Eurocopter

Michel Morant

Jacques Joseph Gaffiero

François Lorin De La Grandmaison

Olivier Ardesi

Francois Lorin De La Grandmaison

The present invention relates to a rotorcraft rotor blade () that comprises at least one tiltable trailing-edge flap (), said flap () being suitable for pivoting about a virtual hinge axis (Y') extending substantially in the span direction of said blade () and of said flap (). The blade () is remarkable in that the flap () is provided with at least two fastener ball joints (), each provided with an inner cage () together with an outer cage () and a first pin () that is also secured to said flap (), the first pins () of the fastener ball joints () being perpendicular to the virtual pivot axis (Y&#x2032;) of the flap (). In addition, the blade () is provided at its trailing edge (BF) with a fastener tongue () provided with ball-receiving sockets (), the outer cages () of the fastener ball joints () being secured to the ball-receiving sockets ().

Rotorcraft blade provided with a tiltable flap and a fastener tongue

The present invention relates to a rotorcraft rotor blade () having at least one trailing edge flap () that is tiltable, the flap () being suitable for pivoting about a virtual hinge axis (Y') extending substantially along the span of the blade () and of the flap (). The blade () is remarkable in that the flap () is provided with at least one main ball joint () having an inner cage () and an outer cage (), and a first shaft () secured to the flap (), the front portion (&#x2032;) of the outer cage () of the main ball joint () being connected to a linear actuator () which is arranged in the blade () and which enables the flap () to be pivoted, the first shaft () of the main ball joint () extending substantially perpendicularly to the virtual hinge axis (Y&#x2032;) about which the flap () pivots.

Rotorcraft blade provided with a flap that is tiltable with the help of at least one main ball joint having a first shaft that is secured to said flap

A rotorcraft rotor blade () includes at least one tiltable trailing-edge flap (), the flap () being suitable for pivoting about a virtual hinge axis (Y') extending substantially along the span of the blade () and of the flap (). The blade () is remarkable in that it is provided with at least one main ball joint () provided with an inner cage () together with a first pin () and an outer cage (), the front portion (&#x2032;) of the outer cage () of the main ball joint () being connected to a linear actuator (&#x2032;) arranged in the blade () and serving to pivot the flap (), the first pin () of the main ball joint () being substantially perpendicular to the virtual hinge axis (Y&#x2032;) about which the flap () pivots.

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Bouc Bel Air, France

Michel Morant