Browse Prior Art Database

Extraction Mechanism for Top Card Crossover Connector

IP.com Disclosure Number: IPCOM000044996D
Original Publication Date: 1983-Jan-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Sassen, B: AUTHOR

Abstract

Top-card crossover connectors linking five or more circuit cards are not ordinarily utilized due to the large extraction force required that may cause injury to the handler. The top-card connector described herein automatically disengages itself from the cards upon the raising of a handle and is a safer configuration. Fig. 1 shows a six-position top-card crossover connector (TCCC) similar to a four-position connector in present use. A handle and pressure pins have been added and the housing and board segment modified to accept the handle and pins.

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Extraction Mechanism for Top Card Crossover Connector

Top-card crossover connectors linking five or more circuit cards are not ordinarily utilized due to the large extraction force required that may cause injury to the handler. The top-card connector described herein automatically disengages itself from the cards upon the raising of a handle and is a safer configuration. Fig. 1 shows a six-position top-card crossover connector (TCCC) similar to a four-position connector in present use. A handle and pressure pins have been added and the housing and board segment modified to accept the handle and pins.

A molded housing 1 has two apertures, such as aperture 1a, in its cross members to accept a rod 2 and two apertures, such as aperture 3a, in bosses within its body to accept pressure pins 3. Board segment 4 has pins 8 integrally incorporated therein and clearance holes for the pressure pins. The clearance holes are easily accommodated by shifting the printed circuit lines in the vicinity of the holes. Handle 5 has two cam-shaped lobes 5a, 5b below rod 2.

An array 7 of six printed circuit cards have SLT (solid logic technology) connectors 6 mounted thereon. Array 7 is retained in a suitable circuit card cage (not shown).

In operation, raising the handle from its flat or closed position actuates pins 3 applying pressure to the mating SLT connectors 6 (shown disengaged), thus forcing the TCCC pins 8 off the contacts.

Connector length can be varied to cover any number of...