Magnetic tape cartridge

摘要

A magnetic tape cartridge comprising a cartridge casing formed of upper and lower casing halves, a single reel around which a magnetic tape is wound and which is contained in the cartridge casing for rotation and a leader pin which is fixed to the leading end portion of the magnetic tape, the ends of the leader pin being removably held in a recess formed inside a tape outlet opening in the cartridge casing, wherein the improvement comprises that the recess has upper and lower inner surfaces which are flat and spaced from each other by a distance substantially equal to the length of the leader pin, and upper and lower guide surfaces are formed in the cartridge casing to extend from the upper and lower inner surfaces of the recess to the tape outlet opening so that the distance between the upper and lower guide surfaces becomes larger toward the tape outlet opening.