Tire Cross-Section Schematic - Air Chamber, Case Beads, Tube, Rim & Air Pressure

This document is a small color schematic illustrating the cross-section of an automotive tire and wheel assembly, apparently explaining how tire air pressure acts on the tire casing and bead. The left portion of the diagram shows a labeled cutaway of a tire mounted on a rim over a brake drum. Labels identify the tire, the tire air chamber (the internal air space, shown in green), the case top, the case envelope, the case beads, the tube, the brake drum, and the rim. A dashed circle around the bead/rim seating area, with a large arrow, directs the reader to an enlarged detail view on the right. The enlarged view shows the bead area of the tire seated against the rim flange, with arrows (drawn along the inner casing surface) indicating air pressure force acting outward against the casing and bead, labeled with curved text reading approximately 'Air Pressure Force' plus an additional partially legible word. The diagram is generic tire theory rather than vehicle-specific; it contains no part numbers, fuse data, torque values, or year/model applicability information. A reader can learn basic tire construction terminology and visualize how internal air pressure forces the tire casing and beads against the wheel rim.