Delayed venting in a curtain airbag

摘要

An airbag, or inflatable curtain airbag assembly, can include one or more chambers and vents. The vents can be in fluid communication with one or more of the chambers. The vents can be configured to delay passage of inflation gas from an interior of the airbag into an interior chamber or to an exterior of the airbag upon deployment of the airbag. The vents can also be configured to transition from a closed configuration to an open configuration when an internal pressure of the airbag reaches a predetermined value.

主权项

1. An inflatable curtain airbag assembly comprising:
an inflatable curtain airbag having a longitudinal orientation, the inflatable curtain airbag comprising; a throat portion in fluid communication with an inflator; a throat liner in fluid communication with and disposed within at least a portion of the throat portion, and wherein the throat liner extends in the longitudinal orientation of the inflatable curtain airbag away from the throat portion; a first chamber in fluid communication with the throat liner comprising a plurality of inflatable cushion segments; and a venting panel defining a boundary of one of the inflatable cushion segments comprising at least one opening, wherein the at least one opening is retained in a closed configuration by at least one fold of a portion of the venting panel, wherein the fold is secured by a fastening mechanism, and wherein the opening is configured to transition from a closed configuration to an open configuration when a volume of inflation gas in the first chamber reaches a predetermined value.