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US 5,289,325 AGranted
Rigid disk drive with dynamic head loading apparatus
AssigneeIntegral Peripherals, Inc.
InventorsJames H. Morehouse, David M. Furay, James A. Dunckley
Life of this patent
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Abstract
A rigid disk drive including a rotary actuator having a lift tab extending asymmetrically from the end of the load beam which supports a slider with read/write element is disclosed. The free end of the lift tab cooperates with a cam surface on a cam assembly to provide dynamic loading and unloading of the slider while imparting a roll to the slider as it is loaded to and unloaded from the disk.
Claims14
A rigid disk drive comprising:
- a baseplate;
- a rigid disk supported on said baseplate for
- an elongated actuator arm including a load beam, said actuator arm being pivotally supported about a center of rotation on said baseplate for rotation of one end of said arm load beam in a plane substantially parallel to a surface of said disk, said load beam including at its outermost end a lift tab extending from said one end of said load beam along an axis of which is skewed from the longitudinal axis of said actuator arm;
- a slider body including a read/write recording element;
- means connected to said load beam and said slider body for supporting said slider body at a position intermediate said center of rotation and said lift tab;
- and
- a cam assembly supported on said baseplate adjacent to said lift tab and the edge of said disk, said cam assembly including a cam surface positioned in operative relationship with said lift tab, said lift tab contacting said cam surface and in cooperation with said cam surface providing a lifting force to said load beam.
4 more elements
A rigid disk drive comprising:
- a baseplate;
- a rigid disk supported on said baseplate for rotation;
- an elongated actuator arm pivotally supported about a center of rotation on said baseplate for rotation of a free end of said arm in a plane substantially parallel to a surface of said rigid disk, said actuator arm further including a lift tab extending from said free end of said actuator arm along an axis which is skewed from the longitudinal axis of said actuator arm;
- a slider body including a read/write recording element;
- means connected to said arm and said slider body for supporting said slider body adjacent to said free end of said arm;
- and
- a cam assembly supported on said baseplate adjacent to said lift tab and the edge of said disk, said cam assembly including a cam surface positioned in operative relationship with said lift tab such that said lift tab contacts said cam surface at a position such that a positive roll attitude is imported to said slider body during positioning of said slider body over a surface of said rigid disk, said cam assembly being movable with respect to said center of rotation of said actuator arm whereby the distance between said center of rotation and a contact position between said cam surface and said lift tab is variable to permit adjustment of the amount of roll imparted to said slider body.
4 more elements
A rigid disk drive comprising:
- a baseplate;
- a rigid disk supported on said baseplate for rotation;
- an elongated actuator arm pivotally supported about a center of rotation on said baseplate for rotation of a free end of said arm in a plane substantially parallel to a surface of said rigid disk, said actuator arm further including a lift tab extending from said free end of sad actuator arm along an axis which is skewed from the longitudinal axis of said actuator arm;
- a slider body including a read/write recording element;
- means connected to said arm and said slider body for supporting said slider body adjacent to said free end of said arm;
- and
- a cam assembly supported on said baseplate adjacent to said lift tab and the edge of said disk, said cam assembly including a cam surface positioned in operative relationship with said lift tab such that said lift tab contacts with said cam surface at a position such that a negative roll attitude is imported to said slider body during positioning of said slider body over a surface of said rigid disk, said cam assembly being movable with respect to said center of rotation of said actuator arm whereby the distance between said center of rotation and a contact position between said cam surface and said lift tab is variable to permit adjustment of the amount of roll imparted to said slider body.
4 more elements
A rigid disk drive comprising:
- a baseplate;
- a rigid disk supported on said baseplate for rotation;
- an elongated actuator arm pivotally supported on said baseplate for rotation of a free end of said arm in a plane substantially parallel to a surface of said disk, said actuator arm further including a lift tab extending from said free end of said actuator arm along an axis which is skewed from the longitudinal axis of said actuator arm;
- a slider body including a read/write recording element;
- means connected to said arm and said slider body for supporting said slider body adjacent to said free end of said arm;
- and
- a cam assembly supported on said baseplate adjacent to said lift tab and the edge of said disk, said cam assembly including a cam surface positioned in operative relationship with said lift tb such that the lift tab in cooperation with said cam surface imparts a roll to said slider body when said slider body is being moved into position over the surface of said disk, said cam assembly being movable in a direction radial with respect to said rigid disk to permit adjustment of a loading position of said slider body above said surface of said disk.
4 more elements
Dependencies are inferred from the claim text.