Browse Prior Art Database

Actuator Arm Attach Method

IP.com Disclosure Number: IPCOM000115669D
Original Publication Date: 1995-Jun-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 76K

Publishing Venue

IBM

Related People

Heath, J: AUTHOR [+2]

Abstract

A technique is disclosed for attaching integrated Suspension/Arm assemblies to Actuator Hubs, for use in small form factor Hard Disk Drives (HDDs) with reduced disk-to-disk spacings.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 64% of the total text.

Actuator Arm Attach Method

      A technique is disclosed for attaching integrated
Suspension/Arm assemblies to Actuator Hubs, for use in small form
factor Hard Disk Drives (HDDs) with reduced disk-to-disk spacings.

      The continuing trend to miniaturization of HDDs is forcing
mechanical designers to reduce the disk-to-disk spacing, demanding
changes in the traditional methods of mounting Suspensions and Arms
to the Actuator.  In particular, integration of Suspensions and Arms
to reduce the overall thickness by eliminating the Suspension
Mounting Blocks demands methods of attaching these integrated
Suspension/Arm assemblies to the Actuator Hub.  This invention
describes three variations of a technique to attach the Arms to the
Hubs which will work with small disk-to-disk spacings.

      Fig. 1 shows an Actuator Hub which has been formed by grinding
Circumferential Slots around the Hub, and then grinding pairs of
Longitudinal Grooves on opposite sides of the Hub.  The contours
formed serve two purposes.  First, they provide alignment of the Arms
as the Arms slip into the slots.  Second, the small islands formed by
the longitudinal grooves contain the spread of Adhesive that is
applied between the island surfaces on the hub and the corresponding
surfaces on the Arms.  Containing the adhesive is required for easier
rework and replacement of Arms with bad Read/Write heads.

      Fig. 2a shows an alternative attachment method.  The
Circumferential Sl...