Patent attributes
A first panel 12 includes: a fold-back part 12c formed by folding back the first panel along an edge part 12a of the first panel; and a seam allowance part 12d laid on top of the fold-back part 12c, the second panel 13 is sewed to the first panel with a first chain stitch 17 while being laid on top of the fold-back part 12c, and a chain part 17a of the first chain stitch 17 is located between the fold-back part 12c and the seam allowance part 12d. Thus, because the chain part 17a of the first chain stitch 17 is covered by the seam allowance part 12d of the first panel 12, the chain part 17a of the first chain stitch 17 is prevented from rubbing against other members during deployment of the airbag 11, whereby the reliability of a sewing section 14 can be enhanced.