Claims
- 1. A disk drive apparatus, comprising:
- a housing;
- a disk for storing data;
- an actuator arm assembly having a transducer mounted thereon for writing and reading data to and from said disk;
- a mounting device attached to said housing;
- rocker means provided on said actuator arm assembly for engaging said mounting device with a rolling contact motion;
- a resilient bias device engaging said actuator arm assembly and said mounting device, for biasing said rocker means into engagement with said mounting device; and
- constraining means, connected between said rocker means and said mounting device, for constraining all motion between said rocker means and said mounting device other than said rolling contact motion.
- 2. A disk drive apparatus according to claim 1, wherein said constraining means is a flexure plate attached to said mounting device and to said actuator arm assembly.
- 3. A disk drive apparatus according to claim 2, further including a flexible cable providing external electrical connection to said transducer, said flexible cable being located adjacent said flexure.
- 4. A disk drive apparatus according to claim 1, wherein said constraining means comprises a plurality of gear teeth formed on said rocker means and on said mounting device and interlocking with each other.
- 5. A disk drive apparatus according to claim 1, wherein said constraining means comprises a knife edge formed on one of said rocker means and said mounting device and a groove formed in the other of said rocker means and said mounting device, said knife edge engaging said groove during said rolling contact motion.
- 6. A disk drive including an actuator arm assembly and a mounting device on which said arm assembly is pivotally mounted for movement about a pivot axis;
- said arm assembly having at least one rocker member with an abutment surface;
- said mounting device comprising a pillar member extending along said pivot axis and having a fixed abutment surface;
- said arm assembly being mounted on said mounting device with said rocker member abutment surface abutting said fixed abutment surface in rolling engagement with said fixed abutment surface; and
- a resilient bias device engaging said actuator arm assembly and said mounting device to urge said rocker member abutment surface into contact with said fixed abutment surface, and a flexible restraining member secured both to said mounting device and to said arm assembly to prevent slip of said rocker member with respect to said pillar member while permitting pivotal movement of said actuator arm about said pivot axis.
- 7. A disk drive according to claim 6 in which said rocker member comprises two abutment surfaces spaced apart from each other in a direction along said pivot axis.
- 8. A disk drive according to claim 7 in which each of said two abutment surfaces comprises a flat abutment surface and said fixed abutment surface comprises a cylindrical surface wherein each flat abutment surface abuts said cylindrical surface along a line parallel to said pivot axis.
- 9. A disk drive according to claim 6 in which said flexible restraining member comprises a flexure plate secured at opposite edges thereof to said mounting device and to said arm assembly respectively.
- 10. A disk drive according to claim 9 in which said rocker member comprises two abutment surfaces spaced apart from each other in a direction along said pivot axis and said flexure plate is located between said two abutment surfaces.
- 11. A disk drive including an actuator arm assembly and a mounting device, said arm assembly being pivotally mounted on the mounting device for movement about a pivot axis and extending in a first direction away from the pivot axis and perpendicular to the pivot axis;
- said arm assembly having at least one rocker member with an abutment surface facing in a second direction transverse to said pivot axis;
- said mounting device comprising a pillar member extending along said pivot axis and having a fixed abutment surface facing said rocker member abutment surface;
- said arm assembly being mounted on said mounting device with said rocker member abutment surface abutting said fixed abutment surface in rolling engagement with said fixed abutment surface; and
- a resilient bias device engaging said actuator arm assembly and said mounting device to urge said rocker member abutment surface into contact with said fixed abutment surface, and a flexible restraining member secured both to said mounting device and to said arm assembly to prevent slip of said rocker member with respect to said pillar member while permitting pivotal movement of said actuator arm about said pivot axis.
- 12. A disk drive according to claim 11 in which the flexible restraining member comprises a flexure plate in a plane parallel to the pivot axis and parallel to said first direction.
- 13. A disk drive including an actuator arm assembly and a mounting device, said arm assembly being pivotally mounted on the mounting device for movement about a pivot axis and extending in a first direction away from the pivot axis and perpendicular to the pivot axis;
- said arm assembly having a read/write transducer mounted thereon and at least one rocker member with an abutment surface facing in a second direction transverse to said pivot axis;
- said mounting device comprising a pillar member extending along said pivot axis and having a fixed abutment surface facing said rocker member abutment surface;
- said arm assembly being mounted on said mounting device with said rocker member abutment surface abutting said fixed abutment surface in rolling engagement with said fixed abutment surface; and
- a resilient bias device engaging said actuator arm assembly and said mounting device to urge said rocker member abutment surface into contact with said fixed abutment surface, and a flexure plate secured at opposite edges thereof to said mounting device and to said arm assembly respectively to prevent movement between said arm assembly and said mounting device other than pivotal movement of said actuator arm about said pivot axis.
Parent Case Info
This is a continuation of application Ser. No. 08/383,697, filed Feb. 1, 1995, now abandoned which is a continuation of application Ser. No. 08/110,710, filed Aug. 23, 1993 now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1342495 |
Jan 1974 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Heath JS Design of a Swinging Arm Actuator for a Disk File. IBM J Res and Dev. Jul. 1976. |
Continuations (2)
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Number |
Date |
Country |
Parent |
383697 |
Feb 1995 |
|
Parent |
110710 |
Aug 1993 |
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