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    • 6. 发明授权
    • Auto reverse mechanism for tape recorder/playback devices
    • 磁带录像机/回放装置的自动反转机构
    • US4871128A
    • 1989-10-03
    • US195839
    • 1988-05-19
    • Taro TanakaJoji Tanaka
    • Taro TanakaJoji Tanaka
    • G11B15/02G11B15/093G11B15/44
    • G11B15/093G11B15/442G11B15/444
    • The present invention is an auto reverse mechanism for tape recorder/playback devices. In the present invention, if the tape travel in either direction is completed to stop the rotation of the reel turntables, a detector at first detects the halt of the reel turntables through the change-over clutch, and mechanically transmits it to the trigger. The trigger then drives the intermittent drive by the drive force of the drive belt mechanism through the drive force transmission, from a position away from the linkage with the drive force transmission to a position for the linkage with it. Thus, the intermittent drive brought into the position for the linkage with the drive force transmission is driven by the drive force of the drive belt mechanism through the drive force transmission, to drive the a change-over mechanism from one action position to the other action position, as one of its intermittent actions, for actuating the switching action of the change-over clutch and at the same time for selectively detaching either of the pinch rollers from the capstan. Thus, the predetermined automatic change of tape travel direction is released to prevent further driving. Through these actions, the present invention allows the tape travel direction to be changed after completion of tape travel in either direction, by using only the drive force of the tape travel mechanism.
    • 本发明是用于磁带记录器/回放装置的自动倒转机构。 在本发明中,如果磁带在两个方向上行进以停止卷轴转盘的旋转,则检测器首先通过转换离合器检测卷轴转盘的停止,并机械地将其传送到触发器。 然后,触发器通过驱动力传递装置通过驱动带机构的驱动力从远离与驱动力传递的联动装置的位置驱动间歇驱动到用于与其连动的位置。 因此,进入用于与驱动力传递的联动的位置的间歇驱动被驱动带机构的驱动力通过驱动力传递驱动,以将切换机构从一个动作位置驱动到另一个动作 作为其间歇动作之一,用于致动转换离合器的切换动作,并且同时用于选择性地将夹送辊与绞盘分离。 因此,释放磁带行进方向的预定的自动变化以防止进一步的驱动。 通过这些动作,本发明通过仅使用带行进机构的驱动力,能够在磁带行进完成之后沿任一方向改变磁带行进方向。