Conveyors: power-driven – Conveyor section – Unit load conveying surface means moved about an endless or...
Patent
1981-06-16
1983-12-20
Valenza, Joseph E.
Conveyors: power-driven
Conveyor section
Unit load conveying surface means moved about an endless or...
198802, B65G 1718
Patent
active
044212275
ABSTRACT:
A tilting shelf type vertical conveyor wherein a plurality of shelves are pivotally mounted between two endless chains that are driven by pairs of upper and lower sprockets, is provided with a shelf control system having effectively a single track formed by a first track half adjacent one chain and a second track half adjacent the other chain. One side of the shelf is provided with two rollers for engaging in one of the tracks, whereas the other side of the shelf is provided with two rollers, generally at right angles to the first two rollers, for engagement with the other track. The shelf position is controlled during the conveying run by one set of rollers and track, and during the return run with the other set of rollers and track. During the transition between runs at the top and bottom, the shelves are controlled by the pivot axis having its position fixed by the sprocket path and only one roller of each pair of rollers engaging its associated track, for which purpose the tracks are of reduced depth adjacent the sprockets and the rollers of each pair are axially offset.
REFERENCES:
patent: 2747724 (1956-05-01), Kornylak
patent: 2869708 (1959-01-01), Nesseth
patent: 3044602 (1962-07-01), Amato
patent: 3365052 (1968-01-01), Kornylak
patent: 3575281 (1971-04-01), Sutton
patent: 3664482 (1972-05-01), Kornylak
patent: 3854570 (1974-12-01), Kornylak
Beall, Jr. Thomas E.
Kornylak Corporation
Valenza Joseph E.
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