Patent · US Expired

Ribbon feed and elevating mechanism for typewriters or similar machines

US4411541A · kind A · utility

5Cited by

5References

5Claims

0Family size

Assignee

Triumph-Adler A.G. fur Buro- und Informationstechnik · DE

Inventors

Manfred Mansfeld · Frankfurt, DE
Karl Wenderoth · Bad Vilbel, DE

Key dates

Filing date	Jan 27, 1982
Grant date	Oct 25, 1983
Priority date	—
Expiry date	Jan 27, 2002

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J35/10
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A ribbon feed and elevating mechanism is so constructed that active parts for incrementally feeding and for elevating a ribbon from a rest position into one or more working positions form one structural unit mounted on a common shaft thereby providing a compact, easy to assemble unit for association with a typewriter of the type having a print element supported on a movable carriage. Due to the interaction of a lifting lever with a control lever and a pivoting lever to which a ribbon guide is linked, it is possible in a simple manner to raise the ribbon alternately into two different reproduction levels. A rocker, arm also mounted on the common shaft, serves to establish the increment of feed by which ribbon is to be advanced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.