| 摘要 |
PROBLEM TO BE SOLVED: To provide an air-bag which does not have defects in sewing, such as stitch skipping, nor local parts weak in sewing strength, and has the entirely uniform sewing strength. SOLUTION: The air-bag formed by sewing a plurality of fabric parts is characterized in that the number of fabric layers at continuous sewing portions is not increased with respect to adjacent portions, or if the number is increased, the increased number is 3 or less. The manufacturing method of the air-bag sews by providing notches in portions being layered portions of the fabric body and/or a reinforcing fabric. COPYRIGHT: (C)2009,JPO&INPIT
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