Patent attributes
A side airbag device includes an airbag including a first inflation portion fixed to a seat and a second inflation portion inclining toward an occupant with respect to the first inflation portion. The airbag includes an occupant side panel disposed on an occupant side, a non-occupant side panel disposed opposite the occupant side panel, and a strip connection panel connecting a peripheral edge of the occupant side panel and a peripheral edge of the non-occupant side panel. The non-occupant side panel is spaced from the occupant side panel in a vehicle width direction. The connection panel includes a bend portion between a first peripheral edge portion connected to a first part of the peripheral edge of the occupant side panel defining the first inflation portion and a second peripheral edge portion connected to a second part of the peripheral edge of the occupant side panel defining the second inflation portion, or in the second peripheral edge portion.