Toggled switch for use in a sheet feed apparatus

Details Toggled switch for use in a sheet feed apparatus Toggled switch for use in a sheet feed apparatus

1990-02-16

1991-08-27

Olszewski, Robert P.

Sheet feeding or delivering

Feeding

Separators

271258, 271265, B65H 702

Patent

active

050427903

ABSTRACT:
A sheet transport apparatus has opposed sheet transport guide baffles defining a sheet transport path having an upstream and downstream direction and, a switch adjacent the path to detect the presence of a sheet in the path, the switch having a main switch body fixedly mounted adjacent the path, a switch actuator movable between a rest position and a switch actuated position including an actuator arm having a free end and being pivotally mounted on an actuator pivot at the other end to the main switch body and movable between a position associated with the said rest position and switch actuated position, a switch actuator tip pivotally mounted to the free end of the actuator arm and movable between a first position extending the length of the arm into said path detecting the presence of a sheet in the path and a second position pivoted toward the sheet transport upstream direction out of the sheet transport path, the actuator tip being spring biased to the first position enabling positive switch actuation by the passage of a sheet in the downstream direction of the path and passively movable to the second position against the bias by the removal of a sheet from the path in the upstream direction.

REFERENCES:
patent: 3875860 (1975-04-01), Barber
patent: 3902716 (1975-09-01), Lewis
patent: 4390118 (1983-06-01), Gardner, Jr.
patent: 4632379 (1986-12-01), Steinhilber
patent: 4671441 (1987-06-01), Hauslaib
patent: 4690577 (1987-09-01), Kikuchi et al.
patent: 4777729 (1988-10-01), Hausler
patent: 4793605 (1988-12-01), Tajima
patent: 4809969 (1989-03-01), Bastow et al.
patent: 4925177 (1990-05-01), Nakamura et al.
Dicesare et al. "Paper Thickness Detection" Xerox Disclosure Journal, vol. 15, No. 1. Jan./Feb. 1990, pp. 57-58.

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