| 摘要 |
PURPOSE:To unnecessitate wire-top bearing and a backside guide in a conventional ink-type wire printer and to eliminate defects such as leakage and drying of ink derived from these members, by using a typeprinting pin during typeprinting. CONSTITUTION:The attractable part 21 of a leaf spring 2 is attracted to the end surface of the upper arm of a magnetic core 11. During typeprinting, the attraction is released by operation of a coil 12, the leaf spring 2 is swung around a connection point O by the elastic repulsing force of the spring itself, the typeprinting head surface 15 of a typeprinting pin 3 fixed to the top end of the leaf spring is also swung while draing the same locus as the swinging locus A of the leaf spring 2, and typeprinting is done on the intersecting point B of a printing sheet 20 crossing the swinging locus A. Since the typeprinting pin 3, drawing the same locus as the swinging locus of the leaf spring 2 and following the leaf spring 2, moves in this way, it is not necessary to locate a coupling coil between a typeprinting wire and the leaf spring as in a conventional ink-type wire printer. In addition, a guide member for guiding the typeprinting pin 3 itself is also unnecessitated. Consequently, smooth typeprinting and proper amount-transfering can be performed. |
