Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1988-04-28
1990-03-20
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9912, 360133, G11B 5012
Patent
active
049106201
ABSTRACT:
A disk pack module of a manetic disk memory provides a plurality of data disks separated from one another by spacer rings and arranged on a hub that is rotatably arranged in a housing. The data disks are slipped onto the hub against a flange thereof that projects in the radial direction and is constructed to be elastically deformable and are non-positively clamped thereto with a tension plate. A tension plate is provided, as a receptacle for the tension plate, that is fixed at the end face of the hub facing away from the flange and is constructed such that it reversibly deforms given material stresses occurring as a consequence of temperature changes. As a result of a twisting deformation of the tension ring, different thermal expansions of the hub or, respectively, of the element slipped thereon, are intercepted and neutralized in collaboration with the deformation of the hub flange.
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"Bistable Disk Clamp to Apply Axial Fouce", IBM TDB, Mar. 1987, vol. 29, No. 10, pp. 4346-4347.
"Disk Pack Clamping Ring", IBM TDB, Apr. 1986, vol. 28, No. 11, pp. 4957-4958.
Hecker Stuart N.
Severin David J.
Siemens Aktiengesellschaft
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