| 摘要 |
PURPOSE:To enhance durability and to reduce cost by a reducing abrasion, by integrally forming guides reaching a drive source side from the leading end parts of wire heads through the intermediate parts thereof, and forming the bearing of said wire heads so as to have oblique holes along the axial direction of each wire head. CONSTITUTION:Because the wire heads 5 of a dot printer are arranged in a row in a platen side but arranged on the same circumference of a circle in a coil side, said heads are arranged obliquely with respect to the axis of a platen. Therefore, the bearing part provided at the leading end part 2 of wire head guide, the bearing part at the intermediate part 4 thereof and the bearing of the wire heads in the coil side are molded so as to have oblique holes along the wire heads 5. The wire head guide reaching the rear end guide from the leading end guide through the intermediate guide is constituted with one part. Therefore, the bearing part is reduced in abrasion and has durability and, further, because the wire head guide can be formed as one part by injection molding, the cost reduction of the apparatus can be achieved. |
