Rigid magnetic data storage disk assembly with grooved spacer

Details Rigid magnetic data storage disk assembly with grooved spacer Rigid magnetic data storage disk assembly with grooved spacer

1989-04-17

1991-04-09

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 1708

Patent

active

050069420

ABSTRACT:
A system for clamping and retaining a stack of rigid magnetic disks is shown using disk spacer rings with an annular groove in the outer cylindrical surface. A concentrated axial load is applied to the stack by support surfaces which overlie the grooved portions of the spacers. The concentrated load is only partially distributed over the radial extent of the spacers with respect to the disks at the axial ends of the stack to resist coning or cupping of such end disks, while the force distribution approaches a uniform loading with respect to inner disks of the stack to retain the undistorted, planar orientation of such inner disks. The grooved spacers also provide a surface which can be used to engage and manipulate the disk assembly during manufacture of the drive.

REFERENCES:
patent: 4819105 (1989-04-01), Edwards

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