| 摘要 |
PROBLEM TO BE SOLVED: To provide a recording disk cartridge which can stabilize the rotational operation thereof, even when the number of recording disk media is increased. SOLUTION: The magnetic disk cartridge 1 is provided with the plurality of magnetic disk media 41, a stacked body of center cores 42 for integrally rotating them, and a cartridge case 2 having an opening 16 for exposing one end side of the stacked center cores 42 to the outside. The central part of the other end side of the stacked center cores 42 is provided with a connection shaft 44 which is slidably engaged along the axial direction of the center cores 42 and whose tip is brought into contact with the cartridge case 2 via a bearing ball 45. A compression coil spring 46 for pressing the overall stacked center cores 42 to the side of the opening 16 is provided between the connection shaft 44 and the center cores 42. COPYRIGHT: (C)2006,JPO&NCIPI
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