Patent ID: 8282035

Claim:
A mechanical device suitable for combining first and second control orders for controlling the blade pitch of first and second rotary assemblies, said first and second control orders being given respectively by a main link and by one secondary link per rotary assembly, wherein the device comprises: a carrier structure provided with first and second end zones, said first end zone being suitable for being fastened to a support by at least one main fastener pin of said mechanical device, with said carrier structure being suitable for performing pivoting movement about said pin, said second end zone being provided with a primary hinge suitable for being hinged to said main link; first and second connection levers disposed on either side of said carrier structure, first and second ends of the first connection lever being provided respectively with a first secondary hinge and with a first control hinge for being connected to a first secondary link and to a first control rod for controlling the pitch of the blades of the first rotary assembly, first and second ends of the second connection lever being provided respectively with a second secondary hinge and with a second control hinge suitable for being connected to a second secondary link and to a second control rod for controlling the pitch of the blades of the second rotary assembly; a first secondary fastener pin of the first connection lever connected firstly to said carrier structure and secondly fastened by first rotary means to the first connection lever; and a second secondary fastener pin of the second connection lever being secured firstly to said carrier structure, and being fastened secondly by second rotary means to the second connection lever.