Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1990-08-01
1991-08-20
Jones, David
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
7245301, B21D 703
Patent
active
050404016
ABSTRACT:
The present fabrication apparatus includes pivotable die blocks and a stationary half-moon male die for bending re-rods. Front inner portions of the pivotable die blocks bring over-center pressure on a bent rod so as to control the tendency of a bent rod to spread after removal from the die blocks. The pivotable die blocks are mounted in a housing with a threaded pin connector for drawing the pivotable die blocks toward and away from each other to adjust the housing to bend rods to a variety of radii. The housing further includes upper and lower plates sandwiching each of the pivotable die blocks. Parallel ridges are formed in confronting surfaces of the upper plate and a transverse bar to increase the capability of the transverse bar to prevent the housing from being spread apart as a rod is being bent.
REFERENCES:
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patent: 2867261 (1959-01-01), Traupmann
patent: 3124192 (1964-03-01), Williams et al.
patent: 3724256 (1973-04-01), Kroetch
patent: 4004445 (1977-01-01), Larson
patent: 4041753 (1977-08-01), Hix
patent: 4265106 (1981-05-01), McMaster et al.
patent: 4506535 (1985-03-01), Eubanks
patent: 4638703 (1987-01-01), Muhr
patent: 4788847 (1988-12-01), Sterghos
patent: 4945751 (1990-08-01), Ireland
"Cut and Bend Rebard with Fascut" Fascut Industries, Rte. 2, Box 54A, Sauk City, WI 53583.
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