Steering unit for an electric vehicle
AssigneeUmbra Cuscinetti S.P.A.
InventorsFederico Perni, Luciano Pizzoni, Lucio Lopparelli
Life of this patent
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Abstract
A steering unit of an electric vehicle is equipped with an electric motor having a tubular output shaft assembled so as to rotate around its own longitudinal axis, and a steering rod assembled through the output shaft and connected to the same output shaft by means of a screw-nut screw coupling so as to control the steering of a pair of wheels of the vehicle; the steering rod being equipped with a sleeve extending around the output shaft and having an internal thread connected to an external thread of the same output shaft.
Claims7
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).
Dependencies are inferred from the claim text.