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Squeeze Load Design for Magnetic Read/Write Heads

IP.com Disclosure Number: IPCOM000122922D
Original Publication Date: 1998-Jan-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Schreck, E: AUTHOR

Abstract

A conventional Head Suspension Assembly (HSA) is designed to apply a static load to the head to keep it in contact with the disk. The load, thus, is defined by the compliance of the suspension and the static deflection. In order to fulfill this task, the freedom of design of the suspension is limited.

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Squeeze Load Design for Magnetic Read/Write Heads

      A conventional Head Suspension Assembly (HSA) is designed to
apply a static load to the head to keep it in contact with the disk.
The load, thus, is defined by the compliance of the suspension and
the static  deflection.  In order to fulfill this task, the freedom
of design of the  suspension is limited.

      The design shown in the Figure overcomes this limitation by
freeing the main suspension 1 from producing the static load.  A
fork-like structure 2, carrying the read/write heads 3 at one end,
that will be squeezed in between two disks 4 now produces the static
load force.  The fork is connected with a flexible fixture 5 to the
rigid main  suspension.

      The design also makes the system less sensitive to disk
spacing, disk stacking tolerances and also improves shock resistance.