Patent ID: 7062949

Claim:
A metal forming press having a straight line drive mechanism and comprising: (a) a machine frame; (b) a rotating crankshaft mounted in the frame and having an eccentric throw; (c) a connecting rod pivotally attached to the eccentric throw; (d) a fixed bore in the frame for pivotally receiving one end of a beam; (e) an eccentric shaft in the fixed bore, which eccentric shaft has an eccentric lobe; (f) an oscillating beam having a plurality of parallel bores, including a bore at its approximate center and a bore at each of its ends, with one end bore being pivotally connected to the eccentric lobe of the eccentric shaft, and the central bore being pivotally connected to the connecting rod; and (g) a link pivotally connected at one end to the other end bore of the beam, with the other end of the link being pivotally connected to a fixed bore on a ram sliding on a set of linear bearings so as to move in a straight line.