal direction of the first tube. As a result, a plurality of different length positions of the first tube in relation to the second tube can be set and locked in stages.

It is also favorable if the first locking device has a movable first locking element which, in the locking position, blocks the first immersion element from emerging from the first recess and, in an unlocked position, enables it to emerge. The position of the movable first locking element determines whether or not an escape is possible. This results in a simple locking option, which in turn can be easily canceled.

In particular, a first receptacle for the first immersion element is arranged on the first locking element, into which the first immersion element can be immersed in an unlocked position. This makes it possible to emerge from the first recess of the first tube in order to cancel the form fit between the first tube and the second tube and to enable longitudinal displacement.

It is favorable if the first locking element is displaceable parallel to a longitudinal direction of the pipe device. This allows a displacement movement achieve by a single actuating element for the first displacement device and the second displacement device.

It is also advantageous if a restoring device and in particular a spring device is provided which, without any external force acting on the first locking element, endeavors to bring it into a locking position for the first immersion element. This results in simple operability. By means of the restoring force of the restoring device, locking can be achieved in an automatic manner with appropriate positioning of the first recess.

For the same reason as mentioned above in connection with the first locking device, it is advantageous if the second locking device has a second immersion element which, in the locking position, is immersed in a second recess of the second tube and which can be pulled out of the second recess for unlocking.

For the reasons mentioned above, which were explained in connection with the first locking device, it is also advantageous if the second tube has a plurality of second recesses spaced apart in a longitudinal direction of the second tube.

For the reasons mentioned above, it is also advantageous if the second locking device has a movable second locking element which, in the locking position, blocks the second immersion element from emerging from the second recess and, in an unlocked position, enables it to emerge.

For the same reasons as mentioned above, it is also advantageous if a second receptacle for the second immersion element is arranged on the second locking element, into which the second immersion element can be immersed in the unlocked position.

Furthermore, for the reasons mentioned above, it is advantageous if the second locking element is displaceable parallel to a longitudinal direction of the pipe device.

Furthermore, for the reasons mentioned above, it is advantageous if a resetting device and in particular a spring device is provided for the second locking device, which endeavors to bring the second locking element into a locking position for the second immersion element without external force.

It is also advantageous if the third locking device has a third immersion element and the second tube and the third tube have corresponding receptacles in which the third immersion element is positioned in the locking position and fixes the second tube to the third tube. As a result, the second tube can be secured to the third tube in a simple manner by means of a form fit by means of the third immersion element.

It is particularly advantageous if the first tube has a recess assigned to the third locking device, into which the third immersion element is immersed in the unlocked position of the third locking device and is at least out of the receptacle of the third tube. The third locking device can thereby be brought from the locking position into the unlocking position in a simple manner, controlled via the position of the first tube in relation to the second tube, in order to enable mobility between the second tube and the third tube.

At the locking position of the third locking device, the second tube advantageously forms a barrier wall for the third immersion element, which holds the third immersion element in the receptacles of the second tube and the third tube and thus creates a form fit between them the second tube and the third tube to block the corresponding mobility.

In particular, a third immersion element of the third locking device or a force application element of the third locking device is arranged in a longitudinal direction of the pipe device between the first immersion element of the first locking device and a second immersion element of the second locking device. This results in a compact structure with a large range of length adjustment.

In one embodiment, a force application element is provided, which is in particular spring-loaded and which in the locking position of the third locking device frictionally secures the second tube to the third tube, the frictional securing being canceled in the unlocking position of the third locking device. In this embodiment, there is no form-fit connection between the third tube and the second tube, but a force-fit connection. The force application element provides the necessary force for a force-fit fixation. This fixation can be canceled by appropriate positioning of the first tube in relation to the second tube. It can also be canceled by direct operator intervention on the force application element.

Ease of use, in particular through a single actuating element, results when a slide is provided which is longitudinally displaceable with respect to the pipe device and which is coupled to a first locking element of the first locking device and a second locking element of the second locking device. In particular, in a locking position of the third locking device, both the first locking element and the second locking element can be moved synchronously by the slide. This results in simple operability. Even when the locking element of the second locking device is in an unlocked position is shifted, the second tube still remains fixed on the third tube when the third locking device is in a locking position.

The slide is advantageously arranged to be longitudinally displaceable on the pipe device or on a housing on which the pipe device is mounted. This results in space-saving accommodation with optimized operability.

It is advantageous if the slide is constantly connected to the second locking element. As a result, when the third locking device is in an unlocked position, a position of the second tube relative to the third tube can be set in a simple manner by actuating the slide.

It is also advantageous if the first locking element is not permanently connected to the slide and a displacement movement takes place in a displacement direction through the slide by sliding it. As a result, in a locking position of the third locking device, the slide can act on the first locking element without an additional actuating element having to be provided.

In particular, there is a coupling between the slide and the first locking element in the locking position of the third locking device, and in the unlocking position of the third locking device the slide is decoupled from the first locking element and, in particular, spaced apart. This results in a simple structural design. Only one actuating element, namely the slide, has to be provided in order to enable the length to be adjusted over a large length range.

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

It can further be provided that a second connection for the fluid-active connection with a suction unit is arranged on the pipe device and is in particular arranged on the third pipe. A suction flow can then be guided through the pipe device.

A longitudinally displaceable slide is advantageously arranged on the housing of the vacuum cleaner or on the pipe device, via which the first locking device and the second locking device can be used to produce a respective unlocking position. This results in simple operability, with only one actuating element (namely the slide) having to be provided in order to enable a large length range for length adjustability.

In particular, the pipe device is connected to the suction unit in a fluid-effective manner and, in an operating state, a suction flow is guided through the pipe device.

Figur 1

eine perspektivische Darstellung eines Ausführungsbeispiels eines erfindungsgemäßen Staubsaugers in einer Standstellung;

Figur 2

eine andere perspektivische Ansicht des Staubsaugers gemäß Figur 1, wobei Strömungswege angedeutet sind;

Figur 3

eine Vorderansicht auf den Staubsauger gemäß Figur 1;

Figur 4

eine Schnittansicht längs der Linie 4-4 gemäß Figur 3;

Figur 5

eine schematische Darstellung des Zusammenwirkens einer Bodendüse mit einem Gehäuse zur Fixierung der Standstellung gemäß Figur 1;

Figur 6

eine alternative oder kombinierbare Variante für die Fixierung der Standstellung;

Figur 7

eine Ansicht eines Ausführungsbeispiels einer Filterbox für den Staubsauger gemäß Figur 1;

Figur 8

eine Explosionsdarstellung der Filterbox gemäß Figur 7;

Figur 9

eine Schnittansicht längs der Linie 9-9 der Filterbox gemäß Figur 7;

Figur 10

ein Ausführungsbeispiel eines Vorabscheiders mit einem geöffneten Deckel;

Figur 11

eine perspektivische Darstellung eines weiteren Ausführungsbeispiels eines Vorabscheiders mit einem geschlossenen Deckel;

Figur 12

eine Seitenansicht des Vorabscheiders gemäß Figur 11;

Figur 13

eine Schnittansicht längs der Linie 13-13 gemäß Figur 12;

Figur 14

eine Explosionsdarstellung des Vorabscheiders gemäß Figur 11;

Figur 15(a)

eine ähnliche Ansicht des Staubsaugers wie in Figur 3 ohne Bodendüse, wobei im Vergleich zu der Darstellung gemäß Figur 3 eine Rohreinrichtung in einer Verlängerungsposition ist;

Figur 15(b)

eine ähnliche Darstellung wie in Figur 3 mit Bodendüse, wobei die Rohreinrichtung in einer weiteren Verlängerungsstellung ist;

Figur 16

eine Schnittansicht längs der Linie 16-16 gemäß Figur 15(b);

Figur 17

eine Schnittansicht ähnlich der Ansicht gemäß Figur 16, wobei die Rohreinrichtung in einer weiteren Verlängerungsstellung ist;

Figur 18

eine Teilschnittdarstellung ähnlich wie Figur 16 in einer Verlängerungsstellung der Rohreinrichtung, welche der Ansicht gemäß Figur 15(a) entspricht;

Figur 19

eine vergrößerte Darstellung eines Bereichs der Rohreinrichtung mit Verriegelungseinrichtungen, wobei die gezeigte Stellung einer Nicht-Verlängerungsstellung entspricht;

Figur 20

ein Ausführungsbeispiel einer Rohreinrichtung, welche längenverstellbar ist, in einer Gesamtstellung mit minimaler Länge;

Figur 21

eine ähnliche Ansicht wie Figur 20, wobei jetzt eine Verlängerungsstellung erreicht ist, in welcher ein erstes Rohr relativ zu einem dritten Rohr ausgehend von der Ausgangsposition gemäß Figur 20 verschoben ist;

Figur 22

eine weitere Verlängerungsstellung der Rohreinrichtung, in welcher jetzt ein zweites Rohr gegenüber dem dritten Rohr verschoben ist;

Figur 23

eine Schnittansicht des dritten Rohrs der Rohreinrichtung gemäß Figur 20;

Figur 24

eine Schnittansicht des zweiten Rohrs der Rohreinrichtung gemäß Figur 20; und

Figur 25

eine Schnittansicht des ersten Rohrs der Rohreinrichtung gemäß Figur 20.

The following description of preferred embodiments is used in conjunction with the drawings to explain the invention in greater detail. Show it:

Figure 1

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

Figure 2

another perspective view of the vacuum cleaner according to FIG Figure 1 , with flow paths being indicated;

Figure 3

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

Figure 4

FIG. 4 is a sectional view taken along line 4-4 of FIG Figure 3 ;

Figure 5

a schematic representation of the interaction of a floor nozzle with a housing for fixing the standing position according to FIG Figure 1 ;

Figure 6

an alternative or combinable variant for fixing the standing position;

Figure 7

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

Figure 8

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

Figure 9

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

Figure 10

an embodiment of a pre-separator with an open lid;

Figure 11

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

Figure 12

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

Figure 13

FIG. 13 is a sectional view taken along line 13-13 of FIG Figure 12 ;

Figure 14

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

Figure 15 (a)

a similar view of the vacuum cleaner as in Figure 3 without floor nozzle, in comparison to the illustration according to FIG Figure 3 a tube means is in an extension position;

Figure 15 (b)

a similar representation as in Figure 3 with a floor nozzle, the pipe device being in a further extended position;

Figure 16

FIG. 16 is a sectional view taken along line 16-16 of FIG Figure 15 (b) ;

Figure 17

a sectional view similar to the view according to FIG Figure 16 wherein the tube device is in a further extended position;

Figure 18

a partial sectional view similar to Figure 16 in an extended position of the pipe device, which according to the view Figure 15 (a) corresponds to;

Figure 19

an enlarged illustration of a region of the tube device with locking devices, the position shown corresponding to a non-extension position;

Figure 20

an embodiment of a pipe device, which is adjustable in length, in an overall position with a minimum length;

Figure 21

a view similar to Figure 20 , an extension position is now reached in which a first tube is relative to a third tube, starting from the starting position according to FIG Figure 20 is shifted;

Figure 22

a further extended position of the pipe device, in which a second pipe is now displaced relative to the third pipe;

Figure 23

a sectional view of the third tube of the tube device according to FIG Figure 20 ;

Figure 24

a sectional view of the second tube of the tube device according to FIG Figure 20 ; and

Figure 25

a sectional view of the first tube of the tube device according to FIG Figure 20 .

An embodiment of a vacuum cleaner (as an example of a cleaning device), which in the Figures 1 to 4 Shown as a whole and denoted there by 10, comprises a housing 12 and a pipe device 14.

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

In the Figures 1 to 4 the vacuum cleaner 10 is shown in a standing position 22. In this standing position 22, a floor nozzle 26 is fixed as a suction nozzle on the pipe device 14 at a nozzle connection 24. The floor nozzle 26 stands on a surface 28 ( Figure 4 ) on. The first housing side 16 faces the floor nozzle 26 and the second housing side 18 faces away from the floor nozzle 26.

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

In relation to a flow guide, the suction unit 32 is arranged downstream of the separator device 30. The separator device 30 lies 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 comprises a fan motor 34 and a fan 36 which is driven in rotation 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 in the first extension axis 20 between the first housing side 16 and the second housing side 18. In one embodiment, the housing wall 38 is at least approximately planar.

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

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

The pipe device 14 is fixed or mounted on the outside of the housing 12 on the housing wall 38.

The pipe device is adjustable in length. It has the nozzle connection 24 on a first pipe 46. The first tube 46 is guided displaceably in a second tube 48 in a longitudinally displaceable manner in a displacement direction 50 which is parallel to the second axis of extension 44.

The second tube 48 is guided displaceably in a third tube 52 in addition to the direction of displacement 50.

The pipe device 14 is designed as a telescopic pipe device in order to achieve a length adjustability. This is explained in more detail below.

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

The pipe device 14 has a further connection 54. This connection 54 is fixedly (immovably) positioned with respect to the housing 12. It 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 device 14, which is seated on the third pipe 52, and the housing connection 56. The connecting pipe ensures a fluid-effective connection between the pipe device 14 (and thereby an outlet side of the pipe device 14 via the connection 54) and the separator device 30.

The first pipe 46, the second pipe 48 and the third pipe 52 of the pipe device 14 are designed as rigid pipes which are made in particular from a metallic material. The tubes can also be made of a plastic material.

The connecting tube 48 is also made as a rigid tube and in particular made of a metallic material or plastic material.

The connecting tube 58 is designed as a bow-type handle 60, on which an operator can hold the vacuum cleaner 10 and can also use it as a hand-held vacuum cleaner, for example.

A free space 64 is formed between an area 62 of the pipe device 14 with which it projects beyond the second housing side 18, the second housing side 18, and the connecting pipe 58. A hand or finger of the operator can penetrate through the free space 64 when holding the bow-type handle 16.

A cover 110 and in particular a hinged cover 110 are provided on the connecting pipe 58, in particular in the vicinity of the connection 54. The cover 110 covers an opening on the connecting pipe 58.

By opening the cover 110, a fluid-active connection is established between an outer space around the vacuum cleaner 10 and an interior of the connecting pipe 58.

By opening the cover 110, a false air opening can be provided, which can be used, for example, to detach a suction nozzle, which is fixed to the pipe device 14, from a surface 28 when it has become firmly sucked.

Alternatively or additionally, dirt on the pipe device 14 or the connecting pipe 58 can be removed via the opening after the cover 110 has been opened.

The nozzle connection 24 is closer to the first housing side 16 than to the second housing side 18. A position of the nozzle connection 24 and thus also a suction nozzle held thereon can be adjusted relative to the second housing side 18; a distance between the nozzle connection 24 and the second housing side 18 can be set in a determinable manner via the pipe device 14.

In one embodiment, the setting of the position of the nozzle connection 24 to the second housing side 18 takes place by setting the position of the first pipe 46 to the second pipe 48 and by setting the position of the second pipe 48 to the third pipe 52. This will be explained in more detail below .

The floor nozzle 26 has a housing 66. In one embodiment, the housing 66 has an approximately cuboid shape. The housing 66 has a front 68, a rear 70, opposing lateral sides 72 a, 72 b, and a top 74.

In one embodiment, the lateral sides 72a, 72b are arranged perpendicular to the front side 68. They have an area 76 towards the rear side 70 where they are beveled.

A roller device 78 is positioned on the rear side 70 outside the housing 66. This includes one or more rotatable rollers. The floor nozzle 26 can be supported on the surface 28 via the roller device 78.

One or more support elements 80 are arranged in the housing 66, via which the floor nozzle 26 can be supported on the surface 28 at a distance from the roller device 78. A support element 80 is designed, for example, as a sliding element for the surface 28 or as a roller element.

The floor nozzle 26 has a suction opening 82. When the floor nozzle 26 is supported on the surface 28 via the roller device 78 and via the support elements 80, the suction opening 82 faces the surface 28. A suction flow can be applied to the surface 28 to be suctioned via the suction opening, which can be constructed in several parts or in one part.

The floor nozzle 26 has a connection 84. Via this connection 84, the floor nozzle 26 can be connected in a fluidically effective manner to the pipe device 14 and thereby to the first pipe 46 and also mechanically to the pipe device 14.

A line 86 is arranged between the suction opening 82 and the connection 84, via which line the connection 84 and the suction opening 82 are fluidically connected to one another.

The connection 84 is designed in cooperation with the nozzle connection 24 in such a way that the pipe device 14 can be plugged into a connection area 88 of the floor nozzle 26 via the first pipe 46. An insertion direction is in particular parallel to the second extension axis 44 (based on a position in which the tube device 14 is already inserted in the connection area 88).

The top 74 of the housing 66 of the floor nozzle 26 has a flat area 90 ( Figure 4 ).

A first fixing device 92 is arranged on the upper side 74 and in particular on the flat area 90. A second fixing device 94, which serves to cooperate with the first fixing device 92 of the floor nozzle 26, is arranged on the housing 12 and thereby on the first housing side 16.

In one embodiment, the first fixation device 92 comprises one or more engagement recesses 96. The second fixation device 94 comprises one or more ribs 98, one rib being arranged on the second housing side 18 such that it engages in an associated engagement recess 96 in the standing position 22 and while the standing position 22 secures.

In the standing position 22, the pipe device 14 is in a basic position in which the pipe device 14 has, in particular, a minimized length along the second extension axis 44 and the corresponding position of the pipe device 14 is then secured. This is described in more detail below. In particular, a rib 98 and an associated engagement recess 96 are designed in such a way that the interlocking of rib 98 and engagement recess 96 produces a form fit.

The cooperation of the first fixing device 92 with the second fixing device 74 prevents the vacuum cleaner 10 from tipping in the standing position 22.

In Figure 5 the interaction of the first fixing device 92 with the second fixing device 94 is shown schematically.

The vacuum cleaner 10 has a center of mass 100 ( Figure 4 ). The center of mass 100 of the overall device lies within the housing 12 and, for example, at the level of the suction unit 32.

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

In the standing position 22, the center of mass 100 is above the floor nozzle 26. A stable position is thereby achieved and the standing position 22 is secured.

The first fixation device 92 and the second fixation device 94 are designed to be adapted to one another and in particular the rib or ribs 98 and the associated engagement recess 96 or corresponding engagement recesses 96 are designed so that an inclination of 10 ° (and in particular by at least 10 °) does not cause the fixation releases, that is, the corresponding connection between the first fixation device 92 and the second fixation device 94 is maintained even at an inclination of 10 ° in all directions.

The first fixation device 92 only interacts with the second fixation device 94 when, as mentioned above, the tube device 14 is retracted ( Figures 1 to 4 ).

If, based on this, the distance between the nozzle connection 24 and the first housing side 16 is increased, then the second fixing device 94 and the first fixing device 92 can no longer engage one another.

In an alternative or combinatorial embodiment ( Figure 6 ) (at least) one counter-element 102 is arranged on the upper side 74 of the floor nozzle 26 and in particular on the flat area 90. (At least) one corresponding magnetic 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 magnetic element 104 are so close to one another that a magnetic holding force acts, which secures a position of the floor nozzle 26 in relation to the housing 12.

This can be used, for example, when the vacuum cleaner 10 is in the standing position 22 and is lifted from the surface 28 to be cleaned so that the floor nozzle 26 does not fold away from the housing 12.

In principle, the combination of counter element 102 and magnetic element 104 can also be used to fix the standing position 22 in a non-positive manner by releasably fixing the housing 66 of the floor nozzle 26 to the housing 12 of the vacuum cleaner 10.

In one embodiment it is provided that the floor nozzle 26 is switchable for operation on a hard surface or a carpet surface, it being possible in particular to switch over whether the support element (s) 80 are rollers 106 ( Figure 4 ) when used on a hard surface, or sliding elements are when used on a carpet surface.

A corresponding switchover mechanism 108 is provided.

An openable door 112 is arranged on the housing 12. This door 112 is, for example, hingedly held on the rest of the housing 12 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 one embodiment (see also Figure 8 ) the door 112 is firmly fixed to the separator device 30. If the separator device 30 is correctly positioned in the housing 12, then the door 112 "automatically" closes the door opening.

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

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

The door 112 is fixed to the filter box 116.

The filter box 116 has an input connection 118 which, when the filter box 116 is positioned in the housing 12, is fluidically connected to the housing connection 56. A suction stream 118, which is loaded with dirt, enters the filter box 116 through the input port 118.

The filter box 116 also has an output connection 120. A filtered suction flow occurs from the output connection 120, the dirt load of which is considerably lower than the suction flow which enters at the input connection 118.

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

Corresponding fixing means are provided in the housing 12, which are used to fix (fixed positioning) the filter box 116 in the housing 12. The filter box 116 accordingly has corresponding means.

In one embodiment, the separator device is designed as a filter separator device and is multi-stage. The corresponding stages are arranged in the filter box 116.

In particular, the filter separator device 30 comprises a pre-separator 122 for “coarse dust” and a filter device 124 for dust. In relation to a flow guide for a suction flow containing dirt, the pre-separator 122 is connected upstream of the filter device 124 for (fine) dust.

The pre-separator 122 comprises a receiving basket 126, which is designed in particular as a mesh basket. The receiving basket 126 is made of a plastic material, for example. The receiving basket 126 has, for example, the shape of a truncated cone with openings 128 predetermined by the lattice structure. A mesh structure 129, for example in the form of a fabric, is arranged at the openings 128 (cf. Figure 8 ; the mesh structure lies at all openings 128, but is only shown for one).

The mesh structure 129 defines via a mesh size which dust particles are collected in terms of their size in the receiving basket 126 and which are allowed to pass through to the filter device 124. Typical values for mesh widths of the mesh structure are in the range between (and including) 100 μm and 200 μm _. Coarse dust, which the pre-separator 122 collects, then consists of particles with an average diameter larger than the mesh width and fine dust, which the filter device 124 collects, consists of particles with an average diameter smaller than the mesh width.

The receiving basket 126 has a receiving space 130. During operation of the vacuum cleaner 10, a dirt-laden suction flow is passed through the receiving space 130. The meshes of the mesh structure 129 of the mesh basket ensure a permeability.

A cover 132 is assigned to the receiving basket 126. The cover 132 serves to cover the receiving basket 126 on a side 134 which faces away from the output connection 120.

The cover 132 has a connection 136 for a suction flow line. The connection 136 is in fluid communication with the input connection 118 of the filter box 116 or forms this connection.

In an alternative embodiment, the connection is arranged on the receiving basket 126.

A ring 138 is positioned on the side 134 (upper side) of the receiving basket 126. The ring 138 can be a part which is separate from the rest of the receiving basket 126 and which is fixed, or it can be connected in one piece to the receiving basket 126.

The ring 138 is used to fix the receiving basket 126 on the filter box 116 and is in particular designed to be circumferential.

For this purpose, the filter box 116 comprises a housing 140 with a wall 142. Arranged on an inside of the wall 142 is a web element 144 which projects away from the wall 142 into an interior of the housing 140.

The ring 138 has a circumferential flange 146 which, in a contact area, rests on the web element 144 when the receiving basket 126 is positioned on the filter box 116. When the flange 146 rests on the web element 144, the receiving basket 126 is prevented from “falling down”.

Furthermore, the rim 138 has a bracket 148 which sits on the flange 146 outside the contact area for the web element 144. A free space 150 is formed between the bracket 148 and the receiving basket 126. The bracket 148 projects away from the side 134 in the direction of a base 152 of the receiving basket 126.

The ring 138 and thus the receiving basket 126 can be slipped over the wall 142 via the bracket 148; A region 154 of the wall 142 is immersed in the free space 150 when the receiving basket 126 is fixed to the filter box 116. A transition area to the bracket 148 rests on an end face 156 of the wall.

The receiving basket 126 is suspended in the housing 140 of the filter box 116 via the ring 138. Downward mobility is blocked by the flange 146 and the bracket 148. Movement in a transverse direction (with a certain amount of play) is blocked by means of the bracket 148.

The receiving basket 126 can be fixed to the filter box 116 via the rim 138 in a simple and in particular tool-free manner by hanging it on the housing 140 and correspondingly easily removed without tools.

The contact area of the flange 146 for the web element 144 is in particular arranged diametrically opposite the bracket 148.

In one embodiment ( Figures 8 to 10 ) the cover 132 is designed as a hinged cover. A hinged joint 158 is arranged on the rim 138. The hinged joint 158 is arranged opposite the bracket 148 in particular. In this area, the rim 138 is reinforced due to the bracket 148 and the folding joint 158 can thereby be easily integrated into the rim 138 in this area.

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

The pin-shaped active element 160 is seated on the underside 162 and protrudes transversely beyond this. When the cover 132 is closed, the pin-shaped active element 160 is immersed in the receiving space 130.

The lid 132 has a center line 164 and a center plane 166. The pin-shaped active element 160 sits between the center line 164 or the center plane 166 and the folding joint 158. In particular, it is located closer to the folding joint 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 by opening it is moved through the receiving space 130 (cf. Figures 8 and 10 ) and in the process does not touch a wall of the receiving basket 126 or the movement of the cover 132 is not limited by the pin-shaped active element 160 hitting such a wall.

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

Dirt collects in the receiving space 130 of the pre-separator 122 when the vacuum cleaner 10 is in operation.

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

The receiving basket 126 with the cover 132 can be removed. It can be fixed to the filter box 116 in a detachable manner.

In an alternative embodiment, the lid is not fixed directly to the receiving basket 126, but rather to the filter box 116 outside the receiving basket 126. This can thus be removed without a lid.

When the cover 132 is opened by being opened, the pin-shaped acting element 160 moves 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. This is loosened. This makes it easier to empty the receiving basket 126.

In addition, the pin-shaped active element 160 in the manner of a shovel can also take along dirt in order to also facilitate emptying.

In a further embodiment, a receiving basket 126 'with a lid 170 ( Figures 11 to 14 ) intended. Basically, the receiving basket 126 ′ has the same design as the receiving basket 126, the receiving basket 126 ′ having a rim 172.

The cover 170 is designed as a rotating cover which can be fixed to the receiving basket 126 'via a bayonet lock.

The ring 172 arranged on the receiving basket 126 'comprises angled brackets 174. In the exemplary embodiment shown, four angled brackets are provided at an angular spacing of 90 °.

An angle bracket 174 has a recess 176 into which the cover 170 is immersed with an edge region 178. As long as this edge region 178 is immersed in the recess 176, an angle bracket 174 prevents the cover 170 from being removed upwards from a bottom 152 'of the receiving basket 126'.

The cover 170 itself is provided with recesses 180 corresponding to the angle brackets 174. In the embodiment shown, four recesses 180 are provided at an angular distance of 90 °.

If a recess 180 lies in the recess 176 of an angled bracket 174, then the corresponding angled bracket 174 no longer blocks the upward lifting of the cover 170, that is, if the recesses 180 are brought into correspondence with the angled brackets 174, then the cover 170 can be lifted upwards.

In a locked position of the cover 170, it is positioned such that the edge area 178 is accordingly located within an angle bracket 174.

In one embodiment, the cover 170 is designed in such a way that it has a lateral stop 182 on the cover 170, which can hit an angle bracket 174. As a result, further rotation of the cover 170 relative to the ring 172 is blocked. Starting from the abutment of an angle bracket 174 against the lateral stop 182, the cover 170 can be rotated such that the recess 180 corresponds to the recesses 176 of the angle brackets 174. The cover 170 can then be lifted off.

A plurality of pin-shaped active elements 186 are seated on the cover 170 on an underside 184.

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

You can reach up to the floor 152 '.

In particular, a plurality of pin-shaped action elements 186 are provided diametrically opposite one another.

A pin-shaped active element 186 can be designed to be multi-pronged or, for example, as a bundle of to enlarge the surface a plurality of spaced or interconnected tubes.

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

To empty a dirt-filled receiving basket 126 ', the cover 170 is removed. For this purpose, the cover 170 is rotated. As a result of the rotation of the pin-shaped active elements 186 into the receiving space 130, dirt is loosened and / or dirt remains adhering to the pin-shaped active elements 186.

When the cover 170 is removed, the receiving basket 126 ′ can be emptied more easily or dirt that adheres to the pin-shaped active elements 186 can be shaken off.

By means of the pin-shaped active elements 186 or 160 on the cover 132 or the cover 170, the receiving basket 126 or 126 'of the pre-separator 122 can be emptied in a simple manner after being removed from the housing 12. Due to the relative movement of the pin-shaped active element 160 and the pin-shaped active elements 186 when the cover 132 is opened or the cover 170 is opened, dirt is "shoveled over" into the receiving basket 126 or 126 'and caked dirt is thereby loosened.

As already mentioned above, a pin-shaped action element 186 can also serve as an adhesive element for dirt.

The filter device 124 for dust, which is arranged downstream of the pre-separator 122 ("coarse stage") as a second stage (“fine stage”) of the filter separator device, is positioned in the housing 140 of the filter box 116. In particular, it is detachably positioned in the housing 140.

In one embodiment, corresponding tongue-shaped engaging means 190 for the filter device 124 are arranged on the wall 142 in order to enable the filter device 124 in the housing 140 to be cleaned.

In one embodiment, the filter device 124 is designed as a cartridge filter 192.

The filter device 124 comprises a filter element 194 which is, for example, tubular with filter folds 198. The filter folds 198 sit on a base 196, via which in turn the filter device 124 is fixed to the housing, for example via a bayonet connection.

An opening in the filter element 194, which is surrounded by the filter material of the filter folds 198, and an opening in the base 196 corresponds to the output connection 120 of the filter box 116. For example, the output connection 120 is then formed via the filter device 124 on the base 196.

The interior of the filter element 194 is closed to the pre-separator 122. Spaces between filter folds 198 are open to the pre-separator 122.

A suction flow (in Figure 9 indicated by the reference numeral 200) then enters the filter device 124 and there between filter folds 198 via an end face 202 of the filter element 194.

The suction flow flows through the filter material of the filter folds 198, dust particles not penetrating the filter element 194, that is to say essentially remaining on the filter element 194.

A suction flow is available at the output connection 120, the dust load of which is considerably less dust-laden than the suction flow which is coupled into the input connection 118.

When the filter element 194 is rotated in the housing 140, the engagement means 190 act on filter folds 198 and "shake" them, as a result of which adhering dust particles are loosened. This makes it possible to reduce the amount of dust in the environment when the filter box 116 is emptied.

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

If necessary, the filter device 124 (in particular in the form of a cartridge filter 192), which is clipped into the housing 140 above the base 196, can be removed and exchanged or shaken out, with dust then being emptied from the filter device via the end face 202 is.

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

An exhaust air filter 206 is arranged downstream of the suction unit 32 in the housing 12 of the vacuum cleaner 10. The exhaust air filter 206 is used in particular to filter out engine debris.

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

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

In principle, it is also possible for a corresponding flow deflecting element to be arranged downstream of the exhaust air filter 206.

The flow deflecting element has a corresponding wall which defines a first flow area 210 and a second flow area 212 with opposite main flow directions. For example, the second flow area 212 surrounds the first flow area 210 in an annular manner.

At a transition 214 between the first flow area 210 and the second flow area 212 there is a reverberant wall made of a reverberant material that has a sound reflection level of at least 94%.

The wall at the transition is in particular annular.

The transition is formed in an area around the fan motor 34.

In one embodiment, a foam ring is arranged at the transition 214.

The housing 12 has a closable cover 216 in the area of the exhaust air filter 206 in order to allow access to the exhaust air filter 206 for its replacement.

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 in the first axis of extension 20 and essentially occupies the entire height of the housing between the exhaust air filter 206 and the second housing side 18.

Following the exhaust air filter 206, a space 220 is formed in the housing 12, which then merges into the space 218. The space 220 between the first housing side 16 and the exhaust air filter 206 serves as a deflection area for deflecting the flow into the space 218.

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

The openings 222 are fluidly connected to the outside space. Exhaust air from the suction unit 32, which is purified air, can exit through the openings 222 from the space 218 into the outside space.

At the openings 222, in particular within the housing, there is in each case an open-pore structure 224, for example in the form of foam elements.

In one embodiment, an open-pore structure is arranged in the space 220, which structure is formed, for example, by a foam.

A flow path 226 on the vacuum cleaner 10 for a suction flow during operation of the vacuum cleaner 10 comprises a first region 228, which lies in the pipe device 14. A dirt-laden suction stream flows through the first region 228 in the pipe device 14 to the connecting pipe 58.

A main direction of flow of the flow in this first region 228 is essentially parallel to the second axis of extent 44.

A second region 230 of the flow path 226 is formed in the housing 12 between the housing connection 56 and the exhaust air filter 206.

At the connecting pipe 58, the flow is deflected from the first region 228 into the second region 230.

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

The flow deflecting element 208 on the blower motor 34 takes place within the second region 230, a flow reversal, which serves in particular to reduce the noise emission.

A third area 232 is formed by the space 218. Exhaust air from the suction unit 32, which is purified air, flows in the third area 232. In the third area 232, a main flow direction is at least approximately parallel to the first extension axis 20 and the main flow direction is parallel to the main flow direction in the first area 228 or opposite to the main flow direction in the second area 230.

The space 220 serves as a deflection area for deflecting the flow from the second area 230 into the third area 232.

In Figure 2 the flow paths are indicated.

The flow path 236 traverses distances of the order of magnitude of the height of the housing 12, namely first a suction flow contaminated with dirt flows through the second area 228, then the second area 230, with cleaning taking place, and the clean exhaust air flow then flows through the third area 232 and is released into the environment.

With this large flow path, low noise emissions can be achieved due to the corresponding flow path.

The flow deflecting element 208 with a corresponding design of the transition 214 also ensures low sound emission.

The air flow is deflected by the flow deflecting element 208 in a manner that is neutral in terms of efficiency, in particular to reduce the sound emission.

The pipe device 14 is telescopic ( Figures 15 to 25 ). For this purpose, the pipe device 14 comprises the third pipe 52, which is fixedly mounted on the housing wall 38. The third tube 52 has an extension in the second extension axis 44. The third tube 52 is designed in particular to be rigid.

The second tube 48 is arranged in the third tube and is guided in a longitudinally displaceable manner in the direction of the second axis of extension 44. The second tube 48 is also rigid. It is designed in particular in the form of a cylinder ring. Correspondingly, an interior of the third tube 52 is (hollow) cylindrical.

In the second tube 48, the first tube 46 is arranged to be longitudinally displaceable on the second axis of extension 44. The first tube 46 has an annular cylindrical shape. Correspondingly, the second tube 48 has a (hollow) cylindrical interior.

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

Corresponding relative positions of the second tube 48 to the third tube 52 can be set in a fixable manner. Correspondingly, positions of the first pipe 46 in relation to the second pipe 48 (and thus also in relation to the third pipe 52) can be set in a fixable manner.

A first locking device 240 is assigned to the pipe device 14 (see, for example, FIG Figure 19 ), which acts between the first tube 46 and the second tube 48 and fixes the first tube 46 to the second tube 48 in a locking position. This locking position can be released.

Furthermore, the pipe device 14 is assigned a second locking device 242, which acts between the third pipe 52 and the second pipe 48. The second locking device 242 fixes the second tube 48 to the third tube 52 in a locking position. This locking position of the second locking device 242 can be released.

A third locking device 244 is also assigned to the pipe device. This third locking device 244 acts between the first tube 46, the second tube 48 and the third tube 52. In a releasable locking position of the third locking device 244, it fixes the second tube 48 to the third tube 52. This locking position is releasable into an unlocking position. In the unlocked position of the third locking device 244, displaceability of the second tube relative to the third tube 52 is enabled, but a specific position of the second tube 48 relative to the third tube 52 can be fixed by the second locking position 242.

The transition from the locking position of the third locking device 244 to the unlocking position is predetermined via the first tube 46. In one embodiment, a position of the first tube 46 in relation to the second tube 48 determines the transition from the locking position to the unlocking position of the third locking device 244.

In a further embodiment, an action of force determines this transition.

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

First recesses 248 are arranged on the first tube 46 at a distance in a direction along the second extension axis 44, see also FIG Figures 15 (a), 15 (b) and 16 .

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

A first recess 248a, which is closest to the nozzle connection 24, defines the position of the first tube 46 relative to the housing 12 and thus the position of the nozzle connection 24 for the standing position 22. When the first immersion element 246 is immersed in the first recess 248a and the first locking device 240 is locked, then the position of the nozzle connection 24 to the first housing side 16 is reached, in which the first fixing device 92 and the second fixing device 94 can cooperate with one another in order to fix the standing position 22.

This position is in the Figures 1 to 4 shown.

The first locking device 240 also has a movable first locking element 250 (see. For example Figure 19 ) on. This movable first blocking element 250 has a contact area 252 for the first immersion element 246. When this contact area 252 lies above the first immersion element 246, the first immersion element 246 is thereby held in the corresponding first recess 248 and the locking position is established.

In Figure 19 the locking position of the first locking device 240 is shown.

Adjacent to the contact area 252, the first blocking element 250 has a first receptacle 254. The first receptacle 254 has a beveled wall 256 facing the contact area 252.

If the first receptacle 254 is located above the first immersion element 246, then the first immersion element 246 can be removed from the corresponding emerge from the first recess 248 and dip into the first receptacle 254.

A recess 258 which is continuous is formed on the second tube 48. When the second immersion element 246 is located in the recess 258 and in the corresponding first recess 248, longitudinal displacement between the first tube 46 and the second tube 48 is blocked. When the first receptacle 254 lies above the recess 258 by appropriately positioning the first locking element 250, the first immersion element 246 can completely emerge from the first receptacle 254 and accordingly the mobility of the second tube 48 relative to the first tube 46 is released.

The first locking element 250 is arranged on a guide 260 and is guided in a longitudinally displaceable manner in a direction parallel to the second axis of extension 44.

A restoring device 262, which is formed in particular by one or more springs, is arranged on the first blocking element 250. The reset device is positioned on the guide 260. If the first locking element 250 is displaced in such a way that the first receptacle 254 lies above the recess 258, then the force of the restoring device 262 must be overcome. Without any external force acting on the first locking element 250, it is reset and the contact area 252 covers the recess 258 and holds the first immersion element 246 in the first receptacle 254 and thereby in turn blocks the longitudinal displacement of the first tube 46 relative to the second tube 48.

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

The second locking device 242 also has a second blocking element 270, which comprises a contact area 272. The contact area 272 basically has the same function as the contact area 252 of the first locking element 252. The second locking element 270 accordingly has a second receptacle 274.

In the locking position of the second locking device 242, the second immersion element 246 is immersed in a corresponding second recess 266 and the recess 268 and the contact area 272 lies over the second immersion element 264 and secures this position.

By shifting the second locking element 270, the second receptacle 274 is brought over the second immersion element 264, that is to say over the recess 268, and the second immersion element 264 can emerge and, in the process, immerse into the second receptacle 274. As a result, the form fit between the second tube 48 and the third tube 52 is canceled and the locking position for the second locking device 242 is canceled.

The second locking element 270 is guided in a longitudinally displaceable manner on a guide 276. A direction of displacement lies parallel to the second axis of extension 44.

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

For a movement of the second locking element 270 in order to bring the second receptacle 274 over the second immersion element 264, the force of the restoring device 278 must be overcome. A corresponding external force is necessary for this. Without this external force, the reset device ensures 278 for a backward displacement of the second locking element 270 in order to bring the contact area 272 over the second immersion element 264 and to press it into a corresponding second recess 266.

A plurality of corresponding second receptacles 274 are arranged on the second tube 48 in order to enable a corresponding variable setting and definition of the position of the second tube 48 in relation to the third tube 52.

On the housing 12 of the vacuum cleaner 10 is a slide 280 (for example Figure 4 ) arranged. This slide 280 is guided in a longitudinally displaceable manner parallel to the second axis of extension 44. An upper side of the second slide 280 protrudes beyond the second housing side 18 in order to enable operability and in particular to enable pressure operability.

The slide 280 extends along the housing wall 38 and along the third tube 52 as far as the second blocking element 270. The second blocking element 270 is connected to the slide 280 in a force-transmitting manner. The connection is fixed, for example.

In one embodiment, the second blocking element 270 is seated approximately at the level of an upper region of the fan motor 34.

A corresponding guide for the longitudinal displaceability 280 of the slide is provided on the housing wall 38.

In principle, it is also possible for the slide 280 to be arranged on the pipe device 14 so as to be longitudinally displaceable.

The first locking element 250 is coupled to the slide 280, but not permanently connected to it.

The second locking element 270 ( Figure 19 ) has a front end 282 in continuation of the contact area 252. With this front end 282, the second locking element 270 can act on the first locking element 250, and by shifting the slide 280 and thus the second locking element 270, the first locking element 250 can basically be shifted in the same direction as long as the second tube 48 is not opposite the third Tube 52 is moved.

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

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

A receptacle 286 for the third immersion element 284 is formed on the third tube 52. Corresponding to this, a receptacle 288 for the third immersion element 284 is formed on the second tube 48. When the third immersion element 284 is seated in the receptacle 286 and in the receptacle 288, a positive coupling is established between the third pipe 52 and the second pipe 48 and the second pipe 48 is thereby fixed on the third pipe 52 with regard to its mobility. Even if the second locking device 242 is not locked, that is, in an unlocked position, the second tube 48 cannot be displaced in the third tube 52 when the third locking device 244 is in its locking position in which the third immersion element 284 is in the receptacle 286 and seated in the receptacle 288.

The receptacle 288 in the second tube 48 is open to the first tube 246. A wall 290 of the first tube blocks mobility and thus an exchangeability of the third immersion element 284 from the receptacles 286 and 288.

The first tube 46 has, adjacent to an end 292 which faces away from the nozzle connection 24, a recess 294 for the third immersion element 284 (see, for example, FIG Figure 20 or Figure 25 ). This recess 294 sits on a different side than the first recesses 248. For example, the recess 294 and the first recesses 248 are arranged diametrically opposite one another.

The first immersion element 284 is arranged, for example, diametrically opposite the second immersion element 264 (it can be positioned at a different height position with respect to the second axis of extension 44).

The recess 294 is assigned to the third immersion element 284. The locking position of the third locking device 244 is when the third immersion element 284 is not immersed in the recess 294.

When the first tube 46 is at a certain position relative to the second tube 48, namely in the position that the recess 294 is opposite the third immersion element 284, the third immersion element 284 can emerge from the receptacle 286 of the third tube 52. As a result, the form fit between the second tube 48 and the third tube 52 is canceled and the unlocking position is reached in which the third locking device 244 releases the locking of the third tube 52 in the second tube 48. In this unlocked position of the third locking device 244, only the second locking device 242 still acts with regard to the definition of the position of the second tube 48 in relation to the third tube 52.

The transition from the locking position of the third locking device 244 to the unlocking position is determined by the position of the first tube 46 to the second tube 48, namely when the recess 294 is positioned opposite the third immersion element 284 and the third immersion element 284 is immersed in the recess 294. In this position, a maximum telescopic position of the first tube 46 in relation to the second tube 48 is reached.

The recess 294 is arranged in such a way that the third immersion element 284 can only immerse when the first locking device 240 is in a locking position. A height distance between the recess 294 and the corresponding highest first recess 248 (in Figure 25 denoted at 248b) is such that it corresponds to a distance between the first immersion element 246 and the third immersion element 284.

The relative height distance along the second axis of extension 44 between the first immersion element 246 and the third immersion element 284 remains constant regardless of the position of the first tube 46 to the third tube 52 or of the second tube 48 to the third tube 52; When the third immersion element 284 has emerged from the receptacle 286 of the third tube 52 and is immersed in the recess 294, then it is carried along with the second tube 48 by the movement of the second tube 48 to the third tube 52. Since the guide 260 is fixedly arranged on the second tube 48 and the third immersion element 284 is fixed with respect to the second tube 48 in a direction parallel to the second extension axis 44, the described entrainment takes place.

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

In one embodiment, which is also shown in Figure 19 As an alternative shown in broken lines, no immersion element corresponding to the third immersion element 284 is provided.

An application of force (instead of a form-fit connection via an immersion element) ensures a force-fit coupling between the third tube 52 and the second tube 48 for the corresponding definition of the relative position. If, for example, through appropriate positioning of the first tube 46, the application of force is such that there is no longer a force-fit coupling, then the unlocking position has been reached.

For the application of force, a force application element 296 such as a spring-loaded lever element is provided.

In the unlocked position of the third locking device 244, in which the second tube 48 is locked to the first tube 46 via the first locking device 240, this combination of the second tube 48 and the first tube 46 as a whole is displaceable relative to the third tube 52. As a result, the first blocking element 250 is decoupled from the second blocking element 270 and it separates from the contact at the front end 282 and thus separates from the slide 280. The slide 280 no longer acts on the first locking device 240.

The pipe device 14 with the locking devices 240, 242, 244 functions as follows:
In the standing position 22 of the vacuum cleaner 10 (see Figures 1 to 4 ) the second tube 48 is completely immersed in the third tube 52 within its movement path. The first tube 46 is completely immersed in the second tube 48 within its movement path. The position of the second tube 48 with respect to the third tube 52 is determined by the second locking device 242 and the third locking device 244.

The nozzle connection 24 protrudes beyond the first housing side 16 so far that the floor nozzle 76 can be fixed and, in the standing position, the first fixing device 92 can engage the second fixing device 94.

The length of the pipe device 14 is increased in relation to the standing position 22 for suction operation.

For this purpose, the first tube 46 is first extended out of the second tube 48.

For this purpose, the slide 280 is actuated and shifted downwards, that is to say shifted in the direction of the nozzle connection 24. It displaces the second locking element 270 and, by striking the front end 282, also the first locking element 250. The shifting of the first locking element 250 causes the first immersion element 246 to emerge when the first receptacle 254 lies above the recess 258, with the positive fit is suspended between the first tube 46 and the second tube 48 and the first tube 46 is displaceable with respect to the second tube 48.

A corresponding displacement position is locked by terminating the force on the slide 280 without the immersion element 246 correspondingly dipping into a recess 248 and depending on the desired longitudinal position and holding via the contact area 252.

When the slide 280 is actuated, the second locking device 242 is also locked at the same time as the first locking device 240. Due to the third locking device 244, however, the second tube 48 remains fixed on the third tube 52 as long as the third immersion element 284 does not enter the recess 294.

In the Figures 15 (a), 15 (b) and 16 Different positions of the first tube 46 in relation to the second tube 48 are shown, the second tube 48 being fixed to the third tube 52 via the third locking device 244.

The ones in the Figures 15 (a) and 15 (b) The indicated positions of the first tube 46 in relation to the second tube 48 are positions with a locking position. The position according to Figure 15 (a) corresponds to a position for a hand-held vacuum cleaner. The position according to Figure 15 (b) corresponds to a position for a floor vacuum operation for a small operator.

The position of the nozzle connection 24 and thus also of a suction nozzle relative to the first housing side 16 can thus be adjusted within the predetermined distance.

In Figure 20 a locking position for the first locking device 240, the second locking device 242 and the third locking device 244 is shown, which corresponds to the standing position 22, that is, in which the tube device 14 has a minimum length.

In Figure 21 a position of the tube device 14 is shown which corresponds to the position according to FIG Figure 16 corresponds to.

When the first tube 46 has been pulled out of the second tube 48 to such an extent that the third immersion element 284 can penetrate into the recess 294 in the region of the end 292, a locking position of the first locking device 240 is also reached. The third locking device 244 is now in an unlocked position and basically the second tube 48 is longitudinally displaceable relative to the third tube 52 and the second locking device 242 now determines a displaceability of the second tube 48 to the third tube 52 and a determination of a displacement position by setting the corresponding Locking position of the second locking device 242. In Figure 17 , 18th and 22nd Corresponding different positions for locked positions of the second tube 48 to the third tube 52 are shown.

When the second tube 48 is displaced with respect to the third tube 52 starting from a basic position in which the third locking device 244 is locked, the first locking element 250 is decoupled from the slide 280 and thus from a second locking element 270. See. for example Figure 22 . The first blocking element 250 is spaced apart from the second blocking element 270.

If, starting from an extended position, the second tube 48 is pushed back into the third tube 52 within its corresponding distance by locking the second locking device 242, then an end position is reached when the first locking element 250 reaches the front end 282 of the second locking element 270 strikes. By actuating the slide 280, a locking position of the first locking device 240 can then be achieved and the third immersion element 284 can immerse into the receptacle 286. As a result, the second pipe 48 is in turn fixed to the third pipe 52 and the first pipe 46 can be displaced in the second pipe 48. The standing position 22 can then be reached again.

By means of the pipe device according to the invention, a length of the pipe device 14 can be set over a large length range via (at least) three pipe elements 46, 48, 52. Only one operating element, namely the slide 280, has to be provided. This results in a high level of ease of use.

Starting from the standing position 22, the position of the slide 280 determines whether the second locking device 242 (and the first locking device 240) are in the locking position or not. If the first locking device 240 is not in the locking position, then the first tube 46 can be moved relative to the second tube 48. A displaceability of the second tube 48 relative to the third tube 52 is predetermined by the position of the first tube 46 relative to the second tube 48, without an additional operating element having to be provided.

The length adjustment of the pipe device 14 is very easy to use.

In principle, the solution according to the invention can also be applied to a pipe device with more than three pipes. The tube device with the three tubes 46, 48, 52 and the corresponding locking devices 240, 242, 244 forms, so to speak, a basic cell for a structure with more than three tubes.

According to the invention, a vacuum cleaner 10 is provided which has extensive operational functions.

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

The position that is optimized for an operator can be set. An operator can hold the vacuum cleaner 10 by the handle 60 of the connecting tube 58 and perform a suction movement.

The vacuum cleaner 10 can be stored in the standing position 22 to save space.

The vacuum cleaner 10 can also be used as a hand-held vacuum cleaner, which is kept free and is not supported, for example, on a floor. The floor nozzle 26 is then replaced by a corresponding suction nozzle. The required length can be set in a simple manner via the pipe device 14 by operating the slide 280.

An "upright vacuum cleaner" can be implemented, which has a stand function, but the vacuum cleaner can also be used as a hand-held vacuum cleaner.

The vacuum cleaner 10 can be implemented in a compact, space-saving manner. It can be designed with a relatively low mass and can be used quickly. It can be used at will due to the stand function in the Stand position 22 can be parked in a space-saving manner, without a wall to lean on or the like is required.

The compact design means that you can vacuum under furniture, for example.

The flow path 226 and also the flow regions 210, 212 result in a reduced noise emission with a low flow loss, the means for noise reduction not significantly impairing the performance of the vacuum cleaner 10 with regard to its suction function.

The pin-shaped active element (s) 116, 186 on the pre-separator 122 allows dirt to be emptied in a simple manner.

List of reference symbols

10

vacuum cleaner

12th

casing

14th

Pipe installation

16

First side of the case

18th

Second housing side

20th

First axis of extension

22nd

Stand position

24

Nozzle connection

26th

Floor nozzle

28

surface

30th

Separator device

32

Suction unit

34

Blower motor

36

fan

38

Housing wall

40

Third side of the housing

42

Further housing wall

44

Second axis of extension

46

First pipe

48

Second pipe

50

Direction of movement

52

Third pipe

54

connection

56

Housing connection

58

Connecting pipe

60

Bow handle

62

Area

64

free space

66

casing

68

front

70

back

72a

Lateral side

72b

Lateral side

74

Top

76

width

78

Roller device

80

Seating element

82

Suction port

84

connection

86

ventilation

88

Connection area

90

upper area

92

First fixation device

94

Second fixation device

96

Engagement recess

98

rib

100

Center of mass

102

Counter element

104

Magnetic element

106

role

108

Switching mechanism

110

cover

112

door

114

Door opening

116

Filter box

118

Input connector

120

Output connector

122

Pre-separator

124

Filter device for dust

126

Receiving basket

126 '

Receiving basket

128

opening

129

Mesh structure

130

Recording room

132

cover

134

page

136

connection

138

wreath

140

casing

142

Wall

144

Bar element

146

flange

148

hanger

150

free space

152

ground

152 '

ground

154

Area

156

Front side

158

Folding joint

160

Pin-shaped action element

162

bottom

164

Center line

166

Middle plane

168a

First page

168b

Second page

170

cover

172

wreath

174

Angle bracket

176

Recess

178

Edge area

180

Recess

182

Lateral stop

184

bottom

186

Pin-shaped action element

188

connection

190

Engaging element

192

Cartridge filter

194

Filter element

196

ground

198

Filter pleat

200

Suction flow

202

Front side

204

Suction nozzle

206

Exhaust air filter

208

Flow diverting element

210

First flow area

212

Second flow area

214

crossing

216

cover

218

room

220

room

222

Connection opening

224

Open-pore structure

226

Flow path

228

First area

230

Second area

232

Third area

240

First locking device

242

Second locking device

244

Third locking device

246

First immersion element

248

First recess

248a

First recess

248b

First recess

250

First locking element

252

Investment area

254

First shot

256

Bevelled wall

258

Recess

260

guide

262

Reset device

264

Second immersion element

266

Second recess

268

Recess

270

Second locking element

272

Investment area

274

Second shot

276

guide

278

Reset device

280

Slider

282

Front end

284

Third immersion element

286

admission

288

admission

290

Wall

292

end

294

Recess

296

Force application element

Claims (15)

1. Separator device for a vacuum cleaner (10), comprising a pre-separator (122) having a receiving basket (126; 126') which has a receiving space (130), wherein in operation of the separator device a dirt-laden suction flow is passed through the receiving space (130) and wherein associated with the receiving basket (126; 126') is a lid (132; 170) which has located thereon at least one pin-shaped engagement element (160; 186) which, when the lid (132; 170) is closed, projects into the receiving space (130) and which, upon movement of the lid (132; 170) relative to the receiving basket (126; 126'), is engageable with dirt in the receiving space (130), characterized in that arranged on the lid (132; 170) is a connection (136; 188) for a suction flow conduit.
2. Separator device in accordance with claim 1, characterized in that the at least one pin-shaped engagement element (160; 186) is located on the lid (132; 170) in the form of a tab.
3. Separator device in accordance with claim 1 or 2, characterized in that upon a release movement of the lid (132; 170) when fixed to the receiving basket (126; 126'), the at least one pin-shaped engagement element (160; 186) is moved in the receiving space (130).
4. Separator device in accordance with any one of the preceding claims, characterized in that the at least one engagement element (160; 186) is of wedge-shaped and/or multiple-pronged configuration.
5. Separator device in accordance with any one of the preceding claims, characterized in that the lid (132; 170) has an underside (162; 184) which, when the lid (132; 170) is closed, faces towards the receiving space (130), and in that the at least one pin-shaped engagement element (160; 186) is located on said underside (162; 184) in a crosswise orientation with respect thereto.
6. Separator device in accordance with any one of the preceding claims, characterized in that the receiving basket (126; 126') is configured as a grid basket, and in particular in that a mesh structure (129) is arranged at openings of the grid basket.
7. Separator device in accordance with any one of the preceding claims, characterized in that the lid (132; 170) is completely releasable from the receiving basket (126; 126').
8. Separator device in accordance with any one of the preceding claims, characterized in that the lid (132) is located on the receiving basket (126) as a hinged lid, and in particular in that the lid (132) has a central axis (164) or a central plane (166), and in that the at least one pin-shaped engagement element (160) is arranged between the central axis (164) or the central plane (166) and a hinged joint (158) and, in particular, is located on the lid (132) at a position closer to the hinged joint (158) than to the central axis (164) or the central plane (166).
9. Separator device in accordance with any one of the preceding claims, characterized in that the lid (170) is configured as a rotary lid, and in particular in that the lid (170) is fixable to the receiving basket (126') via a bayonet device, and in particular in that the at least one pin-shaped engagement element (186) moves on an orbital path when the lid (170) is rotated, and in particular characterized by at least two opposed pin-shaped engagement elements (186).
10. Separator device in accordance with any one of the preceding claims, characterized in that the at least one pin-shaped engagement element (160; 186) is of rigid configuration.
11. Separator device in accordance with any one of the preceding claims, characterized by being configured as a filter separator device, wherein a filter device (124) for dust is arranged downstream of the pre-separator (122), and in particular in that the filter device (124) for dust is configured as a cartridge filter (192), and in particular characterized by a filter box (116) which comprises the filter separator device and is handleable as a unit, and in particular characterized in that the filter box (116) has a connection (120) for operative fluid communication with a suction unit (32).
12. Vacuum cleaner, provided with a separator device (30) in accordance with any one of the preceding claims.
13. Vacuum cleaner in accordance with claim 12, characterized by a housing (12) which has the separator device (30) arranged therein.
14. Vacuum cleaner in accordance with claim 13, characterized in that the housing (12) has arranged therein a removable filter box (116) comprising the separator device (30).
15. Vacuum cleaner in accordance with claim 13 or 14, characterized in that the housing (12) has an openable door (112), wherein the filter box (116) is removable from the housing (12) via a door opening (114).

Images