| 摘要 |
PURPOSE:To adjust the attachment height of a magnetic head with high precision by a simple procedure and to improve the precision of the relative height between a magnetic disk and the magnetic head by providing a stopper which is settable at an optional position. CONSTITUTION:The magnetic head 2 is fitted to a support 4 through a head arm 3, and the support 4 oscillates around a fixed shaft 6 to position the magnetic head 2. The support 4 is supported on the fixed shaft 6 through two bearings 5a and 5b, and when the internal ring in the lower bearing 5b is energized axially by a pressurized spring 7, the whole of the support 4 moves up to press the internal ring in the upper bearing 5a against a bush 9 fitted in the fixed shaft 6. The fixed shaft 6 is thread-cut partially to form a bolt part 12, where a nut 11 is engaged. The bush 9 is slidable axially until the nut 11 as a stopper and the nut 11 is rotated to vary the axial fixation position of the bush 9 optionally, so the support 4, i.e. magnetic head 2 is positioned optionally in the height direction. |
