| 摘要 |
PURPOSE:To prevent a false operation of a print wire and to make possible a high speed printing to be carried out by positioning a slit such that it is positioned between a closed magnetic circuit formed of a yoke, an auxiliary yoke, a plunger and a core and a closed magnetic circuit formed adjacent thereto. CONSTITUTION:A plunger 13 is atracted in a direction of a core 6, and an armature 14 is rotated so as to push out a printing wire 22 against a force of a return spring 10 when a current is flowed in a exciting coil 7, since a closed magnetic circuit is formed from a yoke 5, an auxiliary yoke 11, a plunger 13 and a core 6. At this time, a dot is printed on a printing blank by a printing wire 22 through an ink ribbon. A slit 24 is provided between this closed magnetic circuit and a closed magnetic circuit adjacent thereto, and it is positioned between the armatures 14, 14. A magnetic interference against an adjacent position is controlled by this slit 24 considerably. |
