Browse Prior Art Database

Card Retention System

IP.com Disclosure Number: IPCOM000059671D
Original Publication Date: 1986-Jan-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Pimienta, O: AUTHOR [+3]

Abstract

A technique is described whereby circuit cards which are plugged into microprocessor systems are retained in card holders through the use of a card guide locking arrangement, so as to prevent the circuit cards from becoming unseated or from becoming dislodged due to vibration. The card guide, as shown in Fig. 1, is fabricated with two sets of serrated teeth 10. The card guide lock 15, as shown in Fig. 2, also has two sets of serrated teeth of the same pitch and size as those in the card guide. After a circuit card is installed using the card guide, card guide lock 15 is inserted between the end section 11 of the card guide. The serrated teeth of both parts will mesh together to form a restrictive force against the circuit card. This restriction will prevent the circuit card from becoming dislodged.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 91% of the total text.

Page 1 of 2

Card Retention System

A technique is described whereby circuit cards which are plugged into microprocessor systems are retained in card holders through the use of a card guide locking arrangement, so as to prevent the circuit cards from becoming unseated or from becoming dislodged due to vibration. The card guide, as shown in Fig. 1, is fabricated with two sets of serrated teeth 10. The card guide lock 15, as shown in Fig. 2, also has two sets of serrated teeth of the same pitch and size as those in the card guide. After a circuit card is installed using the card guide, card guide lock 15 is inserted between the end section 11 of the card guide. The serrated teeth of both parts will mesh together to form a restrictive force against the circuit card. This restriction will prevent the circuit card from becoming dislodged. Angle 12 of the card guide lock 15 is designed to mesh with the angle 13 provided on card stiffener 14 portion of the circuit card, as shown in Fig. 3, to prevent the circuit card and its stiffener from becoming dislodged. Section A-A of Fig. 1 shows the use of filler 16, which is used to prevent the card guide lock from lifting out of the card guide. Card stiffener 14, as shown in Fig. 3, is inserted into the card guide, and, when the circuit card is properly seated into its backboard, card guide lock 15 is inserted into the card guide until it presses firmly against card stiffener 14. Card guide lock 15 will mesh with the card guide at the serra...