Improvements to the devices for coupling selectively has a drive shaft has two distinct trainers

摘要

It is coupled to will a shaft drives 2, intended in particular by adjusting the orientation of the blades of a helix of a boat, or at the output shaft 1 of a motor, or a member 3 can be controlled by hand. It is necessary for this purpose has three crowns fluted internally coaxial juxtaposed axially and are joined, the two materials 13, 14 of the two shafts and the third 16 of the member, a core cannele externally 15, has a worm wheel 22 integral with the member and co-acting with a worm 23 controlled by a crank rise to a head 28 and arranged so as to control the axial sliding of the core by means of thrust a bearing 32 and of springs 33.