Folding rotor for a rotorcraft

Details Folding rotor for a rotorcraft Folding rotor for a rotorcraft

2007-08-13

2010-12-28

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Working member foldable, pivotable or collapsible to non-use...

C416S13400R, C416S21000A

Reexamination Certificate

active

07857590

ABSTRACT:
A folding rotor has a hub bar pivotally connected to a rotor blade. The hub bar is adapted to be connected to the rotorcraft, and includes a first locking aperture having a resilient bushing. The rotor blade includes a rotor strap that extends to a mounting element having a second locking aperture. A hinge element hingably connects the hub bar to the mounting element to enable the rotor blade to pivot with respect to the hub bar between a folded position and an extended position. The first and second locking apertures and the resilient bushing are coaxially aligned when the rotor blade is in the extended position, so that a locking pin may be positioned therethrough to lock the rotor blade in the extended position.

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