Matrix print wire solenoid

Details Matrix print wire solenoid Matrix print wire solenoid

H - Electricity

01

F

101/96.07

H01F 7/16 (2006.01) B41J 1/18 (2006.01) B41J 2/285 (2006.01)

Patent

CA 1093382

Title of the Invention MATRIX PRINT WIRE SOLENOID Abstract of the Disclosure i A matrix print wire solenoid has a small diameter print wire which wire is propelled against printing paper and inking ribbon by the linear motion of the solenoid plunger, to which the print wire is attached, in an improved impact printer having a plurality of solenoids positioned in a row for use in dot matrix printing. The solenoid features a low cost construction, a reduction in size, and increased operating speed, and has pole pieces which are separated by an inner gap and which pieces are aligned with a coil bobbin which provides a guide surface for the armature plunger. The space between the plunger and a forward bushing or spacer is occupied by a coil spring which has one end seated over a portion of the armature and the other end seated against the face of the bushing. The coil bobbin defines an air gap between one pole piece and the armature.

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