Abstract: A steering mechanism comprising a first swing bar (1) with a first link (12) designed to allow the swing bar (1) to pivot about an axis of rotation (z). A second link (13) collaborates via a second pivot (23) with a first member (33) collaborating with a first wheel (43), and a third link (14) collaborates via a third pivot (24) with a second member (34) collaborating with a second wheel (44). The second link and the third link are positioned symmetrically. A fourth link (15) is designed to be able to collaborate via a fourth pivot (25) with a linear actuator (4). The fourth link is offset from said central axis so that actuation of the linear actuator (4) causes the swing bar to rotate, and causes a rotation of the wheels (43, 44).

Abstract: Steering mechanism for orienting the steered wheels (1a-d) of a short vehicle with respect to the chassis, comprising one first vertical axis (2) per steered wheel, allowing each steered wheel (1a-d) to pivot with respect to said chassis and a first link (5a-d) allowing a torque to be applied to each steered wheel to make it pivot around said first vertical axis. The inner end of the link is able to slide along a straight rail (11a-d) which in turn is rotatably mounted with respect to the chassis 60. A second link (6a-d) not parallel to the wheels forces the first link (5a-d) to slide in a defined manner along a rail (11a-d). This makes possible the differentiated orientation of the left and right wheels. Advantage: very small turning radius. Particularly applicable to electric chairs for the disabled.

Abstract: Steering mechanism for orienting the steered wheels (1) of a short vehicle with respect to the chassis, comprising one first vertical axis (2) per steered wheel, allowing each steered wheel (1) to pivot with respect to said chassis and a link (5) allowing a torque to be applied to each steered wheel to make it pivot around said first vertical axis. The inner end of the link is able to slide along a straight rail (11) which in turn is rotatably mounted with respect to the chassis. A second link (6) not parallel to the wheels forces the first link (5) to slide in a defined manner along a rail (11). This makes possible the differentiated orientation of the left and right wheels. Advantage: very small turning radius. Particularly applicable to electric chairs for the disabled.