Abstract: A vehicle occupant safety apparatus (10) includes an inflatable vehicle occupant protection device (20) and a container (32) for storing gas (36) under pressure. The container (32) has an outlet (38). The apparatus (10) includes a mechanism (42) for opening the container (32) to release the gas (36) to flow from the outlet (38) at supersonic speed. The apparatus (10) also includes a pyrotechnic material (70) which is ignitable to generate gas for helping to inflate the inflatable device (20). The pyrotechnic material (70) is ignitable in response to being impacted by the gas (36) flowing from the outlet (38) at supersonic speed. The apparatus (10) further includes a conduit (50) directing at least a first portion of the gas (36) flowing from the container (32) to the pyrotechnic material (70) to ignite the pyrotechnic material.

Abstract: An apparatus (10) includes a seat frame (20), an inflatable vehicle occupant protection device (18), and a reinforcing assembly (80). The frame (20) has a bottom portion (24) and a back portion (22) which is pivotal relative to the bottom portion (24). The protection device (18) is mounted on the back portion (22) of the frame (20) for rearward deployment from the back portion (22). The reinforcing assembly (80) includes a rigid brace (82) with an upper end portion (86) adjacent to the back portion (22) of the frame (20), a lower end portion (88) adjacent to the bottom portion (24) of the frame (20), and an intermediate portion (90) joining the upper and lower end portions (86) and (88). A fastener structure (92) fixes one portion (22 or 24) of the frame (20) permanently to one end portion (86 or 88) of the brace (82). A locking device (84) interlocks the other portion (24 or 22) of the frame (20) releasably with the other end portion (88 or 86) of the brace (82).