公开(公告)号：US5930070A

公开(公告)日：1999-07-27

申请号：US881101

申请日：1997-06-24

申请人： Kazunori Tanabe ,  Shoji Kawahara ,  Kenji Sasaki ,  Ichiro Senda ,  Kouzou Taba ,  Masayuki Akieda

发明人： Kazunori Tanabe ,  Shoji Kawahara ,  Kenji Sasaki ,  Ichiro Senda ,  Kouzou Taba ,  Masayuki Akieda

IPC分类号： G11B15/43 ,  G11B15/665 ,  G11B5/027

CPC分类号： G11B15/43 ,  G11B15/6656

摘要： A magnetic recording and reproducing system including a reel base for supplying or taking up a tapelike magnetic recording medium, and a tension band for braking the reel base, which is wound around the reel base through a predetermined angle. First and second retainers are provided for holding opposite ends of the tension band, respectively. The first and second retainers are pivotally attached to a pivotal tension arm. The tension arm has a tension post so that the magnetic recording medium is brought into sliding contact with the tension post. An urging member is provided for adjusting the tension of the magnetic recording medium to a desired value. The system also includes a control member which has a contact portion capable of being brought into contact with a guide portion of the second retainer. Also, a guide member is provided for guiding the control member to first and second positions where the contact portion of the control member is brought into and out of contact with the guide portion of the second retainer, respectively.

摘要翻译： 一种磁记录和再现系统，包括用于提供或卷取带状磁记录介质的卷轴基座，以及用于制动卷轴基座的张力带，其绕卷轴基部卷绕预定角度。 第一和第二保持器分别设置用于保持张力带的相对端。 第一和第二保持器枢转地附接到枢转张力臂。 张力臂具有张紧柱，使得磁记录介质与张紧柱滑动接触。 提供了用于将磁记录介质的张力调节到期望值的施力构件。 该系统还包括具有能够与第二保持器的引导部分接触的接触部分的控制构件。 此外，设置引导构件，用于将控制构件引导到第一和第二位置，其中控制构件的接触部分分别与第二保持器的引导部分接触并脱离接触。

公开(公告)号：US5907451A

公开(公告)日：1999-05-25

申请号：US938352

申请日：1997-09-29

申请人： Masayuki Akieda

发明人： Masayuki Akieda

IPC分类号： G11B15/675 ,  G11B5/008

CPC分类号： G11B15/675

摘要： A magnetic recording and reproducing device according to the present invention is designed such that when a holding, moving and driving unit is pivoted for recording or reproducing operation which is of frequent occurrence, a pivot shaft of metal which drives for rotation the holding, moving and driving unit is rotated by being supported by and in friction contact with a bearing which is formed of a portion of a base of metal for the sake of driving for pivotal movement, thereby reducing changes with time to members which changes are produced by forces on the pivot shaft which forces, in turn, are caused by reaction forces from the cassette.

摘要翻译： 根据本发明的磁记录和再现装置被设计成使得当保持，移动和驱动单元枢转用于经常发生的记录或再现操作时，金属的枢轴驱动旋转保持，移动和 驱动单元通过由与金属基部的一部分形成的轴承支撑并与其摩擦接触而旋转，以便驱动以进行枢转运动，从而随着时间的推移而减少对构件产生的变化的变化， 这个转轴又是由来自盒式磁带的反作用力造成的。