Pre-folded airbag cushion with optional venting for out-of-position conditions
DC CAFCFirst Claim
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1. An airbag module, comprising:
- an inflatable airbag cushion having a cushion membrane;
a first closeable vent having a first vent aperture in the cushion membrane of the inflatable airbag cushion;
a second closeable vent having a second vent aperture in the cushion membrane of the inflatable airbag cushion; and
at least one cord anchored to the cushion membrane of the inflatable airbag cushion and having a first vent portion and a second vent portion,wherein the first closeable portion and the second closeable portion respectively engage the first closeable vent and the second closeable vent in a configuration such that, upon deployment of the inflatable airbag cushion with obstruction, the cord does not fully extend and the first closeable vent and the second closeable vent remain open, and upon deployment of the inflatable airbag cushion without obstruction, the cord extends and at least partially closes the first closeable vent and the second closeable vent;
wherein the cord is anchored to the cushion membrane at a region of the cushion membrane which is folded to have at least one fold, andwherein the fold is held in place by a releasable temporary holding feature.
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Accused Products
Abstract
An airbag cushion is disclosed for use in automotive protective systems. The airbag cushion includes at least one closeable vent for re-directing gas out of the cushion when an obstruction is encountered. The airbag cushion includes a fold for maintaining the cord in a slack condition.
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Citations
40 Claims
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1. An airbag module, comprising:
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an inflatable airbag cushion having a cushion membrane; a first closeable vent having a first vent aperture in the cushion membrane of the inflatable airbag cushion; a second closeable vent having a second vent aperture in the cushion membrane of the inflatable airbag cushion; and at least one cord anchored to the cushion membrane of the inflatable airbag cushion and having a first vent portion and a second vent portion, wherein the first closeable portion and the second closeable portion respectively engage the first closeable vent and the second closeable vent in a configuration such that, upon deployment of the inflatable airbag cushion with obstruction, the cord does not fully extend and the first closeable vent and the second closeable vent remain open, and upon deployment of the inflatable airbag cushion without obstruction, the cord extends and at least partially closes the first closeable vent and the second closeable vent; wherein the cord is anchored to the cushion membrane at a region of the cushion membrane which is folded to have at least one fold, and wherein the fold is held in place by a releasable temporary holding feature. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An airbag module, comprising:
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an inflatable airbag cushion having a cushion membrane; a first closeable vent having a first vent aperture in the cushion membrane of the inflatable airbag cushion; a second closeable vent having a second vent aperture in the cushion membrane of the inflatable airbag cushion; and at least one cord anchored to the cushion membrane of the inflatable airbag cushion and having a first vent portion and a second vent portion, wherein the first closeable portion and the second closeable portion respectively engage the first closeable vent and the second closeable vent in a configuration such that, upon deployment of the inflatable airbag cushion with obstruction, the cord does not fully extend and the first closeable vent and the second closeable vent remain open, and upon deployment of the inflatable airbag cushion without obstruction, the cord extends and at least partially closes the first closeable vent and the second closeable vent; wherein the cushion membrane is folded to have at least one fold held by stitching, and wherein the cord is anchored to the cushion membrane at a location corresponding with a base of the fold. - View Dependent Claims (8, 9, 10)
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11. An airbag module, comprising:
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an inflatable airbag cushion having a cushion membrane; at least one closeable vent; and a cord anchored to the cushion membrane of the inflatable airbag cushion and having a vent portion positioned at the closeable vent such that upon deployment of the inflatable airbag cushion with obstruction, the cord does not fully extend and the vent remains open, and upon deployment of the inflatable airbag cushion without obstruction, the cord extends and at least partially closes the vent; wherein the cord is anchored to the cushion membrane at a region of the cushion membrane which is folded to have at least one fold, and wherein the fold is held in place by a releasable temporary holding feature; and wherein the fold is located at a front portion of cushion membrane. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An airbag module, comprising:
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an inflatable airbag cushion having a cushion membrane; at least one closeable vent; and a cord anchored to the cushion membrane of the inflatable airbag cushion and having a vent portion positioned at the closeable vent such that upon deployment of the inflatable airbag cushion with obstruction, the cord does not fully extend and the vent remains open, and upon deployment of the inflatable airbag cushion without obstruction, the cord extends and at least partially closes the vent; wherein the cord is anchored to the cushion membrane at a region of the cushion membrane which is folded to have at least one fold, and wherein the fold is held in place by a releasable temporary holding feature; and wherein the releasable temporary holding feature is stitching. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. An airbag module, comprising:
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an inflatable airbag cushion having a cushion membrane; at least one closeable vent; and a cord anchored to the cushion membrane of the inflatable airbag cushion and having a vent portion positioned at the closeable vent such that upon deployment of the inflatable airbag cushion with obstruction, the cord does not fully extend and the vent remains open, and upon deployment of the inflatable airbag cushion without obstruction, the cord extends and at least partially closes the vent; wherein the cord is anchored to the cushion membrane at a region of the cushion membrane which is folded to have at least one fold, and wherein the fold is held in place by a releasable temporary holding feature; and wherein the releasable temporary holding feature prevents closure of the closeable vent during shipping or handling and ensure that the cord remains slack during initial deployment of the airbag module. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. An airbag module, comprising:
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an inflatable airbag cushion having a cushion membrane; at least one closeable vent; a cord anchored to the cushion membrane of the inflatable airbag cushion and having a vent portion positioned at the closeable vent such that upon deployment of the inflatable airbag cushion with obstruction, the cord does not fully extend and the vent remains open, and upon deployment of the inflatable airbag cushion without obstruction, the cord extends and at least partially closes the vent; and a diffuser configured to re-direct inflation gas to the closeable vent from an inflator such that the gas rapidly exits the inflatable airbag cushion via the closeable vent when deployment of the airbag is obstructed; wherein the cord is anchored to the cushion membrane at a region of the cushion membrane which is folded to have at least one fold, and wherein the fold is held in place by a releasable temporary holding feature. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification