Type disc typewriter with electronic positioning control
    1.
    发明授权
    Type disc typewriter with electronic positioning control 失效
    带电子定位控制的光盘打字机

    公开(公告)号:US4334790A

    公开(公告)日:1982-06-15

    申请号:US099541

    申请日:1979-12-03

    IPC分类号: B41J1/30 B41J7/54 B41J23/32

    CPC分类号: B41J7/54

    摘要: Keyboard generated signals are digitally encoded and converted to varying voltages for application to a coil for generating magnetic forces. The magnetic forces act on a spring mass system including a type disc to rotate the type disc to a selected angular position. The rest position of the disc at any selected angular position is established when the applied magnetic force and the force of an oppositely acting spring reach equilibrium condition. The spring stores or releases energy according to whether the applied magnetic force is greater or less than the existing spring force. The parameters of the system are so chosen that movement from one angular position of rest to another is smoothly accomplished in a given time.

    摘要翻译: 键盘产生的信号被数字编码并转换成变化的电压,以应用于产生磁力的线圈。 磁力作用在包括类型盘的弹簧质量系统上以将型盘旋转到选定的角位置。 当施加的磁力和相反作用的弹簧的力达到平衡状态时,在任何选定的角位置处确定盘的静止位置。 弹簧根据所施加的磁力是否大于或小于现有的弹簧力来储存或释放能量。 系统的参数被选择为在给定时间内平稳地完成从静止角度到另一个角位置的运动。