| 摘要 |
There is provided a disk cartridge adaptable to an enlarged head by exposing an information recording disk extensively out of a cartridge case. In the disk cartridge, a cartridge case is divided on its plane into at least a first case portion and a second case portion, and the second case portion is arranged to be slidable relative to the first case portion. When the disk cartridge is not in use, the information recording disk is enabled to be covered by the first case portion and the second case portion by keeping the first case portion and the second case portion in a parallel state, and a disk freeing portion is so formed that, when the disk cartridge is in use, exposes parts of both inside face and outside face of the information recording disk are exposed from the cartridge case by moving the second case portion relative to the first case portion and overlapping the first case portion and the second case portion.
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