| 摘要 |
PROBLEM TO BE SOLVED: To compactify an air bag, and to reduce its weight and its manufacturing cost by protecting only a portion easily affected by heat and force of gas using a protection ground fabric. SOLUTION: An inside of this air bag 1 is partitioned into the first isolated chamber 31 and the second isolated chamber 32 by an intermediate ground fabric 23. A gas introducing hole 34 is provided in the first chamber 31 and a gas discharge hole 37 is provided in the second chamber 32. The intermediate ground fabric 23 is connected to the first ground fabric 21 by first connecting parts 51 provided in four positions, and the first chamber 31 is developed to get flat. Protection ground fabrics 25, 26 for covering the vicinity of the gas introducing hole 34 are provided inside the first chamber 31. Extended parts 25b, 26b provided in the fabrics 25, 26 are seamed integrally with the first respective connecting parts 51. The fellow protection ground fabrics 25, 26 are connected with second connecting parts 52 to be located in a gas introducing hole 34 side of the first connecting parts 51. The first connecting parts 51 are protected from heat of gas by the second connecting parts 52.
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