Cushion break stitch pattern
First Claim
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1. An airbag cushion comprising:
- an airbag cushion wall enclosing an interior for inflation by gas from an inflator, said airbag cushion wall defining a throat for flow of gas from an inflator into the interior of the airbag cushion, said airbag cushion comprising an initial expansion section and a full expansion section, wherein the initial expansion section is available for contributing to an initial volume of the interior of the airbag cushion, wherein the full expansion section is an integral extension of the initial expansion section and is initially held in a folded configuration by at least one row of break stitches so that the full expansion section does not contribute to the initial volume of the interior of the airbag cushion but does contribute to the final volume capacity of the interior of the airbag cushion once sufficient pressure has been applied to the airbag cushion by the gas to break the break stitches.
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Abstract
Disclosed are embodiments of airbag cushion which deploys sequentially to have an initial volume to push an occupant away from an instrument panel and then a final volume.
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Citations
21 Claims
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1. An airbag cushion comprising:
an airbag cushion wall enclosing an interior for inflation by gas from an inflator, said airbag cushion wall defining a throat for flow of gas from an inflator into the interior of the airbag cushion, said airbag cushion comprising an initial expansion section and a full expansion section, wherein the initial expansion section is available for contributing to an initial volume of the interior of the airbag cushion, wherein the full expansion section is an integral extension of the initial expansion section and is initially held in a folded configuration by at least one row of break stitches so that the full expansion section does not contribute to the initial volume of the interior of the airbag cushion but does contribute to the final volume capacity of the interior of the airbag cushion once sufficient pressure has been applied to the airbag cushion by the gas to break the break stitches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An airbag cushion comprising:
an airbag cushion wall enclosing an interior for inflation by gas from an inflator, said airbag cushion wall defining a throat for flow of gas from an inflator into the interior of the airbag cushion, said airbag cushion comprising an initial expansion section and a full expansion section, wherein the initial expansion section is available for contributing to an initial volume of the interior of the airbag cushion, wherein the full expansion section is an integral extension of the initial expansion section and is initially held in a folded configuration by at least one row of break stitches so that the full expansion section does not contribute to the initial volume of the interior of the airbag cushion but does contribute to the final volume capacity of the interior of the airbag cushion once sufficient pressure has been applied to the airbag cushion by the gas to break the break stitches, wherein the initial expansion section and the full expansion section sequentially deploy in a manner such that the airbag cushion initially expands to each side of the occupant'"'"'s head and toward the occupant'"'"'s shoulders and then extends downward in front of the occupant'"'"'s chest. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An airbag cushion comprising:
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an airbag cushion wall enclosing an interior for inflation by gas from an inflator, said airbag cushion wall defining a throat for flow of gas from an inflator into the interior of the airbag cushion, said airbag cushion comprising an initial expansion section and a full expansion section, wherein the initial expansion section is above the full expansion section that once the airbag cushion is deployed, wherein the initial expansion section is available for contributing to an initial volume of the interior of the airbag cushion, wherein the full expansion section is an integral extension of the initial expansion section and is initially held in a folded configuration by at least one row of break stitches so that the full expansion section does not contribute to the initial volume of the interior of the airbag cushion but does contribute to the final volume capacity of the interior of the airbag cushion once sufficient pressure has been applied to the airbag cushion by the gas to break the break stitches, and a tether within the interior of the airbag cushion which has tether stitches so that the tether has an initial length and then an extended length after the stitches have been ruptured. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification