DE3604843A1 - Gas generator - Google Patents

Gas generator

Info

Publication number
DE3604843A1
DE3604843A1 DE19863604843 DE3604843A DE3604843A1 DE 3604843 A1 DE3604843 A1 DE 3604843A1 DE 19863604843 DE19863604843 DE 19863604843 DE 3604843 A DE3604843 A DE 3604843A DE 3604843 A1 DE3604843 A1 DE 3604843A1
Authority
DE
Germany
Prior art keywords
gas
gas generator
ring
outflow openings
generator
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Withdrawn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
DE19863604843
Other languages
German (de)
Inventor
Karl Dipl Ing Peitsmeier
Helmut Ing Grad Patzelt
Wolfgang Dipl Ing Russ
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
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 filed Critical Daimler Benz AG
Priority to DE19863604843 priority Critical patent/DE3604843A1/en
Publication of DE3604843A1 publication Critical patent/DE3604843A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/217Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26Inflatable 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
    • B60R21/261Inflatable 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

Landscapes

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

Abstract

The application relates to a gas generator with radial outflow apertures for inflatable air bags which are used to protect the occupants of motor vehicles. In order to ensure trouble-free opening of a padded cover arranged above the air bag unit, provision has been made according to the invention for arrangement, some distance in front of the outflow apertures, of a deflection sheet for deflecting the outflowing gases in an essentially axial direction.

Description

Die Erfindung betrifft einen Gasgenerator mit radialen Abströmöffnungen für aufblasbare, dem Schutz der In­ sassen von Kraftwagen dienende Gaskissen.The invention relates to a gas generator with radial Discharge openings for inflatable, protecting the In sat gas cushions from motor vehicles.

Die Anordnung radialer Abströmöffnungen ist bei noch nicht montiertem Generator insofern von Vorteil, als bei einer Fehlauslösung des Treibsatzes praktisch keine axiale Komponente des ausströmenden Gases auftritt, so daß der Generator in diesem Falle nicht als gefähr­ liches Wurfstück wirken kann.The arrangement of radial outflow openings is still at non-assembled generator is advantageous in that practically none if the propellant is triggered incorrectly axial component of the outflowing gas occurs, so that the generator is not considered dangerous in this case can throw.

Beim Auslösen des eingebauten Generators ergeben sich durch eine solche Konstruktion jedoch die folgenden Nach­ teile.When the built-in generator is triggered by such a construction, however, the following after parts.

Die ganze Gaskisseneinheit ist im Fahrzeug üblicherweise durch eine Polsterplatte abgedeckt, die mittig verlaufende Sollbruchlinien als Aufreißkanten aufweist, die durch das sich entfaltende Gaskissen zerstört werden. Bei über­ wiegend radialem Gasaustritt werden diese Aufreißkanten aber nur ungenügend beaufschlagt, so daß an ungewollten Stellen der Polsterplatte unkontrollierbare Anrisse ent­ stehen, die u.U. bis zu einem unerwünschten Ablösen von Polsterfetzen führen können.The entire gas cushion unit is common in the vehicle covered by a cushion plate, the one in the middle Has predetermined breaking lines as tear edges, which by the unfolding gas cushions are destroyed. At over these tear edges become predominantly radial gas outlet but insufficiently applied, so that unwanted  Uncontrollable cracks appear on the pad standing, which may to an undesirable detachment of scraps of upholstery.

Der vorliegenden Erfindung lag daher die Aufgabe zugrunde, hier Abhilfe zu schaffen und trotz der radialen Abström­ öffnungen des Gasgenerators ein gezieltes Öffnen der Polsterabdeckung ohne Gefahr eines Ablösens von Teilen der Abdeckung sicherzustellen.The present invention was therefore based on the object to remedy this and despite the radial outflow openings of the gas generator a targeted opening of the Upholstery cover without risk of parts coming off the cover.

Dies wird bei einem gattungsgemäßen Gasgenerator erfindungs­ gemäß dadurch erreicht, daß im Abstand vor den Abström­ öffnungen ein Prallblech zum im wesentlichen axialen Ablenken der ausströmenden Gase angeordnet ist.This is fiction, in a generic gas generator according to achieved in that the distance before the outflow openings a baffle to the essentially axial Deflecting the escaping gases is arranged.

Der Gegenstand der Erfindung soll im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbei­ spieles näher erläutert werden.The subject matter of the invention will be described in the following of an embodiment shown in the drawing game will be explained in more detail.

In der Zeichnung zeigen:The drawing shows:

Fig. 1 einen Vertikalschnitt durch eine im Bereich eines nicht dargestellten Lenkrades eines Kraft­ wagens eingebaute Gaskisseneinheit, und Fig. 1 shows a vertical section through a gas cushion unit installed in the area of a steering wheel, not shown, of a motor vehicle, and

Fig. 2 in größerem Maßstab eine Einzelheit aus Fig. 1. FIG. 2 shows a detail from FIG. 1 on a larger scale.

Ein rotationssymmetrischer Gasgenerator 1 mit radialen Abströmöffnungen 2 ist über Niete 3 bzw. Schrauben 4 an einem Generatorträger 5 befestigt. Der Generatorträger 5 bildet den Gasgenerator 1 umgebende Taschen 6 zur Auf­ nahme nicht dargestellter Faltlagen eines Gaskissens 7, das durch einen gleichfalls durch die Niete 3 und Schrauben 4 beaufschlagten Ring 8 befestigt ist.A rotationally symmetrical gas generator 1 with radial outflow openings 2 is fastened to a generator support 5 via rivets 3 or screws 4 . The generator support 5 forms the gas generator 1 surrounding pockets 6 for taking on not shown folded positions of a gas cushion 7 , which is fastened by a ring 8 also acted upon by the rivet 3 and screws 4 .

Auf den Generatorträger 5 ist eine Polsterplatte 9 auf­ geclipst, die Sollbruchlinien 10 aufweist, die durch das sich entfaltende Gaskissen 7 aufgerissen werden und ein Austreten des Gaskissens 7 gestatten.A cushion plate 9 is clipped onto the generator support 5 , which has predetermined breaking lines 10 , which are torn open by the gas cushion 7 that unfolds and allow the gas cushion 7 to emerge.

Um ein mittiges Beaufschlagen der Unterseite der Polster­ platte 9 durch das aus den radialen Abströmöffnungen 2 ausströmende Gas sicherzustellen, ist im Abstand vor den Abströmöffnungen 2 ein Prallblech angeordnet, das von einem abgewinkelten Schenkel 11 des Ringes 8 gebildet wird. Der Strömungsverlauf des austretenden Gases ist in Fig. 2 der Zeichnung durch Pfeile 12 angedeutet.About a central applying the underside of the cushion plate 9 ensure by the flowing out of the radial outflow openings 2 gas, at a distance in front of the discharge openings 2, a baffle plate is arranged, which is formed by an angled leg 11 of the ring. 8 The flow pattern of the escaping gas is indicated by arrows 12 in FIG. 2 of the drawing.

Es wäre auch denkbar, das Prallblech durch einen Schenkel eines separaten Winkelringes zu bilden, der auf den das Gaskissen haltenden Ring aufgesetzt und mit diesem ver­ bunden ist.It would also be conceivable to pass the baffle through one leg to form a separate angle ring, which on the Gas ring holding ring placed and ver with this is bound.

Claims (3)

1. Gasgenerator mit radialen Abströmöffnungen für auf­ blasbare, dem Schutz der Insassen von Kraftwagen dienende Gaskissen, dadurch gekennzeichnet, daß im Abstand vor den Abströmöffnungen (2) ein Prall­ blech zum im wesentlichen axialen Ablenken der aus­ strömenden Gase angeordnet ist.1. Gas generator with radial outflow openings for gas cushions serving to protect the occupants of motor vehicles, characterized in that a baffle plate is arranged at a distance from the outflow openings ( 2 ) for essentially axially deflecting the gases flowing out. 2. Gasgenerator nach Anspruch 1, dadurch gekennzeichnet, daß das Prallblech von einem verlängerten Schenkel (11) eines dem Halten des Gaskissens (7) dienenden Ringes (8) gebildet wird.2. Gas generator according to claim 1, characterized in that the baffle plate from an elongated leg ( 11 ) of a holding the gas cushion ( 7 ) serving ring ( 8 ) is formed. 3. Gasgenerator nach Anspruch 1, dadurch gekennzeichnet, daß das Prallblech von einem Schenkel eines Winkelringes gebildet wird, der auf einen dem Halten des Gaskissens dienenden Ring aufgesetzt und mit diesem verbunden ist.3. Gas generator according to claim 1, characterized, that the baffle from one leg of an angle ring formed on one holding the gas cushion serving ring is attached and connected to this.
DE19863604843 1986-02-15 1986-02-15 Gas generator Withdrawn DE3604843A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863604843 DE3604843A1 (en) 1986-02-15 1986-02-15 Gas generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863604843 DE3604843A1 (en) 1986-02-15 1986-02-15 Gas generator

Publications (1)

Publication Number Publication Date
DE3604843A1 true DE3604843A1 (en) 1987-08-27

Family

ID=6294182

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863604843 Withdrawn DE3604843A1 (en) 1986-02-15 1986-02-15 Gas generator

Country Status (1)

Country Link
DE (1) DE3604843A1 (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830401A (en) * 1987-02-05 1989-05-16 Honda Giken Kogyo Kabushiki Kaisha Air bag assembly for restraining vehicle occupant
DE3900931A1 (en) * 1988-01-19 1989-07-27 Talley Automative Products Inc PASSIVE RESTRAINT SYSTEM
US4902036A (en) * 1988-01-19 1990-02-20 Talley Automotive Products, Inc. Deflector ring for use with inflators with passive restraint devices
FR2636898A1 (en) * 1988-03-29 1990-03-30 Takata Corp
EP0376566A1 (en) * 1988-12-27 1990-07-04 Talley Automotive Products, Inc. Aspirating/venting air bag module assembly
EP0376564A1 (en) * 1988-12-27 1990-07-04 Talley Automotive Products, Inc. Airbag module and method of making same
FR2662411A1 (en) * 1990-05-24 1991-11-29 Takata Corp PNEUMATIC CUSHION DEVICE.
DE4217956A1 (en) * 1991-07-16 1993-01-21 Daimler Benz Ag Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely
US5193846A (en) * 1991-09-30 1993-03-16 Morton International, Inc. Air bag clamping device
US5398967A (en) * 1993-08-18 1995-03-21 Precision Engineering Co. Air bag inflator
EP0788939A1 (en) * 1996-02-06 1997-08-13 Morton International, Inc. Hybrid inflator with integral diffuser
DE29802731U1 (en) * 1998-02-17 1998-06-10 Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf Airbag module
US5836608A (en) * 1996-12-11 1998-11-17 Morton International, Inc. Airbag deflection mount
US5860672A (en) * 1996-11-25 1999-01-19 Morton International, Inc. Airbag baffle mount
US6149192A (en) * 1998-08-11 2000-11-21 Trw Inc. Inflator having gas deflector flanges
US6155599A (en) * 1998-08-11 2000-12-05 Trw Vehicle Safety Systems Inc. Retaining ring with gas diffuser
US6206417B1 (en) 1998-05-08 2001-03-27 Autoliv Asp, Inc. Air bag inflator exit gas dispersion features
EP1114758A1 (en) * 2000-01-05 2001-07-11 Delphi Automotive Systems Sungwoo Co., Ltd. Retainer ring having air deflector and airbag mounting structure using the same
EP0983914A3 (en) * 1998-09-04 2004-01-14 TRW Automotive Safety Systems GmbH & Co. KG Means for fastening a gas generator in an airbag module
WO2012095137A1 (en) * 2011-01-12 2012-07-19 Daimler Ag Airbag, in particular for a motor vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330194B2 (en) * 1973-06-14 1977-11-17 Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH, 8261 Aschau GAS SUPPLY UNIT OF AN IMPACT PROTECTION DEVICE FOR MOTOR VEHICLE occupants
DE2141405B2 (en) * 1970-09-08 1979-08-23 Nissan Motor Compressed gas supply unit of a gas bag impact protection device
GB2096410A (en) * 1981-02-13 1982-10-13 Honda Motor Co Ltd Electrical connector device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141405B2 (en) * 1970-09-08 1979-08-23 Nissan Motor Compressed gas supply unit of a gas bag impact protection device
DE2330194B2 (en) * 1973-06-14 1977-11-17 Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH, 8261 Aschau GAS SUPPLY UNIT OF AN IMPACT PROTECTION DEVICE FOR MOTOR VEHICLE occupants
GB2096410A (en) * 1981-02-13 1982-10-13 Honda Motor Co Ltd Electrical connector device

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830401A (en) * 1987-02-05 1989-05-16 Honda Giken Kogyo Kabushiki Kaisha Air bag assembly for restraining vehicle occupant
DE3900931A1 (en) * 1988-01-19 1989-07-27 Talley Automative Products Inc PASSIVE RESTRAINT SYSTEM
JPH0224242A (en) * 1988-01-19 1990-01-26 Talley Automot Prod Inc Passive constraint device for car
US4902036A (en) * 1988-01-19 1990-02-20 Talley Automotive Products, Inc. Deflector ring for use with inflators with passive restraint devices
FR2636898A1 (en) * 1988-03-29 1990-03-30 Takata Corp
EP0376566A1 (en) * 1988-12-27 1990-07-04 Talley Automotive Products, Inc. Aspirating/venting air bag module assembly
EP0376564A1 (en) * 1988-12-27 1990-07-04 Talley Automotive Products, Inc. Airbag module and method of making same
FR2662411A1 (en) * 1990-05-24 1991-11-29 Takata Corp PNEUMATIC CUSHION DEVICE.
US5167427A (en) * 1990-05-24 1992-12-01 Takata Corporation Air bag device having engagement portions to facilitate attachment of the cover to the retainer
DE4217956A1 (en) * 1991-07-16 1993-01-21 Daimler Benz Ag Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely
US5193846A (en) * 1991-09-30 1993-03-16 Morton International, Inc. Air bag clamping device
EP0535852A1 (en) * 1991-09-30 1993-04-07 Morton International, Inc. Air bag clamping device
US5398967A (en) * 1993-08-18 1995-03-21 Precision Engineering Co. Air bag inflator
US5489118A (en) * 1993-08-18 1996-02-06 Precision Engineering Company Air bag inflator
EP0788939A1 (en) * 1996-02-06 1997-08-13 Morton International, Inc. Hybrid inflator with integral diffuser
US5860672A (en) * 1996-11-25 1999-01-19 Morton International, Inc. Airbag baffle mount
US5836608A (en) * 1996-12-11 1998-11-17 Morton International, Inc. Airbag deflection mount
DE29802731U1 (en) * 1998-02-17 1998-06-10 Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf Airbag module
US6206417B1 (en) 1998-05-08 2001-03-27 Autoliv Asp, Inc. Air bag inflator exit gas dispersion features
US6394491B2 (en) 1998-05-08 2002-05-28 Autoliv Asp, Inc. Air bag inflation exit gas dispersion features
US6149192A (en) * 1998-08-11 2000-11-21 Trw Inc. Inflator having gas deflector flanges
US6155599A (en) * 1998-08-11 2000-12-05 Trw Vehicle Safety Systems Inc. Retaining ring with gas diffuser
EP0983914A3 (en) * 1998-09-04 2004-01-14 TRW Automotive Safety Systems GmbH & Co. KG Means for fastening a gas generator in an airbag module
EP1114758A1 (en) * 2000-01-05 2001-07-11 Delphi Automotive Systems Sungwoo Co., Ltd. Retainer ring having air deflector and airbag mounting structure using the same
WO2012095137A1 (en) * 2011-01-12 2012-07-19 Daimler Ag Airbag, in particular for a motor vehicle

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal