Patent ID: 7036760

Claim:
A tape cartridge comprising: a reel hub unit, for winding a tape-shaped recording medium on its periphery, rotatably accommodated in said tape cartridge; and a leader member for holding and fixing a leading edge of the tape-shaped recording medium, wherein said leader member includes a pin member having a pair of collar portions between which a leading edge of the tape-shaped recording medium is positioned, and a clamp member fitted in between said collar portions through an opening so formed in a longitudinal direction of a cylindrical body as to extend to end surfaces on both sides of said cylindrical body, and clamping the leading edge of the tape-shaped recording medium between said pin member and said clamp member itself, a diameter of the pin member falls within a range of 1.2 to 1.8 mm, and an inside diameter of said clamp member falls within a range of 90 to 96.6% of the diameter of the pin member.