EP3749800A1 - Matière de garniture conçue pour recouvrir un ensemble sac gonflable - Google Patents

Matière de garniture conçue pour recouvrir un ensemble sac gonflable

Info

Publication number
EP3749800A1
EP3749800A1 EP19700339.5A EP19700339A EP3749800A1 EP 3749800 A1 EP3749800 A1 EP 3749800A1 EP 19700339 A EP19700339 A EP 19700339A EP 3749800 A1 EP3749800 A1 EP 3749800A1
Authority
EP
European Patent Office
Prior art keywords
material according
covering material
coating
covering
textile carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19700339.5A
Other languages
German (de)
English (en)
Inventor
Gabriele Wittmann
Birgit Kammerer
Sonja Kaspar
Matthias Knecht
Barbara Knerr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konrad Hornschuch AG
Original Assignee
Konrad Hornschuch AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konrad Hornschuch AG filed Critical Konrad Hornschuch AG
Publication of EP3749800A1 publication Critical patent/EP3749800A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using knitted fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/142—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer
    • D06N3/144—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes mixture of polyurethanes with other resins in the same layer with polyurethane and polymerisation products, e.g. acrylics, PVC
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/042—Polyolefin (co)polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/10—Properties of the materials having mechanical properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/26—Vehicles, transportation
    • D06N2211/263—Cars

Definitions

  • the invention relates to a cover material for covering an airbag unit, as used for example in automotive interiors as cover material or surface material for instrument panels, door panels, seat structures and the like, to conceal an airbag unit under a visually appealing surface.
  • the cover material either from the outset has a visible opening line for the deployment of the airbag, but this is optically undesirable or the cover material is weakened in the region of the desired opening line. leads to allow the deployment of the airbag.
  • This weakening of the material previously required additional work steps, such as laser processing or a cold knife cut, which entail undesirable expense and, moreover, involve the danger that the lines of weakness become visible, which is undesirable for reasons of optical clarity.
  • the cover material is produced from a textile fabric or knitted fabric into which one or more threads of lower tear strength are incorporated in the region of the desired weakening lines in order to achieve the desired weakening lines or set breaking point.
  • the formation of the reference material of an optically advantageous leather imitation not provided, but rather the textile stressessma- material forms the visible surface.
  • the object of the invention is to propose a cover material of the type mentioned initially, which is designed in the manner of an artificial leather with a leather-like surface, can be produced simply and efficiently and, moreover, without the risk of visible weakening lines or the need for subsequently introduced weakening lines, the desired unfolding the covered airbag unit ensures.
  • the invention proposes, starting from a known artificial leather structure with textile carrier material of threads and adhesion on the textile carrier material applied coating on the basis of thermoplastic materials, the textile carrier material in such a way that it in a longitudinal direction and / or the orthogonal transverse direction a plurality has line-shaped areas with lower strength than in the remaining areas.
  • These line-shaped areas of lesser strength form in the resulting cover material according to the invention after application of the coating from the outside invisible lines of weakness for the cover material, since the coating is homogeneously applied to the textile substrate and covers the linear areas contained therein lesser strength.
  • these line-shaped regions of lesser strength in the textile carrier material mean that the obtained covering material has a maximum tensile force of only 150-700 N and a tear propagation resistance of 3-45 minutes along the lines of weakness defined by the linear regions of lesser strength, whereas the corresponding values outside the lines of weakening of the cover material according to the invention are significantly higher.
  • the strength of the cover material according to the invention is accordingly reduced depending on the course of the lower-strength linear portions in the textile support only in its longitudinal direction and / or in the transverse direction so that the cover material tears reliably when a covered airbag unit is triggered along the weakening line.
  • the cover material can be positioned almost arbitrarily with respect to the airbag unit to be covered, as when selecting a sufficiently small distance between the individual linear areas always a appropriate cover is guaranteed with the airbag unit to be covered.
  • the cover material according to the invention can thus be separated almost arbitrarily and efficiently from web material to the respectively required component blanks.
  • cover material according to the invention permits extraordinary design freedom and variety, since the possible blanks made from the web material can have very narrow radii.
  • cover material according to the invention can be sewed without problem.
  • the cover material according to the invention can be sewed as planed fabric without sewing, for example as a stamped part directly or else in a complex form
  • the weakening lines are positioned at a distance of approximately 0.5-500 mm from one another in parallel, wherein in particular a regularly repeating grid-like arrangement of the weakening lines can be provided.
  • the cover material along the weakening lines has a maximum tensile force extension of about 3 to 200% in order to effectively support the tearing process.
  • the required for the separation of the carrier material from the coating release force in a temperature range between -40 ° C and 120 ° C is greater than 18 N / 5 m.
  • This temperature range represents the expected range of use in the context of a motor vehicle, within which also the strength values already explained above in the area of the weakening lines must be maintained.
  • the reference material according to the invention has a basis weight of a total of about 300-1200 g / m 2 in order to ensure good processability.
  • the linear regions of lesser strength of the textile carrier material can be formed according to a proposal of the invention by using thinner and / or lower strength threads in these linear regions.
  • an influence of the strength on a change of the structure of the textile carrier material in the line-shaped areas of lower strength for example by processing in the manner of a perforated fillet, etc., can be effected.
  • the resulting linear weakening of the strength in the overall composite of the cover material according to the invention in the longitudinal and / or transverse direction brings about the desired tear-open functionality with respect to the covered airbag unit.
  • the linear weakening can not be visually recognized on the surface of the cover material according to the invention.
  • the textile carrier material of the cover material according to the invention may be formed according to a proposal of the invention based on threads or yarns of polyester, polyamide, polyacetate, viscose rayon and cotton or cotton. Also suitable threads or yarns from other renewable raw materials come into consideration.
  • the threads or yarns can be processed as a woven, knitted, knitted or nonwoven fabric to textile carrier material.
  • the reference material according to the invention has a total thickness of about 0.5 to 5 mm, of which about 0.1 to 4.8 mm on the coating and correspondingly 0.2 to 4.9 mm on the textile Carrier material omitted.
  • the coating of the cover material according to the invention can be prepared in a manner known per se, for example based on PVC, a polyurethane or even a thermoplastic polyolefin, ie. H. a mixture of a polyolefin based plastic (usually PP) and an elastomer such as e.g. EPDM or mixtures thereof may be formed.
  • the coating can be formed on the textile carrier material either as a single layer or in the form of several identical or different discretely successive layers. Both crosslinked and uncrosslinked plastics can be used to form the individual layers, as well as compact and foamed structures for forming the individual layers.
  • the layer thickness can be up to 4.8 mm in the case of a single layer, and in the case of a multi-layered formation of the coating, a single layer can be formed from a layer thickness of about 1 ⁇ m.
  • At least one lacquer layer can be applied to the coating on the visible side in order to realize desired functional layers (for example with regard to abrasion resistance, water-repellent properties) or print layers for a desired coloration.
  • desired functional layers for example with regard to abrasion resistance, water-repellent properties
  • print layers for a desired coloration.
  • up to 6 printing layers are considered useful.
  • the visible surface of the reference material according to the invention may be provided with a profiling, for example an embossing in the manner of a leather grain.
  • a profiling for example an embossing in the manner of a leather grain.
  • embossing can be formed, for example, by vacuum embossing, embossing between pairs of steel rolls, and by constructing the coating on a removable profiled backing, for example a release paper or a steel embossing tape in the so-called reverse process.
  • Figure 1 in a greatly enlarged schematic representation of a section through a reference material according to the invention
  • Figure 2 in a schematic perspective view a partially cut
  • FIG. 1 shows a cross-section of a cover material 3 for the cover of an airbag unit, not shown here, in a motor vehicle interior, for example in the region of the dashboard.
  • the cover material has on the underside a textile substrate 1, which is formed for example of polyester threads in the form of a fabric with running in a longitudinal direction L warp threads and in a transverse direction Q weft threads, see Figure 2.
  • a multilayer coating 2 is applied to this textile carrier material 1, wherein the layer directly on the textile carrier material 1 is denoted by reference numeral 20 and the subsequent layer discretely applied thereto is designated by reference numeral 21.
  • These may be, for example, compact layers based on PVC or polyurethane, wherein, in particular, the layer 20 is adapted in its formulation in such a way that it forms a particularly intimate affinity to the underlying textile substrate 1, at least in a temperature range between -40 ° C and 120 ° C.
  • the achieved adhesion causes separation forces between the textile carrier material 1 and the coating of well over 18 N / 5 m.
  • a foamed layer 22 On the compact layer 21 is a foamed layer 22, for example, also based on PVC or polyurethane applied, which gives the entire coating 2 a pleasant soft and elastic grip.
  • a further compact layer 23 of compatible plastic closes on.
  • the uppermost layer 24, which also forms the visible surface or visible side S, can be formed, for example, by a pressure layer, which moreover can also be provided with a surface profiling, for example in the form of a leather grain.
  • the cover material 3 can be classified as artificial leather.
  • linear regions 100 of lesser strength are formed in the textile substrate 1 along the longitudinal direction L and along the orthogonal transverse direction Q than in the remaining regions 101 which run parallel to one another and, for example, a regular distance A from each other by about 1 mm.
  • These line-shaped regions 100 of lesser strength are formed by the respective warp threads lying on the line-shaped regions 100 or
  • weft threads have a lower strength than those threads that are interwoven in the other areas 101 to the textile substrate 1. This can be achieved, for example, by using threads with a smaller diameter than the remaining regions 101.
  • the line-shaped regions 100 may be arranged at regular intervals over the entire longitudinal and / or transverse direction (L, Q).
  • the textile carrier material 1 thus has line-shaped weakened regions along the line-shaped regions 100 of lesser strength at the selected distance A, and after the coating 2 has been applied to the textile carrier material 1 to form the reference material 3 within the resulting reference material 3, weakening lines 30 are obtained define, which run exactly along the course of the line-shaped regions 100 of lesser strength in the textile substrate 1. However, due to the homogeneous coating 2 on the visible side of the textile support 1, these are not visually recognizable.
  • the cover material 3 has a maximum tensile force of only 150-700 N, a tear propagation resistance of 3-45 N and a maximum tensile elongation at break of 3-200% along the course of the weakening lines 30. Depending on the positioning, these can run both along the longitudinal direction L and along the transverse direction Q or both along the longitudinal direction L and the transverse direction Q.
  • the significantly higher strength of the cover material 3 outside the weakening lines 30 ensures sufficient stability and sewability of the cover material 3 for applications in the vehicle interior.
  • covering materials For the construction of covering materials for covering an airbag unit in automotive interiors, covering materials have been produced from a lower-side textile carrier material and top-applied coatings in various designs and tested with regard to their tear-off properties.
  • a textile support material was either warp knitted fabric of 100% polyacetate fibers, weight 50-350 g / m 2 , thickness 0.2-1, 2 mm or circular knitted fabric made of 100% polyester fibers, weight 50-350 g / m 2 , thickness 0.20-1, 20 mm, each with line-shaped areas of lower strength in both the longitudinal and transverse directions (Example 1) on the one hand and only in the transverse direction (Example 2) on the other hand and provided with the following examples of a coating. Coating based on PVC
  • the obtained upholstery materials had a leather-like structure and could be stitched as synthetic leather upholstery for dashboards, door panels and seat coverings for covering airbag units in the motor vehicle interior and ensured reliable tearing for deployment of the airbag without fixed positioning with respect to the airbag unit to be covered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne une matière de garniture conçue pour recouvrir un ensemble sac gonflable, comprenant une matière de support (1) textile constituée de fils et un revêtement (2) à base de thermoplastiques qui est appliqué, côté visible, sur la matière de support (1) textile. Cette matière de support (1) textile comporte, dans une direction longitudinale (L) et/ou dans la direction transversale (Q) s'étendant perpendiculairement à celle-ci, des zones linéaires (100) présentant une solidité inférieure à celle des zones restantes (101), lesquelles forment des lignes d'affaiblissement (30) pour la matière de garniture (3). De plus, la matière de garniture présente le long de ces lignes d'affaiblissement (30) une résistance à la rupture maximale comprise entre 150 et 700 N et une résistance à la propagation de la rupture comprise entre 3 et 45 N.
EP19700339.5A 2018-02-06 2019-01-07 Matière de garniture conçue pour recouvrir un ensemble sac gonflable Pending EP3749800A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018102632.3A DE102018102632A1 (de) 2018-02-06 2018-02-06 Bezugsmaterial zur Abdeckung einer Airbageinheit
PCT/EP2019/050193 WO2019154566A1 (fr) 2018-02-06 2019-01-07 Matière de garniture conçue pour recouvrir un ensemble sac gonflable

Publications (1)

Publication Number Publication Date
EP3749800A1 true EP3749800A1 (fr) 2020-12-16

Family

ID=65013682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19700339.5A Pending EP3749800A1 (fr) 2018-02-06 2019-01-07 Matière de garniture conçue pour recouvrir un ensemble sac gonflable

Country Status (5)

Country Link
US (1) US20210221318A1 (fr)
EP (1) EP3749800A1 (fr)
CN (1) CN111936694A (fr)
DE (1) DE102018102632A1 (fr)
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DE102021207774A1 (de) 2021-07-21 2023-01-26 Volkswagen Aktiengesellschaft Innenverkleidungsteil zur Abdeckung einer Airbag-Einrichtung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005537164A (ja) 2001-10-12 2005-12-08 ダイムラークライスラー・アクチェンゲゼルシャフト エアバッグ装置の覆い要素
DE10254377B3 (de) * 2002-11-19 2004-03-18 Jenoptik Automatisierungstechnik Gmbh Verfahren zum Erzeugen einer integrierten Sollbruchlinie in ein flächenhaftes Gebilde
DE10352566A1 (de) * 2003-11-11 2005-06-09 Bayerische Motoren Werke Ag Airbaganordnung für Fahrzeuge
DE102004010359A1 (de) 2004-03-03 2005-09-22 Siemens Ag Verkleidung für eine Kraftfahrzeuginnenausstattung
DE102008011519A1 (de) * 2008-02-25 2009-09-03 Faurecia Innenraum Systeme Gmbh Innenverkleidungsteil
WO2010049759A1 (fr) * 2008-10-30 2010-05-06 Faurecia Interieur Industrie Procédé de fabrication d’une partie habillage intérieur d’automobile pourvue d’une protection de coussin gonflable, et machine associée
DE102010010524B4 (de) * 2010-03-05 2013-11-07 Müller Textil GmbH Abstandstextil, insbesondere Abstandsgewirke
US20120025566A1 (en) * 2010-07-27 2012-02-02 Faurecia Interior Systems Inc. Self-Tearing Interior Wrap
DE102010062606B4 (de) * 2010-12-08 2013-09-19 Lisa Dräxlmaier GmbH Rissoptimierte Airbagabdeckung
DE112012005244B4 (de) * 2011-12-15 2022-01-05 Faurecia Interior Systems, Inc. Verfahren zum Herstellen eines Fahrzeuginnenpaneels mit unsichtbarer Airbagreißnaht sowie Fahrzeuginnenpaneel mit unsichtbarer Airbagreißnaht und Fahrzeugarmaturenbrett aufweisend ein Fahrzeuginnenpaneel mit unsichtbarer Airbagreißnaht
DE102012214909B3 (de) * 2012-08-22 2014-01-02 Lisa Dräxlmaier GmbH Bauteil für ein Fahrzeug mit Airbag
DE102014103940A1 (de) * 2014-03-21 2015-09-24 Faurecia Innenraum Systeme Gmbh Airbagabdeckung
US9771044B1 (en) * 2016-04-25 2017-09-26 Ford Global Technologies, Llc Leather trim panel skin hidden tear seam with disrupted fiber matrix

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DE102018102632A1 (de) 2019-08-08
CN111936694A (zh) 2020-11-13
US20210221318A1 (en) 2021-07-22
WO2019154566A1 (fr) 2019-08-15

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