Dot print head

Details Dot print head Dot print head

1991-11-04

1992-11-17

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 225

Patent

active

051637618

ABSTRACT:
A dot print head includes an armature assembly constructed by providing an armature guide holding a plurality of armatures for swing motion in a cup-shaped housing having one open end, slidably guiding a plurality of print wires attached to the inner ends of the armatures by a wire guide, interposing armature return springs between the armatures and the armature guide, disposing an armature stopper in contact with the backsides of the armatures opposite to the front sides of the same facing the armature guide, and disposing stopper seats between the inner surface of the bottom wall of the housing and the inner surface of the armature stopper; and a yoke assembly joined and fastened to the armature assembly with fastening members.

REFERENCES:
patent: 4433927 (1984-02-01), Cavallari
patent: 4541745 (1985-09-01), Gugel
patent: 4594010 (1986-06-01), Jachno
patent: 4723854 (1988-02-01), Sakaida et al.
patent: 4884905 (1989-12-01), Smith
patent: 5009528 (1991-04-01), Horii et al.
patent: 5033885 (1991-07-01), Gugel et al.

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