Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1991-11-21
1994-05-17
Burr, Edgar S.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
101 9305, B41J 200
Patent
active
053121945
ABSTRACT:
A printing head for a printer comprises a plurality of armatures arranged radially, a drive section including a plurality of drive units which support outer ends of the respective armatures to swing the same, respectively, a plurality of needles engaged respectively with inner ends of the respective armatures and swingable during swinging movement of the armatures, an armature stopper for limiting strokes of the respective armatures on a side opposite to a side where the needles project, and a plurality of guide elements for guiding respectively the armatures in sliding directions of the needles, the intermediate member has a first step arranged at an outer surface of the intermediate member and a second step arranged at an inner surface of the intermediate member, the first step is directed toward a side where the needles project and are abutted directly or indirectly against armature support surfaces of the drive section, respectively, the second step is directed toward a side opposite to the projecting side of the needles, and the armature stopper is abutted against the second step.
REFERENCES:
patent: 4572681 (1986-02-01), Miyazawa et al.
patent: 4640633 (1987-02-01), Hebert
patent: 4653943 (1987-03-01), Sakaida et al.
patent: 4795283 (1989-01-01), Moriya et al.
patent: 4986676 (1991-01-01), Kimura et al.
patent: 5096313 (1992-03-01), Horii
Burr Edgar S.
Citizen Watch Co. Ltd.
Nguyen Anthony
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