| 摘要 |
A magnetic tape cartridge containing a tape reel to which a magnetic tape with a leader pin attached to a leading end is wound is equipped with a leader pin retaining structure for safe and secure retention of the leader pin immediately behind a tape egress/ingress opening. The leader pin retaining structure comprises a retainer member having resilient arms and a leader pin support for supporting the retainer member so as to place tail end portions of the resilient arms across end collars of the leader pin received in sockets provided adjacent to the tape egress/ingress opening, wherein the leader pin support resiliently urges and bends the resilient arms so as to retain the end collars of the leader pin by the tail end portions of the resilient arms, respectively.
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