Disk apparatus and dual actuator assembly having a wiring board with a bent connection portion

#This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2018-051513, filed on Mar. 19, 2018, the entire contents of which are incorporated herein by reference.

#Embodiments described herein relate generally to a disk apparatus having actuator assemblies and a dual actuator assembly.

#In general, a disk apparatus such as a hard disk drive (HDD) includes: magnetic disks within a casing, a spindle motor that supports the magnetic disks and rotates the magnetic disks, an actuator assembly that supports magnetic heads, a voice coil motor that drives this actuator assembly, a flexible printed circuit board unit for controlling these components, and the like.

#FIG. 1 is an exploded perspective view illustrating a hard disk drive (HDD) according to a first embodiment with a top cover disassembled.

#FIG. 2 is a perspective view illustrating actuator assemblies and a board unit of the HDD.

#FIG. 3 is a perspective view of the actuator assemblies in an aligned state.

#An embodiment provides a disk apparatus capable of providing a plurality of actuator assemblies without reducing a memory capacity.

#In general, according to one embodiment, a disk apparatus includes a plurality of recording disks; and a first and a second actuator assembly that rotate about a support shaft and that each include: a rotatable actuator block; a wiring board having a plurality of connection terminals and installed on an installation surface of the actuator block; and a plurality of head gimbal assemblies each attached to the actuator block via an arm and each including a head that reads or writes information from or to a corresponding recording disk of the recording disks, and an interconnection member having a tip end portion connected to the head and a connection end portion connected to a corresponding connection terminal of the connection terminals.

#The wiring board of each of the first and the second actuator assembly has a connection portion connected to one of the connection terminals and located adjacently to a boundary between the actuator blocks of the first and the second actuator assembly, and either the connection portion of the first actuator assembly or the connection portion of the second actuator assembly is bent with respect to the installation surface