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Mount-Plate Design for Hard Disk Drive Lowprofile Stacking Actuator

IP.com Disclosure Number: IPCOM000122786D
Original Publication Date: 1998-Jan-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 4 page(s) / 91K

Publishing Venue

IBM

Related People

Inoue, H: AUTHOR [+2]

Abstract

Disclosed is a new concept Mount-Plate Design used for stacking an actuator in a Hard Disk Drive (HDD). Fig. 1 shows the outlook of an ordinary Stacking Actuator which is in the small HDD. The actuator consists of a Head Gimbal Assembly (HGA), Spacer, Washer, VCM-Coil, etc. (Fig. 2). The Mount-Plate, which is one of a constituent part of the HGA, is usually flat-form, as shown in Fig. 3. 1. To get a lower Actuator Height, the Mount-Plate is bent and the Z-Height is offset in the stacking area (Fig. 4a). 2. A pair of Mount-Plates are placed at both sides of a disk, stacked without any other parts. This eliminates Spacer Parts and has the advantage of Parts Numbers reduction (Fig. 4b).

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Mount-Plate Design for Hard Disk Drive Lowprofile Stacking Actuator

      Disclosed is a new concept Mount-Plate Design used for stacking
an actuator in a Hard Disk Drive (HDD).  Fig. 1 shows the outlook of
an ordinary Stacking Actuator which is in the small HDD.  The
actuator consists of a Head Gimbal Assembly (HGA), Spacer, Washer,
VCM-Coil, etc. (Fig. 2).  The Mount-Plate, which is one of a
constituent part of  the HGA, is usually flat-form, as shown in Fig.
3.
  1.  To get a lower Actuator Height, the Mount-Plate is bent
       and the Z-Height is offset in the stacking area (Fig. 4a).
  2.  A pair of Mount-Plates are placed at both sides of a disk,
       stacked without any other parts.  This eliminates Spacer
       Parts and has the advantage of Parts Numbers reduction
       (Fig. 4b).

      Fig. 5 shows an Actuator Side-View of the Current Concept and
the New Concept which includes both 1) and 2).