Airbag device
First Claim
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1. An airbag device comprising:
- an airbag having a gas inlet and a seam around the gas inlet,an inflator for providing a gas into the airbag through the gas inlet,a retainer for fixing the airbag, andat least one gas outlet formed in the airbag around the gas inlet for discharging the gas supplied from the inflator into the airbag outwardly through a vicinity of the inflator, said at least one gas outlet being a cut portion extending from the gas inlet and connected by the seam around the gas inlet, said seam providing a predetermined strength so that when a pressure in the airbag reaches a predetermined value, the seam tears to allow the gas to be discharged outside the airbag.
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Abstract
An airbag device is formed of an airbag having a gas inlet, an inflator for providing a gas into the airbag through the gas inlet, and a retainer for fixing the airbag. The airbag is provided with at least one gas outlet formed around the gas inlet for discharging the gas therethrough. Therefore, the gas can escape outside of the airbag so as to prevent the inner pressure of the airbag from exceeding a predetermined value. The airbag can deploy smoothly and prevent undesired load to an obstacle.
31 Citations
6 Claims
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1. An airbag device comprising:
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an airbag having a gas inlet and a seam around the gas inlet, an inflator for providing a gas into the airbag through the gas inlet, a retainer for fixing the airbag, and at least one gas outlet formed in the airbag around the gas inlet for discharging the gas supplied from the inflator into the airbag outwardly through a vicinity of the inflator, said at least one gas outlet being a cut portion extending from the gas inlet and connected by the seam around the gas inlet, said seam providing a predetermined strength so that when a pressure in the airbag reaches a predetermined value, the seam tears to allow the gas to be discharged outside the airbag. - View Dependent Claims (2, 3)
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4. An airbag device, comprising:
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an airbag having a gas inlet, an inflator for providing a gas into the airbag through the gas inlet, a retainer for fixing the airbag, and a spacer situated between the airbag and the retainer and completely surrounding the gas inlet, said spacer having at least one weakened portion, which is broken to allow the gas to be discharged when a pressure in the airbag reaches a predetermined value, to thereby provide at least one gas outlet around the gas inlet for discharging the gas supplied from the inflator into the airbag outwardly through a vicinity of the inflator.
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5. An airbag device comprising:
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an airbag having a gas inlet, an inflator for providing a gas into the airbag through the gas inlet, a retainer for fixing the airbag, a ring situated inside the airbag and connected to the retainer for holding the airbag around the gas inlet between the ring and the retainer, and at least one gas outlet formed in the airbag around the gas inlet for discharging the gas supplied from the inflator into the airbag outwardly through a vicinity of the inflator, said at least one gas outlet being a cut portion extending outwardly from the gas inlet beyond the ring disposed around the gas inlet. - View Dependent Claims (6)
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Specification