Side airbag apparatus
First Claim
1. A side airbag apparatus, which reduces impact from a side of a vehicle to protect an occupant, the apparatus comprising:
- an inflator, which discharges gas;
an airbag, which is inflated and deployed between a body side portion of the vehicle and the occupant by gas discharged from the inflator in response to impact from the side of the vehicle;
a pair of chambers formed by partitioning an internal space of the airbag,wherein one of the pair of chambers is deployed and inflated with higher internal pressure than the other one;
a communication portion provided in the airbag, wherein the pair of chambers communicate with each other via the communication portion; and
an auxiliary inflation section, which is part of the airbag and is inflated around the communication portion by the gas.
1 Assignment
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Accused Products
Abstract
A side airbag apparatus includes an inflator assembly and an airbag. The airbag includes an upper chamber and a lower chamber, which communicate with each other via a communication portion. In the side airbag apparatus, gas is discharged from the inflator assembly in response to an impact from the side of a vehicle. The gas causes the lower chamber to be inflated and deployed beside the occupant with the internal pressure higher than that of the upper chamber. The side airbag apparatus further includes an auxiliary inflation section, which is part of the airbag and is inflated by gas around the communication portion. In the inflation process of the airbag, when the auxiliary inflation section starts inflating, the flow passage area of the communication portion is reduced, thereby suppressing the flow of gas in the communication portion.
22 Citations
8 Claims
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1. A side airbag apparatus, which reduces impact from a side of a vehicle to protect an occupant, the apparatus comprising:
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an inflator, which discharges gas; an airbag, which is inflated and deployed between a body side portion of the vehicle and the occupant by gas discharged from the inflator in response to impact from the side of the vehicle; a pair of chambers formed by partitioning an internal space of the airbag, wherein one of the pair of chambers is deployed and inflated with higher internal pressure than the other one; a communication portion provided in the airbag, wherein the pair of chambers communicate with each other via the communication portion; and an auxiliary inflation section, which is part of the airbag and is inflated around the communication portion by the gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification