Patent ID: 7240764

Claim:
Steering unit of an electric vehicle, the steering unit comprising an electric motor ( 4 ) having a tubular output shaft ( 10 ) assembled so as to rotate around its own particular longitudinal axis ( 8 ); and a steering rod ( 15 ) assembled through said output shaft ( 10 ) and connected to the same output shaft ( 10 ) by means of a screw-nut screw coupling ( 14 ) in order to move along said axis ( 8 ) and control the steering of a pair of wheels ( 2 ) of the vehicle; and being characterized in that the output shaft ( 10 ) has an external thread ( 12 ); the steering rod ( 15 ) includes a sleeve ( 16 ) extending around the same output shaft ( 10 ) and having an internal thread ( 21 ) connected to said external thread ( 12 ); said sleeve ( 16 ) comprises a widened portion ( 17 ) extending around said output shaft ( 10 ) and a narrowed portion ( 18 ): the steering rod ( 15 ) further comprises a rod ( 22 ) protruding from said narrowed portion ( 18 ) to engage said output shaft ( 10 ).