Airbag apparatus
First Claim
1. An airbag apparatus comprising:
- a gas generator; and
an airbag,wherein the airbag includes a second fabric inner tube and a third fabric inner tube, both surrounding at least a gas injecting portion of the gas generator to have a double tubular-shape, the second inner tube and the third inner tube being arranged from inside to outside in this order,wherein common portions of the second inner tube and the third inner tube in a tubular circumferential direction are coupled to an airbag main body by a body coupling portion extending in a tubular length direction, andwherein other common portions of the second inner tube and the third inner tube are coupled to each other by a longitudinal coupling portion extending in the tubular length direction, in a state where the airbag is only deployed and not inflated a first imaginary line through the other common portions at the longitudinal coupling portion and a second imaginary line through the common portions of the second inner tube and the third inner tube at the body coupling portion are separated in the tubular circumferential direction by a central angle of 70 to 180 degrees about the gas generator,wherein a first tubular check valve is formed by one piece of cloth which is integrally continuous from the third inner tube,wherein a part of the first check valve in the tubular circumferential direction is coupled to the airbag main body.
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Accused Products
Abstract
An airbag apparatus includes a gas generator, and an airbag. The airbag includes a first fabric inner tube and a second fabric inner tube, both surrounding at least a gas injecting portion of the gas generator to have a double tubular shape. Common portions of the first inner tube and the second inner tube in a tubular circumferential direction are coupled to an airbag main body by a coupling portion extending in a tubular length direction, and other common portions which are separated from the common portions of the first inner tube and the second inner tube by a central angle (a central angle in a state where the airbag is only deployed and not inflated) of 70 to 180 degrees about the gas generator in the tubular circumferential direction are coupled to each other by a coupling portion extending in the tubular length direction.
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Citations
16 Claims
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1. An airbag apparatus comprising:
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a gas generator; and an airbag, wherein the airbag includes a second fabric inner tube and a third fabric inner tube, both surrounding at least a gas injecting portion of the gas generator to have a double tubular-shape, the second inner tube and the third inner tube being arranged from inside to outside in this order, wherein common portions of the second inner tube and the third inner tube in a tubular circumferential direction are coupled to an airbag main body by a body coupling portion extending in a tubular length direction, and wherein other common portions of the second inner tube and the third inner tube are coupled to each other by a longitudinal coupling portion extending in the tubular length direction, in a state where the airbag is only deployed and not inflated a first imaginary line through the other common portions at the longitudinal coupling portion and a second imaginary line through the common portions of the second inner tube and the third inner tube at the body coupling portion are separated in the tubular circumferential direction by a central angle of 70 to 180 degrees about the gas generator, wherein a first tubular check valve is formed by one piece of cloth which is integrally continuous from the third inner tube, wherein a part of the first check valve in the tubular circumferential direction is coupled to the airbag main body. - View Dependent Claims (2)
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3. An airbag apparatus comprising:
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a gas generator; and an airbag, wherein the airbag includes a second fabric inner tube and a third fabric inner tube, both surrounding at least a gas injecting portion of the gas generator to have a double tubular-shape, the second inner tube and the third inner tube being arranged from inside to outside in this order, wherein common portions of the second inner tube and the third inner tube in a tubular circumferential direction are coupled to an airbag main body by a body coupling portion extending in a tubular length direction, and wherein other common portions of the second inner tube and the third inner tube are coupled to each other by a longitudinal coupling portion extending in the tubular length direction, in a state where the airbag is only deployed and not inflated a first imaginary line through the other common portions at the longitudinal coupling portion and a second imaginary line through the common portions of the second inner tube and the third inner tube at the body coupling portion are separated in the tubular circumferential direction by a central angle of 70 to 180 degrees about the gas generator, wherein a first tubular check valve is formed by one piece of cloth which is integrally continuous from the third inner tube, wherein a second fabric tubular check valve is provided outside of the first valve to have a double tubular shape. - View Dependent Claims (4, 5, 6)
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7. An airbag apparatus comprising:
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a gas generator; and an airbag, wherein the airbag includes a first fabric inner tube, a second fabric inner tube and a third fabric inner tube, all surrounding at least a gas injecting portion of the gas generator to have a triple tubular-shape, the first inner tube, the second inner tube, and the third inner tube being arranged from inside to outside in this order, wherein common portions of the first inner tube, the second inner tube and the third inner tube in a tubular circumferential direction are coupled to an airbag main body by a body coupling portion extending in a tubular length direction, and wherein other common portions of the first inner tube, the second inner tube, and the third inner tube are coupled to each other by a longitudinal coupling portion extending in the tubular length direction, in a state where the airbag is only deployed and not inflated a first imaginary line through the other common portions at the longitudinal coupling portion and a second imaginary line through the common portions of the first inner tube, the second inner tube and the third inner tube at the body coupling portion are separated in the tubular circumferential direction by a central angle of 70 to 180 degrees about the gas generator, wherein the first inner tube, the second inner tube and the third inner tube are coupled to each other by a tubular circumferential coupling portion extending in the tubular circumferential direction. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification