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BRISTLE ROLL INVERTER

IP.com Disclosure Number: IPCOM000023972D
Original Publication Date: 1979-Jun-30
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 261K

Publishing Venue

Xerox Disclosure Journal

Abstract

A sheet inverting device which has top and bottom walls that converge at a point to form a V-shapedstructure remote from a bristle brush that is located within but at the mouth of the structure. The bristle roll may rotate in either direction with the bristles themselves creating an interference contact surface with the walls. The amount of contact surface and contact pressure may be varied according to the specific dynamics of the sheet inversion required. Thus, paper is driven into the V.-

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XEROX DISCLOSURE JOURNAL

BRISTLE ROLL INVERTER Proposed Classification David N. Hawkins U.S. Cl. 271/186 George ~J.Roller mt. Cl. B65h 29/00

A sheet inverting device which has top and bottom walls that converge at a point to form a V~shapedstructure remote from a bristle brush that is located within but at the mouth of the structure. The bristle roll may rotate in either direction with the bristles themselves creating an interference contact surface with the walls. The amount of contact surface and contact pressure may be varied according to the specific dynamics of the sheet inversion required. Thus, paper is driven into the V.~ shaped member through this contact surface made by the top or bottom wall and the bristles~ The sheet then strikes the inverter end creating a buckle.

However, since the bristle roll is continuously rotating, the bristles contact the lead edge of the paper. This drives the lead edge to the output nip created by the bristles and the contact surface along the top or bottom wall, driving the sheet out. In actual practice, the length of the bristles, the number of bristle rolls, the length of each bristle roll, the degree of interference between bristles and top and bottom walls and the length of the walls may be varied for optimum sheet inversion. Such a device has the potential for inverting sheets of various sizes without varying the inverter geometry when changing sheet size from one to another.

The bristle roll coefficient of friction w...