Door mounted airbag assembly with concave surface
First Claim
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1. An airbag assembly, comprising:
- an airbag including folds, each fold having an apex and limbs, the limbs of at least one of the folds extending from the apex to limbs of adjacent folds; and
a fastener fixed to the folds and releasably connecting the folds to each other, the fastener being configured to rupture when the airbag is inflated to a threshold pressure;
the airbag being initially expandable in a cross-vehicle direction in a first stage of inflation to a pressure below the threshold pressure, the fastener and the folds in the first stage of inflation moving in the cross-vehicle direction to an inflated position with the fastener fixed to the folds and the folds stacked in a vehicle-rearward direction, and the airbag being subsequently expandable in a vehicle-rearward direction with the fastener ruptured during inflation to a pressure above the threshold pressure, the vehicle-rearward direction being transverse to the cross-vehicle direction; and
the airbag having a periphery and the folds extend continuously around the periphery encircling a vehicle-rearward panel that extends to the folds along the entire periphery in the first stage of inflation.
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Abstract
An airbag includes folds with each fold having an apex and limbs. The limbs extend from the apex to the limbs of an adjacent fold. A fastener is fixed to the folds and releasably connects the folds to each other.
16 Citations
16 Claims
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1. An airbag assembly, comprising:
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an airbag including folds, each fold having an apex and limbs, the limbs of at least one of the folds extending from the apex to limbs of adjacent folds; and a fastener fixed to the folds and releasably connecting the folds to each other, the fastener being configured to rupture when the airbag is inflated to a threshold pressure; the airbag being initially expandable in a cross-vehicle direction in a first stage of inflation to a pressure below the threshold pressure, the fastener and the folds in the first stage of inflation moving in the cross-vehicle direction to an inflated position with the fastener fixed to the folds and the folds stacked in a vehicle-rearward direction, and the airbag being subsequently expandable in a vehicle-rearward direction with the fastener ruptured during inflation to a pressure above the threshold pressure, the vehicle-rearward direction being transverse to the cross-vehicle direction; and the airbag having a periphery and the folds extend continuously around the periphery encircling a vehicle-rearward panel that extends to the folds along the entire periphery in the first stage of inflation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An assembly, comprising:
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a door; a seat; an airbag mounted to the door and being inflatable to an inflated position; wherein in the inflated position the airbag has a first end adjacent the door, a second end spaced from the first end, and a concave portion between the first and second ends, the concave portion being spaced from the seat farther than the first and second ends are spaced from the seat; the airbag including folds, each fold having an apex and limbs, the limbs of at least one of the folds extending from the apex to limbs of adjacent folds; and a fastener fixed to the folds and releasably connecting the folds to each other, the fastener being configured to rupture when the airbag is inflated to a threshold pressure; the airbag being initially expandable in a cross-vehicle direction in a first stage of inflation to a pressure below the threshold pressure, the fastener and the folds in the first stage of inflation moving in the cross-vehicle direction to an inflated position with the fastener fixed to the folds and the folds stacked in a vehicle-rearward direction, and the airbag being subsequently expandable in a vehicle-rearward direction with the fastener ruptured during inflation to a pressure above the threshold pressure, the vehicle-rearward direction being transverse to the cross-vehicle direction; and the airbag having a periphery and the folds extend continuously around the periphery encircling a vehicle-rearward panel that extends to the folds along the entire periphery in the first stage of inflation. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method of inflating an airbag mounted to a door, the airbag having a periphery, folds around the periphery, and a fastener connecting the folds, each fold having an apex and limbs, the limbs of at least one of the folds extending from the apex to limbs of adjacent folds, and the fastener fixed to the folds and releasably connecting the folds to each other, the fastener being configured to rupture when the airbag is inflated to a threshold pressure, the airbag being initially expandable in a cross-vehicle direction in a first stage of inflation to a pressure below the threshold pressure, the fastener and the folds in the first stage of inflation moving in the cross-vehicle direction to an inflated position with the fastener fixed to the folds and the folds stacked in a vehicle-rearward direction during inflation to a pressure below the threshold pressure, and the airbag being subsequently expandable in a vehicle-rearward direction with the fastener ruptured during inflation to a pressure above the threshold pressure, the vehicle-rearward direction being transverse to the cross-vehicle direction, and the airbag having a periphery and the folds extend continuously around the periphery encircling a vehicle-rearward panel that extends to the folds along the entire periphery in the first stage of inflation, the method comprising:
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inflating the airbag to a first inflation pressure below the threshold pressure to expand the airbag away from the door in the cross-vehicle direction; inflating the airbag to a second inflation pressure greater than the threshold pressure to break the fastener and expand the airbag in the vehicle-rearward direction. - View Dependent Claims (16)
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Specification