ACTIVE BOLSTER VENT DISTRIBUTION FOR STRESS AND LOAD MANAGEMENT.

摘要

An active bolster mounts at an interior trim surface of a passenger compartment in an automotive vehicle. A plastic-molded front wall deploys in a deployment direction toward a passenger in the passenger compartment. A plastic-molded bladder member is joined along an outer perimeter with the front wall by a hot weld seam to form an inflatable bladder. The bladder member includes at least one substantially circumferential pleated baffle. An inflator couples an inflation gas into the inflatable bladder in response to a crash event of the vehicle. The pleated baffle forms a plurality of at least five vent openings including at least one stress relief vent juxtaposed to a peak stress region of the hot weld seam and a plurality of tuning vents which are concentrated at a lowest restraint-force region of the inflatable bladder.