Damping material for a head suspension of a magnetic head
AssigneeNitto Denko Corporation
InventorsMasao Nakamura, Hiroyuki Iida, Motoshige Tatsumi, Hidetsugu Toyota
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Abstract
The damping material is mounted over the flat part to the curved part of a supporting arm of a head supporting spring of a disk unit composed of a magnetic head, the head suspension which supports the former and a fixing block that fixes the suspension, and the rate of change in static spring constant of the head supporting spring mounted with the damping material is set within 20% in comparison with the static spring constant of the un-mounted head supporting spring. As the constraining body, a metal foil or a resin film is used.
Claims3
A head suspension for supporting a magnetic head of a disk unit, comprising:
- a head supporting spring for supporting the magnetic head, the head supporting spring having a flat part and a curved part;
- and
- a damping material mounted over the flat part to the curved part of the head supporting spring;
- wherein a rate of change in a static spring constant of the head supporting spring mounted with the damping material is within 20% in comparison with the static spring constant of the un-mounted head supporting spring, and
- further wherein the damping material is a laminate including a constraining body having a rigidity of 100 kg/mm or less, and a visco-elastic body made of an acrylic adhesive laminated on the constraining body.
Dependencies are inferred from the claim text.