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    • 5. 发明授权
    • Magnetic recording/reproducing apparatus and rotary head drum device
    • 磁记录/再现装置和旋转磁头鼓装置
    • US06751057B2
    • 2004-06-15
    • US10057551
    • 2002-01-25
    • Motoyoshi FujimoriIchiro HashimotoAkira Itou
    • Motoyoshi FujimoriIchiro HashimotoAkira Itou
    • G11B1562
    • G11B5/584G11B5/5921
    • A guide plate is provided along the respective outer periphery of rotary and fixed drums on the upstream side relative to an inlet portion where a magnetic tape starts making contact with a magnetic head on the rotary drum, an airflow attendant on the rotation of the rotary drum is stripped by a wedge-shaped edge on the guide plate and is released to the outer periphery side by a guide surface of the guide plate, and the airflow flowing in the axial direction into the space between the tape and the rotary drum is restrained by an extended portion of the guide plate. In a rotary head drum device for a magnetic recording/reproducing apparatus, formation of an excess air film near an inlet portion of the tape is restrained, and stable recording and reproducing can be achieved without raising the tape tension, thereby enhancing the life of the tape.
    • 引导板沿着相对于磁带开始与旋转磁鼓上的磁头接触的入口部分的上游侧的旋转和固定磁鼓的相应外周设置,在旋转磁鼓的旋转中伴随着气流 被引导板上的楔形边缘剥离,并被引导板的引导表面释放到外周侧,并且沿轴向方向流入带和旋转鼓之间的空气被限制 导板的延伸部分。 在用于磁记录/再现装置的旋转磁头鼓装置中,限制了在带的入口部分附近形成过量的空气膜,并且可以在不增加带张力的情况下实现稳定的记录和再现,从而提高 胶带。