Method for manufacturing an airbag cushion
AssigneeMilliken & Company
InventorsRamesh Keshavaraj, Michael D. Hurst, William J. Martin
Life of this patent
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Abstract
An airbag cushion having a novel seam structure including either a tri-stitch fold-over seam structure or a double-stitch fold-over seam structure. The novel seam structure allows airbag cushions to be manufactured by using low tenacity yarns, preferably in the range of between about 40 cN/tex and about 65 cN/tex.
Claims17
A method for manufacturing an airbag cushion, said cushion being adapted for restraining an occupant in the interior of a transportation vehicle during a collision, said method comprising the steps of:
- (a) providing first and second fabric blanks;
- (b) folding said first fabric blank upon itself to form a folded portion;
- (c) stitching said first and second fabric blanks together at said folded portion of said first fabric blank, wherein said first and second fabric blanks are joined by at least one first stitch, wherein said first stitch connects said second fabric blank to said first fabric blank by proceeding through said first fabric blank at a minimum of two different locations upon said first fabric blank, wherein said first and second fabric blanks are joined to form a tri-stitch fold-over seam structure.
A method for manufacturing an airbag cushion adapted for use upon an interior occupant of a transportation vehicle, said method comprising the steps of:
- providing first and second fabric blanks;
- folding said first fabric blank to form a folded portion of said first fabric blank;
- applying said folded portion of said first fabric blank upon said second fabric blank;
- stitching together said first and second fabric blanks in at least two stitch locations to form a seam, said seam
- comprising a double-stitch fold-over seam structure.
Dependencies are inferred from the claim text.