Patent ID: 9522645
Filing Date: 2016-12-20
CPC Classification: B29C,B29L,B60R

Claim Text:
1. An active bolster for mounting at an interior trim surface of an automotive vehicle, comprising: a plastic-molded, expandable bladder wall having concentric pleats terminating with a skirt, wherein the bladder wall includes a bilateral welding flange integrally extending from the skirt; and a plastic-molded trim wall overlying the bladder wall, wherein the bilateral welding flange forms a hot weld with the trim wall to provide an inflatable cavity for receiving an inflation gas during an impact event; wherein the bilateral welding flange includes a plate member molded to extend radially outward from the skirt and a neck member molded to extend substantially parallel with the skirt, and wherein the hot weld deflects the neck member to extend radially inward from the skirt so that the neck member is exposed to the inflatable cavity whereby a pressure from the inflation gas pushes the neck member against the trim wall.