Patent ID: 7281677
Filing Date: 2007-10-16
Classification: B65H

Abstract:
1. A take-up roller apparatus for flexible strip material being fed from a supply at a predetermined rate comprising: (a) a frame; (b) a first shaft journaled for rotation on said frame; (c) a motor coupled in driving relation to said first shaft for rotating the first shaft at a generally constant speed; (d) a plate mounted on the first shaft for rotation therewith, said plate supporting a first plurality of permanent magnets thereon; and (e) a take-up spool comprising a first flange affixed to a tubular shaft proximate a first end thereof, the flange having a plurality of permanent magnets thereon which are generally aligned with the plurality of magnets on the plate, the tubular shaft adapted to be journaled for rotation about and in surrounding relation to the first shaft with the first flange located in sufficiently close proximity to said plate such that the magnets are under the influence of each other whereby the take-up spool rotates about the first shaft allowing the strip material to be wound about the tubular shaft of the take-up spool with the speed of rotation of the take-up spool varying to accommodate the feed rate of the supply and a changing radius of the strip material as it winds upon the tubular shaft of the take-up spool.