Accumulation conveyors

Details Accumulation conveyors Accumulation conveyors

1987-02-10

1988-11-01

Spar, Robert J.

Conveyors: power-driven

Conveyor system for arranging or rearranging stream of items

By longitudinally respacing successive articles in stream

198781, B65G 4726

Patent

active

047812834

ABSTRACT:
In an accumulation conveyor comprising load-carrying rollers, a roller drive is so devised that all rollers under one and the same load at a time are either being positively driven by, or are disengaged from, the said drive. Mechanism controlling engagement of the drive comprises a combination of a clutch-actuating linkage and a priming linkage which prepares the actuating linkage for operation. The mechanism may be positively actuable by a return spring of a sensor device, for example a roller depressable by a load. An assembly of load-carrying rollers may have sprockets drivable by a standard-width chain movable in a constant line. The mechanism may include a transversely movable dogclutch part which forms part of a continuously rotating sprocket assembly engageable with and disengageable from a load-carrying roller, the said clutch part passing through an opening in the sprocket so that the positive drive is picked-up and positively transmitted to the roller.

REFERENCES:
patent: 3327837 (1967-06-01), Covell
patent: 3537568 (1970-11-01), Leach
patent: 4063636 (1977-12-01), Von Stein
patent: 4121709 (1978-10-01), Beghardt
patent: 4172519 (1979-10-01), Leach
patent: 4215775 (1980-08-01), Gebhardt et al.
patent: 4488638 (1984-12-01), Morgan et al.
patent: 4605120 (1986-08-01), Vanderlinde et al.

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