Browse Prior Art Database

Floating Communication Book Cage

IP.com Disclosure Number: IPCOM000114802D
Original Publication Date: 1995-Feb-01
Included in the Prior Art Database: 2005-Mar-29
Document File: 4 page(s) / 73K

Publishing Venue

IBM

Related People

Colbert, JL: AUTHOR [+3]

Abstract

A communication book cage which is adjustable during machine assembly is being disclosed. The assembled cage moves out of the way so that a card stack can be installed. The cage then mounts directly to the card stack to provide proper alignment and minimize tolerance build up.

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This is the abbreviated version, containing approximately 65% of the total text.

Floating Communication Book Cage

      A communication book cage which is adjustable during machine
assembly is being disclosed.  The assembled cage moves out of the way
so that a card stack can be installed.  The cage then mounts directly
to the card stack to provide proper alignment and minimize tolerance
build up.

      Fig. 1 shows the comm cage.  It consists of two sheet metal
pieces spot welded together via flanges on each piece (1).  It
contains all the necessary features to allow a daughter book to slide
in and out and to function properly.  It also has two flanges with
thru holes (2) and two flanges with pierce and extrude holes (3) as
well as a series of openings (4) on either side for electromagnetic
compatibility (EMC) springs.

      To install the comm cage, one must take the cage with EMC
springs pre-assembled and push it through two flanges on the
machine's frame (Fig. 2).  The cage has to be pushed through the
flanges until two ledges on the comm cage (1) keep it from going
further (Fig. 3).  Once this step is completed, the comm cage is out
of the way and the card stack can be installed into the machine.

      Assuming that the process of installing the card set into the
machine is complete, the comm cage can be put in its final position.
To do this, the comm cage must be pushed back thru the flanges until
the two flanges with thru holes (1) contact a wall on the card stack
(2).  The comm cage is then screwed to the card stack via...