POSITIVE DISPLACEMENT SORTER

摘要

A positive displacement sorter includes a plurality of interconnected parallel slats defining an endless web that travels in a longitudinal direction. The web has upper and lower runs and transition sections between the runs. An upper surface of the upper run of the web defining an article-conveying surface. A plurality of pusher shoes travels along the slats in order to divert articles on the conveying surface. Each shoe has a diverting member extending below the conveying surface. A plurality of diverting rails below the conveying surface may engage the diverting member to cause the associated shoe to travel to divert an article. A plurality of diverters diverts a diverting member from a non-diverting path extending longitudinally along the sorter to one of the diverting rails in a diverting state. A propulsion system propels the web and includes at least one drive assembly engaging a surface of a run.