EP2510860A2 - Dust extraction unit with an intermediate coupling - Google Patents

Abstract

The unit (5) has a wall that partly encloses the dust separation unit, where the wall comprises an intermediate clutch (12) with a drive counter-coupling i.e. tooth clutch, accessible from exterior of the dust separation unit and an output counter-coupling accessible from interior of the dust separation unit. The intermediate clutch covers an aperture in a wall of the dust separation unit and comprises a circulating edge (13) that is supported in an annular groove of the wall of the dust separation unit. Independent claims are also included for the following: (1) a system comprising a filter (2) a vacuum cleaner comprising a cleaning motor.

Description

Background of the invention

The present invention relates to a Staubabscheideeinheit for a vacuum cleaner. It also relates to a system of a Staubabscheideeinheit and a filter. Finally, the invention relates to a vacuum cleaner with a Staubabscheideeinheit.

Background of the invention

The document US 2007/0017064 A1 discloses a vacuum cleaner with a Staubabscheideeinheit. The vacuum cleaner comprises a gear transmission comprising a first gear driven by another gear of the gear transmission. The third cover element of the wall of the Staubabscheideeinheit comprises an annular groove in which a peripheral edge of the first gear is mounted.

The document US 2008/0295466 A1 shows a cyclone of a vacuum cleaner. It includes a filter brush part. A ring member surrounds a support shaft which carries a filter so that it rotates with the support shaft. A worm wheel is mounted on the support shaft and is operated by a worm gear.

The publication DE 10 2009 035 602 A1 discloses a vacuum cleaner with a Staubabscheideeinheit into which a cylindrical cartridge filter is housed to separate dust from entering the Staubabscheideeinheit air. Inside the filter, a cleaner is arranged, which can be driven by an electric motor rotating. When the cleaner is rotated, scrapers will contact the filter to remove any adhering dust.

Next is from the international disclosure WO 2007/141712 a dust filter for filtering dust from an air stream, said dust filter having a filter membrane and a scraper. The scraper is arranged inside the cylindrically shaped filter and can be rotated by a motor in rotation. The filter membrane of the filter is shaped as a folded circumferential cylinder wall. The scraper is driven by a motor disposed outside the filter by means of a shaft piercing a cap of the filter.

The international publication WO 2007/065992 A1 discloses a dust collection unit having a cylindrical cartridge filter, wherein inside the filter are provided by a shaft driven loading elements which, when rotated by the shaft, can set the filter in motion for cleaning. The shaft is mounted on a lid of the filter, which also has a gear which can be driven through an opening in the Staubabscheideeinheit from a motor located outside the Staubabscheideeinheit gear, to make the lid and thus the shaft with the loading elements in rotation.

The patent US 2007/0017064 A1 discloses a vacuum cleaner with a Staubabscheideeinheit in which a rotatable filter is mounted. By means of a coupling and counter-coupling, the filter can be set in rotation by a stepping motor mounted in a part above the dust-collecting unit. Due to the coupling, the stepping motor can be separated from the dust collecting unit.

From the publication DE 103 03 678 A1 For example, there is known a dust collector for a vacuum cleaner which includes a grid cleaner for automatically removing fine dusts. The grid cleaner includes a grid rotator for rotating the grid when the vacuum cleaner is in operation. For this purpose, the grid cleaning device is equipped with a toothed wheel, which can be driven by a further gear from a arranged outside the grid-cleaning device worm gear.

The problem underlying the invention

The invention has for its object to provide an improved Staubabscheideeinheit for a vacuum cleaner. Furthermore, an improved combination of a Staubabscheideeinheit and a filter and an improved vacuum cleaner to be provided with such Staubabscheideeinheit. In particular, the Staubabscheideeinheit to be equipped with a means for driving a arranged in the Staubabscheideeinheit device, for example, a cleaner for a filter, driven by a arranged outside the Staubabscheideeinheit drive. The Staubabscheideeinheit should be simple and inexpensive to manufacture and easy to clean.

Inventive solution

The reference numbers in all claims have no limiting effect, but are only intended to improve their readability.

The solution of the object is achieved by a Staubabscheideeinheit with the features of claim 1. It also succeeds with a system of a Staubabscheideeinheit and a filter with the features of claim 11. Finally, it succeeds with vacuum cleaners with the features of claims 13 and 15. By The intermediate coupling according to the invention with its drive counter-coupling and its driven counter-coupling can drive a drive arranged outside the dust-collecting unit, for example a motor, a device located in the dust-collecting unit, for example a filter cleaner. Characterized in that drive counter coupling and driven counter coupling form a firmly connected unit, and the edge of the input and output counter coupling of the intermediate clutch in the radial direction surrounds disk-shaped and / or the drive and the driven counter-coupling of the intermediate coupling are formed together as a general hollow cylinder, and this hollow cylinder of the Center of the rest, moreover, formed as a flat disc substantially intermediate disc projecting in a direction perpendicular to this disc, the same component acts both as an input and as an output counter coupling. That is, looking at the intermediate clutch along the clutch axis, the counter drive clutch and output counter-clutch are within the circumference of the rim. This allows a particularly simple and inexpensive construction of Staubabscheideeinheit.

A vacuum cleaner is understood to mean an electrical energy powered device for receiving dust, including both mains operated and battery powered devices. A vacuum cleaner may include, for example, a motor-blower unit for generating a suction air flow, a nozzle for collecting dust, a suction air guide for guiding the suction air flow, a dust collecting unit, and a filter. A Staubabscheideeinheit is a device that removes dust-laden suction air from the dust. A dust collection unit may include a filter to retain the dust from the dust-laden air. The filter can be designed, for example, as an exchangeable cartridge filter.

A clutch according to the present invention, in contrast to a transmission, a device which transmits a torque unchanged. For the purposes of the present invention, a counter drive coupling is a coupling which, when coupled to a drive coupling, for example the drive coupling of a motor, can be set in motion by movement of the drive coupling itself. Correspondingly, an output counter-coupling is a coupling which, by virtue of its movement, can set an output coupling coupled to it in motion.

Preferred embodiment of the invention

Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims.

In a preferred embodiment of the invention, the intermediate coupling covers an opening in the wall of the Staubabscheideeinheit. This advantageously achievable that the intermediate coupling in addition to the passage of the action of the drive from the outside through the wall in the Staubabscheideeinheit simultaneously acts as an optical aperture, which may otherwise concealed as visually distracting opening. The covered opening is preferably an opening through which the drive arranged within the dust-separating unit drives the device arranged by means of the intermediate coupling of the drive arranged outside the dust-separating unit. In other words, the intermediate coupling also serves to drive through the wall and the cover of the required opening in the wall.

The drive counter-coupling and the driven counter-coupling preferably form a firmly connected unit. The preferred drive counter-coupling is rotated by the rotational movement of a coupled to them drive clutch itself in rotation. The preferred output counter coupling offset by their rotational movement coupled to them output clutch in rotary motion. Preferably, the axis of rotation of the drive counter-coupling and the axis of rotation of the output counter-coupling of the intermediate coupling coincide.

The wall preferably comprises a jacket and a bottom, so that the preferred Staubabscheideeinrichtung is generally cup-shaped. The opening is located advantageously in the bottom of the Staubabscheideeinheit. The intermediate coupling preferably completely covers the opening in the wall of the dust collecting unit. But they are Embodiments of the invention conceivable in which it covers the opening only partially. In addition, the intermediate coupling may itself have windows, as will be explained in more detail below.

The preferred edge preferably has a circular circumference.

The groove, in which the edge is guided, preferably surrounds the opening in the wall of the Staubabscheideeinheit. Preferably, the groove is open to the opening. The preferred groove is circular. It may be formed, for example, by the gap between the wall and a guide ring attached thereto. The guide ring is preferably welded or glued. Preferably, the entire circumference of the edge runs in the groove. Thus, advantageously, the intermediate coupling can be safely and yet freely rotatably arranged on the Staubabscheideeinheit. However, embodiments of the invention are conceivable in which only parts of the circumference of the edge run in the groove. The latter will be the case in particular if the circumference of the edge or the groove is not circular.

In a preferred embodiment of the intermediate coupling of the Staubabscheideeinheit the peripheral edge is disc-shaped. The preferred edge has at least one window. Particularly preferably, a plurality of windows are provided. The window (s) are preferably located in the radial direction between the periphery of the rim and the input and output counter-coupling. In other words, looking at the intermediate clutch along the clutch axle, the window or windows are located in a region between the circumference of the edge of the intermediate clutch and an inner region in which the input and output counter-clutches are arranged. By or the window is advantageously achieved that, for example, when cleaning the Staubabscheideeinheit with water, this water can easily drain. Thus, it can be advantageously prevented that after cleaning water in the Staubabscheideeinheit stops and impairs the function of Staubabscheideeinheit.

A preferred drive counter coupling is a gear coupling. A preferred output counter coupling is a gear coupling. In a preferred intermediate clutch, the drive counter-coupling and / or the driven counter-coupling are formed at least in sections generally cylindrical. Particularly preferably, both the drive counter-coupling and the output counter-coupling are formed at least in sections generally cylindrical. Here is the profile of the general cylinder, so the Cross-section through the lateral surface perpendicular to the axis of rotation, designed so that a secure, rotationally fixed connection between the counter-coupling and a corresponding coupling is possible. A preferred profile is star-shaped. The preferred star-shaped profile has three, four, six, eight, ten or more tips. The tips are preferably evenly spaced. In this case, the rotation of the profile by the angular distance of two peaks, the profile preferably on itself. Suitable profiles are for example in US 3,584,667 and DE 42 062 22 C2 disclosed. The profile of the interlocking body concerning disclosure of these two documents is incorporated herein by reference. Preferably, the outer regions (peaks) and the inner region, where two legs of the star meet, are rounded. Preferably, the profile is a multi-round shape. Suitable profiles are, for example, the inner or outer Torx® profiles of the intermeshing Torx® screws and keys from Camcar, Rockford, Illinois.

Of course, other versions of the counter-couplings are conceivable. Thus, in one embodiment of the invention, the drive counter-coupling and / or the counter-output coupling may be in the form of a dog clutch, e.g. be designed as a slotted or cross-slotted clutch, each of which can engage in a trained as a corresponding dog clutch drive and / or output clutch. Preferably, the drive counter-coupling is designed so that it creates a torsionally rigid connection together with the drive coupling. Preferably, the output counter-coupling is designed so that it creates a torsionally rigid connection together with the output coupling.

In a cylindrical coupling design, the cylinder of the input or output counter coupling can be designed both as an inner and as an outer cylinder. In an inner cylinder this is formed as a generally cylindrical cavity, wherein the profile of the cross section through the inner circumferential surface of the cylinder is perpendicular to the axis of rotation of the coupling. Conversely, in the case of an outer cylinder, the cylinder is designed as a generally cylindrical body and the profile of the cross section through the outer surface of this body is perpendicular to the axis of rotation of the counter-coupling.

In a preferred embodiment of the intermediate clutch of Staubabscheideeinheit an element of the elements drive counter-coupling and driven counter-coupling is designed as a general inner cylinder and the other as a general outer cylinder. The interior of the hollow cylinder preferably forms the one and the exterior of the hollow cylinder, the other element from the group of elements drive and driven counter coupling. This allows a particularly simple construction of the intermediate coupling, beyond also can be particularly material-saving. Preferably, the hollow cylinder is closed on one side, particularly preferably on the side remote from the edge of the intermediate coupling.

A preferred intermediate coupling is formed in one piece, particularly preferably of a uniform material. It can be produced for example by deep drawing from a plastic disc or by injection molding. A preferred intermediate coupling is made of plastic, for example POM. The preferred intermediate coupling has a substantially continuous uniform wall thickness of between 0.5 and 2 mm, for example about 1 mm.

The preferred Staubabscheideeinheit is designed as a dust collector. That is, dust deposited in operation in the dust collecting unit collects in the dust collecting unit. For this purpose, a part of the Staubabscheideeinheit be designed as a dust container.

In the preferred Staubabscheideeinheit a filter is used to retain dust from the dust-laden, entering the Staubabscheideeinheit air. The preferred is filter is cylindrical, wherein the filter material forms the cylinder jacket. Particularly preferably, the filter material is folded accordion-like along the longitudinal axis of the filter.

The preferred filter has a cleaner for performing a mechanical cleaning of the filter. By means of the cleaner, the filter can be freed from adhering dirt particles. For this purpose, the cleaner is preferably rotatably mounted on a shaft. Furthermore, the preferred cleaner has one or more paddles. When turning the shaft and thus the paddle (s), the paddles of the cleaner on the inside of the filter to the filter material and can thus solve dirt particles. In a preferred embodiment of the invention, when the filter is inserted into the dust removal unit, the cleaner is coupled to the output counter coupling of the intermediate clutch for driving via an output coupling of the cleaner. Thereby, the cleaner can be driven via the intermediate coupling, when the filter is inserted into the Staubabscheideeinheit, preferably rotating. Preferably, the output and the output counter-coupling for this purpose are rotary and counter-rotary couplings.

In a preferred vacuum cleaner, the Staubabscheideeinheit is insertable into a dust chamber of the vacuum cleaner. For emptying, the Staubabscheideeinheit preferably from be removed from the dust chamber. The preferred vacuum cleaner has a cleaning motor, which is equipped with a drive coupling. Preferably, the drive coupling is arranged so that it is coupled with inserted into the dust chamber Staubabscheideeinheit to the drive counter-coupling of the intermediate coupling. In this way, the cleaning motor can drive the intermediate clutch and this in turn with the filter inserted, the cleaner of the filter.

The present invention makes it possible with simple constructive and inexpensive means to form a Staubabscheideeinheit so that a arranged outside the Staubabscheideeinheit drive, for example, a cleaning motor, a device located in the Staubabscheideeinheit, for example, a cleaner can drive. A required opening in the wall of Staubabscheideeinheit can be covered by the invention aesthetically satisfactory.

Brief description of the drawings

Further advantageous embodiments will be described in more detail below with reference to an embodiment shown in the drawings, to which the invention is not limited.

Fig. 1

einen Staubsauger mit Staubkammer zur Aufnahme einer Staubsammeleinheit;

Fig. 2

eine perspektivische Querschnittsansicht der Staubabscheideeinheit mit eingesetztem Filter;

Fig. 3

eine perspektivische Explosionszeichnung eines Details der Staubabscheideeinheit mit Zwischenlager sowie korrespondierender Antriebs- und Antriebskupplung und einem Abreinigungsmotor; und

Fig. 4

eine perspektivische Ansicht der erfindungsgemäßen Zwischenkupplung mit korrespondierender Antriebs- und Abtriebskupplung.

They show schematically:

Fig. 1

a vacuum cleaner with a dust chamber for receiving a dust collecting unit;

Fig. 2

a perspective cross-sectional view of the Staubabscheideeinheit with inserted filter;

Fig. 3

an exploded perspective view of a detail of Staubabscheideeinheit with intermediate storage and corresponding drive and drive clutch and a cleaning motor; and

Fig. 4

a perspective view of the intermediate coupling according to the invention with corresponding input and output clutch.

Detailed description based on an embodiment

In the following description of a preferred embodiment of the present invention, like reference characters designate like or similar components.

In Fig. 1 a vacuum cleaner 1 with a motor-blower unit 2 for generating a suction air stream 3 is shown. The vacuum cleaner 1 has a dust chamber 4 into which a Staubabscheideeinheit 5 (in Fig. 1 not shown) can be recorded. Next, the vacuum cleaner 1, a nozzle, not shown, for receiving dust and a suction air also not shown for guiding the Saugluftstroms from the nozzle to Staubabscheideeinheit 5. The Staubabscheideeinheit 5 is upstream of the motor-blower unit 2 of the vacuum cleaner 1 with respect to the direction of the suction air stream 3. It serves to separate the dust from the dust-laden suction air of the suction air flow. For this purpose, the Staubabscheideeinheit 5, as shown in Fig. 2 shown, inter alia, a filter 6, which can retain dust particles from the dust-laden suction air.

The filter 6 can be removed from the Staubabscheideeinheit 5, in particular to be able to replace it. The Staubabscheideeinheit 5 also collects de separated from the suction dust. Dust, which is retained by the filter 6, is deposited, above all, in the filter dust collecting chamber 7 of the dust separation unit 5. Further, the Staubabscheideeinheit 5 is designed as an eddy current separator. The thereby separated dust collects mainly in the cyclone collecting chamber 8. The Staubabscheideeinheit 5 can be removed for emptying from the dust chamber of the vacuum cleaner and used after emptying back into this.

The Staubabscheideeinheit 5 has a wall enclosing it, which comprises in particular a jacket part 9 and a bottom part 10. In the bottom part 10 is an opening in which the intermediate coupling 12 is seated.

The intermediate coupling 12 has, as in Fig. 3 best seen, a flat, disc-shaped edge 13, which is guided in a, surrounding the opening groove of the Staubabscheideeinheit. The groove is open to the opening and thus to the intermediate coupling 12 and is formed by a gap between the bottom part 10 of the wall of the Staubabscheideeinheit 5 and a guide ring 14 welded thereto.

As in Fig. 3 and Fig. 4 To recognize particularly well from the plane of the edge 13 of the intermediate piece 12, a hollow cylinder 22, which at the same time the drive counter-coupling 15 and the output counter coupling 16 forms. More specifically, the interior of the hollow cylinder 22 constitutes the drive counter-coupling 15 and the exterior the driven counter-coupling 16. The hollow cylinder 22 itself has a star-shaped profile, similar to a Torx® profile. The hollow cylinder 22 is closed on the side facing away from the edge 13 of the intermediate coupling 12 side 23. On the also in Fig. 4 Dargestellen drive coupling 17 facing side of the inside of the hollow cylinder 22 and on the output clutch 19 facing outside of the hollow cylinder 22 are inlet slopes 24, 25 are provided to facilitate coupling of the drive 17 and output coupling 19. For this purpose, drive and output coupling 19 19 are provided at their the intermediate coupling 12 facing sides with such inlet slopes 26, 27.

The drive coupling 17 has the profile of a star-shaped outer cylinder 18 in the coupling region and can engage in the interior of the hollow cylinder of the intermediate coupling 12 to produce a rotationally fixed connection. The output clutch 19 is an inner cylinder 20, which also has a star-shaped profile and can engage in the output counter-coupling 16 of the intermediate coupling to produce a rotationally fixed connection. The disc-shaped edge 13 of the intermediate coupling 12 has numerous regularly spaced windows (one of which is exemplified by 21) which are particularly useful for draining or dropping water or dirt when cleaning the dust collecting unit 5.

The filter 6 of the Staubabscheideeinheit is, as now back in Fig. 2 to see a cylindrical cartridge filter in which the filter material 28 forms the cylinder jacket. To increase the filter surface, the filter material is accordion-like folded over the entire circumference of the shell. The filter 6 is equipped with a cleaner 29, which has a shaft 30 running along the cylinder axis, on which radially projecting paddles 31, 32 are arranged. The paddles 31, 32 can engage on the inside of the filter 6 to the filter material 28 when the cleaner 29 is rotated by rotating the shaft 30 in rotation. As a result, dust adhering to the outside of the jacket on the filter 6 can be cleaned off and fall into the filter dust collecting chamber 7.

Like also out Fig. 2 can be seen, the cleaner 29 is driven by means of the intermediate coupling 12 by a cleaning motor 33 which is mounted outside of the Staubabscheideeinheit 5. This is, as again better in the exploded view of Fig. 3 can be seen, the shaft 34 of the motor 33 is provided with the drive coupling 17 which engages in the drive counter-coupling 15 formed on the interior of the hollow cylinder 22 of the intermediate piece 12. On the output side, the output counter coupling engages 25 of the intermediate piece 12 in the output coupling 19 a. The output clutch 19 is, as now back in Fig. 2 seen attached to the shaft 30 of Abreinigers 29. In this way, the rotation of the shaft 34 of the cleaning motor 33 can put the shaft 30 of the cleaner 29 in a rotation about the cylinder axis of the filter 6. These include the axis of the filter, the axes of the couplings and the motor axis together.

When the Staubabscheideeinheit 5 is removed from the dust chamber 4 of the vacuum cleaner 1, the drive clutch 17 is separated from the drive counter-coupling 15. In the same way, the output clutch 19 is disconnected from the output counter-clutch 16 when the filter 6 is taken out of the dust collecting unit 5.

The present invention makes it possible with simple constructive and cost-effective means to form a Staubabscheideeinheit 5 so that a cleaning unit 30 disposed outside of the Staubabscheideeinheit 5 can drive a befindlicher in the Staubabscheideeinheit 5 Abreiniger 29. A required opening in the wall of Staubabscheideeinheit 5 can be covered by the invention aesthetically satisfactory.

The features disclosed in the foregoing description, the claims and the drawings may be of importance both individually and in any combination for the realization of the invention in its various forms.

LIST OF REFERENCE NUMBERS

1

vacuum cleaner

2

Motor-fan unit

3

suction air

4

dust chamber

5

Staubabscheideeinheit

6

filter

7

Filter dust collection chamber

8th

Cyclone dust collection chamber

9

Manel part of the wall

10

Bottom part of the wall

12

between clutch

13

Edge of the intermediate coupling

14

guide ring

15

Drive counter coupling

16

Driven counter-coupling

17

drive coupling

18

Outer cylinder of the drive coupling

19

output coupling

20

Inner cylinder of the output coupling

21

Window of the intermediate coupling

22

hollow cylinder

23

Closed side of the hollow cylinder

24

Inlet slopes of the drive counter coupling

25

Inlet slopes of the output counter coupling

26

Inlet slopes of the drive coupling

27

Inlet slopes of the output coupling

28

filter material

29

Abreiniger

30

Wave of the cleaner

31

Paddle of the cleaner

32

Paddle of the cleaner

33

cleaning motor

34

Shaft of the cleaning motor

Claims (15)

A dust collecting unit (5) for a vacuum cleaner (1), the dust collecting unit (5) having a wall at least partially enclosing the dust collecting unit (5), and the wall of the dust collecting unit (5) having an intermediate coupling (12) with one from the outside of the dust collecting unit (5) has an accessible drive counter-coupling (15) and an output counter-coupling (16) accessible from the interior of the dust-collecting unit (5), the intermediate coupling (12) having a peripheral edge (13) which is disposed in an annular groove of the wall of the dust-collecting unit (5). is mounted, characterized in that the edge (13) surrounds the drive (15) and driven counter-coupling (16) of the intermediate clutch (12) disc-shaped in the radial direction and / or the drive (15) and the driven counter-coupling (16) of the intermediate clutch (12) are formed together as a general hollow cylinder (11), and this hollow cylinder (22) from the middle of the rest substantially as a flat S cheibe formed intermediate coupling (12) protrudes in a direction perpendicular to this disc. Staubabscheideeinheit (5) according to claim 1, characterized in that the intermediate coupling (12) covers an opening in the wall of the Staubabscheideeinheit (5). Staubabscheideeinheit (5) according to any one of the preceding claims, characterized in that the peripheral edge (13) is disc-shaped and has at least one window (21). Staubabscheideeinheit (5) according to one of the preceding claims, characterized in that the drive counter-coupling (15) and / or the output counter-coupling (16) is designed as a toothed coupling. Staubabscheideeinheit (5) according to any one of the preceding claims, characterized in that the drive counter-coupling (15) and / or the output counter-coupling (16) is formed generally cylindrical. Staubabscheideeinheit (5) according to claim 5, characterized in that one of the two elements of the group drive counter-coupling (15) or the driven counter-coupling (16) is designed as a general inner cylinder and the other as a general outer cylinder. Staubabscheideeinheit (5) according to claim 6, characterized in that the interior of the hollow cylinder (22) forms the one and the exterior of the hollow cylinder (22) the other element from the group of drive (15) and driven counter coupling (16). Staubabscheideeinheit (5) according to one of the preceding claims, characterized in that the hollow cylinder is closed on one side. Staubabscheideeinheit (5) according to any one of the preceding claims, characterized in that the intermediate coupling (12) is integrally formed. Staubabscheideeinheit (5) according to one of claims 1 to 9, characterized in that it is designed as a bar collecting container. System comprising a dust separation unit (5) according to one of the preceding claims and a filter (6) which can be inserted into the dust separation unit (5). System according to claim 11, characterized in that the filter (6) has a cleaner which is coupled to the driven dust coupling (16) of the intermediate coupling (12) when driven into the Staubabscheideeinheit (5) filter for driving via an output coupling (19). Vacuum cleaner (1) with a Staubabscheideeinheit according to one of claims 1 to 9 or a system of a Staubabscheideeinheit (5) and a filter (6) according to claim 10 or 11, characterized in that the vacuum cleaner (1) has a dust chamber into which the Staubabscheideeinheit (5) can be used. Vacuum cleaner (1) according to claim 13, characterized in that the vacuum cleaner (1) identifies a cleaning motor (33) and the cleaning motor (30) is coupled with the Staubabscheideeinheit (5) via a drive coupling (17) to the drive counter coupling (15). Vacuum cleaner having a dust separation unit according to one of claims 1 to 10 or a system consisting of a dust separation unit (5) and a filter (6) according to claim 10 or 11, characterized in that the drive coupling (17) is separated from the drive counter coupling (15), when the Staubabscheideeinheit (5) from the dust chamber (4) of the vacuum cleaner (1) is removed.

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