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Browse Prior Art Database

Wear Compensation and Roll Gap Generator

IP.com Disclosure Number: IPCOM000083998D
Original Publication Date: 1975-Sep-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 3 page(s) / 43K

Publishing Venue

IBM

Related People

Sokol, GL: AUTHOR

Abstract

This mechanism compensates for roll wear and also allows a gap to be generated between the separator and restraint rolls of a roller paper separator, for ease in clearing paper caught between the rolls.

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Wear Compensation and Roll Gap Generator

This mechanism compensates for roll wear and also allows a gap to be generated between the separator and restraint rolls of a roller paper separator, for ease in clearing paper caught between the rolls.

In a sheet feed device the separator roll 1 and the restraint roll 2 are normally in interference contact, to provide a certain normal load between the rolls and effective sheet paper separation. The restraint roll 2 is attached to the restraint shaft 3 which is free to rotate in the compensation cylinder 4. The center axis of the compensation cylinder 4 and the restraint shaft 3 are offset or eccentric. The compensation cylinder 4 and the restraint shaft 3 are free to rotate, but restricted from axial translation. The release disk 5 is confined in a recess in the main housing 6 by a retaining ring, not shown. It is free to rotate only. Located on the back side of the release disk 5 are two ramp projections 15 positioned at 180 degrees.

The legs on the locking cone 7 fit inside the inside diameter of the release disk 5 and over the outside diameter of the compensation cylinder 4, and into two locating holes in the main housing 6. The pins 14 projecting from the legs on the locking cone 7 ride behind the release disk 5. The locking cone 7 can translate axially but not rotate and is restrained from coming out by the release disk 5. A compression spring, not shown, is sandwiched between the locking cone 7 and the main housing 6, providing a bias to the locking cone.

A locking cup 8 and opening ratchet 9 are attached to the compensation cylinder 4. The compensation spring 10 is attached to the locking cup 8 and anchored to the main housing 6. The actuation arm 11 pivots on a stud located on the main housing 6. The release link 12 connects the actuation arm 11 and the release disk 5. The opening pawl 13 is also attached and free to pivot on the actuation arm 11.

When the actuation arm 11 is rotated in the direction indicated by the arrow, the release link 12 rotates the release disk 5. As the disk rotates, the pins...