Browse Prior Art Database

FLEXIBLE COUPLING

IP.com Disclosure Number: IPCOM000026714D
Original Publication Date: 1993-Apr-30
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 74K

Publishing Venue

Xerox Disclosure Journal

Abstract

The feeder gearbox of a copier is connected to a bail bar drive shaft by means of a flexible shaft coupling. The two shafts to be coupled together are not usually coaxial, in that the structure supporting one of them is intended to be able to pivot about an axis transverse to the shaft axis, while the drive connection between the two shafts must be maintained through the whole range of pivotal movement.

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XEROX DISCLOSURE JOURNAL

FLEXIBLE COUPLING
J. Drain

4

Proposed Classification

U.S. C1.4644001

Int. C1. F16d 03/10

14

1

XEROX DISCLOSURE JOURNAL - Vol. 18, No. 2 MarcWAprill993 235

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FLEXIBLE COUPLING (Cont'd)

The feeder gearbox of a copier is connected to a bail bar drive shaft by means of a flexible shaft coupling. The two shafts to be coupled together are not usually coaxial, in that the structure supporting one of them is intended to be able to pivot about an axis transverse to the shaft axis, while the drive connection between the two shafts must be maintained through the whole range of pivotal movement.

As shown in the drawing, the coupling between the two shafts 2 and 4 takes the form of an intermediate shaft 6 of plastics material which is connected to one end of each shaft by means of close-coiled helical springs 8. The gearbox shaft 2 projects from a fixed structure on which is pivoted another structure 12
containing the bail bar operating shaft 4 in fixed journals. The intermediate shaft 6 extends between the spaced-apart ends 14 of the two shafts. All the shaft ends are of reduced diameter, and the gaps between them are bridged by the springs 8. The coils of the springs are handed so that they tend to wrap down on to the ends 14 when the shaft 2 is transmitting torque to the shaft 4.
In order to permit the springs to be mounted on the ends 14, they are partially unwrapped by hand when be...