| 摘要 |
PROBLEM TO BE SOLVED: To prevent the jumping out of a small-sized and light disk cartridge from the loading port of a disk drive by receiving the closure reaction of a shutter. SOLUTION: The disk cartridge energized with the shutter 4 to a closing tendency by means of a spring 6 is provided with holding recessed parts 10 and 11 at the base surface of a case body 2. These holding recessed parts 10 and 11 are engaged and held by capturing bodies 12 and 13 disposed at the disk drive to prevent the jumping out of the case body 2 to the outside from the loading port of the disk drive by the closing reaction of the shutter 4 at the time of ejection manipulation.
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