초록 ▼

An air bag for a side air bag device is folded and accommodated over a roof side rail portion on the peripheral edge of an opening in an interior side of a vehicle. The air bag is developed and expanded to cover the opening when an inflating gas flows in. In the air bag, the internal pressure of the

An air bag for a side air bag device is folded and accommodated over a roof side rail portion on the peripheral edge of an opening in an interior side of a vehicle. The air bag is developed and expanded to cover the opening when an inflating gas flows in. In the air bag, the internal pressure of the inflating gas at 3 secs after the start of inflow is maintained at 30% or more of the internal pressure at 500 msecs after the start of inflow. This air bag can maintain the high internal pressure for a long time.

대표청구항 ▼

[ What is claimed is:] [7.]7. An air bag for a side air bag device comprising:(a) an air bag body covering at least a portion of a window upon deployment, said air bag body having a bag portion with an expanding portion and a gas inlet portion;(b) a source of inflating gas operatively connected to t

[ What is claimed is:] [7.]7. An air bag for a side air bag device comprising:(a) an air bag body covering at least a portion of a window upon deployment, said air bag body having a bag portion with an expanding portion and a gas inlet portion;(b) a source of inflating gas operatively connected to the gas portion so that inflating gas flows into the bag portion;(c) an inner tube positioned within the gas inlet portion, said inner tube having first and second ends with the first end connected to the source of inflating gas, said second end being located adjacent to the expanding portion, and wherein said inner tube has an inner circumferential surface coated with a heat resistance enhancing layer;(d) wherein said air bag is folded and accommodated over a roof side rail adjacent a peripheral edge of the window;(e) wherein said air bag is developed and expanded down over the window when inflating gas flows in; and(f) wherein the internal pressure of the inflating gas at 3 sec. after the start of gas inflow is maintained at 30% or more of the internal pressure at 500 msec. after the start of gas inflow.