Browse Prior Art Database

Head Suspension Assembly Deflection Limiter

IP.com Disclosure Number: IPCOM000116048D
Original Publication Date: 1995-Jul-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Hernandez, M: AUTHOR [+3]

Abstract

Described is a method of head suspension assembly which reduces damage to flexure and wires.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 74% of the total text.

Head Suspension Assembly Deflection Limiter

      Described is a method of head suspension assembly which reduces
damage to flexure and wires.

      During production, transporting of the Head Gimble Assembly 1
(HGA) or any assembly using an HGA 1 (such as an actuator or a disk
drive) during its production, movement or use (such as when parked
with an HGA 1 unload device), sufficient G-Loads can be applied to
the aforementioned HGA 1 to impart enough momentum to the head 2 and
its attached flexure 3 to plastically deform the flexure 3 in
Deformation Zone #1 4 so as to permanently separate the load dome
(not shown) from the load beam 5.

      By limiting the free travel of the head 2 and its attached
flexure 3, the gimbling of the flexure 3 will remain preserved so
that it may gimble the head 2 during flying of the head 2 on its disk
(not shown), but be constrained sufficiently to prevent plastic
deformation at either the weld line or at the line where the flexure
legs 7 join the flexure tongue 8.  Thus in essence, the flexure 3
will sustain the same G-Loads as the load beam 5 before plastic
deformation sets in.

      Formed tabs 6 are provided on both the load beam 5 and the
flexure 3 so that they interlock at the time that the flexures 3 are
welded to the load beams 5.  The figure shows two tabs 6a on the
flexure and two mating tabs 6b on the load beam 5.  Clearance is
maintained between the tabs 6 except when the head/flexure subset
(defined as the c...