公开(公告)号：US20210362837A1

公开(公告)日：2021-11-25

申请号：US16879114

申请日：2020-05-20

Applicant: Bell Textron Inc.

Inventor： Kyle Thomas Cravener ,  Andrew Ryan Maresh ,  Brady Garrett Atkins ,  Kynn J. Schulte ,  Troy Schank

IPC: B64C11/28 ,  B64C11/06

Abstract: Embodiments are directed to a blade lock comprising a fold lock adapted to prevent folding of a rotor blade in a fold-lock position and to allow folding of the rotor blade in a pitch-lock position. The blade lock further comprises a pitch lock adapted to allow pitch movement of a rotor blade in a fold-lock position and to prevent pitch movement of the rotor blade in the pitch-lock position. A spring-loaded link pivotally connects both the fold lock and the pitch lock and is adapted to provide passive, overcenter locking in the fold-lock position. An actuator is coupled to the pitch lock and is adapted to move the pitch lock and the fold lock between the fold-lock and pitch-lock positions.

公开(公告)号：US11511848B2

公开(公告)日：2022-11-29

申请号：US16879114

申请日：2020-05-20

Applicant: Bell Textron Inc.

Inventor： Kyle Thomas Cravener ,  Andrew Ryan Maresh ,  Brady Garrett Atkins ,  Kynn J. Schulte ,  Troy Schank

IPC: B64C11/28 ,  B64C11/06 ,  B64C29/00

Abstract: Embodiments are directed to a blade lock comprising a fold lock adapted to prevent folding of a rotor blade in a fold-lock position and to allow folding of the rotor blade in a pitch-lock position. The blade lock further comprises a pitch lock adapted to allow pitch movement of a rotor blade in a fold-lock position and to prevent pitch movement of the rotor blade in the pitch-lock position. A spring-loaded link pivotally connects both the fold lock and the pitch lock and is adapted to provide passive, overcenter locking in the fold-lock position. An actuator is coupled to the pitch lock and is adapted to move the pitch lock and the fold lock between the fold-lock and pitch-lock positions.