| 摘要 |
PROBLEM TO BE SOLVED: To make a magnetic flux efficiently flow across an armature spacer and a yoke without complicating a manufacturing process. SOLUTION: A fitting structure for fitting the cylindrical part 25 on the inner peripheral side of the yoke 11 to the ring-shaped part 20 on the inner peripheral side of the armature spacer 12 is provided in a wire dot printing head and magnetic flux is made efficiently flow across the armature spacer 12 and the yoke 11 through the contact surface of the cylindrical part 25 on the inner peripheral side of the yoke 11 and the ring-shaped part 20 on the inner peripheral side of the armature spacer 12. COPYRIGHT: (C)2004,JPO&NCIPI
|
