| 摘要 |
An apparatus (10) includes an inflator structure (12), a rupturable closure member (48), and an initiator assembly (14). The inflator structure (12) defines a chamber (15) storing inflation fluid (16) at an elevated storage pressure. The closure member (48) is fixed and sealed to the inflator structure (12) to block the inflation fluid from flowing outward from the chamber (15), and is subjected to the storage pressure. The initiator assembly (14) includes pyrotechnic material (88) and a support structure (82, 84) which is mounted on the inflator structure. The support structure (82, 84) adjoins the closure member (48) in a load bearing relationship so as to transmit a storage pressure force from the closure member (48) to the inflator structure (12). When the pyrotechnic material (88) is ignited, it produces combustion products that rupture the support structure (82, 84). The closure member (48) has a specified strength which is low enough for the closure member (48) to be ruptured by the storage pressure independently of the combustion products when the support structure (82, 84) has been ruptured by the combustion products.
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