PROBLEM TO BE SOLVED: To provide a harvester in which a limit torque of a torque limiter, i.e., a tradeoff balance can flexibly be changed in the field in situ.SOLUTION: A harvester is characterized as follows: a raking auger is laterally bridged in a rotatable manner around a horizontal axis line through a rotating pivot a sprocket acceptor formed in a shape of a flange is concentrically mounted by protruding in a radial direction of a rotating pivot, and an outer circumference end face of the sprocket acceptor is formed into a concentric circle arc face a passive sprocket having a fitting hole forming a concentric circle arc face with the outer circumference end face in a central part is outwardly engaged through the fitting hole in the sprocket acceptor also, a shear pin facing an axis line in the radial direction of the rotating pivot is interposed so as to be straddled between the passive sprocket and the sprocket acceptor and thereby a shear force in a rotation direction of the passive sprocket is made to act in a middle part of the shear pin.SELECTED DRAWING: Figure 7
