Patent ID: 6854680

Claim:
A tape cartridge which is insertable at a tape drive, the tape drive being provided with an opening member which is operably engageable with the tape cartridge at a time of insertion of the tape cartridge and carrying out at least one of reading and writing of data, the tape cartridge comprising: a case; a single reel rotatably provided in the case, the reel including a first center of rotation thereof; a tape unwindably attached to the reel; a tape access opening provided at the case; and a covering member which is reciprocally moveable along a circular arc-form movement path between a closed position for closing the tape access opening and an open position for opening the tape access opening, the circular arc including a predetermined radius thereof from a second center of rotation, wherein a position of the first center of rotation in a direction of the insertion of the cartridge substantially coincides with a position of the second center of rotation in the cartridge insertion direction.