IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0828103
(2010-06-30)
|
등록번호 |
US-8416534
(2013-04-09)
|
발명자
/ 주소 |
- Heo, Baekho
- Watson, Scott E.
- Schmidt, Ryan J.
|
출원인 / 주소 |
- Western Digital Technologies, Inc.
|
인용정보 |
피인용 횟수 :
48 인용 특허 :
16 |
초록
▼
Described herein is a tolerance ring for a disk drive that includes a substantially cylindrical body having outer surface. The tolerance ring can be positioned between a rotational bearing and an actuator for providing rotational movement of the actuator. The tolerance ring can also include a contac
Described herein is a tolerance ring for a disk drive that includes a substantially cylindrical body having outer surface. The tolerance ring can be positioned between a rotational bearing and an actuator for providing rotational movement of the actuator. The tolerance ring can also include a contact member, positioned along the outer surface, that protrudes outward from the outer surface. The contact member can be connected to the outer surface by first and second angulated arms that extend from the outer surface to the contact member at different angles relative to the outer surface.
대표청구항
▼
1. A disk drive comprising: an actuator assembly having a rotation axis and being configured to rotate about the axis;a bearing configured to provide rotational movement of the actuator assembly about the axis; anda substantially cylindrical tolerance ring having an internal wall and an external wal
1. A disk drive comprising: an actuator assembly having a rotation axis and being configured to rotate about the axis;a bearing configured to provide rotational movement of the actuator assembly about the axis; anda substantially cylindrical tolerance ring having an internal wall and an external wall, the tolerance ring being configured to engage the bearing along the internal wall and having a contact member, for engaging the actuator assembly, along the external wall, the contact member comprising a contact surface protruding outward from the external wall, the contact surface being connected to the external wall by two angulated walls extending on opposing ends of the contact surface, wherein the two angulated walls extend from the external wall to the contact surface at different angles, and wherein the contact surface extends in a direction that is substantially parallel to the external wall. 2. The disk drive of claim 1, wherein the tolerance ring comprises a bottom edge and a top edge, and the contact member is positioned along the external wall closer to one of the bottom edge and the top edge. 3. The disk drive of claim 2, wherein a first angulated wall of the two angulated walls is positioned closer to the one of the bottom edge and the top edge than a second angulated wall of the two angulated walls. 4. The disk drive of claim 3, wherein the first angulated wall extends from the external wall at a greater angle than the second angulated wall. 5. The disk drive of claim 4, wherein the first angulated wall extends from the external wall at an angle of from about 15° to about 45°. 6. The disk drive of claim 4, wherein the second angulated wall extends from the external wall at an angle of from about 5° to about 35°. 7. The disk drive of claim 1, wherein the tolerance ring comprises a plurality of contact members. 8. The disk drive of claim 7, wherein the plurality of contact members are positioned circumferentially about the substantially cylindrical tolerance ring. 9. The disk drive of claim 7, wherein the plurality of contact members define an annular contact region about the external wall of the tolerance ring. 10. The disk drive of claim 7, wherein the cylindrical ring defines a ring axis, and the plurality of contact members are positioned at different locations along the ring axis. 11. The disk drive of claim 1, wherein the bearing comprises a ball bearing, and the contact member is positioned adjacent the ball bearing when the tolerance ring is positioned between and engages the bearing and the actuator assembly. 12. A tolerance ring for a disk drive, the tolerance ring comprising: a substantially cylindrical body having an internal wall and an external wall, the tolerance ring being configured to be positioned about, and to engage along the internal wall, a rotational bearing, the cylindrical body defining an axis; anda contact member positioned along the external wall, the contact member comprising a contact surface protruding outward from the external wall such that the contact surface is spaced at a greater radial distance from the axis than the external wall, the contact surface being connected to the external wall by a first angulated arm and a second angulated arm;wherein the first and second angulated arms extend from the external wall to the contact surface at different angles, and wherein the contact surface extends in a direction that is substantially parallel to the external wall. 13. The tolerance ring of claim 12, wherein the first angulated arm is positioned closer to one of a bottom edge of the ring and a top edge of the ring than the second angulated arm, and the first angulated arm extends from the external wall at a greater angle than the second angulated arm. 14. The tolerance ring of claim 13, wherein the first angulated arm extends from the external wall at an angle of from about 15° to about 45°. 15. The tolerance ring of claim 13, wherein the second angulated arm extends from the external wall at an angle of from about 5° to about 35°. 16. The tolerance ring of claim 12, wherein the tolerance ring comprises a plurality of contact members. 17. The tolerance ring of claim 16, wherein the plurality of contact members are positioned circumferentially about the substantially cylindrical body. 18. The tolerance ring of claim 16, wherein the plurality of contact members are positioned at different locations along the axis. 19. The tolerance ring of claim 16, wherein the plurality of contact members form two annular contact regions about the ring, the two contact regions being spaced along the axis.
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