DE4306696A1 - Air bag for vehicle restraint system - uses retaining strips with reinforcing sections to avoid exfoliating load effect. - Google Patents

Air bag for vehicle restraint system - uses retaining strips with reinforcing sections to avoid exfoliating load effect.

Info

Publication number
DE4306696A1
DE4306696A1 DE19934306696 DE4306696A DE4306696A1 DE 4306696 A1 DE4306696 A1 DE 4306696A1 DE 19934306696 DE19934306696 DE 19934306696 DE 4306696 A DE4306696 A DE 4306696A DE 4306696 A1 DE4306696 A1 DE 4306696A1
Authority
DE
Germany
Prior art keywords
air bag
tether
bag according
exfoliating
retaining strips
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Withdrawn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
DE19934306696
Other languages
German (de)
Inventor
Ernst Dr Rer Nat Roehl
Helge Dipl Ing Schuetze
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.)
Phoenix AG
Original Assignee
Phoenix 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 Phoenix AG filed Critical Phoenix AG
Priority to DE19934306696 priority Critical patent/DE4306696A1/en
Publication of DE4306696A1 publication Critical patent/DE4306696A1/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Withdrawn legal-status Critical Current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
    • B60R21/23Inflatable members
    • B60R21/231Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/233Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • 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
    • B60R21/23Inflatable members
    • B60R21/231Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334Expansion control features
    • B60R21/2338Tethers
    • 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
    • B60R21/23Inflatable members
    • B60R21/231Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334Expansion control features
    • B60R21/2338Tethers
    • B60R2021/23382Internal tether means
    • 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
    • B60R21/23Inflatable members
    • B60R21/235Inflatable members characterised by their material
    • B60R2021/23571Inflatable members characterised by their material characterised by connections between panels

Abstract

The air bag forms part of a vehicle air bag system. It incorporates retaining strips in which the retaining strip connections are made outside the circumferential section of the upper side. The retaining strips consist of a strip section (1) and a reinforcing section (2). USE/ADVANTAGE - Vehicle restraint air bag in which obtuse angle between strip and connection and upper section of upper part of bag avoids exfoliating load effect.

Description

Die Luftsäcke für das Airbagsystem gemäß dem Stand der Technik weisen sogenannte Fangbänder auf, die das Aufblasverhalten und die Geometrie im aufgeblasenen Zustand dahingehend beeinflussen, daß die Schutzfunktion für den Fahrzeuginsassen, besonders auch bei leicht schrägem Aufprall, sicher erfüllt wird.The air bags for the airbag system according to the prior art have so-called tether, which the inflation behavior and the geometry when inflated influence that the protective function for the vehicle occupant, especially fulfilled in the event of a slightly oblique impact becomes.

Bekannte Ausführungen von Luftsäcken haben 3, 4 oder 6 Fangbänder. Um die Aufprallfläche des Luftsackes möglichst günstig zu gestalten, sind die Fangbänder an der Oberseite des Luftsackes auf einem größeren Teilkreis befestigt als an der Unterseite, wo der Teilkreis üblicherweise den Befestigungsteilen für die Gasgeneratoren entspricht (Fig. 1).Known versions of air bags have 3, 4 or 6 tethers. In order to make the impact surface of the airbag as cheap as possible, the tether straps are attached to the top of the airbag on a larger pitch circle than on the underside, where the pitch circle usually corresponds to the fastening parts for the gas generators ( Fig. 1).

Weiter ist bekannt, daß sich die Fangbänder an der Oberseite entweder überlappen, spitz zusammenstoßen oder an separaten Halteteilen befestigt sind. Durch die bekannten Formen der Anbindung an die Oberplatte stellt sich unter Beanspruchung zwischen dem freien Schenkel des Fangbandes und dem am Oberteil befestigten Schenkel des Fangbandes bzw. dem Befestigungsteil ein spitzer Winkel ein, was zu einer Schälbelastung der Fügestellen führt. Infolge der extrem hohen Belastung dieser Fügestellen ist damit die Gefahr von Beschädigungen im Bereich der Anbindung verbunden. It is also known that the tether is on the top either overlap, collide pointedly or on separate Holding parts are attached. Through the familiar forms of Connection to the top plate is subject to stress between the free leg of the tether and the am Upper part attached leg of the tether or the Fastening an acute angle, resulting in a Peeling load on the joints leads. As a result of the extreme high stress on these joints is therefore a danger of damage in the area of the connection.  

Gegenstand dieser Erfindung ist die kraftflußgerechte Gestaltung der Anbindung der Fangbänder an der Oberseite. Insbesondere wird durch den sich bei dieser Ausführung einstellenden stumpfen Winkel zwischen Fangband bzw. Fangbandanbindung und Oberteil die Schälbelastung vermieden und durch die wesentlich günstigere Scherbelastung ersetzt. Erreicht wird das durch die Gestaltung der Anbindung gemäß Kennzeichen des Anspruchs 1, wobei zweckmäßige Ausgestaltungen der Erfindung in den Ansprüchen 2 bis 7 genannt sind (Fig. 2 bis 5).The subject of this invention is the design of the connection of the tether straps on the upper side in accordance with the force flow. In particular, the obtuse angle that occurs in this embodiment between the tether or tether connection and the upper part avoids the peeling load and replaces it with the much more favorable shear stress. This is achieved by designing the connection according to the characterizing part of claim 1, expedient embodiments of the invention being mentioned in claims 2 to 7 ( FIGS. 2 to 5).

Neben der günstigeren Krafteinteilung ergibt sich noch der Vorteil, daß die gesamte Anbindung wegen der besseren Ausnutzung der Materialeigenschaften leichter gestaltet werden kann, was bei konstanten Beschleunigungen des Luftsackoberteils durch das vom Gasgenerator erzeugte Gas zu weiterer Reduzierung der Reaktionskräfte auf die Fangbänder auf ihre Anbindung führt. Für die gesamte Anbindung erscheinen Gewichtsreduzierungen und damit Belastungsreduzierungen um bis zu 30% realisierbar.In addition to the cheaper force distribution, there is also the Advantage that the entire connection because of the better Utilization of material properties made easier can be what with constant accelerations of the Airbag upper part through the gas generated by the gas generator to further reduce the reaction forces on the Lanyards leads to their connection. For the whole Linkage appear weight reductions and thus Load reductions of up to 30% can be achieved.

Die Erfindung wird nun anhand von Ausführungsbeispielen unter Bezugnahme auf schematische Zeichnungen erläutert. Es zeigen:The invention is now based on exemplary embodiments explained with reference to schematic drawings. Show it:

Fig. 1 eine Ausführungsform gemäß Stand der Technik Technik mit α1 < 90°; Figure 1 shows an embodiment according to the prior art with α 1 <90 °.

Fig. 2, 3 zwei erfindungsgemäße Ausführungsformen mit α2 < 90°; Fig. 2, 3, two embodiments of the invention with α 2 <90 °;

Fig. 4 eine erfindungsgemäße Ausführungsform mit Geweberichtung (Kette/Schuß) von β = 45°; Figure 4 shows an embodiment of the invention with fabric direction (warp / weft) of β = 45 °.

Fig. 5 eine erfindungsgemäße Ausführungsform mit Fangband (1) und Verstärkung (2). Fig. 5 shows an embodiment of the invention with tether ( 1 ) and reinforcement ( 2 ).

Claims (7)

1. Luftsack für das Airbagsystem mit Fangbändern, dadurch gekennzeichnet, daß die Fangbandanbindung außerhalb des Teilkreises der Oberseite erfolgt.1. Air bag for the airbag system with tether, characterized in that the tether connection is made outside the pitch circle of the top. 2. Luftsack nach Anspruch 1, dadurch gekennzeichnet, daß die Fangbandanbindung mit einer zusätzlichen innen angesetzten Verstärkung versehen ist.2. Air bag according to claim 1, characterized in that the tether connection with an additional inside attached reinforcement is provided. 3. Luftsack nach Anspruch 2, dadurch gekennzeichnet, daß die zusätzlich innen angesetzte Verstärkung Bestandteil der sogenannten Abdeckplatte ist.3. Air bag according to claim 2, characterized in that the additional internal reinforcement component the so-called cover plate. 4. Luftsack nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Fügestellen vulkanisiert, genäht, geklebt oder geschweißt sind.4. Air bag according to one of claims 1 to 3, characterized characterized that the joints vulcanized, are sewn, glued or welded. 5. Luftsack nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Fangbänder zwecks Verbesserung ihrer elastischen Eigenschaften Einschnürungen aufweisen.5. Air bag according to one of claims 1 to 4, characterized characterized that the tether for the purpose of improvement have constrictions due to their elastic properties. 6. Luftsack nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Fangbandmaterial zwecks Verbesserung der elastischen Eigenschaften unter 45° zu Kette und Schuß geschnitten ist.6. Air bag according to one of claims 1 to 5, characterized characterized in that the tether material purpose Improvement of the elastic properties below 45 ° cut to warp and weft. 7. Luftsack nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß auch die zusätzlichen Verstärkungen eine Form haben, die die kraftflußgerechte Gestaltung der Anbindung unterstützt und Elastizitätsunterschiede an den Fügestellen minimiert.7. Air bag according to one of claims 1 to 6, characterized characterized in that the additional reinforcements have a shape that is appropriate to the flow of power the connection supports and elasticity differences minimized at the joints.
DE19934306696 1992-03-13 1993-03-04 Air bag for vehicle restraint system - uses retaining strips with reinforcing sections to avoid exfoliating load effect. Withdrawn DE4306696A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934306696 DE4306696A1 (en) 1992-03-13 1993-03-04 Air bag for vehicle restraint system - uses retaining strips with reinforcing sections to avoid exfoliating load effect.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4207969 1992-03-13
DE19934306696 DE4306696A1 (en) 1992-03-13 1993-03-04 Air bag for vehicle restraint system - uses retaining strips with reinforcing sections to avoid exfoliating load effect.

Publications (1)

Publication Number Publication Date
DE4306696A1 true DE4306696A1 (en) 1993-09-16

Family

ID=25912750

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934306696 Withdrawn DE4306696A1 (en) 1992-03-13 1993-03-04 Air bag for vehicle restraint system - uses retaining strips with reinforcing sections to avoid exfoliating load effect.

Country Status (1)

Country Link
DE (1) DE4306696A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521982A1 (en) * 1994-06-15 1995-12-21 Trw Vehicle Safety Systems Airbag attachment arrangement
DE19505507A1 (en) * 1995-02-10 1996-08-22 Petri Ag Niederlassung Berlin Gas bag is for airbag for front seat passengers
WO1998012075A1 (en) * 1996-09-18 1998-03-26 Minnessota Mining And Manufacturing Company Adhesively-bonded inflatable restraint and method of making
WO1999014082A1 (en) * 1996-09-18 1999-03-25 Minnesota Mining And Manufacturing Company Adhesively-bonded inflatable restraint and method of making
CN106194235A (en) * 2016-09-09 2016-12-07 西安科技大学 Manual type colliery tunneling ventilation air duct air outlet regulation device
US10513239B2 (en) 2015-05-28 2019-12-24 Joyson Safety Systems Germany Gmbh Gas bag for an airbag module

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521982A1 (en) * 1994-06-15 1995-12-21 Trw Vehicle Safety Systems Airbag attachment arrangement
DE19505507A1 (en) * 1995-02-10 1996-08-22 Petri Ag Niederlassung Berlin Gas bag is for airbag for front seat passengers
DE19505507C2 (en) * 1995-02-10 1998-10-08 Petri Ag Niederlassung Berlin Airbag for a passenger airbag
WO1998012075A1 (en) * 1996-09-18 1998-03-26 Minnessota Mining And Manufacturing Company Adhesively-bonded inflatable restraint and method of making
WO1999014082A1 (en) * 1996-09-18 1999-03-25 Minnesota Mining And Manufacturing Company Adhesively-bonded inflatable restraint and method of making
US10513239B2 (en) 2015-05-28 2019-12-24 Joyson Safety Systems Germany Gmbh Gas bag for an airbag module
CN106194235A (en) * 2016-09-09 2016-12-07 西安科技大学 Manual type colliery tunneling ventilation air duct air outlet regulation device
CN106194235B (en) * 2016-09-09 2018-07-06 西安科技大学 Hand coal mine tunneling ventilation air duct air outlet regulation device

Similar Documents

Publication Publication Date Title
DE60223164T2 (en) SIDE IMPACT AIR BAG DEVICE
DE102010003026B4 (en) air bag
DE102011051318A1 (en) INTERNAL AIRBAG DEVICE
EP0818360A1 (en) Knee bolster for a vehicle
DE102011051395A1 (en) ROOF AIRBAG DEVICE FOR A VEHICLE
DE102013201880B4 (en) Inflatable curtain airbag assembly
DE10004483A1 (en) Fastening structure for vehicle passenger protection units restricts movement of housing wall containing inflatable air curtain under inflating force but collapses under compressive shocks triggered by occupant
DE60206717T2 (en) Vehicle occupant head protection cushion
DE102004051663B4 (en) Foam body for producing a vehicle seat with airbag module
EP1991448A1 (en) Safety arrangement in a vehicle seat
WO2006097309A1 (en) Vehicle seat
DE4306696A1 (en) Air bag for vehicle restraint system - uses retaining strips with reinforcing sections to avoid exfoliating load effect.
WO2021043713A1 (en) Front airbag for mounting on a vehicle roof and front airbag module and vehicle comprising a front airbag module of this type
EP2817177B1 (en) Airbag module and assembly having an instrument panel and an airbag module
DE102004026313A1 (en) Overhead airbag system
DE102017124029A1 (en) GAS BAG FOR A MOTOR VEHICLE AND METHOD FOR FIXING A HOLDING BELT TO THE GASSETTE WOVEN GASKET
DE102005051043B4 (en) Vehicle seat with side airbag supported on its backrest structure
DE19505507C2 (en) Airbag for a passenger airbag
DE102013200077A1 (en) A vehicle seat assembly having a side airbag and a guide panel with spaced forward ends for generating a shear force
DE102007023352B3 (en) Textile belt strap for use in personal protection devices in land vehicles, aircraft or sea vessels, has seam for executing loading of belt strap and seam has upper thread and lower thread arranged on two sides of belt strap
DE102013225053A1 (en) airbag module
EP1373615B1 (en) Method for weaving an airbag
DE102011056672A1 (en) Vehicle seat for use in vehicle, particularly motor vehicle, has airbag module that is arranged between two structural sections, which are spanned to each-other in fan-shape by deployment of air bag
EP0861759A2 (en) Passenger side air bag module
WO1998042548A1 (en) Side impact protection device

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee