Thermoplastic air bag cover having a membrane switch

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/20 (2006.01) B60K 37/06 (2006.01) B60Q 5/00 (2006.01)

Patent

CA 2222931

A relatively flexible thermoplastic air bag cover (10) is provided including a front panel (12) wherein a curved border area (22) about a switch location area (20) of the front panel gradually and continuously decreases in thickness. This feature enhances actuation of a membrane-type switch (24) which lies behind a rear inner surface (16) of the front panel (12) in the switch location area (20). This feature allows the switch to be activated in a switch activation area which includes all of the switch location area (20) and a portion of the border area (22). This feature also allows the front panel (12) to be properly molded so that the front panel has a class-A surface on its front outer surface.

Cette invention concerne un capot d'air-bag (10) thermoplastique relativement flexible et comprenant un panneau avant (12). Une zone courbe périphérique (22) entoure une zone (20) du panneau avant où est situé le commutateur, et possède une épaisseur qui décroît graduellement et de manière continue. Cette caractéristique permet d'améliorer l'actionnement d'un commutateur de type membrane (24) situé derrière une surface interne arrière (16) du panneau avant (12) dans la zone (20) où se trouve le commutateur. Cette caractéristique permet également d'activer le commutateur dans une zone d'activation du commutateur qui englobe toute la zone (20) où se trouve le commutateur et une partie de la zone périphérique (22). Cette caractéristique permet enfin d'effectuer un moulage adéquat du panneau avant (12), de manière à ce que celui-ci possède une surface externe avant de classe A.

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