Typewriting machines – Including type-set-assemblage mounted on carrier and... – Imprint by movement of record-medium against type-face
Patent
1986-06-26
1988-09-06
Pieprz, William
Typewriting machines
Including type-set-assemblage mounted on carrier and...
Imprint by movement of record-medium against type-face
101 9348, 335281, 335262, B41J 938
Patent
active
047688920
ABSTRACT:
The present invention relates to an assembly of electromagnetic actuators for the hammers of an impact printer arranged side by side and extending along a line. Each actuator comprises a first stator part formed with at least one pole piece, a second stator part formed with at least one pole piece and positioned relative to the first stator part so that the pole pieces are spaced apart so as to form a gap therebetween. A single coil is associated with one of the stator parts. Each actuator also includes an armature member formed with a body of non-magnetizable material, at least one armature element of magnetizable material and a hammer head. The armature member is supported between the stator parts so that the armature element is located adjacent to the gap. Energization of the coil causes the generation of a flux which passes across the gap and through the armature element tending to move the armature element into the gap and to cause the hammer head to move into a print position.
According to the invention the components of adjacent actuators are complementary in shape so that projecting components of each actuator engage in recessed components of the adjacent actuators whereby the overall length of the assembly along the line is less than the sum of the overall widths of the individual actuators.
REFERENCES:
patent: 2743398 (1956-04-01), Thompson
patent: 3144226 (1964-08-01), Noble
patent: 3386377 (1968-06-01), Dalton
patent: 3513773 (1970-05-01), Ponzano
patent: 3821672 (1974-06-01), Sturm
patent: 3971311 (1976-07-01), Deproux
patent: 4233585 (1980-11-01), Sugimoto et al.
patent: 4242955 (1981-01-01), Wasserman
patent: 4425845 (1984-01-01), Bohg et al.
patent: 4480935 (1984-11-01), Kurihara
patent: 4527139 (1985-07-01), Bohg et al.
Patterson et al, "Horizontal Sliding . . . Mechanism", IBM Tech. Disclosure Bulletin, vol. 25, No. 11B, pp. 6284-6285, 4-83.
Bohg et al, "Cavity Armature . . . " IBM Technical Disclosure Bulletin, vol. 25, No. 11B, p. 6184, 4-83.
Meier, "Actuators for . . . Printer", IBM Technical Disclosure Bulletin, vol. 21, No. 12, pp. 4813-4816, 5-79.
Brown Douglas S.
Patterson William A.
Thorne William D.
Bigel Mitchell S.
Chiaviello, Jr. R. M.
Coffman E. Ronald
International Business Machines - Corporation
Pieprz William
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