DE2944319A1 - Cushion for airbag system - has double chamber with rip seam connection and with vents in one chamber - Google Patents

Cushion for airbag system - has double chamber with rip seam connection and with vents in one chamber

Info

Publication number
DE2944319A1
DE2944319A1 DE19792944319 DE2944319A DE2944319A1 DE 2944319 A1 DE2944319 A1 DE 2944319A1 DE 19792944319 DE19792944319 DE 19792944319 DE 2944319 A DE2944319 A DE 2944319A DE 2944319 A1 DE2944319 A1 DE 2944319A1
Authority
DE
Germany
Prior art keywords
chamber
cushion
seam
impact protection
airbag system
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Withdrawn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
DE19792944319
Other languages
German (de)
Inventor
Luigi Dr.-Ing. 7030 Böblingen Brambilla
Hansjürgen Dipl.-Ing. 7035 Waldenbuch Scholz
Günter Dipl.-Ing. 7277 Wildberg Walz
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 DE19792944319 priority Critical patent/DE2944319A1/en
Publication of DE2944319A1 publication Critical patent/DE2944319A1/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Withdrawn legal-status Critical Current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
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2342—Tear seams
    • 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
    • B60R21/263—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 using a variable source, e.g. plural stage or controlled output
    • B60R2021/2633—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 using a variable source, e.g. plural stage or controlled output with a plurality of inflation levels

Landscapes

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

Abstract

The inflatable cushion for an airbag system for a car has two separate chambers (2,3) made by a seam (4) across a large airbag. The air is passed into the first chamber via an inlet (5). After reaching a set pressure the seam splits and admits air to the second chamber from which it is vented through an array of holes. The two stage cushion provides a progressive protection, with a rapid filling of the first section for immediate protection and additional cover when the second stage is inflated. The inflation is powered by a multi-stage pyrolytic gas generator.

Description

'lAufblasbares Aufprallschutzkissen"'lInflatable Impact Protection Cushion "

Die Erfindung betrifft ein aufblasbares Aufprallschutzkissen fiir Insassen eines Kraftfahrzeuges, das bei einem Unfall je nach Stärke der Verzögerung durch mehrere nacheinander auslösbare Ziindstufen mit dem zur Verfiigung stehenden Gas ansteigendem Druck befiillbar ist, wobei im Ausgangszustand ein Teil des Schutzkissens durch eine Naht od. dgl. abgetrennt ist und durch den ansteigenden Druck diese Naht od. dgl. zerstört wird, so daß im Endzustand das gesamte Volumen des Schutzkissens verfiigbar ist nach Patent (Patentanmeldung P 27 22 551.o).The invention relates to an inflatable impact protection cushion for Occupants of a motor vehicle, in the event of an accident, depending on the strength of the deceleration through several consecutively triggerable ignition stages with the one available Gas can be filled with increasing pressure, with part of the protective cushion in the initial state is separated by a seam or the like and this seam is separated by the increasing pressure Od. Like. Is destroyed, so that in the final state the entire volume of the protective cushion is available according to patent (patent application P 27 22 551.o).

Der vorliegenden Erfindung lag die Aufgabe zugrunde cin derartiges Aufprallschutzkissen so weiterzubilden, daß ein sicheres Füllen beider Stufen ohne Zeitverlust und mit einer möglichst geringen Gasmenge möglich ist.The present invention was based on the object of such a thing Further develop impact protection cushions so that both levels can be safely filled without Loss of time and with the smallest possible amount of gas is possible.

Dics wird erfindungsgemüß dadurch erreicht , daß alle erforderlichen Abströmöffnungen im urspriinglich abgetrennten Teil des Aufprallschutzkissens angeordnet sind.Dics is achieved according to the invention in that all necessary Outflow openings arranged in the originally separated part of the impact protection cushion are.

Durch den erfindungssemäßen Vorschlag wird ein Gasverlust in der Zeit zwischen dem Fiillen der ersten und der zweiten Stufe des Aufprallschutzlcissens vermieden.With the proposal according to the invention, there is a loss of gas over time between filling the first and second stages of the impact protection cushion avoided.

Der Gegenstand der Erfindung soll im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbei spiels näer erläutert werden.The object of the invention is to be based on one in the Drawings shown Ausführungsbei play closer to be explained.

In der Zeichnung zeigen Fig. 1 eine Riickansicht eines erfindungsgemäßen Aufprallschutzkissens, Fig. 2 eine Seitenansicht des Aufprallschutzkissens nach Beendigung der ersten Füllphase, und Fig. 3 das Aufprallschutzkissen nach Fig. 2 in völlig gefüllten Zustand Das in der Zeichnung dargestellte Aufprallschutzkissen 1 ist zur Anbringung auf der Beifahrerseite eines Kraftwagens bestimmt und etwa kopfkissenförmig ausgebildet.In the drawing, Fig. 1 shows a rear view of an inventive Impact protection cushion, FIG. 2 shows a side view of the impact protection cushion Completion of the first filling phase, and FIG. 3 shows the impact protection cushion according to FIG. 2 in completely filled condition The impact protection cushion shown in the drawing 1 is intended for attachment to the passenger side of a motor vehicle and approximately designed pillow-shaped.

Es weist zwei Kammern 2 und 3 auf. die im Ausgangszustand durch eine Naht 4 voneinander getrennt sind. Bei einem Unfall wird über ein Sensorsystem die erste Stufe eines Gasgenerators aktiviert und iiber einen Gaseinlaß 5 zuerst die Kammer 2 des Aufprallschutzkissens 1 gefüllt. In Abhängigkeit von der Unfallschwere kann dann gegebenenfalls mit einer gewissen zeitlichen Verzögerung eine zweite Stufe des Gasgenerators gezündet werden, die einen so starken Druckanstieg in der Kammer 2 bewirkt, daß die Naht 4 zerstört wird, so daß nun das gesandte Volumen der Kammern 2 und 3 zur Verfiigung steht. Um während der erst Phase den Gasverlust möglichst gering zu halten, sind alle erforderlichen Gasabströmöffnungen 6 in der Kammer 3 angeordnet, so daß während der ersten Phase - Kammer 2 gefüllt , Naht !t intakt - cin Gasverlust auftritt.It has two chambers 2 and 3. which in the initial state by a Seam 4 are separated from each other. In the event of an accident, the The first stage of a gas generator is activated and, via a gas inlet 5, first the Chamber 2 of the impact protection cushion 1 filled. Depending on the severity of the accident can then, if necessary, a second stage with a certain time delay of the gas generator are ignited, causing such a sharp rise in pressure in the chamber 2 causes the seam 4 to be destroyed, so that now the sent Volume of chambers 2 and 3 is available. To during the first phase the To keep gas loss as low as possible, all necessary gas outflow openings are 6 arranged in chamber 3, so that chamber 2 is filled during the first phase , Seam! T intact - gas loss occurs.

Claims (2)

Anspniche Aufblasbares Aufprallschutzkissen fiir Insassen eines Kraftfahrzcuges, das bei einem Unfall je nach Stärke der Verzögerung durch mehrere nacheinander auslösbare Zündstufen mit dem zur Verfügung stehenden Gas bei ansteigendem Druck befüllbar ist, wobei im Ausgangszustand ein Teil des Schutzkissens durch eine Naht od. dgl. abgetrennt ist und durch den ansteigenden Druck diese Naht od. dgl. zerstört wird, so daß im Endzustand das gesamte Volumen des Schutzkissens verfügbar ist, nach Patent . ... ... (Patentanmeldung P 27 22 551.0), d a d u r c h g e k e n n z e i c h -n e t, daß alle erforderlichen Abströmöffnungen (6) im ursprijnglich abgetrennten Teil (Kammer 3) des Aufprallschutzkissens (1) angeordnet sind.Comfortable inflatable impact protection cushion for the occupants of a motor vehicle, in the event of an accident, depending on the strength of the delay, several can be triggered one after the other Ignition stages can be filled with the available gas when the pressure rises is, wherein in the initial state a part of the protective cushion od by a seam. is separated and this seam or the like is destroyed by the increasing pressure, so that in the final state the entire volume of the protective cushion is available, according to the patent . ... ... (patent application P 27 22 551.0), d u r c h e k e n n n z e i c h -n e t that all necessary outflow openings (6) in the originally separated Part (chamber 3) of the impact protection cushion (1) are arranged. 2) Aufprallschutzkissen nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß beide Teile (Kammern 2 und 3) gleiches Volumen aufweisen.2) Impact protection cushion according to claim 1, d a d u r c h g e k e n n z e i c h n e t that both parts (chambers 2 and 3) have the same volume.
DE19792944319 1979-11-02 1979-11-02 Cushion for airbag system - has double chamber with rip seam connection and with vents in one chamber Withdrawn DE2944319A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792944319 DE2944319A1 (en) 1979-11-02 1979-11-02 Cushion for airbag system - has double chamber with rip seam connection and with vents in one chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792944319 DE2944319A1 (en) 1979-11-02 1979-11-02 Cushion for airbag system - has double chamber with rip seam connection and with vents in one chamber

Publications (1)

Publication Number Publication Date
DE2944319A1 true DE2944319A1 (en) 1981-05-14

Family

ID=6085009

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792944319 Withdrawn DE2944319A1 (en) 1979-11-02 1979-11-02 Cushion for airbag system - has double chamber with rip seam connection and with vents in one chamber

Country Status (1)

Country Link
DE (1) DE2944319A1 (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474390A (en) * 1982-03-19 1984-10-02 Daimler-Benz Aktiengesellschaft Gas cushion on passenger side for motor vehicles, especially passenger motor vehicles
US5094477A (en) * 1989-12-27 1992-03-10 Ikeda Bussan Co., Ltd. Airbag restraint system
DE4224822A1 (en) * 1991-07-26 1993-01-28 Airbags Int Ltd Inflatable vehicle airbag
US5280954A (en) * 1991-07-24 1994-01-25 Mercedes-Benz Ag Inflatable impact protection cushion
US5310215A (en) * 1993-01-13 1994-05-10 Trw Vehicle Safety Systems Inc. Apparatus for venting of an inflatable air bag
US5333903A (en) * 1991-01-17 1994-08-02 Trw Repa Gmbh Inflatable gas bag for restraining systems in vehicles
EP0614785A1 (en) * 1993-03-11 1994-09-14 Morton International, Inc. Passenger side air bag with controlled deployment
US5378019A (en) * 1993-03-11 1995-01-03 Morton International, Inc. Controlled deployment driver's side air bag
US5395134A (en) * 1993-04-02 1995-03-07 Morton International, Inc. Passenger side air bag with controlled deployment
WO1995006574A1 (en) * 1993-08-31 1995-03-09 Alliedsignal Inc. Air bag with improved tear stitch pattern
US5423273A (en) * 1994-02-01 1995-06-13 General Motors Corporation Single seam cube shaped restraint cushion
US5454595A (en) * 1994-09-08 1995-10-03 Morton International, Inc. Hidden volume cushion
EP0679555A1 (en) * 1994-04-26 1995-11-02 Toyoda Gosei Co., Ltd. Air bag system
US5531476A (en) * 1992-08-20 1996-07-02 Mercedes-Benz Ag Occupant restraint system for motor vehicles with an airbag
US5718450A (en) * 1996-01-19 1998-02-17 Takata, Inc. Inflatable restraint system having a head/thorax cushion for side impact protection
US5765863A (en) * 1996-03-27 1998-06-16 Morton International, Inc. Airbag cushion having compression-deployed section
US5839755A (en) * 1994-03-03 1998-11-24 Trw Vehicle Safety Systems Inc. Method and apparatus for restraining a vehicle occupant
EP0901432A1 (en) * 1996-06-05 1999-03-17 Simula Inc. Low aggressivity variable-volume variable-inflation air bag system
WO1999037507A1 (en) * 1998-01-22 1999-07-29 Trw Occupant Restraint Systems Gmbh & Co. Kg Side collision protection system for vehicles
US6135493A (en) * 1998-06-02 2000-10-24 Breed Automotive Technology, Inc. Airbag with compensating volume
DE19948605C1 (en) * 1999-10-08 2001-03-01 Irene Amon Automobile airbag device has inner and outer airbags of differing diameter inflated upon detonation of respective stages of 2-stage gas generator
WO2001026936A1 (en) 1999-10-08 2001-04-19 Dürschinger, Dagmar Airbag device
US6417764B2 (en) * 1994-07-15 2002-07-09 Mark Christopher Tonkin Safety system for vehicles
DE19620537B4 (en) * 1995-06-03 2006-10-12 Volkswagen Ag Air bag device
US8087692B2 (en) 2006-11-22 2012-01-03 Takata-Petri Ag Airbag for a motor vehicle

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474390A (en) * 1982-03-19 1984-10-02 Daimler-Benz Aktiengesellschaft Gas cushion on passenger side for motor vehicles, especially passenger motor vehicles
US5094477A (en) * 1989-12-27 1992-03-10 Ikeda Bussan Co., Ltd. Airbag restraint system
US5333903A (en) * 1991-01-17 1994-08-02 Trw Repa Gmbh Inflatable gas bag for restraining systems in vehicles
US5280954A (en) * 1991-07-24 1994-01-25 Mercedes-Benz Ag Inflatable impact protection cushion
DE4224822A1 (en) * 1991-07-26 1993-01-28 Airbags Int Ltd Inflatable vehicle airbag
DE4224822C2 (en) * 1991-07-26 2002-03-21 Airbags Internat Ltd Inflatable airbag
US5531476A (en) * 1992-08-20 1996-07-02 Mercedes-Benz Ag Occupant restraint system for motor vehicles with an airbag
US5310215A (en) * 1993-01-13 1994-05-10 Trw Vehicle Safety Systems Inc. Apparatus for venting of an inflatable air bag
EP0614785A1 (en) * 1993-03-11 1994-09-14 Morton International, Inc. Passenger side air bag with controlled deployment
US5378019A (en) * 1993-03-11 1995-01-03 Morton International, Inc. Controlled deployment driver's side air bag
US5395134A (en) * 1993-04-02 1995-03-07 Morton International, Inc. Passenger side air bag with controlled deployment
WO1995006574A1 (en) * 1993-08-31 1995-03-09 Alliedsignal Inc. Air bag with improved tear stitch pattern
US5423273A (en) * 1994-02-01 1995-06-13 General Motors Corporation Single seam cube shaped restraint cushion
US5839755A (en) * 1994-03-03 1998-11-24 Trw Vehicle Safety Systems Inc. Method and apparatus for restraining a vehicle occupant
EP0679555A1 (en) * 1994-04-26 1995-11-02 Toyoda Gosei Co., Ltd. Air bag system
US5542698A (en) * 1994-04-26 1996-08-06 Toyoda Gosei Co., Ltd. Circular air bag mounted to an instrument panel
US6417764B2 (en) * 1994-07-15 2002-07-09 Mark Christopher Tonkin Safety system for vehicles
EP0700809A1 (en) 1994-09-08 1996-03-13 Morton International, Inc. Hidden volume cushion
US5454595A (en) * 1994-09-08 1995-10-03 Morton International, Inc. Hidden volume cushion
DE19620537B4 (en) * 1995-06-03 2006-10-12 Volkswagen Ag Air bag device
US5718450A (en) * 1996-01-19 1998-02-17 Takata, Inc. Inflatable restraint system having a head/thorax cushion for side impact protection
US5765863A (en) * 1996-03-27 1998-06-16 Morton International, Inc. Airbag cushion having compression-deployed section
EP0901432A4 (en) * 1996-06-05 2000-11-15 Simula Inc Low aggressivity variable-volume variable-inflation air bag system
EP0901432A1 (en) * 1996-06-05 1999-03-17 Simula Inc. Low aggressivity variable-volume variable-inflation air bag system
WO1999037507A1 (en) * 1998-01-22 1999-07-29 Trw Occupant Restraint Systems Gmbh & Co. Kg Side collision protection system for vehicles
US6457742B1 (en) 1998-01-22 2002-10-01 Trw Occupant Restraint Systems Gmbh & Co. Kg Side collision protection system for vehicles
US6135493A (en) * 1998-06-02 2000-10-24 Breed Automotive Technology, Inc. Airbag with compensating volume
DE19948605C1 (en) * 1999-10-08 2001-03-01 Irene Amon Automobile airbag device has inner and outer airbags of differing diameter inflated upon detonation of respective stages of 2-stage gas generator
WO2001026936A1 (en) 1999-10-08 2001-04-19 Dürschinger, Dagmar Airbag device
DE10035974C1 (en) * 1999-10-08 2002-06-06 Irene Amon airbag device
US8087692B2 (en) 2006-11-22 2012-01-03 Takata-Petri Ag Airbag for a motor vehicle
EP2094539B1 (en) * 2006-11-22 2012-05-30 Takata-Petri AG Airbag for a motor vehicle
US8267426B2 (en) 2006-11-22 2012-09-18 Takata AG Airbag for a motor vehicle

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