Browse Prior Art Database

Actuator Lock

IP.com Disclosure Number: IPCOM000119624D
Original Publication Date: 1991-Feb-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Nanke, K: AUTHOR [+3]

Abstract

Disclosed is a device that locks access mechanism of 3.5" magneto-optical disk drive to prevent damage due to external shock and vibration for non-operating conditions. As this device is linked to load/ unload mechanism of cartridge which is driven by small DC motor, it does not need extra power to drive. Also it is small to fit in 3.5" drive form factor.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 66% of the total text.

Actuator Lock

      Disclosed is a device that locks access mechanism of 3.5"
magneto-optical disk drive to prevent damage due to external shock
and vibration for non-operating conditions. As this device is linked
to load/ unload mechanism of cartridge which is driven by small DC
motor, it does not need extra power to drive. Also it is small to fit
in 3.5" drive form factor.

      The device will be best understood with reference to Fig. 1
which schematically shows the movement of the actuator lock.
Actuator lock 1 is riveted to bracket 2 which is fixed on base 3.
The actuator lock rotates around rivet 4 freely.  Pin 5 on down
slider is linked to the elongated hole 6 on the actuator lock.  As
the elongated hole is slanted to the movement of pin 5, the actuator
lock rotates when pin 5 moves to the front and back.  When loading
the cartridge, pin 5 moves to the back of the drive and wave form
bracket 7 moves down (actuator lock release).  When unloading the
cartridge, pin 5 moves to the front of the drive and wave form
bracket 7 moves up (actuator lock).

      The sequence of the actuator lock is described as follows.
When the user pushes the eject button of the drive to eject the
cartridge, the spindle motor on the drive stops.  Then, the access
mechanism moves to the back side of the drive and touches against the
outer crash stop 8 by microcode control.  While the access mechanism
is positioned by the outer crash stop, the DC motor moves down slide
and p...