Patent ID: 9086125
Filing Date: 2015-07-21
Classification: B64C,F16H,Y10T

Abstract:
1. An actuator system comprising: a controlled element configured for rotary movement about a first axis relative to a reference structure; a linkage system connected to said element and said reference structure; a first actuator configured and arranged to power a first degree of freedom of said linkage system; a second actuator configured and arranged to power a second degree of freedom of said linkage system, said first degree of freedom and said second degree of freedom being independent degrees of freedom; said linkage system having a first link configured for rotary movement about a second axis relative to said reference structure; said first axis and said second axis not being coincident; said linkage system having a second link configured for rotary movement about a third axis relative to said reference structure; said first link and said second link coupled such that rotation of said first link about said second axis in a first direction causes rotation of said second link about said third axis in a second direction; said linkage system configured and arranged such that a first angle of rotation between said element and said reference structure may be driven independently of a second angle of rotation between said first link and said reference structure; wherein one of said first or second actuators is configured and arranged to drive rotation of said element about said first axis when said other of said first or second actuator is operatively locked.