| 摘要 |
Three apex portions of a triangular air bag 32 are folded toward a central portion of the air bag, respectively, so that the respective apex portions and a retainer are coupled together by a restricting member 39 , and thereafter, the air bag 32 is folded up into an appropriate shape. In an earlier stage of deployment of the air bag 32 , the inflation of the air bag 32 to its maximum capacity is restricted by the restricting member 39 , whereby the air bag 32 is allowed to inflate quickly to a capacity which is smaller than its maximum capacity, thereby making it possible to get the air bag 32 ready for restraining an occupant. In a later stage of deployment of the air bag 32 that occurs thereafter, when an internal pressure of the air bag 32 reaches or exceeds a predetermined value, the restricting member 39 breaks or extends.
|
