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1. 发明授权

US5452169A Variable bulge device for rotatable head drum 失效
标题翻译：可旋转头鼓的可变凸起装置
公开(公告)号：US5452169A
公开(公告)日：1995-09-19
申请号：US213842
申请日：1994-03-14
申请人： Joong K. Joh , Soo K. Kim , Mun C. Joung , Ho W. Lee , Yoon S. Seoh , Seung I. Kim , Hyun K. Park , Kwan B. Sim , Weon K. Lee
发明人： Joong K. Joh , Soo K. Kim , Mun C. Joung , Ho W. Lee , Yoon S. Seoh , Seung I. Kim , Hyun K. Park , Kwan B. Sim , Weon K. Lee
IPC分类号： G11B15/61 , G11B15/665 , G11B15/60
CPC分类号： G11B15/61 , G11B15/665
摘要： A variable bulge device for displacing bulges of a rotation head drum, capable of adjusting a protruded amount of a bulge used, depending on a rotation speed of the rotating head drum and the kind of a tape used. The device includes an operating member partially protruded at one end thereof through a bulge hole formed at a lower drum of the rotation head drum, the operating member having a variable bulge provided by the protruded end, and a drive unit for driving the operating member and thereby adjusting the protruded amount and position of the variable bulge. For adjusting a protruded amount of a bulge used, depending on a rotation speed of the rotating head drum and the kind of a tape used, the device includes a hollow elastic rubber film partially protruded at an upper end thereof through a bulge hole formed at a lower drum of the rotation head drum, the elastic rubber film having a variable bulge provided by the protruded end, an operating fluid contained in the elastic rubber film, an operating fluid expanding unit adapted to expand the operating fluid and thereby adjust the protruded amount of the variable bulge.
摘要翻译：用于移动旋转磁头鼓的凸起的可变凸起装置，其能够根据旋转磁头鼓的旋转速度和使用的带的种类调节所使用的凸起的突出量。该装置包括操作构件，其一端通过形成在旋转磁头鼓的下鼓轮处的凸起孔部分地突出，操作构件具有由突出端设置的可变凸起，以及用于驱动操作构件的驱动单元和从而调整可变凸起的突出量和位置。为了调整所使用的凸起的突出量，根据旋转磁头鼓的旋转速度和使用的带的种类，该装置包括中空弹性橡胶膜，该中空弹性橡胶膜在其上端部分地通过形成在所述旋转头鼓的下鼓，所述弹性橡胶膜具有由所述突出端提供的可变凸起，所述弹性橡胶膜中包含的工作流体，适于膨胀所述工作流体的工作流体扩张单元，从而调节所述弹性橡胶膜的突出量可变凸起。

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