Passenger airbag with secondary chamber
First Claim
Patent Images
1. A vehicle airbag, comprising:
- a primary chamber;
a secondary chamber affixed to the primary chamber by a seam;
a passage between the primary chamber and the secondary chamber, wherein the passage is arranged to provide lateral fluid flow from the primary chamber to the secondary chamber with respect to a longitudinal vehicle axis; and
wherein the seam defines a closed shape, and joins a wall of the primary chamber to a wall of the secondary chamber;
wherein the seam includes at least a first side that is not at any edge of the secondary chamber and a second side that is at a first edge of the secondary chamber, whereby the first side of the seam defines an edge of a gap between the wall of the secondary chamber and the wall of the primary chamber.
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Abstract
A vehicle airbag comprises a primary chamber and a secondary chamber affixed to the primary chamber by a seam. A passage is defined between the primary chamber and the secondary chamber. The seam defines a closed shape, and an inner side of the seam is located between sides of the primary chamber, and is between sides of the secondary chamber.
71 Citations
20 Claims
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1. A vehicle airbag, comprising:
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a primary chamber; a secondary chamber affixed to the primary chamber by a seam; a passage between the primary chamber and the secondary chamber, wherein the passage is arranged to provide lateral fluid flow from the primary chamber to the secondary chamber with respect to a longitudinal vehicle axis; and wherein the seam defines a closed shape, and joins a wall of the primary chamber to a wall of the secondary chamber; wherein the seam includes at least a first side that is not at any edge of the secondary chamber and a second side that is at a first edge of the secondary chamber, whereby the first side of the seam defines an edge of a gap between the wall of the secondary chamber and the wall of the primary chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle airbag, comprising:
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a primary chamber; a secondary chamber affixed to the primary chamber by a seam; and a passage between the primary chamber and the secondary chamber; wherein a first portion of the seam is located at a portion of a perimeter of the secondary chamber and a second portion of the seam has at most a first end and a second end at the perimeter of the secondary chamber; wherein the seam includes at least a first side that is not at any edge of the secondary chamber and a second side that is at a first edge of the secondary chamber, whereby the first side of the seam defines an edge of a gap between the wall of the secondary chamber and the wall of the primary chamber; and wherein the secondary chamber has one of a length and a height greater than a corresponding length or height of the primary chamber. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A vehicle airbag, comprising:
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a primary chamber; a secondary chamber affixed to the primary chamber by a seam; a passage between the primary chamber and the secondary chamber, wherein the passage is arranged to provide lateral fluid flow from the primary chamber to the secondary chamber with respect to a longitudinal vehicle axis; and a one-way valve disposed in the passage, the valve being configured to allow gas to flow from the primary chamber to the secondary chamber, wherein an airbag controller is configured to open the valve upon detecting an oblique impact; wherein the seam defines a closed shape, and joins a wall of the primary chamber to a wall of the secondary chamber. - View Dependent Claims (18, 19, 20)
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Specification