Tape cartridge with movable leader pin holder

摘要

A tape cartridge is disclosed which allows tape threading to be performed using a drive apparatus for use with a conventional cartridge and allows taking out of a leader pin thereof even if a leader block for engaging with the leader pin is not positioned very near to a case of the cartridge loaded at a predetermined position of a drive apparatus for a tape cartridge. A cartridge reel is disposed for rotation in a case, and a leader pin holder for holding a leader pin attached to an end of a tape wound on the reel is disposed in the case. The case has an aperture which permits passage of the tape therethrough, and the leader pin holder is mounted for pivotal motion around a shaft with respect to the case between a closing position at which it closes at least part of the aperture and an open position which opens the aperture. The leader pinholder is acted upon by biasing force toward the closing position. The leader pinholder is pivoted toward the open position against the biasing force through a relaying member to open at least part of the aperture through engagement thereof with a tape drive apparatus when the tape cartridge is loaded into the tape drive apparatus.