Browse Prior Art Database

Stack Loader using a Random Access Disk Stack Accessor

IP.com Disclosure Number: IPCOM000113496D
Original Publication Date: 1994-Aug-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 4 page(s) / 84K

Publishing Venue

IBM

Related People

Dang, CH: AUTHOR [+2]

Abstract

A stack loader concept involving a random accessing process of any disk in a close-packing disk stack.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Stack Loader using a Random Access Disk Stack Accessor

      A stack loader concept involving a random accessing process of
any disk in a close-packing disk stack.

The design of this invention, as illustrated in Fig. 1, comprises:

o   A stack of disks 1 having center co-linear, contained in a
    cartridge shell 12, each disk has a center hole, a thin washer 2
    is bonded to one side of said disk, the center hole of the washer
    2 has the same center as the disk and has a smaller radius than
    that of the disk center hole and has at least one cut-out section
    7 (Fig. 2), all disks in the stack must have their washer faced
    in one direction.

o   A holder 3 to support the disk stack in the vertical direction,
    the disk stack can be inserted into the holder 3 from the sides
    or from the bottom opening.

o   A picker rod 4 which is mounted onto an arm 5 and is rotated by a
    motor 6, at the end of the picker rod 4, there is at least one
    blade 8 with the same shape as of the cut-out 7 and its thickness
    is smaller than that of the disk, with proper linear and angular
    alignments, the picker rod can be inserted through the washer
    center hole.

o   A guider 9 which can slide along the picker rod 4 and is pushed
    toward the end of the picker rod 4 by compression spring 10.

o   An accessor 11 which can be positioned at three locations: Disk
    receiving location 15 between the separated disk stack, parking
    location 16 at one side next to location 15 and the loading tray
    18 of the drive 13, to simplify the design, the drive can slide
    between locations 15 and 16, allowin...