Browse Prior Art Database

Paper Stacking Chains - Swing Gate

IP.com Disclosure Number: IPCOM000105035D
Original Publication Date: 1993-Jun-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Helinski, E: AUTHOR [+4]

Abstract

The disclosed swing gate is a device which is used in printers to improve the stacking of fan fold type forms. The device operates in the stacker area of the printer with or without the usual access door. The device consists of various length chains attached to a convenient swing gate. The swing gate enables the operator to swing the rod with chains attached out of the way during loading and unloading of forms.

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Paper Stacking Chains - Swing Gate

      The disclosed swing gate is a device which is used in printers
to improve the stacking of fan fold type forms.  The device operates
in the stacker area of the printer with or without the usual access
door.  The device consists of various length chains attached to a
convenient swing gate.  The swing gate enables the operator to swing
the rod with chains attached out of the way during loading and
unloading of forms.

      The Figure shows three projected views of a swing gate assembly
consisting of two rods (2) (3) with various length chains (5) (6)
attached to them.  The hinge assembly (7) mounted on bracket (1)
enables the rod (3) to be swung at a 90 degree angle to stationery
rod (2) to an open position during loading and unloading of forms.
Rod (3) is shown dotted in its open position in top view.  The latch
assembly (4) allows the rod (3) to be latched securely in the closed
position during printing.

      The swing gate also maintains the distance between the front
chains (5) (6) on rod (2) and rear chains (5) (6) on rod (3) by
fixing the distance between rod (2) and rod (3) during printing.

      This distance is critical to the reliability of stacking a full
box of paper.  The paper will tend to curl up during stacking,
leading to a misfold or jam, if the distance between front and rear
chains is incorrect.