| 摘要 |
PROBLEM TO BE SOLVED: To prevent an outer circumferential surface of each of memory disks from being damaged by a method wherein there are provided a plurality of spacers engaged with a central hole of each of the disks, holding and supporting each of the disks and there is also provided a supporting rod passed through and inserted into the central hole of each of the spacers and the central hole of each of the memory disks to support and fix the spacers and the memory disks. SOLUTION: Memory disks B are supported on a supporting block 2 by the supporting rod 3 and spacers 4. The spacers 4 are engaged with the central holes B1 of the memory disks B and hold and support the memory disks B near the central holes B1 of the memory disks B. In turn, the supporting rod 3 is a stepped round bar for pivotally supporting the memory disks B and the spacers 4. With this configuration, the memory disks B are alternatively overlapped on the supporting blodc 2, the central holes B1 of the memory disks B are supported and mounted by the spacers 4 and further enclosed in a case 1, so that an outer circumferential surface of each of the memory disks B may form a free state, resulting in that it is possible to eliminate damage caused by contact between the long memory portion and the container at the outer circumferential part.
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