Dual chamber airbag
First Claim
1. An airbag cushion assembly, comprising:
- a first panel;
a second panel attached to the first panel; and
a third panel disposed between the first and second panels, wherein the first and third panels define a first chamber and the second and third panels define a second chamber, wherein the third panel is attached to the second panel at a plurality of attachment regions such that, upon inflation of the second chamber, the second chamber has a low profile region corresponding to the location of the attachment regions.
1 Assignment
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Accused Products
Abstract
A dual chamber airbag cushion is disclosed for use in automotive protective systems. The airbag cushion comprises a first inflatable chamber and a second inflatable chamber disposed adjacent to the first inflatable chamber. In one embodiment, two opposing surfaces defining the second inflatable chamber are attached to one another at a plurality of attachment regions such that, upon inflation of the second chamber, the second chamber has a low profile region corresponding to the location of the attachment regions. An airbag cushion with dual chambers, each of which is inflated to a different pressure upon deployment, is thereby created.
40 Citations
28 Claims
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1. An airbag cushion assembly, comprising:
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a first panel;
a second panel attached to the first panel; and
a third panel disposed between the first and second panels, wherein the first and third panels define a first chamber and the second and third panels define a second chamber, wherein the third panel is attached to the second panel at a plurality of attachment regions such that, upon inflation of the second chamber, the second chamber has a low profile region corresponding to the location of the attachment regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An airbag cushion assembly, comprising:
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a first inflatable chamber; and
a second inflatable chamber positioned adjacent to the first inflatable chamber, wherein the second inflatable chamber is configured to receive an inflator, wherein two opposing surfaces defining the second inflatable chamber are attached to one another at a plurality of attachment regions such that, upon inflation of the second chamber, the second chamber has a low profile region corresponding to the location of the attachment regions, and wherein the second inflatable chamber has at least one opening formed therein to allow fluid communication between the first and second chambers such that, upon deployment of the inflator, the second inflatable chamber is inflated to a pressure and the first inflatable chamber is inflated to a pressure, wherein the second chamber pressure is greater than the first chamber pressure. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A side-impact airbag cushion assembly, comprising:
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a first panel;
a second panel attached to the first panel; and
a third panel disposed between the first and second panels, wherein the first and third panels define a first chamber and the second and third panels define a second chamber, wherein the third panel is attached to the second panel at a plurality of attachment lines such that, upon inflation of the second chamber, the second chamber has a low profile region corresponding to the location of the attachment lines, wherein the low profile region is configured to be positioned at approximately the same height as an occupant'"'"'s rib area upon deployment of the airbag, wherein the third panel has at least one opening formed therein to allow fluid communication between the first and second chambers, wherein the second chamber is configured to be a high pressure chamber, wherein the first chamber is configured to be a low pressure chamber, and wherein the high pressure chamber serves as a support structure to facilitate stable deployment of the low pressure chamber. - View Dependent Claims (20, 21)
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22. A side-impact airbag cushion assembly, comprising:
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a first panel;
a second panel attached to the first panel; and
a third panel disposed between the first and second panels, wherein the first and third panels define a first chamber and the second and third panels define a second chamber, wherein the first chamber and the second chamber each extend from substantially the top of the airbag cushion to substantially the bottom of the airbag cushion, wherein the airbag cushion is configured such that the second chamber receives an inflator and is adapted to be inflated to a greater pressure than the first chamber, and wherein the second chamber is adapted to inflate adjacent to a door and the first chamber is adapted to inflate adjacent to an occupant. - View Dependent Claims (23, 24, 25, 26)
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27. A side-impact airbag cushion assembly, comprising:
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a high pressure outboard chamber; and
a low pressure inboard chamber positioned adjacent to the high pressure outboard chamber, wherein the airbag cushion assembly is configured such that, upon inflation, the high pressure outboard chamber occupies the majority of the volume of the airbag adjacent to an occupant'"'"'s pelvis and shoulder areas, wherein, upon inflation, the low pressure inboard chamber occupies the majority of the volume of the airbag adjacent to an occupant'"'"'s rib area, and wherein the high pressure outboard chamber serves as a support structure to facilitate stable deployment of the low pressure inboard chamber.
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28. A method for protecting an occupant in a vehicle with a side-impact airbag cushion assembly, comprising:
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inflating a first chamber to a first pressure; and
inflating a second chamber to a second pressure, wherein the second chamber is adjacent to the first chamber, wherein the first chamber and the second chamber each extend from substantially the top of the airbag cushion to substantially the bottom of the airbag cushion, and wherein the first pressure is greater than the second pressure.
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Specification