Patent · US Expired

Clamping device for removable disks

US6836461B2 · kind B2 · utility

8Cited by

12References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Dieter Baum · Wiesbaden, DE
Frank Krick · Ockenheim, DE
Ferdinand Rosskopf · Guldental, DE

Key dates

Filing date	Mar 14, 2002
Grant date	Dec 28, 2004
Priority date	—
Expiry date	Apr 9, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG11B17/022
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A clamping device for clamping disks uses a flexible lock member, a hub, and a cap. The hub is mounted to a spindle, which defines a rotational axis for the hub. The upper portion of the hub has a recess including a guide in which the lock member is axially introduced. A clamping effect of the lock member in the recess is preferably achieved by selecting outer diameter of the lower portion of the lock member greater than the diameter of the cylindrical recess. The hub has a disk seating surface proximate to the base of the upper portion. The lock member is a unitary cap-shaped member made of flexible material, and preferably includes a plurality of axial fingers extending the disk-seating surface. The fingers are preferably a lower and an upper portion. The lower portion comprises an outer stiffening area forming a greater diameter than the upper portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.