Printing mechanism with a cam and groove arrangement

Details Printing mechanism with a cam and groove arrangement Printing mechanism with a cam and groove arrangement

1991-06-27

1992-02-11

Eickholt, Eugene H.

Typewriting machines

Including interposed inking device for record-medium

Including mechanism for shifting ribbon laterally at...

4006971, B41J 3522

Patent

active

050871366

ABSTRACT:
A printing mechanism for printing on a recording medium includes a cam mechanism for moving an ink ribbon to an effecting position to act on the recording medium and an initial position for not acting on the recording medium. The cam mechanism includes a cam plate and a cam tracing pin guided in a cam groove within the cam plate, with the cam tracing pin traveling several courses in the cam groove. A driving device imparts rotary motion to the cam mechanism in two directions about a rotary axis and the cam tracing pin is guided in several stages of rotary motion.

REFERENCES:
patent: 4411541 (1983-10-01), Mansfeld et al.
patent: 4533267 (1985-08-01), Kurachi et al.
patent: 4538931 (1985-09-01), Nagashima
patent: 4601596 (1986-07-01), Musso
patent: 4609297 (1986-09-01), Hubner
patent: 4613248 (1986-09-01), Iwase et al.
patent: 4637744 (1987-01-01), Valle et al.
Patent Abstracts of Japan, vol. 8, No. 100, May 11, 1984, JP 59-12891, Jan. 23, 1984.
IBM Technical Disclosure Bulletin, vol. 26, No. 3B, Aug. 1983, Variable Lift and Feed Increment Ribbon/Correction Mechanism, Greenlief et al.
Patent Abstracts of Japan, vol. 5, No. 179, Nov. 17, 1981, JP 56-104438.

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