| 摘要 |
PURPOSE:To increase flexural rigidity and torsional rigidity with relatively lightweight constitution, improve the dynamic characteristics of a floating head supporting device, and obtain extremely excellent dynamic characteristics to mechanical oscillation by laminating thin plates into stack leaf spring structure and thus constituting the load spring part of the floating head supporting device. CONSTITUTION:A load spring 2a becomes wider at its root part, and a load spring reinforcing plate 2P is coupled with the load spring 2a; and a load spring reinforcing plate 2Q is further coupled with the plate 2P, a load spring reinforcing plate 2R is coupled with the plate 2Q, and the plate thickness of the load spring increases stepwise toward the root part. Thus, the plate thickness is small at the tip part and large at the root part, so no increase in the constraint on a gimbals spring 2b due to an increase in rigidity is caused to impede the free motion of the gimbals spring 2b and the rigidity increases as it extends toward the root part by several times as large as when only the load spring 2a is present and obtains on extremely excellent dynamic characteristics having an extremely high natural oscillation frequency at the load spring part. |
