Disk drive

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 a first abutment facing in a second direction transverse to both said first direction and said pivot axis,
• said mounting device comprising a pillar member extending along said pivot axis and having at least one second abutment facing said rocker member abutment,
• said first and second abutments forming a pair of abutments one of which is curved,
• said arm assembly being mounted on said mounting device with said first abutment abutting said second abutment along a line parallel to said pivot axis and in rolling engagement with said second abutment,
• and said disk drive further comprising a resilient bias device that has a first arm in contact with the radiused surface of the mounting device and a second arm in contact with the radiused surface of the actuator arm assembly acting to form a clasp which exerts force to urge said first abutment into contact with said second abutment, and a flexible restraining member secured both to said mounting device and to said arm assembly to prevent movement of said rocker member in a direction perpendicular to said pivot axis while permitting pivotal movement of said actuator arm assembly about said pivot axis, at least one of said abutments being mounted on a movable mounting to prevent sliding movement between said first and second abutments during flexing of said restraining member.

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 a first abutment facing in a second direction transverse to both said first direction and to said pivot axis,
• said mounting device comprising a pillar member extending along said pivot axis and having a second abutment facing said first abutment,
• said first and second abutments forming a pair of abutments one of which is curved,
• said arm assembly being mounted on said mounting device with said first abutment abutting said second abutment along said pivot axis and in rolling engagement with said second abutment,
• said disk drive further comprising a resilient bias device acting between said mounting device that has a first arm in contact with the radiused surface of the mounting device and a second arm in contact with the radiused surface of the actuator arm assembly acting to form a clasp which exerts force to urge said first abutment into contact with said second abutment, and a flexure plate secured along opposite edges 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 assembly about said pivot axis, at least one of said abutments being mounted on a movable mounting to prevent sliding movement between said first and second abutments during flexing of said flexure plate.

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 a first abutment,
• said mounting device comprising a pillar member extending along said pivot axis and having a second abutment,
• said first and second abutments forming a pair of abutments at least one of which is curved,
• said arm assembly being mounted on said mounting device with said first abutment abutting said second abutment along said pivot axis and in rolling engagement with said second abutment,
• said disk drive further comprising a deformable flexure secured both to said mounting device and to said arm assembly to prevent movement of said rocker member in a direction perpendicular to said pivot axis while deforming to permit pivotal movement of said actuator arm assembly about said pivot axis, and a resilient bias device that has a first arm in contact with the radiused surface of the mounting device and a second arm in contact with the radiused surface of the actuator arm assembly acting to form a clasp which exerts force to urge said first abutment into contact with said second abutment, said bias device applying said force through a point of contact between said first and second abutments when the flexure is not deformed but offsetting the force from the point of contact when the flexure is deformed so as to oppose force of the flexure tending to return to the undeformed condition.

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 assembly having at least one rocker member with a first abutment facing in a second direction transverse to both said first direction and said pivot axis, said mounting device comprising a pillar member extending along said pivot axis and having at least one second abutment facing said rocker member abutment,
• said first and second abutments forming a pair of abutments one of which is curved,
• said arm assembly being mounted on said mounting device with said first abutment abutting said second abutment along a line parallel to said pivot axis and in rolling engagement with said second abutment,
• said disk drive further comprising, a deformable flexure secured both to said mounting device and to said arm assembly to prevent movement of said rocker member in a direction perpendicular to said pivot axis while deforming to permit pivotal movement of said actuator arm assembly about said pivot axis, and a resilient bias device that has a first arm in contact with the radiused surface of the mounting device and a second arm in contact with the radiused surface of the actuator arm assembly acting to form a clasp which exerts force to urge said first abutment into contact with said second abutment, said bias device applying said force through a point of contact between said first and second abutments when the flexure is not deformed but offsetting the force from the point of contact when the flexure is deformed so as to oppose force of the flexure tending to return to the undeformed condition.

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 a first abutment facing in a second direction transverse to both said first direction and to said pivot axis,
• said mounting device comprising a pillar member extending along said pivot axis and having a second abutment facing said first abutment
• said first and second abutments forming a pair of abutments one of which is curved,
• said arm assembly being mounted on said mounting device with said first abutment abutting said second abutment along said pivot axis and in rolling engagement with said second abutment, said disk drive further comprising a deformable flexure plate secured along opposite edges 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 assembly about the pivot axis, and a resilient bias device that has a first arm in contact with the radiused surface of the mounting device and a second arm in contact with the radiused surface of the actuator arm assembly acting to form a clasp which exerts force to urge said first abutment into contact with said second abutment, said bias device applying said force through a point of contact between said first and second abutments when the flexure plate is not deformed but offsetting the force from the point of contact when the flexure plate is deformed so as to oppose force of the flexure plate tending to return to the undeformed condition.