Browse Prior Art Database

Folded Form Stack Mechanism

IP.com Disclosure Number: IPCOM000049385D
Original Publication Date: 1982-Apr-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Hagiwara, K: AUTHOR

Abstract

For folding a fan-folded print form in a stacker after printing there on, a form pressure arm is provided to be cooperative with a pin wheel to pressure the loosely stacked form only when the form feeding is at a stop.

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Folded Form Stack Mechanism

For folding a fan-folded print form in a stacker after printing there on, a form pressure arm is provided to be cooperative with a pin wheel to pressure the loosely stacked form only when the form feeding is at a stop.

The print form is fed into stacker 1 by a pin wheel 2 which is driven by a motor (not shown). A roller 3 is engaged with the pin wheel 2 to rotate only when the pin wheel 2 is being rotated. The roller 3 does not touch on the pin wheel 2 but guides the print form.

An endless belt 4 is driven together with the pin wheel 2 to urge the fed form toward the bottom of the stack 1. A form pressure arm 5 is mounted on a shaft 6 of the roller 3 through a spring clutch (not shown) so that the arm 5 can be lifted and kept in its lifted position only when the roller 3 is being rotated and can be lowered onto the stacked form by its own weight when the rotation of the roller 3 is stopped. At initially loading the form to the stacker 1, the operator lifts the form pressure arm 5 by hand and sets the form to be its leading edge at the position "A" or "C" and the first fold at "B" or "D". Then, the arm 5 is lifted only during the time when the pin wheel 2 is rotating to feed the form into the stack 1 so that it cannot be in the way of the form stacking.

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