公开(公告)号：US5734537A

公开(公告)日：1998-03-31

申请号：US652271

申请日：1996-05-23

申请人： Seiji Ono ,  Kenmei Masuda ,  Hidekazu Takeda ,  Atsushi Inoue ,  Nobuo Masuoka ,  Noboru Katohno ,  Makoto Ibe ,  Kuniaki Hirayama ,  Kiyokazu Watanabe

发明人： Seiji Ono ,  Kenmei Masuda ,  Hidekazu Takeda ,  Atsushi Inoue ,  Nobuo Masuoka ,  Noboru Katohno ,  Makoto Ibe ,  Kuniaki Hirayama ,  Kiyokazu Watanabe

IPC分类号： G11B15/61

CPC分类号： G11B15/61

摘要： In a rotary head drum of a recording/reproduction apparatus, for smoothly holding a magnetic tape over a guide step provided on a lower drum to guide the magnetic tape, part of a chamfer formed in the guide step is formed as a large chamfer in which a chamfered amount is larger than that of the remaining part of the chamfer. With the provision of the large chamfer, even if the lower edge of the magnetic tape deviates from the guide step when the tape is wound over or unwound from the drum, damages of the magnetic tape can be prevented. Therefore, the position and attitude control of tape withdrawing members can be greatly simplified and the magnetic tape can always run stably while being restricted in its position by the guide step. In the process of machining a tape running surface on the drum, by increasing the feed distance of a blade in the part of the chamfer where the large chamfer is to be formed by chamfering the guide step with a large chamfered amount, in comparison with the feed distance set in the remaining part of the chamfer, the large chamfer and the small chamfer can be both machined at the same time, resulting in simplified machining steps.

摘要翻译： 在记录/再现装置的旋转磁头鼓中，为了平滑地将磁带保持在设置在下磁鼓上的引导台上以引导磁带，形成在引导步骤中的倒角的一部分形成为大倒角，其中 倒角量大于倒角剩余部分的倒角量。 通过设置大倒角，即使当磁带从磁鼓卷绕或退绕时磁带的下边缘偏离引导步骤，也可以防止磁带的损坏。 因此，能够极大地简化卷取装置的位置和姿势控制，并且通过引导步骤限制在其位置，磁带总是可以稳定地运行。 在加工滚筒上的带子运行表面的过程中，通过在倒角部分中增加叶片的进给距离，通过以较大的倒角量倒角引导台阶，形成大倒角的部分，与 在倒角的剩余部分设置的进给距离，大倒角和小倒角可以同时加工，从而简化了加工步骤。

公开(公告)号：US4912578A

公开(公告)日：1990-03-27

申请号：US177470

申请日：1988-04-01

申请人： Noboru Katohno ,  Koji Fukuda

发明人： Noboru Katohno ,  Koji Fukuda

IPC分类号： G11B15/665

CPC分类号： G11B15/6656

摘要： In a tape loading mechanism for recording and/or playback equipment in which a magnetic tape is drawn from a cassette to be wound around a cylinder having a head at a predetermined angle, an elongated member for moving drawing members to draw the magnetic tape from the cassette is disposed and extends in a space between a rotating shaft of a cylinder motor for rotating the cylinder identical with a rotational shaft of the cylinder motor and a capstan motor for rotating a capstan shaft identical with the capstan shaft which feeds the magnetic tape together with a pinch roller.

摘要翻译： 在用于记录和/或重放设备的磁带加载机构中，其中磁带从要被卷绕在具有头部的预定角度的圆柱体上的磁带被拉出，用于移动拉伸部件以从 磁带盒被设置并且在气缸电动机的旋转轴之间的空间中延伸，用于旋转与气缸电动机的旋转轴相同的气缸和主导轴电动机，用于使与主轴轴相同的主导轴转动，主轴轴与馈送磁带一起 一个压紧辊。