Print element shifter

Details Print element shifter Print element shifter

1982-04-19

1983-05-10

Burr, Edgar S.

Typewriting machines

Case-shift mechanism

For case-shift by type-head movement

4001442, B41J 2524, B41J 124

Patent

active

043827039

ABSTRACT:
An improved print element shifting apparatus having a shifting cam movable in an arc for moving a rotatable print element between two positions by means of a shifting solenoid, and for reducing the mid-stroke peak load on the solenoid. A load modifying linkage arrangement is provided between the shifting solenoid and the shifting cam for imparting movement to the shifting cam alternatively from the one of two drive elements having the greatest mechanical advantage.

REFERENCES:
patent: 3651915 (1972-03-01), Folkens
patent: 3651916 (1972-03-01), Becchi
patent: 3921787 (1975-11-01), Fujio et al.
patent: 4106611 (1978-08-01), Suzuki et al.
patent: 4313681 (1982-02-01), Lendl et al.

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