Co-located microactuator lever assembly
A suspension comprises a load beam having a leading portion and a trailing portion, a gimbal sheet mounted to the leading portion and forming a first pad, a second pad, and a displacement lever assembly including at least a first lever arm having a first end adjacent and connected to the first pad and a second end opposite the first end and connected to the second pad. The displacement lever assembly is configured to translate a linear displacement of the first pad to a differing displacement of the second pad. The suspension comprises a piezoelectric element attached to the first pad and extending across the second pad.
1. A suspension comprising:
a load beam having a leading portion and a trailing portion;
a gimbal mounted to the leading portion of the load beam, and having a fixed section and a rotor section connected together by a displacement lever assembly, said rotor section having a first pad and said rotor section having a second pad, wherein the displacement lever assembly is configured to translate a linear displacement of the first pad to a differing displacement of the second pad; and
a piezoelectric element attached to the first pad and extending across the second pad,
wherein the displacement lever assembly includes a lever arm and is configured such that with linear displacement of the first pad, a first end of the lever arm experiences a displacement that is different from a displacement of a second end of the lever arm,
further wherein the first pad, the second pad, and the lever arm are movably connected to the fixed section,
wherein the first end of the lever arm is connected to the fixed section, and the second pad defines a plurality of sides, the displacement lever assembly further comprising:
a first leg extending from the second end of the lever arm to a first side of the second pad; and
a second leg extending from a second side of the second pad to the fixed section.
2. The suspension of claim 1 , wherein each of the legs forms at least one angular bend.
3. The suspension of claim 1 , wherein the displacement lever assembly further comprises:
a third leg extending from a third side of the second pad to the fixed section; and
a fourth leg extending from a fourth side of the second pad to the fixed section.
4. The suspension of claim 1 , wherein a first end section of the piezoelectric element is attached to the first pad and a second end section of the piezoelectric element is attached to the load arm.
5. The suspension of claim 1 , wherein the displacement lever assembly is configured such that the differing displacement includes at least one of a different displacement magnitude and a different displacement direction.
6. The suspension of claim 1 , wherein the displacement lever assembly further includes a third pad rigidly affixed to the fixed section, with the second pad being positioned between the first and third pads, and further wherein the piezoelectric element is attached to the third pad.