Side airbag substitute of seat for any vehicle

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/02 (2006.01) B60N 2/04 (2006.01) B60N 2/07 (2006.01) B60N 2/08 (2006.01) B60N 2/39 (2006.01) B60N 2/42 (2006.01) B60N 2/427 (2006.01) B60N 2/433 (2006.01)

Patent

CA 2230721

As yet great intrusion of vehicle side into a passenger compartment of motor- vehicle in side collisions causes injury- and whiplash-related deaths linked to collapse of the totally deformed vehicle side and incapability of side airbags to absorb great lateral energy and prevent the intrusion thereof. In any side collision a side airbag-substitute removes a passenger, sitting on the seat rotating about an inboard and/or outboard floor rail, from an injury-prone area to a vehicle-centre during which lateral energy is lowered by work of fracture of sites of predetermined fracture of the outboard floor rail and the removal of the passenger and seat and the remaining energy is absorbed by at least one energy absorber, which in conjunction with a side impact member, longitudinally arranged between the vehicle side and seat, withstands the intrusion thereof, and transmitted into the vehicle floor. In the second feature of invention, whiplash-related oscillations are dampened and lateral energy is substantially absorbed by the energy absorber. In the third feature, the energy absorber is designed with a progressive spring rate to achieve a larger working area and minimize the depth of intrusion. In the fourth feature, in order to save costs and avoid false deployments a front airbag is converted into a safety airbag which is inflated in the event of front and/or side collision. Owing to the features to withstand the intrusion thereof and to remove the passenger to the vehicle- centre in side collisions the deployment time can be prolonged. In the fifth feature, in order to save costs all the transversely-assembled energy absorbers of the front and successive seats are connected to a single longitudinally-assembled energy absorber.

Les airbags latéraux de la technique antérieure présentent, dans la pratique, les problèmes suivants: protection d'une seule partie du corps, valeurs d'accélération deux fois supérieures par rapport à l'airbag frontal, blessures par brûlures, augmentation des déclenchements intempestifs en raison des temps de gonflage très courts, coûts de fabrication élevés et rappels en usine coûteux pour contrôle du fonctionnement. L'invention vise à résoudre ces problèmes au moyen d'un système de remplacement d'airbag latéral (B1-B7) visant à accroître la fiabilité et les chances de survie, et à réduire les coûts, par l'utilisation de pièces absorbant l'énergie, déjà fabriquées à des milliards d'exemplaires, de systèmes d'amortissement qui font leurs preuves dans l'industrie automobile depuis plusieurs dizaines d'années, par exemple des ressorts, des corps élastiques et des amortisseurs; par un allongement du temps de déclenchement, par l'utilisation d'un airbag de sécurité gonflable (80) qui intercepte le buste après la projection du corps vers l'arrière; par l'exploitation de l'énergie de l'impact latéral pour la déformation des pièces et le déplacement du passager hors de la zone dangereuse, vers le milieu du véhicule au moyen d'un dispositif pivotant (1.70a, 1.72a, 1.71a, 1.72) pourvu d'un ressort à lames (11c3), lorsque l'énergie de l'impact latéral atteint la base du véhicule (6). Ce système réduit les forces FB et FD dépendant des accélérations b et <u>Ö</u>, auxquelles est exposé le passager.

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