Apparatus for deploying an airbag through a hard panel

Details Apparatus for deploying an airbag through a hard panel Apparatus for deploying an airbag through a hard panel

B - Operations, Transporting

60

R

B60R 21/20 (2006.01)

Patent

CA 2293402

An apparatus for deploying an airbag (24) through an automotive dash panel (12) includes an airbag door (16) integrally formed in the panel (12) and defined by a frangible edge (18) of reduced cross section. A dispenser (20) supports the air bag (24) behind the door (16). A metal reaction plate (28) is positioned between the air bag (24) and the door (16). When the air bag (24) inflates it forces the reaction plate (28) to bend around a hinge line (36). As the reaction plate (28) rotates it concentrates inflation force along a lower portion of the frangible door edge (18). At least one tether (50) limits how far the door (16) can travel.

L'invention concerne un appareil permettant le déploiement d'un coussin gonflable de sécurité (24) à travers un tableau de bord (12) de véhicule. Ledit appareil comprend une porte (16) à coussin gonflable de sécurité solidaire du tableau de bord (12) et définie par un bord frangible (18) de section réduite. Un dispositif de propulsion (20) porte le coussin gonflable de sécurité (24) derrière la porte (16). Une plaque de réaction métallique (28) est disposée entre le coussin gonflable de sécurité (24) et la porte (16). Lorsque le coussin gonflable de sécurité (24) se gonfle, il contraint la plaque de réaction (28) à se plier le long d'une ligne d'articulation (36). A mesure que la plaque de réaction (28) tourne, elle concentre la force de gonflage le long d'une partie inférieure du bord (18) de porte frangible . Une fixation (50) au moins limite la portée de la porte (16).

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