Wire dot print head and method for manufacturing same

Details Wire dot print head and method for manufacturing same Wire dot print head and method for manufacturing same

1989-12-11

1992-12-29

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 224

Patent

active

051746638

ABSTRACT:
An improved wire dot print head for increased integrated density is provided. The wire dot print head includes a frame. A plurality of drive coils are mounted within the frame. A lever for driving print wires has a print wire mounted at one end and its other end formed as a hook to act as a rotation support member. A yoke has salients formed thereon equal in number to that of the levers disposed on its end surface. The rotation support member of each lever is retained with a recess formed within a respective yoke and an end surface of the frame and is affixed in place by a retainer spring. When an excitement current flows through the coil, the lever is caused to move so that the print wire rotate about the rotation support member causing the print wires to strike a platen.

REFERENCES:
patent: 4230038 (1980-10-01), Hebert
patent: 4367962 (1983-01-01), Gaboardi
patent: 4653943 (1987-03-01), Sakaida et al.
patent: 4687355 (1987-08-01), Ikehata et al.
patent: 4767227 (1988-08-01), Mitsuishi et al.

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