Self-aligning and self-leveling pinch roll for magnetic card tra

Details Self-aligning and self-leveling pinch roll for magnetic card tra Self-aligning and self-leveling pinch roll for magnetic card tra

1974-12-30

1976-06-22

Schacher, Richard A.

Sheet feeding or delivering

Delivering to stack and feeding therefrom

With sheet sensor for selective location

226180, 226187, 226192, 271250, 271274, 271DIG9, B65H 506

Patent

active

039647390

ABSTRACT:
A magnetic card transport system for an electronic typewriter comprises a reversible drive roller and a coacting pinch roller which form a nip through which a magnetic card is passed. The drive roll and pinch coact to move the card in opposite directions. A guide surface is provided which is engaged by one longitudinal edge of the card, and guide springs are provided which engage the other longitudinal edge of the card to urge the card into engagement with the guide surface for registration purposes. The pinch roll is mounted in such a manner that it may freely oscillate. The oscillation is such that the pinch roll axis pivots in each direction from a line substantially perpendicular to the guide surface between 1/2.degree. and 3.degree. about a vertical axis normal to its axis of rotation to allow for self-alignment to maintain the card in alignment with the guide surface. With this construction, manufacturing tolerances of the pinch roll assembly for alignment are not as critical when the roller is not free to rotate about a vertical axis to self-align. The pinch roll is so mounted that it may also rock and be self-leveling to permit the full width thereof to engage the card.

REFERENCES:
patent: 2535234 (1950-12-01), Schwartz
patent: 3402868 (1968-09-01), Hammond
patent: 3438558 (1969-04-01), Hammond
patent: 3561660 (1971-02-01), Nicol et al.
patent: 3704360 (1972-11-01), McFadden

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