Speed governing and decoupling drive mechanism

Details Speed governing and decoupling drive mechanism Speed governing and decoupling drive mechanism

F - Mech Eng,Light,Heat,Weapons

03

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121/120

F03G 1/08 (2006.01) A62C 2/24 (2006.01) F03G 1/06 (2006.01) F16D 59/00 (2006.01) F16D 67/00 (2006.01) F16D 67/02 (2006.01)

Patent

CA 1247477

ABSTRACT OF THE DISCLOSURE A decoupling and speed governing mechanism is disclosed for a spring returned drive train driven by a stepper motor. A pinion assembly in the drive train is rotatably coupled to a rotor in the motor by dogs on the assembly which engage spokes in the rotor when the assembly is in a first position along the axis of the rotor. The pinion assembly also includes weighted shoes which move outwardly when the assembly rotates at greater than a predetermined speed to frictionally engage an internal drum surface in the rotor to govern the drive train speed when the assembly is in a second axial position relative to the rotor.

479080

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