Browse Prior Art Database

Card On Board Retention System

IP.com Disclosure Number: IPCOM000090282D
Original Publication Date: 1969-Mar-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Curtin, PM: AUTHOR [+4]

Abstract

Positive circuit card retention with maximum convection cooling is afforded by this card-on-board retention system. The arrangement absorbs manufacturing tolerances without adversely affecting card securing ability. Holder 1 of rectangular shape has slots 2 in side rails 3 into which a printed circuit card is inserted. Central brace 4 has a hooked end 5 that is deflected to insert the card and returns to its normal position to press the circuit card upward against the top section of holder 1. Arcuate top rib 6, extending above holder 1, serves both as a handle, for extracting the holder and circuit card, and as a spring to apply downward pressure on holder 1 when it is mounted in carrier frame 7. Fastened to the sides of frame 7 are guides 8 having slots 9 that guide the card holders into position.

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Card On Board Retention System

Positive circuit card retention with maximum convection cooling is afforded by this card-on-board retention system. The arrangement absorbs manufacturing tolerances without adversely affecting card securing ability. Holder 1 of rectangular shape has slots 2 in side rails 3 into which a printed circuit card is inserted. Central brace 4 has a hooked end 5 that is deflected to insert the card and returns to its normal position to press the circuit card upward against the top section of holder 1. Arcuate top rib 6, extending above holder 1, serves both as a handle, for extracting the holder and circuit card, and as a spring to apply downward pressure on holder 1 when it is mounted in carrier frame 7. Fastened to the sides of frame 7 are guides 8 having slots 9 that guide the card holders into position. U-shaped bar 10, Pivotally mounted on frame 7, applies pressure to holders 1 via the flat rib when such holder is inserted in the carrier. A bar 10 is latched in position as at 11.

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