US 12,606,117 B2Granted

Side airbag device for vehicle

AssigneeAutoliv Development AB

InventorsTae Ik Gwon, Yong Hyun Jung, Jong Ki Byun, Dae Chang Jung

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Abstract

A side airbag device for a vehicle, comprising: an airbag cushion that is built into a backrest of a seat and inflated and deployed so as to correspond to the entire side surface of an occupant's upper body in the event of a side impact crash of the vehicle; and an inflator that generates gas according to an impact detection signal in the event of the side impact crash of the vehicle to supply the gas to the airbag cushion, wherein the airbag cushion is configured such that the height of upward inflation and deployment is expanded by contact with the occupant's arm, thereby avoiding interference with a curtain airbag at the initial stage of deployment of the airbag cushion and safely protecting the head of the occupant by expanding an upper chamber thereof upward by contact with the occupant's arm.

Claims6

Dependent claims

A side airbag apparatus for a vehicle, the side airbag apparatus comprising:

an airbag cushion that is accommodated in a backrest of a seat and configured to expand and deploy corresponding to a side of an upper body of an occupant upon side collision of the vehicle;
and
an inflator that generates gas in response to an impact detection signal to supply the gas to the airbag cushion upon side collision of the vehicle,
wherein the airbag cushion includes:
a central chamber configured to correspond to a chest portion and an upper abdomen portion of the occupant;
a lower chamber configured to correspond to a pelvis portion and a lower abdomen portion of the occupant;
an upper chamber configured to correspond to a head portion of the occupant;
and
a chamber wall, which is not expanded at an initial stage of deployment of the airbag cushion, is formed between the central chamber and the upper chamber, and the chamber wall is configured to expand and move upward by making contact with an arm portion of the occupant, thereby increasing an expansion height of the airbag cushion that expands and deploys upward;
the chamber wall defines the expansion height of the airbag cushion.

7 more elements

Dependencies are inferred from the claim text.