Patent ID: 6050521
Filing Date: 2000-04-18
Classification: B64C,Y10S

Abstract:
A releasable coupling for a power transmission line to a tail rotor of a helicopter having a body and a tail section movable, with respect to said body, between a work position and a folded position; said coupling comprising a first coupling assembly including a first support rigidly connected to said body of the helicopter and a first transmission member drivingly connected to a first portion of said transmission line, and a second coupling assembly including a second support rigidly connected to said tail section of the helicopter and a second transmission member drivingly connected to a second portion of said transmission line; the two coupling assemblies cooperating with each other when said tail section is in said work position and released when said tail section is in said folded position, said first and second transmission members having respective radial toothings meshing with each other in said work position of said tail section; and cooperating telescopically with each other; said coupling comprising orientable supporting means interposed between at least one of said supports and a corresponding one of said transmission members; and said coupling assemblies comprising lead-in means which are brought into contact with each other prior to the respective toothings to guide connection of the transmission members.