Occupant protection system

摘要

An occupant protection system in which an airbag module can easily be mounted to a seat is provided. A retainer is placed on the inner surface of the lower part of an airbag. Stud bolts projecting downward from the lower surface of the retainer are passed through bolt insertion holes of the airbag, to which first nuts are tightened from the exterior of the airbag through a patch; thus, the airbag is joined to the retainer. A gas generator is joined to the retainer with a bracket. A seat pan has a recess for accommodating the patches and the first nuts when the retainer to which the airbag and the gas generator have been joined in advance is mounted thereto.