Browse Prior Art Database

Means for Positioning and Driving a Mechanism Via a Single Motor

IP.com Disclosure Number: IPCOM000123829D
Original Publication Date: 1999-May-01
Included in the Prior Art Database: 2005-Apr-05
Document File: 2 page(s) / 63K

Publishing Venue

IBM

Related People

Fahey, DM: AUTHOR

Abstract

Disclosed is a rigid mechanism with a single motor.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 60% of the total text.

Means for Positioning and Driving a Mechanism Via a Single Motor

   Disclosed is a rigid mechanism with a single motor.

   A common feature in automatic teller machines and conveyor
systems is the need for a mechanism to move a rigid body along a
complex path.  Such a path sometimes requires that a rigid mechanism
pivot about a fixed point prior to passing the object along.  This
typically requires two drive sources, one to pivot the mechanism and
one to drive the payload through the mechanism.  This invention saves
the cost of an additional motor in cases where a mechanism that
itself uses a motor as a drive source must pivot through an arc prior
to performing some other function.

   The invention at hand consists of a rigid mechanism with a
single motor that provides impetus for both pivoting and feeding.
The key to the invention is a series of pawls, clutches, or other
similar one-way driving devices that engage and disengage depending
on the position of the mechanism about its pivot.

   The figure shows mechanism A, which pivots about point B,
at the counter-clockwise extreme of its travel.  At this point
linkage C has engaged pawl F so that gear G can rotate relative to
the frame of A only in a clockwise direction.  If drive gear D
drives counter-clockwise, gear G and hence all of mechanism A will
pivot clockwise about point B until it reaches its clockwise limit.
At this point linkage C will disengage pawl F and engage pawl E. Gear
G will then be free to r...