Back to results
US 7,062,949 B1Granted
Metal forming press having straight line drive mechanism
OwnerDonald R. Haulseeinventor
Life of this patent
Estimating the term…
Abstract
A metal forming press has an oscillating beam driven at its center by a connecting rod connected to a throw on a crankshaft. The upper end of the beam is pivoted to a link which drives a ram. The lower end of the beam pivots about a rotating eccentric shaft having an eccentric lobe. As the beam oscillates, these eccentricities cause the lower pivot to move toward and away from the ram so that the arc of the upper pivot approximates a straight line.
Claims9
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.
5 more elements
Dependencies are inferred from the claim text.