Patent ID: 7204537

Claim:
An adjustable truck box extender flip gate, which is installed in a truck box without removing tool boxes which are already installed thereof is comprised of: a tail gate attaching frame that is comprised of two long metal plates of ¼ inch thickness, which are horizontally fixed to inside surface of a tail gate of a pick-up truck by screwing bolts through bolting holes, and a first front face that is comprised of ½ inch by ½ inch square metal pipes connected by welding in a large rectangular shape and two or more vertical pipes, stainless steel rods, and carbon steel mesh reinforce the front face and a male screw is developed on one end of each stainless steel rod and one pin hole for a stopper pin is formed on the other end of the stainless steel rod, and a second front face that is made of one stainless steel sheet of ¼ inch thickness having a plurality of racks developed thereon to receive wheel of bicycle or leg of ladders and is rotatably connected to the first front face via plurality of hinges, and two side faces that are perpendicular to the first front face are comprised of; two, 1 inch by ½ inch, rectangular metal pipes that are welded to both ends of the two long metal plates of the tail gate attaching frame, and two metal frames made of ¼ inch metal plates, having a rectangular empty space in each frame and are welded to the two rectangular pipes of 1 inch by ½ inch positioning vertical to the long metal plates of the tale gate attaching frame, and two guides, each of them is comprised of; four ½ inch square pipes of same length welded each other at the ends, and two rear pipes each of which is welded to the rear upper end of the guide and each of which has one hole to receive the first front face rotatably.