Curtain airbags with isolated chambers and construction methods

摘要

An inflatable curtain airbag, or airbag assembly, can include a plurality of inflatable cushion segments that are able to selectively fluidly communicate with an inflation gas delivery channel. The inflatable curtain airbag, or airbag assembly, can further include a valving panel that has a separate valving portion associated with each inflatable cushion segment. Each valving portion can allow fluid communication between the inflatable cushion segment and the inflation gas delivery channel when in an open configuration and can prevent fluid communication between the inflatable cushion segment and the inflation gas delivery channel when in a closed configuration.

主权项

1. An inflatable curtain airbag assembly comprising:
an inflation gas delivery channel elongated in a longitudinal direction; a plurality of inflatable cushion segments coupled to the inflation gas delivery channel, the cushion segments comprising an inside vehicle facing side and an outside vehicle facing side; and a valving panel disposed within one or more of the plurality of the inflatable cushion segments between the inside vehicle facing side of the cushion segments and the outside vehicle facing side of the cushion segments, the valving panel elongated in the longitudinal direction and comprising:
a first end affixed to an affixed side, the affixed side selected from one of the inside vehicle facing side or the outside vehicle facing side, anda second end at least partially unaffixed to an unaffixed side of a cushion segment, the unaffixed side selected from one of the inside vehicle facing side or the outside vehicle facing side; a valving channel formed between the second end of the valving panel and the unaffixed side of the cushion segment into at least one of the plurality of inflatable cushion segments, the second end of the valving panel that is at least partially unaffixed separating from the unaffixed side when the valving channel is in an open configuration, the second end of the valving panel that is at least partially unaffixed pressing against the unaffixed side when the valving channel is in a closed configuration; wherein the valving panel is configured to transition the valving channel from the open configuration to the closed configuration, wherein the valving channel permits inflation gas to move from the inflation gas delivery channel into one of the plurality of inflatable cushion segments when the valving channel is in the open configuration, and wherein the valving channel prevents inflation gas from moving from said one of the inflatable cushion segments into the inflation gas delivery channel when the valving channel is in the closed configuration.