Browse Prior Art Database

Power Switch Knob with Stopper

IP.com Disclosure Number: IPCOM000123307D
Original Publication Date: 1998-Sep-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Nagai, M: AUTHOR

Abstract

Disclosed is a power switch knob design to prevent accidental power 0n/Off by miss-operation. A power switch by slide operation loacated outer surface of the system can be unintentionally operated. This switch knob has a projection and it stopps to operate when unintentional direction force was applied.

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Power Switch Knob with Stopper

   Disclosed is a power switch knob design to prevent
accidental power 0n/Off by miss-operation.  A power switch by slide
operation loacated outer surface of the system can be
unintentionally operated.  This switch knob has a projection and it
stopps to operate when unintentional direction force was applied.

   A typical construction of a power switch is shown in
the Fig. 1.  The power switch knob is constructed by three parts.
(1) is the out r surface where the user touches and operates.  (2) is
the guide piece which engages with guide opening (4) located at the
side wall of the system box.  By guide piece (2), the switch knob
slides along with guide opening (4).  (3) is the actuator and actualy
pushes the power switch (5) when the switch knob slided forward.  (6)
is the return spring which holds the switch knob at home position.
(6) is located in line with the axis of slide movement.

   Disclosed power switch knob has the projection (a).  This
is the stopper.  System wall opening has mating knotch (b).

   By proper, intentional operation, switch knob is operated
toward correct direction by guide (2),(4) and return spring(6).  Most
of unintentional touching power switch knob case is "hold and move"
the system.  In such case, upward force is applied to the power
switch.  With this structure, the switch knob will slide upward first
and the projection(a) will be stopped by knotch(b).  Then accidental
operation is prevented.