Material or article handling – Stock pulling or pushing – Stock end face pushers
Patent
1983-04-08
1985-02-26
Spar, Robert J.
Material or article handling
Stock pulling or pushing
Stock end face pushers
414753, 271268, 271 85, B65H 508
Patent
active
045015236
ABSTRACT:
Apparatus for feeding platelike workpieces to a machine tool comprises a feed deck adapted to carry a workpiece, a carriage, which carries tongs for gripping the workpiece and is movable in longitudinal and transverse directions to move the workpiece in said directions, a carriage track, which extends in said transverse direction and is mounted on said feed deck to be movable in said longitudinal direction and extends in said transverse direction and is adapted to guide said carriage in said transverse directions, workpiece-supporting elements, which are vertically adjustably mounted on said feed deck and adapted to support a workpiece and arranged in a plurality of rows extending in said transverse direction, a plurality of actuating shafts, each of which is operatively connected to the workpiece-supporting elements of one of said rows and rotatable to vertically adjust the workpiece-supporting elements of said row and is non-rotatably connected to a crank arm, which is operable by a bar, which is rigid with said carriage track. To permit a simple adjustment and a uniform raising and lowering of the workpiece-supporting elements, the workpiece-supporting elements of each row are mounted on at least one vertically adjustable crossbeam, which is operatively connected to one of said actuating shafts by a toggle joint comprising a first lever, which is non-rotatably connected to said actuating shaft, and a second lever which is pivoted near one end to said first lever and near its other end to the associated crossbeam.
Kelman Kurt
Spar Robert J.
Underwood Donald W.
Voest-Alpine Aktiengesellschaft
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