An active bolster includes a plastic trim wall that deploys toward a passenger compartment and a plastic-molded bladder member joined with the trim wall by a hot weld seam to form an inflatable bladder. The bladder member includes at least one substantially circumferential pleat for unfolding in response to an inflation gas. A reaction member is joined to a central region of the bladder member to provide a reaction surface. The pleat has a peak disposed proximate to the reaction member and an outer band between the peak and the weld seam at least a portion of which extends perpendicularly to the reaction member. A buffer zone is formed circumjacent the outer band between the trim wall and the reaction member. The pleat has a vent opening formed in the outer band providing an unobstructed path for inflation gas from the inflatable bladder to the buffer zone.
Active bolster with directional vent into concealed buffer zone
2016-09-13
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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