Browse Prior Art Database

SHEET REGISTRATION DEVICE

IP.com Disclosure Number: IPCOM000026814D
Original Publication Date: 1993-Oct-31
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 91K

Publishing Venue

Xerox Disclosure Journal

Abstract

In document finishing, it is often necessary to provide full width clamping of a stack of paper to perform finishing or secondary operations such as stitching, binding, punching, and the like. This disclosure describes a device and means of achieving full width clamping with a self-adjusting cable mechanism.

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XEROX DISCLOSURE JOURNAL

SHEET REGISTRATION DEVICE Proposed Classification Paul N. Richards US. C1.355/311
Geoff C. Williams Int. C1. G03g 21/00

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XEROX DISCLOSURE JOURNAL - Vol.18,No. 5 Septemher/October 1993 523

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SHEET REGISTRATION DEVICE (Cont'd)

In document finishing, it is often necessary to provide full width clamping of a stack of paper to perform finishing or secondary operations such as stitching, binding, punching, and the like. This disclosure describes a device and means of achieving full width clamping with a self-adjusting cable mechanism.

The registration device shown in the Figure is used to clamp sheets, eliminate air between the sheets, and locate the sheets to a desired position. The device is cable actuated via six pulleys 1. A seventh pulley 2 mounted on a pneumatic cylinder 3 actuates the system and associated automatic alignment features for achieving sheet stack parallelism. The pneumatic cylinder may be mounted perpendicular to the clamps thereby reducing space constraints. The device can produce balanced forces across the sheets ranging from 0 to 20
pounds. An internal spring return 4 is incorporated, insuring even or equal return of the clamps 6. The spring return 4 uses two pulleys 5 insuring an even return force. These full width clamps 6 may be actuated pneumatically, as here, so as to control velocity and pressure. Other actuation means are optional. The device can b...