Metal deforming – By deflecting successively-presented portions of work during... – By use of deflectors arranged to bend work longitudinally of...
Patent
1997-12-19
1999-03-23
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
By use of deflectors arranged to bend work longitudinally of...
72173, 72307, B21D 708
Patent
active
058845178
ABSTRACT:
A bending device which can reduce a change in bend radius caused by movement of a bending jig and which can twist an elongate material using a simple construction. The bending device has a positioning jig 6 with a clearance opening formed therein for passing a material 1, positioning jig 6, for receiving the material, a bending jig 12 with a clearance opening for passing the material 1. The bending jig is supported on a sliding mechanism 26 movable in a plane perpendicular to a material supply direction controlled by a sliding drive mechanism 32. The device is also provided with a first bending mechanism 51 for pivoting the bending jig 12 around a first axis orthogonal to the length of the elongate material and a second bending mechanism 55 for pivoting the bending jig 12 around a second bending axis 52 orthogonal to the length of the material and the first bending axis to bend the material 1. On the sliding mechanism 26, a twisting mechanism 41 is provided at a predetermined distance from the material 1 for pivoting the bending jig 12 around a pivot axis 24 parallel with the length of the material.
REFERENCES:
patent: 4367641 (1983-01-01), Mizutani
patent: 4391116 (1983-07-01), Yogo
patent: 5031291 (1991-07-01), Shimokata
patent: 5239850 (1993-08-01), Shimokata
patent: 5259231 (1993-11-01), Kutschker
patent: 5425257 (1995-06-01), Kitsukawa
Japanese Patent Abstract, JP 08 257643 A, vol. 097, No. 002, dated 28 Feb. 1997.
Crane Daniel C.
Kabushiki Kaisha Opton
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