Browse Prior Art Database

Isolator Flexure Joint System

IP.com Disclosure Number: IPCOM000105226D
Original Publication Date: 1993-Jun-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 1 page(s) / 30K

Publishing Venue

IBM

Related People

Kawabata, K: AUTHOR [+2]

Abstract

The invention disclosed is a novel method for incorporating flexures into the isolator system of a head disk assembly (HDA) voice coil motor (VCM). The proposed method provides both functional and cost benefits.

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Isolator Flexure Joint System

      The invention disclosed is a novel method for incorporating
flexures into the isolator system of a head disk assembly (HDA) voice
coil motor (VCM).  The proposed method provides both functional and
cost benefits.

      A VCM isolator system compensates for undesirable resonances in
the base casting/spindle system resulting during high acceleration of
the actuator.  An isolator system generally comprises flexures,
damping material, and two mounting parts.  Before the present
invention, the flexures were secured to the mounting parts with screw
and nut plate assemblies.

      In the proposed method, ends of a flexure are inserted into
blind holes in the mounting parts containing epoxy.  A secure fit at
the flexure's point of insertion is assured by a tight interference
fit.  In addition, both ends of a flexure may be curled or bent to
increase the joint strength.

      In contrast to the traditional screw clamp method, the proposed
method offers advantages such as a higher clamping force, smaller
space requirements, fewer components, a simplified manufacturing
process, less fabrication, greater component tolerances and reduced
cost.

Disclosed Anonymously.