EP3847937B1 - Vacuum cleaner filter bag device - Google Patents

Description

The invention relates to a filter bag device for a vacuum-cleaning device. It includes a filter material bag and an adapter device. The bag of filter material has an elongated basic configuration with a bag inlet opening at one end of its length.

Such a filter bag device for a vacuum cleaner is in DE 81 32 813 U1 shown. The filter material bag has a cylindrical connection section with the bag inlet opening, with which it is attached to the device connection piece via a fastening ring.

the DE 102 43 341 B3 describes a filter material bag which has a cylindrical connection extension which can be connected to a device socket for connecting the filter material bag to the vacuum-cleaning device.

the DE 199 59 513 D1 and the DE 20 2007 014 263 U1 describe dust filter bags that are installed upstream of the actual dust filter bag in a suction tube of a vacuum cleaner. They have an elongate basic configuration with the bag inlet opening at one end of their length. They are fixed with the bag inlet opening on a device socket via a cylindrical ring.

the DE 698 11 473 T2 describes a dust bag device in which the dust filter bag is fastened in the region of its inlet opening to a bag-side adapter designed as a ring and a device-side adapter designed as a collar is clipped to the bag-side adapter, the bag-side adapter being fixed on a holding plate made of cardboard. A filter bag device according to the preamble of claim 1 is made, for example DE-A-3404058 known, with an adapter device in which the device-side adapter and the bag-side adapter are designed as separate components that are detachably connected to each other.

The invention is based on the object of creating a vacuum cleaner filter bag device which has a high level of functionality in operation and allows simple handling when installing and removing it in and out of the vacuum cleaner.

This object is achieved according to the invention with the subject matter of main claim 1 . According to the subject matter of main claim 1, a filter bag device for a vacuum-cleaning device is provided. It comprises a filter material bag, which is formed from single-layer and/or multi-layer filter material and has a substantially elongated basic configuration with a bag inlet opening at the end of its longitudinal extent, and an adapter device with a bag-side adapter to which the filter material bag is connected or can be connected, and a device-side adapter for connection to the vacuum-cleaning device.

The bag-side adapter has a passage and the device-side adapter has a passage. The passage of the bag-side adapter and the passage of the device-side adapter form a common passage of the adapter device.

The device-side adapter and the bag-side adapter can be designed as separate components that are detachably or permanently connected to one another. Alternatively, it can also be provided that the device-side adapter and the bag-side adapter are designed in one piece.

1. a) dass der beutelseitige Adapter ein mit dem Durchgang des beutelseitigen Adapters verbundenes Anschlussende aufweist, an dem der Filtermaterialbeutel im Bereich seiner Beuteleinlassöffnung angeschlossen oder anschließbar ist,
2. b) dass der geräteseitige Adapter ein mit dem Durchgang des geräteseitigen Adapters verbundenes Anschlussende aufweist, an dem ein Stutzen des staubsaugenden Geräts anschließbar ist,
3. c) dass der geräteseitige Adapter unter Eingriff in den Durchgang des beutelseitigen Adapters ausgebildet ist,
4. d) dass der Filtermaterialbeutel einen Beutelbauch und einen Beutelhals aufweist, wobei am Ende des Beutelhalses die Beuteleinlassöffnung ausgebildet ist und der Umfang des Beutelhalses kleiner ist als der Umfang des Beutelbauchs,
5. e) dass der Anschluss des Filtermaterialbeutels an dem beutelseitigen Adapter derart ausgebildet ist, dass das Anschlussende des beutelseitigen Adapters als stutzenförmiges Anschlussende ausgebildet ist und der Beutelhals des Filtermaterialbeutels mit seiner Außenseite an der Innenseite des stutzenförmigen Anschlussendes oder mit seiner Innenseite an der Außenseite des stutzenförmigen Anschlussendes aufgebracht ist,
6. f) dass der Filtermaterialbeutel (2) als Flachbeutel ausgebildet ist, dessen erste quer zur Längserstreckung ausgebildete Stirnkante durch das die Beuteleinlassöffnung (2e) aufweisende Ende des Beutelhalses (2bh) gebildet ist und dessen zweite quer zur Längserstreckung ausgebildete Stirnkante durch das bodenseitige Ende des Beutelbauches (2bb) gebildet ist;
7. g) dass der Filtermaterialbeutel (2) entlang seiner Längserstreckung eine Symmetrieachse (S) aufweist, derart, dass der Beutelhals (2bh) sich entlang der Symmetrieachse (S) erstreckt und die erste Stirnkante und die zweite Stirnkante sich quer zur Symmetrieachse (S) erstrecken und beiderseits der Symmetrieachse (S) sich jeweils eine Seitenkante erstreckt;
8. h) dass der Filtermaterialbeutel (2) mit zwei komplett ausstülpbaren Seitenfalten (2sf) ausgebildet ist, der in der Betriebsstellung bei ausgestülpten Seitenfalten mit jeweils zwei ausgestülpten Ecken derart ausgebildet ist, dass der Beutelhals (2bh) durch einen zylindrischen Abschnitt und einen Übergangsabschnitt zum Beutelbauch (2bb) als ein im Wesentlichen konisch divergierender Abschnitt ausgebildet ist;
9. i) dass der Filtermaterialbeutel (2) bei eingestülpten Seitenfalten (2sf) derart ausgebildet ist, dass die eingestülpten zwei Seitenfalten (2sf) sich jeweils über die Längserstreckung des Beutelbauchs (2bb) hinaus in den Übergangsabschnitt des Beutelhalses (2bh) hinein erstrecken, derart, dass der Filtermaterialbeutel (2) bei eingestülpten Seitenfalten (2sf) entlang seiner Längserstreckung in Richtung von Beutelhals (2bh) zum Beutelbauch (2bb) bis hin zum bodenseitigen Ende des Beutelbauchs konisch divergierend ausgebildet ist.

It is essential for the solution according to the invention that the features a) to e) are implemented. These provide

1. a) that the bag-side adapter has a connection end connected to the passage of the bag-side adapter, to which the filter material bag is connected or can be connected in the area of its bag inlet opening,
2. b) that the device-side adapter has a connection end connected to the passage of the device-side adapter, to which a connection piece of the vacuum-cleaning device can be connected,
3. c) that the device-side adapter is designed to engage in the passage of the bag-side adapter,
4. d) that the filter material bag has a bag belly and a bag neck, the bag inlet opening being formed at the end of the bag neck and the circumference of the bag neck being smaller than the circumference of the bag belly,
5. e) that the connection of the filter material bag to the bag-side adapter is designed in such a way that the connection end of the bag-side adapter is designed as a socket-shaped connection end and the bag neck of the filter material bag with its outside on the inside of the socket-shaped connection end or with its inside on the outside of the socket-shaped connection end is upset
6. f) that the filter material bag (2) is designed as a flat bag, the first end edge of which is formed transversely to the longitudinal extent by the end of the bag neck (2bh) which has the bag inlet opening (2e) and the second end edge formed transversely to the longitudinal extent by the bottom end of the bag belly (2bb) is formed;
7. g) that the filter material bag (2) has an axis of symmetry (S) along its longitudinal extent, such that the bag neck (2bh) extends along the axis of symmetry (S) and the first end edge and the second end edge extend transversely to the axis of symmetry (S). and one side edge extends on each side of the axis of symmetry (S);
8. h) that the filter material bag (2) is designed with two side folds (2sf) that can be completely pulled out, which in the operating position with the side folds turned out is designed with two turned-out corners each in such a way that the bag neck (2bh) has a cylindrical section and a transition section to the bag belly (2bb) is formed as a substantially conically diverging section;
9. i) that the filter material bag (2) is formed with turned-in side folds (2sf) in such a way that the turned-in two side folds (2sf) each extend beyond the longitudinal extension of the bag belly (2bb) into the transition section of the bag neck (2bh), in such a way that the filter material bag (2), with the side folds (2sf) turned in, extends along its longitudinal extension in the direction of the bag neck (2bh) to the bag belly (2bb) is designed to diverge conically up to the bottom end of the pouch belly.

Features a), b) and c) enable an advantageous structural design in connection with high functionality. These features relate to the design of the adapter device. Feature c) enables a dust-tight connection and convenient handling.

Features d) and e) are particularly important for the solution according to the invention, which relate to the design of the filter material bag with bag neck and bag belly, with the bag neck enabling a particularly advantageous design of the connection to the bag-side adapter. The circumference relation in feature d) applies to the operating state of the filter material bag, i.e. when the filter material bag is installed in the vacuum cleaner and the filter material bag is unfolded during suction operation, e.g. in the case of a filter material bag with a side gusset that can be everted, the side folds are everted.

Particularly preferred developments relate to the design of the filter material bag:
It can be provided that the circumference of the neck of the bag is smaller by a factor of 0.5 than the circumference of the belly of the bag. As with feature d), this circumference relation applies to the operating state of the filter material bag, ie when the filter material bag is installed in the vacuum cleaner and the filter material bag is unfolded during suction operation, for example in the case of a filter material bag with a side fold that can be everted, the side folds are everted.

It is essential that the filter material bag is designed as a flat bag, the first front edge of which is formed by the end of the bag neck having the bag inlet opening and the second front edge of which is formed by the bottom end of the bag belly.

It is also essential that the filter material bag has an axis of symmetry such that the bag neck extends along the axis of symmetry and the first end edge and the second end edge extend transversely to the axis of symmetry and one side edge extends on both sides of the axis of symmetry.

Furthermore, it is essential that the filter material bag is designed as a flat bag with several side folds that can be folded out completely.

Advantageous structural designs provide that the filter material bag has a longitudinal extent that is designed in such a way that 10% to 30% of the longitudinal extent is formed by the bag neck including the transition section to the bag belly and 70% to 90% of the longitudinal extent by the bag belly.

It is also essential that the filter material bag designed as a flat bag with side folds that can be everted out is designed in such a way that the side folds are turned out in such a way that the bag neck is formed by a cylindrical section and the Transition section to the bag belly is designed as a substantially conically diverging section.

It can be provided that more than 50% of the longitudinal extent of the bag neck is formed by the transition section to the bag belly. The bag belly can be designed as a substantially cylindrical section of the filter material bag. For designs with gussets that can be turned out, this applies to the operating state with gussets turned out.

With regard to the design of the side folds, it is essential that the filter material bag is designed with inverted side folds in such a way that the inverted side folds extend beyond the longitudinal extension of the bag belly into the transition section of the bag neck.

Particularly compact and at the same time shapely designs result from the fact that the filter material bag designed as a flat bag with side folds that can be pulled out is designed to diverge conically along its longitudinal extent in the direction from the bag neck to the bag belly with the side folds turned in.

A particularly advantageous production of the filter material bag results from designs that provide that the filter material bag designed as a flat bag is formed from two congruent filter material blanks, which are connected by two longitudinal seams on opposite side edges, the filter material bag preferably being designed symmetrically and the two longitudinal seams on both sides of the axis of symmetry are arranged.

Alternatively, it can be provided that the filter material bag designed as a flat bag is made from only a single or multi-layer filter material cut and has only one longitudinal seam that connects the adjoining side edges of the filter material cut to one another, with the filter material bag preferably being designed symmetrically and the longitudinal edges on both sides of the axis of symmetry parallel lie to each other.

It can advantageously be provided that the filter material bag designed as a flat bag has connecting seams in an area of four corners, which connect the filter material in the area of the four corners. These connecting seams can run obliquely and/or curved.

With regard to the connection of the filter material bag to the bag-side adapter, preferred embodiments provide that the bag neck is connected to the socket-shaped connection end of the bag-side adapter by means of an ultrasonic weld connection or an adhesive connection.

Further preferred developments relate to the configuration of the adapter device. What is essential here is that the adapter device is composed of the adapter on the bag side and the adapter on the device side. It can be provided here that the device-side adapter and the bag-side adapter are designed in one piece as a common component. Alternatively, however, it can also be provided that the bag-side adapter and the device-side adapter are designed as separate components that are detachably or permanently connected to one another.

• dass die Adaptereinrichtung einen Verschluss zum Verschließen des Durchgangs der Adaptereinrichtung und/oder der Beuteleinlassöffnung aufweist; und/oder
• dass der beutelseitige Adapter einen Verschluss zum Verschließen des Durchgangs des beutelseitigen Adapters und/oder der Beuteleinlassöffnung aufweist; und/oder
• dass der geräteseitige Adapter einen Verschluss zum Verschließen des Durchgangs des geräteseitigen Adapters und/oder der Beuteleinlassöffnung aufweist.

Designs in which the adapter device has a closure are advantageous if the filter material bag is removed from the vacuum-cleaning device after operation in the filled state for disposal. It can be provided

• that the adapter device has a closure for closing the passage of the adapter device and/or the bag inlet opening; and or
• that the bag-side adapter has a closure for closing the passage of the bag-side adapter and/or the bag inlet opening; and or
• that the device-side adapter has a closure for closing the passage of the device-side adapter and/or the bag inlet opening.

In this context, it can advantageously be provided that the closure is arranged on the bag-side adapter or on the device-side adapter, preferably in the form of a movably mounted cover.

For a dust-tight connection of the device-side adapter with the bag-side adapter, it can be provided that the device-side adapter has a seal for sealing against the device socket or vice versa, i.e. that the device socket has a seal against the device-side adapter.

In a preferred development, it can be provided that the seal is connected to the device-side adapter in the 2K injection molding process.

Designs that provide a non-return flap are advantageous, which prevents the dust that has been absorbed into the filter material bag during operation from falling back again when the suction operation is switched off. In this context, it can be provided that a non-return flap is arranged on the device-side adapter or on the bag-side adapter.

In a preferred development, it can be provided that the non-return flap is arranged on the device-side adapter or on the bag-side adapter in such a way that the non-return flap is arranged inside the filter material bag, preferably in the area between the end of the bag neck that has the bag inlet opening and the bag belly.

Preferred embodiments can provide for the non-return flap to be arranged on a socket extension of the device-side adapter which extends through the bag-side adapter.

As far as the design of the bag-side adapter with the device-side adapter is concerned, it is advantageously provided that the bag-side adapter and the device-side adapter are designed as separate components which are connected to one another in a dust-tight manner.

For the mutual connection of the bag-side adapter and the device-side adapter, it can be provided that the bag-side adapter and the device-side adapter are designed as separate components which are connected to one another by means of a detachable clip connection, preferably in a dust-tight manner.

Advantageously, it can be provided that the device-side adapter engaging in the passage of the bag-side adapter has on its outside at least one circumferential sealing lip, preferably several concentric circumferential sealing lips, which interact or interact with the inner wall of the passage of the bag-side adapter.

Particularly preferred embodiments provide that the bag neck of the filter material bag is permanently connected to the bag-side adapter, preferably by means of a welded connection, and the device-side adapter is detachably connected to the bag-side adapter and is preferably designed to be reusable. This results in particularly advantageous handling for changing the full bag. The filter material bag is changed together with the bag-side adapter.

Further developments are possible in which the detachable plug-in connection between the adapters is secured by a clip connection. The clip elements can advantageously be mounted so that they cannot be lost on the device-side adapter or on the bag-side adapter and form the clip connection with a latch on the respective corresponding adapter.

Fig. 1.1

Draufsicht auf ein erstes Ausführungsbeispiel der Staubsaugerfilterbeuteleinrichtung;

Fig. 1.2

Seitenansicht in Fig. 1.1;

Fig. 1.3

Perspektivische Ansicht in Fig. 1.1;

Fig. 2.1

Draufsicht auf den Filtermaterialbeutel des ersten Ausführungsbeispiels der Figuren 1.1 bis 1.3, in Einzeldarstellung mit ausgeklappten Seitenfalten und ohne Adaptereinrichtung;

Fig. 2.2

Draufsicht entsprechend Fig. 2.1, jedoch in einer abgewandelten Ausführung des Filtermaterialbeutels;

Fig. 2.3

Perspektivische Ansicht eines Filtermaterialbeutels der Fig. 2.1, jedoch mit eingeklappten Seitenfalten;

Fig. 3.1

Perspektivische Ansicht des beutelseitigen Adapters des ersten Ausführungsbeispiels der Figuren 1.1 bis 1.3;

Fig. 3.2

Perspektivische Ansicht des geräteseitigen Adapters des ersten Ausführungsbeispiels der Figuren 1.1 bis 1.3;

Fig. 3.3

Perspektivische Ansicht der Adaptereinrichtung, zusammengesetzt aus dem beutelseitigen Adapter gemäß Fig. 3.1 und dem geräteseitigen Adapter gemäß Fig. 3.2;

Fig. 3.4

Vergrößerte geschnittene Ansicht aus Figur 3.3.

Further features and advantages of the invention result from the following description in conjunction with figures. show:

Figure 1.1

Plan view of a first embodiment of the vacuum cleaner filter bag device;

Figure 1.2

side view in Figure 1.1 ;

Figure 1.3

Perspective view in Figure 1.1 ;

Figure 2.1

Top view of the filter material bag of the first embodiment of Figures 1.1 to 1.3 , shown individually with side gussets folded out and without adapter device;

Figure 2.2

According to top view Figure 2.1 , but in a modified version of the filter material bag;

Figure 2.3

Perspective view of a filter material bag Figure 2.1 , but with folded gussets;

Figure 3.1

Perspective view of the bagside adapter of the first embodiment of FIG Figures 1.1 to 1.3 ;

Figure 3.2

Perspective view of the device-side adapter of the first embodiment Figures 1.1 to 1.3 ;

Figure 3.3

Perspective view of the adapter device assembled from the bag-side adapter according to FIG Figure 3.1 and according to the device-side adapter Figure 3.2 ;

Figure 3.4

Enlarged sectional view Figure 3.3 .

The embodiment shown in the figures is a vacuum cleaner filter bag device 1. It comprises a filter material bag 2 and an adapter device 3. In the Figures 1.1 to 1.3 the vacuum cleaner filter bag device 1 is shown as an assembly. When used in a vacuum cleaner device, this assembly is connected to a device socket, not shown, of the suction pipe of the vacuum cleaner when used in the filter bag receiving space of the vacuum cleaner. The adapter device 3 consists of an adapter 3b on the bag side and an adapter 3g on the device side. In the case of the exemplary embodiment shown, the adapters 3b and 3g are two separate components. These two adapters are in the Figures 3.1 and 3.2 shown in detail. The bag-side adapter 3b is in the assembly of Figures 1.1 to 1.3 permanently connected to the filter material bag 2.

The device-side adapter 3g is used for connection to the device connector, not shown, of the suction pipe of the vacuum cleaner. Both adapters 3b and 3g each have a main body with a substantially tubular shape, each with a passage.

To connect the bag-side adapter 3b and the device-side adapter 3g, the device-side adapter 3g is inserted into the passage of the bag-side adapter 3b in the connection position. Figure 3.3 show the Adapter device in its assembled assembled position as in the assembly of Figures 1.1 to 1.3 present. The two passages of the adapters 3b and 3g form a common passage in this assembled position.

The filter material bag 2 is in Figure 2.1 shown as a loose, unfolded pouch. The bag is made of one or more layers of filter material. It has an essentially bottle-shaped contour with a bag belly 2bb and a bag neck 2bh. The length of the circumference of the bag neck 2bh is substantially shorter than the length of the circumference of the bag belly 2bb. The aspect ratio is approximately 0.5 in the illustrated embodiment. This applies to the unfolded state of the bag as shown in Figure 2.1 is shown. The bag consists of two congruent blanks, which are each formed symmetrically to their longitudinal central axis. These two blanks lie congruently one on top of the other and are each welded at their opposite side edges via a longitudinal weld seam 24 . The two blanks are welded to one another via a transverse weld seam 25 on their end face on the right in the illustration. On the opposite end, the blanks around the longitudinal center line form the bag neck 2bh, which is open towards the end, forming the bag inlet opening 2e. The four corner areas are connected via oblique or curved weld seams 26 .

Figure 2.2 shows a opposite Figure 2.1 Modified embodiment of the filter material bag 2. The modification compared to the filter material bag in Figure 2.1 is that the filter material bag in Figure 2.2 is made from a single blank. This is welded at its adjoining longitudinal edges only via a longitudinal weld seam 24 . the Faces are the same with the same seams 25, 26 as in the embodiment of Figure 2.1 educated.

In the assembly used in the vacuum cleaner Figures 1.1 to 1.3 the filter material bag 2 is designed as a flat bag. Side folds are turned in on the opposite side edges. These are side folds that can be everted and are everted during operation in the vacuum cleaner. Figure 2.3 Fig. 1 shows the filter material bag 2 in the folded state to be installed in the vacuum cleaner. In contrast to conventional flat bags, which have a rectangular contour when folded and in which the bag inlet opening is formed on the flat upper or lower side, the flat bag is in the assembly group Figures 1.1 to 1.3 the bag inlet opening 2e on an end face and the side folds formed on the side edges that can be turned out are designed such that the flat bag in the folded state with the side folds turned in has a conical contour diverging from the end face with the bag inlet opening 2e. When the vacuum cleaner is switched on, the gussets fold out automatically under the application of suction pressure in the bag receiving space.

the inside Figure 3.1 The bag-side adapter 3b shown consists of a sleeve-shaped connecting piece 3ba to which a closure cover 3bv is articulated. On the outside of the connecting piece 3ba, the bag neck 2bh is welded over its entire surface with its inner wall. The edge of the bag inlet opening 2e formed at the end of the bag neck 2bh rests on the outside of the connecting piece 3ba directly below its upper edge.

The device-side adapter 3g, which is in Figure 3.2 is shown in an individual representation, has a connection end 3ga, which is designed as a receptacle for the device socket, not shown, of the vacuum cleaner suction pipe. The device-side adapter 3g has at its other end a tubular extension 3gf, to which a non-return valve 3gr is articulated.

In the in the Figures 1.1 to 1.3 In the assembly of the filter bag device shown, the bag-side adapter 3b with the filter material bag attached to it is plugged onto the device-side adapter 3g in such a way that the tubular extension 3gf with the non-return flap 3gr protrudes into the filter material bag. The connection of the bag-side adapter 3b to the device-side adapter 3g takes place in that the inside of the sleeve-shaped connecting piece 3ba of the bag-side adapter 3b rests on the outside of the device-side adapter 3g. In this area, the outside of the device-side adapter 3g has a plurality of concentric sealing lips 3gs, which interact with the resting inner wall of the connecting piece 3ba of the bag-side adapter 3b, forming a dust-tight seal. This connection between the bag-side adapter 3b and the device-side adapter 3g is a detachable plug connection. To stabilize this connection, connection clips (not shown) can also be provided, which are supported on the one hand on the adapter 3b on the bag side and on the other hand on the adapter 3g on the device side.

The non-return flap 3gr articulated on the tubular extension 3gf is elastically articulated in such a way that it closes automatically whenever the suction operation of the vacuum cleaner is switched off. It remains in the closed position shown until suction operation is stopped again and prevents in the closed position so that the dust already sucked into the filter material bag falls out of the bag when the suction operation is switched off, ie falls back through the adapter into the device socket 4.

To replace the filled filter material bag 2, it can be provided that the plug-in connection between the bag-side adapter 3b and the device-side adapter 3g is released by first releasing the clip connection (not shown) and then the bag-side adapter 3b with the filter material bag 2 attached to it from the device-side adapter 3g is deducted. The closure cover 3bv articulated on the bag-side adapter 3b can then be manually brought into its closed position, in which it covers the passage of the bag-side adapter 3b.

Alternatively, in order to replace the filled filter material bag 2 , the device-side adapter 3g can be detached from the device connection piece 4 . In this case, the bag-side adapter 3b is not detached from the device-side adapter 3g, but the entire unit consisting of the device-side adapter 3g, bag-side adapter 3b and filter material bag 2 is detached from the device connector 4 and then the closure lid 3bv, which is hinged to the bag-side adapter 3b, is manually moved into its closed position brought, in which he covers the passage of the device-side adapter 3g.

Reference List

1

Vacuum cleaner filter bag device

2

filter material bag

2e

bag inlet opening

2bb

pouch belly

2bh

bag neck

24

longitudinal weld

25

transverse weld

26

inclined and/or curved weld seam

2sf

gusset

S

Axis of symmetry of the filter material bag

3

adapter

3b

bag-side adapter

3ba

sleeve-shaped connection piece

3bv

cap

3g

device-side adapter

3ga

connection end

3gr

check valve

3gf

tubular extension

3gs

sealing lip

Claims (15)

1. Filter bag device (1) for a vacuuming device, comprising

   - a filter material bag (2), which is formed from a single-ply and/or multi-ply filter material and has an elongated base configuration with a bag inlet opening (2e) on the end of its longitudinal extension and

   - an adapter device (3) having an adapter (3b) on the side of the bag to which adapter the filter material bag (2) is attached, and an adapter (3g) on the side of the device to which adapter the vacuuming device is attachable,

   - wherein the adapter (3b) on the side of the bag has a passage, and the adapter (3g) on the side of the device has a passage, and the passage of the adapter (3b) on the side of the bag and the passage of the adapter (3g) on the side of the device form a common passage of the adapter device (3), and

   - wherein the adapter (3g) on the side of the device and the adapter (3b) on the side of the bag are formed as a single piece or are formed as separate components that are connected to each other releasably or permanently,

   wherein it is provided that

   a) the adapter (3b) on the side of the bag has an attachment end (3ba) connected to the passage of the adapter (3b) on the side of the bag, to which attachment end the filter material bag (2) is attached or is attachable in the region of its bag inlet opening (2e),

   b) the adapter (3g) on the side of the device has an attachment end (3ga) connected to the passage of the adapter (3g) on the side of the device, to which attachment end a support of the vacuuming device is attachable,

   c) the adapter (3g) on the side of the device is formed by engaging in the passage of the adapter (3b) on the side of the bag,

   d) the filter material bag (2) has a bag pouch (2bb) and a bag neck (2bh), wherein the bag inlet opening (2e) is formed on the end of the bag neck (2bh) and, in the operating position, the periphery of the bag neck (2bh) is smaller than the periphery of the bag pouch (2bb),

   e) the attachment of the filter material bag (2) to the adapter (3b) on the side of the bag is formed in such a way that the attachment end (3ba) of the adapter (3b) on the side of the bag is formed as a support-shaped attachment end (3ba), and the bag neck (2bh) of the filter material bag (2) is applied with its outside on the inside of the support-shaped attachment end (3ba) or with its inside on the outside of the support-shaped attachment end (3ba), characterised in that it is provided that

   f) the filter material bag (2) is formed as a flat bag, the first end face edge of which, formed transversely to the longitudinal extension, is formed by the end of the bag neck (2bh) having the bag inlet opening (2e), and the second end face edge of which, formed transversely to the longitudinal extension, is formed by the base-side end of the bag pouch (2bb),

   g) the filter material bag (2) has an axis of symmetry (S) along its longitudinal extension, in such a way that the bag neck (2bh) extends along the axis of symmetry (S), and the first end face edge and the second end face edge extend transversely to the axis of symmetry (S), and a side edge extends respectively on both sides of the axis of symmetry (S),

   h) the filter material bag (2) is formed with two completely eversible side folds (2sf), which, in the operating position with everted side folds, is formed with two everted corners in each case in such a way that the bag neck (2bh) is formed as a substantially conically diverging portion by a cylindrical portion and a transition portion to the bag pouch (2bb),

   i) the filter material bag (2) with pushed-in side folds (2sf) is formed in such a way that the two pushed-in side folds (2sf) each extend out beyond the longitudinal extension of the bag pouch (2bb) into the transition region of the bag neck (2bh) in such a way that

   the filter material bag (2) with pushed-in side folds (2sf) is formed to be conically diverging in its longitudinal extension in the direction from the bag neck (2bh) to the bag pouch (2bb) up to the base-side end of the bag pouch.
2. Filter bag device (1) according to one of the preceding claims,
   characterised in that

   the filter material bag (2) formed as a flat bag is formed from two congruent filter material blanks, which are connected on opposite side edges by two longitudinal seams (24), wherein the filter material bag (2) is preferably formed symmetrically, and the two longitudinal welded seams (24) are arranged on both sides of the axis of symmetry (S);

   or

   the filter material bag (2) formed as a flat bag is formed from a single- or multi-ply filter material blank and has only one longitudinal seam (24), which connects adjacent side edges of the filter material blank to one another, wherein the filter material bag (2) is preferably formed symmetrically, and the longitudinal edges lie in parallel to one another on both sides of the axis of symmetry (S).
3. Filter bag device (1) according to one of the preceding claims,
   characterised in that
   the filter material bag (2) formed as a flat bag has connecting seams (26) in a region of four corners, said connecting seams connecting the filter material in the region of the four corners and running obliquely or in a curved manner.
4. Filter bag device (1) according to one of the preceding claims,
   characterised in that
   the filter material bag (2) in the operating position has a longitudinal extension, which is formed in such a way that 10% to 30% of the longitudinal extension is formed by the bag neck (2bh) including the transition portion to the bag pouch (2bb) and 70% to 90% of the longitudinal extension by the bag pouch (2bb).
5. Filter bag device (1) according to one of the preceding claims,
   characterised in that
   the periphery of the bag neck (2bh) is smaller than the periphery of the bag pouch (2bb) by a factor of 0.5.
6. Filter bag device (1) according to one of the preceding claims,
   characterised in that
   the bag neck (2bh) is connected to the support-shaped attachment end (3ba) of the adapter (3b) on the side of the bag by means of an ultrasonic welded connection or an adhesion connection.
7. Filter bag device (1) according to one of the preceding claims,
   characterised in that

   - the adapter device (3) has a closure (3bv) for closing the passage of the adapter device (3) and/or the bag inlet opening (2e); and/or

   - the adapter (3b) on the side of the bag has a closure (3bv) for closing the passage of the adapter (3b) on the side of the bag and/or the bag inlet opening (2e); and/or

   - the adapter (3g) on the side of the device has a closure (3bv) for closing the passage of the adapter (3g) on the side of the device and/or the bag inlet opening (2e).
8. Filter bag device (1) according to claim 7,
   characterised in that
   the closure (3bv) is arranged on the adapter (3b) on the side of the bag or on the adapter (3g) on the side of the device and is preferably formed as a moveably mounted cover (3bv).
9. Filter bag device (1) according to one of the preceding claims,
   characterised in that
   a check valve (3gr) is arranged on the adapter (3g) on the side of the device or on the adapter (3b) on the side of the bag.
10. Filter bag device (1) according to claim 9,
    characterised in that
    the check valve (3gr) is arranged on the adapter (3g) on the side of the device or on the adapter (3b) on the side of the bag, the check valve (3gr) is arranged inside the filter material bag (2), preferably in the region between the end of the bag neck (2bh) having the bag inlet opening (2e) and the bag pouch (2bb).
11. Filter bag device (1) according to claim 9 or 10,
    characterised in that
    the check valve (3gr) is arranged on a support extension of the adapter (3g) on the side of the device, said support extension engaging through the adapter (3b) on the side of the bag.
12. Filter bag device (1) according to one of the preceding claims,
    characterised in that
    the adapter (3b) on the side of the bag and the adapter (3g) on the side of the device are formed as separate components, which are connected to each other in a dust-tight manner.
13. Filter bag device (1) according to one of the preceding claims,
    characterised in that
    the adapter (3g) on the side of the device engaging in the passage of the adapter (3b) on the side of the bag has at least one peripheral sealing lip (3gs), preferably several concentrically peripheral sealing lips (3gs), on its outside, said sealing lip(s) interacting with the inner wall of the passage of the adapter (3b) on the side of the bag.
14. Filter bag device (1) according to one of the preceding claims,
    characterised in that
    the bag neck (2bh) of the filter material bag (2) is permanently connected to the adapter (3b) on the side of the bag, preferably by means of a welded connection, and the adapter (3g) on the side of the device is releasably connected to the adapter (3b) on the side of the bag and is preferably formed to be reusable.
15. Filter bag device (1) according to claim 14,
    characterised in that
    the releasable connection is formed as a clip connection.

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