Stylus driving apparatus for printers

Details Stylus driving apparatus for printers Stylus driving apparatus for printers

1982-08-05

1984-11-27

Sewell, Paul T.

Printing

Selective or progressive

Bed and platen machines

101 9348, 400121, 4001572, B41J 312, B41J 938

Patent

active

044845197

ABSTRACT:
A stylus driving apparatus for an impact dot line printer is provided with a magnetic first yoke adjacent one side of a permanent magnet, a plurality of magnetic cores each having an exciting coil, a plurality of magnetic leaf springs disposed adjacent to a tip end of each core at a free end thereof, an armature secured to the free end of the leaf spring, and a magnetic second yoke diposed on the other side of the permanent magnet. The second yoke has a plurality of recesses. In the waiting position where the free end of the leaf spring is attracted to the tip end of the core, at least a part of the armature is surrounded by the inner wall of the recess of the second yoke.

REFERENCES:
patent: 3672482 (1972-06-01), Brumbaugh et al.
patent: 4044668 (1977-08-01), Barrus et al.
patent: 4225250 (1980-09-01), Wagner et al.
patent: 4348120 (1982-09-01), Isobe et al.
patent: 4351235 (1982-09-01), Bringhurst
patent: 4393771 (1983-07-01), Tatsumi

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