Browse Prior Art Database

Terminal Key Connector

IP.com Disclosure Number: IPCOM000101658D
Original Publication Date: 1990-Aug-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 3 page(s) / 91K

Publishing Venue

IBM

Related People

Artigues, CA: AUTHOR [+4]

Abstract

This article describes a keyboard connector wherein a multitude of keyboard configurations can be made with a standardized keyboard base. Pluggable units of keys are replaceable by the user so that a standardized base can be used with numerous different using devices.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 59% of the total text.

Terminal Key Connector

       This article describes a keyboard connector wherein a
multitude of keyboard configurations can be made with a standardized
keyboard base.  Pluggable units of keys are replaceable by the user
so that a standardized base can be used with numerous different using
devices.

      Referring to the drawings, Fig. 1 shows a perspective view of a
standardized keyboard with replaceable keyset having a base 1 with
various common keys on the main unit. A section of the board is
reserved for a pluggable key unit 2.  The key unit in dashed lines 3
shows the pluggable key unit removed.  Several different varieties of
pluggable key units are provided.  Whichever one is suitable for a
particular application is plugged into a printed circuit board in the
base.

      Fig. 2 is a perspective exploded view showing the details of a
pluggable key unit.  Top cover 4 positions keys 5.  The keys are
mounted on spring-loaded key switches 6 which are mounted to printed
circuit board 7.  When a key is pressed, the key switch 6 sends a
signal through a line 8 to the appropriate terminal 10 on connector
9.

      The particular pluggable key unit shown herein is for a virtual
machine type environment, with the upper two rows for screen
manipulation keys and the bottom three rows for cursor keys.  The
connector 9 has enough terminals 10 available so that each key has a
unique position on the connector 9.  The lines on the printed circuit
board 7 ru...