Browse Prior Art Database

WRAP SPRING FRICTION DRIVE CLUTCH

IP.com Disclosure Number: IPCOM000025083D
Original Publication Date: 1983-Aug-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 61K

Publishing Venue

Xerox Disclosure Journal

Abstract

A wrap spring clutch is disclosed as having an input hub I, an output hub 2, and a wrap spring 3. A solenoid (not shown), when energized, actuates a ratchet collar 4 to extend one end of the spring 3 thereby effecting wrapping down of the coils of the spring on the friction face of the output hub 2, producing rotation thereof. A circular friction plate 6 is secured to one end of the output hub and rotates therewith. An output shaft 7 is connected to a circular friction plate 8 positioned in axial alignment with and spaced from the plate 6. Drive motion is imparted from the input plate 6 to the output plate 8 by a pair of Belleville springs 10 positioned between the plates 6, 8 and encircling the shaft 7. Upon energization of the solenoid to produce rotation of the plate 6, the Belleville springs act against the friction plates 6, 8 first by slipping and then transmitting motion to the output shaft.

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WRAP SPRING FRICTION DRIVE CLUTCH Proposed Eugene Manno U.S. Cl. 192/12 Classification

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Int. Cl. B60k 41/24

7

A wrap spring clutch is disclosed as having an input hub I, an output hub 2, and a wrap spring 3. A solenoid (not shown), when energized, actuates a ratchet collar 4 to extend one end of the spring 3 thereby effecting wrapping down of the coils of the spring on the friction face of the output hub 2, producing rotation thereof. A circular friction plate 6 is secured to one end of the output hub and rotates therewith. An output shaft 7 is connected to a circular friction plate 8 positioned in axial alignment with and spaced from the plate 6. Drive motion is imparted from the input plate 6 to the output plate 8 by a pair of Belleville springs 10 positioned between the plates 6, 8 and encircling the shaft 7. Upon energization of the solenoid to produce rotation of the plate 6, the Belleville springs act against the friction plates 6, 8 first by slipping and then transmitting motion to the output shaft.

Volume 8 Number 4 July/August 1983 30 1

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  XEROX DISCLOSURE JOURNAL Volume 8 Number 4 July/August 1983

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