EP4133984B1 - Dust bag removal module and vacuum cleaner - Google Patents

Description

The invention relates to a dust bag removal module and a vacuum cleaner for cleaning and maintaining floor surfaces with a housing, a blower for generating a negative pressure for collecting dust by means of an air flow, wherein the blower is arranged in a blower chamber of the housing, and a dust chamber in the housing connected to the blower chamber for receiving a dust bag for cleaning the absorbed air of dust, wherein the dust chamber is accessible for changing the dust bag via a dust chamber opening that can be covered with a housing cover.

In private households and in businesses, vacuum cleaners are used to clean surfaces such as textile floor coverings and smooth floors. The floor surface can be a textile floor covering such as a carpet or rug or a hard floor such as wooden parquet, laminate or PVC floor covering.

A dust bag for such a vacuum cleaner today usually comprises a holding plate for fastening in a dust chamber of the vacuum cleaner, with an inlet opening being let into the holding plate for receiving a dust-laden air flow from the vacuum cleaner, with a filter bag made of an air-permeable material that is open to the inlet opening being arranged on the holding plate, with the material of the filter bag being designed to filter the dust out of the air flow as the air flow passes through. In many dust bags, the inlet opening let into the holding plate is provided with a flap that closes the dust bag when it is removed from the dust chamber so that dust collected in the filter bag cannot escape again via the inlet opening. In addition, the inlet opening is usually provided with a seal that seals the dust bag from an inlet nozzle of the vacuum cleaner that dips into the inlet opening. These numerous components of the dust bag are made of a wide variety of materials and are replaced when the dust bag is changed. This is not particularly sustainable or resource-saving, as the materials used to recycle the replaced components are very difficult to recycle.

The US 2005 098039 A1 discloses a dust bag removal module with a first coupling point for connection to a vacuum cleaner and a second coupling point for connection to a dust bag, wherein the dust bag removal module has a gripping surface and an ejection mechanism for separating the dust bag.

The EN 10 2019 123150 A1 discloses a dust bag with a holding plate on which a pull tab is arranged. The DE 29 821 276 U1 discloses a dust bag with a holding plate to which a holding bracket is attached.

The invention therefore addresses the problem of providing a solution that enables simpler, more sustainable and resource-saving operation of a vacuum cleaner. In particular, the amount of waste generated when changing the dust bag should be reduced and handling when changing the dust bag should be simplified.

According to the invention, this problem is solved by a dust bag removal module having the features of patent claim 1.

With the dust bag removal module for manual arrangement in a vacuum cleaner and for manual removal from the vacuum cleaner, wherein the dust bag removal module has a first, multiply separable and connectable coupling interface for separation and connection to the vacuum cleaner and a second, multiply separable and connectable coupling interface for separation and connection to a dust bag, wherein the dust bag removal module has a gripping surface for manually grasping the dust bag removal module when removing and separating the first coupling interface from the vacuum cleaner and when arranging and connecting the first coupling interface to the vacuum cleaner, and wherein the dust bag removal module has a decoupling device for manually separating the connection to the dust bag at the second coupling interface, handling when changing the dust bag can be simplified and at the same time resources can be saved because the amount of waste can be reduced by changing the dust bag. The dust bag removal module simplifies the manual arrangement and removal of a dust bag in a vacuum cleaner by a user. For this purpose, the user can easily handle the dust bag removal module using the handle surface. The first, multiple separable and connectable coupling interface of the dust bag removal module enables the device to be disconnected from the vacuum cleaner when the dust bag is removed via the dust bag removal module. In addition, the connection of the dust bag removal module to the vacuum cleaner can also be established very easily via the first, multiple separable and connectable coupling interface when a new dust bag is inserted into the vacuum cleaner with the dust bag removal module. The dust bag removal module also has the second coupling interface for previously connecting the dust bag to the dust bag removal module. In order to easily separate a full dust bag from the dust bag removal module when changing it, a decoupling device is provided on the dust bag removal module that enables the connection between the full dust bag and the Dust bag removal module on the second coupling interface. Thanks to the multiple detachable and connectable coupling interfaces of the dust bag removal module, it can be used multiple times when changing the dust bag and does not need to be replaced. It secures the dust bag sufficiently in the dust compartment of the vacuum cleaner so that a complex holding plate that is replaced with the dust bag is not necessary. This reduces the complexity of the dust bag and the waste generated when changing the dust bag, thus saving valuable resources in a simple way. When changing the dust bag, the full dust bag can be very easily lifted out of the dust compartment using the handle on the dust bag removal module and an empty bag can be easily inserted into the dust compartment of the vacuum cleaner by the user using the handle on the dust bag removal module.

Advantageous embodiments and further developments of the invention emerge from the following dependent claims. It should be noted that the features listed individually in the claims can also be combined with one another in any technologically reasonable manner and thus show further embodiments of the invention.

According to an advantageous embodiment of the invention, it is provided that the second coupling interface is designed to create a locking connection to a dust bag, wherein the decoupling device is designed to separate this locking connection to the dust bag. The locking connection can be used to create a particularly simple coupling interface between the dust bag and the dust bag removal module that can be separated or connected multiple times. By manually operating the decoupling device, the locking connection can also be easily separated by the user, so that the dust bag can be disengaged from the second coupling interface and disposed of separately from the dust bag removal module. By operating the decoupling device, for example over a trash can, the dust bag released from the second coupling interface can fall from the dust bag removal module into the trash can. The user can therefore handle the dust bag via the dust bag removal module and does not have to touch the dust bag directly for disposal. Instead of a locking connection, a bayonet lock or similar can also be provided on the second coupling interface.

Particularly preferred is an embodiment which provides that the dust bag removal module has an air duct for guiding an air flow from a coupled vacuum cleaner into a coupled dust bag. With this air duct, the dust-laden air flow of the coupled vacuum cleaner can be particularly easily the dust bag removal module into the coupled dust bag. For this purpose, the air duct advantageously forms a straight, tubular nozzle between the vacuum cleaner and the dust bag.

According to the invention, at least one flap is arranged in the air duct, wherein the at least one flap is designed to be moved through the air duct into an open position by a differential pressure applied to the flap for the air flow of the coupled vacuum cleaner. The inlet opening of the dust bag can be closed via the flap in the dust bag removal module during handling of the dust bag removal module and storage of the switched off vacuum cleaner, so that no dirt escapes from the coupled dust bag via the air duct of the dust bag removal module. As soon as the vacuum cleaner applies a differential pressure to the flap when generating the air flow, the flap is opened so that the air flow can flow through the air duct of the dust bag removal module.

A particularly advantageous embodiment of the invention therefore provides that the flap is designed to be moved by the differential pressure against the spring force of a spring into the open position, wherein the flap is further designed to be automatically moved back into a closed position to close the air duct by the spring force of the spring. In order to close the inlet opening of a dust bag coupled to the dust bag removal module easily and quickly, the flap in the air duct is subjected to the spring force of a spring, which moves the flap from the open position back into the closed position as soon as the air flow of the vacuum cleaner stops, for example when the fan is switched off.

An advantageous embodiment of the invention provides that the dust bag removal module has a seal for sealing against a coupled dust bag. By sealing the dust bag removal module against the dust bag, it is possible to prevent the air flow from the air duct of the dust bag removal module from flowing past the inlet opening of the dust bag. Since the seal is attached to the dust bag removal module, the dust bag can be replaced without replacing the seal, which reduces the waste generated for the change. The seal between the dust bag and the dust bag removal module can also be fixed to the inlet opening of the dust bag, so that the seal is replaced when the dust bag is changed. This can prevent the seal from failing over the service life of the vacuum cleaner. With the fixed arrangement of the seal on the dust bag removal module, the seal can also be simply replaced by by replacing the relatively simple dust bag removal module.

A particularly advantageous embodiment is one in which the dust bag removal module has a seal for sealing against a coupled vacuum cleaner. By sealing the dust bag removal module against the vacuum cleaner, the air flow can be prevented from flowing past the air duct of the dust bag removal module. Since the seal is attached to the dust bag removal module, the seal can be easily replaced by replacing the relatively simple dust bag removal module.

Furthermore, the vacuum cleaner according to the invention, which has already been described above and in more detail below, is characterized by a coupling receiving interface for receiving a dust bag removal module, which has already been described above and in more detail below, wherein a dust bag received in the dust chamber is coupled in the dust chamber via a dust bag removal module received at the coupling receiving interface. The coupling receiving interface very easily fixes the dust bag removal module in the dust chamber of the vacuum cleaner. The dust bag coupled to the dust bag removal module can thus be securely positioned in the dust chamber. This makes it easy to change the dust bag in this vacuum cleaner. With the option of receiving the dust bag removal module through the coupling receiving interface, the dust bag removal module can be securely positioned in the dust chamber to receive the dust bag coupled to the dust bag removal module.

The vacuum cleaner has a blower for generating a negative pressure, through which a floor nozzle guided over a floor surface to be cleaned picks up dust and dirt from the floor surface. To do this, the user moves the floor nozzle back and forth in the direction of processing using pushing and pulling movements. This causes the floor nozzle to glide over the floor surface to be cleaned. In particular with long-pile carpets, the underside of the floor nozzle glides over the carpet, while with smooth floors the underside hovers over these floor surfaces at a distance, possibly by means of spacer bristles. The user can, for example, handle a handle of the vacuum cleaner connected to the suction pipe. So that the cleaning and care of the floor covering can be carried out as effectively as possible, the suction mouth of the floor nozzle is elongated and runs essentially transversely to the processing direction. In this context, elongated means that the preferably essentially rectangular suction mouth has a greater length transversely to the processing direction than its width in the processing direction. The suction mouth is preferably between 20 and 30 cm long across the processing direction. The vacuum cleaner can also be designed as a self-driving vacuum cleaner, in particular a robot vacuum cleaner, so that the processing direction of the floor nozzle corresponds to the direction of travel of the self-driving vacuum cleaner.

An advantageous embodiment of the vacuum cleaner provides that the first coupling interface of a received dust bag removal module is coupled to the coupling receiving interface of the vacuum cleaner and that the second coupling interface of the received dust bag removal module is coupled to a dust bag received in the dust compartment. The dust bag can be placed very easily and safely in the dust compartment of the vacuum cleaner via the two coupling interfaces of the dust bag removal module. The coupling interfaces, which can be separated and connected multiple times, enable the intermediate dust bag removal module to be reused when replacing the dust bag in the vacuum cleaner.

According to the invention, the vacuum cleaner has a funnel-shaped threading slope on the housing cover, into which the dust bag removal module dips when the housing cover is closed. The funnel-shaped threading slope makes it very easy to ensure that the dust bag removal module is optimally positioned in the dust chamber of the vacuum cleaner after the housing cover is closed, thus optimally positioning the dust bag coupled to the dust bag removal module in the dust chamber.

Figur 1

Erfindungsgemäßer Staubsauger mit Bodendüse,

Figur 2

Gehäusedeckel mit Staubbeutelentnahmemodul und Halteplatte,

Figur 3

Staubbeutelentnahmemodul mit geschlossener Klappe und Halteplatte,

Figur 4

Staubbeutelentnahmemodul mit geöffneter Klappe und Halteplatte,

Figur 5

Staubbeutelentnahmemodul mit zweiteiliger Klappe,

Figur 6

Staubbeutelentnahmemodul mit einteiliger Klappe,

Figur 7

weiteres Staubbeutelentnahmemodul mit geöffneter Klappe und Halteplatte,

Figur 8

weiteres Staubbeutelentnahmemodul mit geöffneter Klappe und Halteplatte,

Figur 9

weitere Schnittansicht von Staubbeutelentnahmemodul,

Figur 10

weitere Schnittansicht von Staubbeutelentnahmemodul, und

Figur 11

weiteres Staubbeutelentnahmemodul mit einteiliger Klappe und Halteplatte.

Further features, details and advantages of the invention will become apparent from the following description and from the drawings. An embodiment of the invention is shown purely schematically in the following drawings and is described in more detail below. Corresponding objects or elements are provided with the same reference numerals in all figures. They show:

Figure 1

Inventive vacuum cleaner with floor nozzle,

Figure 2

Housing cover with dust bag removal module and holding plate,

Figure 3

Dust bag removal module with closed flap and holding plate,

Figure 4

Dust bag removal module with opened flap and holding plate,

Figure 5

Dust bag removal module with two-part flap,

Figure 6

Dust bag removal module with one-piece flap,

Figure 7

additional dust bag removal module with opened flap and holding plate,

Figure 8

additional dust bag removal module with opened flap and holding plate,

Figure 9

further sectional view of dust bag removal module,

Figure 10

further sectional view of dust bag removal module, and

Figure 11

Additional dust bag removal module with one-piece flap and holding plate.

In the Figure 1 A vacuum cleaner with a floor nozzle 19 is shown purely schematically with the reference number 2. The illustration according to Figure 1 shows a vacuum cleaner 2 according to the invention with a floor nozzle 19 connected to the vacuum cleaner 2. The vacuum cleaner 2 shown in the exemplary embodiment is a so-called canister vacuum cleaner. The floor nozzle 19 is connected here via its connection piece 20 to a suction pipe 21, which is preferably designed to be telescopic. Furthermore, the floor nozzle 19 in this exemplary embodiment shown has its own housing 22 which is independent of the vacuum cleaner housing 13. The telescopic suction pipe 21 extends into a handle 23 to which a suction hose 24 is connected, which is connected to the vacuum cleaner housing 13. A fan of the vacuum cleaner 2, which is integrated in the vacuum cleaner housing 13, is powered by an electrical connection cable 25 in order to generate a negative pressure. By means of this negative pressure, dirt and grime from the floor area B to be cleaned are picked up by an air stream via the suction mouth of the floor nozzle 19 and transported via the suction pipe 21 and the suction hose 24 into the housing 15 of the vacuum cleaner 2. Provided in this housing 15 is a separation system which is designed as a dust bag 5. This separation system 5 is located in a dust chamber formed by the housing parts 13, 15 of the vacuum cleaner 2. This dust chamber 14 is accessible and open by a folding mechanism between the vacuum cleaner housing 13 and the housing cover 15 so that the dust bag 5 is visible and removable. To operate the vacuum cleaner 2, the dust chamber 14 is closed and a negative pressure is generated. The air stream generated by the negative pressure is freed of dirt and grime in the separation system 5 and guided out of the vacuum cleaner 2 via an exhaust air grille 26. To switch the vacuum cleaner 2 on and off, it has a foot switch 27 (comment: this is actually the switch on the other side). This foot switch 27 includes switches that are large enough for users to operate them with their foot. The foot switch 27 usually also has a switch for operating the automatic winding mechanism for the connecting cable 25 integrated in the vacuum cleaner housing 13 (not shown). The handle 23 also has a secondary air regulator 28 with which the air flow at the floor nozzle can be interrupted if an object is accidentally sucked in with the floor nozzle. Users of the vacuum cleaner 2 can grasp the handle 23 and thus push the floor nozzle back and forth by means of a pushing and pulling movement in the processing direction R marked as a double arrow in order to clean the floor area B. The floor nozzle 19 glides over the floor surface B to be cleaned. Especially with long-pile carpets, the underside of the floor nozzle 19 glides over the floor surface B, while with hard floors the underside is spaced apart, possibly by spacer bristles, over this floor surfaces B. In the illustrated embodiment, the floor nozzle 19 also has support elements 29 in the form of wheels, which ensure a defined distance between the underside and the floor surfaces to be cleaned and easy handling when pushing the floor nozzle 19 back and forth.

The Figure 2 shows a sectional view through the housing cover 15 of the vacuum cleaner 2 according to Figure 1 . In this illustration, a dust bag removal module 1 can also be seen and a holding plate 31 of a dust bag 5 coupled to the dust bag removal module 1 ( Fig.1 ). The holding plate 31 is permanently connected to the dust bag 5. The dust bag removal module 1 is used for the manual arrangement of dust bags 5 ( Fig.1 ) in a vacuum cleaner 2 ( Fig.1 ) and for manual removal of dust bags 5 ( Fig.1 ) from the vacuum cleaner 2 ( Fig.1 ). The dust bag removal module 1 shown has a first, multiple separable and connectable coupling interface 3 for separating and connecting to the vacuum cleaner 2 ( Fig.1 ). This nozzle-shaped coupling interface 3 of the dust bag removal module 1 is used to connect to the connection opening 32 for the suction hose 24 ( Fig.1 ) in the housing cover 15 of the vacuum cleaner 2. To accommodate the first coupling interface 3 of the dust bag removal module 1, the vacuum cleaner 3 has a coupling receiving interface 17, which in the embodiment is arranged in the housing cover 15 of the vacuum cleaner 2. A dust chamber 14 ( Fig.1 ) dust bag 5 ( Fig.1 ) is thereby coupled via the dust bag removal module 1 received at the coupling receiving interface 17 in the dust chamber 14. For this purpose, the dust bag removal module 1 has a second, multiple separable and connectable coupling interface 4 for separating and connecting to the dust bag 5. To fix the dust bag 5 in the dust chamber 14 ( Fig.1 ) of the vacuum cleaner 2, the first coupling interface 3 of the accommodated dust bag removal module 1 is coupled to the coupling receiving interface 17 of the vacuum cleaner 2 and the second coupling interface 4 of the accommodated dust bag removal module 1 is coupled to the dust bag 5 accommodated in the dust chamber 14. In order for the dust bag removal module 1 to be optimally connected to the connection opening 31 for the suction hose 24 ( Fig.1 ) is positioned in the housing cover 15 of the vacuum cleaner 2, the coupling receiving interface 17 has a funnel-shaped threading bevel 18 on the housing cover 15, into which the dust bag removal module 1 is inserted when the housing cover 15 is closed, as in Figure 2 to be seen. The dust bag removal module 1 has a gripping surface 6 for manually gripping the dust bag removal module 1 during removal and when separating the first coupling interface 3 from the vacuum cleaner 2 ( Fig.1 ). This gripping surface 6 also serves to manually grasp the dust bag removal module 1 by the user when arranging and connecting the first coupling interface 3 to the vacuum cleaner 2 ( Fig.1 ). In addition, the dust bag removal module 1 has a decoupling device 7 for manually disconnecting the connection to the dust bag 5 at the second coupling interface 4. This decoupling device 7 is designed as two opposing levers that can be manually operated by the user with a thumb and a finger to disconnect the connection between the dust bag 5 and the dust bag removal module 1 at the second coupling interface 4. As can be seen, the second coupling interface 4 can produce a latching connection 30 to the dust bag 5, wherein the simply designed holding plate 31 of the dust bag 5 is latched to an undercut 36 of the holding plate 31 at the second coupling interface 4. The decoupling device 7 is designed to disconnect this latching connection 30 to the dust bag 5. When actuated, the levers rotate about the pivot point 35 and thus release the dust bag 5 at the second coupling interface 4. After removing the dust bag 5 from the vacuum cleaner 2 on the dust bag removal module 1, the locking connection 30 can advantageously be separated over a trash can, so that the dust bag 5, which is initially hanging over the trash can on the dust bag removal module 1, simply falls into the trash can. This means that the user does not have to touch the full dust bag 5 even when disposing of it. The grip surface 6 arranged on the dust bag removal module 1 serves this purpose, allowing easy handling of the dust bag removal module 1. In Figure 2 It can also be seen that the dust bag removal module 1 has a preferably tubular air guide 8 for guiding an air flow from the suction hose 24 of the coupled vacuum cleaner 2 into the coupled dust bag 5. While the Figure 2 shows a cross section through the dust bag removal module 1 arranged in the vacuum cleaner 2, is in Figure 3 a longitudinal section rotated by ninety degrees through the dust bag removal module 1 is shown.

The Figure 3 thus shows a rotation around the central axis 33 of the dust bag removal module 2 by ninety degrees compared to the illustration in Figure 2 rotated sectional view. In this illustration it can be seen more clearly that a two-part flap 9 is arranged in the air duct 8. The flap parts of the flap 9 are pivotally attached to the air duct 8. In the pivot position shown here, the two-part flap 9 closes the air duct 8 of the dust bag removal module 1. This ensures that the flap 9 in the closed position shown retains the dust in the filter bag of the full dust bag 5 when changing, i.e. when handling the dust bag removal module 1.

In Figure 4 is a similar sectional view as in Figure 3 shown, but here the two-part flap has been moved into an open position. For this purpose, the flap 9 is designed to be moved into an open position by a differential pressure applied to the flap 9 for the air flow of the coupled vacuum cleaner 2 through the air duct 8. The Figure 3 i.e. the closed position of the flap 9, which occurs when the vacuum cleaner 2, in particular the fan of the vacuum cleaner 2, is switched off and the air flow through the dust bag 5 is interrupted. The dust bag 5 is thus also closed during vacuuming breaks. The Figure 4 shows the opening position of the flap 8, which is reached when the vacuum cleaner 2 ( Fig.1 ), in particular the fan of the vacuum cleaner 2 ( Fig.1 ), are in operation and an air flow is generated through the coupled dust bag 5. The flap 9 is advantageously designed to be moved into the open position by the differential pressure against the spring force of a spring 10. In addition, the flap 9 is designed so that the spring force of the spring 10 automatically moves the flap 9 back into the Figure 3 shown locking position to close the air duct 8. This automatically closes the air duct 8 of the dust bag removal module 1 as soon as the fan of the coupled vacuum cleaner 2 ( Fig.1 ) is switched off and the air flow through the coupled dust bag 5 is interrupted. This can effectively prevent dust from escaping from a full dust bag 5 when changing the bag via the air duct 8 of the coupled dust bag removal module 1. Only when the locking connection 30 is released, as shown in Figure 2 shown, between the dust bag 5 and the dust bag removal module 1 at the second coupling interface 4, the inlet opening 34 of the dust bag 5 is released. If the decoupling device 7 is first actuated above the trash can, the dust bag 5 then falls directly into the trash can, whereby the disposal of the full rod bag 5 can be carried out very hygienically. Both in Figure 4 as well as in the Figures 3 and 2 a seal 11 can be seen on the dust bag removal module 1 for sealing against the coupled dust bag. This seal 11 is advantageously arranged firmly on the dust bag removal module 1 and, when coupled with the dust bag 5, rests against the retaining plate 31 of the dust bag 5. The seal 11 is attached to the dust bag removal module 1, so the dust bag 5 can be replaced without replacing the seal 11, which reduces the waste generated during the replacement. Due to the fixed arrangement of the seal 11 on the dust bag removal module 1, the seal 11 can also be replaced simply by replacing the relatively simple dust bag removal module 1. In the Figures 3 , 4 and 5 There is also a second seal 12 between the dust bag removal module 1 and the vacuum cleaner 2 ( Fig.1 ) can be seen. This second seal 12 on the dust bag removal module 1 serves to seal against the coupled vacuum cleaner 2 ( Fig.1 ). By sealing the dust bag removal module 1 against the vacuum cleaner 2 ( Fig.1 ) can prevent the air flow from flowing past the air guide 8 of the dust bag removal module 1. The seal 12 on the dust bag removal module 1 can be easily replaced by replacing the relatively simple dust bag removal module 1.

In Figure 5 The dust bag removal module 1 is inserted in such a way that the opened, semi-circular flap parts of the Figure 4 opened flap 9 in the air duct 8 can be clearly seen. In the closed position, the flap parts of the flap 9 completely close the tubular air duct 8.

In Figure 6 However, an embodiment of the dust bag removal module 1 is shown, which differs from the embodiment according to the Figures 2 to 5 differs in that the flap 9 is made in one piece. The circular flap 9 completely closes the tubular air duct 8 in the closed position. This one-piece flap 9 is only suspended on one side in the air duct 8, so that only one suspension and one spring 10 are required to move the flap 9 into the closed position.

The execution according to Figure 7 differs from the versions according to the Figures 2 to 6 of the dust bag removal module 1 in particular in that the locking connection 30 engages the holding plate 31 of the dust bag 5 from the outside. The undercut 36 on the holding plate 31 is accessible from the outside and the levers of the decoupling device 7 rotate about the pivot point 35 when actuated and thus release the dust bag 5 at the second coupling interface 4.

In Figure 8 again an embodiment of the dust bag removal module 1 is shown, which in turn has a locking connection 30 which engages from the inside at the inlet opening 34 of the holding plate 31 of the dust bag 5 in the undercut 36 formed here. When the levers of the decoupling device 7 are actuated, they rotate about the pivot point 35 and thus release the holding plate 31 of the dust bag 5 at the second coupling interface 4 of the dust bag removal module 1.

In Figure 9 a variant of the dust bag removal module 1 is shown which does not require a snap-in connection. Here, the dust bag removal module 1 is simply inserted into the inlet opening 34 for coupling with the holding plate 31 of the dust bag 5 at the second coupling interface 4.

The design of the dust bag removal module 1 according to Figure 10 differs from the execution according to Figure 9 in particular by the fact that instead of a two-part flap, a one-part flap 9 is provided in the air duct 8.

In Figure 11 again an example of the dust bag removal module 1 is shown, which has a locking connection 30 which engages from the outside on the holding plate 31 of the dust bag 5 in the undercut 36 formed here. When the levers of the decoupling device 7 are actuated, they rotate about the pivot point 35 and thus release the holding plate 31 of the dust bag 5 at the second coupling interface 4 of the dust bag removal module 1. Here, the circular, open flap 9 in the air duct 8 of the dust bag removal module 1 can also be seen.

With the described dust bag removal modules 1, the holding plate 31 of the dust bag 5 at the inlet opening 34 no longer needs to be constructed as elaborately as is the case today. It is sufficient to have a border around the inlet opening 34 that forms a sufficiently large undercut 36 so that the dust bag 5 can be coupled to the dust bag removal module 1 at the second coupling interface 4. In addition, the invention described makes it possible to manufacture the entire dust bag 5 including the simple holding plate 31 from a single material. For example, a PP-based nonwoven fabric for the filter bag with a simple holding plate 31 is also conceivable, also made of PP. But a paper dust bag with a simple holding plate 31 made of cardboard is also possible.

Of course, the invention is not limited to the embodiment shown. Further embodiments are possible without departing from the basic idea.

List of reference symbols:

1

Dust bag removal module

2

Vacuum cleaner

3

First coupling interface

4

Second coupling interface

5

Dust bag

6

Grip surface

7

Decoupling device

8th

Airflow

9

flap

10

Feather

11

First seal

12

Second seal

13

Housing (vacuum cleaner)

14

Dust room

15

Housing cover

16

Dust chamber opening

17

Coupling recording interface

18

Threading slope

19

Floor nozzle

20

Connection piece

21

Intake manifold

22

Housing (floor nozzle)

23

Handle

24

Suction hose

25

Connection cable

26

Exhaust grille

27

Pedal shift

28

Secondary air regulator

29

Support elements

30

Snap connection

31

Holding plate (dust bag)

32

Connection opening

33

Central axis

34

Inlet opening

35

pivot point

36

Undercut

B

Floor area

R

Processing direction

Claims (7)

1. Dust bag removal module (1) for manual arrangement in a vacuum cleaner (2) and for manual removal from the vacuum cleaner (2), the dust bag removal module (1) having a first coupling interface (3) which is repeatedly separable and connectable for separating from and connecting to the vacuum cleaner (2), and a second coupling interface (4) which is repeatedly separable and connectable for separating from and connecting to a dust bag (5), the dust bag removal module (1) having a grip surface (6) for manually gripping the dust bag removal module (1) when the first coupling interface (3) is removed and separated from the vacuum cleaner (2), and when the first coupling interface (3) is arranged and connected to the vacuum cleaner (2), and the dust bag removal module (1) having a decoupling device (7) for manually separating the connection to the dust bag (5) at the second coupling interface (4), the dust bag removal module (1) having an air guide (8) for guiding an air flow from a coupled vacuum cleaner (2) into a coupled dust bag (5),
   characterised in that
   at least one flap (9) is arranged in the air guide (8), the at least one flap (9) being configured to be moved by a differential pressure applied to the flap (9) into an open position for the air flow of the coupled vacuum cleaner (2) through the air guide (8).
2. Dust bag removal module (1) according to claim 1, characterised in that the second coupling interface (4) is configured to produce a catch connection (30) to a dust bag (5), the decoupling device (7) being configured to separate this catch connection (30) to the dust bag (5).
3. Dust bag removal module (1) according to claim 1, characterised in that the flap (9) is configured to be moved by the differential pressure to the open position against the spring force of a spring (10), the flap (9) being further configured to be moved automatically back into a closed position by the spring force of the spring (10) in order to close the air guide (8).
4. Dust bag removal module (1) according to any of the preceding claims, characterised in that the dust bag removal module (1) has a seal (11) for sealing against a coupled dust bag (5).
5. Dust bag removal module (1) according to any of the preceding claims, characterised in that the dust bag removal module (1) has a seal (12) for sealing against a coupled vacuum cleaner (2).
6. Vacuum cleaner (2) for cleaning and maintaining floor surfaces, comprising a housing (13), a fan for generating a vacuum for receiving dust by means of an air flow, the fan being arranged in a fan space of the housing (13), and a dust chamber (14) connected to the fan space in the housing (13) for receiving a dust bag (5) for cleaning the received air from the dust, the dust chamber (14) being accessible, in order to change the dust bag (5), via a dust chamber opening (16) which can be covered by the housing lid (15), the vacuum cleaner (2) having a coupling receiving interface (17) for receiving a dust bag removal module (1) according to any of the preceding claims 1 to 7, a dust bag (5) received in the dust chamber (14) being coupled to the dust chamber (14) via a dust bag removal module (1) received at the coupling receiving interface (17),
   characterised in that
   the vacuum cleaner (2) has a funnel-shaped insertion bevel (18) on the housing lid (15), which the dust bag removal module (1) enters when the housing cover (15) is closed.
7. Vacuum cleaner (1) according to claim 6, characterised in that the first coupling interface (3) of a received dust bag removal module (1) is coupled to the coupling receiving interface (17) of the vacuum cleaner (2), and in that the second coupling interface (4) of the received dust bag removal module (1) is coupled to a dust bag (5) received in the dust chamber (14).

Images