Rotary actuator having cantilevered rotational axis
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United States of America Patent
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-
Jul 5, 1994
Grant Date -
N/A
app pub date -
Feb 16, 1993
filing date -
Feb 16, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An actuator having a rotary arm having a read/write head on one side of an axis of rotation and a drive mechanism for defining the axis of rotation, with the drive mechanism being on the side of the axis opposite to the read/write head. The rotary arm has a supported portion and a cantilevered portion. Along the supported portion is an arcuate bearing surface that determines the location of the axis of rotation. The axis is beyond the extent of the supported portion and is spaced apart from any pivot-defining structure. A stepper motor is coupled to the arcuate bearing surface in a manner to frictionally drive the supported portion of the rotary arm. In addition to rotational movement, the arm is mounted for linear movement.
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