| 摘要 |
PURPOSE:To enhance assembling workability and to contrive to enhance durability, by a method wherein the bending amount of a needle is made extremely small to shorten the length of the needle while one needle guide is provided and the needle is guided to the small hole of the needle guide by a tapered needle guide opening of which the inner surface is inclined when the needle is inserted through the small hole of the needle guide. CONSTITUTION:A coil 2 is excited to attract a core 3 to an armature 5 and a needle 17 is slid to perform printing. Because the needle 17 is held under a state near to a straight line, the friction force of the needle 17 and a needle guide 14 is made small to enhance durability and the total length of the needle 17 can be shortened while the mass of the needle 17 is made small to enable high speed printing. When a needle guide 14 is inlaid with the leading end of a guide frame 9, the needle 17 is guided along the oblique surface 22 of a needle guide opening 19 to be inlaid with a small hole 18 and the inlay of the needle 17 is performed in an extremely easy manner. Assembling work can be enhanced markedly and friction is small and durability can be enhanced. |
