Patent ID: 7857590
Filing Date: 2010-12-28
Classification: B64C

Abstract:
1. A folding rotor adapted to be mounted on a rotorcraft, the folding rotor comprising: a hub bar having a proximal end and a distal end, the proximal end being adapted to be connected to the rotorcraft; a first locking aperture in the distal end of the hub bar; a resilient bushing adapted to fit within the first locking aperture; a rotor blade having an inner end and an outer end; a rotor strap attached to the inner end of the rotor blade, the rotor strap extending to a mounting element having a second locking aperture; a hinge element hingably connecting the distal end of the hub bar to the mounting element of the rotor strap to enable the rotor blade to pivot with respect to the hub bar between a folded position and an extended position, wherein the first and second locking apertures and the resilient bushing are coaxially aligned when the rotor blade is in the extended position; and a locking pin adapted to be positioned through the first and second locking apertures and the resilient bushing to lock the rotor blade in the extended position.