Browse Prior Art Database

Envelope Feeding Mechanism

IP.com Disclosure Number: IPCOM000087663D
Original Publication Date: 1977-Mar-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Feinstein, P: AUTHOR [+3]

Abstract

Quite often documents, such as envelopes, do not stack evenly and consequently, single feeding of a document to a utilization device is quite difficult.

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Envelope Feeding Mechanism

Quite often documents, such as envelopes, do not stack evenly and consequently, single feeding of a document to a utilization device is quite difficult.

Illustrated is a feeder which can reliably feed documents. The device can feed envelopes, in particular, which may stack flap side high or flap side low depending on the type of envelope being used. Shown is a crowned picker roller which maintains a substantially constant contact with the driven envelope regardless of the tilt of the stack of envelopes.

In the inclined plane geometry illustrated, the vertical restraint 1 prevents mass or clump feeding from the document stack to restrict the number of documents which can possibly be fed under the crowned roller. The sloping restraint 2 shingles the documents from the document stack such that they are presented in a shingled manner to a clamp or other type of utilization device for transport. The left and right bevel surfaces 3 and 4 allow feeding of envelopes that stack flap side high or flap side low by presenting an inclined surface to the lower corner of such envelopes, and, thus, allow feeding without compromising the effectiveness of the clump restraint 1 and the shingling plane 2. This allows the slope of the shingling plane 2 to be less than would be required in a device having only a single surface, i.e., one without beveled surfaces 3 and 4.

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