Passenger seat airbag device
AssigneeAutoliv Development AB
InventorsKaname Tanaka, Kazuki Fujiwara, Kazuhiro Abe
Life of this patent
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Abstract
An airbag device that is stowed in the instrument panel of a vehicle in order to protect an occupant in a passenger seat and includes an inflator for generating expansion gas along with an airbag that inflates and deploys toward the occupant side via gas released from the inflator. The airbag is connected to the inflator and includes a main chamber positioned in front of the occupant properly seated during deployment and a sub chamber connected to at least one side of the main chamber. An inner vent through which gas flows, is formed at a boundary portion of the main chamber and the sub chamber. Furthermore, a check valve for opening and closing the inner vent is provided.
Claims12
An airbag device stowed in an instrument panel of a vehicle to protect an occupant in a passenger seat, the airbag device comprising:
- an inflator for generating expansion gas;
- and
- an airbag connected to the inflator that expands and deploys toward an occupant side by gas released from the inflator, the airbag including:
- a main chamber positioned in an area including the corresponding to a front of an occupant properly seated during deployment of the airbag;
- a sub chamber connected to at least one side surface of the main chamber, the sub chamber, when deployed and viewed from above, forming a roughly triangular shape including a first side on the occupant side, a second side at a boundary portion with the main chamber, and a third side forming a side part of the airbag, wherein a surface of the main chamber and the first side form generally a same impact surface;
- an inner vent through which gas flows formed in the boundary portion of the main chamber and the sub chamber;
- and
- a check valve for opening and closing the inner vent.
Dependencies are inferred from the claim text.