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2. 发明授权

US3836880A Matrix printer drive element 失效
标题翻译：矩阵打印机驱动元件
公开(公告)号：US3836880A
公开(公告)日：1974-09-17
申请号：US40969973
申请日：1973-10-25
申请人： TELE SPEED COMMUNICATIONS INC
发明人： MATSCHKE A , HOROWITZ J
IPC分类号： B41J2/275 , B41J9/38 , H01F7/14 , H01F7/13
CPC分类号： H01F7/14 , B41J2/275 , B41J9/38
摘要： An improved electromagnet design for use as a dot-matrix printer drive element. A solid winding core is provided with integral pole pieces at both ends. A leaf spring is secured to a first pole piece and extends generally parallel to the axis of the core. A magnetic field shunt piece is secured at the free end of the spring on the side facing the core. A printing wire shoe is also secured to the leaf spring at its free end, and extends away from it. The printing wire is affixed in the shoe and extends back across the axis of the core. In the un-energized condition, there is a gap between the shunt and the second pole piece that is roughly one-half of the desired stroke of the printing wire. The electromagnet is of very low mass, but operates at high speed with a long printing stroke having maximum force at the moment of impact of the printing wire on the printing medium. This design allows a plurality of such drive elements to be radially mounted in a circle with all of the respective printing wires close to the center of that circle. The center of the circle will also coincide with the centerline axis of the printed characters.
摘要翻译：用作点阵打印机驱动元件的改进的电磁铁设计。实心卷绕芯在两端设置有整体极片。板簧被固定到第一极靴并且大致平行于芯的轴线延伸。磁场分流片固定在弹簧的自由端面对芯的一侧。印刷线鞋也在其自由端固定在板簧上，并远离它。印刷线固定在鞋中，并延伸穿过芯的轴线。在未通电状态下，分流器和第二极靴之间存在大约是印刷线的期望行程的一半的间隙。电磁体质量非常低，但是在打印线在打印介质上的冲击时具有最大的力的长打印行程，以高速运行。这种设计允许多个这样的驱动元件径向地安装在圆圈中，其中所有的各个印刷线都靠近该圆的中心。圆的中心也将与打印字符的中心线轴重合。

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