| 摘要 |
A tape cartridge includes a leader pin that is fixed to an end of a magnetic tape, a case main body that is composed of an upper case and a lower case, has a tape withdrawal opening through which the magnetic tape can be withdrawn formed in a side surface thereof, and has leader pin storage parts capable of respectively storing an upper end and a lower end of the leader pin formed in the upper case and the lower case in a vicinity of the tape withdrawal opening, and a spring member that is disposed in the case main body, regulates movement of the leader pin by having contact surfaces thereof contact or be near to side surfaces of both the end parts of the leader pin that are stored in the leader pin storage parts, and elastically deforms when the leader pin is withdrawn to stop regulating the movement. The contact surfaces of the spring member are curved towards central parts thereof so as to project towards the side surfaces.
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