Reciprocating lift mechanism

Conveyors: power-driven – With means to facilitate working – treating – or inspecting... – Means to transfer a load back and forth between the mainline...

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74105, 74110, B65G 3700

Patent

active

053202082

ABSTRACT:
The present invention teaches method and apparatus for a single stroke kinematic system, having a required mid stroke dwell, which permits positioning of the mid stroke dwell with respect to both space and time. A four bar linkage mechanism is disclosed having a bottom stroke and a top stroke toggle thereby kinematically providing the acceleration ramps into and out of the bottom stroke and top stroke dwells. A cycloidal drive mechanism is provided to drive the four bar linkage and providing time/phase shifting of the cycloidal drive's mid cycle dwell.

REFERENCES:
patent: 3745868 (1973-07-01), Prentice
patent: 3789676 (1974-02-01), Brems
patent: 4295780 (1981-10-01), Wada et al.
patent: 4398627 (1983-08-01), Saccani
patent: 4416198 (1983-11-01), Rasenberger
patent: 4494282 (1985-01-01), Ida et al.
patent: 4545266 (1985-10-01), Brems
patent: 4600095 (1986-07-01), Brems et al.

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