Device for preventing sticking of a magnetic tape to a rotating magnetic
head drum
    1.
    发明授权
    Device for preventing sticking of a magnetic tape to a rotating magnetic head drum 失效
    用于防止将磁带粘附到旋转磁头鼓上的装置

    公开(公告)号:US4951161A

    公开(公告)日:1990-08-21

    申请号:US235117

    申请日:1988-08-22

    摘要: In a magnetic recording/reproducing apparatus of the helical scanning type the rotation speed of the reels in operation is detected and it is judged to be abnormal, if the rotation speed exceeds the upper limit thereof. This upper limit can be varied, depending on various operating modes. When an abnormality is detected, the brake of the reels is driven and the rotation of the drum is stopped. After the tape has been stopped, the tape is unloaded while rotating the supply side reel and the take-up side reel, the drum remaining not rotated.

    摘要翻译: 在螺旋扫描型的磁记录/再现装置中,如果转速超过其上限,则检测到操作中的卷轴的转速,并且判断为异常。 该上限可以根据各种操作模式而变化。 当检测到异常时,驱动卷盘的制动并停止滚筒的转动。 磁带停止后,在供给侧卷轴和卷绕侧卷轴旋转的同时卸下卷筒,滚筒保持不旋转。