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Browse Prior Art Database

Support Clip for Card Covers

IP.com Disclosure Number: IPCOM000034153D
Original Publication Date: 1989-Jan-01
Included in the Prior Art Database: 2005-Jan-26
Document File: 3 page(s) / 118K

Publishing Venue

IBM

Related People

Cimijotti, RL: AUTHOR [+2]

Abstract

A design for a low-cost, hand-installed clip 10 is shown that will rigidly hold the open end of covers 7 in place, eliminating flexure and preventing latch failure while, at the same time, accurately spacing covers 7 apart and eliminating binding or interference while installing either covered cards 1 or 3. Minimum space between covered cards 3 is used, allowing the maximum utilization of the available volume and, since the clip is designed as a horizontal divider, guides are produced that materially aid the user in getting daughter cards 3 started in the correct position for insertion. Referring to Fig.

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Support Clip for Card Covers

A design for a low-cost, hand-installed clip 10 is shown that will rigidly hold the open end of covers 7 in place, eliminating flexure and preventing latch failure while, at the same time, accurately spacing covers 7 apart and eliminating binding or interference while installing either covered cards 1 or 3. Minimum space between covered cards 3 is used, allowing the maximum utilization of the available volume and, since the clip is designed as a horizontal divider, guides are produced that materially aid the user in getting daughter cards 3 started in the correct position for insertion. Referring to Fig. 1, a covered logic card 1 that inserts and plugs into electronic logic cage 2 is designed to accept smaller covered "daughter" logic cards 3 which are individually customer installable and act to allow featurability of the system. Latches 4 on covered

(Image Omitted)

daughter cards 3 are equipped with arms 5 that engage features 6 on covered card 1 and serve to cam daughter card 3 into position and retain it in place. Covers 7 on covered logic card 1 are constructed of alloy die castings and are extremely thin. This is due to the close spacing between covered cards 1 in cage
2. The limited clearance, both horizontally and vertically, between covered daughter cards 3 and opening 8 in covered card 1. Flexing of covers 7 during operation of latches 4 can cause latch arms 5 to disengage from features 6, causing failure of the latching system; additionally, casting of the extremely thin sections in covers 7 is difficult and out of flat conditions can result that may cause interfer...