Original Publication Date: 1999-Oct-31
Included in the Prior Art Database: 2004-Apr-09
Xerox Disclosure Journal
A hinged roller is disclosed for use on paper handling shafts in electrophotographic printing machines. As shown in the accompanying figure, roller 10 comprises two cylindrical halves 12 and 14 joined together by a living hinge 16. The shutting of roller 10 is accomplished by a snap lock-fastening device composed of a protuberant member 18 and receiving means 20 positioned at opposite ends of hinge 16. Inasmuch as the functional surface of roller 10 is along the outside of a plurality of arcuately shaped ridge pairs 22 and 24, hinge 16 does not interfere with the roller's operability because it's lower than the functional surface. Dimension 26 prevents interference when roller 10 is in a flat state by offsetting each ridge pair 22 and 24. Likewise, each ridge pair is slightly undercut to avoid the possibility of paper snagging thereon.