Browse Prior Art Database

Card Adapter for Mounting Circuit Cards

IP.com Disclosure Number: IPCOM000115674D
Original Publication Date: 1995-Jun-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Hamilton, RD: AUTHOR [+3]

Abstract

A card adapter that has a unique arrangement of plastic spring sections for mounting circuit cards is disclosed.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Card Adapter for Mounting Circuit Cards

      A card adapter that has a unique arrangement of plastic spring
sections for mounting circuit cards is disclosed.

      The card adapter has a pin feature that mounts in a hole in the
circuit card.  Three spring clamp sections and a boss on the adapter
hold the adapter to the card edge.  Each spring section has an
arrangement of integral springs (Fig. 1).

      The multiple integral spring sections can deflect
simultaneously and prevent any one section from being overstressed.

      As shown in Fig. 2, the design has five spring sections: (2)
is a curved top spring that presses against the top inside cover
surface of an electronics enclosure to preload and hold the adapter
in place against the bottom of the enclosure, (1) is a bottom spring
section that holds the circuit card in place within the adapter, (3)
is a central spring beam that can deflect up or down to balance the
forces of the top and bottom springs, reducing the stresses in these
members, (4) are torsional spring sections that can rotate and
thereby reduce the stresses in the beam (3), (5) are upright column
sections that can flex, reducing the stresses in the torsional
sections (4).  This chained arrangement of springs lowers the
stresses in each integral spring section, resulting in shorter
sections and a compact design.