Patent ID: 7195301
Filing Date: 2007-03-27
Classification: B60P

Abstract:
1. A roll up ramp system for temporary connection to a tailgate portion of a hauling vehicle, comprising: a. a securement device, said securement device temporarily connecting said roll up ramp system to said tailgate portion of said hauling device; b. a plurality of links each having a top surface and a bottom surface and being formed by a set of parallel plates interconnected by a central support rod and a pair of lateral locking rods each extending between said set of parallel plates, each of said parallel plates further having a left end and a right end with a linking aperture located on each of said left and right ends thereof; c. a plurality of selvedge linking units, each of which units having a locking portion and a pivot portion, said pivot portion having a pivot aperture, each of said selvedge linking units being fixed within said linking apertures located on each of said left and right ends of each of said parallel plates, each of said selvedge linking units being adapted to rotate in an extended position and a roll up position, said locking portion of each of said selvedge linking units being adapted to receive each of said lateral locking rods when said selvedge linking units are in said extended position, and said locking portion of each of said selvedge linking units being adapted to release each of said lateral locking rods when said selvedge linking units are in said roll up position; d. a plurality of linking support rods, each of said linking support rods being received within said pivot aperture of said pivot portion of each of said selvedge linking units and interconnecting each of said links to form a roll up ramp, said roll-up ramp being adapted to form a ramp configuration and a roll up configuration when a force is applied, said links being adapted to fold over one another when said selvedge linking units are in said roll up position and when said force is applied; e. said ramp configuration of said roll up ramp system being achieved when said force is applied to said top surface of each of said links, thereby engaging said extended position of each of said selvedge linking units and causing said locking portion to be received by each of said lateral locking rods; and f. said roll up configuration of said roll up ramp system being achieved when said force is applied to said bottom surface of each of said links, thereby engaging said roll up position of each of said selvedge linking units and causing said locking portion to be released by each of said lateral locking rods and said links to fold over one another.