Patent ID: 8250842

Claim:
A cutting device for crop, comprising a cutting tool settable into rotation; a shear bar displaceable relative to said cutting tool and having two diametrically opposed ends; a control device coupled to said two diametrically opposed ends of said shear bar, so that a clearance position of said shear bar relative to said cutting tool is changeable; control units activated by said control device to change the clearance position of said shear bar, and wherein said control device, to move said shear bar toward said cutting tool, operates to activate said control units to perform in alteration a working step in which a respective one of said control units activated initially moves a respective one of said ends of said shear bar assigned to said respective one of said control units toward said cutting tool by a first adjusting distance, and then away from said cutting tool by a second adjusting distance which is smaller than said first adjusting distance.