Ink ribbon and correction tape lifting mechanism for a typewrite

Details Ink ribbon and correction tape lifting mechanism for a typewrite Ink ribbon and correction tape lifting mechanism for a typewrite

1985-08-05

1986-12-23

Pieprz, William

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400214, 74 89, 74435, 74810, 74665F, B41J 3522

Patent

active

046309519

ABSTRACT:
A lifting and lowering mechanism for an ink ribbon and a correction tape of a typewriter includes a stepper motor which drives both a ribbon lift arm and a tape lift arm. First and second gear wheels, partially geared at predetermined portions and pivoted along the stepper motor shaft, engage with a gear wheel equipped at the ribbon lift arm and the tape lift arm respectively. The ink ribbon and the correction tape are lifted separately and selectively by changing the direction of the stepper motor rotation.

REFERENCES:
patent: 933652 (1909-09-01), Latta
patent: 2886973 (1959-05-01), Schunemann
patent: 3426608 (1969-02-01), Loughran et al.
patent: 4065980 (1978-01-01), Ichinose
patent: 4173845 (1979-11-01), Heesch
patent: 4511270 (1985-04-01), Bohmer
Greenlief et al, "Variable Lift . . . Mechanism", IBM Technical Disclosure Bulletin, vol. 26, No. 3B, pp. 1580-1582, 8/83.

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