Cushion venting design for out of position occupant protection
First Claim
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1. An airbag cushion comprising:
- an airbag cushion body having a cushion vent formed therein;
a vent cover attached to the body; and
a tieback structure adapted to hold the vent cover in a constrained state and to release the vent cover into an unconstrained state to at least partially cover the cushion vent upon sufficient expansion of the airbag cushion body;
wherein the tieback structure and the airbag cushion body are adapted to prevent the vent cover from being released from the constrained state or to enable the vent cover to be released into the unconstrained state depending on an occupant'"'"'s position adjacent to the airbag cushion body when the airbag is deployed;
wherein the constrained state of the vent cover is achieved by either holding the vent cover away from the cushion vent opening via the tieback structure or by holding the vent cover via the tieback structure such that a smaller portion of the cushion vent is covered than is covered in the unconstrained state of the vent cover.
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Abstract
An airbag cushion venting system is disclosed. The system comprises an airbag cushion body having a cushion vent formed therein. A vent cover is attached to the body such that the vent cover at least partially covers the cushion vent in its unconstrained state. A tieback structure holds the vent cover either away from the cushion vent opening or in a position such that a smaller portion of the cushion vent is covered than is covered in the cushion vent'"'"'s unconstrained state and is adapted to release the vent cover once the body has expanded a sufficient amount to enable the vent cover to at least partially cover the cushion vent.
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Citations
27 Claims
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1. An airbag cushion comprising:
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an airbag cushion body having a cushion vent formed therein; a vent cover attached to the body; and a tieback structure adapted to hold the vent cover in a constrained state and to release the vent cover into an unconstrained state to at least partially cover the cushion vent upon sufficient expansion of the airbag cushion body; wherein the tieback structure and the airbag cushion body are adapted to prevent the vent cover from being released from the constrained state or to enable the vent cover to be released into the unconstrained state depending on an occupant'"'"'s position adjacent to the airbag cushion body when the airbag is deployed; wherein the constrained state of the vent cover is achieved by either holding the vent cover away from the cushion vent opening via the tieback structure or by holding the vent cover via the tieback structure such that a smaller portion of the cushion vent is covered than is covered in the unconstrained state of the vent cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An airbag cushion comprising:
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an airbag cushion body having a cushion vent formed therein; a vent cover attached to the body; a tieback structure adapted to hold the vent cover in a constrained state and to release the vent cover into an unconstrained state to at least partially cover the cushion vent upon sufficient expansion of the airbag cushion body; wherein the tieback structure and the airbag cushion body are adapted to prevent the vent cover from being released from the constrained state or to enable the vent cover to be released into the unconstrained state depending on an occupant'"'"'s position adjacent to the airbag cushion body when the airbag is deployed; wherein the constrained state of the vent cover is achieved by either holding the vent cover away from the cushion vent opening via the tieback structure or by holding the vent cover via the tieback structure such that a smaller portion of the cushion vent is covered than is covered in the unconstrained state of the vent cover; and a release cord extending from the tieback structure, wherein the release cord and tieback structure are configured such that exceeding a particular level of tension on the release cord releases the vent cover to enable the vent cover to at least partially cover the cushion vent. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An airbag cushion comprising:
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an airbag cushion body having a cushion vent formed therein; a vent cover attached to the body such that the vent cover at least partially covers the cushion vent in the vent cover'"'"'s unconstrained state; and tieback means for holding the vent cover either away from the cushion vent opening or in a position such that a smaller portion of the cushion vent is covered than is covered in the cushion vent'"'"'s unconstrained state and for releasing the vent cover once the body has expanded a sufficient amount to enable the vent cover to at least partially cover the cushion vent. - View Dependent Claims (27)
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Specification