TRACK AND TROLLEY WITH DUAL DRIVE WHEELS HAVING ANNULAR TRACK ENGAGING SURFACES OF DIFFERENT DIAMETERS

摘要

A track and trolley system that allows wall panels to be moved with a minimum amount of friction is disclosed. The system includes a track having a first rail, a second rail which is higher than the first rail, and a trolley having two drive wheels that engage the rails via annular track engaging surfaces of different diameters. Each drive wheel is independently rotatable in opposite directions. The system further includes a wall panel mount assembly having a housing integral with a movable wall panel and slide pads at track intersections to reduce the vertical elevational drop of a trolley when it moves across a track intersection.