EP1996434A1 - Articulation à charnière pour couvercle de coussin gonflable de sécurité - Google Patents

Articulation à charnière pour couvercle de coussin gonflable de sécurité

Info

Publication number
EP1996434A1
EP1996434A1 EP07722076A EP07722076A EP1996434A1 EP 1996434 A1 EP1996434 A1 EP 1996434A1 EP 07722076 A EP07722076 A EP 07722076A EP 07722076 A EP07722076 A EP 07722076A EP 1996434 A1 EP1996434 A1 EP 1996434A1
Authority
EP
European Patent Office
Prior art keywords
surface element
hinge
airbag cover
textile surface
matrix
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.)
Withdrawn
Application number
EP07722076A
Other languages
German (de)
English (en)
Inventor
Martin Bittner
Hartmut Harnisch
Peter Haubach
Johannes Jordan
Martin Lippert
Albert Roring
Lars Kischa
Michael Grimmelt
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.)
Johnson Controls Interiors GmbH and Co KG
KL Kaschier und Laminier GmbH
Original Assignee
Johnson Controls Interiors GmbH and Co KG
KL Kaschier und Laminier GmbH
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 Johnson Controls Interiors GmbH and Co KG, KL Kaschier und Laminier GmbH filed Critical Johnson Controls Interiors GmbH and Co KG
Publication of EP1996434A1 publication Critical patent/EP1996434A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B60R2021/21537—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 hinges

Definitions

  • the invention relates to a hinge for an airbag cover, which finds particular application in interiors of motor vehicles.
  • Airbag covers are arranged, for example, in dashboards and cover the undissolved airbag underneath. Corresponding airbag covers are for example also in headrests, seat backs and other places in the interior of motor vehicles.
  • the opening airbag causes a pressure on the airbag cover, which then dissolves, for example in the region of predetermined breaking points of the area surrounding the airbag cover and a Moves hinge and thus free the space for the opening airbag.
  • the problem with the airbag shot may be that the airbag cover dissolves completely or partially and leads to a risk to persons in the interior of the vehicle.
  • Element is known as a hinge between the airbag flap and the airbag flap area, which has an excess length to prevent the detachment of the airbag cover, which typically forms a loop.
  • this loop it is achieved that, after the airbag flap has been folded out, a complete detachment of the airbag flap is avoided and, secondly, a subsequent closing of the airbag flap after the airbag shot is prevented.
  • opening the airbag flap may come in the case of the airbag shot.
  • the object of the invention is to make the hinge for an airbag cover cost-effective and safe for another, so that there is no danger of the airbag cover becoming completely or partially uncontrolled.
  • Carrier of the airbag cover or an associated part is anchored, z.
  • Carrier of the airbag cover or an associated part is anchored, z.
  • the textile surface element at least partially, optionally also over the entire surface of the matrix z.
  • the carrier of the airbag cover unfastens or solves and thereby absorbs forces and in a further pivoting of the cover, the remaining forces are absorbed over the entire surface by the stretching of the textile surface element.
  • the matrix is formed integrally with the carrier of the airbag cover, d. h.
  • the textile fabric can be foamed, back-injected, injected, pressed or cast in such a way that a lower part of the textile fabric are embedded in the mass forming the carrier over its entire surface, while another area of the textile Sheet remains free; z.
  • the entire flow through the fabric can be intentionally prevented or controlled by the mass forming the backing.
  • the matrix receiving the textile fabric may also be designed as a component separate from the carrier of the airbag cover, so that this
  • Component can be initially produced together with its matrix and then connected to the carrier in a further processing step.
  • Plastic exist, such as various thermoplastics, such as polypropylene, ABS or the like to allow a particularly easy and cost manufacturability of the airbag cover.
  • the area of the textile surface element embedded in the matrix is at least half the thickness of the textile surface element and tests have shown that embedding from 50 to 95% of the textile surface element yields excellent results.
  • the textile surface element is formed as a knit, which has the advantage that it has a high structural elongation over the entire textile surface and is therefore able to perform well in the case of the airbag shot. absorb forces impinging on the herniation into the carrier matrix, especially when using a knit having a high multiaxial design strain.
  • An advantageous embodiment is also achieved if, instead of a knitted fabric, a fabric is used as a textile surface element, which according to the main claim over the entire surface, but not completely flowed through can be embedded in the corresponding matrix.
  • the textile surface element may be formed folded such that the folds in the lower part (cross section) in the corresponding matrix, for. B. the carrier of the airbag cover are embedded and an upper part of the folds (cross section) z. B. the pleat heads are arranged outside this embedding area.
  • the textile fabric can be made, for example, of polyester which has such a heat resistance that the area embedded in the matrix, for example in the case of
  • the textile fabric is designed as a multiaxial textile structure in order to be able to absorb a large part of the forces occurring in the entirety of the entire surface during the swinging of the hinge.
  • a favorable manufacturability of the proposed hinge is then made possible if a barrier effect is achieved on the side of the textile surface element facing the wearer of the airbag cover, which has a higher flow resistance z. B. for melt than the textile surface element itself.
  • This flow-changing position or barrier of the textile surface element makes it possible that the textile surface element is not completely flowed through and a full-surface embedding of the lower part / the lower layer) to the carrier matrix of the airbag cover out.
  • This flow-altering layer or barrier may e.g. be formed by a coating of the textile surface element. It is also possible, in the area of the textile area building, to have different areas with different flow resistances, eg. B. form for melt, wherein the region with higher flow resistance faces the wearer of the airbag cover.
  • FIG. 1 shows an opened after the airbag shot airbag cover
  • FIG. 2 shows an enlarged view in FIG
  • FIG. 2 shows a cross-section of a first embodiment of an embedding of a coated textile fabric in the area of the hinge of an airbag cover.
  • FIG. 3 shows an enlarged illustration of a further exemplary embodiment of an insert. tion of a textile fabric in the area of the hinge for the airbag cover, and
  • Fig. 4 shows an enlarged view of a cross section through the hinge of a
  • Airbag cover when opening the same when airbag shot.
  • FIG. 1 there is shown an airbag cover 1 which is opened in this figure and a hinge
  • the airbag cover environment area 3 that is, for example, a dashboard, a headrest, a side rest of a vehicle seat, a pillar, a vehicle interior trim u. like.
  • the airbag cover 1 is constructed in the hinge region of a carrier 4, which may consist of plastic, in particular a thermoplastic such as polypropylene. To the interior of the vehicle, a layer of applied on the carrier 4 takes place
  • the carrier 4 is shown interrupted in this embodiment, since the thickness or thickness of the carrier 4 - be preferably 2-3 mm, depends on the respective size of the airbag cover 1.
  • the layer 7 is provided as a flow-inhibiting layer for the carrier 4 forming thermoplastic, that is, the layer 7 has a higher flow resistance than the fabric 8, so that a precise adjustment of the penetration depth "A" of the textile fabric 8 with the carrier 4 forming thermoplastic can be performed.
  • the layer 7 consists in this embodiment of a nonwoven.
  • the textile fabric 8 is thus embedded over the region of the penetration depth A, that is, the penetration depth A characterizes the matrix 9 in which the textile fabric 8 is embedded.
  • the free area 10 of the textile fabric 8 On the side facing away from the carrier 4 of the matrix 9 there is a "free area" 10 of the textile fabric 8, which does not belong to the embedded textileitatingßsente 8.
  • a perforated film or other materials forming a flow resistance can be used as the coating material, for example when penetrating a hardenable mass into the textile Flatness effect a uniformity.
  • a carrier 4 is again covered with a foam 5 on the side facing the interior of a motor vehicle, and a support 4 is covered. closing decorative skin 6 and in this embodiment, not an additional layer 7oder coating side is used, but the textile fabric 8 has a support 4 facing portion 11, which forms a higher flow resistance than the carrier 4 facing away "loose" area 12 with a opposite Region 11 of reduced flow resistance
  • a non-embedded free region 10 of the textile fabric 8 is provided and the region of the coated textile fabric 8 embedded in the matrix of the carrier 4 is marked with 9.
  • due to the barrier effect of e.g. coated textile fabric is more than 50% of the height of the textile fabric 8 perpendicular to the support 4 within the embedded region, and less than 50% of the textile fabric 8 belong to the "free", non-embedded region 10. In an advantageous embodiment, approximately 70 to Of course, a corresponding variation in the ratio of embedded area to free area can be made depending on the application, that is, the force acting on the airbag cover from the expanding airbag and the airbag depending on the weight and size Cover as well as the length of the swivel for the airbag cover.
  • the fabric may also be formed as a fabric, wherein an advantageous adjustment of the free area, which is not embedded, can then take place when the fabric has a sufficient thickness, as is common, for example, for knitted fabrics.
  • the tissue may also be coated as explained above.
  • It can also be a textile fabric, such as tissue used, which was formed into a wrinkled design, so that, for example, the support 4 adjacent fold areas are embedded and facing away from the carrier "pleat heads" lying, that is not embedded, formed ,
  • FIG. 4 in an enlarged view, the hinge portion of an airbag cover is shown, that is, the airbag cover is pivoted in the direction of the arrow toward the vehicle interior.
  • 14 is a predetermined breaking point, which represents a weakening and over which the location of the pivoting movement of the airbag cover 1 is defined.
  • Carrier matrix 4 In this way, a large part of the forces occurring is absorbed over the entire surface by the construtive strain and by the component thickness of the carrier matrix.
  • the region of the textile fabric which is not flown through delaminates into the adjoining support matrix, so that the forces occurring are absorbed over the entire surface by the structural expansion and the embedding in the support matrix and thus consequently permit a swiveling out movement.
  • the remaining forces cause an additional Aufschwen- ken the airbag cover and these remaining forces are first absorbed by the textile extensibility of the textile fabric, ie in particular a knitted fabric and absorbed over the entire surface, so that on the one hand, the airbag cover opens controlled and a Demolition of the same from the surrounding environment is not to be feared.
  • An advantage of the proposed hinge is that a particularly lightweight textile fabric can be used, so that the weight of the hinge can be particularly easy and z. B. a heavy-cost expensive to produce metal hinge is not required. Since that
  • Weight of the hinge can be kept low, the forces are also lower than in a heavier cover for the airbag.
  • a cost-effective production method is also made possible by the proposed hinge for the airbag cover, since the hinge can be carried out already during the production of the airbag cover, since during the manufacturing process of the carrier at the same time the fabric of the hinge in the matrix of the carrier (partially) can be embedded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne une articulation à charnière pour couvercle de coussin gonflable de sécurité comprenant un élément plat textile faisant office de charnière entre le couvercle du coussin gonflable de sécurité et une zone de recouvrement voisine du coussin gonflable de sécurité, par exemple dans l'espace intérieur d'un véhicule automobile, et une zone de l'élément plat textile qui fait face à un support du couvercle de coussin gonflable de sécurité et qui est noyée dans une matrice reliée au support et une zone de l'élément plat textile qui n'est pas noyée dans la matrice.
EP07722076A 2006-03-17 2007-03-19 Articulation à charnière pour couvercle de coussin gonflable de sécurité Withdrawn EP1996434A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006012712 2006-03-17
PCT/DE2007/000516 WO2007110048A1 (fr) 2006-03-17 2007-03-19 Articulation à charnière pour couvercle de coussin gonflable de sécurité

Publications (1)

Publication Number Publication Date
EP1996434A1 true EP1996434A1 (fr) 2008-12-03

Family

ID=38267605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722076A Withdrawn EP1996434A1 (fr) 2006-03-17 2007-03-19 Articulation à charnière pour couvercle de coussin gonflable de sécurité

Country Status (3)

Country Link
US (1) US8157289B2 (fr)
EP (1) EP1996434A1 (fr)
WO (1) WO2007110048A1 (fr)

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DE102007035073A1 (de) * 2007-07-26 2009-02-12 Lisa Dräxlmaier GmbH Gewirke mit Einlegefäden für Airbagklappe
DE102007055016B3 (de) * 2007-11-14 2008-11-27 Faurecia Innenraum Systeme Gmbh Verkleidungsteil mit Airbagabdeckung und Verfahren zum Herstellen eines Verkleidungsteils
DE102008042657B4 (de) 2008-10-07 2011-12-01 Huesker Synthetic Gmbh Textiles Scharnier für Airbagabdeckungen
DE102010047750A1 (de) * 2010-10-08 2012-04-12 F.A. Kümpers GmbH & Co. KG Scharnier mit einer Textilie
DE102012001461A1 (de) 2012-01-25 2013-07-25 K.L.Kaschier- und Laminier GmbH Abdeckung für einen Airbag
PL2749458T3 (pl) 2012-12-28 2015-09-30 Faurecia Innenraum Systeme Gmbh Element wykładzinowy z osłoną poduszki powietrznej i sposób wytwarzania elementu wykładzinowego
US9228383B2 (en) * 2013-04-10 2016-01-05 F. A. Kuempers GmbH & Co. KG Hinge comprising a textile
DE102015001103A1 (de) * 2015-01-30 2016-08-04 K.L. Kaschier- Und Laminier Gmbh Verbundwerkstoff für eine Airbagabdeckung
CN115816736A (zh) * 2018-06-28 2023-03-21 上海延锋金桥汽车饰件系统有限公司 车辆装饰部件
US11840188B2 (en) * 2018-06-28 2023-12-12 Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. Vehicle interior component
CN208774709U (zh) * 2018-09-14 2019-04-23 上海延锋金桥汽车饰件系统有限公司 一种安全气囊门铰链
DE102018216429A1 (de) * 2018-09-26 2020-03-26 Audi Ag Verkleidungselement für eine Säule einer Karosserie eines Kraftfahrzeugs und Kraftfahrzeug mit einem solchen Verkleidungselement
DE102021124189A1 (de) 2021-09-20 2023-03-23 K. L. Kaschier- Und Laminier Gmbh Textiles Flächenelement eines Airbags

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Also Published As

Publication number Publication date
WO2007110048A1 (fr) 2007-10-04
US20090217484A1 (en) 2009-09-03
US8157289B2 (en) 2012-04-17

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