| 摘要 |
<p>PURPOSE: To provide different rates of gas production depending on the severity of a collision, the weight of an occupant, etc., in a gas generator for inflating a vehicle inflatable restraint cushion. CONSTITUTION: A device is provided for increasing the surface area of the gas generant used in a vehicle safety air bag module. Depending on crash conditions, the surface area of the gas generant is increased by shattering gas generant wafers 80. One embodiment utilizes a squib 68 having a high brisant zone 102 which upon activation shatters the gas generant wafers 80. Alternatively, a dual function squib is used which can produce mechanical forces which force a breaking object to impact on the gas generant wafers 80 thereby shattering the wafers 80 and increasing the surface area of the gas generant.</p> |
