Patent ID: 8690218

Claim:
A vehicle body structure, comprising a body reinforcement behind a second row of seats, said body reinforcement comprising: a beam assembly comprised of two opposite longitudinal side beams made of cast aluminum and defining a left-side longitudinal side beam and a right-side longitudinal side beam; a torsion ring including a floor crossbeam made of sheet metal, and two vertical side beams made of sheet metal and defining a left-side vertical side beam and a right-side vertical side beam, wherein the left-side longitudinal side beam is connected to one end of the floor crossbeam and the left-side vertical side beam at a first nodal point, and the right-side longitudinal side beam is connected to another end of the floor crossbeam and the right-side vertical side beam at a second nodal point, and corner reinforcements being integrated in the torsion ring through casting at the first and second nodal points, respectively, for realizing a stiffening in a transverse plane of the floor crossbeam and the vertical side beams, each said corner reinforcement being configured as a corner reinforcing profile made of uniform material and protruding in the shape of a box and adapted for connection of an associated one of the vertical side beams at the top and the floor crossbeam on the side.