Patent ID: 8052168
Filing Date: 2011-11-08
Classification: B60R

Abstract:
1. A method of forming a multi-chambered side airbag, comprising: providing a first fabric panel, a second fabric panel, and a separator panel; coupling a first side edge of the separator panel to the first fabric panel and a second side edge of the separator panel to the second fabric panel; coupling the first fabric panel to the second fabric panel by sewing a seam around at least a portion of a periphery of the fabric panels; and sewing the separator panel to the first and second fabric panels in a flat state so that the first and second fabric panels and the separator panel lie flat against one another after coupling and before inflation of the airbag, wherein the coupling of the first fabric panel and second fabric panel together occurs after coupling the separator panel to the first and second fabric panels, wherein the side airbag includes an upper airbag chamber and a lower airbag chamber, wherein the lower chamber includes a substantially vertical cylindrical shape in the inflated airbag, wherein the substantially vertical cylindrical shape has a diameter of at least 100 mm for a majority of a height of the cylindrical shape, wherein the substantially vertical cylindrical shape extends vertically upward from the lower chamber to at least a substantial midpoint of the airbag along a vertical direction of the airbag.