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TORQUE DELAY COUPLING

IP.com Disclosure Number: IPCOM000025190D
Original Publication Date: 1983-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 79K

Publishing Venue

Xerox Disclosure Journal

Abstract

In many applications, for example, electrostatographic reproducing machines, it is desirable to reduce the start up torque spike when a primary drive motor is activated. The Figure illustrates a torque delay coupling for this purpose which comprises an input shaft 10 and input gear 12, together with an output shaft 20 and output gear 18. A torsion spring 22 is mounted between the input gear 12 and output gear 18 and is the only connection between the input and output other than the gears when the input shaft is not turning. When the input shaft turns, the torsion spring retards the rotation of the input gear causing relative motion

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KEROX DISCLOSURE JOURNAL

TORQUE DELAY COUPLING Proposed Mark F. Hurwitz Classification

U.S. Cl. 411/1 Int. CI. F16b 31/00

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In many applications, for example, electrostatographic reproducing machines, it is desirable to reduce the start up torque spike when a primary drive motor is activated. The Figure illustrates a torque delay coupling for this purpose which comprises an input shaft 10 and input gear 12, together with an output shaft 20 and output gear 18. A torsion spring 22 is mounted between the input gear 12 and output gear 18 and is the only connection between the input and output other than the gears when the input shaft is not turning. When the input shaft turns, the torsion spring retards the rotation of the input gear causing relative motion

Volume 8 Number 6 November/December 1983 527

[This page contains 1 picture or other non-text object]

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TORQUE DELAY COUPLING (Cont'd)

between the input shaft and the input gear. This relative rotation motion causes the input gear to be driven forward towards the output gear by the pin 16 in the helical slot 14 in the input shaft. When the two gears mate the coupling action is complete and the output shaft rotates at the same speed as the input shaft, it being noted that the output shaft is fixed to the output gear. When the input shaft stops turning the energy stored in the torsion spring is release which causes the input gear to rotate and move back away from the output gear. This returns the system...