DE19742506A1 - Vehicle airbag opening and unfolding mechanism - Google Patents

Vehicle airbag opening and unfolding mechanism

Info

Publication number
DE19742506A1
DE19742506A1 DE1997142506 DE19742506A DE19742506A1 DE 19742506 A1 DE19742506 A1 DE 19742506A1 DE 1997142506 DE1997142506 DE 1997142506 DE 19742506 A DE19742506 A DE 19742506A DE 19742506 A1 DE19742506 A1 DE 19742506A1
Authority
DE
Germany
Prior art keywords
airbag
cover flaps
opening
openings
steering wheel
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Withdrawn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
DE1997142506
Other languages
German (de)
Inventor
Gerhard Dipl Ing Lutter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1997142506 priority Critical patent/DE19742506A1/en
Publication of DE19742506A1 publication Critical patent/DE19742506A1/en
Withdrawn legal-status Critical Current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
    • B60R21/21656—Steering wheel covers or similar cup-shaped covers
    • 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
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/261—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means other than bag structure to diffuse or guide inflation fluid
    • 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
    • B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory
    • 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
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • B60R21/045—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings associated with the instrument panel or dashboard
    • 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
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • B60R21/05—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings associated with the steering wheel, steering hand lever or steering column
    • 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
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

The airbag opening and unfolding mechanism has several cover flaps. These open at different times after the release of the airbag. This is achieved by differences in the rigidity (firmness) of the tearing seams and tearing edges (5) causing them to open at different times under the pressure of the outflowing gas. The cover flaps should preferably be between the spokes (9) of the steering wheel. The idea can also be adapted for passenger and side airbags.

Description

Anwendung der ErfindungApplication of the invention

Die Erfindung kann z. B. im Bereich der Fahrzeugsicherheit im Bereich Airbags etc. Anwendung finden.The invention can e.g. B. in the field of vehicle safety in the area of airbags etc. Find application.

Charakteristik der bekannten technischen LösungenCharacteristic of the known technical solutions

  • - Airbag- airbag
  • - Airbag mit integriertem Prallpolster- Airbag with integrated impact pad
  • - Abdeckkappen für Airbags- Caps for airbags
  • - Airbagentfaltung- Airbag deployment
  • - Aufreißkanten- tear edges
  • - Deformationsmaterialien- Deformation materials
Ziel der ErfindungAim of the invention

Ziel der Erfindung ist es, den Airbag so aufblasen zu lassen, daß direkt vor dem Airbag befindliche Körperteile des Insassen durch ein möglichst diffuses und dezentrales Aufblasverhalten des Airbags vor zu hoher Energieeinleitung geschützt und damit die Schutzwirkung bekannter Systeme übertroffen wird.The aim of the invention is to inflate the airbag so that directly in front of the airbag body parts of the occupant through a diffuse and decentralized Inflation behavior of the airbag protected against excessive energy input and thus the Protective effect of known systems is exceeded.

Wesen der ErfindungEssence of the invention

Ausgehend vom Ziel der Erfindung besteht die Aufgabe darin, das Aufblasen des Airbags durch die darüber befindliche Abdeckklappe und eine Öffnungsklappen-orientiente Faltung des Airbaggewebes zu steuern und damit die sogenannte Out-of-Position-Problematik (OoP) zu entschärfen und vor Armverletzungen durch den herausschießenden Airbag, wie dies heute übliche Airbagsysteme verursachen können, zu schützen. Based on the aim of the invention, the task is to inflate the airbag thanks to the cover flap above and an opening flap-oriented fold control of the airbag fabric and thus the so-called out-of-position problem (OoP) to defuse and prevent arm injuries from the airbag shooting out like this airbag systems common today can protect.  

Beschreibung der ErfindungDescription of the invention

Faltung und Klappenöffnungsmechanismus heutiger Airbags rufen eine zum Insassen hin gerichtetes Austreten des Airbaggewebes aus dem Airbagmodul (1) hervor.The folding and flap opening mechanism of today's airbags cause the airbag fabric to emerge from the airbag module ( 1 ) towards the occupant.

Kurz nach der Zündung des Gasgenerators kommt es zum sogenannten "Punch-Out"-Effekt, bei dem das Airbaggewebe (6) mit hoher Geschwindigkeit auf den Insassen trifft. Befindet sich der Insasse in einer Out-of-Position-Situation (OoP-Situation)- also außerhalb der im Labor geprüften Normalposition - kann es zu hohen und überkritischen Belastungen des Kopfes/Halses und des Thorax kommen. Zusätzlich kann es im Fahrbetrieb je nach Stellung der Arme zu Frakturen der Unterarme bei einem Unfall kommen.Shortly after the gas generator is ignited, the so-called "punch-out" effect occurs, in which the airbag fabric ( 6 ) hits the occupant at high speed. If the occupant is in an out-of-position (OoP) situation - i.e. outside of the normal position tested in the laboratory - high and supercritical loads on the head / neck and thorax can occur. In addition, depending on the position of the arms, fractures of the forearms can occur in the event of an accident.

Die hier behandelte Faltung in Verbindung mit dem neuartigen Klappenöffnungs­ mechanismus bewirkt, daß in einer OoP-Situation des Insassen das dicht gepackte Airbaggewebepaket nicht durch eine zentrale Klappenöffnung auf den Insassen trifft. Durch die unterschiedlich steife Gestaltung der Klappenaufreißkanten (siehe Fig. 1) werden bei einer Airbagauslösung zunächst die schwächer dimensionierten Aufreißkanten (4) - vorzugsweise am Umfang der Airbagabdeckung positioniert - geöffnet, so daß durch die Öffnungsklappen (3) das Airbaggewebe (6) dezentral aus dem Airbagmodul (1) entweichen kann (siehe Fig. 2). Dabei gewährleisten die Abblasöffnungen (7) des als energieabsorbierendes Deformationselement ausgeführten Diffusors (8), daß sich das Airbaggewebe (6) in der Ebene des Lenkradkranzes (10) oder auch vor dem Lenkradkranz (in Fahrtrichtung) entfaltet. Unterschiedlich groß ausgeführte Abblasöffnungen (7) im energieabsorbierenden Diffusor unterstützen diesen Effekt noch. Die Lenkradspeichen (9) können dabei so konzipiert sein, daß sie als Entfaltungsleithilfen für das Airbaggewebe dienen.The folding dealt with here in connection with the novel flap opening mechanism causes the tightly packed airbag fabric package not to hit the occupant through a central flap opening in an OoP situation of the occupant. Due to the different stiffness of the flap tear-open edges (see Fig. 1), the weakly dimensioned tear-open edges ( 4 ) - preferably positioned on the circumference of the airbag cover - are opened when the airbag is deployed, so that the airbag fabric ( 6 ) is decentralized through the opening flaps ( 3 ) the airbag module ( 1 ) can escape (see Fig. 2). The blow-off openings ( 7 ) of the diffuser ( 8 ) designed as an energy-absorbing deformation element ensure that the airbag fabric ( 6 ) deploys in the plane of the steering wheel rim ( 10 ) or in front of the steering wheel rim (in the direction of travel). Blow-off openings ( 7 ) of different sizes in the energy-absorbing diffuser further support this effect. The steering wheel spokes ( 9 ) can be designed so that they serve as deployment guides for the airbag fabric.

Nachdem die Klappe(n) (3) geöffnet sind, öffnen sich bei weiter steigendem Modulinnendruck auch die stärker dimensionierte(n) Aufreißkante(n) (5) und gewährleisten somit das vollständige Öffnen der Klappe(n) (2). Das bereits ausgebreitete Airbaggewebe (6) kann sich nach dem Aufklappen der Klappe(n) (2) vollständig aufblasen und der Airbag nimmt seine endgültige Form an (siehe Fig. 3).After the flap (s) ( 3 ) are opened, the more large tear-open edge (s) ( 5 ) also open as the internal pressure of the module continues to increase, thus ensuring that the flap (s) ( 2 ) is fully opened. The already spread airbag fabric ( 6 ) can inflate completely after opening the flap (s) ( 2 ) and the airbag takes on its final shape (see Fig. 3).

Die Stufung des Airbag-Entfaltungsvorganges läßt sich in Abhängigkeit der Anzahl und der Größe der Öffnungsklappen variieren. Das gestufte Aufreißkraftniveau für die Öffnungsklappen gewährleistet ein sequentielles Entfalten und Aufblasen des Airbags. Trotz der zeitlichen Stufung ist die vollständige Entfaltung des Airbags für die "In-Position"- Situation (Airbag-Auslegungsposition) des Insassen gewährleistet.The airbag deployment process can be graded depending on the number and the The size of the opening flaps vary. The tiered tear force level for the Opening flaps ensure a sequential deployment and inflation of the airbag. In spite of the gradation in time is the complete deployment of the airbag for the "in position" - Situation (airbag design position) of the occupant guaranteed.

Durch das zeitversetzte Öffnen der Klappen (2, 3) - gesteuert durch den Modul-Innendruck - wird die kinetische Energie des Airbaggewebes (6) durch die Anzahl, Größe und Richtung der Abblasöffnungen (Geometrie des Diffusors) richtungsverteilt, wodurch die Masse des Airbaggewebes nach dem Öffnen der Klappen (4) bereits verteilt ist, so daß die Impulsübertragung des Airbaggewebes an den OoP-befindlichen Insassen flächenhaft verteilt stattfindet.Due to the time-delayed opening of the flaps ( 2 , 3 ) - controlled by the internal pressure of the module - the kinetic energy of the airbag fabric ( 6 ) is directionally distributed by the number, size and direction of the blow-off openings (geometry of the diffuser), causing the mass of the airbag fabric to decrease the opening of the flaps ( 4 ) is already distributed, so that the impulse transmission of the airbag fabric to the occupants in the OoP takes place over a wide area.

Der oben beschriebene Airbagentfaltungs- und Klappenöffnungsmechanismus läßt sich auch auf ein Beifahrerairbagmodul (siehe Fig. 4) und auf ein Seitenairbagmodul (siehe Fig. 5) anwenden.The airbag deployment and flap opening mechanism described above can also be applied to a passenger airbag module (see Fig. 4) and a side airbag module (see Fig. 5).

Für den Beifahrerairbag gewährleistet das dezentrale Airbagentfaltungsverhalten eine deutliche Verringerung des Energieeintrages in den Insassen z. B. bei rückwärtsgerichteten Kinderrückhaltesystemen oder in speziellen OoP-Situationen.For the front passenger airbag, the decentralized airbag deployment behavior ensures significant reduction in energy input in the occupants z. B. in reverse Child restraint systems or in special OoP situations.

Beim Seitenairbag lassen sich durch das gestufte Kraftniveau der Klappenaufreißkanten bzw. durch das zeitversetzte Öffnen der Klappen die Einsatzzeiten für den Kopf- und den Thoraxteil z. B. bei kombinierten Kopf-Thorax-Airbags darstellen.With the side airbag, the stepped force level of the flap tear edges allows or by the delayed opening of the flaps the operating times for the head and the Thoracic part z. B. in combined head-thorax airbags.

Beschreibung der FigurenDescription of the figures

Fig. 1 Schematische Darstellung eines Lenkrades, Fig. 1 shows a schematic representation of a steering wheel,

Fig. 2 Schematische Darstellung eines Lenkrades mit teilgeöffneten Klappen, Figure 2 Schematic representation. A steering wheel with partially opened flaps,

Fig. 3 Schematische Darstellung eines Lenkrades mit vollständig geöffneten Klappen, Fig. 3 shows a schematic representation of a steering wheel with fully opened flaps,

Fig. 4 Schematische Darstellung eines Beifahrerairbags, Fig. 4 shows a schematic view of a passenger airbag,

Fig. 5 Schematische Darstellung eines Seitenairbags. Fig. 5 Schematic representation of a side airbag.

BezugszeichenlisteReference list

11

Airbagmodul
Airbag module

22nd

große Öffnungsklappe
large opening flap

33rd

kleine Öffnungsklappe
small opening flap

44th

schwache Aufreißkante
weak tear-off edge

55

steife Aufreißkante
stiff tear-open edge

66

Airbaggewebe
Airbag fabric

77

Abblasöffnungen
Blow-off openings

88th

energieabsorbierender Diffusor
energy absorbing diffuser

99

Lenkradspeichen
Steering wheel spokes

1010th

Lenkradkranz
Steering wheel rim

Claims (1)

Der Airbagöffnungs- und -entfaltungsmechanismus ist dadurch gekennzeichnet,
  • - daß es mehrere Abdeckklappen gibt, wovon sich eine oder mehrere zu unterschiedliche Zeitpunkten nach der Airbag-Auslösung durch eine oder mehrere unterschiedliche steife (feste) Reißnähte und Reißkanten unter dem Druck der ausströmenden Gase öffnen,
  • - daß die Abdecklappen sich vorzugsweise zwischen den Speichen des Lenkrades befinden,
  • - daß dieser Öffnungs- und -entfaltungsmechanismus für das Lenkradairbagsystem wie auch für jeden anderen Airbag z. B. den Beifahrerairbag und Seitenairbag anwendbar ist,
  • - daß dieser Klappmechanismus auch mit einem Airbag mit integriertem energieabsorbierenden Deformationselement (Prallpolster) kombiniert wird und die in diesem Element integrierten Auslaßöffnungen zur gezielten Aufblasung des Airbags verwendet werden,
  • - daß sich die Öffnungen des Deformationselementes (Prallpolster) direkt hinter den Abdeckklappen befinden,
  • - daß zwischen den Öffnungen des Deformationselementes (Prallpolster) und den Abdeckklappen nur wenige Airbaggewebefalten liegen,
  • - daß der größte Teil des Airbaggewebes örtlich unterhalb oder neben den Ausblasöffnungen des Deformationselementes (Prallpolster) liegt,
  • - und daß die gesamte Faltung dezentral ausgeführt ist.
The airbag opening and deployment mechanism is characterized by
  • that there are several cover flaps, one or more of which open at different times after the airbag has been triggered by one or more different rigid (firm) tear seams and tear edges under the pressure of the escaping gases,
  • - that the cover flaps are preferably located between the spokes of the steering wheel,
  • - That this opening and deployment mechanism for the steering wheel airbag system as well as for any other airbag z. B. the front passenger airbag and side airbag is applicable,
  • that this folding mechanism is also combined with an airbag with an integrated energy-absorbing deformation element (impact cushion) and the outlet openings integrated in this element are used for the targeted inflation of the airbag,
  • - that the openings of the deformation element (impact pad) are located directly behind the cover flaps,
  • - that there are only a few airbag fabric folds between the openings of the deformation element (impact cushion) and the cover flaps,
  • that most of the airbag fabric is located locally below or next to the blow-out openings of the deformation element (impact cushion),
  • - And that the entire folding is decentralized.
DE1997142506 1997-09-26 1997-09-26 Vehicle airbag opening and unfolding mechanism Withdrawn DE19742506A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997142506 DE19742506A1 (en) 1997-09-26 1997-09-26 Vehicle airbag opening and unfolding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997142506 DE19742506A1 (en) 1997-09-26 1997-09-26 Vehicle airbag opening and unfolding mechanism

Publications (1)

Publication Number Publication Date
DE19742506A1 true DE19742506A1 (en) 1999-04-01

Family

ID=7843706

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997142506 Withdrawn DE19742506A1 (en) 1997-09-26 1997-09-26 Vehicle airbag opening and unfolding mechanism

Country Status (1)

Country Link
DE (1) DE19742506A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20009378U1 (en) 2000-05-25 2000-09-28 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Cover for an airbag module
WO2000074981A1 (en) * 1999-06-08 2000-12-14 Takata-Petri Ag Airbag module for steering wheels
DE19951029A1 (en) * 1999-09-17 2001-03-22 Volkswagen Ag Airbag device on a steering wheel of a vehicle
WO2001021450A1 (en) * 1999-09-17 2001-03-29 Volkswagen Aktiengesellschaft Airbag system in a steering wheel of a motor vehicle
DE10130715A1 (en) * 2001-06-26 2002-12-19 Breed Automotive Tech Cover for airbag module for passenger area of motor vehicles has parallel breaking lines forming two rows of opposite offset flaps
US6550804B2 (en) * 2001-02-23 2003-04-22 Breed Automotive Technology, Inc. Driver side air bag module with annular air bag
EP1260418A3 (en) * 2001-05-22 2003-08-20 Trw Vehicle Safety Systems Inc. Dual seam air bag module cover and method
US6863301B2 (en) 2001-02-23 2005-03-08 Key Safety Systems, Inc. Driver side air bag module with annular air bag and centrally disposed control module
US6942246B2 (en) * 2000-08-30 2005-09-13 Audi Ag Passenger protection device in a motor vehicle with an airbag module
EP1710132A1 (en) * 2004-01-30 2006-10-11 Ashimori Industry Co., Ltd. Air bag device
DE102006049288A1 (en) * 2006-10-19 2008-04-30 GM Global Technology Operations, Inc., Detroit Airbag module cover, has main flap connected with cover by strap hinges, which partially roll themselves around transverse axis during opening of airbag and form rolling hinge, where hinges are connected with cover along part of hinge line
DE102013011579A1 (en) * 2013-07-11 2015-01-15 Audi Ag Vehicle steering wheel with an airbag unit
DE10361648B4 (en) * 2003-01-07 2016-11-24 General Motors Corp. Driver airbag module with flexible shaping and method for its production

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000074981A1 (en) * 1999-06-08 2000-12-14 Takata-Petri Ag Airbag module for steering wheels
DE19951029A1 (en) * 1999-09-17 2001-03-22 Volkswagen Ag Airbag device on a steering wheel of a vehicle
WO2001021450A1 (en) * 1999-09-17 2001-03-29 Volkswagen Aktiengesellschaft Airbag system in a steering wheel of a motor vehicle
DE20009378U1 (en) 2000-05-25 2000-09-28 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Cover for an airbag module
US6942246B2 (en) * 2000-08-30 2005-09-13 Audi Ag Passenger protection device in a motor vehicle with an airbag module
US7407183B2 (en) 2001-02-23 2008-08-05 Key Safety Systems, Inc Driver side air bag module with annular air bag and centrally disposed control module
US6863301B2 (en) 2001-02-23 2005-03-08 Key Safety Systems, Inc. Driver side air bag module with annular air bag and centrally disposed control module
US6550804B2 (en) * 2001-02-23 2003-04-22 Breed Automotive Technology, Inc. Driver side air bag module with annular air bag
EP1260418A3 (en) * 2001-05-22 2003-08-20 Trw Vehicle Safety Systems Inc. Dual seam air bag module cover and method
US6692018B2 (en) 2001-05-22 2004-02-17 Trw Vehicle Safety Systems Inc. Dual seam air bag module cover and method
DE10130715A1 (en) * 2001-06-26 2002-12-19 Breed Automotive Tech Cover for airbag module for passenger area of motor vehicles has parallel breaking lines forming two rows of opposite offset flaps
DE10361648B4 (en) * 2003-01-07 2016-11-24 General Motors Corp. Driver airbag module with flexible shaping and method for its production
EP1710132A1 (en) * 2004-01-30 2006-10-11 Ashimori Industry Co., Ltd. Air bag device
EP1710132B1 (en) * 2004-01-30 2013-04-17 Ashimori Industry Co., Ltd. Air bag device
DE102006049288A1 (en) * 2006-10-19 2008-04-30 GM Global Technology Operations, Inc., Detroit Airbag module cover, has main flap connected with cover by strap hinges, which partially roll themselves around transverse axis during opening of airbag and form rolling hinge, where hinges are connected with cover along part of hinge line
DE102013011579A1 (en) * 2013-07-11 2015-01-15 Audi Ag Vehicle steering wheel with an airbag unit

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