| 摘要 |
PURPOSE:To provide a dot printer head which highly facilitates the assembly of an armature and a needle connected securely to each other on a guide holder while enabling the unitization of the armature, the needle and the guide holder. CONSTITUTION:A plurality of cores 26 are provided outside a circular yoke 25 and a coil 27 is mounted thereon. Then, an armature guide 34 adapted to hold both sides of an armature 33 in such a manner as to free to rise or fall and needle guides 30-32 adapted to hold needles 38 fixed on the armature 33 in such a manner as to free to slide aligning it are provided on a guide holder 35 and a spring 42 is provided on the guide holder 35 to energize the armature 33 in the returning direction while a pressure setting section (keep plate) 43 is provided to raise the pressure of the spring 42 up to a specified level. |
