Dynamic information storage or retrieval – Dynamic mechanism subsystem – Specific detail of storage medium support or motion production
Patent
1996-01-11
1998-06-02
Levy, Stuart S.
Dynamic information storage or retrieval
Dynamic mechanism subsystem
Specific detail of storage medium support or motion production
360 9912, G11B 17028
Patent
active
057611866
ABSTRACT:
The disk centering device of the invention includes: a turntable for retaining an information recording disk which has a center hole and is placed on a placing surface so that the disk can rotate around a rotation axis thereof; and a centering unit including a plurality of centering portions coming into contact with a periphery of the center hole and a plurality of resilient portions, each of which is connected with a corresponding one of the plurality of centering portions for supporting the centering portion so that the centering portion can be resiliently displaced in a radial direction of the information recording disk. In the disk centering device, the turntable includes regulating faces for regulating positions of the centering portions in a state where the centering portions are resiliently displaced in the radial direction as a result of a contact between the centering portions and the regulating faces, and each of the centering portions is in contact with the periphery of the center hole at a disk contact part which is located at a position more distant from the resilient portion than the regulating face.
REFERENCES:
patent: 4484321 (1984-11-01), Eisemann
patent: 4730300 (1988-03-01), Kamoshita et al.
patent: 4787079 (1988-11-01), Ueno
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patent: 4827470 (1989-05-01), Odawara et al.
patent: 4951277 (1990-08-01), Masunaga et al.
patent: 5501760 (1996-03-01), Mukawa
Fujii Hitoshi
Goto Yoshikazu
Mushika Yoshihiro
Namoto Yoshiteru
Levy Stuart S.
Matsushita Electric - Industrial Co., Ltd.
Ometz David L.
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