Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1982-08-23
1988-11-15
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
B21D 504
Patent
active
047839848
ABSTRACT:
Apparatus for folding a sheet metal element comprises a frame, two carriers carried by the frame, and two gripping platens which are secured to respective ones of the carriers and at least one of which is movable in unison with the associated carrier transversely to the sheet metal element gripped between said platens. At least one bending tool is provided, which is movable generally parallel to the sheet metal element and is also movable transversely to the sheet metal element and is operatively connected to drive means for moving the tool in said two directions. The tool cooperates with one of the gripping platens, which constitutes a backing tool. In order to prevent a deflection of the gripping platens during the folding operation, those drive means which serve to move the bending tool generally parallel to the sheet metal element is supported by the carrier which carries that gripping platen which serves as a backing tool.
REFERENCES:
patent: 1966472 (1934-07-01), Way
patent: 2822545 (1958-02-01), Eickhoff
patent: 2937689 (1960-05-01), Peterson
patent: 3009201 (1961-11-01), Hansen
patent: 3149376 (1964-09-01), Lee
patent: 3914974 (1975-10-01), De Vore
patent: 3994152 (1976-11-01), Wolters
patent: 4185487 (1980-01-01), Merideth
Crane Daniel C.
Kelman Kurt
Voest-Alpine Aktiengesellschaft
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