Patent ID: 7779523

Claim:
A pressing device for the press joining of tubular workpieces including, a tube, on the one hand, and a fitting slipped onto the tube, with plastic deformation of at least one of the workpieces, the workpieces defining a central longitudinal axis, a pressing cross-section plane, a radial direction and a circumferential direction, the pressing device comprising: a plurality of pressing members, the pressing members being capable of being moved toward the central longitudinal axis of the workpieces in order to carry out the pressing, at least two of said plurality of pressing members which define a first pressing member and a second pressing member, in order to apply pressing force, are pivotably connected to one another via two toggle levers, the toggle levers being supported on said first pressing member, and both toggle levers being connected in tension to said second pressing member, each said toggle lever including a first pivot lever connected to a second pivot lever at a pivot hinge, said first and second pivot levers capable of being angled relative to each other at varying angles relative to each other, each said first pivot lever being pivotally connected to said first pressing member at a hinge, each said second pivot lever being pivotally connected to said second pressing member at a hinge.