| 摘要 |
PROBLEM TO BE SOLVED: To provide an airbag having a function for controlling the expansion of a bag body while holding air tightness by reducing a stress concentration applied to a limit thread at deployment.SOLUTION: In a bag body having a limit thread for limiting expansion, the limit thread includes: a first thread line extensively arranged in the bag body from a non-expansion part to another non-expansion part; a second thread line which weaves a base cloth of one face of the expansion part of the bag body, is separated from the base cloth of the one face, hung to the first thread line, constitutes a woven tissue together with the first thread line, and is return-woven to the base cloth of the one face; and a third tread line which weaves a base cloth of the other face of the expansion part of the bag body, is separated from the base cloth of the other face, hung to the first thread line, constitutes a woven tissue together with the first thread line, and is return-woven to the base cloth of the other face. |
