| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an air bag capable of maintaining airtightness and strength for inflation and expansion at short time and releasing inner pressure.SOLUTION: An air bag 10 comprises a bag part 11 which inflates by gas inflow. The bag part 11 is formed by overlapping bilayer fabric layers 12 (12a and 12b) so that they separate each other freely and is surrounded with a closing part 13. In the fabric layers 12 of the bag part 11, a fabric tissue in a separated area 14 which separates from the closing part 13 by a predetermined distance has higher permeability than that of a fabric tissue of a surrounding 15 of the separated area 14.</p> |
