Moving coil type printing head

Details Moving coil type printing head Moving coil type printing head

1980-12-05

1982-12-07

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9304, B41J 302, B41J 308

Patent

active

043624057

ABSTRACT:
A moving coil type printing head comprises a cantilevered printing lever comprised of a leaf spring having a printing element at its free end. The printing lever has a base portion supported by a holding member, two resilient leg portions integrally extending from the base portion, a triangular lever portion integral with the leg portions, and a tongue portion integrally extending from the base of the lever portion toward the base portion. A fulcrum member is attached to either the tongue portion or a plate member mounted on the holding member and is arranged so as to contact the other of the tongue portion and plate member. An excitable coil is secured to the triangular lever portion of the printing lever and coacts with a magnet flux generating circuit to effect movement of the coil and printing lever to carry out a printing operation.

REFERENCES:
patent: 3467232 (1969-09-01), Paige
patent: 3804008 (1974-04-01), Hoyer
patent: 3834304 (1974-09-01), Potter
patent: 4129390 (1978-12-01), Bigelow

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