| 摘要 |
A recording tape cartridge which is not subject to concern about a leader block disengaging, even when a case is subjected to an impact due to dropping or the like. The recording tape cartridge is provided with the case, an aperture for drawing out a recording tape, and a leader block. The case rotatably accommodates a single reel, on which the recording tape is wound. The aperture is formed in a peripheral wall of the case. The leader block is fixed to an end portion of the recording tape, is drawn out by drawing-out means of a drive device, and is capable of closing the aperture. At this recording tape cartridge, a cover member, which covers at least a portion of the leader block that is closing the aperture, is provided to be slideable along the peripheral wall.
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