DE4217956A1 - Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely - Google Patents

Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely

Info

Publication number
DE4217956A1
DE4217956A1 DE19924217956 DE4217956A DE4217956A1 DE 4217956 A1 DE4217956 A1 DE 4217956A1 DE 19924217956 DE19924217956 DE 19924217956 DE 4217956 A DE4217956 A DE 4217956A DE 4217956 A1 DE4217956 A1 DE 4217956A1
Authority
DE
Germany
Prior art keywords
cushion
gas
generator
bead
retaining ring
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Withdrawn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
DE19924217956
Other languages
German (de)
Inventor
Ulrich Dipl Ing Tschaeschke
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 DE19924217956 priority Critical patent/DE4217956A1/en
Publication of DE4217956A1 publication Critical patent/DE4217956A1/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Withdrawn legal-status Critical Current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
    • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
    • 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
    • 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

Landscapes

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

Abstract

The gas-generator with radial discharge ports inflates a cushion protecting car passengers. The inner edge of the cushion immediately adjacent to the generator has a thickened bead portion, while a holding ring round the generator at the ports is fixed to the generator bracket and secures the cushion, and also deflects the outflowing gas. At its inner end, the ring is bent back onto the top of the bracket, completely covering the cushion bead. A portion of the ring above this slopes outwards, forming a deflecting ramp for the outflowing gas. ADVANTAGE - Allows use of cushion with thick bead.

Description

Die Erfindung betrifft einen Gasgenerator mit radialen Ab­ strömöffnungen für aufblasbare, dem Schutz der Insassen von Kraftwagen dienende Gaskissen, die in ihrem dem Gasgenerator direkt benachbarten inneren Randbereich in eine wulstartige Verdickung auslaufen, mit einem den Gasgenerator im Bereich der Abströmöffnungen umgebenden, an einem Generatorträger zu befe­ stigenden Haltering für das Gaskissen, wobei der Haltering so ausgebildet ist, daß er eine Ablenkfunktion für das ausströ­ mende Gas ausübt.The invention relates to a gas generator with radial Ab inflatable openings for inflatable, protecting the occupants of Automotive gas cushions in their the gas generator directly adjacent inner edge area in a bead-like Leak with a gas generator in the area of the Outflow openings surrounding, on a generator support rising retaining ring for the gas cushion, the retaining ring so is designed to discharge a deflecting function gas.

Ein derartiger Gasgenerator ist bereits der DE 36 04 843 A1 als bekannt zu entnehmen. Dieser bekannte Generator weist den Nachteil auf, daß besonders die Oberseite des innersten Gas­ kissenbereiches stärker als erwünscht von ausströmenden heißen Gasen beaufschlagt werden kann.Such a gas generator is already known from DE 36 04 843 A1 known to take. This known generator has the Disadvantage on that especially the top of the innermost gas pillow area stronger than desired from escaping hot Gases can be applied.

Eine ähnliche Anordnung ist auch der DE 39 00 931 A1 als be­ kannt zu entnehmen. Dort ist zwischen Haltering und Gasaus­ trittsöffnungen des Generators nur ein relativ schmaler Spalt vorgesehen, so daß ein gewisser Schutz für den inneren Randbe­ reich des Gaskissens gegeben ist. Für ein Gaskissen, dessen innerer Randbereich von einem relativ dicken Wulst gebildet wird, ist diese Anordnung aber kaum brauchbar.A similar arrangement is also DE 39 00 931 A1 known to take. There is between the retaining ring and Gasaus outlet openings of the generator only a relatively narrow gap provided so that some protection for the inner randbe gas cushion is given. For a gas pillow whose inner edge area formed by a relatively thick bead this arrangement is hardly usable.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ohne baulichen Mehraufwand hier Abhilfe zu schaffen. The present invention is therefore based on the object To remedy this without additional construction work.  

Diese Aufgabe wird bei einem gattungsgemäßen Gasgenerator er­ findungsgemäß dadurch gelöst, daß der Haltering an seinem in­ neren Endbereich bis auf die Oberseite des Generatorträgers zurückgebogen ist und so eine völlige Abdeckung für die wulstartige Verdickung des Gaskissens bildet, und daß ein dar­ über liegender Bereich des Halteringes schräg nach außen ver­ läuft und eine Ablenkschräge für das ausströmende Gas bildet.This task is done with a generic gas generator solved according to the invention in that the retaining ring on its in end area up to the top of the generator carrier is bent back and so a complete cover for the bead-like thickening of the gas cushion forms, and that a Ver over the area of the retaining ring diagonally outwards runs and forms a deflection slope for the escaping gas.

Der Gegenstand der Erfindung soll im folgenden anhand eines in der Zeichnung, die einen Vertikalschnitt durch einen äußeren Teilbereich eines Gasgenerators zeigt, dargestellten Ausfüh­ rungsbeispiels näher erläutert werden.The subject matter of the invention is to be described in the following with the of the drawing, which is a vertical section through an outer Part of a gas generator shows, shown embodiment tion example are explained in more detail.

Ein rotationssymmetrischer Gasgenerator 1 mit radialen Ab­ strömöffnungen 2 ist über eine nur angedeutete Verschraubung 3 an einem Generatorträger 4 befestigt. Zum Halten eines Gaskis­ sens 5 dient ein Haltering 6.A rotationally symmetrical gas generator 1 with radial flow openings 2 is fastened to a generator support 4 via a screw connection 3, which is only indicated. A holding ring 6 is used to hold a gas sensor 5 .

An seinem inneren Endbereich 7 ist der Haltering 6 bis auf die Oberseite des Generatorträgers 4 zurückgebogen und bildet so eine völlige Abdeckung für eine wulstartige Verdickung 9, die den inneren Randbereich des Gaskissens 5 bildet, und zu dessen fester Halterung beiträgt. Oberhalb dieses Endbereiches 7 bil­ det der Haltering 6 eine Ablenkschräge 8 für das aus den Ab­ strömöffnungen 2 austretende Gas.At its inner end region 7 , the retaining ring 6 is bent back to the top of the generator carrier 4 and thus forms a complete cover for a bead-like thickening 9 , which forms the inner edge region of the gas cushion 5 , and contributes to its firm mounting. Above this end region 7 bil det the retaining ring 6 has a deflection slope 8 for the gas emerging from the flow openings 2 .

Claims (1)

Gasgenerator mit radialen Abströmöffnungen für aufblasbare, dem Schutz der Insassen von Kraftwagen dienende Gaskissen, die in ihrem dem Gasgenerator direkt benachbarten inneren Randbereich in eine wulstartige Verdickung auslaufen, mit einem den Gasge­ nerator im Bereich der Abströmöffnungen umgebenden, an einem Generatorträger zu befestigenden Haltering für das Gaskissen, wobei der Haltering so ausgebildet ist, daß er eine Ablenk­ funktion für das ausströmende Gas ausübt, dadurch gekennzeichnet, daß der Haltering (6) an seinem inneren Endbereich (7) bis auf die Oberseite des Generatorträgers (4) zurückgebogen ist und so eine völlige Abdeckung für die wulstartige Verdickung (9) des Gaskissens bildet, und daß ein darüberliegender Bereich des Halteringes (6) schräg nach außen verläuft und eine Ablenk­ schräge (8) für das ausströmende Gas bildet.Gas generator with radial outflow openings for inflatable gas cushions serving to protect the occupants of motor vehicles, which run out into a bead-like thickening in their inner edge region directly adjacent to the gas generator, with a retaining ring for the gas generator surrounding the outflow openings and to be fastened to a generator support Gas cushion, wherein the retaining ring is designed so that it exerts a deflection function for the outflowing gas, characterized in that the retaining ring ( 6 ) is bent back at its inner end region ( 7 ) up to the top of the generator support ( 4 ) and thus one forms complete cover for the bead-like thickening ( 9 ) of the gas cushion, and that an overlying area of the retaining ring ( 6 ) extends obliquely outwards and forms a deflecting slope ( 8 ) for the outflowing gas.
DE19924217956 1991-07-16 1992-05-30 Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely Withdrawn DE4217956A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924217956 DE4217956A1 (en) 1991-07-16 1992-05-30 Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4123518 1991-07-16
DE19924217956 DE4217956A1 (en) 1991-07-16 1992-05-30 Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely

Publications (1)

Publication Number Publication Date
DE4217956A1 true DE4217956A1 (en) 1993-01-21

Family

ID=25905523

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924217956 Withdrawn DE4217956A1 (en) 1991-07-16 1992-05-30 Gas generator inflating passenger protecting cushion - has holding ring bent to cover bead on cushion completely

Country Status (1)

Country Link
DE (1) DE4217956A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29705753U1 (en) * 1997-03-18 1997-05-22 Petri Ag Arrangement for connecting a gas bag to a gas generator in an airbag module
WO1997024241A1 (en) * 1995-12-28 1997-07-10 Precision Fabrics Group, Inc. Attachment device for an inflatable protective cushion
DE29800444U1 (en) * 1998-01-13 1998-04-23 Trw Automotive Safety Sys Gmbh Flame protection for an airbag
US6247721B1 (en) 1998-07-17 2001-06-19 Trw Occupant Restraint Systems Gmbh & Co. Kg Gas bag module and method of assembly thereof
EP1028035A3 (en) * 1999-02-09 2002-11-13 TRW Automotive Safety Systems GmbH & Co. KG Airbag for a motor vehicle airbag module
EP2070776A1 (en) 2007-12-13 2009-06-17 Takata Corporation Airbag apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915202B2 (en) * 1979-04-14 1981-02-19 Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh, 8261 Aschau Sheet metal gas generator
DE3604843A1 (en) * 1986-02-15 1987-08-27 Daimler Benz Ag Gas generator
DE3900931A1 (en) * 1988-01-19 1989-07-27 Talley Automative Products Inc PASSIVE RESTRAINT SYSTEM

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915202B2 (en) * 1979-04-14 1981-02-19 Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh, 8261 Aschau Sheet metal gas generator
DE3604843A1 (en) * 1986-02-15 1987-08-27 Daimler Benz Ag Gas generator
DE3900931A1 (en) * 1988-01-19 1989-07-27 Talley Automative Products Inc PASSIVE RESTRAINT SYSTEM

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997024241A1 (en) * 1995-12-28 1997-07-10 Precision Fabrics Group, Inc. Attachment device for an inflatable protective cushion
US5845928A (en) * 1995-12-28 1998-12-08 Precision Fabrics Group, Inc. Attachment device for an inflatable protective cushion
DE29705753U1 (en) * 1997-03-18 1997-05-22 Petri Ag Arrangement for connecting a gas bag to a gas generator in an airbag module
DE29800444U1 (en) * 1998-01-13 1998-04-23 Trw Automotive Safety Sys Gmbh Flame protection for an airbag
US6247721B1 (en) 1998-07-17 2001-06-19 Trw Occupant Restraint Systems Gmbh & Co. Kg Gas bag module and method of assembly thereof
EP1028035A3 (en) * 1999-02-09 2002-11-13 TRW Automotive Safety Systems GmbH & Co. KG Airbag for a motor vehicle airbag module
EP2070776A1 (en) 2007-12-13 2009-06-17 Takata Corporation Airbag apparatus
US7722075B2 (en) 2007-12-13 2010-05-25 Takata Corporation Airbag apparatus
CN101456398B (en) * 2007-12-13 2012-10-10 高田株式会社 Airbag apparatus

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Legal Events

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