Spring actuator with rollers

Details Spring actuator with rollers Spring actuator with rollers

1989-11-13

1991-07-02

Braun, Leslie A.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

744248R, 92 2, 92 31, F01B 904

Patent

active

050276670

ABSTRACT:
An actuator having a body with interior helical grooves, an output shaft with exterior helical grooves, a set of rollers in rolling engagement with the body and output shaft grooves, and a piston sleeve axially movable within the body and retaining the rollers in a fixed axial and circumferential position relative to the piston sleeve during operation of the actuator. A spring is positioned within the body to one axial side of the piston sleeve to apply a linear force thereto. The actuator converts a linear force on the piston sleeve into a rotational force on the output shaft, and vice versa.

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