| 摘要 |
A linear actuator mechanism which comprises skewed roller members arranged about a drive shaft and translates rotation of the drive shaft to linear displacement along the shaft includes a pair of body members having a ball joint between them which serves as a pivot about which adjustable spring compression constrains each of the three normal degrees of freedom in the body member pair to provide a kinematic union which eliminates indiscriminate displacement between the actuator mechanism and the drive shaft.
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