Selective gripper release

Details Selective gripper release Selective gripper release

1993-01-13

1993-09-14

Dayoan, D. Glenn

Conveyors: power-driven

Conveyor system for moving a specific load as a separate unit

System includes control means responsive to sensing means

1984771, 1984831, 1988037, B65G 4308

Patent

active

052440788

ABSTRACT:
A selective release for grippers on a conveyor, each of which has a movable arm and a stationary arm. Arms move toward each other to grip a planar product (e.g. a newspaper) therebetween and move away from each other to release the product. The gripper is biased toward the closed position and can be moved into the open position by the application of a release force. A rocker cam is provided which can move into a position whereby it urges the movable gripper arm into the open position and into contact with a retaining cam. The retaining cam holds the movable arm in the open position for a period of time sufficient to allow the product to be completely released from the gripper.

REFERENCES:
patent: 4185733 (1980-01-01), Heikinheimo
patent: 4746007 (1988-05-01), Houseman
patent: 4801132 (1989-01-01), Reist
patent: 4905818 (1990-03-01), Houseman
patent: 4968081 (1990-11-01), Beight et al.

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