Tape cassette reel

摘要

A reel flange for a tape reel in a tape recording system which has an annularly-shaped projecting portion which merges into a recessed annularly-shaped control portion. A plurality of inwardly-directed rib members extend inwardly from the projecting portion into the recessed central portion to aid in the alignment of the reel flanges when stacked during manufacture. Openings in the recessed control portion receive mating pins located on a cylindrical projecting portion intermediate the flanges of the reel to secure the flange to the projection portion. The flange further defines a stacking-pin receiving opening with an alignment lug. The thickness of the projecting portion of the reel flange may also decrease with increasing radial distance from its center.