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Browse Prior Art Database

Self-Centering Device for Push-Button Switch Caps

IP.com Disclosure Number: IPCOM000101499D
Original Publication Date: 1990-Aug-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 3 page(s) / 86K

Publishing Venue

IBM

Related People

Cooke, KK: AUTHOR [+3]

Abstract

This article describes a self-centering device for a push-button switch cap in a personal computer (PC) utilizing a molded guide which extends one millimeter inward on the right and left sides of the power bezel opening. The guide is molded at the rear of the opening, extending towards the front of the bezel.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Self-Centering Device for Push-Button Switch Caps

       This article describes a self-centering device for a
push-button switch cap in a personal computer (PC) utilizing a molded
guide which extends one millimeter inward on the right and left sides
of the power bezel opening.  The guide is molded at the rear of the
opening, extending towards the front of the bezel.

      The introduction of push-button switches for PC systems has
solved a useability problem with handicapped individuals who lack the
ability to easily operate the toggle-type switch previously used.
Push-button switches require less activation force (the ability to
turn on the power supply) which makes them ideal for those that use
other methods than their hands to activate the power supply.  In
addition, non-handicapped individuals complained that the system
could be powered on/off prematurely by a foot or trouser cuff that
happens to come in contact with the toggle-type switch in
floor-standing systems.

      Fig. 1 is a front view of the power bezel showing the power
switch.  Fig. 2 is a section across A-A of Fig. 1 showing a top view
of the switch cap and bezel opening. Fig. 3 is a top view of the
switch and switch cap assembly showing the horizontal movement of the
switch plunger.

      The design of the device disclosed herein provides a means to
center the switch cap within the opening of the power bezel as well
as keep the switch from contacting the right and left sides of the
opening during activation and deactivation.  The guide is molded and
extends one millimeter inward on the right and left sides of the
power bezel...