Patent ID: 9016623
Filing Date: 2015-04-28
Classification: B64C,Y10T

Abstract:
1. An apparatus comprising: first and second rotatable subassemblies respectively pivotably coupled to a support structure; a drive linkage which links the first rotatable subassembly to the second rotatable subassembly so that rotation of the first rotatable subassembly drives rotation of the second rotatable subassembly, the drive linkage comprising first and second links, a first joint which pivotably couples the first and second links to each other, and a second joint which pivotably couples the first link to the first rotatable subassembly; an actuator pivotably coupled to the support structure and to the first rotatable subassembly, the actuator when activated producing a force urging the first rotatable subassembly to rotate relative to the support structure; and a cam track structure mounted to the support structure, the cam track structure comprising first and second cam surfaces, wherein the first and second joints of the drive linkage are trapped in the first and second cam surfaces respectively of the cam track structure, and wherein at least one of the first and second links comprises a weakened portion which is designed to fail when a structural overload is produced due to jamming.