Browse Prior Art Database

Suspension Assembly with Torsion-Proof Stiffeners

IP.com Disclosure Number: IPCOM000104315D
Original Publication Date: 1993-Apr-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Satoh, T: AUTHOR [+2]

Abstract

Disclosed is a head suspension assembly structure for raising its normal frequencies, especially for both the first torsional mode (T1) and the first tangential mode (T2), to reduce their gains. The suspension assembly has two transverse stiffeners for T1 and T2 on a hinge area as shown in the figure.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Suspension Assembly with Torsion-Proof Stiffeners

      Disclosed is a head suspension assembly structure for raising
its normal frequencies, especially for both the first torsional mode
(T1) and the first tangential mode (T2), to reduce their gains.  The
suspension assembly has two transverse stiffeners for T1 and T2 on a
hinge area as shown in the figure.

      The figure shows the example of this invention.  Two transverse
stiffeners for T1 and T2 are formed at a hinge when a etched load
beam is formed and two flanges are made.  The one at the root of a
hinge is a stiffener for T1 and the other at the other end of a hinge
is for T2.  Since the two stiffeners are located transversely on a
suspension assembly, they do not deteriorate its gram load and spring
rate.  Thus, a suspension with the two stiffeners on a hinge can be
stiffened against its torsional and tangential vibrations and, as a
consequence, the head suspension assembly can raise its normal
frequencies and reduce its gains.

      The stiffeners in the figure are transverse channels on a
hinge.  But, the variations of the stiffeners, such as a sectional
geometry, height and width, are chosen by simulation or experiment in
accordance with applications.  Furthermore, the stiffeners can not
only be made by a forming process, but by any other kind of
processes.