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Browse Prior Art Database

Manual Eject for Autoload on Tape Drive Cartridges

IP.com Disclosure Number: IPCOM000117406D
Original Publication Date: 1996-Feb-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 4 page(s) / 55K

Publishing Venue

IBM

Related People

Eckberg, EA: AUTHOR [+4]

Abstract

A manual eject feature for tape drives with autoloading mechanisms is disclosed.

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

Manual Eject for Autoload on Tape Drive Cartridges

      A manual eject feature for tape drives with autoloading
mechanisms is disclosed.

      As shown in Figs. 1 and 2, the embodiment of the manual eject
feature is shown with a belt drive system as the load/unload
mechanism.  The manual eject device can also be put on a rack and
pinion system, or any other system which utilizes a rotating shaft.

      A helical spring 1 with one side hooked to the chassis 2 and
the other hooked to the drive mechanism 3 is coiled up as the
cartridge is loaded.  The helical spring provides a longer wrap
distance without coil binding, and provides higher force when the
cartridge is at the fully loaded position, and lower force when the
cartridge is at the ejected  position.  The high force at the fully
inserted position helps overcome friction forces of the cartridge
against the datums, and the lower force at the ejected position keeps
the cartridge from being completely ejected from the drive
(cartridges falling on the floor is bad).

      In use, there's a push button on the front of the drive which
releases the pressure between the driving motor gear and the driven
gear shaft, by means of a long connecting shaft.  Once the gear drive
pressure is released, the spring can operate the mechanism and push
the cartridge out.  This feature is only used when power is lost or
the autoload system is not functioning.