Patent ID: 7472857
Filing Date: 2009-01-06
Classification: G11B

Abstract:
1. A tape cartridge applicable in a tape drive, the tape drive having a drive shaft comprising a fitting shaft formed in a multi-sided cross-section shape and an engagement guide shaft formed in an upwardly tapered shape continuing on top of the fitting shaft, wherein a drive shaft insertion hole for the drive shaft is provided on a bottom wall of a housing; a reel hole into which the drive shaft is fitted and which inherits rotational force therefrom is formed in a hub of a tape reel contained within the housing in a state facing the drive shaft insertion hole; and the reel hole is formed in the same multi-sided cross-section shape as the fitting shaft, and a vertical depth of the reel hole being set so as to accept the fitting shaft and the engagement guide shaft; and wherein the engagement guide shaft and the fitting shaft are formed so that their respective cross-sections are of an analogous shape, and the engagement guide shaft is formed so that over its entirety it forms a twisted shape central to the drive shaft.