Browse Prior Art Database

RECIPROCATING SLING

IP.com Disclosure Number: IPCOM000026292D
Original Publication Date: 1991-Feb-28
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 81K

Publishing Venue

Xerox Disclosure Journal

Abstract

A reciprocating sling assembly which reduces excessive torque and unnecessary gear wear in fusing systems of electrophotographic printing and copy machines is disclosed. A cam or linkage attached to a pressure plate and actuated by way of solenoids in the fusing system of a Xerox 2510 Tx copier and related machines reduces torque spikes and reduces gear wear friction deterioration.

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XEROX DISCLOSURE JOURNAL

RECIPROCATING SLING

Donald L. Pease David A. Bartman Daniel L. Morris

Proposed Classification
U.S. C1.3551282 Int. C1. G03g 15/20

FIG. 2

2

3

SOLENOID

XEROX DISCLOSURE JOURNAL - Vol. 16, No. 1 January/February 1991 57

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RE C I P R 0 C AT1 NG SLING ( C on t 'd)

A reciprocating sling assembly which reduces excessive torque and unnecessary gear wear in fusing systems of electrophotographic printing and copy machines is disclosed. A cam or linkage attached to a pressure plate and actuated by way of solenoids in the fusing system of a Xerox 2510 Tx copier and related machines reduces torque spikes and reduces gear wear friction deterioration.

Friction forces resulting from the band brake effect of certain fusing systems may be approximated by the second order equation: TL = Ts e 14, where Ts is a resultant of Np, TL = Np e PO, and where p the kinetic coefficient of friction according to Figure 1. The value p was found to: a.) increase with roll speed, and b.) decrease with temperature and the amount of release agent oil applied. Measured variation in p was from 0.15 to 4.0 with cold starting at 3 inches per second as a worst case measured.

By mechanically removing the normal force N during the worst case conditions, excessive gear wear may be controlled. This is easily implemented in practice by a cam 1 or linkage attached to a pivoting pressure plate 2 that is actuated by two so...