Patent ID: 7994650

Claim:
A rotor blade for a wind energy installation, in which the rotor blade ( 22 ) is formed in at least two parts, with respect to the rotor blade longitudinal direction, in order to temporarily reduce the longitudinal extent of the rotor blade ( 22 ) during rotor blade transportation, wherein: individual rotor blade segments ( 24 , 26 ) are fitted to one another, one behind the other in the longitudinal direction, in order to assemble the rotor blade ( 22 ); in each case at least two of the rotor blade segments ( 24 , 26 ) are rotatably or non-rotatably connected to one another; the individual rotor blade segments ( 24 , 26 ) each have at least one suitable contact surfaces ( 28 , 30 ) which rest directly or indirectly on one another in the assembled state of the rotor blade ( 22 ); and at least one of the individual rotor blade segments ( 24 , 26 ) is tensioned by means of a tensioning apparatus, which is controlled and/or regulated, in the direction of the rotor center of a wind energy installation ( 10 ), and/or is attached indirectly or directly in a stressed manner to another rotor blade segment ( 24 , 26 ) and/or to the blade connection and/or to a hub ( 20 ) and/or to some other component of a wind energy installation ( 10 ).