Ribbon feed device including tensioning control means

Details Ribbon feed device including tensioning control means Ribbon feed device including tensioning control means

1987-10-30

1989-02-14

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Ribbon-feeding mechanism

400211, 4002361, 400696, 4006971, B41J 3352

Patent

active

048042838

ABSTRACT:
The invention provides a ribbon feed device wherein a ribbon take-up mechanism located on a ribbon frame which is mounted for up and down pivotal motion on a carrier and carrying thereon an elongated ribbon along a platen takes up the ribbon in response to upward pivotal motion of the ribbon frame in order to effect printing of a character or erasing of a printed character. During downward pivotal motion of the ribbon frame, the path of the ribbon is bent by a pressing member secured to the carrier to remove possible slacking of the ribbon which may appear along a ribbon feeding route upon printing or erasing operation so as to apply suitable tension to the ribbon.

REFERENCES:
patent: 2886162 (1959-05-01), Eissfeldt et al.
patent: 3724633 (1973-04-01), Korb et al.
patent: 4247210 (1981-01-01), Kacmarcik et al.
patent: 4411542 (1983-10-01), Wenderoth et al.
patent: 4462707 (1984-07-01), Falconieri
IBM Technical Disclosure Bulletin, "Erase Ribbon Lift and Advancing Mechanism", Mathews, vol. 19, No. 7, Dec. 1976, pp. 2393-2394.

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