Accumulating conveyor of the low pressure type

Details Accumulating conveyor of the low pressure type Accumulating conveyor of the low pressure type

1987-05-20

1988-06-28

Spar, Robert J.

Conveyors: power-driven

Conveyor section

Live roll

198790, B65G 13071

Patent

active

047533390

ABSTRACT:
In a low pressure accumulator conveyor of the type where cartons are conveyed on a surface defined by successive freely rotatable rollers which are driven from beneath by frictional engagement with a continuous belt, the belt is held in periodically released driving engagement with the rollers by a plurality of vertically movable supporting assemblies, each of which includes a compound sheave wherein the bottom wall of the groove supporting the belt includes a major portion cylindrically curved about the rotational axis of the sheave, and a minor portion convexly curved about a radius which varies at a substantially uniform rate from a maximum at each end thereof equal to the radius of the major portion of the groove wall to a centrally located minimum less than that of a cam lobe on the sheave which thereby periodically disengages the belt from its associated carton-carrying roller.

REFERENCES:
patent: 3420356 (1969-01-01), De Good
patent: 4174777 (1979-11-01), Riehle
patent: 4266659 (1981-05-01), Meyer et al.
patent: 4308946 (1982-01-01), Ouellette
patent: 4345684 (1982-08-01), Rolland
patent: 4502593 (1985-03-01), van den Goor

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