CABLE COLLECTING WINCH
A cable collecting winch ( 1 ) comprises a collecting drum ( 2 ) rotatably actuatable about a respective longitudinal axis (X-X) to wind/unwind a cable ( 100 ), and a cable guide device ( 3 ) kinematically connected with the collecting drum ( 2 ) and adapted to translate along a direction parallel to said longitudinal axis (X-X) upon rotation of the collecting drum ( 2 ) to guide the winding/unwinding of the cable ( 100 ). The collecting drum ( 2 ) and the cable guide device ( 3 ) form a nut and screw assembly wherein such components are respectively the screw and the nut of said nut and screw assembly.
1 . A cable collecting winch comprising:
a collecting drum rotatably actuatable about a respective longitudinal axis (X-X) to wind/unwind a cable, and,
a cable guide device kinematically connected to said collecting drum and adapted to translate along a direction parallel to said longitudinal axis upon rotation of the collecting drum to guide the winding/unwinding of said cable, characterised in that said collecting drum and said cable guide device form a nut and screw assembly wherein the collecting drum and the cable guide device are respectively the screw and the nut of the nut and screw assembly.
2 . The winch of claim 1 , wherein said collecting drum is provided with a groove helically extended on a outer surface thereof, adapted to define a threading of the screw of said nut and screw assembly, and said groove has a width adapted to receive said cable.
3 . The winch of claim 1 , further comprising recirculating rolling elements operatively interposed between said collecting drum and said cable guide device.
4 . The winch of claim 3 , wherein said collecting drum is provided with a groove helically extended on a outer surface thereof, adapted to define a threading of the screw of said nut and screw assembly, and said groove has a width adapted to receive said cable, and said groove defines, in a direction parallel to said longitudinal axis, a plurality of throats each receiving two rolling elements.
5 . The winch of claim 3 , wherein said rolling elements are balls.
6 . The winch of claim 3 , wherein said rolling elements are made of plastic material.
7 . The winch of claim 1 , further comprising a guide rail for said cable guide device.
8 . The winch of claim 1 , wherein said cable guide device comprises at least one diverter pulley.
9 . The winch of claim 1 , wherein at least one of said collecting drum and said cable guide device is made of a light metal alloy.
10 . The winch of claim 1 , wherein at least one of said collecting drum and said cable guide device is made of a composite material.