Matrix pin-print head of the hinged-clapper-armature constructio

Details Matrix pin-print head of the hinged-clapper-armature constructio Matrix pin-print head of the hinged-clapper-armature constructio

1989-07-28

1991-08-13

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

050392395

ABSTRACT:
An armature (4) is coordinated to each print pin (1) with a pin guide case (9) and in a coil support case (14) an electromagnetic coil (3) and magnet yokes (3a, 3b) in a matrix pin print head. In order to improve the system of the individual armatures (4) and their support, all armatures (4) are maintained in operations with a shaped sheet metal (19, 19a) and are connected thereby to each other and thereby form a unit (4, 19). Thus unit (4, 19) is centered via in the pin guide case (9) via several cogs (25), distributed over the circumference, and cogs are provided, which center this unit (4, 19) also in a coil support case (14).

REFERENCES:
patent: 4407591 (1983-10-01), Adamoli et al.
patent: 4548521 (1985-10-01), Wirth et al.
patent: 4600321 (1986-07-01), Kwan
patent: 4626115 (1986-12-01), Norigoe
patent: 4648730 (1987-03-01), Cattaneo
patent: 4723854 (1988-02-01), Sakaida et al.

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