Patent ID: 7908916
Filing Date: 2011-03-22
Classification: G01M

Abstract:
1. A testing machine comprising: a frame; a roadway assembly comprising: a second roller; an endless belt supported by and rolling on the first roller and the second roller; and a carriage supporting the first roller and the second roller in spaced apart relation to cause a flat portion in the endless belt, the carriage being pivotally coupled to the frame to move relative to the frame about at least one axis that is perpendicular to an axis that is parallel to an axis of rotation of the first roller, the carriage including a bearing arranged to support an inner surface of the flat portion of the endless belt; a spindle carriage having a spindle arranged to support a tire and wheel assembly, the spindle carriage movably mounted on the frame to move the spindle toward and away from the flat portion; a drive operably coupled to the drive roller or the spindle; and an actuator to control pivotal movement of the roadway assembly about said at least one axis.