Work equalizer and loading for a single element printer selectio

Details Work equalizer and loading for a single element printer selectio Work equalizer and loading for a single element printer selectio

1980-07-30

1982-04-20

Wright, Jr., Ernest T.

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Imprint by pivoting of type-head-carrier and type-head...

B41J 160

Patent

active

043256449

ABSTRACT:
An improvement to the shuttle selection control system disclosed in U.S. Pat. No. 4,094,397 is described where a biasing spring is urgingly engaged with the rack of a rack and pinion arrangement used to rotate the type element, and thereby place a spring load on the system such that the force between the slider blocks of the selection system and the stop member engaged by the slider block will be reliably increased, while at the same time, preventing an increase in the drive requirements of the drive motor for the system. This spring biasing has a secondary benefit in that it tends to uniformly cause consolidation of all tolerances and relative movement in the system due to wear and thus stabilize the system for improved detenting of the typehead.

REFERENCES:
patent: 3983984 (1976-10-01), de Kler
patent: 4094397 (1978-06-01), Hughes

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