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- Withdrawn
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
- B60R21/233—Inflatable 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
-
- 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
- B60R21/2338—Tethers
-
- 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
- B60R21/2338—Tethers
- B60R2021/23382—Internal tether means
-
- 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
- B60R21/235—Inflatable members characterised by their material
- B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
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)
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)
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 |
-
1993
- 1993-03-04 DE DE19934306696 patent/DE4306696A1/en not_active Withdrawn
Cited By (8)
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |