| 摘要 |
PURPOSE:To increase the speed of printing operation and to economically prepare a printing head, by arranging both adjacent fixing parts so that both of them are not present on the same plane verical to the printing operation direction of the leading end of a printing wire. CONSTITUTION:Movable parts 25, 26 are arranged so that a wire fixing part 25 is arranged on the side of an iron core 14 from the plate surface of an annular plate like support part 2 and a fixing part 264 is arranged so as to be almost positioned on the plate surface of the support part and both fixing parts 254, 264 are formed so as not to be present on the same plane vertical to the shaft of a printing head. Therefore, a printing wire 253 is formed long and a printing wire 263 is formed short and the leading ends 253b, 263b of both wires are allowed to protrude from a leading end wire guide 20 so as to stand by at an equal interval from a flat object to be printed. By this constitution, a diameter D1 can be reduced without generating such a phenomenon that the adjacent fixing parts 24 are brought into contact with each other and the shortening of the length l of each printing wire and the reduction of friction resistance R can be realized and the speed of a printing head can be increased and the printing head can be economically manufactured. |
