| 摘要 |
<p>An air bag module (30) in a vehicle (12) includes an inflator (90) for generating gas to inflate an air bag (50). The air bag (50) has a first portion (53) adjacent the inflator (90) and operatively connected to the inflator (90) for receiving the inflator gas therein. The air bag (50) has a second portion (54) extending from the first portion (53) and spaced apart from the inflator (90) by the first portion (53). The second portion (54) is unidirectionally rolled to define a rolled portion. Prior to air bag inflation, the first portion (53) is stored atop the inflator (90) and the rolled portion (54) is stored atop the first portion (53). Preferably, the rolled second portion (54) forms a pinch point (62) between the first portion (53) and the second portion (54) such that the first portion (53) partially inflates prior to unrolling of the second portion (54). Preferably, the first portion (53) is folded in manner to inflate more readily than the rolled second portion (54) such that the first portion (53) inflates and forces the rolled second portion (54) outwardly away from the inflator (90) prior to unfolding of the rolled second portion (54).</p> |
