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Browse Prior Art Database

Multi-Purpose Tray

IP.com Disclosure Number: IPCOM000105780D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 68K

Publishing Venue

IBM

Related People

Lawlor, KJ: AUTHOR [+3]

Abstract

Disclosed is a stamped and formed steel tray, forming a framework member in a peripheral unit, including means for mounting an option device from above, a circuit card associated with the device and a lower cover from below, and a rear bezel from a rear surface. The tray, which is electrically grounded, includes a provision for grounding a shielded cable entering the unit from the rear. The tray also forms a conductive shield between the circuit card and the device and across the rear of the unit.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 63% of the total text.

Multi-Purpose Tray

      Disclosed is a stamped and formed steel tray, forming a
framework member in a peripheral unit, including means for mounting
an option device from above, a circuit card associated with the
device and a lower cover from below, and a rear bezel from a rear
surface.  The tray, which is electrically grounded, includes a
provision for grounding a shielded cable entering the unit from the
rear.  The tray also forms a conductive shield between the circuit
card and the device and across the rear of the unit.

      A multi-purpose tray 1 extends horizontally between an option
device 2, such as a diskette drive unit, and a circuit card 3, which
is associated with device 2.  Device 2 is fastened to tray 1 by four
screws 4 extending upward through holes 5.  Circuit card 3 is
fastened to tray 1 by four screws 6 engaging threaded holes 7.

      Various electrical signals are transmitted to and from the
peripheral unit by means of a multi-conductor cable 8 extending
through a cable receiving slot 9 in the upturned rear wall 10 of tray
1.  The outer surface of cable 8 is formed by an insulated layer 11,
which is cut away in a section extending through slot 9 to expose a
conductive braided shield 12.  A number of contact points 13 are
provided around the arcuate lower end of slot 9 so that effective
electrical grounding is obtained between shield 12 and tray 1, as
required for proper shielding of the cable.

      Electrical connections betwee...