Fitting for opening rollers

摘要

An arrangement is provided for an opening roller having a plurality of teeth wherein the tooth faces exhibit an oblique curvature in the direction of rotation of the roller resulting in a face angle between 12 DEG and 30 DEG in the region of the tip of the tooth and a face angle of about +5 DEG to -5 DEG in the region of the bottom of the tooth leading to a curved portion which extends to the back of the preceeding tooth. The arrangement provides for improved combing action on the fiber band and results in improved wear characteristics among other beneficial results.