| 摘要 |
PROBLEM TO BE SOLVED: To prevent the failure of a magnetic head. SOLUTION: A main frame 11, a main substrate 5 and a disk housing discharging mechanism 20 have a supporting member 43a erected on the main frame, an upright member 48 erected on the main substrate 5 and a louvering piece 22f erected by cutting and raising a disk holder 22 of the disk housing/ discharging mechanism 20, as reinforcing means erected on the cover 61 side so as to force the external stress to be exerted between the main frame and the cover.
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