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1. 发明授权

US3695410A Serial printing machine 失效
标题翻译：串行打印机
公开(公告)号：US3695410A
公开(公告)日：1972-10-03
申请号：US3695410D
申请日：1970-02-04
申请人： I Q DEVICES INC
发明人： KAPP LUDWIG J
IPC分类号： B41J1/50 , B41J7/52 , B41J1/40
CPC分类号： B41J1/50 , B41J7/52
摘要： A serial printing machine having a platen and a print carriage, head assembly having a type wheel with a plurality of lines of type, means for moving the type wheel vertically with respect to the platen to select the desired line of type and means for moving the type wheel horizontally to select the desired character; a pair of endless ribbons which are selectable so that only one of them is in printing position between the type character and the platen at any particular instant; a holding coil positioned such that when current flows in the coil, the type hammer is held out of contact with the type wheel; a pair of rails of high magnetic permeability running laterally, essentially parallel to the platen, a plurality of series connected coils wound around high magnetic permeability supports between the rails such that when current flows through the coils, a magnetic field is established which stores potential energy in the type hammer assembly; when the current in the holding coil is turned off and the potential energy is released, the type hammer moves into percussive contact with the type wheel to thereby cause the selected character to be printed.
摘要翻译：一种具有压板和打印托架的串行打印机，具有多个类型的类型轮的头组件，用于相对于压板垂直移动型轮的装置，以选择所需的类型和用于移动水平选择所需字符; 可选择的一对环形带，使得它们中的仅一个在任何特定时刻处于类型字符和压板之间的打印位置; 保持线圈定位成使得当电流在线圈中流动时，类型的锤被保持与型轮不接触; 一对高磁导率轨道，横向运行，基本上平行于压板，多个串联连接的线圈缠绕在轨道之间的高磁导率支架上，使得当电流流过线圈时，建立磁场，其存储势能在锤头组合中; 当保持线圈中的电流被关闭并且势能被释放时，类型的锤移动到与型轮的冲击接触中，从而使所选择的字符被打印。

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