Metal deforming – With means to drive tool – Including link-actuated tool support
Patent
1995-06-07
1997-02-11
Jones, David
Metal deforming
With means to drive tool
Including link-actuated tool support
72220, B21J 918, B21H 716
Patent
active
056009950
ABSTRACT:
For use in forming apparatus having a die element and a roll platen element that have parallel, facing, flat, and preferably horizontal surfaces and each of which has an associated mounting structure, toggle assemblies to alter the distance between the flat surfaces of those elements by moving one or both of them, and to positionally fix those surfaces at desired distances from each other. Each toggle assembly includes an obtusely angled toggle link, one end of which is pivotally interconnected with an associated motion actuator means. A second toggle link that is positioned across the exterior angle of the angled toggle link has one end that is pivotally affixed to the angled toggle link at a first pivot point located at the angle of the angled link. The other end of the second toggle link and the other end of the angled toggle link are pivotally interconnected to the element and with its associated mounting structure, in either order, at second and third pivot points. When the element is in its most distant location from the other element, the first pivot point is located at one side of a straight line between said second pivot point and said third pivot point. By actuation of the motion actuator means, the first pivot point is made to move substantially to said line. Optional stop means may be included which limits the ability of the first point to move substantially past said line.
REFERENCES:
patent: 1045022 (1912-11-01), Hauberg
patent: 3792602 (1974-02-01), Fukuda
patent: 4483168 (1984-11-01), Sherman
Jones David
Rhines, Esq. William G.
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