EP 0907528 A1 19990414 - AIRBAG WITH NON-CIRCULAR VENT HOLE
Title (en)
AIRBAG WITH NON-CIRCULAR VENT HOLE
Title (de)
AIRBAG MIT NICHT KREISFÖRMIGEN ENTGASÖFFNUNGEN
Title (fr)
SAC GONFLABLE DE SECURITE AVEC EVENT NON CIRCULAIRE
Publication
Application
Priority
- US 9710492 W 19970625
- US 2085196 P 19960628
- US 2150096 P 19960710
Abstract (en)
[origin: WO9800313A1] This disclosure describes an airbag in which non-circular vent holes replace traditional circular vent holes. Vent holes, in general, provide a geometric asymmetry in the airbag pattern and induce a stress concentration in the geometry. Investigation of airbag deployments has shown that circular vent holes elongate during the early stages of a deployment. This causes stress concentrations at the two circumferential points of the circle as the fabric is strained. Based on this discovery, the inventors determined that a non-circular vent hole, such as an ellipse or rectangle would be advantageous during the early deployment since this non-circular vent hole has assumed a more natural position during this early straining, thereby not inducing additional straining in this region.
IPC 1-7
IPC 8 full level
B60R 21/276 (2006.01); B60R 21/16 (2006.01); B60R 21/239 (2006.01)
CPC (source: EP KR)
B60R 21/16 (2013.01 - KR); B60R 21/239 (2013.01 - EP)
Citation (search report)
See references of WO 9800313A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9800313 A1 19980108; AU 3640897 A 19980121; BR 9710084 A 19990810; CA 2259373 A1 19980108; CN 1228740 A 19990915; EP 0907528 A1 19990414; JP 2000514014 A 20001024; KR 20000022542 A 20000425
DOCDB simple family (application)
US 9710492 W 19970625; AU 3640897 A 19970625; BR 9710084 A 19970625; CA 2259373 A 19970625; CN 97197495 A 19970625; EP 97933145 A 19970625; JP 50417898 A 19970625; KR 19980710990 A 19981228