Forming tool for use in a die assembly
AssigneeReady Stamping System, Inc.
InventorAllan Emerson Randolph, Sr.
Life of this patent
Estimating the term…
Abstract
A forming tool comprising a relatively rigid shank portion or holder mounting in bearing relation thereto and for limited rotation thereon an operating head. In the preferred embodiment illustrated the operating head is in the nature of a generally cylindrical body having a V-shaped notch. The formation of the notch in the cylindrical body produces thereon a pair of laterally spaced bearing surfaces for application to material to be worked, one of which functions as a fixing means and the other of which functions as a bending means.
Claims9
A forming tool comprising a holder an exterior surface portion of which includes a groove the base of which is arcuately configured and provides a bearing surface for an operating head in the form of a roller device, said roller device including a longitudinally extended radially directed V-shaped notch the side walls of which are outwardly divergent, define an angle which is less than that to be formed in the work material to which it is applied and provide circularly spaced edge portions at their outer extremities for contact with the work material, said roller device being mounted for free rotation with respect to said holder in response to a bearing of one of said spaced edge portions against a supported portion of the work material and a bearing movement of the other of said spaced edge portions on an unsupported portion of the work material whereby to bend a portion of said material to a predetermined angle, and means providing abutment surfaces which determine the limits of rotation of said roller device in the application thereof to work material.
A forming tool including a holder having a projecting shank portion by which the tool may be installed of one of opposing vertically spaced die elements, the end surface of said holder remote from said projecting shank portion being formed with a transversely extended groove the base of which is arcuate in cross section, the respective ends of said groove opening from opposite end walls of said holder, a cylindrical roller element nested in said groove and mounted so as to be freely rotatable therein, said roller member having a diameter to provide that a peripheral segment thereof projects from said groove and is formed with a radially directed V-shaped notch in its outer periphery, guide plate means mounted to said opposite end walls of said holder in a substantially closing relation to the ends of said groove and means being provided to define a pin-slot connection between said guide plate means and the ends of said roller member, said connection permitting the relatively free rotation of said roller member within the limits of said slot.
Dependencies are inferred from the claim text.