Patent ID: 7243980

Claim:
A vehicle air drag reduction system for mounting on the rearward surface of a vehicle, wherein said rearward surface of said vehicle on which said system is to be mounted, is substantially flat and rectangular, with opposed vertically disposed side edges and opposed horizontally disposed upper and lower edges, said vehicle air drag reduction system comprises: a flexible panel to be affixed to said rearward surface, and extending, in use, essentially between said disposed side edges and essentially between said upper and lower edges, and having two exterior support rod passages, and at least one interior support rod passage positioned between said exterior support rod passages, all of which support rod passages extend from one edge of said flexible panel to an opposite edge thereof; two exterior support rods, and at least one interior support rod, each of which are essentially parallel to each other, and are positioned, in use, as to be vertically orientated to the ground, and are positioned substantially within said exterior or interior support rod passages respectively, so as to provide structural support for the flexible panel, and each having a support rod end fitting protruding from said support rod passages at each end of said support rod passage; a series of support rod brackets affixed to said vehicle in a substantially linear fashion on opposing edges of said vehicle, and in corresponding alignment with said support rod passages, into which brackets said support rod ends are fitted; and wherein said interior support rods are longer in length than said exterior support rods such that said interior support rods, and thus said flexible panel, are bowed, in use, to form a cone-shaped panel.