US 8,149,544 B2 · Hard disk drive with recessed actuator joint

Abstract

Components and assemblies for a hard disk drive (HDD) with a recessed actuator joint are described. A rotary actuator hub assembly comprises a shaft having a flange, and a pivot seat on which the flange is seated when the shaft is fastened to an HDD chassis. According to an embodiment, the pivot seat has at least one “contact-reducing feature” recessed from the surface of the pivot seat at which the seat contacts the flange. A purpose of the contact-reducing feature(s) of the pivot seat is to weaken the joint between the actuator hub assembly and the chassis, thereby mechanically loosening the rotary actuator assembly from the chassis. Consequently, movements to and vibrations from the chassis are less likely to be transmitted to the rotary actuator assembly and, ultimately, to the HDD read/write head(s).

Claims18

Dependent claims

A hard disk drive rotary actuator hub assembly, comprising:

a shaft, comprising a flange;
a pivot seat on which said flange is seated, said pivot seat comprising at least one contact-reducing feature recessed from a surface of said pivot seat at which said flange and said pivot seat contact when coupled, said at least one contact-reducing feature comprises an annular groove;
and
a fastener coupling said shaft to a hard disk drive chassis through said pivot seat.

1 more element

Dependencies are inferred from the claim text.

Hard disk drive with recessed actuator joint

Life of this patent

Hard disk drive with recessed actuator joint

Life of this patent

Abstract

Claims18