Starter device for a motor driven machine

A starting device for an internal combustion engine for handheld equipment including chain saws, lawn mowers, and lawn trimmers, or vehicles including mopeds, boats or miniature aircraft, comprising:

• an output element into which a starter torque is introduced when the starting device is actuated;
• and
• a double crank mechanism between the output element and a crankshaft of the internal combustion engine, the double crank mechanism configured to transfer the starter torque to the crankshaft and induce a crankshaft torque that is variable depending upon the rotational angle of the crankshaft at a constant starter torque, wherein the double crank mechanism comprises a first crank element, a second crank element, and a coupling member extending between the first and second crank elements, wherein the first crank element includes a first hinge pin operatively connected to the output element and encircling a first axis, wherein the second crank element includes a second hinge pin operatively connected to the crankshaft and encircling a second axis, the second axis eccentrically offset from the first axis.