Method and apparatus for stacking products

Details Method and apparatus for stacking products Method and apparatus for stacking products

1988-12-21

1990-04-17

Spar, Robert J.

Conveyors: power-driven

Conveyor system for establishing and moving a group of items

Having items discharged from plural distinct outlets into group

414791, B65G 4726

Patent

active

049172298

ABSTRACT:
A method and apparatus for stacking products such as trays are disclosed utilizing a rotary ferris wheel device which raises product off a conveyor and places it on a platform where it is pushed off unto additional product being conveyed on the conveyor. Specifically, an arm is rotated from a noninterfering position below the conveyor until a pivotally mounted shoe on the free end of the arm abuts the product without gripping or attachment thereto, raises the product off the conveyor, and places the product on a platform. The next product on the conveyor is allowed to be conveyed on the conveyor without interference. After the arm is rotated from under the platform into a noninterfering position below the conveyor, the product is pushed off the platform unto the product which remained on the conveyor. Thereafter, the stacked products continue to be conveyed on the conveyor. In the preferred form, the shoes of the arm are maintained in a parallel relation to the conveyor by sprockets rotatably fixed to the shoes and to the shaft forming the pivot axis for the arm, with the sprockets being in driving relation to each other by a chain extending therebetween.

REFERENCES:
patent: 3455085 (1969-07-01), McIntyre
patent: 3488693 (1970-01-01), Brinkmeier
patent: 3978571 (1976-09-01), Orlando et al.
patent: 4307800 (1981-12-01), Joa
patent: 4450949 (1984-05-01), Buschor et al.
patent: 4569620 (1986-02-01), Lynch
patent: 4646908 (1987-03-01), Gambetti
patent: 4668148 (1987-05-01), Sample et al.

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