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Browse Prior Art Database

ACCELERATION CONTROL OF WRAP SPRING CLUTCHES

IP.com Disclosure Number: IPCOM000024114D
Original Publication Date: 1979-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 129K

Publishing Venue

Xerox Disclosure Journal

Abstract

Typical wrap spring clutches have rapid engagement rates which result in high impact/torque forces on the clutched mechanisms, By interposing a layer of elastomer on an undercut in the shaft where the wrap spring drive engages, the acceleration can be slowed resulting in a soft start, This could also be accomplished by interposed sleeves of an elastomer or coating the wrap spring element. The thickness, durometer, friction, etc., of the interposed material can be varied to change the rate of acceleration.

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XEROX DISCLOSURE JOURNAL

ACCELERATION CONTROL OF WRAP Proposed Classification SPRING CLUTCHES U~S.CI. 192/12
~ mt. CL B60k 41/24

Typical wrap spring clutches have rapid engagement rates which result in high impact/torque forces on the clutched mechanisms, By interposing a layer of elastomer on an undercut in the shaft where the wrap spring drive engages, the acceleration can be slowed resulting in a soft start, This could also be accomplished by interposed sleeves of an elastomer or coating the wrap spring element. The thickness, durometer, friction, etc., of the interposed material can be varied to change the rate of acceleration.

Volume 4 Number 5 September/October 1979 587

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