Browse Prior Art Database

TORQUE DELAY COUPLING Disclosure Number: IPCOM000025190D
Original Publication Date: 1983-Dec-31
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


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