Low-friction, belt-driven tape cartridge

摘要

The belt of a two-reel tape cartridge is stretchably entrained around the tape packs, a belt driving roller, and a pair of idler rollers, each of which is journalled on a shaft projecting from one end of an arm. The other end of each arm is pivotably mounted in the cartridge so that the idler rollers ride on the belt and are pressed by the belt against the belt and the underlying tape pack.