Patent ID: 8944243
Filing Date: 2015-02-03
Classification: B65G,G03G

Abstract:
1. A belt tracking system for controlling the lateral position of a movable belt entrained about a plurality of generally parallel rollers for moving in a trans-axial direction perpendicular to an axial direction in which the rollers extend parallel to each other, the system comprising: a roller shaft extending outward in the axial direction from an axial end of a specific one of the plurality of generally parallel rollers; a stationary member fixed in position adjacent to the roller shaft to define a first interfacial surface therealong; a slidable member co-movably coupled with the roller shaft to define a second interfacial surface therealong inclined relative to the axial direction, the slidable member being slidable against the stationary member along the interfacial surfaces to cause the roller shaft to move in a direction perpendicular to the axial direction as the belt moves laterally outward in the axial direction; and a biasing mechanism connected to the roller shaft to press the slidable member against the stationary member to maintain continuous contact between the first and second interfacial surfaces.