公开(公告)号：US4747004A

公开(公告)日：1988-05-24

申请号：US849146

申请日：1986-04-07

申请人： Jagmohan S. Kukreja ,  John C. Van Valkenburgh ,  Kurt A. Buckland

发明人： Jagmohan S. Kukreja ,  John C. Van Valkenburgh ,  Kurt A. Buckland

IPC分类号： G11B5/55 ,  G11B5/56

CPC分类号： G11B5/55 ,  G11B5/56

摘要： A magnetic read/write head is mounted on a carriage having a semi-circular recess therein. A threaded lead screw is partially surrounded by the recess. A partial nut having an arcuate front surface with two male thread segments thereon engages the lead screw. The partial nut is supported on the carriage so that rotation of the screw causes movement of the carriage relative to the screw, in a direction parallel to the longitudinal axis of the screw. The partial nut is biased into engagement with the screw by a coil spring which extends between the partial nut and a cap which is spaced from the rear surface of the partial nut. The spring applies a constant, predetermined force on the partial nut. The direction of the spring force is substantially parallel to the longitudinal axis of the spring. Thus, the head can be precisely positioned by the rotation of the lead screw. Also disclosed is a method of positioning the magnetic head.

摘要翻译： 磁读/写头安装在其中具有半圆形凹槽的托架上。 螺纹导螺杆被凹部部分地包围。 具有弓形前表面的具有两个外螺纹段的部分螺母与导螺杆啮合。 部分螺母被支撑在滑架上，使得螺杆的旋转引起滑架相对于螺钉在平行于螺杆的纵向轴线的方向上的移动。 部分螺母通过螺旋弹簧偏置成与螺钉接合，该螺旋弹簧在部分螺母和与该部分螺母的后表面间隔开的盖子之间延伸。 弹簧在局部螺母上施加恒定的预定力。 弹簧力的方向基本上平行于弹簧的纵向轴线。 因此，可以通过导螺杆的旋转来精确地定位头部。 还公开了一种定位磁头的方法。