Browse Prior Art Database

Locating Mechanism for Personal Computer System Planar Boards

IP.com Disclosure Number: IPCOM000109373D
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2005-Mar-24
Document File: 2 page(s) / 81K

Publishing Venue

IBM

Related People

Falkenberg, E: AUTHOR [+4]

Abstract

Described is a locating mechanism designed to facilitate the positioning of planar boards, as used in personal computer (PC) systems. The mechanism provides alignment guides for locating the planar board on three axis, secures the board until mounting screws are applied and provides an electro-magnetic path to the frame.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 70% of the total text.

Locating Mechanism for Personal Computer System Planar Boards

       Described is a locating mechanism designed to facilitate
the positioning of planar boards, as used in personal computer (PC)
systems.  The mechanism provides alignment guides for locating the
planar board on three axis, secures the board until mounting screws
are applied and provides an electro-magnetic path to the frame.

      Typically, there are three time-consuming variables to be taken
into consideration when assembling a planar board to a PC system: a)
a planar grounding bracket at the rear of the input/output (I/O) area
must provide electro-magnetic contact and a solid grounding path to
the frame; b) multiple screw holes used to mount the planar board can
have a tolerance build-up making assembly difficult; and c) the
actual mounting of the planar board alignment to the cover and to
riser cards that may be installed.  The concept described herein
provides a locating mechanism to overcome the three time-consuming
variables.

      Fig. 1 shows an isometric view of a planar board as it is
positioned onto the chassis of the locating mechanism during
installation.  Two rear tab ramps 3, two side ramps 4 and two front
ramps 5 are used as guides during assembly of planar board 1 onto
chassis 2.  The ramps locate the planar board inside the system unit
in the X and Y axis so as to provide positive guidance and alignment
of planar board 1 during installation, thereby securing planar board
...