US Patent 8636569 Threshing element for harvesters

A threshing element includes a structure having an outside surface for threshing a crop material, and an inside surface. A body is operatively connected to a sensor. The body is secured to the inside surface of the structure, the body having a connecting feature for securing at least the body and the structure to each other. The structure is securable to a rotatable threshing rotor of a harvester threshing system. In response to operation of the threshing rotor of the harvester threshing system, the sensor outputs a signal corresponding to forces generated by contact between the outside surface of the structure and the crop material.