Patent ID: 8726622

Claim:
A safety system for a harvester comprising: a feeder arm configured for attachment of a header to the harvester; a piston and cylinder of a hydraulic system for adjusting the position of the feeder arm with respect to a chassis of the harvester, wherein a first end of said piston is rotatably affixed to the feeder arm and a second end of said piston is receivable within said cylinder, the cylinder has a first end rotatably affixed to a stationary part of the harvester, the cylinder has a second end for receiving the piston; a laterally extending protrusion fixed to the second end of said cylinder; a safety stand having a first end pivotally mounted at the first end of the piston, the safety stand having a second end freely rotatable; wherein said safety stand defines at least one longitudinal edge which defines a plurality of notches each notch extending inward from a respective opening along the edge, wherein each notch is sized and configured to receive and accept said laterally extending protrusion; wherein said safety stand is rotatable between a raised, disengaged position and a lowered, engaged position, where said protrusion engages one of said plurality of notches, thereby preventing further retraction of the piston within the cylinder, and when a recess engages the protrusion in the lowered position, the safety stand is in a fully extended position and secures the feeder arm in a fixed position with respect to the chassis by preventing the piston from retracting within the cylinder; and wherein said plurality of notches comprise opposing walls on either side of the openings along the longitudinal edge that slope from the openings toward the first end of the piston and configured to prevent movement of the protrusion in opposing directions perpendicular to the direction of movement of the piston within a plane of rotation of the arm.