Metal deforming – By or with work-constrainer and/or manipulated work-forcer – Comprising lever manipulated to force work
Patent
1999-04-06
2000-10-10
Jones, David
Metal deforming
By or with work-constrainer and/or manipulated work-forcer
Comprising lever manipulated to force work
72387, 72479, B21L 106, B21D 702
Patent
active
061289442
ABSTRACT:
An apparatus for bending malleable metal rods comprises a base plate having a plurality of holes arranged in rows and columns; a locking cam member having an ovoid configuration, with a camming surface at its broad end and a locking cam member pivot axis near its narrow end; and a a force application member. Each of the locking cam member and the force application member has a handle member; and each is adapted so as to be removably and pivotally mounted on the base plate, with their respective pivot axes each being aligned with one of the plurality of holes. At least two pins are adapted to be received in any two of the plurality of holes. A workpiece of malleable metal rod may be locked in place by being forced against two pins when they are received in two spaced apart holes, and the camming surface of the locking cam member is forced against the side of the workpiece remote from the side which contacts the two spaced apart pins. The workpiece is bent by contacting it with a force applying surface of the force application member at a region of the workpiece near one of the two spaced apart pins, which region is remote from the other of the spaced apart pins, and by causing pivotal movement of the force application member about its pivot axis by manipulation of its handle member, so as to transfer bending force from the force application member to the workpiece through the force applying surface.
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