Patent ID: 6445539
Filing Date: 2002-09-03
Classification: G11B

Abstract:
A magnetic tape cartridge comprising a cartridge casing, and a single reel around which a magnetic tape with a leader pin fixed to the leading end thereof is wound and which is contained in the cartridge casing for rotation,wherein the improvement comprises a pin holding member which is supported for rotation on a shaft and is rotatable between a first position where the leader pin is permitted to be removed from the cartridge casing and a second position where the pin holding member is in abutment with the leader pin and holds the leader pin in a predetermined position, the pin holding member being rotated from the first position to the second position when the leader pin is retracted into the cartridge casing, and the pin holding member being rotated from the second position to the first position by the leader pin when the leader pin is withdrawn from the cartridge casing.