| 摘要 |
PURPOSE:To suppress the undesired vibration factors, by using a plate having a spring action in the driving direction of a mobile casing to a support mechanism of the casing of a head. CONSTITUTION:A mobile casing 12 is supported by a spring plate 13 at both sides of an outer casing 11. A spring 13 is fixed to the casings 11 and 12 by holder screws 16 via holder plates 17. The casing 12 is horizontally driven by a driving part. The rigidities of a support mechanism in the vertical direction can be increased, and accordingly the vibraton of the casing 12 can be suppressed only in the horizontal direction. It is also effective to fix the spring 13 with an adhesive into the grooves formed to the right and left casings 11 and 12 by means of a sheet of plate spring 13. |
