DEVICE FOR FOLDING A BLADE, A BLADE, AND AN AIRCRAFT

摘要

A device (20) for folding a blade (5), the device comprising a fitting (30) and a cuff (50) connected to said fitting (30). The fitting (30) has at least one horizontal pin axis (31) perpendicular to a radial direction (AX2) and a clevis (35) axially offset relative to the horizontal pin axis (31) in the radial direction (AX2). The cuff (50) has an insert (51) inserted in said clevis (35), a vertical pin (70) passing through said clevis (35) and said insert (51). The cuff (50) includes at least one horizontal fastener pin axis (55) axially offset relative to said insert (51) along the radial direction (AX2), at least one lateral arm (80) connects said horizontal pin axis (31) to said fastener pin axis (55).

主权项

1. A device for folding a blade having a fitting suitable for being secured to a spar of an airfoil extending in a radial direction, the device for folding having a cuff connected to said fitting and suitable for being fastened to a hub, wherein:
the fitting has at least one horizontal pin axis perpendicular to the radial direction of the fitting, and at least one vertical pin orifice axially offset relative to the horizontal pin axis of the fitting along the radial direction; the cuff has at least one horizontal pin axis and a vertical pin orifice; said device for folding has a vertical pin passing through said pin orifice of the fitting and the vertical pin orifice of the cuff; and said device for folding includes at least one lateral arm connecting each horizontal pin axis of the fitting to a horizontal pin axis of the cuff in releasable manner so as to enable the fitting to pivot in rotation relative to the cuff about the vertical pin.