Browse Prior Art Database

Grasp Enhancement for Circuit Cards

IP.com Disclosure Number: IPCOM000113208D
Original Publication Date: 1994-Jul-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Barney, JR: AUTHOR

Abstract

Described is a hardware implementation to add a knurled or textured surface to circuit cards so as to increase the grasping capability of the card.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 79% of the total text.

Grasp Enhancement for Circuit Cards

      Described is a hardware implementation to add a knurled or
textured surface to circuit cards so as to increase the grasping
capability of the card.

      Typically, a circuit card, as used in personal computers, can
be designed to be removed by the user.  Physically handicapped
persons may have difficulty in removing the card due to the smooth
edges and thickness of the card.  The concept described herein
provides a means of aiding in the insertion and removal of the card
from a system.  A knurled or other texture is provided to make it
easier to grasp the card's edges positively during insertion and
withdrawl of the card.  In addition, the texture or knurl provides a
subtle but explicit intuitive clue indicating the correct end of the
card to grasp for insertion.  The tactile clue is especially helpful
to users with visual disabilities.

      The knurled, or other tactile texture area, is applied to the
portion of the card nearest to the user so as not to interfere with
the functioning of the portion of the card which is inserted into an
adapter slot.  For example, a single fine or medium knurl with the
lands and valleys perpendicular to the surfaces of the card can be
employed.  Tactile textures are those which are compatible with the
manufacturing processes used to make the cards and materials used in
the process.  The tactile fixtures covered are those in which
contamination will not accumulate during norma...