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    • 6. 发明授权
    • Cam driven mode selection mechanism for tape recorder
    • 磁带录像机的凸轮驱动模式选择机构
    • US4674001A
    • 1987-06-16
    • US594092
    • 1984-03-28
    • Akira TakahashiIsao Hasegawa
    • Akira TakahashiIsao Hasegawa
    • G11B15/10G11B15/44G11B5/54G11B15/02
    • G11B15/442
    • The mode selection mechanism in a magnetic tape recording and reproducing apparatus is adapted to move a mode plate and a forward/reverse changeover plate to given positions in response to a mode selecting manual operation and to thereafter move a power plate by a predetermined stroke in a direction prependicular to the movements of the mode plate and of the changeover plate, thereby creating any desired tape feeding mode. The mode plate and the changeover plate are independently moved by rotations of a mode cam which is intermittently moved by a tape drive motor through a power transmission means. The power plate is moved by rotation of a power cam which is moved by the same motor and may be interrupted by a power transmission means after the power cam makes a predetermined angular rotation.
    • 磁带记录和再现装置中的模式选择机构适于响应于模式选择手动操作将模板和正/反转换板移动到给定位置,并且此后将动力板以预定行程移动到 方向垂直于模板和转换板的运动,从而产生任何期望的带馈送模式。 模式板和转换板通过由带驱动电动机通过动力传递装置间歇地移动的模式凸轮的旋转而独立地移动。 功率板通过由相同的电动机移动的动力凸轮的旋转而移动,并且在动力凸轮进行预定的角度旋转之后可以被动力传递装置中断。