Browse Prior Art Database

Board Clamp

IP.com Disclosure Number: IPCOM000101844D
Original Publication Date: 1990-Sep-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Boswell, G: AUTHOR [+2]

Abstract

A clamping method to hold the logic boards of electronic subassemblies in equipment, such as disk files, employs a single part snap-in molded cam fitted on the vertical wall of a subframe and detented by a tooth feature formed in the vertical wall.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 80% of the total text.

Board Clamp

       A clamping method to hold the logic boards of electronic
subassemblies in equipment, such as disk files, employs a single part
snap-in molded cam fitted on the vertical wall of a subframe and
detented by a tooth feature formed in the vertical wall.

      Manufacturing benefits are the ability to clamp adequately
within a limited space while taking out assembly tolerance, operation
from either side of a wall, and easy fitting.

      Referring to the figure, an electronics board 1 is to be
clamped into a thin metal subframe 2 by downward pressure from the
heel 4 of a clamp molding 5.  Lateral movement of the board 1 is
constrained by boundaries within the equipment assembly.  Other
identical clamping devices may be fitted where necessary around the
board.  Subframe 2 is formed with a mounting hole 3 countersunk to
accept a bulbous slotted end of spigot 6 on clamp molding 5.  Also
formed in subframe 2 is a tooth at the end of tab 9 to mate
with teeth 7 on clamp 5.  Teeth 7 provide a detent for varying
positions of clamp 6 relative to tab 9.

      To clamp a board in the subframe, clamp 5 is brought towards
hole 3 a few degrees anticlockwise of perpendicular, and spigot 6 is
pressed into hole 3 with a snap action as slotted ends 6 spring into
the countersunk side of hole 3. Spigot 6 can now be twisted clockwise
by hand on the clamp or by means of a screwdriver blade 10,
compressing cam heel 4 against the top edge of board and clamping...