WO2025238193A1 - Hinge textile and airbag hinge - Google Patents

Abstract

The invention relates to a hinge textile (10, 10a, 10b) for forming an airbag hinge (100a, 100b) between an airbag flap (208a, 208b, 208c) and a fastening section (196, 204), wherein a first portion (12a) of the hinge textile (10, 10a, 10b) is designed to be embedded into a first plastic material region (102a) of a fastening section (196, 204) and/or a second portion (12b) of the hinge textile (10, 10a, 10b) is designed to be embedded into a second plastic material region (102b) of the airbag flap (208a, 208b, 208c), and the hinge textile (10, 10a, 10b) has textile threads (14). According to the invention, groups (40) of two or more textile threads (14) are formed, in which the textile threads (14) are positioned adjacent to one another so as to reduce or prevent penetration by the respective plastic, wherein lanes (50) are formed between the groups (40), said lanes being open to be penetrated by the plastic.

Description

Hinge textile and airbag hinge

The invention relates to a hinge textile for forming an airbag hinge between an airbag flap and a mounting section, wherein the hinge textile is designed to be embedded with a first section in a first plastic material region of a mounting section, and/or with a second section in a second plastic material region of the airbag flap, and comprises textile threads. The invention further relates to an airbag hinge for connecting an airbag flap to a mounting section, comprising a hinge textile extending within a textile plane, a first plastic material region associated with the mounting section and connected to a first section of the hinge textile, and a second plastic material region associated with the airbag flap and connected to a second section of the hinge textile, wherein the second material region is pivotable relative to the first material region for opening the airbag flap.

Airbag hinges comprising hinge textiles are known in the prior art and are used in the instrument panel of motor vehicles for the passenger airbag. To connect the hinge textiles to the airbag housing, the hinge textile is preferably overmolded with injection-molded plastic in the material area of the airbag housing.

From publication EP 4 151 473 A1, a textile surface element of an airbag is known, which is attached with a first area to the inside of an airbag deployment channel and with a second area to the underside of an airbag flap. The connection between the first and second areas forms a joint, the joint being made of threads of the basic structure of the The textile surface element consists of a surface element and additional stop threads. The stop threads exhibit a different, and in particular greater, tensile strength compared to the sacrificial threads of the basic structure of the textile surface element. The stop threads and the sacrificial threads are distributed not only in the area of the joint, but throughout the entire surface of the textile surface element.

Furthermore, EP 2 727 775 A1 discloses an airbag cover with at least one flap, which is bounded in the cover material and/or at the edge of the material by predetermined breaking lines forming the flap edges and a hinge edge. After the airbag is deployed, the airbag flap tears at the predetermined breaking lines and pivots around the hinge without tearing off at the hinge. The cover material, in particular the lid in the area of the hinge, forms at least one fold or crease extending along the hinge.

Furthermore, German patent application DE 10 2008 042 657 A1 discloses an airbag cover comprising a first connecting section connectable to the airbag cover, a second connecting section connectable to a support part surrounding the airbag cover, and a hinge section arranged between the first and second connecting sections. The hinge section has a first thread system and a second thread system, wherein the threads of the first thread system reach their elongation at break with less elongation of the hinge section than the threads of the second thread system. At least in the hinge area, the threads of the first thread system are attached to the threads of the second thread system multiple times.

When the airbag is triggered, the forces acting in the direction of pull are gradually reduced until the threads of the thread system, which would tear if the textile hinge were stretched too far, are fully extended.

A common problem in the airbag application described above is the connection or embedding of the hinge textile in the material of the mounting section, in particular the airbag housing or a support structure surrounding the airbag flap, which forms the instrument panel. The support structure forms and/or supports the airbag. One section of the support structure can itself form the airbag flap, while another section forms the mounting bracket. Under the enormous forces generated during airbag deployment, the hinge fabric can detach from the airbag housing or support structure, particularly at low and/or high temperatures. This detachment can impair the function of the airbag hinge, especially its safety-critical function of retaining the airbag cover or flap, and can cause fragments or pieces to fly into the vehicle's interior, potentially injuring the driver or passenger.

The object underlying the invention is to at least partially overcome the problems known in the prior art in this context and to provide a hinge textile and an airbag hinge that reduces, in particular minimizes, the risk of detachment from the fastening section.

This problem is solved by a hinge textile according to claim 1 and an airbag hinge according to claim 24. Advantageous further developments are specified in the dependent claims and are explained below.

According to the invention, a hinge textile of the type mentioned at the outset is further developed in such a way that groups of two or more textile threads are formed in it, in which the textile threads (14) lie next to each other in a way that reduces or densifies penetration for the respective plastic, and channels are formed between the groups which are open to penetration for the plastic.

The core of the invention thus consists in providing a section-by-section densification of the functional textile threads, in a direction transverse to the direction of extension of the textile threads and to the benefit of a section-by-section opening of the hinge textile, by creating section-by-section, in particular strip-shaped, free areas in the hinge textile which can be penetrated, i.e., permeated or flowed through, by the plastic of the fastening section. These free areas are formed by the channels. While the textile threads of a group lie so close together that the plastic does not Whether the material can penetrate the plastic (penetration-tight) or only minimally (penetration-reduced), the channels do not pose an obstacle for the plastic (penetration-open). The hinge textile can therefore be at least partially enclosed by the plastic, and thus embedded within it. This creates a secure, or at least improved, connection between the hinge textile and the fastening section.

The textile threads are preferably functional threads that fulfill a special function in the hinge textile. As will be explained below, such a special function can consist of...

- To provide fixing sections that protrude from the textile plane of the hinge textile in order to be surrounded by the plastic, and/or

- To provide hinge sections that form a material reservoir in order to allow a controlled extension of the airbag flap's travel, and/or

- To form stop threads that do not tear when the airbag flap is opened and hold the flap securely to the mounting section.

The groups can additionally each comprise one or more base threads of a basic structure of the hinge textile, wherein the base thread(s) for the respective plastic lie adjacent to the textile threads of the respective group in a penetration-tight manner. In other configurations, the base threads and textile threads run side by side, particularly parallel. Preferably, all base threads of the basic structure are part of a group, so that no base threads of the basic structure extend in the same direction as the textile threads within the channels.

In one embodiment, one or preferably two of the basic threads can flank the textile threads on the right and left sides within the group. Thus, each group comprises at least four or six threads: one or two basic threads on the outside and two or more textile threads within the group. Additionally, it is possible that at least one of the basic threads lies between two textile threads within the group. In a preferred embodiment, the channels have a width between 1 mm and 3 mm, preferably approximately 2 mm. However, it is also possible for the channel width to be variable across the entire hinge textile. For example, in one embodiment, the channels may have a first width in a first region of the hinge textile and a second width in a second region. This allows for different penetration zones within the hinge textile, varying in how well the plastic penetrates the textile. The channels may, for example, have a width of 2 mm to 4 mm, preferably approximately 3 mm. Furthermore, one of the channels may be positioned every 3 mm to 7 mm, preferably every 5 mm, along a direction transverse to the textile threads. However, the ratio of the group width to the lane width is such that the hinge textile has a penetration openness for the respective plastic created by the lanes of between 30% and 50%, preferably of about 40%.

In one embodiment, the textile threads can have a greater width than thickness and be arranged so flat in the hinge textile that they extend parallel to the textile plane of the hinge textile in the direction of their length and width. The textile threads have, in particular, a greater width than the base threads, preferably 5 to 15 times the width of the base threads, and thus occupy the majority of the width of a group.

According to the invention, the airbag hinge for connecting the airbag flap to a fastening section comprises

- a hinge textile extending within a textile plane,

- a first material area made of plastic, which is assigned to the fastening section and which is connected to a first section of the hinge textile, and

- a second plastic material area associated with the airbag flap and connected to a second section of the hinge textile, wherein the second material area is pivotable relative to the first material area to open the airbag flap, and the hinge textile is constituted as described above. The plastic of the first material area and/or the plastic The second material area penetrates the channels, so that the first and/or second section of the hinge textile is embedded at least partially in the corresponding plastic, resulting in a positive fit between the plastic and the hinge textile.

The airbag flap is structurally or at least functionally part of an airbag unit, which can be installed in a vehicle, particularly behind the instrument panel or dashboard on the passenger side. In one design variant, the mounting section can be the airbag deployment channel of an airbag housing, which structurally also includes the airbag flap. In other words, the airbag hinge, more precisely its first section, is connected to the airbag deployment channel in this variant, such that the securing thread sections are embedded within it, i.e., surrounded by the plastic that forms the airbag deployment channel. The first section of material is therefore part of the airbag deployment channel.

In one embodiment, the airbag flap is not a structural part of the airbag housing, but rather of the instrument panel (dashboard) of the vehicle, with a section of the instrument panel forming the airbag flap. In this embodiment, the airbag deployment channel is mounted behind the instrument panel, so that the section of the instrument panel forming the airbag flap covers the airbag deployment channel, and thus the airbag itself, when the airbag deployment channel is installed, and can therefore be considered functionally part of the airbag housing. However, due to the detachability of the airbag deployment channel from the airbag flap, the hinge fabric is not attached to the airbag deployment channel itself, but rather to the supporting structure that forms, or at least partially forms, and/or supports the instrument panel. Thus, in one embodiment, the mounting section can be part of the supporting structure that forms, at least partially forms, and/or supports the instrument panel. In other words, in this variant, the airbag hinge, or more precisely its first section, is connected to the support structure in such a way that the fixing thread sections are embedded within it, i.e., surrounded by the plastic that forms the support structure. The first material section is therefore part of the support structure, specifically part of the instrument panel or dashboard. With regard to the aforementioned special function of the textile threads (functional threads), one design variant allows for the inclusion of fixing thread sections protruding from a textile plane of the hinge textile for embedding in the airbag flap and/or the mounting section. These fixing thread sections, through a positive fit between the hinge textile and the respective plastic, further improve the anchoring of the hinge textile in the mounting section and/or the airbag flap. Because the hinge textile features textile threads that protrude from the textile plane along one or more fixing thread sections, and in particular because these protruding fixing thread sections are embedded in the first and/or second material layer, a secure connection between the hinge textile and the mounting section material is ensured. This reduces, and in particular minimizes, the risk of the hinge textile detaching from the mounting section material when the airbag is deployed.

In another embodiment, the textile threads (functional threads) can have hinge thread sections protruding from the textile plane of the hinge textile to form a path-extending material reservoir between the airbag flap and the mounting section, in order to allow the airbag flap to pivot relative to the mounting section.

In another embodiment, the textile threads (functional threads) can have both the aforementioned fixing thread sections and the aforementioned hinge thread sections. Each textile thread can have at least one of the aforementioned fixing thread sections as well as at least one of the aforementioned hinge thread sections. Alternatively, a first part of the textile threads can have only at least one of the aforementioned fixing thread sections, i.e., no hinge thread section, while another part of the textile threads can have only at least one of the aforementioned hinge thread sections, i.e., no fixing thread section.

The connection between the fixing thread sections protruding from the textile plane and the first and/or second material area is Resistant to the tensile forces generated, particularly when the airbag deploys and the airbag flap opens. A predetermined breaking line may be located on the side of the airbag housing facing the vehicle's interior, especially on or within the airbag cover. When the airbag deploys, the airbag housing, particularly the airbag cover, opens along this predetermined breaking line, allowing the airbag to at least partially exit the housing. Similarly, a trim panel covering the airbag flap, which is part of the instrument panel or dashboard, may have a corresponding predetermined breaking line along which the panel tears open upon deployment, releasing the airbag. In an alternative design, the airbag flap may be materially independent of the airbag housing and its supporting structure, so that only a predetermined breaking line is present along the trim panel covering the airbag flap.

The airbag flap can be designed as an H-shaped or a U-shaped airbag flap. An H-shaped airbag flap is a double flap, consisting of two individual flaps, each with an airbag hinge or hinge fabric, while a U-shaped airbag flap is a simple flap with only one airbag hinge or hinge fabric.

Textile threads can comprise textile fibers. The combination of several textile fibers can form one textile thread or several textile threads.

Suitablely, the textile threads can be bundles of fibers made up of a variety of fibers, so-called multifilaments.

The inner wall of the airbag deployment channel can be arranged, at least partially, parallel to the airbag flap. The inner wall of the airbag deployment channel can be angled relative to the airbag flap, in particular perpendicular. The textile plane can have a first and a second textile plane region. The first and second textile plane regions can be oriented parallel or obliquely to each other. The airbag hinge has a hinge function. The fixing thread sections protruding from the textile plane can be overmolded using an injection molding process. The first textile plane region can run parallel to the inner wall of the airbag deployment channel, and the second The textile layer can run parallel to the airbag flap. In this arrangement, the first and second textile layer areas are therefore at an angle to each other.

If the fastening section is part of the support structure, the first textile layer can run parallel to an outer surface of the support structure, and the second textile layer can run parallel to the airbag flap. In this arrangement, the first and second textile layers lie essentially in the same plane, so that the hinge textile extends flat into the support structure.

The airbag flap can be made of injection-molded material, particularly plastic injection molding. The airbag deployment channel can also be made of injection-molded material, particularly plastic injection molding. The airbag housing can be made of injection-molded material, particularly plastic injection molding. Likewise, the support structure can be made of injection-molded material, particularly plastic injection molding. In the injection molding process, the injection molding material is injected under pressure using an injection mold. During the injection molding process, the injection molding material hardens through cooling or a cross-linking reaction, transitioning from a liquid to a solid state.

The fastening thread sections protruding from the plane of the textile are located, at least partially, outside the plane of the textile. There may be one or more additional first material sections associated with the fastening section, in particular the airbag deployment channel or the support structure, and connected to one or more further fastening thread sections of the hinge textile. Likewise, there may be one or more additional second material sections associated with the airbag flap and connected to one or more further fastening thread sections of the hinge textile.

The hinge textile can comprise a woven fabric and/or non-woven fabric and/or knitted fabric, in particular a woven fabric. The hinge textile can comprise natural fibers and/or synthetic fibers. The hinge textile can comprise nonwoven fabric and/or nonwoven material and/or felt and/or sewn knit fabric and/or braid and/or knitted fabric. All or only a proportion of the fixing thread sections can be embedded. Preferably, the Hinge textile, however, is a fabric in which the textile threads, and especially preferably the base threads, are warp threads.

The hinge textile can be welded onto the airbag flap and/or onto the mounting section, in particular the airbag deployment channel or the support structure.

In an advantageous embodiment of the airbag hinge according to the invention, the fixing thread sections projecting from the plane of the textile comprise first fixing thread sections embedded in the first material region. The first fixing thread sections project from the plane of the textile. All or only a portion of the first fixing thread sections can be embedded. The first section of the hinge textile can comprise the first fixing thread sections. The first fixing thread sections can be overmolded, at least partially, within the first material region. There can be first fixing thread sections of a first and second length. The first fixing thread sections of a first and second length have a mixture ratio. The first fixing thread sections can be embedded in several material regions. If the fastening section is the airbag deployment channel, the first fixing thread sections can be referred to as channel fixing thread sections.

In a further advantageous embodiment of the airbag hinge according to the invention, the fixing thread sections projecting from the plane of the textile comprise second fixing thread sections embedded in the second material region. The second fixing thread sections can be referred to as flap fixing thread sections. The second fixing thread sections project from the plane of the textile. Fixing thread sections can comprise both first fixing thread sections and second fixing thread sections. The fixing thread sections projecting from the plane of the textile in a section of the hinge textile that is connected to a material region associated with the airbag flap comprise second fixing thread sections. The second section of the hinge textile can comprise the second fixing thread sections. The second fixing thread sections can be overmolded, at least partially, in the second material region by injection molding. The first and second lengths of the fixing thread are given. The second fixing thread sections of the first and second lengths have a mixing ratio. The second fixing thread sections can be embedded in several material areas.

The hinge textile according to the invention is further advantageously developed in that the fixing thread segments projecting from the plane of the textile form at least one row of fixing thread segments. In the area where the fixing thread segments projecting from the plane of the textile are embedded in the first or second material region, the fixing thread segments projecting from the plane of the textile form a row of fixing thread segments. The row of fixing thread segments is embedded in the first material region and/or the second material region. The fixing thread segments projecting from the plane of the textile can form a first row of fixing thread segments and a second row of fixing thread segments. The first row of fixing thread segments can be embedded in the first material region. The second row of fixing thread segments can be embedded in the second material region.

Furthermore, the airbag hinge according to the invention is advantageously further developed by the fact that a pivot axis is located between the first material area and the second material area, and the at least one row of fixing thread sections preferably extends parallel to the pivot axis. The pivot axis relates to the pivoting movement of the airbag flap relative to the mounting section, in particular the airbag deployment channel. When the airbag flap opens, the second material area pivots relative to the first material area along the pivot axis. When the airbag flap opens, the airbag flap pivots relative to the mounting section, in particular to the airbag deployment channel, about the pivot axis. When the airbag flap opens, the position of the pivot axis relative to the airbag flap and/or the mounting section, in particular the airbag deployment channel, is changed. The row of fixing thread sections can extend obliquely to the pivot axis.

The hinge textile according to the invention is further advantageously developed in that the fixing thread sections projecting from the plane of the textile are located beyond the pivot axis. The sections projecting from the plane of the textile Fixing thread sections are arranged at least 4 mm, preferably at least 8 mm, and particularly preferably at least 12 mm apart from the pivot axis.

In an advantageous embodiment of the hinge textile according to the invention, the fixing thread sections projecting from the plane of the textile form one or more fixing loops. The fixing loops have a three-dimensional structure. Because the fixing thread sections projecting from the plane of the textile form one or more fixing loops, a firm, and in particular resistant, connection is created between the hinge textile and the first and/or second material area. The connection between the fixing loops and the first and/or second material area is resistant to tensile forces, which occur particularly when the airbag is deployed and the airbag flap opens. The fixing loop can be designed as an anchor loop and/or knot and/or loop and/or an open thread end. The open thread end can be formed by tufting. Tufting comprises the production of textile surfaces with at least one pile layer. Tufting can include sewing and knitting. The knot can be located at one end of one or more fixing thread sections projecting from the plane of the textile. The knot can be designed as a connecting knot. A sling can, in particular, comprise ring-shaped, connected fixing loops.

As already mentioned with regard to the special function of the textile threads, the hinge textile can have hinge thread sections protruding from the plane of the textile. These extend along a hinge section and allow the second material area to pivot relative to the first material area to open the airbag flap. Textile threads can include both hinge thread sections protruding from the plane of the textile and first fixing thread sections. The hinge thread sections protruding from the plane of the textile extend at least 1 mm, preferably at least 2 mm. Preferably, the hinge thread sections protrude at least 3 mm from the plane of the textile. These sections protrude from the plane of the textile, forming a thread reserve or material reservoir.

When the airbag flap opens, the distance between the airbag flap and the mounting section increases. Because the hinge fabric has hinge thread sections protruding from the plane of the fabric, tearing of these thread sections is prevented when the airbag is deployed. Furthermore, these protruding hinge thread sections ensure that the airbag flap pivots securely relative to the mounting section.

In a further preferred embodiment of the airbag hinge according to the invention, the hinge thread sections projecting from the plane of the textile are not embedded in the first material region and/or not embedded in the second material region in the region of the pivot axis. In the region of one or more rows of fixing thread sections, fixing thread sections projecting from the plane of the textile may be embedded in the first material region and/or embedded in the second material region. The hinge thread sections projecting from the plane of the textile are not embedded in the first material region. The hinge thread sections projecting from the plane of the textile are not embedded in the second material region. The hinge thread sections projecting from the plane of the textile are not embedded in the fastening section. The hinge thread sections projecting from the plane of the textile are not embedded in the airbag flap.

The hinge textile according to the invention is further advantageously developed in that the hinge thread sections projecting from the plane of the textile form at least one row of hinge thread sections. The hinge thread sections projecting from the plane of the textile are not embedded in the first material region and/or not in the second material region in the area of the hinge thread section row. Along the at least one row of hinge thread sections, the second material region can be pivoted relative to the first material region to open the airbag flap. In an advantageous embodiment of the hinge textile according to the invention, the row of hinge thread sections extends parallel to the pivot axis. Alternatively, the row of hinge thread sections can also run inclined or obliquely relative to the pivot axis. The row of hinge thread sections can extend along the pivot axis. In a further preferred embodiment of the hinge textile according to the invention, the hinge thread sections projecting from the plane of the textile extend along the pivot axis. The hinge thread sections project out of the plane of the textile along the pivot axis. Because the hinge thread sections projecting from the plane of the textile extend along the pivot axis, a secure pivoting of the airbag flap relative to the mounting section is enabled.

In a preferred embodiment of the hinge textile according to the invention, the hinge thread sections projecting from the plane of the textile form one or more hinge loops projecting from the plane of the textile. The one or more hinge loops can be designed as anchor loops and/or knots and/or loops. The knots can be located at one or more ends of one or more hinge thread sections projecting from the plane of the textile. The knots can be designed as connecting knots. The loops can, in particular, comprise ring-shaped connected loops. The hinge loops are not embedded in the first material region. The hinge loops are not embedded in the second material region. The hinge loops are not embedded in the fastening section. The hinge loops are not embedded in the airbag flap.

In an advantageous embodiment of the hinge textile according to the invention, the one or more fixing loops and the one or more hinge loops have different or identical loop lengths. The loop length of the fixing loops can be at least 1.2 times, preferably at least 1.5 times, and particularly preferably at least 2.0 times the loop length of the hinge loops. The loop length of the hinge loops can be at least 1.2 times, preferably at least 1.5 times, and particularly preferably at least 2.0 times the loop length of the hinge loops. The loop length of the fixing loops must be at least 1 mm, preferably at least 2 mm, and particularly preferably at least 3 mm. The loop length of the hinge loops must be at least 1 mm, preferably at least 2 mm, and particularly preferably at least 3 mm.

In an advantageous embodiment of the hinge textile according to the invention, the one or more fixing loops and the one or more hinge loops have a different number of loops or a matching number of loops.

In a preferred embodiment of the hinge textile according to the invention, the fixing thread sections and the hinge thread sections projecting from the textile plane protrude from the textile plane on different sides of the hinge textile. The fixing thread sections projecting from the textile plane are located, at least partially, outside the textile plane. The hinge thread sections projecting from the textile plane are located, at least partially, outside the textile plane.

As already mentioned, the first section of the hinge textile can comprise first fixing thread sections projecting from the plane of the textile, and the second section of the hinge textile can comprise second fixing thread sections projecting from the plane of the textile. Preferably, the first fixing thread sections and the second fixing thread sections project from the plane of the textile on the same side of the hinge textile.

In a particularly preferred embodiment of the hinge textile according to the invention, the at least one row of fixing thread sections and the at least one row of hinge thread sections run parallel to each other. The at least one row of fixing thread sections and the at least one row of hinge thread sections can be spaced apart from each other. The at least one row of fixing thread sections can have a distance of at least 4 mm, preferably at least 8 mm, and particularly preferably at least 12 mm from the row of hinge thread sections. The hinge textile can be further advantageously designed by incorporating sacrificial threads that are configured to break upon airbag deployment. Preferably, the base threads, or at least a portion thereof, form these sacrificial threads. All sacrificial threads lie within the plane of the textile. Upon airbag deployment, the tensile force on the sacrificial threads increases, and the distance between the airbag flap and the airbag deployment channel is enlarged. The tensile strength of the sacrificial threads may be reduced compared to the tensile strength of the fixing thread sections that protrude from the plane of the textile. The tensile strength of the sacrificial threads may also be reduced compared to the tensile strength of the textile threads.

The hinge fabric may include weft threads, which are a component of the basic structure. The tensile strength of the sacrificial threads may be reduced compared to the tensile strength of the weft threads. The tensile strength of the sacrificial threads may be increased compared to the tensile strength of the weft threads. Due to the reduced tensile strength of the sacrificial threads, they may break when the airbag is deployed. The tensile strength may be, in particular, a tensile strength. The tensile strength of a single sacrificial thread may be a maximum of 30 cN/tex, particularly preferably a maximum of 25 cN/tex. The total tensile strength of all sacrificial threads in the hinge fabric may be between 50 N/5cm and 2,000 N/5cm, particularly preferably between 100 N/5cm and 1,000 N/5cm. The sacrificial threads do not include any fixing loops and/or hinge loops. The sacrificial threads may consist of natural fibers and/or synthetic threads, or may comprise both natural fibers and/or synthetic threads. The sacrificial threads can be made from a mixture of natural and synthetic fibers. Preferably, the sacrificial threads consist of or include cotton. These material specifications also apply to the base threads.

With regard to the aforementioned special function of the textile threads (functional threads), at least some, preferably all, of the textile threads can form stop threads designed to hold the airbag flap against the mounting section, particularly the airbag deployment channel, when the airbag is deployed. Upon deployment of the airbag, the tensile force on the stop threads increases, and the distance between the airbag flap and the airbag deployment channel is enlarged. The tensile strength of the stop threads can correspond to the tensile strength of the fixing thread sections protruding from the plane of the textile. The total tensile strength of all stop threads in the hinge textile can range from 1,000 N/5 cm to 8,000 N/5 cm, and is particularly preferably between 2,000 N/5 cm and 6,000 N/5 cm. Due to the increased tensile strength of the stop threads, safe pivoting of the airbag flap relative to the mounting section is ensured when the airbag is deployed. The stop threads can include fixing loops and/or hinge loops. The stop threads can be or include synthetic fibers and/or natural fibers. Natural fibers can be or include cotton. Preferably, the textile fibers are made of polyester.

In an advantageous embodiment of the hinge textile according to the invention, the sacrificial threads have a lower tensile strength than the stop threads. The tensile strength of the stop threads is increased compared to the tensile strength of the sacrificial threads. The airbag hinge may include weft threads. The tensile strength of the stop threads may be increased compared to the tensile strength of the weft threads. Because the sacrificial threads have a lower tensile strength than the stop threads, they break when the airbag is deployed. The sacrificial threads are shorter than the stop threads. If the stop threads include fixing loops and/or hinge loops, they are longer than the sacrificial threads, since the sacrificial threads do not include fixing loops and/or hinge loops. Because the sacrificial threads break when the airbag is deployed, the airbag flap can pivot safely relative to the mounting section. Because the sacrificial threads tear when the airbag is triggered, the distance between the airbag flap and the mounting section increases when the airbag flap pivots relative to the mounting section.

Further features, advantages, properties, and effects of the invention are explained below with reference to an exemplary embodiment and the accompanying figures. Reference numerals in the various figures denote identical or at least functionally equivalent components, parts of components, spatial regions, sections, surfaces, directions, and the like. Where a specific feature is described above and below in connection with a particular embodiment, it is hereby clarified that this feature is also part of another embodiment. The described design variant may be used, at least unless expressly stated otherwise or technically excluded.

It should be noted that, within the context of this description, the terms "exhibit," "comprise," or "include" in no way exclude the presence of other characteristics. Furthermore, the use of the indefinite article for an object does not preclude its plural form.

This shows:

Fig. 1 shows an embodiment of an airbag unit according to the invention in a schematic and perspective sectional view;

Fig. 2 shows a further embodiment of an airbag unit according to the invention in a schematic and perspective sectional view;

Fig. 2a shows a further embodiment of an airbag unit according to the invention in a schematic sectional view;

Fig. 3 shows a top view of an airbag housing of an airbag unit according to the invention with an H-flap in a perspective view;

Fig. 3a shows a top view of an airbag housing of an airbag unit according to the invention with a U-shaped flap in a perspective view;

Fig. 4 shows a schematic representation of an airbag unit with hinge textiles according to the invention in a perspective view;

Fig. 5 shows the mode of operation of the airbag hinge according to the invention when the airbag is opened during three different states (Z1 , Z2, Z3);

Fig. 6 shows an embodiment of a hinge textile according to the invention in a schematic top view;

Fig. 7 shows a detailed view of a section of the hinge textile.

Fig. 1 shows an airbag unit 200 located on the passenger side of a motor vehicle, which is connected to the motor vehicle. The vehicle interior 300 of the motor vehicle includes a trim panel 302, which conceals the airbag unit 200 from the vehicle interior 300. The trim panel 302 essentially forms the instrument panel of the vehicle. The airbag unit 200 comprises An airbag housing 202, an airbag module 210 comprising an airbag 212, a protective layer 214, a first airbag hinge 100a, and a second airbag hinge 100b. The airbag housing 202 includes an airbag deployment channel 204 and an airbag cover 206 comprising a first airbag flap 208a and a second airbag flap 208b. The surface of the airbag cover 206 facing the vehicle interior 300 rests against the inner surface of the trim panel 302 facing away from the vehicle interior 300.

The housing of the airbag module 210 is predominantly made of metal. The airbag module 210 includes a sensor designed to detect a vehicle impact. The airbag 212 is made of plastic. The protective layer 214 comprises a fabric or non-woven material. The first airbag hinge 100a and the second airbag hinge 100b each have a hinge action. The airbag housing 202 is made of an injection-molded plastic material.

Upon impact of the vehicle, the airbag 212 is inflated by the airbag module 210, and the protective layer 214 is destroyed by the inflated airbag 212. During inflation, the airbag 212 presses against the inner surface of the first airbag flap 208a and the second airbag flap 208b, the surface facing away from the vehicle interior 300. The first airbag flap 208a and the second airbag flap 208b are opened by the inflated airbag 212 due to the hinge action of the airbag hinge 100a, and the second airbag flap 208b are also opened due to the hinge action of the airbag hinge 100b, causing the first airbag flap 208a and the second airbag flap 208b to pivot. By opening and pivoting the first airbag flap 208a and the second airbag flap 208b, the area of the trim 302 covering the first airbag flap 208a and the second airbag flap 208b opens and an area of the inflated airbag 212 protrudes from the trim 302.

Fig. 2 shows a portion of an airbag unit 200 concealed by a fairing 302 of the motor vehicle. The airbag unit 200 comprises an airbag housing 202, an airbag module 210 containing an airbag 212, a protective layer 214, and an airbag hinge 100a. The airbag housing 202 comprises an airbag firing channel 204 and an airbag cover 206 comprising an airbag flap 208a.

The surface of the airbag cover 206 facing the vehicle interior 300 runs parallel to the inner surface of the trim panel 302 facing away from the vehicle interior 300. The airbag deployment channel 204 is arranged perpendicularly to the airbag flap 208a.

The airbag 212 comprises an inflatable air sack made of plastic. The protective layer 214 comprises a plastic fabric or a non-woven material.

Fig. 2a shows another embodiment of an airbag unit 200. It differs from the embodiment in Figures 1 and 2, in particular, in that it has only one airbag flap 208c (U-shaped flap) and consequently only one airbag hinge 100a. Furthermore, the airbag flap 208c is structurally separated from the airbag housing 202, of which only the airbag deployment channel 204 is shown here. The airbag housing 202, with its airbag deployment channel 204, is mounted at the rear to a support structure 196, which acts as an airbag cover facing the vehicle interior 300 and, from the perspective of the vehicle interior 300, simultaneously forms the instrument panel (or dashboard) of the vehicle. A section of the instrument panel, more precisely a section of the support structure 196, forms the airbag flap 208c, with this section being defined by a predetermined breaking point in the form of a reduction in the wall thickness of the support structure 196. The support structure 196 tears open along the predetermined breaking point 208 when the deploying airbag 212 explosively forces the section, more precisely the airbag flap 208c, outwards.

Another significant difference is that, in the embodiment shown in Figure 2a, the airbag hinge 100a is not connected to the airbag deployment channel 204, but rather to the support structure 196, more precisely to that part of the support structure 196 located beyond the airbag flap 208c. Thus, part of the support structure 196 forms a mounting section for the airbag hinge 100a. The airbag hinge 100a comprises

- a hinge textile extending within a textile plane E 10, - a first material area 102a, which is assigned to the fastening section, more precisely a material area of the fastening section of the support structure 196, and which is connected to a first section 12a of the hinge textile 10; and

- a second material area 102b, which is assigned to the airbag flap 208c, more precisely a material area of the airbag flap 208c, and which is connected to a second section 12b of the hinge textile 10.

The second material area 102b is pivotable relative to the first material area 102a about a pivot axis that extends along the predetermined breaking line 208 between the airbag flap 208c and the fastening section of the support structure 196 in order to open the airbag flap 208c.

The hinge textile 10 has textile threads 14 which protrude from the textile plane E along fixing thread sections 16, the fixing thread sections 16 being embedded in the first material area 102a and in the second material area 102b. More precisely, first fixing thread sections 16, 18 are embedded in the plastic of the first material area 102a, i.e., in the support structure 196, and second fixing thread sections 16, 20 are embedded in the plastic of the second material area 102b, i.e., in the airbag flap 208c, the plastics being identical in this embodiment. This embedding is achieved by injection molding the hinge textile 10 with the plastic on the side of the textile plane E from which the fixing thread sections 16, 18, 20 protrude. The fixing thread sections 16, 18, 20 form fixing loops. The hinge textile 10 itself is therefore not embedded, although this would be possible section by section, at least to the extent that a hinge area would remain free.

Furthermore, Figure 2a shows that the hinge textile 10, in the area between the airbag flap 208c and the mounting section of the support structure 196, has hinge thread sections 26 in the form of hinge loops 30 that protrude from the textile plane E, but on the side facing away from the fixing thread sections 16, 18, 20. Figure 2a shows only one such hinge loop 30, while the other hinge loops 30 are located behind the hinge loop 30 shown. Fig. 3 shows an airbag housing 202. The airbag housing 202 includes an airbag cover 206. The airbag cover 206 includes predetermined breaking lines 208, a first airbag flap 208a and a second airbag flap 208b.

The airbag housing 202 is made of an injection-molded plastic material.

When the airbag 212 is deployed, the material of the airbag cover 206 tears or breaks along the predetermined breaking lines 208, and the first airbag flap 208a and the second airbag flap 208b open such that the first airbag flap 208a pivots on a pivot axis 104a and the second airbag flap 208b pivots on a second pivot axis 104b. When the first airbag flap 208a and second airbag flap 208b open, a portion of the inflated airbag 212 leaves the airbag housing 202.

Fig. 3a shows an airbag housing 202 belonging to Figure 2a, which has an airbag cover 206 with predetermined breaking lines 208 and is formed only from an airbag flap 208c. The airbag housing 202 is also made of an injection-molded plastic material.

Figure 4 shows a first airbag hinge 100a and a second airbag hinge 100b, as well as a first hinge fabric 10a and a second hinge fabric 10b. The first airbag hinge 100a and the second airbag hinge 100b each comprise a first material section 102a and a second material section 102b. The first airbag hinge 100a comprises a pivot axis 104a, and the second airbag hinge 100b comprises a pivot axis 104b. The first material section 102a is associated with the airbag deployment channel 204 of the airbag unit 200, which here forms the mounting section for the airbag hinge. The second material section 102b is associated with the first airbag flap 208a and the second airbag flap 208b, respectively. The first hinge textile 10a or second hinge textile 10b comprises a first section 12a and a second section 12b, textile threads 14 and hinge sections 15. The first hinge textile 10a and the second hinge textile 10b are each connected to the first material area 102a in the first section 12a and to the second material area 102b in the second section 12b. The textile threads 14 comprise fixing thread sections 16 and hinge thread sections 26. The fixing thread sections 16 projecting from the textile plane E are embedded in the material of the airbag housing 202. The fixing thread sections 16 embedded in the first material area 102a are first fixing thread sections or channel fixing thread sections 18. The fixing thread sections 16 embedded in the second material area 102b are second fixing thread sections or flap fixing thread sections 20. The fixing thread sections 16 are arranged along a row of fixing thread sections 22. The fixing thread sections 16 are formed as fixing loops 24.

The hinge thread sections 26 have textile threads 14 protruding from the textile plane E, which are not embedded in the material of the airbag housing 202. The hinge thread sections 26 are arranged along a row 28 of hinge thread sections. The hinge thread sections 26 are designed as hinge loops 30. A predetermined breaking line 208 runs between the first airbag flap 208a and the second airbag flap 208b. The side of the first airbag flap 208a and the second airbag flap 208b facing the vehicle interior 300 is covered by a trim panel 302 located in the vehicle interior 300. The airbag module 210, comprising the airbag 212, is covered by the airbag housing 202 in such a way that it is enclosed laterally by the inner wall of the airbag firing channel 204 and is concealed towards the vehicle interior 302 by the first airbag flap 208a and second airbag flap 208b.

The airbag housing 202, the airbag deployment channel 204, the first airbag flap 208a, and the second airbag flap 208b are manufactured using plastic injection molding. The textile threads 14 comprise natural fibers. The fixing thread sections 16, which protrude from the textile plane E, are overmolded in the plastic injection molding process such that they are embedded in the plastic injection molding material of the airbag housing 202. The fixing thread sections 16 protrude between 0.5 mm and 8 mm from the textile plane E. The hinge thread sections 26 also protrude between 0.5 mm and 8 mm from the textile plane E. The fixing loops 24 have a three-dimensional structure. The hinge loops 30 have a three-dimensional structure. Along the predetermined breaking line 208, the injection-molded plastic material of the airbag housing 202 has a reduced thickness compared to the injection-molded plastic material of the airbag housing 202 outside the area of the predetermined breaking line 208.

When the airbag 212 is deployed, it is inflated by the airbag module 210. The inflated airbag 212 presses against the inner surface of the first airbag flap 208a and the second airbag flap 208b. The predetermined breaking line 208 tears, and the first airbag flap 208a pivots along the pivot axis 104a, and the second airbag flap 208b also pivots along the pivot axis 104b. The inflated airbag 212 protrudes partially from the airbag housing 202 between the open first airbag flap 208a and the open second airbag flap 208b.

Fig. 5 shows an airbag unit 200, a first airbag hinge 100a with a hinge action, a second airbag hinge 100b with a hinge action, and a first hinge textile 10a and a second hinge textile 10b. The airbag unit 200 comprises an airbag 212 and an airbag housing 202 with an airbag deployment channel 204, an airbag cover 206 comprising predetermined breaking lines 208, a first airbag flap 208a, and a second airbag flap 208b. The first hinge textile 10a and the second hinge textile 10b each comprise sacrificial threads 32, stop threads 34, and hinge thread sections 26 designed as hinge loops 30, which protrude from the plane of the textile.

In the closed state Z1, the first airbag flap 208a and second airbag flap 208b are oriented perpendicular to the airbag deployment channel 204. The hinge loops 30 protrude from the textile plane E without tension.

In the first open state Z2, the airbag 212 is partially inflated. The partially inflated airbag 212 presses against the inner surface of the first airbag flap 208a and second airbag flap 208b facing the airbag 212, and the predetermined breaking lines 208 tear. Due to the hinge action of the first airbag hinge 100a, the first airbag flap 208a pivots in a direction away from the airbag 212, and the second airbag flap 208b pivots Due to the hinge action of the second airbag hinge 100b, the airbag 212 pivots in a direction away from the airbag. The airbag 212 protrudes partially beyond the airbag cover 206. The first airbag flap 208a and the second airbag flap 208b pivot in such a way that an opening forms between them. The portion of the hinge loops 30 protruding from the textile plane E is shortened due to the pivoting of the first airbag flap 208a and the second airbag flap 208b. The sacrificial threads 32 are under increased tension relative to the closed state Z1.

In a second open state Z3, the airbag 212 is fully inflated. The fully inflated airbag 212 pushes the first airbag flap 208a and second airbag flap 208b open in such a way that they continue to pivot in a direction away from the airbag 212. The sacrificial threads 32 are broken, and the portion of the hinge loops 30 that protrudes from the textile plane E in the closed state Z1 and the first open state Z2 is shortened to such an extent that the hinge loops 30 lie completely within the textile plane E. A larger area of the airbag 212 protrudes beyond the airbag cover 206 relative to the first open state Z2.

Fig. 6 shows a hinge textile 10 according to the invention in the form of a woven fabric. The hinge textile 10 has a basic structure consisting of warp threads 32 and weft threads 36, 37. The warp threads 32 are interwoven with the weft threads 36, 37 in the manner of warp threads. The hinge textile also comprises textile threads 14 (functional threads) that fulfill several special functions. The textile threads 14 are also interwoven with the weft threads in the manner of warp threads and extend substantially parallel to the warp threads 32. The textile threads 14 have a higher tensile strength than the warp threads 32 and withstand the enormous tensile forces with which the airbag flap 208a, 208b, 208c pulls on the mounting section 196, 204, so that the textile threads 14 do not break. The textile threads 14 can be described as stop threads 34 because they prevent movement of the airbag flap 208a, 208b, 208c from the fastening section 196, 204. The base threads 32 have a lower tensile strength compared to the textile threads 14. The base threads 32 break when the airbag flap 208a, 208b, 208c opens, which is why they can be described as sacrificial threads. The base threads 32 are comparatively The base threads are thin, while the textile threads 14 are much wider and woven flat into the base structure. The base threads 32 are made of cotton, while the textile threads 14 are bundles of individual fibers (multifilament) and are made of polyester. Of course, other materials are also possible.

The orientation of the threads in the hinge textile 10 is such that the base threads 32 and the textile threads 14 extend perpendicular to the hinge axis 104a, 104b, i.e. essentially in the direction of the forces acting on the hinge area 15.

The base threads 32 and the textile threads 14 are grouped together in groups 40 such that they lie adjacent to each other with reduced or no penetration of the respective plastic (the airbag flap or the mounting section), so that little or no plastic can penetrate through them. This is due to the fact that the base threads 32 and the textile threads 14 lie against each other. In contrast, channels 50 are formed between the groups 40, which are open to the plastic, meaning that the plastic can pass through the channels 50 unhindered.

In the embodiment shown in Figure 6, the groups 40 each have two textile threads 14, which lie directly adjacent to each other and are interwoven with the weft threads 36, 37 in an offset position, and four base threads 32, of which two base threads 32 form a pair, and the pairs flank the textile threads 14 to the right and left. Of course, other arrangements are also possible. For example, there can be more than two textile threads 14 in a group 40, and fewer or more than six base threads in a group 40. Furthermore, one or more base threads 32 can be located between two textile threads 14. In addition, not all groups 40 need to be identical, in particular not all have to be the same width, but can have different numbers and arrangements of base and textile threads 32, 14. Likewise, not all lanes 50 need to have the same width B1. The lanes 50 can instead have a first width B1 in a first area of the hinge textile 10 and in a second The area of the hinge textile 10 has a second width B2 that differs from the first width.

In the embodiment shown in Figure 6, the lanes 50 have a width B1 of approximately 2 mm and the groups 40 have a width G of approximately 3 mm. Thus, along a direction transverse to the textile threads 14, one of the groups 40 is located every 5 mm, and the hinge textile 10 has a penetration openness for the respective plastic of approximately 40% (2/5). However, the presence of the weft threads 36, 37 reduces the penetration openness.

Figure 7 shows a section of the hinge textile 10 from Figure 6 comprising a group 40. In the lower part of Figure 7, a cross-section through the hinge textile 10 is shown along the section line A-A through a weft thread 36, such that the base and textile threads 32, 14 lie on different planes. Nevertheless, it is evident that they lie directly against each other and are thus penetration-proof for plastic. Furthermore, the cross-section illustrates that the textile threads 14 have a greater width than thickness and are arranged so flat in the hinge textile 10 that they extend in the direction of their length and width parallel to a textile plane E of the hinge textile 10.

As further illustrated in Figure 7, the textile threads 14 have fixing thread sections 16 in which they form a fixing loop 24, and hinge thread sections 26 in which they form a hinge loop 30, each of the textile threads 14 having one fixing loop 24 and one hinge loop 30. The fixing loops 24 project out of the textile plane E towards the top surface O of the fabric. The hinge loops 30 project out of the textile plane E towards the underside U of the fabric. The loops 24 and 30 each skip two of the weft threads 37, which are shown here as dashed lines.

It should be noted that the foregoing description is given merely as an example for illustrative purposes and in no way limits the scope of protection of the invention. Features of the invention that are indicated as "may", "exemplary", "preferred", "optional", "ideal", "advantageous", "if applicable" or "suitable" are to be considered purely optional and do not limit the scope of protection. The scope of protection is also not included, which is defined exclusively by the claims. Insofar as the foregoing description mentions elements, components, process steps, values, or information that have known, obvious, or foreseeable equivalents, these equivalents are also encompassed by the invention. Likewise, the invention includes any changes, alterations, or modifications of embodiments that involve the replacement, addition, modification, or omission of elements, components, process steps, values, or information, as long as the fundamental concept of the invention is retained, regardless of whether the change, alteration, or modification leads to an improvement or deterioration of an embodiment.

Although the foregoing description of the invention mentions a multitude of physical, intangible, or process-related features relating to one or more specific embodiments, these features can also be used in isolation from the specific embodiment, at least insofar as they do not necessarily require the presence of further features. Conversely, these features mentioned in relation to one or more specific embodiments can be combined arbitrarily with one another and with further disclosed or undisclosed features of illustrated or unillustrated embodiments, at least insofar as the features do not mutually exclude each other or lead to technical incompatibilities.

Reference sign

10, 10a, 10b Hinge textile

12a, 12b Sections of the hinge textile

14 textile threads

15 hinge sections

16 fixing thread sections

18 channel fixing thread sections

20 flap fixing thread sections

22 rows of fixing thread sections 4 fixing loops 6 hinge thread section 8 hinge thread section row 0 hinge loops

32 basic threads, sacrificial threads

34 stopper threads

36 weft threads

37 weft threads with increased friction

38 dropped weft threads

Group 40

50 Alley

100a, 100b Airbag hinge

102a, 102b Material areas

104, 104a, 104b Swivel axes

196 Support structure

200 airbag units

202 Airbag housings

204 Airbag firing channel

206 Airbag cover

208 Break line

208a, 208b, 208c airbag flap

210 Airbag module

212 Airbag

214 Protective position

300 vehicle interior

302 Trim

E Textile level

S side cut

U fabric underside

0 Tissue top

Z1 closed state

Z2 first opened state Z3 second open state

V1 first process step

V2 second process step

M Machine direction

T Textile sector

Claims

Claims 1. Hinge textile (10, 10a, 10b) for forming an airbag hinge (100a, 100b) between an airbag flap (208a, 208b, 208c) and a mounting section (196, 204), wherein the hinge textile (10, 10a, 10b) is provided to be embedded with a first section (12a) in a first material area (102a) made of plastic of a mounting section (196, 204), and/or with a second section (12b) in a second material area (102b) made of plastic of the airbag flap (208a, 208b, 208c), and comprises textile threads (14), characterized in that groups (40) of two or more textile threads (14) are formed in which the textile threads (14) lie next to each other in a manner that reduces or densifies penetration of the respective plastic, and that lanes (50) are formed between the groups (40) which are open to the penetration of the plastic. 2. Hinge textile (10, 10a, 10b) according to claim 1 , characterized in that the groups (40) each comprise one or more base threads (32) of a basic structure of the hinge textile (10, 10a, 10b), and that the base thread(s) (32) are/are located next to the textile threads (14) of the respective group in a penetration-tight manner for the respective plastic. 3. Hinge textile (10, 10a, 10b) according to claim 2, characterized in that at least one of the base threads (32), preferably two of the base threads (32) forming pairs, flank the textile threads (14) to the right and left side within the group. 4. Hinge textile (10, 10a, 10b) according to claim 2 or 3, characterized in that at least one of the base threads (32) within the group lies between two textile threads (14). 5. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that the lanes (50) have a width (B1 , B2) between 1mm and 3mm, preferably approx. 2mm. 6. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that the lanes (50) in a first area of the hinge textile (10, 10a, 10b) have a first width (B1) and in a second area of the hinge textile (10, 10a, 10b) have a second width (B2) which differs from the first width. 7. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that the groups (40) have a width (G) of 2mm to 4mm, preferably approximately 3mm. 8. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that along a direction transverse to the textile threads (14) one of the groups (40) lies every 3mm to 7mm, preferably every 5mm. 9. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized by a penetration openness for the respective plastic between 30% and 50%, preferably approx. 40%. 10. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that the textile threads (14) have a greater width than thickness and are arranged so flat in the hinge textile (10, 10a, 10b) that they extend in the direction of their length and width parallel to a textile plane (E) of the hinge textile (10, 10a, 10b). 11. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that the textile threads (14) - have fixing thread sections (16) protruding from a textile layer (E) of the hinge textile (10, 10a, 10b) for embedding in the airbag flap (208a, 208b, 208c) and/or in the fastening section (196, 204), and/or - have hinge thread sections (26) protruding from the textile plane (E) of the hinge textile (10, 10a, 10b) to form a path-extending material reservoir between the airbag flap (208a, 208b, 208c) and the fastening section (196, 204) to allow the airbag flap (208a, 208b, 208c) to pivot relative to the fastening section (196, 204). 12. Hinge textile (10, 10a, 10b) according to claim 11 , characterized in that the fixing thread sections (16) form at least one fixing thread section row (22) and/or that the hinge thread sections (26) form at least one hinge thread section row (28). 13. Hinge textile (10, 10a, 10b) according to claim 12, characterized in that the fixing thread section row (22) extends parallel to a pivot axis (104, 104a, 104b) between the airbag flap (208a, 208b, 208c) and the fastening section (196, 204) and/or that the hinge thread section row (28) extends along the pivot axis (104, 104a, 104b). 14. Hinge textile (10, 10a, 10b) according to claim 11, 12 or 13, characterized in that the fixing thread sections (16) and the hinge thread sections (26) protrude from the textile plane (E) on different sides of the hinge textile (10, 10a, 10b). 15. Hinge textile (10, 10a, 10b) according to one of claims 11 to 14, characterized in that the fixing thread sections (16) form one or more fixing loops (24) and/or that the hinge thread sections (26) form one or more hinge loops (30). 16. Airbag hinge (100a, 100b) according to claim 15, characterized in that the one or more fixing loops (24) and the one or more hinge loops (30) have different or identical loop lengths and/or a have a different number of loops or a matching number of loops. 17. Hinge textile (10, 10a, 10b) according to claim 2 and one of claims 11 to 14, characterized in that the fixing thread sections (16) and/or the hinge thread sections (26) give the textile threads (14) a greater length than the base threads (32). 18. Hinge textile (10, 10a, 10b) at least according to claim 2, characterized in that the textile threads (14) have a greater tensile strength than the base threads (32). 19. Hinge textile (10, 10a, 10b) at least according to claim 2, characterized in that the base threads form sacrificial threads (32) which are arranged to break when the airbag (212) of the airbag unit (200) is triggered, and that the textile threads (14) form stop threads (34) which are arranged to hold the airbag flap (208a, 208b, 208c) on the fastening section (196, 204) when the airbag (212) is triggered. 20. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that the textile threads (14) are bundles of fibers made up of a plurality of fibers. 21. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that the textile fibers (14) consist of polyester. 22. Hinge textile (10, 10a, 10b) at least according to claim 2, characterized in that the base threads (14) consist of cotton. 23. Hinge textile (10, 10a, 10b) according to one of the preceding claims, characterized in that it forms a fabric in which the textile threads (14) are warp threads. 24. Airbag hinge (100a, 100b) for connecting an airbag flap (208a, 208b, 208c) to a mounting section (196, 204), with - a hinge textile (10, 10a, 10b) extending within a textile plane (E); - a first material area (102a) made of plastic, which is assigned to the fastening section (196, 204) and which is connected to a first section (12a) of the hinge textile (10, 10a, 10b); and - a second material area (102b) made of plastic, which is associated with the airbag flap (208a, 208b, 208c) and is connected to a second section (12b) of the hinge textile (10, 10a, 10b); wherein the second material area (102b) is pivotable relative to the first material area (102a) for opening the airbag flap (208a, 208b, 208c); characterized in that the hinge textile (10, 10a, 10b) is designed according to one of claims 1 to 22, and the plastic of the first material area (102a) and/or the plastic of the second material area (102b) penetrates the channels (50), so that the first and/or second section (12a, 12b) of the hinge textile (10, 10a, 10b) is embedded in the respective plastic. 25. Airbag hinge (100a, 100b) according to claim 24, characterized in that the fastening section (196, 204) is part of a support structure (196) forming, at least co-forming and/or supporting an instrument panel (302). 26. Airbag hinge (100a, 100b) according to claim 24, characterized in that the fastening section (196, 204) is an airbag deployment channel (204) of an airbag housing (202), which also includes the airbag flap (208a, 208b).