Browse Prior Art Database

Mounting Components in Subsystems

IP.com Disclosure Number: IPCOM000115925D
Original Publication Date: 1995-Jul-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Edmunds, A: AUTHOR [+3]

Abstract

Inserting components such as files into subsystems is usually achieved using a carrier, typically a metal carrier to which for example a file is fixed together with the support electronics to make up the carrier assembly. The carrier assembly is then pushed into the subsystem until the connector at the rear is fully mated. The problems encountered in inserting/removal of the carrier are the positive location of the carrier connector together with overcoming the insertion forces at a comfortable level for the operator and allowing for tolerances.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 93% of the total text.

Mounting Components in Subsystems

      Inserting components such as files into subsystems is usually
achieved using a carrier, typically a metal carrier to which for
example a file is fixed together with the support electronics to make
up the carrier assembly.  The carrier assembly is then pushed into
the subsystem until the connector at the rear is fully mated.  The
problems encountered in inserting/removal of the carrier are the
positive location of the carrier connector together with overcoming
the insertion forces at a comfortable level for the operator and
allowing for tolerances.

      The solution disclosed here takes the form of an
insertion/removal lever.  The lever is a plastic moulding
incorporating a catch which latches the lever to the carrier body
when fully home.  The lever is hand operated by releasing the
integrally moulded catch and rotated down by pulling.  The pulling
and rotating action cams the carrier out of the subsystem connector
with a mechanical advantage making the motion light for the user.
The forces involved act on the chassis metalwork as the lever engages
in a shaped slot in the chassis.  Insertion is the reverse of
removal.

      The lever and carrier mechanism also make use of a preload leaf
spring which ensures that there is a carrier retention force at all
times.  The spring also allows the mechanical tolerances of carrier
to chassis to be lost in the mechanism motion.  The motion of the
lever mechanism also gives...