Delay orifice opening

摘要

An airbag apparatus for a vehicle including an airbag stored in a folded state in a portion of a vehicle body and an inflator that provides a gas for inflating the airbag. The airbag including a main chamber and a delay chamber. The main chamber operable to be inflated earlier than the delay chamber. The delay chamber including an opening through which the gas passes from the main chamber to the delay chamber; and the delay chamber further including a weakened portion having less strength than the opening.

主权项

1. An airbag apparatus for a vehicle, comprising:
an airbag stored in a folded state in a portion of a vehicle body; an inflator that provides a gas for inflating the airbag; the airbag including a main chamber, a first delay chamber, and a second delay chamber; the main chamber operable to be inflated earlier than the first delay chamber; the first delay chamber including a first opening through which the gas passes from the main chamber to the first delay chamber, the second delay chamber including a second opening through which the gas passes from the main chamber directly to the second delay chamber, the main chamber and the first delay chamber are divided by a first seam line except for at a portion of the airbag where the first opening is provided, and the first delay chamber and the second delay chamber are divided by a second seam line; and the first delay chamber further including a recess located a predetermined distance downstream from the first opening and having a shape configured to collapse, wherein the first delay chamber fully inflates prior to the first opening collapsing due to inflation, and a shape of the recess is approximately a triangle.