Typewriter ribbon lifting and transporting device

Details Typewriter ribbon lifting and transporting device Typewriter ribbon lifting and transporting device

1981-08-03

1983-08-16

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Including mechanism for shifting ribbon laterally at...

400215, 4002361, B41J 3510

Patent

active

043988385

ABSTRACT:
The invention is a mechanism for raising and lowering the ribbon in typewriters to make typed text visible. No separate drive such as a motor or magnet is required to raise the ribbon. The ribbon is raised by means of a spring-loaded bar prior to each character reproduction. To accomplish this, an armature of a control magnet releases a pivoting lever and the spring loaded bar. A pin wheel, driven by a motor and acting on the lever serves to return the bar and allow return of the ribbon. The motor is energized after each character reproduction to advance either a type element carrier or the paper carrier by one character space. In typewriters with ribbon spools fixed to the machine frame, the ribbon spool drive also can be derived from the spring powered bar.

REFERENCES:
patent: 3584722 (1971-06-01), Albrile
patent: 3891078 (1975-06-01), Jung
patent: 4239400 (1980-12-01), Giolitti
patent: 4329072 (1982-05-01), Kacmarcik

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