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Browse Prior Art Database

Improving Stepping Motor Accuracy

IP.com Disclosure Number: IPCOM000077045D
Original Publication Date: 1972-Jun-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Mathurin, EL: AUTHOR [+2]

Abstract

An improved stepping motor 10 incorporates a modified multipin Geneva drive mechanism 12. Drive pins 14 are added to the crank wheel 16 of the Geneva mechanism, so that the total number of pins matches the number of steps per revolution of the stepping motor. As a result, a 10 degree rotation of the motor shaft 18 produces only a 2 degrees rotation of the output shaft, thereby making possible a 500% improvement in stepping motor accuracy. As an additional feature, when the stepping motor is in its home position, the output shaft is locked.

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Improving Stepping Motor Accuracy

An improved stepping motor 10 incorporates a modified multipin Geneva drive mechanism 12. Drive pins 14 are added to the crank wheel 16 of the Geneva mechanism, so that the total number of pins matches the number of steps per revolution of the stepping motor. As a result, a 10 degree rotation of the motor shaft 18 produces only a 2 degrees rotation of the output shaft, thereby making possible a 500% improvement in stepping motor accuracy. As an additional feature, when the stepping motor is in its home position, the output shaft is locked.

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