FEEDER ROLLER AND FEEDER ROLLER MAIN BODY THEREFOR

摘要

A feeder roller main body and a feeder roller having the same are provided to adjust the size of a spacer receiving groove of the feeder roller even without disjoining the feeder roller main body and a feeder roller case, by changing a radius of the feeder roller main body. An inner space is formed in a feeder roller main body(320). A plurality of radius adjusting members(322) are arranged in a circumference portion of the inner space. A guiding unit(332) guides respective radius adjusting members outwardly. An operation cam(324) is rotatively installed in the inner space of the feeder roller main body. A plurality of inclined surfaces(324i) are formed along an outer circumferential surface of the operation cam. Each of the inclined surfaces makes a predetermined angle with a circumferential tangent line.