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Browse Prior Art Database

SHEET DAMPING MECHANISM

IP.com Disclosure Number: IPCOM000026405D
Original Publication Date: 1991-Oct-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 77K

Publishing Venue

Xerox Disclosure Journal

Abstract

A copy sheet damping mechanism that utilizes a double pivot damper arm for stacking printed sheets in a imaging system output stacking tray is disclosed. The sheet damping mechanism permits lateral movement (see arrow in figure) of the stacking tray 1 while providing set integrity of the stacked sheets. As shown in the figure, two pairs of pivots 2 on the damper arms 4 allows the arms to move synchronously with lateral movement of the stacking tray 1. Parallelism of the arms 4 are preserved by using a tie bar 3 .

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XEROX DISCLOSURE JOURNAL

SHEET DAMPING MECHANISM Proposed Classification Stephen M. Borostyan US. C1.3551321

Int. C1. G03g/2100

XEROX DISCLOSUM JOURNAL - Vol. 16, No. 5 September/October 1991 329

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SHEET DAMPING MECHANISM(Cont'd)

A copy sheet damping mechanism that utilizes a double pivot damper arm for stacking printed sheets in a imaging system output stacking tray is disclosed.

The sheet damping mechanism permits lateral movement (see arrow in figure) of the stacking tray 1 while providing set integrity of the stacked sheets. As shown in the figure, two pairs of pivots 2 on the damper arms 4 allows the arms to move synchronously with lateral movement of the stacking tray 1. Parallelism of the arms 4 are preserved by using a tie bar 3 .

The arms 4 apply a normal force on the sets of sheets without applying a lateral force thereon. The sets of sheets (not shown) are damped without disturbing the integrity of the sets of sheets during offsetting.

Various approaches have been devised for stacking sets of sheets. U.S. Patent 2,660,431 issued to Levin discloses a sheet feeder having a tray for supporting a stack of sheets. U.S. Patent 3,949,982 issued to Snellman, et al., describes a pair of arms used to align a stack of sheets. U.S. Patent 4,208,122 issued to Iwamoto et al., discloses a stationary tray that receives sets of copy sheets.

330 XEROX DISCLOSURE JOURNAL - Vol. 16, No. 5 SeptembedOctober 1...