Browse Prior Art Database

Card Guide Bezel Combination And Multi-Purpose Insert/Extract Latch

IP.com Disclosure Number: IPCOM000099548D
Original Publication Date: 1990-Feb-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 3 page(s) / 98K

Publishing Venue

IBM

Related People

Ashton, GL: AUTHOR [+3]

Abstract

Circuit cards are designed in a multitude of profiles and cross-sections. In each case, a personalized guidance system is designed to accommodate each individual card. In many cases, the guidance/stiffening devices are combined into a relatively complex part which reduces card assembly time or may be comprised of several loose parts which create assembly problems.

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Card Guide Bezel Combination And Multi-Purpose Insert/Extract Latch

       Circuit cards are designed in a multitude of profiles and
cross-sections.  In each case, a personalized guidance system is
designed to accommodate each individual card.  In many cases, the
guidance/stiffening devices are combined into a relatively complex
part which reduces card assembly time or may be comprised of several
loose parts which create assembly problems.

      In order to adapt to a multiplicity of card widths and
technologies, card rail 1 was designed (see Fig. 1).  The material
composition of such a guide rail can be simply a formed sheet metal
stamping mechanically fastened to the card 2.  The part could also be
molded from a polymeric material for ease of manufacturability.
Proper selection of materials aids in improved stiffness, along with
reducing friction between sliding surfaces.  In either case, the
material should be one that would bleed off an electrostatic charge.

      Attached directly to the top and bottom guide rails is a bezel
plate 3 made preferably from a steel stamping.  This bezel supports
and locates the I/O cable connectors which interface with external
peripheral cables.  The bezel plate would be designed as simply a
base bracket with no particular connector openings but would adapt to
any number of connector schemes (Illustrated is an off-the-shelf
right angle 'D' shell connector 4.)  A tab 5 on the end of the guide
rail would project out of slotted openings in the bezel plate to be
used as a mount for a card insert/extract latch 6.  Illustrated is
the multipurpose Insert/Extract Card Latch, which is included as part
of this disclosure.

      The multi-purpose I/E latch is unique from commercially
available I/E latches because it has four pivot positions (see Fig.
3).  This allows the latch to be mounted in any of the four numbered
locations depending on the application of the card.

      If no card guide is used, the latch can be mounted directly to
the card using pivot position 1 or 2, depe...