Dual chamber airbag with improved assembly features
First Claim
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1. A method for making a dual chamber airbag with an integral vented panel for allowing inflation gas to communicate therethrough, comprising the steps of:
- forming a first airbag piece having a first surface, a second surface, and an outer perimeter;
forming a second airbag piece having a first surface, a second surface, and an outer perimeter;
forming a first vent panel from a portion of said first airbag piece by folding a portion of said second surface of said first airbag piece upon itself;
joining said airbag pieces around substantially all of their outer perimeters, andjoining said first vent panel of said first airbag piece to said second airbag piece and turning said airbag pieces inside out to form an airbag having an integral vented panel formed inside said airbag, said integral vented panel separating said airbag into an upper chamber and a lower chamber such that inflation gas is allowed to communicate between said upper and lower chambers.
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Abstract
A dual chamber airbag and method for making a dual chamber side impact airbag with an integral vented panel. A partial vent panel is formed from a section in each airbag piece such that the to partial panels meet as the airbag pieces are assembled to make the airbag. The two panels are subsequently sewn together, thereby forming an integral vented panel separating an upper and lower chamber within the airbag.
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Citations
18 Claims
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1. A method for making a dual chamber airbag with an integral vented panel for allowing inflation gas to communicate therethrough, comprising the steps of:
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forming a first airbag piece having a first surface, a second surface, and an outer perimeter; forming a second airbag piece having a first surface, a second surface, and an outer perimeter; forming a first vent panel from a portion of said first airbag piece by folding a portion of said second surface of said first airbag piece upon itself; joining said airbag pieces around substantially all of their outer perimeters, and joining said first vent panel of said first airbag piece to said second airbag piece and turning said airbag pieces inside out to form an airbag having an integral vented panel formed inside said airbag, said integral vented panel separating said airbag into an upper chamber and a lower chamber such that inflation gas is allowed to communicate between said upper and lower chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A dual chamber airbag for use in protecting an occupant of a vehicle during a side impact collision, said airbag comprising:
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a first airbag piece having a perimeter; a second airbag piece having a perimeter and being joined to said first airbag piece around substantially all of said perimeters to form an airbag, said airbag having an inside surface and an outside surface; a vented panel separating said airbag into an upper inflatable chamber and a lower inflatable chamber, wherein a portion of said vented panel is integral with at least one of said pieces, said airbag being made from two continuous pieces of fabric; wherein said vented panel is formed by first and second vent sections of said first and second airbag pieces, respectively, said first and second vent sections each being folded along a centerline thereof and having an upper border portion sewn to a lower border portion to form first and second vent panel portions, said first and second vent panel portions being sewn together generally along said centerlines to form said vented panel, said vented panel including at least one aperture therethrough communicating between said upper inflatable chamber and said lower inflatable chamber. - View Dependent Claims (14, 15, 16)
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17. A dual chamber airbag for use in protecting an occupant of a vehicle during a side impact collision, said airbag comprising:
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a first airbag piece having a perimeter; a second airbag piece having a perimeter and being joined to said first airbag piece around substantially all of said perimeters to form an airbag, said airbag having an inside surface and an outside surface; a vented panel separating said airbag into an upper inflatable chamber and a lower inflatable chamber, wherein a portion of said vented panel is integral with at least one of said pieces, said airbag being made from two continuous pieces of fabric; and wherein the entirety of said vented panel is integral with said first airbag piece, said vented panel being joined directly to said second airbag piece to separate said upper and lower chambers. - View Dependent Claims (18)
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Specification