Sheet feeding method and apparatus

Details Sheet feeding method and apparatus Sheet feeding method and apparatus

1989-03-16

1990-04-17

Shaver, Kevin P.

Sheet feeding or delivering

Feeding

Separators

271 10, 271 19, 271 22, B65H 330

Patent

active

049173685

ABSTRACT:
A sheet feeding method and apparatus particularly suited to handling plastic sheets having a tendency to adhere to each other under electrostatic action, in which the uppermost sheet of a stack is fed by first lifting the rear edge of the sheet into a generally arcuate configuration and translating a lifting member forwardly under the lifted rear edge to progressively separate the uppermost sheet from the rest of the stack. The lifting members preferably in the form of an idler roller which translates to a position in cooperation with a drive roller so that the sheet becomes sandwiched between the tow rollers for final feeding from the stack. The mechanism features a pick assembly particularly suited for engaging and lifting the rear edge of each sheet into a predictable arcuate configuration.

REFERENCES:
patent: 3406961 (1968-10-01), Walton
patent: 3588092 (1971-06-01), Dubas
patent: 3768807 (1973-10-01), Spengler
patent: 3813094 (1974-05-01), Walton et al.
patent: 4157823 (1979-06-01), Morton
patent: 4231563 (1980-11-01), Boucraut
patent: 4579329 (1986-04-01), Frost et al.
patent: 4776575 (1988-10-01), Mayer et al.
patent: 4802662 (1989-02-01), Hobbelt et al.

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