Patent ID: 6575496
Filing Date: 2003-06-10
Classification: B60R

Abstract:
A cushion for an inflatable curtain module for protecting occupants of a vehicle, the cushion comprising:a top edge configured to be fastened to the vehicle; a bottom edge configured to be drawn toward the top edge in a compaction direction by a compaction process selected from the group consisting of rolling and folding; and a protection zone between the top edge and the bottom edge, the protection zone being configured to contain a pressurized gas, the protection zone having an interior seam having a length; wherein the interior seam is disposed at an angle with respect to the compaction direction such that overlap of the interior seam with itself is substantially avoided along at least half the length when the compaction process has been carried out; wherein the angle is not substantially less than half the inverse sine of the quantity consisting of a number of compaction cycles in the compaction process multiplied by two and by a thickness of the interior seam and divided by the length of the interior seam, the compaction cycles including folds and rolls.