| 主权项 |
1. A side airbag apparatus comprising:
an inflator that discharges inflation gas in response to an impact applied to a vehicle seat from a side; and an airbag, wherein the airbag includes
a vertical partition having a communication hole,an upstream-side inflation chamber that is supplied with the inflation gas from the inflator, anda downstream-side inflation chamber located adjacent to and in front of the upstream-side inflation chamber, the airbag is divided into at least the upstream-side inflation chamber and the downstream-side inflation chamber by the vertical partition, the inflation chamber is supplied to the downstream-side inflation chamber via the communication hole, the airbag is folded to be turned into a storage form, the airbag in the storage form is configured to be stored in a storage portion located in the vicinity of a side of an occupant seated in a vehicle seat, the airbag in the storage form is configured to be deployed and inflated forward beside the occupant by the inflation gas, and wherein the airbag in the storage form is formed by
first folding in which at least one of an upper portion and a lower portion of the airbag in the uninflated and deployed state is folded back away from the occupant along a folding line that is inclined with respect to the front-rear direction,second folding performed after the first folding, wherein, in the second folding, the airbag is folded from the front toward the rear, andthird folding in which, after the airbag has been turned into a transitional form in the second folding, one of the upper portion and the lower portion of the airbag that has been subjected to the first folding is folded back away from the occupant. |
