| 摘要 |
A recording disk cartridge has a plurality of flexible recording disk media integrally rotatably housed within a cartridge case which comprises a lower plate for configuring a lower wall parallel to said plurality of the recording disk media, at least one inner plate that is stacked and fixed on said lower plate and partitions said plurality of the recording disk media, a shutter that opens and closes a case opening which is formed in a portion of a side wall configured by the lower plate and the inner plate and the upper plate, wherein the shutter comprises a lower rotor which is rotatably supported in an inner side of the lower plate, an upper rotor which is rotatably supported in an inner side of the upper plate and a shutter plate that couples both the lower rotor and the upper rotor and shuts off the case opening.
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