Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1989-12-18
1991-08-06
Crane, Daniel C.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72 17, 72168, 72172, 72173, B21D 514
Patent
active
050366882
ABSTRACT:
A system of forming a curve in a substantially planar portion of a fender blank consists of a plurality of components and steps. First and second substantially parallel rollers are provided having selected diameters with a gap therebetween adapted to receive the substantially planar portion of the fender blank. A forming shoe is provided at a forming region on one side of the first and second substantially parallel rollers. A substantially planar portion of the fender blank is inserted in the gap. At least one of the first and second substantially parallel rollers is advanced to rotate a selected length of the substantially planar portion of the fender blank through the gap to the forming region. At least one of the first and second substantially parallel rollers is rotated to retract a selected length of the fender blank from the forming region through the gap at a selected rate, while simultaneously the forming shoe is moved through a selected angle at a selected rate to bear upon the fender blank. The first and second substantially parallel rollers and the forming shoe cooperate to form a curve of selected radius in the substantially planar portion of the fender blank.
REFERENCES:
patent: 1166814 (1916-01-01), Cleesattel
patent: 1296199 (1919-03-01), Lundahl
patent: 1376497 (1921-05-01), Yoder
patent: 1588817 (1926-06-01), Smith
patent: 3848446 (1974-11-01), Iwasaki
patent: 4232540 (1980-11-01), Cain
patent: 4796449 (1989-01-01), Berne
Bradley James E.
Crane Daniel C.
Quality Trailer Products Corporation
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