Patent ID: 7886461

Claim:
A shoe sole assembly for supporting a shoe on a ground under said shoe, wherein: said shoe sole assembly includes in succession in a longitudinal direction, a heel portion extending longitudinally from a heel end of said shoe sole assembly to a first intermediate boundary, a midfoot portion extending longitudinally from said first intermediate boundary to a second intermediate boundary, and a forefoot portion extending longitudinally from said second intermediate boundary to a toe end of said shoe sole assembly, said heel portion includes at least one heel outsole member respectively each having a heel ground contact surface arranged to contact the ground; said forefoot portion includes at least one forefoot outsole member respectively each having a forefoot ground contact surface arranged to contact the ground; said midfoot portion includes an upper plate that is formed of a hard elastic material and that is disposed on an upper side of said midfoot portion, a lower plate that is formed of a hard elastic material and that is disposed below said upper plate, a midfoot outsole member that protrudes downwardly from said lower plate and that has a midfoot ground contact surface arranged to contact the ground, and respective connections vertically between said upper plate and said lower plate respectively at said first intermediate boundary and at said second intermediate boundary; said lower plate has a downwardly convexly curved shape that extends from said first intermediate boundary to said second intermediate boundary and that forms a void between said upper plate and said lower plate; and said midfoot ground contact surface is discrete and separated in said longitudinal direction from said heel ground contact surface and from said forefoot ground contact surface.