Patent ID: 6324929
Filing Date: 2001-12-04
Classification: B64D,F16H,Y10T

Abstract:
Gearing group consisting of:two concentric twin shafts, said two concentric twin shafts including an inner shaft and an outer shaft in which said inner and outer shafts have a common axis of rotation and in which said inner shaft is freely rotatable within said outer shaft;a first main gear rigidly connected in rotation with said inner shaft, and a second main gear rigidly connected in rotation with said outer shaft;a solitary drive shaft which has a first coupling gear rigidly connected in rotation therewith and in direct meshing engagement with one of said first and second main gears, and said solitary drive shaft having a second coupling gear rigidly connected in rotation therewith; andan intermediate shaft having a first coupling gear and a second coupling gear both of which are rigidly connected in rotation with said intermediate shaft, said second coupling gear of said solitary drive shaft meshing directly with said first coupling gear of said intermediate shaft, and said second coupling gear of said intermediate shaft meshing directly with the other of said first and second main gears other than said one of said first and second main gears with which said first coupling gear of said solitary drive shaft directly meshes;said solitary drive shaft and said intermediate shaft extending in mutually parallel directions and inclined with respect to said common axis of rotation of said inner and outer shafts, said first and second main gears and the coupling gears which mesh directly with said first and second main gears all being bevel gears.