US Patent 9616939 Lower vehicle-body structure of vehicle

There are provided a pair of diagonally-extending inclination members which are formed in a substantially X shape in a plan view and provided above or below a floor panel. Each of the pair of inclination members is configured to interconnect a connection portion of one of right-and-left side sills and a hinge pillar and a connection portion of the other of the right-and-left side sills and a center pillar. Thereby, a load-transmission efficiency between a front end of the above-described one of the right-and-left side sills and the other of the right-and-left side sills can be improved in the SOL or vehicle side collisions.