Disconnect coupling for drive shafts

摘要: This invention relates to a disconnect coupling for drivingly connecting separate parts of drive shaft, and finds particular application in helicopter tail rotor shafts. The comprises components fixed respectively the shaft being separable generally axial direction enable be disconnected, includes retaining means automatically operative prevent separation during rotation. In one embodiment cylindrical member is coupled part adjacent end radially inwardly extending flange having central aperture co-operation with secured on other part, arranged protrude through when are connected. Internal gear teeth provided mesh external rotationally transmit torque between A plurality flyweights so that at least each flyweight extended rotation movement prevented thereby