Abstract: An airbag module case for use with a side-impact airbag module also including an airbag cushion containing an inflator assembly having two mounting projections extending through the airbag cushion. The airbag module case includes a lower shell and an upper shell for substantially containing the airbag cushion and the inflator assembly. A tear seam hinge joins the lower shell to the upper shell and allows the upper and the lower shells to open and receive the airbag cushion and the inflator assembly, and to close with an inflator seat of the bottom shell receiving the inflator assembly and airbag cushion and an inflator closure of the upper shell overlapping the inflator seat of the lower shell.

Abstract: An inflatable air bag cushion for use in a vehicle restraint system that reduces the load experienced on the peripheral seam of a driver or passenger air bag to reduce or prevent combing of the cushion fabric. A sacrificial stitched seam 26 is sewn inboard of the standard peripheral seam 20 on the cushion. Upon inflation, the sacrificial seam tears at a predetermined cushion pressure slightly lower than the maximum. The outer stitched seam, composed of a stronger thread, survives throughout the cushion deployment. The final load experienced by the outer stitched seam and adjacent fabric is reduced. As a result, lower strength fabrics may be utilized which will reduce overall cushion costs.