| 摘要 |
PURPOSE:To enable easy and reliable assembling of a printing head, by a method wherein a wire matrix type printing head is constituted through combination of components, such as a wire guide assembly unit, a housing plate, and a magnet constituting unit. CONSTITUTION:After guide plates 92, 93, a bearing 911, and a forward end guide are secured to a wire guide assembly unit 9, monolithically united with a housing plate 7, a wire guide 94 is inserted. A wire 80 of a magnet constituting unit 8, consisting of a yoke plate 81, a core plate 85, and a coil 84, is then inserted, and a projection 835 engages an aperture in the plate 7 to place the unit 8 on the plate 7. A leaf spring 6, whereto a mass 5 is fastened, a press rubber 4, a damper rubber 3, and the plate 7 are laid thereon, and a plate 1 is covered so that the yoke plate 81 engages between projections 105 on the plate 1 to secure the plate 1 to the plate 7 by means of a screw 103. A stroke of an armature 82 is regulated by a screw 104. |
