Material or article handling – Elevator or hoist and loading or unloading means therefor – Grab
Patent
1987-05-29
1989-06-27
Werner, Frank E.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Grab
414783, 414785, 414758, 414627, 294 673, 294902, 294 88, 294 6731, 294 641, 294 812, 294 814, B66C 116
Patent
active
048424730
ABSTRACT:
The manipulator for sheet-metal pieces is used in conjunction with a sheet-metal working machine and has two rotatable holding members (20) displaceable in three dimensions. The holding members (20) each have both clamping tongs (22), which act on the surface of the sheet-metal piece (24) to be worked, and a clamping strip (23) exerting pressure parallel to the sheet surface. It thereby becomes possible for the sheet-metal piece to be worked, in a first working phase when it is still plane, to be grasped along two parallel edges by means of tongs and, after the first working, to be held only by means of the clamping strips.
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patent: 4496275 (1985-01-01), Harp
patent: 4736971 (1988-04-01), McManus
Dubno Herbert
Hammerle AG
Werner Frank E.
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