OVER-CENTERING BLADE LOCK
    1.
    发明申请

    公开(公告)号:US20210107638A1

    公开(公告)日:2021-04-15

    申请号:US16599471

    申请日:2019-10-11

    Abstract: An exemplary blade lock for a tiltrotor aircraft to enable and disable a folding degree of freedom and a pitching degree of freedom of a rotor blade assembly includes a link pivotally connected to a lever and a bellcrank, where the link is in a center position when the lever is in a locked position disabling the folding degree of freedom and the lever is secured in the locked position when the link is positioned in an over-center position.

    ADDITIVE MANUFACTURE PROPROTOR BLADE

    公开(公告)号:US20210101672A1

    公开(公告)日:2021-04-08

    申请号:US16590618

    申请日:2019-10-02

    Abstract: An exemplary proprotor blade assembly includes a structural skin extending spanwise from a root to a tip and along a chord from leading edge to a trailing edge and a structural core positioned inside of the structural skin, the structural skin comprising hex-shaped structures oriented normal to the structural skin.

    ELASTOMERIC PITCH LOCK RESTRAINT
    4.
    发明申请

    公开(公告)号:US20210114721A1

    公开(公告)日:2021-04-22

    申请号:US16655855

    申请日:2019-10-17

    Abstract: An exemplary pitch lock for a tiltrotor aircraft to enable and disable a pitching degree of freedom of a rotor blade assembly includes a first tab coupled to a blade stop assembly, the first tab having a first ramp surface, a second tab coupled to a blade cuff, the second tab having a second ramp surface, a hasp having a central opening to receive the first and the second tab and rollers rotatably coupled to the hasp on opposite sides of the central opening, where the rollers engage the first and second ramp surfaces and retain the first and the second tabs in the central opening.

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