Patent ID: 8074921

Claim:
A rotor ( 4 ) for a helicopter ( 1 ), the rotor comprising a drive shaft ( 10 ) rotating about a first axis (B); a hub ( 11 ) connected functionally to said drive shaft ( 10 ) in angularly fixed manner with respect to said first axis (B) and in rotary manner with respect to a second axis (C) crosswise to said first axis (B); at least two blades ( 12 ) connected functionally to said hub ( 11 ) in angularly fixed manner with respect to said first and second axis (B, C) and in rotary manner with respect to respective third axes (D); and supporting means ( 50 ) for supporting said blades ( 12 ) with respect to said hub ( 11 ) in rotary manner about the respective third axes (D); the rotor being characterized in that said supporting means ( 50 ) comprise at least one supporting member ( 60 ) made at least partly of elastomeric material and interposed between a first surface ( 44 ), and a second surface ( 24 ) integral with a respective said blade ( 12 ) and with said hub ( 11 ) respectively; said supporting member ( 60 ) deforming, in use, to permit rotation of said respective blade ( 12 ), with respect to said hub ( 11 ), about said respective third axis (D).