Matrix printing head with forward and return articulated-armatur

Details Matrix printing head with forward and return articulated-armatur Matrix printing head with forward and return articulated-armatur

1990-11-19

1992-09-29

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 227

Patent

active

051509768

ABSTRACT:
An electromagnetic drive mechanism for a pin in a matrix printing head has a first magnet with an articulated armature, wherein a free end of the armature acts on the pin and can be returned to a disengaaged position by a recovery mechanism. The recovery mechanism comprises another articulated-armature magnet with an armature identical with that of the first magnet but with a yoke mounted on a side of the armature that faces away from a yoke of the first magnet.

REFERENCES:
patent: 409675 (1889-08-01), Field
patent: 3900094 (1975-08-01), Larsen et al.
patent: 4244658 (1981-01-01), Mori
patent: 4522122 (1985-06-01), Mazumder
patent: 4852481 (1989-08-01), Kobryn et al.
patent: 4988223 (1991-01-01), Hilkenmeier et al.

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