Slide-and-Flip Hinge Schematic - 2x4/2x3 Tubing & Polyurethane Wheels Diagram

This document is a hand-drawn schematic sketch illustrating a slide-and-flip hinge mechanism, apparently a homemade/fabricated design (uploaded to a 2002 Ford Crown Victoria gallery, likely as a project reference). The drawing shows an outer channel or track made from 2x4 rectangular tubing, inside which a smaller sliding member made from 2x3 rectangular tubing travels. The 2x3 tubing carries two polyurethane wheels (shown as dashed circles with center axles) that roll inside the 2x4 tubing track. A 'wheel stop' is marked partway along the inside of the 2x4 tubing to limit wheel/slide travel. A hinge location is called out at the lower-left end of the 2x3 tubing member, indicated by a small circle (hinge pin/bolt hole). A curved arrow at the left of the drawing indicates the flip/rotation motion of the assembly once it reaches the end of its sliding travel. The sketch contains no dimensions beyond the nominal tubing sizes, no part numbers, no dates, and no vehicle-specific information. A reader can learn the basic concept and component arrangement for building a slide-and-flip hinge using rectangular steel tubing sections, polyurethane rollers, a travel stop, and a pivot point.