EP2698091B1 - Fine dust collecting body for a vacuum cleaner, and vacuum cleaner comprising such a fine dust collecting body, and method for operating such a vacuum cleaner - Google Patents

Description

The present invention relates in the first instance to a particulate matter collecting device for a vacuum cleaner which functions as a particulate matter filter unit, in particular a so-called bagless vacuum cleaner. Such a particulate matter collecting device usually has a fine dust filter as the filter medium. The fine dust filter can be detachably combined with the particulate matter collecting element, so that in this respect the invention relates either to a particulate matter collecting element with a particulate matter filter received by the particulate matter collecting device or to a particulate matter filter which can be absorbed by the particulate matter collecting element. The invention further relates to a vacuum cleaner with such a particulate matter collecting device and a method for operating such a vacuum cleaner.

Bagless vacuum cleaners include, in addition to a so-called pre-separator, which is usually designed as a so-called cyclone (centrifugal separator), also a fine dust filter. The fine dust filter can be arranged within the pre-separator or can also be connected downstream of the pre-separator. Both solutions have the problem that the fine dust filter slowly fills with fine dust in the course of the suction, so that at regular intervals a filter regeneration is necessary because otherwise the vacuum provided by the vacuum cleaner steadily decreases. For the regeneration of the fine dust filter, it is often necessary that the fine dust filter is washed. However, frequent washing adversely affects the characteristics of the filter medium, especially when filter regeneration is or must be performed at very short intervals. In any case, the fine dust filter must be replaced after a certain period of use, which may well be a few years. However, this is in contrast to the philosophy pursued with bagless vacuum cleaners, which suggests a consumption freedom in bagless vacuum cleaners.

The pamphlets DE 10 2004 024 888 A1 and EP 1 181 886 A2 each disclose a particulate matter collecting means for a bagless vacuum cleaner with a particulate matter filter received by the particulate matter collecting means. The disadvantage here is in each case the limited absorption capacity of the fine dust filter as a result of which it can come to a clogging of the fine dust filter in the cleaning operation. The invention thus presents the problem that with previous bagless vacuum cleaners the local fine dust filter loses in use steadily on filter performance and thus comparatively frequently, certainly often compared to the device life cycle of the bagless vacuum cleaner, must be replaced.

According to the invention this problem is solved by a particulate matter collecting device with the features of claim 1. In this case, in a particulate matter collecting device for a bagless vacuum cleaner with a filter medium accommodated or receivable by the particulate matter collecting device and functioning as a fine dust filter, it is provided that the particulate matter collecting device has a sedimentation vessel for particulate matter below a position of the particulate matter filter.

By the particulate matter collecting means has a sedimentation vessel, this acts as an additional particulate matter storage. In these, the particulate matter trapped in the fine dust filter can sediment. By arranging the sedimentation vessel below a position of the fine dust filter, the sedimentation of the fine dust can take place under the influence of gravity. The particulate matter collecting element is preferably a particulate matter filter charged from the inside.

Advantageous embodiments and further developments of the invention will become apparent from the following subclaims. Here used backlinks indicate the further development of the subject matter of the main claim by the features of the respective subclaim. They should not be construed as a waiver of obtaining independent, objective protection for the feature combinations of the dependent claims. Furthermore, with a view to an interpretation of the claims in a closer specification of a feature in a subordinate claim, it is to be assumed that such a restriction does not exist in the respective preceding claims.

In one embodiment of the particulate matter collecting device is provided that this one sometimes in the technical terminology also referred to as air supply dust supply (dust supply) and that a position of the sedimentation is opposite to the dust supply. The sedimentation vessel is thus arranged in a flow-calmed zone of the particulate matter collecting element. In addition, a direction of flow originating from the dust feed results in the direction of the sedimentation vessel, which runs parallel to an orientation of a filter medium or the like, wherein the sedimentation vessel is positioned perpendicular to such filter media and the flow direction.

In a particular embodiment of the particulate matter collecting device, it is provided that the sedimentation vessel is closed over a large area and has a sedimentation opening facing the dust supply in the mounted state. The large area closed Sedimentation vessel with a sedimentation, especially just a sedimentation, allows the absorption of particulate matter by sedimentation, which is prevented by the otherwise closed design of sedimentation that particulate matter that has already entered the sedimentation, undesirable in operation, for example, due to turbulence and the like, exits again and settles on the surface of the fine dust filter. In a particular embodiment of this variant of the particulate matter collecting means, provision may be made for the sedimentation vessel to have an additional dust removal opening. Otherwise, the sedimentation opening comes as a dust extraction opening into consideration.

If the sedimentation vessel has individual or several guide devices pointing in the direction of the sedimentation opening, the uptake of fine dust in the sedimentation vessel is facilitated. In the case of the sedimentation vessel, which is open only in the area of the sedimentation opening and otherwise closed, its surface, which faces the interior volume of the particulate matter collecting organ, acts as a collecting surface for sinking particulate matter. By the sedimentation vessel has on or in this surface single or more pointing in the direction of the sedimentation guide, the sunken and deposited on the surface of the sedimentation fine dust is directed towards the sedimentation. In this case, a profiling of the surface of the sedimentation vessel which is suitable for directing sunken particulate matter under the influence of gravity in the direction of the sedimentation opening, ie any design which gives the surface of the sedimentation vessel a funnel effect in the direction of the sedimentation opening, can be considered as a guide device.

If the sedimentation vessel is detachably connectable to the particulate matter collecting means, simple conditions arise with regard to the removal of the sedimentation vessel required from time to time in order to empty its contents.

If in the particulate matter collecting the fine dust filter forms a surface filter, it is ensured that the intake of particulate matter does not take place in the depth of the respective filter medium, so that the particulate matter filter by mechanical influence, such as shaking or the like, can be regenerated by the particulate matter collected there drops. In particular embodiments of the particulate matter collecting device, it is provided that a filter medium which has a filter membrane and / or that the filter medium is pleated and / or that the filter medium is washable acts as a fine dust filter.

The above problem is also solved with a bagless vacuum cleaner having a particulate matter collecting member as described here and below. A particular embodiment of such a vacuum cleaner is characterized in that the Particulate matter collecting device and the sedimentation vessel are independently removable on the vacuum cleaner. The sedimentation vessel must be emptied from time to time by removing it from the vacuum cleaner or from the vacuum cleaner. If the sedimentation vessel is removed from the vacuum cleaner independently of the particulate matter collection element, the user does not have to handle the particulate matter collecting device at the same time. When moving the particulate matter collecting point, particulate matter could be released from its fine dust filter, so that the user would come into contact with the particulate matter, which of course is undesirable.

In a particular embodiment of the vacuum cleaner with a particulate matter collection of the type described here and below, it is provided that the vacuum cleaner has a the dust collecting means associated and in operation vibrations of the particulate matter collecting device triggering vibrator, in particular a fine particulate collecting organ associated and in operation vibrations of the particulate matter collecting engine triggering engine. The engine or any other vibration inducing unit (vibrator), for example, a pulsed driven electromagnet with an associated and arranged, for example, on the particulate matter collecting anchor, is a vibrator and, accordingly, a means to act mechanically on the particulate filter.

In a further embodiment, it is provided that a cable reel unit for a connecting cable is designed such that, when the connecting cable is pulled out or rolled in, a vibrating device acts on the fine dust collecting element. To initiate this process, the vibrator can be in operative connection with a normally provided in a vacuum cleaner cable drum (feed drum). Whenever the supply line of the vacuum cleaner is rolled out or pulled in, a plunger driven by an eccentric preferably acts on the fine dust collecting element and thus also acts as a vibrating device.

Another embodiment provides that a roller is designed so that upon rotation of the roller a vibrator acts on the particulate matter collecting organ. When using the vacuum cleaner, in particular when rolling the vacuum cleaner over a substrate, the rotation of the roller acts on a, preferably via an eccentric driven ram which acts on the particulate matter collecting means, whereby also a vibrating device is realized.

In a further embodiment, vibrations can also be generated by negative pressure fluctuations that occur when the dust supply is closed in a pulsed manner and opened again, for example by a flap or the like.

Hereinafter, any unit which generates vibrations or otherwise acts on the particulate matter filter is referred to as a vibrator.

In such an action fine dust, which has settled on the surface of the fine dust filter, dissolved and can fall under the influence of gravity on the bottom of the particulate matter collecting body, which is formed here by the sedimentation vessel.

The engine or a functionally equivalent unit (vibrator) thus causes a regeneration of the particulate matter filter, so that its particulate matter absorption capacity is restored to the original state or at least significantly increased compared to the dust-laden situation. Such a shaking device relieves the user of the need to regenerate the particulate matter collecting organ itself from time to time, for example by knocking or the like.

In the case of the motor as a vibrating device, this can be activated by the user, for example by actuating a control element provided for this purpose, when the user detects a decreasing suction power. In a particular embodiment of the vacuum cleaner is provided that the motor is automatically activated at predetermined or predetermined times for a predetermined or predetermined duration. The times and the activation duration can be stored in a control unit of the vacuum cleaner and a memory included. The activation times may be operating-time-dependent and / or suction-dependent. With regard to the duration of activation, too, a dynamic adaptation to the use situation of the vacuum cleaner comes into consideration, for example such that the activation duration depends on the suction power, namely in particular in the form of a reverse proportionality, so that the activation duration is longer, the lower one for the Suction power is sensed value.

The achievable with the invention and its embodiments advantages in addition to extending a life of the particulate matter filter, especially in that sedimented particulate matter remains in the sedimentation vessel and does not get back into the respective filter medium of the particulate matter filter. The lifetime of the particulate matter filter is thus comparable to the life of the bagless vacuum cleaner (for the particulate matter filter in a particulate matter collection device as described here, the term is justified as "Lifetime Filter") and overall results in a better match with a bagless vacuum cleaner underlying philosophy, namely, that additional purchases of consumables during device life are not required. The extended life of the fine dust filter results mainly from the separation of filtration and dust storage / dust disposal by the particulate matter collecting a first Functional section with the fine dust filter and a second functional section with the Sedimentationsgefäß.

An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Corresponding objects or elements are provided in all figures with the same reference numerals. The or each embodiment is not to be understood as limiting the invention. Rather, in the context of the present disclosure, modifications and modifications are possible, for example by combining or modifying individual features described in connection with the general or specific description part as well as in the claims and / or the drawing characteristics or method steps with respect to those skilled in the art the solution of the problem can be removed and lead by combinable features to a new object or to new process steps or process steps.

Figur 1

einen beutellosen Staubsauger,

Figur 2

eine Ausführungsform eines Feinstaubsammelorgans wie hier vorgeschlagen,

Figur 3

ein mit dem Feinstaubsammelorgan kombinierbares Sedimentationsgefäß,

Figur 4

das Feinstaubsammelorgan mit dem Sedimentationsgefäß in einer Seiten- und einer Frontansicht,

Figur 5

einen beutellosen Staubsauger mit einer kabeltrommelbetriebenen Rütteleinrichtung und

Figur 6

eine alternative Ausführungsvariante des Sedimentationsgefäßes und

Figur 7

einen beutellosen Staubsauger mit einer laufrollenbetriebenen Rütteleinrichtung.

Show it

FIG. 1

a bagless vacuum cleaner,

FIG. 2

an embodiment of a particulate matter collecting device as proposed here,

FIG. 3

a sedimentation vessel combinable with the particulate matter collecting body,

FIG. 4

the particulate matter collecting device with the sedimentation vessel in a side view and a front view,

FIG. 5

a bagless vacuum cleaner with a drum driven vibrating device and

FIG. 6

an alternative embodiment of the sedimentation vessel and

FIG. 7

a bagless vacuum cleaner with a roller-operated vibrating device.

FIG. 1 shows schematically simplified a basic structure of a bagless vacuum cleaner 10 with a large dust collector 12 and a particulate matter collecting device (fine dust filter unit) 14 with a particulate filter 16. Dust that is not separated from a here designated as cyclone 18 centrifugal separator arrives in the large dust collector 12 downstream particulate matter filter 16th In such systems, the separation limit is about 1 micron, that is, smaller dust particles are trapped in the particulate matter filter 16. The regeneration of the fine dust filter 16, which has hitherto frequently been a foam mat or a foam fleece, takes place by knocking and / or washing. In another embodiment of a known in the art bagless vacuum cleaner (not shown), the fine dust filter 16 is disposed within the large dust collecting element 12. The regeneration of the fine dust filter 16 takes place by a mechanical shaking of the dust from the filter medium of the fine dust filter 16 by a vibration device arranged in the vacuum cleaner, which acts on the fine dust filter 16, and / or by washing after disassembly of the fine dust filter 16.

In both variants, the fine dust filter 16 is designed as an external filter, that is to say as a filter which can be charged with dust from the outside. Manufacturers of such vacuum cleaners recommend that the fine dust filter 16 be regenerated at regular intervals or even replaced. The recommendations sometimes go to replace the particulate matter filter 16 regularly several times a year, whereas the user expects a consumable freedom in a bagless vacuum cleaner 10 per se.

FIG. 2 shows schematically simplified one embodiment of a particulate matter collecting member 14 according to the invention. The fine dust collecting element 14 has a sedimentation vessel 20 for fine dust below a position of a filter medium acting as a fine dust filter 16. The sedimentation vessel 20, in particular edge-free, adjoins a body 22 of the particulate matter collecting element 14 and is thus positioned opposite from a dust feed (dust feed opening) 24. The sedimentation vessel 20 is closed over a large area and has a in the assembled state of the dust supply 24 facing the sedimentation opening 26. One surface of the sedimentation vessel 20 acts as the bottom of the particulate matter collecting element 14 and guide devices 28 formed in the surface of the sedimentation vessel 20 are effective for guiding particulate matter sinking in the particulate matter collecting device 14 in the direction of the sedimentation opening 26.

For automatic regeneration of the fine dust filter 16, a motor 30 is provided with an eccentric gear 32 so that the motor 30 and the eccentric gear 32 together act as a vibrating device 34. Other embodiments of a vibrator 34 are also conceivable. Some variants are briefly described below.

During operation of the motor 30 results due to the eccentric 32, a vibration of the particulate matter collecting member 14 and the therein received as a particulate matter filter 16 filter medium. Fine dust deposited on the surface of the filter medium is thus released and falls under gravity onto the bottom of the fine dust collecting element 14, ie the surface of the sedimentation vessel 20. From there, the fallen fine dust, likewise favored by the vibration, reaches the sedimentation opening 26 by means of the guide devices 28 and finally in the interior of the sedimentation vessel 20. The just described movement of sunken particulate matter in the particulate matter collecting member 14 also finds continuously in the operation of the respective bagless Vacuum cleaner 10 instead of, and that due to the system-related vibrations usually resulting during operation of the suction unit.

In the illustration in FIG. 2 It can be seen that the sedimentation vessel 20 is arranged below the dust feed 24 and thus opposite from a cyclone outlet and a so-called clean gas side. This is an arrangement of the sedimentation vessel 20 in a flow-calmed region of the particulate matter collecting element 14, so that particulate matter which has dropped onto the surface of the sedimentation vessel 20 is whirled up only to a comparatively small extent due to turbulence or the like.

FIG. 3 shows in a perspective view of the particulate matter collecting device 14 removed sedimentation vessel 20. Here, the sedimentation 26 and the guide devices 28 are particularly well visible. It is also shown that the sedimentation vessel 20 has a dust removal opening 36. In the illustrated exemplary embodiment, the sedimentation opening 26 is located centrally below a cover plane of the sedimentation vessel 20. The guide devices 28 are designed as inclined planes which terminate at the sedimentation opening 26 and thus give the surface of the sedimentation vessel 20 a funnel effect in the direction of the sedimentation opening 26.

FIG. 4 shows the particulate matter collecting member 14 according to FIG. 2 with the sedimentation vessel 20 according to FIG. 3 in a side view and a front view. Here it is again clearly recognizable that the sedimentation vessel 20 is located in a relatively flow-calmed region, so that the probability is low that already sedimented fine dust 38 is beaten back into the respective filter medium by the air flow within the fine dust collecting element 14.

The sedimentation of particulate matter 38 in the sedimentation vessel 20 takes place as follows: During operation of the bagless vacuum cleaner 10, the particulate matter collecting member 14 slowly and steadily fills up with the particulate matter passing through the large dust collecting element 12. The fine dust collects initially substantially on and / or in the respective filter medium of the particulate matter filter 16. At defined times, for example after switching on the vacuum cleaner 10, the vibrator 34 is set for example for a few seconds in operation, whereby the particulate matter collecting 14th is mixed with the sedimentation vessel 20 in vibration / vibration. The fine dust 38 lying on the filter medium dissolves and falls down onto the surface of the sedimentation vessel 20 and slides over the guide devices 28 through the sedimentation opening 26 into the sedimentation vessel 20. In order to initiate this process, the vibrating device 34 can also be used with a vacuum cleaner provided cable drum 40 (feed drum) are in operative connection, as shown in FIG. 5 is shown. Whenever the supply line of the vacuum cleaner 10 is rolled out or pulled in, a plunger driven by an eccentric 32 acts on the fine dust collecting element 14 and thus also acts as a vibrating device 34. Such a vibrating device 34 is an alternative to the one in FIG FIG. 2 vibrator 34 shown with an electric motor.

In this case, the cable drum 40 is coupled eccentrically via a movable rod to the horizontally mounted eccentric gear 32. The eccentric gear 32 in turn is loosely or firmly connected to the fine dust collecting member 14 via another rod. When rolling in or unwinding of the vacuum cleaner feed line, the fine dust collecting element 14 is thereby set in vibration. The rotational movement of the cable drum 40 is transformed into a translatory movement sequence for this purpose. The dust is thereby dropped from the fine dust filter 16 and falls into the sedimentation vessel 20 and is deposited there (sedimented particulate matter 38). This is used in a simple manner, a typical handling operation in the operation of the vacuum cleaner 10 for the regeneration of the particulate matter filter 16. The advantages of this embodiment are that the regeneration of the particulate matter filter 16 is done automatically and forcibly guided and that it is a relatively inexpensive design variant in the construction.

Another alternative solution is not to connect the above-mentioned rod between the eccentric gear 32 and particulate matter collecting member 14 fixed to the particulate matter collecting member 14, but to couple them loosely to the particulate matter collecting member 14. The rod then acts as a ram in this example.

In a further embodiment, such vibrations can be generated by negative pressure fluctuations that occur when the dust feed 24 is closed in a pulsed manner and opened again, for example by a flap or the like.

To accelerate dust removal and sedimentation, the filter medium can be designed as a membrane filter. A membrane filter usually consists of a thin, microporous layer fixed on a textile support. The membrane layer is often made of PTFE (polytetrafluoroethylene). Due to this structure, a surface filtration takes place, in which the fine dust particles do not penetrate into the depth of the filter medium, but distribute only on the surface of the filter medium. As a result, membrane filter can be easily cleaned, namely both mechanically by vibration as well as by washing or rinsing by means of a fluid, for example water.

By releasably connecting the particulate matter collecting element 14 and the sedimentation vessel 20, it is achieved that both units can be cleaned independently of one another at intervals of different lengths. The sedimentation vessel 20 is washed out or flushed out at shorter intervals compared to the filter medium. In the case of the filter medium, significantly higher cleaning intervals can now be achieved in comparison to the prior art, which considerably increases the cumulative lifetime of the filter medium.

FIG. 6 shows an alternative embodiment of the sedimentation vessel 20 in a sectional view. It can be seen that the guide device 28 has the shape of a pointed roof, so that the sedimented fine dust 38 deposits on the sides of the sedimentation vessel 20. Instead of in the embodiments according to FIG. 2 to FIG. 4 Centrally arranged sedimentation 26 now pass two slot-shaped sedimentation on the sides of the sedimentation vessel 20th

FIG. 7 shows schematically simplified one embodiment of a particulate matter collecting member 14 according to the invention. The fine dust collecting element 14 has a sedimentation vessel 20 for fine dust below a position of a filter medium acting as a fine dust filter 16. The sedimentation vessel 20, in particular edge-free, adjoins a body 22 of the particulate matter collecting element 14 and is thus positioned opposite from a dust feed (dust feed opening) 24. The sedimentation vessel 20 is closed over a large area and has a in the assembled state of the dust supply 24 facing the sedimentation opening 26. One surface of the sedimentation vessel 20 acts as the bottom of the particulate matter collecting element 14 and guide devices 28 formed in the surface of the sedimentation vessel 20 are effective for guiding particulate matter sinking in the particulate matter collecting device 14 in the direction of the sedimentation opening 26.

For automatically regenerating the fine dust filter 16, a roller 42 is provided with an eccentric 32, so that roller 42 and eccentric 32 together act as a vibrator 34. Other embodiments of a vibrator 34 are also conceivable.

When using the vacuum cleaner, so when rolling the vacuum cleaner over a substrate 44 results due to the driven by the roller 42 eccentric 32 a vibration of the particulate matter collecting member 14 and the therein received as particulate matter filter 16 filter medium. Fine particulate matter deposited on the surface of the filter medium is thus released and falls under gravity onto the bottom of the particulate matter collecting element 14, that is to say the surface of the sedimentation vessel 20. From there, the particulate matter which has fallen down also passes through the vibration Conductors 28 to the sedimentation 26 and finally into the interior of the sedimentation vessel 20. The just described movement of sunken particulate matter in the particulate matter collecting 14 also takes place continuously during operation of the respective bagless vacuum cleaner 10 due to the system-related vibrations usually occurring during operation of the suction unit ,

In the illustration in FIG. 7 It can be seen that the sedimentation vessel 20 is arranged below the dust feed 24 and thus opposite from a cyclone outlet and a so-called clean gas side. This is an arrangement of the sedimentation vessel 20 in a flow-calmed region of the particulate matter collecting element 14, so that particulate matter which has dropped onto the surface of the sedimentation vessel 20 is whirled up only to a comparatively small extent due to turbulence or the like.

Finally, some aspects of the description presented here can be briefly summarized as follows: Specified are a particulate matter collection device 14 for a bagless vacuum cleaner 10 and a bagless vacuum cleaner 10 with such a particulate matter collecting device 14, wherein the particulate matter collecting means 14 has a particulate matter filter 16 or at least for receiving such a particulate matter filter 16 is determined and below a position of the particulate matter filter 16 has a sedimentation vessel 20 for particulate matter, in which 10 particulate matter accumulates during operation of the particulate matter collecting member 14 and the vacuum cleaner and can be disposed of from time to time.

LIST OF REFERENCE NUMBERS

10

bagless vacuum cleaner

12

Large dust collection body

13

Sedimentation vessel Grobstaubsammelorgan

14

Fine dust collector / fine dust filter unit

16

Feinstaubfilter

18

cyclone

20

Sedimentation vessel Fine dust collector

22

Corpus (of the particulate matter collecting organ)

24

dust feed

26

Sedimentationsöffnung

28

guide

30

engine

32

eccentric

34

vibrating

36

Dust removal opening

38

sedimented fine dust

40

cable drum

42

caster

44

underground

Claims (15)

1. Fine-dust collection member (14) for a bagless vacuum cleaner (10) comprising a fine-dust filter (16) received by the fine-dust collection member (14), characterised in that the fine-dust collection member (14) comprises a sedimentation vessel (20) for fine dust below a position of the fine-dust filter (16), the sedimentation vessel (20) being arranged in a flow-calmed zone of the fine-dust collection member (14).
2. Fine-dust collection member (14) according to claim 1, comprising a dust inlet (24), wherein a position of the sedimentation vessel (20) is opposite the dust inlet (24).
3. Fine-dust collection member (14) according to claim 2, wherein the sedimentation vessel (20) is closed over a large area and comprises a sedimentation opening (26) which faces the dust inlet (24) when assembled.
4. Fine-dust collection member (14) according to claim 2, wherein the sedimentation vessel (20) comprises one or more guide devices (28) pointing in the direction of the sedimentation opening (26).
5. Fine-dust collection member (14) according to any of the preceding claims, wherein the sedimentation vessel (20) can be detachably connected to the fine-dust collection member (14).
6. Fine-dust collection member (14) according to any of the preceding claims, wherein the fine-dust filter (16) forms a surface filter.
7. Bagless vacuum cleaner (10) comprising a fine-dust collection member (14) according to any of the preceding claims.
8. Vacuum cleaner (10) according to claim 7, wherein the fine-dust collection member (14) and the sedimentation vessel (20) can be removed from the vacuum cleaner independently of one another.
9. Vacuum cleaner (10) according to either claim 7 or claim 8, comprising a coarse-dust collection member (12), a sedimentation vessel (13) being arranged below the position of a dust-separating device for coarse dust, characterised in that the sedimentation vessel (13) of the coarse-dust collection member (12) and the sedimentation vessel (20) of the fine-dust collection member (14) can be removed from the vacuum cleaner (10) independently of one another.
10. Vacuum cleaner (10) according to claim 7, 8 or 9, comprising a vibrating means (34) which acts on the fine-dust collection member (14).
11. Vacuum cleaner (10) according to claim 10, comprising a motor (30) as the vibrating means (34), which motor is associated with the fine-dust collection member (14) and causes the fine-dust collection member (14) to vibrate during operation.
12. Vacuum cleaner (10) according to claim 10, comprising a cable reel unit for a connection cable, and a vibrating means (34) which acts on the fine-dust collection member (14) when the connection cable is being pulled out or rolled up.
13. Vacuum cleaner (10) according to claim 10, comprising a roller (42) and a vibrating means (34) which acts on the fine-dust collection member (14) when the roller (10) rotates.
14. Vacuum cleaner according to claim 10, comprising a flap as the vibrating means (34) for closing a dust inlet (24) in a pulsed manner, wherein closing a dust inlet (24) in a pulsed manner causes vacuum fluctuations in the fine-dust collection member and therefore causes it to vibrate (14).
15. Method for operating a vacuum cleaner (10) according to any of claims 10 to 14, wherein the vibrating means (34) is automatically activated at predetermined or predeterminable times for a predetermined or predeterminable length of time.

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