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DRIVE ARRANGEMENT

IP.com Disclosure Number: IPCOM000026136D
Original Publication Date: 1990-Aug-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 84K

Publishing Venue

Xerox Disclosure Journal

Abstract

It is sometimes-required that a rotatable component should be engaged by another component before it is actually driven. The drive arrangement described below uses the reverse rotation of a motor to bring two components into engagement with one another before drive is applied, by the motor, to rotate at least one of them. The arrangement can be used, for example, in a xerographic reproduction machine to bring a pressure roll into engagement

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XEROX DISCLOSURE JOURNAL

DRIVE ARRANGEMENT

Proposed J. W. D. Cooper Classification

U.S. C1.192/048.1 Int. C1. F16d 27/08

I 4

XEROX DISCLOSURE JOURNAL - VO~. 15, NO. 4 July/August 1990 195

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DRIVE ARRANGEMENT(C0nt'd)

It is sometimes-required that a rotatable component should be engaged by another component before it is actually driven. The drive arrangement described below uses the reverse rotation of a motor to bring two components into engagement with one another before drive is applied, by the motor, to rotate at least one of them. The arrangement can be used, for example, in a xerographic reproduction machine to bring a pressure roll into engagement

with a fuser roll before the rolls are rotated or to bring a cleaning blade into contact with a belt or roller before the latter is rotated.

The arrangement is shown schematically in the drawing and will be described as applied to the fuser of a xerographic reproduction machine. The reversible motor is indicated at 1 and is coupled through a one-way clutch at 2 to the drive shaft 3 of the fuser roll (not shown) of the fuser. The reversible motor 1 is also coupled through another one-way clutch at 4 to a cam 5 which, when rotated, causes the pressure roll (not shown) of the fuser to engage with, or disengage from, the fuser roll. The clutch 2 is effective to transmit drive during normal operation of the motor 1 while the clutch 4 is effective to trans...