DE102012214220B4 - Airbag arrangement for a motor vehicle - Google Patents

Abstract

An airbag arrangement for a motor vehicle, comprising - an airbag (1) which is inflatable to protect a vehicle occupant of the motor vehicle by means of a gas generator (2), wherein - the airbag (1) at least a first fixation area (201) and at least one second fixation area (202 ), by means of which the gas bag (1) is connected to at least one first attachment region (501) and at least one second attachment region (502) of the vehicle seat (5), and wherein - the gas bag (1) extends beyond the first attachment region (201) is connected to the first fastening region (501) and to the second fastening region (502) via the second fixing region (202) such that the gas bag (1) extends at least partially around at least a portion of a region (51) extending along the vertical vehicle axis (Z) ) of a main body (50) of the vehicle seat (5), characterized in that the first and / or the second fixing region (201, 202) is connected to the first or second attachment region (501, 502) via at least one material reservoir (6) for gas bag material, wherein the material reservoir (6) is designed during the expansion of the gas bag (1) during inflation of the gas bag (1). Airbag material to provide until reaching a planned expansion end state, and that the gas bag (1) in an inflated state at least one kink or fold between a first portion (10) and a second portion (11) of the gas bag (1) formed in such a manner in that the gas bag (1) at least partially encloses the extended area (51) of the base body (50) of the vehicle seat (5).

Description

The present invention relates to an airbag arrangement for a motor vehicle according to claim 1.

It is known to integrate a side gas bag in a vehicle seat of a motor vehicle, which ensures a corresponding to the vehicle environment adapted deployment of the airbag from a combination of rolling and Stülpfaltung in the event of a collision. Furthermore, directional guiding elements for positioning the deployed airbag are known, which, however, have the disadvantage of high demands on price, volume and weight. The problem with the use of standard airbags as side airbags is the special adaptation in terms of their size and folding to the respective vehicle environment, which is associated with high development costs.

Furthermore, the use of seat back inner airbags in a vehicle seat of a motor vehicle is known. The use of such an airbag has the significant advantage that in the event of a collision, a connection of the airbag to the vehicle occupant can be made quickly. However, such an airbag also has the disadvantage that there is a late connection of the occupant to the vehicle structure intruding in the event of a collision.

From the publication WO 2010/007 055 A1 It is known to arrange an unfolded or provided only with a fold or only with a protuberance gas bag before inflation between a padding and a reference of a vehicle seat. In this case, the gas bag is designed and arranged so that it expands predominantly in the direction of the vehicle occupant when it is inflated in the event of a collision. The use of an airbag which is fixed to a seat foam or seat cover of a vehicle seat, for example, from the GB 2 357 999 A and the DE 10 2011 081 144 A1 known.

Furthermore, the describes EP 157 71 72 A2 the use of a gas bag, which has a fold when inflated. The document describes a curtain airbag for protecting a head of a vehicle occupant, which has a substantially ">" or "☐" shape and the airbag is configured such that by this shape, the head of a vehicle occupant in the event of a collision early in contact with the airbag occurs and an "impact shock" is absorbed over a longer period of time.

In the DE 10 2009 040 641 A1 a headrest of a vehicle seat is disclosed, are formed on the left and right padding ears in the form of sections of a gas bag, which unfold in the case of activation of a module in the vehicle seat.

The problem to be solved by the invention is to provide an easily realizable and efficient protection for a vehicle occupant located on a vehicle seat.

This problem is solved by the gas bag arrangement according to claim 1. Further developments of the invention are specified in the dependent claims.

• – einem Gassack, der zum Schutz eines Fahrzeuginsassen des Kraftfahrzeuges mittels eines Gasgenerators aufblasbar ist wobei
• – der Gassack wenigstens einen ersten Fixierungsbereich und wenigstens einen zweiten Fixierungsbereich aufweist, mittels derer der Gassack mit wenigstens einem ersten Befestigungsbereich und wenigstens einem zweiten Befestigungsbereich des Fahrzeugsitzes verbunden ist, wobei
• – der Gassack derart über den ersten Fixierungsbereich mit dem ersten Befestigungsbereich und über den zweiten Fixierungsbereich mit dem zweiten Befestigungsbereich des Fahrzeugsitzes verbunden ist, dass sich der Gassack zumindest teilweise um wenigstens einen Abschnitt eines entlang der vertikalen Fahrzeugachse Z erstreckten Bereichs eines Grundkörpers des Fahrzeugsitzes (insbesondere herum) erstreckt.

The invention relates to an airbag arrangement for a motor vehicle with

• - An airbag which is inflatable to protect a vehicle occupant of the motor vehicle by means of a gas generator
• - The gas bag has at least a first fixation region and at least a second fixation region, by means of which the gas bag is connected to at least a first attachment region and at least a second attachment region of the vehicle seat, wherein
• - The gas bag is connected via the first fixing region with the first mounting portion and the second fixing portion with the second mounting portion of the vehicle seat, that the gas bag at least partially around at least a portion of a vertical axis Z extending portion of a base body of the vehicle seat (in particular around).

It is provided that the first and / or the second fixing region is connected via at least one material storage for airbag material with the first or second attachment region, wherein the material storage is adapted to during the expansion of the airbag during inflation of the airbag airbag material until reaching a designated To provide expansion end state. In addition, when inflated, the gas bag has at least one kink or fold between a first section and a second section of the gas bag. In this case, the kink or the fold is formed such that the gas bag at least partially surrounds the extended region of a base body of the vehicle seat.

Consequently, during the inflating of the gas bag, gas bag material is drawn from the material reservoir until a final state is reached and the gas bag is completely inflated (expansion end state), whereby the gas bag tightens due to the two-sided attachment via the fixing regions with the attachment regions themselves.

This ensures that after complete inflation of the gas bag (ie when reaching an expansion end state) this due to the two-sided attachment of the fixation with the attachment areas, wherein the first and / or the second fixation region via a material storage for airbag material with the first or second attachment area is connected, the gas bag tightens itself and thus receives an inherent rigidity. In this case, the vehicle occupant - in response to the filling of the gas bag by gas from the gas generator - are better kept in the seat. In this case, the attachment of the fixation areas with the attachment areas is designed so that it does not come loose even with an expansion of the gas bag.

In particular, the base body may be a seat frame of the vehicle seat, and the extended area may be a section of a backrest frame, in particular a backrest cheek. Alternatively, the extended region may also be composed of a section of a backrest frame, in particular a backrest cheek, and a seat foam assigned to the corresponding section of the backrest frame.

In this case, the material storage can be designed such that the material to be provided is arranged by folding, Chaosfaltung or stuffing in a suitable space of the vehicle seat. The material storage can be mounted for example in the rear space of the vehicle seat or in the vehicle seat. Also, the material storage can be arranged under the seat cover. In particular, the material reservoir can be arranged on the outside of a side cheek of a vehicle seat or on the corresponding inner side under the seat cover.

Alternatively, the material storage can also be arranged in a material supply device in which the airbag material is folded or stuffed, in order to provide further airbag material in a simple manner in the case of expansion of the airbag. The material supply device may, for example, have the form of a corresponding housing which is designed to provide airbag material accommodated by means of folding or stuffing in the housing during inflation of the gas bag. In this case, in particular a rolling device can be provided, which is designed so that the airbag material can be unrolled and made available during the inflation of the airbag.

In this case, the gas bag can be arranged prior to inflation at the extended portion of a body of the vehicle seat that it extends along the extended area, wherein the extended area has a side facing a vehicle occupant intended to protect and another side, the the intended purpose to be protected vehicle occupant turned away. In this case, the gas bag can be arranged such that it comprises both sides of the extended region in the uninflated state. Such an arrangement of the gas bag ensures, in particular, rapid filling and placement of the gas bag. In this case, the gas bag can be arranged before inflation between a backrest frame and the backrest frame associated seat foam.

Alternatively, the gas bag before inflation between a seat cover and a - the extended area, such as a back frame, associated seat foam be arranged, the arrangement can be done in the uninflated state analogous to the arrangement just described.

In particular, it can be provided that the seat cover is designed such that it tears when inflating the gas bag. Material weaknesses or seams may be provided which facilitate the tearing of the seat cover at these locations when inflating a gas bag. Alternatively, the seat cover can be done solely by the deployment force of the gas bag.

In particular, the first and second sections in the inflated state each have a first side and a second side, wherein the two first sides facing the extended region of the main body of the vehicle seat. Here, the extended area is understood to mean the area that extends along the vertical vehicle axis Z of a main body of the vehicle seat and lifts off from a plane in which the main body of the vehicle seat extends, wherein the extending direction of the extended area differs depending on the main body is. In the case of a backrest as the main body of the extended area in the direction of the vehicle front or obliquely to the headliner - depending on the position of the pivotally formed backrest - aligned. In the case of a seat as a base body of the extended area is oriented substantially in the direction of the headliner. The extended area is therefore in front of the plane that forms the body.

Furthermore, the first side of the first section substantially faces the portion of the extended area which faces a vehicle occupant to be protected as intended, ie the outside of the extended area. On the other hand, the first side of the second section is the section of the extended area that belongs to it as intended facing away from protective vehicle occupant, ie the inside, facing. Turning now to Fig. 2, it is to be understood that the respective sides extend parallel or obliquely to the outside and inside of the extended area, respectively. In particular, it can be provided that the two first sides of the first and second sections bear against the inside or the outside of the extended area.

In this case, it may be provided that the gas bag comprises the extended region such that the second section completely encloses the outer side of the extended region and the first section partially encloses the inner side of the extended region, whereby a partial region of the inner side of the first section of the gas bag relative to the first Vehicle occupant is covered such that the first portion between the portion of the extended area and the vehicle occupant is arranged. Alternatively, it can also be provided that the first and second sections completely cover the extended area. It can also be provided that the first and second regions encompass the entire extended region.

Furthermore, in the inflated state, the second side of the first section faces a vehicle occupant occupying the vehicle seat as intended, whereas the second side of the second section faces away from it. It can be provided that the first and the second portion are integrally formed. Alternatively, it can also be provided that the first section and the second section are formed from one or more chambers. In particular, when inflated, the gas bag substantially has a shape which varies between the shapes "□" and "↑".

In particular, it can be provided that the first and the second region are formed and fixed to the attachment regions in such a way that a kink or a fold of the gas bag is present substantially in the apex region of the extending region. Here, the apex region is to be understood as the region which has the greatest distance from the plane in which the main body extends. Due to the kink or the fold of the gas bag in the inflated state, the extended region of the basic body (such as, for example, a back frame) is covered by the inflated gas bag. This gives the vehicle occupant in the event of a collision, a quick power coupling to the seat and undergoes a movement in the center of the vehicle, the airbag by the kink or the fold has a higher "thickness" than conventional side airbags. As a result, a vehicle occupant experiences a better force coupling to the seat and the absorption effect of the gas bag is increased.

Furthermore, it can be provided that the first attachment area is spaced in the direction of the vehicle transverse axis to the second attachment area. In particular, the attachment areas may be arranged such that a mounting area is located substantially near the outside of the extended area and the further mounting area is substantially near the inside. It can also be provided that the first fastening region is spaced from the second fastening region such that the distance between the two fastening regions is greater than the minimum width, in particular greater than the maximum of the extended region, the width of the extended region being measured along the vehicle transverse axis becomes.

Alternatively it can be provided that the gas bag extends in front of the inflation area on the extended area and at least partially comprises the extended area. In particular, it can be provided that the gas bag completely covers the extended area before inflation. In other words, the gas bag extends flat from the outside of the extended area over the vertex to the inside. It can be provided in particular that the gas bag - when not inflated - after embracing the inside within the vehicle seat extends (through a corresponding opening in the body of the vehicle seat) and there is optionally connected to the first mounting area.

It can also be provided that the first fastening region is arranged on a partial element of the vehicle seat, on the material reservoir or the gas generator, and the at least one second fastening region is arranged on a partial element of the vehicle seat, on the material reservoir or the gas generator. In this case, a sub-element of a vehicle seat is to be understood as a section, area or element of a vehicle seat from which the vehicle seat is formed, such as, for example, the seat skeleton or the seat cushion of a vehicle seat. Consequently, the attachment areas may be arranged, for example, each on a sub-element of the vehicle seat. An arrangement of the first fastening region on a partial element of the vehicle seat and the second fastening region on the gas generator is also conceivable. Any further combinations with regard to the arrangement of the attachment regions (such as, for example, in each case on the material reservoir and the gas generator) are conceivable. In this case, for example, a connection of the fixing areas with the fastening areas can take place by jamming or gluing.

Furthermore, the attachment regions can each have a fastening element for connecting the attachment region to the fixing region. In particular, the fastening element is arranged inside the vehicle seat and designed as a clamping, screwing, latching or adhesive element. As a result, the first and second fixing portions are connected by means of the respective fixing member of the first and second fixing portions. In this case, this compound is designed so that it does not dissolve even with an expansion of the gas bag. In particular, the fastening areas or the fastening elements are arranged inside the vehicle seat.

For example, the first fixation region of the gas bag can be connected by means of a screw connection within the vehicle seat to a first attachment region which is substantially adjacent to the vehicle occupant-facing section of the extended region. The first attachment area is thus located, for example, in the vicinity of the inside of a side cheek of a backrest of a vehicle seat. Furthermore, the second fixing region can be connected to a fastening region arranged on a gas generator, wherein the gas generator is arranged inside the vehicle seat in the vicinity of the outer side of the extended region, which faces away from a vehicle occupant intended to be protected. For example, the gas generator may be disposed within the vehicle seat on an outer side of a side cheek.

It can be provided that the fixing of the airbag are arranged on the gas bag, that they are arranged in an inflated state at the first or second portion of the airbag, that is, at a portion which is filled with gas. An arrangement on a region of the gas bag, which can not be inflated is conceivable.

In an alternative embodiment, it can be provided that the first fastening region is arranged on the seat cover and is connected to the first section of the gas bag via the first fixing region. When the gas bag is inflated, the seat cover tears and the gas bag may unfold into the vehicle compartment. The seat cover may be configured such that it has appropriate material weakening or seams that tear when inflating a gas bag or tearing takes place solely by the force of the deployment of the gas bag. In this case, the first fastening region is connected to the first fixing region by means of, for example, a seam or an adhesive connection in such a way that a partial section of the seat cover remains firmly connected to the first fixing region in the event of inflation of the gas bag despite the tearing of the seat cover. As a result of the connection of the first fixing region to the first fastening region on the seat cover, the propagation form and direction of propagation of the gas bag can be predetermined in a simple manner.

In an alternative embodiment, the gas bag arrangement can have two material supply devices, in particular two unwind devices, wherein the attachment regions of the vehicle seat can each be arranged in a material supply device, in particular a unwind device.

Furthermore, it can be provided that the gas bag is filled in the event of a collision by means of the gas generator such that the first section or the second section are first filled with gas. For example, the gas generator may be arranged in the seat rear side of a vehicle seat and first fill the first section of the gas bag with gas through the seat foam. Consequently, the gas bag is first inflated on the inner side of the backrest directly in the vicinity of a vehicle occupant intended to be protected. As a result of the further expansion of the gas bag, additional airbag fabric is drawn over the back of the backrest from a material reservoir. Alternatively, the gas generator may also first fill the second portion of the gas bag on the outside of a backrest cheek, and during inflation additional gas bag material is drawn over the inside of the back cheek and through the seat foam from a material reservoir located in the seat back.

In an alternative embodiment, the gas bag can be filled in the event of a collision by means of the gas generator such that the first section and the second section are filled with gas substantially simultaneously. The gas generator may, for example, via channels, the first portion which is arranged on a backrest inner side and the second portion, which is arranged on a back outside. It can be provided that the gas bag consists of one or more chambers. In particular, during the expansion of the gas bag, the gas bag material (as described above) can be retightened over one side of the extended region of the body of the vehicle seat. Alternatively, it is also possible, for example, for two material stores to be provided, which are designed, for example, as an unwinding device, wherein the first and second fixing areas are each connected to a fastening area arranged in the unwinding devices. Thus, the gas bag material may expand over both the extended area upon expansion of the gas bag from both sides be retightened until an expansion end condition is reached.

In an alternative embodiment, it may be provided that the gas bag arrangement has at least one guy strap, which is connected to the first section of the airbag via a first end via the first fixation region and to the first attachment section via a second end, such that the at least one anchor strap is one Providing connection of the first section with the first attachment area. By using the Abspannbands the propagation shape and the propagation direction of the airbag can be specified and thus the support and holding function of the airbag are controlled against a vehicle occupant intended to be protected.

Alternatively, the gas bag arrangement may also have a second guy strap, the second guy strap having a first end connected to the second portion of the gas bag via the second fixation area and to the second attachment area via a second end. Thereby, the first guy band can provide a connection of the first portion to the first attachment area and the second guy band can provide a connection of the second portion to the second attachment area.

In one embodiment, it can be provided that at least one guy band is arranged inside the material store. Alternatively, the at least one tensioning band can be arranged inside the material supply device, in particular within the unwinding device. In this case, the tensioning band can be connected to a fixing region of the gas bag and fixed with a fastening area arranged in the material supply device such that upon reaching an expansion end state - for example after complete unwinding of the airbag fabric and the Abspannbands from the unwinding device - the propagation shape and direction of propagation of the airbag through the Tensioning band is specified and thus the support and holding function of the gas bag is preset. Alternatively, two guy bands within each material supply device or also a first and a second guy strap can be arranged within only one material supply device, in particular a roll-off device.

In a further embodiment, the gas bag has at least one further section which is arranged between the first section and the second section of the gas bag, wherein the gas bag has at least one kink or fold between the first section and the further section and at least one further kink or have a further fold between the further section and the second section. In this case, the kinks or the folds can be formed such that the gas bag almost completely comprises a region of a base body of the vehicle seat which extends along the vertical vehicle axis. Alternatively, the gas bag may additionally have sections with further creases or folds which are arranged between the first section and the second section.

In an alternative embodiment, the gas bag may have at least one defined fold, which is designed such that a kink or a fold of the gas bag preferably takes place at this point. Thereby, a predefinition of the propagation shape and the propagation direction of the gas bag is achieved, whereby the supporting and holding function of the gas bag is adjustable.

In an alternative embodiment, at least one load distributor can be arranged on the gas bag, which is designed such that it distributes the forces acting on a vehicle occupant intended to be protected as evenly as possible. As a result, a fast and uniform force coupling of the vehicle occupant is achieved to the seat and acting on the intended purpose to be protected vehicle occupant forces are distributed uniformly, so that the risk of injury to a vehicle occupant is reduced in the event of a collision.

The invention is not limited to use of the gas bag with respect to an extended region of a backrest, but it can also be provided that the gas bag in the inflated state comprises the extended region of a seat surface of a vehicle seat.

The invention will be explained in more detail with reference to the figures of the drawings with reference to several embodiments. Show it:

1 an airbag assembly according to a first embodiment of the invention in a schematic plan view;

2 the first embodiment according to 1 in a schematic side view;

3 an airbag assembly in a schematic cross section according to a second embodiment of the invention;

4 a schematic cross section of an airbag assembly according to a third embodiment of the invention;

5 a schematic cross section of an airbag assembly according to a fourth embodiment of the invention;

6 a schematic cross section of an airbag assembly according to a fifth embodiment of the invention;

7 a schematic cross section of an airbag assembly according to a sixth embodiment of the invention;

8th a schematic cross section of an airbag assembly according to a seventh embodiment of the invention;

9 a schematic cross section of an airbag assembly according to an eighth embodiment of the invention;

10 a schematic cross section of the airbag assembly according to 9 with a shorter guy band;

11 a schematic cross section of an airbag assembly according to a ninth embodiment of the invention;

12 a schematic cross section of an airbag assembly according to a tenth embodiment of the invention;

13 a schematic front view of an airbag assembly according to an eleventh embodiment of the invention in an inflated state;

14 a schematic cross section of the embodiment according to 13 in a deflated state;

15 a schematic cross section of an airbag assembly according to a twelfth embodiment of the invention;

16 a schematic cross section of an airbag assembly according to a thirteenth embodiment of the invention;

17 a schematic cross section of an airbag assembly according to a fourteenth embodiment of the invention;

18 a schematic cross section of an airbag assembly according to a fifteenth embodiment of the invention;

19 a schematic cross section of an airbag assembly according to a sixteenth embodiment of the invention;

20 a schematic cross section of an airbag assembly according to 19 with shorter guy bands;

21 a schematic cross section of an airbag assembly according to a seventeenth embodiment of the invention;

22 a schematic cross section of an airbag assembly according to an eighteenth embodiment of the invention.

23 a schematic cross section of an airbag assembly according to a nineteenth embodiment of the invention.

24 a schematic cross section of an airbag assembly according to a twentieth embodiment of the invention.

The 1 shows an airbag assembly according to the invention for a motor vehicle with an inflated to protect a vehicle occupant of the motor vehicle airbag 1 , In this case, the gas bag is above a first fixing region with a first fastening region of the vehicle seat and via a second fixing region with a second fastening region of the vehicle seat 5 (not shown here for reasons of clarity, the connection of the gas bag 1 with the vehicle seat 5 will be explained later), so that the gas bag 1 in the inflated state has a kink or a fold. Here is the gas bag 1 in the inflated state is formed so that it has a first portion 10 which is adjacent to a vehicle occupant intended to be protected. Furthermore, the gas bag 1 a second section 11 which is located farther away from and away from a vehicle occupant relative to the first section.

The gas bag 1 is designed in the inflated state such that it passes through the bend or the fold with its first section 10 and its second section 11 an extended area 51 of a basic body 50 a vehicle seat includes at least in sections. The first and second sections 10 . 11 of the gas bag 1 consequently extend around an area extending along the vertical axis Z of the vehicle 51 of a basic body 50 (here the seat frame) of a vehicle seat 5 , In the present case, it is the extended area 51 around a portion of a back frame of the vehicle seat 5 comprising an outer (facing away from a vehicle occupant) and an inner (vehicle occupant facing) side in the form of a backrest cheek. The extended area protrudes 51 from the plane passing through the main body 50 is trained out. Consequently, the extended range 51 - Depending on the setting of the swiveling seat frame - aligned in the direction of travel or obliquely in the direction of the car's headliner.

In this case, the first and the second section 10 . 11 each a first page 101 . 111 and a second page 102 . 112 on, with the first pages 101 . 111 the extended area 51 are facing. The second page 102 of the first section 10 is facing a vehicle seat occupying the vehicle occupant and the second side 112 of the second section 11 turned away from him. The first and second sections 10 . 11 thus completely cover the extended area 51 and the first pages 101 . 111 lie on the extended area 51 on.

The airbag extends 1 between the seat foam 4 and the seat cover 3 in the embodiment of the 1 torn by the inflating gas bag, so that the gas bag 1 extends into the vehicle interior. By a direct arrangement of the gas bag on a backrest cheek of a vehicle seat 5 will be a quick positioning of the gas bag 1 achieved, which is vehicle and door panel independent. In particular, in comparison with unfolding door panels, a quick positioning of the gas bag is achieved. In the event of a collision, the gas bag arrangement according to the invention provides a fast adhesion with the intended vehicle occupant to be protected, who experiences a forward displacement in the direction of the vehicle center. As a result, there is an increase in the distance between the vehicle occupant to be protected and the next door adjacent to him with simultaneous power connection of the vehicle occupant to the airbag assembly. In the present case, the second section 11 adjacent to a vehicle door having the least distance to the vehicle occupant.

The gas bag 1 is designed such that the vehicle occupant a speed is impressed in the direction of the vehicle center, so that there is a reduction in the resulting impact speed. In particular, allows the symmetrical arrangement of the first and second sections 10 and 11 a high tissue utilization and by the kink or the fold of the gas bag 1 an increased effective thickness is achieved because in the present case by the kink or the fold - a "double airbag layer" is formed. The inflated airbag is "thicker" than a comparable side airbag without such a bend or such a fold.

The 2 shows a schematic side view of the embodiment of 1 , With regard to the explanations of the individual reference numerals is based on the embodiments of 1 directed.

The 3 shows a schematic cross section of a second embodiment of the invention in a non-inflated state of the gas bag 1 , Here is the gas bag 1 between a seat cover 3 and a seat foam 4 a vehicle seat 5 arranged. In the event of a collision and inflation of the gas bag 1 is the seat cover 3 designed such that it by the force of the airbag 1 rips and the gas bag 1 comparable to the embodiment of the 1 extends into the vehicle compartment. Alternatively it can be provided that on the seat cover 3 Material weaknesses or tear seams are arranged, which selectively rupture in the event of a collision during inflation of the gas bag.

In the non-inflated state, the gas bag comprises the extending region at least in sections 51 of the basic body 50 (here the back frame) of the vehicle seat 5 , The gas bag 1 extends over the outer side cheek of the back frame (which faces away from a vehicle occupant) over a vertex of the extended area 51 (wherein the vertex has the maximum distance to the plane in which the back frame extends) to the inner side wall (which faces a vehicle occupant), wherein the gas bag by a foam in the seat 4 provided opening is guided behind the vehicle seat. Furthermore, a gas generator 2 in a space 7 arranged in the backrest frame. The second fixation area 202 of the gas bag 1 is at a designated mounting area 502 at the gas generator 2 set, in such a way that this compound also during inflation of the gas bag 1 does not solve.

Furthermore, in the rear space of the vehicle seat 5 a material storage for airbag material in the form of a rolling device 9 arranged. Here is the first fixation area 201 of the gas bag 1 within the unwinding device 9 with a first attachment area 501 (Not shown here for reasons of clarity) connected in such a way that this compound does not dissolve when inflating a gas bag. The connection of the first and second fixing area 201 . 202 with the first and second attachment area 501 . 502 can be done for example by a screw, adhesive or clamp connection. In particular, for example by means of a jamming of the second fixing region 202 through the gas generator 2 at the second attachment area 502 a solid connection can be generated. In particular, by an arrangement of the material storage (in the form of a rolling device 9 ) outside the visible area in the rear area of the Vehicle seat achieved a low height in the visible range.

In the event of a collision, the gas generator fills 2 over the outer side cheek of the vehicle seat the gas bag 1 , During the expansion process, additional gas bag material is injected over the inside of the backrest cheek by the seat foam 4 through from the arranged on the seat back unwinding 9 tightened. This rips the seat cover 3 during the expansion process. After complete inflation of the gas bag, the gas bag due to the two-sided attachment (here on the gas generator 2 and at the unwinding device 9 ) and thus receives an inherent rigidity comparable to the embodiment of 1 ,

In this case, the gas bag 1 of the 3 in the inflated state, a kink or a fold on and the first and second sections 10 . 11 the inflated gas bag extend comparable to the 1 at least in sections around the extended area 51 of the vehicle seat 5 , It can be provided that portions of the fabric material within the rolling device 9 are designed such that they are not inflatable. Here is the first fixation area 201 of the gas bag 1 for connecting to the first attachment area 501 on the non-inflatable area of the gas bag 1 within the unwinding device (not shown here for reasons of clarity). In the inflated state is thus the first section 10 of the gas bag 1 over the non-inflatable section of the gas bag 1 with the unwinding device 9 connected. In particular, in the inflated state, the non-inflatable region of the gas bag extends 1 through the opening in the seat foam 4 , In this case, the non-inflatable area of the same material as the airbag 1 be formed or have another suitable, resilient material. With regard to the further explanations with respect to the inflated gas bag 1 will be on the remarks of the 1 directed.

The 4 describes a third embodiment of the invention comparable to the airbag arrangement of 3 , The main difference to the arrangement of 3 is that the material storage in the form of a material supply device 8th within a construction space 7 the back frame is arranged and the gas generator 2 in a rear space of the vehicle seat. The positions of the material storage, here the material supply device 8th , and the gas generator 2 are thus opposite to the arrangement of 3 reversed. A filling of the gas bag in the event of a collision thus takes place from the seat back through the seat foam 4 , First, the gas bag blows 1 on the inside of the side wall directly in the vicinity of a vehicle occupant to be protected as intended. By the expansion of the gas bag 1 additional airbag material will be removed from the material supply device via the outer side cheek 8th tightened. The material supply device in this case has a housing, in which by means of folding or stuffing additional airbag material is housed such that it is provided during inflation of the gas bag. With regard to the further explanations, the comments of the 3 directed.

The 5 shows a further embodiment, which is comparable to the embodiment of 3 is. It differs essentially in the form of the material storage 6 for gas bag material. In contrast to 3 becomes the material store 6 arranged in the back of the seating area by means of a simple folding. Alternatively, an arrangement can also be made by a stuffing or chaos folding. Here is the first fixation area 201 with the first attachment area 501 the vehicle seat via a fastener 12 firmly connected. The fastener 12 For example, it can be designed as a hooking, clamping, screwing or adhesive element. The filling of a gas bag 1 in the event of a collision, analogous to the description of 3 , With regard to the configuration of the gas bag in the inflated state is on the comments on the 1 and 2 directed.

The 6 shows a fifth embodiment of the gas bag arrangement according to the invention, which is comparable to the embodiment of 4 is. It differs only by the arrangement of the material storage 6 , which is not present in this case as a rolling device, but by means of a folding in the space 7 the backrest cheek is housed. Also, a clogging of the airbag material in a space provided for this purpose is conceivable. With regard to the operation of the comparable elements and a filling of the gas bag is on the embodiments of 4 referenced (where the second fixation area 202 and the second attachment area 502 have not been shown for reasons of clarity) and with respect to the design of the gas bag 1 in an inflated state is based on the remarks of 1 and 2 directed.

The 7 and 8th show two comparable embodiments of the gas bag arrangement according to the invention, which comparable to the airbag arrangement of 4 are. The embodiments of the 7 and 8th differ in that the second fixation area 202 of the gas bag 1 with the second attachment area 502 of the vehicle seat 5 is firmly connected within the backrest cheek. Furthermore, the material storage 6 by a folding (alternatively also by a stuffing or Chaosfaltung) between the seat cover 3 (not shown for reasons of clarity) and the seat foam 4 of the vehicle seat 5 arranged.

In the case of the embodiment of 7 the material layer is arranged on the inner side wall, whereas in the embodiment of the 8th an arrangement on the outer side wall (which faces away from the vehicle occupant) takes place. With regard to the functioning of the other elements and a filling of the gas bag 1 will be on the remarks of the 4 directed. With respect to the embodiment in the inflated state is on the 1 and 2 directed.

The 9 shows a further embodiment of the gas bag arrangement according to the invention in an inflated state. The airbag assembly has a first section 10 on, the extended area 51 on the inner side wall at least partially, wherein the second section 11 on the outside of the extended area 51 is arranged and this completely covers. In the inflated state is the first page 101 . 102 of the first and second sections 10 . 11 each of the outside and inside of the extended area 51 facing. Furthermore, the second page 111 of the first section 10 one intended to be protected vehicle occupants, whereas the second side 112 facing away from a vehicle occupant and on the outside of the extended area 51 rests. Alternatively, the gas bag 1 be designed in the inflated state also such that the second section 11 although the outside of the extended area 51 fully enclosed in a section, but not resting on it.

Here is the second section 11 of the gas bag 1 with its second fixation area 202 at the second attachment area 502 that is connected to the gas generator 2 is arranged, connected, wherein the gas generator 2 within a construction space 7 is arranged in the backrest cheek. With regard to the further explanations of such a connection, reference is made to the preceding figures.

Furthermore, the first section 10 over a guy band 13 with the vehicle seat 5 connected. Here is the first fixation area 201 of the first section 10 with a first end of the guy band 13 whereas the first attachment area 501 in the back room of the vehicle seat 5 is arranged and the other end of the guy band 13 at the attachment area 501 by means of a fastening element 12 (Such as a clamping or Hakelements) fixed to the vehicle seat 5 connected is. By the length of the guy band 13 It is possible, the shape and propagation direction of the inflated airbag 1 to influence.

Here is the guy band 13 designed, a support function on the side facing a vehicle occupant to be protected (namely, the first section 10 ) at least partially. Thereby put the guy band 13 and the first section 10 the power coupling between the seat and vehicle occupants ago. To what extent the guy band 13 the supporting function and the production of the power coupling takes over, is of the length of the guy belt 13 -dependent. The further the guy strap 13 extends into the vehicle interior (ie the longer the guy strap 13 is formed), the greater is the transfer function just described. In the present case, the guy tape takes over 13 the majority of the support function and provides for the most part the power coupling between the vehicle seat 5 and a vehicle occupant to be protected as intended.

In a non-inflated state, the embodiment of the 9 essentially comparable to the exemplary embodiment of FIG 5 , In the present case, however, is in the material storage 6 next to other gas bag material and the guy band 13 arranged by means of folding or stuffing. With regard to a filling of the gas bag and the operation of other elements is on the embodiments of the 5 directed.

The 10 shows a further embodiment of the gas bag arrangement according to the invention comparable to 9 , In the present case, the airbag arrangement only has a shorter tensioning band 13 on, causing a stronger kinking or a stronger wrinkling of the gas bag 1 he follows. Thus, the first section 10 , compared to the previous embodiment, arranged closer to a vehicle occupant, wherein the first side 101 of the first section 10 a smaller distance to the extended area 51 and the extended area 51 almost completely from the inflated gas bag 1 is included. The assumption of the support function and the production of a power coupling with a vehicle occupant intended to be protected by the guy belt 13 are thus formed smaller. With regard to the arrangement of the gas bag in a non-inflated state and the filling of the gas bag and the operation of the other elements is on the embodiments of the embodiment of 9 directed.

Like the embodiments of the 9 and 10 show is a substantially symmetrical arrangement of the inflated airbag or a complete embracing the airbag 1 in terms of the stretched area 51 not necessarily necessary. By using guy straps in various lengths, the direction of propagation and shape of the gas bag can 1 be adjusted as needed. A symmetrical arrangement of the first and second sections 10 . 11 around the extended area 51 is not mandatory. The size and volume of the two sections 10 . 11 may vary.

The 11 describes a further embodiment of the gas bag arrangement according to the invention. The arrangement of 11 is partially comparable to the previous embodiments of the 9 and 10 , The present case differs in that the gas bag 1 extends out of the vehicle seat when inflated. Here is the guy band 13 chosen in its length and the first fixation area 201 such with a free end of the guy band 13 connected to that the first fixation area 201 inflated to the seat foam 4 a vehicle seat 5 adjoins and the gas bag 1 the extended area 51 completely includes.

Furthermore, the gas bag 1 defined kinks, which are designed such that a kink or a fold of the gas bag 1 in the inflated state takes place at these points. In the present case, the gas bag 1 two such folds, wherein the folds another section 100 between the first section 10 and the second section 11 of the gas bag 1 is trained. The gas bag 1 includes the extended area 51 completely, with the further section 100 substantially opposite the vertex of the extended region 51 arranged. Below the vertex of the extended area 51 is the point to be understood by the level in which the main body 50 (here the backrest) extends, having the greatest distance.

By providing a predetermined fold, the propagation shape and propagation direction of an inflated airbag can 1 be specified. By providing a plurality of folding points, a gas bag in the inflated state receives a plurality of kinks or folds and thereby forms a plurality of gas bag sections, whereby the effective thickness of the gas bag 1 increased in a simple manner without additional cost of materials and the protective function of the airbag is improved against a designated occupant to be protected vehicle occupant.

The 12 shows a further embodiment of the gas bag arrangement according to the invention. With regard to the construction and the operation of this embodiment is substantially similar to the embodiments of the 9 and 10 , so that reference is made to the embodiments of these figures. The main difference is that the first section 10 the inflated gas bag 1 about his fixation area 201 fixed to a first area of the seat cover 3 connected is. Furthermore, the seat cover 3 in the inflated state of the gas bag 1 a mounting area 501 on. Here is the first fixation area 201 such with the first attachment area 501 Connected to this compound is also in an inflated state of the gas bag 1 does not solve. The seat cover 3 forms one of the seat cushion 4 free section 30 (so not one with the seat cushion 4 connected section), which coincides with the first section 10 of the gas bag 1 is connected and facing a designated occupant to be protected vehicle occupant.

When filling the gas bag 1 on the outside of the backrest cheek by means of the gas generator 2 rips the seat cover 3 so on that he does not have one with the gas bag 1 connected free area 3 ' and one of a seat cushion 4 free section 30 who with the gas bag 1 at the first section 10 by means of the first fixation area 201 and with the seat cushion 4 by means of the first attachment area 501 is firmly connected. Such a connection can be made by suitable seams. But a bond is conceivable, for example. The free section fulfills this 30 of the seat cover 3 essentially the same function as the guy band 13 of the 9 and 10 , Alternatively, the material storage 6 also (comparable to the 7 and 8th ) under the seat cover 3 be arranged.

The 13 and 14 show a further embodiment of the gas bag arrangement according to the invention, which substantially with the 1 to 3 is comparable, reference being made to the comments on these figures. The 13 shows an inflated state of the gas bag 1 and the 14 a non-inflated state. The essential difference to that 1 to 3 is that this embodiment is a load distributor 16 has, which is adapted to achieve a better distribution of forces acting on a vehicle occupant to be protected forces at the safety-relevant locations of the airbag assembly. This ensures that the acting forces do not act punctually on a vehicle occupant, but are distributed substantially flat on the contact surface of the vehicle occupant with the airbag assembly.

The 14 shows an arrangement of the load distributor 16 on the second page 102 of the first section 10 of the gas bag 1 that faces a vehicle occupant to be protected. Alternatively, the load distributor 16 also on the first page 101 of the first section 10 or on the first page 111 of the second section 11 between the respective pages 101 . 111 and the extended area. Also an arrangement of the load distributor 16 on the second page 112 of the second section 11 is possible, so that the load distributor 16 is arranged on the side facing away from a vehicle occupant to be protected. Here is the load distributor 16 arranged so that it is stowed outside the visible area in the vehicle seat. Alternatively, an arrangement of several load distributors 16 conceivable.

The 15 and 16 show further embodiments of the gas bag arrangement according to the invention, these essentially with the embodiments of the 5 and 6 are comparable. The main difference is that the first and second attachment area 501 . 502 each at the gas generator 2 are arranged. As a result, for example, a simple jamming of the airbag material by means of the gas generator without the need for other fasteners are necessary. With regard to the filling and the further operation of the individual elements is on the execution of the 5 and 6 directed.

17 and 18 show further embodiments of the gas bag arrangement according to the invention. In the present case, the material storage is in the form of a rolling device 9 within the extended area 51 a backrest cheek of a vehicle seat 5 (here a bucket seat) arranged. The gas bag 1 extends flat between the seat cover 3 and the seat cushion 4 on the outside of the back cheeks (the side facing away from a vehicle occupant) to a gas generator 2 in a space 7 is arranged in the lower region of the backrest cheek ( 17 ). Alternatively, the gas bag extends 1 flat between the seat cover 3 and the seat cushion 4 on the inside of the backrest cheek (the side facing a vehicle occupant) to a gas generator 2 which is arranged in the back space of the vehicle seat ( 18 ). A filling thus takes place via the outside or the inside of the backrest cheek. With regard to the filling process and the further operation of the individual elements is on the embodiments of the preceding embodiments, in particular the 5 and 6 directed.

By the arrangement of the rolling device 9 in the upper part of the extended area 51 the backrest cheek is the distance between the first mounting area 501 that is at the unwinding device 9 is arranged, and the second attachment area 502 that is connected to the gas generator 2 is arranged, formed less than in the preceding embodiments. Consequently, the kink or the fold of the inflated airbag is 1 less formed, so the first section 10 of the gas bag 1 in the inflated state only partially the inner or outer side of the extended area 51 includes. By the distance of the first and second attachment area 501 . 502 - Measured in the direction of the vehicle transverse axis - is due to connection of the first and second sections 10 . 11 by means of the first and second fixing areas 201 . 202 with the first and second attachment area 501 . 502 the propagation direction and spread shape of the gas bag influenced and can be adapted to individual seat structures as needed.

The 19 shows a further embodiment of the gas bag arrangement according to the invention. There is a gas generator 2 below the apex of the extended area 51 a backrest cheek of a vehicle seat 5 (Here, for example, a bucket seat or a lightweight seat) within the backrest cheek in the upper part of the extended area 51 arranged. The gas bag 1 extends over the outside of the extended area 51 flat up to a unwinding device 9 that are inside the vehicle seat 5 is arranged in the backrest cheek. Furthermore, the gas bag extends over the inside of the extended area 51 through the seat cushion 4 through to another unwinding device 9 , which is arranged in the back space of the vehicle seat. The fixation areas 201 . 202 and the attachment areas 501 . 502 are not shown for reasons of clarity.

Here is the gas generator 2 over a channel at the apex of the extended area 51 wherein the vertex of the extended region is the region of greatest distance from the plane passing through the body 50 of the vehicle seat 5 (here the backrest) is formed. A filling of the gas bag 1 over the gas generator 2 occurs simultaneously over the outer and inner sides of the extended area 51 wherein during the expansion process airbag material from the respective unwinding devices 9 is retraced.

The 20 shows a comparable embodiment to the previous embodiment. However, the 20 only a material storage in the form of a rolling device 9 , which is designed such that it retracts the airbag material in the case of filling the airbag 1 over both the outer and inner sides of the extended area 51 allows. The unwinding device 9 is formed such that unrolling of the airbag material both in the direction of the outside and the inside of the extended area 51 is possible.

Furthermore, a deflection device 90 provided, which is mounted in a comparable position of the further rolling device of the preceding figure. By a force acting on the deflection device in the inflated state, this results in a comparable tightening of the gas bag as in the preceding embodiments. Alternatively, such a tightening even without deflection by a direct force on the first attachment area 502 that is at the unwinding device 9 is arranged take place. Alternatively it can also be provided a material supply device, which is formed for example as a housing in which additional airbag material is housed by means of folding or stuffing. The fixation areas 201 . 202 and the attachment areas 501 . 502 are not shown for reasons of clarity.

In particular, multiple channels for filling the gas bags of the two preceding embodiments of 19 and 20 be provided. Also, the gas bags may be formed with only one chamber or more chambers.

The 21 and 22 show schematically a gas bag in an inflated state comparable to the embodiment of the 19 , In this case, at the first and second fixation area 201 . 202 credits tapes 13 . 14 provided over which the sections 10 . 11 of the gas bag 1 with the in the unwinding devices 9 provided first and second attachment areas 501 . 502 are connected. In this case, the propagation form and propagation direction of the inflated airbag 1 by the length of the respective guy bands 13 . 14 certainly. The shorter the guy straps 13 . 14 are trained (see 22 ) the clearer are the kinks or wrinkles in the inflated gas bag 1 trained and the more becomes the extended area 51 includes the inflated gas bag.

A use of two guy straps 13 . 14 which have substantially the same length is not necessary. The guy bands 13 . 14 can also have different lengths, so that the propagation direction and propagation form of the inflated airbag 1 can be adjusted as needed. With regard to the operation of the other elements, in particular the operation of the guy straps 13 . 14 is based on the statements made in respect of the preceding embodiments, in particular the 9 and 10 , referenced.

The 23 shows a nineteenth embodiment of the gas bag arrangement according to the invention, which is comparable to the embodiment of the 5 is. It differs essentially in that the gas bag 1 in the uninflated state between the extended area 51 (here the back frame of a vehicle seat 5 ) and the seat foam 4 extends. Here is the seat foam 4 such that it forms at least during the expansion of the gas bag 1 in sections from the main body 50 the vehicle structure and the extended area 51 solves and provides an opening through which the gas bag 1 can extend into the vehicle interior. During expansion, the seat foam 4 moved in the direction of a vehicle occupant. In this case, the gas bag 1 be formed such that a vehicle occupant - in the case of a collision - essentially with the seat cover to be moved to him 4 comes into contact and over the seat cover 4 an interaction with the gas bag 1 provided. Alternatively, the gas bag 1 be formed such that in the event of a collision, the vehicle occupant both with a portion of the seat cover 4 as well as with the first section 10 of the gas bag 1 comes into contact. A filling of the gas bag in the event of a collision takes place from the outside of the side cheek, comparable to 5 ,

With regard to the operation of the comparable elements and a filling of the gas bag is on the embodiments of 5 referenced (where the second fixation area 202 and the second attachment area 502 have not been shown for reasons of clarity).

The 24 shows a twentieth embodiment of the gas bag arrangement according to the invention, which is comparable to the embodiment of the 23 is. The main difference to the arrangement of 23 is that the positions of the material store 6 and the gas generator 2 opposite to the arrangement of 23 are reversed. A filling of the gas bag in the event of a collision thus takes place from the inside of the side cheek, comparable to 6 , First, the gas bag blows 1 thus on the inside of the side wall directly in the vicinity of a vehicle occupant to be protected as intended, so that the seat cover 4 is moved early on a vehicle occupant. With regard to the further explanations, the comments of the 6 and 23 directed.

LIST OF REFERENCE NUMBERS

1

airbag

2

inflator

3

seat cover

3 '

free area

4

seat foam

5

vehicle seat

6

material storage

7

space

8th

Material supply device

9

unrolling

10

first section of the gas bag

11

second section of the gas bag

12

fastener

13

First guy strap

14

Second guy strap

15

fold location

16

load balancer

30

free section

50

body

51

extended area

100

another section

101

first page of the first section

102

second page of the first section

111

first page of the second section

112

second side of the second section

201

first fixation area

202

second fixation area

501

first attachment area

502

second attachment area

Z

Vertical vehicle axle

Claims (14)

Airbag arrangement for a motor vehicle, with - an airbag ( 1 ) for protecting a vehicle occupant of the motor vehicle by means of a gas generator ( 2 ) is inflatable, wherein - the gas bag ( 1 ) at least a first fixation area ( 201 ) and at least one second fixation area ( 202 ), by means of which the gas bag ( 1 ) with at least one first attachment area ( 501 ) and at least one second attachment area ( 502 ) of the vehicle seat ( 5 ), and wherein - the gas bag ( 1 ) in such a way over the first fixation area ( 201 ) with the first attachment area ( 501 ) and over the second fixation area ( 202 ) with the second attachment area ( 502 ), that the gas bag ( 1 ) at least partially around at least a portion of a region along the vertical axis of the vehicle (Z) ( 51 ) of a basic body ( 50 ) of the vehicle seat ( 5 ), characterized in that the first and / or the second fixing region ( 201 . 202 ) via at least one material store ( 6 ) for airbag material with the first or second attachment area ( 501 . 502 ), the material storage ( 6 ) is adapted during the expansion of the gas bag ( 1 ) when inflating the gas bag ( 1 ) Gas bag material until reaching a planned expansion end state to provide, and that the gas bag ( 1 ) in an inflated state at least one kink or crease between a first section ( 10 ) and a second section ( 11 ) of the gas bag ( 1 ), which is designed such that the gas bag ( 1 ) the extended area ( 51 ) of the basic body ( 50 ) of the vehicle seat ( 5 ) at least partially. Airbag arrangement according to claim 1, characterized in that the at least one material storage ( 6 ) is designed such that the material to be provided by folding or stuffing in a suitable space ( 7 ) or under the seat cover ( 3 ) of the vehicle seat ( 5 ) is arranged. Airbag arrangement according to claim 2, characterized in that the at least one material storage ( 6 ) in the form of a material supply device ( 8th ), in particular a roll-off device ( 9 ), is trained. Airbag arrangement according to one of the preceding claims, characterized in that the first fastening area ( 501 ) in the direction of the vehicle transverse axis to the second fastening region ( 502 ) is spaced. Airbag arrangement according to claim 4, characterized in that the distance between the first attachment region ( 501 ) and the second attachment area ( 502 ) in the direction of the vehicle transverse axis is greater than the minimum width, in particular greater than the maximum width, of the extended region ( 51 ), measured in the direction of the vehicle transverse axis. Airbag arrangement according to one of the preceding claims, characterized in that the gas bag ( 1 ) at least partially flat around the extended area before inflation ( 51 ). Airbag arrangement according to claim 1, characterized in that the at least one first attachment area ( 501 ) on a partial element of the vehicle seat ( 5 ), on the material storage ( 6 ) or the gas generator ( 2 ) and the at least one second attachment area ( 502 ) on a partial element of the vehicle seat ( 5 ), on the material storage ( 6 ) or the gas generator ( 2 ) is arranged. Airbag arrangement according to one of the preceding claims, characterized in that the fastening areas ( 501 . 502 ) of the vehicle seat ( 5 ) each have a fastener ( 12 ) for connecting the attachment areas ( 501 . 502 ) with the fixing areas ( 201 . 202 ) exhibit. Airbag arrangement according to one of the preceding claims, characterized in that the gas generator ( 2 ) is arranged such that when filling of the gas bag ( 1 ) by means of the gas generator ( 2 ) the first paragraph ( 10 ) or the second section ( 11 ) is first filled with gas. Airbag arrangement according to one of claims 1 to 9, characterized in that the gas generator ( 2 ) is arranged such that when filling the gas bag ( 1 ) by means of the gas generator ( 2 ) the first paragraph ( 10 ) and the second section ( 11 ) are filled with gas substantially simultaneously. The gas bag arrangement according to one of the preceding claims, characterized in that the gas bag arrangement has at least one tensioning strap ( 13 ), which with a first end over the first fixation area ( 201 ) with the first section ( 10 ) and a second end with the first attachment area ( 501 ), so that the at least one guy strap ( 13 ) a connection of the first section ( 10 ) with the first attachment area ( 501 ). The gas bag arrangement according to claim 11, characterized in that the gas bag arrangement has a second guy strap ( 14 ) having a first end over the second fixation area (FIG. 202 ) with the second section ( 11 ) and a second end with the second attachment area ( 502 ), so that the second guy strap ( 14 ) a connection of the second section ( 11 ) with the second attachment area ( 502 ). Airbag arrangement according to one of the preceding claims, characterized in that the gas bag ( 1 ) at least one further section ( 100 ) between the first section ( 10 ) and the second section ( 11 ), wherein the gas bag ( 1 ) in the inflated state at least one kink or a fold between the first section ( 10 ) and the further section ( 100 ) and at least one kink or fold between the further section ( 100 ) and the second section ( 11 ), which are formed such that the gas bag ( 1 ) at least partially around an area along the vertical axis of the vehicle (z) ( 51 ) of a basic body ( 50 ) of the vehicle seat ( 5 ). Airbag arrangement according to one of the preceding claims, characterized in that the gas bag ( 1 ) at least one defined fold ( 15 ), which is formed such that a kink or a fold of the gas bag ( 1 ) preferably takes place at this point.

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