Patent ID: 6416047
Filing Date: 2002-07-09
Classification: B65H

Abstract:
A frictional feeder for paper stacks comprisinga frictional conveyor belt configured to receive a paper stack comprised of paper sheets from above and to convey individual paper sheets of the paper stack in a conveying direction; a curved support positioned above the frictional conveyor belt at a rearward end of the paper stack, viewed in the conveying direction, and at a slant relative to a plane of the paper sheets of the paper stack and configured to support the rearward end of the paper stack; an elbow lever having a first end and a second end, wherein the first end is connected to the curved support; a self-locking drive unit connected tot he second end of the elbow lever and configured to pivot the elbow lever and the curved support connected to the elbow lever to adjust the slant of the curved support relative to the plane of the paper sheets of the paper stack, wherein the drive unit is comprised of a spindle and a spindle nut, wherein the spindle nut is connected to the second end of the elbow lever, wherein the spindle nut and the second end of the elbow lever are pivotable relative to one another about a pivot axis and wherein the pivot axis is perpendicular to a rotational axis of the spindle.