초록 ▼

An apparatus (10) for inflating an inflatable vehicle occupant protection device includes a container (12) having a chamber (14), and inflation fluid (16) under pressure in the chamber for inflating the inflatable device. The apparatus (10) includes an outlet opening (70) in the container (12) for d

An apparatus (10) for inflating an inflatable vehicle occupant protection device includes a container (12) having a chamber (14), and inflation fluid (16) under pressure in the chamber for inflating the inflatable device. The apparatus (10) includes an outlet opening (70) in the container (12) for directing inflation fluid (16) from the chamber (14) to the inflatable device. The apparatus (10) also includes an initiator (110) for, when ignited, producing combustion products (130). The apparatus (10) further includes a support member (30) for supporting the initiator means (110) adjacent to the chamber (14). An inlet opening (58) in the container (12) spaced apart from the outlet opening (70) directs combustion products (130) from the initiator (110) into the chamber (14). The apparatus (10) includes a single, one-piece burst disc (80) having a first portion (82) blocking the inlet opening (58) and a second portion (90) blocking the outlet opening (70). The first portion (82) of the burst disc (80) ruptures upon ignition of the initiator (110). The second portion (90) of the burst disc (80) ruptures after the rupturing of the first portion (82) to enable flow of inflation fluid (16) from the chamber (14) through the outlet opening (70) to the inflatable device.

대표청구항 ▼

[ Having described the invention, we claim:] [28.] A burst disc for use in an apparatus for inflating an inflatable vehicle occupant protection device, the apparatus including a container having a chamber, a source of inflation fluid under pressure in the chamber for inflating the inflatable device,

[ Having described the invention, we claim:] [28.] A burst disc for use in an apparatus for inflating an inflatable vehicle occupant protection device, the apparatus including a container having a chamber, a source of inflation fluid under pressure in the chamber for inflating the inflatable device, an annular first opening in the container for directing inflation fluid from the chamber to the inflatable device, and a circular second opening in the container and disposed radially inward of the first opening;said burst disc comprising a single, one-piece burst disc having a first rupturable portion for covering the second opening and having a second rupturable portion for covering the first opening;said burst disc having a first plurality of score lines consisting of a single pair of score lines arranged in a cruciform configuration and defining said first rupturable portion of said burst disc;said burst disc having a second plurality of score lines defining said second rupturable portion of said burst disc, said second plurality of score lines comprising a circular score line and a plurality of radial score lines which are spaced apart around said circular score line and which extend radially outward from said circular score line.