Patent attributes
A body structure of an automobile is provided in which a body floor includes a floor panel having a bulge portion bulging upward formed on the rear part on opposite side parts in the vehicle width direction, and a side member disposed in the fore-and-aft direction along the upper face on opposite side parts in the vehicle width direction of the floor panel and having integrally formed therewith the rear pillar rising upward from the upper face of the bulge portion. Due to the mounting structure of a rear side frame and the roof side rail support member, it is possible to enhance the strength and stiffness of the rear part of the body floor made of CFRP by the bulge portion and the rear pillar and to strongly mount the rear side frame and the roof side rail support member on the rear part of the body floor.