US Patent 9688314 Vehicle floor lower structure

A vehicle floor lower structure comprises a floor panel that configures a floor of a vehicle; a fuel tank that is disposed at a vehicle body lower side of the floor panel; an exhaust pipe that extends from an engine toward a vehicle body rear side, and that passes at a vehicle width direction outer side of the fuel tank; and a left and right pair of under reinforcements that are joined to a lower face of the floor panel and that respectively extend along a vehicle body front-rear direction at vehicle width direction outer sides of the fuel tank and the exhaust pipe.