DE4229561C1 - Gas-bag cover burst by explosive charge - has tearing wire running along bursting line and coupled to charge-operated mechanism - Google Patents

Gas-bag cover burst by explosive charge - has tearing wire running along bursting line and coupled to charge-operated mechanism

Info

Publication number
DE4229561C1
DE4229561C1 DE19924229561 DE4229561A DE4229561C1 DE 4229561 C1 DE4229561 C1 DE 4229561C1 DE 19924229561 DE19924229561 DE 19924229561 DE 4229561 A DE4229561 A DE 4229561A DE 4229561 C1 DE4229561 C1 DE 4229561C1
Authority
DE
Germany
Prior art keywords
cover
wire
charge
tear
airbag
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.)
Expired - Fee Related
Application number
DE19924229561
Other languages
German (de)
Inventor
Gerd Stueckle
Georg Seeger
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz 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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Priority to DE19924229561 priority Critical patent/DE4229561C1/en
Application granted granted Critical
Publication of DE4229561C1 publication Critical patent/DE4229561C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B60R2021/21652—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 the tearing being done or assisted by cutters
    • 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
    • B60R2021/21654—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 the tearing being done or assisted by heating or pyrotechnic means

Abstract

The cover is burst open by the charge immediately before the bag is activated. A tearing wire (3) is embedded in the cover (1). It runs along the intended course of the bursting line, and has components locally destroying it. This is coupled to the mechanism operated by the charge (9). The components can consist of bodies (4) fixed to the wire, typically wire loops, and the wire can be attached tangentially to a body (8) rotated by the charge. The bursting wire can be H-shaped, with corresponding auxiliary wires (5) branching off sideways from the main one. USE/ADVANTAGE - Rapid deployment of vehicle safety gas bag during collision.

Description

Die Erfindung betrifft eine Abdeckung für einen Gassack gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a cover for an airbag according to the preamble of claim 1.

Aus der DE 35 45 028 C2 und der US 5,080,393 sind bereits gattungsgemäße Abdeckungen für einen Gassack mit einer Vor­ richtung zur Erleichterung des Aufreißens entlang einer vorbe­ stimmten Sollbruchlinie bekannt. Diese Vorrichtungen umfassen jeweils eine in der Abdeckung eingebettete Sprengschnur, welche in einer Aufprallsituation unmittelbar vor oder zum Zeitpunkt der Aktivie­ rung des Gassackes gezündet wird und mindestens eine deutlich geschwächte Sollbruchstelle in der Gassackabdeckung herstellt. Eine Weiterbildung dieser Vorrichtungen zum pyrotechnischen Aufreißen einer Abdeckung entlang einer Sollbruchstelle ist in der EP 0 408 064 A1 dargestellt. Darin wird neben der direkten Einbettung der Sprengschnur in die Abdeckung deren Umstellung mit einem Rohr vorgeschlagen, wobei durch Austrittsöffnungen in dem Rohr eine Richtwirkung für die Sprengkraft erreicht wird. Dies ermöglicht eine Minimierung der erforderlichen Sprengkraft gegenüber der freien Einbettung der Sprengschnur in die Ab­ deckung.From DE 35 45 028 C2 and US 5,080,393 are already Generic covers for an airbag with a front direction to facilitate tearing along a pass agreed predetermined breaking line. These devices each include one detonating cord embedded in the cover, which in a Impact situation immediately before or at the time of activation tion of the airbag is ignited and at least one clearly weakened predetermined breaking point in the gas bag cover. A further development of these devices for pyrotechnic Tear open a cover along a predetermined breaking point is in of EP 0 408 064 A1. In addition to the direct Embedding the detonating cord in the cover of its changeover proposed with a tube, wherein through outlet openings in a directivity for the explosive force is achieved. This enables the required explosive force to be minimized compared to the free embedding of the detonating cord in the Ab cover.

Um das Gefährdungspotential dieser Einrichtung bezüglich des von ihr ausgehenden Verletzungs- und Brandrisikos in einem ver­ tretbaren Rahmen zu halten, ist es erforderlich, den Querschnitt der Sprengschnur auf ein relativ geringes Maß zu begrenzen, welches jedoch zu einer Verminderung der Zündimpuls­ geschwindigkeit und damit letztlich zu einer nachteiligen Ver­ zögerung der Auslösegeschwindigkeit des Gassacks führt.To the hazard potential of this facility with regard to from her injury and fire risks in a ver to maintain a reasonable frame, it is necessary to  Cross section of the detonating cord to a relatively small extent limit which, however, leads to a reduction in the ignition pulse speed and ultimately an adverse Ver delay in the release speed of the gas bag.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Abdeckung für einen Gassack mit einer nahezu verzögerungsfrei und ohne funktionsbedingte Gefährdungen wirkenden Vorrichtung zur Erleichterung des Aufreißens einer Sollbruchstelle zu schaffen.The invention has for its object a generic Cover for an airbag with an almost instantaneous and without a function-related hazard device to facilitate tearing open a predetermined breaking point create.

Erfindungsgemäß wird die Aufgabe mit den Merk­ malen des Patentanspruches 1 gelöst, wobei die Merkmale der Unteransprüche vorteilhafte Aus- und Weiterbildungen kenn­ zeichnen.According to the task with the Merk paint the claim 1, the characteristics of Advantageous training and further education to draw.

Der erfindungsgemäße, in die Abdeckung eingelassene und mit Reißkörpern oder mit Drahtschlingen besetzte Reißdraht bewirkt bei einem ruckartigen Durchziehen durch die Abdeckung eine lokale Zerstörung bzw. ein Aufreißen dieser Abdeckung, wodurch eine Sollbruchstelle geschaffen wird, die das Durchbrechen des Gassackes wesentlich erleichtert. Erfindungsgemäß wird dieses ruckartige Durchziehen durch das explosionsartige Abbrennen einer mit dem Reißdraht in Verbindung stehenden Treib­ ladung bewirkt.The invention, embedded in the cover and with Tear bodies or tear wire studded with wire loops causes in the event of a jerky pulling through the cover, a local one Destruction or tearing of this cover, which a predetermined breaking point is created, the breakthrough of the Airbag much easier. According to the invention jerky pulling through the explosive burning a driver connected to the pull wire charge causes.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden näher be­ schrieben.An embodiment of the invention is in the drawing is shown schematically and will be described in more detail below wrote.

Die Darstellung zeigt eine mit dem Bezugszeichen 1 bezeichnete Abdeckung für einen Gassack mit der erfindungsgemäßen Vorrich­ tung. The illustration shows a cover designated with the reference numeral 1 for an airbag with the device according to the invention.

Die Abdeckung 1 besteht im wesentlichen aus einem beidseitig mit einem Kunstleder bzw. einer Plastfolie überzogenen Schaum­ stoffmaterial und überdeckt einen in der Darstellung angedeu­ teten Gassack 2.The cover 1 consists essentially of a foam material material covered on both sides with a synthetic leather or a plastic film and covers a gas bag 2 indicated in the illustration.

Aus technologischen Gründen sind in eine derartige Abdeckung 1 nur sehr schwer Sollbruchstellen mit entsprechend geschwächten Wandungsquerschnitten einzuarbeiten, welche ein Gassack im Falle seiner Aktivierung leicht durchbrechen kann. Derartige Sollbruchstellen würden die Abdeckung auch bezüglich ihrer Wi­ derstandskraft gegen die während des normalen Betriebes auf­ tretenden Abstützkräfte, z. B. beim Aufstützen einer Person un­ zulässig schwächen.For technological reasons, it is very difficult to incorporate predetermined breaking points with correspondingly weakened wall cross sections into such a cover 1 , which a gas bag can easily break through if it is activated. Such predetermined breaking points would the cover also with respect to their resistance against the supporting forces occurring during normal operation, for. B. weaken unacceptably when supporting a person.

Erfindungsgemäß ist entlang einer vorgesehenen Durchbruchstelle des Gassacks 2 ein Reißdraht 3 in die Abdeckung 1 eingelassen bzw. bei der Herstellung mit eingeschäumt. Dieser Reißdraht 3 ist mit Reißkörpern 4 oder mit Drahtschlingen besetzt, welche die Abdeckung 1 bei einem ruckartigen Durchziehen des Reiß­ drahtes 3 lokal zerstören bzw. aufreißen.According to the invention, a tear wire 3 is let into the cover 1 along an intended breakthrough point of the gas bag 2 or is foamed in during manufacture. This tear wire 3 is filled with tear bodies 4 or with wire loops which locally destroy or tear open the cover 1 in the event of a jerky pulling of the tear wire 3 .

Darüber hinaus sind an dem geradlinig verlaufenden zentralen Reißdraht 3 seitlich abzweigende Nebenzugdrähte 5 befestigt, wodurch sich eine H-förmige Anordnung der vorgesehenen Soll­ bruchstellen ergibt. Die Eckbereiche dieser Anordnung können durch in die Abdeckung eingeschäumte Drahtführungsbleche 6 stabilisiert sein, wodurch eine ausreichend exakte Führung der Nebenzugdrähte 5 gesichert ist.In addition, side branch wires 5 are attached to the straight central tearing wire 3 , which results in an H-shaped arrangement of the intended breaking points. The corner regions of this arrangement can be stabilized by wire guide plates 6 foamed into the cover, as a result of which a sufficiently precise guidance of the secondary pull wires 5 is ensured.

Die durch diese H-förmige Anordnung gebildeten Flächenbereiche sind durch den Gassack 2 relativ leicht nach außen aufklapp­ bar.The surface areas formed by this H-shaped arrangement are relatively easy to open outwards through the gas bag 2 .

Der zentrale Reißdraht 3 ist mit einer Zugeinrichtung 7 ver­ bunden, die mit einer nicht dargestellten Auslöseeinrichtung des Gassacks 2 gekoppelt ist. Die Zugeinrichtung 7 zieht mit minimalem zeitlichen Vorlauf vor Auslösung des Gassacks 2 den zentralen Reißdraht 3 sowie die Nebenzugdrähte 5 ruckartig durch die Abdeckung 1 und bewirkt damit deren Aufreißen entlang der vorgesehenen H-förmigen Anordnung.The central tear wire 3 is connected to a pulling device 7 , which is coupled to a triggering device, not shown, of the gas bag 2 . The pulling device 7 pulls the central pulling wire 3 and the secondary pulling wires 5 jerkily through the cover 1 with a minimum lead time before the gas bag 2 is triggered and thus causes them to be torn open along the intended H-shaped arrangement.

Zur Erzielung einer optimalen Wirkung der erfindungsgemäßen Einrichtung sollte der Reißdraht 3 durch die Zugeinrichtung 7 mindestes um den Betrag bewegt werden, der dem Abstand jeweils benachbarter Reißkörper 4 bzw. Drahtschlingen zueinander ent­ spricht.To achieve an optimal effect of the device according to the invention, the tear wire 3 should be moved by the pulling device 7 at least by the amount corresponding to the distance between adjacent tear body 4 or wire loops to one another.

In dem dargestellten Ausführungsbeispiel besteht die fahrzeug­ fest angeordnete Zugeinrichtung 7 im wesentlichen aus zwei Treibladungen 9 und einem Drehteil 8, an dem tangential der Reißdraht 3 befestigt ist. Die Treibladungen 9 sind in Kammern 10 angeordnet, deren durchströmbare Ausgänge 11 tangential auf das in dem angeströmten Bereich turbinenradartig ausgebildete Drehteil 8 gerichtet sind. Durch diese Anordnung wird das Dreh­ teil 8 bei Zündung und explosionsartigem Abbrennen der Treib­ ladungen 9 ruckartig um seine Achse gedreht und damit der an dem Drehteil 8 befestigte Reißdraht 3 durch das Schaummaterial der Abdeckung 1 gezogen bzw. gerissen.In the illustrated embodiment, the vehicle-mounted traction device 7 consists essentially of two propellant charges 9 and a rotating part 8 , to which the tear wire 3 is attached tangentially. The propellant charges 9 are arranged in chambers 10 , the flow-through outlets 11 of which are directed tangentially to the rotary part 8, which is designed like a turbine wheel in the flow area. By this arrangement, the rotary part 8 is turned on ignition and explosion-like burning of the propellant charges 9 abruptly about its axis and thus the pull wire 3 attached to the rotating part 8 is pulled or torn through the foam material of the cover 1 .

Darüber hinaus sind weitere von dem beschriebenen Ausführungs­ beispiel abweichende Zugeinrichtungen denkbar. So ist z. B. ein Aufbau ähnlich eines Arbeitszylinders möglich, wobei der Reiß­ draht direkt an der Kolbenstange des Arbeitszylinders befestigt ist und durch eine ruckartige Hubbewegung infolge des explo­ sionsartigen Abbrennens einer Treibladung in dem Arbeitszylin­ der eine entsprechende Reißdrahtbewegung bewirkt wird.In addition, others are of the described embodiment example deviating pulling devices conceivable. So z. B. a Construction similar to a working cylinder possible, with the tear wire attached directly to the piston rod of the working cylinder is and by a jerky lifting movement as a result of the explo sions-like burning of a propellant charge in the working cylinder which causes a corresponding pulling wire movement.

Claims (6)

1. Abdeckung für einen Gassack mit einer Vorrichtung zur Erleichterung des Aufbrechens entlang einer vorgesehenen Soll­ bruchstelle, welcher eine unmittelbar vor der Aktivierung des Gassacks zündbare pyrotechnische Ladung zugeordnet ist, dadurch gekennzeichnet, daß in der Abdeckung (1) mindestens ein entlang der Sollbruch­ stelle verlaufender, mit Elementen zur lokalen Zerstörung der Abdeckung (1) versehener Reißdraht (3) eingebettet ist, welcher mit der als Treibladung (9) ausgebildeten pyrotechnischen La­ dung (9) in Wirkverbindung steht.1. Cover for an airbag with a device for facilitating the break-open along an intended breakpoint, which is assigned an ignitable pyrotechnic charge immediately before activation of the airbag, characterized in that in the cover ( 1 ) at least one running along the breakage point is embedded with elements for local destruction of the cover (1) tear-provided wire (3) which communicates with the designed as a propellant charge (9), pyrotechnic La extension (9) in operative connection. 2. Abdeckung für einen Gassack nach Anspruch 1, dadurch gekennzeichnet, daß die Elemente zur lokalen Zerstörung der Abdeckung (1) aus an dem Reißdraht (3) befestigten Reißkörpern (4) gebildet sind.2. Cover for an airbag according to claim 1, characterized in that the elements for local destruction of the cover ( 1 ) from the tear wire ( 3 ) attached tear bodies ( 4 ) are formed. 3. Abdeckung für einen Gassack nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Elemente zur lokalen Zerstörung der Abdeckung (1) aus an dem Reißdraht (3) befestigten Drahtschlingen gebildet sind. 3. Cover for an airbag according to claim 1 or 2, characterized in that the elements for local destruction of the cover ( 1 ) are formed from wire loops attached to the tear wire ( 3 ). 4. Abdeckung für einen Gassack nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Reißdraht (3) tangential an einem mittels der Treib­ ladung (9) verdrehbaren Drehteil (8) angelenkt ist.4. Cover for an airbag according to one of claims 1 to 3, characterized in that the tear wire ( 3 ) is articulated tangentially to a rotating part ( 8 ) by means of the propellant charge ( 9 ). 5. Abdeckung für einen Gassack nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Sollbruchstelle im wesentlichen H-förmig ausgebildet ist, indem an dem Reißdraht (3) entsprechende seitlich abzwei­ gende Nebenzugdrähte (5) befestigt sind.5. Cover for an airbag according to one of claims 1 to 4, characterized in that the predetermined breaking point is substantially H-shaped by the corresponding pull-off wires ( 5 ) are attached laterally to the tear wire ( 3 ). 6. Abdeckung für einen Gassack nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß an den Umlenkpunkten der Zugdrähte (3, 5) Drahtführungs­ bleche (6) zur Führung der Zugdrähte (3, 5) in die Abdeckung (1) eingearbeitet sind.6. Cover for an airbag according to one of claims 1 to 5, characterized in that at the deflection points of the pull wires ( 3 , 5 ) wire guide plates ( 6 ) for guiding the pull wires ( 3 , 5 ) are incorporated in the cover ( 1 ) .
DE19924229561 1992-09-04 1992-09-04 Gas-bag cover burst by explosive charge - has tearing wire running along bursting line and coupled to charge-operated mechanism Expired - Fee Related DE4229561C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924229561 DE4229561C1 (en) 1992-09-04 1992-09-04 Gas-bag cover burst by explosive charge - has tearing wire running along bursting line and coupled to charge-operated mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924229561 DE4229561C1 (en) 1992-09-04 1992-09-04 Gas-bag cover burst by explosive charge - has tearing wire running along bursting line and coupled to charge-operated mechanism

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DE4229561C1 true DE4229561C1 (en) 1994-02-10

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998010962A1 (en) * 1996-09-13 1998-03-19 The Goodyear Tire And Rubber Company Manufacturing process for concealed opening of supplemental restraint system air bag doors for use in automobile interiors
DE19850688A1 (en) * 1998-11-03 2000-05-04 Bayerische Motoren Werke Ag Decorative surface, especially motor vehicle interior cladding, has ignition track along tearing contour of outlet opening to weaken material of surface when air bag unit is ignited
DE19907742A1 (en) * 1999-02-23 2000-08-24 Volkswagen Ag Airbag passenger restraint device for automobile has resistance heating wire embedded in front fascia cover for restraint device used for rupture of part of latter infront of inflated airbag
DE19912179A1 (en) * 1999-03-18 2000-09-21 Volkswagen Ag Passenger safety device with an airbag for fitting in a motor vehicle incorporates a side outlet opening locked by a side covering for an airbag recess able to move into a release position.
WO2000061403A1 (en) 1999-04-08 2000-10-19 Magna Eybl Gmbh Cover for an airbag module
DE102010062606A1 (en) * 2010-12-08 2012-06-14 Lisa Dräxlmaier GmbH Semi-finished products for use in airbag cover, has haptic layer and decorative layer, where two parallel extending haptic surface layers have knitted fabric and knitted or woven fabric layer
DE102011117893B3 (en) * 2011-10-31 2013-03-14 Faurecia Innenraum Systeme Gmbh Method for producing airbag cover for instrument panel of e.g. car, involves separating wire from first and second mats and portion of second mat corresponding to shape of the wire is cut through
DE102012209610A1 (en) * 2012-06-07 2013-12-12 Faurecia Innenraum Systeme Gmbh Airbag covering unit for use in liner parts of vehicles, has decorative layer provided with activatable element, airbag flap fixed with unfoldable airbag, where unfoldable airbag is formed with opening
DE102014226987A1 (en) * 2014-12-23 2016-06-23 Faurecia Innenraum Systeme Gmbh Airbag cover and method of making an airbag cover

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545028C2 (en) * 1985-12-19 1988-11-24 Audi Ag, 8070 Ingolstadt, De
EP0408064A1 (en) * 1989-07-14 1991-01-16 Tip Engineering Group, Inc. Arrangement for forming an air bag deployment opening
US5080393A (en) * 1989-01-30 1992-01-14 Tip Engineering Group, Inc. Method and apparatus for forming an air bag deployment opening

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545028C2 (en) * 1985-12-19 1988-11-24 Audi Ag, 8070 Ingolstadt, De
US5080393A (en) * 1989-01-30 1992-01-14 Tip Engineering Group, Inc. Method and apparatus for forming an air bag deployment opening
EP0408064A1 (en) * 1989-07-14 1991-01-16 Tip Engineering Group, Inc. Arrangement for forming an air bag deployment opening

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998010962A1 (en) * 1996-09-13 1998-03-19 The Goodyear Tire And Rubber Company Manufacturing process for concealed opening of supplemental restraint system air bag doors for use in automobile interiors
DE19850688A1 (en) * 1998-11-03 2000-05-04 Bayerische Motoren Werke Ag Decorative surface, especially motor vehicle interior cladding, has ignition track along tearing contour of outlet opening to weaken material of surface when air bag unit is ignited
DE19907742A1 (en) * 1999-02-23 2000-08-24 Volkswagen Ag Airbag passenger restraint device for automobile has resistance heating wire embedded in front fascia cover for restraint device used for rupture of part of latter infront of inflated airbag
DE19912179A1 (en) * 1999-03-18 2000-09-21 Volkswagen Ag Passenger safety device with an airbag for fitting in a motor vehicle incorporates a side outlet opening locked by a side covering for an airbag recess able to move into a release position.
WO2000061403A1 (en) 1999-04-08 2000-10-19 Magna Eybl Gmbh Cover for an airbag module
DE102010062606A1 (en) * 2010-12-08 2012-06-14 Lisa Dräxlmaier GmbH Semi-finished products for use in airbag cover, has haptic layer and decorative layer, where two parallel extending haptic surface layers have knitted fabric and knitted or woven fabric layer
DE102010062606B4 (en) * 2010-12-08 2013-09-19 Lisa Dräxlmaier GmbH Crack-optimized airbag cover
DE102011117893B3 (en) * 2011-10-31 2013-03-14 Faurecia Innenraum Systeme Gmbh Method for producing airbag cover for instrument panel of e.g. car, involves separating wire from first and second mats and portion of second mat corresponding to shape of the wire is cut through
DE102012209610A1 (en) * 2012-06-07 2013-12-12 Faurecia Innenraum Systeme Gmbh Airbag covering unit for use in liner parts of vehicles, has decorative layer provided with activatable element, airbag flap fixed with unfoldable airbag, where unfoldable airbag is formed with opening
DE102014226987A1 (en) * 2014-12-23 2016-06-23 Faurecia Innenraum Systeme Gmbh Airbag cover and method of making an airbag cover

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