公开(公告)号：US5997037A

公开(公告)日：1999-12-07

申请号：US934863

申请日：1997-09-22

申请人： Bruce R. Hill ,  Neftali Cortes

发明人： Bruce R. Hill ,  Neftali Cortes

IPC分类号： B60R21/16 ,  B60R21/201 ,  B60R21/233 ,  B60R21/2338 ,  B60R21/2342

CPC分类号： B60R21/233 ,  B60R21/201 ,  B60R21/2338 ,  B60R2021/23382 ,  B60R21/2342

摘要： An air bag (30) has a base portion (40) and has a body portion (42) connected with the base portion and inflatable in a direction away from the base portion into an inflated condition. The air bag (30) includes first and second tethers (60, 70) which are sewn between the base portion (40) of the air bag and the body portion (42) of the air bag. The first tether (60) has a predetermined weakened portion (100 or 102). The second tether (70) has substantially higher elongation than the first tether (60). The second tether (70) has an effective length which is at least about the same as the effective length of the first tether (60). The air bag (30) has a partially inflated condition in which the first tether (60) is extended to its effective length and resist movements of the body portion (42) of the air bag away from the base portion (40). The first tether (60) is rupturable at the predetermined weakened portion (100 or 102) under the force of the inflating air bag (30) to enable movement of the air bag from the partially inflated condition to a fully inflated condition. The second tether (70) stretches during movement of the air bag (30) from the partially inflated condition to the fully inflated condition.

摘要翻译： 气囊（30）具有基部（40），并且具有与基部连接的主体部分（42），并且在远离基部的方向上充气成充气状态。 气囊（30）包括缝合在安全气囊的基部（40）与气囊的主体部分（42）之间的第一和第二系绳（60,70）。 第一系绳（60）具有预定的弱化部分（100或102）。 第二系带（70）具有比第一系绳（60）显着更高的伸长率。 第二系带（70）具有与第一系绳（60）的有效长度至少大致相同的有效长度。 气囊（30）具有部分膨胀的状态，其中第一系绳（60）延伸到其有效长度并且阻止气囊的主体部分（42）远离基部（40）的运动。 在充气气囊（30）的作用力下，第一系绳（60）在预定的弱化部分（100或102）处是可破裂的，以使气囊能够从部分充气状态移动到完全充气状态。 第二系绳（70）在气囊（30）从部分充气状态运动到完全充气状态时伸展。