Patent ID: 8201480
Filing Date: 2012-06-19
Classification: B65G,Y10T

Abstract:
1. A drive system for driving a pallet between a first position on a first side of a guard door plane and a second position on a second side of the guard door plane, the drive system comprising: an elongated drive assembly having a drive shaft with a longitudinal axis and a cam barrel on at least one end thereof; a drive hub for driving the drive shaft; a separable coupling for joining the drive hub in driving engagement with the drive shaft; a first drive unit for rotating the drive hub and the drive shaft about their longitudinal axis; a hub carrier for supporting the drive hub for arcuate motion about a vertical axis; and a second drive unit for rotating the drive hub in an arcuate path; whereby the end of the drive hub that comprises a part of the separable coupling moves from one side of the guard door plane to the other side of the guard door plane.