Suspension and disk drive
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsTakuma Muraki, Hiroyasu Tsuchida
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention help to increase yaw stiffness while achieving higher peel stiffness and lower roll stiffness and pitch stiffness in a suspension supporting a head slider. A gimbal according to an aspect of the present invention has a securing point where the gimbal is secured to a load beam in the front and securing points where the gimbal is secured to the load beam in the rear. The gimbal tongue pivots on a dimple contact point. A front ring is secured at the securing point to support the gimbal tongue. The rear ring is secured at the securing points to support the gimbal tongue. The rear ring provides the gimbal tongue with higher yaw stiffness than the front ring. The front ring provides the gimbal tongue with higher peel stiffness than the rear ring.
Claims20
A suspension comprising:
- a load beam;
- and
- a gimbal secured to the load beam for supporting a head slider, comprising:
- a first support area including a first securing point where the gimbal is secured to a front of the load beam;
- a second support area including a second securing point where the gimbal is secured to a rear of the load beam;
- a gimbal tongue having a mount surface on which the head slider is mounted for performing pivoting motion on a dimple contact point;
- a front ring comprising a ring-shaped spring structure joining the first support area for supporting the gimbal tongue and providing the gimbal tongue with peel stiffness;
- and
- a rear ring comprising a second ring-shaped spring structure joining the second support area for supporting the gimbal tongue and providing the gimbal tongue with higher yaw stiffness than the front ring and lower peel stiffness than the front ring.
A disk drive comprising:
- a disk;
- a head slider for accessing the disk;
- and
- an actuator having a suspension for supporting the head slider for moving the head slider above the disk by swinging on a swing shaft;
- wherein the suspension comprises,
- a load beam, and
- a gimbal secured to the load beam for supporting a head slider, comprising:
- a first support area including a first securing point where the gimbal is secured to a front of the load beam;
- a second support area including a second securing point where the gimbal is secured to a rear of the load beam;
- a gimbal tongue having a mount surface on which the head slider is mounted for performing pivoting motion on a dimple contact point;
- a front ring comprising a ring-shaped spring structure joining the first support area for supporting the gimbal tongue and providing the gimbal tongue with peel stiffness;
- and
- a rear ring comprising a second ring-shaped spring structure joining the second support area for supporting the gimbal tongue and providing the gimbal tongue with higher yaw stiffness than the front ring and lower peel stiffness than the front ring.
Dependencies are inferred from the claim text.