Patent attributes
A tape cartridge in which an operation for engaging a reel hole of a tape reel with a drive shaft can be carried out smoothly, the tape reel can be rotationally driven in a state in which the centers of the drive shaft and the reel hole match, and reading/writing from/to recording tape can consistently be carried out in a stable manner. A drive shaft 13 of a tape drive comprises a fitting shaft 15 formed in a multi-sided cross-section shape and an engagement guide shaft 16 formed in an upwardly tapered shape. A drive shaft insertion hole 1c for the drive shaft 13 is provided in a lower wall of a housing 1. A reel hole 9 into which the drive shaft 13 is fitted is provided in a hub 5 of the tape reel 2. The reel hole 9 is formed in the same multi-sided cross-section shape as the fitting shaft 15, the vertical depth of the reel hole 9 being set so as to accept the fitting shaft 15 and the coupling guide shaft 16.
