Apparatus and method for the adjustment of workpiece carriers in

Details Apparatus and method for the adjustment of workpiece carriers in Apparatus and method for the adjustment of workpiece carriers in

1997-02-11

1999-11-16

Ellis, Christopher P.

Conveyors: power-driven

Conveyor section

Unit load conveying surface means moved about an endless or...

1983453, 1988033, B65G 1564

Patent

active

059840854

ABSTRACT:
An apparatus and a method for the automatic adjustment of the distance between the holding members (2) of a pallet (3) connected to a fastening bar (12) and which allow a movement in a transverse plane with respect to the fastening bar between a first auto-locking position on the fastening bar and a second position of free movement. An apparatus for gripping (11) the holding members (12), an apparatus for moving (10) the gripping apparatus (11) from the first to the second position and an apparatus for translating (17) the apparatus for moving (10) parallelly to the fastening bar (12) are provided for. The adjustment method comprises the steps of: controlling the actual location of said arms with respect to said fastening bar in comparison with a stored location and change of the location of said arms only when said locations are different from each other. The apparatus and the method allow for a precise location of the holding members without the need of a displacement to a position of zero and without the need of moving them when they are already at a location to receive the workpiece correctly.

REFERENCES:
patent: 4591991 (1986-05-01), Sticht
patent: 5115901 (1992-05-01), Santandrea et al.
patent: 5255778 (1993-10-01), Santandrea et al.
patent: 5346058 (1994-09-01), Santandrea et al.
patent: 5348142 (1994-09-01), Nishimura et al.
patent: 5474166 (1995-12-01), Santandrea et al.
patent: 5685413 (1997-11-01), McGough

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