Grip-yoke assembly with a redundant centrifugal load support

Details Grip-yoke assembly with a redundant centrifugal load support Grip-yoke assembly with a redundant centrifugal load support

B - Operations, Transporting

64

C

244/15

B64C 27/04 (2006.01)

Patent

CA 1059097

ABSTRACT OF THE DISCLOSURE A grip-yoke assembly for attaching a helicopter blade to the mast of the helicopter rotor having a conven- tional primary coupling to carry the centrifugal loads and a redundant path operative should the primary coupling fail to insure continued operability of the blade. In one embodiment, the redundant load path has a bearing surface formed on the inboard end of the grip and a corresponding thrust bearing mounted on an inboard yoke fitting for engagement with the bearing surface upon failure of the coupling. In an alternative embodiment, a bearing surface is formed on an outboard grip fitting and a corresponding thrust bearing is supported on the yoke outboard of the grip fitting.

281190

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