Browse Prior Art Database

Custom Floating Spindle to Circumferential Texture Hard Disks

IP.com Disclosure Number: IPCOM000037244D
Original Publication Date: 1989-Dec-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Gorman, RE: AUTHOR [+3]

Abstract

This article describes a mechanism in which a 5.25" diameter hard disk is placed on a floating spindle that can float vertically and work as a floating gimbal, so while circumferential texturing both sides of the disk, the disk is floating in all directions between two platen ring surfaces. (Image Omitted)

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 62% of the total text.

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Custom Floating Spindle to Circumferential Texture Hard Disks

This article describes a mechanism in which a 5.25" diameter hard disk is placed on a floating spindle that can float vertically and work as a floating gimbal, so while circumferential texturing both sides of the disk, the disk is floating in all directions between two platen ring surfaces.

(Image Omitted)

Fig. 1 is a side view partly in section of the mechanism disclosed herein. Fig. 2 is a bottom view of the mechanism of Fig.
1. The mechanism includes items as follows:

A. Main spindle shaft and bearings.

B. Custom floating gimbal head for disk.

C. "C" washer and locknut to clamp disk to the gimbal

head.

D and G. Top and bottom texturing platen rings.

E. Lock mechanism to lock spindle for loading and

unloading disk.

F. Spline drive to drive spindle.

H. Drive Pin

In operation, the floating gimbal head B is loaded automatically with a disk by a load and unload mechanism over the drive spindle (not shown). "C" washer and locknut is placed onto the disk and head and over a drive pin H. A hydraulic impact wrench (not shown) drives the locknut down to a specific torque, clamping the disk to the gimbal head B. The spindle A is then rotated 180 degrees to the work position between two platen rings D and G having pads. The platen rings are actuated and the bottom ring G moves up .50 inch to a positive stop, lifting the disk up approximately .015 of an inch. The top ring D moves down approximately 1.50 inches t...