公开(公告)号：US20190233096A1

公开(公告)日：2019-08-01

申请号：US15882287

申请日：2018-01-29

Applicant: Bell Helicopter Textron Inc.

Inventor： Tyler Wayne BALDWIN ,  Kyle Thomas CRAVENER ,  Andrew MARESH

IPC: B64C27/33 ,  B64C27/50

Abstract: A tri-hybrid yoke including a center ring connected to a CF fitting connected to flexure arms. An inboard centrifugal force bearing assembly connects to the CF fitting and a grip. An outboard shear bearing assembly connects to the flexure arm and the grip. In use, the center ring and the CF fittings carry the centrifugal force at a position inboard of the flexure arm.

公开(公告)号：US20190185151A1

公开(公告)日：2019-06-20

申请号：US15845810

申请日：2017-12-18

Applicant: Bell Helicopter Textron Inc.

Inventor： Jared Mark PAULSON ,  Tyler Wayne BALDWIN ,  Kyle Thomas CRAVENER

IPC: B64C27/50 ,  B64C3/56

Abstract: A folding yoke comprising a bilateral center yoke pivotally connected to separate foldable yoke arms permits rotor blade fold about a single through bolt connection inboard of a set of bearings. In use, the compact folded arrangement of the rotor blades reduces folded aircraft dimensions in response to ever increasing restricted storage space parameters.

公开(公告)号：US20190185152A1

公开(公告)日：2019-06-20

申请号：US15845876

申请日：2017-12-18

Applicant: Bell Helicopter Textron Inc.

Inventor： Jared Mark PAULSON ,  Tyler Wayne BALDWIN ,  Kyle Thomas CRAVENER

IPC: B64C27/50 ,  B64C27/52 ,  B64C29/00

Abstract: A folding yoke comprising a center yoke pivotally connected to separate foldable flexible yoke arms permits rotor blade fold about a single through bolt connection inboard of a set of bearings. In use, the compact folded arrangement of the rotor blades reduces folded aircraft dimensions in response to ever increasing restricted storage space parameters.