Patent attributes
A side airbag apparatus is provided between a vehicle body and a back seat, and includes a base housing configured to house an airbag and an inflator, a base member having upper and lower base attachment portions provided to sandwich the base housing in an upper-to-lower direction and attached to a portion of the vehicle body, and a retainer member configured to hold the base housing from a vehicle back side. Right and left engagement claws at an upper end of a back wall of the retainer member are arranged to engage respectively with engagement holes provided at a portion of the vehicle body on the vehicle back side. A virtual plane passing through the upper and lower base attachment portions and extending along a vehicle front-to-back direction passes between the right and left engagement claws.
