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1. 发明授权

US4864440A Magnetic recording and reproducing apparatus 失效
标题翻译：磁记录和再现设备
公开(公告)号：US4864440A
公开(公告)日：1989-09-05
申请号：US188627
申请日：1988-05-02
申请人： Tomiyoshi Satoh , Masahiro Kimura , Hidenobu Takahashi
发明人： Tomiyoshi Satoh , Masahiro Kimura , Hidenobu Takahashi
IPC分类号： G11B17/04 , G11B17/043
CPC分类号： G11B17/04
摘要： A magnetic recording and reproducing apparatus having the magnetic disc cassette with a built-in shutter, a shutter lever for opening and closing the shutter and lock lever for controlling a lowering and raising of a holder are installed on an upper surface of the holder. During the insertion of the magnetic disc cassette, the shutter lever releases the shutter, the lock lever is disengaged from a locking step of an eject lever, the shutter lever is lowered into the cassette and releases the shutter, and a magnetic head contacts the magnetic disc. During ejection of the cassette, a lock releasing step of the eject lever is pressed on a stop lever, the stop lever is rotated and is disengaged from the lock lever, an operation lever of the lock lever is disengaged from the shutter lever, and the cassette is disengaged and simultaneously the shutter is closed. During a protective operation, the shutter lever is pressed on the shutter, a shutter push member of the shutter lever is pressed on the holder and is stopped, a lock claw of the lock lever remains engaged with a lock releasing step of the eject lever, and the cassette and the holder are not lowered and the magnetic head does not collide with the shutter.
摘要翻译：具有内置快门的磁盘盒的磁记录和再现装置，用于打开和关闭快门的快门杆以及用于控制保持器下降和升高的锁定杆安装在保持器的上表面上。在插入磁盘盒期间，快门杆释放快门，锁定杆从弹出杆的锁定步骤脱离，快门杆下降到盒中并释放快门，磁头接触磁盘光盘。在弹出盒式磁带时，弹出杆的锁定解除步骤被按压在停止杆上，止动杆旋转并与锁定杆脱离，锁定杆的操作杆从快门杆脱离，并且盒子脱开，同时快门关闭。在保护操作期间，快门杆被按压在快门上，快门杆的快门推动构件被按压在支架上并停止，锁定杆的锁定爪保持与排出杆的锁定解除步骤啮合，并且盒和保持器不下降，并且磁头不与快门碰撞。

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