Disk apparatus and dual actuator assembly having a wiring board with a bent connection portion
View Patent ↗A disk apparatus includes recording disks and a first and a second actuator assembly that rotate about a support shaft and that each include: an actuator block; a wiring board having connection terminals and installed on an installation surface of the actuator block; and head assemblies each attached to the actuator block via an arm and each including a head and an interconnection member. 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 first and the second actuator assembly, and the connection portion of the first or the second actuator assembly is bent with respect to the installation surface.
1. A disk apparatus comprising:
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,
wherein 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.
2. The disk apparatus according to claim 1 , wherein
the connection portion is bent with respect to the installation surface in a direction of separating from the support shaft.
3. The disk apparatus according to claim 2 , wherein
the connection portion is inclined at an angle θ with respect to the installation surface, and
the angle θ is between 30 and 80 degrees.
4. The disk apparatus according to claim 1 , wherein
the connection portion is bent with respect to the installation surface in a direction of approaching the support shaft.
5. The disk apparatus according to claim 4 , wherein
the installation surface of the actuator block of the first actuator assembly has a first inclined surface inclined in the direction of approaching the support shaft, and
the connection portion of the first actuator assembly is bent in the direction of approaching the support shaft along the first inclined surface.
6. The disk apparatus according to claim 5 , wherein
the installation surface of the actuator block of the second actuator assembly has a second inclined surface inclined in the direction of approaching the support shaft, and
the connection portion of the second actuator assembly is bent in the direction of approaching the support shaft along the second inclined surface.
7. The disk apparatus according to claim 6 , wherein
either or both of the first and the second inclined surface is inclined at an angle θ with respect to the installation surface, and
the angle θ is between 30 and 70 degrees.
8. The disk apparatus according to claim 1 , further comprising
a first and a second voice coil motor that independently drive the first and the second actuator assembly, respectively.
9. The disk apparatus according to claim 8 , wherein
there is a gap between the connection portion of the first actuator assembly and the connection portion of the second actuator assembly that are opposed to each other.
10. The disk apparatus according to claim 1 , wherein
the installation surface of each of the first and the second actuator assembly extends in parallel to the support shaft.
11. A dual actuator assembly for reading or writing information from or to a plurality of recording disks, the dual actuator assembly comprising:
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,
wherein 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.
12. The dual actuator assembly according to claim 11 , wherein
the connection portion is bent with respect to the installation surface in a direction of separating from the support shaft.
13. The dual actuator assembly according to claim 12 , wherein
the connection portion is inclined at an angle θ with respect to the installation surface, and
the angle θ is between 30 and 80 degrees.
14. The dual actuator assembly according to claim 11 , wherein
the connection portion is bent with respect to the installation surface in a direction of approaching the support shaft.
15. The dual actuator assembly according to claim 14 , wherein
the installation surface of the actuator block of the first actuator assembly has a first inclined surface inclined in the direction of approaching the support shaft, and
the connection portion of the first actuator assembly is bent in the direction of approaching the support shaft along the first inclined surface.
16. The dual actuator assembly according to claim 15 , wherein
the installation surface of the actuator block of the second actuator assembly has a second inclined surface inclined in the direction of approaching the support shaft, and
the connection portion of the second actuator assembly is bent in the direction of approaching the support shaft along the second inclined surface.
17. The dual actuator assembly according to claim 16 , wherein
either or both of the first and the second inclined surface is inclined at an angle θ with respect to the installation surface, and
the angle θ is between 30 and 70 degrees.
18. The dual actuator assembly according to claim 11 , further comprising
a first and a second voice coil motor that independently drive the first and the second actuator assembly, respectively.
19. The dual actuator assembly according to claim 18 , wherein
there is a gap between the connection portion of the first actuator assembly and the connection portion of the second actuator assembly that are opposed to each other.
20. The dual actuator assembly according to claim 11 , wherein
the installation surface of each of the first and the second actuator assembly extends in parallel to the support shaft.